KR101122185B1 - System and method of managing underground facilities using the information identification means - Google Patents

Abstract

PURPOSE: An underground facilities managing system using an information recognition unit and a method thereof are provided to install a ground indicator at a position on the ground and an underground indicator underground where an underground facility is installed, thereby detecting location movement of the underground facility when a natural disaster occurs. CONSTITUTION: A plurality of ground indicators includes information of a underground facility(200). A plurality of underground indicators is buried underground with the underground facility. A user terminal(30) acquires information from a plurality of ground indicators and a plurality of underground indicators. The user terminal identifies location information of the underground facility. A communication network(40) provides the communication between the user terminal and a location information server(50). The location information server decodes the information included in a plurality of ground indicators and underground indicators.

Description

System and method of managing underground facilities using the information identification means

The present invention relates to an underground facility management system and a control method thereof, and more particularly, includes a ground indicator and information on an underground facility installed on the ground, including information on an underground facility, and embedded in the basement with the underground facility. The underground maps are stored in information recognition means such as barcodes, QR codes, magnetic markers, RFID tags, Wi-Fi devices, etc., and read by the user terminal. Underground facilities management using information recognition means that can prevent the accident of large-scale accidents that do not know the changed information and double work to check the underground facilities at each construction because the property information of the facilities is shared. A system and method thereof are provided.

Natural disasters such as gas pipe explosion, city gas explosion, oil pipe rupture, recovery, and restoration work take into consideration the stability of special underground facilities buried underground such as water, sewage, gas, power, communication, heating, oil pipes, etc. Together, ongoing maintenance is becoming important.

However, since underground facilities are various in type, they are not uniformly buried, and they are buried underground in a complex form. It is difficult to do so, and unexpected accidents can cause great loss of human and material.

In order to prevent accidents occurring in underground facilities, a management system that can systematically and comprehensively manage underground facilities is required.

In order to manage underground facilities, surveying is required to obtain the topography, longitudinal and cross-sectional views, and underground facility drawings where the underground facilities are located. In particular, for the design of large-scale accidents and other underground facilities by underground facilities, information related to underground facilities must be accurately represented on the topographic map.

Underground facilities considered in the design of underground facilities include water and sewage, Korea Electric Power Line, Korea Telecom Line, and city gas pipeline. Also, the properties of underground facilities to be recorded on the topographic map are the material of the pipe, the length of the pipe, the diameter of the pipe, the number of pipes, the depth of the pipe, and the location of the pipe.

By constructing GIS using the exact location and information of underground facilities, large accidents can be prevented during construction of underground facilities, and in the event of an accident, the scope and location of the accident can be grasped so that more efficient management can be achieved.

Water supply management, sewage management, pipe network analysis, water and sewage drawing management and output, water and sewage facility statistics, distance and area measurement function / buffer zone analysis through digital mapping and underground facility management system for underground facility management Development of water and sewage maintenance systems, etc., is being promoted.

In addition, it is not known whether the design drawings of the underground facilities and the actual construction location and specifications match. Therefore, it is impossible to check until the location is directly parsed.

There is a great demand for a system that can easily enter and verify this information, but to date it is not well supported. In addition, if the system that can manage this is combined with information such as GPS, the accuracy and scalability of the information can be greatly increased. Therefore, there is an urgent need for a comprehensive management system for underground facilities such as water and sewage, gas and oil pipelines. It is required.

An object of the present invention is to provide an underground facility management system and a method using the information recognition means capable of effective and active management of underground facilities by building a system capable of integrated management of underground facilities.

In addition, an object of the present invention is to provide information recognition means for detecting the movement of the underground facilities during natural disasters such as earthquakes, landslides, floods by installing ground indicators on the ground where underground facilities are embedded It is to provide an underground facility management system and method used.

In addition, an object of the present invention to obtain location information and attribute information by using information recognition means such as a barcode or QR code installed in the conduit product of underground facilities, and stored in a database along with the construction information when construction, according to the construction It is to provide an underground facility management system and method using information recognition means that can be updated and confirmed in real time to change of information generated.

It is also an object of the present invention to provide a total water and sewage conduit management system and method by calculating the coordinates using a wireless LAN that can calculate the exact position of the location where water and sewage conduits are installed by a method of measuring relative coordinates using a wireless LAN. .

