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公开(公告)号：US11868956B1
公开(公告)日：2024-01-09
申请号：US16455401
申请日：2019-06-27
Applicant: Amazon Technologies, Inc.
Inventor： Michael Dillon , Charles Winn Degranville , Paul Aksenti Savastinuk , Amit Dekate , Michael L Sandige , Scott Brown , Paul Eugene Munger , Matthew Scott Wilding
IPC: G06Q10/087 , G06F17/18 , G06F9/54
CPC classification number: G06Q10/087 , G06F9/542 , G06F17/18 , G06F2218/00
Abstract: Systems and techniques for detecting events involving a user that occurred during a session in a facility, and performing a holistic, session-based analysis of the events to determine items taken by the user from the facility. An inventory management system may initially analyze the events to determine a hypothesis for a result of each respective event and a probability that the hypotheses are accurate. An initial listing of the items determined to be taken by the user may be generated along with probabilities that the items were taken. Upon determining that a probability an item was taken is lower than a threshold, the management system may select an algorithm to process an event in the session that is likely to resolve uncertainty in the initial listing. The management system may iteratively process events until a final listing represents the items taken by the user with an allowable probability.
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公开(公告)号：US11636424B1
公开(公告)日：2023-04-25
申请号：US16747183
申请日：2020-01-20
Applicant: AMAZON TECHNOLOGIES, INC.
Inventor： Paul Eugene Munger
IPC: G06Q10/08 , G06Q10/087 , G06Q20/00
Abstract: Load cells are used in a fixture of a facility to acquire weight data. However, some of the load cells used in the fixture may fail. One way to test a subset of load cells is to compare data from a first subset of load cells to a second subset of load cells using a linear regression. For example, the linear regression may help determine predicted values for the first subset of load cells. Actual values from the first subset of load cells are then compared to the predicted values. If the differences between the actual values and predicted values for the first subset of load cells are greater than a threshold, a determination is made that the first subset of load cells has failed. Weight data from the second subset of load cells may then be used to determine hypotheses for describing interactions at the fixture.
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公开(公告)号：US11195140B1
公开(公告)日：2021-12-07
申请号：US15703302
申请日：2017-09-13
Applicant: AMAZON TECHNOLOGIES, INC.
Inventor： Paul Eugene Munger , Jayakrishnan Kumar Eledath , Daniel Bibireata , Gopi Prashanth Gopal , Liefeng Bo
Abstract: A user may pick an item from a first inventory location, such as in a lane on a shelf, and may return it another location that is assigned to another type of item. Described are techniques to generate tidiness data that is indicative of whether an item has been returned to an inventory location assigned to that type of item. As items are taken, information about the type of item taken and its weight are stored. When an increase in weight at a lane indicates a return of an item to the lane, the weight of the return is compared to the stored weight of the items previously taken by a user. If the weights correspond to within a threshold value, the type of item associated with the stored weight is deemed to be returned and tidiness data indicative of a tidy return of the item to its appointed lane may be generated.
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公开(公告)号：US11410122B1
公开(公告)日：2022-08-09
申请号：US16779032
申请日：2020-01-31
Applicant: Amazon Technologies, Inc.
Inventor： Matthew Ray DesJardien , Kenneth Edward Doe , Dan Beltzer , Andrew James Pierce , Alexander Eugene Choi , Jacob Drewniak , Paul Eugene Munger , Robert M. Riggs , Stavan Dholakia , Mike Mosman , Sergio Alfredo Phan Lung Li
Abstract: An impulse strip including a plurality of clips, hooks or other features for attaching items to the impulse strip also includes a plurality of switches associated with each of the clips, hooks or other features. The switches are in communication with illuminators or other indicators that are arranged in an array. When an item is loaded onto the strip, or removed from the strip, a switch may be opened or closed, causing one of the illuminators in the array to be activated or deactivated accordingly. An image captured of the illuminators is processed to determine which of the illuminators is activated and which is deactivated, and an inventory level of the strip may be determined based on the statuses of the respective illuminators corresponding to the clips, the hooks or the other features of the impulse strip.
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公开(公告)号：US10805556B1
公开(公告)日：2020-10-13
申请号：US16254258
申请日：2019-01-22
Applicant: Amazon Technologies, Inc.
Inventor： Lorenzo Sorgi , Paul Eugene Munger
Abstract: A shifted-lens imaging device mounted in association with a storage unit captures images of interactions by personnel with items on the storage unit. The images are processed to identify the items and/or the personnel, and to store an association of the personnel with the items in one or more data stores. The shifted-lens imaging device is mounted to the storage unit directly, such as by one or more extensions, and aligned to include a planar area of interest associated with the storage unit, such as a frontal area of the storage unit, within a field of view. A lens of the shifted-lens imaging device is shifted in parallel with the imaging sensor by an offset or distance that may be selected based on a focal length of the imaging device and a distance between the imaging device and dimensions of the planar area of interest.
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Patent Agency Ranking
公开(公告)号：US10540631B1
公开(公告)日：2020-01-21
申请号：US15380951
申请日：2016-12-15
Applicant: AMAZON TECHNOLOGIES, INC.
