JP3443792B2 - Digital automatic train control device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a digital automatic train control device for transmitting stop target position information to a train as digital information for control.

[0002]

2. Description of the Related Art Conventionally, as a method for controlling the train speed in order to prevent a train collision, for example, Japanese Unexamined Patent Publication No. 2000-3261.
No. 7 publication, when a speed limit pattern is generated on a car, an on-board control device on a train receives stop target position information from a ground control device and calculates a pattern in which the gradient information of a route is reflected on the stop target position information. It shows how to do it.

In Japanese Patent Laid-Open No. 2-109770, information is transmitted and received between a ground control device and an on-board control device, and train stop target position information is transmitted from the ground control device to the on-board control device. The method of giving is shown.

Further, Japanese Laid-Open Patent Publication No. 1-209823 discloses a method of transmitting digital information from a vehicle control device to a ground control device by a frequency modulation signal.

[0005]

However, in the above-mentioned conventional technique, since the stop target position is transmitted as digital information in the form of distance units, if the entire length of the route becomes long, the position required according to it becomes longer. As the number of digits of information increases, it is necessary to set the transmission capacity of the transmission line between the ground control device and the onboard control device to be sufficiently large.

In addition, particularly when there are a plurality of routes along the way such as in a station yard, it is necessary to transmit the information for specifying the route together, so that the amount of information to be transmitted becomes large and the load on the transmission line further increases. To do.

An object of the present invention is to transmit information required for train control while suppressing the load on the transmission line.

[0008]

In order to solve the above-mentioned problems, the present invention is a digital system for transmitting train stop target position information as digital information from a ground control device to an on-board control device on a train for train control. In the automatic train control device, the track is divided into the train position on the track and the stop target position.
It is managed in units of blocks made up of one or more track circuits, and it is the stop pattern information according to the relationship between the train position block and the stop target position block having the stop target position .
The distance to the stop target position and its distance
Stop pattern information including stop speed information including the information of the speed limit, stop pattern information creating means for providing the stop pattern information to the ground control device and the on-board control device, and a train stop provided in the ground control device. On-vehicle means for obtaining a target position, converting the stop target position into stop target block information using the stop pattern information from the stop pattern information creating means, and transmitting the stop target block information to the on-board controller. The train is installed in the controller
Using the position detecting means for obtaining the distance traveled by the train , and the train position block information obtained by the position detecting means and the stop target block information transmitted from the ground side means, the stop pattern from the stop pattern information creating means. Stop of the transmitted stop target block from the information
It is characterized in that a stop pattern corresponding to the target position is obtained, and a vehicle upper side means for controlling the speed of the train by the stop pattern is provided.

According to the above construction, only the stop target block information is transmitted from the ground side means to the vehicle upper side means.
The amount of transmitted information is relatively small, and the load on the transmission path between the ground control device and the onboard control device can be reduced.

In constructing the above digital automatic train control device, the following elements can be added. (1) When there are a plurality of routes of the train, the stop pattern information creating unit creates the stop pattern information for each route, and the ground side unit adds the information of the route to be used to the stop target block information. While transmitting to the on-board control device, the on-board means is configured to obtain the stop pattern using the train position block information, the stop target block information, and the route information. (2) The vehicle upper means is configured to limit the route in advance and uniquely obtain the stop pattern using the train position block information obtained from the stop target block information and the position information of the own train. . (3) The car side means transmits the train position block information as digital information to the ground side means, and the ground side means performs train position management using the train position block information from the car side means. It is configured. (4) The ground-side means detects the position of the train, adds the train position block information to the information to be transmitted to the vehicle upper side means, and transmits the train position block information to the vehicle upper side means as digital information.
The vehicle upper means is configured to use the train position block information received as the position information of the own train for speed control of the train. (5) The car upper side means compares the train position block information from the ground side means with the train position block information obtained from the position detecting means of the own train, and if the both train position block information matches. If the train speed control continues,
If they do not match, it is determined to be a device failure and the train is brake-controlled promptly.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. Here, as an apparatus to which the present invention is applied, a case where train detection and information transmission are performed by using a track circuit having a rail of a railway as a medium will be described as an example.

FIG. 1 shows the overall configuration of a digital automatic train control device according to the present invention. This digital automatic train control device is an on-board control device 1 mounted on a train 1.
0, a ground control device 20 provided on the ground side, a data management device 30, and a transmission line 40 connecting the onboard control device 10 and the ground control device 20.

