Reinforcement inspection system and reinforcement inspection method

Abstract

To provide a reinforcement inspection system capable of inspecting the finished form of reinforcement even on a curved bridge. [Solution] The system is equipped with a server connected to the Internet that performs reinforcement inspections, a camera that can photograph the reinforcement areas, and a communication terminal that communicates with the camera.When the server receives the designed reinforcement pitch (SW1) and photographic data of the reinforced area from the communication terminal, it performs a proportional calculation on the internal inspection rebar to calculate the designed reinforcement pitch of the inspection rebar (SW15), compares the designed reinforcement pitch of the inspection rebar with the measured reinforcement pitch analyzed from the photographic data to determine the difference, and determines whether the difference is within the acceptable range (SW16).

Description

[Technical Field]

[0001] The present invention relates to a reinforcing bar arrangement inspection system and method used for inspecting the finished shape during reinforcing bar installation, and more particularly to a reinforcing bar arrangement inspection system and method for inspecting the reinforcing bar arrangement of bridges. [Background technology]

[0002] In conventional rebar as-built inspections, workers would read the convex values ​​and record them in a field notebook to check whether the rebar diameter, spacing between rebars, and the required number of rebars were in line with the design drawings. Photographs were also taken using measuring rods and colored markers for each rebar diameter, but this required two to three workers. The workers then had to return to the office and enter the values ​​from the field notebook into an inspection form to complete the inspection sheet.

[0003] To eliminate this hassle, there is a technology that takes a photograph of the reinforcement and performs image analysis on the photograph to check the diameter of the rebars, the spacing between the rebars, and whether the required number of rebars are placed (see Patent Documents 1 to 6). [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Patent No. 5201416 [Patent Document 2] Patent No. 6801055 [Patent Document 3] Japanese Patent Publication No. 2023-179023 [Patent Document 4] Japanese Patent Application Publication No. 2023-166059 [Patent Document 5] Japanese Patent Application Publication No. 2023-125590 [Patent Document 6] Patent No. 7283849 Summary of the Invention [Problem to be solved by the invention]

[0005] In Patent Documents 1 to 6, image analysis is performed on reinforcing bars arranged to form multiple rectangles, and the diameter of the reinforcing bars, the spacing between the reinforcing bars, and whether the required number of reinforcing bars is arranged are measured. However, in the case of bridges, the bridge may be curved, and the spacing between the reinforcing bars may change, such as widening or narrowing. In other words, in curved bridges, reinforcing bars are arranged to form multiple quadrangles that are not rectangular or square, rather than to form multiple rectangles.

[0006] The present invention has been made in consideration of the above, and aims to provide a reinforcement inspection system and a reinforcement inspection method that can inspect the finished form even when the spacing between reinforcing bars changes, such as widening or narrowing. [Means for solving the problem]

[0007] In order to solve the above problem, the invention according to claim 1 is: This is a reinforcing bar arrangement inspection system for reinforcing bars that form multiple quadrangles that are not rectangular or square.A reinforcing bar arrangement inspection system for inspecting reinforcing bars inside the periphery that intersect with any two sides of the reinforcing bars BLFR among a plurality of reinforcing bars arranged in a lattice pattern, in which reinforcing bars B and F intersect with reinforcing bars R and L, respectively, for reinforcing bars BLFR on four sides that constitute the periphery of a quadrangular shape, the system comprising: a server connected to the Internet for inspecting reinforcing bars; and one or more communication terminals for communicating with the server, or one or more communication terminals with a built-in camera for communicating with the server. When the communication terminal receives, for each of the reinforcing bars BLFR, a design reinforcing bar arrangement pitch, which is the interval between each intersection with the plurality of intersecting internal reinforcing bars, and photo data of the reinforcing bar arrangement taken by the camera, the server performs inspection of the internal reinforcing bars extending from the reinforcing bars L toward the reinforcing bars R. For reinforcing bars, the intersection of reinforcing bar L and reinforcing bar B is set as the origin, and a proportional calculation is performed between the distance from the origin to the inspected reinforcing bar in the direction in which reinforcing bar L extends and the total distance of the entire design reinforcement pitch of reinforcing bar L to calculate the design reinforcement pitch of the inspected reinforcing bar.For other inspected reinforcing bars that are internal reinforcing bars and extend from reinforcing bar B to reinforcing bar F, a proportional calculation is performed between the distance from the origin to the other inspected reinforcing bar in the direction in which reinforcing bar B extends and the total distance of the entire design reinforcement pitch of reinforcing bar B to calculate the design reinforcement pitch of the other inspected reinforcing bars.The design reinforcement pitch of the inspected reinforcing bar and the other inspected reinforcing bars is compared with the measured reinforcement pitch of the inspected reinforcing bar and the other inspected reinforcing bars analyzed from the photographic data to determine the difference, and it is determined whether the difference is within an acceptable range.

