WO2024021917A1

WO2024021917A1 - Signal transmission method and related module, and device and network

Info

Publication number: WO2024021917A1
Application number: PCT/CN2023/100511
Authority: WO
Inventors: 林华枫; 李书; 周恩宇
Original assignee: 华为技术有限公司
Priority date: 2022-07-28
Filing date: 2023-06-15
Publication date: 2024-02-01
Also published as: CN117478215A

Abstract

Disclosed in the embodiments of the present application are a signal transmission method and a related module, and a device and a network, which are used for reducing the operation and maintenance difficulty. The signal transmission method provided in the embodiments of the present application comprises: a first communication module sending a visible light signal and an invisible light signal to a second communication module, wherein the invisible light signal is used for transmitting service information, and the visible light signal is used for indicating at least one of the following: a fault state of an optical fiber between the first communication module and the second communication module, a communication state of the first communication module, and device information of the first communication module.

Description

A signal transmission method, related modules, equipment and network

This application requests the priority of the Chinese patent application filed with the State Intellectual Property Office of China on July 28, 2022, with the application number 202210899514.X and the application title "A signal transmission method, related modules, equipment and network", and Requests priority for the Chinese patent application filed with the State Intellectual Property Office of China on December 29, 2022, with application number 202211712737.7 and the application title "A signal transmission method, related modules, equipment and network", the entire content of which is incorporated by reference incorporated in this application.

Technical field

Embodiments of the present application relate to the field of optical communications, and in particular, to a signal transmission method, related modules, equipment and networks.

Background technique

In an optical communication network, optical signals are transmitted through optical transmitting components, optical fibers, and optical receiving components. Specifically, after the light transmitting component generates the optical signal, the optical signal is input into the optical fiber, and the optical signal is transmitted to the optical receiving component through the optical fiber to realize the transmission of the optical signal.

In order to implement operation and maintenance of optical communication networks, it is necessary to obtain the transmission status of optical signals in the optical communication network. Since the optical signal is transmitted inside the optical transmitting component, the optical fiber and the optical receiving component, a common method to obtain the transmission status is to insert test equipment into the transmission line of the optical signal (for example, at a certain point of the optical fiber, the port of the optical transmitting component , the port of the optical receiving component, etc.), and obtain the transmission status of the optical signal through the test equipment.

However, this method is cumbersome and inefficient. Moreover, the process of inserting test equipment will affect the transmission of optical signals.

Contents of the invention

Embodiments of the present application provide a signal transmission method, related modules, equipment and networks for reflecting optical fiber fault status, communication status, equipment information, etc. through visible light signals, thereby reducing the difficulty of operation and maintenance.

In a first aspect, embodiments of the present application provide a signal transmission method, which is applied to the first communication module. The signal transmission method provided by the embodiment of the present application includes: the first communication module sends a visible light signal to the second communication module. The visible light signal is used to indicate at least one of the following: the fault status of the optical fiber between the first communication module and the second communication module, the communication status of the first communication module, and the device information of the first communication module. The first communication module can also send an invisible light signal to the second communication module, and the invisible light signal is used to transmit business information.

In the embodiment of the present application, visible light signals are used to indicate the optical fiber fault status, communication status, equipment status, etc. related to the first communication module. Since visible light can be discerned by the human eye (or a sensor of the operation and maintenance system, such as a camera), the operation and maintenance personnel (or the operation and maintenance system) can determine the above-mentioned information related to the first communication module through visible light without inserting it into the network. Other devices are used to identify the above related information, which reduces the difficulty of operation and maintenance.

Optionally, in this embodiment of the present application, the wavelength of the visible light signal may be between 380nm and 780nm, and the wavelength of the invisible light signal may be less than 380nm or greater than 780nm.

In an optional implementation, the visible light signal includes a first visible light signal. The first visible light signal is used to detect the fault state of the optical fiber between the first communication module and the second communication module. Specifically, if there is no fault in the optical fiber, the visible light corresponding to the first visible light signal can be displayed on the second communication module. If the optical fiber fails, the first visible light signal can be displayed at the fault point of the optical fiber.

In the embodiment of the present application, the first visible light signal can represent the on-off status of the optical fiber. As long as the first visible light signal (or corresponding visible light) can be displayed at a point, it means that there is no fault in the optical fiber on the optical path before that point. . Therefore, the operation and maintenance personnel (or the operation and maintenance system) can determine that the optical fiber has not failed based on the visible light corresponding to the first visible light signal displayed at the second communication module; if the optical fiber fails (for example, leakage occurs at the fault point), the operation and maintenance personnel Maintenance personnel (or operation and maintenance systems) can determine the fault point of the optical fiber based on the location of the first visible light leakage. By determining the arrival position of the first visible light signal with the human eye (or the sensor of the operation and maintenance system), optical fiber troubleshooting can be realized without the need for other equipment or changes to the network, optical fiber, etc., making optical fiber troubleshooting easier. Easier.

Optionally, optical fiber failure may include connector disconnection, optical fiber breakage, excessive bending, etc., which is not limited in this application.

Optionally, the visible light corresponding to the first visible light signal may be the first visible light signal itself. In addition, it may also be in other forms, such as visible light obtained by downconverting the first visible light signal, visible light obtained by converting the first visible light, etc., which is not limited in this application.

In an optional implementation, the first communication module may send the first visible light signal according to instructions from the control device. Specifically, the first communication module may receive a first message from the control device, and the first message is used to instruct the first communication module to send the first visible light signal. Number.

In the embodiment of the present application, the control device is used to control the sending time, status, etc. of the first visible light signal, which can facilitate troubleshooting of the optical fiber.

Optionally, if the first communication module fails, the first communication module can also actively send the first visible light signal to implement communication fault troubleshooting.

Optionally, when the first communication module first connects to the network, the first communication module can also actively send the first visible light signal to implement troubleshooting of the optical fiber line.

In an optional implementation, the visible light signal may include a second visible light signal. The second visible light signal is used to indicate the communication status of the first communication module.

In this embodiment of the present application, the second visible light signal may represent the communication status of the first communication module. Since the second visible light signal is visible light, the operation and maintenance personnel (or the operation and maintenance system) can determine the communication status of the first communication module based on the second visible light signal (or visible light corresponding to the second visible light) displayed at the second communication module . The communication status of the first communication module can be determined through the human eye (or the sensor of the operation and maintenance system). There is no need to resort to other equipment or changes to the network, optical fiber, etc., making the acquisition of the communication status of the first communication module more convenient. Easy.

In an optional implementation, the communication status includes at least one of the following: whether the first communication module fails, fault information of the first communication module, and the working status of the first communication module.

Optionally, the fault information may include the fault type, the time when the fault occurred, etc., which is not limited in this application.

In an optional implementation, the first communication module can send the second visible light signal according to instructions from the control device. Specifically, the first communication module may receive a second message from the control device, and the second message is used to instruct the first communication module to send a second visible light signal.

In the embodiment of the present application, the control device is used to control the second visible light transmission time, status, etc., which can facilitate the acquisition of the communication status of the first communication module.

In an optional implementation, the first communication module can actively send the second visible light signal when a fault occurs. Specifically, if the first communication module determines that the first communication module is faulty, the first communication module may send a second visible light signal to the second communication module.

Optionally, in addition to sending the second visible light, when the first communication module determines that the first communication module is faulty, the first communication module can also send the first visible light and/or the third visible light, which is not limited in this application. .

In the embodiment of the present application, a failure of the first communication module includes a failure of the first communication module itself, a failure of communication of the first communication module, etc. This application does not limit this. The communication failure of the first communication module includes a communication failure between the first communication module and the second communication module, the first communication module being offline, etc. This application does not limit this.

In this embodiment of the present application, the first communication module can communicate with the third communication module through the second communication module. For example, the first communication module (ONU) and the third communication module (OLT) communicate through the second communication module ( optical splitter) to communicate. According to the communication failure between the first communication module and the second communication module, the first communication module can determine that the communication between the first communication module and the third communication module has failed, thereby sending the visible light signal (the first visible light signal, the second visible light signal and at least one of the third visible light signals). For example, the first communication module (ONU) can determine that the communication between the ONU and the third communication module (OLT) has failed based on the failure of communication with the second communication module (optical splitter), thereby sending a visible light signal.

In the embodiment of the present application, the first communication module actively sends the second visible light after determining that a fault has occurred, and can promptly transmit the (faulty) communication status of the first communication module to the second communication module, thereby timely releasing the first communication module. Communication failure reduces the duration of communication failure in the first communication module.

Optionally, when the first communication module first accesses the network, the first communication module may also actively send a second visible light signal to indicate the communication status of the first communication module.

