JP2626875B2 - Train detector for three-track track - Google Patents
Train detector for three-track trackInfo
- Publication number
- JP2626875B2 JP2626875B2 JP6217594A JP6217594A JP2626875B2 JP 2626875 B2 JP2626875 B2 JP 2626875B2 JP 6217594 A JP6217594 A JP 6217594A JP 6217594 A JP6217594 A JP 6217594A JP 2626875 B2 JP2626875 B2 JP 2626875B2
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- JP
- Japan
- Prior art keywords
- signal
- train
- gauge
- rail
- narrow
- 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.)
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Description
【0001】[0001]
【産業上の利用分野】この発明は三線式レ−ルで列車を
検出する三線軌道用列車検知装置、特に列車検知装置の
構造の単純化に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a train detecting device for a three-track track for detecting a train on a three-wire rail, and more particularly to a simplified structure of the train detecting device.
【0002】[0002]
【従来の技術】従来線列車と新幹線列車を共通の線区で
走行させる手段として、基本レ−ルと標準軌のレ−ルと
狭軌のレ−ルとの三本のレ−ルを使い、従来線列車は基
本レ−ルと狭軌のレ−ルを使い走行し、新幹線列車は基
本レ−ルと標準軌のレ−ルを使い走行する三線式レ−ル
が用いられている。2. Description of the Related Art As means for running a conventional line train and a Shinkansen train on a common line section, three rails of a basic rail, a standard gauge rail, and a narrow gauge rail are used. Conventional trains use a basic rail and narrow gauge rails, and Shinkansen trains use a three-rail rail that runs using basic rails and standard gauge rails.
【0003】三線式レ−ルを用いる場合の列車の検知は
三本のレ−ルの間が接触しないことを平常状態として、
いずれかのレ−ル間が短絡しても列車有として停止信号
を表示する三線軌道用列車検知装置を構成することによ
って行われている。[0003] In the case of using a three-wire type rail, a train is detected by assuming that there is no contact between the three rails.
This is performed by configuring a three-track train detection device that displays a stop signal as a train even if any of the rails is short-circuited.
【0004】三線軌道用列車検知装置では基本レ−ルと
標準軌のレ−ルとの間、又は基本レ−ルと狭軌のレ−ル
との間の列車による短絡を検知する必要があるから、従
来から使用されている列車検知装置を二台使用した方式
が採用されている。[0004] The three-track railroad train detector must detect a short circuit caused by a train between the basic rail and the standard gauge rail or between the basic rail and the narrow gauge rail. In addition, a method using two conventionally used train detection devices is adopted.
【0005】ところが、従来使用されている列車検知装
置を二台使用する方式では、標準軌のレ−ルと狭軌のレ
−ルとの間が二個所で短絡していると、例えば、図6の
構成図に示すように、軌道回路の標準軌のレ−ル19と
基本レ−ル17との間に列車25が存在しても、二個所
の短絡個所26,27から狭軌のレ−ル18に標準軌の
列車検知用の電流が回り込み、列車検出ができなくなっ
てしまう。これに対処するため、例えば図7の構成図に
示すように送信部6が発生する列車検知用の信号を時分
割装置28で標準軌のレ−ル19用の信号と狭軌のレ−
ル18用の信号とに時分割し、狭軌側受信部9(以後、
「N受信部」という。)と標準軌側受信部11(以後、
「S受信部」という。)が標準軌のレ−ル19の列車検
知用の信号と狭軌のレ−ル18の列車検知用の信号との
両方を受信しているときには標準軌のレ−ル19と狭軌
のレ−ル18との間の短絡有りと判断している。However, in the conventional system using two train detectors, if the standard gauge rail and the narrow gauge rail are short-circuited at two places, for example, as shown in FIG. As shown in the block diagram, even if the train 25 exists between the standard rail 17 and the basic rail 17 of the track circuit, the narrow gauge rails extend from the two short-circuit points 26 and 27. The current for train detection of the standard gauge wraps around 18, and the train cannot be detected. In order to cope with this, for example, as shown in the configuration diagram of FIG. 7, the signal for train detection generated by the transmission unit 6 is divided by the time division device 28 into the signal for the standard gauge rail 19 and the narrow gauge rail.
Time-division into the signal for the
It is called "N receiving unit". ) And the standard gauge side receiving unit 11 (hereinafter, referred to as
It is called "S receiving section". ) Receives both the standard gauge rail 19 train detection signal and the narrow gauge rail 18 train detection signal, the standard gauge rail 19 and the narrow gauge rail. 18 is determined to be short-circuited.
【0006】[0006]
【発明が解決しようとする課題】上記のように三線軌道
用列車検知装置で列車を正確に検知するためには、標準
軌に送信しているか狭軌に送信しているかを受信側に知
らせるための伝送回線28が必要になる。ところが、通
常軌道回路の区間は1km程度有るので、この伝送にケ−
ブルを敷設することは容易でなく、費用が掛かるととも
に保守及び点検が容易でなかった。As described above, in order to accurately detect a train with the train detection device for a three-track track, it is necessary to notify a receiving side whether the signal is being transmitted to a standard gauge or a narrow gauge. A transmission line 28 is required. However, since the track circuit section usually has a length of about 1 km, a cable
It was not easy to lay the bull, it was expensive, and maintenance and inspection were not easy.
【0007】この発明はかかる短所を解消するためにな
されたものであり、列車の有無及び標準軌のレ−ルと狭
軌のレ−ルとの間の短絡の双方を簡単な構成で確実に検
知することができる三線軌道用列車検知装置を得ること
を目的とするものである。SUMMARY OF THE INVENTION The present invention has been made in order to solve such disadvantages, and it is possible to reliably detect both the presence or absence of a train and a short circuit between a standard gauge rail and a narrow gauge rail with a simple configuration. It is an object of the present invention to obtain a train detection device for a three-track track that can perform the operation.
