JP3853933B2 - Bifurcation section trajectory error detection method and apparatus for carrying out this method - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
More particularly, the present invention relates to a turnout section trajectory error detection method and an apparatus for performing the method, and more particularly to a turnout section trajectory error detection method for detecting a trajectory error in a turnout section where a turnout exists in a railway track, and It relates to an apparatus for carrying out this method.
[0002]
[Prior art]
In order for a railway train to operate in a safe and comfortable state, it is necessary that the track has sufficient strength and is always maintained and maintained in a good state. However, each time a train passes, the track is repeatedly subjected to a load, and each part is displaced and deformed, resulting in a track error. If this deviation becomes larger, the riding comfort of the train becomes worse, and if this deviation becomes even larger, there is a risk of causing a train derailment accident. For this reason, it is necessary to always accurately grasp the state of the orbit error, and to maintain or improve the defective portion without losing the machine.
[0003]
The trajectory error that expresses the state of the trajectory deformation is defined by classifying as follows, and measured according to this definition.
In the case of a general railway track, the following five items of track error are normally defined as track errors, and the standard measurement interval is 5 m.
1. Unevenness in the length direction of the rail. Generally, a 10m-long yarn is stretched on the inner surface of the rail, expressed by the horizontal distance between the rail and the yarn at the center, and the difference between the basic dimensions. It is a crazy amount.
[0004]
2. Unevenness in the length direction of the rail top surface. A 10m long yarn is stretched on the rail top surface and expressed by the vertical distance between the rail and the yarn at the center, and the difference between the basic dimensions is high or low. It is a crazy amount.
3. Gauge error The difference between the gauge dimensions and the basic dimension is the difference between the basic dimensions and the gauge error amount.
[0005]
4). Level deviation The difference in height between the left and right rails per basic dimension between gauges, and the difference from the basic dimensions is taken as the level deviation.
5). Flatness deviation This is the amount of deviation from the plane of the orbit, expressed by the algebraic difference between two level deviations at a fixed interval, and the difference between the basic dimensions is the flatness deviation.
As described above, the basis of the above-described track deviation measurement is to stretch the yarn on the inner surface of the rail and measure the horizontal distance between the rail and the yarn at the center. Here, referring to FIG. 13, the string stretched between any two of the measurement points 0 to 10 is referred to as “string”, and the length thereof is referred to as “string length: L”. The horizontal distance between the strings and the rails is referred to as “Masa: V”. The distance between a string stretched between measurement points and a point other than the midpoint of the string is called an “arrow”. Between this Masaya V and the chord length L, only this result is shown as follows (see Japanese Patent Application No. 63-248837 for details).
[0006]
Let L be the chord length between every other measurement point.₁, V₂... V₉, The chord of the chord between measurement point 0 and measurement point 4, which is twice the chord length 2L, is
V_2L= V₁+ 2V₂+ V_Three
It becomes. The relationship between the 4L string positive arrow, which is twice the string length 2L, and the 2L string positive arrow is similar to this._MThen,
V_M= V_n-3+ 2V_n-2+ 3V_n-1+ 4V_n+ 3V_{n + 1}+ 2V_{n + 2}+ V_{n + 3}It becomes.
[0007]
In this way, a short chord length L is measured, and based on this, 2L, 4L, 8L, 16L... 2ⁿA positive arrow equivalent to the positive arrow measured with the chord length of L can be obtained by calculation. This is called a multiplied string calculation processing method.
The portable orbit misalignment detector is a device that can perform the above measurement at each measurement point and store it.
[0008]
Here, a conventional example of a portable orbit misalignment measuring apparatus in the orbit misalignment measuring apparatus will be described with reference to FIG. 8 and FIG. FIG. 8 is a view showing the appearance of the portable orbit misalignment measuring device, and FIG. 9 is a view showing a state where this measuring device is installed on the rail to be measured (for details, see Japanese Patent Application No. 63-20710). reference).
