JP3273831B2 - Measuring method of snow thickness on railway vehicles - Google Patents
Measuring method of snow thickness on railway vehiclesInfo
- Publication number
- JP3273831B2 JP3273831B2 JP19429793A JP19429793A JP3273831B2 JP 3273831 B2 JP3273831 B2 JP 3273831B2 JP 19429793 A JP19429793 A JP 19429793A JP 19429793 A JP19429793 A JP 19429793A JP 3273831 B2 JP3273831 B2 JP 3273831B2
- Authority
- JP
- Japan
- Prior art keywords
- snow
- light beam
- underfloor equipment
- train
- thickness
- 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)
Description
【0001】[0001]
【産業上の利用分野】本発明は鉄道車両の床下機器に付
着した雪の厚さを列車が走行している状態で測定する方
法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for measuring the thickness of snow adhering to underfloor equipment of a railway vehicle while a train is running.
【0002】[0002]
【従来の技術】雪が車両から落下する際に砕石をはね飛
ばし沿線に害を与えるために、高速鉄道においては積雪
があると、雪を付着させないように徐行をしており、冬
期間の主たる列車遅延原因となっている。現在は列車が
走行している状態で鉄道車両の床下機器等に付着した雪
の厚さを測定する方法がないために、安全のために余裕
を見込んだ規制をしている。あえて、列車が走行してい
る状態で鉄道車両の床下機器等に付着した雪の厚さを測
定するには、測定する鉄道車両に対して線路直角方向に
高速度カメラを設置し、測定する鉄道車両の床下機器等
を連続的に撮影して、その中の任意のコマを選びだし
て、読み取ることで、鉄道車両の床下機器に付着した雪
の厚さを測定していた。しかしながら、この方法では多
くの手間と経費を要するため、鉄道車両の床下機器等に
付着した雪の厚さを測定して、即座に運転規制に反映さ
せることはできなかった。2. Description of the Related Art When snow falls from a vehicle, the crushed stones are thrown away and harmful to the railroads. Therefore, when there is snow on a high-speed railway, it is slowed down so that snow does not adhere. This is causing train delay. Currently, there is no method for measuring the thickness of snow adhering to underfloor equipment of a railway vehicle while a train is running, so regulations are given with a margin for safety. In order to measure the thickness of snow adhering to the underfloor equipment of a railway car while the train is running, a high-speed camera must be installed in the direction perpendicular to the track to measure the thickness of the railway car, and the railway The thickness of snow adhering to the underfloor equipment of a railway vehicle has been measured by continuously photographing the underfloor equipment and the like of the vehicle, selecting and reading an arbitrary frame from among them. However, this method requires a lot of labor and cost, and it has not been possible to measure the thickness of snow adhering to the underfloor equipment of a railway vehicle and immediately reflect the thickness in driving regulations.
【0003】[0003]
【問題が解決しようとする課題】従来の技術によれば、
列車が走行している状態では車両の床下機器等に付着し
た雪の厚さを測定するには、多くの人手と手間を要する
という問題点があった。本発明は前記のような問題点を
解決することを目的として、多くの手間と経費を必要と
せずに、列車が走行している状態で鉄道車両の床下機器
等に付着した雪の厚さを求める方法を提供することにあ
る。[Problems to be solved] According to the prior art,
In a state where the train is running, there is a problem that measuring the thickness of the snow attached to the underfloor equipment of the vehicle requires a lot of labor and labor. The present invention aims to solve the above-mentioned problems, and does not require much labor and cost, and reduces the thickness of snow attached to underfloor equipment of a railway vehicle while the train is running. The purpose is to provide a way to ask.
【0004】[0004]
【課題を解決するための手段】車両の床下機器へ付着す
る雪は側面や底面に少なく、進行方向前面に多い。よっ
て落雪の危険度を表現する尺度としては、進行方向に向
いた面に付着した雪の厚さを測定することが、最も有用
である。本発明は測定する鉄道車両の決められた車輪が
光ビームを遮断した後に次の車輪が光ビームを遮断する
までの時間と既知である車輪の軸距から列車の速度を求
め、測定する鉄道車両の雪が付着した床下機器等が光ビ
ームを遮断する時間と列車の速度とから雪が付着した床
下機器等の長さを求め、雪が付着した床下機器等の長さ
と既知である床下機器等の長さとの差から床下機器等に
付着した雪の厚さを求める方法である。Means for Solving the Problems The amount of snow adhering to the underfloor equipment of the vehicle is small on the side and the bottom, and is large on the front in the traveling direction. Therefore, as a scale expressing the degree of danger of falling snow, it is most useful to measure the thickness of snow attached to a surface facing the traveling direction. The present invention seeks to measure the speed of a train from the time until the next wheel cuts off the light beam after a certain wheel of the railcar to measure cuts off the light beam and the wheelbase of the known wheel, and measures the train speed. The length of the underfloor equipment to which snow adheres is obtained from the time at which the underfloor equipment to which snow adheres and the light beam are interrupted and the train speed, and the length of the underfloor equipment to which snow adheres and the known length of the underfloor equipment and the like This is a method of calculating the thickness of snow attached to underfloor equipment or the like from the difference between the two.
【0005】[0005]
【作用】着雪が随時監視できるようになれば、雪が付着
する限界の速度まで速度向上できる他、無雪区間で不要
な徐行を減らすことができる。[Action] Once so snow accretion can monitor at any time, except that it speeds increased to the speed limit snow adhering can reduce unnecessary creep without snow interval.
【0006】[0006]
【実施例】鉄道車両の着雪厚さ測定方法の1実施例につ
いて説明する。図1は測定する鉄道車両に対して線路直
角方向に光ビームを設定した状態を線路方向から見た状
態図であり、図2は列車の進行にともなって光ビームを
遮断する様子を線路直角方向から見た状態図であり、図
3は列車の進行にともなって光ビームを遮断したときの
出力波形で(a)は床下機器等の高さに設定した光ビー
ムを遮断したときの出力波形、(b)は車輪下部の高さ
に設定した光ビームを遮断したときの出力波形である。
ここで、1は発光器、2は受光器、3は床下機器の高さ
に設定した光ビーム、4は車輪下部の高さに設定した光
ビーム、5は床下機器、6は車輪、7は床下機器に付着
した雪、8は入光時の出力レベル、9は遮光時の出力レ
ベルである。発光器1から線路反対側の受光器2に向け
て、床下機器の高さに設定した光ビーム3、車輪下部の
高さに設定した光ビーム4を照射する。列車の進行にと
もなって、床下機器5が床下機器の高さに設定した光ビ
ーム3を遮断していく位置を点線で、列車の車輪6が車
輪下部の高さに設定した光ビーム4を遮断していく位置
を一点鎖線で示す。光ビームの進路に障害物が無い場合
には、受光器2は入射光の出力レベル8を出力する。光
ビームが車体部分または車体に付着した雪により遮断さ
れた場合には、受光器2は遮光時の出力レベル9を出力
する。受光素子をフードで覆ったり光学フィルターを使
用することで、入光時の出力レベル8と遮光時の出力レ
ベル9に十分な差を与えることができる。DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of a method for measuring the thickness of snow accretion on a railway vehicle will be described. FIG. 1 is a diagram showing a state in which a light beam is set in a direction perpendicular to the line with respect to a railway vehicle to be measured, as viewed from the line direction. FIG. FIG. 3 is an output waveform when the light beam is cut off as the train advances, (a) is an output waveform when the light beam set at the height of the underfloor equipment or the like is cut off , (B) is an output waveform when the light beam set at the height of the lower part of the wheel is cut off.
Here, 1 is a light emitter, 2 is a light receiver, 3 is a light beam set at the height of underfloor equipment, 4 is a light beam set at the height of the lower part of the wheel, 5 is underfloor equipment, 6 is a wheel, 7 is The snow attached to the underfloor equipment, 8 is an output level when light is incident, and 9 is an output level when light is shielded. A light beam 3 set at the height of the underfloor equipment and a light beam 4 set at the height of the lower part of the wheel are emitted from the light emitter 1 to the light receiver 2 on the opposite side of the track. As the train progresses, the position where the underfloor equipment 5 blocks the light beam 3 set at the height of the underfloor equipment is indicated by a dotted line, and the train wheel 6 blocks the light beam 4 set at the height of the lower part of the wheel. The position of the movement is indicated by a dashed line. If there is no obstacle in the path of the light beam, the light receiver 2 outputs the output level 8 of the incoming Shako. When the light beam is cut off by the snow attached to the vehicle body or the vehicle body, the light receiver 2 outputs an output level 9 at the time of light blocking. By covering the light receiving element with a hood or using an optical filter, it is possible to provide a sufficient difference between the output level 8 when light enters and the output level 9 when light is shielded.
