Time-Aware Monitoring of Overhead Transmission Line Sag and Temperature with LoRa Communication

摘要: The techniques of Dynamic Line Rating (DLR) for Overhead Transmission (OTL)’s are currently dynamically developed. DLR systems typically rely on weather, temperature, inclination, and current measurements to calculate tension sag, where sensors need be installed directly wires. Such very reliable ensure high accuracy in determining maximum allowable current. However, their installation may require switching off the transmission line from operation. In order receive precise values regarding actual operating conditions whole line, measuring wire temperature or should at many points OTL. minimum number cover least each section critical spans, thereby increasing costs. alternative method that allows monitoring OTL is use vision system based cameras. Installed OTLs’ poles, cameras can take photos which, appropriately processed, provide data about sag wires, without necessity operation further maintenance. a facilitates also transmission, because it does not measurement transmitted sensor station base located pole (for instance, via radio). This article aims present concept monitors Lines (OTLs)’ using Long Range (LoRa) wireless communication transmission. developed consists camera microcomputer equipped with LoRa module. spans by taking photos, processing images sag-temperature estimation, sending results operator’s Supervisory Control And Data Acquisition (SCADA). architecture proposed investigated time when