CN112583481A

CN112583481A - Optical cable fiber core optical signal acquisition device, resource detection equipment and platform

Info

Publication number: CN112583481A
Application number: CN202011644063.2A
Authority: CN
Inventors: 王健
Original assignee: Individual
Current assignee: Wang Jian; Xu Hangyu; Xu Qiushuang
Priority date: 2020-12-30
Filing date: 2020-12-30
Publication date: 2021-03-30

Abstract

The application discloses optical cable fiber core optical signal collection system, resource check out test set and platform. The light splitting piece is arranged on the optical cable fiber core optical signal acquisition device, so that bidirectional optical signals in an optical fiber channel can be acquired under the condition that the optical path loss is not increased basically, and the signal acquisition in the optical fiber channel is realized. Optical signal collection and identification in an optical fiber channel are realized by arranging optical cable fiber core resource detection equipment, and the optical signal can be transmitted to a network through communication equipment; and the connection state of the optical fiber, the quality of an optical fiber passage and the damage point of the optical fiber can be directly detected by arranging the detection plate. The problem that the optical cable fiber core occupies or is in an idle state and the connection relation of the idle fiber cores in the adjacent optical cables cannot be detected is solved. By arranging the optical cable fiber core resource detection platform, the unified management of the whole network optical fiber resources is realized. The complexity of optical network maintenance is reduced. And further solve the technical problems that the light path resources are wasted and cannot be managed in a unified manner.

Description

Optical cable fiber core optical signal acquisition device, resource detection equipment and platform

Technical Field

The application relates to the technical field of optical fiber communication, in particular to an optical cable fiber core optical signal acquisition device, resource detection equipment and a platform.

Background

Since the eighties of the last century where optical fiber communication was applied, copper wire has been completely replaced by the fiber to date, becoming the main medium for information transfer. With the large-scale laying of optical fiber cables, the huge and intricate optical fibers appear to be disordered, and the utilization rate and efficiency of the optical fibers are worried. There is an urgent need for a means to standardize the optical fibers of a fiber optic cable that have been laid and are ready to be laid.

In addition, the optical cable has a wide distribution area, and the optical cable is generally inspected once for months or years under the condition that the number of operation and maintenance personnel is certain. The monitoring of the optical cable at present mainly depends on an optical path monitoring mode of an optical transceiver, and a certain optical path of the optical transceiver only runs in two fiber cores of the optical cable, so that the whole fiber cores of the optical cable cannot be monitored in real time, and the running condition of the optical cable cannot be comprehensively reflected. When the optical cable breaks down, a certain fiber core of the optical cable can be judged to be broken only by interrupting the operation task in the optical cable, if the optical cable is bitten by a mouse or accidentally injured by municipal construction engineering, part of the fiber core of the optical cable is broken, if no idle fiber core exists in the terminal optical cable, operation and maintenance personnel can not know which fiber cores in the optical cable have faults, the fault point judgment and emergency treatment are delayed, and the faults can be further expanded.

At present, operators manage massive optical fibers mainly through resource systems.

When the optical cable is completed, the optical cable segment, the fiber core and finished end information are recorded into a resource system and are not changed unless cutting and connecting construction is carried out. The resource accuracy rate is extremely high in the engineering stage.

After the optical cable is delivered and the service is opened, the resource system configures or removes optical paths aiming at two ends of the service, wherein the optical paths contain the fiber core information of each optical cable section and need to jump fibers from outside personnel to the site (a machine room or optical cross). And after the outside personnel jump the fiber and open the service, returning to the work order, and confirming that the fiber core is occupied by the resource system.

During the use of the optical fiber, the following problems may occur:

when the light path is opened: when an outside staff jumps to the site, the fiber is not jumped according to the fiber core of the resource allocation, but one optical fiber is selected additionally. After the optical path is opened, the resource management platform is not informed to modify the pre-occupied resources, at this time, the actual fiber core is idle, but the fiber resources are displayed to be occupied.

When the light path is dismantled: and when the outside line personnel are used again, the outside line personnel find that the corresponding fiber core and the terminal are in an occupied state, and cannot open the service.

Disclosure of Invention

The main purpose of the present application is to provide an optical fiber core optical signal acquisition device, a resource detection device and a platform, so as to solve the problem of confusion of optical fiber resource management in the related art. Aiming at the problems, the optical cable fiber core resource detection equipment and the optical cable fiber core resource detection platform are developed, and the purpose is to perform real-time, effective and simple management on massive optical cable fiber core resources.

In order to achieve the above object, in a first aspect, the present application provides an optical fiber core optical signal acquisition device.

The optical signal extraction module comprises a first optical interface and a second optical interface, the first optical interface and the second optical interface are used for connecting optical fibers in series, a plurality of light splitting pieces are arranged in the optical signal extraction module, and the light splitting pieces are used for splitting optical signals for detection; the optical splitter comprises a plurality of optical splitting signal detection ports, wherein the optical splitting signal detection ports are arranged on the emission paths of optical signals split by the optical splitting sheets, and the optical splitting signal detection ports are connected with optical fibers or provided with photoelectric conversion devices.

Furthermore, the first optical interface and the second optical interface are relatively arranged on the same straight line in series, the light splitting sheet is arranged between the first optical interface and the second optical interface, and an included angle is formed between the perpendicular bisector of the light splitting sheet and the axes of the first optical interface and the second optical interface, so that the light emitted by the first optical interface or/and the second optical interface is reflected by the light splitting sheet to form a part and is emitted to the light splitting signal detection port; the reflectivity of the light splitting sheet is 1-5%, and the transmissivity of the light splitting sheet is 99-95%.

