CN107566138B - Wavelength division equipment and power failure warning method of wavelength division equipment - Google Patents
Wavelength division equipment and power failure warning method of wavelength division equipment Download PDFInfo
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Abstract
The invention provides a wavelength division device and a power failure warning method of the wavelength division device, and relates to the field of operation and maintenance monitoring. The power failure warning method of the wavelength division equipment comprises the following steps: when the wavelength division equipment is powered off, switching to the power supply by the alarm power supply module; determining that the wavelength division equipment is powered down; and generating and sending the power-off alarm message. By the method, when the wavelength division equipment is powered off, the alarm power supply module can be switched to supply power to the wavelength division equipment and the structure related to power-off alarm, and the power-off alarm message is sent, so that maintenance personnel can find out that the wavelength division equipment is disconnected due to power-off in time, the process of field investigation by the maintenance personnel is omitted, the efficiency is improved, and meanwhile, manpower and material resources are saved.
Description
Technical Field
The invention relates to the field of operation and maintenance monitoring, in particular to a wavelength division device and a power failure warning method of the wavelength division device.
Background
Sometimes, abnormal phenomena occur in the network, such as network element offline. The network element disconnection may be caused by various reasons, such as a network element self failure, a network failure, or a network element power failure.
The phenomenon of network element power failure is easy to occur in some stations with poor power supply conditions. If the power failure causes the off-line, the standby power supply equipment does not need to be started under extreme conditions, and the power can be supplied by sitting and the like. However, when the network element is powered down, the maintenance personnel need to drive to the site of the machine room to know whether the network disconnection is caused by the power failure or other reasons. Particularly for county and rural sites or sites with remote locations, when a network element offline event occurs, people need to be sent to a field for testing and checking in order to check fault reasons, vehicle and personnel cost is consumed in vain, maintenance cost is increased, and maintenance efficiency is reduced.
Disclosure of Invention
An object of the present invention is to provide a scheme for determining power down of a wavelength division device in time.
According to an aspect of the present invention, there is provided a wavelength division device including: the power failure detection module is used for determining the power failure of the wavelength division equipment; the alarm module is used for generating and sending a power-off alarm message under the condition that the power-off detection module determines that the wavelength division equipment is powered off; and the warning power supply module is used for supplying power to the power failure detection module and the warning module when the wavelength division equipment is powered down.
Optionally, the alarm power supply module comprises a capacitor with millisecond power supply capability.
Alternatively, the capacitance of the capacitor is not less than 0.1 millifarad.
Optionally, the power down detection module is configured to determine that an OSC (Optical supervisory Channel) single board of the wavelength division device is powered down; the alarm module is used for generating and sending a power failure alarm message under the condition that the power failure detection module determines that the OSC single board is powered down, wherein the power failure alarm message is an OSC signal frame carrying a power failure identifier.
Optionally, the power failure warning message further includes a source node identifier; the alarm module is used for generating and sending the power-off alarm message and comprises: the alarm module is used for generating a power failure alarm message and sending the power failure alarm message to the OSC single board of the opposite-end network element, so that the network management equipment determines the wavelength division equipment with power failure according to the source node identification in the power failure alarm message forwarded by the opposite-end network element.
Optionally, the method further comprises: the message receiving module is used for receiving power failure warning messages from other wavelength division equipment; and the message forwarding module is used for forwarding the power failure warning message received by the message receiving module to the network management equipment.
When the wavelength division equipment is powered off, the alarm power supply module can be switched to supply power for the power failure detection module and the alarm module, and a power failure alarm message is sent, so that maintenance personnel can conveniently find that the wavelength division equipment is disconnected due to power failure in time, the field troubleshooting process of the maintenance personnel is omitted, the efficiency is improved, and meanwhile, manpower and material resources are saved.
According to another aspect of the present invention, a power down warning method for a wavelength division device is provided, including: when the wavelength division equipment is powered off, switching to the power supply by the alarm power supply module; determining that the wavelength division equipment is powered down; and generating and sending the power-off alarm message.
Optionally, the alarm power supply module comprises a capacitor with millisecond power supply capability.
Alternatively, the capacitance of the capacitor is not less than 0.1 millifarad.
Optionally, determining that the wavelength division device is powered down comprises: determining the power failure of an OSC single plate of an optical monitoring channel of wavelength division equipment; the generating and sending the power-off warning message comprises the following steps: and generating and sending a power failure alarm message under the condition of determining the power failure of the OSC single board, wherein the power failure alarm message is an OSC signal frame carrying a power failure identifier.
