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Lidar simulation and its parameter calibration method, device and equipment

A laser radar and parameter calibration technology, applied in measurement devices, instruments, utilization of re-radiation, etc., can solve the problems of complex solutions, unfavorable LiDAR simulation, high implementation cost, and achieve the effect of low cost, simple implementation and simplified standard model

Active Publication Date: 2022-03-08
TENCENT TECH (SHENZHEN) CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The embodiment of the present application provides a laser radar simulation and its parameter calibration method, device and equipment to solve the problem that the existing laser radar parameter calibration method is too complicated, the implementation cost is high, and it is not conducive to the simulation of LiDAR

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  • Lidar simulation and its parameter calibration method, device and equipment
  • Lidar simulation and its parameter calibration method, device and equipment
  • Lidar simulation and its parameter calibration method, device and equipment

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Embodiment Construction

[0028] In order to make the purpose, technical solution and advantages of the present application clearer, the implementation manners of the present application will be further described in detail below in conjunction with the accompanying drawings.

[0029] The embodiments of the present application are introduced based on a computer device as an execution subject. The computer equipment here can be a server or a terminal, where the server can be an independent physical server, or a server cluster or distributed system composed of multiple physical servers, or it can provide cloud services, cloud databases, Cloud computing, cloud functions, cloud storage, network services, cloud communications, middleware services, domain name services, security services, CDN, and cloud servers for basic cloud computing services such as big data and artificial intelligence platforms, and terminals can be smartphones, Tablets, laptops, desktop computers, smart speakers, smart watches, etc., bu...

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Abstract

This application relates to the field of intelligent driving, and provides a laser radar simulation and its parameter calibration method, device and equipment. The method includes: simplifying the standard model of the echo signal power of the laser radar by combining parameters in advance to obtain a light wave energy attenuation model, wherein the light wave energy attenuation model includes three measurable parameters and the light wave energy attenuation ratio, the light wave energy The attenuation ratio is the parameter to be calibrated; obtain the values ​​of the three measurable parameters contained in the light wave energy attenuation model to obtain at least one set of parameter values; substitute the obtained at least one set of parameter values ​​into the light wave energy attenuation model to obtain at least one set of light wave energy attenuation Ratio, the minimum value in a group of light wave energy attenuation ratios is taken as the calibration value of the light wave energy attenuation ratio. Compared with the prior art, the technical solution provided by the present application is simple to implement, so that the cost becomes lower when calibrating the laser radar parameters.

Description

technical field [0001] The present application relates to the field of intelligent driving, in particular to a laser radar simulation and its parameter calibration method, device and equipment. Background technique [0002] LiDAR is the abbreviation of laser radar or laser ranging (Light Detection and Ranging). Its principle is similar to sonar. It emits laser beams around, calculates the reflected signals, and draws 3D information of the surrounding environment. According to the information obtained or the field of action, LiDAR can be divided into remote sensing, military and civilian (vehicle) and other categories. [0003] The simulation model of LiDAR plays a huge role in the application of LiDAR in actual scenes. An excellent simulation model depends on the accurate calibration of various parameters of LiDAR. However, in the existing technology, since the simulation model covers multiple physical parameters such as laser wavelength, pulse width, energy, beam size, atm...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01S7/497G01S7/48G01S17/931
CPCG01S7/497G01S7/4802G01S17/931
Inventor 宋科科
Owner TENCENT TECH (SHENZHEN) CO LTD