JP4416592B2 - Supervisory control system and supervisory control data input / output program - Google Patents

Description

  The present invention relates to a monitoring control system and a monitoring control data input / output program used in the system. More specifically, the present invention relates to a system for monitoring and controlling power system equipment such as a generator, a distributed power source, a switch, and a load, and a monitoring control data input / output program used in the system.

  Since conventional power system monitoring and control systems are generally individually constructed by a single vendor, an access method for a device such as a power supply has a vendor-specific specification. On the other hand, in order to make it easy to handle various monitoring and control targets, software that implements the function to access monitoring and control objects using a scripting language as a programming language has been built to realize system flexibility. There is a technology (see Non-Patent Document 1). In addition, a technology has been proposed in which the power system monitoring and control system is separated into a basic unit and an application processing unit so that the application processing unit exchanges events only with the basic unit so as not to depend on the hardware configuration (patent) Reference 1).

“Active Q Adapter”: M. Suzuki et. Al. “Active Q Adapter for Programmable End-to-End Network Management Systems,” IEICE Trans. Commun. Vol. E82-B, No. 11, Nov. 1999, pp. 1761-1769. JP-A-8-328648

  However, due to the advancement of power deregulation and the emergence of new technologies such as distributed power sources, it is assumed that equipment from multiple manufacturers will be adopted, thereby separating the access function to the equipment from the supervisory control system and making it compatible with multiple vendors. Requests are expected to occur. On the other hand, the current level of processing must be maintained at the current level. In other words, the software that realizes the function to access the monitoring control target from the monitoring control system has a flexible structure that can cope with the hardware specifications that can be different for each individual device and the difference in input / output interface used for connection with the device, There is a need for real-time processing.

  On the other hand, in the technique of Non-Patent Document 1, by adopting a script language, it becomes possible to deal with the difference between devices and input / output interfaces relatively flexibly, but requires interpretation of the script at the time of execution. Therefore, the processing time required for data input / output increases, and it becomes difficult to ensure real-time processing. Further, in the technique of Patent Document 1, even though it can be realized that the application processing unit does not depend on the hardware configuration, the basic unit depends on the hardware configuration because it has an integral configuration. In other words, there is still no technology that can achieve both the flexibility (in other words, multi-vendor support) that can cope with the difference between the monitoring control target (mainly hardware) and its input / output interface and the real-time processing.

  In particular, there is a demand control system for one of the areas where the compatibility between multi-vendor compatibility and real-time performance should be realized. The demand area system is a next-generation power distribution system aimed at free access to distributed power sources. In demand area systems, information communication systems play an important role because supervisory control devices (such as supply and demand interfaces and loop controllers) that are distributed in a plane perform system monitoring control in cooperation with each other. In this information communication system, application of mobile agent technology is desired in order to integrate various monitoring control functions including real-time ones and realize flexible processing. In the demand area system, since the owner of the system equipment is not necessarily the operator of the power distribution system, it is considered that the multi-vendor correspondence of the access method to the equipment is necessary. That is, it is desirable to provide the mobile agent with a unified method related to acquisition and operation of monitoring control data such as system equipment in the monitoring control device.

  SUMMARY OF THE INVENTION An object of the present invention is to provide a monitoring control system and a monitoring control data input / output program that can achieve both flexibility corresponding to various types of monitoring control objects and real-time performance in monitoring control data input / output.

  In order to achieve such an object, the invention described in claim 1 is directed to a main monitoring control device that monitors and controls a monitoring control target using hardware equipment or software used to control the device as a monitoring control target, Connected to the monitoring control target via the input / output interface, provides data output from the connected monitoring control target to the main monitoring control device and transmits a command of the main monitoring control device to the monitoring control target A monitoring control system comprising a monitoring control device, a main monitoring control program that causes one or more computers to function as the main monitoring control device, and a monitoring control data input / output program that causes a computer to function as the monitoring control device The monitoring control data input / output program can communicate with the main monitoring control program. An information model layer configured to receive a request from the main supervisory control program and return a response corresponding to the request, and to issue a command that is configured to be communicable with the information model layer and that can be understood by the monitoring control target And an information input / output correspondence layer configured to be communicable with the object correspondence layer and the monitoring control object and performing input / output control corresponding to the input / output interface, and the information model The layer has an information model representing the state and operation of the monitoring control target by software, and a monitoring control command from the main monitoring control program sequentially selects the information model layer, the target corresponding layer, and the input / output corresponding layer. Monitoring data or control result information transmitted to and output from the monitoring control target via the input / output correspondence layer, the pair The corresponding correspondence layer and the information model layer are sequentially transmitted to the main supervisory control program, and the target correspondence layer is periodically or based on the state change in the supervisory control data input / output program, the input / output correspondence layer In response, the command for requesting monitoring data to be monitored and controlled is voluntarily issued, and monitoring data that is a response from the input / output corresponding layer to the request is stored, and the information model layer is Corresponding monitoring data among the stored monitoring data is provided in response to a monitoring data search request from the main monitoring control program.

  Further, the invention described in claim 2 is a main monitoring control device that monitors and controls the monitoring control target using hardware equipment or software used for controlling the equipment as a monitoring control target, and the monitoring control target and the input. A supervisory control device connected via an output interface, providing data output from the connected supervisory control target to the main supervisory control device and transmitting a command of the primary supervisory control device to the supervisory control target; In the monitoring control system, comprising: a main monitoring control program that causes one or more computers to function as the main monitoring control device; and a monitoring control data input / output program that causes a computer to function as the monitoring control device. The data input / output program is configured to be communicable with the main supervisory control program, and An information model layer that accepts a request from the visual control program and returns a response corresponding to the request; an object correspondence layer configured to communicate with the information model layer and issue a command that the monitoring control object can understand; The information model layer is configured to be communicable with the target correspondence layer and the monitoring control target, and has an input / output correspondence layer that performs input / output control corresponding to the input / output interface, and the information model layer includes the monitoring control An information model representing the state and operation of the object in software, and the supervisory control command from the main supervisory control program sequentially passes through the information model layer, the object correspondence layer, and the input / output correspondence layer, Monitoring data or control result information transmitted to the target and output from the monitoring control target is the input / output correspondence layer, the target correspondence layer, the information module. The target correspondence layer is registered in advance among the monitoring data spontaneously output from the monitoring control target notified from the input / output correspondence layer. Monitoring data matching the conditions is stored, and the information model layer provides corresponding monitoring data among the stored monitoring data in response to a monitoring data search request from the main monitoring control program. ing.

  The invention described in claim 5 is a main monitoring control device that monitors and controls the monitoring control target, using the hardware device or software used for controlling the device as the monitoring control target, and the monitoring control target and the input. A supervisory control device connected via an output interface, providing data output from the connected supervisory control target to the main supervisory control device and transmitting a command of the primary supervisory control device to the supervisory control target; In a monitoring control system comprising: a main monitoring control program that causes one or more computers to function as the main monitoring control device; and a monitoring control data input / output program that causes a computer to function as the monitoring control device. The supervisory control devices are connected to each other via a communication network and the main supervisory control program is The monitoring control data input / output program is configured to be communicable with the main monitoring control program, and is configured to communicate with the main monitoring control program. An information model layer that accepts the request and returns a response corresponding to the request, a target correspondence layer that is configured to be communicable with the information model layer and issues a command that can be understood by the monitoring control target, and the target correspondence layer And an input / output correspondence layer configured to be able to communicate with the monitoring control target and performing input / output control corresponding to the input / output interface, and the information model layer includes a state of the monitoring control target and An information model representing the operation in software, and the information model is a standard unified among at least a plurality of the monitoring control devices. The supervisory control command from the main supervisory control program is transmitted to the supervisory control target through the information model layer, the target correspondence layer, and the input / output correspondence layer sequentially, and is output from the supervisory control target. Monitoring data or control result information transmitted to the main monitoring control program sequentially through the input / output correspondence layer, the target correspondence layer, and the information model layer, and the mobile agent performs asynchronous control on the information model layer After issuing the command, it disappears without waiting for a response to the command or moves to another device for monitoring and control, and the control command from the mobile agent is the information model layer, the target corresponding layer, the input / output corresponding layer Are sequentially transmitted to the target device, and the target corresponding layer is transmitted from the monitoring control target notified from the input / output corresponding layer. The output control result information is saved, and the information model layer stores the control result stored in response to the acquisition request for control result information from another mobile agent or the mobile agent that has moved again. Information is provided.

  Therefore, according to the first, second, and fifth aspects of the invention, the supervisory control data input / output program has a three-layer structure of the information model layer, the target correspondence layer, and the input / output correspondence layer. Communication for monitoring control can be performed with respect to the information model layer without being aware of differences between individual monitoring control targets and input / output interfaces. Therefore, it is possible to provide a unified interface for accessing the monitoring control target for the main monitoring control program. Thereby, the configuration of the main monitoring control program can be simplified, and the construction of the main monitoring control program becomes easy. In addition, by sparse the connection of each layer in the above three-layer structure (the degree to which adjacent layers need to be changed when a certain layer is changed), it can be used for a specific monitoring control target or a specific input / output interface. The software module can be replaced with a software module corresponding to another monitoring control target or another input / output interface without affecting other layers (in particular, the information model layer). Therefore, it is possible to flexibly modify program parts based on differences in individual monitoring control targets and differences in input / output interfaces, thereby facilitating program construction. As a result, it is possible to respond to requests for multi-vendor support.

  In addition, as in the first aspect of the present invention, the monitoring control data input / output program autonomously acquires and stores monitoring data, so that the main monitoring control program can promptly update the latest monitoring only by making an inquiry to the information model layer. Data can be acquired. Since there is no time for inquiring from the main monitoring control program to the monitoring control target, the waiting time until the main monitoring control program acquires monitoring data can be shortened, and the request for real-time processing can be satisfied.

  Furthermore, in the invention described in claim 2, the main supervisory control program only inquires to the information model layer by monitoring the event in which the supervisory control data input / output program is registered and autonomously acquiring and storing the supervisory data. For example, monitoring data relating to alarms requiring special attention can be quickly acquired. In this case as well, there is no time for inquiring from the main monitoring control program to the monitoring control target, so the waiting time until the main monitoring control program acquires monitoring data can be reduced, and the real-time processing requirement can be satisfied. .

  Furthermore, according to the invention described in claim 5, the main supervisory control program can start another process immediately after issuing a control command to the information model layer. Therefore, the waiting time until the main supervisory control program receives a response to the control command issued by itself can be eliminated. As a result, the main supervisory control program can efficiently proceed with the process, and thus can contribute to speeding up the process of the entire supervisory control system, and can contribute to a request for real-time processing.

