An optical path control OLT stability automatic detection system, method and platform

Abstract

This invention belongs to the field of PON network communication technology, specifically relating to an automatic detection system, method, device, and platform for OLT stability using optical path control. The system includes an OLT and ONU devices, with an optical path control device between them. A control host is located on one side of the optical path control device. The control host issues test commands to the data analyzer and OLT via a network port, or to the optical path control device via a serial port. The invention also includes a corresponding method, device, and platform. In the optical network transmitting data between the OLT and each ONU, the optical path control device controls one or more optical paths in the transmission between the OLT and ONU, and automatically tests and judges the operational stability of the OLT.

Description

Technical Field

[0001] This invention belongs to the field of PON network communication technology, specifically relating to an automatic detection system, method, device, and platform for OLT stability control using optical path. Background Technology

[0002] Currently, Passive Optical Network (PON) systems utilize point-to-multipoint tree-structured fiber optic distribution networks for information transmission. This wired point-to-multipoint physical topology typically consists of a passive optical distribution network connecting the OLT (Optical Line Terminal) at the central office and the ONU (Optical Unit) devices at the user side. In a PON system, a single OLT supports a large number of ONU optical terminals; for example, a GPONOLT can connect 128 ONU devices per optical port. Multiple ONU devices share the same optical fiber medium for communication with the OLT. The optical fiber medium is susceptible to various factors during transmission, including potential physical damage to the optical path. Furthermore, time-division multiplexing / multiple access (TDM / MPA), wavelength-division multiplexing (WDM), and orthogonal frequency-division multiplexing (OFDM) technologies are used in fiber optic transmission. Therefore, the OLT requires strong optical path stability to ensure normal service transmission. Because the connection between the OLT and ONU devices is a passive optical distribution network, arbitrary optical power adjustment and optical signal switching are not possible.

[0003] In other words, the passive optical network in which existing OLT equipment is located cannot arbitrarily simulate one or more optical power adjustments and optical signal switching in the optical path. In the event of an OLT optical path abnormality, it is impossible to quickly locate and simulate the abnormality, which brings difficulties to the research and development and testing of OLT.

[0004] Therefore, existing passive optical networks (OLTs) cannot arbitrarily simulate one or more optical power adjustments and optical signal switches in the optical path. Furthermore, they cannot quickly locate and simulate OLT optical path anomalies, which poses difficulties for OLT research and development and testing. There is an urgent need to design and develop an automatic detection system, method, device, and platform for OLT stability control using optical path. Summary of the Invention

[0005] To overcome the shortcomings and difficulties of the existing technology, the purpose of this invention is to provide an automatic detection system, method, device and platform for OLT stability using optical path control, which automatically detects the working stability of OLT, and provides important practical reference and application significance for judging whether OLT can still work normally when encountering problems such as interference / attenuation / shutdown in the optical path.

[0006] The primary objective of this invention is to provide an automatic detection system for OLT stability using optical path control;

[0007] The second objective of this invention is to provide an automatic detection method for OLT stability using optical path control;

[0008] The third objective of this invention is to provide an automatic detection device for OLT stability controlled by an optical path;

[0009] The fourth objective of this invention is to provide an automatic detection platform for OLT stability using optical path control;

[0010] The first objective of this invention is achieved as follows: the system includes an OLT device and an ONU device, and an optical path control device is provided between the OLT device and the ONU device;

[0011] A control host is provided on one side of the optical path control device. The control host sends test commands to the data analyzer and OLT through the network port, or sends test commands to the optical path control device through the serial port.

[0012] Furthermore, the optical path control device is also equipped with an optical attenuation regulator for adjusting the attenuation value;

[0013] The light decay regulator is controlled to rotate by a stepper motor; the stepper motor is driven and controlled by a stepper motor driver.

[0014] Furthermore, the optical path control device includes a circuit control unit for automatic detection of OLT stability;

[0015] The specific circuit in the circuit control unit is as follows: a 1X1 locking optical switch chip controls the optical path switch, and a ULN2003A chip drives a stepper motor to rotate the fixture, thereby controlling the optical attenuation regulator.

