KR20140055295A - System and method for operating risk evaluation according to working of nuclear power plant - Google Patents

Abstract

The purpose of the present invention is to provide an operation system and method for evaluating a risk reflecting an operation state of a nuclear power plant by evaluating risk and providing a list of measures corresponding to the degree of risks when a device is suddenly broken (loses its functions) while the nuclear power plant normally operates or when the device is unavailable due to test work, emergent repair or power outage. According to the present invention, in case a device is broken (loses its functions) or is unavailable due to test work, emergent repair, or power outage while the nuclear power plant normally operates, risk may be evaluated, and a list of measures corresponding to the degree of risks is provided in real-time through a terminal of a person in charge or a server in a repair management division. Therefore, work history, current repair work history, risk color, restoration priority, and estimated work time of the device which is currently broken or unavailable according to the risk can be detected and actions may be taken in real-time.

Description

TECHNICAL FIELD [0001] The present invention relates to an operating system for risk assessment that reflects operating conditions of a nuclear power plant, and a method of operating the same. BACKGROUND ART < RTI ID = 0.0 > [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an operating system for risk assessment and a method thereof, and more particularly, to a system and a method for operating a risk evaluation system that reflects an actual operating state of a nuclear power plant.

If the equipment fails (malfunctions) suddenly during normal operation of the power plant, or if the equipment becomes unusable due to test work, emergency maintenance, or power outage, the risk will be assessed and the action taken.

Korean Patent No. 10-1140698 (management system of potential generation stopping device and its method) is disclosed as a technique for analyzing the potential generation stopping effect device, the stoppage effect of the power generation stoppage and the importance of the device.

The above-mentioned prior patent discloses a nuclear power plant comprising: a detection unit positioned around a nuclear power plant constituent device and detecting a failure of a nuclear power plant specific equipment; An input unit for receiving power-down stop device information from the sensing unit and receiving a work order; A memory unit for storing nuclear power plant equipment information, system tree diagrams and stop logic explanatory diagrams; An analysis unit for analyzing the potential generation stopping devices, analyzing the generation stopping effects, and analyzing the importance of the potential generation stopping devices; And a display unit for displaying an analysis result of the analysis unit.

However, there is no system for performing risk assessment reflecting the actual operating state of a nuclear power plant, and there is a desperate need for a system that classifies the level of risk into color and provides differentiated follow-up work.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and it is an object of the present invention to provide an apparatus and a method for operating a nuclear power plant such that when the apparatus is unstable during normal operation of the nuclear power plant, The objective is to provide an operating system and method for risk assessment that reflects the operating status of a nuclear power plant by evaluating the risk and providing measures consistent with each degree of risk.

In order to achieve the above technical object, the present invention relates to an operating system for risk assessment that reflects the operational state of a nuclear power plant, If a failure or unavailable device is not a failure or an unavailable device registered in the job information system 10 due to the occurrence of an unavailability of the device, the failure or unavailable device is selected as the device to be subjected to the risk evaluation, An unavailability determination unit (100) for determining whether the device is a device causing an unavailability; As a result of the determination by the unavailability determination unit 100, in the case of a device that is a risk evaluation target device and causes an unavailability, the device breakdown, the breakdown device breakdown, the current operation arrangement (line- A power plant status collecting unit 200 for collecting information for a risk evaluation including a history, and a device details currently in operation; A risk evaluation unit (300) for generating risk evaluation information by performing risk evaluation on a device subject to risk evaluation or a device causing unavailability based on information for risk evaluation; A risk classifying unit 400 for classifying the risk evaluation information generated by the evaluation in the risk evaluating unit 300 according to a predetermined risk color standard; And information on a risk reduction method and a method of minimizing the inactivity time set corresponding to the risk color criteria classified by the risk classification unit 400 to the maintenance plan operator terminal 20 or the maintenance management server 30 And if the work is performed by the next day, information on the contents and schedule of the current malfunctioning or unavailable device is generated, and the maintenance plan person terminal 20 or maintenance management To the department server (30).

