KR102106633B1 - Road pavement and defect detection method for read pavement - Google Patents

Abstract

The present invention relates to a road pavement. The present invention also relates to a method of detecting defects positioned on a surface and an inner surface of the road pavement. More specifically, the road pavement includes: an auxiliary base layer (12) positioned on an upper portion of a road body (11) and made of thick aggregates; a base layer (13) positioned on an upper portion of the auxiliary base layer (12) and made of aggregates smaller than the thick aggregates; a surface layer (14) positioned on an upper portion of the base layer and made of asphalt or concrete; and a waterproof layer (15) positioned on an upper portion of the surface layer.

Description

Road pavement and defect detection method for read pavement}

The present invention relates to a road pavement, and also to a method for detecting defects located on the road pavement surface and the inner surface.

Patent invention 001 relates to a printing method capable of dynamically calling a filter, a recording medium containing a program capable of performing the printing method, and a host device, and a filter setting having at least one filter corresponding to a printing option of a document to be printed A printing method using information, the method comprising: selecting a printing option; Changing the filter setting information to correspond to the print option; And transmitting print data by applying a print option according to the changed filter setting information.

Patent invention 002 relates to a vehicle ground exploration system and a method thereof, a GPS receiver that receives a GPS signal, a radar that generates scan data inside the ground using electromagnetic waves, and receives first data by receiving the GPS signal and the scan data Including a first control unit for generating a first storage unit for storing the first data, it is proposed to investigate the internal state of the ground while moving to a vehicle and automatically store and manage the results.

Patent invention 003 relates to a surface radar exploration and positioning system through simultaneous use of geographic information system and road surface image information. In a surface transmissive radar exploration and positioning system, a ground transmissive radar (GPR, Ground) that generates underground video information Penetrating Radar) unit; A moving device towing the surface transmission radar and allowing the user to board; And a VRS-GPS receiver unit equipped with a VRS-GPS measurement function and a first mobile device that is connected to the VRS-GPS receiver unit and is connected to the mobile device to generate VRS-GPS location information. -A GPS system, a mobile communication network using a mobile communication base station-a second mobile device for generating location information, and a video shooting camera for generating mobile video information by taking an external image of the mobile device while the mobile device is moving, and Underground image information, the VRS-GPS location information and the mobile communication network-a database for storing location information and integrated location information including the mobile image information, the underground image information, the VRS-GPS location information and the mobile communication network- A display for displaying at least one or more of integrated location information including location information and the moving image information, and the indicator transmission radar and the VRS-GPS system And a second mobile device, the image capturing camera, and a control unit for controlling at least one of the database and the display. The control unit generates the integrated location information, and generates the integrated location information. We present a geospatial information system that matches the information with the underground video information in time series and stores it in the database, and a surface radar exploration positioning system through simultaneous use of road surface video information.

Patent invention 004 relates to a surface transmission radar exploration system, and more specifically, consists of an information processing unit that processes information collected by the information collection unit in the information transmission / reception unit and an information display unit that displays the information. An image acquisition unit installed at a rear end and equipped with a lens adapter and a digital camera for simultaneously acquiring front, side and topographical and ground images on the ground related to location information of a pipeline and a cavity; An indicator transmission radar installed under the joint exploration vehicle to acquire pipeline and joint information; An encoder installed in front of one side of the surface transmission radar to measure the driving distance and the traveling speed of the joint exploration vehicle when the joint exploration vehicle travels on the upper surface of the pipeline; A survey analysis program that synthesizes, edits, and analyzes images using the data collected through the vibration frequency feature extraction module that collects and stores the image data obtained from the image acquisition unit and electromagnetic wave data obtained from the surface transmission radar It proposes a surface transmission radar exploration system that includes a built-in module-based intelligent image analysis device.

KR 10-1219428 B1 (Registration date 01 Jan 2013) KR 10-1902630 B1 (Registration date September 19, 2018) KR 10-1886932 B1 (Registration date August 2, 2018) KR 10-1895835 B1 (Registration date August 31, 2018)

The present invention relates to a road pavement, and also to a method for detecting defects located on the road pavement surface and the inner surface.

