JPH04323599A - Method for high speed inspecting layout of fuel assembly inside reactor - Google Patents
Method for high speed inspecting layout of fuel assembly inside reactorInfo
- Publication number
- JPH04323599A JPH04323599A JP3119407A JP11940791A JPH04323599A JP H04323599 A JPH04323599 A JP H04323599A JP 3119407 A JP3119407 A JP 3119407A JP 11940791 A JP11940791 A JP 11940791A JP H04323599 A JPH04323599 A JP H04323599A
- Authority
- JP
- Japan
- Prior art keywords
- image
- fuel assemblies
- input device
- image input
- reactor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000000446 fuel Substances 0.000 title claims abstract description 48
- 238000000034 method Methods 0.000 title claims description 32
- 238000000429 assembly Methods 0.000 claims abstract description 33
- 230000000712 assembly Effects 0.000 claims abstract description 33
- 238000012545 processing Methods 0.000 claims abstract description 20
- 238000007689 inspection Methods 0.000 claims description 28
- 238000000605 extraction Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 4
- 238000005259 measurement Methods 0.000 description 3
- 238000012790 confirmation Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000013256 coordination polymer Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000002915 spent fuel radioactive waste Substances 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
Landscapes
- Monitoring And Testing Of Nuclear Reactors (AREA)
Abstract
Description
【０００１】0001
【産業上の利用分野】本発明は、燃料集合体の炉内配置
を確認する検査方法に係り、詳しくは該検査を高速に行
なわしめ上記確認に要する時間を大幅に短縮する燃料集
合体炉内配置の高速検査方法に関するものである。[Industrial Field of Application] The present invention relates to an inspection method for confirming the arrangement of fuel assemblies in a reactor, and more specifically, the present invention relates to an inspection method for confirming the arrangement of fuel assemblies in a reactor, and more specifically, the present invention relates to an inspection method for inspecting the arrangement of fuel assemblies in a reactor, and in particular, to perform the inspection at high speed and significantly shorten the time required for the above confirmation. This invention relates to a high-speed inspection method for placement.
【０００２】0002
【従来の技術】燃料集合体は、一度装荷された使用済燃
料とまだ装荷されない未使用燃料とが炉心内に所定配列
で配置されて使用されるが、従来、定期検査時における
燃料取替作業終了後の燃料集合体炉内配置の確認は、水
中テレビカメラを内蔵した構造体を燃料取替クレーンで
保持し、炉心上部を走査させ、モニターに表示されたカ
メラ画像によって燃料集合体上部に個々に付された集合
体番号を１つ１つ読み取ることによって行なっている。[Prior Art] A fuel assembly is used by arranging spent fuel that has been loaded once and unused fuel that has not yet been loaded in a predetermined arrangement within a reactor core. After completion, the arrangement of fuel assemblies inside the reactor can be confirmed by holding the structure with a built-in underwater television camera with a refueling crane, scanning the upper part of the core, and checking the camera image displayed on the monitor to check the arrangement of individual fuel assemblies in the upper part of the reactor. This is done by reading the aggregate numbers attached to each one one by one.
【０００３】0003
【発明が解決しようとする課題】ところが、上記検査方
法にあっては、燃料集合体１体１体を近くで撮影し確認
しているため検査誤りは少ない反面、上記の如く集合体
を１体ずつ撮影することから検査時間が非常に長くなる
という欠点を有している。[Problems to be Solved by the Invention] However, in the above inspection method, each fuel assembly is photographed and confirmed in close proximity, so there are few inspection errors; This method has the disadvantage that the inspection time is extremely long because images are taken one at a time.
【０００４】本発明は叙上の如き実状に対処し、特に多
数本の燃料集合体を同時に撮影すると共に画像処理技術
にて該映像信号を処理する新規な検査方法を見出すこと
により、上記検査確認に要する時間を大幅に短縮するこ
とを目的とするものである。The present invention deals with the above-mentioned actual situation, and in particular, by discovering a new inspection method that simultaneously photographs a large number of fuel assemblies and processes the video signals using image processing technology, the above-mentioned inspection and confirmation are achieved. The purpose of this is to significantly shorten the time required.
