JP2017013581A - Track short-circuit device - Google Patents

Track short-circuit device Download PDF

Info

Publication number
JP2017013581A
JP2017013581A JP2015130577A JP2015130577A JP2017013581A JP 2017013581 A JP2017013581 A JP 2017013581A JP 2015130577 A JP2015130577 A JP 2015130577A JP 2015130577 A JP2015130577 A JP 2015130577A JP 2017013581 A JP2017013581 A JP 2017013581A
Authority
JP
Japan
Prior art keywords
short
light emitting
circuit
emitting element
track
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.)
Granted
Application number
JP2015130577A
Other languages
Japanese (ja)
Other versions
JP6573492B2 (en
Inventor
健太郎 長山
Kentaro Nagayama
健太郎 長山
藤本　聡
Satoshi Fujimoto
聡 藤本
智美 村上
Tomomi Murakami
智美 村上
和博 伊藤
Kazuhiro Ito
和博 伊藤
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
East Japan Railway Co
Original Assignee
East Japan Railway Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by East Japan Railway Co filed Critical East Japan Railway Co
Priority to JP2015130577A priority Critical patent/JP6573492B2/en
Publication of JP2017013581A publication Critical patent/JP2017013581A/en
Application granted granted Critical
Publication of JP6573492B2 publication Critical patent/JP6573492B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Train Traffic Observation, Control, And Security (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a track short-circuit device which can allow a maintenance man during work on a route to promptly notice that a short circuit between rails according to the track short-circuit device has been released, and thereby achieve rapid correction of the short-circuit state of the track.SOLUTION: A track short-circuit device (1) for short-circuiting between a pair of rails constituting a railway track comprises: cable parts (10 and 11) for flowing short-circuit current between the rails; a detector for detecting a short-circuit state between the rails; a plurality of light-emitting elements (105) arranged continuously on the cable parts in a longitudinal direction of the cable parts; and a controller for controlling light-emission of the light-emitting elements. The controller is configured to switch a light-emitting mode of the light-emitting elements on the basis of a detection result of the detector, and make the light-emitting elements emit light when at least the detector has detected short-circuit failure.SELECTED DRAWING: Figure 1

Description

本発明は、鉄道の保安装置に擬似的に鉄道車両が在線であると検出させるために、軌道の一対のレール間を短絡させる軌道短絡装置に関する。   The present invention relates to a track short-circuiting device that short-circuits a pair of rails of a track in order to cause a railroad security device to detect that a railroad vehicle is in a simulated state.

鉄道路線の保守または工事の際には、軌道短絡装置を用いて軌道の一対のレール間を短絡させることが一般に行われている。この短絡により、軌道回路を用いて鉄道車両の検出を行う保安装置の検出装置が、擬似的に車両在線と検知し、鉄道の信号機が車両進入禁止へ切り替えられる。これにより、他の鉄道車両が路線内の作業区間へ進入することを阻止できる。
軌道短絡装置により一対のレール間を短絡する際、レールと軌道短絡装置との接続不良等により短絡が正常に行われていないと、鉄道の信号機が車両進入禁止へ切り替わらない。従来、このような不都合を解消するために軌道短絡装置に照査機能を付加する提案が行われている。 In maintenance or construction of railway lines, it is common practice to short-circuit between a pair of rails using a track short-circuit device. Due to this short circuit, the detection device of the security device that detects the railway vehicle using the track circuit detects that the vehicle is in the simulated state, and the railway traffic signal is switched to the vehicle entry prohibition. As a result, it is possible to prevent other railway vehicles from entering the work section in the route.
When the pair of rails is short-circuited by the track short-circuit device, if the short-circuit is not normally performed due to poor connection between the rail and the track short-circuit device, the railway traffic signal is not switched to the vehicle entry prohibition. Conventionally, in order to eliminate such inconveniences, proposals have been made to add a check function to the track short circuit device.

例えば、特許文献１には、一対のレール間の短絡抵抗を計測し、短絡抵抗が一定値以下のときに正常短絡の表示を行う軌道短絡装置が提案されている。また、特許文献２には、軌道短絡装置が一対のレール間を正常に短絡しているか否かを検知する短絡検知部を備え、短絡検知部のランプの点灯により正常短絡を通知する構成が提案されている。   For example, Patent Document 1 proposes a track short-circuit device that measures a short-circuit resistance between a pair of rails and displays a normal short-circuit when the short-circuit resistance is a predetermined value or less. Patent Document 2 proposes a configuration that includes a short-circuit detection unit that detects whether or not the track short-circuiting device normally short-circuits between the pair of rails, and that notifies the normal short circuit by lighting the lamp of the short-circuit detection unit. Has been.

特開平０８−０２６１１１号公報Japanese Patent Application Laid-Open No. 08-026111 特開平０６−２３９２３６号公報Japanese Patent Laid-Open No. 06-239236

特許文献１または特許文献２の軌道短絡装置を使用することで、表示またはランプの点灯によって、軌道短絡装置を正常に設置できたか確認できるので、接続不良等により短絡が不十分のまま路線内での作業が行われてしまうといった不都合を避けることができる。
しかしながら、このような照査機能を有する軌道短絡装置を使用していても、路線内での作業中、軌道短絡装置によるレール間の短絡が解除されてしまうと、多くの場合、保守員がこの変化に気付かないまま、路線内の作業が続けられてしまうと考えられた。保守員は軌道短絡装置から離れた箇所でも作業を行うので、遠くから軌道短絡装置の表示またはランプの点灯を確認することが難しい。 By using the track short circuit device of Patent Document 1 or Patent Document 2, it is possible to confirm whether the track short circuit device has been normally installed by displaying or lighting the lamp. It is possible to avoid the inconvenience that the above work is performed.
However, even if the track short-circuit device having such a check function is used, if the short-circuit between the rails due to the track short-circuit device is released during work on the route, in many cases, the maintenance staff will make this change. It was thought that work on the route could continue without noticing. Since maintenance personnel also work at locations away from the track short circuit device, it is difficult to confirm the display of the track short circuit device or the lighting of the lamp from a distance.

本発明は、路線内での作業中に軌道短絡装置によるレール間の短絡が解除された場合でも、このことを速やかに保守員に気付かせることができ、これにより速やかな軌道の短絡状態の修正を図ることのできる軌道短絡装置を提供することを目的としている。   Even when the short circuit between the rails by the track short circuit device is released during the work on the route, the present invention can promptly notice this to the maintenance staff, thereby promptly correcting the short circuit state of the track. An object of the present invention is to provide an orbital short-circuit device capable of achieving the above.

