Lidar system and method

a technology of sliding system and sliding beam, applied in the field of sliding system and method, can solve the problems of non-uniform spacing of slots along the vertical direction, and achieve the effects of improving spatial resolution, increasing the size of the overall system, and a greater field of view

US20190302235A1Active Publication Date: 2019-10-03HESAI TECH CO LTD
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Patent Information

Authority / Receiving Office
US · United States
Patent Type
Applications(United States)
Current Assignee / Owner
Publication Date
2019-10-03

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Abstract

A Lidar system is provided. The Lidar system comprises: a set of light sources configured to emit a plurality of light beams; a set of optical fiber elements, wherein each of the set of light sources is optically coupled to a first end of one or more optical fiber elements from the set of optical fiber elements; and at least one mounting unit comprising a structure configured to receive a second end of the set of optical fiber elements at one or more directions thereby affecting a direction of the plurality of light beams individually.
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Description

CROSS-REFERENCE

[0001] This application is a continuation application of International PCT Application No. PCT / CN2018 / 086768, filed May 14, 2018, which claims priority to Chinese Application No. 201810291177.X, filed Apr. 3, 2018, each of which is entirely incorporated herein by reference.BACKGROUND OF THE INVENTION

[0002] Lidar technology can be used to obtain three-dimensional information of an environment by measuring distances to objects. A Lidar system may include at least a light source configured to emit a pulse of light and a detector configured to receive returned pulse of light. The returned pulse of light or light beam may be referred to as echo light beam. Based on the lapse time between the emission of the pulse of light and detection of returned pulse of light (i.e., time of flight), a distance can be obtained. The pulse of light can be generated by a laser emitter then focused through a lens or lens assembly. The returned pulse of light may be received by a detector locat...

Examples

Embodiment Construction

[0039]While preferable embodiments of the invention have been shown and described herein, it will be obvious to those skilled in the art that such embodiments are provided by way of example only. Numerous variations, changes, and substitutions will now occur to those skilled in the art without departing from the invention. It should be understood that various alternatives to the embodiments of the invention described herein may be employed in practicing the invention.

[0040]Lidar is a type of ranging sensor characterized by long detection distance, high resolution, and low interference by the environment. Lidar has been widely applied in the fields of intelligent robots, unmanned aerial vehicles, autonomous driving or self-driving. The working principle of Lidar is estimating a distance based on a round trip time of electromagnetic waves between a source and a target.

[0041]Multiline Lidar has been increasingly used in research and commercial applications. In a multiline Lidar system,...