KR101873370B1

KR101873370B1 - Underground facility location surveying system using triangulation method

Info

Publication number: KR101873370B1
Application number: KR1020180007915A
Authority: KR
Inventors: 위광재; 심완섭; 김성학; 김준성
Original assignee: 주식회사 지오스토리
Priority date: 2018-01-22
Filing date: 2018-01-22
Publication date: 2018-07-03

Abstract

The present invention relates to an underground facility location measurement system using a triangulation technique, and more particularly, to an improved underground facility location measurement system using triangulation techniques to effectively measure target points of underground facilities that can not be directly measured by buildings or other structures The present invention relates to an underground facility location surveying system using an underground facility.

Description

[0001] The present invention relates to an underground facility location surveying system using a triangulation method,

The present invention relates to an underground facility location surveying system using triangulation method among underground facility surveying technology fields, and more particularly, to a surveying system for underground facility location surveying system that can effectively measure a target point of underground facilities that can not be directly surveyed because of buildings or other structures To an underground facility location measurement system using an improved triangulation technique.

In general, a surveying system used for measuring distances and azimuths between a distant target point and a reference point includes a target 1 installed at a target point A, as shown in Figs. 1 and 2, And a measurement apparatus 2 installed at a reference point B for measuring an azimuth angle? 1 and a distance L1 of a target point A provided with the target 1. [

At this time, the retroreflector 1a is attached to the target 1 so that the light emitted from the light source is reflected again by the light source.

The measuring apparatus 2 includes a light wave distance measuring device 2a for measuring a distance using a light wave and a total station equipped with an electronic weather wave measuring device 2b for measuring an azimuth angle of the light wave transducing device 2a .

When the worker observes the retroreflector 1a of the target 1 through the telescope, the light wave outputted from the light emitting unit is transmitted to the target 1 The time period for which the light wave emitted from the light emitting portion is reflected by the retroreflector 1a of the target 1 and returns to the light emitting portion is measured and the light reflected from the reference point B (L1) to the target point (A).

The electronic seed lamp 2b measures an azimuth angle of the optical wavefront measurer 2a directed by the operator while the operator adjusts the light wave of the optical wavefront detector 2a to irradiate the retroreflector 1a of the target 1 , And the azimuth angle? 1 from the reference point (B) to the target point (A).

After the target 1 and the measurement apparatus 2 are installed at the target point A and the reference point B, the light wave output from the optical wavefront transducer 2a is transmitted to the target 1 The light wave transducer 2a calculates and outputs the distance L1 between the reference point B and the target point A when the measuring device 2 is adjusted so as to irradiate the retroreflector 1a At the same time, the electronic caludolite 2b measures and outputs the azimuth angle? 1 of the target point A with respect to the reference point B, thereby completing the surveying quickly and accurately.

3, when the light wave output from the optical wavefront transducer 2a is transmitted from the reference point B to the target point A (see FIG. 3) (3) or other structures disposed between the building (3) and the building (3).

In this case, the third auxiliary surveying point C is set so that the target 1 and the surveying device 2 are installed at the reference point B and the auxiliary surveying point C, respectively, The distance L2 and the azimuth angle? 2 between the auxiliary measurement point C and the target point A are measured and the target 1 and the measurement apparatus 2 are installed at the auxiliary measurement point C and the target point A, The distance L3 between the auxiliary measurement point C and the target point A and the azimuth angle 3 are calculated using the triangulation method for calculating the measured distance and the azimuth angle, The distance L1 of the point A and the azimuth angle? 1 should be obtained.

However, in order to measure the distance and the orientation between the reference point B and the target point A by using the triangulation method as described above, since two surveying operations must be performed, not only is the work very troublesome and time consuming, There is a problem that it takes a lot of time.

Therefore, a new method for solving such problems is needed.

Korea Patent Registration No. 10-1351566 (Aug. 2014) 'Triangulation System'

SUMMARY OF THE INVENTION The present invention has been made in view of the above-described problems of the prior art, and it is an object of the present invention to provide an improved triangulation method and apparatus for effectively measuring a target point of an underground facility that can not be directly measured, And to provide an underground facility location measurement system using the method.