[0008] The invention according to claim 4 is as follows: This is a method for inspecting reinforcement in which multiple quadrangles that are not rectangular or square are formed.A rebar arrangement inspection method for inspecting rebars inside the periphery of a square among a plurality of rebars arranged in a grid pattern, in which rebars B and F intersect with rebars R and L, respectively, for rebars BLFR on four sides that constitute the periphery of a square shape, and that intersect with any two sides of the rebars BLFR, the method uses a server connected to the Internet for inspecting rebar arrangement, and a camera capable of photographing the rebar arrangement locations and one or more communication terminals that communicate with the server, or one or more communication terminals with a built-in camera that communicates with the server, and when the server receives, from the communication terminal, the design rebar arrangement pitch, which is the interval between each intersection with the plurality of intersecting internal rebars for each of the rebars BLFR, and photo data of the rebar arrangement locations photographed by the camera, the server performs the rebar arrangement inspection for the rebars inside the periphery that intersect with the rebars L and L, and This is a reinforcement inspection method that performs the following steps: calculating the design reinforcement pitch of the inspected rebar by performing a proportional calculation using the intersection of rebar L and rebar B as the origin and the distance from the origin to the inspected rebar in the direction in which rebar L extends to the total distance of the entire design reinforcement pitch of rebar L; calculating the design reinforcement pitch of other inspected rebars that are internal rebars and extend from rebar B to rebar F by performing a proportional calculation using the distance from the origin to the other inspected rebar in the direction in which rebar B extends to the other inspected rebar and the total distance of the entire design reinforcement pitch of rebar B; and comparing the designed reinforcement pitch of the inspected rebar and the other inspected rebars with the measured reinforcement pitch of the inspected rebar and the other inspected rebars analyzed from the photographic data to find the difference, and determining whether the difference is within an acceptable range. [Effects of the Invention]

[0009] According to the present invention, reinforcement inspection can be performed even when reinforcement is arranged to form multiple quadrangles that are not rectangular or square, for example, when the plan, cross section, or side of a curved bridge or structure changes. [Brief explanation of the drawings]

[0010] [Figure 1]FIG. 10 is a flow chart showing a workflow for reinforcing bar arrangement according to the present embodiment. [Figure 2] 1 is a diagram showing a bridge reinforcement inspection system according to an embodiment of the present invention; [Figure 3] FIG. 2 is a diagram showing the configuration of a cloud server of the system. [Figure 4] FIG. 2 is a flow diagram of the system. [Figure 5] FIG. 2 is an operational flow diagram of the cloud server of the system. [Figure 6] FIG. 2 is a diagram showing a login screen of the cloud server of the system. [Figure 7] FIG. 2 is a diagram showing a construction management screen of the system. [Figure 8] FIG. 2 is a diagram showing a construction management screen of the system. [Figure 9] FIG. 2 is a diagram showing a construction management screen of the system. [Figure 10] FIG. 2 is a diagram showing a construction management screen of the system. [Figure 11] FIG. 2 is a diagram showing a construction management screen of the system. [Figure 12] FIG. 2 is a diagram showing a construction management screen of the system. [Figure 13] FIG. 2 is a diagram showing a construction management screen of the system. [Figure 14] FIG. 2 is a diagram showing a construction management screen of the system. [Figure 15] FIG. 10 is a diagram showing a photograph of the location where the finished product inspection is performed. [Figure 16] FIG. 10 is a diagram showing a photo upload screen for image analysis processing. [Figure 17] FIG. 10 is a diagram showing a measurement line designation screen for image analysis processing. [Figure 18] FIG. 10 is a diagram showing an offset value input screen for image analysis processing. [Figure 19] FIG. 2 is a diagram showing a flow of the drawing comparison process of the system. [Figure 20] FIG. [Figure 21] This is a diagram showing the reinforcing bars on the four sides that make up the outer frame. [Figure 22] FIG. 10 is a diagram showing the spacing of reinforcing bars. [Figure 23] FIG. 2 is a diagram showing acquisition of measurement values ​​of the system. [Figure 24] FIG. 2 is a diagram showing measurement points of the system. [Figure 25] FIG. 10 is a diagram showing the processing of axial rebars in the drawing matching process of the system. [Figure 26] FIG. 10 is a diagram showing the processing of axial rebars in the drawing matching process of the system. [Figure 27] FIG. 10 is a diagram showing the processing of axial rebars in the drawing matching process of the system. [Figure 28] FIG. 10 is a diagram showing the processing of axial rebars in the drawing matching process of the system. [Figure 29] FIG. 10 is a diagram showing a form data confirmation screen of the system. [Figure 30] FIG. 2 is a diagram showing an image selection screen of the system. DETAILED DESCRIPTION OF THE INVENTION

