Truck acoustic data analyzer system
First Claim
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1. A passive turbocharcred vehicle acoustic data analyzer system comprising:
- at least two microphones disposed in the acoustic field of a moving vehicle,a computer in electronic communication with said at least two microphones wherein said computer detects and measures the frequency shift in the acoustic signature emitted by said vehicle as it approaches and passes said at least two microphones, wherein said acoustic signature is filtered and processed to determine an engine speed component and a turbocharger speed component for estimating said moving vehicle characteristics.
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Abstract
A passive vehicle acoustic data analyzer system having at least one microphone disposed in the acoustic field of a moving vehicle and a computer in electronic communication the microphone(s). The computer detects and measures the frequency shift in the acoustic signature emitted by the vehicle as it approaches and passes the microphone(s). The acoustic signature of a truck driving by a microphone can provide enough information to estimate the truck speed in miles-per-hour (mph), engine speed in rotations-per-minute (RPM), turbocharger speed in RPM, and vehicle weight.
36 Citations
15 Claims
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1. A passive turbocharcred vehicle acoustic data analyzer system comprising:
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at least two microphones disposed in the acoustic field of a moving vehicle, a computer in electronic communication with said at least two microphones wherein said computer detects and measures the frequency shift in the acoustic signature emitted by said vehicle as it approaches and passes said at least two microphones, wherein said acoustic signature is filtered and processed to determine an engine speed component and a turbocharger speed component for estimating said moving vehicle characteristics. - View Dependent Claims (2, 3, 4, 5)
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6. A passive turbocharcred vehicle acoustic data analyzer system comprising:
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a single microphone disposed in the acoustic field of a moving vehicle, a computer in electronic communication with said single microphone wherein said computer detects and measures the frequency shift in the acoustic signature emitted by said vehicle as it approaches and passes said single microphone, wherein said acoustic signature is filtered and processed to determine an engine speed component and a turbocharger speed component for estimating said moving vehicle characteristics. - View Dependent Claims (7, 8, 10)
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9. The system of claim S wherein said acoustic signature further comprises a monophonic sound file.
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11. A passive method of measuring real time state of a moving turbocharged vehicle comprising the steps of:
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disposing at least one microphone in the acoustic field of a moving vehicle, connecting a computer to the output of said at least one microphone to detect and measure the frequency shift in the acoustic signature emitted by said vehicle as it approaches and passes said at least one microphone, analyzing said acoustic signature to determine the real time state of said vehicle, wherein said acoustic signature is filtered and processed to determine an engine speed component and a turbocharger speed component. - View Dependent Claims (12, 13, 14, 15)
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Specification