The present invention provides a method for detecting a target point A from a reference point B to a target point A from a reference point B in a state where the target point A is obscured by a building 3 or a structure, An auxiliary measurement point C is set separately from the target point A and the reference point B so that the distance L1 to the point A and the azimuth angle 1 can be measured and measured and the target point A , A first measuring device (20) installed at the auxiliary measuring point (C), and a second measuring device (30) installed at the reference point (B); The target 10 is provided with a retroreflector 11 and the first measuring device 20 is provided with a support 21 and a support member 21 which is provided on the support 21, (3) from the auxiliary measurement point (C) to the target point (A), which is provided on the support base (21) And a retroreflector (24) provided on a circumferential surface of the support base (21); The second measuring apparatus 30 includes a support base 31 and a light wavefront measuring unit 32 for measuring a distance L2 from the reference point B to the auxiliary surveying point C, (33) for measuring an azimuth (? 2) from the reference point (B) to the auxiliary survey point (C); The distance L3 from the auxiliary measurement point C to the target point A and the azimuth angle 3 are measured using the first measurement apparatus 20 and the second measurement apparatus 30 is used 2 from the reference point B to calculate the distance L2 and the azimuth angle 2 from the reference point B to calculate the distance L1 from the reference point B to the target point A and the azimuth angle? (? 1); The distance L3 measured by the optical wavefront / near-field source 22 and the electronic seedlolight 23 and the azimuth angle and a wireless transceiver 34 provided in the second measuring apparatus 30 for receiving the distance L3 and azimuth angle? 3 wirelessly output from the wireless transmitter 25 (35) connected to the optical wavefront detector (32) of the second measuring apparatus (30) and the electronic caludolite (33) and the wireless receiver (34) In an underground facility position surveying system using a triangulation technique configured to display in real time the distance L1 and the azimuth angle? 1 from the calculated reference point B to the target point A connected to the display means 35a ; A wireless communication module 1010 that wirelessly communicates with the wireless transceiver 34 and receives survey information, a view image DB 1020 that stores or updates image information required for viewing, And a location display module (1030) for displaying a survey image according to the survey information, and displaying the survey information; The illustration server 1000 includes a housing 1200 and modules including the wireless communication module 1010, the illustrated image DB 1020 and the location display module 1030 are installed in the housing 1200, Lt; / RTI > The enclosure 1200 is formed in a rectangular box shape and a door DR capable of being opened and closed is installed on a front surface of the enclosure 1200 and air blowing units 1210 are provided on both sides of the enclosure 1200; The air blowing unit 1210 includes an air blowing case 1220. The air blowing unit 1220 has an air outlet OUT formed on the upper side thereof and an air inlet IN formed on the lower side thereof. The inlet guide 1240 is divided by the partition 1230 so that the outlet OUT does not communicate with the lower space and the inlet guide 1240 is arranged at an interval below the partition 1230, And an inlet 1250 for introducing silicon dioxide constituting a pore filter is formed on the one side of the inlet guide 1240. The inlet 1250 is sealed by an inlet door 1260 that can be opened and closed, The end of the feed hopper 1270 is disposed at the upper end of the feed hopper 1270 and the feed hopper 1270 is communicated with one side of the screw feeder 1280 so that the powdered silicon dioxide moves on the feed guide 1240, (1270) to the screw feeder (1280) Type filter 1290 is provided on the lower side of the inlet IN and the particle size of the silicon dioxide powder SI is formed larger than the inter-ring gap of the ring type filter 1290, The ring type filter 1290 is fitted in the fixture 1300. The fixture 1300 is screwed to the inner wall surface of the air blowing case 1220 and is fixed to the inner surface of the air blowing case 1220 A filtration air supply hole 1310 is formed at a lower side of the side where the inlet port 1250 is formed and the filtration air supply hole 1310 is communicated with the inside of the housing 1200 through a supply pipe 1320, And a lower plate 1330 is installed below the ring-type filter 1290; A charging unit 2000 is further provided on a side surface of the air blowing case 1220 to supply a predetermined amount of silicon dioxide powder and the charging unit 2000 is connected to the charging funnel 2100 and the lower end of the charging funnel 2100 A conveying motor 2300 installed in a space partitioned at one side of the conveying cylinder 2200 and a conveying screw 2400 connected to the conveying motor 2300 and arranged in the conveying cylinder 2200, A discharge port 2500 formed at the bottom surface of the end portion of the transfer cylinder 2200 and a discharge port 2700 for opening and closing the discharge port 2500 in a fixed amount, A fixing bracket 2900 coupled to an end of the transfer cylinder 2200 to fix the discharge cylinder 2800 and a fixing bracket 2900 disposed at a lower portion of the discharge hole 2500 and connected to the inlet 1250 And a discharge guide 2600; The filtered fine particles including the silicon dioxide powder separated and removed by air purge are stored in the discharge tray 3000 and the discharged fractions collected in the discharge tray 3000 are discharged through the discharge finishing pump 3100 into the hydro- And the hydrocyclone 3200 receives the discharge of the foreign material mixture and separates the silicon dioxide powder and the fine particles by the specific gravity difference in the cyclone manner and the upper part of the hydrocyclone 3200 The silicon dioxide powder SI dropped to the lower portion of the hydrocyclone 3200 is supplied to the inlet 1250 through the metering pump 3400 &Lt; / RTI > The air purge unit 1500 for purifying air includes a cylindrical nozzle unit 1510 having a plurality of spray holes 1520 and a connection unit 1530 having a larger diameter than the nozzle unit 1510 ; A binding portion 1540 in which a spray hole 1520 is not formed is formed at a boundary between the nozzle portion 1510 and the connection portion 1530; A cylindrical rubber tube 1550 is fitted to the nozzle unit 1510; A clamp 1560 for fixing a part of the lower end of the rubber tube 1550 is installed in the coupling part 1540; A circumferential groove 1512 having a diameter smaller than that of the nozzle unit 1510 is formed at the tip of the nozzle unit 1510. A tip end of the nozzle unit 1510 passes through the circumferential groove 1512, And the boundary between the circumferential groove 1512 and the dispersed guide plate 1514 is formed of an inclined surface. The underground facility location surveying system using the triangulation technique is characterized in that a dispersed guide plate 1514 having a relatively larger diameter is formed, .