Furthermore, the first optical interface and the second optical interface are adjacently arranged, a plurality of included angles are arranged between the first optical interface and the second optical interface, the light splitting sheet is arranged at the intersection point of the axes of the first optical interface and the second optical interface, and the axes of the first optical interface and the second optical interface are symmetrical relative to the perpendicular bisector of the light splitting sheet; the light splitting signal detection port is arranged on the other side of the light splitting sheet; the reflectivity of the light splitting sheet is 95-99%, and the transmissivity of the light splitting sheet is 1-5%.

In a second aspect, an optical signal collector for an optical fiber core of an optical cable is provided, wherein an optical fiber plug is arranged on a first optical interface of an optical signal extraction module, and an optical fiber jack is arranged on a second optical interface of the optical signal extraction module; the optical cable core optical signal acquisition device comprises a serial bidirectional light splitting component, a serial light splitting component or a serial light splitting detection component. The series bidirectional light splitting assembly comprises two light splitting sheets with inclined angles or a light transmitting material sheet with two coating films at two inclined angles, an optical interface male head, an optical interface female head and two side light splitting optical fibers; the series light-splitting detection assembly comprises a light-splitting sheet, a condensing lens, a photodiode, an optical interface male head, an optical interface female head and a side detection electrical interface; the series light splitting assembly comprises a light splitting sheet, a condensing lens, an optical interface male head, an optical interface female head and a side light splitting optical fiber.

In a third aspect, the present application further provides an optical cable core resource detection device, including the optical cable core optical signal acquisition apparatus. The optical cable fiber core optical signal acquisition device comprises a plurality of sampling plates, wherein the sampling plates are connected with the optical cable fiber core optical signal acquisition device through optical fibers or cables and are used for preprocessing optical signals and/or electric signals; the sampling plate is connected with a back plate through a cable signal, and the back plate is used for collecting and forwarding signals collected by the sampling plate; the back plate is connected with a main control board through a cable signal; the main control board is connected with a communication device and is connected to the Ethernet through the communication device; the detection board is connected with the back board through signals, and the detection board is connected with the sampling board through signals of optical fibers.

Further, the sampling plate comprises a plurality of multi-core optical fiber connectors, and the multi-core optical fiber connectors are optically connected with the optical cable core optical signal acquisition device or/and the detection plate through optical fibers; the multi-core optical fiber connector is connected with a photoelectric conversion array, the photoelectric conversion array comprises a single-fiber optical receiving assembly or a double-fiber optical receiving assembly, the photoelectric conversion array is connected with an amplifying circuit, the amplifying circuit is connected with an optical power and optical code detection circuit, and the optical power and optical code detection circuit is electrically connected with a main processor.

Furthermore, the main control board comprises a multi-path optical power and optical coding data receiving and storing unit, a multi-path optical power comparison analysis and fault optical path positioning unit, a detection board optical coding control circuit, an alarm unit and a processor; the multi-path optical power and optical coding data receiving and storing unit, the multi-path optical power comparison analysis and fault light path positioning unit, the detection board optical coding control circuit, the alarm unit and the communication unit are in signal connection with the processor.

Further, the detection board comprises a control circuit, the control circuit is connected with a light source driving circuit, and the light source driving circuit is connected with a laser; the optical fiber detection device comprises an optical cross network, wherein the optical cross network is connected with a laser and a sampling plate through an optical path, an OTDR optical time domain analysis module is arranged on the detection plate, and the OTDR optical time domain analysis module is used for detecting optical fiber damage points.

Further, including handheld light source, handheld light source includes laser instrument, pulse light code production circuit and drive circuit, pulse light code production circuit pass through drive circuit with the laser instrument signal links to each other, handheld light source includes communication module, handheld light source pass through communication module with main control board communication connection.

In a fourth aspect, the application further provides an optical cable fiber core resource detection platform, which includes the optical cable fiber core resource detection device. The optical cable fiber core resource detection system comprises a monitoring software system, wherein the monitoring software system is arranged at the cloud end and comprises a user optical path information database, installation and maintenance terminal management software, local side unified network management software and a database, wherein the user optical path information database is distributed and stored in optical cable fiber core resource detection equipment; and the monitoring software system is in signal connection with the optical cable fiber core resource detection equipment through a network. The handheld light source is connected with the monitoring software system through the communication module.

In an embodiment of the present application, an optical fiber core optical signal acquisition device is provided. Through setting up the beam splitting piece: under the condition of basically not increasing the loss of the optical path, bidirectional optical signals in the optical fiber path can be collected, and the signal collection in the optical fiber path is realized; and the collected signals can be directly output in the form of optical signals or converted into electric signals for output.

In the embodiment of the application, the optical cable core resource detection device is provided. Through setting up this device: the optical signal acquisition and identification in the optical fiber channel are realized, and the optical signal can be transmitted to a network through communication equipment; and the connection state of the optical fiber, the quality of an optical fiber passage and the damage point of the optical fiber can be directly detected by arranging the detection plate. By arranging the handheld light source, any unconnected optical cable can be manually input with a detection signal source. The problem that the optical cable fiber core occupies or is in an idle state and the connection relation of the idle fiber cores in the adjacent optical cables cannot be detected is solved.

In an embodiment of the application, an optical cable core resource detection platform is provided. By setting the system: and unified management of the whole network optical fiber resources is realized. The complexity of optical network maintenance is reduced; the cost of monitoring the optical fiber in the optical network maintenance is reduced. And further solve the technical problems that the light path resources are wasted and cannot be managed in a unified manner.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, serve to provide a further understanding of the application and to enable other features, objects, and advantages of the application to be more apparent. The drawings and their description illustrate the embodiments of the invention and do not limit it. In the drawings:

fig. 1 is a schematic diagram of a connection relationship between optical cable fiber core resource detection equipment in a central machine room and a plurality of remote machine rooms connected in series according to an embodiment of the present invention.

FIG. 2 is a schematic diagram of the internal circuit connections of the novel handheld light source and optical code generator with the configuration accessory according to the embodiment of the present invention.

