Wireless remote tire parameter measurement method and apparatus
First Claim
1. An apparatus for remotely monitoring a parameter of a tire, said apparatus comprising:
- an acoustical transducer located remotely from said tire which detects and converts vibrational sound waves from said tire into an electrical signal indicative of an acoustical signature of said tire;
a measurement processor which monitors said electronic signal, compares said monitored electronic signal with a set of acceptable threshold limits for said electronic signal, and generates a warning signal if said monitored electronic signal is not within said set of acceptable threshold limits.
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Abstract
The present invention is a novel technique and system that allows the pressure of a tire to be remotely monitored by sensing a tire parameter indicative of the tire'"'"'s pressure without mounting any device on the tire itself, while the tire is or is not rotating. In the illustrative embodiment, a tire parameter indicative of the pressure inside the tire, such as the temperature, acoustical signature, or shape of the tire, is measured remotely with a remotely mounted sensor. The measured parameter is compared to a range of known acceptable limits for that particular parameter, and a warning signal is generated if the measured parameter is not within that range of acceptable limits.
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Citations
6 Claims
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1. An apparatus for remotely monitoring a parameter of a tire, said apparatus comprising:
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an acoustical transducer located remotely from said tire which detects and converts vibrational sound waves from said tire into an electrical signal indicative of an acoustical signature of said tire;
a measurement processor which monitors said electronic signal, compares said monitored electronic signal with a set of acceptable threshold limits for said electronic signal, and generates a warning signal if said monitored electronic signal is not within said set of acceptable threshold limits. - View Dependent Claims (2, 3, 4, 5)
said parameter comprises a pressure of said tire.
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3. An apparatus in accordance with claim 1, wherein:
said acoustical transducer comprises an ultrasound detector.
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4. An apparatus in accordance with claim 1, wherein:
said acoustical transducer comprises a microphone.
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5. An apparatus in accordance with claim 1, wherein:
said acoustical transducer comprises an accelerometer.
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6. A method for detecting an unacceptable condition of a tire, comprising:
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remotely detecting vibrational sound waves from said tire;
converting said detected vibrational sound waves into an electrical signal indicative of an acoustical signature of said tire;
comparing said electronic signal with a set of acceptable threshold limits; and
generating a warning signal if said electronic signal is not within said set of acceptable threshold limits.
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Specification