摘要 |
A control unit (1200) is disclosed for controlling an actuating means, wherein the control unit (1200) comprises a sensor (104) for sensing from the ambient medium an alarm signal transmitted into the ambient medium, and means (1204) coupled to the sensor for transmitting a signal to the actuating means in response to the alarm signal to actuate the actuating means; further comprising a timing control unit (1210) coupled to the transmitting means (1204) for outputting a timing control signal to the transmitting means for transmission to the actuating means to actuate the actuating means (1000). Also disclosed is an actuating means adapted to be controlled by a timing control signal from a control unit via the ambient medium. |