According to the present invention, an improved effect can be obtained so as to effectively measure a target point of an underground facility that can not be directly measured because it is covered by a building or other structure.

1 is a reference view showing an installation state of a conventional surveying system.
2 is a side view showing a conventional surveying system;
3 is a reference diagram showing a conventional triangulation method.
4 is a reference diagram showing an example of triangulation according to the present invention.
5 is a side view showing a target used in triangulation according to the present invention.
6 is a side view showing a first measuring apparatus used in triangulation according to the present invention.
7 is a side view showing a second measuring apparatus used in triangulation according to the present invention.
8 to 11 are reference views showing a triangulation method according to the present invention.
12 is an exemplary block diagram of an illustrator server that constitutes a system according to the present invention.
13 is a view showing an enclosure of an illustrator server constituting a system according to the present invention.
Fig. 14 is an exemplary view showing a detailed configuration of a blowing unit installed in the housing of Fig. 13; Fig.
Fig. 15 is an exemplary view of a silicon dioxide input unit installed in the housing of Fig. 13;
16 is a configuration diagram of the silicon dioxide recycling unit provided in the housing of Fig.
FIG. 17 is an exemplary view showing a backflow prevention structure of an air purge unit installed in the housing of FIG. 13. FIG.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Before describing the present invention, the following specific structural or functional descriptions are merely illustrative for the purpose of describing an embodiment according to the concept of the present invention, and embodiments according to the concept of the present invention may be embodied in various forms, And should not be construed as limited to the embodiments described herein.

In addition, since the embodiments according to the concept of the present invention can make various changes and have various forms, specific embodiments are illustrated in the drawings and described in detail herein. However, it should be understood that the embodiments according to the concept of the present invention are not intended to limit the present invention to specific modes of operation, but include all modifications, equivalents and alternatives falling within the spirit and scope of the present invention.

Prior to the specific description, the present invention utilizes most of the configuration of Patent No. 10-1351566. Therefore, the basic structure is the content of the registered patent, and the present invention will be described in detail in a manner to be described later in detail as to the improved portion.

As shown in Figs. 4 to 11, the present invention is configured to measure a target point A covered by a building 3 or a structure at a reference point B. Fig.

At this time, the target point A is the point where the underground facility is located.

For example, as shown in Fig. 4, in addition to the target point A and the reference point B, auxiliary measurement points C capable of avoiding the building 3 covering the target point A are set, The target 10 and the first and second surveying devices 20 and 30 are installed at the target point A, the auxiliary surveying point C and the reference point B, Respectively.

More specifically, the sub-surveying point C is an area of the target point A without being disturbed by the structure 3 or the structure, such as the sub-surveying point C set for triangulation in the conventional surveying method. And the reference point B, and can be arbitrarily selected by the operator.

As shown in FIG. 5, the target 10 is formed in a vertically long bar shape and is installed at a target point A where an underground facility is located. In the circumferential surface, light irradiated from a light source is again reflected The retroreflector 11 is attached.

Since the structure of the target 10 is the same as that of the conventional art, detailed description is omitted.

6, the first measuring apparatus 20 includes a support base 21 and a support unit 21 which is provided on the support base 21 and which is capable of moving from the auxiliary survey point C to the target point A 3) for measuring an azimuth angle (? 3) from the auxiliary surveying point (C) to the target point (A) provided on the supporter (21) and measuring the distance (L3) A retroreflector 24 provided on the circumferential surface of the supporter 21 and a wireless transmitter 25 connected to the optical wavefront detector 22 and the electronic caludolite 23, Is installed at the auxiliary surveying point (C).

The support base 21 includes a top plate 21a and a plurality of legs 21b extending downward from the periphery of the top plate 21a so as to be adjustable in length. And a horizontal sensing means 21c for measuring the horizontal state of the upper plate 21a.

The horizontal sensing means 21c is configured to be bubbly or electronic and is provided on the upper plate 21a to confirm whether the upper plate 21a is horizontal or not.

Since the horizontal sensing means 21c is generally used for general measuring equipment, a detailed description thereof will be omitted.

Accordingly, the operator can extend the length of each leg 21b while checking the horizontal sensing means 21c in a state where the legs 21b of the support 21 are fixed to the ground, Respectively.

The optical wavefront transducer 22 is provided so as to be adjustable in a lateral direction and a vertical direction on the support base 21 so that an operator can control the light wave outputted from the light wave measurement to irradiate the retroreflective member 11 of the target 10 The distance L3 from the auxiliary measurement point C where the first measurement apparatus 20 is installed to the target point A where the target 10 is installed is measured.

The electronic seed lamp 23 is connected to the optical wavefront proximity sensor 22 so that when an operator adjusts the light wave output from the optical wavefront proximity sensor 22 to be applied to the retroreflector 11 of the target 10, The azimuth angle? 3 from the auxiliary measurement point C at which the first measurement apparatus 20 is installed to the target point A at which the target 10 is installed is measured by measuring the azimuth angle toward the telemeter 22.

At this time, the structures of the support table 21, the optical wavefront indicator 22, and the electronic caludolite 23 are the same as those of the conventional stationary measurement apparatus, .

