Method and system for recognizing location by using sound sources with different frequencies
First Claim
1. A method for recognizing a location to control the location of a moving object, the method comprising:
- generating a synchronizing signal for a plurality of ultrasonic satellites;
the plurality of the ultrasonic satellites simultaneously transmitting ultrasonic signals respectively comprising different frequencies from each other, the plurality of the ultrasonic satellites fixed on predetermined static positions;
a receiver, attached to the moving object, receiving the ultrasonic signal and measuring distances between the receiver of the moving object and each of the plurality of the ultrasonic satellites by classifying the frequencies of the ultrasonic signals; and
calculating a current location of the moving object by using the measured distances.
1 Assignment
0 Petitions
Accused Products
Abstract
Provided is a method for recognizing a location to control the location of a moving object, the method including: generating a synchronizing signal for a plurality of ultrasonic satellites; the plurality of the ultrasonic satellites simultaneously transmitting ultrasonic signals respectively comprising different frequencies from each other, the plurality of the ultrasonic satellites fixed on predetermined static positions; a receiver, attached to the moving object, receiving the ultrasonic signal and measuring distances between the receiver of the moving object and each of the plurality of the ultrasonic satellites by classifying the frequencies of the ultrasonic signals; and calculating a current location of the moving object by using the measured distances.
14 Citations
8 Claims
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1. A method for recognizing a location to control the location of a moving object, the method comprising:
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generating a synchronizing signal for a plurality of ultrasonic satellites; the plurality of the ultrasonic satellites simultaneously transmitting ultrasonic signals respectively comprising different frequencies from each other, the plurality of the ultrasonic satellites fixed on predetermined static positions; a receiver, attached to the moving object, receiving the ultrasonic signal and measuring distances between the receiver of the moving object and each of the plurality of the ultrasonic satellites by classifying the frequencies of the ultrasonic signals; and calculating a current location of the moving object by using the measured distances. - View Dependent Claims (2, 3, 4)
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5. A location determination receiver for recognizing a location of a moving object, comprising:
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an ultrasonic antenna; a receiving unit capable of simultaneously processing three or more ultrasonic signals; an operation unit for calculating a distance from each of ultrasonic satellites fixed on predetermined static positions for transmitting each of the ultrasonic signals by using a reception of each of the ultrasonic signals; and a location determining unit for calculating a current location of the receiver by using the distance from each of ultrasonic satellites, wherein the receiver is attached to the moving object to recognize the location of the moving object. - View Dependent Claims (6)
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7. A system for recognizing a location of a moving object, comprising:
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a plurality of ultrasonic transmitters for transmitting an ultrasonic signal comprising a different frequency respectively, the plurality of ultrasonic transmitters fixed on predetermined static positions; a reference signal broadcasting device for supplying a synchronizing signal to each of the ultrasonic transmitters; a ultrasonic receiver for determining its own three-dimensional location by receiving the ultrasonic signals from the ultrasonic transmitters, the ultrasonic receiver attached to the moving object; and a server for providing location coordinates of the plurality of the ultrasonic transmitters, wherein the ultrasonic transmitters simultaneously transmit the ultrasonic signals in accordance with the control of a controller. - View Dependent Claims (8)
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Specification