JP2011244106A - Power consumption amount monitoring device and power consumption amount monitoring method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a technology which is applied to an optical network in which one optical line terminal (OLT) and one or several optical network units (ONUs) perform point-to-point or point-to-multipoint communication through an optical fiber transmission path, and which allows for monitoring a power consumption amount of each ONU without increasing cost or a calculation amount of each ONU and without compressing an uplink band from each ONU to the OLT.SOLUTION: An OLT1 has stored a power consumption value of each activation state in each ONU2 before beginning monitoring a power consumption amount of each ONU2, and obtains information about duration of each activation state in each ONU2 when monitoring a power consumption amount of each ONU2. The OLT1 calculates a power consumption amount of each ONU2 based on the stored power consumption value of each activation state in each ONU2 and the obtained information about duration of each activation state in each ONU2.

Description

  The present invention is applied to an optical network in which one optical subscriber line terminating device and one or more optical network terminating devices perform point-to-point or point-to-multipoint communication via an optical fiber transmission line. The present invention relates to a power consumption monitoring device and a power consumption monitoring method for monitoring the power consumption of a network termination device.

  2. Description of the Related Art An optical network in which an optical subscriber line termination device (OLT) and an optical network termination device (ONU) communicate via an optical fiber transmission line is known.

  FIG. 1 is a diagram illustrating an optical network in which one OLT and one ONU perform point-to-point communication via an optical fiber transmission line. The optical network shown in FIG. 1 includes an OLT 1, an ONU 2, and an optical fiber transmission line 3. The OLT 1 and the ONU 2 perform point-to-point communication via the optical fiber transmission line 3.

  FIG. 2 is a diagram illustrating an optical network in which one OLT and a plurality of ONUs perform point-to-multipoint communication via an optical fiber transmission line. The optical network shown in FIG. 2 includes an OLT 1, ONUs 2-1, 2-2,..., 2-N, an optical fiber transmission line 3, and a splitter 4. The OLT 1 and the ONUs 2-1, 2-2,..., 2-N perform point-to-multipoint communication via the optical fiber transmission line 3 and the splitter 4.

  The optical network shown in FIG. 2 is a point-to-multipoint passive optical network (PON). As a typical standard of the gigabit class PON, there is EPON (Ethernet (registered trademark) PON) standardized by IEEE802.3. Non-Patent Document 1 discloses the configurations of OLT 1 and ONU 2 in EPON. In the IEEE 802.3av task force, 10G-EPON is being studied as a 10 gigabit class PON.

  FIG. 3 is a diagram illustrating OLT in EPON. The OLT 1 shown in FIG. 3 includes an SNI (Service Node Interface) port 11, a queue management unit 12, a PON signal processing unit 13, and a PON-IF (PON Interface) port 14. The downlink main signal is transmitted from the service node (not shown) to the ONU 2 via the SNI port 11, the queue management unit 12, the PON signal processing unit 13, and the PON-IF port 14. The upstream main signal is transmitted from the ONU 2 to a service node (not shown) via the PON-IF port 14, the PON signal processing unit 13, the queue management unit 12, and the SNI port 11.

  The PON signal processing unit 13 includes MPCP (Multi-Point Control Protocol) means, band allocation means, and OAM (Operations, Administration and Maintenance) means. The MPCP means requests each ONU 2 to report the amount of data in the queue provided in each ONU 2 to the OLT 1 using a report message. The bandwidth allocation means monitors the data amount of the queue in each ONU 2 based on the report message received from each ONU 2 and allocates the bandwidth to be used to each ONU 2. The OAM means exchanges control frames for maintenance monitoring with each ONU 2.

  FIG. 4 is a diagram illustrating an ONU in EPON. The ONU 2 illustrated in FIG. 4 includes a PON-IF port 21, a PON signal processing unit 22, a queue management unit 23, and a UNI (User Network Interface) port 24. The downlink main signal is transmitted from the OLT 1 to a terminal (not shown) via the PON-IF port 21, the PON signal processing unit 22, the queue management unit 23, and the UNI port 24. The upstream main signal is transmitted from a terminal (not shown) toward the OLT 1 through the UNI port 24, the queue management unit 23, the PON signal processing unit 22, and the PON-IF port 21.

  The PON signal processing unit 22 has MPCP means and OAM means. The MPCP means reports the amount of data in the queue provided in each ONU 2 to the OLT 1 using a report message. The OAM means exchanges a control frame for maintenance monitoring with the OLT 1.

