JPH05278615A - Operation curve drawing device - Google Patents

Abstract

PURPOSE:To facilitate the formation of an operation curve by providing such a constitution as extracting the basic data from a data memory means at the time of instructing a coordinate point on an operation curve chart, and displaying, on the operation curve chart of a display means, a speed curve according to the basic data and accelerating/decelerating condition. CONSTITUTION:A drawing device has a data memory means for storing railway lines and basic data such as train performance data, haulage capacity data, geographic data, and facility data. The device also has a display means consisting of CRT to display menus such as basic data input and output, formation of operation performance and formation of operation curve on its display screen. When a desired coordinate point on an operation curve chart, when the operation curve chart is displayed, is selected by an instructing means such as a mouse or keyboard, and the coordinate point is instructed together with the basic data and accelerating/decelerating condition from the coordinate point, the basic data is extracted from the data memory means, and a speed curve according to the basic data and the accelerating/decelerating condition is displayed under the control by a display control means.

Description

Detailed Description of the Invention

[0001]

[Field of Industrial Application] The present invention establishes a norm for calculation of running time between stations and smooth train driving operation in consideration of various factors such as economy and passenger comfort in railway transportation business. TECHNICAL FIELD The present invention relates to a device for drawing a driving curve diagram used for doing so, and particularly to drawing a speed curve as an element of the driving curve diagram.

[0002]

2. Description of the Related Art Conventionally, a speed curve as an element of an operation curve diagram is created as follows. First, the output of the vehicle,
A driving performance curve is created by a physical formula derived from basic data such as acceleration / deceleration and running resistance.

Next, along the distance axis of the operation curve chart sheet with the vertical axis as the speed and time axis and the horizontal axis as the distance axis, the points between the target base points (for example, between the A station and the B station) Enter the track conditions etc. The track condition is, for example, a gradient, a curvature of a curve, a position of a point, or the like.

On the operating curve diagram sheet, a subdivision curve selected from the above operating performance curves is compared with the operating conditions such as the notch step, speed limit, etc. on the line condition and the like written on the distance axis. Post to. By repeating this operation, a speed curve representing the correlation between the distance from the starting point A station and the train speed at the distance point is drawn up to the ending point B station as a continuation of the subdivision curve. If the speed curve continues from the starting point A station to the ending point B station, the speed curve between A station and B station is completed.

Further, after the speed curve is completed, the time curve is drawn by plotting the correlation between the distance from the station A and the required time to reach the point of the distance based on the speed curve.
Thus, the required time between the A station and the B station can be obtained. The speed curve and the time curve thus obtained are drawn on one sheet of operation curve chart in common with the distance axis to form an operation curve chart. A set of a speed curve and a time curve in which the distance axis is drawn in common is an operation curve.

[0006]

However, since all the above-mentioned operation curve creation work is performed manually by a skilled worker, (a) work is inefficient, and (b) a large number of operation curves are used. It takes a lot of time and manpower to create and compare, and (c) a lot of time and manpower is required to convert the data expressed as a running curve into data for creating charts and forms in other formats. There is a problem that it is necessary.

Therefore, the present invention has an object to solve the above-mentioned problems, and it is possible to efficiently carry out the operation curve preparation work, and it is possible to prepare and compare a large number of operation curves with a small amount of time and manpower. Another object of the present invention is to provide a driving curve drawing device capable of converting data expressed as a driving curve into data for creating charts and forms in other formats without requiring time and labor.

[0008]

In order to achieve such an object, the present invention has the following constitution as a means for solving the problem. That is, as illustrated in FIG. 1, the driving curve drawing apparatus of the present invention includes a data storage unit that stores basic data regarding a railway line and a vehicle, a display unit that displays a driving curve diagram, and a desired one on the driving curve diagram. Select the coordinate point of
Instructing means for instructing the coordinate point together with the basic data and the acceleration / deceleration condition from the coordinate point, and extracting the basic data from the data storing means in response to the instruction from the instructing means, Display control means for displaying a speed curve according to acceleration / deceleration conditions on the operation curve diagram of the display means is provided.

