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1
Palmer, EdD, Charles G. "Stress and coping in wildland firefighting dispatchers." Journal of Emergency Management 12, no. 4 (February 19, 2016): 303. http://dx.doi.org/10.5055/jem.2014.0181.
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Objective: To gain a better understanding of the stressors faced by wildland firefighting dispatchers and how they cope with it.Design: Qualitative method of phenomenology.Setting: Dispatch centers around the western United States.Subjects: Subjects were recruited via e-mail solicitation. Only currently employed wildland firefighting dispatchers with extensive dispatching experience were selected. Dispatchers included in this study were employed at the local (3), geographic (4), or national level (4). Eleven dispatchers in total were interviewed, six females and five males. Average experience level as a dispatcher was 14.2 years.Interventions: In-person interviews.Results: Three broad categories of stressors were revealed: balancing personal and professional lives, contending with job-related issues, and dealing with issues related to control. Four coping strategies also emerged: taking time off, exercising, providing a service to firefighters, and receiving support from others.Conclusions: In general, a complex and at times even a paradoxical relationship between the dispatchers interviewed and stress was noted. In other words, while subjects felt that the stressors experienced as a dispatcher had the ability to negatively affect their performance, they also believed that stress was beneficial at times. Future research is recommended to further our understanding of workplace stressors for wildland fire dispatchers, and how they cope with them.
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Kaptsevich, O. A., D. I. Rabchenok, and K. Y. Ponomarev. "EXPERIMENTAL STUDIES OF THE INTERFACE DEVELOPED USING THE METHOD OF INFORMATION MODEL SYNTHESIS AT THE AUTOMATED WORKSTATION OF AIR TRAFFIC CONTROL MANAGER." Doklady BGUIR, no. 7-8 (December 29, 2019): 149–56. http://dx.doi.org/10.35596/1729-7648-2019-126-8-149-156.
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Using the method of synthesis of the information model at the automated workstation of the air traffic control dispatcher, a fragment of the user interface at the automated workstation of the radar control dispatcher of the Minsk district control center was synthesized, which allows to simulate the stages of the dispatcher's activity in the automated air traffic control system at the modern level of air traffic intensity. The verification of the adequacy and effectiveness of the synthesized user interface fragment was carried out directly with the participation of experts and specialists with experience in such systems. The adequacy of the synthesized user interface fragment was evaluated using a known consent criterion. The evaluation of the efficiency of the synthesized fragment of the user interface of the environment at the dispatcher's automated workstation was carried out under conditions of high air traffic intensity, which force the radar control dispatcher to control in critical mode of operation. Shows the advantage of a synthesized user interface fragment over an existing user interface in terms of time and accuracy. In general, the synthesized user interface fragment exceeds the existing one by about thirty percent. The synthesized user interface fragment noted the more stable activities of the subjects, as well as their better learning capability compared to the existing user interface. The developed experiment scheme allows to carry out research of engineering and psychological factors in human-machine systems of special purpose, including analysis of user interfaces at automated workstations of dispatching personnel in existing automated systems of air traffic control for their assessment and further improvement.
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Ostanin, Andrey, Dmitriy Lotsman, Alexey Vasilyev, and Vladislav Fomenko. "Dispatch’s decision-making support during operational voltage control in control stations." E3S Web of Conferences 209 (2020): 07009. http://dx.doi.org/10.1051/e3sconf/202020907009.
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Voltage and reactive power mode control is performed by dispatcher for the purpose of ensuring required reserves on steady state stability and load stability as well as permissible voltage operating conditions of electric grid equipment. The decision made by dispatcher engaged in controlling reactive power and voltage modes is founded on instructional materials developed in advance for each voltage control station (CS) with focus on data about typical modes of power system or energy area operation. The actual efficiency of reactive power compensation facilities depends on many factors (the composition and operation of grid elements, the composition and operation of generating equipment, etc.). To make final and balanced decision, in some cases, it is necessary to perform some estimation calculations, which take more time for decision making. To minimize and reduce the time required by dispatcher for their decision making and improve its accuracy when involved in voltage and reactive power mode control, it is reasonable to develop software able to determine the efficiency of reactive power compensation facilities in real time.
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Popov, S. I., G. A. Galchenko, Yu V. Marchenko, and D. S. Drozdov. "Electronic control of the dispatch schedule as means of reduction of emissions of harmful substances by buses." SAFETY OF TECHNOGENIC AND NATURAL SYSTEMS, no. 2 (2021): 50–57. http://dx.doi.org/10.23947/2541-9129-2021-2-50-57.
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Introduction. Environmental contamination by vehicles is one of the main and important questions. Road transport is on the first place by quantity of harmful substances released into the atmosphere. The railway transportation pollutes environment by 3 %, planes — by 6 % from the total amount of pollution. The rest is motor transport. As it is known, the maximum quantity of harmful substances is thrown out in an idle mode of work of the engine, i.e. at idle times at stops. The improvement of an ecological situation on transport highways is possible by the optimization of movement of city public transport. Problem Statement. The task was to develop a project that allows you to eliminate violations of the dispatch schedule of city buses. It is proposed to use the computer program "Line Dispatcher" developed by the authors and a mobile application to monitor the compliance with the dispatch schedule. Theoretical Part. The field observations carried out on one of the most intense sections of the transport arteries of Rostov-on-Don — the ring at the intersection of Vavilova and Koroleva streets — show how many buses produce harmful emissions only on one section, stand idle at the stop, do not fulfill the dispatching schedule, and, thereby, worsen the environmental situation in the city. The authors have developed a computer program "Line Dispatcher", which allows you to: download a map of the city or a district, the information about the stops on the route and the timetable; choose the desired route; monitor the movement of the bus according to the schedule. The mobile app can be installed on any smartphone of the driver and dispatcher. Conclusion. A practical solution is proposed to optimize the activity of public transport, which will eliminate downtime at stops due to electronic control of the dispatch schedule and reduce emissions of harmful substances by urban public transport.
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Huang, Lixiao, Victoria Chibuogu Nneji, and Mary Cummings. "How Airline Dispatchers Manage Flights: A Task Analysis in Distributed and Heterogeneous Network Operations." Proceedings of the Human Factors and Ergonomics Society Annual Meeting 63, no. 1 (November 2019): 1389–93. http://dx.doi.org/10.1177/1071181319631182.
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Equipped with technology, airline dispatchers interact with multiple entities to maximize the safety and efficiency of flights. How well the overall airline system performs is influenced by dispatchers’ workload. In order to assist future work in developing advanced automated technologies to assist dispatchers, particularly under high-workload periods, this paper presents an analysis of airline dispatchers’ tasks in a large operations control center. This is an important step in developing airline dispatcher workload simulations and other analytical approaches that assist in staffing of operations for dynamic operations, as well as estimating the impact of new technology on dispatchers’ workload.
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Pakhomov, Yu, N. Shulga, and L. Piddubna. "ON THE QUESTION OF THE EFFECTIVENESS OF NETWORK TECHNOLOGIES IN AUTOMATED GAS SUPPLY SYSTEMS." Municipal economy of cities 1, no. 161 (March 26, 2021): 267–73. http://dx.doi.org/10.33042/2522-1809-2021-1-161-267-273.