  According to a third aspect of the present invention, in the monitoring control system according to the first or second aspect, a plurality of the monitoring control devices are connected to each other via a communication network, and the main monitoring control program is It is assumed to be configured to have one or a plurality of mobile agents that move between the monitoring control devices. By constructing the main supervisory control program based on the mobile agent technology, it is possible to realize a variety of processes with limited computing resources and to be flexible with respect to changes in the system configuration.

  According to a fourth aspect of the present invention, in the supervisory control system according to the third aspect, the information model is configured in accordance with a rule unified among at least the plurality of supervisory control devices. In this case, it is possible to provide a unified interface for accessing the monitoring control target for the mobile agent moving between a plurality of monitoring control devices, and the monitoring control target for the mobile agent without being biased to a specific vendor The access interface to can be unified.

  According to a sixth aspect of the present invention, in the supervisory control system according to the fifth aspect, each of the information model layer, the target corresponding layer, and the input / output corresponding layer is configured by an object that is a program part, and the information The model layer further includes an information model object that functions as the information model, an operation item object that manages a specific operation item, and an operation item value object that manages specific control result information. The operation item object that manages the operation item can be searched, and the operation item object can search the operation item value object that manages the specific control result information. Asynchronous control commands for the information model object A target driving object which is translated into an understandable command and issued, and the input / output correspondence layer transmits the command issued by the target driving object to the monitoring control target in a data format corresponding to the input / output interface And a data exchange object that passes control result information output as a response from the monitoring control object to the target drive object, and the target drive object receives a control result from the data exchange object as a response to the command issued by itself. When the information is received, an operation item value object for managing the control result information is newly generated, and the operation item value object information generated for the operation item object for managing the operation item corresponding to the control is displayed. The operation item object is newly added The generated operation item value object can be searched, and the information model notifies the mobile agent of the corresponding operation item object in response to an acquisition request for control result information from the mobile agent to the information model layer. The operation item object notifies the mobile agent of the corresponding operation item value object or provides the mobile agent with the control result information acquired from the corresponding operation item value object.

  According to a seventh aspect of the present invention, in the supervisory control system according to any one of the first to sixth aspects, each of the information model layer, the target corresponding layer, and the input / output corresponding layer is a program component. The information model layer includes an information model object that functions as the information model, a monitoring item object that manages specific monitoring items, and a monitoring item value object that manages specific monitoring data. The information model object can search for a monitoring item object that manages a specific monitoring item, and the monitoring item object can search for a monitoring item value object that manages specific monitoring data. The input / output on a periodic basis or based on a state change in the supervisory control data input / output program A target driving object that voluntarily issues a command requesting monitoring data to be monitored and controlled to the response layer, and the input / output correspondence layer sends the command issued by the target driving object to the input / output interface. A data exchange object that transmits the monitoring data output as a response from the monitoring control target to the target driving object and transmits the monitoring data to the target driving object in a corresponding data format. When monitoring data is received from the data exchange object as a response to the issued command, a monitoring item value object for managing the monitoring data is newly generated and a monitoring item object for managing the monitoring item corresponding to the monitoring data is generated. , Information on the generated monitoring item value object The monitoring item object can be searched for the newly generated monitoring item value object, and in response to a monitoring data search request for the information model layer from the main monitoring control program, the information model object The corresponding monitoring item object is notified to the main monitoring control program, the monitoring item object notifies the corresponding monitoring item value object to the main monitoring control program, or the monitoring data acquired from the corresponding monitoring item value object Is provided to the main supervisory control program.

  The invention according to claim 8 is the monitoring control system according to any one of claims 1 to 7, wherein each of the information model layer, the target corresponding layer, and the input / output corresponding layer is a program component. The information model layer includes an information model object that functions as the information model, a monitoring item object that manages specific monitoring items, and a monitoring item value object that manages specific monitoring data. The information model object can search for a monitoring item object that manages a specific monitoring item, and the monitoring item object can search for a monitoring item value object that manages specific monitoring data. Receiving the monitoring data spontaneously output from the monitoring control target from the input / output correspondence layer. When there is monitoring data that matches a pre-registered condition among the received monitoring data, the event receiving object newly generates a monitoring item value object for managing the monitoring data, The information of the generated monitoring item value object is added to the monitoring item object that manages the monitoring item corresponding to the monitoring data, and the monitoring item value object in which the monitoring item object is newly generated is searched. In response to a monitoring data search request for the information model layer from the main monitoring control program, the information model notifies the corresponding monitoring item object to the main monitoring control program, and the monitoring item object corresponds. The monitoring item value object is assigned to the main monitoring control program. And so as to provide monitoring data acquired from the notification to or relevant the monitored item value object to the main monitor and control program.

  Therefore, by constructing the monitoring control data input / output program based on the object-oriented technology, the information model layer / target correspondence layer / input / output correspondence layer can be connected to each other. The degree of necessity) can be sparse, and an object corresponding to a specific monitoring control target or a specific input / output interface is changed to another monitoring control target or an object corresponding to another input / output interface to another layer. It is possible to replace without affecting (especially the information model layer). Therefore, it is possible to flexibly modify program parts based on differences in individual monitoring control targets and differences in input / output interfaces, thereby facilitating program construction. As a result, it is possible to respond to requests for multi-vendor support.

  Also, if a monitoring item or an operation item is defined in the information model object, the monitoring item or the operation item is fixed, and there is a possibility that the monitoring item or the operation item will be excessive or insufficient later. A program that can flexibly respond to the addition and deletion of monitoring items and operation items by separating the monitoring items and operation items from the information model object and defining the relationship between the information model object and the monitoring item object or operation item object. It becomes composition. In addition, data about each monitoring item and operation item generally increases with time. By separating monitoring data and control result information from monitoring item objects and operation item objects and defining them as associations between monitoring item objects and monitoring item value objects and associations between operation item objects and operation item value objects, monitoring data And the control result information management method (for example, deleting unnecessary data) can be set flexibly.

  The invention according to claim 9 is the supervisory control system according to any one of claims 1 to 8, wherein the main supervisory control program issues a supervisory control command that requires synchronization to the information model layer, It keeps waiting until the response of the command is received. In this case, since the main supervisory control program that issued the monitoring data acquisition or control command can reliably receive the response, it is possible to reliably acquire the monitoring data in an emergency, forcible termination operation to be executed reliably, etc. Also, it can cope with a case where high reliability is required.

  According to a tenth aspect of the present invention, in the monitoring control system according to any one of the first to ninth aspects, the monitoring control target is a power system device. In this case, the present invention can be applied to a power system monitoring and control system in which a demand for real-time processing is severe and multi-vendor compatibility is required.

  A monitoring control data input / output program according to claim 11 causes a computer to function as the monitoring control device of the monitoring control system according to any one of claims 1 to 10. By using this supervisory control data input / output program, for example, an existing supervisory control system can be made to function as a supervisory control system according to the present invention having the above-described effects.

  According to a twelfth aspect of the present invention, the supervisory control data input / output program according to the eleventh aspect is created in a compiler language. In this case, as compared with the case where an interpreted language or a script language is used as a programming language, the processing speed at the time of program execution can be increased, and the requirement for real-time processing can be more satisfied.

  Thus, according to the first, second, and fifth aspects of the invention, since the supervisory control data input / output program has a three-layer structure of the information model layer, the target correspondence layer, and the input / output correspondence layer, the main supervisory control program is Communication for monitoring control can be performed with respect to the information model layer without being aware of differences between individual monitoring control targets and input / output interfaces. Therefore, it is possible to provide a unified interface for accessing the monitoring control target for the main monitoring control program. Thereby, the configuration of the main monitoring control program can be simplified, and the construction of the main monitoring control program becomes easy. In addition, by sparse the connection of each layer in the above three-layer structure (the degree to which adjacent layers need to be changed when a certain layer is changed), it can be used for a specific monitoring control target or a specific input / output interface. The software module can be replaced with a software module corresponding to another monitoring control target or another input / output interface without affecting other layers (in particular, the information model layer). Therefore, it is possible to flexibly modify program parts based on differences in individual monitoring control targets and differences in input / output interfaces, thereby facilitating program construction. As a result, it is possible to respond to requests for multi-vendor support.

  In addition, as in the first aspect of the present invention, the monitoring control data input / output program autonomously acquires and stores monitoring data, so that the main monitoring control program can promptly update the latest monitoring only by making an inquiry to the information model layer. Data can be acquired. Since there is no time for inquiring from the main monitoring control program to the monitoring control target, the waiting time until the main monitoring control program acquires monitoring data can be shortened, and the request for real-time processing can be satisfied.

  Furthermore, in the invention described in claim 2, the main supervisory control program only inquires to the information model layer by monitoring the event in which the supervisory control data input / output program is registered and autonomously acquiring and storing the supervisory data. For example, monitoring data relating to alarms requiring special attention can be quickly acquired. In this case as well, there is no time for inquiring from the main monitoring control program to the monitoring control target, so the waiting time until the main monitoring control program acquires monitoring data can be reduced, and the real-time processing requirement can be satisfied. .

  Furthermore, according to the invention described in claim 5, the main supervisory control program can start another process immediately after issuing a control command to the information model layer. Therefore, the waiting time until the main supervisory control program receives a response to the control command issued by itself can be eliminated. As a result, the main supervisory control program can efficiently proceed with the process, and thus can contribute to speeding up the process of the entire supervisory control system, and can contribute to a request for real-time processing.

  Furthermore, according to the invention described in claim 3, by constructing a main monitoring control program based on the mobile agent technology, it is possible to realize various processes using limited computing resources and to flexibly change the system configuration. can do.

  Furthermore, according to the invention described in claim 4, by configuring the information model according to a rule unified among at least a plurality of monitoring control devices, a mobile agent moving between the plurality of monitoring control devices is provided. It is possible to provide a unified interface for accessing the monitoring control target, and to unify the access interface to the monitoring control target for the mobile agent without biasing to a specific vendor.

  Further, according to the inventions of claims 6, 7, and 8, the monitoring control data input / output program is constructed based on the object-oriented technology, so that the information model layer / target correspondence layer / input / output correspondence layer is connected to each other. (The degree to which the change of the adjacent layer is required when a certain layer is changed) can be made sparse, and an object corresponding to a specific monitoring control target or a specific input / output interface can be changed to another monitoring control target or An object corresponding to another input / output interface can be replaced without affecting other layers (in particular, the information model layer). Therefore, it is possible to flexibly modify program parts based on differences in individual monitoring control targets and differences in input / output interfaces, thereby facilitating program construction. As a result, it is possible to respond to requests for multi-vendor support.

