JPH0748434Y2 - Train information transmission device - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a fixed train information consisting of digital signals of logical values "1" and "0" from a transmitter of an on-board device of a running train. The present invention relates to a train information transmission device that transmits various control information to the ground.

[Prior Art] A method of transmitting data by using electromagnetic coupling between a ground element and a vehicle upper element has a limited coupling range, and therefore accurate point information can be transmitted from the ground to the vehicle. However, on the other hand,
If the train passes over the ground at maximum speed, the time available for transmission will be shortened. In such a case, the data length to be transmitted is limited so that only relatively short information can be used so that the information transmission can be surely performed.

Therefore, for the data to be transmitted to the ground from the currently running car, only the train number information should be transmitted, and on the ground this should be received, and the train should be specified based on the obtained train number information and Corresponding data was read from the database, traffic signals were controlled, level crossings were controlled, or guidance was given to the station premises.

As the transmission method from the on-board equipment to the ground, the information unique to the train is FM-modulated with a 48-bit digital data signal of logical values "1" and "0" from the oscillator of the on-board equipment, and this is transmitted to the vehicle. On the ground side, the train travels while continuously transmitting through the upper arm, while on the ground side, the ground wave receives the modulated radio wave from the upper arm and demodulates it into a digital signal with the demodulator of the ground equipment. Then, it inputs it to the train centralized control device (called CTC device) through an encoder that is a code processor, reads the data of the train from the database, and sends a control signal to various ground facilities controlled by the CTC device. It was

[Problems to be solved by the invention] Therefore, in the past, since the train transmitted only one fixed information, it was necessary to install a database corresponding to the CTC device on the ground side, which was expensive as a ground side device. There was a problem that it was unavoidable.

Therefore, in view of the above problems, the present invention is not limited to the conventional train number data, but is also combined with this to express, express or ordinary trains.
It is an object of the present invention to provide a train information transmission device capable of transmitting a large amount of other train-specific information from the train and omitting a large-scale database from the ground-side device to reduce the price. is there.

[Means for Solving the Problems] In order to solve the above problems, the train information transmission device of the present invention is
The on-board device uses fixed information and a plurality of control information (a1, a2, ... a)
memory (1) that stores train information (a) consisting of z)
2), a memory searcher (13) for selecting and outputting the stored information of this memory (12), a transmission information buffer (14) for temporarily storing the output information of the memory searcher (13), and A receiver (17) for receiving a transmission signal, and a search instruction signal connected to the receiver (17) for analyzing received contents and reading corresponding information in the memory (12) according to predetermined command contents (A), a reception data analyzer (18) that outputs a switching instruction signal (B) by detecting when the transmission signal from the ground side is no longer received, and this reception data analyzer (18) ), And the output of the transmission information buffer (14), the individual control information (a1, a2, ... Az) of the plurality of temporarily stored control information (a1, a2, ... Az). One of a2, ... az) is sequentially output in a predetermined order for each input of the switching instruction signal (B). The signal switching device (15) and the transmitter (16) for transmitting the data from the transmission switching device (15) to the ground. , The information indicating ground elements (G0), which are sequentially arranged at a predetermined distance, and a plurality of information receiving ground elements (G1, G2, ... GZ) corresponding to the control information division number, and the information indicating ground elements (G0). And each information receiving ground child (G1, G2,… GZ)
And an encoder (10) connected to.

[Operation] The reception data analyzer (18) analyzes the reception data of the receiver (17) and outputs the search instruction signal (A) if it is the information instruction data. Correspondingly, the memory searcher (13) reads out and transfers the train information (a) in which a plurality of data groups in the memory (12) is a series, and temporarily stores it in the transmission information buffer (14). After that, when the signal from the receiver (17) is interrupted, the analyzer (18) sends the switching instruction signal (B) to the transmission switching device (15).
The transmission switch (15) outputs the first data group of the train information (a), for example, the control information (a1) from the transmission information buffer (14) as data to be transmitted, and the transmitter (16). ) To the ground continuously. This transmission data is transmitted to the ground device via the next ground element on the ground side. At this time, data from the ground is simultaneously received by the receiver (17).
The signal (transmission data from the ground) is input to the analyzer (18) via the, and the switching instruction signal (B) is also input to the transmission switcher (15), and the next data group, that is, The control information (a2) is read from the buffer (14) and transmitted to the ground via the transmitter (16). In this way, control information (az) corresponding to the passage of a predetermined number of ground elements
By repeating the operation of sequentially transmitting the data divided up to, a series of a large amount of train information (a) can be transmitted to the ground device. The train information (a) is converted through an encoder (10) and used for controlling various ground facilities via a CTC device or the like.

[Embodiment] An embodiment of the present invention will be specifically described below with reference to the drawings.

