Centralized measurement device, failure monitoring method and system

The invention provides a centralized measurement device, a failure monitoring method and system, relating to a passive optical network technology, wherein the failure monitoring method for the passive optical network comprises the steps of: controlling a test wavelength generated and sent by an opti...

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Bibliographische Detailangaben
Hauptverfasser: WU YANQIN, ZHAO JIANJUN, ZHAO HONGBO, SHANG FENGLIANG, ZHANG LE, ZHANG JING
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:The invention provides a centralized measurement device, a failure monitoring method and system, relating to a passive optical network technology, wherein the failure monitoring method for the passive optical network comprises the steps of: controlling a test wavelength generated and sent by an optical fiber analyzer to be coupled with working wavelengths sent by ports of an optical switch and an OLT (Optical Line Terminal) device to form testing light, spreading the testing light along a downlink direction of an optical fiber, allocating the testing light to each branch optical fiber through a branching unit; receiving state data between the port of the OLT device and a terminal device connected with each branch optical fiber, wherein the state data is forwarded by the optical fiber analyzer; storing the state data as reference data values in a database; setting a loss threshold according to the reference data values; and monitoring alarm information, wherein the alarm information is associated with a line failure reported by a network element management device according to the received information from the passive optical network. According to the invention, the problem of quality monitoring of a large quantity of optical fiber links in the passive optical network is solved.