JP7202805B2 - Construction record program - Google Patents

Description

Application of Article 30, Paragraph 2 of the Patent Law National Liaison Committee for Electrical Safety, 53rd Electricity-Related Business Safety Seminar Text, July 19, 2018 53rd Electricity-Related Business Safety Seminar, July 27, 2018

The present invention relates to a construction recording program for controlling a portable terminal used to record construction site conditions.

2. Description of the Related Art Conventionally, at a construction site, a documentary photograph is taken to confirm that the construction work has been carried out properly. At this time, in addition to the object to be constructed, a blackboard with information such as the subject of the construction, date, and builder, and a scale (rule, measure) to indicate the size of the object are shown. is common. For example, a blackboard as shown in Japanese Patent Laid-Open No. 2002-300000 has been proposed as a device for use in such record photography. The scale is attached to the blackboard, and the blackboard is provided with fixed support rods. By fixing the blackboard to the object with the fixed support rods, the blackboard and the scale can be copied together with the object. It can be entered.

Registered Utility Model No. 3113327

However, it takes time and effort to set up a blackboard and a scale and take pictures. In addition, after the construction was completed, it was necessary to read the descriptions on the blackboard in the photos and transcribe them into the report, which took time and effort, and there was a risk of making mistakes in the process. In addition, it was troublesome to transcribe the items written on the blackboard. Furthermore, such blackboards and scales have to be larger than a certain size because letters and numbers must be legible in the photographs taken. Therefore, it takes a lot of labor to carry them and hold them during shooting.

The present invention has been made in view of such circumstances, and provides a construction recording program for controlling a portable terminal that is used in place of the blackboards and scales conventionally used for construction recording. With the goal.

The first aspect of the present invention (construction recording program) is used for recording the conditions of a construction site, and comprises a photographing unit for photographing an object of construction, and a a construction information input receiving step of receiving input of information about construction in a portable terminal having a display unit for displaying an image displayed thereon and an input unit for receiving operation input; a photographing step of photographing an object by a photographing unit to acquire an image and display the image on the display unit; a marker detection step of detecting whether an AR marker exists in the image; and a calculating step of calculating the position and orientation of the AR marker, and displaying a scale on the image according to the position and orientation of the AR marker on the display unit , wherein the scale is the center of the AR marker. and a scale display step extending along the long side direction of the rectangular AR marker with respect to the origin . Here, the information about the construction includes the subject of the construction, the date, the builder, the place, the object, etc. (this is an example and does not necessarily include these), and distinguishes the construction from other construction. It is information for The scale is a belt-like thing displayed on the display unit, and has scales arranged at equal intervals along the longitudinal direction and numbers that increase every predetermined number of scales from a certain scale as an origin. It is.

According to a second aspect of the present invention, the present invention is used to record the situation of a construction site, and comprises a photographing unit for photographing an object of construction and a display for displaying an image photographed by the photographing unit. and an input unit for accepting operation input, a construction information input reception step for accepting input of information about construction, and an object being captured by the photographing unit in response to an operation input to the input unit. a photographing step of capturing an image and displaying it on the display unit; a marker detecting step of detecting whether an AR marker exists in the image; a calculation step of calculating; a scale display step of superimposing a scale on the image according to the position and orientation of the AR marker and displaying the scale on the display unit; and a scale selection step of selecting the type. Here, the type of scale is distinguished by the way graduations/numbers are added and the shape of the scale. For example, the origin is at the end of the scale and numbers increase in one direction, while the origin is in the center of the scale and numbers increase in both directions. There are many things. Moreover, the shape of the scale includes a linear shape, a curved shape, a curved shape, and the like. When the mobile terminal selects one scale from all possible types of scales based on various information, the mobile terminal selects all possible types of scales. This includes all the cases where the operator selects a plurality of scales based on various information and accepts selection inputs from the scales. Furthermore, the selection input here includes both the case of selecting one of the scales displayed side by side on the display section and the case of switching the scales displayed on the display section.

According to the invention of claim 3 of the present invention, the scale extends in one direction, and the scale displayed on the display unit is displayed on the portable terminal according to an operation input to the input unit. It is characterized by executing a scale reversal step of reversing the direction of extension and displaying it. Here, the direction in which the scale extends is the longitudinal direction of the scale and the direction in which the attached numbers increase.

According to a fourth aspect of the present invention, there is provided a scale moving step of causing the mobile terminal to move the scale displayed on the display unit to an arbitrary position and display the scale according to an operation input to the input unit. and a scale fixing step of fixing the relative position of the moved scale with respect to the AR marker after the operation input is completed.

According to the invention of claim 5 of the present invention, it is used for recording the situation of a construction site, and comprises a photographing unit for photographing an object of construction and an image photographed by the photographing unit. a construction information input receiving step of receiving input of information about construction in a portable terminal having a display unit and an input unit receiving operation input; to acquire an image and display it on the display unit; a marker detection step of detecting whether an AR marker exists in the image; and if the AR marker exists, its position and orientation a scale display step of superimposing a scale extending in one direction on the image according to the position and orientation of the AR marker and displaying it on the display unit; and according to an operation input to the input unit, and a scale reversing step of reversing the extending direction of the scale displayed on the display unit.