  Furthermore, by separating monitoring items and operation items from information model objects and defining them as associations between information model objects and monitoring item objects or operation item objects, it is possible to flexibly add or delete monitoring items and operation items. It becomes a program configuration that can. In addition, data about each monitoring item and operation item generally increases with time, but monitoring data and control result information are separated from the monitoring item object and the operation item object, and the monitoring item object and the monitoring item value object are separated from each other. By defining the relationship between the items and the relationship between the operation item object and the operation item value object, the program configuration can flexibly set the monitoring data and control result information management method (for example, deleting unnecessary data).

  Furthermore, according to the invention described in claim 9, since the main supervisory control program that issued the supervisory data acquisition or control command can surely receive the response, the supervisory supervisory acquisition of supervisory data in an emergency, It is also possible to cope with a case where high reliability is required such as a forced termination operation that should be executed reliably.

  Furthermore, according to the invention described in claim 10, since the monitoring control target is a power system device, the monitoring control system for the power system, which requires strict real-time processing and is required to support multi-vendors, is provided. The invention can be applied.

  Furthermore, by using the supervisory control data input / output program according to the eleventh aspect, for example, an existing supervisory control system can be made to function as a supervisory control system according to the present invention that exhibits the above-described effects.

  Furthermore, by creating a compiler-type language as in the supervisory control data input / output program according to claim 12, the processing speed at the time of program execution is increased compared to the case of using an interpreter-type language or a script language. It is possible to satisfy the requirement of real-time processing.

  Hereinafter, the configuration of the present invention will be described in detail based on embodiments shown in the drawings.

  1 to 8 show an embodiment of a monitoring control system and a monitoring control data input / output program according to the present invention. The monitoring control system 1 includes a hardware monitoring device or software used for controlling the device as a monitoring control target 2, a main monitoring control device 3 that monitors and controls the monitoring control target 2, and a monitoring control target 2. Monitoring control that is connected via the output interface 4 and provides the data output from the connected monitoring control target 2 to the main monitoring control apparatus 3 and transmits the command of the main monitoring control apparatus 3 to the monitoring control target 2 Device 5, a main monitoring control program 6 that causes one or more computers to function as the main monitoring control device 3, and a monitoring control data input / output program 7 that causes the computer to function as the monitoring control device 5. .

  For example, the monitoring control target 2 of this embodiment is a power system device (hardware). There are a plurality of types of power system devices such as a generator, a distributed power source, a switch, and a load. Further, for example, the input / output interface 4 of the present embodiment is an input / output device that connects various power system devices and the monitoring control device 5. There are a plurality of types of input / output devices depending on the type of power system device, such as a serial port, a parallel port, and Ethernet (registered trademark).

  In the present embodiment, as shown in FIG. 2, there are a plurality of monitoring control devices 5, and the plurality of monitoring control devices 5 are connected to each other via a communication network (network) 8. The communication network 8 is generally a wired communication network, but part or all of the communication network 8 may be a wireless communication network. Further, the Internet may be used as the communication network 8.

  For example, in the present embodiment, an example in which the present invention is applied to a monitoring control system for a demand place system will be described. Demand area system is a next generation power distribution system aiming at free access of distributed power sources (Reference: Hirobayashi Kobayashi, Toshiya Nanahara: “Energy Management in the New Century (15) Power System in the 21st Century-Demand Geosystem- ", General Electric Magazine OHM, Vol. 89, No. 3, Ohmsha, pp. 99-103 (2002-3)). In the demand area system, since the owner of the power system equipment is not necessarily the operator of the power distribution system, it is considered that the multi-vendor correspondence of the access method to the power system equipment is necessary. In view of this, the monitoring control apparatus 5 provides a unified method for obtaining and operating monitoring control data of the power system equipment that is the monitoring control target 2 for the main monitoring control program 6.

  The main supervisory control program (system supervisory control program) 6 transmits supervisory control information between a plurality of supervisory control devices 5 and 5 and is responsible for cooperation between a plurality of various power system devices, as well as accident section separation. Responsible for supervisory control processing centering on such systems. The main supervisory control program 6 is preferably constructed based on mobile agent technology from the viewpoint of realizing various processes in limited computing resources and ensuring flexibility with respect to changes in system configuration. Therefore, for example, the main monitoring control program 6 of the present embodiment is configured to include one or a plurality of mobile agents 60 that move between the plurality of monitoring control devices 5. In this case, the conventional technology that builds the system monitoring control program based on the mobile agent technology (Reference: Tetsuo Otani: “Configuration and QoS control method of mobile agent for next generation distribution system monitoring control”, IEICE Electronics, Information and Systems Departmental Journal, Vol. 124, No. 3, pp. 921-928 (2004-3)) may be used. Moreover, it is preferable to use Java (registered trademark) that can easily realize the mobile agent 60 as a programming language used for constructing the main monitoring control program 6.

  The monitoring control data input / output program 7 is configured to be communicable with the main monitoring control program 6 (in this embodiment, the mobile agent 60), and receives information from the main monitoring control program 6 and returns a response corresponding to the request. It is configured to be communicable with the model layer 7A, the information corresponding to the information model layer 7A, the target corresponding layer 7B that issues a command that can be understood by the monitoring control target 2, and the target corresponding layer 7B and the monitoring control target 2. It has a three-layer structure with an input / output corresponding layer 7C that performs input / output control corresponding to the input / output interface 4.

  The supervisory control command from the main supervisory control program 6 is transmitted to the supervisory control target 2 through the information model layer 7A, the target correspondence layer 7B, and the input / output correspondence layer 7C sequentially. The monitoring data or control result information output from the monitoring control target 2 is transmitted to the main monitoring control program 6 via the input / output correspondence layer 7C, the target correspondence layer 7B, and the information model layer 7A sequentially.

  Each of the information model layer 7A, the target correspondence layer 7B, and the input / output correspondence layer 7C is configured by a program component called an object. Each object has data (also referred to as a property) representing its own state and a program (also referred to as a method) indicating a procedure for operating the object. Assuming that the main supervisory control program 6 side is higher and the supervisory control target 2 side is lower, the object of each layer of the information model layer 7A, target correspondence layer 7B, and input / output correspondence layer 7C is the method of the object of the lower layer one step below. call. Other objects to be called by each object are determined in advance.

  The information model layer 7 </ b> A is configured by an object representing the operation mode of the monitoring control target 2 and logging information, and functions as an interface with the main monitoring control program 6. The objects belonging to the information model layer 7A do not depend on any of the specific device product (individual power system devices in this embodiment) and the input / output interface 4 that are the monitoring control target 2.

  The target corresponding layer 7B is configured by an object having a command and control logic for specifically operating the monitoring control target 2. An object belonging to the target corresponding layer 7B corresponds to a specific device product (individual power system device in this embodiment) that is the monitoring control target 2, and does not depend on the input / output interface 4.

  The input / output correspondence layer 7C is configured by an object that performs input / output control corresponding to the input / output interface 4 (for example, a serial port or a parallel port) to which the power system device that is the monitoring control target 2 is connected. Responsible for communication with. Objects belonging to the input / output correspondence layer 7C correspond to specific input / output interfaces 4 and do not depend on individual power system devices.

  The main supervisory control program 6 calls the object of the information model layer 7A and receives data from the object of the information model layer 7A, but the object of the target correspondence layer 7B, the object of the input / output correspondence layer 7C, and the supervisory control target 2 Does not communicate directly. The object of the information model layer 7A calls the object of the target correspondence layer 7B and receives data from the object of the target correspondence layer 7B, but does not directly communicate with the object of the input / output correspondence layer 7C and the monitoring control target 2. . The object in the target correspondence layer 7B calls the object in the input / output correspondence layer 7C and receives data from the object in the input / output correspondence layer 7C, but does not communicate directly with the main monitoring control program 6 and the monitoring control target 2. . Further, the object of the input / output correspondence layer 7C performs data transmission / reception with the monitoring control target 2, but does not directly communicate with the object of the main monitoring control program 6 and the information model layer 7A.

  As a programming language used for constructing the monitoring control data input / output program 7, a type capable of object-oriented analysis design (for example, Java (registered trademark)) is suitable. On the other hand, it is desirable to use a compiler-type language from the viewpoint of speeding up the processing. Therefore, in this embodiment, the monitoring control data input / output program 7 is constructed using a Java (registered trademark) and a JIT (Just-In-Time) compiler.

  The information model layer 7A has an object based on an information model in which the monitoring control target 2 is modeled as software. The information model represents the state and operation of the monitoring control target 2 (in this embodiment, the power system device) as software. The main monitoring behaves like the monitoring control target 2 and communicates with the information model. From the control program 6 (system monitoring control program), it appears as if the monitoring control target 2 is actually operated. This information model is assumed to be configured at least according to a rule that is uniform among the plurality of monitoring control devices 5 in the monitoring control system 1. In this case, a unified interface for accessing the monitoring control target 2 can be provided to the mobile agent 60 that moves between the plurality of monitoring control devices 5. In particular, if an information model established as an international standard is used, the access interface to the monitoring control target 2 for the mobile agent 60 can be unified without biasing to a specific vendor.

  For example, in this embodiment, an information model is designed based on a CIM (Common Information Model) standardized at the International Electrotechnical Commission (IEC). The CIM is used by a remote monitoring and control system (SCADA) and an energy management system (EMS) such as automatic power supply and supply / demand control to exchange information with each other at a control station. Is an information model. The reason for adopting CIM is as follows. (1) Generally, since modeling of equipment involves a huge amount of work, it is desirable to make the most of existing designs. Since CIM is based on object-oriented technology, the amount of work when redesigning for a demand area system is lighter than when designing a new one. (2) Of the monitoring control of the demand area system, for the main monitoring control program 6 (system monitoring control program), the power generation amount setting of the distributed power source, the fault section separation due to the occurrence of the ground fault, the fault section It is similar to the role played by the control station in the backbone system, such as voltage control and frequency control in the peripheral section. (3) In IEC61968 which is a standard related to the power distribution management system, a message used for intersystem cooperation is defined based on CIM. Therefore, in the future, when conforming to IEC61968, it is considered that the transition can be made relatively easily.

  The object of the information model layer 7A and the object of the target correspondence layer 7B constitute a commission relationship as shown in FIG. 3, for example. From the object of the information model layer 7A, it is possible to use the object of the target correspondence layer 7B without being aware of the difference in the objects of the target correspondence layer 7B corresponding to the individual power system devices. For this purpose, an abstract class independent from the specific processing contents of the object of the target correspondence layer 7B is prepared, and specific processing is performed with a concrete class (class that is actually instantiated) derived from the abstract class. Do. Reference numeral 10 in FIG. 3 indicates an abstract class, and reference numeral 11 in FIG. 3 indicates a concrete class. Also, the broken line indicated by reference numeral 51 indicates the range of the object class located on the information model layer 7A, and the broken line indicated by reference numeral 52 indicates the range of the object class positioned on the target correspondence layer 7B.