【0008】[0008]
【課題を解決するための手段】この発明に係る三線軌道
用列車検知装置は、列車検知信号の送信側装置として送
信器を備え、列車検知信号の受信側装置として狭軌信号
受信器と標準軌信号受信器と異常検出器を備え、送信器
は狭軌のレ−ルと標準軌のレ−ルに交互に列車検知信号
を出力するものであり、分周部と送信部と送信側カウン
タと信号切替部とを有し、分周部は商用電源の周波数を
整数分の一にした一定周波数の信号を出力し、送信部は
分周部で出力した信号を基に列車検知信号を発信し、送
信側カウンタは商用電源の波数を計数し、予め定められ
た一定波数毎に切替信号を出力し、信号切替部は送信側
カウンタから切替信号を受けるたびに送信部が発信する
列車検知信号の送り先を狭軌のレ−ルと標準軌のレ−ル
の間で切替え、狭軌信号受信器は狭軌のレ−ル上の信号
を検知し狭軌上の列車を検知するものであり、第一の受
信部と第一の列車検知部を有し、第一の受信部は狭軌の
レ−ル上の信号を受信し、第一の列車検知部は第一の受
信部が受信した信号から列車の有無を検知し、標準軌信
号受信器は標準軌のレ−ル上の信号を検知し標準軌上の
列車を検知するものであり、第二の受信部と第二の列車
検知部を有し、第二の受信部は標準軌のレ−ル上の信号
を受信し、第二の列車検知部は第二の受信部が受信した
信号から列車の有無を検知し、異常検出器は狭軌信号受
信器及び標準軌信号受信器が受信した信号から狭軌及び
標準軌の軌道上の異常を検出するものであり、受信側カ
ウンタと論理回路部と異常検知部を有し、受信側カウン
タは商用電源の波数を送信側カウンタが計数したと同じ
数だけ計数しタイミング信号を出力し、論理回路部は受
信側カウンタのタイミング信号を基に狭軌信号受信器と
標準軌信号受信器とにおける信号の有無を検出し、狭軌
信号受信器と標準軌信号受信器の信号の有無の排他論理
和を検出し、異常検知部は論理回路部が検出した排他論
理和から軌道上の異常の有無を検出する。A train detection apparatus for a three-track track according to the present invention includes a transmitter as a train detection signal transmitting device, and a narrow gauge signal receiver and a standard gauge signal as a train detection signal receiving device. It has a receiver and an anomaly detector, and the transmitter alternately outputs train detection signals on a narrow gauge rail and a standard gauge rail. The frequency divider, transmitter, transmitter counter, and signal switcher The frequency divider outputs a signal of a constant frequency obtained by reducing the frequency of the commercial power supply to a fraction of an integer, and the transmitter transmits a train detection signal based on the signal output by the frequency divider and transmits the signal. The side counter counts the number of waves of the commercial power supply, and outputs a switching signal at every predetermined constant wave number, and the signal switching unit determines the destination of the train detection signal transmitted by the transmitting unit every time the switching signal is received from the transmitting side counter. Switch between narrow gauge rails and standard gauge rails The signal receiver detects a signal on a narrow gauge rail and detects a train on the narrow gauge, and has a first receiving section and a first train detecting section, and the first receiving section has a narrow gauge. The first train detector detects the presence or absence of a train from the signal received by the first receiver, and the standard gauge signal receiver detects the signal on the standard gauge rail. Detecting a train on a standard gauge, having a second receiving section and a second train detecting section, wherein the second receiving section receives a signal on a standard gauge rail, and The second train detector detects the presence or absence of a train from the signal received by the second receiver, and the abnormality detector detects the presence or absence of the train on the narrow gauge and standard gauge tracks from the signals received by the narrow gauge signal receiver and the standard gauge signal receiver. It has a receiving counter, a logic circuit unit, and an abnormality detecting unit. The receiving counter counts the wave number of the commercial power supply on the transmitting side. Counts the same number as that counted, and outputs a timing signal.The logic circuit detects the presence or absence of a signal in the narrow gauge signal receiver and the standard gauge signal receiver based on the timing signal of the receiving counter, and receives the narrow gauge signal. The exclusive OR of the presence / absence of the signal from the detector and the standard gauge signal receiver is detected, and the abnormality detection unit detects the presence / absence of an abnormality on the orbit from the exclusive OR detected by the logic circuit unit.
【0009】[0009]
【作用】この発明においては、分周部は商用電源の周波
数を整数分の一にした一定周波数の信号を出力する。送
信部は分周部で出力した信号を基に列車検知信号を発信
する。送信側カウンタは商用電源の波数を計数し、予め
定められた一定波数毎に切替信号を出力する。信号切替
部は送信側カウンタから切替信号を受けるたびに送信部
が発信する列車検知信号の送り先を狭軌のレ−ルと標準
軌のレ−ルの間で切替え、送信器は狭軌のレ−ルと標準
軌のレ−ルに商用電源を基にした間隔で交互に列車検知
信号を送る。According to the present invention, the frequency divider outputs a signal of a constant frequency obtained by reducing the frequency of the commercial power supply to a fraction of an integer. The transmitting unit transmits a train detection signal based on the signal output from the frequency dividing unit. The transmission-side counter counts the number of waves of the commercial power supply and outputs a switching signal for each predetermined predetermined number of waves. The signal switching unit switches the destination of the train detection signal transmitted by the transmission unit between the narrow gauge rail and the standard gauge rail every time the switching unit receives the switching signal from the transmitting counter, and the transmitter is a narrow gauge rail. And a train detection signal is sent alternately to the rails of the standard gauge at intervals based on the commercial power supply.
