KR102454980B1 - Underground level inclinometer system - Google Patents

Abstract

The present invention relates to an underground horizontal inclinometer system capable of identifying the status with a high precision, which comprises: an underground horizontal inclinometer device for measuring the underground inclination; and a database server receiving and storing data from the underground horizontal inclinometer device. Specifically, the underground horizontal inclinometer device for measuring the underground inclination comprises: a transport unit for elevating or lowering a probe including a measuring sensor vertically in a drilled hole - the transport unit includes a cable and the cable has clamps installed at regular intervals, and an end unit of the cable is connected to an end unit of the probe; a control unit controlling the operation of the transport unit and simultaneously determining and making data out of the inclination in accordance with the depth based on the data measured by the measuring sensor; and a clamp photographing unit photographing the clamps installed on the cable. The control unit is configured to control the position of the probe within the drilled hole by using the clamp images photographed by the clamp photographing unit.

Description

UNDERGROUND LEVEL INCLINOMETER SYSTEM

The present invention relates to an underground horizontal inclinometer system, and to an underground horizontal inclinometer system capable of automatically transferring a measurement sensor of an underground horizontal inclinometer to an accurate position and performing measurement at an accurate position.

In general, in civil engineering processes such as building construction or ground construction, measurement is performed to collect various types of data to ensure safety of construction and to enable efficient work. In such data measurement and management, for example, the state of factors that are difficult to accurately grasp in the planning and design stage of civil works, such as earth pressure or stress coefficient, are identified as data using various measuring devices, and the measured data This is to perform safe, efficient and economical construction by comparing and examining design data in the construction process such as excavation of the ground to predict the behavior.

Because it is very important to measure the horizontal displacement of the ground around excavated parts, slopes, dams, etc. due to natural or artificial influences, In order to measure the slope change, an inclinometer is essential.

In general, when the foundation construction of a building such as an apartment or high-rise building is carried out, a certain interval (for example, 30m interval) is placed around the construction site of the building as part of measuring the subsidence of the ground, and the depth is 50m/100m. The inclinometer pipe is buried, and a probe connected with a cable is inserted along the buried inclinometer pipe to measure the subsidence deformation of the inclinometer pipe, which is subsided according to the subsidence of the surrounding ground.

These probes are raised/lowered while the wheel rotates along the guide groove formed along the longitudinal direction of the inclinometer tube, and the probe is installed at the end of the cable wound on the cable reel, It is configured to install a sensor, and periodically measure the inclination value according to the subsidence of the inclinometer tube by the inclinometer sensor.

Korean Patent Registration No. 10-1020125 discloses an automatic geoinclinometer measuring sensor device. According to the patent document, a rotary encoder for generating a pulse signal for detecting the number of rotations of the driving wheel of the probe, and a connector for providing a pulse signal of the rotary encoder to a signal conversion device in the form of a serial communication signal, the signal The conversion device generates a rising/falling depth sensing signal by calculating the number of pulses for the pulse signal from the rotary encoder and determining whether the probe is rising/falling.

In the case of such an automatic terrestrial inclinometer, it is necessary to repeatedly measure the same section at an accurate location over several months to years. Therefore, there is a problem in that accurate distance measurement is difficult due to bending (irregularities) of the connection part of the guide hole, cable slip caused by water, oil, etc., earthquakes, and low-frequency vibrations caused by vehicles.

In addition, in the case of the conventional automatic underground inclinometer device, there is a problem that it is difficult to monitor an urgent dangerous state and it is difficult to visually check the field state because the measurement is performed only at a predetermined interval even when the measured value is excessive.

Republic of Korea Patent Publication No. 10-1020125 (February 28, 2011)

An object of the present invention is to provide an underground horizontal inclinometer system that can automatically and accurately determine the elevation and descent depth of a probe or measurement sensor coupled to the end of the cable of the underground horizontal inclinometer, and also improve the measurement accuracy.

According to one aspect of the present invention in order to solve the above problems, there is provided an underground horizontal inclinometer device for measuring the inclination of the ground, the underground horizontal inclinometer device, the probe including the measurement sensor up and down in the drilled hole a conveying unit for raising or lowering in the direction, wherein the conveying unit includes a cable, the cable is provided with clamps at regular intervals, and the end of the cable is connected to the end of the probe; a control unit for controlling the operation of the transfer unit and at the same time determining the inclination according to the depth based on the data measured from the measurement sensor and converting it into data; and a clamp photographing unit for photographing the clamp installed on the cable, wherein the control unit is configured to control the position of the probe in the perforated hole using the clamp image photographed by the clamp photographing unit.