Inventor： Paul Eugene Munger
Abstract: Shelves or other fixtures may be used to support items at a facility. Load cells at the fixtures may be used to acquire weight data indicative of changes to the fixture as items are added or removed from the fixture. The load cells may occasionally fail to provide accurate information. Described are techniques for comparing the data from a first sensor with data from other sensors to determine if the first sensor has failed. A linear regression may be performed using the data from the other sensors, and the results compared with the output from the first sensor. If the difference exceeds a threshold amount, an error in the first sensor may be determined. Once determined, other actions may be taken, such as generating a repair ticket to fix the first sensor, disregarding weight from that sensor, and so forth.
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公开(公告)号：US11436557B1
公开(公告)日：2022-09-06
申请号：US15939063
申请日：2018-03-28
Applicant: AMAZON TECHNOLOGIES, INC.
Inventor： Dilip Kumar , Liefeng Bo , Nikhil Chacko , Robert Crandall , Nishitkumar Ashokkumar Desai , Jayakrishnan Kumar Eledath , Gopi Prashanth Gopal , Gerard Guy Medioni , Paul Eugene Munger , Kushagra Srivastava
IPC: G06Q10/08 , G01G19/387 , G06N7/00 , G01G19/40
Abstract: One or more load cells measure the weight of items on a shelf or other fixture. Weight changes occur as items are picked from or placed to the fixture. Output from the load cells is processed to produce denoised data. The denoised data is processed to determine event data representative of a pick or a place of an item. Hypotheses are generated using information about where particular types of items are stowed, the weights of those particular types of items, and the event data. A high scoring hypothesis is used to determine interaction data indicative of the type and quantity of an item that was added to or removed from the fixture. If ambiguity exists between hypotheses, additional techniques such as data about locations of weight changes and fine grained analysis may be used to determine the interaction data.
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公开(公告)号：US11346703B1
公开(公告)日：2022-05-31
申请号：US16588886
申请日：2019-09-30
Applicant: AMAZON TECHNOLOGIES, INC.
Inventor： Dan Beltzer , Matthew Ray Desjardien , Stavan H. Dholakia , Kenneth Edward Doe , Sergio Alfredo Phan Lung Li , Michael P. Mosman , Paul Eugene Munger , Nathan Pius O'Neill , Andrew James Pierce , Robert M. Riggs
IPC: G01G3/14 , G01G19/414 , G06Q10/08 , G01G21/22 , G01G19/00
Abstract: A platform is supported at four corners by four half-bridge load cells. Adjacent load cells are oppositely polarized. During operation, analog output from a pair of oppositely polarized half-bridge load cells is provided to an instrument amplifier. Analog output from the instrument amplifier is provided to an analog to digital converter to provide digital data. The digital data is then used to determine weight data indicative of a weight as measured by the pair of half-bridge load cells at that time. A set of switching elements, such as a quad bilateral switch controlled by a microcontroller, rapidly switch between pairs of oppositely polarized load cells. The weight data may be used to determine an overall weight change on the platform, such as a pick or a place of an item. Weight data from the four pairs of load cells may be used to determine a change in center of gravity.
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公开(公告)号：US11308442B1
公开(公告)日：2022-04-19
申请号：US15939080
申请日：2018-03-28
Applicant: AMAZON TECHNOLOGIES, INC.
Inventor： Dilip Kumar , Liefeng Bo , Nikhil Chacko , Robert Crandall , Nishitkumar Ashokkumar Desai , Jayakrishnan Kumar Eledath , Gopi Prashanth Gopal , Gerard Guy Medioni , Paul Eugene Munger , Kushagra Srivastava
IPC: G06Q10/08 , G01G19/387 , B65G1/137 , G01G19/42 , G06Q20/20
Abstract: Sensor data from load cells at a shelf is processed using a first time window to produce first event data describing coarse and sub-events. Location data is determined that indicates where on the shelf weight changes occurred at particular times. Hypotheses are generated using information about where items are stowed, weights of those of items, type of event, and the location data. If confidence values of these hypotheses are below a threshold value, second event data is determined by merging adjacent sub-events. This second event data is then used to determine second hypotheses which are then assessed. A hypothesis with a high confidence value is used to generate interaction data indicative of picks or places of particular quantities of particular types of items from the shelf.
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公开(公告)号：US10969267B1
公开(公告)日：2021-04-06
申请号：US16290320
申请日：2019-03-01
Applicant: AMAZON TECHNOLOGIES, INC.
Inventor： Nicholas Franklin , Jeremy Samuel De Bonet , Nicholas McMahon , Nicholas Mendenhall , Paul Eugene Munger , Jacob Siegel , Zihui Zhang
IPC: G01G19/414 , G01G19/18 , G01G21/23 , G01G21/28 , G06Q10/08
Abstract: A parallel planar weight sensing device includes an accessory mounting bracket with an upper portion and a lower portion. Part of the accessory mounting bracket extends around a crossmember that also has an upper portion and a lower portion. Affixed to the upper portion of the crossmember is a first load cell while a second load cell is affixed to the lower portion of the crossmember. The upper portion of the accessory mounting bracket is affixed to the first load cell while the lower portion is affixed to the second load cell. An accessory, such as a shelf or hook, may be attached to the accessory mounting bracket and used to stow items. As the load on the accessory changes, such as due to a pick or place of items, a total weight change may be determined by summing the output from the load cells.
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