摘要
介绍了一种用于教室入座人数统计的分布式自动化系统.该系统在每间教室安装一个以AT89C51单片机为核心的人员进出信息感知和处理子模块,并通过nRF2401无线发送芯片将这些信息编码发送至主模块.在主模块中将每个子模块传入的信息分别进行解码和运算,然后通过串口将其送入PC机进行处理并显示,从而远程获取教室的入座信息.经测试,该系统性能可靠,同时,系统结构简单,成本低廉,具有较高的应用价值.
In this paper a new distributed automatic system for classroom population counting is introduced. In each classroom a population in or out information acquisition and processing sub-block which is based on a AT89C51 single-chip microcomputer is installed. Information coded by the sub-block is sent to main-block through nRF2401 wireless transmission chip. The information is decoded and computed in the main-block and transmitted to PC by serial port. Information is treated and display in the PC and remote-acquiring can be achieved. The test show high reliability simple structions and low prics of the system.
出处
《中央民族大学学报（自然科学版）》
2009年第3期64-72,共9页
Journal of Minzu University of China(Natural Sciences Edition)
基金
中央民族大学URTP基金资助项目(No.0558032)
获"中央民族大学2007年URTP项目优秀成果奖"
关键词
单片机
光电传感器
数据无线传输
串行通信
VB显示系统
single-chip microcomputer
photoelectric sensor
data wireless transmission
serial communication
VB display system
