JP2829588B2 - ATC equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ATC device in a non-insulated track circuit having no rail insulation and having no boundary configuration due to a resonance action which substitutes for rail insulation, and in particular, a train operation interval. This is related to the shortening of.

[0002]

2. Description of the Related Art A non-resonant type non-insulated track circuit does not have a function of blocking a signal wave at a boundary of the track circuit, so that a transmitted signal wave flows into an adjacent section and causes interference with the signal wave in that section. Therefore, it is difficult to share a train detection function and an information transmission function for train speed control. Therefore, for example, as shown in FIG. 3, the track circuits 2T, 3T and the track circuit 4T,
Train detector 6a, 6b and ATC transmitter 1 shared every 5T
a, 1b, and T is a train detection wave that needs to be constantly transmitted.
The D signal wave separates and distinguishes the signal frequency for each of the train detectors 6a and 6b, and transmits it to the track circuits 2T to 5T via the signal mixing and separating transformers 5b and 5d. The ATC signal wave, which is an information transmission wave for controlling the speed of the train, transmits a signal wave of a dedicated frequency separated from the TD signal wave.

The ratio of the ATC signal wave transmitted from the track circuit boundary and flowing in the front and rear directions is inversely proportional to the distance from the boundary to the axle short-circuited position by the preceding and following trains. Therefore, when the following vehicle 2b enters the track circuit 2T behind the track circuit 3T where the preceding vehicle 2a is located, the track circuit 3T
When the position of the preceding vehicle 2a traveling on the vehicle is near the boundary with the rear track circuit 2T, most of the ATC signal wave to be transmitted to the succeeding vehicle 2b flows to the rear side of the preceding vehicle 2a, In some cases, a sufficient signal wave may not reach the vehicle 2b.
Therefore, only when the train 2 has entered the track circuits 2T to 5T and is on the track, the switching relays 7a and 7b are switched and transmitted to the corresponding track circuit, and one section behind the train on-track section is signal-free. It is a section. In order to shorten the interval between trains, a system is adopted in which this non-signal section is set as a normal stop section, and a subsequent train can enter without a control signal wave.

[0004]

When a train enters the above-mentioned no-signal section, the noise generated by the vehicle, the return current included in the return current returning to the substation via the track circuit, or the induction noise from the parallel opposite line is reduced. When received, since there is no signal wave in that section, these noises are likely to become pseudo signals, and the selection between pseudo signal waves and normal signal waves was insufficient.

[0005] In addition, the no-signal section is an allowable stop section in which a train can travel under established conditions. If the train enters at a low speed, it stops near the entrance of the section and the train interval is not shortened. I will.

SUMMARY OF THE INVENTION The present invention has been made to solve such a disadvantage, and an object of the present invention is to provide an ATC apparatus which can eliminate the influence of a pseudo signal wave and can further shorten the train interval.

[0007]

An ATC apparatus according to the present invention comprises an ATC transmitter having a signal wave generator, an error correction code adder, and a transmitter, a receiver, a code tester, a code information decoder, and a speed controller. It comprises a control pattern generating section, an ATC on-board device having a speed control section and a speed control pattern fixing section, and the signal wave generating section of the ATC transmitter encodes train entry position information and adds an error correction code. The unit generates error information by adding an error correction code to the encoded end-of-entry range end position information, and the transmission unit amplifies the generated information and transmits it to the boundary point on the train exit side of the non-resonant track circuit. Then, the receiving unit of the ATC on-board device receives the information sent to the track circuit, and the code verifying unit verifies the received code information to confirm whether the received information is normal code information or no signal. The code information decryption unit receives the received code The code information speed control pattern generation unit generates a speed control pattern up to the permissible entry point of the own train based on the decoded information, and the speed control unit generates the speed control pattern based on the generated speed control pattern. The speed is controlled, and the speed control pattern fixing unit fixes the speed control pattern generated up to that time by the speed control pattern generation unit when the code verification unit detects no signal. I do.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An ATC device according to the present invention has an ATC transmitter installed on the ground and an ATC on-board device mounted on a train. The ATC transmitter has a signal wave generation unit, an error correction code addition unit, and a transmission unit. The signal generator examines the allowable entry position information of the following vehicle based on the on-board position of the preceding vehicle, and encodes the allowable entry terminal position information. The error correction code adding unit adds an error correction code to the coded entry-permitted position information to generate code information, and sends the code information to the transmission unit. The transmitting section modulates the transmitted code information and sends it as an ATC signal wave to a boundary point on the advancing side of the non-resonant track circuit, and transmits it to the following vehicle via the track circuit. Since the code information to which the error correction code is added is transmitted as described above, the reliability of the transmitted information can be improved.

