JP6964460B2 - Transmitter, train control information transmission system, and train control information transmission method - Google Patents

Description

The present invention relates to a transmitter, a train control information transmission system, and a train control information transmission method. It is suitable for application to the method.

Conventionally, ATC (Automatic Train Control) equipment and ATS (Automatic)
In a train control system such as a train stop) device, a ground control device repeatedly transmits data (telegram) including speed limit information and position information at regular intervals, and the on-board control device uses the received data. Control the brakes of the train. It is common to use a track circuit (rail) for the transmission line of a message.

The types of track circuits are roughly divided into insulated track circuits that are electrically insulated by intervening insulators between track circuits and non-insulated track circuits that are not electrically insulated. , Insulated track circuits tended to be adopted.

Since the insulated track circuit electrically insulates each track circuit, train control information can be constantly transmitted regardless of the train presence status. Since there are many advantages such as being able to transmit train detection signals and train control signals at the same frequency, and being able to constantly monitor track circuit disconnection detection and transmitter abnormality monitoring, the constant transmission method is adopted for insulated track circuits. NS.

Here, in the insulated track circuit in which the constant transmission method is adopted, when the train passes through the track circuit boundary, the on-board control device continuously transmits partial information of each train control information from the track circuit before and after the boundary. There was a risk that a so-called message merge problem would occur. More specifically, when the transmission timings in the information transmission cycles of the track circuits before and after the boundary match, the messages transmitted from different track circuits are merged into one train control information, so that the on-board control device can be used. The problem is that the wrong train control information is handled.

As a technique for solving such a message merging problem, for example, in Patent Document 1, it is proposed to set a transmission timing to a track circuit for each transmitter and transmit train control information at a timing different from that of an adjacent track circuit. Has been done. In the train control information transmission system disclosed in Patent Document 1, the data length of the merged train control information is registered in advance in the on-board control device by making the information transmission timing of the track circuit before and after the boundary different. Therefore, the on-board control device can determine that the merged train control information is invalid information and discard it.

However, in the case of the train control information transmission system disclosed in Patent Document 1, each ground control is performed at the boundary between two track circuits (hereinafter referred to as a logic section boundary), each of which is controlled by a different ground control device. Since the devices are not synchronized, the track circuits before and after the logical section boundary are not always initialized to different information transmission timings, and there is a possibility that a message merging problem may occur (asynchronous message merging problem). ..

For this asynchronous message merging problem, the on-board control device is equipped with a means for accurately grasping the position of the logical section boundary, and voluntarily discards the train control information received at the timing of passing through the logical section boundary. If the processing can be performed, it is considered that the problem can be solved and train control using incorrect train control information can be avoided. In the case of an insulated track circuit, the position of the boundary of the logic part coincides with the position of the insulator between the track circuits and is physically determined. Therefore, the on-board control device can accurately grasp the position of the boundary of the logic unit, and can easily match the timing of passing through the boundary of the logic unit with the timing of spontaneously discarding the telegram. Method can be realized.

Japanese Patent No. 4550475

By the way, in recent years, from the viewpoint of physical cost and maintenance cost related to the installation of an insulator, the adoption of a train control system in a non-insulated track circuit has been progressing in place of the above-mentioned insulated track circuit.

The non-insulated track circuit has a problem that signals between the track circuits interfere with each other when the constant transmission method is adopted. Although this problem can be avoided by allocating different frequencies to adjacent track circuits, there are adverse effects such as a limited usable frequency band and an increase in equipment cost. Therefore, the non-insulated track circuit often employs a so-called step-on transmission method in which train control information is transmitted only when the presence of a train is detected.

In the non-insulated track circuit in which the step-in transmission method is adopted, after the train enters a specific track circuit, the train is temporarily in a non-signal state in which no signal is received until the approach is detected by the ground control device. Since the train control information for the track circuit is transmitted from the beginning, it has been considered that the message merging problem does not occur.

However, at the boundary of the logic part of the non-insulated track circuit, the device that generates the train control information to be transmitted to the track circuit in front of the boundary and the device that permits the output of the train control information are not synchronized, so that the train control for the track circuit is not synchronized. There is no guarantee that the information will be sent from the beginning. That is, even in the non-insulated track circuit, the telegram merging problem may occur at the boundary of the logic part as in the insulated track circuit (the telegram merging problem due to asynchronous).

In the above-mentioned explanation of the insulated track circuit, the solution to this asynchronous telegram merging problem is that the on-board control device voluntarily discards the telegram at the timing of passing through the boundary of the logic unit. However, in the case of a non-insulated track circuit, even if the solution is applied, the problem of "boundary deviation" can be sufficiently solved because of the problem of "boundary deviation" as described in detail below. It was difficult.

In the case of a non-insulated track circuit, there is no insulation between the track circuits, and the logic section boundary cannot be physically determined. In the non-insulated track circuit, the on-board control device recognizes the position where the train detection signal receiver is physically connected to the rail (so-called driving point) as the boundary of the track circuit. On the other hand, the ground control device logically recognizes the logical section boundary by determining the level of the train detection signal received from the track circuits on both sides of the boundary by the train detection signal receiver. That is, the actual boundary of the logical part recognized by the ground control device does not always coincide with the driving point, and fluctuates within a certain distance before and after the driving point (so-called boundary deviation). Due to this boundary deviation, the logical part boundary recognized by the on-board control device and the logical part boundary recognized by the ground control device may differ, and the timing at which the train passes the actual logical part boundary recognized by the ground control device. It becomes difficult to match the timing with which the on-board control device voluntarily discards the message.

The present invention has been made in consideration of the above points, and is a transmitter and train control that can solve the message merging problem even at the boundary of the logic part of the non-insulated track circuit and identify appropriate train control information. This is an attempt to propose an information transmission system and a train control information transmission method.

In order to solve such a problem, in the present invention, the train control information for transmitting the train control information for train control from the ground control device to the on-board control device mounted on the train traveling on the track circuit of the non-insulated track circuit system is transmitted. In the transmission system, a plurality of trains are installed along the track circuit, and the train control information received from the ground control device is transmitted to the on-board control device via the track circuit, and is adjacent to the track circuit boundary on the traveling direction side of the logic section. Provided is a transmitter capable of transmitting track circuit transmission data to the track circuit arranged therein. This transmitter is a first track circuit transmission data including a transmission packet receiving unit that receives a transmission packet including train control information transmitted from a ground control device and a train control information of the transmission packet received by the transmission packet receiving unit. And, which of the second track circuit transmission data which is not identified as train control information when received by the on-board control device is transmitted to the track circuit, or which of the track circuit transmission data is not transmitted is selected. The track circuit transmission data transmission unit includes a track circuit transmission data transmission unit that can be executed, and the track circuit transmission data transmission unit is the second when the train passes through the track circuit boundary of the logic unit section and enters the track circuit. The first track circuit transmission data is transmitted to the track circuit when a predetermined condition is satisfied after the train enters the track circuit. And.

Further, in order to solve such a problem, in the present invention, it is a train control information transmission system adopted in a track circuit of a non-insulated track circuit system, and train control information for train control is included in a transmission packet in a network. A transmitter that can transmit track circuit transmission data including train control information to the track circuit based on the ground control device to be transmitted and multiple transmission packets installed along the track circuit and received from the ground control device via the network. A train equipped with an on-board control device mounted on a train traveling on a track circuit and performing train control using train control information based on track circuit transmission data received from a transmitter via the track circuit. A control information transmission system is provided. In this train control information transmission system, in particular, the transmitter has a transmission packet receiver that receives a transmission packet transmitted from the ground control device, and a first track that includes train control information of the transmission packet received by the transmission packet receiver. Whether to transmit the circuit transmission data or the second track circuit transmission data that is not identified as train control information when received by the on-board control device to the track circuit, or not to transmit any track circuit transmission data. With respect to the track circuit arranged adjacent to the track circuit boundary on the traveling direction side of the logic section of the transmitter , which has a track circuit transmission data transmission unit capable of selecting and executing. In the transmitter capable of transmitting the track circuit transmission data, the track circuit transmission data transmission unit receives the second track when the train passes through the track circuit boundary of the logic unit section and enters the track circuit. The circuit transmission data is transmitted to the track circuit, and when a predetermined condition is satisfied after the train enters the track circuit, the first track circuit transmission data is transmitted to the track circuit. ..

