KR101044605B1 - System for managing configuration of long span bridge cable using location-based system, and method for the same - Google Patents

Abstract

On the basis of the latest location-based system (LBS) of advanced wireless communication engineering, it is possible to detect risk factors according to the shape of the cable during the construction of long bridges such as suspension bridges or cable-stayed bridges or during public use. Provided are a long bridge cable configuration management system using a location-based system and a method thereof. A long bridge cable shape management system using a location-based system includes: at least one LBS sensor installed at a predetermined position according to a shape of a long bridge cable, and measuring cable tension by position of the long bridge cable to generate cable shape information; Cable shape information collecting unit for collecting the cable shape information from the LBS sensor; A risk factor DB in which an allowable range corresponding to a limit value of tension for each location of a long bridge cable is stored; Cable shape information analysis unit for analyzing the risk of the long bridge cable by the location of the long bridge cable by comparing the cable shape information and the allowable range stored in the risk factor DB; And an analysis information transmission unit for transmitting the analysis information analyzed by the cable shape information analysis unit, wherein at least one LBS sensor receives the position data from the location-based system for maintenance during construction, in common use or after construction, respectively. Correct the error of bridge cable shape information.

Cable, Configuration Management, Long Bridge, LBS, Suspension Bridge, Cable-Stayed Bridge, Wireless Communication Module

Description

System for managing configuration of long span bridge cable using location-based system, and method for the same

The present invention relates to the shape management of a long bridge cable, more specifically, to detect the risk factors according to the shape of the cable for the maintenance of the long span bridge (long suspension bridge, such as suspension bridge or cable-stayed bridge) during construction, common use or post-construction The present invention relates to a system and method for managing the shape of a long bridge cable using a location based system (LBS).

Recently, cable-supported long bridges supported by cables, such as cable-stayed bridges or suspension bridges, have been widely constructed. For example, West Sea Bridge, Gwangan Bridge, and Golden Gate Bridge are widely known as cable-supported long bridges. Most of these long bridges are designed with long spans and are greatly affected by the vibrations caused by wind and vehicle loads. In addition, the shape of the entire long bridge may be changed in the long term due to the outside temperature, the slope of the pylon, the extension of the cable and the point condition, the movement of the anchorage, and the like.

Therefore, it is necessary to constantly grasp these change factors and evaluate the health of long bridges. In particular, in the case of suspension bridges, it is important to determine the shape position in order to evaluate the safety of the long bridges because the state change of the long bridges is represented by the change in the sag of the main cable.

1 is a view for schematically explaining a method for managing a long bridge cable shape using GPS surveying according to the prior art, and FIG. 2 is a method for managing a long bridge cable shape using a total station (TS) survey according to the prior art. FIG. 3 is a view for schematically explaining a long bridge cable shape management method using a measurement sensor according to the prior art.

Conventional suspension bridge structure 10, as shown in Figures 1 to 3, steel or reinforced concrete structure column tower 11, the cable 12 suspended on the column tower 11, the top plate or girders of the long bridge ( 13), the pier 14 supporting the girder 13, a hanger 15 hanging on the cable 12 to guide the tension of the cable in the earth direction and one side of the cable 12 is fixed to the ground It is configured to include an anchorage (16) or the like.

Referring to FIG. 1, a method for managing a shape of a long bridge cable using a GPS survey according to the related art is to analyze a displacement amount of a measurement according to a time zone using a GPS 20, and to monitor a displacement of a long bridge pylon. Mainly used. At this time, the position data receiving unit 21 is installed on the long bridge main column. However, it is difficult to economically observe the cable displacement by installing the position data receiver 22 on the cable 12, and there is a problem that additional costs are required because the communication technology must be supplemented.

Referring to FIG. 2, a long bridge cable shape management method using a total station (TS) measurement according to the related art uses the total station 30, and is widely used for relatively precise, complicated, and quick surveying. At this time, the total station 30 has an electronic theodolite function and an electromagnetic distance measurement (EDM) distance measurement function at the same time, but is not suitable for precision lattice measurement, and in particular, it is troublesome to attach the reflector 31 to the object. There is this.

Referring to FIG. 3, the long bridge cable shape management method using a measurement sensor according to the related art is possible to perform quick surveying at various positions of the cable through a separate measurement sensor 40, but maintain the overall sensor measurement system. It is difficult to manage, and there is a problem in that a high cost for such maintenance is required.

