JP2016021833A - Maintenance device of monitoring control system, and monitoring control system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a maintenance device of a monitoring control system which can easily maintain a protection control device.SOLUTION: A maintenance device of a monitoring control system of one embodiment includes a transmission unit, a reception unit, an extraction unit, and a storage unit. The transmission unit transmits a first packet to a plurality of protection control devices that are connected to a network and perform at least either monitoring or control of power apparatuses. The reception unit receives second packets transmitted from the plurality of protection control devices which has received the first packet. The extraction unit extracts information about the protection control devices which transmitted the second packets, from the second packets. The storage unit stores information about the protection control devices.SELECTED DRAWING: Figure 4

Description

  Embodiments described herein relate generally to a monitoring control system maintenance apparatus and a monitoring control system.

  A substation monitoring and control system includes a plurality of protection control devices for monitoring and controlling a power device such as a circuit breaker. A user of the monitoring control system manages the plurality of protection control devices.

JP 2008-108022 A

  The number of power devices in the power system generally increases according to the size of the power system. The number of protection control devices increases according to the number of power devices. When the number of protection control devices is large, management of the protection control devices may become complicated. For example, there is a possibility that the time and labor required for collecting information related to the protection control device may increase.

  A maintenance device for a monitoring control system according to an embodiment includes a transmission unit, a reception unit, an extraction unit, and a storage unit. The transmission unit transmits a first packet to a plurality of protection control devices that are connected to a network and perform at least one of monitoring and control of power equipment. The receiving unit receives a second packet transmitted from the plurality of protection control devices that have received the first packet. The extraction unit extracts information on the protection control device that has transmitted the second packet from the second packet. The storage unit stores information on the protection control device.

FIG. 1 is a diagram illustrating a configuration example of a monitoring control system for a substation according to the first embodiment. FIG. 2 is a diagram illustrating an example of a screen displayed on the display device of the maintenance PC according to the first embodiment. FIG. 3 is a block diagram illustrating an example of a functional configuration of the maintenance PC according to the first embodiment. FIG. 4 is a block diagram illustrating an example of a functional configuration of the apparatus cooperation unit according to the first embodiment. FIG. 5 is a sequence diagram illustrating an operation example of the monitoring control system according to the first embodiment. FIG. 6 is a flowchart illustrating a part of the procedure of the inquiry packet creation process according to the first embodiment. FIG. 7 is a diagram conceptually illustrating a packet structure example according to the first embodiment. FIG. 8 is a flowchart illustrating a part of the response packet analysis processing procedure according to the first embodiment. FIG. 9 is a flowchart illustrating a part of the information storage processing procedure according to the first embodiment. FIG. 10 is a block diagram illustrating an example of a functional configuration of the apparatus cooperation unit according to the second embodiment. FIG. 11 is a flowchart illustrating a part of the procedure of the information storage process according to the second embodiment. FIG. 12 is a diagram illustrating an example of a hardware configuration of the maintenance PC according to each embodiment.

  Hereinafter, a first embodiment will be described with reference to FIGS. 1 to 9. Note that a plurality of expressions may be written together for the constituent elements according to the embodiment and the description of the elements. It is not precluded that other expressions not described in the component and description are made. Furthermore, it is not prevented that other expressions are given for the components and descriptions in which a plurality of expressions are not described.

  FIG. 1 is a diagram illustrating a configuration example of a monitoring control system 10 for a substation. As shown in FIG. 1, the monitoring control system 10 includes a maintenance personal computer (hereinafter referred to as a maintenance PC) 11, a monitoring control device 12, and a plurality of protection control devices 13.

  The maintenance PC 11, the monitoring control device 12, and the plurality of protection control devices 13 are physically and logically connected to each other using a local area network (LAN) 14 of the substation as a communication medium. The LAN 14 is an example of a network. The maintenance PC 11, the monitoring control device 12, and the plurality of protection control devices 13 may be connected to each other by other communication media such as a wireless network.

