JP2012168776A - Monitoring screen verification device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a monitoring screen verification device capable of automatically verifying validity of a monitoring screen of a plant.SOLUTION: In a monitoring screen verification device 10, data of a monitoring screen of a plant is stored at a monitoring screen storage part 3, and data of a system drawing of the plant, based on which the monitoring screen is formed, is stored at a system drawing storage part 1. A monitoring screen analysis part 5 creates a first directed graph corresponding to the monitoring screen obtained from the monitoring screen storage part 3. A system drawing analysis part 2 creates a second directed graph corresponding to the system drawing obtained from the system drawing storage part 1. A monitoring screen verification part 8 verifies validity of the monitoring screen by verifying consistency between the first directed graph and the second directed graph.

Description

  The present invention relates to a monitoring screen verification device that verifies the validity of a monitoring screen used for plant state monitoring.

  The monitoring screen of the plant monitoring and control device uses a simplified diagram of the system drawings describing the plant piping and electrical system so that the supervisor (plant operator) can easily grasp the plant status. . In a large-scale plant, the system drawings are complicated, and the number of necessary monitoring screens is increased. Therefore, there is a problem that the cost for creating and verifying the monitoring screens increases. For this reason, a technique has been proposed in which the creation of a monitoring screen is supported by automatically generating a plant monitoring screen from a plant system drawing to reduce the creation cost (for example, Patent Document 1).

Japanese Patent No. 3474703

  Conventionally, an engineer determines a monitoring control target range and manually creates a monitoring screen of a plant monitoring and control apparatus by a screen creation tool (for example, a CAD tool) based on a plant system drawing. However, it is time consuming for engineers to create manually, and it is difficult to eliminate mistakes completely, and it is also time to verify the validity of the created monitoring screen (consistency with system drawings). There was a problem that production cost increased. In particular, when an error occurs in the monitoring screen design stage, it has been difficult to find it.

  In response, Patent Document 1 proposes a plant monitoring screen creation apparatus that automatically creates a monitoring operation screen when plant flow data and control program data or screen display device definition data are input.

  In general, a plant monitoring screen has a configuration in which display of information on instruments and devices to be monitored and controlled is arranged on a simplified system diagram so that humans can easily understand the state of the plant. Therefore, when designing the monitoring screen, the engineer performs tasks such as simplifying the lines (system lines) that become the plant wiring and piping system, and devising the layout of the information displayed on the monitoring drawing. Is called.

  Also in Patent Document 1, it is assumed that the engineer automatically edits the monitoring screen automatically generated by the plant monitoring screen creation device with screen software so that it is easier for humans to see. This is because the visibility of the monitoring screen depends on the subjectivity of the plant supervisor (operator). However, when manual editing is added, it becomes difficult to correct the monitoring screen while ensuring consistency with the data when the plant flow data is subsequently changed. This increases the risk of errors in the monitoring screen. In addition, it is necessary to verify the validity of the monitoring screen again after correction, and a great deal of time is also spent there. Therefore, there is a demand for automation of the verification of the monitoring screen (detection of errors).

  The present invention has been made to solve the above-described problems, and an object thereof is to provide a monitoring screen verification device capable of automatically verifying the validity of a plant monitoring screen.

  The monitoring screen verification apparatus according to the present invention is a monitoring screen verification apparatus that verifies the validity of a monitoring screen created based on a plant system drawing, wherein the monitoring screen storage unit stores monitoring screen data; A systematic drawing storage unit that stores data of the systematic drawing that is the source of the monitoring screen, a monitoring screen analysis unit that creates a first directed graph corresponding to the monitoring screen, and a second directed graph that corresponds to the systematic drawing And a monitoring screen verification unit that verifies the validity of the monitoring screen by verifying the consistency between the first directed graph and the second directed graph.

  According to the present invention, it is possible to automatically detect an error in the monitoring screen and to verify the validity of the monitoring screen.

1 is a configuration diagram of a monitoring screen verification apparatus 10 according to Embodiment 1. FIG. It is a systematic drawing of the primary cooling system of a pressurized water nuclear power plant as an example of a systematic drawing. It is a figure which shows an example of the monitoring screen produced from the system | strain drawing of FIG. It is the elements on larger scale of the systematic drawing of FIG. It is the elements on larger scale of the monitoring drawing of FIG. It is a figure which shows an example of plant data. 4 is a flowchart illustrating an operation of the monitoring screen verification device according to the first embodiment. It is a flowchart which shows the detail of the process of step ST1 of FIG. It is a figure which shows an example of the 1st directed graph created from the monitoring screen. It is a flowchart which shows the detail of the process of step ST2 of FIG. It is a figure which shows an example of the 2nd directed graph created from the system | strain drawing. It is a flowchart which shows the detail of a process of step ST3 of FIG.

