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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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Patent Agency Ranking
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：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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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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公开(公告)号：US20170052963A1
公开(公告)日：2017-02-23
申请号：US15299271
申请日：2016-10-20
Applicant: SZ DJI TECHNOLOGY Co., LTD
Inventor： Ke Wang , Qiang Zhang , Wei Tuo , Taiwen Liang
IPC: G06F17/30
Abstract: The invention provides systems, methods, and devices related to writing and reading a file. A block area having a plurality of idle storage blocks is provided. Each idle block of said plurality of idle storage blocks is associated with a block identifier of a plurality of block identifiers. Additionally, each block identifier of the plurality of block identifiers is listed in a block index. Each block identifier has content that stores a unique block identifier of the plurality of block identifiers that links the block identifier with the unique block identifier, thereby linking the plurality of block identifiers.
Abstract translation: 本发明提供了与写入和读取文件相关的系统，方法和设备。 提供具有多个空闲存储块的块区域。 所述多个空闲存储块的每个空闲块与多个块标识符的块标识符相关联。 此外，多个块标识符的每个块标识符被列在块索引中。 每个块标识符具有存储将块标识符与唯一块标识符链接的多个块标识符的唯一块标识符的内容，从而链接多个块标识符。
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