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Light detection and range (LIDAR) device for autonomous driving vehicles

A distance measuring device, the technology of automatic driving

Pending Publication Date: 2020-07-07
BAIDU USA LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is also difficult to align the received light at the receiver
Given that a LIDAR device can have multiple transmitter and receiver pairs, this makes alignment more difficult and the physical size even larger

Method used

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  • Light detection and range (LIDAR) device for autonomous driving vehicles
  • Light detection and range (LIDAR) device for autonomous driving vehicles
  • Light detection and range (LIDAR) device for autonomous driving vehicles

Examples

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Embodiment Construction

[0031] Various embodiments and aspects of the disclosure will be described with reference to details discussed below and illustrated in the accompanying drawings. The following description and drawings are illustrative of the present disclosure and should not be construed as limiting the present disclosure. Numerous specific details are described to provide a thorough understanding of various embodiments of the present disclosure. However, in certain instances, well-known or conventional details are not described in order to provide a concise discussion of embodiments of the present disclosure.

[0032] Reference in this specification to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the present disclosure. The appearances of the phrase "in one embodiment" in various places in this specification are not necessarily all referring to the s...

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PUM

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Abstract

In one embodiment, a light detection and range (LIDAR) device includes an array of light transmitting and receiving (TX / RX) units arranged to sense a physical range associated with a target. Each of the light TX / RX units includes a mounting board having a light pass-through opening and a light emitter mounted adjacent to the light pass-through opening. The light emitter is configured to emit a light beam towards the target according to a transmitting path. The LIDAR device further includes a light detector positioned behind the mounting board to receive at least a portion of the light beam reflected from the target through the light pass-through opening according to a light receiving path. The light transmitting path and the light receiving path are substantially in parallel and close to each other.

Description

technical field [0001] Embodiments of the present disclosure generally relate to operating an autonomous vehicle. More specifically, embodiments of the present disclosure relate to LIDAR devices used in autonomous vehicles. Background technique [0002] Vehicles operating in an autonomous mode (eg, driverless) can relieve the occupants, especially the driver, from some driving-related duties. When operating in autonomous mode, the vehicle can navigate to various locations using on-board sensors, allowing the vehicle to drive with minimal human interaction or in some situations without any passengers. [0003] LIDAR technology has been widely used in military, geography, oceanography, and in the last decade for autonomous vehicles. Among other things, the adoption of LIDAR on autonomous vehicles has been hindered by high costs. A LIDAR device may estimate distances to objects as it scans a scene to assemble a point cloud representing the object's reflective surfaces. Indi...

Claims

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Application Information

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IPC IPC(8): G01S7/484G01S7/486G01S17/48G01S17/931G01C21/28G01C21/34G01S19/47
CPCG01S7/484G01S7/486G01S17/48G01C21/28G01C21/34G01S19/47G01S17/931G01S17/86G01S13/865G01S2013/9318G01S2013/93185G01S2013/9319G01S17/87G01S15/931G01S2013/9316G01S7/4813G01S13/931G01S7/4812
Inventor 孙天佳申耀明周翔飞韩阳
Owner BAIDU USA LLC
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