Water typically does not present a uniform acoustic transmission medium as the pace of sound propagation and other signal transmission traits differ with water temperature, salinity, and depth (or pressure) each of which may range with dive location. Therefore, the transmission time between a transmitting unit and a receiving unit vary with the situation of a dive (i.e., based on the water chemical makeup) and ItagPro typically even with a planned depth for a dive. Such devices, programs, and methods ideally could be tailored for use in various dive areas and below different water conditions and can be readily adapted to be used with a number of divers and dive groups of varying expertise and experience. 5 ft for unskilled divers or for harmful conditions while a fifty-foot, hundred-foot, ItagPro 2 hundred-foot, and infrequently greater security vary may be set for skilled divers or iTagPro portable relatively secure diving conditions. An alert will be automatically or manually transmitted to and from the dive master when the space is exceeded.

An alarm is activated when the gap condition is met by the found distance or when activated by a user. The space is then discovered from the measured time. FIG. 1 is a block diagram generally illustrating the system of the current invention. FIG. 2 is a circulation chart typically illustrating the method of the current invention. FIG. 3 is a block diagram illustrating in more element one embodiment of the means for discovering distance in FIG. 1 . FIG. 4 is a move chart illustrating in more element the step of discovering distance in FIG. 2 . FIG. 5 is a block diagram illustrating in additional detail one embodiment of the means for discovering distance in FIG. 1 . FIG. 6 is a move chart illustrating in more detail the step of discovering distance in FIG. 2 . FIG. 7 is a block diagram illustrating in more element one embodiment of the means for discovering distance in FIG. 1 .

FIG. 8 is a movement chart illustrating in more detail the step of discovering distance in FIG. 2 . FIG. 9 is a entrance view of a diver communication device of the present invention illustrating a show surface showing dive time, current separation distance settings, affordable item tracker current message from dive accomplice or iTagPro online dive master, and communication frequency together with other options of the diver communication device. FIG. 10 is a aspect view of the exterior of the diver communication machine of FIG. 9 illustrating the battery compartment. FIG. 12 is another practical block drawing just like FIGS. 11A and iTagPro online 11B illustrating the use of a dive master communication gadget for iTagPro online concurrently monitoring divers in two separately communicating dive groups which might be diving utilizing different security distances. FIG. 13 is a entrance view of a dive grasp communication system or grasp controller illustrating features just like the diver communication system of FIG. 9 and likewise illustrating options facilitating monitoring and communicating with multiple diver and dive groups.

Additionally, the diver communication system and technique is helpful for permitting multiple dive groups diving within a single dive area to speak with each other with out inflicting communication problems. This discussion consists of a proof of the usage of preset separation distances and the automatic transmission of alert signals when the determined distance between two devices exceeds the preset separation distance for the two units. An vital side of the invention is the combining of a number of features in a single diver communication machine and iTagPro online how the unique combination of those functions facilitates efficient communication between diving partners and, considerably, between three or more divers within a dive group (even when diving in proximity to other dive groups) and iTagPro online between a dive master and divers in multiple dive teams. FIG. 1 illustrates a system 2 for alerting when a first machine four and a second machine 6 are separated by a preset distance. System 2 contains a way 8 for discovering a distance 10 between first device 4 and a second gadget 6 , a comparator 12 , and an alarm 14 .

System 2 might also embody varied additions corresponding to a user enter interface 16 and a storage gadget 18 for storing a preset distance condition 20 or executable instructions. First gadget four and second device 6 may be of any shape or design. System 2 may have a variety of uses with every use having its own desired shape. 2 and second device 6 are conveniently embodied in a shape to be worn on a diver's wrist or hooked up to the divers Buoyancy Control Device (BCD). Additionally, when utilized by divers, iTagPro online it may be desirable for first gadget 4 and second gadget 6 to incorporate conventional diving options comparable to a dive time indicator itagpro bluetooth or other indicators useful for divers. Four and second device 6 are being described as separate devices. Four and second machine 6 each embrace all of the parts of the opposite device. In that embodiment, every of two or more divers could be in a position to maintain monitor of the gap between them.