<Embodiment 1>
FIG. 1 is a diagram showing a configuration of a monitoring screen verification apparatus 10 according to Embodiment 1 of the present invention. The monitoring screen verification apparatus 10 includes the following system drawing storage unit 1, system drawing analysis unit 2, monitoring screen storage unit 3, analysis rule storage unit 4, monitoring screen analysis unit 5, verification rule storage unit 6, plant data storage unit 7. , A monitoring screen verification unit 8 and a verification result storage unit 9.

  The system diagram storage unit 1 stores data of a plant system diagram. The system drawing analysis unit 2 acquires the system drawing from the system drawing storage unit 1 and analyzes it. The monitoring screen storage unit 3 stores plant monitoring screen data. The monitoring screen analysis unit 5 acquires and analyzes the monitoring screen from the monitoring screen storage unit 3. The analysis of the monitoring screen performed by the monitoring screen analysis unit 5 is executed based on a predetermined rule (analysis rule) stored in advance in the analysis rule storage unit 4.

  The plant data storage unit 7 stores data of each component of the plant (plant data). The monitoring screen verification unit 8 is based on the analysis result (monitoring screen analysis result) by the monitoring screen analysis unit 5, the analysis result (system drawing analysis result) by the system drawing analysis unit 2, and the plant data extracted from the plant data storage unit 7. The validity of the monitoring screen (consistency with the system diagram) is verified. The verification performed by the monitoring screen verification unit 8 is executed based on a predetermined rule (verification rule) stored in advance in the verification rule storage unit 6. The verification result storage unit 9 is for storing data of a verification result (monitoring screen verification result) by the monitoring screen verification unit 8.

  Hereinafter, the operation of the monitoring screen verification apparatus 10 will be described with reference to specific examples of the plant monitoring screen and system drawings. 2 and 3 are examples of a system diagram and a monitoring screen created based on the system diagram, respectively, and show a system diagram and a monitoring screen of a primary cooling system in a pressurized water nuclear plant.

  As can be seen from FIGS. 2 and 3, the monitoring screen is configured to display parameters necessary for the operation of the plant on a simplified diagram of the system diagram. In the monitoring screen and system diagram, each component and parameter of the plant is displayed as a symbol. In the following explanation, the symbol on the monitoring screen is referred to as “screen symbol”, and the symbol on the system diagram is referred to as “drawing symbol”. ".

  The primary cooling system of the pressurized water nuclear plant shown in FIG. 2 and FIG. 3 includes four loops A to D, but for the sake of simplicity of explanation, the lower right part of the A loop is representatively shown below. explain. 4 is an enlarged view of the A loop portion of the system diagram of FIG. 2, and FIG. 5 is an enlarged view of the A loop portion of the monitoring screen of FIG. FIG. 6 is a diagram showing a part of plant data related to the A loop. The plant data includes information such as equipment names, monitoring points, restrictions, etc. of each element of the plant associated with equipment symbols. FIG. 6 shows data of elements having monitoring points.

  In the A-loop system diagram, as shown in FIG. 4, a system line 40 indicating the A-loop piping extending from the reactor containment vessel and a drawing symbol of each element connected thereto are shown. As the drawing symbols included in the A loop system drawing, the reactor containment vessel drawing symbol 4a, the primary cooling material high temperature side thermometer A (facility symbol: TMA1) drawing symbol 4b, the high pressure injection system drawing symbol 4c, Drawing symbol 4d of primary coolant pressure gauge A (equipment symbol: PGA1), drawing symbol 4e of steam generator A, drawing symbols 4j to 4m of primary coolant flow meters A1 to A4 (equipment symbol: FMA1 to FMA4) Drawing symbols 4f to 4i of valves connected to the primary coolant flow meters A1 to A4 (FMA1 to FMA4) Drawing symbols 4n of the primary coolant pump A (facility symbol: PA1) Primary coolant low temperature side thermometer There is a drawing symbol 4o of A (facility symbol: TMA2), a drawing symbol 4p indicating the flow to the pressurizer spray, and a drawing symbol 4q indicating the flow from the filling system.

