WO2012009889A1 - Method and optical network unit for monitoring data transmission - Google Patents

Abstract

A method and optical network unit (ONU) for monitoring data transmission are provided by the present invention. Said method is applied to Passive Optical Network (PON), which includes that: an Optical Network Unit (ONU) receives the state information of the monitored equipment transmitted from the monitoring device (S302), and the state information of the monitored equipment includes environment information and/or power supply information of the equipment; the ONU transmits the state information of the monitored equipment to a network management server (S304). In the present invention, the environment and power supply state of various types of electronic equipments are monitored by connecting ONU with the existing environment/power supply monitoring equipment for realizing the monitoring data transmission in PON and extending the functions of ONU.

Description

 TECHNICAL FIELD The present invention relates to the field of Passive Optical Network (PON) in the communications industry, and in particular to a method for monitoring data transmission and an optical network unit (Optical Network) Unit, referred to as ONU) „ Background Technology With the development of broadband access technology, operators are gradually accepting and deploying Optical Access Network (OAN) to provide users with faster speed and higher quality. PON is a point-to-multipoint fiber access technology. Figure 1 is a system architecture diagram of a related technology PON. As shown in Figure 1, the PON is an Optical Line Terminal (OLT), optical distribution. An optical distribution network (ODN) and an ONU are used. An OLT can connect multiple ONUs through an ODN. The PON has the following advantages over the traditional networking: (1) The central office (such as the OLT) and the user ( For example, there are optical passive components such as optical fibers and optical splitters between ONUs. There is no need to rent a computer room, no power supply, no active power. Equipment maintenance personnel Thus, for device owners who can significantly reduce operation and maintenance costs; Reduce installation, management and operational costs, increase return on investment, increase new revenue opportunities, such as long-term competitive advantage.

(2) Using single-fiber wavelength division multiplexing technology (downstream 1490nm, uplink 1310nm), only one main kilofiber and one OLT are needed, and the transmission distance can be up to 40 kilometers. It is distributed to the maximum of 64 users through the optical splitter on the ONU side, thus greatly reducing the cost pressure of the OLT and the main kilofiber.

(3) PON systems provide very high bandwidth, and the bandwidth currently provided is more than gigabit. With the development of technology, bandwidth capacity is still growing.

