JP2545035B2 - Train detector - Google Patents
Train detectorInfo
- Publication number
- JP2545035B2 JP2545035B2 JP5163859A JP16385993A JP2545035B2 JP 2545035 B2 JP2545035 B2 JP 2545035B2 JP 5163859 A JP5163859 A JP 5163859A JP 16385993 A JP16385993 A JP 16385993A JP 2545035 B2 JP2545035 B2 JP 2545035B2
- Authority
- JP
- Japan
- Prior art keywords
- signal
- train
- sent
- frequency
- phase
- 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
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- Train Traffic Observation, Control, And Security (AREA)
Description
【０００１】[0001]
【産業上の利用分野】この発明は走行している列車の在
線区間を検知する列車検知装置、特に在線区間の検知精
度の向上と、地上設備の簡略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 detection device for detecting an on-rail section of a running train, and more particularly to improvement of detection accuracy of the on-rail section and simplification of ground equipment.
【０００２】[0002]
【従来の技術】現在一般に用いられている自動列車制御
装置は、列車が走行する軌道に軌道回路方式やル−プ方
式等により固定した閉そく区間を設け、１閉そく区間を
１列車だけの運転に専用させる原則を採用し、各区間毎
に地上から列車に対して先行列車の有無と走行路条件に
よって許容速度信号を送信している。列車は地上から送
られた許容速度信号が指示する速度と列車速度とを常に
比較し、列車速度が許容速度信号が指示する速度以上に
なると自動的にブレ−キを作動して減速させ、所定の速
度以下になるとブレ−キを緩解する。このようにして追
突事故等の防止を図っている。2. Description of the Related Art An automatic train control device generally used at present provides a closed block section on a track on which a train runs by a track circuit system, a loop system or the like so that one closed block section can be operated by only one train. By adopting the principle of exclusive use, the permissible speed signal is transmitted from the ground to the train for each section depending on the presence or absence of a preceding train and the condition of the running route. The train always compares the speed instructed by the permissible speed signal sent from the ground with the train speed, and when the train speed exceeds the speed instructed by the permissible speed signal, the brake is automatically activated to decelerate the train. The brake is relieved when the speed becomes less than. In this way, a rear-end collision accident is prevented.
【０００３】[0003]
【発明が解決しようとする課題】上記のように軌道に閉
そく区間を設けた制御方式では、列車の運行密度が高く
なってくると、閉そく区間の距離を短くして列車間隔を
短くしている。しかしながら閉そく区間の距離を短くす
ると、各閉そく区間毎に設ける地上装置の設備が増加
し、設備の費用や設置スペ−スが増大するとともに、そ
の保守が容易でないという短所があった。In the control system in which the track is provided with a block section as described above, the train interval is shortened by shortening the distance of the block section when the train operation density becomes high. . However, when the distance of the block section is shortened, the equipment of the ground equipment provided for each block section is increased, the cost and installation space of the equipment are increased, and the maintenance thereof is not easy.
【０００４】さらに、電気回路上の問題から閉そく区間
の最小区間が限定され、列車間隔を一定距離以下に短く
することはできず、列車の運行密度を高めるには限度が
あった。Further, due to problems with the electric circuit, the minimum length of the closed section is limited, the train interval cannot be shortened to a certain distance or less, and there is a limit to increase the train operation density.
【０００５】この発明はかかる短所を解決するためにな
されたものであり、簡単な地上設備で列車が走行してい
る位置を高精度に検知し、列車の運行密度を高めること
ができる列車検知装置を得ることを目的とするものであ
る。The present invention has been made to solve the above disadvantages, and is a train detection device capable of detecting the position where a train is traveling with high accuracy with a simple ground facility and increasing the train operation density. The purpose is to obtain.
