城市軌道交通軌道電位的監(jiān)測(cè)是維護(hù)城市軌道交通安全穩(wěn)定運(yùn)行的重要部分。文中提出了軌道電位在線監(jiān)測(cè)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(duì)系統(tǒng)的各個(gè)組成部分進(jìn)行了研究，給出了現(xiàn)場(chǎng)總線與局域網(wǎng)的接口解決方案并對(duì)系統(tǒng)所用的傳感器進(jìn)行了設(shè)計(jì)。該系統(tǒng)已在地鐵現(xiàn)場(chǎng)進(jìn)行了實(shí)驗(yàn)驗(yàn)證。結(jié)果表明，該系統(tǒng)對(duì)軌道電位監(jiān)測(cè)實(shí)時(shí)準(zhǔn)確，具有可靠性高，成本低等優(yōu)點(diǎn)。
關(guān)鍵詞：局域網(wǎng)，軌道電位，監(jiān)測(cè)，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