Concrete column deflection measurement device, concrete column deflection measurement method, and program

Abstract

This invention provides a concrete column deflection measuring device, a concrete column deflection measuring method, and a program that can improve the accuracy of estimating the deflection amount of concrete columns. [Solution] The concrete column deflection measuring device enlarges an image of a concrete column horizontally and receives coordinates for four or more parts of the enlarged concrete column image, including the top and ground level, as specified by the user. Using the image enlargement ratio obtained by horizontally enlarging the image and the conversion ratio of the coordinates of the top of the concrete column corresponding to the ground height of the concrete column, the device calculates the true value of each received coordinate. Based on the complex number corresponding to the true value of each coordinate and the complex number of the inclination angle in the linear coefficient of the cubic equation containing the true value of each coordinate, the device calculates each coordinate as a new coordinate when the ground level is perpendicular to the ground surface. Based on the cubic equation containing the newly calculated coordinates, the device calculates the deflection amount of the concrete column and outputs the calculated deflection amount.

Description

[Technical Field]

[0001] This invention relates to a concrete column deflection measurement device, a concrete column deflection measurement method, and a program. [Background technology]

[0002] Conventionally, various measures have been taken to facilitate the management and maintenance inspection of concrete poles. For example, Patent Document 1 discloses a concrete pole deflection measuring device that estimates the load of all concrete poles in the entire area (power distribution system) based on the measured actual deflection amount, and is used to assist in the management and maintenance inspection of concrete poles. [Prior art documents] [Patent Documents]

[0003] [Patent Document 1] Japanese Patent Publication No. 2023-170574 [Overview of the Initiative] [Problems that the invention aims to solve]

[0004] However, the concrete column deflection measuring device described in Patent Document 1 estimates the deflection of a concrete column based on its circumscribed circle, but measurement errors occur because, for example, the circumscribed circle does not fit a concrete column with a 1 / 160 taper. Therefore, there was room for improvement in terms of increasing the accuracy of estimating the deflection of concrete columns.

[0005] This invention has been made in view of the circumstances described above, and aims to provide a concrete column deflection measuring device, a concrete column deflection measuring method, and a program that can improve the accuracy of estimating the deflection amount of concrete columns. [Means for solving the problem]

[0006] To achieve the above objective, the concrete column deflection amount measuring device according to the present invention is An image processing unit that enlarges the image of the concrete column horizontally, Of the images of the concrete column magnified by the image processing unit, the top of the concrete column specified by the user , the middle section, and A coordinate receiving unit that accepts coordinates for four or more parts, including the ground edge, A true value calculation unit calculates the true value of each coordinate received by the coordinate receiving unit using the image magnification ratio obtained by horizontally enlarging the image in the image processing unit and the conversion ratio of the coordinates of the top of the concrete column relative to the ground height of the concrete column. Based on the true values ​​of each coordinate calculated by the true value calculation unit and the coefficients of the first-order linear equation in the cubic equation containing the true values ​​of each coordinate calculated by the true value calculation unit, the following complex numbers are obtained by reversing the sign of the imaginary part with an absolute value of 1. Concrete pillars A vertical position estimation unit calculates the coordinates of the concrete column in the case where the column is perpendicular to the ground surface, where the top of the column is in a deflected state and is separated from the vertical line from the ground surface, as new coordinates. Based on the cubic equation including the new coordinates calculated by the vertical position estimation unit, the concrete column At the reference load point A deflection amount calculation unit that calculates the amount of deflection, An output unit that outputs the deflection amount calculated by the deflection amount calculation unit, It is equipped with. [Effects of the Invention]

[0007] According to the present invention, the accuracy of estimating the amount of deflection of a concrete column can be improved. [Brief explanation of the drawing]

[0008] [Figure 1] This is a block diagram showing an example of a concrete column deflection measurement device. [Figure 2] This is a flowchart showing an example of load estimation processing. [Figure 3] This is an explanatory diagram showing an example of a magnified image of a concrete column and its coordinate location. [Figure 4] It is a flowchart showing an example of true value calculation processing. [Figure 5] It is an explanatory diagram showing an example of the coordinate position after conversion in a concrete column. [Figure 6] It is a flowchart showing an example of vertical position estimation processing.

