Single-photon distance measuring device, electronic module and mounting and debugging method of single-photon distance measuring device

Abstract

The invention discloses a single-photon distance measuring device, an electronic module and a mounting and debugging method of the single-photon distance measuring device. The device comprises a device base, a motor mounted on the device base and a radar movement mounted on the device base, wherein the radar movement is in transmission connection with the motor, and the motor drives the radar movement to rotate through the transmission mechanism; the radar movement comprises a processing control panel mounted on the device base, a radar optical machine mounted at the upper end of the processing control panel, a receiving lens which is mounted on the radar optical machine and electrically connected with the processing control panel, a transmitting lens which is electrically connected with the processing control panel and located on the side edge of the receiving lens, a transmitting and timing circuit board which is installed at the upper end of the processing control panel and electrically connected with the processing control panel, and a single-photon chip mounted on the transmitting and timing circuit board. Compared with a traditional TDC+APD scheme, the scheme is higher in precision, higher in performance, capable of achieving high-precision and high-frequency distance measurement and capable of being applied to distance measurement products such as sweeper radars.

Description

technical field [0001] The invention relates to the technical field of radar ranging, in particular to a single-photon ranging device, an electronic module and an installation and debugging method thereof. Background technique [0002] In the current technology, LiDAR mainly adopts two methods of triangulation and TOF (Time Of Flight) to measure the distance. However, there are some defects in the above two methods. The application range of triangulation is limited, and it can only measure short distances, and the accuracy is poor. [0003] The TOF scheme has two schemes: phase and pulse. The pulse scheme is widely used in the radar market. The pulse scheme is characterized by high precision, strong ranging capability, and strong anti-noise ability; the pulse scheme is mainly composed of a transmitting module, a receiving module, and a timing module. Processing The control module is composed of, among them, the transmitting module uses a pulse laser LD (laser Diode) to emit...

AI Technical Summary

Problems solved by technology

When the signal strength is different at the same position and the threshold of the comparator is fixed, the time of TDC timing is two different values. Therefore, the position of the leading edge of the signal is different, resulting in a large deviation in accuracy, which cannot meet the requirements of high-precision distance measurement.

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