【0010】狭軌信号受信器は狭軌のレ−ル上の信号を
検知し狭軌上の列車を検知するものであり、第一の受信
部と第一の列車検知部を有する。第一の受信部は狭軌の
レ−ル上の信号を受信する。第一の列車検知部は第一の
受信部が受信した信号から列車の有無を検知する。標準
軌信号受信器は標準軌のレ−ル上の信号を検知し標準軌
上の列車を検知するものであり、第二の受信部と第二の
列車検知部を有する。第二の受信部は標準軌のレ−ル上
の信号を受信する。第二の列車検知部は第二の受信部が
受信した信号から列車の有無を検知し、狭軌軌道上の列
車と標準軌軌道上に列車をそれぞれ別々に検出する。The narrow gauge signal receiver detects a signal on a narrow gauge rail to detect a train on a narrow gauge, and has a first receiving section and a first train detecting section. The first receiver receives signals on the narrow gauge rail. The first train detector detects the presence or absence of a train from the signal received by the first receiver. The standard gauge signal receiver detects a signal on the standard gauge rail and detects a train on the standard gauge, and has a second receiving section and a second train detecting section. The second receiver receives the signal on the standard gauge rail. The second train detector detects the presence or absence of a train from the signal received by the second receiver, and separately detects a train on a narrow gauge track and a train on a standard gauge track.
【0011】異常検出器は狭軌信号受信器及び標準軌信
号受信器が受信した信号から狭軌及び標準軌の軌道上の
異常を検出するものであり、受信側カウンタと論理回路
部と異常検知部を有する。受信側カウンタは商用電源の
波数を送信側カウンタが計数したと同じ数だけ計数しタ
イミング信号を出力する。論理回路部は受信側カウンタ
のタイミング信号を基に狭軌信号受信器と標準軌信号受
信器とにおける信号の有無を検出し、狭軌信号受信器と
標準軌信号受信器の信号の有無の排他論理和を検出す
る。異常検知部は論理回路部が検出した排他論理和から
軌道上の異常の有無を検出し、送信器の信号と同期して
列車の異常の検知を行う。The abnormality detector detects an abnormality in the orbit of the narrow gauge and the standard gauge from the signals received by the narrow gauge signal receiver and the standard gauge signal receiver, and includes a receiving counter, a logic circuit unit, and an abnormality detecting unit. Have. The receiving side counter counts the number of waves of the commercial power supply by the same number as that counted by the transmitting side counter, and outputs a timing signal. The logic circuit detects the presence or absence of a signal in the narrow gauge signal receiver and the standard gauge signal receiver based on the timing signal of the receiving counter, and performs an exclusive OR operation on the presence or absence of the signal in the narrow gauge signal receiver and the standard gauge signal receiver. Is detected. The abnormality detection unit detects the presence or absence of an abnormality on the track from the exclusive OR detected by the logic circuit unit, and detects abnormality of the train in synchronization with the signal of the transmitter.
【0012】[0012]
【実施例】図1はこの発明の一実施例を示す三線軌道用
列車検知装置の構成図である。図に示すように、三線軌
道用列車検知装置は例えば在来線列車と新幹線列車を共
通の線区で走行させる場合に列車を検出するものであ
り、基本レ−ル17を共通レ−ルとして狭軌のレ−ル1
8と標準軌のレ−ル19と2台のインピ−ダンスボンド
21,22とで軌道回路を形成する。FIG. 1 is a block diagram of a train detection device for a three-track track showing one embodiment of the present invention. As shown in the figure, the three-track train detection device detects a train when, for example, a conventional line train and a Shinkansen train run in a common line section, and uses the basic rail 17 as a common rail. Narrow gauge rail 1
A track circuit is formed by the rails 8 and the rail 19 of the standard gauge and the two impedance bonds 21 and 22.
【0013】軌道回路では軌道回路の境界点22の一方
のインピ−ダンスボンド20の一次巻線の両端はそれぞ
れ共通レ−ル17と狭軌側レ−ル18に接続する。他方
のインピ−ダンスボンド21の一次巻線の両端はそれぞ
れ共通レ−ル17と標準軌側レ−ル19に接続する。両
インピ−ダンスボンド20,21の一次巻線の中性点間
は互いに接続している。そして、一方のインピ−ダンス
ボンド20の共通レ−ル17から中性点に流れる電流と
狭軌側レ−ル18から中性点に流れる電流がほぼ等しく
なり、他方のインピ−ダンスボンド21の共通レ−ル1
7から中性点に流れる電流と標準軌側レ−ル19から中
性点に流れる電流がほぼ等しくなるようにして、帰線電
流の不平衡を抑制している。In the track circuit, both ends of the primary winding of one of the impedance bonds 20 at the boundary point 22 of the track circuit are connected to the common rail 17 and the narrow rail 18, respectively. Both ends of the primary winding of the other impedance bond 21 are connected to the common rail 17 and the standard rail 19, respectively. The neutral points of the primary windings of both impedance bonds 20 and 21 are connected to each other. Then, the current flowing from the common rail 17 of one impedance bond 20 to the neutral point is substantially equal to the current flowing from the narrow gauge rail 18 to the neutral point, and the current flowing to the neutral point of the other impedance bond 21 is substantially equal. Rail 1
The current flowing from 7 to the neutral point and the current flowing from the standard rail 19 to the neutral point are substantially equal to suppress the unbalance of the retrace current.
