KR102513608B1 - Smart inspection system for quality control of construction - Google Patents

Abstract

The present invention relates to a smart inspection system for construction quality control. The smart inspection system for construction quality control comprises: a connection unit which connects an external device for acquiring an image for a construction field with a terminal for delivering information for data transmission; a rebar placing detection unit which receives three-dimensional image data acquired by a three-dimensional camera having a LiDAR sensor through the connection unit to detect rebar placing in the construction field; a report writing unit which writes a result of the rebar placing detection detected by the rebar placing detection unit in a predetermined report format; a related person certification unit which provides the report written by the report writing unit to the terminal to receive checking and certification of a related person of the field; and a database unit which stores the result of the rebar placing detection by the rebar placing detection unit, the report written by the report writing unit, and a result checked and certified by the related person certification unit for each construction field. According to the present invention, the smart inspection system can increase the convenience of detection for quality improvement of construction, thereby reducing the number of personnel and time consumed for quality management of the construction, preventing quality degradation of the construction due to mistakes, and reducing the intensity of labor of quality management personnel while enabling efficient quality management.

Description

Smart inspection system for quality control of construction}

The present invention relates to a smart inspection system for quality control of construction work, and more particularly, to increase the convenience of inspection for improving the quality of construction work, thereby reducing the number of people and time required for quality control of construction work. It relates to a smart inspection system for quality control of construction work.

In general, construction quality management is a system that regulates matters to be observed by constructors from specifications designed by government agencies, supervisory institutions, or customers and monitors the process to ensure quality in the field of construction (architecture/civil engineering/engineering). , It refers to a series of processes in which a construction quality control plan (QP) is drawn up after design drawings, and inspection and inspection processes are performed according to the quality control plan in the construction process.

Due to the recent development of science technology and information and communication, technology for reducing the burden of quality control through various data processing has been developed for this quality management of construction. No. 0128237, "Construction quality management device, method, and computer-readable recording medium based on big data analysis" has been proposed, which provides multiple a vulnerable work species selection unit that selects vulnerable work species; A data analysis unit for analyzing a cause of a defect composed of workers, equipment, materials, and procedures for each of the selected plurality of vulnerable work types for each preset defect type; and a solution providing unit that transmits solutions prepared for each cause of the analyzed defects to a terminal of a construction manager for each vulnerable process.

However, the prior art has a limitation in providing convenience for inspection for improving the quality of construction work, and furthermore, has a problem that only the proposed configuration is not sufficient to ensure efficient quality control.

In order to solve the problems of the prior art as described above, the present invention increases the convenience of inspection for improving the quality of construction work, thereby reducing the number of people and time required for quality control of construction work, and accidentally The purpose is to prevent the quality deterioration of construction work due to this, and to enable efficient quality control while reducing the labor intensity of quality control personnel.

Other objects of the present invention will be easily understood through the description of the following embodiments.

In order to achieve the above object, according to one aspect of the present invention, a connection unit for connecting an external device for image acquisition and a terminal for information transfer to a construction site for transmission of data; Reinforcement inspection unit for receiving 3D image data obtained by a 3D camera having a lidar sensor through the connection unit and detecting reinforcement in a construction site; a report preparation unit for creating a report form of a predetermined form of the reinforcement inspection result detected by the reinforcement inspection unit; an official authentication unit for providing the report prepared by the report generator to the terminal so as to be confirmed and authenticated by a person concerned in the field; And a database unit for storing the results of reinforcing inspection by the reinforcement inspection unit, the report prepared by the report preparation unit, and the results confirmed and certified by the related party certification unit for each construction site; A smart inspection system for quality control is provided.

It may further include a ready-mixed-cone determination unit to check the characteristics of the ready-mixed concrete and record it as field detection data, and to provide it to the supervisor's terminal upon request.

It may further include a material verification unit that receives a KS certificate and test report for the material, provides it to the terminal upon request, and enables material comparison.

