Grain bin detecting and alarm system based on wireless sensor network

The utility model relates to a grain bin detecting and alarm system based on a wireless sensor network. The grain bin detecting and alarm system based on the wireless sensor network includes a microprocessor, and a temperature and humidity sensor, a power source module, an LED display module and a wireless transmission module together connected with the microprocessor. The grain bin detecting and alarm system based on the wireless sensor network also includes a line-crossing alarm connected with the microprocessor. The microprocessor receives temperature and humidity signals collected by the temperature and humidity sensor and judges whether a predetermined value is surpassed or not. If the predetermined value is surpassed, the line-crossing alarm alarms. The LED display module is used for displaying the temperature and humidity signals. The wireless transmission realizes the communication of the microprocessor with the external. And the power source module provides working power for the grain bin detecting and alarm system based on the wireless sensor network. By arranging the alarming device, an alarm can be given out directly and the situation can be handled by field workers when the temperature and humidity surpass the predetermined value, so that the real-time performance is high.