JP3504359B2 - Trolley wire height and deflection measuring device - Google Patents
Trolley wire height and deflection measuring deviceInfo
- Publication number
- JP3504359B2 JP3504359B2 JP33653794A JP33653794A JP3504359B2 JP 3504359 B2 JP3504359 B2 JP 3504359B2 JP 33653794 A JP33653794 A JP 33653794A JP 33653794 A JP33653794 A JP 33653794A JP 3504359 B2 JP3504359 B2 JP 3504359B2
- Authority
- JP
- Japan
- Prior art keywords
- trolley wire
- height
- itv camera
- line
- personal computer
- 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.)
- Expired - Fee Related
Links
Landscapes
- Length Measuring Devices By Optical Means (AREA)
- Image Processing (AREA)
Description
【０００１】[0001]
【産業上の利用分野】この発明は、トロリ線の高さと偏
位の測定装置に関し、とくに架線保守車に搭載する簡易
な測定装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a trolley wire height and deviation measuring device, and more particularly to a simple measuring device to be mounted on an overhead line maintenance vehicle.
【０００２】[0002]
【従来の技術】図７は、電車線路における、架空トロリ
線（Ｔとする）１の架設構造を示す平面および側面図で
ある。線路の側傍には支持電柱２が所定のスパンで植設
され、各支持電柱２に対して、トロリ線Ｔと吊架線22と
がブラケット21により支持されて架設され、トロリ線Ｔ
は、適当な間隔のハンガー23により吊架線22に吊架され
て水平に展張される。電車３は、パンタグラフ31がトロ
リ線Ｔの下面に摺動接触し、これより受電して走行す
る。トロリ線Ｔは、パンタグラフ31との接触を安定にす
るために地上高Ｈが一定の範囲内に架設され、また、パ
ンタグラフ31の摩耗が一箇所に集中しないように、各支
持電柱２ごとに左右方向に交互に牽引し、いわばジグザ
グに一定の範囲内に左右に偏位されている。Ｄは偏位を
示す。図８は、トロリ線Ｔの地上高Ｈと偏位Ｄのそれぞ
れの、最大の変動範囲ｈm とＤm を示し、これらの具体
的な数値としては、例えばＨが４．６〜５．４ｍの場
合、ｈm は８００ｍｍ、Ｄm は７００ｍｍとされてい
る。なお便宜上、図示のＡを、ｈm とＤm の２次元の最
大変動範囲とする。2. Description of the Related Art FIGS. 7A and 7B are a plan view and a side view showing an erection structure of an overhead trolley wire (referred to as T) 1 in a train track. Supporting electric poles 2 are planted with a predetermined span on the side of the line, and a trolley wire T and a suspension overhead wire 22 are erected and supported on each supporting electric pole 2 by a bracket 21.
Is suspended on the suspension wire 22 by the hangers 23 at appropriate intervals and horizontally extended. In the train 3, the pantograph 31 is in sliding contact with the lower surface of the trolley wire T, and receives electric power from this to run. The trolley wire T is erected within a certain range of the ground height H in order to stabilize the contact with the pantograph 31, and in order to prevent the wear of the pantograph 31 from concentrating on one place, the trolley wire T is left and right for each supporting pole 2. It is towed in alternating directions, and is, as it were, zigzag deviated left and right within a certain range. D indicates deviation. FIG. 8 shows the maximum fluctuation ranges hm and Dm of the ground height H and the excursion D of the trolley line T, respectively. As specific numerical values thereof, for example, when H is 4.6 to 5.4 m. , Hm is 800 mm and Dm is 700 mm. For the sake of convenience, A in the figure is the maximum two-dimensional fluctuation range of hm and Dm.
