JP3410229B2 - Ground equipment - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ground device such as an automatic train stop device (hereinafter referred to as "ATS device").

[0002]

2. Description of the Related Art Ground equipment of this type is called "ATS / AT".
C "(Introduction to Electricity for Railway Engineers, Signal Series N
o. 7, published by Japan Railway Electrical Engineering Association), pages 47 to 55, 59 to 62.

In such a ground device, a ground element and a repeater are paired, and a plurality of them are provided in one closed section. The pair of ground wire and repeater can be stopped just before the traffic light,
It is installed in front of the traffic signal at an interval considering the braking performance of the vehicle and the indicated speed. One traffic signal is provided in one block section. The ground element has two matching transformers and an antenna, and transmits the control signal to the antenna through one matching transformer and confirms that the control signal is transmitted to the antenna through the other matching transformer. ing. Further, the on-board signal transmitted from the on-board device is received via the other matching transformer. The repeater has two types of modulators and two types of demodulators. One modulator modulates a control message to obtain a control signal, and the other modulator modulates a vehicle message to obtain a simulated vehicle signal. One demodulator demodulates the control signal and verifies that the control signal is ready for transmission to the onboard equipment. The other demodulator demodulates the on-board signal transmitted from the on-board device and also demodulates the pseudo on-board signal to confirm that the ground element is ready to receive the on-board signal. One code processor is provided in one closed section, and transmits a control message to each of the repeaters, and based on the on-board message from the on-board device, the signal display by train selection is increased, and the stop station False passage prevention, level crossing time control,
Expanded control such as passenger guide broadcasting and provision of information to the operation management system.

[0004]

However, the conventional terrestrial equipment has the following problems. (A) Minimize the repeaters because all the ground elements receive the on-board signals, and all the repeaters have a demodulator for the on-board signals and a modulator that generates a pseudo on-board signal. It is impossible to integrate the repeater and the ground element. This is an obstacle to downsizing and cost reduction. (B) The on-board signal is required for the extension control, but if the on-board signals such as the vehicle type, the destination, the passage / stop, and the braking performance can be received once for each closed section, the on-board signal in the closed section can be received. Extended control can be achieved. Further, in consideration of the improvement in reliability and the operation rate of electronic devices in recent years, it has become an excessive facility to add an on-board signal receiving function to all the ground elements for a backup function.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a ground device in which a ground element and a repeater are integrated to reduce the size and cost.

Another object of the present invention is to provide a ground device which is downsized and reduced in cost while maintaining the extended control function of the vehicle.

Still another object of the present invention is to provide a ground device which is downsized and cost reduced while maintaining the failure diagnosis function of the ground element and the repeater.

[0008]

In order to solve the above problems, a ground apparatus according to the present invention includes a plurality of ground terminals, a code processor, and a repeater in one closed section. Each of the ground elements is provided at intervals along the track and transmits a control signal to the on-board device.The code processor receives the control condition and sends a control message based on the control condition. The repeater is connected between one of the ground elements and the code processor, obtains the control signal based on the control message transmitted from the code processor, The control signal is transmitted to one of the children, and each of the remaining ground children except one of the ground children transmits the control signal based on the control message transmitted from the code processor. I will get it.

In a preferred example, one of the ground elements receives an on-board signal transmitted from the on-board device and supplies the on-board signal to the repeater, and the repeater comprises: An on-board electronic message is obtained based on the on-board signal, and the on-board electronic message is transmitted to the code processor, and the code processor performs expansion control of the vehicle based on the on-board electronic message. Yes, the expansion control of the vehicle is any one or a combination of raising traffic lights by train selection, preventing incorrect passage at stop stations, leveling time control of railroad crossings, providing information to passenger guidance broadcasting and operation management system. Includes matching.

In another preferred example, each of the remaining ground elements except one of the ground elements includes a modulator, a matching transformer, an antenna, a current transformer, and a disconnection detection circuit. The modulator modulates the control message to obtain the control signal, transmits the control signal to the matching transformer, the matching transformer is connected to the antenna, and the antenna is electromagnetically coupled to the on-board device. The control signal is transmitted, the current transformer is connected to the antenna, the current detection signal based on the control signal transmitted to the antenna is supplied to the disconnection detection circuit, and the disconnection detection circuit causes the control message and the The presence or absence of disconnection is determined based on the current detection signal, and the disconnection detection signal is output, and the code processor operates the ground element according to the disconnection detection signal. It is to grasp the state.

