JP4614754B2 - Railroad crossing security device - Google Patents

Railroad crossing security device Download PDF

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JP4614754B2
JP4614754B2 JP2004359274A JP2004359274A JP4614754B2 JP 4614754 B2 JP4614754 B2 JP 4614754B2 JP 2004359274 A JP2004359274 A JP 2004359274A JP 2004359274 A JP2004359274 A JP 2004359274A JP 4614754 B2 JP4614754 B2 JP 4614754B2
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track circuit
train
atc
alarm
crossing
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JP2006168382A (en
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節 本多
禎一 齋藤
由紀子 原
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Kyosan Electric Manufacturing Co Ltd
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この発明は、列車が走行する軌道に設けられた踏切の警報制御を行う踏切保安装置、特に踏切警報時間の短縮化に関するものである。   The present invention relates to a railroad crossing safety device that performs a railroad crossing warning control provided on a track on which a train travels, and particularly to a reduction in a railroad crossing warning time.

列車が走行する軌道に設けた踏切の制御において、踏切警報機等の警報を開始してから列車の先頭が踏切に到達するまでの時間である警報時間は、列車の運転曲線から十分に踏切を遮断する時間が確保できる地点を警報開始点とし、警報開始点から踏切までの距離を最小時間で走行する時間により求められる。この最小到達時間は、図５に示すように、区間最高速度から求められる。   In the control of railroad crossings provided on the tracks on which the train runs, the alarm time, which is the time from the start of a railroad crossing alarm, etc. until the top of the train reaches the railroad crossing, is sufficiently determined from the train operation curve. The point where the time for blocking can be secured is set as the alarm start point, and the distance from the alarm start point to the railroad crossing is obtained from the time required for traveling in the minimum time. This minimum arrival time is obtained from the section maximum speed as shown in FIG.

そして例えば２組の踏切遮断機がある場合、図６に示すように、警報を開始してから７秒後に進入側の遮断動作を開始し、その後、７秒後に進入側の遮断動作を終了し、進出側の遮断動作を開始し、７秒後に進出側の遮断動作を終了してから２０秒後に列車が踏切に到着することを標準とし、進出側の遮断動作を終了してから列車が踏切に到着するまでの時間は１５秒以上であることが必要とされ、標準警報時間として４１秒、最小警報時間として３６秒が確保できるように警報時間を定めるようにしている。   For example, when there are two sets of level crossing barriers, as shown in FIG. 6, the entrance side shut-off operation is started 7 seconds after the alarm is started, and then the entrance side shut-off operation is terminated after 7 seconds. The start of the advancing side shut-off operation, 7 seconds later, after the advancing side shut-off operation is completed, the train arrives at the railroad crossing 20 seconds later, and after the advancing side shut-off operation ends, the train crosses the railroad crossing It is necessary that the time to arrive at the time is 15 seconds or more, and the alarm time is determined so that 41 seconds can be secured as the standard alarm time and 36 seconds can be secured as the minimum alarm time.

この警報時間の適正化を図り、歩行者や自動車の交通渋滞を防止するため、図５に示すように、例えば急行と緩行の列車種別によって警報開始点の位置を変えたり、あるいは列車の速度を車軸検知器により計測し、列車の速度に応じて警報開始の位置や時機を制御したり、例えば特許文献１に示すように、踏切を中心にして線路を挟んで平行に２本の漏洩伝送路を敷設し、一方の漏洩伝送路からスペクトル拡散信号を放射し、他方の漏洩伝送路で放射されたスペクトル拡散信号を受信し、受信したスペクトル拡散信号により一定の間隔で列車の存在を検知し、この検知結果を距離方向に順番に並べてメモリに蓄積し、蓄積された一連のデータから列車の位置と走行速度等を判定し、判定した列車の位置と速度に基づいて踏切制御の最適時機を算出したりして踏切遮断時間の適正化を図っている。   In order to optimize the warning time and prevent traffic congestion of pedestrians and cars, as shown in FIG. 5, for example, the position of the warning start point is changed depending on the type of express train and slow train, or the speed of the train is changed. Measured by the axle detector, controls the alarm start position and timing according to the speed of the train. For example, as shown in Patent Document 1, two leaky transmission lines are parallel to each other with the railroad track as the center. , Radiate a spread spectrum signal from one leaky transmission line, receive a spread spectrum signal radiated from the other leaky transmission line, detect the presence of a train at regular intervals by the received spread spectrum signal, The detection results are arranged in order in the distance direction and stored in the memory, the train position and traveling speed are determined from the accumulated series of data, and the optimal timing for crossing control is determined based on the determined train position and speed. In and out we are working to optimize the level crossing cut-off time.