[0011] The reinforcement bar inspection system 1 of this embodiment is described below. While this embodiment describes a bridge deck, the present invention is not limited to bridge decks and can be applied to a wide range of structures, including piers, abutments, parapets, footing foundations, and box culverts. First, Figure 1 shows the workflow for reinforcement bar placement. As shown in Figure 1, a BIM / CIM model is created (ST1) to determine how to arrange multiple rebars. Next, in step ST2, it is determined whether this BIM / CIM model is suitable for the bridge to be constructed. If it is not suitable, the process returns to step ST1. If it is suitable, the BIM / CIM model is converted into an MR (mixed reality) model (ST3). This MR model projects a 3D image of the reinforced bridge onto goggles, allowing workers wearing the goggles to see where the rebar should be placed.

[0012] Then, workers install the rebars (ST4), and a finished product inspection is performed using the bridge reinforcement inspection system 1 of this embodiment to check whether the installation of the rebars has been performed correctly (ST5). Then, a pass / fail determination is made (ST6), and if the installation has not been performed correctly, the process returns to step ST4, and the rebar installation (ST4) is performed again. If the installation has been performed correctly, the bridge client remotely visits the site using a wearable camera or the like (ST7), and this workflow ends.

[0013] Figure 2 shows the configuration of a bridge reinforcement inspection system 1. This bridge reinforcement inspection system 1 includes a communication terminal 2 equipped with a camera (not shown), such as a single-lens reflex camera, carried by a worker, and a web browser, and a cloud server 3 that communicates with communication terminal 2 via the Internet and performs bridge reinforcement inspections. Communication terminal 2 may be equipped with a camera, but a smartphone is preferably used.

[0014] Then, a worker takes a photo of the area where the finished product inspection will be performed using an imaging device and uploads the photo data to cloud server 3 via the internet using a web browser on communication terminal 2, where the number of rebars and the length of the gaps between them are measured from the photo data. The measurement results are sent to the drawing comparison system by cloud server 3, which compares the number of rebars and the length of the gaps between them in the photo data with the number of rebars and the length of the gaps between them on the drawing, and records the results in a report. Cloud server 3 then sends the recorded report data to the worker, who can view the report.

[0015] Figure 3 shows the configuration of the cloud server 3. This cloud server 3 is equipped with a web server 4 that sends and receives data to and from external parties via the Internet, a measurement server 5 that analyzes photographic data sent from the web server 4, a drawing comparison system 6 that compares the data analyzed by the measurement server 5 with drawings, and a database group DB that includes a user management database 7, a construction information management database 8, a measurement result management database 9, and a request management database 10.

[0016] 4 to 30, the bridge reinforcement inspection of this embodiment executed by the cloud server 3 will be described below. FIG. 4 shows the flow of the bridge reinforcement inspection system 1, and FIG. 5 shows the operation flow of the cloud server 3. A worker installs rebar in advance (SS1) and performs advance preparations for the bridge reinforcement inspection system 1 (SS2). This advance preparation includes the placement of four-point plates by the worker on the bridge and setting work on the cloud server 3.

[0017] To perform the setup work on the cloud server 3, access the cloud server 3 using a web browser on a communication terminal, and the login screen 11 shown in Figure 6 will be displayed on the web browser. If an ID and password are entered here and a login button 12 is clicked, the ID and password will be sent to the cloud server 3. As shown in Figure 5, the cloud server 3 compares the ID and password received from the worker with the data recorded in the user management database 7 (SU1), and if they match, sends data so that the construction management screen 13 shown in Figure 7(a) will be displayed on the worker's web browser.

[0018] This construction management screen 13 is composed of a menu field 14, a construction information frame 15, and an input frame 16. When the menu field 14 is clicked, an Add Construction tab 17, a Rebar Tolerance Master tab 18, and a Blackboard Setting Master tab 19 are displayed in the menu field 14 shown in Figure 7(b).

