JPH0475405A - Disconnection detector for strand of transmission line - Google Patents
Disconnection detector for strand of transmission lineInfo
- Publication number
- JPH0475405A JPH0475405A JP2185496A JP18549690A JPH0475405A JP H0475405 A JPH0475405 A JP H0475405A JP 2185496 A JP2185496 A JP 2185496A JP 18549690 A JP18549690 A JP 18549690A JP H0475405 A JPH0475405 A JP H0475405A
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- Prior art keywords
- transmission line
- power transmission
- light
- slit
- image
- Prior art date
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- Pending
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 90
- 230000003287 optical effect Effects 0.000 claims abstract description 11
- 238000001514 detection method Methods 0.000 claims description 22
- 238000003384 imaging method Methods 0.000 claims description 16
- 230000005856 abnormality Effects 0.000 abstract description 3
- 238000010191 image analysis Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 7
- 238000004364 calculation method Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000011179 visual inspection Methods 0.000 description 2
- 239000002131 composite material Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- 229910052724 xenon Inorganic materials 0.000 description 1
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 description 1
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Abstract
Description
【発明の詳細な説明】
［産業上の利用分野コ
本発明は、送電線に沿って走行して送電線の素線切れを
検出する装置に係り、特にスリット光による送電線形状
を画像解析してその異常を検出するようにした送電線素
線切れ検出装置に間する。[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to a device that travels along a power transmission line to detect breaks in the power transmission line, and in particular, to an apparatus that runs along a power transmission line and detects breaks in the power transmission line. A power transmission line strand breakage detection device is installed to detect the abnormality.
［従来の技術］
鉄塔間に架設された架空送電線は複数の素線を束ねて構
成されているが、長年月風雨等に晒されるため、断線に
は至らないまでも素線切れが生じている場合がある。素
線切れを放置しておくと将来断線に至る可能性が高いた
め、これを検出することが送電線保守監視業務にとって
非常に重要である。[Conventional technology] Overhead power transmission lines installed between steel towers are made up of multiple wires bundled together, but as they are exposed to wind and rain for many years, the wires often break, even if they do not break. There may be cases. If a broken wire is left untreated, it is highly likely that it will break in the future, so detecting this is extremely important for power transmission line maintenance and monitoring work.
従来、送電線の素線切れの検出は、現場の熟練した作業
者の目視によって行なわれている。Conventionally, detection of wire breakage in power transmission lines has been carried out by visual inspection by skilled workers at the site.
［発明が解決しようとする課題］
上記したように、送電線の素線切れ検出は、人間が目視
によって行っているため、多大な労力、時間および費用
を要するばかりか、人間が行なっているためその判断に
自ずから限界があるという問題があった。[Problems to be Solved by the Invention] As mentioned above, detection of strand breaks in power transmission lines is done visually by humans, which not only requires a great deal of effort, time, and expense, but also requires a lot of effort, time, and expense. The problem was that there were inherent limits to that judgment.
本発明の目的は、送電線上に無人の検出器を走行させる
ことによって、前記した従来技術の欠点を解消し、機械
的かつ精度良く送電線の素線切れを検出することが可能
な送電線素線切れ検出装置を提供することにある。An object of the present invention is to provide a power transmission line element capable of mechanically and accurately detecting strand breakage of a power transmission line by running an unmanned detector on the power transmission line, thereby eliminating the drawbacks of the prior art described above. An object of the present invention is to provide a line breakage detection device.
［課題を解決するための手段］
本発明の送電線素線切れ検出装置は、送電線にこれに沿
って走行自在に取り付けられる本体に、光源からの光を
スリット光に変換して、そのスリット方向が送電線に対
して交差するようにスリット光を投射する光学系と、送
電線に投射された光を撮影する撮像系と、撮像系からの
画像信号を横方向の投影像に変換処理し、これを標準値
と比較して比較結果を記録する信号処理系とを備えたも
のである。[Means for Solving the Problems] The power transmission line strand breakage detection device of the present invention converts light from a light source into slit light, and converts light from a light source into slit light, and attaches the power transmission line to a main body that is movable along the power transmission line. An optical system that projects slit light so that the direction intersects the power transmission line, an imaging system that photographs the light projected onto the power transmission line, and an image signal from the imaging system that converts it into a lateral projected image. , and a signal processing system that compares this with a standard value and records the comparison result.
