JP4999754B2 - Train stop position detector - Google Patents

Train stop position detector Download PDF

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JP4999754B2
JP4999754B2 JP2008089010A JP2008089010A JP4999754B2 JP 4999754 B2 JP4999754 B2 JP 4999754B2 JP 2008089010 A JP2008089010 A JP 2008089010A JP 2008089010 A JP2008089010 A JP 2008089010A JP 4999754 B2 JP4999754 B2 JP 4999754B2
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antenna coil
power wave
receiving antenna
train
wave receiving
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JP2009241675A (en
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正貴 中島
耕輔 松本
博 徳橋
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Kyosan Electric Manufacturing Co Ltd
Tokyo Metro Co Ltd
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Tokyo Metro Co Ltd
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Description

この発明は、列車が駅の許容停止位置範囲内に停止したか否を判定する列車停止位置検知装置、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 stop position detection device that determines whether or not a train has stopped within an allowable stop position 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停止位置検知装置が特許文献１や特許文献２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 this train at a fixed position, Patent Literature 1 and Patent Literature 2 disclose a train stop position detection device using a transponder.

特許文献１に示された列車停止位置検知装置の地上装置は、列車の進行方向に沿って一定間隔だけ離れた位置に２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列車の進行方向の手前側に配置された電力波受信アンテナコイルだけで受信している場合は、列車が所定の停止位置より手前の位置（ショート位置）にあると判定し、車上子から送信している電力波を２つの電力波受信アンテナコイルで受信している場合は、列車が所定の停止位置（ジャスト位置）にあると判定し、車上子から送信している電力波を列車の進行方向の前方側に配置された電力波受信アンテナコイルだけで受信している場合は、列車が所定の停止位置を越えた位置（オーバ位置）にあると判定している。   The ground device of the train stop position detection device disclosed in Patent Document 1 arranges two power wave receiving antenna coils at positions spaced apart from each other along a traveling direction of the train, and transmits from the vehicle upper element. If the power wave is received only by the power wave receiving antenna coil arranged on the front side of the traveling direction of the train, it is determined that the train is in a position before the predetermined stop position (short position) When the power wave transmitted from the child is received by the two power wave receiving antenna coils, it is determined that the train is at a predetermined stop position (just position), and the power wave transmitted from the vehicle upper child Is received only by the power wave receiving antenna coil arranged on the front side in the traveling direction of the train, it is determined that the train is at a position beyond the predetermined stop position (over position).

また、特許文献２に示された列車停止位置検知装置の地上子３ａに、図４（ａ）に示すように、列車の進行方向に沿って３個の電力波受信アンテナコイル１０ａ，１０ｂ，１０ｃを配置し、図４（ｂ）に示すように、車上子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、１０ｂ、１０ｃで受信したときの受信レベルＬａ，Ｌｂ，Ｌｃが閾値Ｌｓを超えているか否により列車の位置を判断し、電力波受信アンテナコイル１０ａの受信レベルＬａだけが閾値Ｌｓ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、電力波受信アンテナコイル１０ｂの受信レベルＬｂだけが閾値Ｌｓ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、電力波受信アンテナコイル１０ｃの受信レベルＬｃだけが閾値Ｌｓ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。
実用新案登録第２５００３９６号公報 特開２００１−１５１１１２号公報 Further, as shown in FIG. 4 (a), three power wave receiving antenna coils 10a, 10b, and 10c are arranged on the ground element 3a of the train stop position detecting device shown in Patent Document 2 along the traveling direction of the train. As shown in FIG. 4B, the reception levels La, Lb, and Lc when the power wave transmitted from the vehicle top is received by the power wave receiving antenna coils 10a, 10b, and 10c are threshold values Ls. The train position is determined based on whether or not it exceeds the value, and if only the reception level La of the power wave receiving antenna coil 10a exceeds the threshold value Ls, it is determined that the train is in the short position, and the power wave receiving antenna coil 10b. If only the reception level Lb of the current signal exceeds the threshold value Ls, it is determined that the train is in the just position, and only the reception level Lc of the power wave reception antenna coil 10c exceeds the threshold value Ls. The train is determined to be in the over position.
Utility Model Registration No. 2500396 JP 2001-151112 A