Further, in order to solve such a problem, in the present invention, the train control information for train control is transmitted from the ground control device to the train traveling on the track circuit of the non-insulated track circuit system via the transmitter. Top A train control information transmission method by a train control information transmission system to be transmitted to a control device is provided. This train control information transmission method includes a transmission packet reception step of receiving a transmission packet including train control information transmitted from the ground control device in the transmitter, and train control information of the transmission packet received in the transmission packet reception step. Which of the first track circuit transmission data and the second track circuit transmission data which is not identified as train control information when received by the on-board control device is transmitted to the track circuit, or which track circuit transmission data is transmitted. The track circuit is provided with a track circuit transmission data transmission step that can be executed by selecting whether or not to transmit, and is arranged adjacent to the track circuit boundary on the traveling direction side of the logic section of the transmitter. On the other hand, in a transmitter capable of transmitting the track circuit transmission data, in the track circuit transmission data transmission step by the transmitter, the train passed through the track circuit boundary of the logic section and entered the track circuit. At that time, the second track circuit transmission data is transmitted to the track circuit, and when a predetermined condition is satisfied after the train enters the track circuit, the first track circuit transmission data is transmitted to the track circuit. It is characterized by transmitting.

According to the present invention, the problem of telegram merging can be solved even at the boundary of the logic part of the non-insulated track circuit, and appropriate train control information can be identified.

It is a figure which shows the overall configuration example of the train control information transmission system which concerns on 1st Embodiment of this invention. It is a figure which shows the detailed configuration example of the train control information transmission system shown in FIG. It is a figure which shows the structural example of the transmission packet and the track circuit transmission data. It is a figure for demonstrating an example of the detection method of a train presence position. It is a figure for demonstrating the transmission state of a telegram when passing through a track circuit boundary in the case which it is assumed that one conventional technique is applied. It is a figure for demonstrating the transmission state of the telegram when passing through the track circuit boundary in the train control information transmission method which concerns on 1st Embodiment. It is a figure for demonstrating the transmission state of the telegram when passing through the track circuit boundary in the train control information transmission method which concerns on 2nd Embodiment.

Hereinafter, one embodiment of the present invention will be described in detail with reference to the drawings.

(1) First Embodiment (1-1) Configuration of Train Control Information Transmission System FIG. 1 is a diagram showing an overall configuration example of a train control information transmission system according to the first embodiment of the present invention. Is.

As illustrated in FIG. 1, the train control information transmission system 100 according to the first embodiment includes a plurality of ground control devices 1 (individually, ground control devices 1-1, 1-2, ...). A plurality of networks 2 (individually, networks 2-1, 2-2, ...), a plurality of transmitters 3 (individually, transmitters 3-1, ..., 3-n, ...), And a plurality of transmitters. It is configured to include a track circuit 4 (individually, track circuits 4-1, ..., 4-n, ...), an on-board control device 5, and a plurality of inter-network communication devices 8.

Here, the inter-network communication device 8 is a communication device that connects adjacent networks 2. When communicating with the transmitter 3 connected to the network 2 under the adjacent ground control device 1, the ground control device 1 performs communication via the inter-network communication device 8. Further, all the track circuits 4 are non-insulated track circuits.

Then, the on-board control device 5 is used as a train 50 that sequentially travels through a plurality of track circuits 4 (individually, track circuits 4-1, ..., 4-k, 4- (k + 1), ..., 4-n, ...). It will be installed. The detailed configuration of the on-vehicle control device 5 will be described later with reference to FIG.

Further, FIG. 1 shows track circuit boundaries 6 and 7 for the boundaries of adjacent track circuits 4. Here, the track circuit boundary 6 represents a boundary (normal track circuit boundary) by the track circuit 4 controlled by the same ground control device 1. On the other hand, the track circuit boundary 7 represents a boundary (track circuit boundary of the logic unit boundary) by the track circuit 4 controlled by a different ground control device 1. In other words, the plurality of ground control devices 1 are arranged so as to control different logic section sections of the track circuit 4, and the normal track circuit boundary 6 corresponds to the boundary of the track circuit 4 in the same logic section. However, the track circuit boundary 7 of the logic part boundary corresponds to the boundary of these logic part sections.

Specifically, for example, in FIG. 1, one logic section composed of track circuits 4-1 to 4-k and another logic composed of track circuits 4- (k + 1) to 4-n. The sections are adjacent to each other, the former is controlled by the ground control device 1-1, and the latter is controlled by the ground control device 1-2. Further, the ground control device 1-1 controls the transmitters 3-1 to 3-k, and the ground control device 1-2 controls the transmitters 3- (k + 1) to 3-n. However, as will be described later, the control ranges of the ground control device 1-1 and the ground control device 1-2 are not completely independent. For example, a transmission packet transmitted from the ground control device 1-1. 110 (see FIG. 2) has a connection such that it is received by the transmitter 3- (k + 1) via the inter-network communication device 8.

FIG. 2 is a diagram showing a detailed configuration example of the train control information transmission system shown in FIG. Although the functional configuration of the ground control device 1-2 is illustrated in FIG. 2, it is assumed that all the ground control devices 1 have the same configuration. Further, it is assumed that all the transmitters 3 also have the functional configuration exemplified by the transmitter 3- (k + 1).

As shown in FIG. 2, the ground control device 1 receives a train detection signal (see FIG. 4) to detect the current position of the train 50, and train control such as speed limit information and position information. The train control information creation unit 12 that creates the information CI, the transmission packet creation unit 13 that creates the transmission packet 110 including the train control information CI or the transmitter output permission information PI, and the transmission packet to the transmitter 3 via the network 2. It is configured to include a transmission packet transmission unit 14 for transmitting 110. Of these, the method of detecting the position of the train 50 by the train detection unit 11 will be described in detail later with reference to FIG.

The transmitter 3 has a transmission packet receiving unit 31 that receives the transmission packet 110 transmitted from the ground control device 1, and an orbital circuit transmission data creating unit 32 that can create an orbital circuit transmission data 120 including a train control data CD. The track circuit transmission data transmission unit 33 that transmits the track circuit transmission data 120 to the track circuit 4, the track circuit transmission data output control unit 34 that controls the output of the transmitter 3, and the storage that records the track circuit transmission data 120. It is configured to include the device 35.

Of these, the transmission packet receiving unit 31 has a function of recognizing the type of the received transmission packet 110, and performs an operation according to the recognized type. Specifically, when the received transmission packet 110 includes the train control information CI, the transmission packet receiving unit 31 transmits the train control information CI to the track circuit transmission data creating unit 32 and receives the train control information CI. When the transmission packet 110 includes the transmitter output permission information PI, the transmitter output permission information PI is transmitted to the track circuit transmission data output control unit 34.

The track circuit transmission data creation unit 32 has a plurality of types of track circuit transmission data 120 according to control states ((a) to (c) in FIG. 2) determined according to a control signal from the track circuit transmission data output control unit 34. Is repeatedly created, for example, at regular intervals. The control states of (a) to (c) controlled by the track circuit transmission data output control unit 34 will be described below.

