Detecting system of track train

The invention discloses a detecting system of a track train. The detecting system comprises information acquisition equipment, information transmission equipment and detecting equipment, wherein the information acquisition equipment is used for acquiring infrared parameter information of bearings of the track train, infrared parameter information of wheels of the track train and infrared parameter information of the bottom of the track train, and is also used for acquiring train marking information and operation parameter information of the track train; the information transmission equipment is used for forming a temperature distribution curve according to the infrared parameter information, and is also used for transmitting the temperature distribution curve, the train marking information and the operation parameter information to the detecting equipment; the detecting equipment is used for receiving the temperature distribution curve, the train marking information and the operation parameter information, and displaying the temperature distribution curve, the train marking information and the operation parameter information; and the information acquisition equipment and tracks of the track train are relatively fixed. According to the detecting system of the track train disclosed by the invention, the information acquisition equipment and the tracks of the track train are relatively fixed by the detecting system, so that when the track train moves at a high speed, the influence on the accuracy of detected data is avoided, and the accuracy of the detected data is improved.