JP6878244B2 - Driving operation evaluation system - Google Patents

Description

The present invention relates to a driving operation evaluation technique .

In plant operation training, it is necessary to deal with all possible states including when the plant is abnormal, so a simulator that can reproduce all possible states of the plant is used.

In addition, plant operation training may be conducted in the presence of an instructor, or may be practiced by an operator alone. In the former case, the driving operation is evaluated by the instructor who is present by looking at the driving operation of the driver who receives the driving training. On the other hand, in the latter case, a system that automatically (without human intervention) evaluates the driving operation of the operator is required.

If there is a system that automatically evaluates the driver's driving operation (without human intervention), driving training and its evaluation will be possible even if the instructor is absent, and the operator will be bound by the instructor's schedule. Instead, you can voluntarily try to improve your driving skills.

As an example of a system that automatically evaluates the driving operation of such an operator, a system that evaluates the driving operation by considering the difference in operation time with respect to the driving operation of a skilled operator as a time factor has been proposed. ..

Japanese Patent No. 6045159 Japanese Unexamined Patent Publication No. 1-200281

The operation operation evaluation system evaluates the proficiency level of the operation operation in consideration of the difference in the operation time with respect to the operation time of the skilled operator, but does not evaluate the operation operation according to the behavior of the plant.

In plant operation training, it is necessary to prepare for a wide variety of situations, including events that rarely occur during normal plant operation, but the less frequently they occur, the more experience they have with the skilled operators. The difference in proficiency with shallow operators tends to be small. In the case of operation training for such an event that occurs infrequently, even if the difference from the operation time for the operation of a skilled operator is sufficiently small, it is objectively evaluated in consideration of the operation according to the behavior of the plant. As a result, it is possible that the target proficiency level has not been reached.

Therefore, in the conventional operation operation evaluation system that does not consider the operation operation according to the behavior of the plant, even if the operation operation is highly evaluated on the system, the operation operation according to the behavior of the plant is considered. When evaluated objectively, it is possible that the operation is not always appropriate for the behavior of the plant that has occurred. That is, the objectivity of the evaluation may not always be sufficient.

In addition, when evaluating the proficiency level of operation operations by considering the difference in operation time with respect to the operation operations of skilled operators without considering the operation operations according to the behavior of the plant, even if the operation operations are the same, the standard. The evaluation varies depending on which skilled operator is set as the driving operation, that is, how the operation time for the reference driving operation is set, and the objectivity of the evaluation is not always sufficient. It may not be.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a driving operation evaluation technique capable of more objectively evaluating an operator's operation.

The operation operation evaluation system according to the embodiment of the present invention is connected to a simulator that simulates the behavior of the plant in order to solve the above-mentioned problems, and indicates operation data indicating the contents of the operation operation and confirmation indicating confirmation of the information. Data acquisition means for acquiring operation data, condition data indicating conditions that are premised on the operation operation, and condition success / failure data indicating whether or not the condition is satisfied during the operation operation from the simulator, contents and procedures of the operation operation, and While referring to the operation evaluation logic including the item for confirming the state of the plant and the timing information as the reference information, the operation operation data, the confirmation operation data, the condition data and the condition success / failure data are obtained from the data acquisition means. An operation result evaluation means for evaluating the validity of the operation operation based on the content and procedure of the operation operation, the presence / absence and timing of confirmation of the information to be confirmed, the above-mentioned conditions and whether or not the above-mentioned conditions are satisfied. The operation result evaluation means includes operation evaluation logic including information indicating the conditions and the contents and procedures of the operation operations to be operated according to the success or failure of the conditions, and the items and timings for confirming the state of the plant. Is configured to set the referenced content as the reference, and further, the condition included in the operation evaluation logic, the content indicated by the information on whether or not the condition is satisfied, and the condition to be acquired. From the condition evaluation unit that evaluates the consistency between the data and the condition grasped from the condition success / failure data and the content of the success / failure of the condition, the content of the operation operation included in the operation evaluation logic, and the operation data to be acquired. The operation evaluation unit that evaluates the degree of consistency with the grasped operation operation content, the content indicated by the item and timing information for confirming the state of the plant included in the operation evaluation logic, and the confirmation operation to be acquired. A confirmation evaluation unit that evaluates the degree of consistency with the confirmation items and timing contents grasped from the data, and an operation transition time evaluation unit that measures and evaluates the time required from the confirmation of the above conditions to the appropriate operation. , Confirmation completion time evaluation that measures and evaluates the time required from the confirmation of the conditions to the confirmation of the transition to the target state from the start of the operation to shift the state of the plant to the target state. Comprehensive evaluation in consideration of the evaluation results of each of the condition evaluation unit, the operation operation evaluation unit, the confirmation evaluation unit, the operation transition time evaluation unit, and the confirmation completion time evaluation unit. It is characterized by having a worthy comprehensive evaluation department.

According to the embodiment of the present invention, the operation of the operator can be evaluated more objectively.

The schematic diagram which shows schematic the structure of the operation operation evaluation system which concerns on embodiment. The schematic diagram which shows roughly the structure of the operation result evaluation means provided in the operation operation evaluation system which concerns on embodiment. The flow chart which shows the flow of the processing step of the driving operation evaluation processing procedure performed by the driving operation evaluation system which concerns on embodiment. The flow chart which shows the flow of the processing step of the operation result evaluation process which the operation result evaluation means (comprehensive evaluation unit) in the operation operation evaluation system which concerns on embodiment calculates the total score. A flow chart showing a part of the work (operation operation) required of an operator when a power supply is lost, which is an example of an event that can occur in a plant. The explanatory view explaining an example of the evaluation value in the condition evaluation part provided with the driving result evaluation means in the driving operation evaluation system which concerns on embodiment. The explanatory view explaining an example of the evaluation value in the operation content evaluation part provided with the operation result evaluation means in the operation operation evaluation system which concerns on embodiment. The explanatory view explaining an example of the evaluation value in the confirmation evaluation part provided with the operation result evaluation means in the operation operation evaluation system which concerns on embodiment. The explanatory view which shows an example of the plant state quantity displayed in the simulator connected to the operation operation evaluation system which concerns on embodiment. An explanatory diagram illustrating an example of an evaluation function in the operation transition time evaluation unit and the confirmation completion time evaluation unit included in the operation result evaluation means in the operation operation evaluation system according to the embodiment.