[0019] When a worker clicks on the Add Construction tab 17, he or she will enter construction information for the bridge being constructed this time in the input frame 16 shown in Figure 8. When the worker has finished entering the construction information and presses the Save button 20, the construction information entered will be recorded in the construction information management database 8 of the cloud server 3. The cloud server 3 then sends screen data showing the current construction information that was entered in the construction information frame 15 to the worker's communication terminal. Note that the current construction information column in the construction information frame 15 has an Add Part button 21 attached (see Figure 9).

[0020] Next, the worker clicks the Add Component button 21 in the construction information frame 15, enters information about the component for which as-built measurement will be performed in the input frame 16, and presses the Save button 20, which records the component information in the construction information management database 8 of the cloud server 3. The cloud server 3 then places the component information entered in the construction information frame 15 at the bottom of the current construction information tree, and sends screen data with the Add Measurement Point button 22 placed next to the component information to the worker's communication terminal (see FIG. 10). The worker then presses the Add Measurement Point button 22, enters the component for which as-built inspection will be performed as measurement point information in the input frame 16, and presses the Save button 20, which records the measurement point information in the construction information management database 8 of the cloud server 3, thereby completing the processing of the Add Construction tab 17 (see FIG. 11).

[0021] Next, returning to FIG. 7, clicking the menu field 14 and then the rebar tolerance master tab 18 causes the cloud server 3 to refer to the construction information management database 8 and send the screen data shown in FIG. 12 to the worker's communication terminal. The previously set tolerance values ​​are entered on the screen of the communication terminal. When the new creation button 23 is pressed, the rebar tolerance master editing screen 24 shown in FIGS. 13(a) and 13(b) appears in the input frame 16. When the necessary numerical values, etc. are entered on this rebar tolerance master editing screen 24 and the save button 20 is pressed, the numerical values, etc. are recorded in the construction information management database 8 of the cloud server 3.

[0022] Finally, returning to Fig. 7, clicking on the blackboard setting master tab 19 causes the cloud server 3 to refer to the construction information management database 8 and send the screen data shown in Fig. 14 to the worker's communication terminal. The blackboard is for use in reports, and when necessary values ​​etc. are entered here and the save button 20 is pressed, the values ​​etc. are recorded in the construction information management database 8 of the cloud server 3.

[0023] Once the advance preparations in step SS2 shown in Figure 4 are complete, a worker takes a photograph of the reinforcement at the location where the as-built inspection will be performed (SS3). For this reinforcement photograph, a four-point plate 25 is placed near the measurement location, and the location where the as-built inspection will be performed is photographed so that this four-point plate 25 is included in the photograph (see Figure 15).

[0024] Once the photography is complete, the process proceeds to step SS4, which is image analysis processing. The image analysis processing (SS4) uses ITT Corporation's SingleView Rebar Server. The function selection processing (SU2) in FIG. 5 proceeds to step SU3, specifically, by pressing the measurement system button 26 in FIG. 11. When the cloud server 3 receives data indicating that the measurement system button 26 has been pressed, it returns the photo upload screen shown in FIG. 16 to the communication terminal. Once the photo data taken by the worker is uploaded to the cloud server 3 via this photo upload screen, the process proceeds to measurement position specification processing (SU4), where the screen data shown in FIG. 17 is sent to the worker to prompt them to specify a measurement line. Upon receiving the measurement line from the worker, the cloud server 3 proceeds to measurement condition setting processing (SU5). In the measurement condition setting processing (SU5), the screen data shown in FIG. 18 is sent to the worker, prompting them to enter an offset value. When the offset value is received from the worker, the process moves to calculation processing (SU6), where calculations are performed on the rebar diameter, number of rebars, and the length of the gap between the rebars using the four-point plate 25 in the specified photograph data of the measurement position as a reference. When calculations by the cloud server 3 are completed, the measurement data is recorded in the measurement result management database 25 so that the measurement results can be used in the drawing comparison system 6 (SU8), and the rebar diameter, number of rebars, and gap length data between the rebars are sent to the worker (SU7) so that the measurement results can be displayed, and the process returns to function selection processing (SU2).

[0025] Next, when the image analysis process (SS4) in Fig. 4 is completed, the process moves to the condition setting process (SS5). In the condition setting process (SS5), the worker enters information such as the date of shooting, temperature, weather, etc., displayed in the input frame 16 shown in Fig. 11, and presses the save button 20, whereby the shooting conditions are recorded in the construction information management database 8 of the cloud server 3.

