KR101803603B1 - Sinkhole monitoring system with gps - Google Patents

Sinkhole monitoring system with gps Download PDF

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KR101803603B1
KR101803603B1 KR1020150098827A KR20150098827A KR101803603B1 KR 101803603 B1 KR101803603 B1 KR 101803603B1 KR 1020150098827 A KR1020150098827 A KR 1020150098827A KR 20150098827 A KR20150098827 A KR 20150098827A KR 101803603 B1 KR101803603 B1 KR 101803603B1
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terminal
data
measuring
tilt
change
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KR1020150098827A
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Korean (ko)
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KR20170007874A (en
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안일규
김남수
이석주
정종수
이상동
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주식회사 아이엔지아이에스
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
    • G01B21/32—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring the deformation in a solid
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
    • G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
    • G01S19/13—Receivers
    • G01S19/14—Receivers specially adapted for specific applications
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V9/00—Prospecting or detecting by methods not provided for in groups G01V1/00 - G01V8/00

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geophysics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Testing Or Calibration Of Command Recording Devices (AREA)
  • Position Fixing By Use Of Radio Waves (AREA)

Abstract

The present invention relates to a terrain change monitoring system for monitoring, detecting and predicting a change in terrain of a wide area earth, so that measures necessary for prevention of a disaster accident can be taken in advance.
A plurality of measurement devices distributed on each of the points for measuring changes in the ground angle so as to monitor the change of the terrain according to rising and falling of the respective points in real time and a terminal for collecting the coordinates and angular variation of each measuring device And an arithmetic unit connected to the terminal and equipped with an operation program and measuring a change in height of each point by using coordinate data and angular variation data of each measuring apparatus collected in the terminal.
Thus, it is possible to monitor the ground subsidence according to the change of the terrain of each point in real time, and it is convenient to use compared with the level surveying.

Description

{SINKHOLE MONITORING SYSTEM WITH GPS}

The present invention relates to a terrain change monitoring system for monitoring, detecting, and predicting a change in a terrain due to subsidence or the like, so that measures necessary for prevention of a disaster can be taken in advance.

To do this, a level survey can be performed. In the case of the level survey, the relative height of the other points is measured based on each point, and the entire terrain is measured.

In the case of a terrain change occurring in a wide area, it is common that the ground surface of a certain area forms a gentle slope and sinks concavely or convexly. Therefore, the change of the inclination angle of each point is measured, Or a method of monitoring the elevated state.

In the conventional leveling, a leveling method is generally used. In the case of the leveling, the relative height of other points is measured based on each point to measure the overall terrain. However, measurement is time-consuming and costly, and it is not sufficient to monitor real-time monitoring of the overall terrain changes that occur in a large area.

In addition, the general level measurement basically measures the height of each point of the terrain, builds basic data, measures the height of each point again, and calculates the height difference between the basic data and the newly measured data. It needs to be reduced.

On the other hand, Registration No. 766070 (Oct. 4, 2007) regarding a terrain change monitoring system using GPS is disclosed,

A housing 12 mounted on the support 11 so as to be rotatable in a horizontal direction and a housing 12 provided on the housing 12 and having a tilt value of the housing 12 And a memory 14a in which unique ID data are stored and is connected to the tilt sensing device 13 and stores the tilt value measured by the tilt sensing device 13 in a memory 14a A wireless transmission unit 15 connected to the measurement control unit 14 and wirelessly transmitting ID data and tilt value data output from the measurement control unit 14; An output terminal 16 connected to the housing 12 for outputting ID data, a measurement control panel 17 connected to the measurement control unit 14, an azimuth measuring device 18 provided in the housing 12, 12 and is operated by the control signal of the azimuth measuring device 18 to detect the tilt sensor 13 A plurality of measurement devices 10 spaced apart from the area to be measured, including a drive motor 19 for rotating the housing 12 so as to face the predetermined direction;

A GPS unit 22 provided in the case 21 for outputting coordinate data measured by measuring the coordinates and ID data output from the wireless transmitting unit 15 of each measuring apparatus 10; An input terminal 24 connected to the output terminal 16 of the measurement apparatus 10 and a GPS receiver 22 connected to the GPS receiver 22 and the wireless receiver 23, A terminal control unit 25 including a memory 25a storing ID data and coordinate data and tilt value data collected through the terminal 24 and a terminal control panel 26 connected to the terminal control unit 25 (20);

An arithmetic operation program 31 for calculating a change amount of the terrain based on the coordinate data and the slope value data of each of the measuring devices 10 is connected and communicably connected to the terminal control unit 25 of the terminal 20 An arithmetic unit 30 that receives the tilt value and coordinate data of each measuring device 10 stored in the memory 25a of the terminal control unit 25 and calculates and outputs the change of the terrain by using the arithmetic program 31, / RTI >

A coupling portion 10a to which the terminal 20 is detachably coupled is provided at one side of the support 11 of the measuring device 10.