The retroreflector 24 is provided on the circumferential surface of the supporter 21 so as to project from the reference point B to the auxiliary survey point C by using the light wave field locator 22 provided in the second surveying apparatus 30. [ So that it is possible to measure the distance up to a predetermined distance.

The radio transmitter 25 calculates the distance L3 from the auxiliary surveying point C to the target point A measured by the optical wavefront measuring device 22 and the distance L3 from the sub- And wirelessly outputs the azimuth angle [theta] 3 from the measurement point C to the target point A. [

7, the second measuring apparatus 30 includes a support base 31 and a wave transducer 32 for measuring a distance L2 from the reference point B to the auxiliary survey point C, An electronic ceodlite 33 provided on the support base 31 and measuring an azimuth angle? 2 from the reference point B to the auxiliary surveying point C, A wireless transceiver 34 for receiving a distance L3 and an azimuth angle θ3 from the optical transponder 32 and an operating unit 35 connected to the optical terrestrial television 32 and the electronic modulator 33 and the wireless transceiver 34 Is installed at the reference point (B).

At this time, the structure of the support 31, the optical wavefront / near-field junction 32, and the electronic caudalite 33 is the same as that of the first metering device 20 described above, and thus a detailed description thereof will be omitted.

A distance L3 from the auxiliary measurement point C output from the radio transmitter 25 to the target point A and an azimuth angle 3 from the auxiliary measurement point C to the target point A are received And outputs it to the arithmetic unit 35.

The calculation unit 35 calculates the distance L2 from the reference point B measured by the optical wavefront nearest to the auxiliary survey point C and the distance L2 measured from the reference measured by the electric taxiometer 33, An azimuth angle θ2 from the point B to the auxiliary surveying point C and a distance L3 from the auxiliary surveying point C received via the radio transmitter 25 to the target point A, The azimuth angle? 3 from the point C to the target point A is calculated to obtain the distance L1 from the reference point B to the target point A and the azimuth angle? ) And the azimuth angle? 1 from the calculated reference point B to the target point A in real time.

Hereinafter, the triangulation method will be described.

First, as shown in Fig. 4, the operator sets an arbitrary sub-survey point C in addition to the reference point B and the target point A. Fig.

At this time, the auxiliary surveying point C is set to a proper place where the reference point B and the target point A are not covered with the building 3 or the structure.

The target 10 and the first and second surveying devices 20 and 30 are installed at the target point A and the auxiliary measurement point C and the reference point B, respectively.

At this time, the method of installing the first and second surveying devices 20 and 30 is the same as the method of installing the conventional surveying device, and thus a detailed description thereof will be omitted.

8 and 9, when the optical wave output from the optical wavefront detector 22 of the first metering device 20 is irradiated to the retroreflector 11 of the target 10, The telegraph 22 and the electronic caludolite 23 measure the distance L3 and the azimuth angle 3 from the auxiliary measurement point C to the target point A and measure the distance between the auxiliary measurement point C To the target point A is wirelessly output to the radio transmitter 25 by the distance L3 and the azimuth angle?

10 and 11, when the light wave outputted from the optical wavefront detector 32 of the second measuring apparatus 30 is irradiated to the retroreflector 24 of the first measuring apparatus 20 The optical wavefront estimator 32 and the electronic caudalite 33 measure and output the distance L2 and the azimuth angle? 2 from the reference point B to the subordinate survey point C.

The distance L2 from the reference point B to the auxiliary surveying point C and the azimuth angle? 2 from the reference point B to the auxiliary surveying point C and the distance from the reference point B to the target point A 3 from the auxiliary measurement point C to the target point A is calculated and the control unit calculates the azimuth angle? 3 from the reference point B to the target point A And outputs the azimuth angle? 1 to the display means 35a.

Thus, a separate sub-surveying point C is set in addition to the reference point B and the target point A, and the target 10 and the sub- The distance L1 between the target point A hidden by the building or the structure at the reference point B and the azimuth angle? 1) can be obtained.

Therefore, it is possible to perform the measurement more simply and quickly than the conventional triangulation method in which the target 10 and the surveying equipment are moved while performing the survey work twice.

The electronic caludolite 23 of the first metering device 20 is provided with a radio transmitter 25 so that when the measurement of the first metering device 20 is completed, The distance L3 from the auxiliary surveying point C measured by the optical wavefront measuring instrument 22 to the target point A and the distance L3 from the auxiliary surveying point C measured by the electronic caludolite 23 to the target point A, The azimuth angle &thetas; 3 up to the azimuth A is transmitted to the second surveying apparatus 30 in real time.

When the measurement using the first measuring apparatus 20 and the second measuring apparatus 30 is completed, the calculating unit 35 calculates the distance L1 from the reference point B to the target point A, 1 from the reference point B to the target point A and to calculate the azimuth angle? 1 quickly can be completed.

In addition, the location information of the surveyed underground facility is transmitted to the viewer server 1000 as shown in FIG. 12 and utilized as display information.

In this case, the reader / writer server 1000 includes a wireless communication module 1010 that wirelessly communicates with the wireless transceiver 34 to receive survey information, a view image DB 1020 that stores or updates image information required for viewing, And a location display module 1030 for displaying a survey image according to the survey information received from the view image DB 1020. In addition, a plurality of modules, which are generally used for the display process, Respectively. However, since these modules need not be described in the present invention, they will be omitted here.

