JP2000162368A - Work plan aiding method and its device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a work plan aiding device and its device for easily estimating the exposure doses of workers under a radiation environment with a high reliability, considering reduction of exposure of workers and estimating with ease manday, time and total manpower necessary for the work. SOLUTION: A plant structure included in the work area is indicated on a display as a three dimensional image. By specifying one of registering work concerning the plant structure specified by a work planner or registered view information, the input of worker's motion and behavior or preinput worker's moving route and motion and the following variation of exposure are indicated.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and apparatus for supporting a work plan in a radiation environment in a facility such as a nuclear power plant or a reprocessing plant that handles radiation or radioactive materials.

[0002]

2. Description of the Related Art As disclosed in Japanese Patent Application Laid-Open No. 1-233502, a plant design support apparatus utilizing a computer is capable of three-dimensionally constructing plant components such as equipment, piping, and supporting structures. On the display,
It was intended to allow a designer to visually grasp spatial layout information and perform design.

[0003] As a conventional work plan support device,
Aiming to improve the operability and safety of various plant components by utilizing the three-dimensional arrangement information of the plant components that are electronically stored in a memory such as a database, for example, together with the construction of the plant by the plant design work. Motion / behavior simulations for improving the efficiency of work have already been developed.

[0004] In the above-described design support apparatus, the operation time and the movement route are confirmed by simulating the operation and behavior of the worker, together with the three-dimensional display of the plant components on the display.

[0005] On the other hand, in order to plan various periodic inspections / maintenance or remodeling work after the start of operation of a plant handling radiation or radioactive materials, it is necessary to consider the number of man-hours in consideration of the reduction of worker exposure and the work. It is necessary to estimate the number of staff involved.

However, in order for the work manager to estimate the dose to which the worker is exposed in the work in the radiation control area, the worker's action and the radiation in the control area are required together with the two-dimensional arrangement information in the plant. Considering the two-dimensional two-dimensional radiation dose rate distribution based on the actual measurement values, the study work based on the experience of the work manager was required.

[0007]

As described above, in the conventional work plan for work performed in a radiation environment, it is necessary to estimate the exposure dose of the workers in addition to the preliminary meetings of the work procedures in the radiation control area. It was very time-consuming. In addition, since the estimation of the exposure dose was based on the insight of the work manager, the reliability of the exposure dose was not sufficient.

On the other hand, the above-mentioned facilities are not only simple two-dimensional design drawings such as plan views and elevation views, but also equipment, piping,
In many cases, a plant structure such as a support structure is three-dimensionally displayed on a display, and is designed using a three-dimensional CAD device capable of easily visually recognizing a spatial arrangement of the plant structure. It is possible to obtain a perspective view from any angle by freely designating the position of the viewpoint based on the data created by such a three-dimensional CAD device, and to perform facility operation and maintenance work. A worker motion simulation system for planning support has been put to practical use.

SUMMARY OF THE INVENTION It is an object of the present invention to be able to estimate the exposure dose of a worker in a radiation environment with high reliability, and to reduce the exposure of the worker in consideration of the number of man-hours, time, and manpower required for the work. It is an object of the present invention to provide a work plan support method and a work plan support method capable of easily estimating the work plan.

[0010]

In order to achieve the above object, a work plan support method according to the present invention provides a work planner by designating a work area to be planned.
The plant structure included in the work area is displayed as a three-dimensional image on a display, and then the work planner is caused to designate a plant structure on which the work plan is to be made on the image, and the designated plant structure is designated. By displaying the list information of the work contents related to the 3D image and specifying the work contents, it is possible to display the movement path and movement of the worker and the change of the exposure dose accompanying the movement entered in advance. It is characterized by having made it.

Further, the work planning support apparatus of the present invention provides a plant configuration including an input signal from a work manager for designating a work area in which work is to be planned, and equipment and piping existing in the designated work area. An input signal for displaying an object, an input signal for displaying a two-dimensional plane dose rate distribution in the control area calculated based on the measured data of the dose rate in a manner superimposed on the three-dimensional image, and a work target and work content An input device that specifies an input, an instruction for operation / movement of a worker, an input device for receiving an input signal for displaying an exposure dose and a working time accompanying the operation / movement of the worker, and a three-dimensional image of the plant component A first storage device for storing data for display, and a processing means for three-dimensionally displaying data for displaying a three-dimensional image of a plant component including equipment and piping existing in the control area. A second storage device for storing the processing procedure, and a processing means for receiving the work object / work content and the input signal of the operation / movement of the worker and displaying it three-dimensionally, and a third storage device for storing the processing procedure And a fourth storage device storing a dose rate distribution data of a two-dimensional plane in the management area and a processing means for displaying the data on a three-dimensional image, and a predetermined storage device from the first storage device or the second storage device. From the data, the third storage device and the fourth storage device,
The processing procedure of the behavior and the dose rate at the operation / behavior position of the worker are sequentially read out, and an arithmetic processing unit for calculating the exposure dose, and the processing results of the arithmetic processing unit are input, and the plant components and the dose rate distribution are input. And a display device for displaying the worker's operation and behavior as a three-dimensional image, and for simultaneously displaying the worker's exposure dose and work time.

