JP3638724B2 - Overhead wire measuring device and crossover wire measuring method - Google Patents
Overhead wire measuring device and crossover wire measuring method Download PDFInfo
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- JP3638724B2 JP3638724B2 JP18682996A JP18682996A JP3638724B2 JP 3638724 B2 JP3638724 B2 JP 3638724B2 JP 18682996 A JP18682996 A JP 18682996A JP 18682996 A JP18682996 A JP 18682996A JP 3638724 B2 JP3638724 B2 JP 3638724B2
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Description
【0001】
【発明の属する技術分野】
本発明は電車線の高さ及び偏位を非接触で測定する可搬型の架線測定装置と、渡り線箇所での本装置の使用方法に関するものである。
【0002】
【発明が解決しようとする課題】
トロリ線の高さと偏位を適正に維持しておくことは電気鉄道の正常な走行に欠かせないことである。従来は両者の測定に立上がり式測定器を用い、トロリ線に接触させる原始的な方法をとっていた。これの改善策としてレーザ光線を使用した非接触型のものが実開平5−45510で開示されている。垂直と傾斜の2本のレーザ光線を用い、垂直レーザ光線の水平移動で偏位を、また傾斜レーザ光線の傾斜角から高さを計るようにしたものである。しかしこの方法では横移動量の誤差がごく僅かであってもこれに対する高さ誤差が大きくなり、実用性に問題がある。
高さと偏位の測定が特に重要とされるのは渡り線部分である。本線から側線へ、逆に側線から本線へ移行する場合、高さと偏位が適正範囲に収まっていない場合、パンタグラフがトロリ線上へ割込む事故を発生する。非接触で確実な測定が可能であり、割込み事故防止に貢献できる装置の出現が待望されている。
【0003】
【課題を解決するための手段】
両レールに渡しかけた短冊状基板へ、その中心から左右対称位置に基軸を設ける。各基軸には受光筒を固着しておく。附設のステップモータによりこの両軸は受光筒が垂直位置を中心に適当角度傾斜可能とし、その傾斜角を読取り可能としておく。受光筒は、自然光によるときは上部電車線の像影をとらえ、そのときの電車線位置における受光筒の角度を知れば電車線の高さ、偏位を算出可能である。また光源によるときは両軸に投光筒と受光筒とを並列に固着し、受光筒で反射光をとらえ、そのときの受光筒の角度を知れば自然光同様に電車線の高さ、偏位を算出可能である。投光筒にはレーザ光線をはじめ、ハロゲンランプ、発光ダイオード等の光源装置を内蔵させておく。次に述べる如く、例えばトロリ線の高さHと偏位dを算出することができる。
図1は基軸S1,S2(この間隔はA)から回動させた受光筒がトロリ線T(高さH)をとらえたときの三角形であり、3辺をA,B,C、三つの角度θ1,θ2,θ3で示す。
【数1】
上式でAは一定であり、θ3は180度からθ1+θ2を引いたものである。従ってθ1とθ2を測ればHがわかる。
またS1S2線中心垂線をPPとすると同図に於いて
【数2】
となる。従ってθ1,θ2の測定でdも同時にわかる。点TがPP線の上或いはその左側にある場合は、dが零になるか、負の数値になるかの違いだけである。従って附設のコンピューターにθ1,θ2を入力することによって即時Hとdを算出可能であり、画像を目視することも出来る。
【0004】
次に渡り線の測定を図2について述べる。ここでは両軸に投光筒と受光筒とを並列に設けた場合の実施例にもとづいて説明する。本線T1から側線T2を分岐させた場合、本線上で分岐点がわずかに通りすぎた位置にこの装置を定置し、まず前記の如く両投光筒を対向傾斜させてトロリ線T1についての角θ1,θ2を測定する。次に両投光筒を共に側線側へ傾斜させるとトロリ線T2に光軸が合って、同様にこの場合のθ1,θ2を測る。これにより本線T1,側線T2の高さと偏位を算出可能であり、高さに関しては図2の如く同一画像上で両線の高さと、高さ差hを見ることができる。ここで使用する光学系機器は、望遠レンズ系で構成しているので、測定対象までの距離が5m位であれば特に焦点を合わせる必要はない。
連続性のある本線を基準に、側線の始端部を測定するのであるから、渡り線としての適否を端的に判定することが出来る。
【0005】
【発明の実施の形態】
図3,図4について実施例を述べる。基板1は両レールR上へ渡しかけた短冊状枠体で、下部にタテ横1対のローラ1a,1bを備え、これによってレール上へ緊密に位置決めされ、レールに沿い移動可能である。基板1は中央から対称位置に1対の基軸2を軸支する。各基軸には受光筒4を固着してある。基軸には別にステッピングモータMが設けてあって、受光筒4の光軸傾斜角度を検知可能としてある。受光筒の光センサは、センサ電圧の変化によって自然光のときの上部トロリ線の像影をとらえ、そのときの受光筒の角度を認識して電車線の位置、角度を検出する。
以上は測定環境が自然光の場合であるが、測定が終電車通過後の夜間作業になることが多いので、両軸に投光筒3を受光筒4と並列に固着し、これにレーザ光線をはじめ、ハロゲンランプ、発光ダイオード、白熱ランプ等の光源装置を内設する。図5は投光筒3と受光筒4とを併設したときの実施例を示す斜視図である。
投光筒の光源はトロリ線を照射し、受光筒でその反射光をとらえ、そのときの角度を検出する。
図2は本線T1から側線T2を分岐させた、いわゆる渡り線の測定を示すものであるが、両投光筒を対向傾斜させてトロリ線T1及び側線T2に光源を照射し、夫々に光軸が合ったときの角度θ1,θ2を測定する。これにより両線の高さと偏位が付設コンピュータ(図示せず)により算出可能である。また両線の高さと夫々の高さの差hは同一画像上で確認できる。
図6はセンサ電圧測定図の一例である。上の線Aは一方の側の受光筒、下の線Bは他側受光筒によるもので、下向き突起は、夫々トロリ線を検知したときのものである。両突起の位置のズレは偏位の存在によるものであり、きざし波状起伏は風による揺れを示す。
両突起を生じたときの受光筒の傾斜角度値は直ちに付設のコンピュータに投入され、高さと偏位を即座に読取可能とする。装置をレールに沿うて移動させながら変化を連続的に読取ることも可能である。
【0006】
【発明の効果】
トロリ線に触れることもなく高さと偏位を無理なく即座に知ることができる。渡り線についても本線上の同一位置で、本線側線両者の測定を行うことによって両者を対比可能とし、割り込み事故防止に貢献する。
【図面の簡単な説明】
【図1】本装置の原理説明図である。
【図2】渡り線測定の原理説明図である。
【図3】本装置の正面図である。
【図4】同平面図である。
【図5】投光筒と受光筒とを併設した斜視図である。
【図6】光センサ電圧の変化記録図である。
【符号の説明】
1 基板
2 基軸
3 投光筒
4 受光筒
M ステップモータ[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a portable overhead wire measurement device that measures the height and displacement of a train line in a non-contact manner, and a method of using the device at a crossover location.