また、本発明の送電線素線切れ検出装置は、送電線にこ
れに沿って走行自在に取り付けられる本体に、レーザ光
源から発したスポット光を鏡に反射させ、この鏡を振動
させることにより擬似スリット光を生成し、この擬似ス
リット光をそのスリット方向が送電線に対して交差する
ように投射する光学系と、
送電線に投射された光を撮影する撮像系と、撮像系から
の画像信号をディジタル処理し、このディジタル値を標
準値と比較して比較結果を記録する信号処理系とを備え
たものである。In addition, the power transmission line strand breakage detection device of the present invention has a main body that is attached to the power transmission line so that it can freely run along the power line, and a spot light emitted from a laser light source is reflected on a mirror, and the mirror is vibrated to create a false An optical system that generates slit light and projects this pseudo slit light so that the slit direction intersects the power transmission line, an imaging system that photographs the light projected onto the power transmission line, and an image signal from the imaging system. The system is equipped with a signal processing system that digitally processes the digital value, compares the digital value with a standard value, and records the comparison result.
［作用コ
光学系によるスリット光が、そのスリット方向を送電線
に対して交差するように送電線に投射されると、送電線
上の投射光の形状は楕円弧とじて撮像系に撮影される。[Operation] When the slit light from the optical system is projected onto the power transmission line with the slit direction intersecting the power transmission line, the shape of the projected light on the power transmission line is captured by the imaging system as an elliptical arc.
撮像系に撮影されたこの楕円弧の画像信号が、これを横
方向から見た投影像に変換処理されると、対称性のある
楕円形状が対称性のないピークをもつ形状になるため、
送電線が示す標準形状と素線切れのある送電線か示す形
状との比較が容易になる。When the image signal of this elliptical arc captured by the imaging system is converted into a projected image viewed from the side, the symmetrical elliptical shape becomes a shape with an asymmetrical peak.
It becomes easy to compare the standard shape of a power transmission line and the shape of a power transmission line with a broken wire.
信号処理系により変換処理された横方向の投影像が標準
値と比較され、その判定結果か記録される。標準形状と
のずれがない場合には送電線に素線切れがなく、標準形
状とのずれがある場合には送電線に素線切れが生じてい
ると判定される。The horizontal projection image converted by the signal processing system is compared with a standard value, and the determination result is recorded. If there is no deviation from the standard shape, it is determined that there is no wire breakage in the power transmission line, and if there is deviation from the standard shape, it is determined that the power transmission line has a wire breakage.
このような判定は送電線上を本体が走行するため、対象
となる送電線の全長に渡って行なわれ、判定結果には判
定した送電線の位置を特定する距離も併せて記憶される
。Since the main body runs on the power transmission line, such determination is performed over the entire length of the target power transmission line, and the determination result also stores the distance for specifying the determined position of the power transmission line.
従って、送電線形状の異常から送電線の素線切れを機械
的、かつ精度良く検出てきる。Therefore, it is possible to mechanically and accurately detect strand breakage in a power transmission line based on an abnormality in the shape of the power transmission line.
また、光学系によるレーザ光源から発したスポット光が
、振動する鏡に反射されると擬似スリット光が発生する
。この擬似スリット光が、そのスリット方向を送電線に
対して交差するように送電線に投射されると、送電線上
の投射光の形状は楕円弧として撮像系に撮影される。Further, when the spot light emitted from the laser light source of the optical system is reflected by the vibrating mirror, pseudo slit light is generated. When this pseudo slit light is projected onto the power transmission line with the slit direction intersecting the power transmission line, the shape of the projected light on the power transmission line is captured by the imaging system as an elliptical arc.