FIG. 3 is a schematic diagram of the connection between the fiber core resource detecting device of the optical cable and the external fitting optical fiber junction box according to the embodiment of the invention.

Fig. 4 is a schematic diagram of the connection of a fiber optic splice closure of the type one with the novel two-in two-out optical splitter inside in an embodiment of the present invention.

FIG. 5 is a schematic diagram of the cascade connection of a master and a slave of the optical cable core resource detection device according to the embodiment of the present invention.

FIG. 6 is a schematic diagram of the main circuit of a first type of fiber optic cable core resource detection device in accordance with an embodiment of the present invention.

FIG. 7 is a schematic diagram of the main circuit of a second type of fiber core resource detecting device for an optical cable according to an embodiment of the present invention.

Fig. 8 is a schematic main circuit diagram of a novel dual-fiber optical receiving assembly inside a photoelectric conversion array of a sampling plate of an optical cable fiber core resource detection device according to an embodiment of the present invention.

FIG. 9 is a schematic diagram of the main circuit of a third type of fiber optic cable core resource detection device in accordance with an embodiment of the present invention.

Fig. 10 is a schematic circuit diagram of the fiber optic junction box type two of the external configuration member and the novel internal bidirectional split-beam detection assembly according to the embodiment of the invention.

Fig. 11 is a schematic view of the structural connection of the fiber optic junction box and the tandem bidirectional splitter assembly of the present invention, in an embodiment of the present invention.

Fig. 12 is a schematic diagram of a main structure of a first type of bidirectional optical splitter module connected in series with an external configuration component according to an embodiment of the present invention.

Fig. 13 is a schematic diagram of a main structure of a second type of bidirectional optical splitter module connected in series with an external configuration component according to an embodiment of the present invention.

Fig. 14 is a schematic structural connection diagram of the optical fiber junction box and the serial light splitting module (or the serial light splitting detection module) of the configuration member according to the embodiment of the invention.

Fig. 15 is a schematic diagram of a main structure of a tandem spectroscopic detection assembly of an external configuration member according to an embodiment of the present invention.

Fig. 16 is a schematic diagram of a main structure of a serial light splitting module of an external configuration member according to an embodiment of the present invention.

Detailed Description

In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be used. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

In this application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.

Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meaning of these terms in this application will be understood by those of ordinary skill in the art as appropriate.

In addition, the term "plurality" shall mean two as well as more than two.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.

In the following embodiments, the first optical interface corresponds to an optical fiber in the upstream direction in the drawings, and the second optical interface corresponds to an optical fiber in the downstream direction.

Example 1:

as shown in fig. 4 and fig. 13, this embodiment discloses a preferred embodiment of an optical fiber core optical signal acquisition device. The optical signal acquisition device for the optical cable core comprises an optical fiber junction box, wherein an optical signal extraction module is arranged in the optical fiber junction box, the optical signal extraction module comprises a shell, a light splitting sheet is arranged in the shell, semi-reflective and semi-transparent films are arranged on two sides of the light splitting sheet, and the reflectivity of the semi-reflective and semi-transparent films is 1-5%, preferably 3%; the transmission rate of the semi-reflecting and semi-permeable film is 95-99%, and the preferred transmission rate is 97%.

The optical signal draws the module and includes first light interface, second light interface, first light interface, second light interface set up on the shell, first light interface, second light interface establish ties on optical fiber light path, first light interface, second light interface establish ties relatively and set up on same straight line, divide the piece set up in between first light interface, the second light interface, divide the perpendicular bisector of piece with be provided with the contained angle between the axis of first light interface, second light interface. The shell is provided with two light splitting signal detection ports, and the axis of the first light splitting signal detection port and the axis of the first optical interface are symmetrical relative to the perpendicular bisector of the light splitting sheet; the axis of the second light splitting signal detection port and the axis of the second optical interface are symmetrical relative to the perpendicular bisector of the light splitting sheet; the light splitting sheet reflects part of the light emitted by the first optical interface and the second optical interface and emits the part of the light into the first light splitting signal detection port and the second light splitting signal detection port.

The first light splitting signal detection port and the second light splitting signal detection port are provided with optical fibers, and the optical fibers are used for transmitting the split optical signals.

In the specific operation process, when an optical signal is emitted from the first optical interface, the optical signal reflects 3% of the optical signal through the light splitting sheet to reach the first light splitting signal detection port, and is transmitted out through the optical fiber; the rest 97% of light enters the second optical interface to be transmitted; similarly, when the optical signal is emitted from the second optical interface, the optical signal reflects 3% of the optical signal through the beam splitter to reach the second split optical signal detection port, and is transmitted out through the optical fiber; the rest 97% of light enters the first optical interface to be transmitted; under the condition of basically not increasing the optical path loss, the bidirectional optical signals in the optical fiber channel can be collected, and the signal collection in the optical fiber channel is realized.

Example 2:

as shown in fig. 4 and 12, the present embodiment discloses a preferred embodiment of an optical fiber core optical signal collecting device. The optical signal acquisition device for the optical cable core comprises an optical fiber junction box, wherein an optical signal extraction module is arranged in the optical fiber junction box and comprises a shell, two light splitting sheets are arranged in the shell, a semi-reflective and semi-permeable film is arranged on one surface of each light splitting sheet, and the reflectivity of the semi-reflective and semi-permeable film is 1-5%, preferably 3%; the transmittance of the semi-reflecting and semi-permeable film is 95-99%, and the preferred transmittance is 97%.

The optical signal extraction module comprises a first optical interface and a second optical interface, the first optical interface and the second optical interface are arranged on the shell, the first optical interface and the second optical interface are connected in series on an optical fiber light path, the first optical interface and the second optical interface are relatively connected in series and arranged on the same straight line, the two light splitting sheets are arranged between the first optical interface and the second optical interface, and an included angle is formed between a perpendicular bisector of each light splitting sheet and the axis of the first optical interface and the axis of the second optical interface; the light reflecting surface of the first light splitter is arranged at one side close to the first optical interface; and the light reflecting surface of the second light splitting sheet is arranged at one side close to the second interface.

