JP5078439B2 - Information transmission equipment - Google Patents

Information transmission equipment Download PDF

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JP5078439B2
JP5078439B2 JP2007138497A JP2007138497A JP5078439B2 JP 5078439 B2 JP5078439 B2 JP 5078439B2 JP 2007138497 A JP2007138497 A JP 2007138497A JP 2007138497 A JP2007138497 A JP 2007138497A JP 5078439 B2 JP5078439 B2 JP 5078439B2
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train
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information transmission
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transmission path
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JP2008290585A (en
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哲也 高田
賢史 西田
保 横山
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Kyosan Electric Manufacturing Co Ltd
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Description

この発明は、地上と列車の間で情報を授受する情報伝送装置に関するものである。   The present invention relates to an information transmission device that exchanges information between the ground and a train.

列車の位置を検知して列車を制御するためにレールを電気回路の一部とする軌道回路が広く用いられている。軌道回路はレールを所望の長さに区分し、図６に示すように、区分した各軌道回路１Ｔ〜３Ｔの列車進出側に設けた送信器２２によりレール６Ｌ，６Ｒに信号電流Ｉｓを送信し、各軌道回路１Ｔ〜３Ｔに列車３が在線しないときは、レール６Ｌ，６Ｒに送信している信号電流Ｉｓを各軌道回路１Ｔ〜３Ｔの列車進入側に設けた受信器２３により受信している。例えば軌道回路２Ｔに列車３が進入すると左右のレール６Ｌ，６Ｒが車軸１６により短絡されて送信器２２ｂから送信している信号電流Ｉｓを受信器２３で検出しなくなり、軌道回路２Ｔに列車３が進入したことを検知する。また、送信器２２からレール６Ｌ，６Ｒに制限速度などの情報を有するＡＴＣ信号を送信し、このレール６Ｌ，６Ｒに流れるＡＴＣ信号を列車３に設けた受電器を介して車上受信器で受信して列車３の速度を制限速度以下に制御している。   In order to detect the position of a train and control the train, a track circuit having a rail as a part of an electric circuit is widely used. The track circuit divides the rail into desired lengths, and as shown in FIG. 6, a signal current Is is transmitted to the rails 6L and 6R by a transmitter 22 provided on the train advance side of each track circuit 1T to 3T. When the train 3 is not present in each track circuit 1T to 3T, the signal current Is transmitted to the rails 6L and 6R is received by the receiver 23 provided on the train approach side of each track circuit 1T to 3T. . For example, when the train 3 enters the track circuit 2T, the left and right rails 6L and 6R are short-circuited by the axle 16, and the signal current Is transmitted from the transmitter 22b is not detected by the receiver 23. Detect that it has entered. Further, an ATC signal having information such as speed limit is transmitted from the transmitter 22 to the rails 6L and 6R, and the ATC signal flowing through the rails 6L and 6R is received by the on-vehicle receiver via the power receiver provided in the train 3. Thus, the speed of the train 3 is controlled below the speed limit.

また、軌道回路で境界にレール絶縁をしない無絶縁軌道回路で列車が進入したことを明確に検知するため、特許文献１に示すように、３巻線の変成器の一次側の逆巻にした２個のコイルでそれぞれ左右のレールの一定長さによる電圧降下を検出して、レールに流れる信号電流の変化を検出して軌道回路の境界を明確にしている。   In addition, in order to clearly detect that the train has entered a non-insulated track circuit that does not provide rail insulation at the boundary in the track circuit, as shown in Patent Document 1, the primary side of the three-winding transformer is reversed. The voltage drop due to the fixed length of the left and right rails is detected by the two coils, respectively, and the change of the signal current flowing in the rail is detected to clarify the boundary of the track circuit.

この左右のレールが車軸短絡したことにより軌道回路に列車が進入したことを検知する方法は、送信器からレールに送信した信号電流は車軸の後方には流れず、列車が在線する軌道回路に後続列車が進入した場合、後続列車が進入したことを検知できないとともに後続列車に情報を送信することができないため、１つの軌道回路を一閉そく区間として一列車だけ進入させるようにしている。このため列車の高密度運転ができないという短所があった。   The method of detecting that the train has entered the track circuit due to the short circuit of the left and right rails is that the signal current transmitted from the transmitter to the rail does not flow behind the axle, but follows the track circuit where the train is located. When a train enters, since it is not possible to detect that a subsequent train has entered and information cannot be transmitted to the subsequent train, only one train is entered as one track circuit. For this reason, there was a disadvantage that the train could not be operated at high density.

このレールの車軸短絡による影響を受けずに地上と列車の間で情報を授受する情報伝送装置が特許文献２や特許文献３に開示されている。特許文献２に示された情報伝送装置は、２本のレールを長手方向に離れた２点を短絡線で互いに短絡し、短絡線の中点をトランスのコイルを介して互いに接続してレールと短絡線及びコイルで閉回路を形成し、トランスの他方のコイルを地上装置に接続して、車上の受電器が短絡点間のレールと電磁結合しているときに地上と車上間で情報の伝送を行うようにしている。   Patent Document 2 and Patent Document 3 disclose information transmission devices that exchange information between the ground and a train without being affected by the rail axle short circuit. In the information transmission device disclosed in Patent Document 2, two rails that are separated from each other in the longitudinal direction are short-circuited by a short-circuit wire, and the mid-point of the short-circuit wire is connected to each other via a transformer coil. A short circuit and coil form a closed circuit, the other coil of the transformer is connected to the ground device, and information is transferred between the ground and the vehicle when the on-vehicle power receiver is electromagnetically coupled to the rail between the short-circuit points. The transmission is done.

