GPS the system and the manner null which are expanded being the underwater navigation system which

摘要

The navigation system expands satellite navigation to the diver. The navigation system possesses the water device and the plural underwater beacon devices. It communicates the water device, with the receiver and the plural underwater beacon devices in order to receive the navigation signal from the earth orbit circumference satellite, it includes with the sonar transmitter in order to transmit the information of position to the processing circuit and the underwater beacon device in order to transmit the information of position to the aforementioned underwater beacon device. The beacon device while the processing circuit and the water device in order to decide the position of the beacon device on the basis of the information of the position where it is received from the water device are floating in the water surface receives the information of position from the water device, includes with the sonar tranceiver in order to transmit the information of position to the diver device in order to execute navigation assistance vis-a-vis the diver device.