Laser radar and laser radar control method
A laser radar and laser technology, applied in the detection field, can solve problems such as uneven scanning speed, low area density, and high density, and achieve the effects of expanding the field of view, improving resolution, and making full use of it
Pending Publication Date: 2018-12-18
SUTENG INNOVATION TECH CO LTD
View PDF0 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Existing solid-state laser radar usually uses vibrating mirrors, such as MEMS vibrating mirrors. Since the scanning speed of MEMS is not uniform during scanning, the obtained scanning waveform is a Lissajous figure, such as Figure 7 As shown, that is, the scanning speed of the solid-state lidar in the middle of the field of view is fast, and the scanning speed at the edge of the field of view is slow, resulting in the characteristics of the collected point cloud that the center point cloud is relatively sparse, and the edge point cloud is dense, resulting in the center of the field of view The scan accuracy is low
[0004] It can be seen that the density of the edge area of the point cloud of the lidar of the existing technology center is high and the density of the center area is low, resulting in low scanning accuracy of the center area of the lidar
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0049] The following embodiments of the present invention provide a laser radar and a laser radar control method, which can improve the resolution of the central area of the scanning field of view.
[0050] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0051] figure 1 Shown is the schematic diagram of the lidar of the embodiment of the present invention, as figure 1 Said, the lidar includes:
[0052] Emitter 110, for emitting outgoing laser light;
[0053] A vibrating mirror 120, configured to change the optical...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
| Property | Measurement | Unit |
|---|---|---|
| Angle | aaaaa | aaaaa |
| Angle | aaaaa | aaaaa |
Login to View More
Abstract
The embodiment of the invention discloses a laser radar and a laser radar control method. The laser radar comprises: a transmitter for emitting an emergent laser; a galvanometer for changing the optical path direction of the emergent laser; and a reflecting mirror with a special shape for changing the emitting direction of the emergent laser from the galvanometer again. According to the laser radar disclosed by the embodiment of the invention, point clouds in the central area of a scanning visual field are dense, the edges are sparse, and the resolution of the center area of the scanning visual field can be improved.
Description
technical field [0001] The invention relates to the detection field, in particular to a laser radar and a laser radar control method. Background technique [0002] Lidar is a radar system that emits laser beams to detect the position, speed and other characteristic quantities of the target. Its working principle is to first transmit the detection laser beam to the target, and then compare the received signal reflected from the target with the transmitted signal. After proper processing, the relevant information of the target can be obtained, such as target distance, azimuth, height, speed, attitude, and even shape and other parameters. [0003] Solid-state lidar is a kind of lidar, which has the advantages of high scanning accuracy and low cost. Existing solid-state laser radar usually uses vibrating mirrors, such as MEMS vibrating mirrors. Since the scanning speed of MEMS is not uniform during scanning, the obtained scanning waveform is a Lissajous figure, such as Figure ...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More IPC IPC(8): G01S7/481G01S17/08
CPCG01S7/481G01S17/08
Inventor邱纯鑫刘乐天
OwnerSUTENG INNOVATION TECH CO LTD