Vehicle tag reader
First Claim
1. A method of interrogating a transponder mounted on a vehicle tire with an interrogator associated with the vehicle, comprising:
- determining a circumferential location of the transponder on the vehicle tire;
interrogating the transponder in a window when the transponder moves in an arc proximate the interrogator; and
not interrogating the transponder when the transponder is expected to be outside the window.
3 Assignments
0 Petitions
Accused Products
Abstract
A remote communication device, such as a radio frequency type device, that receives temperature indicia concerning a container and/or its contents and communicates such temperature indicia along with an identification indicia to a reader. The remote communication device can measure and communicate temperature indicia associated with a container in a periodic manner. The remote communication device can also measure and communicate temperature indicia associated with a container when such temperature indicia exceed a certain minimum or maximum threshold temperature. The remote communication device can also include power circuitry to store energy when energized in the range of an interrogation reader so that the remote communication device can be powered for temperature indicia measurements when not in the range of an interrogation reader. The temperature associated with the container and/or its contents may be determined by various techniques including thermal contact between the temperature sensor and the container, measuring the discharge rate in a discharge capacitor associated with the remote communication device, and determining the frequency of maximum energy absorption of the remote communication device to correlate it to temperature.
81 Citations
21 Claims
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1. A method of interrogating a transponder mounted on a vehicle tire with an interrogator associated with the vehicle, comprising:
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determining a circumferential location of the transponder on the vehicle tire; interrogating the transponder in a window when the transponder moves in an arc proximate the interrogator; and not interrogating the transponder when the transponder is expected to be outside the window. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A wireless communication system, comprising:
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a tire condition sensor adapted to sense a tire condition relating to a vehicle tire; a transponder associated with said tire condition sensor; an interrogator; and a control system adapted to determine a circumferential location of said transponder on the vehicle tire; interrogate, through said interrogator, the transponder in a window when the transponder moves in an arc proximate said interrogator; and not interrogate said transponder when said transponder is expected to be outside the window. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21)
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Specification