トランスポンダを使用した地上子と車上子の電磁結合の強さは、相互の位置関係と車上子から送信される電力波の送信レベルと、地上子に有する電力波受信アンテナ回路の受信感度により決定される。複数の列車の車上子と地上子の位置関係と各車上子から送信する電力波の送信レベルを一定に管理することは不可能に近く、その結果、ある程度の定位置停止許容範囲の判定誤差は不可避であり、従来から150ｍｍ〜200ｍｍ程度の誤差を許容している。   The strength of electromagnetic coupling between the ground unit and the vehicle unit using the transponder depends on the mutual positional relationship, the transmission level of the power wave transmitted from the vehicle unit, and the reception sensitivity of the power wave receiving antenna circuit on the ground unit. It is determined. It is almost impossible to manage the positional relationship between the upper and ground elements of multiple trains and the transmission level of the power wave transmitted from each of the upper elements, and as a result, a certain fixed position stop tolerance range is determined. The error is inevitable, and an error of about 150 mm to 200 mm is conventionally allowed.

同じ形式の列車が走行するように限定されている線区においては、前記許容誤差を確保することはできるが、例えば首都圏等のように鉄道事業者ごとに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では、異なる形式の列車に対して同じ地上子が定位置停止許容範囲を判定していることになり、車上子や車上子から送信する電力波を送り出す車上装置の性能が同一になるように管理する必要があるが、異なる形式の列車毎に車上装置等の性能管理を厳密に行うことは困難であり、定位置停止許容範囲の判定誤差が実用に適さない値まで拡大するという問題がある。   In line zones where the same type of trains is limited, the tolerance can be ensured, but different types of trains, such as the Tokyo metropolitan area, have different types of trains. The same ground element determines the allowable limit of the fixed position stop for different types of trains in the line section that is being operated, and the on-board device that sends out the power wave transmitted from the on-board element or the on-board element. It is necessary to manage so that the performance is the same, but it is difficult to strictly manage the performance of on-board devices etc. for different types of trains, and the determination error of the fixed position stop allowable range is not suitable for practical use There is a problem of expanding to the value.

この発明は、このような問題を解消し、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許容停止位置範囲内に停止したか否を高精度に検知することができる列車停止位置検知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, and can detect with high accuracy whether or not the train has stopped within the allowable stop position range even in a line section where different types of trains are in mutual operation. An object of the present invention is to provide a stop position detection device.

この発明の列車停止位置検知装置は、列車に搭載された車上子の電力波送信アンテナコイルから送信される電力波を受信する地上子及び地上装置とを有し、トランスポンダを利用した列車停止位置検知装置であって、前記地上子は、レールに沿って一定長さを有し、列車の停止位置に配置された第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た第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た第３の電力波受信アンテナコイルとを有し、前記地上装置は、前記地上子で前記車上子の電力波送信アンテナコイル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受信レベルと前記第１の電力波受信アンテナコイルの受信レベルが一致した位置と、前記第１の電力波受信アンテナコイルの受信レベルと前記第３の電力波受信アンテナコイルの受信レベルが一致した位置との間を定位置停止許容範囲と判定することを特徴とする。
The train stop position detecting device according to the present invention has a ground element and a ground device for receiving a power wave transmitted from a power wave transmitting antenna coil of an upper element mounted on a train, and a train stop position using a transponder. The ground unit has a certain length along the rail, and includes a first power wave receiving antenna coil disposed at a stop position of the train, and the first power wave receiving antenna coil. A second power wave receiving antenna coil disposed adjacent to the first power wave receiving antenna coil at a position before the train traveling travel, and a front of the train traveling travel of the first power wave receiving antenna coil. And a third power wave receiving antenna coil disposed adjacent to the first power wave receiving antenna coil at a position, wherein the ground device is the power wave transmitting antenna of the upper element at the ground element. Co When receiving the power wave transmitted from the Le, the position where the reception level is matched to the said second power wave reception level of the antenna coil first power wave receiving antenna coils, the first power A fixed position stop allowable range is determined between a reception level of the wave reception antenna coil and a position where the reception levels of the third power wave reception antenna coil coincide with each other.