  The maintenance PC 11 is an information processing apparatus for supporting operation and maintenance of the monitoring control system 10. The maintenance PC 11 is an example of a maintenance device. The maintenance device is not limited to a personal computer, and may be another device.

  The supervisory control device 12 controls the supervisory control system 10. For example, the monitoring control device 12 monitors and controls a plurality of protection control devices 13. The plurality of protection control devices 13 perform monitoring and control of power equipment corresponding to the substation, for example, a circuit breaker or a disconnecting switch. In addition, the kind of electric power apparatus and the function of the protection control apparatus 13 are not restricted to this.

  FIG. 2 is a diagram illustrating an example of the screen 20 displayed on the display device of the maintenance PC 11. The maintenance PC 11 displays the screen 20 as a window, for example, on a display device such as a liquid crystal display (LCD).

  The screen 20 of the maintenance PC 11 includes a plurality of first items 21 and a plurality of second items 22. The first item 21 indicates various devices of the monitoring control system 10 such as the monitoring control device 12 and the protection control device 13 of FIG. The second item 22 indicates various functions that can be executed from the maintenance PC 11 for each device.

  A user (operator) of the monitoring control system 10 selects a device from the first item 21 using an input device such as a keyboard or a mouse, and selects a function to be executed for the device from the second item 22. For example, the user selects the monitoring control device 12 or the protection control device 13 from the first item 21, and performs an operation support function for supporting the operation of the device or a setting function for performing maintenance of the device. The item 22 is selected. The maintenance PC 11 activates the operation support function or the setting function based on the selected first and second items 21 and 22.

  FIG. 3 is a block diagram illustrating an example of a functional configuration of the maintenance PC 11. As shown in FIG. 3, the maintenance PC 11 includes an operation support unit 31, a setting unit 32, and a device cooperation unit 33. Further, the maintenance PC 11 includes a device information database (hereinafter referred to as a device information DB) 35. For example, operation data 36 and setting data 37 that are information about a plurality of protection control devices 13 are registered in the device information DB 35. Further, the maintenance PC 11 includes a device database (hereinafter referred to as device DB) 39. The device DB 39 is an example of a database.

  The operation support unit 31, the setting unit 32, and the device cooperation unit 33 may be realized by software by causing a processing device such as a CPU (Central Processing Unit) to execute a program, that is, software and hardware. You may implement | achieve using together. The device information DB 35 and the device DB 39 are, for example, magnetic and optical devices such as an HDD (Hard Disk Drive), an SSD (Solid State Drive), a memory card, an optical disk, a ROM (Read Only Memory), and a RAM (Random Access Memory). Or stored in an electrically storable storage device.

  The operation support unit 31 executes an operation support function for the protection control device 13, for example. The operation support unit 31 acquires operation information from the protection control device 13 and stores the operation information as operation data 36 in the device information DB 35. The operation information includes, for example, the state (for example, open / closed) of the power device corresponding to the protection control device 13, measured values such as current and voltage, and recorded data such as events and reports.

  For example, the setting unit 32 executes a setting function for creating, changing, and discarding setting information about the protection control device 13. For example, the user of the monitoring control system 10 can create and manage the setting information about the protection control device 13 from the setting unit 32 by executing the setting function. The setting unit 32 can save the created setting information as the setting data 37 in the device information DB 35, and can change and discard the setting data 37 stored in the device information DB 35. The setting information includes, for example, operation setting values of the monitoring function, the protection function, and the control function of the protection control device 13 (for example, a timeout time for switching the circuit breaker).

  For example, the device cooperation unit 33 controls communication with the monitoring control device 12 and the protection control device 13. For example, the device cooperation unit 33 transmits and receives operation information and setting information of the protection control device 13 between the monitoring control device 12 and the protection control device 13. Furthermore, the device cooperation unit 33 collects information regarding the protection control device 13 as described later.

  A plurality of setting information (initial setting information) preset for the protection control device 13 is stored in the device DB 39. The initial setting information is an example of setting information. Initial setting information of protection control devices not included in the monitoring control system 10 may also be stored in the device DB 39. For example, the device DB 39 stores a plurality of initial setting information using the device models of a plurality of protection control devices including the protection control device 13 of the monitoring control system 10 as keys.