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The topical issues of development of automated control systems of gas control stations (GCS) and ways of reliable and economical functioning of the gas supply system in modern conditions have been considered in the article. The implementation of European innovative technologies, which are associated with using the modern equipment, telemetry tools to transmit the equipment operation parameters to the dispatcher control panel are the one of the ways to increase the safety and efficiency of GCS performance. The characteristic of the modern complex of telemetry, the raising of efficiency, reliability and safe operation of the gas supply systems due to the possibility of monitoring, technological control and management from the central dispatcher control room are given. The complex of telemetry helps to prevent emergency situations at facilities and to ensure control over unauthorized entry into the GCS premises by unauthorized persons. The article discusses the use of the automated system of operative-dispatching management (ASODM). It is a multi-level automated system that ensures the reliable functioning of the gas supply system at all levels of the hierarchy. It has been shown that the result of the creation of the ASODM are equipping of the control object with microprocessor control and management devices, the integration of various automation tools into a single information management system. It has been proven that the development of ASODM of GCS on the basis of local control and management modules using traditional approaches to creation of automation systems and using the cellular telephone communication as data transmission channels based on GSM-technologies are most rational. The digital control device, which is made on the technological platform of the programmable logic integrated circuit (PLIC), is the main element of the local control and management module. Digital control device (PLIC controller) is a relatively inexpensive and reliable equipment in an automated local GCS control system. The method of data transmission via GSM / GPRS wireless communication channel is considered. The use of GSM-modems and GPRS technology allows to remove restrictions on the distance of data transmission, as well as allows to fully automate the process of transmission and processing of information. The use of GSM / GPRS-technologies in the vehicles of the emergency dispatch service is also shown. The dispatcher can fully monitor the movement of the car with registration on the map of the city where the car is located.
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Dement'eva, Marina, and Anastasiya Dement'eva. "Modeling work of the dispatching service of high-rise building as queuing system." E3S Web of Conferences 33 (2018): 03067. http://dx.doi.org/10.1051/e3sconf/20183303067.
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The article presents the results of calculating the performance indicators of the dispatcher service of a high-rise building as a queuing system with an unlimited queue. The calculation was carried out for three models: with a single control room and brigade of service, with a single control room and a specialized service, with several dispatch centers and specialized services. The aim of the work was to investigate the influence of the structural scheme of the organization of the dispatcher service of a high-rise building on the amount of operating costs and the time of processing and fulfilling applications. The problems of high-rise construction and their impact on the complication of exploitation are analyzed. The composition of exploitation activities of high-rise buildings is analyzed. The relevance of the study is justified by the need to review the role of dispatch services in the structure of management of the quality of buildings. Dispatching service from the lower level of management of individual engineering systems becomes the main link in the centralized automated management of the exploitation of high-rise buildings. With the transition to market relations, the criterion of profitability at the organization of the dispatching service becomes one of the main parameters of the effectiveness of its work. A mathematical model for assessing the efficiency of the dispatching service on a set of quality of service indicators is proposed. The structure of operating costs is presented. The algorithm of decision-making is given when choosing the optimal structural scheme of the dispatching service of a high-rise building.
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Zasjad’ko, K. I., A. V. Bogomolov, S. K. Soldatov, A. P. Vonarshenko, A. F. Borejchuk, and M. N. Jazljuk. "Changes in indicators of intonation structure of speech in occupational activity of air traffic control operators." Occupational Health and Industrial Ecology, no. 1 (March 14, 2019): 31–37. http://dx.doi.org/10.31089/1026-9428-2019-1-31-37.
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Introduction.The study is aimed to determine possible use of vocal signal analysis for diagnosis of functional states in air traffic control operators, with justifying selection of informative parameters of intonation structure of speech.Materials and methods.Experiments on semi-natural simulator complex with participation of 16 air traffic male dispatchers modelled occupational activity of air traffic dispatcher with moderate (6 aircrafts controlled) and intense (7–12 aircrafts controlled) work load. Duration of simulated working shiftwas 6 hours. Registration covered characteristics of main vocal tone of the examinees, with calculation of 8 jitter-factors that portrayed mirco-changes of main vocal tone curve and 2 tremor indices disclosing periodic waves of 4–16 Hz in main vocal tone curve. Functional state of the dispatchers was assessed via cardiac rhythm parameters. Reliability and work capacity of the dispatchers corresponded to correct radio traffi c, changes in threshold of reception and transfer of aircrafts in number of allowable dangerous approach of aircrafts, time to detection of input aircraft’s deviation from preset flight line.Results and discussion.According to analysis of the experiments results, some parameters of the main vocal tone carried significant changes both in first (simulated moderate work load) and second (simulated intense work load) experimental series.The data obtained prove lower level of psychic regulation of the dispatchers’ occupational activity during 3rd to 5thhours of “working shift” in the first experimental series and from 2nd to 4thhours of the second experimental series, due to decreased psychophysiologic resources and developing fatigue.Conclusion.Studies of changes in indicators of intonation structure of speech in occupational activity of air traffic dispatchers demonstrated that using such indicators provides adequate diagnosis of the functional state. The most informative indicators are average value, histogram asymmetry and excessive frequency of main vocal tone, duration of pauses between words of the dispatchers’ commands and fi ft h jitter-factor.
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SINGER, D. "Improving the quality of dispatcher control by sliding mode operation." International Journal of Systems Science 18, no. 10 (January 1987): 1863–71. http://dx.doi.org/10.1080/00207728708967159.
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Khoshkhoo, Roohollah. "Adaptation of Line Operations Safety Audit (LOSA) to Dispatch Operations (DOSA)." Journal of Airline and Airport Management 7, no. 2 (January 29, 2018): 126. http://dx.doi.org/10.3926/jairm.112.
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Purpose: Dispatch Operations Safety Audit (DOSA) is a proactive and predictive method in safety management system that detects the capabilities and pitfalls of dispatcher performance. In this study, Dispatch-Line Operations Safety Audit is carried out in an airline and results are analyzed and discussed.Design/methodology/approach: The method of DOSA implementation for flight operations officers is similar to LOSA for flight crew.Findings: Results show that DOSA has an important effect on Threat and Error Management (TEM) in the Operations Control Center (OCC).Originality/value: Potential applications of this research include the better threat and error management in OCC with the implementation of DOSA as well as identification of threats and errors types for FOOs in OCC. Also distribution of threats and errors in different phases of dispatch shift is discussed, therefore syllabuses of training courses can be provided with respect to threat and error types for flight operations officers.
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Bykova, V. S., L. A. Martynova, A. I. Mashoshin, and I. V. Pashkevich. "A Dispatcher for a Multi-Agent Control System of an Autonomous Underwater Vehicle: Structure, Algorithms, and Simulation Results." Giroskopiya i Navigatsiya 28, no. 3 (2020): 109–21. http://dx.doi.org/10.17285/0869-7035.0041.
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Algorithms for a dispatcher of a multi-agent control system for an autonomous underwater vehicle (AUV) are described. The algorithms are designed on a modular basis, which provides for the control of a wide range of tasks assigned to the AUV, and, in addition, makes the implementation of each algorithm simple.
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Zhao, Bobo, Tao Tang, Bin Ning, and Wei Zheng. "Hybrid Decision-making Method for Emergency Response System of Unattended Train Operation Metro." PROMET - Traffic&Transportation 28, no. 2 (April 25, 2016): 105–15. http://dx.doi.org/10.7307/ptt.v28i2.1760.
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Suitable selection of the emergency alternatives is a critical issue in emergency response system of Unattended Train Operation (UTO) metro system of China. However, there is no available method for dispatcher group in Operating Control Center (OCC) to evaluate the decision under emergency situation. It was found that the emergency decision making in UTO metro system is relative with the preferences and the importance of multi-dispatcher in emergency. Regarding these factors, this paper presents a hybrid method to determinate the priority weights of emergency alternatives, which aggregates the preference matrix by constructing the emergency response task model based on the Weighted Ordered Weighted Averaging (WOWA) operator. This calculation approach derives the importance weights depending on the dispatcher emergency tasks and integrates it into the Ordered Weighted Averaging (OWA) operator weights based on a fuzzy membership relation. A case from train fire is given to demonstrate the feasibility and practicability of the proposed methods for Group Multi-Criteria Decision Making (GMCDM) in emergency management of UTO metro system. The innovation of this research is paving the way for a systematic emergency decision-making solution which connects the automatic metro emergency response system with the GMCDM theory.