Tsutsumu Tatsuta, Noriyuki Oota, Noriki Miki and Kiyomu Kumozaki, “Design philosophy and performance of GE-PON system. 6, no. 6, pp. 689-700, 2007. Ryogo Kubo, Junichi Kani, Yukihiro Fujimoto, Naoto Yoshimoto and Kiyomi Kumozaki, "Sleep and adaptive link rate control for power saving in 10G-EPON systems", Proceedings of the IEEE Global Telecommunications Conference, GLOBECOM 2009, pp. 1-6, 2009.

  As measures for power saving of PON, sleep function that pauses unused functions when there is no communication state (idle state), adaptive link rate function that changes link speed according to the traffic, and combination of these functions Implementation of a method is being considered. Non-Patent Document 2 discloses a sleep function, an adaptive link rate function, and a combination method of these functions in a 10G-EPON system. The OLT 1 can grasp the activation state (normal activation state, power saving activation state, low-speed link activation state, high-speed link activation state, etc.) of each ONU 2 by exchanging MPCP messages with the respective ONUs 2.

  As an approach for power saving of the PON, it is also considered that the OLT 1 monitors the power consumption amount of each ONU 2. Here, each ONU 2 measures the power consumption of each ONU 2 itself. Therefore, each ONU 2 needs to have a power consumption measurement function, which increases the cost and calculation amount of each ONU 2 itself. Furthermore, since each ONU 2 needs to report the measurement result of the power consumption amount to the OLT 1, the data amount of the control message is increased and the upstream band from each ONU 2 to the OLT 1 is compressed.

  In order to solve the above problems, the present invention is applied to an optical network in which one OLT and one or more ONUs perform point-to-point or point-to-multipoint communication via an optical fiber transmission line. Provided are a power consumption monitoring device and a power consumption monitoring method for monitoring the power consumption of each ONU without increasing the cost and calculation amount of each ONU and without pressing the upstream band from each ONU to the OLT. For the purpose.

  To achieve the above object, each optical network termination is based on the stored power consumption value of each activation state in each optical network termination device and the acquired information on the duration of each activation state in each optical network termination device. The power consumption of the device was calculated.

  Specifically, the present invention provides an optical network in which one optical subscriber line terminating device and one or more optical network terminating devices perform point-to-point or point-to-multipoint communication via an optical fiber transmission line. A power consumption value table storage unit that stores a power consumption value table that is associated with a plurality of activation states that each optical network termination device has and each optical network termination device is in each activation state; The duration information acquisition unit that acquires the duration information for which each optical network termination device continues each activation state when the power consumption amount of each optical network termination device is monitored, and the power consumption value table storage unit store the information The power consumption value of each activated state in each optical network termination device that has been Based on the duration information for each active state in the network termination device, a power consumption monitor apparatus characterized by comprising: a power consumption calculation unit for calculating the power consumption of the optical network termination device.

  According to this configuration, the power consumption of each optical network terminator is not increased without increasing the cost and calculation amount of each optical network terminator, and without pressing the upstream bandwidth from each optical network terminator to the optical subscriber line terminator. The amount can be monitored.

  In the present invention, there are a plurality of the optical network termination devices, and the power consumption calculation unit sums the power consumption of each optical network termination device for the plurality of optical network termination devices. A power consumption monitoring device that calculates the total power consumption of the optical network termination device.

  According to this configuration, not only can the power consumption of each optical network termination device be monitored, but also the total power consumption of a plurality of optical network termination devices can be monitored.

  Further, according to the present invention, the power consumption value table storage unit includes the number of the optical network termination devices, the number of states of the plurality of activation states for each optical network termination device, or the power consumption value for each of the plurality of activation states. The power consumption amount monitoring device updates the power consumption value table when updated.

  According to this configuration, even when the status of the optical network changes, the power consumption of each optical network termination device can be monitored.

  Further, the present invention is the power consumption monitoring apparatus, wherein the plurality of activation states include a normal activation state in which all functions of each optical network termination device are operating.

  According to this configuration, it is possible to monitor the power consumption of each optical network terminating device in various startup states including the normal startup state.

  Further, the present invention is the power consumption monitoring device, wherein the plurality of activation states include a power saving activation state in which a part of functions of each optical network termination device is suspended.

  According to this configuration, it is possible to monitor the power consumption of each optical network termination device in various activation states including the power saving activation state.

  Further, in the present invention, the plurality of activation states include a predetermined link speed activation state in which a link speed between each optical network termination device and the optical subscriber line termination device is a predetermined link speed. It is an electric energy monitoring device.