The present invention relates to an operating method for risk assessment that reflects a driving state of a nuclear power plant, and is characterized in that it is determined whether or not an unavailability determination unit (100) (A); (b) collecting information for risk assessment by the power plant condition collecting unit (200) when the device that causes the unavailability is included as a result of the determination in step (a); Based on the information for risk evaluation collected by the power plant condition collecting unit 200, the risk evaluating unit 300 evaluates the risk of the device to be subjected to the risk evaluation or the device causing the unavailability, and generates the risk evaluation information (c); (D) classifying, by the risk classifying unit (400), the risk evaluation information generated by the evaluation to the risk evaluating unit (300) according to a predetermined risk color standard; If the risk color is green as a result of the classification in the step (d), the action plan management unit 500 judges whether or not there is the following work information today (e); As a result of the determination in the step (e), if there is present workday information for today, the risk evaluation unit 300 compares the information on the work target device, the isolated device, (F) performing a risk evaluation based on the current driving arrangement information such as the current driving arrangement information; (G) classifying, by the risk classifying unit (400), the risk evaluation information generated by the evaluation into the risk evaluating unit (300) according to a predetermined risk color standard; If the risk color is yellow as a result of the classification in the step (g), the action plan management unit 500 checks whether the operation for the current trouble or the unusable device is performed until the next day. (H) generating information on the contents and schedule of the unavailable device and transmitting the information to the maintenance plan operator terminal (20) or the maintenance management server (30); (I) the maintenance work schedule reconciliation unit 600 adjusts the maintenance work schedule in accordance with the control signals of the maintenance plan operator terminal 20 or the maintenance management server 30 to generate the adjusted maintenance work schedule information, Step.

According to the present invention as described above, when a device fails (malfunctions) during a normal operation of a nuclear power plant, or when the device can not be used due to a test operation, emergency maintenance, or power failure, The maintenance work history, the risk color, the recovery priority, and the expected operation according to the risk of the present malfunction or unavailable device It has the effect of checking and taking time in real time.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram illustrating an operating system for risk assessment that reflects the operating state of a nuclear power plant according to an embodiment of the present invention; FIG.
2 is a conceptual view illustrating an operating system for risk assessment that reflects the operating state of a nuclear power plant according to an embodiment of the present invention.
3 is a flowchart illustrating an operation method for risk assessment that reflects a driving state of a nuclear power plant according to an embodiment of the present invention.
4 is a flowchart showing another process after step F4 of an operation method for risk assessment that reflects a driving state of a nuclear power plant according to an embodiment of the present invention.
5 is a flowchart showing another process after step F4 of an operation method for risk assessment that reflects the operating state of a nuclear power plant according to an embodiment of the present invention.
6 is a flowchart showing another process after step F4 of an operation method for risk assessment that reflects a driving state of a nuclear power plant according to an embodiment of the present invention.

Specific features and advantages of the present invention will become more apparent from the following detailed description based on the accompanying drawings. It is to be noted that the detailed description of known functions and constructions related to the present invention is omitted when it is determined that the gist of the present invention may be unnecessarily blurred.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will now be described in detail with reference to the accompanying drawings.

An operation system for risk assessment that reflects the operating state of a nuclear power plant according to an embodiment of the present invention will be described with reference to FIGS. 1 and 2. FIG.

FIG. 1 is an exemplary conceptual view of an operating system S for risk assessment, which reflects the operating state of a nuclear power plant according to an embodiment of the present invention. As shown in FIG. 1, The risk assessment section 300, the risk classification section 400, the action plan management section 500, the maintenance task schedule remapping section 600, the emergency recovery plan establishing section 700, and the immediate recovery measure (800).

First, the unavailability determination unit 100 determines whether a failure or an unavailable device is in operation (a failure) due to a failure of the device due to a failure of the device (failure of function) or a test / emergency maintenance / If it is not a malfunctioning or unavailable device registered in the information system 10, the malfunctioning or unavailable device is selected as a device to be subjected to risk evaluation, and it is determined whether or not the device to be risk-rated is a device causing the malfunctioning (S1, S2).

In the case where the device is a device subject to risk evaluation as a result of the determination by the unavailability determination unit 100 and causes the device to be unavailable, the power plant condition collecting unit 200 collects information for risk evaluation, , The device status collecting unit 200 ends the process (S3, S4) if it is not a device to be subjected to the risk evaluation or a device that can not be used.

At this time, the information for the risk evaluation is information including breakdown or unusable device breakdown, isolation device breakdown, current drive arrangement (line-up breakdown information) breakdown, and current device breakdown.

Also, the risk evaluation unit 300 evaluates the risk of the risk evaluation target device or the device causing the unavailability based on the information for the risk evaluation collected by the power plant condition collecting unit 200, (S5).

