JP2019176582A - Monitoring system for power receiving and distributing facility - Google Patents

Abstract

To establish communication means for which the communication traffic is reduced, in order to implement a remote monitoring system for performing location-free monitoring of a power receiving and distributing facility.SOLUTION: The monitoring system for a power receiving and distributing facility includes a remote station 2 that collects information about a power receiving and distributing facility 1 which is an object to be monitored, a gateway device 3 that transmits the information in the remote station 2 to a higher-level system, and a data center 4 that stores information received from the gateway device 3. The gateway device 3 regularly collects sensor data acquired from the remote station 2, compares the latest data with the previous data, and transmits only data on the difference therebetween to the data center 4 over the internet 9.SELECTED DRAWING: Figure 1

Description

  This application relates to a monitoring system for power receiving and distribution equipment, and particularly to a system that reduces communication load.

A remote monitoring system that monitors a power receiving / distributing facility in a location-free manner generally stores information on the power receiving / distributing facility in the data center by connecting the power receiving / distributing facility and a data center by wire (for example, see Patent Document 1).
However, since the wired connection requires laying work, there is a problem that the introduction cost becomes higher than the wireless connection.

The electronic equipment mounted on the power distribution facility holds self-diagnosis information indicating a failure of the device itself and log information such as an accident waveform indicating a failure of the power distribution facility inside the device.
As a cause analysis work at the time of failure of the power distribution facilities, the actual situation is that the log information inside the equipment is acquired locally, and the signs of the occurrence of the accident and the cause analysis are performed.

JP 2014-93823 A

Wireless communication has a low introduction cost, but has a problem that communication speed and communication quality are inferior to wired communication.
That is, the field network of the electronic device has a narrower communication band than the network between the host controllers, and if the communication traffic increases due to electronic device log communication, the original measurement information may be lost.
Therefore, the problem is solved by obtaining a communication method that reduces communication traffic and does not lose necessary information.

  The monitoring system of the power distribution facility disclosed in this application acquires information on the power distribution facility that is a monitoring target, and the remote station that aggregates the acquired information and the remote station via the gateway device. A data center for acquiring the information, and storing the acquired information, wherein the gateway device acquires the information on power distribution facilities from the remote station, and transmits the acquired information to the data center through the network. At the same time, the data center receives and stores the information transmitted from the gateway device.

  According to the power distribution facility monitoring system disclosed in this application, communication traffic can be reduced, and location-free cause analysis and failure sign monitoring can be realized in a location-free manner.

FIG. 2 is a schematic diagram showing an overall configuration in the first embodiment. FIG. 3 is a schematic diagram illustrating a data flow in the first embodiment. FIG. 3 is a chart showing a configuration of sensor data in the first embodiment. FIG. 3 is a chart showing a configuration of previous data in the first embodiment. FIG. 3 is a chart showing a configuration of latest data in the first embodiment. FIG. 3 is a chart showing a configuration of difference data in the first embodiment. FIG. 3 is a diagram showing a configuration of accumulated data in the first embodiment. FIG. 3 is a flowchart showing an operation in the first embodiment. Schematic which shows the whole structure in Embodiment 2. FIG. FIG. 6 is a schematic diagram showing a data flow in Embodiment 2. FIG. 6 is a chart showing a configuration of internal log data in the second embodiment. FIG. 6 is a chart showing a configuration of device log data according to the second embodiment. FIG. 6 is a chart showing a configuration of lower-layer communication management data in the second embodiment. FIG. 7 is a chart showing a configuration of accumulated log data in the second embodiment. FIG. 9 is a flowchart showing an operation in the second embodiment.

Embodiment 1 FIG.
The first embodiment will be described with reference to FIGS. FIG. 1 is an overall configuration diagram of a monitoring system according to the first embodiment.
This monitoring system includes a remote station 2 that collects information on the power receiving / distributing equipment 1 to be monitored, a gateway device 3 that transmits information on the remote station 2 to a host system, and data that stores information received from the gateway device 3. And the center 4.
Information on the power distribution facility 1 is collected by the lower data management unit 6 through the interface 5 between the power distribution facilities. The gateway device 3 acquires the aggregated information of the necessary power receiving / distributing equipment 1 via the remote station interface 7 and transmits it to the data center 4 via the wireless network including the Internet 9 by the lower communication processing unit 8.