【0007】車輪下部が光ビームを遮断することによ
り、車輪が光ビームの位置を通過する時間がわかる。決
められた車輪が通過してから次の車輪が通過するまでの
時間Tと車輪の軸距により、列車の速度を求めることが
できる。床下機器および床下機器に付着した雪が光ビー
ムを遮断する時間tと列車の速度により、雪が付着して
いる床下機器の列車進行方向の長さを求めることができ
る。ところで、床下機器の列車進行方向の長さは既知で
あるから、雪が付着している床下機器の列車進行方向の
長さと床下機器の列車進行方向の長さとの差分により、
床下機器に付着した雪の厚さを求めることができる。The time that the wheel passes through the position of the light beam is known by the lower wheel blocking the light beam. The speed of the train can be obtained from the time T from the passage of the determined wheel to the passage of the next wheel and the wheelbase of the wheel. The speed of the time t and the train snow stick to a floor equipment and floor equipment to shut off the light beam, it is possible to obtain the train traveling direction of length of the underfloor devices snow attached. By the way, since the length of the underfloor equipment in the train traveling direction is known, the difference between the length of the underfloor equipment to which snow adheres in the train traveling direction and the length of the underfloor equipment in the train traveling direction is:
The thickness of snow attached to underfloor equipment can be determined.
【0008】[0008]
【発明の効果】今までは多くの手間と経費を要していた
鉄道車両の床下機器等に付着した雪の厚さを測定する作
業を機械的に行うことにより、走行中に無人で自動的に
計測することができる。According to the present invention, the work of measuring the thickness of snow adhered to the underfloor equipment of a railway vehicle, which has conventionally required a lot of labor and cost, is performed automatically and unattended during traveling. Can be measured.
【図1】測定する鉄道車両に対して、線路直角方向に光
ビームを設定した状態を線路方向から見た状態図であ
る。FIG. 1 is a diagram illustrating a state in which a light beam is set in a direction perpendicular to a track with respect to a railway vehicle to be measured, as viewed from the track direction.
【図2】列車の進行にともなって、光ビームを遮断する
様子を線路直角方向から見た状態図である。FIG. 2 is a diagram showing a state in which a light beam is interrupted as a train advances, as viewed from a direction perpendicular to the track.
【図3】列車の進行にともなって、光ビームを遮断した
ときの出力波形で、(a)は床下機器等の高さに設定し
た光ビームを遮断したときの出力波形,(b)は車輪下
部の高さに設定した光ビームを遮断したときの出力波形
である。3A and 3B are output waveforms when a light beam is cut off as a train travels. FIG. 3A shows an output waveform when a light beam set at the height of underfloor equipment or the like is cut off, and FIG. It is an output waveform when the light beam set to the lower height is cut off.
