JP2016144037A - Monitoring control system, monitoring control terminal, electronic apparatus, and monitoring control method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve the conventional problem of possibility of occurrence of a failure in a system when a plurality of workers perform maintenance work by using a plurality of monitoring control terminals.SOLUTION: A monitoring control system includes a plurality of electronic apparatuses connected through a network, and two or more monitoring control terminals that are used for performing maintenance work and are connected to any electronic apparatus. Any of the electronic apparatuses is set as a master apparatus for managing the maintenance work of the monitoring control terminals. The master apparatus performs: processing of referring to a management schedule for managing a plan for maintenance work, when having received a report from a monitoring control terminal; and processing of transmitting a non-permission notification when an overlap with other maintenance work occurs, and transmitting a permission notification while transmitting exclusion information for performing exclusion processing on reported maintenance work to all monitoring control terminals when any overlap with the other maintenance work does not occur. A monitoring control terminal performs: processing of reporting maintenance work to the master apparatus; and exclusion processing on maintenance work to be performed by the monitoring control terminal, on the basis of exclusion information received from the master apparatus.SELECTED DRAWING: Figure 7

Description

  The present invention relates to a monitoring control system, a monitoring control terminal, an electronic device, and a monitoring control method.

  In recent years, transmission systems that connect a plurality of transmission apparatuses via a network have become widespread. A plurality of transmission devices connected to the network are connected to a monitoring control terminal (referred to as a maintenance terminal, a maintenance console, etc.) for setting change, monitoring, and the like. When a plurality of monitoring control terminals are connected to the same transmission system, a plurality of maintenance workers may perform maintenance work in duplicate. However, there is a concern that a failure may occur in the electronic device or the system when common information that is centrally managed by the system, a change in the setting of the electronic device, a version upgrade, or the like is performed redundantly. Therefore, a system that performs exclusive processing so that workers do not perform redundant maintenance work has been studied (see, for example, Patent Document 1).

JP 2000-115216 A

  However, there is a problem that the efficiency of the maintenance work decreases, for example, management of the maintenance work is complicated or the maintenance work that can be performed redundantly is exclusively processed for each monitoring control terminal (each worker).

  The monitoring control system, the monitoring control terminal, the electronic device, and the monitoring control method disclosed in the present disclosure provide a technique for preventing a system from being damaged even when a plurality of maintenance workers perform work on a plurality of monitoring control terminals. For the purpose.

  According to one aspect, a monitoring control system in which a plurality of electronic devices are connected via a network and two or more monitoring control terminals performing maintenance work are connected to any one of the plurality of electronic devices. One of the electronic devices is set as a parent device that manages the maintenance work of the monitoring control terminal, and the parent device refers to a management schedule that manages the maintenance work schedule when receiving a report from the monitoring control terminal; If it overlaps with other maintenance work, a notification of disapproval is sent to the declared monitoring control terminal, and if it does not overlap with other maintenance work, a permission notice is sent to the declared monitoring control terminal and exclusive to the declared maintenance work Processing to send exclusive information for processing to all the monitoring control terminals, and the monitoring control terminal declares maintenance work to the parent device and exclusive information received from the parent device And performing the exclusion process for maintenance of the own terminal performs based.

  According to one aspect, a monitoring control system in which a plurality of electronic devices are connected via a network and two or more monitoring control terminals performing maintenance work are connected to any one of the plurality of electronic devices. One of the electronic devices is set as a parent device that manages the maintenance work of the monitoring control terminal, and the parent device receives a maintenance work declaration from another electronic device including its own device to which the monitoring control terminal is connected. Processing that refers to the management schedule that manages the schedule of maintenance work, and if it overlaps with other maintenance work, sends a notice of disapproval to the electronic device including the declared device, and reports that it does not overlap with other maintenance work The electronic device including the parent device is transmitted to the electronic device including the parent device by transmitting a permission notice to the electronic device and transmitting exclusive information for performing the exclusive processing on the declared maintenance work to all the electronic devices including the own device. Is a process of declaring maintenance work to the parent device when an operation for declaring maintenance work is performed from the connected monitoring control terminal, and monitoring control connected to the own device based on exclusive information received from the parent device It is characterized by performing exclusive processing for maintenance work performed by the terminal.

  According to one aspect, a monitoring control system in which a plurality of electronic devices are connected via a network and two or more monitoring control terminals that perform maintenance work are connected to any one of the electronic devices includes a plurality of monitoring control terminals. The management supervisory control device further includes a process for referring to a management schedule for managing a maintenance work schedule when receiving a maintenance work declaration from the supervisory control terminal, and for other maintenance. If it overlaps with the work, a notification of disapproval is sent to the declared monitoring control terminal. If it does not overlap with other maintenance work, a permission notice is sent to the declared monitoring control terminal and exclusive processing for the declared maintenance work is performed. Processing for sending exclusive information to all the monitoring control terminals, the monitoring control terminal from the management monitoring control device for processing to declare the maintenance work to the management monitoring control device And performing the exclusion process for maintenance of the terminal itself made based on only take exclusive information.

  According to one aspect, an electronic device used in a monitoring control system in which a plurality of electronic devices are connected via a network and two or more monitoring control terminals that perform maintenance work are connected to any one of the electronic devices. When a report is received from the monitoring control terminal, a non-permission notification is sent to the management processing unit that refers to the management schedule for managing the schedule of maintenance work, and to the monitoring control terminal that has been declared if it overlaps with other maintenance work, When there is no overlap with other maintenance work, an arbitration processing unit that sends permission notification to the declared monitoring control terminal and sends exclusive information for performing exclusive processing on the declared maintenance work to all monitoring control terminals is provided. It is characterized by that.

  According to one aspect, an electronic device used in a monitoring control system in which a plurality of electronic devices are connected via a network and two or more monitoring control terminals that perform maintenance work are connected to any one of the electronic devices. When an operation for declaring a maintenance work is performed from the connected monitoring control terminal, a self-assessment processing unit for declaring the maintenance work to the parent device that performs the maintenance work management process, and an exclusive information received from the parent device automatically. And an exclusive processing unit that performs an exclusive process on maintenance work performed by a monitoring control terminal connected to the apparatus.

  According to one aspect, a monitoring control terminal used in a monitoring control system in which a plurality of electronic devices are connected by a network and two or more monitoring control terminals that perform maintenance work are connected to any one of the electronic devices is A notification processing unit for declaring the maintenance work to the parent device that manages the maintenance work of the monitoring control terminal, and receiving the exclusive information for performing the exclusive process for the maintenance work from the parent device, and the own terminal based on the exclusion information And an exclusive processing unit that performs an exclusive process on the maintenance work performed.

  According to one aspect, a monitoring control method for performing maintenance work of a monitoring control system in which a plurality of electronic devices are connected via a network and two or more monitoring control terminals that perform maintenance work are connected to any of the electronic devices Is one of a plurality of electronic devices that operates as a parent device that manages the maintenance work of the monitoring control terminal, and the parent device manages the schedule of the maintenance work when receiving a report from the monitoring control terminal If the process that refers to the management schedule overlaps with other maintenance work, a notification of disapproval is sent to the declared monitoring control terminal, and if it does not overlap with other maintenance work, a permission notice is sent to the declared monitoring control terminal. And processing for sending exclusive information for performing exclusive processing on the maintenance work declared to all monitoring control terminals, and the monitoring control terminal is a process for declaring maintenance work to the parent device. When, and performing the exclusion process for maintenance of the own terminal performs on the basis of the exclusive information received from the parent device.

  According to one aspect, a monitoring control method in a monitoring control system in which a plurality of electronic devices are connected via a network and two or more monitoring control terminals that perform maintenance work are connected to any one of the electronic devices includes: One of the electronic devices is set as the parent device that manages the maintenance work of the monitoring control terminal, and the parent device declares the maintenance work from other electronic devices including its own device to which the monitoring control terminal is connected. When receiving a process that refers to a management schedule that manages the schedule of maintenance work, and when it overlaps with other maintenance work, a non-permission notification is sent to the electronic device including the device itself that has been declared, and duplicates with other maintenance work If not, a permission notice is sent to the electronic device that has been declared, and exclusive information for performing exclusive processing on the declared maintenance work is sent to all electronic devices including the device itself. The electronic device including the parent device has its own device based on the processing for declaring the maintenance work to the parent device and the exclusive information received from the parent device when an operation for declaring the maintenance work is performed from the connected monitoring control terminal. And performing exclusive processing on maintenance work performed by a monitoring control terminal connected to the PC.

  According to one aspect, a monitoring control method in a monitoring control system in which a plurality of electronic devices are connected via a network and two or more monitoring control terminals that perform maintenance work are connected to any one of the electronic devices includes: A management supervisory control device for managing the supervisory control terminal is provided. The supervisory control controller for management refers to a process for referring to a management schedule for managing a maintenance work schedule when receiving a maintenance work declaration from the supervisory control terminal, and the like. If it does not overlap with the maintenance work, the notification is sent to the monitoring control terminal that has been declared, and if it does not overlap with other maintenance work, the permission notice is sent to the monitoring and control terminal that has been declared and exclusive processing for the declared maintenance work is performed. Processing for sending exclusive information to all monitoring control terminals, the monitoring control terminal performs processing for declaring maintenance work to the monitoring control device for management, and for management And performing the exclusion process for maintenance of the own terminal performs on the basis of the exclusive information received from the viewing controller.

  The monitoring control system, the monitoring control terminal, the electronic device, and the monitoring control method disclosed in the present disclosure can prevent a failure from occurring in the system even when a plurality of maintenance workers perform work on the plurality of monitoring control terminals.

It is a figure showing an example of a supervisory control system concerning this embodiment. It is a figure which shows an example of the monitoring control system at the time of assigning a parent device and a child device to an electronic device. It is a figure which shows an example of an electronic device. It is a figure which shows an example of the management schedule memorize | stored in a memory | storage part. It is a figure which shows an example of the monitoring control terminal. It is a figure which shows an example of the information memorize | stored in the memory | storage part of a monitoring control terminal. It is a figure which shows the example of a basic process in the case of starting a maintenance operation | work. It is a figure which shows the example of a process in the case of giving the work start notification to the parent apparatus from the monitoring control terminal which received permission, and work completion notification. It is a figure which shows an example which manages the start and completion | finish of the maintenance work of the monitoring control terminal which the parent apparatus declared the maintenance work. It is a figure which shows the process example in the case of extending maintenance work. It is a figure which shows the example of a process which permits the maintenance operation | work with which work date and time overlaps when functions differ. It is a figure which shows an example of the electronic device which added the function of the monitoring control terminal demonstrated in FIG.5 (b) to the block of the electronic device demonstrated in Fig.3 (a). It is a figure which shows an example of the management monitoring control apparatus which manages a maintenance operation | work. It is a figure which shows the example of a process when the monitoring control apparatus for management manages the maintenance work of the monitoring control terminal.

