JP2019052864A - Core coordinate measurement device and core coordinate measurement method - Google Patents

Abstract

To provide a core coordinate measurement device and a core coordinate measurement method for easily and accurately measuring a core coordinate of a column being a measurement object.SOLUTION: A survey point measurement section 202 measures a coordinate of a front center survey point by a non-prism mode of a surveying machine. A vector calculation section 203 calculates a columnar direction unit vector. An angle calculation section 204 calculates an angle formed by a collimating direction unit vector from a mechanical point of the survey machine to the front center survey point and the columnar direction unit vector. A first rear surface point calculation section 205 calculates a coordinate of a first rear surface center point that is extended in a direction of the collimating direction unit vector from the front center survey point so as to be crossed with a rear surface of a column. A second rear surface point calculation section 206 calculates a coordinate of a second rear surface center point that is extended in a direction vertical to a direction of the columnar direction unit vector from the front center survey point so as to be crossed with the rear surface of the column. A core coordinate calculation section 207 calculates a coordinate of a core of the column at the front center survey point on the basis of a coordinate of the front center survey point and a coordinate of the second rear surface center point.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a core coordinate measuring apparatus and a core coordinate measuring method.

  Conventionally, a surveying instrument (total station) has been used to measure three-dimensional coordinates (also simply referred to as coordinates) of an object to be measured. The surveying instrument collimates a dedicated target (for example, a reflecting prism) to measure the coordinates of the measurement object on which the target is installed, and the surveying instrument telescope without using the dedicated target. And a non-prism mode for measuring the coordinates of the measured object. In general, the prism mode has higher measurement accuracy than the non-prism mode. Therefore, the prism mode is used when highly accurate coordinates are required.

  However, in the prism mode, it is necessary to set the target on the measurement object before the measurement. For this reason, it takes time and there is a possibility that the target installation position may be shifted. Furthermore, when the measurement object is high, there is a problem that it is difficult for the surveyor to install the target.

  Therefore, there is a technique for measuring the coordinates of the measurement object in the non-prism mode. For example, Japanese Unexamined Patent Application Publication No. 2014-020060 (Patent Document 1) discloses a system that measures the three-dimensional coordinates of a measurement object with a single surveying instrument without installing a target on the measurement object. . This system collimates each of the two surface center points on the surface center line existing at the center of the left and right edges of the pile surface, which is the object to be measured, and measures the distance in the non-prism mode of the surveying instrument. The three-dimensional coordinates of the surface center point are each measured. Then, the core coordinates of the pile are calculated using the three-dimensional coordinates of the two surface center points. When calculating the core coordinates of the pile, when the surveyor measures the three-dimensional coordinates of the surface center point with the surveying instrument, the center of the pile image that appears to be the telescope of the surveying instrument is drawn on the focusing screen of the telescope Adjust the telescope so that the left and right edges of the stake image appear equidistant from the center of the reference scale according to the center of the reference scale, and after adjustment, read the scale values of the reference scale corresponding to the left and right ends of the stake image. input. The scale value is converted into the viewing angle (2α) of the surface center point by a function or table prepared in advance. Then, among the three-dimensional coordinates of the surface center point, the distance L from the machine reference point to the surface center point, the elevation angle θ, the converted viewing angle α, and the predefined mathematical formula are used to correspond to the surface center point. Calculate the core coordinates of the pile. As a result, a single surveying instrument can calculate the core coordinates of the piles in the non-prism mode, and accurately manage the inclination of the straight piles and the inclined piles.

  Japanese Unexamined Patent Application Publication No. 2017-102099 (Patent Document 2) discloses an optical device. In this optical device, the coordinates of the reference point of the optical device and one of the left and right reference marks (for example, vertical lines) are aligned with the edge of the cylindrical structure, and the optical axis of the telescope is positioned on the surface of the cylindrical structure. In this state, the center coordinates of the cylindrical structure are calculated using the coordinates of the collimation point on the cylindrical structure visible on the optical axis and the opening angle from the optical axis to the reference mark. Thereby, the center coordinates of the large-diameter cylindrical structure can be obtained.

  Japanese Unexamined Patent Publication No. 2000-321060 (Patent Document 3) discloses a method for measuring a cylindrical feature in surveying. In this measuring method, an observation point on the surface of the center of the cylindrical shape in the width direction is collimated by a ranging finder, and an oblique distance D as an internal method is obtained, and an internal horizontal distance HD is obtained by calculation. Then, by collimating the tangent t direction of the cylindrical feature with a distance measuring finder, the horizontal angle Hθ2 up to the tangent is obtained and the radius r of the cylindrical feature is obtained by calculation. Then, a target horizontal distance HDO between the distance measuring horn and the horizontal center point of the cylindrical feature and a target oblique distance DO between the distance measuring horn and the oblique center point of the cylindrical feature are obtained. Accordingly, the target horizontal distance to the center of the cylindrical feature such as a utility pole or a tree, the target oblique distance, and the coordinates of the measurement coordinate point of the cylindrical feature can be easily and accurately measured.

  JP-A-2003-106838 (Patent Document 4) discloses a surveying instrument. When the position of the center point Pt of the cylinder C that cannot be directly observed is obtained, the surveying instrument Ts performs only angle measurement on both side ends P1 and P2 of the cylinder C, and any one except for both side ends P1 and P2. Angle measurement and distance measurement are performed on two measurement points P. Then, the surveying instrument Ts uses the distance D to the measurement point P and the horizontal angle Tp = (T1 + t) of the measurement point P, and the horizontal angle T1 of the left end P1 and the horizontal angle T2 = (T1 + t2) of the right end P2. The position of the center point Pt of the cylinder C is calculated. Thereby, the center point position of the cylinder can be accurately obtained.

  Japanese Unexamined Patent Publication No. 2013-217807 (Patent Document 5) discloses a laser surveying apparatus. This laser surveying instrument 1 measures the angle by collimating the left and right ends of the utility pole 2, calculates the center angle from the two angles measured, aligns the collimation to this angle, Measure distance. Next, the laser surveying device 1 calculates the radius of the utility pole 2 from the distance data and the angle measurement data that have been measured, and further measures the distance of other parts of the utility pole 2 in the same direction, and from these differences The inclination and displacement amount of the utility pole 2 are calculated. The angle of the structure is measured by the laser surveying instrument 1 at the re-tip of the corner, and the distance is measured by moving the collimator to the inside of the re-tip of the corner. Thereby, it is supposed that the inclination of the cylindrical structure such as the electric pole and the chimney, the state of the bending, the corner of the structure, etc. can be appropriately measured.