【０００３】トロリ線Ｔは、もしなんらかの原因により
変動範囲Ａの外に逸脱すると、パンタグラフ31との接触
が確保されず、電車運転に支障するので、最大変化範囲
Ａ内に維持することが是非とも必要であり、また、たと
え範囲内であっても、前後に比較して異常な位置にあれ
ば、ブラケット21の支持などに問題ありとされる。これ
に対して、各線区に配備されている架線保守車に検査員
が搭乗して、手作業によりＨとＤを測定し、これらが最
大変動範囲Ａ内にあるか否か、または位置の異常の有無
が検査されている。また、電気検測車が配備され、定期
的に走行して、これらの連続的な測定検査も行われてい
る。If the trolley wire T deviates from the fluctuation range A for some reason, contact with the pantograph 31 will not be ensured and it will interfere with train operation. Therefore, it is absolutely necessary to maintain it within the maximum change range A. It is necessary, and even if it is within the range, if it is in an abnormal position compared to the front and rear, it is considered that there is a problem in supporting the bracket 21 or the like. On the other hand, an inspector rides on an overhead line maintenance vehicle deployed in each line section and manually measures H and D, and whether or not these are within the maximum fluctuation range A, or the position is abnormal. Is checked for. In addition, an electric inspection car is installed and runs regularly to perform continuous measurement and inspection of these.
【０００４】[0004]
【発明が解決しようとする課題】さて、上記の電気検測
車は営業列車並の高速度で走行して、高さＨや偏位Ｄと
ともにトロリ線Ｔの摩耗量をも測定する規模の大きいも
ので、検査周期は、短くて１〜２月、長いときは１年程
度であって、随時の検査は期待できない。一方、架線保
守車による手作業検査は、かなりの人手と時間を要する
ばかりでなく、測定が部分的であるなどの欠点がある。
これに対して、架線保守車に搭載して随時に使用し、Ｈ
とＤを連続して測定できる簡易な測定装置が要請されて
いる。ただし、架線保守車は列車間合いの長い夜間に使
用され、時速１０〜２０ｋｍの低速度で走行し、随意に
停止して作業を行うものであるが、これらは測定装置に
とって別段支障する条件ではなく、むしろ夜間使用は天
空の自然光の影響を受けず、また低速度はデータ処理が
容易であるなど有利である。この発明は、上記の要請に
対応してなされたもので、架線保守車に搭載して、夜間
走行中に、トロリ線Ｔの高さＨと偏位Ｄとを、良好な精
度で連続して測定できる簡易な測定装置を提供すること
を目的とする。By the way, the electric inspection vehicle described above runs at a high speed comparable to that of a commercial train, and has a large scale for measuring not only the height H and the deviation D but also the wear amount of the trolley wire T. However, the inspection cycle is as short as 1 to 2 months, and long as it is about 1 year. On the other hand, the manual work inspection by the overhead line maintenance vehicle not only requires a considerable amount of manpower and time, but also has a drawback that the measurement is partial.
On the other hand, H
There is a demand for a simple measuring device capable of continuously measuring D and D. However, an overhead line maintenance vehicle is used during long nights between trains, runs at a low speed of 10 to 20 km / h, and stops at any time to perform work, but these are not conditions that hinder the measuring device. Rather, nighttime use is not affected by the natural light of the sky, and low speed is advantageous because data processing is easy. The present invention has been made in response to the above-mentioned demand, and is mounted on an overhead line maintenance vehicle to continuously maintain the height H and the deviation D of the trolley wire T with good accuracy during nighttime traveling. It is an object to provide a simple measuring device that can measure.