With the above configuration, according to the work support method and the apparatus therefor according to the present invention, the work manager designates a work area, a work object, and work contents for which a work is to be planned, by using the input device. Display the three-dimensional shape of the plant structure including the equipment and piping included in the system, and the action and behavior of any worker on the three-dimensional image, and display the exposure dose of that worker on the same screen. The work can be confirmed visually on the display device, and the work can be planned efficiently.

In addition, since the movements and actions of the above-mentioned workers and the radiation doses associated therewith can be stored in a memory, a comparative study of a moving route to a work site where exposure can be minimized, and a plurality of workers at the same time, You can also consider actions and actions.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described with reference to the drawings showing the embodiments. FIG. 1 is a schematic block diagram showing a functional configuration of a work plan support device under a radiation environment according to the present invention. Work support device 1 of the present embodiment
Is an input device 2 for performing processing instructions such as execution, display, and designation of processing, and three-dimensional image display data for storing data for displaying three-dimensional images such as shape data of plant components including equipment, piping, and the like. A memory 3, an operation / action display data memory 4 for storing work targets and work contents, and a dose rate in a two-dimensional plane in the control area calculated based on measured dose rate data in the control area Data is stored from a dose rate distribution display data memory 5 for storing distribution data, a three-dimensional image display data memory, a dose rate distribution display data memory, and an operation / action display data memory according to an instruction from the input device. Arithmetic processing unit 6 that reads and performs arithmetic processing
And an image processing device 7 that receives an output of the arithmetic processing device to generate a three-dimensional image or an image including character information, and a display 8 that displays a three-dimensional image or an image including character information.

The arithmetic processing unit 6 further includes a three-dimensional shape data input unit 6a for inputting three-dimensional shape display data from the three-dimensional shape display data memory, and an operation / action display from the operation / action display data memory. Operation / action display data input unit 6b for inputting data for use, dose rate distribution data input unit 6c for inputting data for dose rate distribution display from the data memory for dose rate distribution display, and processing for inputting a processing instruction of the input device An instruction input unit 6d, an intermediate data memory 6e for temporarily storing data for arithmetic processing, a processing procedure memory 6f for storing various processing procedures, a procedure to be processed from the processing procedure memory, and processing from the intermediate data memory The data to be read out, the worker's operation / behavior processing procedure and the dose rate at the worker's operation / behavior position are sequentially read out, and the An arithmetic processing unit 6g for performing arithmetic processing,
And an output unit 6h for outputting a calculation result of the calculation processing unit.

Next, a description will be given of a method of work support by the work plan support device having the above configuration. FIG. 2 shows a process flow of the work plan support method by the work plan support device 1 described above. First, the process starts with the first step 100 in which the work manager inputs a work area including a plant component to be worked on by the input device 2.

When the work area information is input, the three-dimensional display data and the radiation dose rate distribution of the plant components in the corresponding area are converted by the arithmetic processing unit 6 into the three-dimensional shape data memory 3 and the dose rate data memory. 5 is read (step 110). However, in this step, only the work plan may be performed without reading out the dose rate distribution in the corresponding area.

From the three-dimensional shape and the dose rate distribution read in step 110, a three-dimensional image of the corresponding area is generated by the image processing device 7 and displayed on the display 8 (step 120). Here, the work manager or the work planner is caused to select a structure on which a work plan is to be made by the input device 2 on the three-dimensional image (step 130). The input device 2 may be a method in which a structure on the screen is picked and designated by key input using a keyboard, a mouse, or the like.

When an object to be subjected to the above-mentioned work plan is selected, work information associated with the selected object is read out from the work data memory by the arithmetic processing unit 6, and is temporarily stored in the intermediate data memory 6e. Is stored. At the same time, a list of work contents (work names) is displayed on the display 8, and the work planner registers the work contents to be planned or compares the operation and behavior of the worker based on the work information already registered in the work data memory. Is selected (step 140). A display example of these work content lists is indicated by reference numeral A in FIG.

When the registration of the work contents is selected by the input device 2 such as a mouse in the work contents list (step 1).
50), after registering the work name from the input device 2, as the worker's action route (reference B) shown in FIG. 3, from the start point (reference C) to the intermediate point 1 (reference D), intermediate point 2, and then end. A point (symbol E) is input in three-dimensional point coordinates (step 160).
These three-dimensional coordinate information is temporarily stored in the intermediate memory 6e.

Next, the symbol (symbol F) simulating the worker in the order of these action paths is moved forward and backward by the input device 2 in accordance with the previous action path. Dose rate distribution data memory 5
, Is sequentially read into the intermediate data memory 6e, and the change of the dose rate with time is sequentially calculated on the action route (step 170), and the exposure dose of the symbol simulating the worker is displayed (step 180). ).

If necessary, the time scale is stopped during the movement of the symbol from the input device 2, and the operation name of the worker is input at the three-dimensional coordinate point of an arbitrary moving path, and displayed on the display 8. (Step 180).