First, the control state (a) is called a "train control data output state", and the track circuit transmission data output control unit 34 transmits the track circuit transmission data 120 including the train control data to the track circuit transmission data transmission unit 33. It is controlled based on the output of the permitted control signal (train control data output permission signal). The data format of the track circuit transmission data 120 will be illustrated later in FIG. 3B, but in this example, the track circuit transmission data 120 including the regular train control data includes the train control information detection data DD and the train control data. It is composed of a CD, and the train control data CD is data equivalent to the train control information CI transmitted from the transmission packet receiving unit 31. The track circuit transmission data creation unit 32 includes a track circuit including an appropriate train control data CD based on the train control information CI transmitted from the transmission packet reception unit 31 as the track circuit transmission data 120 for the train control data output state. The transmission data 120 is repeatedly created. Then, in the train control data output state, the track circuit transmission data transmission unit 33 transmits the track circuit transmission data 120 created by the track circuit transmission data creation unit 32 for the train control data output state to the track circuit 4.

The control state of (b) is called an "idle state", and the track circuit transmission data output control unit 34 to the track circuit transmission data transmission unit 33 of the track circuit transmission data 120 including special data that is not distinguished from the train control data. Control is performed based on the output of a control signal (special data output permission signal) that permits transmission. The track circuit transmission data creation unit 32 repeats the track circuit transmission data 120 including special data that is not distinguished from the train control data when received by the on-board control device 5 as the track circuit transmission data 120 for the idle state. Creating. Here, the special data is data in a form in which the on-board control device 5 that has received the data does not distinguish it from the train control data CD, and specifically, for example, all "0" or all "1". Is composed of data contents that are not used in the regular train control data CD (or train control information CI), such as the data in which "" is written. In the following description, this special data will also be referred to as "idle data". Then, in the idle state, the track circuit transmission data transmission unit 33 transmits the track circuit transmission data 120 including the special data created by the track circuit transmission data creation unit 32 for the idle state to the track circuit 4.

(C) is called a "standby state", and a control signal (output prohibition signal) that does not allow transmission of the track circuit transmission data 120 is output from the track circuit transmission data output control unit 34 to the track circuit transmission data transmission unit 33. It is controlled based on. Since the track circuit transmission data transmission unit 33 does not transmit the track circuit transmission data 120 to the track circuit 4 in the standby state, the track circuit transmission data creation unit 32 does not have to create the track circuit transmission data 120 for the standby state. ..

How the track circuit transmission data 120 is received by the on-board control device 5 while the control states of (a) to (c) are switched and controlled will be described later.

Further, the track circuit transmission data transmission unit 33 switches the control states (a) to (c) according to the control signal from the track circuit transmission data output control unit 34, and the track circuit transmission data 120 of the track circuit transmission data 120 is switched according to the control state. Select transmission to track circuit 4. The track circuit transmission data 120 is mounted on a carrier wave having a carrier frequency of 1 kHz and is transmitted to the track circuit 4 at a speed of 100 bps, for example.

Further, the storage device 35 stores the track circuit transmission data 120 transmitted by the track circuit transmission data transmission unit 33.

The on-board control device 5 receives the track circuit transmission data 120 transmitted from the transmitter 3 via the track circuit 4, the track circuit transmission data receiving unit 51, and the train control information (train) from the received track circuit transmission data 120. It is configured to include a train control data detection unit 52 that extracts a control data CD) and a train control device 53 that controls a brake using the extracted train control information.

FIG. 3 is a diagram showing a configuration example of transmission packets and track circuit transmission data. FIG. 3A shows a configuration example of the transmission packet 110, and FIG. 3B shows a configuration example of the track circuit transmission data 120.

According to FIG. 3A, the transmission packet 110 has, for example, a packet length of an arbitrary length, a header portion Ph in which the destination, source address, and other information of the packet are described, and train control information. It is composed of a data unit Pd in which information such as CI or transmitter output permission information PI is described.

According to FIG. 3B, the track circuit transmission data 120 is composed of, for example, train control information detection data DD and train control data CD. The train control information detection data DD is data for detecting the start of transmission of the train control data CD, and when the track circuit transmission data 120 to which the train control information detection data DD is not added is received, the on-board control device 5 Cannot identify the train control data CD from the track circuit transmission data 120. The train control data CD is data in which the actual data of the train control information is described, and the train control information CI described in the data unit Pd of the transmission packet 110 is subjected to processing such as encryption, coding, or modulation. It is data. Alternatively, the train control data CD and the train control information CI may be the same data. Therefore, in this description, the train control information CI and the train control data CD will be described separately, but the data contents may be equated with each other. The track circuit transmission data 120 is, for example, fixed-length data as a whole by using the train control information detection data DD and the train control data CD as fixed-length data.

(1-2) Train Detection Method As described above, in the train control information transmission system 100, the train detection unit 11 of the ground control device 1 detects the position of the train 50. As this detection method, a method used in a train detection system of a general non-insulated track circuit can be adopted, and an example thereof will be specifically described below.

FIG. 4 is a diagram for explaining an example of a method of detecting a train presence position. FIG. 4 shows a configuration example of a system capable of detecting the in-line position (in-line state) of the train 50 by using the train detection signal TD in the non-insulated track circuit system. The train detection signal receiver 81 that receives the train detection signal TD and the train detection signal transmitter 82 that transmits the train detection signal TD are alternately arranged on the connectable network 2.

In FIG. 4, the ground control device 1-1 controls the track circuits 4-1 to 4-k in the network 2-1 and the train detection unit 11 thereof controls the train 50 in the track circuits 4-1 to 4-k. In addition to monitoring the current status of the train 50, the current status of the train 50 in the track circuit 4- (k + 1) is also monitored. On the other hand, the ground control device 1-2 controls the track circuit 4- (k + 1) and later (the end is not shown) in the network 2-2, but the train detection unit 11 controls the train in the track circuit 4- (k + 2) and later. Monitor the status of 50 lines. Although the details will be described later, the train detection unit 11 acquires the reception result of the train detection signal TD from the train detection signal receiver 81 in the control range (within the same network) of the ground control device 1, and thereby the train 50's presence status. Can be identified.

In the system illustrated in FIG. 4, the train detection signal transmitter 82 constantly (or periodically) transmits the train detection signal TD to the track circuits 4 on both sides. Then, the transmitted train detection signal TD transmits the track circuit 4 while changing the signal level according to the presence status of the train 50, and is received by the train detection signal receiver 81. A more specific description will be given with reference to FIG.

For example, the train detection signal transmitter 82- (k-1) has a train detection signal TD (k) in each of the track circuit 4- (k-1) on the left side and the track circuit 4-k on the right side of the track circuit boundary 6. -1) is transmitted. Then, the train detection signal TD (k-1) transmitted to the track circuit 4- (k-1) was received by the train detection signal receiver 81- (k-2) and transmitted to the track circuit 4-k. The train detection signal TD (k-1) is received by the train detection signal receiver 81-k.

On the other hand, as shown in FIG. 4, the train detection signal receiver 81-k is transmitted from the train detection signal transmitter 82- (k + 1) and passes through the track circuit 4- (k + 1) to the train detection signal TD ( k + 1) is also received. That is, the train detection signal receiver 81-k receives the train detection signals TD (k-1) and TD (, respectively, from the two adjacent train detection signal transmitters 82- (k-1) and 82- (k + 1). k + 1) will be received.

Here, the train detection signal receiver 81 makes it possible to identify the source of the train detection signal TD. Specifically, for example, for the train detection signal TDs having different transmission sources, signals having different frequencies may be used, or signals to which an identification code (ID) is added may be used.

Further, the level of the train detection signal TD transmitted from the train detection signal transmitter 82 does not change, but the level of the train detection signal TD received by the train detection signal receiver 81 changes depending on the train presence status. Specifically, when the train 50 is present in the track circuit 4 of the transmission path, the train detection signal TD is short-circuited by the axle of the train 50, and most of the train detection signal TD propagates to the train 50. The signal level of the train detection signal TD received by the detection signal receiver 81 is lowered. For example, as shown in FIG. 4, when the train 50 is on the track circuit 4- (k + 1), the train detection signal receiver 81-k uses the train detection signal TD (k-1) via the track circuit 4-k. ) Is received at the normal signal level, while the train detection signal TD (k + 1) via the track circuit 4- (k + 1) is received in a state where the signal level is lowered.