  On the other hand, on the A-loop monitoring screen shown in FIG. 5, some of the elements included in the system diagram of FIG. 4 and parameters related thereto are shown as screen symbols. The screen symbols included in the monitoring screen of the A loop include the screen symbol 5a of the reactor containment vessel, the screen symbol 5b indicating the value of the primary coolant pressure gauge A (PGA1), the screen symbol 5c of the steam generator A, 1 Screen symbols 5d to 5g indicating values of the secondary coolant flow meters A1 to A4 (FMA1 to FMA4), a screen symbol 5h of the primary coolant pump A (PA1), and a primary coolant pump oil lift pump A (equipment symbol) : OPA1) (the pump that supplies lubricating oil for smoothing starting by forming an oil film above and below the rotating shaft when starting the primary coolant pump A (PA1)).

  An analog input point P_A1 (see FIG. 6), which is a monitoring point indicating the pressure value [MPa] of the primary coolant, is assigned to the screen symbol 5b indicating the value of the primary coolant pressure gauge A (PGA1). The display value (“XX.XX” portion) on the monitoring screen changes according to the value of the monitoring point. Similarly, analog input points F_A1 to F_A4, which are monitoring points indicating the flow rate of the primary coolant, are assigned to the screen symbols 5d to 5g indicating the values of the primary coolant flow meters A1 to A4 (FMA1 to FMA4). ing. The screen symbol 5h of the primary coolant pump A (PA1) includes a digital input point DI_PA1 which is a monitoring point indicating the operation state (“run”, “stop”, etc.) of the primary coolant pump, and the number of rotations of the pump. An analog input point AI_PA1 that is a monitoring point representing [rpm] is assigned.

  FIG. 7 is a flowchart showing the operation of the monitoring screen verification apparatus 10. Verification of the validity of the monitoring screen by the monitoring screen verification device 10 is performed by verifying the consistency between the monitoring screen and the system drawing according to the following procedure.

  In the monitoring screen verification device 10, the monitoring screen analysis unit 5 first extracts a monitoring screen for verifying validity from the monitoring screen storage unit 3, and from the monitoring screen, a directed graph (hereinafter referred to as “first graph” considering the flow of the system). A process of creating a “directed graph”) is performed (ST1). The directed graph here is a graph constituted by vertices corresponding to components (symbols, connection points, branch points, etc.) of the system diagram or monitoring screen, and lines having directionality connecting the vertices.

  Next, the systematic drawing analysis unit 2 takes out the systematic drawing that is the basis of the monitoring screen to be verified from the systematic drawing storage unit 1, and from the systematic drawing, a directed graph (hereinafter referred to as “second” that considers the system flow). A process for creating a "directed graph") is performed (ST2).

  Then, the monitoring screen verification unit 8 performs processing for verifying the validity of the monitoring screen by verifying the consistency between the first directed graph and the second directed graph (ST3). Finally, the result of the verification is the verification result. It is stored in the storage unit 9 (ST4).

  Details of the process of step ST1 will be described. FIG. 8 is a flowchart thereof. Here, a description will be given using an example of creating the directed graph (first directed graph) of FIG. 9 from the monitoring screen shown in FIG.

  Creation of the first directed graph by the monitoring screen analysis unit 5 is performed based on a predetermined analysis rule. It is possible to create a directed graph from a system drawing in which piping and electrical systems are described based on specific rules, based on certain rules. However, since the monitoring screen is created based on a system drawing so that it can be easily seen by humans, it is necessary to preliminarily define analysis rules necessary for creating a directed graph from the monitoring drawing. The analysis rule defines the rules necessary for the monitoring screen analysis unit 5 to create the first directed graph in view of the changes from the system drawing added when the monitoring screen is created (edited). Are stored in the analysis rule storage unit 4 in advance.

  For example, in the monitoring screen of FIG. 5, the system line 52 is represented by a solid line that overlaps with the arrow 50, so that the analysis rule is “handle a solid line that overlaps the arrow as a system line”, “ “Handling as system flow” is specified. Further, in the monitoring screen of FIG. 5, the screen symbol 5b indicating the value of the primary coolant pressure gauge A (PGA1) and the screen symbols 5d to 5g indicating the values of the primary coolant flow meters A1 to A4 (FMA1 to FMA4). However, since it is displayed using a leader line (broken line), “analyze symbols connected from the system line to the leader line as existing on the system line” are defined as an analysis rule.

