WO2022249320A1 - Dispositif de réglage, procédé de réglage, et programme - Google Patents

Dispositif de réglage, procédé de réglage, et programme Download PDF

Info

Publication number
WO2022249320A1
WO2022249320A1 PCT/JP2021/019972 JP2021019972W WO2022249320A1 WO 2022249320 A1 WO2022249320 A1 WO 2022249320A1 JP 2021019972 W JP2021019972 W JP 2021019972W WO 2022249320 A1 WO2022249320 A1 WO 2022249320A1
Authority
WO
WIPO (PCT)
Prior art keywords
information
setting
control
network
unit
Prior art date
Application number
PCT/JP2021/019972
Other languages
English (en)
Japanese (ja)
Inventor
優士 小屋迫
貴大 鈴木
Original Assignee
日本電信電話株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 日本電信電話株式会社 filed Critical 日本電信電話株式会社
Priority to PCT/JP2021/019972 priority Critical patent/WO2022249320A1/fr
Priority to JP2023523793A priority patent/JP7498414B2/ja
Publication of WO2022249320A1 publication Critical patent/WO2022249320A1/fr

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]

Definitions

  • the present invention relates to a setting device, setting method and program.
  • IoT Internet of Things
  • DBA dynamic bandwidth allocation
  • the OLT uses surveillance cameras, etc. under the ONU.
  • There is a technique of analyzing data such as images transmitted from an IoT terminal and allocating bandwidths to ONUs based on the analysis results see, for example, Patent Document 1).
  • the OLT determines the allocated bandwidth based on the image compression ratio and the like.
  • the transmission functions in this case include physical layer functions such as frame synchronization, error correction and line coding.
  • the controller When performing motion control, the controller processes the data received from the controlled device.
  • the controller uses a numerical result (eg, settling time) obtained by processing the received data as an evaluation index to determine instructions and requests to the device to be controlled.
  • a numerical result eg, settling time
  • Such processing of received data depends on the control system design of the controller. Therefore, it was difficult to change the setting values of the communication device in the access section by data processing in the access section.
  • An apparatus includes an acquisition unit that acquires control result information, which is information about control performance obtained as a result of a controller controlling a device to be controlled that is connected to the controller via a network; Stores control information obtained by associating the control result information obtained by the obtaining unit with the setting information indicating the settings of the communication devices constituting the network, and the setting information when the control result information was obtained.
  • a control information storage unit a setting information determination unit that determines setting information to be set in the communication device based on the plurality of pieces of control information stored in the control information storage unit; and the settings determined by the setting information determination unit.
  • a setting unit that sets information in the communication device.
  • a setting method includes an acquisition step of acquiring control result information, which is information about control performance obtained as a result of a controller controlling a device to be controlled that is connected to the controller via a network; Control the control information obtained by associating the control result information obtained in the obtaining step with the setting information indicating the settings of the communication devices constituting the network, wherein the setting information is associated with the setting information when the control result information is obtained.
  • a step of storing in an information storage unit a step of determining setting information to be set in the communication device based on the plurality of pieces of control information stored in the control information storage unit; and setting the determined setting information in the communication device.
  • a program of one aspect of the present invention is a program for causing a computer to function as the above setting device.
  • a controller it is possible for a controller to perform settings suitable for controlling a device to be controlled via a network in a communication device.
  • FIG. 1 is a diagram showing a configuration example of a communication system according to a first embodiment of the present invention
  • FIG. It is a figure which shows the structural example of the communication system by the same embodiment. It is a figure which shows the structural example of the setting device by the same embodiment. It is a figure which shows the example of the setting information by the same embodiment. It is a sequence diagram showing the setting process of the communication system according to the same embodiment. It is a flowchart which shows the process of the setting device by the same embodiment. It is a figure which shows the connection of the setting device and OLT by the same embodiment. It is a figure which shows the structural example of the setting device by 2nd Embodiment. It is a flowchart which shows the process of the setting device by the same embodiment.
  • FIG. 12 is a diagram illustrating a configuration example of a communication system according to a third embodiment;
  • FIG. It is a figure which shows the structural example of the communication system by the same embodiment.
  • FIG. 1 is a diagram showing a configuration example of a communication system 10 according to the first embodiment.
  • the communication system 10 includes an OLT 20 , an ONU 30 , a device to be controlled 40 , a controller 50 , an OLT setting device 60 and a setting device 70 .
  • An administrator of network-related devices such as the OLT 20, ONU 30, OLT setting device 60, and setting device 70 is defined as a carrier, and an operator of the controller 50 that controls the controlled device 40 is defined as a user.
  • the OLT 20 and ONU 30 are communication devices that constitute the PON. Although only one ONU 30 is shown in FIG. 1, the number of ONUs 30 connected to the OLT 20 is arbitrary.
  • the PON system is a network of access sections for the controlled device 40 to communicate with the controller 50 .
  • a network of access sections is also described as an access network.
  • the OLT 20 allocates bandwidth to the ONU 30 .
  • the OLT 20 determines the allocated bandwidth including the timing and transmission amount for which the ONU 30 is permitted to transmit by means of the bandwidth allocation.
  • the OLT 20 notifies the ONU 30 of the determined allocated band.
  • the ONU 30 converts an upstream signal addressed to the controller 50 received from the controlled device 40 into an optical signal, and transmits the upstream signal to the OLT 20 in the allocated band.
  • the OLT 20 converts the received upstream signal from an optical signal to an electrical signal, and then transmits the electrical signal to the controller 50 .
  • the OLT 20 converts the downstream signal addressed to the controlled device 40 received from the controller 50 from an electrical signal to an optical signal, and then transmits the optical signal to the ONU 30 .
