Eye-safe laser triangulation measurement system

US11221412B2 · kind B2 · utility

Assignee

• ANHUI COWAROBOT CO., LTD. · CN

Inventors

• Qiang Wang · Beijing, CN
• Runxi Zhang · Wuhu, CN
• Tao He · Wilmington, US
• Wenlong Liao · Shanghai, CN
• Jianfei Zhang · Guilin, CN
• Lei Zhao · Beijing, CN
• Ding Huang · Kaohsiung, TW
• Liyuan Liu · Shanghai, CN

Key dates

• Filing date: Apr 24, 2017
• Grant date: Jan 11, 2022
• Expiry date: Oct 26, 2038

Classification

• Technology area (CPC G): Physics
• CPC primary: G01S17/08
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

The present disclosure provides an eye-safe laser triangulation measurement system, including a laser transmitter, an optical projection apparatus, a laser beam capturing unit, a cooperation unit, and an image processing apparatus. The laser transmitter is configured to generate point pulse laser of a pulse laser beam. The optical projection apparatus is disposed at a front end of the laser transmitter, and is configured to convert the point pulse laser into a line laser. The laser beam capturing unit is configured to capture reflected light obtained by the line laser at a target position to obtain a laser image. The cooperation unit is configured to control on and off of the laser transmitter, and control capture of the laser beam capturing unit. The image processing apparatus is configured to perform 3D modeling on the laser image to obtain a distance to the target position.