In addition, the risk classifying unit 400 classifies the risk evaluation information generated by the evaluation into the risk evaluating unit 300 according to a predetermined risk color standard (S6). At this time, the risk color criteria may be classified by color as shown in [Table 1].

Based on risk color Risk color Based on risk color Green CDF <2 x CDF _{Zero Maint.} Or LERF <2 x LERF _{Zero Maint.} Yellow (Yellow) CDF > 2 x CDF _{Zero Maint.} Or LERF > 2 x LERF _{Zero Maint.} Orange CDF > 10 x CDF _{Zero Maint.} Or LERF > 10 x LERF _{Zero Maint.} Red (Red) CDF > 20 x CDF _{Zero Maint.} Or LERF > 20 x LERF _{Zero Maint.}

For reference, the risk color criterion for the nuclear damage frequency (CDF) and the early mass emission frequency (LERF), which is the risk scale of a nuclear power plant, refers to the annual CDF / LERF when there is no failure or maintenance, / LERF.

If the classification result (S6) of the risk classification unit 400 and the risk color are yellow, the action plan management unit 500 minimizes the predetermined risk reduction plan and the inactivity time according to the classified risk color standard And transmits the information about the plan to the maintenance planner terminal 20 or the maintenance management server 30 (S7).

If the classification result S6 of the risk classification unit 400 and the risk color are green, the action plan management unit 500 determines whether there is the next job information today (S8).

If there is no follow-up work information today, the risk assessment is ended by the action plan management unit 500. If there is follow-up work information for today, the risk evaluation unit 300 determines whether the work target device and the isolation device, The risk evaluation is performed based on the information on the operation target device and the current operation arrangement information such as the rotation operation of the rotating equipment (S9).

In addition, the risk classifying unit 400 classifies the risk evaluation information generated by the evaluation S9 in the risk evaluating unit 300 according to a predetermined risk color standard (S10).

At this time, if the classification result (S10) of the risk classification unit 400 and the risk color is yellow, the action plan management unit 500 confirms whether the operation for the current failure or unavailable device is performed until the next day, And transmits information on the operation contents and schedule of the current failure or unavailable device to the maintenance plan operator terminal 20 or the maintenance management server 30 (S11, S12).

Here, today's workday information includes today's information such as work-related device details, isolated device details, and work-related device details scheduled to be completed today.

On the other hand, when the classification result of the risk classification unit 400 is S10 and the color of the risk is orange or red, the action plan management unit 500 determines whether or not the operation on the current trouble- If it is not possible to do so by the next day, information on the contents and schedule of the current malfunctioning or unavailable device is generated and transmitted to the maintenance plan operator terminal 20 or the maintenance management server 30 (S16) .

Then, the maintenance work schedule reconciliation unit 600 adjusts the maintenance work schedule in accordance with the control signals of the maintenance plan operator terminal 20 or the maintenance management server 30 to generate the adjusted maintenance work schedule information (S17 ).

Meanwhile, when the classification result (S6) of the risk classifying unit 400 and the risk color are orange (orange), the emergency recovery plan establishing unit 700 selects the recovery priority for the devices currently performing the task (S13), and generates recovery plan establishment information including the current maintenance work history, the risk color, the recovery priority, and the estimated work time, and transmits it to the maintenance plan operator terminal 20 or the maintenance management server 30 (S15 ).

On the other hand, if the classification result S6 of the risk classifying unit 400 and the risk color are red, the recovery action performing unit 800 immediately selects a recovery priority order for the devices currently performing the task (S14), instant recovery action establishment information including the current maintenance work history, the risk color, the recovery priority, and the estimated work time is generated and transmitted to the maintenance plan operator terminal 20 or the maintenance management server 30 S15).

In addition, after (S15), the action plan management unit 500 confirms whether the operation for the current failure or the unavailable device is performed until the next day, and if the failure can not be performed by the next day, And transmits the generated information to the maintenance plan operator terminal 20 or the maintenance management server 30 (S16).

Then, the maintenance work schedule reconciliation unit 600 adjusts the maintenance work schedule in accordance with the control signals of the maintenance plan operator terminal 20 or the maintenance management server 30 to generate the adjusted maintenance work schedule information (S17 ).

Hereinafter, referring to FIG. 3, a description will be made of a method for operating a risk assessment system that reflects a driving state of a nuclear power plant according to the present invention.

First, it is determined whether or not the unavailability determination unit 100 includes a device causing an unavailability from each of the risk evaluation subject devices (F1).

