| 摘要 |
A self-contained alarm unit for use in a network comprising a plurality of similar self-contained alarm units together with at least one sensor unit for sensing an alarm event and a remote control unit, the alarm unit comprising an enclosure in which is provided an alert generator for generating an audible or visual alert, a power supply, a receiver for receiving an alarm signal from the sensor unit, an alert signal from another alarm unit, and a disarm signal from another alarm unit or the remote control unit, a transmitter for transmitting an alert signal to another self-contained alarm unit, or the remote control unit and a disarm signal to another self-contained alarm unit; and a control module comprising a processor, wherein the processor is adapted to execute instructions so as to: control the alert generator so as to generate a continuous or repeating alert in response to the alarm signal or the alert signal being received by the receiver, control the alert generator to stop generating the continuous or repeating alert in response to the disarm signal being received by the receiver, control the transmitter to transmit the alert signal in response to the alarm signal being received by the receiver; and control the transmitter to transmit the disarm signal in response to the disarm signal being received by the receiver. |
