Design And Implementation Of Remote Supervising System Based On CDMA 1X

The thesis based on Yellow River Diversion Project. Through the research of the existing design of the supervising system of Yellow River Diversion Project, this passage pointed out some problems hard to be dealt with as follows:(1) Owing to the dispersion of control points and remote transfers of data, it cost a lot to construct the network of the supervising system and it was hard to implement the construction.(2) The connection mode of network needed to be taken into acount. Once the configuration of network changed or the nodes increased, the supervising system needed to be reconfigured.(3) Owing to the tanglesome physical communication line, the man-made communication error happened frequently. (4) When the communication malfunction occured, it needed various engineers to check and repair the fault. (5) It cost a lot to operate and maintain the supervising system. In order to solve these problems, the passage raised a design plan of supervising system based on CDMA 1X. Using actual data of local control unit, procedure modeling and simulation were implemented. During the course of modeling procedure analysis, a plan of wireless network configuration was designed and applied in the supervising system of Yellow River Diversion Project. The communication server was reconfigured and communication application "CDMA Server" was programmed using visual C++ 6.0.Based on the research, experiments were carried out using local data of 10KV protection relay. The results of the experiments indicated that the plan reduced the cost of the communication line construction and the maintenance of remote supervising system, improved its anti-jamming ability, increased its stability and controllability, was able to discover and solve the problem in time, and greatly lessoned the side influence of the system suspense.In the end, this passage showed the practical meaning of this plan, proposed...