【0014】三線軌道用列車検知装置は列車検知信号の
送信側に送信器1を有し、列車検知信号の受信側に狭軌
信号受信器2、標準軌信号受信器3及び異常検知器4を
有する。The train detection device for a three-track track has a transmitter 1 on the transmitting side of the train detection signal, and has a narrow gauge signal receiver 2, a standard gauge signal receiver 3, and an abnormality detector 4 on the receiving side of the train detection signal. .
【0015】送信器1は狭軌のレ−ル18と標準軌のレ
−ル19に交互に列車検知信号を出力するものであり、
分周部5、送信部6、送信側カウンタ7及び信号切替部
8を備える。分周部3は商用電源16の周波数を分周し
て一定周波数の信号を出力する。送信部6は分周部5で
出力した信号を基に列車検知信号を発信する。送信側カ
ウンタ7は商用電源16の波数を計数する。送信側カウ
ンタ7は計数した波の合計時間が列車検知信号の周期の
整数倍となる一定数の波を計数するたびに信号切替部8
に向け切替信号を出力する。信号切替部8は送信側カウ
ンタ7から切替信号を受けるたびに送信部6が発信する
列車検知信号の送り先を狭軌のレ−ル18と標準軌のレ
−ル19の間で切替え、狭軌のレ−ル18と標準軌のレ
−ル19に交互に列車検知信号を送る。The transmitter 1 alternately outputs a train detection signal to a narrow gauge rail 18 and a standard gauge rail 19,
It includes a frequency dividing section 5, a transmitting section 6, a transmitting side counter 7, and a signal switching section 8. The frequency divider 3 divides the frequency of the commercial power supply 16 and outputs a signal of a constant frequency. The transmitting unit 6 transmits a train detection signal based on the signal output from the frequency dividing unit 5. The transmission counter 7 counts the wave number of the commercial power supply 16. Each time the transmitting counter 7 counts a certain number of waves in which the total time of the counted waves is an integral multiple of the period of the train detection signal, the signal switching unit 8
A switching signal is output toward. The signal switching unit 8 switches the destination of the train detection signal transmitted by the transmission unit 6 between the narrow gauge rail 18 and the standard gauge rail 19 each time the switching signal is received from the transmitting side counter 7, and the narrow gauge rail. -A train detection signal is sent alternately to the rail 18 and the rail 19 of the standard gauge.
【0016】ここで、三線軌道用列車検知装置において
は、電車の力行電流と列車検知信号との分離ができない
ので、例えば商用電源16が「50Hz」であると、分周部
5は列車検知信号の周波数を商用電源16の周波数と異
なる周波数とするため、例えば「1/2」分周波の「25H
z」の信号を出力する。送信部6は分周部5が出力した
信号を基に信号切替部8を介して列車検知信号を送信す
る。送信側カウンタ7は商用電源16の交流電圧の波数
を計数し、信号切替部8に切替信号を出力する。例えば
列車検知信号「5」波分毎に切替信号を出力するとする
と、列車検知信号「5」波分の長さは交流電圧「10」波
分の長さとなるので、交流電圧の波数を「10」波計数す
るたびに、信号切替部8に切替信号を出力する。信号切
替部8は送信側カウンタ7から切替信号を受けるたび
に、列車検知信号の送信先を狭軌のレ−ル18と標準軌
のレ−ル19の間で切替え、図2の波形図に示すように
狭軌のレ−ル18と標準軌のレ−ル19に列車検知信号
を交互に「5」波づつ出力する。Here, in the three-track train detection device, the powering current of the train cannot be separated from the train detection signal. For example, if the commercial power supply 16 is "50 Hz", the frequency dividing unit 5 outputs the train detection signal. Is set to a frequency different from the frequency of the commercial power supply 16, for example, "25H"
z ”signal. The transmitting unit 6 transmits a train detection signal via the signal switching unit 8 based on the signal output from the frequency dividing unit 5. The transmission counter 7 counts the number of waves of the AC voltage of the commercial power supply 16 and outputs a switching signal to the signal switching unit 8. For example, if a switching signal is output for every 5 waves of the train detection signal, the length of the 5 waves of the train detection signal is the length of the 10 waves of the AC voltage. Each time the wave count is performed, a switching signal is output to the signal switching unit 8. The signal switching section 8 switches the destination of the train detection signal between the narrow gauge rail 18 and the standard gauge rail 19 every time a switching signal is received from the transmission side counter 7, as shown in the waveform diagram of FIG. Thus, the train detection signal is alternately output to the narrow gauge rail 18 and the standard gauge rail 19 every "5" waves.
【0017】狭軌信号受信器2は狭軌上の列車を検知す
るものであり、第一受信部9(以後、「N受信部」とい
う。)と第一列車検知部10(以後、「Nゲ−ジ列車検
知部」という。)を有する。標準軌信号受信器3は標準
軌上の列車を検知するものであり、第二受信部11(以
後、「S受信部」という。)と第二列車検知部12(以
後、「Sゲ−ジ列車検知部」という。)を有する。N受
信部9及びS受信部11はそれぞれ標準軌のレ−ル19
及び狭軌のレ−ル18の信号を受信する。Nゲ−ジ列車
検知部10及びSゲ−ジ列車検知部12はそれぞれN受
信部9及びS受信部11が受信した信号から標準軌道上
の列車及び狭軌道上の列車の有無をそれぞれ独立して検
出する。The narrow gauge signal receiver 2 detects a train on a narrow gauge, and includes a first receiving section 9 (hereinafter referred to as an "N receiving section") and a first train detecting section 10 (hereinafter referred to as an "N gate"). This is referred to as a “train detection unit”). The standard gauge signal receiver 3 detects a train on a standard gauge, and includes a second receiving unit 11 (hereinafter, referred to as an "S receiving unit") and a second train detecting unit 12 (hereinafter, an "S gauge"). Train detection unit ”). The N receiving section 9 and the S receiving section 11 are each a standard gauge rail 19.
