| 摘要 |
PROBLEM TO BE SOLVED: To provide an automatic water supplying system which manages a water-supplying target such as soil after the finish of water supplying, keeps or adjusts the amount of water of the target at an adequate level and enables the excellent growth of plants, and at the same time which prevents the wasting of water. SOLUTION: The automatic water supplying system comprises at least a water sensor with which the deficiency of water in a water-supplying target can be detected, a water-supplying means, and a controlling means for controlling the start and the finish of the operation of the water-supplying means with a timer. The controlling means measures a specific period of time by the timer after the finish of the operation of the water supplying means, and when the shortage of water in the water-supplying target is detected by the water sensor in the specific period of time, the operation of the water-supplying means is started. |