[0016] The second objective of this invention is achieved as follows: the method includes the steps of:

[0017] Obtain stability detection instructions, and control the network analysis instrument to load the corresponding service flow according to the detection instructions;

[0018] Determine whether there is packet loss in the PON service data stream and generate the first packet loss rate corresponding to the packet loss in real time;

[0019] Obtain abnormal data from the simulated OLT optical path or normal optical path data after restoring the default state. Based on the abnormal data from the simulated OLT optical path and the normal optical path data after restoring the default state, determine whether there is any impact on the PON service data flow.

[0020] Obtain the optical path recovery test command, load the service data stream for each test PON port through the data analyzer, and generate the corresponding second packet loss rate based on the number of uplink and downlink data transmission and reception packets of the OLT PON;

[0021] Based on the second packet loss rate, OLT operational stability data is determined and generated, and the OLT operational stability data is stored in real time.

[0022] Furthermore, the process involves sending test commands to the optical path control device connected to the OLT PON port via the serial port of the control host to restore the optical path, and using a data analyzer to load service data streams onto each test PON port. After 30 minutes of service loading, the program automatically calculates the packet loss rate based on the number of uplink and downlink data transmission and reception packets of the OLT PON, thereby determining the stability of the OLT operation.

[0023] Furthermore, the step of acquiring a stability detection command and controlling the network analysis instrument to load the corresponding service flow according to the detection command also includes:

[0024] The system acquires control commands indicating that the optical path switch is in the open state and the optical attenuation modulator is at its minimum attenuation value.

[0025] Furthermore, the step of determining whether there is packet loss in the PON service data stream and generating a packet loss rate corresponding to the packet loss in real time also includes:

[0026] Based on the packet loss rate, real-time data on the normal or abnormal stability of the OLT is generated and displayed.

[0027] Furthermore, the step of acquiring abnormal data from the simulated OLT optical path or normal optical path data after restoring the default state, and determining whether there is any impact on the PON service data flow based on the abnormal data from the simulated OLT optical path and the normal optical path data after restoring the default state, further includes:

[0028] Determine whether the optical path attenuation is within the PON operating range; when the optical path signal is within the normal transmission and reception range of the OLT, the data service loaded on the OLT PON1 port is normal; when the optical signal exceeds the normal operating range of the OLT PON, the PON1 data service is abnormal. The automated program automatically determines the PON port abnormality and detects whether the service data stream loading under other normal PON ports is affected, thereby determining the stability of the OLT operation.

[0029] The third object of the present invention is achieved as follows: the apparatus comprises:

[0030] The first acquisition unit is used to acquire stability detection instructions and, according to the detection instructions, control the network analysis instrument to load the corresponding service flow.

[0031] The first determination generation unit is used to determine whether there is packet loss in the PON service data stream and to generate a first packet loss rate corresponding to the packet loss in the service data stream in real time.

[0032] The second acquisition unit is used to acquire abnormal data of the simulated OLT optical path or normal optical path data after restoring the default state, and to determine whether there is any impact on the PON service data flow based on the abnormal data of the simulated OLT optical path and the normal optical path data after restoring the default state, respectively.

[0033] The third acquisition unit is used to acquire the optical path recovery test command, load the service data stream on each test PON port through the data analyzer, and generate the corresponding second packet loss rate according to the number of uplink and downlink data transmission and reception packets of the OLT PON.

[0034] The second determination and generation unit is used to determine and generate OLT operation stability data based on the second packet loss rate, and to store the OLT operation stability data in real time.

[0035] The fourth objective of this invention is achieved as follows: it includes a processor, a memory, and a control program for an automatic OLT stability detection platform controlled by an optical path;

[0036] The processor executes the control program for the OLT stability automatic detection platform using optical path control, and the control program is stored in the memory. The control program implements the method for automatic detection of OLT stability using optical path control.

[0037] This invention provides a system comprising an OLT device and an ONU device, with an optical path control device positioned between the OLT and the ONU devices. A control host is located on one side of the optical path control device. The control host issues test commands to the data analyzer and OLT via a network port, or to the optical path control device via a serial port. The invention also includes corresponding methods, devices, and a platform. In the optical network transmitting data between the OLT and each ONU, the optical path control device controls one or more optical paths in the transmission path between the OLT and ONUs, and automatically tests and assesses the operational stability of the OLT.