  • the ONU 30 converts the received downstream signal from an optical signal to an electrical signal, and then transmits the electrical signal to the control target device 40 .
  • the OLT 20 may be realized by a dedicated device, or by software on a computer device such as an edge server. Signals transmitted and received between the controller 50 and the OLT 20 may pass through the setting device 70 .
  • the controlled device 40 is, for example, an IoT terminal. Specific examples of the controlled device 40 are industrial devices such as sensors, motors, inverters, and robots, but are not limited to these.
  • the controlled device 40 executes the control command transmitted from the controller 50 by the downstream signal.
  • the controlled device 40 transmits data such as sensor values to the controller 50 by an upstream signal.
  • the controller 50 controls the controlled device 40 .
  • the controller 50 has a device control section 51 .
  • the device control unit 51 may be implemented by software on a computer device such as an edge server, or may be implemented by a dedicated device such as a PLC (Programmable Logic Controller).
  • the device control unit 51 transmits a control command to the control target device 40 by a downstream signal.
  • the device control unit 51 also receives an upstream signal transmitted from the controlled device 40 and reads numerical results such as sensor values from the upstream signal. The read numerical results are used, for example, in control calculations.
  • the device control unit 51 acquires control result information based on the read numerical result.
  • the control result information is information about control performance obtained as a result of controlling the controlled device 40 .
  • the information about the control performance may be data read from one or more upstream signals transmitted from the controlled device 40, or may be information obtained by processing the read data.
  • the device control unit 51 notifies the setting device 70 of the acquired control result information.
  • the OLT setting device 60 has an OLT setting section 61 .
  • the OLT setting unit 61 may be realized by software on a computer device, or may be realized by a dedicated device.
  • the OLT setting unit 61 changes setting information of the OLT 20 .
  • the OLT 20 operates according to setting information set by the OLT setting section 61 .
  • the setting information describes network setting values. Network settings are settings related to transmission and reception of signals in the access network.
  • the OLT 20 may also serve as the OLT setting device 60 . That is, the OLT 20 may have the OLT setting section 61 .
  • the setting device 70 rewrites the setting information of the OLT 20 based on the control result information received from the controller 50 .
  • the setting device 70 has a driver 71 .
  • the driver 71 may be realized by software on a computer device, or may be realized by a dedicated device.
  • the driver 71 stores control information in which the control result information obtained from the controller 50 is associated with the setting information of the OLT 20 when the control result information is obtained. After determining the setting information to be set in the OLT 20 based on the stored control information, the driver 71 instructs the OLT setting device 60 to set the determined setting information in the OLT 20 .
  • the OLT setting device 60 or OLT 20 may also serve as the setting device 70 . That is, the OLT setting device 60 or OLT 20 may have the driver 71 .
  • the user's controller 50 and the carrier's OLT setting device 60 are linked by the driver 71 .
  • the network setting value to be set in the OLT 20 of the carrier can be changed.
  • the OLT 20 can be set specifically for controlling the control target device 40 . It is also possible to set the OLT 20 in consideration of the trade-off between delay performance and band utilization efficiency.
  • the communication system of the present embodiment changes network settings of network communication devices to reduce delays in the access network based on information obtained from outside the carrier. For example, when the user's controller 50 performs motion control on the control target device 40, the controller 50 processes the data notified from the control target device 40, and the numerical result such as the settling time obtained is used as an evaluation index. and The settling time depends on the user's control system design for the device to be controlled 40 and the controller 50 , and is information obtained by secondary processing in the controller 50 of data notified from the device to be controlled 40 . That is, information that is difficult to obtain by data processing within the carrier.
  • the setting device 70 receives the evaluation index calculated by the controller 50 as control result information, and uses the received evaluation index to determine network setting values to be set in the OLT 20 .
  • the setting device 70 uses the evaluation index obtained by processing the data transmitted from the controlled device 40 in the user's controller 50 instead of the data itself transmitted from the controlled device 40, A processing policy for setting changes of network communication devices such as the OLT 20 is determined. Therefore, it becomes possible for the carrier and the user to work together to change the carrier's network settings. For example, since network setting values suitable for motion control can be set in the OLT 20, it is expected that the control performance will be improved.
  • the carrier exposes the interface of the driver 71 to external users so that the driver 71 can receive the evaluation index from the user's controller 50 .
  • a user can operate the controller 50 without considering network settings.
  • the driver 71 acquires the evaluation index from the controller 50 through the published interface, and changes the network settings of the OLT 20 based on the evaluation index. This allows a customized network to be provided according to the user's controller 50 .
  • the driver 71 may notify the user's equipment, such as the controller 50, of the current delay value in the access network, etc., through the exposed interface. Although the user does not have to consider network settings as described above, the controller 50 may change the settings of the device control section 51 based on the delay value or the like notified from the driver 71 .
  • FIG. 2 is a diagram showing the configuration of the communication system 10a in this embodiment. 2, the same parts as those of the communication system 10 shown in FIG. 1 are denoted by the same reference numerals, and descriptions thereof are omitted.
  • a communication system 10a shown in FIG. 2 differs from the communication system 10 shown in FIG.
  • the switch 80 demultiplexes upstream signals received from a plurality of controlled devices 40 and outputs the multiplexed signals to the ONUs 30 . Further, the switch 80 receives from the ONU 30 a signal in which downstream signals destined for different controlled devices 40 are multiplexed, and outputs the downstream signal to the destination controlled device 40, or branches the multiplexed signal into each signal. Output to the controlled device 40 .
