JP2010215167A - Train position detecting device - Google Patents

Train position detecting device Download PDF

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JP2010215167A
JP2010215167A JP2009066365A JP2009066365A JP2010215167A JP 2010215167 A JP2010215167 A JP 2010215167A JP 2009066365 A JP2009066365 A JP 2009066365A JP 2009066365 A JP2009066365 A JP 2009066365A JP 2010215167 A JP2010215167 A JP 2010215167A
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antenna coil
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JP4931951B2 (en
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Hiroshi Tokuhashi
博 徳橋
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Kyosan Electric Manufacturing Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To easily adjust a fixed position determining range for detecting whether a train exists at a fixed position or not. <P>SOLUTION: In the train position detecting device, a power wave receiving antenna coil 10b for a just position and a just position receiving portion 16b have high power receiving response characteristics as compared with ones for determining a short position and an over position. The receiving level Lb of the power wave receiving antenna coil 10b is set in receiving sensitivity and adjusted about necessary gain so as to intersect the receiving level Lc of the power wave receiving antenna coils 10a, 10b for determining the short position and the over position near a peak value. When performing readjustment on the spot after equipment is installed in a plurality of different stations, the gain of the just position receiving portion 16b is adjusted, and an intersection point A of the receiving level Lb and a receiving level La and the intersection point B of the receiving level Lb and the receiving level Lc are moved in a lateral direction near the peak value of the receiving levels La, Lc, thereby easily adjusting the fixed position determining range. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

この発明は、列車が駅の定位置判定範囲内に在線しているか否を検知する列車位置検出装置、特に検知精度の向上に関するものである。   The present invention relates to a train position detection device that detects whether or not a train is present within a fixed position determination range of a station, and particularly relates to an improvement in detection accuracy.

列車の制御システムは自動列車制御装置（以下、ＡＴＣ装置という）と自動列車運転制御装置（以下、ＡＴＯ装置という）を利用して運転操作等を自動化するとともに安全度の向上が図られている。ＡＴＣ装置を利用した運転方式では、軌道回路や軌道に沿って閉塞区間毎に設けたＡＴＣル−プにＡＴＣ地上装置から送られたＡＴＣ信号を列車の先頭車両に設けた受電器やＡＴＣアンテナで受信し、受信したＡＴＣ信号に基づき列車の速度を自動的に制限速度以下に制御している。このＡＴＣ装置として、近年は、多くの情報を伝送することができるデジタル式ＡＴＣ装置が採用されている。このデジタル式ＡＴＣ装置を採用することにより多現示化，多機能化が可能になり、速度制御以外の他の機能が実現可能となってきている。   The train control system uses an automatic train control device (hereinafter referred to as an ATC device) and an automatic train operation control device (hereinafter referred to as an ATO device) to automate driving operations and improve safety. In the driving method using the ATC device, the ATC signal sent from the ATC ground device to the ATC loop provided for each block section along the track circuit or track is received by the power receiver or ATC antenna provided in the head vehicle of the train. The train speed is automatically controlled below the speed limit based on the received ATC signal. In recent years, a digital ATC device capable of transmitting a large amount of information has been adopted as the ATC device. By adopting this digital ATC device, multiple indications and multiple functions can be realized, and functions other than speed control can be realized.

また、列車の定速度制御や定位置停止，ドア開閉などの運転操作を自動的に制御するデジタル式ＡＴＯ装置を採用することにより多機能化が可能になり、速度制御以外の他の機能が実現可能となっている。この列車を定位置に停止させるために、トランスポンダを利用した列車の位置検出装置が特許文献１や特許文献２及び特許文献３等に開示されている。   In addition, by adopting a digital ATO device that automatically controls the operation of trains such as constant speed control, fixed position stop, and door opening / closing, multi-functionality is possible, and functions other than speed control are realized. It is possible. In order to stop the train at a fixed position, a train position detection device using a transponder is disclosed in Patent Literature 1, Patent Literature 2, Patent Literature 3, and the like.

特許文献１に示された列車位置検出装置は、地上子に、情報波受信用アンテナコイルとは別に列車の進行方向に沿ってショート位置判定用電力波受信アンテナコイルとジャスト位置判定用電力波受信アンテナコイルとオーバ位置判定用電力波受信アンテナコイルの３つの電力波受信アンテナコイルを配置し、車上子から送信している電力波を各電力波受信アンテナコイルで受信したときの受信レベルが閾値を超えているか否により列車の停止位置を判断し、ショート位置判定用電力波受信アンテナコイルの受信レベルだけが閾値を超えている場合は、列車がショート位置にあると判定し、ジャスト位置判定用電力波受信アンテナコイルの受信レベルだけが閾値を超えている場合は、列車がジャスト位置にあると判定し、オーバ位置判定用電力波受信アンテナコイルの受信レベルだけが閾値を超えている場合は、列車がオーバ位置にあると判定している。   The train position detection device disclosed in Patent Literature 1 receives a power wave receiving antenna coil for short position determination and a power wave receiving antenna for just position determination along the traveling direction of the train separately from the information wave receiving antenna coil. Three power wave receiving antenna coils, an antenna coil and an over position determination power wave receiving antenna coil, are arranged, and the reception level when each power wave receiving antenna coil receives a power wave transmitted from the vehicle top is a threshold value. The train's stop position is determined based on whether or not it exceeds, and if only the reception level of the power wave receiving antenna coil for short position determination exceeds the threshold value, it is determined that the train is in the short position and for the just position determination. If only the reception level of the power wave receiving antenna coil exceeds the threshold, it is determined that the train is in the just position, and the power for over position determination is determined. If only reception level of the antenna coil exceeds the threshold, the train is determined to be in the over position.