  According to this configuration, it is possible to monitor the power consumption of each optical network termination device in various activation states including a predetermined link speed activation state.

  Further, the present invention is applied to an optical network in which one optical subscriber line termination device and one or more optical network termination devices perform point-to-point or point-to-multipoint communication via an optical fiber transmission line. A power consumption value table that associates a plurality of activation states of each optical network termination device and a power consumption value when each optical network termination device is in each activation state is stored, and each optical network termination device indicates each activation state. Information on the duration to be continued is acquired when the power consumption amount of each optical network termination device is monitored, and the stored power consumption value of each activation state in each optical network termination device and each acquired optical network termination device The power consumption of each optical network terminating device is calculated based on the information on the duration of each active state in A power consumption monitoring method which is characterized in that.

  According to this configuration, the power consumption of each optical network terminator is not increased without increasing the cost and calculation amount of each optical network terminator, and without pressing the upstream bandwidth from each optical network terminator to the optical subscriber line terminator. The amount can be monitored.

  In the present invention, there are a plurality of the optical network termination devices, and the total power consumption of the plurality of optical network termination devices is obtained by summing the power consumption of each optical network termination device for the plurality of optical network termination devices. The power consumption monitoring method is characterized in that the power consumption is calculated.

  According to this configuration, not only can the power consumption of each optical network termination device be monitored, but also the total power consumption of a plurality of optical network termination devices can be monitored.

  Further, the present invention provides the power consumption when the number of the optical network termination devices, the number of states of the plurality of activation states for each optical network termination device, or the power consumption value for each of the plurality of activation states is updated. The power consumption monitoring method is characterized by updating a value table.

  According to this configuration, even when the status of the optical network changes, the power consumption of each optical network termination device can be monitored.

  The present invention increases the cost and calculation amount of each ONU applied to an optical network in which one OLT and one or more ONUs perform point-to-point or point-to-multipoint communication via an optical fiber transmission line. Thus, it is possible to provide a power consumption monitoring device and a power consumption monitoring method for monitoring the power consumption of each ONU without squeezing the upstream band from each ONU to the OLT.

It is a figure which shows the optical network which performs point-to-point communication. It is a figure which shows the optical network which performs point-to-multipoint communication. It is a figure which shows OLT in a prior art. It is a figure which shows ONU in a prior art. It is a figure which shows the power consumption amount monitoring method in Embodiment 1. FIG. It is a figure which shows OLT in Embodiment 1,2. It is a figure which shows the power consumption amount monitoring method in Embodiment 2. FIG. It is a figure which shows the power consumption amount monitoring method in Embodiment 3. It is a figure which shows the power consumption amount monitoring method in Embodiment 3, 4. FIG. It is a figure which shows OLT in Embodiment 3. FIG. It is a figure which shows OLT in Embodiment 3. FIG. It is a figure which shows the power consumption amount monitoring method in Embodiment 4. It is a figure which shows OLT in Embodiment 4. FIG. It is a figure which shows the operation apparatus in Embodiment 4. It is a figure which shows the power consumption amount monitoring method in Embodiment 4.

  Embodiments of the present invention will be described with reference to the accompanying drawings. The embodiments described below are examples of the present invention, and the present invention is not limited to the following embodiments. In the present specification and drawings, the same reference numerals denote the same components.

(Embodiment 1)
FIG. 5 is a diagram illustrating a power consumption monitoring method according to the first embodiment. FIG. 6 is a diagram illustrating the OLT according to the first embodiment. As illustrated in FIG. 5A, the optical network according to the first embodiment includes an OLT 1, an ONU 2, and an optical fiber transmission line 3. The configuration of the ONU 2 according to the first embodiment is the same as the configuration of the ONU 2 shown in FIG.

  The OLT 1 illustrated in FIG. 6 functions as a power consumption monitoring device, and includes an SNI port 11, a queue management unit 12, a PON signal processing unit 13, a PON-IF port 14, a duration information acquisition unit 15, and a power consumption value table storage. A unit 16, a power consumption calculation unit 17 for each OLT, and an operation port 18. The SNI port 11, the queue management unit 12, the PON signal processing unit 13, and the PON-IF port 14 shown in FIG. 6 are the same as the SNI port 11, the queue management unit 12, the PON signal processing unit 13 and the PON-IF shown in FIG. Similar to port 14.

  The PON signal processing unit 13 requests the ONU 2 to report the activation state of the ONU 2 to the OLT 1. As a specific example, the activation state may be reported when a transition of the activation state occurs. If the optical network shown in FIG. 5A is EPON or 10G-EPON, an MPCP message is used. Good. The PON signal processing unit 13 outputs information on the activation state of the ONU 2 to the duration information acquisition unit 15.

