Passenger counting device suitable for rail transit

The utility model provides a passenger counting device suitable for rail transit. The passenger counting device comprises a spring steel fixing sheet, a flame-retardant shell and a camera assembly. The camera assembly comprises a cavity structure composed of a camera upper cover and a camera lower cover, a PCB and a sensor heat dissipation support are arranged in the cavity structure, a sensor is arranged on the sensor heat dissipation support, and a heat conduction silica gel gasket is bonded to the position, right opposite to a PCB CPU chip, in the camera lower cover. The camera upper cover is adhered with an acrylic lens corresponding to the transmitting and receiving interface of the image sensor; the PCB is connected with the image sensor through a wire. According to the scheme, installation is easy, reliability is high, and destructive installation steps such as punching on the electric car are avoided; and embedded installation is adopted, perfect connection and matching with a vehicle body are achieve