JP2020135016A - Monitoring control device - Google Patents

Abstract

To provide a monitoring control device which can easily select a search object, inhibiting false selection of the search object when searching the search object from accumulated operation records of a system.SOLUTION: A monitoring control device includes: a search screen display unit 124 which displays, on a background image, a monitoring image having symbols which are arranged thereon and which are images representing pieces of information on a plurality of devices, monitors and controls the plurality of devices, and displays a search screen that contains a searching image consistent with the monitoring image; a search object selecting unit 126 that selects a symbol designated among the plurality of symbols; a keyword designating unit 128 that designates a keyword corresponding to the selected symbol; a search process unit 130 that executes searching using the designated search keyword; and a search result display unit 134 that displays the search result. Each symbol is a symbol representing the device itself, or a symbol representing the state of the device to be monitored. Thereby, the false selection of the search object can be inhibited.SELECTED DRAWING: Figure 3

Description

The present invention relates to a monitoring control device that monitors and controls the state of each facility using an image display device in a plant or the like in which a plurality of facilities are arranged.

A plurality of electric facilities (including electric devices) are arranged in a plant (power generation plant, water treatment plant, chemical plant, etc.), and each electric facility is provided with a monitoring control device including a display capable of displaying an image. Monitoring and control are performed. For example, Patent Document 1 below discloses a monitoring control system that searches past history by selecting an element to be monitored on a screen. This monitoring control system builds a tree-structured database with various alarms and various events estimated to occur from the equipment to be monitored as elements, and sets each alarm and various events generated from each equipment at the time when they occur. It is associated with information and stored in the history storage unit in a time-series list format. At the time of search, this monitoring and control system graphically displays the contents of the database (tree structure of elements) on the screen, receives the operator's selection for each element on the screen, and displays the list corresponding to the selected element. Extract from the history storage unit. By presenting the tree structure in an easy-to-understand manner, the operator's search work becomes easy.

Japanese Unexamined Patent Publication No. 2003-280733

However, in the technique disclosed in Patent Document 1, since the element presented in the tree structure is a display of a character string, the operator must identify the character string, and a similar character string can be erroneously selected. There is sex. Normally, devices of the same type are marked with the same characters (device name, etc.) even if they are placed in different places, and different devices are described as "first", "second", "second", "second", etc. in the device name, etc. Since they are distinguished by adding short markings such as "No. 1" and "No. 2", there is a possibility that a device different from the intended device may be selected. In particular, when the device name is relatively long, the possibility of erroneous selection increases.

Therefore, an object of the present invention is to provide a monitoring control device capable of suppressing erroneous selection of a search target and easily selecting a search target when searching the accumulated operation history of the system.

The monitoring control device according to the present invention monitors and controls a system including a plurality of devices by displaying a monitoring image in which symbols which are images representing information about each of the plurality of devices are arranged on a background image. A monitoring control device that displays a search screen that includes the same search image as the monitoring image, in addition to the monitoring image, and a user from among a plurality of symbols placed on the search image. The past of a plurality of devices using the selection unit that selects the symbol specified by the selection unit, the specific unit that specifies the search keyword corresponding to the symbol selected by the selection unit, and the search keyword specified by the specific unit. The symbol includes a search processing unit that searches a set of information including a message indicating the state of the above and a search result display unit that displays the search result by the search processing unit, and the symbol is a symbol representing the corresponding device itself or , A symbol representing the state to be monitored of the device.

As a result, the same image (search image) as the monitoring image displayed on the screen used for normal system operation is displayed on the search screen, and the search target is displayed on that image (search image). Since the selection is made, the administrator or the like can easily identify the device and can suppress erroneous selection of the search target.

Preferably, the search result display unit displays a badge, which is an image indicating the number of hits by the search processing unit for the symbol, in the vicinity of the selected symbol on the search image. As a result, the number of hits can be easily grasped for each device to be searched.

More preferably, the search result display unit displays a list of search results corresponding to the badge in response to the designation of the badge by the user. As a result, the history of the device to be searched can be easily confirmed.