  • FIG. 3 is a diagram showing a configuration example of the setting device 70.
  • the driver 71 of the setting device 70 includes a control monitoring unit 711, a control performance reading unit 712, a setting information reading unit 713, a comparison unit 714, a control information storage unit 715, a setting information determination unit 716, and a setting information input unit. 717 , a setting information validator 718 , and a change completion notifier 719 .
  • the control monitoring unit 711 detects the start of control of the controlled device 40 by the controller 50 .
  • the control performance reading unit 712 reads control result information from the controller 50 and transfers the read control result information to the comparison unit 714 .
  • the setting information reading unit 713 reads the setting information of the OLT 20 when the control result information is obtained from the OLT setting device 60 and transfers the read setting information to the comparison unit 714 .
  • the comparison unit 714 stores in the control information storage unit 715 control information that links the control result information and the setting information when the control result information was obtained.
  • the control information storage unit 715 stores time-series control information.
  • the comparison unit 714 compares multiple pieces of past control information stored in the control information storage unit 715 . For example, the comparison unit 714 checks the difference in the control result due to the setting information by comparing the control information of the time before last with the control information of the last time.
  • the setting information determination unit 716 determines setting information to be set in the OLT 20 based on the comparison result by the comparison unit 714 .
  • the setting information determining unit 716 may store in advance a model or the like linking the setting information of the OLT 20 and the expected control performance, and refer to the model to determine the setting information. This model can be obtained based on a plurality of pieces of control information stored in control information storage 715 .
  • the setting information input unit 717 inputs the setting information to the OLT 20 by outputting the setting information determined by the setting information determining unit 716 to the OLT setting device 60 .
  • the setting information validator 718 outputs to the OLT setting device 60 an instruction to reflect the setting information in the OLT 20 , such as restarting the OLT 20 .
  • the change completion notification unit 719 notifies the controller 50 that the setting information has been reflected in the OLT 20 .
  • the setting information reading unit 713 , setting information input unit 717 , setting information validating unit 718 and change completion notification unit 719 of the driver 71 may have the function of the OLT setting unit 61 .
  • the setting information reading unit 713, the setting information input unit 717, the setting information validating unit 718, and the change completion notification unit 719 perform data transmission/reception and control directly with the OLT 20 without going through the OLT setting device 60. .
  • FIG. 4 is a diagram showing an example of setting information.
  • the setting information set in the OLT 20 by the setting device 70 includes, for example, one or more of the network settings shown in FIG. FIG. 4 also shows the effects that can be expected by changing the values of the network settings.
  • Network settings include the DBA cycle, bandwidth, QoS (Quality of Service) of packets transmitted and received in the access network, and presence or absence of FEC (forward error correction) for packets transmitted and received in the access network.
  • the bandwidth network settings indicate how to allocate bandwidth to the ONUs 30 .
  • the effect of preventing packet loss is expected by changing which of the fixed band, guaranteed band, best effort band, etc., is used for band allocation to the ONU 30 .
  • the QoS value such as the priority used for packets sent and received with the ONU 30 and the setting value of whether to apply FEC to packets with the ONU 30, the effect of reducing delay and packet loss is expected to prevent
  • the OLT 20 allocates bandwidth to the ONU 30 by fixed bandwidth allocation or DBA according to network settings.
  • fixed bandwidth allocation the OLT 20 allocates a fixed bandwidth to the ONUs 30 .
  • DBA the OLT 20 allocates bandwidth based on the transmission permission request amount notified from the ONU 30 at the DBA cycle according to the network settings.
  • the OLT 20 determines the allocated band including the timing and transmission amount for which the ONU 30 is permitted to transmit by band allocation. At this time, the OLT 20 determines the allocated bandwidth according to the network setting of the bandwidth.
  • the OLT 20 notifies the ONU 30 of the determined allocated band.
  • the ONU 30 transmits an upstream signal addressed to the controller 50 received from the controlled device 40 to the OLT 20 in the allocated band.
  • the OLT 20 transmits the received upstream signal to the controller 50 . Also, the OLT 20 transmits to the ONU 30 the downstream signal addressed to the controlled device 40 received from the controller 50 .
  • the OLT 20 gives priority to upstream and downstream signals according to QoS network settings. In addition, the OLT 20 switches whether to perform FEC on uplink signals and downlink signals according to the FEC network settings.
  • FIG. 5 is a sequence diagram showing setting processing of the communication systems 10 and 10a. A case where the controller 50 performs motion control of the controlled device 40 will be described below as an example.
  • the controller 50 notifies the setting device 70 that it has transmitted a motion control start request for one trial to the controlled device 40 (step S1).
  • the setting device 70 reads from the controller 50 the control result information in which the settling time obtained by the previous trial motion control is set (step S2).
  • the setting device 70 determines the setting information of the OLT 20 by comparing the control information linking the current setting information of the OLT 20 and the control result information read from the controller 50 with the past setting information.
  • the setting device 70 inputs the determined setting information to the OLT 20 via the OLT setting device 60 (step S3).
  • the OLT setting device 60 returns OK (step S4).
  • the setting device 70 instructs the OLT setting device 60 to reflect the setting information input to the OLT 20 (step S5).
  • the OLT setting device 60 returns OK when the reflection of the setting information to the OLT 20 is successful (step S6).
  • the setting device 70 notifies the controller 50 of reflection OK (step S7).
  • the device control unit 51 of the controller 50 performs motion control on the controlled device 40 (step S8).
  • the device control unit 51 receives the sensor data obtained as a result of the controlled device 40 operating according to the instructed motion control by the upstream signal, and acquires the settling time based on the received data (step S9).