The shell is provided with two light splitting signal detection ports, and the axis of the first light splitting signal detection port and the axis of the first optical interface are symmetrical relative to the perpendicular bisector of the first light splitting sheet; the axis of the second light splitting signal detection port and the axis of the second optical interface are symmetrical relative to the perpendicular bisector of the second light splitting sheet; the first light splitting sheet enables the first light splitting sheet to reflect part of the light emitted by the first optical interface and emit the light into the first light splitting signal detection port; the second light splitting sheet enables the second light splitting sheet to reflect part of the light emitted by the second optical interface and emit the light into the second light splitting signal detection port. The first light splitting signal detection port and the second light splitting signal detection port are provided with optical fibers, and the optical fibers are used for transmitting the split optical signals.

In the specific operation process, when an optical signal is emitted from the first optical interface, the optical signal reflects 3% of the optical signal through the first light splitting sheet to reach the first light splitting signal detection port, and is transmitted out through the optical fiber; the rest 97% of light enters the second optical interface to be transmitted; similarly, when the optical signal is emitted from the second optical interface, the optical signal reflects 3% of the optical signal through the second light splitting sheet to reach the second light splitting signal detection port, and is transmitted out through the optical fiber; the rest 97% of light enters the first optical interface to be transmitted; under the condition of basically not increasing the optical path loss, the bidirectional optical signals in the optical fiber channel can be collected, and the signal collection in the optical fiber channel is realized.

Example 3:

as shown in fig. 10, 15 and 16, the present embodiment discloses a preferred embodiment of an optical fiber core optical signal acquisition device. The optical signal acquisition device for the optical cable core comprises an optical fiber junction box, wherein an optical signal extraction module is arranged in the optical fiber junction box, the optical signal extraction module comprises a shell, a light splitting sheet is arranged in the shell, a semi-reflective and semi-permeable film is arranged on one surface of the light splitting sheet, and the reflectivity of the semi-reflective and semi-permeable film is 95-99%, preferably 97%; the transmissivity of the semi-reflecting and semi-permeable film is 1-5%, and the preferred transmissivity is 3%.

The first optical interface and the second optical interface are arranged adjacently, a plurality of included angles are arranged between the first optical interface and the second optical interface, the light splitting sheet is arranged at the intersection point of the axes of the first optical interface and the second optical interface, and the axes of the first optical interface and the second optical interface are symmetrical relative to the perpendicular bisector of the light splitting sheet; the light splitting signal detection port is arranged on the other side of the light splitting sheet; the light splitting signal detection port is provided with an optical fiber or a photoelectric conversion device. The photoelectric conversion device is a photodiode. Preferably, a condenser lens may be provided between the spectroscopic sheet and the spectroscopic signal detection port.

In the specific operation process, when an optical signal is emitted from the first optical interface or the second optical interface, the optical signal is reflected by the light splitting sheet for 97 percent and reaches the second optical interface or the first optical interface, and is transmitted out through the optical fiber; the rest 3% of light penetrates through the light splitting sheet to reach the light splitting signal detection port, is transmitted out through an optical fiber, and is converted into an electric signal through the photoelectric conversion device to be transmitted out; under the condition of basically not increasing the optical path loss, the bidirectional optical signals in the optical fiber channel can be collected, and the signal collection in the optical fiber channel is realized.

Example 4:

as shown in fig. 11 and 14, on the basis of

embodiments

1, 2 and 3, the optical fiber core optical signal extraction module (collection device) is integrally moved to the outside of the optical fiber junction box, so as to form an optical fiber core optical signal collector as a whole. The type of the optical fiber collecting device is a serial bidirectional light splitting component, a serial light splitting component or a serial light splitting detection component.

As shown in fig. 12 and 13, the components of the serial bidirectional optical splitter include: the two-side optical fiber spectrometer comprises two light splitting sheets with inclined angles or a glass sheet (or other light-transmitting material sheets) with two coated surfaces with one inclined angle, an optical interface male head, an optical interface female head, two-side light splitting optical fibers and the like.

And the first optical interface and the second optical interface of the optical fiber core optical signal extraction module of the optical cable are provided with optical fiber plugs to form a whole. The first optical interface is provided with an optical fiber interface male head, and the second optical interface is provided with an optical fiber interface female head. Form modularization, be convenient for installation and use. The optical fiber interface male head adopts an SC or FC male head, and the optical fiber interface female head adopts an SC or FC female head.

And integrally moving the serial bidirectional light splitting assembly, the serial light splitting assembly or the serial light splitting detection assembly outside the optical fiber junction box (fiber melting disc). As shown in fig. 11, the serial bidirectional optical splitter is installed outside the optical fiber junction box, a male port of the serial bidirectional optical splitter is inserted into a flange of the optical fiber junction box, and a female port of the serial bidirectional optical splitter is normally connected to an external optical fiber.

As shown in fig. 15, the components of the serial spectroscopic detection assembly include a spectroscopic sheet, a condenser lens, a photodiode, an optical interface male connector, an optical interface female connector, a side detection electrical interface, and the like.

Referring to fig. 14, a male port of the serial spectral detection assembly is inserted into an optical interface flange of the optical fiber junction box (fused fiber plate), and a female port of the serial spectral detection assembly is normally connected with an external optical fiber.

As shown in fig. 16, the components of the serial optical splitter assembly include a splitter, a condenser lens, an optical interface male connector, an optical interface female connector, a side optical splitter, and the like.