しかしながらラッシュ時間帯など運行パターン上、列車を低速で運行している場合は、列車種別により警報開始点の位置を変えたり、車軸検知器等で列車速度を計測して踏切遮断時間の適正化を図っても、ラッシュ時間帯など運行パターン上、列車を低速で運行している場合には、踏切遮断時間を適正にすることは困難であった。   However, if the train is operating at low speed due to operation patterns such as rush hours, the location of the alarm start point may be changed depending on the train type, or the train speed may be measured with an axle detector, etc. Even if it is planned, due to the operation pattern such as rush hours, it is difficult to make the level crossing interruption time appropriate when the train is operating at a low speed.

この問題を解消するため、車軸検知器を踏切制御範囲内に多数設置し、列車速度をきめ細かく検出して踏切遮断時間の適正化を図ると、路線上に多数の踏切がある場合、車軸検知器の設置に膨大な費用が必要になってしまう。   To solve this problem, install many axle detectors within the level crossing control range, detect the train speeds finely, and optimize the level crossing cutoff time. If there are many level crossings on the route, the axle detector A huge amount of money will be required for installation.

また、特許文献１に示すように、線路を挟んで漏洩伝送路を敷設し、漏洩伝送路間の信号の授受により列車の位置と走行速度を求める方法も、設備に多くの費用を必要とするとともに、求めた列車の走行速度から区間最高速度になるように、その区間の最大加速度で加速して走行すると仮定して警報時間を決定しているため、列車の実際の走行速度に最も適した警報時間を決定することは困難であるという短所がある。
特開２００３−５４４１号公報 Moreover, as shown in Patent Document 1, a method of laying a leaky transmission line across a line and obtaining a train position and traveling speed by exchanging signals between the leaky transmission lines also requires a large amount of equipment. At the same time, the warning time is determined on the assumption that the vehicle is accelerated at the maximum acceleration of the section so that the train's traveling speed is the maximum speed of the section. There is a disadvantage that it is difficult to determine the alarm time.
Japanese Patent Laid-Open No. 2003-5441

この発明は、前記短所問題を解消し、既存の設備を利用して列車の実際の走行速度に最も適した警報時間を決定し、踏切遮断時間の適正化を図ることができる踏切保安装置を提供することを目的とするものである。   The present invention provides a railroad crossing safety device that solves the above disadvantages, determines the alarm time most suitable for the actual traveling speed of the train using existing equipment, and can optimize the railroad crossing time. It is intended to do.

この発明の踏切保安装置は、各軌道回路に接続されたＡＴＣ／ＴＤ地上装置と、踏切警報機や踏切遮断機等からなる踏切制御器の動作を制御する踏切制御装置とを有し、ＡＴＣ／ＴＤ地上装置は、各軌道回路に列車が在線することを検知するとともに、情報伝送路から入力する先行列車の走行位置に応じて軌道回路毎のＡＴＣコードを作成して各軌道回路に伝送するとともに、踏切を有する軌道回路から列車進入側の所定区間の各軌道回路に設けられたＡＴＣ／ＴＤ地上装置は作成したＡＴＣコードと列車の在線情報を踏切制御装置にも送り、踏切制御装置は、ＡＴＣコードパターン入力部と列車位置情報入力部と到達時分算出部と警報開始点決定部と警報出力部及び速度制限信号出力部とを有し、ＡＴＣコードパターン入力部は、踏切を有する軌道回路から列車進入側の所定区間の各軌道回路に設けられたＡＴＣ／ＴＤ地上装置で作成した軌道回路毎のＡＴＣコードパターンを入力し、列車位置情報入力部は、踏切を有する軌道回路から列車進入側の所定区間の各軌道回路に設けられた各ＡＴＣ／ＴＤ地上装置から列車位置情報を入力し、到達時分算出部は、踏切を有する軌道回路から列車進入側の所定区間の各軌道回路の列車進入側から踏切までの距離とＡＴＣコードパターン入力部で入力した軌道回路毎のＡＴＣコードパターンで示す許容速度により列車が走行した場合の各軌道回路から踏切まで到達する踏切到達時間をリアルタイムで算出し、警報開始点決定部は、到達時分算出部で算出している各軌道回路からの踏切到達時間とあらかじめ設定された警報時間とを比較して警報開始点となる軌道回路を決定し、警報出力部は、列車位置情報入力部で入力した列車位置情報により列車が警報開始点と決定した軌道回路に進入したことを検知すると踏切制御器と速度制限信号出力部に警報信号を送り、速度制限信号出力部は、警報出力部から警報信号が送られている間、警報開始点と決定した軌道回路から踏切がある軌道回路に接続されたＡＴＣ／ＴＤ地上装置に速度制限信号を送り、ＡＴＣ／ＴＤ地上装置は、速度制限信号が送られている間、作成したＡＴＣコードを保持することを特徴とする。 A railroad crossing safety device according to the present invention includes an ATC / TD ground device connected to each track circuit, and a crossing control device that controls the operation of a crossing controller including a crossing alarm and a crossing breaker. The TD ground device detects the presence of a train on each track circuit, creates an ATC code for each track circuit according to the traveling position of the preceding train input from the information transmission path, and transmits the ATC code to each track circuit. The ATC / TD ground device provided in each track circuit in the predetermined section on the train approach side from the track circuit having a railroad crossing also sends the created ATC code and train presence information to the railroad crossing control device. It has a code pattern input unit and the train position information input unit and the travel time calculating unit and the alarm starting point determining unit and the alarm output unit and the speed limit signal output unit, ATC code pattern input section, have a level crossing Enter the ATC code pattern for each track circuit created from that track circuit at ATC / TD ground device provided in each track circuit a predetermined section of the train entering side, train position information input section from the track circuit with a crossing Train position information is input from each ATC / TD ground device provided in each track circuit of a predetermined section on the train entry side, and the arrival time calculation unit calculates each track of the predetermined section on the train approach side from the track circuit having a crossing. The level crossing arrival time to reach the railroad crossing from each track circuit when the train travels in accordance with the distance from the train approach side to the railroad crossing and the allowable speed indicated by the ATC code pattern for each track circuit input in the ATC code pattern input unit The warning start point determination unit compares the crossing arrival time from each track circuit calculated by the arrival time calculation unit with the preset alarm time. When the track circuit to be the alarm start point is determined and the alarm output unit detects that the train has entered the track circuit determined to be the alarm start point by the train position information input at the train position information input unit, the speed crossing controller and speed An alarm signal is sent to the limit signal output unit, and while the alarm signal is sent from the alarm output unit, the speed limit signal output unit is connected to the track circuit having the crossing from the track circuit determined as the alarm start point. A speed limit signal is sent to the TD ground device, and the ATC / TD ground device holds the created ATC code while the speed limit signal is being sent.