In order to achieve the above object, the present invention, a plurality of ground indicators are installed on the ground of a plurality of points, including the base information of the plurality of points, location information and information of underground facilities buried nearby; A plurality of underground indicators including information of underground facilities included in the plurality of ground indicators and buried underground with the underground facilities; A user terminal acquiring information from the plurality of ground indicators and a plurality of underground indicators to identify the base information, the location information, and the location information of the underground facilities buried nearby; A communication network providing communication between the user terminal and the location information server; Receiving the encryption code included in the plurality of ground indicators and ground indicators in the user terminal through the communication network configured to decode the information contained in the plurality of ground indicators and ground indicators and send back to the user terminal do.

According to an embodiment of the present invention, a plurality of ground indicators and underground indicators measure points around underground facilities when constructing underground facilities, and store base information, location information, topographic information, and attribute information of the underground facilities. Code or an electronic tag such as NFC-based RFID, a wireless LAN-based RTLS tag, it characterized in that the Wi-Fi device.

According to an embodiment of the present invention, the ground information, the ground information, the ground information, the location information, the topographic information, and the attribute information of the underground facilities are encrypted and stored so that they cannot be known by general means.

According to an embodiment of the present invention, the user terminal is a general telephone, a smart phone, a PDA, a tablet PC, and receives a code or information including information displayed on the plurality of ground indicators and a plurality of ground indicators and the plurality of ground indicators. It is characterized by identifying the base information, location information and information of underground facilities buried nearby, and providing the location information server through a communication network.

According to one embodiment of the present invention, a plurality of underground tables are displayed on the underground facilities themselves or when the underground facilities are constructed, they are attached to the underground facilities or are buried underground together around the underground facilities.

The underground facility management system according to the present invention comprises an integrated management server for generating an information recognition code using a serial number of a product related to the conduit of the underground facility, and storing and transmitting the product related information mapped to the information recognition code; An information recognition code printing terminal for printing the information recognition code in a form attachable to the product; Recognizing the information recognition code from the product with the information identification code, and receiving and outputting the product related information mapped to the information recognition code from the integrated management server, the location information of the product received via GPS satellites A user terminal generating time information and transmitting the same to the integrated management server; An authentication server for authenticating authority of the user terminal when there is a request for information related to the conduit of underground facilities from the user terminal to the integrated management server; And maps and stores the information recognition code and the related information of the corresponding product, provides the stored information according to the information request of the corresponding product through the user terminal, and provides location information and time information of the product from the integrated management server. If received, characterized in that it comprises a database server for updating and storing the product related information.

According to an embodiment of the present invention, the apparatus further includes at least three radio signal transmitters installed in an area in which the product is constructed, wherein the location information is based on one of the at least three radio signal transmitters. And measuring and calculating three-dimensional coordinates of the point where each device is installed, determining a relative coordinate value of the construction point based on the calculated three-dimensional coordinates, and the absolute coordinates of the wireless signal transmission apparatus as the reference and the It is characterized in that it is generated through the step of calculating the actual absolute coordinates at the time of construction by the calculated relative coordinate value.

According to an embodiment of the present invention, the object to which the information identification code is attached is characterized in that any one or more selected from pipes, pipe-related parts, manholes, blueprints, and main points.

According to an embodiment of the present invention, the information recognition code is any one selected from a bar code, a QR code, a smart tag, a data matrix, and a color straw code.

In the method for managing underground facilities according to the present invention, a method for comprehensively managing conduits using an integrated management server, a user terminal, an information recognition code print terminal, and a database server, wherein the identification information of products related to water and sewage conduits is integrated in the integrated management server. A first step of generating an information recognition code, wherein product related information related to water and sewage conduit is mapped with the information recognition code and is present in a database server; A second step of printing the generated information recognition code in an attachable form by the information recognition code printing terminal, wherein the printed information recognition code is attached to the water and sewage conduit; A third step of recognizing an information recognition code attached to the water and sewage conduit through the user terminal; A fourth step of generating location information and time information of the product from the user terminal and transmitting the location information to the integrated management server; And receiving, by the database server, location information and time information of the product from the integrated management server, and updating the product related information by reflecting the received time information and location information, wherein the integrated management server After the third step or the fifth step, the product-related information is transmitted to the user terminal, characterized in that to transmit the information after authenticating the authority of the user terminal.