The portable trajectory error detection and measurement device refers to an orbit error detection device that automatically performs the inspection work by running on the trajectory by human power. On the bottom surface of the street reference beam 100, three traveling wheels 101 that roll on the top surface of the rail to be measured 201 and run the street reference beam 100 along the rail to be measured 201 along the length direction. In addition to being attached to both end portions and the intermediate portion, two misalignment measurement reference contacts 102 that rotate in contact with the rail surface 201A of the rail 201 to be measured are provided at both end portions. On the side of the central portion of the street reference beam 100, a detector installation base 103 for installing street, gauge, and level deviation detectors is provided. The detector installation base 103 is attached with an arm 104 made of two cylindrical tubes passed to the opposite rail 202, and the free end of the arm 104 is extendable with respect to the arm 104. An auxiliary beam 106 parallel to the opposite rail 202 is attached via a provided shaft 105.
[0009]
A traveling wheel 107 that rolls on the top surface of the opposite rail 202 is attached to the center of the auxiliary beam 106, and a gauge misalignment measuring contact 108 that rotates in contact with the opposite rail gauge surface 202A is attached. Yes. A compression coil spring 109 is built in between the arm 104 and the shaft 105, and a gauge misalignment measuring contact 108 is pressed against the opposite rail gauge surface 202 </ b> A. The contact 102 is pressed against the rail surface 201A of the rail to be measured.
[0010]
The distance L between the reference contacts 102 for measuring the deviation provided on the reference beam 100 is the measurement chord length for the deviation measurement, and the distance L between the axes of the traveling wheels 101 is the measurement chord length for the deviation measurement. It becomes.
The street reference beam 100 has a flat cross-sectional shape in the vertical direction and exhibits sufficient rigidity for the curvature in the street directions of the rails 201 and 202, but the central portion follows the curvature in the elevation direction. And can be deformed.
[0011]
The high and low reference beam 113 is mounted on the upper surface of the reference beam 100. The high and low reference beam 113 is formed of a flat plate as shown in FIG. 8 and is mounted on the reference beam 100 with the long side of the flat plate cross-section extending in the vertical direction, and exhibits sufficiently high rigidity in the vertical direction. The high and low reference beam 113 is connected to the reference beam 100 on the upper surface of the axial center position of the traveling wheel 101. As for the connection method, one is connected to the shaft and the other is mounted on the roller. be able to. In this way, the high and low reference beam 113 is combined in a free state with respect to the vertical deflection of the reference beam 100.
[0012]
This portable inspection device is also provided with a branching unit passing mechanism for safely passing through the missing portion of the track, which will be described with reference to FIG. 9 (for details, see Japanese Patent Application No. 63-326527). See the description).
A plurality of guide rollers 110 arranged in a fan shape in a direction away from the gauge surface are attached to both sides of the traversing measurement reference contact 102, and at the center of the traversing reference beam 100 and the traversing measurement reference contact 102. The auxiliary roller 111 for passing a broken line portion is attached to each intermediate portion. The auxiliary beam 106 of the opposite side rail 202 is provided with a plurality of broken line passing guide rollers 112 at positions on both sides and both ends of the contact deviation measuring contact 108. By providing these auxiliary rollers 111 and the respective guide rollers 112, the portable inspection device can pass through the broken line portion in the branching device.
[0013]
The method of detecting each track error and distance by the above portable track error measuring device will be briefly described with reference to each drawing.
1. Inspection of high and low
With reference to FIG. 8 and FIG. 10, first, the mounting position of the portable trajectory error detector and the structure of the height error detector will be described.
[0014]
The height fluctuation detector 301 is attached to the side surface of the height reference beam 113 at the center position of the measurement string length L as shown in FIG. 10 (for details, refer to the specification of actual application 63-20710). A ball spline 303 is attached to the inside of the case 302, and the thrust shaft 304 is supported by the ball spline 303 so as to be able to thrust. The thrust direction of the thrust shaft 304 is selected in the vertical direction, and a contact 305 is attached to the lower end thereof. The contact 305 contacts the contact surface 114, receives the vertical displacement of the top surface of the measured rail 201 via the traveling wheel 101, and receives the thrust shaft 304 with respect to the height reference beam 113 as the reference measured rail 201. It follows the vertical displacement of. The deviation detector 306 is provided in parallel with the axis of the thrust shaft 304. A differential transformer can be used as the deviation detector 306. The thrust shaft 304 and the movable core 307 of the displacement detector 306 are connected by a connecting bar 308, and the vertical displacement of the measured rail is transmitted to the displacement detector 306. A tension coil spring 310 is provided between the connecting bar 308 and the fixed base 309. By pulling the connecting bar 308 downward, the contact 305 attached to the thrust shaft 304 is always pressed against the contact surface 114. Yes.