As a result of the determination in the F1 step, if the equipment causing the unavailability is included, the power plant condition collecting unit 200 collects information for risk evaluation (F2).

Then, the risk evaluating unit 300 evaluates the risk of the apparatus to be subjected to risk evaluation or the apparatus that can not be used based on the information for the risk assessment collected by the power plant condition collecting unit 200, (F3).

Subsequently, the risk classifying unit 400 classifies the risk evaluation information generated by the evaluation into the risk evaluating unit 300 according to a predetermined risk color standard (F4).

If the result of the classification in step F4 indicates that the color of the risk is green, the action plan manager 500 determines whether there is present work information for the present day (F5).

As a result of the determination in operation F5, if there is present workday information for today's day, the risk evaluation unit 300 calculates information on the work target device, the isolated device, the work target device scheduled to be completed today, (F6), based on the current driving arrangement information of the driver.

Then, the risk classifying unit 400 classifies the risk evaluation information generated by the evaluation into the risk evaluating unit 300 according to a predetermined risk color standard (F7).

If the result of the classification in step F7 indicates that the risk color is yellow, the action plan management unit 500 confirms whether the operation for the current failure or unavailable device is performed until the next day. If the failure occurs, And transmits information on the contents and schedule of the incapable device to the maintenance plan operator terminal 20 or the maintenance management server 30 (F8).

Then, the maintenance work schedule reconciliation unit 600 adjusts the maintenance work schedule according to the control signals of the maintenance plan operator terminal 20 or the maintenance management server 30 to generate the adjusted maintenance work schedule information (F9 ).

On the other hand, if the result of the classification in step F7 indicates that the risk color is orange (Orange) or red (Red), the action plan management unit 500 confirms whether the operation for the current failure or unavailable device is performed until the next day, Information on the contents and schedule of the current failure or unavailable device is generated and transmitted to the maintenance plan operator terminal 20 or the maintenance management server 30, and the procedure is executed in step F9 (F10 ).

Hereinafter, another process after step F4 of the operation method for risk assessment reflecting the operating state of the nuclear power plant according to the present invention will be described with reference to FIG.

If the result of the classification in step F4 indicates that the risk color is yellow, the action plan management unit 500 transmits information on a risk reduction method and a method for minimizing the unavailability time according to the classified risk color standard, (20) or the maintenance management department server (30), and executes the procedure to the step F5 (F11).

Hereinafter, another process after step F4 of the operation method for risk assessment reflecting the operating state of the nuclear power plant according to the present invention will be described with reference to FIG.

If the result of the classification in step F4 indicates that the risk color is orange, the recovery plan establishing unit 700 selects the recovery priority for the devices currently performing the task, Recovery priority information including the recovery priority and the expected working time is generated and transmitted to the maintenance plan operator terminal 20 or the maintenance management server 30 (F12).

Then, the action plan manager 500 checks whether the current failure or the unavailable device is performed until the next business day. If the failure can not be done by the next day, the action plan manager 500 generates information on the task content and schedule of the current failure or unavailable device To the maintenance plan manager terminal 20 or the maintenance management server 30, and executes the procedure to the step F9 (F13).

Hereinafter, another process after step F4 of the operation method for risk assessment reflecting the operation state of the nuclear power plant according to the present invention will be described below with reference to FIG.

If the result of the classification in step F4 indicates that the risk color is red, the recovery action execution unit 800 selects the recovery priority for the devices that are currently performing the task and displays the current maintenance task history, Recovery priority information including the recovery priority and the expected operation time, and transmits the information to the maintenance plan operator terminal 20 or the maintenance management server 30 (F14).

Then, the action plan manager 500 checks whether the current failure or the unavailable device is performed until the next business day. If the failure can not be done by the next day, the action plan manager 500 generates information on the task content and schedule of the current failure or unavailable device To the maintenance plan manager terminal 20 or the maintenance management server 30, and executes the procedure to the step F9 (F15).

While the present invention has been particularly shown and described with reference to preferred embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. It will be appreciated by those skilled in the art that numerous changes and modifications may be made without departing from the invention. Accordingly, all such appropriate modifications and changes, and equivalents thereof, should be regarded as within the scope of the present invention.

The embodiments of the present invention described above are not implemented only by the apparatus and method, but may be implemented through a program for realizing the function corresponding to the configuration of the embodiment of the present invention or a recording medium on which the program is recorded.