In an optional implementation, the visible light signal may include a third visible light signal. The third visible light signal is used to indicate device information of the first communication module.

In this embodiment of the present application, the third visible light signal may represent the device information of the first communication module. Since the third visible light signal is visible light, the operation and maintenance personnel (or the operation and maintenance system) can determine the device information of the first communication module based on the third visible light signal (or visible light corresponding to the third visible light) displayed at the second communication module . The equipment information of the first communication module can be determined through the human eye (or the sensor of the operation and maintenance system). There is no need to use other equipment or make changes to the network, optical fiber, etc., making the acquisition of the equipment information of the first communication module more convenient. Easy.

In an optional implementation, the first communication module may send the third visible light signal according to instructions from the control device. Specifically, the first communication module may receive a third message from the control device, and the third message is used to instruct the first communication module to send a third visible light signal. Number.

In the embodiment of the present application, by controlling the third visible light transmission time, status, etc., through the control device, the acquisition of the device information of the first communication module can be facilitated.

In an optional implementation, the first communication module may actively send the third visible light signal when a communication failure occurs. Specifically, if the first communication module determines that the first communication module is faulty, the first communication module may send a third visible light signal to the second communication module to indicate the device information of the first communication module.

Optionally, when the first communication module first accesses the network, the first communication module may also actively send a third visible light signal to indicate the device information of the first communication module.

In an optional implementation manner, the first visible light signal, the second visible light signal and the third visible light signal may include direct current light or alternating current light.

In the embodiment of the present application, if the visible light signal is DC light, the modulation process for obtaining the visible light signal is simple, which can save modulation, storage, computing and other resources consumed by the first communication module for obtaining the visible light signal. If the visible light signal is AC light, more information can be carried in the visible light signal and more information (such as fiber fault status, communication status, equipment information, etc.) can be transmitted through the visible light signal.

In an optional implementation, the modulation frequency of the AC light is lower than 1 GHz. Optionally, the modulation frequency of the AC light may be a*10^nHz, where 1≤a<10 and n≤2.

If the modulation frequency of the AC light is a*10^nHz, the modulation frequency (flicker frequency) of the AC light can be identified by the human eye, and the information carried by the AC light can be determined without processing the AC light.

In an optional implementation, the first communication module can send visible light signals in any of the following situations: sending according to the control message from the control device, sending when the first communication module is judged to be faulty, or automatically sending when going online. etc. This application does not limit this.

Optionally, if the first communication module sends different visible light signals according to different control messages from the control device. For example, a first visible light signal is sent according to a first message from the control device, a second visible light signal is sent according to a second message from the control device, and a third visible light signal is sent according to a third message from the control device.

In an optional implementation manner, the control device includes any one of the following: a central office communication module, a peer communication module of the first communication module, a user terminal device, and the first communication module.

In the embodiment of the present application, different devices are used to control the first communication module to send visible light signals, which can be done in different network connection modes (such as point-to-multipoint network between the central office communication module and the first communication module, point-to-point network between the central office communication module and the first communication module, etc. point-to-point network between the end communication module and the first communication module, etc.), and the acquisition of the optical fiber fault, communication status, equipment information, etc. of the first communication module is triggered by different devices, enriching the applicability of the embodiments of the present application. The scenario improves the practicality of the embodiments of this application.

Optionally, if the first communication module sends a visible light signal when it determines that the first communication module is faulty, then any of the following situations occurs, and the first communication module can determine that the first communication module is faulty: the first communication module itself Failure occurs, communication failure of the first communication module, etc. This application does not limit this. Where the communication failure of the first communication module may include a communication failure between the first communication module and the second communication module.

In a second aspect, embodiments of the present application provide a data transmission method, which is applied to the second communication module. The signal transmission method provided by the embodiment of the present application includes: the second communication module receives the visible light signal and the invisible light signal from the first communication module. Wherein, the invisible light signal is used to transmit business information, and the visible light signal is used to indicate at least one of the following: the fault status of the optical fiber between the first communication module and the second communication module, the communication status of the first communication module and the first communication module device information. Then, the second communication module can display visible light corresponding to the visible light signal and transparently transmit the invisible light signal.

In an optional implementation, the visible light signal includes a first visible light signal. The first visible light signal is used to detect the fault state of the optical fiber between the first communication module and the second communication module. If there is no fault in the optical fiber, the second communication module can display the visible light corresponding to the first visible light signal.

In an optional implementation, the visible light signal includes a second visible light signal. The second visible light signal is used to indicate the communication status of the first communication module.

In an optional implementation, the visible light signal includes a third visible light signal. The third visible light signal is used to indicate device information of the first communication module.

In an optional implementation manner, the first visible light signal, the second visible light signal and the third visible light signal include at least one of direct current light and alternating current light.

In an optional implementation, the visible light signal is sent by the first communication module according to at least one of the following: the first communication module receives a control message from the control device, the control message is used to instruct the first communication module to send the visible light signal ; The first communication module determines that the first communication module is faulty; the first communication module sends an online request to the second communication module.

For the beneficial effects of the second aspect, please refer to the first aspect and will not be described again here.

In the third aspect, embodiments of the present application provide a data transmission method, which is applied to control equipment. The signal transmission method provided by the embodiment of the present application includes: the control device sends a control message to the first communication module, and the control message is used to instruct the first communication module to send a visible light signal. Wherein, the visible light signal is used to indicate at least one of the following: the fault status of the optical fiber between the first communication module and the second communication module, the communication status of the first communication module, and the device information of the first communication module.

In an optional implementation manner, the control message includes at least one of a first message, a second message, and a third message. The first message is used to instruct the first communication module to send a first visible light signal, and the first visible light signal is used to detect the fault state of the optical fiber between the first communication module and the second communication module. The second message is used to instruct the first communication module to send a second visible light signal, and the second visible light signal is used to indicate the communication status of the first communication module. The third message is used to instruct the first communication module to send a third visible light signal, and the third visible light signal is used to indicate device information of the first communication module.

In an optional implementation manner, the control device includes a central office communication module or a counterpart communication module of the first communication module. The control device may receive a request message from the user terminal device. The request message is used to instruct the control device to obtain at least one of the following: the fault status of the optical fiber between the first communication module and the second communication module, the communication status of the first communication module, and Device information of the first communication module. Then, the control device may send a control message to the first communication module according to the request message.

In the embodiment of the present application, in communication networks such as point-to-multipoint (for example, the control device is a central office communication module), point-to-point communication (for example, the control device is a peer communication module), the control device is used to realize communication between user terminal devices. The first communication module sends visible light signals for control. There is no need to change the network architecture or add new equipment to control visible light signals, and it will cause little change to the existing network.

In an optional implementation, the second communication module is connected to the first communication module through a second communication port, and the second communication port includes indication information of the first communication module. Control equipment includes user terminal equipment. The user terminal device can obtain the indication information of the first communication module. Then, the user terminal device may send a control message to the first communication module according to the instruction information of the first communication module.

In this embodiment of the present application, the user terminal device can interact with the first communication module through the instruction information of the first communication module on the second communication module to control the visible light signal sent by the first communication module. This solution does not require other equipment to convey the control instructions of the user terminal equipment, and the control process has a small delay.

In an optional implementation, the control device includes a first communication module. The control device may send a control message to the visible light component of the first communication module according to user operation to instruct the visible light component to send the above visible light signal.

For example, the control device may include a physical switch on the first communication module, and the control device may generate a control message according to the user's operation of the physical switch (such as closing the switch, pressing a key switch, etc.) to control the visible light component to send the visible light signal.

In the embodiment of the present application, through the control device on the first communication module, the control of the visible light signal transmission by the first communication module is realized, which expands the application scenarios.

Optionally, if the control device determines that the first communication module is offline, the control module may send a control message to the first communication module to instruct the visible light component to send the above visible light signal.

In this embodiment of the present application, when the control device discovers that the first communication module is offline, it controls the first communication module to send a visible light signal, which can promptly troubleshoot and reduce the duration of the first communication module being offline.

Optionally, the indication information of the first communication module may include a QR code, a barcode, an image identifier, etc., used to indicate the information of the first module (such as network topology, media access control (media access control, MAC) address, etc. ), the control device can interact with the first communication module according to the instruction information, thereby controlling the first communication module to send a visible light signal (including the first, second or third visible light signal).

In an optional implementation manner, the user terminal device can obtain the user instruction, and thereby send the control message to the first communication module according to the user instruction and the instruction information of the first communication module.

Optionally, the user instructions may include instructions for at least one of the following: detecting optical fiber faults, determining the communication status of the first communication module, obtaining device information of the first communication module, etc., which is not limited in this application.

