The Research And Application Of Long Distance Multi-point Monitor And Control System

At present, because the characteristics and special application occasions of remote monitoring system, No communication bus or system can totally satisfy the actual request that long distance multi-point monitoring and controlling system. This dissertation researched and developed long distance multi-point monitoring and controlling system (LMMCS) with the computer, network, the micro-electric and field bus technology. And it designed a suitable field bus for the system supply power, long distance, multi-point, and full duplex communications. This paper adopted Zero Power design method to develop ultra-low consumptions monitor and control equipments, and offered technical support and guarantee for stability, running reliably of the long distance multi-point monitoring and controlling system.Long distance multi-point monitoring and controlling system can be divided into information level, controller level and device level. It formed "the Pyramid" management control network. This dissertation furthers investigate a regional LMMCS formed of scene and middle level emphatically. On the basis of Enhanced M-BUS and Zero Power technological, the paper developed corresponding software and hardware products, and took a series of non- electromagnetism interfere ways and the dependability design. Put up the platform to simulate spot environment, and carry on the overall experiment to verify: every technical indicator and performance index of long distance multi-point monitoring and controlling system can be satisfied, and the system has very high theory value and practical value.