The invention discloses an automobile tire detection device which comprises a TPMS sensor, an antenna matching network and a terminal antenna, the TPMS sensor adopts an ASK/OOK/FSK transmission technology, and the data transmission rate is larger than 20 kbps; the TPMS sensor is connected with the terminal antenna through the antenna matching network; the terminal antenna is an inflating valve or a metal base or a tire rim. According to the invention, by improving the radio frequency data transmission rate, the radio frequency emission time of the sensor is reduced, so that the emission power consumption is reduced; and the purposes of enhancing the signal transmission penetrability and improving the radio frequency immunity are achieved by narrowing the data transmission time. An inflating valve or a metal base or a tire rim is adopted as a terminal antenna, the length and area of the antenna are increased, the signal conversion efficiency is better than that of a built-in antenna, and the transmission stability of the sensor on a whole vehicle is better; the terminal antenna is located on the outer side of the tire body, the strength of wireless signals can be improved, long-distance wireless communication can be achieved more easily when the transmitting power of the TPMS sensor is the same, and the bit error rate is reduced.

    本申请公开了一种汽车轮胎检测装置,包括TPMS传感器、天线匹配网络和终端天线,TPMS传感器采用ASK/OOK/FSK传输技术,数据传输速率大于20kbps;TPMS传感器通过天线匹配网络与终端天线连接;终端天线为气门嘴或金属基座或轮胎轮辋。本申请中通过提升射频数据传输速率,以达到降低传感器射频发射时间,从而降低发射功耗;通过缩窄发射数据时间,达到增强信号传输穿透性,提高射频抗扰性的目的。采用气门嘴或金属基座或轮胎轮辋作为终端天线,增强了天线长度和面积,信号转换效率相对于内置天线会更好,传感器在整车上传输稳定性更好;终端天线处于轮胎胎体外侧,有利于提高无线信号的强度,在TPMS传感器发射功率相同时,更容易实现较远距离的无线通信,降低误码率。


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    Title :

    Automobile tire detection device


    Additional title:

    一种汽车轮胎检测装置


    Contributors:
    ZHANG JIANER (author) / HU ZENAN (author) / YU MINGGUANG (author) / SHEO (author)

    Publication date :

    2024-03-26


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60C VEHICLE TYRES , Fahrzeugreifen



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