In addition to the above-mentioned long bridge cable shape management methods, there is a three-dimensional laser scanning method. The three-dimensional laser scanning method realizes accurate cable shape with very high accuracy in close proximity, but for example, a suspension bridge constructed at sea In this case, there is a problem that the shape is not easy to implement because the distance according to the scanning distance is very large when the cable is observed.

In other words, a total station and a three-dimensional laser method are mainly used to measure the precision displacement of suspension bridges or cable-stayed bridges. There is a problem that requires the consumption of cost.

On the other hand, as a shape simulation method that can measure the shape of the structure in a short time at a reduced cost instead of the conventional technology that requires expensive precise surveying equipment, Korean Patent Application No. 2007-67929 (Application Date: 2007 July 06, 2013), the invention entitled "Shape Structure System and Method of Suspension Bridge Structure" is disclosed. By analyzing the image of suspension bridge photographed using a digital camera, it simulates the shape of suspension bridge. It is to measure the shape of long bridge accurately in a short time.

4 is a configuration diagram of a shape simulation system for the long bridge cable shape management according to the prior art.

Referring to FIG. 4, a shape simulation system for managing a shape of a long bridge cable according to the related art includes a digital camera 51, a photographing module 52, a template module 53, an analysis module 54, and the like. And an output module 55.

The image captured by controlling the photographing angle of the digital camera 51 in the photographing module 52 is transmitted to the template module 53. The template module 53 sets up sample pixels for analyzing the shape of the structure on each image. The analysis module 54 includes a coordinate setting unit, an inclination angle setting unit, a horizontal correcting unit, and a vertical correcting unit to calculate the coordinates of the sample pixels, and correct the distortion due to image photographing at the calculated coordinates. The output module 55 outputs the coordinates of the corrected sample pixels, and may determine the shape of the photographing target structure through the output sample coordinates.

In the case of a shape simulation system for long bridge cable shape management according to the prior art, it is possible to shape the shape of the cable by moving the digital camera 51 along the cable. Cables of the type used in large suspension bridges are bundles of smaller wires than cables, usually having a diameter of about 0.1 to 0.2 inches (about 4 to 5 mm). The cable is often formed by tying more than 10,000 such wires together, although other cross-sectional shapes may be used, but typically the cable is formed in a circular cross section.

However, the shape simulation system for long bridge cable configuration management according to the prior art shows only the state of the external cladding of the cable, not the individual wires, and the wires inside the cable bundle cannot be represented, so their condition can be confirmed. There is no problem.

The technical problem to be solved by the present invention to solve the above-mentioned problems, the location-based, which can detect the risk factors of cables used in long bridges, such as suspension bridges and cable-stayed bridges, based on the latest position-based system of wireless communication engineering It is to provide a long bridge cable configuration management system using the system (LBS) and its method.

Another technical problem to be achieved by the present invention is the construction of the cable construction elements detected during the construction, common or post-construction based on the location-based system cable construction director, management center, manager terminal or shared bridge driving It is to provide a long bridge cable configuration management system and a method using a location-based system that can be notified in real time.

As a means for achieving the above-described technical problem, the long bridge cable shape management system using a location-based system according to the present invention, in the long bridge cable shape management system for detecting and managing the risk factors of the long bridge cable, the pole At least one location-based system (LBS) sensor installed at a predetermined position according to the shape of the bridge cable and generating cable shape information by measuring tension of each of the long bridge cables; A cable shape information collecting unit collecting the cable shape information from the at least one LBS sensor; A risk factor DB in which an allowable range corresponding to a limit value of tension for each position of the long bridge cable is stored; A cable shape information analysis unit which analyzes the risk of the long bridge cable in real time by comparing the shape information of the cable with an allowable range stored in the risk factor DB; And an analysis information transmission unit for transmitting analysis information analyzed by the cable shape information analysis unit, wherein the at least one LBS sensor is each of location data received from a location-based system for maintenance during construction, in common use, or after construction. It is characterized in that for correcting the error of the long bridge cable shape information based on.

Here, the at least one LBS sensor is characterized in that the at least one LBS sensor receives the position data from the location-based system each comprising at least three or more wireless communication modules to correct the error of the long bridge cable shape information in real time It is done.

Here, the LBS sensor, a location data receiver for receiving location data from the location-based system; Cable sensor for measuring the tension per position from the long bridge cable; And an error correction unit configured to generate cable shape information by correcting an error of position-specific tension measured by the cable sensor based on the received position data.

