CN112564785A - ODN device, optical fiber splice closure, network detection device and optical distribution network - Google Patents

ODN device, optical fiber splice closure, network detection device and optical distribution network Download PDF

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Publication number
CN112564785A
CN112564785A CN202011303465.6A CN202011303465A CN112564785A CN 112564785 A CN112564785 A CN 112564785A CN 202011303465 A CN202011303465 A CN 202011303465A CN 112564785 A CN112564785 A CN 112564785A
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optical
interface
detection
component
splitter
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CN112564785B (en
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金超
董振华
董小龙
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B10/00Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/07Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
    • H04B10/075Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal
    • H04B10/079Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal using measurements of the data signal
    • H04B10/0791Fault location on the transmission path

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  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Optical Communication System (AREA)

Abstract

The application discloses ODN equipment, optical fiber splice box, network detection equipment and light distribution network belongs to communication technology field. The ODN equipment and the optical fiber connector box provided by the embodiment of the application are additionally provided with the state detection assembly, and the state detection assembly can be used for separating a small part of optical signals from the transmission light path inside the ODN equipment and the optical fiber connector box and is specially used for state detection, so that the state detection assembly can indicate the network state according to the state detection result of the optical signals, and the separated small part of light can not influence the normal optical signal transmission. When the ODN equipment and the optical fiber connector box provided by the embodiment of the application are applied to the optical distribution network, a user can determine the fault occurrence position and the fault occurrence reason of the optical distribution network according to the network state indicated by the state detection components in the ODN equipment and the optical fiber connector box, so that the user does not need professional knowledge, and the network experience of the user can be effectively improved.

Description

ODN device, optical fiber splice closure, network detection device and optical distribution network
Technical Field
The application relates to the technical field of communication, in particular to ODN equipment, an optical fiber splice closure, network detection equipment and an optical distribution network.
Background
As the demand for network quality increases, Fiber To The Home (FTTH) is gradually moving towards Fiber To The Room (FTTR). FTTR means that an operator network directly reaches a room through a home optical distribution network and is connected to an edge Optical Network (ONT) terminal installed in the room. The edge ONT terminal only covers the room as a network hotspot, so that the power of network signals is ensured, the interference with the signals of other rooms is avoided, and the network experience of a user can be greatly improved.
During operation of the home optical distribution network, a failure may occur. However, users often lack professional knowledge, so when a home optical distribution network fails, it is generally difficult to determine the cause and location of the failure, which causes the failure to timely maintain the network and affects the users to use the network.
Disclosure of Invention
The embodiment of the application provides Optical Distribution Network (ODN) equipment, an optical fiber splice closure, network detection equipment and an optical distribution network, and can solve the technical problem that the cause and the position of a fault are difficult to determine in a household optical distribution network, and the technical scheme of the ODN equipment, the optical fiber splice closure, the network detection equipment and the optical distribution network is as follows:
in a first aspect, an ODN device is provided, which includes a plurality of common interface components, a main splitter, a plurality of branch interface components, and a status detection assembly. The common interface component is configured to interface with a trunk optical fiber and transmit an optical signal transmitted by the trunk optical fiber to the main optical splitter. The main optical splitter is configured to split an input optical signal into a plurality of optical signals and transmit the optical signals to a plurality of branch interface units, respectively. The branch interface component is configured to interface with a branch optical fiber to transmit an optical signal to the branch optical fiber. The state detection component is configured to drop a portion of the optical signal from the transmission optical path between the common interface component and the branch interface component for state detection.
The common interface component is configured to be in butt joint with the trunk optical fiber, a socket for butting the trunk optical fiber is externally provided, and an optical signal transmitted by the trunk optical fiber can be introduced into the main optical splitter. The common interface component may also be referred to as a common terminal component, a common socket component, etc.
The main optical splitter is the most basic functional component of the ODN device, and includes an uplink optical interface and a plurality of downlink optical interfaces, and can split an input 1-path optical signal into multiple optical signals and output the optical signals, where optical powers of the multiple optical signals may be the same. Illustratively, the main splitter may be a 1:4 splitter, and can split an input 1-path optical signal into 4-path optical signals and output the optical signals.
The drop interface component is configured to interface with a drop optical fiber, providing externally a receptacle that interfaces with the drop optical fiber, and is capable of transmitting optical signals inside the ODN device to the drop optical fiber. The branch interface component may also be referred to as a branch terminal component, a branch socket component, etc.
The state detection module is a module introduced for state detection, and can drop a part of the optical signal for state detection from the transmission optical path between the common interface section and the branch interface section.
In the solution shown in the embodiment of the present application, a state detection component is additionally disposed in the ODN device provided in the embodiment of the present application, and the state detection component can branch a part of optical signals from a transmission optical path between the common interface component and the branch interface component for state detection, so that the state detection component can directly or indirectly indicate a network state according to the magnitude of optical power of the branched part of optical signals.
In one possible implementation, the state detection component includes at least one detection splitter and at least one detection component. The detection optical splitter is configured to split a part of the optical signal from the transmission optical path between the common interface section and the branch interface section and transmit the split optical signal to the detection section. The detection component is configured to indicate a network status based on an optical power of an input optical signal.
The detection optical splitter comprises an uplink optical interface and two downlink optical interfaces. The uplink optical interface of the detection optical splitter is connected with any position of a transmission optical path between the public interface component and the branch interface component, an optical signal output by one downlink optical interface of the detection optical splitter is output to the transmission optical path and used for normally transmitting data, and an optical signal output by the other downlink optical interface is output to the detection component.
When indicating the network state, the detection component may directly indicate the network state itself, or may cooperate with the network detection device to indicate the network state. Illustratively, the detection component may be a status indication component, such as an indicator light, or may be a detection interface component.
In one possible implementation, the at least one detection splitter includes at least one first detection splitter, and the at least one detection component includes at least one first detection component. The uplink optical interface of the main optical splitter is connected with the common interface component, the main optical splitter comprises a plurality of downlink optical interfaces, at least one downlink optical interface of the main optical splitter is connected with the uplink optical interface of the first detection optical splitter, and each of the other downlink optical interfaces of the main optical splitter is connected with one branch interface component. Each of the first detection optical splitters includes a first downlink optical interface and a second downlink optical interface, each of the first downlink optical interfaces is connected to one of the branch interface components, and each of the second downlink optical interfaces is connected to one of the first detection components.
In the embodiment of the present application, the uplink optical interface of the main optical splitter is connected to the common interface component, the downlink optical interface of the main optical splitter is connected to the uplink optical interface of the first detection optical splitter, the downlink optical interface of the main optical splitter is connected to the branch interface component, the first downlink optical interface is connected to the branch interface component, and the second downlink optical interface is connected to the first detection component, which refer to optical path connection, for example, connection through optical devices such as optical fibers.
According to the scheme shown in the embodiment of the application, the detection optical splitter can split light from the downlink optical interface of the main optical splitter to the transmission optical path between the branch interface components. Such a detection beam splitter may be referred to as a first detection beam splitter, and a detection section connected to the first detection beam splitter may be referred to as a first detection section.
The first detection component can indicate a state of the optical path before the first detection component, for example, can indicate a state of a target downstream optical interface of a main splitter in the ODN device, wherein the target downstream optical interface is connected with a target first detection splitter, and the target first detection splitter is connected with the first detection component. As another example, the first detection component can also indicate a status at which a main Optical Network Terminal (ONT) is connected to the ODN device.
In a possible implementation manner, the first detection splitter and the first detection component are multiple and correspond to each other one by one. Each downlink optical interface of the main optical splitter is connected with an uplink optical interface of one first detection optical splitter.
According to the scheme shown in the embodiment of the application, through the design, the first detection component can more accurately indicate the state of each branch interface component.
In a possible implementation manner, the first detection component and the branch interface component are located on the same wall of the casing of the ODN device, and the positions of the first detection component and the branch interface component correspond to each other one by one.
According to the scheme shown in the embodiment of the application, through the design, a user can conveniently determine the corresponding relation between the first detection component and the branch interface component, and when the indication state of one first detection component is abnormal, the user can conveniently know the fault of the branch interface component corresponding to the first detection component.
In one possible implementation, the at least one detection splitter includes a second detection splitter, and the at least one detection component includes a second detection component. The uplink optical interface of the second detection optical splitter is connected with the common interface component, the second detection optical splitter comprises a third downlink optical interface and a fourth downlink optical interface, the third downlink optical interface is connected with the uplink optical interface of the main optical splitter, and the fourth downlink optical interface is connected with the second detection component. Each downstream optical interface of the main splitter is connected to one of the branch interface components.
In this embodiment, the uplink optical interface of the second detection optical splitter is connected to the common interface component, the third downlink optical interface is connected to the uplink optical interface of the main optical splitter, the fourth downlink optical interface is connected to the second detection component, and the downlink optical interface of the main optical splitter is connected to the branch interface component, which all refer to optical path connections, for example, optical connections through optical fibers and other optical devices.
In the solution shown in the embodiment of the present application, the detection optical splitter may also split light from the downlink optical interface of the main optical splitter to the transmission optical path between the branch interface components. Such a detection beam splitter may be referred to as a second detection beam splitter, and a detection section connected to the second detection beam splitter may be referred to as a second detection section.
The second detection component is capable of indicating the state of the optical path before the second detection component, e.g. may indicate the state where the ONT terminal is connected to the ODN device.
In one possible implementation, the detecting component is a status indicating component, and the detecting component is configured to indicate that the status is abnormal when the optical power of the input optical signal is less than a target optical power threshold.
In the solution shown in the embodiment of the present application, the manner in which the detection component indicates the network state is not limited. Illustratively, the detection part comprises one or more of an indicator light, a buzzer and a display screen, and the detection part can indicate the network state through a sound signal, a light signal or a displayed image signal or a text signal.
For example, when the detection component includes an indicator light, the detection component may be configured to emit light of a first color when the optical power of the input optical signal is less than a target optical power threshold, and to emit light of a second color when the optical power of the input optical signal is greater than the target optical power threshold, the first color and the second color being different, and the first color being used to indicate a condition anomaly. For example, the first color may be red, and the second color may be green, but is not limited thereto.
In one possible implementation, the detection component is configured to calculate a corresponding optical power from the input optical signal and display the calculated optical power.
In the solution shown in the embodiment of the present application, the detection component may further include a display screen, and then the detection component may further calculate the corresponding optical power according to the input optical signal, and display the calculated optical power. The optical power displayed by the detection component may be the actual optical power input to the detection component, or the optical power input to the detection optical splitter, or the optical power output by the downlink optical interface of the detection optical splitter.
In one possible implementation, the common interface component includes a common optical interface sub-component and a common electrical interface sub-component. The common electrical interface subassembly is configured to connect with an external power source. The public electrical interface sub-assembly is electrically connected with the detection assembly.
According to the scheme shown in the embodiment of the application, the common interface component can be an optical-electrical composite interface component, when the ODN equipment is used, an optical cable part in the optical-electrical composite cable is connected with the common optical interface component, and a cable part in the optical-electrical composite cable is connected with the common electrical interface component and supplies power to the detection component through the common electrical interface component.
In a possible implementation manner, the detection component is a detection interface component, and the detection component is configured to interface with a network detection device, so that the network detection device indicates a state anomaly when detecting that the optical power of the optical signal input through the detection component is smaller than a target optical power threshold.
According to the scheme shown in the embodiment of the application, when the detection component is the detection interface component, the detection component needs to cooperate with the network detection equipment to indicate the network state. When the network detection device is used, the network detection device is plugged into the detection interface component, the detection interface component transmits the optical signal input by the detection optical splitter to the network detection device, and the network detection device can indicate the network state according to the optical power of the input optical signal.
In one possible implementation, the common interface component includes a common optical interface sub-component and a common electrical interface sub-component, and the detection component includes a detection optical interface sub-component and a detection electrical interface sub-component. The common electrical interface subassembly is configured to connect with an external power source. The public electrical interface sub-component is electrically connected with the detection electrical interface sub-component.
According to the scheme shown in the embodiment of the application, the detection component can be an optical-electrical composite interface component, when the ODN device is used, the optical-electrical composite cable is in butt joint, optical fibers in the optical-electrical composite cable are connected with the public optical interface sub-component, cables in the optical-electrical composite cable are connected with the public electrical interface sub-component, electric energy is transmitted to the detection electrical interface sub-component through the public electrical interface sub-component, the detection electrical interface sub-component can supply power for the network detection device, and therefore the network detection device does not need to be equipped with an extra power source.
In one possible implementation, a ratio of an optical power of the optical signal input to the detection splitter to an optical power of the optical signal output by the detection splitter to the detection component is greater than 10: 1.
According to the scheme shown in the embodiment of the application, the detection optical splitter can be prevented from being introduced to influence the normal transmission of data through the design.
In a second aspect, a fiber optic splice closure is provided that includes a first interface component, a second interface component, and a second status detection assembly. The first interface component is configured to interface with a first optical fiber to transmit optical signals transmitted by the first optical fiber to the second interface component. The second interface component is configured to interface with a second optical fiber to transmit an optical signal to the second optical fiber. The second state detection component is configured to drop a portion of the optical signal from the optical path between the first interface component and the second interface component for state detection.
The first interface component is configured to be butted with the first optical fiber, a socket for butting the first optical fiber is externally provided, and an optical signal transmitted by the first optical fiber can be introduced into the optical fiber joint box. The first interface component may also be referred to as a first terminal component, a first socket component, etc.
The second interface component is configured to be butted with the second optical fiber, provides a socket for butting the second optical fiber externally and can output the optical signal inside the optical fiber joint box externally. The second interface part may also be referred to as a second terminal part, a second socket part, etc.
The second state detecting element is an element introduced for state detection, and can separate a part of the optical signal for state detection from the transmission optical path between the first interface member and the second interface member. The network status can be indicated based on the magnitude of the optical power of the detected optical signal.
In the optical fiber splice closure according to the embodiment of the present application, a second state detection component is additionally disposed in the optical fiber splice closure according to the embodiment of the present application, and the second state detection component is configured to branch off a part of optical signals from a transmission optical path between the first interface component and the second interface component for state detection, so that the second state detection component can detect the first interface component and a network state before the first interface component.
In one possible implementation, the second state detection component includes a third detection splitter and a third detection component. The uplink optical interface of the third detection optical splitter is connected with the first interface component, the third detection optical splitter is provided with a fifth downlink optical interface and a sixth downlink optical interface, the fifth downlink optical interface is connected with the second interface component, and the sixth downlink optical interface is connected with the third detection component. The third detection component is configured to indicate a network status based on an optical power of the input optical signal.
In the embodiment of the present application, the uplink optical interface of the third detection optical splitter is connected to the first interface component, the fifth downlink optical interface is connected to the second interface component, and the sixth downlink optical interface is connected to the third detection component, which all refer to optical path connection, for example, connection through optical devices such as optical fibers.
The third detection optical splitter is an optical splitter introduced for state detection, and includes an uplink optical interface, a fifth downlink optical interface, and a sixth downlink optical interface. The uplink optical interface of the third detection optical splitter is connected with the first interface component, and can divide the optical signal output by the first interface component into two optical signals and output the two optical signals. An optical signal output by a fifth downlink optical interface of the third detection optical splitter is used for downlink data transmission, and an optical signal output by a sixth downlink optical interface is transmitted to the third detection component.
The third detection component is used for indicating the network state, and when the third detection component indicates that the state is abnormal, the failure of the optical path before the third detection component is explained.
In the solution shown in the embodiment of the present application, the second state detection component provided in the embodiment of the present application includes a third detection splitter and a third detection component. An optical signal output by a fifth downlink optical interface of the third detection optical splitter is transmitted to the second interface component for normal transmission of service data, and an optical signal output by a sixth downlink optical interface of the third detection optical splitter is transmitted to the third detection component, so that the third detection component can indicate a network state according to the magnitude of optical power of an input optical signal.
In a possible implementation manner, the third detecting component is a status indicating component, and the third detecting component is configured to indicate that the status is abnormal when the optical power of the input optical signal is smaller than the target optical power threshold.
The scheme shown in the embodiment of the present application is not limited with respect to the manner in which the third detection component indicates the abnormal state, and for example, the third detection component includes one or more of a buzzer, an indicator light, and a display screen, and can indicate the abnormal state through a sound signal, an optical signal, and a displayed image or a text signal.
For example, when the third detecting means includes an indicator light, the third detecting means may be configured to emit light of a first color when the optical power of the input optical signal is less than a target optical power threshold, and emit light of a second color when the optical power of the input optical signal is greater than the target optical power threshold, the first color and the second color being different, and the first color being used to indicate a status abnormality. For example, the first color may be red, and the second color may be green, but is not limited thereto.
In a possible implementation manner, the third detection component is a detection interface component, and the third detection component is configured to interface with a network detection device, so that the network detection device indicates a state anomaly when detecting that the optical power of the optical signal input through the detection interface component is smaller than a target optical power threshold.
In the solution shown in the embodiment of the present application, the third detection component may be a detection interface component, and cooperates with the network detection device to indicate the network state. When the network detection device is used, the network detection device is in butt joint with the third detection component, and the network detection device can indicate the state according to the magnitude of the optical power of the optical signal output by the third detection component.
In one possible implementation manner, a ratio of optical power of the optical signal input to the third detection splitter to optical power of the optical signal output by the third detection splitter to the third detection component is greater than 10: 1.
According to the scheme shown in the embodiment of the application, through the design, the third detection optical splitter can be prevented from being introduced to influence the normal transmission of data.
In a third aspect, there is provided a network test device comprising a connector component for interfacing with an ODN device comprising a test interface component as described in any one of the first aspects, a fibre optic splice closure comprising a test interface component as described in any one of the second aspects, and a status indicator component. The joint member is connected to the status indicating member. The status indication component is configured to indicate a status anomaly when the optical power of the input optical signal is less than a target optical power threshold.
The joint member and the status indication member in the embodiments of the present application are connected to each other by an optical path, for example, by an optical device such as an optical fiber.