  When the power consumption of the ONU 2 is monitored, the duration information acquisition unit 15 inputs ONU 2 activation state information from the PON signal processing unit 13 and acquires the duration information shown in FIG. In the duration information shown in FIG. 5B, the duration time in which the startup state of the ONU 2 is the normal startup state and the power saving startup state is stored.

  The duration is the time that each activation state has continued. For example, when the normal startup state continues first, then the power saving startup state continues, and when the normal startup state lasts again last time, the normal startup time lasts for the time when the normal startup state continued first This is the sum of the time and the time that the normal activation state last last again.

  The normal activation state is an activation state in which all the functions of the ONU 2 are operating. The power saving activation state is an activation state in which some functions of the ONU 2 are suspended. Here, the activated state in which all the functions of the ONU 2 are operated is an activated state in which the functions of the ONU 2 are operated to the maximum and the power consumption value of the ONU 2 is almost maximized.

  The duration information acquisition unit 15 measures the time during which the normal activation state and the power saving activation state continue for a certain period of time, and outputs the duration information to the OLT per-OLT power consumption calculation unit 17 after the certain period of time. The duration information is refreshed every other time, and thereafter, these processes are repeated in order. In the duration information shown in FIG. 5B, the fixed time is 60 seconds, and the normal start state and the power saving start state during the fixed time are 20 seconds and 40 seconds, respectively.

  The power consumption value table storage unit 16 stores the power consumption value table shown in FIG. 5C before the power consumption of the ONU 2 is monitored. In the power consumption value table shown in FIG. 5C, the power consumption values when the ONU 2 activation state is the normal activation state and the power saving activation state are associated with the normal activation state and the power saving activation state of the ONU 2, respectively. And memorized.

  The power consumption value when the activation state of the ONU 2 is the normal activation state and the power saving activation state is measured before the power consumption amount of the ONU 2 is monitored, and the operation device 18 (not shown) or the like is connected via the operation port 18. The value is input to the power consumption value table storage unit 16. When the number of ONUs 2, the number of activation states for each ONU 2, or the power consumption value for each activation state is updated, these update information is used as operation information from an operation device (not shown) as power consumption value table update information. The data is input to the power consumption value table storage unit 16 via the port 18. The power consumption value table storage unit 16 outputs the stored or updated power consumption value table to the OLT power consumption calculation unit 17.

  The OLT power consumption calculation unit 17 inputs duration information from the duration information acquisition unit 15 and inputs a power consumption value table from the power consumption value table storage unit 16. Then, the power consumption calculation unit 17 for each OLT calculates the ONU 2 based on the duration of each activation state in the ONU 2 registered in the duration information and the power consumption value in each activation state in the ONU 2 registered in the power consumption value table. The power consumption of is calculated. Further, the power consumption calculation unit 17 for each OLT notifies the information on the power consumption of the ONU 2 to the operation device (not shown) via the operation port 18 as the power consumption information for each OLT 1.

  That is, when the ONU 2 is in the normal startup state, the OLT power consumption calculation unit 17 calculates the product of the duration 20 seconds in the normal startup state in the ONU 2 and the power consumption value 10 W in the normal startup state in the ONU 2. Is calculated as 200 Ws. Then, the OLT power consumption calculation unit 17 calculates the product of the duration 40 seconds of the power saving activation state in the ONU 2 and the power consumption value 2W of the power saving activation state in the ONU 2, so that the ONU 2 enters the power saving activation state. The power consumption when there is is calculated as 80 Ws. Further, the OLT power consumption calculation unit 17 calculates the total of the power consumption 200 Ws when the ONU 2 is in the normal startup state and the power consumption 80 Ws when the ONU 2 is in the power saving startup state, The power consumption in the ONU 2 is calculated as 280 Ws.

  Thus, the power consumption value when the activation state of the ONU 2 is the normal activation state and the power saving activation state is measured before the power consumption amount of the ONU 2 is monitored. The ONU 2 does not need to calculate the power consumption of the ONU 2 itself. Then, whether the ONU 2 is in the normal startup state or the power saving startup state is reported from the ONU 2 to the OLT 1 when the power consumption of the ONU 2 is monitored. The ONU 2 only needs to report the activation state of the ONU 2 itself. Therefore, it is possible to monitor the power consumption of the ONU 2 without increasing the cost or calculation amount of the ONU 2 and without pressing the upstream band from the ONU 2 to the OLT 1. Then, the update information of the optical network is reflected in the power consumption value table as the power consumption value table update information. Therefore, the power consumption of the ONU 2 can be monitored even when the status of the optical network changes.

