Research on remotely monitoring controller for the drying process of fruit

Abstract

In the field of agriculture, the conservation of the agricultural products plays a vital role. The challenge in this topic is to manage a large scale of storehouse by manual works. Therefore, an implementation of IoT-based controller for monitoring in preserving fruits such as dragon fruit or jackfruit as a remotely monitored solution. First of all, the analysis of hardware platform and software programming is completed in this work. Several peripheral devices must be deployed in order to send or receive data online. Some sensing boards are also suggested to measure the physical variables such as temperature or humidity. In addition, the overall system is supervised in any time to ensure the whole process. After the procedure of data collection, there is optional filtering method to choose the correct information owing to the large scale of measuring values. Later, a GUI (Graphical User Interface) program is produced to support the system management. Any change in this system would be displayed as soon as possible. This software might be programmed by Visual Studio 2019 using C/C++ language. An operator could open this software in the host computer or mobile device with internet connection. MQTT (Message Queuing Telemetry Transport) protocol is suggested to maintain the data exchange between slaves and host. Thanks to this function, the flow of data could be transmitted fluently and continuously. To verify the effectiveness and feasibility of our approach, several tests are carried out. The system is validated when the environmental conditions are normally obtained. Although there needs several implementations to enhance the system performance, the use of the proposed design in practical system provides the robustness, effectiveness and feasibility for an industrial solution.