S: Operating system for risk assessment reflecting operation status of nuclear power plant
100: Unavailability determination unit 200: Power station status collecting unit
300: Risk evaluation unit 400: Risk classification unit
500: action plan management unit 600: maintenance task scheduler
700: Emergency Recovery Planning Department 800: Immediate Recovery Measures Department
10: Task information system 20: Maintenance plan person terminal
30: Maintenance management department server

Claims (12)

In an operating system for risk assessment that reflects the operating state of a nuclear power plant,
In the event of failure of the equipment due to equipment failure (malfunction) or test / emergency maintenance / interruption during normal operation of the nuclear power plant, the malfunctioning or unavailable equipment may be damaged or used in the work information system (10) An unavailability determination unit (100) for selecting a malfunctioning or unavailable device as a device to be subjected to risk evaluation and determining whether the device is a device causing the malfunction;
As a result of the determination by the usability disablement determiner 100, in the case of a device that is a device of risk evaluation and causes an unavailability, the device breakdown or unavailable device breakdown, isolation device breakdown, ) History, and information about the risk evaluation including the details of the device currently in operation;
A risk evaluation unit (300) for performing risk evaluation on the risk evaluation target device or the device causing the unavailability based on the information for the risk assessment to generate risk evaluation information;
A risk classifying unit 400 for classifying the risk evaluation information generated by the evaluation into the risk evaluating unit 300 according to a predetermined risk color standard; And
Information on a risk reduction method and a method of minimizing the inactivity time predetermined to correspond to the risk color criteria classified by the risk classifying unit 400 is transmitted to the maintenance plan operator terminal 20 or the maintenance management server 30 And if the work is performed by the next day, information on the contents and schedule of the current malfunctioning or unavailable device is generated, and the maintenance plan person terminal 20 or maintenance management And an action plan management unit (500) for transmitting the information to the department server (30). The operating system for risk assessment reflecting the operating state of a nuclear power plant. The method according to claim 1,
A maintenance work schedule reconciliation unit (600) for adjusting the maintenance work schedule in accordance with the control signals of the maintenance plan operator terminal (20) or the maintenance management server (30) and generating the adjusted maintenance work schedule information;
Recovery priority information including the current maintenance work history, the risk color, the recovery priority, and the estimated work time is generated and stored in the maintenance plan person terminal 20 or An emergency recovery plan establishing unit 700 for transmitting the emergency recovery plan to the maintenance management department server 30; And
The recovery priority information for the devices currently performing the job is selected and the recovery plan preparation information including the current maintenance work history, the risk color, the recovery priority, and the estimated work time is generated, And a recovery action execution unit (800) for immediately transferring the operation result to the maintenance management department server (30). The method according to claim 1,
The action plan management unit (500)
If the risk classification unit 400 determines that the risk color is yellow, the maintenance planner terminal 20 receives information on a risk reduction plan and a method of minimizing the inactivity time according to the classified risk color standard, Or the maintenance management department server 30,
It is determined whether or not the operation of the faulty or unavailable device is performed until the next day. If the operation is completed by the next day, the information about the operation details and the schedule of the faulty or unavailable device is generated and stored in the maintenance plan operator terminal 20 or the maintenance management department To the server (30). The operating system for risk assessment reflecting the operating state of the nuclear power plant. The method according to claim 1,
The action plan management unit (500)
If the result of the classification by the risk classifying unit 400 indicates that the risk color is green, it is determined whether or not the next job information is present today. If there is no next job information today,
If there is workday information for today's day, the risk evaluation is performed based on the information on the work target device, the isolated device, the work target device scheduled to be completed today, and the current operation sequence information such as the rotation operation of the rotating equipment And controls the risk evaluation unit (300). The operating system for risk assessment reflecting the operating state of the nuclear power plant. The method according to claim 1,
The action plan management unit (500)
If the result of the classification by the risk classifying unit 400 is that the color of the risk is orange or red, it is confirmed whether the operation for the current failure or the unavailable device is performed until the next day. Information on the operation contents and schedule of the presently failed or unavailable equipment is generated and transmitted to the maintenance plan operator terminal (20) or the maintenance management unit server (30). Operating system. 3. The method according to claim 1 or 2,
The action plan management unit (500)
If the result of the classification by the risk classifying unit 400 indicates that the risk color is orange, the recovery priority for the devices currently performing the job is selected, and the current maintenance job history, the risk color, And generates the recovery plan establishment information including the estimated operation time and transmits the recovery plan establishment information to the maintenance plan operator terminal (20) or the maintenance management server (30). Operational system for risk assessment that reflects driving status. 3. The method according to claim 1 or 2,