Meanwhile, the system according to the present invention is based on the above-described configuration and operation, and the illustration server 1000 includes a housing 1200 having a shape as shown in FIGS. 13 and 14, A plurality of modules such as the wireless communication module 1010, the picture image DB 1020, and the location display module 1030 are mounted in a sub rack form.

At this time, since the modules need to process a large amount of information, a large amount of heat is generated. By cooling the modules, deterioration is prevented, and dust is not scattered during cooling, thereby preventing short circuit. .

To this end, the enclosure 1200 is formed in a rectangular box shape, and a door DR capable of being opened and closed is provided on the front surface thereof, and an air blowing unit 1210 is provided on both sides of the enclosure 1200.

The air blowing unit 1210 is configured to cool the internal heat of the housing 1200 to prevent the electronic components mounted on the mounted module from being deteriorated and to prevent malfunction due to dust.

Particularly, in the present invention, the concept of a pore membrane filter capable of automatically eliminating the clogging of the filter is used by using a filter, so that a semi-permanent lifetime can be ensured while a filter is fixedly constructed without replacement .

Further, an air outlet OUT is formed on the upper side of the air blowing unit 1210, and an air inlet IN is formed on the lower side.

The air blowing unit 1210 includes a blowing case 1220.

The inside of the air blowing case 1220 is divided by the partition 1230 so that the air outlet OUT is separated from the lower space.

In addition, an introduction guide 1240 is arranged on the lower side of the partition wall 1230, and on the one side of the air blowing case 1220, an inlet guide 1240 for introducing silicon dioxide constituting the air- (1250) is formed.

The end of the insertion guide 1240 is disposed at the upper end of the loading hopper 1270 and the loading hopper 1270 is connected to one side of the screw feeder 1280.

Therefore, the silicon dioxide introduced through the inlet 1250 moves along the inlet guide 1240 and is guided to the screw feeder 1280 through the inlet hopper 1270, which is powdery.

In addition, a ring-type filter 1290 is provided below the inlet IN. The size of the silicon dioxide powder SI should be larger than the inter-ring spacing of the ring-type filter 1290.

Thus, the silicon dioxide powder SI is deposited on the peripheral surface of the ring-type filter 1290 to realize a kind of void film filter.

That is, the filter of the present invention has a dual structure such as a cavity filter-ring filter.

The ring type filter 1290 is fitted in the fixing member 1300. The fixing member 1300 may be screwed to the inner wall of the air blowing case 1220. [

A filtration air supply hole 1310 is formed at one side of the air blowing case 1220 and preferably at a lower side of the side where the introduction port 1250 is formed and the filtration air supply hole 1310 is connected to a supply pipe 1320 And is configured to communicate with the inside of the housing 1200 to supply the filtered air.

That is, since the suction pressure is formed inside the housing 1200 by the exhaust air pressure of the exhaust fan (FAN) through the exhaust port (OUT) rather than the supplied air, the outside air filtered through the filtered air supply hole 1310 is naturally sucked will be.

In addition, a check valve 1312 is provided in the filtered air supply hole 1310, and the check valve 1312 is normally opened so that it is closed only when the air purge unit 1500, which will be described later, .

The powder supply port SUP formed below the screw feeder 1280 is configured to be openable and closable by a sealing plate 1400. The sealing plate 1400 is a plate- And is installed so as to be drawn out through one side face.

To this end, a plate driving motor 1410 is installed on one side of the air blowing case 1220, a pinion 1420 is fixed to a motor shaft of the plate driving motor 1410, And a rack (not shown) having a predetermined width is formed on the upper surface of the one end so as to be engaged with the pinion 1420.

The operation of the plate driving motor 1410 is controlled by the closing and closing of the closing plate 1400 in accordance with the rotation direction of the plate driving motor 1410, It must be operated so as to move the plate 1400 so as to block the powder feed port SUP.

With such a construction, external pollutants such as dust are filtered by the pore filter, and the pores of the ring filter can not be sealed.

Since the void film filter is in powder form, after the use, the lower plate 1330 is taken out and the silicon dioxide powder SI deposited thereon is discharged to the open lower side of the air blowing case 1220, and a new silicon dioxide powder (SI) A semi-permanent filtering operation can be performed by replacing only the powder without replacing the ring-type filter 1290.

The air purge unit 1500 is installed inside the ring type filter 1290 and is configured to purge air according to a control signal of the system.

In this case, when the air purge is performed, the lower plate 1330 must be in a state of being removed, and the air gap filter made of silicon dioxide powder (SI) accumulated around the ring type filter 1290 is separated and separated by air purge, (Not shown).

Therefore, the clogging of the ring-type filter 1290 can be automatically canceled.

In this case, the lower plate 1330 may also be automated to be simultaneously drawn out from the sealing plate 1400 using a driving source such as a motor, a rack, and a pinion.

Then, when the air purging is completed, the backflow prevention valve 1312 and the mechanisms that have been operated for air purge return to their original state.

In addition, the filtered fine particles including the silicon dioxide powder separated and removed by air purge may be collected and sieved, and then only the silicon dioxide may be separated and reused.