特許文献３に示された情報伝送装置は、隣接する２つの線路の一方の線路の１本のレールと他方の線路の１本のレールを利用して軌道回路を構成し、隣接する２つの線路を走行する列車と情報を授受するようにしている。
実開平５−７６９４０号公報 特公平３−１９８２０号公報 特許第３１９７９１５号公報 The information transmission device disclosed in Patent Document 3 is configured by using one rail of one line of two adjacent lines and one rail of the other line to form a track circuit, and two adjacent lines I am trying to exchange information with trains that run on the road.
Japanese Utility Model Publication No. 5-76940 Japanese Patent Publication No. 3-19820 Japanese Patent No. 3197915

特許文献１に示された情報伝送装置は、２本のレールの短絡線で短絡された一定区間においてのみ地上と列車で情報の伝送を行うため、地上と列車の間で連続して情報を授受することはできなかった。   Since the information transmission device disclosed in Patent Document 1 transmits information between the ground and the train only in a certain section short-circuited by the two rail short-circuit lines, information is continuously transferred between the ground and the train. I couldn't.

また、車軸短絡により閉回路を構成する軌道回路では，図６に示すように、信号電流Ｉｓが左右のレールで互いに反対方向に流れ、帰線電流等のノイズ電流Ｉｎは左右のレールで同じ方向に流れるため、ノイズ電流を車上の受電器で打ち消すことができるが、２本のレールと短絡線及びコイルで閉回路を形成すると、レールの短絡点の間に流れる信号電流は２本のレールで同じ方向に流れノイズ電流の影響を大きく受けてしまい、伝送誤り率が高くなってしまう。   Further, in the track circuit that forms a closed circuit by short-circuiting the axle, as shown in FIG. 6, the signal current Is flows in opposite directions on the left and right rails, and the noise current In such as a return current is the same direction on the left and right rails. However, if a closed circuit is formed by two rails, a short-circuit wire and a coil, the signal current flowing between the rail short-circuit points is two rails. In the same direction, it is greatly affected by the noise current, and the transmission error rate becomes high.

また、特許文献２に示された情報伝送装置は２つの線路が隣接している場合にのみ適用できるとともにノイズ電流の影響を低減することはできなかった。   In addition, the information transmission device disclosed in Patent Document 2 can be applied only when two lines are adjacent to each other, and the influence of noise current cannot be reduced.

この発明は、このような問題を解消し、１つの軌道回路に複数の列車が在線することを検知して地上と各列車間で連続して情報を授受するとともにノイズ電流の影響を低減した情報伝送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, detects the presence of a plurality of trains on one track circuit, continuously transfers information between the ground and each train, and reduces the influence of noise current. The object is to provide a transmission apparatus.

この発明の情報伝送装置は、レールを電気回路の一部とする軌道回路に設けられた情報伝送路と、地上装置と、列車に搭載された車上装置とを有し、情報伝送路は、レールを複数区間に分割して、各区間の一対の前記レールのうち片側のレールと直流阻止コンデンサ及びトランスの２次コイルが直列に接続された閉回路からなり、地上装置は、情報伝送路のトランスの１次コイルに接続された送信器と受信器とを有し、送信器は列車制御情報を含む信号を情報伝送路に送信し、受信器は車上装置から情報伝送路に送信された列車状態情報を含む信号を受信し、車上装置は、送信器と受信器とを有し、送信器は列車状態情報を含む信号を送受信コイルから情報伝送路に送信し、受信器は情報伝送路に送信されている列車制御情報を含む信号を送受信コイルから受信することを特徴とする。 The information transmission device of the present invention includes an information transmission path provided in a track circuit having a rail as a part of an electric circuit , a ground device, and an on-board device mounted on a train. The rail is divided into a plurality of sections, and is composed of a closed circuit in which one of the pair of rails in each section, a DC blocking capacitor, and a secondary coil of a transformer are connected in series. The transmitter has a transmitter and a receiver connected to the primary coil of the transformer. The transmitter transmits a signal including train control information to the information transmission path, and the receiver is transmitted from the onboard device to the information transmission path. A signal including train state information is received, the on-board device has a transmitter and a receiver, the transmitter transmits a signal including train state information from the transmission / reception coil to the information transmission path, and the receiver transmits information. Send a signal containing train control information being sent to the road Characterized by receiving from the signal coil.

前記地上装置の処理装置は、隣接する地上装置の処理装置と列車状態情報を相互に伝送し、受信器で受信した列車状態情報と列車進行方向に隣接する地上装置の処理装置から伝送された列車状態情報から先行列車位置情報とレールを分割した境界位置情報を含む列車制御情報を生成して前記送信器に出力し、車上装置の処理部は、受信器で受信した列車制御情報に基づき列車の制限速度を算出して速度制御部に出力するとともに自列車位置と列車番号及び進行方向を含む列車状態情報を生成して前記送信器に出力する。   The processing device of the ground device mutually transmits the train state information and the processing device of the adjacent ground device, and the train transmitted from the processing device of the ground device adjacent to the train state information received by the receiver and the train traveling direction. Train control information including boundary position information obtained by dividing the preceding train position information and rails from the state information is generated and output to the transmitter, and the processing unit of the onboard device trains based on the train control information received by the receiver. Is calculated and output to the speed control unit, and train state information including the own train position, train number, and traveling direction is generated and output to the transmitter.

また、前記情報伝送路は、レールを複数区間に分割した各区間の一対のレールに対してそれぞれ直流阻止コンデンサ及びトランスの２次コイルを直列に接続した２回路の閉回路で構成することが望ましい。 Further, the information transmission path is preferably constituted by two closed circuits in which a DC blocking capacitor and a secondary coil of a transformer are connected in series to a pair of rails in each section obtained by dividing the rail into a plurality of sections. .

さらに、前記情報伝送路の２回路の閉回路に一方に列車制御情報を送信し、他方に列車状態情報を送信すると良い。   Furthermore, the train control information may be transmitted to one of the two closed circuits of the information transmission path, and the train state information may be transmitted to the other.

また、前記地上装置の送信器は列車制御情報をスペクトラム拡散変調して送信し、前記車上装置の送信器は列車状態情報をスペクトラム拡散変調して送信することが望ましい。   Preferably, the transmitter of the ground device transmits the train control information by performing spread spectrum modulation, and the transmitter of the onboard device transmits the train state information by performing spread spectrum modulation.

この発明は、情報伝送路を、レールを複数区間に分割して、各区間の片側のレールと直流阻止コンデンサ及びトランスの２次コイルが直列に接続された閉回路で構成することにより、地上装置から送信した信号電流のレベルを列車の車軸短絡の影響を受けずにほぼ一定にすることができ、車上装置の受信レベル変動を少なくして地上装置から送信している列車制御情報を安定して受信することができる。   According to the present invention, an information transmission path is constituted by a closed circuit in which a rail is divided into a plurality of sections, and a rail on one side of each section, a DC blocking capacitor, and a secondary coil of a transformer are connected in series. The level of the signal current transmitted from the vehicle can be kept almost constant without being affected by the short-circuit of the axle of the train, and fluctuations in the reception level of the on-board device can be reduced to stabilize the train control information transmitted from the ground device. Can be received.

また、情報伝送路のレールに送信している信号電流は左右のレールが車軸短絡されても列車の後方まで流れるから、一つの軌道回路に複数の列車を在線させることができ、列車の高密度運転を行うことができるとともに一つの軌道回路に在線した複数の列車で情報を授受することができる。   In addition, since the signal current transmitted to the rails of the information transmission path flows to the rear of the train even if the left and right rails are shorted to the axle, multiple trains can be located on a single track circuit. It can be operated and information can be exchanged with a plurality of trains on one track circuit.

また、情報伝送路を、レールを複数区間に分割した各区間の左右のレールに対してそれぞれ直流阻止コンデンサ及びトランスの２次コイルを直列に接続した２回路の閉回路で構成することにより、地上と列車間で情報を２チャンネルで送信することができ信頼性を向上することができる。   Further, the information transmission path is constituted by two closed circuits in which a DC blocking capacitor and a secondary coil of a transformer are connected in series to the left and right rails of each section obtained by dividing the rail into a plurality of sections, thereby Information can be transmitted between trains on two channels, and reliability can be improved.

さらに、地上装置の送信器と車上装置の送信器は情報をスペクトラム拡散変調して送信することにより雑音の影響を低減することができる。   Furthermore, the transmitter of the ground device and the transmitter of the on-vehicle device can reduce the influence of noise by transmitting the information by performing spread spectrum modulation.

図１はこの発明の情報伝送装置の構成を示すブロック図である。図に示すように、情報伝送装置は、軌道回路１Ｔ〜４Ｔ毎に設けられた情報伝送路１ａ〜１ｄと地上装置２ａ，２ｂと、列車３ａ，３ｂに搭載された車上装置４と送受信コイル５とを有する。情報伝送路１は、左右のレール６Ｌ，６Ｒのいずれか一方、例えばレール６Ｌを軌道回路１Ｔ〜４Ｔ毎に分割し、直列に接続されたトランス７ａ〜７ｃの２次コイルと直流阻止コンデンサ８をそれぞれ分割したレール６Ｌの両境界に接続して軌道回路１Ｔ〜４Ｔのレール６Ｌとトランス７の２次コイル及び直流阻止コンデンサ８で閉回路を構成している。地上装置２ａはトランス７ａの１次コイルに接続された軌道回路１Ｔ用の送信器９ａと受信器１０ａと、トランス７ｂの１次コイルに接続された軌道回路２Ｔ用の送信器９ｂと受信器１０ｂと処理装置１１ａを有し、地上装置２ｂはトランス７ｃの１次コイルに接続された軌道回路３Ｔ用の送信器９ｃと受信器１０ｃと、トランス７ｄの１次コイルに接続された軌道回路４Ｔ用の送信器９ｄと受信器１０ｄと処理装置１１ｂを有する。送信器９は列車制御情報を含む信号を情報伝送路１に送信し、受信器１０は車上装置４から情報伝送路１に送信された列車状態情報を含む信号を受信する。処理装置１１は隣接する地上装置２の処理装置１１と条件連絡回路１２で連結され、列車状態情報を相互に伝送し、列車制御情報を送信器９に出力し、受信器１０で受信した列車状態情報を入力する。
FIG. 1 is a block diagram showing the configuration of the information transmission apparatus of the present invention. As shown in the figure, the information transmission device includes information transmission paths 1a to 1d and ground devices 2a and 2b provided for each of the track circuits 1T to 4T, an onboard device 4 mounted on trains 3a and 3b, and a transmission / reception coil. And 5. Information transmission line 1, left and right rails 6L, whereas if Re 6R noise, for example, a rail 6L divided every track circuit 1T～4T, DC blocking capacitor and the secondary coil of the transformer 7a~7c connected in series 8 is connected to both boundaries of the divided rail 6L, and the closed circuit is constituted by the rail 6L of the track circuits 1T to 4T, the secondary coil of the transformer 7, and the DC blocking capacitor 8. The ground device 2a includes a transmitter 9a and a receiver 10a for the track circuit 1T connected to the primary coil of the transformer 7a, and a transmitter 9b and a receiver 10b for the track circuit 2T connected to the primary coil of the transformer 7b. The ground device 2b is used for the track circuit 4T connected to the primary coil of the transformer 7d and the transmitter 9c and the receiver 10c for the track circuit 3T connected to the primary coil of the transformer 7c. Transmitter 9d, receiver 10d, and processing device 11b. The transmitter 9 transmits a signal including train control information to the information transmission path 1, and the receiver 10 receives a signal including train state information transmitted from the on-board device 4 to the information transmission path 1. The processing device 11 is connected to the processing device 11 of the adjacent ground device 2 by the condition communication circuit 12, transmits train state information to each other, outputs train control information to the transmitter 9, and receives the train state received by the receiver 10. Enter information.

車上装置４ａ，４ｂは、それぞれ送信器１３と受信器１４及び処理部１５とを有する。送信器１３は列車状態情報を含む信号を送受信コイル５から情報伝送路１に送信し、受信器１４は情報伝送路１に送信されている列車制御情報を含む信号を送受信コイル５から受信する。処理部１５は受信器１４で受信した列車制御情報に基づき列車３の制限速度を算出して速度制御部（不図示）に出力するとともに自列車の列車状態情報を送信器１３に出力する。   The on-board devices 4a and 4b each have a transmitter 13, a receiver 14, and a processing unit 15. The transmitter 13 transmits a signal including train state information from the transmission / reception coil 5 to the information transmission path 1, and the receiver 14 receives a signal including the train control information transmitted to the information transmission path 1 from the transmission / reception coil 5. The processing unit 15 calculates the speed limit of the train 3 based on the train control information received by the receiver 14 and outputs it to the speed control unit (not shown) and also outputs the train state information of the own train to the transmitter 13.

この情報伝送装置の地上装置２ａで情報伝送路１ａ，１ｂに列車制御情報を送信して車上装置４ａ，４ｂで受信して列車３ａ，３ｂの速度を制御するときの処理を説明する。   A process when the train control information is transmitted to the information transmission paths 1a and 1b by the ground device 2a of the information transmission device and received by the on-board devices 4a and 4b to control the speed of the trains 3a and 3b will be described.

処理装置１１ａは送信器９ａに先行列車位置情報と情報伝送路１ａの列車進入側のレール境界Ｃ１の位置情報及び軌道回路１Ｔの識別番号を含む列車制御情報を出力し、送信器９ｂにも先行列車位置情報と情報伝送路１ｂの列車進入側のレール境界Ｃ２の位置情報及び軌道回路２Ｔの識別番号を含む列車制御情報を出力する。送信器９ａは入力した列車制御情報で変調された信号電流をトランス７ａの１次コイルに送り、トランス７ａの２次コイルから情報伝送路１ａに信号電流Ｉ１を送信し、送信器９ｂは入力した列車制御情報で変調された信号電流をトランス７ｂの１次コイルに送り、トランス７ｂの２次コイルから情報伝送路１ｂに信号電流Ｉ２を送信する。情報伝送路１ａに送信された信号電流Ｉ１はトランス７ａの２次コイルから直流阻止コンデンサ８を通ってレール境界Ｃ２からレール境界Ｃ１に向けてレール６Ｌを流れ、情報伝送路１ｂに送信された信号電流Ｉ２はトランス７ｂの２次コイルから直流阻止コンデンサ８を通ってレール境界Ｃ３からレール境界Ｃ２に向けて流れる。   The processor 11a outputs the train control information including the preceding train position information, the position information on the rail boundary C1 on the train approaching side of the information transmission path 1a, and the identification number of the track circuit 1T to the transmitter 9a, and also precedes the transmitter 9b. Train control information including the train position information, the position information of the rail boundary C2 on the train approach side of the information transmission path 1b, and the identification number of the track circuit 2T is output. The transmitter 9a sends the signal current modulated by the input train control information to the primary coil of the transformer 7a, transmits the signal current I1 from the secondary coil of the transformer 7a to the information transmission path 1a, and the transmitter 9b inputs the signal current. The signal current modulated by the train control information is sent to the primary coil of the transformer 7b, and the signal current I2 is sent from the secondary coil of the transformer 7b to the information transmission path 1b. The signal current I1 transmitted to the information transmission path 1a flows from the secondary coil of the transformer 7a through the DC blocking capacitor 8 through the rail 6L from the rail boundary C2 toward the rail boundary C1, and the signal transmitted to the information transmission path 1b. The current I2 flows from the secondary coil of the transformer 7b through the DC blocking capacitor 8 toward the rail boundary C2 from the rail boundary C3.