The present invention is an invention for the road pavement (10), specifically located above the furnace body (11), the auxiliary base layer (12) formed of a coarse aggregate; A base layer 13 positioned on the auxiliary base layer 12 and formed of aggregate smaller than coarse aggregate; A surface layer 14 positioned on the base layer and formed of asphalt or concrete; It is made of a configuration comprising a; waterproof layer 15 located on the top of the surface layer.

The present invention is an invention for the road pavement (10), in the invention presented above, the waterproof layer comprises a coating formed of epoxy.

The present invention is an invention for a method for measuring a defect on the road pavement 10, specifically, a measuring step (S200) of measuring the surface and the inner surface of the road pavement 10 with a plurality of sensors 112 mounted on the measurement device 111 ; After the measuring step, the server 120 determines a defect of the pavement defect determining step (S300); After the defect determination step, the budget calculation step of calculating the compensation budget (S410); After the defect determination step, a repair method selection step of selecting a repair method (S420); After the defect determination step, it comprises a configuration comprising a; risk evaluation step (S430) to calculate the risk.

The present invention relates to a method for measuring defects on the pavement 10, and in the previously proposed invention, a sensor correction step (S100) for correcting an operation state of the sensor before the measurement step.

The present invention relates to a method for measuring defects on the pavement 10, and in the previously proposed invention, a location information input step (S220) for receiving location information among the measurement steps.

The present invention is an invention for a method for measuring a defect on the pavement 10, and in the previously proposed invention, a surface photographing step (S231) of photographing a road surface by a camera 112c sensor during the measuring step; And a first defect detection step (S232) of detecting a crack 21 and / or patching 22 on the road surface after the surface photographing step.

The present invention is an invention for a method for measuring defects on the pavement (10), and in the previously proposed invention, an inner surface for determining the cavity (24) on the inner surface of the road by a ground transmission radar (GPR) (112g) during the measurement step. Photographing step (S241); And a second defect detection step (S242) of detecting a cavity on the inner surface of the road after the inner photographing step.

The present invention is an invention for a method for measuring defects on the pavement (10), and in the above-mentioned invention, a thickness detection step of photographing the road thickness by a ground transmission radar (GPR) and a laser 112f in the above measurement step ( S251); A third defect detection step (S252) of detecting the thickness of the inner surface of the road after the thickness detection step; It includes; after the third defect detection step, calculating the dielectric constant (S253) to calculate the dielectric constant of the pavement.

The present invention is an invention for a method for measuring defects on the pavement (10), and in the previously proposed invention, a first information transmission step (S210) of transmitting the first information of the measurement result to the server after the measurement step; And / or a second information transmission step (S310) of transmitting the second information of the determination result to the server after the defect determination step.

The present invention is an invention for a method for measuring defects on the pavement (10), and in the previously proposed invention, a weather information input step (S321) of inputting weather information from the Korea Meteorological Administration during the defect determination step; Of the defect determination step, the construction information input step of inputting the road construction information (S322); Of the defect determination step, the use history information input step (S323) for inputting the road use history; includes any one or a plurality of steps selected.

The present invention is an invention for a method for measuring defects on the pavement (10), and in the above-mentioned invention, a repair step (S421) for repairing the pavement after the maintenance method selection step; A third information transmission step (S422) of transmitting the third information of the packaging defect to the server during the maintenance step; A data comparison step (S423) of comparing the first information or the second information and the third information in the defect determination step by a server after the third information transmission step; After the data comparison step, a program correction step of correcting the program by analyzing the error of the first information (S424); And an update step (S425) of transmitting the modified program to the measuring device after the program modification step.

The present invention relates to a recording medium, and specifically includes a computer program capable of executing the measurement method according to any one of Examples 3 to 11.

Since the present invention detects a defect in the pavement during operation of the transport device, the detection efficiency is high.

The present invention has an effect of simultaneously measuring defects on the road surface and the inner surface.

The present invention has an effect of storing and managing measurement data in a server.

Since the present invention utilizes a plurality of ground transmission radars (GPR), cameras, and lasers, accuracy can be improved.

Since the present invention includes a sensor calibration process, it is possible to improve sensor precision.

