JPH11326579A - System state indicator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a system state indicator utilized for forming a work plan document describing work range, work period, etc., of maintenance check executed for periodic inspection and grasping the relation of a plurality of works in a reactor power plant and the like. SOLUTION: A computer 100 is connected to an input device 1 for a selection command and the like of work plan data and indication pattern, a memory device 3 of each input data, a memory device 4 of indication pattern and an indication device 2 of a plant system state and execute search functions of writing to the data memory device, reading from the data memory device and searching the indication pattern and indicating the read data on the indication device. A system state indicator 2 is constituted so as to display the daily plant system state obtained by using the time table of plant component state corresponding to the work plan and component state indication pattern.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION In a nuclear power plant or the like,
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a system status display device that can be used to create a work plan describing a work range, a work period, and the like for maintenance and inspection to be performed as a periodic inspection and that can grasp a relationship between a plurality of works.

[0002]

2. Description of the Related Art In a nuclear power plant, periodic inspections are performed approximately once a year in order to ensure its safety.

[0003] Since this periodic inspection is to perform maintenance and inspection of a large number of devices in a limited period, a plan (hereinafter referred to as a plan) describing individual work periods, work ranges, etc., prior to the execution of the periodic inspection. Work plan).

Conventionally, in order to perform maintenance and inspection of certain equipment in a nuclear power plant, a system containing the equipment is separated, a system in the separated range is drained, and then maintenance of the equipment is performed. Inspection method is adopted.

When a separation operation is performed as a system management operation, a work plan is issued, the system is separated according to the procedure described in the work plan after approval, and maintenance and inspection work of the equipment is performed.

When planning and executing a plurality of such maintenance and inspection works, the work plan creator refers to the work plan that has already been planned and determines that the separation range and the work do not overlap. Since a new work plan is being prepared, a lot of time is spent on this judgment as the work plan increases.

[0007] In addition, the preparation of a work plan is not an exclusive work of a limited person in charge, but a fact that a plurality of persons individually prepare the work plan. Since there are several hundred cases, the work of checking the work plan as described above requires a great deal of time and labor.

[0008] In connection with this kind of work, as a system management device of equipment comprising a large number of piping systems and equipment such as a nuclear power plant, a conventionally known system management device is disclosed, for example, in Japanese Patent Application Laid-Open No. H02-1.
There is a device disclosed in Japanese Patent No. 58898, which displays a current plant status, but does not display a future planned plant status.

As a maintenance management support device suitable for supporting a repair work for performing inspection or repair in a chemical plant, a power plant or the like, a conventionally known device is disclosed, for example, in Japanese Patent Publication No. 6-19663. This is to check for work interference using system connection information, work plan information, and logic processing.

[0010]

As described above, in various plants typified by nuclear power plants, a large number of maintenance and inspection works concentrated on a limited period of a periodic inspection are performed by a plurality of persons in charge. In order to prepare a work plan for each work, it is necessary to pay careful attention, judgment and tremendous power to prepare each work plan so that the isolation range of the system to be worked on and the work period do not overlap. It was a complicated job that required a long working time.

The present invention has been made in view of such disadvantages in the conventional method, and the work plan for maintenance and inspection has been described in the prior work plan. It is an object of the present invention to provide an apparatus capable of easily and quickly displaying a system status in relation to a plurality of preceding works so that the system status can be created without generating an overlapping part.

[0012]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and has an input device for inputting data such as a work plan and a command for selecting a display pattern, and a data storage for storing each input data. An apparatus, a pattern storage device for storing an output display pattern, and a display device for displaying a system status of a plant in a requested pattern, respectively, and a writing function to the data storage device based on an input command, a data storage device And a computer that executes a search function of searching a display pattern from a pattern storage device and displaying data read from the data storage device on the display device, and a device state of a plant corresponding to a work plan. Display the plant system status at the date and time obtained using the timetable and the device status display pattern. There is provided a system condition display apparatus constituted to.

