KR102476572B1 - Underground facilities detection system for increasing reliability using laser rangefinder - Google Patents

Abstract

The present invention relates to an underground facility surveying system. More specifically, the present invention relates to an underground facilities surveying system for increasing reliability using a laser range finder, comprising: a tag unit attached to a surface of underground facilities and storing underground installation information and outputting the information in the method of RFID; an underground detection equipment reading the underground installation information of the tag unit, and checking the coordinate information from received GPS information, and outputting the underground installation information and the coordinate information; a survey target having one side end bound with the underground facilities and having the other side end exposed to the above-ground surface; a laser range finder mounted on the underground detection equipment, and irradiating a laser beam to the survey target, and analyzing position information, and tracking and controlling a moving path; a tablet receiving the underground installation information of the underground detection equipment, and operating a downloaded underground examination application, and displaying the GPS information; a mobile communication network accessing the tablet by the mobile communication method, and allocating a communication path; and a management computer accessing the mobile communication network, and managing the GIS information, and providing an underground examination application, and storing the underground installation information, and outputting the information analyzed by a program for statistics.

Description

Underground facility survey system that can increase reliability using a laser distance meter {UNDERGROUND FACILITIES DETECTION SYSTEM FOR INCREASING RELIABILITY USING LASER RANGEFINDER}

The present invention relates to an underground facility surveying system, and more particularly, to an underground facility surveying system capable of increasing reliability using a laser distance meter.

In general, as urbanization progresses rapidly, such as the improvement of industry, life, and culture, numerous underground facilities such as water and sewage pipes, gas pipes, electricity and communication lines, heating pipes, and oil pipelines have rapidly increased. A variety of types are also installed and used.

These underground facilities are being buried underground for reasons of aesthetics and safety of the city. In order to repair and manage various types of underground facilities, the location information of the underground facilities must be accurately confirmed and maintenance must be carried out efficiently through records. there is.

There are many factors that can harm the safety of underground facilities, but among them, damage caused by excavation work (excavator, driller), ground subsidence, and electrical corrosion caused by leakage current from subways or other underground facilities can be cited. there is.

In order to establish countermeasures against this, it is essential to accurately identify the location of underground facilities first of all, and in order to curb the risk of excavation work, it is the best way to identify and notify the exact location of various facilities at the time of permitting prior to construction. to be.

Conventionally, when underground facilities are buried, before filling the soil, one of the measuring workers supports the target while the other worker checks the location of the target using publicly known and common surveying equipment such as a total station on the ground. It uses a method or a marker, but it contains a problem that it is difficult to expect accuracy.

In addition, the method using a pipe locator is a universally used method and has the advantage of being relatively accurate and simple, but has the disadvantage of significantly lowering accuracy due to interference in places where facilities are buried in a complex manner, such as in downtown areas. So now it has reached the level of using GPR exploration equipment.

This method is a device that detects various underground structures and stratum structures by using high-frequency electromagnetic waves and a reception signal processing method to detect the location of an object. However, it is difficult to commercialize it because the detection results vary very sensitively depending on the physical properties of the soil.

These underground facilities can be managed by a geographic information system (GIS).

1 is a functional configuration diagram of a conventional underground facility surveying system using GPS.

Hereinafter, referring to the accompanying drawings, the underground facility surveying system according to the prior art includes a mobile communication terminal 100, a wireless access network 110, a mobile communication switching center 120, an SMS center 130, and a home location register. (135), inter-network interworking device 140, WAP gateway 145, LBSP 150, location determination server 152, location center 154, cadastral information server 180, Internet registry server 190, and U - It consists of a cadastral map server 160.

The mobile communication terminal 100 accesses the U-cadastral map server 160 to receive cadastral information for surveying, and the U-cadastral map server 160 requests user authentication. The U-cadastral map server 160 detects the location of the mobile communication terminal 100 that has succeeded in authentication, and displays and provides the location of the mobile communication terminal 100 on the electronic map of the corresponding area.

The U-cadastral map server 160 manages and provides cadastral map information provided by the cadastral information server 180 and mapped electronic map information.

The U-cadastral map server 160 inquires whether the lot number and boundary marking service is used through a user interface (UI), and terminates the cadastral survey service if the mobile communication terminal 100 does not use the service.

When the mobile communication terminal 100 uses the service, the U-cadastral map server 160 accesses the cadastral information server 180 to provide cadastral map information including the lot number of the point where the mobile communication terminal 100 is located and the boundary of the lot number. receiving, matching and overlapping cadastral map information and electronic map information, and providing them, and processing billing at the same time.

The U-cadastral map server 160 inquires whether or not the registry copy reading service is used by using the UI. If the service is not used, the cadastral survey service is terminated. (100) Receives and transmits a copy of the register of the branch or lot number where it is located, and processes billing.

The prior art has the advantage of being able to quickly check information such as the boundary of a lot number unit for an arbitrary area or location and a cadastral map.

However, the prior art has a problem in that information on features including topography and artificial structures (facility) cannot be recorded and managed in the underground. Therefore, it is necessary to develop a technology that records and accurately updates and manages information on underground facilities and terrain changes.

The matters described as the background art above are only for understanding the background of the present invention, and should not be taken as an admission that they correspond to prior art already known to those skilled in the art.

The present invention is to solve the above-mentioned problems of the prior art, and downloads GIS information of underground facilities under management using a mobile tablet and standard information, location, and coordinates of underground facilities measured on site with underground detection equipment. The purpose is to provide an underground facility surveying system that can increase reliability by using a laser distance meter that can directly input information into a tablet.

In addition, the present invention induces the movement path of the underground detection equipment by the laser distance finder to reduce input errors of actual measurement information and to increase reliability by using a laser distance finder that can be managed quickly and accurately through a management computer in real time Another purpose is to provide an underground facility surveying system.

The technical problems to be achieved by the present invention are not limited to the above-mentioned technical problems, and other technical problems not mentioned will be clearly understood by those skilled in the art from the description of the present invention. .

The configuration of the present invention for achieving the above object is a tag unit that is attached to the surface of an underground facility, stores underground installation information, and outputs it in an RFID method; Underground detection equipment that reads underground installation information of the tag unit, checks coordinate information from the received GPS information, and outputs underground installation information and coordinate information; A survey target in which the other end is exposed to the ground while one end is bound to the underground facility; A laser distance meter mounted on underground surveying equipment to irradiate a laser beam on a survey target and analyze location information to track and control a moving path; A tablet that receives underground installation information of underground detection equipment, operates the downloaded underground investigation app, and displays GPS information; A mobile communication network that connects to a tablet in a mobile communication method and allocates a communication path; A management computer that connects to a mobile communication network to manage GIS information, provide an underground survey app, store underground installation information, and output information analyzed by a statistical program; It is characterized in that it includes.

In the underground facility surveying system capable of increasing reliability by using a laser distance meter according to an embodiment of the present invention, the underground detection equipment includes a controller that generates a frequency control signal to be transmitted to a tag unit and recognizes data received from the tag unit; a transmission unit composed of a frequency variator for varying the frequency under the control of the control unit, a mixer for mixing and modulating the frequency control signal and the variable frequency, and an amplifier for amplifying the modulated signal of the mixer; A low-noise amplifier that amplifies the signal of the tag part with low noise, a phase changer that changes the phase of the variable frequency of the transmission part by 90 degrees, mixes the frequency signal of the phase changer and the output signal of the low-noise amplifier and demodulates it into an I signal, A mixer that mixes the output signal of the amplifier and demodulates it into a Q signal, a low-pass filter that filters the output I/Q signal of the mixer, an amplifier that amplifies the output signal of the low-pass filter, and a high filter that filters the output I/Q signal of the mixer. a receiver composed of a pass filter and an analog/digital converter that converts the output signal of the amplifier into a digital signal; It is preferable to include.

