Статті в журналах: "Drive by wireless systems"

1

He, Hong, Feng Ling Zhang, and Zhi Hong Zhang. "Adjustable Multi-Light Wireless Remote Control System Designed LED Light." Applied Mechanics and Materials 543-547 (March 2014): 1250–53. http://dx.doi.org/10.4028/www.scientific.net/amm.543-547.1250.

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With the development of LED technology, the actual demand of the people for the smart home lighting, this paper designed a multiple lamps for indoor wireless remote control dimmable LED lighting systems. LED driver is using two levels of drive structure, and driver power supply adopts double-road current output, and the size of the output current of each constant current source is flexible to adjust by remote control. Wireless remote control part control multiple lamps by using 4 * 4 keyboard, which realizes intelligent management of LED interior lighting in the smart home.

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2

Thongpull, Kittikhun, Nattha Jindapetch, and Wiklom Teerapabkajorndet. "Wireless ESD Event Locator Systems in Hard Disk Drive Manufacturing Environments." IEEE Transactions on Industrial Electronics 60, no. 11 (November 2013): 5252–59. http://dx.doi.org/10.1109/tie.2012.2227911.

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3

Dyduch, Janusz, and Roman Pniewski. "Concept of measuring force adjustment of crossover drives." Transportation Overview - Przeglad Komunikacyjny 2016, no. 12 (December 1, 2016): 37–42. http://dx.doi.org/10.35117/a_eng_16_12_05.

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As part of the project in the Department of Control Systems in Transport it has been developed a system for automatic data collection and automatic forecasting the status of railway signalling devices. In the frame of the project it was also developed a prototype system for wireless measurement of currents in drive motor together with parameters of environment. The system will be used for the automatic diagnosis of crossover drives.

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4

Tsow, Alex, Markus Jakobsson, Liu Yang, and Susanne Wetzel. "Warkitting: The Drive-by Subversion of Wireless Home Routers." Journal of Digital Forensic Practice 1, no. 3 (September 2006): 179–92. http://dx.doi.org/10.1080/15567280600995832.

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5

Graurs, Igors, Aleksandrs Vizulis, Aivars Rubenis, and Aigars Laizāns. "Wireless energy supply to public transport units with hybrid drive – trends and challenges." Transport and Telecommunication Journal 15, no. 1 (March 1, 2014): 67–76. http://dx.doi.org/10.2478/ttj-2014-0007.

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Abstract This paper describes the initial findings of research project “The Possibilities of Increasing Efficiency of City Bus Hybrid Propulsion Systems by Including Wireless Battery Charging” carried out by „LEO Research Centre” (Competency Centre for Latvian Electrical and Optical Manufacturing Industry). The project is aimed at developing wireless charging and optimising electric bus propulsion system for modern urban transportation applications. The project runs from the beginning of the 2013 until the end of 2015 and focuses on the sub-theme “Energy and Sustainable Transport”.

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6

Zhuang, Min, Ge Li, Kexin Ding, and Guansheng Xu. "Optimized Design of Mechanical Chain Drive Based on a Wireless Sensor Network Data Algorithm." Journal of Sensors 2021 (September 13, 2021): 1–13. http://dx.doi.org/10.1155/2021/2901624.

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In this paper, we use a wireless sensor network data algorithm to optimize the design of mechanical chain drive by conducting an in-depth study of the mechanical chain drive optimization. We utilize the crowdsourcing feature of the swarm-wise sensing network for assisted wireless sensor networking to achieve crowdsourcing-assisted localization. We consider a framework for crowdsourcing-assisted GPS localization of wireless sensor networks and propose two recruitment participant optimization objectives, namely, minimum participants and time efficiency, respectively. A model and theoretical basis are provided for the subsequent trusted data-driven participant selection problem in swarm-wise sensing networks. The sprocket-chain engagement frequency has the greatest influence on the horizontal bending-vertical bending composite in different terrain conditions. The dynamic characteristics under working conditions are most influenced, while the scraping of the scraper and the central groove significantly influenced horizontal bending and vertical bending. Under load conditions, the amplitude of the scraper and central groove scraping increases significantly, which harm the dynamics of the scraper conveyor. By monitoring the speed difference between the head and tail sprockets and the overhang of the scraper, the tensioning status of the scraper conveyor chain can be effectively monitored to avoid chain jamming and chain breakage caused by the loose chain, thus improving the reliability and stability of the scraper conveyor.

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7

Shi, Gui Lian, and Fu Li Ye. "Moving Mode of Wireless Capsule Endoscopy Driven by External Magnetic Field." Applied Mechanics and Materials 678 (October 2014): 318–21. http://dx.doi.org/10.4028/www.scientific.net/amm.678.318.

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The existing dynamical systems of wireless capsule endoscopy are studied and analyzed. Based on the shortcomings presented in paper, a novel driving method is proposed. That is driving the wireless capsule endoscopy with three-dimensional orthotropic magnetic field outside the human body, and the resultant magnetic field can be obtained and adjusted through the electric current flowing in three coils orthogonal to each other. This paper focuses on the analysis of complex moving mode of wireless capsule endoscopy, and the result is very important to the design of drive and control circuit.

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8

Zhao, Xingwen, Jiaping Lin, and Hui Li. "Privacy-Preserving Billing Scheme against Free-Riders for Wireless Charging Electric Vehicles." Mobile Information Systems 2017 (2017): 1–9. http://dx.doi.org/10.1155/2017/1325698.

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Recently, scientists in South Korea developed on-line electric vehicle (OLEV), which is a kind of electric vehicle that can be charged wirelessly while it is moving on the road. The battery in the vehicle can absorb electric energy from the power transmitters buried under the road without any contact with them. Several billing schemes have been presented to offer privacy-preserving billing for OLEV owners. However, they did not consider the existence of free-riders. When some vehicles are being charged after showing the tokens, vehicles that are running ahead or behind can switch on their systems and drive closely for a free charging. We describe a billing scheme against free-riders by using several cryptographic tools. Each vehicle should authenticate with a compensation-prepaid token before it can drive on the wireless-charging-enabled road. The service provider can obtain compensation if it can prove that certain vehicle is a free-rider. Our scheme is privacy-preserving so the charging will not disclose the locations and routine routes of each vehicle. In fact, our scheme is a fast authentication scheme that anonymously authenticates each user on accessing a sequence of services. Thus, it can be applied to sequential data delivering services in future 5G systems.