[0038] In other words, after adding this testing device, one or more optical signals in the PON optical path of the optical network where the OLT is located can be switched and the optical power can be adjusted at will. It can also automatically load service traffic, automatically determine whether the OLT is working properly, and use the test method of simulating optical path anomalies to achieve the purpose of testing the stability of the OLT. This provides important practical reference and application significance for OLT product development and testing. Attached Figure Description

[0039] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0040] Figure 1 This is a schematic diagram of the test network for an automatic detection system for OLT stability controlled by an optical path according to the present invention;

[0041] Figure 2 This is a schematic diagram of the optical path control device test network of an automatic detection device for OLT stability using optical path control according to the present invention;

[0042] Figure 3 for Figure 2 Functional diagram of the mechanical optical switch circuit (locking type) in module A;

[0043] Figure 4 for Figure 2 Specific circuit diagram for the control of module A in the middle section;

[0044] Figure 5 for Figure 2 Schematic diagram of the rotary optical decay adjustment function circuit in module B;

[0045] Figure 6 for Figure 2 Specific circuit diagram for the control of module B in the middle module;

[0046] Figure 7 This is a schematic diagram of the first stage operation process of an automatic detection method for OLT stability using optical path control according to the present invention;

[0047] Figure 8 This is a schematic diagram of the second stage (S4-S7) of the automatic detection method for OLT stability using optical path control according to the present invention.

[0048] Figure 9 This is a schematic diagram of the second stage (S8-S11) of the automatic detection method for OLT stability using optical path control according to the present invention.

[0049] Figure 10 This is a schematic diagram of the third stage of the automatic detection method for OLT stability using optical path control according to the present invention.

[0050] Figure 11 This is a schematic diagram of the fourth stage of the automatic detection method for OLT stability using optical path control according to the present invention.

[0051] Figure 12This is a schematic diagram of the automated program operation of an automatic detection method for OLT stability using optical path control according to the present invention;

[0052] Figure 13 This is a schematic diagram of the automatic detection method for OLT stability using optical path control according to the present invention;

[0053] Figure 14 This is a schematic diagram of the architecture of an automatic OLT stability detection device controlled by an optical path according to the present invention;

[0054] Figure 15 This is a schematic diagram of an automatic detection platform architecture for OLT stability using optical path control according to the present invention;

[0055] The objectives, features, and advantages of this invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0056] To facilitate a clearer understanding of the objectives, technical solutions, and advantages of this invention, the invention will be further described below in conjunction with the accompanying drawings and specific embodiments. Those skilled in the art can easily understand other advantages and effects of this invention from the content disclosed in this specification.

[0057] This invention can also be implemented or applied through other different specific examples, and various details in this specification can also be modified and changed based on different viewpoints and applications without departing from the spirit of this invention.

[0058] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0059] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Secondly, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0060] Preferably, the automatic detection method for OLT stability using optical path control of the present invention is applied in one or more terminals or servers. The terminal is a device capable of automatically performing numerical calculations and / or information processing according to pre-set or stored instructions, and its hardware includes, but is not limited to, microprocessors, application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), digital signal processors (DSPs), embedded devices, etc.

[0061] The terminal can be a desktop computer, laptop, handheld computer, or cloud server, etc. The terminal can interact with the customer via a keyboard, mouse, remote control, touchpad, or voice control device.

[0062] This invention provides an automatic detection system, method, device, and platform for OLT stability control using optical paths.

[0063] like Figure 13 The diagram shown is a flowchart of an automatic detection method for OLT stability using optical path control, provided in an embodiment of the present invention.

[0064] In this embodiment, the method for automatic detection of OLT stability using optical path control can be applied to terminals or fixed terminals with display functions. The terminals are not limited to personal computers, smartphones, tablets, desktop computers or all-in-one computers with cameras, etc.

[0065] The automatic stability detection method for OLT controlled by optical path described above can also be applied to a hardware environment consisting of a terminal and a server connected to the terminal via a network. The network includes, but is not limited to, a wide area network (WAN), a metropolitan area network (MAN), or a local area network (LAN). The automatic stability detection method for OLT controlled by optical path in this embodiment can be executed by the server, by the terminal, or by both the server and the terminal.

