| 摘要 |
PROBLEM TO BE SOLVED: To provide a ventilation system for detecting an abnormal situation such as a fire and intrusion or the like and saving trouble in installation and maintenance. SOLUTION: The ventilation system is provided with a ventilator 1 for ventilating a building, a smoke sensor 11 for detecting abnormality of such as the fire, and a buzzer 12 for alerting the abnormality. COPYRIGHT: (C)2005,JPO&NCIPI
|