軌道回路１Ｔに進入した列車３ａの車上装置４ａの受信器１４は、情報伝送路１ａのレール６Ｌに送信されている信号電流Ｉ１を送受信コイル５ａを介して受信し、受信した信号電流Ｉ１から列車制御情報を抽出して処理部１５に送る。処理部１５は送られている列車制御情報に有する列車進入側のレール境界Ｃ１の位置情報と軌道回路１Ｔの識別番号を検出すると軌道回路１Ｔに列車３ａが進入したと判定し、レール境界Ｃ１の位置情報に速度発電機からの信号を積算して列車３ａの現在位置を算出し、算出した現在位置と列車制御情報に有する先行列車位置情報により先行列車３ｂまでの距離を算出して列車３ａの減速性能に応じた制限速度を算出して出力する。また、軌道回路２Ｔに在線する列車３ｂの車上装置４ｂの受信器１４は、情報伝送路１ｂのレール６Ｌに送信されている信号電流Ｉ２を送受信コイル５ｂを介して受信し、受信した信号電流Ｉ２から列車制御情報を抽出して処理部１５に送る。処理部１５は送られた列車制御情報に基づき列車３ｂの制限速度を算出して出力する。   The receiver 14 of the on-board device 4a of the train 3a that has entered the track circuit 1T receives the signal current I1 transmitted to the rail 6L of the information transmission path 1a via the transmission / reception coil 5a, and from the received signal current I1. Train control information is extracted and sent to the processing unit 15. The processing unit 15 determines that the train 3a has entered the track circuit 1T when detecting the position information of the rail boundary C1 on the train approach side and the identification number of the track circuit 1T included in the train control information being sent, and determines that the train 3a has entered the track circuit 1T. The current position of the train 3a is calculated by adding the signals from the speed generator to the position information, and the distance to the preceding train 3b is calculated from the calculated current position and the preceding train position information included in the train control information. Calculate and output the speed limit according to the deceleration performance. The receiver 14 of the on-board device 4b of the train 3b on the track circuit 2T receives the signal current I2 transmitted to the rail 6L of the information transmission path 1b via the transmission / reception coil 5b, and receives the received signal current. Train control information is extracted from I2 and sent to the processing unit 15. The processing unit 15 calculates and outputs the speed limit of the train 3b based on the train control information sent.

この車上装置４ａ，４ｂで受信するレール６Ｌに送信されている信号電流Ｉ１，Ｉ２は列車３ａ，３ｂの車軸１６ａ，１６ｂによる短絡の影響を受けずにほぼ一定であるから車上装置４ａ，４ｂの受信レベル変動を少なくすることができ、地上装置２ａ，２ｂから送信している列車制御情報を安定して受信することができる。   Since the signal currents I1 and I2 transmitted to the rail 6L received by the on-board devices 4a and 4b are substantially constant without being affected by a short circuit caused by the axles 16a and 16b of the trains 3a and 3b, The fluctuation in the reception level of 4b can be reduced, and the train control information transmitted from the ground devices 2a and 2b can be stably received.

また、情報伝送路１ａ，１ｂのレール６Ｌに送信している信号電流Ｉ１，Ｉ２はレール６Ｌ，６Ｒが車軸１６ａ，１６ｂで短絡されても列車３ａ，３ｂの後方まで流れるから、列車３ｂが在線する情報伝送路１ｂに送信器９ｂから送信する信号電流Ｉ２に列車３ａと列車３ｂに送信する列車制御情報を例えば時分割で送信することにより、列車３ｂが在線する軌道回路２Ｔに列車３ａが進入しても、列車３ａで信号電流Ｉ２を受信することができ、１つの軌道回路２Ｔに複数の列車３ａ，３ｂを在線させることができ、列車３の高密度運転を行うことができる。   Further, the signal currents I1 and I2 transmitted to the rail 6L of the information transmission paths 1a and 1b flow to the rear of the trains 3a and 3b even if the rails 6L and 6R are short-circuited by the axles 16a and 16b. The train 3a enters the track circuit 2T where the train 3b is located, for example, by transmitting the train control information to be transmitted to the train 3a and the train 3b to the signal current I2 to be transmitted from the transmitter 9b to the information transmission path 1b. Even so, the signal current I2 can be received by the train 3a, and a plurality of trains 3a and 3b can be located on one track circuit 2T, so that the train 3 can be operated at high density.

次に車上装置４ａ，４ｂから地上装置２ａに列車状態情報を送信するときの処理を説明する。   Next, processing when the train state information is transmitted from the on-board devices 4a and 4b to the ground device 2a will be described.

軌道回路１Ｔに進入している列車３ａの車上装置４ａの処理部１５は、算出した自列車位置と列車番号及び進行方向を含む列車状態情報を送信器１３に逐次出力する。送信器１３は入力した列車状態情報で変調された信号電流Ｉｔ１を送受信コイル５ａからレール６Ｌに送信する。レール６Ｌに送信された信号電流Ｉｔ１は情報伝送路１ａのレール境界Ｃ２から直流阻止コンデンサ８とトランス７ａの２次コイルに流れる。このトランス７ａの２次コイルに流れる信号電流をトランス７ａの１次コイルを介して地上装置２ａの受信器１０ａで受信し、受信した信号電流Ｉｔ１から列車状態情報を抽出して処理装置１１ａに出力する。処理装置１１ａは入力した列車３ａの列車状態情報を列車進行方向の後方の地上装置に条件連絡回路１２を介して送る。また、軌道回路２Ｔに進入している列車３ｂの車上装置４ｂも同様にして信号電流Ｉｔ２を送受信コイル５ｂから情報伝送路１ｂのレール６Ｌに送信し、送信された信号電流Ｉｔ２を地上装置２ａの受信器１０ｂで受信して列車３ｂの列車状態情報を処理装置１１ａで処理する。   The processing unit 15 of the on-board device 4a of the train 3a entering the track circuit 1T sequentially outputs train state information including the calculated own train position, train number, and traveling direction to the transmitter 13. The transmitter 13 transmits the signal current It1 modulated by the input train state information from the transmission / reception coil 5a to the rail 6L. The signal current It1 transmitted to the rail 6L flows from the rail boundary C2 of the information transmission path 1a to the DC blocking capacitor 8 and the secondary coil of the transformer 7a. The signal current flowing through the secondary coil of the transformer 7a is received by the receiver 10a of the ground device 2a via the primary coil of the transformer 7a, and the train state information is extracted from the received signal current It1 and output to the processing device 11a. To do. The processing device 11a sends the input train state information of the train 3a to the ground device behind the train traveling direction via the condition communication circuit 12. Similarly, the on-board device 4b of the train 3b entering the track circuit 2T transmits the signal current It2 from the transmission / reception coil 5b to the rail 6L of the information transmission path 1b, and the transmitted signal current It2 is transmitted to the ground device 2a. Of the train 3b is processed by the processing device 11a.