The action plan management unit (500)
If the classification result (S6) of the risk classification unit 400 and the risk color is red, the recovery priority for the devices currently performing the job is selected and the current maintenance job history, And immediately generates recovery action preparation information including a priority order and an expected operation time, and transmits the recovery action preparation information to the maintenance plan operator terminal (20) or the maintenance management unit server (30) The operating system for risk assessment that reflects the operating status of nuclear power plants. In operating methods for risk assessment that reflects operating conditions of nuclear power plants,
(a) determining whether or not the unavailability determination unit (100) includes a device causing an unavailability from each of the risk evaluation subject devices;
(b) collecting information for risk assessment by the power plant condition collecting unit (200) if the device that causes the unavailability is included as a result of the determination in step (a);
(c) The risk evaluating unit 300 evaluates the risk for the device to be subjected to the risk evaluation or the device for causing the unavailability based on the information for the risk evaluation collected by the power plant condition collecting unit 200, Generating information;
(d) classifying, by the risk classifying unit 400, the risk evaluation information generated by the evaluation in the risk evaluating unit 300 according to a predetermined risk color standard;
(e) If the risk color is green as a result of the classification in the step (d), the action plan management unit 500 determines whether or not there is the following work information today;
(f) If the current task information is presently present as a result of the determination in the step (e), the risk evaluation unit 300 calculates information about the task target device, the isolated device, Performing a risk evaluation based on current operating arrangement information such as a replacement operation of the apparatus;
(g) classifying, by the risk classifying unit 400, the risk evaluation information generated by the evaluation in the risk evaluating unit 300 according to a predetermined risk color standard;
(h) If the risk color is yellow as a result of the classification in the step (g), the action plan manager 500 checks whether the operation for the current trouble or the unavailable device is performed until the next day, Generating information on the contents and schedule of the current malfunctioning or unavailable device and transmitting the generated information to the maintenance plan operator terminal 20 or the maintenance management server 30; And
(i) the maintenance work schedule reconciliation unit 600 adjusts the maintenance work schedule in accordance with the control signals of the maintenance plan operator terminal 20 or the maintenance management server 30 to generate the adjusted maintenance work schedule information ; And an operating method for risk assessment that reflects the operational state of the nuclear power plant. 9. The method of claim 8,
(j) If the risk color is orange or red as a result of the classification in step (g), the action plan management unit 500 checks whether the operation for the current failure or unavailable device is performed until the next day , Information on the contents and schedule of the current malfunctioning or unavailable device is generated and transmitted to the maintenance plan operator terminal (20) or the maintenance management server (30), and the procedure is executed in step F9 The method of claim 1, further comprising the steps of: 9. The method of claim 8,
(k) When the risk color is yellow as a result of the classification in the step (d), the action plan management unit 500 obtains information on the risk reduction method and the inactivity time minimization plan predetermined according to the classified risk color standard To the maintenance plan operator terminal (20) or the maintenance management server (30), and performing the procedure to the step (e). How to operate. 9. The method of claim 8,
(l) When the risk color is orange as a result of the classification in the step (d), the recovery plan establishing unit 700 selects the recovery priority for the devices currently performing the operation, Generating recovery plan establishment information including a work history, a risk color, a recovery priority, and an expected work time, and transmitting the generated recovery plan establishment information to the maintenance plan operator terminal (20) or the maintenance management server (30); And
(m) The action plan manager 500 checks whether the operation of the current faulty or unavailable device is performed until the next day, and if it can not be done by the next day, generates information about the contents and schedule of the current faulty or unavailable device To the maintenance plan operator terminal (20) or the maintenance management server (30), and performing the procedure to the step (i). How to operate. 9. The method of claim 8,
(n) If the result of the classification in step (d) indicates that the risk color is red, the recovery action execution unit 800 selects the recovery priority for the devices currently performing the task, Generating immediate recovery action establishment information including a work history, a risk color, a recovery priority, and an estimated work time, and transmitting the generated recovery action information to the maintenance plan operator terminal (20) or the maintenance management server (30); And
(o) The action plan manager 500 checks whether the operation of the current faulty or unavailable device is performed until the next day, and if it can not be done by the next day, generates information about the contents and schedule of the current faulty or unavailable device To the maintenance plan operator terminal (20) or the maintenance management server (30), and performing the procedure to the step (i). How to operate.

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