  For example, as shown in FIG. 3, a generator class 9 is prepared as an object class (information model) located in the information model layer 7A. Further, a generator drive class 10 is prepared as an abstract class located in the target correspondence layer 7B, and a fuel cell drive class A (reference numeral 11a) and a fuel cell drive class B (reference numeral 11b) are provided as concrete classes 11 located in the target correspondence layer 7B. ), Wind power generation drive class A (reference numeral 11c) is prepared. The generator class 9 provides methods for performing operations such as interconnection, disconnection, and increase / decrease in output, but only activates the corresponding method of the generator drive class 10 inside. The generator drive class 10 is an abstract class, and specific processing is defined in a concrete class 11 (11a to 11c) such as a fuel cell drive class A. If there is no corresponding process such as increase / decrease in the output of the wind power generator, it is possible not to define the process in those methods. The concrete classes 11 such as the fuel cell drive class A (symbol 11a), the fuel cell drive class B (symbol 11b), and the wind power generation drive class A (symbol 11c) exist as the generator drive class 10 from the generator class 9. Therefore, the generator class 9 can access the generator main body that is the monitoring control target 2 by using a common method without having to be aware of the specific processing difference. The concrete class 11 of the target correspondence layer 7B is prepared corresponding to the number and type of the monitoring control target 2 (power system device in this embodiment) connected to the monitoring control device 5, for example.

  The mechanism between the object of the information model layer 7A and the object of the target correspondence layer 7B described above is also set between the object of the target correspondence layer 7B and the object of the input / output correspondence layer 7C. That is, the object of the target correspondence layer 7B only activates the corresponding method of the abstract class of the input / output correspondence layer 7C, and specific processing is performed in the concrete class of the input / output correspondence layer 7C. Therefore, the object of the target correspondence layer 7B can be processed without being aware of the specific difference of the input / output interface 4. The concrete class of the input / output correspondence layer 7C is prepared corresponding to the number and type of the input / output interfaces 4 to which the monitoring control target 2 (power system device in this embodiment) is connected in the monitoring control device 5, for example. Is done.

  When the mobile agent 60 accesses the power system device as the monitoring control target 2 or the data output from the power system device, the method prepared by the information model object is always used. In the case of FIG. 3, the mobile agent 60 calls a method for interconnection and disconnection provided by the generator class 9. As a result, regardless of which monitoring control device 5 the mobile agent 60 moves to, it is possible to access the power system device as the monitoring control target 2 and the output data from the power system device by the same method.

  As a method for the monitoring control data input / output program 7 to acquire monitoring data of the monitoring control object 2 provided to the main monitoring control program 6 (mobile agent 60 in this embodiment) from the monitoring control object 2, for example, this embodiment Then, the following three methods are prepared. That is, (1) an autonomous monitoring method in which the monitoring control data input / output program 7 autonomously acquires monitoring data, and (2) the monitoring control data input / output program 7 acquires monitoring data when a scheduled event occurs. There are three methods: an event monitoring method, and (3) an on-demand monitoring method in which the monitoring control data input / output program 7 acquires monitoring data based on a request from the main monitoring control program 6.

  Furthermore, as a method for the monitoring control data input / output program 7 to operate the monitoring control target 2 based on a request from the main monitoring control program 6 (in this embodiment, the mobile agent 60), for example, in this embodiment, the following two methods are used. prepare. That is, (1) a synchronous control method in which the main supervisory control program 6 that has issued a control request waits for a response from the supervisory control data input / output program 7, and (2) the primary supervisory control program 6 that has issued the control request has a supervisory control data. There are two methods: an asynchronous control method that does not wait for a response from the input / output program 7.

  Methods corresponding to the three types of monitoring methods and the two types of control methods are prepared for objects that function as information models. The mobile agent 60 can use an appropriate monitoring method or control method by calling a method suitable for its own processing on the information model. Note that which monitoring method or control method the mobile agent 60 selects may be specified statically in a program in the mobile agent 60, or according to the situation of the place using a conditional expression or the like. Alternatively, the mobile agent 60 may be able to dynamically select the optimum monitoring method or control method.

  Hereinafter, each monitoring method and control method will be described in detail.

  First, the autonomous monitoring method will be described. The autonomous monitoring system refers to a system in which the monitoring data of the monitoring control object 2 is acquired and stored autonomously in the monitoring control data input / output program 7, and the mobile agent 60 refers to only the stored monitoring data. In this case, the target corresponding layer 7B voluntarily issues a command for requesting the monitoring data of the monitoring control target 2 to the input / output corresponding layer 7C periodically or based on the state change in the monitoring control data input / output program 7. Announce. The target correspondence layer 7B stores monitoring data that is a response from the input / output correspondence layer 7C to the command issued spontaneously. On the other hand, the information model layer 7A provides corresponding monitoring data among the stored monitoring data in response to the monitoring data search request from the mobile agent 60.

  The autonomous monitoring method is specifically realized by, for example, a group of objects described below.

  The information model layer 7A includes an object functioning as an information model of the monitoring control target 2 (referred to as an information model object 12), a monitoring item object 13 that manages specific monitoring items, and a monitoring item that manages specific monitoring data. It has a value object 14.

  The monitoring item object 13 manages information related to the monitoring item and manages a set of monitoring item value objects 14. For example, as many monitoring item objects 13 as the number of monitoring items are prepared. The monitoring item value object 14 manages monitoring data (measured values) at a certain point in time, and the method of handling is specified as a method. If a monitoring item is defined in the information model object 12, the monitoring item is fixed, and there is a possibility that the monitoring item will be excessive or deficient later. A program configuration that can flexibly cope with addition or deletion of monitoring items by separating monitoring items from the information model object 12 and defining the relationship between the information model object 12 and the monitoring item object 13 as in this embodiment It becomes. In addition, monitoring data (measured values) for each monitoring item generally increases with time. As in the present embodiment, the monitoring data is separated from the monitoring item object 13 and defined as a relationship between the monitoring item object 13 and the monitoring item value object 14, thereby managing the monitoring data (for example, deleting unnecessary data) The program configuration can be set flexibly.

  The information model object 12 can search for a monitoring item object 13 that manages a specific monitoring item. For this purpose, the information model object 12 has, for example, a data structure (for example, an array) in which “a character string specifying a monitoring item” and “a name of a monitoring item object” are associated with each other. The monitoring item object 13 can search for a monitoring item value object 14 for managing specific monitoring data. For this purpose, the monitoring item object 13 has, for example, a data structure (for example, an array) in which “monitoring data acquisition time” and “name of monitoring item value object” are associated with each other.

  The target corresponding layer 7B is a target that voluntarily issues a command for requesting the monitoring data of the monitoring control target 2 to the input / output corresponding layer 7C periodically or based on a state change in the monitoring control data input / output program 7. It has a driving object 15. When the target driving object 15 receives monitoring data from the input / output correspondence layer 7C as a response to a command issued by itself, the target driving object 15 newly generates a monitoring item value object 14 for managing the monitoring data and The information of the generated monitoring item value object 14 is added to the monitoring item object 13 that manages the monitoring item corresponding to the data, and the monitoring item object 13 is searched for the newly generated monitoring item value object 14. It can be so.

  The input / output correspondence layer 7C transmits a command issued by the target drive object 15 to the monitoring control target 2 in a data format corresponding to the input / output interface 4, and targets monitoring data output as a response from the monitoring control target 2. It has a data exchange object 16 that is passed to the driving object 15. If necessary, the data exchange object 16 converts the monitoring data received from the monitoring control target 2 into a data format that can be handled by the target driving object 15.

  A processing procedure of the autonomous monitoring system executed by the group of objects described above will be described with reference to FIG. In addition, the rectangle shown with the double solid line in FIGS. 4-8 shows the object (program component) which processes autonomously, and the rectangle shown with a single solid line is processed when a method is called from another object. Indicates the object that performs Moreover, the rectangle shown with a dashed-two dotted line shows hardware.

  The target drive object 15 monitors the time and the state change in the monitoring control data input / output program 7, and when the planned time is reached or the planned state change occurs, the target drive object 15 The monitoring data of the monitoring control target 2 is requested (B-101). At the time of the request, a command necessary for acquiring monitoring data from the monitoring control target 2 is sent simultaneously. The data exchange object 16 communicates with the monitoring control target 2 in a format corresponding to the input / output interface 4 and transmits a command passed from the target driving object 15 to the monitoring control target 2. Thereafter, when the data exchange object 16 receives the corresponding monitoring data from the monitoring control target 2 via the input / output interface 4, it sends a character string representing the received monitoring data to the target driving object 15 (B-102). ). The processes of B-101 and B-102 are performed synchronously. That is, the target drive object 15 continues to wait until a response is returned from the data exchange object 16.

  The target driving object 15 that has received the character string representing the monitoring data generates the monitoring item value object 14 after analyzing the contents thereof, and generates the monitoring item value object obtained by the analysis (monitoring data). 14 (B-103). Note that the class of the monitoring item value object 14 (a model of an object in which only a method is defined and data is not defined) is prepared in advance. The target driving object 15 calls a class of the monitoring item value object 14 prepared in advance, gives the obtained monitoring data to the class, generates a method and data pair (that is, an object) (that is, creates an instance), and The generated monitoring item value object 14 is stored with a unique object name according to a certain rule.

  The target drive object 15 that generated the monitoring item value object 14 associates the generated monitoring item value object 14 with the corresponding monitoring item object 13 (B-104). Specifically, the monitoring item object 13 that manages the monitoring item corresponding to the monitoring data is specified, and the “monitoring data acquisition time” and the “name of the monitoring item value object” owned by the monitoring item object 13 are associated with each other. The name of the generated monitoring item value object 14 and the monitoring data acquisition time managed by the monitoring item value object 14 are added to the data structure (for example, array).

  On the other hand, when acquiring monitoring data targeted by the mobile agent 60 (main monitoring control program 6), first, a monitoring data search request is issued to the information model object 12 to be monitored (A-101). The search request includes, for example, a character string that specifies a monitoring item. On the other hand, the information model object 12 refers to a data structure (for example, an array) associated with “a character string that identifies a monitoring item” and “a name of the monitoring item object” that is owned by the information model object 12. The monitoring item object 13 that manages the monitoring item to be identified is specified, and the name of the specified monitoring item object 13 is notified to the mobile agent 60 (A-102).