JP 2014-020060 A JP 2017-102099 A JP 2000-32060 A JP 2003-106838 A JP 2013-217807 A

  However, in the technique of Patent Document 1, it is necessary for the surveyor to visually read the scale value of the reference scale by aligning the center of the pile image with the center of the reference scale, and there is a human measurement error in reading the scale value. It can happen. For example, as shown in FIG. 18, when the reference scale 1800 is visually read, since the reference scale 1800 has a plurality of concentric circles, the plurality of concentric circles and the left and right edges 1801a and 1801b of the pile image 1801 are visually confused. Misreading of the scale value n is likely to occur. For example, depending on whether the surveyor reads the scale value n as the first scale value n1 or the second scale value n2 larger by 1 memory width than this, the calculated viewing angle 2α (opening angle) is The first viewing angle 2α1 or a larger second viewing angle 2α2 is obtained, and the calculated radius r of the pile 1802 is the first radius r1 or the second radius r2 larger than the first radius r1. As described above, there is a problem in that the radius r of the calculated pile 1802 varies due to a mistake in reading one memory width by visual observation, and eventually the measurement error of the core coordinates of the final pile 1802 increases. Further, the reference scale 1801 can improve the accuracy of the calculated viewing angle 2α (opening angle) as the memory width becomes finer, while the scale value n read by the surveyor from the reference scale 1801 becomes too fine. Therefore, it is difficult to read visually, and there is a limit to measurement accuracy. Moreover, in the technique of patent document 1, since a surveyor reads the scale value of a pile image visually with a reference scale, it is easy to produce optical errors, such as lens distortion, and several numerical formulas for calculating the core coordinate of a pile. Therefore, there is a problem that a calculation error may occur.

  In the technique of Patent Document 2, it is necessary for the surveyor to visually match the reference marks of the telescope with the left and right edges of the cylindrical structure. Further, the technique of Patent Document 3 requires a surveyor to visually collate the tangential t direction of a cylindrical feature with a distance measuring instrument. Moreover, the technique of patent document 4 requires the operation | work which a surveyor measures only an angle measurement visually with respect to the both ends of a cylinder with a surveying instrument. Moreover, the technique of patent document 5 requires the operation | work which a surveyor measures by aligning a collimation visually with the left and right ends of a utility pole with a laser surveying apparatus. That is, the technique of Patent Literature 2-5 requires a human work by a surveyor's visual observation, and there is a problem that human measurement errors are likely to occur.

  Therefore, the present invention has been made to solve the above-described problems, and a core coordinate measuring apparatus and a core that can easily and accurately measure the core coordinates of a column (cylinder) of a measurement object. An object is to provide a coordinate measurement method.

  As a result of extensive research, the present inventor has completed a novel core coordinate measuring apparatus and core coordinate measuring method according to the present invention. That is, a core coordinate measuring apparatus according to the present invention includes a survey point measuring unit, a vector calculating unit, an angle calculating unit, a first back point calculating unit, a second back point calculating unit, and a core coordinate calculating unit. And comprising. The survey point measurement unit measures the coordinates of the front center survey point located at the center of the left and right edges of the front of the cylinder in the non-prism mode of the survey instrument as seen from the telescope of the survey instrument. The vector calculation unit calculates a cylinder direction unit vector that is parallel along the axial direction of the cylinder. The angle calculation unit calculates an angle formed by the collimation direction unit vector from the machine point of the surveying instrument to the front center survey point and the cylindrical direction unit vector. The first back surface point calculation unit extends from the front center survey point in the direction of the collimation direction unit vector based on the coordinates of the front center survey point, the angle, and the diameter of the cylinder. Calculate the coordinates of the first back center point that intersects the back of the cylinder. The second back surface point calculation unit is perpendicular to the direction of the cylindrical direction unit vector from the front center survey point based on the coordinates of the first back surface center point, the angle, and the collimation direction unit vector. The coordinates of the second rear center point extending in the direction of and intersecting the rear surface of the cylinder are calculated. The center coordinate calculation unit calculates the coordinates of the center of the cylinder at the front center survey point based on the coordinates of the front center survey point and the coordinates of the second back center point.

  The core coordinate measurement method according to the present invention includes a survey point measurement step, a vector calculation step, an angle calculation step, a first back surface point calculation step, a second back surface point calculation step, a core coordinate calculation step, Is provided. Each step of the core coordinate measuring method corresponds to each part of the core coordinate measuring apparatus.

  ADVANTAGE OF THE INVENTION According to this invention, it becomes possible to measure the core coordinate of the cylinder of a measuring object easily and with high precision.

1 is a schematic diagram of a core coordinate measuring apparatus according to the present invention. It is a functional block diagram of the core coordinate measuring apparatus which concerns on this invention. It is a flowchart for showing the execution procedure of the core coordinate measuring method which concerns on this invention. A diagram (FIG. 4A) showing an example of moving a reference mark of a captured image of a telescope to the center of the left and right edges of the front of a cylinder, and a diagram (FIG. 4B) showing an example of a concentric circle scale and a crosshair scale. is there. It is a figure which shows an example of the relationship between a front center surveying point in case a cylinder is a diagonal pile, and a front center auxiliary point. It is a figure which shows an example of the relationship between the 1st back surface point, 2nd back surface point, and the core of a cylinder when a cylinder is a slant pile. It is a figure which shows an example of the relationship between a front center surveying point in case a cylinder is a vertical pillar, and the unit vector of a Z direction. It is a figure which shows an example of the relationship between the 1st back surface point, 2nd back surface point, and the center of a cylinder when a cylinder is a vertical column. FIG. 9 is a diagram (FIG. 9A) showing an example of a PVC pipe and a surveying instrument when the PVC pipe is a slant pile in Example 1, and a diagram (FIG. 9B) showing an example of a captured image of the telescope in Example 1. . It is a figure which shows an example of the measurement result in case Example 1 a PVC pipe is a slant pile. FIG. 11 is a diagram (FIG. 11A) illustrating an example of a PVC tube and a surveying instrument when the PVC tube is a vertical column in Example 1, and a diagram (FIG. 11B) illustrating an example of a captured image of a telescope in Example 1. . It is a figure which shows an example of the measurement result in case Example 1 a PVC pipe is a vertical pillar. FIG. 13A shows an example of a large PVC pipe and a surveying instrument when the large PVC pipe is a slant pile in Example 2 (FIG. 13A), and FIG. 13B shows an example of a photographed image of a telescope in Example 2; It is. In Example 2, it is a figure which shows an example of the measurement result in case a large-sized polyvinyl chloride pipe is a slant pile. FIG. 15A shows an example of a large PVC pipe and a surveying instrument when the large PVC pipe is a vertical column in Example 2 (FIG. 15A), and FIG. 15B shows an example of a photographed image of a telescope in Example 2; It is. In Example 2, it is a figure which shows an example of the measurement result in case a large-sized PVC pipe is a vertical pillar. FIG. 17A shows an example of extracting lines on the left and right edges of the front of the cylinder from the captured image of the telescope, and the difference between the center of the lines on the left and right edges of the front of the cylinder and the reference mark of the captured image. It is a figure (FIG. 17B) which shows an example in the case of calculating. It is a figure which shows an example of the human measurement error by reading of the scale value in a prior art.

  Embodiments according to the present invention will be described below with reference to the accompanying drawings for understanding of the present invention. In addition, the following embodiment is an example which actualized this invention, Comprising: The thing of the character which limits the technical scope of this invention is not.

