Motor vehicle key location system using wireless signal
First Claim
1. A system comprising:
- a transceiver system that includes a plurality of transceivers, wherein the transceiver system is configured to (i) transmit, using a first transceiver of the plurality of transceivers, a location request signal to a user identification device (UID), (ii) receive, using the plurality of transceivers and in response to the UID receiving the location request signal, a position signal transmitted from the UID, and (iii) measure, using the plurality of transceivers, a plurality of angles of arrival, wherein the plurality of angles of arrival is based on the position signal and each angle of arrival corresponds to one transceiver of the plurality of transceivers; and
a controller in communication with the plurality of transceivers, wherein the controller is configured to, using a processor executing instructions stored in a non-transitory memory, (i) receive the plurality of angles of arrival, (ii) determine a location of the UID based on the plurality of angles of arrival, (iii) determine a distance between the UID and a vehicle based on the location of the UID, (iv) compare the distance with a distance threshold, and (v) activate at least one of an ignition system of the vehicle and a locking system of the vehicle based on the comparison; and
wherein the controller is further configured to determine an outdoor temperature, compare the outdoor temperature with at least one of a minimum temperature threshold and a maximum temperature threshold, and increase the distance threshold when at least one of the outdoor temperature is below the minimum temperature threshold and the outdoor temperature is above the maximum temperature threshold.
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Accused Products
Abstract
Systems and methods are provided that include a transceiver system. The transceiver system is configured to (i) transmit a location request signal to a user identification device (UID), (ii) receive, in response to the UID receiving the location request signal, a position signal transmitted from the UID, and (iii) measure angles of arrival of the position signal for each transceiver of the transceiver system. A controller is in communication with the transceivers and is configured to (i) receive the angles of arrival, (ii) determine a location of the UID based on the angles of arrival, and (iii) activate at least one of an ignition system of a vehicle and a locking system of the vehicle based on the location of the UID.
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Citations
15 Claims
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1. A system comprising:
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a transceiver system that includes a plurality of transceivers, wherein the transceiver system is configured to (i) transmit, using a first transceiver of the plurality of transceivers, a location request signal to a user identification device (UID), (ii) receive, using the plurality of transceivers and in response to the UID receiving the location request signal, a position signal transmitted from the UID, and (iii) measure, using the plurality of transceivers, a plurality of angles of arrival, wherein the plurality of angles of arrival is based on the position signal and each angle of arrival corresponds to one transceiver of the plurality of transceivers; and a controller in communication with the plurality of transceivers, wherein the controller is configured to, using a processor executing instructions stored in a non-transitory memory, (i) receive the plurality of angles of arrival, (ii) determine a location of the UID based on the plurality of angles of arrival, (iii) determine a distance between the UID and a vehicle based on the location of the UID, (iv) compare the distance with a distance threshold, and (v) activate at least one of an ignition system of the vehicle and a locking system of the vehicle based on the comparison; and wherein the controller is further configured to determine an outdoor temperature, compare the outdoor temperature with at least one of a minimum temperature threshold and a maximum temperature threshold, and increase the distance threshold when at least one of the outdoor temperature is below the minimum temperature threshold and the outdoor temperature is above the maximum temperature threshold. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method comprising:
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transmitting, using a first transceiver of a plurality of transceivers, a location request signal to a user identification device (UID); receiving, using the plurality of transceivers and in response to the UID receiving the location request signal, a position signal transmitted from the UID; measuring, using the plurality of transceivers, a plurality of angles of arrival, wherein the plurality of angles of arrival is based on the position signal and each angle of arrival corresponds to one transceiver of the plurality of transceivers; receiving, using a processor that is configured to execute instructions stored in a non-transitory memory, the plurality of angles of arrival from the plurality of transceivers; determining, using the processor, a location of the UID based on the plurality of angles of arrival; determining, using the processor, a distance between the UID and a vehicle based on the location of the UID; comparing, using the processor, the distance with a distance threshold; activating, using the processor, at least one of an ignition system of the vehicle and a locking system of the vehicle based on the comparison; determining, using the processor, an outdoor temperature; comparing, using the processor, the outdoor temperature with at least one of a minimum temperature threshold and a maximum temperature threshold; and increasing, using the processor, the distance threshold when at least one of the outdoor temperature is below the minimum temperature threshold and the outdoor temperature is above the maximum temperature threshold. - View Dependent Claims (12, 13, 14, 15)
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Specification