The data management device 30 includes a storage unit 31 that stores route information such as a slope and a curve of a route, a station position, a storage unit 32 that stores block unit information indicating division units of the route, and a train brake. Storage unit 3 that stores performance information
3 and the block unit stop pattern information generation and creation unit 34
And a storage unit 35. Then, the data management device 30 stores each piece of information from the storage units 31, 32, and 33 prior to the control in the block unit stop pattern information generation and creation unit 3.
4, the block unit stop pattern information is created, and the block unit stop pattern information is stored in the storage unit 35. The data management device 30 also includes a storage unit 35.
The block unit stop pattern information stored in the control unit 1 for both the on-vehicle control device 10 and the ground control device 20 is stored.
0, 20 give before performing control.

The ground control device 20 includes a data management device 30.
Storage unit 21 for storing the block unit stop pattern information given from the train position management unit 22 and the route management unit 2
3 and a train control information generation unit 24. The train position management unit 22 determines the on-rail position of the train based on the state in which the track circuit is lifted. Further, the route management unit 23 allocates routes to each train using the on-rail position information. Then, the train control information generation unit 24 creates stop target position information for each train using these on-rail position information and route information, and the train control information that is the information used by the train for control. The information is given to the train as digital information via the transmission line 40.

Here, the stop target position information becomes the stop target block information according to the block unit stop pattern information, and is given to the on-vehicle controller 10 via the transmission path 40 by the track circuit transmission.

The transmission line 40 for transmitting digital information transmits digital information as it is as a digital signal.
Since the communication distance and the transmission quality are often limited, the most efficient modulation method is used according to the transmission medium used. Since track circuit transmission is assumed in the present embodiment, information transmission is performed by converting digital information into a frequency modulation signal or a phase modulation signal using, for example, a frequency modulation method or a phase modulation method.

The on-board control device 10 includes a data management device 30.
To the stop target position given by
A storage unit 11 that stores block unit stop pattern information including corresponding speed limit information, and a train position management unit 1
2, a train position block information generation unit 13, an applied pattern search unit 14, and a speed control unit 15. The train position management unit 12 obtains the traveling distance from the rotation speed of the wheels.
Further, the train position block information generation unit 13 creates train position block information from the block unit stop pattern information in the storage unit 11. Then, the applied pattern search unit 14
From the stop target block information received from the ground control device 20 and the train position block information from the train position block information generation unit 13, block unit stop pattern information used for control from the block unit stop pattern information ,
That is, the stop target block received from the ground control device 20.
The block unit stop pattern information corresponding to the stop target position in the lock is obtained, and the speed control unit 15 controls the speed of the train.

In the present embodiment, the data management device 30 uses stop pattern information creating means as the ground control device 20.
Internal storage unit 21, train position management unit 22, route management unit 23
The train control information generation unit 24 is the ground side means, and the storage unit 11, the train position management unit 12, the train position block information generation unit 13, the applied pattern search unit 14, and the speed control unit 15 in the onboard control device 10 are the vehicles. Each constitutes the upper side means.

FIG. 2 shows an example of a procedure for creating block unit stop pattern information performed by the data management device 30. Here, it is assumed that the block is composed of one or more track circuits, and stop pattern information corresponding to the stop target point 2 in the block 3 is created.

From the route information, it can be seen that the block 3 is composed of the track circuit 4, and the block 2 is composed of the track circuit 2 and the track circuit 3. Further, it can be seen that each track circuit has an upslope section and a downslope section.

The braking performance of a train is affected by the slope,
For example, it becomes a deceleration factor in the uphill section and an acceleration factor in the downhill section. Therefore, the braking performance of the train is higher than the original performance in the uphill section, and is less than the original performance in the downhill section. Therefore, in the block unit stop pattern information, the information is created in consideration of the gradient of the section.

As a result, for the stop target position 2, the train stop pattern corresponding to the brake performance information is obtained as the relationship between the distance to the stop target and the speed limit. Furthermore, by managing the stop target position and each track circuit in blocks, information corresponding to the stop target block number corresponding to the stop target position and the train position block number corresponding to the train position from the block unit stop pattern information It becomes possible to search. Table 1 shows an example of the block unit stop pattern information corresponding to FIG.

[0023]

[Table 1]

The block unit stop pattern information is given in advance to the on-vehicle control device 10 and the ground control device 20, and each control device 10, 20 performs control using the block unit stop pattern information.

The ground control device 20 gives the stop target block number to the train having the onboard control device 10 instead of giving the stop target position information. The stop target block number is created by converting the train position information managed by the train position management unit 22 and the stop target position information managed by the route management unit 23 from block unit stop pattern information into block unit information. As a result, for example, instead of transmitting the absolute position on the route as the stop target position in units of meters, only the block number needs to be transmitted as the stop target block information. When transmitting information, it is possible to reduce the amount of information via the transmission path 40.