In the above aspect, the conveying unit includes: a cable drum on which a cable is wound; and a drive motor installed in the center of the cable drum and operated to rotate the cable drum, wherein the cable is unwound from the cable drum or wound around the cable drum depending on the rotational direction of the drive motor so that the probe coupled to the end of the cable is Positioned within the drilled hole.

Also in any one of the above aspects, it is preferable that the underground horizontal inclinometer device further includes an external photographing unit for photographing the surrounding environment in which the underground horizontal inclinometer device is installed.

Also, in any one of the above aspects, the control unit is configured to generate a virtual reference line in the image, stop the transfer unit when the clamp photographed by the clamp photographing unit matches the virtual reference line, and cause the measurement sensor to measure the inclination. .

Further, in any one of the above-described aspects, the control unit is configured to perform vibration monitoring to prevent generation of an error due to vibration, and is configured to cause the measurement sensor to perform inclination measurement when the vibration is less than or equal to a reference value.

Also, in any one of the above-described aspects, the control unit stores the initially measured inclination value as an initial value, compares the subsequently measured inclination value with the initial value to determine the displacement amount, and when the calculated displacement exceeds the management standard, reload configured to perform a measurement operation.

Also in any one of the above-described aspects, the re-measurement operation is performed with one additional measurement performed when the primary control criterion is exceeded, and a half time interval of the measurement time interval after one additional measurement when the secondary control criterion is exceeded. The measurement is carried out with the tertiary control standard, and if the tertiary control criterion is exceeded, the measurement is continuously performed.

According to the present invention, by photographing the clamp installed on the cable and aligning the position with the reference line of the image, the depth of the elevation and descent of the probe or measurement sensor coupled to the end of the cable of the underground horizontal inclinometer can be grasped with high precision.

In addition, according to the present invention, it is possible to minimize the error of the accumulated change by monitoring the vibration during measurement and excluding data greater than or equal to the reference value.

In addition, according to the present invention, as the re-measurement operation is automatically performed when an abnormal displacement occurs, it is possible to more quickly cope with a dangerous situation.

1A is a view showing an example of an underground horizontal inclinometer system according to the present invention;
1B is a view showing the overall configuration of the underground horizontal inclinometer device;
2 is a view for explaining the internal configuration of the main body of the underground horizontal inclinometer device;
3 is a view for explaining the configuration of a cable used in the underground horizontal inclinometer device;
4 is a functional block diagram schematically illustrating the configuration of a control unit of the underground horizontal inclinometer device;
5 is an explanatory view for explaining the clamp position matching function in the underground horizontal inclinometer device;
6 is a graph for explaining the vibration monitoring analysis in the underground horizontal inclinometer device;
Fig. 7 is a graph showing an example of signal processing for improving the precision of inclination data measured by the underground horizontal inclinometer device;
8 is a view for explaining the configuration of a probe or sensor assembly used in the underground horizontal inclinometer device;
9 is a flowchart for explaining an operation of positioning a measurement sensor at an accurate point and measuring an inclination in the underground horizontal inclinometer device.
10 is a flowchart for explaining a re-measurement operation in the underground horizontal inclinometer device.

Specific structural or functional descriptions of the embodiments according to the concept of the present invention disclosed herein are only exemplified for the purpose of explaining the embodiments according to the concept of the present invention, and the embodiment according to the concept of the present invention These may be embodied in various forms and are not limited to the embodiments described herein.

Since the embodiments according to the concept of the present invention may have various changes and may have various forms, the embodiments will be illustrated in the drawings and described in detail herein. However, this is not intended to limit the embodiments according to the concept of the present invention to specific disclosed forms, and includes changes, equivalents, or substitutes included in the spirit and scope of the present invention. Hereinafter, embodiments will be described in detail with reference to the accompanying drawings. However, the scope of the patent application is not limited or limited by these embodiments.