Optionally, the power failure warning message further includes a source node identifier; the generating and sending the power-off warning message comprises the following steps: and generating a power failure alarm message and sending the power failure alarm message to an OSC single board of the opposite-end network element, so that the network management equipment determines the power-failure wavelength division equipment according to the source node identifier in the power failure alarm message forwarded by the opposite-end network element.
Optionally, the method further comprises: receiving power failure warning messages from other wavelength division equipment; and forwarding the received power failure warning message to network management equipment.
By the method, when the wavelength division equipment is powered off, the alarm power supply module can be switched to supply power to the structure related to the power-off alarm in the wavelength division equipment and send the power-off alarm message, so that maintenance personnel can find out that the wavelength division equipment is disconnected due to the power-off in time, the field investigation process of the maintenance personnel is omitted, the efficiency is improved, and meanwhile, manpower and material resources are saved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:
fig. 1 is a schematic diagram of one embodiment of a wavelength division device of the present invention.
Fig. 2 is a functional diagram of a system of wavelength division devices.
Fig. 3 is a schematic diagram of another embodiment of the wavelength division device of the present invention.
Fig. 4 is a schematic diagram of a further embodiment of the wavelength division device of the present invention.
Fig. 5 is a flowchart of an embodiment of a power down warning method of a wavelength division device according to the present invention.
Fig. 6 is a flowchart of another embodiment of a power down warning method of a wavelength division device according to the present invention.
Fig. 7 is a flowchart of a power down warning method of a wavelength division device according to another embodiment of the present invention.
Detailed Description
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
A schematic diagram of one embodiment of the wavelength division device of the present invention is shown in fig. 1. The power failure detection module 101 is configured to determine that the wavelength division device is powered down, and may determine that the wavelength division device is powered down by connecting a standby interface of the existing wavelength division device or using a standby connection line. After the power failure detection module 101 determines that the wavelength division device has a power failure, the alarm module 102 generates and transmits a power failure alarm message. In an embodiment, the power failure warning message may be directly sent to the network management system, or may be sent to the opposite-end network element, and the opposite-end network element forwards the power failure warning message to the network management system. The alarm power supply module 103 can supply power to the power failure detection module 101 and the alarm module 102 when the wavelength division device is powered down, so that the power failure detection module 101 and the alarm module 102 can still work normally to generate and send a power failure alarm message under the condition that the wavelength division device is powered down.
When the wavelength division equipment is powered off, the alarm power supply module can be switched to supply power for the power failure detection module and the alarm module, and a power failure alarm message is sent, so that maintenance personnel can conveniently find that the wavelength division equipment is disconnected due to power failure in time, the process of field investigation by the maintenance personnel is omitted, the efficiency is improved, meanwhile, manpower and material resources are saved, and the maintenance cost is reduced.
In one embodiment, the alert power module 103 may be a power supply element, such as a capacitor, with instantaneous power capability in parallel with the common power supply circuit. Because the power consumption of the power failure detection module 101 and the power failure alarm module 102 is not large, and the power failure alarm message can be sent out quickly, the reporting of the power failure of the wavelength division equipment can be realized only by the power supply element having the power supply capacity of millisecond level. The wavelength division equipment does not need to greatly improve the existing equipment, and is convenient to popularize and apply.
In one embodiment, improvements may be made on the OSC board of the wavelength division device. The functional diagram of the wavelength division device system is shown in fig. 2. The OSC of the Wavelength Division device is used for transmitting management and monitoring information about a WDM (Wavelength Division Multiplexing) system, has an operating Wavelength of preferably 1510nm, is far apart from a Wavelength region of service light, can transmit over a long distance without amplification, and has a sensitivity higher than-48 dBm at a receiving side. The OSC and the power amplifier BA are combined together through the coupler and enter a line optical cable to be transmitted to the opposite end; after the optical cable of the opposite-end line enters the coupler, the light of the OSC enters the OSC single board due to the light splitting function of the coupler.
When the WDM terminal device 1 has a power down event, the alarm power supply module may be used to supply power only to the OSC single board, and the OSC single board detects that the power down event has occurred in the local network element, generates a power down alarm message, and sends the power down alarm message to the OSC single board of the opposite network element.
