Apparatus and method for detecting the condition of an item
First Claim
1. Apparatus for detecting a specific condition of an item, the apparatus comprising:
- a structure for radiating radio frequency energy in response to the reception by said structure of radio frequency energy;
said structure having a first configuration which, in use, is changed to a second configuration in response to said item attaining said specific condition;
said change in configuration producing a detectable difference in radio frequency energy radiated from said structure.
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Abstract
The present invention relates to an apparatus and method for detecting the condition of an item and, particularly, but not exclusively, to an apparatus and method for detecting a specific condition of a motor vehicle tire. The invention provides apparatus comprising a structure for radiating radio frequency energy in response to a reception by said structure of radio frequency energy; said structure having a first configuration which, in use, is changed to a second configuration in response to said item attaining said specific condition; said change in configuration producing a detectable difference in radio frequency energy radiated from said structure. Apparatus according to the present invention thereby allows for the remote interrogation of the condition of an item.
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Citations
16 Claims
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1. Apparatus for detecting a specific condition of an item, the apparatus comprising:
- a structure for radiating radio frequency energy in response to the reception by said structure of radio frequency energy;
said structure having a first configuration which, in use, is changed to a second configuration in response to said item attaining said specific condition;
said change in configuration producing a detectable difference in radio frequency energy radiated from said structure. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
- a structure for radiating radio frequency energy in response to the reception by said structure of radio frequency energy;
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16. A method for detecting a specific condition of an item, the method comprising the steps of:
- providing said item with the apparatus defined hereinabove for detecting a specific item condition;
transmitting radio frequency energy to Said apparatus and receiving radio frequency energy radiated therefrom; and
monitoring for radiated radio frequency energy corresponding to the attaining of said specific condition.
- providing said item with the apparatus defined hereinabove for detecting a specific item condition;
Specification