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Laser radar

A lidar and radar technology, applied in the field of ranging, can solve the problems of increasing the difficulty of radar rotor design, occupying lidar space, and lack of tight shaft design, achieving good support, reducing cost and complexity, and improving measurement accuracy. degree of effect

Active Publication Date: 2019-07-09
HESAI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing laser radar mainly adopts the structure design of the through-axis in the structure of the main axis system, and the so-called through-axis refers to the structure of the main axis extending from the top of the laser radar to the bottom, and from the bottom to the top The main axis of the laser radar occupies the space inside the laser radar, which increases the difficulty of the design of the ranging component or the radar rotor located above the laser radar.
Moreover, the cost of this through-shaft design is high, the mechanical structure is complicated, and the shafting design is not tight

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] Embodiment 1: A laser radar, including a main shaft, a radar rotor, an upper warehouse plate, a top cover and a base;

[0050] The upper housing plate is fixedly arranged relative to the radar rotor, and the upper housing plate is relatively closer to the base and farther away from the top cover in the axial direction of the lidar;

[0051] The main shaft is arranged perpendicular to the base, and is located between the upper warehouse board and the base.

Embodiment 2

[0052] Embodiment 2: The lidar according to Embodiment 1, further comprising a rotating bracket and a drive motor;

[0053] The rotating bracket includes a first part and a second part, the first part is a hollow structure and is suitable for being sleeved on the main shaft, and the second part is a disc structure perpendicular to the first part and is suitable for Coupled with the radar rotor, the second part includes at least three rotating sub-supports, the first end of each of the rotating sub-supports is coupled to the first part, and the second end of each of the rotating sub-supports The end is coupled to the edge of the disc surface of the second part, and the driving motor is adapted to drive the radar rotor to rotate through the rotating bracket.

Embodiment 3

[0054] Embodiment 3: According to the laser radar described in Embodiment 2, a supporting flange is also provided at the coupling position between the second end of each of the rotating sub-supports and the edge of the disc surface, and the supporting flange The direction of the protrusion is away from the base, and the radar rotor is adapted to be coupled with the rotating bracket through the supporting flange.

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Abstract

The invention discloses a laser radar. The laser radar disclosed by the invention comprises: a main shaft, a radar rotor, an upper cabin plate, a top cover and a base; the upper cabin plate is fixedlyarranged with respect to the radar rotor, and the upper cabin plate is relatively closer to the base in the axial direction of the laser radar and is further away from the top cover; and the main shaft is arranged to be vertical to the base and is located between the upper cabin plate and the base. The laser radar disclosed by the invention can shorten the wiring of each module, and is convenientto install and maintain, and the mechanical reliability of the laser radar is improved.

Description

technical field [0001] This application relates to the field of distance measurement, in particular to a laser radar. Background technique [0002] LiDAR is a general term for laser active detection sensor equipment. Its working principle is roughly as follows: the transmitter of the laser radar emits a laser beam. After the laser beam encounters an object, it returns to the laser receiver after diffuse reflection. The radar module according to The time interval between sending and receiving the laser beam is multiplied by the speed of light and divided by 2 to calculate the distance from the transmitter to the object. [0003] The existing laser radar mainly adopts the structure design of the through-axis in the structure of the main axis system, and the so-called through-axis refers to the structure of the main axis extending from the top of the laser radar to the bottom, and from the bottom to the top The main axis of the laser radar occupies the space inside the laser r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S17/48G01S7/481
CPCG01S7/481G01S17/48
Inventor 丁林森向少卿
Owner HESAI TECH CO LTD
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