By adopting the device, because the originating coupler, the line optical fiber and the opposite-end coupler are all passive devices, when only the power failure event of the network element occurs, as long as the OSC single board of the network element can generate and send the power failure alarm message, the power failure alarm message can be transmitted to the OSC single board of the opposite-end network element, and then the OSC single board of the opposite-end network element is reported to the network manager. In addition, the OSC single board has the characteristics of being beneficial to ultra-long distance transmission and high in receiving end sensitivity, and is also beneficial to enabling the power failure alarm message to smoothly reach the opposite end network element.
In an embodiment, the power down detection module 101 may be configured to detect and determine that an OSC board of the wavelength division device is powered down; the alarm module 102 may generate and send an OSC signal frame carrying a power-down flag when the power-down detection module determines that the OSC single board is powered down. In an embodiment, the OSC signal frame may further include a source node identifier, so that the network management device determines the wavelength division device that has been powered down according to the source node identifier. The alarm power supply module 103 can supply power to the power failure detection module 101 and the alarm module 102 in the case of power failure of the wavelength division device.
The wavelength division equipment realizes the alarm of the power failure condition by using the OSC single board and realizes the transmission of the power failure alarm message by using the OSC, thereby reducing the requirement on the power supply capacity of the alarm power supply module on one hand and being beneficial to the power failure alarm message to smoothly reach the network element of the opposite end due to the characteristics of the working wave band and the sensitivity of the OSC single board on the other hand.
In one embodiment, a detection signal line may be disposed on the OSC board for detecting whether the power supply of the OSC board is interrupted, for example, by using a standby signal line to connect the power supply circuit, and when no power supply input is detected, determining that the OSC board is powered down. The equipment can be realized by slightly changing the existing OSC single board, and is convenient to popularize and apply.
In one embodiment, a capacitor with millisecond-level power supply capability may be deployed on the OSC board, and the capacitor is connected in parallel with the existing power supply circuit; when the power supply of the wavelength division equipment is normal, the capacitor does not discharge; when the OSC single board of the wavelength division device is powered off, the capacitor is switched to supply power to the OSC single board.
Usually, the power consumption of an OSC single board is between 10 and 20W, and it is only necessary to send a power down warning signal for one frame according to 20W with a frame frequency of the OSC signal of 8000 frames/second, but it is possible to send multiple frames for fault tolerance. The OSC board still needs to operate for 1 ms after power down, i.e. the power stored in the capacitor needs to support the OSC board to stably operate for 1 ms with 20W power consumption.
The size of the capacitor C is:
C＝Pt/U2
where t is time, U is voltage, and P is power.
Assuming that P is 20W, t is 0.001 sec, and U is 5V, C is 0.0008 farad, i.e., 0.8 millifarad. If only 1 frame needs to be transmitted, a capacitor with a capacity of 0.1 millifarad can meet the requirement, and therefore the size of the capacitor is not less than 0.1 millifarad.
At present, the selling price of the 1 farad/5.5V and 21x8mm button direct-insert super capacitor is about 5-10 yuan, the cost is low and far exceeds the capacity requirement of 0.8 millifarad, and the charging and discharging times and the service life can completely meet the telecommunication requirement. And due to the factors of energy loss and resistance consumption, the capacitor which can support the OSC single plate to stably work for 1 millisecond at the power consumption of 5V voltage and 20W has the cost of not more than 10 yuan/net element even if a super capacitor of 1 farad is adopted.
Therefore, as long as the capacitor with millisecond power supply capability is added on the OSC single board, the need of reporting the power failure alarm message can be met by supplying power to the OSC single board by the capacitor when the OSC single board is powered down, and the OSC single board has low cost, is easy to implement, and is convenient to popularize and apply.
In one embodiment, as shown in fig. 3, the power supply circuit 304 of the OSC board normally supplies power through the external power source, and when the power outage detection module 301 detects that the external power source stops supplying power, the power supply circuit 304 switches to the power supply from the alarm power supply module 303, in one embodiment; the power down detection module 301 informs the alarm module 302 to send a power down alarm message, and the power down detection module 301 may utilize a reserved bus of the existing OSC single board to implement power down detection and message transmission. The alarm module 302 may be comprised of a framing circuit 312 and an optical transmit module 322. The framing circuit 312 generates a signal frame including the power down alarm flag, which is transmitted by the optical transmitting module 322.
The equipment can be improved by using the existing circuit on the basis of the existing OSC single board, does not influence the interface interaction between the equipment, and is convenient to popularize and apply while saving the cost.