The sixth aspect of the present invention is used for recording the situation of a construction site, and includes a photographing unit for photographing an object of construction and an image photographed by the photographing unit. a construction information input receiving step of receiving input of information about construction in a portable terminal having a display unit and an input unit receiving operation input; to acquire an image and display it on the display unit; a marker detection step of detecting whether an AR marker exists in the image; and if the AR marker exists, its position and orientation a scale display step of superimposing a scale on the image according to the position and orientation of the AR marker and displaying it on the display unit; executing a scale moving step of moving the displayed scale to an arbitrary position and displaying it, and a scale fixing step of fixing the relative position of the moved scale with respect to the AR marker after the operation input is completed. Characterized by

According to the invention of claim 1 of the present invention, the information about the construction that was conventionally written on the blackboard is input to the mobile terminal, so the blackboard is unnecessary. Also, since the scale is displayed on the display unit of the mobile terminal according to the AR marker, the actual scale is not required. Therefore, there is no need to set up a blackboard or a scale, and photography can be easily performed without taking time and effort. In addition, since the information about the construction work is input to the portable terminal, there is no need to transcribe the information later. In addition, since only the portable terminal and the AR marker are required for recording the construction work, it is easy to carry and hold during shooting.

According to the invention of claim 2 of the present invention, the type of scale to be displayed is selected according to the content of the construction work (the shape of the object, etc.) Both are present), so the recorded photograph (image) becomes easier to understand. If the scale were a real object, many kinds of scales would have to be prepared, which would take a lot of time and effort to handle.

According to the invention of claim 3 or 5 of the present invention, the direction in which the scale extends can be easily switched according to the photographed object. Therefore, even if the shooting direction of the object is restricted, if the direction in which the scale extends is switched according to the direction of the shot object, the recorded photograph (image) becomes easier to understand.

According to the invention of claim 4 or 6 of the present invention, the scale is basically displayed at the position of the AR marker. may not be retained. Even in such a case, the position of the scale can be easily adjusted on the display section. After moving the scale, the relative position with respect to the AR marker is fixed, so that the orientation and position of the mobile terminal can be changed to adjust the shooting angle and the like.

4 is a flow chart of a construction recording program of the present invention; (a) to (d) are explanatory diagrams of electric wire connection work (when electric wires are connected to a power transmission tower). 2 is a hardware configuration diagram of a mobile terminal; FIG. FIG. 10 is a construction subject selection screen displayed on the display unit of the mobile terminal; FIG. It is a construction content selection screen displayed on the display part of a portable terminal. It is a shooting screen displayed on the display unit of the mobile terminal. It is a value input screen after compression displayed on the display part of a portable terminal. FIG. 10 shows a post-compression value input screen displayed on the display unit of the mobile terminal, showing a state in which a warning is superimposed. It is an explanatory view showing a report. (a) to (d) are explanatory diagrams of wire connection work (when wires are connected to each other). (a) to (d) are explanatory diagrams showing scales displayed according to objects.

Specific contents of the present invention will be described below. The portable terminal and AR marker controlled by the construction recording program of the present invention can be used in various construction works. Here, the case of use in the construction of connecting electric wires on a power transmission tower will be shown.

First, the contents of the construction will be explained. Clamps (coating members) are attached to the ends of wires when new or replaced wires are connected to transmission towers.

Although there are various types of electric wires, the case of steel core aluminum stranded wire (ACSR) is shown here. As shown in FIG. 2(a), the electric wire 1 is composed of a steel core wire 2 in the center and an aluminum stranded wire 3 in the outer periphery. At the end of the electric wire 1, the aluminum strand 3 is stripped off and the steel core wire 2 protrudes. In addition, an inner insertion mark 21 is attached by coloring at a predetermined length from the end of the steel core wire 2 . In addition, an outer insertion mark 31 is colored at a predetermined length from the end of the aluminum strand 3, and an auxiliary mark 32 is colored at a predetermined length from the outer insertion mark 31. There is.

The clamp consists of two members, a steel clamp 4 located on the inner peripheral side and an aluminum clamp 5 located on the outer peripheral side. As shown in FIG. 2( a ), the steel clamp 4 is rod-shaped and has an insertion hole 41 formed in one end face, and is connected to an insulator metal fitting provided on a power transmission tower at the other end. A connection hole 42 is formed for this purpose. On the other hand, the aluminum clamp 5 has a tubular shape that is longer and thicker than the steel clamp 4 .