The on-vehicle control device 10 uses the stop target block information provided from the ground control device 20 via the transmission path 40 to limit the distance to the stop target and the restriction on the distance.
Corresponding to the stop target position of the stop target block from the block unit stop pattern information that has speed information .
That to find the stop pattern information. At this time, regarding the position information of the train, from the block unit stop pattern information to the result of the train position management unit 12 that manages the position by obtaining the traveling distance of the train using a detection unit such as a speed generator. The train position block of the train is determined and used for the search. In the search, the stop pattern information to be used is determined from the block unit stop pattern information based on the stop target block number and the train presence block number. Therefore, the speed control unit 15 can control the speed of the train from the stop pattern information. Become.

Consider, for example, a case where the train is on the track circuit 2 and the stop target position of the train is the stop target position 2. In addition, the stop target position information itself describes the absolute position on the route in units of meters.

In general, since the railway line extends over 100 [km], one point on 100,000 [m], that is, 6-digit position information is required to uniquely indicate the absolute position of the stop target position information within this range. become. Therefore, if the absolute position of the stop target position information is transmitted as it is, the transmission path 40 needs to transmit 6-digit information.

The ground control device 20 obtains from the train position management unit 22 that the on-rail track circuit of the train is the track circuit 2. Further, the route management unit 23 obtains that the route given to the train is the route to the stop target position 2. From this information and the block unit stop pattern information, the information to be transmitted to the train as the stop target block information is the stop target block number corresponding to the stop target position "3".
Therefore, it is transmitted to the on-board control device 10 of the train via the transmission line 40.

The on-board control device 10 for the train searches the block target stop pattern information shown in FIG. 2 for the stop target block 3 as the stop target information used for control from the received stop target block number "3". To do. Further, from the train position management unit 12, the in-rail position of the train is track circuit 2
Therefore, the train position block number is “2” from the block unit stop pattern information. From this, since the stop target block number is “3” and the train presence block number is “2”, it is possible to obtain the corresponding pattern information from the block unit stop pattern information and control the speed of the train. Becomes

The total number of block unit stop patterns corresponds to the number of line stop target position information. This depends on the train density of the route and the size and number of stations, but it is about 10
It is often set at intervals of 0 [m]. In other words, if the range of the route is 100 [km], then 100
It is sufficient to set a block unit stop pattern of 1000 units at intervals of [m], and to transmit information specifying one of the 1000 units in control.
Therefore, the transmission line 4 when the block unit stop pattern is used
0 needs to transmit 4-digit information.

From the above comparison, the amount of information between the ground control device 20 and the onboard control device 10 via the transmission line 40 is
The metric unit information of the stop target position has 6 digits, but in the present embodiment, it can be reduced to 4 digits.

Further, a case where the train position information is received from the ground control device 20 will be described. Ground control device 2
Since 0 has the on-rail position block information of the train in question, the on-rail block number is created from this on-rail position block information, and the on-board control is performed via the transmission path 40 together with the stop target block number. It is given to the device 10. In the above case, the block number on the train is “2”.
And the stop target block number "3" is given.

As described above, the onboard control device 10 uses the train position management unit 12 to obtain the train presence block information. Furthermore, by comparing and collating the transmitted on-rail block number and train on-rail block information,
It is possible to confirm the position information of the train that the onboard control device 10 and the ground control device 20 know. In the above case, normally, the on-rail block number managed by the on-board controller 10 is also "2" with respect to the received on-rail block number "2".

As a result of the comparison and collation, if each control device 10 is operating normally, the same information is always matched for comparison of the same information. In other words, if the information does not match,
It can be determined that a failure has occurred in at least one of the control devices 10 and the position information of the train cannot be correctly recognized. Thereby, the failure of each device can be determined.

When the occurrence of a failure in each device is detected, the train is controlled for safety by applying a brake to stop the train.

Next, the case where there are a plurality of paths for the same stop target point will be described. An example of this case is shown in FIG. Here, there are two routes, the main line route and the shunt line route.
Think about when one exists. In addition, the length of the escape route is longer than that of the main route.

Since the main track and the siding track have different track circuits, the track lengths are also different. Therefore, for example, if the block unit stop pattern information of the main route is created at the absolute position of the shunt line route, the difference in the length of each route causes an error, and in this case, the block unit stop pattern information of the main route is generated. Will be treated as longer than it really is. Therefore, when the on-vehicle control device 10 controls according to the block unit stop pattern information, the on-vehicle control device erroneously recognizes a point ahead of the actual stop target position as the stop target position,
There is a possibility that the train will go past the stop target position and enter the track circuit 6 further ahead, and if another train exists in the track circuit 6, a rear-end collision may be considered.

