Vehicle location device
First Claim
1. A detection device, said device comprising:
- a receiver, the receiver determining intensity of a homing-signal transmitted from a vehicle and received at the device; and
a controller-circuit in communication with the receiver, an inertial-measurement-unit configured to determine a distance the device is moved, and an electronic-compass configured to determine a heading in which the device is moving;
the controller-circuit determining a first-range between a first-position of the device and the vehicle based on a first-intensity of the homing-signal;
whereinthe first-intensity varies less than a variation-threshold;
whereinthe controller-circuit determines whether the device has moved to a second-position based on a first-distance and a first-heading; and
whereinthe controller-circuit determines a second-range between the second-position and the vehicle based on a second-intensity of the homing-signal.
4 Assignments
0 Petitions
Accused Products
Abstract
A detection device includes a receiver, an inertial-measurement-unit, an electronic-compass, and a controller-circuit. The receiver determines intensity of a homing-signal transmitted from a vehicle and received at the device. The inertial-measurement-unit determines a distance the device is moved. The electronic-compass determines a heading in which the device is moving. The controller-circuit is in communication with the receiver, the inertial-measurement-unit, and the electronic-compass. The controller-circuit determines a first-range between a first-position of the device and the vehicle. The controller-circuit determines that that the device has moved to a second-position based on a first-distance and a first-heading. The controller-circuit determines a second-range between the second-position and the vehicle. The controller-circuit determines that the device has moved to a third-position based on a second-distance and a second-heading. The controller-circuit determines a third-range between the third-position and the vehicle. The controller-circuit determines a travel-distance and a travel-direction from the device to the vehicle.
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Citations
32 Claims
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1. A detection device, said device comprising:
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a receiver, the receiver determining intensity of a homing-signal transmitted from a vehicle and received at the device; and a controller-circuit in communication with the receiver, an inertial-measurement-unit configured to determine a distance the device is moved, and an electronic-compass configured to determine a heading in which the device is moving; the controller-circuit determining a first-range between a first-position of the device and the vehicle based on a first-intensity of the homing-signal;
whereinthe first-intensity varies less than a variation-threshold;
whereinthe controller-circuit determines whether the device has moved to a second-position based on a first-distance and a first-heading; and
whereinthe controller-circuit determines a second-range between the second-position and the vehicle based on a second-intensity of the homing-signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A detection method, said method comprising:
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determining an intensity of a homing-signal transmitted from a vehicle, with a receiver installed in a device; determining, with a controller-circuit in communication with the receiver, an inertial-measurement-unit configured to determine a distance the device is moved, and an electronic-compass configured to determine a heading in which the device is moving, a first-range between a first-position of the device and the vehicle based on a first-intensity of the homing-signal, wherein the first-intensity varies less than a variation-threshold; determining, with the controller-circuit, whether the device has moved to a second-position based on a first-distance and a first-heading; and determining, with the controller-circuit, a second-range between the second-position and the vehicle based on a second-intensity of the homing-signal. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32)
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Specification