ALVES, L. N. T.; ALVES, LIDJA NAYARA TAVARES.; ALVES, LIDJA N. T.; http://lattes.cnpq.br/4161684266851941; ALVES, Lidja Nayara Tavares.
Résumé:
This work presents an experimental prototype of a Radio Frequency Identification - RFID
tag for identification and monitoring of pollution in high voltage towers. Therefore, the
following steps were carried out: dielectric characterization of the artificial pollution;
design via simulation of RFID tags for application in metallic towers; manufacturing,
validation and testing of tags; sensitivity analysis of tag reach; and computational
algorithm for signal processing and subsequent statistical analysis. Pollution monitoring
was based on variations in the Received Signal Strength Indicator (RSSI) by the reader
due to the amount of pollution deposited. Tag validation and testing was performed
outdoors with a de-energized high-voltage tower emulation. For all levels of deposited
pollution analyzed, the maximum average range of the signal reading, in an external
environment, was 18 meters. The RSSI data, obtained by reading the RFID tag, will be
processed and analyzed, aiming to identify the levels of pollution deposited in the high
voltage towers. The results demonstrate the potential of RFID tags for identifying and
monitoring severe pollution in high voltage metal towers. Providing greater assertiveness
in pollution diagnoses and consequently safer, more efficient and non-invasive inspection
routines for insulator chains. Additionally, RFID tags make it possible to catalog high
voltage towers used in the electrical power system. Pollution identification via RFID tags
is a rapidly growing, non-invasive and low-cost technology for implementation in high
voltage towers.