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    Structured field map generation for inventory system
    1.
    发明授权
    Structured field map generation for inventory system 有权

    公开(公告)号：US12145800B1

    公开(公告)日：2024-11-19

    申请号：US17104914

    申请日：2020-11-25

    Applicant: Amazon Technologies, Inc.

    Inventor： Aayush Aggarwal ,  Vishnu R. Ayyagari

    IPC: B65G1/04 ,  B65G1/16 ,  G05D1/00

    Abstract: Aspects described herein include a computer-implemented method of generating a floor plan for use by a plurality of mobile drive units within an inventory system. The method comprises defining a grid according to predefined grid rules, placing inventory station blocks, placing predefined travel blocks, and placing predefined storage blocks. Predefined connection rules specify which faces of the different predefined blocks are permitted to connect. The method further comprises outputting a map representing the floor plan. The map comprises location information for fiducial markers corresponding to the predefined blocks.

    Nondisruptive workspace representation deployment for inventory systems
    2.
    发明授权
    Nondisruptive workspace representation deployment for inventory systems 有权

    公开(公告)号：US10860978B1

    公开(公告)日：2020-12-08

    申请号：US15796491

    申请日：2017-10-27

    Applicant: Amazon Technologies, Inc.

    Inventor： Aayush Aggarwal ,  Michael T. Barbehenn ,  James Plumley ,  Le Zou

    IPC: G06F7/00 ,  G06D1/00 ,  G06D1/02 ,  G06Q10/08 ,  G06K7/10 ,  G05B19/418

    Abstract: Systems and methods described herein pertain to maintaining a virtual representation of a workspace in a material handling system and updating the virtual representation without downtime. Methods described include maintaining an initial virtual representation of a material handling grid, receiving an updated virtual representation, and generating and implementing an intermediate virtual representation that does not conflict with the initial virtual representation. Methods further include, upon determining that the intermediate virtual representation is performing without conflicts, deploying the updated virtual representation to replace the intermediate virtual representation without halting operations in the workspace. Multiple intermediate virtual representations can be generated to allow for complex changes, and the deployments performed in series.

    Techniques for obstacle detection and avoidance
    5.
    发明授权
    Techniques for obstacle detection and avoidance 有权

    公开(公告)号：US11126944B1

    公开(公告)日：2021-09-21

    申请号：US16271334

    申请日：2019-02-08

    Applicant: Amazon Technologies, Inc.

    Inventor： Aayush Aggarwal ,  Vishnu Ayyagari ,  James Plumley

    IPC: G06Q10/06 ,  G06F9/50 ,  G06Q10/08 ,  G05D1/02 ,  G05D1/00 ,  G01C21/20 ,  G01C21/34

    Abstract: Systems and methods are provided herein for obstacle detection and avoidance. An obstacle (e.g., a fallen object, an area of congestion, etc.) may be detected utilizing sensor data and/or navigational information provided by various components of a workspace (e.g., mobile drive units, standalone sensors, etc.). Obstacle information corresponding to the obstacle may be utilized to identify tasks within the workspace that may be affected by the obstacle. Paths for these affected tasks may be altered and any subsequent path generated by the system may be generated based at least in part on the obstacle, so long as the obstacle exists. Utilizing the techniques provided herein, the workflows/tasks/paths of the components of the system may be managed so as to avoid interactions between the components of the system and any known obstacle.

    Techniques for detecting and managing congestion within a workspace
    6.
    发明授权
    Techniques for detecting and managing congestion within a workspace 有权

    公开(公告)号：US11113777B1

    公开(公告)日：2021-09-07

    申请号：US16271200

    申请日：2019-02-08

    Applicant: Amazon Technologies, Inc.

    Inventor： Aayush Aggarwal ,  Vishnu Ayyagari ,  James Plumley

    IPC: G06Q50/28 ,  G06Q10/06 ,  G01C21/20 ,  G05D1/02 ,  G01C21/34 ,  G05D1/00

    Abstract: Systems and methods are provided herein for detecting congestion within a workspace. Historical navigational data may be obtained that indicates a number of locations for mobile drive units of the workspace over various historical time periods. Planned path data for each MDU may be obtained, the planned path data may indicate planned paths of travel for each MDU. A grid of overlapping volumes may be generated for the workspace and each instance of historical navigational data and/or planned path data may be utilized to map historical and/or future locations of the MDUs to corresponding volumes of the grid. A protocol set may be implemented to detect congested volumes based at least in part on the historical navigational data and/or the planned path data for each volume of the grid over one or more time periods. In response to detecting a congested volume, one or more remedial actions may be performed.