The connector component is used for butting the detection interface component in the ODN equipment and/or the optical fiber splice closure, providing a connector for butting the detection interface component externally, and connecting the connector internally with the status indication component. The connector member may be referred to as a terminal member, a plug member, or the like, and may be a simple optical connector member or an optoelectric composite connector member.
The status indicating component is used for indicating the network status, is driven by the optical signal output by the connector component, and explains the detected port fault when the status indicating component indicates the abnormal status.
According to the scheme shown in the embodiment of the application, the network detection device provided by the embodiment of the application comprises a connector part and a state indicating part, wherein the connector part can be used for butting the detection interface parts in the ODN device and the optical fiber joint box and outputting the optical signal output by the ODN device or the optical fiber joint box to the state indicating part, so that the state indicating part can indicate the network state according to the magnitude of the optical power of the input optical signal.
In a fourth aspect, there is provided an optical distribution network comprising a main optical network ONT terminal, an ODN device, a plurality of fibre optic closures and a plurality of edge ONT terminals, the ODN device being an ODN device according to any one of the first aspects and/or the fibre optic closures being fibre optic closures according to any one of the second aspects. The primary ONT terminal is connected with a common interface component of the ODN device, a plurality of branch interface components of the ODN device are respectively connected with first interface components of the plurality of optical fiber splice boxes, and a second interface component of each optical fiber splice box is connected with one edge ONT terminal.
The technical scheme provided by the embodiment of the application has the following beneficial effects:
the embodiment of the application provides an ODN device, and the ODN device is additionally provided with a state detection component, and the state detection component can be used for separating a small part of optical signals from transmission optical paths inside the ODN device and an optical fiber connector box and is specially used for state detection, so that the state detection component can indicate the network state according to the state detection result of the optical signals, and the separated small part of light can not influence normal optical signal transmission. When the ODN equipment and the optical fiber connector box provided by the embodiment of the application are applied to the optical distribution network, a user can determine the fault occurrence position and the fault occurrence reason of the optical distribution network according to the network state indicated by the state detection components in the ODN equipment and the optical fiber connector box, so that the user does not need professional knowledge, and the network experience of the user can be effectively improved.
Drawings
Fig. 1 is a schematic diagram of an optical distribution network provided in an embodiment of the present application;
fig. 2 is a schematic diagram of an ODN apparatus provided in an embodiment of the present application;
fig. 3 is a schematic diagram of an ODN apparatus provided in an embodiment of the present application;
FIG. 4 is a schematic external view of an ODN apparatus according to an embodiment of the present disclosure;
fig. 5 is a schematic diagram of an ODN apparatus provided in an embodiment of the present application;
fig. 6 is a schematic diagram of an ODN apparatus provided in an embodiment of the present application;
fig. 7 is a schematic diagram of an ODN apparatus provided in an embodiment of the present application;
fig. 8 is a schematic diagram of an ODN apparatus provided in an embodiment of the present application;
fig. 9 is a schematic view of an optical fiber splice closure provided in accordance with an embodiment of the present application;
fig. 10 is a schematic diagram of a network detection device according to an embodiment of the present application.
Description of the figures
11. A common interface component, 111, a common optical interface sub-component, 112, a common electrical interface sub-component, 12, a main splitter, 13, a branch interface component, 14, a status detection component, 141, a detection splitter, 141a, a first detection splitter, 1411, a first downstream optical interface, 1412, a second downstream optical interface, 141b, a second detection splitter, 1413, a third downstream optical interface, 1414, a fourth downstream optical interface, 142, a detection component, 142a, a first detection component, 142b, a second detection component, 1421, a detection optical interface sub-component, 1422, a detection electrical interface sub-component;
21. a first interface component, 22, a second interface component, 23, a second state detection component, 231, a third detection optical splitter, 2311, a fifth downlink optical interface, 2312, a sixth downlink optical interface, 232, and a third detection component;
31. joint component, 32, status indication component.
Detailed Description
The embodiment of the application provides Optical Distribution Network (ODN) equipment, an optical fiber connector box, network detection equipment and an optical distribution network.
As shown in fig. 1, the optical distribution network includes a main Optical Network Terminal (ONT), an optical distribution network device (ODN device), a fiber splice closure, and an edge optical network terminal (edge ONT terminal). The primary ONT terminal introduces the operator network to the user, a first interface of the primary ONT terminal is connected with the operator network, and a second interface of the primary ONT terminal is connected with the common interface part of the ODN equipment. The ODN device can divide one optical signal into multiple paths, and has a common interface component and multiple branch interface components, where the multiple branch interface components of the ODN device can be connected to one ends of multiple optical fibers respectively. The other ends of the optical fibers enter each room and are connected with the first interfaces of the optical fiber joint boxes in the rooms, and the second interfaces of the optical fiber joint boxes are connected with the edge ONT terminals. The ONT terminal at the edge of each room only covers the room as a network hotspot, so that the power of network signals is ensured, the signals of the rest rooms are not interfered, and the network experience of a user can be greatly improved.
In the operation process of the optical distribution network, there are four most possible fault occurrence points and fault reasons, which are respectively:
(1) the connection part of the main ONT terminal and the ODN equipment is dirty, bent and the like;
(2) the connection part of the ODN equipment and the optical fiber connector box is dirty, bent and the like, and the loss of an optical fiber link between the ODN equipment and the optical fiber connector box is overlarge;
(3) the connection part of the optical fiber connector box and the edge ONT terminal is dirty, bent and the like;
(4) the working state of the edge ONT terminal is abnormal.
When the optical distribution network fails, users often lack professional knowledge, so that the users generally have difficulty in determining the cause and the position of the failure, the network cannot be maintained in time, and the network use of the users is affected.
In view of this, the embodiment of the present application provides an ODN device, an optical fiber splice closure, a network detection device, and an optical distribution network, which can solve the above technical problems, so that an ordinary user who does not have professional network maintenance knowledge can locate a fault conveniently, quickly, and easily, solve the fault, greatly reduce the frequency of home-entry maintenance of an operator, and improve user network experience.
An ODN apparatus according to an embodiment of the present application is provided, and as shown in fig. 2, the ODN apparatus includes a plurality of common interface components 11, a main splitter 12, a plurality of branch interface components 13, and a status detection component 14. The common interface component 11 is configured to interface with a trunk optical fiber and transmit an optical signal transmitted by the trunk optical fiber to the main splitter 12. The main optical splitter 12 is configured to split an input optical signal into a plurality of optical signals and transmit the optical signals to a plurality of branch interface sections 13, respectively. The branch interface component 13 is configured to interface with a branch optical fiber and transmit an optical signal to the branch optical fiber. The state detection component 14 is configured to drop a portion of the optical signal from the transmission optical path between the common interface section 11 and the branch interface section 13 for state detection.
The common interface component 11 is configured to interface with the trunk optical fiber, and provides a socket for interfacing with the trunk optical fiber, so as to be able to introduce an optical signal transmitted by the trunk optical fiber to the main optical splitter 12. The common interface part 11 may also be referred to as a common terminal part, a common socket part, etc. The common interface component 11 may be a simple optical interface component, or may be an optoelectrical composite interface component. The common interface component 11 is a bidirectional interface, and can transmit optical signals in two directions.
The main optical splitter 12 is the most basic functional component of the ODN device, and includes an uplink optical interface and a plurality of downlink optical interfaces, and can split the input 1-channel optical signal into multiple channels of optical signals and output the optical signals, where the optical powers of the multiple channels of optical signals may be the same. For example, the main splitter 12 may be a 1:4 splitter, and can split an input 1-path optical signal into 4-path optical signals and output the optical signals.
The branch interface component 13 is configured to interface with a branch optical fiber, providing externally a socket interfacing with the branch optical fiber, and being capable of transmitting optical signals inside the ODN device to the branch optical fiber. The branch interface part 13 may also be referred to as a branch terminal part, a branch socket part, etc. The branch interface 13 may be a simple optical interface or an optoelectrical composite interface. The branch interface unit 13 is a bidirectional interface and can bidirectionally transmit optical signals.
The state detection unit 14 is a unit introduced for state detection, and can drop a part of an optical signal for state detection from a transmission optical path between the common interface section 11 and the branch interface section 13.
The upstream optical interface of the main optical splitter 12 may receive an optical signal from the common interface section 11, or may transmit an optical signal to the common interface section 11. The downstream optical interface of the main optical splitter 12 may transmit an optical signal to the branch interface section 13, or may receive an optical signal from the branch interface section 13. That is, the upstream optical interface and the downstream optical interface of the main optical splitter 12 are both bidirectional interfaces, and can transmit optical signals in both directions.
The ODN device provided in the embodiment of the present application is additionally provided with the state detection component 14, and the state detection component 14 can branch a part of optical signals from a transmission optical path between the common interface component 11 and the branch interface component 13 for state detection, so that the state detection component 14 can directly or indirectly indicate a network state according to the magnitude of optical power of the branched part of optical signals.
The implementation manner of the state detection component 14 is not limited in the embodiments of the present application.
