A solid-state laser radar and its ranging method
A technology of lidar and ranging method, which is applied in measurement devices, radio wave measurement systems, instruments, etc., can solve problems such as the need for special connecting devices, poor durability, poor stability, etc., to solve problems such as poor stability, high scanning frequency, high The effect of scanning efficiency
Active Publication Date: 2019-11-29
深圳量旌科技有限公司
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[0007] The purpose of the present invention is to provide a solid-state laser radar and its ranging method that solves the problems of poor stability, poor durability, and the need for special connecting devices caused by mechanical rotation, and can fundamentally improve scanning efficiency.
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[0019] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, and are not intended to limit the present invention.
[0020] see figure 1 , the specific embodiment adopts the following technical solutions: a solid-state laser radar, which includes a beam splitter 1, a laser generator 2, an angle fixing frame 3, an optical filter 4, a wide-angle camera 5, an image acquisition system 6, a laser generator 2 and the wide-angle camera 5 are installed on the fixed bracket 3 respectively, and the launch port of the laser generator 2 is equipped with a beam splitter 1, and the lens surface of the wide-angle camera 3 is equipped with a filter 4, and the wide-angle camera 5 is connected to the imag...
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A solid-state laser radar and a distance measuring method thereof relate to a 360-degree distance measuring device. The solid-state laser radar comprises a laser generator and a wide-angle camera which are mounted on an angular fixed frame. A spectroscope is mounted at the emission mouth of the laser generator. A filter lens is mounted on the surface of the lens of the wide-angle camera. The wide-angle camera is connected with an image acquisition system. The spectroscope is a linear or annular spectroscope. 360-degree omni-directional calibration at the same moment is realized by means of annular infrared laser marking. At least one wide-angle infrared laser camera is used to detect annular laser mark lines. Based on the principle of triangulation, the horizontal pixels of the camera are used to measure the laser points of angle subdivision, and the longitudinal pixels are used to measure the distance of angle subdivision. The problem that mechanical rotation leads to poor stability, poor durability and the need for a special connecting device is solved. The efficiency of scanning is improved fundamentally.
Description
technical field [0001] The invention relates to a 360-degree distance measuring device, in particular to a solid-state laser radar and a distance measuring method applied in the fields of mobile robots, self-driving cars and the like. Background technique [0002] Traditional laser radars are composed of a laser ranging system and a mechanical rotating pan / tilt. The rotating pan / tilt drives the laser ranging system to rotate to realize the rotating scanning ranging of the laser ranging system. This distance measurement method has problems such as low mechanical stability, poor durability, high line connection cost, and low measurement efficiency during the rotation process. [0003] Low mechanical stability. It refers to the rotation action of the traditional pan-tilt lidar, which is susceptible to external interference and affects its normal rotation speed. For example, the installation carrier is subjected to vibration and impact during work, which causes the pan / tilt to...
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IPC IPC(8): G01S17/08G01S7/481
CPCG01S7/481G01S17/08
Inventor 龚昕
Owner 深圳量旌科技有限公司