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9

Devana, Mayastri, Tresna Dewi, Nyayu Latifah Husni, Pola Risma, and Yurni Oktarina. "Desain Robot Pengintai Segala Medan dengan Kendali Wireless PS2." Journal of Applied Smart Electrical Network and Systems 2, no. 2 (December 31, 2021): 64–70. http://dx.doi.org/10.52158/jasens.v2i2.210.

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A mobile robots is one of the solution to overcome the deficiency of security surveillance camera systems that are static in nature, which are vulnerable to blind spots on the results of their observations. In this research, the surveillance robot is made to resemble the shape of a mars rover robot that is applied to be able to move more freely to stalk areas and be able to navigate on uneven surfaces. The movement of the surveillance robot wheel uses a wireless PS 2 remote control and is driven by a DC motor rotation as its main drive. The connection between the PS2 Remote Control and the surveillance robot is by using the Arduino Uno. In addition, this robot will be equipped with a camera that will send visual surveillance results from the robot to the smartphone.

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10

Woods, Stephen, and Timothy Constandinou. "Engineering Micromechanical Systems for the Next Generation Wireless Capsule Endoscopy." BioMed Research International 2015 (2015): 1–14. http://dx.doi.org/10.1155/2015/741867.

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Wireless capsule endoscopy (WCE) enables the detection and diagnosis of inflammatory bowel diseases such as Crohn’s disease and ulcerative colitis. However treatment of these pathologies can only be achieved through conventional means. This paper describes the next generation WCE with increased functionality to enable targeted drug delivery in the small intestinal tract. A prototype microrobot fabricated in Nylon 6 is presented which is capable of resisting peristaltic pressure through the deployment of an integrated holding mechanism and delivering targeted therapy. The holding action is achieved by extending an “anchor” spanning a 60.4 mm circumference, for an 11.0 mm diameter WCE. This function is achieved by a mechanism that occupies only 347.0 mm3volume, including mechanics and actuator. A micropositioning mechanism is described which utilises a single micromotor to radially position and then deploy a needle 1.5 mm outside the microrobot’s body to deliver a 1 mL dose of medication to a targeted site. An analysis of the mechanics required to drive the holding mechanism is presented and an overview of microactuators and the state of the art in WCE is discussed. It is envisaged that this novel functionality will empower the next generation of WCE to help diagnose and treat pathologies of the GI tract.

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11

Zhou, Guang-Dong, Mei-Xi Xie, Ting-Hua Yi, and Hong-Nan Li. "Optimal wireless sensor network configuration for structural monitoring using automatic-learning firefly algorithm." Advances in Structural Engineering 22, no. 4 (October 4, 2018): 907–18. http://dx.doi.org/10.1177/1369433218797074.

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Wireless sensor networks are becoming attractive data communication patterns in structural health monitoring systems. Designing and applying effective wireless sensor network–based structural health monitoring systems for large-scale civil infrastructure require a great number of wireless sensors and the optimal wireless sensor networks configuration becomes critical for such spatially separated large structures. In this article, optimal wireless sensor network configuration for structural health monitoring is treated as a discrete optimization problem, where parameter identification and network performance are simultaneously addressed. To solve this rather complicated optimization problem, a novel swarm intelligence algorithm called the automatic-learning firefly algorithm is proposed by integrating the original firefly algorithm with the Lévy flight and the automatic-learning mechanism. In the proposed algorithm, the Lévy flight is adopted to maximize the searching capability in unknown solution space and avoid premature convergence and the automatic-learning mechanism is designed to drive fireflies to move toward better locations at high speed. Numerical experiments are performed on a long-span bridge to demonstrate the effectiveness of the proposed automatic-learning firefly algorithm. Results indicate that automatic-learning firefly algorithm can find satisfactory wireless sensor network configurations, which facilitate easy discrimination of identified mode vectors and long wireless sensor network lifetime, and the innovations in automatic-learning firefly algorithm make it superior to the simple discrete firefly algorithm as to solution quality and convergence speed.

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12

Zhu, Li, Ji Ku Sun, Miao Li, and Li Song Yang. "Research and Design of Control System for Miniature Rescue Manipulator." Advanced Materials Research 753-755 (August 2013): 2010–14. http://dx.doi.org/10.4028/www.scientific.net/amr.753-755.2010.

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In order to expand the visual range of the small rescue manipulator, improve the target recognition capability and solve the problem of blocking actions under the condition of keeping the control systems accuracy and stability, we designed the control system for the rescue manipulator which included ATmega16 and PC. We made wireless receiving circuit using the wireless module and the motor drive circuit using the L298N module. We also made the software system of rescue manipulator based on VC++.Experiment shows that the control system can expand the range of the environment and improve the efficiency of rescue.

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13

Lin, Jzau Sgeng, and Sun Ming Huang. "An FPGA-Based Brain-Computer Interface for Wireless Electric Wheelchairs." Applied Mechanics and Materials 284-287 (January 2013): 1616–21. http://dx.doi.org/10.4028/www.scientific.net/amm.284-287.1616.

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A wireless EEG-based brain-computer interface (BCI) and an FPGA-based system to control electric wheelchairs through a Bluetooth interface was proposed in this paper for paralyzed patients. Paralytic patients can not move freely and only use wheelchairs in their daily life. Especially, people getting motor neuron disease (MND) can only use their eyes and brain to exercise their willpower. Therefore, real-time EEG and winking signals can help these patients effectively. However, current BCI systems are usually complex and have to send the brain waves to a personal computer or a single-chip microcontroller to process the EEG signals. In this paper, a simple BCI system with two channels and an FPGA-based circuit for controlling DC motor can help paralytic patients easily to drive the electric wheelchair. The proposed BCI system consists of a wireless physiological with two-channel acquisition module and an FPGA-based signal processing unit. Here, the physiological signal acquisition module and signal processing unit were designed for extracting EEG and winking signals from brain waves which can directly transformed into control signals to drive the electric wheelchairs. The advantages of the proposed BCI system are low power consumption and compact size so that the system can be suitable for the paralytic patients. The experimental results showed feasible action for the proposed BCI system and drive circuit with a practical operating in electric wheelchair applications.