【０００６】[0006]
【課題を解決するための手段】この発明に係る車両検知
装置は、車上装置として列車の先頭部と後端部に設けら
れた列車信号送信装置とアンテナを有し、地上装置はパ
ターンベルトと４組のデータ入力部と２組の位相検知部
と２組の信号変換部と論理部と在線区間検出部とを有
し、車上の各列車信号送信装置は異なる周波数の信号を
発生してアンテナに送り、アンテナはそれぞれ異なる周
波数の車両位置信号を地上のパターンベルトに送信し、
地上のパターンベルトは車両の進行方向に沿って並列に
配置された交差誘導線と単一誘導線とを有し、交差誘導
線は一定距離Ｌ毎に交差して配列され、単一誘導線は連
続した単一ループで形成され、各データ入力部は交差誘
導線と単一誘導線から送られる受信信号から異なる周波
数の信号をそれぞれ選別して通過させ、位相検知部は各
周波数毎に交差誘導線と単一誘導線からデータ入力部を
介して送られる受信信号の位相変化を検知し、交差誘導
線と単一誘導線の受信信号が同一位相のとき正の信号を
出力し、位相が異なるときは負の信号を出力し、信号変
換部は各周波数毎に位相検知部から送られる正，負の信
号に応じたパルス信号を出力し、論理部は信号変換部か
ら異なる周波数毎に送られるパルス信号を論理演算して
列車の位置信号を発生し、在線区間検出部は論理部で発
生した位置信号を逐次積算して、列車の走行位置信号を
出力することを特徴とする。A vehicle detection device according to the present invention has a train signal transmission device and an antenna provided on the front and rear ends of a train as an on-board device, and a ground device includes a pattern belt. It has four sets of data input section, two sets of phase detecting section, two sets of signal converting section, a logic section and an on-rail section detecting section, and each train signal transmitting device on the train generates signals of different frequencies. Sending to the antenna, the antenna sends vehicle position signals of different frequencies to the pattern belt on the ground,
The pattern belt on the ground has a crossing guide wire and a single guide wire arranged in parallel along the traveling direction of the vehicle. The crossing guide wires are arranged to intersect each other at a constant distance L. It is formed in a continuous single loop, each of the data input unit passed by selecting different frequency of a signal from a received signal sent from the intersection guide wire and a single guiding line respectively, the phase detection unit each
Detects the phase change of the reception signal sent from the crossing induction line and the single induction line through the data input section for each frequency, and outputs a positive signal when the reception signal of the crossing induction line and the single induction line have the same phase. However, when the phases are different, a negative signal is output, the signal conversion unit outputs a pulse signal according to the positive and negative signals sent from the phase detection unit for each frequency, and the logic unit differs from the signal conversion unit. A train position signal is generated by logically operating pulse signals sent for each frequency, and the on-rail section detection unit sequentially integrates the position signals generated by the logic unit and outputs a train running position signal. To do.
【０００７】[0007]
【作用】この発明においては、走行する列車に設けた列
車信号送信装置から異なる周波数の信号を発生しアンテ
ナを介して地上に送信し、地上に設置されたパタ−ンベ
ルトの２層の誘導線で受信する。パタ−ンベルトの交差
誘導線は受信信号の位相を一定距離Ｌ毎に反転して出力
し、他方の単一誘導線は受信信号をそのまま出力する。
この交差誘導線と単一誘導線から送られる受信信号の周
波数をデ−タ入力部でそれぞれ選別し、各周波数毎に交
差誘導線と単一誘導線から送られる受信信号の位相の変
化を位相検知部で検知する。この交差誘導線と単一誘導
線から送られる受信信号の位相の変化に応じたパルス信
号を信号変換部で発生し出力する。この周波数毎に出力
されるパルス信号を論理部で論理演算して、距離Ｌを分
割した列車の絶対位置信号を発生する。発生した絶対位
置信号を在線区間検出部で逐次積算して列車の在線区間
を検出する。According to the present invention, the train signal transmitting device provided in the traveling train generates signals of different frequencies and transmits the signals to the ground via the antenna, and the two-layer guide wire of the pattern belt installed on the ground. To receive. The crossing guide line of the pattern belt inverts the phase of the received signal for each constant distance L and outputs the inverted signal, and the other single guide line outputs the received signal as it is.
The frequency of the received signal sent from this crossing induction line and the single induction line is selected by the data input section, and the phase change of the reception signal sent from the crossing induction line and the single induction line is selected for each frequency. It is detected by the detector. The signal converter generates and outputs a pulse signal corresponding to the change in the phase of the reception signal sent from the crossing induction line and the single induction line. The pulse signal output for each frequency is logically operated by the logic unit to generate the absolute position signal of the train in which the distance L is divided. The on-rail section detecting unit sequentially integrates the generated absolute position signals to detect the on-rail section of the train.