1 is a cross-section of road pavement
2 is a conceptual diagram of road pavement defects
3 to 7 is a flow chart defect measurement method flow chart.

Hereinafter, the most preferred embodiment of the present invention will be described in detail in order to describe in detail that a person skilled in the art to which the present invention pertains can easily implement the present invention.

The numbers cited in the examples below are not limited to the targets of citation and may be applied to all examples. An object exhibiting the same purpose and effect as the configuration presented in the Examples corresponds to an equivalent substitution object. The higher concept presented in the examples includes lower concept objects that are not described.

[Example 1] The present invention is an invention for the road pavement 10, specifically located on the furnace body 11, the auxiliary base layer 12 formed of a coarse aggregate; A base layer 13 positioned on the auxiliary base layer 12 and formed of aggregate smaller than coarse aggregate; A surface layer 14 positioned on the base layer and formed of asphalt or concrete; It is made of a configuration comprising a; waterproof layer 15 located on the top of the surface layer.

[Example 2] The present invention is an invention for the road pavement 10, and in Example 1, the waterproof layer is formed by coating with epoxy.

[Embodiment 3] The present invention is an invention for a method for measuring a defect on the road pavement 10, and specifically, a measurement for measuring the surface and the inner surface of the road pavement 10 with a plurality of sensors 112 mounted on the measuring device 111. Step S200; After the measuring step, the server 120 determines a defect of the pavement defect determining step (S300); After the defect determination step, the budget calculation step of calculating the compensation budget (S410); After the defect determination step, a repair method selection step of selecting a repair method (S420); After the defect determination step, it comprises a configuration comprising a; risk evaluation step (S430) to calculate the risk.

The present invention is an invention for a method for automatically determining a combination of a surface or an inner surface of a road pavement and providing maintenance information. As a specific time series step, the pavement is measured by a measuring device equipped with a composite sensor. Determination of defects on the surface and inner surface based on the measured data, calculation of repair budget based on the determined defect, selection of repair method, and risk assessment. The measuring step is performed by a measuring device. The measuring device 111 is fixed to the moving means 130, combines, or forms a structure to be towed. The moving means 130 is a vehicle 131, a vehicle towing carrier 132, or an aircraft (such as a drone <133>).

[Embodiment 4] The present invention relates to a method for measuring a defect on a road pavement 10, and in Embodiment 3, a sensor calibration step (S100) for correcting an operation state of the sensor before the measurement step is included.

The present invention relates to a method for calibrating a sensor in defect measurement. The measuring device of the present invention incorporates a plurality of sensors. The sensor comprises a ground transmission radar (GPR), a camera, and a laser, and the sensors are preferably formed in plural. The sensor calibration step is performed prior to the measurement step. Since the sensor calibration step is for correcting measurement errors, noise for internal and external vibrations generated during operation can be removed, and noise can be processed by software. The sensor calibration step comprises a preliminary measurement step and a preliminary calibration step. Specifically, a preliminary measurement step of the pavement with reference to which an artificial defect exists (S111); After the preliminary measurement step, a preliminary signal detection step of the sensor signal (S112); After the preliminary signal detection step, a correction amount detection step of comparing with the reference data (S113); After the correction amount detection step, a preliminary correction step (S114) for correcting the sensor signal.

[Embodiment 5] The present invention relates to a method for measuring a defect on a road pavement 10, and in Embodiment 3, a location information input step (S220) of receiving location information among the measurement steps.

The present invention is to check the defect location while measuring the defects of the pavement. The location information input step is performed by a GPS receiver 112a existing inside the measurement device. Or it is made by a gyroscope 112b existing inside the measuring device.

[Embodiment 6] The present invention is an invention for a method for measuring defects in a road pavement 10, and in Embodiment 3, a surface photographing step of photographing a road surface by a camera 112c sensor in the measurement step (S231) ; And a first defect detection step (S232) of detecting a crack 21 and / or patching 22 on the road surface after the surface photographing step.