1A is a diagram showing an example of an underground horizontal inclinometer system according to an embodiment of the present invention. As shown in Figure 1a, the underground horizontal inclinometer system 10 according to the present invention includes an underground horizontal inclinometer device 100 and a database server 200, and the underground horizontal inclinometer device 100 and the database server 200 are They are connected to each other through a communication network or network N.

The communication network N may be any one or a combination of a wired communication network and a wireless communication network, and the wired communication network is a local area network (LAN), a wide area network (WAN), and a value-added network. ; VAN), and the wireless communication network is a personal area network (PAN), a mobile radio communication network (eg, Global System for Mobile communications (GSM), International Mobile (IMT) Telecommunication)-2000, CDMA(Code Division Multiple Access)-2000, W-CDMA(W-Code Division Multiple Access), LTE(Long Term Evolution communication), Wibro(Wireless Broadband Internet), Mobile WiMAX, HSDPA(High Speed DownlinkPacket) Access)) or a satellite communication network, and the like.

The underground horizontal inclinometer device 100 transmits the measured data and the captured image to the database server 200 through the communication network N, and the database server 200 stores the measured data and the captured image in its own database, and then the database server The client terminal 210 connected to the 200 is configured to provide the measurement data and the captured image upon request.

1B is an explanatory diagram for explaining the structure of the underground horizontal inclinometer device 100 . As shown in FIG. 1B, the underground horizontal inclinometer device 100 includes a body 110 exposed above the ground and a probe or measurement sensor assembly 300 positioned in a perforated hole or guide tube in the perforated hole, and the main body In 110, a transfer unit for raising or lowering the probe 300 in the vertical direction in the drilled hole, and at the same time controlling the operation of the transfer unit, determining the inclination according to the depth based on the data measured from the probe and converting it into data includes a control unit. The main body configuration of the underground horizontal inclinometer device 100 will be described in more detail below with reference to FIG. 2 .

2 is a diagram schematically showing the internal configuration of the main body 110 of the underground horizontal inclinometer device 100 . As shown in FIG. 2, the body 110 of the underground horizontal inclinometer device 100 has a transfer unit 120 for elevating and lowering the probe; a control unit 130 for controlling the transfer operation of the transfer unit 120 and controlling the operation of the measurement sensor; and a clamp photographing unit 140 .

The transfer unit 120 includes a cable drum 121 on which a cable is wound; and a drive motor 122 that operates to rotate the cable drum 121 . The end ( The measurement sensor or probe coupled to 123a) may be moved up or down in a hole drilled in the ground or a guide tube in the hole.

3 is a diagram illustrating the structure of the cable 123 wound around the cable drum 121 by way of example. As shown in FIG. 3 , a clamp 123b is installed on the cable 123 . The clamp 123b is provided to grasp the exact position (or height) of the measurement sensor or probe within the drilled hole. A plurality of clamps 123b are provided to the cable at predetermined intervals, for example, preferably at intervals of 0.5 m. As the plurality of clamps 123b are arranged at regular intervals, the control unit 130 accurately detects the measurement sensor or probe in the perforated hole based on the number and position of the clamps 123b photographed through the clamp photographing unit 140 . It is possible to determine the exact position while positioning the position.

More specifically, FIG. 4 is a functional block diagram showing the internal structure of the control unit 130 functionally. 4, the control unit 130 includes a speed control unit 131 for controlling the rotation speed of the drive motor 122 for rotating the cable drum; a position correction unit 132 for correcting a height position of the clamp according to the clamp image taken from the clamp photographing unit; a clamp matching determination unit 133 that determines whether or not the clamp matches from the clamped image; a sensor measurement command unit 134 for instructing the measurement sensor to perform measurement when it is determined by the clamp matching determination unit 133 that the clamp matches the reference line; a signal analysis unit 135 for determining whether there is an abnormality by determining the value measured by the sensor; a memory 136 in which the measurement data measured from the sensor and the image photographed from the external photographing unit are stored; and a communication unit 137 that communicates with the external database server 200 .

The motor speed control unit 131 is configured to control the rotation speed of the motor, which determines the moving speed of the cable 123 . Preferably, the moving speed of the cable is 5 cm/sec in order to minimize the photographing error of the clamp photographing unit.