In the data center 4, the upper communication processing unit 19 receives transmission information from the gateway device 3, and the upper data management unit 10 manages data.
The upper communication processing unit 19 in the data center 4 and the lower communication processing unit 8 in the gateway device 3 are configured such that a communication line is set by a wireless network including the Internet 9 and FTP (File Transfer Protocol) communication is possible. A radio base station connected to the upper level communication processing unit 19 in the data center 4 is provided, and the radio base station and the lower level communication processing unit 8 in the gateway device 3 are connected to the radio network.

  The power distribution facility 1 as a monitoring target is provided in a scattered factory site and scattered in a plurality of locations. The remote station 2 and the remote station 2 provided in each of the plurality of power distribution facilities 1 Is connected to the data center 4 as a host system by a wireless network including the Internet 9. An information terminal such as a tablet terminal can be connected to the wireless network including the Internet 9.

FIG. 2 shows a data flow in the monitoring system of the first embodiment.
On the remote station 2, the sensor data 11 acquired from the sensors mounted on the power distribution facility 1, on the gateway device 3 the latest data 12, the previous data 13, the difference data 14, and received on the data center 4 There is accumulated data 15 in which data is accumulated.
The sensor data 11 is data set information obtained by aggregating sensor values detected by a plurality of sensors mounted on an electronic device provided in the power distribution facility 1 at the remote station 2. The gateway device 3 acquires the sensor data 11 as the latest data 12, refers to the previous data 13 as the difference data 14, and holds the data 12, 13, and 14, respectively. The data center 4 acquires and sequentially stores the difference data 14 and holds the accumulated data 15.

  Hereinafter, the configuration of each data will be described. FIG. 3 shows the sensor data 11. The sensor data 11 includes a signal type 16, a sensor ID 17, and a sensor value 18.

  FIG. 4 shows the previous data 13. The previous data 13 includes a signal type 16, a sensor ID 17, a previous sensor value 19, and a previous measurement timing 20.

  FIG. 5 shows the latest data 12. The latest data 12 includes a signal type 16, a sensor ID 17, a sensor value 18, and a previous measurement timing 20.

  FIG. 6 shows the difference data 14. The difference data 14 includes a signal type 16, a sensor ID 17, a sensor value 18, and a data acquisition timing 21. The previous data 13 and the latest data 12 are compared, and a portion where there is a change is set as difference data.

  FIG. 7 shows the accumulated data 15. The accumulated data 15 includes an acquisition time 22, a signal type 16, a sensor ID 17, and a sensor value 18.

Next, a processing flow of the system shown in Embodiment 1 in FIG. 8 will be described.
The gateway device 3 periodically collects the sensor data 11 in step S001. In step S002, the process branches depending on whether the sensor data 11 is collected for the first time. In the case of the first time, all sensor data 11 is collected in step S003, the acquired data is transmitted to the data center 4 in step S004, and the acquired data is held as the previous data 13 in step S005.
If it is not the first time, the difference from the previous data 13 is extracted in step S006, the acquired data is transmitted to the data center 4 in step S007, and the previous data 13 is updated in step S008.

  According to the first embodiment described above, communication traffic between the gateway device 3 and the data center 4 can be reduced by using differential transmission. Thereby, it is possible to realize a remote monitoring system even in a wireless connection having a communication quality lower than that of a wired connection.

As shown in FIGS. 1 to 8, the following configuration is applied to the monitoring system for power receiving and distribution equipment in the first embodiment.
As a remote station 2 that collects information on the power receiving / distributing equipment 1 to be monitored, a gateway device 3 that transmits the information of the remote station 2 to a host system, and a host system that accumulates information received from the gateway device 3 In the monitoring system for power receiving and distribution equipment including the data center 4, the information related to the sensor data 11 that detects the operation state of various devices in the power receiving and distributing equipment 1 is stored in the interface 5 between the power receiving and distributing equipment in the remote station 2. And the gateway device 3 acquires the aggregated information of necessary power distribution facilities from the remote station 2 via the remote station interface 7, and the lower-level communication processing unit Wireless network consisting of Internet 9 at 8 The data center 4 receives the information transmitted from the gateway device 3 at the higher-level communication processing unit 19, and receives data related to the information at the higher-level data management unit 10. It is characterized by managing.

The gateway device 3 periodically collects the information related to the sensor data 11 acquired from the remote station, compares the latest data 12 with the previous data 13 in the information, and sets a predetermined value as a threshold value. Only the difference data 14 exceeding is transmitted to the data center 4 through the wireless network including the Internet 9.
The gateway device 3 periodically collects the information related to the sensor data 11 acquired from the remote station 2 to determine whether the sensor data 11 is collected for the first time. The information related to the sensor data 11 is collected, the acquired data is transmitted to the data center 4, the acquired data is held as the previous data as the accumulated data 15, and if it is not the first time, the difference from the previous data 13 is extracted. When the acquired data, which is the extracted difference, exceeds a predetermined value as a threshold value, the acquired data is transmitted to the data center 4 and the previous data as the accumulated data 15 is updated.

