JP2816390B2 - Train operation curve creation system - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a train operation curve creation system, and more specifically, to a train operation in a railway.
The present invention relates to a train operation curve creation system that creates and outputs a drawing on which a train operation curve and an hour-minute curve representing an appropriate speed distribution are satisfied after satisfying a speed constraint on a track.

[0002]

2. Description of the Related Art When operating a train on a railway, it is desirable to operate between train stations in the shortest time in order to improve transportation efficiency. To this end, it is basically necessary to increase the maximum speed of the train and to increase the acceleration / deceleration. However, when a train travels, the maximum speed is determined by law, and the speed limit is determined from the aspect of safety and the performance of the vehicle according to the curve and gradient existing on the track. Also, the speed limit is determined from the relationship with the braking distance depending on the signal interval. On the other hand, in consideration of the ride comfort of passengers, it is desirable to avoid sudden acceleration and sudden deceleration.

[0003] Under such speed limit conditions, it is generally difficult to find a speed distribution for operating trains having various performances between stations in the shortest time. The theory for obtaining such a speed distribution is described in "Driving Theory" (published by Japan Railway Driving Association, published on March 25, 1992).

Conventionally, the following curves are used as a chart showing the above-mentioned speed distribution. (A) Train operation curve: A train speed curve and a time-minute curve of a train traveling between a plurality of stations are displayed together. (B) Train speed curve: A curve displaying the position and speed of a train traveling between a plurality of stations. (C) Hour-minute curve: A curve displaying the position of a train traveling between a plurality of stations and the time required from the departure station.

FIG. 1 shows an example of a train operation curve. The train operation curve is represented by a graph having speed and time on the vertical axis and distance on the horizontal axis, and such a graph is called a train operation curve diagram. Specifically, a speed curve and a time-minute curve from when the train departs from station A to when it arrives at station B are drawn. When the vehicle departs from A and reaches a certain speed, the vehicle shifts to the coasting state and slowly decelerates, shifts to the braking state at a predetermined position before the station B, decelerates, and finally stops at the station B.

Conventionally, a train speed curve as described above is drawn on a sheet of paper from a train speed calculated by an operator using a ruler or the like, and the required time at each point is calculated based on the train speed curve. And then plotted the hour-minute curve.

[0007]

Since the conventional method of creating a train operation curve is performed manually as described above, it requires a large amount of experience and a great deal of work time, and is difficult for an inexperienced worker. Met. In addition, it took a great deal of time and effort to create forms for outputting those curves and related information from the created train operation curves.

[0008] The present invention has been made in view of such circumstances, and automatically creates a train operation curve and a train speed curve, and enables an operator to interactively modify the train speed curve. It is another object of the present invention to provide a train operation curve creation system that outputs a created curve and related information as a form.

[0009]

A train operation curve creation system according to the present invention comprises a train running curve on at least two stations.
An operation that represents the relationship between train speed and position when a car is traveling
Hour-minute tune showing the relationship between the turn curve and the train position and the required time
In the train operation curve creation system for creating a line,
Train length and actual operation for the maximum speed set on the track
Limit to find the logical limit speed considering the speed margin
Speed creation means and coasting section confirmation to secure an arbitrary coasting section
And by calculating acceleration from the departure station.
A forward train speed curve creating means for finding a correct train speed,
Start reverse search from arrival station side, speed reaches logical speed limit
Or the position corresponding to the change point of the logical speed limit is reached.
At the designated time from the point of interruption to the departure station.
Change point of ground condition or logical speed limit was searched and searched
Reverse lookup to restart reverse lookup based on change point or ground conditions
Automatic train speed curve
Means for creating a train speed curve, and the train speed curve
Display that displays the train speed curve created by the creation means
By means of interactive operation with the means, the display means
Manually modify the train speed curve displayed to correct the train speed curve
Corrected means and created by the train speed curve creating means
Calculate the train operation time based on the train speed curve,
Time and minute curve creation means for creating curves, and train speeds created
Output information on degree curve and hour / minute curve as a form
And the like.

[0010]

[Action] In the present invention, the ground condition input by the operator, is created train speed curve automatically based on the logic speed limit, it is performed automatically calculated based on the train speed curve created An hour-minute curve is created. Then, the created train speed curve, hour / minute curve, and information related thereto are output as a form.

In the means for automatically creating a train speed curve, an appropriate logical speed limit curve in consideration of the train length is automatically created based on the actual speed limit input by the operator, and based on that, Each of the logical speed limit curves
A reverse train speed curve and a forward train speed curve are automatically created while automatically searching for a change point and ground conditions . Further, a train speed curve is created by automatically securing and connecting an appropriate coasting section to these train speed curves.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the drawings showing the embodiments.

FIG. 2 is a block diagram showing a hardware configuration of an embodiment of a train operation curve creation system according to the present invention. In FIG. 2, reference numeral 1 denotes a keyboard, and 2 denotes a mouse. Reference numeral 10 denotes a computer, which includes an input circuit 3 for converting information input from the keyboard 1 and the mouse 2 into information that can be processed by a CPU 5 described later, and a memory 4 and a CPU 5. Note that the memory 4 stores a program constituting the train operation curve creation system of the present invention.

Reference numeral 6 denotes a storage device for storing data, 7 denotes a CRT display, 8 denotes a printer, 9
Denotes plotters, respectively.

The train operation curve creation system of the present invention is mainly based on a program executed by the above-described hardware configuration. Next, the actual processing procedure is described with reference to FIGS. I will explain. FIG. 3 is a flowchart of the entire train operation curve creation system stored in the memory 4 of the computer 10, and FIG. 4 is a flowchart of the train speed curve automatic creation function therein.

First, when the train operation curve creation system of the present invention is started, processing conditions are set (step S).
1). The processing conditions set here are two types: vehicle conditions and ground conditions. Table 1 shows an example of vehicle conditions, and Table 2 shows an example of ground conditions. Note that the vehicle conditions shown in Table 1 are conditions for electric trains, and some different conditions are set for locomotive towed trains, diesel trains, and the like.

The setting of the processing conditions is performed by the operator using the keyboard 1 and the mouse 2 and the input circuit 3
U5 reads. The set conditions can be stored in the storage device 6.

[0018]

[Table 1]

Next, when the train speed curve automatic creation function is selected, the CPU 5 reads a program stored in the memory 4 and creates a train speed curve (step S2). The specific procedure for creating the train speed curve in step S2 will be described later. Next, when the train speed curve manual correction function is selected, manual correction by the operator becomes possible (step S3). The function of the manual correction is to display the train speed curve created in the above step S2 on the screen of the CRT display 7, and to operate the interactively using the keyboard 1 and the mouse 2 while viewing this screen for correction. I do.

This manual correction is performed until the operator determines that the train speed curve has been completed (step S5). During the creation of the train speed curve, the hour / minute curve automatic creation function is automatically activated, and an hour / minute curve is created from the train speed curve (step S4). The train speed curve and the hour / minute curve can be simultaneously displayed on the CRT display 7, and both of them are referred to as a train operation curve.

The train operation curve data completed as described above can be stored in the storage device 6, and if necessary, the plotter 9 can store the train speed curve 91 or the time / minute curve 92, or the train combining both. It is possible to selectively output the operation curve. In addition, the following information (A) and (B) can be output to the printer 8 as a form 93 by calculation based on the train operation curve 91.

(A) Inter-station driving time table: Table showing the time required between stations for each train type. (B) Powering electric power table: The electric power required between stations is tabulated for each train type.

Next, the processing procedure of the train speed curve automatic creation function in step S2 will be described. First, a logical speed limit curve automatic creation function is activated to create a logical speed limit curve (step S11). An example of the logical speed limit is shown in the graph of FIG. In the graph of FIG. 5, the vertical axis represents the speed, and the horizontal axis represents the distance between stations. The logical speed limit curve 11 represents the maximum allowable speed between stations 12 between the departure station A and the arrival station B among the processing conditions set in step S1.
And a continuous curve connecting the smaller of the several speed limits 13 existing between the stations.

