GPS based search and rescue transceiver
First Claim
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1. A survival radio, comprising:
- a GPS module for receiving GPS signals and for generating GPS location information;
a microcontroller comprising a microprocessor, first memory containing program information for operation of said microprocessor and a first predetermined identification code for specifically identifying said survival radio and second memory containing data for operation of said survival radio said data including said GPS location information; and
a transceiver for providing Line of Sight (LOS) communications; and
whereby said microcontroller is programmed such that upon receipt by said transceiver of an interrogation message including said first predetermined identification code, said microcontroller obtains said GPS location information and generates an encoded data message in a predetermined format and a predetermined length which is supplied to said transceiver and said transceiver operates to transmit said encoded message, wherein said transceiver transmits and receives message data in an audio band utilizing minimum phase shift-keying.
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Abstract
A survival radio of the type useable in search and rescue operations and carried by the party to be rescued is described. The survival radio includes a GPS receiver, a transceiver and a microcontroller. The microcontroller responds to interrogation messages containing a predetermined identification code for the survival radio to cause a transceiver to transmit a geographic location of the survival radio as derived from GPS signals.
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Citations
19 Claims
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1. A survival radio, comprising:
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a GPS module for receiving GPS signals and for generating GPS location information; a microcontroller comprising a microprocessor, first memory containing program information for operation of said microprocessor and a first predetermined identification code for specifically identifying said survival radio and second memory containing data for operation of said survival radio said data including said GPS location information; and a transceiver for providing Line of Sight (LOS) communications; and
whereby said microcontroller is programmed such that upon receipt by said transceiver of an interrogation message including said first predetermined identification code, said microcontroller obtains said GPS location information and generates an encoded data message in a predetermined format and a predetermined length which is supplied to said transceiver and said transceiver operates to transmit said encoded message, wherein said transceiver transmits and receives message data in an audio band utilizing minimum phase shift-keying. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A method for operating a survival radio of a search and rescue system, the survival radio including a GPS module for receiving GPS signals and for generating GPS location information, the survival radio also including a transceiver for providing Line of Sight (LOS) communications, the method comprising the steps of:
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storing a first predetermined identification code for specifically identifying the survival radio; storing a GPS location of the survival radio based upon the GPS signals received by the GPS module; receiving an interrogation message; generating and transmitting an encoded data message in a predetermined format and a predetermined length when said interrogation message includes said first predetermined identification code, wherein said encoded data message is transmitted in an audio band utilizing minimum phase shift-keying. - View Dependent Claims (16, 17, 18, 19)
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Specification