本発明は、上記目的を達成するため、鉄道の軌道を構成する一対のレール間を短絡させる軌道短絡装置であって、
前記レール間の短絡電流を流すケーブル部と、
前記レール間の短絡状態を検出する検出部と、
前記ケーブル部に前記ケーブル部の長手方向に連なるように設けられた複数の発光素子と、
前記複数の発光素子の発光を制御する制御部と、
を備え、
前記制御部は、前記検出部の検出結果に基づき前記発光素子の発光態様を切り替え、且つ、少なくとも前記検出部が短絡不良を検出している場合に前記発光素子を発光させることを特徴としている。 In order to achieve the above object, the present invention is a track short-circuit device for short-circuiting a pair of rails constituting a railroad track,
A cable portion for passing a short-circuit current between the rails;
A detection unit for detecting a short circuit state between the rails;
A plurality of light emitting elements provided in the cable portion so as to be continuous in the longitudinal direction of the cable portion;
A control unit for controlling light emission of the plurality of light emitting elements;
With
The control unit switches a light emission mode of the light emitting element based on a detection result of the detection unit, and causes the light emitting element to emit light at least when the detection unit detects a short circuit failure.

この構成によれば、複数の発光素子がケーブル部に設けられているので、軌道短絡装置の発光の視認性が向上する。例えば、路線内で作業を行っている保守員は、離れた箇所からでも、軌道短絡装置の発光を容易に認識できる。また、制御部は、検出部が検出した短絡状態によって発光素子の発光態様を切り替え、且つ、短絡不良と検出されている場合でも発光素子を発光させる。よって、保守員が路線内で作業を行っている間に軌道の短絡状態が不良となった場合でも、短絡不良に対応した発光素子の発光態様により、保守員に短絡不良になったことを気付かせやすい。これにより、保守員が軌道短絡装置を設置し直すなど、速やかな軌道の短絡状態の修正が図られる。   According to this structure, since the several light emitting element is provided in the cable part, the visibility of the light emission of an orbital short circuit apparatus improves. For example, a maintenance worker working on a route can easily recognize the light emission of the track short-circuiting device even from a remote location. Further, the control unit switches the light emission mode of the light emitting element according to the short circuit state detected by the detection unit, and causes the light emitting element to emit light even when the short circuit failure is detected. Therefore, even when the maintenance staff is working on the route, even if the short circuit condition of the track becomes defective, the maintenance staff notices that the short circuit is defective due to the light emission mode of the light emitting element corresponding to the short circuit failure. Easy to do. As a result, it is possible to quickly correct the short-circuit state of the track, such as a maintenance person re-installing the track short-circuit device.

好ましくは、前記複数の発光素子は、前記ケーブル部の第１区間に配置された第１発光素子群と、前記第１区間と異なる前記ケーブル部の第２区間に配置された第２発光素子群とを含み、
前記制御部は、少なくとも前記検出部が短絡不良を検出している場合に、前記第１発光素子群と前記第２発光素子群とを交互に点滅させるように構成するとよい。
この構成によれば、少なくとも検出部が短絡不良を検出している場合に、ケーブル部の第１区間と第２区間とで交互に発光の点滅が行われるので、路線内で作業を行っている保守員に、より確実に短絡不良になったことを気付かせることができる。 Preferably, the plurality of light emitting elements are a first light emitting element group disposed in a first section of the cable portion and a second light emitting element group disposed in a second section of the cable portion different from the first section. Including
The control unit may be configured to blink the first light emitting element group and the second light emitting element group alternately when at least the detection unit detects a short circuit failure.
According to this configuration, when at least the detection unit detects a short circuit failure, the flashing of the light is alternately performed in the first section and the second section of the cable section, so that the work is performed in the route. The maintenance staff can be more surely aware of the short circuit failure.

また好ましくは、前記一対のレールにそれぞれ固定されて電気的に接続する一対の接続部と、前記制御部を収容するベース体と、をさらに備え、前記ベース体には、前記一対の接続部を磁力により保持可能な一対の保持ベースが設けられているとよい。
この構成によれば、例えば装置の収納時または移動時など、接続部の周囲にケーブル部を巻くようにして、接続部を保持ベース保持させることで、ケーブル部を含めて装置全体をコンパクトにまとめることができる。 Preferably, the apparatus further includes a pair of connection portions that are respectively fixed and electrically connected to the pair of rails, and a base body that houses the control unit, and the base body includes the pair of connection portions. A pair of holding bases that can be held by magnetic force may be provided.
According to this configuration, for example, when the device is stored or moved, the cable portion is wound around the connection portion, and the connection portion is held on the holding base so that the entire device including the cable portion is compactly collected. be able to.

本発明によれば、路線内での作業中に軌道短絡装置によるレール間の短絡が解除されてしまっても、路線内の保守員に短絡不良になったことを気付かせることができ、これにより正常な短絡状態へ速やかな修正を図ることができるという効果が得られる。   According to the present invention, even if the short circuit between the rails by the track short circuit device is released during the work in the route, the maintenance staff in the route can be made aware that the short circuit has become defective. The effect that quick correction to a normal short circuit state can be achieved is obtained.

本発明の実施の形態に係る軌道短絡装置を示すもので、（ａ）は全体図、（ｂ）は領域Ａの部分の拡大図である。BRIEF DESCRIPTION OF THE DRAWINGS The track | orbit short circuit apparatus which concerns on embodiment of this invention is shown, (a) is a general view, (b) is an enlarged view of the area | region A part. 本発明の実施の形態に係る軌道短絡装置の回路構成を示す図である。It is a figure which shows the circuit structure of the track | orbit short circuit apparatus which concerns on embodiment of this invention. 本発明の実施の形態に係る軌道短絡装置の制御処理を示すフローチャートである。It is a flowchart which shows the control processing of the track short circuit apparatus which concerns on embodiment of this invention.

以下、本発明の各実施の形態について図面を参照して詳細に説明する。
図１は、本発明の実施の形態に係る軌道短絡装置を示すもので、（ａ）は全体図、（ｂ）は領域Ａの部分の拡大図である。
本実施の形態の軌道短絡装置１は、鉄道の軌道を構成する一対のレール間を短絡させる装置であり、図１（ａ）に示すように、一対のレールにそれぞれ接続する２つの接続部１２、１３と、レール間の短絡電流を流すケーブル部１０、１１と、制御基盤等を含むベース体２とを備えている。 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
1A and 1B show an orbital short-circuit device according to an embodiment of the present invention. FIG. 1A is an overall view, and FIG. 1B is an enlarged view of a region A.
The track short-circuit device 1 of the present embodiment is a device for short-circuiting a pair of rails constituting a railroad track, and as shown in FIG. 1 (a), two connection portions 12 respectively connected to the pair of rails. , 13, cable portions 10 and 11 for passing a short-circuit current between the rails, and a base body 2 including a control base and the like.