According to an embodiment of the present invention, in the fourth step, the location information is based on one of at least three wireless signal transmission apparatuses installed in the area where the product is constructed, Step 4-1 of surveying and calculating three-dimensional coordinates; Step 4-2 of determining a relative coordinate value of a construction point based on the calculated three-dimensional coordinates; and Absolute coordinates of the wireless signal transmitter as the reference and the It is characterized in that the generated through the third step to calculate the actual absolute coordinates at the time of construction by using the calculated relative coordinate value.

According to the present invention can be used as a measurement equipment of the underground facilities by reading the code attached to the underground facilities as non-dedicated equipment or receiving a signal containing information from the electronic tag, Wi-Fi device, and the like.

In addition, GPS location information and time information at the time of reading the identification code during construction are stored in association with the product information, so that the construction information can be automatically input and managed, and immediately confirmed whether the construction information matches the design drawing. In addition, it is possible to easily input and maintain the construction information, topographical information, and attribute information of accurate underground facilities, and exchange the updated data on the underground facilities that each institution is in charge of via the Internet or wireless LAN. By sharing or sharing, it is possible to manage the underground facilities more effectively, and can be easily used for future maintenance.

In addition, by granting access to the database where integrated management information on water and sewage conduits of underground facilities is stored, it is possible to control the amount and level of information disclosure according to the authority. In addition, by calculating the relative coordinates using the wireless LAN, and obtain the absolute coordinate information through this, the advantage that the high-precision location information can be used for the installation and management of water and sewage conduit of underground facilities. have.

1 is a block diagram showing the configuration of an underground facility management system using information recognition means according to the present invention;
2 is an embodiment in which the ground indicator and the ground indicator are installed at a point where underground facilities are buried according to the present invention;
Figure 3 is a block diagram showing the configuration of the underground facility management system using the information recognition means of another embodiment according to the present invention,
4 is a flow showing an underground facility management procedure using information recognition means according to an embodiment of the present invention.
5 is a block diagram showing a detailed configuration of a service server according to another embodiment of the present invention;
6 is a view showing an example of precision survey using a wireless LAN according to an embodiment of the present invention;
7 is a flowchart illustrating a procedure of calculating precision coordinates using a WLAN according to an embodiment of the present invention.

DETAILED DESCRIPTION Hereinafter, a detailed description of a preferred embodiment of the present invention will be described with reference to the accompanying drawings. In the following description, detailed descriptions of well-known functions or configurations will be omitted when it is determined that the detailed descriptions of the known functions or configurations may unnecessarily obscure the subject matter of the present invention.

1 is a block diagram showing the configuration of an underground facility management system using information recognition means according to the present invention.

The underground facility management system using the information recognition means according to the present invention is installed on the ground of a plurality of points where the movement of the seat rarely occurs, and the base information, the location information of the multiple points and the information of the underground facilities 200 buried nearby. A plurality of ground indicators (10-1, 10-2, ..., 10-n), including; A plurality of basements including information of the underground facilities 200 included in the plurality of ground indicators (10-1, 10-2, ..., 10-n) and buried underground with the underground facilities (200) Indicators 20-1, 20-2, ..., 20-n; Information is obtained from the plurality of ground indicators 10-1, 10-2, ..., 10-n and the plurality of underground indicators 20-1, 20-2, ..., 20-n. A user terminal 30 which grasps the base information, the location information, and the location information of the underground facility 200 buried in the vicinity of a point where a plurality of ground indicators and underground signs are installed; A communication network 40 providing communication between the user terminal 30 and the location information server 50; A plurality of ground indicators (10-1, 10-2, ... 10-n) and underground indicators 20-1, 20-2, ..., in the user terminal 30 through the communication network 40 20-n) receives the encryption code included in the plurality of ground indicators (10-1, 10-2, ... 10-n) and underground indicators (20-1, 20-2, ..., 20 -n) is composed of a location information server 50 that decrypts the information contained in the (n) and transmits back to the user terminal (30).

Unexplained code 60 is a server of the National Geographic Information Institute, and provides geographic information of the area requested by the location information server 50. The signs of the ground indicators and underground indicators shall be marked using the representative numbers 10 and 20, unless otherwise specified.

