Wheel triggering distance measuring device

The utility model relates to a wheel trigger distance measuring device, which comprises an automobile hub, a driven disc and a sensor monitoring module, the driven disc is coaxially and fixedly arranged on the outer side surface of the automobile hub, a plurality of detection points are uniformly arranged on the peripheral disc surface of the driven disc, identification modules are arranged in the detection points, and the sensor monitoring module is connected with the sensor monitoring module. The sensor monitoring module is installed on the inner side of a fender of a wheel through a support, the sensor monitoring module is close to the installation position of the recognition module, and the sensor monitoring module is in signal connection with the recognition module. The sensor monitoring module senses the recognition module on the driven disc to judge the running angle of the tire, and then the running distance is calculated. The whole device is simple in structure, convenient to install and maintain and