【０００８】[0008]
【実施例】図１，図２，図３はこの発明の一実施例の構
成を示すブロック図であり、図１は車上装置を示し、図
２は地上装置の全体を示し、図３は地上装置の列車位置
検知装置の構成を示す。列車１に搭載された車上装置２
は、図１に示すように列車信号送信装置３ａ，３ｂと情
報送受信装置４ａ，４ｂと自動運転制御装置５とアンテ
ナ６ａ，６ｂとを有する。列車信号送信装置３ａ，３ｂ
はそれぞれ異なる周波数ｆ1，ｆ2の信号を発生する発振
器を有し、列車信号送信装置３ａは列車１の先頭車両１
ａに搭載され、列車信号送信装置３ｂは列車１の最後尾
の車両１ｎに搭載されている。情報送受信装置４ａ，４
ｂはモニタ情報等を地上へ送信するとともに地上から送
られた制御指令や列車位置検索信号を受信し、列車信号
送信装置３ａ，３ｂに列車位置検索信号を送る。また、
情報送受信装置４ａ，４ｂは地上から送られた制御指令
を自動運転制御装置５に送る。自動運転制御装置５は車
両１の速度制御や停止などの運転操作を制御する。アン
テナ６ａは列車信号送信装置３ａと情報送受信装置４ａ
に接続され、アンテナ６ｂは列車信号送信装置３ａと情
報送受信装置４ｂに接続され、アンテナ６ａとアンテナ
６ｂは距離Ｄだけ隔てて配置されている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1, FIG. 2 and FIG. 3 are block diagrams showing the configuration of an embodiment of the present invention. FIG. 1 shows an on-board device, FIG. 2 shows an entire ground device, and FIG. The structure of the train position detection device of a ground device is shown. On-board device 2 mounted on train 1
As shown in FIG. 1, it has train signal transmitters 3a and 3b, information transmitters / receivers 4a and 4b, an automatic driving controller 5, and antennas 6a and 6b. Train signal transmitters 3a and 3b
Have oscillators that generate signals of different frequencies f 1 and f 2 , respectively.
The train signal transmitting device 3b is mounted on the vehicle a, and the train signal transmitting device 3b is mounted on the last vehicle 1n of the train 1. Information transmitting / receiving devices 4a, 4
b transmits the monitor information and the like to the ground, receives the control command and the train position search signal sent from the ground, and sends the train position search signal to the train signal transmission devices 3a and 3b. Also,
The information transmission / reception devices 4a and 4b send the control command sent from the ground to the automatic driving control device 5. The automatic driving control device 5 controls driving operations such as speed control and stop of the vehicle 1. The antenna 6a includes a train signal transmitting device 3a and an information transmitting / receiving device 4a.
The antenna 6b is connected to the train signal transmission device 3a and the information transmission / reception device 4b, and the antenna 6a and the antenna 6b are arranged with a distance D therebetween.
【０００９】地上装置７は、図２に示すように、レ−ル
８の中央又はレ−ル８の外側近傍に沿って配置されたパ
タ−ンベルト９と列車位置検知装置１０，情報伝送装置
１１，列車情報出力装置１２及び結合器１３とを有す
る。パタ−ンベルト９は列車１の進行方向に沿って並列
に配置された交差誘導線９ａと単一誘導線９ｂの２層の
ル−プを有し、車上のアンテナ６ａ，６ｂから送信され
る周波数ｆ1，ｆ2の列車位置信号を受信する。交差誘導
線９ａは距離Ｌ、例えばＬ＝100ｍ毎に交差して配列さ
れ、単一誘導線９ａは連続し単一ル−プで形成されてい
る。As shown in FIG. 2, the ground device 7 includes a pattern belt 9, a train position detecting device 10, and an information transmitting device 11 which are arranged at the center of the rail 8 or near the outside of the rail 8. , A train information output device 12 and a coupler 13. The pattern belt 9 has a two-layer loop of a crossing guide line 9a and a single guide line 9b arranged in parallel along the traveling direction of the train 1, and is transmitted from the antennas 6a, 6b on the car. Train position signals of frequencies f 1 and f 2 are received. The intersecting guide lines 9a are arranged so as to intersect each other at a distance L, for example, L = 100 m, and the single guide line 9a is continuous and formed of a single loop.
【００１０】列車位置検知装置１０は、図３に示すよう
に、デ−タ入力部１４ａ〜１４ｄと位相検知部１５ａ，
１５ｂと信号処理部１６ａ，１６ｂと論理部１７及び在
線区間検知部１８とを有する。デ−タ入力部１４ａ，１
４ｃは交差誘導線９ａに接続され、デ−タ入力部１４
ｂ，１４ｄは単一誘導線９ｂに接続されている。そして
デ−タ入力部１４ａ，１４ｂは周波数ｆ1の信号のみを
通過し、他の周波数の信号を阻止し、デ−タ入力部１４
ｃ，１４ｄは周波数ｆ2の信号のみを通過し、他の周波
数の信号を阻止する。位相検知部１５ａはデ−タ入力部
１４ａ，１４ｂから送られる周波数ｆ1の受信信号の位
相を比較し、デ−タ入力部１４ａから送られる信号とデ
−タ入力部１４ｂから送られる信号が同一位相のときは
周波数２ｆ1の正の信号を出力し、位相が180度異なると
きは周波数２ｆ1の負の信号を出力する。位相検知部１
５ｂはデ−タ入力部１４ｃ，１４ｄから送られる周波数
ｆ2の受信信号の位相を比較し、デ−タ入力部１４ｃか
ら送られる信号とデ−タ入力部１４ｄから送られる信号
が同一位相のときは周波数２ｆ2の正の信号を出力し、
位相が180度異なるときは周波数２ｆ2の負の信号を出力
する。As shown in FIG. 3, the train position detecting device 10 includes a data input section 14a-14d and a phase detecting section 15a.