また、特許文献２に示された列車位置検出装置は、前記３つの電力波受信アンテナコイルの受信レベルが閾値を超えているか否により列車の停止位置を判定するのではなく、地上子は、列車の進行方向に沿って電力波受信応動特性が一定の３個の電力波受信アンテナコイルを配置し、図４に示すように、ショート位置判定用の電力波受信アンテナコイルの電力波受信応動特性Ｌａとジャスト位置判定用の電力波受信アンテナコイルの電力波受信応動特性Ｌｂの交点Ａと、ジャスト位置判定用の電力波受信アンテナコイルの電力波受信応動特性Ｌｂとオーバ位置判定用の電力波受信アンテナコイルの電力波受信応動特性Ｌｃの交点Ｂとの間を定位置判定範囲として、車上子が送信する電力波の受信レベルが、車上子の通常起こり得る範囲内で物理的、電気的に変動した場合でも、２つの交点間の距離変動が定位置判定範囲に比較して極めて小さいことを利用して定位置判定範囲の判定精度を向上させるようにしている。   In addition, the train position detection device disclosed in Patent Document 2 does not determine the stop position of the train based on whether the reception level of the three power wave receiving antenna coils exceeds a threshold value. The three power wave receiving antenna coils having a constant power wave receiving responsive characteristic are arranged along the traveling direction of the power wave receiving responsive characteristic La of the power wave receiving antenna coil for determining the short position as shown in FIG. And the power wave receiving response characteristic Lb of the power wave receiving antenna coil for just position determination, and the power wave receiving response characteristic Lb of the power wave receiving antenna coil for just position determination and the power wave receiving antenna for over position determination The position of the power wave transmitted by the vehicle upper element is within the range where the vehicle upper arm can normally occur, with the position between the intersection B of the power wave reception responsive characteristic Lc of the coil as the fixed position determination range. Specifically, even electrically case of change, the distance variation between the two points of intersection are to improve the determination accuracy of the position determination range by utilizing the extremely small compared to the position determination range.

特許文献３に示された列車位置検出装置は、車上子から制御情報用の情報波と位置検出するための電力波を別個に送信することを避けるために制御情報用の情報波を車両検出用の情報波として共用し、ショート位置判定用アンテナコイルとジャスト位置判定用アンテナコイルの応動特性上の交点と、ジャスト位置判定用アンテナコイルとオーバ位置判定用アンテナコイルの応動特性上の交点との間を定位置判定範囲としている。   The train position detection device disclosed in Patent Literature 3 detects a control information information wave from a vehicle upper body and detects a control information information wave in order to avoid separately transmitting a power wave for position detection. As an information wave for use, the intersection on the response characteristics of the short position determination antenna coil and the just position determination antenna coil and the intersection on the response characteristics of the just position determination antenna coil and the over position determination antenna coil The interval is the fixed position determination range.

特許文献２に示すように、３つの電力波受信アンテナコイルの受信レベルの交点検知により定位置判定範囲を検出している場合、３つの電力波受信アンテナコイルは、それぞれ接続された受信回路の使用電磁環境条件の下での雑音レベルを考慮した受信感度以上で、電力波受信応動特性上の交点を構成することを条件としている。   As shown in Patent Document 2, when the fixed position determination range is detected by detecting the intersection of the reception levels of the three power wave receiving antenna coils, the three power wave receiving antenna coils are used by the connected receiving circuits, respectively. The condition is that the intersection on the power wave reception response characteristic is configured to be higher than the reception sensitivity considering the noise level under electromagnetic environment conditions.

また、３つの電力波受信アンテナコイルが車上子に対して可能な限り独立した電気的性能を確保するためには、相互誘導の影響を抑え込む必要があり、そのために３つの電力波受信アンテナコイルは物理的に離隔して配置する必要がある。このように３つの電力波受信アンテナコイルを物理的に離隔することにより、電力波受信応動特性上の交点は、各電力波受信アンテナコイルに接続された受信回路の受信感度に近づき、点制御システムにおける電力波受信応動特性上の傾きの大きい、すなわち、受信感度変化に対する距離の変化が小さい範囲になるため、定位置判定範囲の調整範囲が狭くなるという問題を有している。   Further, in order to ensure that the three power wave receiving antenna coils have as independent electrical performance as possible with respect to the vehicle upper arm, it is necessary to suppress the influence of mutual induction. Need to be physically separated. By physically separating the three power wave receiving antenna coils in this way, the intersection on the power wave receiving response characteristics approaches the receiving sensitivity of the receiving circuit connected to each power wave receiving antenna coil, and the point control system Has a large slope on the power wave reception response characteristic, that is, a range in which a change in distance with respect to a change in reception sensitivity is in a small range.

また、この状況では、開発段階の性能と実使用の電磁環境条件の違い、あるいは、地上子のケーブル長の違いによるレベルダイヤ上の調整範囲も狭いものになり、車両編成に応じて複数台設置するようなシステムにおいては地上子が設置される電磁環境条件別、あるいは地上子のケーブル長別に種類を増やして対応しなければならなかった。   In this situation, the adjustment range on the level diagram is narrow due to differences in performance at the development stage and electromagnetic environment conditions in actual use, or differences in the cable length of the ground unit, and multiple units are installed according to the vehicle organization. In such a system, it has been necessary to increase the number of types according to the electromagnetic environment conditions where the ground unit is installed or the length of the ground unit cable.