The risk factor DB may include: cable location information DB, in which cable location information corresponding to cable shape information measured by the at least one LBS sensor is stored; And it may include a cable tension DB is stored in the tension value for each cable position measured in the at least one LBS sensor and monitored in real time.

In this case, the cable tension DB is characterized in that the tension value according to the weather, season, time, and monitored location in real time to be able to predict the risk due to the cable tension is stored.

Here, the analysis information transmission unit may transmit the information analyzed by the cable shape information analysis unit to the management center or the manager terminal in real time.

Here, when it is determined that the long bridge cable is dangerous by the cable shape information analyzer, the analysis information transmitter may generate a short message service (SMS) and send it to a terminal possessed by a bridge driver or a pedestrian.

On the other hand, as another means for achieving the above-described technical problem, the long bridge cable shape management method using a location-based system according to the present invention, the risk factors of the long bridge cable for maintenance during construction, in common or after construction A method for managing the shape of a long bridge cable for detecting and managing the cable, comprising: a) acquiring long bridge cable shape information by operating at least one LBS (Location Based System) sensor installed on a cable of a long bridge for real-time long bridge cable shape management; step; b) correcting the error of the long bridge cable shape information based on the position data received from the position based system; c) collecting the error-corrected long bridge cable shape information from the LBS sensor by wire or wirelessly; d) analyzing the risk of the long bridge cable by comparing the allowable range stored in the risk factor DB and the long bridge cable shape information; And e) notifying the analyzed information to a manager terminal or a management center.

Here, step b) is characterized in that for receiving the position data from the location-based system including at least three or more wireless communication modules, respectively, in real time correction of the error of the long bridge cable shape information.

Here, the risk factor DB of step d) may be stored an allowable range corresponding to the limit value of the tension per position of the long bridge cable.

Here, the risk factor DB stores the tension value according to the real-time monitored position, and the tension data according to the weather, season, time, and is linked with the bridge safety monitoring system to predict the risk due to the cable tension. .

Here, when the analysis information in step d) determines that the long bridge cable is dangerous, step e) may generate a short message service (SMS) and send it to the bridge driver or pedestrian.

According to the present invention, it is possible to efficiently detect risk factors of cables used in long bridges such as suspension bridges or cable-stayed bridges based on the location-based system.

According to the present invention, by providing a real-time notification to the temporary construction manager, management center, manager terminal or public bridge rider during construction of the cable shape element detected on the basis of the location-based system for maintenance during construction, public or post-installation As a result, they can respond quickly to hazards.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In the drawings, parts irrelevant to the description are omitted in order to clearly describe the present invention, and like reference numerals designate like parts throughout the specification.

Throughout the specification, when a part is said to "include" a certain component, it means that it can further include other components, without excluding other components unless specifically stated otherwise. Also, the term "part" or the like, as described in the specification, means a unit for processing at least one function or operation, and may be implemented by hardware, software, or a combination of hardware and software.

First, after briefly explaining the LBS application technology to which the embodiment of the present invention is applied, the principle of a long bridge cable configuration management system using a location-based system according to an embodiment of the present invention will be described.

5 is a view for explaining the LBS application technology to which the embodiment of the present invention is applied.

Referring to FIG. 5, a location-based system (LBS) is typically used to calculate a location of a person or object anytime, anywhere, and to provide various services based on the location-based system. The combination of LBS platform technology and LBS application technology is provided. For example, application technologies related to LBS include location tracking service, location information service or M-Commerce.

The LBS can be classified into three parts, namely, a location determination technology (LDT), a location enabled platform (LEP), and a location application program (LAP).

The main advantage of the LBS is that the wireless Internet users do not need to directly enter an address or region separator while moving to multiple locations, and GPS positioning technology is one of the key element technologies that facilitates access to wireless Internet services. However, satellite-based positioning technologies such as GPS are not the only sub-element technologies used to realize LBS. In the mobile communication network, there is a unique location management mechanism for managing the mobility of the terminal, and there are many non-GPS LBS services based thereon. For example, since GPS does not work well indoors, for example, Bluetooth, ultra-wideband, RFID and the like can be used.

Hereinafter, the principle of the long bridge cable configuration management system using the above-described location-based system will be described.

