Scanning device for 2D laser radar
A technology of scanning device and laser radar, which is applied in the direction of measuring device, using re-radiation, re-radiation of electromagnetic waves, etc., can solve the problems of inability to realize fast distance measurement, high-speed scanning and high-resolution monitoring, etc., and achieve fast scanning The effect of monitoring, high integration and simple structure
Inactive Publication Date: 2017-01-04
成都希德电子信息技术有限公司
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Problems solved by technology
[0004] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a 2D laser radar scanning device to solve the problem that the existing laser radar scanning device cannot meet high-speed scanning and high-resolution monitoring, and cannot realize fast distance measurement
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[0024] Such as Figure 1-3 As shown, the present invention is used for a 2D laser radar scanning device, including a laser distance measuring device 201, a motor 202 and an optical rotating mirror 203, the motor 202 is arranged on a base 207, and the optical rotating mirror 203 is connected with the rotating base 204 The motor 202 is arranged on the base 207 in parallel, the belt pulley 208 of the motor 202 and the rotating wheel 206 of the optical rotating mirror 203 are rotated synchronously at a uniform speed through a belt connection, and the laser distance measuring device 201 is arranged on the motor 202 through an angle bracket and connected with the optical rotating mirror 203 On the same horizontal line, the laser ranging device 201 emits a laser beam onto the reflective surface of the optical rotating mirror 203, the reflecting surface of the optical rotating mirror 203 forms an angle of 45° with the outgoing laser light, and the vertically emitted laser light is refl...
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The invention discloses a scanning device for a 2D laser radar. A motor is arranged on a base. An optical rotation mirror is arranged on the base through a rotation seat and is parallel to the motor. The belt pulley of the motor and the rotation wheel of the optical rotation mirror synchronously rotate in a uniform speed through a belt connection. A laser ranging device is arranged on the motor through an angle frame and is in the same horizontal level with the optical rotation mirror. The laser ranging device emits a laser beam to the reflection surface of the optical rotation mirror, the vertically emitted laser goes to the reflection surface of the optical rotation mirror to be parallely emitted, when the beam is irradiated to a barrier, the beam is reflected, an echo signal passes the optical rotation mirror again and is reflected to the receiving window of the laser ranging device, and current distance information is measured. When the optical rotation mirror is driven by the motor to rotate in a uniform speed, the laser ranging device can measure the distance information in each direction, after the distance information of different angles is uploaded to a data processing device through a communication port arranged on the base, and a current scanning barrier information result is displayed after information.
Description
technical field [0001] The invention relates to the field of laser radar scanning, in particular to a 2D laser radar scanning device. Background technique [0002] Lidar is widely used in scanning and monitoring the size of target obstacles and the distance between them and other objects, as well as the running speed of target obstacles, such as the size of obstacles on railway tracks, and the distance and relative speed between rails and obstacles. [0003] Taking the mainstream scanning lidar on the market as an example, this paper briefly introduces the working principle of lidar. Scanning lidar includes a laser transmitter, a laser receiver and a gimbal. The laser transmitter emits a beam of laser pulse, which is received by the laser receiver after being reflected by the target object. Laser receivers accurately measure the time between when a light pulse is emitted from the laser and when it is received by the laser. While the speed of light is known, the measured l...
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IPC IPC(8): G01S17/08G01S17/58G01S17/93G01S7/481
CPCG01S17/08G01S7/4817G01S17/58G01S17/93
Inventor 严强赵静朱建中李薪朱开东
Owner 成都希德电子信息技术有限公司