A schematic diagram of yet another embodiment of the wavelength division device of the present invention is shown in fig. 4. The structures and functions of the power down detection module 401, the alarm module 402 and the alarm power supply module 403 are similar to those of the embodiment in fig. 1. The wavelength division device further comprises a message receiving module 404 and a message forwarding module 405. When the wavelength division device 41 is powered down, the alarm module 402 of the wavelength division device 41 transmits the generated power down alarm message to the message receiving module 404 of the wavelength division device 42. The message receiving module 404 can receive power down warning messages from other wavelength division devices, and the message forwarding module 405 can forward the power down warning messages received by the message receiving module to the network management device. The power failure warning message may include a source node identifier of the wavelength division device that generates the power failure warning message, so that when the network management device receives the power failure warning message from the message forwarding module 405, the wavelength division device that has failed can be identified according to the source node identifier.
The wavelength division equipment can forward the power failure alarm messages from other network elements to the network management equipment, so that the power failure alarm messages of the wavelength division equipment with power failure can be guaranteed to smoothly reach the network management equipment, the reporting reliability of the power failure alarm messages is improved, workers can conveniently identify the network elements which are disconnected due to power failure, the workers can confirm that the network elements are disconnected due to power failure, the work of site investigation is avoided, and the manpower and material resources are saved while the efficiency is improved.
Fig. 5 is a flowchart of an embodiment of a power down warning method for a wavelength division device according to the present invention.
In step 501, when the wavelength division device is powered down, the power supply is switched to the alarm power supply module.
In step 502, the wavelength division device is determined to be powered down. The power failure of the wavelength division equipment can be confirmed by connecting a standby interface of the existing wavelength division equipment or by using a standby connecting line.
In step 503, a power down warning message is generated and sent. The network management information can be sent to the opposite-end network element, forwarded to the network management equipment by the opposite-end network element, or directly sent to the network management equipment.
By the method, when the wavelength division equipment is powered off, the alarm power supply module can be switched to supply power to the structure related to the power-off alarm in the wavelength division equipment and send the power-off alarm message, so that maintenance personnel can timely find that the wavelength division equipment is disconnected due to the power-off, the field investigation process of the maintenance personnel is avoided, the efficiency is improved, meanwhile, manpower and material resources are saved, and the maintenance cost is reduced.
In one embodiment, the wavelength division device OSC may be utilized for sending the power down warning message. Because the originating coupler, the line optical fiber and the opposite-end coupler are all passive devices, when only the power failure event of the network element occurs, as long as the OSC single board of the network element can generate and send a power failure alarm message, the power failure alarm message can be transmitted to the OSC single board of the opposite-end network element, and then the OSC single board of the opposite-end network element reports to the network manager. In addition, due to the characteristics of the operating band and the sensitivity of the OSC single plate, the power failure warning message can smoothly reach the network element of the opposite terminal.
Fig. 6 is a flowchart of another embodiment of a power down warning method for a wavelength division device according to the present invention.
In step 601, it is determined that the OSC board of the wavelength division device is powered down.
In step 602, a power down warning message is generated and transmitted. The power down warning message is an OSC signal frame carrying a power down flag, and the flag may be added to a reserved field of the OSC signal frame.
By the method, the OSC single board is used for realizing the alarm of the power failure condition, and the OSC is used for realizing the transmission of the power failure alarm message, so that the requirement on the power supply capacity of the alarm power supply module is reduced, and the power failure alarm message can smoothly reach the opposite terminal network element due to the characteristics that the working wave band of the OSC single board is beneficial to the ultra-long distance transmission and the receiving terminal has high sensitivity.
In one embodiment, the power down warning message may further include a source node identifier. When the power failure warning message is generated, the power failure warning message may be sent to the OSC single board of the opposite-end network element, and the opposite-end network element forwards the power failure warning message to the network management device. And the network management equipment determines the power-down wavelength division equipment according to the power-down warning message. The network management equipment reports the power failure warning message to the opposite-end network element, so that the power failure warning message of the wavelength division equipment with power failure can smoothly reach the network management equipment, and the reporting reliability of the power failure warning message is improved.
Fig. 7 is a flowchart of a power down warning method of a wavelength division device according to another embodiment of the present invention.
In step 701, power down warning messages from other wavelength division devices are received. The OSC single board of the device may receive a power failure alarm message from an OSC single board of an opposite end network element, where the power failure alarm message is an OSC signal frame carrying a power failure alarm identifier and a source node identifier.
In step 702, the received power failure warning message is forwarded to the network management device. And the network management equipment determines the wavelength division equipment with power failure according to the source node identifier, so as to determine that the wavelength division equipment is disconnected due to the power failure.
By the method, the power failure warning messages from other network elements can be forwarded to the network management equipment, so that the power failure warning messages of the wavelength division equipment with power failure can be guaranteed to successfully reach the network management equipment, the reporting reliability of the power failure warning messages is improved, and workers can conveniently identify the network elements which are off-line due to power failure. The staff can confirm that the network element is off-line due to power failure, so that the work of site investigation is avoided, the efficiency is improved, and manpower and material resources are saved.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention and not to limit it; although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art will understand that: modifications to the specific embodiments of the invention or equivalent substitutions for parts of the technical features may be made; without departing from the spirit of the present invention, it is intended to cover all aspects of the invention as defined by the appended claims.
Claims (10)
1. A wavelength division device, comprising:
the power failure detection module comprises a standby signal line which is positioned on an OSC single board of an optical supervisory channel and connected with a power supply circuit, and is used for determining that the wavelength division equipment is powered down when no power supply is input into the standby signal line;
an alarm module, located on the OSC board, configured to generate and send a power-down alarm message when the power-down detection module determines that the wavelength division device is powered down, where the power-down alarm message is an OSC signal frame carrying a power-down identifier, so that the power-down alarm message reaches the OSC board of an opposite-end network element through a passive coupler, a line optical fiber, and an opposite-end coupler, where a working band of the OSC board is suitable for ultra-long distance transmission, and a sensitivity of a receiving end is higher than a working band of service light;
and the warning power supply module is used for supplying power to the power failure detection module and the warning module when the wavelength division equipment is powered down.
2. The device of claim 1, wherein the alarm powering module comprises a capacitor having millisecond power capability.
3. The apparatus of claim 2, wherein the capacitance of the capacitor is not less than 0.1 millifarad.
4. The apparatus of claim 1, 2 or 3,
the power failure warning message also comprises a source node identifier;
the alarm module is used for generating and sending the power-off alarm message and comprises:
the alarm module is configured to generate the power failure alarm message and send the power failure alarm message to an OSC single board of an opposite end network element, so that a network management device determines the wavelength division device having a power failure according to the source node identifier in the power failure alarm message forwarded by the opposite end network element.
5. The apparatus of claim 4, further comprising:
the message receiving module is used for receiving the power failure warning message from other wavelength division equipment;
and the message forwarding module is used for forwarding the power failure warning message received by the message receiving module to the network management equipment.
6. A power failure warning method of wavelength division equipment is characterized by comprising the following steps:
when no power supply is input in a standby signal line which is positioned on an OSC single board of an optical monitoring channel and connected with a power supply circuit, determining that the wavelength division equipment is powered down, and switching to a power down detection module and an alarm module which are arranged on the OSC single board and powered by an alarm power supply module;
the alarm module generates and sends a power-down alarm message, wherein the power-down alarm message is an OSC signal frame carrying a power-down identifier, so that the power-down alarm message can reach an OSC single board of an opposite-end network element through a passive coupler, a line optical fiber and an opposite-end coupler, and the working waveband of the OSC single board is suitable for ultra-long distance transmission, and the sensitivity of a receiving end is higher than that of service light.
7. The method of claim 6, wherein the alarm power module comprises a capacitor having millisecond power capability.
8. The method of claim 7, wherein the capacitance of the capacitor is not less than 0.1 millifarad.
9. The method of claim 6, 7 or 8,
the power failure warning message also comprises a source node identifier;
the generating and sending the power-off warning message comprises: and generating the power failure alarm message and sending the power failure alarm message to an OSC single board of an opposite end network element, so that the network management equipment determines the wavelength division equipment with power failure according to the source node identifier in the power failure alarm message forwarded by the opposite end network element.
10. The method of claim 9, further comprising:
receiving the power failure warning message from other wavelength division equipment;
and forwarding the received power failure warning message to the network management equipment.
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| JP4656244B2 (en) * | 2009-03-30 | 2011-03-23 | ブラザー工業株式会社 | Electronic device and control method in electronic device |
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| CN101088234A (en) * | 2004-12-24 | 2007-12-12 | Jds尤尼弗思公司 | Optical supervisory channel for high span loss optical communication systems |
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