  FIG. 4 is a block diagram illustrating an example of a functional configuration of the device cooperation unit 33. As illustrated in FIG. 4, the device cooperation unit 33 includes an inquiry unit 51, a response analysis unit 52, and an information storage unit 53. 4 also shows the device information DB 35 and the device DB 39 for explanation.

  The inquiry unit 51 makes an inquiry for collecting information to a plurality of protection control devices 13 in the LAN 14. The inquiry unit 51 includes a network address acquisition unit 61, a packet creation unit 62, and a packet transmission unit 63. The packet transmission unit 63 is an example of a transmission unit.

  The network address acquisition unit 61 acquires the network address of the LAN 14 of the monitoring control system 10. The packet creation unit 62 creates an inquiry packet for causing the plurality of protection control devices 13 to transmit information related to the protection control device 13. The inquiry packet is an example of a first packet. The packet transmission unit 63 performs transmission processing of the inquiry packet created by the packet creation unit 62.

  The response analysis unit 52 sorts information received from the plurality of protection control devices 13 in the LAN 14. The response analysis unit 52 includes a packet reception unit 71, a sorting unit 72, and an information extraction unit 73. The packet receiving unit 71 is an example of a receiving unit. The information extraction unit 73 is an example of an extraction unit.

  The packet receiving unit 71 receives a packet transmitted from each protection control device 13 to the maintenance PC 11. The sorting unit 72 determines whether the packet received by the packet receiving unit 71 is a response packet transmitted from the protection control device 13 in response to the inquiry packet transmitted by the inquiry unit 51. The response packet is an example of a second packet. The information extraction unit 73 extracts information related to the protection control device 13 from the response packet transmitted from the protection control device 13.

  The information storage unit 53 stores the information sorted by the response analysis unit 52 in the device information DB 35 in the maintenance PC 11. The information storage unit 53 includes a setting information acquisition unit 81 and a device information creation unit 82. The setting information acquisition unit 81 is an example of an acquisition unit. The device information creation unit 82 is an example of a storage unit.

  The setting information acquisition unit 81 acquires initial setting information about the protection control device 13 from the device DB 39 based on the information about the protection control device 13 extracted by the information extraction unit 73. The device information creation unit 82 stores information related to the protection control device 13 and initial setting information about the protection control device 13 in the device information DB 35 in association with each other.

  Hereinafter, the information collection process executed by the device cooperation unit 33 will be described with reference to FIGS. 5 to 9. FIG. 5 is a sequence diagram illustrating an operation example of the monitoring control system 10. As shown in FIG. 5, in the monitoring control system 10, the inquiry unit 51 of the maintenance PC 11 performs an inquiry packet creation process in order to acquire information related to the protection control device 13 (step S111).

  FIG. 6 is a flowchart illustrating a part of the procedure of the inquiry packet creation process (step S111). Hereinafter, the inquiry packet creation process will be described in detail with reference to FIG.

  First, the network address acquisition unit 61 of the inquiry unit 51 acquires the network address of the LAN 14 of the monitoring control system 10 (step S211). The network address acquisition unit 61 acquires the network address of the LAN 14 from, for example, the network interface of the maintenance PC 11 connected to the LAN 14. The network address acquisition unit 61 may acquire the network address of the LAN 14 by another method. The network address acquisition unit 61 provides the acquired network address of the LAN 14 to the packet creation unit 62.

  Next, the packet creation unit 62 creates an inquiry packet (step S212). FIG. 7 is a diagram conceptually illustrating a structural example of a packet 90 transmitted / received between the maintenance PC 11 and the protection control device 13 in the information collecting process. The inquiry packet created by the packet creation unit 62 is realized by, for example, a packet 90 having the structure shown in FIG.

  As shown in FIG. 7, the packet 90 has a header part 91 and a data part 92. The header portion 91 includes transmission source information 94 and destination information 95. The transmission source information 94 is an IP address indicating the transmission source of the packet 90. The destination information 95 is an IP address indicating the destination of the packet 90, for example.

