JPH05225258A - Data processing method for visual inspection of fuel assembly - Google Patents

Abstract

PURPOSE:To quickly and accurately perform inspection by intermittently selecting and recording arbitrary parts of continuously photographed pictures and recording the keyword or the like corresponding to each of these pictures in a data base together with the picture. CONSTITUTION:Pictures recorded on a VTR tape 5 by an underwater television camera 2 and a VTR 4 are recorded as the data base in a data storage part 9 using an optical disk or a hard disk by a personal computer 7 and a picture processing part 6 provided independently of the personal computer 7. Only required parts are intermittently selected and recorded from pictures of an assembly 1 continuously recorded on the VTR tape 5, and a proper keyword or various comments are recorded as the data base in accordance with each of these pictures together with the selected picture by a comment describing part 8. An arbitrary keyword is only inputted to the computer to immediately see objective picture data.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fuel assembly visual inspection in which an image at the time of visual inspection of a fuel assembly and keywords and comments describing the features of this image are made into a database using a computer and are simultaneously recorded. The present invention relates to a data processing method.

[0002]

2. Description of the Related Art A nuclear fuel assembly is tested for its soundness before the irradiation spent fuel is remounted on the reactor and reused.
It is necessary to confirm whether it can be reused. For that purpose, various periodic inspections are carried out, leakage inspection, accuracy of each fuel rod gap of the assembly, soundness of each fuel support lattice, bending of the assembly, etc., soundness of each constituent member of the assembly. Are detected by a television camera or the like, and the detected data are sent to the respective recording devices for visual inspection.

As a visual inspection device for a fuel assembly for performing such inspection, a device provided with a control device, a camera drive mechanism, a display device, a television camera, a VTR and a CRT (monitor television) is generally used. A driving instruction is given to the camera driving mechanism to operate the TV camera, and the appearance is recorded on a recording sheet by an inspector.
The video signal of the television camera is usually recorded and stored on a video tape by the VTR.

[0004]

By the way, in the appearance inspection, when a phenomenon characteristic of the fuel assembly, such as peeling of the clad on the surface of the fuel rod, bending of the fuel rod, or adhesion of foreign matter, is observed. Even if we try to compare these events with past cases, it takes a lot of effort and time to find and reproduce a desired image from a large amount of past video tapes, or to search for it. There was a good chance of leaks. Further, these inspection images are usually managed only within each nuclear power plant, and it is difficult to refer to the inspection results obtained at other nuclear power plants.

The present invention copes with the above-mentioned situation, and makes a database of a visual inspection image of a fuel assembly by a television camera and a keyword describing the characteristics of this image by a computer, and this database is used at the time of the visual inspection of the fuel assembly. The purpose of the present invention is to carry out the above-mentioned test quickly and accurately by using it for comparison and control.

[0006]

The feature of the data processing method of the present invention that meets the above-mentioned object is, however, that the image taken by the television camera is converted into a computer image in the visual inspection of the fuel assembly by the television camera. When recording in the database by, the arbitrary part of the images that are continuously photographed is intermittently selected and recorded, and keywords corresponding to these images are recorded in the database together with each image. .. Further, the database may be managed by a single computer having a plurality of terminals, and the terminals may be arranged in a plurality of nuclear power plants or the like.

[0007]

When the data processing of the fuel assembly visual inspection is performed by the method of the present invention and accumulated, the characteristic events found in the fuel assembly visual inspection carried out in the periodical inspection of the nuclear power plant are When comparing with past examples, in the past, it was necessary to play back a large amount of video tapes one by one to find out, but immediately after entering any keyword into the computer, it is aimed immediately The image data can be viewed, and the latest information can be obtained in a short time and without omission of search.

Further, conventionally, since all the inspection images are recorded and stored on a video tape, the number thereof is increasing year by year, and a considerable amount of labor was spent on the storage place and its management. By using the method of the invention, it is only necessary to record necessary images in the database, and it is possible to save the above-mentioned trouble.

[0009]

Embodiments of the present invention will be described below with reference to the accompanying drawings.

FIG. 1 is an explanatory view showing an embodiment of the present invention. In the drawing, (1) is a fuel assembly, (2) is an underwater television camera, (3) is a CRT monitor television, and (4) is V.
TR, (5) is a recorded VTR tape, (6) is an image processing apparatus, (7) is a personal computer, (8) is a comment description section such as a keyword, and (9) is a data storage section. The underwater television camera (2) is operated by a control device (not shown) via a drive mechanism (not shown).