接続部１２、１３は、例えば磁石によりレールに固定され、電流を流す電極端子をレールに電気的に接続する。なお、接続部１２、１３による接続構造は、特に制限されるものでなく、例えばレールを把持するクリップ形式の構造を採用してもよい。
ケーブル部１０、１１は、レール間の短絡電流を流すためのもので、一端が接続部１２、１３にそれぞれ接続され、他端がベース体２の左部分と右部分とにそれぞれ接続されている。ケーブル部１０、１１の所定の区間２０、２１には、複数の発光素子１０５が連なるように設けられている。
詳細には、図１（ｂ）に示すように、ケーブル部１０、１１は、短絡電流を流す導線を被覆してなる導線コード１０２と、導線コード１０２の側面に導線コード１０２に沿って配置される発光素子テープ１０３と、導線コード１０２と発光素子テープ１０３とを覆う透明被覆１０１とを有している。発光素子テープ１０３は、幅が狭くて長い帯状の形態であり、複数の発光素子１０５が連なるように設けられている。 The connection parts 12 and 13 are fixed to the rail by, for example, magnets, and electrically connect electrode terminals through which current flows to the rail. In addition, the connection structure by the connection parts 12 and 13 is not specifically limited, For example, you may employ | adopt the structure of the clip type which hold | grips a rail.
The cable portions 10 and 11 are for flowing a short-circuit current between rails, and one end is connected to each of the connection portions 12 and 13 and the other end is connected to the left portion and the right portion of the base body 2. . In the predetermined sections 20 and 21 of the cable portions 10 and 11, a plurality of light emitting elements 105 are provided so as to be continuous.
Specifically, as shown in FIG. 1B, the cable portions 10 and 11 are disposed along the conductor cord 102 on the side surface of the conductor cord 102 and the conductor cord 102 formed by covering the conductor that passes the short-circuit current. A light-emitting element tape 103, and a transparent coating 101 that covers the conductor cord 102 and the light-emitting element tape 103. The light-emitting element tape 103 has a narrow and long strip shape, and is provided so that a plurality of light-emitting elements 105 are connected.

複数の発光素子１０５が設けられる区間２０、２１は、ケーブル部１０、１１のベース体２に近い端部と、接続部１２、１３に近い端部とを避けた残りの区間である。ベース体２に近い端部と接続部１２、１３に近い端部では、ケーブル部１０、１１が急峻に曲げられる場合があるが、中央の区間２０、２１では、このような急峻な曲りが生じにくい。よって、この区間２０、２１に発光素子１０５を設けることで、発光素子テープ１０３の疲労破壊を生じにくくすることができる。
ここで、区間２０、２１は、本発明に係る第１区間と第２区間との一例に相当する。また、区間２０に設けられている複数の発光素子１０５と区間２１に設けられている複数の発光素子１０５とが、本発明に係る第１発光素子群および第２発光素子群にそれぞれ相当する。 The sections 20 and 21 in which the plurality of light emitting elements 105 are provided are remaining sections that avoid the end portions close to the base body 2 of the cable portions 10 and 11 and the end portions close to the connection portions 12 and 13. The cable portions 10 and 11 may be steeply bent at the end portion close to the base body 2 and the end portions close to the connection portions 12 and 13, but such a steep bend occurs in the central sections 20 and 21. Hateful. Therefore, by providing the light emitting element 105 in the sections 20 and 21, it is possible to make the light emitting element tape 103 less susceptible to fatigue failure.
Here, the sections 20 and 21 correspond to examples of the first section and the second section according to the present invention. The plurality of light emitting elements 105 provided in the section 20 and the plurality of light emitting elements 105 provided in the section 21 correspond to the first light emitting element group and the second light emitting element group according to the present invention, respectively.

発光素子テープ１０３は、導線コード１０２の一側面に沿うように配置されている。この構成では、路線内にケーブル部１０、１１を設置したときに、発光素子１０５の列が地面に向いてしまう場合が生じる。しかしながら、この場合でも、地面で散乱した発光素子１０５の光が離れた箇所まで届くので、発光の視認性が低下することがない。短絡装置１は通常夜間に使用される。
なお、発光素子テープ１０３は、導線コード１０２の周囲をらせん状に巻くように配置されてもよい。また、複数の発光素子テープ１０３が、導線コード１０２の向きの異なる複数の側面に沿うように配置されてもよい。これらの構成によれは、路線内にケーブル部１０、１１を設置したときに、ケーブル部１０、１１の向きによらずに、複数の発光素子１０５を色々な方向に向けることができる。 The light emitting element tape 103 is arranged along one side surface of the conducting wire cord 102. In this configuration, when the cable portions 10 and 11 are installed in the route, the row of the light emitting elements 105 may face the ground. However, even in this case, since the light of the light emitting element 105 scattered on the ground reaches a distant place, the light emission visibility does not deteriorate. The short-circuit device 1 is usually used at night.
The light emitting element tape 103 may be arranged so as to be wound around the conductor cord 102 in a spiral shape. Moreover, the some light emitting element tape 103 may be arrange | positioned along the several side surface from which direction of the conducting wire cord 102 differs. According to these configurations, when the cable portions 10 and 11 are installed in the route, the plurality of light emitting elements 105 can be directed in various directions regardless of the orientation of the cable portions 10 and 11.

ベース体２は、制御基盤と、制御基盤を収容した収容部１６と、制御基盤の電源を供給するための電池を収容した電池収容部１５と、装置を持ち運ぶ際に利用される取手１４と、装置の保管または装置を持ち運ぶ際に接続部１２、１３を保持できる保持ベース１７、１８とを備えている。接続部１２、１３の周囲にケーブル部１０、１１を巻くようにして、接続部１２、１３を保持ベース１７、１８に例えば磁力により保持させることで、ケーブル部１０、１１を含めて装置全体をコンパクトにまとめることができる。   The base body 2 includes a control base, a storage 16 that stores the control base, a battery storage 15 that stores a battery for supplying power to the control base, a handle 14 that is used when carrying the device, Holding bases 17 and 18 are provided that can hold the connecting portions 12 and 13 when storing or carrying the device. By wrapping the cable portions 10 and 11 around the connection portions 12 and 13 and holding the connection portions 12 and 13 on the holding bases 17 and 18 by, for example, magnetic force, the entire apparatus including the cable portions 10 and 11 can be obtained. It can be summarized in a compact.

