CN113904716A - Optical communication fault detection device, system and method - Google Patents
Optical communication fault detection device, system and method Download PDFInfo
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- CN113904716A CN113904716A CN202111249983.9A CN202111249983A CN113904716A CN 113904716 A CN113904716 A CN 113904716A CN 202111249983 A CN202111249983 A CN 202111249983A CN 113904716 A CN113904716 A CN 113904716A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
- H04B10/075—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal
- H04B10/079—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal using measurements of the data signal
- H04B10/0791—Fault location on the transmission path
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
- H04B10/073—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an out-of-service signal
- H04B10/0731—Testing or characterisation of optical devices, e.g. amplifiers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
- H04B10/075—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal
- H04B10/079—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal using measurements of the data signal
- H04B10/0795—Performance monitoring; Measurement of transmission parameters
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Abstract
The embodiment of the application provides a device, a system and a method for detecting optical communication faults, wherein the device comprises: the optical signal acquisition unit is used for acquiring optical signals; a light attenuation detecting unit for detecting a light attenuation value of the light signal; the operation unit is used for comparing the light attenuation value with a preset threshold value; the communication unit is used for forming a first fault message which represents that a corresponding optical communication fault occurs when the light attenuation value reaches a preset threshold value; the power supply unit is used for supplying power to the communication unit for the first time; and the energy storage unit is used for obtaining power supply and storing energy from the power supply unit, discharging to form second power supply for the communication unit when the power supply unit fails, and driving the communication unit to transmit a second fault message indicating the occurrence of power supply fault outwards. The optical communication fault detection device can automatically correspond to various optical communication faults to carry out accurate message prompt, the fault types are refined, the response time of maintenance personnel is shortened, and the efficiency is effectively improved.
Description
Technical Field
The present application relates to the field of network communication technologies, and in particular, to an optical communication fault detection apparatus, system, and method.
Background
In recent years, with the continuous development of network technology, equipment in a machine room of a network operator also needs to be continuously modified and upgraded, for example, an optical fiber network is used in an existing operator network, and optical communication equipment in the optical fiber network, such as an optical line terminal, etc., is arranged in the machine room. Accordingly, the difficulty of maintaining the equipment is increased. When an optical communication device fails, it is disconnected from the network, causing a "network disconnection event". Sometimes, the specific cause of the fault cannot be accurately positioned immediately, and related workers in different links in the system are required to respectively troubleshoot the fault and verify the cause of the fault, so that the efficiency is extremely low.
Inventing messages
In view of the above-mentioned shortcomings of the prior art, the present application aims to provide an optical communication failure detection apparatus, system and method, which can automatically distinguish various optical communication failures and prompt corresponding messages, thereby effectively improving the efficiency of failure detection and positioning.
The present application provides in a first aspect an optical communication failure detection apparatus, including: the optical signal acquisition unit is used for acquiring optical signals output by an optical communication line and/or a port connected with the optical communication equipment; the optical attenuation detection unit is in communication connection with the optical signal acquisition unit and is used for detecting the optical attenuation value of the optical signal; the operation unit is in communication connection with the light attenuation detection unit and is used for comparing the light attenuation value with a preset threshold value; the communication unit is in communication connection with the operation unit and is used for forming a first fault message which represents the occurrence of a corresponding optical communication fault when the light attenuation value reaches a preset threshold value; the power supply unit obtains power supply from a power supply of the optical communication equipment and is electrically connected with the communication unit to form first power supply for the communication unit; and the energy storage unit is electrically connected with the power supply unit to obtain power supply and store energy, and is electrically connected with the communication unit to discharge to form second power supply for the communication unit when the power supply unit fails, and the communication unit is driven to transmit a second fault message indicating the occurrence of power supply fault outwards.
In some embodiments of the first aspect, the power failure is prioritized over an optical communication failure to be determined.
In some embodiments of the first aspect, the communication unit comprises wireless communication circuitry.
In some embodiments of the first aspect, the communication unit comprises a mobile communication module for connecting to a mobile communication network to transmit the first fault message and the second fault message outwards through the mobile communication network; wherein the form of the first fault message and the second fault message comprises short messages.
In some embodiments of the first aspect, the communication unit is communicatively connected to a detection terminal, and configured to send the first failure message or the second failure message to the detection terminal for display by the detection terminal.
In some embodiments of the first aspect, the optical communication failure detection apparatus further includes: an optical path selecting unit comprising: at least two input ends respectively coupled to an optical communication line and a port connected with the optical communication equipment; and the output end is connected with the input end of the optical signal acquisition unit and used for outputting the optical signal from the selected one of the input ends.