In one possible implementation, the state detection assembly 14 includes at least one detection splitter 141 and at least one detection component 142. The detection optical splitter 141 is configured to split a part of the optical signal from the transmission optical path between the common interface section 11 and the branch interface section 13 and transmit the split optical signal to the detection section 142. The detection component 142 is configured to indicate a network status based on the optical power of the input optical signal.
The detection splitter 141 includes an uplink optical interface and two downlink optical interfaces. The upstream optical interface of the detection optical splitter 141 is connected to any position of the transmission optical path between the common interface component 11 and the branch interface component 13, an optical signal output by one downstream optical interface of the detection optical splitter 141 is output to the transmission optical path for normal data transmission, and an optical signal output by the other downstream optical interface is output to the detection component 142. In order to prevent the detection splitter 141 from affecting the normal transmission of data, the optical power of the optical signal input to the detection part 142 by the detection splitter 141 should not be too large. Illustratively, the ratio of the optical power of the optical signal input to the detection splitter 141 to the optical power of the optical signal output by the detection splitter 141 to the detection component 142 is greater than 10: 1. That is, the ratio of the optical powers of the optical signals output by the two downstream optical interfaces of the detection optical splitter 141 is 9:1 (for example, may be 99:1), and the optical power of the optical signal output to the detection component 142 is smaller.
The detection beam splitter 141 can split light from the transmission optical path between the common interface section 11 and the branch interface section 13. For example, the light may be split from the transmission optical path between the downstream optical interface of the main optical splitter 12 and the branch interface component 13, or may be split from the transmission optical path between the common interface component 11 and the upstream optical interface of the main optical splitter 12.
It should be noted that the uplink optical interface and the downlink optical interface of the detection optical splitter 141 are both bidirectional interfaces, and can transmit optical signals bidirectionally.
In the following, two implementations are described:
(1) in one possible implementation, as shown in fig. 2, the at least one detection splitter 141 includes at least one first detection splitter 141a, and the at least one detection component 142 includes at least one first detection component 142 a. The upstream optical interface of the main optical splitter 12 is connected to the common interface component 11, the main optical splitter 12 includes a plurality of downstream optical interfaces, at least one downstream optical interface of the main optical splitter 12 is connected to the upstream optical interface of the first detection optical splitter 141a, and each of the remaining downstream optical interfaces of the main optical splitter 12 is connected to one of the branch interface components 13. Each first detection splitter 141a includes a first downstream optical interface 1411 and a second downstream optical interface 1412, each first downstream optical interface 1411 is connected to one of the branch interface components 13, and each second downstream optical interface 1412 is connected to one of the first detection components 142 a.
The first detection component 142a can indicate a state of an optical path before the first detection component 142a, for example, can indicate a state of a target downstream optical interface of the main splitter 12 in the ODN device, wherein the target downstream optical interface is connected with a target first detection splitter, and the target first detection splitter is connected with the first detection component 142 a. As another example, the first detection component 142a may also be capable of indicating the status of where the primary ONT terminal is connected to the ODN device.
When the first detection part 142a of the ODN device indicates the abnormal state, the user may first consider whether the connection between the primary ONT terminal and the ODN device is dirty or bent, and self-clean the connection between the primary ONT terminal and the ODN device. After the cleaning is completed, if the first detection part 142a no longer indicates the abnormal state, it indicates that the fault is indeed occurred at the connection between the primary ONT terminal and the ODN device.
If the first detection member 142a still indicates an abnormal condition after cleaning, it indicates that the primary splitter 12 is likely to be malfunctioning, and the user can replace the ODN device.
In order to more accurately indicate the status of each downstream optical interface of the main optical splitter 12 (which can also be understood as indicating the network status of each branch interface component 13), as shown in fig. 3, the first detection optical splitter 141a and the first detection component 142a are multiple and are in one-to-one correspondence. Each downstream optical interface of the main splitter 12 is connected to an upstream optical interface of a first detection splitter 141 a.
With this design, the first detection part 142a is enabled to indicate the state of each branch interface part 13 more accurately. For example, if the number of the branch interface components 13 and the number of the first detection components 142a are four, when only one first detection component 142a indicates that the status is abnormal, it indicates that the connection between the primary ONT terminal and the ODN device has not failed, and it is likely that the downstream optical interface of the primary optical splitter 12 has failed (of course, it may also be that the corresponding first detection optical splitter 141a has failed). When all the first detection parts 142a indicate the abnormal state, it indicates that there is a high possibility that the connection between the primary ONT terminal and the ODN device has a failure.
In order to make the user know the state of each branch interface part 13 of the ODN device very intuitively, as shown in fig. 4, the first detection part 142a and the branch interface part 13 are located on the same wall of the casing of the ODN device, and the positions of the first detection part 142a and the branch interface part 13 correspond to each other. Thus, when a certain first detection unit 142a indicates an abnormal state, the user can easily know that the branch interface unit 13 corresponding to the first detection unit 142a is faulty.
In addition to the scheme of setting the positions of the first detection parts 142a and the branch interface parts 13 in one-to-one correspondence, other schemes may be adopted so that the user can definitely determine the branch interface part 13 corresponding to the first detection part 142 a. For example, the plurality of first detecting parts 142a and the plurality of branch interface parts 13 may be numbered, and the first detecting parts 142a and the branch interface parts 13 connected to the same first detecting splitter 141a may be numbered correspondingly (for example, the numbers are the same). In this way, even when the user observes that the first detection unit 142a of a certain number indicates a state abnormality, it is possible to very conveniently specify the faulty branch interface unit 13.
(2) In another possible implementation, as shown in fig. 5, the at least one detection splitter 141 includes a second detection splitter 141b, and the at least one detection component 142 includes a second detection component 142 b. The upstream optical interface of the second detection optical splitter 141b is connected to the common interface component 11, the second detection optical splitter 141b includes a third downstream optical interface 1413 and a fourth downstream optical interface 1414, the third downstream optical interface 1413 is connected to the upstream optical interface of the main optical splitter 12, and the fourth downstream optical interface 1414 is connected to the second detection component 142 b. Each downstream optical interface of the main splitter 12 is connected to a branch interface block 13.
The second detection component 142b may be capable of indicating the state of the optical path before the second detection component 142b, e.g. may indicate the state where the primary ONT terminal is connected to the ODN device.
When the second detection part 142b of the ODN device indicates the abnormal state, the user may first consider whether the connection between the primary ONT terminal and the ODN device is dirty or bent, and self-clean the connection between the primary ONT terminal and the ODN device. After the cleaning is completed, if the first detection part 142a no longer indicates the abnormal state, it indicates that the fault is indeed occurred at the connection between the primary ONT terminal and the ODN device.
If the second detection component 142b still indicates an abnormal condition after cleaning, it indicates that the primary splitter 12 is likely to be malfunctioning, and the user can replace the ODN device.
The first detecting beam splitter 141a, the first detecting member 142b, the second detecting beam splitter 142a, and the second detecting beam splitter 142b may be used simultaneously. In this case, the ODN device can indicate its own network status more accurately.
Illustratively, as shown in fig. 6, the common interface component 11 is connected to the upstream optical interface of the second detection splitter 141 b. The third downstream optical interface 1413 of the second detection optical splitter 141b is connected to the upstream optical interface of the main optical splitter 12, and each downstream optical interface of the main optical splitter 12 is connected to the upstream optical interface of one first detection optical splitter 141 a. The first downstream optical interface 1411 of each first detection splitter 141a is connected to one of the branch interface components 13, and the second downstream optical interface 1412 of each first detection splitter 141a is connected to one of the first detection components 142 a. The fourth downstream optical interface 1414 of the second detection splitter 141b is connected to the second detection component 142 b.
In this case, when the second detecting part 142b and the plurality of first detecting parts 142a indicate normal states during the use of the ODN apparatus, it is indicated that the ODN apparatus is operating normally.
When the second detecting part 142b and the plurality of second detecting parts 142a each indicate a state abnormality, it may be determined that a problem occurs in the network before the ODN device. For example, a failure occurs at the connection of the primary ONT terminal with the ODN device.
When the second detecting part 142b indicates that the state is normal and the plurality of second detecting parts 142a indicate that the state is abnormal, it may be determined that the optical signal inputted to the inside of the ODN apparatus is normal, and it is likely that the main beam splitter 12 is out of order.
When the second detection part 142b indicates that the state is normal, and the plurality of second detection parts 142a partially indicate that the state is abnormal, and partially indicate that the state is normal, it may be determined that the main splitter 12 is malfunctioning.
The above failure causes and failure locations are only possible failure causes and locations and do not represent the only ones.
The detecting component 142 (including the first detecting component 142a and the second detecting component 142b) may directly indicate the network status by itself or cooperate with the network detecting device to indicate the network status when indicating the network status. These two cases are explained below:
(1) in one possible implementation, the detecting component 142 is a status indicating component, and the detecting component 142 is configured to indicate that the status is abnormal when the optical power of the input optical signal is less than the target optical power threshold.
