JP6236199B2 - Bar arrangement system - Google Patents

Description

  The present invention relates to a bar arrangement inspection system for inspecting reinforcing bars at a construction site.

  Conventionally, when inspecting reinforcing bars of a reinforced concrete structure at a construction site, a digital camera, a blackboard, a rod, a drawing, etc. are taken. Then, a reinforcing bar to be inspected is specified using a drawing, and the state of the reinforcing bar is photographed as an identification photograph together with a blackboard and a rod describing necessary items for each reinforcing bar location.

JP 2012-21323 A

However, when performing bar arrangement inspection (bar arrangement photography), it takes time to measure the diameter of the reinforcing bars using the rod, the pitch between the reinforcing bars, etc., so make detailed measurements within a limited time. Was difficult. Also, it was not possible to confirm whether or not the location where the inspection (photographing) was performed was correct.
Although Patent Document 1 discloses an inspection support system and program that can prevent an artificial bar arrangement inspection mistake, it does not confirm the validity of the inspection location.

  The present invention has been made in view of the above-mentioned problems, and its main purpose is to perform a bar arrangement inspection promptly without making a mistake in place.

In order to solve the above-described problems, the present invention is a bar arrangement inspection system that acquires a target position that is a position of a reinforcing bar to be inspected and a measurement position obtained by measuring the position of a reinforcing bar to be imaged. When the means, the acquired target position, and the acquired measurement position match, the means for outputting the determined result, the target position, and the measurement position match The design information indicating the state of the bar arrangement that should be at the measurement position is acquired, and after storing the acquired measurement position, the image information obtained by photographing the reinforcing bar at the measurement position is acquired, and the image information is obtained from the image information. Means for extracting a bar arrangement state as measurement information, means for determining whether the acquired design information and the extracted measurement information match, and means for outputting the determined result; and the design information , The measurement If the boric matches, the image information, characterized in that it comprises, means for storing the memorized measurement positions and in association with the measurement information.
According to this configuration, since a match between the reinforcing bar position on the drawing to be inspected and the reinforcing bar position to be actually photographed is determined, it is not possible to mistakenly photograph a reinforcing bar that is not to be inspected. Since the matching between the design information corresponding to the reinforcing bar position and the measurement information acquired from the actual captured image is determined with respect to the state of the bar arrangement, the bar arrangement inspection can be performed promptly and accurately. .
Further, since the image information of the reinforcing bar, the position of the reinforcing bar, and the measurement information such as the diameter and pitch of the reinforcing bar are stored in association with each other, the image of the reinforcing bar, the position, and the data of the reinforcing bar state can be referred to while being associated with each other. Further, since the position and bar arrangement state data can be referred to without opening the image data, for example, rearrangement can be performed using the position and bar arrangement state as a sort key, and the image can be output according to the order. According to this, it is possible to efficiently organize the reinforcing bar images.

Moreover, the said reinforcement arrangement | positioning inspection system of this invention WHEREIN: The position of the said reinforcing bar is good also as specifying with the distance from the nearest street core.
According to this configuration, the position of the reinforcing bar is determined by the distance from the core of the construction site. Therefore, the position of the reinforcing bar is easily understood by specifying the core. In addition, since the closest core is the reference, the distance grasped by the inspector is shortened, so that the position of the reinforcing bar is further easily understood. According to this, since the inspector can easily grasp the position of the reinforcing bar, the erroneous recognition of the inspection place at the construction site can be reduced.

  In addition, the problems disclosed by the present application and the solutions thereof will be clarified by the description of the mode for carrying out the invention and the drawings.

  According to the present invention, it is possible to quickly perform a bar arrangement inspection without making a mistake in the place.

1 is a diagram illustrating a configuration of a bar arrangement inspection system 1. FIG. 2 is a diagram showing a hardware configuration of a mobile terminal 4. FIG. It is a figure which shows the structure of the data memorize | stored in the memory | storage part 45 of the portable terminal. It is a flowchart which shows the process of the bar arrangement | sequence inspection system. It is a figure which shows the conversion from a GPS coordinate to a local coordinate. It is a figure which shows the structural example of the screen of the portable terminal. It is a figure which shows the structural example of the image information 454.

  Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings. In the bar arrangement inspection system according to the embodiment of the present invention, an inspector goes to a construction work site with a digital camera, a positioning device, a mobile PC (Personal Computer), and a background bar to which a marker is attached. The location of shooting can be confirmed with the equipment and mobile PC, and when a bar arrangement photo is taken with a digital camera, the number of reinforcing bars, the diameter, and the pitch between the bars (the state of the bar arrangement) are displayed on the mobile PC screen. The determination result is displayed and compared with the design information registered in advance. Then, the taken bar arrangement photograph, the number of rebars, the measurement result of the diameter and pitch, and the local coordinates in the field are stored in the mobile PC.

  According to this, it is possible to confirm whether or not the reinforcing bar to be photographed is a target to be inspected, and to quickly and accurately recognize whether or not the state of the photographed reinforcing bar conforms to the design information. it can.

≪System configuration and overview≫
FIG. 1 is a diagram illustrating a configuration of a bar arrangement inspection system 1. The bar arrangement inspection system 1 measures the position of the reinforcing bar, determines whether or not the position of the reinforcing bar is appropriate, and measures data indicating the state of the reinforcing bar (bar arrangement information). This is a system for determining whether or not it is appropriate, and includes a digital camera 2, a GPS (Global Positioning System) receiver 3, and a portable terminal 4.

  The digital camera 2 takes a bar arrangement photo to be inspected and wirelessly transfers image information of the bar arrangement photo to the portable terminal 4. As a bar arrangement photograph, a picture of a background bar B provided with a circular marker M inserted in the back side of a reinforcing bar to be inspected is taken instead of a rod. Then, the image information of the arrangement photo is stored in an SD card with a wireless LAN communication function (for example, an Eye-Fi card) built in the digital camera 2 and transferred from the SD card to the portable terminal 4.

  The GPS receiver 3 measures its position as GPS coordinates while receiving a carrier wave from a GPS satellite as needed, and transmits the measured GPS coordinates to the portable terminal 4 by wireless communication. The GPS coordinates are represented by the latitude, longitude, and altitude (ellipsoidal height) of the position.

  The mobile terminal 4 is realized by a mobile PC or the like, acquires in advance the arrangement information of the arrangement of bar arrangement and the arrangement position data indicating the position of the arrangement, receives the current position data indicating the current position from the GPS receiver 3, and digitally Reinforcement image information is received from the camera 2. Then, the bar arrangement position data acquired in advance and the received current position data are compared, the measurement information is extracted from the image information, the design information corresponding to the received current position data is acquired, the measurement information, the design The information is collated and the collation result is displayed.

  FIG. 2 is a diagram illustrating a hardware configuration of the mobile terminal 4. The portable terminal 4 includes a communication unit 41, a display unit 42, an input unit 43, a processing unit 44, and a storage unit 45, and each unit is configured to be able to transmit and receive data via the bus 46. The communication unit 41 is a part that performs wireless communication with other devices (digital camera 2, GPS receiver 4) by wireless LAN or wireless communication, and is realized by, for example, a NIC (Network Interface Card) or the like. The display unit 42 is a part that displays data according to an instruction from the processing unit 44, and is realized by, for example, a liquid crystal display (LCD). The input unit 43 is a part where an operator inputs data (for example, local coordinates of a shooting location) and processing instructions, and is realized by, for example, a touch panel. The processing unit 44 delivers data between the respective units via a predetermined memory and controls the entire mobile terminal 4. A CPU (Central Processing Unit) stores a program stored in the predetermined memory. It is realized by executing. The storage unit 45 stores data from the processing unit 44 and reads out the stored data. For example, the storage unit 45 is realized by a nonvolatile storage device such as an HDD (Hard Disk Drive) or an SSD (Solid State Drive). The

<< Data structure >>
FIG. 3 is a diagram illustrating a configuration of data stored in the storage unit 45 of the mobile terminal 4. The storage unit 45 stores an image processing program 451, reinforcing bar standard information 452, design information 453, image information 454, and measurement information 455. The image processing program 451 is a program that extracts reinforcement information from image information captured by the digital camera 3 and performs a process of determining compatibility with design information. It is read from the storage unit 45 by an instruction. The reinforcing bar standard information 452 is table information used for obtaining a reinforcing bar standard from the distribution of diameters. For detailed contents of the image processing program 451 and the reinforcing bar standard information 452, see, for example, paragraphs [0027] to [0053] and FIGS. 6 to 9 of JP 2012-67462 A.

