Verfahren, Vorrichtung und System zur Temperaturüberwachung in Glasfasernetzwerken

Details

Veröffentlichungs-Nr.

EP4741786

Anmeldetag

8. November 2024

Veröffentlichung

13. Mai 2026

Rechtsraum

EP

IPC

G01K11/32, G01D5/353(HUANG MING-FANG et al.)(NANGJIANG COLLEGE et al.)

Abstract

Method, system and device for monitoring temperature in a fiber optic network, including an OLT(110) and customer devices (121,122) connected through a link (100), using existing protocols and without additional hardware, as the OLT (110) performs: measuring the round-trip delay (RTD) between each customer device (121) requiring synchronization with the customer devices (122) previously set in service and connected to the link (100) at scheduled intervals, and estimating variations in RTD to determine temperature changes (ΔT) in the link (100). Additionally, the method allows generating temperature maps by calculating the variation in average temperature along the link by dividing it into segments and calculating the average temperature variation iteratively, starting from the initial segment between the OLT (110) and the closest customer device and progressing through subsequent segments. This calculation provides points of temperature along the fiber tree and the information of several trees can be represented together to build a 2D map.

Anmelder

Firmen

Telefonica, S.A.
UNIVERSIDAD POLITECNICA DE VALENCIA

Land

🇪🇸 Spanien

Fachgebiete