[0066] For example, for terminals requiring automatic OLT stability detection using optical path control, the automatic OLT stability detection function provided by the method of this invention can be directly integrated into the terminal, or a client for implementing the method of this invention can be installed. Alternatively, the method provided by this invention can also run on servers or other devices in the form of a Software Development Kit (SDK), providing an interface for the automatic OLT stability detection function using optical path control. Terminals or other devices can then implement the automatic OLT stability detection function using optical path control through the provided interface.

[0067] The present invention will be further described below with reference to the accompanying drawings.

[0068] like Figure 1-15 As shown, the present invention provides an automatic detection system for OLT stability using optical path control. The system includes an OLT device and an ONU device, characterized in that an optical path control device is provided between the OLT device and the ONU device.

[0069] A control host is provided on one side of the optical path control device. The control host sends test commands to the data analyzer and OLT through the network port, or sends test commands to the optical path control device through the serial port.

[0070] The optical path control device is also equipped with an optical attenuation regulator for adjusting the attenuation value.

[0071] The light decay regulator is controlled to rotate by a stepper motor; the stepper motor is driven and controlled by a stepper motor driver.

[0072] The optical path control device includes a circuit control unit for automatic detection of OLT stability;

[0073] The specific circuitry within the control unit consists of: a 1x1 locking optical switch chip controlling the optical path switch; and a ULN2003A chip driving a stepper motor to rotate a fixture, thereby controlling the optical attenuation modulator.

[0074] Specifically, in this embodiment of the invention, the present invention provides an optical path simulation control device and a test method for automatically testing the stability of an OLT using the device. In an optical network in which the OLT transmits data with each ONU, the optical path control device is used to control one or more optical paths in the transmission path between the OLT and the ONU, and the device is used to automatically test and judge the operational stability of the OLT.

[0075] To achieve the above objectives, the present invention is implemented according to the following technical solution: Optical path control device: An optical path control device is added to the original passive optical network. This device communicates with the computer host via a serial port and controls the switch of each optical path and the rotation of the stepper motor to adjust the intensity of optical attenuation through IO, so as to simulate abnormal changes in the optical path.

[0076] In the first phase, an optical path control device is connected between the OLT and ONU devices, and the PON optical path of the OLT is in the normal transmission and reception range. The computer control host sends test commands to the data analyzer and OLT through the network port, so that the service automatically loads the data stream for testing. The system automatically detects whether the OLT is working properly based on the number of uplink and downlink data transmission and reception packets of the OLT.

[0077] In the second phase, a computer-controlled host is used to send test commands to the optical path control device via serial port. The system automatically simulates one or more optical path anomalies according to a pre-set program (controlling optical path opening / closing or attenuation changes). It detects the data loading test status of the abnormal PON optical path of the OLT and monitors whether the ONU service loading traffic of other normal optical paths is affected. Based on the number of uplink and downlink data transmission and reception packets of the OLT, the system automatically detects and determines whether the OLT is working properly.

[0078] In the third stage, the abnormal optical path is restored to normal. The system checks whether the signal of each optical path of the OLT is normal. The system automatically detects and judges whether the OLT is working properly based on the number of uplink and downlink data transmission and reception messages of the OLT.

[0079] In the fourth stage, repeat the above operations. The number of repetitions can be set automatically by the system program, and the test results will be recorded.

[0080] By using this device and testing method to verify the OLT equipment, the goal of automatically detecting the working stability of the OLT can be achieved through optical path control.

[0081] like Figure 13 As shown, to achieve the above-mentioned objective, this invention provides an automatic detection method for OLT stability using optical path control. The method includes the following steps:

[0082] S01. Obtain the stability detection command, and control the network analysis instrument to load the corresponding service flow according to the detection command;

[0083] S02. Determine whether there is packet loss in the PON service data stream and generate the first packet loss rate corresponding to the packet loss in the service data stream in real time;

[0084] S03. Obtain abnormal data from the simulated OLT optical path or normal optical path data after restoring the default state. Based on the abnormal data from the simulated OLT optical path and the normal optical path data after restoring the default state, determine whether there is any impact on the PON service data flow.

[0085] S04. Obtain the optical path recovery test command, load the service data stream for each test PON port through the data analyzer, and generate the corresponding second packet loss rate based on the number of uplink and downlink data transmission and reception packets of the OLT PON.

[0086] S05. Based on the second packet loss rate, determine and generate OLT operation stability data, and store the OLT operation stability data in real time.