図２は、本発明の実施の形態に係る軌道短絡装置の回路構成を示す図である。図２中、発光素子テープ１０３（図１（ｂ）を参照）について、左のケーブル部１０に設けられたものを符号１０３Ｌで表わし、右のケーブル部１１に設けられたものを符号１０３Ｒで表わしている。また、図２中、左の発光素子テープ１０３Ｌに設けられた複数の発光素子１０５を代表して１つのみ記載し、右の発光素子テープ１０３Ｒに設けられた複数の発光素子１０５を代表して１つのみ記載している。左の発光素子テープ１０３Ｌに含まれる複数の発光素子１０５は互いに並列に接続されており、右の発光素子テープ１０３Ｒに含まれる複数の発光素子１０５は互いに並列に接続されている。   FIG. 2 is a diagram showing a circuit configuration of the track short circuit device according to the embodiment of the present invention. In FIG. 2, regarding the light emitting element tape 103 (see FIG. 1B), the one provided in the left cable portion 10 is represented by reference numeral 103L, and the one provided in the right cable section 11 is represented by reference numeral 103R. ing. In FIG. 2, only one light emitting element 105 provided on the left light emitting element tape 103L is representatively shown, and only one light emitting element 105 provided on the right light emitting element tape 103R is representative. Only one is listed. The plurality of light emitting elements 105 included in the left light emitting element tape 103L are connected in parallel to each other, and the plurality of light emitting elements 105 included in the right light emitting element tape 103R are connected in parallel to each other.

軌道短絡装置１には、図２に示すように、レール間の交流電圧を計測する電圧計測回路４１と、交流の短絡電流を計測する電流計測回路４２と、安定化電源５９と、ベース体２に設けられた発光素子Ｅ１、Ｅ２と、発光の制御を行う制御部（ＣＰＵ：中央処理演算装置）５８と、制御部５８により切り替えられるスイッチＲ１〜Ｒ８と、電源投入用のスイッチＳＷ１と、ケーブル部１０、１１に設けられた発光素子テープ１０３Ｌ、１０３Ｒとが設けられている。スイッチＳＷ１はベース体２の外周部に設けられ、電圧計測回路４１、電流計測回路４２、安定化電源５９、発光素子Ｅ１、Ｅ２、および制御部５８等は制御基盤に搭載されて収容部１６に収容されている。
これらのうち、電圧計測回路４１と電流計測回路４２とが、本発明に係る検出部の一例に相当する。 As shown in FIG. 2, the track short circuit device 1 includes a voltage measuring circuit 41 that measures an AC voltage between rails, a current measuring circuit 42 that measures an AC short-circuit current, a stabilizing power source 59, and a base body 2. Light-emitting elements E1 and E2, a control unit (CPU: central processing unit) 58 for controlling light emission, switches R1 to R8 switched by the control unit 58, a switch SW1 for turning on the power, and a cable Light emitting element tapes 103L and 103R provided in the portions 10 and 11 are provided. The switch SW1 is provided on the outer periphery of the base body 2, and the voltage measuring circuit 41, the current measuring circuit 42, the stabilizing power supply 59, the light emitting elements E1, E2, the control unit 58, and the like are mounted on the control base and are installed in the housing unit 16. Contained.
Among these, the voltage measurement circuit 41 and the current measurement circuit 42 correspond to an example of the detection unit according to the present invention.

ケーブル部１０、１１に設けられた発光素子１０５は、発光色の異なる２つの素子Ｅ３、Ｅ４が一体的に設けられた構成であり、２つの素子Ｅ３、Ｅ４のうち一方を選択的に駆動できるように構成されている。特に制限されないが、この実施の形態では、電圧の印加方向を変えることで、発光させる素子Ｅ３、Ｅ４を選択できるように構成されている。   The light emitting element 105 provided in the cable portions 10 and 11 has a configuration in which two elements E3 and E4 having different emission colors are integrally provided, and one of the two elements E3 and E4 can be selectively driven. It is configured as follows. Although not particularly limited, this embodiment is configured such that the elements E3 and E4 that emit light can be selected by changing the voltage application direction.

電圧計測回路４１は、特に制限されるものではないが、接続部１２、１３の電極端子間の電圧を入力して増幅する増幅部５２と、レール間に出力されている交流電圧の周波数を通過帯域に含んだバンドパスフィルタ５４と、交流電圧を直流の実効値電圧に変換する実効値変換回路５６とを有している。直流の実効値電圧は、制御部５８によりＡ／Ｄ変換されて入力される。電圧計測回路４１に入力される電圧は、一対の接続部１２、１３の電極端子のうち、接触面積が小さくレールへの強い接触が可能な電極部位の電圧とするとよい。また、電圧計測回路４１に電圧を送る信号線は、ケーブル部１０、１１の短絡電流を流す導線と独立して設けるとよい。これにより、接続部１２、１３とレールとの接触が弱くて正常な短絡電流が流れない場合でも、電圧計測回路４１には電圧降下の少ない正しいレール間の電圧が入力されて、これを計測することができる。   The voltage measurement circuit 41 is not particularly limited, but passes the frequency of the AC voltage output between the amplifying unit 52 that inputs and amplifies the voltage between the electrode terminals of the connection units 12 and 13 and the rail. A band-pass filter 54 included in the band and an effective value conversion circuit 56 that converts an AC voltage into a DC effective value voltage are included. The DC effective value voltage is A / D converted by the control unit 58 and input. The voltage input to the voltage measurement circuit 41 may be a voltage of an electrode portion of the electrode terminals of the pair of connection portions 12 and 13 that has a small contact area and can be strongly contacted with the rail. In addition, the signal line for sending the voltage to the voltage measuring circuit 41 may be provided independently of the conducting wire for passing the short-circuit current of the cable portions 10 and 11. As a result, even when the contact between the connection parts 12 and 13 and the rail is weak and a normal short-circuit current does not flow, the voltage between the correct rails with a small voltage drop is input to the voltage measurement circuit 41 and measured. be able to.

電流計測回路４２は、特に制限されるものではないが、短絡電流の経路が中央部に通される検出コイル５１と、検出コイル５１の出力を増幅する増幅部５３と、レール間に出力されている交流電圧の周波数を通過帯域に含んだバンドパスフィルタ５５と、検出コイル５１の交流の検出電圧を直流の実効値電圧に変換する実効値変換回路５７とを有している。直流の実効値電圧は、制御部５８によりＡ／Ｄ変換されて、交流の短絡電流の実効値を表わす値として入力される。   The current measuring circuit 42 is not particularly limited, but is output between the detection coil 51 in which the path of the short-circuit current passes through the center, the amplification unit 53 that amplifies the output of the detection coil 51, and the rail. A band-pass filter 55 including the frequency of the AC voltage in the pass band, and an effective value conversion circuit 57 that converts the AC detection voltage of the detection coil 51 into a DC effective value voltage. The DC effective value voltage is A / D converted by the control unit 58 and input as a value representing the effective value of the AC short-circuit current.

安定化電源５９は、電池６０の電圧ＶＣＣから、発光素子Ｅ１、Ｅ２、１０５を発光させる駆動電圧ＶＤＤを生成する。駆動電圧ＶＤＤは、制御部５８の出力端子ＯＵＴ＋、ＯＵＴ−から発光素子１０５へ出力される。
制御部５８は、短絡電流とレール間電圧との計測値を入力し、後述する制御処理を行って、選択信号ＳＥＬのオン（ハイレベル）／オフ（ローレベル）を選択する。選択信号ＳＥＬのオン／オフによって、スイッチＲ１〜Ｒ４が切り替えられる。
また、制御部５８は、発光素子１０５の点滅周期でオン／オフする周期信号ＣＬＫを出力する。この点滅周期は、人が点滅を十分に視認できる程度に遅い周期である。その他、制御部５８は、電池電圧ＶＣＣを監視して電池６０の残量低下の検出も行う。 The stabilized power source 59 generates a drive voltage VDD for causing the light emitting elements E1, E2, and 105 to emit light from the voltage VCC of the battery 60. The drive voltage VDD is output from the output terminals OUT + and OUT− of the control unit 58 to the light emitting element 105.
The control unit 58 inputs measurement values of the short-circuit current and the voltage between the rails, performs a control process described later, and selects ON (high level) / OFF (low level) of the selection signal SEL. The switches R1 to R4 are switched by turning on / off the selection signal SEL.
Further, the control unit 58 outputs a periodic signal CLK that is turned on / off at the blinking cycle of the light emitting element 105. This blinking period is a period that is slow enough to allow a person to see blinking sufficiently. In addition, the control unit 58 also monitors the battery voltage VCC and detects a decrease in the remaining amount of the battery 60.

上記のような回路構成によれば、制御部５８が、選択信号ＳＥＬをオン、その反転信号ＳＥＬ￣をオフにすることで、スイッチＲ１が閉、スイッチＲ２が開、スイッチＲ３、Ｒ４が順方向に切り替えられる。これにより、正常短絡を表わす発光素子Ｅ１が発光し、短絡不良を表わす発光素子Ｅ２が消灯する。また、ケーブル部１０、１１の発光素子１０５、１０５のうち正常短絡を表わす緑色発光の素子Ｅ４に駆動電圧ＶＤＤが出力可能になる。そして、周期信号ＣＬＫがオンのときに右の発光素子テープ１０３Ｒの素子Ｅ４が発光し、その反転信号ＣＬＫ￣がオンのときに左の発光素子テープ１０３Ｌの素子Ｅ４が発光する。これにより、左右の発光素子テープ１０３Ｌ、１０３Ｒで、緑色の発光による点滅が交互に行われる。   According to the circuit configuration as described above, the control unit 58 turns on the selection signal SEL and turns off the inverted signal SEL￣ so that the switch R1 is closed, the switch R2 is opened, and the switches R3 and R4 are forward. Can be switched to. Thereby, the light emitting element E1 representing a normal short circuit emits light, and the light emitting element E2 representing a short circuit failure is turned off. Further, the drive voltage VDD can be output to the green light emitting element E4 representing the normal short circuit among the light emitting elements 105, 105 of the cable portions 10, 11. When the periodic signal CLK is on, the element E4 of the right light emitting element tape 103R emits light, and when the inverted signal CLK is on, the element E4 of the left light emitting element tape 103L emits light. Accordingly, the left and right light emitting element tapes 103L and 103R are alternately blinked by green light emission.

逆に、制御部５８が、選択信号ＳＥＬをオフ、その反転信号ＳＥＬ￣をオンにすることで、スイッチＲ１が開、スイッチＲ２が閉、スイッチＲ３、Ｒ４が逆方向に切り替えられる。これにより、正常短絡を表わす発光素子Ｅ１が消灯し、短絡不良を表わす発光素子Ｅ２が発光する。また、ケーブル部１０、１１の発光素子１０５、１０５のうち短絡不良を表わす黄色発光の素子Ｅ３に駆動電圧ＶＤＤが出力可能になる。そして、周期信号ＣＬＫがオンのときに右の発光素子テープ１０３Ｒの素子Ｅ３が発光し、その反転信号ＣＬＫ￣がオンのときに左の発光素子テープ１０３Ｌの素子Ｅ３が発光する。これにより、左右の発光素子テープ１０３Ｌ、１０３Ｒで、黄色の発光による点滅が交互に行われる。   Conversely, when the control unit 58 turns off the selection signal SEL and turns on the inverted signal SELＳ, the switch R1 is opened, the switch R2 is closed, and the switches R3 and R4 are switched in the reverse direction. As a result, the light emitting element E1 representing the normal short circuit is turned off, and the light emitting element E2 representing the short circuit defect emits light. In addition, the drive voltage VDD can be output to the yellow light emitting element E3 indicating a short circuit failure among the light emitting elements 105, 105 of the cable portions 10, 11. When the periodic signal CLK is on, the element E3 of the right light emitting element tape 103R emits light, and when the inverted signal CLK is on, the element E3 of the left light emitting element tape 103L emits light. As a result, the left and right light emitting element tapes 103L and 103R are alternately blinked by yellow light emission.

次に、制御部５８が、選択信号ＳＥＬのオン／オフを切り替える制御処理について説明する。
図３は、本発明の実施の形態に係る軌道短絡装置の制御処理を示すフローチャートである。
電源投入のスイッチＳＷ１が投入されると、制御部５８は、ステップＳ１〜Ｓ９のループ処理を繰り返し実行する。
ステップＳ１では、短絡電流を測定するため、制御部５８は電流計測回路４２の検出結果を読み込む。 Next, a control process in which the control unit 58 switches on / off of the selection signal SEL will be described.
FIG. 3 is a flowchart showing a control process of the track short-circuit apparatus according to the embodiment of the present invention.
When the power-on switch SW1 is turned on, the control unit 58 repeatedly executes the loop process of steps S1 to S9.
In step S1, the control unit 58 reads the detection result of the current measuring circuit 42 in order to measure the short circuit current.

