Locating an object based on charging/response time

摘要

An approach is provided in which an RFID reader receives a response signal from an RFID tag affixed to an object. The RFID reader determines a tag charging time of the RFID tag based upon a first point in time that the RFID reader sent a request signal to the RFID tag and a second point in time that the response signal was received by the RFID reader. In turn, the RFID reader identifies a location of the object based on the tag charging time and generates a notification that includes the location of the object.

主权项

1. A method implemented by an information handling system that includes a memory and a processor, the method comprising:
receiving, at an RFID reader installed in a vehicle, a response signal from an RFID tag affixed to an object; determining a tag charging time of the RFID tag based upon a first point in time that the RFID reader sent a request signal to the RFID tag and a second point in time that the response signal was received by the RFID reader; identifying a location of the object within the vehicle based upon the tag charging time; generating a notification that includes the location of the object; and calibrating the RFID reader in response to detecting an adjustable seat, which has an affixed pre-located RFID tag, moved from a first location to a second location, the calibrating further comprising:
transmitting a calibration request signal from the RFID reader at a third point in time;receiving a calibration response signal from the pre-located RFID tag at a fourth point in time, the pre-located RFID tag at a pre-located distance;determining a calibration response time based upon the third point in time and the fourth point in time;determining a calibration distance based on the calibration response time;comparing the calibration distance with the pre-located distance; andadjusting an environmental parameter based upon the comparison.