| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an accounting method for a use of a water purification system capable of giving an incentive for the use of the water purification system. <P>SOLUTION: This water purification system includes: a water purification device with a controller; and a monitoring server connected to the water purification device via a public network and having a controller. A filtration filter of the water purification device includes a water quality sensor for measuring water quality data of inflow water, and a water quality sensor for measuring water quality data of purified water, and the water quality data measured by the water quality sensors are transmitted to the controller of the water purification device and the controller of the monitoring server. The use charge of the water purification system is calculated according to the water quality improvement rate calculated based on the water quality data of the inflow water and the water quality data of the purified water. <P>COPYRIGHT: (C)2012,JPO&INPIT |