Hereinafter, the driving operation evaluation system and the driving operation evaluation method according to the embodiment of the present invention will be described with reference to the accompanying drawings.

FIG. 1 is a schematic view schematically showing the configuration of a driving operation evaluation system 10 which is an example of a driving operation evaluation system according to an embodiment.

The operation operation evaluation system 10 (FIG. 1) shows, for example, operation operation data indicating the contents of the operation operation, confirmation operation data indicating confirmation of information, and preconditions for the operation operation from the simulator 1 simulating the behavior of the plant. While acquiring the condition data and the condition success / failure data indicating whether or not the condition that is the premise of the driving operation is satisfied at the time of the driving operation, the validity of the driving operation input in the simulator 1 is determined based on a preset standard. It is a system for objective evaluation.

The simulator 1 includes, for example, an input means for receiving information input and an output means for outputting information, a control panel 2 as an input / output interface operated by an operator, and a simulation means 3 for simulating the behavior of a plant. It is composed of. The control panel 2 is, for example, an actual machine assuming an actual machine, and is provided with a voice recognition means 4 having a voice recognition function.

The input / output interface of the simulator 1 is not necessarily limited to the actual control panel 2 assuming an actual machine, and various input / output interfaces can be applied.

The driving operation evaluation system 10 is configured to be connected to the simulator 1 so as to be able to exchange information, and to be able to acquire information such as driving operation data necessary for evaluating the driving operation from the simulator 1. Further, the driving operation evaluation system 10 is connected to a display device 5 as a display means which is an example of an output means for outputting information, and is configured to be able to display information such as a calculation result in the driving operation evaluation system 10. ..

The operation evaluation system 10 is, for example, a computer as a hardware resource including a processor such as a CPU (Central Processing Unit) and a storage device having a storage circuit such as a ROM (Read-Only Memory) and a RAM (Random-Access Memory). The driving operation evaluation program (hereinafter, the program is abbreviated as "PG" and is referred to as "driving operation evaluation PG"), which is software that realizes the function of evaluating the validity of the driving operation on the computer based on the preset criteria. It is realized by the cooperation with.).

In other words, the driving operation evaluation PG is a program that causes a computer to execute a processing procedure (hereinafter, referred to as "driving operation evaluation processing procedure") for evaluating the validity of a driving operation based on a preset standard. .. By executing the driving evaluation PG, the driving operation evaluation system 10 provided with specific means for executing the driving operation evaluation processing procedure in the computer is realized.

To explain a more specific configuration example, the driving operation evaluation system 10 includes, for example, a data acquisition means 11, a driving result evaluation means 12, an evaluation aggregation means 13, an evaluation analysis means 14, and a logic analysis means 15. , And storage means 16. The storage means 16 holds a driving evaluation logic 21 including information (hereinafter, referred to as “reference information”) that serves as an evaluation standard for evaluating the validity of the driving operation.

The data acquisition means 11 has a function of acquiring data from the simulator 1. The data acquisition means 11 satisfies the driving operation data indicating the content of the driving operation, the confirmation operation data indicating the confirmation of the information, the condition data indicating the conditions premised on the driving operation, and the conditions premised on the driving operation during the driving operation. Conditional success / failure data indicating whether or not the condition is satisfied is acquired from the simulator 1 and transmitted to the operation result evaluation means 12.

The driving result evaluation means 12 has a data acquisition function, an element point calculation function for scoring a predetermined element of the driving result, and a total score calculation function for calculating the total score by comprehensively considering the score of each element. Have.

The operation result evaluation means 12 refers to the operation evaluation logic 21 to acquire reference information including the contents and procedures of the operation operation and the items and timing information for confirming the state of the plant, while the operation operation data and the confirmation operation. The data, the condition data, and the condition success / failure data are received from the data acquisition means 11, and the validity of the driving operation is determined in consideration of the consistency between the input contents of the driving operation and the contents indicated by the reference reference information.

The operation result evaluation means 12 determines the content and procedure of the operation operation, the presence / absence and timing of confirmation of the information to be confirmed, the preconditions for the operation operation, and whether or not the conditions are satisfied, and performs the operation operation. When the validity of the above is evaluated, the evaluation result is transmitted to the evaluation aggregation means 13. Further, the operation result evaluation means 12 transmits the evaluation result to the simulator 1 (simulation means 3) and the display device 5 as needed.

The evaluation totaling means 13 has a function of receiving and totaling the evaluation results by the operation result evaluation means 12, and transmits the totaling results to the evaluation analysis means 14. Further, the evaluation aggregation means 13 transmits the aggregation result to the display device 5 or stores the aggregation result in an accessible storage area such as the storage means 16 as necessary.

The evaluation analysis means 14 has a function of receiving the aggregation result by the evaluation aggregation means 13 and analyzing the aggregation result, and transmits the analysis result of the aggregation result to the logic analysis means 15. Further, the evaluation analysis means 14 transmits the evaluation analysis means 14 to the simulator 1 (simulation means 3) or the display device 5 as necessary, or stores the evaluation analysis means 14 in an accessible storage area such as the storage means 16.

The logic analysis means 15 receives the analysis result by the evaluation analysis means 14, and analyzes the relationship between the evaluation analysis result and the item giving reference information such as the content and procedure of the driving operation included in the operation evaluation logic 21. And, it has a function to identify items that are highly related to the analysis result of the evaluation. That is, the logic analysis means 15 analyzes the level of relevance to the evaluation result for each item that gives reference information to the operation evaluation logic 21, and identifies an item having a high relevance, that is, an item having a large influence. ..

The storage means 16 includes a storage area capable of reading (reading) and writing (writing) information, and has a function of holding information in the storage area. The storage means 16 provides a storage area in which information can be read and written to the data acquisition means 11, the operation result evaluation means 12, the evaluation aggregation means 13, the evaluation analysis means 14, and the logic analysis means 15, and each process is performed. Information necessary for execution is read (read) and written (written).