In this way, the filter can be periodically filtered while preventing clogging through air purging, so that it can be used semi-permanently. Of course, carbon dioxide powder (SI) should be supplemented occasionally.

In addition, the air ventilation case 1220 and the sealing plate 1400 must be slippery, that is, to ensure the surface activity so as to improve the non-sticking property of the silicon dioxide by blocking the adhesion of foreign substances upon air purging, do.

To this end, in the present invention, a reinforcing coating layer is further formed on outer surfaces of the air blowing case 1220 and the sealing plate 1400.

At this time, the reinforcing coating layer may be coated by a known coating method such as a spray method.

This reinforcing coating layer comprised 2.5% by weight of a water-soluble acrylic-modified urethane-alkyd resin, 3.0% by weight of zinc (Zn (NO ₃ ) ₂ .6H ₂ O), 2.5% by weight of 1-chloro-2,3- 2.5% by weight of methyltrimethoxysilane, 3.5% by weight of an allophane powder having a particle size of less than 0.1 μm, 5.5% by weight of a resin solution having a polyurethane resin aqueous with decyl ether, and CH ₃ COONa and 3H ₂ O) 4.0% by weight, and 2.0% by weight formic acid, and with the zirconium oxide powder having a particle size of less than 6.0% 0.1㎛, thiocyanate copper 5.0 wt%, MEHEC (methylethylhydroxyethylcelluloe) 2.5% by weight , 8.5 wt% of a resin-silica composite, and the rest of the polycarbonate resin.

Here, the water-soluble acrylic-modified urethane-alkyd resin is added in order to impart adhesiveness to enhance adhesion with a material and to exhibit super water repellency.

In addition, zinc sulfate is added to enhance thermal stability by increasing the heat retaining force due to the formation of eutectic points. 1-Chloro-2,3-epoxypropane is a chlorine-based material having high reactivity and is used for stabilizing the reaction of the composition And methyltrimethoxysilane is added to enhance durability by enhancing the bonding force between emulsified materials by hydrophobicity.

In addition, alophene powder is a clay mineral generated from the weathering process of volcanic ash, which is an exceptionally amorphous clay powder which has no crystal structure and is added to enhance the VOC abatement effect. The resin liquid in which the polyurethane resin is decolorized with ether It is used to maintain adhesion and weatherability.

In addition, sodium acetate is added to enhance durability and heat resistance by strengthening the heat retention due to eutectic point formation, and formic acid is prepared by adding glycerin to the acid, .

The zirconium oxide powder is an amorphous white powder which is added as a kind of ceramics having a melting point of 2.677 캜, a density of 5.6 g / cm ³ and a Mohs hardness of 7 in order to increase the hardness and to strengthen the wear resistance, and the thiocyan copper is added to the copper- , And MEHEC (methylethylhydroxyethylcellulose) is added as a cellulose derivative composed of anhydrous glucoside monomer chain to enhance surface activity and chemical resistance.

In addition, the resin-silica composite is heated at a temperature of 600-800 ° C. in a state in which the colloidal silica and the acrylic polymer are immersed in a mixture of the acrylic polymer and the acrylic polymer in a weight ratio of 1: 1, To have a resin-silica composite form according to condensation.

At this time, the condensation reaction is carried out as follows, and the film adhesion and the texture density are drastically improved.

[Colloidal silica: - (HO-Si-OH-) n]

[Acrylic polymer: CH2CCH3CO-OH]

[- (HO-Si-OH- ) n + CH2CCH3CO-OH = - (HO-Si-O-CH2CCH3CO) - n + H 2 O]

In addition, the polycarbonate resin is added for high transparency and high hardness, strength maintenance and durability improvement.

A sample having such a coating layer was prepared, and water resistance was first tested to confirm the surface condition.

In the water resistance test, the sample pipe was immersed in a constant temperature water bath (60 ° C.), and the surface state was checked in units of 500 hours. As a result, no microscopic whitening, cracks, or white rust occurred.

In order to confirm the heat stability, the sample pipe was placed in a beaker, sealed (60 ° C), left in a dry oven for 5 days, and the state was measured. As a result, there was no surface reaction such as gelation.

In addition, to confirm the corrosion resistance, the sample pipe was tested according to KS-D-9502 (standard 240 hr) salt spray test method, and the result was good without occurrence of white rust.

In addition, in the present invention, as shown in FIG. 15, a charging unit 2000 may further be provided on a side surface of the air blowing case 1220 so as to supply silicon dioxide in a fixed amount.

The feeding unit 2000 includes a feeding funnel 2100, a feeding cylinder 2200 connected to the lower end of the feeding funnel 2100 and a feed motor 2300 installed in a space defined in one side of the feeding cylinder 2200 A conveying screw 2400 connected to the conveying motor 2300 and arranged in the conveying cylinder 2200, a discharge hole 2500 formed in the bottom surface of the end of the conveying cylinder 2200, A discharge cylinder 2700 for driving the discharge cylinder 2700 and a discharge cylinder 2700 connected to the end of the transfer cylinder 2200 for fixing the discharge cylinder 2800, And a discharge guide 2600 disposed at a lower portion of the discharge hole 2500 and connected to the discharge port 1250.