In the underground facility surveying system that can increase reliability using a laser distance meter according to an embodiment of the present invention, the survey target includes a stator made of a magnetic material mounted on the underground facility; and a rod installed to rotate via a hinge coupled to an upper end of the stator; It is preferable to include.

In the underground facility surveying system capable of increasing reliability using a laser distance meter according to an embodiment of the present invention, the tablet includes a first radio unit for transmitting and receiving data including underground installation information by wirelessly accessing the underground detection equipment; A tablet control unit that connects to the first wireless unit, downloads and operates an underground survey app, requests the download of facility GIS information, and controls overall operation of the tablet; a second radio unit receiving GPS information under the control of the tablet controller; a third radio unit for transmitting and receiving data signals to and from the mobile communication network under the control of the tablet controller; a GIS information storage unit that stores facility GIS information under the control of the tablet controller; and a touch display unit that outputs facility GIS information under the control of the tablet controller and inputs information and commands by touch; It is preferable to include.

In the underground facility surveying system that can increase reliability using a laser distance meter according to an embodiment of the present invention, the laser distance meter includes a height adjusting unit coupled to a lower portion of the laser distance meter; Vibration absorbing unit coupled to the lower part of the height adjusting unit; and a moving means coupled to a lower portion of the vibration absorbing unit and installed on an upper surface of the underground detection equipment. It is preferable to further include.

In the underground facility surveying system that can increase reliability using a laser distance meter according to an embodiment of the present invention, the height part is coupled to the top of the vibration absorbing part and has a space formed therein so that fluid can be accommodated. A height case; A height rod inserted into the height case to be movable up and down; a height control plate coupled to the side of the height rod and disposed between the outer surface of the height rod and the inner surface of the height case; A hydraulic pump connected to the height case to apply pressure to the fluid inside the height case; and a supply valve having one side connected to the height case and the other side connected to the first heat exchanger, and capable of selectively supplying the fluid inside the height case to the first heat exchanger; It is preferable to include.

In the underground facility surveying system that can increase reliability using a laser distance meter according to an embodiment of the present invention, the supply valve includes a valve case in which the inside is partitioned into a temperature sensing chamber and a fluid discharge chamber; A supply passage connecting the temperature sensing chamber and the height case; a first moving unit mounted inside the temperature sensing chamber and capable of moving left and right according to the temperature of the supplied fluid; an intermediate passage connecting the temperature sensing chamber and the fluid discharge chamber; a second moving unit installed inside the fluid discharge chamber and capable of moving left and right according to the temperature of the fluid supplied from the temperature sensing chamber; a first discharge passage connecting the fluid discharge chamber and the first heat exchanger; and a second discharge passage connecting the fluid discharge chamber and the second heat exchanger. It is preferable to include.

In the underground facility surveying system capable of increasing reliability using a laser distance meter according to an embodiment of the present invention, the first moving unit includes a first moving case mounted inside a temperature sensing chamber and sealed with wax therein; a first moving rod inserted into the first moving case so as to be movable left and right; a first opening/closing unit coupled to an end of the first moving rod and capable of opening and closing the intermediate passage; and a first moving spring installed between the first moving case and the first opening/closing unit. It is preferable to include

In the underground facility surveying system capable of increasing reliability using a laser distance meter according to an embodiment of the present invention, the second moving unit includes a second moving case mounted inside the fluid discharge chamber and sealed with wax therein; a second movable rod inserted into the second movable case so as to be movable left and right; a second opening/closing unit coupled to an end of the second moving rod to open and close the second discharge passage; and a second moving spring installed between the second moving case and the second opening/closing unit. It is preferable to include

In the underground facility surveying system that can increase reliability using a laser distance meter according to an embodiment of the present invention, the vibration absorbing part includes a step protruding from an inner wall of a height bridge formed under a height adjusting part; Upper support placed at the lower part of the step; a lower support disposed below the upper support; a first elastic body having one end in contact with the upper support member and the other end in contact with the lower support member to elastically press the upper support member upward; a second elastic body having one end in contact with the lower support member and the other end in contact with the inner bottom surface of the supporting portion to elastically press the lower support member upward; a first center support portion having a lower portion coupled to the supporting portion and an upper portion coupled to the lower protrusion of the lower support portion to support the central portion of the lower support portion; a second center support portion having a lower portion provided on an upper projection of the lower support portion and the other side portion being coupled to the upper support portion to support a central portion of the upper support portion; An elevation guide portion provided on the cover closing the top of the support and the upper support to guide the elevation of the upper support; and a support leg portion having an upper portion coupled to the support portion and a lower portion coupled to the side wall of the rail to support the support portion; It is preferable to include.

In the underground facility surveying system that can increase reliability by using a laser distance meter according to an embodiment of the present invention, the first central support includes: a lower adjustment bar having a lower portion screwed to a supporting portion and having a first groove; A first spring whose lower part is supported on the upper surface of the lower control bar; and an upper control bar having an upper portion screwed into a second groove provided in a lower protrusion and having a first spring supported at the lower portion. Including, it is preferable that the upper control bar is provided with a first protrusion is inserted into the first groove when the lower support is lowered.

In the underground facility surveying system capable of increasing reliability using a laser distance meter according to an embodiment of the present invention, the second central support unit includes a second spring provided in a third groove provided on an upper projection; and a central bar whose lower portion is supported by the second spring and whose upper portion is screwed into the fourth groove provided in the upper support. Including, it is preferable that the lower part of the central bar is slid up and down in the third groove.

The present invention having the above configuration downloads GIS information of underground facilities under management using a tablet, measures coordinate information, standard information, etc. at the site and directly inputs them into the tablet, and at the same time measures the movement path of the underground detection equipment as a laser distance. As it can be derived by the measuring device, it has the effect of reducing input errors of actual measurement information and updating and managing it quickly and accurately in real time.

In addition, the present invention has the advantage of generating various statistical data by analyzing the existing management information of the underground facility and the actually measured updated management information.

It is revealed that the accompanying drawings are illustrated as references for understanding the technical idea of the present invention, and thereby the scope of the present invention is not limited thereto.
1 is a functional block diagram of a conventional underground facility surveying system using GPS.
2 is a functional block diagram of an underground facility surveying system capable of increasing reliability using a laser distance meter according to an embodiment of the present invention.
3 is a block diagram showing the configuration of underground detection equipment according to an embodiment of the present invention.
Figure 4 is a view showing the appearance of a survey target according to an embodiment of the present invention.
5 is a view for explaining a movement path of an underground detection equipment equipped with a laser distance finder according to an embodiment of the present invention.
6 is a block diagram showing each configuration of a laser distance meter according to an embodiment of the present invention.
7 is a detailed functional configuration diagram of a tablet according to an embodiment of the present invention.
8 is a flowchart illustrating an operation example of a management computer according to an embodiment of the present invention.
9 is a flowchart illustrating an operation example of a tablet according to an embodiment of the present invention.
10 is an explanatory view of a state in which a management number is assigned to an underground facility according to an embodiment of the present invention and is operated.
11 is a diagram showing the surrounding environment information of an underground facility analyzed and output by operating a statistical program according to an embodiment of the present invention.
12 is a diagram showing state information of underground facilities analyzed and output by operating a statistical program according to an embodiment of the present invention;
13 is a diagram illustrating standard information analyzed and output by operating a statistical program according to an embodiment of the present invention.
14 is a view showing a state in which a laser distance meter according to an embodiment of the present invention is mounted on top of underground detection equipment.
15 is a cross-sectional view of a height adjusting unit according to an embodiment of the present invention.
16 is a cross-sectional view of a supply valve according to an embodiment of the present invention;
17 is a cross-sectional view of a vibration absorbing unit according to an embodiment of the present invention;
Figure 18 is a view showing a state in which the central support portion is coupled according to an embodiment of the present invention.