【０００５】[0005]
【課題を解決するための手段】即ち、上記目的に適合す
る本発明の燃料集合体炉内配置の高速検査方法の特徴と
するところは、テレビカメラ等の画像入力装置を炉心上
部に配置し、該画像入力装置にて複数体の燃料集合体を
同時に画像入力すると共に、該画像信号を画像処理装置
にて、集合体刻印部の切出し，文字部の強調，文字の抽
出、文字認識等の画像処理を行い、この画像または画像
信号によって上記複数の燃料集合体各々の番号を読み取
ることにある。また、上記検査方法において、画像入力
装置に１度に映る燃料集合体は発電所の形態により２体
から十数体と規制されるため、画像入力装置を複数設置
したり、首振り可能に設けたりすることが好適であり、
請求項２及び３これを記載したものである。さらに、上
記画像入力装置の固定位置はクレーンとホイストとによ
って移動させると共に、該画像入力装置を水中と空気中
の何れにおいても使用可能とすることも望ましい。[Means for Solving the Problems] That is, the feature of the high-speed inspection method for the arrangement of fuel assemblies in a reactor according to the present invention, which meets the above object, is that an image input device such as a television camera is arranged at the upper part of the reactor core; The image input device inputs images of multiple fuel assemblies at the same time, and the image signals are processed by the image processing device to create images for cutting out the stamped parts of the assemblies, emphasizing text parts, extracting characters, character recognition, etc. The purpose is to perform processing and read the number of each of the plurality of fuel assemblies based on this image or image signal. In addition, in the above inspection method, the number of fuel assemblies that can be displayed on the image input device at one time is limited to between two and more than ten depending on the configuration of the power plant, so it is necessary to install multiple image input devices or to install them so that they can swing. It is preferable to
Claims 2 and 3 describe this. Furthermore, it is desirable that the fixed position of the image input device be moved by a crane and a hoist, and that the image input device be usable both underwater and in the air.
【０００６】なお、ここでいう切出しとはと画面内の目
的とする映像部分を把握することを云い、以下、強調と
は陰影を強くしたりすること、抽出とは画像内の文字等
の部分を特定すること、認識とは燃料集合体番号を読み
とることを云う。[0006] Note that "cutting out" here refers to grasping the desired video part within the screen, "emphasizing" hereinafter refers to increasing the shading, and "extracting" refers to identifying parts such as characters within the image. Recognition means reading the fuel assembly number.
【０００７】[0007]
【作用】上記検査方法を実施したときには、多数の燃料
集合体を１度に映像入力しうることから、画像入力装置
の移動時間が従来に比べ著しく短くなり、検査時間を大
幅に短縮することが可能となる。[Function] When the above inspection method is implemented, images of a large number of fuel assemblies can be input at one time, so the travel time of the image input device is significantly shorter than in the past, and the inspection time can be significantly shortened. It becomes possible.
【０００８】[0008]
【実施例】以下更に添付図面を参照して、本発明の燃料
集合体の炉内配置の高速検査方法を説明する。DESCRIPTION OF THE PREFERRED EMBODIMENTS The method for high-speed inspection of the arrangement of fuel assemblies in a reactor according to the present invention will be described below with further reference to the accompanying drawings.
【０００９】図１は本発明方法を実施する際に使用する
検査装置の１例を示す説明図であり、炉内を示す左半に
おいて、（１）はクレーン、（２）はホイスト、（３）
は長尺棒、（４）は画像入力装置、（５）は炉心内に林
立する燃料集合体を夫々示し、他方、検査室内を示す図
の右半において、（６）は駆動制御装置、（７）はＣＰ
Ｕ（中央処理装置）、（８）は画像処理装置を夫々示し
ている。また、図中の矢印線は信号線を示している。FIG. 1 is an explanatory diagram showing an example of an inspection device used when implementing the method of the present invention. In the left half showing the inside of the furnace, (1) is a crane, (2) is a hoist, and (3) is a crane. )
(4) is a long rod, (4) is an image input device, (5) is a fuel assembly that stands in the core, and on the other hand, in the right half of the diagram showing the inside of the inspection room, (6) is a drive control device, ( 7) is CP
U (central processing unit) and (8) indicate image processing devices, respectively. Further, arrow lines in the figure indicate signal lines.
【００１０】上記クレーン（１）及びホイスト（２）は
、長尺棒（３）を介して画像処理装置（４）を測定位置
に移動させ固定するものであり、その動作は上記検査室
内の駆動制御装置（６）によって制御される。上記長尺
棒（３）は、画像入力装置（４）を吊り下げると共に、
先端に駆動制御装置（６）により制御されるモーター駆
動の画像入力装置用首振り機構（図示せず）を有してい
る。The crane (1) and hoist (2) move and fix the image processing device (4) to the measurement position via the long rod (3), and their operation is controlled by the drive inside the examination room. Controlled by a control device (6). The long rod (3) suspends the image input device (4) and
It has a motor-driven swinging mechanism (not shown) for an image input device at its tip, which is controlled by a drive control device (6).