Connection relationship between the series optical splitter module and the optical fiber junction box referring to fig. 14, a male port of the series optical splitter module is inserted into an optical interface flange of the optical fiber junction box (fusion fiber disk), and a female port of the series optical splitter module is normally connected with an external optical fiber.

Example 5:

the embodiment discloses a preferred embodiment of an optical cable fiber core resource detection device. As shown in fig. 6 and 9, the optical signal collecting device includes the optical cable core. The optical fiber sampling device comprises a plurality of sampling plates, wherein each sampling plate comprises a plurality of multi-core optical fiber connectors MPO, and the multi-core optical fiber connectors MPO are optically connected with the optical fiber core optical signal acquisition device and the detection plate through optical fibers. The sampling plate comprises a photoelectric conversion array, an amplifying circuit, a light power and light code detection circuit and a main processor FPGA; the multi-core optical fiber connector is connected with a photoelectric conversion array, the photoelectric conversion array is connected with an amplifying circuit, the amplifying circuit is connected with an optical power and optical code detection circuit, and the optical power and optical code detection circuit is electrically connected with a main processor FPGA. The photoelectric conversion array is characterized by further comprising a plurality of analog switches, the analog switches are used for gating a plurality of photoelectric signal sources, the amplifying circuit comprises a variable gain amplifying circuit, the variable gain amplifying circuit is connected with a gain control circuit, the gain control circuit is connected with the FPGA, one end of the variable gain amplifying circuit is connected with the photoelectric conversion array, and the other end of the variable gain amplifying circuit is electrically connected with the optical power and optical code detection circuit through the analog switches.

The sampling plate is used for preprocessing an optical signal, and a plurality of sampling plates are connected to the back plate and used for collecting and forwarding signals collected by the sampling plates; the back plate forwards the signal of the sampling plate to the main control plate; the main control board is connected with a communication device and is connected to the Ethernet through the communication device; the main control board comprises a multi-path optical power and optical coding data receiving and storing unit, a multi-path optical power comparison analysis and fault light path positioning unit, a detection board optical coding control circuit, an alarm unit and a processor; the multi-path optical power and optical coding data receiving and storing unit, the multi-path optical power comparison analysis and fault light path positioning unit, the detection board optical coding control circuit, the alarm unit and the communication unit are in signal connection with the processor. The alarm unit is an indication signal lamp, and the main control board is provided with a wireless communication module for signal connection with the mobile terminal or other equipment.

The detection board is electrically connected with the back board and comprises a control circuit, the control circuit is connected with a light source driving circuit, and the light source driving circuit is connected with a laser; the detection board comprises an optical cross network OXC, and the optical cross network OXC is connected with a laser and a multi-core optical fiber connector MPO on the sampling board through an optical path.

Optionally, an OTDR optical time domain analysis module may be disposed on the detection board, the OTDR optical time domain analysis module is connected to the control circuit by a signal, the OTDR optical time domain analysis module is optically connected to the optical cross network OXC, and the OTDR optical time domain analysis module is configured to detect a damaged point of the optical fiber.

Optionally, the electrical signal collected by the optical fiber core optical signal collection device may be directly connected to the variable gain amplification circuit.

In actual engineering, as required, a handheld light source can be arranged, and the handheld light source can send out optical signals which are the same as those of the detection plate and are matched with workers to detect the optical fibers. The handheld light source comprises a laser, a pulse light code generating circuit and a driving circuit, the pulse light code generating circuit is connected with the laser through the driving circuit, the handheld light source comprises a communication module, and the handheld light source is in communication connection with the main control board through the communication module.

In the specific operation process, the optical fiber core optical signal acquisition device acquires optical signal and sends the optical signal to the multi-core optical fiber connector MPO, the multi-core optical fiber connector MPO forwards the optical signal to the photoelectric conversion array, and the photoelectric conversion array converts the optical signal into an electrical signal. The photoelectric conversion array can detect light of an upper path and a lower path of an optical fiber by one photoelectric device. And then the signal is amplified to proper strength through variable gain and is transmitted to an optical power and optical code detection circuit through an analog switch, and the optical power and optical code detection circuit decomposes the optical power and code information of the signal and forwards the decomposed signal to a backboard through a main processor FPGA.

The back board sends the signal to the main control board, the main control board stores and further analyzes the data, the signal is processed through the multi-path optical power comparison analysis and fault optical path positioning unit and the detection board optical coding control circuit to obtain the connection state and the connection quality of the optical fiber, and the data are sent to the Ethernet.

During detection, the detection plate drives the laser to emit optical signals with specific frequency and codes through the light source driving circuit, the optical signals are transmitted to the multi-core optical fiber connector MPO through the optical cross network OXC, then are transmitted to the optical fiber through the multi-core optical fiber connector MPO, then the optical signals are transmitted to the other end of the optical fiber connection and are detected by another optical fiber core resource detection device, and therefore the optical fiber resource state detection of the whole network can be achieved through the matching of the optical fiber core resource detection devices. The optical signal acquisition and identification in the optical fiber channel are realized, and the optical signal can be transmitted to a network through communication equipment; and the connection state of the optical fiber, the quality of an optical fiber passage and the damage point of the optical fiber can be directly detected by arranging the detection plate. The problem that the optical cable fiber core occupies or is in an idle state and the connection relation of the idle fiber cores in the adjacent optical cables cannot be detected is solved.

Example 6:

the application also provides an optical cable fiber core resource detection platform which comprises the optical cable fiber core resource detection equipment. The optical cable fiber core resource detection system comprises a monitoring software system, wherein the monitoring software system is arranged at the cloud end and comprises a user optical path information database, installation and maintenance terminal management software, local side unified network management software and a database, wherein the user optical path information database is distributed and stored in optical cable fiber core resource detection equipment; the monitoring software system is in signal connection with the optical cable fiber core resource detection equipment through a network; the monitoring software system is in signal connection with the installation and maintenance terminal management software through a network. The whole monitoring software system is used for storing and processing resource management of the optical fibers, and can facilitate query and construction of workers and realize unified management of the optical fiber resources of the whole network. The complexity of optical network maintenance is reduced; the cost of monitoring the optical fiber in the optical network maintenance is reduced.

