WO2013018971A1

WO2013018971A1 - Underground facility management system using information recognition means

Info

Publication number: WO2013018971A1
Application number: PCT/KR2012/002453
Authority: WO
Inventors: 구승엽
Original assignee: 주식회사 차후
Priority date: 2011-08-04
Filing date: 2012-04-02
Publication date: 2013-02-07

Abstract

The present invention provides an underground facility management system using an information recognition means, comprising: a plurality of ground indicators (10-1, 10-2,..., 10-n), which are mounted to a plurality of places on the ground and include base information and location information on the plurality of places and information on a nearby underground facility (200); a plurality of reference indicators (20-1, 20-2,..., 20-n) mounted to non-movable places; a user terminal (30) for assessing the base information and the location information of the places to which the plurality of ground indicators and the plurality of reference indicators are mounted and location information on the nearby underground facility (200) by acquiring information from the plurality of ground indicators (10-1, 10-2,..., 10-n) and the plurality of reference indicators (20-1, 20-2,..., 20-n); a communication network (40) for providing communication between the user terminal (30) and a location information server (50); and the location information server (50) for receiving encrypted codes included in the plurality of ground indicators (10-1, 10-2,..., 10-n) and the plurality of reference indicators (20) from the user terminal (30), decrypting information included in the plurality of ground indicators (10-1, 10-2,..., 10-n) and the plurality of reference indicators (20), and transmitting the decrypted information to the user terminal (30).

Description

Underground facility management system using information recognition means

The present invention relates to an underground facility management system, and more particularly, includes a plurality of underground indicators that include information on underground facilities and include ground indicators installed on the ground and information on underground facilities and are buried underground with the underground facilities. It is stored in information recognition means such as bar code, QR code, magnetic marker, RFID tag Wi-Fi device, and read by user terminal, so it is easy to access the homepage of the basement, location information, terrain information and attribute information of the underground facilities. Since the information of underground facilities is shared, it is possible to prevent the double accident of surveying the underground facilities every time of construction and to prevent large accidents caused by the construction without knowing the changed information. By measuring a point, base information, location information, and whether it is buried nearby It relates to an underground facility management system using information recognition means to verify the location of underground facilities by storing the information of the facilities in a 2D code or RFID tag, installing them on the ground indicators, and easily reading them from a portable terminal. .

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 the underground facilities, surveying for the acquisition of the topography, longitudinal and cross-sectional views, and the drawings of the underground facilities should be preceded. 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 a water and sewage maintenance management system for carrying out such projects 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.

In addition, dam water pipes and water pipes may be damaged due to floating ground or ground loads, but they cannot be easily found on the ground. Therefore, nowadays, a lot of manpower and equipment are put in place to perform the cumbersome management of monitoring with a leak detector.

Therefore, it is important to accurately locate underground facilities, but the existing analogue detection methods (sound detection, magnetic field detection, frequency detection, etc.) increase the false detection rate as the depth gets deeper, and the cost increases significantly, thus causing serious problems in security. I have it. To solve this problem, digital detection techniques using positioning techniques such as GPS are emerging. However, this digital technique has a disadvantage in that it is not possible to physically verify the location of the buried material after the covering after construction without the aid of the analog method. In particular, where ground or underground conditions change (usually disasters such as earthquakes), there is a need for means to verify this.

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 using an 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 the underground facility management system 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 using information recognition means that can update and confirm the change of information generated in real time.

It is also an object of the present invention to provide an underground facility management system using information recognition means that can calculate the exact position of the location where the water and sewage conduits are installed by a relative coordinate measuring method using a wireless LAN.

In addition, the present invention is to provide an underground facility management system using an information recognition means that can be installed on the ground to store the information to be compared to the target and to verify the location of the underground facility using the indicator.