【００１１】画像入力装置（４）にはズーム機構を備え
たテレビカメラが用いられ、該装置（４）は、燃料集合
体（５）上部の画像を撮影すると共に、この画像信号を
画像処理装置（８）へ出力する。ズーム機構の制御は駆
動制御装置（６）によって行なわれる。A television camera equipped with a zoom mechanism is used as the image input device (4), and the device (4) takes an image of the upper part of the fuel assembly (5) and sends this image signal to an image processing device. Output to (8). Control of the zoom mechanism is performed by a drive control device (6).
【００１２】駆動制御装置（６）は、ＣＰＵ（７）から
のコマンドにより、上述した各機器の制御を行い、ＣＰ
Ｕ（７）は、画像処理装置で読み取った燃料集合体番号
を入力し、燃料集合体の配列位置の確認を行なうと共に
、駆動制御装置（６）及び画像処理装置（８）にコマン
ドを出力し、各々の動作の制御を行なう。The drive control device (6) controls each of the above-mentioned devices according to commands from the CPU (7).
U (7) inputs the fuel assembly number read by the image processing device, confirms the arrangement position of the fuel assemblies, and outputs commands to the drive control device (6) and image processing device (8). , controls each operation.
【００１３】最後に、画像処理装置（８）は、画像入力
装置（４）からの画像信号を入力し、画像処理技術（集
合体刻印部の切出し，文字部の強調，文字の抽出，文字
の認識）を用いて、燃料集合体上部に刻印英数字にて表
示された燃料集合体番号を読出し、上記ＣＰＵ（７）に
出力する。その動作は、該ＣＰＵ（７）からのコマンド
によって制御される。Finally, the image processing device (8) inputs the image signal from the image input device (4) and performs image processing techniques (cutting out the aggregate stamped part, emphasizing the character part, extracting the character, (recognition) is used to read out the fuel assembly number displayed in alphanumeric characters stamped on the top of the fuel assembly and output it to the CPU (7). Its operation is controlled by commands from the CPU (7).
【００１４】なお、画像及び燃料集合体位置データは、
録画装置及びＣＰＵ（７）の外部記憶装置（何れも図示
省略）に記録される。また画像入力装置（４）のテレビ
カメラは水中、空気中を問わず使用が可能であり、これ
を複数設けることも可能である。[0014] The image and fuel assembly position data are as follows:
The data is recorded in the recording device and the external storage device (not shown) of the CPU (7). Further, the television camera of the image input device (4) can be used regardless of whether it is underwater or in the air, and it is also possible to provide a plurality of television cameras.
【００１５】次に、上記装置を用いた本発明実施例の燃
料集合体炉内配置の高速検査方法を図１もしくは図２の
測定処理シーケンス図（フローチャート）を参照して説
明する。Next, a high-speed inspection method for the arrangement of fuel assemblies in a reactor according to an embodiment of the present invention using the above-mentioned apparatus will be explained with reference to the measurement processing sequence diagram (flowchart) of FIG. 1 or 2.
【００１６】図２に示すように、装置起動後、長尺棒（
３）及びその先端に取付けられた画像入力装置（４）を
クレーン（１）及びホイスト（２）によって測定位置ま
で移動させて固定し、画像入力装置（４）のカメラのピ
ント合わせを行なう。この操作はＣＰＵ（７）からコマ
ンドで駆動制御装置（６）により実行される。その後、
ＣＰＵ（７）からコマンドにより、画像処理装置（８）
は画像入力装置（４）から画像信号を入力し、前記した
画像処理技術を用いて画像内の多数（２体〜十数体）の
燃料集合体番号を読み取り、ＣＰＵ（７）に送る。As shown in FIG. 2, after starting the device, the long rod (
3) and the image input device (4) attached to its tip are moved to the measurement position by the crane (1) and hoist (2) and fixed, and the camera of the image input device (4) is focused. This operation is executed by the drive control device (6) in response to a command from the CPU (7). after that,
The image processing device (8) is activated by a command from the CPU (7).
inputs an image signal from the image input device (4), uses the above-described image processing technology to read a large number (2 to over ten) of fuel assembly numbers in the image, and sends them to the CPU (7).