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14

Fuji, Kiyotaka, and Yasuhiko Neba. "Electromagnetic Interference Characteristics and Reduction Using CISPR11 for a Medical Light Emitting Diode Drive DCDC Buck Converter." International Journal of Electronics and Electrical Engineering 9, no. 3 (September 2021): 78–82. http://dx.doi.org/10.18178/ijeee.9.3.78-82.

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Recently, many low-power LED (Light Emitting Diode) lighting fixtures that can contribute to a low-carbon society have been installed in clinical settings. However, since Alternating Current (AC) voltage cannot be used directly for LED devices, Direct Current (DC) voltage must be applied LED devices. For this reason, it is necessary for the LED equipment to install an ACDC power converter. A buck converter as an ACDC power converter is applied to the LED equipment, but Electromagnetic Interference (EMI) radiated from it has a strong influence on the wireless communication of a medical place. In particular, EMI radiated emission to medical telemeter systems using wireless communication becomes a significant problem of biomedical signal discontinuations. To investigate the EMI radiated strength, it must be measured using CISPR11 medical equipment international standard (International Special Committee on Radio Interference) on Limits and methods of measurement. This paper is focused on the LED drive DC power converter EMI radiated emission. The CISPR11 measurement EMI disturbance characteristics when a buck type current control DCDC buck converter circuit is used for the lighting of an LED device are shown. It is reported experimental results of EMI radiated emission characteristics improvement by changing the input and output circuit constants of the proposed circuit. Moreover, it is shown that can reduce to the floor noise level (background noise) when an output capacitor is inserted without an input filter.

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15

Wu, Zhiyi, Tinghai Cheng, and Zhong Lin Wang. "Self-Powered Sensors and Systems Based on Nanogenerators." Sensors 20, no. 10 (May 21, 2020): 2925. http://dx.doi.org/10.3390/s20102925.

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Sensor networks are essential for the development of the Internet of Things and the smart city. A general sensor, especially a mobile sensor, has to be driven by a power unit. When considering the high mobility, wide distribution and wireless operation of the sensors, their sustainable operation remains a critical challenge owing to the limited lifetime of an energy storage unit. In 2006, Wang proposed the concept of self-powered sensors/system, which harvests ambient energy to continuously drive a sensor without the use of an external power source. Based on the piezoelectric nanogenerator (PENG) and triboelectric nanogenerator (TENG), extensive studies have focused on self-powered sensors. TENG and PENG, as effective mechanical-to-electricity energy conversion technologies, have been used not only as power sources but also as active sensing devices in many application fields, including physical sensors, wearable devices, biomedical and health care, human–machine interface, chemical and environmental monitoring, smart traffic, smart cities, robotics, and fiber and fabric sensors. In this review, we systematically summarize the progress made by TENG and PENG in those application fields. A perspective will be given about the future of self-powered sensors.

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16

Duarte, Melissa, Chris Dick, and Ashutosh Sabharwal. "Experiment-Driven Characterization of Full-Duplex Wireless Systems." IEEE Transactions on Wireless Communications 11, no. 12 (December 2012): 4296–307. http://dx.doi.org/10.1109/twc.2012.102612.111278.

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17

Kouki, Rihab, Alexandre Boe, Thomas Vantroys, and Faouzi Bouani. "Autonomous Internet of Things predictive control application based on wireless networked multi-agent topology and embedded operating system." Proceedings of the Institution of Mechanical Engineers, Part I: Journal of Systems and Control Engineering 234, no. 5 (August 29, 2019): 577–95. http://dx.doi.org/10.1177/0959651819870340.

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This article investigates the problem of data-driven cooperative tracking for a class of multi-agent linear systems under imperfect wireless communication. An autonomous Internet of Things predictive control application is designed to drive a robot with one wheel. The proposed methodology has been developed using Revolutionary Internet of Things Operating System running on STM32 and radio frequency communication shields over the User Datagram Protocol. To evaluate the performance of the predictive control algorithm, the User Datagram Protocol has been used due to the high number of packet losses in the communication channel. A robust analysis of Internet of Things technology among agents, combined with a network predictive control strategy against packet loss, limited bandwidth and attack links is carried out. The main feature of this methodology is that it is possible to achieve consensus monitoring and stability of closed-loop control systems. The efficiency of the proposed design approach is demonstrated by several experimental scenarios.

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18

Georges, Jean-Philippe, Didier Theilliol, Vincent Cocquempot, Jean-Christophe Ponsart, and Christophe Aubrun. "Fault tolerance in networked control systems under intermittent observations." International Journal of Applied Mathematics and Computer Science 21, no. 4 (December 1, 2011): 639–48. http://dx.doi.org/10.2478/v10006-011-0050-x.

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Fault tolerance in networked control systems under intermittent observationsThis paper presents an approach to fault tolerant control based on the sensor masking principle in the case of wireless networked control systems. With wireless transmission, packet losses act as sensor faults. In the presence of such faults, the faulty measurements corrupt directly the behaviour of closed-loop systems. Since the controller aims at cancelling the error between the measurement and its reference input, the real outputs will, in such a networked control system, deviate from the desired value and may drive the system to its physical limitations or even to instability. The proposed method facilitates fault compensation based on an interacting multiple model approach developed in the framework of channel errors or network congestion equivalent to multiple sensors failures. The interacting multiple model method involved in a networked control system provides simultaneously detection and isolation of on-line packet losses, and also performs a suitable state estimation. Based on particular knowledge of packet losses, sensor fault-tolerant controls are obtained by computing a new control law using fault-free estimation of the faulty element to avoid intermittent observations that might develop into failures and to minimize the effects on system performance and safety.

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19

Zhang, Dawei, Qing-Long Han, and Xian-Ming Zhang. "Network-Based Modeling and Proportional–Integral Control for Direct-Drive-Wheel Systems in Wireless Network Environments." IEEE Transactions on Cybernetics 50, no. 6 (June 2020): 2462–74. http://dx.doi.org/10.1109/tcyb.2019.2924450.

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20

Farajizadeh, Farzad, D. Mahinda Vilathgamuwa, Dejan Jovanovic, Prasad Jayathurathnage, Gerard Ledwich, and Udaya Madawala. "Expandable N-Legged Converter to Drive Closely Spaced Multitransmitter Wireless Power Transfer Systems for Dynamic Charging." IEEE Transactions on Power Electronics 35, no. 4 (April 2020): 3794–806. http://dx.doi.org/10.1109/tpel.2019.2939848.