  The core coordinate measuring apparatus 1 (which may be referred to as a core coordinate measuring system) according to the present invention includes a surveying instrument 10 and a terminal device 11 as shown in FIG. Moreover, the cylinder 12 exists as a measuring object.

  The surveying instrument 10 is generally used at a construction site or a civil engineering site, and includes a main body 100 and a (collimation) telescope 101. The main body 100 is configured to be rotatable in the horizontal direction. The telescope 101 is provided so as to be rotatable in the vertical direction with respect to the main body 100. Therefore, the telescope 101 can rotate in the horizontal direction and the vertical direction with respect to the surveying instrument 10.

  The telescope 101 has the function of a digital camera, and can take an image of an object in the observation direction (optical axis direction) of the telescope. The digital camera includes a CCD camera element installed in parallel to the optical axis of the lens of the telescope 101. Since the center of the captured image of the CCD camera element coincides with the optical axis of the telescope, The center position coincides with the measurement position on the surface of the object measured by the telescope.

  When the telescope 101 is collimated on the cylinder 12 and a measurement command is input to the surveying instrument 10, the surveying instrument 10 irradiates the cylinder 12 with scanning light from the telescope 101, and the scanning light is reflected from the cylinder 12. Then, it enters the telescope 101 again. The incident reflected light is converted into a received light signal by the light receiving element of the surveying instrument 10. The surveying instrument 10 detects the horizontal angle and vertical angle of the telescope 101 with an angle detector. Then, the light wave distance meter of the surveying instrument 10 measures the oblique distance from the surveying instrument 10 to the cylinder 12 using the received light signal. The lightwave distance meter has a prism mode using a target and a non-prism mode not using a target. In the present invention, the non-prism mode is basically used. Based on the detected horizontal and vertical angles of the telescope 101 and the measured oblique distance, the main body 100 (metering side) of the surveying instrument 10 coordinates (three-dimensional coordinates) of the survey point (collimation point) of the cylinder. Value). The coordinates of the survey point of the cylinder are calculated with reference to the coordinates of the machine point of the surveying instrument 10, for example.

  The terminal device 11 is a commonly used computer, and includes a storage unit, an input unit such as a keyboard and a mouse, and an output unit such as a liquid crystal display. The terminal device 11 includes a mobile terminal device with a touch panel, a tablet terminal device, and a wearable terminal device. The terminal device 11 is communicably connected to the surveying instrument 10 in a wired or wireless manner, receives data from the surveying instrument 10 and displays it, or sends a command to the surveying instrument 10 to operate the surveying instrument 10. I can do it.

  The cylinder 12 is assumed to be, for example, an inclined pile (an upright shaft) standing obliquely with respect to the ground or a vertical column (an upright pile) standing almost vertically. The cylinder 12 can collimate the central point in the axial direction of the cylinder 12 from any angle in the horizontal direction and the vertical direction. Calculate the coordinates.

  The surveying instrument 10 and the terminal device 11 incorporate a CPU, ROM, RAM, and the like (not shown), and the CPU executes a program stored in the ROM, for example, using the RAM as a work area. With respect to each unit described later, the function of each unit is realized by the CPU executing a program.

  Next, the configuration and execution procedure according to the embodiment of the present invention will be described with reference to FIGS. First, the surveyor goes to the site where the cylinder 12 of the measurement object is present with the core coordinate measuring device 1 and installs the surveying instrument 10 of the core coordinate measuring device 1. Then, the surveyor operates to measure the coordinates of the machine point of the surveying instrument 10, and the machine point measuring unit 201 of the core coordinate measuring apparatus 1 uses the coordinates (Xm, Ym, Zm) of the machine point M of the surveying instrument 10. ) Is measured (FIG. 3: S101).

  There is no particular limitation on the method by which the machine point measuring unit 201 measures the coordinates of the machine point M of the surveying instrument 10. For example, in the area where the surveying instrument 10 is installed, a surveyor collimates and measures two known points, respectively, and the mechanical point measuring unit 201 determines each of the two known points centering on the surveying instrument 10. The coordinates of the machine point M of the surveying instrument 10 can be measured based on the distance and the azimuth angle. Other known methods may be used. By measuring the coordinates of the machine point M of the surveying instrument 10, the coordinates of the front center survey point and the front center auxiliary point described later can be calculated based on the coordinates of the machine point M of the surveying instrument 10.

  Now, when the mechanical point measuring unit 201 completes the processing, the survey point measuring unit 202 of the core coordinate measuring apparatus 1 is a front surface located at the center of both the left and right edges of the front surface of the cylinder 12 when viewed from the telescope 101 of the surveying instrument 10. The coordinates (Xp1, Yp1, Zp1) of the central survey point P1 are measured (ranging) in the non-prism mode of the surveying instrument 10 (FIG. 3: S102).

  There is no particular limitation on the method by which the survey point measuring unit 202 measures the coordinates of the front center survey point P1. For example, when the cylinder 12 is a slant pile, as shown in FIG. 4A, the surveyor looks at the front of the cylinder 12 with the telescope 101 and only a predetermined distance r from the tip (capillary) of the cylinder 12 toward the lower side of the cylinder 12. Collimate a distant position. There is no particular limitation on the position P1. Then, the surveyor moves the reference mark 401 indicating the center (optical axis, focus) of the captured image 400 of the telescope 101 to the center of the left and right edges 402 and 403 on the front of the cylinder 12 while viewing the position with the telescope 101. .

  When the reference mark 401 is moved to the center of both the left and right edges 402 and 403 on the front surface of the cylinder 12, the reference mark 401 is separated from the left edge 402 on the front surface of the cylinder 12 to the center point 404 due to the characteristics of the cylinder 12. What is necessary is just to move to the position where the distance a from the right edge 403 of the front surface of the cylinder 12 to the center point 404 becomes equal. The center point 404 becomes the front center survey point P1. In addition, in FIG. 4A, although the cylinder 12 is a case of a diagonal pile, even if the cylinder 12 is a case of a vertical pillar, it is the same.

  Here, when the surveyor moves the reference mark 401 to the front central survey point P1, for example, as shown in FIG. 4B, the lens of the telescope 101 or the display unit of the surveying instrument 10 that displays the captured image of the telescope 101 is displayed. Alternatively, a concentric circle scale 405 having a plurality of concentric circles may be provided as the center of the reference mark 401, and the reference mark 401 may be moved to the front center survey point P1 using the concentric circle scale 405 as a guide. Further, instead of the concentric circle scale 405, a cross hair scale 406 may be provided in which a cross hair is provided as the center of the reference mark 401 and a plurality of scales are provided on the cross hair.