6 is a view for explaining the principle of the long bridge cable configuration management system using a location-based system according to an embodiment of the present invention.

Referring to FIG. 6, a long bridge cable shape management system using a location-based system according to an embodiment of the present invention receives correction data from a location-based system for maintenance during construction, in common use or after construction, and an LBS sensor. Is installed at a predetermined position according to the shape of the long bridge cable, and by measuring the tension for each position of the long bridge cable to generate the cable shape information. At this time, a plurality of LBS sensors are attached around the shape of the long bridge cable, the plurality of LBS sensors in conjunction with the location-based system to measure the real-time cable position information. That is, information is collected and analyzed through the LBS sensor for each cable, and a risk factor DB, for example, a location information DB and a tension DB are constructed in real time. Here, the risk information DB may be built in the main server for managing the overall bridge cable configuration management system according to an embodiment of the present invention, for example, input by a mobile PDA, a site manager under construction or a bridge manager in public. Can be updated or updated.

Then, by comparing the shape information of the cable and the allowable range stored in the risk factor DB, by analyzing the risk of the long bridge cable for each location of the long bridge cable, it is possible to quickly cope with the risk factor. For example, the analysis results are transmitted to the management center or the manager terminal in real time so that the cable tension can be corrected. In addition, when the cable risk is detected, the risk factor is transmitted by sending an SMS to the bridge rider or pedestrian, or by notifying the manager terminal during construction of the construction manager, the manager terminal of the facility manager, the management center of the maintenance facility, or a public institution. You can prevent it in advance.

7 to 11, a long bridge cable configuration management system using a location-based system according to an embodiment of the present invention and a method thereof will be described in more detail.

7 is a flowchart illustrating a method for managing a long bridge cable shape using a location-based system according to an embodiment of the present invention.

Referring to FIG. 7, a method for managing a shape of a long bridge bridge using a location-based system according to an embodiment of the present invention, first, a long bridge for real-time long bridge cable shape management for maintenance during construction, in use, or after construction By operating at least one LBS (Location Based System) sensor installed in the cable of the long bridge cable shape information is obtained (S110). Here, the LBS sensor refers to a sensor that can correct the error based on the location-based system, wherein the LBS sensor may be a tension sensor for measuring the tension of the cable, but is not limited to this, the vibration or displacement of the cable It may also be a sensor that can be measured.

Next, based on the location-based system to correct the error of the long bridge cable shape information (S120). For example, correction data is received from a location-based system to correct an error of the long bridge cable shape information in real time.

Next, the LBS sensor transmits the error-corrected long bridge cable shape information or implements the cable shape in 3D (S130). For example, a cable shape can be completed through virtual 3D simulation before the original structure is constructed, and this virtual 3D simulation can be used to check whether the cable shape is properly constructed by the operator during construction.

Next, the error-corrected long bridge cable shape information is collected from the LBS sensor by wire or wirelessly (by the cable shape information collecting unit of the long bridge cable shape management system using a location-based system described later).

Next, the risk of the long bridge cable is analyzed by comparing the allowable range stored in the risk factor DB and the error-corrected long bridge cable shape information (S140). At this time, the risk factor DB may be stored an allowable range corresponding to the limit value of the tension for each position of the long bridge cable. In addition, the risk factor DB stores the tension value according to the real-time monitored position, and the tension data according to the weather, season, time, and can be linked with the bridge safety monitoring system to predict the risk due to the cable tension.

Next, the analyzed information is notified to the manager terminal or the management center (S150).

Next, when the analysis information determines that the long bridge cable is dangerous, the SMS may be generated and sent to the bridge driver or pedestrian (S160).

On the other hand, Figure 8 is a block diagram of a long bridge cable configuration management system using a location-based system according to an embodiment of the present invention.

Referring to Figure 8, the long bridge cable shape management system 200 using a location-based system according to an embodiment of the present invention to detect and manage the risk factors of the long bridge cable at least one or more LBS sensor 210, Cable shape information collecting unit 220, cable shape information analysis unit 230, risk factor DB 240 and analysis information transmission unit 250 is included.

At least one LBS sensor 210 is installed at a predetermined position according to the shape of the long bridge cable, and generates cable shape information by measuring the tension for each location of the long bridge cable. The at least one LBS sensor 210 respectively corrects an error of the long bridge cable shape information based on a location-based system, and specifically, receives the location data from the location-based system 300 to receive the long bridge cable shape information. To correct the error in real time. For example, when the LBS sensor 210 is a tension sensor, the measured tension value is converted into a digital signal, and the error is corrected according to the position data received from the location-based system 300.

