Utility pole replacement survey support device

Abstract

This invention provides a utility pole replacement survey support device that can improve the accuracy of utility pole replacement survey work by determining the distance between existing and newly installed utility poles. [Solution] The utility pole replacement survey support device 1 includes: an acquisition unit 2 that acquires images of existing utility poles and existing equipment from a communication terminal 50; a ratio calculation unit 5 that calculates the ratio of the first known dimensions based on the image, the first known dimensions of the existing utility pole or existing equipment, and the first number of pixels corresponding to the first known dimensions; a new image creation unit 6 that calculates the second number of pixels based on the second known dimensions and ratio of the new utility pole template, and calculates the third number of pixels based on the third known dimensions and ratio of the new equipment template, and creates new utility pole images and new equipment images; a layout image creation unit 7 that creates a layout image in which the new equipment image is placed between the existing equipment and the new utility pole image on the image; and a transmission unit 15 that transmits the layout image to the communication terminal 50.

Description

Technical Field

[0001] The present invention relates to a utility pole replacement survey operation support device that supports survey operations carried out before replacing utility poles.

Background Art

[0002] Conventionally, in utility pole replacement survey operations, the pole installation position of a newly installed utility pole was determined visually. However, when there are many overhead lines and communication lines installed on existing utility poles, there is a problem that it is difficult to determine the pole installation position only by visual inspection. Therefore, when starting construction, due to insufficient space for newly installed equipment installed on the newly installed utility pole, etc., it may not be possible to place the newly installed utility pole at the planned pole installation position, and a plan change may be inevitable. To solve such problems, in recent years, a technology for displaying the pole installation position using AR technology has been developed, and an invention related thereto has already been disclosed.

[0003] Patent Document 1 discloses an invention related to a device for supporting work related to pole installation under the name of "work support device". The invention disclosed in Patent Document 1 includes a display unit for displaying information, a photographing unit for photographing the real space and outputting a real space image, a display control unit for displaying the real space image on the display unit, a self-position, a distance measuring unit for measuring the distance between the self-position and the real position corresponding to a predetermined pole installation planned position in the real space image displayed on the display unit, a conversion unit for converting the distance information into three-dimensional information, a positioning unit for positioning the self-position, a posture measuring unit for measuring its own posture, and an AR image arranging unit for displaying an AR pole image extending in the vertical direction in the real space image at the pole installation planned position based on the three-dimensional information, the self-position, and the posture with respect to the display unit on which the real space image is displayed, and an image processing unit for storing the real space image in which the AR pole image is superimposed and displayed in a storage unit. In this invention, the planned location for erecting a utility pole can be specified in the displayed real-world image, and an AR utility pole can be erected. By using the superimposed image combining the AR utility pole and the real world in the application drawings for the pole erection, the time required for document creation can be reduced. Furthermore, the distance measuring unit can accurately measure the distance from the work support device to the planned location for erection. [Prior art documents] [Patent Documents]

[0004] [Patent Document 1] Japanese Patent Publication No. 2021-163295 [Overview of the project] [Problems that the invention aims to solve]

[0005] In the invention disclosed in Patent Document 1, the distance measuring unit measures the distance between its own position and the actual position corresponding to a predetermined planned pole installation position in the real-space image. This requires time and effort for measuring the distance, potentially increasing the burden of survey work. In addition, since the design engineer adjusts the orientation of the work support device so that the assumed pole installation position is displayed in the center of the display unit before the distance measuring unit measures the distance to the pole installation position, there remains a risk that the plan may need to be changed if the assumed pole installation position is inappropriate.