【００１７】ＣＰＵ（７）は、入力された番号をメモリ
ー内に予め記憶した所定の配置の番号に比較して、燃料
集合体配置の確認を行なう（画像入力装置（４）を複数
台のカメラで構成した場合は、順次カメラを切替えて、
全てのカメラについてこの処理を実行する。）。この後
、ＣＰＵ（７）は、駆動制御装置（６）にコマンドを出
力し、画像入力装置（４）の首振り機構とピント合わせ
を行い、同様に処理することを繰り返し、最初のカメラ
固定位置での燃料集合体番号の確認を処理する。そして
次にカメラ固定位置を移動し、同様の処理を実行する。
以上の処理をすべての燃料集合体について実行して、検
査は終了する。The CPU (7) compares the input number with a predetermined layout number stored in memory in advance to confirm the fuel assembly layout (the image input device (4) is connected to a plurality of cameras). If configured with , switch the cameras sequentially and
Execute this process for all cameras. ). After this, the CPU (7) outputs a command to the drive control device (6), performs focusing with the swing mechanism of the image input device (4), repeats the same process, and sets the camera to the first fixed position. Processes fuel assembly number verification in . Then, the camera fixing position is moved and the same process is executed. The above process is executed for all fuel assemblies and the inspection is completed.
【００１８】以上実施例を説明したが、図２のフローチ
ャートに示すシーケンス（Ａ），（Ｂ）は、画像入力装
置（４）が、カメラ１台によって構成される場合は実行
しない。また本発明方法を炉内燃料集合体の配置検査に
則して説明したが、この方法は集合体貯蔵ピットにおい
ても実施することが可能である。Although the embodiment has been described above, sequences (A) and (B) shown in the flowchart of FIG. 2 are not executed when the image input device (4) is composed of one camera. Furthermore, although the method of the present invention has been described in conjunction with inspection of the arrangement of fuel assemblies in a reactor, the method can also be implemented in an assembly storage pit.
【００１９】[0019]
【発明の効果】以上説明したように、本発明の燃料集合
体炉内配置の高速検査方法は、テレビカメラ等の画像入
力装置を炉心上部に配置し、該画像入力装置にて複数体
の燃料集合体を同時に画像入力すると共に、該画像信号
を画像処理装置にて、集合体刻印部の切出し，文字部の
強調，文字の抽出、文字認識等の画像処理を行い、この
画像または画像信号によって上記複数の燃料集合体各々
の番号を読み取るものであり、多数の燃料集合体を１度
に映像入力しうることから画像入力装置の固定位置移動
や首振りが数回で済み、従来に比べ該画像入力装置の移
動時間が著しく短くなって検査時間も大幅に短縮しうる
との実効を奏するものであり、また、１回の画像入力で
多数体の燃料集合体の検査が可能であるため、ＶＴＲの
録画時間も短縮するとの効果を有するものである。As explained above, in the high-speed inspection method of the arrangement of fuel assemblies in a reactor according to the present invention, an image input device such as a television camera is placed in the upper part of the reactor core, and a plurality of fuel assemblies are detected by the image input device. At the same time, an image of the aggregate is input, and the image signal is processed by an image processing device, such as cutting out the stamped part of the aggregate, emphasizing the character part, extracting characters, character recognition, etc., and using this image or image signal. This device reads the number of each of the plurality of fuel assemblies mentioned above, and since it is possible to input images of many fuel assemblies at once, the image input device does not need to be moved to a fixed position or swung several times. This method is effective in that the moving time of the image input device is significantly shortened, and the inspection time can also be significantly shortened. Also, many fuel assemblies can be inspected with one image input. This has the effect of shortening the recording time of the VTR.
【図１】本発明の燃料集合体炉内配置の高速検査方法を
実施するに際し使用する装置の１例を示す説明図である
。FIG. 1 is an explanatory diagram showing an example of an apparatus used to carry out the method for high-speed inspection of the arrangement of fuel assemblies in a reactor according to the present invention.
【図２】本発明燃料集合体炉内配置の検査方法の１例を
示すフローチャートである。FIG. 2 is a flowchart showing an example of a method for inspecting the arrangement of fuel assemblies in a reactor according to the present invention.
