Multi-line laser radar equipment and light emitting power control method

A radar equipment, multi-line laser technology, applied in radio wave measurement systems, instruments, etc., can solve problems such as signal distortion and damage to laser detectors, and achieve the effects of increasing ranging accuracy, improving stability, and protecting laser receiving components

Pending Publication Date: 2022-03-01
WUHAN WANJI INFORMATION TECH
View PDF0 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a multi-line laser radar device, which aims to solve the problems of laser detector damage and signal distortion caused by the fixed laser power of the traditional multi-line laser radar device

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Multi-line laser radar equipment and light emitting power control method
  • Multi-line laser radar equipment and light emitting power control method
  • Multi-line laser radar equipment and light emitting power control method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0052] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0053] In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as "first" and "second" may explicitly or implicitly include one or more of these features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0054] figure 1 It shows the first structural diagram of the multi-line laser radar device provided by...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention provides a multi-line laser radar device and a light output power control method, the multi-line laser radar device comprises a plurality of laser emission assemblies, a plurality of laser receiving assemblies, an emission signal selection circuit, a receiving signal selection circuit, a controller and a feedback regulation circuit, the controller selects and drives the corresponding laser emission assemblies, and the feedback regulation circuit drives the corresponding laser emission assemblies. Echo signals of the corresponding receiving channels are obtained through the correspondingly-arranged laser receiving assemblies and the receiving signal selection circuit, the feedback adjusting circuit carries out signal processing on the echo signals, and high-voltage driving signals with the pulse width negatively correlated with the pulse width of the echo signals are output to the corresponding laser emitting assemblies. The output power of the laser pulse is automatically adjusted for objects to be measured with different reflectivity, the amplitude of the echo signal is ensured to be within a preset range, the stability of the echo signal is improved, the signal distortion is reduced, and the ranging precision is effectively improved while the laser receiving assembly is protected.

Description

technical field [0001] The invention belongs to the technical field of laser radar, and in particular relates to a multi-line laser radar device and a light output power control method. Background technique [0002] Multi-line laser radar emits multiple laser beams from multiple laser transmitters to obtain the distance information of the object to be measured. The basic principle is to obtain the distance, etc. information. [0003] In the prior art, in order to maximize the detection distance, the laser light output power of each beam of the multi-line lidar is often maintained at a maximum fixed value, but in the actual detection environment, for close-range high-emissivity objects, the reflection to the laser detector The laser energy is strong, which is easy to cause certain irreversible damage to the laser detector. At the same time, the high-intensity laser echo is converted to an electrical signal, which is likely to cause signal distortion and affect the timing acc...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): G01S7/481G01S7/497
CPCG01S7/481G01S7/497
Inventor 向飞潘奇胡攀攀
Owner WUHAN WANJI INFORMATION TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap