Дисертації з теми "Data Acquisition Device"
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Byun, Albert Joon-Soo. "Analog signal conditioning design for a wireless data acquisition device." Connect to this title online, 2005. http://hdl.handle.net/1811/368.
Повний текст джерелаTitle from first page of PDF file. Document formattted into pages: contains v, 28 p.; also includes graphics. Includes bibliographical references (p. 21-22). Available online via Ohio State University's Knowledge Bank.
Davey, Neil P., and n/a. "Acquisition and Analysis of Aquatic Stroke Data From an Accelerometer Based System." Griffith University. School of Microelectronic Engineering, 2004. http://www4.gu.edu.au:8080/adt-root/public/adt-QGU20061003.153043.
Повний текст джерелаRen, Xiaoran. "A Wearable Fitness Device System for Multiple Biological Information Data Acquisition for Physically Active Persons." University of Cincinnati / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1505209479365329.
Повний текст джерелаPellegrino, Gregory S. "Design of a Low-Cost Data Acquisition System for Rotordynamic Data Collection." DigitalCommons@CalPoly, 2019. https://digitalcommons.calpoly.edu/theses/1978.
Повний текст джерелаHansen, Sinclair D. "An intrusion detection system for supervisory control and data acquisition systems." Thesis, Queensland University of Technology, 2008. https://eprints.qut.edu.au/16636/1/Sinclair_Hansen_Thesis.pdf.
Повний текст джерелаHansen, Sinclair D. "An intrusion detection system for supervisory control and data acquisition systems." Queensland University of Technology, 2008. http://eprints.qut.edu.au/16636/.
Повний текст джерелаPradhan, Ninad. "Software development for mechatronics systems simulation of multiple UAV navigation and device driver interface for the Q4 data acquisition card /." Connect to this title online, 2007. http://etd.lib.clemson.edu/documents/1181250594/.
Повний текст джерелаCintura, Manuel. "An Embedded Data Logger for In-Vehicle Testing." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2021. http://amslaurea.unibo.it/23841/.
Повний текст джерелаMarshall, Graham Dean. "Sequential-injection analysis." Thesis, Pretoria : [s.n.], 1994. http://upetd.up.ac.za/thesis/available/etd-03252010-140204/.
Повний текст джерелаLuiro, V. (Vesa). "Acquisition and analysis of performance data for mobile devices." Doctoral thesis, University of Oulu, 2003. http://urn.fi/urn:isbn:9514271319.
Повний текст джерелаMastrippolito, Luigi. "NETWORKED DATA ACQUISITION DEVICES AS APPLIED TO AUTOMOTIVE TESTING." International Foundation for Telemetering, 2003. http://hdl.handle.net/10150/606740.
Повний текст джерелаThe US Army Aberdeen Test Center (ATC) is acquiring, transferring, and databasing data during all phases of automotive testing using networked data acquisition devices. The devices are small ruggedized computer-based systems programmed with specific data acquisition tasks and then networked together with other devices in order to share information within a test item or vehicle. One of the devices is also networked to a ground-station for monitor, control and data transfer of any of the devices on the net. Application of these devices has varied from single vehicle tests in a single geographical location up to a 100-vehicle nationwide test. Each device has a primary task such as acquiring data from vehicular data busses (MIL-STD-1553, SAE J1708 bus, SAE J1939 bus, RS-422 serial bus, etc.), GPS (time and position), analog sensors and video with audio. Each device has programmable options, maintained in a configuration file, that define the specific recording methods, real-time algorithms to be performed, data rates, and triggering parameters. The programmability of the system and bi-directional communications allow the configuration file to be modified remotely after the system is fielded. The primary data storage media of each device is onboard solid-state flash disk; therefore, a continuous communication link is not critical to data gathering. Data are gathered, quality checked and loaded into a database for analysis. The configuration file, as an integral part of the database, ensures configuration identity and management. A web based graphical user interface provides preprogrammed query options for viewing, summarizing, graphing, and consolidating data. The database can also be queried for more detailed analyses. The architecture for this network approach to field data acquisition was under the Aberdeen Test Center program Versatile Information System Integrated On-Line (VISION). This paper will describe how the merging of data acquisition systems to network communications and information management tools provides a powerful resource for system engineers, analysts, evaluators and acquisition personnel.
