Research Of Unattended Transformer Substation Long-distance Image Supervisory System Based On SOPC

The unattended transformer substation supervisory system is mainly used in the electric power enterprise control center to carry through the real-time surveillance, the remote control and the record to the many subordinate transformer substations' working condition. At present the electrical power system vigorously promotes the unattended transformer substation. This system has basically realized to the major equipments monitoring of transformer substation, and can carry on the telemetering, the remote signaling, the remote regulating and the remote control of the transformer substation. But it is unable to monitor the transformer substation's environment, or realize in the true sense of unattended condition. It still needs some people to be on duty.This article studies a kind of unattended transformer substation long-distance image supervisory system, which is based on the SOPC technology, and takes a FPGA chip of Altera EP1C12Q240C8 as its carrier, and the soft nucleus embedded processor Nios II and the embedded operating systemμCLinux as its cores.This article's main task revolves the hardware design of the unattended transformer substation long-distance image supervisory system in each independent module .These modules contain embedded core module, video signal gathering and JPEG compression module, network interface module, and system power supply module. It gives a brief introduction to some methods of enhancing system antijamming ability and reliability in the hardware design.Based on the hardware design, this article then goes on to the software design of the unattended transformer substation long-distance image supervisory system.The software is divided into two parts: the driver software part and the application software part. It elaborates the driver software after simply analyzing the development of the equipment driver and then compiles the I~2C driver and the ZR36060 driver's programmes. At last it introduces the realization of Web server on the construction inμCLinux operation system, the system work flow, and also the CGI procedure development steps briefly.The result of running the unattended transformer substation long-distance image supervisory system indicates that the system is of good stability, and it can completely realize the function of the unattended transformer substation long-distance supervisory.