In a fourth aspect, embodiments of the present application provide a first communication module. The first communication module includes a visible light component and a first communication port. Among them, the visible light component is used to generate visible light signals. The visible light signal is used to indicate at least one of the following: the fault status of the optical fiber between the first communication module and the second communication module, the communication status of the first communication module, and the device information of the first communication module. The first communication port is used to send visible light signals to the second communication module. The first communication module is used to implement the method described in the first aspect.

In an optional implementation, the first communication module further includes an invisible light component, the invisible light component is used to generate an invisible light signal, and the invisible light signal is used to transmit business information. In the embodiment of this application, invisible light signals are also called communication light signals.

Optionally, the invisible light component can be integrated and packaged with the visible light component.

Optionally, the first communication module may also include a multiplexer, which is used to multiplex the communication optical signal and the visible light signal, and input the multiplexed optical signal into the first communication port.

In a fifth aspect, embodiments of the present application provide a second communication module. The second communication module includes a second communication port and a display unit. The second communication port is used to receive visible light signals and invisible light signals from the first communication module. Among them, invisible light signals are used to transmit business information. The visible light signal is used to indicate at least one of the following: the fault status of the optical fiber between the first communication module and the second communication module, the communication status of the first communication module, and the device information of the first communication module. The display unit is used to display visible light corresponding to the visible light signal. The second communication module is used to implement the method described in the second aspect.

In a sixth aspect, embodiments of the present application provide a control device. The control device includes a sending unit configured to send a control message to the first communication module. The control message is used to instruct the first communication module to send a visible light signal. The visible light signal is used to indicate at least one of the following: the fault status of the optical fiber between the first communication module and the second communication module, the communication status of the first communication module, and the device information of the first communication module.

Optionally, the control message may include at least one of the first message, the second message and the third message.

In an optional implementation manner, the control device includes the central office communication module or the opposite end communication module of the first communication module. The control device also includes a receiving unit configured to receive a request message from the user terminal device. The request message is used to instruct the control device to obtain at least one of the following: the fault status of the optical fiber between the first communication module and the second communication module, the communication status of the first communication module, and the device information of the first communication module. The sending unit is specifically configured to send a control message to the first communication module according to the request message.

In an optional implementation manner, the control device includes a user terminal device, and the user terminal device also includes a collection unit. The collection unit is used to obtain indication information of the first communication module. The sending unit of the user terminal device is specifically configured to send a control message to the first communication module according to the instruction information of the first communication module.

In an optional implementation, the control device can also be a sending unit on the first communication module. The first communication module can also include a visible light component. The sending unit is used to send a control message to the visible light component according to user operation. The control The message is used to control the visible light component to emit visible light signals. For example, the sending unit may include a physical switch on the first control module, and generate the control message according to the user's operation on the physical switch (such as closing the switch, pressing a key switch, etc.). The sending unit sends the control message to the visible light component, thereby controlling the visible light component to send the visible light signal.

In a seventh aspect, embodiments of the present application provide an optical communication network. The optical communication network includes the first communication module described in the third aspect and the second communication module described in the fourth aspect. The optical communication network is used to implement the methods described in the first to third aspects.

In an optional implementation manner, the optical communication network further includes the control device described in the sixth aspect.

In an optional implementation, the second communication module is connected to the first communication module through a second communication port, and the second communication port includes indication information of the first communication module.

For the beneficial effects of the fourth to seventh aspects, please refer to the first to third aspects, and will not be described again here.

Description of drawings

Figure 1 is a schematic structural diagram of the optical communication network of the present application;

Figure 2a is a schematic diagram of the point-to-multipoint network architecture of the optical communication network of the present application;

Figure 2b is a schematic diagram of the point-to-point network architecture of the optical communication network of the present application;

Figure 3 is a flow chart of a signal transmission method provided by an embodiment of the present application;

Figure 4 is a schematic diagram of the application of the first visible light signal provided by the embodiment of the present application;

Figure 5 is a schematic diagram of a transmission method for signal interaction with user terminal equipment provided by an embodiment of the present application;

Figure 6 is a schematic diagram of an interactive interface of a user terminal device provided by an embodiment of the present application;

Figure 7 is a schematic diagram of the application of the second visible light signal provided by the embodiment of the present application;

Figure 8 is a schematic diagram of the application of the third visible light signal provided by the embodiment of the present application;

Figure 9 is a schematic structural diagram of the first communication module provided by the embodiment of the present application;

Figure 10 is a schematic structural diagram of the second communication module provided by the embodiment of the present application;

Figure 11 is a schematic structural diagram of a control device provided by an embodiment of the present application.

Detailed ways

The embodiments of the present application are described below with reference to the accompanying drawings. Persons of ordinary skill in the art know that with the development of technology and the emergence of new scenarios, the technical solutions provided in the embodiments of this application are also applicable to similar technical problems.

The terms "first", "second", etc. in the description and claims of this application and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that the terms so used are interchangeable under appropriate circumstances, and are merely a way of distinguishing objects with the same attributes in describing the embodiments of the present application. Furthermore, the terms "include" and "have" and any variations thereof, are intended to cover non-exclusive inclusion, such that a process, method, system, product or apparatus comprising a series of elements need not be limited to those elements but may include none Other elements that are clearly listed or inherent to such processes, methods, products or equipment. In addition, "at least one" means one or more, and "plurality" means two or more. "And/or" describes the association of associated objects, indicating that there can be three relationships, for example, A and/or B, which can mean: A exists alone, A and B exist simultaneously, and B exists alone, where A, B can be singular or plural. The character "/" generally indicates that the related objects are in an "or" relationship. "At least one of the following" or similar expressions thereof refers to any combination of these items, including any combination of a single item (items) or a plurality of items (items). For example, at least one of a, b, or c can mean: a, b, c, a-b, a-c, b-c, or a-b-c, where a, b, c can be single or multiple .

Figure 1 is a schematic diagram of the optical communication network of the present application. As shown in Figure 1, the optical communication network includes an optical transmitter, an optical receiver and an optical fiber. The optical transmitter and the optical receiver are connected through an optical fiber. The optical transmitter may include a light transmitting component (transmit, Tx), which is used to perform electro-optical modulation to carry data in the optical signal. The optical signal is transmitted to the optical receiver via optical fiber. The optical receiver may include an optical receiving component (receive, Rx), which is used to demodulate the optical signal and analyze the data carried in the optical signal. Through the network shown in Figure 1, data transmission can be achieved.

Optionally, in addition to optical fibers, optical amplifiers, demultiplexers, combiners, and reconfigurable optical add-drop multiplexers can be included between the optical transmitter and the optical receiver (that is, on the transmission path of the optical signal). (reconfigurable optical add-drop multiplexer, ROADM), etc., this application does not limit this.

Optionally, the optical transmission network of this application can have a variety of architectures, such as point-to-multipoint network architecture, point-to-point network architecture, etc. This application does not limit this.

Optical transport network (OTN) is a typical example of point-to-multipoint network architecture. As shown in Figure 2a, the OTN network includes optical line terminal (OLT), optical distribution network (ODN) and optical network unit (ONU). ODN includes optical fibers and optical splitters. The optical splitters include multiple ports, and each port is used to connect an optical network unit ONU.

Among them, the OLT can communicate with any ONU through the optical distribution network. Both OLT and ONU include optical transmitting components and optical receiving components, so OTN can realize two-way communication between OLT and ONU. In the case where optical signals are transmitted from the OLT to the ONU, the OLT can serve as the optical transmitter in Figure 1, and the ONU can serve as the optical receiver in Figure 1. When optical signals are transmitted from ONU to OLT, ONU can serve as the optical transmitter in Figure 1, and OLT can serve as the optical receiver in Figure 1.

Optionally, the OLT may include a frame device and an optical module. The frame device is used to carry the optical module, and the optical module is used to transmit and receive optical signals. Optionally, ONU may include box terminals, optical modules (small form pluggable, SFP) and other equipment forms, which are not limited in this application.

Data communications networks are a classic example of point-to-point network architecture. As shown in Figure 2b, the data communication network includes multiple optical switches, such as switch 1 and switch 2 in the figure. Each switch includes one or more optical modules. Optical modules are used to transmit and receive optical signals. Light The module includes an optical transmitting component and an optical receiving component, which are respectively used to transmit and receive optical signals. For example, the optical module 1 in the switch 1 can generate an optical signal through the optical transmitting component 1, and input the optical signal into the optical fiber 1, so that the optical signal is transmitted to the optical receiving component 2 of the switch 2, thereby realizing the optical signal from the switch 1 to the switch. 2 transmission.