  Hereinafter, embodiments of the present disclosure will be described in detail.

  FIG. 1 shows an example of a monitoring control system 100 according to the present embodiment. In FIG. 1, the monitoring control system 100 includes an electronic device 101 (A), an electronic device 101 (B), an electronic device 101 (C), an electronic device 101 (D), and an electronic device 101 ( E) and the electronic device 101 (F). The electronic device 101 (A), the electronic device 101 (C), and the electronic device 101 (F) include a monitoring control terminal 102 (A), a monitoring control terminal 102 (C), and a monitoring control terminal 102 (F), respectively. It is connected. In addition, the electronic device 101 (A), the electronic device 101 (B), the electronic device 101 (C), the electronic device 101 (D), the electronic device 101 (E), and the electronic device 101 (F) are connected through the network 103. ing. Here, the monitoring control terminal 102 (A), the monitoring control terminal 102 (C), and the monitoring control terminal 102 (F) may be connected to the management monitoring control apparatus 104 via a monitoring network or the like. In this embodiment, a case where there is no management monitoring control device 104 and a case where there is no management will be described.

  Note that in the following description, when a description common to the electronic device 101 (F) from the electronic device 101 (A) is described, the symbol (letter) at the end of the code is omitted, and is expressed as the electronic device 101. Further, when referring to a specific electronic device 101, an (alphabet) symbol is added and described as, for example, an electronic device 101 (A). Similarly, the monitoring control terminal 102 (A), the monitoring control terminal 102 (C), and the monitoring control terminal 102 (F) are also monitored by omitting the (alphabet) symbol at the end of the code when explaining common items. It is expressed as a control terminal 102.

  Here, the electronic device 101 may be a communication device or a control device in a power plant or a manufacturing plant. In any case, as long as each electronic device 101 is connected via the network 103 and can communicate between the electronic devices 101, the monitoring control method described in this embodiment can be applied. In this embodiment, it is assumed that the setting information of the apparatus is unified and used in common among a plurality of electronic apparatuses 101 connected via the network 103. However, setting changes for each electronic apparatus 101 are duplicated. This is applicable even if For example, when the electronic device 101 is a communication device, the connection information is updated in common for the plurality of electronic devices 101. However, if connection information is edited simultaneously from a plurality of monitoring control terminals 102, a failure may occur. In such a case, exclusive processing is performed so that other monitoring control terminals 102 cannot perform maintenance work at the same time. However, when exclusive processing is performed for each monitoring control terminal 102 (for each worker), maintenance that allows duplicate work is performed. Even if it is a work, the problem that work cannot be performed simultaneously arises.

  Therefore, the monitoring control system 100 according to the present embodiment can set a function for performing exclusive processing. For example, a maintenance operation for changing the system settings is a function s, a maintenance operation for monitoring an apparatus state such as an alarm is a function m, a maintenance operation for performing a communication test is a function t, and a maintenance operation for upgrading the software is a function v. Then, the system administrator can provide information on the function level for performing the exclusion process such as the function s and the function v and the function s and the function m can be overlapped. It is set in advance in the monitoring control device 104. In addition, functions that require exclusive processing can be selected automatically for exclusive functions, and functions that may not need to be processed depending on the content of the maintenance work, such as communication test maintenance work. You may do it.

  As described above, the monitoring control system 100 according to the present embodiment determines functions that can be duplicated and functions that cannot be duplicated in advance, and performs a maintenance work exclusive process for each function, thereby enabling duplicate work. Can perform maintenance work in parallel, improving work efficiency.

  In FIG. 1, a worker A performs maintenance work by connecting a monitoring control terminal 102 (A) to an electronic device 101 (A). Similarly, the worker C connects the monitoring control terminal 102 (C) to the electronic device 101 (C) to perform maintenance work, and the worker F connects the monitoring control terminal 102 (F) to the electronic device 101 (F). Connect to and perform maintenance work. The maintenance work includes setting changes related to the devices from the electronic device 101 (A) to the electronic device 101 (F), software upgrade, operation test, device status and setting value monitoring, operation test, alarm confirmation, etc. There are various functions. Here, there is a maintenance work that can be duplicated if the functions are different. For example, the maintenance work for changing the setting of the electronic apparatus 101 (D) and the maintenance work for the operation monitor of the electronic apparatus 101 (D) may be performed in duplicate. it can. However, when the maintenance work for the electronic device 101 (D) is exclusively processed, the maintenance work for changing the setting of the electronic device 101 (D) and the maintenance work for the operation monitor of the electronic device 101 (D) are performed in duplicate. Work efficiency is reduced. Therefore, the monitoring control system 100 according to the present embodiment can perform maintenance operations that can be duplicated in parallel.

  Further, the maintenance work can be performed not only on the electronic device 101 to which the monitoring control terminal 102 is connected but also on the remote electronic device 101 via the network 103. For example, in FIG. 1, the worker A can perform maintenance work on the electronic device 101 (D) from the electronic device 101 (A) via the network 103 by operating the monitoring control terminal 102 (A). For this reason, for example, the maintenance operation of the electronic apparatus 101 (D) may be performed from both the monitoring control terminal 102 (A) operated by the worker A and the monitoring control terminal 102 (C) operated by the worker C. . Alternatively, when the worker A of the monitoring control terminal 102 (A) performs setting change or software upgrade common to all the electronic devices 101, the worker C of the monitoring control terminal 102 (C) or the monitoring control terminal There is a case where maintenance work overlaps with the worker F of 102 (F).

  Therefore, in the monitoring control system 100 according to the present embodiment, a system administrator performs maintenance processing management processing on any one of the plurality of electronic devices 101 connected via the network 103 when the system is set up. To do. At this time, the electronic device 101 other than the parent device becomes a child device that does not manage maintenance work. The electronic device 101 connected to the monitoring control terminal 102 that starts the work first may be automatically set as the parent device. Also, any electronic device 101 may be assigned as a sub parent device in case the parent device cannot be used due to a failure or the like.

  FIG. 2 shows an example of the monitoring control system 100 when a parent device and a child device are assigned to the electronic device 101. Note that the monitoring control system 100 shown in FIG. 2 shows an example in which the management monitoring control device 104 shown in FIG. 1 is not provided. 2, the electronic device 101 (A) shown in FIG. 1 becomes the parent device 101 (A), and the electronic device 101 (B) to the electronic device 101 (F) shown in FIG. To the child device 101 (F).

Here, in the example of FIG. 2, the electronic device 101 (A) to which the monitoring control terminal 102 (A) shown in FIG. 1 is connected is set as the parent device 101 (A), but the monitoring shown in FIG. The electronic device 101 (B) to which the control terminal 102 is not connected may be set as the parent device 101 (B).
[Declaration method]
In FIG. 2, for example, when the worker F performs maintenance work (function a) such as a setting change common to a specific child device 101 or all the child devices 101 from the monitoring control terminal 102 (F), the worker F The monitoring control terminal 102 (F) declares maintenance work to the parent apparatus 101 (A) ((1) in FIG. 2). The information (declaration information) that the worker F declares to the parent apparatus 101 (A) is the information (name, number, ID (IDentification) that identifies the work control date and time, the work content (function a), and the declaring monitoring control terminal 102. ), MAC (Media Access Control) address, etc.). The parent apparatus 101 (A) that has received the declaration of the maintenance work has information on the maintenance work management schedule of the monitoring control terminal 102 connected to the network 103. The parent apparatus 101 (A) refers to the management schedule information and performs arbitration with other maintenance work, and if it overlaps, notifies the monitoring control terminal 102 (F) that the maintenance work is not permitted. When the reported maintenance work does not overlap with other maintenance work, the parent apparatus 101 (A) generates exclusive information 305a to be described later according to the report contents. Here, the exclusive information 305a includes information (time stamp) indicating the work date and time and information on a function (work content) for performing an exclusive process. Then, the parent apparatus 101 (A) notifies the exclusive information 305 a to the monitoring control terminal 102 (in the case of FIG. 2, the monitoring control terminal 102 (C)) other than the declared worker (the worker F in the above example). ((2) in FIG. 2). Note that the parent device 101 may have the monitoring control terminal 102 connected to its own device. For example, as shown in FIG. 2, when the monitoring control terminal 102 (A) is connected to the parent apparatus 101 (A), the exclusive information 305a is also output to the connected monitoring control terminal 102 (A). The monitoring control terminal 102 (C) that has received the exclusive information 305 a from the parent device 101 (A) transmits a response indicating that the exclusive information 305 a has been received from the parent device 101 (A) to the parent device 101 (A) ( (3) in FIG. After receiving the response from all the monitoring control terminals 102 that transmitted the exclusive information 305a, the parent apparatus 101 (A) notifies the reporting monitoring control terminal 102 (F) of permission ((4) in FIG. 2). The monitoring control terminal 102 (F) that has received the permission notification from the parent apparatus 101 displays the contents of the work permission on the operation screen to notify the worker F, and stores the date and time of the work and the work contents as the report information. . And the worker F can perform the maintenance work of the work content declared on the work date and time of the declaration.

  Here, when the maintenance work is to be started at a time other than the work date and time declared by the worker F, the monitoring control terminal 102 (F) operates the message indicating that it is not the work date and time with reference to the report information. Display on the screen and refuse maintenance work. Similarly, when a maintenance work other than the work contents declared at the work date and time declared by the worker F is to be started, the monitoring control terminal 102 (F) refers to the report information and is not the work contents declared. Is displayed on the operation screen and maintenance work is rejected.

  In addition, the parent device 101 (A) transmits a prior notice of the end of work to the monitoring control terminal 102 (F) that declared the maintenance work slightly before the end date of the permitted maintenance work (for example, 10 minutes before). It may be. Then, the monitoring control terminal 102 (F) that has received the prior notice of work completion from the parent device 101 (A) displays a work completion notice on the operation screen. Thereby, the worker F can recognize that the reported work date and time will end soon, and can finish the maintenance work by the end date and time.

  All the monitoring control terminals 102 cancel the exclusive process for the work content of the maintenance work when the maintenance work end date and time described in the exclusive information 305a has passed.

