Self-powered vehicle speed sensor
First Claim
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1. A method of sensing vehicle speed comprising:
- self-powering a speed sensor, taking a sample of speed sensor data from the speed sensor, processing the sample of speed sensor data to calculate speed, and wirelessly transmitting the calculated speed to a server. A method of sensing vehicle speed as in claim 1 wherein the speed sensor is a doppler speed sensor that distinguishes direction of vehicles.
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Abstract
A method of sensing vehicle speed is disclosed. The method comprises self-powering a speed sensor and taking a sample of speed sensor data from the speed sensor. The sample of speed sensor data is processed to calculate a calculated speed, and the calculated speed is wirelessly transmitted to a server
26 Citations
16 Claims
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1. A method of sensing vehicle speed comprising:
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self-powering a speed sensor, taking a sample of speed sensor data from the speed sensor, processing the sample of speed sensor data to calculate speed, and wirelessly transmitting the calculated speed to a server. A method of sensing vehicle speed as in claim 1 wherein the speed sensor is a doppler speed sensor that distinguishes direction of vehicles. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A device for sensing vehicle speed comprising:
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a self-powered speed sensor, a sampler that takes a sample of speed sensor data from the speed sensor, a processor that calculates a calculated speed from the sample of speed sensor data, and a transmitter that wirelessly transmits the calculated speed to a server.
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Specification