In still another preferred example, one of the ground elements has two matching transformers and an antenna, one of the matching transformers is connected to the antenna, and the antenna is electromagnetically coupled to the vehicle. The control signal is transmitted to the upper device, the other one of the matching transformers is connected to the antenna, the control signal transmitted to the antenna is detected, and the detected control signal is returned to the repeater. The repeater includes a modulator and a demodulator, the modulator modulates the control message to obtain the control signal, and the demodulator demodulates the returned control signal to perform the control. Obtaining a message and returning the control message to the code processor, the code processor compares the control message transmitted to the repeater with the control message returned from the repeater. do it, It is intended to grasp the operating state of the serial ground coils and repeaters.

In yet another preferred example, the relay is
Another modulator and another demodulator, the another modulator modulates a pseudo on-vehicle message to obtain a pseudo on-vehicle signal, and the on-vehicle signal is transmitted to one of the ground elements. And the other demodulator demodulates the pseudo on-board signal or the on-board signal supplied from one of the ground elements to obtain the pseudo on-board message or the on-board message, The pseudo on-vehicle message or the on-vehicle message is returned or transmitted to the code processor, and the code processor returns the pseudo control message transmitted to the repeater and the repeater. The operation state of the ground element and the repeater is grasped by comparing with the pseudo control message.

In still another preferred example, one of the ground elements is provided in a front row portion in the traveling direction in the closed section.

[0014]

The ground device has a plurality of ground elements in one closed section. Each of the ground elements are spaced along the track and transmit control signals to the onboard equipment. As a result, the on-vehicle device creates a verification pattern including the basic pattern and the deceleration pattern based on the control signal, and enables vehicle control such as ATS.

The code processor generates a control message based on the control condition. The repeater is connected between one of the ground elements and the code processor, obtains a control signal based on the control message transmitted from the code processor, and transmits the control signal to one of the ground elements. Therefore, one of the ground elements can transmit a control signal unique to itself to the on-board device.

The code processor generates a control message based on the control condition. Each of the remaining ground elements except one of the ground elements obtains a control signal based on the control message transmitted from the code processor. Therefore, each of the remaining ground conductors except one of the ground conductors can transmit a control signal specific to itself to the on-board device without passing through the repeater. As a result, each of the remaining ground elements only needs to have the function of converting the control message contained in the conventional repeater into a control signal, and the cost can be reduced by reducing the number of repeaters. Further, since the shape is not increased even if the function of converting the control message to the control signal is added to the ground element, the cost can be reduced.
Therefore, it is possible to obtain a ground device in which the ground wire and the repeater are integrated to reduce the size and cost.

One of the ground elements receives an on-board signal transmitted from the on-board device. The repeater obtains an on-vehicle electronic message based on the on-vehicle signal received by one of the ground elements, and transmits the on-vehicle electronic message to the code processor. Therefore, the code processor can always obtain the on-board electronic message once when the vehicle passes through the closed section, and can obtain various on-board information including the vehicle number for each closed section. . Further, the code processor can also determine that the vehicle is in the closed section due to the transmission of the on-vehicle message. As a result, when information is transmitted between the code processors in each closed section, vehicle tracking becomes possible.

The code processor controls the expansion of the vehicle based on the message on the vehicle. Therefore, for example, in the closed section between the stations, determine the braking performance of the vehicle, increase the indication of the traffic light for vehicles with good braking performance, in the closed section including the station, determine the passage or stop of the vehicle, A stop pattern is generated for a stopped vehicle to prevent erroneous passage of a stopped vehicle, and for a railroad crossing in front of the course of a station, extended control such as fixed-time railroad crossing control by delay control of railroad crossing when entering a station Can be done. As a result, it is possible to obtain a ground device that is downsized and costs reduced while maintaining the extended control function of the vehicle.

