JPH0578463B2 - - Google Patents

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention is applicable to trains, such as automatic train control devices (hereinafter referred to as ATC devices) and automatic train operating devices (hereinafter referred to as ATO devices). The present invention relates to a train control/train operation information transmission device that transmits train control information or train operation schedule information between an onboard device provided on the train and a ground device provided on the ground.

<Prior Art> In a conventional information transmission device of this type, when information is transmitted from the ground to onboard a train, the train number is used as key information, and this key information is received and deciphered on the train.

<Problem to be solved by the invention> However, the present information on the front blocked section, slope information, etc. required for ATC devices and ATO devices,
Much of the point information, route information, etc. is unrelated to the train number.

In addition, it is necessary to accurately correlate train numbers and train positions and keep track of them on the ground side, which requires a train tracking device on the ground side.

The present invention solves the above-mentioned conventional problems and provides an information transmission device that can configure an extremely reliable information transmission system with a simple system configuration for information transmission between the ground and onboard. The purpose is to

<Means for Solving the Problems> In order to solve the above-mentioned problems, the present invention provides a train control/train operation information transmission device including a ground device and a ground device, wherein the ground device includes a loop antenna and a train operation information transmission device. It has a detection device and a transmitter, the loop antenna is installed at each entry point of each blockage section, the train detection device detects the train position for each blockage section, and the transmitter The onboard device transmits train position information based on a train detection signal given from a train detection signal and at least one of train control information and train operation information to the loop antenna, and the onboard device includes a receiving section and a train position detection signal. The train detection device detects and stores the own train position by receiving signals from markers installed on the ground for each blocked section using an antenna, and the receiving section detects and stores the own train position. It is determined whether the train position information received through the loop antenna from the ground equipment matches the train position information detected by the train position detection device, and when they match, the train control information (hereinafter referred to as ATC) is determined. (hereinafter referred to as ATO information) or the train operation information (hereinafter referred to as ATO information).

<Function> In the present invention, with the above configuration, when transmitting information between the ground and the train, the blocked section where the train is located is detected both on the ground and on the train, and this blocked section information is used as key information, Transmit information.
Since ATO information and ATC information are given to the blocked section, this information transmission method of the present invention matches actual information transmission. Therefore, an ATO system or an ATC system with extremely high reliability of information can be constructed.

<Embodiment> FIG. 1 is a block diagram schematically showing the configuration of a train control/train operation information transmission device according to the present invention. In the figure, 1 is a track, and 2 is a train running on the track 1. The track 1 is divided into a large number of closed sections 1T to nT at appropriate intervals. Blocked section 1
Loop antennas 3 ₁ to 3n are installed at each approach point of T to nT.
is provided. Each of the loop antennas 3 ₁ to 3n is coupled to common signal lines 5 ₁ and 5 ₂ through couplers 4 ₁ to 4n, respectively. signal line 5
₁ and 5 ₂ are connected to the ground equipment 7 through a coupler 6. The ground device 7 includes a train detection device 8, an information transmitter 9, and a receiver 10. The train detection device 8 is a device that detects which of the blocked sections 1T to nT the train 2 has entered. Various types of such train detection devices are known, but in this example, a train detection method using an axle short circuit is shown. Signal S from the boundary side
The transmitter 8 ₁ transmits the signal R, and the receiver 8 ₂ receives the signal R on the rear occlusion boundary side. FIG. 2 is a diagram showing a specific example of this, in which a signal S is transmitted from a transmitter 81 to a coil ₈₃ provided at the front closed boundary of each closed section _1T to nT, and the signal S is sent through the track 1. The coming signal R is connected to each blockage section 1.
Coil 8 installed on the rear occlusion boundary side of T~nT ₄
The configuration is such that the receiver ₈₂ receives the signal through the receiver.
When the train 2 enters the blocked section, its axle short-circuits the track 1-1, so the signal S transmitted from the transmitter ₈₁ cannot be received by the receiver ₈₂ , and the output side of the receiver ₈₂ Relay TR connected to is restored. This detects that the train has entered the blocked section. TR ₁ to TRn in Fig. 1 are relays corresponding to each blockage section 1T to nT, and TR ₁₁ to TRn
TRn ₁ is the contact point, S ₁ ~ Sn is the closed section 1T ~ nT
The signals R 1 to Rn are transmitted from the receiver 8 ₁ to each of the signals R ₁ to Rn are the signals received by the receiver 8 ₂ .