In this way, the worker who performs the maintenance work declares the work date and time and the work content to the parent apparatus 101, and starts the maintenance work after receiving permission from the parent apparatus 101. In particular, the parent device 101 generates the exclusion information 305a based on the report information and notifies the other monitoring control terminal 102, and the other monitoring control terminal 102 performs the exclusion process with reference to the exclusion information 305a. It is possible to prevent the maintenance work of the supervisory control terminal 102 from being duplicated.
[Extension method]
When it is desired to extend the maintenance work, the worker F makes an extension report from the monitoring control terminal 102 (F) to the parent apparatus 101 (A). Note that the information to be extended (extended declaration information) includes information for specifying the work date and time, the work content, and the monitoring control terminal 102 that has made the declaration, similarly to the declaration information. Then, the parent apparatus 101 (A) confirms the management schedule, and if the work schedule is not available, transmits a notification that the extension declaration is not permitted to the monitoring control terminal 102. When the work schedule is vacant, the parent apparatus 101 (A) generates the exclusive information 305 a according to the content of the extended declaration as in the case of the declaration, and the monitoring control terminal 102 (C) other than the monitoring control terminal 102 (F). ) Is notified of the exclusive information 305a. Further, the parent apparatus 101 (A) also outputs the exclusive information 305 a to the monitoring control terminal 102 (A) connected to the own apparatus. Then, the monitoring control terminal 102 (C) that has received the exclusive information 305 a from the parent device 101 (A) transmits a response indicating that the exclusive information 305 a has been received from the parent device 101 (A) to the parent device 101 (A). To do. After receiving the response from all the monitoring control terminals 102 that transmitted the exclusive information 305a, the parent apparatus 101 (A) notifies the extension control to the monitoring control terminal 102 (F) that has made the extension declaration. Upon receiving the extension permission notification from the parent device 101, the monitoring control terminal 102 (F) displays the extension permission content on the operation screen to notify the worker F, and extended the work date and time of the stored declaration information. Update to work date. Then, the worker F can perform the maintenance work until the work date and time when the extension declaration is completed. All the monitoring control terminals 102 cancel the exclusive process for the work content of the maintenance work when the maintenance work end date and time described in the exclusive information 305a has passed.

  In this way, when the maintenance work to be extended is extended, the worker who performs the maintenance work issues a maintenance work extension declaration to the parent apparatus 101, and starts the maintenance work after receiving the extension permission from the parent apparatus 101. In particular, the parent apparatus 101 updates the exclusive information 305a based on the extended report information and notifies the other monitoring control terminal 102, and the other monitoring control terminal 102 refers to the updated exclusive information 305a and performs the exclusive process. Therefore, it is possible to prevent workers of other monitoring control terminals 102 from performing redundant maintenance work.

  FIG. 3 shows an example of the electronic device 101. FIG. 3A shows an example of a block common to the parent device 101 or the child device 101. 3A, the electronic apparatus 101 includes a terminal IF (InterFace) 201, a communication unit 202, a control unit 203, a storage unit 204, and a clock unit 205.

  The terminal IF 201 has an interface circuit for connecting the monitoring control terminal 102, and the monitoring control terminal 102 is connected by, for example, a serial communication cable.

  The communication unit 202 has an interface circuit for connecting to the network 103, and communicates with other electronic devices 101 via, for example, a LAN (Local Area Network).

  The control unit 203 uses a CPU (Central Processing Unit) or the like, operates according to a program stored therein, and controls the entire electronic apparatus 101.

  As the storage unit 204, a semiconductor memory or the like is used, and the storage unit 204 stores unique information (name, number, ID, MAC address, etc.) of the electronic apparatus 101, parameters necessary for operation, and the like.

  The clock unit 205 has a clock function such as an RTC (Real Time Controller), and functions as a clock or a timer. The clock unit 205 is connected to a server compatible with NTP (Network Time Protocol) that provides a radio clock function and standard time, and always performs error correction.

  As described above, the electronic device 101 can perform maintenance by connecting to the monitoring control terminal 102 and the function of communicating with the other electronic devices 101 via the network 103. Here, the electronic device 101 may be a communication device or a control device used in a plant or the like. In FIG. 3, blocks related to the original function of the electronic device 101 (for example, in the case of an optical communication device, an optical termination unit, a communication control unit, etc.) are omitted, and blocks necessary for performing supervisory control are described. It is.

  FIG. 3B shows an example when the electronic device 101 operates as the parent device 101. Here, it is assumed that the electronic device 101 is set in advance so as to function as a parent device. Alternatively, software may determine which is the parent device 101. For example, when the monitoring control terminal 102 connected to the electronic device 101 performs a maintenance work reporting operation, whether or not the monitoring control terminal 102 or the connected electronic device 101 is a parent to all the electronic devices 101. Send a search message asking for When the electronic device 101 that has received the search message operates as the parent device 101, the electronic device 101 transmits a reply message indicating that it is a parent to the monitoring control terminal 102. Further, when the electronic device 101 that has received the search message is not the parent device 101, the electronic device 101 transmits a reply message indicating that it does not respond or is not the parent to the monitoring control terminal 102. As a result, the monitoring control terminal 102 or the electronic device 101 that performed the maintenance operation reporting operation recognizes that there is no parent device 101, and sets the electronic device 101 connected to the monitoring control terminal 102 as the parent device 101. can do. In this way, each monitoring control terminal 102 can recognize the parent device 101 and make a report. Further, in preparation for the case where the parent device 101 breaks down, the electronic device 101 (sub parent device 101) to be the next parent may be determined. Further, the parent electronic device 101 may be notified to the other electronic device 101 or the monitoring control terminal 102 connected to each electronic device 101 that it is the parent. In this case, in order to correspond to the monitoring control terminal 102 connected after the notification, it is preferable that the parent device 101 periodically notifies information indicating that it is a parent.

  In FIG. 3B, blocks having the same reference numerals as those in FIG. 3A have the same or similar functions. The electronic device 101 functioning as the parent device shown in FIG. 3B (referred to as the parent device 101) executes an arbitration process 251 and a management process 252. When the electronic apparatus 101 is operated as the parent apparatus 101, a management schedule 204a for managing the schedule of maintenance work for the entire system is stored in the storage unit 204. The management schedule 204a is information for identifying the monitoring control terminal 102 or the child device 101 in which the information indicating the work date and time of the permitted maintenance work and the work content is given when the parent device 101 receives and permits the maintenance work. And stored in the storage unit 204. In addition, the storage unit 204 may store information (function information 204b) regarding functions that can be duplicated.

  When the parent device 101 that executes the arbitration process 251 receives a maintenance work report from the child device 101 or the monitoring control terminal 102 connected to the own device, does the work date and time of other maintenance work overlap with each other? Determine whether or not. When the parent apparatus 101 that executes the arbitration process 251 overlaps with other maintenance work, the parent apparatus 101 notifies the reported monitoring control terminal 102 of the disapproval. Further, when there is no overlap with other maintenance work, the parent device 101 that executes the arbitration process 251 generates the exclusion information 305a and transmits the exclusion information 305a to all the monitoring control terminals 102 connected to the other electronic devices 101. To do. Note that the parent device 101 that executes the arbitration process 251 also transmits the exclusive information 305a to the monitoring control terminal 102 connected to the own device via the terminal IF 201. Then, after receiving a response from the monitoring control terminal 102 that has transmitted the exclusive information 305a, the parent device 101 that executes the arbitration process 251 notifies the reporting monitoring control terminal 102 of permission. Here, when the maintenance device reported from the monitoring control terminal 102 is a function that can be duplicated, the parent device 101 that executes the arbitration processing 251 may not include the maintenance operation in the exclusive information 305a. Alternatively, the parent device 101 that executes the arbitration process 251 stores the function information 204b regarding the duplicatable function on the monitoring control terminal 102 side when the duplication maintenance work is included in the exclusive information 305a. The functions that can be duplicated on the 102 side may be determined. In this case, the parent apparatus 101 distributes the exclusive information 305a including the function information 204b to the monitoring control terminal 102.

  The parent apparatus 101 that executes the management process 252 manages the work dates and contents of all maintenance work declared in the monitoring control system 100. For example, each time the parent apparatus 101 that executes the management process 252 receives a maintenance work declaration from the monitoring control terminal 102 and permits the management apparatus 252, the management apparatus 252 associates the information that identifies the reported monitoring control terminal 102 with the work date and time and manages the work. The schedule 204a is updated. The parent apparatus 101 that executes the management process 252 may delete information related to the completed maintenance work in the management schedule 204a from the management schedule 204a. Then, when a new report is received, the parent apparatus 101 that executes the arbitration process 251 refers to the management schedule 204a and determines whether or not it overlaps with other maintenance work.

  In this way, the parent device 101 can manage maintenance work performed by the child device 101 or the monitoring control terminal 102 connected to the own device, and perform arbitration processing so that duplicate work is not performed.

  FIG. 4 shows an example of the management schedule 204 a stored in the storage unit 204. In FIG. 4, the management schedule 204a stores information regarding work date / time, work contents, and the reporter. Note that the information stored in the management schedule 204a does not include unauthorized maintenance work but indicates permitted maintenance work. In FIG. 4, the management schedule 204a includes a maintenance date declared from the monitoring control terminal 102 (C) and permitted as a work date and time: 16:00 to 17:00 on October 1, 2014, work content: function a Information indicating a change in the setting information is stored. Similarly, in the management schedule 204a, as the maintenance work declared and permitted by the monitoring control terminal 102 (F), the work date and time: 16:00 to 17:00 on October 1, 2014, the work content: function b Information indicating the setting of the line test function is stored. Also, in the management schedule 204a, as the maintenance work declared and permitted by the monitoring control terminal 102 (A), work date and time: 18:00 to 19:00 on October 1, 2014, work content: version of function c Information indicating up is stored. Similarly, in the management schedule 204a, as the maintenance work declared and permitted by the supervisory control terminal 102 (F), work date and time: 12:00 to 13:00 on October 2, 2014, work content: function d Information indicating adjustment of the electronic device 101 (D) is stored. In FIG. 4, the work date and time of the monitoring control terminal 102 (C) and the monitoring control terminal 102 (F) are duplicated, but the functions of the work contents are different. For this reason, when the parent apparatus 101 permits the reporting of both terminals, information on a plurality of maintenance work having different work content functions is simultaneously stored in the management schedule 204a. Here, in the parent apparatus 101, for example, a function a and a function b can be overlapped, but a condition for permitting the overlap such that the function c is difficult to overlap with other functions is set in advance. Alternatively, a system administrator or an operator may appropriately set functions that can be duplicated in the parent apparatus 101.

  In this way, every time the parent apparatus 101 receives and permits a maintenance work declaration from the monitoring control terminal 102, the information (name in the example of FIG. 4), the work date and time, and the work content specifying the declared monitoring control terminal 102 are permitted. Are stored in the management schedule 204a and managed.

  FIG. 5 shows an example of the monitoring control terminal 102. In FIG. 5, the monitoring control terminal 102 includes an operation IF 301, a monitor 302, a control unit 303, a device IF 304, a storage unit 305, and a clock unit 306. Furthermore, the monitoring control terminal 102 may have a LANIF 307 connected to a server or the like. The monitoring control terminal 102 may be a general-purpose personal computer.

  The operation IF 301 has a man-machine interface such as a keyboard and a mouse, and an operator operates the operation IF 301 to perform maintenance work. For example, the operator operates the operation IF 301 to declare maintenance work.

  The monitor 302 uses a liquid crystal display or the like and displays the contents of maintenance work. For example, setting information, parameters, and the like are displayed on the monitor 302, and the operator operates the operation IF 301 to change setting information, parameters, and the like. Alternatively, the alarm content of the electronic device 101 outputting the alarm is displayed on the monitor 302. In the present embodiment, the operator can confirm the maintenance work information to be reported and the exclusive information 305 a on the monitor 302.

