General power transmission line on-line monitoring software system based on wireless public network

Abstract

Through analyzing problems in aspects of multi-version coexistence, data integration, system expansion and capacity expansion for the power transmission line on-line monitoring software system, a set of decentralized remote monitoring software system based on wireless public network (GPRS/CDMA) was researched and developed. It consists of six subsystems and can expand with the scale of monitored objects. In detail discussed the design concept of key subsystems: the data acquisition service subsystem divided three logic processes of data acquisition, data parsing and data saving into three expandable and isolated software units; the surveillance and maintenance subsystem adopted multicast communication method to acquire status information from each node, so as to form different surveillance data queues interiorly; the expert subsystem designed the data management container by time scale and created a uniform plug-in interface according to analysis in different fields; the hardware debugging subsystem realized a general mechanism that can carry on local and remote hardware debugging, by using of the data stream adapter principle. Compared with traditional system, this system has been improved in availability, expandability, reliability and economical efficiency.