Network monitoring method and device based on polling matching
A network monitoring and self-matching technology, applied in electromagnetic wave transmission systems, electrical components, transmission systems, etc., can solve problems affecting the judgment of optical fiber link faults, and achieve the effects of simple structure, reduced use cost, and low system cost
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Embodiment 1
[0030] A network monitoring method based on polling self-matching, according to the instructions sent by the processing and control unit 6, the network monitoring of the links to be monitored is completed one by one; the method for performing network monitoring on each link to be monitored is as follows:
[0031]According to the instructions issued by the processing and control unit 6, the adjustable light source 1 is modulated in the link to be monitored and emits a monitoring pulse sequence corresponding to the link to be monitored, and the monitoring pulse sequence is transmitted from the a port of the optical circulator 2 Incident, the b port of the circulator 2 reaches the optical splitter through the trunk fiber; the optical splitter divides the monitoring pulse sequence into k sub-pulse sequences, and the optical splitter is connected to each port of the optical splitter. They are respectively dropped to each optical encoder and each user terminal, where k is the total n...
Embodiment 2
[0038] A network monitoring device based on polling self-matching, comprising: an adjustable light source 1, an optical circulator 2, an optical splitter 7, an optical receiver 5 and a processing and control unit 6, each output port of the optical receiver 5 A link including an optical encoder 3 and a user terminal 4 is respectively connected to the optical encoder, the optical encoder includes a first fiber Bragg grating and a second fiber Bragg grating fiber delay line, and the output end of the first fiber Bragg grating is extended through an optical fiber. The time line is connected to the input end of the second fiber Bragg grating, and the input end of the second fiber Bragg grating is connected to the user terminal 4;
[0039] The adjustable light source 1 is used to receive instructions from the processing and control unit 6, modulate and emit a monitoring pulse sequence corresponding to the link to be monitored for the link to be monitored; the monitoring pulse sequenc...
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