| 摘要 |
PROBLEM TO BE SOLVED: To eliminate an odor of a toilet and to cut electrical charges by providing a toilet system which is comprised of an ammonia sensor, a ventilating fan, a human-being-detective sensor, and a microprocessor for controlling them. SOLUTION: When a human being enters a toilet, the entering is detected by a human-being-detective sensor 5. Then, a microprocessor 4 issues an instruction to a ventilation fan 1 for driving the same. When the person has had a wash and left the toilet, a signal from the human-being-detective sensor is turned off. However, if urine, i.e., an ammonia atmosphere is left in the toilet, it is detected by an ammonia sensor 1, and therefore the ventilating fan 1 continues to be driven. When the ventilating fan 1 has been driven for some time and no ammonia element or few ammonia elements are detected in the toilet, the microprocessor 4 to which the ammonia sensor 1 is connected recognizes the atmosphere of no or little ammonia, and therefore the microprocessor 4 issues an instruction to the ventilating fan 7 for terminating its operation. Therefore, electrical charges can be saved and air in the toilet and the like can be cleaned. |