[0026] Then, once the condition setting process (SS5) is complete, the process moves to data matching process (SS6). This is started by moving to step SU9 in the function selection process (SU2) in Figure 5, specifically when the worker presses the report system button 27 in Figure 11. In the drawing upload process (SU9), the worker is prompted to upload the design drawings for the area where the as-built inspection will be performed, and once the upload of the design drawings is complete, the drawing comparison process (SU10) is performed.

[0027] Figure 19 shows the flow of the drawing comparison process. In this drawing comparison process (SU10), first, the worker is prompted to input design values ​​(SW1). As shown in Figure 20, the design values ​​are input as "rebar nominal diameter", "number of pieces", and the pitch of both ends of the rebars "B(L) side pitch" and "F(R) side pitch". The reinforcing bars BLFR, which are the basis for the "B(L) side pitch" and "F(R) side pitch" at both ends of the reinforcing bars, are the reinforcing bars on the four sides that make up the outer periphery of a square among the multiple reinforcing bars arranged in a grid pattern (see Figure 21). The "B(L) side pitch" and "F(R) side pitch" refer to the intervals between the intersections of reinforcing bars L, R, and multiple internal reinforcing bars that intersect with reinforcing bar B(F), as shown in Figure 22(a). The L side pitch and R side pitch refer to the intervals between the intersections of reinforcing bars B, F, and multiple internal reinforcing bars that intersect with reinforcing bar L(R), as shown in Figure 22(b).

[0028] Next, once the design values ​​are input using the worker's mobile terminal, the process proceeds to step SW2, where measurement values ​​are acquired (see Figure 23). Acquisition of measurement values ​​involves acquiring the rebar diameter, number of rebars, and the length of the spacing between the rebars from the periphery to the inside, which were measured from the photographic data in the image analysis process of step SS4 shown in Figure 4, from the measurement result management database 25. As shown in Figure 23, for rebars extending in the perpendicular direction (the direction extending from rebar B toward rebar F), the pitches between the intersections with multiple rebars extending in the axial direction (the direction extending from rebar L toward rebar R) are listed on the left side of the page, and for rebars extending in the axial direction, the pitches between the intersections with multiple rebars extending in the perpendicular direction are listed on the right side of the page.

[0029] Once the measurement values ​​have been acquired, the process proceeds to step SW3, prompting the worker to specify the measurement range. Figure 24 shows the screen sent from the cloud server 3 to the worker's communication terminal 2 and displayed in the input frame 16 of the communication terminal 2. The left side of Figure 24 shows a table created from the input design values, indicating that 17 rebars are arranged in the axial direction and 22 rebars are arranged in the transverse direction. The right side of Figure 24 is a field for the worker to enter information. The worker determines where the photographed point is in the arranged rebars, with the upper left corner of the diagram where rebars B and L intersect as the origin (number 1). The worker then enters the starting position of the photographed point in the axial and transverse directions in the start number fields 28 for the transverse rebar measurement position and the axial rebar measurement position. Furthermore, as shown in Figure 24, the worker enters the axial and transverse positions of the two measured inspection rebars S and T in the position number fields 29 for the transverse rebar measurement position and the axial rebar measurement position, and sends the data to the cloud server 3.

[0030] When the cloud server 3 receives the data entered in the start number field 28 and the position number field 29 from the communication terminal 2, it specifies a measurement data range 30 from the data in the start number field 28, the number of pitches which is the distance between the intersections of the axially extending inspection rebar S with multiple rebars extending perpendicularly, and the number of pitches which is the distance between the axially extending intersections of the other axially extending inspection rebar T with multiple rebars extending perpendicularly. The range surrounded by a bold frame in the table on the right side of Figure 24 is the measurement data range 30.

[0031] Next, proceeding to step SW4, the position numbers in the axial and transverse directions are determined based on the data entered in the position number field 29 from the communication terminal 2, to indicate which position within the measurement data range the measurement position corresponds to. This determination is made by substituting the axial position number for variable x and the transverse position number for variable y. The two dark gray lines within the measurement data range 30 in the table on the right side of Figure 24 represent the axial rebar S and the transverse rebar T at measurement position 31. Furthermore, the axial start number entered in the start number field 28 is substituted for variable j, and the transverse start number entered in the start number field 28 is substituted for variable k.