15b, signal processing units 16a and 16b, a logic unit 17, and an in-rail section detection unit 18. Data input section 14a, 1
4c is connected to the crossing guide line 9a, and the data input unit 14
b and 14d are connected to a single guide wire 9b. The data input sections 14a and 14b pass only the signal of the frequency f 1 and block the signals of other frequencies, and the data input section 14a
c and 14d pass only the signal of the frequency f 2 and block the signals of other frequencies. The phase detection unit 15a compares the phases of the received signals of the frequency f 1 sent from the data input units 14a and 14b, and the signal sent from the data input unit 14a and the signal sent from the data input unit 14b are compared. When the phases are the same, a positive signal of frequency 2f 1 is output, and when the phases are 180 degrees different, a negative signal of frequency 2f 1 is output. Phase detector 1
5b compares the phases of the received signals of the frequency f 2 sent from the data input sections 14c and 14d, and the signal sent from the data input section 14c and the signal sent from the data input section 14d have the same phase. Then output a positive signal of frequency 2f 2 ,
When the phases are 180 degrees different, a negative signal of frequency 2f 2 is output.
【００１１】信号処理部１６ａ，１６ｂはそれぞれ位相
検知部１５ａ，１５ｂから正の信号が送られたときには
高レベル、負の信号が送られたときに低レベルになるパ
ルス信号を出力する。論理部１７は信号処理部１６ａ，
１６ｂから出力されるパルス信号を論理演算して列車１
の位置信号を発生する。在線区間検知部１８は論理部１
７から送られる列車の位置信号を逐次計測し、列車１の
各パタ−ンベルト９への進入距離を積算し、進入距離の
積算値により列車１の在線区間情報を情報伝送装置１１
に送る。The signal processing units 16a and 16b output pulse signals which become high level when a positive signal is sent from the phase detecting units 15a and 15b and become low level when a negative signal is sent respectively. The logic unit 17 includes a signal processing unit 16a,
Train 1 by logically calculating the pulse signal output from 16b
Generates the position signal of. The on-rail section detection unit 18 is the logical unit 1
The position signals of the train sent from 7 are sequentially measured, the approach distances of the trains 1 to the respective pattern belts 9 are integrated, and the in-rail section information of the train 1 is obtained by the information transmission device 11 based on the integrated value of the approach distances.
Send to
【００１２】情報伝送装置１１は在線区間検知部１８か
ら送られる在線区間情報を表示するとともに列車情報出
力装置１２に送る。列車情報出力装置１２は送られた在
線区間情報や列車１の制御情報，列車位置検索信号を結
合器１３とパタ−ンベルト９を介して列車１に送信す
る。The information transmission device 11 displays the on-rail section information sent from the on-rail section detector 18 and sends it to the train information output device 12. The train information output device 12 transmits the sent in-rail section information, the control information of the train 1, and the train position search signal to the train 1 via the coupler 13 and the pattern belt 9.
【００１３】上記のように構成された列車検知装置の動
作を図４のフロ−チャ−トと図５，図６の波形図を参照
して説明する。The operation of the train detecting device constructed as described above will be described with reference to the flowchart of FIG. 4 and the waveform diagrams of FIGS.