[0009]

In the operation curve drawing device having the above structure,
The instruction means selects a desired coordinate point on the operation curve diagram displayed by the display means. The instructing unit also instructs the display control unit, together with the selected coordinate point, the basic data stored in the data storage unit and the acceleration / deceleration condition from the coordinate point.

The display control means extracts the basic data according to the instruction from the data storage means, and displays the basic data and the speed curve according to the instructed acceleration / deceleration condition on the operation curve diagram of the display means. Let

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of the operation curve drawing apparatus of the present invention will be described below. As shown in FIG. 2, the operation curve drawing apparatus of this embodiment includes an electronic control unit 1, a mouse 3,
It is composed of a keyboard 5, a floppy disk driver 7, an external storage device 9, a CRT 11, and a printer 13.

The electronic control unit 1 is a well-known CPU 1a, R
The OM 1b, the RAM 1c, and the input / output circuit 1d are connected by a bidirectional bus 1e, which is configured as an arithmetic logic operation circuit. In the electronic control unit 1, via the input / output circuit 1d,
A mouse 3, a keyboard 5, a floppy disk driver 7, an external storage device 9, a CRT 11, and a printer 13 are connected. A program for performing various processes according to a predetermined procedure is stored in the ROM 1b in advance. The external storage device 9 stores basic data including train performance data, traction constant data as a part of the train performance data, geographical data, facility data, and the like.

The train performance data includes vehicle types representing the types of electric locomotives, diesel locomotives, trains, and diesel vehicles, and tensile force characteristics (VT) representing the relationship between the tensile force and speed for each notch of the motor vehicle. Curve), a value of a unit composed of a plurality of electric motors or engines, an adhesion coefficient that is a friction coefficient between a locomotive wheel and a rail, a weight of the locomotive, and a data representing the running resistance of the locomotive by an approximate expression,
Includes traction constant data, etc.

The traction constant data indicates how many trains of the motor vehicle are used to form a train as a whole, and a plurality of trains (maximum 10) are held for one train of the motor vehicle. It forms part of the performance data. The traction constant data includes the running resistance of the entire train formation, the number of units of the power train that is the basis for calculating the tensile force of the entire train formation, the traction weight that expresses the weight of the passenger car or freight car towed by the locomotive, and the train. Alternatively, it includes the number and weight of diesel vehicles, the total length of the train, the curve resistance indicating the running resistance in the curve portion, and the like.

Geographical data is data relating to geographical conditions and includes data such as the slope of a track and the curvature of a curve. The facility data is data on the track and various facilities attached to it, and includes data on stations, signals, railroad crossings, points, and the like. Next, the operation of this device will be described.

The CPU 1a of the electronic control unit 1 is a mouse 3
Alternatively, upon receiving a start instruction input via the keyboard 5, the processing of the main routine shown in FIG. 3 is executed. The process of the main routine is started by selecting a function. Specifically, a menu is displayed on the display screen 15 to wait for function selection (step 100). The selected function is
Basic data input, basic data output, operation performance curve creation,
There are operation curve creation, operation curve output and time interval curve output. When any function is selected, the process proceeds to the corresponding processing step.

Each function will be described below. When the basic data input is selected, the basic data stored in the external storage device 9 is corrected or added. The data type to be corrected or added from the basic data is selected and designated via the keyboard 5 or the mouse 3 and the data is input (step 200). The CPU 1a is an external storage device 9
The input data is stored in the corresponding data storage portion of the external storage device 9 (step 210).

When the driving performance curve is selected, reading of basic data is executed (step 300). continue,
An instruction of a driving performance curve to be created is input via the keyboard 5 or the mouse 3 (step 310). The driving performance curve is a curve obtained by substituting numerical values based on basic data into various physical formulas, and there are three types of curves, a load curve, an acceleration force curve, and a speed-distance curve.

