Control system for granary ventilation based on embedded networking and Qt technology

Aiming at realizing intellectualized control of granary ventilation and eliminating the flaws such as low efficiency, technological obsolescence and structural incompleteness in traditional system, this paper brings forward a new control system for granary ventilation with advanced embedded Linux technology, embedded networking technology, and Qt technology. This system uses BeagleBone Black platform as the core communication server, deploys the Modbus embedded network as sensing unit for fetching sensor data and the CANopen embedded network as execution unit for controlling fan devices, and adopts JSON-RPC service as remote communication mechanism. It fully realizes functions of intelligent detection of grain condition, automatic control ventilation, local visualized monitoring and remote centralized monitoring.