JPH0228029A - Aerial wiring inspection device - Google Patents
Aerial wiring inspection deviceInfo
- Publication number
- JPH0228029A JPH0228029A JP17496288A JP17496288A JPH0228029A JP H0228029 A JPH0228029 A JP H0228029A JP 17496288 A JP17496288 A JP 17496288A JP 17496288 A JP17496288 A JP 17496288A JP H0228029 A JPH0228029 A JP H0228029A
- Authority
- JP
- Japan
- Prior art keywords
- overhead wire
- wiring
- pantograph
- parallel beam
- screen
- 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.)
- Pending
Links
- 238000007689 inspection Methods 0.000 title claims description 17
- 238000012545 processing Methods 0.000 claims abstract description 9
- 238000005259 measurement Methods 0.000 claims description 16
- 238000003384 imaging method Methods 0.000 claims description 11
- 230000001681 protective effect Effects 0.000 claims description 2
- 238000005299 abrasion Methods 0.000 abstract 1
- 230000000903 blocking effect Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- 230000003287 optical effect Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 241001424688 Enceliopsis Species 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- SEPPVOUBHWNCAW-FNORWQNLSA-N (E)-4-oxonon-2-enal Chemical compound CCCCCC(=O)\C=C\C=O SEPPVOUBHWNCAW-FNORWQNLSA-N 0.000 description 1
- LLBZPESJRQGYMB-UHFFFAOYSA-N 4-one Natural products O1C(C(=O)CC)CC(C)C11C2(C)CCC(C3(C)C(C(C)(CO)C(OC4C(C(O)C(O)C(COC5C(C(O)C(O)CO5)OC5C(C(OC6C(C(O)C(O)C(CO)O6)O)C(O)C(CO)O5)OC5C(C(O)C(O)C(C)O5)O)O4)O)CC3)CC3)=C3C2(C)CC1 LLBZPESJRQGYMB-UHFFFAOYSA-N 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
Landscapes
- Length Measuring Devices By Optical Means (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は電気鉄道において、列車に電力を供給するため
の架線の保守管理の為に、走行しながら架線の摩耗量を
、測定するための架線検査装置に関するものである。[Detailed Description of the Invention] [Industrial Application Field] The present invention is a method for measuring the amount of wear on overhead wires while running in order to maintain and manage the overhead wires for supplying electric power to trains in electric railways. The present invention relates to an overhead wire inspection device.
従来の鉄道における架線検査装置は、第２図の例に示さ
れるように、パンタグラフとのｆＭ動によって摩耗した
架線３の摺動面の幅を測定し、その幅から残存径を算定
するものであった。第２図の検査装置は新幹線などの架
線検査に用いられている最新の架線検査装置の原理図で
あり、レーザ光線発生器１２によって発生したレーザ光
線を回転ミラー装置１３を介して架線３の摺動面に照射
し、摺動面における反射光をハーフミラ−１４を介して
レーザ光線センサ１５で受光する。この構成において、
回転ミラー装置１３が回転することによりレーザ光が下
から架線３をスキャンする事になり、レーザ光線センサ
１５には架線３の摺動面の幅に比例した時間だけ反射光
が受信される。このレーザ光線センサ１５への反射光信
号を処理して架線径を算定する。As shown in the example in Figure 2, conventional railway overhead wire inspection equipment measures the width of the sliding surface of the overhead wire 3 that has been worn out due to fM movement with the pantograph, and calculates the remaining diameter from that width. there were. The inspection device shown in FIG. 2 is a principle diagram of the latest overhead wire inspection device used in the inspection of overhead wires such as Shinkansen trains. The laser beam sensor 15 receives the reflected light from the sliding surface via the half mirror 14. In this configuration,
As the rotating mirror device 13 rotates, the laser beam scans the overhead wire 3 from below, and the laser beam sensor 15 receives the reflected light for a period of time proportional to the width of the sliding surface of the overhead wire 3. The reflected light signal to the laser beam sensor 15 is processed to calculate the diameter of the overhead wire.