Hereinafter, based on the accompanying drawings, the present invention will be described in detail so that those skilled in the art can easily practice the present invention. However, the present invention may be embodied in many different forms and is not limited to the embodiments described herein.

In order to clearly describe the present invention, parts irrelevant to the description are omitted, and the same reference numerals are assigned to the same or similar components throughout the specification.

In addition, the terms or words used in this specification and claims should not be construed as being limited to ordinary or dictionary meanings, and the inventors use the concept of terms appropriately to describe their invention in the best way. It should be interpreted as a meaning and concept consistent with the technical idea of the present invention based on the principle that it can be defined.

2 is a functional block diagram of an underground facility surveying system capable of increasing reliability using a laser distance meter according to an embodiment of the present invention.

As shown, the underground facility survey system according to the present invention includes a GPS satellite 300, a tag unit 1000, an underground detection equipment 2000, a survey target 400, a laser distance meter 500, and a tablet 3000. , a mobile communication network (4000), and a management computer (5000).

GPS (Global Positioning System satellite 300) is composed of 24 or more that constantly operate at an altitude of 20,000 to 2.5 thousand kilometers (Km) above the ground, preferably at an altitude of about 20,183 km on average, each GPS satellite 300 is a global positioning system that broadcasts GPS information signals that can be analyzed by sea level, longitude, latitude and time for free The GPS satellite 300 is manufactured and operated in the United States, and China, Russia and Europe have known to operate the system.

The tag unit 1000 uses RFID (Radio frequency identification) and is also called a tag. It can be installed at intervals of ~10 m.

The tag attaches an antenna to the RFID chip, and data stored in the chip can be wirelessly transmitted through the antenna, and can be received by an RFID reader or scanning device having the same frequency as the antenna transmits. Various information can be stored in the FRID chip, and the stored information can be updated using the FRID reader.

The tag uses any one frequency selected from radio frequencies between 125 KHz and 915 MHz, and there are active and passive types.

The active type has a built-in battery or power supply and can wirelessly transmit and receive data up to a distance of about 30 meters, while the passive type receives operation power from the radio frequency transmitted by the reader and can reach a distance of about 30 centimeters to 6 meters can transmit and receive wirelessly.

The tag unit 1000 is fixed to the upper surface of the underground facility 200 buried underground, and the memory area of the chip includes the specifications of the underground facility 200, the date of burial, the buried level and coordinate information, the constructor, and others. In the following description, the information stored in the tag chip will be referred to as 'underground installation information'.

Therefore, the manager who manages the underground facility 200 can install one or more tag units 1000 in the underground facility 200 buried in a certain distance unit or a certain area unit and assign a designated management number to manage it. there is. Attached FIG. 8 shows a state in which the location where the underground facility 200 is installed is drawn on a map and managed by assigning a management number in units of a certain area, as an example.

Since a plurality of tag units 1000 are installed in the underground facility 200, a unique serial number is allocated to distinguish each tag unit, and the corresponding serial number is output together when stored information is output.

The underground detection equipment 2000 reads or scans the 'underground installation information' stored in the tag unit 1000, and is configured to move in a direction designated by the user along the surface using wheels mounted on the bottom of the body.

The underground detection equipment 2000 receives and analyzes the GPS information broadcasted by the GPS satellite 300, stores it as coordinate information consisting of longitude, latitude, sea level, time, etc. at the current location, and stores the information of the tag unit 1000 It can be read and stored in association with coordinate information at the location, and at the same time output can be transmitted at the request of the terminal or tablet 3000 connected by the Wi-Fi method.

3 is a block diagram showing the configuration of underground detection equipment according to an embodiment of the present invention.

The underground detection equipment 2000 is composed of a controller 2100, a transmitter 2200, and a receiver 2300, and the transmitter 2200 includes a frequency variator 2201 that varies the frequency by the controller 2100 and , a mixer 2202 for mixing and modulating the frequency control signal output from the control unit and the variable frequency of the frequency variator 2201, and an amplifier 2203 for amplifying the modulated signal output from the mixer to a predetermined level. do.

Here, the frequency shifter 2201 mainly uses a PLL, and the transmitter 2200 modulates the frequency control signal in an ASK manner by directly modulating the transmission frequency.

The receiver 2300 includes a low noise amplifier 2301, a phase shifter 2302, mixers 2303 and 2304, low pass filters 2305 and 2306, amplifiers 2307 and 2308, high pass filters 2309 and 2310, Analog/digital converters 2311 and 2312 are provided.

The low-noise amplifier 2301 low-noise amplifies the signal received from the tag unit 1000, and the phase shifter 2302 phase-shifts the variable frequency output from the frequency shifter 2301 of the transmitter 2200 by 90 degrees. .

The mixer 2303 mixes the frequency signal output from the phase shifter 2302 and the output signal of the low noise amplifier 2301 and demodulates the I signal, and the mixer 2304 mixes the frequency signal output from the frequency shifter 2201 The frequency and the output signal of the low noise amplifier 2301 are mixed and demodulated into a Q signal.

The low-pass filters 2305 and 2306 perform low-pass filtering of the I/Q signals output from the mixers 2303 and 2304, respectively, and the amplifiers 2307 and 2308 filter the signals output from the low-pass filters 2305 and 2306 is amplified to a predetermined level, and the high-pass filters 2309 and 2310 perform high-pass filtering on the I/Q signals output from the mixers 2303 and 2304, respectively.

The analog/digital converters 2311 and 2312 convert signals output from the amplifiers 2307 and 2308 into digital signals.

The controller 2100 controls the variable frequency of the frequency variator 2201, generates a frequency control signal to be transmitted to the tag unit 1000, analyzes the digital signal output from the receiver 2300, Data received from the tag unit 1000 is recognized based on the analysis result.

Figure 4 is a view showing the appearance of the survey target according to an embodiment of the present invention.

The survey target 400 rotates through a stator 410 made of magnetic material and a hinge 420 bound to the upper end of the stator so that the other end is exposed to the ground in a state where one end is bound to the underground facility 200 It consists of a rod 430 installed to enable.

The survey target 400 is configured to be able to adjust the length regardless of the buried depth of the underground facility 200, and a reflector (not shown) is attached to the upper end of the rod 430 to irradiate from the laser distance meter 500 on the ground It is possible to reflect the laser beam to be used, and it is also possible to scan by attaching a barcode in which the location or coordinate information of the underground facility 200, a management number, or the like is input.

5 is a view for explaining a movement path of the underground detection equipment equipped with a laser distance finder according to an embodiment of the present invention, and FIG. 6 shows each configuration of the laser distance finder according to an embodiment of the present invention. It is a block diagram.

The laser distance meter 500 is mounted in front of the upper end of the underground detection equipment 2000 and moves with the underground detection equipment to irradiate a laser beam to the survey target 400 installed at regular intervals on the ground on the underground facility 200. By doing so, location information can be analyzed.

That is, the signal detected by the laser distance meter 500 is received and analyzed by the underground detection equipment control unit 510 installed in the underground detection equipment 2000, and then the first motor 520 and the second motor 530 Depending on whether the drive is determined, the wheels of the underground detection equipment 2000 can be rotated forward or reverse, or the movement path in the left and right directions can be controlled.

7 is a detailed functional configuration diagram of a tablet according to an embodiment of the present invention.

The tablet 3000 is a portable computer (PC) that uses a touch keyboard without a keyboard and mouse for inputting information, and has a higher computing function than a known smartphone for mobile communication. It is common that the function is lower than that of a computer used for business purposes.

The tablet (3000) has good portability, is small and light, so it is easy to carry, the operating system (OS) is different from general computers, and application programs such as apps can be downloaded and operated. There is no ODD, HDD, etc., and it is connected to a general computer. It can send and receive music, video, and other data files.

