Title:
DETECTION APPARATUS, DETECTION METHOD, AND LASER RADAR
Document Type and Number:
WIPO Patent Application WO/2022/116531
Kind Code:
A1
Abstract:
A detection apparatus (10), comprising: a receiving lens (11), used for receiving and converging an echo; a detection unit (12), receiving the echo and outputting an electrical signal and comprising at least one macro-pixel, each macro-pixel comprising an array constituted by multiple detectors; a diaphragm array (13), provided between the receiving lens and the detection unit and located on or near a focal plane, the diaphragm array comprising at least one sub-diaphragm, each sub-diaphragm comprising multiple optical switch pixels of which on/off can be independently controlled, each sub-diaphragm enabling one or more of the optical switch pixels to be turned on to form a light-passing area to allow the echo to pass through and irradiate onto a corresponding macro-pixel; a processing unit (14), performing calculation and processing according to the electrical signal; and a control unit (15), coupled to the diaphragm array (13) and the processing unit (14), controlling each sub-diaphragm in the diaphragm array (13), and for at least one sub-diaphragm therein, controlling on/off of the optical switch pixels of the sub-diaphragm according to a light spot distribution of the echo on the macro-pixel corresponding to the sub-diaphragm.
Inventors:
TAO JUN (CN)
XIANG SHAOQING (CN)
XIANG SHAOQING (CN)
Application Number:
PCT/CN2021/104199
Publication Date:
June 09, 2022
Filing Date:
July 02, 2021
Export Citation:
Assignee:
HESAI TECHNOLOGY CO LTD (CN)
International Classes:
G01S7/481; G01S17/02; G01S17/88
Foreign References:
| CN111398935A | 2020-07-10 | |||
| CN109814082A | 2019-05-28 | |||
| CN210666017U | 2020-06-02 | |||
| CN111413687A | 2020-07-14 | |||
| US20100019157A1 | 2010-01-28 | |||
| US20200072662A1 | 2020-03-05 |
Attorney, Agent or Firm:
BEIJING LAWSING IP FIRM (CN)
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