[0087] The process involves sending test commands to the optical path control device connected to the OLT PON port via the serial port of the control host to restore the optical path, and using a data analyzer to load service data streams onto each test PON port. After 30 minutes of service loading, the program automatically calculates the packet loss rate based on the number of uplink and downlink data transmission and reception packets of the OLT, thereby determining the stability of the OLT operation.

[0088] The step of obtaining the stability detection command and controlling the network analysis instrument to load the corresponding service flow according to the detection command also includes:

[0089] S011, Obtain control commands indicating that the optical path switch is in the open state and the optical attenuation regulator is at the minimum attenuation value.

[0090] The method of determining whether there is packet loss in the PON service data stream and generating a packet loss rate corresponding to the packet loss in real time also includes:

[0091] S021. Based on the packet loss rate, generate and display normal or abnormal data on the OLT's operational stability in real time.

[0092] The step of acquiring abnormal data from the simulated OLT optical path or normal optical path data after restoring the default state, and determining whether there is any impact on the PON service data flow based on the abnormal data from the simulated OLT optical path and the normal optical path data after restoring the default state, further includes:

[0093] S031. Determine whether the optical path attenuation is within the PON operating range; where, when the optical path signal is within the normal transmission and reception range of the OLT, the data service loaded on the OLT PON1 port is normal; when the optical signal exceeds the normal operating range of the OLT PON, the PON1 data service is abnormal. The automated program automatically determines the PON port abnormality and detects whether the service data stream loading under other normal PON ports is affected, thereby determining the stability of the OLT operation.

[0094] Specifically, in this embodiment of the invention, an application network for adding a testing device is incorporated between the OLT and the ONU, such as... Figure 1 As shown. The testing method is as follows:

[0095] Phase 1: An optical path control device (such as...) is connected between the OLT and ONU equipment. Figure 2 The optical path control device is set to the normal optical path by default. The ONU services are configured via the OLT, and the automated test program is run. (Flowchart shown). Figure 7 ):

[0096] S1, controlled by a command sent via the serial port of the host computer, puts the optical path switch in the open state and the optical attenuation regulator at its minimum attenuation value. At this time, the PON optical path of the OLT is in the normal transmission and reception range.

[0097] S2 sends test commands to the data analyzer and OLT via the network port of the control host, as shown in the network diagram in this example, so that the PON 1-4 ports of the OLT automatically carry the data stream.

[0098] S3, run for 5 minutes to observe the OLT system's operating status and the data packet loss rate of the OLT PON and uplink ports. The automated program automatically calculates the packet loss rate by calling the network analyzer interface data and comparing the number of uplink and downlink data packets sent and received by the OLT, thereby judging the OLT's operational stability.

[0099] Phase Two: After the PON port optical path of the OLT is normally carrying service data flow during testing, the automated test program simulates an abnormality in the OLT's optical path by controlling the optical path control device. (S4-S7 flowchart shown) Figure 8 ), S8-S11 flowchart (e.g.) Figure 9 ),:

[0100] S4: The host sends a test command to the optical path control device connected to the OLT PON1 port via the serial port, so that the optical path switch is in the off state. The automatic detection program detects that the PON1 optical path is abnormal, and the data streams of PON2, PON3, and PON4 ports continue to load. The abnormality of the PON1 optical path does not affect the normal operation of other PONs.

[0101] S5, perform S4 operation sequentially on OLT PON 2, PON 3, and PON 4 to observe whether the abnormal optical path affects the loading of PON services on other normal optical paths, thereby judging the stability of OLT operation.

[0102] S6 uses a combination of methods to simultaneously shut down two PON port optical paths, observes whether the abnormal optical path affects the loading of PON services on other normal optical paths, and thus judges the stability of OLT operation.

[0103] S7 uses a combination of methods to simultaneously shut down the optical paths of 3 PON ports, observes whether the abnormal optical path affects the loading of PON services on other normal optical paths, and thus judges the stability of the OLT operation.