(Embodiment 2)
FIG. 7 is a diagram illustrating a power consumption amount monitoring method according to the second embodiment. As illustrated in FIG. 7A, the optical network according to the second embodiment includes the OLT 1, the ONUs 2-1, 2-2, 2-3, the optical fiber transmission line 3, and the splitter 4. The configuration of the OLT 1 according to the second embodiment is the same as the configuration of the OLT 1 illustrated in FIG. The configuration of the ONU 2 of the second embodiment is the same as the configuration of the ONU 2 shown in FIG. In the following description, the difference between the second embodiment and the first embodiment will be mainly described.

  FIG. 7B shows the duration information acquired by the duration information acquisition unit 15. FIG. 7C shows a power consumption value table stored in the power consumption value table storage unit 16. In the ONU 2-1, there are a normal activation state and a power saving activation state as activation states. In the ONU 2-2, there are a 10G link activation state and a 1G link activation state. In the ONU 2-3, there are a 10G link activation state, a 1G link activation state, and a power saving activation state. The 10G link activation state and the 1G link activation state are activation states in which the link speed between the OLT 1 and the ONU 2 is 10 Gbps and 1 Gbps, respectively.

  The power consumption calculation unit 17 for each OLT calculates the power consumption in the ONU 2-1 as 10 W × 20 s + 2 W × 40 s = 280 Ws. The power consumption calculation unit 17 for each OLT calculates the power consumption in the ONU 2-2 as 8 W × 10 s + 3 W × 50 s = 230 Ws. The power consumption calculation unit 17 for each OLT calculates the power consumption in the ONU 2-3 as 9 W × 10 s + 5 W × 30 s + 1 W × 20 s = 260 Ws. The power consumption calculation unit 17 for each OLT calculates the total power consumption of the ONUs 2-1 2-2, and 2-3 as the power consumption for each OLT 1 and calculates 280 Ws + 230 Ws + 260 Ws = 770 Ws.

  In this way, the power consumption of each ONU 2 can be monitored and the total power consumption of a plurality of ONUs 2 can be monitored without increasing the cost or calculation amount of the ONU 2 and without compressing the upstream bandwidth from the ONU 2 to the OLT 1. Can be monitored. Even when the state of the optical network changes, the effect of the invention of the second embodiment can be obtained by updating the power consumption value table as in the first embodiment.

(Embodiment 3)
8 and 9 are diagrams illustrating a power consumption monitoring method according to the third embodiment. As shown in FIG. 8, the optical network according to the third embodiment includes an OLT 1, ONUs 2-1, 2-2,..., 2-6, an optical fiber transmission line 3, and splitters 4-1 and 4-2. The OLT 1 according to the third embodiment includes a control panel 1-c and OSUs (Optical Subscriber Units) 1-1, 1-2,..., 1-16. The configuration of the ONU 2 of the third embodiment is the same as the configuration of the ONU 2 shown in FIG. In the following description, the difference between the third embodiment and the second embodiment will be mainly described.

  The control panel 1-c controls the OSUs 1-1, 1-2,. The OSU 1-1 communicates with the ONUs 2-1, 2-2, 2-3, 2-4 via the optical fiber transmission line 3 and the splitter 4-1. The OSU 1-2 communicates with the ONUs 2-5 and 2-6 via the optical fiber transmission line 3 and the splitter 4-2. The OSUs 1-3, 1-4,..., 1-16 communicate with an ONU (not shown).

  The ONUs 2-1 2-2 and 2-5 are the first type ONUs 2. The ONUs 2-3 and 2-4 are the second type ONU2. The ONU 2-6 is a third type of ONU 2. The first to third types of ONUs 2 are different from each other in types such as used parts and activation states. In the first type ONUs 2-1 2-2, and 2-5, there are a normal activation state and a power saving activation state as activation states. In the second types of ONUs 2-3 and 2-4, there are a 10G link activation state and a 1G link activation state as activation states. In the third type ONU 2-6, there are a 10G link activation state, a 1G link activation state, and a power saving activation state as activation states. The ONU 2 type information is transmitted from the ONU 2 to the OLT 1 when the OLT 1 performs the ONU 2 discovery process before the power consumption of the ONU 2 is monitored.

