CN-121585257-B - Optical link health monitoring method and equipment

Abstract

The disclosure provides an optical link health monitoring method and equipment, which relate to the technical field of optical communication, and are used for determining the health state of a monitored optical link by acquiring optical power parameters of optical modules at two ends of the optical link, wherein the monitored optical power parameters comprise transmitting optical power and receiving optical power, the loss parameters of the bidirectional link loss of the monitored optical link are calculated based on the monitored transmitting optical power and the monitored receiving optical power of the optical module, the monitored loss parameters comprise at least one of loss consistency and loss change rate, and the health state of the monitored optical link is determined based on the monitored loss consistency, the monitored loss change rate and a loss parameter threshold, and the monitored loss parameter threshold is determined based on historical optical power parameters of the monitored optical module. The coverage and accuracy of health monitoring can be improved.

Inventors

• JIANG JINKUN
• CHEN XIANG
• LI CHAO
• GUO WEISONG

Assignees

• 苏州元脑智能科技有限公司

Dates

Publication Date

20260508

Application Date

20260128

Claims (10)

1. 1. An optical link health monitoring method, comprising: acquiring optical power parameters of optical modules at two ends of an optical link, wherein the optical power parameters of the optical modules comprise transmitting optical power and receiving optical power; Calculating a bi-directional link loss of the optical link based on the transmit optical power and the receive optical power of the optical module, wherein the bi-directional link loss of the optical link includes a first link loss from an optical module at a first end of the optical link to an optical module at a second end of the optical link, a second link loss from an optical module at the second end of the optical link to an optical module at the first end; Calculating a loss parameter of the optical link based on the first link loss and the second link loss, wherein the loss parameter comprises at least one of loss consistency and loss change rate; Determining that the optical link is in a fault state when the loss consistency, the loss change rate and a loss parameter threshold meet a link fault condition, wherein the loss parameter threshold comprises a loss consistency threshold and a loss change rate threshold, the loss parameter threshold is determined based on historical optical power parameters of the optical module, the fault state comprises at least one fault type, and the method comprises determining that the fault type of the optical link is a first fault type when the loss consistency is less than the loss consistency threshold and the loss change rate is greater than or equal to the loss change rate threshold; determining that the fault type of the optical link is a second fault type if the loss consistency is greater than or equal to the loss consistency threshold and the loss rate of change is less than the loss rate of change threshold; And determining that the fault type of the optical link is a third fault type when the loss consistency is greater than or equal to the loss consistency threshold and the loss change rate is greater than or equal to the loss change rate threshold.
2. 2. The method according to claim 1, wherein before the obtaining the optical power parameters of the optical modules at both ends of the optical link, further comprises: acquiring historical optical power parameters of optical modules at two ends of an optical link at each sampling time within a preset period, wherein the historical optical power parameters comprise historical transmitting optical power and historical receiving optical power; Calculating the historical bidirectional link loss of the optical link at each moment based on the historical transmitted optical power and the historical received optical power, wherein the historical bidirectional link loss comprises a first historical link loss from an optical module at a first end of the optical link to an optical module at a second end of the optical link and a second historical link loss from the optical module at the second end of the optical link to the optical module at the first end; Calculating the consistency of the historical loss of the optical link at each moment based on the first historical link loss and the second historical link loss; Calculating the historical loss change rate at each moment based on the historical loss consistency index at each moment; And determining and storing a loss consistency baseline and a loss change rate baseline based on the historical loss consistency and the historical loss change rate at each moment, wherein the loss consistency baseline and the loss change rate baseline are used for determining loss parameter thresholds.
3. 3. The method of claim 2, wherein, in the event that the loss consistency, the loss rate of change, and loss parameter threshold meet a link failure condition, prior to determining that the optical link is in a failed state, further comprising: determining a loss consistency threshold based on the loss consistency baseline and a preset loss consistency floating parameter; and determining a loss change rate threshold based on the loss change rate baseline and a preset loss change rate floating parameter.
4. 4. The method of claim 1, wherein the calculating the bi-directional link loss of the optical link based on the transmit optical power and the receive optical power of the optical module comprises: performing invalid data processing on the transmitted light power and the received light power; and calculating the bidirectional link loss of the optical link based on the transmission optical power and the receiving optical power after invalid data processing.
5. 5. The method of claim 3, wherein after calculating the loss parameters of the optical link based on the first link loss and the second link loss, further comprising: and determining that the optical link is in a normal state when the loss consistency is less than the loss consistency threshold and the loss change rate is less than the loss change rate threshold.
6. 6. A method according to claim 3, further comprising: predicting a remaining lifetime of the optical link based on the loss consistency, the loss rate of change, and the loss consistency threshold, the loss rate of change threshold.
7. 7. A method according to claim 3, further comprising: under the condition that the optical link is monitored to be interrupted, acquiring operation data of the optical link in a preset period before the interruption; when the operation data is smaller than a first set threshold value and the change rate of the operation data is smaller than a second set threshold value, the optical link enters a plugging state; and when the operation data is greater than or equal to the first set threshold value or the change rate of the operation data is greater than or equal to the second set threshold value, the optical link enters a fault state.
8. 8. The method of claim 7, wherein, in the case where the operation data is less than a first set threshold and the rate of change of the operation data is less than a second set threshold, after the optical link enters a plugged-in state, further comprising: under the condition that the optical link is restored within a preset time length, entering a normal state, and acquiring optical power parameters of optical modules at two ends of the optical link; and under the condition that the optical link is not recovered within a preset time period, the optical link enters the fault state.
9. 9. The method according to claim 7 or 8, further comprising, after the optical link enters a failure state: And under the condition that the link recovery of the optical link is monitored, entering a learning state, and acquiring historical optical power parameters of optical modules at two ends of the optical link at each sampling time within a preset period.
10. 10. An electronic device, comprising: At least one processor, and A memory communicatively coupled to the at least one processor, wherein, The memory stores instructions executable by the at least one processor to enable the at least one processor to perform the method of any one of claims 1-9.