In some embodiments of the first aspect, the optical path selection unit is integrated with the optical signal collection unit.
A second aspect of the present application provides an optical communication failure detection system, including: at least two optical communication failure detection apparatuses according to any one of the first aspects, respectively coupled to the upstream optical communication line of the optical communication device and the optical signal output by the downstream port.
In some embodiments of the second aspect, the optical communication fault detection device on the upstream port side of the optical communication device is configured to detect a line fault according to an optical signal collected from the upstream optical communication line; the optical communication fault detection device on one side of the downlink port of the optical communication equipment is used for detecting the board card fault of the optical communication equipment according to the optical signal collected from the downlink port.
A third aspect of the present application provides an optical communication failure detection system, including: at least one optical communication failure detection apparatus according to the first aspect, at least two input ends of the optical path selection unit of the optical communication failure detection apparatus are respectively coupled to the optical signals output by the uplink optical communication line and the downlink port of the optical communication device, so that one of the optical signals is selected by the optical communication failure detection apparatus for detection.
In some embodiments of the third aspect, the fault detection means is configured to detect a line fault from the optical signal of the selected upstream optical communication line; and detecting the board card fault of the optical communication equipment according to the selected optical signal of the downlink port.
A fourth aspect of the present application provides an optical communication fault detection method, which is applied to a monitoring terminal, where the monitoring terminal communicates with the optical communication fault detection system according to any one of the second aspect and the third aspect; the method comprises the following steps: judging that a power failure occurs according to the received second failure message; or, determining an optical communication failure based on at least one first failure message received from the optical communication failure detection system.
In some embodiments of the fourth aspect, the determining an optical communication failure comprises: when a first fault message indicating that the light attenuation value of the optical signal collected from the uplink optical communication line reaches a first preset threshold value corresponding to a line fault is received, judging that the line fault occurs; or, when a first fault message indicating that the light attenuation value of the optical signal collected from the downlink port reaches a second preset threshold value is received under the condition that the second fault message is not received, it is determined that the board card fault occurs in the optical communication device.
In summary, in the embodiments of the present application, an apparatus, a system and a method for detecting an optical communication failure are provided, where the apparatus includes: the optical signal acquisition unit is used for acquiring optical signals; a light attenuation detecting unit for detecting a light attenuation value of the light signal; the operation unit is used for comparing the light attenuation value with a preset threshold value; the communication unit is used for forming a first fault message which represents that a corresponding optical communication fault occurs when the light attenuation value reaches a preset threshold value; the power supply unit is used for supplying power to the communication unit for the first time; and the energy storage unit is used for obtaining power supply and storing energy from the power supply unit, discharging to form second power supply for the communication unit when the power supply unit fails, and driving the communication unit to transmit a second fault message indicating the occurrence of power supply fault outwards. The optical communication fault detection device can automatically correspond to various optical communication faults to carry out accurate message prompt, the fault types are refined, the response time of maintenance personnel is shortened, and the efficiency is effectively improved.
Drawings
Fig. 1 shows a schematic diagram of an application scenario in an embodiment of the present application.
Fig. 2 shows a schematic structural diagram of an optical communication fault detection apparatus according to an embodiment of the present application.
Fig. 3 shows an application diagram of an optical communication failure detection system according to an embodiment of the present application.
Fig. 4 shows a schematic structural diagram of an optical communication failure detection apparatus in another embodiment of the present application.
Fig. 5 shows a schematic diagram of an application of an optical communication failure detection system in another embodiment of the present application.
Detailed Description
The following description of the embodiments of the present application is provided by way of specific examples, and other advantages and effects of the present application will be readily apparent to those skilled in the art from the disclosure herein. The present application is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present application. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
Embodiments of the present application will be described in detail below with reference to the accompanying drawings so that those skilled in the art to which the present application pertains can easily carry out the present application. The present application may be embodied in many different forms and is not limited to the embodiments described herein.
Reference throughout this specification to "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," or the like, means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. Furthermore, the particular features, structures, materials, or characteristics shown may be combined in any suitable manner in any one or more embodiments or examples. Moreover, various embodiments or examples and features of different embodiments or examples presented in this application can be combined and combined by those skilled in the art without contradiction.
Furthermore, the terms "first", "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the expressions of the present application, "plurality" means two or more unless specifically defined otherwise.
In order to clearly explain the present application, elements that are not relevant to the description are omitted, and the same reference numerals are given to the same or similar components throughout the specification.