  Then, when the surveyor moves the reference mark 401 to the front center survey point P1, and inputs a measurement command to the core coordinate measuring device 1 (or surveying instrument 10) using the survey key, the survey point measuring unit 202 is Using the point M as an origin, the horizontal angle H1 and the vertical angle V1 of the telescope 101 are measured with an existing angle detector, and then the non-prism type light wave rangefinder of the surveying instrument 10 is used to measure the position of the cylinder 12 from the surveying instrument 10. The oblique distance L1 to the front center survey point P1 is measured. Then, the survey point measuring unit 202 calculates the coordinates (Xp1, Yp1, Zp1) of the front center survey point P1 based on the horizontal angle H1 and vertical angle V1 of the front center survey point P1 and the oblique distance L1.

  Note that the horizontal angle H measured by the surveying instrument 10 is, for example, a direction rotating in the Y direction (true west) with the X direction (for example, true north) being 0 degrees in the coordinate system of three-dimensional coordinate values. Defined as a positive value. The vertical angle V measured by the surveying instrument 10 is defined as a positive value in the coordinate system of three-dimensional coordinate values, with the Z direction (for example, directly above) being 0 degrees and the direction rotating from above to below. .

  When the survey point measurement unit 202 completes the process, the vector calculation unit 203 of the core coordinate measuring apparatus 1 calculates a cylinder direction unit vector es that is parallel along the axial direction 12a of the cylinder 12 (FIG. 3: S103). .

  There is no particular limitation on the method by which the vector calculation unit 203 calculates the cylinder direction unit vector es. For example, the processing of the vector calculation unit 203 is divided into a case where the column 12 is a diagonal pile and a case where the column 12 is a vertical column. I can do it. Therefore, first, the processing of the vector calculation unit 203 when the cylinder 12 is a diagonal pile will be described.

  As shown in FIG. 5, when the cylinder 12 is a slant pile, the column direction unit vector es is different for each cylinder 12 because the fall is different for each cylinder 12. Therefore, the vector calculation unit 203 operates the telescope 101 of the surveying instrument 10 either up or down in the Z direction from the front central survey point P1, and is different from the front central survey point P1 when viewed from the telescope 101. The front center auxiliary point P2 located at the center of the left and right edges of the front surface of the cylinder 12 is measured by the non-prism mode of the surveying instrument 10, and the front center survey point P1 and the front center auxiliary point P2 are measured. Based on this, the cylindrical direction unit vector es is calculated.

  That is, since the direction vector from the front center auxiliary point P2 to the front center survey point P1 is parallel along the axial direction 12a of the cylinder 12, the cylinder direction is determined using the front center auxiliary point P2 and the front center survey point P1. The unit vector es is obtained. Thereby, the cylinder direction unit vector es corresponding to the axial direction 12a (falling) of the cylinder 12 can be easily measured by measuring two different points P1 and P2 located at the center of both left and right edges of the front surface of the cylinder 12. Can be calculated.

  Here, when the front center survey point P1 is located above the cylinder 12, the surveyor operates the telescope 101 downward to find the center of the left and right edges of the front of the cylinder 12 below the cylinder 12, Similarly to the central survey point P1, the reference mark of the captured image of the telescope 101 is moved to the center of the left and right edges of the front surface of the cylinder 12, and a measurement command is input to the core coordinate measuring apparatus 1 using the survey key. Then, the vector calculation unit 203 measures the horizontal angle H2 and the vertical angle V2 of the telescope 101 with the existing angle detector with the mechanical point M as the origin, and the oblique angle from the surveying instrument 10 to the front center auxiliary point P2 of the cylinder 12. The distance L2 is measured, and the coordinates (Xp2, Yp2, Zp2) of the front center auxiliary point P2 are calculated based on the horizontal angle H2 and vertical angle V2 of the front center auxiliary point P2 and the oblique distance L2.

Next, the vector calculation unit 203 uses the following formulas (1) and (2), the first unit vector e1 from the machine point M to the front center survey point P1, and the machine point M to the front center auxiliary point P2. Of the second unit vector e2.
e1 = P1 / | P1 | (1)
e2 = P2 / | P2 | (2)

  P1 and P2 indicate coordinates constituted by three-dimensional coordinate values, and the machine point M is used as a reference. In the following formulas, the same applies to uppercase alphabets indicating dots. | P1 | indicates a distance (absolute value) from the machine point M to the front center survey point P1. The same applies hereinafter.

Then, the vector calculation unit 203 calculates the cylindrical direction unit vector es by subtracting the second unit vector e2 from the first unit vector e1 using the following equation (3).
es = e1-e2 (3)

  When the front center survey point P1 is located below the cylinder 12, the surveyor searches for the center of the left and right edges of the front of the cylinder 12 above the cylinder 12 and assists the front center. What is necessary is just to measure the point P2.

  Here, it is preferable that the vector calculation unit 203 measures a front center auxiliary point P2 that is a predetermined distance D or more away from the front center survey point P1 along the axial direction 12a of the cylinder 12. The predetermined distance D is set to 1 m, 3 m, and the like, for example. Since the cylinder direction unit vector es becomes more accurate as the distance D between the front center survey point P1 and the front center auxiliary point P2 becomes longer, the center coordinates of the cylinder can be measured with higher accuracy.

  When the vector calculation unit 203 completes the process, the angle calculation unit 204 of the core coordinate measuring apparatus 1 collimates from the machine point M of the surveying instrument 10 to the front center surveying point P1, as shown in FIG. An angle α formed by the direction unit vector ep and the cylindrical direction unit vector es is calculated (FIG. 3: S104).

There is no particular limitation on the method by which the angle calculator 204 calculates the angle α. First, the angle calculation unit 204 calculates the first unit vector e1 as the collimating direction vector ep using the above-described equation (1) and the following equation (4).
ep = e1 (4)

Next, the angle calculation unit 204 calculates the angle α by obtaining the inner product of the collimation direction unit vector ep and the cylindrical direction unit vector es using the following equation (5).
cosα = ep · es (5)

  When the angle calculation unit 204 completes the processing, the first back surface point calculation unit 205 of the core coordinate measuring apparatus 1 performs the coordinates (Xp1, Yp1, Zp1) of the front center survey point P1, the angle α, and the cylinder. Based on the diameter d of 12 (twice the radius), the first back center point Q1 extending from the front center survey point P1 in the direction of the collimation direction unit vector ep and intersecting the back surface of the cylinder 12 The coordinates (Xq1, Yq1, Zq1) are calculated (FIG. 3: S105).

Here, the method by which the first back surface point calculation unit 205 calculates the coordinates of the first back surface center point Q1 is not particularly limited. Since the front edge 600 and the rear edge 601 of the cylinder 12 are parallel, the angle formed by the straight line P1Q1 between the front center survey point P1 and the first rear center point Q1 and the rear edge 601 of the cylinder 12 is an angle. equal to α. Further, the distance between the front edge 600 and the rear edge 601 of the cylinder 12 is equal to the diameter d of the cylinder 12. Therefore, the first back surface point calculation unit 205 calculates the length d1 of the straight line P1Q1 from the angle α and the diameter d of the cylinder 12 using the following equation (6).
d1 = d / √ {1- (cos α) ² } (6)

  The length d1 of the straight line P1Q1 corresponds to the major axis (ellipse major axis) of the elliptical cut surface when the cylinder 12 is cut along the collimation direction unit vector ep at an angle α. The diameter d of the cylinder 12 is stored in advance in the memory of the core coordinate calculation device 1 using, for example, a value measured on site by a surveyor or a value preset in design. Further, the diameter d of the cylinder 12 may be directly calculated from the captured image of the telescope 101 based on the number of pixels on the left and right edges of the front surface of the cylinder 12 in the captured image of the telescope 101 and the pixel size conversion coefficient.

