KR20240010870A - measurement system of horizontal displacement by depth of ground - Google Patents

Abstract

The present invention relates to a real-time measurement system for horizontal displacement according to the depth of the ground, which is installed to enter the ground from the ground and has a hollow buried tube, which is installed to be spaced apart from each other according to the depth of the ground within the buried tube to detect the tilt. unit sensing modules that generate and transmit tilt information to the collection address, and tilt information by underground depth is collected from each of the unit sensing modules, or by using the collected tilt information by underground depth, It is provided with a local collection processing unit that calculates the horizontal movement displacement. This real-time measurement system for horizontal displacement by ground depth provides the advantage of being able to calculate and provide horizontal displacement by ground depth in real time.

Description

Real-time measurement system of horizontal displacement by depth of ground}

The present invention relates to a real-time measurement system for horizontal displacement according to the depth of the ground. In detail, the present invention relates to a system for calculating and providing horizontal displacement using information received from unit sensing modules that are installed spaced apart from each other in a buried tube and provide tilt information. This relates to a real-time measurement system for horizontal displacement by ground depth.

In general, facilities located in cuts due to road construction or on steep slopes are greatly affected by even small changes in the surrounding environment and are prone to landslides or collapses.

Therefore, in order to prevent accidents due to ground subsidence or collapse of temporary walls when performing excavation work, fill construction, etc. and to perform safety diagnosis on the ground, the slope of the ground, specifically the change in ground slope, must be measured. There is a need. For this purpose, a smart underground inclinometer that measures the underground slope by drilling a hole in the ground to a predetermined depth and inserting and placing an underground slope measuring device into the drilled part created by this process has been registered in Korea Patent No. 10-1766761. It is illustrated.

However, these underground inclinometers have the disadvantage of requiring the measurer to perform the measurement process by inserting a sensor probe into the excavated measurement pipe each time, and the inability to receive information on changes in underground slope in real time.

The present invention was created to improve the above-mentioned problems, and measures horizontal displacement using information received in real time from unit sensing modules that are installed spaced apart from each other in a buried tube installed in the ground and provide tilt information. The purpose is to provide a real-time measurement system for horizontal displacement by calculated and provided ground depth.

In order to achieve the above object, the real-time measurement system for horizontal displacement according to the depth of the ground according to the present invention includes a buried tube installed to enter the ground from the ground and having a hollow; Unit sensing modules installed within the buried tube to be spaced apart from each other according to the depth of the ground to detect tilt, generate detected tilt information, and transmit it to a collection address; A local collection and processing unit that collects tilt information for each underground depth from each of the unit sensing modules or calculates a horizontal movement displacement corresponding to the unit sensing module mounting position using the collected tilt information for each underground depth. .

According to one aspect of the present invention, the buried tube is inserted into the inner peripheral surface in the direction in which the inner diameter is expanded, and four rail grooves extending along the longitudinal direction are formed at 90-degree intervals, and are inserted into the two opposing inlet grooves. and a tee-shaped board having a support portion fitted into an inlet groove provided between a first plate-shaped portion formed in a plate shape and an inlet groove extending in a direction perpendicular to the middle of the first plate-shaped portion and into which the first plate-shaped portion is inserted. Provided, the unit sensing modules are fixedly coupled at set intervals to the other side of the T-type board, which is opposite to one side of the first plate-shaped portion where the support portion is formed, and the unit sensing modules support power supply and data transmission and reception between the unit sensing modules. are connected in series through a cable, and the cable extending upward from the unit sensing module located at the top of the embedded tube is provided with a first connector that supports mutual serial connection, and is located at the bottom of the embedded tube. The cable extending downward from the unit sensing module is provided with a second connector to support connection with the first connector, and the space between the first plate-shaped portion and the buried tube is filled with a filler that can prevent moisture from penetrating. It is filled with

In addition, the buried tube is made of ABS (Acrylonitrile Butadiene Styrene) resin that allows bending.

In addition, the cable has two power lines, at least two data lines, and an optical fiber built into the covering portion, and the local collection processing unit includes a light source that emits light; an optical circulator that receives light emitted from the light source through an input terminal and outputs it to an output terminal, and outputs the light received from the output terminal to a detection terminal; a light detection unit that detects light output from the detection stage; Control the operation of the light source, measure the bending state of the T-type board at each position using the signal output from the light detector, and perform the unit sensing using tilt information for each underground depth collected from each of the unit sensing modules. and a local collection processing unit that generates the horizontal movement displacement calculated corresponding to the module mounting position as displacement measurement information along with the bending state information and outputs it through an output unit.