また、特許文献３に示すように、制御情報用の情報波を車両検出用の情報波として共用する場合、情報波は電力波に比較して１０倍以上高い周波数を使用しており、送信電力に関する電波法の規制に対する余裕が少ないため送信電力波は規制され、適用電磁環境下の雑音レベルを考慮したなかで伝送品質を確保するために必要なＳ／Ｎを確保した受信側装置の受信感度以上で、車上子の移動に伴う情報波の受信応動特性上のレベル変化は限られてしまう。この限られた狭いレベル変化のなかで物理的に分離したアンテナコイルの交点検出を実現するためには、各アンテナコイルを近接して配置しなければならない。このように近接して配置したアンテナコイルは車上子を含めた相互誘導により影響を考慮する必要があり、さらにサイドローブの影響も考慮しなければならない。そのため、特許文献３に示すように、物理的に分離された情報受信アンテナコイルが電気的に独立した受信応動特性を有することを前提条件としているシステム構成には適合できない。   Further, as shown in Patent Document 3, when an information wave for control information is shared as an information wave for vehicle detection, the information wave uses a frequency 10 times higher than that of a power wave, and transmission power The transmission power wave is regulated because there is little margin for the regulations of the Radio Law, and the reception sensitivity of the receiving side device that secures the S / N necessary to ensure the transmission quality in consideration of the noise level in the applicable electromagnetic environment As described above, the level change in the reception response characteristic of the information wave accompanying the movement of the vehicle upper limit is limited. In order to realize intersection detection of physically separated antenna coils within this limited narrow level change, the antenna coils must be arranged close to each other. Thus, it is necessary to consider the influence of the antenna coils arranged close to each other by mutual induction including the vehicle upper element, and also consider the influence of side lobes. Therefore, as shown in Patent Document 3, it cannot be adapted to a system configuration on the precondition that a physically separated information receiving antenna coil has an electrically independent reception response characteristic.

また、情報波の受信応動特性上の交点は、同じく受信応動特性上のピークレベルに比較して低いため、受信感度とピークレベルの差が小さい情報波の交点付近では地上子と車上子が結合中に実施している情報伝送について必要な伝送品質を確保するためのＳ／Ｎの確保が困難であるという問題を有している。   Also, since the intersection on the reception response characteristic of the information wave is lower than the peak level on the reception response characteristic, the ground element and the vehicle element are near the intersection of the information wave where the difference between the reception sensitivity and the peak level is small. There is a problem that it is difficult to secure S / N for ensuring the necessary transmission quality for the information transmission performed during the combination.

この発明は、このような問題を解消し、列車が駅の定位置に在線しているか否を検出するための定位置判定範囲を容易に調整することができるとともに列車が定位置判定範囲に在線しているか否を高精度に検出することができる列車位置検出装置を提供することを目的とするものである。   The present invention solves such a problem, can easily adjust the fixed position determination range for detecting whether or not the train is at the fixed position of the station, and the train is in the fixed position determination range It is an object of the present invention to provide a train position detection device that can detect whether or not the vehicle is in high accuracy.

この発明の列車位置検出装置は、列車に搭載された車上子から送信される電力波を受信するトランスポンダを利用した地上子及び地上装置を有する列車位置検出装置であって、前記地上子は、レールに沿って一定長さを有し、駅の列車の停止位置に配置され、前記車上子から送信された電力波を受信する第１の電力波受信アンテナコイルと、前記第１の電力波受信アンテナコイルの列車進行走行手前の位置に、前記第１の電力波受信アンテナコイルに隣接して配置され、前記車上子から送信された電力波を受信する第２の電力波受信用アンテナコイルと、前記第１の電力波受信アンテナコイルの列車進行走行前方の位置に、前記第１の電力波受信アンテナコイルに隣接して配置され、前記車上子から送信された電力波を受信する第３の電力波受信アンテナコイルを有し、
前記地上装置は、電力波受信部及び位置判定部を有し、前記電力波受信部は、前記第１の電力波受信アンテナコイルで受信した電力波を検波して出力する第１の受信部と、前記第２の電力波受信アンテナコイルで受信した電力波を検波して出力する第２の受信部と、前記第３の電力波受信アンテナコイルで受信した電力波を検波して出力する第３の受信部を有し、前記第１の電力波受信アンテナコイルと第１の受信部は、前記第２の電力波受信アンテナコイルと第２の受信部及び第３の電力波受信アンテナコイルと第３の受信部と比較して高い電力波の受信特性と広いダイナミックレンジ及び利得調整の特性を有し、前記第１の電力波受信アンテナコイルの電力波受信応動特性は、前記第２の電力波受信アンテナコイル及び前記第３の電力波受信アンテナコイルの電力波受信応動特性のピーク値近傍で交差するように調整され、
前記位置判定部は、前記地上子で前記車上子から送信される電力波を受信しているとき、前記第２の電力波受信アンテナコイルの電力波受信応動特性と前記第１の電力波受信アンテナコイルの電力波受信応動特性が一致した位置と、前記第１の電力波受信アンテナコイルの電力波受信応動特性と前記第３の電力波受信アンテナコイルの電力波受信応動特性が一致した位置との間を列車が定位置判定範囲に在線していると判定することを特徴とする。 The train position detection device of the present invention is a train position detection device having a ground element and a ground device using a transponder that receives a power wave transmitted from a vehicle upper element mounted on a train, wherein the ground element is A first power wave receiving antenna coil having a certain length along the rail, disposed at a stop position of the train at the station, and receiving a power wave transmitted from the vehicle upper element; and the first power wave A second power wave receiving antenna coil that is disposed adjacent to the first power wave receiving antenna coil at a position in front of the train traveling of the receiving antenna coil and that receives the power wave transmitted from the vehicle upper element. And the first power wave receiving antenna coil is disposed adjacent to the first power wave receiving antenna coil at a position ahead of the train traveling and receives a power wave transmitted from the vehicle upper element. 3 power waves It has a signal antenna coil,
The ground device includes a power wave receiving unit and a position determination unit, and the power wave receiving unit detects and outputs a power wave received by the first power wave receiving antenna coil; A second receiving section for detecting and outputting the power wave received by the second power wave receiving antenna coil; and a third receiving section for detecting and outputting the power wave received by the third power wave receiving antenna coil. And the first power wave receiving antenna coil and the first receiving part are the second power wave receiving antenna coil, the second receiving part, the third power wave receiving antenna coil, and the first power wave receiving antenna coil. 3 has a high power wave reception characteristic, a wide dynamic range and a gain adjustment characteristic as compared with the reception unit 3, and the power wave reception response characteristic of the first power wave reception antenna coil is the second power wave. Receive antenna coil and third power wave Is adjusted so as to intersect at a peak value near the power wave received response characteristic of the signal the antenna coil,
The position determination unit is configured to receive a power wave reception response characteristic of the second power wave receiving antenna coil and the first power wave reception when the ground wave is receiving a power wave transmitted from the vehicle upper element. A position where the power wave reception responsive characteristic of the antenna coil matches, a position where the power wave reception responsive characteristic of the first power wave reception antenna coil and the power wave reception responsive characteristic of the third power wave reception antenna coil match, and It is determined that the train is in the fixed position determination range between the two.

