Multiline laser radar distance measuring system and method thereof

A radar ranging and radar system technology, applied in the field of multi-line lidar ranging systems, can solve problems such as small scanning angle

Inactive Publication Date: 2017-01-04
LEISHEN INTELLIGENT SYST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The embodiment of the present invention provides a multi-line laser rada...

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  • Multiline laser radar distance measuring system and method thereof
  • Multiline laser radar distance measuring system and method thereof
  • Multiline laser radar distance measuring system and method thereof

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Embodiment 1

[0016] Such as figure 1 As shown, the present invention provides a multi-line laser radar ranging system, including a control and signal processing system, a transmitting system and a receiving system, and the transmitting system includes: successively connected laser transmitting modules and a first lens group; The receiving system includes: a second lens group connected in sequence and a photoelectric detector; the radar system also includes a motor; a control and signal processing system, which is used to control the power on of the motor, and the motor drives the transmitting system and receiving system on it to rotate; The transmitting module is used to emit at least two or more laser beams according to the control signal of the control and signal processing system; the first lens group is used to collimate the two or more laser beams and then emit them to scan the target object; the second lens The group is used to receive the laser light reflected by the target object a...

Embodiment 2

[0038] The embodiment of the present invention also provides a multi-line laser radar ranging method, including: the control and signal processing system controls the motor to be powered on, and the motor drives the transmitting system and receiving system on it to rotate; the transmitting system, according to the control and signal processing system The control signal emits at least two or more laser beams, collimates the two or more laser beams and emits them to scan the target object; the receiving system receives the laser light reflected back from the target object, and performs the two or more laser beams reflected back. After collimation, photoelectric conversion and amplification processing are carried out, and then sent to the control and signal processing system to calculate the distance of the target object.

[0039] In summary, the present invention provides a "hybrid solid-state" multi-line laser radar ranging system and method. The feature of the laser radar syste...

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Abstract

The invention applies to the field of laser radar and provides a multiline laser radar distance measuring system and a method thereof. The system comprises a controlling and signal processing system, an emitting system and a receiving system. The emitting system comprises laser emitting modules connected in sequence and a first lens group; the receiving system comprises a second lens group connected in sequence and a photoelectric detector; the radar system further comprises a motor. To sum up, the multiline laser radar distance measuring system can emit a plurality of beams of light to conduct obstacle detection of rugged terrains. The detection is based on a laser time-of-flight method, wherein an optical path is obtained by calculating and modulating the time difference between laser emitting and returning to further obtain the distance of the measured object. The vertical angle of view of the system is from +15 to -15 degrees, the horizontal angle of view is 360 degrees, and the measured distance can reach over 100 meters with 300,000 3D point cloud data per second.

Description

technical field [0001] The invention belongs to the field of laser radar, in particular to a multi-line laser radar ranging system and method. Background technique [0002] In recent years, the research and application of mobile robots, autonomous navigation vehicles, and assisted driving of vehicles has been increasing. Single-line two-dimensional laser radar has been widely used in obstacle detection systems indoors and outdoors due to its high ranging accuracy and angular resolution. . However, since it has only one laser beam scanning plane, and obstacle points are defined as scanning points above the ground level, single-line two-dimensional lidar is only suitable for relatively flat road surfaces. [0003] The LMS1XX series products of German sick company adopt a similar structure. Among them, the measuring range of LMS1XX series products is 50 meters, the scanning angle is 270 degrees, and one-line scanning. German IBEO LUX 4-line laser radar, 4-line scanning, detec...

Claims

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Application Information

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IPC IPC(8): G01S17/08
CPCG01S17/08
Inventor 胡小波段佩华王勇
Owner LEISHEN INTELLIGENT SYST CO LTD
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