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Filip, F. G., and D. A. Donciulescu. "Dispatcher-R: A Computer Aid in Modelling and Operational Control in Refineries." IFAC Proceedings Volumes 19, no. 1 (January 1986): 63–68. http://dx.doi.org/10.1016/s1474-6670(17)59866-3.
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Kaptsevich, O. A., A. V. Dubovskiy, and D. I. Rabchenok. "The time component of analytical model of the air traffic control dispatcher actions." Doklady BGUIR, no. 5 (July 3, 2019): 79–86. http://dx.doi.org/10.35596/1729-7648-2019-123-5-79-86.
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Scott, Greg, Tracey Barron, Isabel Gardett, Meghan Broadbent, Holly Downs, Leslie Devey, EJ Hinterman, Jeff Clawson, and Christopher Olola. "Can a Software-Based Metronome Tool Enhance Compression Rate in a Realistic 911 Call Scenario Without Adversely Impacting Compression Depth for Dispatcher-Assisted CPR?" Prehospital and Disaster Medicine 33, no. 4 (July 23, 2018): 399–405. http://dx.doi.org/10.1017/s1049023x18000602.
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AbstractIntroductionImplementation of high-quality, dispatcher-assisted cardiopulmonary resuscitation (DA-CPR) is critical to improving survival from out-of-hospital cardiac arrest (OHCA). However, despite some studies demonstrating the use of a metronome in a stand-alone setting, no research has yet demonstrated the effectiveness of a metronome tool in improving DA-CPR in the context of a realistic 911 call or using instructions that have been tested in real-world emergency calls.HypothesisUse of the metronome tool will increase the proportion of callers able to perform CPR within the target rate without affecting depth.MethodsThe prospective, randomized, controlled study involved simulated 911 cardiac arrest calls made by layperson-callers and handled by certified emergency medical dispatchers (EMDs) at four locations in Salt Lake City, Utah USA. Participants were randomized into two groups. In the experimental group, layperson-callers received CPR pre-arrival instructions with metronome assistance. In the control group, layperson-callers received only pre-arrival instructions. The primary outcome measures were correct compression rate (counts per minute [cpm]) and depth (mm).ResultsA total of 148 layperson-callers (57.4% assigned to experimental group) participated in the study. There was a statistically significant association between the number of participants who achieved the target compression rate and experimental study group (P=.003), and the experimental group had a significantly higher median compression rate than the control group (100 cpm and 89 cpm, respectively; P=.013). Overall, there was no significant correlation between compression rate and depth.Conclusion:An automated software metronome tool is effective in getting layperson-callers to achieve the target compression rate and compression depth in a realistic DA-CPR scenario.Scott G, Barron T, Gardett I, Broadbent M, Downs H, Devey L, Hinterman EJ, Clawson J, Olola C. Can a software-based metronome tool enhance compression rate in a realistic 911 call scenario without adversely impacting compression depth for dispatcher-assisted CPR? Prehosp Disaster Med. 2018;33(4):399–405
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LINGVAY, Iosif, Victorin Emilian TOADER, Ovidiu CIOGESCU, Adriana BORȘ, and Andrei MIHAI. "Complex System for Earthquake Prediction, Warning and Local Assessment of Seismic Events." Electrotehnica, Electronica, Automatica 69, no. 1 (February 15, 2021): 80–89. http://dx.doi.org/10.46904/eea.21.69.1.1108011.
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A complex system for zonal earthquake prediction, warning, and local assessment of seismic events has been designed, performed, implemented, and experimented/validated. The system was designed to ensure simultaneously: the reception of warning signals following earthquakes with the epicentre on a radius of 1000 km; acquisition of local precursor data for a possible prediction of seismic events with the epicentre in the perimeter of the targeted locality and/or improvement of the database in the field of Earth physics purchased and processed centrally at the national seismic dispatcher; acquisition of data on the intensity of local seismic movements, based on which, when a predetermined threshold considered dangerous is exceeded, a real-time action order is issued for the protection of high-risk equipment and installations in operation. The realized system is structured on the national seismic dispatcher DSN (with the role of seismic data acquisition from the territory) connected by a bidirectional communication system with a local dispatcher DL which is provided with a system for acquiring and storing local seismic data (vibration detector 3D and temperature transducer mounted in a 40 m deep drilled well, radon detector and associated parameters: temperature, pressure, and humidity of the air mounted at the mouth of the drilled well). The implemented system is able, through the specialized software implemented, to take over the warning signals received from the national seismic dispatcher, to process the locally acquired data, and after the local validation of the seismic event to issue real-time action command (when exceeding values of pre-established major risk threshold) of the protections of high-risk installations in operation in the targeted perimeter. The experimentation/validation of the system, of the interconnection networks, and of the specialized software of the implemented application was done both by continuously recording the local seismic parameters, verifying the communication between DSN and DL, and by taking two warnings regarding seismic events produced (on 30.10.2020 Mw = 7, Greece and on 22.10.2020, at 20:22 hours, ML = 4 R, Vrancea, RO). By processing the data recorded during these events, the speeds of seismic waves in the respective directions were calculated. Thus, for the event of 30.10.2020 Greece, a speed of seismic waves of 7,418 km/second was determined and for the event from 22.10.2020 Vrancea, at 20:22 hours, it was calculated that the secondary waves are moving with 12,686 km/second and the surface seismic waves with 5,063 km/second. Following the analysis/comparison of acceleration intensities with the pre-set threshold level recorded locally for potentially dangerous events, it was found that these events were felt in Râmnicu Vâlcea at a level below the pre-set danger threshold and consequently, the specialized software of the application did not generate a control signal for actuating the protection of high-risk equipment in operation.
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Shen, Zhi Peng, Ning Zhang, and Yu Ting Wang. "DCOM Based Group Communication for Ship Motion Virtual Simulation." Applied Mechanics and Materials 182-183 (June 2012): 1007–12. http://dx.doi.org/10.4028/www.scientific.net/amm.182-183.1007.
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Virtual reality based visual interactive simulation system is proposed and completed, which applied integrated intelligent control to ship steering and main engine. For the multipoint communication of the proposed distributed visual simulation system, a DCOM based communication model is discussed. The group communications is divided into three layers from bottom to top. Based on static and dynamic combined algorithm, a dispatcher using centrality load balancing is also presented.
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Gnezdilova, Olga, Galina Shedrina, and Vasily Amelin. "Modeling of Natural Gas Transportation and Distribution in Low Pressure Gas Pipelines." Applied Mechanics and Materials 725-726 (January 2015): 1307–12. http://dx.doi.org/10.4028/www.scientific.net/amm.725-726.1307.
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It is known that the area of the implementation of automated systems for remote control of the technological processes of gas transportation and distribution, as well as its commercial metering and consumption is set for the settlements with population exceeding 100 thousand people. It has a centralized structure, including the lower level − controlled stations, and the upper level − central dispatcher board, which is implemented in the form of automation-equipped workstations connected using computer networks.
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Hashemzade, Bahare, and Ali Maroosi. "Hybrid Obfuscation Using Signals and Encryption." Journal of Computer Networks and Communications 2018 (2018): 1–6. http://dx.doi.org/10.1155/2018/6873807.