  First, the monitoring screen analysis unit 5 extracts a monitoring screen for verifying validity from the monitoring screen storage unit 3 (ST11), and extracts a symbol that is the starting point of the first directed graph from the monitoring screen (ST12). From the monitoring screen of FIG. 5, the screen symbol 5a of the reactor containment vessel that is the starting point of the flow of the system is extracted. Subsequently, the monitoring screen analysis unit 5 extracts a system line (system line) from the monitoring screen (ST13). Here, based on the analysis rule, arrows 50 and 51 are detected from the monitoring screen of FIG. 5, and a solid line 52 overlapping therewith is extracted as a system line. Each subsequent process is also executed based on the analysis rule.

  When the starting point and the system line are extracted, the monitoring screen analysis unit 5 creates a directed graph having the extracted starting point (ST14). Here, a go-to graph starting from the vertex 7a of the reactor containment vessel of FIG. 9 is created.

  Subsequently, the monitoring screen analysis unit 5 follows the system line from the starting screen symbol on the monitoring screen and extracts the screen symbol that becomes the next connection point (ST15), and the vertex corresponding to the extracted screen symbol is directed to the directed graph. (ST16).

  In the case of the monitoring screen of FIG. 5, the system line 52 is traced from the screen symbol 5a of the reactor containment vessel as the starting point, and an analysis that “the symbols connected by the lead lines from the system line are treated as existing on the system line” is performed. Based on the rule, the screen symbol 5b indicating the value of the primary coolant pressure gauge A (PGA1) is extracted as the next connection point. As a result, the vertex 9b of the primary coolant pressure gauge A (PGA1) is added to the directed graph as shown in FIG.

  Thereafter, it is determined whether or not the system line continues (ST17). If the system line continues, the processes of steps ST15 and ST16 are repeated.

  In the case of the monitoring screen of FIG. 5, the screen symbols 5d to 5g indicating the values of the primary coolant flow meters A1 to A4 (FMA1 to FMA4) are arranged side by side on the same lead line. In this case, a vertex 90 as a branch point is created in the directed graph so as not to consider the connection order of these symbols, and the vertices 9d to 9g of the primary coolant flowmeters A1 to A4 (FMA1 to FMA4) are set to the vertexes. 90 is added so as to be connected radially (so-called star connection) (this analysis rule is also stored in the analysis rule storage unit 4 in advance).

  In the monitoring screen of FIG. 5, when the vertex of each screen symbol is added to the valid graph as described above and the system line is continued until the screen symbol 5 a of the reactor containment vessel is returned, the first directed graph shown in FIG. 9 is obtained. can get. Since the pressurizer spray belongs to another system, it is excluded from the extraction target here.

  Next, details of the processing in step ST2 of FIG. 7 will be described. FIG. 10 is a flowchart thereof. Here, a description will be given using an example of creating the directed graph (second directed graph) in FIG. 11 from the system diagram shown in FIG. 4.

  First, the systematic drawing analysis unit 2 takes out the systematic drawing that is the basis of the monitoring screen analyzed in step ST1 (created the first directed graph) from the systematic drawing storage unit 1 (ST21), and extracts the starting point from the systematic drawing. (ST22). From the system diagram of FIG. 4, the drawing symbol 4a of the reactor containment vessel is extracted as a starting point. Subsequently, a system line on the system diagram is extracted (ST23). From the system drawing of FIG. 4, a solid line 60 extending from the drawing symbol 4a of the reactor containment vessel is extracted. Then, a directed graph having the extracted starting point is created (ST24).

  Next, the system line is traced from the starting point of the system drawing, the next connection point is extracted (ST25), and the connection point is added to the directed graph (ST26). In the system diagram of FIG. 4, when the system line 40 is traced from the drawing symbol 4a of the reactor containment vessel, first, a connection point 41 with the system line from the primary coolant high temperature side thermometer A (TMA1) is extracted. 11, a vertex 111 corresponding to the connection point 41 is added.

  Thereafter, it is determined whether the system line is further continued (ST27). If the system line is continued, the processes of steps ST25 and ST26 are repeated.

  In the system diagram of FIG. 4, the connection point 41 is a branch point, from which a system line connected to the drawing symbol 4b of the primary cooling material high temperature side thermometer A (TMA1) and a drawing symbol of the high pressure injection system The system line which goes to the connection point 42 with the system line from 4c is extending. In this case, as shown in FIG. 11, the vertex 11b of the primary coolant high temperature side thermometer A (TMA1) and the vertex 112 corresponding to the connection point 42 are added to the directed graph.