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21

Wang, Wenbin, Huayun Wang, Qiong Li, Jun Xu, Tianqi Meng, Bowen Zhang, and Zhen Zhang. "Analysis and Compensation of Incomplete Coupling for Omnidirectional Wireless Power Transfer." Energies 12, no. 17 (August 26, 2019): 3277. http://dx.doi.org/10.3390/en12173277.

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This paper proposes a detailed analysis of the incomplete coupling effect in omnidirectional wireless power transfer systems and a compensation method aiming to improve the transmission performance. Recently, omnidirectional wireless charging technologies have been gradually explored and studied. These charging technologies can transmit power to arbitrary directions in three-dimensional space. However, there are still specific regions where the transmitted power capability dramatically drops to an extremely low level due to the incomplete coupling effect. Accordingly, this paper provides a theoretical analysis and compensation of such an effect. The compensation effectiveness is validated by both a simulation and a 7 W experimental prototype. After the compensation, the transmitted power can be improved by 61% to drive the load in a full range of the space.

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22

Chen, Joy Long Zong, and Yu Cheng Hsu. "An Implementation of Energy Saving Control Systems with Contactless Programmable and PWM Scheme." Applied Mechanics and Materials 590 (June 2014): 376–79. http://dx.doi.org/10.4028/www.scientific.net/amm.590.376.

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The goal of this research is to develop a kind of contactless way to control sustainable energy device power system. The system can match most sustainable energy, such as solar energy or wind power generator. It can automatically switch with the best way to control sustainable energy power system which fit in. On the other hand, because single chip can transfer power instantly to drive device up, like charge smartphone, it is a highly customize device. With the control system, traditional sustainable energy device can work much longer life-time and stable. Through adjustable wireless protocol, PWM (pulse width modulation), low-power multi-purpose regulator circuit and instant feedback display, so it can be optimized most sustainable energy devices. The proposed control system is built by a single chip microcontroller which is serving as the integration of the control core of the circuit, voltage feedback monitor at the same time. In order to improve system performance, the research made for different drive designs to analyze and compare, and simulated calculation and experimented.

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23

Duan, Kang Hong, Li Ting Zhang, Long Ma, and Hong Xin Zhang. "Design and Application of Task Scheduling Module Based on Priority Table Query in Wireless Sensor Network Node." Applied Mechanics and Materials 536-537 (April 2014): 731–34. http://dx.doi.org/10.4028/www.scientific.net/amm.536-537.731.

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Event-driven systems and thread-driven systems are two major design philosophies of operating system in wireless sensor networks. Systems based on multi-threaded are more timeliness than the event-driven systems, which can meet the requirements of time-critical tasks by means of task preemption, while systems based on event-driven are more energy efficient.The article introduces a task scheduling module in event-driven system. The module takes a kind of priority table query method to choose the most important task with highest priority to schedule.It is seen that the module is suitable wireless sensor network.

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24

Li, Jiayang. "Applications of Wireless Communication in a New Dual Branch CTS Charge Pump Based on Employing Clock Matched Technology." Wireless Communications and Mobile Computing 2021 (August 14, 2021): 1–9. http://dx.doi.org/10.1155/2021/4014795.

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With the increase in communication requirements, new communication technologies and implementation methods have developed rapidly. The rise of emerging markets such as the Internet of Things, smart homes, smart cities, and wearables has promoted the development of wireless communication integrated circuits in the direction of monolithic, low energy consumption, and high energy efficiency. This paper proposes a new dual branch charge pump based on CTS charge pump with enhanced current drive capability and undesired charge transfer completely eliminated. Clock matched technology is proposed to completely eliminate undesired charge transfer caused by delay turn on and off of the auxiliary transistors in the traditional CTS charge pump. The current drive capability is enhanced by employing NMOS transistors with 2Vdd gate drive voltage, while traditional dual branch CTS charge pumps are based on PMOS with 1Vdd gate drive voltage. The output voltage ripple is also reduced resulting from a dual branch structure. Simulation results of output voltage gain and power efficiency for the proposed charge pump and other traditional charge pumps are provided. Comparisons are made to show the improvement of the proposed charge pump compared with other traditional charge pumps.

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Ternytskyi, Serhii, Ivan Rehei, Nazar Kandiak, Ihor Radikhovskyi, and Oksana Mlynko. "Experimental Research of Paperboard Cutting in Die Cutting Press with the Screw–Nut Transmission of Drive Mechanism of a Movable Pressure Plate." Acta Mechanica et Automatica 15, no. 3 (September 1, 2021): 122–31. http://dx.doi.org/10.2478/ama-2021-0017.

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Abstract This paper reports experimental research of torques during paperboard cutting in the die cutting press with the screw–nut transmission in the drive mechanism of the movable pressure plate. The purpose of the study is to substantiate the practical implementation of the pressure plate drive mechanism with the use of screw–nut transmission for the production of cartons of paperboard blanks. The manufactured experimental bench for the research of paperboard blanks provides the possibility of getting dependencies of loads on different parameters of the die cutting process. The developed method of the experimental research envisages the use of the strain gauge method and the wireless module for data measurement and software for its processing that allow getting trustworthy results with minimum faults. As a result of experimental research studies, the impact of paperboard thickness and cutting velocity on torque values has been established. Results of experimental research allow getting trustworthy and systematised information about torque values depending on the thickness of the paperboard, the paperboard fibre direction and pressure plate displacement velocity. It is established that torque values on drive shaft during die cutting of paperboard blanks made of folding boxboard with thickness that lay in range of 0.3–0.7 mm. Experimental research studies show the impact of rotation speed of a drive shaft of the pressure plate drive mechanism on the torque value. The article shows the workability of the designed device with screw–nut transmission in the drive mechanism of a movable pressure plate.

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26

Noam, Eli. "Let Them Eat Cellphones: Why Mobile Wireless is No Solution for Broadband." Journal of Information Policy 1, no. 1 (January 1, 2011): 470–85. http://dx.doi.org/10.5325/jinfopoli.1.2011.470.

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Abstract The policy of serving rural America through wireless broadband offers false hope for the future and promotes inefficient use of resources in the present, argues Professor Noam. Rural mobile broadband will never, he says, be a satisfactory substitute for wired (fiber or coaxial) systems for meeting foreseeable needs for increased throughput, creating a new “digital gap.” It is at best a temporary Band-Aid for addressing the increasingly uneven distribution of broadband quality. Eventually its inherently second-rate characteristics will drive the national network to an all-wired infrastructure. It would be better to recognize and address this now.

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Ye, Zhaohong, Yue Sun, Xiufang Liu, Peiyue Wang, Chunsen Tang, and Hailin Tian. "Power Transfer Efficiency Analysis for Omnidirectional Wireless Power Transfer System Using Three-Phase-Shifted Drive." Energies 11, no. 8 (August 18, 2018): 2159. http://dx.doi.org/10.3390/en11082159.

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In order to implement the omnidirectional wireless power transfer (WPT), a novel three-phase-shifted drive omnidirectional WPT system is proposed. This system is comprised of three independent phase-adjusted excitation sources, three orthogonal transmitting coils, and one planar receiving coil. Based on the mutual coupling theory, the power transfer efficiency is derived and the corresponding control mechanism for maximizing this efficiency is presented. This control mechanism only depends on the currents’ root-mean-square (RMS) values of the three transmitting coils and simple calculations after each location and/or posture change of the receiving coil, which provides the real-time possibility to design an omnidirectional WPT system comparing with the other omnidirectional systems. In aid of computer emulation technique, the efficiency characteristic versus the omnidirectional location and posture of the receiving coil is analyzed, and the analytical results verify the validity of the control mechanism. Lastly, a hardware prototype has been set up, and its omnidirectional power transmission capacity has been successfully verified. The experimental results show that the wireless power is omnidirectional and it can be effectively transmitted to a load even though its receiving coil moves and/or rotates in a 3-D energy region.

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Peng, Shengzhi. "Research on Multimedia Teaching Model of College Sports Driven by Wireless Communication Network Environment." Journal of Sensors 2022 (January 21, 2022): 1–11. http://dx.doi.org/10.1155/2022/8310797.

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This paper for wireless communication network environment driven college sports multimedia teaching, better use of all kinds of sports teaching resources, makes the limited sports equipment sports teachers and other education resource be fully used and shared, improves the quality of classroom teaching, enriches the students’ extracurricular sports activities, and breaks the traditional restrictions of time and space of physical education. The college sports multimedia teaching model supplements and promotes students’ learning of physical education in and out of class, provides new learning space and time for college students, greatly improves students’ initiative and enthusiasm in learning education, enhances the popularization of physical education theory knowledge, and scientifically and systematically improves students’ physical education quality. In this paper, the application of multimedia technology in college physical education teaching has carried on the theoretical research; this paper mainly discusses that the university sports teaching compared with the other culture has the characteristics of and the feasibility of the application of multimedia technology in the school sports teaching and auxiliary function of physical education teaching research, the standard of multimedia wireless communication under the network environment drive platform design criteria. This paper discusses the design criteria of multimedia network education platform for physical education and puts forward the overall structure model and function module model.

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Hwang, Jenq-Neng. "Wireless MediaNets: application-driven next-generation wireless IP networks." Multimedia Systems 17, no. 4 (November 11, 2010): 251–85. http://dx.doi.org/10.1007/s00530-010-0209-6.

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Jia, Jinliang, and Xiaoqiang Yan. "Application of Magnetic Coupling Resonant Wireless Power Supply in a Torque Online Telemetering System of a Rolling Mill." Journal of Electrical and Computer Engineering 2020 (May 14, 2020): 1–9. http://dx.doi.org/10.1155/2020/8582131.

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The torque of the main drive system is one of the most important force and energy parameters of the rolling mill, and the strain type torque online telemetry system is a practical method for measuring torque parameters. The strain gauges and transmitters on the rotating shaft are driven by a high-frequency induction power system. Their installation, debugging, and maintenance are cumbersome, and their very low power transmission efficiency (PTE) has become a challenging problem for online telemetry systems. In this paper, a magnetic coupling resonant wireless power supply method is utilized to replace the high-frequency induction power supply. Through theoretical and experimental research, it is concluded that the magnetically coupled resonant wireless power supply method can realize long-distance power supply, overcoming many shortcomings of the high-frequency induction power supply system. In the laboratory, a maximum PTE of 83.7% is obtained for a transmission distance of 50 mm. Under the influence of environmental factors common for the transmission shaft of a rolling mill, the PTE decreases by 34%, but normal operation of the system can be achieved by adjusting the compensation capacitance. The proposed system provides a guarantee for a long-term stable power supply on the measured axis of a rolling mill torque online telemetry system.

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31

Ma, Yuan, Xu Wang, Zhi Quan, and H. Vincent Poor. "Data-Driven Measurement of Receiver Sensitivity in Wireless Communication Systems." IEEE Transactions on Communications 67, no. 5 (May 2019): 3665–76. http://dx.doi.org/10.1109/tcomm.2019.2891708.

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32

Xie, Lianghui, Osama Elnahas, Qinglin Zhao, and Zhi Quan. "Data-Driven RF Transmit Power Calibration for Wireless Communication Systems." IEEE Wireless Communications Letters 9, no. 5 (May 2020): 721–25. http://dx.doi.org/10.1109/lwc.2020.2967213.

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Fourie, Christiaan M., and Hermanus Carel Myburgh. "An Intra-Vehicular Wireless Multimedia Sensor Network for Smartphone-Based Low-Cost Advanced Driver-Assistance Systems." Sensors 22, no. 8 (April 15, 2022): 3026. http://dx.doi.org/10.3390/s22083026.