Next, when the symbol simulating the worker has been moved from the action start point to the end point of these operations, a display for confirming the record is displayed (step 190). The three-dimensional coordinate information of the action path, the time course of the dose rate, the operation name, and the information of the work name input by the device 2 and stored in the intermediate data memory are recorded in the work data memory 4 (step 200). If there is an input not to record, a display for confirming the end is displayed (step 210), and if there is a confirmation of the end, a series of work plans are finished. An inquiry is made as to whether the operation is to be performed. If the operation is in the same work area, the process returns to step 130. If the work is planned in another work area, the process returns to step 100.

If it is determined in step 140 that the comparison of the operation / action of the worker based on the work information already registered in the work data memory 4 is selected, a plurality of work contents are selected from a work content list (step 220). Then, the data of the registered operation / action and the time lapse of the dose rate associated therewith are read out from the work data memory 4 and are simultaneously displayed on the display 8 (step 230), so that the work planner can make a comparative study.

In FIG. 3, a symbol F simulates a worker, and an example of a temporal change of an exposure rate according to the movement is shown by a symbol G, and a symbol H is an exposure dose by the work. I have. The display of the exposure dose indicated by the reference symbols G and H can be displayed in a one-to-one correspondence when comparing and examining the plurality of workers.

[0026]

As is apparent from the above description, according to the work plan support apparatus and method of the present invention, the change in the dose rate can be visually confirmed along with the three-dimensional shape of the plant structure. On the three-dimensional image, the operation and behavior of any worker can be displayed, and the exposure dose of that worker can be confirmed on the same screen. Estimation can be performed with reliability, and the work plan can be easily performed.

The work contents in the work plan can be defined on each plant structure or three-dimensional coordinates, and a plurality of work contents thus defined are combined to pile up work in a specific work area. The accumulation of radiation dose in a specific work area can be easily managed.

[Brief description of the drawings]

FIG. 1 is a diagram showing a configuration of an embodiment of a work plan support device according to the present invention.

FIG. 2 is a flowchart illustrating an example of a processing flow according to the work plan support method of the present invention.

FIG. 3 is a diagram showing an example of a simulation of worker behavior and a graph of exposure dose displayed on a display.

[Explanation of symbols]

REFERENCE SIGNS LIST 1 work support device, 2 input device, 3 data memory for 3D image display, 4 data memory for operation / action display,
5: data memory for dose rate distribution display, 6: arithmetic processing unit, 6a: three-dimensional shape data input unit, 6b: operation / action display data input unit, 6c: dose rate distribution data input unit, 6
d processing input unit, 6e intermediate data memory, 6f
Processing procedure memory, 6g: arithmetic processing unit, 6h: output unit, 7
... image processing device, 8 ... display.

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification FI FI Theme Court II (Reference) G21C 17/00 D W (72) Inventor Toru Murakami 3-1-1 Kochicho, Hitachi-shi, Hitachi, Ibaraki, Japan F-term (reference) in Hitachi, Ltd. Hitachi Plant 2G075 AA01 AA18 BA17 BA18 CA48 DA08 FA20 FB07 FB16 FC06 GA35 GA37 2G088 AA07 5B049 BB07 CC21 CC31 EE03 EE07 FF03 FF04 5H215 AA03 BB11 BB20 CC07 C0501JX09 GG09 XXXXX

Claims (2)

[Claims] 1. A work planner specifies a work area to be worked on, and displays a plant structure included in the work area as a three-dimensional image on a display, and then displays the work plan on the image. By allowing the user to specify the plant structure for which the work plan is to be made, displaying a list of the work contents related to the specified plant structure together with the three-dimensional image, and specifying the work contents.
A work plan support method characterized by displaying a movement route and a movement of a worker, which have been input in advance, and a change in an exposure dose associated with the movement path. 2. An input signal from a work manager for designating a work area in which work is to be planned, an input signal for displaying plant components including equipment and piping existing in the designated work area, and a dose. An input signal for superimposing and displaying the dose rate distribution on the two-dimensional plane in the control area calculated based on the actual measurement data of the rate on the three-dimensional image,
An input device that specifies an operation content, an instruction for operation / movement of a worker, and an input device that receives an input signal for displaying an exposure dose and a work time accompanying the operation / movement of the worker, and a tertiary of the plant component. A first storage device for storing data for displaying an original image, and a processing procedure together with processing means for displaying data for displaying a three-dimensional image of a three-dimensional image of a plant component including equipment and piping existing in the control area. A second storage device that stores the operation target / work content, and a processing unit that receives an input signal of the operation / movement of the worker and displays the processing three-dimensionally, and a third storage device that stores a processing procedure. A fourth storage device that stores a dose rate distribution data of a two-dimensional plane in the management area and a processing unit that displays the data on a three-dimensional image, and predetermined data from the first storage device or the second storage device, Third An arithmetic processing unit for sequentially reading out the processing procedure of the operation and behavior of the worker and the dose rate at the position of the operation and behavior of the worker from the storage device and the fourth storage device, and calculating the exposure dose; and It has a display device for inputting the processing result, displaying the plant components, the dose rate distribution, the operation and behavior of the worker as a three-dimensional image, and simultaneously displaying the exposure dose and the working time of the worker. A work plan support device, characterized in that: