Hybrid multi-camera based positioning
First Claim
1. A method of providing a position of an object, the method comprising:
- determining the position of the object using a plurality of images taken by a set of cameras;
identifying a set of electronic devices within a predetermined distance of the object based on a set of radio frequency (RF) signals received from each electronic device in the set of electronic devices;
associating one or more electronic devices in the set of electronic devices with the object based on a distance between the object and each of said one or more electronic devices at one or more instances of time; and
sending the position of the object determined by using the plurality of images to each of said one or more associated electronic devices.
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Abstract
A positioning server is connected to a collection of access points, base stations, NFC stations, and image or video cameras and the collected data is used for positioning objects. A plurality of electronic devices are paired with an object by tracking the position of the object based on imaging and the position of electronic devices based on RF signals in vicinity of the object. Once a device is paired with an object, the propagation channel profile measured through the electronic device is used to develop and tune a database of channel profiles versus location. This database is used based on signature/profile matching and correlation for positioning devices and objects that do not have pairing or have poor image-based positioning accuracy or reliability. When a device is detected that cannot be paired with any object, or a device that is unpaired from a previously associated object, a theft or loss alert is generated.
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Citations
22 Claims
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1. A method of providing a position of an object, the method comprising:
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determining the position of the object using a plurality of images taken by a set of cameras; identifying a set of electronic devices within a predetermined distance of the object based on a set of radio frequency (RF) signals received from each electronic device in the set of electronic devices; associating one or more electronic devices in the set of electronic devices with the object based on a distance between the object and each of said one or more electronic devices at one or more instances of time; and sending the position of the object determined by using the plurality of images to each of said one or more associated electronic devices. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A non-transitory machine readable medium storing a program for providing a position of an object, the program executable by at least one processing unit, the program comprising sets of instructions for:
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determining the position of the object using a plurality of images taken by a set of cameras; identifying a set of electronic devices within a predetermined distance of the object based on a set of radio frequency (RF) signals received from each electronic device in the set of electronic devices; associating one or more electronic devices in the set of electronic devices with the object based on a distance between the object and each of said one or more electronic devices at one or more instances of time; and sending the position of the object determined by using the plurality of images to each of said one or more associated electronic devices. - View Dependent Claims (15, 16, 17, 18)
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19. An apparatus comprising:
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a set of processing units for executing sets of instructions; a non-transitory machine readable medium storing a program which when executed by one of the processing units provides a position of an object, the program comprising sets of instructions for; determining the position of the object using a plurality of images taken by a set of cameras; identifying a set of electronic devices within a predetermined distance of the object based on a set of radio frequency (RF) signals received from each electronic device in the set of electronic devices; associating one or more electronic devices in the set of electronic devices with the object based on distances between the object and each of said one or more electronic devices at one or more instances of time; and sending the position of the object determined by using the plurality of images to each of said one or more associated electronic devices. - View Dependent Claims (20, 21, 22)
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Specification