The position corrector 132 determines the rotation direction of the driving motor 122 as either a forward direction or a reverse direction according to the result of the clamp matching determination unit 133 . The position corrector 132 helps to determine the exact position of the probe or sensor assembly 300 by disposing the clamp at an accurate position.

The clamp matching determining unit 133 determines whether the clamp is positioned at a predetermined precise point based on the image captured by the clamp photographing unit 140, and if not, sends feedback to the position correcting unit 132 so that the clamp is accurate It operates to be positioned at the point.

5 is an explanatory diagram for explaining the operation of the clamp matching determination unit 133 . As shown in FIG. 5 , the clamp matching determining unit 133 receives the image photographed by the clamp photographing unit 140 , and the lower boundary of the clamp 123b is a virtual reference of the image as shown in FIG. It determines whether the line matches or not. When it is determined that the lower boundary of the clamp matches the virtual reference line of the image, the clamp matching determination unit 133 operates to command the sensor measurement command unit 134 to measure the sensor at the current position, while the lower boundary of the clamp If it does not match the virtual reference line of the image, the position corrector 132 determines the rotation direction of the motor, and the lower boundary of the clamp matches the virtual reference line of the image.

Since the clamps are installed on the cable at predetermined intervals, the controller can determine the exact position of the sensor assembly by counting the number of clamps. The control unit stops the rotation of the motor as soon as the boundary of the clamp at the bottom of the clamp approaches the fixed virtual guide line, determines whether the boundary of the clamp exactly matches the guide line, and measures only when it matches, so that the conventional sensor guide roller It is possible to prevent the positioning error caused by slip phenomenon in the automatic horizontal underground inclinometer that performs measurement using the

Although it has been described that the position of the sensor assembly 300 can be grasped by checking whether the lower boundary of the clamp matches the reference line in the above embodiment, the present invention is not limited thereto, and the size of the clamp 123b (clamp) By simultaneously analyzing horizontal and vertical pixel recognition of

The signal analyzer 135 is operated to analyze and process a signal measured from the sensor. The signal analyzer 135 includes a vibration analyzer 1351 and an abnormality detector 1352 . The vibration analysis unit 1351 is configured to monitor vibration during sensor measurement. Specifically, the vibration analysis unit 1351 is configured to monitor low-frequency vibrations generated in the process of measuring the horizontal level after stopping the transfer. it is for Typically, this is determined by the magnitude of the acceleration, but it may be determined by analyzing the frequency or amplification in real time (FFT analysis) in order to capture the low frequency amplitude. At this time, when the measured amplitude is below the reference value, the sensor measurement is completed. As shown in FIG. 6 , a frequency of less than 20 hz is typically used, and the amplification standard must be 1/100 or less of the field change amount management standard to minimize the error in the accumulated change amount.

The abnormality detection unit 1352 monitors the value measured by the measurement sensor and determines whether abnormal displacement occurs. In the case of the conventional underground inclinometer, the measured data is compared and reviewed with the expected displacement in the design, and is used to estimate and determine the safety level of the ground relaxation area or temporary structure and the area of influence of damage. ) and then compares the current measured value with the initial measured value to calculate the amount of displacement, and operates to perform alarm and re-measurement processing when the control standard is exceeded. The re-measurement process is performed by narrowing the measurement interval according to the step-by-step management standards and extending the measurement interval again when the amount of change is stabilized. For example, if the primary control standard is exceeded, one additional measurement is carried out. If the secondary control criterion is exceeded, one additional measurement is performed and then the measurement is performed at 1/2 shorter time interval of the existing measurement interval. If the control standards are exceeded, measurements are continuously performed.

Therefore, when a dangerous situation such as ground relaxation is in progress, the re-measurement logic is automatically performed, and the condition of the ground can be checked more accurately and quickly, so that the risk can be quickly dealt with.

In addition, the signal analyzer 135 commands to photograph the external environment of the underground horizontal inclinometer device 100 through the external camera 150 attached to the main body 110 when the abnormal displacement is detected as described above. At this time, the signal analysis unit 135 is configured to transmit the image photographed through the external camera 150 together with the re-measured data information to the database server 200 together with the re-measured data information when the measured displacement exceeds the management standard, and the manager is the underground horizontal inclinometer By examining the external environment of the device and the re-measured data together, it can be helpful to identify the cause of the abnormal displacement.