Mode for Carrying Out the Invention

[0009] (Embodiment) A concrete column deflection measurement device, a concrete column deflection measurement method, and a program according to an embodiment of the present invention will be described in detail with reference to the drawings. In the drawings, the same or corresponding parts are denoted by the same reference numerals. In this embodiment, the case where the concrete column is a utility pole will be described as an example, but it is not limited to utility poles, and for example, it may be a pole of a foul ball net in a baseball field or a golf course, a night lighting pole installed in a parking lot or a ground, etc.

[0010] First, referring to FIG. 1, the configuration of the concrete column deflection measurement device 100 will be described. The concrete column deflection measurement device 100 is an information terminal such as a smartphone, a tablet, or a PC (Personal Computer), and can transmit and receive various data to and from other information terminals via a network. The concrete column deflection measurement device 100 has a function of executing load estimation processing and deflection amount calculation processing to be described later, and calculates the deflection amount of the concrete column and the estimated load of the concrete column based on an image of the concrete column. Note that the deflection amount is a value indicating the magnitude of the deflection generated in proportion to the lateral load applied to the concrete column, and the estimated load is an estimated value of the lateral load applied to the concrete column. The concrete column deflection measurement device 100 can capture image data of a digital camera, and can also acquire image data by reading data from a memory such as an SD card without going through a network.

[0011] As shown in Figure 1, the concrete column deflection measuring device 100 includes a storage unit 110, a control unit 120, an input / output unit 130, a communication unit 140, and a system bus (not shown) that connects these to each other.

[0012] The memory unit 110 includes ROM (Read Only Memory) and RAM (Random Access Memory), etc. The ROM stores the program 111 executed by the control unit 120, various data (not shown) necessary in advance for executing the program 111, and load ratio information 112.

[0013] Program 111 is a program that performs load estimation processing and deflection amount calculation processing, which will be described later, and is stored in the storage unit 110 in advance.

[0014] The load ratio information 112 is a list of information showing the ratio of deflection amount to estimated load according to the shape (type) and length of the concrete column, and is stored in the storage unit 110 in advance. This load ratio information 112 is referenced when calculating the estimated load based on the shape and length of the concrete column from the calculated deflection amount, which is calculated by the load estimation process described later.

[0015] The control unit 120 consists of a CPU (Central Processing Unit), an ASIC (Application Specific Integrated Circuit), and the like. The control unit 120 operates according to the program 111 stored in the memory unit 110 and executes processing according to the program 111. The main functional units of the control unit 120 provided by the program 111 stored in the memory unit 110 include a concrete column image processing unit 121, a coordinate transformation unit 122, a true value calculation unit 123, a vertical position estimation unit 124, a deflection amount calculation unit 125, a load estimation unit 126, and a deflection amount output unit 127.

[0016] The concrete column image processing unit 121 is a functional unit that performs image processing on the concrete column, such as enlarging and rotating the image of the concrete column and identifying the coordinates of a specified position. Specifically, the concrete column image processing unit 121 has the function of enlarging, for example, a user-specified image of a concrete column by three times in the horizontal direction. In addition, the concrete column image processing unit 121 has the function of identifying the coordinates of four points on the concrete column: the top, the upper middle, the lower middle, and the ground level, which are provided to the user's input / output unit 130.

[0017] The coordinate transformation unit 122 is a functional unit that transforms the coordinates of four points identified by the concrete column image processing unit: the top, the upper middle, the lower middle, and the base. Specifically, the coordinate transformation unit 122 has the function of transforming the base coordinate of the four points (top, upper middle, lower middle, and base) to (0,0), and transforming the coordinates of the top, upper middle, and lower middle to the coordinates corresponding to the base coordinate being (0,0). In other words, the coordinate transformation unit 122 has the function of transforming the coordinates of the four points (top, upper middle, lower middle, and base) on the image to the coordinates of the base coordinate being (0,0).

[0018] The true value calculation unit 123 is a functional unit that performs the true value calculation process described later. Specifically, the true value calculation unit 123 has the function of calculating the coordinates of the four points (top, upper middle, lower middle, and base) that have been transformed by the coordinate transformation unit 122, so that the coordinate of the top becomes the actual height of the concrete column above ground. In other words, the true value calculation unit 123 has the function of calculating the coordinates of the four points (top, upper middle, lower middle, and base) of the actual concrete column.

