A smart clothing and backpack system enables a user to perform many actions. The smart clothing includes circuitry and/or is made of a conductive material enclosed in an insulation material. The smart clothing includes a set of sensors configured to detect body information. The smart clothing includes multiple electromagnets configured to adjust a size of the smart clothing. The electromagnets are configured to have an increased attraction to make the smart clothing tighter on the body of the user. The system includes a smart backpack to communicate with the smart clothing. The smart backpack includes a Radio Frequency IDentification (RFID) reader configured to detect RFID tags on or in items within the smart backpack. Many other features are able to be implemented with the smart clothing and backpack system. The smart clothing is able to include a wetsuit configured to communicate with a surfboard and/or a backpack.

A system and method for monitoring biometric data of a diver and signaling those data from a first communication device to other communication devices, e.g., those of other divers, on a ship or buoy. A signal generated from a device of the diver can generate a diver identifier, an indication of a stress state of the diver and the diver's location.

A system and method for monitoring biometric data of a diver and signaling those data from a first communication device to other communication devices, e.g., those of other divers, on a ship or buoy. A signal generated from a device of the diver can generate a diver identifier, an indication of a stress state of the diver and the diver's location.

Exemplary systems enable operation of mobile devices underwater. Antennas on a buoy assembly allow a mobile device to maintain wireless communications. A series of cable segments connect a buoy assembly to a waterproof case capable of sealing a mobile device.

Exemplary systems enable operation of mobile devices underwater. Antennas on a buoy assembly allow a mobile device to maintain wireless communications. A series of cable segments connect a buoy assembly to a waterproof case capable of sealing a mobile device.

Dive computers incorporating a variety of features are disclosed. One embodiment of the invention includes a dive computer including a microprocessor, memory configured to store a software application, a pressure transducer configured to determine depth information, and a communications device configured to communicate with external devices, wherein the software application configures the microprocessor to create a dive log stored in memory, wherein the dive log includes recorded information including depth of submersion information recorded from the pressure transducer, and transmit the dive log using the communications device.

Dive computers incorporating a variety of features are disclosed. One embodiment of the invention includes a dive computer including a microprocessor, memory configured to store a software application, a pressure transducer configured to determine depth information, and a communications device configured to communicate with external devices, wherein the software application configures the microprocessor to create a dive log stored in memory, wherein the dive log includes recorded information including depth of submersion information recorded from the pressure transducer, and transmit the dive log using the communications device.

The system (100) for positioning an underwater device (105, 110, 115, 120), comprises: at least two surface transponders (125, 130, 135) comprising a receiver (160) for receiving radio signals transmitted by a geolocation system (200); each surface transponder comprising: a means (180) for estimating at least one radio pseudo-distance; an attachment (185) to a float; and a means (140) for communicating information representative of the radio pseudo-distances; and an underwater acoustic transmitter (140); the underwater device comprising: a means (145) for receiving information representative of the radio pseudo-distances; an acoustic signal receiver (145); a means (150) for determining one or more acoustic pseudo-distances between at least two underwater acoustic transmitters and the underwater device; and a means (155) for calculating the position of the device in a terrestrial frame of reference centered on one of the surface transponders.

The system (100) for positioning an underwater device (105, 110, 115, 120), comprises: at least two surface transponders (125, 130, 135) comprising a receiver (160) for receiving radio signals transmitted by a geolocation system (200); each surface transponder comprising: a means (180) for estimating at least one radio pseudo-distance; an attachment (185) to a float; and a means (140) for communicating information representative of the radio pseudo-distances; and an underwater acoustic transmitter (140); the underwater device comprising: a means (145) for receiving information representative of the radio pseudo-distances; an acoustic signal receiver (145); a means (150) for determining one or more acoustic pseudo-distances between at least two underwater acoustic transmitters and the underwater device; and a means (155) for calculating the position of the device in a terrestrial frame of reference centered on one of the surface transponders.

It is described an emergency device (100) for divers comprising a watertight case (101) structured to assume a submerged position and an emerged position. The watertight case includes: a depth sensor (102) configured to determine a depth value associated with the submerged position assumed by the emergency device when a user activates an emergency procedure; a positioning device (103) configured to determine a geographic position, including latitude and longitude, assumed by the emergency device (100) in the emerged position; a GSM or satellite telephone transmitter/receiver (104) configured to transmit an emergency message comprising said depth value and said geographic position.