この発明は、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配置された第２の電力波受信用アンテナコイルの受信レベルと第１の電力波受信アンテナコイルの電力波の受信レベルが一致した位置と、第１の電力波受信アンテナコイルの受信レベルと第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配置された第３の電力波受信アンテナコイルの受信レベルが一致した位置との間を定位置停止許容範囲と判定することにより、異なる形式の列車の車上子から送信する電力波の送信レベルが異なって各電力波受信アンテナコイルで受信した電力波の受信レベルが変動しても、受信レベルが一致する位置は変動しないで定位置停止許容範囲を一定にすることができ、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許容停止位置範囲内に停止したか否を高精度に検知することができる。   The present invention relates to the reception level of the second power wave receiving antenna coil and the reception level of the power wave of the first power wave receiving antenna coil, which are arranged at a position before the traveling travel of the first power wave receiving antenna coil. , The reception level of the first power wave reception antenna coil and the reception level of the third power wave reception antenna coil arranged at a position ahead of the train traveling of the first power wave reception antenna coil The transmission level of the power wave transmitted from the upper part of the train of a different type of train is determined by determining the allowable range of the fixed position stop between the received position and the reception level of the power wave received by each power wave receiving antenna coil. Even if fluctuates, the position where the reception level matches does not fluctuate, and the fixed position stop allowable range can be made constant, and different types of trains are interoperating. Also it is possible to detect whether the train is stopped within an allowable stop position range with high accuracy in.

図１はこの発明の列車停止位置検知装置の構成を示すブロック図である。図に示すように、列車停止位置検知装置は、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を有し、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に送信し、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で地上子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 stop position detection apparatus of the present invention. As shown in the figure, the train stop position detecting device includes a transponder onboard device 1 and an onboard child 2 mounted on a train, and a ground unit 3 and a transponder ground device 4 provided at a train stop position on the ground. The vehicle upper 2 has 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 has information on the vehicle transmitted from the transponder onboard device 1. The wave is transmitted to the ground unit 3, and the power wave transmitting antenna coil 6 transmits the power wave transmitted from the transponder onboard device 1 to the ground unit 3. An information wave having ground information transmitted from the ground element 3 is received by the information wave receiving antenna coil 7 and sent to the transponder onboard apparatus 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、列車が所定の停止位置（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、列車が所定の停止位置を越えた位置（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). The wave receiving antenna coil 10a, the power wave receiving antenna coil 10b having a certain length for determining that the train is at a predetermined stop position (just position), and the position where the train exceeds the predetermined stop position (over position) ) Has a power wave receiving antenna coil 10c for determining the presence of the power wave receiving antenna coil 10c. 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及び停止位置判定部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から送られた情報波を受信し、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５から出力される地上情報と停止位置判定部１４から出力する停止位置情報を変調し、変調した情報波を情報波送信アンテナコイル９に送る。   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 stop position determination unit 14. The on-board information receiving unit 11 receives the information wave transmitted from 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 5 and the stop position information output from the stop position determination unit 14, and sends the modulated information wave to the information wave transmission antenna coil 9.

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を停止位置判定部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を停止位置判定部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を停止位置判定部１４に出力する。なお、図３において、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 stop position determining unit 14. The over position receiving unit 16 c processes the power wave received by the power wave receiving antenna coil 10 c and outputs the reception level Lc of the power wave receiving antenna coil 10 c to the stop position determining unit 14. In FIG. 3, the reception level Li indicates the reception level of the information wave reception antenna 8.