As described above, in the system of FIG. 4, the train detection signal receiver 81 receives the train detection signal TD at different signal levels depending on the track presence status in the track circuit 4. Therefore, the train detection unit 11 of the ground control device 1 grasps the reception status of the train detection signal TD to the train detection signal receiver 81 connected to the same network 2, so that the specific track circuit 4 is used. It is possible to detect and judge the current state. For example, in the case of the above example, the train detection unit 11 of the ground control device 1-1 receives the train via the track circuit 4- (k + 1) by grasping the reception status of the train detection signal receiver 81-k. Since it is possible to identify that the signal level of the train detection signal TD (k + 1) has decreased, it is possible to detect that the train 50 is on the track circuit 4- (k + 1).

The above is an example of the train detection method in the train control information transmission system 100 of the non-insulated track circuit. Although the train detection signal receiver 81 having a receiving function and the train detection signal transmitter 82 having a transmitting function are shown in FIG. 4 in different configurations, they may have the same configuration having a transmitting / receiving function. Further, the train detection signal receiver 81 and the train detection signal transmitter 82 may be different from the transmitter 3 shown in FIGS. 1 and 2, and have both the transmitter 3 and the transmission / reception function of the train detection signal TD. It may be one device. Specifically, for example, for the transmitter 3, the track circuit transmission data 120 is transmitted in a data configuration in which the train control information (train control data CD) and the train detection signal TD are superimposed, and further, the train detection signal TD is transmitted. The reception function may also be provided.

(1-3) Train Control Information Transmission The transmission of train control information by the train control information transmission system 100 according to the present embodiment will be described below. In the train control information transmission system 100 according to the present embodiment, since the non-insulated track circuit is adopted, when passing through the boundary of the track circuit 4 (normal track circuit boundary 6, track circuit boundary 7 of the logic part boundary). The problem is how to transmit train control information.

Therefore, the transmission of train control information by the train control information transmission system 100 is concretely taken as an example of a situation in which the train 50 advances from the track circuit 4- (k-1) to the track circuit 4- (k + 1) via the track circuit 4-k. To explain. As shown in FIG. 2, the train 50 passes through the normal track circuit boundary 6 when proceeding from the track circuit 4- (k-1) to the track circuit 4-k, and the train 50 passes from the track circuit 4-k to the track. When proceeding to circuit 4- (k + 1), it passes through the track circuit boundary 7 of the logic part boundary.

(1-3-1) Passing through the normal track circuit boundary 6 First, before the train 50 enters the track circuit 4-k, that is, when the train is on the track circuit 4- (k-1), it is on the ground. The train detection unit 11 of the control device 1-1 detects the non-existence state in the track circuit 4-k. At this time, in the ground control device 1-1, the train control information creation unit 12 does not create the train control information CI, and the transmission packet creation unit 13 does not create the transmission packet 110. Therefore, the transmission packet transmission unit 14 uses the track circuit 4 The transmission packet 110 is not transmitted to the transmitter 3-k corresponding to −k. Then, since the transmitter 3-k does not receive the transmission packet 110, the control state is set to the standby state.

Next, when the train 50 passes through the normal track circuit boundary 6 and enters the track circuit 4-k, the train detection unit 11 of the ground control device 1-1 detects the presence state in the track circuit 4-k. At this time, in the ground control device 1-1, the train control information creation unit 12 creates the train control information CI, the transmission packet creation unit 13 creates the transmission packet 110 including the train control information CI, and the transmission packet transmission unit 14 creates the transmission packet 110. The transmission packet 110 is transmitted to the transmitter 3-k corresponding to the orbital circuit 4-k. In the transmission destination transmitter 3-k, the transmission packet receiving unit 31 extracts the train control information CI from the received transmission packet 110 and transmits it to the track circuit transmission data creating unit 32. The track circuit transmission data creation unit 32 that has received the train control information CI creates track circuit transmission data 120 based on the train control information CI and transmits it to the track circuit transmission data transmission unit 33. Then, the track circuit transmission data transmission unit 33 selects whether or not to output the track circuit transmission data 120 to the track circuit 4-k.

The selection of transmission of the track circuit transmission data 120 by the track circuit transmission data transmission unit 33 is determined according to a control signal (or a control state controlled based on the control signal) from the track circuit transmission data output control unit 34. Specifically, for example, when an output permission signal (train control data output permission signal or special data output permission signal) is output (train control data output state or idle state), the track circuit transmission data 120 is transmitted and output. When the prohibition signal is output (standby state), the track circuit transmission data 120 is not transmitted. Then, the storage device 35 records the contents of the track circuit transmission data 120 transmitted by the track circuit transmission data transmission unit 33. At this time, the state of the track circuit transmission data transmission unit 33 (control state of the transmitter 3-k) may also be recorded.

In a situation where the train 50 passes through the normal track circuit boundary 6 as in the case of proceeding from the track circuit 4- (k-1) to the track circuit 4-k described above, when the presence state of the train 50 is detected. Since the transmission packet 110 is transmitted only, the track circuit transmission data output control unit 34 may always output the output permission control information. Alternatively, the output of the control signal by the track circuit transmission data output control unit 34 may be invalidated. In any case, when the transmitter 3-k receives the transmission packet 110, it suffices if an appropriate track circuit transmission data 120 can be created and transmitted.

After that, the ground control device 1-1 repeatedly transmits the transmission packet 110 to the transmitter 3-k at regular intervals while continuing to detect the on-line state in the track circuit 4-k. Similarly, the transmitter 3-k also repeatedly transmits the track circuit transmission data 120 to the track circuit 4-k at regular intervals.

(1-3-2) Passing the track circuit boundary 7 at the boundary of the logic section After that, the train 50 passes from the track circuit 4-k through the track circuit boundary 7 at the boundary of the logic section and enters the track circuit 4- (k + 1). Then, the train detection unit 11 of the ground control device 1-1 detects the non-existence state again in the track circuit 4-k, and therefore stops the transmission of the transmission packet 110 to the transmitter 3-k. In response to this stop, the control state returns to the standby state in the transmitter 3-k.

By the way, when the train 50 passes through the track circuit boundary 7 of the logic part boundary, as described above with reference to FIG. 4, due to the characteristics of the train detection method used in the non-insulated track circuit method, the traveling side of the logic part boundary The track status of the track circuit 4- (k + 1) is detected not by the train detection unit 11 of the ground control device 1-2 but by the train detection unit 11 of the ground control device 1-1. This is because, in FIG. 4, the train detection signal receiver 81-k receives the train detection signal TD (k + 1) via the track circuit 4- (k + 1), and the reception result is the train detection of the ground control device 1-1. It is shown from the acquisition by the unit 11 to identify the presence status of the train 50 in the track circuit 4- (k + 1).

That is, the ground control device 1-2 cannot identify the presence status of the track circuit 4- (k + 1). Therefore, the ground control device 1-2 cannot transmit the transmission packet 110 to the transmitter 3- (k + 1) at the train detection timing, and transmits the transmission packet 110 at a constant cycle, for example, regardless of the presence status of the train 50. There is no choice but to use a mechanism such as transmitting the packet 110. Further, in order to prevent interference with adjacent track circuits 4-k, in the standby state transmitter 3- (k + 1), the track circuit transmission data 120 is not transmitted to the track circuit 4- (k + 1). The circuit transmission data output control unit 34 outputs a control signal (output prohibition signal) for prohibiting output to the track circuit transmission data transmission unit 33.

Further, as described above, when the train 50 enters the track circuit 4- (k + 1), its presence state is detected by the ground control device 1-1. In this case, the ground control device 1-1 transmits the transmission packet 110 (see FIG. 3A) including the transmitter output permission signal PI between the networks in accordance with the train detection timing in the track circuit 4- (k + 1). It is repeatedly transmitted to the transmitter 3- (k + 1) via the communication device 8 at regular intervals.