It is worth noting that the network architecture shown in FIG. 2a and FIG. 2b is only an example of the optical communication network of the present application, and does not limit the architecture of the optical communication network of the present application.

In the optical communication network described in Figures 1 to 2b, optical signals are transmitted within the optical transmitting component, the optical fiber and the optical receiving component. In order to implement operation and maintenance of optical communication networks, it is necessary to obtain the transmission status of optical signals in the optical communication network. A common method is to insert test equipment into the optical signal transmission line (for example, insert it at a certain point of the optical fiber, the port of the optical transmitting component, the port of the optical receiving component, etc.), and obtain the transmission status of the optical signal through the testing equipment. However, this method is cumbersome and inefficient. Moreover, the process of inserting test equipment will affect the transmission of optical signals.

In order to solve the above defects, embodiments of the present application provide a signal transmission method, related modules, equipment, and networks. The signal transmission method provided by the embodiment of the present application uses visible light signals to realize the transmission of communication-related information in the optical communication network. This makes the communication-related information of the optical communication network visible, reduces the difficulty of obtaining communication-related information, and reduces the difficulty of operation and maintenance.

As shown in Figure 3, the process of the signal transmission method provided by the embodiment of the present application includes:

301. The first communication module sends a visible light signal and an invisible light signal to the second communication module; wherein the invisible light signal is used to transmit business information, and the visible light signal is used to indicate at least one of the following: the first communication module and the second communication module between the fault status of the optical fiber, the communication status of the first communication module and the device information of the first communication module; the second communication module receives the visible light signal from the first communication module.

The first communication module and the second communication module are connected through optical fibers, and the first communication module can send optical signals to the second communication module through optical fibers. Through the optical fiber, the first communication module can not only send communication light signals to the second communication module, but also send visible light signals to the second communication module.

The visible light signal is used to indicate communication-related information in the optical communication network, and the communication-related information is information related to the optical signal transmission by the first communication module. For example, the communication-related information may include the fault status of the optical fiber between the first communication module and the second communication module. In addition, other information may also be included, such as the communication status of the first communication module and the device information of the first communication module. etc. This application does not limit this.

The first communication module inputs the visible light signal carrying communication-related information into the optical fiber, and the visible light signal is transmitted to the second communication module through the optical fiber, and the second communication module can receive the visible light signal.

302. The second communication module displays the visible light corresponding to the visible light signal and transparently transmits the invisible light signal.

After receiving the visible light signal and the invisible light signal from the first communication module, the second communication module can display the visible light corresponding to the visible light signal and transparently transmit the invisible light signal. This visible light can be discerned by the human eye (or the sensor of the operation and maintenance system), and the operation and maintenance personnel (or the operation and maintenance system) can determine the communication-related information (carried in the visible light signal) based on the visible light. The communication-related information is information related to the optical signal transmission by the first communication module. The operation and maintenance of the optical communication network can be implemented based on the communication-related information.

Optionally, the visible light signal may be direct current light (ie, always bright light) or alternating current light (ie, flashing light signal). Optionally, in order to distinguish it from communication light signals, the modulation frequency (ie, flicker frequency) of AC light (visible light signal) is lower than 1 GHz. Optionally, the modulation frequency of AC light can be a*10^nHz. Among them, 1≤a<10, n≤2.

Optionally, the visible light corresponding to the visible light signal may be the visible light signal itself, or the visible light generated based on the visible light signal, or the visible light obtained by processing the visible light signal (such as frequency reduction), etc. This application does not do this. limited.

The second communication module may include a display unit configured to display visible light corresponding to the visible light signal. Optionally, after receiving the visible light signal, the second communication module can directly display the visible light signal on the display unit. Optionally, if the flicker frequency of the visible light signal exceeds the frequency that the human eye can discern, the second communication module can reduce the frequency of the visible light signal to obtain visible light, and display the visible light on the display unit. Optionally, the second communication module can also determine the communication-related information carried by the visible light signal based on the flashing frequency, color and other information of the visible light signal, and display the display content corresponding to the communication-related information on the display unit (for example, display "Fiber optic "Fault"), or lighting up the display unit corresponding to the communication-related information, etc. This application does not limit this.

Optionally, the display unit may be a display light, or may be in other forms, such as a transparent area through which the visible light signal in the optical fiber can be discerned by the human eye (or the sensor of the operation and maintenance system).

In the embodiment of this application, the operation and maintenance of the optical communication network can be implemented by different entities, such as operation and maintenance personnel or operation and maintenance systems, etc. This application does not limit this. For example, operation and maintenance personnel can identify the visible light displayed by the second communication module and determine the communication-related information carried in the visible light, thereby realizing operation and maintenance of the optical communication network. For example, the visible light can also be identified through the sensor of the operation and maintenance system, and the communication-related information carried in the visible light can be determined by the operation and maintenance system, thereby realizing automated operation and maintenance of the optical communication network. This application is not limited to this. Certainly.

In this embodiment of the present application, communication-related information (information related to optical signal transmission by the first communication module) is carried in the visible light signal and transmitted to the second communication module. The second communication module displays the communication-related information carried in the visible light signal in the form of visible light that can be discerned by the human eye (or the sensor of the operation and maintenance system). The operation and maintenance personnel (or the operation and maintenance system) can directly determine the communication-related information based on the visible light. Test equipment needs to be inserted into the network to determine communication-related information, which reduces the difficulty of obtaining communication-related information, thereby reducing the difficulty of operation and maintenance.

Optionally, the first communication module and the second communication module in Figure 3 can be the optical receiver and optical transmitter in Figure 1 respectively, and transmit communication-related information of the optical transmitter through visible light signals.

Optionally, in the network of Figure 2a, the first communication module may be an OLT, and the second communication module may be an optical splitter connected to the OLT through optical fiber; or, the first communication module may be an ONU, and the second communication module may be Optical splitter connected to the ONU through optical fiber.

Optionally, in the network of Figure 2b, the first communication module and the second communication module may be two optical modules connected through optical fibers (for example, optical module 1 and optical module 2 in the figure).

In this embodiment of the present application, visible light signals may be used to indicate communication-related information, that is, information related to optical signal transmission by the first communication module. In the embodiment of the present application, communication-related information can be classified, so that visible light signals can be divided into different types according to different indicated communication-related information. Optionally, the communication-related information may include the fault status of the optical fiber between the first communication module and the second communication module, the communication status of the first communication module, the device information of the first communication module, etc., which will be described next.

1. Communication-related information includes the fault status of the optical fiber between the first communication module and the second communication module.

In this embodiment of the present application, the visible light signal may include a first visible light signal. The first optical signal is used to indicate the fault status of the optical fiber between the first communication module and the second communication module. The first visible light signal is used to implement the first communication. Fault detection of the optical fiber between the module and the second communication module.

For example, as shown in Figure 4, if the first communication module is an ONU, the second communication module is an optical splitter connected to the ONU in the ODN. When determining the fault status of the optical fiber between the ONU and the optical splitter, the ONU can input the first visible light signal into the optical fiber. The second communication module includes a display unit. If the optical fiber does not fail, the second communication module can receive the first visible light signal and the display unit lights up. Operation and maintenance personnel (or sensors) can confirm that the optical fiber is not faulty based on the display unit lighting up.

If the optical fiber fails, the second communication module cannot receive the first visible light signal. Operation and maintenance personnel (or sensors) can determine that the optical fiber is faulty according to the display unit turning off. Since the first visible light signal can be distinguished by the human eye (or sensor), the fault point of the optical fiber can be determined based on the leakage position of the first visible light signal, and troubleshooting of the optical fiber path can be achieved.

For example, if the first visible light signal is green DC light, if the optical fiber fails, the operation and maintenance personnel can find a green light-emitting point on the optical fiber line, which is the leakage point of the first visible light. Operation and maintenance personnel can determine the fault point of the optical fiber based on the leakage point.

For example, multiple sensors can be arranged at intervals on the optical fiber line, and the sensors are used to identify whether there is visible light in the optical fiber (for example, the optical fiber is transparent and the camera is used as a sensor). In the event of an optical fiber failure, some sensors in the optical fiber line can detect visible light, and some sensors cannot detect visible light. Then the operation and maintenance system can determine that the fault point is between the two adjacent sensors based on the difference in the visible light status of the two adjacent sensors (one is on and the other is not on).

In the embodiment of this application, the form of the first visible light signal is not limited. The first visible light signal may be DC light, AC light, etc., or may be red, green or other colors of light. This application does not limit this.