The tablet 3000 has functions for wirelessly receiving mobile communication such as CDMA, W-CDMA, and TDMA communication, Wi-Fi communication, and GPS information signals broadcast by the GPS satellite 300, respectively. The functions of the scheme are generally included in the known technology.

That is, the tablet 3000 wirelessly connects to the underground detection equipment 2000 by Wi-Fi method, connects to the mobile communication network 4000 by mobile communication method, and connects to the GPS satellite 300 at the corresponding frequency of the satellite to obtain GPS information. receive

The tablet 300 includes a first wireless unit 3100, a tablet control unit 3200, a second wireless unit 3300, a third wireless unit 3400, a GIS information storage unit 3500, and a touch display unit 3600. Consists of

The first wireless unit 3100 transmits and receives various types of information data including 'underground installation information' by wirelessly accessing the underground detection equipment 2000 through Wi-Fi.

The underground installation information received by the first wireless unit 3100 is stored in an assigned area of the tablet 3000 in a state associated with information such as coordinate information and time confirmed by analyzing the GPS information.

The tablet control unit 3200 controls the first wireless unit 3100 to receive 'underground installation information', controls the third wireless unit 3400 to download, install and operate the 'underground investigation app', and also controls the 'facility jia'. The 'ES information' is downloaded and displayed, and the operation of each function unit constituting the tablet 3000 is monitored and each corresponding control signal is output and controlled.

The second wireless unit 3300 wirelessly connects to the GPS satellite 300 and receives GPS information under the control and monitoring of the tablet controller 3200 .

The GPS information received by the second wireless unit 3300 is provided to the tablet controller 3200 and analyzed into information such as latitude, longitude, sea level (altitude), and time at the current location.

The third wireless unit 3400 connects to the mobile communication network 4000 under the control and monitoring of the tablet controller 3200 and requests allocation of a communication path, connects to the management computer 5000, and uses the communication path set to be allocated and occupied. Through this, data signals are transmitted and received with the management computer (5000).

The data signals transmitted and received by the third wireless unit 3400 by accessing the management computer include facility GiS information, underground survey app, underground installation information, and environment information.

The GIS information storage unit 3500 stores and manages facility GIS information in an assigned area by the control and monitoring of the tablet control unit 3200, and at the same time, various types of information including underground installation information, environment information, and underground survey apps. are stored in each allocated area and output by search.

The touch display unit 3600 visually displays various data including facility GIS information under the control and monitoring of the tablet controller 3200, and at the same time receives specific commands, information, and data through touch.

8 is a flowchart illustrating an operation example of a management computer according to an embodiment of the present invention, FIG. 9 is a flowchart illustrating an operation example of a tablet according to an embodiment of the present invention, and FIG. 10 is a flowchart illustrating the present invention. 11 is a diagram illustrating a state in which management numbers are assigned to underground facilities according to an embodiment of the present invention, and FIG. 12 is a diagram showing state information of underground facilities analyzed and output by operating a statistical program according to an embodiment of the present invention, and FIG. It is an illustration of standard information.

The tablet (3000) connects to the management computer (5000) through the mobile communication network (4000), downloads and installs the 'underground investigation app (APP)' program, and wirelessly connects to the underground detection equipment (2000) to obtain underground installation information. Receive stored or output to be displayed.

An APP is a small-scale application program called an application, and a program with a small overall data size is installed and operated on a smartphone or tablet.

The tablet 3000 on which the underground survey app program is installed and operated is automatically connected to the management computer 5000 by the corresponding command input by the touch of the touch display unit 3600, and the tablet 3000 transmits and receives data signals. Equipped with a function to update the underground survey app in operation to a new version or to link stored underground installation information, measured environment information, and coordinate information at the location confirmed or measured to output to be transmitted to the management computer (5000) .

On the other hand, the tablet 3000 in which the underground survey app is operated accesses the management computer 5000 and receives the coordinate information designated by the tablet 3000 or the management number of the underground facility or the GPS satellite 300 at the current location analyzed. The 'facility GIS information' for the underground facility 200 in the area corresponding to the coordinate information is downloaded in a streaming method and output to the corresponding display unit, so that the user can confirm it.

The streaming method has an advantage in that it can be reproduced in real time as it is reproduced with a slight time difference while downloading.

In the general download method, the file is played after 100% download, so it could not be played in real time.

The tablet 3000 connects to the underground detection equipment 2000 and stores the received underground installation information in an assigned area, information on the surrounding environment where the underground detection equipment 2000 is located or where the underground facility 200 is installed, and the underground facility 200 ) is received through the touch display unit 3600 and stored in the allocated area, and at the same time transmitted to the management computer 5000 in a linked state.

The underground facilities 200 include sewage pipes, water pipes, communication pipes, electricity transmission and distribution pipes, gas pipes, oil pipelines, manholes, and the like.

Surrounding environment information constituting environmental information includes the management office, lot number, administrative dong, etc. Status information includes destruction, rust occurrence, failure, and operation of underground facilities, and standard information includes name, installation date, and management number , manufacturer, type, material, size, caliber, direction of rotation, etc.

The mobile communication network 4000 is wirelessly connected to the tablet 3000 within the service area by any one of the mobile communication methods including CDMA, WCDMA, and TDMA, and switches the communication path with the designated counterpart by request. transmits and receives data signals of

The management computer 5000 accesses the mobile communication network 4000, stores, updates, and manages facility GiS information of the underground facility 200, and provides an underground investigation app as a download upon request from the tablet 3000. In addition, underground installation information is received from the tablet 3000, stored in an assigned area, and analysis information is output by operating a statistical program.

The analysis information output by the management computer 5000 by the statistical program includes information on the surrounding environment of the underground facility 200, status information, standard information, etc., and the surrounding environment information is shown in FIG. , State information is the same as in FIG. 12 attached as an embodiment, and standard information is the same as FIG. 13 attached as an embodiment.

Hereinafter, the method of operating the underground facility by the management computer 5000 will be described. Coordinate information of the location where the underground facility 200 is buried and the management number for each location where the underground facility is buried and classified by the manager are connected. Stores and manages the GIS information of the facility in the assigned area. Here, management is described as including update.

The management computer 5000 operates a program for statistics according to an operator's or user's corresponding control command. Therefore, the management computer is set to a standby state.

The management computer (5000) determines whether the tablet (3000) is connected, and if the tablet is connected, provides information on the coordinates where the tablet is currently located and inputs the requested area or underground facility management number to provide GIS facilities in the corresponding area (area). Information is downloaded and provided in a streaming manner.

When the management computer 5000 determines that the environmental information actually measured in the field is input from the tablet, it stores it in an assigned area and manages it as updated information.

Here, information input includes information input by the tablet 3000 in a real-time connection state through the mobile communication network 4000 and information input by the tablet directly accessing the management computer 5000 online.

The management computer (5000) analyzes the control command input by the manager or operator or the control command input from the connected tablet and analyzes and classifies the stored information when it is determined to be an output request signal for statistical data, and at the same time processes statistics in a designated format. print out

The stored information includes facility GIS information and environmental information actually measured at the site.

In addition, the management computer 5000 is connected to the management computer 5000 via the mobile communication network 4000 or online, and the underground survey app is downloaded from the management computer in a streaming method, installed, and operated. Hereinafter, for simplicity of explanation, it will be described that the tablet is connected to the management computer via a mobile communication network.

The tablet 3000 inputs the coordinate information of the site where the GPS information received from the GPS satellite 300 is analyzed at the site where the underground facility 200 to be measured is installed, or the management number of the underground facility confirmed from the map showing the corresponding area. judge whether it is

Here, the map showing the management number of the underground facility 200 is shown in FIG. 9 as an example.