A specific procedure for attaching the steel clamp 4 and the aluminum clamp 5 to the electric wire 1 is as follows.
1. As shown in FIG. 2(a), the end of the electric wire 1 is inserted into the aluminum clamp 5 and penetrated.
2. The end of the steel core wire 2 is inserted into the insertion hole 41 of the steel clamp 4 . However, the length for inserting the steel core wire 2 is from the end to the inner insertion mark 21 . Let this length be the insertion length T. Also, the length from the end of the steel clamp 4 on the side of the insertion hole 41 (inner insertion mark 21) to the end of the aluminum stranded wire 3 is defined as a reference value a, and the total length of the steel clamp 4 (excluding the connection hole 42 portion) is be _l1 .
3. As shown in FIG. 2(b), the steel clamp 4 in which the steel core wire 2 is inserted is compressed from the outer peripheral side. Thereby, the steel core wire 2 and the steel clamp 4 are integrated. By compressing and plastically deforming the steel clamp 4, the _total length l2 after compression becomes longer and the reference value b becomes shorter than before compression.
4. As shown in FIG. 2(c), the aluminum clamp 5 is moved to the end portion side of the electric wire 1 so that the aluminum stranded wire 3 and the steel clamp 4 are covered with each other. At this time, the end of the aluminum clamp 5 on the side of the aluminum strand 3 is aligned with the outer insertion mark 31 . However, the length from the end (outside insertion mark 31) of the aluminum clamp 5 on the aluminum wire 3 side to the auxiliary mark 32 is defined as a reference value c, and the total length of the aluminum clamp ₅ is defined as L1.
5. As shown in FIG. 2(d), the aluminum clamp 5 in which the aluminum strand 3 and the steel clamp 4 are inserted is compressed from the outer peripheral side. As a result, the aluminum strand 3, the steel clamp 4, and the aluminum clamp 5 are integrated. By compressing and plastically deforming the aluminum clamp 5, the _total length L2 after compression becomes longer and the reference value d becomes shorter than before compression.

In this way, the steel clamp 4 and the aluminum clamp 5 are attached to the electric wire 1. In order to confirm that these processes were performed reliably, the insertion length T and the total length l of the steel clamp 4 before and after compression were measured. ₁ , l2, reference values a, _b , total _lengths L1, L2 of the aluminum clamp ₅ before and after compression, and reference values c, d.

In addition to the work of attaching a clamp to the electric wire, for example, a work of attaching a jumper socket to the jumper wire is also performed, but a detailed description thereof will be omitted here.

Next, a mobile terminal controlled by the construction recording program of the present invention will be described. The mobile terminal 10 is composed of a smartphone or a tablet, and as shown in the hardware configuration diagram of FIG. A display 12 as a display unit for displaying images, a touch panel 13 as an input unit for receiving operation inputs, a CPU 14 for sequentially executing program instructions, and a storage device (memory) 15 for storing programs and other data. , has a communication device 16 for connecting to the Internet. The display 12 and the touch panel 13 are integrally formed, and the buttons displayed on the display 12 function as an input section through the touch panel 13 . Further, as an input unit, in addition to the touch panel 13, an operation mechanism such as a mechanical button may be provided. In addition, since mobile terminals are often used outdoors, it is desirable to have a waterproof function.

Next, an AR marker used in combination with the mobile terminal will be described. In the first place, AR is an abbreviation of “Augmented Reality”, and it is a technique that virtually augments reality by displaying a virtual image superimposed on a real landscape. As will be described later, the AR marker is a diagram (image) for recognizing its position and orientation by the construction recording program of the present invention, which is captured by the camera of the mobile terminal, and is a virtual image. is the standard for displaying In general, AR markers in an AR system can be anything, such as figures, images, and photographs. Specifically, two square two-dimensional codes are arranged to form a rectangle. In addition, although the size is not necessarily limited, it is made of a resin plate that is approximately the same size as the mobile terminal (a resin plate with a two-dimensional code printed on it, or a sticker with a two-dimensional code printed on it). It is convenient to carry it with a mobile terminal, and it is also water resistant, so it is desirable.

Next, the specific contents of the construction record program of the present invention will be described. FIG. 1 is a flow chart showing the processing flow of this program. This program (application) is installed in the mobile terminal, and each process is sequentially executed by activating the program.

First, the program causes the portable terminal to execute construction information input reception step S1. In the construction information input receiving step S1, input of information about construction is received. Here, the information about the construction includes the subject of the construction, the builder, the line name of the transmission line, the tower number, the object of the construction (clamp, jumper socket, etc.), and the like. However, information on these construction works must be entered in advance on a personal computer separate from the mobile terminal using spreadsheet software, etc., and the entered data will be sent via email or other means. is transmitted to the mobile terminal, input, and stored in the storage device. By doing so, it is possible to input information more efficiently than directly inputting it into the portable terminal.

Further, the construction information input reception step S1 includes a pre-compression value input reception step S2. In the pre-compression value input receiving step S2, the input of each numerical value before performing the compression work is received. ₁ and the reference value a before compression, and if the object of construction is an aluminum clamp, the _total length L1 of the aluminum clamp before compression and the reference value c before compression. Since these are predetermined values, they are input in a personal computer together with the construction target (the worker may input them, or the preset values corresponding to the target are automatically set). may be input), is transmitted to the mobile terminal and input.

