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Large-range laser scanning device based on high-density echo analysis and control system thereof

A technology of a laser scanning device and a laser measurement system, which is applied in the field of laser scanning control systems, can solve the problems of increased incidence of collision accidents with obstacles, low visibility, and the ability to reduce the risk of collision with obstacles, so as to avoid mechanical vibration and improve detection. Accuracy, longevity effect

Pending Publication Date: 2021-06-18
ZHEJIANG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this will lead to an increased incidence of obstacle collision accidents. The main limitation in low-altitude navigation operations is due to low visibility, which reduces the ability of the pilot to control the aircraft and recognize the obstacle collision hazard

Method used

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  • Large-range laser scanning device based on high-density echo analysis and control system thereof
  • Large-range laser scanning device based on high-density echo analysis and control system thereof
  • Large-range laser scanning device based on high-density echo analysis and control system thereof

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Embodiment 1

[0098] This embodiment provides a laser scanning system for scanning and detecting obstacles on the driving route during vehicle operation, including a protective casing, a laser scanning device inside the inner casing, and a control system based on the laser scanning device, such as figure 1 , figure 2 shown.

[0099] The laser scanning device includes a laser scanning galvanometer and a laser measuring system. Such as image 3 , Figure 4 As shown, the laser scanning galvanometer includes a first rotating device 1 , a second rotating device 2 , a third rotating device 3 and a first mirror 4 fixedly installed on the first rotating device 1 .

[0100] The first rotating device 1 includes a supporting base 11 and a first rotating shaft 12 mounted on the supporting base 11 and capable of rotating 360° around its central axis (A1). The first rotating shaft 12 is driven to rotate by a first motor. The first reflecting mirror 4 is fixedly mounted on one end of the first rotat...

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Abstract

The invention discloses a large-range laser scanning device based on high-density echo analysis and a control system thereof, and belongs to the technical field of control engineering and control systems. According to the laser scanning device, through the arrangement of a first rotating device, a second rotating device and a third rotating device, the circumferential rotation of a reflecting mirror in the horizontal direction and the vertical direction is achieved under the condition that the reflecting mirror rotates, and the multi-angle and multi-direction three-dimensional laser scanning with the scanning device as the center can be formed. Meanwhile, a damping structure is designed on the mechanical structure, so that mechanical vibration caused by high-speed rotation can be effectively avoided, the service life is prolonged, and the detection precision is improved. The laser scanning device provided by the invention can be mounted on a mobile carrier and is used for detecting obstacles on a driving route. The invention further provides a control system for motion control of the laser scanning device, and an algorithm for calculating the track and the sight line of the carrier is designed to help an upper computer system to make a decision command.

Description

technical field [0001] The present invention relates to the technical field of control engineering and control systems, in particular to a laser scanning device for detecting obstacles in a traveling path of a mobile vehicle and a laser scanning control system based on the device. Background technique [0002] In the laser radar system, the laser source illuminates the reflector of the laser radar to send the laser signal to the external environment, and the laser meets the target in the emission direction to generate a return signal. The receiving element in the laser radar receives the return signal and obtains it through a computer program. information required. The airborne lidar uses this principle to install the radar on the vehicle to form an airborne lidar detection system. The airborne lidar detection technology is to process the observation data such as position, distance and angle through a special algorithm to obtain the three-dimensional coordinates of the obje...

Claims

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Application Information

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IPC IPC(8): G01S7/481
CPCG01S7/4817
Inventor 司玉林俞浩胥博荣振威王峰
Owner ZHEJIANG UNIV
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