  • the acquired settling time is fed back to the setting device 70 when the next control is started.
  • the device control unit 51 may optimize motion control based on data received from the controlled device 40 or information obtained by processing the received data.
  • the device control unit 51 may acquire information on the state of the access network such as delay from the setting device 70 and optimize the motion control.
  • the communication systems 10 and 10a repeat the process from step S1.
  • FIG. 6 is a flowchart showing the processing of the setting device 70.
  • the control monitoring unit 711 of the setting device 70 sets the initial value 0 to the variable n representing the number of times of control (step S11).
  • the control monitoring unit 711 detects a motion control start request for one trial from the controller 50 (step S12).
  • the device control unit 51 of the controller 50 may notify the setting device 70 that a motion control start request has been sent.
  • the control monitoring unit 711 may monitor a signal transmitted by the controller 50 and detect a motion control start request.
  • the control monitor unit 711 adds 1 to the value of the variable n (step S13).
  • the control monitoring unit 711 notifies the control performance reading unit 712 of control start.
  • the control performance reading unit 712 determines whether or not the variable n is 1 (step S14). When the control performance reading unit 712 determines that the variable n is 1 (step S14: YES), the process returns to step S12. On the other hand, when the control performance reading unit 712 determines that the variable n is 2 or more (step S14: NO), the control result information in the (n-1)-th motion control from the controller 50 is transferred to the device control unit of the controller 50. 51 (step S15). The control result information indicates settling time. The control performance reading unit 712 outputs the read control result information to the comparing unit 714 .
  • the setting information reading unit 713 reads the current setting information of the OLT 20 from the OLT setting unit 61 of the OLT setting device 60 (step S16).
  • the current setting information corresponds to the setting information when the (n-1)th motion control is performed.
  • the setting information reading unit 713 outputs the read setting information to the comparison unit 714 .
  • the comparison unit 714 stores, in the control information storage unit 715, control information in which the control result information of the (n ⁇ 1)th trial read by the control performance reading unit 712 and the setting information read by the setting information reading unit 713 are linked. (step S17). If neither the control result information nor the setting information has the time information or the information representing the n-1th time added, the comparison unit 714 adds the time information or the information representing the n-1th time to the control information. .
  • the comparison unit 714 reads a plurality of pieces of past control information from the control information storage unit 715 and compares them (step S18).
  • the setting information determining unit 716 determines setting information to be set in the OLT 20 based on the comparison result of the comparing unit 714 (step S19).
  • the comparison unit 714 compares the i-th control information with the j-th (j ⁇ i) control information.
  • the i-th time is the n-1th time
  • the j-th time is the n-2th time, but they are not limited to these. If the control result indicated by the i-th control information is better than the control result indicated by the j-th control information, the comparison unit 714 compares the setting information indicated by the i-th control information with the setting information indicated by the j-th control information. Identify the network settings whose values have changed in .
  • the setting information determination unit 716 determines the network setting values to be set in the OLT 20 based on the identified change in the network setting values.
  • the setting information determination unit 716 determines that the value is within the upper limit of the network setting value and is greater than the i-th network setting value. is determined to be set in the OLT 20.
  • the setting information determination unit 716 may determine the amount by which the network setting value is increased based on the relationship between the difference between the i-th network setting value and the j-th network setting value and the amount of increase in control performance. It may be a value according to the type of setting.
  • the setting information determining unit 716 determines that the network setting value is equal to or greater than the lower limit of the network setting value and is higher than the i-th network setting value. It decides to set the OLT 20 to a small network setting value. Also, for example, if the control performance is not a numerical value (for example, ON/OFF), the setting information determination unit 716 may determine to set the i-th network setting value to the OLT 20 .
  • the setting information input unit 717 outputs setting information describing the network setting values determined by the setting information determining unit 716 to the OLT setting device 60 (step S20).
  • the OLT setting unit 61 of the OLT setting device 60 inputs the setting information received from the setting information input unit 717 to the OLT 20 .
  • the OLT setting unit 61 receives information from the OLT 20 indicating that the input of the setting information has succeeded, the OLT setting unit 61 notifies the setting device 70 of the success of input.
  • the setting information validation unit 718 of the setting device 70 confirms that the setting information has been input to the OLT 20 by receiving the notification of input success (step S21).
  • the setting information validating unit 718 outputs to the OLT setting device 60 an instruction for reflecting the setting information in the OLT 20, such as restarting the OLT 20 (step S22).
  • the OLT setting unit 61 of the OLT setting device 60 outputs an instruction to reflect the setting information to the OLT 20 .
  • the OLT 20 notifies the OLT setting unit 61 of the success of the reflection of the setting information.
  • the OLT setting unit 61 outputs a notification of successful reflection of setting information to the setting device 70 .
  • the change completion notification unit 719 of the setting device 70 outputs the received notification to the controller 50 (step S23).
  • the setting device 70 repeats the processing from step S12. By repeating the above process, the setting device 70 can use a gradient method or the like to determine network setting values of the OLT 20 that are optimal for motion control.
  • the setting information determination unit 716 Based on a plurality of pieces of control information stored in the control information storage unit 715, the setting information determination unit 716 creates a model showing the relationship between the control performance such as settling time and the combination of network setting values by machine learning or the like. may be created.
