Our country is a big population country, food security is the basic of a country, our grain storage management technology is backward, food damage serious problem. In order to solve the food waste caused by such problems, this paper designs intelligent granary monitoring system, so as to ensure the quality of food and avoid food waste.
This design uses STM32 microcontroller as the central controller, sensor module contains temperature and humidity sensor DHT11, photosensitive resistance sensor, smoke concentration sensor, its role is to monitor the temperature and humidity, light intensity value, smoke value of grain storage to provide the most suitable storage conditions; The executive module includes the fan module, the water pump module and the buzzer alarm module, whose function is to adjust the temperature and humidity of the granary, the intensity of light, alarm reminder, etc. In addition, the system also adds a WiFi module to realize remote viewing and remote control, so that the management is more convenient and user-friendly. Finally, from the aspect of function and performance of the physical test, many tests show that the design scheme is simple and feasible, has the function of food security storage, the system is safe, stable, reliable, has practical application and promotion value.
Key Words: intelligent granary; STM32 MCU; Sensor; WiFi