The operation evaluation logic 21 confirms the event simulated by the simulator 1, the conditions that are the premise of the operation operation when the event occurs, the content and procedure of the operation operation to be operated according to the success or failure of the condition, and the state of the plant. It has reference information including information on items to be and timing. An example of the reference information will be described later in FIG. 5, for example.

The driving operation evaluation system 10 is not limited to the configuration shown in FIG. 1, and is capable of acquiring at least data such as driving operation data, confirmation operation data, condition data, and condition success / failure data, and reference information. It suffices if the result evaluation means 12 is provided.

That is, the data acquisition means 11, the evaluation aggregation means 13, the evaluation analysis means 14, and the logic analysis means 15 are arbitrary components, and the driving operation evaluation system 10 does not necessarily have to include them. These arbitrary components can be provided in an external device of the driving operation evaluation system 10 or omitted if unnecessary to construct the driving operation evaluation system 10.

Further, the driving evaluation logic 21 does not necessarily have to be held in the driving operation evaluation system 10. When an accessible storage area other than the storage means 16 exists in the external device, the operation evaluation logic 21 may be held in the storage area.

Further, the simulator 1 and the driving operation evaluation system 10 may be integrated without being separated. That is, the function of the driving operation evaluation system 10 described above may be implemented in the simulator 1 to construct a simulator 1 capable of evaluating the driving operation having the function.

Subsequently, the operation result evaluation means 12 will be described more specifically.
FIG. 2 is a schematic view schematically showing the configuration of the operation result evaluation means 12 included in the operation operation evaluation system 10.

The driving result evaluation means 12 evaluates the driving operation elements set by the user in advance for each of the elements, and evaluates the validity of the driving operation by comprehensively considering each driving operation element. The element evaluation unit that evaluates the driving operation elements set by the user in advance for the driving operation for each driving operation element, and the comprehensive evaluation that comprehensively evaluates each driving operation element in consideration of the driving operation elements. It has a part.

The operation result evaluation means 12 illustrated in FIG. 2 has a configuration in which the conditions that are the premise of the operation operation, the operation content of the operator, the required confirmation items, the operation transition time, and the confirmation completion time are set as individual operation operation elements. This is an example.

That is, the operation result evaluation means 12 exemplified in FIG. 2 includes a condition evaluation unit 12a, an operation content evaluation unit 12b, a confirmation evaluation unit 12c, an operation transition time evaluation unit 12d, and a confirmation completion time evaluation unit 12e as element evaluation units. In addition, it is equipped with a comprehensive evaluation unit 12f that comprehensively evaluates each element in consideration of them.

The condition evaluation unit 12a sets the condition that is the premise of the driving operation as one of the driving operation elements, and obtains an evaluation value (hereinafter, referred to as "condition element evaluation value") in which the evaluation for the element is quantified. Evaluate the validity of the driving operation in terms of the conditions that are the prerequisites for the driving operation.

Here, for the condition element evaluation value, for example, an evaluation value determination process for obtaining a numerical value associated with a degree of satisfaction indicating how much the condition is satisfied with respect to the condition that is a premise of the driving operation is executed. It is required by doing.

Satisfaction is the number (matching number) or ratio (matching rate) that matches the condition that is the premise of the driving operation with respect to the standard condition, or the number of matching or matching rate is weighted considering the importance of the condition. It is possible to adopt a correction value (correction matching number, correction matching rate) and the like in consideration.

Further, as the evaluation value determination process for obtaining the evaluation value from the satisfaction level, for example, an arithmetic process using the satisfaction level or a table reference process for obtaining one numerical value associated with the satisfaction level by referring to a predetermined table. And so on. The arithmetic processing includes various arithmetic processing using satisfaction.

The arithmetic processing includes, for example, a mathematical calculation process for calculating an evaluation value calculation formula defined by including the desired satisfaction in a term, a additive average of the satisfaction obtained for each condition, a weighted average (weighted average), and the like. Statistical processing to obtain representative values such as various average values such as synergistic averages, mode values, maximum values, and minimum values, and logic such as satisfaction of each condition and logical product (AND) and logical sum (OR) between the conditions. It includes various arithmetic processes using the desired satisfaction level, such as arithmetic operations or combinations thereof. A specific example of the evaluation value obtained by adopting some of these arithmetic processes will be described later in FIG.

The condition evaluation unit 12a includes driving operation data as information indicating the content of the driving operation, condition data as information indicating conditions that are premised on the driving operation, and whether or not the condition is satisfied (the condition). The condition success / failure data and the condition success / failure data are acquired from the data acquisition means 11 as information indicating the success / failure of Obtained as reference information.
Subsequently, the condition evaluation unit 12a obtains the satisfaction level, obtains the condition element evaluation value based on the result of the obtained satisfaction level, and evaluates the validity of the driving operation from the aspect of the conditions that are the premise of the driving operation.

The operation content evaluation unit 12b uses the driver's driving operation content as one of the driving operation elements, and obtains an evaluation value obtained by quantifying the evaluation of the driving operation element, thereby inputting the driver's driving operation content aspect. Evaluate the validity of the driving operation from.
The evaluation value for the driving operation content of the operator is calculated in the same manner as the condition element evaluation value calculated by the condition evaluation unit 12a (FIG. 7).

The operation content evaluation unit 12b is the operator's operation (to simulator 1) necessary for the operation of the plant, such as the content of the operation operation indicated by the data, the operation procedure, the item for which the state of the plant should be confirmed, and the confirmation timing of the item. While acquiring the information of the input operation) from the data acquisition means 11, the operation of the operator required in the state of the plant reproduced by the simulator 1 is acquired as the reference information by referring to the operation evaluation logic 21.
Subsequently, the operation content evaluation unit 12b obtains a degree of satisfaction with the required operation of the operator, obtains an evaluation value for the operation content of the operator based on the result of the obtained satisfaction, and starts the operation of the plant. Evaluate the adequacy of driving operations in terms of required operator movements.