  In the system diagram of FIG. 4, the connection point 42 is also a branch point, but the high-pressure injection system belongs to another system and is excluded from the extraction target. From the connection point 42, the system line which goes to the connection point 43 with the system line from the drawing symbol 4d of the primary coolant pressure gauge A (PGA1) extends. Therefore, as shown in FIG. 11, the vertex 113 corresponding to the connection point 43 is added to the directed graph.

  Further, from the connection point 43 in the system diagram of FIG. 4, a system line connected to the drawing symbol 4d of the primary coolant pressure gauge A (PGA1) and a system line connected to the drawing symbol 4e of the steam generator A extend. ing. Therefore, as shown in FIG. 11, the vertex 11d of the primary coolant pressure gauge A (PGA1) and the vertex 11e of the steam generator A are added to the directed graph.

  In the system diagram of FIG. 4, when the vertex of each connection point is added to the effective graph as described above and the system line is continued until returning to the reactor containment symbol 4 a, the second directed graph shown in FIG. 11 is obtained. can get. Since the pressurizer spray and the filling system belong to different systems, they are excluded from the extraction target here.

  Next, details of step ST3 in FIG. 7 will be described. FIG. 12 is a flowchart thereof. In step ST3, the validity of the monitoring screen is verified by verifying the consistency between the first directed graph obtained from the monitoring screen and the second directed graph obtained from the system drawing. For this verification process, plant data stored in the plant data storage unit 7 and a predetermined verification rule stored in the verification rule storage unit 6 are used.

  Since the monitoring screen is created (edited) based on the system drawing, it is assumed that there is some difference between the first directed graph created from the monitoring screen and the second directed graph created from the system drawing. The verification rule is defined in advance in consideration of an assumed difference. In other words, the verification rule allows differences that inevitably occur between the first directed graph and the second directed graph even when there is no error in the monitoring screen, in view of the changes from the system drawing added when the monitoring screen is created. The rules for this are stipulated.

  For example, in the monitoring screen of FIG. 5, since the system line branched from the system line forming the loop is omitted, the vertex corresponding to the branch point does not appear in the first directed graph of FIG. In this case, a verification rule is defined that “when a vertex is a branch point, a vertex connected to the branch destination is treated as a vertex on the branch point”. Thereby, in the verification of the consistency between the first directed graph and the second directed graph, a difference regarding the presence or absence of the vertex corresponding to the branch point is allowed.

  Moreover, since the screen symbols 5d to 5g of the primary coolant flowmeters A1 to A4 (FMA1 to FMA4) are collectively displayed using one lead line on the monitoring screen of FIG. 5, the first directed graph of FIG. Does not show their connection order. In this case, a verification rule is defined that “when the vertex of the directed graph on the monitoring screen is a branch point and the branch point is connected to a plurality of vertices, the connection order is not considered”. Thereby, in the verification of the consistency between the first directed graph and the second directed graph, a difference in the connection order of a plurality of vertices connected to one branch point is allowed.

  Hereinafter, the consistency between the first directed graph of FIG. 9 and the second directed graph of FIG. 11 will be described using an example in which the plant data of FIG. 6 is verified.

  First, the monitoring screen verification unit 8 determines the starting point of the first directed graph and the starting point of the second directed graph as the vertices to be investigated (ST31). Here, the vertex to be investigated on the first directed graph is defined as “vertex X”, and the vertex to be investigated on the second directed graph is defined as “vertex Y”. Here, the vertex 9a of the reactor containment vessel in FIG. 9 is determined as the vertex X, and the vertex 11a of the reactor containment vessel in FIG.

  Subsequently, it is determined whether or not the vertex X (vertex 9a) is an end point (ST32), and if it is not the end point, it is determined whether a monitoring point is assigned to the screen symbol of the vertex X (ST33). The vertex 9a of the reactor containment vessel having the vertex X is not an end point, and no monitoring point is assigned. In this case, based on the verification rule, a search is made for other vertices to be handled as the vertex X (ST34). If there is no such other vertex (No in step ST35), the next vertex of the first directed graph is searched. The investigation object (vertex X) is moved to the apex 9b of a certain primary coolant pressure gauge A (PGA1) (ST36), and the process returns to step ST32.

