JP6351402B2 - Rail surface measurement device - Google Patents

Description

  The present invention relates to a rail shining surface measuring device for measuring a shining surface of a rail.

Railroads are regularly maintained for the purpose of safe operation and improved ride comfort.
A device for measuring the displacement of a track is known as a device for use in such track maintenance (see, for example, Patent Document 1).

However, even where there is no displacement of the track, there are actually places where the vehicle shakes and where the ride feels uncomfortable.
In such places, it is known that the shining surface formed on the surface of the rail due to the friction between the rail and the wheel is not formed uniformly along the longitudinal direction of the rail, and by measuring this shining surface, The location where the vehicle shakes and where the ride feels uncomfortable is grasped, and the track is more appropriately maintained.

JP2013-136352A

  Currently, the measurer manually measures the position and width of the shining surface using a gauge, but there is a problem that an error is caused by the measurer. In addition, it is necessary to perform measurement by squatting at regular intervals over a long distance, and the labor of the measurer is great.

  An object of the present invention is to make it possible to accurately measure the illumination surface of the rail and to reduce the burden on the measurer in the measurement.

In order to solve the above-described problems, the invention according to claim 1 is a rail lighting surface measuring device including a measuring unit that measures a rail lighting surface.
The measuring means includes
Lighting means for illuminating the top surface and gauge corner of the rail;
An observation means for observing a range illuminated by the illumination means, and detecting an intensity of light reflected from the top surface and the gauge corner;
A shining surface detecting means for detecting a range of the shining surface at the top surface and the gauge corner from the observation result by the observing means ,
The illumination surface detection means includes
The top surface and the gauge corner are divided into a plurality of sections set in a lattice shape so as to be aligned along the longitudinal direction of the rail and the orthogonal direction perpendicular to the longitudinal direction, and the light reception intensity by the observation means in each section Detecting the shining surface based on
The average value of the received light intensity in the predetermined number of the sections arranged in one row along the longitudinal direction is calculated for each of the plurality of rows arranged in the orthogonal direction, and each average value is compared with a threshold value. It is characterized in that a range of the shining surface in the orthogonal direction is detected by detecting whether or not a portion corresponding to the row in the rail is a shining surface .

  According to the first aspect of the present invention, it is possible to prevent an error caused by the measurer and to accurately measure the illumination surface of the rail, and to reduce the burden on the measurer in the measurement.

In addition, according to the first aspect of the invention, by averaging the results in a line along the longitudinal direction, measurement errors due to scratches and dirt on a part of the rail can be eliminated, and more accurate Measurements can be made.

The invention according to claim 2 is the rail lighting surface measurement device according to claim 1 , wherein the lighting surface detection means includes:
In the detection of the shining surface at the gauge corner, the average value of the received light intensity in the section included in the predetermined number of sections in the longitudinal direction and the predetermined number of sections in the orthogonal direction is measured from the lower end to the upper end of the gauge corner. Each of the plurality of regions arranged in parallel, and comparing each average value with a threshold value to detect whether or not a portion corresponding to the region in the rail is a shining surface. A range of the surface is detected.

According to the invention described in claim 2 , by averaging the results in a range having a predetermined spread in the longitudinal direction and the orthogonal direction, it is possible to eliminate measurement errors due to scratches or dirt on a part of the rail. More accurate measurements can be made.

The invention according to claim 3 is the rail lighting surface measuring apparatus according to claim 1 or 2 , wherein the observation means includes:
A plurality of light receiving elements arranged in a lattice shape,
One light receiving element corresponds to one section.

According to the third aspect of the present invention, the data obtained by the observation unit can be used as it is by the illumination surface detection unit, and the processing load can be reduced.

Invention of Claim 4 is a rail shine surface measuring apparatus as described in any one of Claim 1 to 3 , Comprising: The moving means which can move the said measurement means along the said longitudinal direction,
A moving distance detecting means for detecting a moving distance of the measuring means along the longitudinal direction;
With
The illuminating surface is measured each time the measuring means moves a predetermined distance.

According to the fourth aspect of the present invention, since the measurement of the shining surface is performed every time the measuring means moves a predetermined distance, measurement over a long distance is facilitated, and the burden on the measurer in measurement can be reduced.