The load curve is a curve showing the power performance of the electric locomotive and the diesel locomotive, and is a curve showing the towable weight at a certain speed for each gradient and notch. The acceleration force curve is a curve representing the power performance of electric trains and diesel vehicles, and is a curve showing the acceleration force per unit weight at a certain speed for each gradient and notch.

The speed-distance curve is a curve showing the running state of the train by notch and slope, and is a curve showing changes in the travel distance and speed when the train travels on a slope with a notch. is there. A curve is created in accordance with the curve type instruction (step 320).

The above curves are calculated by the physical formulas described below. (1) The load curve is created by obtaining the traction load W (t) at the speed V (km / h). The calculation formula is

[0022]

[Equation 1]

It is Where T: locomotive tensile force (kg) W ₁ : locomotive weight (t) r: specific starting resistance or specific running resistance of a passenger car (kg /
t) r ₁ : Specific starting resistance or specific running resistance of the locomotive (kg /
t) r _g: represents a specific grade resistance (kg / t) = slope (0/00).

These numerical values are used by selecting predetermined values from the train performance data and the traction constant data using the locomotive type (electric or diesel), speed, number of units, notches, etc. as parameters. A program for selecting a numerical value is stored in the ROM 1b in advance, and the CPU 1
For a, a numerical value is selected from the above data by this program, and a load curve is created by the equation (1).

(2) Acceleration force curve shows velocity V (km / h)
It is created by obtaining the acceleration force f (kg / t) at. The calculation formula is

[0026]

[Equation 2]

[0027] Here, T: motor vehicle tensile force (kg) R: train starting resistance or running resistance (kg) W _a of: representing the train total weight (t), including weight due to ride personnel.

Predetermined values are selected from the train performance data and the traction constant data using these parameters as parameters such as the type of motor vehicle (train or diesel vehicle), speed, number of units, train weight, number of passengers, boarding efficiency, etc. used. A program for selecting a numerical value is stored in advance in the ROM 1b, and the CPU 1a selects a numerical value from the above data by this program and creates an acceleration force curve by the formula (2).

(3) The velocity-distance curve is created by obtaining the velocity V (km / h) and the distance S (m) at time t (seconds). The calculation formula is

[0030]

[Equation 3]

[0031]

[Equation 4]

It is Here, T: motor vehicle tension (kg) R: train starting resistance or running resistance (kg) G of: grade resistance (kg) W _a: train total weight including the weight by riding personnel (t) gamma: Inertia factor Represents.

These numerical values are for the type of motor vehicle (electric locomotive, diesel locomotive, train or diesel vehicle),
A predetermined value is selected and used from the train performance data and the traction constant data with parameters such as speed, number of units, locomotive weight, train weight, number of passengers, and boarding efficiency. A program for selecting a numerical value is stored in advance in the ROM 1b, and the CPU 1a selects a numerical value from the above data by this program and creates a speed-distance curve by the formulas (3) and (4).

When one of the above-mentioned driving performance curves is created, the data is stored in the external storage device 9 (step 330). Examples of each curve are shown in FIGS. Although not shown, each curve diagram also displays basic data such as the type and model of the power vehicle that was the object of the curve creation, the train set, the train weight, the slope, and the notch.

In addition, in creating the operation performance curve, in addition to creating each curve as described above, it is also possible to instruct and execute all of the above three curves. After the basic data described above is input to the external storage device 9 and the operation performance curve is created, the operation curve is created based on these. Therefore, these need to be executed before the operation curve is created. However,
Once executed, unless data is added or modified,
Recreate-No memory required.

The case where the operating curve is selected after the basic data is input to the external storage device 9 and the operating performance curve is created will be described with reference to the operating curve creation routine shown in FIG. When the driving curve is selected, the routine proceeds to a driving curve creation routine (step 400). In this routine, the operation curve is automatically created and / or modified.