  10 and 11 are diagrams showing an OLT according to the third embodiment. First, the OLT 1 shown in FIG. 10 will be described, and then the OLT 1 shown in FIG. 11 will be described.

  First, the OLT 1 shown in FIG. 10 will be described. The OSU 1-1 illustrated in FIG. 10A includes an SNI port 11-1, a queue management unit 12-1, a PON signal processing unit 13-1, and a PON-IF port 14-1. The SNI port 11-1, the queue management unit 12-1, the PON signal processing unit 13-1, and the PON-IF port 14-1 illustrated in FIG. 10A are the same as the SNI port 11 and the queue management unit illustrated in FIG. 12, similar to the PON signal processing unit 13 and the PON-IF port 14. The configurations of OSU1-2, 1-3,..., 1-16 are the same as the configuration of OSU1-1, and the processing of OSU1-1 will be mainly described.

  The control panel 1-c shown in FIG. 10B functions as a power consumption monitoring device, and includes a duration information acquisition unit 15-c, a power consumption value table storage unit 16-c, and an OLT power consumption calculation unit. 17-c and operation port 18-c.

  The PON signal processing unit 13-1 of the OSU 1-1 sends the activation state information of the ONUs 2-1, 2-2, 2-3, 2-4 to the duration information acquisition unit 15-c of the control panel 1-c. Output. The PON signal processing unit 13 (not shown) of the OSUs 1-2, 1-3,... Output to.

  The duration information acquisition unit 15-c acquires the duration information shown in FIG. 9A, and processes the duration information shown in FIG. 9A into the duration information shown in FIG. 9B. To do. In the duration information shown in FIG. 9A, the duration of each activated state is registered for each ONU 2. In the duration information shown in FIG. 9B, the duration of each activated state is registered for each type of ONU 2. The power consumption value table storage unit 16-c stores the power consumption value table shown in FIG. In the power consumption value table shown in FIG. 9C, the power consumption value of each activated state is registered for each type of ONU 2.

  The OLT power consumption calculation unit 17-c calculates the power consumption in the first type ONUs 2-1 2-2, and 2-5 as 10 W × 90 s + 2 W × 90 s = 1080 Ws. The power consumption calculation unit 17-c for each OLT calculates the power consumption in the second type ONUs 2-3 and 2-4 as 8 W × 11 s + 3 W × 109 s = 415 Ws. The OLT power consumption calculation unit 17-c calculates the power consumption of the third type ONU 2-6 as 9 W × 5 s + 5 W × 20 s + 1 W × 35 s = 180 Ws. The OLT power consumption calculation unit 17-c calculates 1080Ws + 415Ws + 180Ws = 1675Ws as the total power consumption of the ONUs 2-1, 2-2,.

  Next, the OLT 1 shown in FIG. 11 will be described. The OSU 1-1 illustrated in FIG. 11A includes an SNI port 11-1, a queue management unit 12-1, a PON signal processing unit 13-1, a PON-IF port 14-1, and a duration information acquisition unit 15-1. And a power consumption calculation unit 19-1 for each OSU. The SNI port 11-1, the queue management unit 12-1, the PON signal processing unit 13-1, and the PON-IF port 14-1 illustrated in FIG. 11A are the same as the SNI port 11 and the queue management unit illustrated in FIG. 12, similar to the PON signal processing unit 13 and the PON-IF port 14. The configurations of OSU1-2, 1-3,..., 1-16 are the same as the configuration of OSU1-1, and the processing of OSU1-1 will be mainly described.

  The control panel 1-c shown in FIG. 11B includes a power consumption value table storage unit 16-c, an OLT power consumption calculation unit 17-c, and an operation port 18-c. The duration information acquisition unit 15-1 and the OSU power consumption calculation unit 19-1 in the OSU 1-1, and the power consumption value table storage unit 16-c and the OLT power consumption calculation in the control panel 1-c. The unit 17-c functions as a power consumption monitoring device.

  The PON signal processing unit 13-1 of the OSU 1-1 outputs information on the activation states of the ONUs 2-1 2-2 2-3, and 2-4 to the duration information acquisition unit 15-1 of the OSU 1-1. . The duration information acquisition unit 15-1 of the OSU 1-1 acquires the duration information related to the ONUs 2-1 2-2 2-3, and 2-4 from the duration information illustrated in FIG. 9B, the duration information shown in FIG. 9B is processed into duration information related to the ONUs 2-1, 2-2, 2-3, 2-4. The power consumption value table storage unit 16-c of the control panel 1-c stores the power consumption value table shown in FIG. The OSU power consumption calculation unit 19-1 of the OSU 1-1 includes the duration information input from the duration information acquisition unit 15-1 of the OSU 1-1 and the power consumption value table storage unit 16-c of the control panel 1-c. The power consumption amount for each OSU 1-1 is calculated on the basis of the power consumption value table input from. The OSU 1-2, 1-3,..., 1-16 calculate the power consumption for each OSU 1-2, 1-3,. This is the same as the method of calculating the power consumption for each.