Preferably, the local collection processing unit processes the generated displacement measurement information to be output through the local collection and communication unit, records the displacement measurement information received through the local collection and communication unit in a database, and the received displacement measurement information is an alarm condition. If applicable, a monitoring server that processes the alarm message to be output through an alarm device is further provided.

The real-time measurement system for horizontal displacement by ground depth according to the present invention provides the advantage of being able to calculate and provide horizontal displacement by ground depth in real time.

Figure 1 is a diagram showing a real-time measurement system for horizontal displacement by ground depth according to the present invention;
Figure 2 is an exploded perspective view showing some of the elements mounted in the buried tube of Figure 1 separated together;
Figure 3 is a cross-sectional view of the buried tube of Figure 1 with the unit sensing module installed;
Figure 4 is a detailed block diagram of a local collection and processing unit mounted on the top of the buried tube of Figure 1;
Figure 5 is a detailed block diagram of the unit sensing module of Figure 1.

Hereinafter, a real-time measurement system for horizontal displacement by ground depth according to a preferred embodiment of the present invention will be described in more detail with reference to the attached drawings.

Figure 1 is a diagram showing a real-time measurement system for horizontal displacement by ground depth according to the present invention, Figure 2 is an exploded perspective view showing some of the elements mounted in the buried tube of Figure 1 separated together, and Figure 3 is a It is a cross-sectional view of the buried tube of Figure 1 with the unit sensing module installed, and Figure 4 is a detailed block diagram of the local collection and processing unit mounted on the top of the buried tube of Figure 1.

Referring to Figures 1 to 4, the real-time horizontal displacement measurement system 100 for each depth of ground according to the present invention includes a buried tube 110, a T-type board 130, a unit sensing module 140, a cable 150, It is equipped with a local collection processing unit 170, a monitoring server 200, and a database (DB) 220.

The buried tube 110 is installed to enter the ground 20 from the ground 10 and is formed in the form of a tube with a hollow 112 penetrating upward and downward. The embedded tube 110 is made of Acrylonitrile Butadiene Styrene (ABS) resin, which allows bending by external force.

The buried tube 110 has four rail grooves 113 that are inserted into the inner circumferential surface in the direction in which the inner diameter expands and extend along the longitudinal direction at 90-degree intervals along the inner circumferential direction, and the outer diameter is expanded on the outer circumferential surface. Four coupling guide protrusions 114 are formed at intervals of 90 degrees (°) along the outer circumferential direction, protruding in the direction in which the coupling guide protrudes.

The rail groove 113 of the embedded tube 110 is partially used to guide the restraint installation of the tee-type board 130, which will be described later, and the coupling guide protrusion 114 connects the embedded tubes 110 to each other by the coupler 120. When interconnecting, it is used to guide the coupler 120 so that it can be slidably connected in a restrained state.

The coupler 120 has a hollow 122 so that the embedded tubes 110 can be coupled from the outside so that the hollow 112 communicates with each other, and an insertion guide groove (112) into which the coupling guide protrusion 114 can enter on the inner circumferential surface 123) is inserted in the direction in which the inner diameter expands, and four are formed at 90 degree (°) intervals along the inner circumference direction to extend along the longitudinal direction.

The coupler 120 is coupled to the embedded tube 110 by a coupling screw 125 entered through a through hole 124 formed on the outer peripheral surface in communication with the hollow 122, and the coupling through hole 124 is located in the longitudinal direction. It is formed in plural numbers spaced apart from each other along the line.

A closing cap (not shown) may be attached to the lower end of the buried tube 110 located at the bottom among the buried tubes 110 connected in series through the coupler 120 to close the hollow 112.

The T-type board 130 is applied to provide a mounting area for the unit sensing module 140, which will be described later, as well as to provide shape retention for the buried tube 110.

The T-type board 130 is inserted into the two opposing inlet grooves 113, has a first plate-shaped portion 131 formed in a plate shape, and extends in a direction perpendicular to the middle of the first plate-shaped portion 131 to form a first plate-shaped portion 131. It is structured to have a support portion 132 fitted into the inlet grooves 113 provided between the inlet grooves 113 into which the part 131 is inserted.