In the operation curve creation routine, first, in the function selection step, automatic creation of the operation curve or modification of the operation curve is selected (step 410). When automatic generation of a driving curve is selected, an instruction is given to a route and a section, and a train set to be a target of the driving curve generation (step 420). This instruction is given via the keyboard 5 or the mouse 3. For example, the Tokaido Main Line descends as the route and Obu-Kanayama as the section. Train formation is specified and instructed by the type of motor vehicle, formation, number of units, and the like. For example, motor vehicle type 221, formation 2M2T, number of units 1
Etc.

When the route, section and train formation are instructed, the basic data and the operation curve data corresponding to them are read from the external storage device 9 (step 430).
When the reading of the data is completed, an operation curve is automatically created based on the data (step 440).

In creating the operation curve, power running, coasting, and deceleration at each notch are appropriately selected within the range of various restrictions and conditions based on geographical data, and the relationship between distance and speed and distance and time are set. And the required time between stations is calculated. Examples of various restrictions and conditions include downhill restriction, curve restriction, turnout restriction, special restriction, traffic light restriction, maximum speed, and the like. The speed limit value set by these restrictions and conditions becomes the allowable speed under the restrictions and conditions.

Here, each exemplified restriction will be described. The downhill slope limit sets a speed limit when traveling on a downhill slope, which is read as basic data from the external storage device 9 and a speed limit value is set by the downhill slope limit table stored in the RAM 1c. The downgrade limit table is composed of downgrade data in which the actual amount of grade between stations is corrected, downgrade limit ranks set by train performance and line section, and speed limit values corresponding to them. The downward slope restriction table is stored in the RAM 1c as a table map, and when a downward slope restriction rank is selected according to a train and a line segment for which the operating curve is created, the rank and the downward slope are stored. The speed limit value of the downhill section is set by the data. An example of the downward slope limitation table is shown in FIG.

The downslope data is created as follows. For example, when the actual gradient between the A station and the B station is as shown in FIG. 8, first, gradient data is created by obtaining the actual gradient amount for each gradient section. This gradient data includes all data of uphill gradient, downhill gradient and no gradient (0 gradient).

Next, an average gradient is calculated for each 1000 m, with the change point of the gradient as the start point or the end point. In FIG. 8, the average gradient of the section of 1000 m from the A station, the section of 1000 m from the point P, the section of 1000 m from the point Q, and the section of 1000 m from the point S toward the A station is calculated. Since the point 1000 m from the R point is out of the area between the A station and the B station, the 1000 m section having the R point as the start point or the end point is excluded.
The maximum value of the average gradient every 1000 m calculated in this way is set as the standard downward gradient between the stations. In the example of FIG. 8, the standard downward slope is −6.5 in the section 1000 m from the A station.

However, the distance between station A and station B is 1000 m.
If it does not satisfy the above condition, the average gradient between the A station and the B station is set as the standard downward gradient. For a section where the actual gradient amount is larger than the standard downward gradient, the actual gradient amount is replaced with the standard downward gradient to form the downward gradient data. This downward slope data is calculated in advance for each station and is stored in the external storage device 9 as described above.

The curve limit sets a speed limit when traveling on a curved portion, and the speed limit value is set by the curve limit table read from the external storage device 9 as basic data and stored in the RAM 1c. The curve limit table is composed of radius data, curve ranks set by train performance and line sections, and speed limit values corresponding to them. The curve restriction table is stored in the RAM 1c as a table map, and when a curve restriction rank corresponding to a train and a line section for which the operation curve is to be created is selected when creating the operation curve, the curve and the radius data are used. The speed limit value of the curve section is set.
An example of the curve restriction table is shown in FIG.

Since the radius data is composed of values delimited at predetermined steps, the actual radius value is replaced with the corresponding value of the radius data to set the speed limit value. For example,
Assuming that the actual radius is 4800 m, 4600 that is the closest value to 4800 within a range not exceeding 4800 is selected from the radius data. The speed limit value in the curve limit table is selected based on the radius data value thus selected and the curve rank.

The turnout limit sets a speed limit value when passing through the turnout. The branching device data for setting the speed limit value is read as basic data from the external storage device 9,
It is stored in the RAM 1c. Based on the turnout data, the speed limit value is selected according to the type of train such as limited express or normal when passing directly through the turnout or branching.

The traffic signal limit is a speed limit value when passing a distance of a certain traffic signal. When the speed limit value is input to the data regarding a certain traffic light in the traffic light data, this is set as the speed limit value of the traffic light.
The traffic signal data is read as basic data from the external storage device 9 and stored in the RAM 1c.

The special restriction is a general term for restrictions other than the above-mentioned downward slope restriction, curve restriction, branching device restriction, and traffic signal restriction.
For example, there is a limit in the curved portion where the limit by the curve limit table cannot be applied due to lack of a cant or lack of a relaxation curve, limit due to soft ground, speed limit in a rockfall caution driving section, and the like. Such restrictions are stored in the external storage device 9 as special restriction data in the basic data. The special restriction data is read as a part of the basic data and stored in the RAM 1c.

The maximum speed is a speed limit value set according to the train type, etc. for a certain section delimited by geographical conditions, etc., and is stored as basic data in the external storage device 9 as maximum speed data. There is. The maximum speed data is read as a part of the basic data and stored in the RAM 1c.

The actual train travel is within a range that does not exceed the permissible speed under various restrictions and conditions as in the above example.
This is done in accordance with the driving standard based on the driving curve diagram that is formulated taking into consideration economic efficiency and ride comfort. The operation curve is created as follows assuming the actual running of the train.

First, a basic calculation formula is shown. The running curve during power running and coasting is the speed V at time t (seconds).
(Km / h) and the distance S (m) are calculated by the following formulas.

[0052]

[Equation 5]

[0053]

[Equation 6]

It is Here, T: motor vehicle tension (kg) R: train starting resistance or running resistance (kg) G of: grade resistance (kg) R _C: curve resistance (kg) R _t: marrow canal resistance (kg) W _a : Total weight of train including passenger weight (t) γ: Inertia coefficient

The operating curve during braking is

[0056]

[Equation 7]

[0057]

[Equation 8]

At time t (seconds), the velocity V (km
/ H) and the distance S (m) are calculated by the following formula.
Here, t ₀ : reference time (second) V ₀ : speed at time t ₀ (km / h) S ₀ : distance at time t ₀ (m) D: brake deceleration (km / h / second) Represent

These numerical values used in the equations (5) to (8) for creating operating curves during power running, coasting and braking are the types of electric vehicles (electric locomotive, diesel locomotive, train or diesel vehicle). ), Speed, number of units, locomotive weight, train weight, number of passengers, boarding efficiency, etc., are used as parameters selected from train performance data and traction constant data. A program for selecting a numerical value is stored in advance in the ROM 1b, and the CPU
1a selects a numerical value from the above-mentioned data by this program, and creates an operating curve assuming actual train travel by using the formulas (5) to (8) and the various restrictions and conditions described above.

The automatically created operation curve is displayed on the CRT 11 (step 450). A display example is shown in FIG. The horizontal axis is the distance axis, and the numbers such as 350 indicate the starting point of the line, for example, the line distance from Tokyo station. The vertical axis indicates the speed (Km / h) and time (seconds). 0,
10, 20, ... 130 are speed scales, 0, 60, 12
0 ... 600 is the time scale. Although not shown in FIG. 10, the positions and sections of various limiting conditions such as curves, signals, and gradients, and numerical values such as curve radii and gradient values are displayed at the bottom and top of the figure along the distance axis direction. It is possible to display, and it is also possible to display the route distance, speed, notch, etc. at a certain point.

In the operation curve display, the speed curve and the time curve are normally displayed at the same time, but it is possible to display only the speed curve. Then, whether or not the operation curve needs to be corrected is instructed (step 460). If no correction is necessary, the created operation curve data is stored in the external storage device 9 (step 470). When the storage process is executed, the process returns to "return" and the present subroutine ends.