Throughout the specification, when it is said that a certain element is "connected" to another element, this includes not only the case of "directly connecting" but also the case of "indirectly connecting" with another element interposed therebetween. In addition, when a certain element "includes" a certain constituent element, unless otherwise stated, it means that other constituent elements may be included without excluding other constituent elements.
Although the terms first, second, etc. may be used herein to describe various elements in some instances, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. For example, the first interface and the second interface are represented. Also, as used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context indicates otherwise. It will be further understood that the terms "comprises," "comprising," "includes" and/or "including," when used in this specification, specify the presence of stated features, steps, operations, elements, modules, items, species, and/or groups, but do not preclude the presence, occurrence, or addition of one or more other features, steps, operations, elements, modules, items, species, and/or groups thereof. The terms "or" and/or "as used herein are to be construed as inclusive or meaning any one or any combination. Thus, "A, B or C" or "A, B and/or C" means "any of the following: a; b; c; a and B; a and C; b and C; A. b and C ". An exception to this definition will occur only when a combination of elements, functions, steps or operations are inherently mutually exclusive in some way.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the singular forms "a", "an" and "the" include plural forms as long as the words do not expressly indicate a contrary meaning. The term "comprises/comprising" when used in this specification is taken to specify the presence of stated features, regions, integers, steps, operations, elements, and/or components, but does not exclude the presence or addition of other features, regions, integers, steps, operations, elements, and/or components.
Although not defined differently, including technical and scientific terms used herein, all terms have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. Terms defined in commonly used dictionaries are to be additionally interpreted as having meanings consistent with those of related art documents and currently prompted messages, and should not be excessively interpreted as having ideal or very formulaic meanings unless defined.
With the continuous development of network technology, for example, the demand of the 5G network of the internet of things is more and more vigorous, and the equipment of the corresponding operator network is also upgraded correspondingly. For example, a network operator may deploy a fiber optic network to meet the requirement of high-speed network transmission, and an optical communication device, such as an Optical Line Terminal (OLT) or the like, may be disposed in an operator room.
Problems sometimes occur with optical communication devices, and an offline event, i.e., an offline of the network, occurs. However, the reason for the occurrence of the offline event is not unique, and the offline event is caused by the "equipment failure" of the optical communication equipment and the "line failure" of the optical communication line (such as an optical cable) of the optical communication equipment connected to the optical network.
Further, "equipment failure" can be classified into types such as "power failure" and "board failure". Specifically, the power failure refers to a failure of power supply of the optical communication device, which results in the optical communication device being unable to work and disconnected. The board card failure refers to a failure of an optical transmission board card in the optical communication equipment, which causes the optical communication equipment to be out of line due to the fact that the optical communication equipment cannot work normally. The line fault refers to a fault of an uplink optical communication line connecting the optical communication equipment, and can also cause the optical communication equipment to be disconnected.
Therefore, the optical communication equipment may be disconnected due to various reasons such as power supply, equipment board card, line, etc., and needs to be identified respectively. Moreover, if a power supply is connected to detect a power failure fault through, for example, a power failure alarm, it is often necessary to rely on the power supply (such as mains supply) of the optical communication device, and once the mains supply is powered off, the power failure alarm is powered off, and the alarm information cannot be sent. In addition, "board faults" and "line faults" are finally expressed as the problem that signals of an optical communication line cannot be communicated, if the board faults of the optical communication equipment are detected through the infrared shaft temperature detector, the system-level fault detection and positioning is high in cost, and detection results are not necessarily accurate due to the fact that technical standards of detection products of different manufacturers possibly differ. The detection of line faults often requires manual positioning of the distances between fault points and test points of the optical cable.
For clearly illustrating the detection of the above-mentioned fault, fig. 1 shows a schematic diagram of an application scenario in the embodiment of the present application. In this application scenario, an optical communication network is exemplarily represented by the connection of two optical communication devices.
In fig. 1, a first optical communication device 101 and a second optical communication device 102 in an optical communication network are shown, and the first optical communication device 101 and the second optical communication device 102 are connected by an optical communication line. It is assumed that an upstream port of the first optical communication device 101 is connected to an upstream optical communication line 103, and a downstream port is connected to an upstream port of the second optical communication device 102 via a downstream optical communication line 104. In some embodiments, the first optical communication device 101 is an OLT device, and the second optical communication device 102 is an ONU device, which are connected via an optical transport network (ODN). The downstream port of the first optical communication device 101 is the downstream PON port of the OLT device, and the corresponding upstream port of the second optical communication device 102 is the upstream PON port of the ONU device. It should be noted that "upstream" and "downstream" herein are changed from the first optical communication device 101 to the second optical communication device 102 according to the optical communication device, for example, the downstream optical communication line 104 is an upstream optical communication line of the second optical communication device 102.