  The data portion 92 includes various information and an instruction code 97. The instruction code 97 is an example of a command for causing the protection control device to transmit the second packet. The instruction code 97 is information that is determined in advance between the maintenance PC 11 and the protection control device 13 and that does not conflict with other communication protocols.

  The packet creation unit 62 creates a broadcast address of the LAN 14 based on the network address of the LAN 14. The packet creation unit 62 sets the broadcast address of the LAN 14 as the destination information 95 in the header part 91 of the inquiry packet.

  Returning to FIG. 6, the packet transmission unit 63 performs processing for transmitting the inquiry packet created by the packet creation unit 62 (step S213). That is, the packet transmission unit 63 performs a process for broadcasting (simultaneously transmitting) the inquiry packet from the network interface of the maintenance PC 11 to the monitoring control device 12 and the plurality of protection control devices 13.

  Returning to FIG. 5, the maintenance PC 11 transmits the created inquiry packet to the plurality of protection control devices 13 by the processing of the packet transmission unit 63 (step S <b> 112). The inquiry packet transmitted by the maintenance PC 11 includes the instruction code 97 of FIG. 7 as described above.

  The packet transmission unit 63 transmits an inquiry packet in which the broadcast address of the LAN 14 is set as the destination information 95. For this reason, the packet transmission unit 63 can transmit an inquiry packet to the protection control device 13 whose IP address is not stored in the device information DB 35, for example.

  Each protection control device 13 that has received the inquiry packet performs a response packet creation process in accordance with the instruction code 97 of the inquiry packet (step S113). As described above, the instruction code 97 is information that is determined in advance so that the protection control device 13 that has received the inquiry packet including the instruction code 97 creates a response packet.

  The response packet created by each protection control device 13 is realized by a packet 90 having the structure shown in FIG. That is, the response packet created by the protection control device 13 also includes the instruction code 97. Note that the instruction code 97 of the inquiry packet and the instruction code 97 of the response packet have the same protocol, for example, but may not have the same content information.

  The response packet created by the protection control device 13 includes device specific information of the protection control device 13 in the data portion 92 of FIG. The device unique information is an example of information related to the protection control device, and includes, for example, information related to the device model of the protection control device 13, a device name, and an IP address. The device specific information may include other information. Further, the response packet may include other information in the data portion 92.

  The protection control device 13 acquires the IP address of the maintenance PC 11 from the transmission source information 94 in the header part 91 of the inquiry packet. The protection control device 13 sets the IP address of the maintenance PC 11 in the destination information 95 of the header 91 of the response packet. As shown in FIG. 5, the protection control device 13 transmits the created response packet to the maintenance PC 11 (step S114).

  The response analysis unit 52 of the maintenance PC 11 performs response packet analysis processing (step S115). FIG. 8 is a flowchart illustrating a part of the procedure of the response packet analysis process (step S115). Hereinafter, the response packet analysis process will be described in detail with reference to FIG.

  First, the packet receiver 71 of the response analyzer 52 determines whether or not a packet has been received (step S311). If the packet receiver 71 has not received a packet (step S311: No), the packet receiver 71 waits until a packet is received.

  The packet receiving unit 71 receives response packets and various packets via the network interface of the maintenance PC 11. When the packet is received (step S311: Yes), the packet receiving unit 71 provides the packet to the sorting unit 72. The sorting unit 72 determines whether or not the packet input from the packet receiving unit 71 is a response packet transmitted from the protection control device 13 (step S312).

  If the instruction code 97 is included in the packet, the sorting unit 72 determines that the packet is a response packet (step S312: Yes). The sorting unit 72 provides the response packet to the information extraction unit 73. On the other hand, when the packet is not a response packet (step S312: No), the sorting unit 72 waits until the packet receiving unit 71 receives the packet again.

  The information extraction unit 73 extracts device specific information from the data part 92 of the input response packet (step S313). That is, the information extraction unit 73 acquires information regarding the protection control device 13 that has transmitted the response packet. The information extraction unit 73 provides the extracted device specific information to the information storage unit 53.