【００１４】列車情報出力装置１２から送られる列車位
置検索信号を走行している列車１の情報送受信装置４
ａ，４ｂで検出し、列車信号送信装置３ａ，３ｂから列
車位置信号が出力されると（ステップＳ１）、列車信号
送信装置３ａは周波数ｆ1の信号を発生しアンテナ６ａ
を介して地上に送信し、列車信号送信装置３ｂは周波数
ｆ2の信号を発生しアンテナ６ｂを介して地上に送信す
る（ステップＳ２）。地上のパタ−ンベルト９の交差誘
導線９ａと単一誘導線９ｂは列車１からの周波数ｆ1，
ｆ2の信号を受信し、デ−タ入力部１４ａ〜１４ｄに送
る。この列車１からの信号を受信する交差誘導線９ａ
は，例えば距離Ｌ＝100ｍ毎に交差して配列されている
から、図５（ａ）に示すように、距離Ｌ＝100ｍ毎に位
相を反転した受信信号を出力する。一方、単一誘導線９
ｂは単一のル−プで形成されているから、図５（ｂ）に
示すように位相が変化しない受信信号をそのまま連続し
て出力する。The information transmission / reception device 4 of the train 1 running the train position search signal sent from the train information output device 12
When the train position signal is output from the train signal transmission devices 3a and 3b (step S1), the train signal transmission device 3a generates a signal of frequency f 1 and the antenna 6a
The train signal transmitter 3b generates a signal of frequency f 2 and transmits it to the ground via the antenna 6b (step S2). The cross guide line 9a and the single guide line 9b of the pattern belt 9 on the ground are the frequency f 1 from the train 1 ,
receiving a signal f 2, de - Send the data input section 14a to 14d. Crossing guide line 9a for receiving signals from this train 1
Are arrayed so as to intersect each other at a distance L = 100 m, for example, a phase-inverted reception signal is output every distance L = 100 m, as shown in FIG. 5A. On the other hand, single lead wire 9
Since b is formed of a single loop, the reception signal whose phase does not change as shown in FIG. 5B is continuously output as it is.
【００１５】この交差誘導線９ａと単一誘導線９ｂから
それぞれ周波数ｆ1の受信信号がデ−タ入力部１４ａ〜
１４ｄに送られると、デ−タ入力部１４ａ，１４ｂで周
波数ｆ1の信号のみを通過して位相検知部１５ａに送
る。位相検知部１５ａはデ−タ入力部１４ａから送られ
た信号とデ−タ入力部１４ｂから送られた信号を比較
し、図５（ｃ）に示すようにデ−タ入力部１４ａから送
られた信号とデ−タ入力部１４ｂから送られた信号が同
一位相のときは、周波数２ｆ1の正の信号を出力し、両
信号の位相が180度異なるときは周波数２ｆ1の負の信号
を出力して信号処理部１６ａに送る（ステップＳ３）。
信号処理部１６ａは周波数２ｆ1の正の信号が送られる
と、図５（ｄ）に示すように、高レベルとなり、周波数
２ｆ1の負の信号が送られると低レベルになるパルス信
号を出力する。この距離Ｌ＝100ｍ毎に変化するパルス
信号が論理部１７に送られる。Received signals of frequency f 1 from the crossing guide line 9a and the single guide line 9b are received by the data input sections 14a to 14a.
When it is sent to 14d, only the signal of frequency f 1 is passed through the data input sections 14a and 14b and sent to the phase detection section 15a. The phase detecting section 15a compares the signal sent from the data input section 14a with the signal sent from the data input section 14b, and the signal is sent from the data input section 14a as shown in FIG. 5 (c). When the signal sent from the data input unit 14b and the signal sent from the data input unit 14b have the same phase, a positive signal having a frequency of 2f 1 is output, and when the phases of both signals are 180 degrees different, a negative signal having a frequency of 2f 1 is output. The signal is output and sent to the signal processing unit 16a (step S3).
When the signal processing unit 16a is sent a positive signal of the frequency 2f 1, as shown in FIG. 5 (d), goes high, the output pulse signal becomes a negative signal of the frequency 2f 1 is sent to the low-level To do. A pulse signal that changes every distance L = 100 m is sent to the logic unit 17.
【００１６】パタ−ンベルト９の交差誘導線９ａと単一
誘導線９ｂで周波数ｆ2の列車位置信号を受信したとき
も上記と同様にデ−タ入力部１４ｃ，１４ｄで周波数ｆ
2の信号のみを通過させて位相検知部１５ｂに送る。位
相検知部１５ｂは交差誘導線９ａと単一誘導線９ｂでか
らの受信信号の位相に応じて、周波数ｆ2の受信信号を
周波数２ｆ2，２ｆ3の正，負の信号に変換して信号処理
部１６ｂに送る。信号変換部１６ｂは送られた信号を周
波数２ｆ2の正，負の信号に応じたパルス信号に変換し
て出力する。Even when the train position signal of frequency f 2 is received by the crossing guide line 9a and the single guide line 9b of the pattern belt 9, the frequency f is received by the data input sections 14c and 14d in the same manner as above.