In addition, the present invention measures the third point around the facility when construction of underground facilities, and stores the base information, location information, information of underground facilities buried nearby, etc., and easily use the information in the portable terminal Information recognition means that can verify the location of underground facilities by using the information of the third point by installing an indicator containing measurement information in a two-dimensional code or an electronic tag such as RFID that does not require additional measures for maintenance. To provide underground facility management system using

In order to achieve the above technical problem, the present invention, a plurality of ground indicators installed on the ground of a plurality of points, including the base information of the plurality of points, location information and information of the underground facility 200 buried nearby (10- 1, 10-2, ..., 10-n); A plurality of reference point indicators 20-1, 20-2, ..., 20-n installed at points where there is no possibility of movement; The information is obtained from the plurality of ground indicators 10-1, 10-2, ..., 10-n and the plurality of reference point 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 nearby, where a plurality of ground indicators and reference point indicators are installed; A communication network 40 providing communication between the user terminal 30 and the location information server 50; The plurality of ground indicators 10-1, 10-2,..., 10-n and encryption codes included in the reference point indicator 20 are received by the user terminal 30 through the communication network 40. It consists of a location information server 50 to decode the information contained in the ground indicators (10-1, 10-2, ... 10-n) and the reference point indicator 20 and transmits the information back to the user terminal (30) Provides an underground facility management system using information recognition means characterized in that.

Here, the pole 11a is placed on the ground indicator 10 to install the marker 11, and the marker 11 is a camera of the user terminal 30 at the reference point indicator 20 adjacent to the ground indicator 10. The distance between the ground indicator 10 and the reference point indicator 20 can be calculated by using a proportional equation based on the size of the marker 11 photographed by photographing, and the direction can be obtained by calculating the angle between the two points. .

Here, the reference point indicators 20-1, 20-2, ..., 20-n are underground facilities included in the plurality of ground indicators 10-1, 10-2, ..., 10-n. A plurality of underground tables 20-1, 20-2,..., 20-n embedded in the basement with the underground facilities 200, including the information of 200, and the user terminal 30 is When information of the underground facility 200 is needed, information may be obtained by recognizing the ground indicator including the underground facility 200 related information, and the ground indicator and the underground indicator may be recognized as needed. The location information of the ground indicator and the ground indicator at the time of recognition is transmitted to the location information server 50, and the location information server 50 transmits the location information of the ground indicator and the ground indicator transmitted from the user terminal 30. By using it can be configured to detect the change in the position of the ground indicator and the ground indicator.

Here, the plurality of ground indicators (10-1, 10-2, ... 10-n) and reference point indicators or underground indicators (20-1, 20-2, ..., 20-n) are underground facilities ( When constructing 200), it is a code storing the base information, location information, topographic information, and attribute information of the underground facilities by measuring the points around the underground facilities, or electronic tags such as NFC-based RFID, and wireless LAN-based RTLS. Tag, can be a Wi-Fi device.

Here, the user terminal 30 is a general telephone, smart phone, PDA, tablet PC, the plurality of ground indicators (10-1, 10-2, ... 10-n) and a plurality of reference point indicators or ground indicators Receiving a code or information including the information shown in (20-1, 20-2, ..., 20-n) and receiving the plurality of ground indicators (10-1, 10-2, ... 10-n) Understand the base information, location information, and the information of underground facilities 200 buried nearby, where a plurality of reference point indicators or underground tables 20-1, 20-2, ..., 20-n are installed. 40 may be provided to the location information server 50 through.

Here, 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. Or be buried underground together around the underground facilities.

Here, the user terminal 30 is selected from a triangular plane 71 formed by three ground indicators selected from the plurality of ground indicators or two ground indicators selected from the plurality of ground indicators and the plurality of reference indicators. Underground facilities entering the triangular surface 72 formed by one reference point indicator 20 can be configured to check the normal position.

Here, the electronic compass and the gyrometer built in the user terminal 30 can be configured to obtain a direction.

Here, the distance between the ground indicator 10 and the reference point indicator 20 is calculated by using the camera of the user terminal 30 to calculate and reflect the tolerance range for each measured distance, and the tolerance is the performance of the camera. Because the difference occurs depending on the experiment can be configured to measure the tolerance.