ステップＳ２では、制御部５８は測定した短絡電流の値を三段階に判定する。判定の結果、制御部５８は、短絡電流の値が短絡不良を表わす第１閾値電流未満であれば、処理をステップＳ７へ移行し、正常短絡を表わす第２閾値電流超過であれば、処理をステップＳ８へ移行する。また、短絡電流の値が短絡の正常異常の判断がしにくい第１閾値電流から第２閾値電流との間であれば、制御部５８は処理をステップＳ３へ移行する。
ステップＳ３では、レール間の電圧が示される接続部１２、１３の電極端子間の電圧を測定するため、制御部５８は電圧計測回路４１の検出結果を読み込む。 In step S2, the controller 58 determines the value of the measured short circuit current in three stages. As a result of the determination, if the value of the short circuit current is less than the first threshold current indicating a short circuit failure, the control unit 58 proceeds to step S7, and if the second threshold current indicating a normal short circuit is exceeded, the control unit 58 performs the process. The process proceeds to step S8. If the value of the short circuit current is between the first threshold current and the second threshold current where it is difficult to determine whether the short circuit is normal or abnormal, the control unit 58 proceeds to step S3.
In step S <b> 3, the control unit 58 reads the detection result of the voltage measurement circuit 41 in order to measure the voltage between the electrode terminals of the connection units 12 and 13 indicating the voltage between the rails.

ステップＳ４では、制御部５８は測定した電圧が閾値電圧以下か判定する。この閾値電圧は、現ステップＳ４に移行する短絡電流の条件の中で最も小さい短絡電流（第１閾値電流）が流れている場合でも、鉄道の保安装置が短絡を検出できる短絡インピーダンスとなる電圧値に設定されている。制御部５８は、判定の結果、閾値電圧以下であればステップＳ８へ処理を移行し、そうでなければステップＳ５へ処理を移行する。
ステップＳ５では、制御部５８は、ステップＳ１，Ｓ３で計測した短絡電流値と電圧とから、軌道短絡装置１の短絡インピーダンスを計算する。 In step S4, the control unit 58 determines whether the measured voltage is equal to or lower than the threshold voltage. This threshold voltage is a voltage value that provides a short-circuit impedance at which the railway safety device can detect a short-circuit even when the short-circuit current (first threshold current) that is the smallest of the short-circuit current conditions that shift to the current step S4 is flowing. Is set to If the result of determination is that the voltage is equal to or lower than the threshold voltage, the control unit 58 proceeds to step S8, and otherwise proceeds to step S5.
In step S5, the control unit 58 calculates the short-circuit impedance of the track short-circuit device 1 from the short-circuit current value and voltage measured in steps S1 and S3.

ステップＳ６では、制御部５８は計算した短絡インピーダンスが閾値インピーダンスを超過しているか判別する。閾値インピーダンスは、鉄道の保安装置が短絡を検出できる短絡インピーダンスに設定されている。判定の結果、超過であれば、制御部５８は処理をステップＳ７へ移行し、超過していなければ、制御部５８は処理をステップＳ８へ移行する。
ステップＳ７では、制御部５８は、選択信号ＳＥＬをオフにする。一方、ステップＳ８では、制御部５８は、選択信号ＳＥＬをオンにする。 In step S6, the control unit 58 determines whether the calculated short-circuit impedance exceeds the threshold impedance. The threshold impedance is set to a short-circuit impedance at which the railway safety device can detect a short circuit. As a result of the determination, if it exceeds, the control unit 58 proceeds to step S7, and if not exceeded, the control unit 58 proceeds to step S8.
In step S7, the control unit 58 turns off the selection signal SEL. On the other hand, in step S8, the control unit 58 turns on the selection signal SEL.

ステップＳ９では、制御部５８は、短い所定時間を待機して、処理をステップＳ１に戻す。
このような制御処理により、制御部５８は、軌道短絡装置１によるレール間の正常短絡と短絡不良との判別を繰り返し、接続部１２、１３の接続が弱くなって正常短絡から短絡不良に変化した場合でも、この変化を判別することができる。 In step S9, the control unit 58 waits for a short predetermined time and returns the process to step S1.
By such control processing, the control unit 58 repeatedly distinguishes between the normal short circuit between the rails and the short circuit failure by the track short circuit device 1, and the connection between the connection units 12 and 13 is weakened and the normal short circuit is changed to the short circuit failure. Even in this case, this change can be determined.

続いて、軌道短絡装置１の全体の動作について説明する。
図２に示した回路構成および図３の制御処理によれば、接続部１２、１３がレールに正常に接続してレール間が正常に短絡していれば、制御部５８がこれを判別し、選択信号ＳＥＬをオンにする。これにより、左のケーブル部１０の複数の発光素子１０５と、右のケーブル部１１の複数発光素子１０５とが緑色に発光し、且つ、この発光が交互に点滅する。
一方、接続部１２、１３のレールへの接続が弱くなるなどしてレール間の短絡が不良になると、制御部５８がこれを判別し、選択信号ＳＥＬをオフにする。これにより、左のケーブル部１０の複数の発光素子１０５と、右のケーブル部１１の複数発光素子１０５とが黄色に発光し、且つ、この発光が交互に点滅する。 Then, the operation | movement of the whole track short circuit apparatus 1 is demonstrated.
According to the circuit configuration shown in FIG. 2 and the control process of FIG. 3, if the connection parts 12 and 13 are normally connected to the rails and the rails are normally short-circuited, the control part 58 determines this, The selection signal SEL is turned on. Thereby, the plurality of light emitting elements 105 of the left cable unit 10 and the plurality of light emitting elements 105 of the right cable unit 11 emit green light, and the light emission alternately blinks.
On the other hand, if the short circuit between the rails becomes defective due to weak connection of the connection units 12 and 13 to the rail, the control unit 58 determines this and turns off the selection signal SEL. Thereby, the plurality of light emitting elements 105 of the left cable unit 10 and the plurality of light emitting elements 105 of the right cable unit 11 emit yellow light, and the light emission alternately blinks.