Next, the first back surface point calculation unit 205 uses the following equation (7) to calculate the length d1 of the straight line P1Q1 and the collimation direction unit vector from the coordinates (Xp1, Yp1, Zp1) of the front center survey point P1. The coordinates (Xq1, Yq1, Zq1) of the first rear center point Q1 translated by the inner product value with ep are calculated.
Q1 = P1 + d1 · ep (7)

  When the first back surface point calculation unit 205 completes the processing, the second back surface point calculation unit 206 of the core coordinate measuring apparatus 1 includes the coordinates (Xq1, Yq1, Zq1) of the first back surface center point Q1, and the Based on the angle α and the collimation direction unit vector ep, a second back surface that extends from the front center survey point P1 in a direction perpendicular to the direction of the cylinder direction unit vector es and intersects the back surface of the cylinder 12 The coordinates (Xq2, Yq2, Zq2) of the center point Q2 are calculated (FIG. 3: S106).

Here, the method by which the second back surface point calculation unit 206 calculates the coordinates of the second back surface center point Q2 is not particularly limited. The angle formed by the straight line Q1Q2 between the first back center point Q1 and the second back center point Q2 and the straight line Q2P1 between the second back center point Q2 and the front center survey point P1 is a right angle. The angle formed by the straight line P1Q1 between the survey point P1 and the first back surface center point Q1 and the straight line Q1Q2 between the first back surface center point Q1 and the second back surface center point Q2 is equal to the angle α. Therefore, the second back surface point calculation unit 206 uses the following equation (8) to calculate the cosine of the length d1 of the straight line P1Q1 and the angle α from the coordinates (Xq1, Yq1, Zq1) of the first back surface center point Q1. The coordinates (Xq2, Yq2, Zq2) of the second rear surface center point Q2 translated by the inner product value of the value cosα and the cylinder direction unit vector es are calculated.
Q2 = Q1-d1 · cos α · es (8)

  Then, when the second back surface point calculation unit 206 completes the processing, the core coordinate calculation unit 207 of the core coordinate measuring device 1 determines the coordinates (Xp1, Yp1, Zp1) of the front center survey point P1 and the second center point measurement point P1. Based on the coordinates (Xq2, Yq2, Zq2) of the back center point Q2, the coordinates (Xc1, Yc1, Zc1) of the core C1 of the cylinder 12 at the front center survey point P1 are calculated (FIG. 3: S107).

Here, there is no particular limitation on the method by which the core coordinate calculation unit 207 calculates the coordinates of the core C1 of the cylinder 12. Since the midpoint between the front center survey point P1 and the second back center point Q2 corresponds to the center C1 of the cylinder 12, the center coordinate calculation unit 207 uses the following formula (9) to calculate the front center survey The coordinates (Xc1, Yc1, Zc1) of the core C1 of the cylinder 12 that is the midpoint between the point P1 and the second back surface center point Q2 are calculated.
C1 = (P1 + Q2) / 2 (9)

  Then, the calculated coordinates (Xc1, Yc1, Zc1) of the core C1 of the cylinder 12 are displayed via the output unit of the terminal device 11. Thereby, the surveyor can easily confirm the coordinates of the core C1 of the cylinder 12 at the front center survey point P1.

  As described above, in the present invention, the coordinates of the front central survey point P1 and the front central survey point P2 are measured in the non-prism mode, and the equations at the front central survey point P1 are obtained by using the equations (1) to (9). The coordinates (Xc1, Yc1, Zc1) of the core C1 of the cylinder 12 can be easily calculated. In particular, in the present invention, the surveyor does not visually read the memory width of the scale, and the reference mark in the field of view of the telescope 101 is aligned with the center of the left and right edges of the front surface of the cylinder 12 and measured in the non-prism mode. Since it is good, there is no possibility that a measurement error due to a misreading of the surveyor's scale occurs, and the human measurement error can be minimized. In the present invention, since a simple equation is used, the measurement error is small, which is suitable for high-precision measurement of the coordinates of the core C1 of the cylinder 12.

For the coordinates of the core C1 of the cylinder 12, for example, the lower surface center point S0 (Xs0, Ys0, Zs0) (base end point) of the cylinder 12 is calculated using the length L of the cylinder 12 and the following equation (10). Used to do.
S0 = C1- (Lr) · es (10)

Equation (10) is applied when the front center auxiliary point P2 is located below the front center survey point P1. When the front center auxiliary point P2 is located above the front center survey point P1, the direction of the cylinder direction unit vector es is reversed, and the following equation (11) is obtained.
S0 = C1 + (L−r) · es (11)

  By the way, although the process of the vector calculation part 203 when the cylinder 12 is a diagonal pile was demonstrated above, the process of the vector calculation part 203 when the cylinder 12 is a vertical pillar is demonstrated.

As shown in FIG. 7, when the cylinder 12 is a vertical column, the cylinder 12 stands substantially perpendicular to the ground. Therefore, the cylinder direction unit vector es is assumed to be parallel to the Z direction unit vector ez. I can do it. Therefore, the vector calculation unit 203 calculates the unit vector ez in the Z direction as the cylindrical unit vector es (for example, Xes = 0, Yes = 0, Zes = 1) using the following equation (12) (FIG. 3). : S103).
es = ez (12)

  As a result, when the cylinder 12 is a vertical column, the unit vector ez in the Z direction can be used without measuring the coordinates of the front center auxiliary point P2, thereby reducing the time and effort of the surveyor. .

  In addition, the process after this is the same as the case where the cylinder 12 is a diagonal pile. First, as shown in FIG. 8, the angle calculation unit 204 calculates an angle α between the collimation direction unit vector ep and the cylindrical direction unit vector es (FIG. 3: S104). Here, the angle α is obtained by the inner product of the collimation direction unit vector ep and the cylindrical direction unit vector es using the above equation (5).

  Next, the first back surface point calculation unit 205 extends from the front center survey point P1 in the direction of the collimation direction unit vector ep and intersects the back surface of the cylinder 12 with the coordinates (Xq1, Yq1) of the first back surface center point Q1. , Zq1) is calculated (FIG. 3: S105). Here, the length d1 of the straight line P1Q1 is obtained by the above equation (6), and the coordinates of the first back surface center point Q1 are obtained by the above equation (7).