Here, when the absolute coordinate of the ground indicator 10 is within the tolerance range of the position coordinate measured by the user terminal 30 or the position coordinate measured by manual surveying, instrumentation, precision GPS measurement, or the like. The location information of 10) may be stored in the storage space of the user terminal 30 and used as another reference point.

Here, the ground indicators 10 whose relative positions have been verified through the reference point indicator 20 are used as new reference points, and the ground indicators of another measurement point using the verified ground indicator 10 as the reference point indicator 20. You can configure to continue the measurement while verifying (10).

Here, the area consisting of the three ground indicators 10 only when two or more of the three vectors connecting the three ground indicators 10 whose relative positions have been verified through the reference point indicator 20 are found to be correct. Only bays can be configured to be verified regions.

According to the present invention, it is possible to provide an underground facility management system using an 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, the underground facility management system using information recognition means to detect the movement of underground facilities during natural disasters such as earthquakes, landslides and floods by installing ground indicators on the ground where underground facilities are buried and underground indicators underground. Can be provided.

In addition, by using the information recognition means such as barcode or QR code installed in the conduit of underground facilities, obtain the location information and attribute information, and change the information generated by the construction by storing it in the database along with the construction information when construction It can provide an underground facility management system using information recognition means that can be updated and confirmed in real time.

In addition, it is possible to provide an underground facility management system using information recognition means that can calculate the exact position of the location where the water and sewage conduits are installed by a relative coordinate measuring method using a wireless LAN.

In addition, it is possible to provide an underground facility management system using an information recognition means that can be installed on the ground to store the information to be compared and to verify the location of the underground facility using this indicator.

In addition, by measuring the third point around the facility when constructing underground facilities, it stores base information, location information, and information of underground facilities buried nearby, and can easily use the information in portable terminals. Underground using information recognition means that can verify the location of underground facilities by using the information of the third point by installing indicators containing the measurement information in electronic tags such as two-dimensional code or RFID that do not require additional measures Facility management systems can be provided.

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.

8 is an embodiment of determining the location of an underground facility based on ground indicators installed at a third location according to the present invention;

9a to 9c is a method for checking whether the ground indicator according to the present invention using a smartphone camera,

10 is an embodiment of verifying the position information of another ground indicator by adding the ground indicator determined as normal by the present invention as a reference point,

11a to 11e is a verification method for checking whether or not the normal position of the underground facilities buried in the area to be confirmed by the ground indicator according to 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. However, the present invention is not limited to the embodiments disclosed below, but can be implemented in various different forms, only the embodiments to complete the disclosure of the present invention and complete the scope of the invention to those skilled in the art. It is provided to inform you. Therefore, the embodiments described in the specification and the drawings shown in the drawings are only the most preferred embodiment of the present invention and do not represent all of the technical idea of the present invention, various modifications that can be replaced at the time of the present application It should be understood that there may be equivalents and variations.

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 reference point indicators 20-1, 20-2, ..., 20-n which are installed at reference points whose positions do not change during completion inspection or maintenance; The information is obtained from the plurality of ground indicators 10-1, 10-2, ..., 10-n and the plurality of reference point 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 100 buried nearby, on which the ground indicators and the reference point indicators are installed; A communication network 40 providing communication between the user terminal 30 and the location information server 50; The plurality of ground indicators 10-1, 10-2,..., 10-n and encryption codes included in the reference point indicator 20 are received by the user terminal 30 through the communication network 40. It consists of a location information server 50 to decode the information contained in the ground indicators (10-1, 10-2, ... 10-n) and the reference point indicator 20 and transmits the information back to the user terminal (30) do.

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 marks of the ground indicators and the control point indicators are indicated using the

representative numbers

10 and 20 when they do not need to be distinguished.

A plurality of ground indicators (10-1, 10-2, ... 10-n) according to the present invention measures the third point around the underground facilities when constructing underground facilities, and the base information, location information and The information of the underground facility is stored in a code (for example, a barcode, a two-dimensional code including a QR code, etc.) or an electronic tag such as NFC-based RFID.

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

Points on the ground surface are prominent and less visible, such as signs, telegraph poles, stone burials, and surface ponds. This is not the case.