Then, in the transmitter 3- (k + 1), the transmission packet receiving unit 31 transmits the transmitter output permission signal PI included in the received transmission packet 110 to the track circuit transmission data output control unit 34.

(1-3-3) Correspondence to the message merge problem As described above, when the train 50 passes the track circuit boundary 7 of the logic part boundary, the ground control device 1-1 is ahead of the logic part boundary. Since the transmission packet 110 including the transmitter output permission signal PI is transmitted to the transmitter 3- (k + 1) in accordance with the train detection timing in the (track circuit 4- (k + 1)), the transmitter output permission signal PI is then transmitted. The received transmitter 3- (k + 1) transmits the track circuit transmission data 120 to the track circuit 4- (k + 1).

However, at this time, in the conventional technique, the track circuit transmission data 120 transmitted from the transmitter 3-k based on the presence state before the boundary of the logic section (track circuit 4-k) and the tip of the boundary of the logic section (track circuit 4-k). As a result of the track circuit transmission data 120 transmitted from the transmitter 3- (k + 1) being continuously received by the on-board control device 5 based on the track state of the track circuit 4- (k + 1)), the message merging problem occurs. It could occur. On the other hand, the train control information transmission method according to the present embodiment can avoid the occurrence of such a message merging problem.

In the following, for comparison, after concretely exemplifying such a message merging problem by the conventional technique in FIG. 5, the train control information transmission method according to the present embodiment will be described with reference to FIG. ..

(1-3-3-1) Problem of message merging by conventional technique FIG. 5 is for explaining a message transmission state when passing through a track circuit boundary when it is assumed that one conventional technique is applied. It is a figure. In FIG. 5, in order to facilitate comparison with the present embodiment shown in FIG. 6 later, it is assumed that a conventional technique is applied to the configuration of the train control information transmission system 100 according to the present embodiment. do. Further, FIGS. 5 and 6 illustrate the transmission status of train control information not only when passing through the track circuit boundary 7 at the boundary of the logic unit but also when passing through the normal track circuit boundary 6.

In FIG. 5, CD1 corresponds to the train control data CD for the track circuit 4- (k-1), similarly, CD2 corresponds to the train control data CD for the track circuit 4-k, and CD3 corresponds to the track circuit 4- (k + 1). Corresponds to the train control data CD for. Further, DD1 corresponds to the train control information detection data DD for the track circuit 4- (k-1), similarly, DD2 corresponds to the train control information detection data DD for the track circuit 4-k, and DD3 corresponds to the train control information detection data DD for the track circuit 4- (k-1). Corresponds to the train control information detection data DD for k + 1).

Here, the on-board control device 5 starts receiving the train control data CD by receiving the train control information detection data DD. Further, whether or not the on-board control device 5 is normal depending on whether or not the data length (for example, the number of bits) matches the specified length with respect to the train control data CD received by each track circuit 4. Is determined (data length determination), and the train control data CD is used for train control by the train control device 53 only when it is determined to be normal.

First, in FIG. 5, the transmission state when passing through the normal track circuit boundary 6 will be considered. As described above, before and after the normal track circuit boundary 6, the ground control device 1-1 detects the presence state of both track circuits 4- (k-1) and 4-k, and also , The track circuit transmission data 120 is transmitted by the transmitters 3- (k-1) and 3-k under the control of the ground control device 1-1. That is, the ground control device 1-1 causes the track circuit transmission data 120 composed of DD1 and CD1 to be transmitted by the transmitter 3- (k-1) until just before the train 50 steps into the track circuit 4-k (FIG. 5 (A)), when the train 50 steps into the track circuit 4-k, the transmission packet 110 including the transmitter output permission signal PI is transmitted to the transmitter 3-k in accordance with the train detection timing. The transmitter 3-k can transmit the track circuit transmission data 120 composed of DD2 and CD2 from the beginning (see FIG. 5B).

As a result, the information control data CD1 received by the on-board control device 5 immediately before the train 50 steps into the track circuit 4-k becomes unfinished data that does not match the specified length (FIG. 5 (D). ), It is surely discarded by the data length determination (see FIG. 5 (E)), and is not treated as normal detection data (see FIG. 5 (F)).

On the other hand, in FIG. 5, the transmission state when passing through the track circuit boundary 7 of the logic section boundary will be considered. Before and after the track circuit boundary 7 of the logic section boundary, the point that the ground control device 1-1 detects the on-line state of the front and rear track circuits 4-k and 4- (k + 1) is that the above-mentioned normal track circuit boundary 6 It is the same as the case of. However, before and after the boundary of the logic unit, the track circuit transmission data 120 is transmitted to the track circuit 4-k by the transmitter 3-k under the control of the ground control device 1-1, while the track circuit 4- (k + 1) is transmitted. ) Is transmitted by the transmitter 3- (k + 1) under the control of the ground control device 1-2. That is, until just before the train 50 steps into the track circuit 4- (k + 1), the ground control device 1-1 causes the track circuit transmission data 120 composed of DD2 and CD2 to be transmitted by the transmitter 3- (k-1). (See FIG. 5B), when the train 50 steps into the track circuit 4- (k + 1), the ground control device 1-2 is not synchronized with the ground control device 1-1, so the train is detected. The timing cannot be accurately transmitted, and the track circuit transmission data 120 composed of DD3 and CD3 cannot be transmitted from the beginning by the transmitter 3- (k + 1).

More specifically, when the track circuit transmission data 120 is transmitted from the transmitter 3-k to the track circuit 4-k, the transmitter 3- (k + 1) under the control of the ground control device 1-2 , Track circuit transmission data 120 for transmission to track circuit 4- (k + 1) based on the train control information CI of the transmission packet 110 transmitted from the ground control device 1-2 while the control state is in the standby state. "DD3 + CD3" has been created and is ready to be released at any time. Then, when the on-line state in the track circuit 4- (k + 1) is detected, the transmission packet 110 including the transmitter output permission signal PI is transmitted from the ground control device 1-1 to the inter-network communication device 8 in accordance with the train detection timing. It is transmitted to the transmitter 3- (k + 1) via the transmitter, and at the timing when the output permission signal PI is received, the transmitter 3- (k + 1) transmits the track circuit transmission data 120 “DD3 + CD3” to the track circuit 4- (k + 1). Output (see FIG. 5C). However, since the output permission control signal (transmitter output permission information PI) and train control information (train control information CI) are received from the ground control devices 1-1 and 1-2 that are not synchronized with each other, the above The track circuit transmission data 120 “DD3 + CD3” may not be transmitted from the beginning but may be transmitted to the track circuit 4- (k + 1) from the middle.

Specifically, as shown in FIG. 5D, when the control cycles of the information control data CD2 and the information control data CD3 are the same, before and after passing the track circuit boundary 7 of the logic unit boundary, the vehicle is on the vehicle. In the control device 5, a part of the information control data CD2 received from the track circuit 4-k behind the boundary of the logic unit and a part of the information control data CD3 received from the track circuit 4- (k + 1) in front of the boundary of the logic unit. Will be merged. Then, when the erroneous information "a part of CD2 + a part of CD3" due to this merging matches the specified length (see FIG. 5 (E)), the on-board control device 5 makes this erroneous information. The information is erroneously recognized as valid detection data (see FIG. 5 (F)). That is, the on-board control device 5 has a risk of performing train control using erroneous information.

To summarize the above briefly, when the conventional technique is used, the transmitter 3- (k + 1) has the ground control device 1 in advance immediately after receiving the transmitter output permission information PI from the ground control device 1-1. Since the train control information CI received from -2 is output to the track circuit 4- (k + 1), there is a risk that a message merging problem will occur and train control using incorrect information will be performed.

(1-3-3-2) Transmission control according to the first embodiment FIG. 6 shows a transmission status of a message when passing through a track circuit boundary in the train control information transmission method according to the first embodiment. It is a figure for demonstrating. The train control information transmission method according to the first embodiment will be described with reference to FIG.

In FIG. 6, the transmission state when passing through the normal track circuit boundary 6 is the same as in FIG. 5, and the description thereof will be omitted.