If the first optical communication device 101 has a "power failure" or a "board failure", the first optical communication device 101 cannot operate normally, and is disconnected from the network, and the optical signal of the downlink optical communication line 104 is not passed. If the upstream optical communication line 103 has a "line fault", the first optical communication apparatus 101, although operating by itself, is disconnected from the upstream apparatus and becomes disconnected from the network.
The embodiment of the application provides an optical communication fault detection device, can carry out automatic detection to different characteristics that performance such as "power failure", "board card trouble", "line fault" to correspond the multiple trouble that discernment caused optical communication equipment off-line incident and report an emergency and ask for help or increased vigilance, solve prior art's problem.
The explanation is made with respect to the different characteristics exhibited by "power failure", "board failure", "line failure", and the like.
In some embodiments, a "board failure" may manifest as a weak or absent optical signal at the downstream port of the optical communication device, and a "line failure" may manifest as a weak or absent optical signal at the upstream line to which the upstream port of the optical communication device is connected. Therefore, whether a line fault exists can be judged by detecting whether the optical attenuation value of the optical signal of the uplink optical communication line 103 connected to the uplink port of the optical communication device reaches a first preset threshold value, for example, if the optical attenuation value reaches-40 db, the line is not connected; in addition, when no line fault occurs according to the optical attenuation value of the optical signal of the uplink optical communication line 103 and the optical communication device has no power failure, it may also be determined whether the board fault exists in the optical communication device by detecting whether the optical attenuation value output by the downlink port of the optical communication device reaches a second preset threshold (for example, reaches-28 db). Specifically, the optical signal may be collected through the downstream optical communication line 104 connected from the downstream port.
The "power failure" may be represented by that the power supply of the optical communication device is turned off, and the power supply voltage, the current, etc. are 0, and the "power failure" may be determined by detecting whether the power supply voltage, the current, etc. inside the optical communication device are 0. In some embodiments, considering that power is also needed for the message for sending the fault alarm, certain power needs to be still provided for the circuit module for sending the message when the power is disconnected. Plate card fault "
In some possible embodiments, the preset threshold values of the light attenuation values corresponding to the "board fault" and the "line fault" may be different; the preset threshold values corresponding to the "board fault" of the optical communication devices of different manufacturers and types may also be different. Therefore, it is possible to determine that an optical communication failure has occurred by determining that the light attenuation value of the optical signal reaches a preset threshold value. For example, the board card faults can be further subdivided according to the faults of different board cards, the preset threshold corresponding to each board card fault is different, and the larger the absolute value of the preset threshold is, the more serious the corresponding board card fault may be. For example, the preset threshold values are-29 db and-28 db, and a board fault corresponds to the preset threshold values, and the board fault corresponding to the-29 db is more serious than the board fault corresponding to the-28 db.
Fig. 2 is a schematic structural diagram of an optical communication failure detection apparatus 200 according to an embodiment of the present application. The optical communication fault detection apparatus 200 can provide detection of various fault types such as a power failure, a board fault, a line fault, and the like, and can perform an alarm.
In this embodiment, the optical communication failure detection apparatus 200 includes: the device comprises an optical signal acquisition unit 201, a light attenuation detection unit 202, an arithmetic unit 203, a communication unit 204, a power supply unit 205 and an energy storage unit 206.
The optical signal collection unit 201 is configured to collect an optical signal output by an optical communication line and/or a port connected to the optical communication device. In some embodiments, the optical signal collection unit 201 may include a fiber signal collector. The fiber signal collector may comprise an optical device, and the optical signal is introduced from the optical cable through the optical device (such as a lens, a beam splitter, an optical filter, etc.).
The light attenuation detecting unit 202 is communicatively connected to the optical signal collecting unit 201, and is configured to detect a light attenuation value of the optical signal. The input end of the light attenuation detecting unit 202 may be connected to the output end of the optical signal collecting unit 201 to receive the input of the collected optical signal. In some embodiments, the light decay detection unit 202 may comprise a light decay tester. In a specific example, the optical signal collection unit 201 and the light decay detection unit 202 may be integrated into a single device.