上記のような従来の架線検査装置においては、架線の摺
動面の幅から間接的に摩耗量と残存径を算定しているが
、この方式においては摺動面の幅とＩｇＥ耗量の関係は
非線形であり、摩耗量が大きくなるにつれて測定積度が
悪くなる。特に、摩耗量が架線直径の半分近くになった
場合は、摩耗量の変化が全＜（コ動面の幅に反映しなく
なってしまう。架線保守管理のうえでは架線の摩耗が進
展した状態はど精度の高い測定が必要となり、上記のよ
うな摺動面幅測定方式の精度特性ぼ本質的な問題となっ
ていた。In the conventional overhead wire inspection equipment described above, the amount of wear and remaining diameter are calculated indirectly from the width of the sliding surface of the overhead wire, but in this method, the relationship between the width of the sliding surface and the amount of IgE wear is calculated indirectly. is non-linear, and as the amount of wear increases, the measured density becomes worse. In particular, when the amount of wear becomes nearly half the diameter of the overhead wire, the change in the amount of wear will no longer be reflected in the width of the co-moving surface. Therefore, the accuracy characteristics of the above-mentioned sliding surface width measurement method have become a fundamental problem.
また、実際に使用されている架線の摺動面は幾何学的に
算定される理想的な面とは異なり、ばりと呼ばれる横方
向へのはみ出し部分や摺動面表面の傷や汚れなど、測定
結果の誤差を生ずる多くの要因が存在し、実際の検査結
果の信頼度が低かった。In addition, the sliding surfaces of overhead wires that are actually used differ from the ideal surfaces calculated geometrically, and there are parts called burrs that protrude in the lateral direction, scratches and dirt on the surface of the sliding surfaces, etc. There were many factors that could cause errors in the results, and the reliability of the actual test results was low.
さらに、実際に鉄道において設置されている架線におい
ては、測定する車両にたいして架線の位置が相対的にか
なり広い範囲で移動する。したがって、第２図のような
複雑な光学系を車上に設置し、架線の位置変化に対応す
るためにはさらに多くの付加的な対応処置を講じる必要
があり、実際の架線検査システムは大変高価な物となっ
ζしまう上に、大規模な設備となるため専用の車両を必
要とし、営業車両による日常的な検査は不可能であると
いう問題があった。Furthermore, in the overhead wires actually installed on railways, the position of the overhead wires moves over a relatively wide range with respect to the vehicle being measured. Therefore, it is necessary to install a complex optical system on the vehicle as shown in Figure 2, and to take many additional measures to respond to changes in the position of the overhead wires, making the actual overhead wire inspection system difficult. In addition to being expensive, it requires a dedicated vehicle because it is a large-scale facility, and there are problems in that it is impossible to perform routine inspections using commercial vehicles.
前項の課題を解決するための手段を第３図を用いて説明
する。即ち鉄道車両内の平行光線投光２：（用電源装置
１１から電源を供給される平行光線投光器２をパンタグ
ラフ上面板１の一端に設置し、平行光線を測定対象とな
る架線３に投射する。パンタグラフ上面板１の反対側の
端部に太陽光線遮断フィルタ４．半透明スクリーン５及
びその後方に撮像装置６を設置し、架線３によって生じ
る影が太陽光線遮断フィルタ４を経てで透明スクリーン
５に投影するようにする。この映像を半透明スクリーン
５の後方から撮像装置６により撮像し、その映像信号を
計算機処理することより架線３の残存径を算定する。Means for solving the problem mentioned in the previous section will be explained using FIG. 3. That is, parallel beam projector 2 in the railway vehicle: (Parallel beam projector 2, which is supplied with power from a power supply device 11, is installed at one end of the pantograph top plate 1, and projects parallel beams onto the overhead wire 3 to be measured. A sun ray blocking filter 4 and a semi-transparent screen 5 are installed at the opposite end of the pantograph top plate 1, and an imaging device 6 is installed behind them. This image is captured by an imaging device 6 from behind the translucent screen 5, and the remaining diameter of the overhead wire 3 is calculated by computer processing the image signal.
前記に述べた手段により、架線の残存径を直接測定する
ために、架線の横方向から平行光線を投射し、光路の途
中にある架線によって生じる影を反対側に設置した半透
明スクリーン上に投影する。In order to directly measure the remaining diameter of the overhead wire using the method described above, a parallel beam of light is projected from the side of the overhead wire, and the shadow caused by the overhead wire in the middle of the optical path is projected onto a translucent screen installed on the opposite side. do.
スクリーン上に生じた架線の残存径に応じた影の像を、
スクリーンの後方の撮像装置により撮像し、その映像信
号から架線の残存径を算定する。The image of the shadow created on the screen according to the remaining diameter of the overhead wire,
An image is taken by an imaging device behind the screen, and the remaining diameter of the overhead wire is calculated from the video signal.
