温度/湿度/光强多参数测量仪研制
Development of Temperature/Humidity/Light Intensity Multiparameter Measuring Instrument
摘要:
本文针对室内家居环境的监测,设计了基于ATmega328p单片机的温度/湿度/光强多参数测量仪。通过WZP-035型铂热电阻式温度传感器进行温度监测,HS1101型电容式湿度传感器进行湿度监测以及GL5537型光敏传感器进行光照监测,其中温度的监测范围−10℃~40℃,湿度为10%~60% RH,光强为10~1000 lx。通过分析温度、湿度和光强等传感器的基本结构和工作原理,进行了三种传感器的静态特性标定,在此基础上设计、制作信号处理电路,采用单片机进行数据处理,并通过LCD12864液晶显示屏显示信号。结果表明该系统能完成室内温度、湿度和光强的监测,可以稳定的显示数值。
Abstract:
In this paper, in order to monitor the indoor home environment, a temperature/humidity/light intensity multiparameter measuring instrument based on ATmega328p was designed. Tempera-ture, humidity and light intensity were monitored using platinum thermal resistance temperature sensor (WZP-035), capacitive humidity sensor (HS1101) and photosensitive sensor (GL5537) respectively; the temperature monitoring ranges from −10˚C to 40˚C, the humidity monitoring ranges from 10% RH to 60% RH, and light intensity monitoring ranges from 10 lx to 1000 lx. Through analyzing the basic structure and working principle of sensors, the static characteristics of three sensors were calibrated. On this base, the signal processing circuit was designed and manufactured, and the single-chip microcomputer was adopted for data processing. The LCD12864 liquid crystal display was used to display signal. The results show that this system can monitor indoor temperature, humidity and light intensity, and display the value stably.
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