Therefore, in the present embodiment, the block unit stop pattern information is created for each route, and the route information is also added to the information transmitted between the control devices, so that the on-vehicle control device 1
It is realized that 0 is given the correct stop target information. FIG. 4 shows block information created by this method, and Table 2 shows block unit stop pattern information.

[0040]

[Table 2]

The ground control unit 20 also transmits the route information selected by the route management unit 23 to the onboard control unit 10. Here, the main track is "a" and the escape track is "b".
Is expressed in. For example, if a train exists in track circuit 1,
When the shunting route is selected, the ground control device 2
The information that 0 transmits to the on-vehicle control device 10 via the transmission path 40 is the stop target block information “5” and the route information “b”. Based on this information, the onboard controller 10 searches for block “5” from the block unit stop pattern information shown in Table 2, block “1” as the train presence block information, and block unit stop pattern information that is a shunt line course. , It becomes possible to give correct speed control information to the train.

Further, as another method in the case where there are a plurality of paths for the same stop target point, the path is restricted in advance to make only one block unit stop pattern information corresponding to each stop target position, and the stop target position information is obtained. It is possible to search for the block unit stop pattern information only. The target stop position at this time is shown in FIG. Also in FIG.
FIG. 6 shows block information corresponding to the above, and Table 3 shows block unit stop pattern information.

[0043]

[Table 3]

Here, as a method for restricting the route, a case will be described in which a condition, for example, "there is no route passing through the escape line" is set. According to the above conditions, the target route is the main line route to the stop target point 5, the shunt line route to the stop target point 4 (1), and the shunt line route from the stop target point 4 to the stop target point 5 (2). Become. The stop target block information for each of these paths is “31” and “5”.

The siding line path (2) is the siding line path (1)
In the actual control, the route given to the train is updated from the shunt line route (1) to the shunt line route (2) in the stage where the train is present in the block 2B or the block 31. Therefore, the shunting route (2) is a block from the block 2B or the block 31 which is a block that may be updated so that the train can obtain speed pattern information at the time of the updating, and the stop target block. It is necessary to set the speed pattern information for the range up to block 5, which is.

On the other hand, the siding line path (2) does not include a section ahead of the block 1 in the traveling direction. This is because the condition "there is no route passing through the shunt line", so that the update from the shunt line route (1) to the shunt line route (2) does not occur in the front section in the traveling direction.

When the above condition is not present, for example, the case where the update occurs in a state in which the evacuation route (2) includes the front section in the traveling direction and the train exists in the block 1 which is the front section in the traveling direction. The stop target block number is "5" and the train presence block number is "1". When searching the block unit stop pattern information corresponding to this,
The main line route and the shunt line route (2) are targeted, and the speed pattern information used by the train for control cannot be uniquely determined.

On the other hand, when the above conditions are satisfied,
The block that may be updated is block 2
B or block 31. As a result, the block unit stop pattern information used for the control is unique only to the siding line route (2) from the stop target block number “5” and the train presence line block number “2B” or “31” for the train. It becomes possible to ask.

Similarly, when the train exists in the track circuit 1 and the escape route (1) is selected, the information which the ground control device 20 transmits to the onboard control device 10 via the transmission line 40. Is "31" which is the stop target block information.
Further, the train position block information is “1”. From this information, the onboard controller 10 retrieves the block unit stop pattern information whose block unit stop pattern information is "31", and further corrects the train from the pattern corresponding to the train position block information "1". It becomes possible to give speed control information.

When the train is present in the track circuit 1 and the stop target block number "5" is received from the ground control device 20, the stop target block number "5" is obtained from the block unit stop pattern information shown in Table 3. It can be seen that the main route pattern can be used as the route corresponding to the train position block number “1”.

Here, the case where the ground device 20 does not transmit the train position information has been described, but the processing when transmitting the train position is the same as the example of the single course shown in FIG. 2 already described.

In the above-mentioned examples, only the case where the track circuit is used is used. However, the system of the present embodiment uses the track circuit only for train detection and information transmission, and this function is It can also be applied by the method. For example, in FIG.
As shown in FIG.
Information can be transmitted between them.

The position information or train position block information of the train held by the on-board control device 10 is transmitted to the ground control device 20 using the wireless transmission path 50. The ground control device 20 uses the block unit stop pattern information from the position information of the train received via the wireless transmission path 50 or performs the train position management from the received train position block information,
The stop target block information to be given to the train is created. The other procedures are as described above.