With this configuration, it is possible to realize a wireless remote monitoring system by reducing communication traffic, and it is possible to realize location analysis and cause analysis at the time of an accident and failure sign monitoring.
In addition, since only difference data exceeding a predetermined value is transmitted to the data center via the wireless network including the Internet 9, it is possible to accurately reduce communication traffic.
Then, the data collection process can be performed accurately by performing the classification process according to whether or not the sensor data 11 is collected for the first time.

Embodiment 2. FIG.
The second embodiment will be described with reference to FIGS. FIG. 9 shows a configuration example of the monitoring system in the second embodiment.
The monitoring system according to the second embodiment receives the remote station 2 that collects information of the power distribution facility 1 that is the monitoring target, the gateway device 3 that transmits the information of the remote station 2 to the host system, and the gateway device 3 that has received the information. The data center 4 stores information.

Information on the power receiving / distributing facilities is collected by the lower data management unit 6 via the interface 5 between the power receiving / distributing facilities. The gateway device 3 acquires necessary information of the power distribution facility 1 via the remote station interface 7 and transmits it to the data center 4 via the wireless network composed of the Internet 9 by the lower communication processing unit 36.
In the data center 4, the host communication processing unit 19 receives the information on the power receiving / distributing equipment 1 transmitted from the gateway device 3, and the host data management unit 10 manages the data.

FIG. 10 shows a data flow in the monitoring system of the second embodiment.
On the remote station 2, internal log data 23 of the electronic device attached to the power distribution facility 1, on the gateway device 3, device log data 24, which is data obtained by filing the internal log data of the electronic device, lower communication On the lower-level communication management data 25 for managing the processing, on the data center 4, there is accumulated log data 26 in which device log data 24 is accumulated.
The information as the internal log data 23 of the electronic device is composed of information including internal log data of a plurality of electronic devices provided in the power distribution facility 1 and is acquired, aggregated, and aggregated by the remote station 2. The internal log data 23 is filed by the gateway device 3 to be a large capacity file of several hundred megabytes (MB), and is stored and held in the storage means of the gateway device 3 as device log data 24.

  FIG. 11 shows internal log data 23 of the electronic device. The internal log data 23 of the electronic device includes a log type 27, a log No 30, a recording time 31, and a log content 32.

  FIG. 12 shows the device log data 24. The device log data 24 includes an equipment ID 33, a log type 27, a log No 30, a recording time 31, and a log content 32.

  FIG. 13 shows the lower communication management data 25. The lower communication management data 25 includes a user ID 34, a facility ID 33, and a log collection flag 35.

  FIG. 14 shows the accumulated log data 26. The accumulated log data 26 includes a user ID 34, equipment ID 33, log type 27, log No 30, recording time 31, and log content 32.

Next, a processing flow of the monitoring system shown in Embodiment 2 will be described with reference to FIG.
In step S009, the gateway device 3 periodically monitors whether there is a request for acquiring the electronic device internal log data 23 from the data center 4 side. If there is a request, the gateway device 3 acquires the electronic device internal log from the remote station 2 in step S010, generates electronic device log data in step S011, and transmits the electronic device log data to the data center in step S012. To do.

The electronic equipment mounted on the power distribution facility holds self-diagnosis information indicating a failure of the device itself and log information such as an accident waveform indicating a failure of the power distribution facility inside the device.
As the cause analysis work at the time of power distribution facility failure, log information inside the equipment is acquired on site, and the signs of the occurrence of the accident and the cause analysis are performed.
However, the log data inside the electronic device has a large capacity, and communication traffic increases in order to collect all log data regularly.

  Therefore, by periodically performing log data collection processing at the data center side starting point, communication traffic is reduced and log data acquisition inside the electronic device is realized. In the case of the second embodiment, it is possible to acquire electronic device internal log data, and to make the cause analysis and preventive maintenance work after the accident more efficient.