The operation unit 203 is communicatively connected to the light attenuation detection unit 202, and is configured to compare the light attenuation value with a preset threshold. In some embodiments, the predetermined threshold is used to determine whether a fault, such as an optical attenuation of the upstream optical communication line 103 above, for example, -40db (e.g., -41db, -42 db..), indicates that the optical signal power is abnormal, weak or absent; for another example, an optical attenuation value at the downstream port of, for example, above-28 db (e.g., -29db, -30 db..) may be used to indicate that the optical signal is not properly powered, weak or absent. In a specific example, the operation unit 203 may be implemented by a circuit of a comparator, and may also be implemented by a processor (such as an MCU, an FPGA, an SoC, and the like) having a comparator function. In some embodiments, the operation unit 203 may output different indication signals according to whether the light attenuation value reaches or does not reach the preset threshold, such as "0" corresponding to not reaching, or "1" corresponding to reaching, etc.
The communication unit 204 is communicatively connected to the operation unit 203, and is configured to form a first fault message indicating that a corresponding optical communication fault occurs when the light attenuation value reaches a preset threshold (for example, "1" is received). In some embodiments, the communication unit 204 may be a wireless communication circuit, and transmit the message wirelessly, thereby eliminating the need for wiring for wired communication. In a specific example, the communication unit 204 may include a mobile communication module (e.g. GSM) for connecting to a mobile communication network, so as to transmit the first fault message and the second fault message to the outside through the mobile communication network (i.e. the 2G cellular communication network of the mobile operator); wherein the form of the first fault message and the second fault message comprises short messages.
The power supply unit 205 obtains power from the power supply of the optical communication device, and is electrically connected to the communication unit 204 to form a first power supply for the communication unit 204. In some embodiments, the power supply of the optical communication device is mains power, which is converted into a suitable operating voltage by a power circuit inside the optical communication device, and the power unit 205 may be a voltage source led out from the power circuit.
The energy storage unit 206 is electrically connected to the power supply unit 205 to obtain power supply and store energy, and the energy storage unit 206 is electrically connected to the communication unit 204 to discharge to form a second power supply for the communication unit 204 when the power supply unit 205 fails, so as to drive the communication unit 204 to transmit a second failure message indicating that a power failure occurs. The failure of the power supply unit 205 is caused by, for example, a mains disconnection (if there is a UPS, the UPS may be damaged at the same time), or a power circuit damage. In order to respond to the power failure and fail to supply power to the communication unit 204 to send out the second fault message, the energy storage unit 206 is configured to temporarily supply power to the communication unit 204 by storing energy when the power supply is available and discharging when the power supply is powered off through the energy storage unit 206, so as to ensure the sending of the second fault message. In a specific example, the energy storage unit 206 may include a capacitor, and the capacitance of the capacitor may be configured to maintain the operating voltage of the communication unit 204 for a time sufficient for the second fault message to be sent out.
In some embodiments, when the communication unit 204 is a mobile communication unit 204, the first failure message and the second failure message may be in the form of short messages.
The communication unit 204 may be communicatively coupled to a monitoring terminal, and configured to send the first failure message or the second failure message to the monitoring terminal for display by the monitoring terminal. In some embodiments, the monitoring terminal may be, for example, a mobile phone, a tablet computer, or the like; the monitoring terminal may be a communication device capable of accessing a mobile communication network, such as a mobile phone with an inserted SIM card, a tablet computer, or other communication devices, corresponding to the first fault message and the second fault message in the form of short messages sent by the GSM module. In a specific example, the maintenance personnel can know the occurrence of the fault from the first fault message and the second fault message received by the monitoring terminal, so that the repair of the optical communication equipment or the line can be quickly performed.
Fig. 3 is a schematic structural diagram of an optical communication failure detection system according to an embodiment of the present application.
In this embodiment, an example is performed on the basis of the scenario illustrated in fig. 1, in which a first optical communication device 101 and a second optical communication device 102 are shown, an upstream port of the first optical communication device 101 is connected to an upstream optical communication line 103, and a downstream port of the first optical communication device 101 is connected to an upstream port of the second optical communication device 102 via a downstream optical communication line 104.
The optical communication failure detection system may include at least two optical communication failure detection apparatuses. In the present embodiment, for exemplifying the fault detection at the first optical communication device 101, only 2 optical communication fault detection apparatuses, i.e., the first optical communication fault detection apparatus 301 and the second optical communication fault detection apparatus 302, are exemplarily shown. The first optical communication failure detection apparatus 301 and the second optical communication failure detection apparatus 302 may be implemented by the optical communication failure detection apparatus 200 in fig. 2.
The first optical communication failure detection device 301 is coupled to the upstream optical communication line 103 of the first optical communication apparatus 101, and the second optical communication failure detection device 302 is coupled to the downstream optical communication line 104 connected to the downstream port of the first optical communication apparatus 101. The first optical communication failure detection device 301 and the second optical communication failure detection device 302 may communicate with the monitoring terminal 303 through respective communication units.
