Tracking A Moving Target Using Wireless Signals
AssigneeWiSpear Systems Ltd.
InventorOz Liv
Life of this patent
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Abstract
A system and method are provided for visually tracking a moving (e.g., walking) target using wireless technology. Wireless access points detect transmissions from wireless mobile devices and extract identifying information from such devices. If a device is identified as belonging to a target of interest, antenna array or arrays are used to continually determine bearing of device relative to each antenna array, and to determine triangulated position of device if possible. Bearings and/or position so determined are used to aim camera or cameras and thus track and capture images of target of interest.
Claims16
A method for visually tracking a moving target of interest, comprising:
- intercepting, in a first wireless access point, a first transmission made by a first wireless mobile device;
- extracting, from said first transmission intercepted, a first identifier associated with the first wireless mobile wireless device;
- associating the first identifier with a recorded identifier stored in a database of identifiers-of-interest;
- using a first antenna array in the first wireless access point to determine at least a bearing of the first wireless mobile device relative to the first wireless access point;
- and
- using at least said bearing determined, pointing a camera in a direction of the first wireless mobile device, thereby gaining access to first visual data of the moving target of interest associated with the first wireless mobile device.
A system comprising a processor, a wireless receiver, a camera, and a camera control unit, for tracking a moving target of interest, comprising:
- a wireless access point comprising an antenna assembly that receives a wireless radio frequency (RF) transmission from a mobile transmitter of a mobile device, said wireless access point configured and arranged to extract identifying information from a RF signal in said RF transmission, and further configured and arranged to determine a position of said mobile device;
- a data store containing information regarding a plurality of mobile devices of interest;
- and
- a processor in data communication with said wireless access point and said data store, configured and arranged to take an input from the wireless access point representing the position of the mobile device, to query the data store, and to compare said identifying information to an identifier of interest stored in said data store;
- the processor further configured and arranged, when a positive comparison between said identifying information and the identifier of interest is made, to generate an output control signal that controls a camera control unit to direct a camera towards the position of the mobile device.
Dependencies are inferred from the claim text.