The present invention is a method for detecting cracks and patching on a road surface. Specifically, it is detected by a camera built into the measuring device. Since the measuring device is transported by the transporting means, the surface is photographed in real time, and the shape and size of cracks and patching are determined based on the photographed information. Among the surface photographing step, an illuminance measurement step (S230a) for measuring the illuminance by the illuminance sensor 112d; After the illuminance measurement step, the illuminance check step of checking the illuminance by the signal of the illuminance sensor (S230b); After the step of confirming the illuminance, the light 112e emits light to maintain a certain amount of illuminance (S230c). In the illumination maintenance step, the image of the camera is to secure accuracy according to the ambient illumination. In addition, the illuminance maintenance step is performed in real time by the illuminance measurement step and the illuminance check step presented above. The first defect detection step includes a noise removal step. Since a foreign material or the like located on the road surface can be recognized as a crack and patching, after the first defect detection step, an image analysis step (S232a); It includes; after the image analysis step, a foreign material selection step (S232b) for selecting the foreign matter 31 by the program; after the foreign matter selection step, a noise removal step (S232c) to remove the results other than cracks and patching. It is also possible to determine the curvature 23 of the road. The curvature of the road is made by the laser sensor 112f . The laser sensor projects the road slope at an angle of inclination, and the camera image can determine the curvature of the road by determining the line of the laser projected on the road. Specifically, a laser projection step of projecting a laser beam during the surface photographing step; Of the laser projection step, a laser image photographing step of photographing the laser beam; And a bending determination step of determining a degree of bending after the laser image photographing step.

[Embodiment 7] The present invention is an invention for a method for measuring defects on a road pavement 10, and in Embodiment 3, during the measurement step, a cavity 24 on the inner surface of the road by a ground transmission radar (GPR) 112g . Determining the inner photographing step (S241); And a second defect detection step (S242) of detecting a cavity on the inner surface of the road after the inner photographing step.

The present invention relates to a method for detecting a cavity on the inner surface of a road pavement. A ground transmission radar (GPR) is a device that transmits a radar to the ground to identify cavities. The surface transmission radar (GPR) is a first surface transmission radar (GPR) measuring a vertical surface (first vertical surface), a second surface transmission radar (GPR) measuring a vertical surface formed perpendicular to the vertical surface, and a single layer of the surface. It consists of a third indicator transmission radar (GPR) to measure. The measuring device accommodates three ground transmission radars (GPRs) and scans the inside of the road in real time during the transport process of the transport means. The second defect detection step is a step of checking the location and size of the cavity on the inner surface of the road. Defects are detected by combining images of the first, second, and third surface transmission radar (GPR) presented above. Specifically, individual measurement steps of the first, second, and third surface transmission radar (GPR) (S241a); A data combining step of combining individual information after the individual measuring step (S242b); After the data combining step, a joint detection step (S242c) of detecting the location and size of the cavity by checking the overlapping space of the data.

[Embodiment 8] The present invention is an invention for a method for measuring defects in a road pavement 10, and in Embodiment 3, during the measurement step, a road thickness is photographed by a ground transmission radar (GPR) and a laser 112f. Thickness detection step (S251); A third defect detection step (S252) of detecting the thickness of the inner surface of the road after the thickness detection step; It includes; after the third defect detection step, calculating the dielectric constant (S253) to calculate the dielectric constant of the pavement.

The present invention relates to a method for measuring the thickness of a pavement layer. Road pavement is composed of a plurality of layers, and each layer is thinned by a weight load. Therefore, after a certain period of time has elapsed, the thinned layer must be repaired to maintain the function of pavement. To achieve this, the road thickness must be measured to confirm the coupling. This can be detected by checking the signals of the laser and ground transmission radar (GPR). The distance between the ground transmission radar (GPR) and the ground is measured by a laser, and the thickness of the road pavement is measured by comparing the reflection data of the ground surface, base layer, and sub-base layer by the ground transmission radar (GPR).

[Embodiment 9] The present invention is an invention for a method for measuring road pavement 10 defects, and in Embodiment 3, after the measurement step, a first information transmission step (S210) of transmitting the first information of the measurement result to the server ); And / or a second information transmission step (S310) of transmitting the second information of the determination result to the server after the defect determination step.