[0019] The vertical position estimation unit 124 is a functional unit that performs the vertical position estimation process described later. Specifically, the vertical position estimation unit 124 has the function of calculating the coordinates of four points: the top, the upper middle, the lower middle, and the base of the concrete column when the concrete column is perpendicular to the ground surface. In other words, the vertical position estimation unit 124 has the function of calculating the coordinates of four points: the top, the upper middle, the lower middle, and the base of the concrete column when the concrete column is perpendicular to the ground surface.

[0020] The deflection calculation unit 125 is a functional unit that calculates the deflection amount of the concrete column. Specifically, the deflection calculation unit 125 has the function of calculating the deflection amount at the reference load point of the concrete column (25 centimeters below the top) using a cubic equation. Details of the deflection calculation will be described later.

[0021] The load estimation unit 126 is a functional unit that calculates the estimated load based on the calculated deflection amount. Specifically, the load estimation unit 126 has the function of calculating the estimated load corresponding to the deflection amount calculated by the deflection amount calculation unit 125 and the shape and length of the concrete column, based on the load ratio information 112 stored in the storage unit 110.

[0022] The input / output unit 130 consists of a keyboard, mouse, camera, microphone, liquid crystal display, organic EL (Electro-Luminescence) display, etc., and is a device for inputting and outputting various types of data.

[0023] The communication unit 140 is a device that allows the concrete column deflection measuring device 100 to communicate with other information terminals via a network.

[0024] These functional units work together to enable the concrete column deflection measuring device 100 to calculate the deflection amount and estimated load of the concrete column based on an image of the concrete column.

[0025] The above describes the configuration of the concrete column deflection measuring device 100. Next, the operation of the concrete column deflection measuring device 100 will be explained. When the user operates the input / output unit 130, the load estimation process shown in Figure 2 is started.

[0026] When the load estimation process shown in Figure 2 is started, the control unit 120 first reads the image specified by the user using the functions of the concrete column image processing unit 121 (step S101). Specifically, in the process of step S101, the image of the concrete column specified by the user is read and displayed on the input / output unit 130.

[0027] After executing the process in step S101, the control unit 120 enlarges the image read in step S101 using the function of the concrete column image processing unit 121 (step S102). Specifically, in the process of step S102, the concrete column image read in the process of step S101 is enlarged horizontally by about 3 times to match the screen size. Since enlargement emphasizes both the deflection and inclination of the concrete column, in the process of step S102, the inclination may be rotated first before horizontal enlargement. The magnification ratio should be arbitrarily set by the user. The concrete column image processing unit 121 that executes the process of step S102 and step S102 correspond to the image processing unit and image processing step. The horizontal magnification ratio should be around 3 to 5 times, and in this embodiment, the horizontal magnification ratio is assumed to be 3 times.

[0028] After executing the process in step S102, the control unit 120 receives the designation of the concrete column displayed in the image read in step S101, and receives the designation of four points in the enlarged image from the process in step S102: the top, the upper middle, the lower middle, and the base of the concrete column (step S103). Specifically, in the process in step S103, the coordinates on the image of the four points—the top, the upper middle, the lower middle, and the base of the concrete column—specified by the user's operation of the input / output unit 130 on the enlarged image in the process in step S102 are obtained. Note that the concrete column image processing unit 121 that receives the designation of the four points in step S103 and step S103 correspond to the coordinate reception unit and the coordinate reception step. The four points—the top, the upper middle, the lower middle, and the base of the concrete column—are included in the four parts specified by the user. In this example, the following explanation assumes that the four points P (top), Q (upper middle), R (lower middle), and S (base of the concrete column) shown in Figure 3 are specified.