撮像系に撮影されたこの楕円状の画像信号がディジタル
処理されて２値化ないし多値化されると、対称性のある
楕円形状が数値として把握される。When this elliptical image signal captured by the imaging system is digitally processed and converted into a binary or multi-valued signal, the symmetrical elliptical shape is understood as a numerical value.
信号処理系により変換処理されたデータが標準値と比較
され、その判定結果が記録される。標準値とのずれに応
じて、素線切れの有無がわかり、素線切れがあると判定
された場合には、ずれの大きさから素線切れの度合いも
分かる。The data converted by the signal processing system is compared with a standard value, and the determination result is recorded. The presence or absence of wire breakage can be determined based on the deviation from the standard value, and if it is determined that there is a wire breakage, the degree of wire breakage can also be determined from the magnitude of the deviation.
［実施例コ 以下、本発明の実施例を図面に基づいて説明する。[Example code] Embodiments of the present invention will be described below based on the drawings.
第１実施例
第１図は本発明の送電線素線切れ検出装置の第１実施例
の正断面図、第２図は同じく側面図である。First Embodiment FIG. 1 is a front sectional view of a first embodiment of the power transmission line breakage detection device of the present invention, and FIG. 2 is a side view of the same.
１はシールドボックス状に形成された検出装置本体であ
り、この本体１を貫くように送電線７が挿通される。こ
の送電線７をきよう持して本体を送電線７に装着する一
対の車輪８，８か、本体１の前後に設けられる。これら
車輪８のいずれかにこれを駆動輪とするために、電動機
あるいはガソリンエンジンなどによる動力機構９が取り
付けられている。これらによって、本体１は送電線７上
を自動走行する。動力機構９は遠隔操縦可能にすること
が好ましい。Reference numeral 1 denotes a main body of the detection device formed in the shape of a shield box, and a power transmission line 7 is inserted through the main body 1 . A pair of wheels 8, 8, which hold the power transmission line 7 and attach the main body to the power transmission line 7, are provided at the front and rear of the main body 1. A power mechanism 9 such as an electric motor or a gasoline engine is attached to one of these wheels 8 in order to use it as a driving wheel. Due to these, the main body 1 automatically travels on the power transmission line 7. The power mechanism 9 is preferably remotely controllable.
また、図示しないが任意の車輪８にその回転数を検出す
る回転計を取り付け、車輪の回転数から距離を算出する
ことにより、画像データと送電線７の位置を対応付けら
れるようにしである。Further, although not shown, a tachometer for detecting the rotation speed of any wheel 8 is attached to the wheel 8, and the distance is calculated from the rotation speed of the wheel, thereby making it possible to associate the image data with the position of the power transmission line 7.
なお、送電線７に装着された本体ｌは、反転してもかま
わないが、その重心位置を一方に偏倚させることによっ
て送電線廻りに回転せずに安定した姿勢を保つことが望
ましい。Although the main body l attached to the power transmission line 7 may be inverted, it is preferable to maintain a stable posture without rotating around the power transmission line by shifting its center of gravity to one side.
また、本体１の内部には、タングステンランプやキセノ
ンランプなどの光源２、光源２からの光を平行光線に変
換するレンズ３、その平行光線をスリット光Ｓに変換す
るスリット４が取り付けられている。これら光源２．レ
ンズ３．スリット４によって光学系が構成され、この光
学系によってスリット光Ｓのスリット方向が送電線７に
対して直交するように、図面斜上方からスリット光Ｓが
送電線７に投射される。Furthermore, inside the main body 1, a light source 2 such as a tungsten lamp or a xenon lamp, a lens 3 that converts the light from the light source 2 into parallel rays, and a slit 4 that converts the parallel rays into slit light S are attached. . These light sources 2. Lens 3. The slit 4 constitutes an optical system, and the optical system projects the slit light S onto the power transmission line 7 from diagonally upward in the figure so that the slit direction of the slit light S is orthogonal to the power transmission line 7.