The confirmation evaluation unit 12c sets the item that needs to be confirmed (hereinafter referred to as “confirmation essential item”) among the information such as the plant state amount that changes depending on the operation of the operator as one of the operation operation elements, and performs the operation. By obtaining an evaluation value that quantifies the evaluation of the operation element, the validity of the driving operation is evaluated from the aspect of the required confirmation items.
The evaluation value for the required confirmation items is calculated in the same manner as the condition element evaluation value (FIG. 8).

The confirmation evaluation unit 12c acquires confirmation operation data from the data acquisition means 11 as information indicating that the confirmation operation has been performed to the effect that the operator has confirmed the plant information output to the simulator 1, while operating. The information of the confirmation essential items acquired by referring to the evaluation logic 21 is acquired as the reference information.
Subsequently, the confirmation evaluation unit 12c obtains a satisfaction level indicating how much the confirmation item indicated by the confirmation operation data matches (satisfies) with the confirmation essential item, and confirmation is required based on the result of the obtained satisfaction level. Obtain the evaluation value for the item and evaluate the validity of the driving operation from the aspect of the required confirmation items.

The operation transition time evaluation unit 12d has, for example, a function of measuring the time required from confirming the conditions that are the premise of the driving operation until the appropriate operation is performed (hereinafter, referred to as “operation transition time”). It has a function to evaluate the driving operation from the viewpoint of the operation transition time based on the measurement result.

The operation transition time evaluation unit 12d evaluates the validity of the driving operation from the viewpoint of the operation transition time by obtaining an evaluation value obtained by quantifying the evaluation of the driving operation element with the operation transition time as one of the driving operation elements. To do.

For the evaluation value for the operation transition time, for example, an evaluation function that gives an evaluation value for the operation transition time is defined, the evaluation value is calculated from this evaluation function and the measured operation transition time, or the operation transition time and the evaluation value are calculated. It is obtained by performing table reference processing or the like that obtains one numerical value associated with the operation transition time by referring to the associated table.

Confirmation completion time The evaluation unit 12e confirms the conditions that are the prerequisites for the operation operation, starts the operation to shift the plant state to the target state, and confirms the transition to the target state. It has a function to measure the required time (hereinafter referred to as "confirmation completion time") and a function to evaluate the driving operation from the viewpoint of the confirmation completion time based on the measurement result.

The confirmation completion time evaluation unit 12e evaluates the validity of the operation operation from the aspect of the confirmation completion time by obtaining an evaluation value in which the evaluation for the operation operation element is quantified by using the confirmation completion time as one of the operation operation elements. To do. The evaluation value for the confirmation completion time is obtained in the same manner as the evaluation value for the operation transition time obtained by the operation transition time evaluation unit 12d.

The comprehensive evaluation unit 12f is set with a function of acquiring necessary evaluation results from each of the condition evaluation unit 12a, the operation content evaluation unit 12b, the confirmation evaluation unit 12c, the operation transition time evaluation unit 12d, and the confirmation completion time evaluation unit 12e. It has a function to calculate the total score by integrating the evaluation results acquired according to the score calculation standard.

The comprehensive evaluation unit 12f determines the evaluation results required for calculating the total score according to the score calculation criteria: the condition evaluation unit 12a, the operation content evaluation unit 12b, the confirmation evaluation unit 12c, the operation transition time evaluation unit 12d, and the confirmation completion time evaluation unit 12e. Obtain from any of the above, and use the obtained evaluation results to obtain the total score. The comprehensive evaluation unit 12f quantifies and evaluates the validity of the operation result from a comprehensive viewpoint by obtaining the total score using the evaluation values of each element.

The score calculation standard is, for example, to calculate the total score using the evaluation results evaluated by the condition evaluation unit 12a, the operation content evaluation unit 12b, the confirmation evaluation unit 12c, the operation transition time evaluation unit 12d, and the confirmation completion time evaluation unit 12e. Information. As information for calculating the total score, for example, a calculation formula for simply adding the evaluation values which are the evaluation results of each evaluation unit 12a to 12e to obtain the total, and weighting each evaluation value. There is a calculation formula to be added, a table that defines the relationship between the calculated value calculated using each evaluation value such as each evaluation value or the total value of each evaluation value, and the total score.

When the comprehensive evaluation unit 12f obtains the total score according to the score calculation standard, the comprehensive evaluation unit 12f transmits the total score to the evaluation totaling means 13. Further, the obtained total points are transmitted to the simulation means 3 and the display device 5 as needed.

Subsequently, the operation operation evaluation processing procedure performed by the operation operation evaluation system 10 and the operation result evaluation process included in the operation operation evaluation processing procedure will be described by showing specific examples of events that can occur in the plant and required operation operations.

FIG. 3 is a flow chart showing the flow of processing steps of the driving operation evaluation processing procedure performed by the driving operation evaluation system 10.

The operation operation evaluation processing procedure includes, for example, a data acquisition process (step S1), an operation result evaluation process (step S2), an evaluation aggregation process (step S3), an evaluation analysis process (step S4), and a logic analysis process (step S4). Step S5) and.

In the operation operation evaluation processing procedure, when the processing procedure is started (START), the data acquisition step (step S1) is first performed, and then the operation result evaluation step (step S2), the evaluation aggregation step (step S3), and so on. The evaluation analysis step (step S4) and the logic analysis step (step S5) are performed. Then, when all the processing steps to be performed are completed (YES in step S6), the processing procedure ends (END).

The data acquisition step (step S1) is a processing step of acquiring data such as operation operation data, confirmation operation data, condition data, and condition success / failure data from the simulator 1. The data acquired in this processing step is acquired, for example, by accessing the data acquisition means 11 having a data acquisition function or an external device, or by directly receiving the data from the simulator 1.

In the operation result evaluation step (step S2), the operation result evaluation means 12 satisfies the content and procedure of the operation operation, the presence / absence and timing of confirmation of the information to be confirmed, the precondition conditions for the operation operation, and the conditions. This is a processing process in which it is determined whether or not the vehicle is present, and the content of the determination is compared with the evaluation criteria to evaluate the validity of the driving operation. More detailed contents will be described later (Fig. 4).