【０００５】[0005]
【課題を解決するための手段】この発明は、トロリ線の
高さ・偏位測定装置であって、架線保守車に搭載されて
夜間使用を条件とし、トロリ線に対して直角方向の線光
束を鉛直上方に投射する線光源と、トロリ線の長手方向
に対して撮影方向が斜め上向きに設定され、高さと偏位
の最大変動範囲内のトロリ線を撮像するＩＴＶカメラよ
りなる測定光学系、およびＩＴＶカメラの画像信号を処
理するパーソナルコンピユータよりなる。保守車の夜間
走行中に、線光束が投射されたトロリ線をＩＴＶカメラ
により連続して撮像し、ＩＴＶカメラが逐次に出力する
画像信号をパーソナルコンピユータにより処理して、ト
ロリ線の高さと偏位をそれぞれ算出し、算出された各デ
ータをチャート紙に連続して記録する。上記において、
パーソナルコンピユータは、ＩＴＶカメラの画像信号の
ピーク値を求めて、ピーク値により上記トロリ線の高さ
と偏位をそれぞれ算出するとともに、線光源よりの線光
束が、トロリ線を支持するブラケットに投射されてＩＴ
Ｖカメラにより撮像されたときは、ＩＴＶカメラの受光
素子の連続した個数をパーソナルコンピユータによりチ
ェックし、個数が一定数より多いとき、ブラケットと判
定してトロリ線の高さと偏位についての算出対象から除
去するものである。SUMMARY OF THE INVENTION The present invention is a trolley wire height / deviation measuring device, which is mounted on an overhead line maintenance vehicle and is used at night. And a measuring optical system including a line light source that projects vertically upwards, and an ITV camera that captures a trolley wire within a maximum fluctuation range of height and displacement, with an imaging direction set obliquely upward with respect to the longitudinal direction of the trolley wire, And a personal computer for processing the image signal of the ITV camera. While the maintenance vehicle is running at night, the ITV camera continuously takes images of the trolley line on which the line luminous flux is projected, and the personal computer processes the image signals sequentially output by the ITV camera to adjust the height and deviation of the trolley line. Is calculated and each calculated data is continuously recorded on the chart paper. In the above,
Personal-computer is seeking the peak value of the image signal of the ITV camera, and calculates each height and deflection of the contact wire by the peak value, the linear light beam from the linear light source is projected to a bracket for supporting the trolley wire IT
When the image is taken by the V camera, the number of continuous light receiving elements of the ITV camera is checked by the personal computer, and when the number is more than a certain number, it is determined as a bracket, and the height and the deviation of the trolley wire are calculated. To remove.
【０００６】[0006]
【作用】上記の高さ・偏位測定装置の測定光学系は、線
光源とＩＴＶカメラとにより簡易に構成され、パーソナ
ルコンピユータも小型軽量であるので、架線保守車に容
易に搭載される。架線保守車の夜間走行中に、線光源よ
りの線光束が投射されたトロリ線は、その反射光がＩＴ
Ｖカメラにより連続して撮像され、これが逐次に出力す
る画像信号はパーソナルコンピユータの処理により、ト
ロリ線の高さと偏位とが算出されて、それぞれのデータ
がチャート紙に連続して記録される。パーソナルコンピ
ユータにおいては、ＩＴＶカメラの画像信号のピーク値
が求められ、このピーク値によりトロリ線の高さと偏位
がそれぞれ算出される。このようにピーク値により高さ
と偏位を算出することにより、良好な測定精度がえられ
る。また、ブラケットに線光束が投射されてＩＴＶカメ
ラにより撮像されたときは、ＩＴＶカメラの受光素子の
連続した個数がパーソナルコンピユータによりチェック
されて、個数が一定数より多いときはブラケットと判定
して除去されるので、ブラケットはトロリ線の測定には
影響しない。以上により、架線保守車は随時に夜間走行
して、トロリ線の高さと偏位とが良好な精度で測定さ
れ、チャート紙に連続して記録されるので、これを検査
員がチェックして不良箇所を見付けたときは、直ちに対
応措置をとることができる。The measuring optical system of the above height / deflection measuring device is simply constituted by the line light source and the ITV camera, and the personal computer is also small and lightweight, so that it can be easily mounted on an overhead line maintenance vehicle. While the overhead line maintenance vehicle is running at night, the reflected light from the trolley wire projected by the linear light flux from the linear light source is IT.
The image signals successively picked up by the V camera and sequentially output are processed by the personal computer to calculate the height and displacement of the trolley wire, and the respective data are continuously recorded on the chart paper. In the personal computer, the peak value of the image signal of the ITV camera is obtained, and the height and deviation of the trolley wire are calculated based on this peak value. By calculating the height and the deviation from the peak value in this way, good measurement accuracy can be obtained. When the ITV camera captures an image with a linear light flux projected onto the bracket, the personal computer checks the number of consecutive ITV camera light-receiving elements. As such, the bracket does not affect the trolley wire measurement. Due to the above, the overhead line maintenance vehicle runs at night from time to time, and the height and deviation of the trolley wire are measured with good accuracy and are continuously recorded on the chart paper. If you find a location, you can take immediate action.
