Vehicle System for Detecting a Three-Dimensional Location of a Wireless Device
First Claim
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1. A vehicle system comprising:
- a portable device configured to provide a wireless signal;
at least three base stations for being positioned about a vehicle within a first plane; and
a fourth base station for being positioned within the vehicle and vertically offset from the first plane to define a second plane with two of the at least three base stations, each base station being configured to receive the wireless signal and to generate a message indicative of a time of flight of the wireless signal, the fourth base station being further configured to determine a three-dimensional location of the portable device based on the message generated by each base station.
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Abstract
A vehicle system is provided with a portable device that is configured to provide a wireless signal. The vehicle system includes at least three base stations for being positioned about a vehicle within a first plane and a fourth base station for being positioned within the vehicle and vertically offset from the first plane to define a second plane with two of the at least three base stations. Each base station is configured to receive the wireless signal and to generate a message indicative of a time of flight of the wireless signal. The fourth base station is further configured to determine a three-dimensional location of the portable device based on the message generated by each base station.
51 Citations
20 Claims
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1. A vehicle system comprising:
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a portable device configured to provide a wireless signal; at least three base stations for being positioned about a vehicle within a first plane; and a fourth base station for being positioned within the vehicle and vertically offset from the first plane to define a second plane with two of the at least three base stations, each base station being configured to receive the wireless signal and to generate a message indicative of a time of flight of the wireless signal, the fourth base station being further configured to determine a three-dimensional location of the portable device based on the message generated by each base station. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An apparatus for determining a three-dimensional location of a portable device in relation to a vehicle, the apparatus comprising:
at least three base stations for being positioned about a vehicle to define a first plane and a main base station for being positioned about the vehicle to define a second plane with two of the at least three base stations such that the second plane intersects the first plane, each of the at least three base stations and the main base station being configured to transmit and receive a wireless signal to and from a portable device and to generate a message indicative of a distance to the portable device based on the wireless signal, the main base station being further configured to; determine a three-dimensional location of the portable device based on the distances between the portable device and each base station within the first plane and the distances between the portable device and each base station within the second plane. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A vehicle system comprising:
a portable device configured to transmit a wireless signal to a first base station, a second base station, and a third base station positioned within a vehicle headliner, and to transmit a wireless signal to a fourth base station positioned within a passenger compartment, each of the first base station, the second base station, the third base station and the fourth base station being configured to receive the wireless signal and to generate a message indicative of a time of flight of the wireless signal, the fourth base station being further configured to determine a three-dimensional location of the portable device based on the message generated by each base station. - View Dependent Claims (16, 17, 18, 19, 20)
Specification