Abstract: This invention integrates a novel technique for mappers to efficiently collect attributes utilizing various wireless systems such as bluetooth. The wireless technique in the data-gathering device allows the flag-man/data gatherer to input useful information into the device, which can readily be available to the mapper at the other end. This invention makes the traditional mapping technique much more efficient and reliable. Due to the ability to exchange data promptly, it nearly diminishes the room for discrepancies. This device overcomes mainly two deficiencies in current mapping device: the need to use a wire to connect data recording device to a data-collecting device, and the need to use some form of oral communication to relay the attributes of the data being collected. This proves to be very efficient by cutting down the investigation data collection time to nearly half, especially at the times when there is heavy traffic and the accident needs to be cleared up as quickly as possible.

Abstract: This invention allows personnel located on two different structures, such as two ships, to continually monitor the separation distance between the two structures, with all of the necessary equipment being located on only one of the structures. This is accomplished using a laser range finder, or other range sensor, to continually measure separation distance and send it electronically to various displays. The displays are positioned and sized such that all involved personnel can view the continually updating separation distances. The invention incorporates displays large enough to be viewed ship-to-ship in direct sunlight, in addition to smaller displays. The displays are dimmable or backlit for night viewing and include a safety feature that turns them off when communication is lost with any range sensor. A strobe on the display helps personnel find where the display has been positioned, such as on a ships gunwale or hand railing.