摘 要:随着工业技术的发展,环境问题已经成为全世界关注的问题。本文基于51系列单片机的环境监测系统以AT89C51单片机为核心,通过CCll01无线收发模块,配上外围电路实现指令的发射与接收、信息的处理与存储和系统的控制等功能。传输采用433MHZ的载波、gauss frequency shift keying (GFSK)调制方式。周边环境温度信息的探测采用DSl8B20传感器模块实现,整个系统的硬件设计由一个监测终端和一个探测终端构成。设计所用的器件,功能完善,性价比高。经过测试,此设计能够有效的完成各种环境下的信息采集、处理等。4638
关键词:无线;DS1302;AT89C51;环境监测;DSl8B20
Design of Environment Monitoring System Based on MCU
Abstract: With the development of industrial technology, environmental issues have become a worldwide concern. Environmental monitoring system based on the 51 micro control unit(MCU) uses AT89C51 microcontroller as the core, through CCll01 wireless transceiver module, coupled with external circuit to send and receive instructions, store and process information, control system, etc. Transmission uses 433MHZ carrier, GFSK modulation mode. Detection of the temperature information of the surrounding environment is achieved using DSl8B20 sensor module, the hardware design of the whole system constituted by a monitoring terminal and a detection terminal. Devices of design are fully functional and cost-effective. Tested, this design can be effectively completed all the environment information collecting, processing, etc.
Key Words: Wireless; DS1302; AT89C51; Environmental monitoring; DSl8B20
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