Invention of Claim 5 is a rail shining surface measuring apparatus of Claim 4 , Comprising: The housing which mounts the said measurement means is provided,
The moving means is provided in the casing, and the measuring means can be moved by making the casing movable.
The moving means is
A first roller that is disposed at a position facing the parietal surface of the housing, is rotatable about an axis that is orthogonal to the longitudinal direction and is horizontal, and a peripheral surface abuts on the parietal surface;
The housing is arranged at a position facing the vertical surface of the rail head located below the gauge corner, is rotatable about an axis along the vertical direction, and a circumferential surface is in contact with the vertical surface. Two rollers,
A magnet disposed at a position facing the vertical surface in a state in which the second roller is in contact with the vertical surface, and disposed at a position separated from the vertical surface within a range in which the magnetic force of the magnet reaches the rail. Urging means for urging the housing in a direction to press the second roller against the vertical surface by magnetic force.

According to the fifth aspect of the present invention, since the position of the measuring device with respect to the rail is accurately defined, it is possible to accurately measure the illumination surface of the rail.

  ADVANTAGE OF THE INVENTION According to this invention, while being able to perform the measurement of the lighting surface of a rail correctly, the burden on the measurement person in a measurement can be reduced.

It is a side view of a rail lighting surface measuring apparatus. It is a top view of a rail lighting surface measuring apparatus. It is AA sectional drawing in FIG. It is a figure explaining the measuring method of the shining surface in a parietal surface. It is a figure explaining the measuring method of the shining surface in a gauge corner. It is a figure explaining the example of a display of information.

Embodiments of the present invention will be described below with reference to the drawings.
As shown in FIGS. 1 and 2, the rail shining surface measuring device 1 measures the shining surfaces of the top surface 61 of the rail 60 and the gauge corner 62 in a state of being placed on the top surface 61 of the rail 60.
The rail lighting surface measuring device 1 includes a housing 10 for attaching various devices, and the housing 10 includes various measuring devices for measuring the lighting surface and the housing 10 along the longitudinal direction of the rail 60 as various devices. A moving means 12 or the like that is movable is attached.

The housing 10 has a rectangular box shape, and a housing portion 11 is formed in the center of the housing 10. The housing portion 11 is a space opened downward for housing various devices constituting the measuring means. .
Further, on both sides of the housing portion 11 in the housing 10, there are provided moving means 12 that can move the measuring means by making the housing 10 movable along the longitudinal direction of the rail 60.
When measuring the shining surface, the rail shining surface measuring device 1 is arranged so that the moving means 12 is positioned back and forth along the longitudinal direction of the rail 60.

Further, as shown in FIG. 1 (not shown in FIG. 2), a battery storage portion 13 for storing a battery for supplying power necessary for the measuring means is formed on the upper portion of the storage portion 11, and the battery storage portion On the upper part of 13 is mounted a control device 14 for performing various controls in the measuring means.
Further, in the battery storage unit 13, a measurer pushes the rail lighting surface measuring device 1 along the longitudinal direction of the rail 60 on one side portion located rearward when the housing 10 is disposed on the rail 60. A push rod attachment portion 15 for attaching the push rod 50 for movement is formed.

Inside the housing portion 11, the illumination means 20 that illuminates the top surface 61 and the gauge corner 62 of the rail 60, and the rail 60 in the range illuminated by the illumination means 20 are observed and reflected by the top surface 61 and the gauge corner 62. An observation means 30 for detecting the light intensity is attached.
The illumination unit 20 includes an LED 21 that forms a light source and a diffusion plate 22 that diffuses light emitted from the LED 21.
The diffusion plate 22 diffuses the light emitted from the LED 21 so that the top surface 61 and the gauge corner 62 of the rail 60 are illuminated uniformly.
Although only a part of the LED 21 is shown in the figure, the LED 21 is disposed so that light is uniformly diffused over the entire surface of the diffusion plate 22.

As shown in FIG. 3, the diffusion plate 22 is formed in an approximately L shape in accordance with the shape of the opposing rail 60, and the interval between the rail 60 is the same at each portion facing the rail 60. There is no variation in the intensity of light applied to the rail 60.
Further, since the diffusion plate 22 is also disposed at a position facing the gauge corner 62, the portion of the housing portion 11 where the diffusion plate 22 is disposed protrudes downward so as to cover the diffusion plate 22 from the outside.