According to the above-described configuration,

Since each measuring apparatus 10 measures the gradient change at each point and measures the entire topography change by using the indirect leveling method using the triangulation method, there is an advantage that the change of the topography can be monitored in real time even in a large area,

In addition, since only the tilt measuring device 10, the azimuth measuring device 18 and the driving motor 19 are provided in the measuring device 10, the cost of the device is low,

Conventionally, in order to calculate the terrain variation of each point, the elevation of each point of the actual terrain must be measured to calculate the variation of the height from the reference data. On the other hand, the terrain variation monitoring system according to the present invention, It is possible to directly measure the amount of change in height and output it as a graphic or a numerical value, so that it has a very convenient advantage.

As a solution to the problems described above,

In addition to real-time monitoring of subsidence due to topographic changes at each site,

To improve the caustic ratio provided by the entire system of the apparatus,

It is necessary to provide a system for directly measuring the change in height of each point and outputting it as a graphic or a numerical value.

In addition, it is necessary to acquire the information that can be reflected in the detection and identification of tilts caused by other external forces not related to the subsidence.

A housing 12 mounted on the support 11 so as to be rotatable in a horizontal direction and a housing 12 provided on the housing 12 and having a tilt value of the housing 12 And a memory 14a in which unique ID data are stored and is connected to the tilt sensing device 13 and stores the tilt value measured by the tilt sensing device 13 in a memory 14a A wireless transmission unit 15 connected to the measurement control unit 14 and wirelessly transmitting ID data and tilt value data output from the measurement control unit 14; An output terminal 16 connected to the housing 12 for outputting ID data, a measurement control panel 17 connected to the measurement control unit 14, an azimuth measuring device 18 provided in the housing 12, 12 and is operated by the control signal of the azimuth measuring device 18 to detect the tilt sensor 13 A plurality of measurement devices 10 spaced apart from the area to be measured and including a drive motor 19 for rotating the housing 12 so as to face a predetermined orientation;

A GPS unit 22 provided in the case 21 for outputting coordinate data measured by measuring the coordinates and ID data output from the wireless transmitting unit 15 of each measuring apparatus 10; An input terminal 24 connected to the output terminal 16 of the measurement apparatus 10 and a GPS receiver 22 connected to the GPS receiver 22 and the wireless receiver 23, A terminal control unit 25 including a memory 25a storing ID data and coordinate data and tilt value data collected through the terminal 24 and a terminal control panel 26 connected to the terminal control unit 25 (20);

A calculation program 31 for calculating a change amount of the terrain based on the coordinate data and the slope value data of each measuring apparatus 10 collected by each measuring apparatus 10 is mounted and the terminal control unit 25 receives the tilt value and coordinate data of each measuring device 10 stored in the memory 25a of the terminal control unit 25 and calculates the change of the terrain using the calculation program 31 (30) for outputting the resultant signal,

Wherein a coupling part (10a) for detachably connecting the terminal (20) is formed on one side of the support base (11) of the measuring device (10)

Provided is a ground settlement monitoring system using GPS which has a means for measuring a false tilt value.

According to the system and its components related to the present invention,

It is possible to monitor ground subsidence according to the change of terrain at each point in real time,

It is possible to monitor terrain change in real time even in a large area,

It improves the pseudo ratio by lowering the cost compared to the function provided by the entire system of the device,

It can directly measure the change in height of each point and output it as graphic or numerical value.

In addition, the intrinsic slope value can be obtained, thereby improving the reliability of the system.