More preferably, the search screen display unit changes and displays the symbol before the designation in response to the designation of the symbol from the plurality of symbols arranged on the search image. This makes it possible to easily confirm the device selected as the search target.

Preferably, the selection unit deselects the designated symbol in response to the designation of the symbol in the selected state among the plurality of symbols. As a result, the device once selected as the search target can be easily excluded from the search target.

According to the present invention, the same image (search image) as the monitoring image displayed on the screen used for normal system operation is displayed on the search screen, and the image (search image) is displayed. Since the search target is selected, the administrator or the like can easily identify the device and can suppress erroneous selection of the search target. Further, if a symbol is selected, the search keyword is automatically specified, so that the search can be easily executed without the trouble of inputting the search keyword with a keyboard or the like.

It is a block diagram which shows the system (plant) in which the monitoring control apparatus which concerns on embodiment of this invention is arranged. It is a block diagram which shows the structure of the monitoring control apparatus of FIG. It is a block diagram which shows the function of the monitoring control device of FIG. It is a figure which shows the search screen. It is a figure which shows the screen of a system operation. It is a block diagram which shows the structure of the image stored in the storage part. It is a figure which shows the state which the search target is selected on the search screen. It is a figure which shows the correspondence between a symbol and a search keyword in a tabular form. It is a figure which shows the state which the search result is displayed on the search screen. It is a figure which shows the state which the detail of the search result is displayed on the search screen. It is a flowchart which shows the process executed by the monitoring control device of FIG. It is a figure which shows an example of the background image. It is a figure which shows an example of a search image. It is a figure which shows the state which a symbol is selected. It is a figure which shows the state which the search result is displayed. It is a figure which shows an example of the image for monitoring before system operation.

In the following embodiments, the same parts are given the same reference numbers. Their names and functions are also the same. Therefore, detailed explanations about them will not be repeated.

With reference to FIG. 1, the monitoring control device 102 according to the embodiment of the present invention is a device for monitoring and controlling a system 100 including a plurality of electric devices (typically showing electric devices 200 and 202). .. The system 100 is, for example, a plant such as a power plant, a water treatment plant, a chemical plant, and the electric devices 200 and 202 are devices constituting various facilities installed therein, and are monitored by a monitoring control device 102. It is a target. The electrical equipment 200 and 202 are installed in various places in the plant (hereinafter, also referred to as the site), and the monitoring control device 102 is located in a monitoring room or the like (hereinafter, also referred to as the center) for centrally monitoring the system. Have been placed.

The monitoring and control device 102 has a function of communicating with the electric devices 200 and 202, and provides state information (including measured values) indicating the operating state (operation, stop, normal, abnormality, failure, etc.) of each device. The corresponding character information (hereinafter, also referred to as a message) acquired from the device and the time information (including the date) indicating the time when the status information was acquired are stored in the database. The message includes, for example, device identification information (equipment name, device name, etc.), state identification information (normal / abnormal name, failure name, etc.), and information indicating occurrence or recovery (occurrence / recovery). ..

[Hardware configuration of monitoring control device]
An example of the hardware configuration of the monitoring control device 102 is shown with reference to FIG. The monitoring control device 102 includes a display unit 104 for displaying an image, an operation unit 106 for receiving instructions from an administrator or the like (hereinafter referred to as a user), a communication unit 108 for communicating with an external device, a storage unit 110 for storing data, and the like. It includes a control unit 112 for controlling and a bus 114 for exchanging data between each unit. The monitoring control device 102 is, for example, a computer.

The display unit 104 is, for example, a liquid crystal display, a CRT display, or the like, and the operation unit 106 is, for example, a computer mouse or a touch panel arranged on the liquid crystal display. The user can input an instruction to the monitoring control device 102 by operating the operation unit 106 (pressing the mouse button, touch operation, etc.). The input instruction is transmitted to the control unit 112 via the bus 114.