In FIG. 1, (T) is a train equipped with an on-board device, which will be described later. Correspondingly, on the track on which this train (T) travels, the ground devices, that is, the trains (T), are sequentially arranged at a predetermined distance along the track. Connects to the information instruction ground element (G0) and a plurality of information reception ground elements (G1, G2,… GZ) corresponding to the number of control information divisions, and these ground elements (G0, G1, G2,… GZ) Encoder (1
0) and a CTC device (11) to which the output of the encoder (10) is connected.

The above-mentioned information instruction ground element (G0) is a known transmission means for giving an instruction to the train (T) to transmit the train information (a) to the ground, and is connected in parallel at a predetermined interval. Information receiving ground units (G1, G2,… G)
Z) is mainly control information (a1, a2, ... a) from the vehicle.
z) is a means for receiving the divided control information (a1, a
2, ... az) are appropriately divided (for example, divided into 48-bit units), and a number corresponding to the number is arranged along the trajectory. Note that these information receiving ground elements (G1, G2, ... GZ) are known ground elements for transmission / reception that can also transmit normal telegrams such as ATS signals. The output of each ground element (G0, G1, G2, ... GZ) is connected to a CTC device (11) through an encoder (10) that exchanges a transmission / reception signal with a specified digital signal, and from the CTC device (11) The output of the CTC device (1
Supply to 1). The railroad crossing device and other ground equipment are controlled by the CTC device (11).

The train (T) includes fixed information including train number information and the like, and train information (a) uniquely associated with the train that controls ground facilities such as traffic lights, railroad crossings, and guidance to the station yard. Is stored and stored in the on-board device. The train information (a) is composed of control information (a1, a2, ... Az) corresponding to the number of ground facilities to be controlled, and is a large amount of data.

FIG. 2 shows an electric circuit block diagram of the on-vehicle device. This on-board device is a memory (12) that stores fixed information and train information (a) consisting of a plurality of control information (a1, a2, ... az).
And a memory searcher (13) for selecting and outputting stored information in the memory (12), a transmission information buffer (14) for temporarily storing output information of the memory searcher (13), and a transmission signal from the ground side And a search instruction signal (A) connected to the receiver (17) for analyzing the received content and reading the corresponding information in the memory (12) according to the predetermined command content. ) Is output and a reception data analyzer (18) that detects when the transmission signal from the ground side is no longer received and outputs a switching instruction signal (B), and this reception data analyzer (18) Switching instruction signal (B) and the output of the transmission information buffer (14) are input, and individual control information (a1, a2, az) of the plurality of temporarily stored control information (a1, a2, ... Az). One of the az) is sequentially output in a predetermined order for each input of the switching instruction signal (B). A changer (15) is constructed from the data from the transmission switching unit (15) transmitter for transmitting toward the ground (16).

The receiver (17) receives information indication data from the information indication ground element (G0) and information reception ground elements (G1, G2, ... GZ).
A receiver that receives a signal including normal electronic message data such as an ATS signal, and the received signal is input to a reception data analyzer (18).

The reception data analyzer (18) analyzes whether the information content of the input signal is information instruction data or normal telegram data, and the corresponding information (fixed information or train information (a)) in the memory (12) according to the instruction content. The search instruction signal (A) for reading out is output to the memory searcher (13). The same reception data analyzer (18) detects when the transmission signal from the ground side has disappeared and outputs, for example, a pulsed switching instruction signal (B) to the transmission switching device (15).

The memory searcher (13) reads information corresponding to the output of the reception data analyzer (12) from the memory (12) and outputs it to the transmission information buffer (14). That is, the information instruction ground element (G
When the information instruction data from (0) is received, the train information (a) is read and set in the transmission information buffer (14).

The transmission switching unit (15) divides the information from the transmission information buffer (14) into, for example, every 48 bits and outputs the transmission information as transmission data to the transmitter (16).
The following 48 bits of information data are taken out for each input of and are output to the transmitter (16) as transmission data. That is, the transmission data is sequentially switched in response to the switching instruction signal (B), and the entire train information (a) is divided and sequentially sent to the transmitter (16).

The transmitter (16) FM-modulates the set transmission data and repeatedly transmits it to the ground.

When the series of operations described above is completed, the train (T) travels on the track while transmitting fixed information (normal state).

Next, a series of operations of the on-board device as the train (T) progresses will be described. As shown in FIG.
Is running while transmitting fixed information toward the ground as shown in FIG. 3 up to the front of the information indicating ground element (G0). Then, when the train (T) reaches the point of the information instruction ground element (G0), the information instruction data transmitted from the information element ground element (G0) is received by the receiver (17). Received data analyzer (18)
Analyzes that it is information instruction data, outputs a search instruction signal (A) to that effect, and the memory searcher (13) reads out train information (a) from the memory (12).