[0029] Returning to Figure 2, after executing the process in step S103, the control unit 120 executes the true value calculation process shown in Figure 4 using the function of the true value calculation unit 123 (step S104). The true value calculation process shown in Figure 4 is a process for calculating the coordinates of four points on an actual concrete column: the top, the upper middle, the lower middle, and the ground level. When the true value calculation process shown in Figure 4 is started, the control unit 120 first transforms the coordinates specified in the process in step S103 of Figure 2 using the function of the coordinate transformation unit 122 (step S201). Specifically, in step S201 shown in Figure 4, the coordinate transformation unit 122 transforms the image coordinates (Q~R) at four points—the top, middle upper, middle lower, and ground level of the concrete column—specified in step S103 of Figure 2, as follows: the ground level coordinate S(637,596) shown in Figure 3 is transformed to the ground level coordinate p(0,0) shown in Figure 5; the middle lower level coordinate R(613,406) shown in Figure 3 is transformed to the middle lower level coordinate q(190,-24) shown in Figure 5; the middle upper level coordinate Q(613,173) shown in Figure 3 is transformed to the middle upper level coordinate r(423,-20) shown in Figure 5; and the top coordinate P(627,17) shown in Figure 3 is transformed to the top coordinate s(579,-10) shown in Figure 5. Note that the x and y coordinates are in the directions shown in Figures 3 and 5, respectively.

[0030] After performing the process shown in step S201 in Figure 4, the control unit 120, using the function of the true value calculation unit 123, calculates y=ax 3 +bx 2 The values ​​of the coefficients a, b, and c in +cx are calculated (step S202). Specifically, in the process of step S202, the true value calculation unit 123 calculates the values ​​of the coefficients a, b, and c in the cubic equation y=ax 3 +bx 2 By substituting the coordinate values ​​of q~s, which were transformed in step S201, into +cx, the values ​​of a~c are calculated using a system of equations.

[0031] After executing the process of step S202 shown in FIG. 4, the control unit 120 determines whether the ground edge is hidden by the function of the true value calculation unit 123 (step S203). Specifically, in the process of step S203, the true value calculation unit 123 determines whether the ground edge is hidden by checking whether an operation of the input / output unit 130 by the user indicating whether the ground edge is hidden has been performed. Note that the case where the ground edge is hidden means, for example, the case where the boundary between the ground surface and the concrete column is hidden, such as when buried in snow or when the ground edge is hidden by garbage at a garbage disposal site.

[0032] If it is determined in the process of step S203 that the ground edge is hidden (step S203; Yes), that is, if the user has performed an operation indicating that the ground edge is hidden, the control unit 120 converts each coordinate from p to s according to the coordinates of the true ground edge by the function of the true value calculation unit 123 (step S204). Specifically, in the process of step S204, the true value calculation unit 123, for example, converts the x coordinate at each coordinate from p to s based on the concrete column number plate attached at a position 4 m above the ground surface, and obtains the converted y coordinate by substituting the value of each coordinate into x in the cubic equation y = ax 3 + bx 2 + cx. Note that the values of a to c in the cubic equation y = ax 3 + bx 2 + cx may be respectively the values calculated in the process of step S202.

[0033] After executing the process of step S204, the control unit 120 calculates the values of each coefficient a, b, and c in y = ax 3 + bx 2 + cx by the function of the true value calculation unit 123, similar to the process of step S202 (step S205). Specifically, in the process of step S205, the true value calculation unit 123 calculates the values of a to c using a system of simultaneous equations by substituting the values of each coordinate from q to s converted in the process of step S204 into the cubic equation y = ax 3 + bx 2 + cx.

[0034] After the process in step S205 is executed, or if it is determined in the process in step S203 that the ground level is not hidden (step S203; No), that is, if the user performs an operation indicating that the ground level is not hidden, the control unit 120 uses the function of the true value calculation unit 123 to draw a regression curve along the concrete column in the enlarged image displayed in the process in step S102 of Figure 2 (step S206). Specifically, in the process in step S206, the true value calculation unit 123 draws the regression curve shown by the dotted line in Figure 5 by displaying the curve shown by the cubic equation calculated in the process in step S202 or the cubic equation calculated in the process in step S205 along the concrete column.

[0035] Returning to Figure 4, after executing the process in step S206, the control unit 120, using the function of the true value calculation unit 123, divides the y values ​​of each coordinate from q to s, which were converted in the process of step S201 or step S204, by the horizontal image scaling factor (step S207). Specifically, in the process of step S207, the true value calculation unit 123 divides the y values ​​of each coordinate from p to s, which were converted in the process of step S201 or step S204, by "3", which is the horizontal image scaling factor of this image.