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Advanced driver-assistance system(s) (ADAS) are more prevalent in high-end vehicles than in low-end vehicles. Wired solutions of vision sensors in ADAS already exist, but are costly and do not cater for low-end vehicles. General ADAS use wired harnessing for communication; this approach eliminates the need for cable harnessing and, therefore, the practicality of a novel wireless ADAS solution was tested. A low-cost alternative is proposed that extends a smartphone’s sensor perception, using a camera-based wireless sensor network. This paper presents the design of a low-cost ADAS alternative that uses an intra-vehicle wireless sensor network structured by a Wi-Fi Direct topology, using a smartphone as the processing platform. The proposed system makes ADAS features accessible to cheaper vehicles and investigates the possibility of using a wireless network to communicate ADAS information in a intra-vehicle environment. Other ADAS smartphone approaches make use of a smartphone’s onboard sensors; however, this paper shows the application of essential ADAS features developed on the smartphone’s ADAS application, carrying out both lane detection and collision detection on a vehicle by using wireless sensor data. A smartphone’s processing power was harnessed and used as a generic object detector through a convolution neural network, using the sensory network’s video streams. The network’s performance was analysed to ensure that the network could carry out detection in real-time. A low-cost CMOS camera sensor network with a smartphone found an application, using Wi-Fi Direct, to create an intra-vehicle wireless network as a low-cost advanced driver-assistance system.

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34

Girbés, Vicent, Daniel Hernández, Leopoldo Armesto, Juan Dols, and Antonio Sala. "Drive Force and Longitudinal Dynamics Estimation in Heavy-Duty Vehicles." Sensors 19, no. 16 (August 11, 2019): 3515. http://dx.doi.org/10.3390/s19163515.

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Modelling the dynamic behaviour of heavy vehicles, such as buses or trucks, can be very useful for driving simulation and training, autonomous driving, crash analysis, etc. However, dynamic modelling of a vehicle is a difficult task because there are many subsystems and signals that affect its behaviour. In addition, it might be hard to combine data because available signals come at different rates, or even some samples might be missed due to disturbances or communication issues. In this paper, we propose a non-invasive data acquisition hardware/software setup to carry out several experiments with an urban bus, in order to collect data from one of the internal communication networks and other embedded systems. Subsequently, non-conventional sampling data fusion using a Kalman filter has been implemented to fuse data gathered from different sources, connected through a wireless network (the vehicle’s internal CAN bus messages, IMU, GPS, and other sensors placed in pedals). Our results show that the proposed combination of experimental data gathering and multi-rate filtering algorithm allows useful signal estimation for vehicle identification and modelling, even when data samples are missing.

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35

Wolf, Maik, Silvio Hund, Mathias Rudolph, and Olfa Kanoun. "Design of a Wireless and Energy Autonomous Sensor Network for Condition Monitoring of Tram Drive Components." Designs 2, no. 4 (November 22, 2018): 50. http://dx.doi.org/10.3390/designs2040050.

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Although condition monitoring is very important for a reliable operation of tram powertrain components, conventional wired sensor systems do not manage to find wide acceptance because of installation and security costs. To address those issues, we propose a novel condition monitoring system based on a wireless and energy self-sufficient sensor network, where the individual sensor nodes harvest energy from vibrations, occurring while the tram is in motion. First, we performed an experimental investigation to identify the most important boundary conditions for the system design. Second, we designed individual sensor nodes using parameters derived from the previous investigation. Finally, the sensor network was deployed and tested on the tram gearboxes. The obtained measurement data were recorded at a sufficient sampling rate of 4.56 kHz and were successfully transferred from the tram gearbox to the network base station within a radius of 10 m inside the tram despite factors such as reflections, fading and electromagnetic compatibility. A piezoelectric vibration harvester is the power supply for the sensor nodes and it delivers up to 21.22 mW for relevant vibration frequency range between 10 Hz and 30 Hz, thus enabling deployment of autonomous sensor nodes.

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36

P, Ajay, Nagaraj B, and Ruihang Huang. "Deep Learning Techniques for Peer-to-Peer Physical Systems Based on Communication Networks." Journal of Control Science and Engineering 2022 (August 11, 2022): 1–12. http://dx.doi.org/10.1155/2022/8013640.

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Existing communication networks have inherent limitations in translation theory and adapt to address the complexity of repairing new remote applications at the highest possible level. For further investigation, you are more likely to pass this test using a data-driven program and increasing the exposure of your wireless network with limited distance resources. This study focuses on various deep learning strategies used in peer-to-peer communication networks. It discusses autoencoders, productive enemy networks, deep emotional networks, common neural networks, and long-term memory, all of which show promise in all aspects of a wireless communication network. In social networks, all of these strategies provide significant reliability, robustness, and cost-effective solutions. In-depth learning enhances test-based performance that helps design, develop, and adapt wireless communication networks.

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37

Fu, Jun-Song, Yun Liu, Han-Chieh Chao, and Zhen-Jiang Zhang. "Green alarm systems driven by emergencies in industrial wireless sensor networks." IEEE Communications Magazine 54, no. 10 (October 2016): 16–21. http://dx.doi.org/10.1109/mcom.2016.7588224.

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38

Chen, Fengwei, Peter C. Young, Hugues Garnier, Qijun Deng, and Marian K. Kazimierczuk. "Data-Driven Modeling of Wireless Power Transfer Systems With Multiple Transmitters." IEEE Transactions on Power Electronics 35, no. 11 (November 2020): 11363–79. http://dx.doi.org/10.1109/tpel.2020.2989155.

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39

Murad, Ahmed, Oguz Bayat, and Hamzah M. Marhoon. "Implementation of rover tank firefighting robot for closed areas based on arduino microcontroller." Indonesian Journal of Electrical Engineering and Computer Science 21, no. 1 (January 1, 2021): 56. http://dx.doi.org/10.11591/ijeecs.v21.i1.pp56-63.

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<span>Recently, communication via the wireless systems become promising, since the wireless communication system provides several benefits such as the disposal of the wire usage, provides long-distances communication, and the disposal of periodic maintenance of data transmission lines. In robotic science, the wireless system unit is the main part of the mobile robot. Whereas, only wireless communication module responsible for transmitting commands from the transmitter (e.g. mobile or PC) to the receiver (i.e. robot brain) and vice versa. With the increase in population growth and the construction of the urban, fires have become widely spread. It is worth mentioning here that the lives of firefighters are in permanent danger where they may be exposed to the combustion or inhalation of toxic gasses associated with the combustion process. Therefore, become necessary to find effective ways to reduce these risks. In this paper, a rover tank robot is implemented for fire extinguishing in closed areas based on the Arduino microcontroller, flame sensor, and motion sensor. The robot has a small water pump installed on a servo motor to pump water, the first flame sensor placed on the right of the robot's front and the second to the left of the robot's front. When a fire is explored through a flame sensor, the water pump sprays water to the location of the fire. The robot is driven wirelessly utilising the Bluetooth HC-06 module and the Wi-Fi camera utilised for driving purposes. Besides, a passive infrared (PIR) sensor is used to detect the presence of any living organism inside the fire site to alert the robot driver that an organism requires a rescue.</span>

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40

Lin, Chin-Yu, Li-Chi Chang, Jyh-Chern Chen, Meng-Sheng Chen, Hsun Yu, and Mei-Chih Wang. "Pain-Administrable Neuron Electrode with Wireless Energy Transmission: Architecture Design and Prototyping." Micromachines 12, no. 4 (March 25, 2021): 356. http://dx.doi.org/10.3390/mi12040356.

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Back pain resulted from spine disorders reaches 60–80% prevalence in humans, which seriously influences life quality and retards economic production. Conventional electrical pain relief therapy uses radiofrequency to generate a high temperature of 70–85 °C on the electrode tip to destroy the neural transmission and stop the pain. However, due to the larger area of stimulation, eliciting significant side effects, such as paralysis, contraction, and a slightly uncomfortable feeling, our study aimed to design a tiny and stretchable neural stimulatory electrode that could be precisely anchored adjacent to the dorsal root ganglion which needs therapy and properly interfere with the sensory neural transmission. We also designed a subcutaneously implantable wireless power transmission (WPT) device to drive the neural stimulatory electrode. Through the study, we elaborated the design concept and clinical problems, and achieved: (1) the architecture design and simulation of the transdermal wireless power transferred device, (2) a wrap-able pulsed radiofrequency (PRF) stimulatory electrode, (3) an insulation packaging design of the titanium protection box. The feasibility study and hands-on prototype were also carried out.

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41

Adiono, Trio, Sinantya Feranti Anindya, Syifaul Fuada, and Maulana Yusuf Fathany. "Curtain Control Systems Development on Mesh Wireless Network of the Smart Home." Bulletin of Electrical Engineering and Informatics 7, no. 4 (December 1, 2018): 615–25. http://dx.doi.org/10.11591/eei.v7i4.1199.

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In this paper, a curtain controller for smart home is presented. The aim of this work is to develop an end device in smart home system that will support power conservation function indirectly, specifically a curtain open/close controller. To achieve this, the 28BYJ-48 stepper motor is used as actuator with the assistance of ULN2003A driver. The motor is controlled using STM32L100RCT6 microcontroller, which is chosen due to its low power consumption. The microcontroller controls the motor’s direction by using a pulse width modulation logic signals emitted from four GPIO pins, which works based on data transmitted from central host through ZigBee protocol on Mesh network. Meanwhile, from the user’s side, the control is done by using Android-based application, which is connected to central host through Bluetooth. Based on the testing conducted on a miniature curtain, the curtain can be controlled wirelessly through the Android application. Furthermore, the device consumes power 210.5 mW for idle condition and 1,586 mW for process condition. The amount of the consumed power makes it suitable for low-power operation and in alignment with the smart home system’s overall aim for power conservation in the wireless sensor network-based smart home system.

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42

Kwak, Seung Soo, Yun Chan Im, and Yong Sin Kim. "Long-Lifetime Event-Driven Wireless Monitoring System for Pole-Mounted Transformers." Applied Sciences 11, no. 16 (August 9, 2021): 7313. http://dx.doi.org/10.3390/app11167313.

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As smart grids develop rapidly, low-cost monitoring systems for pole-mounted transformers increase in demand. Even though battery-powered wireless monitoring systems appear to provide optimal solutions, they consume large amounts of energy for continuous sampling and data transmission. Operation and maintenance costs then increase owing to reduced battery lifetime and battery replacement. To overcome this problem, this paper presents an event-driven battery-powered wireless monitoring system that monitors abnormalities of a transformer and transmits data only if an abnormality occurs. When the proposed event controller detects an abnormality, it enables a root mean square (RMS) converter and a peak detector for sampling and transmitting the maximum RMS value of the abnormal signal and then falls into sleep mode until the next event to save energy. Simulation and experimental results show that the proposed system enhances battery lifetime by up to two orders of magnitude compared to a conventional battery-powered wireless monitoring system.

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43

Oshima, Koji, Daisuke Yamamoto, Atsuhiro Yumoto, Song-Ju Kim, Yusuke Ito, and Mikio Hasegawa. "Online machine learning algorithms to optimize performances of complex wireless communication systems." Mathematical Biosciences and Engineering 19, no. 2 (2021): 2056–94. http://dx.doi.org/10.3934/mbe.2022097.

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<abstract><p>Data-driven and feedback cycle-based approaches are necessary to optimize the performance of modern complex wireless communication systems. Machine learning technologies can provide solutions for these requirements. This study shows a comprehensive framework of optimizing wireless communication systems and proposes two optimal decision schemes that have not been well-investigated in existing research. The first one is supervised learning modeling and optimal decision making by optimization, and the second is a simple and implementable reinforcement learning algorithm. The proposed schemes were verified through real-world experiments and computer simulations, which revealed the necessity and validity of this research.</p></abstract>

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44

Chien, Su Fong, Heng Siong Lim, Michail Alexandros Kourtis, Qiang Ni, Alessio Zappone, and Charilaos C. Zarakovitis. "Quantum-Driven Energy-Efficiency Optimization for Next-Generation Communications Systems." Energies 14, no. 14 (July 6, 2021): 4090. http://dx.doi.org/10.3390/en14144090.

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The advent of deep-learning technology promises major leaps forward in addressing the ever-enduring problems of wireless resource control and optimization, and improving key network performances, such as energy efficiency, spectral efficiency, transmission latency, etc. Therefore, a common understanding for quantum deep-learning algorithms is that they exploit advantages of quantum hardware, enabling massive optimization speed ups, which cannot be achieved by using classical computer hardware. In this respect, this paper investigates the possibility of resolving the energy efficiency problem in wireless communications by developing a quantum neural network (QNN) algorithm of deep-learning that can be tested on a classical computer setting by using any popular numerical simulation tool, such as Python. The computed results show that our QNN algorithm can be indeed trainable and that it can lead to solution convergence during the training phase. We also show that the proposed QNN algorithm exhibits slightly faster convergence speed than its classical ANN counterpart, which was considered in our previous work. Finally, we conclude that our solution can accurately resolve the energy efficiency problem and that it can be extended to optimize other communications problems, such as the global optimal power control problem, with promising trainability and generalization ability.