以上のように、この実施の形態の軌道短絡装置１によれば、複数の発光素子１０５がケーブル部１０、１１に設けられているので、軌道短絡装置１の発光の視認性が向上する。例えば、発光素子をベース体２の周囲に設けた場合と比較すると、発光領域が広いため高い視認性が得られる。よって、路線内で作業を行っている保守員は、離れた箇所からでも、軌道短絡装置１の発光を容易に認識できる。また、制御部５８は、レール間の短絡状態が正常であるときと不良であるときとで、発光素子の発光態様を緑色発光と黄色発光とに切り替える。よって、保守員が路線内で作業を行っている間に軌道の短絡状態が不良となった場合でも、ケーブル部１０、１１の発光素子１０５が黄色発光に変わることで、保守員に短絡不良になったことを認識させやすい。よって、保守員により軌道短絡装置１の設置がやり直されるなど、速やかな軌道の短絡状態の修正を図ることができる。   As described above, according to the track short circuit device 1 of this embodiment, the plurality of light emitting elements 105 are provided in the cable portions 10 and 11, so that the light emission visibility of the track short circuit device 1 is improved. For example, as compared with the case where the light emitting element is provided around the base body 2, high visibility can be obtained because the light emitting region is wide. Therefore, the maintenance worker who is working on the route can easily recognize the light emission of the track short-circuit device 1 even from a remote location. Moreover, the control part 58 switches the light emission mode of a light emitting element to green light emission and yellow light emission, when the short circuit state between rails is normal, and when it is unsatisfactory. Therefore, even when the maintenance staff is working on the route and the short circuit state of the track becomes defective, the light emitting element 105 of the cable portions 10 and 11 changes to yellow light emission, which causes the maintenance staff to short circuit. It is easy to recognize that it has become. Therefore, it is possible to promptly correct the short circuit state of the track, such as re-installation of the track short circuit device 1 by the maintenance staff.

また、この実施の形態の軌道短絡装置１によれば、発光素子１０５はケーブル部１０、１１に設けられているので、発光の視認性を向上できるとともに、発光素子１０５が破損しにくくなるという効果も得られる。仮に、発光の視認性を向上するため、発光素子１０５をベース体２の周囲に設けると、装置の移動または収納の際などにベース体と他のものとの間に発光素子を挟んで、発光素子を破損しやすい。一方、鉄道路線の保守または工事の際、ケーブルを踏みつけたりケーブルの上に物を置いたりしないことが共通認識となっている。このため、発光素子１０５はケーブル部１０、１１に設けたほうが破損しにくい。
また、本実施の形態の軌道短絡装置１によれば、軌道短絡装置１を電源投入した後、ケーブル部１０、１１の発光素子１０５は常に発光しているので、路線での作業終了時に、軌道短絡装置１の回収忘れを防止できるという効果も得られる。 Further, according to the track short circuit device 1 of this embodiment, since the light emitting element 105 is provided in the cable portions 10 and 11, the light emission visibility can be improved, and the light emitting element 105 is hardly damaged. Can also be obtained. If the light-emitting element 105 is provided around the base body 2 in order to improve the visibility of light emission, the light-emitting element is sandwiched between the base body and another object when the apparatus is moved or stored. The device is easily damaged. On the other hand, it is a common recognition that the railway is not stepped on or placed on the cable during maintenance or construction of the railway line. For this reason, the light emitting element 105 is less likely to be damaged when provided in the cable portions 10 and 11.
Further, according to the track short circuit device 1 of the present embodiment, since the light emitting element 105 of the cable portions 10 and 11 always emits light after turning on the power of the track short circuit device 1, the track is short when the work on the route ends. An effect of preventing forgetting to collect the short-circuit device 1 can also be obtained.

以上、本発明の各実施の形態について説明したが、本発明は上記の実施の形態に限られない。例えば、上記実施の形態では、短絡状態に基づく発光態様の切り替えとして、発光色を切り替える構成を一例として説明したが、例えば、発光パターンを切り替える構成を採用してもよい。例えば、正常短絡の場合に、緑色の発光を点滅なし、或いは、長い点滅周期で行い、短絡不良が検出された場合に、黄色の発光を早い点滅で行ってもよい。また、左右のケーブル部１０、１１の発光素子１０５で交互に点滅を行う構成も、正常短絡のときに行わずに、短絡不良のときに行うようにしてもよい。また、電池寿命を延ばすために、正常短絡のまま一定時間経過したら、緑色の発光を小さいデューティ比で行わせるように発光態様を変えてもよい。その他、実施の形態で示した細部は発明の趣旨を逸脱しない範囲で適宜変更可能である。   As mentioned above, although each embodiment of this invention was described, this invention is not limited to said embodiment. For example, in the above-described embodiment, the configuration in which the emission color is switched is described as an example of switching the light emission mode based on the short circuit state. However, for example, a configuration in which the light emission pattern is switched may be employed. For example, in the case of a normal short circuit, green light emission may be performed without blinking or with a long blinking cycle, and when a short circuit failure is detected, yellow light emission may be performed with rapid blinking. Further, the configuration in which the light emitting elements 105 of the left and right cable portions 10 and 11 are alternately blinked may be performed when a short circuit is defective instead of performing a normal short circuit. Further, in order to extend the battery life, the light emission mode may be changed so that green light emission is performed with a small duty ratio after a certain period of time with a normal short circuit. In addition, the details shown in the embodiments can be changed as appropriate without departing from the spirit of the invention.

１ 軌道短絡装置
２ ベース体
１０、１１ ケーブル部
１２、１３ 接続部
１７、１８ 保持ベース
４１ 電圧計測回路
４２ 電流計測回路
５８ 制御部
Ｒ１〜Ｒ８ スイッチ
ＳＥＬ 選択信号
１０１ 透明被覆
１０２ 導線コード
１０３、１０３Ｌ、１０３Ｒ 発光素子テープ
１０５ 発光素子
Ｅ３ 黄色発光の素子
Ｅ４ 緑色発光の素子 DESCRIPTION OF SYMBOLS 1 Orbital short circuit apparatus 2 Base body 10,11 Cable part 12,13 Connection part 17,18 Holding base 41 Voltage measurement circuit 42 Current measurement circuit 58 Control part R1-R8 Switch SEL Selection signal 101 Transparent coating 102 Conductor cord 103, 103L, 103R Light emitting element tape 105 Light emitting element E3 Yellow light emitting element E4 Green light emitting element

Claims (3)

