User:Oframalkautc/Sandbox

Underwater Digital Interface (UDI) is a device designed to enhance the diving experience with a combination of technologies for communication, navigation and safety.

Main features

 * Two-way digital text messaging communicator
 * Diver SOS and Remote SOS
 * Homing tool
 * Compass
 * RGBM Diving computer including PC simulator
 * Diving logger PC connectivity

The technology is based on a system of networks. Each network links up to 14 divers via individual units worn on the lower arm with an elastic strap or attached on the inflator. A boat unit supports up to 4 networks using four different frequency ranges.

UDI is an essential tool for improving diving safety. It allows a diver to communicate with any other diver in the network and with the boat unit, without the need for cumbersome voice communication gear. This innovation is a breakthrough in the digital underwater communications technology and is protected by a number of patents (among them US 6125080, US 6120859, US 6272072 and more).

SOS
A diver in distress can send an SOS signal to other divers or to a boat unit. The receiving diver acknowledges the SOS call and receives graphical 3D instructions on his UDI unit that allow him to navigate his way to the diver in distress and provide assistance.

Remote SOS
If a diver suspects that his buddy or a nearby diver may be in distress, he or she can send a remote SOS signal to the diver. If the diver does not require assistance, he can choose to disable the signal. In case he does not disable it and in fact is in distress, his unit will activate an automatic SOS signal. The SOS signal is received by all other divers (within 1,000m or 1,100 yards) using the UDI system, allowing them to navigate to the diver in distress following the graphical instructions on their clear view screens.

Text messages
Based on text messaging technology, the UDI system allows divers to transmit pre-saved messages to other divers in the network, at a range of up to 500 meters (550 yards). Depending on the individual needs of the team, divers can create up to 14 text messages that are saved in the memory of the unit. When a message is sent, a received signal activates an audible alert and lights up the graphic LCD screen to notify the recipient. The recipient sends an acknowledgement back to the sender. A Messages can also be transmitted between individual units and the boat unit. The result is an underwater digital network that connects divers together to promote safety and to enable more sophisticated communication to enhance the diving experience for all.

Homing
With the UDI system, the boat unit can send a Homing signal to assist divers in locating the boat. Each diver in the network receives the signal and can either mask it – until he or she is ready to return to base – or follow it, using the graphical 3D instructions on his UDI screen. When a diver sends a Remote Homing message to a boat unit, the boat unit transmits a Homing signal. The diver then follows the graphical instructions on his screen, allowing him to navigate towards the boat with ease.