A plurality of ground indicators (10-1, 10-2, ... 10-n) according to the present invention measures the points around the underground facilities when constructing the underground facilities 200, the base information, location information, Code including topographic information and attribute information of the underground facilities (for example, barcode, two-dimensional code including QR code, etc.) or electronic tags such as NFC-based RFID, wireless LAN-based RTLS (Real Time Location System, A system for tracking the location of things in real time), a Wi-Fi device, and the like.

At this time, the ground information (10-1, 10-2, ... 10-n) and the ground information (20-1, 20-2, ..., 20-n) measured the ground information, location information, terrain Information and attribute information of the underground facilities are encrypted and stored so that they cannot be known by general means.

In addition, the code (for example, a bar code, a two-dimensional code including a QR code, etc.) according to the present invention can be produced by attaching the printed code or printed on the conduit product at the time of production of the conduit product, which is a kind of the underground facility 200. have.

Therefore, the user reads the code according to the present invention to the user terminal 30 (eg, smart phone, tablet PC, etc.) he is using, the conduit product of the underground facility 200 through the Internet or a wireless LAN. The base information, location information, topographical information and the attribute information of the underground facilities can be easily accessed by accessing the homepage related to the underground facilities 200, so that the information of the underground facilities 200 is shared and the underground facilities are surveyed every time they are constructed. It is the cheapest in terms of economics because it can prevent large accidents caused by construction without knowing work and changed information.

Means for recognizing all conduit products to date have to generate a special function (frequency generation, or magnetic force generation) in terms of cost is considerably more expensive than the code method according to the present invention, the device is complicated and can cause a failure.

Therefore, when buried underground, lifespan is shortened or deteriorated due to flooding, traits are changed, and there is a possibility of failure. Code method according to the present invention is the printing method is the cheapest and the longest use, it is semi-permanent because no failure occurs.

The user terminal 30 according to the present invention may be a widely used portable terminal such as a general telephone, a smart phone, a PDA, a tablet PC, and the plurality of ground indicators 10-1, 10-2, ... n) and codes containing information shown in a number of underground tables (20-1, 20-2, ..., 20-n) (e.g. QR codes, etc.) or electronic tags such as NFC-based RFID, WLAN-based Receive information from the RTLS tag, Wi-Fi device, etc. of the plurality of ground indicators (10-1, 10-2, ... 10-n) and a plurality of underground indicators (20-1, 20-2, ..., 20-n) grasps the base information, the location information and the information of the underground facilities 200 buried nearby, and provides the location information server 50 through the communication network 40.

2 illustrates an embodiment in which ground indicators and underground indicators are installed at a point where underground facilities are buried by the present invention.

According to the present invention, the ground indicator 10 may be used at almost any point installed on the ground where the underground facility 200 is buried, and as shown, a large building 21, a stone fixing indicator 12, and a traffic sign 13 ), QR codes 12a, 13a, 14a, 21a, 22a for measuring the position information of the traffic light 14, the index pond 22 installed as a survey reference point, and the public office building 23, and displaying the measured information. 23a) is displayed on the ground indicator 10 according to the present invention in a place where the movement is prominent and less visible.

Many of the underground tables 20-1, 20-2, ..., 20-n according to the present invention are displayed on the underground facilities 200 (eg, conduits, etc.) or construct the underground facilities 200. When attached to the underground facilities 200 or may be buried underground together around the underground facilities.

In addition, the plurality of underground tables 20-1, 20-2,..., 20-n may be an electronic tag such as NFC-based RFID, a underground indicator including a wireless LAN-based RTLS tag, a Wi-Fi device, or the like. .

Here, in the case of the underground indicator, a part such as an antenna is exposed to some ground, and a part for fixing such as a body including a tag may be fixed by being embedded in the ground. As for the underground indicator including the electronic tag, the underground indicator disclosed in Korean Patent Publication No. 10-2007-0078826 is representative.

The plurality of underground tables 20-1, 20-2,..., 20-n are codes (eg, barcodes, two-dimensional codes including QR codes, etc.) containing information of the underground facility 200. Electronic tags such as NFC-based RFID, RTLS tags based on WLAN, frequency generators such as Wi-Fi devices, and the like.

Many underground tables (20-1, 20-2, ..., 20-n) are connected in a straight line in the usual case and when the manhole is well displayed, two-dimensional bar code method is used. In places where the inflection point is created or bent but not enough to be marked on the manhole or on the ground, install a signal generator, a blue pitch transmitter, or an NFC transmitter of a transmitter that generates WIFI as a frequency generator.