  • the setting device 70 does not perform the process of step S18, and in step S19, the setting information determination unit 716 refers to the created model and sets the network settings corresponding to the best control performance or the target control performance. select a combination of values for Note that the driver 71 acquires the target control performance from the controller 50 .
  • the setting information determination unit 716 generates setting information in which a combination of selected network setting values is set.
  • step S12 the control monitoring unit 711 of the setting device 70 sets the value of the control parameter to the device. Acquired from the control unit 51 or a motion control start request. Further, in step S15, the device control unit 51 of the controller 50 adds, to the control result information, the value of the control parameter set in the motion control start request when the control result information was obtained. In step S18, the comparison unit 714 reads and compares a plurality of pieces of control information in which the control parameter values acquired by the control monitoring unit 711 are set.
  • the setting information determination unit 716 creates a model representing the relationship between control performance, control parameter values, and combinations of network setting values based on a plurality of pieces of control information stored in the control information storage unit 715. Created by machine learning, etc.
  • the setting information determining unit 716 refers to the created model and selects a combination of network setting values corresponding to the control parameter values acquired by the control monitoring unit 711 and the best control performance or target control performance. .
  • the communication systems 10 and 10a use NEM ( Network Edge Mediator) and VOLTHA (Virtual OLT Hardware Abstraction).
  • NEM Network Edge Mediator
  • VOLTHA Virtual OLT Hardware Abstraction
  • FIG. 7 is a diagram showing connections between the setting device 70 and the OLT 20 when the communication systems 10 and 10a have NEM and VOLTHA.
  • OLT 20 and setting device 70 are connected via NEM 81 and VOLTHA 82 .
  • the setting information reading unit 713 reads the current setting information of the OLT 20 from the VOLTHA 82 through the NEM 81 .
  • the configuration information input unit 717 inputs the configuration information to the OLT 20 by, for example, inputting the Technology Profile in which the configuration information is rewritten through the NEM 81 to the VOLTHA 82 .
  • the configuration device further uses network information to determine configuration information for the OLT.
  • Network information is information about communication in the access network.
  • the communication system of this embodiment has a configuration including a setting device 72 shown in FIG. 8 instead of the setting device 70 of the communication system 10 shown in FIG. 1 and the communication system 10a shown in FIG.
  • FIG. 8 is a diagram showing a configuration example of the setting device 72 of this embodiment.
  • the driver 73 of the setting device 72 shown in FIG. 8 differs from the driver 71 of the setting device 70 shown in FIG.
  • a comparison unit 733 is provided instead of the comparison unit 714
  • a setting information determination unit 734 is provided instead of the setting information determination unit 716 .
  • the NW information monitoring unit 731 reads network information from the OLT setting device 60. For example, the NW information monitoring unit 731 reads network information when the control monitoring unit 711 detects a motion control start request.
  • the network information includes values of monitoring items such as delay in the access network, bandwidth used in the access network, the number of terminals under the control of the OLT 20, and QoS used in the access network.
  • the number of terminals under the control of the OLT 20 may be the number of controlled devices 40 or the sum of the number of controlled devices 40 and the number of terminals other than the controlled devices 40 .
  • the NW information monitoring unit 731 adds time information to the read network information and stores it in the control information storage unit 732 .
  • the control information storage unit 732 stores the history of network information in addition to the same information as the control information storage unit 715 of the first embodiment.
  • the comparison unit 733 stores the generated control information in the control information storage unit 732 in the same manner as the comparison unit 714 of the first embodiment.
  • the comparison unit 733 also identifies a plurality of pieces of network information similar to the current network information received from the NW information monitoring unit 731 .
  • the comparison unit 733 reads the control information corresponding to the time when the specified network information was obtained from the control information storage unit 715, and compares it in the same manner as the comparison unit 714 of the first embodiment.
  • the setting information determination unit 734 determines setting information to be set in the OLT 20 based on the comparison result in the comparison unit 714 .
  • the setting information input unit 717 outputs the setting information determined by the setting information determining unit 734 to the OLT setting device 60 .
  • the setting information determination unit 734 stores in advance a model that associates the setting information of the OLT 20, the network information, and the expected control performance, and refers to the model to determine the setting information corresponding to the current network information. You may This model can be obtained based on a plurality of control information and a plurality of network information stored in the control information storage unit 732 .
  • FIG. 9 is a flowchart showing the processing of the setting device 72.
  • the setting device 72 performs the same processing as steps S11 to S17 in FIG.
  • the NW information monitoring unit 731 reads network information from the OLT setting device 60 (step S31).
  • the NW information monitoring unit 731 adds time information or information representing the n-th time to the read network information and stores it in the control information storage unit 732 (step S32).
  • the network information obtained at the time of the n-th control is described as the n-th network information.
  • the comparison unit 733 compares a plurality of pieces of past control information, and further compares the network information when the control information was obtained with the n-th network information (step S33).
  • the setting information determination unit 734 determines setting information to be set in the OLT 20 based on the comparison result of the comparison unit 733 (step S34).
  • the comparison unit 733 reads the n ⁇ 1th control information and network information and the n ⁇ 2th control information and network information from the control information storage unit 732 .
  • the comparison unit 733 calculates the rate of change in network information.