It may further include a finishing quality confirmation unit that acquires 3D image data of a 3D camera equipped with a lidar sensor for the space of a building, reviews it collectively through a monitoring system, and checks for securing finishing quality.

a reinforcement error extraction unit for extracting an error in which the interval of the reinforcement detected by the reinforcement detection unit is out of an error range from a predetermined interval; A movement trajectory extraction unit for extracting a movement trajectory of a worker who has performed the reinforcement corresponding to an error extracted by the reinforcement error extraction unit using a GPS provided in the worker's terminal; a work area extracting unit extracting a work area worked by the worker on the movement trajectory extracted by the movement trajectory extracting unit; an image acquisition unit that acquires a working image of the work area extracted by the work area extraction unit from some of CCTV cameras, action cams, smart phones, drones, and smart helmets; The image obtained by the image acquisition unit is provided to the terminal of the expert set in advance, stored in the database unit, and the quality judgment or improvement opinion returned from the expert terminal is provided to the terminal of the worker who worked in the work area. In addition, a work improvement unit for storing the database unit; and a plan correction unit for providing the corrected time required for the labor placement task reflecting the time required for error correction by the task improvement unit to a terminal of a planner determined to be quoted when establishing a work plan.

An overachievement judgment unit that calculates the amount of frame through BIM modeling or converts the 2D drawing of the construction work into a BIM file to calculate the amount of frame, and reviews the information and quantity of the construction company's completed application documents to determine overachievement; And a pile net quantity check unit that makes a stratum map by linearly interpolating the topography based on the geological column map and calculates the length of the pile according to the stratum map to confirm the net pile quantity before construction during the pile foundation pile construction of the building. can include more.

According to the smart inspection system for quality control of construction work according to the invention, it is possible to reduce the number of people and time required for quality control of construction work by increasing the convenience of inspection for improving the quality of construction work, and to prevent errors caused by mistakes. It can prevent quality deterioration of construction work, and has the effect of enabling efficient quality control while reducing the labor intensity of quality control personnel.

1 is a configuration diagram showing a smart inspection system for quality management of construction work according to an embodiment of the present invention.

Since the present invention can make various changes and have various embodiments, specific embodiments will be illustrated in the drawings and described in detail. However, this is not intended to limit the present invention to specific embodiments, and should be understood in such a way as to include all changes, equivalents, or substitutes included in the technical spirit and scope of the present invention, and may be modified in various other forms. However, the scope of the present invention is not limited to the following examples.

Hereinafter, embodiments according to the present invention will be described in detail with reference to the accompanying drawings, the same reference numerals will be assigned to the same or corresponding components regardless of reference numerals, and redundant descriptions thereof will be omitted.

1 is a configuration diagram showing a smart inspection system for quality management of construction work according to an embodiment of the present invention.

Referring to FIG. 1, the smart detection system 100 for quality management of construction work according to an embodiment of the present invention includes a connection unit 101, a rebar discharge detection unit 102, a report preparation unit 103, and official authentication. It may include a unit 104 and a database unit 105 .

The connection unit 101 connects the external devices 1, 2, 3, 4, 5, 6 for acquiring images of the construction site and the terminals 11, 12, 13, and 14 for transmitting information to transmit data. To do so, in particular, it may include a web server that provides a web page for connection with the terminals 11, 12, 13, and 14. The access server 101 inputs an ID and password to authenticate the person or legitimacy when connecting to external devices (1, 2, 3, 4, 5, 6) and terminals (11, 12, 13, 14), Device connection can be performed by an authentication procedure using a public certificate, a mobile phone or a credit card, or input or output of a predetermined signal or input or output of an identification code. Here, the external devices 1, 2, 3, 4, 5, and 6 are various devices having a shooting function for image acquisition, for example, a CCTV camera 1, an action cam 2, a smartphone 3, It may be a drone 4, a smart helmet 5, and a 360-degree camera 6. The external devices (1, 2, 3, 4, 5, 6) are individually configured to be connected to the connection unit 101 through a communication network by providing communication modules, or connected to the connection unit 101 through a communication network through a separate communication device. It can be configured so that In addition, the terminals 11, 12, 13, and 14 allow a process determined by the execution of an application or program for the execution of the service provided by the present invention, and a smartphone or tablet PC or A laptop computer or PC may be used, and terminals of various stakeholders, including a supervisor's terminal 11, a worker's terminal 12, an expert's terminal 13, and a safety officer's terminal 14, may correspond.

The reinforcement detection unit 102 receives 3D image data acquired by the 3D camera 6 having a LIDAR sensor through the connection unit 101 to detect reinforcement in a construction site. The reinforcement detection unit 102 can use the LIDAR sensor of the 3D camera 6 to detect the spacing of the reinforcement in the 3D image data obtained through the X-axis, Y-axis, and Z-axis data. It may be configured to extract an error through comparison of the data and the detected rebar spacing. Rebar arrangement data can be made through an image process or character recognition of a reinforcement map provided from the outside, or through direct input of data by a worker. These detection results may be subjected to confirmation and authentication procedures by field personnel such as workers.

When the reinforcement detection unit 102 detects reinforcement, a specific object, such as an A4 sheet or a 2 liter mineral water container, is displayed in the image together with the reinforcement, and the spacing of the reinforcement is extracted based on the size of the specific object can make it On the other hand, the 3D camera 6 may be installed on a tower crane or a gang form to enable a construction site check.

The report preparation unit 103 prepares the reinforcement inspection results detected by the reinforcement inspection unit 102 in the form of a report in a predetermined format. Here, the report may include comparison data on the bar arrangement and actual detected values for reinforcement, and may include errors on ready-mixed concrete and the existence of various detected errors, including these errors. These reports can be uploaded to the database unit 105 and provided as needed. The report writer 103 grants an image extraction function that allows the user to extract images from images acquired by external devices 1, 2, 3, 4, 5, and 6 through the terminal in order to attach necessary images. can do. The report may be configured to be automatically generated in a predetermined format by the report writing unit 103 by filling in the contents of a field of predetermined contents or by filling in the inspection results of the reinforcement inspection unit 102.

The person concerned authentication unit 104 provides the report prepared by the report writer 103 to the terminals 11, 12, 13, and 14 so that the person involved in the field can be confirmed and authenticated.

The database unit 105 stores the results of reinforcing inspection by the reinforcement inspection unit 102, the report prepared by the report writing unit 103, and the results confirmed and certified by the related certification unit 104 for each construction site. do. In addition, the database unit 105 may store information on the authenticated terminals 11, 12, 13, and 14, user information, and various other data or programs necessary for implementing the functions provided by the present invention.

Smart inspection system 100 for quality management of construction work according to an embodiment of the present invention may further include a ready-mixed concrete determination unit 106, a material confirmation unit 107 and a finish quality confirmation unit 108.

The ready-mixed concrete determination unit 106 can confirm the characteristics of the ready-mixed concrete, record it as field detection data, and provide it to the supervisor's terminal 11 upon request. Here, the ready-mixed concrete determination unit 106 receives information related to the strength, slump, and aggregate of the ready-mixed concrete as characteristics of the ready-mixed concrete, and records field inspection data.

The material confirmation unit 107 receives the KS certificate and test report for the material, and provides them to the terminals 11, 12, 13, and 14 upon request, enabling material comparison. The material confirmation unit 107 is a KS certificate and test report for the material, and may be configured to receive certification data for the material through reading such as a QR code.

The finishing quality confirmation unit 108 acquires 3D image data of the 3D camera 6 equipped with a lidar sensor for the space of the building, reviews it collectively through a monitoring system (not shown), and checks to ensure finishing quality make it possible In the case of apartment houses and large buildings, the finishing quality confirmation unit 108 is difficult to check directly by the operator, after space-by-space shooting using a 3D camera 6 equipped with a lidar sensor, collective review through a monitoring system It is possible to provide 3D images so that it can be done, and after checking the quality of finishing through this review, it can be marked and delivered to the terminal of the person concerned including the worker. In addition, the finishing quality confirmation unit 108 can convert various information and extraction results provided by the present invention to be used as data in a separate application for a smartphone.

The smart detection system 100 for quality management of construction work according to an embodiment of the present invention includes a reinforcement error extraction unit 109, a movement trajectory extraction unit 110, a work area extraction unit 111, an image acquisition unit ( 112), a work improvement unit 113 and a plan correction unit 114 may be further included, and furthermore, an overwork determination unit 115 and a file net quantity check unit 116 may be further included.