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Obfuscation of software and data is one of the subcategories of software security. Hence, the outlines of the obfuscation problem and its various methods have been studied in this article. This paper proposes a hybrid of two signals and encryption obfuscation to hide the behaviour program and prevent reconstruction of the normal code by hackers. The usual signal method is strong enough for obfuscation, but its problem is the high complexity because of a lot of call and return instructions. In this study, a new dispatcher was added to the source code to reconstruct the original control flow graph from the hidden one to solve the problem of the signal method. This dispatcher code is encrypted to preclude access by the hacker. In this paper, the potency that makes the obfuscation strong has been increased and the resilience that makes the obfuscation poor has been decreased. The results of a comparison of the similarity among the ambiguous data with its original code and with available efficient methods present a performance advantage of the proposed hybrid obfuscation algorithm.
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Kochan, Andrzej, Emilia Koper, and Paweł Wontorski. "Automatic train operation – requirements analysis." WUT Journal of Transportation Engineering 121 (June 1, 2018): 161–70. http://dx.doi.org/10.5604/01.3001.0014.4576.
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This article discusses the analysis of the process of automatic train operation. The scope of the analyzed process is not narrowed to the train itself. It covers the tasks carried out at the various operational levels of the system responsible for operating the railway traffic. The authors present the tasks in the field of railway traffic management and railway traffic control and train operation, carried respectively by the dispatcher, signalman and the train driver, which can be performed automatically, i.e. without human intervention.
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Knyazhskiy, A. Y., and A. P. Plyasovskikh. "Increase of runway capacity using the Departure Manager." Journal of «Almaz – Antey» Air and Space Defence Corporation, no. 3 (September 30, 2019): 78–82. http://dx.doi.org/10.38013/2542-0542-2019-3-78-82.
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The study proposes the operating principle of the electronic Departure Manager (DMAN). The principle forms recommendations to the dispatcher on streamlining the queue of delayed aircraft, which minimizes the runway occupancy time. The requirements for the manager and the possibility of its integration into the air traffic control system are determined. The simulation results showed the feasibility of introducing an electronic manager in the busiest airports and the possibility of increasing the capacity of the runway by more than 6 %
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Saitov, Aziz, Janibek Kurbanov, Zohid Toshboyev, and Sunnatillo Boltayev. "Improvement of control devices for road sections of railway automation and telemechanics." E3S Web of Conferences 264 (2021): 05031. http://dx.doi.org/10.1051/e3sconf/202126405031.
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In this scientific article, control sensors and control devices have been improved based on the method of counting arrows of the rolling stock of railway transport. The microprocessor-controlled control unit and control system have been simplified to manage traffic between two stations, and a self-monitoring, reliable and risky scheme has been developed. Wiring diagrams of existing transport relays have been updated for uninterruptible power supplies, microprocessor devices, and sensors. An automated schematic diagram with a microprocessor for signaling a collision of a railway with wagons has been created, and the order in which the speed of train movement approaches the crossing has been maintained. The complex functional control of rolling stock was improved based on the method of counting bullets, electronic archiving of the movement of orders of the train attendant and dispatcher, as well as the operation of devices for monitoring the technical condition of the station.
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Kozel, Tomas, and Milos Stary. "Adaptive stochastic management of the storage function for a large open reservoir using an artificial intelligence method." Journal of Hydrology and Hydromechanics 67, no. 4 (December 1, 2019): 314–21. http://dx.doi.org/10.2478/johh-2019-0021.
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Abstract The design and evaluation of algorithms for adaptive stochastic control of reservoir function of the water reservoir using artificial intelligence methods (learning fuzzy model and neural networks) are described in this article. This procedure was tested on an artificial reservoir. Reservoir parameters have been designed to cause critical disturbances during the control process, and therefore the influences of control algorithms can be demonstrated in the course of controlled outflow of water from the reservoir. The results of the stochastic adaptive models were compared. Further, stochastic model results were compared with a resultant course of management obtained using the method of classical optimisation (differential evolution), which used stochastic forecast data from real series (100% forecast). Finally, the results of the dispatcher graph and adaptive stochastic control were compared. Achieved results of adaptive stochastic management provide inspiration for continuing research in the field.
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Qin, Li Jun, and Xiao Teng Wu. "Research on Intelligent Auxiliary Decision-Making System for Regional Power Grid Faults." Advanced Materials Research 986-987 (July 2014): 1254–57. http://dx.doi.org/10.4028/www.scientific.net/amr.986-987.1254.
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. a secure and stable operation of power grid will provide critical assurance for sustainable development of society and economy. Through power grid dispatching auxiliary decision-making system, key information could be obtained from various information sources of the control center such as energy management system, security and stability control system and safety production information system. In case that accident occurs, this intelligent auxiliary decision-making system will provide full assistance to dispatcher with dealing with accidents by starting failure diagnosis function and producing project for coping with accidents. Accelerate transformation of accident handling style from empirical style to analytical and intelligent handling style to improve technical level of sensing of power grid operation status, risks assessment, failure diagnosis and dispatching.
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Dimitrova, E., and V. Dimitrov. "Realization of a Simulation Model of SCADA – a System for Monitoring and Control of Sofia Metropolitan." Information Technologies and Control 11, no. 4 (December 1, 2013): 25–33. http://dx.doi.org/10.1515/itc-2015-0003.
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Abstract In this paper, an imitation model of SCADA systems DISIM-V and DISIM-E, implemented in the Central Dispatcher Post (CDP) of the Sofia Metropolitan, is elaborated and described. These contemporary, modern and efficient SCADA systems are in operation in the subway and cover all technological processes for monitoring and control of the train traffic and power supply. Its extensive study is not possible due to the special mode and allowance. Thus a simulator, based on a synthesized imitation model has been also elaborated. The presence of laboratory models of these SCADA systems in Todor Kableshkov University of Transport is extremely useful in the learning process and enables the trainees to penetrate deeply into the core of modern SCADA technology. This simulation model is used by students and personnel for training and increasing the qualification of the operational specialists in the metropolitan, electricity distribution companies and the railway infrastructure.
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Demjen, C., D. Szendy, P. Kadar, and P. Meszaros. "An integrated dispatcher training simulator for use in a regional electricity distribution centre." Computing & Control Engineering Journal 5, no. 2 (April 1, 1994): 66–70. http://dx.doi.org/10.1049/cce:19940206.
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Qiangqiang, Sun, Qiu Huijun, and Cai Meng. "Transmitting Systems Dynamics in SCADA using Uneven Sampling/ Cubic Spline Interpolation based Data Compression." Open Electrical & Electronic Engineering Journal 8, no. 1 (December 31, 2014): 544–51. http://dx.doi.org/10.2174/1874129001408010544.
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Grasping power system dynamic information is helpful for dispatcher in the control center to take correct control action in time under emergency condition. Traditionally, Supervisory Control and Data Acquisition (SCADA) cannot transmit power system dynamics information since it updates system information once every several seconds. Based on the development of substation automation system, a data compression based approach is proposed in this paper to transmit power system dynamics information in existing SCADA. An uneven sampling is utilized to extract the feature points that determine the profile of system dynamics. Thereafter, these feature points contain dynamic information is transmitted from Remote Terminal Units to the control center. The system dynamics can thus be reconstructed with cubic spline interpolation. Numerical simulation on a 36 nodes system suggests that the system dynamics could be transmitted with high fidelity in existing SCADA using the proposed approach. Moreover, the proposed approach can be implemented in SCADA with limited software update.