Next, in FIG. 6, the transmission state when passing through the track circuit boundary 7 of the logic section boundary will be considered. The ground control device 1-1 detects the on-line state of the track circuits 4-k and 4- (k + 1) before and after the track circuit boundary 7 of the logic section boundary. Regarding the transmission of the track circuit transmission data 120 to the track circuits 4-k and 4- (k + 1), the transmission to the track circuit 4-k behind the track circuit boundary is a transmission under the control of the ground control device 1-1. The device 3-k performs the transmission to the track circuit 4- (k + 1) in front of the track circuit boundary, but the transmitter 3- (k + 1) under the control of the ground control device 1-2 performs the transmission. This point is also the same as in FIG.

However, in the present embodiment, when the train 50 steps into the track circuit 4- (k + 1), the transmission packet 110 including the transmitter output permission information PI is transmitted between networks from the ground control device 1-1 that detects the on-line state. In the transmission control in the transmitter 3- (k + 1) which is transmitted to the transmitter 3- (k + 1) via the communication device 8 and receives the transmitter output permission information PI, what is the conventional technique described in FIG. It's different.

Specifically, in the transmitter 3- (k + 1), when the track circuit transmission data output control unit 34 receives the transmitter output permission information PI, the track circuit transmission data output control unit 34 is in a standby state (c) with respect to the track circuit transmission data transmission unit 33. Outputs a control signal (special data output permission signal) that transitions from to to the idle state (b). Based on the output of the control signal, the control state of the transmitter 3- (k + 1) becomes an idle state, and the track circuit transmission data transmission unit 33 is a track circuit transmission created for the idle state by the track circuit transmission data creation unit 32. Data 120, that is, track circuit transmission data 120 including special data (idle data) that is not distinguished from the train control data CD is transmitted to track circuit 4- (k + 1) (see FIG. 6 (C)). Specifically, as shown in FIG. 6C, the track circuit transmission data 120 created in the idle state is idle data in which "0" is written in all of the track circuit transmission data 120 without including the train control information detection data DD. Because of the configuration, the on-board control device 5 does not identify the train control data CD from the track circuit transmission data 120.

The idle state is maintained for a predetermined period of time, after which the track circuit transmission data output control unit 34 causes the track circuit transmission data transmission unit 33 to transition to the normal train control data output state (a) (train). Control data output permission signal) is output. Based on the output of the control signal, the control state of the transmitter 3 becomes the train control data output state, and the track circuit transmission data transmission unit 33 is the track created for the train control data output state by the track circuit transmission data creation unit 32. The circuit transmission data 120, that is, the track circuit transmission data 120 (CD3 + DD3 shown in FIG. 6C) including the proper regular train control data CD is transmitted to the track circuit 4- (k + 1).

In such transmission control according to the present embodiment, it is conceivable that the time for maintaining the idle state is set in advance to be longer than one control cycle of the regular track circuit transmission data, for example. In this case, a part of the information control data CD2 received from the orbital circuit 4-k behind the boundary of the logic unit and the orbital circuit transmission data 120 “0” received from the orbital circuit 4- (k + 1) in front of the boundary of the logic unit. Even if "... 0" is merged (see FIG. 6 (D)), the data length of the merged message is always longer than the specified length (data length of the train control data CD with one control cycle). In the data length determination, the data is discarded without being determined to be normal (see FIG. 6 (E)). That is, the on-board control device 5 does not perform train control using erroneous information "a part of CD2 + 0 ... 0". Further, after the transition to the train control data output state after the idle state, the track circuit transmission data 120 "DD3 + CD3" including the appropriate train control data CD3 is transmitted from the beginning, so that the on-board control device 5 is normal. Train control can be safely performed using the train control data CD3 (see FIG. 6 (F)).

In addition, by transitioning to an idle state in which special data is transmitted immediately after passing through the boundary of the logic unit, the time during which there is no signal when viewed from the on-board control device 5 can be minimized, so that an abnormality due to no signal can be minimized. It is possible to realize proper transmission of train control information even when passing through the boundary of the logic unit while preventing the detection from operating.

Summarizing the above briefly, according to the train control information transmission method according to the first embodiment, the transmitter 3- (k + 1) immediately after receiving the transmitter output permission information PI from the ground control device 1-1. By transitioning from the standby state to the idle state and transmitting the track circuit transmission data 120 (for example, "0 ... 0") including special data (idle data) to the track circuit 4- (k + 1), the message is transmitted. Even if they are merged, they are discarded without being judged as normal by the data length judgment. Thus, the transmitter 3 of the train control information transmission system 100 solves the message merging problem even at the logical section boundary of the non-insulated track circuit, and makes it possible to identify appropriate train control information.

(2) Second Embodiment In the first embodiment of the present invention described above, the track circuit transmission data creation unit 32 of the transmitter 3 is in the train control data output state (train control data output state) in the creation of the track circuit transmission data 120. It is necessary to prepare both the regular train control data CD for the control state (a)) and the special data (idle data) for the idle state (control state (b)). Therefore, the circuit scale of the transmitter 3 becomes larger than that of the conventional train control transmission system, and the manufacturing cost may increase.

As a means of overcoming such a problem, a second embodiment of the present invention will be described below. In the second embodiment, the expansion of the circuit scale is suppressed by setting the control state of the transmitter 3 into two states, a train control data output state (control state (a)) and a standby state (control state (c)). However, even if telegram merging occurs when passing through the boundary of the logical section, train control using erroneous information can be prevented.

FIG. 7 is a diagram for explaining a transmission state of a telegram when passing through a track circuit boundary in the train control information transmission method according to the second embodiment. The second embodiment is the same as the first embodiment except for the transmission control when passing through the track circuit boundary 7 of the logic unit boundary. Therefore, the train control is the same as the description of the first embodiment. This will be described using the information transmission system 100. Further, in FIG. 7, the transmission state when passing through the normal track circuit boundary 6 is the same as that in FIG. 6, and the description thereof will be omitted.

In FIG. 7, transmission control when passing through the track circuit boundary 7 of the logic section boundary will be described. As described above, in the second embodiment, there are only two types of control state switching circuits in the transmitter 3, a train control data output state (a) and a standby state (c).

When the train 50 passes through the track circuit boundary 7 of the logic section boundary and steps into the track circuit 4- (k + 1), the transmission packet including the transmitter output permission information PI from the ground control device 1-1 that detects the on-line state. 110 is transmitted to transmitter 3- (k + 1) via the inter-network communication device 8. In the transmitter 3- (k + 1) that has received the transmitter output permission information PI, transmission control different from that of the first embodiment is performed.

Specifically, in the transmitter 3- (k + 1), when the track circuit transmission data output control unit 34 receives the transmitter output permission information PI, the track circuit transmission data output control unit 34 is in a standby state (c) with respect to the track circuit transmission data transmission unit 33. Outputs a control signal (train control data output permission signal) for transitioning to the train control data output state (a). At the same time, the track circuit transmission data output control unit 34 has already received the transmission packet 110 (in the standby state (c) up to that point), which is waiting for processing at that time, by the transmission packet receiving unit to the track circuit transmission data creating unit 32. It outputs a control signal for rewriting the entire transmission packet 110) that has been put on standby for processing into data that cannot be generated by the train control information CI (data that is not identified as including the train control information CI). The data that is not identified as including the train control information CI is, for example, data in which all "0" or all "1" is written, and is the "idle data" described in the first embodiment. It is the same. That is, the track circuit transmission data output control unit 34 causes the track circuit transmission data creation unit 32 to rewrite the entire transmission packet 110 that has been received in the standby state (c) and is waiting for processing into idle data.

