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公开(公告)号：US20220138908A1
公开(公告)日：2022-05-05
申请号：US17578750
申请日：2022-01-19
Applicant: SZ DJI TECHNOLOGY CO., LTD.
Abstract: Correcting motion-based inaccuracy in point cloud data generated by one or more sensors carried by a scanning platform, and associated systems and methods are disclosed herein. A representative method includes associating a motion model with a target object of the point cloud, estimating adjusting factors based on the motion model, and adjusting scanning points in the point cloud using the adjusting factors.
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公开(公告)号：US20210255329A1
公开(公告)日：2021-08-19
申请号：US17239522
申请日：2021-04-23
Applicant: SZ DJI TECHNOLOGY CO., LTD.
Inventor： Wei LI , Yongjie HUANG , Shaojie SHEN , Lu MA
IPC: G01S17/931 , G01S17/894 , G01S17/10
Abstract: The present disclosure provides an environment sensing system. The sensing system includes a laser detection module, the laser detection module including a first laser module, a second laser module, a third laser module, and a fourth laser module, a field of view (FOV) angle of each laser module being less than or equal to 120°. The first laser module and the second laser module are disposed on a front side of a movable platform to detect an area in front of the movable platform, the FOVs of the first laser module and the second laser module partially overlap. The third laser module and the fourth laser module are respectively disposed on both sides of the movable platform to detect a front left area and a front right area of the movable platform.
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公开(公告)号：US20200349727A1
公开(公告)日：2020-11-05
申请号：US16935790
申请日：2020-07-22
Applicant: SZ DJI TECHNOLOGY CO., LTD.
Inventor： Ang LIU , Litian ZHANG , Lu MA
IPC: G06T7/50 , G06T7/73 , B64C39/02 , G01S17/894
Abstract: The present disclosure provides an obstacle detection method. The method includes acquiring a first type of grid including obstacle indication information; determining a corresponding project position of the first type of grid in a first depth image; acquiring a first distance between a mobile platform and the corresponding projection position and a second distance between the mobile platform and an obstacle, the obstacle being the obstacle detected based on the first depth image; and updating the obstacle indication information of the first type of grid based on the first distance and the second distance.
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Patent Agency Ranking
公开(公告)号：US20200064483A1
公开(公告)日：2020-02-27
申请号：US16664204
申请日：2019-10-25
Applicant: SZ DJI TECHNOLOGY CO., LTD.
Abstract: An autonomous driving assembly for a vehicle includes a plurality of lidar units configured to be supported by a vehicle body. The lidar units are collectively configured to detect a periphery region in proximity to the vehicle body to aid in autonomous driving upon coupling the driving assembly to the vehicle body. Each of the plurality of lidar units has a field of view of less than about 180 degrees.
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公开(公告)号：US20210365038A1
公开(公告)日：2021-11-25
申请号：US17395785
申请日：2021-08-06
Applicant: SZ DJI TECHNOLOGY CO., LTD.
Inventor： Lu MA , Shaojie SHEN
Abstract: Local sensing based navigation maps can form a basis for autonomous navigation of a mobile platform. An example method includes obtaining real-time environment information that indicates an environment within a proximity of the mobile platform based on first sensor(s) carried by the mobile platform, detecting navigation features based on sensor data obtained from the first sensor(s) or second sensor(s) carried by the mobile platform, integrating information corresponding to the navigation features with the environment information to generate a local navigation map, and generating navigation command(s) for controlling a motion of the mobile platform based on the local navigation map.
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公开(公告)号：US20210318444A1
公开(公告)日：2021-10-14
申请号：US17353779
申请日：2021-06-21
Applicant: SZ DJI TECHNOLOGY CO., LTD.
IPC: G01S17/931 , G01S17/86 , G01S13/42 , G01S13/931 , G01S17/89 , G05D1/02 , H01Q1/32 , H04L29/08
Abstract: An autonomous driving assembly for a vehicle includes a plurality of lidar groups supported by a vehicle body of the vehicle and collectively configured to detect a periphery region in proximity to the vehicle body. Different ones of the plurality of lidar groups are supported at different areas of the vehicle body and have different group fields of view. At least two of the different group fields of view overlap with each other. Each of the plurality lidar groups includes a plurality of lidar units fixed at a same location. Different ones of the plurality of lidar units have different unit fields of view. At least two of the different unit fields of view overlap with each other.
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公开(公告)号：US20210181348A1
公开(公告)日：2021-06-17
申请号：US17187723
申请日：2021-02-26
Applicant: SZ DJI TECHNOLOGY CO., LTD.
Inventor： Guofang ZHANG , Shaojie SHEN , Lu MA
Abstract: The present disclosure provides a method for controlling a lidar device. The method includes obtaining a first irradiation amount or a first irradiance generated by the lidar device on a laser irradiated object; and controlling the lidar device based on the first irradiation amount or the first irradiance.
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公开(公告)号：US20200057160A1
公开(公告)日：2020-02-20
申请号：US16664331
申请日：2019-10-25
Applicant: SZ DJI TECHNOLOGY CO., LTD.
Abstract: A light detection and ranging (LIDAR) based object tracking system includes a plurality of light emitter and sensor pairs and an object tracker. Each pair of the plurality of light emitter and sensor pairs is operable to obtain data indicative of actual locations of surrounding objects. The data is grouped into a plurality of groups by a segmentation module. Each group corresponds to one of the surrounding objects. The object tracker is configured to (1) build a plurality of models of target objects based on the plurality of groups, (2) compute a motion estimation for each of the target objects, and (3) feed a subset of data back to the segmentation module for further grouping based on a determination by the object tracker that the subset of data fails to map to a corresponding target object in the model.
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