送電線７に対して光学系と同じ側の対向する位置に、撮
像系を構成するテレビカメラ５が取り付けられ、これに
よりスリット光Ｓが投射された送電線７が撮影される。A television camera 5 constituting an imaging system is attached to a position facing the power transmission line 7 on the same side as the optical system, and the power transmission line 7 onto which the slit light S is projected is photographed.
テレビカメラ５によって撮影された画像は、横方向の投
影像に変換処理して、これを標準値と比較して比較結果
を記録する信号処理装置６へ送られる。The image taken by the television camera 5 is converted into a horizontal projection image, and sent to a signal processing device 6 which compares this with a standard value and records the comparison result.
撮像系としてはテレビカメラの他に、イメージセンサな
どの手段を用いてもよい。なお、これらの装置は図示し
ない電源から電源を供給される。As the imaging system, in addition to a television camera, means such as an image sensor may be used. Note that power is supplied to these devices from a power source (not shown).
第３図は信号処理装置６の構成図である。テレビカメラ
５て撮影された画像のアナログ信号は、Ａ／Ｄ変換器１
０へ送られ、ディジタル画像に変換される。この画像は
横方向の投影処理装置１２へ送られ、横方向の投影処理
が施される。ここで、横方向の投影処理を施す理由に付
いて述べる。FIG. 3 is a configuration diagram of the signal processing device 6. As shown in FIG. The analog signal of the image taken by the television camera 5 is sent to the A/D converter 1.
0 and converted into a digital image. This image is sent to a lateral projection processing device 12 and subjected to lateral projection processing. Here, the reason for performing horizontal projection processing will be described.
円柱状または円筒状の物体である素線切れのない送電線
７に、第４図に示すように斜方上からスリット光Ｓを投
射した場合は、送電線７上に描かれる照射形状（スポッ
ト）は楕円弧Ｃなる。したがって、送電線７に投射され
た光を斜右上から撮影すると、第５図に示、すように、
長軸を縦方向に持つ楕円を横に切った対称性を持つ楕円
弧画像１５として撮影される。この画像１５の横方向の
投影画像は第６図に示すように、楕円弧の始点から緩や
かに立上がり、頂点近傍で急激立下がる非対称性の画像
になる。When the slit light S is projected obliquely onto the power transmission line 7, which is a cylindrical or cylindrical object with no wire breaks, as shown in FIG. ) becomes an elliptical arc C. Therefore, if the light projected onto the power transmission line 7 is photographed diagonally from the upper right, as shown in FIG.
The image is captured as a symmetrical elliptical arc image 15 obtained by cutting an ellipse with its long axis in the vertical direction horizontally. As shown in FIG. 6, the horizontally projected image of this image 15 is an asymmetric image that rises gently from the starting point of the elliptical arc and falls sharply near the apex.
一方、素線切れにより送電線表面にくぼみなどが存在し
た場合、撮影される画像は、たとえば第７図の様に楕円
弧頂点の一部が凹んで対称性を失っているものとすると
、横方向の投影画像は第８図に示すように、急激に立下
がる点が早く現れる。On the other hand, if there is a dent on the surface of the power transmission line due to a wire breakage, the image taken will be in the lateral direction. As shown in FIG. 8, in the projected image of , sharply falling points appear early.
このように、素線切れのない送電線画像と素線切れのあ
る送電線画像とては、非対称性の画像に変換すると、そ
の画像変化が強調されてその変化を検出しやすくなる。In this way, when a power transmission line image without wire breakage and a power transmission line image with wire breakage are converted into asymmetric images, the change in the image is emphasized and the change becomes easier to detect.
横方向の投影処理画像が比較判定処理装置１３に入力さ
れると、標準データと比較されて上記画像変化の有無が
判定される。その判定結果は記録装置１４へ送られ記録
される。この記録は検出終了後、読み出されて最終判断
に委ねられる。When the horizontal projection processed image is input to the comparison and determination processing device 13, it is compared with standard data to determine whether or not there is any change in the image. The determination result is sent to the recording device 14 and recorded. After the detection is completed, this record is read out and left to the final judgment.