この発明は、列車の速度を制限するＡＴＣコードパターンにより踏切到達時間をリアルタイムで算出し、算出した踏切到達時間を使用して軌道回路単位に警報開始点を変えるとともに、列車が警報開始点と決定した軌道回路に進入したときのＡＴＣコードパターンにより踏切が有る軌道回路まで列車を走行させることにより、列車の実際の走行速度に最も適した踏切警報時間を決定することができ、列車の速度を制限することから安全を確保したうえで踏切遮断時間の適正化を図ることができる。   This invention calculates a railroad crossing arrival time in real time using an ATC code pattern that limits the speed of a train, uses the calculated railroad crossing arrival time to change an alarm start point for each track circuit, and determines that the train is an alarm start point. By making the train run to the track circuit with the crossing according to the ATC code pattern when entering the track circuit, it is possible to determine the railroad crossing warning time most suitable for the actual traveling speed of the train and limit the train speed Therefore, it is possible to optimize the level crossing interruption time while ensuring safety.

また、ＡＴＣコードパターンにより踏切到達時間を算出するから、既存の設備を利用することができ、設置費用を大幅に低減することができる。   Moreover, since the railroad crossing arrival time is calculated from the ATC code pattern, existing facilities can be used, and installation costs can be greatly reduced.

図１はこの発明の踏切保安装置の構成を示すブロック図である。図に示すように、踏切１において列車の運転と道路交通との間の安全を保つ踏切保安装置は、各軌道回路１Ｔ〜ｎＴの境界に接続され、各軌道回路１Ｔ〜ｎＴに列車２が在線することを検知するとともに、ＬＡＮ３から入力する先行列車の走行位置に応じて後続する軌道回路毎のＡＴＣコードを作成して各軌道回路１Ｔ〜ｎＴに伝送するＡＴＣ／ＴＤ地上装置４ａ〜４ｎと、踏切警報機や踏切遮断機等の踏切制御器５の動作を制御する踏切制御装置６を有する。踏切１から所定区間の間に設けられたＡＴＣ／ＴＤ地上装置４ａ〜４ｎは作成したＡＴＣコードと列車の在線情報を踏切制御装置６にも送る。 FIG. 1 is a block diagram showing the structure of a railroad crossing safety device according to the present invention. As shown in the figure, a railroad crossing safety device that maintains safety between train operation and road traffic at a railroad crossing 1 is connected to the boundary of each track circuit 1T to nT, and a train 2 is present on each track circuit 1T to nT. thereby detecting that the ATC / TD ground device 4a~4n transmitting by creating ATC code for each subsequent track circuit in accordance with the traveling position of the preceding train input from LAN3 each track circuit 1T～nT, A crossing control device 6 that controls the operation of a crossing controller 5 such as a crossing alarm or a crossing breaker is provided. The ATC / TD ground devices 4a to 4n provided between the level crossing 1 and a predetermined section also send the created ATC code and train presence information to the level crossing control device 6.