The remaining modulators of the ground elements other than one of the ground elements modulate the control message to obtain the control signal, and transmit the control signal to the matching transformer. The matching transformer is connected to the antenna. The antenna transmits the control signal to the on-board device by electromagnetic coupling. The current transformer is connected to the antenna and supplies a current detection signal based on the control signal transmitted to the antenna to the disconnection detection circuit. The disconnection detection circuit determines the presence or absence of disconnection based on the control message and the current detection signal,
Outputs a disconnection detection signal. The code processor grasps the operating state of the ground element from the disconnection detection signal. In this example, the control signal transmitted from the matching transformer is transmitted to the on-board device by electromagnetic coupling and is also detected by the current transformer. The disconnection detection circuit can determine that the ground wire has no disconnection when the current detection signal is obtained in synchronization with the transmission timing of the control signal. For this reason, the ground element does not need to demodulate the control signal transmitted to the antenna, unlike the conventional repeater, and only the presence or absence of the current detection signal allows the ground element modulator, matching transformer, antenna and current transformer to operate. The quality can be judged. The ground wire can display that the control signal is normally transmitted by the disconnection detection signal. Further, the code processor grasps the operation state of the ground element by the disconnection detection signal based on the control telegram and the current detection signal, and therefore, including the transmission line between the ground element and the code processor, The quality can be judged. As a result, it is possible to obtain a ground device that is downsized and reduced in cost while maintaining the failure diagnosis function of the ground element.

One of the matching transformers constituting one of the ground elements is connected to the antenna and transmits the control signal transmitted from the repeater to the antenna. The antenna transmits the control signal to the on-board device by electromagnetic coupling. The other of the matching transformers is connected to the antenna, detects the control signal transmitted to the antenna, and returns the detected control signal to the repeater. The modulator of the repeater modulates a control message to obtain a control signal.
The repeater demodulator demodulates the returned control signal to obtain a control message. In this example, the control signal transmitted from one of the matching transformers is transmitted to the on-vehicle device by electromagnetic coupling, and is detected by the other matching transformer. Therefore, when the control message obtained by demodulating the control signal returned by the repeater and the transmitted control message are compared, it is possible to determine whether the ground node is good or bad, including the transmission line between the ground element and the repeater. You can judge. When the control telegram obtained by demodulating the returned control signal and the transmitted control telegram match, it can be determined that the ground element normally transmits the control signal.

The repeater returns the control message to the code processor. The code processor compares the control message transmitted to the repeater with the control message returned from the repeater, and grasps the operating states of the ground element and the repeater.In this example, the repeater and the code processor are It is possible to judge the quality of the repeater including the transmission line between them.

Another modulator of the repeater modulates the pseudo on-board telegram and supplies an on-board signal to one of the ground elements. Another demodulator of the repeater demodulates the pseudo on-board signal supplied from one of the ground elements, and returns the pseudo on-board message to the code processor. The code processor compares the pseudo control message transmitted to the repeater with the pseudo control message returned from the repeater to grasp the operating states of the ground element and the repeater. In this example, the code processor can confirm that the ground element and the repeater are in a state where they can receive the onboard signal before receiving the regular onboard signal.

In the example in which one of the ground elements is provided in the frontmost row portion in the traveling direction in the closed section, it is possible to detect the time immediately before the vehicle advances the closed section. Therefore, when the code processors in each closed section are connected via the communication line, control continuity can be obtained when the vehicle moves out of the closed section and enters the closed section ahead of the route.

[0024]

1 is a block diagram showing the configuration of a ground device according to the present invention. The figure shows the case of application to an ATS-P type system. The ground device is usually composed of a plurality of closed sections, but for convenience of explanation, the description will be limited to one closed section. The ground device according to the present invention includes a plurality of ground elements 11 to 1n, a repeater 2, and a code processor 3 in one closed section. Reference numeral 4 is a track, 5 is a vehicle, and 6 is a traffic light.