（１） クレーン （２） ホイスト （３） 長尺棒 （４） 画像入力装置 （５） 燃料集合体 （６） 駆動制御装置 （７） ＣＰＵ （８） 画像処理装置 (1) Crane (2) Hoist (3) Long rod (4) Image input device (5) Fuel assembly (6) Drive control device (7) CPU (8) Image processing device
Claims (5)
上部に配置し、該画像入力装置にて複数体の燃料集合体
を同時に画像入力すると共に、該画像信号を画像処理装
置にて、集合体刻印部の切出し，文字部の強調，文字の
抽出、文字認識等の画像処理を行い、この画像または画
像信号によって上記複数の燃料集合体各々の番号を読み
取ることを特徴とする燃料集合体炉内配置の高速検査方
法。Claim 1: An image input device such as a television camera is placed in the upper part of the reactor core, and the image input device simultaneously inputs images of a plurality of fuel assemblies, and the image signal is processed by an image processing device to A fuel assembly reactor interior characterized in that image processing such as cutting out a stamped part, emphasizing a character part, extracting a character, character recognition, etc. is performed, and the number of each of the plurality of fuel assemblies is read based on the image or image signal. A fast inspection method for placement.
を用いた請求項１記載の燃料集合体炉内配置の高速検査
方法。2. The high-speed inspection method for the arrangement of fuel assemblies in a reactor according to claim 1, wherein a plurality of television cameras are used as the image input device.
項１または２記載の燃料集合体炉内配置の高速検査方法
。3. The high-speed inspection method for the arrangement of fuel assemblies in a reactor according to claim 1 or 2, wherein the image input device is swingable.
力装置の固定位置を移動させる請求項１，２、または３
記載の燃料集合体炉内配置の高速検査方法。Claim 4: Claim 1, 2, or 3, wherein the fixed position of the image input device is moved by a crane and a hoist.
The described high-speed inspection method for the arrangement of fuel assemblies in a reactor.
おいても使用可能とした請求項１，２，３、または４記
載の燃料集合体炉内配置の高速検査方法。5. The high-speed inspection method for the arrangement of fuel assemblies in a reactor according to claim 1, 2, 3, or 4, wherein image input can be used either underwater or in the air.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3119407A JP2558186B2 (en) | 1991-04-22 | 1991-04-22 | High-speed inspection method for fuel assembly in-reactor arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3119407A JP2558186B2 (en) | 1991-04-22 | 1991-04-22 | High-speed inspection method for fuel assembly in-reactor arrangement |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04323599A true JPH04323599A (en) | 1992-11-12 |
| JP2558186B2 JP2558186B2 (en) | 1996-11-27 |
Family
ID=14760712
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3119407A Expired - Lifetime JP2558186B2 (en) | 1991-04-22 | 1991-04-22 | High-speed inspection method for fuel assembly in-reactor arrangement |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2558186B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0527079A (en) * | 1991-07-24 | 1993-02-05 | Nuclear Fuel Ind Ltd | Parallel arrangement inspection device for in-reactor fuel arrangement |
| JP2005351659A (en) * | 2004-06-08 | 2005-12-22 | Hitachi Ltd | Fuel monitoring device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63225192A (en) * | 1987-03-14 | 1988-09-20 | 原子燃料工業株式会社 | Fuel-aggregate incore arrangement inspection device |
| JPS63275996A (en) * | 1987-05-08 | 1988-11-14 | Mitsubishi Heavy Ind Ltd | Apparatus for inspecting appearance of fuel assembly |
| JPH0365695A (en) * | 1989-08-02 | 1991-03-20 | Nuclear Fuel Ind Ltd | Optical fiber scope for inspection of nuclear fuel assembly |
-
1991
- 1991-04-22 JP JP3119407A patent/JP2558186B2/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63225192A (en) * | 1987-03-14 | 1988-09-20 | 原子燃料工業株式会社 | Fuel-aggregate incore arrangement inspection device |
| JPS63275996A (en) * | 1987-05-08 | 1988-11-14 | Mitsubishi Heavy Ind Ltd | Apparatus for inspecting appearance of fuel assembly |
| JPH0365695A (en) * | 1989-08-02 | 1991-03-20 | Nuclear Fuel Ind Ltd | Optical fiber scope for inspection of nuclear fuel assembly |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0527079A (en) * | 1991-07-24 | 1993-02-05 | Nuclear Fuel Ind Ltd | Parallel arrangement inspection device for in-reactor fuel arrangement |
| JP2005351659A (en) * | 2004-06-08 | 2005-12-22 | Hitachi Ltd | Fuel monitoring device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2558186B2 (en) | 1996-11-27 |
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