  Next, the mobile agent 60 issues a monitoring data acquisition request to the monitoring item object 13 notified from the information model object 12 (A-103). The acquisition request includes, for example, a time or a threshold value. On the other hand, the monitoring item object 13 refers to a data structure (for example, an array) associated with “monitoring data acquisition time” and “name of the monitoring item value object” owned by itself. The “data acquisition time” coincides with the time or threshold value presented from the mobile agent 60, or the “monitoring data acquisition time” is after (or before) or above (or below) the time value presented from the mobile agent 60. The monitoring item value object 14 is specified. Different methods corresponding to the search conditions of “match with presentation time”, “match with presentation threshold”, “after presentation time”, “before presentation time”, “above threshold”, “below threshold” are prepared in the monitoring item object 13. Thus, the mobile agent 60 can use an appropriate search condition by calling a method suitable for its own processing on the monitoring item object 13. It is also possible to prepare a search condition method such as “latest measurement data”. The monitoring item object 13 acquires monitoring data from the monitoring item value object 14 that manages the monitoring data applicable to the request from the mobile agent 60 (A-104), and passes the monitoring data to the mobile agent 60 (A-105). ). The monitoring item object 13 notifies the mobile agent 60 of the name of the monitoring item value object 14 that manages the monitoring data applicable to the request from the mobile agent 60, and the mobile agent 60 directly accesses the monitoring item value object 14 for monitoring. You may make it acquire data.

  The processing of A-101 to A-105 and the processing of B-101 to B-104 described above are different processing flows and can be processed in parallel.

  Next, the event monitoring method will be described. In the event monitoring method, when the monitoring control target 2 voluntarily outputs the monitoring data continuously in some cases, the monitoring control data input / output program 7 always outputs the monitoring data output from the monitoring control target 2. This refers to a method of continuing to receive and storing only the monitoring data that matches the pre-registered conditions among the received monitoring data. In this case, the target correspondence layer 7B stores monitoring data that matches the pre-registered conditions among the monitoring data spontaneously output from the monitoring control target 2 notified from the input / output correspondence layer 7C. In response to the monitoring data search request from the mobile agent 60, the model layer 7A provides corresponding monitoring data among the stored monitoring data.

  The event monitoring method is specifically realized by, for example, a group of objects described below.

  The information model layer 7A has an information model object 12 as a monitoring control target 2 information model, a monitoring item object 13 for managing specific monitoring items, and a monitoring item value object 14 for managing specific monitoring data. . These objects of the information model layer 7A are the same as those described above.

  The target correspondence layer 7B has an event reception object 17 that receives monitoring data spontaneously output from the monitoring control target 2 from the input / output correspondence layer 7C. When there is monitoring data that matches a pre-registered condition among the received monitoring data, the event reception object 17 newly generates a monitoring item value object 14 for managing the monitoring data, and includes the monitoring data in the monitoring data. By adding the information of the generated monitoring item value object 14 to the monitoring item object 13 that manages the corresponding monitoring item, the monitoring item value object 14 can be searched for the newly generated monitoring item value object 14. To.

  The input / output correspondence layer 7 </ b> C receives the data exchange object 16 that receives the monitoring data spontaneously output from the monitoring control target 2 via the input / output interface 4 and transmits the received monitoring data to the event reception object 17. Have. If necessary, the data exchange object 16 converts the monitoring data received from the monitoring control target 2 into a data format that can be handled by the event receiving object 17.

  The processing procedure of the event monitoring method executed by the group of objects described above will be described with reference to FIG. First, the event reception object 17 corresponding to the monitoring control target 2 notifies itself of the monitoring data received from the monitoring control target 2 to the data exchange object 16 that is connected to the monitoring control target 2 and handles input / output. (B-201). When the registration is normally performed, the data exchange object 16 issues a registration confirmation notification to the event reception object 17 (B-202).

  When the monitoring data is actually transmitted from the monitoring control target 2, the data exchange object 16 notifies the event reception object 17 as a character string every time the monitoring data sent from the monitoring control target 2 is received. (C-201). The data exchange object 16 returns to the reception waiting state from the monitoring control object 2 again immediately after the notification to the event reception object 17. Of the monitoring data output from the monitoring control target 2 received by the monitoring control data input / output program 7, a plurality of conditions (events) for selecting the monitoring data to be stored can be set. In this case, for example, as many event reception objects 17 as the number of conditions (events) are prepared. In this case, the data exchange object 16 notifies the plurality of event reception objects 17 of monitoring data at the same time.

  The event reception object 17 analyzes the character string received from the data exchange object 16, and generates a monitoring item value object 14 when the condition matches a pre-registered condition (for example, when a specific type of alarm is met). Then, the value (monitoring data) obtained by the analysis is stored in the generated monitoring item value object 14 (C-202). The process for generating the monitoring item value object 14 is the same as that described above. The event receiving object 17 that generated the monitoring item value object 14 associates the generated monitoring item value object 14 with the corresponding monitoring item object 13 (C-203). The association process is the same as described above.

  On the other hand, when the monitoring data targeted by the mobile agent 60 (main monitoring control program 6) is acquired, the same processing procedure as the autonomous monitoring method shown in FIG. 4 is performed. That is, in response to a monitoring data retrieval request from the mobile agent 60 to the information model layer 7A (A-201, A-203), the information model object 12 notifies the mobile agent 60 of the corresponding monitoring item object 13 (A- 202), the monitoring item object 13 provides the monitoring data acquired from the corresponding monitoring item value object 14 to the mobile agent 60 (A-204, A-205). However, the monitoring item object 13 notifies the mobile agent 60 of the name of the monitoring item value object 14 that manages the monitoring data applicable to the request from the mobile agent 60, and the mobile agent 60 directly accesses the monitoring item value object 14 for monitoring. You may make it acquire data.

  The processing of A-201 to A-205, the processing of B-201 and B-202, and the processing of C-201 to C-203 described above are different processing flows, and are processed in parallel. It is possible.

  Next, the on-demand monitoring method will be described. The on-demand monitoring method refers to a method in which the monitoring control data input / output program 7 acquires monitoring data from the monitoring control target 2 in response to a request from the main monitoring control program 6 (mobile agent 60 in this embodiment).

  For example, the on-demand monitoring method is specifically realized by a group of objects shown in FIG. The processing procedure of the on-demand monitoring method will be described with reference to FIG. First, the mobile agent 60 issues a monitoring data acquisition request to the information model object 12 representing the monitoring control target 2 (S301). The information model object 12 that has received the monitoring data acquisition request from the mobile agent 60 sends the monitoring data to the target driving object 15 that can translate the request for the information model from the mobile agent 60 into a command that the monitoring control target 2 can understand. Acquisition is entrusted (S302). The target driving object 15 entrusted with the monitoring data acquisition from the information model object 12 generates a command corresponding to the request for the information model from the mobile agent 60, and the command is used as the data exchange object 16 corresponding to the input / output interface 4. (S303). The data exchange object 16 converts the command to the monitoring control target 2 passed from the target driving object 15 into a data format corresponding to the input / output interface 4 and transmits it to the monitoring control target 2. Then, the data exchange object 16 receives monitoring data from the monitoring control target 2 as a response to the previously transmitted command, and passes the received monitoring data to the target driving object 15 (S304). If necessary, the data exchange object 16 converts the monitoring data received from the monitoring control target 2 into a data format that can be handled by the target driving object 15. Next, the target drive object 15 passes the monitoring data received from the data exchange object 16 to the information model object 12 (S305). If necessary, the target drive object 15 converts the monitoring data received from the data exchange object 16 into a data format that can be handled by the information model object 12. Next, the information model object 12 passes the monitoring data received from the target driving object 15 to the mobile agent 60 (S306). If necessary, the information model object 12 converts the monitoring data received from the target drive object 15 into a data format that can be handled by the mobile agent 60.

  As described above, in the on-demand monitoring method, processing starts from a monitoring data acquisition request from the mobile agent 60, and the mobile agent 60 passes through the information model layer 7A, the target correspondence layer 7B, and the input / output correspondence layer 7C. Monitoring data is acquired from the monitoring control target 2. In the series of processes described above, the objects belonging to each of the information model layer 7A, the target corresponding layer 7B, and the input / output corresponding layer 7C all start processing based on a method call to themselves and other objects called by the object Wait until the processing of the method ends and there is a response as a result. That is, each layer object performs a method call synchronously. Also, the mobile agent 60 that has issued the monitoring data acquisition request continues to wait until a response to the request is received.

  Next, the synchronization control method will be described. The synchronous control method means that the supervisory control data input / output program 7 operates the supervisory control target 2 based on a control command from the primary supervisory control program 6 (in this embodiment, the mobile agent 60), and the primary supervisory control program Reference numeral 6 denotes a method of waiting until the operation result is obtained.

  The synchronization control method is specifically realized by a group of objects shown in FIG. A processing procedure of the synchronous control method will be described with reference to FIG. The processing procedure of the synchronous control method is almost the same as the processing procedure of the on-demand monitoring method. First, the mobile agent 60 issues a control command for operating the monitoring control target 2 to the information model object 12 representing the monitoring control target 2 (S401). The information model object 12 that has received a control command from the mobile agent 60 operates the monitoring control target 2 on the target driving object 15 that can translate the control command from the mobile agent 60 into a command that the monitoring control target 2 can understand. (S402). The target driving object 15 entrusted with the operation of the monitoring control target 2 from the information model object 12 generates a command corresponding to the control command from the mobile agent 60 and uses the command as a data exchange object corresponding to the input / output interface 4. 16 (S403). The data exchange object 16 converts the command to the monitoring control target 2 passed from the target driving object 15 into a data format corresponding to the input / output interface 4 and transmits it to the monitoring control target 2. The monitoring control target 2 performs control according to the received command. Then, the data exchange object 16 receives the control result information from the monitoring control target 2 as a response to the previously transmitted command, and passes the received control result information to the target drive object 15 (S404). If necessary, the data exchange object 16 converts the control result information received from the monitoring control target 2 into a data format that can be handled by the target drive object 15. Next, the target drive object 15 passes the control result information received from the data exchange object 16 to the information model object 12 (S405). If necessary, the target drive object 15 converts the control result information received from the data exchange object 16 into a data format that can be handled by the information model object 12. Next, the information model object 12 passes the control result information received from the target drive object 15 to the mobile agent 60 (S406). If necessary, the information model object 12 converts the control result information received from the target drive object 15 into a data format that can be handled by the mobile agent 60.