Because the optical communication equipment can output weak or no optical signals when the power is cut off, if the optical communication monitoring device is powered by a power supply of the optical communication equipment and cannot continuously monitor the 'board fault' and the 'line fault' when the power fails, the 'power-off fault' can be preferentially eliminated before the 'board fault' and the 'line fault' are judged. That is, at least one of the first optical communication failure detection device 301 and the second optical communication failure detection device 302 may be powered by a power supply of the first optical communication device 101, when the first optical communication device 101 is powered off, the first optical communication failure detection device 301 and/or the second optical communication failure detection device 302 may send out second failure information (for example, a short message containing "power failure" related content) to the outside, and when the monitoring terminal 303 receives the second failure information, it is known that the power failure occurs in the first optical communication device 101, and the first optical communication failure message related to the first optical communication device 101 may not be sent any more, even if there is (for example, the first optical communication failure message is sent when the energy storage unit discharges) there is no need to be considered.
The first optical communication fault detection apparatus 301 is coupled to the upstream optical communication line 103 of the first optical communication device 101, so as to collect optical signals to perform "line fault" related detection, and generate and transmit a corresponding first fault message (for example, a short message containing "line fault" related content) when a line fault is found (an optical attenuation value reaches a first preset threshold value). The second optical communication fault detection apparatus 302 may be coupled to the downlink optical communication line 104 connected to the downlink port of the first optical communication device 101, collect optical signals to perform a relevant detection on a "board fault", and generate and transmit a corresponding first fault message (for example, a short message including a relevant content of the "board fault") when it is found that the board fault may be (the optical attenuation value reaches a second preset threshold value).
In some embodiments, the content of the first failure message may be configured in the failure detection device in advance, and may be configured selectively according to the connection position of the failure detection device, for example, the first optical communication failure detection device 301 configures the content related to "line failure", and the second optical communication failure detection device configures the content related to "board failure".
In some embodiments, the first optical communication failure detection apparatus 301 and the second optical communication failure detection apparatus 302 may each have a unique Identification (ID), which may be included in their respective transmitted messages to be identified. The monitoring terminal 303 may identify the first optical communication failure detection device 301 and the second optical communication failure detection device 302 according to the ID in the received failure message.
In another embodiment, the fault location of the equipment offline event can also be performed by an optical communication fault detection device.
Fig. 4 is a schematic structural diagram of an optical communication failure detection apparatus 400 according to another embodiment of the present application.
Compared with the embodiment of fig. 2, the difference of the present embodiment is that the optical communication failure detection apparatus 400 further includes an optical path selection unit 407 in addition to the optical signal acquisition unit 401, the optical attenuation detection unit 402, the operation unit 403, the communication unit 404, the power supply unit 405, and the energy storage unit 406. The optical signal acquisition unit 401, the light attenuation detection unit 402, the operation unit 403, the communication unit 404, the power supply unit 405, and the energy storage unit 406 may be respectively the same as the optical signal acquisition unit 201, the light attenuation detection unit 202, the operation unit 203, the communication unit 204, the power supply unit 205, and the energy storage unit 206 in the embodiment of fig. 2.
The optical path selecting unit 407 includes: at least two input ends respectively coupled to an optical communication line and a port connected with the optical communication equipment; and an output terminal connected to the input terminal of the optical signal collection unit 401, for outputting the optical signal from the selected one of the input terminals. In some embodiments, the optical path selection unit 407 may be integrated with the optical signal collection unit 401. For example, the optical path selection unit 407 is integrated as one component into the optical path acquisition unit.
In a specific example, the optical path selecting unit 407 may select one of the optical signals according to an externally input selection signal, and perform fault detection according to the selected optical signal. For example, the detection of "line fault" is performed according to the selected optical signal collected from the upstream optical communication line 103; or, the detection of the "board fault" is performed according to the selected optical signal collected from the downlink optical communication line 104.
The operation unit 403 can also be used for comparing the light attenuation values of the two optical signals with corresponding preset thresholds so as to determine line faults and board faults. Specifically, the operation unit 403 may be configured to determine that a line fault occurs when an optical attenuation value of an optical signal collected from the uplink optical communication line 103 reaches a first preset threshold corresponding to the line fault; or, the operation unit 403 is configured to determine that a board card fault occurs in the optical communication device when the optical attenuation value of the optical signal acquired from the downlink port reaches a second preset threshold.
Fig. 5 is a schematic structural diagram of an optical communication failure detection system according to another embodiment of the present application.