The ground elements 11 to 1n are provided at intervals L1 to Ln along the track 4 and have control signals S11 to S1n.
Is transmitted to the on-board device 51. For example, the ground element 11 is located 30 m from the traffic signal 6 and the ground element 12 is located at the traffic signal 6 to 8 m.
The ground element 13 is provided at a position of 5 m, the ground element 13 is provided at a position of 180 m from the traffic light 6, and the ground element 1 n is provided at a position of 600 m from the traffic light 6. The distance L1 is 30 m, the distance L2 is 55 m, and the distance L3.
Is set to 95 m. The block section is 800 m, the block section in front of the track is 350 m, the block section in front of the track is 250 m, and when the block section is “R”, the ground element 11 is 30 m to the stop point. , A control signal S11 of "85" is transmitted from the ground element 12, a control signal S13 of "180" is transmitted from the ground element 13, and a control signal S1n of "600" is transmitted from the ground element 1n. To do. Similarly, when the closed section is “Y”, the closed section in front of the route is the stop section, so that the ground elements 11 to 1n add the length of the closed section of 350 m to “38”.
The control signals S11 to S1n of "0", "435", "530", and "950" are transmitted. When the block segment is “G”, “630”, “685”, “780”, “1”
The control signals S11 to S1n of "200" are transmitted. The control signals S11 to S1n are given as FSK signals having a carrier center frequency of 1.7 MHz and 64 kbaud, as in the conventional case. The on-board device 51 includes an on-board antenna 511 and a control circuit 5.
It is composed of 12 and.

The repeater 2 is connected between the ground element 11 and the code processor 3, and obtains the control signal S11 based on the control telegram D11 transmitted from the code processor 3 to the ground element 11. To transmit. The content of the control message D11 is “30” when the block section is “R” indication, for example. The control message D11 is given as an FSK signal having a carrier center frequency of 1.7 kHz and 1200 baud, as in the conventional case. The control signal S11 is the control message D1 as in the conventional case.
1 is demodulated once, converted from 1200 baud to 64 kbaud and FSK modulated.

The remaining ground elements 12 to 1 excluding the ground element 11
n is a control message D12 to D transmitted from the code processor 3.
The control signals S12 to S1n are obtained based on 1n. The contents of the control telegrams D12 to D1n are, for example, "R" when the closed section is concerned.
In the case of the actual display, it is “85” to “600”. Control message D
12 to D1n have carrier center frequencies of 1.7 kHz and 12
It is provided as a 00 baud FSK signal. Control signal S1
2 to S1n demodulate control messages D12 to D1n once,
Converted from 1200 baud to 64k baud and obtained by FSK modulation.

The control condition S0 is input to the code processor 3, and the control messages D11, D12 to D are generated based on the control condition S0.
1n is generated and transmitted to each of the repeater 2 and the ground elements 12 to 1n. The control condition S0 is generally given as a display condition or the like. The embodiment corresponds to the representation of the traffic light 6 and is provided by the instrument box 7. The control telegrams D11 to D1n are, for example, by the polling method, the repeater 2 and the ground elements 12 to 1n.
Be transmitted to.

As described above, the ground device has a plurality of ground elements 11 to 1n in one closed section. Ground child 11
1 to 1n are provided at intervals L1 to Ln along the track 4, and control signals S11 to S1n are transmitted to the on-board device 5 respectively.
Send to 1. Therefore, the on-board device 51 uses the control signal S
A check pattern TP1 including a basic pattern and a deceleration pattern is created based on 11 to S1n, and vehicle control such as ATS becomes possible. In the illustrated example, since the braking performance of the vehicle 5 is 600 m, even if the “blue” indication is suddenly changed to the “red” indication during traveling in the closed section, the on-board device 51 is configured to 1n to "600" control signal S1n
The verification pattern TP1 can be created at the time of receiving. After that, when the control signal S13 of "180" is received from the ground element 13, the control signal S12 of "85" is output from the ground element 12
Control signal S of "30" from the ground element 11 at the time of receiving
When 11 is received, the speed can be checked, the quality of the deceleration can be determined, and the vehicle 5 can be stopped before the traffic light 6. If the closed section is shorter than 600 m, the vehicle can be stopped in front of the traffic light 6 by lowering the speed by setting the current display as a lower display, for example, “Y” display.

The code processor 3 generates a control message D11 based on the control condition S0. The relay 2 is connected between the ground element 11 and the code processor 3, obtains the control signal S11 based on the control message D11 transmitted from the code processor 3, and transmits the control signal S11 to the ground element 11. . Therefore, the ground element 11 can transmit the control signal S11 unique to itself to the on-board device 51.