[0015]
2. Inspection of street madness
8 and 9 will be used to explain the mounting position and structure of the erratic detector.
The passing detector 401 is mounted on the detector mounting base 103 provided at the center of the passing reference beam 100 at the center position of the measurement string length L. The run-off detector 401 has an equivalent structure corresponding to the high / low run-off detector 301. As shown in FIG. 9, the measuring roller 403 is pressed against the rail surface 201 </ b> A of the rail 201 to be measured by the spring 402, and the deviation amount of deviation is measured.
[0016]
3. Gauge error inspection
With reference to FIG. 9 and FIG. 11, the mounting position of the gauge error detector and its structure will be described.
In FIG. 9, the gauge error detector 601 is mounted on the detector installation base 103, and the displacement amount of the relay shaft 115 attached to the free end portion of the shaft 105 connecting the arm 104 and the auxiliary beam 106. Measure. In FIG. 11, the displacement detector 606 is formed of a differential transformer, and a measurement shaft 604 connected to the core shaft 603 is always pressed against the relay shaft 115 by a compression coil spring 602, and the displacement of the relay shaft 115 is detected as a core shaft. Measured by displacement of 603.
[0017]
The amount of deviation between the rails is a deviation amount with respect to the reference dimension of the right and left rail gauge surfaces, and is obtained by adding the amount of deviation detected by the passage deviation detector and the amount of deviation detected by the gauge deviation detector.
4). Inspection of standard deviation
With reference to FIG. 8, the mounting position of the level deviation detector and its structure will be described.
[0018]
The level deviation detector 501 is mounted on the detector installation table 113 and detects the inclination angle of the left and right rails. A general-purpose inclinometer is used as the level deviation detector 501.
5). Distance measurement
Although a specific configuration of the distance detector is not shown, a general-purpose distance detector can be used. The distance detector is attached to one of the traveling wheels 101 provided on the lower surface of the beam 100. The distance detector has a rotary encoder as a measurement sensor, which is directly connected to the traveling wheel shaft, and rotates the rotary encoder together with the traveling wheel, so that one pulse is transmitted every time it travels at regular intervals. . The travel distance can be integrated by inputting this pulse to the data acquisition device.
[0019]
With reference to FIG. 12, the calculation processing of the portable orbit misalignment measuring apparatus will be described.
In FIG. 12, 301 is a high / low deviation detector, 401 is a deviation detector, 501 is a level deviation detector, 601 is a gauge deviation detector, and 701 is a distance detector. A pulse generated from the distance detector 701 is input to a processing unit CPU composed of a microcomputer. The distance pulses input to the processing device CPU are cumulatively added by a counting unit provided in the data processing device, and the processing device CPU performs a sample hold circuit SP each time the travel distance value reaches a predetermined value.₁, SP₂, SP_Three, And SP_FourThe inspection command pulse is output to. Sample hold circuit SP that received the command₁, SP₂, SP_Three, SP_FourSamples and holds the current measurement value of each of the trajectory detectors.
[0020]
Sample hold circuit SP₁, SP₂, SP_Three, SP_FourThe detection values of the respective detectors sampled and held in (1) and (2) are selected one by one by the multiplexer MP, input to the analog-digital converter AD, digitally converted, and input to the processing unit CPU. Each measurement value input to the processing device CPU is arranged in each storage area and stored in the storage device ME.
[0021]
[Problems to be solved by the invention]
By the way, the high-speed trajectory error detection device and the portable trajectory error detection device both measure the trajectory error of the general trajectory, and correspond to the measurement of the trajectory error of the turnout section. It is not a thing, but the current situation is that most of the measurement of the trajectory error in the turnout section is done manually. Compared to other orbit inspection work, the manual measurement of the trajectory deviation of the turnout section is very complicated and requires a great deal of manpower and work. Need time. That is, when performing measurement, since the measurement points for each trajectory deviation differ depending on the type of the branching device, it is necessary to first position the measurement point using the branching device drawing. The measured data cannot be used as it is, and the amount of deviation must be calculated manually from the enlarged dimensions due to slack and other reference dimensions. Furthermore, these reference dimensions also take various values depending on the type of single-open branching device, double-opening branching device, distribution branching device, and other branching devices, the weight of the unit length of the rail used, and the number of branching devices. In addition, when measuring, it is necessary to consider the occurrence of measurement errors due to weather conditions at the time of measurement, proficiency of the measurer, and erroneous entry.
