A laser radar system
A laser radar and optical system technology, applied in radio wave measurement systems, instruments, measurement devices, etc., can solve the problems of difficult production and adjustment, low space utilization, high cost, and reduce the probability of missed detection of the target. Simple, low-cost effects
Active Publication Date: 2021-11-19
TANWAY TECH (BEIJING) CO LTD
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Problems solved by technology
[0003] At present, the mechanically rotating multi-line laser radar widely used in the market has multiple single-point laser emitters and single-point detectors inside, similar to the stacking of multiple single-point laser rangefinders. The more lines, the more difficult it is to produce and adjust. The larger the process, the more complex the process and the higher the cost
Moreover, the space utilization rate in the system is low and the heat generation is large
In addition, its lidar point cloud (Point Cloud) is discretely distributed in the vertical direction, and there is a risk of missing detection for small-sized targets
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[0024] Hereinafter, exemplary embodiments according to the present invention are described with reference to the accompanying drawings, but it should be understood that the following embodiments are merely exemplary and are not intended to limit the present invention to the following embodiments.
[0025] First, refer to figure 1 The overall configuration of the laser radar system according to the present invention is described. Such as figure 1 As shown, the laser radar system according to the present invention sequentially includes a laser transmitter, a transmitting optical system, an optical rotating mirror, a receiving optical system and a laser detector along the light propagation path. Hereinafter, each component of the laser radar system according to the present invention will be described in detail.
[0026] The laser emitter according to the present invention adopts a pulsed laser, and the pulsed laser emits pulsed light at a certain period. In this exemplary embo...
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A lidar system is disclosed. The lidar system includes a laser transmitter configured to emit laser light; a transmitting optical system configured to shape the laser light emitted by the laser transmitter; an optical rotating mirror configured to scan the laser light in the first direction the laser light; and a receiving optical system configured to receive echoes diffusely reflected by the target object. In addition, the lidar system further includes a laser detector configured to convert echoes received by the receiving optical system into electrical signals.
Description
technical field [0001] The present invention mainly relates to the technical field of laser radar, and in particular, relates to a laser radar system with full coverage of a target field of view. Background technique [0002] Lidar was originally used for surveying and mapping. With the continuous improvement of its technology and technology, the cost has gradually decreased, and the scope of application has gradually expanded. At this stage, the downstream application market of lidar mainly includes automatic driving, assisted driving, AGV navigation and collision avoidance, service robots, industrial surveying and mapping, resource exploration and other fields. In terms of technical principles, there are three main types: triangulation lidar, TOF (Time Of Flight, time of flight) series lidar, and phase lidar. TOF lidar is currently the mainstream, and most of the mechanical rotary and solid-state lidars fall into this category. It measures the distance by calculating the...
Claims
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IPC IPC(8): G01S17/02G01S7/484
CPCG01S7/484G01S17/02
Inventor 王世玮郑睿童沈罗丰孟玉凰
Owner TANWAY TECH (BEIJING) CO LTD