  Furthermore, the second back surface point calculation unit 206 extends from the front center survey point P1 in a direction perpendicular to the direction of the cylinder direction unit vector es, and coordinates (Xq2) of the second back surface center point Q2 that intersects the back surface of the cylinder 12. , Yq2, Zq2) are calculated (FIG. 3: S106). Here, the coordinates of the second back surface center point Q2 are obtained by the above equation (8). Since the cylinder direction unit vector es is a unit vector in the Z direction, the value of the inner product of the length d1 of the straight line P1Q1, the cosine value cos α of the angle α, and the cylinder direction unit vector es in Equation (8) can be easily obtained. I can do it.

  Then, the core coordinate calculation unit 207 calculates the coordinates (Xc1, Yc1, Zc1) of the core C1 of the cylinder 12 at the front center survey point P1 (FIG. 3: S107). Here, the coordinates of the core C1 of the cylinder 12 are obtained by the above equation (9).

  That is, even if the cylinder 12 is a vertical column, it can be calculated from S104 to S107 using the same formula as in the case where the cylinder 12 is a diagonal pile. In particular, when the cylinder 12 is a vertical cylinder, only the coordinates of the front center survey point P1 are measured in the non-prism mode, and the cylinder at the front center survey point P1 is obtained using the equations (5)-(9) (12). The coordinates (Xc1, Yc1, Zc1) of the 12 cores C1 can be easily calculated. Even in this case, the measurement error becomes small. Furthermore, the lower surface center point S0 (Xs0, Ys0, Zs0) of the cylinder 12 is obtained by using the equation (10) or the equation (11) according to the positional relationship between the front center survey point P1 and the front center auxiliary point P2. Can be calculated.

  In addition, when dividing the process when the cylinder 12 is a diagonal pile and the process when the cylinder 12 is a vertical column, for example, a diagonal pile mode and a vertical column mode are provided, and the surveyor can set the cylinder 12 at the site. Depending on the type, the diagonal pile mode or the vertical column mode may be selected and the processing of the vector calculation unit 203 may be divided.

<Example>
EXAMPLES Hereinafter, although an Example demonstrates this invention concretely, this invention is not limited by this.

<Example 1>
The core coordinate measuring device 1 according to the present invention was designed based on FIGS. 1 to 3, and the core coordinate measuring device 1 of Example 1 was manufactured by combining the surveying instrument 10 and the terminal device 11. Note that the surveying instrument 10 and the terminal device 11 are connected by wireless communication, the surveying instrument 10 transmits data to the terminal device 11 wirelessly, and the terminal device 11 coordinates the coordinates (Xc1, Yc1) of the core C1 of the cylinder 12 based on the data. , Zc1) is calculated.

  First, a polyvinyl chloride pipe (vinyl chloride pipe) having a diameter d of 140 mm and a length L of 1800 mm is prepared as a cylinder 12, and as shown in FIG. 9A, the PVC pipe 12 is stood obliquely with respect to the indoor ground. The PVC pipe 12 was a slant pile. On the other hand, the surveying instrument 10 of the core coordinate measuring apparatus 1 is installed at a position away from the polyvinyl chloride pipe 12 by a predetermined distance, and as shown in FIG. The coordinates of the front center survey point P1 and the plurality of front center auxiliary points P2-1, P2-2, P2-3 are measured by the execution procedure of the present invention, and the core C1 of the PVC pipe 12 at the front center survey point P1 is measured. Coordinates were calculated.

  Here, in order to confirm the measurement accuracy of the calculated coordinates of the core C1 of the PVC pipe 12, the target 90 is set at the center point S0 on the lower surface of the PVC pipe, and the coordinates of the target 90 are measured in the prism mode of the surveying instrument 10. The lower surface center point S0 of the target. On the other hand, the coordinates of the center point S1 of the lower surface of the PVC pipe 12 are calculated from the calculated coordinates of the core C1 of the PVC pipe 12, and set as the lower surface center points S1, S2, and S3 of the measured values. That is, the coordinates of the core C1 of the PVC pipe 12 at the front center survey point P1 were converted into the position of the target 90. Then, by calculating the difference between the coordinates of the lower surface center point S0 of the target and the coordinates of the lower surface center points S1, S2, S3 of the measurement value, the lower surface center points S1, S2, S3 of the measurement value of the measurement result of the present invention. Was deviated from the lower surface center point S0 of the target.

  Further, the plurality of front center auxiliary points P2-1, P2-2, and P2-3 change the distance D from the front center survey point P1 step by step to change the lower surface center points S1, S2, and S3 of the measured values. The influence of the measurement accuracy given by the distance between the front center survey point P1 and the front center auxiliary point P2 was evaluated by calculating for each of the front center auxiliary points P2-1, P2-2, and P2-3.

  As a result, as shown in FIG. 10, at the front center auxiliary point P2-1 having a distance of 1500 mm or more from the front center survey point P1, the coordinates of the lower surface center point S0 of the target and the lower surface center point S1 of the measurement value The difference (S1-S0) from the coordinates was within 2 mm, and it was confirmed that the measurement accuracy was high. Moreover, it has confirmed that a measurement precision became favorable, so that the distance with the front center surveying point P1 became long.

  Next, as shown in FIG. 11A, the PVC pipe 12 was made to stand substantially vertically with respect to the indoor ground, and the PVC pipe 12 was used as a vertical column. The surveying instrument 10 of the core coordinate measuring device 1 is installed at a position away from the PVC pipe 12, and as shown in FIG. 11B, the coordinates of the front central survey point P1 lowered from the upper surface of the PVC pipe 12 by a predetermined distance r. Was measured according to the execution procedure of the present invention, and the coordinates of the core C1 of the PVC pipe 12 at the front center survey point P1 were calculated with the cylindrical unit vector as the Z-direction unit vector.

  Here, when the PVC pipe 12 is a vertical column, the target 110 is installed at the position of the PVC pipe 12 corresponding to the front center survey point P1, the coordinates of the target 110 are measured in the prism mode of the surveying instrument 10, and the target 110 From the coordinates, the coordinates of the core C2 of the PVC pipe 12 in the installation of the target 110 are calculated, and the coordinates of the lower surface center point S0 of the PVC pipe 12 measured in advance are subtracted from the coordinates of the core C2 of the PVC pipe 12, The fall of the pillar by the target was calculated. On the other hand, the column collapse due to the measured value was calculated by subtracting the coordinates of the lower surface center point S0 of the PVC pipe 12 from the coordinates of the core C1 of the PVC pipe 12 at the calculated front center survey point P1. That is, the coordinates of the core C1 of the PVC pipe 12 at the front center survey point P1 were converted into column collapse. Then, by calculating the difference between the falling of the column due to the target and the falling of the column due to the measured value, it was evaluated how far the falling of the column due to the measured value of the measurement result of the present invention was not from the falling of the column due to the target. .

  As a result, as shown in FIG. 12, the difference {(C1-S0)-(C2-S0)} between the column collapse due to the target and the column collapse due to the measured value is within 2 mm, and the measurement accuracy is high. I was able to confirm.

  In addition, in building construction standard specification JASS 6 steel frame construction, the management tolerance e of the fall of the building of height H is set to H / 4000 + 7 mm and 30 mm or less. This is generally inspected on the assumption that the column is standing vertically, and in Example 1, the collapse of the column was confirmed on the assumption that the PVC pipe 12 was a vertical column. .

