摘要微气象因素对人类的生产生活发挥着巨大影响,在光伏发电、温室农业、 电气传输等领域,气象影响所带来的问题越来越被人们重视,气象监测系统应 运而生。
微气象监测系统的目的是协调地感知、采集和处理地理区域中感知对象的 信息,并发布给监控者。近年来,随着通信技术和传感器技术的飞速发展,使 得微气象监测技术取得了长足进步,特别是在环境监测、工业监控等领域,基 于传感器网络的微气象监控系统受到了越来越广泛的应用。 81189
本文通过对微气象环境和调控方式的分析,得出一个总体方案,设计一套微 气象监测系统。本系统以 STM32 单片机为核心,通过 RS-485 通信,并结合 Modbus 通讯协议,获取传感器采集的微气象数据,人机交互界面通过 RS-232 通讯与控 制器进行信息交换。实现对微环境内温湿度、风速风向、光照度等因素的采集、 分析和处理。
毕业论文关键词:微气象,STM32,RS-485,RS-232,传感器
Title The Design of micro-meteorological monitoring terminal
ABSTRACT
Micro-meteorological factors on the production of human life plays a huge role in the field of photovoltaic power generation, greenhouse agriculture, electrical transmission, meteorological impact of the problem has been growing attention, meteorological monitoring system came into being。
Purpose micro-meteorological monitoring system is coordinated perception, acquisition and processing of geographic regions perceive the object information and distribute it to those who monitor。 In recent years, with the rapid development of communication technology and sensor technology makes micro-meteorological monitoring technology has made considerable progress, especially in environmental monitoring, industrial control and other fields, based on micro- meteorological monitoring system sensor network has been more widely application。
Based on the micro-meteorological and environmental regulation by analysis, to arrive at a total program, design a micro-meteorological monitoring system。 This system STM32 microcontroller core, through the RS485 bus, communication protocol and binding Moudbus get micro- meteorological data collected by sensors, human-machine interface with the controller via RS232 communication to exchange information。 Realization within the microenvironment temperature and humidity, wind speed and direction, light and other factors of the acquisition, analysis and processing。
Keywords: micro-climate;STM32;RS485;sensor。
目 次
第一章 绪论 1
1。1 项目的研究目的和意义 1
1。2 微气象监测项目的国内外发展状况 。。 1
1。3 本项目研究的主要内容 2
1。3。1 本项目采用的硬件 2
1。3。1 本项目的通信方式 2
1。4 本论文的组织结构 。 3
第二章 微气象监测的原理 4
2。1 温度传感器测量原理 。。 4
2。1。1 电量式测温法原理 5
2。1。2 激光干涉测温法原理 6
2。2 湿度传感器测量原理 。。 6
2。3 风速风向传感器测量原理 。 6
2。3。1 机械式原理