In addition, the abnormality detection unit 1352 of the signal analysis unit 135 has an alarm transmission function and/or an SMS notification function using the alarm transmission unit 139 in addition to the above-described re-measurement instruction and shooting of the external environment when abnormal displacement is detected. further includes The alert sending unit 139 functions to immediately transmit an alert through a speaker installed in the horizontal inclinometer device 100 in response to a command from the signal analyzer 135 or to send an SMS message to a predetermined terminal or server of an administrator. . To this end, the memory 136 may pre-store alert broadcasting and SMS messages according to event types.

In the above embodiment, the external camera 150 has been described as operating only when an abnormal displacement is detected, but the present invention is not limited thereto. .

Preferably, the external camera 150 may be configured as a 360-degree camera capable of photographing the surrounding environment, or may be configured to include a plurality of cameras having a predetermined angle of view.

The signal analyzer 135 includes a noise removal function to improve precision in the extracted data. 7 is a graph for explaining a noise processing technique in the present invention. As shown, a noise signal typically has a wider amplitude than a clean signal, so it is necessary to remove the influence of the noise signal. In the present invention, except for data within 10% of the maximum value and the minimum value of 10% or more from the minimum value of the measurement signal including noise, the remaining signal data is averaged and the data is processed by LPF (Low Pass Filter) of 1 to 5 Hz. improve the precision of

The communication unit 137 may apply various types of wireless communication protocols, such as RFID, infrared (Ir) communication, Bluetooth, Zigbee, UWB (Ultra WideBand), Wi-Fi, RF communication, LoRa communication, etc. A short-distance communication method or a mobile communication network such as LTE may be applied. In addition, the communication unit 137 includes a serial communication interface for performing communication with the sensor assembly 300 . As the serial communication interface, a half-duplex RS-485 method may be employed. The RS-485 method has the advantage that the data transmission distance is relatively long and stable.

8 is a diagram schematically illustrating an external and internal structure of the sensor assembly or probe 300 . Since the sensor assembly 300 ascends or descends along the perforated hole portion in the ground, it may be configured as a substantially cylindrical housing having a wire or cable connected thereto. A plurality of wheels 301 to be able to follow along the inner wall of the hole or the inner wall of the casing may be disposed on the outside of the housing, and various known methods may be applied for the configuration and connection relationship of the wheels 301 with the housing. There will be.

In the inner space of the housing, elements for sensing, communication, and control may be disposed at selective positions. Considering communication efficiency with the control unit 130 of the main body, the RS-485 serial type in the upper space of the sensor assembly 300 Preferably, the communication unit 110 is disposed to perform communication with the control unit 130 . For serial communication, an RS 485 cable for performing serial communication in the RS 485 method may be built-in inside the cable, and the communication method using the RS-485 type serial communication corresponds to a known technology. is omitted.

The inclination sensor 330 is provided in the inner space of the housing of the sensor assembly 300 , moves while following the inner wall of the hole, and the inclination data measured at a designated position is transmitted to the controller 130 of the main body.

A contact sensor 340 may be provided at the lower end of the housing of the sensor assembly 300 to check whether a predetermined depth has been reached through contact with the bottom surface. When the contact sensor 340 is in contact with the floor, the sensor control unit 320 transmits the contact with the floor to the control unit 130 of the main body, and the main body control unit 130 stops the unwinding of the cable and reversely rotates to start lifting. can be configured to

In addition, although not shown, the underground horizontal inclinometer device 100 according to the present invention includes an integrated interface for receiving measurement data from an analog or digital sensor installed in the vicinity. The integrated interface is a water level meter used for the safety of surrounding structures due to the increase or decrease of groundwater and the safety of excavation work by measuring the fluctuations in the groundwater level with other measuring devices used in the ground or building construction, for example. ), a crack meter that measures the amount of deformation of cracks generated in a structure by installing it on an adjacent structure during tunnel excavation, a tile meter that measures the inclination angle of neighboring buildings, structures, retaining walls, etc., loads and Data from a load cell that measures the increase/decrease and change rate of tensile force, and a strain gauge that measures the deformation and stress of steel structures and concrete due to back earth pressure deformation during construction by being attached to a steel structure or buried in concrete By receiving, storing, and transmitting it to the database server 200, there is no need to use a separate dedicated data logger. The integrated interface is designed to be compatible with, but not limited to, voltage ±0-5V output sensors, current 0-20mA output sensors, and digital RS485 output sensors.