As a result, the control state of the transmitter 3- (k + 1) becomes the train control data output state (a) according to the train control data output permission signal, and the track circuit transmission data transmission unit 33 is the track circuit transmission data creation unit 32. The track circuit transmission data 120 created for the train control data output state is transmitted to the track circuit 4- (k + 1) from the middle. At this time, the track circuit transmission data 120 already created includes the train control data CD3, and when the on-board control device 5 receives the train, the train included in the track circuit transmission data 120 received immediately before that. There is a possibility that the control data will be merged with a part of the CD2 and the message merger "a part of the CD2 + a part of the CD3" will occur (see FIG. 7 (D)).

However, as described above, in the second embodiment, the track circuit transmission data output control unit 34 is waiting for processing with the track circuit transmission data creation unit 32 at the same time as the output of the train control data output permission signal. A control signal for rewriting the entire transmission packet 110 into idle data (for example, all "0") is output. Therefore, the track circuit transmission data 120 created by the track circuit transmission data creation unit 32 after being switched to the train control data output state (a) is created based on the idle data of all "0", so that the train control data The track circuit transmission data 120 includes special data (idle data) that is not distinguished from the CD. As illustrated in FIG. 7C, the track circuit transmission data 120 at this time does not include the regular train control data CD (the data of the portion corresponding to CD3 is “0 ... 0”), and The part corresponding to the train control information detection data DD3 is also idle data “0 ... 0”. Then, the track circuit transmission data 120 based on the idle data is transmitted to the track circuit 4- (k + 1) and received by the on-board control device 5, so that the on-board control device 5 causes the message merger "CD2 Idle data "0 ... 0 + 0 ... 0" is added to "part + part of CD3". Therefore, since this telegram "part of CD2 + part of CD3 + 0 ... 0 + 0 ... 0" is always longer than the specified length (data length of the train control data CD according to one control cycle), the data length determination is performed. Then, it is determined that the length does not match the specified length and is not normal, and the data is surely discarded (see FIG. 7 (E)).

That is, in the second embodiment, the on-board control device 5 does not perform train control using erroneous information "a part of CD2 + a part of CD3". Further, since the transmitter 3- (k + 1) does not rewrite the transmission packet 110 received after transitioning to the train control data output state to idle data, the trajectory created based on the transmission packet 110. The circuit transmission data 120 is transmitted to the track circuit 4- (k + 1) in the form “DD3 + CD3” including the regular train control data CD3. Then, the on-board control device 5 that has received the track circuit transmission data 120 can safely perform train control using the train control data CD3, which is normal information (see FIG. 7 (F)).

Summarizing the above briefly, according to the train control information transmission method according to the second embodiment, when viewed from the on-board control device 5, "a part of CD2 + one of CD3" is sandwiched between the passage of the logical section boundary. Even if the message merge of "part" occurs, the idle data will be added to the merged message by receiving the track circuit transmission data 120 with the idle data "0 ... 0 + 0 ... 0" without the train control detection data DD3. It can be handled in the added form "a part of CD2 + a part of CD3 + 0 ... 0 + 0 ... 0". Thus, even if the above-mentioned message merging occurs, it can be discarded without being determined to be normal in the data length determination as in the first embodiment, and the transmitter 3 of the train control information transmission system 100 can be discarded. It solves the problem of telegram merging even at the boundary of the logic part of the non-insulated track circuit, and makes it possible to identify appropriate train control information.

As described above, in the second embodiment of the present invention, not only the same effect as that of the first embodiment can be obtained, but also the circuit scale of the transmitter 3, which is a concern in the first embodiment, is expanded. Can be suppressed.

(3) Other Embodiments As described above, a transmitter, a train control information transmission system, and a train control information transmission system that can solve the message merging problem even at the boundary of the logic part of the non-insulated track circuit and identify appropriate train control information. The first embodiment and the second embodiment of the train control information transmission method have been shown, but the present invention is not limited to these, and various modifications and replacements can be performed.

Specifically, for example, the train control information transmission system 100 according to the present invention described above may be additionally provided with a display device for displaying the message merging. This display device displays a record of the occurrence of telegram merging, a progress record of the overall reception status of the telegram, and the like. Specifically, the display device may be mounted on, for example, an on-board control device 5 or a ground control device 1, and a driver, a worker, or the like confirms the display of the display device to obtain train control information. It is possible to monitor and verify whether the handling is performed properly and whether abnormal processing is performed.

1 Ground control device 2 Network 3 Transmitter 4 Track circuit 5 On-board control device 6 (Normal) track circuit boundary 7 (Logic section boundary) Track circuit boundary 8 Inter-network communication device 11 Train detection unit 12 Train control information creation unit 13 Transmission packet creation unit 14 Transmission packet transmission unit 31 Transmission packet reception unit 32 Orbital circuit transmission data creation unit 33 Orbital circuit transmission data transmission unit 34 Orbital circuit transmission data output control unit 35 Storage device 50 Train 51 Orbital circuit transmission data reception unit 52 Train control data detector 53 Train control device 81 Train detection signal receiver 82 Train detection signal transmitter 100 Train control information transmission system 110 Transmission packet 120 Track circuit transmission data CD Train control data CI Train control information DD Train control data detection data Pd Data part Ph Header part PI Transmitter output permission information

Claims (12)

