Traffic Monitoring System of Highway Tunnel Based on PLC and iFIX
Tunnel, as a special section of tunnel structure, has disadvantages of easy occurrence, high damaged, and difficult to handle. To ensure road unblocked and driving safety in the highway tunnel, reduce the number of traffic accidents and prevent second accident happening, traffic monitoring system should be necessary for the highway tunnel. Taking the monitoring system for LIUSHAOGOU tunnel in QINGHAI as an example, the system is formed by ABB AC500 PLC redundancy system OPC server, ifix built-in OPC client driver read the server data, combined with industrial Ethernet technology to achieve remote data acquisition of the highway tunnel. It is proved on the running spot that the designed system operates easy, maintains conveniently, stable and high rate of data transmission.
NETL
NSTL
万方数据
维普