踏切制御装置６は、図２のブロック図に示すように、ＡＴＣコードパターン入力部７と列車位置情報入力部８と到達時分算出部９と警報開始点決定部１０と警報出力部１１及び速度制限信号出力部１２とを有する。ＡＴＣコードパターン入力部７はＡＴＣ／ＴＤ地上装置４ａ〜４ｎで作成した軌道回路毎のＡＴＣコードパターンを入力する。列車位置情報入力部８は各ＡＴＣ／ＴＤ地上装置４ａ〜４ｎから列車位置情報を入力する。到達時分算出部９はＡＴＣコードパターン入力部７で入力した軌道回路毎のＡＴＣコードパターンにより列車２ａが走行した場合の各軌道回路から踏切１まで到達する踏切到達時間をリアルタイムで算出する。警報開始点決定部１０は到達時分算出部９で算出している各軌道回路からの踏切到達時間とあらかじめ設定された警報時間とを比較して警報開始点となる軌道回路を決定する。警報出力部１１は、列車位置情報入力部８で入力した列車位置情報により列車２が警報開始点と決定した軌道回路に進入したことを検知すると踏切制御器５に警報信号を出力して踏切警報を開始させるとともに、速度制限信号出力部１２に警報信号を送る。速度制限信号出力部１２は警報信号が送られると、警報開始点と決定した軌道回路から踏切１がある軌道回路に接続されたＡＴＣ／ＴＤ地上装置に速度制限信号を送る。速度制限信号が送られたＡＴＣ／ＴＤ地上装置はそのとき作成したＡＴＣコードを速度制限信号が解除するまで保持する。   As shown in the block diagram of FIG. 2, the level crossing control device 6 includes an ATC code pattern input unit 7, a train position information input unit 8, an arrival time calculation unit 9, an alarm start point determination unit 10, an alarm output unit 11, and a speed. And a limit signal output unit 12. The ATC code pattern input unit 7 inputs the ATC code pattern for each track circuit created by the ATC / TD ground devices 4a to 4n. Train position information input unit 8 inputs train position information from each ATC / TD ground device 4a-4n. The arrival time calculation unit 9 calculates in real time the level crossing arrival time to reach the level crossing 1 from each track circuit when the train 2a travels by the ATC code pattern for each track circuit input by the ATC code pattern input unit 7. The alarm start point determination unit 10 compares the crossing arrival time from each track circuit calculated by the arrival time calculation unit 9 with a preset alarm time to determine a track circuit that becomes the alarm start point. When the alarm output unit 11 detects that the train 2 has entered the track circuit determined as the alarm start point based on the train position information input by the train position information input unit 8, the alarm output unit 11 outputs an alarm signal to the level crossing controller 5 to output a level crossing alarm. And an alarm signal is sent to the speed limit signal output unit 12. When an alarm signal is sent, the speed limit signal output unit 12 sends a speed limit signal from the track circuit determined as the alarm start point to the ATC / TD ground device connected to the track circuit where the level crossing 1 is located. The ATC / TD ground device to which the speed limit signal is sent holds the ATC code created at that time until the speed limit signal is released.

この踏切制御装置６による踏切制御を図３のフローチャートと図４の模式図を参照して説明する。   The level crossing control by the level crossing control device 6 will be described with reference to the flowchart of FIG. 3 and the schematic diagram of FIG.