The unit sensing module 140 has a gap ( d), the module bodies 150a are fixedly coupled to be spaced apart from each other, detect the tilt, generate the detected tilt information, and transmit it to the collection address.

As shown in FIG. 5, the unit sensing module 140 includes a tilt sensor 141, a module processing unit 143, and a module communication unit 140 mounted on the module body 140a.

The tilt sensor 141 senses the tilt of the module body 140a with respect to the direction of gravity and provides the sensed tilt to the module processing unit 143. The tilt sensor 141 may be a variety of known sensors, such as a capacitive MEMS tilt sensor or a gyro sensor.

The module processing unit 143 provides the tilt value provided by the tilt sensor 141 to the local collection processing unit 170 through the module communication unit 145.

The module communication unit 140 is constructed to transmit signals through two data lines 153 built into the cable 150, and, unlike the example shown, uses a power line 151 built into the cable 150. Any communication method may be applied.

These unit sensing modules 140 are connected in series through a cable 150 that supports power supply and data transmission and reception.

The cable 150 includes two power lines 151 spaced apart from each other within the covering portion 151 that forms a shape and protects the internal elements, two data lines 153 spaced apart from each other, and one optical fiber ( 157) has a built-in structure.

Here, the power line 151 is connected to supply power to each unit sensing module 140, and the data line 153 is connected to transmit signals through the module communication unit 140.

The cable 150 is fixed with a fixing material at an appropriate detection position for each unit sensing module 140 so that deformation on the T-type board 130 can be detected through the optical fiber 157.

In addition, the optical fiber 157 is inserted into the center of the cable covering portion 151 at a position corresponding to the smallest thickness entry groove 151a to increase sensitivity to stretching due to deformation.

In addition, the cable 150 extending upward from the unit sensing module 140 located at the top of the buried tube 110 to support the connection of the cables 150 for each unit of the buried tube 110 supports mutual serial connection. A first connector (C1) (155) is provided, and the cable (150) extending downward from the unit sensing module (140) located at the bottom of the buried tube (110) has a second connector that supports connection to the first connector (155). Two connectors (C2) (156) are provided. Here, the first connector 155 and the second connector 156 have a male-female relationship with each other to support connection of the cable 150.

Meanwhile, the space between the first plate-shaped portion 131 and the buried tube 110 is filled with a filler 118 that can prevent moisture from penetrating. The filler 118 may be made of various known materials, such as epoxy material and silicone material.

The local collection and processing unit 170 collects tilt information for each underground depth from each of the unit sensing modules 140, or uses the collected tilt information for each underground depth to determine the horizontal movement displacement corresponding to the mounting position of the unit sensing module 140. Calculate .

Here, the horizontal movement displacement (ΔL) can be calculated using a trigonometric function for the tilt angle (θ) detected by the tilt change for one unit sensing module 140 in FIG. 1, and each unit sensing module 140 The horizontal movement displacement of the lower unit sensing modules 140 can be accumulated according to each mounting position to calculate the total horizontal movement displacement at that location.

The local collection and processing unit 170 is connected to the cable 150 through a second connector 156 corresponding to the first connector 155 mounted on the cable 150 of the uppermost unit sensing module 140.

The local collection and processing unit 170 includes a light source 171, an optical circulator 173, a light detection unit 175, a local collection and communication unit 177, and a local collection and processing unit 180.

The light source 171 emits light and a light emitting diode may be applied.

The optical circulator 173 receives the light emitted from the light source 171 through the input terminal 173a and outputs it to the output terminal 173b, and proceeds in reverse from the output terminal 173b to transmit the received light to the detection terminal 173c. Printed to

The output terminal of the optical circulator 173 is connected to the end of the optical fiber 157 extending through the cable 150.

The light detection unit 175 detects the light output from the detection stage 173c of the light circulator 173 and provides it to the local collection processing unit 180.

The local collection processing unit 180 controls the driving of the light source 171, and uses the signal output from the light detection unit 175 to detect the T-type board 130 from the Rayleigh scattered light information corresponding to the expansion and contraction of the optical fiber 157 due to bending. ) is measured for each position, and the horizontal movement displacement calculated corresponding to the unit sensing module mounting position is calculated using the tilt information for each underground depth collected from each of the unit sensing modules 140 along with the bending state information. Displacement measurement information is generated and transmitted to the monitoring server 200 through the local collection and communication unit 177 applied as the output unit.