鉄道の軌道を構成する一対のレール間を短絡させる軌道短絡装置であって、
前記レール間の短絡電流を流すケーブル部と、
前記レール間の短絡状態を検出する検出部と、
前記ケーブル部に前記ケーブル部の長手方向に連なるように設けられた複数の発光素子と、
前記複数の発光素子の発光を制御する制御部と、
を備え、
前記制御部は、前記検出部の検出結果に基づき前記発光素子の発光態様を切り替え、且つ、少なくとも前記検出部が短絡不良を検出している場合に前記発光素子を発光させることを特徴とする軌道短絡装置。 A track short-circuit device for short-circuiting between a pair of rails constituting a railroad track,
A cable portion for passing a short-circuit current between the rails;
A detection unit for detecting a short circuit state between the rails;
A plurality of light emitting elements provided in the cable portion so as to be continuous in the longitudinal direction of the cable portion;
A control unit for controlling light emission of the plurality of light emitting elements;
With
The control unit switches a light emission mode of the light emitting element based on a detection result of the detection unit, and causes the light emitting element to emit light at least when the detection unit detects a short circuit failure. Short circuit device. 前記複数の発光素子は、前記ケーブル部の第１区間に配置された第１発光素子群と、前記第１区間と異なる前記ケーブル部の第２区間に配置された第２発光素子群とを含み、
前記制御部は、少なくとも前記検出部が短絡不良を検出している場合に、前記第１発光素子群と前記第２発光素子群とを交互に点滅させることを特徴とする請求項１記載の軌道短絡装置。 The plurality of light emitting elements include a first light emitting element group disposed in a first section of the cable portion, and a second light emitting element group disposed in a second section of the cable section different from the first section. ,
2. The track according to claim 1, wherein the control unit causes the first light emitting element group and the second light emitting element group to blink alternately when at least the detection unit detects a short circuit failure. Short circuit device. 前記一対のレールにそれぞれ固定されて電気的に接続する一対の接続部と、
前記制御部を収容するベース体と、をさらに備え、
前記ベース体には、前記一対の接続部を磁力により保持可能な一対の保持ベースが設けられていることを特徴とする請求項１記載の軌道短絡装置。
A pair of connecting portions fixed to and electrically connected to the pair of rails,
A base body that houses the control unit;
The track short-circuit device according to claim 1, wherein the base body is provided with a pair of holding bases capable of holding the pair of connection portions by magnetic force.
JP2015130577A 2015-06-30 2015-06-30 Orbital short-circuit device Active JP6573492B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2015130577A JP6573492B2 (en) 2015-06-30 2015-06-30 Orbital short-circuit device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2015130577A JP6573492B2 (en) 2015-06-30 2015-06-30 Orbital short-circuit device

Publications (2)

Publication Number Publication Date
JP2017013581A true JP2017013581A (en) 2017-01-19
JP6573492B2 JP6573492B2 (en) 2019-09-11

Family

ID=57829655

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2015130577A Active JP6573492B2 (en) 2015-06-30 2015-06-30 Orbital short-circuit device

Country Status (1)

Country Link
JP (1) JP6573492B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019006286A (en) * 2017-06-27 2019-01-17 東日本旅客鉄道株式会社 Relay output measurement device of electronic train detector and electronic train detector control length measurement device

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4530170Y1 (en) * 1966-07-11 1970-11-19
JPS5777078U (en) * 1980-10-31 1982-05-12
JPH01311400A (en) * 1988-06-09 1989-12-15 Kyocera Corp Method for lighting light emitting symbol body
JPH03273970A (en) * 1990-03-23 1991-12-05 Daido Signal Co Ltd Rail short-circuit judging means
JPH0826111A (en) * 1994-07-14 1996-01-30 Railway Technical Res Inst Short-circuiting device for track circuit
JP2011195072A (en) * 2010-03-23 2011-10-06 Nippon Densetsu Kogyo Co Ltd Track short-circuit instrument
JP2016199059A (en) * 2015-04-07 2016-12-01 鹿島建設株式会社 Track short-circuit instrument

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4530170Y1 (en) * 1966-07-11 1970-11-19
JPS5777078U (en) * 1980-10-31 1982-05-12
JPH01311400A (en) * 1988-06-09 1989-12-15 Kyocera Corp Method for lighting light emitting symbol body
JPH03273970A (en) * 1990-03-23 1991-12-05 Daido Signal Co Ltd Rail short-circuit judging means
JPH0826111A (en) * 1994-07-14 1996-01-30 Railway Technical Res Inst Short-circuiting device for track circuit
JP2011195072A (en) * 2010-03-23 2011-10-06 Nippon Densetsu Kogyo Co Ltd Track short-circuit instrument
JP2016199059A (en) * 2015-04-07 2016-12-01 鹿島建設株式会社 Track short-circuit instrument

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019006286A (en) * 2017-06-27 2019-01-17 東日本旅客鉄道株式会社 Relay output measurement device of electronic train detector and electronic train detector control length measurement device

Also Published As

Publication number Publication date
JP6573492B2 (en) 2019-09-11

Similar Documents

Publication Publication Date Title
US8990030B2 (en) Submersion detection circuit and submersion detection apparatus using the same
ES2376548T3 (en) DETECTION OF FAULTS FOR AN ELECTRICAL SUPPLY RING.
ES2762980T3 (en) Device that has supervised device cooling
ES2717952T3 (en) End of line capacitor to measure the impedance of wiring of emergency notification circuits
ES1056708U (en) Automatic detecting and switching vehicle charger
TWI583258B (en) Fault detection apparatus and fault detection method
JP2015020460A (en) Control device of on-vehicle illumination lamp
JP6573492B2 (en) Orbital short-circuit device
US9725000B2 (en) System and method for monitoring remote battery charging
JP6804822B2 (en) Traffic signal system
ES2230226T3 (en) DEVICE FOR THE SUPERVISION OF A NETWORK ON BOARD OF A VEHICLE.
JP2009187822A (en) Display device
JP2014104818A (en) Controller of turn indicator light, and turn indicator
JP2019111998A (en) Disconnection detector for light emitter
JP2011162008A (en) Led lighting device for head lamp
CN101400202A (en) Apparatus for dynamically and statically monitoring fault of multi-path car lamp
JP2010206980A (en) Alarm display method
US20140103932A1 (en) System and method for light intensity monitoring
JP4399313B2 (en) Voltage detector
JP2013217809A (en) Handy type wiring checker and method for checking wiring conduction
JP3166968U (en) Circuit meter alarm and circuit meter with alarm
JP5276691B2 (en) Static eliminator
JP2002247778A (en) Charger
EP1688333A1 (en) Device for monitoring wear of friction elements for a vehicle braking system
CN220795443U (en) Non-contact alternating voltage detection device

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20180405

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20181213

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20190108

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20190222

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20190730

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20190813

R150 Certificate of patent or registration of utility model

Ref document number: 6573492

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250