| 摘要 |
PROBLEM TO BE SOLVED: To provide a water heater simplifying the installation works of sensors and having a human body sensor that is capable of detecting the entry into and exit from a bathroom and a bathtub quickly and surely. SOLUTION: This device features that is comprises a bathroom having a bathtub, a washing area and an entrance to the washing area, a human body detecting sensor picking up the image of the movement of a human body in the bathroom for image processing, an infrared sensor detecting the human body by infrared rays, a human body sensor storing the human body detecting sensor and the infrared sensor in one case and a water heater connected to the human body sensor. |