[0036] After executing the process shown in step S207 in Figure 4, the control unit 120 uses the function of the true value calculation unit 123 to transform each coordinate so that the x value of the s coordinate becomes the ground height of the concrete column (step S208). Specifically, in the process of step S208, the true value calculation unit 123 calculates the ground height of the concrete column based on a preset height of the concrete column. Then, it calculates a transformation multiplier so that the x value of the s coordinate before transformation becomes the ground height, and calculates the actual value at each coordinate by multiplying this by the x and y values ​​of each coordinate from p to s. Since 1 / 6 of the concrete column is embedded in the ground beforehand, the ground height of the concrete column becomes 5 / 6 of the height of the concrete column. For example, if the height of the concrete column is 12m, the ground height of the concrete column will be 5 / 6 of that, or 10m. Thus, when the height of the concrete column above ground is 10m, and the coordinates p to s are as shown in Figure 5, in step S207, the true value calculation unit 123 divides the y values ​​of p to s shown in the figure by 3 to obtain p(0,0), q(190,-8), r(423,-20 / 3), and s(579,-10 / 3). Then, in step S208, the true value calculation unit 123 calculates a conversion factor of 57.9, since the x value of coordinate s is 579 and the height of the concrete column above ground is 10m. Then, by dividing the x and y values ​​of each coordinate by this 57.9, the actual values ​​at each coordinate are calculated. In this example, executing the process in step S208 results in p(0,0), q(3.281519862,-0.138169257), r(7.30569948,-0.11514), and s(10,-0.05757).

[0037] After executing the process in step S208 shown in Figure 4, the control unit 120, using the function of the true value calculation unit 123, performs the same process as in step S202: y=ax 3 +bx 2 The values ​​of the coefficients a, b, and c in +cx are calculated (step S209), and the true value calculation process is terminated. Specifically, in the process of step S209, the true value calculation unit 123 calculates the values ​​of the cubic equation y=ax 3 +bx 2By substituting the coordinate values ​​of q~s, which were transformed in step S208, into +cx, the values ​​of a~c are calculated using a system of equations.

[0038] Returning to Figure 2, after executing the process in step S104, the control unit 120 performs the vertical position estimation process shown in Figure 6 using the function of the vertical position estimation unit 124 (step S105). The vertical position estimation process shown in Figure 6 is a process that calculates the coordinates of four points: the top, the upper middle, the lower middle, and the ground level, assuming that the concrete column is perpendicular to the ground surface. When the vertical position estimation process shown in Figure 6 is started, the control unit 120 first uses the function of the vertical position estimation unit 124 to calculate y=ax 3 +bx 2 The c-value slope angle and each coordinate in +cx are converted into complex numbers with an absolute value of 1 and the imaginary part inverted (step S301). Specifically, in the process of step S301, the vertical position estimation unit 124 converts the c-value calculated in the process of step S209 shown in Figure 4 into a complex number, and also converts each coordinate from p to s converted in the process of step 208 into a complex number. The conversion of the c-value to a complex number can be performed based on the following equation (1). Also, the conversion of each coordinate from p to s to a complex number can be, for example, if q(3.281519862,-0.138169257), then it can be converted to q=3.281519862-0.138169257i.

number

[0039] After executing the process shown in step S301 in Figure 6, the control unit 120, using the function of the vertical position estimation unit 124, calculates the coordinates of p to s corresponding to the case where the concrete column is perpendicular to the ground surface, i.e., when the base is perpendicular to the ground surface, as new coordinates using a complex matrix (step S302). Specifically, in the process of step S302, the vertical position estimation unit 124 calculates the coordinates of p to s corresponding to the case where the base is perpendicular to the ground surface by multiplying the coordinates of p to s, which were converted to complex numbers in the process of step S301, by the c value (equation (1) above), which was converted to a complex number in the process of step S301. For example, in the case of the coordinate of q corresponding to the case where the base is perpendicular to the ground surface, the vertical position estimation unit 124 calculates the new coordinate of q in the process of step S302 using the following equation (2).

number

[0040] After executing the process in step S302 of Figure 6, the control unit 120, using the function of the vertical position estimation unit 124, calculates y=ax 3 +bx 2 The values ​​of the coefficients a, b, and c in +cx are calculated (step S303), and the vertical position estimation process is terminated. Specifically, in the process of step S303, the vertical position estimation unit 124 calculates the cubic equation y=ax 3 +bx 2 By substituting the coordinate values ​​of p~s, which were transformed in step S301, into +cx, the values ​​of a~c are calculated using a system of equations.