The monitoring server 200 records the displacement measurement information received from the local collection and communication unit 177 through the communication network 190 in the database (DB) 220, and sends an alarm message if the received displacement measurement information meets an alarm condition. is processed to be output through an alarm device.

Additionally, the monitoring server 200 transmits an alarm message to a registered administrator terminal (not shown) when the received displacement measurement information meets an alarm condition.

Differently, the local collection processing unit 180 uses the signal output from the optical detection unit 175 to measure the bending state of the T-type board 130 at each location and the underground data collected from each of the unit sensing modules 140. Tilt information for each depth is generated as displacement measurement information and transmitted to the monitoring server 200 through the local collection and communication unit 177 applied as the output unit, and horizontal displacement information is provided using the tilt information and position information received from the monitoring server 200. Of course, it can be constructed to calculate .

Here, the local collection processing unit 180 uses the location-specific bending state information of the T-type board 130 calculated using the signal output from the optical detection unit 175 and compares it with the tilt information of the corresponding unit sensing module 140. The bending is measured, but if the bending information and tilt information are outside the allowable matching range, such as when the tilt is zero, the unit sensing module 140 is determined to be faulty and the unit sensing module 140's unique It can be constructed to generate fault information along with identification information and transmit it to the monitoring server 200.

The real-time measurement system for horizontal displacement by ground depth described above provides the advantage of being able to calculate and provide horizontal displacement by ground depth in real time.

110: Buried tube 130: T-type board
140: Unit sensing module 150: Cable
170: Local collection processing unit 200: Monitoring server

Claims (5)

a buried tube that is installed to enter the ground from the ground and has a hollow body;
Unit sensing modules installed within the buried tube to be spaced apart from each other according to the depth of the ground to detect tilt, generate detected tilt information, and transmit it to a collection address;
A local collection and processing unit that collects tilt information for each underground depth from each of the unit sensing modules or calculates a horizontal movement displacement corresponding to the unit sensing module mounting position using the collected tilt information for each underground depth. A real-time measurement system for horizontal displacement by ground depth, characterized by: The method of claim 1, wherein four rail grooves are formed on the inner circumferential surface of the buried tube in a direction in which the inner diameter expands and extending along the longitudinal direction at 90-degree intervals,
It is inserted into two opposite inlet grooves and is inserted into an inlet groove provided between a first plate-shaped part formed in a plate shape and an inlet groove extending in a direction perpendicular to the middle of the first plate-shaped part and into which the first plate-shaped part is inserted. It is further provided with a tee-type board having a support portion,
The unit sensing modules are fixedly coupled at set intervals to the other side of the T-type board, which is opposite to one side of the first plate-shaped portion on which the support portion is formed,
The unit sensing modules are connected in series through a cable that supports power supply and data transmission and reception, and the cable extending upward from the unit sensing module located at the top of the embedded tube is provided with a device that supports mutual serial connection. One connector is provided, and the cable extending downward from the unit sensing module located at the bottom of the embedded tube is provided with a second connector to support connection with the first connector, and the first plate-shaped portion and the embedded tube are provided. A real-time measurement system for horizontal displacement by ground depth, characterized in that the space between tubes is filled with a filler material that can prevent moisture infiltration. The real-time measurement system for horizontal displacement by ground depth according to claim 2, wherein the buried tube is made of ABS (Acrylonitrile Butadiene Styrene) resin that allows bending. The method of claim 2, wherein the cable
There are two power lines, at least two data lines, and optical fibers built inside the covering portion,
The local collection processing unit is
a light source that emits light;
an optical circulator that receives light emitted from the light source through an input terminal and outputs it to an output terminal, and outputs the light received from the output terminal to a detection terminal;
a light detection unit that detects light output from the detection stage;
Control the operation of the light source, measure the bending state of the T-type board at each position using the signal output from the light detector, and perform the unit sensing using tilt information for each underground depth collected from each of the unit sensing modules. A real-time measurement system for horizontal displacement by ground depth, comprising a local collection and processing unit that generates the horizontal movement displacement calculated corresponding to the module mounting position as displacement measurement information along with the bending state information and outputs it through an output unit. The method of claim 4, wherein the local collection processing unit processes the generated displacement measurement information to be output through the local collection communication unit,
A monitoring server that records the displacement measurement information received through the local collection and communication unit in a database, and processes an alarm message to be output through an alarm device when the received displacement measurement information meets an alarm condition. A real-time measurement system for horizontal displacement by ground depth.

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