In a train control information transmission system that transmits train control information for train control from a ground control device to an on-board control device mounted on a train traveling on a non-insulated track circuit type track circuit, a plurality of train control information transmission systems are used along the track circuit. The train control information installed and received from the ground control device is transmitted to the on-board control device via the track circuit, and is arranged adjacent to the track circuit boundary on the traveling direction side of the logic section. A transmitter capable of transmitting track circuit transmission data to a track circuit.
A transmission packet receiving unit that receives a transmission packet including the train control information transmitted from the ground control device, and a transmission packet receiving unit.
A first track circuit transmission data including the train control information of the transmission packet received by the transmission packet receiving unit, and a second track circuit that is not identified as the train control information when received by the on-board control device. A track circuit transmission data transmission unit that can be executed by selecting which of the transmission data to be transmitted to the track circuit or not to transmit any of the track circuit transmission data.
Equipped with a,
The track circuit transmission data transmission unit is
When the train passes through the track circuit boundary of the logic section and enters the track circuit, the second track circuit transmission data is transmitted to the track circuit.
A transmitter characterized by transmitting the first track circuit transmission data to the track circuit when a predetermined condition is satisfied after the train enters the track circuit. The transmitter according to claim 1, wherein the second track circuit transmission data is composed of data contents that are not used in the regular train control information. A track circuit transmission data creation unit that repeatedly creates the first track circuit transmission data and the second track circuit transmission data based on the transmission packet received by the transmission packet reception unit.
A track circuit transmission data output control unit that controls the selection of transmission of the track circuit transmission data by the track circuit transmission data transmission unit, and a track circuit transmission data output control unit.
With more
The track circuit transmission data output control unit
Until the train passes through the track circuit boundary of the logic section and enters the track circuit, the track circuit transmission data transmission unit of the first track circuit transmission data or the second track circuit transmission data. Control to a standby state that does not allow any transmission,
When the train passes through the track circuit boundary of the logic section and enters the track circuit, it is in an idle state that allows transmission of the second track circuit transmission data created by the track circuit transmission data creation unit. Control and
When a predetermined condition is satisfied after the train enters the track circuit, it is controlled to a train control data output state that permits transmission of the first track circuit transmission data created by the track circuit transmission data creation unit. The transmitter according to claim 1 , wherein the transmitter is provided. A track circuit transmission data creation unit that repeatedly creates the first track circuit transmission data based on the transmission packet received by the transmission packet reception unit, and a track circuit transmission data creation unit.
A track circuit transmission data output control unit that controls the selection of transmission of the track circuit transmission data by the track circuit transmission data transmission unit, and a track circuit transmission data output control unit.
With more
The track circuit transmission data output control unit
Until the train passes through the track circuit boundary of the logic section and enters the track circuit, the track circuit transmission data transmission unit of the first track circuit transmission data or the second track circuit transmission data. Control to a standby state that does not allow any transmission,
When the train passes through the track circuit boundary of the logic section and enters the track circuit, the train control data output state that permits the transmission of the track circuit transmission data created by the track circuit transmission data creation unit is set. By controlling and causing the track circuit transmission data creation unit to rewrite the transmission packet that has already been received by the transmission packet reception unit and is waiting for processing with special data that is not identified as the regular train control information. The transmitter according to claim 1 , wherein the second track circuit transmission data is created based on the rewritten transmission packet. This is a train control information transmission system used in non-insulated track circuit type track circuits.
A ground control device that includes train control information for train control in a transmission packet and transmits it to the network.
A transmitter that is installed along the track circuit and can transmit track circuit transmission data including the train control information to the track circuit based on the transmission packet received from the ground control device via the network.
An on-board control device mounted on a train traveling on the track circuit and performing train control using the train control information based on the track circuit transmission data received from the transmitter via the track circuit.
With
The transmitter
A transmission packet receiving unit that receives the transmission packet transmitted from the ground control device, and a transmission packet receiving unit.
A first track circuit transmission data including the train control information of the transmission packet received by the transmission packet receiving unit, and a second track circuit that is not identified as the train control information when received by the on-board control device. It has a track circuit transmission data transmission unit that can select which of the transmission data to be transmitted to the track circuit or not to transmit any of the track circuit transmission data .
Among the transmitters, in a transmitter capable of transmitting the track circuit transmission data to the track circuit arranged adjacent to the track circuit boundary on the traveling direction side of the logic section.
The track circuit transmission data transmission unit is
When the train passes through the track circuit boundary of the logic section and enters the track circuit, the second track circuit transmission data is transmitted to the track circuit.
A train control information transmission system comprising transmitting the first track circuit transmission data to the track circuit when a predetermined condition is satisfied after the train enters the track circuit. The train control information transmission system according to claim 5 , further comprising a display device capable of displaying a record of message merging that may occur in connection with the reception of the track circuit transmission data in the on-board control device. Among the transmitters, in a transmitter capable of transmitting the track circuit transmission data to the track circuit arranged adjacent to the track circuit boundary on the traveling direction side of the logic section.
A track circuit transmission data creation unit that repeatedly creates the first track circuit transmission data and the second track circuit transmission data based on the transmission packet received by the transmission packet reception unit.
A track circuit transmission data output control unit that controls the selection of transmission of the track circuit transmission data by the track circuit transmission data transmission unit, and a track circuit transmission data output control unit.
With more
The track circuit transmission data output control unit
Until the train passes through the track circuit boundary of the logic section and enters the track circuit, the track circuit transmission data transmission unit of the first track circuit transmission data or the second track circuit transmission data. Control to a standby state that does not allow any transmission,
When the train passes through the track circuit boundary of the logic section and enters the track circuit, it is in an idle state that allows transmission of the second track circuit transmission data created by the track circuit transmission data creation unit. Control and
When a predetermined condition is satisfied after the train enters the track circuit, the train is controlled to a train control data output state that permits transmission of the first track circuit transmission data created by the track circuit transmission data creation unit. The train control information transmission system according to claim 5 , wherein the train control information is transmitted. Among the transmitters, in a transmitter capable of transmitting the track circuit transmission data to the track circuit arranged adjacent to the track circuit boundary on the traveling direction side of the logic section.
A track circuit transmission data creation unit that repeatedly creates the first track circuit transmission data based on the transmission packet received by the transmission packet reception unit, and a track circuit transmission data creation unit.
A track circuit transmission data output control unit that controls the selection of transmission of the track circuit transmission data by the track circuit transmission data transmission unit, and a track circuit transmission data output control unit.
With more
The track circuit transmission data output control unit
Until the train passes through the track circuit boundary of the logic section and enters the track circuit, the track circuit transmission data transmission unit of the first track circuit transmission data or the second track circuit transmission data. Control to a standby state that does not allow any transmission,
When the train passes through the track circuit boundary of the logic section and enters the track circuit, the train control data output state that permits the transmission of the track circuit transmission data created by the track circuit transmission data creation unit is set. By controlling and causing the track circuit transmission data creation unit to rewrite the transmission packet that has already been received by the transmission packet reception unit and is waiting for processing with special data that is not identified as the regular train control information. The train control information transmission system according to claim 5 , wherein the second track circuit transmission data is created based on the rewritten transmission packet. A train by a train control information transmission system that transmits train control information for train control from a ground control device to an on-board control device mounted on a train traveling on a non-insulated track circuit type track circuit via a transmitter. It is a control information transmission method.
In the transmitter, a transmission packet receiving step of receiving a transmission packet including the train control information transmitted from the ground control device, and a transmission packet receiving step.
In the transmitter, the first track circuit transmission data including the train control information of the transmission packet received in the transmission packet reception step is not identified as the train control information when received by the on-board control device. An orbital circuit transmission data transmission step that can be executed by selecting which of the second orbital circuit transmission data to be transmitted to the orbital circuit or not to transmit any of the orbital circuit transmission data.
Equipped with a,
Among the transmitters, in a transmitter capable of transmitting the track circuit transmission data to the track circuit arranged adjacent to the track circuit boundary on the traveling direction side of the logic section.
In the track circuit transmission data transmission step by the transmitter,
When the train passes through the track circuit boundary of the logic section and enters the track circuit, the second track circuit transmission data is transmitted to the track circuit.
A train control information transmission method comprising transmitting the first track circuit transmission data to the track circuit when a predetermined condition is satisfied after the train enters the track circuit. The train control information transmission system has a predetermined display device, and the train control information transmission system has a predetermined display device.
6 . The train control information transmission method described. Among the transmitters, in a transmitter capable of transmitting the track circuit transmission data to the track circuit arranged adjacent to the track circuit boundary on the traveling direction side of the logic section.
A track circuit transmission data creation step for repeatedly creating the first track circuit transmission data based on the transmission packet received in the transmission packet reception step and the second track circuit transmission data, and a track circuit transmission data creation step.
A track circuit transmission data output control step that controls selection of transmission of the track circuit transmission data by the track circuit transmission data transmission step, and a track circuit transmission data output control step.
With more
In the track circuit transmission data output control step,
Until the train passes through the track circuit boundary of the logic section and enters the track circuit, the track circuit transmission data of the first track circuit transmission data or the second track circuit transmission data by the track circuit transmission data transmission step. Control to a standby state that does not allow any transmission,
When the train passes through the track circuit boundary of the logic section and enters the track circuit, it is in an idle state that allows transmission of the second track circuit transmission data created in the track circuit transmission data creation step. Control and
When a predetermined condition is satisfied after the train enters the track circuit, the train is controlled to a train control data output state that permits transmission of the first track circuit transmission data created in the track circuit transmission data creation step. The train control information transmission method according to claim 9 , wherein the train control information is transmitted. Among the transmitters, in a transmitter capable of transmitting the track circuit transmission data to the track circuit arranged adjacent to the track circuit boundary on the traveling direction side of the logic section.
A track circuit transmission data creation step for repeatedly creating the first track circuit transmission data based on the transmission packet received in the transmission packet reception step, and a track circuit transmission data creation step.
A track circuit transmission data output control step that controls selection of transmission of the track circuit transmission data by the track circuit transmission data transmission step, and a track circuit transmission data output control step.
With more
In the track circuit transmission data output control step,
Until the train passes through the track circuit boundary of the logic section and enters the track circuit, the track circuit transmission data of the first track circuit transmission data or the second track circuit transmission data by the track circuit transmission data transmission step. Control to a standby state that does not allow any transmission,
When the train passes through the track circuit boundary of the logic section and enters the track circuit, the train control data output state that permits the transmission of the track circuit transmission data created in the track circuit transmission data creation step is set. In addition to controlling, in the track circuit transmission data creation step, the transmission packet that has already been received in the transmission packet reception step and is waiting for processing is rewritten with special data that is not identified as the regular train control information. The train control information transmission method according to claim 9 , wherein the second track circuit transmission data is created based on the rewritten transmission packet.

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