Research On Remote Fault Diagnosis Communication System Based On Network

First, the paper reviews the development history of remote fault diagnosis technology, and on this basis looks to the development prospect of this technology. The remote fault diagnosis technology is developed on the basis of the computer network technology, communication technology, control technology and database access technology.With the quick development and widespread application of modern information technology, the remote fault diagnosis service has become a reality. The paper focuses on the implementation of remote fault diagnosis system. In order to meet the developments and requirements, the remote fault diagnosis system uses the Web Services technology based on B/S structure, and realizes the distributed and cross-platform remote network communication.In addition, ActiveX control is embedded in web, and this realizes the field data collection, remote audio and video interaction and so on; and this also makes up the insufficiency of B/S structure and lightens the burden of Web server.The system sets a high demand in real-time and reliability of the information transmission. In order to improve the reliability of the communication system, we do data packetization in the transmission data, redefine the structure of the data packet and encapsulate the data packet in class. Otherwise,the communication design of this system uses the IOCP technology and the mechanism of heartbeat signals, greatly improves the transmission reliability of information between the client and server, reduces system costs, and greatly improved the system performance.The system uses the hybrid architecture of C/S and B/S. Therefore, The real-time of work and the security of communication have been greatly improved. And the system fully meets the requirements of remote fault diagnosis.