Description

Optical link health monitoring method and equipment Technical Field The disclosure relates to the technical field of optical communication, and in particular relates to an optical link health monitoring method and equipment. Background In the related art, an optical module is a core basic element for realizing optical interconnection between devices, and in order to ensure reliable operation of the optical module, health monitoring of the optical module is required. At present, DDM (Digital Diagnostics Monitoring, digital diagnostic monitoring) parameters such as the emitted light power, the received light power, the bias current, the working voltage and the temperature of the optical module are generally read to perform health evaluation on the optical module. Although the method can realize the health assessment of the optical module, the health assessment result can be influenced due to the fact that the DDM parameters (especially the emitted light power) are misaligned, so that the accuracy of the health assessment result is poor. Disclosure of Invention The disclosure provides an optical link health monitoring method and equipment. The method mainly aims to solve the technical problem of poor accuracy of health evaluation results. According to a first aspect of the present disclosure, there is provided an optical link health monitoring method, comprising: acquiring optical power parameters of optical modules at two ends of an optical link, wherein the optical power parameters of the optical modules comprise transmitting optical power and receiving optical power; Calculating a bi-directional link loss of the optical link based on the transmit optical power and the receive optical power of the optical module, wherein the bi-directional link loss of the optical link includes a first link loss from an optical module at a first end of the optical link to an optical module at a second end of the optical link, a second link loss from an optical module at the second end of the optical link to an optical module at the first end; Calculating a loss parameter of the optical link based on the first link loss and the second link loss, wherein the loss parameter comprises at least one of loss consistency and loss change rate; And determining that the optical link is in a fault state under the condition that the loss consistency, the loss change rate and the loss parameter threshold meet link fault conditions, wherein the loss parameter threshold comprises a loss consistency threshold and a loss change rate threshold, the loss parameter threshold is determined based on historical optical power parameters of the optical module, and the fault state comprises at least one fault type. According to a second aspect of the present disclosure, there is provided an optical link health monitoring device comprising: The system comprises a parameter acquisition module, a parameter control module and a parameter control module, wherein the parameter acquisition module is used for acquiring optical power parameters of optical modules at two ends of an optical link, and the optical power parameters of the optical modules comprise transmitting optical power and receiving optical power; A first parameter calculation module configured to calculate a bidirectional link loss of the optical link based on the transmit optical power and the receive optical power of the optical module, where the bidirectional link loss of the optical link includes a first link loss from an optical module at a first end of the optical link to an optical module at a second end of the optical link, a second link loss from an optical module at the second end of the optical link to an optical module at the first end; a second parameter calculation module, configured to calculate a loss parameter of the optical link based on the first link loss and the second link loss, where the loss parameter includes at least one of a loss consistency and a loss change rate; The health monitoring module is used for determining that the optical link is in a fault state under the condition that the loss consistency, the loss change rate and the loss parameter threshold meet link fault conditions, wherein the loss parameter threshold comprises the loss consistency threshold and the loss change rate threshold, the loss parameter threshold is determined based on historical optical power parameters of the optical module, and the fault state comprises at least one fault type. According to a third aspect of the present disclosure, there is provided an electronic device comprising: At least one processor, and A memory communicatively coupled to the at least one processor, wherein, The memory stores instructions executable by the at least one processor to enable the at least one processor to perform the method of the first aspect. According to a fourth aspect of the present disclosure, there is provided a non-transitory computer readable storage medium storing computer instructions for