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Bykova, V. S., L. A. Martynova, A. I. Mashoshin, and I. V. Pashkevich. "A Dispatcher for a Multi-Agent Control System of an Autonomous Underwater Vehicle: Structure, Algorithms, and Simulation Results." Gyroscopy and Navigation 11, no. 4 (October 2020): 341–49. http://dx.doi.org/10.1134/s2075108720040033.
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Ignac-Nowicka, Jolanta. "Visual Monitoring as a Tool in Industrial Security Engineering. Case Study." Multidisciplinary Aspects of Production Engineering 4, no. 1 (September 1, 2021): 107–19. http://dx.doi.org/10.2478/mape-2021-0010.
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Abstract The article presents the use of video monitoring in a production company on the example of municipal thermal power plant. After analyzing the hazards and work inconvenience occurring in the analyzed enterprise, video surveillance zones have been designated with the division into the indoor and outdoor monitoring system. Video surveillance is provided for production, auxiliary and delivery processes. Moreover, video monitoring performs a control function over the occupation health in workstations at risk of explosion or fire. In addition, observation points have been set up in the visual monitoring system, among which the internal ones are served by the dispatcher responsible for the production process, while the external are operated by security guards of the facility.
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Vasenko, V. "SYSTEM OF CONTROL OF OPERATING MODES OF ELECTRIC TRACTION NETWORKS ON THE BASIS OF FUZZY DESCRIPTION OF THEIR CONDITION." Municipal economy of cities 3, no. 163 (June 29, 2021): 117–25. http://dx.doi.org/10.33042/2522-1809-2021-3-163-117-125.
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Given the need to save energy and reduce the cost of passenger transport on urban electric transport, the greatest effect (from 5 to 15%) is achieved through the introduction of comprehensive information technologies based on rational modes of traction of electric rolling stock and traction and external power supply. The criterion for assessing the modes of operation of power supply systems of urban electric transport is the energy consumption of traction substations, which reflects most of the influencing factors, including the inseparable relationship of traction and external power supply systems. An approach to the implementation of energy-saving technologies of traction power supply of urban electric transport is proposed, which uses fuzzy models and methods of representation for analysis and selection of controls. It is proposed to implement the control of the power supply system operation modes and the selection of modes on the basis of a vague description of their states. When forming the rules, the following parameters are set: deviation of the daily number of transported passengers on the i-th interstation zone of the two-track section, for the characterization of which the values of fuzzy values "lag (strong, weak, absent)" and "advance (absent, weak, strong)" deviation of daily active energy losses for the substation zone and with the values "strong, absent, weak"; the difference between the daily energy consumption of the i-th substation zone, for the actual mode of operation of the power supply system and the reference mode of uniform loading of the power supply system. When constructing a control model in the form of fuzzy rules, each fuzzy characteristic is approximated by N fuzzy quantities with triangular membership functions. For the fuzzy characteristic the minimum and maximum values of an interval in which there are its admissible values are set. Approximate quantities have a triangular degree of belonging: the vertex lies in the center, it corresponds to the degree of belonging 1, and the other two vertices - on the sides of it with degrees of belonging 0. The fuzzy conclusion is based on the rule of fuzzy Mamdani implication. The constructed base of fuzzy rules, which replaces the model of modes of the power supply system, can be used as a guide to the energy dispatcher to select control for the next time period, taking into account the conditions of uncertainty. The principles of formation of algorithms and filling of databases and knowledge of expert systems are developed and problems of maintenance of modes of energy saving in systems of traction power supply of city electric transport are solved. The proposed algorithms for creating databases of expert systems can be implemented after the modernization of power supply control systems based on new integrated systems. Expert systems must be included in the software of the automated workplace of the energy dispatcher. Their inclusion is planned after introduction of new microprocessor systems of telemechanics of regional control points.
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Jamshidifar, Ali Akbar, and Dragan Jovcic. "3-Level cascaded voltage source converters controller with dispatcher droop feedback for direct current transmission grids." IET Generation, Transmission & Distribution 9, no. 6 (April 20, 2015): 571–79. http://dx.doi.org/10.1049/iet-gtd.2014.0348.
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Aufa, Al Anamila Nur, and Teguh Yuwono. "OPTIMALISASI HMI SCADA UNTUK MONITORING DAN KONTROL REPEATER RADIO KOMUNIKASI MENGGUNAKAN MODEM GPRS INTEK J65i-X." Gema Teknologi 18, no. 1 (October 1, 2014): 27. http://dx.doi.org/10.14710/gt.v18i1.8812.
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Al Anamila Nur Aufa, Teguh Yuwono, in paper SCADA HMI optimization for monitoring and control repeater using radio communication modem GPRS INTEK J65i–X explain that radio communications at PT PLN ( Persero ) APD Central Java and Yogyakarta is still a major communication medium for coordinating the work , both maintenance and handling of interference between units . Repeaters in this case an important role in the communication process between APD dispatcher JTY with Area - Area and officers in the field because of the presence of the communication range of the repeater spacing becomes wider . In operation repeaters can be susceptible to interference that can result in radio communications in the areas covered by the repeater to be disrupted so that the communication between the dispatcher APD JTY with Area - Area and field workers to be blocked. Handling repeater for this disorder is not maximized due to the lack of real time monitoring of the state of the repeater , so that when the repeater impaired in the device or on the supply , the clerk did not know in person and just waiting for a report from the repeater keeper at any time at the shelter is not a repeater . There needs to be a device that can monitor the state of the repeater , which if detected interference at the source , supply and radio , PPE JTY officer may direct monitoring , so that it can assist in the handling and analysis of causes of hearing disorders without having to come to the site . GPRS Modem Utilization Intek J65i - X allows retrieval status of the repeater equipment where it can not be done at this time . With facilities tapped digital inputs and digital outputs on the modem , any condition of equipments such as radio signal repeater RX , TX radio signal , battery , charger and 220V supply state of the supply voltage can be detected . From changes in the supply voltage available , can be detected by a GPRS modem Intek J65i - X so that when there is an interruption in the HMI SCADA can termonitoring in real time . With the monitoring and control of a radio repeater communications , personnel no longer need to go to the location (site ) only to find the cause of the disturbance . Interference analysis can also be performed before treatment is held further disruption . Reset control radio can also be done quickly if the radio have to hang in its operation , so that the future will be able to improve the performance of SCADA systems PT PLN ( Persero ) APD Central Java and DI Yogyakarta. Keywords : repeater , modem GPRS Intek J65i - X , auxiliary relays , monitoring and control , HMI SCADA
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Tomin, N. V. "The Concept of Constructing an Artificial Dispatcher Intelligent System Based on Deep Reinforcement Learning for the Automatic Control System of Electric Networks." Journal of Computer and Systems Sciences International 59, no. 6 (November 2020): 939–56. http://dx.doi.org/10.1134/s1064230720050111.
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Ibhaze, Augustus E., Ignatius K. Okakwu, Ayobami T. Akinrelere, and Agbotiname L. Imoize. "An Intelligent Dispatch System Operating in a Partially Closed Environment." Network and Communication Technologies 4, no. 1 (June 12, 2019): 26. http://dx.doi.org/10.5539/nct.v4n1p26.