And the signal of the narrow gauge rail 18 is received. The N-gauge train detecting unit 10 and the S-gauge train detecting unit 12 respectively determine whether there is a train on a standard track and a train on a narrow track from signals received by the N receiving unit 9 and the S receiving unit 11, respectively. To detect.
【0018】三線軌道用列車検知装置の狭軌信号受信器
2及び標準軌信号受信器3においては、Nゲ−ジ列車検
知部10はN受信部9が受信した信号を基に周期的な信
号を受信したときは列車無しと判断して、周期的な信号
を受信できなかったときは列車ありとして、列車の有無
を検知する。Sゲ−ジ列車検知部12は同様にS受信部
11が受信した信号を基に標準軌の列車の有無を検知す
る。例えば、狭軌のレ−ル18と標準軌のレ−ル19と
の間に短絡が無く、標準軌上に列車が有る場合は、列車
の車軸を通して標準軌のレ−ル17上の列車検知信号が
基本レ−ル15に伝わるため、図3の波形図に示すよう
にS受信部11のみが周期的に列車検知信号を受信し、
N受信部9では列車検知信号が受信されない。In the narrow-gauge signal receiver 2 and the standard-gauge signal receiver 3 of the three-track track detecting device, the N-gauge train detecting unit 10 generates a periodic signal based on the signal received by the N receiving unit 9. When a signal is received, it is determined that there is no train. When a periodic signal cannot be received, it is determined that there is a train, and the presence or absence of a train is detected. The S-gauge train detector 12 similarly detects the presence or absence of a standard gauge train based on the signal received by the S receiver 11. For example, if there is no short circuit between the narrow gauge rail 18 and the standard gauge rail 19 and there is a train on the standard gauge, the train detection signal on the standard gauge rail 17 passes through the axle of the train. Is transmitted to the basic rail 15, only the S receiver 11 periodically receives the train detection signal as shown in the waveform diagram of FIG.
The N receiving unit 9 does not receive the train detection signal.
【0019】異常検知器4は狭軌信号受信器2及び標準
軌信号受信器3が受信した信号から狭軌及び標準軌の軌
道上の異常を検出するものであり、受信側カウンタ1
3、論理回路部14及び異常検知部15を有する。受信
側カウンタ13は商用電源16の波数を送信側カウンタ
7が計数したと同じ数だけ計数し、タイミング信号を出
力する。この場合、送信側カウンタ5では波を「10」個
計数するたびにタイミング信号を出力しているので、受
信側カウンタも商用電源16の波を「10」個計数するた
びに、論理回路部14にタイミング信号を送る。ここ
で、商用電源16は3相交流であるから位相が異なって
も送信器1及び異常検知器4における周波数は同一であ
り、送信側カウンタ7の切替信号及び受信側カウンタ1
3の信号を用いて同期を取ることができる。An abnormality detector 4 detects an abnormality in the orbits of the narrow gauge and the standard gauge from the signals received by the narrow gauge signal receiver 2 and the standard gauge signal receiver 3.
3. It has a logic circuit section 14 and an abnormality detection section 15. The receiving counter 13 counts the number of waves of the commercial power supply 16 by the same number as that counted by the transmitting counter 7, and outputs a timing signal. In this case, the transmission-side counter 5 outputs a timing signal each time it counts "10" waves, so that the reception-side counter also counts "10" waves of the commercial power supply 16 every time it counts "10" waves. To the timing signal. Here, since the commercial power supply 16 is a three-phase alternating current, even if the phases are different, the frequencies in the transmitter 1 and the abnormality detector 4 are the same, and the switching signal of the transmission side counter 7 and the reception side counter 1
Synchronization can be performed using the signal of No. 3.
【0020】論理回路部14は受信側カウンタ13のタ
イミング信号を基に狭軌のレ−ル18上及び標準軌のレ
−ル19上の列車検知信号と同期を取り、N受信部9と
S受信部11とにおける信号の有無を検出する。ここ
で、信号の有無をそれぞれ「1」「0」で表すと、例えば
図4の説明図に示すように、標準軌及び狭軌の軌道上に
列車無し、且つ、狭軌のレ−ル18と標準軌のレ−ル1
9との間の短絡無しの状態ではN受信部9とS受信部1
1とに交互に列車検知信号が表れる。狭軌道上に列車有
り、且つ、狭軌のレ−ル18と標準軌のレ−ル19の短
絡無しの状態ではS受信部11にのみ列車検知信号が表
れる。論理回路部14は検出したN受信部9とS受信部
11とにおける信号の有無からその排他論理和を検出す
る。異常検知部15は論理回路部14が検出した排他論
理和の連続状態により狭軌のレ−ル18と標準軌のレ−
ル19との間の短絡等の異常の有無を検出する。図4に
示すように、狭軌のレ−ル18と標準軌のレ−ル19に
短絡が無く、列車が無い場合は排他論理和が常に「1」に
なり、狭軌のレ−ル18と標準軌のレ−ル19に短絡が
無く、いずれか一方の軌道上に列車があるのときは排他
論理和が周期的に「1」になる。The logic circuit section 14 synchronizes with the train detection signal on the narrow gauge rail 18 and the standard gauge rail 19 based on the timing signal of the receiving counter 13, and communicates with the N receiving section 9 and the S receiving section. The presence / absence of a signal with the unit 11 is detected. Here, if the presence or absence of a signal is represented by "1" or "0", for example, as shown in the explanatory diagram of FIG. 4, there is no train on the standard gauge and narrow gauge track, and the narrow gauge rail 18 and the standard gauge Rail of Rail 1
In the state where there is no short circuit between the N receiving unit 9 and the S receiving unit 1
1 and the train detection signal appears alternately. When there is a train on a narrow track and there is no short circuit between the narrow gauge rail 18 and the standard gauge rail 19, a train detection signal appears only in the S receiving unit 11. The logic circuit unit 14 detects the exclusive OR of the detected N reception unit 9 and S reception unit 11 based on the presence or absence of the signal. The abnormality detecting unit 15 is configured to operate the narrow gauge rail 18 and the standard gauge rail based on the continuation of the exclusive OR detected by the logic circuit unit 14.