  The design information 453 is bar arrangement information determined for each position on the local coordinate system. Specifically, the member name (column, beam, floor, wall), code, number of reinforcing bars, pitch of reinforcing bar, diameter (Thickness standard; for example, D10, D13, D16, etc.) are stored. The image information 454 is a captured image of the reinforcing bar received from the digital camera 3 and includes attribute information (such as the shooting date, the GPS coordinates of the shooting location, and local coordinates) regarding the captured image. For example, by using Exif (Exchangeable Image File Format) which is one of the image file formats, information (metadata) related to shooting conditions can be added to the image information 454 shot by the digital camera 2 and stored. . The measurement information 455 is reinforcement information extracted from the image information 454, and in detail, the number of reinforcing bars, the diameter, the pitch between the reinforcing bars, and the like are stored.

≪System processing≫
FIG. 4 is a flowchart showing the processing of the bar arrangement inspection system 1. Hereinafter, the flow of processing related to the bar arrangement inspection work will be described focusing on the processing of the digital camera 2, the GPS receiver 3, and the portable terminal 4.

  First, the mobile terminal 4 acquires design information related to bar arrangement at a construction site (a construction target area, a building, or the like) where a bar arrangement inspection is to be performed from a server or the like, and stores the design information as design information 453 in the storage unit 45 (S401). ). The inspector may input the bar arrangement design information from the “input bar arrangement information” field on the screen of the mobile terminal 4 shown in FIG. 6, or the bar arrangement information on the construction site is registered in advance. Alternatively, the mobile terminal 4 may be prepared.

  The inspector carries the digital camera 2, the GPS receiver 3, the portable terminal 4, and the background bar B and goes to the construction site. Then, when arriving at the first shooting location, referring to the design drawing or the like, the position of the reinforcing bar to be inspected in the “input of local coordinates of shooting location” column of the portable terminal 4 is, for example, a mark at the site. The distance from the street core and the number of floors (hereinafter referred to as “street distance data”) are input. As a result, the core distance data set for each construction site and easily understood by the inspector is stored in the storage unit 45 of the portable terminal 4.

  Next, the GPS receiver 3 measures the current position, and transmits the GPS coordinates (latitude, longitude, and ellipsoidal height) to the portable terminal 4 (S402). At this time, the inspector brings the GPS receiver 3 as close as possible to the reinforcing bar to be inspected so that accurate GPS coordinates can be obtained. In the case where there is no dedicated GPS receiver 3, for example, GPS coordinates may be acquired by a mobile phone with a GPS function and directly input to the mobile terminal 4 directly. On the other hand, the portable terminal 4 receives GPS coordinates from the GPS receiver 3, converts the GPS coordinates into local coordinates, and converts the GPS coordinates into core distance data through the local coordinates (S403).

  FIG. 5 is a diagram illustrating conversion from GPS coordinates to local coordinates. GPS coordinates consist of latitude, longitude, and altitude. The local coordinates are set based on a coordinate system that is easily set according to the construction site. In the example of FIG. 5, the X axis in the side line direction and the Y axis in the center line direction are set with the center of the soccer court as the origin. Is set. If the rotation angle Θ from the true north direction of the GPS coordinates to the Y axis of the local coordinates and the position coordinates Δx and Δy (origin deviation) of the local coordinates on the GPS coordinates are specified, the GPS coordinates Conversion to local coordinates is possible. When the rotation angle Θ cannot be specified from the drawings or the like, GPS positioning is performed at two points on a straight line parallel to any axis, and the rotation angle Θ may be calculated from the result.

  Furthermore, the conversion from the local coordinates to the core distance data is performed using a coordinate conversion map (not shown) corresponding to the core of the construction site. The coordinate conversion map is a table for calculating the name of the nearest wick, the distance from the wick, and the rank for each range of local coordinates.

  Subsequently, the portable terminal 4 compares the street distance data (target position) input before S402 with the street distance data (measurement position) converted from the GPS coordinates in S403, thereby obtaining the current position. It is determined whether it is a place to be photographed (S404). The inspector refers to the determination result, and if it is not the place to be photographed (NO in S404), the inspector moves to a place that seems to be correct by reconfirming the drawing and operates the GPS receiver 3 to Instructs position measurement and transmission of the result (S402).

  If it is a place to be photographed (YES in S404), the portable terminal 4 stores the core distance data converted in S403 on the memory as position data and waits for reception of image information from the digital camera 2 (S405). . Since the position of the GPS receiver 3 is shifted from the location of the rebar because the inspector takes a picture of the rebar later, the position data is retained. The correct position information is determined as data to be associated with the captured image.

  Subsequently, in response to the operation of the inspector, the digital camera 2 captures the reinforcing bar with the background bar B as a background, and transmits the captured image to the portable terminal 4 (S406). On the other hand, the mobile terminal 4 receives the captured image from the digital camera 2 and stores the image obtained by adding the position data to the captured image in the storage unit 45 as the image information 454 and displays the received captured image on the screen. It is displayed (S407). At this time, among the image files (for example, the file name and the update date / time) displayed in the “image file selection” column of the mobile terminal 4 shown in FIG. 6, the one selected by the inspector's operation may be displayed. . Then, the image processing program 451 is read onto the memory, and a process of extracting the marker M from the image information 454 is performed (S408). This process is performed in response to an operation of the “Measure” button of the portable terminal 4 by the inspector. If the extraction process of the marker M is NG (NO in S409), the digital camera 2 performs again the shooting of the reinforcing bar and the transmission of the shot image (S406).

  If the extraction process of the marker M is OK (YES in S409), the mobile terminal 4 activates the image processing program 451 and extracts a reinforcing bar region from the signal data between the markers M in the image information 454 (S410). In addition, the number of reinforcing bars, the diameter, and the pitch between the reinforcing bars are measured, and the measurement results are stored in the storage unit 45 as measurement information 455 (S411). Regarding the diameter, first, the diameter length is measured, and then, referring to the reinforcing bar standard information 452, the nominal diameters such as D10 and D13 are specified from the range of the measured diameter length. Note that the processing of S410 and S411 is performed in response to an operation of the “measurement” button of the portable terminal 4 by the inspector.

  And the portable terminal 4 compares the measurement information 455 of the memory | storage part 45 with the design information 453, and determines whether both correspond (S412). In this case, it is determined as “matched” when both the number, diameter, and pitch of the reinforcing bars match. If the measurement information 455 and the design information 453 do not match (NO in S412), the inspector corrects the bar arrangement state (S413), and the digital camera 2 again captures the reinforcing bar and transmits the captured image. This is performed (S406). At this time, if there is no room for reworking in the bar arrangement state, the inspector may reconfirm the drawing and correct the design information 453 as necessary.

  If the measurement information 455 and the design information 453 match (YES in S412), the mobile terminal 4 displays the measurement information 455 as a measurement result (S414), and displays the measurement result in an Exif format. The attribute information (metadata) of the information 454 is written and stored again as image information 454 including the measurement result (S415). At this time, the examiner refers to the “determination of measurement result for bar arrangement information” field on the screen of the mobile terminal 4 shown in FIG. 6, and displays “measurement result display” if “OK” is displayed. Press the button, check the displayed contents, and then press the “Save” button.

  FIG. 7 is a diagram illustrating a configuration example of the image information 454. In FIG. 7, on the left side from the center, a rebar image with a nominal diameter and pitch added is shown. On the right side, as attribute information, shooting date, GPS coordinates, local coordinates, core distance data, Member names, symbols, etc. are shown. By using Exif as the image file format, the attribute information can be referred to by a dedicated viewer. According to this, for example, in the portable terminal 4 to which a printer is connected, the image information 454 is read from the storage unit 45 to the memory by using dedicated software, and the local coordinates, member names, codes, and the like are rearranged as sort keys and printed as forms. be able to. According to this, as a result of the bar arrangement inspection, the reinforcing bar photographs can be efficiently arranged.