[0022]
Due to the various circumstances as described above, there is a demand for early development of a trajectory error detection device for branching section measurement based on a small and simple portable trajectory error detection device used in a general trajectory.
This invention relates to the position information of the branching unit measurement points, the reference dimensions for each measurement item at each measurement point and other necessary databases, and the calculation of the arrow for the lead length with respect to the conventional small and simple portable trajectory inspection device By adding a device, based on the measurement result obtained from the trajectory error detection device, the error amount for each measurement item of the bifurcation interval is calculated and the bifurcation interval trajectory error detection method for outputting the table and An apparatus for carrying out this method is provided.
[0023]
[Means for Solving the Problems]
  The branching section trajectory error detection method of the present invention is:Of turnout sectionAt different measurement positions on the reference line side and branch line sideData calculation processing device for basic data of measurement position and basic data used to calculate each amount of deviationRemember, The branching section aboveThe measurement interval is a measurement point with an accuracy that does not affect the measurement accuracy in the inspection of the track deviation by engaging the inspection device with the outer rail with no broken line atMeasure from the measurement start point to the measurement end point and store the measured values.On the basis of the measurement value accumulated in the data arithmetic processing unit, the error detection measurement is performed on the reference line side by the multiplication operation processing method, and on the branch line side, the trajectory of the arrow is indicated. Execute the process of conversion to real linearity to obtain the measurement result, and if the measurement position and measurement point do not match, use the measurement value or measurement result of the measurement point before and after the measurement position by interpolation method. The measurement value or measurement result of the measurement position based on the measurement position basic data is obtained, and the trajectory deviation basic data of the measurement position and the measurement value or measurement result of each measurement position are obtained.To calculate the amount of trajectory error.
[0024]
  In addition, the portable trajectory error detection device of the present invention,It has a trajectory error detector and a distance detector composed of a trajectory error detector, a high / low error detector, a level error detector, and a gauge error detector, and the travel distance value measured by this distance detector is the track.Measurement interval with accuracy that does not affect the measurement accuracy in error detectionA sample hold circuit that receives a measurement command pulse every time the sample reaches the position and samples and holds the measurement value at the measurement point at that time of the orbital deviation detector. A data collection device having a storage device for storing the data in each storage area,
  From the data collection deviceAt each measurement pointIt has an input / output device for inputting measurement values, and has a hard disk for storing basic measurement position data for calculation of each trajectory error and basic data for trajectory error used to calculate each trajectory error,On the basis of the above-mentioned accumulated measurement value, the method of the multiplication calculation processing method is executed on the reference line side and the method of converting the normal arrow of the trajectory into a real line on the branch line side is performed on the reference line side. Execute the process to obtain the measurement result, and if the measurement position and measurement point do not match, use the measurement value or measurement result at the measurement point before and after the measurement position, based on the measurement position basic data by interpolation Obtain the measurement value or measurement result at the measurement position, and the basic data for the above measurement position orbit and the measurement value or measurement result at each measurement position.And a data calculation processing device having a CPU that calculates data for calculating each orbital deviation amount and having a display device that displays the measurement results.
[0025]
DETAILED DESCRIPTION OF THE INVENTION
Prior to the description of the embodiment of the present invention, the measurement position for each measurement item on the reference line side and the branch line side of the branching section will be described with reference to FIGS.
In a railroad track, in the branching section where a branching unit exists, it is stipulated to measure four items of trajectory error, high / low error, gauge error, and level error as the items of the track error to be measured, as in the general track. ing. In the branching section, the position where the measurement should be performed is defined for each measurement item in consideration of both maintaining the function of the branching unit and ensuring safety. Depending on the type of the branching device, the measurement position is determined for each measurement item on the reference line side and the branch line side. In addition, regarding the measurement of deviations, the reference line side should measure the positive arrow at the center of the same 10m yarn length as the general track, but in the case of the branch line side, the lead rail should be measured. Measure the arrows at 1 / 4L, 1 / 2L, 3 / 4L on the string with the total length L, and measure the center arrow that is the seam position on the 6m string centered on the rail joint. The measurement method is partly different from that of general orbits.