<Example 2>
The same test and evaluation as in Example 1 were performed outdoors by changing the size of the cylinder. First, a large PVC pipe having a diameter d of 320 mm and a length L of 3842 mm is prepared as the cylinder 12, and as shown in FIG. The PVC pipe 12 was a slant pile. Then, the surveying instrument 10 of the core coordinate measuring apparatus 1 is installed at a position away from the large PVC pipe 12, and as shown in FIG. 13B, the front central surveying is lowered from the upper surface of the large PVC pipe 12 by a predetermined distance r. The coordinates of the point P1 and a plurality of front center auxiliary points P2-1, P2-2, P2-3 are measured by the execution procedure of the present invention, and the coordinates of the core C1 of the large PVC pipe 12 at the front center survey point P1 are determined. Calculated.

  As in Example 1, the measurement accuracy was set at the center point S0 on the lower surface of the large PVC pipe, and the coordinates of the target 90 were measured in the prism mode of the surveying instrument 10 to obtain the lower surface center point S0 of the target. . Further, the coordinates of the center point S1 of the lower surface of the large PVC pipe 12 are calculated from the calculated coordinates of the core C1 of the large PVC pipe 12, and are set as the lower surface center points S1, S2, and S3 of the measured values. Then, by calculating the difference between the coordinates of the lower surface center point S0 of the target and the coordinates of the lower surface center points S1, S2, S3 of the measurement value, the lower surface center points S1, S2, S3 of the measurement value of the measurement result of the present invention. Was deviated from the lower surface center point S0 of the target. In the outdoor test, wireless communication between the surveying instrument 10 and the mobile terminal device 11 with a touch panel was confirmed.

  As a result, as shown in FIG. 14, at the front center auxiliary point P2-1 having a distance of 3500 mm or more from the front center survey point P1, the coordinates of the lower surface center point S0 of the target and the lower surface center point S1 of the measurement value The difference (S1-S0) from the coordinates was within 2 mm, and it was confirmed that the measurement accuracy was high. Moreover, it has confirmed that a measurement precision became favorable, so that the distance with the front center surveying point P1 became long.

  Next, as shown in FIG. 15A, the large PVC pipe 12 was made to stand substantially vertically with respect to the outdoor ground, and the large PVC pipe 12 was used as a vertical column. The surveying instrument 10 of the core coordinate measuring device 1 is installed at a position away from the large PVC pipe 12, and as shown in FIG. 15B, the front central survey point P1 lowered from the upper surface of the large PVC pipe 12 by a predetermined distance r. The coordinates of the core C1 of the PVC pipe 12 at the front center survey point P1 were calculated with the cylindrical unit vector as the Z-direction unit vector.

  As in Example 1, the measurement accuracy was measured in advance by installing the target 150 at the position of the large PVC pipe 12 corresponding to the front center survey point P1, measuring the coordinates of the target 150 in the prism mode of the surveying instrument 10. Using the coordinates of the lower surface center point S0 of the PVC pipe 12, the collapse of the column due to the target was calculated. On the other hand, the column collapse due to the measured value was calculated by subtracting the coordinates of the lower surface center point S0 of the PVC pipe 12 from the coordinates of the core C1 of the large PVC pipe 12 at the calculated front central survey point P1. Then, by calculating the difference between the falling of the column due to the target and the falling of the column due to the measured value, it was evaluated how far the falling of the column due to the measured value of the measurement result of the present invention was not from the falling of the column due to the target. .

  As a result, as shown in FIG. 16, the difference {(C1-S0)-(C2-S0)} between the column collapse due to the target and the column collapse due to the measured value is within 4 mm, and the measurement accuracy is high. I was able to confirm.

  Thus, in Examples 1 and 2, the measurement result in the present invention is close to the measurement result in the prism mode by the target, and it is understood that the core coordinate C1 of the cylinder in the present invention is highly accurate.

  By the way, in S102, the surveyor needs to move the reference mark (center) of the captured image of the telescope 101 to the center of the left and right edges of the front of the cylinder 12 while looking at the front of the cylinder 12 with the telescope 101. Although the installation of scales and crosshair scales can make it difficult for surveyors to make human measurement errors to some extent, they cannot be completely eliminated.

  Therefore, when the front of the cylinder 12 is collimated by the telescope 101, the survey point measurement unit 202 extracts lines on the left and right edges of the front of the cylinder 12 from the captured image of the telescope 101, and extracts the extracted left and right edges. The center of the line may be calculated, and the difference between the calculated line center and the center of the captured image (reference mark) may be calculated and displayed. Thereby, the surveyor operates the telescope 101 according to the displayed difference, so that the reference mark of the captured image of the telescope 101 can be moved with high accuracy to the center position of the left and right edges of the front surface of the cylinder 12. It is possible to drastically reduce the occurrence of surveyor's human measurement error.

  Specifically, as shown in FIG. 17A, the surveyor collimates the front of the cylinder 12 with the telescope 101, takes a photographed image 1700 including the front of the cylinder 12, and gives a predetermined command to the surveying instrument 10 ( Or it inputs into the core coordinate measuring device 1). At this time, the reference mark 1701 of the captured image 1700 of the telescope 101 is not located at the center of the left and right edges of the front surface of the cylinder 12. In response to the input of the command, the survey point measuring unit 202 performs image processing on the captured image 1700 and configures the left edge of the front surface of the cylinder 12 (boundary between the cylinder 12 and the outside) from the captured image 1700. The left edge point 1702 and the right edge point 1703 constituting the right edge in front of the cylinder 12 (boundary between the cylinder 12 and the outside) are extracted. The survey point measuring unit 202 calculates a line 1704 constituting the front left edge of the cylinder 12 based on the extracted left edge point 1702, and similarly, the cylinder 12 based on the extracted right edge point 1703. A line 1705 that constitutes the right edge of the front of is calculated. Thereby, lines 1704 and 1705 on the left and right edges of the front surface of the cylinder 12 can be extracted.

  Next, as shown in FIG. 17B, the survey point measuring unit 202 has the height of the reference mark 1701 of the photographed image 1700 from the lines 1704 and 1705 on the left and right edges of the extracted front surface of the cylinder 12 and both the left and right sides. The center 1706 of the edge lines 1704, 1705 is calculated. Then, the survey point measuring unit 202 calculates and displays the difference z between the calculated center 1706 of the lines 1704 and 1705 and the reference mark 1701 of the photographed image 1700.

  Here, the survey point measurement unit 202 further operates the telescope 101 in the horizontal direction based on the calculated difference z, and automatically matches the centers 1706 of the lines 1704 and 1705 with the reference mark 1701 of the captured image 1700. You may comprise as follows. Thus, since the surveyor does not need to adjust the operation of the telescope 101, the surveyor only needs to confirm whether the reference mark 1701 of the captured image 1700 is located at the center of the left and right edges of the front surface of the cylinder 12. In addition, it is possible to further reduce the occurrence of human measurement errors of surveyors.

