Method to correlate an object with a localized tag

A data processing device comprising:

• a module that transmits a trigger signal, at a first frequency range, that propagates into a space to determine if one or more tags exist in the space within a detectable distance;
• and
• a processor that is communicatively coupled to the module and which:
• receives at least one response signal from a tag antenna corresponding to a respective tag of an object in a space located within a detectable distance of the user device, each response signal having a unique tag identification (ID) of the respective tag modulated thereon;
• in response to receiving the corresponding response signal from the respective tag within the space, identifies a directional location of the respective tag relative to the user device including a general horizontal position within the space and a general vertical position within the space;
• estimates, based on a signal strength and the directional location of the corresponding response signal, a distance of the respective tag relative to the user device;
• correlates the directional location and distance of the respective tag to generate a more precise point location of the object within the space;
• and
• outputs the corresponding position information of the object.

A computer program product comprising:

• a computer readable storage device;
• and
• program code on the computer readable storage device that when executed within a processor associated with a user device, the program code enables the user device to provide functionality of:
• receiving, by a user device, at least one response signal from a tag antenna corresponding to a respective tag of an object in a space located within a detectable distance of the user device, each response signal having a unique tag identification (ID) of the respective tag modulated thereon;
• in response to receiving the corresponding response signal from the respective tag within the space, identifying, by a processor, a directional location of the respective tag relative to the user device including a general horizontal position within the space and a general vertical position within the space;
• estimating, based on a signal strength and the directional location of the corresponding response signal, a distance of the respective tag relative to the user device;
• correlating the directional location and distance of the respective tag to generate a more precise point location of the object within the space;
• and
• outputting the corresponding position information of the object.