この発明は、第１の電力波受信アンテナコイルと第１の受信部は、第２の電力波受信アンテナコイルと第２の受信部及び第３の電力波受信アンテナコイルと第３の受信部と比較して高い電力波の受信特性と広いダイナミックレンジ及び利得調整の特性を有し、第１の電力波受信アンテナコイルの電力波受信応動特性は、第２の電力波受信アンテナコイル及び第３の電力波受信アンテナコイルの電力波受信応動特性のピーク値近傍で交差するように調整することにより、複数の異なる駅で機器設置後に現地で再調整を行うとき、第１の電力波受信アンテナコイルの電力波受信応動特性が上下に移動し、第２の電力波受信アンテナコイルの電力波受信応動特性と一致した交点及び第３の電力波受信アンテナコイルの電力波受信応動特性と一致した交点は、第２の電力波受信アンテナコイルと第３の電力波受信アンテナコイルの電力波受信応動特性のピーク値近傍で左右に移動し、各交点間の距離の変化が大きくなり、定位置判定範囲の調整を容易に行なうことができ、現地作業を低減することができる。また、地上装置のみの電気的性能の維持管理を行うことにより、高い検出精度で列車の停止位置を検出することができる。   In the present invention, the first power wave receiving antenna coil and the first receiving unit include a second power wave receiving antenna coil, a second receiving unit, a third power wave receiving antenna coil, and a third receiving unit. Compared with the high power wave reception characteristics, wide dynamic range and gain adjustment characteristics, the power wave reception response characteristics of the first power wave reception antenna coil are the second power wave reception antenna coil and the third power wave reception characteristic. By adjusting the power wave receiving antenna coil so that it intersects in the vicinity of the peak value of the power wave receiving responsive characteristic, when the readjustment is performed on site after installing the equipment at a plurality of different stations, the first power wave receiving antenna coil The power wave reception responsive characteristic moved up and down, and coincided with the power wave reception responsive characteristic of the second power wave reception antenna coil and the power wave reception responsive characteristic of the third power wave reception antenna coil. The point moves to the left and right in the vicinity of the peak value of the power wave reception responsive characteristics of the second power wave receiving antenna coil and the third power wave receiving antenna coil, and the change in the distance between the intersections becomes large, so that the fixed position is determined. The range can be easily adjusted and field work can be reduced. In addition, by performing maintenance and management of the electrical performance of only the ground device, the stop position of the train can be detected with high detection accuracy.

この発明の列車停止位置検出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 train stop position detection apparatus of this invention. トランスポンダ地上装置の電力波受信部と位置判定部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 electric power wave receiving part and position determination part of a transponder ground apparatus. 地上子に有する電力波受信アンテナコイルの受信レベルの変化を示す模式図である。It is a schematic diagram which shows the change of the reception level of the power wave receiving antenna coil which has in a ground unit. 従来の地上子の電力波受信アンテナコイルの配置と受信レベルの変化を示す模式図である。It is a schematic diagram which shows the arrangement | positioning of the conventional ground wave power wave receiving antenna coil, and the change of a receiving level.

図１はこの発明の列車位置検出装置の構成を示すブロック図である。図に示すように、列車位置検出装置は、列車に搭載されたトランスポンダ車上装置１と車上子２と、地上の列車停止位置に設けられた地上子３とトランスポンダ地上装置４を有する。車上子２は情報波送信アンテナコイル５と電力波送信アンテナコイル６及び情報波受信アンテナコイル７を有する。情報波送信アンテナコイル５はトランスポンダ車上装置１から送られる車上情報を有する情報波を地上子３に送信する。電力波送信アンテナコイル６はトランスポンダ車上装置１から送られる電力波を地上子３に送信する。情報波受信アンテナコイル７は地上子３から送信される地上情報を有する情報波を受信してトランスポンダ車上装置１に送る。   FIG. 1 is a block diagram showing the configuration of the train position detecting apparatus of the present invention. As shown in the figure, the train position detection device includes a transponder onboard device 1 and an onboard child 2 mounted on a train, a ground unit 3 and a transponder ground device 4 provided at a train stop position on the ground. The vehicle upper 2 includes an information wave transmitting antenna coil 5, a power wave transmitting antenna coil 6, and an information wave receiving antenna coil 7. The information wave transmitting antenna coil 5 transmits an information wave having on-board information sent from the transponder on-board device 1 to the ground unit 3. The power wave transmitting antenna coil 6 transmits the power wave transmitted from the transponder onboard device 1 to the ground unit 3. The information wave receiving antenna coil 7 receives an information wave having ground information transmitted from the ground element 3 and sends it to the transponder on-board device 1.

