Desarrollo de un sistema de transmisión de datos usando comunicación Li-Fi para monitoreo de variables controladas de una planta de control.

Abstract

The following investigation's objective was to develop a data transmission system using LI-Fi communication to monitor controlled variables of a control training plant. It investigated and analyzed the existing Li-Fi equipment in the market. The project consists of two parts: the data acquisition and processing system and the monitoring system on the web. The acquisition and control of data was programmed in the Labview software and the variables that were controlled are speed and temperature. The speed controller was tuned by the second Ziegler-Nichols experimental method, while the temperature controller tuned to the first method of the same author. The controllers tests were performed using the criteria of absolute error integral (IAE) and integral of the absolute error time (ITAE), it was concluded that for both the speed controller and the temperature controller the best controller focused on the reduction of the error is the Integral Proportional. In order to monitor the controllers on the web, the Labview Web Publishing Tool was used and the data transmission was tested using LiFi and WiFi communication. During the tests, the data traffic of these communications was captured with the Wireshark software and later it was evaluated with the Steelcfentral Packet Analyzer software obtaining as a result that the system transmits data in the range of 1.2 to 1.4 kbps and its latency time is minimal. It is concluded that Li-Fi technology can be widely used for various applications, especially where radio frequency interferes in machines such as certain industries, hotels and airports. It is recommended to further investigate this technology and apply it in the areas where WiFi cannot be used as in areas of magnetic resonance for the control of the patient's blood pressure.