  As the control unit 303, a CPU or the like is used, and a maintenance program 303a is installed. The control unit 303 operates according to the maintenance program 303a, displays a maintenance work screen on the monitor 302, and performs control related to the maintenance work in accordance with the operation of the operator's operation IF 301. Details of the maintenance work will be described later.

  The device IF 304 has an interface circuit for connecting the electronic device 101, and is connected to the terminal IF 201 of the electronic device 101 by, for example, a serial communication cable.

  The storage unit 305 uses a hard disk, a semiconductor memory, or the like, and stores application programs, parameters necessary for the operation of the monitoring control terminal 102, and the like. In the present embodiment, the storage unit 305 stores exclusive information 305a that is referenced by the maintenance program 303a. The exclusive information 305a is information distributed from the parent apparatus 101, and is information indicating the work date / time and the work content of the maintenance work scheduled to be performed by another worker. Further, when the monitoring control terminal 102 is a reporter, the monitoring control terminal 102 may store the work date and time and the work content permitted by the declaration in the storage unit 305 as the declaration information 305b. Furthermore, when the parent apparatus 101 transmits the function information 204b included in the exclusion information 305a, the monitoring control terminal 102 may store the function information 204b in the storage unit 305 in association with the exclusion information 305a.

  The clock unit 306 has a clock function such as an RTC, and, like the clock unit 205 of the electronic device 101, connects to a server that supports the function of a radio clock and an NTP (Network Time Protocol) that provides a standard time, Error correction is always performed.

  The LANIF 307 has an interface circuit for connecting to a server or the like via a LAN, and is used when a management monitoring control device 104 described later is used.

  As described above, the monitoring control terminal 102 makes a maintenance work declaration to the parent apparatus 101 by the maintenance program 303a, or a maintenance work to be performed by the worker based on the exclusive information 305a distributed from the parent apparatus 101. Exclusive processing can be performed.

  Next, processing of the control unit 303 will be described. In the example of FIG. 5, the control unit 303 executes a reporting process 350 and an exclusion process 351.

  In the reporting process 350, for example, when the operator presses the reporting button displayed on the monitor 302 by the operation IF 301, the control unit 303 displays a screen for inputting or selecting the work date and work content on the monitor 302. The worker is prompted to input the work date and time and the work content. When the operator inputs the work date and time and the work content and presses the execution button, the control unit 303 that executes the reporting process 350 transmits a reporting message to the parent apparatus 101. When the report is permitted, a permission notice is transmitted from the parent apparatus 101. When the report is not permitted, a notice of disapproval is transmitted from the parent apparatus 101. And the control part 303 which performs the report process 350 memorize | stores in the memory | storage part 305 as the report information 305b the information which shows the work date which carried out the report, and the work content, when a report is permitted.

  When the operator performs maintenance work by operating the monitoring control terminal 102, the control unit 303 that executes the exclusion process 351 refers to the exclusion information 305a to check whether the work date and time and the work content are duplicated. . Note that the monitoring control system 100 according to the present embodiment performs maintenance work that has been declared and permitted, and therefore, it is not basically duplicated with other maintenance work. However, the control unit 303 that executes the exclusion process 351 performs the exclusion process when the operator makes a mistake in the work date and time or tries to perform a work that is different from the maintenance work that has been erroneously declared.

  As described above, the monitoring control system 100 according to the present embodiment can perform the exclusive process of the maintenance work, and can surely perform the maintenance work without performing the redundant maintenance work.

  FIG. 6 shows an example of information stored in the storage unit 305 of the monitoring control terminal 102 (F). FIG. 6A shows an example of the exclusive information 305a. The exclusive information 305a includes information on the work date and time of maintenance work performed by the monitoring control terminal 102 other than the own terminal (the monitoring control terminal 102 (F)). Information. In FIG. 6A, work date and time: 16: 00-17: 00 on October 1, 2014, work content: change of setting information of function a, work date and time: 18:00 on October 1, 2014 ~ 19: 00, work content: two pieces of exclusive information 305a for version upgrade of function c.

  The exclusive information 305a in FIG. 6A is maintenance performed by the monitoring control terminal 102 (C) and the monitoring control terminal 102 (A) other than the monitoring control terminal 102 (F) in the management schedule 204a shown in FIG. The work date and time of the work and the work content are shown. As a result, the operator F of the supervisory control terminal 102 (F) declared the period from 16:00 to 17:00 on October 1, 2014 and 12:00 to 13:00 on October 2, 2014 in FIG. Maintenance work is not exclusively processed. In the exclusive information 305a, the work date and time declared by the supervisory control terminal 102 (F): Work date and time overlapping with 16:00 to 17:00 on October 1, 2014: 16:00 on October 1, 2014 There is ~ 17: 00. However, the control unit 303 that executes the exclusion process 351 changes the work date and time, but the function of the work content is a function that can be duplicated. Therefore, the maintenance work of the monitoring control terminal 102 (F) is not excluded.

  Here, the exclusive information 305a shown in FIG. 6A is information obtained by removing the maintenance work information of the own terminal for each monitoring control terminal 102 from the management schedule 204a shown in FIG. For this reason, the processing load when the parent device 101 distributes the exclusive information 305a increases. Therefore, as shown in FIG. 6B, the parent apparatus 101 may generate common exclusive information 305a for all schedules of the management schedule 204a shown in FIG. 4 and distribute it to the monitoring control terminal 102. . In this case, as shown in FIG. 6 (c), each monitoring control terminal 102 stores the maintenance work reported and permitted by its own terminal in the storage unit 305 as the reporting information 305b, as shown in FIG. 6 (b). Exclusive processing can be performed based on the difference between the exclusive information 305a and the reporting information 305b in FIG. Alternatively, when the monitoring control terminal 102 receives the exclusive information 305a shown in FIG. 6B from the parent device 101, the reporting information 305b is removed to generate new exclusive information, and the exclusive information 305a in the storage unit 305 is stored. It may be updated. As a result, the monitoring control terminal 102 can perform exclusive processing on maintenance work that is reported and permitted by another monitoring control terminal 102 without performing exclusive processing on the maintenance work reported by the terminal itself.

  FIG. 7 shows an example of a basic process when the maintenance work is started. 7 shows the parent device 101 (A) shown in FIG. 2, the monitoring control terminal 102 (A) connected to the parent device 101 (A), the monitoring control terminal 102 (C), and the monitoring control terminal. 102 (F) shows processing performed.

  In step S101, the monitoring control terminal 102 (F) declares maintenance work to the parent apparatus 101 (A).

  In step S102, the parent apparatus 101 (A) receives the declaration of the maintenance work received from the monitoring control terminal 102 (F), and starts the arbitration process.

  In step S103, the parent apparatus 101 (A) confirms whether or not there is a maintenance work schedule overlapping the maintenance work received from the monitoring control terminal 102 (F) with reference to the management schedule 204a. At this time, the parent apparatus 101 determines whether or not duplication is possible for each function of the maintenance work. The parent apparatus 101 proceeds to the process of step S104 when there is a schedule of overlapping maintenance work, and proceeds to the process of step S105 when there is no schedule of overlapping maintenance work.

  In step S104, the parent apparatus 101 (A) transmits a non-permission notification to the monitoring control terminal 102 (F) that has submitted the maintenance work, and stops the arbitration process.

  In step S105, the parent apparatus 101 (A) generates exclusive information 305a.

  In step S106, the parent apparatus 101 (A) transmits the exclusive information 305a generated in step S103 to the monitoring control terminal 102 (C).

  In step S107, the parent apparatus 101 (A) also transmits the exclusive information 305a to the monitoring control terminal 102 (A) connected to the own apparatus. Note that, as described with reference to FIG. 2, the monitoring control terminal 102 may not be connected to the parent apparatus 101. In this case, the process of this step is not performed.

  In step S108, the monitoring control terminal 102 (C) transmits a response indicating that the exclusive information 305a has been received to the parent apparatus 101.

  In step S109, the monitoring control terminal 102 (A) transmits a response indicating that the exclusive information 305a has been received to the parent apparatus 101 connected to the own terminal.

  Here, the parent apparatus 101 (A) may determine whether or not the same number of responses as the number of the monitoring control terminals 102 that transmitted the exclusive information 305a have been received. For example, in the case of FIG. 7, when the parent device 101 (A) returns responses from the two devices, the monitoring control terminal 102 (C) and the monitoring control terminal 102 (A) connected to the own device, Proceed to processing. When a response is returned from only one of the devices, the parent device 101 (A) retransmits the exclusive information 305 a a predetermined number of times (for example, three times), and responses are received from all the monitoring control terminals 102. You may wait until it comes. If no response is returned, the parent device 101 (A) may continue the processing assuming that the monitoring control terminal 102 has been removed or the power has been turned off. Alternatively, the monitoring control terminal 102 may notify the parent device 101 (A) of connection and power on / off when the electronic device 101 is connected, when the power is turned on, or before the power is turned off. . Thereby, the parent device 101 (A) can surely grasp the state of the monitoring control terminal 102.

  In step S110, the parent apparatus 101 (A) transmits a permission notice to the monitoring control terminal 102 (F) that declared the maintenance work.

  In step S111, the parent apparatus 101 (A) registers the work date and time of the maintenance work of the monitoring control terminal 102 (F) and the work content in the management schedule 204a.

  In step S112, the monitoring control terminal 102 (F) displays date information on, for example, a screen so that the worker F can confirm the declared work date. Thereby, the worker F can wait until the declared work date and time comes.

  In step S113, the supervisory control terminal 102 (F) displays a message on the screen when, for example, the declared work date / time is reached. Thereby, the worker F can start the maintenance work.

  In step S114, the monitoring control terminal 102 (F) determines whether or not the reported end date / time has come. Then, for example, the monitoring control terminal 102 (F) displays a message on the screen when the reported end date / time is reached. Thereby, the worker F can perform the maintenance work until the reported end date and time.

  In step S115, the monitoring control terminal 102 (F) ends the reported maintenance work.

  Thus, in the monitoring control system 100 according to the present embodiment, the worker F of the monitoring control terminal 102 (F) declares the maintenance work to the parent device 101 (A) and receives the permission, and then performs the maintenance work. Run. At this time, the parent apparatus 101 (A) checks whether the work date / time and the work content of the declared maintenance work overlap with the work date / time and the work content of the maintenance work declared and permitted by another monitoring control terminal 102. Since the permission is issued, duplicate maintenance work can be eliminated. Further, the parent device 101 (A) notifies the other monitoring control terminal 102 (A) and the monitoring control terminal 102 (C) of the maintenance work date and time and the work content as exclusive information 305a. It is possible to prevent the maintenance control terminal 102 from performing redundant maintenance work.