1 is a configuration diagram of a terrestrial change monitoring system and a terminal using GPS.
2 is an exemplary diagram showing the operation of an operation program of the system.
FIG. 3A is a view illustrating a case where an intrinsic slope value is generated according to subsidence; FIG. FIG. 3B is a view showing an example of a case where a false tilt value is generated by the action of an external force; FIG.
FIG. 4A is an exemplary view showing a configuration in which a measuring device is equipped with a false tilt value detecting means; FIG. FIG. 4B is a view showing an example of a case where a false tilt value is generated by the action of an external force; FIG.
FIGS. 5A and 5B are exemplary views showing the operating states of the respective examples of FIG. 4; FIG.
FIGS. 6A and 6B are enlarged views of the false tilt value sensing means; FIG.

First, the background of the present invention will be described in detail with reference to FIGS. 1 and 2.

In Fig. 1, a plurality of measurement apparatuses 10 are arranged in a distributed manner to measure a tilt value of each point; A terminal 20 for collecting in real time the coordinates of each measuring device 10 and the tilt value data of each point measured by each measuring device 10; And a computing device (30) connected to the terminal (20) and calculating and outputting a topographic change using the coordinates and the slope values of the measuring devices (10) collected in the terminal (20)

The measuring apparatus 10 includes a support 11 fixed to the ground 1, a housing 12 mounted to the support 11 to be rotatable in a horizontal direction, A tilt sensing device 13 for measuring the tilt value of the tilt sensor 12 and a memory 14a for storing the unique ID data and is connected to the tilt sensing device 13, And a wireless transmission unit 15 for wirelessly transmitting ID data and tilt value data output from the measurement control unit 14 and connected to the measurement control unit 14, An output terminal 16 connected to the measurement control unit 14 and outputting ID data, a measurement control panel 17 connected to the measurement control unit 14, an azimuth measurement unit (18), and a controller (14) connected to the housing (12) and adapted to control signals of the azimuth measuring device The operation comprising: an inclination detecting device driving motor 19 to 13 rotates the housing 12 so as to face a predetermined direction, it is arranged spaced apart in the region to be measured.

The support base 11 is provided with a plurality of legs 11a on the lower side and is fixed to the ground 1 with an anchor bolt 11b or the like so that when the ground 1 is inclined, (1).

The housing 12 is rotatably mounted on the upper end of the support 11 via a bearing 12a and is rotated in the horizontal direction by the drive motor 19. [

The tilt sensing device 13 can measure the tilt of the measuring device 10 with respect to the vertical direction by disposing two tilt sensing sensors for sensing the tilt of the housing 12 in a direction perpendicular to the plane. At this time, the inclination sensor can measure the inclination of the housing 12 by measuring the movement of the fluid as the housing 12 is inclined or the inclination of the metal.

The measurement control unit 14 has a function of outputting the ID data stored in the memory 25a and the tilt value data of the measurement apparatus 10 measured by the tilt sensing apparatus 13 through the wireless transmission unit 15 at predetermined time intervals .

The output terminal 16 is connected to the input terminal 24 of the terminal 20 and transmits the ID data to the terminal 20.

The measurement control panel 17 is provided on the upper surface of the housing 12 and allows the user to operate the measurement control panel 17 to turn the measuring apparatus 10 on and off or to issue various commands to the measurement control section 14 Can be input.

The azimuth measuring device 18 measures the direction in which the tilt sensing device 13 mounted on the housing 12 and the housing 12 is disposed using an electronic compass.

The drive motor 19 is fixedly mounted inside the housing 12 and the drive shaft 19a is connected to the support base 11 by a gear 19b so that the housing 12 is rotated in accordance with the signal of the azimuth measurement device 18. [ So that the tilt sensor 13 mounted inside the housing 12 is adjusted to be directed in a certain direction.

At this time, the azimuth angle measuring device 18 provided in each measuring device 10 is configured such that all of the tilt detecting devices 13 provided in the respective measuring devices 10 are in the same direction, It is possible to measure how much the measuring device 10 is tilted in the directions of the north, south, east, and west with respect to the vertical line by using the tilt sensor 13 by rotating the housing 12 so that the tilt of the measuring device 10 can be accurately measured .

In addition, a coupling portion 10a, to which the terminal 20 is detachably coupled, is formed on one side of the support 11 of the measuring device 10. [ The coupling portion 10a is provided on one side of the upper surface of the housing 12 so that the user can operate the terminal 20 and the measuring device 10 in a state where the terminal 20 is coupled to the coupling portion 10a. The output terminal 16 is provided at one side of the coupling part 10a and when the terminal 20 is coupled to the coupling part 10a, the output terminal 16 and the input terminal 24 ) Are automatically interconnected.