[0026]
Here, the measurement position differs slightly depending on the branching device type, but for example, a 60 kg rail 18^#The measurement position of the single-opening branch using fixed crossing will be described.
On the reference line side shown in FIG. 1 (a), measurement positions No1, 5, 6, and 8 indicate the position of the rail joint, No2 indicates the tip of the Tongrel T, and No3 is 880 mm away from the tip of the Tongrel T. No. 4 indicates the center point of the Tongrel T.
[0027]
On the branch line side shown in FIG._Four), No5 (V₈), No7, No8 indicate the position of the rail joint, No1 indicates the position 880 mm away from the tip of the Tongrel T, and No2 (V₂) Indicates the center point of Tongrel T, No4 (V₆) Indicates the center point of the lead rail A, No6 (V_Ten) Indicates the center point of the lead rail B. V₁, V_ThreeIndicates the position of 1/4 and the position of 3/4 with respect to the length of Tongrel T._Five, V₇Indicates 1/4 position and 3/4 position with respect to the length of the lead rail A, V₉, V₁₁Indicates a 1/4 position and a 3/4 position with respect to the length of the lead rail B.
[0028]
FIG. 1B and FIG. 2B show measurement items for each measurement position. On the reference line side, the traversing measurement is performed with a 10-m chord centered on the measurement point, but on the branch line side, the length of each of the tongrel T, lead rail A, and lead rail B is taken as the chord length. It is a 6 m string positive arrow centered on the arrow, the positive arrow, and the rail joint at the 1 / 4L, 2 / 4L, and 3 / 4L positions, and the measurement method is different from the reference line side.
[0029]
The trajectory error measurement according to the present invention will be described below.
Fig. 3 shows the installation of the orbit error detector and the inspection range. For example, when measuring a branching device section where a single-opening branching device exists, each of the reference line side and the branching line side is measured separately.
The crossing portion of the branching device is provided with a gauge line broken line portion for securing the wheel flange way, and this broken line portion is sufficiently long compared to the measurement interval. In the measurement error by the inspection device, when performing multiplying string calculation processing based on the positive arrow measured with the measurement string length L, continuous measurement data is required, but this missing line is the measurement point. In this case, an accurate measurement value cannot be obtained. Therefore, in order to obtain an accurate measurement value, the inspection apparatus is installed by engaging the reference beam 100 with the outer rail, which is a continuous rail without a broken line, as the erratic detector 401 is attached. To check.
[0030]
As for the measurement start point, there is a measurement item that is up and down at the position of the tip of the Tongler T, and the reference line side and the branch line side in consideration of the measurement distance of 5 m or more required to calculate the 10 m string Masaya In both cases, the measurement starting point is a position 6 m before the tip of the Tongrel T. With respect to the measurement end point, there is a measurement item that is up and down at the rail joint position at the front end of the crossing part, and the length of the crossing part is 1 m or more, and the measurement end point is 4 m or more from the crossing rear end joint.
[0031]
The measurement interval is set according to the number of pulses transmitted from the distance detector. Although the measurement interval is fixed, the position to be measured for each measurement item in each branching device is various and does not always coincide with the measurement point of the inspection device. Therefore, when the measurement position does not match the measurement point, the measurement value at the measurement position is obtained by the interpolation method using the measurement values at the measurement points before and after the measurement position.
[0032]
For this reason, in order to reduce the measurement error, it is necessary to set the measurement interval as finely as possible. However, in consideration of the amount of change in trajectory between each measurement and the storage capacity of the memory, the examples are based on measurement accuracy. The measurement interval is 10 cm, which is not affected by.
Here, basic data will be described. Two types of basic data are created: basic measurement position data for each measurement item, and basic trajectory deviation data used to calculate the deviation amount from each measurement result. For example, in the case of a single swing branching device, two types are created for each of the reference line side and the branch line side. The measurement position basic data is created for each branch device as the distance from the measurement start point to the measurement position based on the length of each rail and the amount of play between each joint described in the branch device drawing. The basic data for trajectory deviation is the basic dimensions for each measurement item at each measurement position in each branching device. FIG. 4 shows an example of basic data.