In addition, by attaching a two-dimensional bar code on the ground and a frequency generator (Wi-Fi), Bluetooth device, NFC device, etc. in the same position in the basement, for example, when the earthquake occurs, the underground table 20 is moved to the left, If the ground indicator 10 attached to the ground is moved to the right of the two-dimensional bar code, by looking at the two deviations it is possible to detect how the ground and underground moved separately, it is possible to detect the movement of underground facilities.

The base information and the location information included in the measured ground indicators (10-1, 10-2, ... 10-n) and underground signs (20-1, 20-2, ..., 20-n); The attribute information of the underground facilities is encrypted and stored so that it cannot be known by general means.

Here, electronic tags such as NFC-based RFID, RTLS tags based on wireless LAN, frequency generators (Wi-Fi), Bluetooth devices, etc., are designed to transmit signals only when signals are input from the outside, so they can be used without a power source or with a battery. This can be used for more than four years or semi-permanent.

All other measurement methods described up to now have been detected (dedicated magnetic marker detection, RFID detection, frequency detection) using dedicated equipment, but the user terminal 30, 110 according to the present invention is a general wireless communication device capable of wireless communication. (E.g. smartphones and tablet PCs) can be used, and cords attached to pipe conduits with general equipment (such as smartphones and tablet PCs (e.g. iPads) owned by the general public), not dedicated equipment (For example, a two-dimensional code including a barcode, a QR code, etc.) or a signal including information from an electronic tag, a Wi-Fi device, etc. can be used as a measurement device of the conduit.

3 is a block diagram showing the configuration of an underground facility management system using information recognition means according to another embodiment of the present invention.

Referring to FIG. 3, the conduit management system according to the present invention includes a service server 100, a user terminal 110, a network 120, an administrator terminal 130, a code identification object 140, and an information recognition means 150. ) And the like. The service server 100 includes an integrated management server 101, an authentication server 102, a database server 103, and the like.

Here, the information recognition means 150 is a code (for example, a bar code, a two-dimensional code including a QR code, etc.) including information of an underground facility, an electronic tag such as an NFC-based RFID, a wireless LAN-based RTLS (Real Time). Location System) tag, Wi-Fi frequency generator, and the like.

First, the code identification object 140 (eg, conduit) stores the serial number and product information, etc., of the product given in the production of the product in the database server 103, and the integrated management server 101 stores the stored information and the basement. Generate a code (for example, a bar code, a two-dimensional code including a QR code, etc.) containing the information of the facility to use as information recognition means 150 or an electronic tag such as NFC-based RFID, RTLS based on wireless LAN ( Real Time Location System) tag, the Wi-Fi frequency generator can be used as information recognition means 150 for storing information of underground facilities.

In addition, a combination of the code and an electronic tag such as NFC-based RFID, a wireless LAN-based RTLS tag, and a WiFi frequency generator may be used together.

The generated information recognition means 150 is constructed by being installed in the vicinity of the code identification object 140, for example, printed or attached to conduit products or when embedding conduit products. At this time, the information of the code identification target included in the information recognition means 150 attached or buried together, as well as pipes and corresponding parts required for the underground facilities 200 (eg, conduits, etc.), manholes, blueprints, It can be a major point.

On the other hand, the contractor using the user terminal 30 (for example, smart phone 110 or a dedicated terminal, etc.) in the code identification object 140 (for example, conduit, etc.) to which the information recognition means 150 is attached. Information is read from the information recognizing means 150.

When the user terminal 30 reads information from the information recognition means 150, for example, a QR code, an electronic tag such as an NFC-based RFID, a wireless LAN-based RTLS tag, a Wi-Fi frequency generator, the corresponding information (QR). Code, signals received from the electronic tag, etc.), and the base information, location information and topographic information and attribute information of the underground facilities (pipe material, pipe length, pipe diameter, pipe Number, depth of pipe, position of pipe, etc. ) on the user terminal 30, or by requesting the corresponding information to the integrated management server 101 through the network 120 by the URL address linked with the corresponding link The homepage of the URL can be displayed.

In response to the request, the integrated management server 101 checks the URL address, etc., reads the mapped information from the database server 103 and provides the mapped information to the user terminal 30 or the smartphone 110.