When the information about these construction works is input, a construction subject name selection screen 100 is displayed on the display of the portable terminal as shown in FIG. On the construction subject selection screen 100, construction subjects 101 under construction are lined up. When the construction subject 101 is touched with a finger or a stylus, the program causes the mobile terminal to execute the construction content selection acceptance step S3, and the screen changes to that shown in FIG. 5, the screen is switched to the construction content selection screen 200 shown in FIG. The construction content selection screen 200 displays the details of the selected construction. More specifically, the construction subject name 201, track name 202, tower number 203, line (1L, 2L) 204, object 205, and phase division. (upper phase, middle phase, lower phase) 206 is displayed. Of these, the line name 202, tower number 203, line 204, and object 205 are displayed as options when the respective portions are touched. This option is based on the information input in the previous construction information input receiving step S1. From these options, the contents of the construction to be recorded can be selected, and the selection is accepted and stored in the storage device.

Next, the program causes the mobile terminal to perform scale selection step S4. In the scale selection step S4, according to the information of the object in the construction content selected in the previous construction content selection reception step S3 (and the information about the construction input in the construction information input reception step S1) , the type of scale that will be displayed later is selected. That is, since the shape of the object is known in advance, a scale having a shape that matches the shape of the object is selected. Note that no information about the selected scale is shown on the display at this point. If the object is the above steel clamp, aluminum clamp or jumper socket, a linear scale extending in one direction is selected, the details of which will be described later. Also, scales having different shapes will be described later.

Next, when a phase to be recorded is selected and touched from among the three phase divisions 206 on the construction content selection screen 200, the program causes the portable terminal to execute the photographing step S5. In the photographing step S5, the camera is activated and a photographing screen 300 is displayed on the display as shown in FIG. On the photographing screen 300, a photographed image 301 photographed by a camera is displayed (FIG. 6 shows a state in which the compressed aluminum clamp 5 is photographed), and a shutter button is displayed around the photographed image 301. Buttons 302, a zoom-in/zoom-out button 303, a brightness adjustment button 304, and the like are displayed for exhibiting functions similar to those of a general digital camera. Furthermore, a reversal button 305 that functions in a scale reversal step S9, which will be described later, is displayed in the upper right part of the photographing screen 300, and two angle adjustment buttons 306 that function in a scale angle adjustment step S10, which will be described later, are displayed on both sides of the photographed image 301. Is displayed.

Next, the program causes the mobile terminal to execute a marker detection step S6. In the marker detection step S6, it is detected whether an AR marker exists in the image captured by the camera. If no AR marker is present, the detection is repeated.

Then, if an AR marker exists in the image in the marker detection step S6, the program causes the mobile terminal to execute the calculation step S7. In the calculation step S7, the position and orientation of the AR marker made up of the two-dimensional code are calculated. A specific calculation method is based on a known method, and detailed description thereof is omitted here.

Next, the program causes the portable terminal to execute a scale display step S8. In the scale display step S8, the scale S is displayed on the display superimposed on the captured image 301 according to the position and orientation of the AR marker M calculated in the calculation step S7. In FIG. 6, an AR marker M is projected adjacent to the aluminum clamp 5, and a scale S is displayed at the position of the AR marker M. As shown in FIG. The scale S is linear and strip-shaped, and has scales arranged at equal intervals along the longitudinal direction and numbers that increase every predetermined number of scales from a certain scale as an origin. The origin of the scale S is located at the center of the AR marker M, the long side direction of the rectangular AR marker M is aligned with the longitudinal direction of the scale S, and the scale S extends in one longitudinal direction. (increasing numbers). In FIG. 6, the scale S extends from left to right (however, the left side of the origin is also numbered). Further, the scale S is provided with an arrow Sa pointing to the origin, so that the position of the origin on the captured image 301 is easier to understand.

FIG. 11(a) shows the aluminum clamp 5, the electric wire 1, and the scale S, which are objects of interest, and shows a desirable photographing state. The origin of the scale S is aligned with the end of the aluminum clamp 5, and the extending direction of the scale S is aligned with the direction in which the aluminum clamp 5 and the wire 1 extend from the end.

Next, the program causes the mobile terminal to perform a scale inversion step S9. In the scale reversal step S9, by touching the reversal button 305 displayed on the display, the scale S displayed on the display is displayed with its extending direction reversed. For example, in FIG. 6, the scale S extends from the left to the right (the number increases). If the reversal button 305 is touched here, the scale S extends from the right to the left without changing the position of the origin. direction. Further, when the reversal button 305 is touched again, the original orientation is returned. By appropriately inverting the scale S according to the direction of the photographed object, the image can be made easier to understand.

FIG. 11(b) shows a case where the directions of the aluminum clamp 5 and the wire 1 are opposite to those in FIG. 11(a), and the scale S is reversed accordingly.

