摘要
来自电话报警器音频译码芯片的报警信号,经12887芯片I/O口传给与大屏幕灯箱相连的继电器,当报警人拨通报警号码,信号通过报警器自动传入大屏幕,大屏幕相应区域的PLC继电器线路闭合,彩灯发出闪烁信号报警,实现油库消防自动报警。
The alarm signal came from audio frequency coding chip of telephone annunciator is sent to relay connected big screen lamp-box via I/O interface of 12887 chip. If a person dials alarm numbers, the signal can be automatically sent into big screen, circuitry of PLC relay in area correspond with big screen can close. Color lamp flickers to realize auto-alarm of fire protection of bulk plant.
出处
《兵工自动化》
2004年第3期8-8,共1页
Ordnance Industry Automation
