Scuba diver communication and tracking device
First Claim
1. A communication device for use underwater by a scuba diver for communicating with and tracking relative direction of one or more other divers, comprising:
- a transmitter and receiver assembly transmitting distance signals to and receiving distance signals from an other one of the communication devices, wherein the distance signals are transmitted and received on a frequency defined by a communication channel;
a data processor processing the received distance signals to determine a separation distance between the communication device and the other device and for comparing the separation distance to a safety distance; and
a display and control assembly including a display for indicating the communication channel and the safety distance of the communication device and for indicating when the data processor determines the separation distance exceeds the safety distance.
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Abstract
A multi-functional underwater device for use by scuba divers for communicating with and tracking the relative direction of one or more other divers. The device is configured to monitor and communicate with multiple other devices simultaneously and includes a transmitter and receiver assembly for transmitting location signals to and receiving location signals from other communication devices on frequencies defined by a communication channel setting for the device. A processor processes signals to determine separation distance between the devices and to compare separation distances to a safety distance. A display assembly indicates communication channel and safety distance for the communication device and indicates when the separation distance is exceeded. The display assembly includes an input portion operable to set the safety distance and/or the communication channel. The transmitter and receiver assembly transmits and receives communication signals, such as check diver and emergency signals, at frequencies defined by the communication channel.
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Citations
38 Claims
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1. A communication device for use underwater by a scuba diver for communicating with and tracking relative direction of one or more other divers, comprising:
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a transmitter and receiver assembly transmitting distance signals to and receiving distance signals from an other one of the communication devices, wherein the distance signals are transmitted and received on a frequency defined by a communication channel;
a data processor processing the received distance signals to determine a separation distance between the communication device and the other device and for comparing the separation distance to a safety distance; and
a display and control assembly including a display for indicating the communication channel and the safety distance of the communication device and for indicating when the data processor determines the separation distance exceeds the safety distance. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 16, 17, 18, 19)
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15. A method for providing an alert when a distance between two devices exceeds a distance, the method comprising:
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first and second devices each discovering a distance between the first and second devices;
the first device comparing the discovered distance to a first distance condition and alarming when the first distance condition is met by the discovered distance; and
the second device comparing the discovered distance to a second distance condition and alarming when the second distance condition is met by the discovered distance;
wherein the discovering the distance includes;
the first device generating a first signal having an initial signal strength and the second device generating a second signal having an initial signal strength, the signal strength of the first and second signals diminishing as the first and second signals travel between the first device and the second device;
the second device receiving the first signal and the first device receiving the second signal;
the second device measuring the signal strength of the received first signal and the first device measuring the signal strength of the received second signal; and
the second device discovering the distance from the measured first signal strength and the first device discovering the distance from the measured second signal strength.
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20. A system for providing an alert when a distance between two devices exceeds a distance, the system comprising a first device and a second device, each device having:
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means for discovering a distance between the first and the second device;
means for comparing the distance to a distance condition; and
means for alarming when the distance condition is met by the discovered distance;
wherein the means for discovering the distance includes;
the first device having means for discovering the location of the first device;
the second device having means for discovering the location of the second device;
the first device having means for transmitting the location of the first device to the second device and the second device having means for transmitting the location of the second device to the first device; and
the first and second devices each having means for comparing the location of the first device to the location of the second device to discover the distance between the first device and the second device. - View Dependent Claims (21, 22, 23, 24, 26, 27, 28, 29, 30, 31, 32)
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25. A system for providing an alert when a distance between two devices exceeds a distance, the system comprising a first device and a second device, each device having:
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a signal generator;
a signal receiver for receiving a signal from the other of the first and second devices;
means for discovering, from a signal received from the other of the first and second devices, a distance between the first and second devices;
means for comparing the distance to a distance condition; and
an alarm for alarming when the distance condition is met by the discovered distance;
wherein the signal generator includes means for generating a signal having an initial signal strength, the signal strength diminishing as the signal travels between the first device and the second device and wherein the means for discovering the distance includes means for measuring the signal strength of the received signal and means for discovering the distance from the measured signal strength.
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33. A device for use by a scuba diver in communicating underwater with two or more other scuba divers, comprising:
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a first receiver receiving a location signal from a second one of the devices spaced apart a first distance from the device;
a second receiver receiving a location signal from a third one of the devices spaced apart a second distance from the device;
a data processor for processing the location signals to determine the first and second distances, for determining when the first and second distances exceed first and second safety distances respectively, and when either of the determined first and second distances exceeds the safety distances, initiating an alarm; and
a display assembly operable by the data processor for indicating the alarm. - View Dependent Claims (34, 35, 36, 37, 38)
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Specification