Optionally, the second communication module can directly display the first visible light, or can process the first visible light signal and display the corresponding visible light on the display unit. For example, the display unit may include lights of different colors, wherein the green light turns on and off to indicate a fault condition of the optical fiber. If the second communication module receives a visible light signal, it means that the optical fiber is not faulty (if a fault occurs, any form of visible light signal cannot be transmitted to the second communication module), and the second communication module can turn on a green light, indicating that the optical fiber is not faulty. Fault.

Optionally, the first communication module can send the first visible light signal in different scenarios, such as automatically sending it when going online, sending it when it is determined that the first communication module is faulty, or sending it according to the instructions of the control device, etc. Let’s expand on the explanation:

Optionally, the first communication module can automatically send the first visible light signal when going online. For example, when the first communication module sends an online request to the second communication module, it can send the first visible light signal to the second communication module. For example, if the second communication module is an optical splitter including multiple ports, each port is connected to an ONU. Then for any port in the second communication module, if it is determined that the first visible light signal is received on the port, it can be confirmed that the optical fiber corresponding to the port is not faulty, and the green light of the port is turned on, indicating that the optical fiber corresponding to the port is not faulty. malfunction. If a certain port in the second communication module is connected to an optical fiber and the green light does not turn on, it means that the optical fiber corresponding to the port is faulty.

Optionally, the first communication module may send the first visible light signal when it is determined that the first communication module fails. Among them, the first Failure of the communication module may include failure of the first communication module itself, failure of communication of the first communication module, etc. For example, if the first communication module experiences packet loss, laser failure, disconnection, receiving end failure, etc., the first communication module can actively send a first optical signal to the second communication module, and use the first optical signal to indicate the first Whether the optical fiber between the communication module and the second communication module is faulty.

Optionally, the first communication module can also send the first visible light signal according to the instruction of the control device. For example, as shown in Figure 5, the second communication module may include multiple ports for connecting different first communication modules. Each port includes a barcode, which is indication information of the first communication module connected to the port (such as the MAC address of the first communication module, network topology, etc.). Operation and maintenance personnel can collect the barcode through the user terminal device and identify the first communication module corresponding to the port (for example, in the figure, by scanning barcode 3, it is determined that the first communication module corresponding to the port is ONU 3). Then, the user terminal device can send a first message to the first communication module corresponding to the port, where the first message is used to instruct the first communication module to send the first visible light signal. In this case, the user terminal device implements control of the first communication module to send the first visible light signal, so in this case the user terminal device is also called a control device.

In this embodiment and all subsequent embodiments, the user terminal device may optionally send the first message to the first communication module through wireless means. Optional user terminal equipment may be a mobile phone, a personal digital assistant (PDA), a personal computer (PC), a dedicated operation and maintenance terminal, etc. This application does not limit this. The barcode is only one example of indication information for the first communication module included on the second communication module. In addition to barcodes, the instruction information of the first communication module can also be in the form of QR codes, text, etc., which is not limited in this application.

Optionally, after the user terminal device obtains the indication information of the first communication module corresponding to the port, the user terminal device may automatically send the first message to the first communication module, or may send the first message according to user instructions. For example, as shown in Figure 5, the user terminal device obtains the information of the first communication module corresponding to the port (such as the MAC address of ONU 3), and can display the interface shown in Figure 6, which includes an "optical fiber fault test" control. If the user selects this control, the user terminal device receives the user instruction to perform optical fiber fault testing, thereby sending the first message to ONU 3 to implement fault testing of the optical fiber between the optical splitter and ONU 3.

Optionally, after the user terminal device obtains the information of the first communication module corresponding to the port, the user terminal device can request the central office communication module or the peer communication module of the first communication module to control the first communication module to send the first visible light. Signal.

For example, in a point-to-multipoint network, if the user terminal device determines that the first communication module corresponding to the port is ONU 3, it can send a request message to the OLT (central office communication module). The request message is used to request the OLT to obtain the optical splitter and The fault status of the optical fiber between ONU 3. The OLT sends the first message to ONU 3 according to the request message. In this case, the OLT controls the first communication module to send the first visible light signal, so in this case the OLT is also called a control device.

For example, in a point-to-point network (such as the architecture shown in Figure 2b), the user terminal equipment determines that the first communication module corresponding to the port is optical module 2, and can send a request to the peer communication module of the first communication module (optical module 2). (Optical module 1) sends a request message, which is used to request the optical module 1 to obtain the fault status of the optical fiber between the optical module 2 and the optical module 1. The optical module 1 sends the first message to the optical module 2 according to the request message. In this case, the optical module 1 controls the first communication module to send the first visible light signal, so in this case the optical module 1 (the opposite communication module of the first communication module) is also called a control device.

Optionally, the control device can also be a sending unit on the first communication module. The first communication module can also include a visible light component. The sending unit is used to send a first message to the visible light component. The first message is used to control the visible light component to send out The first visible light signal. For example, the sending unit may include a physical switch on the first control module, and the sending unit may generate a control message according to the user's operation on the physical switch (such as closing the switch, pressing a key switch, etc.), and the control message may be the first message. The sending unit sends the first message to the visible light component, thereby controlling the visible light component to send the first visible light signal.

In this embodiment of the present application, in addition to the fault status of the optical fiber between the first communication module and the second communication module, the communication-related information may also include the communication status of the first communication module.

2. The communication-related information includes the communication status of the first communication module.

In this embodiment of the present application, the visible light signal may include a second visible light signal. The second visible light signal is used to indicate the communication status of the first communication module. The second visible light signal is used to implement communication troubleshooting and fault indication of the first communication module. and representation, etc.

For example, as shown in Figure 7, if the first communication module is ONU 3, the second communication module is an optical splitter connected to the ONU in the ODN. In the case of judging the communication status of ONU 3, ONU can input the second visible light signal into optical fiber 3.

Optionally, the communication status of the first communication module carried in the second visible light signal may include whether the first communication module fails, fault information of the first communication module, and the working status of the first communication module.

For example, if the communication status includes whether the first communication module fails, the failure of the first communication device may be indicated by a second visible light signal of a target color (eg, red).

For example, if the first communication module fails, different types of communication can be represented by second visible light signals with different flashing frequencies. Failure (such as packet loss, laser failure, disconnection, receiving end failure, etc.). Optionally, if multiple communication failures occur simultaneously, the second visible light signal may be a superposition of light signals with different flicker frequencies. For example, if a single flash of the first frequency indicates packet loss and a double flash of the second frequency indicates a laser failure, the first visible light signal may be represented by a second visible light signal including a single flash of the first frequency and a double flash of the second frequency of red light. The communication module experiences packet loss and laser failure.

For example, if the communication state includes the working state of the first communication module, such as sleep, online registration, normal communication and other states. The specific working status can be represented by a special mark in the second visible light signal. For example, a DC light signal of 3 seconds can be used to indicate sleep, a DC light signal of 4 seconds can be used to indicate online registration, a DC light signal of 5 seconds can be used to indicate normal communication, etc. This application does not limit this.

It is worth noting that the above description of the color, flashing frequency, etc. of the second visible light signal is only an example. The second visible light signal can also represent the corresponding communication status in other forms, such as expressing fault information through color, through The flashing frequency indicates the working status, etc., which is not limited in this application.

For example, the second visible light signal shown in FIG. 7 may be red AC light flashing at the first frequency, indicating that the first communication module is faulty.

Optionally, the first communication module can send the second visible light signal in different scenarios, such as automatically sending it when going online, sending it when it is determined that the first communication module is faulty, or sending it according to the instructions of the control device, etc. Let’s expand on the explanation:

Optionally, the first communication module can automatically send a second visible light signal when going online to indicate the communication status between the first communication module and the second communication module. For example, when the first communication module sends an online request to the second communication module, it can send the second visible light signal to the second communication module.

Optionally, the first communication module may send the second visible light signal when it is determined that the first communication module fails. The failure of the first communication module includes failure of the first communication module itself, failure of communication of the first communication module, etc. This application does not limit this. Wherein, the communication failure of the first communication module includes the communication failure between the first communication module and the second communication module.

For example, if the first communication module experiences packet loss, laser failure, disconnection, receiving end failure, etc., the first communication module can actively send a second optical signal to the second communication module. The second optical signal includes the first frequency flicker. The optical signal is used to indicate that a malfunction occurs in the first communication module.

For example, if the first communication module includes multiple communication ports, one of the communication ports is connected to the second communication module to achieve communication with the third communication module. If the communication of the port fails, it can be determined that the communication with the second communication module fails, and thus the communication with the third communication module fails. The first communication module can troubleshoot communication between the first communication module and the second communication module by sending a second visible light signal, thereby restoring communication with the second communication module. Optionally, if a communication failure between the first communication module and the third communication module occurs between the second communication module and the third communication module, the operation and maintenance personnel can also display the second visible light signal on the second communication module. The corresponding visible light at the module determines that a communication failure occurs between the first communication module and the third communication module, thereby troubleshooting the communication failure between the third communication module and the second communication module.