The present invention is to transmit the sensor signal of the measuring device to the server. A signal conversion step of converting the signal detected by the sensor into a digital signal; A code conversion step of converting to a designated code according to each sensor after the signal conversion step; A data storage step of storing data after the code conversion step; After the data storage step, it consists of a transmission step of transmitting the stored data. The transmission step has a first information transmission step of transmitting the signal of the sensor to the server, or is divided into a second information transmission step of determining a defect by a program inside the measurement device and then sending the determined result. Alternatively, the first information transmission step and the second information transmission step may be overlapped. The data may be wirelessly transmitted to a server through radio waves, or temporarily stored in a memory device and then transmitted to a server. The server is located in the control center and can receive a plurality of measurement device signals in real time.

[Embodiment 10] The present invention is an invention for a method for measuring road pavement 10 defects, and in Embodiment 3, during the defect determination step, a meteorological information input step (S321) for inputting meteorological information from the Korea Meteorological Administration; During the step, the construction information input step of inputting the road construction information (S322); In the defect determination step, a use history information input step of inputting a road use history (S323); It includes any one or a plurality of steps selected from.

Defects in pavement can occur during the construction phase and can also occur during road use. When generated during use, defects may occur depending on the load acting on the road, or may be caused by climatic effects. Therefore, in the determination of defects, weather information and data of use history and construction history are required. The weather information is divided into years, months, and days, and the degree of flooding, width setting, and day adjustment are accommodated as data. The construction information receives construction state information inside each road. Specifically, data such as construction thickness, aggregate size, and the like are input. The usage history information is inputted after the pavement of roads, such as traffic volume and traffic weight.

[Embodiment 11] The present invention is an invention for a method for measuring road pavement 10 defects, and in Embodiment 3, a repair step of repairing road pavement after the maintenance method selection step (S421); A third information transmission step (S422) of transmitting the third information of the packaging defect to the server during the maintenance step; A data comparison step (S423) of comparing the first information or the second information and the third information in the defect determination step by a server after the third information transmission step; After the data comparison step, a program correction step of correcting the program by analyzing the error of the first information (S424); And an update step (S425) of transmitting the modified program to the measuring device after the program modification step.

The present invention relates to a step of correcting a sensor driving program or a defect determination program. The combination obtained by the defect detection method of the present invention stores data in a server. Repair is performed based on the stored data, and defects are measured in the repair process. The measured data is transmitted to a server, and data measured by a sensor and data measured by a maintenance person can be compared. By the comparison result, it is possible to confirm the measurement precision of the measuring device, and the program is corrected to improve the measurement precision. The corrected program is transmitted to a sensor drive program or a defect determination program to be updated. This is repeated several times, and the repeated data is stored in the server storage device to modify the program itself and update the device itself.

[Example 12] The present invention relates to a recording medium, and specifically includes a computer program capable of executing the measurement method according to any one of Examples 3 to 11.

The present invention is a program. The steps of the embodiments presented above are programmed as algorithms, and the programmed storage medium is the object of the invention.

10: road pavement 11: Noche
12: auxiliary base 13: base layer
14: surface layer 15: waterproof layer
21: Crack 22: Patching
23: bend 24: cavity
111: measuring device 112: sensor
120: server 130: means of transportation
131: vehicle 132: vehicle towing carrier
133: Aircraft S100: Sensor calibration step
S111: Preliminary measurement step S112: Preliminary signal detection step
S113: Correction amount detection step S114: Preliminary correction step
S200: Measurement step S210: First information transmission step
S220: Position information input step S231: Surface photographing step
S232: First defect detection step S241: Inner shooting step
S242: second defect detection step S251: thickness detection step
S252: Third defect detection step S253: Dielectric constant calculation step
S300: Defect determination step S310: Second information transmission step
S321: Weather information input step S322: Construction information input step
S323: Usage history information input step S410: Budget calculation step
S420: Selecting the repair method S421: Repairing step
S422: third information transmission step S423: data comparison step
S424: Program modification step S425: Update step
S430: risk assessment step

