US 12,481,021 B2
Signal receiving method and device, medium, and radar system
Yuan Liu, Wuhan (CN); Wei Xiong, Wuhan (CN); Ke Huang, Wuhan (CN); and Qi Zhu, Wuhan (CN)
Assigned to Shenzhen Yinwang Intelligent Technologies Co., Ltd., Shenzhen (CN)
Filed by SHENZHEN YINWANG INTELLIGENT TECHNOLOGIES CO., LTD., Shenzhen (CN)
Filed on Aug. 25, 2022, as Appl. No. 17/895,954.
Application 17/895,954 is a continuation of application No. PCT/CN2020/076854, filed on Feb. 26, 2020.
Prior Publication US 2022/0404463 A1, Dec. 22, 2022
Int. Cl. G01S 7/40 (2006.01); G01S 17/931 (2020.01)
CPC G01S 7/4013 (2021.05) [G01S 17/931 (2020.01)] 20 Claims
OG exemplary drawing
 
1. A radar system, comprising: a window, a radar transmitter, a radar receiver, a processor, and a signal receiver, wherein
the radar transmitter is configured to: transmit a radar detection signal, and transmit the radar detection signal to a front obstacle through the window;
the radar receiver is connected to the signal receiver, and is configured to: receive a reflected signal generated when the radar detection signal encounters the front obstacle, and transmit the reflected signal to the signal receiver;
the signal receiver is connected to the processor, and is configured to: when the radar transmitter transmits the radar detection signal, receive, after preset duration, the reflected signal transmitted by the radar receiver, convert the reflected signal into an electrical signal, and output the electrical signal to the processor, wherein the preset duration is a sum of first duration required for the radar detection signal to arrive at the window and second duration required for the reflected signal to arrive at the radar receiver from the window, wherein the signal receiver comprises: a control circuit and a converter, wherein
the control circuit is configured to: connect to a power supply, receive electric energy output by the power supply, and when the radar transmitter transmits the radar detection signal, supply electric energy to the converter after the preset duration; and
the converter is separately connected to the control circuit, the radar receiver, and the processor, and is configured to: when the control circuit supplies the electric energy, receive the reflected signal transmitted by the radar receiver, convert the reflected signal into the electrical signal, and output the electrical signal to the processor, and wherein the converter comprises a photodiode, and wherein an anode of the photodiode is connected to a first end of a first capacitor in the control circuit, and a cathode of the photodiode is connected to a signal amplifier; and
the processor is configured to process the electrical signal to obtain information about the front obstacle.