Example 7:

as shown in fig. 3, 4 and 6, the present embodiment discloses a preferred embodiment of an optical cable core resource detection device. A plurality of optical cable fiber core resource detection devices installed in a central machine room and remote machine rooms in various places form a serial topological structure, a plurality of fiber cores in adjacent optical cables connected in series are interconnected through a fiber melting disc on an optical fiber distribution frame ODF, and light-splitting detection optical fibers led out from the fiber melting disc are sent to the optical cable fiber core resource detection devices.

Such as: the 1 st optical cable of the central machine room, the 2 nd optical cable of the far-end machine room 2 and the 3 rd optical cable of the far-end machine room 3 are connected in series. Pulse light codes are inserted into the a-th idle fiber core (1 a fiber core for short) in the 1 st optical cable of the central machine room through a detection plate of optical cable fiber core resource detection equipment, the 2 nd optical cable detects the group of optical codes on the b-th fiber core (2 b fiber core for short) through optical cable fiber core resource detection equipment connected with a fiber melting disc, and meanwhile, the 3 rd optical cable also detects the group of optical codes on the c-th fiber core (3 c fiber core for short) through optical cable fiber core resource detection equipment connected with the fiber melting disc, so that the three fiber cores of 1a,2b and 3c in the three optical cables in series are determined to be connected together. The three optical cable fiber core resource detection devices are connected with the network management central server through the machine room Ethernet interface, and the data of the interconnection state of the three fiber cores 1a,2b and 3c can be reported and stored to the network management central server. The data of the idle optical fiber interconnection state of all optical cables in the country are detected in the same way and reported and stored to a network management central server, so that the clearing and unified management of the whole network optical fiber resources are realized.

Preferably, a wavelength division multiplexer WDM for monitoring wavelength light can be inserted in the sampling plate for inserting the monitoring wavelength optical signal into the original optical path. The connection relation among the components of the sampling plate is as follows: extracting 3% proportion light splitting optical fiber from an external (ODF distribution frame) micro-proportion light splitter, and connecting the optical fiber to a multi-core optical fiber connector MPO interface of a sampling plate through a multi-core optical fiber MPO jumper; and multiple paths of optical fibers connected with the MPO interface are respectively connected with a plurality of double-fiber optical receiving assemblies on the photoelectric conversion array.

Referring to fig. 8, the photoelectric conversion array has a plurality of novel dual-fiber light receiving assemblies, each dual-fiber light receiving assembly includes a focusing lens, two beams of light guided by two optical fibers can be focused on the same photosensitive surface of the photodetector, and the charged photodiode can convert the light intensity on the photosensitive surface into photocurrent.

The photodiode detects the optical power in the optical fiber, the generated photocurrent is sent to the variable gain amplifying circuit, the gain control circuit controls the amplification factor of the variable gain amplifying circuit according to the magnitude of the photocurrent, the optical power and optical code detecting circuit is connected with the multi-path variable gain amplifying circuit through the analog switch, and the multi-path amplified photocurrent signals are sampled through the switching of the analog switch; the optical power detection circuit converts the amplified photocurrent signal into an optical power digital signal, the optical coding detection circuit extracts the pulse optical coding digital signal with a frame structure by analyzing the change of the optical power digital signal, the optical power and optical coding detection circuit is connected with a main processor (FPGA), and the optical power digital signal and the optical coding digital signal are sent to a back panel through the main processor (FPGA).

Referring to fig. 3 and 4, there is illustrated: a sampling plate is connected with M (8) optical fiber junction boxes containing micro-proportion optical splitters, namely a fused fiber disc, one optical fiber junction box contains N (12) optical splitters with 2:2 light splitting proportion of 3%, the optical splitters respectively split 3% of light from the upper connection direction and the lower connection direction of a main optical path, and the 12 optical splitters lead out 24 optical fibers to be connected with a 24-core optical fiber connector MPO on the side face of the optical fiber junction box. One sampling plate can support M at most N (for example 8 x 12 is 96) optical channel detection, wherein the miniaturity proportion light signal of each branch of same main light path upper reaches antithetical couplet direction and lower antithetical couplet direction, and these two optic fibre are connected to same two fine optical receiver assembly on the sampling plate simultaneously, and the light signal on two optic fibre can be surveyed simultaneously to this kind of neotype two fine optical receiver assembly, and upper reaches antithetical couplet direction or lower antithetical couplet direction beam split can both detect luminous power.

The back plate receives the optical power and the optical coding data of the plurality of sampling plates, the optical power and the optical coding data are collected by the main processor FPGA on the back plate and then forwarded to the main control plate, and the control command and the data of the main control plate are also distributed to each sampling plate and the detection plate through the main processor FPGA on the back plate.

The main control panel comprises an indicator light, an alarm unit and a communication unit. The communication unit includes wired and wireless communication for maintenance purposes. The wired interface includes: a UART serial port, an RS485 interface, a CAN bus interface, a USB interface or an Ethernet interface and the like. The wireless communication interface comprises a Bluetooth or mobile internet card communication interface, the Bluetooth interface can be connected with mobile phone APP network management software, local maintenance is facilitated, and remote maintenance of remote networking of a mobile internet card can be achieved.

Referring to fig. 5, local devices may be stacked into a single ID device of one master and multiple slaves through a CAN bus or an ethernet interface.

Referring to fig. 1, the ethernet interface can be connected with local PC network management software, which is convenient for local maintenance; the Ethernet interface can also be connected with the network management analysis software of the remote server through the ready Ethernet interface of the telecommunication room, so as to realize remote network management and data reporting.