In addition, although LED was used as a light source, it is not restricted to this, You may use a lamp | ramp and a laser.
Further, it may be irradiated with polarized light, or may be irradiated with light of a specific wavelength, and the intensity of the irradiated light can be arbitrarily set.
As the observation means 30, which will be described later, an appropriate observation means 30 is selected according to the light source conditions.

An observing means 30 is provided in a portion of the housing portion 11 in front of the illumination means 20.
The observation means 30 is a two-dimensional CCD camera capable of converting the intensity of incident light into an electrical signal. The observation means 30 observes the top surface 61 of the rail 60 and the second observation means 32 observes the gauge corner 62. Is provided.
As shown in FIG. 1, the first observation means 31 and the second observation means 32 each take an image of an observation site located within the range illuminated by the illumination means 20, and the obtained image is sent to the control device 14. It is designed to output.

Further, the first observation means 31 and the second observation means 32 are each attached so as to desire the observation site from an oblique direction.
In FIG. 1, the observation directions of the first observation means 31 and the second observation means 32 are indicated by straight lines extending from the respective observation means to the rail 60.
Here, the observation means 30 is attached so as to perform observation at an angle of 30 ° with respect to the observation region.
For this reason, the location which arrange | positions the 2nd observation means 32 in the accommodating part 11 becomes the shape which protruded to the side.

The angle at which the observation site is desired is not limited to 30 °, and may be any angle as long as observation is possible.
In addition, the position of the illumination unit 20 and the position of the observation unit 30 are preferably set so that light does not directly enter the observation unit 30 from the illumination unit 20.
In addition, although the two-dimensional CCD camera is used as the observation means, an image pickup means of other methods may be used.
For example, a two-dimensional CMOS camera may be used, or a one-dimensional line sensor may be used to process two-dimensional observation results into one-dimensional data as will be described later.
Further, although the first observation means 31 and the second observation means 32 are used, it is possible to use one observation means that can observe both the top surface 61 and the gauge corner 62.

  The moving means 12 includes a first roller 41 that guides the housing 10 along the top surface 61 of the rail 60, and a second roller that guides the housing 10 along the vertical surface of the rail head located below the gauge corner 62. 42, first urging means 47 that presses the first roller 41 against the top surface 61 by the force of the magnet attracting the rail 60, and the second roller 42 by the force of the magnet attracting the rail 60 And second urging means 43 to be pressed against the second urging means 43.

The first roller 41 is attached to the housing 10 so as to be rotatable about an axis 45 that is orthogonal to the longitudinal direction of the rail 60, which is the traveling direction of the housing 10, and the housing 10 is the top surface of the rail 60. It is possible to move along the longitudinal direction while maintaining a constant distance from 61.
One of the first rollers 41 is provided with a distance sensor 44 for detecting the amount of rotation of the first roller 41. Based on the detection result of the distance sensor 44, the movement distance of the housing 10 is detected. It is possible to do.

A first urging means 47 having a magnet is provided on the housing 10 at a position on the front side or the rear side of the first roller 41.
Both the first roller 41 and the first urging means 47 are opposed to the top surface 61, but the circumferential surface of the first roller 41 is arranged so as to protrude toward the top surface 61 (downward). Therefore, the first urging means 47 is separated from the top surface 61 by a predetermined distance by the circumferential surface of the first roller 41 coming into contact with the top surface 61.
The separated distance is a distance at which the magnetic force is applied to the rail 60, and the first roller 41 is pressed against the top surface 61 by the force that the magnet attempts to attract to the rail 60.

The first roller 41 is pressed against the top surface 61 by the weight of the rail shining surface measuring device 1, but the first urging means 47 reliably maintains the state where the first roller 41 is in contact with the top surface 61. As a result, the housing 10 is in a stable state on the rail 60, and the housing 10 is always arranged at a fixed position with respect to the top surface 61, so that the position of the measuring means relative to the rail 60 is not changed. Can do.
Further, it is possible to prevent the first roller 41 from slipping and to prevent an error from occurring in the distance measurement by the distance sensor 44.

