Laser radar and its control method and automatic driving device

A technology of laser radar and laser, which is applied in the field of laser detection, can solve problems such as inability to meet detection requirements, achieve the effect of meeting diversified detection requirements, small divergence angle, and improving ranging distance and angular resolution

CN110632618BActive Publication Date: 2020-11-27SUTENG INNOVATION TECH CO LTD
7 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2020-11-27

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The embodiment of the invention relates to the technical field of laser detection, and discloses a laser radar, a control method thereof and an automatic driving device. The laser radar comprises a first transceiving module for transmitting first exiting laser and receiving first reflected laser; a first scanning module for deflecting the first exiting laser and for receiving the first reflected laser, deflecting the first reflected laser and emitting the deflected laser to the first transceiving module; a beam expanding module for expanding and collimating the first exiting laser passing through the first scanning module and emitting the first exiting laser to a first detection area, and for converging the received first reflected laser in a beam shrinking manner and emitting the first reflected laser to the first scanning module; a second transceiving module for transmitting second exiting laser and receiving second reflected laser; and a second scanning module for enabling the second exiting laser to emit to a second detection area, and for receiving the second reflected laser, deflecting the second reflected laser and emitting the second reflected laser to the second transceiving module. Through the mode disclosed by the embodiment of the invention, the ranging capability of the laser radar is improved.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] Embodiments of the present invention relate to the technical field of laser detection, and in particular to a laser radar, a control method thereof, and an automatic driving device. Background technique

[0002] Lidar has the advantages of high precision and high resolution, and at the same time can obtain the surrounding three-dimensional point cloud information, which has become an indispensable key sensor for future autonomous driving. Compare the received reflected laser light reflected from the object in the detection area with the outgoing laser light to obtain the relevant information of the object's distance, speed, orientation, etc.

[0003] Among them, the laser radar conducts a comprehensive detection of the entire field of view during the detection process. But in the center of the field of view, or the area where some specific objects are located, it is often necessary to "see" clearer and farther, so lidar needs to have higher resolution...

Examples

Embodiment Construction

[0050] Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the drawings, it should be understood that the invention may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0051] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in the present invention shall have the usual meanings understood by those skilled in the art to which the present invention belongs.

[0052] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Back", "Left", "Right",...