If the correction is required, the operation curve correction routine is started (step 500). FIG. 5 shows the operation curve correction routine. In the operation curve correction process, the target of the direct correction is the speed curve of the two curves forming the operation curve, so only the curve portion is shown in FIG. FIG. 12 shows the speed limit value V between the points of the distances L _{1 to} L _2.
This is an example when there is a limit of ₁ . Further, FIG. 10 shows a display example of the automatically created running curve, and FIG. 11 shows a modified display example of the running curve. A description will be given with reference to FIG. 12 among these drawings.

The curve l ₀ is a velocity curve automatically created. The train travel assumed on this curve l ₀ is as follows. It starts from a distance of 0 points and gradually accelerates with powering (section a). Since the speed limit value V ₁ was reached at the point L ₃ within the limit section, the vehicle was decelerated by the brake (section b) and L ₄
Powering will start again at the point and will accelerate (section c). L ₅
At the point, the speed limit value V ₁ is reached again, so the vehicle is decelerated by the brake (section d). Then, from the L ₂ point, powering (e
Part)

For example, when the train runs on the curve l ₀ , the acceleration and deceleration are repeated, so that correction may be required in terms of energy efficiency and riding comfort. The operation curve correction process is mainly performed in such a case.
In the correction process, the mouse 3 or the keyboard 5 is operated to select and instruct a coordinate point on the display screen of the CRT 11 with the cursor (step 510). The coordinate point selected here does not necessarily have to be on the curve l ₀ .

Subsequently, the acceleration / deceleration condition of the speed curve created from the selected coordinate point as a starting point is input (step 5).
20). Here, at the same time, it is possible to instruct the extension direction of the curve to be, for example, a direction in which the distance increases from the starting point along the distance axis or a direction in which the distance decreases. In addition, it is possible to set the direction such that the distance is large unless otherwise specified.

Electronic control in which coordinate points and acceleration / deceleration conditions are input
The device 1 displays a velocity curve in the direction according to the instruction or setting.
Calculate and instruct CRT 11 to display (step 5
30). Thus, for example, from the coordinate point x as a starting point,
By inputting different acceleration conditions, you can draw the curve of f part
It In this case, set the speed limit value to V₁ Distance without reaching
Distance L₁ ~ L₂ Between the points of
Because there is no repeated deceleration, the ride comfort is improved
Become. Alternatively, with the coordinate point y as the starting point, a direction with a small distance
It is also possible to draw the curved line g portion on. In this case
Curve l at gauge point z ₀ Since it intersects with
Then, it becomes similar to the case where a curve is drawn in the direction of large distance. Was
However, if the acceleration / deceleration conditions are different, the drawn curves will also be different.
Will be

When a new curve, f section or g section in the above example, is drawn on the CRT 11, an instruction is made to erase unnecessary portions to form one continuous curve (step 54).
0). For the instruction of erasing, the mouse 3 or the keyboard 5 is operated to select and instruct a coordinate point on the display screen of the CRT 11 or one section of a curve with the cursor. This selection and deletion can be set in various ways. For example, when the part a is selected, it is set to delete all the parts b, c, d, and e connected to the part a, and the part a and the part b connected to the part up to the intersection point with the part f are deleted. Settings such as erasing are possible.

If additional modifications are needed, step 510.
Returning to (step 550), the above steps 510 to 540 are repeated. When the correction is completed, a time curve based on the corrected speed curve is created and stored in the external storage device 9 as an operation curve that combines the two (step 5).
60). Then return to the main routine.

Next, the case where the function is selected to be modified in the operation curve creation routine will be described. First, correction of the operation curve is selected in the function selection step (step 410).

Then, the operation curve to be corrected is designated (step 480). The operation curve is specified by inputting the target line section, the target train set, and the like and specifying the target operation curve. The target operation curve can be easily specified by reading a line section list, a train formation list, etc. from the basic data and displaying them, and selecting and instructing them with a cursor on the display screen of the CRT 11. Further, it is also possible to adopt a system in which line sections, train formations, etc. are coded and the codes are input.

