基于RS-485总线的温室远程监控系统

本文采用先进的计算机技术、微处理器控制技术和智能传感器数据采集技术,设计出温室远程监控系统。本系统由一台PC机与多个微处理器装置组成主从式分布结构:下位机采用性价比高的单片机,主要实现对温室环境参数的数据采集和控制工作;上位机采用PC机,主要用于对环境参数数据的管理和对控制参数的设置工作。系统采用半双工式RS-485总线型通信网络和累加校验通信算法进行数据传输。利用VB6.0开发出了交互的友好人机界面。通过实时读取和存储温室内环境参数值,实现了对温度、湿度两个温室环境参数的管理,方便查阅。

Parking Lot Management System Based On RFID Technology

This paper uses advanced computer technology,micro-electronic control technology and intelligent sensors to design a remote monitoring system of greenhouse.This system consists of one personal computer and some microprocessors,making up a principal and subordinate distributed structure.The slave uses the singlechip whit a high performance,and realizes the collection of the environmental parameters of the greenhouse and the control ;the master uses a personal computer which is used to set and control environmental parameters.The system uses RS-485 bus to realize communication in this network.The communication is half duplex,using accumulate and cheek-up algorithm.VB6.0 is applied to implement a friendly human-computer interface.By reading and storing the environmental parameters of greenhouse,the management of greenhouse environmental parameters such as temperature,humidity is realized.We can check the history data conveniently using the system application.