  As described above, in the synchronous control method, processing starts from a control command from the mobile agent 60, and the monitoring control target is transmitted from the mobile agent 60 via the information model layer 7A, the target corresponding layer 7B, and the input / output corresponding layer 7C. The control command is transmitted to 2, and the control result information is transmitted from the monitoring control target 2 to the mobile agent 60. In the series of processes described above, the objects belonging to each of the information model layer 7A, the target corresponding layer 7B, and the input / output corresponding layer 7C all start processing based on a method call to themselves and other objects called by the object Wait until the processing of the method ends and there is a response as a result. That is, each layer object performs a method call synchronously. Also, the mobile agent 60 that has issued the monitoring data acquisition request continues to wait until a response to the request is received.

  Next, the asynchronous control method will be described. In the asynchronous control method, after the main supervisory control program 6 (in this embodiment, the mobile agent 60) issues a control command for the supervisory control target 2, it moves or disappears without obtaining control result information on the spot, The responsibility of the control data input / output program 7 refers to the process of completing the operation and obtaining the control result information.

  The asynchronous control method is specifically realized by, for example, a group of objects described below.

  The information model layer 7A includes an information model object 12, an operation item object 18 that manages a specific operation item, and an operation item value object 19 that manages specific control result information. The operation item object 18 manages information related to operation items and manages a set of operation item value objects 19. The operation item object 18 is prepared for the number of operation items, for example. The operation item value object 19 manages control result information at a certain point in time, and the method of handling is specified as a method.

  If an operation item is defined in the information model object 12, the operation item is fixed, and there is a possibility that the operation item will be excessive or deficient later. A program configuration that can flexibly cope with addition and deletion of operation items by separating operation items from the information model object 12 and defining the relationship between the information model object 12 and the operation item object 18 as in the present embodiment It becomes. Also, as in the present embodiment, the control result information is separated from the operation item object 18 and is defined as a relationship between the operation item object 18 and the operation item value object 19, thereby managing the control result information (for example, unnecessary). Program configuration can be flexibly set.

  The information model object 12 can search for an operation item object 18 that manages a specific operation item. For this purpose, the information model object 12 has, for example, a data structure (for example, an array) in which “a character string specifying an operation item” and “name of an operation item object” are associated with each other. The operation item object 18 can search for an operation item value object 19 that manages specific control result information. For this purpose, the operation item object 18 has, for example, a data structure (for example, an array) in which “control command ID” and “name of the operation item value object” are associated with each other. The control command ID is an ID for specifying a control command issued by the mobile agent 60 at a certain time. For example, a time stamp when a control command is issued from the mobile agent 60 may be used as the control command ID.

  The target correspondence layer 7B has a target drive object 15 that translates an asynchronous control command for the information model object 12 from the mobile agent 60 into a command understandable by the monitoring control target 2 and issues the command to the input / output correspondence layer 7C. is doing. When the target drive object 15 receives control result information from the input / output correspondence layer 7C as a response to the command issued by itself, the target drive object 15 newly generates an operation item value object 19 for managing the control result information and performs the control. Information on the generated operation item value object 19 is added to the operation item object 18 that manages the corresponding operation item so that the operation item object 18 can be searched for the newly generated operation item value object 19. To.

  The input / output correspondence layer 7C transmits the command issued by the target drive object 15 to the monitoring control target 2 in the data format corresponding to the input / output interface 4, and the control result information output as a response from the monitoring control target 2 It has a data exchange object 16 that is passed to the target drive object 15. If necessary, the data exchange object 16 converts the control result information received from the monitoring control target 2 into a data format that can be handled by the target drive object 15.

  A processing procedure of the asynchronous control method executed by the group of objects described above will be described with reference to FIG. First, the mobile agent 60 issues a control command for operating the monitoring control target 2 to the information model object 12 representing the monitoring control target 2 (A-501). The mobile agent 60 that issued the control command disappears on the spot or moves to another monitoring control device 5 without obtaining the control result information. The information model object 12 that has received a control command from the mobile agent 60 operates the monitoring control target 2 on the target driving object 15 that can translate the control command from the mobile agent 60 into a command that the monitoring control target 2 can understand. (A-502). In the method provided by the target driving object 15 that receives the entrustment, it is defined that the target driving object 15 starts processing autonomously. The target drive object 15 entrusted with the operation of the monitoring control target 2 from the information model object 12 and starting autonomous processing generates a command corresponding to the control command from the mobile agent 60, and sends the command to the input / output interface. 4 to the data exchange object 16 corresponding to 4 (A-503). The commands issued by the target drive object 15 are similar to the sequence control for controlling the monitoring control target 2 according to a predetermined procedure, the set value is passed to the monitoring control target 2, and the target value with the status of the monitoring control target 2 It is similar to the feedback control that controls to go to, etc., and implements the control as needed. The data exchange object 16 converts the command to the monitoring control target 2 passed from the target driving object 15 into a data format corresponding to the input / output interface 4 and transmits it to the monitoring control target 2. The monitoring control target 2 performs control according to the received command. Then, the data exchange object 16 receives the control result information from the monitoring control target 2 as a response to the previously transmitted command, and passes a character string representing the received control result information to the target drive object 15 (A-504). ). The processes A-503 and A-504 are performed synchronously. That is, the target drive object 15 continues to wait until a response is returned from the data exchange object 16.

  The target drive object 15 that has received the character string representing the control result information generates the operation item value object 19 after analyzing the contents thereof, and generates the operation item value (control result information) obtained by the analysis. It is stored in the value object 19 (A-505). The class of the operation item value object 19 (a model of an object in which only a method is defined and data is not defined) is prepared in advance. The target driving object 15 calls a class of the operation item value object 19 prepared in advance, gives the acquired control result information to the class, generates a method and data set (that is, an object) (that is, creates an instance), and The generated operation item value object 19 is stored with a unique object name according to a certain rule.

  The target drive object 15 that generated the operation item value object 19 associates the generated operation item value object 19 with the corresponding operation item object 18 (A-506). Specifically, the operation item object 18 that manages the operation item corresponding to the control command is specified, and the “control command ID” and the “name of the operation item value object” possessed by the operation item object 18 are associated with each other. The control command ID corresponding to the name of the generated operation item value object 19 and the control result information is added to the data structure (for example, array).

  On the other hand, when a mobile agent 60 other than the mobile agent 60 that has issued the control command or the mobile agent 60 that has moved again acquires target control result information, first, the information model that is the control target A search request for control result information is issued to the object 12 (B-501). The search request includes, for example, a character string that specifies an operation item. On the other hand, the information model object 12 refers to a data structure (for example, an array) associated with the “character string for specifying the operation item” and the “name of the operation item object” owned by the information model object 12. The operation item object 18 that manages the operation item to be specified is specified, and the name of the specified operation item object 18 is notified to the mobile agent 60 (B-502).

  Next, the mobile agent 60 issues a control result information acquisition request to the operation item object 18 notified from the information model object 12 (B-503). The acquisition request includes, for example, a control command ID. On the other hand, the operation item object 18 refers to a data structure (for example, an array) in which the “control command ID” and the “name of the operation item value object” owned by the operation item object 18 are associated with each other. ”Identifies the operation item value object 19 that matches the control command ID presented by the mobile agent 60. When the control command ID is a time stamp, the acquisition result of the control result information from the mobile agent 60 may include a time or a threshold, and the operation item object 18 is “control command ID”. Matches the time or threshold value presented from the mobile agent 60, or the operation item value object 19 whose “control command ID” is after (or before) or above (or below) the threshold value presented from the mobile agent 60. It may be specified. In addition, different methods corresponding to each search condition such as “match with presentation time”, “match with presentation threshold”, “after presentation time”, “before presentation time”, “above threshold”, “below threshold” are prepared in the operation item object 18. Thus, the mobile agent 60 can use an appropriate search condition by calling a method suitable for its own processing on the operation item object 18. It is also possible to prepare a search condition method such as “latest control result information”. The operation item object 18 acquires the control result information from the operation item value object 19 that manages the control result information applicable to the request from the mobile agent 60 (B-504), and passes the control result information to the mobile agent 60 ( B-505). The operation item object 18 notifies the mobile agent 60 of the name of the operation item value object 19 that manages the control result information applicable to the request from the mobile agent 60, and the mobile agent 60 directly accesses the operation item value object 19. You may make it acquire control result information. Through the above process, the mobile agent 60 can acquire the control result information and reflect the control result information in the process of the entire monitoring control system 1.

  Here, for example, in this embodiment, it is assumed that each object that performs autonomous processing holds one thread. In the thread control of the monitoring control data input / output program 7, priority can be set. In the thread control of the monitoring control data input / output program 7, when a thread having a high priority is being executed, the thread having a low priority is not executed. In addition, when a thread having a high priority is started during execution of a thread having a low priority, an interrupt is generated and the thread having a high priority is preferentially executed. In this case, for example, the target driving object 15 and the data exchange object 16 are prevented from having data that causes inconsistency when different processes are accessed simultaneously. When the main supervisory control program 6 is realized by the mobile agent 60, it is incorporated in the thread control in the supervisory control data input / output program 7. As a result, the processing priority of the mobile agent 60 is taken into account in the thread control of the monitoring control data input / output program 7, and the processing of the main monitoring control program 6 that is strict in real time is automatically given priority.

  The computer that functions as the monitoring control device 5 includes, for example, a CPU 21 that is a central processing unit, a storage device 22 such as a RAM, a ROM, and a hard disk, and an input / output interface 4 that is communicably connected to the monitoring control target 2. And hardware resources such as a network interface 23 for communicating with other monitoring and control devices 5 and software resources such as an operating system (OS) 24. A monitoring control data input / output program 7 is set up in the storage device 22 of the monitoring control device 5. In addition, a mobile agent 60 is loaded as the main monitoring control program 6 in the storage device 22 of the monitoring control device 5 as necessary. The computer loaded with the mobile agent 60 also functions as the main monitoring control device 3. Furthermore, data such as monitoring data and control result information is stored in the storage device 22 of the monitoring control device 5 as necessary. The operating system 24 is not limited to a real-time OS or a desktop OS, but a graphical user interface (GUI) is not particularly necessary, so that the GUI function is deleted from the viewpoint of speeding up the processing. Is suitable. The input / output interface 4 is not limited to a specific one, and a known or new interface that can be connected to the monitoring control target 2 may be appropriately adopted.

  According to the supervisory control data input / output program 7 configured as described above, the main supervisory control program 6 has the three-layer structure of the information model layer 7A, the target correspondence layer 7B, and the input / output correspondence layer 7C. Communication for monitoring control can be performed to the information model layer 7A without being conscious of the difference in the monitoring control object 2 (power system equipment) and the difference in the input / output interface 4. Therefore, a unified interface for accessing the monitoring control target 2 can be provided to the main monitoring control program 6 (mobile agent 60 in the present embodiment). Thereby, the structure of the main monitoring control program 6 can be simplified, and the construction of the main monitoring control program 6 is facilitated. In addition, since the connection of each layer in the three-layer structure (the degree to which the adjacent layer must be changed when a certain layer is changed) can be sparse, a specific monitoring control target 2 (power system device) or A software module (object) corresponding to a specific input / output interface 4 is transferred to another monitoring control target 2 (power system device) or a software module (object) corresponding to another input / output interface 4 to another layer (especially information). The model layer 7A) can be replaced without affecting it. Therefore, it is possible to flexibly modify program parts (objects) based on differences in individual power system devices and differences in the input / output interface 4, thereby facilitating program construction. As a result, it is possible to respond to requests for multi-vendor support.