The reinforcement error extracting unit 109 may extract an error out of the error range from the interval of the reinforcement detected by the reinforcement detection unit 102 at a fixed interval. The reinforcement error extraction unit 109 allows the error range to be set by the supervisor's terminal 11 or the worker's terminal 12 or the like.

The movement trajectory extractor 110 can extract the movement trajectory of the worker who performed the reinforcement corresponding to the error extracted by the reinforcement error extractor 109 using the GPS provided in the worker's terminal 12. . That is, the movement trajectory extraction unit 110 processes the images provided from the external devices 1, 2, 3, 4, 5, and 6 for the worker who worked in the area where the error was extracted in the reinforcement error extraction unit 109. to check through. At this time, the operator may agree to permit location tracking by accessing the terminal 12 to the connection unit 101 .

The work area extraction unit 111 may extract a work area worked by a worker on a movement trajectory extracted by the movement trajectory extraction unit 110 . To this end, the work area extraction unit 111 matches the movement trajectory within the construction site, and based on the matching result, image processing for images provided from external devices 1, 2, 3, 4, 5, and 6 is performed. It allows you to check the working area of the worker.

The image acquisition unit 112 converts the work image of the work area extracted by the work area extractor 111 to a CCTV camera (1), an action cam (2), a smartphone (3), a drone (4), and a smart helmet ( 5) can be acquired from some of them. The image acquisition unit 112 records images provided from the external devices 1, 2, 3, 4, and 5 connected to the connection unit 101 in real time by time, place, and operator, and among these images, the above work area During the time the worker stays in, it can be configured to extract images from the device used by the worker or the device that shoots the area, and, if necessary, the operator to receive the image obtained from the device that can be controlled by the operator. It is possible to provide a video request message to the terminal 12 of .

The work improvement unit 113 provides the image acquired by the image acquisition unit 112 to the expert's terminal 11, stores it in the database unit 105, and sends a reply from the expert's terminal 11. In addition to providing the resultant judgment or improvement opinion to the terminal 12 of the worker who worked in the work area, it can be stored in the database unit 105. Here, an expert is a person with in-depth knowledge or qualifications about the construction industry, and can be determined through a pre-screening, can also be provided with consulting fees for advice, and can check whether the work in the overlapping area has been completed normally through the provided video. It is possible to check and provide a judgment on whether or not there is an abnormality, and to provide a solution for improvement in the part that needs improvement due to an error in the work process. Therefore, the worker can be provided with an expert's quality judgment or improvement opinion through his/her terminal 12, enabling accurate construction work and retaining the ability to solve the same problem in the future.

The plan correction unit 114 may provide the corrected labor placement work time, which reflects the time required for error improvement by the work improvement unit 114, to the planner's terminal (not shown) determined to be quoted when establishing a work plan. there is. The plan correction unit 114 may provide the corrected time by multiplying the time required by the manager by the manager's pre-set ratio to the time required for the general dispatch work. Here, the preset ratio may be determined within a range of 1.0 to 1.3 in consideration of the time required for error correction by experts.

The achievement judgment unit 115 calculates the frame quantity through BIM (Building Information Modeling) modeling, or converts the 2D drawing of the construction work into a BIM file to calculate the frame quantity, Reviewing the information and quantity of the construction company's payment application documents Thus, it can be used to judge overexertion. Here, the amount of frame material may be concrete, formwork, reinforcing bars, and the like. Therefore, the overachievement determination unit 115 calculates the amount of framed material using an algorithm determined from BIM modeling or BIM files, determines whether the amount of ready-made money is appropriate from the calculated amount of framed material, and determines the excessiveness.

The pile net quantity confirmation unit 116 makes a stratum map by linearly interpolating the topography based on the geologic column map during construction of the building foundation pile, calculates the length of the pile according to the stratum map, and checks the pile net quantity in advance before construction. and to ensure safety and quality.

The smart detection system 100 for quality control of construction work according to an embodiment of the present invention permits or records the entry of workers by receiving the detection signal of the sensor detection unit 8 that detects the access control sensor 7 It is possible to perform the necessary measurement and fire detection in real time through the measuring instrument 9 and the fire sensor 10 installed at the construction site, and to inform the terminal 14 in charge of safety when the fire is detected. and various artificial intelligence (AI) algorithms or machine learning algorithms may be used in judgment, comparison, and extraction.