The communication unit 108 has a function for communicating with the electric devices 200 and 202. The communication unit 108 has a communication function by, for example, parallel communication (GPIB or the like) or serial communication (EIA-422 (RS-422), EIA-485 (RS-485), etc.) according to the communication specifications of the other device. .. The communication unit 108 may have a communication function by a wired or wireless LAN. If the monitoring target of the monitoring control device 102 is a measuring device such as a transformer and directly outputs the measured value, the communication unit 108 has a function of receiving the measured value (voltage, current, etc.) via the electrical wiring. Has. For example, the communication unit 108 includes an A / D converter that samples an input analog signal (voltage, current, etc.) at a predetermined cycle and converts it into digital data.

The storage unit 110 is, for example, a rewritable non-volatile semiconductor memory or a hard disk drive (hereinafter referred to as HDD). The data received by the communication unit 108 is stored in the storage unit 110. The storage unit 110 stores the image data to be displayed on the display unit 104. If the display unit 104 does not include the video memory, a part of the storage unit 110 may be used as the video memory. The control unit 112 includes a CPU (Central Processing Unit) and controls each unit.

[Functional configuration of monitoring control device]
The function of the monitoring control device 102 will be described with reference to FIG. As described above, the monitoring control device 102 includes a monitoring unit 120 that monitors the monitored device, a database unit 122 that stores messages received from the monitored device, a search screen display unit 124, a search target selection unit 126, and a keyword identification unit. Includes 128, a search processing unit 130, a search result storage unit 132, and a search result display unit 134. The functions of each of these units are realized by the control unit 112 of FIG. 2 by using the display unit 104, the operation unit 106, the communication unit 108, and the storage unit 110.

The search screen display unit 124 displays a search screen for selecting a search target. For example, the search screen display unit 124 displays the search screen 300 shown in FIG. 4 on the display unit 104. The search screen 300 includes a search image 306, an OK key 308, and a cancel key 310. The search image 306 is composed of a background image 302 and a symbol 304 which is an image smaller than the background image 302 and represents a device to be monitored. As will be described later, the background image 302 includes a graphic (line) representing character information (device name, etc.) that identifies the device and a relationship (positional relationship, connection relationship (for example, mechanical or electrical connection relationship)) between the devices. Minutes, arrows, etc.) are drawn, and the symbol 304 is arranged on the background image 302.

Here, the search image is the same image as the monitoring image that constitutes the operation screen used for monitoring the state of each device in the system 100. With reference to FIG. 5, the monitoring image 314 constituting the operation screen 312 is composed of the background image 302 and the symbol 304, and is the same image as the search image 306 shown in FIG. On the operation screen 312 shown in FIG. 5, keys and the like (not shown) for controlling the device are displayed around the monitoring image 314. In the monitoring image of the monitoring screen, when each symbol can be changed due to the occurrence of a failure or the like, for example, the monitoring image in which the entire system is operating normally may be used as the search image.

The background image 302 and the symbol 304 are stored in the storage unit 110. With reference to FIG. 6, the storage unit 110 includes a background image area 140 and a symbol image area 142. A background image is stored in the background image area 140. The symbol image area 142 is divided into a first state image area 144 and a second state image area 146. In the first state image area 144 and the second state image area 146, symbols representing different states of the corresponding devices are stored with respect to the symbols corresponding to the same device. For example, regarding a circuit breaker, there are two states, an open state and a short-circuited state, and an image showing these two states (first state and second state) in different figures is displayed for the same device (circuit breaker). As one symbol, it is stored in the first state image area 144 and the second state image area 146, respectively. For example, the symbol image data 148 and 150 are different images representing the same circuit breaker.

As described above, the symbol is not limited to the symbol representing the device itself, but also includes a symbol representing a state (malfunction, abnormality, etc.) to be monitored by the device. For example, if the image data 148 and 150 of the symbol are symbols representing the current flowing through the same device, the first state image area 144 is an image representing a normal current state (for example, the current value is equal to or less than the threshold value). Is stored, and an image representing an overcurrent is stored in the second state image area 146.

The data format of the background image and the symbol image is arbitrary. It may be bitmap data (raster data) or vector data.

