| 摘要 |
<p>A security monitoring system includes several monitors. Several monitors (1) with CPU inside are connected with each other in different positions of monitored area. Every monitor (1) is provided with several external detectors(12), alarms(9) and security combine devices(13). Any monitor(1) sends control signal to its alarm(9) once receiving a disaster or abnormal condition signal, and sends the disaster or abnormal condition signal to the other monitors(1). After any monitor(1) receives the disaster or abnormal condition signal and sends the disaster or abnormal condition signal to the other monitors(1), the other monitors(1) stop sending alarm control signals to their alarms(9) only when the any monitor(1) sends a signal of showing the disappearing of the disaster or abnormal condition. The present invention has dispersed control centers. When one or several monitors(1) have troubles, the whole system still could be controlled. Meanwhile, the cost is saved because of being integrated many kinds of detectors(12), alarms(9) and security combine devices(13).</p> |