  When the survey point measurement unit 202 extracts lines on the left and right edges of the front of the cylinder 12 from the captured image of the telescope 101 by image processing, the cylinder 12 is extracted from the captured image of the telescope 101 using machine learning. It is also possible to extract only the region and extract the lines on the left and right edges of the front surface of the cylinder 12 from the extracted region of the cylinder 12. For example, the survey point measurement unit 202 inputs a captured image in which the cylinder 12 is clearly shown to the machine learning unit, and causes the machine learning unit to learn the shape of the column 12. After the learning by the machine learning unit, the survey point measuring unit 202 extracts only the area of the cylinder 12 using the captured image, and further extracts the lines on the left and right edges of the front of the cylinder 12. Next, when the other cylinder 12 is imaged by the telescope 101, the survey point measurement unit 202 inputs the newly captured image to the machine learning unit after learning. , And only the area of the cylinder 12 is extracted. That is, by learning the shape of the cylinder 12 in the captured image by the machine learning unit, the shape of the cylinder 12 in the captured image to be input next can be recognized with high accuracy, and only the region of the cylinder 12 can be extracted. . In particular, the clarity of the left and right edges of the front surface of the cylinder 12 with respect to the background depends on the background and weather around the cylinder 12 in the captured image. Therefore, by using machine learning, the shape of the cylinder 12 can be automatically identified without depending on the surveyor's eyes even in a noisy background. The machine learning unit is not particularly limited. For example, a support vector machine of a machine learning classifier can be employed. The machine learning unit can adopt a deep learning method.

  By using the machine learning unit described above, when the survey point measurement unit 202 collimates the telescope 101 in front of the cylinder 12, the reference mark of the captured image of the telescope 101 is automatically set on both the left and right sides of the front of the cylinder. It can be located at the center of the edge. Here, in the case where the cylinder 12 is a vertical column, if the survey point measurement unit 202 can automatically measure the coordinates of the front center survey point P1, the subsequent processing is a calculation process. Calculation of the coordinates of the core C1 of the cylinder 12 at the central survey point P1 can be performed automatically. That is, automatic collimation surveying by the machine learning unit can be performed. This eliminates the human error of the surveyor and further improves the measurement accuracy. Further, by using the machine learning unit described above, even if the cylinder 12 of the measurement object moves, the surveying point measurement unit 202 recognizes the shape of the cylinder 12 from the captured image in the machine learning unit. Since only the region is extracted, automatic tracking surveying by the machine learning unit is also possible. For example, the surveyor can set the surveying instrument 10 toward the cylinder 12 and then leave it to automatic processing of the apparatus, which contributes to labor saving.

  Thus, in the present invention, it is possible to eliminate the reading of numerical values by surveyors, reduce the occurrence of human measurement errors, and to automate the measurement of the core coordinates of a cylinder, which can be applied in various fields. I can do it.

  In the present invention, the surveying instrument 10 and the terminal device 11 are configured to include each unit. However, a program that realizes each unit may be stored in a storage medium, and the storage medium may be provided. In the configuration, the program is read by a predetermined processing device, and the processing device realizes each unit. In that case, the program itself read from the recording medium has the effects of the present invention. Furthermore, the steps executed by each unit can be provided as the position measurement method of the present invention.

  As described above, the core coordinate measuring device and the core coordinate measuring method according to the present invention measure the coordinates of a cylindrical core existing in a general structure, building, equipment device, ground, road, vehicle, railway, etc. This is useful in the measurement field, civil engineering field, surveying field, etc., and is effective as a core coordinate measuring device and core coordinate measuring method that can easily and accurately measure the core coordinates of the cylinder of the measurement object. is there.

DESCRIPTION OF SYMBOLS 1 Core coordinate measuring device 10 Surveying instrument 11 Terminal device 12 Cylinder 201 Machine point measuring part 202 Surveying point measuring part 203 Vector calculating part 204 Angle calculating part 205 1st back surface point calculating part 206 2nd back surface point calculating part 207 Core coordinates Calculation unit

Claims (4)

A survey point measurement unit that measures the coordinates of the front center survey point located at the center of the left and right edges of the front of the cylinder when viewed from the telescope of the survey instrument by the non-prism mode of the survey instrument,
A vector calculation unit for calculating a cylinder direction unit vector that is parallel along the axial direction of the cylinder;
An angle calculation unit for calculating an angle formed between a collimation direction unit vector from the mechanical point of the surveying instrument to the front central survey point and the cylindrical direction unit vector;
Based on the coordinates of the front center survey point, the angle, and the diameter of the cylinder, a first back surface that extends from the front center survey point in the direction of the collimation direction unit vector and intersects the back surface of the cylinder A first back point calculation unit for calculating the coordinates of the center point;
Based on the coordinates of the first back center point, the angle, and the collimation direction unit vector, it extends from the front center survey point in a direction perpendicular to the direction of the column direction unit vector and A second back surface point calculation unit for calculating coordinates of a second back surface center point intersecting the back surface;
Based on the coordinates of the front center survey point and the coordinates of the second back center point, a core coordinate calculation unit that calculates the coordinates of the cylinder core at the front center survey point;
A core coordinate measuring device comprising: When the cylinder is a slant pile, the vector calculation unit operates the telescope of the surveying instrument either up or down in the Z direction from the front central survey point, and is different from the front central survey point when viewed from the telescope. And measuring the front center auxiliary point located in the center of the left and right edges of the front of the cylinder by the non-prism mode of the surveying instrument, based on the front center survey point and the front center auxiliary point, The core coordinate measuring apparatus according to claim 1, wherein the cylindrical direction unit vector is calculated. The core coordinate measurement apparatus according to claim 1, wherein the vector calculation unit calculates a unit vector in the Z direction as a cylinder direction unit vector when the cylinder is a vertical column. A survey point measurement step of measuring the coordinates of the front center survey point located at the center of the left and right edges of the front of the cylinder as viewed from the telescope of the survey instrument by the non-prism mode of the survey instrument;
A vector calculation step of calculating a cylinder direction unit vector that is parallel along the axial direction of the cylinder;
An angle calculating step of calculating an angle formed by a collimating direction unit vector from the mechanical point of the surveying instrument to the front center surveying point and the cylindrical direction unit vector;
Based on the coordinates of the front center survey point, the angle, and the diameter of the cylinder, a first back surface that extends from the front center survey point in the direction of the collimation direction unit vector and intersects the back surface of the cylinder A first back point calculating step for calculating the coordinates of the center point;
Based on the coordinates of the first back center point, the angle, and the collimation direction unit vector, it extends from the front center survey point in a direction perpendicular to the direction of the column direction unit vector and A second back surface point calculating step for calculating coordinates of a second back surface center point intersecting the back surface;
Based on the coordinates of the front center survey point and the coordinates of the second back center point, a core coordinate calculation step for calculating the coordinates of the center of the cylinder at the front center survey point;
A core coordinate measuring method comprising: