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Novel multi-thread 360-degree scanning type laser radar and implementation method thereof

A lidar and scanning technology, applied in the new 360° scanning lidar and its implementation field, can solve the problems of high price, high-performance slip ring quality and volume, and high price of multi-line 360° lidar. The effect of reducing quality and cost, improving reliability and longevity

Active Publication Date: 2017-06-13
XI AN JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Multi-line 360° scanning lidar plays a very important role in unmanned vehicles. At present, this type of lidar mainly adopts the multi-line laser emission / reception integrated scanning scheme developed by Velodyne Company of the United States. This scheme uses high-performance sliding The ring realizes the transmission of energy and signals, but the quality and volume of the high-performance slip ring are relatively large, and it is very expensive, resulting in a very high price of the multi-line 360° lidar

Method used

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  • Novel multi-thread 360-degree scanning type laser radar and implementation method thereof
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  • Novel multi-thread 360-degree scanning type laser radar and implementation method thereof

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Embodiment Construction

[0026] Such as figure 1 , figure 2 with Figure 4 As shown, a novel multi-line 360° scanning laser radar of the present invention includes a ring motor 4, and the ring motor 4 includes a motor rotor 14 and a motor stator 13, and the motor rotor 14 is divided into a mutually nested inner hollow cylindrical structure and an outer The hollow cylindrical structure and the hollow annular structure connecting the inner hollow cylindrical structure and the outer hollow cylindrical structure are three parts. The inner hollow cylindrical structure passes through the center of the bearing 15 and is firmly connected with the inner ring of the bearing 15. The outer hollow The inner wall of the cylindrical structure is inlaid with a magnetic piece 16; the motor stator 13 is a hollow cylinder, the inner wall of which is fixedly connected with the outer ring of the bearing 15, and a plurality of coils 17 are evenly wound on the outer wall, and the multi-line ranging subsystem 2 is fixedly ...

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Abstract

The invention discloses a novel multi-thread 360-degree scanning type laser radar and an implementation method thereof. The laser radar comprises an annular motor and a multi-thread laser ranging subsystem, wherein the annular motor is composed of an annular rotor and an annular stator, the multi-thread laser ranging subsystem is fixedly connected to the annular motor rotor, the multi-thread ranging subsystem can emit a plurality of beams of laser to achieve a multi-thread laser ranging function on an object, a power transmission coil and a receiving coil can form a wireless energy transmission access to provide electricity for the multi-thread ranging subsystem, a group of wireless data receiving and sending modules achieve a wireless communication function between the multi-thread laser ranging subsystem and a central management module, a photoelectric encoder and a photoelectric switch can measure angle information of rotation of the annular motor, the central management module can enable multi-thread ranging information and rotation angle measurement information to correspond to each other, a group of multi-thread laser radar detection data can be obtained, and detection data in a 360-degree range can be obtained along with continuous rotation of the annular motor. The novel multi-thread 360-degree scanning type laser radar can achieve non-contact transmission of energy and signal without using a slip ring and has the advantages of high reliability, long service life, low cost, simple structure and easiness to achieve.

Description

technical field [0001] The invention relates to the field of multi-line scanning laser radar, in particular to a novel 360° scanning laser radar and its implementation method. Background technique [0002] Multi-line 360° scanning lidar plays a very important role in unmanned vehicles. At present, this type of lidar mainly adopts the multi-line laser emission / reception integrated scanning scheme developed by Velodyne Company of the United States. This scheme uses high-performance sliding The ring realizes the transmission of energy and signals, but the quality and volume of the high-performance slip ring are relatively large, and it is very expensive, resulting in a very high price of the multi-line 360° lidar. Contents of the invention [0003] In view of the problems existing in the above-mentioned prior art, the object of the present invention is to provide a multi-line 360° scanning laser radar based on a ring motor and its implementation method, which can realize non-...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S7/481
CPCG01S7/481Y02A90/10
Inventor 孙剑徐飞杨凯
Owner XI AN JIAOTONG UNIV
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