Laser radar

A laser radar and laser beam technology, applied in the field of environmental perception, can solve the problems of large volume and high cost of laser radar, and achieve the effects of reducing crosstalk, improving internal space utilization, and improving electromagnetic compatibility

Active Publication Date: 2019-05-28
HESAI TECH CO LTD
View PDF8 Cites 24 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention solves the technical problem...

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
  • Laser radar
  • Laser radar
  • Laser radar

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0090] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Apparently, the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0091] Reference herein to "one embodiment" or "an embodiment" refers to a particular feature, structure or characteristic that can be included in at least one implementation of the present invention. In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "top", "bottom" etc. is based on the orientation or positional relationship shown in the drawings, ...

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 laser radar. The laser radar comprises a laser emitting module, a light division module, a scanning module and a receiving module; the laser emitting module is used for emitting pulsed laser beams; the light division module is used for dividing the pulsed laser beams into N incident beams and transmitting the incident beams to the scanning module, wherein N is larger thanor equal to 2; the scanning module is used for reflecting the N incident beams to a three-dimensional space and receiving and reflecting N echo beams, reflected by a to-be-tested target in the three-dimensional space, of the N incident beams; the receiving module is used for receiving and processing the N echo beams; the light division module and the scanning module correspondingly form N subsidiary scanning view fields, and the N subsidiary scanning view fields constitute a total view field of the laser radar through view field splicing. By means of the laser radar, the light division moduleis utilized, light sources simply with the number smaller than N can be adopted on the premise of satisfying a scanning view field of the laser radar, the cost of the laser radar is lowered, the heatgenerated inside is reduced, and the size of the laser radar is reduced.

Description

technical field [0001] The invention relates to the technical field of environment perception, in particular to a laser radar. Background technique [0002] In the autonomous driving technology, the environmental perception system is a basic and crucial part, which guarantees the safety and intelligence of the autonomous vehicle. Among the environmental perception sensors, the laser radar has the advantages of reliability, detection range and ranging accuracy. Has incomparable advantages. [0003] As an important sensor for perceiving surrounding information, vehicle-mounted lidar has field of view and scanning accuracy as its important parameters. For the horizontal field of view, the existing technology usually enlarges the field of view by setting an optical lens in front of the scanning device, or sets up multiple lidars to splice the fields of view collected by them. The method of expanding the field of view of the front lens group requires a more complex lens group, ...

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
IPC IPC(8): G01S7/483G01S7/486
CPCG01S7/484G01S7/4861G01S7/487G01S17/931G01S7/483G01S7/486
Inventor 吴世祥申士林向少卿
Owner HESAI TECH CO LTD
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