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45

Ma, He, Xinping Zhang, Ruixue Cui, Feifei Liu, Meng Wang, Cuiying Huang, Jiwei Hou, et al. "Photo-driven nanoactuators based on carbon nanocoils and vanadium dioxide bimorphs." Nanoscale 10, no. 23 (2018): 11158–64. http://dx.doi.org/10.1039/c8nr03622e.

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46

Watanabe, Toshiaki, and Yusuke Hakuta. "Evaluation of the Magnetic Field Leakage from Two Wireless Power Transfer Systems for EV/PHV Driven Simultaneously." World Electric Vehicle Journal 10, no. 2 (June 13, 2019): 41. http://dx.doi.org/10.3390/wevj10020041.

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Wireless power transfer for electric and plug-in hybrid vehicles has been developed to facilitate battery charging. In a wireless power transfer system, because the magnetic field leaks to the surroundings of the vehicle, it is important to evaluate the quantitative human exposure. The International Commission on Non-Ionizing Radiation Protection provides guidelines for human exposure assessment. In this study, we evaluate the magnetic field leakage under two parking configurations and current phase differences for two vehicles being simultaneously charged (3.7 kW at 85 kHz per vehicle). The results of the analysis show that the magnetic field leakage is lower than the reference level of the guidelines for all cases and that the leakage could be reduced by controlling the phase difference between the two wireless power transfer systems equally distributed from the single high-frequency power source for each parking configuration.

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47

Deshpande, Pallavi, N. Suganthi, G. Nirmala, Anand Pandey, Patteti Krishna, Meenakshi Anurag Thalor, and Evans Asenso. "Metaheuristic Deep Learning-Driven Wireless Communication Security Adaptation Using Multivariate Analysis of Variance (MANOVA)." Security and Communication Networks 2022 (May 6, 2022): 1–7. http://dx.doi.org/10.1155/2022/8426997.

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The implementation of accurate models to improve access technologies, communication transmission, and network slicing is anticipated to play a big part in the edge computing approach, as the demands and needs of individuals are quickly evolving. Deep learning models have tended to deliver more benefits in a wide range of applications; it also assists data providers in demonstrating considerable improvements in tackling complex real-world challenges. While the integration of connected wireless networks and deep learning is still in its infancy, wireless communication networks are increasingly focused on sophisticated technologies to meet the current and future needs of end users. Based on the theoretical and practical aspect that ranges from the basic aspect to future applications of wireless communication, this study is intended in addressing the opportunities of adopting metaheuristic deep learning-driven wireless communication. The researchers intend to apply descriptive design to the study as this enables in understanding the critical aspects of the study in an elaborate manner. The authors use both a primary data sources and a secondary data sources for performing the analysis. The secondary data source is sourced to understand the application of deep learning in the wireless communication area, and primary research is used to gather the data from the respondents to test the hypothesis and provide conclusions based on the analyses. The scope of this work is to utilize a quantitative model to undertake an analysis on evaluating the key parameters in the application of deep learning in wireless communication, which will allow for critical analysis and interpretation based on the findings.

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Shao, Feng, Gangyi Jiang, and Mei Yu. "Network-driven low complexity coding for wireless multi-view video system." Journal of Real-Time Image Processing 5, no. 1 (June 4, 2009): 33–43. http://dx.doi.org/10.1007/s11554-009-0123-3.

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Bhavadharini, R. M., S. Karthik, N. Karthikeyan, and Anand Paul. "Wireless Networking Performance in IoT Using Adaptive Contention Window." Wireless Communications and Mobile Computing 2018 (July 3, 2018): 1–9. http://dx.doi.org/10.1155/2018/7248040.

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Internet of Things (IoT) network contains heterogeneous resource-constrained computing devices which has its unique reputation in IoT environments. In spite of its distinctiveness, the network performance deteriorates by the distributed contention of the nodes for the shared wireless medium in IoT. In IoT network, the Medium Access Control (MAC) layer contention impacts the level of congestion at the transport layer. Further, the increasing node contention at the MAC layer increases link layer frame drops resulting in timeouts at the transport layer segments and the performance of TCP degrades. In addition to that, the expiration of maximum retransmission attempts and the high contentions drive the MAC retransmissions and the associated overheads to reduce the link level throughput and the packet delivery ratio. In order to deal with aforementioned problems, the Adaptive Contention Window (ACW) is proposed, which aims to reduce the MAC overhead and retransmissions by determining active queue size at the contending nodes and the energy level of the nodes to improve TCP performance. Further, the MAC contention window is adjusted according to the node’s active queue size and the residual energy and TCP congestion window is dynamically adjusted based on the MAC contention window. Hence, by adjusting the MAC Adaptive Contention Window, the proposed model effectively distributes the access to medium and assures improved network throughput. Finally, the simulation study implemented through ns-2 is compared with an existing methodology such as Cross-Layer Congestion Control and dynamic window adaptation (CC-BADWA); the proposed model enhances the network throughput with the minimal collisions.

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Park, Jihun, David B. Ahn, Joohee Kim, Eunkyung Cha, Byeong-Soo Bae, Sang-Young Lee, and Jang-Ung Park. "Printing of wirelessly rechargeable solid-state supercapacitors for soft, smart contact lenses with continuous operations." Science Advances 5, no. 12 (December 2019): eaay0764. http://dx.doi.org/10.1126/sciadv.aay0764.

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Recent advances in smart contact lenses are essential to the realization of medical applications and vision imaging for augmented reality through wireless communication systems. However, previous research on smart contact lenses has been driven by a wired system or wireless power transfer with temporal and spatial restrictions, which can limit their continuous use and require energy storage devices. Also, the rigidity, heat, and large sizes of conventional batteries are not suitable for the soft, smart contact lens. Here, we describe a human pilot trial of a soft, smart contact lens with a wirelessly rechargeable, solid-state supercapacitor for continuous operation. After printing the supercapacitor, all device components (antenna, rectifier, and light-emitting diode) are fully integrated with stretchable structures for this soft lens without obstructing vision. The good reliability against thermal and electromagnetic radiations and the results of the in vivo tests provide the substantial promise of future smart contact lenses.

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