The evaluation aggregation step (step S3) is a processing step in which the evaluation aggregation means 13 aggregates the evaluation results evaluated in the operation result evaluation step. The aggregated result of the evaluation result is used in the subsequent evaluation analysis step (step S4).

The evaluation analysis step (step S4) is a processing step in which the evaluation analysis means 14 analyzes the evaluation results aggregated in the evaluation aggregation step. The analysis result of the evaluation result is used in the subsequent logic analysis step (step S5).

Evaluation results are analyzed, for example, by statistically processing the aggregated results to obtain numerical values for statistical indicators such as mean, variance, and standard deviation, and the feature points and feature patterns that appear when the aggregated results are distributed. There are a feature extraction process for extracting the feature items of the above, a failure factor estimation process for estimating the failure factor by evaluating the items with a high failure frequency and the plant parameters with a high correlation, and the like. The analysis of the evaluation results is useful as an index for objectively judging the level of driving operation.

The result of statistical processing for obtaining a numerical value for a statistical index can be used, for example, as information for judging whether or not the result is good when compared with the result of one's own past driving operation or another operator.

As a feature extraction process, for example, when frequency analysis of failure occurrence items in operations and confirmations is performed from the driving operation results (past driving history) aggregated so far, caution is required because the failure frequency is high for each driving training target event. Operations and confirmation items can be extracted as feature items, and operations and confirmation items that require special attention can be clarified. In this case, the result of the feature extraction process is transmitted to the simulator 1 (FIG. 1) to the effect that, for example, when the operator during the driving training fails in the operation or the like, the operation or the like is an operation or the like that requires special attention. It can be displayed in real time (during simulation).

The failure factor estimation is performed, for example, by applying data mining to the evaluation result of the driving operation including the operation failure and the confirmation failure. Data mining makes it possible to categorize failures and discover unknown regularities. The result of the failure factor estimation process is, for example, information such as clarifying operations and confirmation items that require special attention to the operator, and clarifying points on the control panel of the actual machine that require improvement in driving operability. Can be used as.

The logic analysis step (step S5) is a processing step of performing logic analysis for identifying a portion having a large influence on the operation evaluation logic 21 which is an evaluation standard from the analysis result analyzed in the evaluation analysis step.

The result of the logic analysis is based on the contents of the operation evaluation logic 21, such as modifying the evaluation function that gives the evaluation value for the operation transition time and the confirmation completion time, and modifying the confirmation order of the confirmation items in the operation procedure. It can be used as information for improvement so that an evaluation result of an appropriate operation result can be obtained.

The operation operation evaluation processing procedure (steps S1 to S6) described above is not limited to the processing flow exemplified in FIG. 3, and is at least a data acquisition step (step S1) and an operation result evaluation process (step S2). ) Should be done. That is, the logic analysis step (step S5), the evaluation analysis step (step S4), the logic analysis step (step S5), and the logic analysis step (step S5), depending on the function of the operation evaluation system 10 and the necessity of executing the processing process. The evaluation aggregation step (step S3), the evaluation analysis step (step S4), and the logic analysis step (step S5) may be omitted.

FIG. 4 is a flow chart showing the flow of processing steps in the operation result evaluation step (step S2: FIG. 3) in which the operation result evaluation means 12 (comprehensive evaluation unit 12f) calculates the total score.

In the operation result evaluation step (steps S21 to S24), the operation result evaluation means 12 acquires data including, for example, operation operation data, confirmation operation data, condition data, and condition success / failure data, and obtains data including the contents and information of the operation operation. A step of grasping the presence / absence of confirmation, the condition and whether or not the condition is satisfied (first grasping step: step S21), and a driving evaluation logic to be referred to by referring to the driving evaluation logic given as reference information (first grasping step: step S21). The step of grasping the content and procedure of the driving operation according to the reference information), the presence / absence of confirmation of the information to be confirmed, and the timing of confirmation (second grasp step: step S22), and the first and second grasp steps (step). Based on the grasped results of S21 and S22), a step of obtaining an evaluation value for an individual driving operation element (hereinafter referred to as an “element-specific evaluation value acquisition step”) (step S23) and an evaluation of the individual driving operation element. It includes a step (step S24) of obtaining a total score using the value and evaluating the validity of the driving operation.

When the operation result evaluation step is started (ENTER), the operation result evaluation means 12 (FIG. 1) performs the first and second grasping steps (steps S21 and S22), and the first and second obtained. Based on the grasping result of the grasping step, an evaluation value is obtained for each driving operation element (step S23), and a total score indicating a comprehensive evaluation is obtained using the obtained evaluation value of the driving operation element (step S24).

In the operation result evaluation step, an example in which the second grasping step (step S22) is performed following the first grasping step (step S21) has been described, but the first and second grasping steps (steps S21 and S21) have been described. S22) may be completed before the step (step S23) of obtaining an evaluation value for each driving operation element, and the timing thereof is arbitrary. That is, in the operation result evaluation step, the second grasping step may be performed prior to the first grasping step, or may be performed at the same time (in parallel).

Subsequently, a case where an event illustrated in FIG. 5 to be described later occurs, and a case where individual driving operation elements included in the driving result evaluation means 12 (FIG. 2) obtain each evaluation value is taken as an example. The element-based evaluation value acquisition step (step S23) will be described more specifically.

FIG. 5 is a flow chart showing a part of the work (operation operation) flow required of the operator at the time of power loss, which is an example of an event that can occur in the plant.

Here, as a precondition, it is assumed that the event that the power supply is lost (premise Pr1) and the water supply pump operates and water can be supplied in the furnace (premise Pr2) is established. That is, the flow chart illustrated in FIG. 5 is an example of the reference information possessed by the operation evaluation logic 21, and is the reference information that gives the reference of the operation operation assuming the situation where the water supply in the furnace can be adopted as a countermeasure when the power supply is lost. Is.