[0006] This invention addresses the aforementioned conventional circumstances and aims to provide a utility pole replacement survey support device that can improve the accuracy of utility pole replacement survey work by enabling visual confirmation of pole installation locations with minimal workload and allowing for the determination of the distance between existing and new utility poles. [Means for solving the problem]

[0007] To achieve the above objective, the first invention is a utility pole replacement survey support device that assists in survey work carried out before the replacement of utility poles, comprising: an acquisition unit that acquires images of existing utility poles and existing equipment installed on these existing utility poles from a communication terminal; a ratio calculation unit that calculates the ratio of the first known dimensions to the first number of pixels based on the images, a first known dimension of the existing utility pole or existing equipment, and a first number of pixels corresponding to the first known dimension; and a second known dimension of a new utility pole template included in the image template, and based on the ratio The system is characterized by comprising: a new image creation unit that calculates a second number of pixels corresponding to a second known dimension, and, based on the ratio with the third known dimension of the new equipment template included in the image template, calculates a third number of pixels corresponding to the third known dimension, and creates a new utility pole image and a new equipment image adjusted to the second and third number of pixels, respectively; a layout image creation unit that creates a layout image in which the new equipment image is placed between the existing equipment and the new utility pole image on the image; and a transmission unit that transmits the layout image to a communication terminal.

[0008] In this type of invention, the communication terminal used is a mobile device capable of bidirectional communication with the utility pole replacement survey support device, such as a smartphone or tablet equipped with a camera. Newly installed utility poles are erected not at the original location of existing utility poles, but at a position slightly away from them. Existing equipment refers to, for example, crossarms, pole-mounted transformers, switches, etc., that are supported by existing utility poles. Furthermore, the first known dimension of an existing utility pole or existing equipment refers to the actual distance between two scaffolding bolts installed along the vertical direction of the existing utility pole, or the actual total length of the crossarm. Furthermore, image templates are augmented reality (AR) images that can be displayed on an image, and various templates of different shapes are available for each type of new utility pole or new equipment. Therefore, the new utility pole template and new equipment template are selected from a variety of templates. Furthermore, as a second known dimension for the new utility pole template, for example, the actual distance between two scaffolding bolts is used, similar to existing utility poles, and as a third known dimension for the new equipment template, for example, the actual total length of the crossarm is used, similar to existing equipment.

[0009] In the invention with the above configuration, the new image creation unit creates images of new utility poles and new equipment adjusted to the second and third pixel counts, respectively. As a result, the magnification ratio of the existing utility pole images and existing equipment images matches the magnification ratio of the new utility pole images and new equipment images. Therefore, the layout image created by the layout image creation unit makes it possible to visually determine whether the image of the new equipment can be placed between the existing equipment and the image of the new utility pole. The position of the new utility pole image is calculated based on the pole installation position determined by on-site survey work and its ratio.

[0010] The second invention is characterized in that, in the first invention, a distance calculation unit detects at least one of a first number of newly installed pixels corresponding to a first interval between an image of newly installed equipment and existing equipment, and a second number of newly installed pixels corresponding to a second interval between an image of newly installed equipment and a newly installed utility pole, on the layout image, and calculates at least one of a first actual distance for the first interval and a second actual distance for the second interval, wherein the first actual distance is calculated based on the first number of newly installed pixels and a ratio, and the second actual distance is calculated based on the second number of newly installed pixels and a ratio, and the transmission unit transmits at least one of the first actual distance and the second actual distance to the communication terminal, respectively.

[0011] In an invention with this configuration, in addition to the operation of the first invention, the distance calculation unit calculates at least one of the first real distance and the second real distance, so that at least one of the first interval and the second interval on the arrangement image is shown as a numerical value.

[0012] The third invention is characterized in that, in the second invention, the communication terminal is equipped with a display screen, and the arrangement image, the first actual distance, and the second actual distance are displayed on the display screen, respectively. In this configuration, in addition to the function of the second invention, the arrangement image, the first actual distance, and the second actual distance are simultaneously displayed on the display screen of the communication terminal.

[0013] The fourth invention is characterized in that, in the first and second inventions, the images are photographs of existing utility poles and existing equipment taken from at least two directions. In an invention with such a configuration, examples of two-way photography include photography from the front and side of existing utility poles and existing equipment, or from oblique directions that intersect each other. Furthermore, the images may be taken from three directions (for example, the front, side, and oblique directions) or four directions (for example, the front, back, right side, and left side directions). In the invention with the above configuration, in addition to the functions of the first and second inventions, since the images are taken from at least two directions of the existing utility poles and existing equipment, the cases in which the existing utility poles and existing equipment and the new utility poles and new equipment overlap in the arrangement image can be reduced. Therefore, the first actual distance and the second actual distance can be reliably calculated. [Effects of the Invention]

[0014] According to the first invention, it becomes possible to visually determine whether the image of the new equipment can be placed between the existing equipment and the image of the new utility pole on the layout image, thus enabling the accurate determination of the pole installation location during survey work. Therefore, it is possible to avoid redoing work after the construction plan has been made or re-determining the pole installation location. Furthermore, the new utility pole templates and new equipment templates can be selected from a variety of shapes, making them compatible with diverse new utility poles and equipment, thus offering excellent versatility.

[0015] According to the second invention, in addition to the effects of the first invention, by indicating at least one of the first interval and the second interval on the arrangement image as numerical values, it becomes possible to determine with greater accuracy whether or not the image of the new equipment can be placed between the existing equipment and the image of the new utility pole, compared to the case of visual inspection alone.

[0016] According to the third invention, in addition to the effects of the second invention, on the display screen of the communication terminal, the placement image, the first actual distance, and the second actual distance can be simultaneously confirmed, so that the construction worker can accurately know whether the position of the building pillar is acceptable. Furthermore, since it is possible to allow the customer to view the placement image, the understanding of the customer regarding the situation after reconstruction can be promoted.

[0017] According to the fourth invention, in addition to the effects of the first invention, since the first actual distance and the second actual distance are surely calculated, it is possible to more strongly prevent rework after the construction plan, etc.

Brief Description of the Drawings

[0018] [Figure 1] It is a configuration diagram of a utility pole replacement survey work support device according to an embodiment. [Figure 2] It is a process diagram of a utility pole replacement survey work support method. [Figure 3] It is a process diagram of a utility pole replacement survey work support method. [Figure 4] It is a front image obtained by photographing an existing utility pole and existing facilities from the front. [Figure 5] It is a right side image obtained by photographing an existing utility pole and existing facilities from the right side. [Figure 6] It is a placement image corresponding to the front image of FIG. 4. [Figure 7] It is a placement image corresponding to the right side image of FIG. 5.

Modes for Carrying Out the Invention

Examples

[0019] The utility pole replacement survey work support device according to an embodiment of the present invention will be described in detail with reference to FIGS. 1 to 7. FIG. 1 is a configuration diagram of a utility pole replacement survey work support device according to an embodiment. As shown in FIG. 1, the utility pole replacement survey work support device 1 according to the embodiment is a device that supports the survey work performed before the replacement of the utility pole. Furthermore, the utility pole replacement survey support device 1 is specifically a computer and comprises an acquisition unit 2, a display screen 3, a control unit 4, a storage unit 9, and a transmission unit 15. In addition, the utility pole replacement survey support device 1 can communicate bidirectionally with a communication terminal 50 used by the survey personnel via the network N.

[0020] The communication terminal 50 is a smartphone and comprises a control unit 50a, a camera 50b, a storage unit 50c, a display screen 50d, and a transmitting / receiving unit 50e. Of these, the display screen 50d can display images of existing utility poles and existing equipment installed on these existing utility poles, images of new utility poles, images of new equipment, and layout images taken by the camera 50b. In addition, it is possible to set the endpoints of a straight line corresponding to the first known dimension described later, the endpoints of the first interval, and the endpoints of the second interval. These images and the set endpoints are stored in the storage unit 50c. Furthermore, the memory unit 50c stores a communication terminal program for controlling the operation of the communication terminal 50. This communication terminal program is installed in a predetermined installation folder (not shown) in the memory unit 50c by the operator operating the display screen 50d of the communication terminal 50 in advance. Therefore, the communication terminal program displays instructions on the operations that the operator should perform when using the utility pole replacement survey support device 1, as well as image templates necessary for the operations, on the display screen 50d.

[0021] The acquisition unit 2 acquires images taken by the camera 50b of the communication terminal 50 of the existing utility poles that are to be replaced and the existing equipment installed on these existing utility poles, from the transmitting and receiving unit 50e of the communication terminal 50 via the network N. Display screen 3 displays the same images as those displayed on display screen 50d of the communication terminal 50.

[0022] The control unit 4 is a central processing unit that controls the operation of the utility pole replacement survey support device 1, and comprises a ratio calculation unit 5, a new installation image creation unit 6, a layout image creation unit 7, and a distance calculation unit 8. The memory unit 9 includes an acquired image storage unit 10 that stores images acquired by the acquisition unit 2, an image template storage unit 11 that stores image templates which are AR images of newly installed utility poles and newly installed equipment installed on these new utility poles, a new installation image storage unit 12 that stores images of newly installed utility poles and newly installed equipment described later, a layout image storage unit 13 that stores layout images described later, and a main memory unit 14 that stores information other than that stored in the acquired image storage unit 10 to the layout image storage unit 13. The transmitting unit 15 transmits the layout image, the first actual distance, and the second actual distance to the communication terminal 50 via the network N.

[0023] Next, the configuration of the control unit 4 will be described. The ratio calculation unit 5 calculates the ratio of the first known dimension to the first number of pixels based on the image acquired by the acquisition unit 2, the first known dimension of the existing utility pole or existing equipment, and the first number of pixels corresponding to the first known dimension. The calculated ratio is stored in the main memory unit 14.

[0024] The new image creation unit 6 calculates a second number of pixels corresponding to the second known dimensions based on the second known dimensions of the new utility pole template included in the image template stored in the new image storage unit 12 and the ratio calculated by the ratio calculation unit 5, and creates a new utility pole image adjusted to the second number of pixels. Furthermore, the new installation image creation unit 6 calculates a third number of pixels corresponding to the third known dimension based on the third known dimension of the new equipment template included in the image template and the ratio calculated by the ratio calculation unit 5, and creates a new equipment image adjusted to the third number of pixels. The created new utility pole image and new equipment image are stored in the new installation image storage unit 12.

[0025] The layout image creation unit 7 creates a layout image by placing the image of the newly installed equipment between the existing equipment and the image of the newly installed utility pole on the image acquired by the acquisition unit 2. The created layout image is stored in the layout image storage unit 13 and transmitted to the communication terminal 50.

[0026] The distance calculation unit 8 detects, on the layout image created by the layout image creation unit 7, at least one of the following: a first number of new pixels corresponding to the first interval between the new equipment image created by the new equipment image creation unit 6 and the existing equipment, and a second number of new pixels corresponding to the second interval between the new equipment image and the new utility pole image created by the new equipment image creation unit 6. The first and second intervals are set on the display screen 50d of the communication terminal 50. Furthermore, the distance calculation unit 8 calculates a first actual distance for a first interval based on the first number of newly added pixels and the ratio, and calculates a second actual distance for a second interval based on the second number of newly added pixels and the ratio. The calculated first and second actual distances are stored in the arrangement image storage unit 13 and transmitted to the communication terminal 50.

[0027] Next, the method for supporting utility pole replacement survey work performed by the utility pole replacement survey work support device will be explained using Figures 2 and 3. Figures 2 and 3 are process diagrams of the utility pole replacement survey work support method. As shown in Figures 2 and 3, the utility pole replacement survey support method 20 comprises the image acquisition step S21, the ratio calculation step S22, the new installation image creation step S23, the layout image creation step S24, the actual distance calculation step S25, and the transmission step S26. Each step will be explained below.

[0028] As shown in Figure 2, the image acquisition step S21 is a step in which the acquisition unit 2 acquires images taken by the camera 50b of the communication terminal 50 of existing utility poles and existing equipment from the communication terminal 50.

[0029] The ratio calculation process in S22 comprises the first known dimension position acquisition process in S22-1, the first pixel count acquisition process in S22-2, and the calculation process in S22-3. Of these, the first known dimension position acquisition process in S22-1 is a process in which the acquisition unit 2 acquires the position of the first known dimension. In detail, the position of the first known dimension is determined by the person in charge of the survey work (hereinafter referred to as "person in charge") by specifying its endpoints on the image displayed on the display screen 50d. The position information of these endpoints is transmitted by the transmitting / receiving unit 50e to the acquisition unit 2, and the acquisition unit 2 transmits it to the ratio calculation unit 5.

