摘 要家庭居住环境的温度、湿度还有有害气体的浓度是非常重要的参数,在健康值以外的参数值会对我们的身体健康造成影响。所以,我们要对这些参数进行监测,本文就是针对室内环境设计的环境质量监测系统。76798
本设计是一款室内环境质量及安全监测系统,采用STC12C5A60S2单片机作为核心处理芯片。本设计由数据采集、数据处理以及数据显示等部分组成。其中数据采集部分包含温湿度采集、甲醛浓度采集以及煤气浓度采集等部分。分别采用温湿度传感器DHT21、电化学传感器MS1100以及半导体式气体传感器MQ-5。STC12C5A60S2单片机进行数据处理后,将处理后的数据送到1602LCD液晶屏实时显示。本设计还加入了蜂鸣器报警和GSM模块,当采集的参数超过设定值时就会发生蜂鸣器报警,当室内发生火灾及盗窃时就会通过GSM模块向预先设定的手机号码发送信息。本系统可大幅提高室内环境的舒适度和安全度。
该论文有图20幅,表5个,参考文献20篇。
毕业论文关键字:单片机 传感器 GSM模块 实时显示
Design Of Indoor Environmental Monitoring System
Abstract The temperature, humidity and harmful gas concentration of family living environmrnt are very important parameter, in the health values outside the parameters will have an impact on our health。 Therefore, we must measure these parameters, this paper is designed for monitoring of indoor environment environmental quality。
The system is designed for minitoring of indoor environment quality, STC12C5A60S2 is the micro-controll uinit。 The system includes data acquisition module, data processing module, data diaplay module。 The data acquisition module mainly includes acquisition of temperature and humidity, acquisition of formaldehyde concentration and acquisition of gas concentration。 Respectively, using the is temperature and humidity sensor DHT21 and electrochemical sensor MS1100 and semiconductor type gas sensor MQ-5。 STC12C5A60S2 send the data to 1602LCD for display 。 At the same time, the design also contains the buzzer and the GSM module, when the acquisition parameter exceeds the set value , the buzzer alarm, when the indoor fire and theft will through the GSM module to send messages to the mobile phone number 。The system can improve the confortable and safety of indoor environment quality。
There are 20 figures, 5 tables and 20 references in this paper。
Key words: single chip microcomputer sensor GSM module real time display
目录
摘 要 I
Abstract II
目录 III
图清单 V
表清单 VI
1。绪论 1
1。1 选题意义 1
2。系统总体设计 4
2。1 系统的应用环境介绍 4
2。2 系统总体方案设计 4
2。3 已有控制方案的比较 5
3。系统硬件设计 9
3。1 控制模块设计 9
3。2 温湿度监测模块设计 13
3。3 甲醛监测模块设计 16
3。4 煤气监测模块设计