When the detection part 142 is a status indication part, the status indication part can directly indicate the network status according to the optical power of the input optical signal. The manner in which the detecting component 142 indicates the network status is not limited in this embodiment of the application. Illustratively, the detecting part 142 includes one or more of an indicator light, a buzzer and a display screen, and the detecting part 142 may indicate the network status through a sound signal, a light signal or a displayed image signal or a text signal.
When the detection part 142 includes a buzzer, the detection part 142 may be configured to emit a sound when the optical power of the input optical signal is less than a target optical power threshold, and not emit a sound when the optical power of the input optical signal is greater than the target optical power threshold.
Where the detection component 142 includes an indicator light, the detection component 142 may be configured to emit light of a first color when the optical power of the input optical signal is less than a target optical power threshold, and to emit light of a second color when the optical power of the input optical signal is greater than the target optical power threshold, the first color and the second color being different, and the first color being used to indicate a condition anomaly.
For example, the first color may be red, and the second color may be green, but is not limited thereto. In practical applications, the first color and the second color may also be combined with other colors. In addition, in addition to using different colors to indicate the status normality and the status abnormality, the detection component 142 may also use other ways to indicate different statuses, which are described in the following with several examples:
when the indication state is normal, the detection part 142 does not emit light, and when the indication state is abnormal, the detection part 142 emits light;
when the indication state is normal, the detection part 142 emits light, and when the indication state is abnormal, the detection part 142 does not emit light;
when the indication state is normal, the detection component 142 emits continuous light, and when the indication state is abnormal, the detection component 142 flashes and emits light;
when the indication state is normal, the detection unit 142 blinks and emits light, and when the indication state is abnormal, the detection unit 142 emits continuous light.
Where the detection component 142 includes a display screen, the detection component 142 may be configured to display information indicating a status anomaly, such as one or more of textual information or image information, when the optical power of the input optical signal is less than a target optical power threshold. In addition, the detection part 142 may also display the optical power, in which case the detection part 142 may also be configured to calculate the corresponding optical power according to the input optical signal and display the calculated optical power. The optical power displayed by the detection component 142 may be the actual optical power input to the detection component 142, or may be the optical power input to the detection beam splitter 141. In the second case, after calculating the optical power according to the input optical signal, the detecting component 142 needs to multiply by the corresponding multiple to obtain the final optical power for display. When the detecting part 142 is the second detecting part 142b, for the second case, the optical power displayed by the second detecting part 142b is the total optical power inputted to the inside of the ODN device.
The embodiment of the present application is not limited to the implementation that the detecting component 142 indicates different states according to the magnitude of the optical power of the optical signal.
In a possible implementation manner, the detecting unit 142 includes a photoelectric conversion device and an alarm device, an input end of the photoelectric conversion device is connected to the second downlink optical interface 1412 (or the fourth downlink optical interface 1414) of the detecting splitter 141, an output end of the photoelectric conversion device is connected to the alarm device, and the photoelectric conversion device is configured to convert an optical signal into an electrical signal. The alert device is configured to indicate a state abnormality when the electric power of the input electric signal is less than a target electric power threshold.
The optical signal output from the detection beam splitter 141 is converted into an electrical signal by the photoelectric conversion device, and then input to the alarm device. The alarm device indicates the state according to the magnitude of the input electric signal.
The embodiments of the present application are not limited to specific configurations of photoelectric conversion devices.
In one possible implementation, the photoelectric conversion device includes a PIN photodetection circuit and an amplification circuit. The input end of the PIN photoelectric detection circuit is connected to the second downlink optical interface 1412 (or the fourth downlink optical interface 1414) of the detection splitter 141, the output end of the PIN photoelectric detection circuit is connected to the input end of the amplification circuit, and the PIN photoelectric detection circuit is configured to convert an optical signal into an electrical signal. The output end of the amplifying circuit is connected with the alarm device and used for amplifying the electric signal.
The optical signal output by the detection optical splitter 141 is converted into an electrical signal by the PIN photoelectric detection circuit, and then input to the amplification circuit, and the electrical signal is amplified by the amplification circuit and then input to the alarm device.
In another possible implementation manner, the photoelectric conversion device may also be a Complementary Metal Oxide Semiconductor (CMOS) device or a charge-coupled device (CCD).
The detection component 142 may be an active component that requires power to complete the status indication. The power source of the detecting component 142 is not limited in the embodiments of the present application.
In one possible implementation, as shown in FIG. 7, the common interface component 11 includes a common optical interface sub-component 111 and a common electrical interface sub-component 112. The common electrical interface subassembly 112 is configured to connect with an external power source. The common electrical interface sub-assembly 112 is electrically connected to the sensing assembly 142. That is, the common interface component 11 is an optical electrical composite interface component, the ODN device is connected to the optical electrical composite cable when in use, the optical cable portion of the optical electrical composite cable is connected to the common optical interface sub-component 111, and the electrical cable portion of the optical electrical composite cable is connected to the common electrical interface sub-component 112, and supplies power to the detection component 142 through the common electrical interface sub-component 112.
Note that the dotted line connection in fig. 7 indicates electrical connection, and the solid line connection indicates optical connection. In addition, where the common interface component 11 includes a common optical interface subcomponent 111 and a common electrical interface subcomponent 112, the generic branch interface component 13 also includes an output optical interface subcomponent and an output electrical interface subcomponent (not shown in FIG. 7).
In another possible implementation, the detecting unit 142 may also have a battery, and the battery supplies power to the power consuming elements inside the detecting unit 142.
In another possible implementation manner, the detection component 142 may also have a separate power supply port and be separately powered by an external power supply.
(2) In another possible implementation, the detection component 142 is a detection interface component, and the detection component 142 is configured to interface with the network detection device, so that the network detection device indicates a status anomaly when detecting that the optical power of the optical signal input through the detection component 142 is less than the target optical power threshold.
When the detecting component 142 is a detecting interface component, the detecting component 142 needs to cooperate with a network detecting device to indicate the network status. When the network detection device is used, the network detection device is plugged into the detection interface component, the detection interface component transmits the optical signal input by the detection optical splitter 141 to the network detection device, and the network detection device can indicate the network state according to the magnitude of the optical power of the input optical signal.
The detection component 142 may be a simple optical interface component, in which case the network detection device needs its own power supply, or may be connected to an external power supply through a dedicated power port.
The detection component 142 may also be an opto-electronic composite interface, in which case, as shown in fig. 8, the common interface component 11 includes a common optical interface sub-component 111 and a common electrical interface sub-component 112, and the detection component 142 includes a detection optical interface sub-component 1421 and a detection electrical interface sub-component 1422. The common electrical interface subassembly 112 is configured to connect with an external power source. The detection electrical interface subassembly 1422 is electrically connected to the common electrical interface subassembly 112.
When the ODN device is used, the optical composite cable is butt-jointed, an optical fiber in the optical composite cable is connected to the common optical interface sub-component 111, a cable in the optical composite cable is connected to the common electrical interface sub-component 112, and electric energy is transmitted to the detection electrical interface sub-component 1422 through the common electrical interface sub-component 112, so that the detection electrical interface sub-component 1422 can supply power to the network detection device, and the network detection device does not need to be equipped with an additional power supply.
Note that the dotted line connection in fig. 8 indicates electrical connection, and the solid line connection indicates optical connection. In addition, where the common interface component 11 includes a common optical interface subcomponent 111 and a common electrical interface subcomponent 112, the generic branch interface component 13 also includes an output optical interface subcomponent and an output electrical interface subcomponent (not shown in FIG. 8).
Next, the ODN device provided in the embodiments of the present application is described with an example.
As shown in fig. 6, the common interface section 11 is connected to the upstream optical interface of the second detection splitter 141 b. The third downstream optical interface 1413 of the second detection optical splitter 141b is connected to the upstream optical interface of the main optical splitter 12, and each downstream optical interface of the main optical splitter 12 is connected to the upstream optical interface of one first detection optical splitter 141 a. The first downstream optical interface 1411 of each first detection splitter 141a is connected to one of the branch interface components 13, and the second downstream optical interface 1412 of each first detection splitter 141a is connected to one of the first detection components 142 a. The fourth downstream optical interface 1414 of the second detection splitter 141b is connected to the second detection component 142 b.
Illustratively, the first detecting component 142a includes an indicator light configured to emit light of a first color (e.g., red light) when the optical power of the input optical signal is less than the target optical power threshold, and emit light of a second color (e.g., green light) when the optical power of the input optical signal is greater than the target optical power threshold.
The second detection part 142b includes a display screen configured to calculate a corresponding optical power from an input optical signal and display the calculated optical power.
Fig. 4 is a schematic diagram of an ODN device according to an embodiment of the present invention.
When the optical power displayed by the second detecting member 142b is normal and the plurality of first detecting members 142a emit green light during the use of the ODN device, it indicates that the ODN device is operating normally.
When the optical power displayed by the second detecting part 142b is too low and the plurality of second detecting parts 142a all emit red light, it may be determined that a problem occurs in the network before the ODN device. For example, a failure occurs at the connection of the primary ONT terminal with the ODN device.
When the optical power displayed by the second detecting part 142b is normal and the plurality of second detecting parts 142a emit red light, it can be determined that the optical signal inputted into the ODN device is normal, and it is likely that the main splitter 12 is out of order.
