| 摘要 |
<p>Provided is a billing method for use of a water purification system, which is capable of imparting incentives of use for the water purification system. The water purification system of the present invention is provided with a water purification device (5) having a controller (10), and a monitoring server (7), having a controller (12), which is connected via the water purification device (5) and a public network (8), such that a filtration-use filter (19) of the water purification device (5) has a water quality sensor (20) for measuring water quality data of inflowing water and a water quality sensor (21) for measuring water quality data of purified water, and the water quality data measured by the water quality sensors (20 and 21) is transmitted to the controller (10) and the controller (12), wherein the usage fee of the water purification system is calculated according to the water quality improvement rate which is calculated on the basis of the water quality data of the inflowing water and the water quality data of the purified water.</p> |