The presence / absence of an abnormality such as a short circuit with the controller 19 is detected. As shown in FIG. 4, there is no short circuit between the narrow gauge rail 18 and the standard gauge rail 19, and when there is no train, the exclusive OR is always "1". When there is no short circuit in the rail 19 of the gauge and there is a train on one of the tracks, the exclusive OR periodically becomes "1".
【0021】つぎに、狭軌のレ−ル18と標準軌のレ−
ル19との間に短絡が有り、且つ、標準軌及び狭軌の軌
道上に列車が無い場合は、狭軌のレ−ル18と標準軌の
レ−ル19上の信号にはそれぞれ相手側レ−ル18,1
9の列車検知信号の残留波形を生じ、図5の波形図に示
すように、N受信部9及びS受信部11では周期的な波
形23の列車検知信号の及び短絡により生じた残留波形
24の信号の合成信号を受信する。また、狭軌のレ−ル
18と標準軌のレ−ル19との間に短絡が有り、且つ、
標準軌又は狭軌の軌道上に列車が有る場合は、狭軌のレ
−ル18と標準軌のレ−ル19にはそれぞれ相手側レ−
ル18,19の残留波形を生じ、且つ、列車の車軸を通
して列車検知信号が流れることから、N受信部9及びS
受信部11では信号レベルの小さい信号を受信する。Next, the narrow gauge rail 18 and the standard gauge rail 18 are used.
In the case where there is a short circuit with the rail 19 and there is no train on the standard gauge and the narrow gauge track, the signals on the narrow gauge rail 18 and the standard gauge rail 19 are respectively displayed on the other party's rail. Le 18,1
9, a N-reception unit 9 and an S-reception unit 11 generate a residual waveform of the train detection signal of the periodic waveform 23 and a residual waveform 24 generated by the short circuit, as shown in the waveform diagram of FIG. Receive the composite signal. Also, there is a short circuit between the narrow gauge rail 18 and the standard gauge rail 19, and
If the train is on a standard gauge or a narrow gauge track, the narrow gauge rail 18 and the standard gauge rail 19 respectively have the opposite rail.
Since the residual waveforms of the signals 18 and 19 are generated and the train detection signal flows through the train axle, the N receiving unit 9 and the S
The receiving unit 11 receives a signal having a small signal level.
【0022】列車及び狭軌のレ−ル18と標準軌のレ−
ル19の短絡共に有りの状態ではN受信部9とS受信部
11とに列車検知信号が表れず、列車無し狭軌のレ−ル
18と標準軌のレ−ル19の短絡有りの状態ではN受信
部9とS受信部11共に列車検知信号が表れるので、そ
れぞれの状態を検出できる。異常検知部15はこの状態
の排他論理和を求めると、論理和が常に又は周期的に
「1」のときは短絡が無い状態で、排他論理和が常に
「0」のときは短絡が有る状態であるので、N受信部9
とS受信部11の信号の有無の組合せにより列車の有無
又は装置の異常の有無を検知する。Train and narrow gauge rail 18 and standard gauge rail
No train detection signal appears in the N receiving section 9 and the S receiving section 11 in a state where both short-circuits of the rail 19 are present. Since the train detection signal appears in both the receiving unit 9 and the S receiving unit 11, the respective states can be detected. When the abnormality detection unit 15 obtains the exclusive OR of this state, there is no short circuit when the logical OR is always or periodically “1”, and there is a short circuit when the exclusive OR is always “0”. Therefore, the N receiving unit 9
And the presence or absence of a signal from the S receiving unit 11 to detect the presence or absence of a train or the presence or absence of an abnormality in the device.
【0023】さらに、停電または三線軌道用列車検知装
置が故障したときは、N受信部9及びS受信部11共に
信号を全く検出しないので、停電または三線軌道用列車
検知装置の故障も検出することができる。Further, when the power failure or the train detection device for the three-track track fails, neither the N receiving unit 9 nor the S receiving unit 11 detects any signal. Can be.
【0024】このように、商用電源の周波数により、三
線軌道用列車検知装置全体の同期を取ることにより、送
信タイミングを異常検出器2に送信する必要が無くな
り、且つ、正確に列車を検知することができる。As described above, by synchronizing the entire three-track train detection device with the frequency of the commercial power supply, there is no need to transmit the transmission timing to the abnormality detector 2, and the train can be accurately detected. Can be.
