JPH03213459A - Device and method for controlling train - Google Patents

Abstract

PURPOSE:To perform further denser operation of a train by predicting a time, in which the limit speed of a subsequent train is changed to an upper grade, from the advancing state of a preceding train and deciding the limit speed pattern of the subsequent train so as to coincide with the time. CONSTITUTION:In a train control device to control operation of a train so as to allow running of only a single train in the one block section of a truck divided into a plurality of sections, a computing part 10 in an operation managing device 8 on the ground side computes a real time and an optimum speed from the length of a train, lower limit speed information, and lock section length information from a memory 11, and a train detecting signal from a train detecting device 6. The computing result is transmitted to a device on a train from an information transmitting device 9. From the advancing state of a preceding train, the limit speed of a subsequent train is determined, and a time in which the limit speed is changed to an upper grade is predicted. During running of the subsequent train to a specified spot, operation of the subsequent train is controlled based on a limit speed pattern according to which the arrival time of the subsequent train almost coincides with a predicting time.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention provides a train control device that enables high-density operation by reducing the distance between trains when a plurality of trains run on the same track. and on methods.

7- [Conventional technology] Conventionally, automatic train control devices have been used to control multiple trains running on the same track, and the trains have been operated with the distance between the trains kept above a predetermined distance for safety reasons. . Recently, in order to control trains more densely, Japanese Patent Laid-Open No. 61-2
As shown in Publication No. 69604, a speed limit signal and a deceleration information signal that is lower than the speed limit signal by a predetermined value are transmitted to the train at the same time, and under normal conditions, the deceleration information signal is used to control the deceleration of the train. A method is proposed.

[Problem to be solved by the invention]

However, the above-mentioned conventional technology does not give any consideration to so-called dynamic train control, in which the operation of the following train is controlled while closely monitoring the progress of the preceding train. For this reason, there was a limit to high-density operation with shorter intervals between trains than ever before.

An object of the present invention is to provide a train control device and method that can realize higher-density operation than ever before.

[Means to solve the problem]

In order to achieve the second object, the present invention divides the track into blocked sections of a certain finite length, and allows only a single train to be on the track in one section of the blocked section, thereby reducing the distance between trains. In a train control device that secures distance and controls train operation, there is a prediction means for predicting the time until the speed limit of the following train changes upward based on the progress status of the preceding train, and when the following train travels to a specific point. A control means is provided for calculating a speed limit pattern L whose arrival time is closest to the time predicted by the prediction means, and controlling the operation of a following train based on the speed limit pattern.

In addition, the present invention divides the track into blocked sections of a certain finite length L, and allows only a single train to be on the track in one section of the blocked section, thereby ensuring the distance between trains for train operation. In a train control device that controls the preceding train, the rear blocked section currently occupied by the preceding train is determined from the output signal from the train detection system that detects the head of the preceding train, as well as the train length and vehicle performance of the preceding train. A prediction means for predicting the time it will take for the tail of a train to completely clear, a speed limit pattern that will make the arrival time of the following train closest to the time predicted by the prediction means when it travels to a specific point L, and its limit. and control means for controlling the operation of the following train based on the speed pattern.

In addition, the present invention divides the track into blocked sections of a certain finite length L, and allows only a single train to be on the track in one section of the blocked section, thereby ensuring the distance between trains for train operation. In a train control device that controls a train, the prediction means predicts the time until the speed limit of the following train changes upward based on the progress status of the preceding train, and the prediction means predicts the arrival time when the following train travels to a specific point. The system is equipped with a control means that calculates the optimum speed of the train at a specific point closest to the predicted time from the blockage length and the vehicle performance of the train, and controls the speed of the following train based on the calculated result.

