Design of smart wireless changeover for continuous electric current feeding from power sources of variable capacities

Electric power has become a vital element for life today. Despite this importance, electric power consumers in Iraq suffer from the problem of noncontinuity and daily electric power supply interruption. This problem led to the use of various sources of electric power as an alternative to compensate for the shortage of electric power provided by the Iraqi national grid. In this work, a smart wireless changeover device is designed using wireless sensor networks technology aiming to solve problem caused by the multiplicity of power sources received at home and governmental buildings in Iraq by controlling operation of some electrical devices (which consume high current) in the home or workplace automatically when changing source of electricity from one to another. This solution will help to ensure the continuity of electric current feeding from power sources of variable capacities, also, to rationalize power consumption by assigning an operation priority to electric devices. Furthermore, a statistical measurement as a case study was performed in a building with a total power consumption of 160.8 KW/h. The result showed that the device functions effectively and it is capable of achieving an average saving in power of about 50% to 86% depending on the applied priorities and case study scenario

Application of remote monitoring and management of high-speed rail transportation based on ZigBee sensor network

Abstract Operational safety is the prerequisite for high-speed railway to carry out transportation work, and with the increasing mileage of high-speed railway in China, higher requirements are put forward for monitoring the operation environment of high-speed trains. From the point of view of the whole road, the wireless sensor network technology is fully applied to the monitoring of high-speed train operation environment. Based on the actual requirement of the high-speed train operating environment monitoring, the overall structure and logic frame of the high-speed train operating environment monitoring system based on wireless sensor network are put forward. By establishing the node structure model algorithm, and taking natural disaster and foreign object intrusion detection as an application example, the natural disaster and foreign object intrusion detection system based on wireless sensor network are designed