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Taxicabs are very important in our daily lives and are reputed to be one of the mostly used forms of transportation. The cab dispatch system was first created to help passengers get through to taxi drivers and make it easier to book reservations. The evolution of cab dispatch system has moved from the ordinary callboxes to computer-aided dispatch system. These solutions were created to help organizations that own fleet of taxis manage and control their operations. Campuses and other partially closed environments also require these solutions but due to their high cost of implementation, they find it quite difficult to deploy and execute. In this paper, a smart dispatch system (SDS) is proposed. The system comprises of software and hardware units. The database and the android application make up the software unit while the microcontroller, the GSM module, and an android device constitute the hardware unit. The microcontroller intelligently reads and makes decisions based on the information received from the android device. The microcontroller also retrieves drivers’ details from a database where all the information about the vehicles and drivers are stored. The GSM module acts as the intermediary between the android device and the microcontroller, and enhances the communication between the microcontroller and other devices. The system makes use of a microcontroller that selects a driver and dispatches it based on the capacity of the vehicle corresponding to the number of passengers in need. Consequently, an android application is built to be used by the clients making the request process much easier. The proposed system reduces human operator intervention, gives the passengers the estimated time for the dispatched cab to arrive at their bus stops thereby satisfying the clients in terms of cost efficiency and improved quality of service.
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López, Joaquín, Pablo Sánchez-Vilariño, Rafael Sanz, and Enrique Paz. "Implementing Autonomous Driving Behaviors Using a Message Driven Petri Net Framework." Sensors 20, no. 2 (January 13, 2020): 449. http://dx.doi.org/10.3390/s20020449.
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Most autonomous car control frameworks are based on a middleware layer with several independent modules that are connected by an inter-process communication mechanism. These modules implement basic actions and report events about their state by subscribing and publishing messages. Here, we propose an executive module that coordinates the activity of these modules. This executive module uses hierarchical interpreted binary Petri nets (PNs) to define the behavior expected from the car in different scenarios according to the traffic rules. The module commands actions by sending messages to other modules and evolves its internal state according to the events (messages) received. A programming environment named RoboGraph (RG) is introduced with this architecture. RG includes a graphical interface that allows the edition, execution, tracing, and maintenance of the PNs. For the execution, a dispatcher loads these PNs and executes the different behaviors. The RG monitor that shows the state of all the running nets has proven to be very useful for debugging and tracing purposes. The whole system has been applied to an autonomous car designed for elderly or disabled people.
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Kulakov, G. T., and K. I. Artsiomenka. "SYSTEM ANALYSIS OF SCIENTIFIC-AND-TECHNICAL INFORMATION IN AUTOMATIC CONTROL SYSTEM OF POWER UNITS WATTAGE." ENERGETIKA. Proceedings of CIS higher education institutions and power engineering associations 60, no. 5 (September 28, 2017): 446–58. http://dx.doi.org/10.21122/1029-7448-2017-60-5-446-458.
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The production, transformation, transmission, distribution and consumption of electricity is one continuous process. The change of the load, i.e. the level of energy consumption, should cause a corresponding change in the level of generated energy. It means that the power system should be a balance of produced and consumed energy, taking into account technological cost of conversion, transmission and distribution. Otherwise, electric power quality indicators will be violated. For example, at infringement of balance of active power the frequency in the grid will have a value different from 50 Hz. One of the automatic devices on the lowest rung in the hierarchy of automatic dispatcher control system of frequency and power interchange is the system of automatic control of power units (SACPU). It is a comprehensive and complex device, which consists of several connected together simpler systems, governing all thermal power devices of a power unit. SACPU ought to regulate the active power of the unit and participate in primary frequency regulation in the network with a given accuracy and sensitivity; also, it ought to be adequately fast. At the same time, this device should be simple from the point of view of technical implementation, easy to use, allow one to maintain a high level of efficiency, reliability, durability and environmental performance of the units. To satisfy all these requirements (often conflicting) simultaneously, SACPU should have a certain structure, which depends on the composition and characteristics of heat power equipment of the power unit and on operating modes. The analysis of known SACPU have demonstrated that they are unable to fully provide the requirements of the modern standards for quality control of frequency and power, i.e. the SACPU models are still in need of structural and parametric optimization on the basis of the proximate methods developed at the Belarusian National Technical University.
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Mahmassani, Hani S., Yongjin Kim, and Patrick Jaillet. "Local Optimization Approaches to Solve Dynamic Commercial Fleet Management Problems." Transportation Research Record: Journal of the Transportation Research Board 1733, no. 1 (January 2000): 71–79. http://dx.doi.org/10.3141/1733-10.
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Strategies are presented that a dispatcher may use to take advantage of real-time information to manage a fleet of trucks to provide truckload pickup-and-delivery service under time windows for service and computing time constraints. These strategies are hybrid in that they combine very efficient dynamic local heuristic rules for quick initial assignment, with formal optimization-based procedures for subsequent load reassignment decisions within the time requirements of the dynamic problem. Simulation experiments were performed to test these strategies under alternative specifications and parameter values. In the first stage, the acceptance decision and initial schedule of trucks were determined so as to respond rapidly to incoming customer requests for service. Then, some time is allowed to improve the schedule of trucks by swapping the assigned loads using local optimization at the reassignment stage. Two strategies are described to control the computation time of the reassignment optimization problem by controlling the problem size. The simulation results confirm the significant potential for reassignment strategies under real-time information to improve system performance and suggest that considerable improvement is attainable even under restricted problem formulations.
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Sadykov, M. F., D. A. Yaroslavsky, D. A. Ivanov, V. A. Tyurin, T. G. Galiyeva, and M. P. Goryachev. "Inclinometric method for determining the mechanical state of an overhead power transmission line." E3S Web of Conferences 124 (2019): 05022. http://dx.doi.org/10.1051/e3sconf/201912405022.
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Mechanical deformations when a wire is stretched causes its rotation around its axis, which allows obtaining additional information about the wire behavior in an overhead transmission line and considering it no longer as a group of sections from one span but as a whole interconnected section with redistribution of mechanical loads between spans. To determine the tensile strength of wire by its torsion, a method for determining the mechanical parameters of an overhead transmission line was developed. It is based on the inclinometric method and the theory of force calculation of steel ropes. This technique takes into account the torsion, the angle of inclination and the wire temperature. The technique is implemented in the system for monitoring the status of overhead power lines. It takes into account the torsion angle of the wire and helps to prevent emergencies on the overhead power line by determining the tensile strength of the wire, checking for defects in wires of the overhead power line and defects in the suspension armature. The monitoring system includes control devices, data collection and data processing center, a dispatcher software package. Control devices are installed directly on the wire/ground wire of an overhead power line and are used to measure the angle of rotation, the angle of inclination and the wire temperature. The data collection and data processing station processes them according to the developed methodology in specialized software. The system for monitoring the status of overhead power lines based on the inclinometric method helps to prevent emergencies and reduce the economic costs of maintaining and restoring overhead power lines.
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Lin, Wei-Shu, Chih-Hsien Wu, Jr-Jiun Lin, Kah-Meng Chong, Hui-Chih Wang, Chang-Ming Tsai, Yao-Zhen Wang, et al. "The relation of age and the effect of a comprehensive quality control program of dispatcher-assisted CPR guidelines implementation on survival from out-of-hospital cardiac arrest." Resuscitation 106 (September 2016): e72. http://dx.doi.org/10.1016/j.resuscitation.2016.07.175.
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Valiev, Shamil K., and Igor A. Dubrov. "Innovative simulators for automation and telemechanics systems." Innotrans, no. 1 (2020): 46–50. http://dx.doi.org/10.20291/2311-164x-2020-1-46-50.