That is, according to the present invention, as shown in the figure, when performing a visual inspection of a fuel assembly for inspecting the fuel assembly with a television camera (2), an image of the appearance of the fuel assembly (1) obtained by the inspection is displayed. The personal computer (7) is used to create a database of keywords and comments describing their characteristics, and the desired image information can be quickly reproduced by simply inputting an arbitrary keyword or the like. That is, specifically, the underwater television camera (2) and the VTR
The image recorded on the VTR tape (5) by (4)
When recording as a database in the data storage unit (9) using an optical disk or a hard disk by the personal computer (7) and the image processing unit (6) provided separately from the personal computer (7), the VT
Aggregate (1) continuously recorded on the R tape (5)
Only the necessary part is intermittently selected and recorded from among the images, and appropriate keywords and various comments corresponding to each image are recorded as the database together with the selected image by the comment description section (8). To search the data in the database, enter the name of the reactor, the inspection date, the fuel assembly number, the keyword indicating the feature you want to refer to, etc. from the keywords recorded with the image using the keyboard of the personal computer. By doing. The search result can be printed by a printer.

Next, an application example of the data processing method of the present invention will be described with reference to FIG. The image to be recorded in the database is obtained from image source data (10) such as a television camera, a photograph, a VTR, a video disc, an image scanner, etc. via an image processing device (11) and a host computer (12).
It is converted into optical data and input to the database of the data storage unit (13). At this time, the characteristic event of the fuel assembly and the keyword representing it are also written in each inspection image. The number of image data that can be recorded is determined by the optical disk or hard disk that is a data storage medium. The inspector simply inputs the characteristic of the target image data as a keyword, and the search results of all the images having the characteristic are immediately and sequentially displayed on the monitor screen of the personal computer. The search results displayed on the monitor screen can also be printed using a printer of a personal computer, a color video printer, or the like. The features of the image include peeling of the clad, bending of the fuel rod and the like, adhesion of foreign matter, coloring, and any other features on the appearance of each part.

And in this application example, somewhere 1
One host computer (12) installed in a nuclear power plant at a certain location is connected to terminals (14) to (1) of a plurality of nuclear power plants.
Since 6) has a configuration in which it is connected by a telephone line or a dedicated line, it is possible to use the database by the above-mentioned data processing method at a plurality of nuclear power plants as a reference for a conventional case at the time of visual inspection of fuel assemblies. By doing so, it is only necessary to manage the database whose content is increasing at any one place, and it is possible to commonly use the latest database at each nuclear power plant. become.

[0014]

As described above, in the data processing method of the fuel assembly visual inspection of the present invention, in the visual inspection of photographing the fuel assembly by the television camera, the image photographed by the television camera is stored in the database by the computer. When recording in, the arbitrary part of the images that are continuously captured is intermittently selected and recorded, and keywords corresponding to each of these images are recorded in the database together with each image. By accumulating the inspection data by the method, when comparing the characteristic events found in the fuel assembly visual inspection performed in the periodic inspection of the nuclear power plant with the past examples, it was conventionally necessary to generate a large amount of data. I had to find a videotape by playing it one by one, but I typed arbitrary keywords into the computer The latest image data can be immediately viewed without any omission of search, and the number of inspection images has been recorded and stored on video tape in the past, so the number increases year by year. Although considerable effort has been spent on the storage location and its management, according to the method of the present invention, it is only necessary to record the necessary images in the database. By omitting it and managing the data in a space-saving manner, and by managing the database with a single host computer having a plurality of terminals, it is possible for a plurality of inspectors to constantly operate at a plurality of nuclear power plants with the terminals installed. This has many remarkable effects that the latest information can be searched in common.

[Brief description of drawings]

FIG. 1 is an explanatory view showing an embodiment of the method of the present invention.

FIG. 2 is an explanatory view showing another embodiment of the method of the present invention.

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Claims (2)

[Claims] 1. A visual inspection for operating a television camera by a control device via a camera drive mechanism to photograph the appearance of a fuel assembly, and continuously recording the images photographed by the television camera in a database by a computer. Of the fuel assembly visual inspection, characterized in that an arbitrary portion is intermittently selected and recorded in the above-mentioned images that are photographed, and keywords corresponding to each of these images are recorded in the database together with each image. Data processing method. 2. The data processing of the fuel assembly visual inspection according to claim 1, wherein the database is managed by one computer having a plurality of terminals, and each of the terminals is arranged at a plurality of nuclear power plants. Method.