The tablet 3000 accesses the management computer via the mobile communication network, downloads the coordinate information of the site or the facility GIS information corresponding to the management number of the underground facility in a streaming method, stores it in an assigned area, and displays the information on the touch display unit 3600. print out and display

The tablet 3000 can output as multimedia if the facility GIS information is made up of multimedia, and wirelessly connects to the underground detection equipment 2000 through a Wi-Fi method so that the underground detection equipment reads from the tag unit 1000 operated in the RFID method. Check (read) the underground installation information and save it in the allocated area.

The tablet 3000 inputs environmental information actually measured in relation to underground facilities at the site and stores it in an assigned area, and the environmental information includes surrounding environment information, state information, standard information, and the like.

The tablet 3000 analyzes the set state and determines whether the environment information actually measured in the field is set to be updated and input to the management computer in real time.

When it is determined that the tablet 3000 is set to update and input environmental information to the management computer in real time, it connects to the management computer 5000 in real time via the mobile communication network 4000 .

On the other hand, if it is determined that the tablet 3000 is set to directly input environment information to the management computer online, the management computer is accessed online.

The tablet 3000 outputs the environmental information actually measured in the field and transmits it to the management computer connected in real time or online.

The present invention with the above configuration downloads GIS information of underground facilities under management using a tablet, measures coordinate information, standard information, etc. on the site and inputs them directly into the tablet, thereby reducing information input errors and managing updates quickly and accurately in real time. At the same time, it has the advantage of generating various statistical data by analyzing the existing management information of underground facilities and the actually measured updated management information.

14 is a view showing a state in which a laser distance meter according to an embodiment of the present invention is mounted on an upper part of underground detection equipment, and FIG. 15 is a cross-sectional view of a height adjusting unit according to an embodiment of the present invention. 16 is a cross-sectional view of a supply valve according to an embodiment of the present invention.

As shown, the laser distance meter 500 includes a height adjusting unit 800 coupled to the lower portion of the laser distance measuring unit 500, a vibration absorbing unit 700 coupled to the lower portion of the height adjusting unit 800, and A moving means 600 coupled to the lower portion of the vibration absorbing unit 700 and installed on the upper surface of the underground detection equipment 2000 is further included, and is mounted on the upper surface of the underground detection equipment 2000.

As described above, the underground detection equipment 2000 includes a controller 2100, a transmitter 2200, a receiver 2300, and the like.

The height adjusting unit 800 is installed above the vibration absorbing unit 700 and includes a height case 810, a height rod 820, a height adjusting plate 830, a hydraulic pump 840 and a supply valve 900. made including

The height case 810 has an empty interior, and a fluid (eg, oil, etc.) is accommodated in the height case 810.

The height rod 820 is inserted into the height case 810 so as to be movable up and down, and the laser distance meter 500 is coupled to the upper end of the height rod 820. As the height rod 820 moves up and down, the laser distance meter 500 also moves up and down.

The height control plate 830 is coupled to the side of the height rod 820 and is disposed between the outer surface of the height rod 820 and the inner surface of the height case 810. The hydraulic pump 840 is connected to the height case 810 to apply pressure to the fluid inside the height case 810. The hydraulic pump 840 may operate by being electrically connected to a control unit (not shown) or the like.

When the hydraulic pump 840 is operated so that the fluid pressure under the height control plate 830 becomes higher than the fluid pressure above the height control plate 830, the height control plate 830 and the height rod 820 are raised, and the hydraulic pressure When the pump 840 is operated so that the fluid pressure above the height control plate 830 becomes higher than the fluid pressure below the level control plate 830, the height control plate 830 and the height rod 820 are lowered.

At this time, as the elevation of the height rod 820 is repeated, the temperature of the fluid inside the height case 810 may gradually rise. To prevent this, the present invention further includes a supply valve 900, a first heat exchanger 850, and a second heat exchanger 860.

The supply valve 900 has one side connected to the height case 810 and the other side connected to the first heat exchanger 850, and selectively supplies the fluid inside the height case 810 to the first heat exchanger 850. can

A backflow prevention plate 811 is rotatably coupled to the inside of the height case 810 in contact with the first heat exchange passage 851 connected to the first heat exchanger 850 . The backflow prevention plate 811 can rotate only in the inner direction of the height case 810 to prevent the fluid inside the height case 810 from directly flowing into the first heat exchanger 850 .

Specifically, the supply valve 900 includes a valve case 910, a supply passage 920, a first moving part 930, an intermediate passage 940, a second moving part 950, and a first discharge passage 960. and a second discharge passage 970.

16(a) is a view showing a state in which the first switching unit 934 closes the intermediate passage 940, and FIG. 16(b) shows the first switching unit 934 closing the intermediate passage 940 ) is open, and FIG. 16(c) is a view showing the second opening/closing unit 954 opening the second discharge passage 970.

The inside of the valve case 910 is partitioned into a temperature sensing chamber 911 and a fluid discharge chamber 912 . A supply passage 920 connecting the temperature sensing chamber 911 and the height case 810 is formed at the lower end of the temperature sensing chamber 911, and the temperature sensing chamber 911 and the temperature sensing chamber 911 are formed at the upper end of the temperature sensing chamber 911. An intermediate passage 940 connecting the fluid discharge chambers 912 is formed. A first discharge passage 960 connecting the fluid discharge chamber 912 and the first heat exchanger 850 is formed on the upper left side of the fluid discharge chamber 912, and the fluid discharge channel 960 is formed on the upper right side of the fluid discharge chamber 912. A second discharge passage 970 connecting the discharge chamber 912 and the second heat exchanger 860 is formed.

The first movable part 930 is mounted inside the temperature sensing chamber 911 and can move left and right according to the temperature of the supplied fluid, and the second movable part 950 is mounted inside the fluid discharge chamber 912 It can move left and right according to the temperature of the fluid supplied from the temperature sensing chamber 911 .

The first movable part 930 is mounted inside the temperature sensing chamber 911 and is inserted into the first movable case 931 in which wax is sealed and movable left and right into the first movable case 931. The first moving rod 932, the first opening/closing unit 934 coupled to the end of the first moving rod 932 and capable of opening and closing the intermediate passage 940, the first moving case 931, and the first opening/closing unit It includes a first moving spring 933 installed between (934).

When the temperature of the fluid introduced into the temperature sensing chamber 911 is equal to or less than a preset first temperature (eg, 40 degrees), the first opening/closing unit 934, as shown in FIG. It moves to the left by the elastic restoring force of the moving spring 933 and closes the intermediate passage 940 .

Accordingly, the fluid inside the height case 810 is not transferred to the first heat exchanger 850, and the fluid inside the height case 810 maintains an appropriate temperature so that the height control unit 800 can operate smoothly. let it be

When the temperature of the fluid introduced into the temperature sensing chamber 911 is higher than the first preset temperature (eg, 40 degrees), as shown in FIG. 16(b), the wax inside the first moving case 931 expands and pushes the first moving rod 932 to the right, and the first opening/closing unit 934 overcomes the elastic restoring force of the first moving spring 933 and moves to the right to open the intermediate passage 940.

Accordingly, the fluid passing through the intermediate passage 940 passes through the first discharge passage 960 and is transferred to the first heat exchanger 850 . The temperature of the fluid transferred to the first heat exchanger 850 is lowered through heat exchange with the outside, and is introduced into the height case 810 again through the first heat exchange passage 851 .

At this time, the intermediate flow path 940 and the first discharge flow path 960 are arranged to face each other so that the fluid can move more smoothly. The second opening/closing unit 954 is disposed between the first discharge passage 960 and the second discharge passage 970 so that the fluid can pass through the first discharge passage 960 but not through the second discharge passage 970. make it impossible

The second movable unit 950 is mounted inside the fluid discharge chamber 912 and is inserted into the second movable case 951 in which wax is sealed and movable left and right into the second movable case 951. The second movable rod 952, the second opening/closing unit 954 coupled to the end of the second movable rod 952 and capable of opening and closing the second discharge passage 970, the second movable case 951, and the second A second moving spring 953 installed between the opening and closing units 954 is included.

