The Measure System of Temperature and the Humidity
Base on the SCM
Abstract
Temperature and humidity measurement system's study is of far-reaching significance, such as warehouses, farms, greenhouses and other production process, the humidity had caused mildew and deterioration, temperature changes will affect the quality, precision equipment, semiconductor devices, high temperature or humidity The General Assembly had led to lower performance. In addition, people's improved quality of life, the indoor environment of high demand also need to conduct real-time monitoring of temperature and humidity, evidently, the measurement of temperature and humidity range is very wide.
In this paper, the design of the temperature and humidity measurement system that is for certain special occasions, temperature and humidity requirements for a measurement, and monitoring and design. System through the temperature and humidity detection circuit, the acquisition of signal transmission to the Single-Chip, to handle collection through the Single-Chip to the signal and through the LED display, if temperature and humidity through high or too low, the alarm will automatically alarm circuits. It uses 89 C51 microcontroller, the entire system by the temperature detection circuit, humidity detection circuit, A / D converter circuit, alarm circuits, display components such as circuit and Single-Chip.
The system design is simple compact, low power consumption, better overall performance, with a small smart instrumentation of the trend for future development and commercialization of high-performance temperature and humidity measuring instruments laid a good foundation.
Keywords：SCM;Temperature;Humidity;Sensor
