The invention belongs to the field of traffic and particularly discloses an overload control off-site law enforcement high-speed high-precision signal acquisition terminal. The terminal comprises a front-end signal acquisition unit and a rear-end data processing unit. Aiming at the application scene of high-speed and high-precision dynamic weighing of non-site law enforcement for overload control at present, a high-speed signal acquisition terminal performs two-stage amplification on each sensor signal, the amplification gain can be adjusted, the amplified signal enters an analog-to-digital converter, the analog-to-digital converter is controlled by an FPGA to complete acquisition and caching of the signal, A rear-end ARM reads and processes signals according to a certain time sequence in a bus mode, so high-speed synchronous acquisition is realized, and an external interface adopts a CAN bus cascade mode to realize multi-lane expansion; and meanwhile, the terminal is suitable for a narrow strip type weighing system, a flat plate type weighing system and high-speed dynamic weighing scenes with the same signal type in overload treatment off-site law enforcement, the development period of a single functional product can be well shortened, the cost is reduced, and market competitiveness of a product is improved.

    本发明属于交通领域,具体公开了一种治超非现场执法高速高精度信号采集终端,包括前端信号采集单元和后端数据处理单元。针对目前治超非现场执法高速高精度动态称量的应用场景,高速信号采集终端对每只传感器信号进行两级放大,放大增益可调整,放大后的信号进入模数转换器,通过FPGA控制模数转换器完成信号的采集和缓存,后端ARM通过总线方式按照一定的时序完成信号的读取和处理,从而实现高速同步采集,对外接口采用CAN总线级联的方式实现多车道的扩展,同时适用治超非现场执法中窄条式称重系统和平板式称重系统以及信号类型相同的高速动态称量场景,能很好地缩短单个功能产品开发的周期,降低成本,提高产品的市场竞争力。


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    Title :

    High-speed and high-precision signal acquisition terminal for overload control off-site law enforcement


    Additional title:

    一种治超非现场执法高速高精度信号采集终端


    Contributors:
    QIAO JIGUO (author) / MA XIAO (author) / ZHANG WEI (author) / YAN LU (author)

    Publication date :

    2022-01-28


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    G01G Wägen , WEIGHING / G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS / H04L TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION , Übertragung digitaler Information, z.B. Telegrafieverkehr



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