[0032] Next, proceed to step SW5, assign 0 to the initial value of variable n, which indicates the target measurement data, and increment variable n by 1 (SW6). Next, determine whether the rebar at the measurement position is an axial rebar S or a perpendicular rebar T (SW7). In this determination at step SW7, once all processing for the axial rebar S is completed, processing will proceed to the perpendicular rebar T. First, since processing will be performed for the axial rebar S, proceed to step SW8, assign 0 to variable i. Next, proceed to step SW9, assign 0 to variable a, which indicates the axial rebar measurement position distance. Next, proceed to step SW10, and increment variable i by 1. Then, assign the value of the L-side pitch of the i-th perpendicular rebar design value (a + a) to the variable a (SW11).

[0033] When the processing of step SW11 is completed, it is determined whether variable i is equal to variable x (SW12), and if variable i is smaller than variable x, the process returns to step SW10. If variable i is equal to variable x, the total value of the design values ​​of the L-side pitches for the axial rebars is assigned to variable c (SW13), and the process proceeds to step SW14. In step SW14, the value of the B-side pitch (B = axial rebar design value (j + n))th) is assigned to variable B, and the value of the F-side pitch (F = axial rebar design value (j + n))th) is assigned to variable F. The B-side pitch refers to the distance between the intersections of multiple rebars that intersect with rebar B, and the F-side pitch refers to the distance between the intersections of multiple rebars that intersect with rebar F.

[0034] Next, the process proceeds to step SW15, where a proportional calculation is performed to determine the j+nth design pitch (design reinforcing bar pitch) of the axial rebar S at the measurement position 31. This proportional calculation is calculated as the axial design pitch P = B + (FB) × (a / c). Once the proportional calculation is performed and the calculation of the design pitch P is complete, the process proceeds to step SW16, where the calculated axial design pitch P is compared with the nth measured pitch in the measurement data to determine the difference, and it is determined whether the difference is within the allowable range. Once the determination is complete, the difference between the axial design pitch P and the nth measured pitch in the measurement data is sent to the construction information management database 8, and the process proceeds to step SW17. In step SW17, the total number of measured pitches is compared with n. If n is smaller than the total number, the process returns to step SW6. If the total number is equal to n, the process ends the drawing comparison process.

[0035] Returning to step SW6, for the axial rebars S, as shown in FIG. 24, once steps SW8 to SW17 for the pitch between the intersections with the second to ninth perpendicular rebars are completed, proceed to step SW18 to process the perpendicular rebars T in step SW7. For the perpendicular rebars, the same processing as steps SW8 to SW16 for the axial rebars S is performed. First, in SW18, 0 is assigned to variable i. Next, proceed to step SW19, where 0 is assigned to variable a, which indicates the perpendicular rebar measurement position distance. Next, proceed to step SW20, where variable i is incremented by one.

[0036] Then, the variable a is assigned a plus the value of the B-side pitch of the i-th perpendicular rebar design value (SW21). After the processing of step SW21 is completed, it is determined whether the variable i is equal to the variable y (SW22). If the variable i is smaller than the variable y, the process returns to step SW20. If the variable i is equal to the variable y, the sum of the design values ​​of the B-side pitches for the perpendicular rebars T is assigned to the variable c (SW23), and the process proceeds to step SW24. In step SW24, the variable L is assigned the value of the L-side pitch of the (k+n)th perpendicular rebar design value, and the variable R is assigned the value of the R-side pitch of the (k+n)th perpendicular rebar design value. The L-side pitch refers to the distance between the intersections of multiple rebars that intersect with rebar L, and the R-side pitch refers to the distance between the intersections of multiple rebars that intersect with rebar R.

[0037] Next, the process proceeds to step SW25, where a proportional calculation is performed to determine the k+nth design pitch of the rebar T in the perpendicular direction at the measurement position 31. This proportional calculation is calculated as the perpendicular design pitch P = L + (RL) × (a / c). Once the proportional calculation is performed and the calculation of the design pitch P is completed, the process proceeds to step SW26, where the determined perpendicular design pitch P is compared with the nth measured pitch in the measurement data to determine the difference, and it is determined whether the difference is within the allowable range. Once the determination is complete, the difference between the perpendicular design pitch P and the nth measured pitch in the measurement data is sent to the construction information management database 8, and the process proceeds to step SW17. In step SW17, the total number of measured pitches is compared with n. If n is smaller than the total number, the process returns to step SW6. If the total number is equal to n, the drawing comparison process ends.