  • the ratio of network information change is the ratio of the amount of change between the n-th network information and the n-1th network information to the amount of change between the n-1th network information and the n-2th network information.
  • the comparison unit 733 compares the control result indicated by the (n ⁇ 1)th control information with the control result indicated by the (n ⁇ 2)th control information.
  • the comparison unit 733 determines that the setting information indicated by the n-1th control information and the n- A network setting whose value has changed between the setting information indicated by the second control information is specified. If the n ⁇ 1th network setting value is greater than the n ⁇ 2th network setting value, the setting information determining unit 734 determines that the network setting value is within the upper limit of the network setting value and the n ⁇ 1th network setting value is larger than the n ⁇ 2th network setting value. It decides to set the OLT 20 to a network setting value that is greater than the value.
  • the setting information determination unit 734 determines the amount by which the network setting value is increased based on the difference between the n ⁇ 1th network setting value and the n ⁇ 2th network setting value, the amount of increase in control performance, and the change in network information. Determined based on relationship to proportion.
  • the comparison unit 733 identifies a plurality of pieces of network information similar to the n-th network information. For example, the comparison unit 733 identifies two pieces of network information.
  • the comparison unit 733 reads out the control information corresponding to the time when each of the specified network information was obtained from the control information storage unit 732, and compares them in the same manner as the comparison unit 714 of the first embodiment.
  • the setting information determination unit 734 determines setting information to be set in the OLT 20 based on the comparison result in the comparison unit 733, as in step S19 of FIG.
  • the processing of the setting device 72 after step S20 is the same as in FIG.
  • the NW information monitoring unit 731 may periodically read network information and store the read network information in the control information storage unit 732 .
  • the setting information determining unit 734 determines the value of each monitoring item, the control performance, and the value of each network setting, which are included in the network information, based on a plurality of pieces of control information and network information stored in the control information storage unit 732 .
  • a model showing the relationship with the combination of may be created by machine learning or the like.
  • the setting device 72 does not perform the process of step S33, and in step S34, the setting information determination unit 734 refers to the created model and compares the values of the monitoring items indicated by the current network information with the best Select a combination of network setting values corresponding to control performance or target control performance.
  • the setting information determination unit 734 generates setting information in which the selected combination of network setting values is set, and outputs the setting information to the setting information input unit 717 .
  • FIG. 10 is a diagram showing a configuration example of the communication system 11 of this embodiment.
  • the communication system 11 shown in FIG. 10 differs from the communication system 10 shown in FIG. 1 in that the MC 21 is provided in place of the OLT 20, the MC 31 is provided in place of the ONU 30, the OLT setting device 60 is not provided, The difference is that a setting device 74 is provided in place of the setting device 70 .
  • Each of MC21 and MC31 is connected to multiple types of transmission media.
  • MC21 and MC31 receive a signal transmitted through a transmission medium, convert the received signal according to the transmission medium on the output side, and output the converted signal to the transmission medium on the output side.
  • the MC 21 converts the downstream signal received from the controller 50 from an electrical signal to an optical signal and outputs it to the MC 31 , and converts the upstream signal received from the MC 31 from an optical signal to an electrical signal and outputs it to the controller 50 . .
  • the MC 31 converts the downstream signal received from the MC 21 from an optical signal to an electrical signal and outputs the signal to the controlled device 40, and converts the upstream signal received from the controlled device 40 from an electrical signal to an optical signal. Output to MC21.
  • the setting device 74 has a driver 75 .
  • the driver 75 performs the same processing as the driver 71 of the first embodiment, except that the MC 21 is the target for reading the setting information, setting the setting information, and validating the setting information.
  • FIG. 11 is a diagram showing a configuration example of a communication system 11a according to this embodiment. 11, the same parts as those of the communication system 11 shown in FIG. 10 are denoted by the same reference numerals, and description thereof will be omitted.
  • the communication system 11a shown in FIG. 11 differs from the communication system 11 shown in FIG.
  • the switch 80 demultiplexes upstream signals received from a plurality of controlled devices 40 and outputs the multiplexed signals to the MC 31 .
  • the switch 80 receives from the MC 31 a signal in which downlink signals destined for different controlled devices 40 are multiplexed, and outputs the downlink signal to the destination controlled device 40, or branches the multiplexed signal into each Output to the controlled device 40 .
  • FIG. 12 is a block diagram showing the configuration of the setting device 74. As shown in FIG. In FIG. 12, the same parts as those of the setting device 70 of the first embodiment shown in FIG. The driver 75 of the setting device 74 shown in FIG. 12 differs from the driver 71 of the setting device 70 shown in FIG. A configuration information reading unit 751 , a configuration information input unit 752 , a configuration information validation unit 753 and a change completion notification unit 754 are provided instead of the unit 719 .
  • the setting information reading unit 751 reads the setting information from the MC21.
  • the setting information indicates setting values such as a buffer amount.
  • the buffer amount is the capacity of the buffer that temporarily stores the signal that the MC21 transmits to the MC31 until the transmission timing.
  • the setting information input unit 752 inputs setting information to the MC21.
  • the setting information validating unit 753 outputs to the MC 21 an instruction to reflect the setting information, such as rebooting the MC 21 .
  • the change completion notification unit 754 receives notification of successful reflection of setting information from the MC 21 and outputs the received notification to the controller 50 .