地上子３は情報波受信アンテナコイル８と情報波送信アンテナコイル９及び列車進行方向に沿って配置され、列車が所定の停止位置より手前の位置（ショート位置）にあることを判定するための電力波受信アンテナコイル１０ａと、列車が所定の定位置（ジャスト位置）にあることを判定するため一定長さを有する電力波受信アンテナコイル１０ｂと、列車が所定の定位置を越えた位置（オーバ位置）にあることを判定するための電力波受信アンテナコイル１０ｃを有する。情報波受信アンテナコイル８は車上子２から送信された車上情報を有する情報波を受信してトランスポンダ地上装置４に送る。情報波送信アンテナコイル９はトランスポンダ地上装置４から送られる地上情報を有する情報波を車上子２に送信する。３個の電力波受信アンテナコイル１０ａ，１０ｂ，１０ｃはそれぞれ車上子２から送信される電力波を受信してトランスポンダ地上装置４に送る。   The ground element 3 is arranged along the information wave receiving antenna coil 8, the information wave transmitting antenna coil 9, and the traveling direction of the train, and electric power for determining that the train is in a position before the predetermined stop position (short position). A wave receiving antenna coil 10a, a power wave receiving antenna coil 10b having a predetermined length to determine that the train is at a predetermined fixed position (just position), and a position where the train exceeds a predetermined fixed position (over position) ) Has a power wave receiving antenna coil 10c for determining the presence of the antenna. The information wave receiving antenna coil 8 receives the information wave having on-vehicle information transmitted from the vehicle upper element 2 and sends it to the transponder ground device 4. The information wave transmitting antenna coil 9 transmits an information wave having ground information sent from the transponder ground device 4 to the vehicle upper element 2. The three power wave receiving antenna coils 10a, 10b, and 10c each receive a power wave transmitted from the vehicle upper element 2 and send it to the transponder ground device 4.

トランスポンダ地上装置４は、車上情報受信部１１と地上情報送信部１２と電力波受信部１３及び位置判定部１４を有する。車上情報受信部１１は地上子３の情報波受信アンテナコイル８で受信した情報波を復調し、復調した車上情報を駅制御装置１５に出力する。地上情報送信部１２は駅制御装置１５から出力される地上情報と位置判定部１４から入力する位置情報を変調し、変調した情報波を情報波送信アンテナコイル９から車上子２に送信する。   The transponder ground device 4 includes an on-vehicle information reception unit 11, a ground information transmission unit 12, a power wave reception unit 13, and a position determination unit 14. The on-board information receiving unit 11 demodulates the information wave received by the information wave receiving antenna coil 8 of the ground unit 3 and outputs the demodulated on-board information to the station control device 15. The ground information transmission unit 12 modulates the ground information output from the station control device 15 and the position information input from the position determination unit 14, and transmits the modulated information wave from the information wave transmission antenna coil 9 to the vehicle upper element 2.

電力波受信部１３は、図２のブロック図に示すように、ショート位置受信部１６ａとジャスト位置受信部１６ｂとオーバ位置受信部１６ｃを有する。ショート位置受信部１６ａは電力波受信アンテナコイル１０ａで受信した電力波を検波等の処理をして、図３に示す電力波受信アンテナコイル１０ａの受信レベルＬａを位置判定部１４に出力する。ジャスト位置受信部１６ｂは電力波受信アンテナコイル１０ｂで受信した電力波を処理して電力波受信アンテナコイル１０ｂの受信レベルＬｂを位置判定部１４に出力する。オーバ位置受信部１６ｃは電力波受信アンテナコイル１０ｃで受信した電力波を処理して電力波受信アンテナコイル１０ｃの受信レベルＬｃを位置判定部１４に出力する。また、図３において、受信レベルＬｓａは電力波受信アンテナコイル１０ａの受信感度を示し、受信レベルＬｓｂは電力波受信アンテナコイル１０ｂの受信感度を示し、受信レベルＬｓｃは電力波受信アンテナコイル１０ｃの受信感度を示す。なお、受信レベルＬｉは情報波受信アンテナ８の受信レベルを示す。   As shown in the block diagram of FIG. 2, the power wave receiver 13 includes a short position receiver 16a, a just position receiver 16b, and an over position receiver 16c. The short position receiving unit 16a performs processing such as detection of the power wave received by the power wave receiving antenna coil 10a, and outputs the reception level La of the power wave receiving antenna coil 10a shown in FIG. The just position receiving unit 16b processes the power wave received by the power wave receiving antenna coil 10b and outputs the reception level Lb of the power wave receiving antenna coil 10b to the position determining unit 14. The over-position receiving unit 16c processes the power wave received by the power wave receiving antenna coil 10c and outputs the reception level Lc of the power wave receiving antenna coil 10c to the position determining unit 14. In FIG. 3, the reception level Lsa indicates the reception sensitivity of the power wave reception antenna coil 10a, the reception level Lsb indicates the reception sensitivity of the power wave reception antenna coil 10b, and the reception level Lsc indicates the reception level of the power wave reception antenna coil 10c. Indicates sensitivity. The reception level Li indicates the reception level of the information wave reception antenna 8.

この列車がジャスト位置にあることを判定するための電力波受信アンテナコイル１０ｂとジャスト位置受信部１６ｂは、ショート位置判定用及びオーバ位置判定用と比較して高い電力波の受信特性と広いダイナミックレンジ及び利得調整の特性を有し、図３に示すように、ジャスト位置用の電力波受信アンテナコイル１０ｂの受信レベルＬｂはショート位置判定用の電力波受信アンテナコイル１０ａの受信レベルＬａ及びオーバ位置判定用の電力波受信アンテナコイル１０ｃの受信レベルＬｃのピーク値近傍で交差するように受信感度の設定と必要な利得調整がされている。   The power wave receiving antenna coil 10b and the just position receiving unit 16b for determining that the train is in the just position have higher power wave reception characteristics and a wider dynamic range than those for the short position determination and the over position determination. As shown in FIG. 3, the reception level Lb of the power wave receiving antenna coil 10b for the just position is equal to the reception level La of the power wave receiving antenna coil 10a for determining the short position and the over position determination. The reception sensitivity is set and the necessary gain is adjusted so as to intersect in the vicinity of the peak value of the reception level Lc of the power wave reception antenna coil 10c.