Next, the information transmission section 9 includes a train position detection device 9 ₁ , an information generation device 9 ₂ , an encoder 9 ₃ , a modulator 9 ₄ , and the like. Train position detection device 9 ₁
detects the blocked section into which the train 1 has entered and the time of entry into this blocked section. Each contact TR ₁₁ to TRn ₁ of the relays TR ₁ to TRn, which are the outputs of the train detection device ₈ , is connected to the input side _of the train position detection device ₉₁ . Depending on whether the system has been restored, it is possible to detect the blockage section of the train approach. Furthermore, by detecting the recovery edges of the contacts TR ₁₁ to TRn ₁ , it is also possible to detect when the vehicle enters the blocked section.

The output information generating device ₉₂ is a part that generates ATO information, ATC information, etc. The ATO information includes, for example, ATC display information, slope elevation, point information, route information, etc. of a blocked section ahead of the blocked section in which the train 1 is present.

The encoder ₉₃ encodes and transmits ATO information or ATC information corresponding to the train approach closed section specified by the signal from the train position detection device ₉₁ , out of the information given from the output information generator ₉₂ . do. As an encoding method, for example, as shown in FIG. 3, the address of the blocked section into which the train 1 has entered is added to information A, such as ATO information or ATC information, to be transmitted. Reference numeral C in FIG. 3 is synchronization information. Furthermore, if the train 1 is in a plurality of closed sections, information on each closed section is transmitted at appropriate time intervals. For example, if train 1 is entering blocked sections 1T and 5T,
As shown in FIG. 4, information corresponding to the blocked sections 1T and 5T is transmitted at time intervals _t2 .

The modulator ₉₄ subjects the encoded signal from the encoder ₉₃ to amplitude modulation, for example, and outputs an information signal _f1 . The information signal f ₁ is applied to the signal lines 5 ₁ and 5 ₂ through the switch 11 and the coupler 6, and is further supplied from the signal lines 5 ₁ and 5 ₂ to each of the loop antennas 3 ₁ to 3n.

The receiving section 10 includes a multiplexer 10 ₁ , a decoder 10 ₂ , an information confirmation section 10 ₃ , and the like.

Next, the on-vehicle device will be explained. FIG. 5 is a block diagram of the on-board device. In the figure, 12 is an on-board antenna, 13 is a receiving section, 14 is a transmitting section, and 15
1 is a train position detection device, and 16 is a switch. The receiving section 13 includes a demodulator 13 ₁ , a decoder 13 ₂ , an output information section 13 _{3 ,} etc., and receives the information signal f ₁ received through the loop antennas 3 ₁ to 3n and the on-board antenna 12 to the demodulator. The demodulated signal is demodulated by a decoder 13 ₁ , and the information contained in the demodulated signal is decoded by a decoder 13 ₂ . The decoded information is input to the output information section 13 ₃ , and the train number, ATO information,
ATC information etc. will be confirmed.

The transmitter 14 includes an input information section 14 ₁ and an encoder 1
₄₂ , a modulator ₁₄₃ , etc.
In the input information section 14 ₁ , the encoder 14 ₂ encodes the confirmation signal given from the output information section 13 ₃ .
It is further modulated by the modulator 14 ₃ to produce a modulation confirmation signal f2.
(The same frequency f ₁ may be used if time-division processing is performed.) is transmitted from the on-board antenna 12 to the ground equipment 7 side.

The train position detection device 15 detects, for example, a blocked section 1T.
Markers installed on the ground every ~nT (not shown)
The train position is detected and stored by receiving the signal from the antenna 151 by the antenna ₁₅₁ . This train position detection signal is input to the output information section 13 ₃ and the input information section 14 ₁ .

Next, the operation will be explained. For example, if the train 1 enters a blocked section 1T, the vehicle detection device 8
The relay TR ₁ is restored, its contact TR ₁₁ falls, and the train position detection device 9 ₁ detects that the train 1 has entered the blocked section 1T. In response to this detection signal, the encoder ₉₃ selects the ATO corresponding to the train approach blockage section 1T specified by the signal from the train position detection device ₉₁ , out of the information given from the output information generation device ₉₂ . information or
The ATC information is encoded, further modulated by a modulator ₉₄ , and transmitted as an information signal _f1 from signal lines ₅₁ and ₅₂ to each loop antenna ₃₁ to 3n.