[0104] S8, the optical path control device returns to the default state as a normal optical path. Under normal OLT PON data stream loading, a test command is sent to the optical path control device connected to the OLT PON1 port through the serial port of the control host. The optical attenuation regulator is rotated by a stepper motor. When the optical path signal is within the normal transmission and reception range of the OLT, the data service loaded on the OLT PON1 port is normal. When the optical signal exceeds the normal working range of the OLT PON, the PON1 data service is abnormal. The automated program automatically judges the abnormality of the PON port and checks whether the loading of service data streams under other normal PON ports is affected, thereby judging the stability of the OLT operation.

[0105] S9, perform S8 operation sequentially on OLT PON 2, PON 3, and PON 4 to observe whether the abnormal optical path affects the loading of PON services on other normal optical paths, thereby determining the stability of OLT operation.

[0106] S10 uses a combination of permutations and combinations to simultaneously adjust the optical attenuation of two PON port optical paths, observes whether the abnormal optical path affects the loading of PON services on other normal optical paths, and thus judges the working stability of the OLT.

[0107] S11 uses a combination of methods to simultaneously adjust the optical attenuation of the three PON port optical paths, observes whether the abnormal optical path affects the loading of PON services on other normal optical paths, and thus judges the working stability of the OLT.

[0108] In the third stage, the automated testing program restores the optical path control device to its normal state and performs long-term flow loading. Flowchart (as shown) Figure 10 ):

[0109] S12 sends test commands to the optical path control devices connected to the OLT PON1, PON2, PON3, and PON4 ports via the serial port of the control host to restore the optical path. It also uses a data analyzer to load service data streams onto each test PON port. After 30 minutes of service loading, the program automatically calculates the packet loss rate based on the number of uplink and downlink data transmission and reception packets of the OLT PON, thereby determining the stability of the OLT operation.

[0110] In the fourth stage, stages one, two, and three are repeated multiple times. The program uses the packet loss rate results to determine the long-term stability of the OLT. (Flowchart shown below) Figure 11 )

[0111] S13, Repeat steps S1 to S12. The automated test program automatically records the test results and assesses the stability of the OLT. See the automated program execution diagram for reference. Figure 12 (As shown).

[0112] To achieve the above objectives, the present invention also provides an automatic detection device for OLT stability controlled by an optical path, such as... Figure 14 As shown, the device includes:

[0113] The first acquisition unit is used to acquire stability detection instructions and, according to the detection instructions, control the network analysis instrument to load the corresponding service flow.

[0114] The first determination generation unit is used to determine whether there is packet loss in the PON service data stream and to generate a first packet loss rate corresponding to the packet loss in the service data stream in real time.

[0115] The second acquisition unit is used to acquire abnormal data of the simulated OLT optical path or normal optical path data after restoring the default state, and to determine whether there is any impact on the PON service data flow based on the abnormal data of the simulated OLT optical path and the normal optical path data after restoring the default state, respectively.

[0116] The third acquisition unit is used to acquire the optical path recovery test command, load the service data stream on each test PON port through the data analyzer, and generate the corresponding second packet loss rate according to the number of uplink and downlink data transmission and reception packets of the OLT PON.

[0117] The second determination and generation unit is used to determine and generate OLT operation stability data based on the second packet loss rate, and to store the OLT operation stability data in real time.

[0118] The process involves sending test commands to the optical path control device connected to the OLT PON port via the serial port of the control host to restore the optical path, and using a data analyzer to load service data streams onto each test PON port. After 30 minutes of service loading, the program automatically calculates the packet loss rate based on the number of uplink and downlink data transmission and reception packets of the OLT, thereby determining the stability of the OLT operation.

[0119] The first acquisition unit further includes:

[0120] The first acquisition module is used to acquire control commands indicating that the optical path switch is in the open state and the optical attenuation modulator is at the minimum attenuation value.

[0121] And / or, the first determination generation unit further includes:

[0122] The first generation module is used to generate and display normal or abnormal data on the OLT's operational stability in real time based on the packet loss rate.

[0123] And / or, the second acquisition unit further includes:

[0124] The first determination module is used to determine whether the optical path attenuation is within the PON operating range. When the optical path signal is within the normal transmission and reception range of the OLT, the data service loaded on the OLT PON1 port is normal. When the optical signal exceeds the normal operating range of the OLT PON, the PON1 data service is abnormal. The automated program automatically determines that the PON port is abnormal and detects whether the service data stream loading under other normal PON ports is affected, thereby determining the stability of the OLT operation.