Only the 2 signal is passed and sent to the phase detector 15b. The phase detection unit 15b converts the reception signal of the frequency f 2 into positive and negative signals of the frequencies 2f 2 and 2f 3 according to the phase of the reception signal from the crossing induction line 9a and the single induction line 9b, and outputs the signal. It is sent to the processing unit 16b. The signal conversion unit 16b converts the transmitted signal into pulse signals corresponding to positive and negative signals of frequency 2f 2 and outputs the pulse signals.
【００１７】この信号処理部１６ａ，１６ｂから出力さ
れるパルス信号は、列車１に搭載されているアンテナ６
ａ，６ｂの間隔Ｄが列車１の長さに応じて配列されてい
るから、図６に示すように、アンテナ６ａから送信して
いる周波数ｆ1の信号による信号処理部１６ａの出力信
号Ｓ(ｆ1)に対してアンテナ６ｂから送信している周波
数ｆ2の信号による信号処理部１６ｂの出力信号Ｓ(ｆ2)
は距離Ｄだけ遅れて出力される。The pulse signals output from the signal processing units 16a and 16b are used by the antenna 6 mounted on the train 1.
Since the intervals D between a and 6b are arranged according to the length of the train 1, as shown in FIG. 6, the output signal S (of the signal processing unit 16a by the signal of the frequency f 1 transmitted from the antenna 6a output signal S (f 2 ) of the signal processing unit 16b based on the signal of frequency f 2 transmitted from the antenna 6b to f 1 ).
Is output with a delay of distance D.
【００１８】そこで論理部１７は周波数ｆ1，ｆ2の信号
に対応して信号処理部１６ａ，１６ｂから送られるパル
ス信号Ｓ(ｆ1)，Ｓ(ｆ2)を論理演算し、パルス信号Ｓ
(ｆ1)，Ｓ(ｆ2)が共に高レベル又は低レベルのときに高
レベルとなり、その他のときに低レベルになるパルス信
号Ｓを絶対位置信号として発生する（ステップＳ４）。
このパルス信号Ｓを発生するパルス信号Ｓ(ｆ1)，Ｓ(ｆ
2)は高レベルと低レベルの幅がともに例えばＬ＝100ｍ
であり、パルス信号Ｓ(ｆ1)，Ｓ(ｆ2)にはＤの遅れがあ
るから、パルス信号Ｓは高レベルの幅(Ｌ−Ｄ)と低レベ
ルの幅Ｄで繰返し周期Ｌ＝100ｍのパルスになる。した
がってアンテナ６ａ，６ｂから送信している周波数
ｆ1，ｆ2の列車位置信号を逐次受信してパルス信号Ｓを
発生すると、距離Ｄと距離（Ｌ−Ｄ）おきに走行する列
車１の絶対位置を検知することができる。このように列
車１の先頭車両１ａと最後尾の車両１ｎから送り出す周
波数ｆ1の信号と周波数ｆ2の信号の位相を検知して、列
車１の走行している位置を検知するから、列車１の走行
位置を地上で高精度に検知することができる。Therefore, the logic unit 17 logically operates the pulse signals S (f 1 ) and S (f 2 ) sent from the signal processing units 16a and 16b corresponding to the signals of the frequencies f 1 and f 2 to obtain the pulse signal S.
When both (f 1 ) and S (f 2 ) are at a high level or a low level, a pulse signal S that becomes a high level and otherwise becomes a low level is generated as an absolute position signal (step S4).
The pulse signals S (f 1 ), S (f
2 ) width of high level and low level are both L = 100m
Since the pulse signals S (f 1 ) and S (f 2 ) have a delay of D, the pulse signal S has a high level width (LD) and a low level width D and a repetition period L = 100 m. Becomes the pulse of. Therefore, when train position signals of frequencies f 1 and f 2 transmitted from the antennas 6a and 6b are sequentially received and a pulse signal S is generated, the absolute position of the train 1 traveling every distance D and distance (LD). Can be detected. As described above, the phase of the signal of frequency f 1 and the signal of frequency f 2 sent from the first vehicle 1a and the last vehicle 1n of the train 1 is detected to detect the traveling position of the train 1. The traveling position of can be detected with high accuracy on the ground.