When the temperature of the fluid introduced into the fluid discharge chamber 912 is equal to or greater than a preset first temperature (eg, 40 degrees) and equal to or less than a second temperature (eg, 80 degrees), in FIG. 16(b) As shown, the second opening/closing unit 954 is moved to the left by the elastic restoring force of the second moving spring 953 and is disposed between the first discharge passage 960 and the second discharge passage 970, and the fluid The first discharge passage 960 can pass through, but the second discharge passage 970 cannot pass through.

When the temperature of the fluid introduced into the fluid discharge chamber 912 is higher than the preset second temperature (eg, 80 degrees), as shown in FIG. 16(c), the wax inside the second moving case 951 expands to push the second moving rod 952 to the right, and the second opening/closing unit 954 overcomes the elastic restoring force of the second moving spring 953 and moves to the right to open the second discharge passage 970.

That is, the wax inside the first moving case 931 expands when the temperature is higher than the first preset temperature, and the wax inside the second moving case 951 does not expand when the temperature is higher than the first preset temperature, and when the temperature is higher than the second temperature. Inflate.

Accordingly, the fluid passing through the first discharge passage 960 is transferred to the first heat exchanger 850, the fluid passing through the second discharge passage 970 is transferred to the second heat exchanger 860, and The temperature of the fluid transferred to the second heat exchanger 860 is lowered through heat exchange with the outside, and is again introduced into the height case 810 through the second heat exchange passage 861.

In this way, the present invention allows heat exchange to occur more actively through the first heat exchanger 850 and the second heat exchanger 860 when the fluid inside the height case 810 has a high temperature higher than the preset second temperature. and can re-supply the cooled fluid more quickly.

17 is a view showing a cross-sectional view of a vibration absorbing unit according to an embodiment of the present invention, and FIG. 18 is a view showing a state in which a central support unit is coupled according to an embodiment of the present invention.

The vibration absorbing part 700 includes a step 710 protruding from the inner wall of the height leg 870 formed under the height adjusting part 800, an upper support 720 disposed under the step 710, The lower support member 730 disposed below the upper support member 720, one end abuts the upper support member 720 and the other end abuts the lower support member 730 to elastically press the upper support member 720 upward The first elastic body 740 has one end in contact with the lower support member 730 and the other end in contact with the inner bottom surface of the supporting portion 871 to elastically press the lower support member 730 upward. The second elastic body 750 and the upper support It includes the earth 720, the lower support 730, and the absorber 760 provided on the inner bottom surface of the supporting part 871.

A first vibration and noise absorber for absorbing noise while absorbing vibration may be further provided at the inner center of the first elastic body 740, and an agent for absorbing noise while absorbing vibration may also be provided at the inner center of the second elastic body 750. 2 A vibration noise absorber may be further provided. Foamed rubber, urethane, foamed urethane, sponge, cotton, porous fiber bundle, etc. may be used as the first vibration and noise absorber and the second vibration and noise absorber.

The step 710 is formed to protrude inward from the inner wall of the height leg 870 of the height adjusting unit 800, and a plurality of them may be formed radially or annularly protruded at regular intervals. As another embodiment, the height It may be formed through a plurality of screws penetrated from the outer circumferential surface of the leg 870 to the inside.

That is, a screw is penetrated and coupled inward from the outer circumferential surface of the height leg 870, a nut is coupled to one end exposed through the penetration, and this is fixed, and the upper support 720 is attached to the portion of the screw disposed inside the height leg 870. It is made so that the top surfaces are in contact.

Through this, a separate mold manufacturing and manufacturing process for forming the step 710 on the inner wall of the elevated bridge 870 can be eliminated, thereby reducing manufacturing cost.

The upper support member 720 has its upper surface in contact with the step 710 formed on the elevated leg 870 and is elastically supported upward by the first elastic body 740 disposed below, and protrudes downward on the lower surface. A protrusion is formed and the first elastic body 740 is disposed outside the protrusion.

At this time, it is preferable that the diameter of the upper support member 720 is smaller than the diameter of the inner circumferential surface of the height leg 870 so as to be movable up and down inside the height leg 870 .

The lower support member 730 is disposed below the upper support member 720 and the other end of the first elastic body 740 abuts and is supported. It is disposed inside the coupling part 873 formed in the lid 872 that closes the upper end of the 871.

At this time, the upper protrusion 731 protruding upward is formed on the upper surface of the lower support member 730, the first elastic body 740 is disposed on the outside around the upper protrusion 731, and the lower protrusion protruding downward on the lower surface A protrusion 732 is formed and the second elastic body 750 is disposed outside the lower protrusion 732 as a center.

Through this, the lower support member 730 is elastically supported upward by the second elastic body 750, and supports the other end of the first elastic body 740 from below so that the first elastic body 740 is elastically pressed upward. .

The first elastic body 740 is disposed between the upper support member 720 and the lower support member 730 to elastically support the upper support member 720 upward, and one end fits the lower surface of the upper support member 720. and the other end is disposed so as to come into contact with the upper surface of the lower support member 730.

Through this, the first elastic body 740 is compressed by the force of the height adjusting unit 800 moving downward due to external pressure and impact, and the height leg 870 of the height adjusting unit 800 moves downward. While being restored through the elastic restoring force, the height adjusting unit 800 is pushed upward.

The second elastic body 750 is disposed between the lower support member 730 and the inner bottom surface of the supporting portion 871 to elastically support the lower support member 730 upward, compressing and As it is restored, external pressure and impact are offset.

At this time, the second elastic body 750 may be a conventional coil spring, but preferably, a spring having a narrow upper part and a wider diameter toward the lower part is preferably used.

This is because it is common that the diameter of the inner bottom surface of the supporting part 871 is formed to have a wider diameter than the lower opening of the height leg 870, so the space of the inner bottom surface of the supporting part 871 having a wider diameter to make the most of it.

The absorber 760 is disposed on the inner bottom surface of the upper support member 720, the lower support member 730, and the supporting portion 871, and is formed of a soft material having elasticity such as silicon, urethane, rubber, etc., and the first The elastic body 740 and the second elastic body 750 are disposed so as to come into contact with each other.

The absorber 760 absorbs noise and force generated when the first elastic body 740 and the second elastic body 750 are compressed and returned by external pressure and impact to prevent noise and absorb the force generated at the same time. The first elastic body 740 and the second elastic body 750 can absorb impact while being compressed and returned less frequently.

In the present embodiment, the vibration absorbing part 700 has a lower part coupled to the supporting part 871 and an upper part coupled to the lower protrusion 732 of the lower support part 730 to support the center of the lower support part 730. The center support 770 and the lower part are provided on the upper projection 731 of the lower support 730, and the other side is coupled to the upper support 720 to support the center of the upper support 720 and the upper support The second central support 780 for adjusting the tension of the 720, the upper support 720 and the cover 872 closing the top of the support 871 are provided to guide the elevation of the upper support 720 An elevation guide unit 790 is further included.

The first center support portion can prevent the center portion from shaking by holding the center portion of the elevation leg 870 when the elevation leg 870 supporting the height adjusting portion 800 ascends and descends. In addition, it is possible to attenuate minute vibration transmitted to the central part of the height leg 870 supporting the height adjustment unit 800, and to adjust the supporting force of the height leg 870 by adjusting the height of the first center support portion 770. have.

In this embodiment, the first center support portion 770 has a lower portion screwed to the support portion 871 and a lower adjustment bar 771 having a first groove 771a, and a lower portion of the upper surface of the lower adjustment bar 771. The first spring 772 is supported by the upper portion, and the upper portion is screwed into the second groove provided in the lower protrusion 732, and the lower portion includes an upper adjustment bar 773 supporting the first spring 772.