Therefore, if the silicon dioxide powder is poured into the input funnel 2100, the transfer screw 2400 driven by the transfer motor 2300 moves the charged silicon dioxide powder to the discharge hole 2500, and the discharge cylinder 2800 And operates in accordance with the control signal of the system control unit to open and close the discharge plate 2700 and supply the supplied silicon dioxide powder to the inlet 1250 in a fixed amount.

Thus, supply of the silicon dioxide powder can be smoothly performed.

In addition, the filtered fine particles including the silicon dioxide powder separated and removed by the air purge are stored in the discharge tray 3000 as shown in FIG. 16, and the discharge collected in the discharge tray 3000 is discharged to the discharge finishing pump 3000. [ And is transferred to the hydrocyclone 3200 through the pipe 3100.

At this time, the hydrocyclone 3200 receives a discharge of the foreign substance mixture, and separates the silicon dioxide powder and the fine foreign substance by the specific gravity difference in a cyclone manner.

In this case, the relatively light microscopic particles float up to the upper part of the hydrocyclone 3200, are discharged and collected by the foreign matter collecting part 3300, and the relatively heavier silicon dioxide powder SI falls downward And then supplied again to the charging port 1250 through the metering pump 3400 to be reused.

Here, the metering pump 3400 is a known pump for supplying a metered amount.

In addition, the discharge tray 3000, the hydrocyclone 3200, and the pumps are installed under the air blowing case 1220 in a miniaturized state, and since the discharged air is not large in quantity, .

In addition, in the case of the air purge unit 1500, the spray hole 1520 of the nozzle unit 1510 (refer to FIG. 14) is clogged by the reverse flow of the silicon dioxide powder due to the back pressure at the time of purging, In order to prevent such a phenomenon, the nozzle unit 1510 may be modified as shown in FIG. 17 so as to perform a diaphragm function.

For example, according to FIG. 17, the nozzle unit 1510 is formed in a cylindrical shape, and a lower portion of the nozzle unit 1510 includes a connection portion 1530 having a larger diameter than the nozzle unit 1510.

At this time, the connection portion 1530 is a portion where a connection pipe connected to the air supply source is connected.

A coupling portion 1540 in which a spray hole 1520 is not formed is formed at a boundary between the nozzle portion 1510 and the connection portion 1530. A cylindrical rubber tube 1550 is formed in the nozzle portion 1510, And a clamp 1560 for fixing a part of the lower end of the rubber tube 1550 is fixed to the coupling portion 1540.

In particular, a circumferential groove 1512 having a diameter smaller than that of the nozzle unit 1510 is formed at the front end of the nozzle unit 1510, and the nozzle unit 1510 The diameter of the dispersed guide plate 1514 is relatively large.

In addition, the boundary between the peripheral groove 1512 and the dispersed guide plate 1514 is formed to have an inclined surface as shown in the drawing.

When the high pressure air is supplied through the connection part 1530, the rubber tube 1550 is swollen to open the spray hole 1520. At this time, the spray hole 1520 is formed in the periphery of the nozzle part 1510 The rubber tube 1550 is urged only in a direction perpendicular to the circumferential surface of the nozzle unit 1510 and swells up.

When the rubber tube 1550 is inflated to open the injection hole 1520, the air discharged through the injection hole 1520 is pushed against the inside of the rubber tube 1550 and discharged forward.

In addition, since the lower end of the rubber tube 1550 is bound by the clamp 1560, the rubber tube 1550 does not move and remains fixed.

The rubber tube 1550 is temporarily contracted to seal the injection hole 1520, so that even if backflow of the silicon dioxide powder due to the back pressure occurs, the rubber tube 1550 can not move toward the injection hole 1520 and the rubber tube 1550 ), The clogging of the spray hole 1520 due to the fixing can be completely solved.

Particularly, since the end of the rubber tube 1550 is installed so as not to seal the peripheral groove 1512, the ejected air is radially ejected while being rotated on the peripheral groove 1512. In addition, the dispersed guide plate 1514 So that they can be dispersed as they rise above it, so that it is possible to supply smooth dispersion.

A: Target point B: Reference point
C: auxiliary measurement point 10: target
20: first measuring device 30: second measuring device