Under the above preconditions, as the work (operation operation) required of the operator when the power supply is lost, it is first necessary to secure the power supply (step S101), and if the power supply can be secured (YES in step S102). , The power supply source is switched from the lost (normal) power supply to the secured (emergency) power supply (step S103). Subsequently, the operation of the water supply pump and the water level in the furnace are confirmed to perform the depressurization operation in the furnace (step S104), and after confirming that there is no problem in performing the decompression operation in the furnace (step S105). If YES), the decompression operation in the furnace is performed (step S106). After the depressurization operation is completed (YES in step S107), the operation of water injection into the furnace is performed (step S108), and the operation of the operator is performed.

In the example shown in FIG. 5, since the preconditions Pr1 and Pr2 are satisfied, the required operation operations are a depressurization operation in the furnace (step S106), a water injection operation into the furnace (step S108), and the like. As a prerequisite for performing the depressurization operation in the furnace (step S106) and the water injection operation in the furnace (step S108), the level at which the water supply pump operates and the water level in the furnace is indicated is, for example, level 1 (water level). It is necessary to have a predetermined level such as low).

Therefore, the condition evaluation unit 12a (FIG. 2) obtains the satisfaction level for the condition on the condition that the water supply pump operates and the level indicating the water level in the furnace is a predetermined level, and the obtained satisfaction level is obtained. The condition element evaluation value is obtained using the degree.

Further, the operation content evaluation unit 12b (FIG. 2) obtains satisfaction with the depressurization operation in the furnace (step S106) and the water injection operation into the furnace (step S108), and obtains an evaluation value using the obtained satisfaction. ..

In the confirmation evaluation unit 12c (FIG. 2), the pressure inside the furnace and the water level inside the furnace, which are the plant state quantities that change due to the depressurization operation in the furnace (step S106) and the water injection operation into the furnace (step S108), are essential items for confirmation. Yes, the satisfaction level for the required confirmation item is obtained, and the evaluation value is obtained using the obtained satisfaction level.

6 to 8 are explanatory views for explaining an example of evaluation in the element evaluation unit that evaluates individual driving operation elements in the driving operation evaluation system 10, and FIGS. 6 are the condition evaluation unit 12a (FIG. 2) and FIG. 7 is an explanatory diagram for explaining an example of the evaluation value in the operation content evaluation unit 12b (FIG. 2) and FIG. 8 for the confirmation evaluation unit 12c (FIG. 2).

The evaluation value #n (n is an integer of 1 to 4) shown in FIG. 6 means the nth evaluation value which is the evaluation value obtained by performing the nth evaluation value determination process.

In order to obtain the evaluation value of the condition evaluation unit 12a (FIG. 6), in order for the condition of "the water supply pump is operating" illustrated in FIG. 5 to be satisfied, more specifically, "the operating state of the water supply pump". It is necessary that the indicator light is lit (first condition) and that the outlet pressure of the water supply pump is equal to or higher than a predetermined value (second condition).
Therefore, in order to satisfy the condition that "the water supply pump operates and the level indicating the water level in the furnace is the water level level 1", in addition to the first condition and the second condition, the furnace is further satisfied. It is necessary to satisfy the three conditions of the first condition to the third condition, which is the addition of "the water level is level 1" (third condition).

For the first to fourth evaluation values (evaluation values # 1 to # 4: FIG. 6) shown in FIG. 6, the arithmetic mean of the satisfactions obtained by the evaluation value determination process for each condition is obtained. In the case of arithmetic processing, in the case of arithmetic processing for obtaining a weighted average (weighted average) of satisfaction obtained for each condition, in the case of arithmetic processing for obtaining the satisfaction for each condition and the logical sum (OR) between the conditions. In some cases, it is a condition element evaluation value obtained in the case of arithmetic processing for obtaining the satisfaction level for each condition and the logical product (AND) between the conditions.

In the first to fourth evaluation values shown in FIG. 6, the satisfaction levels of the first to third conditions are, for example, 100%, 0%, and 100%, respectively, in terms of matching rate, which are the same. However, since the content of the evaluation value determination process is different, the finally obtained evaluation value is different.

The first evaluation value (evaluation value # 1: FIG. 6) is obtained by calculating the arithmetic mean (100% + 0% + 100%) / 3 of the satisfaction of each of the first to third conditions, and is about 67. %become.

The second evaluation value (evaluation value # 2: FIG. 6) is an arithmetic process for obtaining a weighted average (weighted average) of satisfaction obtained for each condition as an evaluation value determination process, and is the first to third evaluation values. It is an evaluation value obtained when the weighting ratio for each condition of is 1: 1: 2. In this case, the second evaluation value is obtained by calculating (0.25 × 100% + 0.25 × 0% + 0.50 × 100%) and becomes 75%.

The third evaluation value (evaluation value # 3: FIG. 6) is an arithmetic process for obtaining the satisfaction level for each condition and the logical sum (OR) between the conditions as the evaluation value determination process. In this case, the third evaluation value is 100%.

The fourth evaluation value (evaluation value # 4: FIG. 6) is an arithmetic process for obtaining the satisfaction level for each condition and the logical product (AND) between the conditions as the evaluation value determination process. In this case, the fourth evaluation value is 0%.

In the operation content evaluation unit 12b (FIG. 2), as the first operation and the second operation shown in FIG. 7, the “safety valve” is a specific operation operation for performing a depressurization operation (step S106: FIG. 5) in the furnace. It is necessary to perform a specific operation operation for "opening the valve (opening)" and injecting water into the furnace (step S108: FIG. 5). The operation content evaluation unit 12b obtains the satisfaction level for the first operation and the second operation, and obtains an evaluation value using the obtained satisfaction level.

As shown in FIG. 7, when the satisfaction with the first operation and the second operation is, for example, 100% in the matching rate, the evaluation value is 100%.

In the confirmation evaluation unit 12c (FIG. 2), as the first confirmation item shown in FIG. 8, the in-core pressure that changes due to the depressurization operation in the furnace (step S106: FIG. 5), that is, the decrease in the in-core pressure is confirmed. As the second confirmation item, it is necessary to confirm the water level in the furnace, that is, the water injection into the furnace, which changes due to the water injection operation into the furnace (step S108: FIG. 5). The confirmation evaluation unit 12c obtains the satisfaction level for the first confirmation item and the second confirmation item, and obtains an evaluation value using the obtained satisfaction level.

