| 摘要 |
PURPOSE: To provide the emergency alarm device which quickly alarms of an emergency to each room in a KARAOKE (recorded accompaniment) box. CONSTITUTION: In the KARAOKE box, a host device 1 and a KARAOKE device 2 installed in each room are connected by a coaxial cable. Not only musical composition data but also alarm picture data to be displayed for an emergency are stored in each KARAOKE device 2. An alarm button 3 is connected to the host device 1, and a sensor 5 which detects a fire and an earthquwake is connected to the coaxial cable through an interface 4. When the alarm button 3 is depressed or a signal of the occurrence of an emergency is inputted from the sensor 5 or an emergency code is inputted from a keyboard 11, the host device 1 outputs an emergency signal to each KARAOKE device 2. When receiving the emergency signal, the KARAOKE device 2 stops KARAOKE music (musical composition data) on the way of performance by interrupt operation to display the alarm picture data. |