At this time, the provided information is the base information, location information of the underground facilities to be identified code attached to the corresponding information recognition means 150, and various pre-information information regarding the topographic information and attribute information of the underground facilities, such as pipes, etc. To include them.

For example, the information provided may include terrain information and attribute information (pipe material, pipe length, pipe diameter, number of pipes, pipe depth, pipe position, etc.), type of product, use purpose, pipe pipe direction, and the like. , Construction time, location of conduit facilities, input party information, etc.

On the other hand, when the installer constructs the product, when the information is read from the information recognition means 150 attached to the product, GPS location information and time information, etc. are automatically linked to the product information as described above. It may be displayed on the terminal 30 and stored in the database server 103 of the service server 100.

That is, at the time of reading the information, the user terminal 30 (for example, the smartphone 110, the tablet PC, etc.) receives the location information from the GPS satellite and scans the received location information and time information. The information is transmitted to the integrated management server 101 together with the product information, and the integrated management server 101 updates the code identification object 140, for example, the information of the conduit product, to the database server 103. Save it.

In this way, it is possible to easily input and maintain the correct construction information, topographic information, and property information of the underground facilities, and exchange the updated data on the underground facilities in charge of each organization through the Internet or wireless LAN. By sharing or sharing, it is possible to manage the underground facilities more effectively, and can be easily used for future maintenance.

4 is a flowchart showing a conduit comprehensive management procedure using the information recognition means according to an embodiment of the present invention.

Referring to FIG. 4, first, the integrated management server 101 displays information related to conduit product information using a code identification object, for example, a product serial number of the conduit product 140 (eg, code, QR). Code, electronic tag, etc.) (S201, S202). The generated product related information (eg, code, QR code, electronic tag, etc.) is stored in a database (S203).

In this case, a code (for example, a barcode, a two-dimensional code including a QR code, an electronic tag, etc.) including the generated product-related information is generated and used as the information recognition means 150 or an electronic such as NFC-based RFID. Tag, a wireless LAN-based RTLS tag, a frequency generator, and the like are used as information recognition means 150.

The means for displaying the QR code by outputting the generated product-related information as a QR code (for example, a tape, etc.) is attached to the corresponding product (for example, conduit, etc.), or directly printed on the conduit product (S204). As a result, comprehensive management of the product is performed.

The user terminal 30 or the manager terminal 110 executes a dedicated application (S205) at the time of construction, and scans a code (for example, a two-dimensional code including a barcode, a QR code, etc.) from the corresponding product 140 ( S206) to obtain product-related information or to receive a product-related information by receiving a signal from an electronic tag such as RFID attached to the product 140, a wireless LAN-based RTLS tag, a frequency generator, and the like.

In the user terminal 30 or the manager terminal 110, the product related information (S206) thus obtained is interpreted by a dedicated application (S208), and the information of the corresponding product is output on a display or printed matter, or the detailed information of the corresponding product. To request the information related to the product to the stored URL (S209).

In this case, as described above, when implemented by a dedicated terminal for the implementation of the present invention rather than a general smart phone, it is not processed by the dedicated application, but an optimized web service or a program that can be used in the dedicated terminal. Or similar means.

The integrated management server 101 performs user authentication for the user according to the request for information in step S209 (S210), and if the user's authority is authorized, the database server 103 provides information about the corresponding product. Read (S211) and transmits to the user's manager terminal 110 or the user terminal (30).

In this case, as described above, according to the embodiment of the present invention, construction-related information (for example, location information and time information on GPS, terrain information, and attribute information (pipe material, pipe length, pipe diameter, pipe number, pipe) Depth, the position of the pipe, etc.)) is automatically generated (S213), and the information automatically added and modified for the product (S214) is transmitted to the integrated management server (101). The integrated management server 101 stores the received additional information and construction related information in a database (S216).

5 is a block diagram showing a detailed configuration of a service server according to another embodiment of the present invention.

Referring to FIG. 5, the integrated management server 101 includes a product recognition information generation unit 311, a product recognition information management unit 312, an electronic map mapping unit 313, an information input unit 314, and an authentication processing unit 315. Can be configured.

In addition, the database server 103 is composed of a database such as QR code information 321, product information 322, shipping information 323, sales information 324, design information 325 and construction information 326, etc. Can be.