[0038] The process for axial rebars S in the drawing comparison process is illustrated in diagram form. When axial rebars S are selected in step SW7, the design pitch is calculated for the axial rebars S, which are enclosed in a bold frame and have multiple measurement pitches entered, as shown in Figure 25. First, the total L-side design pitch from the first transverse rebar to the measurement point (position number of the axial rebar measurement location) is calculated (SW10-SW12), which is the distance in the direction of extension of the rebar L, as shown in the bold frame area in Figure 26. Next, the total L-side design pitch of all transverse rebars, as shown in the bold frame area in Figure 27, is calculated (SW13). Next, the B-side design pitch of rebar B between the second and third rebars and the F-side design pitch of rebar F are assigned to variables B and F, respectively (SW14). Then, calculations are performed for the axial rebars depicted in bold lines in Figure 28 to determine the axial design pitch P (SW15). Finally, the difference between the axial design pitch P and the measured pitch of the nth measurement data is calculated, and it is determined whether this difference is within the tolerance range. Once this determination is complete, the axial design pitch P between the next third and fourth rebars is calculated and determined. As shown in Figure 24, once the determination of the axial design pitch P between the eighth and ninth rebars is completed, the design pitch P for the rebars in the perpendicular direction is calculated and determined from the pitch between the second and third rebars, which is the starting position, to the pitch between the ninth and tenth rebars.

[0039] After the drawing comparison process SU10 in FIG. 5 is completed, the process proceeds to the sign synthesis process SU11. The cloud server 3 references the construction information management database 8 and displays the report data confirmation screen 32 shown in FIG. 29 on the communication terminal 2. This report data confirmation screen 32 displays the design values, measurement values, and errors for the axial rebars. Selecting the orthogonal direction tab displays the design values, measurement values, and errors for the orthogonal rebars. When the report output button 33 on the right side of this report data confirmation screen 32 is pressed, the cloud server 3 transmits the data on the image selection screen 34 shown in FIG. 33 to the worker. When the worker selects an image to display along with the numerical data for the design values, measurement values, and errors and presses the report output button 35 at the top of the screen, an Excel report is output. On the image selection screen 34, the report output button 33 on the right is displayed in gray, so that clicking the button does not transmit the data of the action to the cloud server 3.

[0040] Next, the cloud server 3 displays the report on the worker's communication terminal in a result display process (SU12), and downloads the displayed report in a result download process (SU13), returning to the function selection screen (SU2).

[0041] The data matching process (SS6) in Figure 4 is the process from steps SW1 to SW15 and SW18 to SW25 in Figure 19, and the next pass / fail judgment process (SS7) is the process of step SW17 in Figure 19. If the measurement pitch does not fall within the allowable range in the pass / fail judgment process (SS7), the worker corrects the reinforcement (SS9) and returns to the reinforcement photographing (SS3). If the measurement pitch falls within the allowable range in the pass / fail judgment process (SS7), the process proceeds to the report creation process (SS8), and the flow of the bridge reinforcement inspection system ends. The report creation process (SS8) is the process from the sign synthesis process SU11 to the result download process (SU13) in Figure 5.

[0042] In this embodiment, communication between the communication terminal 2 and the cloud server 3 is performed via the web browser of the communication terminal 2, eliminating the need to create a special communication application and reducing system development costs. Although a cloud server is used, a regular server can be used instead of a cloud. Using a cloud server reduces database construction costs and makes it easy to add a reporting system to an existing measurement system.

[0043] The present invention is not limited to the configuration of the above embodiment, and various modifications are possible. For example, instead of the proportional calculation shown in the above embodiment, a simpler method for calculating the design reinforcing bar pitch may be used, such as calculating the direction of extension of the reinforcing bars from the origin, which is one intersection of the intersecting reinforcing bars, to the reinforcing bar to be inspected. A proportional calculation may be performed using the distance toward the target point and the total distance of the entire design reinforcing bar pitch. [Explanation of symbols]

[0044] 1 Bridge Reinforcement Inspection System 2. Communication terminals 3. Cloud Server 4. Web Server 5. Measurement Server 6 Drawing matching system 7 User-Managed Database 8 Construction Information Management Database 9. Measurement results management database 10 Request Management Database 11 Login screen 12 Login button 13 Construction management screen 14 Menu column 15 Construction information frame 16 input frames 17 Construction Addition Tab 18 Rebar Tolerance Master Tab 19 Blackboard Settings Master Tab 20 Save button 21 Add part button 22 Add measurement point button 23 New button 24 Rebar tolerance master edit screen 25 4-piece plate 26 Measurement system button 27 Report System Button 28 Starting Number Column 29 Position number field 30 Measurement data range 31 Measurement location 32 Report data confirmation screen 33 Report output button 34 Image selection screen 35 Report output button B Reinforcement L rebar F Reinforcement R rebar n variables i variable a variable x variable y variable c variable P Design pitch S Inspection rebar T Inspection Rebar DB databases