本発明においては真横から平行光線を投射し、架線の射
影から架線の残存径を直接測定することとなり、架線の
摺動面の幅を測り架線の残存径を算定する場合に生じる
誤差を避けることができる。In the present invention, a parallel light beam is projected directly from the side, and the remaining diameter of the overhead wire is directly measured from the projection of the overhead wire, thereby avoiding errors that occur when calculating the remaining diameter of the overhead wire by measuring the width of the sliding surface of the overhead wire. I can do it.
また、検査装置の測定系の全てを、架線を一定の力で押
し上げているパンタグラフ上面板に固定した。これによ
り、架線の縦方向の移動にたいしては、測定系全体がパ
ンタグラフ上面板と一体になって追随移動するため、架
線の縦方向移動に対する特別な処理の必要がなく、それ
に起因する誤差も生じない。In addition, all of the measurement systems of the inspection device were fixed to the top plate of the pantograph, which was pushing up the overhead wire with a constant force. As a result, the entire measurement system moves together with the pantograph top plate to follow the vertical movement of the overhead wire, so there is no need for special processing for the vertical movement of the overhead wire, and no errors occur due to it. .
また、架線の横方向の移動に対する影響の排除のため、
横方向からの投射光を平行光線とした。In addition, in order to eliminate the influence on the lateral movement of overhead wires,
The projected light from the lateral direction was made into parallel light rays.
これにより架線がパンタグラフ上を横方１ｉｉ１４こ移
動し°ζも、半透明スクリーン上に生じる架線の↓の大
きさは変化せず、全体として架線の移動による測定誤差
の発生を防ぐ事ができる。As a result, even if the overhead wire moves 1ii14 degrees horizontally on the pantograph, the size of the ↓ of the overhead wire on the translucent screen does not change, and it is possible to prevent measurement errors caused by the movement of the overhead wire as a whole.
本発明の実施例について図にもとすいて説明する。第１
図において、測定用のパンタグラフのパンタグラフ上面
板１上に、平行光線投光器２と太陽光線遮断フィルタ４
と半透明スクリーン５と撮像ビデオカメラ６からなる測
定系を設置し、車上に測定処理計算機８と記憶装置９と
測定結果出力装置１０と平行光線投光器用電源装置１１
を設置する。Embodiments of the present invention will be explained with reference to the drawings. 1st
In the figure, a parallel beam projector 2 and a solar ray blocking filter 4 are placed on a pantograph top plate 1 of a pantograph for measurement.
A measurement system consisting of a translucent screen 5 and an imaging video camera 6 is installed on the vehicle, and a measurement processing computer 8, a storage device 9, a measurement result output device 10, and a power supply device 11 for a parallel beam projector are installed on the vehicle.
Set up.
パンタグラフ上面板１に取りつけられた測定系の構成は
、測定対象の架線３を挟んで平行光線投光器２と半透明
な素材によって作られた小型の半透明スクリーン５を設
置し、平行光線投光器２から平行光線を測定対象の架線
３に投光し、測定対象の架線３によって光路が遮られる
ことにより、半透明スクリーン５の上に図４に示される
ような架線３の残存径に応じた影を生じさせる。なお、
このとき半透明スクリーン５の前に設置された太陽光線
遮断フィルタ４により太陽光線の影響を排除する。The measurement system attached to the pantograph top plate 1 has a parallel beam projector 2 and a small semi-transparent screen 5 made of a semi-transparent material placed across the overhead wire 3 to be measured. A parallel beam of light is projected onto the overhead wire 3 to be measured, and the optical path is blocked by the overhead wire 3 to be measured, thereby creating a shadow corresponding to the remaining diameter of the overhead wire 3 as shown in FIG. 4 on the semi-transparent screen 5. bring about In addition,
At this time, a sunlight blocking filter 4 installed in front of the semi-transparent screen 5 eliminates the influence of sunlight.
この半透明スクリーン５の後方に、半透明スクリーン５
に焦点を合わせた小型の撮像装置６を設置し、半透明ス
′クリーン５の上に生じた架線３の残存径に対応した影
の映像を撮像する。撮像された映像信号を、信号ケーブ
ルを通して車上の測定処理計算機８に入力する。Behind this semi-transparent screen 5, a semi-transparent screen 5
A small imaging device 6 is installed to capture an image of a shadow corresponding to the remaining diameter of the overhead wire 3 formed on the semi-transparent screen 5. The captured video signal is input to the on-vehicle measurement processing computer 8 through a signal cable.
