Photographing device for vehicle model automatic identification system

The utility model provides a photographing device for a vehicle model automatic identification system. A vehicle channel is provided with a channel gate. A video camera is installed on a gate column of one side of the channel gate. A ground sensing coil is arranged under the ground in front of the channel gate. A trigger signal line of the ground sensing coil is connected with a shutter driving switch of the video camera. When front wheels of a vehicle roll on the ground sensing coil, a trigger signal is generated by the ground sensing coil. The ground sensing coil with vertical coil diameter of 1-2m and transverse coil diameter of 2-3m is installed in the middle of the channel, or the ground sensing coil with vertical and transverse coil diameter of 1-2m is installed on one side of the channel. A vehicle photograph captured by the photographing device includes the whole vehicle face and a small part of side surface due to the positions of the video camera and the ground sensing coil. The vehicle photograph is large in area so that angular point selection and judgment of a Harris angular point detector are facilitated, accuracy in identification of the angular point detector is enhanced with identification accuracy of being 100%, and single complete inspection time of one vehicle in the green channel is only 15s.