Based on MCU intelligent monitoring system design of grain depot
temperature and humidity
Abstract
Grain storage is measures to guard against some unexpected events, such as some natural
disasters. "The feed with food first", food items are necessary for human survival, for us, the
importance of food is self-evident. Want to live without it. So scientific and protection has
important social significance and economic value.
When there is a harvest, each grain monitoring work pressure is very big, if poorly
managed, the loss is very big. In the grain depot temperature and humidity is one of the
important factors to ensure food security storage, therefore, the monitoring of temperature and
humidity is of great significance to protect the food, so the design performance of grain price
higher temperature and humidity intelligent monitoring system is imminent.
This design is integrated the detection and control of single-chip design of grain depot
temperature and humidity. System is adopted by the single chip microcomputer AT89C52, the
single chip microcomputer as the core of the intelligent temperature and humidity monitoring
system controls, with digital temperature and humidity sensor SHT11 temperature and
humidity for detecting element, LM016L for display components, alarm device is composed
of buzzer and LED warning lights. When the sensor detects the temperature and humidity
value is beyond the scope of the preset, which can realize real-time sound and light alarm, and
control the corresponding relay, makes the executive part accordingly, keep grain depot
temperature and humidity value in the range of Settings. This design can also be through the
threshold button to change the temperature and humidity, LCD display module can be
real-time acquisition of temperature and humidity values.
Key Words：MCU；Intelligence；Temperature；Humidity