踏切１から所定区間の間に設けられたＡＴＣ／ＴＤ地上装置４ａ〜４ｎは先行列車２の在線位置に応じてＡＴＣコードを作成して各軌道回路に送信するとともに踏切制御装置６に送る。踏切制御装置６のＡＴＣコードパターン入力部７は、ＡＴＣ／ＴＤ地上装置４ａ〜４ｎから送られた軌道回路毎のＡＴＣコードパターンを、常時、入力して到達時分算出部９に送る（ステップＳ１）。例えば図４（ａ）に示すように、踏切１を有する軌道回路８Ｔより列車進出側の軌道回路９Ｔ，１０Ｔに列車２が在線しない場合は、軌道回路１Ｔ〜１０ＴのＡＴＣコードとして例えば８０信号が連続したＡＴＣコードパターン１３ａを入力する。このＡＴＣコードパターン１３ａにより先行列車２ａが走行し、図４（ｂ）に示すように、踏切１を有する軌道回路８Ｔより列車進出側の軌道回路１０Ｔに先行列車２ａは在線すると、軌道回路１０Ｔより列車進入側の軌道回路８Ｔで後続列車２ｂを停止させるために減速制御するＡＴＣコードパターン１３ｂを入力する。さらに先行列車２ａが走行して、図４（ｃ）に示すように、軌道回路１０Ｔから進出した場合、軌道回路９Ｔで後続列車２ｂを停止させるために減速制御するＡＴＣコードパターン１３ｃを入力する。 The ATC / TD ground devices 4a to 4n provided between the railroad crossing 1 and a predetermined section create an ATC code according to the on-line position of the preceding train 2, transmit it to each track circuit, and send it to the railroad crossing control device 6. The ATC code pattern input unit 7 of the level crossing control device 6 always inputs the ATC code pattern for each track circuit sent from the ATC / TD ground devices 4a to 4n and sends it to the arrival time calculation unit 9 (step S1). ). For example, as shown in FIG. 4A, when the train 2 is not present in the track circuits 9T and 10T on the train advance side from the track circuit 8T having the railroad crossing 1, for example, 80 signals are used as the ATC codes of the track circuits 1T to 10T. A continuous ATC code pattern 13a is input. When the preceding train 2a travels by this ATC code pattern 13a and the preceding train 2a is on the track circuit 10T on the train advance side from the track circuit 8T having the crossing 1 as shown in FIG. 4B, the track circuit 10T The ATC code pattern 13b for deceleration control is input to stop the succeeding train 2b in the track circuit 8T on the train entry side. Further, when the preceding train 2a travels and advances from the track circuit 10T as shown in FIG. 4C, an ATC code pattern 13c for deceleration control is input to stop the succeeding train 2b by the track circuit 9T.

到達時分算出部９は、踏切１を有する軌道回路８Ｔより列車進入側の各軌道回路１Ｔ〜７Ｔの列車進入側から踏切１までの距離と入力したＡＴＣコードパターン１３で示す各軌道回路１Ｔ〜７Ｔの許容速度により各列車２ａ，２ｂが走行した場合の、各軌道回路１Ｔ〜７Ｔから踏切１まで到達する踏切到達時間を算出する（ステップＳ２）。例えば図４（ａ）に示すように、８０信号が連続したＡＴＣコードパターン１３ａを入力した場合は、各軌道回路１Ｔ〜７Ｔの列車進入側から踏切１までの距離とＡＴＣコードパターン１３ａで示す許容速度である８０信号により各軌道回路１Ｔ〜７Ｔからの踏切到達時間、例えば軌道回路１Ｔからの踏切到達時間をＴ１、軌道回路２Ｔからの踏切到達時間をＴ２、軌道回路３Ｔからの踏切到達時間をＴ３等と算出して警報開始点決定部１０に送る。また、図４（ｂ）に示すように、軌道回路８Ｔで後続列車２ｂを停止させるために減速制御するＡＴＣコードパターン１３ｂを入力した場合や、図４（ｃ）に示すように、軌道回路９Ｔで後続列車２ｂを停止させるために減速制御するＡＴＣコードパターン１３ｃを入力した場合も、同様にして、各軌道回路１Ｔ〜７Ｔの列車進入側から踏切１までの距離とＡＴＣコードパターン１３ｂ，１３ｃで示す各軌道回路１Ｔ〜７Ｔの許容速度により各軌道回路１Ｔ〜７Ｔからの踏切到達時間を算出する。 The arrival time calculation unit 9 includes the distance from the train approach side to the railroad crossing 1 of each track circuit 1T to 7T on the train approach side from the track circuit 8T having the railroad crossing 1 and the track circuits 1T to 13T indicated by the input ATC code pattern 13. A level crossing arrival time to reach the level crossing 1 from each track circuit 1T to 7T when each train 2a, 2b travels at an allowable speed of 7T is calculated (step S2). For example, as shown in FIG. 4A, when an ATC code pattern 13a in which 80 signals are continuous is input, the distance from the train approach side to the railroad crossing 1 of each track circuit 1T to 7T and the tolerance indicated by the ATC code pattern 13a The level crossing arrival time from each of the track circuits 1T to 7T, for example, the level crossing arrival time from the track circuit 1T is T1, the level crossing arrival time from the track circuit 2T is T2, and the level crossing arrival time from the track circuit 3T is determined by the 80 signal which is the speed. T3 and the like are calculated and sent to the alarm start point determination unit 10. Also, as shown in FIG. 4 (b), when an ATC code pattern 13b for deceleration control is input to stop the following train 2b in the track circuit 8T, or as shown in FIG. 4 (c), the track circuit 9T In the same way, when the ATC code pattern 13c for deceleration control is input to stop the following train 2b , the distance from the train approach side to the railroad crossing 1 of each track circuit 1T to 7T and the ATC code patterns 13b and 13c are similarly used. The level crossing arrival time from each track circuit 1T to 7T is calculated from the allowable speed of each track circuit 1T to 7T shown.

