Multi-line laser radar system, multi-line laser radar device and method thereof
A multi-line laser and radar system technology, applied in the field of radar, can solve problems such as hidden dangers of safe driving
Pending Publication Date: 2021-04-27
ZHEJIANG SUNNY INTELLIGENT OPTICAL TECH CO LTD
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Problems solved by technology
However, it is precisely because the installation position of this kind of laser radar is relatively high, and the vehicle itself will also limit the detection direction of the laser radar, so there will inevitably be certain blind spots around the vehicle, which will bring huge hidden dangers to safe driving.
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[0071] The following description serves to disclose the present invention to enable those skilled in the art to carry out the present invention. The preferred embodiments described below are only examples, and those skilled in the art can devise other obvious variations. The basic principles of the present invention defined in the following description can be applied to other embodiments, variations, improvements, equivalents and other technical solutions without departing from the spirit and scope of the present invention.
[0072] Those skilled in the art should understand that in the disclosure of the present invention, the terms "vertical", "transverse", "upper", "lower", "front", "rear", "left", "right", " The orientation or positional relationship indicated by "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, which are only for the convenience of describing the present invention...
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The invention discloses a multi-line laser radar system, a multi-line laser radar device and method thereof. The multi-line laser radar system comprises a rotating unit, a transmitting unit and a receiving unit, wherein the transmitting unit is arranged on the rotating unit and used for rotating around the rotating shaft of the rotating unit under the driving of the rotating unit, and comprises at least one laser emitting module used for emitting a laser beam, and a light splitting module arranged on the emission path of the laser emission module and used for carrying out light splitting processing on the laser beam so as to generate a group of laser split beams, the receiving unit is arranged on the rotating unit, is used for rotating around the rotating shaft under the driving of the rotating unit, and comprises a group of laser receiving modules, and the laser receiving modules are in one-to-one correspondence with the laser split beams and are used for receiving reflected or scattered laser echoes.
Description
technical field [0001] The invention relates to the technical field of radar, in particular to a multi-line laser radar system, a multi-line laser radar device and a method thereof. Background technique [0002] Lidar is a radar system that detects the position, speed and other characteristic quantities of the target by emitting laser beams. After comparing the laser echo (that is, the echo signal) with the transmitted signal, and 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] At present, on-board assistance systems or unmanned autonomous vehicles need to sense the environment around the vehicle at any time to obtain information about roads, vehicle posture and other obstacles, which are used to guide and control the steering and speed of the vehicle. On-board auxiliary systems or unmanned vehicles usually use multi-line lidar to detect t...
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IPC IPC(8): G01S7/481
CPCG01S7/481G01S7/4817
Inventor 潘锋章炳刚李斌鲁丁
Owner ZHEJIANG SUNNY INTELLIGENT OPTICAL TECH CO LTD