In addition, the point where there is little possibility of movement, for example, public institutions, landmark-scale large buildings, special facilities, and the National Geographic Information Institute reference point installation point, installs reference point indicators 20 on the ground and measures location information regardless of underground facilities. The measured information is stored in a code (for example, a barcode, a two-dimensional code including a QR code, etc.) or an electronic tag such as NFC-based RFID.

Similarly, the base information, the location information and the information of the underground facilities of the measured reference point indicators 20-1, 20-2, ... 20-n are encrypted and stored so that they cannot be known by general means.

Meanwhile, the reference point indicators 20-1, 20-2, ..., 20-n are underground facilities included in the plurality of ground indicators 10-1, 10-2, ..., 10-n. It may be a number of underground signs (20-1, 20-2, ..., 20-n) including the information of 200 and buried underground with the underground facility 200, in this case, When the user terminal 30 needs the information of the underground facility 200, the user terminal 30 may obtain information by recognizing the ground indicator including the underground facility 200 related information. Recognizes 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 is the ground indicator transmitted from the user terminal 30 The location information of the ground indicator and the ground indicator can be detected by using the location information of the ground indicator.

In addition, the code (for example, a bar code, a two-dimensional code including a QR code, etc.) according to the present invention may be produced by attaching a code printed matter or displayed on a conduit product at the time of production of a 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.

The user terminal 30 reads information from the information recognizing means 150, for example, a QR code, an electronic tag such as NFC-based RFID, a wireless LAN-based RTLS tag, a Wi-Fi frequency generator, and the like (QR). Codes, signals received from electronic tags, etc.), and the base information, location information, and topographical information and attribute information of the underground facilities (pipe material, pipe length, pipe diameter, Number, depth of pipe, pipe position, 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 code 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 information of the product, 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 performs GIS (location information, terrain information, attribute information, etc.) when the conduit product is installed when the conduit product with the corresponding product recognition information (eg, QR code) is installed and installed. 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.

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 based on 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.

8 shows an embodiment of determining the location of an underground facility based on ground indicators installed in a third location according to the present invention.

Information stored in a number of ground indicators (10-1, 10-2, ..., 10-n) through the measurement is the base information, location information, and underground facilities buried nearby. In particular, the neighboring underground facility information is stored not only absolute coordinates but also relative coordinates (3D vector).

The user reads the information of the ground indicators 10-1, 10-2, and 10-3 using the user terminal 30 to determine the location of the ground indicators 10-1, 10-2, and 10-3. If the base information, the location information, the information of the underground facilities buried nearby can be known, and the information of the ground indicators (10-1, 10-2, 10-3) read in this way to the location information server 50 The location information server 50 receives the geographic information from the National Geographic Information Institute server 60 and provides it to the user terminal 30 again.

The location information of the underground facilities (100-1, 100-2) can be known from the information on the underground facilities of the point where the ground indicators (10-1, 10-2, 10-3) are located, and at this time When the location of the underground facility is confirmed through the information, a triangular plane 71 formed by the three ground indicators 10-1, 10-2, and 10-3 and two ground indicators 10-1 and 10- 3) and the underground facilities (100-1, 100-2) entering the triangular surface 72 formed by the reference point indicator 20 can be confirmed that the normal position.

Underground facilities (100-3) that do not enter the triangular plane (71, 72) can be confirmed that the normal position, but because it is located close to the normal ground indicator (100-3) it is possible to determine whether or not normal by the actual survey.

Since the ground indicator 10-4 is not confirmed to be in a normal position, the ground indicator 10-4 cannot be used for verifying the location of the underground facility 100. Thus, the triangular plane formed by the normal ground indicators 10-2 and 10-3 and the ground indicator 10-4. The underground facility (100-5) located at (73) is a point where the normal position cannot be identified using the ground indicators (10-1, 10-2, 10-3).

At this time, if the normal position is not confirmed using a separate ground indicator, the position is likely to be wrong.

9A to 9C illustrate a method of checking whether the ground indicator according to the present invention is normal by using a camera of a smartphone.

