White, Christopher (2013) Wireless grain silo monitoring and control. [USQ Project]
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Abstract
Wireless Grain Silo Monitoring and Control was a project put forward by Agridry International to USQ. The scope detailed that a wireless system had to be designed to communicate from the office to the grain silos 100m away, with cost being a factor.
The purpose of making a wireless system for the grain silo environment was to add convenience by reducing the time spent travelling to and from the silos and to have a lower cost than the current system.
Several combinations of wireless communication were researched to select the optimum design for the system and 434MHz ASK RF modules with an Arduino microprocessor were selected for the task.
A number of prototypes have been built throughout the project, with new features added in every version. The current version is able to send packets using half-duplex communication across a distance of 100m, using dipole antennas.
The polling system has been implemented communicate between the Master module and each of the silos, sending setting information for the silo fans. Also, errors are reported via the Serial Monitor when the Master can't achieve communication.
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