When the light power displayed by the second detecting member 142b is normal, and the plurality of second detecting members 142a partially emit red light and partially emit green light, it can be determined that the main beam splitter 12 is malfunctioning.
It should be noted that the above failure causes and failure locations are only possible failure causes and locations, and do not mean the only ones.
The embodiment of the present application further provides an optical fiber splice closure, as shown in fig. 9, the optical fiber splice closure includes a first interface component 21, a second interface component 22, and a second status detection assembly 23. The first interface component 21 is configured to interface with a first optical fiber to transmit optical signals transmitted by the first optical fiber to the second interface component 22. The second interface component 22 is configured to interface with a second optical fiber and transmit optical signals to the second optical fiber. The second state detecting element 23 is configured to drop a part of the optical signal from the transmission optical path between the first interface part 21 and the second interface part 22 for state detection.
The first interface part 21 is configured to interface with the first optical fiber, and provides a socket for interfacing with the first optical fiber, so that an optical signal transmitted by the first optical fiber can be introduced into the optical fiber splice closure. The first interface component 21 may also be referred to as a first terminal component, a first socket component, etc. The first interface 21 may be a simple optical interface or an optoelectrical composite interface. The first interface unit 21 is a bidirectional interface unit and can bidirectionally transmit optical signals.
The second interface member 22 is configured to interface with the second optical fiber, and provides a socket for interfacing with the second optical fiber, so as to output an optical signal from the inside of the optical fiber connector box. The second interface part 22 may also be referred to as a second terminal part, a second socket part, etc. The second interface 22 may be a simple optical interface or an optoelectrical composite interface. The second interface unit 22 is a bidirectional interface unit that can transmit optical signals bidirectionally.
It should be noted that the first optical fiber may be an optical fiber that interfaces with the ODN device and the second optical fiber may be an optical fiber that interfaces with the edge ONT terminal. In addition, due to the bidirectional propagation of the optical signal, the first interface section 21 is further configured to transmit the optical signal transmitted by the second interface section 22 to the first optical fiber, and the second interface section 22 is further configured to transmit the optical signal transmitted by the second optical fiber to the first interface section 21.
The second state detecting element 23 is an element introduced for state detection, and can separate a part of the optical signal for state detection from the transmission optical path between the first interface part 21 and the second interface part 22. The network status can be indicated based on the magnitude of the optical power of the detected optical signal.
The optical fiber splice closure provided in the embodiment of the present application is additionally provided with the second state detection component 23, and the second state detection component 23 is configured to branch a part of optical signals from a transmission optical path between the first interface component 21 and the second interface component 22 for state detection, so that the second state detection component 23 can detect the first interface component 21 and a previous network state of the first interface component 21.
The embodiment of the present application is not limited to the implementation manner of detecting the optical signal by the second state detecting element 23.
In one possible implementation, as shown in fig. 9, the second state detection assembly 23 includes a third detection splitter 231 and a third detection component 232. The uplink optical interface of the third detection optical splitter 231 is connected to the first interface component 21, the third detection optical splitter 231 has a fifth downlink optical interface 2311 and a sixth downlink optical interface 2312, the fifth downlink optical interface 2311 is connected to the second interface component 22, and the sixth downlink optical interface 2312 is connected to the third detection component 232. The third detection component 232 is configured to indicate a network status based on the optical power of the input optical signal.
The third detection optical splitter 231 is an optical splitter introduced for state detection, and includes an uplink optical interface, a fifth downlink optical interface 2311, and a sixth downlink optical interface 2312. The upstream optical interface of the third detection splitter 231 is connected to the first interface unit 21, and can split the optical signal output by the first interface unit 21 into two optical signals and output the two optical signals. The optical signal output by the fifth downstream optical interface 2311 of the third detection optical splitter 231 is used for downstream data transmission, and the optical signal output by the sixth downstream optical interface 2312 of the third detection optical splitter 231 is transmitted to the third detection component 232. In order to prevent the introduction of the third detection splitter 231 from affecting the normal transmission of data, the optical power of the optical signal dropped by the sixth downlink optical interface 2312 of the third detection splitter 231 should not be too large. Illustratively, the ratio of the optical power of the optical signal input to the third detection splitter 231 to the optical power of the optical signal output by the third detection splitter 231 to the third detection unit 232 is greater than 10: 1. That is, the ratio of the optical power of the optical signal output by the fifth downlink optical interface 2311 of the third detection optical splitter 231 to the optical power of the optical signal output by the sixth downlink optical interface 2312 is greater than 9:1, and may be 99:1, for example.
It should be noted that the uplink optical interface of the third detection optical splitter 231 and the fifth downlink optical interface 2311 are both bidirectional optical interfaces, and can transmit optical signals in two directions. The sixth downstream optical interface 2312 may be a bidirectional optical interface.
The third detecting means 232 is used for indicating the network status, and when the third detecting means 232 indicates the status is abnormal, it indicates that the optical path before the third detecting means 232 is failed.
The second state detection assembly 23 provided in the embodiment of the present application includes a third detection beam splitter 231 and a third detection component 232. The optical signal output by the fifth downlink optical interface 2311 of the third detection optical splitter 231 is transmitted to the second interface component 22 for normal transmission of service data, and the optical signal output by the sixth downlink optical interface 2312 of the third detection optical splitter 231 is transmitted to the third detection component 232, so that the third detection component 232 can indicate the network state according to the magnitude of the optical power of the input optical signal.
For example, when the connection point between the first optical fiber and the optical fiber splice closure is dirty or bent, the optical power of the optical signal input to the third detection member 232 may be reduced, and when the optical power is smaller than the target optical power threshold, the third detection member 232 indicates that the state is abnormal. When the user observes that the third detection part 232 indicates an abnormal state, the user can consider whether the connection between the first optical fiber and the optical fiber splice closure is in failure or not, and can clean the optical fiber splice closure by himself. When the cleaning is completed, if the optical power input to the third detection part 232 is increased to be greater than the target optical power threshold value, the third detection part 232 no longer indicates the abnormality of the state.
The third detecting component 232 may directly indicate the network status itself, or may be matched with a network detecting device, and the network detecting device indicates the network status. In the following, two possible implementations are described:
(1) in one possible implementation, the third detecting unit 232 is a status indicating unit, and the third detecting unit 232 is configured to indicate that the status is abnormal when the optical power of the input optical signal is less than the target optical power threshold.
The third detecting element 232 is not limited in the embodiment of the present application, for example, the third detecting element 232 includes one or more of a buzzer, an indicator light and a display screen, and can indicate the abnormal state through a sound signal, an optical signal and a displayed image or a text signal.
When the third detecting part 232 includes a buzzer, the third detecting part 232 may be configured to emit a sound when the optical power of the input optical signal is less than the target optical power threshold value, and not emit a sound when the optical power of the input optical signal is greater than the target optical power threshold value.
When the third detecting member 232 includes an indicator light, the third detecting member 232 may be configured to emit light of a first color when the optical power of the input optical signal is less than the target optical power threshold, and emit light of a second color when the optical power of the input optical signal is greater than the target optical power threshold, the first color and the second color being different, and the first color being used to indicate a state abnormality.
For example, the first color may be red, and the second color may be green, but is not limited thereto. In addition to using different colors to indicate normal status and abnormal status, the third detecting part 232 can also indicate different statuses in other manners. The following is illustrated with several examples:
when the indication state is normal, the third detection part 232 does not emit light, and when the indication state is abnormal, the third detection part 232 emits light;
when the indication state is normal, the third detection part 232 emits light, and when the indication state is abnormal, the third detection part 232 does not emit light;
when the indication state is normal, the third detection part 232 emits continuous light, and when the indication state is abnormal, the third detection part 232 flashes and emits light;
when the indication state is normal, the third detection unit 232 blinks and emits light, and when the indication state is abnormal, the third detection unit 232 emits continuous light.
When the third detecting part 232 includes a display screen, the third detecting part 232 may be configured to display information indicating a state abnormality, for example, one or more of text information or image information, when the optical power of the input optical signal is less than the target optical power threshold value. In addition, the third detecting part 232 may also display the optical power, and the third detecting part 232 may also be configured to calculate the corresponding optical power from the input optical signal and display the calculated optical power. The optical power displayed by the third detection component 232 may be the actual optical power input to the third detection component 232, or the optical power input to the third detection splitter 231, that is, the optical power input to the interior of the optical fiber splice closure.
The third detecting component 232 is not limited to indicate different states according to the magnitude of the optical power of the optical signal.
In a possible implementation manner, the third detecting unit 232 may include a photoelectric conversion device and an alarm device, an input end of the photoelectric conversion device is connected to the sixth downlink optical interface 2312 of the third detecting optical splitter 231, an output end of the photoelectric conversion device is connected to the alarm device, and the photoelectric conversion device is configured to convert an optical signal into an electrical signal. The alert device is configured to indicate a state abnormality when the electric power of the input electric signal is less than a target electric power threshold.
The optical signal output from the sixth downlink optical interface 2312 of the third detection splitter 231 is converted into an electrical signal by the photoelectric conversion device, and then input to the alarm device. The alarm device performs status indication according to the magnitude of electric power of the inputted electric signal.