As shown in FIG. 9a, the marker 11 is installed by raising the pole 11a on the ground indicator 10 to be checked for normality. The marker 11 should be sized to be photographed by the camera of the user terminal 30 even at a long distance (for example, the distance between the ground indicator 10 and the reference point 20), and the simple shape and color may be distinguished from surrounding objects. Must have

For example, the marker 11 according to the present embodiment is constituted by a rectangle having blue (or red, green, etc.) having a width of 2 m and a length of 1 m.

The method of measuring the position of the ground indicator 10 at the third position from the reference point 20 may be various methods such as manual surveying, instrumentation, and precision GPS measurement. However, the present embodiment is an embodiment of the method for measuring the position with only the user terminal 30 (for example, smart phone, etc.) without such a specific device or means. This will compensate for the inaccurate smartphone GPS feature.

The distance between the ground indicator 10 and the reference point 20 is calculated using a proportional equation based on the size of the marker 11 taken by photographing the marker 11 with the camera of the user terminal 30, and the angle between the two points. Calculate to find the direction.

At this time, the direction can be easily obtained by using the electronic compass and gyrometer built into the user terminal 30. However, if the precision is not perfectly accurate, it will affect the tolerance and measurement is necessary.

As described above, the distance (scalar) and the direction (vector) between the ground indicator 10 and the reference point 20 are obtained, and then the direction vector to the corresponding point is obtained by using the product of the distance and the direction.

The measurement using the camera of the user terminal 30 may also cause an error, so the calculated tolerance range for each measured distance is reflected. At this time, the tolerance occurs according to the camera performance, so measure the tolerance through experiment.

The absolute coordinates stored in the QR code or the RFID tag of the ground indicator 10 are read and compared with the position coordinates measured by the user terminal 30 or the position coordinates measured by manual surveying, instrumentation, or precision GPS measurement. Check whether is within tolerance.

It is possible to know whether the point of the ground indicator 10 has moved by whether the absolute coordinate of the ground indicator 10 is within the tolerance range of the position coordinate measured by the various methods.

That is, as shown in FIG. 9C, when the absolute coordinate of the ground indicator 10a is within the tolerance range of the measured position coordinates, the ground indicator 10a does not move or moves only a very fine distance. The location information stored in 10a can be used.

If there is a possibility that the ground indicator 10a has moved within the error tolerance range, in order to determine that the ground indicator 10a can use the ground indicator 10a even if there is such a movement, the measurement conditions may be limited to minimize the tolerance range. Use high performance cameras to minimize tolerances during measurement.

However, if the absolute coordinate of the ground indicator 10b is outside the tolerance range of the measured position coordinates, it means that the point of the ground indicator 10b has moved greatly, and thus the position information stored in the ground indicator 10a is Can not use it.

The location information of the ground indicator 10a usable in this way may be stored in a storage space of the user terminal 30 and used as another reference point.

FIG. 10 shows an embodiment of verifying the position information of another ground indicator by adding the ground indicator determined as normal by the present invention as a reference point.

The ground indicators (eg, 10-1 and 10-2) whose relative positions have been verified through the reference point indicator 20 are also exactly the same, so that the verified ground indicators 10-1 and 10-2 are Can be used as a new reference point.

For example, as shown in FIG. 10, the ground indicator 10-3 may be verified using the verified ground indicator 10-1, and the ground indicator may be verified using the verified ground indicator 10-2. 10-4, 10-6) can be verified. Similarly, the ground indicators 10-5 and 10-6 may be verified using the verified ground indicators 10-3 and 10-4.

Using six verified ground indicators (10-1 to 10-6) as the reference point, the ground indicators (10) of another measuring point are verified and the measurement is continued. It is possible to verify all ground indicators (10) in the area of interest.

At this time, the three ground indicators (10-1, 10) only when two or more of the three vectors connecting the three ground indicators (for example, 10-1, 10-2, 10-3) are confirmed to be correct. Only the area consisting of -2, 10-3) is determined as the verified area.

