Anti-pinch detection device for bus doors

An anti-pinch detection device for bus doors includes a processor, a radio frequency generator, a power amplifier, a radio frequency transceiver module, and an analog-digital converter. The processor provides timing control signals and performs an anti-pinch detection. The radio frequency generator generates a first FMCW signal from the timing control signal. The power amplifier amplifies the first FMCW signal. The radio frequency transceiver module transmits the first FMCW signal with a half-power beam width of 40DEG*20DEG to a target area and receives a reflected second FMCW signal and generates a beat frequency signal. The analog-digital converter converts the beat frequency signal into data and transmits the data to the processor, so that the processor performs the anti-pinch detection according to the data to determine whether there are passengers or objects in the target area. The target area is a space covering the inside and outside of the bus door for the passengers to get on and get off.