  Subsequently, the inspector determines whether or not to move to the next shooting location on the construction site (S416). When moving to the next shooting location (YES in S416), after inputting the core distance data to the portable terminal 4 according to the shooting location, the process is resumed from the processing of S402. If there is no imaging location to be moved (NO in S416), the bar arrangement inspection work at the construction site is terminated.

  In the above embodiment, in order to make each device in the bar arrangement inspection system 1 shown in FIG. 1 function, a program executed by the CPU of each device is recorded on a computer-readable recording medium, and the recording is performed. It is assumed that the bar arrangement inspection system 1 according to the embodiment of the present invention is realized by causing the computer to read and execute the program. In this case, the program may be provided to the computer via a network such as the Internet, or a semiconductor chip or the like in which the program is written may be incorporated in the computer.

  According to the embodiment of the present invention described above, the location of the reinforcing bar to be photographed is not mistaken when performing the bar arrangement inspection at the construction site. Next, it is possible to quickly check for misplacement at the inspection location. And since the position data and measurement result of an imaging | photography place are provided to the bar arrangement photograph data and recorded, it can be proved that the bar arrangement state is correct.

  Specifically, as shown in S402 to S404 in FIG. 4, before the inspector actually photographs the reinforcing bar, the current position is measured by the GPS receiver 3, and the portable terminal 4 passes the GPS coordinates to the center distance. Since it is converted into data and the converted core distance data is compared with the core distance data registered in advance as the location to be photographed, it is not necessary to make a mistake in the location where the rebar is imaged. In this case, since the core distance data is displayed by the distance from the nearest core and the number of floors of the building, it is easy for the inspector to easily identify the place to be photographed.

  Next, as shown in S406 to S412, the rebar is photographed by the digital camera 2, and the number, diameter, and pitch of the rebar are measured from the photographed image by the portable terminal 4, and the measurement information and the pre-registered design Since the information is compared, it can be determined whether or not the bar arrangement state is correct.

  Furthermore, as shown in S415, since the captured image of the reinforcing bar, the position data, and the measurement information are stored in association with each other by the portable terminal 4, the result of the bar arrangement inspection can be efficiently organized.

  According to the above, it is possible to save labor for measuring the diameter of the reinforcing bar and the pitch, and to perform measurement without making a mistake in the place. Since the shooting location and the measurement result are recorded in the arrangement photo data, it becomes easier to organize later.

<< Other embodiments >>
As mentioned above, although the form for implementing this invention was demonstrated, the said embodiment is for making an understanding of this invention easy, and is not for limiting and interpreting this invention. The present invention can be changed and improved without departing from the gist thereof, and equivalents thereof are also included in the present invention. For example, in the above-described embodiment, in the bar arrangement inspection system 1, the digital camera 2, the GPS receiver 3, and the mobile terminal 4 are described as separate single devices, but the embodiment is not limited thereto. For example, a digital camera with a GPS positioning function and a portable terminal may be used, or a portable terminal having a digital camera function and a GPS positioning function may be used.

DESCRIPTION OF SYMBOLS 1 Reinforcement inspection system 2 Digital camera 3 GPS receiver 4 Portable terminal 44 Processing unit 45 Storage unit 451 Image processing program 452 Reinforcing bar standard information 453 Design information 454 Image information 455 Measurement information

Claims (2)

Means for acquiring a target position which is a position of a reinforcing bar to be inspected;
Means for obtaining a measurement position obtained by measuring the position of a reinforcing bar to be photographed;
Means for determining whether or not the acquired target position matches the acquired measurement position, and outputting the determined result;
When the target position coincides with the measurement position, design information indicating a bar arrangement state that should be at the measurement position is acquired, and after storing the acquired measurement position, a reinforcing bar at the measurement position Means for acquiring image information obtained by photographing and extracting the state of the bar arrangement from the image information as measurement information;
Means for determining whether or not the acquired design information and the extracted measurement information match, and outputting the determined result;
Means for storing the image information, the stored measurement position, and the measurement information in association with each other when the design information and the measurement information match;
A bar arrangement inspection system comprising: The bar arrangement inspection system according to claim 1,
The reinforcing bar inspection system is characterized in that the position of the reinforcing bar is specified by the distance from the nearest street core.