At this time, when the user fixes the measuring apparatus 10 on the ground 1 and then turns on using the control panel 17, the measurement control unit 14 controls the tilt measuring apparatus 10, Measures the slope of the mobile terminal 10, transmits it to the terminal 20 as a basic measurement value, repeatedly measures the slope at predetermined time intervals, and transmits the measured slope to the terminal 20.

The terminal 20 includes a case 21, a GPS unit 22 provided in the case 21 for outputting coordinate data measured by measuring coordinates, A wireless receiver 23 for receiving ID data and tilt value data output from the GPS unit 22, an input terminal 24 connected to an output terminal 16 of the measurement device 10, And a memory 25a for storing the ID data and the coordinate data and the tilt value data collected through the wireless receiving unit 23 and the input terminal 24. The terminal control unit 25 is connected to the terminal control unit 25 And a terminal control panel 26.

The case 21 is composed of a synthetic resin material box detachably coupled to the coupling portion 10a of the measurement device 10. [

The GPS unit 22 measures a current position by measuring a relative position with respect to a satellite floating on a previously known geosynchronous orbit, The current position of the terminal 20 is measured to indirectly measure the position of the measuring apparatus 10 and the coordinate data of the measured position is output to the terminal control unit 25. [ At this time, the coordinate data measured by the GPS indicates the horizontal position of each measuring apparatus 10, and the data indicating the position in the vertical direction or the altitude is not included.

The input terminal 24 is exposed on the outer surface of the case 21 so that when the terminal 20 is coupled to the coupling portion 10a of the measuring device 10, And transmits the ID data output from the output terminal 16 to the terminal control unit 25. The terminal control unit 25 receives the ID data output from the output terminal 16,

The terminal control unit 25 converts the ID data and the coordinate data and the tilt value data of each measuring device 10 collected through the input terminal 24 and the receiving device into a DB and stores the data in the memory 25a, To the calculation device (30). The terminal control unit 25 of the measuring apparatus 10 continuously transmits the ID data and the slope value data of the measuring apparatus 10 through the transmitting apparatus so that the terminal control unit 25 can control the input terminal 24 The tilt value of each measuring device 10 can be updated continuously. At this time, the tilt value data of the measurement value can be updated by checking which measurement device 10 received the received tilt value data.

The computing device 30 uses a computer in which the computing program 31 is installed and is communicably connected to the terminal 20. The computing device 30 and the terminal 20 are each provided with a USB port so that the computing device 30 can be connected to the terminal control unit 25 of the terminal 20 via the USB line.

The arithmetic operation program 31 functions to calculate the amount of change of the terrain based on the coordinate data and the slope value data of each measuring device 10. [

Fig. 2 shows the operation of the arithmetic program 31, and illustrates a topographical change computing method when the ground surface 1 causes a terrain change in a planar state.

A plurality of measuring apparatuses 10 are distributed and installed on a ground surface 1 in a planar state and then coordinate data and slope data of each measuring apparatus 10 collected by the terminal 20, The calculation program 31 sets the virtual points a to e at the intermediate positions of the respective measuring apparatuses 10 as shown in Figure 2A, And calculates the horizontal distance from the measuring apparatus 10 to the virtual point.

2B, when the slope value of each measuring apparatus 10 is changed as the surface 1 is tilted, the calculation program 31 determines whether or not the value of (b , The height variation (h1, h2) between the virtual point and each measuring device 10 is calculated using the trigonometrical method, and as shown in Fig. 2B (c) (H1 + h2) of the measuring apparatus 10 by the height change amount of the measuring apparatus 10 and measures the overall terrain variation amount by using the height variation amount of the changed measuring apparatus 10 and outputs it to the monitor or the printer.

The terrain variation values measured using the thus calculated elevation change of each point are similar to those shown by the dotted line in Fig. C (the deformed terrain shape calculated by the arithmetic program 31) and the solid line (the deformed shape of the actual terrain) Do.

By measuring the change of the terrain in the X-axis direction and the Y-axis direction in this way, it is possible to measure the terrain variation in three dimensions.