なお、第３図において、横方向の投影処理装置１２及び
比較判定処理装置１３は、電子回路またはマイクロプロ
セッサ等で構成することができる。In addition, in FIG. 3, the lateral projection processing device 12 and the comparison determination processing device 13 can be constructed from an electronic circuit, a microprocessor, or the like.
第２実施例
第９図は本発明の送電線素線切れ検出装置の第２実施例
の正断面図、第１０図は同じく側面図である。第１実施
例と異なる点は、光源としてスポット光の発生が可能な
レーザ光源２２を使用し、振動装置２３に取り付けられ
た鏡２４にレーザ光源２２からのスポット光を当てるよ
うにした点である。２１．２５〜２９の各構成要素につ
いては、第１図における１、５〜９と同様である。Second Embodiment FIG. 9 is a front sectional view of a second embodiment of the power transmission line breakage detection device of the present invention, and FIG. 10 is a side view of the same. The difference from the first embodiment is that a laser light source 22 capable of generating spot light is used as a light source, and the spot light from the laser light source 22 is applied to a mirror 24 attached to a vibrating device 23. . 21. Each component of 25 to 29 is the same as 1, 5 to 9 in FIG.
但し、信号処理装置２６は後述するように、第３図に示
す第１実施例とは異なる構成を一部に取っている。However, as will be described later, the signal processing device 26 has a partially different configuration from the first embodiment shown in FIG.
さて、本実施例では、レーザ光源２２から発せられたス
ポット光は、振動装置２３によって高速振動する鏡２４
で反射され、送電線２７に投射される。ここで、レーザ
光源２２から発せられた光は、あたかもスリット光のよ
うに送電線２７に投射される。送電線２７に投射された
擬似スリット光Ｒをテレビカメラ２５によって撮影する
。テレビカメラ２５で撮影された画像は、信号処理装置
２６へ送られる。Now, in this embodiment, the spot light emitted from the laser light source 22 is transmitted to the mirror 24 which is vibrated at high speed by the vibrating device 23.
and is projected onto the power transmission line 27. Here, the light emitted from the laser light source 22 is projected onto the power transmission line 27 as if it were a slit light. The pseudo slit light R projected onto the power transmission line 27 is photographed by a television camera 25. Images taken by the television camera 25 are sent to a signal processing device 26.
第１１図は、信号処理装置２６の構成図である。FIG. 11 is a configuration diagram of the signal processing device 26.
テレビカメラ２５で撮影された画像が入力され、ＡＤ変
換器３０へ送られ、ディジタル画像に変換される。その
画像は２値化処理装置３１へ送られ、レーザ光の投射さ
れているスポット部分が抽出される。送電線２７に曹線
切れがなく完全な円柱である゛ならば、テレビカメラ２
５によって撮影されたレーザ光の画像は、楕円弧となり
、素線切れがある場合には、楕円弧とはならない。２値
化処理装置３１の出力データは、楕円との異差計算装置
３２へ送られ、楕円との異差が計算され、判定装置３３
へ送られる。判定装置３３ては、楕円との異差データか
ら素線切れかどうかが判断され、そのデータが記録装置
３４へ送られ、記録される。An image photographed by a television camera 25 is input, sent to an AD converter 30, and converted into a digital image. The image is sent to the binarization processing device 31, and the spot portion on which the laser beam is projected is extracted. If the power transmission line 27 is a perfect cylinder with no wire breaks, the television camera 2
The image of the laser beam photographed by No. 5 becomes an elliptical arc, and if there is a break in the strand, it will not become an elliptical arc. The output data of the binarization processing device 31 is sent to the difference calculation device 32 with respect to the ellipse, the difference with the ellipse is calculated, and the difference with the ellipse is calculated.
sent to. The determining device 33 determines whether or not the strand is broken based on the difference data with respect to the ellipse, and the data is sent to the recording device 34 and recorded.