The difference from the embodiment of fig. 3 mainly lies in that the optical communication failure detection system in the present embodiment includes at least one optical communication failure detection apparatus 501, and the optical communication failure detection apparatus 501 may be implemented by at least one optical communication failure detection apparatus 400 in the embodiment of fig. 4.
An input end of the optical path selection unit in the optical communication fault detection apparatus 501 is coupled to the uplink optical communication line 103 connected to the uplink port of the first optical communication device 101, so as to collect a first optical signal; the other input end of the optical path selecting unit may be coupled to the downlink optical communication line 104 connected to the downlink port of the first optical communication device 101 to collect the second optical signal, and the optical path selecting unit may select one of the optical signals to be output from the output end thereof to the optical signal collecting unit.
When the optical communication fault detection apparatus 501 selects the first optical signal to perform fault detection, if the optical attenuation value of the first optical signal reaches a first preset threshold (for example, line optical attenuation-40 db corresponding to an optical line fault), a first fault message indicating a line fault is generated and sent. When the power failure occurs, the optical communication failure detection apparatus 501 generates a second failure message and sends the second failure message to the outside; when the power failure does not occur, if the communication fault detection device selects the second path of optical signal to perform fault detection, and the light attenuation value of the second path of optical signal reaches a second preset threshold value (for example, minus 28db of the light attenuation of the port corresponding to the board fault) through comparison, the line has a fault, and a first fault message indicating the board fault is generated and sent. The two first fault messages corresponding to the line fault and the board fault need to be distinguished, for example, the contents are different, one text content related to the line fault and the other text content related to the board fault; or for example, the identifiers are different, the first fault message corresponding to the line fault includes the first identifier, and the first fault message corresponding to the board fault includes the second identifier.
The monitoring terminal 503 can locate the fault according to the first fault message and the second fault message. The monitoring terminal 503 may be the same as the monitoring terminal 303.
It is to be understood that in the above embodiments of fig. 3 and 5, the failure detection principle of performing the offline event on the first network device is only exemplarily illustrated. However, in an actual optical network, there may be a plurality of optical communication devices, each of which may be configured with an optical communication failure detection system as shown in fig. 3 or fig. 5, and each of the optical communication failure detection apparatuses 501 corresponding to each of the optical communication devices may communicate with a monitoring terminal, and may be distinguished from each other by the ID of each of the optical communication failure detection apparatuses 501 in the message. Therefore, maintenance personnel can quickly and accurately position which optical communication equipment in the optical network is disconnected according to the received fault message at the monitoring terminal, and know the fault type.
In the above embodiments, the optical communication failure detection apparatus 200, 400 may be an independent device separate from the optical communication device. In still other embodiments, one or more optical communication failure detection apparatus may also be integrated with the optical communication device. For example, the optical path selection unit, the optical signal acquisition unit, and the optical attenuation detection unit of the optical communication failure detection apparatus may be located in an optical communication device, the operation unit may be implemented by a processor in a board of the optical communication device, the communication unit may be disposed in the board, the power supply unit is implemented by a power supply circuit of the optical communication device, and the energy storage unit is also integrated in the power supply circuit.
The embodiment of the present application may further provide an optical communication fault detection method, which is applied to the optical communication fault detection system in the embodiment of fig. 3 or fig. 5, for example. The method specifically comprises the following steps: triggered by a power failure of the optical communication device to form and transmit outward; or comparing the light attenuation value of the collected light signal with a plurality of preset threshold values, and when the light attenuation value reaches the preset threshold values, forming a corresponding first fault message to be transmitted outwards.
In some embodiments, the determining an optical communication failure comprises: when a first fault message indicating that the light attenuation value of the optical signal collected from the uplink optical communication line reaches a first preset threshold value corresponding to a line fault is received, judging that the line fault occurs; or, when a first fault message indicating that the light attenuation value of the optical signal collected from the downlink port reaches a second preset threshold value is received under the condition that the second fault message is not received, it is determined that the board card fault occurs in the optical communication device.
In summary, in the embodiments of the present application, an apparatus, a system and a method for detecting an optical communication failure are provided, where the apparatus includes: the optical signal acquisition unit is used for acquiring optical signals; a light attenuation detecting unit for detecting a light attenuation value of the light signal; the operation unit is used for comparing the light attenuation value with a preset threshold value; the communication unit is used for forming a first fault message which represents that a corresponding optical communication fault occurs when the light attenuation value reaches a preset threshold value; the power supply unit is used for supplying power to the communication unit for the first time; and the energy storage unit is used for obtaining power supply and storing energy from the power supply unit, discharging to form second power supply for the communication unit when the power supply unit fails, and driving the communication unit to transmit a second fault message indicating the occurrence of power supply fault outwards. The optical communication fault detection device can automatically correspond to various optical communication faults to carry out accurate message prompt, the fault types are refined, the response time of maintenance personnel is shortened, and the efficiency is effectively improved.