The code processor 3 generates control telegrams D12 to D1n based on the control condition S0. The remaining ground elements 12-1n except the ground element 11 obtain the control signals S12-S1n based on the control telegrams D12-D1n transmitted from the code processor 3. For this reason, the ground elements 12 to 1n do not use the repeater 2 to control their own control signals S12 to S1.
n can be transmitted to the on-board device 51. Control message D12 to D1
n has a carrier center frequency of 1.7 kHz, as in the conventional case.
It is provided as a 200 baud FSK signal. Control signal S
12 to S1n have carrier center frequencies of 1.7 MHz and 64
It is provided as a k-baud FSK signal. As a result, the ground elements 12 to 1n are controlled by the control message D1 of the conventional repeater 2.
It suffices to have a function of converting 2 to D1n into control signals S12 to S1n, and the cost can be reduced by reducing the number of repeaters 2. In addition, the control message D1 is transmitted to the ground elements 12 to 1n.
Since the shape is not increased even if the function of converting the 2-D1n control signals S12 to S1n is added, the cost can be reduced. As a result, it is possible to obtain a ground device in which the ground wire and the repeater are integrated to reduce the size and cost.

The ground element 11 of the embodiment receives the on-board signal S2 transmitted from the on-board device 51. The on-board signal S2 is
As in the conventional case, the carrier center frequency is 3.0 MHz and is given as a 64 kbaud FSK signal. The repeater 2 obtains the on-vehicle electronic message D2 based on the on-vehicle signal S2 received by the ground element 11, and transmits the on-vehicle electronic message D2 to the code processor 3. The on-vehicle telegram D2 is given as an FSK signal having a carrier center frequency of 1.7 kHz and 1200 baud. In this example, the code processor 3 can always obtain the on-board telegram D2 once when the vehicle 5 passes through the closed section, and can obtain various on-board information including the vehicle number for each closed section. Obtainable. In addition, the code processor 3 can also determine that the vehicle 5 is in the closed section due to the transmission of the on-board telegram D2. Therefore, when the on-vehicle information is transmitted between the code processors 3 in each closed section, vehicle tracking becomes possible.

The code processor 3 of the embodiment controls the expansion of the vehicle based on the on-vehicle telegram D2. In this example, in the closed section between the stations, the braking performance of the vehicle 5 is determined,
Raise the traffic light 6 to the vehicle 5 with good braking performance, determine whether the vehicle 5 is passing or stopping in the closed section including the station, and prevent erroneous passage due to the occurrence of the check pattern TP1 when it is determined that the vehicle is a stopped vehicle. For a railroad crossing in front of the route, extended control such as constant time control of railroad crossing can be performed by delay control of railroad crossing when entering a station. Thereby, while maintaining the extended control function of the vehicle 5,
It is possible to reduce the size and cost of the ground equipment.

FIG. 2 is a diagram showing a specific circuit configuration of the ground equipment shown in FIG. In the figure, the same reference numerals as those in FIG. 1 denote the same components. Ground element 13 ~ 1n
Are omitted because they have the same configuration as the ground element 12.

The ground element 12 includes a modulator 121, a matching transformer 122, an antenna 123, and a current transformer 1.
24 and a disconnection detection circuit 125. Modulator 12
1 modulates the control message D12 to obtain the control signal S12, and transmits the control signal S12 to the matching transformer 122.
The matching transformer 122 is connected to the antenna 123. The antenna 123 is connected to the on-board device 51 by electromagnetic coupling.
To the control signal S12. Current transformer 124
Is connected to the antenna 123 and supplies the current detection signal S13 based on the control signal S12 transmitted to the antenna 123 to the disconnection detection circuit 125. The disconnection detection circuit 125
The presence / absence of a wire break is determined based on the control message D12 and the current detection signal S13, and the wire break detection signal D32 is output. The disconnection detection signal D32 may be any signal as long as it indicates the presence or absence of disconnection. The disconnection detection signal D32 of the embodiment is configured to return the input control message D12 to the code processor 3. The disconnection detection circuit 125 is configured by an AND circuit, and when the control message D12 is “present” and the current detection signal S13 is “present”, it is determined that the ground element 12 has no disconnection, and the disconnection detection signal D32 is output. To do. The disconnection detection signal D32 has the same configuration as the control message D12 except that the transmission source is different.

