Monitoreo de un sistema automático para la producción de yogurt en la planta de lácteos Tunshi – ESPOCH en tiempo real mediante comunicación inalámbrica.

Abstract

The aim of this research was to monitor an automatic system for the yogurt production in Tunshi Dairy Plant - ESPOCH in real time through wireless communication, whose main elements are: the LOGO V8 module, the Arduino controller, the bluetooth module and the Android platform. the methodology used for the work development includes acquiring the process condition variables such as temperature and time by means of the LOGO V8 module. Once the variables are acquired, they are sent to the Arduino controller through the Modbus TCP communication protocol. Subsequently, the communication between the arduino and the application is established through the bluetooth module using serial protocol. An Arduino program was implemented to manage and process the variables, its main role is to create a frame with data of interest and thus avoid loss of information during transmission. a mobile application was designed using the MIT App Inventor 2 platform, which allows the user to connect via bluetooth from the phone to the system. once the communication is established, the user can visualize the process data: actual temperature, set point temperature and elapsed time. While the start and stop control of the process is done through the start and stop buttons, moreover, the system has voice notifications to issue alerts. The operating tests were carried out and it was determined that the reaction speed is directly proportional to the distance between the system and the user, obtaining optimal levels of response up to 22 meters away in 0.7 seconds, the alert message when reaching the set point in 0.603 seconds and the cooling temperature for the fermentation process in the production of yogurt in 0.597 seconds. Besides, it was determined that the impediments present between the system and the user affect the speed of response.