  Note that if the maintenance work is erroneously started before the work date and time declared by the worker F, the supervisory control terminal 102 (F) performs an exclusive process. In this case, it is assumed that the monitoring control terminal 102 (F) stores information reported by the terminal itself. For example, as described with reference to FIG. 6C, the monitoring control terminal 102 stores the information reported by the terminal itself as the reporting information 305b, and performs an exclusion process based on the reporting information 305b. For example, in the report information 305b of FIG. 6C, when the maintenance work (setting of the line test function of the function b) is to be performed at 15:00 on October 1, 2014, the monitoring control terminal 102 (F) Since it is different from the work date and time of the declared maintenance work, exclusive processing is performed. At this time, the monitoring control terminal 102 (F) displays a message indicating that the work date / time is different on the monitor 302. Similarly, the monitoring control terminal 102 (F) performs the exclusion process even when the work date and time are correct but the work contents are different, and displays a message indicating that the work contents are different on the monitor 302.

  FIG. 8 shows an example of processing in the case where a work start notification and work end notification are given from the authorized monitoring control terminal 102 (F) to the parent apparatus 101 (A). In FIG. 8, the same reference numerals as those in FIG. 7 are the same as or similar to those in FIG.

  In FIG. 8, processing different from FIG. 7 is step S150, step S151, step S152, step S153, and step S154. In FIG. 8, the processing from step S101 to S112 is the same as or similar to the processing in FIG. When the work date and time declared in step S112 is reached (Yes), the process of step S150 is performed.

  In step S150, the monitoring control terminal 102 (F) transmits a start notification to the parent apparatus 101 (A) when the maintenance work is started on the work date and time declared by the worker F.

  In step S151, the parent apparatus 101 (A) receives the start notification of the monitoring control terminal 102 (F) and confirms the management schedule 204a. Note that the parent apparatus 101 (A) may set a flag by indicating a flag indicating that work has started or is in progress in the management schedule 204 a.

  In step S152, the monitoring control terminal 102 (F) monitors the operation for ending the maintenance work of the worker F, and determines whether or not the worker F has finished the maintenance work earlier than the end date and time of the maintenance work. Determine. Then, the monitoring control terminal 102 (F) proceeds to the process of step S115 when the maintenance work is finished, and proceeds to the process of step S114 when the maintenance work is not finished.

  In FIG. 8, when it is determined in step S152 that the maintenance work has been completed (Yes), or when the end date / time is reached in step S114 (Yes), the process of step S153 is performed after the process of S115 is performed. Processing is performed.

  In step S153, the monitoring control terminal 102 (F) transmits an end notification to the parent apparatus 101 (A) after the maintenance work is completed.

  In step S154, the parent apparatus 101 (A) receives the notice of termination of the monitoring control terminal 102 (F) and cancels the information about the work date and work contents registered in the management schedule 204a. In the process of canceling the information about the work date and time and the work content, the information may be deleted from the management schedule 204a, or a flag indicating completion of work may be provided in the management schedule 204a. .

  In this way, the parent apparatus 101 (A) can manage whether or not the maintenance work has been started and whether or not the maintenance work has been completed in the monitoring control terminal 102 (F) that has declared the maintenance work. it can. For example, the parent device 101 (A) can confirm the work on the reported monitoring control terminal 102 (F) when the start notification is not received even when the reported maintenance work start date and time comes. Here, the work confirmation can be performed by, for example, the parent apparatus 101 (A) transmitting a maintenance work reminder to the monitoring control terminal 102 (F) and receiving a response from the monitoring control terminal 102 (F). When the maintenance work is cancelled, the parent device 101 (A) notifies the other monitoring control terminal 102, and exclusive information in which the work date and time and the work content of the monitoring control terminal 102 (F) are deleted. 305a is transmitted. In this case, the monitoring control terminal 102 (F) transmits a cancellation notification to the parent apparatus 101, for example. As a result, workers of other monitoring control terminals 102 who are scheduled to perform the same maintenance work can carry out the maintenance work in advance.

  Further, when the parent device 101 (A) receives an end notification from the monitoring control terminal 102 (F) before the declared work end date and time, the parent device 101 (A) notifies the other monitoring control terminal 102 and also the monitoring control terminal 102 ( F) Exclusive information 305a in which the work date and time and work contents are deleted is transmitted. As a result, workers of other monitoring control terminals 102 who are scheduled to perform the same maintenance work can carry out the maintenance work in advance.

  FIG. 9 shows an example of managing the start and end of the maintenance work of the monitoring control terminal 102 (F) to which the parent apparatus 101 (A) has declared the maintenance work. In FIG. 9, the processing with the same reference numerals as in FIG. 8 performs the same or similar processing as in FIG.

  In FIG. 9, the parent apparatus 101 (A) executes the process of step S160 after the process of step S111.

  In step S160, the parent apparatus 101 (A) determines whether or not a start notification is received from the monitoring control terminal 102 (F) in step S150. When the parent device 101 (A) receives a start notification from the monitoring control terminal 102 (F), the parent device 101 (A) proceeds to the process of step S151. When the parent device 101 (A) does not receive a start notification from the monitoring control terminal 102 (F), step S161 is performed. Proceed to the process.

  In step S161, the parent apparatus 101 (A) determines whether or not a predetermined time (for example, 30 minutes) set in advance has elapsed from the reported start date of maintenance work. Then, the parent device 101 (A) proceeds to the process of step S162 when the specified time has elapsed, and returns to the process of step S160 when the specified time has not elapsed.

  In step S162, the parent apparatus 101 (A) transmits a work confirmation message to the monitoring control terminal 102 (F). Then, the monitoring control terminal 102 (F) displays a message indicating that the maintenance work start date has passed on the monitor 302, and asks the worker F for a response. The response includes information indicating, for example, cancellation of maintenance work, preparation of maintenance work, and the like.

  In step S163, when the parent device 101 (A) receives a response from the monitoring control terminal 102 (F) and the maintenance operation is canceled, the parent device 101 (A) proceeds to the process of step S164, and the maintenance operation is not canceled such as during preparation. In this case, the process returns to step S160. The parent apparatus 101 (A) may determine that the maintenance work has been canceled when there is no response from the monitoring control terminal 102 (F) during a preset time.

  In step S164, since the maintenance operation of the monitoring control terminal 102 (F) has been canceled, the parent apparatus 101 (A) cancels the information about the operation date / time and the operation content of the monitoring control terminal 102 (F) from the management schedule 204a. To do. As described in step S154 of FIG. 8, the information on the work date / time and the work content may be canceled by deleting the information from the management schedule 204a or by setting a flag indicating the work end. You may do it.

  In this way, the parent device 101 (A) confirms the cancellation of the maintenance work and notifies the other monitoring control terminal 102 when the start notice is not received even when the declared maintenance work start date and time comes. be able to. As a result, workers of other monitoring control terminals 102 who are scheduled to perform the same maintenance work can carry out the maintenance work in advance.

  On the other hand, in FIG. 9, as described in FIG. 8, the parent device 101 (A) cancels the information on the work date and work contents of the monitoring control terminal 102 (F) from the management schedule 204 a in step S <b> 154, The following processing is executed.

  In step S166, the parent device 101 (A) confirms the date and time when the end notification is received by the clock unit 205, and whether or not the work time remains with respect to the work end date and time reported from the monitoring control terminal 102 (A). Is determined. Then, the parent device 101 (A) proceeds to step S167 when the work time longer than the preset time remains, and does nothing when the work time is less than the preset time.

  In step S167, the parent apparatus 101 (A) notifies the other monitoring control terminal 102 of the end of the maintenance work, and transmits exclusive information 305a in which the work date and time of the monitoring control terminal 102 (F) are deleted. To do. Alternatively, each monitoring control terminal 102 may perform a process of deleting the maintenance work information from the exclusive information 305a in response to the notification (finished maintenance work information) of the parent apparatus 101. Alternatively, the monitoring control terminal 102 may refer to the current date and time of the clock unit 306 and delete the maintenance work information of the past work date and time stored in the exclusive information 305a.

  In this way, the parent apparatus 101 (A) determines whether or not the work has been completed earlier than the declared work end date and time, and if the work has ended earlier than scheduled, the remaining work time is transferred to the other monitoring control terminal 102. The efficiency of maintenance work can be improved.

  FIG. 10 shows an example of processing when the maintenance work is extended. In FIG. 10, the processing with the same reference numerals as in FIG. 7 performs the same or similar processing as in FIG.

  In FIG. 10, after the maintenance work is started in step S113, the worker F of the monitoring control terminal 102 (F) performs a procedure for extending the maintenance work when the maintenance work is not likely to be completed by the work end date and time declared. . Note that the processing from step S201 to step S211 described below is executed in the same procedure as the processing from step S101 to step S111 of the reporting process shown in FIG.

  In step S201, the worker F transmits an extension report requesting extension of the maintenance work from the monitoring control terminal 102 (F) to the parent apparatus 101 (A).

  In step S202, the parent apparatus 101 (A) receives the maintenance work extension report received from the monitoring control terminal 102 (F), and starts the arbitration process.

  In step S203, the parent apparatus 101 (A) refers to the management schedule 204a to determine whether there are duplicate maintenance work schedules on the work date and time for extending the maintenance work received from the monitoring control terminal 102 (F). To confirm. At this time, the parent apparatus 101 determines whether or not duplication is possible for each function of the maintenance work. The parent apparatus 101 proceeds to the process of step S204 when there is a schedule of overlapping maintenance work, and proceeds to the process of step S205 when there is no schedule of overlapping maintenance work.

  In step S204, the parent apparatus 101 (A) transmits a non-permission notice to the monitoring control terminal 102 (F) that has submitted the maintenance work, and stops the arbitration process.

  In step S205, the parent apparatus 101 (A) generates exclusive information 305a.

  In step S206, the parent apparatus 101 (A) transmits the exclusive information 305a generated in step S203 to the monitoring control terminal 102 (C).

  In step S207, the parent apparatus 101 (A) also transmits the exclusive information 305a to the monitoring control terminal 102 (A) connected to the own apparatus. Note that, as described with reference to FIG. 2, the monitoring control terminal 102 may not be connected to the parent apparatus 101. In this case, the process of this step is not performed.

  In step S208, the monitoring control terminal 102 (C) transmits a response indicating that the exclusive information 305a has been received to the parent apparatus 101.

  In step S209, the monitoring control terminal 102 (A) transmits a response indicating that the exclusive information 305a has been received to the parent device 101 connected to the own terminal.

  In step S210, the parent apparatus 101 (A) transmits an extension permission notification for permitting the extension of the maintenance work to the monitoring control terminal 102 (F) that has declared the extension of the maintenance work.

  In step S211, the parent apparatus 101 (A) extends the maintenance work date of the monitoring control terminal 102 (F) and registers it in the management schedule 204a.

  As described above, the processing from step S201 to step S211 is executed in the same manner as the processing from step S101 to step S111 at the time of reporting described with reference to FIG. In step S210, the monitoring control terminal 102 (F) that has received the extension permission notification from the parent apparatus 101 (A) executes the following process.

  In step S212, the monitoring control terminal 102 (F) determines whether or not extension is permitted. Then, the monitoring control terminal 102 (F) proceeds to the process of step S213 when the extension is permitted, and proceeds to the process of step S114 when the extension is not permitted. Note that the processing in step S114 is the same as the processing in step S114 described with reference to FIG.

  In step S213, the monitoring control terminal 102 (F) extends the current end date / time to the end date / time permitted from the parent device 101 (A), for example, the end date / time of the report information 305b in the storage unit 305 is extended. Update day and time. The supervisory control terminal 102 (F) proceeds to the process of step S114 after the process of step S213.

  In step S114, as described with reference to FIG. 7, the monitoring control terminal 102 (F) determines whether or not the end date / time has come. Then, the worker F of the supervisory control terminal 102 (F) performs maintenance work until the end date / time of the extension declaration, and when the end date / time is reached, the process proceeds to step S115, and the supervisory control terminal 102 (F) Then, the maintenance work for which extension was declared is completed.

  Here, also in the case of the extension report shown in FIG. 10, as described in FIGS. 8 and 9, the monitoring control terminal 102 (F) transmits the end notice to the parent apparatus 101 (A). Also good.

  In this way, the worker F issues a maintenance work extension declaration from the monitoring control terminal 102 (F) to the parent apparatus 101 (A), and extends the maintenance work after receiving the extension permission from the parent apparatus 101 (A). To do. At this time, the parent device 101 (A) confirms whether there is any overlap between the work date / time and the work content of the extended maintenance work and the work date / time and work content of the maintenance work permitted to other monitoring control terminals 102. And give extension permission. Further, the parent apparatus 101 (A) updates the exclusive information 305 a based on the work date / time and the work content of the maintenance work permitted to be extended, and notifies all the monitoring control terminals 102. Thereby, the parent apparatus 101 (A) can eliminate the redundant maintenance work.

  In step S201, the worker F may make an addition or change declaration of work content from the monitoring control terminal 102 (F) to the parent apparatus 101 (A). Alternatively, the worker F may perform both the work date extension declaration and the work content addition or change declaration from the monitoring control terminal 102 (F) to the parent apparatus 101 (A). In any case, since the parent apparatus 101 (A) refers to the management schedule 204a to check whether or not it overlaps with the work date and time of other maintenance work and the work content, the duplicate maintenance work should be eliminated. Can do.

  In addition, when the worker F intends to extend the work date and time or change the work content without permission, the monitoring control terminal 102 (F) refers to the exclusive information 305 a and rejects the operation of the worker F. Then, the monitoring control terminal 102 (F) displays a message on the monitor 302 indicating that the content differs from the declaration content. Thereby, the supervisory control terminal 102 (F) can prevent the worker F from arbitrarily extending the work date and time or changing the work content.

  FIG. 11 shows a processing example for permitting maintenance work with duplicate work dates and times when the functions are different. In FIG. 11, the same reference numerals as those in FIG. 7 are the same as or similar to those in FIG. 7.

  In step S101 of FIG. 11, as in step S101 described in FIG. 7, the worker F reports maintenance work (function a) from the monitoring control terminal 102 (F) to the parent apparatus 101 (A). Then, the parent device 101 (A) generates the exclusive information 305a by executing the same processing as the processing from step S102 to step S105 described in FIG. Further, the parent device 101 (A) executes the same processing as the processing from step S106 to step S109 described in FIG. 7 to obtain the exclusive information 305a from the monitoring control terminal 102 (C) and the monitoring control terminal 102 (A). Send to. In step S110, the monitoring control terminal 102 (F) receives a permission notice from the parent device 101 (A). The parent apparatus 101 (A) registers the work date and time of the maintenance work (function a) of the monitoring control terminal 102 (F) and the work content in the management schedule 204 a (step S 111). In step S112, the monitoring control terminal 102 (F) displays a message on the screen when, for example, the reported maintenance start date and time comes. Then, the worker F starts maintenance work (step S113).

  On the other hand, in step S131 of FIG. 11, the worker C reports maintenance work (function b) from the monitoring control terminal 102 (C) to the parent apparatus 101 (A). Then, in the processing from step S132 to step S135, the parent device 101 (A) performs the same processing as the processing from step S102 to step S105 in FIG. 7 to generate exclusive information 305a. Furthermore, in the processing from step S136 to step S139, the parent apparatus 101 (A) performs the same processing as the processing from step S106 to step S109 in FIG. 7, and sends the exclusive information 305a to the other monitoring control terminal 102. Send. In the example of FIG. 11, the exclusive information 305a is transmitted to the monitoring control terminal 102 (F) and the monitoring control terminal 102 (A). Then, the monitoring control terminal 102 (C) receives a permission notification from the parent device 101 (A) (step S140). The parent apparatus 101 (A) registers the work date and time and the work content of the maintenance work (function b) of the monitoring control terminal 102 (C) permitted the maintenance work in the management schedule 204 a (step S 141). In step S142, for example, the monitoring control terminal 102 (C) displays a message on the screen when the reported maintenance work start date and time comes. Then, the worker C starts the maintenance work for the function a (step S143). Note that the process of step S144 and the process of step S145 of the monitoring control terminal 102 (C) are executed in the same manner as the process of step S114 and the process of step S115 of the monitoring control terminal 102 (F).

  Here, in FIG. 11, the work date and time of the maintenance work of the function a of the monitoring control terminal 102 (F) and the work date and time of the maintenance work of the function b of the monitoring control terminal 102 (C) partially overlap. However, for example, as described with reference to FIG. 4, the maintenance work for the function a is a change of setting information, and the maintenance work for the function b is a setting of the line test function. A) permits both maintenance operations redundantly. Thereby, the worker F and the worker C can perform the maintenance work in parallel even though the work dates and times of the maintenance work overlap.

As described above, the monitoring control system 100 according to the present embodiment prevents the electronic device 101 and the system from being damaged even when a plurality of workers perform maintenance work from the plurality of monitoring control terminals 102. can do.
(Application 1)
In the previous embodiment, the monitoring control terminal 102 holds the exclusive information 305a transmitted from the parent device 101, and performs exclusive processing of maintenance work by the operator operating the own terminal. The application example 1 shows an example in which the electronic device 101 (parent device 101 or child device 101) performs exclusive processing of maintenance work performed from the monitoring control terminal 102 connected to the own device.

  FIG. 12 shows an example of the electronic apparatus 101 in which the function of the monitoring control terminal 102 described in FIG. 5B is added to the block of the electronic apparatus 101 described in FIG. FIG. 12A shows an example in which the electronic device 101 functions as the child device 101 shown in FIG. 2, and FIG. 12B shows the electronic device 101 operating as the parent device 101 shown in FIG. An example of the case is shown. Note that the hardware configuration is the same even when the electronic device 101 operates as the parent device 101 or the child device 101. The parent device 101 and the child device 101 differ in the processing of the control unit 203 and the information stored in the storage unit 204. Note that the electronic device 101 in FIG. 12B operates as the parent device 101 and at the same time operates as the child device 101 when the monitoring control terminal 102 is connected to the own device and maintenance work is performed by an operator. Process. Hereinafter, the electronic device 101 in FIG. 12A is referred to as a child device 101, and the electronic device 101 in FIG. 12B is referred to as a parent device 101.

  In FIG. 12A, a different part from FIG. 3A is demonstrated. The slave device 101 executes the reporting process 261 and the exclusion process 262 according to the program of the control unit 203.

  The control unit 203 that executes the reporting process 261 transmits a reporting message to the parent device 101 when, for example, the worker performs a maintenance work reporting from the monitoring control terminal 102 connected to the terminal IF 201. Here, the maintenance operation reporting operation executed from the monitoring control terminal 102 is performed by, for example, the operator pressing the report button displayed on the monitor 302 by the operation IF 301, and the operation date and time and the work content on the screen displayed on the monitor 302. Enter. When the operator inputs the work date and time and the work content and presses the execution button, the input information is sent to the child device 101, and the control unit 203 sends a report message to the parent device 101 by the report processing 261. To do. When the report is permitted, a permission notice is transmitted from the parent apparatus 101. When the report is not permitted, a notice of disapproval is transmitted from the parent apparatus 101. The child device 101 transmits a permission notification or a non-permission notification received from the parent device 101 to the monitoring control terminal 102 and causes the monitor 302 to display the notification. And the control part 203 which performs the report process 261 memorize | stores the information which shows the work date and time of work and work content in the memory | storage part 204 as report information 305b, when a report is permitted.

  When the operator performs maintenance work from the monitoring control terminal 102 connected to the terminal IF 201, the control unit 203 that executes the exclusion process 262 monitors the content of the maintenance work and refers to the exclusive information 305a to determine the work date and time and the work. Check for duplicate content. Then, the control unit 203 that executes the exclusion process 262 rejects the maintenance work and performs the exclusion process when the worker makes a mistake in the work date and / or tries to perform a work different from the declared maintenance work. Then, the control unit 203 transmits information indicating that the maintenance work has been exclusively processed to the monitoring control terminal 102 and causes the monitor 302 to display the information.

  As described above, the slave device 101 according to the present embodiment can perform maintenance work exclusion processing instead of the monitoring control terminal 102 described with reference to FIG. 5B, and erroneously perform maintenance work. Therefore, maintenance work can be performed reliably. In particular, in this embodiment, since the child device 101 performs the exclusive process, even when an attempt is made to perform maintenance work by connecting the monitoring control terminal 102 to the child device 101 to which the monitoring control terminal 102 is not connected from the middle. Maintenance work can be avoided.

  FIG. 12B illustrates an example in which the parent device 101 performs an exclusive process in the same manner as the child device 101 illustrated in FIG. The parent device 101 is the same as the child device 101 in terms of hardware, but has the parent function described with reference to FIG. 3B, and is based on the monitoring control terminal 102 connected to the other child device 101. Manage maintenance work.

  In FIG. 12B, the parent device 101 shown in FIG. 12B performs arbitration processing 251 and management processing 252 for operating as the parent device shown in FIG. In addition, a reporting process 261 and an exclusion process 262 are executed. Note that the reporting process 261 and the exclusion process 262 executed by the control unit 203 are the same as those in the monitoring control terminal 102 described with reference to FIG. For example, when the operator executes a maintenance work reporting operation from the monitoring control terminal 102 connected to the terminal IF 201, the control unit 203 that executes the reporting process 261 reports to the parent device 101. Therefore, it is processed in its own device. For example, the control unit 203 that executes the reporting process 261 notifies the arbitration process 251 in the same control unit 203 of the reporting. Then, the control unit 203 that executes the arbitration process 251 notifies the reporting process in the same control unit 203 of permission or non-permission. Then, the permission notification or the non-permission notification is transmitted from the parent device 101 to the monitoring control terminal 102 and is displayed on the monitor 302 of the monitoring control terminal 102. And the control part 203 which performs the report process 261 memorize | stores in the memory | storage part 204 as the report information 305b the information which shows the work date and content of work, when the report is permitted by the mediation process 251. Information for exclusive processing of the maintenance work generated by the arbitration processing 251 is stored in the storage unit 204 as exclusive information 305a.

  When the operator performs maintenance work from the monitoring control terminal 102 connected to the terminal IF 201, the control unit 203 that executes the exclusion process 262 monitors the content of the maintenance work and refers to the exclusive information 305a to determine the work date and time and the work. Check for duplicate content. Then, the control unit 203 that executes the exclusion process 262 rejects the maintenance work and rejects the maintenance work if the worker makes a mistake in the work date or time or tries to perform a work different from the declared maintenance work. Information indicating this is transmitted to the monitoring control terminal 102 and displayed on the monitor 302.

  Note that the processing when the parent device 101 in FIG. 12B functions as the parent device (arbitration processing 251 and management processing 252) has been described with reference to FIG.

As described above, the parent device 101 according to the present embodiment functions as a parent device, and at the same time, can perform maintenance work exclusion processing instead of the monitoring control terminal 102 described with reference to FIG. Maintenance work can be performed reliably without any work being performed. In particular, in the present embodiment, even when the monitoring control terminal 102 is connected to the parent apparatus 101 to which the monitoring control terminal 102 is not connected and maintenance work is performed from the middle, the parent apparatus 101 performs the exclusive process, and therefore, there is a duplication. Maintenance work can be avoided.
(Application example 2)
In the previous embodiment, the parent device 101 manages the maintenance work, permits the monitoring control terminal 102 or the child device 101 to report, or generates the exclusive information 305a. In the second application example, the management monitoring control device 104 illustrated in FIG. 1 has the function of the parent device 101 and manages maintenance work of the monitoring control terminal 102 connected via the network.

  FIG. 13 shows an example of a management monitoring control device 104 that manages maintenance work. In the application example 2, the management monitoring control device 104 is connected to the monitoring control terminal 102 (A), the monitoring control terminal 102 (C), and the monitoring control terminal 102 (F) as in the example of FIG. Yes. In FIG. 13, the management monitoring control device 104 functions as a server, and includes an operation IF 401, a monitor 402, a control unit 403, a LANIF 404, a storage unit 405, and a clock unit 406.

  The operation IF 401 has a man-machine interface such as a keyboard and a mouse, and an operator operates the operation IF 401 to manage maintenance work of the monitoring control terminal 102.

  The monitor 302 uses a liquid crystal display or the like to display a maintenance work schedule and the like, and the operator can check the report contents of the worker and the progress of the maintenance work.

  As the control unit 403, a CPU or the like is used, and a management program 403a is installed. The control unit 403 operates in accordance with the management program 403a, and executes a process for managing the maintenance work of the monitoring control terminal 102, similar to the parent apparatus 101 in FIG.

  Similar to the arbitration process 251 of the parent device 101, the control unit 403 that executes the arbitration process 451 receives a maintenance work report from the monitoring control terminal 102 connected via the monitoring network, and performs other maintenance work. It is determined whether the work date and time and the work content overlap. And the control part 403 which performs the arbitration process 451 notifies non-permission to the reported monitoring control terminal 102, when it overlaps with other maintenance work. In addition, when there is no overlap with other maintenance work, the control unit 403 that executes the arbitration process 451 generates the exclusive information 305a and all the connected monitoring control terminals 102 as described in FIG. 3B and the like. Exclusive information 305a is transmitted. Then, the control unit 403 that executes the arbitration process 451 receives a response from the monitoring control terminal 102 that has transmitted the exclusive information 305a, and notifies the reporting monitoring control terminal 102 of permission.

  The control unit 403 that executes the management process 452 manages the work date and time and the work contents of all the maintenance work declared by the monitoring control system 100, similarly to the parent device 101. For example, each time the control unit 403 that executes the management process 452 receives a maintenance work declaration from the monitoring control terminal 102 and permits it, the control unit 403 associates the information that specifies the declared monitoring control terminal 102 with the work date and time, and sets the parent The management schedule 204a is updated in the same manner as the apparatus 101. Further, the control unit 403 that executes the arbitration process 451 determines whether or not it overlaps with the maintenance work of other monitoring control terminals 102 by referring to the management schedule 204 a when a new report is received from the monitoring control terminal 102. To do.

  The LANIF 404 has an interface circuit for connection via a LAN, is connected to the LANIF 307 of the monitoring control terminal 102 via the LAN, and can communicate with the monitoring control terminal 102.

  The storage unit 405 stores a management schedule 204a for managing the maintenance work schedule of the entire system, similar to the parent apparatus 101 described with reference to FIG. When the management supervisory control device 104 receives and accepts the declaration of the maintenance work, the management monitoring control device 104 includes information indicating the date and time of the permitted maintenance work and the content of the work, and information for identifying the declared monitoring control terminal 102 and child device 101. Are stored in the management schedule 204a. Further, the storage unit 405 may store information (function information 204b) regarding functions that can be duplicated, similar to the parent device 101 illustrated in FIG.

  The clock unit 406 has a clock function such as an RTC, and, like the clock unit 205 of the electronic apparatus 101 and the clock unit 306 of the monitoring control terminal 102, an NTP (Network Time Protocol) that provides a radio clock function and a standard time. Connected to a server that supports, and always performs error correction. As described above, the monitoring control system 100 according to the present embodiment is capable of accurately managing the work date and time because the times of the electronic device 101, the monitoring control terminal 102, and the management monitoring control device 104 are always synchronized. it can.

  As described above, the management monitoring control device 104 permits (or does not permit) the maintenance work reported by the monitoring control terminal 102 and transmits the exclusive information 305a to all the monitoring control terminals 102, similarly to the parent device 101. In addition, it can be registered and managed in the management schedule 204a. Note that the monitoring control system 100 according to the present embodiment may be provided with a subordinate management monitoring control device 104 to be switched when a failure occurs in preparation for a case where the management monitoring control device 104 fails.

  FIG. 14 shows a processing example when the management monitoring control device 104 manages maintenance work of the monitoring control terminal 102. In FIG. 14, the processing with the same reference numerals as in FIG. 7 is the same as or similar to the processing in FIG. In FIG. 14, the difference from FIG. 7 is that the management monitoring control device 104 performs the processing performed by the parent device 101 (A) of FIG.

  In step S301, as in step S101, the monitoring control terminal 102 (F) performs maintenance work (function a) directly on the management monitoring control apparatus 104 via the management network, as shown in FIG. Declared.

  In step S302, similar to the parent device 101 (A) in step S102, the management monitoring control device 104 receives the declaration of the maintenance work received from the monitoring control terminal 102 (F), and starts the arbitration process.

  In step S303, similar to the parent apparatus 101 (A) in step S103, the management monitoring control apparatus 104 has a maintenance work schedule that overlaps with the maintenance work received from the monitoring control terminal 102 (F). This is confirmed with reference to the management schedule 204a. At this time, the management monitoring control device 104 determines whether or not duplication is possible for each function of the maintenance work. The management supervisory control device 104 proceeds to the process of step S304 when there is a plan for overlapping maintenance work, and proceeds to the process of step S305 when there is no plan for redundant maintenance work.

  In step S304, similar to the parent device 101 (A) in step S104, the management monitoring control device 104 transmits a disapproval notification to the monitoring control terminal 102 (F) that has made the maintenance work declaration, and performs arbitration processing. Cancel.

  In step S305, similar to the parent device 101 (A) in step S105, the management monitoring control device 104 generates exclusive information 305a.

  In step S306, similar to the parent device 101 (A) in step S106, the management monitoring control device 104 transmits the exclusive information 305a generated in step S303 to the monitoring control terminal 102 (C).

  In step S307, similar to the parent device 101 (A) in step S107, the management monitoring control device 104 also transmits the exclusive information 305a to the monitoring control terminal 102 (A) connected to the own device.

  In step S308, the monitoring control terminal 102 (C) transmits a response indicating that the exclusive information 305a has been received, to the management monitoring control apparatus 104.

  In step S309, the monitoring control terminal 102 (A) transmits a response indicating that the exclusive information 305a has been received, to the management monitoring control apparatus 104.

  Here, like the parent device 101 (A), the management monitoring control device 104 determines whether or not it has received the same number of responses as the number of monitoring control terminals 102 that transmitted the exclusive information 305 a. Also good.

  In step S310, similar to the parent device 101 (A) in step S110, the management monitoring control device 104 transmits a permission notice to the monitoring control terminal 102 (F) that declared the maintenance work.

  In step S311, similarly to the parent device 101 (A) in step S111, the management monitoring control device 104 registers the work date and time and the work content of the maintenance work of the monitoring control terminal 102 (F) in the management schedule 204a.

  Thereafter, the processing from step S112 to step S115 is performed in the same manner as in FIG. 7, and the worker F of the monitoring control terminal 102 (F) waits until the declared work date and time and starts the maintenance work, and finishes and finishes. Maintenance work can be performed.

  As described above, each time the management supervisory control device 104 receives a permit for maintenance work from the supervisory control terminal 102 and permits it, information (name in the example of FIG. 4) specifying the declared supervisory control terminal 102 and work date and time. And the work content are associated with each other and stored in the management schedule 204a. When the management monitoring control device 104 receives a new maintenance work report from the monitoring control terminal 102, the management monitoring control apparatus 104 refers to the management schedule 204a to determine whether the maintenance work is duplicated with other maintenance work. Furthermore, the management monitoring control device 104 generates exclusive information 305a and transmits it to all the monitoring control terminals 102 when the reported maintenance work does not overlap with other maintenance work. In this way, the management monitoring control device 104 can manage the monitoring control terminal 102 so that redundant maintenance work is not performed. When the monitoring control terminal 102 is added in the middle, the latest information (exclusive information 305a, etc.) may be automatically obtained from the management monitoring control apparatus 104.

  As described above, as described in each embodiment, the monitoring control system 100 can prevent a failure from occurring even when a plurality of workers perform maintenance work on the plurality of monitoring control terminals 102.

  From the above detailed description, features and advantages of the embodiments will become apparent. This is intended to cover the features and advantages of the embodiments described above without departing from the spirit and scope of the claims. Also, any improvement and modification should be readily conceivable by those having ordinary knowledge in the art. Therefore, there is no intention to limit the scope of the inventive embodiments to those described above, and appropriate modifications and equivalents included in the scope disclosed in the embodiments can be used.