  When the vertex X is the vertex 9b, it can be seen from the plant data in FIG. 6 that the corresponding primary coolant pressure gauge A (PGA1) is assigned the analog input point P_A1 as a monitoring point (step ST33). Yes). The monitoring screen verification unit 8 acquires information on the equipment corresponding to the vertex X to which the monitoring point is assigned (ST37). Here, since the vertex X is the vertex 9b, the fact that the vertex X corresponds to the primary coolant pressure gauge A (PGA1) is acquired.

  Subsequently, the monitoring screen verification unit 8 determines whether the vertex that is the investigation target (vertex Y) of the second directed graph is an end point (ST38), and if not, determines whether the vertex Y is a vertex representing equipment. (ST39). Here, the vertex Y is not the end point because it is the vertex 11a of FIG. The vertex Y corresponds to a facility called a reactor containment vessel.

  If the vertex Y corresponds to the facility (Yes in step ST39), the monitoring screen verifying unit 8 checks whether the previously acquired facility of the vertex X and the facility of the vertex Y match (ST42). If the two match (Yes in step ST42), it is determined that the screen symbol of the equipment corresponding to the vertex X is valid (ST44), but here it does not match (No in step ST42), so the second directed graph Is moved to the next vertex 111 (ST43), and the process returns to step ST38.

  The vertex 111 that becomes the vertex Y is not the end point (No in step ST38). Moreover, since the vertex 111 is a branch point, it does not correspond to equipment (No in step ST39). In this case, other vertices to be handled as the vertex Y are searched based on the verification rule (ST40). Here, based on the verification rule that “if the vertex is a branch point, the vertex connected to the branch point is treated as a vertex on the branch point”, the vertex 11b that is the branch destination from the vertex 111 is treated as the vertex Y. .

  Since the vertex 11b corresponds to the equipment of the primary coolant high temperature side thermometer A (TMA1) (Yes in step ST41), the equipment of the vertex X (vertex 9b) and the vertex Y (vertex 11b) acquired earlier are used. It is checked whether or not the equipment matches (ST42). Again, since they do not match, the investigation target is advanced to the vertex 112 (ST43).

  The vertex 112 is not an end point (No in Step ST38), but does not correspond to equipment (No in Step ST39), and there is no other vertex to be treated as the same vertex Y (No in Step ST41). Therefore, the investigation target (vertex Y) moves to the vertex 113 (ST43), and the process returns to step ST38.

  The vertex 113 is not an end point (No in step ST38), but is a branch point that branches to the vertex 11d. Here again, the vertex 11d that is the branch destination from the vertex 113 is treated as the vertex Y based on the verification rule that "if the vertex is a branch point, the vertex connected to the branch destination is treated as a vertex on the branch point". (Yes in step ST41). In other words, the equipment at the vertex 11d of the primary coolant pressure gauge A (PGA1) corresponding to the vertex 11d corresponds to the vertex Y.

  As a result, the equipment at the vertex X and the equipment at the vertex Y coincide in step ST42, and the screen symbol corresponding to the vertex X, that is, the screen symbol indicating the value of the primary coolant pressure gauge A (PGA1) in FIG. 5b is determined to be valid (ST44). Then, the process returns to step ST32.

  On the other hand, if the above process is repeated and the vertex Y advances to the end point (until it returns to the vertex 11a of the reactor containment vessel), but the vertex Y matching the equipment of the vertex X is not found, the screen corresponding to the vertex X It is determined that there is a suspicion of error in the symbol (ST45). In that case, the vertex Y is returned to the vertex that coincided with the facility of the vertex X (or the starting point if it does not exist) (ST46). Then, returning to step ST36, the examination target (vertex X) of the first directed graph is moved to the next vertex.

  The monitoring screen verification unit 8 repeatedly executes the above operation until the investigation target (vertex X) of the first directed graph reaches the end point (until it returns to the vertex 9a of the reactor containment vessel). As a result, the validity of the screen symbols corresponding to all the vertices of the first directed graph is verified.

  When the investigation target (vertex X) of the first directed graph is the vertex 90 that is a branch point to the vertices 9d to 9g of the primary coolant flow meters A1 to A4 (FMA1 to FMA4), the “monitoring screen” When the vertices of the directed graph are branch points and the branch points are connected to a plurality of vertices, the connection order is not considered, and the equipment corresponding to those vertices 9d to 9g It can be determined that the facilities corresponding to the vertices 11j to 11m of the second directed graph match.