[0030] The first pixel count acquisition step in S22-2 is a step in which the ratio calculation unit 5 acquires a first pixel count corresponding to a first known dimension. The ratio calculation unit 5 detects the number of pixels between the endpoints from the position information of the endpoints transmitted from the acquisition unit 2 and sets it as the first pixel count.

[0031] In the calculation step S22-3, the ratio calculation unit 5 calculates the ratio R of the first known dimension to the first number of pixels, based on the first known dimension and the first number of pixels. That is, the ratio R is (first known dimension) / (first number of pixels) [cm / number of pixels].

[0032] Here, the first known dimension will be explained using Figures 4 and 5. Figure 4 is a front view image of the existing utility pole and existing equipment, taken from the front. Figure 5 is a right side view image of the existing utility pole and existing equipment, taken from the right side. As shown in Figures 4 and 5, images 30A and 30B show the existing utility pole 31 and existing equipment 32, taken from the front and right side, respectively. In both the front and right side images, the width of the existing utility pole 31 is X, the depth is Y, and the height is Z. The existing equipment 32 consists of a crossarm 32a that holds the power transmission line 33, a pole-mounted transformer 32b, a retaining bracket 32c that holds the pole-mounted transformer 32b, and scaffolding bolts 32d. The first known dimension L is the actual distance (cm) between the two scaffolding bolts 32d, 32d that are installed along the vertical direction of the existing utility pole 31.

[0033] Returning to Figure 2, the S23 new installation image creation process is a process in which the new installation image creation unit 6 creates a new utility pole image and a new equipment image, and comprises the S23-1 new utility pole position acquisition process, the S23-2 image template acquisition process, the S23-3 template pixel count calculation process, and the S23-4 new utility pole image creation process. The S23-1 process for acquiring the location of a newly installed utility pole is a process in which the acquisition unit 2 acquires the reference position of an existing utility pole and the erection position of the new utility pole relative to this reference position, which are input on the display screen 50d of the communication terminal 50. The reference position is indicated by the symbol K0 shown in Figures 4 and 5, and is set at the base of a specific scaffolding bolt 32d. Specifically, both the reference position and the erection position of the new utility pole are two-dimensional coordinate values ​​on the XY plane. The reference position K0 is (0,0), and the erection position is (x,y) away from the reference position K0, so the x (cm) and y (cm) values ​​determined during the survey are entered on the display screen 50d. The acquired reference position and the erection position of the new utility pole are stored in the acquired image storage unit 10 along with the image.

[0034] The image template acquisition process in S23-2 is a process in which the acquisition unit 2 acquires a new utility pole template and a new equipment template selected from a plurality of image templates displayed on the display screen 50d of the communication terminal 50. The new utility pole template and the new equipment template are associated with a second known dimension and a third known dimension of a predetermined straight line, respectively.

[0035] In the template pixel count calculation process of S23-3, the new image creation unit 6 calculates the number of pixels corresponding to x and y based on the pole installation position (x, y) of the new utility pole and the ratio R. Furthermore, the new image creation unit 6 calculates a second number of pixels corresponding to the second known dimension based on the second known dimension of the new utility pole template and the ratio R, and also calculates a third number of pixels corresponding to the third known dimension based on the third known dimension of the new equipment template included in the image template and the ratio R. The number of pixels corresponding to x and y, the second number of pixels, and the third number of pixels are stored in the new image storage unit 12.

[0036] The S23-4 process for creating images of newly installed utility poles, etc., is a process in which the new installation image creation unit 6 creates an image of a newly installed utility pole in which the second known dimensions are adjusted to the second number of pixels, and an image of newly installed equipment in which the third known dimensions are adjusted to the third number of pixels. The created images of newly installed utility poles and newly installed equipment are stored in the new installation image storage unit 12. After this process, the S24 process for creating the layout image shown in Figure 3 is executed.