Furthermore, the present invention divides the track into blocked sections of a certain finite length L, and allows only a single train to be on the track in one section of the blocked section, thereby ensuring the distance between trains for train operation. A train control device that controls a train control device includes a prediction means for predicting the time until the speed limit of a following train changes upward based on the progress status of the preceding train, and a prediction means for predicting the time until the speed limit of the following train changes to a higher level based on the progress status of the preceding train, and the arrival time when the following train travels to a specific point. The system is equipped with a calculating means for calculating the speed limit pattern that is closest to the speed limit pattern, and a transmitting means for transmitting the speed limit pattern to the driver of the following train.

In addition, the present invention divides the track into blocked sections of a certain finite length L, and allows only a single train to be on the track in one section of the blocked section, thereby ensuring the distance between trains for train operation. This train control device is provided with means for stopping a following train at a predetermined position in the shortest possible time when a preceding train passes through a certain blocked section.

In addition, the present invention divides the track into blocked sections L of a certain finite length, and allows only a single train to be on the track in one section of the blocked section, thereby ensuring a distance 1 between trains and allowing trains to A train control device for controlling operation is provided with a means for stopping the train at a predetermined position in the shortest possible time when the speed limit pattern of the train changes upward.

In addition, the present invention divides the track into blocked sections of a certain finite length L, and allows only a single train to be on the track in one section of the blocked section, thereby ensuring the distance between trains for train operation. In a train control device that controls a train, there is provided a means for instructing the optimum speed of a train at a specific point where the time required for the train to reach the specific point is the shortest when the train travels to the specific point, and the time required for the train to reach the specific point. It was established.

In addition, the present invention divides the track into blocked sections of a certain finite length L, and allows only a single train to be on the track in one section of the blocked section, thereby ensuring the distance between trains for train operation. In a train control device that controls a train, the time required for the tail of the train to completely pass through the rear blockage section occupied by the preceding train at that time, and the arrival time for the following train to travel to a specific point are determined by the above-mentioned time. This system is equipped with means for determining the driving pattern of the following train based on the optimum speed of the train at a specific point closest to the train.

In addition, the present invention inputs the output from the train detection system that detects the head of the train, the train length and vehicle performance of the train, and the blockage length, and calculates the rear blockage section that the train is currently occupying. A means is provided to calculate the time required for the tail of the train to completely clear.

Further, the present invention is provided with means for calculating the optimum speed at a specific point where the arrival time is the shortest when the train travels to a predetermined point and stops there.

In addition, the present invention calculates the speed limit pattern of the following train from the progress status of the preceding train, predicts the time required for the following train to stop from the result, and also predicts the required time for passengers on the train or on the platform. This system is equipped with a means for providing guidance.

Furthermore, the present invention divides the track into blocked sections of a certain finite length L, and allows only a single train to be on the track in one section of the blocked section, thereby ensuring the distance between trains for train operation. In this train control method, the time required for the speed limit of the following train to change upward is predicted based on the progress status of the preceding train, and when the following train travels to a specific point, the arrival time is the closest to the predicted time. The method is to calculate a speed limit pattern L that will become closer, and to control the operation of the following train based on that speed limit pattern.

[Effect]

When a train running on the same track approaches a preceding train, it is necessary to maintain at least a minimum distance from the train to avoid a rear-end collision. This distance naturally varies depending on the speed of the train, resulting in a pattern as shown in FIG. 1, which is a roughly parabolic curve.

When a preceding train 2 moves on the same track 1 and its tail passes through a blocked section that the train has occupied up to now, the allowed running section for the following train 3 changes as shown in FIG. 2. At this point, the following train 3 accelerates and becomes able to proceed further.

Generally, during rush hours, the density of trains is high and the intervals between trains are short, so the following train 3 is often subject to speed restrictions from the preceding train 2.
tends to be delayed. The following train 3 tries to operate as close to the horizontal leading train 2 as possible.

The intervals between trains are the shortest, and the bottlenecks in terms of running intervals are mainly before and after stops.

