-
公开(公告)号：US11747475B1
公开(公告)日：2023-09-05
申请号：US16815538
申请日：2020-03-11
Applicant: AMAZON TECHNOLOGIES, INC.
Inventor： Eric Foxlin
IPC: G01S17/86 , G01S17/42 , G01S17/04 , G01S17/931 , G01S17/89 , G06V20/20 , G06V20/58 , G01S17/02 , G06T7/70 , G06V10/60
CPC classification number: G01S17/86 , G01S17/02 , G01S17/04 , G01S17/42 , G01S17/89 , G01S17/931 , G06T7/70 , G06V20/20 , G06V20/58 , G06V10/60
Abstract: An autonomous mobile device (AMD) in a physical space uses its own reflection to detect and map reflective surfaces. A first image is acquired by a camera of the AMD at a first time while a light on the AMD is turned on. The first image is processed to find a candidate reflection, characterized by a bright spot in the image. A second image is acquired at a second time while the light is off. The reflection is confirmed by absence of the candidate reflection in the second image. A display on the AMD presents a displayed image at a third time. A third image acquired during the third time is processed to find the features of the displayed image. Once found, a location and orientation in physical space of a plane of the surface causing the reflection is calculated. An occupancy map is updated to include this information.
-
公开(公告)号：US11675351B1
公开(公告)日：2023-06-13
申请号：US17301739
申请日：2021-04-13
Applicant: AMAZON TECHNOLOGIES, INC.
Inventor： Christopher Wells Fitzhugh , Li Huang , Catherine May Farmer , Duc Hongle Ngo , Eric Foxlin , Gregory Turner Witmer , Babak Hashemizadeh , Marcel Colman Eric Stieber
CPC classification number: G05D1/0088 , B60R16/06 , G05D1/0253 , G05D1/0272
Abstract: An autonomous mobile device (AMD) builds up electrostatic charges from moving and generates heat from the operation of internal components. In addition to possible user discomfort, electrostatic discharges may damage sensors and electronics. Electrostatic charges are dissipated from the AMD using an electrostatic dissipation structure and conductive wheels. A conductive path between a chassis ground, the electrostatic dissipation structure, and the conductive wheels improves the dissipation of electrostatic charges. Electrostatic charges are also dissipated from components by mounting the components using conductive materials. Sensors may be affixed to a support structure that is affected by thermal expansion. Thermal expansion may distort precise positioning of sensors, reducing accuracy of sensor data. An elastomeric foam may be used to mount sensors to a support structure, allowing for thermal expansion without distorting the positioning of the sensors.
-
公开(公告)号：US11797022B1
公开(公告)日：2023-10-24
申请号：US17305013
申请日：2021-06-29
Applicant: AMAZON TECHNOLOGIES, INC.
Inventor： James Ballantyne , Eric Foxlin , Lu Xia , Simon Edwards-Parton , Boshen Niu , Harish Annavajjala
CPC classification number: G05D1/0251 , G05D1/0088 , G05D1/0214 , G06T7/12 , G06T7/13 , G06T7/521 , G06T7/593 , G06T2207/10012 , G06T2207/10028 , G06T2207/30261
Abstract: An autonomous mobile device (AMD) may move around a physical space while performing tasks. Sensor data is used to determine an occupancy map of the physical space. Some objects within the physical space may be difficult to detect because of characteristics that result in lower confidence in sensor data, such as transparent or reflective objects. To include difficult-to-detect objects in the occupancy map, image data is processed to identify portions of the image that includes features associated with difficult-to-detect objects. Given the portion that possibly includes difficult-to-detect objects, the AMD attempts to determine where in the physical space that portion corresponds to. For example, the AMD may use stereovision to determine the physical area associated with the features depicted in the portion. Objects in that area are included in an occupancy map annotated as objects that should persist unless confirmed to not be within the physical space.
-
-
Search Results
3
records
(took 0.011 seconds)