  As shown in FIG. 5, the information storage unit 53 of the maintenance PC 11 to which the device specific information is input performs device information storage processing (step S116). FIG. 9 is a flowchart illustrating a part of the procedure of the information storage process (step S116). Hereinafter, the information storage process will be described in detail with reference to FIG.

  First, the setting information acquisition unit 81 of the information storage unit 53 acquires the initial setting information of the protection control device 13 corresponding to the device specific information of the response packet from the device DB 39 (step S411). For example, the setting information acquisition unit 81 searches and acquires the initial setting information associated with the device model from the device DB 39 based on the information related to the device model of the device specific information. The setting information acquisition unit 81 is not limited to this, and may acquire initial setting information from the device DB 39 based on other information such as a device name. The setting information acquisition unit 81 provides the device information creation unit 82 with the device specific information and the initial setting information acquired based on the device specific information.

  Next, the device information creation unit 82 stores the input device specific information and initial setting information in the device information DB 35 in association with each other (step S412). In other words, the device information creation unit 82 adds device specific information to the initial setting information and stores it in the device information DB 35. The device information creation unit 82 stores the initial setting information as setting data 37 in the device information DB 35. When the information related to the protection control device 13 is already stored in the device information DB 35, the device information creation unit 82 overwrites and stores the device-specific information and the initial setting information related to the protection control device 13 in the device information DB 35, for example.

  As described above, the inquiry unit 51 of the device cooperation unit 33 that performs information collection processing transmits an inquiry packet to the plurality of protection control devices 13 using the broadcast address of the LAN 14. Upon receiving the inquiry packet including the instruction code 97, each protection control device 13 creates a response packet including the instruction code 97 and transmits it to the maintenance PC 11. The information storage unit 53 acquires the device specific information of the response packet from the response analysis unit 52, and stores the device specific information and the initial setting information acquired from the device DB 39 in the device information DB 35. Thereby, the device unique information and the initial setting information of the plurality of protection control devices 13 of the monitoring control system 10 are stored in the device information DB 35.

  When the device cooperation unit 33 performs the above-described information collection processing, device-specific information and initial setting of the protection control device 13 that is not stored in advance (unknown) or the protection control device 13 that is not scheduled in the monitoring control system 10 Information is also stored in the device information DB 35. That is, the device cooperation unit 33 can detect all the protection control devices 13 of the monitoring control system 10. The user of the monitoring control system 10 can perform operation and maintenance from the maintenance PC 11 on the protection control device 13 in which the device specific information and the initial setting information are stored in the device information DB 35 by the information collection process.

  In the monitoring and control system 10 according to the first embodiment, the packet transmission unit 63 transmits an inquiry packet to the plurality of protection control devices 13, and the information extraction unit 73 starts from the response packet transmitted from the protection control device 13. Extract unique information. Then, the device information creation unit 82 stores the device specific information in the device information DB 35. That is, it is not necessary for the user to manually input information related to each protection control device 13 to the device information DB 35, and the device cooperation unit 33 that performs information collection processing automatically registers information related to the protection control device 13 in the device information DB 35. . Thereby, it becomes easy to acquire information on the plurality of protection control devices 13, and the user of the monitoring control system 10 can easily maintain the protection control device 13 using the information.

  The inquiry packet includes an instruction code 97 for causing the plurality of protection control devices 13 to transmit a response packet. Therefore, the packet receiving unit 71 can receive a response packet from each protection control device 13 only by broadcasting one inquiry packet to the plurality of protection control devices 13. This makes it easier to obtain information regarding the plurality of protection control devices 13.

  The setting information acquisition unit 81 acquires initial setting information corresponding to the protection control device 13 from the device DB 39 based on the acquired device unique information. Then, the device information creation unit 82 stores the device unique information of the protection control device 13 and the initial setting information of the protection control device 13 in the device information DB 35. That is, the information storage unit 53 automatically registers not only the device specific information of the protection control device 13 but also the setting information (initial setting information) preset for the protection control device 13 in the device information DB 35. To do. Thereby, the user of the monitoring control system 10 can set the protection control device 13 using the initial setting information acquired from the device DB 39, and the protection control device 13 can be more easily maintained.