【0025】また、狭軌のレ−ル18及び標準軌のレ−
ル19上の信号の有無の組合せにより、狭軌のレ−ル1
8と標準軌のレ−ル19との短絡等の異常を検出するの
で、簡易な構成で、確実に異常検知ができると共に、異
常の状態により列車の有無も検出でき、確実に列車を検
出することができる。The narrow gauge rail 18 and the standard gauge rail
Narrow gauge rail 1 depending on the combination of the presence or absence of the signal on rail 19
Since an abnormality such as a short circuit between the rail 8 and the rail 19 of the standard gauge is detected, the abnormality can be reliably detected with a simple configuration, and the presence or absence of a train can be detected according to the state of the abnormality, thereby reliably detecting the train. be able to.
【0026】[0026]
【発明の効果】この発明は以上説明したように、送信器
は商用電源の周波数を基に一定の間隔で商用電源の周波
数を整数分の一にした周波数の列車検知信号を狭軌のレ
−ルと標準軌のレ−ルに交互に送るので、狭軌と標準軌
の軌道上の列車を商用電源の周波数を基にした一定の間
隔で交互に検索することができる。As described above, according to the present invention, a transmitter transmits a train detection signal having a frequency obtained by reducing the frequency of a commercial power supply to a fraction of an integer at a constant interval based on the frequency of the commercial power supply. And the standard gauge rails are alternately sent, so that the trains on the narrow gauge and standard gauge tracks can be searched alternately at regular intervals based on the frequency of the commercial power supply.
【0027】狭軌信号受信器は狭軌のレ−ル上の信号を
受信し、受信した信号から列車の有無を検知し、標準軌
信号受信器は標準軌のレ−ル上の信号を受信し、受信し
た信号から列車の有無を検知し、狭軌道上及び標準軌道
上の列車の有無をそれぞれ独立して検出することができ
る。The narrow gauge signal receiver receives the signal on the narrow gauge rail, detects the presence or absence of a train from the received signal, the standard gauge signal receiver receives the signal on the standard gauge rail, The presence or absence of the train is detected from the received signal, and the presence or absence of the train on the narrow track and the standard track can be independently detected.
【0028】異常検出器は商用電源の波数を送信側カウ
ンタが計数したと同じ数だけ計数し、それを基に狭軌信
号受信器と標準軌信号受信器とにおける信号の有無を検
出し、狭軌信号受信器と標準軌信号受信器の信号の有無
の排他論理和を検出し、検出した排他論理和から軌道上
の異常の有無を検出するので、送信器の列車検知信号の
切替周期と同期して正確に軌道上の異常の有無を検知を
することができる。The abnormality detector counts the wave number of the commercial power supply by the same number as that counted by the transmission side counter, detects the presence or absence of a signal in the narrow gauge signal receiver and the standard gauge signal receiver based on the number, and detects the narrow gauge signal. The exclusive OR of the signal of the receiver and the standard gauge signal receiver is detected, and the presence or absence of an abnormality on the track is detected from the detected exclusive OR, so that it is synchronized with the switching cycle of the train detection signal of the transmitter. The presence or absence of an abnormality on the orbit can be accurately detected.
【0029】また、商用電源の周波数から三線軌道用列
車検知装置全体の同期を取るので、送信タイミング信号
を検知信号受信器に送信する必要を無くすことができ、
標準軌のレ−ルと狭軌のレ−ルとのどちらに信号を送信
しているかを知らせるための伝送回線が不要になる。Further, since the entire three-track track detection device is synchronized from the frequency of the commercial power supply, it is not necessary to transmit the transmission timing signal to the detection signal receiver.
A transmission line for informing whether the signal is transmitted to the standard gauge rail or the narrow gauge rail becomes unnecessary.
【図1】この発明の実施例を示す構成図である。FIG. 1 is a configuration diagram showing an embodiment of the present invention.
【図2】正常な状態の受信波形図である。FIG. 2 is a reception waveform diagram in a normal state.
【図3】標準軌に列車が侵入した場合の受信波形図であ
る。FIG. 3 is a reception waveform diagram when a train enters a standard gauge.
【図4】受信波形の有無を説明する説明図である。FIG. 4 is an explanatory diagram for explaining the presence or absence of a reception waveform.
【図5】標準軌と狭軌のレ−ルが短絡した場合の受信波
形図である。FIG. 5 is a reception waveform diagram when a standard gauge and a narrow gauge rail are short-circuited.
【図6】従来の三線式軌道回路の説明図である。FIG. 6 is an explanatory diagram of a conventional three-wire track circuit.
【図7】従来の三線式軌道回路の構成図である。FIG. 7 is a configuration diagram of a conventional three-wire track circuit.