The ATC on-board device has a receiving unit, a sign verification unit, a sign information decoding unit, a speed control pattern generation unit, a speed control unit, and a speed control pattern fixing unit. When the receiving section receives the information transmitted to the track circuit, the code verifying section checks the received code information and confirms whether the received information is normal code information or no signal. If the received information is normal code information, the code information is sent to a code information decoding unit. The code information decoding unit decodes the transmitted code information and sends the entry allowable end position information to the speed control pattern generation unit. The speed control pattern generation unit generates a speed control pattern from the transmitted entry allowable terminal position information to the train entry allowable terminal position. The speed control unit controls the speed of the train according to the generated speed control pattern.

When the following vehicle advances and enters the track circuit, which is a no-signal section immediately after the track circuit where the preceding vehicle is located, the sign verification unit of the succeeding vehicle becomes silent without sending normal code information. Is detected. The speed control pattern fixing unit constantly monitors the result of the check by the sign verification unit, and when it detects that the ATC signal wave has become no signal, the speed control pattern generation unit generates the signal at that time. Fix the speed control pattern. The speed control section controls the speed of the following vehicle in the track circuit, which is a no-signal section, by a fixed speed control pattern. In this way, even in the no-signal section, the following vehicle can travel to the approach-permitted end position.

[0011]

FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention. As shown in the figure, the ATC device has an ATC transmitter 1 installed on the ground and an ATC on-board device 3 mounted on a train 2. The ATC transmitter 1 includes a signal wave generator 11
And an error correction code adding unit 12 and a transmitting unit 13. The signal wave generator 11 encodes the entry-permissible terminal position information according to the position condition of the train 2 sent from the condition communication circuit 4 constituted by a LAN or the like, for example. The error correction code adding unit 12 generates code information by adding an error correction code (cyclic code) to the encoded entry-permitted end position information. The transmission unit 13 modulates the generated code information to provide a signal mixing / separation transformer 5b at a boundary point on the train exit side of the non-resonant track circuit 2T.
To send over.

The ATC on-board device 3 includes a receiving unit 31, a sign verification unit 32, a sign information decoding unit 33, a speed control pattern generation unit 34, a speed control unit 35, and a speed control pattern fixing unit 36.
Having. The receiving unit 31 receives information transmitted to the track circuit 2T. The sign verification unit 32 tests the code information received by the reception unit 31 and checks whether the received information is normal code information or no signal. The code information decoding unit 33 decodes the received code information. Speed control pattern generator 34
Generates a speed control pattern up to the permissible end position of the train 2 by adding speed control conditions such as gradient and curve conditions from the decoded permissible position information. The speed control unit 35 controls the speed of the train 2 according to the generated speed control pattern. The speed control pattern fixing unit 36 fixes the speed control pattern generated so far by the speed control pattern generation unit 34 when the code verification unit 32 detects no signal.

The operation of controlling the speed of the train 2 with the ATC signal wave transmitted from the ATC transmitter 1 configured as described above will be described with reference to the operation explanatory diagram of FIG.

As shown in FIG. 2A, when the preceding vehicle 2a is on the track circuit 5T and the succeeding vehicle 2b is on the track circuit 2T, the ATC provided at the boundary point on the exit side of the track circuit 2T. The signal generation unit 11 of the transmitter 1 transmits the following vehicle 2b based on the on-rail position of the preceding vehicle 2a and the route control result by the interlocking device.
The access permitted position information is tested, and the allowed access position information is encoded and sent to the error correction code adding unit 12. The error correction code adding unit 12 generates code information by adding an error correction code to the encoded entry-permitted position information, and sends the code information to the transmission unit 13. The transmitting unit 13 modulates the transmitted code information and sends it as an ATC signal wave to the boundary point on the advancing side of the track circuit 2T.
The signal is transmitted to the following vehicle 2b via T. Since the code information to which the error correction code is added is transmitted as described above, the reliability of the transmitted information can be improved.

The on-board device 3 of the succeeding vehicle 2b, when receiving the information transmitted to the track circuit 2T by the receiving unit 31, verifies the code information received by the code verifying unit 32, and confirms that the received information is normal code information. Or no signal. If the received information is normal code information, the code information is sent to the code information decoding unit 33. The code information decoding unit 33 decodes the transmitted code information and sends the entry allowable position information to the speed control pattern generation unit 34. The speed control pattern generating section 34 generates a speed control pattern up to the permissible end position of the train 2 by adding speed control conditions such as a gradient and a curve condition from the transmitted permissible position information. That is, as shown in FIG. 2A, the preceding vehicle 2a is on the track circuit 5T and the following vehicle 2b
When the vehicle is on the track circuit 2T, a speed control pattern 8a is generated up to the track circuit 4T, which is the entry allowable end position. The speed control unit 35 controls the speed of the following vehicle 2b according to the generated speed control pattern 8a.

