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公开(公告)号：US20190383918A1
公开(公告)日：2019-12-19
申请号：US16460811
申请日：2019-07-02
Applicant: SZ DJI TECHNOLOGY CO., LTD.
Inventor： Ke Wang , Chenghui Long , Xiaoping Hong
Abstract: Techniques, systems, and devices relating to conducting calibration of LIDAR systems are disclosed. In one exemplary aspect, a light detection and ranging (LIDAR) device is disclosed. The device comprises a light beam emitter operable to emit a light beam; a prism set positioned in an optical path of the light beam to refract the light beam onto a surface of a surrounding object; a light detector to detect light reflected by the surface of the surrounding object; a controller configured to estimate the surface of the surrounding object based on the detected light. The controller is operable to (1) determine a relative bias in the prism set, and (2) cause, based on the relative bias in the prism set, a compensation for an estimation error in the controller's estimation of the surface of the surrounding object.
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Patent Agency Ranking
公开(公告)号：US20190302247A1
公开(公告)日：2019-10-03
申请号：US16374248
申请日：2019-04-03
Applicant: SZ DJI TECHNOLOGY CO., LTD.
Inventor： Ke Wang , Chenghui Long , Xiaoping Hong
Abstract: Techniques, systems, and devices relating to conducting calibration of LIDAR systems are disclosed. In one exemplary aspect, a light detection and ranging (LIDAR) device is disclosed. The device comprises a light beam emitter operable to emit a light beam; a prism set positioned in an optical path of the light beam to refract the light beam onto a surface of a surrounding object; a light detector to detect light reflected by the surface of the surrounding object; a controller configured to estimate the surface of the surrounding object based on the detected light. The controller is operable to (1) determine a relative bias in the prism set, and (2) cause, based on the relative bias in the prism set, a compensation for an estimation error in the controller's estimation of the surface of the surrounding object.
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公开(公告)号：US10698092B2
公开(公告)日：2020-06-30
申请号：US16460811
申请日：2019-07-02
Applicant: SZ DJI TECHNOLOGY CO., LTD.
Inventor： Ke Wang , Chenghui Long , Xiaoping Hong
IPC: G01S7/497 , G01S7/4861 , G01C3/08 , G01S17/42 , G01S7/481
Abstract: Techniques, systems, and devices relating to conducting calibration of LIDAR systems are disclosed. In one exemplary aspect, a light detection and ranging (LIDAR) device is disclosed. The device comprises a light beam emitter operable to emit a light beam; a prism set positioned in an optical path of the light beam to refract the light beam onto a surface of a surrounding object; a light detector to detect light reflected by the surface of the surrounding object; a controller configured to estimate the surface of the surrounding object based on the detected light. The controller is operable to (1) determine a relative bias in the prism set, and (2) cause, based on the relative bias in the prism set, a compensation for an estimation error in the controller's estimation of the surface of the surrounding object.
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公开(公告)号：US20180313941A1
公开(公告)日：2018-11-01
申请号：US15785358
申请日：2017-10-16
Applicant: SZ DJI TECHNOLOGY CO., LTD.
Inventor： Ke Wang , Chenghui Long , Xiaoping Hong
CPC classification number: G01S7/497 , G01C3/08 , G01S7/4817 , G01S7/4861 , G01S7/4972 , G01S17/42
Abstract: Techniques, systems, and devices relating to conducting calibration of LIDAR systems are disclosed. In one exemplary aspect, a light detection and ranging (LIDAR) device is disclosed. The device comprises a light beam emitter operable to emit a light beam; a prism set positioned in an optical path of the light beam to refract the light beam onto a surface of a surrounding object; a light detector to detect light reflected by the surface of the surrounding object; a controller configured to estimate the surface of the surrounding object based on the detected light. The controller is operable to (1) determine a relative bias in the prism set, and (2) cause, based on the relative bias in the prism set, a compensation for an estimation error in the controller's estimation of the surface of the surrounding object.
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公开(公告)号：US20210286079A1
公开(公告)日：2021-09-16
申请号：US17333573
申请日：2021-05-28
Applicant: SZ DJI TECHNOLOGY CO., LTD.
Inventor： Xiang Liu , Xiaoping Hong , Fu Zhang , Han Chen , Chenghui Long , Xiaofeng Feng
IPC: G01S17/87 , G01S17/931 , G05D1/02 , G01S7/00
Abstract: Disclosed herein are techniques for implementing a distributed sensor (LIDAR) system with a management system (e.g., a controller) that controls and interfaces with multiple sensors in the distributed sensor system. A representative management system can control an operational state (e.g., power on, reset, over-current protection, etc.), an operating mode (e.g., modes corresponding to varying levels of performance), etc. The management system can combine separate outputs from the individual sensors into a combined output (e.g., point cloud). The management system can assist installation of the sensors, manage a self-test and/or a self-calibration of the sensors, or a combination thereof.
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公开(公告)号：US10295659B2
公开(公告)日：2019-05-21
申请号：US15785358
申请日：2017-10-16
Applicant: SZ DJI TECHNOLOGY CO., LTD.
Inventor： Ke Wang , Chenghui Long , Xiaoping Hong
Abstract: Techniques, systems, and devices relating to conducting calibration of LIDAR systems are disclosed. In one exemplary aspect, a light detection and ranging (LIDAR) device is disclosed. The device comprises a light beam emitter operable to emit a light beam; a prism set positioned in an optical path of the light beam to refract the light beam onto a surface of a surrounding object; a light detector to detect light reflected by the surface of the surrounding object; a controller configured to estimate the surface of the surrounding object based on the detected light. The controller is operable to (1) determine a relative bias in the prism set, and (2) cause, based on the relative bias in the prism set, a compensation for an estimation error in the controller's estimation of the surface of the surrounding object.
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