[0125] In the embodiment of the device of the present invention, the specific details of the method and steps involved in the automatic detection of OLT stability using optical path control have been described above and will not be repeated here.

[0126] To achieve the above objectives, the present invention also provides an automatic detection platform for OLT stability using optical path control, such as... Figure 15 As shown, it includes a processor, memory, and a control program for an automatic OLT stability detection platform that uses optical path control.

[0127] Specifically, the processor executes the control program for the OLT stability automatic detection platform controlled by the optical path, and the control program is stored in the memory. This control program implements the steps of the method for automatically detecting OLT stability using optical path control, for example:

[0128] S01. Obtain the stability detection command, and control the network analysis instrument to load the corresponding service flow according to the detection command;

[0129] S02. Determine whether there is packet loss in the PON service data stream and generate the first packet loss rate corresponding to the packet loss in the service data stream in real time;

[0130] S03. Obtain abnormal data from the simulated OLT optical path or normal optical path data after restoring the default state. Based on the abnormal data from the simulated OLT optical path and the normal optical path data after restoring the default state, determine whether there is any impact on the PON service data flow.

[0131] S04. Obtain the optical path recovery test command, load the service data stream for each test PON port through the data analyzer, and generate the corresponding second packet loss rate based on the number of uplink and downlink data transmission and reception packets of the OLT PON.

[0132] S05. Based on the second packet loss rate, determine and generate OLT operation stability data, and store the OLT operation stability data in real time.

[0133] The specific details of the steps have been explained above and will not be repeated here.

[0134] In this embodiment of the invention, the built-in processor of the optical path-controlled OLT stability automatic detection platform can be composed of integrated circuits, such as a single packaged integrated circuit or multiple integrated circuits with the same or different functions, including combinations of one or more central processing units (CPUs), microprocessors, digital processing chips, graphics processors, and various control chips. The processor connects to various components using various interfaces and lines, and executes programs or units stored in memory, as well as calls data stored in memory, to perform various functions of optical path-controlled OLT stability automatic detection and data processing.

[0135] The memory is used to store program code and various data. It is installed in the OLT stability automatic detection platform controlled by optical path and can complete the access of program or data at high speed and automatically during operation.

[0136] The memory includes read-only memory (ROM), random access memory (RAM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), one-time programmable read-only memory (OTPROM), electrically erasable programmable read-only memory (EEPROM), compact disc read-only memory (CD-ROM) or other optical disc storage, disk storage, magnetic tape storage, or any other computer-readable medium capable of carrying or storing data.

[0137] This invention provides a system comprising an OLT device and an ONU device, with an optical path control device positioned between the OLT and the ONU devices. A control host is located on one side of the optical path control device. The control host issues test commands to the data analyzer and OLT via a network port, or to the optical path control device via a serial port. The invention also includes corresponding methods, devices, and a platform. In the optical network transmitting data between the OLT and each ONU, the optical path control device controls one or more optical paths in the transmission path between the OLT and ONUs, and automatically tests and assesses the operational stability of the OLT.

[0138] In other words, after adding this testing device, one or more optical signals in the PON optical path of the optical network where the OLT is located can be switched and the optical power can be adjusted at will. It can also automatically load service traffic, automatically determine whether the OLT is working properly, and use the test method of simulating optical path anomalies to achieve the purpose of testing the stability of the OLT. This provides important practical reference and application significance for OLT product development and testing.

[0139] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention. Therefore, the scope of protection of this patent should be determined by the appended claims.

Claims

1. A method for automatically detecting OLT stability using optical path control, characterized in that, The method includes the following steps: Obtain stability testing instructions and, based on the testing instructions, control the network analysis instrument to load the corresponding service flow; including: connecting an optical path control device between the OLT and ONU devices, ensuring that the PON optical path of the OLT is within the normal transmission and reception range, and using a computer control host to send test instructions to the data analyzer and OLT through the network port, so that the service automatically loads the data flow for testing; Determine whether there is packet loss in the PON service data stream and generate the first packet loss rate corresponding to the packet loss in real time; The process involves acquiring simulated abnormal data from the OLT optical path or normal optical path data after restoring to the default state. Based on the simulated abnormal data from the OLT optical path and the normal optical path data after restoring to the default state, it is determined whether there is any impact on the PON service data flow. This includes: using a computer control host to send test commands to the optical path control device via a serial port, automatically simulating one or more abnormal optical paths according to a set program; detecting the data service data loading test status in the abnormal PON optical path of the OLT, and monitoring whether the ONU service loading traffic of other normal optical paths is affected. Obtain the optical path recovery test command, load the service data stream for each test PON port through the data analyzer, and generate the corresponding second packet loss rate based on the number of uplink and downlink data transmission and reception packets of OLTPON; Based on the second packet loss rate, OLT operational stability data is determined and generated, and the OLT operational stability data is stored in real time.

