High-detection efficiency VCSEL (vertical-cavity surface-emitting laser) array chaotic laser radar device for driverless automobiles

A technology of unmanned vehicles and chaotic lasers, which is applied in the direction of measuring devices, radio wave measurement systems, and the use of re-radiation, can solve problems that have not been specifically applied in the anti-jamming field of unmanned vehicles, and achieve improved anti-jamming performance and increased The effect of high light output efficiency and simple structure

Active Publication Date: 2019-06-07
TAIYUAN UNIV OF TECH
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Problems solved by technology

[0008] In order to solve the problem that VCSEL has not been specifically applied to the anti-jamming field of unmanned vehicle

Method used

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  • High-detection efficiency VCSEL (vertical-cavity surface-emitting laser) array chaotic laser radar device for driverless automobiles
  • High-detection efficiency VCSEL (vertical-cavity surface-emitting laser) array chaotic laser radar device for driverless automobiles
  • High-detection efficiency VCSEL (vertical-cavity surface-emitting laser) array chaotic laser radar device for driverless automobiles

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[0020] Specific embodiments of the present invention will be described below with reference to the accompanying drawings.

[0021] A high detection efficiency VCSEL array chaotic lidar device for driverless cars, such as figure 1 and figure 2As shown: including a signal transmission module 100, an optical path adjustment module 110, a signal reception module 120 and a data processing module 130, the signal transmission module 100 transmits the optical path data into the optical path adjustment module 110, and the optical path adjustment module 110 will adjust the adjusted The optical path data is transmitted to the signal receiving module 120 , and the signal receiving module 120 finally transmits the data to the data processing module 130 . The signal receiving module 120 includes a converging optical lens array I10 and a photodetector array I11, a converging optical lens array II12 and a photodetector array II13; the data processing module 130 includes a digital correlator...

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Abstract

The invention discloses a high-detection efficiency VCSEL (vertical-cavity surface-emitting laser) array chaotic laser radar device for driverless automobiles and belongs to the technological field ofthe application of laser radars to driverless automobiles. The device comprises a signal transmitting module, an optical path adjusting module, a signal receiving module and a data processing module;the signal transmitting module transmits optical path data to the optical path adjusting module; the optical path adjusting module transmits adjusted optical path data to the signal receiving module;and finally the data are transmitted to the data processing module. According to the signal transmitting module, a plurality of VCSELs are adopted to form array units, and then the array units form an array combination, so that the plurality of VCSEL lasers can be driven at a time, and therefore, the quantity of acquired information and measurement speed can be greatly improved, light extractionefficiency can be increased, and the detection efficiency of object detection can be improved; and the signal transmitting module is simple and compact in structure and is easy in array integration, and therefore, the size of the on-board laser radar can be greatly reduced, broadband chaotic signals also effectively realize anti-interference performance, and ranging accuracy can be improved.

Description

technical field [0001] The invention belongs to the technical field of laser radar application in unmanned vehicles, in particular to a high detection efficiency VCSEL array chaotic laser radar device for unmanned vehicles. Background technique [0002] With the progress of society and the rapid development of highway transportation system, unmanned vehicles have shown a momentum of rapid development. LiDAR accounts for 90% of the applications in the driverless car market. Lidar has many advantages such as small error, fast ranging speed, wide measurement range, strong robustness, and no influence of environmental illumination, and has been widely used. With the rapid development of unmanned driving technology, the formation of unmanned traffic network is no longer far away. How to avoid the interference of unmanned vehicles through lidar is still an unresolved problem. Speed ​​also puts forward higher requirements. [0003] At present, most of the widely used laser radar...

Claims

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Application Information

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IPC IPC(8): G01S17/93G01S17/89G01S7/481
CPCY02A90/10
Inventor 王安帮赵彤郭园园王龙生贾志伟吴梅王云才高华
Owner TAIYUAN UNIV OF TECH
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