城市軌道交通軌道電位的監(jiān)測是維護城市軌道交通安全穩(wěn)定運行的重要部分。文中提出了軌道電位在線監(jiān)測系統(tǒng)的總體架構(gòu)，利用Internet、地鐵局域網(wǎng)和CAN總線相結(jié)合
的通訊方式，對系統(tǒng)的各個組成部分進行了研究，給出了現(xiàn)場總線與局域網(wǎng)的接口解決方案并對系統(tǒng)所用的傳感器進行了設(shè)計。該系統(tǒng)已在地鐵現(xiàn)場進行了實驗驗證。結(jié)果表明，該系統(tǒng)對軌道電位監(jiān)測實時準確，具有可靠性高，成本低等優(yōu)點。
關(guān)鍵詞：局域網(wǎng)，軌道電位，監(jiān)測，地鐵
Abstract: Urban mass transit rail potential monitoring is an important part of
maintenance its safe and stable running. The overall structure of on-line rail potential
monitoring system has been provided, by use of the Internet, LAN and CAN Bus
combination of means of communication. The various components of the system were
studied. Fieldbus and LAN interface solutions have been given and the sensor used
in the system has been designed. The system has been tested in the subway. The
results show that the monitoring system to rail potential with accurate and real-time is
high reliability and low cost advantages.
Keyword: local area network, rail potential, monitoring, metro