Next, the program causes the portable terminal to execute scale angle adjustment step S10. In the scale angle adjustment step S10, by touching the angle adjustment button 306 displayed on the display, the scale S displayed on the display is displayed by changing the angle of its extending direction with respect to the horizontal direction. For example, in FIG. 6, the scale S is inclined downward to the left, but if the left angle adjustment button 306 is touched here, the scale S is slightly rotated counterclockwise and the inclination angle with respect to the horizontal direction is increased. . Also, when the right angle adjustment button 306 is touched, the scale S rotates slightly clockwise and the inclination angle with respect to the horizontal direction becomes smaller. By appropriately adjusting the angle of the scale S according to the inclination of the photographed object, the image becomes easier to understand. good too.

Next, the program causes the portable terminal to execute scale movement step S11. In the scale movement step S11, the scale S displayed on the display is touched and dragged (slid) to move the scale S to an arbitrary position on the display. Then, when the operation input is finished, that is, when the finger or stylus that has been in touch is released, the program causes the portable terminal to execute the scale fixing step S12. In the scale fixing step S12, the relative position of the scale S moved on the display in the scale moving step S11 with respect to the AR marker M is fixed. Therefore, when the mobile terminal is moved thereafter to move the position of the AR marker M on the display, the scale S moves without changing its relative position to the AR marker M. If the scale S is touched again, the program causes the portable terminal to execute the scale movement step S11 again, and the scale S can be moved. By appropriately moving the scale S according to the position of the photographed object, the image becomes easier to understand. It doesn't have to be.

Then, when the shutter button 302 displayed on the display is touched, the program causes the portable terminal to execute the image saving step S13. In the image saving step S13, the photographed image 301 displayed on the display when the shutter button 302 is touched (displayed with the scale S superimposed) is saved in the storage device. Note that the file name and storage folder name of the image data to be stored are automatically generated based on the tower number, the phase of the electric wire, and the construction target.

Next, the program causes the portable terminal to execute post-compression value input reception step S14. In the post _- compression value input reception step S14, the input of each numerical value after the compression work is received. It is the later reference value b, and if the object of construction is an aluminum clamp, it is the _total length L2 of the aluminum clamp after compression and the reference value d after compression. These are actually measured using a folded rule after compression work. When the post-compression value input receiving step S14 is executed, the camera is stopped and the screen is switched from the shooting screen 300 to the post-compression value input screen 400 as shown in FIG. On the post-compression value input screen 400, construction information 401 such as tower number, line, phase division, etc., and objects (clamps, jumper sockets, etc.) 402 are displayed. FIG. 7 shows the case where the object 402 is an aluminum clamp, and furthermore, the _total length L1 of the aluminum clamp before compression and the reference value c before compression, which were input in the previous step S2 for inputting the value before compression, are shown. is displayed. Along with these values before compression, input fields 403 for the _total length L2 of the aluminum clamp after compression and the reference value d after compression are displayed. This input field 403 is touched to directly input the actually measured value. Furthermore, a register button 404 and a return button 405 are displayed on the post-compression value input screen 400 . When the return button 405 is touched, the screen switches from the post-compression value input screen 400 to the photographing screen 300 .

Then, when the registration button 404 is touched after entering the value in the input field 403, the program causes the portable terminal to execute the comparison step S15. In the comparison step S15, the pre-compression and post-compression values of the length of the covering member (steel clamp, aluminum clamp, jumper socket, etc.) and the pre-compression and post-compression reference values are compared. Then, if the value of the length of the covering member after compression is greater than the value before compression and the value of the reference value after compression is less than the value before compression, it is determined to be normal (OK), and the length of the covering member If the post-compression value of is smaller than the pre-compression value and/or if the post-compression value of the reference value is greater than the pre-compression value, it is determined to be abnormal (NG). That is, in the case of a steel clamp, if l ₁ >l ₂ (total length before and after compression) and/or a<b (reference value before and after compression), it is NG. Also, in the case of an aluminum clamp, if L ₁ >L ₂ (total length before and after compression) and/or c<d (reference value before and after compression), the result is NG. If the judgment result is OK, those input values are accepted as they are and stored in the storage device.

Then, if the determination result in the comparison step S15 is NG, the program causes the portable terminal to execute a warning display step S16. In the warning display step S16, as shown in FIG. 8, a warning 406 is displayed superimposed on the post-compression value input screen 400 to notify that the entered post-compression value is abnormal. The content of the warning is either "total length decreased" or "reference value increased". Along with the warning 406, an answer button 407 asking whether the input value is correct is displayed. The reply button 407 consists of "yes" and "no", and if the input value is wrong, if "no" is touched, the warning 406 and the reply button 407 disappear, and the compressed value is displayed on the compressed value input screen 400 again. can be entered. On the other hand, if the input values are correct even if they are determined to be abnormal for some reason, by touching "yes", those input values are accepted as they are and stored in the storage device.

Next, the program causes the mobile terminal to perform a backup step S17. In backup step S17, the communication device is connected to the Internet, and the captured image data and the input numerical data are stored in a cloud server on the Internet. However, if the mobile terminal cannot connect to the Internet (such as when it is located in a place where radio waves do not reach), the backup step S17 is automatically executed when the connection becomes possible.