【０００７】[0007]
【実施例】図１〜図６は、この発明の一実施例を示し、
図１は架線保守車（軌道保守車でも差し支えない）に搭
載された測定装置の概略の構成図、図２は線光束が投射
されたトロリ線Ｔの説明図、図３はＩＴＶカメラの構成
と撮影範囲および受光角度の説明図、図４はＩＴＶカメ
ラの画像の説明図、図５は画像信号の処理方法の説明
図、図６はブラケットの映像の除去方法の説明図であ
る。1 to 6 show an embodiment of the present invention,
FIG. 1 is a schematic configuration diagram of a measuring device mounted on an overhead line maintenance vehicle (orbit maintenance vehicle may be used), FIG. 2 is an explanatory diagram of a trolley line T on which a line light beam is projected, and FIG. 3 is a configuration of an ITV camera. FIG. 4 is an explanatory diagram of a shooting range and a light receiving angle, FIG. 4 is an explanatory diagram of an image of an ITV camera, FIG. 5 is an explanatory diagram of an image signal processing method, and FIG. 6 is an explanatory diagram of a bracket image removing method.
【０００８】図１において、測定装置は、架線保守車
（以下保守車）４の屋根41（屋根無しのときは、適当な
載置台）に固定された、線光源51とＩＴＶカメラ52より
なる測定光学系５と、適当な場所に配置された、チャー
ト記録機能を有するパーソナルコンピユータ６とにより
構成される。ＩＴＶカメラ52は地上高をＨ’とし、接続
ケーブル61によりパーソナルコンピユータ６に接続す
る。なお、保守車４の走行方向（トロリ線Ｔの長手方
向）をＸ、これに直角方向をＹ、鉛直方向をＺとする。
線光源51は、Ｙ方向の線光束ＬT をＺ方向の上方に投射
する。ＩＴＶカメラ52は、撮影方向をＸ方向のトロリ線
Ｔに対して斜め上向きに設定し、前記の最大変動範囲Ａ
を撮影範囲として、この範囲内のトロリ線Ｔを撮像す
る。In FIG. 1, the measuring device comprises a line light source 51 and an ITV camera 52 fixed to a roof 41 of an overhead line maintenance vehicle (hereinafter referred to as maintenance vehicle) 4 (an appropriate mounting table when there is no roof). It is composed of an optical system 5 and a personal computer 6 having a chart recording function, which is arranged at an appropriate place. The ITV camera 52 has a ground clearance of H ′ and is connected to the personal computer 6 by a connection cable 61. The traveling direction of the maintenance vehicle 4 (longitudinal direction of the trolley wire T) is X, the direction orthogonal thereto is Y, and the vertical direction is Z.
The linear light source 51 projects the linear luminous flux LT in the Y direction upward in the Z direction. The ITV camera 52 sets the photographing direction obliquely upward with respect to the trolley line T in the X direction, and the maximum fluctuation range A described above is set.
Is set as an imaging range, and the trolley wire T within this range is imaged.
【０００９】図２(a) において、線光源51より鉛直上方
に投射された線光束ＬT はトロリ線Ｔにより反射され
る。(b) は反射部分の拡大図で、断面が図示の形状のト
ロリ線Ｔは、その底面（摺面）Ｓと両側面とが反射光Ｌ
R を反射する。ただし摺面Ｓは、パンタグラフ31との摺
動接触により摩耗して反射率が良好であり、両側面は黒
色であるため、摺面Ｓの方がより強く反射し、これらの
反射光ＬR はともにＩＴＶカメラ52に入射する。In FIG. 2A, the line luminous flux LT projected vertically upward from the line light source 51 is reflected by the trolley line T. (b) is an enlarged view of the reflection portion, and the trolley wire T having the cross-section shown in the figure has its bottom surface (sliding surface) S and both side surfaces reflected light L.