According to the smart inspection system for quality control of construction work according to the present invention, it is possible to reduce the number of people and time required for quality control of construction work by increasing the convenience of inspection for improving the quality of construction work, It can prevent quality deterioration of construction work due to mistakes, and it is possible to perform efficient quality control while reducing the labor intensity of quality control personnel.

As described above, the present invention has been described with reference to the accompanying drawings, but various modifications and variations can be made without departing from the technical spirit of the present invention. Therefore, the scope of the present invention should not be limited to the described embodiments, and should be defined by not only the claims to be described later, but also those equivalent to these claims.

1: CCTV Camera 2: Action Cam
3: Smartphone 4: Drone
5: Smart Helmet 6: 3D Camera
7: access control sensor 8: sensor detection unit
9: instrument 10: fire sensor
11: Supervisor's terminal 12: Worker's terminal
13: expert's terminal 14: safety manager's terminal
101: connection part 102: reinforcement inspection part
103: report writing department 104: related certification department
105: database unit 106: ready-mixed concrete determination unit
107: material check unit 108: finish quality check unit
109: reinforcement error extraction unit 110: movement trajectory extraction unit
111: work area extraction unit 112: image acquisition unit
113: work improvement department 114: planning correction department
115: achievement judgment unit 116: file net quantity confirmation unit

Claims (6)

A connection unit for connecting an external device for acquiring images of a construction site and a terminal for transmitting information to transmit data;
Reinforcement inspection unit for receiving 3D image data obtained by a 3D camera having a lidar sensor through the connection unit and detecting reinforcement in a construction site;
a report preparation unit for creating a report form of a predetermined form of the reinforcement inspection result detected by the reinforcement inspection unit;
an official authentication unit for providing the report prepared by the report generator to the terminal so as to be confirmed and authenticated by a person concerned in the field;
a database unit for storing a result of the reinforcing inspection by the reinforcing inspection unit, a report prepared by the report preparing unit, and a result confirmed and certified by the related party authentication unit for each construction site;
A ready-mixed-cone determination unit that checks the characteristics of the ready-mixed concrete and records it as on-site inspection data, and provides it to the supervisor's terminal upon request;
A material confirmation unit that receives the KS certificate and test report for the material and provides it to the terminal upon request, enabling material comparison;
A finishing quality confirmation unit that acquires 3D image data of a 3D camera equipped with a lidar sensor for the space of a building and reviews it collectively through a monitoring system to enable a check to ensure finishing quality;
An overachievement judgment unit that calculates the amount of frame through BIM modeling or converts the 2D drawing of the construction work into a BIM file to calculate the amount of frame, and reviews the information and quantity of the construction company's completed application documents to determine overachievement;
Pile net quantity confirmation unit for making a stratum map by linearly interpolating the topography based on the geologic column map, calculating the length of the pile according to the stratum map, and checking the net quantity of the pile in advance before construction;
a reinforcement error extraction unit for extracting an error in which the interval of the reinforcement detected by the reinforcement detection unit is out of an error range from a predetermined interval;
A movement trajectory extraction unit for extracting a movement trajectory of a worker who has performed the reinforcement corresponding to the error extracted by the reinforcement error extraction unit using a GPS provided in the worker's terminal;
a work area extracting unit extracting a work area worked by the worker on the movement trajectory extracted by the movement trajectory extracting unit;
an image acquisition unit that acquires a working image of the work area extracted by the work area extraction unit from some of CCTV cameras, action cams, smart phones, drones, and smart helmets;
The image obtained by the image acquisition unit is provided to the terminal of the expert set in advance, stored in the database unit, and the quality judgment or improvement opinion returned from the expert terminal is provided to the terminal of the worker who worked in the work area. In addition, a work improvement unit for storing the database unit; and
A plan correction unit for providing a corrected time required for a work arrangement reflecting the time required for error improvement by the work improvement unit to a terminal of a planner determined to be quoted when establishing a work plan;
including,
The plan correction unit, a smart inspection system for quality management of construction work, characterized in that for providing the corrected time multiplied by the ratio of 1.0 to 1.3 preset by the manager to the actual time required for the placement work. delete delete delete delete delete

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