  As described above, the monitoring screen verification unit 8 of the monitoring screen verification apparatus 10 according to the present embodiment, for each vertex to which equipment is assigned on the first directed graph, determines whether or not the corresponding vertex exists on the second directed graph. Thus, the consistency between the first directed graph and the second directed graph is verified. The vertex of the first directed graph in which the corresponding vertex is found on the second directed graph is determined to be valid, and the screen symbol of the monitoring screen corresponding to the vertex is also determined to be valid. The monitoring screen verification apparatus 10 according to the present embodiment performs this process for all the vertices while following the first directed graph. As a result, the validity of all the drawing symbols on the monitoring screen is automatically verified. .

  The verification result of each drawing symbol (the verification result of each vertex of the first directed graph) is stored in the verification result storage unit 9, and the engineer can know the error of the monitoring screen by referring to the verification result, The monitoring screen can be appropriately corrected based on the information.

<Embodiment 2>
When creating the first directed graph in step ST1 of FIG. 7, the monitoring screen analysis unit 5 not only extracts screen symbols connected to the system lines on the monitoring screen, but also screen symbols laid out in the vicinity of the system lines. May be extracted as related symbols and added to the first directed graph.

  In that case, the monitoring screen verification unit 8 also verifies the validity of the related symbols included in the first directed graph. In the verification, the restrictions of the facilities described in the plant data and the relations between the facilities are taken into consideration.

  Although not described in the first embodiment, the first directed graph in FIG. 9 shows the primary coolant pump oil lift laid out in the vicinity of the screen symbol 5h of the primary coolant pump A (PA1) in FIG. The screen symbol 5i of the pump A (OPA1) is extracted as a related symbol, and a vertex 9i corresponding thereto is added.

  The monitoring screen verification unit 8 corresponds to the vertex 9i by verifying the relationship between the primary coolant pump A (PA1) and the primary coolant pump oil lift pump A (OPA1) from the plant data of FIG. The validity of the screen symbol 5i to be verified is verified. The monitoring screen verification unit 8 includes the information that “the oil lift pump OPA1 is in operation at the time of start-up” as the restriction of the primary coolant pump A (PA1) in the plant data of FIG. It can be determined that the relationship between the primary coolant pump A (PA1) and the primary coolant pump oil lift pump A (OPA1) is high, and the corresponding screen symbol 5i can be determined to be appropriate.

  According to the present embodiment, it is possible to verify the validity of the related symbols on the monitoring screen.

  1 system drawing storage unit, 2 system drawing analysis unit, 3 monitoring screen storage unit, 4 analysis rule storage unit, 5 monitoring screen analysis unit, 6 verification rule storage unit, 7 plant data storage unit, 8 monitoring screen verification unit, 9 verification Result storage unit, 10 Monitoring screen verification device.

Claims (4)

A monitoring screen verification device for verifying the validity of a monitoring screen created based on a plant system drawing,
A monitoring screen storage for storing monitoring screen data;
A systematic drawing storage unit for storing data of the systematic drawing that is the basis of the monitoring screen;
A monitoring screen analysis unit for creating a first directed graph corresponding to the monitoring screen;
A systematic drawing analysis unit for creating a second directed graph corresponding to the systematic drawing;
A monitoring screen verification device comprising: a monitoring screen verification unit that verifies the validity of the monitoring screen by verifying the consistency between the first directed graph and the second directed graph. In view of the changes from the system diagram added at the time of creation of the monitoring screen, an analysis rule storage for storing an analysis rule that defines rules necessary for the monitoring screen analysis unit to create the first directed graph Further comprising
The monitoring screen verification device according to claim 1, wherein the monitoring screen analysis unit creates the first directed graph based on the analysis rule. In view of the changes from the system diagram added at the time of creation of the monitoring screen, a verification rule that is a rule that defines a difference that should be allowed between the first directed graph and the second directed graph is stored. A rule storage unit;
The monitoring screen verification device according to claim 1, wherein the monitoring screen verification unit verifies consistency between the first directed graph and the second directed graph based on the verification rule. The monitoring screen verification unit determines validity of the symbol on the monitoring screen corresponding to the vertex on the first directed graph depending on whether or not there is a vertex on the second directed graph corresponding to the vertex on the first directed graph. The monitoring screen verification device according to any one of claims 1 to 3, wherein

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