Here, some examples of the confirmation method (confirmation operation) for the confirmation items performed by the operator will be described.

FIG. 9 is an explanatory diagram showing an example of a plant state quantity displayed on the simulator 1 connected to the operation operation evaluation system 10.

The display means built into the control panel 2 displays the plant state quantity according to the plant event simulated by the simulator 1. The display includes, for example, a plant state quantity image 6 showing time changes of pressure P (solid line f1) and water level D (broken line f2), which are examples of plant state quantities.

For confirmation of the plant state quantity, for example, the operator visually checks the solid line f1 indicating the time transition of the pressure P and the broken line f2 indicating the time transition of the water level D. In order for the evaluation system 10 to recognize it, it is necessary to input to the driving operation evaluation system 10 that the operator has confirmed it.

As an example of inputting to the operation operation evaluation system 10 that the operator has confirmed, in addition to the plant state quantity image 6 exemplified in FIG. 9, the plant state quantity in the plant status quantity image 6 satisfies a predetermined condition. Confirmation buttons 7a and 7b for outputting the confirmation to the operation evaluation system 10 are provided, and when the control panel 2 (FIG. 1) is provided with the voice recognition means 4, the voice recognition means 4 is used. There is an example of using voice input.

For example, for the first confirmation item and the second confirmation item exemplified in FIG. 8, the contents to be confirmed were confirmed by pressing the confirmation button 7a for the pressure P and the confirmation button 7b for the water level D, respectively. This is output to the driving operation evaluation system 10.

When the display means displays and confirms the desired information, the screen is expanded to display the desired information, so that the signal may be used as a signal indicating that the signal associated with the screen expansion has been confirmed.

Further, the confirmation buttons 7a and 7b are set for each plant state quantity of the pressure P and the water level D in the operation operation evaluation system 10 illustrated in FIG. 9, but they do not necessarily have to be set individually. , One confirmation button may be set in a unit that summarizes some.

In the example shown in FIG. 9, among the confirmation buttons 7a and 7b, the confirmation button 7a is omitted, the remaining confirmation button 7b is used as one confirmation button 7, and the confirmation button 7 is used to determine the pressure P and the water level D. It may be set to accept confirmation of both confirmation items.

Next, for the operation transition time evaluation unit 12d (FIG. 2) and the confirmation completion time evaluation unit 12e (FIG. 2), which are element evaluation units having time as the operation operation element, for example, the operation transition time which is the measurement result of each. And it is calculated from the confirmation completion time and the set evaluation function.

FIG. 10 is an explanatory diagram illustrating an example of an evaluation function in the operation transition time evaluation unit 12d (FIG. 2) and the confirmation completion time evaluation unit 12e (FIG. 2) included in the operation result evaluation means 12.

It is preferable that the operation transition time and the confirmation completion time are as fast as possible (short time), but it is considered that there is no problem in operation if the operation is performed promptly to some extent. The evaluation function Fe shown in FIG. 10 is an example of an evaluation function in consideration of such circumstances.

The evaluation function Fe exemplified in FIG. 10 is a function that defines the relationship of the evaluation value E (0 ≦ E ≦ 1) with respect to the time t indicating the operation transition time or the confirmation completion time, and the time t = 0 to t = t1. If it is less than, the evaluation value E is 1 (maximum value), and if it is less than t = t2 after the time t = t1, the evaluation value E is E = 0 (zero) at a constant ratio (1 / t1-t2) with the passage of time. ) (T = t2), and thereafter (after t = t2), the evaluation value E is a function that takes a constant value of E = 0.

As described above, according to the driving operation evaluation system 10 and the driving operation evaluation method using the driving operation evaluation system 10, the driving is performed in consideration of the conditions that are the prerequisites for the driving operation of the operator and whether or not the conditions are satisfied. The operation evaluation system 10 objectively evaluates whether or not an appropriate driving operation is performed at an appropriate timing. More specifically, the evaluation value is obtained for each evaluation element for evaluating the content of the driving operation, and the total score is obtained from the evaluated value for each evaluated element, so that the operation content of the operator can be viewed more objectively. It is possible to evaluate the driving operation by scoring (quantifying) it.

Therefore, by applying the driving operation evaluation system 10 and the driving operation evaluation method using the driving operation evaluation system 10, it is possible to provide uniform and highly reliable driving training. In addition, even if the instructor is absent, the driving training can be evaluated objectively, so that the operator can work on the driving training without being bound by the instructor's schedule, and can voluntarily develop the driving skill. You can try to improve.

Further, in the driving operation evaluation system 10 capable of exchanging information with the simulator 1 to and from each other, the calculation result in the driving operation evaluation system 10 can be reflected in the simulation, and as the simulation event progresses, the conditions that are the prerequisites for the driving operation. It is possible to provide the simulator 1 with information such as the operation contents of the operator, required items for confirmation, operation transition time, and confirmation completion time. In the driving operation evaluation system 10 which can exchange information with the simulator 1 and includes the evaluation analysis means 14, the analysis result of the evaluation result can also be provided to the simulator 1.

Further, according to the driving operation evaluation system 10 including the evaluation analysis means 14 and the driving operation evaluation method using the driving operation evaluation system 10, the index for objectively determining the level of the driving operation and the driving according to the index. An objective level of operation can be provided to the user. In addition, it is possible to provide the user with information such as clarifying operations and confirmation items that require special attention to the operator, and clarifying points on the control panel of the actual machine that require improvement in driving operability. ..

According to the driving operation evaluation system 10 including the logic analysis means 15 and the driving operation evaluation method using the driving operation evaluation system 10, a part having a large influence on the driving evaluation logic 21 as an evaluation standard is specified. Therefore, for example, the content of the operation evaluation logic 21 is more appropriate, such as modifying the evaluation function that gives the evaluation value for the operation transition time and the confirmation completion time, and modifying the confirmation order of the confirmation items in the operation procedure. It is possible to provide the user with information for improvement so that the evaluation result of the operation result can be obtained.