[0054]

As described above, according to the present invention,
It is possible to transmit necessary information to the train while reducing the load on the transmission line.

[Brief description of drawings]

FIG. 1 is an overall configuration diagram of a digital automatic train control device according to the present invention.

FIG. 2 is a diagram showing a procedure for generating block unit stop pattern information.

FIG. 3 is a diagram in which target route information is described.

FIG. 4 is a diagram describing block information in the case of transmitting route information regarding a plurality of routes.

FIG. 5 is a diagram in which route information is written when the route of a target route is restricted.

FIG. 6 is a diagram in which block information when a route is restricted with respect to a plurality of routes is described.

FIG. 7 is a diagram showing an example in which the train position management performed by the ground control device is performed by information from the on-board control device.

[Explanation of symbols]

1 train 10 Onboard control device 11 Memory 12 Train position management department 13 Train position block information generator 14 Applied pattern search section 15 Speed control unit 20 Ground control device 21 Memory 22 Train Position Management Department 23 Course Management Department 24 Train control information generator 30 data management device 31, 32, 33, 35 storage unit 34 Block unit stop pattern information creation unit 40 transmission lines 50 wireless transmission path

─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Akira Hyokawa 2-2 Yoyogi, Shibuya-ku, Tokyo Inside East Japan Railway Company (72) Inventor Tsuyoshi Ikehira 2--2 Yoyogi, Shibuya-ku, Tokyo East Japan Railway Company (56) Reference JP-A-8-80852 (JP, A) JP-A-9-267749 (JP, A) JP-A-2002-255032 (JP, A) JP-A-2000-108903 ( JP, A) (58) Fields surveyed (Int.Cl. ⁷ , DB name) B61L 23/14 B60L 15/40 JISC file (JOIS)

Claims (7)

(57) [Claims] 1. A digital automatic train control device that transmits stop target position information as digital information from a ground control device to an on-board control device on a train to control a train, and determines the train position on the track and the stop target position. , Divide the orbit
Stop pattern information according to the relationship between the train position block and the stop target position block having the stop target position , which is managed in units of blocks composed of one or more track circuits.
And the distance to the target stop position and its distance
While creating stop pattern information including information on the corresponding speed limit, stop pattern information creating means for providing the stop pattern information to the ground control device and the on-board control device, provided on the ground control device, A ground side means for obtaining a stop target position, converting the stop target position into stop target block information using the stop pattern information from the stop pattern information creating means, and transmitting the stop target block information to the on-board control device; It is installed in the upper control device and controls the distance traveled by your train.
Position detecting means for obtaining, and the train position block information obtained by the position detecting means by using the stop target block information transmitted from the ground side unit, before from the stop pattern information from the stop pattern information generating means
It corresponds to the stop target position of the transmitted stop target block.
That the stop pattern determined, a digital automatic train control device being characterized in that and a vehicle upper means for controlling the speed of the train by the stop pattern. 2. The digital automatic train control device according to claim 1, wherein when there are a plurality of train routes, the stop pattern information creating means creates stop pattern information for each route,
While the ground side means adds the information of the route to be used to the stop target block information and transmits it to the onboard controller,
The digital automatic train control device, wherein the vehicle upper side means obtains the stop pattern using the train position block information, the stop target block information, and the route information. 3. The digital automatic train control device according to claim 2, wherein the vehicle upper side means restricts a route in advance, and a train position block obtained from the stop target block information and the position information of the own train. A digital automatic train control device, wherein the stop pattern is uniquely obtained using information. 4. The digital automatic train control device according to claim 1, wherein the vehicle upper side means transmits the train position block information as digital information to the ground side means, and the ground side means. Is a digital automatic train control device, wherein train position management is performed using the train position block information from the vehicle upper side means. 5. The digital automatic train control device according to claim 1, wherein the ground-side means detects the position of the train and transmits it as train position block information to the car-side means. A digital automatic train characterized by being added to information and transmitted as digital information to the vehicle upper side means, and the vehicle upper side means using the train position block information received as position information of the own train for speed control of the train. Control device. 6. The digital automatic train control device according to claim 5, wherein the vehicle upper side means includes train position block information from the ground side means and train position block information obtained from the position detecting means of the own train. And the train position block information is matched, the train speed control is continued, and the digital automatic train control device is characterized. 7. The digital automatic train control device according to claim 5, wherein the car upper side means includes train position block information from the ground side means and train position block information obtained from the position detecting means of the own train. And if the two train position block information do not match, it is determined that there is a device failure, and the train is quickly brake-controlled, and a digital automatic train control device.