  In addition, the monitoring control data input / output program 7 autonomously acquires and saves monitoring data by the autonomous monitoring method processing, so that the main monitoring control program 6 can promptly update the latest monitoring data only by inquiring to the information model layer 7A. Can be obtained. In the case of the autonomous monitoring method, there is no time for inquiring from the main monitoring control program 6 to the monitoring control target 2, so that the waiting time until the main monitoring control program 6 acquires monitoring data can be shortened, and a request for real-time processing is required. Can be satisfied.

  Furthermore, also in the event monitoring method processing, the main monitoring control program 6 only inquires to the information model layer 7A by monitoring the registered event and autonomously acquiring and storing the monitoring data. Thus, for example, monitoring data relating to alarms requiring special attention can be quickly acquired. Even in this event monitoring method, there is no time for inquiring from the main monitoring control program 6 to the monitoring control target 2, so that the waiting time until the main monitoring control program 6 acquires monitoring data can be reduced, and the real-time processing performance can be reduced. Can satisfy the request. Further, the event reception object 17 located in the target correspondence layer 7B and the data exchange object 16 located in the input / output correspondence layer 7C operate autonomously, thereby preventing congestion of the data reception processing. In addition, by limiting the role of the data exchange object 16 to waiting for receiving an event from the monitoring control target 2 and transferring it to the registered event receiving object 17, the real-time property when a plurality of events occur at the same time is achieved. It can be secured.

  Further, the main monitoring control program 6 itself does not need to be aware of the difference between the autonomous monitoring method provided by the monitoring control data input / output program 7 and the event monitoring method, and requests the necessary monitoring data from the information model layer 7A. (That is, a method suitable for own processing may be called from the object of the information model layer 7A). Therefore, acquisition of monitoring data corresponding to various environments and conditions can be realized without complicating the configuration of the main monitoring control program 6.

  Further, by the asynchronous control method, the main monitoring control program 6 can start another process immediately after issuing a control command to the information model layer 7A. Therefore, the waiting time until the main supervisory control program 6 receives a response to the control command issued by itself can be eliminated. As a result, the main supervisory control program 6 can efficiently proceed with the process, and thus can contribute to speeding up the process of the entire supervisory control system 1 and can contribute to a request for real-time processing.

  Furthermore, since the main monitoring control program 6 that has issued the monitoring data acquisition or control command by the on-demand monitoring method and the synchronous control method can reliably receive the response, monitoring data acquisition or forced termination operation in an emergency, etc. Also, it can cope with a case where high reliability is required.

  As described above, according to the present invention, flexibility corresponding to various monitoring control objects 2 and input / output interfaces 4, real-time performance of monitoring control data input / output processing, high reliability of monitoring control processing in an emergency, etc. And the correspondence to the asynchronous processing by the mobile agent 60 can be realized at the same time.

  In an experimental system for monitoring and controlling a power distribution system in which a large number of distributed power sources have been installed, an information model layer 7A / on a Java Virtual Machine compatible with JDK1.4.2 on Microsoft Windows XP (registered trademark of Microsoft Corporation) An object to be arranged in the target correspondence layer 7B / input / output correspondence layer 7C was implemented. In the input / output correspondence layer 7C of this embodiment, an object corresponding to socket communication using TCP / IP is arranged. Further, in the target correspondence layer 7B of the present embodiment, objects that handle commands related to the operation and measurement of the synchronous generator are arranged. In the information model layer 7A of the present embodiment, objects based on specifications defined in IEC 61970-301, which is an information model for control stations of IEC (International Electrotechnical Commission), are arranged.

  The above-described embodiment is an example of a preferred embodiment of the present invention, but is not limited thereto, and various modifications can be made without departing from the gist of the present invention. For example, in the above-described embodiment, the main monitoring control program 6 is configured to include one or a plurality of mobile agents 60. However, the main monitoring control program 6 is configured as a mobile agent technology base. Is not limited. The main supervisory control program 6 only needs to be configured to be able to use the method provided by the information model layer 7A, and may be general supervisory control software that does not use mobile agent technology. In this case, the number of monitoring control devices 5 may be one, and the main monitoring control device 3 and the monitoring control device 5 may be configured on the same computer.

  In the above-described embodiment, the monitoring control data input / output program 7 includes three types of monitoring methods and two types of control methods. However, it is not always necessary to include all these monitoring control methods. It suffices if a necessary monitoring method or control method is provided in the environment in which the data input / output program 7 is used, and if there is an unnecessary method, it may be deleted.

  In the above-described embodiment, the monitoring control target 2 is a power system device, but a device other than the power system device may be the monitoring control target 2, or software used for device control may be the monitoring control target 2. good. In this case, the monitoring control data input / output program 7 can be used not only for hardware but also for cooperation with different software. Even when the supervisory control data input / output program 7 is linked with hardware, the API (application programming interface) or driver provided by the OS is actually connected between the supervisory control data input / output program 7 and the hardware. Therefore, the communication partner of the monitoring control data input / output program 7 is only software. Even when the monitoring control data input / output program 7 serves as a bridging role for cooperation between the software and the main monitoring control program 6, there is software that realizes the monitoring control function for the device to be monitored and controlled. It is still a three-layer structure. For example, when inter-process communication with monitoring control target software is performed using a socket, the input / output correspondence layer 7C holds data related to socket communication and performs related processing. The target correspondence layer 7B plays a role of translating a request for the information model layer 7A from the main monitoring control program 6 into a command understandable by the software of the cooperation partner. In the information model layer 7A, for example, the software of the cooperation partner is expressed as a standardized information model.

  For example, the present invention may be applied to the demand control system 1 shown in FIG. The main supervisory control devices 5 existing in the supervisory control system 1 are (1) an operation management system 5a, (2) an operation management subsystem 5b, (3) a loop controller (LPC) 5c, and (4) for high voltage. There are four types of supply / demand interface 5d / low-voltage system management subsystem 5e (hereinafter abbreviated as supply / demand IFs 5d and 5e). These monitoring control devices 5 are connected to each other via a communication network 8.

  For example, one operation management system 5a is arranged for a demand place system having a scale in which the distribution systems of the three distribution substations are interconnected. The main role is to calculate the optimum setting value for controllable devices (distributed power supply, LPC 5c, etc.) in the demand point system. In order to realize this role, an optimal control amount determination program 31 is provided. For this calculation, the power generation amount and load data of the distributed power source in the demand point system are used.

  The operation management subsystem 5b is responsible for supervisory control of a part of the system (this is referred to as a section) partitioned by the section switch or LPC 5c. The most important role is autonomous and distributed protection control that is carried out in units of sections in order to quickly and surely detect and remove accidents and to minimize the number of accidents. Since this function handles multi-point information and requires processing in a short time, the function is realized in the information transmission program. Further, if necessary, the sensor-equipped switch 25 may be directly connected and operated.

  The LPC 5c suppresses voltage fluctuations on the line by controlling the voltage and power flow, and increases the capacity that can be connected to the system of the distributed power source. In addition, when the accident occurs, control is performed so that the distributed power source can be continuously operated in a section where the influence of the accident occurs. In order to realize these functions, the LPC 5c has a device control program 26 for controlling them together with power devices such as an AC / DC converter.

  The supply and demand IFs 5d and 5e are responsible for monitoring and control related to the operation of distributed power sources and loads. Among these, the supply / demand interface for high voltage 5d is directly connected to a distributed power source or a load as the generator 28 to perform monitoring control. On the other hand, in the case of the low-voltage system management subsystem 5e, information exchange with the distributed power source and the load is performed via a device (low-voltage supply / demand interface) 27 installed for each low-voltage consumer. In these monitoring and control devices 5, a distributed power supply control program 29 and a load control program 30 for operating a distributed power supply and a load are resident.

  The monitoring control function of the demand point system is executed in cooperation with various software. The main programs are (1) optimal control amount determination program 31, (2) LPC device control program 26, (3) distributed power control program 29, (4) load control program 30, and (5) system monitoring control program ( There are five types of main supervisory control programs 6).

  The optimal control amount determination program 31 is arranged in the operation management system 5a, and calculates the control amount so that the distributed power source linked to the demand point system is optimally operated. The LPC device control program 26 controls the devices in the LPC 5c, and the distributed power control program 29 and the load control program 30 control the distributed power source and the load directly connected to the supply and demand IFs 5d and 5e, respectively.

  The system monitoring control program (main monitoring control program 6) transmits the monitoring control information between the monitoring control devices 5a to 5e, and the programs 26, 29, 30, 31 and the system devices included in each monitoring control device 5 Take charge of the cooperation. At the same time, it is responsible for monitoring and control processing centered on systems such as accident section separation. This program is built on the basis of mobile agent technology from the viewpoint of realizing various processes in limited computing resources and ensuring flexibility for changes in system configuration.