As described above, the photographing of images and the input of numerical values necessary for recording are completed for one construction project, and the series of processing of the program is completed. If other construction work remains, display the construction content selection screen 200 shown in FIG. 5 or the construction subject selection screen 100 shown in FIG. Repeat shooting and inputting numbers.

The data stored in the cloud server can also be accessed from a personal computer other than the mobile terminal. Then, the data is taken in by a personal computer, and a report 500 in the format shown in FIG. 9 is automatically created using spreadsheet software or the like. The report 500 displays a photographed image 501 of a construction object on the left, and corresponding construction information 502 (construction subject, builder, object, track name, circuit, phase division, numerical values before compression, Each numerical value after compression) is displayed. The report in Fig. 9 is for the installation work of the above clamp. The upper image shows the steel clamp before compression, the middle image shows the steel clamp after compression, and the lower image The image shows the aluminum clamp after compression.

Next, a recording method of inserting an electric wire into a covering member (clamp, jumper socket, etc.) and compressing it from the outer peripheral side using a mobile terminal and an AR marker controlled by the above construction recording program will be described. explain.
(1) Construction information input process (including pre-compression value input process)
In an office or the like, information about construction work (subject of construction work, builder, line name of transmission line, tower number, object of construction work, etc.) is input from a personal computer. In addition, the value of the length of the covering member before compression and the value of the reference value before compression, which is the length between the end of the covering member and the predetermined reference position of the wire, are also input. The entered data is transmitted to the mobile terminal by e-mail and entered.
(2) Photographing process At the site, before and after the compressing operation of the covering member, the covering member is photographed with a camera of a portable terminal. At this time, one worker holds the mobile terminal, and another worker holds the AR marker and holds it at a position aligned with the covering member. By shooting the AR marker with the camera, the scale is displayed on the display of the mobile terminal, so adjust the position of the AR marker so that the scale has the position and orientation shown in FIG. 11(a). . Also, if the AR marker cannot be held at an appropriate position due to poor footing or other reasons, the scale is reversed, moved, or the angle is adjusted on the display of the mobile terminal.
(3) Actual measurement process Using a folded rule or the like, the value of the length of the covering member after compression and the value of the reference value after compression are actually measured.
(4) Post-compression value input step Input the post-compression value of the actually measured length of the covering member and the post-compression value of the reference value into the portable terminal. Data of input values and data of images shot in the shooting process are automatically saved in a cloud server on the Internet.
(5) Report creation process In an office or the like, data stored in a cloud server is taken in by a personal computer, and a report is automatically created, which is then output.

If a mobile terminal controlled by such a program for recording construction work is used, the information about the construction that was conventionally written on the blackboard can be input to the mobile terminal, so the blackboard is unnecessary. Also, since the scale is displayed on the display of the mobile terminal according to the AR marker, the actual scale is not required. Therefore, there is no need to set up a blackboard or a scale, and photography can be easily performed without taking time and effort. In addition, since the information about the construction work is input to the portable terminal, there is no need to transcribe the information later. In addition, since only the portable terminal and the AR marker are required for recording the construction work, it is easy to carry and hold during shooting. In addition, it is possible to easily switch the extending direction of the scale and adjust the angle according to the photographed object. Therefore, even if the shooting direction of the object is restricted in a place with poor footing such as on a power transmission tower, it is possible to switch the extending direction of the scale or adjust the angle according to the direction of the photographed object. Then, the recorded photograph (image) becomes easier to understand. Furthermore, although the scale is basically displayed at the position of the AR marker, it may not be possible to hold the AR marker at the optimum position where the scale should be displayed in places with poor footing such as on power transmission towers. Even in such a case, the position of the scale can be easily adjusted on the display. After moving the scale, the relative position with respect to the AR marker is fixed, so that the orientation and position of the mobile terminal can be changed to adjust the shooting angle and the like.

By using the mobile terminal and the AR marker, the electric wire construction work on the power transmission tower can be easily and safely recorded using the mobile terminal and the AR marker without the need for a blackboard or scale, which has been used in the past. be able to. In other words, the mobile terminal consists of a smartphone or a tablet, and the AR marker is about the same size, so it can be smaller than the conventional blackboard and scale, so it is easy to carry even on a power transmission tower where the footing is bad. Be safe. Since the AR marker is aligned with the position of the target and held, and the target is photographed by projecting the AR marker with a mobile terminal, there is no need to hold a large blackboard or scale as in the conventional art. Shooting work is also easy and safe.

Furthermore, by using this mobile terminal and an AR marker, it is easy to insert wires into coated materials (clamps, jumper sockets, etc.) and compress them from the outer peripheral side, without the need for the blackboards and scales used in the past. And the recording work can be done safely. Since the covering member is lengthened by compression and the reference value is shortened as the covering member is lengthened, the length of the covering member before and after compression and the reference value before and after compression are calculated. By recording, it can be confirmed that the compression has been surely performed. In this way, by recording the image of the covering member with the scale displayed together with each numerical value before and after compression, the reliability of the recording becomes high.