Claims

The distance L1 from the reference point B to the target point A and the azimuth angle L1 from the reference point B to the target point A in a state in which the target point A as the location of the underground facilities in the reference point B is obscured by the building 3 or the structure the target 10 is set at the target point A and the auxiliary point C is set separately from the target point A and the reference point B so that the auxiliary point can be measured and measured, A first measuring apparatus 20 installed at a point C and a second measuring apparatus 30 installed at the reference point B;
The target 10 is provided with a retroreflector 11 and the first measuring device 20 is provided with a support 21 and a support member 21 which is provided on the support 21, (3) from the auxiliary measurement point (C) to the target point (A), which is provided on the support base (21) And a retroreflector (24) provided on a circumferential surface of the support base (21);
The second measuring apparatus 30 includes a support base 31 and a light wavefront measuring unit 32 for measuring a distance L2 from the reference point B to the auxiliary surveying point C, (33) for measuring an azimuth (? 2) from the reference point (B) to the auxiliary survey point (C);
The distance L3 from the auxiliary measurement point C to the target point A and the azimuth angle 3 are measured using the first measurement apparatus 20 and the second measurement apparatus 30 is used 2 from the reference point B to calculate the distance L2 and the azimuth angle 2 from the reference point B to calculate the distance L1 from the reference point B to the target point A and the azimuth angle? (? 1);
The distance L3 measured by the optical wavefront / near-field source 22 and the electronic seedlolight 23 and the azimuth angle and a wireless transceiver 34 provided in the second measuring apparatus 30 for receiving the distance L3 and azimuth angle? 3 wirelessly output from the wireless transmitter 25 (35) connected to the optical wavefront detector (32) of the second measuring apparatus (30) and the electronic caludolite (33) and the wireless receiver (34) In an underground facility position surveying system using a triangulation technique configured to display in real time the distance L1 and the azimuth angle? 1 from the calculated reference point B to the target point A connected to the display means 35a ;
A wireless communication module 1010 that wirelessly communicates with the wireless transceiver 34 and receives survey information, a view image DB 1020 that stores or updates image information required for viewing, And a location display module (1030) for displaying a survey image according to the survey information, and displaying the survey information;
The illustration server 1000 includes a housing 1200 and modules including the wireless communication module 1010, the illustrated image DB 1020 and the location display module 1030 are installed in the housing 1200, Lt; / RTI >
The enclosure 1200 is formed in a rectangular box shape and a door DR capable of being opened and closed is installed on a front surface of the enclosure 1200 and air blowing units 1210 are provided on both sides of the enclosure 1200;
The air blowing unit 1210 includes an air blowing case 1220. The air blowing unit 1220 has an air outlet OUT formed on the upper side thereof and an air inlet IN formed on the lower side thereof. The inlet guide 1240 is divided by the partition 1230 so that the outlet OUT does not communicate with the lower space and the inlet guide 1240 is arranged at an interval below the partition 1230, And an inlet 1250 for introducing silicon dioxide constituting a pore filter is formed on the one side of the inlet guide 1240. The inlet 1250 is sealed by an inlet door 1260 that can be opened and closed, The end of the feed hopper 1270 is disposed at the upper end of the feed hopper 1270. The feed hopper 1270 is communicated with one side of the screw feeder 1280 so that the powdered silicon dioxide moves on the feed guide 1240, (1270) to the screw feeder (1280) Type filter 1290 is provided on the lower side of the inlet IN and the particle size of the silicon dioxide powder SI is formed larger than the inter-ring gap of the ring type filter 1290, The ring type filter 1290 is fitted in the fixture 1300. The fixture 1300 is screwed to the inner wall surface of the air blowing case 1220 and is fixed to the inner surface of the air blowing case 1220 A filtration air supply hole 1310 is formed at a lower side of the side where the inlet port 1250 is formed and the filtration air supply hole 1310 is communicated with the inside of the housing 1200 through a supply pipe 1320, And a lower plate 1330 is installed below the ring-type filter 1290;
A charging unit 2000 is further provided on a side surface of the air blowing case 1220 to supply a predetermined amount of silicon dioxide powder and the charging unit 2000 is connected to the charging funnel 2100 and the lower end of the charging funnel 2100 A conveying motor 2300 installed in a space partitioned at one side of the conveying cylinder 2200 and a conveying screw 2400 connected to the conveying motor 2300 and arranged in the conveying cylinder 2200, A discharge port 2500 formed at the bottom surface of the end portion of the transfer cylinder 2200 and a discharge port 2700 for opening and closing the discharge port 2500 in a fixed amount, A fixing bracket 2900 coupled to an end of the transfer cylinder 2200 to fix the discharge cylinder 2800 and a fixing bracket 2900 disposed at a lower portion of the discharge hole 2500 and connected to the inlet 1250 And a discharge guide 2600;
The filtered fine particles including the silicon dioxide powder separated and removed by air purge are stored in the discharge tray 3000 and the discharged fractions collected in the discharge tray 3000 are discharged through the discharge finishing pump 3100 into the hydro- And the hydrocyclone 3200 receives the discharge of the foreign material mixture and separates the silicon dioxide powder and the fine particles by the specific gravity difference in the cyclone manner and the upper part of the hydrocyclone 3200 The silicon dioxide powder SI dropped to the lower portion of the hydrocyclone 3200 is supplied to the inlet 1250 through the metering pump 3400 &Lt; / RTI >
The air purge unit 1500 for purifying air includes a cylindrical nozzle unit 1510 having a plurality of spray holes 1520 and a connection unit 1530 having a larger diameter than the nozzle unit 1510 ; A binding portion 1540 in which a spray hole 1520 is not formed is formed at a boundary between the nozzle portion 1510 and the connection portion 1530; A cylindrical rubber tube 1550 is fitted to the nozzle unit 1510; A clamp 1560 for fixing a part of the lower end of the rubber tube 1550 is installed in the coupling part 1540; A circumferential groove 1512 having a diameter smaller than that of the nozzle unit 1510 is formed at the tip of the nozzle unit 1510. A tip end of the nozzle unit 1510 passes through the circumferential groove 1512, And the boundary between the circumferential groove 1512 and the dispersed guide plate 1514 is formed of an inclined surface. The underground facility location surveying system using the triangulation technique is characterized in that a dispersed guide plate 1514 having a relatively larger diameter is formed, .