車上の測定処理計算機８においては、撮像装置６から得
られた映像信号を計算処理し、雑音除去、適当な闇値に
よる２値化、影の大きさに応じた架線残存径の算定など
を行い、必要なデータを記（［装置９に記憶なするとと
もに、測定結果出力装置１．０にも出力する。The on-board measurement processing computer 8 calculates and processes the video signal obtained from the imaging device 6, removes noise, binarizes it using an appropriate darkness value, calculates the remaining diameter of the overhead wire according to the size of the shadow, etc. and record the necessary data ([store in the device 9 and also output to the measurement result output device 1.0).
記憶装置９においてこれらのデータを記憶しておき、検
査走行終了後、設備保守基地などにおいて、このデータ
をもとに架線の保守を行う。These data are stored in the storage device 9, and after the inspection run is completed, the overhead wire is maintained at an equipment maintenance base or the like based on this data.
さらに架線３は普通の区間では第１図の中で測定範囲と
して示された範囲以内で横方向に慴動するが、区間の始
終端ではこの範囲を越えて、平行光線投光器２と半透明
スクリーン５の有る部分まで来るので、これを防御する
ためにパンタグラフ両端部に保護ガイド７を設置する。Furthermore, in a normal section, the overhead wire 3 moves laterally within the range shown as the measurement range in Fig. 1, but at the beginning and end of the section, it moves laterally beyond this range, and the parallel beam projector 2 and the translucent screen 5, so in order to protect it from this, protective guides 7 are installed at both ends of the pantograph.
これにより架線３がここまで慴動してきたときにはこの
保護ガイド７により−でパンタグラフ全体が押し下げら
れ、平行光線投光器２と太陽光線遮断フィルタ４と半透
明スクリーン５と撮像装置６を保護する。As a result, when the overhead wire 3 has moved to this extent, the entire pantograph is pushed down by the protection guide 7, thereby protecting the parallel beam projector 2, the sunlight blocking filter 4, the translucent screen 5, and the imaging device 6.
また、パンタグラフ上の空間的制約が有る場合、第５図
に示すように、パンタグラフ上面には光学的プリズム１
６を設置し、光路を直角に曲げることにより、平行光線
投光器２と太陽光線遮断フィルタ４と半透明スクリーン
５と撮像装置６をパンタグラフの下部に設置する構成も
可能である。In addition, if there are spatial restrictions on the pantograph, an optical prism 1 may be placed on the top surface of the pantograph, as shown in Figure 5.
6 and bending the optical path at right angles, it is also possible to install the parallel beam projector 2, the sunlight blocking filter 4, the translucent screen 5, and the imaging device 6 at the bottom of the pantograph.
本発明の実施により横方向から見た架線の残存径が直接
測定されるため、架線摺動面の幅から間接的に残存径を
算定する従来方式での積度の非線形性や摺動面のぼりや
よごれによる誤差の発生を避ける事が可能となり、車体
に対する架線の縦横方向の移動にたいしても測定結果に
全くピリを受けない優れた架線検査システムの実現が可
能となる。また実施例に述べたように、最近発展の著し
い小型で安価な半導体レーザ光源を平行光線源として採
用し、受光側に太陽光線遮断のための赤外線通過フィル
ンを採用すれば、昼間においても太陽の影響を受けずに
検査を行うことが出来る。By implementing the present invention, the remaining diameter of the overhead wire viewed from the lateral direction is directly measured. This makes it possible to avoid errors caused by dirt and grime, and to realize an excellent overhead wire inspection system in which the measurement results are completely unaffected even when the overhead wire moves in the longitudinal and lateral directions relative to the vehicle body. Furthermore, as described in the example, if a compact and inexpensive semiconductor laser light source, which has recently been significantly developed, is used as a parallel light source, and an infrared ray-passing filter is used on the receiving side to block sunlight, it is possible to Tests can be performed without being affected.
このように装置全体がｆＪ素になったことで、検査シス
テム設置のコストが従来のシステムと比べて大幅に低減
され、装置が小型になったため一般車両に付設すること
が可能となるため、一般の営業列車による０常の架線検
査が可能となり、鉄道の安全性保障の上でも大きな効果
が期待される。Since the entire device is now an fJ element, the cost of installing the inspection system has been significantly reduced compared to conventional systems, and the device has become smaller, making it possible to install it on general vehicles. It will now be possible to conduct regular overhead wire inspections using commercial trains, and is expected to have a significant effect on ensuring railway safety.