  The second embodiment will be described below with reference to FIGS. 10 and 11. In the following description of the embodiment, components having the same functions as those already described are denoted by the same reference numerals as those described above, and further description may be omitted. In addition, a plurality of components to which the same reference numerals are attached do not necessarily have the same functions and properties, and may have different functions and properties according to each embodiment.

  FIG. 10 is a block diagram illustrating an example of a functional configuration of the apparatus cooperation unit 33 according to the second embodiment. As illustrated in FIG. 10, the information storage unit 53 of the second embodiment further includes an existing determination unit 83.

  Based on the device specific information extracted from the response packet by the information extraction unit 73, the existing determination unit 83 determines whether information related to the protection control device 13 corresponding to the device specific information is already stored in the device information DB 35. .

  FIG. 11 is a flowchart illustrating a part of the procedure of the information storage process (step S116 in FIG. 5) according to the second embodiment. As in the first embodiment, the apparatus cooperation unit 33 of the second embodiment executes the inquiry packet creation process (step S111) and the response packet analysis process (step S115) of FIGS. 5, 6, and 8. . When the information extraction unit 73 of the response analysis unit 52 provides the device specific information to the information storage unit 53, the information storage unit 53 executes the information storage process shown in FIG.

  First, the existing determination unit 83 acquires device-specific information of the response packet input to the information storage unit 53. For example, based on the IP address of the device-specific information, the existing determination unit 83 determines whether information related to the protection control device 13 corresponding to the IP address is already stored in the device information DB 35 (step S413).

  If the existing determination unit 83 determines that information related to the protection control device 13 that is the transmission source of the response packet is already stored in the device information DB 35 (step S413: Yes), the setting information acquisition unit 81 acquires initial setting information ( Step S411) is omitted. For this reason, the device information creation unit 82 saves the device specific information in the device information DB 35, but omits saving the initial setting information. That is, the device name of the protection control device 13 stored in the device information DB 35 is updated to the latest state, while the setting data 37 is not changed.

  On the other hand, when the existing determination unit 83 determines that the information related to the protection control device 13 that is the transmission source of the response packet is not yet stored in the device information DB 35 (step S413: No), the setting information acquisition unit 81 stores the initial setting information. Acquisition (step S411) is performed. For this reason, the device information creation unit 82 stores the device unique information and the initial setting information in the device information DB 35 as in the first embodiment (step S412).

  As described above, the information storage unit 53 including the existing determination unit 83 omits the change of the setting data 37 for the existing protection control device 13, while the setting data 37 (initial setting information for the new protection control device 13). ) Is saved.

  The setting data 37 of the protection control device 13 may be intentionally changed from the initial setting information by the user of the monitoring control system 10. The information storage unit 53 can suppress returning the changed setting data 37 to the initial setting information by omitting the change of the setting data 37 for the existing protection control device 13.

  On the other hand, some device-specific information such as the device name of the protection control device 13 may be changed regardless of the maintenance PC 11. The information storage unit 53 updates the device-specific information for the existing protection control device 13 as well, so that the device-specific information of the protection control device 13 in the device information DB 35, the device-specific information set in the protection control device 13, and The occurrence of wrinkles can be suppressed.

  In the monitoring control system 10 of the second embodiment, the device information creation unit 82 stores initial setting information in the device information DB 35 when information related to the protection control device 13 that transmitted the response packet is already stored in the device information DB 39. Omit saving. Thereby, it is suppressed that the setting data 37 intentionally corrected by the user of the monitoring control system 10 is inadvertently overwritten on the initial setting information of the device DB 35. Therefore, the user can acquire information related to the protection control device 13 by the information collection process without any problem even after the setting data 37 is changed.