Reflects R. However, the sliding surface S is worn by sliding contact with the pantograph 31 and has a good reflectance, and since both side surfaces are black, the sliding surface S is more strongly reflected, and both of these reflected lights LR are reflected. It is incident on the ITV camera 52.
【００１０】図３(a),(b) は、ＩＴＶカメラ52のＸＺ面
とＹＺ面における撮影範囲を示す。ＩＴＶカメラ52は、
対物レンズ521 とＣＣＤイメージセンサ（以下単にＣＣ
Ｄセンサ）522 とを有し、その光軸Ｃは、最大変動範囲
Ａの中心に対して、(a) に示す受光角度θR をなして設
定される。受光角度θR は、大きいほど反射光ＬR を多
く受光できるが、高さＨ’の検出精度が低下する。これ
と反対に小さくすると、受光量が少なくなり、検出精度
が高くなるので、適当な角度θR として、例えば４５°
に設定する。なお、ＣＣＤセンサ521 のＸＺ’面におけ
る方向をＺ’とする。(a) のＸＺ面では、トロリ線Ｔの
高さ変動範囲ｈm がＣＣＤセンサ522 のＺ’方向の各受
光素子ｅに、(b) のＹＺ面では、偏位の変動範囲Ｄm が
Ｙ方向の各受光素子ｅにそれぞれ対応する。変動範囲Ａ
内のトロリ線Ｔの反射光ＬR は、対物レンズ521 によ
り、図４のように、ＣＣＤセンサ522 の対応する受光素
子ｅに結像される。ただし、図のＴ’は結像されたトロ
リ線Ｔの映像を示す。FIGS. 3 (a) and 3 (b) show the photographing range of the ITV camera 52 on the XZ plane and the YZ plane. ITV camera 52
Objective lens 521 and CCD image sensor (hereinafter simply CC
D sensor) 522, and its optical axis C is set with respect to the center of the maximum fluctuation range A at a light receiving angle θR shown in (a). The larger the light receiving angle .theta.R, the more the reflected light LR can be received, but the detection accuracy of the height H'decreases. On the contrary, if it is made smaller, the amount of received light becomes smaller and the detection accuracy becomes higher. Therefore, as an appropriate angle θR, for example, 45 °
Set to. The direction on the XZ 'plane of the CCD sensor 521 is Z'. On the XZ plane of (a), the height variation range hm of the trolley wire T is on each light receiving element e in the Z ′ direction of the CCD sensor 522, and on the YZ plane of (b), the variation range Dm of the deviation is in the Y direction. It corresponds to each light receiving element e. Variation range A
The reflected light LR of the inner trolley line T is imaged by the objective lens 521 on the corresponding light receiving element e of the CCD sensor 522 as shown in FIG. However, T'in the figure shows the image of the formed trolley line T.
【００１１】以下、図４〜図６により、画像処理部６に
おける画像処理方法を説明する。保守車４が夜間走行し
て線光源51より線光束ＬT が投射されると、最大変動範
囲Ａ内のトロリ線ＴはＩＴＶカメラ52により連続して撮
像され、その画像信号はパーソナルコンピユータ６に入
力して処理され、映像Ｔ’を受光したＣＣＤセンサ521
の受光素子ｅのＹＺ’座標値（ｙe,ｚ’e ）が逐次に算
出される。この場合、映像Ｔ’には、図２(b) で説明し
たように、トロリ線Ｔの摺面Ｓの強い反射光ＬR ととも
に、両側面の弱い反射光ＬR がＹ方向に撮像され、また
摺面Ｓの反射光ＬR はＸ方向の幅が広いため、映像Ｔ’
はＺ’方向に広がっているので、映像Ｔ’は、図５に示
すように、多数の受光素子ｅに受光される。これに対し
て、各受光素子ｅの出力信号をパーソナルコンピユータ
６により処理して、図示のヒストグラムを作成し、その
ピーク値を検出する閾値ＶS を定め、これにより検出さ
れたピーク値を有する受光素子ｅの座標値（ｙe,ｚ’e
）を算出すると、高さＨ’と偏位Ｄとが良好な精度で
求められる。えられた高さＨ’は地上高Ｈに換算され
る。次に、図６(a) において、支持電柱２ごとにトロリ
線Ｔを支持しているブラケット（Ｂで示す）21は、トロ
リ線Ｔに直角なＹ方向をなしているので、保守車４が走
行すると、これらには線光束ＬT が順次に投射され、そ
の反射光ＬR ’がＩＴＶカメラ52により撮像される。
(b) はブラケットＢの映像Ｂ’を示し、映像Ｂ’は、ト
ロリ線Ｔの映像Ｔ’に隣接してＹ方向にあり、映像Ｔ’
の座標値の算出に支障する。ただし、ブラケットＢの長
さは長いので、これを受光した受光素子ｅの個数をパー
ソナルコンピユータ６によりカウントし、カウント数が
一定数より多いときは、これをブラケットＢと判定して
映像Ｂ’を除去する。以上によりえられた各測定データ
はチャート紙に連続して記録され、検査員により地上高
Ｈと偏位Ｄが適切妥当であるか否かがチェックされ、不
良箇所に対して直ちに対応措置をとることができる。An image processing method in the image processing unit 6 will be described below with reference to FIGS. When the maintenance vehicle 4 travels at night and the line luminous flux LT is projected from the line light source 51, the trolley line T within the maximum fluctuation range A is continuously imaged by the ITV camera 52, and the image signal is input to the personal computer 6. CCD sensor 521 that received the image T ′