The second roller 42 is attached to the housing 10 so as to be rotatable about a shaft 46 along the vertical direction, and in the longitudinal direction while the housing 10 is disposed at a fixed position with respect to the gauge corner 62. It is possible to move along.
A second urging means 43 having a magnet is provided at a position before and after the second roller 42.
Both the second roller 42 and the second urging means 43 are opposed to the vertical surface of the rail head located below the gauge corner 62, but the peripheral surface of the second roller 42 is on the vertical surface side. Since they are arranged so as to protrude, the second urging means 43 is separated from the vertical surface by a predetermined distance when the peripheral surface of the second roller 42 contacts the vertical surface.
The separated distance is a distance at which the magnetic force reaches the rail 60, and the second roller 42 is pressed against the vertical surface by the force that the magnet attempts to attract to the rail 60.

  By this second urging means 43, the state in which the second roller 42 is always in contact with the vertical surface is maintained, so that the housing 10 is stabilized on the rail 60, and the housing 10 is further against the vertical surface. Therefore, the position of the measuring means with respect to the rail 60 can be prevented from changing.

In addition, it is preferable that the diameter of the first roller 41 is larger and that the width of the peripheral surface is wider, because the stability of the rail shining surface measuring device 1 is increased.
Further, the arrangement, number, size, and the like of the first roller 41 and the second roller 42 can be arbitrarily set.
Moreover, although the roller was used as the moving means 12, as long as the movement along the longitudinal direction of the rail 60 is possible, other methods may be used.
For example, it may be configured to be movable by sliding with respect to the vertical surface of the rail head located below the top surface 61 or the gauge corner 62. In this case, the surface contacting the rail 60 may be subjected to friction. It is preferable to arrange a member for reducing the above.

The control device 14 includes a CPU, a ROM, a RAM, and the like, and performs control of the illumination unit 20 and the observation unit 30, processing for detecting the range of the illumination surface based on the image output from the observation unit 30, and the like.
A display device 16 is provided above the control device, and it is also possible to display information on the detected range of the illuminated surface.

In addition, information on the rotation amount of the first roller 41 from the distance sensor 44 is input to the control device 14, and the movement distance along the longitudinal direction of the rail 60 is grasped based on this information. Can be done.
Based on this information, the observation means 30 performs a control every time a predetermined distance is moved.

Information on the shining surface detected based on the image captured by the observation unit 30 is stored in a storage unit included in the control device 14. The taken image may also be stored.
In addition, the information on the movement distance based on the location where the measurement is started is also stored in the information on the shining surface obtained each time the predetermined distance is moved.
These pieces of information can also be output to the outside by wired or wireless communication means.

In the case where the measurement is performed for the left and right rails 60 in parallel, the measurement range for the left and right rails 60 is set to the same range, and the measurement is performed for each of the left and right rails 60. The information of the shining surface in the same range is obtained for each of the above.
By combining the information on the illumination surfaces of the left and right rails 60 thus obtained, it is possible to obtain information on the illumination surfaces in a predetermined range of one track.
In addition, the control device 14 may acquire position information by a positioning system such as GPS, and may store the information together with information on the detected shining surface. The information on the left and right rails 60 may be stored based on this information. You may make it synthesize | combine.

Next, the measurement of the lighting surface by the rail lighting surface measuring apparatus 1 as described above will be described.
As shown in FIGS. 1 to 3, the rail lighting surface measuring device 1 is placed on the top of the rail 60.
At this time, the vertical position is defined by the first roller 41 being brought into contact with the top surface 61 of the rail 60 by the weight of the rail lighting surface measuring device 1 and the first urging means 47. The position in the orthogonal direction orthogonal to the direction is defined by the second urging means 43 bringing the second roller 42 into contact with the vertical surface of the rail head located below the gauge corner 62.
In this state, the illumination means 20 illuminates the rail 60, and the observation means 30 captures images of the top surface 61 and the gauge corner 62.
The photographed image is output to the control device 14, and the control device 14 processes the image and detects the shining surface.