停止位置判定部１４は２個のコンパレータ１７ａ，１７ｂと論理部１８を有する。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の大小を識別し、受信レベルＬａと受信レベルＬｂが一致する交点Ｌａｂを検出して交点Ｌａｂの検知信号を論理部１８に出力する。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の大小を識別し、受信レベルＬｂと受信レベルＬｃが一致する交点Ｌｂｃを検出して交点Ｌｂｃの検知信号を論理部１８に出力する。論理部１８はコンパレータ１７ａから入力した交点Ｌａｂの検知信号とコンパレータ１７ｂから入力した交点Ｌｂｃの検知信号の間を定位置停止許容範囲と判定する。   The stop position determination unit 14 includes two comparators 17 a and 17 b and a logic unit 18. The comparator 17a discriminates between the reception level La input from the short position reception unit 16a and the reception level Lb input from the just position reception unit 16b, detects an intersection Lab where the reception level La and the reception level Lb match, and detects the intersection Lab. Is output to the logic unit 18. The comparator 17b discriminates between the reception level Lb input from the just position reception unit 16b and the reception level Lc input from the over position reception unit 16c, detects an intersection Lbc where the reception level Lb and the reception level Lc match, and detects the intersection Lbc. Is output to the logic unit 18. The logic unit 18 determines that the interval between the detection signal of the intersection Lab input from the comparator 17a and the detection signal of the intersection Lbc input from the comparator 17b is a fixed position stop allowable range.

この列車停止位置検知装置で列車の停止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が停止位置判定部１４の論理部１８に入力すると、列車がショート位置に達したと判定する。この状態で車上子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で受信しないで、論理部１８に受信レベルＬａを入力してからあらかじめ定めた一定時間経過してもジャスト位置受信部１６ｂからの受信レベルＬｂを入力しないとき、論理部１８は列車がショート位置に停止したと判定して、ショート位置停止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停止を示す情報を地上子３から車上子２に送信する。   An operation when the stop position of the train is detected by the train stop 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 stop position determination unit 14, it is determined that the train has reached the short position. In this state, the power wave transmitted from the vehicle upper body 2 is not received by the power wave receiving antenna coil 10b, and the just position reception is performed even if a predetermined time elapses after the reception level La is input to the logic unit 18. When the reception level Lb from the unit 16b is not input, the logic unit 18 determines that the train has stopped at the short position, and outputs information indicating the short position stop to the station control device 15 and the ground information transmission unit 12. The ground information transmission unit 12 transmits the input information indicating the short position stop 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に入力すると、論理部１８は列車が走行していると判定する。この状態で論理部１８にコンパレータ１７ａから交点Ｌａｂの検知信号が入力すると、論理部１８は列車が定位置停止許容範囲に進入したと判定する。   In addition, 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. When input to 18, the logic unit 18 determines that the train is running. In this state, when the detection signal of the intersection Lab is input from the comparator 17a to the logic unit 18, the logic unit 18 determines that the train has entered the fixed position stop allowable range.

また、論理部１８に受信レベルＬｂを入力してからあらかじめ定めた一定時間経過しても車上子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で受信しないでオーバ位置受信部１６ｃからの受信レベルＬｃを入力しないとき、論理部１８は列車がジャスト位置に停止したと判定して、ジャスト位置停止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は入力したジャスト位置停止を示す情報を地上子３から車上子２に送信する。駅制御装置１５はジャスト位置停止を示す情報を入力するとホームドア制御装置等の動作を制御する。   Further, even if a predetermined time has elapsed after the reception level Lb is input to the logic unit 18, the power wave transmitting antenna coil 10c does not receive the power wave transmitted from the vehicle upper element 2 and the over-position receiving unit 16c. When the reception level Lc is not input, the logic unit 18 determines that the train has stopped at the just position, and outputs information indicating the just position stop to the station control device 15 and the ground information transmitting unit 12. The ground information transmission unit 12 transmits the input information indicating the just position stop from the ground element 3 to the vehicle upper element 2. The station control device 15 controls the operation of the platform door control device and the like when the information indicating the just position stop is input.