On the other hand, in the case of measuring the change of the topography of the curved surface instead of the plane, the calculation program 31 uses the above-described method to calculate the height variation of each part of the ground 1 .

Next, the operation of the above-described configuration will be described.

A plurality of measurement apparatuses 10 are distributed and fixed in an area where a user wishes to measure a change in the terrain and then the measurement control apparatus 10 of the measurement apparatus 10 is operated to turn on the measurement apparatus 10, (10) outputs ID data and tilt value data of the measuring device (10) via the wireless transmitting section (15) and the output terminal (16). At this time, each of the measuring devices 10 is controlled by the azimuth measuring device 18 and the driving motor 19 so that the measurement directions of the tilt sensing devices 13 of the respective measuring devices 10 are all the same (in the case of this embodiment , The east-west direction and the north-south direction).

When the user inputs a control signal to the terminal control unit 25 of the terminal 20 after connecting the terminal 20 to the coupling unit 10a of the measurement apparatus 10, The coordinate data output from the GPS unit 22 and the tilt value data transmitted through the transmitting apparatus of the measuring apparatus 10 are received and stored in the memory 25a, In the DB of each measurement device 10 by ID. At this time, the terminal 20 measures the coordinates using the GPS unit 22 in a state of being coupled to the coupling portion 10a of the measurement device 10, so that the coordinates of the measurement device 10 to which the terminal 20 is coupled Is indirectly measured.

The user collects coordinate data and tilt value data for each ID of each measuring apparatus 10 by sequentially connecting the terminals 20 to all the measuring apparatuses 10 and then transmits the terminal 20 to the calculating apparatus 30. [ The arithmetic unit 30 receives the coordinate data and the slope value data of each measuring apparatus 10 stored in the DB of the terminal 20 and calculates the coordinate value of the point where each measuring apparatus 10 is installed and the slope value Is set as a reference value and stored in a primary storage.

When the ID data and the slope value data are continuously transmitted from the respective measuring apparatuses 10, the terminal 20 receives the ID data and the slope value data, updates the slope value data of each measuring apparatus 10, When a change occurs in the value data, the arithmetic unit 30 calculates the change in height of the point where the measuring apparatus 10 is installed by using the arithmetic program 31, and outputs the change in the value or the graph through the monitor or the printer Therefore, it is possible to confirm the change of elevation of each point and change of terrain according to real time.

The background art described above is such that the measurement apparatus 10 is accurately fixed to the ground 1 and the base slope value a1 initially set is equal to the ground surface 1 as shown in Figs. 1 and 3A, Is effective only when the intrinsic slope value (a2) that accurately reflects the slope change along the paper surface (1) is guaranteed when the slope change of the paper (1) occurs.

As shown in FIG. 3B, various external forces such as wind and an impact of an object act on the measurement apparatus 10 at an actual outdoor site, and accordingly, when time elapses, So that the base slope value a1 is set to be different and the base slope value a3 must be obtained. In this case, correct measurement becomes impossible and errors and errors occur.

Therefore, the false tilt value detecting means 40 is required, and the example of FIG. 4 and FIG. 5 is.

In Fig. 4A, the laser point 42 arranged to face the paper 1 is fixedly installed in the measuring apparatus 10. [0053] Fig. Generally, the laser point is provided to emit a beam of a laser beam. The laser point 42 is fixed to a fixing plate 41 fixed to the bottom of the measuring apparatus 10 by screws, riveting, welding or the like, and the laser point 42 is fixed to the fixing plate 41 And an optical sensor 43 for detecting the reflected light when the reflected laser beam is reflected.

A reflector 45 as a target of the laser point 42 is firmly fixed to the paper 1 under the laser point 42 through a fixing pin 44 so as not to move on the paper surface 1. The reflector 45 may be provided as a metal mirror or the like having a high reflectance.

5A, the incident light b1 of the laser beam originating from the laser point 42 is reflected on the reflector 45 so as to be initially set to reach the optical sensor 43. As shown in FIG.

After the installation and setting described above, as shown in Fig. 4B, another external force not related to the change in the terrain due to the settlement of the ground surface 1 acts on the measuring device 10 and tilts the base tilt value a1 The incident light b1 deviates from the normal reflection point of the reflector 45 as shown in the example of Fig. 5B, when the incident light b1 has a tentative slope value a3 which is not related to the actual tilt of the paper 1 The reflected light b3 can not be reflected or the reflected light b3 deviates from the optical sensor 43 to reach the designated sensor point, which is referred to as an abnormal state.