In this example, the control signal S12 transmitted from the matching transformer 122 is electromagnetically coupled to the on-board device 5.
In addition to being transmitted to 1, the current transformer 124 also detects it. The disconnection detection circuit 125 can determine that the ground wire 12 has no disconnection when the current detection signal S13 is obtained in synchronization with the transmission timing of the control signal S12. Therefore, the ground element 12 does not need to demodulate the control signal transmitted to the antenna, unlike a conventional repeater, and only the presence or absence of the current detection signal S13 allows the ground element modulator 121, the matching transformer 122, and the antenna. 123 and current transformer 12
The quality of 4 can be determined. The ground wire 12 has a disconnection detection signal D.
32 indicates that the control signal S12 is normally transmitted.

Furthermore, the code processor 3 compares the control message D12 transmitted to the ground element 12 and the disconnection detection signal D32 transmitted from the ground element 12 to grasp the operating state of the ground element 12. For this reason, the code processor can determine the quality of the ground element including the transmission line between the ground element and the code processor.

As a result, it is possible to obtain a ground device which is downsized and reduced in cost while maintaining the failure diagnosis function of the ground element.

Although not shown, the disconnection detection circuit 125 is
Instead of the control message D12 of 1.7 kHz and 1200 baud, a control signal S12 of 1.7 MHz and 64 kbaud can be used. When the control signal S12 is used, 1.
1.7MHz from 1200kHz FSK signal at 7kHz
The operating state can be grasped by including the circuit for converting the FSK signal of z and 64 k baud. In this case, a conversion circuit for converting from 64 kbaud to 1200 baud and an FSK modulation circuit are provided after the disconnection detection circuit 125.

The ground element 11 is a matching transformer 111, 11
3 and an antenna 112. Matching transformer 1
The antenna 11 is connected to the antenna 112. Antenna 1
12 is a control signal S1 to the on-board device 51 by electromagnetic coupling.
1 is transmitted. The matching transformer 113 has an antenna 112.
Control signal S1 connected to the antenna 112 and transmitted to the antenna 112.
1 is detected, and the detected control signal S11 is returned to the repeater 2. The repeater 2 has a modulator 21 and a demodulator 22. The modulator 21 modulates the control message D11 to obtain the control signal S11, and outputs the control signal S11 to the matching transformer 11
Supply to 1. The demodulator 22 uses the returned control signal S1.
1 is demodulated to obtain a control message D31.

In this example, the control signal S11 transmitted from the matching transformer 111 is electromagnetically coupled to the on-board device 5.
1 and is also detected by the matching transformer 113. Therefore, comparing the control message D31 obtained by the repeater 2 demodulating the control signal S11 with the transmitted control message D11, the transmission line between the ground element 11 and the repeater 2 is also included. The quality of 11 can be determined. When the control message D31 obtained by demodulating the returned control signal S11 and the transmitted control message D11 match, it can be determined that the ground element 11 is transmitting the control signal S11 normally.

Further, the demodulator 22 returns the control message D31 to the code processor 3. The code processor 3 compares the control message D11 transmitted to the repeater 2 and the control message D31 returned from the repeater 2 to grasp the operating states of the ground element 11 and the repeater 2. For this reason, the code processor 3 is
It is possible to determine the quality of the ground element 11 and the repeater 2 including the transmission line between the repeater 1 and the repeater 2 and the transmission line between the repeater 2 and the code processor 3.

The repeater 2 has another modulator 23 and another demodulator 24. The other modulator 23 modulates the pseudo on-vehicle message D41 transmitted from the code processor 3, obtains the pseudo on-vehicle signal S4, and supplies the on-vehicle signal S4 to the ground element 11. Another demodulator 24 demodulates the simulated on-board signal S4 or the on-board signal S2 supplied from the ground element 11, obtains the simulated on-board message D42 or the on-board message D2, and the simulated on-board message D42. Alternatively, the on-vehicle telegram D2 is returned or transmitted to the code processor 3. The code processor 3 performs expansion control of the vehicle based on the on-vehicle telegram D2. In this example, the on-board telegram D2
This makes it possible to control the vehicle such as raising traffic lights, preventing erroneous passage at stop stations, controlling the time for railroad crossings, broadcasting passenger information, and providing information to the operation management system.

Further, the code processor 3 compares the pseudo control message D41 transmitted to the repeater 2 with the pseudo control message D42 returned from the repeater 2 to operate the ground element 11 and the repeater 2. Understand the condition. In this example, before the code processor 3 receives the regular on-board signal S2,
It can be confirmed that 1 and the repeater 2 are in a state where they can receive the on-board signal S2.