The third communication module may be a central office communication module, a peer communication module of the first communication module, etc., which is not limited in this application.

Optionally, the first communication module can also send the second visible light signal according to the instruction of the control device. For example, as shown in Figure 7, the operation and maintenance personnel can collect the barcode corresponding to the port through the user terminal device and identify the first communication module connected to the port (for example, in the figure, the first communication module corresponding to the port is determined by scanning barcode 3 for ONU 3). Then, the user terminal device can send a second message to the first communication module corresponding to the port, and the second message is used to instruct the first communication module to send the second visible light signal. In this case, the user terminal device implements control of the first communication module to send the second visible light signal, so in this case the user terminal device is also called a control device.

Optionally, the second visible light signal may include fault type information, which is used to test packet loss, laser failure, disconnection, receiving end failure, etc., so as to troubleshoot communication faults of the first communication module.

Optionally, the second visible light signal may indicate the working status of the first communication module. For example, the working status may include sleep, online registration, normal communication, etc. Through this working state, the communication state between the first communication module and the second communication module can be reflected, thereby enabling troubleshooting of communication faults in the first communication module.

It is worth noting that, in addition to barcodes, the instruction information of the first communication module can also be in the form of QR codes, text, etc., which is not limited in this application.

Optionally, after the user terminal device obtains the information of the first communication module corresponding to the port, the user terminal device may automatically send the second message to the first communication module, or may send the second message according to user instructions. For example, as shown in Figure 7, the user terminal device obtains the information of the first communication module corresponding to the port (such as the MAC address of ONU 3), and can display the interface shown in Figure 6, which includes a "communication status acquisition" control. If the user selects this control, the user terminal device receives the user instruction to obtain the communication status, thereby sending a second message to the ONU 3 to implement troubleshooting of communication faults between the optical splitter and the ONU 3.

Optionally, after the user terminal device obtains the information of the first communication module corresponding to the port, the user terminal device can request the central office communication module or the peer communication module of the first communication module to control the first communication module to send the second visible light. Signal.

For example, in a point-to-multipoint network, if the user terminal device determines that the first communication module corresponding to the port is ONU 3, it can send a request message to the OLT (central office communication module). The request message is used to request the communication status of ONU 3. . The OLT sends the second message to ONU 3 according to the request message. In this case, the OLT realizes the control of the first communication module to send the second visible light signal, so in this case the OLT is also called a control device.

For example, in a point-to-point network (such as the architecture shown in Figure 2b), the user terminal equipment determines that the first communication module corresponding to the port is optical module 2, and can send a request to the peer communication module of the first communication module (optical module 2). (Optical module 1) sends a request message, which is used to request the optical module 1 to obtain the communication status of the optical module 2. The optical module 1 sends the second message to the optical module 2 according to the request message. In this case, the optical module 1 controls the first communication module to send the second visible light signal, so in this case the optical module 1 (the opposite communication module of the first communication module) is also called a control device.

Optionally, the control device can also be a sending unit on the first communication module. The first communication module can also include a visible light component. The sending unit is used to send a second message to the visible light component. The second message is used to control the visible light component to send out The second visible light signal. For example, the sending unit may include a physical switch on the first control module, and the sending unit may generate a control message according to the user's operation on the physical switch (such as closing the switch, pressing a key switch, etc.), and the control message may be the second message. The sending unit sends the second message to the visible light component, thereby controlling the visible light component to send the second visible light signal.

In this embodiment of the present application, in addition to the fault status of the optical fiber between the first communication module and the second communication module and the communication status of the first communication module, the communication-related information may also include device information of the first communication module.

3. Communication-related information includes device information of the first communication module.

In this embodiment of the present application, the visible light signal may include a third visible light signal, the third visible light signal is used to indicate the device information of the first communication module, and the third visible light signal is used to obtain the device information of the first communication module.

For example, as shown in Figure 8, if the first communication module is ONU 3, the second communication module is an optical splitter connected to the ONU in the ODN. In the case of obtaining the device information of ONU 3, the ONU can input the third visible light signal into the optical fiber 3.

Optionally, the device information of the first communication module carried in the third visible light signal may include the serial number, MAC address information, etc. of the first communication module.

For example, if the device information of the first communication module includes a serial number, MAC address information, etc., the serial number, MAC address information, etc. of the first communication device can be represented by a third visible light signal of a target color (eg, blue). For example, specific device information can be represented by a special identifier in the third visible light signal. For example, the serial number can be represented by a single flash, and the value of the serial number can be represented by binary (or other base) in a single flash; the MAC address can be represented by a double flash, and the MAC address can be represented by binary (or other base) in a double flash. value. Optionally, if the device information of the first communication module includes the above, the third visible light signal may be a superposition of different flashing frequencies, different color light signals, different special identifications, different bases, different flashing modes, etc.

It is worth noting that the above description of the color, flashing frequency, etc. of the third visible light signal is only an example. The third visible light signal can also represent the corresponding device information in other forms, such as expressing the serial number through color, through The flashing frequency represents the MAC address, etc., which is not limited in this application.

Optionally, the first communication module can send the third visible light signal in different scenarios, such as automatically sending it after power-on, sending it when it is determined that the first communication module is faulty, or sending it according to the instructions of the control device, etc., Next, expand the explanation:

Optionally, the first communication module may send the third visible light signal when the normal working state is determined. For example, if the first communication module is online and communicating normally, the first communication module can actively send a third optical signal to the second communication module. The third optical signal includes optical signals of different colors and flashing frequencies to indicate the first communication. Module serial number, MAC address, etc.

For example, the third visible light signal shown in FIG. 8 may be blue alternating current light, which flashes at the second frequency to represent the MAC address information of the first communication module.

Optionally, the first communication module may also send the third visible light signal when it is determined that the first communication module fails. The failure of the first communication module may include failure of the first communication module itself, failure of communication of the first communication module, etc. For example, if the first communication module experiences packet loss, laser failure, disconnection, receiving end failure, etc., the first communication module can actively send a third optical signal to the second communication module, and use the third optical signal to indicate the first Device information of the communication module.

Optionally, the first communication module can also send the third visible light signal according to the instruction of the control device. For example, as shown in Figure 8, the operation and maintenance personnel can collect the barcode corresponding to the port through the user terminal device and identify the first communication module connected to the port (for example, by scanning Scan the barcode 3 to determine that the first communication module corresponding to the port is ONU 3). Then, the user terminal device can send a third message to the first communication module corresponding to the port, and the third message is used to instruct the first communication module to send the third visible light signal. In this case, the user terminal device implements control of the first communication module to send the third visible light signal, so in this case the user terminal device is also called a control device.

Optionally, after the user terminal device obtains the information of the first communication module corresponding to the port, the user terminal device may automatically send the third message to the first communication module, or may send the third message according to user instructions. For example, as shown in Figure 8, the user terminal device obtains the information of the first communication module corresponding to the port (such as the MAC address of ONU 3), and can display the interface shown in Figure 6, which includes a "device information acquisition" control. If the user selects this control, the user terminal device receives the user instruction to obtain device information, thereby sending a third message to ONU 3 to obtain the device information of ONU 3.

Optionally, after the user terminal device obtains the information of the first communication module corresponding to the port, the user terminal device can request the central office communication module or the peer communication module of the first communication module to control the first communication module to send the third visible light. Signal.

For example, in a point-to-multipoint network, if the user terminal device determines that the first communication module corresponding to the port is ONU 3, it can send a request message to the OLT (central office communication module). The request message is used to request the device information of ONU 3. . The OLT sends the third message to ONU 3 according to the request message. In this case, the OLT realizes the control of the first communication module to send the third visible light signal, so in this case the OLT is also called a control device.

For example, in a point-to-point network (such as the architecture shown in Figure 2b), the user terminal equipment determines that the first communication module corresponding to the port is optical module 2, and can send a request to the peer communication module of the first communication module (optical module 2). (Optical module 1) sends a request message, which is used to request the optical module 1 to obtain the device information of the optical module 2. The optical module 1 sends the third message to the optical module 2 according to the request message. In this case, the optical module 1 controls the first communication module to send the third visible light signal, so in this case the optical module 1 (the opposite communication module of the first communication module) is also called a control device.