警報開始点決定部１０は、送られた各軌道回路１Ｔ〜７Ｔからの踏切到着時間とあらかじめ設定された警報時間Ｔｃとを比較して警報開始点となる軌道回路を決定して警報出力部１１に送る（ステップＳ３）。例えば図４（ａ）に示す場合、警報時間Ｔｃに対して軌道回路２Ｔからの踏切到達時間Ｔ２と軌道回路３Ｔからの踏切到達時間Ｔ３とが、Ｔ２＞Ｔｃ＞Ｔ３の関係にあるとき、軌道回路２Ｔの列車進入側を警報開始点とし、図４（ｂ）に示す場合は、警報時間Ｔｃに対して軌道回路４Ｔからの踏切到達時間Ｔ５と軌道回路５Ｔからの踏切到達時間Ｔ６とが、Ｔ５＞Ｔｃ＞Ｔ６の関係にあるとき、軌道回路４Ｔの列車進入側を警報開始点とし、図４（ｃ）に示す場合、警報時間Ｔｃに対して軌道回路３Ｔからの踏切到達時間Ｔ８と軌道回路４Ｔからの踏切到達時間Ｔ９とが、Ｔ８＞Ｔｃ＞Ｔ９の関係にあるとき、軌道回路３Ｔの列車進入側を警報開始点とする。   The alarm start point determination unit 10 compares the sent railroad crossing arrival time from each of the track circuits 1T to 7T with a preset alarm time Tc to determine a track circuit serving as an alarm start point and outputs an alarm output unit 11 (Step S3). For example, as shown in FIG. 4A, when the railroad crossing arrival time T2 from the track circuit 2T and the railroad crossing arrival time T3 from the track circuit 3T have a relationship of T2> Tc> T3 with respect to the alarm time Tc, In the case where the train entry side of the circuit 2T is the alarm start point and shown in FIG. 4B, the level crossing arrival time T5 from the track circuit 4T and the level crossing arrival time T6 from the track circuit 5T with respect to the alarm time Tc When T5> Tc> T6, the train entry side of the track circuit 4T is set as the alarm start point. In the case shown in FIG. 4C, the railroad crossing arrival time T8 from the track circuit 3T and the track in the case of the alarm time Tc. When the railroad crossing arrival time T9 from the circuit 4T is in a relationship of T8> Tc> T9, the train entry side of the track circuit 3T is set as an alarm start point.

このＡＴＣコードパターンの入力から警報開始点の決定までの処理を、列車位置情報入力部８で入力した列車位置情報により列車２が警報開始点と決定された軌道回路に進入するまでリアルタイムで繰り返す（ステップＳ４，Ｓ１〜Ｓ３）。   The process from the input of the ATC code pattern to the determination of the alarm start point is repeated in real time until the train 2 enters the track circuit determined as the alarm start point by the train position information input by the train position information input unit 8 ( Steps S4, S1 to S3).

警報出力部１１は、列車位置情報入力部８で入力した列車位置情報により列車２が警報開始点と決定した軌道回路に進入したことを検知すると（ステップＳ４）、踏切制御器５と速度制限信号出力部１２に警報信号を出力する。踏切制御器５は警報信号が送られると踏切制御を開始する（ステップＳ５）。速度制限信号出力部１２は警報信号が送られると、警報開始点と決定した軌道回路から踏切１がある軌道回路までに接続された各ＡＴＣ／ＴＤ地上装置４に速度制限信号を送り、そのときＡＴＣ／ＴＤ地上装置４で生成したＡＴＣコードを保持させ，列車２が警報開始点と決定した軌道回路に進入したときのＡＴＣコードパターンにより踏切１が有る軌道回路８Ｔまで列車２を走行させる（ステップＳ６）。   When the alarm output unit 11 detects that the train 2 has entered the track circuit determined as the alarm start point based on the train position information input by the train position information input unit 8 (step S4), the crossing controller 5 and the speed limit signal An alarm signal is output to the output unit 12. The level crossing controller 5 starts the level crossing control when an alarm signal is sent (step S5). When the warning signal is sent, the speed limit signal output unit 12 sends a speed limit signal to each ATC / TD ground device 4 connected from the track circuit determined as the alarm start point to the track circuit where the level crossing 1 is located. The ATC code generated by the ATC / TD ground device 4 is held, and the train 2 travels to the track circuit 8T having the crossing 1 by the ATC code pattern when the train 2 enters the track circuit determined as the alarm start point (step) S6).