Figure 3 illustrates the situation near the station. As shown in Figure 3(a), while the preceding train 2 is stopped at platform 5, it occupies the blocked section m including the platform, and the speed limit indicated by the signal is imposed on the blocked section n behind it. . If the following train 3 approaches in this state, it is necessary to stop at point A and wait for the signal in that section to change to a higher level until the preceding train 2 departs. If the preceding train 2 eventually departs from L and its tail leaves the blocked section m, the same figure (b
), the restriction signal for the following train 3 changes upward. From this point on, the following train 3 accelerates to L and decelerates midway to stop at the fixed station stop point and handle passengers.

Thereafter, trains arrive and depart one after another in a similar cycle.

5 The problem here is that if the preceding train 2 occupies the blockage section m and the following train 3 is subject to speed restrictions, the following train 3 will go to point A and change its rank at that point, as described above. This is a judgment as to whether it is better to wait, or whether it is more effective to decelerate in advance before the allowable speed limit and wait for a change in the upper position while proceeding at a low speed. The following train 3 is allowed to be at any point (operating state) on the diagonal line shown in Figure 4, but from this point onwards, it accelerates and decelerates again until it stops at the station's fixed position. It is desirable that the time required for this process be as short as possible. Here, we will discuss from which point the hatched line in the figure is the optimal point to start the above control. It is obvious that this point is located at least at the uppermost limit on the diagonal line, and the optimum speed v0Pt in that case is expressed by the following equation.

Here, So: Obstruction length α: Acceleration β: Deceleration Therefore, it can be said that the most efficient operation is for the following train 3 to be at point A in FIG. 4 at the time when the display changes upward.

In the above formula, the blockage length So can be applied when the starting end of the blocked section m is almost equal to the station stop point, and if the two positions are far apart, the blockage length So can be applied from the end of the blocked section of the platform section to the station stop point It is necessary to calculate the distance to the position as So.

Next, a method for estimating the time for the preceding train to exit the blocked section m will be described.

Now, considering the case where the train accelerates at a constant acceleration as shown in FIG. 5, the time t required to pass a certain point is expressed by the following equation.

Here, L: Train length (m) α: Acceleration (km/h/s) o: The initial speed of the train at that point (km/h) is also L, and the time it takes for the tail of the train to pass at the starting point. If measured, V in the above formula. =0 and L, 1b-.

Using the above calculated values, it is possible to predict the transit time from the time the train enters an arbitrary point until the train leaves the tail. In practical terms, if this is defined as the first blockage boundary departing from the platform, the time from when the train enters the blockade section 0 ahead until the tail of the train exits the blockade section m including the platform (clear It is possible to calculate the time.

However, at this time, there is no need to calculate the initial speed, and if the distance from the train's fixed position on the platform to the block boundary is known, the clearing time tc can be calculated using the following formula.

The distance to the occlusion boundary is actually the clearing time tc and the optimal speed Vopv
The calculation can be performed by a ground operation control device, and the results are transmitted to the train via a transmitting device.

〔Example〕

An embodiment of the present invention will be described below with reference to the drawings.

FIG. 6 shows the configuration of the ground equipment of the train control system of the present invention. As shown in the figure, a calculation unit 10 and a memory 11 are provided inside the operation management bag M8, and from the memory 11,
The train length, acceleration/deceleration information, and blockage section length information are input to the calculation unit 10 together with the train detection signal from the train detection device 6. The calculation unit 10 calculates the clear time and optimum speed v0Pt (hereinafter simply v0Pt) based on these information and signals.
) is calculated L, and the result is transmitted to the information transmitting device 9 L.
, and can be transmitted to an on-vehicle device, which will be described later.

The specific configuration of ground traffic management can be constructed based on a conventional signal system. That is, the conventional signal system, as shown in FIG.
Train detection device 6Q corresponds to m.