位置判定部１４は２個のレベルコンパレータ１７ａ，１７ｂと論理部１８を有する。レベルコンパレータ１７ａはショート位置受信部１６ａから入力した受信レベルＬａとジャスト位置受信部１６ｂから入力した受信レベルＬｂの大小を比較し、受信レベルＬａと受信レベルＬｂが一致する交点Ａを検出して交点Ａの検知信号を論理部１８に出力する。レベルコンパレータ１７ｂはジャスト位置受信部１６ｂから入力する受信レベルＬｂとオーバ位置受信部１６ｃから入力する受信レベルＬｃの大小を比較し、受信レベルＬｂと受信レベルＬｃが一致する交点Ｂを検出して交点Ｂの検知信号を論理部１８に出力する。論理部１８はレベルコンパレータ１７ａから入力した交点Ａの検知信号とレベルコンパレータ１７ｂから入力した交点Ｂの検知信号の間を列車が定位置判定範囲に在線していると判定する。   The position determination unit 14 includes two level comparators 17 a and 17 b and a logic unit 18. The level comparator 17a compares the received level La input from the short position receiving unit 16a with the received level Lb input from the just position receiving unit 16b, detects an intersection A where the received level La and the received level Lb match, and A detection signal A is output to the logic unit 18. The level comparator 17b compares the reception level Lb input from the just position reception unit 16b with the reception level Lc input from the over position reception unit 16c, detects an intersection B where the reception level Lb and the reception level Lc match, and detects the intersection point The B detection signal is output to the logic unit 18. The logic unit 18 determines that the train is in the fixed position determination range between the detection signal at the intersection A input from the level comparator 17a and the detection signal at the intersection B input from the level comparator 17b.

この列車位置検出装置で列車の位置を検出するときの動作を説明する。列車が走行して車上子２が地上子３と電磁結合して、車上子２から送信している電力波を電力波受信アンテナコイル１０ａで受信してショート位置受信部１６ａから受信レベルＬａが位置判定部１４の論理部１８に入力し、論理部１８に受信レベルＬａのみを入力している状態を論理部１８は列車がショート位置に在線していると判定して、ショート位置を示す情報を駅制御装置１５と地上情報送信部１２に出力する。地上情報送信部１２は入力したショート位置を示す情報を地上子３から車上子２に送信する。   The operation when the train position is detected by this train position detection device will be described. The train travels and the vehicle upper 2 is electromagnetically coupled to the ground 3 so that the power wave transmitted from the vehicle upper 2 is received by the power wave receiving antenna coil 10a and received from the short position receiving unit 16a at the reception level La. Is input to the logic unit 18 of the position determination unit 14, and only the reception level La is input to the logic unit 18, the logic unit 18 determines that the train is in the short position and indicates the short position. Information is output to the station controller 15 and the ground information transmitter 12. The ground information transmission unit 12 transmits information indicating the input short position from the ground element 3 to the vehicle upper element 2.

また、論理部１８に受信レベルＬａを入力してから引き続いて車上子２から送信している電力波を電力波受信アンテナコイル１０ｂで受信してジャスト位置受信部１６ｂから受信レベルＬｂが論理部１８に入力し、論理部１８にレベルコンパレータ１７ａから交点Ａの検知信号が入力すると、論理部１８は列車が定位置判定範囲に進入したと判定する。   Further, after the reception level La is input to the logic unit 18, the power wave transmitted from the vehicle upper body 2 is received by the power wave receiving antenna coil 10b, and the reception level Lb is received from the just position reception unit 16b. 18, and when the detection signal of the intersection A is input from the level comparator 17 a to the logic unit 18, the logic unit 18 determines that the train has entered the fixed position determination range.

また、論理部１８にコンパレータ１７ａから交点Ａの検知信号が入力されてから受信レベルＬｂが入力されている状態が継続しているとき、論理部１８は列車がジャスト位置に在線していることを示す情報を駅制御装置１５に出力する。駅制御装置１５は入力したジャスト位置在線を示す情報を地上情報送信部１２を介して地上子３から車上子２に送信し、ホームドア制御装置等の動作を制御する。   Further, when the reception level Lb is continuously input after the detection signal of the intersection A is input from the comparator 17a to the logic unit 18, the logic unit 18 indicates that the train is in the just position. The indicated information is output to the station control device 15. The station control device 15 transmits the information indicating the just-positioned input line from the ground child 3 to the vehicle upper child 2 via the ground information transmission unit 12, and controls the operation of the platform door control device and the like.

また、論理部１８で列車が定位置判定範囲に進入したと判定した後、引き続いて車上子２から送信している電力波を電力波受信アンテナコイル１０ｃで受信して論理部１８に受信レベルＬｃが入力し、レベルコンパレータ１７ｂから交点Ｂの検知信号が入力すると、論理部１８は列車が定位置判定範囲から進出したと判定してオーバ位置進入を示す情報を駅制御装置１５と地上情報送信部１２に出力する。地上情報送信部１２は入力したオーバ位置進入を示す情報を地上子３から車上子２に送信する。   In addition, after the logic unit 18 determines that the train has entered the fixed position determination range, the power wave subsequently transmitted from the vehicle upper 2 is received by the power wave receiving antenna coil 10c and received by the logic unit 18 at the reception level. When Lc is input and the detection signal of the intersection B is input from the level comparator 17b, the logic unit 18 determines that the train has advanced from the fixed position determination range, and transmits information indicating the entry of the over position to the station controller 15 and ground information. To the unit 12. The ground information transmission unit 12 transmits the input information indicating the approach of the over position from the ground element 3 to the vehicle upper element 2.