The embodiments of the present application are not limited to specific configurations of photoelectric conversion devices.
In one possible implementation, the photoelectric conversion device includes a PIN photodetection circuit and an amplification circuit. The input end of the PIN photoelectric detection circuit is connected to the sixth downlink optical interface 2312 of the third detection splitter 231, the output end of the PIN photoelectric detection circuit is connected to the input end of the amplification circuit, and the PIN photoelectric detection circuit is used for converting an optical signal into an electrical signal. The output end of the amplifying circuit is connected with the alarm device and used for amplifying the electric signal. An optical signal output by the sixth downlink optical interface 2312 of the third detection optical splitter 231 is converted into an electrical signal by the PIN photoelectric detection circuit, and then is input to the amplification circuit, and the electrical signal is amplified by the amplification circuit and then is input to the alarm device. The warning device may be a buzzer, an indicator light, a display screen, or the like capable of outputting status information.
In another possible implementation manner, the photoelectric conversion device may also be a Complementary Metal Oxide Semiconductor (CMOS) device or a charge-coupled device (CCD).
The third detection component 232 may be an active component that requires power to complete the status indication. The power source of the third detecting member 232 is not limited in the embodiments of the present application.
In one possible implementation, the first interface component 21 includes a first optical interface sub-component and a first electrical interface sub-component. The first optical interface sub-assembly is connected to the upstream optical interface of the third detection splitter 231, and the first electrical interface sub-assembly is connected to the third detection assembly 232. That is, the first interface component 21 is an optical-electrical composite interface component, the optical fiber splice closure is connected to the optical-electrical composite cable when in use, the optical cable portion of the optical-electrical composite cable is connected to the first optical interface sub-component, and the cable portion of the optical-electrical composite cable is connected to the first electrical interface sub-component, and supplies power to the third detection component 232 through the first electrical interface sub-component. In addition, when the first interface component 21 includes the first optical interface sub-component and the first electrical interface sub-component, the second interface component 22 also includes the second optical interface sub-component and the second electrical interface sub-component, and the fifth downstream optical interface 2311 of the third detection optical splitter 231 is connected with the second optical interface sub-component, and the first electrical interface sub-component is connected with the second electrical interface sub-component.
In another possible implementation, the third detecting unit 232 may also have a battery, and the battery supplies power to internal power consuming elements.
In another possible implementation manner, the third detecting element 232 may also have a separate power supply port and be separately powered by an external power source.
(2) The third detection component 232 is a detection interface component, and the third detection component 232 is configured to interface with the network detection device, so that the network detection device indicates a status anomaly when detecting that the optical power of the optical signal input through the detection interface component is less than the target optical power threshold.
When the third detecting component 232 is a detecting interface component, the third detecting component 232 needs to be used in cooperation with the network detecting device to indicate the network status, and when the network detecting device is used, the network detecting device can indicate the status according to the magnitude of the optical power of the optical signal output by the third detecting component 232 by docking the network detecting device with the third detecting component 232.
The third detecting element 232 may be a simple optical interface element or an optical-electrical composite interface element. Where the third sensing component 232 is an opto-electronic composite interface component, the first interface component 21 includes a first optical interface sub-component and a first electrical interface sub-component, and the third sensing component 232 includes a third sensing optical interface sub-component and a third sensing electrical interface sub-component. The first optical interface sub-assembly is connected to the upstream optical interface of the third detection splitter 231 and the first electrical interface sub-assembly is connected to the third detection electrical interface sub-assembly. The third detection optical interface sub-assembly is connected to the sixth downstream optical interface 2312 of the third detection optical splitter 231.
By making the third detection component 232 an optoelectrical composite interface component, the second detection electrical interface component in the third detection component 232 can supply power to the network detection device, so that the network detection device does not need to be equipped with an additional power supply.
Embodiments of the present application also provide a network test device, as shown in fig. 10, which includes a connector part 31 and a status indication part 32, wherein the connector part 31 is used for being docked with an ODN device or an optical fiber splice closure, and the docked ODN device and the optical fiber splice closure have a test interface part. The joint member 31 is connected to the status indicating member 32. The status indication component 32 is configured to indicate a status anomaly when the optical power of the input optical signal is less than the target optical power threshold.
The connector part 31 is used for butting the detection interface part in the ODN equipment and/or the optical fiber splice closure, providing a connector for butting the detection interface part externally, and connecting the connector with the status indication part 32 internally. The connector member 31 may also be referred to as a terminal member, a plug member, or the like, and the connector member 31 may be a simple optical connector member or an optoelectric composite connector member.
The status indicator 32 is used to indicate the network status, is driven by the optical signal output from the connector unit 31, and indicates a detected port failure when the status indicator 32 indicates a status abnormality.
The network detection device provided by the embodiment of the application comprises a connector part 31 and a status indication part 32, wherein the connector part 31 can be used for butting detection interface parts in an ODN device and an optical fiber joint box and outputting an optical signal output by the ODN device or the optical fiber joint box to the status indication part 32, so that the status indication part 32 can indicate the network status according to the magnitude of the optical power of the input optical signal.
For example, when the home optical distribution network is abnormal, the user may hold the network detection device in hand to dock with the ODN device, and if the network detection device indicates that the state is abnormal, the user may determine that the connection between the primary ONT terminal and the ODN device is dirty or bent, and clean itself. After cleaning, if the status indication part 32 no longer indicates a status abnormality, it indicates that the connection between the primary ONT terminal and the ODN device is faulty.
If the network detection device indicates normal status when the network detection device is docked with the ODN device, the user can dock the network detection device with the optical fiber splice closure. If the network detection equipment indicates that the state is abnormal, the user can judge that the connection part of the first optical fiber and the optical fiber joint box is possibly dirty or bent, and the optical fiber joint box is cleaned by the user. After cleaning, if the status indication component 32 no longer indicates a status abnormality, it indicates that the first optical fiber is actually in failure at the connection with the optical fiber splice closure.
The specific type of the status indication component 32 is not limited in the embodiments of the present application. Illustratively, the status indication component 32 may include one or more of an indicator light, a buzzer, and a display screen.
When the status indication part 32 includes a buzzer, the status indication part 32 may be configured to emit a sound when the optical power of the input optical signal is less than the target optical power threshold, and not emit a sound when the optical power of the input optical signal is greater than the target optical power threshold.
Where the status indicating component 32 comprises an indicator light, the status indicating component 32 may be configured to emit light of a first color when the optical power of the input optical signal is less than a target optical power threshold, and to emit light of a second color when the optical power of the input optical signal is greater than the target optical power threshold, the first and second colors being different, and the first color being used to indicate a status anomaly.
For example, the first color may be red, and the second color may be green, but is not limited thereto. In practical applications, the first color and the second color may also be combined with other colors. In addition to using different colors to indicate normal status and abnormal status, the status indication component 32 can also indicate different statuses in other ways, which are described in several examples below:
when the indication state is normal, the state indicating member 32 does not emit light, and when the indication state is abnormal, the state indicating member 32 emits light;
when the indication state is normal, the state indicating component 32 emits light, and when the indication state is abnormal, the state indicating component 32 does not emit light;
when the indication state is normal, the state indicating component 32 emits continuous light, and when the indication state is abnormal, the state indicating component 32 flashes and emits light;
when the indication state is normal, the state indicating member 32 blinks and emits light, and when the indication state is abnormal, the state indicating member 32 emits continuous light.
Where the status indication component 32 includes a display screen, the status indication component 32 may be configured to display information indicating a status anomaly, such as one or more of textual information or graphical information, when the optical power of the input optical signal is less than the target optical power threshold. In addition, the status indication part 32 may also display the optical power input to the inside of the network detection device, and at this time, the status indication part 32 may be configured to calculate the corresponding optical power from the input optical signal and display the calculated optical power.
The implementation manner of the status indication component 32 indicating different statuses according to the magnitude of the optical power of the optical signal is not limited in the embodiments of the present application.
The status indication part 32 may include a photoelectric conversion device of which an input end is connected to the joint part 31 and an output end is connected to an alarm device, and a photoelectric conversion device for converting an optical signal into an electrical signal. The alert device is configured to indicate a state abnormality when the electric power of the input electric signal is less than a target electric power threshold.
The optical signal output from the connector member 31 is converted into an electrical signal by the photoelectric conversion device, and then input to the alarm device. The alarm device indicates the state according to the magnitude of the input electric signal.
The embodiments of the present application are not limited to specific configurations of photoelectric conversion devices.
In one possible implementation, the photoelectric conversion device includes a PIN photodetection circuit and an amplification circuit. The input of PIN photoelectric detection circuit is connected with joint part 31, and PIN photoelectric detection circuit's output is connected with amplifier circuit's input, and PIN photoelectric detection circuit is used for changing light signal into the signal of telecommunication. The output end of the amplifying circuit is connected with the alarm device and used for amplifying the electric signal.
The optical signal output by the joint part 31 is converted into an electrical signal by the PIN photoelectric detection circuit and then input to the amplification circuit, and the electrical signal is amplified by the amplification circuit and then input to the alarm device.