Assay plate, see fig. 6, the components and connections of the assay plate include: the optical time domain analyzer comprises an optical cross network (OXC), a laser and a control circuit for monitoring special wavelength (1625nm), an OTDR optical time domain analysis module which is selected and matched, and the like. A particular optical pulse code is inserted in a selected vacant optical fiber through an optical cross-connect network (OXC). The optical cable fiber core resource detection equipment in the downlink direction identifies the connection relation of the idle optical fibers by detecting the optical codes, so that the code registration of all the idle optical fibers in the whole network is realized, and the uniform scheduling of optical fiber resources is facilitated. If the inserted optical pulse code is switched into an OTDR detection signal, the accurate positioning of the position of the inserted optical fiber optical connector or the breakpoint can be realized, and the precision of optical fiber maintenance management is improved.

Coding each optical fiber of the whole network, and detecting all the optical fibers in use through intelligent optical cable optical fiber monitoring equipment; and then inserting pulse light codes into all unused idle fiber cores in the optical cable, detecting the light codes through the idle fiber cores in the optical cable in the lower-connection direction, and analyzing to obtain the one-to-one corresponding relation between the idle fiber cores in the lower-connection optical cable and the idle fiber cores in the upper-connection optical cable. The one-to-one corresponding connection relations of the idle optical fibers in the mass pairwise interconnection optical cables are reported to a network management center, the connection relations of all the idle optical fibers are recorded through a database, the conditions of all the idle optical fiber resources are obtained, and a basis is provided for flexibly scheduling the optical fiber resources. The continuous light emitted by the laser on the detection plate within a period of time can be used as a light source with constant power, the light emitted by the stable light source is inserted into a certain fiber core, the optical power is detected in a certain far-end fiber core which is known to be interconnected according to the detected connection relation of the fiber cores of the idle optical cable, and the optical path loss from an insertion point to a detection point can be calculated.

If the optical code insertion position is changed into an OTDR optical signal, the positions of an optical joint and a broken fault point of any optical fiber can be diagnosed, and the state of the optical fiber can be accurately monitored. The method is promoted from optical fiber resource management to real-time accurate monitoring of optical fiber resources and performance.

Example 8:

referring to fig. 1, the connection relationship between the optical cable fiber core resource detection device in the central machine room and the plurality of remote machine rooms connected in series is basically the same as that in the embodiment 7, and the only difference is that the mode of inserting the pulse light code into the a-th idle fiber core (1 a fiber core for short) in the 1 st optical cable of the central machine room is changed into the mode of inserting the light code into the handheld device.

Referring to fig. 7, the second type of optical cable core resource detection device includes: the optical fiber optical splitter comprises an optical fiber junction box, a sampling plate, a main control plate, a back plate, a machine frame and the like. The main circuit components of the optical cable fiber core resource detection device type II and the optical cable fiber core resource detection device type I are basically the same, and the main differences are as follows:

1. the second type of the optical cable fiber core resource detection equipment has no detection board, and a monitoring wavelength optical pulse coding signal cannot be inserted into the optical fiber in any one downlink direction through the wavelength division multiplexer by using the detection board. The optical pulse code signal needs to be inserted through a novel handheld light source and an optical code generator. 2. The sampling plate has no wavelength division multiplexer WDM for adding the optical pulse signal.

Referring to fig. 2, the components of the novel handheld light source and optical code generator include: the device comprises a laser, a driving circuit, a pulse light coding generation circuit and a local wireless communication module, wherein Bluetooth can be selected; a liquid crystal display screen; pressing a key; the battery and the mobile communication terminal matched with the outside can be selected as a mobile phone. Configuration and control application software APP on the mobile communication terminal can be connected with the handheld light source and the optical code generator through Bluetooth communication, the luminous power of the handheld light source and the code pattern of pulse light codes are configured on line, each optical fiber on each distribution frame of the whole network is distributed with unique optical codes according to the coding rules, and the handheld light source and the optical code generator send the pulse light codes to the specified optical fiber core according to the software command of the mobile terminal.

And the optical coding information can be detected by which fiber core in which optical cables connected in series in the downstream direction, so that which fiber core in which optical coding positions are inserted can be determined to be connected with the fiber core in which the optical coding position is inserted. The configuration software on the mobile terminal is networked with the network management center of the optical cable fiber core resource detection platform, and is uniformly scheduled and managed by the network management center. And the optical code which is sent to the fiber core of the specified optical cable is issued and managed by the network management center. After determining which optical fibers are connected with each other, the handheld light source and the optical code generator can send optical signals with stable optical power, the respective optical attenuation values of the optical fibers can be analyzed and calculated through the optical power values detected at the positions of the optical fiber joints connected in series in the downstream direction, whether the performance of the optical fiber is degraded or not can be judged through the attenuation values of the optical fibers, whether the optical fiber needs to be replaced in time or not can be judged, and the purposes of disposing in advance and avoiding communication faults are achieved.

Example 9:

and the optical fiber junction box comprises a novel bidirectional light splitting detection component and is used for detecting the fiber core resource of the optical cable. A fiber junction box contains N light splitting and photoelectric detection integrated novel bidirectional light splitting detection components.

Referring to fig. 10, the novel bidirectional spectroscopic detection assembly contains a spectroscopic plate and a photodiode. After light in the upper connection direction of one main light path is reflected by the light splitting sheet, 97% of reflected light is emitted from the lower connection direction, and 3% of incident light in the upper connection direction passes through the light splitting sheet and irradiates on a photosensitive surface of the photodiode; according to the principle that the light path is reversible, after incident light in the lower connection direction of the main light path is reflected by the light splitting sheet, 97% of reflected light is emitted from the upper connection direction, and 3% of light of the incident light in the lower connection direction is transmitted through the light splitting sheet to irradiate on a photosensitive surface of the photodiode. Therefore, 3% of incident light in the upper connection direction and 3% of incident light in the lower connection direction of one main light path are respectively irradiated on the photosensitive surface of the photodiode, and the photodiode converts the two paths of 3% of light into photocurrent.

