Kiln car identification method and system based on wall material production line

The invention discloses a kiln car identification technology based on a wall material production line. A kiln car identification system based on the wall material production line mainly comprises a kiln car signboard arranged on the side wall of a kiln car and used for numbering kiln cars according to the total number of kiln cars in a kiln factory; and an overall detection device placed and arranged in a detection area of the side edge of the designated position, where manufactured wall materials are carried onto an empty kiln car, of a setting line. The overall detection device is placed and comprises a kiln car signboard detection device; the kiln car signboard detection device is mainly composed of a camera, a Raspberry Pi and a programmable logic controller (PLC); the Raspberry Pi conducts license plate identification on images shot by the camera and returns data to the PLC in time; and the data sent by the Raspberry Pi to the PLC is used for upper computer configuration software to display which kiln ca