6m is provided, and the train detection signal output from the train detection device 6Q and 6m is sent to the rear speed limit signal generation bag ff! 7m
, 7n, and accordingly the speed limit signal generator 7m
, 7n are designed to instruct the trains in the relevant section, that is, the following trains, to set a speed limit that will prevent them from entering the blocked section where the preceding train is present. As shown in FIG. 8, by providing a traffic control device 8 and an information transmitting device 9 in the conventional signal system, the traffic control device 8 receives signals output from the train detection device 6Q. The clear time and V depend on the calculation method.

1. etc. can be calculated by L, and the results can be transmitted to the train via the information transmitting device 9.

On the car, receive clear time and Vopv L,
Based on this information, the train can be slowed down to achieve the optimal operating mode.
Acceleration is performed automatically. That is, as shown in FIG. 9, when the above information is input from the ground while the train is running at a point, the calculation section of the car-I calculates, for example, Continuing to coast, the time it takes to hit the speed limit pattern and decelerate along the repeat pattern to point A (route I), and the time it takes to decelerate from point A to point A at a constant deceleration (route ■). Also, immediately decelerate at the maximum deceleration from 1 to Vopv, and then predict the time (route ■) to reach point A at a constant speed (coasting) L, of which,
Control the train by selecting the driving pattern closest to the clear time.

Furthermore, even without performing complex logical operations as described above, for example, if the clearing time is large considering the train's position at that time, it is practically advantageous to forcibly reduce the speed to Vopt. It can provide a method of control.

Next, a configuration example of a specific device for realizing this on the vehicle will be described.

FIG. 10 shows an embodiment of the on-vehicle device. A signal transmitted from a speed limit signal generator on the ground is received by a speed limit receiver 13 through an on-vehicle antenna 12a. Also, clear time and V. , are received by the clear time receiving device 14 through the on-vehicle antenna 12. The speed limit information is input to the checking section 18 and compared with the actual speed, and if the actual speed is greater than the speed limit, a brake signal is automatically output to the brake device 17. On the other hand, the output from the clear time receiving device] 4 is sent to the on-board calculation unit 1.
9, and depending on the calculation result, an acceleration or braking command is sent to the drive device 16 or the brake device 17 as appropriate.
Output to.

FIG. 11 shows the configuration around the on-board calculation section. As input information to the on-board calculation unit 19, the clear time receiving device 14
Clear time and v0Pt information given from the train speed generator 15, train speed given from the speed generator 15, and position information of the own train stored in the on-board memory 20, updated and calculated sequentially. These are calculated by the second calculation unit 19,
An acceleration command and a brake command are obtained by calculation using the algorithm described above.

Although the above embodiments have been described with a focus on automatically operating the train, the present optimal control method can also be realized by manual operation. The embodiment will be explained using FIG. 12. Obtaining the necessary information using the speed limit receiving device 13 and the clear time receiving device 14 is the same as in the case of Figure]-0, but regarding how to drive,
Display device 2]. While viewing this display, the driver operates the main controller 22 as appropriate to maintain the train in the optimum operating condition.

According to this embodiment, the driver can know the time until the display is up and the approximate target driving speed from the display on the display device 21, and is completely unpredictable as seen in the conventional system. This makes it possible to perform much more rational operation than in the case of conventional trains, and enables efficient train control.

When operating manually, the driver must use V. , t and clear time, it is sufficient to recognize this information, and it is not necessarily necessary to display this information on the driving script. That is, for example, as shown in FIG. 13, a sufficiently large ground display device 2 is placed beside the orbit.
3a, 23b, this ground display device! 23a,
This can be replaced by inputting and displaying display information from the traffic management device 8 on the display 23b.

According to this embodiment, there is no need for transmission equipment between the ground and the vehicle, and there is an advantage that the device is simplified.

Furthermore, as described above, according to the present invention, the clearing time can be predicted, and if it is assumed that the optimal speed point will be reached at that time, the time from the optimal speed point to the station stop can be calculated in advance. It is possible to relatively accurately determine the time required for the following train to stop at the next station. That is, as shown in FIG. 14, the clear time receiving device 1
4, clear time and ■. If Pt is known, the time T until arrival at the station is given by the following formula.

