The invention discloses a phi-OTDR-based traffic flow real-time monitoring system and method. The system comprises a sensing optical cable, a phi-OTDR-based optical fiber vibration monitoring host, aswitch and a monitoring terminal, wherein the sensing optical cable is laid on the two sides of a road of a monitored road section in parallel and used for monitoring vibration signals caused in the running process of vehicles on the road in real time; the optical fiber vibration monitoring host is connected with the sensing optical cable and is used for acquiring the vibration signals monitored by the sensing optical cable and analyzing and processing the vibration signals to obtain optical signal intensity; the switch is connected with the optical fiber vibration monitoring host through a network cable and transmits the optical signal intensity to the monitoring terminal in a network communication mode; and the monitoring terminal is used for displaying in the form of a vibration signalwaterfall plot according to the light signal intensity and monitoring vibration signals caused by vehicle driving on the road in real time. According to the invention, the traffic flow above the roadcan be visually and reliably monitored in real time in 24 hours in an all-weather manner, and the practical value is high.

    本发明公开了一种基于的车流量实时监测系统及方法,该系统包括:传感光缆、基于的光纤振动监测主机、交换机和监控端;其中:传感光缆,平行铺设在监测路段的道路两侧,对道路车辆行驶过程中引起的振动信号进行实时监测;基于的光纤振动监测主机,与传感光缆相连,用于获取传感光缆监测到的振动信号,并对振动信号进行分析处理,得到光信号强度;交换机,通过网线与基于的光纤振动监测主机相连,以网络通信的方式将光信号强度传输至监控端;监控端,用于根据光信号强度以振动信号瀑布图的形式进行展示,实时监控公路上车辆行驶引起的振动信号。本发明可以二十四小时全天候地对公路上方车流量进行直观可靠的实时监测,实用价值高。


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    Title :

    Phi-OTDR-based traffic flow real-time monitoring system and method


    Additional title:

    一种基于φ-OTDR的车流量实时监测系统及方法


    Contributors:
    MING CHANGPENG (author) / DONG LEI (author) / TIAN MING (author) / WANG YING (author) / LIU HONGKAI (author)

    Publication date :

    2020-05-12


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    H04B TRANSMISSION , Übertragung / G01D MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE , Anzeigen oder Aufzeichnen in Verbindung mit Messen allgemein / G01H MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES , Messen von mechanischen Schwingungen oder Ultraschall-, Schall- oder Infraschallwellen / G06T Bilddatenverarbeitung oder Bilddatenerzeugung allgemein , IMAGE DATA PROCESSING OR GENERATION, IN GENERAL / G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS



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