警報出力部１１は、列車位置情報入力部８で入力した列車位置情報により列車２が踏切１の警報終止点を通過したことを検知すると（ステップＳ７）、踏切制御器５と速度制限信号出力部１２に送っている警報信号を解除する。警報信号が解除されると踏切制御器５は踏切制御を終了し、速度制限信号出力部１２は各ＡＴＣ／ＴＤ地上装置４に送っていた速度制限信号を解除する（ステップＳ８）。   When the alarm output unit 11 detects that the train 2 has passed the alarm end point of the crossing 1 based on the train position information input by the train position information input unit 8 (step S7), the crossing controller 5 and the speed limit signal output unit The alarm signal sent to 12 is released. When the warning signal is canceled, the level crossing controller 5 ends the level crossing control, and the speed limit signal output unit 12 cancels the speed limit signal sent to each ATC / TD ground device 4 (step S8).

このように列車２の速度を制限するＡＴＣコードパターンにより踏切到達時間をリアルタイムで算出し、算出した踏切到達時間を使用して軌道回路単位に警報開始点を変えるとともに、列車２が警報開始点と決定した軌道回路に進入したときのＡＴＣコードパターンにより踏切１が有る軌道回路８Ｔまで列車２を走行させることにより、列車２の実際の走行速度に最も適した踏切警報時間を決定して踏切遮断時間の適正化を図ることができる。   In this way, the crossing arrival time is calculated in real time by the ATC code pattern that limits the speed of the train 2, and the alarm start point is changed for each track circuit using the calculated crossing arrival time. By traveling the train 2 to the track circuit 8T having the crossing 1 according to the ATC code pattern when entering the determined track circuit, the level crossing warning time most suitable for the actual traveling speed of the train 2 is determined and the crossing cut-off time is determined. Can be optimized.

また、ＡＴＣコードパターンにより踏切到達時間を算出するから、既存の設備を使用すれば良く、設置費用を大幅に低減することができる。   Moreover, since the level crossing arrival time is calculated from the ATC code pattern, it is sufficient to use existing equipment, and the installation cost can be greatly reduced.

この発明の踏切保安装置の構成を示すブロック図である。It is a block diagram which shows the structure of the level crossing security apparatus of this invention. 踏切制御装置の構成を示すブロック図である。It is a block diagram which shows the structure of a level crossing control apparatus. 踏切制御動作を示すフローチャートである。It is a flowchart which shows a level crossing control operation. ＡＴＣコードパターンに応じた警報開始点を示す模式図である。It is a schematic diagram which shows the alarm start point according to an ATC code pattern. 警報時間の算出方法及び列車種別による警報開始点を示す模式図である。It is a schematic diagram which shows the alarm start point by the calculation method of an alarm time, and a train classification. 踏切制御動作を示すタイムチャートである。It is a time chart which shows a level crossing control operation.

符号の説明Explanation of symbols

１；踏切、２；列車、３；ＬＡＮ、４；ＡＴＣ／ＴＤ地上装置、５；踏切制御器、
６；踏切制御装置、７；ＡＴＣコードパターン入力部、８；列車位置情報入力部、
９；到達時分算出部、１０；警報開始点決定部、１１；警報出力部、
１２；速度制限信号出力部、１３；ＡＴＣコードパターン。 1; railroad crossing, 2; train, 3; LAN, 4; ATC / TD ground device, 5; railroad crossing controller,
6; Railroad crossing control device, 7; ATC code pattern input unit, 8; Train position information input unit,
9; arrival time calculation unit, 10; alarm start point determination unit, 11; alarm output unit,
12: Speed limit signal output unit, 13: ATC code pattern.

Claims (1)

