DC equipment monitoring system of substation based on GPRS technology
The DC equipment monitoring system of substation based on GSM and GPRS technology is introduced, which is composed of main station and DC monitoring devices,applying the object-oriented technology, database technology, multi-threading technology and mobile communication technology to realize the functions,such as data collection,abnormity alarm,statistic analysis,curve display,log generation and print, and Web. The GPRS network is used for system communication between main station and DC monitoring devices,the RS-485 bus between DC equipment and monitoring device,and the RS-232 bus between GPRS module and monitoring device. Special linkage is applied in the system. Data communication is not via Internet and the Internet server can not access GPRS module, which cooperates with the existing resources and ensures the security of real time communication.
general packet radio serviceDC equipmentmonitoring systemunmanned substationGSM
NETL
NSTL
万方数据
维普