If the background image and the symbol image are stored in this way, for example, the video memory for displaying the image on the display unit 104 has a layer structure (layer structure), and the background image 302 is displayed on one layer ( It is realized by drawing) and displaying (drawing) the symbol 304 on another layer. For example, if all the devices to be monitored are in a normal state, the monitoring image 314 is an image in which the symbol stored in the first state image area 144 is arranged in the background image stored in the background image area 140. is there. If the state of any of the devices to be monitored changes, the symbol on the corresponding monitoring image 314 is replaced with the symbol stored in the second state image area 146. After drawing the background image 302 on one layer, the symbol 304 may be drawn on the same layer.

On the other hand, unlike the operation screen 312, the search screen 300 is a screen for designating a search target and displaying a search result, and it is not necessary to change the symbol according to the state of each device. Therefore, the search image is stored in the first state image area 144, for example, in the monitoring image when all the devices to be monitored are in the normal state, that is, the background image stored in the background image area 140. It may be a surveillance image generated by arranging symbols. As will be described later, on the monitoring screen, when the device is operating normally, the symbol indicating the corresponding state to be monitored is displayed faintly so as not to be visually recognized, and when an abnormality occurs in the device, It may be displayed darker so that it can be easily seen. That is, for example, an image in which some symbols stored in the first state image area 144 of FIG. 6 are difficult to see, and the symbols stored in the second state image area 146 corresponding to the symbols are easy to see. May be. In such a case, the search image is a symbol representing a state to be monitored when all the devices to be monitored are in an abnormal state (for example, a second state image) so that the symbol to be searched can be easily seen. A monitoring image displaying the symbol stored in the area 146) may be used. As described above, the monitoring image varies depending on the state of the system, but any image representing any state can be used as the search image. That is, in the search image, each symbol constituting the monitoring image (a symbol representing the device itself and a symbol representing the state to be monitored of the device) is arranged on the background image at the same position as the monitoring image. Any image may be generated, and the same image as the monitoring image means such an image.

Returning to FIG. 3, the search target selection unit 126 detects the operation of the operation unit 106 on the symbol on the search image, and selects the operated symbol as the search target. For example, information regarding the position of each symbol (the size of the symbol and the position coordinates of the representative point of the symbol) is stored in the storage unit 110, and the position on the search screen 300 operated by the operation unit 106 (for example, the mouse). The click position) is detected, and it can be determined whether or not the operation on the symbol has been performed depending on whether or not the detected position is located within each symbol.

When an operation on the symbol is performed, the information is stored in a predetermined area of the storage unit 110. For example, the flag of each symbol may be stored in the storage unit 110, and the flag may be inverted each time an operation for the symbol is performed. For example, if the initial flag is set to "0", the corresponding flag is set to "1" when an operation on the symbol is performed. When an operation is performed on a symbol whose flag is "1", the corresponding flag is set to "0". In this way, the symbol whose flag is "1" is the selected symbol.

FIG. 7 shows a state in which a symbol is selected on the search screen 300 of FIG. In FIG. 7, the symbol to which the dot pattern is added indicates that the symbol is selected. Symbols 304a and 316 are the selected symbols. In the state shown in FIG. 4, when the symbol 304 is operated (for example, a mouse click) by the operation unit 106, it changes as shown as the symbol 304a in FIG. The change in the display state is indicated by, for example, a change in the color, brightness, size, etc. of the symbol, an addition of a predetermined figure to the symbol (addition of a square frame), or the like.

An instruction to confirm the selection of the symbol and execute the process of specifying the search keyword is given by, for example, operating the OK key 308. The cancel key 310 is used to deselect all. When the cancel key 310 is operated in the state shown in FIG. 7, the display returns to the display shown in FIG.

The keyword identification unit 128 specifies a search keyword corresponding to each symbol (device) selected as a search target by the search target selection unit 126. With reference to FIG. 8, a search keyword is set in advance for each symbol, and the information is stored in the storage unit 110. The search keyword is character information included in the history {time, message} stored in the database. For example, with respect to a symbol representing a device, character information (equipment name, etc.) representing the equipment to which the device belongs and character information (device name, etc.) representing the device itself are set as search keywords. Character information (for example, the name of an abnormality or failure (for example, overcurrent, overvoltage, etc.)) indicating the state of the device is set for the symbol representing the state to be monitored of the device.