Claims (12)

delete delete In the road pavement defect measurement method,
A measuring step of measuring the surface and inner surface of the road pavement 10 with a plurality of sensors 112 mounted on the measuring device 111 (S200);
After the measuring step, the server 120 determines a defect of the pavement defect determining step (S300);
After the defect determination step, the budget calculation step of calculating the compensation budget (S410);
After the defect determination step, a repair method selection step of selecting a repair method (S420);
After the defect determination step, the risk evaluation step of estimating the risk (S430);
In the measurement step, a surface photographing step (S231) of photographing a road surface by a camera 112c sensor;
A first defect detection step (S232) of detecting cracks 21 and patching 22 of the road surface after the surface photographing step;
After the first defect detection step, the image analysis step (S232a);
After the image analysis step, the foreign material selection step of selecting the foreign matter 31 by the program (S232b);
After the foreign material selection step, noise removing step (S232c) to remove the results other than cracks and patching;
Of the measuring step, the inner photographing step (S241) for determining the cavity 24 of the inner surface of the road by the surface transmission radar (112g );
A second defect detection step (S242) of detecting a cavity on the inner surface of the road after the inner shooting step;
In the measurement step, a thickness detection step (S251) of photographing the road thickness by the surface transmission radar and the laser (112f);
A third defect detection step (S252) of detecting the thickness of the inner surface of the road after the thickness detection step;
After the third defect detection step, calculating the dielectric constant of the road pavement dielectric constant (S253);
Among the defect determination steps, the weather information input step (S321) for inputting weather information from the Korea Meteorological Administration ;, construction information input step (S322) for inputting road construction information; and usage history information input step (S323) for inputting road usage history Defect measurement method comprising any one or a plurality of steps selected from;.
The method according to claim 3,
Defect measurement method comprising; before the measurement step, a sensor calibration step (S100) for correcting the operating state of the sensor.
The method according to claim 3,
Defect measurement method comprising a; position information input step (S220) of receiving the position information of the measurement step.
delete delete delete The method according to claim 3,
A first information transmission step (S210) of transmitting the first information of the measurement result to the server after the measurement step; And
And a second information transmission step (S310) of transmitting the second information of the determination result to the server after the defect determination step.
delete The method according to claim 3,
After the repair method selection step, repair step of repairing the pavement (S421);
A third information transmission step (S422) of transmitting the third information of the packaging defect to the server during the maintenance step;
A data comparison step (S423) of comparing the first information or the second information and the third information in the defect determination step by a server after the third information transmission step;
After the data comparison step, a program correction step of correcting the program by analyzing the error of the first information (S424);
And an update step (S425) of transmitting the modified program to the measuring device after the program modification step.
A measuring step of measuring the surface and inner surface of the road pavement 10 with a plurality of sensors 112 mounted on the measuring device 111 (S200);
After the measuring step, the server 120 determines a defect of the pavement defect determining step (S300);
After the defect determination step, the budget calculation step of calculating the compensation budget (S410);
After the defect determination step, a repair method selection step of selecting a repair method (S420);
After the defect determination step, the risk evaluation step of estimating the risk (S430);
In the measurement step, a surface photographing step (S231) of photographing a road surface by a camera 112c sensor;
A first defect detection step (S232) of detecting cracks 21 and patching 22 of the road surface after the surface photographing step;
After the first defect detection step, the image analysis step (S232a);
After the image analysis step, the foreign material selection step of selecting the foreign matter 31 by the program (S232b);
After the foreign material selection step, noise removing step (S232c) to remove the results other than cracks and patching;
Of the measuring step, the inner photographing step (S241) for determining the cavity 24 of the inner surface of the road by the surface transmission radar (112g );
A second defect detection step (S242) of detecting a cavity on the inner surface of the road after the inner shooting step;
In the measurement step, a thickness detection step (S251) of photographing the road thickness by the surface transmission radar and the laser (112f);
A third defect detection step (S252) of detecting the thickness of the inner surface of the road after the thickness detection step;
After the third defect detection step, calculating the dielectric constant of the road pavement dielectric constant (S253);
Among the defect determination steps, the weather information input step (S321) for inputting weather information from the Korea Meteorological Administration ;, construction information input step (S322) for inputting road construction information; and usage history information input step (S323) for inputting road usage history ; A recording medium containing a computer program capable of executing a measurement method according to any one or a plurality of steps selected from among them.

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