【００１９】在線区間検知部１８は論理部１７で検知し
た列車１の絶対位置デ−タを逐次積算し（ステップＳ
５）、列車１の各パタ−ンベルト９への進入距離を積算
し（ステップＳ６）、進入距離の積算値により列車１の
在線区間情報を情報伝送装置１１に送る（ステップＳ
７）。情報伝送装置１１は在線区間検知部１８から送ら
れる在線区間情報を列車情報出力装置１２に送る。列車
情報出力装置１２は送られた在線区間情報をパタ−ンベ
ルト９を介して列車１に送信する。列車１の自動運転装
置５は送られた在線区間情報等により運行を制御する。The on-rail section detection unit 18 successively integrates the absolute position data of the train 1 detected by the logic unit 17 (step S
5), the approach distance to each pattern belt 9 of the train 1 is integrated (step S6), and the in-rail section information of the train 1 is sent to the information transmission device 11 based on the integrated value of the approach distance (step S).
7). The information transmission device 11 sends the on-rail section information sent from the on-rail section detector 18 to the train information output device 12. The train information output device 12 transmits the sent on-rail section information to the train 1 via the pattern belt 9. The automatic operation device 5 of the train 1 controls the operation based on the sent on-rail section information and the like.
【００２０】なお、上記実施例は列車１の先頭車両１ａ
と最後尾の車両１ｎに列車位置信号送信装置３ａ，３ｂ
とアンテナ６ａ，６ｂを設けた場合について説明した
が、列車１の中間部の車両にも異なる周波数の信号を発
生する複数の列車信号送信装置と、等間隔をおいて配置
した複数のアンテナを設けることにより、距離Ｌをより
細分化して列車１の在線区間を検出することができる。In the above embodiment, the first car 1a of the train 1 is used.
And train position signal transmitters 3a and 3b on the last car 1n
The case where the antennas 6a and 6b are provided has been described. However, a plurality of train signal transmission devices that generate signals of different frequencies are provided to vehicles in the middle of the train 1, and a plurality of antennas that are arranged at equal intervals are provided. As a result, the distance L can be subdivided and the on-rail section of the train 1 can be detected.
【００２１】[0021]
【発明の効果】この発明は以上説明したように、走行す
る列車の所定間隔をおいた位置から異なる周波数の信号
を発生しアンテナを介して地上に送信し、地上に設置さ
れたパタ−ンベルトの２層の誘導線で受信し、パタ−ン
ベルトの交差誘導線は受信信号の位相を一定距離Ｌ毎に
反転して出力し、他方の単一誘導線は受信信号をそのま
ま出力し、この交差誘導線と単一誘導線から送られる受
信信号の位相の変化を各周波数毎に検知して列車の絶対
位置を検出するから、列車の走行位置を地上で高精度に
検知することができる。As described above, according to the present invention, signals of different frequencies are generated from positions at predetermined intervals of a traveling train and transmitted to the ground via an antenna, and a pattern belt installed on the ground is used. The signal is received by a two-layered guide wire, and the crossed guide wire of the pattern belt inverts the phase of the received signal every fixed distance L to output, and the other single guided wire outputs the received signal as it is. Since the absolute position of the train is detected by detecting the change in the phase of the received signal sent from the line and the single guiding line for each frequency, the running position of the train can be detected on the ground with high accuracy.
【００２２】この検出した列車の絶対位置を逐次積算す
ることにより走行している列車の在線区間を検出するか
ら、列車の在線区間を決め細かく追跡することができ、
列車の運行密度を高めることができる。Since the on-rail section of the running train is detected by sequentially accumulating the detected absolute positions of the train, the on-rail section of the train can be determined and finely tracked.
Train operation density can be increased.
【００２３】また、レ−ルに沿って交差誘導線と単一誘
導線の２層の誘導線を有するパタ−ンベルトを布設すれ
ば良いから、地上設備を簡略化することができる。Further, since it is sufficient to lay a pattern belt having two layers of guide wires of a crossing guide wire and a single guide wire along the rail, it is possible to simplify the above-ground equipment.
【図１】この発明の実施例の車上装置の構成を示すブロ
ック図である。FIG. 1 is a block diagram showing a configuration of an on-vehicle device according to an embodiment of the present invention.
【図２】上記実施例の地上装置の全体構成を示すブロッ
ク図である。FIG. 2 is a block diagram showing the overall configuration of the above-mentioned ground equipment.
【図３】地上装置の列車位置検知装置の構成を示すブロ
ック図である。FIG. 3 is a block diagram showing a configuration of a train position detection device of a ground device.
【図４】FIG. 4
上記実施例の動作を示すフローチャートであ6 is a flowchart showing the operation of the above embodiment.
る。You.
【図５】[Figure 5] 上記実施例の動作原理を示す波形図である。It is a wave form diagram which shows the operation principle of the said Example.
【図６】[Figure 6] 上記実施例の動作を示す波形図である。It is a wave form diagram which shows operation | movement of the said Example.