Optionally, the control device can also be a sending unit on the first communication module. The first communication module can also include a visible light component. The sending unit is used to send a third message to the visible light component. The third message is used to control the visible light component to send out The third visible light signal. For example, the sending unit may include a physical switch on the first control module, and the sending unit may generate a control message according to the user's operation on the physical switch (such as closing the switch, pressing a key switch, etc.), and the control message may be a third message. The sending unit sends the third message to the visible light component, thereby controlling the visible light component to send the third visible light signal.

It is worth noting that although the embodiments of the present application classify visible light signals, it does not limit that different types of visible light signals cannot appear in the same light signal. For example, the visible light signal sent by the first communication module to the second communication module not only carries the fiber fault status carried by the first visible light, but also carries the communication status carried by the second visible light, etc. This application does not limit this. .

Optionally, the visible light signal can carry different types of information through characteristics of different dimensions. For example, the color of the visible light signal can be used to carry the content of the first visible light (fiber fault status), and the flashing frequency of the visible light signal can be used to carry the second visible light. The content (communication status) can also carry different types of information through features with different values in the same dimension. For example, the content of the first visible light (fiber failure status) can be carried through the first frequency flashing of the green visible light signal. The second frequency flashes to carry the content of the second visible light (communication status), etc. This application does not limit this.

For example, the green DC light signal in Figure 5 is the first visible light signal, the red AC light flashing at the first frequency in Figure 7 is the second visible light signal (for example, indicating a communication failure of the first communication device), and the second visible light signal in Figure 8 The frequency-flickering blue alternating current light is a third visible light signal (for example, representing the MAC address information of the first communication module). Then the visible light signal may include both the red AC light in Figure 7 and the blue AC light in Figure 8 (that is, the second visible light signal and the third visible light signal are integrated into one visible light signal, which means that the first communication module communicates fault, which also represents the MAC address information of the first communication module); or, the first visible light signal and the second visible light signal are integrated, the first visible light signal and the third visible light signal are integrated; or, the three optical signals are integrated into one optical signal (that is, the visible light signal characteristics of Figure 5, Figure 7 and Figure 8 appear together), etc., this application does not limit this.

It is worth noting that in the embodiments of FIG. 4 to FIG. 8 , the ONU is used as the first communication module and the optical splitter is used as the second communication module. This does not limit the first communication module and the second communication module. For example, the first communication module and the second communication module can also be two optical modules connected through optical fibers in point-to-point communication, or the first communication module can be The OLT and the second communication module may be optical splitters, etc., which are not limited in this application.

It is worth noting that the classification of visible light signals in the above embodiments is only an example. The embodiments of the present application may also include more types of visible light signals for transmitting more types of information, which is not limited by this application.

The signal transmission method provided by the embodiment of the present application is described above, and the modules, devices and networks used to implement the signal transmission method are described below.

As shown in Figure 9, this embodiment of the present application provides a first communication module 900. The first communication module 900 includes a visible light component 910 and a first communication port 920. Among them, the visible light component 910 is used to generate a visible light signal. The visible light signal is used to indicate at least one of the following: the fault status of the optical fiber between the first communication module and the second communication module, the communication status of the first communication module, and the device information of the first communication module. The first communication port 920 is used to send visible light signals to the second communication module. The first communication module 900 is used to perform the actions of the first communication module in any of the foregoing embodiments to implement the method described in any of the foregoing embodiments.

In an optional implementation, the first communication module 900 also includes an invisible light component 930, which is used to generate an invisible light signal, and the invisible light signal is used to transmit business information. In the embodiment of this application, invisible light signals are also called communication light signals.

Optionally, the invisible light component 930 can be integrated and packaged with the visible light component 910 .

Optionally, the first communication module may also include a multiplexer 940, which is used to multiplex the communication optical signal and the visible light signal, and input the multiplexed optical signal into the first communication port 920.

Optionally, the combiner 940 may include a wavelength division multiplexing (WDM).

Optionally, the first communication module 900 may also include a control circuit 950, which is used to control the visible light component 910, so that the visible light component 910 emits visible light signals of different colors, flicker frequencies, etc., to represent different Communications related information. What color, blinking frequency, etc. the visible light signal uses to represent what kind of communication-related information has been exemplarily explained in the embodiments of FIG. 3 to FIG. 8 and will not be described again here.

Optionally, the first communication port 920 may include the sending unit in the above embodiment. For example, the first communication port 920 may include a physical switch, and the first communication port 920 may generate a control message according to a user's operation on the physical switch (eg, closing the switch, pressing a key switch, etc.). The first communication port 920 sends the control message to the visible light component 910, thereby controlling the visible light component 910 to send a visible light signal.

As shown in FIG. 10 , this embodiment of the present application provides a second communication module 1000 , which includes a second communication port 1010 and a display unit 1020 . The second communication port 1010 is used to receive visible light signals and invisible light signals from the first communication module. Among them, invisible light signals are used to transmit business information. The visible light signal is used to indicate at least one of the following: the fault status of the optical fiber between the first communication module and the second communication module, the communication status of the first communication module, and the device information of the first communication module. The display unit 1020 is used to display visible light corresponding to the visible light signal. The second communication module 1000 is used to perform the actions of the second communication module in any of the foregoing embodiments to implement the method described in any of the foregoing embodiments.

In an optional implementation, the second communication module 1000 further includes a communication light receiving component 1030 and an optical splitter 1040. The optical splitter 1040 is used to separate the visible light signal and the communication light signal from the second communication port 1010, input the visible light signal to the display unit 1020, and input the communication light signal to the communication light receiving component 1030. The communication light receiving component 1030 is used for receiving communication light signals.

Optionally, the optical splitter 1040 may include a wavelength demultiplexer WDM.

Optionally, the second communication module 1000 may also include an analysis unit 1050, which is configured to analyze communication-related information carried in the visible light signal. What color, blinking frequency, etc. the visible light signal uses to represent what kind of communication-related information has been exemplarily explained in the embodiments of FIG. 3 to FIG. 8 and will not be described again here.

As shown in Figure 11, this embodiment of the present application provides a control device 1100. The control device 1100 includes a sending unit 1110. The sending unit 1110 is used to send a control message to the first communication module. The control message is used to instruct the first communication module to send a visible light signal. The visible light signal is used to indicate at least one of the following: the fault status of the optical fiber between the first communication module and the second communication module, the communication status of the first communication module, and the device information of the first communication module. The control device 1100 is used to perform the actions of the control device in any of the foregoing embodiments to implement the method described in any of the foregoing embodiments.

In an optional implementation, the control device 1100 includes the central office communication module or the counterpart communication module of the first communication module. The control device 1100 also includes a receiving unit 1120, which is configured to receive a request message from the user terminal device. The request message is used to instruct the control device to obtain at least one of the following: the fault status of the optical fiber between the first communication module and the second communication module, the communication status of the first communication module, and the device information of the first communication module. The sending unit 1110 is specifically configured to send a control message to the first communication module according to the request message.

In an optional implementation, the control device 1100 includes a user terminal device, and the user terminal device further includes a collection unit 1130. The collection unit 1130 is used to obtain indication information of the first communication module. The sending unit 1110 of the user terminal device is specifically configured to send a control message to the first communication module according to the instruction information of the first communication module.

In an optional implementation, the sending unit 1110 on the control device 1100 may also be the sending unit 1110 on the first communication module 900 (for example, the sending unit 1110 is added in FIG. 9 ). The first communication module 900 also includes a visible light component 910. The sending unit 1110 It is used to send a control message to the visible light component 910 according to user operation, and the control message is used to control the visible light component 910 to emit a visible light signal.

For example, the sending unit 1110 may include a physical switch of the first control module, and the sending unit 1110 may generate a control message according to the user's operation on the physical switch (such as closing the switch, pressing a key switch, etc.). The sending unit 1110 sends the control message to the visible light component 910, thereby controlling the visible light component 910 to send the visible light signal.

An embodiment of the present application also provides an optical communication network, which includes the first communication module 900 shown in FIG. 9 and the second communication module 1000 shown in FIG. 10 . The optical communication network is used to implement the method described in any of the preceding embodiments.

In an optional implementation, the second communication module 1000 is connected to the first communication module 900 through a second communication port 1010. The second communication port 1010 includes indication information of the first communication module 900 (for example, barcode, two-dimensional code, etc.).

In an optional implementation, the optical communication network also includes the control device 1100 shown in Figure 11.

Those skilled in the art can clearly understand that for the convenience and simplicity of description, the specific working processes of the systems, devices and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be described again here.

In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are only illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components may be combined or can be integrated into another system, or some features can be ignored, or not implemented. On the other hand, the coupling or direct coupling or communication connection between each other shown or discussed may be through some interfaces, and the indirect coupling or communication connection of the devices or units may be in electrical, mechanical or other forms.