第１図は車両の屋根の上に設置された本システムの全体
構成であり、第２図は新幹線で用いられている従来の技
術による架線検査システムの原理図、第３図は本発明に
おける平行光線投射による横方向からの架線残存径測定
の原理図、第４図は本発明における半透明スクリーン上
に投影された架線の影像の例、第５図はパンタグラフ上
面に空間余裕の無い場合にプリズムによって光路を曲げ
て、平行光線投光器と撮像ビデオカメラなどをバンクグ
ラフ上面板の下部に取る構成を示す図である。
１−・−パンタグラフ上面板、２−平行光線投光器３−
・・−・架線、 ４−−−−一太陽光線遮断フィルタ
。
５ ・・−・・半透明スクリーン、 ６−・−・撮像
装置。
７−・−・・・保護ガイド、 ７ ・・・・−測定処
理計３ｔ ａ 。
９・−・−記憶装置、１０−・−測定結果出力装置。
１１・−・平行光線投光器用電源装置。
１２−・・−レーザ光線発生器。
１３ ・−・・回転ミラー装置、１４ ・−・・ハーフ
ミラー■
５−・レーザ光線センサ。
６・・−・光学的プリズムFigure 1 shows the overall configuration of this system installed on the roof of a vehicle, Figure 2 is a principle diagram of a conventional overhead wire inspection system used in Shinkansen trains, and Figure 3 is a diagram of the overhead wire inspection system of the present invention. A diagram of the principle of measuring the remaining diameter of the overhead wire from the lateral direction by light beam projection. Figure 4 is an example of an image of the overhead wire projected on the semi-transparent screen according to the present invention. Figure 5 is a diagram showing the method of measuring the remaining diameter of the overhead wire from the lateral direction using a prism when there is no space on the top of the pantograph. FIG. 3 is a diagram showing a configuration in which a parallel light projector, an imaging video camera, and the like are placed below the bank graph top plate by bending the optical path. 1-・-Pantograph top plate, 2-Parallel light projector 3-
...Overhead line, 4---One sun ray blocking filter. 5...Semi-transparent screen, 6-...Imaging device. 7--Protection guide, 7--Measurement processing meter 3ta. 9.--Storage device, 10-.-Measurement result output device. 11.--Power supply device for parallel beam projector. 12-...-Laser beam generator. 13... Rotating mirror device, 14... Half mirror ■ 5-... Laser beam sensor. 6.--optical prism
Claims (1)
ラフのパンタグラフ上面板の両端に、測定対象の架線を
挟んで平行光線投光器と半透明受光スクリーンを設置し
、架線が左右に移動した場合に架線が平行光線投光器と
半透明スクリーンに接触しないように、パンタグラフ上
面板と滑らかに接続した保護ガイドを平行光線投光器と
半透明スクリーンの側面に付設し、平行光線投光器から
平行光線を架線に投光し、架線によって生じた影を半透
明スクリーン上に投影し、半透明スクリーン上の映像を
半透明スクリーンの裏側に設置された撮像装置により撮
影し、撮影された映像の映像信号を車内に設置した測定
処理計算機に送り計算処理することを特徴とする架線検
査装置。Parallel beam emitters and translucent light receiving screens are installed at both ends of the pantograph top plate of a current collecting pantograph installed on the roof of a running railway vehicle, sandwiching the overhead wire to be measured. To prevent the overhead wires from coming into contact with the parallel beam projector and the translucent screen, protective guides that are smoothly connected to the top plate of the pantograph are attached to the sides of the parallel beam projector and the translucent screen, and parallel beams of light are projected from the parallel beam projector onto the overhead wire. Then, the shadows created by the overhead wires were projected onto a semi-transparent screen, the image on the semi-transparent screen was photographed by an imaging device installed behind the semi-transparent screen, and the video signal of the photographed image was installed inside the train. An overhead wire inspection device characterized by sending data to a measurement processing computer for calculation processing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17496288A JPH0228029A (en) | 1988-07-15 | 1988-07-15 | Aerial wiring inspection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17496288A JPH0228029A (en) | 1988-07-15 | 1988-07-15 | Aerial wiring inspection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0228029A true JPH0228029A (en) | 1990-01-30 |
Family
ID=15987783
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17496288A Pending JPH0228029A (en) | 1988-07-15 | 1988-07-15 | Aerial wiring inspection device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0228029A (en) |
-
1988
- 1988-07-15 JP JP17496288A patent/JPH0228029A/en active Pending
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