  The OLT power consumption calculating unit 17-c of the control panel 1-c receives the OSU 1-1 input from the OSU power consumption calculating unit 19 of the OSU 1-1, 1-2,. 1-2,..., 1-16 are summed to calculate the power consumption for each OLT 1.

  In this way, not only can the ONU 2 cost and calculation amount be increased, but the upstream bandwidth from the ONU 2 to the OLT 1 can be suppressed, and not only can one point-to-multipoint communication be performed, but also point-to-multipoint communication. Can be performed for multiple sets. Even when the status of the optical network changes, the effect of the invention of the third embodiment can be obtained by updating the power consumption value table as in the first embodiment.

(Embodiment 4)
9 and 12 are diagrams illustrating a power consumption monitoring method according to the fourth embodiment. As shown in FIG. 12, the optical network according to the fourth embodiment includes an OLT 1, ONUs 2-1 and 2-2,..., 2-6, an optical fiber transmission line 3, splitters 4-1, 4-2, and an operation. The OLT 1 according to the fourth embodiment includes a control panel 1-c and OSUs 1-1, 1-2,..., 1-16. The operation device 5 communicates with the control panel 1-c via the optical fiber transmission line 3 which is a control line. The configuration of the ONU 2 of the fourth embodiment is the same as the configuration of the ONU 2 shown in FIG. In the following description, the difference between the fourth embodiment and the third embodiment will be mainly described.

  FIG. 13 is a diagram illustrating an OLT according to the fourth embodiment. FIG. 14 is a diagram illustrating an operation device according to the fourth embodiment. First, the OLT 1 shown in FIG. 13 will be described, and then the operation device 5 shown in FIG. 14 will be described.

  First, the OLT 1 shown in FIG. 13 will be described. The OSU 1-1 illustrated in FIG. 13A includes an SNI port 11-1, a queue management unit 12-1, a PON signal processing unit 13-1, and a PON-IF port 14-1. The SNI port 11-1, the queue management unit 12-1, the PON signal processing unit 13-1, and the PON-IF port 14-1 illustrated in FIG. 13A are the same as the SNI port 11 and the queue management unit illustrated in FIG. 12, similar to the PON signal processing unit 13 and the PON-IF port 14. The configurations of OSU1-2, 1-3,..., 1-16 are the same as the configuration of OSU1-1, and the processing of OSU1-1 will be mainly described. The control panel 1-c shown in FIG. 13B includes a duration information acquisition unit 15-c and an operation port 18-c.

  The PON signal processing unit 13-1 of the OSU 1-1 sends the activation state information of the ONUs 2-1, 2-2, 2-3, 2-4 to the duration information acquisition unit 15-c of the control panel 1-c. Output. The PON signal processing unit 13 (not shown) of the OSUs 1-2, 1-3,... Output to.

  The duration information acquisition unit 15-c acquires the duration information shown in FIG. 9A, and processes the duration information shown in FIG. 9A into the duration information shown in FIG. 9B. To do. The duration information acquisition unit 15-c notifies the operation device 5 of the duration information shown in FIG. 9B via the operation port 18-c.

  Next, the operation device 5 shown in FIG. 14 will be described. The operation device 5 illustrated in FIG. 14 functions as a power consumption monitoring device, and includes an operation port 51, a duration information acquisition unit 52, a power consumption value table storage unit 53, a power consumption calculation unit 54 for each OLT, and an operator input. The output interface 55 is configured.

  The duration information acquisition unit 52 acquires the duration information shown in FIG. 9B from the OLT 1 via the operation port 51. The power consumption value table storage unit 53 stores the power consumption value table shown in FIG.

  The power consumption calculation unit 54 for each OLT calculates the power consumption for each OLT 1 based on the duration information input from the duration information acquisition unit 52 and the power consumption value table input from the power consumption value table storage unit 53. . The power consumption calculation unit 54 for each OLT outputs the power consumption for each OLT 1 to the operator display device via the operator input / output interface 55.