The search processing unit 130 searches the database unit 122 using the search keyword specified by the keyword specifying unit 128. The search is performed using the corresponding search keyword for each symbol representing the selected device. The search result is stored by the search result storage unit 132 for each symbol representing the selected device.

The search result display unit 134 acquires the search result from the search result storage unit 132 and displays it on the display unit 104. The search result display unit 134 displays a part of the information of the search result, for example, the number of searched cases (hereinafter, also referred to as the number of hits) and the like as shown in FIG. 9, for example. In FIG. 9, as a search result for each of the symbols selected as the search target, the number of hits is shown in a frame at the upper right of each symbol. The badge 318 shows the number of hits by the search for the symbol 304a, and the badge 320 shows the number of hits by the search for the symbol 316.

The search result display unit 134 receives a user's operation while displaying a part of the information of the search result as shown in FIG. 9, and displays a more detailed search result. For example, in FIG. 9, when the badge 320 is operated, as shown in FIG. 10, detailed information of the search result corresponding to the badge 320 is displayed as a list 322. In Listing 322, the past message history of the device corresponding to the symbol 316 is displayed. List 322 is deleted, for example, when the "x" in the upper right corner of List 322 is operated (mouse click).

[Operation of monitoring control device]
The processing performed by the monitoring control device 102 will be described more specifically with reference to FIG. The process shown in FIG. 11 is realized by the control unit 112 reading a predetermined program from the storage unit 110 and executing the program.

In step 400, the control unit 112 displays the initial screen of the search screen. Specifically, the control unit 112 reads the background image from the background image area 140 of the storage unit 110, arranges the symbol read from the first state image area 144 of the symbol image area 142 on the background image, and searches. An image for search is generated, and a search screen including the image for search is displayed on the display unit 104. For example, the search screen 300 shown in FIG. 4 is displayed. The search screen 300 may be displayed in the entire display area of the display unit 104, or may be displayed in a part of the display area of the display unit 104. If the monitoring control device 102 can display a multi-window, the search screen 300 can be displayed as one of a plurality of displayed windows. For example, the search screen 300 shown in FIG. 4 and the operation screen 312 shown in FIG. 5 can be displayed on the display unit 104 at the same time.

In step 402, the control unit 112 determines whether or not there is an operation on the search screen. For example, the control unit 112 determines whether or not the operation unit 106 has operated the search screen 300 of FIG. If it is determined that there has been an operation, control proceeds to step 404. Otherwise step 402 is repeated.

In step 404, the control unit 112 determines whether or not the operation detected in step 402 is an operation on the symbol. If it is determined that the operation is on a symbol, control shifts to step 406. Otherwise, control proceeds to step 414.

In step 406, the control unit 112 determines whether or not the symbol determined to have been operated in step 404 is an unselected symbol. As described above, if the flag corresponding to each symbol is stored in the storage unit 110, it can be determined whether or not the symbol is selected based on the value of the flag. If it is determined that it has not been selected, control shifts to step 408. If not (selected), control proceeds to step 410.

In step 408, the control unit 112 puts the symbol determined to have been operated in step 404 into the selected state. Specifically, "1" is set in the corresponding flag. As a result, for example, as shown in FIG. 7, the display of the selected symbol changes. After that, control shifts to step 412.

In step 410, the control unit 112 deselects the symbol determined to have been operated in step 404 and puts it in an unselected state. Specifically, "0" is set in the corresponding flag. As a result, on the search screen 300, the display of the symbol that was displayed indicating the selected state returns to the original display (unselected state). After that, control shifts to step 412.

In step 412, the control unit 112 determines whether or not the end instruction has been received. When it is determined that the end instruction has been received, the control unit 112 erases the search screen, deletes the flag and the search result on the storage unit 110, and ends the program. Otherwise, control returns to step 402. The end instruction is given, for example, by operating the "x" on the upper right of the operation screen (search screen 300 in FIG. 4).