このように第２実施例の送電線素線切れ検出装置は、撮
影した画像の楕円との異差を計算し・ている。従って、
数量的ここ正確に素線切れの度合を測定できる。In this manner, the power transmission line wire breakage detection device of the second embodiment calculates the difference between the captured image and the ellipse. Therefore,
Quantitatively, it is possible to accurately measure the degree of wire breakage.
なお、第１１図において、２値化処理装置３１゜楕円と
の異差計算装置３２９判定装置３３は、電子回路または
マイクロコンピュータで構成することができる。In FIG. 11, the binarization processing device 31, the difference calculation device 329 with respect to the ellipse, and the determination device 33 can be constructed from an electronic circuit or a microcomputer.
以上述べたように本実施例によれば、複雑な画像解析を
用いず、スリット光を用いた非常に簡易な画像解析によ
り、送電線の素線切れ検出が高速かつ自動的に行なわれ
るので、人間が目視によって行っていた従来の検出方法
に比して、労力、時間および費用を格段に節減でき、熟
練を要することなく検出精度もきわめて高くなる。特に
、鉄塔間に架設された架空地線や光ファイバ複合架空地
線の索線切れに用いれば、高電圧を伴わないため、信頼
性が飛躍的に向上する。As described above, according to this embodiment, wire breaks in power transmission lines can be detected quickly and automatically by very simple image analysis using slit light without using complicated image analysis. Compared to conventional detection methods in which humans perform visual inspection, labor, time, and cost can be significantly reduced, and detection accuracy is extremely high without requiring any skill. In particular, if used to break cables of overhead ground wires installed between steel towers or optical fiber composite overhead ground wires, reliability will be dramatically improved because high voltage is not involved.
なお、上記実施例では、架空送電線の素線切れについて
説明したが、本発明はこれに限定されるものではなく、
地線や架設前の送電線の検査についても適用することが
できる。In addition, although the above-mentioned example explained the strand breakage of the overhead power transmission line, the present invention is not limited to this.
It can also be applied to inspections of ground wires and power transmission lines before installation.
また、上記実施例では、１組の光学系、撮像系を本体に
設けた場合について述べたが、これを２組さらには３組
にして送電線の周方向の検出面を増やすことにより、よ
り精度を向上させるようにしても良い。In addition, in the above embodiment, a case was described in which one set of optical system and imaging system were provided in the main body, but by increasing the number of detection surfaces in the circumferential direction of the power transmission line by making two or even three sets, it is possible to The accuracy may be improved.
［発明の効果コ 本発明によれば次のような優れた効果を発揮する。[Effects of invention According to the present invention, the following excellent effects are exhibited.
（１）請求項１に記載の送電線素線切れ検出装置によれ
ば、送電線の緊線切れを人手によらず、機械的かつ精度
良く検出できる。(1) According to the power transmission line strand breakage detection device according to claim 1, a wire breakage in a power transmission line can be detected mechanically and accurately without manual intervention.
（２）請求項２に記載の送電線素線切れ検出装置によれ
ば、送電線の素線切れを機械的かつ精度良く検出でき、
かつ素線切れの度合い測定できる。(2) According to the power transmission line strand breakage detection device according to claim 2, a strand breakage of a power transmission line can be detected mechanically and accurately;
Also, the degree of wire breakage can be measured.