また、論理部１８で列車が定位置停止許容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、コンパレータ１７ｂから交点Ｌｂｃの検知信号が入力すると、論理部１８は列車が定位置停止許容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 stop allowable 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. When the level Lc is input and the detection signal of the intersection Lbc is input from the comparator 17b, the logic unit 18 determines that the train has advanced from the fixed position stop allowable range, and displays information indicating the entry of the over position to the station control device 15 and the ground information. Output to the transmitter 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はコンパレータ１７ａから入力した交点Ｌａｂの検知信号とコンパレータ１７ｂから入力した交点Ｌｂｃの検知信号の間を定位置停止許容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Ｌａｂと受信レベルＬｂ１，Ｌｃ１の交点Ｌｂｃは変動しないで定位置停止許容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許容停止位置範囲内に停止したか否を高精度に検知することができる。   In this manner, the logic unit 18 sets different positions between the detection signal of the intersection Lab inputted from the comparator 17a and the detection signal of the intersection Lbc inputted from the comparator 17b, so that different types of trains can run. Since the transmission levels of the power waves transmitted from the vehicle upper 2 are different, the reception levels La, Lb, Lc of the power waves received by the power wave receiving antenna coils 10a, 10b, 10c of the ground child 3 as shown in FIG. However, even if it varies with the reception levels La1, Lb1, and Lc1, the intersection Lab of the reception levels La1 and Lb1 and the intersection Lbc of the reception levels Lb1 and Lc1 do not vary and the fixed position stop allowable range can be made constant. Therefore, it is possible to detect with high accuracy whether or not the train has stopped within the allowable stop position range even in the line sections in which different types of trains perform mutual entry operation.

この発明の列車停止位置検知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. 地上子の電力波受信部と停止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 power wave receiving part and stop position determination part of a ground unit. 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.

符号の説明Explanation of symbols

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；停止位置判定部、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；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 reception unit, 14; Stop position determination unit, 15; Station control device,
16a; short position receiving unit, 16b; just position receiving unit,
16c; Over-position receiving unit, 17; Comparator, 18; Logic unit.

Claims (1)

列車に搭載された車上子の電力波送信アンテナコイルから送信される電力波を受信する地上子及び地上装置とを有し、トランスポンダを利用した列車停止位置検知装置であって、
前記地上子は、レールに沿って一定長さを有し、列車の停止位置に配置された第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た第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た第３の電力波受信アンテナコイルとを有し、
前記地上装置は、前記地上子で前記車上子の電力波送信アンテナコイル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受信レベルと前記第１の電力波受信アンテナコイルの受信レベルが一致した位置と、前記第１の電力波受信アンテナコイルの受信レベルと前記第３の電力波受信アンテナコイルの受信レベルが一致した位置との間を定位置停止許容範囲と判定することを特徴とする列車停止位置検知装置。 A train stop position detecting device using a transponder having a ground unit and a ground device for receiving a power wave transmitted from a power wave transmitting antenna coil of an upper arm mounted on a train,
The ground unit has a certain length along the rail, and the first power wave receiving antenna coil disposed at the stop position of the train, and the position of the first power wave receiving antenna coil before the traveling travel of the train In addition, the second power wave receiving antenna coil disposed adjacent to the first power wave receiving antenna coil, and the first power wave receiving antenna coil at the position ahead of the traveling of the train, A third power wave receiving antenna coil disposed adjacent to the power wave receiving antenna coil of
When the ground device is receiving a power wave transmitted from the power wave transmitting antenna coil of the vehicle arm at the ground unit, the reception level of the second power wave receiving antenna coil and the first power are received. A fixed position stop is allowed between a position where the reception level of the wave receiving antenna coil matches and a position where the reception level of the first power wave receiving antenna coil matches the reception level of the third power wave receiving antenna coil. A train stop position detection device characterized by determining a range.
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