Vehicle tag reader
First Claim
1. A transponder for sensing a condition relating to a tire, comprising:
- a tire condition sensor adapted to sense a condition relating to the tire; and
a control system comprising at least two operating modes, said control system communicatively connected to said pressure sensor and transmitting information from said pressure sensor to a remote location in one of said at least two operating modes depending on how the remote location interrogates the control system.
3 Assignments
0 Petitions
Accused Products
Abstract
A tire sensor that communicates to a remote interrogator in one of two modes depending on the nature of the interrogation. The interrogator may be distributed throughout a vehicle if needed for design options. Further, the interrogator only interrogates the transponder when the interrogator has reason to believe that the transponder is in range of the interrogator. The interrogator and transponder may be configured to operate in different modes for communication during operation of the tire on a vehicle and during non-operation. The transponder may communicate tire condition information to the interrogator concerning environmental or other information sensed about the tire.
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Citations
40 Claims
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1. A transponder for sensing a condition relating to a tire, comprising:
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a tire condition sensor adapted to sense a condition relating to the tire; and
a control system comprising at least two operating modes, said control system communicatively connected to said pressure sensor and transmitting information from said pressure sensor to a remote location in one of said at least two operating modes depending on how the remote location interrogates the control system. - View Dependent Claims (2, 3, 4, 5)
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6. A method of operating a transponder, comprising:
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providing a transponder comprising two operating modes;
associating a tire condition sensor with the transponder;
operating in a first mode when said transponder is present in a first type of RF field; and
operating in a second mode when said transponder is present in a second type of RF field. - View Dependent Claims (7, 8, 9, 10, 11)
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12. A method of interrogating a transponder mounted on a vehicle tire with an interrogator associated with the vehicle, comprising the steps of:
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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 (13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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25. 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 and adapted to be positioned within the vehicle tire;
an interrogator adapted to be positioned at least partially in a wheel well; 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 (26, 27, 28, 29, 30, 31, 32)
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33. An interrogator, comprising:
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wireless communication circuitry adapted to communicate with a transponder positioned on a wheel of a vehicle and receive tire condition information therefrom; and
a plurality of antennas adapted to be arranged in an array about a wheel well of the vehicle for wirelessly communicating with the transponder. - View Dependent Claims (34, 35, 36, 37)
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38. A method of interrogating a transponder, comprising:
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determining a location and speed of a transponder as the transponder rotates within a wheel well of a vehicle;
sequentially using different ones of a plurality of antennas positioned within a wheel well to communicate with the transponder. - View Dependent Claims (39, 40)
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Specification