各軌道回路に接続されたＡＴＣ／ＴＤ地上装置と、踏切警報機や踏切遮断機等からなる踏切制御器の動作を制御する踏切制御装置とを有し、
前記ＡＴＣ／ＴＤ地上装置は、各軌道回路に列車が在線することを検知するとともに、情報伝送路から入力する先行列車の走行位置に応じて軌道回路毎のＡＴＣコードを作成して各軌道回路に伝送するとともに、踏切を有する軌道回路から列車進入側の所定区間の各軌道回路に設けられたＡＴＣ／ＴＤ地上装置は作成したＡＴＣコードと列車の在線情報を踏切制御装置にも送り、
前記踏切制御装置は、ＡＴＣコードパターン入力部と列車位置情報入力部と到達時分算出部と警報開始点決定部と警報出力部及び速度制限信号出力部とを有し、
前記ＡＴＣコードパターン入力部は、踏切を有する軌道回路から列車進入側の所定区間の各軌道回路に設けられたＡＴＣ／ＴＤ地上装置で作成した軌道回路毎のＡＴＣコードパターンを入力し、
前記列車位置情報入力部は、踏切を有する軌道回路から列車進入側の所定区間の各軌道回路に設けられた各ＡＴＣ／ＴＤ地上装置から列車位置情報を入力し、
前記到達時分算出部は、踏切を有する軌道回路から列車進入側の所定区間の各軌道回路の列車進入側から踏切までの距離とＡＴＣコードパターン入力部で入力した軌道回路毎のＡＴＣコードパターンで示す許容速度により列車が走行した場合の各軌道回路から踏切まで到達する踏切到達時間をリアルタイムで算出し、
前記警報開始点決定部は、到達時分算出部で算出している各軌道回路からの踏切到達時間とあらかじめ設定された警報時間とを比較して警報開始点となる軌道回路を決定し、
前記警報出力部は、列車位置情報入力部で入力した列車位置情報により列車が警報開始点と決定した軌道回路に進入したことを検知すると前記踏切制御器と前記速度制限信号出力部に警報信号を送り、
前記速度制限信号出力部は、警報出力部から警報信号が送られている間、警報開始点と決定した軌道回路から踏切がある軌道回路に接続されたＡＴＣ／ＴＤ地上装置に速度制限信号を送り、
前記ＡＴＣ／ＴＤ地上装置は、速度制限信号が送られている間、作成したＡＴＣコードを保持することを特徴とする踏切保安装置。 A level crossing control device for controlling the operation of a level crossing controller composed of an ATC / TD ground device connected to each track circuit and a level crossing alarm or a level crossing breaker,
The ATC / TD ground device detects the presence of a train on each track circuit and creates an ATC code for each track circuit according to the traveling position of the preceding train input from the information transmission path. The ATC / TD ground device provided in each track circuit in a predetermined section on the train approach side from the track circuit having a railroad crossing also sends the created ATC code and train presence information to the railroad crossing control device,
The railroad crossing control device includes an ATC code pattern input unit, a train position information input unit, an arrival time calculation unit, an alarm start point determination unit, an alarm output unit, and a speed limit signal output unit,
The ATC code pattern input unit inputs an ATC code pattern for each track circuit created by an ATC / TD ground device provided in each track circuit of a predetermined section on the train approach side from a track circuit having a railroad crossing ,
The train position information input unit inputs train position information from each ATC / TD ground device provided in each track circuit in a predetermined section on the train approach side from a track circuit having a railroad crossing ,
The arrival time calculation unit is a distance from the train entry side to the railroad crossing of each track circuit in a predetermined section on the train entry side from the track circuit having a railroad crossing and an ATC code pattern for each track circuit input by the ATC code pattern input unit. Calculate the railroad crossing arrival time to reach the railroad crossing from each track circuit when the train travels at the allowable speed shown in real time,
The warning start point determination unit determines a track circuit as a warning start point by comparing a crossing arrival time from each track circuit calculated by the arrival time calculation unit with a preset alarm time,
When the alarm output unit detects that the train has entered the track circuit determined as the alarm start point based on the train position information input by the train position information input unit, an alarm signal is sent to the level crossing controller and the speed limit signal output unit. Send,
The speed limit signal output unit sends a speed limit signal to the ATC / TD ground device connected to the track circuit having the crossing from the track circuit determined as the alarm start point while the alarm signal is transmitted from the alarm output unit. ,
The ATC / TD ground device holds the created ATC code while the speed limit signal is being sent.
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US8660215B2 (en) 2010-03-16 2014-02-25 Siemens Rail Automation Corporation Decoding algorithm for frequency shift key communications
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JPH02109773A (en) * 1988-10-19 1990-04-23 Railway Technical Res Inst Railroad crossing control method by wireless command
JPH0637046U (en) * 1992-10-26 1994-05-17 株式会社京三製作所 Railroad crossing control device
JPH1178896A (en) * 1997-09-01 1999-03-23 Tokyo Kiyuukou Dentetsu Kk Railroad crossing control device

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JPS62173369A (en) * 1986-01-25 1987-07-30 日本信号株式会社 Railroad crossing controller
JPH02109773A (en) * 1988-10-19 1990-04-23 Railway Technical Res Inst Railroad crossing control method by wireless command
JPH0637046U (en) * 1992-10-26 1994-05-17 株式会社京三製作所 Railroad crossing control device
JPH1178896A (en) * 1997-09-01 1999-03-23 Tokyo Kiyuukou Dentetsu Kk Railroad crossing control device

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