[0041] Returning to Figure 2, after executing the process in step S105, the control unit 120 calculates the amount of deflection using the function of the deflection calculation unit 125 (step S106). Specifically, in the process of step S106, the deflection calculation unit 125 calculates the amount of deflection at the reference load point of the concrete column (25 centimeters below the top) using a cubic equation. More specifically, in the process of step S106, the deflection calculation unit 125 uses the values ​​a to c calculated in the process of step S303 in Figure 6 to form the cubic equation y=ax 3+bx 2 The y value obtained by substituting 9.75 (the x value obtained by subtracting 0.25 from the x value of the s coordinate (the coordinate of the top calculated in step S208), which is the coordinate of the top) into the x value at +cx, is calculated as the deflection amount of the concrete column.

[0042] After executing the process shown in step S106 in Figure 2, the control unit 120 calculates the estimated load, which is an estimated value of the lateral load on the concrete column, using the function of the load estimation unit 126 (step S107). Specifically, in the process of step S107, the load estimation unit 126 refers to the load ratio information 112 stored in the storage unit 110 and calculates the estimated load using the shape and length of the concrete column and the ratio corresponding to the amount of deflection calculated in the process of step S106. The shape and length of the concrete column can be specified by the user. The load estimation unit 126 that executes the process of step S107 corresponds to the estimated load calculation unit.

[0043] After executing the process in step S106, the control unit 120 outputs the deflection amount and estimated load calculated in the processes of step S106 and step S107 to the input / output unit 130 (step S108), and terminates the load estimation process. The control unit 120 that executes the process in step S108 and step S108 correspond to the output unit and output step.

[0044] As explained above, the concrete column deflection measuring device 100 magnifies the image of the concrete column horizontally to a level where the deflection can be visually observed, and then accepts the designation of four points on the concrete column: the top, the upper middle, the lower middle, and the ground level. From these four points, the cubic equation y=ax is calculated. 3 +bx 2 The values ​​of a to c in +cx are calculated, and the coordinates of four points on the actual concrete column—the top, upper middle, lower middle, and ground level—are calculated using the image magnification and the conversion magnification corresponding to the ground height (i.e., the true coordinates). Then, using the true coordinates, new coordinates are calculated for the case where the ground level is vertical, thereby obtaining the cubic equation y=ax when the ground level is vertical.3 +bx 2 The values ​​a to c in +cx are calculated, and the amount of deflection and load at the reference load point of the concrete column (25 centimeters below the top) are estimated. In this way, the concrete column deflection measuring device 100 according to this embodiment makes it possible to easily calculate the amount of deflection of a concrete column, which is difficult to determine with the naked eye or from photographs, and thus the estimated load can also be easily calculated, making it easier to manage and maintain the concrete column.

[0045] (modified version) Furthermore, this invention is not limited to the above embodiments, and various modifications and applications are possible. For example, the concrete column deflection measuring device 100 according to the above embodiment does not have to have all the technical features shown above, and may have some of the configurations described in the above embodiment so as to solve at least one problem in the prior art. In addition, at least some of the following modifications may be combined.

[0046] In the above embodiment, the process in step S108 of Figure 2 shows an example in which the calculated deflection amount and estimated load are output to the input / output unit 130 of the concrete column deflection amount measuring device 100, but this is just one example. In addition, the calculated deflection amount and estimated load may be output via the communication unit 140 to the input / output unit of an information terminal such as a smartphone, tablet, or PC owned by a worker at the site. In this case, the process in step S101 may also be performed by receiving and reading an image of the concrete column from the information terminal owned by the worker at the site via the communication unit 140. Alternatively, the image may be taken with the camera of an information terminal such as a smartphone, tablet, or PC owned by a worker at the site and processed directly, or an image taken with a smartphone, tablet, PC, or digital camera may be read and processed. This makes it possible to calculate and output the deflection amount and estimated load based on images of the site taken by the worker at the site, making the management and maintenance inspection of concrete columns easier.