[0033]
By the way, as shown in FIG. 2, the misalignment on the branch line side is indicated by arrows and positive arrows at the positions of 1 / 4L, 2 / 4L, and 3 / 4L with the length of each rail as the chord length, and rail joints. Measure 6m chord Masaya as the center. When calculating the positive arrow for each measured string length from the measured positive arrow for the measured string length L, it can be obtained by the double length calculation formula shown in FIG. 13, but the length of each rail varies. Since the chord length does not always match the double length calculation, Masaya with the required rail length as the chord length cannot be obtained. Moreover, the arrows about the positions of 1 / 4L and 3 / 4L cannot be calculated. Here, the present invention uses “a method of converting the normal arrow of the trajectory into a real linear” as a method of calculating the deviation on the branch line side. This will be described with reference to FIG.
[0034]
FIG. 5 is a diagram showing a process of obtaining the actual linearity of the trajectory from the measured positive arrow. FIG. 5A shows a real line shape including a deformed portion in the straight line portion of the track. This deformed portion occurs over nine measurement points from +1 to +9, and the amount of deformation is 10 mm. FIG. 5B shows a positive arrow obtained by measuring the deformed portion in small increments while sequentially shifting the measurement point with the chord length L. That is, Masaya has a value of -2.5 mm at measurement point 1, +2.5 mm at measurement point 3, +2.5 mm at measurement point 7, and -2.5 mm at measurement point 9. A value equivalent to the positive arrow measured by the chord length 2L based on the positive arrow shown in FIG. 5B is as shown in FIG. 5C. Similarly, FIG. 5D shows a value equivalent to a positive arrow measured with a chord length of 4L, FIG. 5E shows a value equivalent to a positive arrow measured with a chord length of 8L, and FIG. 5F shows a measurement with a chord length of 16L. The value is equivalent to Masaya. FIG. 5F coincided with the real line shown in FIG. 5A. In the specific example of FIG. 5, for the deformed portion, nine measurement points of +1 to +9 are set for the width 4L, and the measured portion is measured in small increments. This means that the right arrow of the orbit including the deformed portion was converted to a real linear shape (for details, see Japanese Patent Application No. 63-248837). In the present invention, the measurement value obtained by the measurement string length L is subjected to a multiplying string calculation process, converted to a real linearity, and then a positive arrow and an arrow for each string length are calculated from the converted real linear value.
[0035]
Finally, referring to FIG. 6, data processing by the portable orbit misalignment measuring apparatus of the present invention will be described. The portable trajectory error detection device of the present invention is obtained by using the portable trajectory error detection device shown in FIG. 12 as a data collection device 50 as it is and adding a data operation processing device 60 to the data collection device 50.
In the data arithmetic processing device 60, the CPU 61 for arithmetic processing of data, the CRT 62 for displaying data, and the keyboard 63 can use components of a personal computer. The hard disk HD 65 prepares and stores in advance the basic data of the measurement position, which is the position information of each measurement point, and the basic data of the measurement position, which is the basic dimension of each measurement item at each measurement point, as a database for each type of branching device Keep it. The memory RAM 66 stores a processing program that causes the CPU 61 to operate in a predetermined order. The data collection device 50 stores the measurement data that is the result of the trajectory inspection in the storage device ME. After the trajectory inspection is completed, the measurement data taken from the storage device ME to the data arithmetic processing device 60 is input to the CPU 61 via the I / O 64 that is an input / output device, and transferred and stored from the CPU 61 to the HD 65.
[0036]
Here, the arithmetic processing operation of the data arithmetic processing device 60 will be described with reference to the flowchart of FIG.
First, when the data arithmetic processing device 60 is STARTed and the keyboard 63 is operated to input and select the type of branching device, the processing program is started. The position information, basic dimensions, and measurement data of each measurement point written in the HD 65 are sequentially retrieved and read out, and the CPU 51 calculates and compares them. The calculation result of the CPU 51 is stored again in the HD 65 and output and displayed on the CRT 62 via the input / output device I / O 64. When the calculated value calculated by the CPU 51 exceeds the limit range as compared with the basic dimension defined in advance, this is blinked on the CRT 62 or the display color is changed. Next, the operation comparison processing result is stored in the HD 65, and the process ends.
[0037]
【The invention's effect】
As described above, according to the present invention, the portable trajectory misalignment detection device for a general trajectory is used as it is as a data collection device, and a data arithmetic processing device is newly added to the data gathering device. The inspection device can be configured to check the turnout section trajectory error.
