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US 10,946,833 B2Granted
Access device localization
AssigneesVolkswagen Aktiengesellschaft, Audi AG, Porsche AG
InventorsLiang Kong, Oleg Tolstov, Mehdi Golestanian, Maximilian Thum
Life of this patent
Estimating the term…
Abstract
A system and method are provided for determining an optimum location of an access device relative to a motor vehicle. The access device allows entry into the motor vehicle and/or allows activation of systems in the motor vehicle depending on the location of the access device relative to the motor vehicle.
Claims19
A motor vehicle comprising:
- a body defining an interior of the motor vehicle with an exterior region surrounding the body;
- a plurality of operating systems for controlling operation of the motor vehicle;
- and
- access-control means for locating an access device relative to the motor vehicle by identifying an initial region of interest where the access device is located based on gathered ranging data to a plurality of predetermined positions of a coordinate system, optimizing the initial region of interest based on overlapping points in the ranging data, determining an initial location of the access device as in the interior or in the exterior region based on the optimized region of interest, and determining an optimum location of the access device relative to the motor vehicle in the coordinate system based on whether the access device is determined to be in the interior or in the exterior region to control activation of the operating systems and allowing activation of one or more of the operating systems in response to the determined optimum location of the access device being within a predetermined region associated with the one or more operating systems,
- wherein the initial region of interest is identified based on ranging data from at least two predetermined positions of the plurality of predetermined positions having lowest measured distances, wherein a lowest measured distance defines a center point of the initial region of interest, and wherein a mean ranging value in the ranging data from the at least two predetermined positions defines a height and width of the region of interest.
2 more elements
A motor vehicle comprising:
- a body defining an interior of the motor vehicle;
- a plurality of operating systems for controlling operation of the motor vehicle;
- and
- an access-control system configured to control activation of the operating systems, the access-control system comprising:
- a plurality of anchors distributed along the body in predetermined positions of a coordinate system;
- an access device configured to allow activation of one or more of the operating systems in response to the access device being located in one or more predetermined positions relative to the motor vehicle;
- and
- a controller,
- wherein each anchor of the plurality of anchors is configured to measure a distance between the respective anchor and the access device, and the controller is configured to gather ranging data of the measured distances from the plurality of anchors, identify an initial region of interest where the access device is located based on the ranging data, optimize the initial region of interest based on overlapping points in the ranging data, determine an initial location of the access device as in the interior or in an exterior region around the motor vehicle based on the optimized region of interest, and determine an optimum location of the access device relative to the motor vehicle in the coordinate system based on whether the access device is determined to be in the interior or in the exterior region, and
- wherein the initial region of interest is identified based on ranging data from at least two anchors of the plurality of anchors having lowest measured distances, wherein a lowest measured distance defines a center point of the initial region of interest, and wherein a mean ranging value in the ranging data from the at least two anchors defines a height and width of the region of interest.
7 more elements
An access-control system for a motor vehicle, the access-control system comprising:
- a plurality of anchors distributed in predetermined positions of a coordinate system;
- an access device configured to allow activation of one or more operating systems of the motor vehicle in response to the access device being located in one or more predetermined positions relative to the motor vehicle;
- and
- a controller,
- wherein each anchor of the plurality of anchors is configured to measure a distance between the respective anchor and the access device, and the controller is configured to gather ranging data of the measured distances from the plurality of anchors, identify an initial region of interest where the access device is located based on the ranging data, optimize the initial region of interest based on overlapping points in the ranging data, determine an initial location of the access device as in an interior of the motor vehicle or in an exterior region around the motor vehicle based on the optimized region of interest, and determine an optimum location of the access device relative to the motor vehicle in the coordinate system based on whether the access device is determined to be in the interior or in the exterior region, and
- wherein the initial region of interest is identified based on ranging data from at least two anchors of the plurality of anchors having lowest measured distances, wherein a lowest measured distance defines a center point of the initial region of interest, and wherein a mean ranging value in the ranging data from the at least two anchors defines a height and width of the region of interest.
3 more elements
A method of locating an access device relative to a motor vehicle, the method comprising:
- gathering ranging data including measured distances between the access device and a plurality of anchors distributed in predetermined positions of a coordinate system;
- identifying an initial region of interest where the access device is located based on the ranging data;
- optimizing the initial region of interest based on overlapping points in the ranging data;
- determining an initial location of the access device as in an interior of the motor vehicle or in an exterior region around the motor vehicle based on the optimized region of interest;
- and
- determining an optimum location of the access device relative to the motor vehicle in the coordinate system based on whether the access device is determined to be in the interior or in the exterior region,
- wherein the initial region of interest is identified based on ranging data from at least two anchors of the plurality of anchors having lowest measured distances, wherein a lowest measured distance defines a center point of the initial region of interest, and wherein a mean ranging value in the ranging data from the at least two anchors defines a height and width of the region of interest.
4 more elements
Dependencies are inferred from the claim text.