Since the lower adjustment bar 771 of the first center support part 770 is screwed to the supporting part 871, adjusting the coupling depth of the lower adjustment bar 771 to the supporting part 871 reduces the number of the first springs 772. Since the degree of expansion and contraction can be adjusted, the supporting force of the lower support member 730 can be adjusted.

For example, when the lower adjustment bar 771 is raised in the direction of the upper adjustment bar 773, the first spring 772 is contracted to increase the supporting force of the lower support member 730, which is the height of the height leg 870. This can lead to increased support. At this time, it is assumed that the lower support 730 maintains a fixed position.

In this embodiment, a first groove 771a is provided on the upper part of the lower control bar 771, and a first groove 771a is provided on the inner wall of the first groove 771a when the lower support 730 is lowered. A protrusion 773a may be inserted.

In addition, in this embodiment, a first screw thread 771b is provided on the lower outer wall of the lower adjustment bar 771, passes through a groove provided in the supporting portion 871, and then screws into a block groove 622 provided in the moving block 620 can be combined In this embodiment, a screw thread is provided in the groove provided in the supporting portion 871 and can be screwed to the first screw thread 771b.

The lower part of the first spring 772 of the first center support part is supported on the upper surface of the lower control bar 771 and the upper part passes through the first protrusion 773a to be supported on the lower surface of the upper control bar 773. can

In this embodiment, the first spring 772 may be provided as a coil spring, and the elastic energy of the first spring 772 can be adjusted by adjusting the coupling depth between the lower control bar 771 and the upper control bar 773. can

The upper control bar 773 of the first center support 770 may be screwed to the third screw thread 734 provided on the lower protrusion 732 by the second screw thread 773b provided on the outer wall. In this embodiment, the upper control bar 773 may be accommodated in the second groove 733 provided in the lower support 730 in a coupled state.

In addition, in this embodiment, when the upper control bar 773 is lowered in the direction of the lower control bar 771, the first spring 772 is contracted to increase the supporting force of the lower support member 730. At this time, it is assumed that the lower support 730 maintains a fixed position.

On the other hand, in this embodiment, the size of the first center support portion 770 is shown to be smaller than that of the second elastic body 750, but this figure is shown by way of example and does not interfere with contraction and expansion of the second elastic body 750. Various design changes can be made within.

The second central support part 780 holds the central part of the height leg 870 like the first central support part 770 when the height leg 870 supporting the height adjusting part 800 moves up and down, thereby reducing the shaking of the central part. It can be prevented.

In addition, it is possible to attenuate minute vibration transmitted to the center of the height leg 870 supporting the height control unit 800 like the first central support unit 770, and by adjusting the height of the second central support unit 780. The supporting force of the height leg 870 can be adjusted.

In this embodiment, the second center support part 780 is supported by the second spring 781 provided in the third groove 735 provided on the upper protrusion 731, the lower part is supported by the second spring 781, and the upper part is supported by the upper part. A center bar 782 screwed into the fourth groove 721 provided in the earth 720 is included.

In this embodiment, the lower part of the central bar 782 slides up and down in the third groove 735, which is to provide conditions for the second spring 781 to contract and expand.

In this embodiment, a fourth screw thread 782a is provided on the upper part of the central bar 782, and the central bar 782 is provided with a fifth screw thread 722 provided on the upper support 720 through the fourth screw thread 782a. can be screwed into.

In this embodiment, when the center bar 782 is lowered in the direction of the lower support member 730, the second spring 781 is contracted to increase the supporting force of the upper support member 720 and the lower support member 730. At this time, it is assumed that the lower support member 730 and the upper support member 720 maintain a fixed position.

The elevation guide part 790 is provided on the cover 872 that closes the upper end of the upper support part 720 and the supporting part 871 to guide the elevation of the upper support part 720 .

In this embodiment, the elevating guide part 790 is provided on the upper part of the guide shaft 791 provided on the upper surface of the upper support member 720 and the guide shaft 791, and both ends are the height legs of the height adjusting unit 800. A guide bar 792 protruding outward from the leg hole 870a provided in 870, and a guide post 793 provided on the upper surface of the cover 872 to support both ends of the guide bar 792 so as to be able to move up and down. do.

In this embodiment, the guide post 793 can more stably support the elevation of the upper support member 720 in which guide grooves 793a supporting both ends of the guide bar 792 are provided.

In addition, in the present invention, the upper part is coupled to the supporting part 871 and the lower part is coupled to the side wall of the rail 610 to support the supporting part 871. Support leg part 630, moving block 620 and support leg part A vibration attenuating unit 640 is provided on the 630 to attenuate vibration transmitted to the support leg unit 630 .

The upper part of the support leg part 630 is coupled to the supporting part 871 and the lower part is coupled to the side wall of the rail 610 to support the supporting part 871, so that when the laser distance meter 500 moves, the supporting part 871 ) can be stably supported and shaking of the laser distance meter 500 can be prevented.

In this embodiment, the support leg portion 630 includes a first horizontal portion 631 provided on the outer wall of the supporting portion 871, a vertical portion 632 provided downward from the end of the first horizontal portion 631, and a vertical A second horizontal portion 633 provided in the direction of the rail 610 at an end of the portion 632 is inserted into the sidewall of the rail 610 and supported.

In this embodiment, the second horizontal portion 633 may be slidably coupled to the second rail groove 612 provided on the sidewall of the rail 610 . That is, when the laser distance meter 500 moves along the rail 610, the second horizontal portion 633 may also slide along the second rail groove 612.

In addition, in this embodiment, the support leg part 630 may support both sides of the supporting part 871 .

The vibration attenuator 640 is provided on the moving block 620 and the support leg 630 to damp vibration transmitted to the support leg 630 .

In this embodiment, the vibration damping unit 640 is a vibration damping body 641 disposed inside the support leg 630, one side is provided on the vibration damping body 641, and the other side supports the moving block 620. A plurality of vibration damping springs 642 provided on the leg portion 630 are included.

In this embodiment, the vibration damping body 641 may have a cross shape to support the plurality of vibration damping springs 642 at equal angles in four areas.

In this embodiment, the vibration damping spring 642 may be disposed inside the support leg 630 in a cross shape. That is, when determining based on the plurality of vibration damping springs 642 disposed on the right side of the drawing, the ends of the vibration damping springs 642 disposed on the upper side are coupled to the first horizontal portion 631, and on the right side The end of the disposed vibration damping spring 642 is coupled to the vertical portion 632, the vibration damping spring 642 disposed at the bottom is coupled to the second horizontal portion 633, and the vibration damping spring disposed on the left side ( 642 may be coupled to the movement block 620 .

On the other hand, in the present invention, a moving means 600 capable of moving the laser distance meter 500 in a horizontal direction (front and rear or left and right directions) on the underground detection equipment 2000 is further provided, and the moving means 600 It includes a rail 610 disposed on the upper surface of the underground detection equipment 2000 and a moving block 620 provided on the support 871 and movably coupled along the rail 610.

The rail 610 is disposed on the upper surface of the underground detection equipment 2000 and can be arranged in various forms depending on the shape of the underground detection equipment and the location of the operator.

The moving block 620 is provided on the bottom surface of the supporting part 871 and is movably coupled to the rail 610, and a ball bearing, sliding bearing, etc. are disposed therein to move along the rail 610. there is.

In this embodiment, a block protrusion 621 is provided on the moving block 620, and the block protrusion 621 can be slidably coupled to the first rail groove 611 provided on the rail 610.

In this embodiment, the moving block 620 may be integrally provided with the supporting portion 871.