[0038]
Then, by creating a database of each branching device and storing it in a fixed disk of the computer, it is possible to perform arithmetic processing immediately after the inspection by the inspection device and output each trajectory error.
Further, by comparing the measurement data with the basic dimension, when the limit range for the basic dimension is exceeded, this can be easily displayed on the display. Therefore, the work time in inspection can be significantly shortened compared to human power, and the condition of the trajectory can be accurately grasped, so the effect of ensuring safety during branching section inspection is large.
[Brief description of the drawings]
FIG. 1 is a diagram for explaining reference line side measurement items and measurement positions;
FIG. 2 is a diagram for explaining branch line side measurement items and measurement positions;
FIG. 3 is a diagram showing a reference line and a branch line.
FIG. 4 is a diagram showing an example of measurement positions and basic dimensions.
FIG. 5 is a diagram illustrating a process of obtaining a real linearity of a trajectory from a measured positive arrow.
FIG. 6 is a diagram illustrating a data calculation processing device.
FIG. 7 is an operation flowchart of the embodiment.
FIG. 8 is a diagram showing a conventional example of a portable orbit misalignment inspection device.
9 is a diagram showing a conventional example of FIG. 8 installed on a rail.
FIG. 10 is a diagram illustrating a high / low deviation detector.
FIG. 11 is a diagram illustrating a gauge error detector.
FIG. 12 is a diagram for explaining calculation processing of a conventional example.
FIG. 13 is a diagram for explaining a measurement principle and a multiplied string calculation process;
[Explanation of symbols]
50 Data collection device
60 Data arithmetic processing unit
61 Second CPU
64 I / O devices
65 Hard disk HD
301 High and low detector
401 Strange detector
501 Level error detector
601 Gauge error detector
701 Distance detector
CPU processing unit
ME storage device
SP₁, SP₂, SP_Three, SP_Four  Sample hold circuit

Claims (2)

Storing track deviation basic data used for calculating the measured position basic data and the track deviation amount with respect to the track deviation measurement items at each different measurement positions in the reference line side and the branch line side of the splitter section to the data processing unit And
From the measurement start point to the measurement end point with a measurement interval of accuracy that does not affect the measurement accuracy in the detection of track deviation by engaging the inspection device with the outer rail with no broken line in the branch section Measure until it reaches and accumulate the measured value,
On the basis of the measurement value accumulated in the data arithmetic processing unit, the error detection measurement is performed on the reference line side by the multiplication operation processing method, and on the branch line side, the trajectory of the arrow is indicated. Execute the process of the method of converting to real linear to obtain the measurement result,
If the measurement position and measurement point do not match, use the measurement value or measurement result at the measurement point before and after the measurement position to obtain the measurement value or measurement result at the measurement position based on the measurement position basic data by interpolation. ,
A branching section trajectory error detection method characterized in that the trajectory error amount is calculated by comparing the trajectory error basic data of the measurement position with the measurement value or measurement result of each measurement position . It has a trajectory error detector and a distance detector composed of a trajectory error detector, a high / low error detector, a level error detector, and a gauge error detector, and the travel distance value measured by this distance detector is used to detect the error of the error. A sample hold circuit that receives a measurement command pulse every time a measurement interval with an accuracy that does not affect the measurement accuracy in the sample is reached, and samples and holds the measurement value at the current measurement point of the trajectory error detector. Comprising a data collection device having a storage device for storing the sampled and held measurement values of each of the trajectory error detectors in the respective storage areas;
It has an input / output device that inputs measured values at each measurement point of each orbital deviation detector from the data collection device, and calculates basic measurement position data and each orbital deviation amount for each orbital deviation measurement item in the branching section. It has a hard disk for storing basic trajectory deviation data to be used. On the basis of the accumulated measurement value, the fault detection measurement is performed on the base line side while executing the multiplication operation processing method and on the branch line side. If the measurement position does not match the measurement point, the above measured value or measurement result at the measurement point before or after the measurement position is obtained. the measurement or measurements of a measurement position based on the measurement position basic data determined is compared with the measurement or measurements of the orbit deviation basic data and the measured position of the measurement position by interpolation using A CPU for processing the data for calculating the respective track deviation amount comprises a data processing device having a display device for displaying the measurement result,
A portable orbit misalignment measuring device characterized by that.

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