If the determination result in step 404 is NO (not an operation on the symbol), in step 414, the control unit 112 performs an operation on the OK key (OK key 308 in FIG. 4) in the operation detected in step 402. It is determined whether or not it is. If it is determined that the operation is for the OK key, the control shifts to step 416. Otherwise, control proceeds to step 422.

In step 416, the control unit 112 identifies a search keyword corresponding to each selected symbol. Specifically, the control unit 112 identifies a symbol whose flag stored in the storage unit 110 corresponding to each symbol is “1” indicating the selected state, and sets a search keyword corresponding to the specified symbol. It is specified from the search keyword table stored in the storage unit 110 (see FIG. 8). After that, control shifts to step 418.

In step 418, the control unit 112 searches the database unit 122 stored in the storage unit 110 using the search keyword specified for each symbol in step 416. When a plurality of keywords are specified for one symbol, a search is performed using all of them (AND search). The control unit 112 stores the searched result (a set of {time, message}) in the storage unit 110. After that, control shifts to step 420.

In step 420, the control unit 112 totals the number of hits for each symbol to be searched and displays a badge in the vicinity of the corresponding symbol. As a result, for example, as shown in FIG. 10, the number of hits is displayed. The control then returns to step 402.

If the determination result NO in step 414 (not the operation for the OK key), the control unit 112 in step 422 operates the cancel key (cancellation key 310 in FIG. 4) for the operation detected in step 402. It is determined whether or not it is. If it is determined that the operation is for the cancel key, the control shifts to step 424. Otherwise, control proceeds to step 426.

In step 424, the control unit 112 deselects all the symbols (sets all flags to “0”), and deletes the search result if it is stored in the storage unit 110. As a result, the search screen 300 returns to the initial state as shown in FIG. 4, for example. The control then returns to step 402.

If the determination result in step 422 is NO (not an operation for the cancel key), in step 426, the control unit 112 determines whether or not the operation detected in step 402 is an operation for the badge. .. If it is determined that the operation is on the badge, control proceeds to step 428. Otherwise, control returns to step 402.

In step 428, the control unit 112 displays a list of search results corresponding to the badge operated in step 426, for example, as shown in FIG. FIG. 10 shows a state in which the list 322 is displayed in response to the operation of the badge 320. After that, control shifts to step 430.

In step 430, the control unit 112 determines whether or not it has received an instruction to delete the list from the display unit 104. The instruction to delete the list is given, for example, by operating the "x" at the upper right of the list by the operation unit 106. If it is determined that the instruction has been received, control proceeds to step 432. Otherwise, step 430 is repeated.

In step 432, the control unit 112 erases the list displayed on the display unit 104. The control then returns to step 402.

As described above, the user can search the history of the device corresponding to the symbol from the database storing the history (past messages, etc.) simply by operating the symbol and operating the OK key on the search screen. At this time, the search image displayed on the search screen is the same as the monitoring screen displayed on the operation screen that is normally used for system monitoring and control, so that the user can use each device in the system. Can be easily identified, and the device for which you want to refer to the history can be selected without misidentification.

[Examples of background images and symbols]
Specific examples of the background image and the symbol are shown below with reference to FIGS. 12 to 16. With reference to FIG. 12, the background image 340 includes names of devices to be monitored and controlled (CR52-2, CB52, etc.), lines indicating the connection relationship between the devices, and arrows indicating the power supply direction. , Figures (5 rectangles) representing devices that are not subject to monitoring and control, and symbols (V, A, kW) representing the voltage, current and power supplied to the system are included (drawn). There is).

With reference to FIG. 13, the search image was formed by arranging a symbol representing each device itself and a symbol representing a state to be monitored of each device on the background image 340 shown in FIG. It is an image. The search image shown in FIG. 13 is the same image as the monitoring image. Specifically, as will be described later, the symbol of each device itself is a symbol representing the state of normal operation, and the symbol representing the state to be monitored of each device is the symbol representing the state in which an abnormality has occurred. is there.