The cable shape information collecting unit 220 collects the cable shape information from the at least one LBS sensor 210 by wire or wirelessly. Collecting the cable shape information from the LBS sensor 210 in a wired or wireless manner can be easily implemented according to a conventional wired or wireless communication technology, so a detailed description thereof will be omitted.

The risk factor DB 240 includes a cable location information DB 241 and a cable tension DB 242, and stores an allowable range corresponding to the limit value of the tension per position of the long bridge cable. The risk factor DB 240 stores the tension value according to the real-time monitored position, and tension data according to weather, season, and time, and interlocks with the bridge safety monitoring system 700 so as to predict the risk due to the cable tension. Can be.

The cable location information DB 241 stores cable location information corresponding to cable shape information measured by the at least one or more LBS sensors 210.

The cable tension DB 241 is stored in the cable position is measured by the at least one LBS sensor in real time monitoring the tension value, specifically, the cable tension DB 242 to predict the risk of the cable tension Real-time monitored location-specific tension values and tension data according to weather, season and time are stored. That is, since the tension of the cable may vary depending on weather, season, and time, the tension data limit value may be changed in consideration of this.

The cable shape information analysis unit 230 compares the shape information of the cable with the allowable range stored in the risk factor DB 240 and analyzes the risk of the long bridge cable for each location of the long bridge cable. At this time, the shape information of the cable and the allowable range stored in the risk factor DB 240 are preferably digital values so that they can be easily compared with each other.

The analysis information transmitter 250 transmits the analysis information analyzed by the cable shape information analyzer. In addition, the analysis information transmitter 250 may transmit the information analyzed by the cable shape information analyzer to the management center 400 or the manager terminal 500 in real time. In addition, the analysis information transmitter 250 generates a short message service (SMS) when the cable shape information analyzer determines that the long bridge cable is dangerous, the terminal 600 carried by the bridge driver or pedestrian. I can send it out. In this case, the analysis information transmission unit 250 transmits the analysis information because it can be easily implemented according to the conventional wired and wireless communication technology, a detailed description thereof will be omitted.

After all, according to the long bridge cable configuration management system using a location-based system according to an embodiment of the present invention, after detecting the risk factors of cables used in long bridges, such as suspension bridges and cable-stayed bridges efficiently, By notifying the detected risk factors to the management center, the manager terminal and the bridge driver in real time, it is possible to respond quickly to the risk factors.

On the other hand, since long bridges such as cable-stayed bridges and suspension bridges are usually constructed in poor environments, damage to the structure is likely to occur due to excessive displacement of the long bridges due to wind loads and corrosion of the piers by seawater. Most of the long bridges, such as cable-stayed bridges and suspension bridges, use cables as their supporting structures. Cables have no flexural rigidity, so they do not receive compression, but only tension. The method of measuring the tension is a load gauge or an accelerometer. For example, the accelerometer sensor measures the frequency of steel wire or steel rod and converts it to tension. Tension estimates may vary.

9 is a block diagram of an LBS sensor used in a long bridge cable configuration management system using a location-based system according to an embodiment of the present invention.

9, the LBS sensor 210 used in the long bridge cable configuration management system using a location-based system according to an embodiment of the present invention is a position data receiver 211, cable sensor 212 and the error correction unit ( 213), but is not limited to such. As described above, the LBS sensor 210 refers to a sensor capable of correcting an error based on a location-based system. In this case, the LBS sensor 210 may be a tension sensor that measures a tension of a cable. It may be a sensor that can measure vibration or displacement of a cable without being limited thereto.

The location data receiver 211 receives location data from a location based system, for example, three or more wireless communication modules.

The cable sensor 212 measures the tension per position from the long bridge cable. In this case, the cable sensor 212 is preferably a tension sensor, but is not limited thereto. In addition, the position-specific tension is preferably converted to a digital value through an analog-to-digital converter (not shown) so that the error can be corrected subsequently.

The error correction unit 213 generates cable shape information by correcting an error of the tension for each position measured by the cable sensor 212 based on the received correction data.

Therefore, the LBS sensor 210 according to the embodiment of the present invention generates the cable shape information of which the error is corrected based on the location-based system.