Among the information signals f ₁ transmitted to each loop antenna 3 ₁ to 3n, the loop antenna 3 ₁ of the closed section 1T where the train 1 is located is coupled with the on-board antenna 12,
It is taken into the on-board device. In the on-board device, the information signal f ₁ received by the on-board antenna 12 is sent to a demodulator 13 ₁
The signal is demodulated by the decoder 132 and decoded by the decoder ₁₃₂ .

Here, in the on-board device, the train position detection device 15
It is detected that the own train is entering the blocked section 1T. On the other hand, the address of the blocked section into which the train 1 is entering is added to the information signal _f1 transmitted from the ground equipment 7 to the loop antennas ₃₁ to 3n. Therefore, in the on-board device, the output information unit 13 ₃ determines whether the blocked section designated by the information signal f ₁ and the blocked section detected by the own train position detection device 15 match. If they match, the input information section ₁₄₁ transmits a confirmation signal. This confirmation signal is encoded by an encoder 14 ₂ and further modulated by a modulator 14 ₃ .
The modulated confirmation signal f ₂ has a different frequency from the information signal f ₁ from the ground device 7. (In the case of time division processing, the same frequency f ₁ may be used.) The confirmation signal f ₂ is transmitted from the modulator 14 ₃ to the on-board antenna 12 through the switch 15, is received by the loop antenna 3 ₁ , and is further transmitted to the signal line. It is input to the ground equipment 7 through 5 ₁ and 5 ₂ . In the ground equipment 7, the confirmation signal f ₂ input through the switch 11
is demodulated by the demodulator 10 ₁ of the receiving section 10 and decoded by the decoder 10 ₂ , and then compared with the information from the transmitting section 9 by the information checking section 10 ₃ for control and display.

When a train exists in multiple blocked sections,
As shown in Figure 4, information signals directed to each closed section
A time division process is performed in which f ₁ is transmitted at time intervals t ₂ and confirmation signals f ₂ for each blockage section are transmitted using the untransmitted time intervals t ₂ .

As described above, in the present invention, when transmitting information between the ground and the train, the blocked section where the train 1 is located is detected both on the ground and on the train, and this blocked section information is used as key information to transmit the information. transmission.
Since ATO information, ATC information, etc. are given to the blocked section, this information transmission method of the present invention matches actual information transmission. Therefore, an ATO system or an ATC system with extremely high reliability of information can be constructed. Moreover, for many blocked sections,
Since information can be transmitted using the pair of signal lines 5 ₁ and 5 ₂ , the information transmission line can be simplified. Furthermore, advantages such as information transmission between the vehicle and the ground can be achieved using two frequencies f ₁ and f ₂ .

<Effects of the Invention> As described above, according to the present invention, information transmission between the ground and the vehicle can be carried out with a simple system configuration.
It is possible to provide a train control/train operation information transmission device that can constitute an extremely reliable information transmission system.

[Brief explanation of drawings]

FIG. 1 is a block diagram schematically showing the configuration of a train control/train operation information transmission device according to the present invention, and FIG.
FIG. 3 is a circuit diagram of the main part of the train detection device, FIG. 3 is a diagram showing the information encoding method, FIG. 4 is a diagram explaining the information transmission method, and FIG. 5 is a block diagram of the on-board device. DESCRIPTION OF SYMBOLS 1...Track, 2...Train, _31-3n ...Loop antenna, _51,52 ...Signal line, ₇ ...Ground equipment, 8...Train detection section, 9...Information transmission section, 10
...Receiving section, 12...Onboard antennas 1, 5...Train position detection device.

Claims (1)

[Claims] 1. Train control system including ground equipment 7 and on-board equipment.
It is a train operation information transmission device, and the ground device 7 includes loop antennas 3 ₁ to 3n.
, a train detection device 8, and a transmitter 9, and the loop antennas 3 ₁ to 3n are connected to each blocked section 1T to nT.
The train detection device 8 detects the train position in each blockage section 1T to nT, and the transmitter 9 transmits train position information based on the train detection signal given from the train detection device 8. and at least one of train control information and train operation information to the loop antennas 3 ₁ to 3n, the onboard device includes a receiving section 13 and a train position detection device 15, and the onboard device includes a receiving section 13 and a train position detection device 15, and The train detection device 15 detects and stores the own train position by receiving signals from markers installed on the ground for each blockage section 1T to nT through the antenna ₁₅₁ , and the receiving section 13 detects and stores the own train position. train position information received through the loop antennas 3 ₁ to 3n from the ground equipment 7;
A train control/train operation information transmission device that determines whether or not the train position information detected by the train position detection device 15 matches, and when they match, takes in the train control information or the train operation information.