  The supervisory control data input / output program 7 is installed in the LPC 5c, the supply and demand IFs 5d and 5e, and the operation management subsystem 5b, which are the supervisory control devices 5. For the system monitoring control program using the mobile agent 60, the distributed power source and load as the generator 28, the system equipment such as the low voltage supply and demand interface 27, the sensor-equipped switch 25, the LPC device control program 26, the distributed power source. It provides a unified interface when cooperating with other programs such as the control program 29 and the load control program 30. In this case, system devices such as the generator 28, the low-voltage supply and demand interface 27, the sensor-equipped switch 25, and programs such as the LPC device control program 26, the distributed power control program 29, and the load control program 30 are included in the monitoring control data input / output program 7 It becomes the monitoring control object seen from

1 is a configuration diagram illustrating an example of a configuration of a monitoring control device according to an embodiment of a monitoring control system of the present invention. It is a block diagram which shows the whole said monitoring control system. It is a conceptual diagram which shows the relationship between the object of an information model layer, and the object of an object corresponding | compatible layer. It is a figure which shows the flow of a process in which the monitoring control data input / output program acquires monitoring data autonomously. It is a figure which shows the flow of a process in case the monitoring control object transmits monitoring data as an event with respect to the monitoring control data input / output program. It is a figure which shows the flow of a process in case a monitoring control data input / output program queries the monitoring control object based on the request | requirement of the main monitoring control program, and acquires monitoring data synchronously. It is a figure which shows the flow of a process in case the main supervisory control program and the supervisory control data input / output program perform control with respect to the supervisory control object synchronously. It is a figure which shows the flow of a process in case the main supervisory control program and the supervisory control data input / output program control the supervisory control object asynchronously. It is a block diagram which shows one Embodiment of the monitoring control system of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Monitoring control system 2 Monitoring control object 3 Main monitoring control apparatus 4 Input / output interface 5 Monitoring control apparatus 6 Main monitoring control program 7 Monitoring control data input / output program 7A Information model layer 7B Target corresponding layer 7C Input / output corresponding layer 8 Communication network 12 Information Model Object 13 Monitoring Item Object 14 Monitoring Item Value Object 15 Target Drive Object 16 Data Exchange Object 17 Event Reception Object 18 Operation Item Object 19 Operation Item Value Object 60 Mobile Agent

Claims (12)

  A device that is hardware or software used for controlling the device is set as a monitoring control target, and the main monitoring control device that monitors and controls the monitoring control target is connected to the monitoring control target via the input / output interface. A monitoring control device that provides data output from the monitored control target to the main monitoring control device and transmits a command of the main monitoring control device to the monitoring control target, and one or more computers. In a monitoring control system comprising a main monitoring control program that functions as a main monitoring control device and a monitoring control data input / output program that causes a computer to function as the monitoring control device, the monitoring control data input / output program includes the main monitoring control program. Request from the main supervisory control program configured to communicate with the program An information model layer that accepts and returns a response corresponding to the request; a target correspondence layer configured to communicate with the information model layer and to issue a command understandable by the monitoring control target; the target correspondence layer and the monitoring It has a three-layer structure with an input / output support layer configured to be communicable with a control target and performing input / output control corresponding to the input / output interface. The monitoring control command from the main monitoring control program is transmitted to the monitoring control target sequentially through the information model layer, the target corresponding layer, and the input / output corresponding layer, and The monitoring data or control result information output from the monitoring control target passes through the input / output correspondence layer, the target correspondence layer, and the information model layer in order, and then the main supervisor. A command transmitted to the control program, the target corresponding layer requesting the monitoring control target monitoring data to the input / output corresponding layer periodically or based on a state change in the monitoring control data input / output program; And monitoring data that is a response from the input / output correspondence layer to the request is stored, and the information model layer responds to the monitoring data search request from the main monitoring control program. A monitoring control system characterized by providing corresponding monitoring data among stored monitoring data.   A device that is hardware or software used for controlling the device is set as a monitoring control target, and the main monitoring control device that monitors and controls the monitoring control target is connected to the monitoring control target via the input / output interface. A monitoring control device that provides data output from the monitored control target to the main monitoring control device and transmits a command of the main monitoring control device to the monitoring control target, and one or more computers. In a monitoring control system comprising a main monitoring control program that functions as a main monitoring control device and a monitoring control data input / output program that causes a computer to function as the monitoring control device, the monitoring control data input / output program includes the main monitoring control program. Request from the main supervisory control program configured to communicate with the program An information model layer that accepts and returns a response corresponding to the request; a target correspondence layer configured to communicate with the information model layer and to issue a command understandable by the monitoring control target; the target correspondence layer and the monitoring It has a three-layer structure with an input / output support layer configured to be communicable with a control target and performing input / output control corresponding to the input / output interface. The monitoring control command from the main monitoring control program is transmitted to the monitoring control target sequentially through the information model layer, the target corresponding layer, and the input / output corresponding layer, and The monitoring data or control result information output from the monitoring control target passes through the input / output correspondence layer, the target correspondence layer, and the information model layer in order, and then the main supervisor. Transmitted to the control program, the target correspondence layer stores monitoring data that matches a pre-registered condition among the monitoring data spontaneously output from the monitoring control target notified from the input / output correspondence layer. In addition, the information model layer provides corresponding monitoring data among the stored monitoring data in response to a monitoring data search request from the main monitoring control program.   The plurality of monitoring control devices are connected to each other via a communication network, and the main monitoring control program is configured to include one or a plurality of mobile agents that move between the plurality of monitoring control devices. The supervisory control system according to claim 1 or 2.   4. The supervisory control system according to claim 3, wherein the information model is configured according to a rule unified among at least a plurality of the supervisory control devices.   A device that is hardware or software used for controlling the device is set as a monitoring control target, and the main monitoring control device that monitors and controls the monitoring control target is connected to the monitoring control target via the input / output interface. A monitoring control device that provides data output from the monitored control target to the main monitoring control device and transmits a command of the main monitoring control device to the monitoring control target, and one or more computers. In a monitoring control system comprising a main monitoring control program that functions as a main monitoring control device and a monitoring control data input / output program that causes a computer to function as the monitoring control device, a plurality of the monitoring control devices are connected via a communication network. The main supervisory control program is connected to each other and moves between the supervisory control devices. The monitoring control data input / output program is configured to be communicable with the main monitoring control program and accepts a request from the main monitoring control program and responds to the request. An information model layer that returns a response, an object corresponding layer that is configured to be communicable with the information model layer and issues a command that can be understood by the monitoring control target, and can communicate with the target corresponding layer and the monitoring control target It has a three-layer structure with an input / output support layer configured to perform input / output control corresponding to the input / output interface, and the information model layer is an information model representing the state and operation of the monitoring control target by software. And the information model is configured according to a rule unified among at least a plurality of the monitoring control devices, and the main supervisor Monitoring data or control result is transmitted from the monitoring control target to the monitoring control target and monitoring control commands from the control program are sequentially transmitted to the monitoring control target through the information model layer, the target corresponding layer, and the input / output corresponding layer. Information is transmitted to the main supervisory control program sequentially through the input / output correspondence layer, the target correspondence layer, and the information model layer, and the mobile agent issues an asynchronous control command to the information model layer, and then Without waiting for a response to the command, it disappears or moves to another device for monitoring and control, and the control command from the mobile agent sequentially passes through the information model layer, the target corresponding layer, and the input / output corresponding layer, the target In addition to being transmitted to the device, the target correspondence layer stores the control result information output from the monitoring control target notified from the input / output correspondence layer. The information model layer provides the stored control result information in response to an acquisition request for control result information from another mobile agent or the mobile agent that has moved again. Monitoring control system.   Each layer of the information model layer, the target correspondence layer, and the input / output correspondence layer is configured by an object that is a program part, and the information model layer includes an information model object that functions as the information model, and a specific operation item. An operation item object to be managed and an operation item value object to manage specific control result information are further included. The information model object can search for an operation item object to manage a specific operation item, and the operation item object Can search for an operation item value object that manages specific control result information, and the target correspondence layer converts an asynchronous control command for the information model object from the mobile agent into a command that the monitoring control target can understand. Has a target driven object to be translated and issued, The input / output correspondence layer transmits a command issued by the target drive object to the monitoring control target in a data format corresponding to the input / output interface and outputs control result information output as a response from the monitoring control target to the target driving A data exchange object to be passed to the object, and when the target driving object receives control result information from the data exchange object in response to a command issued by itself, an operation item value object for managing the control result information is newly created. The operation item value for which the operation item object is newly generated by adding the information of the generated operation item value object to the operation item object for managing the operation item corresponding to the control. Make the object searchable and The information model notifies the mobile agent of the corresponding operation item object in response to a control result information acquisition request from the agent to the information model layer, and the operation item object transmits the corresponding operation item value object to the mobile agent. The monitoring control system according to claim 5, wherein the mobile agent is provided with control result information notified from the corresponding operation item value object.   Each layer of the information model layer, the target correspondence layer, and the input / output correspondence layer is configured by an object that is a program part, and the information model layer includes an information model object that functions as the information model and a specific monitoring item. It further has a monitoring item object for managing and a monitoring item value object for managing specific monitoring data, the information model object can search for a monitoring item object for managing a specific monitoring item, and the monitoring item object is A monitoring item value object for managing specific monitoring data can be searched, and the target corresponding layer is configured to monitor the input / output corresponding layer periodically or based on a state change in the monitoring control data input / output program. Target drive objects that voluntarily issue commands that request monitored data for control The input / output correspondence layer transmits a command issued by the target drive object to the monitoring control target in a data format corresponding to the input / output interface, and outputs a response from the monitoring control target as a response. A monitoring item for managing the monitoring data when receiving the monitoring data from the data exchange object in response to a command issued by the target driving object by itself. A new value object is generated, and the information of the generated monitoring item value object is added to the monitoring item object that manages the monitoring item corresponding to the monitoring data, and the monitoring item object is newly generated. Searchable monitoring item value object can be searched In response to a monitoring data search request for the information model layer from the main monitoring control program, the information model object notifies the corresponding monitoring item object to the main monitoring control program, and the monitoring item object corresponds. The monitoring item value object is notified to the main monitoring control program, or monitoring data acquired from the corresponding monitoring item value object is provided to the main monitoring control program. Monitoring and control system described in 1.   Each layer of the information model layer, the target correspondence layer, and the input / output correspondence layer is configured by an object that is a program part, and the information model layer includes an information model object that functions as the information model and a specific monitoring item. It further has a monitoring item object for managing and a monitoring item value object for managing specific monitoring data, the information model object can search for a monitoring item object for managing a specific monitoring item, and the monitoring item object is A monitoring item value object that manages specific monitoring data can be searched, and the target correspondence layer has an event reception object that receives monitoring data spontaneously output from the monitoring control target from the input / output correspondence layer. The event receiving object is registered in advance in the received monitoring data. If there is monitoring data that matches the specified condition, a monitoring item value object that manages the monitoring data is newly generated, and the above generation is performed for the monitoring item object that manages the monitoring item corresponding to the monitoring data. The monitoring item value object is added to the monitoring item value object so that the newly generated monitoring item value object can be searched, and the main monitoring control program makes a search data search request to the information model layer. On the other hand, the information model notifies the corresponding monitoring item object to the main monitoring control program, and the monitoring item object notifies the corresponding monitoring item value object to the main monitoring control program or the corresponding monitoring item. The monitoring data acquired from the value object Monitoring and control system according to any one of claims 1 to 7, characterized in that provided in grams.   The monitoring according to any one of claims 1 to 8, wherein the main supervisory control program continues to wait until a response to the command is received after issuing a supervisory control command that requires synchronization to the information model layer. Control system.   The monitoring control system according to claim 1, wherein the monitoring control target is a power system device.   A supervisory control data input / output program for causing a computer to function as the supervisory control device of the supervisory control system according to any one of claims 1 to 10. 12. The supervisory control data input / output program according to claim 11, which is created in a compiler type language.

Images