The symbol 350 is a symbol (short-circuited figure) representing the device (circuit breaker) itself, and the search keyword specified by selecting the symbol 350 includes the equipment name to which the device belongs and the device name (for example, CR52-). 2) is included.

In the vicinity of the symbol 350 representing the device itself, symbols 352, 354 and 356 representing the state to be monitored of the device are arranged. The symbol 352 is a symbol representing the operating subject of the device corresponding to the symbol 350, and "middle" represents the operation from the center. As described above, the central means a monitoring room or the like for centrally monitoring the system 100, and the operation from the center is from a device (including a monitoring control device 102) installed in the monitoring room or the like. , That means remote control of electrical equipment 200 and 202 located in the field, that is, in various places in the plant. Another operation is on-site operation. The on-site operation means that a person directly operates the electric device 200 or 202 at the installation location of the electric device 200 or 202. The search keyword specified by selecting the symbol 352 includes the equipment name and device name (for example, CR52-2) of the corresponding symbol 350 and, for example, a state different from the normal state (operation from the center) (monitoring). Includes characters (eg, "current") that represent field operations that are (should).

Symbols 354 and 356 are symbols representing anomalies (states to be monitored). The symbol 354 represents an abnormality of the undervoltage, and the search keyword specified by selecting the symbol 354 includes the equipment name and device name (for example, CR52-2) of the corresponding symbol 350 and, for example, "undervoltage". included. The symbol 356 represents an abnormality of overcurrent, and the search keyword specified by selecting the symbol 356 includes the equipment name and device name (for example, CR52-2) of the corresponding symbol 350 and, for example, "overcurrent". included.

The same applies to symbols arranged in the vicinity of each character such as "CB52", "CL52-1", and "CP52-1".

The symbol 360 is a symbol representing a value (measured value) of the voltage supplied to the system. The symbol 362 is a symbol representing an abnormality in voltage. The search keyword specified by selecting the symbol 362 includes information representing the entire system and, for example, "overvoltage". Similar symbols are placed for the current and power supplied to the system.

When a symbol is selected in the search image of FIG. 13, the search image changes as shown in FIG. In FIG. 14, symbols 356, 364 and 366 are selected. Each of the symbols 356, 364 and 366 is surrounded by a square frame to indicate that they have been selected.

FIG. 15 shows a screen after the OK key is operated and the search is executed in the state of FIG. FIG. 15 shows a state in which the number of hits in the search results for the selected symbols 356, 364 and 366 is displayed as a badge, and the corresponding list 372 is displayed in response to the operation of the badge 370. The number of hits for symbols 356, 364 and 366 are "12", "2" and "3", respectively, and in list 372, two search results are displayed in one line for one hit, for a total of two hits. It is displayed in two lines.

With reference to FIG. 16, an example of a monitoring image used on the operation screen of the system is shown. The monitoring image of FIG. 16 is an image formed by arranging a symbol representing each device itself and a symbol representing the state of each device on the background image 340 shown in FIG.

FIG. 16 shows a state before the system is put into operation, that is, before the system is powered. The symbol 350b representing the circuit breaker is a figure representing the open state of the circuit breaker, unlike the symbol 350 of FIG. The symbol 352b is an image including the character "present" indicating that the circuit breaker of the symbol 350b is in a state of being operated in the field. Symbols 354b, 356b and 362b are the same images as symbols 354, 356 and 362 of FIG. 13, respectively, but are displayed faintly (hard to see). Since the symbol 360 is not supplied with power, it is displayed as 0V. Each symbol displayed in FIG. 16 is, for example, an image read from the first state image area 144 of FIG.