Although the above description is directed to construction work for connecting electric wires to transmission towers, it also applies to construction work for connecting electric wires to each other. There are various types of electric wires, but here, as in the previous case, the case of steel core aluminum stranded wire (ACSR) is shown. As shown in FIG. 10(a), the electric wire 1 consists of a steel core wire 2 in the center and an aluminum stranded wire 3 in the outer periphery. At the end of each electric wire 1, the aluminum strand 3 is stripped off and the steel core 2 protrudes. A colored inner insertion mark 21 is attached at a predetermined length from the end of the steel core wire 2 of each electric wire 1 . In addition, an outer insertion mark 31 is colored at a predetermined length from the end of the aluminum strand 3 of each electric wire 1, and an auxiliary mark 31 is colored at a predetermined length from the outer insertion mark 31. 32 is attached.

Then, these electric wires 1 are connected to each other by a sleeve. The sleeve consists of two members, an inner sleeve 6 located on the inner peripheral side and an outer sleeve 7 located on the outer peripheral side. As shown in FIG. 10( a ), the inner sleeve 6 is cylindrical, into which the steel core wire 2 can be inserted, and which is thinner than the aluminum wire 3 . On the other hand, the outer sleeve 7 has a cylindrical shape that is longer and thicker than the inner sleeve 6 and into which the aluminum stranded wire 3 can be inserted.

A specific procedure for connecting the electric wires 1 with the inner sleeve 6 and the outer sleeve 7 is as follows.
1. As shown in FIG. 10(a), one end of the electric wire 1 is inserted into the outer sleeve 7 and penetrated.
2. The ends of the steel core wires 2 of both electric wires 1 are inserted from the respective ends of the inner sleeve 6 . However, the length for inserting the steel core wire 2 is from the end of the steel core wire 2 to the inner insertion mark 21 . Let this length be the insertion length T. Also, the sum of the lengths from the end of the inner sleeve 6 (inner insertion mark 21) to the end of the aluminum stranded wire 3 of each electric wire ₁ is defined as a1 and _a2 , and the sum thereof is defined as a reference value a. Let l1 be the _total length.
3. As shown in FIG. 10(b), the inner sleeve 6 in which the steel core wire 2 is inserted is compressed from the outer peripheral side. Thereby, the steel core wire 2 and the inner sleeve 6 are integrated. By compressing and plastically deforming the inner sleeve 6, the _total length l2 after compression becomes longer than before compression, and the reference value b (from the end of the inner sleeve 6 after compression to the aluminum of each wire 1 Assuming that the lengths to the ends of the stranded wire 3 are b ₁ and b ₂ , the sum) is shortened.
4. As shown in FIG. 10(c), the outer sleeve 7 is moved to the connecting portion of the electric wire 1, and puts over the aluminum stranded wire 3 of both electric wires 1. As shown in FIG. At this time, both ends of the outer sleeve 7 are aligned with the outer insertion marks 31 . However, the lengths from both ends of the outer sleeve 7 (the outer insertion marks 31 of each wire 1) to the auxiliary marks 32 are c1 and c2, and the sum thereof is defined as _a reference value c, and the _total length of the outer sleeve 7 (both wires ₁ ) is defined as L1.
5. As shown in FIG. 10(d), the outer sleeve 7 with the aluminum strand 3 inserted therein is compressed from the outer peripheral side. As a result, the aluminum strand 3 and the outer sleeve 7 are integrated. By compressing and plastically deforming the outer sleeve 7, the _total length L2 after compression becomes longer than before compression, and the reference value d (the auxiliary length of each electric wire 1 from the end of the outer sleeve 7 after compression) Assuming that the lengths up to the mark 32 are d ₁ and d ₂ , the sum) is shortened.

In this way, the electric wires 1 are connected to each other by the inner sleeve 6 and the outer sleeve 7. In order to confirm that these steps were performed reliably, the insertion length T and the inner sleeve 6 before and after compression were measured. The total lengths l ₁ and l ₂ and the reference values a and b, the total lengths L ₁ and L ₂ of the outer sleeve 7 before and after compression and the reference values c and d are recorded.

When the electric wires 1 are connected to each other by the inner sleeve 6 and the outer sleeve 7 in this way, the photographed image for recording has a linear origin at the center, as shown in FIG. 11(c). It is more comprehensible to display a scale S extending in both directions from (numbers increase in both directions). Therefore, in the scale selection step S4 that the above program causes the portable terminal to execute, if the object is such a sleeve, the scale extending in both directions is selected instead of the scale extending in one direction in the previous case. be.