The above embodiments are merely illustrative of the principles and utilities of the present application and are not intended to limit the application. Any person skilled in the art can modify or change the above-described embodiments without departing from the spirit and scope of the present application. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical concepts disclosed in the present application shall be covered by the claims of the present application.
Claims (13)
1. An optical communication failure detection apparatus, comprising:
the optical signal acquisition unit is used for acquiring optical signals output by an optical communication line and/or a port connected with the optical communication equipment;
the optical attenuation detection unit is in communication connection with the optical signal acquisition unit and is used for detecting the optical attenuation value of the optical signal;
the operation unit is in communication connection with the light attenuation detection unit and is used for comparing the light attenuation value with a preset threshold value;
the communication unit is in communication connection with the operation unit and is used for forming a first fault message which represents the occurrence of a corresponding optical communication fault when the light attenuation value reaches a preset threshold value;
the power supply unit obtains power supply from a power supply of the optical communication equipment and is electrically connected with the communication unit to form first power supply for the communication unit;
and the energy storage unit is electrically connected with the power supply unit to obtain power supply and store energy, and is electrically connected with the communication unit to discharge to form second power supply for the communication unit when the power supply unit fails, and the communication unit is driven to transmit a second fault message indicating the occurrence of power supply fault outwards.
2. The optical communication failure detection apparatus according to claim 1, wherein the power failure is prioritized over an optical communication failure to be determined.
3. The optical communication failure detection apparatus according to claim 1, wherein the communication unit includes a wireless communication circuit.
4. The optical communication failure detection apparatus according to claim 1, wherein the communication unit includes a mobile communication module for connecting to a mobile communication network to transmit the first failure message and the second failure message to the outside through the mobile communication network; wherein the form of the first fault message and the second fault message comprises short messages.
5. The optical communication failure detection device of claim 1, wherein the communication unit is communicatively connected to a detection terminal for sending the first failure message or the second failure message to the detection terminal for display by the detection terminal.
6. The optical communication failure detection apparatus according to claim 1, further comprising:
an optical path selecting unit comprising:
at least two input ends respectively coupled to an optical communication line and a port connected with the optical communication equipment;
and the output end is connected with the input end of the optical signal acquisition unit and used for outputting the optical signal from the selected one of the input ends.
7. The optical communication failure detection apparatus of claim 6, wherein the optical path selection unit is integrated with the optical signal collection unit.
8. An optical communication failure detection system comprising:
at least two optical communication failure detection apparatuses according to any one of claims 1 to 7, respectively coupled to the upstream optical communication line and the optical signal output from the downstream port of the optical communication device.
9. The optical communication fault detection system according to claim 8, wherein the optical communication fault detection device on the upstream port side of the optical communication apparatus is configured to detect a line fault according to an optical signal collected from the upstream optical communication line; the optical communication fault detection device on one side of the downlink port of the optical communication equipment is used for detecting the board card fault of the optical communication equipment according to the optical signal collected from the downlink port.
10. An optical communication failure detection system, comprising:
at least one optical communication failure detection apparatus according to claim 6 or 7, wherein at least two input terminals of the optical path selection unit are respectively coupled to the optical signals output by the upstream optical communication line and the downstream port of the optical communication device, so that one of the optical signals is selected by the optical communication failure detection apparatus for detection.
11. The optical communication failure detection system according to claim 10, wherein the failure detection means is configured to detect a line failure based on the optical signal of the selected upstream optical communication line; and detecting the board card fault of the optical communication equipment according to the selected optical signal of the downlink port.
12. An optical communication failure detection method applied to a monitoring terminal which communicates with the optical communication failure detection system according to any one of claims 8 to 9 or 10 to 11; the method comprises the following steps:
judging that a power failure occurs according to the received second failure message;
alternatively, the first and second electrodes may be,
determining an optical communication failure based on at least one first failure message received from the optical communication failure detection system.
13. The optical communication failure detection method according to claim 12, wherein the determining an optical communication failure includes:
when a first fault message indicating that the light attenuation value of the optical signal collected from the uplink optical communication line reaches a first preset threshold value corresponding to a line fault is received, judging that the line fault occurs;
or, when a first fault message indicating that the light attenuation value of the optical signal collected from the downlink port reaches a second preset threshold value is received under the condition that the second fault message is not received, it is determined that the board card fault occurs in the optical communication device.
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