That is, according to the present invention, when a new work plan is created, prior input data in the data storage device is arranged and a device state time table is created from work period information, device state information, etc. of the work plan. By displaying the status of each device as a system status of the plant at a specific date and time using a certain device status display pattern, it is possible to efficiently create a work plan on a desired time schedule. It is.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to FIGS. FIG. 1 shows a hardware configuration of the present embodiment. Reference numeral 1 denotes an input device corresponding to a keyboard, a tablet, a mouse, a touch panel, and the like, and a display of a work plan, other various data, and a system state by an operator. It constitutes an operation end to which a command and an operation command are input.

Reference numeral 2 denotes a system status display device, which corresponds to a CRT, a display board (mimic) or the like, and constitutes an operation terminal which displays and refers to a system status obtained by an operator as a result of operation of a computer described later. ing.

Reference numeral 3 denotes a work plan data storage device (work plan storage device) which includes a hard disk, an optical disk, and a CD.
ROM, DVD, etc., and the work plan No. , Operation device, operation contents, operation period, and other work plan information.

Reference numeral 4 denotes a system diagram and status display pattern storage device (system diagram and status display pattern storage device).
A CD-ROM, a DVD, and the like correspond to the system diagram, and a system diagram and a state display pattern (for example, a closed state of a valve is surrounded by a blue circle, an open state is surrounded by a red circle) are stored in advance.

Reference numeral 100 denotes a computer, which corresponds to a personal computer, a workstation, a board computer, or the like, which decodes an input from the input device 1 and inputs / outputs from / to a data storage device 3 and a pattern storage device 4; Control output to

FIG. 2 shows the function of FIG. 1 from a functional point of view. The input device 1 functions as an input section for inputting various commands and necessary data necessary for operating the system as its name implies. The system status display device 2 functions as a system status display unit for displaying what kind of situation is finally scheduled for the required system, and the data storage device 3 stores various data for the input work plan. The pattern storage unit 4 functions as a storage unit, and the pattern storage unit 4 functions as a pattern storage unit that stores a suitable style and pattern to be displayed on the system status display device 2.

A computer 100 which communicates data, commands and the like with the above-described functional units to advance predetermined functions.
When functionally disassembled, the operation plan storage device writing unit 5, the operation plan storage device reading unit 6, and the device display state pattern search unit 7 are roughly divided into three sections.

The work plan information reading unit 6 retrieves a system diagram and a system status display pattern registered in advance in the status display pattern storage unit 4 from the read status information of each device, and displays the system status on the system diagram. The display pattern is displayed on the system status display unit 2.

When maintenance and inspection work for a certain device is planned in a plant under system management, the system manager inputs from the input unit 1 a preparation of a work plan for separating the device. The input items are the operation period, the specification of the isolation valve, other valves, and the operation direction of the device (open, closed, operation, stop, etc.).

The input information is converted into a readable / writable database by the work plan storage device writing unit 5 and written into the work plan storage unit 3. A plurality of work plans created in the same manner are stored in the work plan storage unit 3 as a database.

FIG. 3 shows an example of a data table of the work plan database. The details of the operation procedure include the name of the auxiliary equipment to be operated and the operation, the operation (operation) state, the operation period, and the like. Unless otherwise specified, the operation period may be the same as the operation period.

Next, after a database of a plurality of work plans has been constructed, the system manager inputs the date or time zone of the plant status and the system to be displayed from the input unit 1.

The work plan storage device reading unit 6 reads from the work plan storage unit 3 integrated data corresponding to the input device status in the date or time zone. FIG. 4 shows a processing flow of this part, and the following description is added.

The date and time zone designated for display are received from the input unit 1. The work plan including the designated date and time zone is compared with the work period of the work plan database of the work plan storage unit 3 to select a corresponding work plan, and the work procedure data is stored in the work plan storage unit 3. Read.

An auxiliary equipment state time table is created from the work procedure data. The auxiliary device state time table created here may be in the form shown in FIG. 5 (framework and heading items), for example. As the minimum necessary information in this table, it is sufficient to read the accessory status only for the specified date and time zone, but in the example shown here, Auxiliary machine state timetable including the states before and after. The time width may be in minutes, hours, or days in accordance with the work management, but here, the time unit is used.

Auxiliary equipment status data of a designated date and time and a time zone are stored in a preset state. A specific state is displayed as a code in each of the item fields of the framework and the heading selected above. In this example, the code is defined to indicate the next state. That is, regarding the valve state,
Open, 2: Closed, 3: Adjusted open, 4: Testing, 5: Isolated closed. Regarding the auxiliary equipment status, 1: start, 2: stop, 3 stop / power off, 4: maintenance and inspection, 5: test run. It is.