このようにしてレール６Ｌを使用して地上装置２ａと車上装置４ａ，４ｂとの間で情報を授受することができる。   In this way, information can be exchanged between the ground device 2a and the on-board devices 4a and 4b using the rail 6L.

また、前記説明では１本のレール６Ｌを使用して地上装置２と車上装置４との間で情報を授受する場合について説明したが、図２に示すように、左右のレール６Ｌ，６Ｒを電線で接続して同じ信号電流を送信しても良い。このように左右のレール６Ｌ，６Ｒに同じ信号電流を送信することにより列車制御情報や列車状態情報の伝送の安定性を向上することができる。   In the above description, the case where information is exchanged between the ground device 2 and the vehicle device 4 using one rail 6L has been described. However, as shown in FIG. The same signal current may be transmitted by connecting with an electric wire. Thus, the stability of transmission of train control information and train state information can be improved by transmitting the same signal current to the left and right rails 6L and 6R.

また、図２に示すように、軌道回路２Ｔに列車３ａと列車３ｂが在線する場合は、情報伝送路１ｂのレール６Ｌに例えば列車３ｂの車上装置４ｂから送信した信号電流Ｉｔ２を列車３ａの車上装置４ａで受信することにより、列車３間で情報の授受を行うことができる。   As shown in FIG. 2, when the train 3a and the train 3b are present on the track circuit 2T, the signal current It2 transmitted from the onboard device 4b of the train 3b, for example, to the rail 6L of the information transmission path 1b is supplied to the train 3a. Information can be exchanged between the trains 3 by receiving the signals on the on-board device 4a.

この情報伝送路１ａ，１ｂに流れる信号電流Ｉ１，Ｉ２と信号電流Ｉｔ１，Ｉｔ２はレール６Ｌの一方向に流れ、帰線電流と同一方向になり、帰線電流等の雑音の影響を受ける。この雑音に耐えて伝送速度を下げることなしに同等以上の符号誤り率を確保するため、レール６Ｌに流す信号電流を耐雑音性能に優れたスペクトラム拡散方式にすることが望ましい。   The signal currents I1 and I2 and the signal currents It1 and It2 flowing in the information transmission paths 1a and 1b flow in one direction of the rail 6L, are in the same direction as the return current, and are affected by noise such as the return current. In order to withstand this noise and ensure a code error rate equal to or higher than that without lowering the transmission rate, it is desirable to use a spread spectrum system in which the signal current flowing through the rail 6L is excellent in noise resistance.

さらに、図３に示すように、左右のレール６Ｌ，６Ｒに異なる信号電流を送信しても良い。この場合、レール６Ｌを使用した情報伝送路１ａＬ〜１ｄＬとレール６Ｒを使用した情報伝送路１ａＲ〜１ｄＲを設け、地上装置２ａには軌道回路１Ｔの情報伝送路１ａＬと軌道回路２Ｔの情報伝送路１ｂＬと信号電流を授受する送信器９と受信器１０と、軌道回路１Ｔの情報伝送路１ａＲと軌道回路２Ｔの情報伝送路１ｂＲと信号電流を授受する送信器９と受信器１０とを設け、地上装置２ｂには軌道回路３Ｔの情報伝送路１ｃＬと軌道回路４Ｔの情報伝送路１ｄＬと信号電流を授受する送信器９と受信器１０と、軌道回路３Ｔの情報伝送路１ｄＲと軌道回路２Ｔの情報伝送路１ｄＲと信号電流を授受する送信器９と受信器１０を設け、車上装置４にも情報伝送路１ａＬ〜１ｄＬと信号電流を授受する送信器１３と受信器１４と、情報伝送路１ａＲ〜１ｄＲと信号電流を授受する送信器１３と受信器１４を設けて、左右のレール６Ｌ，６Ｒに異なる信号電流を流すようにしても良い。この場合、図３に示すように、地上装置２ａ，２ｂから情報伝送路１ａＬ〜１ｄＬと情報伝送路１ａＲ〜１ｄＲに異なる周波数ｆ１と周波数ｆ２で異なる拡散符号ＰＮ１〜６で変調した信号電流を送信し、車上装置４ａ，４ｂからは地上装置２ａ，２ｂと異なる周波数ｆ３と異なる拡散符号ＰＮ３〜５で変調した信号電流を送信することにより、地上と列車３間で多くの情報を安定して送受信することができる。 Furthermore, as shown in FIG. 3, different signal currents may be transmitted to the left and right rails 6L and 6R. In this case, the information transmission paths 1aL to 1dL using the rail 6L and the information transmission paths 1aR to 1dR using the rail 6R are provided, and the information transmission path 1aL of the track circuit 1T and the information transmission path of the track circuit 2T are provided on the ground device 2a. 1bL, a transmitter 9 and a receiver 10 for transmitting and receiving a signal current, an information transmission path 1aR of the track circuit 1T, an information transmission path 1bR of the track circuit 2T, and a transmitter 9 and a receiver 10 for transmitting and receiving a signal current, The ground device 2b includes an information transmission path 1cL of the track circuit 3T, an information transmission path 1dL of the track circuit 4T, a transmitter 9 and a receiver 10 for transmitting and receiving a signal current, an information transmission path 1dR of the track circuit 3T, and a track circuit 2T. An information transmission path 1dR is provided with a transmitter 9 and a receiver 10 for transmitting / receiving a signal current, and an on-board device 4 is also provided with a transmitter 13 and a receiver 14 for transmitting / receiving a signal current to / from the information transmission path 1aL-1dL, and information transmission The receiver 14 is provided with a transmitter 13 for exchanging 1aR~1dR and signal currents, left and right rails 6L, it may be flowed different signal current to 6R. In this case, as shown in FIG. 3, the ground device 2a, 2b from the information transmission path 1aL~1dL information transmission path 1aR~1dR different frequencies f 1 and a signal modulated by a different spreading code PN 1 to 6 frequency f 2 By transmitting the current and transmitting the signal current modulated by the spreading codes PN 3 to 5 different from the on-board devices 4a and 4b with the frequency f 3 different from that of the ground devices 2a and 2b, a lot between the ground and the train 3 is transmitted. Information can be transmitted and received stably.