  In this way, not only can the ONU 2 cost and calculation amount be increased, but the upstream bandwidth from the ONU 2 to the OLT 1 can be suppressed, and not only can one point-to-multipoint communication be performed, but also point-to-multipoint communication. Can be performed for multiple sets. Even when the state of the optical network changes, the effect of the invention of the fourth embodiment can be obtained by updating the power consumption value table as in the first embodiment.

  Although the case where only one OLT 1 exists as shown in FIGS. 1 to 14 is considered, there may be a case where a plurality of OLTs 1 exist as shown in FIG. In the fourth embodiment, even when there are a plurality of OLTs 1, the power consumption value table for each OLT 1 may be stored in the operation device 5 in a lump without being stored in each OLT 1. In the fourth embodiment, it is possible to obtain an effect that the power consumption value table can be more easily stored and updated.

  The power consumption monitoring apparatus and power consumption monitoring method according to the present invention can be used not only in EPON and 10G-EPON, but also in B-PON and G-PON and WDM (Wavelength Division Multiplexing) compliant with ITU-T recommendation. ) -PON and CDM (Code Division Multiplexing) -PON etc.

1: OLT
2: ONU
3: Optical fiber transmission line 4: Splitter 5: Operation device 11: SNI port 12: Queue management unit 13: PON signal processing unit 14: PON-IF port 15: Duration information acquisition unit 16: Power consumption value table storage unit 17 : OLT power consumption calculation unit 18: Operation port 19: OSU power consumption calculation unit 21: PON-IF port 22: PON signal processing unit 23: Queue management unit 24: UNI port 51: Operation port 52: Duration information acquisition unit 53: power consumption value table storage unit 54: power consumption calculation unit for each OLT 55: operator input / output interface

Claims (9)

One optical subscriber line termination device and one or more optical network termination devices are applied to an optical network that performs point-to-point or point-to-multipoint communication via an optical fiber transmission line,
A power consumption value table storage unit storing a power consumption value table that associates a plurality of activation states of each optical network termination device and a power consumption value when each optical network termination device is in each activation state;
A duration information acquisition unit for acquiring information on a duration for which each optical network termination device continues each activation state, when the power consumption of each optical network termination device is monitored;
The power consumption value stored in the power consumption value table storage unit stores information on the power consumption value in each activation state in each optical network termination device and the duration information in each activation state in each optical network termination device acquired by the duration information acquisition unit. Based on the power consumption calculation unit for calculating the power consumption of each optical network termination device,
A power consumption monitoring device comprising: A plurality of the optical network termination devices exist,
The power consumption calculating unit calculates the total power consumption of the plurality of optical network termination devices by summing the power consumption of each optical network termination device for the plurality of optical network termination devices. The power consumption monitoring device according to claim 1.   The power consumption value table storage unit is updated when the number of optical network termination devices, the number of states of the plurality of activation states for each optical network termination device, or the power consumption value for each of the plurality of activation states is updated. The power consumption monitoring apparatus according to claim 1 or 2, wherein the power consumption value table is updated.   4. The power consumption monitoring apparatus according to claim 1, wherein the plurality of activation states include a normal activation state in which all functions of each optical network termination device are operating. 5.   5. The power consumption monitoring according to claim 1, wherein the plurality of activation states include a power saving activation state in which a part of functions of each optical network termination device is suspended. apparatus.   6. The plurality of activation states include a predetermined link speed activation state in which a link speed between each optical network termination device and the optical subscriber line termination device is a predetermined link speed. The power consumption monitoring device according to any one of the above. One optical subscriber line termination device and one or more optical network termination devices are applied to an optical network that performs point-to-point or point-to-multipoint communication via an optical fiber transmission line,
Storing a power consumption value table associating a plurality of activation states possessed by each optical network termination device and a power consumption value when each optical network termination device is in each activation state;
Obtain information on the duration that each optical network termination device continues each activation state as the power consumption of each optical network termination device is monitored,
Based on the stored power consumption value of each activation state in each optical network termination device and the acquired information on the duration of each activation state in each optical network termination device, the power consumption amount of each optical network termination device is calculated. The power consumption monitoring method characterized by the above-mentioned. A plurality of the optical network termination devices exist,
8. The consumption according to claim 7, wherein the total power consumption of the plurality of optical network termination devices is calculated by summing the power consumption of each optical network termination device for the plurality of optical network termination devices. Electricity monitoring method.   Updating the power consumption value table when the number of the optical network termination devices, the number of states of the plurality of activation states for each optical network termination device, or the power consumption value for each of the plurality of activation states is updated. The power consumption monitoring method according to claim 7 or 8, characterized in that:

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