Cevikbas, Orcun. "Data Acquisition And Processing Interface Development For 3d Laser Rangefinder." Master's thesis, METU, 2006. http://etd.lib.metu.edu.tr/upload/12607514/index.pdf.
Повний текст джерелаEpps, Brian W. "A comparison of cursor control devices on target acquisition, text editing, and graphics tasks." Diss., Virginia Polytechnic Institute and State University, 1986. http://hdl.handle.net/10919/50013.
Повний текст джерелаPh. D.
Balieiro, Ricardo Luis. "Desenvolvimento de uma ferramenta computacional para aquisição via internet de dados de dispositivo de campo em ambiente Fieldbus." Universidade de São Paulo, 2008. http://www.teses.usp.br/teses/disponiveis/18/18149/tde-19012011-132802/.
Повний текст джерелаThe increasing usage of smart field devices in the industrial automation area has assured efficiency and quality of production. Thanks to this expansion, a large number of devices can be interconnected through distant geographical areas. This scenario created the need of computational systems that would make the information from the plant floor accessible to any computer in the local industrial area or any other earth wide location. The Internet has created a new possibility of remote managing and monitoring of smart devices. This work proposes an algorithm to monitor, via Internet, the events generated by smart devices installed in industrial plants. The continuous monitoring makes it possible to analyze the performance of the devices, detect problems and make decisions to ensure that an entire control loop does not come to an unexpected halt.
Cheung, Anthony Hing-lam. "Design and implementation of an Arabic optical character recognition system." Thesis, Queensland University of Technology, 1998. https://eprints.qut.edu.au/36073/1/36073_Cheung_1998.pdf.
Повний текст джерелаLin, Chun-Han, and 林君翰. "A general power meter reading data acquisition device using Arduino with OCR functionality." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/83234361416667024853.
Повний текст джерела國立中央大學
土木工程學系
104
The purpose of this research is to design an Arduino-based device that can receive a power meter's usage data for further analysis. By using the Arduino Uno Rev3 development board and the JPEG camera, users can add customized features such as the ones for this research and integrate them into a single device. One significant feature of our device is that it can recognize regular text or numbers that are displayed on any power meter because of reusing the OCR (optical character reader) library. Currently, similar devices on the market are more expensive and do not allow users to develop new functions. Hence, if users want to add more functions, they need to pay for the extension components or plugins, which undoubtedly increase the overall cost. Various font types and characters, which were displayed on power meters and captured by the JPEG camera, were used to test the correctness of our device functionality. The results showed that it can continuously send actual meter readings to a computer for further analysis.
Chou, Ming-Hsiao, and 周明孝. "Design and Application of Real-Time Data Acquisition and Analysis System Using Device Network." Thesis, 2001. http://ndltd.ncl.edu.tw/handle/92577414823826663951.
Повний текст джерела國立交通大學
機械工程系
89
The integration of the distributed control system and the network interface is the new trend of the next-generation industrial control system. Due to the compatibility between products developed by different vendors, the products based on open protocols have replaced proprietary design and become very popular in the market. The object of this thesis is to design a distributed real-time data acquisition and analysis system, which is based on CAN protocol and conformed to DeviceNet protocol. The central unit of this system is a PC, whose operating system is Windows NT. Under Windows NT operating environment, the system utilizes a real-time multitasking program and a DeviceNet scanner card to build a real-time data acquisition system based on DeviceNet protocol.
Pranjoto, Hartono. "Digital/analog data acquisition and signal processing for the Superconductive Quantum Interference Device (SQUID)." 1987. http://catalog.hathitrust.org/api/volumes/oclc/15730050.html.
Повний текст джерелаTypescript. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 5/1-5/3).