The read auxiliary device status data is transferred to the device display status pattern search unit 7. The device status display pattern search unit 7 searches the system diagram and status display pattern storage unit 4 for a status display pattern corresponding to the device status read by the work plan document storage device reading unit 6, and outputs the status display pattern to the system status display unit 2.

It should be noted that if the example output to the system status display section 2 is read by translating the above-described code from that shown in FIG. 5, the valve A is adjusted and opened at 1:00 am on January 2nd. Yes, the B valve is closed, and the C pump is in a state of maintenance and inspection, and the state before and after that is displayed so that it can be seen every hour.

Further, it is convenient to previously register a system diagram and a display pattern of an auxiliary machine state in the system diagram and state display pattern storage section 4 in advance. The following can be considered as an example of the accessory state display pattern.

The closed state of the valve is "blue circle", the open state of the valve is "red circle", the adjustment open state of the valve is "pink circle",
The closed state of the isolation valve is "blue square", the start state of the equipment is "red fill", the stop state of the equipment is "blue fill", the maintenance and inspection equipment is "yellow circle", and the work range is " It is preferable to display such as “yellow hatching”.

According to the present embodiment, the plant status on an arbitrary date can be displayed and confirmed on the system status display unit 2, so that when a new work plan is created, another work plan preceding The work period and work range can be confirmed and examined, and effective combination and distribution of maintenance and inspection work can be performed.

Although the present invention has been described with reference to the illustrated embodiments, the present invention is not limited to such embodiments, and various modifications may be made to the specific structure within the scope of the present invention. It goes without saying that it is good.

For example, in the flow chart of FIG. 4 described above, a description has been given as a flow for selecting the applicable work plan and then creating the auxiliary equipment state time chart shown in FIG. 5. However, when the work plan table is created and registered, The auxiliary equipment state time chart may be created sequentially.

[0037]

As described above, according to the present invention, an input device for inputting data such as a work plan and a display pattern selection command, etc.
A data storage device for storing each input data, a pattern storage device for storing an output display pattern, and a display device for displaying a system status of a plant in a requested pattern, and the data storage device based on an input command; A computer that executes a function of writing data to the data storage device, a function of reading data from the data storage device, and a search function of retrieving a display pattern from the pattern storage device and displaying the data read from the data storage device on the display device. Since the system status display device is configured to display the plant system status at the date and time determined using the timetable of the device status of the plant corresponding to the plan and the device status display pattern, when creating a new work plan, The prior input data in the data storage device is sorted and the work period information of the work plan is described. Since the equipment status time table can be created from the equipment status information, etc., and the plant status on an arbitrary date can be easily confirmed on the system status display device, it is necessary to create a work plan after a long and complicated operation. In addition, an effective combination and distribution of maintenance and inspection work can be performed, and work efficiency can be significantly improved.

[Brief description of the drawings]

FIG. 1 is a system configuration diagram of a system status display device according to an embodiment of the present invention.

FIG. 2 is a functional block diagram showing main parts of FIG.

FIG. 3 is an explanatory diagram showing an example of a table of a work plan database according to the embodiment;

FIG. 4 is a flowchart of a work plan document storage device reading unit according to the embodiment;

FIG. 5 is an explanatory diagram showing an example of an auxiliary device state time table according to the embodiment;

[Explanation of symbols]

 Reference Signs List 1 input device 2 system status display device 3 data storage device 4 pattern storage device 100 computer 5 writing unit 6 reading unit 7 pattern search unit

Claims (1)

[Claims] 1. An input device for inputting data such as a work plan and a display pattern selection command, a data storage device for storing each input data, a pattern storage device for storing an output display pattern, and a plant using a requested pattern. And a display device for displaying the system status of the data storage device, and based on an input command, a function of writing to the data storage device, a function of reading from the data storage device, and searching for a display pattern from the pattern storage device to retrieve the data storage. A computer that executes a search function for displaying data read from the device on the display device, and displays a plant system state at a date and time determined using a device state display timetable and a device state display pattern corresponding to a work plan; A system status display device characterized in that the system status is displayed.