The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place, or they may be distributed to multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in each embodiment of the present application can be integrated into one processing unit, each unit can exist physically alone, or two or more units can be integrated into one unit. The above integrated units can be implemented in the form of hardware or software functional units.

If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it may be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application is essentially or contributes to the existing technology, or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium , including several instructions to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in various embodiments of this application. The aforementioned storage media include: U disk, mobile hard disk, read-only memory (ROM), random access memory (RAM), magnetic disk or optical disk and other media that can store program code. .

Claims

A signal transmission method, characterized in that it is applied to the first communication module and includes:

Send a visible light signal to the second communication module, the visible light signal being used to indicate at least one of the following:

The fault status of the optical fiber between the first communication module and the second communication module, the communication status of the first communication module, and the equipment information of the first communication module;

Send an invisible light signal to the second communication module, where the invisible light signal is used to transmit business information.
The method of claim 1, wherein the visible light signal includes a first visible light signal, and the first visible light signal is used to detect a fault in the optical fiber between the first communication module and the second communication module. state;

If the optical fiber does not fail, the visible light corresponding to the first visible light signal is displayed on the second communication module;

If the optical fiber fails, the first visible light signal is displayed at the fault point of the optical fiber.
The method according to claim 1 or 2, characterized in that the visible light signal includes a second visible light signal, and the second visible light signal is used to indicate the communication status of the first communication module.
The method according to claim 3, characterized in that the communication status includes at least one of the following:

Whether the first communication module fails, the fault information of the first communication module and the working status of the first communication module.
The method according to any one of claims 1 to 4, wherein the visible light signal includes a third visible light signal, and the third visible light signal is used to indicate device information of the first communication module.
The method according to any one of claims 2 to 5, wherein the first visible light signal, the second visible light signal and the third visible light signal include at least one of direct current light and alternating current light. .
The method according to claim 6, characterized in that the modulation frequency of the alternating current light is lower than 1 GHz.
The method according to any one of claims 1 to 7, characterized in that sending a visible light signal to the second communication module includes:

Send the visible light signal to the second communication module according to a control message from the control device, wherein the control message is used to instruct the first communication module to send the visible light signal; or,

If the first communication module determines that the first communication module is faulty, the visible light signal is sent to the second communication module; or,

The visible light signal is sent to the second communication module according to sending an online request to the second communication module.
The method according to claim 8, characterized in that the control device includes any of the following:

The central office communication module, the counterpart communication module of the first communication module, the user terminal equipment and the first communication module.
The method according to claim 8, characterized in that the first communication module determines that the first communication module is faulty, including:

The first communication module determines that a communication failure occurs between the first communication module and the second communication module.
A signal transmission method, characterized in that it is applied to the second communication module and includes:

Receive visible light signals and invisible light signals from the first communication module; wherein the invisible light signals are used to transmit business information, and the visible light signals are used to indicate at least one of the following:

The fault status of the optical fiber between the first communication module and the second communication module, the communication status of the first communication module, and the equipment information of the first communication module;

Display the visible light corresponding to the visible light signal;

Transparently transmit the invisible light signal.
The method of claim 11, wherein the visible light signal includes a first visible light signal, and the first visible light signal is used to detect a fault in the optical fiber between the first communication module and the second communication module. Status; displaying the visible light corresponding to the visible light signal includes:

If the optical fiber is not faulty, the visible light corresponding to the first visible light signal is displayed.
The method according to claim 11 or 12, characterized in that the visible light signal includes a second visible light signal, and the second visible light signal is used to indicate the communication status of the first communication module.
The method according to claim 13, characterized in that the communication status includes at least one of the following:

Whether the first communication module fails, the fault information of the first communication module and the working status of the first communication module.
The method according to any one of claims 11 to 14, wherein the visible light signal includes a third visible light signal, and the third visible light signal is used to indicate device information of the first communication module.
The method according to any one of claims 12 to 15, wherein the first visible light signal, the second visible light signal and the third visible light signal include at least one of direct current light and alternating current light. .
The method according to claim 16, characterized in that the modulation frequency of the alternating current light is lower than 1 GHz.
The method according to any one of claims 11 to 17, characterized in that the visible light signal is sent by the first communication module according to at least one of the following:

The first communication module receives a control message from the control device, the control message is used to instruct the first communication module to send the visible light signal;

The first communication module determines that the first communication module is faulty;

The first communication module sends an online request to the second communication module.
A signal transmission method, characterized in that it is applied to control equipment, including:

Send a control message to the first communication module, the control message is used to instruct the first communication module to send a visible light signal, the visible light signal is used to indicate at least one of the following:

The fault status of the optical fiber between the first communication module and the second communication module, the communication status of the first communication module, and the device information of the first communication module.
The method according to claim 19, characterized in that the control message includes at least one of a first message, a second message and a third message;

The first message is used to instruct the first communication module to send a first visible light signal, and the first visible light signal is used to detect a fault state of the optical fiber between the first communication module and the second communication module;

The second message is used to instruct the first communication module to send a second visible light signal, and the second visible light signal is used to indicate the communication status of the first communication module;

The third message is used to instruct the first communication module to send a third visible light signal, and the third visible light signal is used to indicate device information of the first communication module.
The method according to claim 19 or 20, characterized in that the control device includes any of the following:

The central office communication module, the counterpart communication module of the first communication module, the user terminal equipment and the first communication module.
The method according to claim 21, characterized in that the control device includes the central office communication module or the opposite end communication module of the first communication module, and the method further includes:

Receive a request message from the user terminal device, the request message is used to instruct the control device to obtain at least one of the following: the fault status of the optical fiber between the first communication module and the second communication module, the The communication status of a communication module and the device information of the first communication module;

The sending a control message to the first communication module includes:

The control message is sent to the first communication module according to the request message.
The method according to claim 21, characterized in that the second communication module is connected to the first communication module through a second communication port, and the second communication port includes indication information of the first communication module; The control device includes the user terminal device, and the method further includes:

Obtain indication information of the first communication module;

The control message is sent to the first communication module according to the instruction information of the first communication module.
A first communication module, characterized by including:

Visible light component, used to generate a visible light signal, the visible light signal is used to indicate at least one of the following: a fault state of the optical fiber between the first communication module and the second communication module, communication of the first communication module Status and device information of the first communication module;

A first communication port used to send the visible light signal to the second communication module;

The first communication module is used to implement the method described in any one of claims 1 to 10.
The module according to claim 24, further comprising:

Invisible light components are used to generate invisible light signals, and the invisible light signals are used to transmit business information;

The invisible light component and the visible light component are integrated and packaged.
A second communication module, characterized by including:

The second communication port is used to receive visible light signals and invisible light signals from the first communication module; wherein the invisible light is used to Transmitting service information, the visible light signal is used to indicate at least one of the following: the fault status of the optical fiber between the first communication module and the second communication module, the communication status of the first communication module and the third communication module. 1. Equipment information of the communication module;

A display unit configured to display visible light corresponding to the visible light signal;

The second communication module is used to implement the method described in any one of claims 11 to 18.
A control device, characterized by including:

A sending unit, configured to send a control message to the first communication module. The control message is used to instruct the first communication module to send a visible light signal. The visible light signal is used to indicate at least one of the following:

The fault status of the optical fiber between the first communication module and the second communication module, the communication status of the first communication module, and the device information of the first communication module.
The device according to claim 27, wherein the control device includes the central office communication module or the counterpart communication module of the first communication module, and the control device further includes:

A receiving unit, configured to receive a request message from a user terminal device, the request message being used to instruct the control device to obtain at least one of the following: a fault in the optical fiber between the first communication module and the second communication module status, the communication status of the first communication module and the device information of the first communication module;

The sending unit is specifically configured to send the control message to the first communication module according to the request message.
The device according to claim 27, characterized in that the control device includes a user terminal device, and the user terminal device further includes:

A collection unit, used to obtain the instruction information of the first communication module;

The sending unit is specifically configured to send the control message to the first communication module according to the instruction information of the first communication module.
The device according to claim 27, wherein the first communication module includes the sending unit and a visible light component, the control device is the sending unit, and the sending unit is specifically used for:

The control message is sent to the visible light component according to user operation, and the control message is used to instruct the visible light component to send the visible light signal.
An optical communication network, characterized by comprising the first communication module according to claim 24 or 25 and the second communication module according to claim 26;

The optical communication network is used to implement the method according to any one of claims 1 to 23.
The network according to claim 31, wherein the second communication module is connected to the first communication module through a second communication port, and the second communication port includes indication information of the first communication module.