1 発光器 2 受光器 3 床下機器の高さに設定した光ビーム 4 車輪下部の高さに設定した光ビーム 5 床下機器 6 車輪 7 床下機器に付着した雪 8 入光時の出力レベル 9 遮光時の出力レベル Reference Signs List 1 light emitter 2 light receiver 3 light beam set at the height of underfloor equipment 4 light beam set at the height of the lower part of the wheel 5 underfloor equipment 6 wheels 7 snow attached to underfloor equipment 8 output level when light enters 9 light blocking Output level
Claims (1)
下機器等に付着した雪の厚さを測定する方法において、 測定する鉄道車両に対して線路直角方向の車輪下部の高
さに光ビームを設定して、決められた車輪が光ビームを
遮断した後に次の車輪が光ビームを遮断するまでの時間
を計測し、 決められた車輪が光ビームを遮断した後に次の車輪が光
ビームを遮断するまでの時間と既知である車輪の軸距と
から列車の速度を求め、 測定する鉄道車両に対して線路直角方向の床下機器等の
高さに光ビームを設定して、雪が付着した床下機器等が
光ビームを遮断する時間を計測し、 雪が付着した床下機器等が光ビームを遮断する時間と列
車の速度とから雪が付着した床下機器等の長さを求め、 雪が付着した床下機器等の長さと既知である床下機器等
の長さとの差から床下機器等に付着した雪の厚さを求め
ることを特徴とする鉄道車両の着雪厚さ測定方法。1. A method for measuring the thickness of snow adhering to underfloor equipment of a railway vehicle while a train is running, comprising: Set the beam and measure the time until the next wheel blocks the light beam after the specified wheel blocks the light beam.After the specified wheel blocks the light beam, the next wheel starts the light beam. The speed of the train is calculated from the time required to shut off the train and the known wheel axle distance, and a light beam is set at the height of the underfloor equipment, etc., in the direction perpendicular to the track to the railcar to be measured, and snow adheres The length of time that the underfloor equipment blocks the light beam is measured, and the length of the underfloor equipment to which snow adheres is determined from the time at which the underfloor equipment with snow adheres to the light beam and the train speed, and the length of the underfloor equipment with snow is measured. Equal length and known underfloor equipment etc. Snow accretion thickness measurement method of railway vehicle and obtains the thickness of the snow deposited from the difference between the length of the floor equipment like.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP19429793A JP3273831B2 (en) | 1993-07-09 | 1993-07-09 | Measuring method of snow thickness on railway vehicles |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP19429793A JP3273831B2 (en) | 1993-07-09 | 1993-07-09 | Measuring method of snow thickness on railway vehicles |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH0727522A JPH0727522A (en) | 1995-01-27 |
JP3273831B2 true JP3273831B2 (en) | 2002-04-15 |
Family
ID=16322257
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP19429793A Expired - Fee Related JP3273831B2 (en) | 1993-07-09 | 1993-07-09 | Measuring method of snow thickness on railway vehicles |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP3273831B2 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4817867B2 (en) * | 2006-02-09 | 2011-11-16 | 公益財団法人鉄道総合技術研究所 | Regulated speed evaluation system for moving objects |
-
1993
- 1993-07-09 JP JP19429793A patent/JP3273831B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JPH0727522A (en) | 1995-01-27 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0274632B1 (en) | Method and apparatus for measurement of road profile | |
JPH11503520A (en) | Method and apparatus for non-contact measurement of road or rail distortion | |
RU2209149C2 (en) | Safety system preventing collision of trains and derailemtn of rail vehicles | |
CN201576094U (en) | Safety travelling positioning system of vehicle | |
CA2102140A1 (en) | Wayside Monitoring of the Angle-of-Attack of Railway Vehicle Wheelsets | |
US5936737A (en) | Wheelset sensing system | |
WO2000005120A3 (en) | Method and device for inspecting a railroad wheel | |
US4820057A (en) | Method and apparatus to contactlessly measure the brake temperatures of passing railroad cars | |
JP3273831B2 (en) | Measuring method of snow thickness on railway vehicles | |
JPS627483B2 (en) | ||
JPH024855Y2 (en) | ||
JP2003011819A (en) | Track vehicle automatic control system | |
KR100799330B1 (en) | Traction and brake force detecting system for railroad and the method | |
JP2003044977A (en) | Method, instrument, and system for travel visibility measurement | |
JPS5930113A (en) | Control device for traveling operation of truck | |
BG62391B1 (en) | Method for braking and/or locking of transport vehicle running on a rail track | |
JP3967942B2 (en) | Rail fluctuation amount measuring method, rail fluctuation amount and rail gap measuring method, and measuring device used for the measurement | |
GB2406395A (en) | Lateral acceleration control system | |
JPH0587565A (en) | Distance detector | |
ATE428598T1 (en) | DEVICE AND METHOD FOR CONTROLLING THE SPEED OF A RAIL VEHICLE AND SYSTEMS CONTAINING SUCH DEVICE | |
JPH09210905A (en) | Sensing device for road surface moistness with laser | |
Merala et al. | Tractor Semitrailer Left Turns and Lane Changes | |
US20180105193A1 (en) | Signal Effectiveness Enhancement System | |
JP2951626B2 (en) | Ultrasonic tunnel wind speed measurement method | |
JP2584847Y2 (en) | Traveling vehicle distance measuring device |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
LAPS | Cancellation because of no payment of annual fees |