[0037] As shown in Figure 3, the S24 layout image creation step is a step in which the layout image creation unit 7 creates a layout image in which the image of the newly installed equipment is placed between the existing equipment and the image of the newly installed utility pole. At this time, the image of the newly installed utility pole is placed according to the number of pixels corresponding to the pole installation position (x, y) of the newly installed utility pole, which was calculated in the template pixel count calculation step of S23-3. Furthermore, the layout image is stored in the layout image storage unit 13 and displayed on the display screen 50d of the communication terminal 50. The method for placing the image of the newly installed equipment between the existing equipment and the image of the newly installed utility pole is a known method.

[0038] The S25 actual distance calculation process comprises the S25-1 interval acquisition process and the S25-2 calculation process. The S25-1 interval acquisition process is a process in which the distance calculation unit 8 acquires a first interval between the newly installed equipment image and the existing equipment, and a second interval between the newly installed equipment image and the newly installed utility pole image, on the layout image. The first and second intervals are determined by specifying the endpoints of each on the display screen 50d of the communication terminal 50. The acquisition unit 2 acquires the positional information of each endpoint of the first and second intervals and transmits it to the distance calculation unit 8. In the calculation step S25-2, the distance calculation unit 8 detects at least one of the first number of newly added pixels corresponding to the first interval and the second number of newly added pixels corresponding to the second interval. The detected first number of newly added pixels and the second number of newly added pixels are stored in the arrangement image storage unit 13 together with the arrangement image. Furthermore, the distance calculation unit 8 calculates at least one of the first actual distance for the first interval and the second actual distance for the second interval. The first actual distance is calculated based on the first number of newly added pixels and the ratio R, and the second actual distance is calculated based on the second number of newly added pixels and the ratio R. At least one of the first and second actual distances is stored in the arrangement image storage unit 13 together with the arrangement image.

[0039] The transmission process in S26 is the process in which the transmission unit 15 transmits at least one of the first actual distance and the second actual distance to the communication terminal 50. The transmitted first actual distance and the second actual distance are displayed on the display screen 50d along with the layout image. This completes the utility pole replacement survey work support method 20.

[0040] Next, the layout images will be explained using Figures 6 and 7. Figure 6 is the layout image corresponding to the front view image in Figure 4. Figure 7 is the layout image corresponding to the right side view image in Figure 5. As shown in Figure 6, the arrangement image 40A, the positions of the first intervals d1 and d2, and the first actual distances D1 and D2 are displayed on the display screen 50d of the communication terminal 50 (see Figure 1), respectively. The new equipment image 42 consists of the crossarm 42a, the pole-mounted transformer 42b, the retaining bracket 42c that holds the pole-mounted transformer 42b, and the scaffolding bolts 42d, which are positioned between the existing utility pole 31 and the new utility pole image 41, and overlapping the new utility pole image 41. Note that in Figure 6, the reference position K0 is in the X direction, and the number of pixels P corresponding to x is x It is located at a considerable distance and, like the reference position K0, is represented by two-dimensional coordinate values.

[0041] As shown in Figure 7, the arrangement image 40B, the positions of the first intervals d3 and d4, and the first actual distances D3 and D4 are displayed on the display screen 50d of the communication terminal 50 (see Figure 1), respectively. The position of the second interval d5 and the second actual distance D5 are also displayed on the display screen 50d. Note that the layout image 40B in Figure 7 is obtained by performing the utility pole replacement survey support method 20 before or after obtaining the layout image 40A in Figure 6. Therefore, the ratio R may differ between layout image 40A and layout image 40B. Also, the symbol K1' represents the number of pixels P corresponding to y in the Y direction when the reference position K0 is in the Y direction in Figure 7. Y It is located at a considerable distance and, like the reference position K0, is represented by two-dimensional coordinate values.

[0042] As explained above, with the utility pole replacement survey support device 1, it becomes possible to visually confirm on the layout images 40A and 40B whether the new equipment image 42 can be placed between the existing utility pole 31 and the new utility pole image 41, thus enabling the accurate determination of the pole installation location during the survey work. Therefore, the pole installation location can be visually confirmed, and the need to redo work after the construction plan has been finalized or to re-determine the pole installation location can be avoided. Furthermore, since at least one of the first actual distance and the second actual distance is displayed as a numerical value, it is possible to determine with greater accuracy whether the newly installed equipment image 42 can be placed between the existing equipment 32 and the newly installed utility pole image 41, compared to relying solely on visual inspection. Furthermore, since the first and second actual distances can be obtained by taking images without the need for a rangefinder, survey work can be carried out with less workload.