The YZ 'coordinate values (ye, z'e) of the light receiving element e are sequentially calculated. In this case, in the image T ′, as described with reference to FIG. 2B, the strong reflected light LR of the sliding surface S of the trolley wire T and the weak reflected light LR of both side surfaces are imaged in the Y direction, and are also slid. Since the reflected light LR of the surface S has a wide width in the X direction, the image T '
Spreads in the Z'direction, the image T'is received by a large number of light receiving elements e as shown in FIG. On the other hand, the output signal of each light receiving element e is processed by the personal computer 6 to create the illustrated histogram, the threshold VS for detecting the peak value thereof is determined, and the light receiving element having the detected peak value is obtained. coordinate value of e (ye, z'e
), The height H ′ and the deviation D can be obtained with good accuracy. The obtained height H'is converted to the ground height H. Next, in FIG. 6 (a), the bracket (indicated by B) 21 supporting the trolley wire T for each supporting electric pole 2 is in the Y direction perpendicular to the trolley wire T, so that the maintenance vehicle 4 is As the vehicle travels, the linear luminous flux LT is sequentially projected onto these, and the reflected light LR 'is imaged by the ITV camera 52.
(b) shows an image B ′ of the bracket B, and the image B ′ is adjacent to the image T ′ of the trolley wire T in the Y direction, and the image T ′ is
It hinders the calculation of the coordinate values of. However, since the length of the bracket B is long, the number of the light receiving elements e that received the light is counted by the personal computer 6, and when the counted number is more than a certain number, it is determined as the bracket B and the image B ′ is displayed. Remove. Each measurement data obtained as described above is continuously recorded on the chart paper, and the inspector checks whether the ground clearance H and the deviation D are appropriate and appropriate, and immediately takes corrective action for the defective portion. be able to.
【００１２】[0012]
【発明の効果】以上の説明のとおり、この発明の高さ・
偏位測定装置は、簡易に構成されて架線保守車に搭載さ
れ、随時の夜間走行により、トロリ線を支持するブラケ
ットの反射光を排除して、高さと偏位とを良好な精度で
測定し、測定データをチャート紙に連続して記録するも
ので、これにより、不良箇所に対する対応措置を直ちに
とることができるなど、トロリ線の保全管理に寄与する
効果には、大きいものがある。As described above, the height of the present invention
The deviation measuring device is simply configured and mounted on an overhead line maintenance vehicle, and the nighttime running from time to time eliminates the reflected light of the bracket supporting the trolley wire and measures the height and deviation with good accuracy. The measurement data is continuously recorded on the chart paper, and by doing so, it is possible to immediately take countermeasures against the defective portion, and thus, the effect of contributing to the maintenance management of the trolley wire is great.