[0002]
[Problems to be solved by the invention]
Proper maintenance of the height and displacement of the trolley line is essential for the normal operation of electric railways. Conventionally, a rise-up type measuring instrument was used for both measurements, and a primitive method of contacting the trolley wire was used. As a countermeasure for this, a non-contact type using a laser beam is disclosed in Japanese Utility Model Laid-Open No. 5-45510. Two laser beams, vertical and inclined, are used, the displacement is measured by horizontal movement of the vertical laser beam, and the height is measured from the inclination angle of the inclined laser beam. However, in this method, even if the error of the lateral movement is very small, the height error corresponding to this is large, and there is a problem in practicality.
It is the crossover section where height and excursion measurements are particularly important. When moving from the main line to the side line, and conversely from the side line to the main line, if the height and excursion are not within the proper range, an accident will occur where the pantograph breaks into the trolley line. There is a long-awaited appearance of a device that can perform non-contact and reliable measurement and contribute to prevention of interruption accidents.
[0003]
[Means for Solving the Problems]
A base axis is provided at a symmetrical position from the center of the strip-shaped substrate passed to both rails. A light receiving tube is fixed to each base shaft. The attached step motor enables the light receiving tube to tilt at an appropriate angle around the vertical position, so that the tilt angle can be read. The light receiving tube captures an image of the upper train line when it is caused by natural light, and the height and deviation of the train line can be calculated by knowing the angle of the light receiving tube at the train line position at that time. In addition, when using a light source, a light projecting tube and a light receiving tube are fixed in parallel on both axes, the reflected light is captured by the light receiving tube, and if the angle of the light receiving tube at that time is known, the height and displacement of the train line as in natural light Can be calculated. A light source device such as a laser beam, a halogen lamp, or a light emitting diode is built in the projection tube. As will be described below, for example, the height H and the displacement d of the trolley wire can be calculated.
FIG. 1 shows a triangle when the light receiving tube rotated from the base axes S1 and S2 (this interval is A) captures the trolley line T (height H), and three sides are A, B, C, and three angles. Indicated by θ1, θ2, and θ3.
[Expression 1]
In the above equation, A is constant, and θ3 is 180 degrees minus θ1 + θ2. Therefore, H can be found by measuring θ1 and θ2.
In addition, if the central perpendicular of the S1S2 line is PP,
It becomes. Therefore, d can be determined simultaneously by measuring θ1 and θ2. If the point T is above or to the left of the PP line, the only difference is whether d is zero or negative. Therefore, by inputting θ1 and θ2 into the attached computer, H and d can be calculated immediately, and the image can be visually observed.
