摘要
基于AT89C系列单片机服务评价系统,由一台评价主控机、多台窗口评价器和一台PC机组成。评价主控机由主控、数据存储及232电平转换单元、电源输入部分及485总线接口单组成。评价器和PC机作为从机,负责接收处理主控机数据,并根据数据中本机的星级信息,控制相应LED指示灯。主控机通过轮询方式与各从机通信。
The Service-evaluating System Based on AT89C series single-chip computer consists of a host, a lot of window evaluating device, and a PC. Evaluating host is composed of main control, data storage, 232 level conversion unit, power input and 485 bus interface. Window evaluating device and PC is used as slave, it receives and processes data from host, and relevant LED is controlled according to star-level information in local data. The communication between host and slave is realized through polling mode.
出处
《兵工自动化》
2006年第1期31-33,共3页
Ordnance Industry Automation