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The article deals with the issues of training in educational institutions and enterprises of railway transport using simulators built on the basis of real actual equipment of railway automation and telemechanics, and virtual simulators that simulate the operation of real equipment by analog or digital modeling. Advantages and disadvantages of real and virtual simulators are considered. The directions for their further improvement are indicated. One of the directions is the development of innovative simulators that combine real equipment and its virtual environment in one laboratory layout. The first innovative simulator at the Department of “Automation, telemechanics and communication on railway transport” is the automated workplace of the train dispatcher. Further improvement of innovative simulators is the development and implementation in the laboratory of station systems of automation and telemechanics of the department of the set of remote fault assignment with an automated workplace of the teacher. The article describes the structural flowcharts of the remote fault assignment set and its main blocks. Innovative simulators also include a simulator of the train passing through the control section KTSM-02, which allows to simulate the operation of floor sensors in the same sequence as when passing a real train. The article describes a virtual simulator, which includes a laboratory model for the study of neutral electromagnetic relays in 3D. Advantages of integrating innovative simulators with virtual educational environment of the University are indicated.
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Tucci, H. N. P., and G. C. Oliveira Neto. "Analysis of application of Six Sigma in refuelling process in Brazilian airline." Aeronautical Journal 123, no. 1260 (February 2019): 265–82. http://dx.doi.org/10.1017/aer.2018.153.
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ABSTRACTAircraft refuelling is a major cause of flight delays because it is a slow process. Further, if it does not begin as soon as the aircraft is available for ground handlers, there is an increasing risk of it being terminated after the final passenger has boarded. Usually, the process only begins after information regarding the required quantity of fuel is passed through the flight dispatcher, and this information typically requires a certain time to reach the ground handlers. Therefore, it is intended to test a new scenario: to begin refuelling with a minimum level and, if necessary, fill up the remainder with the final fuel figures when received. The aim of this paper is to analyse the application of Six Sigma in this process through Student’st-test and statistical process control. The collected data in this case study include the amount of fuel supplied and flight delays (which are mainly caused by refuelling). The results demonstrate that the new process is favourable, and that the average length of flight delays is reduced from 14 to 6 min, which is an improvement of 57%. It is concluded that the application of Six Sigma in the aircraft refuelling process saves time and improves on-time performance levels, which is relevant to the scientific literature, thereby aiding in mitigating the risk of fines and penalties.
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Smith, Michael E., Randolph R. Resor, and Pradeep Patel. "Train Dispatching Effectiveness with Respect to Communications-Based Train Control: Quantification of the Relationship." Transportation Research Record: Journal of the Transportation Research Board 1584, no. 1 (January 1997): 22–30. http://dx.doi.org/10.3141/1584-04.
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This analysis presents a methodology for measuring the efficiency of train dispatching as a product of three variables: (a) the type of train control system (measured by latency, defined here as the interval between occurrence of a schedule deviation and initiation of corrective action); (b) the physical capacity of the route (track kilometers per route kilometers); and (c) train minutes per route kilometer (a measure of both capacity and dispatcher competence). A mathematical relationship among these three variables is postulated, and a log-log regression analysis is used to develop coefficients that relate each of the three independent variables to dispatching efficiency. To do this, actual train-movement data and minimum train running times for 28 U.S. Class I railroad line segments are used. Results of the regression analysis indicate a statistically valid relationship among latency, track capacity, traffic volume, and dispatching effectiveness. Dispatching effectiveness, calculated by placing track kilometers per route kilometer, train minutes per route kilometer, and latency at their mean values, was 71.3 percent (the mean latency was about 17 min). At a latency of 3.5 min, average effectiveness is 81.3 percent. Examples of the trade-off between latency and effectiveness and between track capacity and effectiveness also can be calculated. For the average line, when latency is progressively reduced from the current value of 15 min to 3.5 min, dispatching effectiveness increases from 71.3 to 81.3 percent. When track kilometers per route kilometer are increased from the average value of 1.3 to 2.0 (double-tracking the entire railroad, holding all other values constant) dispatching effectiveness can be increased from 71.3 to 89.5 percent—a larger increase than that realized from a reduction in latency, but at much higher cost. To quantify the dollar benefits of such an increase in dispatching effectiveness for U.S. railroads, further analyses were carried out. Based on a previous study of Burlington Northern operations, train delay costs ranged from $163/hr to $266/hr. To simplify calculations, a value of $200/hr is used. According to U.S. railroad statistics, there are about 21 million train hours of traffic each year. Benefits available from installing communications-based train control are calculated in terms of additional train minutes per route kilometer available with an increase in dispatching effectiveness based on this analysis. Based on this analysis, it should be possible to save (1 − 0.713/0.813) or 12.3 percent of total train hours. The benefit of this would be $200 × 0.123 × 21 × 10 or $520 million annually. The Association of American Railroads has estimated the cost of positive train control for the entire U.S. railway network to be between $843 million and $1.1 billion.
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FERNÁNDEZ, JOAQUÍN, PABLO CORTÉS, JOSÉ GUADIX, and JESÚS MUÑUZURI. "DYNAMIC FUZZY LOGIC ELEVATOR GROUP CONTROL SYSTEM FOR ENERGY OPTIMIZATION." International Journal of Information Technology & Decision Making 12, no. 03 (May 2013): 591–617. http://dx.doi.org/10.1142/s0219622013500223.
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High-rise buildings with a considerable number of elevators represent a major logistic problem concerning saving space and time due to economic reasons. For this reason, complex Elevator Group Control Systems are developed in order to manage the elevators properly. Furthermore, the subject of energy is acquiring more and more industrial relevance every day as far as sustainable development is concerned. In this paper, the first entirely dynamic Fuzzy Logic Elevator Group Control System to dispatch landing calls so as to minimize energy consumption, especially during interfloor traffic, is proposed. The fuzzy logic design described here constitutes not only an innovative solution that outperforms usual dispatchers but also an easy, cheap, feasible and reliable solution, which is possible to be implemented in real industry controllers.
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Abdullah, Nor Rul Hasma, Mahaletchumi A. P. Morgan, and Ismail Musirin. "Constrained Reactive Power Control (CRPC) Based Multi-Objective Optimization under Multi-Contingencies (N-m)." Applied Mechanics and Materials 785 (August 2015): 414–18. http://dx.doi.org/10.4028/www.scientific.net/amm.785.414.
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Optimal Reactive Power Dispatch (ORPD) is needed for reduces the power system losses and improves voltage profile, power system security and overall power system operation. In this paper, the ORPD problem solved using Constrained Reactive Power Control (CRPC) based Multi-Objective Evolutionary Programming (MOEP) optimization technique considering multi-contingencies (N-m). The proposed technique determines the optimum reactive power to be dispatched by the generators in order to improve voltage stability condition of a system. A computer program was written in MATLAB and the proposed technique was tested on the IEEE 30-bus RTS. Hence, the result was compared with Multi-Objective Artificial Immune System (MOAIS) to highlight it merits.
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Zhong, Lingshu, and Lin Guan. "Real-Time Dispatch of Coupled Transmission and Distribution Systems within a Distributed and Cooperative Framework." Energies 13, no. 20 (October 12, 2020): 5281. http://dx.doi.org/10.3390/en13205281.
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This paper presents a real-time dispatch strategy for coupled transmission and distribution systems within a distributed and cooperative control framework to maintain reliable and secure operation with minimum generation costs and maximum renewable energy consumption. The presented strategy transforms each distribution system into a dispatchable active source via an average-consensus-based active power control of renewable distributed energy resources (DERs) at the distribution level and then dispatches the active power reference of conventional generators as well as the distribution systems in a measurement-based way at a transmission level. The voltage fluctuation caused by the DER active power control is smoothened with a distributed voltage control method, which can also reduce the active power loss in the distribution systems. Compared to existing real-time dispatch strategies, the proposed strategy can eliminate security issues in the transmission system in a short time by regulating large amounts of DERs at a distribution level in a simple and easy controlled structure, in which the differences in the communication conditions and privacy requirements between the distribution and transmission systems are adequately considered.