第１図は本発明の送電線素線切れ検出装置の第１実施例
を示す正断図面、第２図は本発明の送電線素線切れ検出
装置の第１実施例を示す側面図、第３図は、信号処理装
置の構成図、第４図は送電線にスリット光を投射したと
きに形成される楕円弧スポットの説明図、第５７及び第
７図はテレビカメラにより撮影さへる画像例の説明図、
第６図及び第８図は横方向の投影画像の説明図、第９図
は本発明の送電線素線切れ検出装置の第２実施例を示す
正断図面、第１０図は本発明の送電線素線切れ検出装置
の第２実施例を示す判断図面、第１１図は信号処理装置
の構成図である。
１は本体、２は光源、３はレンズ、４はスリット、５は
テレビカメラ、６は信号処理装置、８は車輪、９は動力
機構、１０はＡ／Ｄ変換器、Ｉ２は横方向の投影処理装
置、１３は比較判定処理装置、１４は記録装置、２１は
本体、２２はレーザ光源、２３は振動装置、２４は鏡、
２５はテレビカメラ、２６は信号処理回路、２８は車輪
、２９は動力機構、３０はＡ／Ｄ変換器、３１は２値化
処理装置、３２は楕円との異差計算装置、３３は判定装
置、３４は記録装置、Ｃは楕円弧上のスポット、Ｒは擬
似スリット光、Ｓはスリット光である。
第３図
楕円弧スネ゛フトの説明図
第４図
第１実施例の正断面図
第１図
第１実施例の側面図
第２図
楕円弧画像
横方向の投影図
第５図
第６図
第７図
第８図
第９図
第１θ図
第１１
図FIG. 1 is a front sectional view showing a first embodiment of the power transmission line breakage detection device of the present invention, and FIG. 2 is a side view showing the first embodiment of the power transmission line breakage detection device of the present invention. Figure 3 is a configuration diagram of the signal processing device, Figure 4 is an explanatory diagram of an elliptical arc spot formed when slit light is projected onto a power transmission line, and Figures 57 and 7 are examples of images taken by a television camera. An explanatory diagram of
6 and 8 are explanatory diagrams of lateral projected images, FIG. 9 is a front cross-sectional view showing a second embodiment of the power transmission line breakage detection device of the present invention, and FIG. FIG. 11 is a judgment drawing showing a second embodiment of the electric wire breakage detection device, and FIG. 11 is a configuration diagram of the signal processing device. 1 is the main body, 2 is a light source, 3 is a lens, 4 is a slit, 5 is a television camera, 6 is a signal processing device, 8 is a wheel, 9 is a power mechanism, 10 is an A/D converter, I2 is a lateral projection 13 is a comparison and judgment processing device, 14 is a recording device, 21 is a main body, 22 is a laser light source, 23 is a vibration device, 24 is a mirror,
25 is a television camera, 26 is a signal processing circuit, 28 is a wheel, 29 is a power mechanism, 30 is an A/D converter, 31 is a binarization processing device, 32 is a difference calculation device with an ellipse, and 33 is a determination device , 34 is a recording device, C is a spot on an elliptical arc, R is a pseudo slit light, and S is a slit light. Fig. 3: Explanation of elliptical arc snft Fig. 4: Front sectional view of the first embodiment Fig. 1: Side view of the first embodiment Fig. 2: Lateral projection of the elliptical arc image Fig. 5: Fig. 6 Fig. 7 Figure 8 Figure 9 Figure 1θ Figure 11
Claims (1)
体に、 光源からの光をスリット光に変換して、そのスリット方
向が送電線に対して交差するようにスリット光を投射す
る光学系と、 送電線に投射された光を撮影する撮像系と、撮像系から
の画像信号を横方向の投影像に変換処理し、これを標準
値と比較して比較結果を記録する信号処理系と を備えたことを特徴とする送電線素線切れ検出装置。 ２、送電線にこれに沿って走行自在に取り付けられる本
体に、 レーザ光源から発したスポット光を鏡に反射させ、この
鏡を振動させることにより擬似スリット光を生成し、こ
の擬似スリット光をそのスリット方向が送電線に対して
交差するように投射する光学系と、 送電線に投射された光を撮影する撮像系と、撮像系から
の画像信号をディジタル処理し、このディジタル値を標
準値と比較して比較結果を記録する信号処理系と を備えたことを特徴とする送電線素線切れ検出装置。[Scope of Claims] 1. A main body that is attached to a power transmission line so as to be able to travel along the power transmission line converts light from a light source into slit light, and a slit light that converts light from a light source into a slit light such that the slit direction crosses the power transmission line. An optical system that projects the light, an imaging system that photographs the light projected onto the power transmission line, and an imaging system that converts the image signal from the imaging system into a horizontal projected image, compares it with standard values, and records the comparison results. What is claimed is: 1. A power transmission line strand breakage detection device, comprising: a signal processing system for detecting power transmission line breakage; 2. The main unit is attached to a power transmission line so that it can run freely along it, and the spot light emitted from the laser light source is reflected on a mirror, which vibrates to generate pseudo slit light. An optical system projects the light so that the slit direction intersects the power transmission line, an imaging system photographs the light projected onto the power transmission line, and the image signal from the imaging system is digitally processed and this digital value is used as a standard value. A power transmission line breakage detection device comprising a signal processing system for comparing and recording comparison results.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2185496A JPH0475405A (en) | 1990-07-13 | 1990-07-13 | Disconnection detector for strand of transmission line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2185496A JPH0475405A (en) | 1990-07-13 | 1990-07-13 | Disconnection detector for strand of transmission line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0475405A true JPH0475405A (en) | 1992-03-10 |
Family
ID=16171788
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2185496A Pending JPH0475405A (en) | 1990-07-13 | 1990-07-13 | Disconnection detector for strand of transmission line |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0475405A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5503431A (en) * | 1994-02-25 | 1996-04-02 | Fuji Kiko Co., Ltd. | Adjustable energy absorbing steering column with adjustment disabled during collision |
| US5888139A (en) * | 1996-04-11 | 1999-03-30 | Kabushiki Kaisha Yamada Seisakusho | Elastic shaft coupling apparatus |
| CN103558219A (en) * | 2013-11-19 | 2014-02-05 | 国家电网公司 | Power cable service life monitoring realization method based on shielding layer wave carrier communication |
| CN106737738A (en) * | 2016-12-23 | 2017-05-31 | 上海海事大学 | For the robot of cable fault detection |
| JP2020014277A (en) * | 2018-07-13 | 2020-01-23 | 矢崎エナジーシステム株式会社 | Wire inspection device |
| JP2020014276A (en) * | 2018-07-13 | 2020-01-23 | 矢崎エナジーシステム株式会社 | Wire inspection device |
| CN111537440A (en) * | 2020-05-18 | 2020-08-14 | 杭州云淡包装有限公司 | High-voltage cable outer package damage inspection equipment with automatic positioning function |
| CN111952884A (en) * | 2020-08-28 | 2020-11-17 | 红相股份有限公司 | General investigation and reexamination detection method for high-voltage line |
-
1990
- 1990-07-13 JP JP2185496A patent/JPH0475405A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5503431A (en) * | 1994-02-25 | 1996-04-02 | Fuji Kiko Co., Ltd. | Adjustable energy absorbing steering column with adjustment disabled during collision |
| US5888139A (en) * | 1996-04-11 | 1999-03-30 | Kabushiki Kaisha Yamada Seisakusho | Elastic shaft coupling apparatus |
| CN103558219A (en) * | 2013-11-19 | 2014-02-05 | 国家电网公司 | Power cable service life monitoring realization method based on shielding layer wave carrier communication |
| CN106737738A (en) * | 2016-12-23 | 2017-05-31 | 上海海事大学 | For the robot of cable fault detection |
| JP2020014277A (en) * | 2018-07-13 | 2020-01-23 | 矢崎エナジーシステム株式会社 | Wire inspection device |
| JP2020014276A (en) * | 2018-07-13 | 2020-01-23 | 矢崎エナジーシステム株式会社 | Wire inspection device |
| CN111537440A (en) * | 2020-05-18 | 2020-08-14 | 杭州云淡包装有限公司 | High-voltage cable outer package damage inspection equipment with automatic positioning function |
| CN111952884A (en) * | 2020-08-28 | 2020-11-17 | 红相股份有限公司 | General investigation and reexamination detection method for high-voltage line |
| CN111952884B (en) * | 2020-08-28 | 2021-07-23 | 红相股份有限公司 | General investigation and reexamination detection method for high-voltage line |
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