[0004]
Next, the crossover measurement will be described with reference to FIG. Here, a description will be given based on an embodiment in which a light projecting tube and a light receiving tube are provided in parallel on both axes. When the side line T2 is branched from the main line T1, the apparatus is placed at a position where the branch point slightly passes on the main line, and first, as described above, the two projection tubes are inclined to face each other, and the angle θ1 about the trolley line T1 is set. , Θ2 are measured. Next, when both the light projecting tubes are inclined to the side line side, the optical axis is aligned with the trolley line T2, and θ1 and θ2 in this case are similarly measured. Thus, the height and displacement of the main line T1 and the side line T2 can be calculated, and regarding the height, the height of both lines and the height difference h can be seen on the same image as shown in FIG. Since the optical system apparatus used here is composed of a telephoto lens system, it is not necessary to focus in particular if the distance to the measurement object is about 5 m.
Since the starting end portion of the side line is measured on the basis of the continuous main line, the suitability as a crossover can be determined simply.
[0005]
DETAILED DESCRIPTION OF THE INVENTION
An embodiment will be described with reference to FIGS. The
The above is the case where the measurement environment is natural light. However, since the measurement is often performed at night after passing the last train, the light projecting cylinder 3 is fixed in parallel with the light receiving
The light source of the light projecting tube emits a trolley line, the reflected light is captured by the light receiving tube, and the angle at that time is detected.
FIG. 2 shows a so-called crossover measurement in which the side line T2 is branched from the main line T1, and both light projecting tubes are inclined to face each other to illuminate the trolley line T1 and the side line T2 with light sources, respectively. Measure the angles θ1 and θ2 when. Thereby, the height and deviation of both lines can be calculated by an attached computer (not shown). Further, the difference h between the heights of the two lines and the respective heights can be confirmed on the same image.
FIG. 6 is an example of a sensor voltage measurement diagram. The upper line A is from the light receiving cylinder on one side, the lower line B is from the other light receiving cylinder, and the downward projections are when the trolley line is detected. The deviation between the positions of the two protrusions is due to the presence of the deviation, and the wavy undulations indicate the shaking by the wind.
The inclination angle value of the light receiving cylinder when both protrusions are generated is immediately input to an attached computer so that the height and deviation can be read immediately. It is also possible to read changes continuously while moving the device along the rail.
[0006]
【The invention's effect】
Without touching the trolley line, you can immediately know the height and deviation without difficulty. The crossover line can be compared at the same position on the main line by measuring both of the main line and contributes to the prevention of interruption accidents.
[Brief description of the drawings]
FIG. 1 is a diagram illustrating the principle of this apparatus.
FIG. 2 is a diagram illustrating the principle of crossover measurement.
FIG. 3 is a front view of the apparatus.
FIG. 4 is a plan view of the same.
FIG. 5 is a perspective view in which a light projecting tube and a light receiving tube are provided side by side.
FIG. 6 is a change recording diagram of an optical sensor voltage.
[Explanation of symbols]
1
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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JP18682996A JP3638724B2 (en) | 1996-06-27 | 1996-06-27 | Overhead wire measuring device and crossover wire measuring method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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JP18682996A JP3638724B2 (en) | 1996-06-27 | 1996-06-27 | Overhead wire measuring device and crossover wire measuring method |
Publications (2)
Publication Number | Publication Date |
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JPH1016608A JPH1016608A (en) | 1998-01-20 |
JP3638724B2 true JP3638724B2 (en) | 2005-04-13 |
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JP18682996A Expired - Fee Related JP3638724B2 (en) | 1996-06-27 | 1996-06-27 | Overhead wire measuring device and crossover wire measuring method |
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Cited By (2)
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KR101325990B1 (en) * | 2013-04-05 | 2013-11-07 | 이인옥 | An measure equipment of latitude for trolley line |
FR3082792A1 (en) * | 2018-06-22 | 2019-12-27 | 4Nrj | MEASURING DEVICE FOR THE CATENARIES OF A SWITCH |
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KR100652838B1 (en) | 2005-04-26 | 2006-12-01 | 박종국 | Contact wire measurement system in electric railway |
JP5549488B2 (en) * | 2010-09-02 | 2014-07-16 | 株式会社明電舎 | Trolley wire inspection device |
WO2013133779A2 (en) * | 2012-03-07 | 2013-09-12 | Robat Kontrol Otomasyon Ar Ge Ve Yazilim | Catenary measurement robot and method |
KR101527068B1 (en) * | 2013-12-26 | 2015-06-09 | 주식회사 포스코 | Distance measuring apparatus for furnace surface steel |
JP6389783B2 (en) * | 2015-03-11 | 2018-09-12 | 公益財団法人鉄道総合技術研究所 | Crossover relative position management apparatus and method |
KR102669112B1 (en) * | 2024-02-16 | 2024-05-23 | 이상철 | Automated device for measuring deflection of tram lines and method for providing deflection measurement values using the same |
-
1996
- 1996-06-27 JP JP18682996A patent/JP3638724B2/en not_active Expired - Fee Related
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101325990B1 (en) * | 2013-04-05 | 2013-11-07 | 이인옥 | An measure equipment of latitude for trolley line |
FR3082792A1 (en) * | 2018-06-22 | 2019-12-27 | 4Nrj | MEASURING DEVICE FOR THE CATENARIES OF A SWITCH |
Also Published As
Publication number | Publication date |
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JPH1016608A (en) | 1998-01-20 |
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