FIG. 3 is a diagram for explaining specific vehicle control using the ground device according to the present invention. The figure assumes that the closed section 3T is “R” and the closed section 4T is “Y”. Each closed section has the same structure as in FIG.

The ground elements 131 and 141 have the closed sections 3T,
It is provided at the frontmost row portion in the traveling direction at 4T. In this example, it is possible to detect immediately before the vehicle 5 moves out of the closed sections 3T, 4T. Therefore, when the code processors 33 and 34 of the closed sections 3T and 4T are connected via the communication line, the continuity of control when the vehicle 5 moves out of the closed section 4T and enters the closed section 3T. Is obtained.

The code processor 33 in the closed section 3T is used by the vehicle 5
Even if it does not detect that the vehicle 5 is in the closed section 3T by receiving the on-board signal S2 from, the vehicle information S3 indicating that the vehicle 5 is in the closed section 4T is output from the code processor 34 of the closed section 4T. When the vehicle 5 receives the vehicle, the vehicle control can be performed as if the vehicle 5 advances out of the closed section 4T and enters the closed section 3T. Thereby, for example, the ground element 133
Is 180 meters away from the traffic signal 63, the ground element 1
The control signal S1 of "180" can be transmitted from 33. Further, the code processor 33 of the closed section 3T receives the vehicle information S3 that the vehicle 5 is in the closed section 4T from the code processor 34 of the closed section 4T, and then receives the on-board signal S2 of the closed section 3T. The deceleration of the vehicle 5 can be calculated and the control state of the vehicle 5 can be grasped from the time until.

FIG. 4 is a diagram for explaining another specific vehicle control using the ground device according to the present invention. The figure shows closed section 3
T is "R" to "Y", closed section 4T is "Y"
It is assumed that the display is increased from the display to the “G” display. Each closed section has the same structure as in FIG.

In the control of the vehicles before and after, the simultaneous entry of two vehicles into one closed section is prohibited, and the vehicles before and after are normally controlled after one closed section. Therefore, when the preceding vehicle 5a advances into the closed section, the following vehicle 5b enters the closed section in the highest density operation. In the embodiment, when the preceding vehicle 5a comes to the leading portion of the closed section 1T in front of the closed section 2T where the following vehicle 5b stops, the following vehicle 5b is updated to the closed section 2T. I am entering. This will be specifically described with reference to FIG. The code processor 31 receives the on-vehicle signal S2 from the vehicle 5a and receives the vehicle 5a in the closed section 1T.
Vehicle information S3 that there is a line is code processors 32, 3
3 to 34. The code processor 32 outputs the control message D1 corresponding to the "R" indication, the code processor 33 the "Y" indication, and the code processor 33 the "G" indication. The ground element 133 transmits the control signal S1 of “530” instead of the control signal S1 of “180”. The following vehicle 5b updates the check pattern TP1 according to the control signal S1 of "530", accelerates, and advances into the closed section 3T. The ground child 123 is “180”
Control signal S1 is transmitted. The following vehicle 5b is the ground element 1
Based on the control signal S1 of “180” received from 23,
The speed check of the check pattern TP1 is performed. This allows
Even when the preceding vehicle 5a is stopped in the closed section 1T, the following vehicle 5b can be controlled up to the closed section 2T. For this reason,
It enables safe and high-density vehicle control.

[0050]

As described above, according to the present invention, the following effects can be obtained. (A) It is possible to provide a ground device in which the ground element and the repeater are integrated to reduce the size and cost. (B) It is possible to provide a ground apparatus that is downsized and costs reduced while maintaining the extended control function of the vehicle. (C) While maintaining the fault diagnosis function of the grounding element and the repeater,
It is possible to provide a ground device that is downsized and costs are reduced.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of a ground device according to the present invention.

FIG. 2 is a diagram showing a specific circuit configuration of the ground device shown in FIG.

FIG. 3 is a diagram illustrating a specific vehicle control using the ground device according to the present invention.

FIG. 4 is a diagram illustrating another specific vehicle control using the ground device according to the present invention.

[Explanation of symbols]

11-1n ground child 2 repeaters 3 Code processor 4 orbits 5 vehicles 51 On-board equipment S0 control condition D11-D1n control message S11 to S1n control signals S2 On-board signal D2 car telegram

─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Yoshihiro Otsuka 2-4-24 Shibata, Kita-ku, Osaka City, Osaka Prefecture West Japan Railway Company (72) Inventor Hirofumi Ogushi 2-chome, Shibata, Kita-ku, Osaka-shi, Osaka No. 4-24 West Japan Railway Company (72) Inventor Yasuo Saito 1-13-8 Kamikizaki, Urawa-shi, Saitama Nihon Signal Co., Ltd.Yono Works (72) Inventor Ichiro Fukatsu Kamikizaki, Urawa-shi, Saitama Prefecture 1-13-8 Nihon Signal Co., Ltd. In Yono Works (56) References JP-A-6-22402 (JP, A) JP-A-6-87448 (JP, A) Actual Kaihei 1-161170 (JP, U) (58) Fields investigated (Int.Cl. ⁷ , DB name) B61L 1/00-29/32

Claims (6)

(57) [Claims] 1. A ground device including a plurality of ground elements, a code processor, and a repeater in one closed section, each of the ground elements being provided at intervals along a trajectory. , A control signal is transmitted to an on-board device, the code processor receives control conditions, and generates a control message based on the control conditions. And the code processor, and obtains the control signal based on the control message transmitted from the code processor, and transmits the control signal to one of the ground elements, The ground device, wherein each of the remaining ground members except one of the ground members obtains the control signal based on the control message transmitted from the code processor. 2. One of the ground elements receives an on-board signal transmitted from the on-board device, and supplies the on-board signal to the repeater, wherein the repeater is the vehicle. Get the telegram on the vehicle based on the above signal,
The code processor transmits the on-board telegram to the code processor, the code processor controls expansion of the vehicle based on the on-board message, and the expansion control of the vehicle is a traffic signal by train selection. 2. The ground device according to claim 1, which includes any one of or a combination of the display of information, prevention of erroneous passage at a stop station, level control of railroad crossings, passenger guidance broadcasting, and provision of information to an operation management system. . 3. Each of the remaining ground elements other than one of the ground elements includes a modulator, a matching transformer, an antenna, a current transformer, and a disconnection detection circuit, and the modulator The control message is modulated to obtain the control signal, the control signal is transmitted to the matching transformer, the matching transformer is connected to the antenna, and the antenna electromagnetically couples the control signal to the on-board device. Transmit,
The current transformer is connected to the antenna, and supplies a current detection signal based on the control signal transmitted to the antenna to the disconnection detection circuit, and the disconnection detection circuit disconnects based on the control message and the current detection signal. The ground device according to claim 1 or 2, wherein the code processor determines the presence / absence of a ground wire and outputs a disconnection detection signal, and the code processor grasps an operating state of the ground element based on the wire disconnection detection signal. . 4. One of the ground coils has two matching transformers and an antenna, one of the matching transformers is connected to the antenna, and the antenna is electromagnetically coupled to the onboard device to control the onboard device. A signal is transmitted, the other of the matching transformer is connected to the antenna, the control signal transmitted to the antenna is detected, and the detected control signal is returned to the relay, wherein the relay is A modulator, and a demodulator, the modulator modulates the control message to obtain the control signal, the demodulator demodulates the returned control signal to obtain the control message, The control message is returned to the code processor, and the code processor compares the control message transmitted to the repeater and the control message returned from the repeater to the ground signal. Child and repeater Ground according to claim 1, 2 or 3 is to grasp the work state. 5. The repeater includes another modulator and another demodulator, and the other modulator modulates a pseudo on-vehicle message to obtain a pseudo on-vehicle signal, and A pseudo on-board signal is supplied to one of the ground elements, and the other demodulator demodulates the pseudo on-board signal or the on-board signal supplied from one of the ground elements to generate the pseudo-on-board signal. The on-board electronic message or the on-board electronic message is obtained, and the pseudo on-board electronic message or the on-board electronic message is returned or transmitted to the code processing device, and the code processing device is transmitted to the relay device. The ground device according to claim 4, wherein the pseudo control message is compared with the pseudo control message returned from the repeater to grasp the operating states of the ground element and the repeater. 6. One of the ground elements is provided in a frontmost row portion in a traveling direction in the closed section.
The ground device according to 2, 3, 4 or 5.