The present invention described above is not limited by the above-described embodiments and the accompanying drawings, and it is common in the art that various substitutions, modifications, and changes can be made within the scope of the technical spirit of the present invention. It will be clear to those who have knowledge of

100: mobile communication terminal 200: underground facility 300: GPS satellite
400: survey target 500: laser distance meter 600: means of movement
610: rail 611: first rail home 612: second rail home
620: moving block 621: block protrusion 622: block home
630: support leg part 631: first horizontal part 632: vertical part
633: second horizontal portion 640: vibration damping unit 641: vibration damping body
642: Vibration damping spring 700: Vibration absorbing part 710: Step
720: upper support 721: fourth groove 722: fifth thread
730: lower support 731: upper projection 732: lower projection
733: second groove 734: third thread 735: third groove
740: first elastic body 750: second elastic body 760: absorber
770: first central support 771: lower control bar 771a: first groove
771b: first thread 772: first spring 773: upper control bar
773a: first protrusion 773b: second thread 780: second central support
781: second spring 782: center bar 782a: fourth thread
790: lifting guide unit 791: guide shaft 792: guide bar
793: guide post 793a: guide groove 800: height adjustment unit
810: height case 811: backflow prevention plate 820: height rod
830: height adjustment plate 840: hydraulic pump 850: first heat exchanger
851: first heat exchange passage 860: second heat exchange passage 861: second heat exchange passage
870: height leg 870a: leg hole 871: support
872: cover 873: coupling part 900: supply valve
910: valve case 911: temperature sensing chamber 912: fluid discharge chamber
920: supply passage 930: first moving part 931: first moving case
932: first moving rod 933: first moving spring 934: first opening/closing unit
940: intermediate flow path 950: second moving part 951: second moving case
952: second moving rod 953: second moving spring 954: second opening/closing unit
960: first discharge passage 970: second discharge passage 1000: tag part
2000: underground detection equipment 3000: tablet 4000: mobile communication network
5000: management computer

Claims (1)

A tag unit that is attached to the surface of the underground facility, stores underground installation information, and outputs it in the form of an RFID method; Underground detection equipment that reads underground installation information of the tag unit, checks coordinate information from the received GPS information, and outputs underground installation information and coordinate information; A survey target in which the other end is exposed to the ground while one end is bound to the underground facility; A laser distance meter mounted on underground surveying equipment to irradiate a laser beam on a survey target and analyze location information to track and control a moving path; A tablet that receives underground installation information of underground detection equipment, operates the downloaded underground investigation app, and displays GPS information; A mobile communication network that connects to a tablet in a mobile communication method and allocates a communication path; A management computer that connects to a mobile communication network to manage GIS information, provide an underground survey app, store underground installation information, and output information analyzed by a statistical program; Including,
The underground detection equipment,
a controller that generates a frequency control signal to be transmitted to the tag unit and recognizes data received from the tag unit; a transmission unit composed of a frequency variator for varying the frequency under the control of the control unit, a mixer for mixing and modulating the frequency control signal and the variable frequency, and an amplifier for amplifying the modulated signal of the mixer; A low-noise amplifier that amplifies the signal of the tag part with low noise, a phase changer that changes the phase of the variable frequency of the transmission part by 90 degrees, mixes the frequency signal of the phase changer and the output signal of the low-noise amplifier and demodulates it into an I signal, A mixer that mixes the output signal of the amplifier and demodulates it into a Q signal, a low-pass filter that filters the output I/Q signal of the mixer, an amplifier that amplifies the output signal of the low-pass filter, and a high filter that filters the output I/Q signal of the mixer. a receiver composed of a pass filter and an analog/digital converter that converts the output signal of the amplifier into a digital signal; including,
The survey target,
Stators made of magnetic materials mounted on underground facilities; and a rod installed to rotate via a hinge coupled to an upper end of the stator; Including,
the tablet,
A first radio unit for transmitting and receiving data including underground installation information by wirelessly connecting to the underground detection equipment; A tablet control unit that connects to the first wireless unit, downloads and operates an underground survey app, requests the download of facility GIS information, and controls overall operation of the tablet; a second radio unit receiving GPS information under the control of the tablet controller; a third radio unit for transmitting and receiving data signals to and from the mobile communication network under the control of the tablet controller; a GIS information storage unit that stores facility GIS information under the control of the tablet controller; and a touch display unit that outputs facility GIS information under the control of the tablet controller and inputs information and commands by touch; including,
The laser distance meter,
A height adjustment unit coupled to the lower part of the laser distance meter; Vibration absorbing unit coupled to the lower part of the height adjusting unit; and a moving means coupled to a lower portion of the vibration absorbing unit and installed on an upper surface of the underground detection equipment. Including more,
The height adjustment unit,
A height case coupled to an upper portion of the vibration absorbing unit and having a space formed therein to accommodate fluid; A height rod inserted into the height case to be movable up and down; a height control plate coupled to the side of the height rod and disposed between the outer surface of the height rod and the inner surface of the height case; A hydraulic pump connected to the height case to apply pressure to the fluid inside the height case; and a supply valve having one side connected to the height case and the other side connected to the first heat exchanger, and capable of selectively supplying the fluid inside the height case to the first heat exchanger; including,
The supply valve is
A valve case in which the inside is divided into a temperature sensing chamber and a fluid discharge chamber; A supply passage connecting the temperature sensing chamber and the height case; a first moving unit mounted inside the temperature sensing chamber and capable of moving left and right according to the temperature of the supplied fluid; an intermediate passage connecting the temperature sensing chamber and the fluid discharge chamber; a second moving unit installed inside the fluid discharge chamber and capable of moving left and right according to the temperature of the fluid supplied from the temperature sensing chamber; a first discharge passage connecting the fluid discharge chamber and the first heat exchanger; and a second discharge passage connecting the fluid discharge chamber and the second heat exchanger. Including,
The first moving part,
A first moving case mounted inside the temperature sensing chamber and sealed with wax therein; a first moving rod inserted into the first moving case so as to be movable left and right; a first opening/closing unit coupled to an end of the first moving rod and capable of opening and closing the intermediate passage; and a first moving spring installed between the first moving case and the first opening/closing unit. including,
The second moving part,
a second moving case mounted inside the fluid discharge chamber and sealed with wax therein; a second movable rod inserted into the second movable case so as to be movable left and right; a second opening/closing unit coupled to an end of the second moving rod to open and close the second discharge passage; and a second moving spring installed between the second moving case and the second opening/closing unit. Including,
The vibration absorber,
Steps protruding from the inner wall of the height leg formed at the lower part of the height control unit; Upper support placed at the lower part of the step; a lower support disposed below the upper support; a first elastic body having one end in contact with the upper support member and the other end in contact with the lower support member to elastically press the upper support member upward; a second elastic body having one end in contact with the lower support member and the other end in contact with the inner bottom surface of the supporting portion to elastically press the lower support member upward; a first center support portion having a lower portion coupled to the supporting portion and an upper portion coupled to the lower protrusion of the lower support portion to support the central portion of the lower support portion; A second central support portion having a lower portion provided on an upper projection of the lower support portion and the other side portion coupled to the upper support portion to support the central portion of the upper support portion; An elevation guide portion provided on the cover closing the top of the support and the upper support to guide the elevation of the upper support; and a support leg portion having an upper portion coupled to the supporting portion and a lower portion coupled to the sidewall of the rail to support the supporting portion. including,
The first central support,
A lower control bar having a lower portion screwed to the supporting portion and having a first groove; A first spring whose lower part is supported on the upper surface of the lower control bar; and an upper control bar having an upper portion screwed into a second groove provided in a lower protrusion and having a first spring supported at the lower portion. Including, wherein the upper control bar is provided with a first protrusion is inserted into the first groove when the lower support is lowered,
The second central support,
A second spring provided in the third groove provided in the upper projection; and a center bar whose lower portion is supported by the second spring and whose upper portion is screwed into the fourth groove provided in the upper support. Including, the underground facility surveying system that can increase reliability using a laser distance meter, characterized in that the lower part of the center bar is slid up and down in the third groove.

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