１ 列車 ２ 車上装置 ３ａ，３ｂ 列車信号送信装置 ４ａ，４ｂ 情報送受信装置 ６ａ，６ｂ アンテナ ７ 地上装置 ９ パターンベルト ９ａ 交差誘導線 ９ｂ 単一誘導線 １０ 列車位置検知装置 １１ 情報伝送装置 １２ 列車情報出力装置 １４ａ〜１４ｄ データ入力部 １５ａ，１５ｂ 位相検知部 １６ａ，１６ｂ 信号処理部 １７ 論理部 １８ 在線区間検知部 1 Train 2 On-board device 3a, 3b Train signal transmitting device 4a, 4b Information transmitting / receiving device 6a, 6b Antenna 7 Ground device 9 Pattern belt 9a Crossing guide line 9b Single guide line 10 Train position detecting device 11 Information transmitting device 12 Train information Output device 14a to 14d Data input unit 15a, 15b Phase detection unit 16a, 16b Signal processing unit 17 Logic unit 18 In-line section detection unit
Claims (1)
設けられた列車信号送信装置とアンテナを有し、地上装
置はパターンベルトと４組のデータ入力部と２組の位相
検知部と２組の信号変換部と論理部と在線区間検出部と
を有し、 車上の各列車信号送信装置は異なる周波数の信号を発生
してアンテナに送り、アンテナはそれぞれ異なる周波数
の車両位置信号を地上のパターンベルトに送信し、 地上のパターンベルトは車両の進行方向に沿って並列に
配置された交差誘導線と単一誘導線とを有し、交差誘導
線は一定距離Ｌ毎に交差して配列され、単一誘導線は連
続した単一ループで形成され、各データ入力部 は交差誘導線と単一誘導線から送られる
受信信号から異なる周波数の信号をそれぞれ選別して通
過させ、位相検知部は各周波数毎に交差誘導線と単一誘
導線からデータ入力部を介して送られる受信信号の位相
変化を検知し、交差誘導線と単一誘導線の受信信号が同
一位相のとき正の信号を出力し、位相が異なるときは負
の信号を出力し、信号変換部は各周波数毎に位相検知部
から送られる正，負の信号に応じたパルス信号を出力
し、論理部は信号変換部から異なる周波数毎に送られる
パルス信号を論理演算して列車の位置信号を発生し、在
線区間検出部は論理部で発生した位置信号を逐次積算し
て、列車の走行位置信号を出力することを特徴とする列
車検知装置。1. A train signal transmission device and an antenna provided at the front and rear ends of a train as an on-board device, and the ground device comprises a pattern belt, four sets of data input units, and two sets of phase detection units. When two pairs of and a signal conversion unit and the logical unit and the on-rail section detecting unit, sent to the antenna each train signal transmitting apparatus on the vehicle and generates a signal having a frequency different antennas different frequencies of the vehicle position signal To the pattern belt on the ground, and the pattern belt on the ground has a crossing guide wire and a single guide wire which are arranged in parallel along the traveling direction of the vehicle, and the crossing guide wire intersects at a constant distance L. The single input line is formed by a continuous single loop, and each data input section selects and passes signals of different frequencies from the reception signals sent from the crossing induction line and the single induction line, and passes the phase. detection unit exchange is for each frequency Detects the phase change of the reception signal sent from the induction wire and the single induction wire through the data input section, and outputs a positive signal when the reception signal of the cross induction wire and the reception signal of the single induction wire have the same phase. When different, it outputs a negative signal, the signal converter outputs a pulse signal according to the positive and negative signals sent from the phase detector for each frequency, and the logic unit sends a signal for each different frequency from the signal converter. Train detection device characterized in that a train position signal is generated by logically operating a pulse signal that is generated, and the on-rail section detection unit sequentially integrates the position signals generated in the logic unit and outputs a running position signal of the train. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5163859A JP2545035B2 (en) | 1993-06-10 | 1993-06-10 | Train detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5163859A JP2545035B2 (en) | 1993-06-10 | 1993-06-10 | Train detector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06344915A JPH06344915A (en) | 1994-12-20 |
| JP2545035B2 true JP2545035B2 (en) | 1996-10-16 |
Family
ID=15782120
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5163859A Expired - Fee Related JP2545035B2 (en) | 1993-06-10 | 1993-06-10 | Train detector |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2545035B2 (en) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5412765A (en) * | 1977-06-29 | 1979-01-30 | Kokusai Electric Co Ltd | Moving body position detector |
-
1993
- 1993-06-10 JP JP5163859A patent/JP2545035B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH06344915A (en) | 1994-12-20 |
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