また、図３に示すように、軌道回路２Ｔに列車３ａと列車３ｂが在線して、地上装置２ａから列車３ａと列車３ｂに列車制御情報を送信する場合、地上装置２ａから送信する信号を時分割して複数のタイムスロットに分けることにより、複数の列車３ａ，３ｂに列車制御情報を伝送することができる。この場合、接続を確立する際には、列車３ａ，３ｂの固有番号や列車番号による振り分け、列車追跡、乱数の使用などによる衝突防止を図ることができる。   As shown in FIG. 3, when the train 3a and the train 3b are on the track circuit 2T and the train control information is transmitted from the ground device 2a to the train 3a and the train 3b, the signal transmitted from the ground device 2a is By dividing and dividing into a plurality of time slots, the train control information can be transmitted to the plurality of trains 3a and 3b. In this case, when establishing the connection, it is possible to prevent collisions by assigning trains 3a and 3b using the unique numbers and train numbers, tracking the train, and using random numbers.

また、左右のレール６Ｌ，６Ｒに異なる信号電流を送信するから、図４に示すように情報伝送路１ａＬ〜１ｄＬと情報伝送路１ａＲ〜１ｄＲが重なり合うようにしても良い。このように情報伝送路１ａＬ〜１ｄＬと情報伝送路１ａＲ〜１ｄＲを重なり合わせることにより、軌道回路１Ｔ〜４Ｔの境界で無信号状態になることの解消や接続確立に必要な時間の確保及び同期状態の維持を図ることができる。   In addition, since different signal currents are transmitted to the left and right rails 6L and 6R, the information transmission paths 1aL to 1dL and the information transmission paths 1aR to 1dR may overlap as shown in FIG. As described above, by overlapping the information transmission paths 1aL to 1dL and the information transmission paths 1aR to 1dR, it is possible to eliminate the no-signal state at the boundary between the track circuits 1T to 4T and to secure the time necessary for establishing the connection and the synchronization state. Can be maintained.

前記説明では情報伝送路１ａＬ〜１ｄＬと情報伝送路１ａＲ〜１ｄＲに列車制御情報を含む信号電流と列車状態情報を含む信号電流を送信する場合について説明したが、いずれか一方、例えば情報伝送路１ａＬ〜１ｄＬに列車制御情報を含む信号電流を送信し、他方の情報伝送路１ａＲ〜１ｄＲに列車状態情報を含む信号電流を送信しても良い。このように列車制御情報を含む信号電流と列車状態情を含む信号電流を異なる情報伝送路で送信することにより、地上装置２と車上装置４で安定して情報を送受信することができる。   In the above description, a case has been described in which a signal current including train control information and a signal current including train state information are transmitted to the information transmission paths 1aL to 1dL and the information transmission paths 1aR to 1dR. The signal current including the train control information may be transmitted to ˜1 dL, and the signal current including the train state information may be transmitted to the other information transmission paths 1 a R to 1 dR. As described above, by transmitting the signal current including the train control information and the signal current including the train state information through different information transmission paths, the ground device 2 and the on-board device 4 can stably transmit and receive information.

また、鉄道の線路には、駅や車両所などに分岐器が設けられる。この分岐器を含む個所の軌道回路は絶縁を挿入して構成している。そこで例えば図５に示すように、１番線と２番線と３番線に分岐した線路の分岐器が存在する個所でトレグレールの部分に信号電流を通すためのレールボンド２０を接続し、クロッシングの部分に分岐線側と基準線側を絶縁するレール絶縁２１を設け、１番線と２番線と３番線の左右のレールＬ，Ｒで異なる信号電流を流す情報伝送路１を構成することにより、インピーダンスボンドを使用しない、いわゆる無絶縁軌道回路を実現することができる。また、伝送する情報が少なく、左右のレールＬ，Ｒで同じ信号電流を流すとすれば、レールボンド２０及びレール絶縁２１をなくすことができ、無絶縁化を図ることができる。   In addition, a branching device is provided on a railway track at a station or a vehicle place. The track circuit including the branching device is constructed by inserting insulation. Therefore, for example, as shown in FIG. 5, a rail bond 20 for passing a signal current is connected to the tregreil part at a place where the branching device of the line branched to the first line, the second line, and the third line exists, and the crossing part is connected. By providing the rail insulation 21 that insulates the branch line side and the reference line side, and configuring the information transmission path 1 that allows different signal currents to flow in the left and right rails L and R of the first line, the second line, and the third line, A so-called non-insulated track circuit that is not used can be realized. Further, if there is little information to be transmitted and the same signal current is allowed to flow in the left and right rails L and R, the rail bond 20 and the rail insulation 21 can be eliminated, so that no insulation can be achieved.

