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一、概述微机信号报警系统在大型整套设备中用作信号报警和状态监视,通常监测报警总数(故障信号)在100点以上和报警控制较复杂时采用这种单片微机控制的信号报警系统比较合适。例如大型发电机组运行中各个参数的越限报警、大型化工厂的防护报警以及银行仓库群的安全监测控制等。整个信号报警系统采用主从结构的计算机控制系统,主机和从机均采用Intel8031单片微机组成,由多个从机对一百多点的报警信号监测处理,监测到故障点时从机立即由程序控制闪光显示和音响报警,以引起值班人员注意,查找故障源。主从式结构的报警控制框图如图1所示。各个从机通过8031单片机本身的串
First, an overview of computer signal alarm system in a large package of equipment used for signal alarm and status monitoring, usually the total number of alarm monitoring (fault signal) at more than 100 points and when the alarm control is more complex when using this single-chip microprocessor-controlled signal alarm system comparison Suitable. For example, large-scale genset running in the various parameters of the limit alarm, large chemical plant protection alarm and bank warehouse group safety monitoring control. The entire signal alarm system using master-slave structure of the computer control system, the host and the slave are used Intel8031 single-chip microcomputer, by a number of slave on more than 100 alarm signal monitoring and monitoring to the point of failure from the machine immediately by the The program controls the flash display and audible alarm to alert the attendant to find the source of the fault. Master-slave structure of the alarm control block diagram shown in Figure 1. Each slave through the 8031 microcontroller’s own string