  • the setting device 74 performs the same processing as the setting device 70 of the first embodiment shown in FIG. 6 except for the following points. That is, in step S16, the setting information reading unit 751 reads the setting information from the MC21. In step S20, the setting information input unit 752 outputs setting information to the MC21. In step S21, the setting information validation unit 753 receives information indicating that the setting information has been successfully input from the MC21, and in step S22, outputs an instruction to reflect the setting information to the MC21. In step S ⁇ b>23 , the change completion notification unit 754 receives notification of successful reflection of the setting information from the MC 21 and outputs the received notification to the controller 50 .
  • the communication system of this embodiment has a configuration including a setting device 76 shown in FIG. 13 instead of the setting device 74 of the communication system 11 shown in FIG. 10 and the communication system 11a shown in FIG.
  • FIG. 13 is a diagram showing a configuration example of the setting device 76 of this embodiment. 13, the same parts as those of the setting device 72 of the second embodiment shown in FIG. 8 are denoted by the same reference numerals, and descriptions thereof will be omitted.
  • the NW information monitoring unit 771 reads network information from the MC21.
  • the NW information monitoring unit 771 adds time information to the read network information and stores it in the control information storage unit 732 .
  • the setting device 76 performs the same processing as the setting device 72 of the second embodiment shown in FIG. 9 except for the following points. That is, the NW information monitoring unit 771 reads network information in step S31, and stores the read network information in the control information storage unit 732 in step S32. In steps S16 and steps S20 to S23, the setting device 76 performs the same processing as the setting device 74 of the third embodiment.
  • FIG. 14 is a diagram showing a hardware configuration example of the setting devices 70, 72, 74, and 76.
  • the setting devices 70 , 72 , 74 , 76 each include a processor 91 , a storage section 92 , a communication interface 93 and a user interface 94 .
  • the processor 91 is a central processing unit that performs calculations and controls.
  • the processor 91 is, for example, a CPU (central processing unit).
  • the processor 91 reads a program from the storage unit 92 and executes it.
  • the storage unit 92 further has a work area and the like used when the processor 91 executes various programs.
  • the communication interface 93 is for communicably connecting with other devices.
  • a user interface 94 is an input device such as a button, keyboard, or pointing device, or a display device such as a lamp or display.
  • a user interface 94 inputs an artificial operation. All or part of the functions of the drivers 71, 73, 75, and 77 are implemented by the processor 91 reading programs from the storage unit 92 and executing them. All or part of the functions of the drivers 71, 73, 75, 77 may be realized using hardware such as ASIC (Application Specific Integrated Circuit), PLD (Programmable Logic Device), FPGA (Field Programmable Gate Array), etc. good.
  • ASIC Application Specific Integrated Circuit
  • PLD Programmable Logic Device
  • FPGA Field Programmable Gate Array
  • the hardware configurations of the controller 50 and the OLT setting device 60 are also the same as in FIG. All or part of the functions of the device control unit 51 or the OLT setting unit 61 are realized by the processor 91 reading out a program from the storage unit 92 and executing it. All or part of the device control unit 51 or the OLT setting unit 61 may be implemented using hardware such as ASIC, PLD, and FPGA.
  • the setting device includes an acquisition unit, a control information storage unit, a setting information determination unit, and a setting unit.
  • the acquisition unit corresponds to the control performance reading unit 712 of the embodiment
  • the setting unit corresponds to the setting information input unit 717 and the setting information validating unit 718, the setting information input unit 752 and the setting information validating unit 753 of the embodiment. do.
  • the acquisition unit acquires control result information.
  • the control result information indicates information about control performance obtained as a result of a controller controlling a device to be controlled that is connected to the controller via a network.
  • the control information storage unit stores control information in which the control result information acquired by the acquisition unit is associated with the setting information when the control result information is acquired.
  • the control information indicates settings of the communication devices that make up the network.
  • the setting information determination unit determines setting information to be set in the communication device based on the control information stored in the control information storage unit. For example, the setting information determination unit determines the setting information when a control signal for the controlled device is transmitted from the controller. The setting unit sets the setting information determined by the setting information determining unit in the communication device.
  • the setting information determination unit may determine setting information to be set in the communication device based on a model representing the relationship between control performance and setting information.
  • a model is created using a plurality of pieces of control information stored in the control information storage unit.
  • the setting device may further include a network information acquisition unit that acquires network information indicating information about the network.
  • a network information acquisition unit corresponds to the NW information monitoring units 731 and 771 of the embodiments.
  • the control information storage section further stores the network information acquired by the network information acquisition section.
  • the setting information determination unit obtains the network information obtained by the network information obtaining unit when the control signal for the device to be controlled is transmitted from the controller, and the plurality of pieces of control information and the plurality of pieces of network information stored in the control information storage unit.
  • the setting information to be set in the communication device is determined based on.
  • the network information includes one or more of delay in the network, bandwidth of the network, priority of packets transmitted over the network, and number of control target devices connected to the network.
  • the setting information is one or more of the following: bandwidth allocation cycle, bandwidth in the network, priority of packets transmitted over the network, and whether or not to correct errors in packets transmitted over the network. including. If the communication device is a media converter, the configuration information includes the amount of buffer for temporarily storing transmission signals in the media converter.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Small-Scale Networks (AREA)