Meanwhile, FIG. 10 is a view for explaining that the LBS sensor is installed in the long bridge cable is installed according to an embodiment of the present invention, Figure 11 illustrates the position where the LBS sensor is installed in the long bridge cable according to an embodiment of the present invention It is a figure.

As shown in FIG. 10, at least one LBS sensor 210 according to an embodiment of the present invention is installed at a predetermined position according to the shape of the long bridge cable 120, and the location of the long bridge cable 120. Create cable shape information by measuring star tension.

As shown in FIG. 11, the long bridge 100 according to an embodiment of the present invention is a main tower 110 of steel or reinforced concrete structure, a cable 120 suspended from the main tower 110, a top plate or a girder of the long bridge. 130, a pier 140 supporting the girder 130, a hanger 150 hanging on the cable 120 and leading the tension of the cable to the earth direction and one side of the cable 120 to the ground It is configured to include an anchorage 160 to be fixed.

Referring to FIG. 11, a plurality of LBS sensors 210 are attached around a shape of a long bridge cable 120, and each of the plurality of LBS sensors 210 is a location-based system, for example, a wireless communication module 300a. , 300b, 300c, and 300d receive position data and measure real-time cable position information. That is, information is collected and analyzed through the LBS sensor 210 for each cable, and the location information DB and the tension DB are constructed in real time. Subsequently, the analysis results are transmitted to the cable construction manager, the control center or the manager terminal during construction in real time so that the cable tension can be corrected, or by SMS to the bridge rider or pedestrian when the cable risk is detected. Risks can be prevented in advance.

12 is a view for explaining the principle of receiving location data from the LBS sensor LBS according to an embodiment of the present invention.

Referring to FIG. 12, the LBS for transmitting location data to the LBS sensor according to an embodiment of the present invention may be implemented by, for example, the wireless communication modules 300a, 300c, and 300c installed in a fixed main column part. .

Specifically, based on at least three or more distances (D1, D2, D3) between at least three or more short range wireless communication modules (300a, 300c, 300c) and the LBS sensor 210 in the specific region The position of the LBS sensor 210 is determined. Preferably, the position of the LBS sensor 210 is determined from the three nearest distances. Herein, the wireless communication modules 300a, 300b, and 300c may include at least one of an infrared data association (IrDA), Bluetooth (Blue Tooth), Zigbee, and UWB (Ultra-Wideband).

The foregoing description of the present invention is intended for illustration, and those skilled in the art can understand that the present invention can be easily modified in other specific forms without changing the technical spirit or essential features of the present invention. There will be. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive. For example, each component described as a single type may be implemented in a distributed manner, and similarly, components described as distributed may be implemented in a combined form.

The scope of the present invention is shown by the following claims rather than the above description, and all changes or modifications derived from the meaning and scope of the claims and their equivalents should be construed as being included in the scope of the present invention. do.

1 is a view for schematically explaining a long bridge cable shape management method using a GPS survey according to the prior art.

FIG. 2 is a diagram schematically illustrating a method for managing a long bridge cable shape using a total station (TS) survey according to the related art.

3 is a view for schematically explaining a long bridge cable shape management method using a measurement sensor according to the prior art.

4 is a configuration diagram of a shape simulation system for the long bridge cable shape management according to the prior art.

5 is a view for explaining the LBS application technology to which the embodiment of the present invention is applied.

6 is a view for explaining the principle of the long bridge cable configuration management system using a location-based system according to an embodiment of the present invention.

7 is a flowchart illustrating a method for managing a long bridge cable shape using a location-based system according to an embodiment of the present invention.

8 is a configuration diagram of a long bridge cable configuration management system using a location-based system according to an embodiment of the present invention.

9 is a block diagram of an LBS sensor used in a long bridge cable configuration management system using a location-based system according to an embodiment of the present invention.

10 is a view for explaining that the installed on the long bridge cable is installed LBS sensor according to an embodiment of the present invention.

FIG. 11 is a diagram illustrating various positions in which an LBS sensor is installed in a long bridge cable according to an exemplary embodiment of the present invention.

12 is a view for explaining the principle of receiving location data from the LBS sensor LBS according to an embodiment of the present invention.