2. The method for automatic detection of OLT stability using optical path control according to claim 1, characterized in that, The host computer sends test commands to the optical path control device connected to the OLT PON port via its serial port to restore the optical path. The data analyzer loads service data streams onto each test PON port. After 30 minutes of service loading, the program automatically calculates the packet loss rate based on the number of uplink and downlink data transmission and reception packets of the OLT PON, thereby determining the stability of the OLT operation.

3. The method of claim 1, wherein the OLT stability is automatically detected by controlling the optical path. The step of obtaining the stability detection command and controlling the network analysis instrument to load the corresponding service flow according to the detection command also includes: The system acquires control commands indicating that the optical path switch is in the open state and the optical attenuation modulator is at its minimum attenuation value.

4. The method of claim 1, wherein the OLT stability is automatically detected by controlling the optical path. The method of determining whether there is packet loss in the PON service data stream and generating a first packet loss rate corresponding to the packet loss in real time also includes: Based on the first packet loss rate, generate and display in real time normal or abnormal data on the OLT's operational stability.

5. The method of claim 1, wherein the OLT stability is automatically detected by controlling the optical path. The step of acquiring abnormal data from the simulated OLT optical path or normal optical path data after restoring the default state, and determining whether there is any impact on the PON service data flow based on the abnormal data from the simulated OLT optical path and the normal optical path data after restoring the default state, further includes: Determine whether the optical path attenuation is within the PON operating range. Specifically, when the optical path signal is within the normal transmission and reception range of the OLT, the loaded data service is normal. When the optical signal exceeds the normal operating range of the OLT PON, the data service corresponding to the optical path is abnormal. The automated program automatically determines the PON port abnormality and detects whether the loading of service data streams under other normal PON ports is affected, thereby determining the stability of the OLT operation.

6. An optical path control OLT stability automatic detection device, characterized in that, The device includes: The first acquisition unit is used to acquire stability detection instructions and control the network analysis instrument to load the corresponding service flow according to the detection instructions; including: an optical path control device between the OLT and ONU devices, and to ensure that the PON optical path of the OLT is in the normal transmission and reception range, and to use a computer control host to send test instructions to the data analyzer and OLT through the network port, so that the service automatically loads the data flow for testing; The first determination generation unit is used to determine whether there is packet loss in the PON service data stream and to generate a first packet loss rate corresponding to the packet loss in the service data stream in real time. The second acquisition unit is used to acquire abnormal data from simulated OLT optical paths or normal optical path data after restoring to the default state. Based on the abnormal data from simulated OLT optical paths and the normal optical path data after restoring to the default state, it determines whether there is any impact on PON service data flow. This includes: using a computer control host to send test commands to the optical path control device via a serial port, automatically simulating one or more optical path anomalies according to a set program; detecting the data service data loading test status in the abnormal PON optical path of the OLT, and monitoring whether the ONU service loading traffic of other normal optical paths is affected. The third acquisition unit is used to acquire the optical path recovery test command, load the service data stream for each test PON port through the data analyzer, and generate the corresponding second packet loss rate according to the number of uplink and downlink data transmission and reception packets of the OLT PON. The second determination and generation unit is used to determine and generate OLT operation stability data based on the second packet loss rate, and to store the OLT operation stability data in real time.

7. An optical path control (OLT) stability automatic detection platform, characterized in that, This includes the processor, memory, and control program for the OLT stability automatic detection platform that uses optical path control; Specifically, the processor executes the control program for the automatic OLT stability detection platform using optical path control, and the control program for the automatic OLT stability detection platform using optical path control is stored in the memory. The control program for the automatic OLT stability detection platform using optical path control implements the automatic OLT stability detection method using optical path control as described in any one of claims 1 to 5.

Images