Sensor autónomo para instalaciones subterráneas
Correu electrònic de l'autorjordi.trujillo.delgadogmail.com
Tutor / director / avaluadorLópez Lapeña, Oscar
Tipus de documentTreball Final de Grau
Condicions d'accésAccés restringit per acord de confidencialitat
This project proposes the design and implementation of a monitoring system for underground facilities. This system allows a greater control over them and reduce the costs of intervention and the time of response against possible incidents. Possible applications would be the detection of leaks, overheating or vibrations in the distribution networks of light, water or gas. Currently, there are systems that monitor the state of facilitiesin real time using different methods. Unlike conventional methods, this project proposes to use autonomous sensors that capture energy and communicate with the outside by magnetic field. This prevents the use of batteries or connecting cables that increase the cost of installation or maintenance. The proposed system consists of a console (user interface) and an autonomous sensor that is located together with the installation to be monitored. The console performs the functions of energy transfer and transmission of the commands of the operator and, in turn, the autonomous sensor, captures the transferred energy to activate, make the measurements and send them to the console so that they can be visualized by the operator. Considering that the magnetic field strength is limited by current legislation and that it is inversely proportional to cube of the distance, the maximum functional distance between the console and the sensor constitutes a merit factor in the design. In order to reach greater distances, the consumption of the sensor has been reduced applying techniques of low consumption in its design. On the other hand, the sensitivity of the console to receive messages using a new modulation technique has been improved. Finally, note that a prototype has been made to scale to verify the operation of the system. This prototype should be scaled to higher power levels and dimensions of the magnetic antennas to adapt it to the application proposed in the project.