Abstract

Le présent dispositif de réglage comprend une unité d'acquisition, une unité de stockage d'informations de contrôle, une unité de détermination d'informations de réglage, et une unité de réglage. L'unité d'acquisition acquiert des informations de résultat de contrôle, qui se rapportent à des performances de contrôle obtenues suite au contrôle, par un contrôleur, d'un appareil à contrôler qui est connecté au contrôleur sur un réseau. L'unité de stockage d'informations de contrôle stocke des informations de contrôle dans lesquelles les informations de résultat de contrôle sont associées à des informations de réglage à un moment où les informations de résultat de contrôle sont obtenues. Les informations de réglage indiquent un réglage d'un dispositif de communication constituant un réseau. L'unité de détermination d'informations de réglage détermine, sur la base d'une pluralité d'éléments des informations de contrôle stockées dans l'unité de stockage d'informations de contrôle, les informations de réglage à régler pour le dispositif de communication. L'unité de réglage règle, pour le dispositif de communication, les informations de réglage déterminées par l'unité de détermination d'informations de réglage.
PCT/JP2021/019972 2021-05-26 2021-05-26 Dispositif de réglage, procédé de réglage, et programme WO2022249320A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/JP2021/019972 WO2022249320A1 (fr) 2021-05-26 2021-05-26 Dispositif de réglage, procédé de réglage, et programme
JP2023523793A JP7498414B2 (ja) 2021-05-26 2021-05-26 設定装置、設定方法及びプログラム

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2021/019972 WO2022249320A1 (fr) 2021-05-26 2021-05-26 Dispositif de réglage, procédé de réglage, et programme

Publications (1)

Publication Number Publication Date
WO2022249320A1 true WO2022249320A1 (fr) 2022-12-01

Family

ID=84228639

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2021/019972 WO2022249320A1 (fr) 2021-05-26 2021-05-26 Dispositif de réglage, procédé de réglage, et programme

Country Status (2)

Country Link
JP (1) JP7498414B2 (fr)
WO (1) WO2022249320A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009105949A (ja) * 2009-01-23 2009-05-14 Panasonic Corp ＱｏＳ制御を実行することが可能な端末
JP2017208743A (ja) * 2016-05-20 2017-11-24 三菱電機株式会社 中継装置及びフレーム転送方法
WO2020121910A1 (fr) * 2018-12-14 2020-06-18 日本電信電話株式会社 Système de communication, dispositif de communication, et procédé d'attribution de bande

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009105949A (ja) * 2009-01-23 2009-05-14 Panasonic Corp ＱｏＳ制御を実行することが可能な端末
JP2017208743A (ja) * 2016-05-20 2017-11-24 三菱電機株式会社 中継装置及びフレーム転送方法
WO2020121910A1 (fr) * 2018-12-14 2020-06-18 日本電信電話株式会社 Système de communication, dispositif de communication, et procédé d'attribution de bande

Also Published As

Publication number Publication date
JPWO2022249320A1 (fr) 2022-12-01
JP7498414B2 (ja) 2024-06-12

Similar Documents

Publication Publication Date Title
EP3748908B1 (fr) Procédé, système, dispositif de réseau, support d'informations permettant de créer une tranche de réseau
CN112799789B (zh) 一种节点集群管理方法、装置、设备及存储介质
Wong et al. Predictive resource allocation for Tactile Internet capable passive optical LANs
JP6426849B2 (ja) Ｓｄｔがｎｆｖ及びｓｄｎと連携するためのシステム及び方法
KR101830248B1 (ko) 엘이디 조명 제어 장치 및 이를 이용한 엘이디 조명 제어 시스템
EP3468151A1 (fr) Procédé et appareil de traitement de ressources d'accélération et système de virtualisation de fonction de réseau
JP4853821B2 (ja) 局側装置における帯域割当装置、帯域割当方法および帯域割当プログラム
US20080294828A1 (en) Slot interface access device, slot interface access method, and program therefor
WO2018224151A1 (fr) Dispositif et procédé de fourniture d'une tranche de réseau
CN111225153B (zh) 一种图像数据处理方法、图像数据处理装置及移动终端
KR20180028004A (ko) 복수의 워커 노드가 분산된 환경에서 데이터 스트림을 분석하고 처리하는 방법 및 장치, 그리고 태스크를 관리하는 방법 및 장치
US10306344B2 (en) Method and system for distributed control of large photonic switched networks
Bi et al. Resource allocation for ultra-low latency virtual network services in hierarchical 5G network
WO2022249320A1 (fr) Dispositif de réglage, procédé de réglage, et programme
CN112286698A (zh) 远程过程调用方法、装置以及远程过程调用执行方法
KR102123750B1 (ko) 네트워크 서비스 요청
CN117527479A (zh) 软总线组网连接方法、装置、设备及存储介质
Portela et al. An extended software defined optical networks slicing architecture
WO2016180436A1 (fr) Collecte de données basée sur des modèles pour un système réparti de traitement de données en flux
CN111836020B (zh) 监控系统中的码流传输方法、装置及存储介质
Bafna et al. Delay sensitive smoothed round robin (DS2R2) scheduler for high-speed optical networks
JP5937042B2 (ja) Ｔｄｍネットワークシステム及びそのスケジューリング方法
Świ a̧ tek ComSS–platform for composition and execution of streams processing services
Dolui et al. Towards Context Aware Adaptive Deployment in ML Applications Using State Machines
JP4026434B2 (ja) 光通信システム及びそれに用いる個体番号自動変更方法

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 2023523793

Country of ref document: JP

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 21942974

Country of ref document: EP

Kind code of ref document: A1