The bidirectional light splitting detection component utilizes a light splitting piece to split light in two paths in a micro proportion respectively from the upper connection direction and the lower connection direction of a main light path, the two paths of split light are coupled and guided into the same photodiode, and the photodiode converts the light current into light current and sends the light current to a sampling plate through a wire cable; the sampling plate also supplies power to the photodiode through a wire cable.

The sampling plate is not provided with a photodiode, the sampling plate is connected with N optical fiber junction boxes containing novel bidirectional light splitting detection assemblies through N multi-core cable sockets, and the photodiode in the optical fiber junction boxes is used for sampling optical power and optical codes.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An optical signal extraction module is included, the optical signal extraction module includes a first optical interface and a second optical interface, the first optical interface and the second optical interface are used for connecting optical fibers in series, a plurality of light splitting pieces are arranged in the optical signal extraction module, and the light splitting pieces split optical signals for detection; the optical splitter comprises a plurality of optical splitting signal detection ports, wherein the optical splitting signal detection ports are arranged on the emission paths of optical signals split by the optical splitting sheets, and the optical splitting signal detection ports are connected with optical fibers or provided with photoelectric conversion devices.

2. The optical fiber cable core optical signal acquisition device according to claim 1, wherein the first optical interface and the second optical interface are arranged in series and in the same straight line, the spectroscope is arranged between the first optical interface and the second optical interface, and an included angle is formed between a perpendicular bisector of the spectroscope and an axis of the first optical interface and the axis of the second optical interface, so that the spectroscope reflects a portion of light emitted from the first optical interface or/and the second optical interface and emits the portion of light into the spectroscopic signal detection port; the reflectivity of the light splitting sheet is 1-5%, and the transmissivity of the light splitting sheet is 99-95%.

3. The optical fiber cable core optical signal acquisition device according to claim 1, wherein the first optical interface and the second optical interface are disposed adjacent to each other, a plurality of included angles are disposed between the first optical interface and the second optical interface, the beam splitter is disposed at an intersection of axes of the first optical interface and the second optical interface, and axes of the first optical interface and the second optical interface are symmetrical with respect to a perpendicular bisector of the beam splitter; the light splitting signal detection port is arranged on the other side of the light splitting sheet; the reflectivity of the light splitting sheet is 95-99%, and the transmissivity of the light splitting sheet is 1-5%.

4. An optical cable fiber core optical signal collector comprises the optical cable fiber core optical signal collecting device as claimed in claim 2 or 3, wherein an optical fiber plug is arranged on a first optical interface of the optical signal extraction module, and an optical fiber jack is arranged on a second optical interface of the optical signal extraction module; the optical cable core optical signal acquisition device comprises a serial bidirectional light splitting component, a serial light splitting component or a serial light splitting detection component.

5. An optical cable core resource detection device comprising the optical cable core optical signal collector of claim 4, comprising: the sampling plates are connected with the optical cable fiber core optical signal acquisition device through optical fibers or cables, and the sampling plates are used for preprocessing optical signals and/or electric signals; the sampling plate is connected with a back plate through a cable signal, and the back plate is used for collecting and forwarding signals collected by the sampling plate; the back plate is connected with a main control board through a cable signal; the main control board is connected with a communication device and is connected to the Ethernet through the communication device; the detection board is connected with the back board through signals, and the detection board is connected with the sampling board through signals of optical fibers.

6. The fiber optic cable core resource detection apparatus of claim 5, wherein said sampling plate comprises a plurality of multi-fiber connectors optically connected to said fiber optic cable core optical signal collection device or/and detection plate by optical fibers; the multi-core optical fiber connector is connected with a photoelectric conversion array, the photoelectric conversion array comprises a single-fiber optical receiving assembly or a double-fiber optical receiving assembly, the photoelectric conversion array is connected with an amplifying circuit, the amplifying circuit is connected with an optical power and optical code detection circuit, and the optical power and optical code detection circuit is electrically connected with a main processor.

7. The optical cable core resource detection device as claimed in claim 5, wherein the main control board comprises a multi-path optical power and optical coded data receiving and storing unit, a multi-path optical power comparison analysis and fault optical path positioning unit, a detection board optical coding control circuit, an alarm unit, and a processor; the multi-path optical power and optical coding data receiving and storing unit, the multi-path optical power comparison analysis and fault light path positioning unit, the detection board optical coding control circuit, the alarm unit and the communication unit are in signal connection with the processor.

8. The optical cable core resource detection apparatus as claimed in claim 5, wherein said detection board includes a control circuit, said control circuit being connected to a light source driving circuit, said light source driving circuit being connected to a laser; the optical fiber detection device comprises an optical cross network, wherein the optical cross network is connected with a laser and a sampling plate through an optical path, an OTDR optical time domain analysis module is arranged on the detection plate, and the OTDR optical time domain analysis module is used for detecting optical fiber damage points.

9. The optical cable core resource detection apparatus of claim 5, comprising: the handheld light source comprises a laser, a pulse light code generating circuit and a driving circuit, wherein the pulse light code generating circuit is connected with a laser signal through the driving circuit, the handheld light source comprises a communication module, and the handheld light source is in communication connection with the main control board through the communication module.

10. A fiber optic cable core resource testing platform comprising the fiber optic cable core resource testing device of any one of claims 5-9, comprising: the monitoring software system is arranged at the cloud end and comprises a user light path information database, installation and maintenance terminal management software, local side unified network management software and a database, wherein the user light path information database is distributed and stored in the optical cable fiber core resource detection equipment; and the monitoring software system is in signal connection with the optical cable fiber core resource detection equipment through a network.