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Zheng, Yi Peng, Zu Tao Zhang, and Hong Xu. "A Novel Intelligent Elevator Group Control Algorithm Based on Corridor Passenger Detection and Tracking." Applied Mechanics and Materials 336-338 (July 2013): 815–19. http://dx.doi.org/10.4028/www.scientific.net/amm.336-338.815.
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The conventional elevator group control system is based on the button as a response and where to dispatch an elevator car. There is one big problem that when system dispatches the elevator to that button responding floor, but no passenger there and causing a waste of time and energy. In this paper, we present a novel intelligent elevator group control algorithm based on corridor passenger detection and tracking. In the above proposed system, after the corridor passengers are detected using binocular-cameras, Unscented Kalman Filter (UKF) is introduced to improve robustness and accuracy of corridor passenger motion tracking. At same time, a novel intelligent elevator group control strategy based on corridor passenger detection and tracking is proposed to improve the performance and transport efficiency of the elevator. Compared with the traditional elevator group control system, the proposed system has potential advantages in minimizing passengers’ waiting time and saving electronic energy. The final experimental results show the validity of our method under simulation condition.
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Shehzad, Muhammad Faisal, Mainak Dan, Valerio Mariani, Seshadhri Srinivasan, Davide Liuzza, Carmine Mongiello, Roberto Saraceno, and Luigi Glielmo. "A Heuristic Algorithm for Combined Heat and Power System Operation Management." Energies 14, no. 6 (March 12, 2021): 1588. http://dx.doi.org/10.3390/en14061588.
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This paper presents a computationally efficient novel heuristic approach for solving the combined heat and power economic dispatch (CHP-ED) problem in residential buildings considering component interconnections. The proposed solution is meant as a substitute for the cutting-edge approaches, such as model predictive control, where the problem is a mixed-integer nonlinear program (MINLP), known to be computationally-intensive, and therefore requiring specialized hardware and sophisticated solvers, not suited for residential use. The proposed heuristic algorithm targets simple embedded hardware with limited computation and memory and, taking as inputs the hourly thermal and electrical demand estimated from daily load profiles, computes a dispatch of the energy vectors including the CHP. The main idea of the heuristic is to have a procedure that initially decomposes the three energy vectors’ requests: electrical, thermal, and hot water. Then, the latter are later combined and dispatched considering interconnection and operational constraints. The proposed algorithm is illustrated using series of simulations on a residential pilot with a nano-cogenerator unit and shows around 25–30% energy savings when compared with a meta-heuristic genetic algorithm approach.
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Rusanov, V. V., V. I. Perov, and M. A. Samoilov. "Automation of public catering enterprises using modern digital technologies: Arduino IDE, OPC Modbus and Master Scada programs." Proceedings of the Voronezh State University of Engineering Technologies 80, no. 2 (October 2, 2018): 38–44. http://dx.doi.org/10.20914/2310-1202-2018-2-38-44.
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In the article, the using of three computer programs was considered step-by-step. These programs are "Arduino IDE", "Modbus OPC Universal Master Server" and "Master Scada". They are using for creating projects of automation for public catering enterprises. There is an example of automation of the hot shop in this article, which demonstrates us the methods of engineering based on the modern digital technologies. If you want to learn how to create the projects using these programs, for the beginning, we recommend you to repeat our demonstration project. In the represented methods, we recommend using the integrated sensors for measuring options of technological processes of production dishes. Modern sensors of temperature, pressure, moving and humidity are adapting with microcontrollers very good. This fact allows to create compact, inexpensive devices for primary collection and processing of information. There was been showed the method of transferring of collected information to the computer of the supervisor on the example of created OPC-server. The supervisor can look for the processes, which are happening in the hot shop of the public catering establishment. The supervisor’s remote control is developed on the base of the «Master Scada» program. This is one of the most popular automation program. Creators of the «Master Scada» say that this program is widely used in such companies as «Gazprom» and «Rosatom». The wide possibilities of this program allow us in the three-dimensional graph to represent the objects of automation, to accelerate the executive and regulating mechanisms that are on the screen in front of the dispatcher. The practical example, which was demonstrated in this article, is limited by three mnemonic diagrams. First of them is the splash screen of the hot shop with the menu of the transiting to the mnemonic diagram of the controlling of the food-brewing boiler and the electrical frying cupboard. If operator switches over to mnemonic diagram of the food-brewing boiler, he sees the degree of filling boiler by the cooking liquor, the temperature of this liquor and time of the cooking. Using the control buttons operator can make changes to the program of cooking his dish. The program also looks for emergency modes, in particular, to prevent dry running..
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Kambayashi, Yasushi, Hideaki Yajima, Tadashi Shyoji, Ryotaro Oikawa, and Munehiro Takimoto. "Formation Control of Swarm Robots Using Mobile Agents." Vietnam Journal of Computer Science 06, no. 02 (May 2019): 193–222. http://dx.doi.org/10.1142/s2196888819500131.
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In this paper, we propose an algorithm for controlling a fleet of swarm robots that construct three-dimensional forms. The swarm robots coordinate with each other through network communication, and compose formations such as polyhedrons presented as spherical coordinates. Our control algorithm achieves communication through mobile software agents, which introduce control programs to robots that initially have no information about the formation. Mobile software agents are autonomous objects that can migrate from one robot to other robots through a communication network and can deliver control programs as they are needed. We have made our swarm robot system to mimic the behaviors of the leafcutter ants. A leafcutter ant is a typical social insect and uses pheromone for communication. In our robot control system, we have implemented ants and pheromones as mobile software agents. We call the mobile software agents that drive the mobile robots as ant agents, and call the other agents that provide communication as pheromone agents. The ant agents drive the swarm robots to locations identified by the pheromone agents. Each ant agent has only partial information. There is no need for either a central control or an agent that has the entire design of the formation. In order to diffuse the partial information among the neighboring robots, each ant agent generates pheromone agents and dispatches them to the surrounding robots. Dispatched pheromone agent looks for a proper ant agent to influence towards a desired relative location. It is the ant agent that actually drives the robot by following the guidance of the pheromone agent, and the collective actions of ant agents and pheromone agents achieve the composition of the objective formation. We have implemented a simulator based on our algorithm and conducted numerical experiments. The results demonstrate that our mobile robot control system is feasible and efficient in practice in practical situations.
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Delgoshaei, Parhum, and James D. Freihaut. "Development of a Control Platform for a Building-Scale Hybrid Solar PV-Natural Gas Microgrid." Energies 12, no. 21 (November 4, 2019): 4202. http://dx.doi.org/10.3390/en12214202.
Full textAbstract:
Building-scale microgrids are a type of behind-the-meter microgrids where the building operator has control of the distributed energy resources, including, in this case, a natural gas-fired microturbine in addition to solar PV and battery energy storage systems. There is a growing trend in deploying behind-the-meter microgrids due to their benefits including the resiliency of serving critical loads, especially in regions with abundant natural gas. In order to ensure distributed energy resources are dispatched optimally for the desired mode of operation, a hierarchical control platform including a centralized controller was developed and installed. The platform includes communication and control infrastructure that interface with controllers for distributed energy resources and the building automation system of a recently built energy efficient commercial building. Based on desirable outcomes under different grid and building conditions, operational modes were defined for the microgrid controller. The controller is programmed to map each mode to respective operational modes for distributed energy resources controllers. Experimental data for test runs corresponding to two operational modes confirm the communication and control infrastructure can execute hierarchical control commands. Finally, dispatch optimization for a year-long simulation of system operation is presented and the benefits of the hybrid solar PV-natural gas setup are evaluated.