The train information (a) read out is the transmission information buffer (14)
Is temporarily stored in. Next, when the train child of the train (T) passes through the information indicating ground element (G0), the receiver (17) no longer receives the information indicating data from the information indicating ground element (G0), and the reception data analyzer (18) outputs a switching instruction signal (B) to the transmission switching device (15) when it detects that the electromagnetic coupling between the grounding element (G0) and the vehicle upper element is broken. The transmission switching device (15) transmits the transmission information buffer (14) based on the switching instruction signal (B).
Control information (a1) of the train information (a) stored in
To the transmitter (16), and the train (T) outputs control information (a1)
As shown in FIG. 3, keeps repeatedly transmitting to the ground.

When the train (T) reaches the information receiving ground station (G1),
The receiver (17) receives normal telegram data from the ground terminal (G1). At the same time, the ground element (G1) sends the control information (a
This information (a1) is received by the encoder (10) because it receives 1)
It is input to the CTC device (11) via. When the train (T) exits the information receiving ground terminal (G1), the input of the normal telegram data is no longer input to the reception data analyzer (18). Therefore, the reception data analyzer (18) instructs switching as described above. The signal (B) is output to the transmission switch (15).

The transmission switcher (15) outputs the next 48-bit control information (a2) in the transmission information buffer (14) to the transmitter (16) based on the signal (B), and the train (T) outputs the control information (a2). ) Is repeatedly transmitted toward the ground (Fig. 3). By repeating this up to the control information (az), all necessary train information (a) is divided and transmitted to the ground.

In this way, the control information (a1, a2, ... az) of the train information (a) is divided and transmitted to the ground while switching, and the ground side also divides and receives correspondingly to receive the train (T) within a certain section. By sending a large amount of train information (a), the CTC device (11) linked with the train information (a) can control various ground facilities without checking the database as in the conventional case. , A simpler and cheaper configuration is sufficient.

It should be noted that the transmission switching device (15) has a memory reading mechanism so that it can read out data at any address, and a function for discriminating between the search instruction signal (A) and the switching instruction signal (B) is added. By modification, the functions of the memory searcher (13) and the transmission information buffer (14) can be integrated, and these functions can be eliminated. This change is based on the transmission switch (1
If 5) is a circuit that includes a CPU, it can be realized very easily.

[Advantages of the Invention] As described above, according to the present invention, various kinds of equipment on the ground side such as traffic lights, railroad crossings, station guides, etc. can be stored in a large amount by the progress of the train by the on-board device and the ground device having the above-described configurations. Since the control information of the train is divided and switched and transmitted from the train side to the ground, it is not necessary to bother to provide multiple databases for train information on the ground side, and the equipment will be cheaper as a whole. Has a practical effect.

[Brief description of drawings]

FIG. 1 is a schematic diagram illustrating the relationship between a train and a ground device, FIG. 2 is a block diagram of an electric circuit of an on-board device according to the present invention, and FIG. 3 is a relationship between transmission and reception of the on-board device. It is a time chart figure to show. (10): Encoder, (12): Memory, (13): Memory searcher, (14): Transmission information buffer, (15): Transmission selector, (16): Transmitter, (17): Receiver, (18): Received data analyzer, (G0): Information instruction ground element, (G1, G2, ... G
Z): information receiving ground child, (a): train information, (a1, a2, ... a
z): control information, (A): search instruction signal, (B): switching instruction signal.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Hiroshi Tachikawa 3-1-48 Kashiza, Ageo City, Saitama Prefecture 2-615, Ageo 2-56 (56) References JP49-7918 (JP, A) Actual exploitation 57- 80359 (JP, U)

Claims (1)

[Scope of utility model registration request] 1. A train information transmission device comprising an on-board device mounted on a train and a ground device corresponding to the on-board device, for transmitting predetermined information from the on-board device to the ground device. The device uses fixed information and multiple control information (a1, a2,
Memory (12) for storing train information (a) consisting of az), a memory searcher (13) for selecting and outputting the stored information of this memory (12), and a memory searcher (13) A transmission information buffer (14) for temporarily storing output information and a receiver (17) for receiving a transmission signal from the ground side
And a search instruction signal (A) which is connected to the receiver (17) and analyzes the received contents and reads the corresponding information in the memory (12) according to the predetermined command contents, and from the ground side. Reception data analyzer (18) that detects when the transmission signal is no longer received and outputs the switching instruction signal (B)
And a switching instruction signal (B) from this reception data analyzer (18)
And the output of the transmission information buffer (14) are input, and one of the individual control information (a1, a2, ... Az) of the plurality of temporarily stored control information (a1, a2, ... AZ) is input. A transmission switching device (1 that sequentially outputs the switching instruction signal (B) in a predetermined order for each input
5) and a transmitter (16) for transmitting the data from the transmission switching device (15) to the ground. The above-mentioned ground equipment is an information instruction sequentially arranged at a predetermined distance along the track. Information receivers (G0) and a plurality of information reception grounds (G1, G2, ... GZ) corresponding to the number of control information divisions, information instruction grounds (G0) and each information reception grounds (G1, G2) ,
A train information transmission device comprising: an encoder (10) connected to GZ).