WO2026138879 - ANGLE MEASUREMENT METHOD AND APPARATUS, SCANNING APPARATUS, AND LASER RADAR
National phase entry is expected:
Publication Number
WO/2026/138879
Publication Date
02.07.2026
International Application No.
PCT/CN2025/145131
International Filing Date
24.12.2025
Title **
[English]
ANGLE MEASUREMENT METHOD AND APPARATUS, SCANNING APPARATUS, AND LASER RADAR
[French]
PROCÉDÉ ET APPAREIL DE MESURE D'ANGLE, APPAREIL DE BALAYAGE ET RADAR LASER
[Chinese]
角度测量的方法及装置、扫描装置及激光雷达
Applicants **
HESAI TECHNOLOGY CO., LTD.
Inventors
CHEN, Zhenliang
DENG, Qichao
CHEN, Jiaming
ZHAO, Wenya
Priority Data
202411941430.3
25.12.2024
CN
202411941413.X
25.12.2024
CN
Application details
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International Searching Authority |
CNIPA
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| Recordal of a Change of the Applicant's Name/Address |
Change of Applicant's Name and Address
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| Type of Assignment |
The Standard Agent's Assignment
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| Applicant's Legal Status |
Legal Entity
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| * | |
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| Entry into National Phase under |
Chapter I
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| Patent Delivery |
Send the Letters Patent by Courier
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| Translation |
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Quotation for National Phase entry
| Country | Stages | Total | |
|---|---|---|---|
| China | Filing, Examination, Granting | 2011 | |
| EPO | Filing, Examination, Granting | 13939 | |
| Japan | Filing, Examination, Granting | 2340 | |
| South Korea | Filing, Examination, Granting | 2512 | |
| USA | Filing, Examination, Granting | 4740 |
Total:
25,542
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Abstract[English]
The present disclosure provides an angle measurement method and apparatus, a scanning apparatus, and a laser radar. The angle measurement method comprises: a first angle sensor outputting a first signal; determining a first angle set on the basis of the first signal, the first angle set comprising a first angle value and a second angle value; a second angle sensor outputting a second angle set; determining calibration parameters of the first angle sensor at least on the basis of the first angle value, the second angle value, and the second angle set; and determining a rotation angle of a rotator on the basis of the first signal and the calibration parameters.[French]
La présente divulgation concerne un procédé et un appareil de mesure d'angle, un appareil de balayage et un radar laser. Le procédé de mesure d'angle comprend les étapes suivantes : l'émission d'un premier signal par un premier capteur d'angle ; la détermination d'un premier ensemble d'angles sur la base du premier signal, le premier ensemble d'angles comprenant une première valeur d'angle et une seconde valeur d'angle ; l'émission d'un second ensemble d'angles par un second capteur d'angle ; la détermination des paramètres d'étalonnage du premier capteur d'angle au moins sur la base de la première valeur d'angle, de la seconde valeur d'angle et du second ensemble d'angles ; et la détermination d'un angle de rotation d'un rotateur sur la base du premier signal et des paramètres d'étalonnage.[Chinese]
本公开提供一种角度测量的方法及装置、扫描装置及激光雷达。其中，角度测量的方法包括：第一角度传感器输出第一信号；基于第一信号确定第一角度集合，第一角度集合包括第一角度值和第二角度值；第二角度传感器输出第二角度集合；至少基于第一角度值、第二角度值和第二角度集合确定第一角度传感器的校正参数；基于第一信号和校正参数确定转动器的转动角度。