この発明の情報伝送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 information transmission apparatus of this invention. 第２の情報伝送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 2nd information transmission apparatus. 第３の情報伝送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 3rd information transmission apparatus. 第４の情報伝送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 4th information transmission apparatus. 第５の情報伝送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 5th information transmission apparatus. 従来に軌道回路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 track circuit conventionally.

符号の説明Explanation of symbols

１；情報伝送路、２；地上装置、３；列車、４；車上装置、５；送受信コイル、
６；レール、７；トランス、８；直流阻止コンデンサ、９；送信器、１０；受信器、
１１；処理装置、１２；条件連絡回路、１３；送信器、１４；受信器、
１５；処理部、１６；車軸、２０；レールボンド、２１；レール絶縁。 1; Information transmission path, 2; Ground device, 3; Train, 4; On-board device, 5;
6; rail, 7; transformer, 8; DC blocking capacitor, 9; transmitter, 10; receiver,
11; Processing device, 12; Condition communication circuit, 13; Transmitter, 14; Receiver,
15; Processing part, 16; Axle, 20; Rail bond, 21; Rail insulation.

Claims (5)

レールを電気回路の一部とする軌道回路に設けられた情報伝送路と、地上装置と、列車に搭載された車上装置とを有し、
前記情報伝送路は、前記レールを複数区間に分割して、各区間の一対の前記レールのうち片側のレールと直流阻止コンデンサ及びトランスの２次コイルが直列に接続された閉回路からなり、
前記地上装置は、前記情報伝送路のトランスの１次コイルに接続された送信器と受信器とを有し、前記送信器は列車制御情報を含む信号を前記情報伝送路に送信し、前記受信器は前記車上装置から前記情報伝送路に送信された列車状態情報を含む信号を受信し、
前記車上装置は、送信器と受信器とを有し、前記送信器は列車状態情報を含む信号を送受信コイルから前記情報伝送路に送信し、前記受信器は前記情報伝送路に送信されている列車制御情報を含む信号を送受信コイルから受信することを特徴とする情報伝送装置。 An information transmission path provided in a track circuit having a rail as a part of an electric circuit , a ground device, and an on-board device mounted on a train,
It said information transmission path, divides the rail to multiple sections consist closed circuit DC blocking capacitor and the transformer secondary coil and one side of the rails are connected in series of the pair of the rails of each section,
The ground device includes a transmitter and a receiver connected to a primary coil of a transformer of the information transmission path, and the transmitter transmits a signal including train control information to the information transmission path, and receives the signal. The device receives a signal including train state information transmitted from the on-board device to the information transmission path,
The on-board device has a transmitter and a receiver, and the transmitter transmits a signal including train state information from a transmission / reception coil to the information transmission path, and the receiver is transmitted to the information transmission path. An information transmission device that receives a signal including train control information from a transmission / reception coil. 前記地上装置の処理装置は、隣接する地上装置の処理装置と列車状態情報を相互に伝送し、前記受信器で受信した列車状態情報と列車進行方向に隣接する地上装置の処理装置から伝送された列車状態情報から先行列車位置情報とレールを分割した境界位置情報を含む列車制御情報を生成して前記送信器に出力し、
前記車上装置の処理部は、前記受信器で受信した列車制御情報に基づき列車の制限速度を算出して速度制御部に出力するとともに自列車位置と列車番号及び進行方向を含む列車状態情報を生成して前記送信器に出力する請求項１記載の情報伝送装置。 The processing device of the ground device mutually transmits the train state information and the processing device of the adjacent ground device, and is transmitted from the processing device of the ground device adjacent to the train state information received by the receiver and the train traveling direction. Generate train control information including boundary position information obtained by dividing the preceding train position information and rails from the train state information and output to the transmitter,
The processing unit of the on-board device calculates the train speed limit based on the train control information received by the receiver and outputs the train speed limit to the speed control unit, and the train state information including the own train position, the train number, and the traveling direction. The information transmission apparatus according to claim 1, wherein the information transmission apparatus is generated and output to the transmitter. 前記情報伝送路は、前記レールを複数区間に分割した各区間の一対のレールに対してそれぞれ直流阻止コンデンサ及びトランスの２次コイルを直列に接続した２回路の閉回路からなる請求項１又は２記載の情報伝送装置。 3. The information transmission path comprises two closed circuits in which a DC blocking capacitor and a secondary coil of a transformer are connected in series to a pair of rails in each section obtained by dividing the rail into a plurality of sections. The information transmission apparatus described. 前記情報伝送路の２回路の閉回路に一方に列車制御情報を送信し、他方に列車状態情報を送信する請求項３記載の情報伝送装置。 The information transmission device according to claim 3 , wherein train control information is transmitted to one of the two closed circuits of the information transmission path, and train state information is transmitted to the other. 前記地上装置の送信器は列車制御情報をスペクトラム拡散変調して送信し、前記車上装置の送信器は列車状態情報をスペクトラム拡散変調して送信する請求項１乃至４のいずれかに記載の情報伝送装置。 The transmitter of the ground device transmits to spread spectrum modulation train control information, the transmitter of the vehicle on the device information according to any one of claims 1 to 4 transmits the train status information spread spectrum modulation to Transmission equipment.
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