Claims

1. A reinforcing bar arrangement inspection system for reinforcing bars that form multiple quadrangles that are neither rectangular nor square, wherein, among multiple reinforcing bars arranged in a lattice pattern, for the reinforcing bars BLFR on the four sides that form the outer periphery of the quadrangle, reinforcing bars B and F intersect with reinforcing bars R and L, respectively, and the reinforcing bars that intersect with any two sides of the reinforcing bars BLFR are inspected from the outer periphery, a server connected to the Internet and performing reinforcement inspection; A camera capable of photographing a reinforcement placement location and one or more communication terminals that communicate with the server, or one or more communication terminals that have a built-in camera and communicate with the server, The server When the design reinforcing bar pitch, which is the interval between each intersection point of the reinforcing bars and the multiple internal reinforcing bars, and the photographic data of the reinforcing bar arrangement area taken by the camera are input from the communication terminal for each reinforcing bar BLFR, For the inspection rebar, which is the internal rebar and extends from the rebar L toward the rebar R, a proportional calculation is performed using the intersection of the rebar L and the rebar B as the origin, the distance from the origin to the inspection rebar in the direction in which the rebar L extends, and the total distance of the entire design rebar arrangement pitch of the rebar L, to calculate the design rebar arrangement pitch of the inspection rebar; For other inspection rebars that are the internal rebars and extend from the rebar B toward the rebar F, a proportional calculation is performed using the distance from the origin to the other inspection rebar in the direction in which the rebar B extends and the total distance of the entire design rebar arrangement pitch of the rebar B to calculate the design rebar arrangement pitch of the other inspection rebar; A reinforcement inspection system characterized by comparing the designed reinforcement pitch of the inspection rebar and other inspection rebars with the measured reinforcement pitch of the inspection rebar and other inspection rebars analyzed from the photographic data to determine the difference, and determining whether the difference is within an acceptable range.

2. 2. The bar arrangement inspection system according to claim 1, wherein communication between the communication terminal and the server is performed via a web browser.

3. 3. The bar arrangement inspection system according to claim 1, wherein the server is a cloud server.

4. A method for inspecting reinforcing bars arranged in a grid pattern to form multiple quadrangles that are not rectangular or square, wherein, for the reinforcing bars BLFR on the four sides that form the outer periphery of a quadrangle among multiple reinforcing bars arranged in a grid pattern, reinforcing bars B and F intersect with reinforcing bars R and L, respectively, and the method inspects reinforcing bars located inside the outer periphery that intersect with any two sides of the reinforcing bars BLFR, a server connected to the Internet and performing reinforcement inspection; A camera capable of photographing the reinforcement placement location and one or more communication terminals that communicate with the server, or one or more communication terminals that have a built-in camera and communicate with the server, The server When the design reinforcing bar pitch, which is the interval between each intersection point of the reinforcing bars and the multiple internal reinforcing bars, and the photographic data of the reinforcing bar arrangement area taken by the camera are input from the communication terminal for each reinforcing bar BLFR, For the inspection rebar that is the internal rebar and extends from the rebar L toward the rebar R, a proportional calculation is performed using the intersection of the rebar L and the rebar B as the origin, the distance from the origin to the inspection rebar in the direction in which the rebar L extends, and the total distance of the entire design rebar arrangement pitch of the rebar L, to calculate the design rebar arrangement pitch of the inspection rebar; For other inspection rebars that are the internal rebars and extend from the rebar B toward the rebar F, a proportional calculation is performed using the distance from the origin to the other inspection rebar in the direction in which the rebar B extends and the total distance of the entire design rebar arrangement pitch of the rebar B to calculate the design rebar arrangement pitch of the other inspection rebar; A reinforcement inspection method that carries out a step of comparing the designed reinforcement pitch of the inspection rebar and other inspection rebars with the measured reinforcement pitch of the inspection rebar and other inspection rebars analyzed from the photographic data to determine the difference, and determining whether the difference is within an acceptable range.

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