このように論理部１８はレベルコンパレータ１７ａから入力した交点Ａの検知信号とレベルコンパレータ１７ｂから入力した交点Ｂの検知信号の間を定位置判定範囲にすることにより、異なる形式の列車が走行して各車上子２から送信する電力波の送信レベルが異なるために、図３に示すように地上子３の電力波受信アンテナコイル１０ａ，１０ｂ，１０ｃで受信した電力波の受信レベルＬａ，Ｌｂ，Ｌｃが受信レベルＬａ１，Ｌｂ１，Ｌｃ１と変動しても受信レベルＬａ１，Ｌｂ１の交点Ａと受信レベルＬｂ１，Ｌｃ１の交点Ｂは変動しないで定位置判定範囲を一定にすることができる。したがって異なる形式の列車が相互乗り入れ運転を行っている線区においても列車が定位置判定範囲内に在線していることを高精度に検知することができる。   In this way, the logic unit 18 sets a fixed position determination range between the detection signal of the intersection A input from the level comparator 17a and the detection signal of the intersection B input from the level comparator 17b, so that different types of trains run. Since the transmission levels of the power waves transmitted from the respective vehicle uppers 2 are different, the reception levels La, Lb, of the power waves received by the power wave receiving antenna coils 10a, 10b, 10c of the ground unit 3 as shown in FIG. Even if Lc fluctuates with the reception levels La1, Lb1, Lc1, the fixed position determination range can be made constant without the intersection A of the reception levels La1, Lb1 and the intersection B of the reception levels Lb1, Lc1 changing. Therefore, it is possible to detect with high accuracy that the trains are in the fixed position determination range even in the line sections where different types of trains are operating on each other.

この列車位置検出装置の地上子３とトランスポンダ地上装置４を複数の異なる駅に適用する場合、地上子３とトランスポンダ地上装置４とを接続したケーブル長は一定でなく、機器設置後に現地で再調整が行われることが一般的である。このような場合、ジャスト位置判定用の電力波受信アンテナコイル１０ｂとジャスト位置受信部１６ｂは、ショート位置判定用及びオーバ位置判定用と比較して高い電力波の受信特性と広いダイナミックレンジ及び利得調整の特性を有し、ジャスト位置用の電力波受信アンテナコイル１０ｂの受信レベルＬｂはショート位置判定用の電力波受信アンテナコイル１０ａの受信レベルＬａ及びオーバ位置判定用の電力波受信アンテナコイル１０ｃの受信レベルＬｃのピーク値近傍で交差するように受信感度の設定と利得調整されるから、ジャスト位置受信部１６ｂの利得を調整すると、ジャスト位置判定用の電力波受信アンテナコイル１０ｂの受信レベルＬｂが上下に移動し、ショート位置判定用の電力波受信アンテナコイル１０ｂの受信レベルＬａと受信レベルＬｂの交点Ａ及び受信レベルＬｂとオーバ位置判定用の電力波受信アンテナコイル１０ｃの受信レベルＬｃの交点Ｂは、ショート位置判定用の電力波受信アンテナコイル１０ａとオーバ位置判定用の電力波受信アンテナコイル１０ｃの受信レベルＬｃのピーク値近傍で左右に移動し、交点Ａと交点Ｂ間の距離の変化が大きくなり、定位置判定範囲の調整を容易に行なうことができ、現地作業を低減することができる。   When the ground element 3 and the transponder ground apparatus 4 of this train position detecting device are applied to a plurality of different stations, the cable length connecting the ground element 3 and the transponder ground apparatus 4 is not constant, and readjustment is performed on site after the equipment is installed. Is generally performed. In such a case, the power wave receiving antenna coil 10b for just position determination and the just position receiving unit 16b have higher power wave reception characteristics, wider dynamic range, and gain adjustment than those for short position determination and over position determination. The reception level Lb of the power wave receiving antenna coil 10b for just position is the reception level La of the power wave receiving antenna coil 10a for short position determination and the reception level La of the power wave receiving antenna coil 10c for over position determination. Since the reception sensitivity is set and the gain is adjusted so as to intersect near the peak value of the level Lc, when the gain of the just position receiving unit 16b is adjusted, the reception level Lb of the power wave receiving antenna coil 10b for just position determination is increased or decreased. And the reception level of the power wave receiving antenna coil 10b for determining the short position The intersection A of the a and the reception level Lb and the intersection B of the reception level Lb and the reception level Lc of the power wave reception antenna coil 10c for determining the over position are the power wave reception antenna coil 10a for determining the short position and the over-position determination. It moves to the left and right near the peak value of the reception level Lc of the power wave receiving antenna coil 10c, the change in the distance between the intersection A and the intersection B becomes large, and the home position determination range can be easily adjusted. Can be reduced.

１；トランスポンダ車上装置、２；車上子、３；地上子、
４；トランスポンダ地上装置、５；情報波送信アンテナコイル、
６；電力波送信アンテナコイル、７；情報波受信アンテナコイル、
８；情報波受信アンテナコイル、９；情報波送信アンテナコイル、
１０；電力波受信アンテナコイル、１１；車上情報受信部、１２；地上情報送信部、
１３；電力波受信部、１４；位置判定部、１５；駅制御装置、
１６ａ；ショート位置受信部，１６ｂ；ジャスト位置受信部、
１６ｃ；オーバ位置受信部、１７；レベルコンパレータ、１８；論理部。 1; transponder on-board device, 2;
4; transponder ground device, 5; information wave transmitting antenna coil,
6; power wave transmitting antenna coil, 7; information wave receiving antenna coil,
8; Information wave receiving antenna coil, 9; Information wave transmitting antenna coil,
10; Power wave receiving antenna coil; 11; On-board information receiving unit; 12; Ground information transmitting unit;
13; Power wave receiving unit; 14; Position determining unit; 15; Station control device;
16a; short position receiving unit, 16b; just position receiving unit,
16c; Over-position receiving unit, 17; Level comparator, 18; Logic unit.