Here, the construction information database 326 includes construction-related information (e.g., location information and time information on GPS, terrain information and attribute information (pipe material, pipe length, pipe diameter, number of pipes, pipe depth, pipe depth). Location, etc.).

If another facility is surveyed when another facility is constructed in the area where the underground facility is constructed, it is very inefficient to repeat the same task twice. When the underground facility is constructed, the location and attributes of the underground facilities are changed. It is not possible for other contractors to know the change, which is the main cause of major accidents.

In order to prevent such inefficiency and major accidents, the construction information database 326 is provided to the user terminal 30 through a network.

The product recognition information generation unit 311 may use a code (eg, a barcode, a two-dimensional code including a QR code, or the like) including product identification information using a serial number of each product, or an electronic device such as an NFC-based RFID. Performs a function to generate product identification information stored in a tag, a wireless LAN-based RTLS tag, and a frequency generator.

The product recognition information management unit 312 stores and updates various product recognition information (eg, QR code, product recognition information stored in an electronic tag, etc.) of a product mapped to the corresponding product recognition information (eg, QR code). It performs the function.

The electronic map mapping unit 313, when the conduit product with the corresponding product recognition information (for example, QR code, etc.) is installed and installed, GIS (location information, terrain information and attribute information, etc.) It connects to the Geographic Information System (Geographic Information System) to map and display the map.

The information input unit 314 receives a product-related information, construction-related information, delivery-related information, sales-related information, etc., which are input through the manager terminal 130 or the user terminal 30, for example, a smartphone, and the like, using a database server ( 103) to save.

The authentication processing unit 315 stores product identification information (eg, QR code, electronic tag such as NFC based RFID, RTLS tag based on wireless LAN, frequency generator), etc. through the user terminal 30 (eg, smartphone). When the data of the corresponding product is requested by reading the information signal), the authentication server 102 performs a function of processing user authentication.

6 is a diagram illustrating an example of precision survey using a wireless LAN according to an embodiment of the present invention.

Referring to FIG. 6, when four WLAN devices are installed within a construction range, the three-dimensional coordinates between the devices may be measured and calculated. For example, when the reference point of the device 1 is set to (0,0,0), the relative coordinates of the device 2, the device 3, and the device 4 may be measured. That is, relative coordinates are measured as (0, 100, 10), device 3 (100, 35, 20), and device 4 (120, 95, 0). Accordingly, the relative coordinates of the worker can be calculated as (64, 47, 2).

In this way, absolute coordinates can be calculated from the measured relative coordinates to provide accurate position information. In more detail, a database table corresponding to the serial number of the product is used to determine the absolute coordinates of the construction through the absolute coordinates (latitude and longitude) of the reference point, the measured direction and distance values between the devices, and the relative coordinates previously measured. Store in

When you request information from a database through a specific code, product serial number, or location information, you provide absolute and relative coordinate values along with corresponding values. At this time, by providing the precise absolute coordinate value determined through the above-described method to display the current accurate position information and the relative position information of all the products installed near the location.

Hereinafter, with reference to FIG. 7, a high-precision position measuring method required for accurate underground construction and management according to an embodiment of the present invention will be described.

7 is a flowchart illustrating a procedure of calculating precision coordinates using a WLAN according to an embodiment of the present invention.

Referring to FIG. 7, first, a plurality of wireless signal transmitters (or wireless LANs) are installed in a space within a construction range (S401), and then relative 3D coordinates of each point are calculated based on one point (S402). Then, the relative coordinate value of the position at the time of construction is determined by the calculated value (S403). At this time, by calculating the actual absolute coordinates at the time of construction with the reference point as the absolute coordinates (S404), it is possible to store accurate position information about the position at the time of construction in the database (S405).

In more detail, as described above, in the comprehensive management of underground facilities (eg, water and sewage conduits), due to the technical limitations of GPS, the realization of the error range of GPS and the use of height (or Z coordinate in three-dimensional space) The disadvantage of being impossible still exists.

In order to solve this problem, an apparatus for transmitting a wireless signal that can be used as a reference for location recognition in a wireless portable terminal is provided.

Then, after installing each device in the appropriate space within the construction range, and calculate the relative three-dimensional coordinates of each point on the basis of one point to determine the relative coordinate value at the time of construction. For this purpose it is desirable that the construction range is within the signal region of the device.

