Apparatus and method for transmitting/receiving an emergency rescue request using UWB signals
First Claim
1. An emergency rescue request method using Ultra-Wideband (UWB) signals in a mobile communication terminal, the method comprising the steps of:
- receiving a control message including control contents for an emergency rescue mode of the mobile communication terminal;
shifting to an emergency rescue mode according to the received control message;
generating UWB signals when the mobile communication terminal is in the emergency rescue mode; and
broadcasting the generated UWB signals.
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Accused Products
Abstract
An apparatus and a method for transmitting/receiving emergency rescue signals are disclosed. In the apparatus and the method, when an emergency occurs, it is possible to provide a function capable of notifying a place at which such an emergency has occurred by means of a corresponding terminal. Accordingly, when a rescue request is accepted, a rescue center sends a rescue team to the general position of the terminal based on the GPS position information or the reporter'"'"'s statement, and finds out an exact point for a corresponding terminal by means of a searching apparatus. Herein, the rescue team receives UWB signals received from the corresponding terminal of a victim at the already understood general position through the searching apparatus, and finds the victim'"'"'s exact position.
27 Citations
17 Claims
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1. An emergency rescue request method using Ultra-Wideband (UWB) signals in a mobile communication terminal, the method comprising the steps of:
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receiving a control message including control contents for an emergency rescue mode of the mobile communication terminal;
shifting to an emergency rescue mode according to the received control message;
generating UWB signals when the mobile communication terminal is in the emergency rescue mode; and
broadcasting the generated UWB signals. - View Dependent Claims (2, 3)
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4. A method for transmitting an emergency rescue request using Ultra-Wideband (UWB) signals in a mobile communication terminal, the method comprising the steps of:
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calculating position information of the mobile communication terminal and generating UWB signals, when the mobile communication terminal is in an emergency rescue request mode;
transmitting the calculated position information to a rescue center; and
broadcasting the generated UWB signals. - View Dependent Claims (5, 6, 7, 8)
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9. An emergency rescue request apparatus using Ultra-Wideband (UWB) signals, the apparatus comprising:
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a received signal strength measurement unit for periodically measuring Received Signal Strength Indication (RSSI);
a baseband processor for generating a final bit stream including a bit stream, which has a predetermined pattern representing emergency rescue request signals, and information for the apparatus;
a UWB signal output unit for outputting the UWB signals obtained by UWB-modulating the final bit stream provided from the baseband processor; and
a controller for recognizing occurrence of an emergency according to an output value from the received signal strength measurement unit, providing the baseband processor with the bit stream, which has the predetermined pattern representing the emergency rescue request signals, and the information for the apparatus, and thus controlling the UWB signals to be transmitted from the apparatus. - View Dependent Claims (10)
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11. An emergency rescue request apparatus using Ultra-Wideband (UWB) signals, the apparatus comprising:
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a baseband processor for generating a final bit stream including a bit stream, which has a predetermined pattern representing emergency rescue request signals, and information for the apparatus;
a UWB signal output unit for outputting the UWB signals obtained by UWB-modulating the final bit stream provided from the baseband processor; and
a controller for receiving a control message including control contents for an emergency rescue mode, analyzing the received control message, generating the UWB signals according to the analysis result, and controlling the UWB signals to be transmitted from the apparatus. - View Dependent Claims (12, 13)
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14. An apparatus for receiving an emergency rescue request using Ultra-Wideband (UWB) signals, the apparatus comprising:
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a UWB signal receiver having four antennas for receiving UWB signals from a predetermined terminal;
a UWB signal amplifier for amplifying signals inputted from the UWB signal receiver;
a cross-correlator for cross-correlating signals inputted from the UWB signal amplifier;
a peak detector for detecting a peak value through a value outputted from the cross-correlator and calculating a time difference;
a coordinate operation unit for calculating a position coordinate of the terminal by means of the time difference calculated through the peak detector; and
a coordinate display unit for displaying the calculated position coordinate. - View Dependent Claims (15, 16, 17)
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Specification