| 摘要 |
PROBLEM TO BE SOLVED: To provide a simulation system of neutral buoyancy wherein, when a user holds a mouthpiece in the user's mouth and breathes while viewing a screen of a computer instead of actually diving, a diver on the screen goes up and down so that the user trains for timing of respiration.SOLUTION: In the simulation system, user's actual respiratory information as to whether the user is breathing in the air or breathing out the air, and the strength of the respiration (amount of flow) is converted into an electric signal by using a respiratory information converter pressure sensor (or a flow sensor). After being amplified with an operational amplifier or the like, the signal is fetched as an analog signal of a USB microcomputer or the like, converted into a digital signal by the microcomputer so as to be readable by the PC side. The PC, by using exclusive software, displays a simulation image of diving on a PC monitor. |
