Implementation of Wireless Communication-Based Video Control System for Media Façade

2015 ◽  
pp. 575-581
Author(s):  
Sooyeon Lim ◽  
Jaeha Lyu
Keyword(s):  
Control System ◽  
Wireless Communication ◽  
Video Control

scholarly journals An Adaptive Differential Protection and Fast Auto-Closing System for 10 kV Distribution Networks Based on 4G LTE Wireless Communication

2019 ◽  
Vol 12 (1) ◽  
pp. 2 ◽  
Author(s):  
Wen An ◽  
Jun Jie Ma ◽  
Hong Yang Zhou ◽  
Hong Shan Chen ◽  
Xu Jun ◽  
...  
Keyword(s):  
Control System ◽  
Wireless Communication ◽  
Power System ◽  
Power Supply ◽  
Distribution Networks ◽  
Fault Isolation ◽  
Differential Protection ◽  
Current Differential Protection ◽  
Protection And Control ◽  
And Control

With the development of wireless communication technology and computer technology, more and more smart technologies have been applied in electricity distribution networks. This paper presents an adaptive current differential protection and fast auto-closing system for application in 10 kV distribution networks in China Southern Power Grid. The current differential protection can adaptively change its settings according to the topology change of the primary distribution networks, thus the system effectively reduces the operation and maintenance cost of the power distribution network. In order to restore the power supply for the healthy part of the 10 kV networks quickly after a power system fault is cleared, the protection and control system provides wide area control function for automatic fault isolation and automatic switching. The traditional overcurrent protection and control system have no fault location function, it may take several minutes or even hours to manually locate a fault and then restore the power supply. Compared with the protection and control system of the traditional 10 kV distribution networks, the system developed can locate and isolate faults within 900 ms (assuming that the operating time of the load switch is 700 ms), and can quickly restore power supply in less than one second after a power system fault is cleared.

Wireless Control for Pointolite in Light-Pen CMMs

2014 ◽  
Vol 602-605 ◽  
pp. 2217-2220 ◽  
Author(s):  
Rui Zhang ◽  
Shu Gui Liu ◽  
Huai Yu Wang
Keyword(s):  
Wireless Networks ◽  
Control System ◽  
Wireless Communication ◽  
Success Rate ◽  
Experimental Result ◽  
Error Reporting ◽  
Wireless Control ◽  
Light Pen

A wireless control system for pointolite on the light pen based on TMS320DM642 and CC2530 is introduced in this paper, in order to solve the problem that only pointolite's switch values could be controlled on the light pen in light-pen CMMs, but not lightening time values and brightness values. Through wireless networks of Zigbee, not only pointolite could be switched on or off separately, but also lightening time values and brightness values could be changed by TMS320DM642. Protocols of wired and wireless communication, multipoint answer and error reporting are also given, to improve anti-jamming capability of the system. The experimental result demonstrates that the control success rate could reach 96%, as the wireless modules of TMS320DM642 and the light pen within 8m. So the developed system has high anti-interference capability and could meet expected requirements.

The Design of Wireless Communication Module

2011 ◽  
Vol 320 ◽  
pp. 475-480
Author(s):  
Dong Wei Gao ◽  
Qing Gong Ma ◽  
Xiao Ling Zhou ◽  
Jun Hua Li
Keyword(s):  
Control System ◽  
Wireless Communication ◽  
Software Design ◽  
Hardware Design ◽  
Display Device ◽  
Communication Device ◽  
Communication Module

This task is based on the control of the MCU. In order to make it work, the first and foremost thing is to configure the interface among the MCU, display device and the wireless communication device with reason. In detail, the hardware design concludes the MCU control system, display circuit as well as the design of the wireless one. As for the software design, there are the initialization of the MCU and the display component. The programmer for the control of the display part and wireless part are also concluded.

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