When power is supplied to the system from the state of FIG. 16, the state of each device changes (starts operation), so that the figure of the corresponding symbol changes. In FIG. 16, for example, the symbol 350b representing the circuit breaker is changed to the symbol 350 (figure representing the short-circuited state of the circuit breaker) in FIG. The symbol indicating the state to be monitored of the device is in the monitoring state, but remains dimmed in the state in which the device is operating normally (recovery state). In a state in which an abnormality has occurred in a device (occurrence state), a symbol indicating the state to be monitored of the device is displayed darkly (clearly) so as to be easy to see. As the search image, the same image as in FIG. 16 or an image in which the symbol of each device itself is changed to the symbol in the normal operating state in the image of FIG. 16 can be used. In that case, the symbol indicating the state to be monitored of the device is displayed so that it is difficult to see, so in order to make it easy to see, it is assumed that an abnormality has occurred in all the devices of the system, and the operation screen is displayed. The displayed monitoring image (for example, the same image as in FIG. 13) may be used as the search image.

In the above, the case where the device to be monitored and controlled is a circuit breaker has been described, but the present invention is not limited to this. The equipment to be monitored and controlled may be equipment used in electric power equipment (for example, a generator, a transformer, an instrument transformer, etc.). As a symbol representing those devices themselves, a symbol specified by a standard such as JIS may be used. In addition, the cases where the devices to be monitored are overcurrent and undervoltage have been described, but the present invention is not limited to this. The state to be monitored of the device may be an electrical state such as overvoltage, insufficient current, overpower, or insufficient power.

The equipment to be monitored and controlled is not limited to equipment related to power supply. It may be a motor, a pump, a storage tank, or the like. The state to be monitored of these devices may be a mechanical state (eg, motor speed, pump flow rate, etc.) or a physical state (eg, liquid level, weight, etc.). Corresponding sensors may be used to detect mechanical and physical conditions.

Although the present invention has been described above by explaining the embodiments, the above-described embodiments are examples, and the present invention is not limited to the above-described embodiments. The scope of the present invention is indicated by each claim of the scope of claims, taking into consideration the description of the detailed description of the invention, and all changes within the meaning and scope equivalent to the wording described therein. Including.

100 System 102 Monitoring control device 104 Display unit 106 Operation unit 108 Communication unit 110 Storage unit 112 Control unit 114 Bus 120 Monitoring unit 122 Database unit 124 Search screen display unit 126 Search target selection unit 128 Keyword identification unit 130 Search processing unit 132 Search results Storage unit 134 Search result display unit 140 Background image area 142 Symbol image area 144 First state image area 146 Second state image area 148, 150 Image data 200, 202 Electrical equipment 300 Search screen 302, 340 Background image 304, 304a, 316 , 350, 350b, 352, 352b, 354, 354b, 356, 356b, 360, 362, 362b, 364, 366 Symbol 306 Search image 308 OK key 310 Cancel key 312 Operation screen 314 Surveillance image 318, 320, 370 Badge 322, 372 list

Claims (5)

A monitoring control device for monitoring and controlling a system including a plurality of devices by displaying a monitoring image in which symbols which are images representing information about each of the plurality of devices are arranged on a background image.
A search screen display means for displaying a search screen including the same search image as the surveillance image in addition to the surveillance image.
A selection means for selecting a symbol designated by the user from a plurality of the symbols arranged on the search image, and a selection means.
A specific means for specifying a search keyword corresponding to the symbol selected by the selection means, and
A search processing means for searching a set of information including a message representing a past state of the plurality of devices by using the search keyword specified by the specific means.
Including a search result display means for displaying search results by the search processing means.
The monitoring control device is characterized in that the symbol is a symbol representing the corresponding device itself or a symbol representing a state to be monitored of the device. The search result display means is characterized in that a badge, which is an image showing the number of hits by the search processing means for the symbol, is displayed in the vicinity of the selected symbol on the search image. The monitoring control device according to claim 1. The monitoring control device according to claim 2, wherein the search result display means displays a list of search results corresponding to the badge in response to the designation of the badge by the user. The search screen display means is characterized in that, in response to a symbol being designated from the plurality of symbols arranged on the search image, the symbol before being designated is changed and displayed. The monitoring control device according to any one of claims 1 to 3. Claims 1 to 4 are characterized in that the selection means deselects the designated symbol in response to the designation of the symbol in the selected state from the plurality of symbols. The monitoring control device according to any one of the above items.

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