9 is a flowchart illustrating an operation of positioning a measuring sensor at an accurate point and measuring an inclination in the underground horizontal inclinometer device as described above. As shown in FIG. 9 , after the underground horizontal inclinometer device is installed in the hole, the operation of lowering the cable is performed in step S100. As the cable descends, the probe or measurement sensor assembly installed at the end of the cable descends within the hole.

As described with reference to FIG. 2, clamps 123b are installed on the cable 123 at 0.5 m intervals, and in step S120, the clamp photographing unit installed in the underground horizontal inclinometer takes the clamp, and whenever the clamp is detected, the clamp number will be counted.

In step S130, the control unit 130 determines whether the probe or measurement sensor assembly 300 has reached the bottom surface of the hole. ) reaches the bottom of the hole, the contact sensor 340 detects it and notifies the control unit 130, and the control unit 130 stops the descent of the cable and calculates the total depth in step S140. The total depth may be obtained by multiplying the clamp installation distance (eg 0.5 m) by the number of clamps sensed.

After the total depth is calculated in step S140, in step S150, the controller 130 raises the cable, and in step S160, whether the clamp matches the reference line of the image, that is, the clamp matches the reference line of the image. It is judged whether When the clamp is matched to the reference line of the image, the inclination is measured by the inclination sensor, whereas if the clamp is not matched to the reference line of the image, in step S165, after performing the position correction of the clamp, the clamp is matched to the reference line and the inclination is measured and recorded.

10 is a flowchart illustrating a re-measurement operation process of the underground horizontal inclinometer device when abnormal displacement occurs. As shown in FIG. 10 , in step S210 , the initial gradient is measured and stored by the process shown in FIG. 9 .

In the subsequent step S220, the inclination measurement in the hole is subsequently performed using the underground horizontal inclinometer device, and after the subsequent inclination measurement is completed, the controller 130 compares the initial gradient measurement value with the current gradient measurement value to determine the displacement amount. will do It is determined whether the displacement amount calculated in the subsequent step S240 is within the control standard or the allowable standard.

If it is determined in step S240 that the displacement amount satisfies the management criteria, the process proceeds to step S250 and the measured data is stored. In step S250, if necessary, an external image may be stored together.

On the other hand, if it is determined in step S240 that the management standard has been exceeded, the step proceeds to S255 and the re-measurement control unit 130 performs a re-measurement command. The re-measurement operation of the underground horizontal inclinometer device is performed by narrowing the measurement time interval according to the step-by-step management standards, for example, by extending the measurement time interval when the measurement is performed at 1/2 time interval of the existing measurement time interval and the change is stable. do.

In the re-measurement operation, if the primary control criterion is exceeded, one additional measurement is performed, but if the secondary control criterion is exceeded, the measurement is performed at 1/2 time interval of the measurement time interval after one additional measurement, and the third If the control criteria are exceeded, measurements are continuously performed.

When the re-measurement operation is performed, the control unit 130 captures the external surrounding environment through the external photographing unit of the underground horizontal inclinometer apparatus 100 as in step S260, and then sends the re-measurement data and the external environment image to the manager terminal or in the subsequent step S270. It is transmitted to the database server 200 and, if necessary, generates an alarm through a speaker built into the underground horizontal inclinometer device, or transmits an SNS message to the manager terminal or the database server 200 to respond urgently.

The device described above may be implemented as a hardware component, a software component, and/or a combination of the hardware component and the software component. For example, devices and components described in the embodiments may include, for example, a processor, a controller, an arithmetic logic unit (ALU), a digital signal processor, a microcomputer, a field programmable gate array (FPGA). , a programmable logic unit (PLU), microprocessor, or any other device capable of executing and responding to instructions, may be implemented using one or more general purpose or special purpose computers. The processing device may execute an operating system (OS) and one or more software applications running on the operating system. The processing device may also access, store, manipulate, process, and generate data in response to execution of the software. For convenience of understanding, although one processing device is sometimes described as being used, one of ordinary skill in the art will recognize that the processing device includes a plurality of processing elements and/or a plurality of types of processing elements. It can be seen that it can include For example, the processing device may include a plurality of processors or one processor and one controller. Other processing configurations are also possible, such as parallel processors.

