基于STM32和PCI-104總線的發(fā)電廠同步授時(shí)卡的設(shè)計(jì)與實(shí)現(xiàn)
[Abstract]:Time synchronization is a very important basic work in power plant / substation. Unified and accurate time is an important measure to ensure the safe operation of power system and improve the level of power operation. According to many existing synchronous timing devices, by analyzing their shortcomings and combining with the popular microprocessors, we finally choose high performance and low cost. The STM32 series processors of the ARMCortex-M3 kernel designed for embedded applications with low power consumption are used to process the data. In the aspect of data transmission, we adopt the PCI-104 bus technology to transmit the data. The bus technology can well meet the real-time requirements of the system. The synchronous timing module is subdivided into two modules: the GPS receiver and the STM32 module. The standard protocol NMEA-0183STM32, which is responsible for receiving the unified RTCM (Radio Technical Commission forMaritime services, of the GPS navigation equipment, is the service for maritime claims of the Radio Technical Committee. It is used to decode and send time signals of time codes presented in NMEA-0183 form by GPS receiver. The synchronous timing module uses two large scale logic chips, a real-time clock chip and a STM32 microprocessor chip. The module can receive all kinds of synchronous pulse signals and absolute time scale signals from the main equipment. To convert it to absolute timescale scale data of 200uS in order to provide PC with absolute timescale with resolution of 200uS through PCI-104 bus. PCI-104 interface circuit is mainly realized by interface chip PCI9052. The driver of the system is written by Driverstudio to realize the communication between the card system and the host computer, and the test software of the upper computer is written by the MFC class.
【學(xué)位授予單位】:電子科技大學(xué)
【學(xué)位級(jí)別】:碩士
【學(xué)位授予年份】:2012
【分類號(hào)】:TM621;TP368.1
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