As shown in FIGS. 9 to 15, the following configuration is applied to the monitoring system for power receiving and distributing equipment in the second embodiment in the configuration in the first embodiment described above.
As a remote station 2 that collects information on the power receiving / distributing equipment 1 to be monitored, a gateway device 3 that transmits the information of the remote station 2 to a host system, and a host system that accumulates information received from the gateway device 3 In the monitoring system for the power receiving and distributing equipment provided with the data center 4, the information including the internal log information 23 relating to the plurality of electronic devices provided in the power receiving and distributing equipment 1 is transmitted via the power receiving and distributing equipment interface 5 of the remote station 2. The gateway device 3 acquires information including the internal log information 23 via the remote station interface 7, and the information including the internal log information 23 is stored in the gateway device 3 by several hundreds. A device that is a large file with a megabyte (MB) size The data is filed as data 24, and the gateway device 3 uses the lower communication processing unit 8 to transmit the information including the device log data 24 filed for the necessary power distribution facilities via the wireless network including the Internet 9. The data center 4 receives the information including the filed device log data 24 transmitted from the gateway device 3 in the upper communication processing unit 19, and the upper data management unit 10 The data related to the information including the device log data 24 filed in (2) is managed as the accumulated log data 26.

  The remote station 2 has internal log data 23 of the electronic equipment attached to the power distribution facility 1, and the gateway device 3 has equipment log data 24, which is data obtained by filing the internal log data 23 of the electronic equipment, The lower-layer communication management data 25 for managing the lower-layer communication processing is configured such that the data center 4 has accumulated log data 26 in which the device log data 24 is accumulated.

  Further, the gateway device 3 periodically monitors whether there is a request for acquiring the electronic device internal log data 23 from the data center 4 side, and if there is a request, the gateway device 3 checks the electronic device internal log data. 23 is obtained from the remote station 2 to generate electronic device log data 24, and the electronic device log data 24 is transmitted to the data center 4.

  With this configuration, it is possible to reliably acquire the electronic device internal log data 23 and to make the cause analysis and preventive maintenance work after the accident more efficient.

  It should be noted that the disclosed matters as the technical idea in this application can be freely combined with each other within the technical scope, and each embodiment can be appropriately modified or omitted.

  1 Power distribution facility, 2 Remote station, 3 Gateway device, 4 Data center, 5 Interface between power distribution facilities, 6 Lower data management unit, 7 Remote station interface, 8 Lower communication processing unit, 9 Internet, 10 Upper data management unit, 11 Sensor data, 12 Latest data, 13 Previous data, 14 Difference data, 15 Accumulated data, 16 Signal type, 17 Sensor ID, 18 Sensor value, 19 Previous sensor value, 20 Previous measurement timing, 21 Data acquisition timing, 22 Acquisition time , 23 Electronic device internal log data, 24 Device log data, 25 Lower communication management data, 26 Accumulated log data, 27 Log type, 30 Log No, 31 Recording time, 32 Log content, 33 Equipment ID 34 User ID, 35 Log collection flag, 36 Lower communication processing unit.

Claims (6)

  Data for acquiring information on the power receiving / distributing equipment to be monitored, collecting the acquired information, and collecting the information collected at the remote station via a gateway device, and storing the acquired information And the gateway device acquires the information of the power distribution facility from the remote station, transmits the acquired information to the data center, and the data center is transmitted from the gateway device. A monitoring system for receiving and distributing equipment, characterized by receiving and storing information.   The gateway device periodically collects the information consisting of sensor data acquired from the remote station, compares the latest data of the information with the previous data, and sends only difference data to the data center via the network. The power receiving / distributing facility monitoring system according to claim 1, wherein:   The gateway device periodically collects the information consisting of sensor data acquired from the remote station, determines whether or not the sensor data is collected for the first time, collects all sensor data in the first case, Sending the acquired data to the data center and holding the acquired data as the previous data, and if not the first time, extracting the difference from the previous data and transmitting the acquired data to the data center to update the previous data The monitoring system for power receiving and distributing equipment according to claim 1.   The remote station acquires internal log data in the power receiving / distributing facility as the information of the power receiving / distributing facility, and aggregates the acquired information, and the gateway device includes the information in the power receiving / distributing facility as the information of the power receiving / distributing facility. 2. The power distribution facility according to claim 1, wherein internal log data is acquired from the remote station, filed as device log data, and the filed device log data is transmitted to the data center via the network. Monitoring system.   The remote station stores the internal log data in the power distribution facility, the gateway device stores the device log data that is a file of the internal log data, and the data center stores the device log data. 5. The monitoring system for power receiving and distributing equipment according to claim 4, wherein the accumulated log data exists.   The gateway device periodically monitors whether there is a request for acquisition of the internal log data from the data center. If there is a request, the gateway device transmits the device log data to the data center. 6. The power receiving and distribution facility monitoring system according to claim 4, wherein the power receiving / distributing facility monitoring system is configured as described above.

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