DESCRIPTION OF SYMBOLS 100 ... Supervisory control system; 101, 101 (A), 101 (B), 101 (C), 101 (D), 101 (E), 101 (F) ... Apparatus; 101, 101 (A) ... Parent devices; 101, 101 (B), 101 (C), 101 (D), 101 (E), 101 (F) ... Child devices; 102, 102 (A), 102 (C), 102 (F): supervisory control terminal; 103: network; 104 ... supervisory control device for management; 201 ... terminal IF; 202 ... communication unit; 203 ... control unit; ··· storage section; 204a ··· management schedule; 204b ··· function information; 205 ··· clock portion; 250 ··· communication processing; 251 ··· arbitration processing · 252 ··· management processing; -Declaration processing; 262 ... Exclusive processing; 301 ... Operation 302; monitor; 303 ... control unit; 303a ... maintenance program; 304 ... device IF; 305 ... storage unit; 305a ... exclusive information; 306 ... Clock unit; 307 ... LANIF; 350 ... Declaration processing; 351 ... Exclusive processing; 401 ... Operation IF; 402 ... Monitor; 403 ... Control unit; ..Management program; 404 ... LANIF; 405 ... storage unit; 406 ... clock unit; 451 ... arbitration processing;

Claims (17)

In a monitoring control system in which a plurality of electronic devices are connected via a network, and two or more monitoring control terminals that perform maintenance work are connected to any of the electronic devices.
One of the plurality of electronic devices is set as a parent device that manages maintenance work of the monitoring control terminal,
The parent device is
A process for referring to a management schedule for managing a schedule of maintenance work when receiving a report from the monitoring control terminal;
If it overlaps with other maintenance work, a notification of disapproval is sent to the declared monitoring control terminal, and if it does not overlap with other maintenance work, a permission notice is sent to the declared monitoring control terminal and the maintenance work declared. And processing for sending exclusive information for performing exclusive processing to all the monitoring control terminals,
The supervisory control terminal
Processing for declaring maintenance work to the parent device;
A monitoring control system that performs an exclusion process for maintenance work performed by the terminal based on the exclusion information received from the parent device. The monitoring control system according to claim 1,
The exclusive information includes information on the work date and time of maintenance work, and information indicating the work content of the maintenance work,
Even if the maintenance work date and time reported from the monitoring and control terminal is duplicated with other maintenance work, the parent device sends the information to the monitoring and control terminal that has declared it if the work content can be duplicated. A supervisory control system characterized by transmitting a permission notice. In a monitoring control system in which a plurality of electronic devices are connected via a network, and two or more monitoring control terminals that perform maintenance work are connected to any of the electronic devices.
One of the plurality of electronic devices is set as a parent device that manages maintenance work of the monitoring control terminal,
The parent device is
A process of referring to a management schedule for managing a schedule of maintenance work when receiving a report of maintenance work from another electronic device including the own apparatus to which the monitoring control terminal is connected;
If it is duplicated with other maintenance work, a notice of disapproval is sent to the electronic device including the declared device, and if it is not duplicated with other maintenance work, a notice of permission is sent to the electronic device that has been declared and declared. Processing to send exclusive information for performing exclusive processing for maintenance work to all the electronic devices including the own device,
The electronic device including the parent device is
When an operation for declaring maintenance work is performed from the connected monitoring control terminal, processing for declaring maintenance work to the parent device;
A monitoring control system that performs an exclusion process for maintenance work performed by the monitoring control terminal connected to the own device based on the exclusion information received from the parent device. The supervisory control system according to claim 3,
The exclusive information includes information on the work date and time of maintenance work, and information indicating the work content of the maintenance work,
The parent device can be duplicated even when the work date and time of maintenance work declared from other electronic devices including the own device to which the monitoring control terminal is connected is duplicated with other maintenance work A supervisory control system, characterized in that, if it is work content, a permission notice is transmitted to the electronic device including the self device that has declared it. In a monitoring control system in which a plurality of electronic devices are connected via a network, and two or more monitoring control terminals that perform maintenance work are connected to any of the electronic devices.
A management supervisory control device for managing the plurality of supervisory control terminals;
The supervisory control device for management is
A process for referring to a management schedule for managing a schedule of maintenance work when receiving a declaration of maintenance work from the monitoring control terminal;
If it overlaps with other maintenance work, a notification of disapproval is sent to the declared monitoring control terminal, and if it does not overlap with other maintenance work, a permission notice is sent to the declared monitoring control terminal and the maintenance work declared. And processing for sending exclusive information for performing exclusive processing to all the monitoring control terminals,
The supervisory control terminal
Processing for declaring maintenance work to the supervisory control device for management;
A monitoring control system that performs an exclusion process for maintenance work performed by the terminal based on the exclusion information received from the management supervisory control device. The supervisory control system according to claim 5, wherein
The exclusive information includes information on the work date and time of maintenance work, and information indicating the work content of the maintenance work,
The supervisory control device for management declares the monitoring when the work date and time of the maintenance work reported from the supervisory control terminal is a work content that can be duplicated even if it is duplicated with other maintenance work. A supervisory control system characterized by transmitting a permission notice to a control terminal. A plurality of electronic devices are connected by a network, and two or more monitoring control terminals that perform maintenance work are electronic devices used in a monitoring control system connected to any of the electronic devices,
When receiving a report from the monitoring control terminal, a management processing unit that refers to a management schedule for managing a schedule of maintenance work;
If it overlaps with other maintenance work, a notification of disapproval is sent to the declared monitoring control terminal, and if it does not overlap with other maintenance work, a permission notice is sent to the declared monitoring control terminal and the maintenance work declared. And an arbitration processing unit that transmits exclusive information for performing exclusive processing to all of the monitoring control terminals. The electronic device according to claim 7.
The exclusive information includes information on the work date and time of maintenance work, and information indicating the work content of the maintenance work,
The arbitration processing unit, even if the work date and time of the maintenance work reported from the monitoring control terminal is duplicated with other maintenance work, if the work content can be duplicated, the monitoring control terminal declared An electronic device characterized in that a permission notice is transmitted to the electronic device. A plurality of electronic devices are connected by a network, and two or more monitoring control terminals that perform maintenance work are electronic devices used in a monitoring control system connected to any of the electronic devices,
When an operation for reporting maintenance work is performed from the connected monitoring control terminal, a declaration processing unit that reports maintenance work to a parent device that manages maintenance work;
An electronic apparatus comprising: an exclusive processing unit that performs an exclusive process on maintenance work performed by the monitoring control terminal connected to the self apparatus based on the exclusive information received from the parent apparatus. The electronic device according to claim 9.
The exclusive information includes information on the work date and time of maintenance work, and information indicating the work content of the maintenance work,
The arbitration processing unit, even if the work date and time of the maintenance work reported from the monitoring control terminal is duplicated with other maintenance work, if the work content can be duplicated, the monitoring control terminal declared An electronic device characterized in that a permission notice is transmitted to the electronic device. A plurality of electronic devices are connected by a network, and two or more monitoring control terminals that perform maintenance work are monitoring control terminals used in a monitoring control system connected to any of the electronic devices,
A declaration processing unit that reports maintenance work to a parent device that manages maintenance work of the monitoring control terminal;
A monitoring control terminal comprising: an exclusive processing unit that receives exclusive information for performing exclusive processing on maintenance work from the parent device, and performs exclusive processing on maintenance work performed by the own terminal based on the exclusive information . A monitoring control method for performing maintenance work for a monitoring control system in which a plurality of electronic devices are connected via a network and two or more monitoring control terminals performing maintenance work are connected to any of the electronic devices,
One of the plurality of electronic devices operates as a parent device that manages maintenance work of the monitoring control terminal,
The parent device, when receiving a report from the monitoring control terminal, refers to a management schedule for managing the schedule of maintenance work, and if it overlaps with other maintenance work, notifies the monitoring control terminal that has reported If it does not overlap with other maintenance work, a permission notice is sent to the declared monitoring control terminal and exclusive information for performing exclusive processing on the declared maintenance work is sent to all the monitoring control terminals Processing and
The monitoring and control terminal performs processing for declaring maintenance work to the parent device and exclusive processing for maintenance work performed by the terminal based on the exclusion information received from the parent device. The monitoring control method according to claim 12,
The exclusive information includes information on the work date and time of maintenance work, and information indicating the work content of the maintenance work,
Even if the maintenance work date and time reported from the monitoring and control terminal is duplicated with other maintenance work, the parent device sends the information to the monitoring and control terminal that has declared it if the work content can be duplicated. A supervisory control method characterized by transmitting a permission notice. A monitoring control method in a monitoring control system in which a plurality of electronic devices are connected by a network and two or more monitoring control terminals that perform maintenance work are connected to any one of the electronic devices,
One of the plurality of electronic devices is set as a parent device that manages maintenance work of the monitoring control terminal,
The parent device is configured to refer to a management schedule for managing a maintenance work schedule when receiving a maintenance work report from another electronic device including the own device to which the monitoring control terminal is connected; If it overlaps with the work, a notice of disapproval is sent to the electronic device including the device itself that has been declared, and if it does not overlap with other maintenance work, a notice of permission is sent to the electronic device that has been declared and the maintenance work declared Processing to transmit exclusive information for performing exclusive processing to all the electronic devices including the own device,
The electronic device including the parent device has a process of declaring a maintenance operation to the parent device and an exclusive operation received from the parent device when an operation for declaring the maintenance operation is performed from the connected monitoring control terminal. A monitoring control method comprising: performing exclusion processing for maintenance work performed by the monitoring control terminal connected to the own apparatus based on information. The monitoring control method according to claim 14,
The exclusive information includes information on the work date and time of maintenance work and information indicating the work contents of the maintenance work, and the parent device reports from the other electronic devices including its own device to which the monitoring control terminal is connected. Even if the work date and time of the maintenance work that has been performed is duplicated with other maintenance work, if the work content can be duplicated, a permission notice is transmitted to the electronic device including the declared device. Monitoring control method. A monitoring control method in a monitoring control system in which a plurality of electronic devices are connected by a network and two or more monitoring control terminals that perform maintenance work are connected to any one of the electronic devices,
Providing a supervisory control device for managing the plurality of the supervisory control terminals;
The management supervisory control device refers to a process for referring to a management schedule for managing a maintenance work schedule when receiving a maintenance work declaration from the supervisory control terminal, and reports the monitoring when it overlaps with other maintenance work. Sending a non-permission notice to the control terminal, and if it does not overlap with other maintenance work, send a notice of permission to the monitoring control terminal that has declared and exclusive information for performing exclusive processing on the declared maintenance work Process to send to the supervisory control terminal,
The monitoring control terminal performs a process of declaring a maintenance work to the management monitoring control apparatus and an exclusive process for the maintenance work performed by the terminal based on the exclusive information received from the management monitoring control apparatus. Monitoring control method. The monitoring control method according to claim 16, wherein
The exclusive information includes maintenance work date and time information and information indicating the maintenance work content, and the management monitoring control device has a maintenance work report date and time reported from the monitoring control terminal. A monitoring control method characterized by transmitting a permission notice to the declared monitoring control terminal even if the work content overlaps with the maintenance work, if the work content can be duplicated.

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