FIG. 4 shows a method for detecting the shining surface of the parietal surface 61.
The first observation means 31 captures an image with a light receiving means comprising a plurality of light receiving elements arranged in a grid. This light receiving means outputs the received light intensity in each light receiving element as an electric signal.

The first observing means 31 has a storage section so that the vertical and horizontal alignment directions of the light receiving elements arranged in a lattice shape and the longitudinal direction of the rail 60 and the orthogonal direction perpendicular to the longitudinal direction are aligned when taking an image. 11 is attached.
Furthermore, the first observation means 31 is attached to the storage unit 11 so that the light receiving elements located at both ends of the light receiving elements arranged in a lattice shape catch the end of the top surface 61.
Here, when a light receiving device having a light receiving element of 640 × 480 is used and the top surface 61 is photographed, an image in which 480 pixels are arranged in the longitudinal direction of the rail 60 and 640 pixels in the orthogonal direction perpendicular to the longitudinal direction is arranged. It can be taken.

And about the part located in the center of the longitudinal direction of the rail 60 in this image, the row | line | column 71 containing 8 pixels arranged in a line along a longitudinal direction is set sequentially in an orthogonal direction, and in each row | line | column 71 in 8 pixels By calculating the average value of the received light intensity and arranging the average values for 640 columns in the orthogonal direction of the columns 71, the one-dimensional observation data along the orthogonal direction in the predetermined region 72 on the top surface 61 of the rail is obtained. .
Thereafter, the average value of each calculated column 71 is compared with a threshold value, and it is determined whether or not the portion corresponding to the column 71 is a shining surface, and the results are arranged in the arrangement order of the columns 71 in the orthogonal direction. The data of the range of the one-dimensional illumination surface along the orthogonal direction of the predetermined area 72 on the top surface 61 of the rail is obtained.

FIG. 5 shows a method of detecting a shining surface for the gauge corner 62.
Similarly to the first observation means 31, the second observation means 32 also takes an image with a light receiving means comprising a plurality of light receiving elements arranged in a lattice pattern.

In the image photographed by the second observation means 32, adjacent areas 73 are sequentially set along the orthogonal direction orthogonal to the longitudinal direction of the rail 60 for the gauge corner 62 portion.
The size of this area is 8 pixels × 8 pixels.
In addition, the position of the region 73 in the longitudinal direction of the rail preferably coincides with the position where the shining surface is detected on the top surface 61.

Note that the range of the image captured by the second observation means 32 is wider than the gauge corner 62 and includes the top surface 61 and the vertical surface of the rail head side surface. In order to set the area 73, it is determined in advance at which position in the image how the area 73 is to be set.
That is, since the arrangement of the second observation means 32 with respect to the rail 60 is always constant, the position of each part of the rail 60 in the image is always constant, and the position of the region 73 with respect to the image can be determined in advance. For example, a plurality of regions 73 that are always aligned along the orthogonal direction at the gauge corner 62 can be set simply by applying the setting.
Of course, the gauge corner 62 may be extracted from the image by using a method such as image recognition.

Then, the average value of the received light intensity in 64 pixels included in each of the areas 73 set in this way is calculated, and the average values are arranged in the order in which the areas 73 are arranged. Use observation data.
Thereafter, the calculated average value of each region 73 is compared with a threshold value, and it is determined whether or not the portion corresponding to the region 73 is a shining surface. Data of the range of the one-dimensional illumination surface of the predetermined area at 62 is obtained.

Since the second observation means 32 is arranged so that the gauge corner is caught obliquely from above, when the second observation means 32 takes an image, the vertical and horizontal alignment directions of the light receiving elements arranged in a lattice shape And the longitudinal direction of the rail 60 and the orthogonal direction perpendicular to the longitudinal direction are slightly shifted.
However, in the captured image, if the region 73 of 8 pixels × 8 pixels is set to be adjacent to the gauge corner 62 along the orthogonal direction orthogonal to the longitudinal direction of the rail 60, the alignment direction of the pixels does not matter.
Of course, even if the regions 73 are sequentially set along the pixel alignment direction so that the alignment direction of the regions 73 does not coincide with the orthogonal direction, there is no problem because the observation result is not greatly affected.
In addition, when the second observation means 32 captures an image, the light receiving elements arranged in a lattice shape are stored so that the longitudinal and lateral alignment directions are aligned with the longitudinal direction of the rail 60 and the orthogonal direction perpendicular to the longitudinal direction. You may attach to the part 11. FIG.
Further, the detection of the shining surface at the gauge corner 62 may be performed using an average value of a predetermined number of images arranged in a row, similarly to the detection of the shining surface at the top surface 61.