LI, QI-HAN, and 李啟漢. "Studies on developing a single-chip device for environmental data acquisition and control, and its application in horticulture." Thesis, 1991. http://ndltd.ncl.edu.tw/handle/19757712529456708385.
Повний текст джерелаHong-LinLin and 林弘霖. "Electrical Characteristics Data Acquisition of Microelectronic Devices and Fiber Optics Alignment System." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/3p7bhs.
Повний текст джерелаYeh, Kung-Tsan, and 葉公贊. "Comparison of Power Saving Schemes for Wireless Acquisition Data Devices in cdma2000 Systems." Thesis, 2002. http://ndltd.ncl.edu.tw/handle/59067588622001729835.
Повний текст джерела國立臺灣科技大學
電子工程系
90
Abstract Next-generation wireless networks are to accommodate more users accessing a wide array of information with portable battery-powered devices. Thus, minimizing the average power consumption at individual node becomes especially important. This thesis considers three uplink channel setup schemes to reduce power consumption of individual node for wireless sensor network applications in cdma2000. The backlog counter threshold scheme transits to active state when the number of packets in transmission queue exceeds the counter threshold value. The vacation timer threshold scheme transits to active state when vacation timer expires. The counter-timer hybrid scheme transits to active state either when the number of packets in queue exceeds the threshold value or when time-out occurs. All the three set-up schemes are under consideration of release scheme used to go back to inactive state when release timer expires. The objective of our study is to evaluate the performances of the three power saving schemes using simple two-state (active state and inactive state) Markov chain model with accurately improved non-exponential distributed transition time in wireless data device for different needs of applications. Under these models, we take insights of threshold selection for reducing power consumption while satisfying the QoS requirements in terms of packet blocking probability and the mean packet delay in system. Furthermore, the performance evaluation of the tradeoffs among channel connection rate, mean packet delay and packet blocking probability, and the tradeoffs between resource (bandwidth) cost and channel connection rate are revealed.
Liu, Po-Chun, and 劉柏均. "Silicon-based Devices for the Study of Molecular Conductance:Issues on Lithographic Fabrication and Data Acquisition." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/51563912599789953014.
Повний текст джерела國立臺灣大學
化學研究所
101
The understanding of the electron-transporting mechanism through the MMM junction (metal-molecule-metal) is important for the improvement of electric properties via molecular design. The I-V curves acquired under low temperature can be transformed into IETS spectra (inelastic tunneling spectroscopy) which are originated from the absorption of electron energy and thus from the excitation of the corresponding vibrational modes. Such an inelastic process is accompanied by an increase of differential conductance (dI/dV) or the appearance of peaks in the derivative of differential conductance (d2I/dV2). The latter offers information equivalent to those of IR or Raman spectra. To prepare devices suitable for the measurements under low temperature, great efforts in photolithography and e-beam lithography have been involved. Lock-in amplification and AC modulation are devised to acquire IETS spectra of our target compounds at 4 K. According to the results of, [Ni3(dpa)4(NCS)2] (dpa‒: dipyridylamido anion), a unique class of molecular wires with features of metal-metal chains distinct from carbon-based p-conjugated molecules, the S/N ratio of differential conductance extracted by lock-in technique is better than the result of numerical derivative from I-V curve. Nevertheless, the resolution of signal still has to be improved in the future, but the comparison with the results extracted by lock-in technique with different frequencies shows the quality of signal at specific frequency is superior to others. Therefore, we rudimentarily predict that the signal at specific frequency originates from the vibrational modes of molecule.
(11016081), Yang Wang. "DESIGN AND IMPLEMENTATIONS OF OPEN-SOURCE AG IOT DEVICES FOR FARM MACHINERY DATA ACQUISITION AND INTEGRATED ANALYTICS." Thesis, 2021.
