Device for monitoring abrasion condition of brake pad of automotive brake

The invention discloses a device for monitoring abrasion condition of a brake pad of an automotive brake. The device comprises a brake disc, and a protective cover is arranged above the brake disc. Through the arrangement of an infrared distance measuring sensor, the infrared distance measuring sensor is used for emitting a beam of infrared light, a reflection process is formed after the infrared light irradiates an object, a signal is received after the infrared light is reflected to the sensor, then CCD image processing is utilized to receive data of time difference between emission and receiving, the distance of the object is calculated after the data is processed by a signal processor, then, the data is taken as the initial value and transmitted into a storage module, and the initial value is referred to as a reference (for example, the initial value is 10 mm, and when the later measured value is 12 mm, it shows that the brake pad is abraded by 2 mm), a driver can conveniently observe the abrasion conditi