  According to the detection of the shining surface by the rail shining surface measuring apparatus 1 as described above, it is possible to prevent an error from occurring by the measurer and to accurately measure the shining surface of the rail 60, and to measure the measurer in the measurement. The burden can be reduced.

The control device 14 performs the above-described photographing and the detection process of the shining surface every time it moves a predetermined distance based on the information of the movement distance obtained based on the distance sensor, and the position information such as the obtained data and the movement distance is controlled by the control device. 14 storage means.
Further, the obtained data can be displayed on the display device 16 of the control device 14 or transmitted to an external device for display.
That is, the control device 14 serves as a shining surface detecting unit that detects the range of the shining surface at the top surface 61 and the gauge corner 62 from the observation result by the observing unit 30.
Note that the control device 14 may have only a function of collecting observation results from the observation means 30 and transmitting the observation results to the outside, and the external device may perform a process of detecting the illumination surface.

FIG. 6 shows an example of a data display method.
FIG. 6A shows a display screen that synthesizes and displays information on the illumination surface obtained by measuring each of the two rails 60 in one track.
In this display, in order from the top, the display 81 showing the shining surface of the top surface 61 of one rail 60, the display 82 showing the shining surface of the gauge corner 62 of one rail 60, and the shining surface of the gauge corner 62 of the other rail 60. And a display 84 showing the shining surface of the top surface 61 of the other rail 60.

In order to create a display as shown in FIG. 6A, first, the same measurement range is measured with the left and right rails 60.
Since the rail lighting surface measuring device 1 is moved by inserting and pushing a push rod on one side, the moving direction of the rail lighting surface measuring device 1 is reversed between the left and right rails 60. The starting point of the measurement range on the rail 60 and the end point of the measurement range on the other rail 60 are combined so as to match.
In addition, when the control device 14 is able to acquire position information by a positioning system such as GPS and stores it together with the detected information on the shining surface, the geographical position of the information on the left and right rails 60 is determined. By matching in the horizontal axis direction, a display as shown in FIG. 6A can be obtained.

FIG. 6B schematically shows a part of the display shown in FIG.
In each of the displays 81 to 84, the vertical axis direction is the orthogonal direction of the rail 60, and the range of the illuminated surface and the position in the orthogonal direction are indicated by vertical lines with respect to the illuminated surface information at each measurement location.
Information on each measurement point indicated by the vertical line is continuously displayed in the horizontal axis direction in the order of the measurement position.
Thereby, the state of transition of the shining surface along the longitudinal direction of the rail 60 can be known at a glance, and can be utilized for track maintenance.

In addition, although one light receiving element (pixel) and one section correspond to the observation means, a plurality of light receiving elements correspond to one section, and the observation result in the section is included in the section. An average value of the intensity of light received by the received light receiving element may be used.
Further, the threshold value for detecting the shining surface may be changed according to the condition.
Moreover, the distance distance for photographing can be arbitrarily set.
Further, a shining surface may be detected from an image obtained by converting a monochrome image photographed by a monochrome photographing camera or a color image photographed by a color photographing camera into monochrome, or a shining surface is detected from a color image. You may do it. In the case of detecting the shining surface from the color image, the detection of the shining surface in consideration of the color enables detection with higher accuracy.
Alternatively, two rail lighting surface measuring devices 1 described above may be connected so that the left and right rails 60 can be observed simultaneously by observing the left and right rails 60 respectively.