In another possible implementation manner, the photoelectric conversion device may also be a Complementary Metal Oxide Semiconductor (CMOS) device or a charge-coupled device (CCD).
The status indication component 32 may be an active component that requires power to complete the status indication. The power source of the status indication component 32 is not limited in the embodiments of the present application.
In one possible implementation, the connector component 31 includes an optical connector sub-component and an electrical connector sub-component. Both the optical connector sub-assembly and the electrical connector sub-assembly are connected to the status indicator component 32. That is, the connector component 31 is an optoelectric composite connector component, and when the optoelectric composite connector component is used, the optoelectric composite interface is connected to the optoelectric composite interface, the optical interface portion of the optoelectric composite interface is connected to the optoelectric connector sub-component, and the electric interface portion is connected to the electric connector sub-component, and supplies power to the status indicator component 32 through the electric connector sub-component.
In another possible implementation, the status indication means 32 may also be provided with a battery, which supplies the internal power consuming components.
In another possible implementation, the status indication component 32 may also have a separate power supply port and be separately powered by an external power source.
An embodiment of the present application further provides an optical distribution network, as shown in fig. 1, the optical distribution network includes a main optical network terminal (main ONT terminal), an optical distribution network device (ODN device), a plurality of optical fiber splice closures, and a plurality of edge optical network terminals (edge ONT terminals). The main ONT terminal is connected to the common interface part 11 of the ODN device, the plurality of branch interface parts 13 of the ODN device are connected to the first interface parts 21 of the plurality of fiber splice closures, respectively, and the second output interface part 21 of each fiber splice closure is connected to one edge ONT terminal.
The optical distribution network comprises an optical distribution network interface, an optical fiber connector box and an optical fiber distribution network interface, wherein the optical distribution network interface is used for connecting optical fiber connectors of optical distribution networks, and the optical fiber connector box is used for connecting optical fiber connectors of optical distribution networks.
According to the scheme shown in the embodiment of the application, the optical fiber connector box and/or the ODN equipment in the embodiment of the application are/is applied to the optical distribution network, so that the fault position and the fault reason can be more conveniently determined when the optical distribution network breaks down, a user can timely maintain the optical distribution network, and the network experience of the user is improved.
Moreover, for operators, the frequency of the workers to maintain the network is reduced, and the labor cost is saved.
Next, a failure determination method of the optical distribution network is described in a table manner, as shown in table 1. It should be noted that: first, the indicator lights of Table 1 are merely exemplary, and other forms of status detection assemblies may be used in practice; secondly, the red light of the indicator light indicates that the state is abnormal, and the green light of the indicator light indicates that the state is normal; thirdly, the edge ONT terminal is provided with an indicator light and can indicate the network state of the edge ONT terminal; fourth, the failure location and cause shown in the last column of table 1 are not the only failure location and cause.
TABLE 1
Figure BDA0002787600200000191
In the embodiments of the present application, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. The term "plurality" means two or more unless expressly limited otherwise.
The above description is only an example of the present application and should not be taken as limiting the present application, and any modifications, equivalents, improvements and the like that are made within the principles of the present application should be included in the scope of the present application.

Claims (14)

1. An Optical Distribution Network (ODN) device, characterized in that, the ODN device comprises a common interface component (11), a main optical splitter (12), a plurality of branch interface components (13) and a state detection component (14), the branch interface components (13) are plural;
the common interface component (11) is configured to interface with a trunk optical fiber and transmit an optical signal transmitted by the trunk optical fiber to the main optical splitter (12);
the main optical splitter (12) is configured to split an input optical signal into a plurality of optical signals and transmit the optical signals to a plurality of branch interface parts (13), respectively;
the branch interface component (13) is configured to interface with a branch optical fiber to transmit an optical signal thereto;
the state detection component (14) is configured to drop a portion of the optical signal from the transmission optical path between the common interface component (11) and the branch interface component (13) for state detection.
2. The ODN device according to claim 1, characterized in that said status detection assembly (14) comprises at least one detection splitter (141) and at least one detection member (142);
the detection optical splitter (141) is configured to split a part of an optical signal from a transmission optical path between the common interface section (11) and the branch interface section (13) and transmit the split optical signal to the detection section (142);
the detection component (142) is configured to indicate a network status based on an optical power of an input optical signal.
3. The ODN device according to claim 2, wherein said at least one detection splitter (141) comprises at least one first detection splitter (141a), said at least one detection member (142) comprises at least one first detection member (142 a);
an upstream optical interface of the main optical splitter (12) is connected to the common interface component (11), the main optical splitter (12) includes a plurality of downstream optical interfaces, at least one downstream optical interface of the main optical splitter (12) is connected to an upstream optical interface of the first detection optical splitter (141a), and each of the remaining downstream optical interfaces of the main optical splitter (12) is connected to one of the branch interface components (13);
each of the first detection splitters (141a) includes a first downstream optical interface (1411) and a second downstream optical interface (1412), each of the first downstream optical interfaces (1411) is connected to one of the branch interface sections (13), and each of the second downstream optical interfaces (1412) is connected to one of the first detection sections (142 a).
4. The ODN device according to claim 3, wherein said first detecting optical splitter (141a) and said first detecting member (142a) are each plural and in one-to-one correspondence;
each downlink optical interface of the main optical splitter (12) is connected with an uplink optical interface of one of the first detection optical splitters (141 a).
5. An ODN device according to any of claims 2-4, characterized in that said at least one detection beam splitter (141) comprises a second detection beam splitter (141b) and said at least one detection means (142) comprises a second detection means (142 b);
the upstream optical interface of the second detection optical splitter (141b) is connected to the common interface component (11), the second detection optical splitter (141b) includes a third downstream optical interface (1413) and a fourth downstream optical interface (1414), the third downstream optical interface (1413) is connected to the upstream optical interface of the main optical splitter (12), and the fourth downstream optical interface (1414) is connected to the second detection component (142 b);
each downstream optical interface of the main splitter (12) is connected to one of the branch interface components (13).
6. The ODN device according to any of claims 2-5, wherein the detection component (142) is a status indication component, the detection component (142) being configured to indicate a status anomaly when the optical power of the input optical signal is less than a target optical power threshold.
7. The ODN device according to any of claims 2-6, wherein the detection means (142) is configured to calculate a corresponding optical power from the input optical signal and to display the calculated optical power.
8. The ODN device according to any of claims 2-5, wherein the detection component (142) is a detection interface component, the detection component (142) being configured to interface with a network detection device such that the network detection device indicates a status anomaly upon detecting that the optical power of the optical signal input through the detection component (142) is less than a target optical power threshold.
9. An optical fibre splice closure, characterised in that it comprises a first interface part (21), a second interface part (22) and a second condition detecting assembly (23);
the first interface component (21) is configured to interface with a first optical fiber to transmit optical signals transmitted by the first optical fiber to the second interface component (22);
the second interface component (22) is configured to interface with a second optical fiber to transmit an optical signal to the second optical fiber;
the second state detection component (23) is configured to drop a portion of the optical signal from the optical path between the first interface part (21) and the second interface part (22) for state detection.
10. The fiber optic splice closure of claim 9, wherein the second condition detecting assembly (23) includes a third detecting beamsplitter (231) and a third detecting member (232);
an upstream optical interface of the third detection optical splitter (231) is connected to the first interface component (21), the third detection optical splitter (231) has a fifth downstream optical interface (2311) and a sixth downstream optical interface (2312), the fifth downstream optical interface (2311) is connected to the second interface component (22), and the sixth downstream optical interface (2312) is connected to the third detection component (232);
the third detection component (232) is configured to indicate a network status based on an optical power of an input optical signal.
11. The fiber optic splice closure of claim 10, wherein the third detection component (232) is a status indication component, the third detection component (232) being configured to indicate a status anomaly when the optical power of the incoming optical signal is less than a target optical power threshold.
12. The fiber optic splice closure of claim 10, wherein the third detection component (232) is a detection interface component, the third detection component (232) configured to interface with a network detection device such that the network detection device indicates a condition anomaly upon detecting that the optical power of an optical signal input through the detection interface component is less than a target optical power threshold.
13. A network test device comprising a splice component (31) and a status indicator component (32), the splice component (31) for interfacing with the ODN device of claim 8, the fiber optic splice closure of claim 12;
the joint member (31) is connected to the status indicating member (32);
the status indication component (32) is configured to indicate a status anomaly when the optical power of the input optical signal is less than a target optical power threshold.
14. An optical distribution network comprising a main optical network ONT terminal, an ODN device, a plurality of fibre optic closures and a plurality of edge ONT terminals, the ODN device being an ODN device according to any one of claims 1 to 8 and/or the fibre optic closures being fibre optic closures according to any one of claims 9 to 12;
the main ONT terminal is connected with a common interface part (11) of the ODN equipment, a plurality of branch interface parts (13) of the ODN equipment are respectively connected with first interface parts (21) of a plurality of optical fiber splice boxes, and a second interface part (22) of each optical fiber splice box is connected with one edge ONT terminal.
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