【図１】図１は、架線保守車に搭載された測定装置の概
略の配置図である。FIG. 1 is a schematic layout of a measuring device mounted on an overhead line maintenance vehicle.
【図２】図２は、トロリ線の反射光の説明図である。FIG. 2 is an explanatory diagram of reflected light from a trolley wire.
【図３】図３は、ＩＴＶカメラの構成と撮影範囲および
受光角度の説明図である。FIG. 3 is an explanatory diagram of a configuration of an ITV camera, a shooting range, and a light receiving angle.
【図４】図４は、ＩＴＶカメラの画像の説明図である。FIG. 4 is an explanatory diagram of an image of the ITV camera.
【図５】図５は、画像信号の処理方法の説明図である。FIG. 5 is an explanatory diagram of an image signal processing method.
【図６】図６は、ブラケットの映像の除去方法の説明図
である。FIG. 6 is an explanatory diagram of a bracket image removing method.
【図７】図７は、トロリ線の架設構造を示す平面および
側面図である。FIG. 7 is a plan view and a side view showing a trolley wire installation structure.
【図８】図８は、トロリ線の地上高と偏位の最大変動範
囲を示す図である。FIG. 8 is a diagram showing a maximum variation range of ground clearance and deviation of a trolley wire.
１…トロリ線、２…支持電柱、21…ブラケット、22…吊
架線、23…ハンガー、３…電車、31…パンタグラフ、４
…架線保守車、41…屋根、５…測定光学系、51…線光
源、52…ＩＴＶカメラ、521 …対物レンズ、522 …ＣＣ
Ｄイメージセンサ、６…パーソナルコンピユータ、61…
接続ケーブル、Ｈ…トロリ線の地上高、Ｈ’…ＩＴＶカ
メラの地上高、ｈm …高さＨの最大変動範囲、Ｄ…偏
位、Ｄm …偏位Ｄの最大変動範囲、Ａ…トロリ線の２次
元の最大変動範囲、ＬT …線光束、ＬR …トロリ線の反
射光、ＬR ’…ブラケットの反射光、θR …受光角度、
ｅ…ＣＣＤイメージセンサの受光素子、Ｓ…トロリ線の
底面（摺面）、Ｔ…トロリ線、Ｔ’…トロリ線の映像、
Ｂ…ブラケット、Ｂ’…ブラケットの映像。1 ... trolley wire, 2 ... supporting electric pole, 21 ... bracket, 22 ... suspending wire, 23 ... hanger, 3 ... train, 31 ... pantograph, 4
… Cable maintenance vehicle, 41… Roof, 5… Measurement optical system, 51… Line light source, 52… ITV camera, 521… Objective lens, 522… CC
D image sensor, 6 ... Personal computer, 61 ...
Connection cable, H ... Ground clearance of trolley wire, H '... Ground clearance of ITV camera, hm ... Maximum fluctuation range of height H, D ... Deviation, Dm ... Maximum fluctuation range of deviation D, A ... Two-dimensional maximum fluctuation range, LT ... Line luminous flux, LR ... Reflected light of trolley wire, LR '... Reflected light of bracket, θR ... Receiving angle,
e ... Light receiving element of CCD image sensor, S ... Bottom surface (sliding surface) of trolley wire, T ... Trolley wire, T '... Image of trolley wire,
B ... Bracket, B '... Bracket image.