  FIG. 12 is a diagram illustrating an example of a hardware configuration of the maintenance PC 11 according to each of the above embodiments. The maintenance PC 11 of each of the above embodiments includes a CPU 101 that is a control device, a ROM 102 and a RAM 103 that are storage devices, an external storage device 104 such as an HDD, and a display device 105 such as an LCD that are connected to each other via a bus 110. And an input device 106 such as a keyboard and a mouse, and a communication interface (I / F) 107, and has a hardware configuration using a normal computer.

  The program executed on the maintenance PC 11 of each of the above embodiments is a file in an installable format or an executable format, and is a CD-ROM, CD-R, memory card, DVD (Digital Versatile Disk), flexible disk (FD). Or the like stored in a computer-readable storage medium.

  Further, the program executed on the maintenance PC 11 of each of the above embodiments may be provided by being stored on a computer connected to a network such as the Internet and downloaded via the network. Further, the program executed on the maintenance PC 11 of each of the above embodiments may be provided or distributed via a network such as the Internet. Further, the program executed by the maintenance PC 11 of each of the above embodiments may be provided by being incorporated in advance in a ROM or the like.

  The program executed by the maintenance PC 11 of each of the above embodiments includes the above-described units (operation support unit 31, setting unit 32, device cooperation unit 33, device information DB 36, device DB 39, inquiry unit 51, response analysis unit 52, information Storage unit 53, network address acquisition unit 61, packet generation unit 62, packet transmission unit 63, packet reception unit 71, sorting unit 72, information extraction unit 73, setting information acquisition unit 81, device information generation unit 82, and existing determination unit 83) is a module configuration for realizing on a computer. As actual hardware, the CPU reads out a program from the HDD to the RAM and executes the program, whereby the above-described units are realized on the computer.

  According to at least one embodiment described above, the transmission unit transmits a first packet to a plurality of protection control devices, and the extraction unit relates to the protection control device from the second packet transmitted from the protection control device. To extract. And a preservation | save part preserve | saves the information regarding the said protection control apparatus. This facilitates acquisition of information regarding a plurality of protection control devices, and allows the user to easily maintain the protection control device using the information.

  Although several embodiments of the present invention have been described, these embodiments are presented by way of example and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

  For example, as long as each step in the sequence diagram of each of the above embodiments is not contrary to its nature, the execution order may be changed, a plurality of steps may be performed simultaneously, or may be performed in a different order for each execution.

  DESCRIPTION OF SYMBOLS 10 ... Monitoring control system, 11 ... Maintenance PC, 13 ... Protection control apparatus, 14 ... LAN, 35 ... Apparatus information DB, 39 ... Apparatus DB, 51 ... Inquiry part, 52 ... Response analysis part, 53 ... Information storage part, 63 ... Packet transmission unit, 71 ... Packet reception unit, 73 ... Information extraction unit, 81 ... Setting information acquisition unit, 82 ... Device information creation unit, 83 ... Existing judgment unit, 90 ... Packet, 97 ... Command code

Claims (5)

A transmission unit that transmits the first packet to a plurality of protection control devices that are connected to the network and perform at least one of monitoring and control of the power device;
A receiving unit that receives a second packet transmitted from the plurality of protection control devices that have received the first packet;
An extraction unit that extracts information about the protection control device that has transmitted the second packet from the second packet;
A storage unit for storing information on the protection control device;
A maintenance device for a monitoring control system comprising:   The monitoring control system maintenance apparatus according to claim 1, wherein the first packet includes a command for causing the plurality of protection control apparatuses to transmit the second packet. A database storing a plurality of setting information related to the setting of the protection control device;
Based on the acquired information on the protection control device, an acquisition unit that acquires the setting information corresponding to the protection control device from the database;
Further comprising
The storage unit stores information on the protection control device and the setting information corresponding to the protection control device;
A maintenance device for a supervisory control system according to claim 2.   The maintenance device for a monitoring control system according to claim 3, wherein the storage unit omits storing the setting information when the information regarding the protection control device that has transmitted the second packet is already stored. The plurality of protection control devices;
A maintenance device according to any one of claims 1 to 4,
A supervisory control system comprising:

Images