特開平１０−２６４８１４号公報Japanese Patent Laid-Open No. 10-264814 特開昭６０−１９１８７０号公報JP-A-60-191870 特開平９−２２６５８１号公報Japanese Patent Laid-Open No. 9-226581

Claims (1)

列車に搭載された車上子から送信される電力波を受信するトランスポンダを利用した地上子及び地上装置を有する列車位置検出装置であって、
前記地上子は、レールに沿って一定長さを有し、駅の列車の停止位置に配置され、前記車上子から送信された電力波を受信する第１の電力波受信アンテナコイルと、前記第１の電力波受信アンテナコイルの列車進行走行の手前の位置に、前記第１の電力波受信アンテナコイルに隣接して配置され、前記車上子から送信された電力波を受信する第２の電力波受信用アンテナコイルと、前記第１の電力波受信アンテナコイルの列車進行走行の前方の位置に、前記第１の電力波受信アンテナコイルに隣接して配置され、前記車上子から送信された電力波を受信する第３の電力波受信アンテナコイルを有し、
前記地上装置は、電力波受信部及び位置判定部を有し、
前記電力波受信部は、前記第１の電力波受信アンテナコイルで受信した電力波を検波して出力する第１の受信部と、前記第２の電力波受信アンテナコイルで受信した電力波を検波して出力する第２の受信部と、前記第３の電力波受信アンテナコイルで受信した電力波を検波して出力する第３の受信部を有し、前記第１の電力波受信アンテナコイルと第１の受信部は、前記第２の電力波受信アンテナコイルと第２の受信部及び第３の電力波受信アンテナコイルと第３の受信部と比較して高い電力波の受信特性と広いダイナミックレンジ及び利得調整の特性を有し、前記第１の電力波受信アンテナコイルの電力波受信応動特性は、前記第２の電力波受信アンテナコイル及び前記第３の電力波受信アンテナコイルの電力波受信応動特性のピーク値近傍で交差するように調整され、
前記位置判定部は、前記地上子で前記車上子から送信される電力波を受信しているとき、前記第２の電力波受信アンテナコイルの電力波受信応動特性と前記第１の電力波受信アンテナコイルの電力波受信応動特性が一致した位置と、前記第１の電力波受信アンテナコイルの電力波受信応動特性と前記第３の電力波受信アンテナコイルの電力波受信応動特性が一致した位置との間を列車が定位置判定範囲に在線していると判定することを特徴とする列車位置検出装置。 A train position detection device having a ground element and a ground device using a transponder that receives a power wave transmitted from a vehicle upper element mounted on a train,
The ground element has a certain length along a rail, is disposed at a stop position of a train at a station, and receives a power wave transmitted from the vehicle element, and a first power wave receiving antenna coil, A second power wave is disposed adjacent to the first power wave receiving antenna coil at a position before the train traveling of the first power wave receiving antenna coil, and receives a power wave transmitted from the vehicle upper element. The power wave receiving antenna coil and the first power wave receiving antenna coil are disposed adjacent to the first power wave receiving antenna coil at a position in front of the train traveling and transmitted from the vehicle upper element. A third power wave receiving antenna coil for receiving the received power wave;
The ground device has a power wave reception unit and a position determination unit,
The power wave receiving unit detects a power wave received by the first power wave receiving antenna coil and outputs a power wave received by the second power wave receiving antenna coil. And a second receiving unit for outputting and a third receiving unit for detecting and outputting the power wave received by the third power wave receiving antenna coil, and the first power wave receiving antenna coil; The first receiving unit has higher power wave reception characteristics and wider dynamics than the second power wave receiving antenna coil and the second receiving unit and the third power wave receiving antenna coil and the third receiving unit. A power wave receiving response characteristic of the first power wave receiving antenna coil is a power wave receiving characteristic of the second power wave receiving antenna coil and the third power wave receiving antenna coil. Near peak value of response characteristics In is adjusted so as to intersect,
The position determination unit is configured to receive a power wave reception response characteristic of the second power wave receiving antenna coil and the first power wave reception when the ground wave is receiving a power wave transmitted from the vehicle upper element. A position where the power wave reception responsive characteristic of the antenna coil matches, a position where the power wave reception responsive characteristic of the first power wave reception antenna coil and the power wave reception responsive characteristic of the third power wave reception antenna coil match, and A train position detecting device for determining that a train is in the fixed position determination range between the two.
JP2009066365A 2009-03-18 2009-03-18 Train position detection device Active JP4931951B2 (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012214152A (en) * 2011-04-01 2012-11-08 Kyosan Electric Mfg Co Ltd Train position detecting device
KR101912863B1 (en) 2017-09-19 2018-10-30 (주)오버컴테크 Train antenna reception apparatus with train reception antenna having loop antenna for detecting center of ground equipment and control method thereof
CN117954828A (en) * 2024-01-11 2024-04-30 深圳迪科力合科技有限公司 Vehicle-mounted antenna

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JPH0826112A (en) * 1994-07-15 1996-01-30 Nippon Signal Co Ltd:The Device for detecting position of railway vehicle
JPH08133083A (en) * 1994-11-08 1996-05-28 Nippon Signal Co Ltd:The Transmitter-receiver for vehicle and information transfer system for vehicle
JPH09226581A (en) * 1996-02-26 1997-09-02 Nippon Signal Co Ltd:The Vehicle transmission and reception device and vehicle information transmission device
JPH10264814A (en) * 1997-03-26 1998-10-06 Nippon Signal Co Ltd:The Information transmission device between vehicle and ground

Patent Citations (4)

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JPH0826112A (en) * 1994-07-15 1996-01-30 Nippon Signal Co Ltd:The Device for detecting position of railway vehicle
JPH08133083A (en) * 1994-11-08 1996-05-28 Nippon Signal Co Ltd:The Transmitter-receiver for vehicle and information transfer system for vehicle
JPH09226581A (en) * 1996-02-26 1997-09-02 Nippon Signal Co Ltd:The Vehicle transmission and reception device and vehicle information transmission device
JPH10264814A (en) * 1997-03-26 1998-10-06 Nippon Signal Co Ltd:The Information transmission device between vehicle and ground

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012214152A (en) * 2011-04-01 2012-11-08 Kyosan Electric Mfg Co Ltd Train position detecting device
KR101912863B1 (en) 2017-09-19 2018-10-30 (주)오버컴테크 Train antenna reception apparatus with train reception antenna having loop antenna for detecting center of ground equipment and control method thereof
CN117954828A (en) * 2024-01-11 2024-04-30 深圳迪科力合科技有限公司 Vehicle-mounted antenna

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