However, the logical speed limit curve 11 indicates that both stations A and B
When passing through a curve or a slow section due to construction, the speed limit is extended toward the arrival station by a distance 14 corresponding to the train length so that the speed limit is not exceeded even at the end of the train. Furthermore, a logical speed limit curve 11 is set by subtracting a certain speed range 15 from the speed limit as a margin when actually operating the train.

Next, a reverse pulling speed curve automatic creation function is activated to create a reverse pulling speed curve (step S12). FIG.
An example of the reverse pulling speed curve is shown in the graph. In the graph of FIG. 6, the vertical axis represents the speed, and the horizontal axis represents the distance between stations. The creation of the reverse speed curve is a process of creating a braking or coasting speed curve from the arrival station B in the direction opposite to the train traveling direction. Note that there are two types of braking: stop braking and limited braking.

The reverse speed curve starts from the stop point 16 at the head of the train at the arrival station B and starts reverse braking with stop braking, and stops at the point 17 where the speed reaches the logical speed limit 11. This point
From 17 toward the departure station A, a search is made for the departure station side of the recess with a downward slope or a logical speed limit.

If there is a concave portion having a logical speed limit, the reverse pulling is started by limiting braking from a point 18 on the departure station A side, and is stopped at a point 19 where the speed reaches the logical speed limit 11. If this point is a downhill slope, reverse pulling is resumed by coasting from this point. If there is a downhill slope, the reverse is started by coasting from point 20 on the arrival station B side of the downhill slope, and the speed is reduced to the logical speed limit 11
Departure station A at the point of reaching or at the depression with a logical speed limit of 11
Stop at side point 21. In this case, a speed curve is created in a forward direction by coasting from a point 22 on the departure station A side of the concave portion of the logical speed limit 11 and connected at a point 23 intersecting with the reverse braking curve. The part on the departure station A side is deleted.

In addition, the reverse pulling is started by the limited braking from the point 22 on the departure station A side of the concave portion of the logical limited speed 11. If the position reaches the stop position 24 at the head of the train at the departure station A during the reverse search, the reverse search ends. Table 3 shows the procedure for creating the reverse pulling speed curve.

[0029]

[Table 2]

Next, a forward pulling speed curve automatic creation function is activated to create a forward pulling speed curve (step S13). An example of a forward speed curve is shown in the graph of FIG. FIG.
In the graph, the vertical axis represents the speed, and the horizontal axis represents the distance between the stations. Creating a forward speed curve refers to a process of creating a powering or coasting speed curve from the departure station A in the same direction as the train travel direction. Since powering is determined according to the pulling force of the vehicle, there are as many types as the number of notches.

The forward speed curve starts from the stop position 25 at the head of the train at the departure station A and starts with power running.
The notch is switched when reaching the point 26 on the arrival station B side of the concave portion, and the process is continued. When the speed reaches the logical speed limit 11, a forward search is performed by coasting from the point 27. If the speed becomes lower than the logical speed limit 11 by a fixed speed during the forward pulling by coasting, the forward pulling at that point 28 is interrupted, and the forward pulling is resumed by power running. Then, when the forward pulling speed curve crosses the reverse pulling speed curve, it is connected to the reverse pulling speed curve at the point 30. After this, follow the reverse speed curve in the direction of the arrival station B,
Find the end point. If the end point is the arrival station B, the creation of the forward speed curve is terminated. If the end point is not the arrival station B, the end point
The ordering is restarted by coasting from 29. Table 4 shows the procedure for creating the forward speed curve.

[0032]

[Table 3]

Next, the coasting section automatic securing function is activated to finish the train speed curve (step S14). The finish of the train speed curve is performed when there is no coasting section when transitioning from the powering state of the forward speed curve to the braking state of the reverse speed curve, or when the coasting section exceeding the specified distance is not secured, This is processing to secure a specified distance.

First, a point at which powering ends is searched for by following the train speed curve in order from the departure station. If the coasting section is not secured for the designated distance, the vehicle returns to the departure station by a certain distance and creates a forward speed curve by coasting until the intersection with the reverse speed curve. This process is repeated until the coasting section is secured.

In the above embodiment, the processing conditions are as follows:
As shown in Table 1, it has been described that the wheel diameter, the gear ratio, the current limiting value, the starting average current, the BrM conversion table, and the traffic signal are input, but these values may be used without being used. Since it can be calculated, it can be similarly applied even when there is no input.

In the above-described embodiment, the processing conditions are as shown in Table 1.
As described above, the relationship between the voltage and the speed-current is input and the powering electric energy table is output. However, the present invention can be similarly applied without these processes.

[0037]

As described in detail above, according to the present invention,
By inputting the processing conditions, train operation curves and forms can be obtained easily and in a short time. Further, in creating the train speed curve, the train operation curve is created without requiring the experience of the operator.

Furthermore, the train speed curve once created can be modified interactively, and the intention of the operator can be easily reflected on the train speed curve. Further, since the time / minute curve is automatically obtained only by creating the train speed curve, the operator can evaluate the train speed curve by using both the train speed curve and the time / minute curve.

Further, the train length, the margin of speed, etc. are taken into consideration.
Set the reverse train speed curve and forward train speed curve properly.
Since the train speed curve is created by the combination, a train operation curve suitable for actual train operation can be obtained.
Also, the change point of the logical speed limit and the ground conditions are automatically detected.
To create a reverse train speed curve,
In addition, the coasting section specified at the time of creating the train operation curve is automatically secured, so that passengers do not feel uncomfortable and the train operation efficiency is improved.

[Brief description of the drawings]

FIG. 1 is a graph showing an example of a train operation curve.

FIG. 2 is a block diagram illustrating a configuration of hardware on which a train operation curve creation system according to an embodiment of the present invention is executed.

FIG. 3 is a flowchart showing a train operation curve creation procedure of one embodiment of the train operation curve creation system of the present invention.

FIG. 4 is a flowchart showing a train speed curve automatic creation procedure of an embodiment of the train operation curve creation system of the present invention.

FIG. 5 is a graph showing an example of a logical speed limit created by one embodiment of the train operation curve creation system of the present invention.

FIG. 6 is a graph showing an example of a reverse pulling speed curve created by one embodiment of the train operation curve creating system of the present invention.

FIG. 7 is a graph showing an example of a forward speed curve created by one embodiment of the train operation curve creation system of the present invention.

[Explanation of symbols]

 4 Memory (Program) 5 CPU 6 Storage 7 CRT 8 Printer 9 Plotter 10 Computer

Claims (1)

(57) [Claims] 1. An operation curve representing a relationship between a train speed and a position and a time-minute curve representing a relationship between a train position and a required time when the train travels on a track between at least two stations. in a train operation curve creation system, the logical limit speed creation means for obtaining a logical limit speed in consideration of the speed margin of the train length and the time of actual operation against the maximum speed is set on the track, arbitrary coasting and coasting section secure means to ensure the interval, to calculate the acceleration from the departure station side
A means for creating a forward train speed curve to obtain an appropriate train speed
And start reverse search from the arrival station side , and the speed is the logical speed limit
Or the position corresponding to the change point of the logical speed limit
Stop every time you reach it, and move from this interruption point to the departure station side.
Search for changes in fixed ground conditions or logical speed limits and search
Restart reverse lookup based on changed point or ground conditions
A train speed curve creating means for automatically creating a train speed curve, comprising: a reverse train speed curve creating means; a display means for displaying a train speed curve created by the train speed curve creating means; By operating, the train speed curve manual correction means to correct the train speed curve displayed on the display means, calculate the train operating time based on the train speed curve created by the train speed curve creation means, A train operation curve creation system, comprising: an hour-minute curve creation means for creating an hour-minute curve; and a form class output means for outputting information on the created train speed curve and the hour-minute curve as a form.