Therefore, the triangular plane 74 surrounded by the ground indicators 10-5 and 10-6 among the unvalidated areas can be determined as the verified area, but the triangular plane which is the ground indicators 10-4 and 10-5 as the base. (75) cannot be determined as the verified area because the ground indicators 10-7 have not been verified.

11A to 11E illustrate a verification method for confirming whether or not the position of the underground facilities buried in the area to be checked by the ground indicator according to the present invention is normal.

Underground facilities (100-2, 100-) to check whether the buried positions of the underground facilities (100-2, 100-3, 100-4, 100-5) buried in the area 76 to be checked are ok. 3, 100-4, 100-5) select the reference point and the measurement point near. Here, the reference point indicator 20 is installed at the reference point, and the point where a plurality of ground indicators 10-1 to 10-5 are installed at the measurement point is selected.

The measuring point is a point from which the position and direction of the reference point can be calculated, and two or more points are selected in order to be able to generate a surface after each point.

Code or RFID of the reference point indicator 20 and each ground indicator 10-1 to 10-5 by measuring the distance and azimuth between the reference point indicator 20 and the ground indicators 10-1 to 10-5 of each measurement point. Check whether the existing coordinates read from the tag match.

As shown in FIG. 11B, when the ground indicators (eg, 10-5) of the measuring points that do not coincide with the existing coordinates are separately recorded and the corresponding measuring points are connected to generate the triangular plane 77, the corresponding triangular plane 77 It is very likely that the location point of the underground facilities in the area of is not moved because the current measured coordinates match the previously measured coordinates.

This is because the existing coordinates recorded in the ground indicators coincide with the current measured coordinates, at least because there is no change in the ground, so it is highly likely that no change has occurred in the basement.

At this time, as shown in FIG. 11C, the ground indicators 10-1 and 10-2 of the measurement point determined as the normal positions are the positions currently measured by the existing position coordinates recorded at the time of installation of the ground indicators (when the installation of the underground facilities). Since the positioning content is normal, such as coinciding with the coordinates, it may be another reference point.

That is, the position coordinates of the other ground indicators 10-3 and 10-4 may be verified using the position coordinates of the verified ground indicators 10-1 and 10-2. When the position coordinates of the ground indicators 10-4 are verified using the position coordinates of the ground indicators 10-1 and 10-2 verified in this way, the ground indicators 10-1, 10-2, and 10-4 are formed. Underground facilities 100-2 and 100-3 located in the triangular plane 78 are very likely to have no positional variation.

Using the position coordinates of the ground indicators 10-1 and 10-2 verified as described above, the verification area is continuously expanded while verifying the position coordinates of the other ground indicators 10-3 and 10-4.

If the ground indicators 10-2 and 10-4 are verified as shown in FIG. 11D and the measurement points of the ground indicators 10-3 are not determined to be normal, the ground indicators 10-2, 10-3, Underground facilities 100-5 which are not located in the triangular plane 79 formed by 10-4) are very likely to have land / ground movement, and the information in the triangular plane 79 is determined to be unreliable.

Therefore, it is possible to verify whether the position coordinate is normal again using another measuring point or re-measure it by the location information recorded in the ground indicator 10-3 at the measuring point of the underground facility 100-5. Be sure to check.

As shown in FIG. 11E, when two or more of the vectors connecting the ground indicators 10-2, 10-4, and 10-6 installed at the three measurement points are verified to be normal, they are located in the corresponding triangular plane 79. The underground facility 100-5 may be determined to be normal.

Thus, whether the ground indicators (10-2, 10-4, 10-6) forming the triangular plane (79) including the underground facilities (100-5) by checking the normal status of the underground facilities (100-5). Unnecessary measurement work or recognition work, such as making a measurement, can be reduced.

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.

