LOW-POWER VEHICLE DETECTION
First Claim
1. A method of operating a parking meter, the method comprising:
- detecting an object in proximity to a parking meter, the detecting being based on a change in a proximity measurement at the meter;
activating a directional sensor in response to detecting the object;
receiving sensor data at a meter processor from the directional sensor, the received sensor data indicating a predetermined direction to the detected object relative to the meter;
determining a presence of the object, or lack thereof, in the predetermined direction based on the sensor data; and
upon a positive determination of the presence of the object, storing an indication of the presence of the object along with a time of the positive determination.
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Accused Products
Abstract
A parking meter detects an object in proximity, based on a change in a proximity measurement at the meter, activates a directional sensor in response to detecting the object, receives sensor data at a meter processor from the directional sensor, wherein the received sensor data indicates a predetermined direction to the detected object relative to the meter. The parking meter determines a presence of the object, or lack thereof, in the predetermined direction based on the sensor data, and upon a positive determination of the presence of the object, stores an indication of the presence of the object along with a time of the positive determination.
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Citations
9 Claims
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1. A method of operating a parking meter, the method comprising:
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detecting an object in proximity to a parking meter, the detecting being based on a change in a proximity measurement at the meter; activating a directional sensor in response to detecting the object; receiving sensor data at a meter processor from the directional sensor, the received sensor data indicating a predetermined direction to the detected object relative to the meter; determining a presence of the object, or lack thereof, in the predetermined direction based on the sensor data; and upon a positive determination of the presence of the object, storing an indication of the presence of the object along with a time of the positive determination. - View Dependent Claims (2, 3, 4, 5)
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6. A parking meter comprising:
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a proximity sensor configured to detect an object in proximity to the parking meter based on a proximity measurement, and configured to produce a trigger signal in response to the detection of the object; a directional sensor configured to detect a direction of the object relative to the meter; and a control module coupled to the magnetometer and the directional sensor and configured to; receive the trigger signal from the proximity sensor and, in response to receiving the trigger signal, activate the directional sensor, receive sensor data from the directional sensor, determine a presence of an object, or lack thereof, in the predetermined direction based on the directional sensor data, and upon a positive determination of the presence of the object, store an indication of the presence of the object along with a time of the positive determination. - View Dependent Claims (7, 8, 9)
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Specification