Further, when the rail lighting surface measuring device 1 is moved along the longitudinal direction of the rail 60, the measuring surface is moved by being pushed by the pusher 50, but the rail lighting surface measuring device 1 is moved on the rail 60. May be able to run on its own.
In this case, the first roller 41 and the second roller 42 are configured to be rotationally driven by a motor.
For example, a motor is provided in the vicinity of one of the first rollers 41, and a drive mechanism that rotates the first roller 41 by transmitting the rotation of the drive shaft of the motor to the first roller 41 is provided.
As a driving mechanism for transmitting the driving force of the motor to the first roller 41, a pulley is provided on the driving shaft of the motor and the shaft of the first roller 41, and a mechanism for transmitting the driving force via a belt wound around the pulley, Any mechanism such as a mechanism using a sprocket and a chain or a mechanism using a gear may be used.
The operation of the motor is controlled by the control device 14. For example, after detecting the shining surface at a certain point, the motor is operated to run, and the next shining surface is detected based on the detection result of the distance sensor 44. Control to stop the motor operation based on arrival at the detection point is performed.
Further, it may be configured by a mechanism including a stepping motor and a gear, and the control device 14 may be allowed to travel a predetermined distance by controlling the amount of rotation of the motor.

DESCRIPTION OF SYMBOLS 1 Rail shining surface measuring device 12 Moving means 14 Control apparatus (shining surface detection means)
20 illumination means 30 observation means 41 first roller 42 second roller 43 second urging means 44 distance sensor (movement distance detection means)
60 Rail 61 Top surface 62 Gauge corner

Claims (5)

In the rail lighting surface measuring device provided with the measuring means for measuring the lighting surface of the rail,
The measuring means includes
Lighting means for illuminating the top surface and gauge corner of the rail;
An observation means for observing a range illuminated by the illumination means, and detecting an intensity of light reflected from the top surface and the gauge corner;
A shining surface detecting means for detecting a range of the shining surface at the top surface and the gauge corner from the observation result by the observing means;
Equipped with a,
The illumination surface detection means includes
The top surface and the gauge corner are divided into a plurality of sections set in a lattice shape so as to be aligned along the longitudinal direction of the rail and the orthogonal direction perpendicular to the longitudinal direction, and the light reception intensity by the observation means in each section Detecting the shining surface based on
The average value of the received light intensity in the predetermined number of the sections arranged in one row along the longitudinal direction is calculated for each of the plurality of rows arranged in the orthogonal direction, and each average value is compared with a threshold value. A rail lighting surface measuring device that detects a range of the lighting surface in the orthogonal direction by detecting whether or not a portion corresponding to the row in the rail is a lighting surface. The illumination surface detection means includes
In the detection of the shining surface at the gauge corner, the average value of the received light intensity in the section included in the predetermined number of sections in the longitudinal direction and the predetermined number of sections in the orthogonal direction is measured from the lower end to the upper end of the gauge corner. Each of the plurality of regions arranged in parallel, and comparing each average value with a threshold value to detect whether or not a portion corresponding to the region in the rail is a shining surface. The rail illumination surface measuring device according to claim 1 , wherein a range of the surface is detected. The observation means includes
A plurality of light receiving elements arranged in a lattice shape,
3. The rail illumination surface measuring apparatus according to claim 1, wherein one of the light receiving elements corresponds to one of the sections. Moving means for moving the measuring means along the longitudinal direction;
A moving distance detecting means for detecting a moving distance of the measuring means along the longitudinal direction;
With
The rail lighting surface measuring apparatus according to any one of claims 1 to 3 , wherein the lighting surface is measured every time the measuring means moves a predetermined distance. Comprising a housing on which the measuring means is mounted;
The moving means is provided in the casing, and the measuring means can be moved by making the casing movable.
The moving means is
A first roller that is disposed at a position facing the parietal surface of the housing, is rotatable about an axis that is orthogonal to the longitudinal direction and is horizontal, and a peripheral surface abuts on the parietal surface;
The housing is arranged at a position facing the vertical surface of the rail head located below the gauge corner, is rotatable about an axis along the vertical direction, and a circumferential surface is in contact with the vertical surface. Two rollers,
A magnet is disposed at a position facing the vertical surface in a state where the second roller is in contact with the vertical surface, and is disposed at a position separated from the vertical surface within a range in which the magnetic force of the magnet reaches the rail. The rail lighting surface measurement device according to claim 4 , further comprising: an urging unit that urges the housing in a direction in which the second roller is pressed against the vertical surface by a magnetic force.