    Rapid workspace representation deployment for inventory systems
    8.
    发明授权
    Rapid workspace representation deployment for inventory systems 有权

    公开(公告)号：US10755227B1

    公开(公告)日：2020-08-25

    申请号：US15691316

    申请日：2017-08-30

    Applicant: Amazon Technologies, Inc.

    Inventor： Aayush Aggarwal ,  Vishnu Ayyagari ,  Matthew Paul Bell ,  Sarfraz Banglawala ,  James Plumley

    IPC: G06Q10/08 ,  G05D1/02

    Abstract: Systems and methods described herein pertain to maintaining a virtual representation of a workspace in a material handling system and updating the virtual representation. Methods described include maintaining the virtual representation of a material handling grid, maintaining one or more clients operable to direct movement of the plurality of drive units in the workspace; receiving an instruction to update the virtual representation of the drive-unit navigable grid including an updated virtual representation of the workspace; and querying a subset of the one or more clients to determine whether the update to the virtual representation would cause one conflicts within the workspace. Potential conflicts include, but are not limited to, “stranded” resources which are no longer positioned on the material handling grid, and/or workstations that have not yet been suspended prior to the update. Methods further include, upon determining that the updated virtual representation would not cause a conflict, deploying the updated virtual representation to replace an existing virtual representation of the workspace.

    Managing operations of a mobile drive unit within a workspace based on a fire-based policy
    9.
    发明授权
    Managing operations of a mobile drive unit within a workspace based on a fire-based policy 有权

    公开(公告)号：US10591931B1

    公开(公告)日：2020-03-17

    申请号：US15788587

    申请日：2017-10-19

    Applicant: Amazon Technologies, Inc.

    Inventor： Aayush Aggarwal ,  Ryan Clarke ,  Anatoly Mitlin ,  James Plumley ,  Gregory Edward Tierney ,  Steven Augustine Wilson

    IPC: G05D1/02 ,  G05D1/00

    Abstract: Techniques for controlling movement of a mobile drive unit within a workspace are described. In an example, a system may access a map of the workspace. The map defines a policy for the movement of the mobile drive unit within the workspace based on a volume of the workspace associated with a fire shutter. The fire shutter is located within the workspace and is operable to manage a spread of a fire within the workspace. The system may generate at least a portion of a movement path for the mobile drive unit within the workspace based on the map and on an event for transporting material from a location in the workspace. The portion of the movement path is in compliance with the policy defined in the map. The system provides at least the portion of the movement path to the mobile drive unit over a data network.

    Managing low-frequency inventory items in a fulfillment center
    10.
    发明授权
    Managing low-frequency inventory items in a fulfillment center 有权
    管理履行中心的低频库存物品

    公开(公告)号：US09487356B1

    公开(公告)日：2016-11-08

    申请号：US14635964

    申请日：2015-03-02

    Applicant: Amazon Technologies, Inc.

    Inventor： Aayush Aggarwal

    IPC: G06Q10/08 ,  G05B15/02 ,  B65G1/137 ,  B64C39/02 ,  B65G1/04

    CPC classification number: B65G1/16 ,  B64C39/024 ,  B65G1/0464 ,  B65G1/137 ,  B65G1/1371 ,  B65G1/1373 ,  B65G1/1375 ,  G05B15/02 ,  G05D1/102 ,  G05D2201/0216 ,  G06Q10/087

    Abstract: The disclosed inventory system and methods can be used to improve access time to less frequently accessed inventory items. Specifically, a mobile drive unit may be selected from a plurality of mobile drive units to retrieve or store an inventory item based on a density of the storage location of the inventory item and/or an estimated cost (e.g., estimated time) associated with the retrieval or storage of the inventory item. For instance, an overhead drive unit may be selected over a ground drive unit to retrieve inventory items from or store inventory items to densely-packed storage areas. As another example, an overhead drive unit may be selected over a ground drive unit when the cost of using the ground drive unit exceeds a threshold value.

    Abstract translation: 所披露的库存系统和方法可用于改进对较不频繁访问的库存项目的访问时间。 具体而言，可以从多个移动驱动单元中选择移动驱动单元，以基于库存项目的存储位置的密度和/或与该库存项目相关联的估计成本（例如，估计时间）来检索或存储库存项目 检索或存储库存项目。 例如，可以通过地面驱动单元选择架空驱动单元以从库存物品检索库存物品或将库存物品存储到密集存储区域。 作为另一示例，当使用接地驱动单元的成本超过阈值时，可以通过地面驱动单元选择架空驱动单元。

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