In this case, theoretically, three-dimensional coordinate calculation is possible with three reference points, but in practice, at least four devices are required to reduce errors caused by time differences in radio wave transmission. That is, at least four signals must be caught at each point.

On the other hand, in the embodiment of the present invention has been described with respect to specific embodiments, various modifications are possible without departing from the scope of the invention. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be defined not only by the appended claims, but also by the equivalents of the claims.

10: Ground Indicator 20: Ground Indicator
30: user terminal 40: communication network
50; Location Information Server 60: National Geographic Information Service Server
100: service server 101: integrated management server
102: authentication server 103: database server
110: smartphone 120: network
130: manager terminal 140: code identification target
150: information recognition means 311: QR code generation unit
312: QR code management unit 313: electronic map mapping unit
314: information input unit 315: authentication processing unit
321: QR code database 322: Product Information Database
323: Shipping Information Database 324: Sales Information Database
325: Design Information Database 326: Construction Information Database

Claims (12)

A plurality of ground indicators (10-1, 10-2, ..., 10- installed on the ground of a plurality of points, including the base information, location information of the plurality of points and information of underground facilities 200 buried nearby. n);
A plurality of basements including information of the underground facilities 200 included in the plurality of ground indicators (10-1, 10-2, ..., 10-n) and buried underground with the underground facilities (200) Indicators 20-1, 20-2, ..., 20-n;
Information is obtained from the plurality of ground indicators 10-1, 10-2, ..., 10-n and the plurality of underground indicators 20-1, 20-2, ..., 20-n. A user terminal 30 which grasps the base information, the location information, and the location information of the underground facility 200 buried in the vicinity of a point where a plurality of ground indicators and underground signs are installed;
A communication network 40 providing communication between the user terminal 30 and the location information server 50;
A plurality of ground indicators (10-1, 10-2, ... 10-n) and underground indicators 20-1, 20-2, ..., in the user terminal 30 through the communication network 40 20-n) receives the encryption code included in the plurality of ground indicators (10-1, 10-2, ... 10-n) and underground indicators (20-1, 20-2, ..., 20 -n) is composed of a location information server 50 to decode the information contained in the information transmitted back to the user terminal 30,
The user terminal 30,
When the information of the underground facility 200 is needed, information can be obtained by recognizing the ground indicator including the underground facility 200 related information.
Recognize the ground indicator and the ground indicator as necessary, and transmits the location information of the ground indicator and the ground indicator at the time of recognition to the location information server 50,
The location information server 50 detects a change in the location of the ground indicator and the ground indicator by using the location information of the ground indicator and the ground indicator transmitted from the user terminal 30. Underground Facility Management System. The method of claim 1,
The plurality of ground indicators (10-1, 10-2, ... 10-n) and underground indicators (20-1, 20-2, ..., 20-n) is to construct the underground facility 200 At the time, it measures the point around the underground facilities and stores the base information, location information, topographic information and the property information of the underground facilities, or electronic tag such as NFC-based RFID, RTLS tag based on WLAN, Wi-Fi device. Underground facility management system using information recognition means, characterized in that. delete The method of claim 2,
Base information, location information, terrain information and the ground indicators (10-1, 10-2, ... 10-n) and underground indicators (20-1, 20-2, ..., 20-n) Underground facility management system using information recognition means characterized in that the attribute information of the underground facility is encrypted and stored so that it cannot be known by general means. The method of claim 1,
The user terminal 30 is a general telephone, a smart phone, a PDA, a tablet PC, and the plurality of ground indicators 10-1, 10-2, ... 10-n and a plurality of underground indicators 20-1, 20-2, ..., 20-n) by receiving a code or information including the information indicated by the plurality of ground indicators (10-1, 10-2, ... 10-n) and a plurality of underground indicators ( 20-1, 20-2, ..., 20-n) to grasp the base information, location information and the information of the underground facilities (200) buried nearby and location information server ( 50) underground facility management system using information recognition means characterized in that provided to. The method of claim 1,
The plurality of underground tables 20-1, 20-2,..., 20-n are displayed on the underground facility 200 itself or attached to the underground facility 200 when the underground facility 200 is constructed. Underground facility management system using information recognition means, which is buried underground together around the facility. delete delete delete delete delete delete

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