1 送信器 2 標準軌信号受信器 3 狭軌信号受信器 4 異常検知器 5 分周部 6 送信部 7 送信側カウンタ 8 信号切替部 9 N受信部 10 Nゲ−ジ列車検知部 11 S受信部 12 Sゲ−ジ列車検知部 13 受信側カウンタ 14 論理回路部 15 異常検知部 16 商用電源 17 基本レ−ル 18 狭軌のレ−ル 19 標準軌のレ−ル DESCRIPTION OF SYMBOLS 1 Transmitter 2 Standard gauge signal receiver 3 Narrow gauge signal receiver 4 Abnormality detector 5 Frequency divider 6 Transmitter 7 Transmitter counter 8 Signal switcher 9 N receiver 10 N gauge train detector 11 S receiver 12 S-gauge train detector 13 Reception counter 14 Logic circuit 15 Abnormality detector 16 Commercial power supply 17 Basic rail 18 Narrow gauge rail 19 Standard gauge rail
Claims (1)
レ−ルとして狭軌と標準軌を構成した区間で2台のイン
ピ−ダンスボンドを設け列車を検知する三線軌道用列車
検知装置において、 列車検知信号の送信側装置として送信器を備え、列車検
知信号の受信側装置として狭軌信号受信器と標準軌信号
受信器と異常検出器を備え、 送信器は狭軌のレ−ルと標準軌のレ−ルに交互に列車検
知信号を出力するものであり、分周部と送信部と送信側
カウンタと信号切替部とを有し、 分周部は商用電源の周波数を整数分の一にした一定周波
数の信号を出力し、 送信部は分周部で出力した信号を基に列車検知信号を発
信し、 送信側カウンタは商用電源の波数を計数し、予め定めら
れた一定波数毎に切替信号を出力し、 信号切替部は送信側カウンタから切替信号を受けるたび
に送信部が発信する列車検知信号の送り先を狭軌のレ−
ルと標準軌のレ−ルの間で切替え、 狭軌信号受信器は狭軌のレ−ル上の信号を検知し狭軌上
の列車を検知するものであり、第一の受信部と第一の列
車検知部を有し、 第一の受信部は狭軌のレ−ル上の信号を受信し、 第一の列車検知部は第一の受信部が受信した信号から列
車の有無を検知し、 標準軌信号受信器は標準軌のレ−ル上の信号を検知し標
準軌上の列車を検知するものであり、第二の受信部と第
二の列車検知部を有し、 第二の受信部は標準軌のレ−ル上の信号を受信し、 第二の列車検知部は第二の受信部が受信した信号から列
車の有無を検知し、 異常検出器は狭軌信号受信器及び標準軌信号受信器が受
信した信号から狭軌及び標準軌の軌道上の異常を検出す
るものであり、受信側カウンタと論理回路部と異常検知
部を有し、 受信側カウンタは商用電源の波数を送信側カウンタが計
数したと同じ数だけ計数しタイミング信号を出力し、 論理回路部は受信側カウンタのタイミング信号を基に狭
軌信号受信器と標準軌信号受信器とにおける信号の有無
を検出し、狭軌信号受信器と標準軌信号受信器の信号の
有無の排他論理和を検出し、 異常検知部は論理回路部が検出した排他論理和から軌道
上の異常の有無を検出することを特徴とする三線軌道用
列車検知装置。1. A three-track track for detecting a train by providing two impedance bonds in a section comprising a narrow gauge and a standard gauge using one rail as a common rail using three rails. In the train detection device, a transmitter is provided as a transmitting device of the train detection signal, and a narrow gauge signal receiver, a standard gauge signal receiver, and an abnormality detector are provided as a receiving device of the train detection signal, and the transmitter is a narrow gauge laser. It outputs a train detection signal alternately to the rail of the standard gauge and the standard gauge. It has a frequency divider, a transmitter, a transmitter counter, and a signal switcher. The transmitter outputs a signal with a constant frequency that is reduced by a factor of 1.The transmitter transmits a train detection signal based on the signal output from the frequency divider, and the transmitting counter counts the number of waves of the commercial power supply and determines a predetermined constant. A switching signal is output for each wave number, and the signal switching unit switches off from the transmitting counter. The transmission destination of the train detection signal transmitted by the transmitter every time a replacement signal is received
The narrow gauge signal receiver detects the signal on the narrow gauge rail and detects the train on the narrow gauge, and the first receiving unit and the first train The first receiving unit receives a signal on a narrow gauge rail, the first train detecting unit detects the presence or absence of a train from the signal received by the first receiving unit, and The signal receiver detects a signal on a standard gauge rail and detects a train on the standard gauge. The signal receiver has a second receiving unit and a second train detecting unit. The signal on the standard gauge rail is received. The second train detector detects the presence or absence of a train from the signal received by the second receiver, and the abnormality detector receives the narrow gauge signal receiver and the standard gauge signal. It detects abnormalities in the orbits of the narrow gauge and the standard gauge from the signal received by the detector, and has a receiving counter, a logic circuit unit, and an abnormality detecting unit. The counter counts the number of waves of the commercial power supply by the same number as that counted by the transmitting counter, and outputs a timing signal.The logic circuit unit uses the timing signal of the receiving counter to generate a signal between the narrow gauge signal receiver and the standard gauge signal receiver. The presence / absence of a signal is detected, and the exclusive OR of the presence / absence of a signal from the narrow gauge signal receiver and the standard gauge signal receiver is detected. A train detection device for a three-track track characterized by detecting.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6217594A JP2626875B2 (en) | 1994-03-08 | 1994-03-08 | Train detector for three-track track |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6217594A JP2626875B2 (en) | 1994-03-08 | 1994-03-08 | Train detector for three-track track |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH07246932A JPH07246932A (en) | 1995-09-26 |
JP2626875B2 true JP2626875B2 (en) | 1997-07-02 |
Family
ID=13192532
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6217594A Expired - Fee Related JP2626875B2 (en) | 1994-03-08 | 1994-03-08 | Train detector for three-track track |
Country Status (1)
Country | Link |
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JP (1) | JP2626875B2 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5094774B2 (en) * | 2009-03-30 | 2012-12-12 | 株式会社日立製作所 | Train control ground device and train control system |
JP5214544B2 (en) * | 2009-06-19 | 2013-06-19 | 株式会社日立製作所 | Break detector added to train detector for three-wire track circuit using digital telegram |
JP5364603B2 (en) * | 2010-01-18 | 2013-12-11 | 株式会社日立製作所 | Train detector |
-
1994
- 1994-03-08 JP JP6217594A patent/JP2626875B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JPH07246932A (en) | 1995-09-26 |
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