Claims

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 reference point indicators 20-1, 20-2, ..., 20-n installed at points where there is no possibility of movement;

The information is obtained from the plurality of ground indicators 10-1, 10-2, ..., 10-n and the plurality of reference point 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 nearby, where a plurality of ground indicators and reference point indicators are installed;

A communication network 40 providing communication between the user terminal 30 and the location information server 50;

The plurality of ground indicators 10-1, 10-2,..., 10-n and encryption codes included in the reference point indicator 20 are received by the user terminal 30 through the communication network 40. It consists of a location information server 50 to decode the information contained in the ground indicators (10-1, 10-2, ... 10-n) and the reference point indicator 20 and transmits the information back to the user terminal (30) Underground facility management system using information recognition means, characterized in that.
The method of claim 1,

The pole 11a is installed on the ground indicator 10 to install the marker 11, and the marker 11 is photographed by the camera of the user terminal 30 at the reference point indicator 20 proximate to the ground indicator 10. Information recognition means for calculating the distance between the ground indicator 10 and the reference point indicator 20 by using a proportional expression based on the size of the marker 11 photographed and calculating the angle between the two points. Underground facility management system.
The method of claim 1,

The reference point indicators 20-1, 20-2, ..., 20-n are underground facilities 200 included in the plurality of ground indicators 10-1, 10-2, ..., 10-n. ) And a number of underground tables (20-1, 20-2, ..., 20-n) embedded in the basement with the underground facilities 200,

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 according to claim 2 or 3,

The plurality of ground indicators (10-1, 10-2, ... 10-n) and reference point indicators or underground indicators (20-1, 20-2, ..., 20-n) are underground facilities (200) When constructing the construction, it measures the points around the underground facilities and stores the base information, the location information, the terrain information and the property information of the underground facilities, or the electronic tags such as NFC-based RFID, the wireless LAN-based RTLS tag, Underground facility management system using information recognition means, characterized in that the Wi-Fi device.
The method according to claim 2 or 3,

The user terminal 30 is a general telephone, a smart phone, a PDA, a tablet PC, the plurality of ground indicators (10-1, 10-2, ... 10-n) and a plurality of reference point indicators or underground indicators (20) Receiving a code or information including the information shown in -1, 20-2, ..., 20-n) and receiving the plurality of ground indicators (10-1, 10-2, ... 10-n) Understand the base information, location information of the point where the reference point indicators or underground indicators (20-1, 20-2, ..., 20-n) are installed and the information of the underground facilities 200 buried nearby and the communication network 40 Underground facility management system using information recognition means, characterized in that provided to the location information server 50 through.
The method of claim 3,

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.
The method of claim 2,

The user terminal 30 may include a triangular plane 71 formed by three ground indicators selected from the plurality of ground indicators, or two ground indicators selected from the plurality of ground indicators, and one selected from the plurality of reference indicators. Underground facilities entering the triangular surface (72) formed by the reference point indicator 20, the underground facility management system using the information recognition means, characterized in that identifying the normal position.
The method of claim 2,

Underground facility management system using information recognition means, characterized in that to obtain a direction using the electronic compass and gyrometer built in the user terminal (30).
The method of claim 2,

The distance between the ground indicator 10 and the reference point indicator 20 is calculated by using the camera of the user terminal 30 to calculate and reflect the tolerance range for each distance measured at the time of calculation, and the tolerance depends on the performance of the camera. Underground facility management system using information recognition means characterized in that the tolerance is measured through the experiment because the difference occurs.
The method of claim 2,

When the absolute coordinate of the ground indicator 10 is within the tolerance range of the position coordinate measured by the user terminal 30 or the position coordinate measured by manual surveying, instrumentation, precision GPS measurement, etc., the ground indicator 10 The location information of the underground facility management system using the information recognition means, characterized in that stored in the storage space of the user terminal 30 to use as another reference point.
The method of claim 2,

The ground indicators 10 whose relative positions have been verified through the reference point indicator 20 are used as new reference points, and the ground indicators 10 of another measurement point are used using the verified ground indicator 10 as the reference point indicator 20. Underground facilities management system using information recognition means characterized in that continue the measurement while verifying).
The method of claim 2,

Only the area consisting of the three ground indicators 10 is verified if only two or more of the three vectors connecting the three ground indicators 10 whose relative positions have been verified through the reference point indicator 20 are found to be correct. Underground facility management system using information recognition means, characterized in that the determined area.