As the preceding vehicle 2a and the following vehicle 2b advance, FIG.
When the preceding vehicle 2a enters the track circuit 6T and the following vehicle 2b enters the track circuit 3T as shown in FIG.
The speed pattern generator 34b generates a speed control pattern 8b up to the track circuit 5T, which is the entry allowable end position, based on the entry information on the allowable position sent from the exit end of the track circuit 3T. Then, as shown in FIG. 2 (c), when the preceding vehicle 2a is on the track circuit 6T and the following vehicle 2b enters the track circuit 4T, the speed pattern generator 34 of the following vehicle 2b is operated in the same manner as described above. Generates a speed control pattern 8c to the track circuit 5T, which is the entry allowable position, based on the entry permission position information sent from the exit end of the track circuit 4T. In this state, the following vehicle 2
As shown in FIG. 2 (d), when the preceding vehicle 2a is on the track circuit 6T and the following vehicle 2b enters the track circuit 5T, which is a no-signal section, as shown in FIG. The sign verification unit 32 detects that no normal sign information is sent and no signal is output. The speed control pattern fixing unit 36 constantly monitors the confirmation result of the sign verification unit 32, and when it detects that the ATC signal wave has become no signal, the speed control pattern generation unit 36 generates the signal before that time. Speed control pattern
8c is fixed. The speed control unit 35 uses the fixed speed control pattern 8c to control the following vehicle 2b in the track circuit 5T.
Control the speed of the car. Therefore, even in the track circuit 5T which is a no-signal section, the succeeding vehicle 2b can be driven to the entry allowable terminal position, and the train operation interval can be greatly reduced.

In this state, as shown in FIG. 2 (e), when the preceding vehicle 2a enters the track circuit 7T, the speed pattern generator 34 of the succeeding vehicle 2b enters the track sent from the exit end of the track circuit 5T. Based on the permissible position information, a speed control pattern 8d up to the track circuit 6T, which is the permissible end position, is generated. The speed control unit 35 controls the speed of the following vehicle 2b in the track circuit 5T by the generated speed control pattern 8d.

[0018]

As described above, according to the present invention, the code information to which the error correction code is added is transmitted from the ATC transmitter installed on the ground to the train via the track circuit. Reliability of the information can be improved.

Further, the ATC on-board device examines the received code information and can confirm whether the received information is normal code information or no signal without being affected by noise.
The C signal can be obtained stably.

Further, when the succeeding vehicle enters the track circuit, which is a no-signal section immediately after the track circuit where the preceding vehicle is located, the succeeding vehicle fixes the speed control pattern generated at that time and fixes it. The speed of the succeeding vehicle in the track circuit, which is a no-signal section, is controlled by the speed control pattern provided, so that the following vehicle can travel to the entry-permissible terminal position even in the no-signal section, thereby operating the train. The interval can be greatly reduced, and the transportation efficiency can be increased.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of an embodiment of the present invention.

FIG. 2 is an operation explanatory diagram of the above embodiment.

FIG. 3 is a block diagram illustrating a configuration of a non-resonant track circuit.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 ATC transmitter 2 Train 3 ATC on-board device 11 Signal wave generation unit 12 Error correction code addition unit 13 Transmission unit 31 Receiving unit 32 Code verification unit 33 Code information decoding unit 34 Speed control pattern generation unit 35 Speed control unit 36 Speed control pattern fixed part

Claims (1)

(57) [Claims] An ATC transmitter having a signal wave generator, an error correction code adder and a transmitter, a receiver, a code tester, a code information decoder, a speed control pattern generator, a speed controller, and a speed. An ATC on-board device having a fixed control pattern unit. The signal wave generation unit of the ATC transmitter encodes the train entry position information, and the error correction code addition unit converts the train entry position information into the encoded entry end range position information. The transmission section amplifies the generated code information and transmits the generated code information to a boundary point on the train exit side of the non-resonant track circuit, and the receiving section of the ATC on-board device includes a track circuit. The code verifying unit verifies the received code information, confirms whether the received information is normal code information or no signal, and the code information decoding unit verifies the received code information. Decode and generate code information rate control pattern Generates a speed control pattern up to the permissible entry position of the own train based on the decoded information, the speed control unit controls the train speed by the generated speed control pattern, and the speed control pattern fixed unit generates a code. An ATC apparatus characterized in that when no signal is detected by a test section, a speed control pattern generated so far is fixed by a speed control pattern generation section.