Environment-based millimeter wave radar calibration device

A millimeter wave radar and equipment technology, applied in the automotive field, can solve a large number of supporting problems, and achieve the effect of reducing the occupancy rate, facilitating height adjustment, and improving versatility

Pending Publication Date: 2021-03-19
SHANGHAI DIGAUTO AUTOMOBILE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide an environment-based millimeter-wave radar calibration device, which solves the problem of testing the accuracy of millimeter-wave radar detection in rainy and foggy environments in outdoor environments in the prior art, and requires a large number of supporting integrated equipment. Questions about vehicle testing equipment and related professionals

Method used

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  • Environment-based millimeter wave radar calibration device

Examples

Experimental program
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Effect test

Embodiment 1

[0035]The present invention installs the measured millimeter-wave radar 11 on the three-dimensional turntable 10 when testing in a simulated rainy environment, and ensures that the measurement center of the millimeter-wave radar 11 is parallel to the movement axis of the calibration target 12. In the drainage pipe 4 of the pipe 5, the water flows through the shower nozzle 7 on the surface of the rain gauge pipe 5 to spray water droplets, and the water supply pressure of the water pump is adjusted according to the simulated rainfall, thereby simulating the environment of light rain, moderate rain, and heavy rain to achieve the set value. After the indicator is set, the motion platform 16 is started. Driven by the servo motor 24, the motion platform 16 drives the calibration target 12 to move at a certain speed along the linear guide rail 14, and at the same time collects the test results of the millimeter wave radar 11 and the motion state of the motion platform 16. , adjust the...

Embodiment 2

[0037] The present invention installs the measured millimeter-wave radar 11 on the three-dimensional turntable 10 when simulating a foggy environment for testing, and ensures that the measurement center of the millimeter-wave radar 11 is parallel to the movement axis of the calibration target 12, and uses a water pump to pump water into the foggy environment of the installation. In the drainage pipe 4 of the spray pipe 6, the water flows through the mist nozzle 8 on the surface of the mist spray pipe 6 to spray the water mist, and adjust the water supply pressure of the water pump according to the size of the simulated mist, thereby simulating the foggy environment with different visibility to achieve After setting the index, start the motion platform 16, under the drive of the servo motor 24, the motion platform 16 drives the calibration target 12 to move at a certain speed along the linear guide rail 14, and collects the test results of the millimeter wave radar 11 and the mot...

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Abstract

The invention discloses an environment-based millimeter wave radar calibration device which comprises a rain and fog environment simulation system, a radar detection system and a calibration target moving platform, and is characterized in that the rain and fog environment simulation system is composed of a plurality of groups of uniformly arranged drainage pipes, and the surfaces of the drainage pipes are fixedly connected with a plurality of rainfall injection pipes and fog injection pipes which are distributed at equal intervals; the rainfall injection pipes and the fog injection pipes are vertically connected with the drainage pipes, the radar detection system comprises a fixed support, a three-dimensional rotary table and a millimeter-wave radar, and the calibration target moving platform comprises a calibration target, a base, a linear guide rail, a driving mechanism and a moving platform. The rain and fog environment simulation system is used for simulating rainy days or foggy days, the movable calibration target is matched, the accuracy of detection data of the millimeter-wave radar in the rainy days or foggy days can be conveniently tested, the matched whole vehicle test equipment and related professionals are simplified, the occupancy rate of various resources is reduced, the time is saved, and the cost is reduced.

Description

technical field [0001] The invention relates to the technical field of automobiles, in particular to an environment-based millimeter-wave radar calibration device. Background technique [0002] The research and development of intelligent vehicles belongs to the strategic development direction of various car companies. With the implementation of various supporting technologies, laws and regulations, the mass production of intelligent vehicles is just around the corner, and will gradually enter people's daily life, and finally realize intelligent transportation with high safety and no need for human intervention. [0003] In the research and development stage of intelligent vehicles, it is very necessary to test the whole vehicle and each system. In a closed test site or indoors, use various test tools and test benches, as well as related traffic object simulation objects, to build a real traffic scene, and then drive the tested vehicle to complete the driving actions require...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S7/40
CPCG01S7/40
Inventor 吕济明李晓英董立波白光磊刘志山
Owner SHANGHAI DIGAUTO AUTOMOBILE TECH CO LTD
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