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.7，ＤＢ名) G01B 11/00 - 11/30 B60M 1/28 ─────────────────────────────────────────────────── ─── Continuation of front page (58) Fields surveyed (Int.Cl. 7 , DB name) G01B 11/00-11/30 B60M 1/28
Claims (2)
し、トロリ線に対して直角方向の線光束を鉛直上方に投
射する線光源と、該トロリ線の長手方向に対して撮影方
向が斜め上向きに設定され、高さと偏位の最大変動範囲
内の該トロリ線を撮像するＩＴＶカメラよりなる測定光
学系、および該ＩＴＶカメラの画像信号を処理するパー
ソナルコンピユータよりなり、前記保守車の走行中に、
前記線光束が投射されたトロリ線を、該ＩＴＶカメラに
より連続して撮像し、該ＩＴＶカメラが逐次に出力する
画像信号を該パーソナルコンピユータにより処理して、
該トロリ線の高さと偏位とをそれぞれ算出し、該算出さ
れた各データをチャート紙に連続して記録するものであ
って、前記線光源よりの線光束が、前記トロリ線を支持
するブラケットに投射されて、前記ＩＴＶカメラにより
撮像されたときは、該ＩＴＶカメラの受光素子の連続し
た個数を前記パーソナルコンピユータによりチェック
し、該個数が一定数より多いとき該ブラケットと判定し
て前記トロリ線の高さと偏位についての算出対象から除
去することを特徴とするトロリ線の高さ・偏位測定装
置。 1. A line light source which is mounted on an overhead line maintenance vehicle and which is used at night, and projects a line luminous flux in a direction perpendicular to the trolley wire vertically upward, and a photographing direction in a longitudinal direction of the trolley wire. The maintenance optical system comprises an ITV camera which is set obliquely upward and which images the trolley line within the maximum fluctuation range of height and excursion, and a personal computer which processes an image signal of the ITV camera. inside,
The trolley wire on which the linear luminous flux is projected is continuously imaged by the ITV camera, and image signals sequentially output by the ITV camera are processed by the personal computer,
The height and deflection of the contact wire respectively, to the calculated continuously recording the data issued the calculated on chart paper Monodea
Thus, the line light flux from the line light source supports the trolley wire.
It is projected on the bracket and the ITV camera
When the image is taken, the light receiving element of the ITV camera
Check the number of items with the personal computer
However, when the number is more than a certain number, the bracket is determined.
The height and deviation of the trolley wire from the calculation target.
Trolley wire height / deviation measuring device characterized by leaving
Place
Ｖカメラの画像信号のピーク値を求めて、該ピーク値に
より前記高さと偏位をそれぞれ算出することを特徴とす
る、請求項１記載のトロリ線の高さ・偏位測定装置。2. The personal computer is the IT
The trolley wire height / deviation measuring device according to claim 1, wherein a peak value of an image signal of the V camera is obtained, and the height and the deviation are calculated based on the peak value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33653794A JP3504359B2 (en) | 1994-12-22 | 1994-12-22 | Trolley wire height and deflection measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33653794A JP3504359B2 (en) | 1994-12-22 | 1994-12-22 | Trolley wire height and deflection measuring device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08178624A JPH08178624A (en) | 1996-07-12 |
| JP3504359B2 true JP3504359B2 (en) | 2004-03-08 |
Family
ID=18300165
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP33653794A Expired - Fee Related JP3504359B2 (en) | 1994-12-22 | 1994-12-22 | Trolley wire height and deflection measuring device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3504359B2 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102015212681A1 (en) * | 2015-07-07 | 2017-01-26 | Robert Bosch Gmbh | Method and device for detecting a catenary or busbar above a guideway |
| CN105300287A (en) * | 2015-11-30 | 2016-02-03 | 中铁电气化勘测设计研究院有限公司 | Contact line laser measuring instrument |
| JP2019015508A (en) * | 2017-07-03 | 2019-01-31 | 東日本電気エンジニアリング株式会社 | Overhead line measurement apparatus and overhead line measurement method |
| CN108801149B (en) * | 2018-03-06 | 2020-01-10 | 北京交通大学 | Contact net geometric parameter measuring method based on geometric amplification principle and monocular computer vision |
| CN112179274B (en) * | 2020-10-27 | 2022-02-22 | 中国铁道科学研究院集团有限公司 | Calibration device and method for contact net detection system |
| CN112977535B (en) * | 2021-05-11 | 2021-07-30 | 领视科技成都有限公司 | Electrified railway clearance detection method and system based on laser scanning |
-
1994
- 1994-12-22 JP JP33653794A patent/JP3504359B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH08178624A (en) | 1996-07-12 |
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