<Brief Description of Drawings>

100: long bridge (suspension bridge / cable-stayed bridge)

110: pylon 120: long bridge cable

130: girder 140: pier

150: hanger 160: anchorage

200: cable configuration management system

210: LBS sensor 211: location data receiving unit

212: cable sensor 213: error correction unit

220: cable shape information collection unit 230: cable shape information analysis unit

240: risk factor DB 241: cable location information DB

242: cable tension DB 250: analysis information transmission unit

300: LBS 400: Management Center

500: manager terminal 600: rider / pedestrian terminal

700: bridge safety monitoring system

Claims (12)

In the long bridge cable configuration management system that detects and manages risk factors of the bridge cable, At least one location-based system (LBS) sensor installed at a predetermined position according to the shape of the long bridge cable and measuring cable-specific tension of the long bridge cable to generate cable shape information; A cable shape information collecting unit collecting the cable shape information from the at least one LBS sensor; A risk factor DB in which an allowable range corresponding to a limit value of tension for each position of the long bridge cable is stored; A cable shape information analysis unit which analyzes the risk of the long bridge cable in real time by comparing the shape information of the cable with an allowable range stored in the risk factor DB; And Analysis information transmission unit for transmitting the analysis information analyzed by the cable shape information analysis unit Including; The at least one LBS sensor is a location-based system, characterized in that for correcting the error of the long bridge cable shape information on the basis of the position data received from the location-based system for maintenance during construction, common or post-installation, respectively Long bridge cable configuration management system. The method of claim 1, The at least one LBS sensor is a long bridge using a location-based system, characterized in that for receiving the position data from a location-based system including at least three or more wireless communication modules to correct the error of the long bridge cable shape information in real time Cable Configuration Management System. The method of claim 1, wherein the LBS sensor, A location data receiver for receiving location data from the location based system; Cable sensor for measuring the tension per position from the long bridge cable; And Error correction unit for generating cable shape information by correcting the error of the position-specific tension measured by the cable sensor based on the received position data Long bridge cable configuration management system using a location-based system including a. The method of claim 1, wherein the risk factor DB, Cable location information DB storing cable location information corresponding to cable shape information measured by the at least one LBS sensor; And Cable tension DB that stores the tension value for each cable position measured in the at least one LBS sensor and monitored in real time Long bridge cable configuration management system using a location-based system including a. 5. The method of claim 4, The cable tension DB is a long bridge cable shape management system using a location-based system, characterized in that the tension value according to the weather, season, time, and monitored location in real time to predict the risk due to the cable tension . The method of claim 1, The analysis information transmission unit, the long bridge cable shape management system using a location-based system, characterized in that for transmitting in real time the information analyzed by the cable shape information analysis unit to the management center or the manager terminal. The method of claim 1, Wherein the analysis information transmission unit, if the cable shape information analysis unit is determined that the long bridge cable is dangerous, generating a Short Message Service (SMS), characterized in that for sending to the terminal owned by the bridge driver or pedestrian Longitudinal Bridge Cable Configuration Management System Based on Base System. In the long bridge cable configuration management method that detects and manages the risk factors of the bridge cable for maintenance during construction, in common or after construction, a) obtaining long bridge cable shape information by operating at least one LBS (Location Based System) sensor installed on the cable of the long bridge for real-time long bridge cable shape management; b) correcting the error of the long bridge cable shape information based on the position data received from the position based system; c) collecting the error-corrected long bridge cable shape information from the LBS sensor by wire or wirelessly; d) analyzing the risk of the long bridge cable by comparing the allowable range stored in the risk factor DB and the error-corrected long bridge cable shape information; And e) notifying the analyzed information to a manager terminal or a management center; Long bridge cable configuration management method using a location-based system comprising a. The method of claim 8, The step b) is a long bridge cable shape using a location-based system, characterized in that for receiving the position data from a location-based system including at least three wireless communication modules, respectively, to correct the error of the long bridge cable shape information How to manage. The method of claim 8, The risk factor DB of step d) is a long bridge cable configuration management method using a location-based system, characterized in that the tolerance range corresponding to the limit value of the tension for each location of the long bridge cable. The method of claim 10, The risk factor DB stores the tension value for each location monitored in real time, and the tension data according to weather, season, and time, and is based on the location of the bridge safety monitoring system, which can be linked with the bridge safety monitoring system to predict the risk due to the cable tension. Long bridge cable shape management method using system. The method of claim 8, If the analysis information in step d) determines that the long bridge cable is dangerous, the step e) generates a short message service (SMS) and sends it to the bridge driver or pedestrian using the location-based system. Long bridge cable configuration management method.

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