The optical sensor 43 is connected to the measurement control unit 14 to transmit the information of the abnormal state through the wireless transmitting unit 15 to be wirelessly transmitted and received by the wireless receiving unit 23 of the terminal 20 . The user can receive the information of the abnormal state through the terminal 20 to grasp the situation of the site or take necessary measures.

6A and 6B, it is possible to detect the position of the reflected light b3 by widening the photosensitive area of the photosensor 43. When the position of the reflected light b3 deviates from the position of the reflected light b3, The degree of the false-slope value b3 can be calculated. Such calculation is omitted because it can be performed through a normal computer operation process.

The intrinsic slope value can be obtained by adding and subtracting the total inclination value and the false slope value detected by the inclination detecting device 13 by the arithmetic program 31 of the arithmetic unit 30.

10: measuring device 13: tilt detecting device
14: Measurement control unit 15: Wireless transmission unit
20: terminal 23: wireless receiver
30: computing device 31: operation program
40: false tilt value detecting means 41: fixed plate
42: laser point 43: light sensor
44: fixing pin 45: reflector

Claims (1)

A tilt sensing device for measuring the tilt value of the housing; a memory for storing the unique ID data; a tilt sensor for measuring a tilt value measured by the tilt sensing device And an output terminal connected to the measurement control unit and outputting ID data, and an output terminal connected to the measurement control unit. The measurement control unit is connected to the measurement control unit, A plurality of measurement devices including a measurement control panel, an azimuth measuring device provided in the housing, and a driving motor for rotating the housing such that the tilt sensing device faces the azimuth sensing device in a predetermined direction in accordance with a control signal of the azimuth measuring device Are spaced apart from each other in the area to be measured,
A wireless receiver for receiving the ID data and the tilt value data outputted from the wireless transmitting unit of each measuring apparatus, a wireless receiving unit for receiving the ID data and the tilt value data outputted from the wireless transmitting unit of each measuring apparatus, A terminal control unit having an input terminal connected to the output terminal, a memory for storing the ID data and the coordinate data and the tilt value data collected through the GPS unit, the wireless receiving unit and the input terminal; A terminal,
A calculation program for calculating a change amount of the terrain based on the coordinate data and the slope value data of each measuring apparatus collected by each measuring apparatus is mounted and communicably connected to the terminal control unit of the terminal, And an arithmetic unit that receives the tilt value and the coordinate data of each of the measurement devices stored therein, calculates a change in the terrain using an operation program, and outputs the change,
A coupling part for detachably coupling the terminal is formed on one side of the support of the measuring device,
A system comprising means for measuring a false tilt value,
The measuring device 10 is provided with a laser point 42 arranged to face the paper 1 and to emit a beam of laser beams and the laser point 42 is fixed to the bottom of the measuring device 10 The fixing plate 41 is provided with a light sensor 43 for detecting the reflected light when the laser beam emitted from the laser point 42 is reflected and returned to the fixing plate 41,
A reflector 45 serving as a target of the laser point 42 is installed on the ground 1 below the laser point 42. The reflector 45 is fixed to the ground 1 ),
Initially, the incident light b1 of the laser beam originating from the laser point 42 is reflected by the reflector 45 and is set to reach the optical sensor 43,
Thereafter, the measuring apparatus 10 is inclined by the action of another external force not related to the change of the terrain due to the settlement of the ground 1, so that the measurement of the ground inclination value a1 In the case of having a false tilt value a3,
The reflected light b3 may be out of the optical sensor 43 and may not reach the designated sensor point because the incident light b1 is out of the normal reflection point of the reflector 45, State,
The optical sensor 43 is connected to the measurement control unit 14 to transmit the information of the abnormal state through the wireless transmitting unit 15 and received by the wireless receiving unit 23 of the terminal 20,
Wherein the user is provided to receive the information of the abnormal state through the terminal (20) and to grasp the situation of the site or to take necessary measures.
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KR102232918B1 (en) * 2020-10-30 2021-03-26 재단법인 경북아이티융합 산업기술원 Subsidence sensor of real-time artificial intelligence based building condition diagnosis system

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