[0043] In addition, since the layout image, the first actual distance, and at least one of the second actual distances can be simultaneously viewed on the display screen 50d of the communication terminal 50, the construction personnel can accurately determine whether the pole installation location is feasible. Furthermore, as shown in Figures 6 and 7, since the existing utility pole 31 and existing equipment 32 are photographed from two directions, either or both of the first and second actual distances can be reliably calculated. Therefore, rework after the construction plan is finalized can be prevented even more effectively.

[0044] It should be noted that the utility pole replacement survey support device according to the present invention is not limited to those shown in the embodiments. For example, in one arrangement image, only the second actual distance for the second interval may be calculated. [Industrial applicability]

[0045] This invention can be used as a utility pole replacement survey support device to assist with survey work carried out before the replacement of utility poles. [Explanation of symbols]

[0046] 1…Utility pole replacement survey support device 2…Acquisition unit 3…Display screen 4…Control unit 5…Ratio calculation unit 6…New installation image creation unit 7…Layout image creation unit 8…Distance calculation unit 9…Storage unit 10…Acquisition image storage unit 11…Image template storage unit 12…New installation image storage unit 13…Layout image storage unit 14…Main storage unit 15…Transmission unit 20…Utility pole replacement survey support method 30A,30B…Image 31…Existing utility pole 32…Existing equipment 33…Transmission line 40A,40B…Layout image 41…New utility pole image 42…New equipment image 32a,42a…Crossarm 32b,42b…Pole-mounted transformer 32c,42c…Holding bracket 32d,42d…Scaffolding bolt 50…Communication terminal 50a…Control unit 50b…Camera 50c...Memory unit 50d...Display screen 50e...Transmit / receive unit

Claims

1. A utility pole replacement survey support device that assists in survey work carried out before the replacement of utility poles, An acquisition unit that acquires images of existing utility poles and existing equipment installed on these existing utility poles from a communication terminal, A ratio calculation unit calculates the ratio of the first known dimensions to the first number of pixels based on the image, the first known dimensions of the existing utility pole or the existing equipment, and the first number of pixels corresponding to the first known dimensions. A new image creation unit calculates a second number of pixels corresponding to the second known dimension based on the second known dimension of the new utility pole template included in the image template and the ratio, and calculates a third number of pixels corresponding to the third known dimension based on the third known dimension of the new equipment template included in the image template and the ratio, and creates a new utility pole image and a new equipment image adjusted to the second and third number of pixels, respectively. A layout image creation unit creates a layout image in which the image of the newly installed equipment is placed between the existing equipment and the image of the newly installed utility pole on the aforementioned image. A utility pole replacement survey support device characterized by comprising a transmission unit that transmits the aforementioned arrangement image to the communication terminal.

2. The system includes a distance calculation unit that detects at least one of a first number of newly installed pixels corresponding to a first interval between the newly installed equipment image and the existing equipment, and a second number of newly installed pixels corresponding to a second interval between the newly installed equipment image and the newly installed utility pole image, and calculates at least one of a first actual distance for the first interval and a second actual distance for the second interval. The first actual distance is calculated based on the first number of newly installed pixels and the ratio. The second actual distance is calculated based on the second number of newly installed pixels and the ratio. The utility pole replacement survey support device according to claim 1, characterized in that the transmitting unit transmits at least one of the first actual distance and the second actual distance to the communication terminal, respectively.

3. The aforementioned communication terminal is equipped with a display screen, The utility pole replacement survey support device according to claim 2, characterized in that the arrangement image, the first actual distance, and the second actual distance are displayed on the display screen, respectively.

4. The utility pole replacement survey support device according to claim 1 or 2, characterized in that the images are photographs of the existing utility pole and the existing equipment taken from at least two directions.

Images