β: Deceleration In accordance with the above equation, the arrival time calculation unit 24 calculates L and displays the calculated time on the display unit 25, thereby making it possible to provide more detailed services to passengers.

It is also possible to inform passengers waiting for the following train on the platform of the estimated arrival time, which is effective in improving service. However, in this case, a device is required to transmit the predicted stop time at the next station on the train to the ground.

Note that the present invention is applicable when there are no trains in consecutive blocked sections, that is, when there is one or more blocked sections without trains,
It can be applied even when there are trains intermittently.

〔Effect of the invention〕

As explained above, according to the present invention, it is possible to know the time until the speed limit of the following train changes upward from the progress status of the preceding train, and further adjust the speed limit of the following train to match this time. Since the speed pattern is determined, dynamic train control can be performed, making it possible to operate at a higher density than before.

[Brief explanation of drawings]

1 to 5 are explanatory diagrams explaining the present invention in detail, FIG. 6 is a ground side configuration diagram of the train control device of the present invention, and FIG. 7 is a ground side system configuration of the conventional train control device. 8 is a ground side system configuration diagram of the train control device of the present invention, and FIG. 9 is an explanatory diagram illustrating the operation of the vehicle.
10 and 11 are vehicle side configuration diagrams of the train control device of the present invention, FIGS. 12 and 13 are configuration diagrams showing a modification of FIG. 1.0, and FIG. FIG. 2 is a configuration diagram of a train guide device that guides the required time. 1...Track, 2...Preceding train, 3...Following train, 4.
4Q, 4m, 4n - Blocked section, 5... Plan 1 - Platform, 6, 6Q, 6m - Train detection device, 7m. 7n...Speed limit signal generation device, 8...Operation management device, 9...Information transmitting device, 1-0...Computation unit, ]1.
・Memory, 12a, 12b... Vehicle antenna, 13・
・Speed limit receiving device, 14... Clear time receiving device, 15・Speed generator, ]-6... Drive device, 17... Brake device, 18... Verification unit, 19... On-vehicle calculation unit, 20... On-vehicle memory, 21... On-vehicle display device, 22
・Main controller, 23a, 23b...Ground display device, 24
... Arrival time calculation section, 25... Display section. Fig. 13 Fig. 4 Fig. 23a, 23b Stack display device 24 --- One table of display section 25 --- One table

Claims (1)