[0047] Furthermore, the above embodiment shows an example where four points are specified: the top, the upper middle, the lower middle, and the ground level. However, this is just one example. In addition, five or more points including the top and ground level may be specified, for example, the top, the upper middle, the middle, the lower middle, and the ground level. When five or more coordinates are specified in this way, the individual count values ​​a to c in the cubic equation can be calculated using the least squares method.

[0048] Furthermore, in the above embodiment, an example was shown in which the deflection amount and estimated load are output in the process of step S108 shown in Figure 2, but this is just one example. For example, only the deflection amount may be output after the process of step S106.

[0049] Furthermore, in the above embodiment, in step S204 shown in Figure 4, an example was shown in which the x-coordinates in each coordinate system from p to s are transformed using a concrete column number plate attached at a height of 4m from the ground surface as the reference point. However, this is just one example. In step S204, in addition to the concrete column number plate, for example, a nameplate display attached at a height of 2m from the ground surface may be used as the reference point. Alternatively, a foundation depth confirmation display attached at a height of 0.5m from the ground surface may be used as the reference point.

[0050] Furthermore, in the above embodiment, an example was shown in which the ground clearance of the concrete column is calculated based on a preset height of the concrete column in step S208 shown in Figure 4, but this is just one example. For example, height information indicating the height of the concrete column may be obtained from an external source, such as by acquiring information stored in an external database or electronic map.

[0051] Furthermore, in the above embodiment, an example was shown in which the coordinate system is changed and each coordinate is transformed so that the coordinate of the ground is (0,0) in the process of step S201 shown in Figure 4, but this is just one example. In this embodiment, an example was used in which the coordinate system at the time of image acquisition was the coordinate system shown in Figure 3, so each coordinate was transformed to the coordinates shown in Figure 5, but if the coordinate system is as shown in Figure 5 from the beginning, it is not necessary to change the coordinate system, and only each coordinate is transformed so that the coordinate of the ground is (0,0).

[0052] Furthermore, the concrete column deflection measuring device 100 according to the above embodiment can be implemented using a regular computer, rather than a dedicated device. For example, the concrete column deflection measuring device 100 that performs the above processing may be configured by installing a program for performing any of the above-mentioned operations from a recording medium to a computer. Alternatively, a single concrete column deflection measuring device 100 may be configured by multiple computers working together.

[0053] Furthermore, if the above-mentioned functions are realized through a division of labor between the OS (Operating System) and the application, or through collaboration between the OS and the application, then only the parts other than the OS may be stored on the medium.

[0054] Furthermore, it is possible to superimpose a program onto a carrier wave and distribute it via a communication network. For example, the program could be posted on a bulletin board system (BBS) on the communication network and distributed via the network. These programs could then be launched and executed under the control of the operating system, similar to other application programs, thereby enabling the execution of the aforementioned processes. [Explanation of symbols]

[0055] 100 Concrete Column Deflection Measurement Device 110 Storage section 111 Programs 112 Load Ratio Setting Information 130 Input / output section 120 Control Unit 121 Concrete Pillar Image Processing Unit 122 Coordinate Transformation Unit 123 True Value Calculation Unit 124 Vertical position estimation section 125 Deflection Amount Calculation Unit 126 Estimated Load Processing Unit

Claims

1. An image processing unit that enlarges the image of the concrete column horizontally, A coordinate receiving unit receives coordinates of four or more parts of the image of the concrete column magnified by the image processing unit, including the top, middle, and ground level of the concrete column, as specified by the user. A true value calculation unit calculates the true value of each coordinate received by the coordinate receiving unit using the image magnification ratio obtained by horizontally enlarging the image in the image processing unit and the conversion ratio of the coordinates of the top of the concrete column relative to the ground height of the concrete column. A vertical position estimation unit calculates new coordinates for each of the coordinates of the concrete column when it is perpendicular to the ground surface, and for the concrete column when its top is in a deflected state and is separated from the vertical line from the ground surface, based on the true values ​​of each coordinate calculated by the true value calculation unit and the linear coefficient of the cubic equation containing the true values ​​of each coordinate calculated by the true value calculation unit, with the sign of the imaginary part being reversed and the absolute value of each coordinate being 1. A deflection calculation unit calculates the amount of deflection at the reference load point of the concrete column based on a cubic equation including the new coordinates calculated by the vertical position estimation unit, An output unit that outputs the deflection amount calculated by the deflection amount calculation unit, A concrete column deflection measuring device equipped with [a specific feature].