(4) When the PON system is deployed, it can provide redundant access configuration according to actual needs to ensure the reliability of the line. With the increasing number of devices owned by users, there are quite a few users who are very concerned about the environment of the devices and the operation of the power supply, and hope to monitor them in real time. So how to use PON Implementing device monitoring has become a problem that needs to be solved. SUMMARY OF THE INVENTION A primary object of the present invention is to provide a method for monitoring data transmission and an optical network unit to solve the above problem that the device cannot be monitored by the existing PON. According to an aspect of the present invention, a method for monitoring data transmission is provided, which is applied to a passive optical network PON, including: an optical network unit ONU receives monitoring device status information sent by a monitoring device, and the monitored device status information includes a device environment. Information and/or device power information; The ONU sends the monitored device status information to the network management server. Preferably, in the technical solution, the network management server manages the monitoring device as a sub-device of the ONU, and the method further includes: the ONU receiving the network management server to send the monitoring device parameter associated with the ONU; and the ONU sending the monitoring device parameter to the corresponding monitoring Equipment; The monitoring equipment is configured according to the parameters of the monitoring equipment. Preferably, in the technical solution, if the monitoring device uses the serial port and the ONU to perform data transmission, the ONU receives the monitoring device parameter associated with the ONU in the network data format sent by the network management server; the ONU converts the monitoring device parameter of the network data format into The monitoring device parameters of the serial port format; the ONU sends the monitoring device parameters of the serial port format to the corresponding monitoring device; the monitoring device performs configuration according to the monitoring device parameters. If the monitoring device uses the network interface and the ONU to perform data transmission, the ONU receives the monitoring device parameters associated with the ONU in the network data format sent by the network management server; the ONU sends the monitoring device parameters of the network data format to the corresponding monitoring device; The device is configured according to the monitoring device parameters. Preferably, in the technical solution, if the monitoring device uses the serial port and the ONU to perform data transmission, the ONU receives the status information of the monitored device in the serial port format sent by the monitoring device; the ONU converts the monitored device status information in the serial port format into network data. The monitored device status information of the format; the ONU sends the monitored device status information of the network data format to the network management server. If the monitoring device uses the network interface and the ONU to perform data transmission, the ONU receives the monitored device status information in the network data format sent by the monitoring device; the ONU sends the monitored device status information in the network data format to the network management server. Preferably, in the technical solution, the ONU receives the monitored device status information sent by the monitoring device, including: the ONU listening monitoring device, and receiving the monitored device status information sent by the monitoring device in real time; or the ONU receiving the monitoring device to check the status of the network management server Requested response message, response message Includes monitored device status information. Preferably, in the technical solution, the ONU sends the monitored device status information to the network management server, and the ONU sends the monitored device status information to the network management server by using the optical line terminal OLT in a TCP or UDP manner. According to another aspect of the present invention, an ONU is provided, which is applied to a passive optical network PON, and includes: a receiving module, configured to receive status information of the monitored device sent by the monitoring device, where the monitored device status information includes the device environment. Information and/or device power information; a sending module, configured to send the monitored device status information to the network management server. In the present invention, the ONU is connected to an existing environment/power monitoring device to monitor the environment and power conditions of various electronic devices, thereby realizing the transmission of monitoring data in the PON network, and expanding the function of the ONU. BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are set to illustrate,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, 1 is a system architecture diagram of a prior art PON; FIG. 2 is a structural diagram of a PON system in a method for monitoring data transmission according to an embodiment of the method of the present invention; FIG. 3 is a monitoring method according to an embodiment of the present invention. FIG. 4 is a flowchart of a method for transmitting data according to a fourth embodiment of the present invention; FIG. 5 is a schematic diagram of an ONU according to a first embodiment of the apparatus according to the present invention; A schematic diagram of the connection of an ONU of the first embodiment of the apparatus of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The embodiments and embodiments of the present invention provide an integrated environment/power monitoring device integrated into the operation, maintenance, and management of a PON system, thereby extending the service functions of the ONU and protecting the existing users. Investment and equipment. The invention will be described in detail below with reference to the drawings in conjunction with the embodiments. It should be noted that the embodiments in the present application and the features in the embodiments may be combined with each other without conflict. The present invention will now be described in further detail by way of specific examples and drawings. Method Embodiment 1 FIG. 2 is a structural diagram of a PON system in a monitoring data transmission method according to Embodiment 1 of the method of the present invention. Compared to Figure 1, Figure 2 adds the network management server and environmental power monitoring equipment. As shown in Figure 2, the network administrator server is connected to the OLT through the INTERNET. The OLT is connected to the ONU through the ODN. The ONU has at least one serial port or network port for connecting to the environment/power monitoring device. 3 is a flow chart of a method for monitoring data transmission according to an embodiment of the method of the present invention. As shown in FIG. 3, the embodiment includes: Step S302: The optical network unit ONU receives the monitored device status information sent by the monitoring device, where the monitored device status information includes device environment information and/or device power information. Step S304, the ONU The monitored device status information is sent to the network management server. The method provided in this embodiment utilizes the existing environmental power monitoring device to communicate with the environmental power monitoring device through the ONU, thereby realizing the transmission of the monitoring data in the PON network. The monitoring device generally has the function of connecting the monitoring computer through the serial port or connecting the network to monitor the alarm information through the network cable, and as the advantages of the PON become more and more obvious, the application is more and more extensive, and more and more PONs are provided in the place where the monitoring device is located. Access conditions. Currently, the access devices of these sites are generally ONUs. However, the ONUs on the market currently only provide Circuit Emulation Service (CES), voice services, or data services based on the physical network port RJ45. In addition, most of the monitoring devices are basically serial port (such as RS-232, RS-485, RS-422) for cost reasons, as an output interface for monitoring information. Therefore, in order to integrate the existing environment and power monitoring equipment into the operation and maintenance management of the PON system, it is a simple and low-cost way to set the interface corresponding to the monitoring equipment on the ONU. The monitoring device can be implemented, and the changes to the network are small. The method examples 2 to 4 will be described in detail below. Method Embodiment 2: Referring to FIG. 2, in this embodiment, the ONU and the monitoring device are connected through a serial port. This embodiment will explain the case where the monitoring device uses the serial port for data transmission on the basis of the first embodiment of the method. This embodiment includes three cases: the ONU actively monitors the monitoring data and the ONU forwards the monitoring data; the ONU forwards the monitoring device configuration parameters.

The ONU actively monitors the monitoring data, including the following steps: The ONU listens to the data message generated by the monitoring device on the serial port; once the serial port data is generated, the ONU receives the serial port data of the monitoring device; the ONU encapsulates the serial port data into the network data 4 The ONU sends the monitoring data of the network data packet format to the corresponding network management server through the OLT in the form of TCP or UDP. The network management server parses the network data packet and restores it to the environment power monitoring information for analysis and statistics.

The ONU forwards the monitoring data, including the following steps: The network management server generates a query or configuration request, and forwards the data data packet to the ONU through the OLT; the ONU converts the network data packet into a serial port and passes the message. The serial port is sent to the environment power monitoring device. After receiving the serial port data packet, the environment power monitoring device resolves the query to its own query or configuration command, and returns the execution result to the ONU through the serial port. The ONU then converts the serial port data packet into network data. The packet is forwarded and forwarded to the network management server through the OLT; the network management server finally parses the network data into a visual result.

The ONU forwards the configuration parameters of the monitoring device, including the following steps: The network management server configures the monitoring device parameters associated with the ONU and encapsulates them into network data packets; the network management server sends the data to the OLT through the internet through TCP or UDP. The OLT forwards it to the corresponding ONU; the ONU passes the serial port data forwarding module and converts it into a identifiable form of the monitoring device according to the serial port protocol and sends it to the monitoring device through the serial port, thereby configuring the environment power monitoring device. In this embodiment, the serial port may be an interface that satisfies the RS-232 protocol, the RS-485 protocol, or the RS-422 protocol. In this embodiment, the existing environment power monitoring device is used to obtain the environment power monitoring information to the PON system network management server, and the related information of the environment power monitoring device is configured through the network management server, thereby integrating the monitoring device into the operation and maintenance management of the PON system. It expands the application range of the PON network and facilitates the monitoring and management of monitoring equipment. Method Embodiment 3: Referring to FIG. 2, in this embodiment, the ONU and the monitoring device are connected through a network interface. This embodiment will explain the case where the monitoring device uses the network interface for data transmission on the basis of the first embodiment of the method. This embodiment includes two cases: the ONU forwards the monitoring data; the ONU forwards the monitoring device. Prepare configuration parameters.

The ONU forwards the monitoring data, including the following steps: The monitoring device sends the monitoring data to the ONU in the form of network packets; the ONU forwards the data to the OLT through the optical fiber splitter; the OLT forwards the data to the network management server; the network management server sends the network data. The package is parsed, restored to environmental power monitoring information, analyzed and counted, thus achieving environmental and power information monitoring.

The ONU forwards the configuration parameters of the monitoring device, including the following steps: The network management server manages the monitoring device as part of the ONU (that is, as a child device), and configures the monitoring device parameters associated with the ONU; the network management server encapsulates the network data into network data. The packet is sent to the OLT through the Internet in the TCP or UDP mode, and the OLT forwards the packet to the corresponding ONU. The ONU forwards the data packet to the monitoring device through the network port. The monitoring device parses the data packet to implement the packet. Configure the environmental power monitoring device. In this embodiment, the network interface is an interface that satisfies the RJ-45 protocol. This embodiment has the same advantageous effects as the second embodiment of the method, and will not be repeated here. Method Embodiment 4: FIG. 4 is a flowchart of a method for monitoring data transmission according to Embodiment 4 of the method of the present invention. As shown in FIG. 4, the embodiment includes: Step 402: The network management server sets or queries the environment power monitoring device information. Step 404: The network management server converts the network management server operation into an IP data packet, and sends the data to the OLT in the form of TCP or UDP. Step 406: The OLT forwards the IP data packet to the corresponding ONU. Step 408: The ONU converts the network data into the serial port data. Step 410: The ONU sends the data to the environment power monitoring device through the serial port. 412: The environment power monitoring device processes the serial port data, and generates corresponding serial port information according to the content of the packet. Step 414: The environment power monitoring device sends the data to the ONU through the serial port. Step 416: The ONU converts the serial port data into a network. Data 4 艮 text; Step 418: The ONU sends the network data to the OLT in the form of TCP or UDP. Step 420: The OLT forwards the IP data to the network management server. Step 422: The network management server parses the IP data packet to generate a final visualization. result. This embodiment is a specific implementation process of the second embodiment of the method, and has all the beneficial effects of the second embodiment of the method, and is not repeated here. Device Embodiment 1: This embodiment provides an ONU with monitoring data transmission function, which is applied to a passive optical network PON. FIG. 5 is a schematic diagram of an ONU according to Embodiment 1 of the apparatus of the present invention. As shown in FIG. 5, the ONU includes: a receiving module 502, configured to receive status information of the monitored device sent by the monitoring device, where the monitored device status information includes device environment information and/or device power information, and a sending module 506, configured to: The monitored device status information is sent to the network management server. In this embodiment, if the monitoring device uses the serial port for data transmission, the ONU further includes a serial port forwarding module 504, the terminal is connected to the receiving module 502, and the other end is connected to the sending module 506. The receiving module is specifically configured to receive status information of the monitored device in a serial port format sent by the monitoring device; the network port forwarding module is configured to convert status information of the monitored device in the serial port format into status information of the monitored device in the network data format; The module is specifically configured to send the monitored device status information of the network data format to the network management server. In addition, the network management server manages the monitoring device as a child of the ONU. The receiving module is further configured to receive a monitoring device parameter associated with the ONU in a network data format sent by the network management server; the network port forwarding module is further configured to convert the monitoring device parameter of the network data format into a monitoring device parameter of the serial port format; The sending module is further configured to send the monitoring device parameter of the serial port format to the corresponding monitoring device. In this embodiment, if the monitoring device uses the network interface for data transmission, the receiving module is specifically configured to receive the monitored device state information of the network data format sent by the monitoring device; the sending module is specifically configured to use the network data format The monitoring device status information is sent to the network management server. In addition, the network management server manages the monitoring device as a child device of the ONU, and the receiving module is further configured to receive a monitoring device parameter associated with the ONU in a network data format sent by the network management server; the sending module is further configured to use the network data format. The monitoring device parameters are sent to the corresponding monitoring device. FIG. 6 is a schematic diagram showing the connection of an ONU according to Embodiment 1 of the apparatus of the present invention. As shown in Figure 6, the ONU device usually consists of a passive optical network media access control (PON MAC) part and a Layer 2 switch (L2). SWITCH) is composed of two parts. In this embodiment, in order to realize the mutual conversion between the serial port data and the network data, the serial port port forwarding module and the receiving/transmitting module are added after the layer 2 switching. The data received on the network interface of the ONU to the network management server (network-network interface, ΝΝΙ for short) is the network data packet, and the serial port data of the ONU serial port connected to the monitoring device is the serial port data. Since the business process of the passive optical network media access control (PON MAC) part is not the focus of the present invention, it will not be described here. The method implemented in this embodiment can refer to the related descriptions of the method embodiments 1 to 4, and has all the beneficial effects of the foregoing embodiments, and the details are not repeated in J3⁄4. Obviously, those skilled in the art should understand that the above modules or steps of the present invention can be implemented by a general-purpose computing device, which can be concentrated on a single computing device or distributed over a network composed of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device, such that they may be stored in the storage device by the computing device and, in some cases, may be different from the order herein. The steps shown or described are performed, or they are separately fabricated into individual integrated circuit modules, or a plurality of modules or steps are fabricated as a single integrated circuit module. Thus, the invention is not limited to any specific combination of hardware and software. The above is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the scope of the present invention are intended to be included within the scope of the present invention.

Claims

Claim A method for monitoring data transmission, which is applied to a passive optical network PON, and the method includes the following steps: The optical network unit ONU receives the monitored device status information sent by the monitoring device, and the monitored device status information includes the device environment information. And/or device power information;  The ONU sends the monitored device status information to the network management server. The method according to claim 1, wherein the network management server manages the monitoring device as a child device of the ONU, and the method further includes:  The ONU receiving network management server sends a monitoring device parameter associated with the ONU;  The ONU sends the monitoring device parameter to a corresponding monitoring device; the monitoring device performs configuration according to the monitoring device parameter. 3. The method of claim 2, wherein:  And if the monitoring device uses the serial port and the ONU to perform data transmission, the ONU receives a monitoring device parameter associated with the ONU in a network data format sent by the network management server; the ONU uses the network data format The monitoring device parameter is converted into a monitoring device parameter in a serial port format; the ONU sends the monitoring device parameter of the serial port format to a corresponding monitoring device; the monitoring device performs configuration according to the monitoring device parameter; Transmitting, by the network interface, the data transmission by the ONU, the ONU receiving the monitoring device parameter associated with the ONU in a network data format sent by the network management server; the ONU sending the monitoring device parameter of the network data format to the Corresponding monitoring device; the monitoring device is configured according to the monitoring device parameter. 4. The method of claim 1 wherein: If the monitoring device uses the serial port and the ONU to perform data transmission, the ONU receives the monitored device status information in a serial port format sent by the monitoring device; and the ONU displays the monitored device status information in the serial port format. The monitored device status information converted into the network data format; the ONU sends the monitored device status information of the network data format to the network management server; or If the monitoring device uses the network interface and the ONU to perform data transmission, the ONU receives the monitored device status information in a network data format sent by the monitoring device; the ONU monitors the network data format. Device status information is sent to the network management server. The method according to any one of claims 1-4, wherein the receiving, by the ONU, the monitored device status information sent by the monitoring device comprises:  The ONU listens to the monitoring device, and receives status information of the monitored device sent by the monitoring device in real time; or  The ONU receives a response message from the monitoring device to the status query request of the network management server, where the response information includes status information of the monitored device. The method according to any one of claims 1-4, wherein the sending, by the ONU, the monitored device status information to the network management server includes:  The ONU sends the monitored device status information to the network management server through the optical line terminal OLT in the form of TCP or UDP. 7. An ONU, applied to a passive optical network PON, characterized in that it comprises:  a receiving module, configured to receive status information of the monitored device sent by the monitoring device, where the monitored device status information includes device environment information and/or device power information;  And a sending module, configured to send the monitored device status information to the network management server. The ONU according to claim 7, wherein the network management server manages the monitoring device as a sub-device of the ONU.  The receiving module is further configured to receive a monitoring device parameter that is sent by the network management server and is associated with the ONU;  The sending module is further configured to send the monitoring device parameter to a corresponding monitoring device. The ONU according to claim 8, wherein the ONU further includes a network port forwarding module, if the monitoring device uses a serial port and the ONU to perform data transmission, The receiving module is configured to receive status information of the monitored device in a serial port format sent by the monitoring device, where the network port forwarding module is configured to convert status information of the monitored device in the serial port format into a network data format. Monitored device status information; the sending module, Used to send monitored device status information of the network data format to a network management server; and/or  The receiving module is further configured to receive a monitoring device parameter associated with the ONU in a network data format sent by the network management server; the network port forwarding module is further configured to convert the monitoring device parameter of the network data format The monitoring device parameter is a serial port format. The sending module is further configured to send the monitoring device parameter of the serial port format to a corresponding monitoring device. The ONU according to claim 7, wherein if the monitoring device uses the network interface and the ONU for data transmission,  The receiving module is configured to receive the monitored device status information of the network data format sent by the monitoring device, where the sending module is configured to send the monitored device status information of the network data format to the network management server; and Or  The receiving module is further configured to receive a monitoring device parameter associated with the ONU in a network data format sent by the network management server, where the sending module is further configured to send the monitoring device parameter of the network data format to a corresponding Monitoring equipment.