Software may comprise a computer program, code, instructions, or a combination of one or more thereof, which configures a processing device to operate as desired or is independently or collectively processed You can command the device. The software and/or data may be any kind of machine, component, physical device, virtual equipment, computer storage medium or device, to be interpreted by or to provide instructions or data to the processing device. may be embodied in The software may be distributed over networked computer systems and stored or executed in a distributed manner. Software and data may be stored in one or more computer-readable recording media.

The method according to the embodiment may be implemented in the form of program instructions that can be executed through various computer means and recorded in a computer-readable medium. The computer-readable medium may include program instructions, data files, data structures, etc. alone or in combination. The program instructions recorded on the medium may be specially designed and configured for the embodiment, or may be known and available to those skilled in the art of computer software. Examples of the computer-readable recording medium include magnetic media such as hard disks, floppy disks and magnetic tapes, optical media such as CD-ROMs and DVDs, and magnetic such as floppy disks. - includes magneto-optical media, and hardware devices specially configured to store and execute program instructions, such as ROM, RAM, flash memory, and the like. Examples of program instructions include not only machine language codes such as those generated by a compiler, but also high-level language codes that can be executed by a computer using an interpreter or the like.

Therefore, other implementations, other embodiments, and equivalents to the claims should be construed as falling within the scope of the following claims.

100: underground level inclinometer device 200: database server
110: device body 300: measurement sensor assembly or probe
120: transfer unit 130: control unit
140: clamp recording unit 150: external photographing unit
123: cable 123b: clamp
131: motor speed control unit 132: position correction unit
133: clamp matching determination unit 134: sensor measurement command unit
135: signal analysis unit 137: communication unit

Claims (7)

In the underground horizontal inclinometer device for measuring the inclination of the ground,
A transfer unit for raising or lowering a probe including a measurement sensor in a vertical direction in a drilled hole - The transfer unit includes a cable, the cable is provided with clamps at regular intervals, and the end of the cable is at the end of the probe Connected - ;
a control unit for controlling the operation of the transfer unit and at the same time determining the inclination according to the depth based on the data measured from the measurement sensor and converting it into data; and
Including; a clamp photographing unit for photographing the clamp installed on the cable;
The transfer unit includes: a cable drum on which a cable is wound; and a drive motor operative to rotate the cable drum so that, depending on the direction of rotation of the drive motor, the cable is unwound from the cable drum or wound around the cable drum so that the probe coupled to the end of the cable is positioned within the drilled hole, ,
When the control unit controls the position of the probe in the drilled hole by controlling the operation of the transfer unit using the clamp image captured by the clamp photographing unit, a virtual reference line is created in the image, and the lower boundary of the clamp is When the virtual reference line does not match, the lower boundary of the clamp is configured to match the virtual reference line of the image by determining the rotation direction of the driving motor
Underground horizontal inclinometer device.
delete According to claim 1,
The underground horizontal inclinometer device, characterized in that it further comprises an external photographing unit for photographing the surrounding environment in which the underground horizontal inclinometer device is installed.
Underground horizontal inclinometer device.
According to claim 1,
The control unit is configured to stop the transfer unit when the clamp photographed by the clamp photographing unit matches the virtual reference line and to have the measurement sensor perform the inclination measurement
Underground horizontal inclinometer device.
According to claim 1,
The control unit is configured to perform vibration monitoring to prevent an error caused by vibration, and when the vibration is less than or equal to a reference value, the measurement sensor is configured to perform inclination measurement
Underground horizontal inclinometer device.
According to claim 1,
The control unit is configured to store the initially measured slope value as an initial value, determine the displacement amount by comparing the subsequently measured slope value with the initial value, and perform a re-measurement operation when the calculated displacement amount exceeds the management standard characterized
Underground horizontal inclinometer device.
7. The method of claim 6,
The re-measurement operation is
If the primary control criteria are exceeded, one additional measurement is taken;
If the secondary control criteria are exceeded, after one additional measurement, measurement is performed at 1/2 time intervals of the measurement time interval,
characterized in that it is configured to continuously perform measurements when the tertiary control criterion is exceeded
Underground horizontal inclinometer device.

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