| abstract |
(57) [Abstract] [Problem] To automatically determine whether or not parts need to be replaced and whether or not there is a defect in maintenance and inspection of an oxygen concentrator and eliminate human error. SOLUTION: As a data, a table number of the oxygen concentrator 1 and a flow rate and an oxygen concentration of the oxygen concentrator 1 measured by a flow meter 21 and a concentration meter 22, respectively, are inputted as data. These data are transmitted from the terminal device 2 to the host computer 3 via the communication network 4. The host computer 3 determines whether the oxygen concentrator 1 is normal or defective based on these data, and transmits the determination result to the terminal device 2 via the communication network 4. The terminal device 2 displays the received determination result on the display unit. Further, the terminal device 2 receives the state / performance data stored when the oxygen concentrator 1 is operating from the oxygen concentrator 1 and, based on the state / performance data, determines whether the oxygen concentrator 1 is normal / normal. The failure is determined, and the determination result is displayed on the display unit. |