After the operation curve is specified, the operation curve data is read from the external storage device 9 and displayed (step 4).
90). Next, the routine proceeds to the operation curve correction routine (step 500). The processing in this routine is as described above.

Next, the time-distance curve creating function will be described. The time-spacing curve represents the positions of the beginning and the rear end of a train when a train actually travels in a line section as a graph with the horizontal axis as the time axis and the vertical axis as the distance axis. Figure 1
An example is shown in 3. The distance and station are displayed along with the distance on the distance axis, and this is used to calculate the time gap between the preceding train and the following train. Lines 354, 353, etc. described on the distance axis in FIG. 13 are route distances (km) from the starting point.
And 5, 10 on the time axis are time displays in units of minutes.

When the time-space curve creation is selected, first, the operation curve which is the basis of the creation is designated (step 60).
0). The operation curve is specified by inputting the target line section, the target train set, and the like and specifying the target operation curve. To identify the target operation curve, the line list, train set list, etc. are read from the basic data and displayed.
On the display screen of T11, it is convenient if the setting is made by selecting with a cursor and giving an instruction. Further, it is also possible to adopt a system in which line sections, train formations, etc. are coded and the codes are input.

After the operation curve is specified, the operation curve data is read from the external storage device 9 (step 61).
0). Then, based on the time curve data of the operation curve data, the time interval curve data is created according to the total length of the train (step 620). The created time-space curve data is stored in the external storage device 9 (step 630).

When printing is selected as the function, the process proceeds to the printing routine (step 700). The print routine is shown in FIG. The data to be printed are the basic data, the driving performance curve data, the driving curve data, the data stored in the external storage device 9 such as the time interval curve data, and the RAM 1c.
The data stored in. Further, these data can be converted into train operation assistance data for assisting train operation and can be printed as various forms.

In the print routine, first, the type of data to be printed and the output format are designated (step 71).
0). The instruction is made by operating the mouse 3 or the keyboard 5, but it is convenient if a data list, a line section list, a train organization list, etc. are displayed on the CRT 11 and selected with a cursor to give an instruction. .. Further, a method of coding the data type and inputting the code may be used.

Next, the designated type of data is read from the external storage device 9 (step 720). The read data or the data stored in the RAM 1c is converted according to the instructed output format and is output to the printer 13 together with the print instruction (step 730).

When the above processing is completed, the procedure returns to the main routine and returns to the main routine. When the end is instructed by the function selection of the main routine, the operation curve drawing device of the present embodiment stops its operation (step 800). As described above, in the operation curve diagram drawing apparatus of the present embodiment, when the line section and the train organization are instructed, the operation curve corresponding to the instruction is created and displayed on the screen of the CRT 11.

If the coordinate points and the acceleration / deceleration conditions are indicated in the speed curve portion of the operation curve displayed on the screen of the CRT 11,
A velocity curve under the designated acceleration / deceleration conditions is calculated and displayed starting from the coordinate point. Then, if you specify the part of the speed curve that should be deleted, the speed curve that deleted that part is displayed. This allows the newly modified velocity curve to be displayed.

When the time curve is displayed together with the speed curve, when the speed curve is modified, the time curve is also modified accordingly. Therefore, the driving curve is corrected and displayed according to the correction of the speed curve. The operation curve thus created is stored as operation curve data, and can be read out and printed at any time.

Therefore, a large number of operating curves can be created and printed with a small amount of time and manpower, so that the operating curves can be efficiently created by comparing and examining a large number of operating curves. Further, for example, when the creation of the time-slot curve is displayed, the train operation assistance data corresponding to the operation curve data is created and displayed, so that the time-series curve and the train operation assistance material can be efficiently created.

In the operation curve diagram drawing apparatus of this embodiment, the electronic control unit 1 is used to create and modify various curves.
It is possible to display it on the CRT 11 in parallel with the calculation processing in. Further, although it is possible to display the data before printing, it is also possible to execute only printing without displaying the data.

Although the embodiments have been described above, the present invention is not limited to the above-described embodiments, and various improvements can be made without departing from the scope of the present invention.

[0084]

In the operation curve drawing drawing apparatus of the present invention, when a line section and a train set are instructed, an operation curve corresponding to the instruction is created and displayed on the screen of the CRT. When the coordinate point and the acceleration / deceleration condition are indicated in the speed curve portion of the operation curve displayed on the screen of the CRT, the velocity curve under the specified acceleration / deceleration condition is calculated and displayed with the coordinate point as the starting point. Then, if you specify the part of the speed curve that should be deleted, the speed curve that deleted that part is displayed.

The speed curve is rewritten according to the coordinate points and the instruction of acceleration / deceleration conditions.
You can draw with a simple operation and in a short time. Further, when the time curve is displayed together with the speed curve, when the speed curve is modified, the time curve is also modified accordingly. Therefore, the driving curve is corrected and displayed according to the correction of the speed curve. The operation curve thus created is stored as operation curve data, and can be read out and printed at any time.

Therefore, a large number of operation curves can be created and printed with a small amount of time and manpower, so that the operation curves can be efficiently created by comparing and examining a large number of operation curves. Further, for example, when the creation of the time-slot curve is displayed, the train operation assistance data corresponding to the operation curve data is created and displayed, so that the time-series curve and the train operation assistance material can be efficiently created.

Moreover, since the operation curve data can be easily converted into other form creation data, it becomes easy to create the forms based on the operation curve data.

[Brief description of drawings]

FIG. 1 is a block diagram illustrating a basic configuration of an operation curve diagram drawing apparatus according to an embodiment.

FIG. 2 is a block diagram of an operation curve diagram drawing apparatus according to an embodiment.

FIG. 3 is a flowchart of a main routine in the embodiment.

FIG. 4 is a flowchart of a running curve creation routine in the embodiment.

FIG. 5 is a flowchart of a running curve correction routine in the embodiment.

FIG. 6 is a flowchart of a print routine according to the embodiment.

FIG. 7 is an explanatory diagram illustrating an example of a downhill slope limitation table.

FIG. 8 is an explanatory diagram showing an example of a downhill slope.

FIG. 9 is an explanatory diagram illustrating an example of a curve restriction table.

FIG. 10 is an explanatory diagram illustrating an example of a running curve automatically created by the running curve diagram drawing device according to the embodiment.

FIG. 11 is an explanatory diagram showing an example of a corrected operation curve after being automatically created by the operation curve drawing drawing apparatus of the embodiment.

FIG. 12 is an explanatory diagram of an operation curve correction procedure by the operation curve drawing drawing apparatus according to the embodiment.

FIG. 13 is an explanatory diagram illustrating an output example of a time interval curve.

FIG. 14 is an explanatory diagram illustrating an output example of a load curve.

FIG. 15 is an explanatory diagram illustrating an output example of an acceleration force curve.

FIG. 16 is an explanatory diagram illustrating an output example of a velocity-distance curve.

[Explanation of symbols]

1 ... Electronic control device, 3 ... Mouse, 5 ... Keyboard, 7 ... Floppy disk driver, 9 ...
External storage device, 11 ... CRT, 13 ... printer

Claims (3)

[Claims] 1. A data storage unit for storing basic data relating to a railway line and a vehicle, a display unit for displaying an operation curve diagram, a desired coordinate point on the operation curve diagram, and the coordinate point is set as the basic point. Instructing means for giving an instruction together with the data and the acceleration / deceleration condition from the coordinate point, and extracting the basic data from the data storage means in response to the instruction from the instructing means, and in accordance with the basic data and the acceleration / deceleration condition. An operation curve drawing device, comprising: display control means for displaying a speed curve on the operation curve diagram of the display means. 2. The operation curve drawing device according to claim 1, wherein the display control means causes the display means to display a time curve corresponding to the speed curve on the operation curve diagram. 3. The running curve drawing apparatus according to claim 1, wherein the display control means creates train operation assistance data in accordance with the basic data and the speed curve or the time curve.