Знайти повний текст джерелаresultant clusters between on-road and in-field data samples as well as normal and anomalous activities. The second problem concentrates on combine unloading event detections using GPS tracks of multiple combines in 16 harvest sessions. The identified events from a novel algorithm that couples Interacting Multiple Models filtering and composite rules were utilized to estimate the total yield for each session. The estimated yields had an overall accuracy of over 90% when comparing to the actual weight ticket records. Lastly, two instantaneous metrics, instantaneous area capacity and swath utilization, were proposed and estimated using GPS tracks of multiple combines in 7 different fields during various harvest years. A novel algorithm was created for estimating instantaneous actual harvested area and swath utilization. This enabled exact computations of instantaneous metrics as oppose to conventional rough estimates of area capacity. Harvest performances were evaluated both temporally and geospatially by machines and years. It was discovered that three contributing factors that lead to high area capacity were wide header attachments, high harvesting speed, and uniform harvesting patterns. Moreover, it was found that the benefit of a wider header might diminish if the harvesting speed was low.
Njova, Dion. "Evaluating of DNP3 protocol over serial eastern operating unit substations and improving SCADA performance." Diss., 2021. http://hdl.handle.net/10500/27683.
Повний текст джерелаSupervisory Control and Data Acquisition (SCADA) is a critical part of monitoring and controlling of the electrical substation. The aim of this dissertation is to investigate the performance of the Distributed Network Protocol Version 3.3 (DNP3) protocol and to compare its performance to that of International Electro-technical Commission (IEC) 61850 protocol in an electrical substation communication network environment. Building an electrical substation control room and installing the network equipment was going to be expensive and take a lot of time. The better option was to build a model of the electrical substation communication network and run simulations. Riverbend modeller academic edition known as Optimized Network Engineering Tool (OPNET) was chosen as a software package to model substation communication network, DNP3 protocol and IEC 61850 Protocol stack. Modelling the IEC 61850 protocol stack on OPNET involved building the used Open System Interconnection (OSI) layers of the IEC 61850 protocol stack onto the application definitions of OPNET. The Transmission Control Protocol/Internet Protocol (TCP/IP) configuration settings of DNP3 protocol were also modelled on the OPNET application definitions. The aim is to compare the two protocols and determine which protocol is the best performing one in terms of throughput, data delay and latency. The substation communication model consists of 10 ethernet nodes which simulate protection Intelligent Electronic Devices (IEDs), 13 ethernet switches, a server which simulates the substation Remote Terminal Unit (RTU) and the DNP3 Protocol over TCP/IP simulated on the model. DNP3 is a protocol that can be used in a power utility computer network to provide communication service for the grid components. DNP3 protocol is currently used at Eskom as the communication protocol because it is widely used by equipment vendors in the energy sector. DNP3 protocol will be modelled before being compared to the new recent robust protocol IEC 61850 in the same model and determine which protocol is the best for Eskom on the network of the power grid. The network load and packet delay parameters were sampled when 10%, 50%, 90% and 100% of devices are online. The IEC 61850 protocol model has three scenarios and they are normal operation of a Substation, maintenance in a Substation and Buszone operation at a Substation. In these scenarios packet end to end delay of Generic Object Oriented Substation Event (GOOSE), vi © University of South Africa 2020 Generic Substation Status Event (GSSE), Sampled Values (SV) and Manufacturing Messaging Specification (MMS) messages are monitored. The throughput from the IED under maintenance and the throughput at the Substation RTU end is monitored in the model. Analysis of the results of the DNP3 protocol simulation showed that with an increase in number of nodes there was an increase in packet delay as well as the network load. The load on the network should be taken into consideration when designing a substation communication network that requires a quick response such as a smart gird. GOOSE, GSSE, SV results on the IEC 61850 model met all the requirements of the IEC 61850 standard and the MMS did not meet all the requirements of the IEC standard. The design of the substation communication network using IEC 61850 will assist when trying to predict the behavior of the network with regards to this specific protocol during maintenance and when there are faults in the communication network or IED’s. After the simulation of the DNP3 protocol and the IEC 61850 the throughput of DNP3 protocol was determined to be in the range (20 – 450) kbps and the throughput of IEC61850 protocol was determined to be in the range (1.6 – 16) Mbps.
College of Engineering, Science and Technology
M. Tech. (Electrical Engineering)