[Claims] 1. By dividing the track into blocked sections of a certain finite length and allowing only a single train to be on the track in one section of the blocked section, distances between trains can be secured and trains can be In a train control device that controls the operation of a train, a prediction means predicts the time until the speed limit of a following train changes upward based on the progress status of the preceding train, and a prediction means that predicts the time until the speed limit of the following train changes to a higher level when the following train travels to a specific point. A train control device comprising: a control means for calculating a speed limit pattern closest to the time predicted by the prediction means, and controlling the operation of a following train based on the speed limit pattern. 2. A train that controls train operation by ensuring distance between trains by dividing the track into blocked sections of a certain finite length and allowing only a single train to be on the track in one section of the blocked section. In the control device, based on the output signal from the train detection system that detects the head of the preceding train, as well as the train length and vehicle performance of the preceding train, the control device determines whether the rear of the train has completely occupied the rear blocked section currently occupied by the preceding train. A prediction means for predicting the time it will take for the following train to reach a specific point, and a speed limit pattern that will make the arrival time closest to the time predicted by the prediction means when the following train travels to a specific point, A train control device comprising: control means for controlling train operation. 3. In the train control device according to claim 2, the train length is L.
, train acceleration is α, train speed at the time of train detection v_0
The train control device is characterized in that the prediction means calculates the predicted time t from ▲a mathematical formula, a chemical formula, a table, etc.▼. 4. By dividing the track into blocked sections of a certain finite length and allowing only a single train to be on the track in one section of the blocked section, the distance between trains is ensured and train operation is controlled. The train control device includes a prediction means for predicting the time until the speed limit of the following train changes to a higher level based on the progress status of the preceding train, and a prediction means that predicts the arrival time when the following train travels to a specific point. A train control device comprising: a control means for calculating the optimum speed of the train at a specific point closest to the time from the blockage length and the vehicle performance of the train, and controlling the speed of the following train based on the result. . 5. In the train control device according to claim 4, the blockage length is S.
_0, the acceleration of the train is α, and the deceleration of the train is β. 6. A train that controls train operation by ensuring distance between trains by dividing the track into blocked sections of a certain finite length and allowing only a single train to be on the track in one section of the blocked section. In the control device, a prediction means for predicting the time until the speed limit of the following train changes upward based on the progress status of the preceding train, and a prediction means for predicting the time until the speed limit of the following train changes to a higher level from the progress status of the preceding train, and when the following train travels to a specific point, the arrival time is the closest to the predicted time. A train control device comprising: a calculation means for calculating a speed limit pattern; and a transmission means for transmitting the speed limit pattern to a driver of a following train. 7. The train control device according to claim 6, wherein the transmission means displays the speed limit pattern near the driver's cab of the following train. 8. The train control device according to claim 6, wherein the transmission means displays the speed limit pattern on a display provided beside the track. 9. A train that controls train operation by dividing the track into blocked sections of a certain finite length and allowing only a single train to be on the track in one section of the blocked section, ensuring distance between trains. A train control device characterized in that the control device is provided with means for stopping a following train at a predetermined position in the shortest possible time when a preceding train passes through a certain blocked section. 10. A train that controls train operation by dividing the track into blocked sections of a certain finite length and allowing only a single train to be on the track in one section of the blocked section, ensuring distance between trains. 1. A train control device, characterized in that the control device is provided with means for stopping the train at a predetermined position in the shortest possible time when the speed limit pattern of the train changes upward. 11. A train that controls train operation by dividing the track into blocked sections of a certain finite length and allowing only a single train to be on the track in one section of the blocked section, ensuring distance between trains. The control device is provided with means for instructing the optimum speed of the train at a specific point that will take the shortest time to reach the specific point when the train travels to the specific point, and the time required for the train to reach the specific point. Characteristic train control device. 12. A train that controls train operation by ensuring distance between trains by dividing the track into blocked sections of a certain finite length and allowing only a single train to be on the track in one section of the blocked section. The control device determines the time it takes for the tail of the train to completely pass through the rear blockage section currently occupied by the preceding train, and the arrival time of the following train when it travels to a specific point, which is closest to the above time. A train control device comprising means for determining a driving pattern of a following train based on the optimum speed of the train at a specific point. 13. Input the output from the train detection system that detects the head of the train, the train length and vehicle performance of the train, and the blockage length,
A clear time calculation device is provided with a means for calculating the time required for the rear of a train to completely clear a rear blockage section currently occupied by the train. 14. An optimal speed calculation device provided with a means for calculating the optimal speed at a specific point where the arrival time is the shortest when a train travels to a predetermined point and stops. 15. Calculates the speed limit pattern of the following train from the progress status of the preceding train, predicts the time required for the following train to stop from the result, and informs passengers on the train or on the platform of the required time. A train guidance device equipped with means. 16. A train that controls train operation by dividing the track into blocked sections of a certain finite length and allowing only a single train to be on the track in one section of the blocked section, ensuring distance between trains. In the control method, the time required for the speed limit of the following train to change to a higher level is predicted based on the progress status of the preceding train, and the speed limit at which the following train reaches a specific point is closest to the predicted time. A train control method characterized by calculating a pattern and controlling the operation of a following train based on the speed limit pattern.