In some cases, even if the object is such a sleeve, it may be easier to understand if a scale S extending in one direction is displayed as shown in FIG. 11(d). Therefore, as described above, the operator may be allowed to arbitrarily select a scale extending in one direction or a scale extending in both directions instead of selecting a scale in advance according to the object. In this case, similarly to the above, the scale selection step S4 is executed after the construction content selection reception step S3 is executed, and the scale extending in one direction and the scale extending in both directions are available as options on the construction content selection screen. Alternatively, the scale selection step S4 is executed after the scale display step S8 is executed, and a switch button is displayed on the photographing screen so that the operator can select one of them. Each time a switch button is pressed, the scale superimposed and displayed on the photographed image may be switched between extending in one direction and extending in both directions. Here, there are two options, a scale extending in one direction and a scale extending in both directions. One scale may be an option, or there may be another type of scale other than the two, and from among these, the two scales may be an option depending on the object. may be

In this manner, the type of scale to be displayed is selected according to the type of construction work, that is, the shape of the object, so that the recorded photograph (image) can be more easily understood. If the scale were a real object, many kinds of scales would have to be prepared, which would take a lot of time and effort to handle.

The invention is not limited to the embodiments described above. For example, the construction recording program may have a different order of processing, omit some processing, or add other processing to that shown in the flowchart of FIG. In the construction information input receiving step, the information may be directly input to the portable terminal. Furthermore, the shape of the scale can be appropriately changed according to the object to be constructed, and may be curved or curved in addition to the linear shape. Further, the construction record program may cause the mobile terminal to execute the report creation step to create the report. Furthermore, this construction recording program may be used for recording construction work other than electric wire construction.

S1 Construction information input reception step S4 Scale selection step S5 Photographing step S6 Marker detection step S7 Calculation step S8 Scale display step S9 Scale reversal step S11 Scale movement step S12 Scale fixing step

Claims (6)

It is used to record the situation of the construction site,
A portable terminal having a photographing unit for photographing an object to be constructed, a display unit for displaying an image photographed by the photographing unit, and an input unit for receiving an operation input,
a construction information input reception step for receiving input of information about construction;
a photographing step of photographing an object by the photographing unit, obtaining an image, and displaying the image on the display unit in response to an operation input to the input unit;
a marker detection step of detecting whether an AR marker exists in the image;
a calculating step of calculating the position and orientation of the AR marker if it exists;
A scale is superimposed on the image according to the position and orientation of the AR marker and displayed on the display unit . a scale display step extending along a direction ;
A construction record program characterized by executing It is used to record the situation of the construction site,
A portable terminal having a photographing unit for photographing an object to be constructed, a display unit for displaying an image photographed by the photographing unit, and an input unit for receiving an operation input,
a construction information input reception step for receiving input of information about construction;
a photographing step of photographing an object by the photographing unit, obtaining an image, and displaying the image on the display unit in response to an operation input to the input unit;
a marker detection step of detecting whether an AR marker exists in the image;
a calculating step of calculating the position and orientation of the AR marker if it exists;
a scale display step of superimposing a scale on the image according to the position and orientation of the AR marker and displaying the image on the display unit;
a scale selection step of selecting a type of scale to be displayed based on the input information about the construction ;
A construction record program characterized by executing The scale extends in one direction,
on the mobile terminal,
3. The construction work according to claim 1, wherein a scale reversing step of reversing the extending direction of the scale displayed on the display unit is executed according to an operation input to the input unit. Recording program. on the mobile terminal,
a scale moving step of moving the scale displayed on the display unit to an arbitrary position and displaying the scale according to an operation input to the input unit;
a scale fixing step of fixing a relative position of the moved scale with respect to the AR marker after the operation input is completed;
4. The construction record program according to claim 1, 2 or 3, characterized in that it causes the execution of It is used to record the situation of the construction site,
A portable terminal having a photographing unit for photographing an object to be constructed, a display unit for displaying an image photographed by the photographing unit, and an input unit for receiving an operation input,
a construction information input reception step for receiving input of information about construction;
a photographing step of photographing an object by the photographing unit, obtaining an image, and displaying the image on the display unit in response to an operation input to the input unit;
a marker detection step of detecting whether an AR marker exists in the image;
a calculating step of calculating the position and orientation of the AR marker if it exists;
a scale display step of superimposing a scale extending in one direction on the image according to the position and orientation of the AR marker and displaying the scale on the display unit;
a scale reversing step of reversing the extending direction of the scale displayed on the display unit according to an operation input to the input unit;
A construction record program characterized by executing It is used to record the situation of the construction site,
A portable terminal having a photographing unit for photographing an object to be constructed, a display unit for displaying an image photographed by the photographing unit, and an input unit for receiving an operation input,
a construction information input reception step for receiving input of information about construction;
a photographing step of photographing an object by the photographing unit, obtaining an image, and displaying the image on the display unit in response to an operation input to the input unit;
a marker detection step of detecting whether an AR marker exists in the image;
a calculating step of calculating the position and orientation of the AR marker if it exists;
a scale display step of superimposing a scale on the image according to the position and orientation of the AR marker and displaying the image on the display unit;
a scale moving step of moving the scale displayed on the display unit to an arbitrary position and displaying the scale according to an operation input to the input unit;
a scale fixing step of fixing a relative position of the moved scale with respect to the AR marker after the operation input is completed;
A construction record program characterized by executing

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