The "processor" described in the above-described embodiment is, for example, a dedicated or general-purpose CPU, a GPU (Graphics Processing Unit), an application specific integrated circuit (ASIC), or a programmable logic device (for example, a programmable logic device). Arithmetic processing circuit that can execute programs such as Simple Programmable Logic Device (SPLD), Complex Programmable Logic Device (CPLD), and Field Programmable Gate Array (FPGA). Means. The processor realizes various functions by reading and executing a program stored in a storage circuit.

Further, instead of storing the program in the program in the storage circuit, the program may be directly incorporated in the circuit constituting the processor. In this case, the processor realizes various functions by reading and executing a program embedded in the circuit.

Further, a plurality of independent processors may be combined to form an arithmetic processing circuit capable of executing a program, and each processor may execute the program to realize each function. When a plurality of processors are provided, a storage circuit for storing programs may be provided individually for each processor, or several programs corresponding to the functions of the plurality of processors may be collectively provided.

The present invention is not limited to the above-described embodiment as it is, and can be implemented in various forms other than the above-described embodiment at the implementation stage. The present invention can be omitted, added, replaced, or modified in various ways without departing from the gist of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are also included in the scope of the invention described in the claims and the equivalent scope thereof.

1 ... Simulator, 2 ... Control panel, 3 ... Simulation means, 4 ... Voice recognition means, 5 ... Display device, 6 ... Plant status image, 7, 7a, 7b ... Confirmation button, 10 ... Operation evaluation system, 11 ... Data acquisition means, 12 ... Operation result evaluation means, 12a ... Condition evaluation unit, 12b ... Operation content evaluation unit, 12c ... Confirmation evaluation unit, 12d ... Operation transition time evaluation unit, 12e ... Confirmation completion time evaluation unit, 12f ... Comprehensive evaluation Department, 13 ... Evaluation aggregation means, 14 ... Evaluation analysis means, 15 ... Logic analysis means, 16 ... Storage means, 21 ... Operation evaluation logic.

Claims (9)

It is connected to a simulator that simulates the behavior of the plant.
The driving operation data indicating the content of the driving operation, the confirmation operation data indicating the confirmation of the information, the condition data indicating the conditions premised on the driving operation, and the condition success / failure data indicating whether or not the above conditions are satisfied during the driving operation are described above. Data acquisition means acquired from the simulator and
The operation operation data, the confirmation operation data, the condition data, and the condition success / failure data are acquired from the data acquisition means, as well as the criteria set for the contents and procedures of the operation operation and the items and timings for confirming the state of the plant. However, the operation result evaluation that evaluates the validity of the driving operation based on the content and procedure of the driving operation to be grasped, the presence / absence and timing of confirmation of the information to be confirmed, the above-mentioned conditions and whether or not the above-mentioned conditions are satisfied. It is a driving operation evaluation system equipped with means.
The operation result evaluation means is
Refer to the operation evaluation logic including the conditions and the contents and procedures of the operation to be operated according to the success or failure of the conditions, and the items and timings for confirming the state of the plant, and use the referred contents as the reference. Configured to set, and in addition
The content indicated by the condition included in the operation evaluation logic and the information indicating whether or not the condition is satisfied, the condition to be acquired, the condition grasped from the condition success / failure data, and the content of the success / failure of the condition. The condition evaluation department that evaluates the degree of consistency and
A driving operation evaluation unit that evaluates the degree of consistency between the content of the driving operation included in the driving evaluation logic and the content of the driving operation grasped from the acquired driving operation data.
Confirmation evaluation to evaluate the consistency between the contents indicated by the items and timing information for confirming the state of the plant included in the operation evaluation logic and the confirmation items and timing contents grasped from the acquired confirmation operation data. Department and
An operation transition time evaluation unit that measures and evaluates the time required from confirmation of the above conditions to appropriate operation.
Confirmation completion time evaluation unit that measures and evaluates the time required from the confirmation of the conditions to the confirmation of the transition to the target state from the start of the operation to shift the state of the plant to the target state. When,
An operation including a condition evaluation unit, an operation operation evaluation unit, a confirmation evaluation unit, an operation transition time evaluation unit, and a comprehensive evaluation unit that comprehensively evaluates in consideration of the evaluation results of the confirmation completion time evaluation unit. Operation evaluation system. The driving operation evaluation system according to claim 1, wherein the driving result evaluation means is configured to be able to transmit an evaluation result of evaluating the validity of the driving operation to the simulator. The driving operation evaluation system according to claim 1 or 2, further comprising an evaluation counting means for summarizing the evaluation results obtained by the driving result evaluation means for evaluating the validity of the driving operation. An evaluation aggregation means for aggregating the evaluation results obtained by the operation result evaluation means for evaluating the validity of the operation operation, and an evaluation aggregation means.
The driving operation evaluation system according to claim 1 or 2, further comprising an evaluation analysis means for analyzing the evaluation result aggregated by the aggregation means. An evaluation aggregation means for aggregating the evaluation results obtained by the operation result evaluation means for evaluating the validity of the operation operation, and an evaluation aggregation means.
Further provided with an evaluation analysis means for analyzing the evaluation result aggregated by the aggregation means,
The driving operation evaluation system according to claim 1 or 2, wherein the evaluation analysis means is configured to be able to transmit the analysis result of the evaluation result to the simulator. An evaluation aggregation means for aggregating the evaluation results obtained by the operation result evaluation means for evaluating the validity of the operation operation, and an evaluation aggregation means.
An evaluation analysis means that analyzes the evaluation result aggregated by the aggregation means, and an evaluation analysis means.
The driving operation evaluation system according to claim 1 or 2, further comprising a logic analyzing means for specifying the content and procedure of the driving operation related to the result of the evaluation analysis means analyzing the evaluation result. The operation data acquired from the simulator according to any one of claims 1 to 6, which includes information indicating whether or not an operation indicating that the information presented by the simulator has been confirmed has been performed. Driving operation evaluation system. The driving operation evaluation system according to claim 7, wherein the information indicating whether or not the operation indicating that the confirmation has been performed is voice data input from the simulator. The driving operation evaluation system according to claim 7, wherein the operation indicating the confirmation is an operation of pressing a confirmation button included in the image displayed on the simulator.

Images