2. The true value calculation unit calculates the true value of each coordinate by dividing the y-coordinate value of each coordinate received by the coordinate reception unit by the image magnification ratio, calculating a conversion ratio corresponding to the ground height of the concrete column for the x-coordinate of the top coordinate received by the coordinate reception unit, and dividing the x-coordinate and y-coordinate of each coordinate after division by the image magnification ratio by the conversion ratio. The concrete column deflection measurement device according to claim 1.

3. The system further comprises an estimated load calculation unit that calculates the estimated load acting on the concrete column based on the amount of deflection of the concrete column calculated by the deflection calculation unit and ratio information indicating the ratio of the amount of deflection to the estimated load, which is stored in advance. The output unit further outputs the estimated load calculated by the estimated load calculation unit. The concrete column deflection measurement device according to claim 1 or 2.

4. The deflection amount calculation unit calculates the deflection amount by substituting the predetermined coordinate values ​​of the reference load point into the cubic equation including the new coordinates. The concrete column deflection measurement device according to claim 1 or 2.

5. A method for measuring the deflection of a concrete column using a concrete column deflection measuring device, An image processing step to enlarge the image of the concrete column horizontally, A coordinate reception step that receives coordinates of four or more parts of the image of the concrete column enlarged in the image processing step, including the top, middle, and ground level of the concrete column, as specified by the user. A true value calculation step calculates the true value of each coordinate received in the coordinate reception step, using the image magnification ratio obtained by horizontally enlarging the image in the image processing step and the conversion ratio of the coordinates of the top of the concrete column relative to the ground height of the concrete column. A vertical position estimation step in which the true values ​​of each coordinate calculated in the true value calculation step and the coefficient of the first-order term in the cubic equation containing the true values ​​of each coordinate calculated in the true value calculation step are used to calculate new coordinates for each of the coordinates of the concrete column when it is perpendicular to the ground surface, and for the concrete column when its top is in a deflected state and is separated from the vertical line from the ground surface, based on the complex numbers obtained by reversing the sign of the imaginary part and having an absolute value of 1, respectively. A deflection calculation step, which calculates the amount of deflection at the reference load point of the concrete column based on a cubic equation including the new coordinates calculated in the vertical position estimation step, An output step which outputs the deflection amount calculated in the deflection amount calculation step, A method for measuring the deflection of concrete columns, comprising the following features.

6. Computers, Image processing unit that enlarges the image of the concrete column horizontally. A coordinate receiving unit receives coordinates of four or more parts of the image of the concrete column, which has been enlarged by the image processing unit, including the top, middle, and ground level of the concrete column, as specified by the user. A true value calculation unit calculates the true value of each coordinate received by the coordinate receiving unit, using the image magnification ratio obtained by horizontally enlarging the image in the image processing unit and the conversion ratio of the coordinates of the top of the concrete column relative to the height of the concrete column above ground. A vertical position estimation unit calculates new coordinates for each of the coordinates of the concrete column when it is perpendicular to the ground surface, and for the concrete column when its top is in a deflected state and is separated from the vertical line from the ground surface, based on the true values ​​of each coordinate calculated by the true value calculation unit and the linear coefficient of the cubic equation containing the true values ​​of each coordinate calculated by the true value calculation unit, with the sign of the imaginary part being reversed and the absolute value of each coordinate being 1. A deflection calculation unit calculates the amount of deflection at the reference load point of the concrete column based on a cubic equation including the new coordinates calculated by the vertical position estimation unit. An output unit that outputs the deflection amount calculated by the deflection amount calculation unit. A program that makes it function as such.

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