APPARATUS AND METHOD FOR PROVIDING INDOOR LOCATION OR POSITION DETERMINATION OF OBJECT DEVICES USING BUILDING INFORMATION AND/OR POWERLINES
First Claim
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1. A mobile computer comprising:
- circuitry configured to transmit a first and second ultrasound signal;
circuitry configured to receive a reflection of the first and second ultrasound signal off a first and second wall of a room in a building where the mobile computer is present;
circuitry configured to determine an orientation of the mobile computer in the room;
circuitry configured to determine a length and width of the room based on the reflection of the first and second ultrasound signal off the first and second wall and the orientation; and
circuitry configured to determine a location of the room within the building where the mobile computer is currently located based on comparison of the length and width of the room to room layout information of the building stored in the mobile computer.
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Accused Products
Abstract
An apparatus and method for providing indoor detection, location, position, or track determination of object devices using building information and/or powerlines. An object device may determine the dimensions of the interior of a building and compare it to known information about the dimensions of the building to determine that it'"'"'s indoors and/or also determine its exact location or position in the building. An object device may also determine dimensions in an enclosure in order to identify if it is in an automobile, aircraft, or any other conveyance.
181 Citations
2 Claims
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1. A mobile computer comprising:
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circuitry configured to transmit a first and second ultrasound signal; circuitry configured to receive a reflection of the first and second ultrasound signal off a first and second wall of a room in a building where the mobile computer is present; circuitry configured to determine an orientation of the mobile computer in the room; circuitry configured to determine a length and width of the room based on the reflection of the first and second ultrasound signal off the first and second wall and the orientation; and circuitry configured to determine a location of the room within the building where the mobile computer is currently located based on comparison of the length and width of the room to room layout information of the building stored in the mobile computer.
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2. A method to locate a mobile computer indoors, comprising:
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transmitting by the mobile computer a first and second ultrasound signal; receiving by the mobile computer a reflection of the first and second ultrasound signal off a first and second wall of a room in a building where the mobile computer is present; determining by the mobile computer an orientation of the mobile computer in the room; determining by the mobile computer a length and width of the room based on the reflection of the first and second ultrasound signal off the first and second wall and the orientation; and determining by the mobile computer a location of the room within the building where the mobile computer is currently located based on comparison of the length and width of the room to room layout information of the building stored in the mobile computer.
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Specification