Laser ranging device and laser ranging method

A laser ranging and laser technology, which is applied in measuring devices, radio wave measuring systems, electromagnetic wave reradiation, etc., can solve the problems of inaccurate measured distance and inaccurate determination of the time information of transmitted signals, etc., to achieve flexibility and accuracy Good performance, increase flexibility, increase the effect of beam range

Pending Publication Date: 2020-09-08
武汉珞珈伊云光电技术有限公司
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Problems solved by technology

[0003] The purpose of the embodiments of the present application is to provide a laser distance measuring device and a laser distance measuring method to improve the problem of "the measured distance is not accurate enough because the time information of the transmitted signal cannot be accurately determined"

Method used

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  • Laser ranging device and laser ranging method
  • Laser ranging device and laser ranging method
  • Laser ranging device and laser ranging method

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Embodiment Construction

[0033] The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.

[0034] see figure 1 , the embodiment of the present application provides a laser ranging device 100 , including: a laser 10 , a transmitting optical assembly 20 , a receiving optical assembly 30 , a first photodetector 40 , a second photodetector 50 and a control module 60 .

[0035]Wherein, the laser 10 is used to emit laser light for scanning to the target object. The emitting optical assembly 20 is arranged in the light emitting direction of the laser light emitted by the laser 10, and the emitting optical assembly 20 is used to adjust the direction of the laser light. The receiving optical assembly 30 is arranged on the echo path where the laser light is reflected back by the target. The first photodetector 40 is electrically connected to the laser 10 and the control module 60 respectively. In...

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Abstract

The invention provides a laser ranging device and a laser ranging method. The device comprises a laser, an transmitting optical assembly and a receiving optical assembly arranged in an echo path of the laser reflected by a target object, a first photoelectric detector, a second photoelectric detector and a control module. The control module is electrically connected with the laser, the first photoelectric detector and the second photoelectric detector, and the control module is used for triggering the laser and obtaining the distance of the target object based on a first electric signal outputby the first photoelectric detector and a second electric signal output by the second photoelectric detector. Compared with the prior art, the laser output time can be accurately determined through seed light which is the same as the laser at the same moment, so that the distance measurement precision is higher.

Description

technical field [0001] The present application relates to the technical field of laser radar, in particular, to a laser ranging device and a laser ranging method. Background technique [0002] Lidar is a radar system that emits laser beams to detect characteristic quantities such as the position and speed of targets. Its working principle is to send a detection signal (laser beam) to the target, and then compare the received signal (target echo) reflected from the target with the transmitted signal, and after proper processing, the distance to the target can be obtained. However, since the time information of the transmitted signal cannot be accurately determined, the measured distance is not accurate enough. Contents of the invention [0003] The purpose of the embodiments of the present application is to provide a laser distance measuring device and a laser distance measuring method to improve the problem of "the measured distance is not accurate enough because the time...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S17/10
CPCG01S17/10
Inventor 毛庆洲刘新周昊张维通洪骄阳
Owner 武汉珞珈伊云光电技术有限公司
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