KR200491669Y1 - Devcie for measuring underground water level and underground subsidence - Google Patents

Abstract

The present invention relates to an apparatus for measuring underground water level and subsidence, and an apparatus for measuring underground water level and subsidence according to an embodiment of the present invention includes a first sensor and a magnetic field strength for detecting a resistance value or a change in resistance value Alternatively, a sensor unit including a second sensor for detecting a change in the magnetic field strength, a resistance value sensed through the first sensor or a change in resistance value satisfies the first reference value, or the magnetic field strength sensed through the second sensor Alternatively, when the change in magnetic field strength satisfies the second reference value, an alarm unit that provides a signal to the outside, an sensor unit, and an arduino connected to the alarm unit, and a resistance value when the first sensor contacts water, or The first mode and the second sensor for measuring the ground level by detecting a change in the resistance value detect the change in the magnetic or magnetic field strength when the magnet is adjacent to the magnet, and A control unit connected to the control unit and to operate any one of a second mode for measuring includes a display that can display the operating mode of the control unit and set.

Description

DEVIE FOR MEASURING UNDERGROUND WATER LEVEL AND UNDERGROUND SUBSIDENCE

The present invention relates to an apparatus for measuring underground water level and subsidence, and more particularly, to an apparatus capable of measuring underground water level and subsidence using a single device using Arduino.

At the construction site, in order to confirm the safety of construction, measurement management is performed to measure and analyze the amount of ground deformation and settlement with various measuring devices. As a device for such measurement management, there are a groundwater level meter, an underground submergence meter, an underground inclinometer, an interstitial water pressure gauge, and a surface subsidence meter.

Among them, the groundwater level meter is a device for measuring the groundwater level, and the groundwater level is measured through the groundwater level meter for various purposes at the construction site. Measurement of the underground water level, for example, may be made for the purpose of measuring the hydrostatic pressure in order to confirm the pore water pressure in the soft ground, and in the mudguard of the temporary facility, it may be made to confirm the change in the underground water level due to excavation.

The underground settlement meter is a device for measuring the amount of subsidence in the ground and can be used for the purpose of estimating the density by measuring the settlement amount by depth. By measuring the subsidence, it is possible to determine the allowance for the change and speed of the absolute value of the subsidence and predict the steady state.

The measurement of the underground water level and subsidence is specified through a sensor in the installed facility by inserting a casing and a pipe into an excavation hole drilled to the aquifer and floating layer in the vertical direction, respectively.

1 is a view schematically showing an existing device for measuring an underground water level, referring to this, the underground water level measuring device 10 is a body 11 including a wheel, and a cable that can be extended by being wound around a wheel of the body 11 12 and a sensor 13 installed at one end of the cable 12. The conventional underground water level measuring device 10 has a form that can be confirmed by the user of the ground by emitting sound or light when the sensor 13 installed at the end of the tape-shaped cable 12 contacts the ground water.

As such, the measurements of the groundwater level and subsidence are all made by descending the sensor in the vertical direction. In addition, for measurement management, periodic measurements of both groundwater level and underground settlement are required for a long period of time. However, since the measurement of the ground level and the settlement of the subsurface must be performed through separate measurement devices, there is a problem that the user is inconvenient.

Registered Patent Publication No. 1435961 (September 2, 2014)

The present invention is to solve the problems of the prior art described above, and its purpose is to provide a device capable of measuring underground water level and subsidence with one device.

In addition, the object of the present invention is to provide an underground water level and underground settlement measurement device that is easy to operate because the user can easily change the measurement mode of the underground water level and underground settlement.

An apparatus for measuring underground water level and subsidence according to an embodiment of the present invention includes a first sensor for detecting a resistance value or a change in the resistance value and a second sensor for detecting a change in the magnetic field strength or the magnetic field strength When the sensor unit, the resistance value or the change in resistance value detected through the first sensor satisfies the first reference value, or when the change in the magnetic field strength or the magnetic field strength sensed through the second sensor satisfies the second reference value It is composed of an alarm unit that provides a signal to the outside, a sensor unit, and an arduino connected to the alarm unit, and is used to measure the underground water level by detecting a resistance value or a change in resistance value when the first sensor contacts water. A first mode and a second sensor that detects a change in magnetic field or magnetic field strength when adjacent to a magnet and can operate in either of the second modes to measure subsidence. Comprises part and is connected to a display control unit that displays the operating mode of the control unit and set.

According to an embodiment of the present invention, the sensor unit may be connected to the control unit through a cable, and a variable resistor may be installed between the sensor unit and the control unit.

According to an embodiment of the present invention, the second sensor may be formed of a hall sensor.

According to an embodiment of the present invention, the notification unit may include a piezo speaker.

The apparatus for measuring underground water level and subsidence according to an embodiment of the present invention may further include a communication unit capable of wireless communication with an external device.

The apparatus for measuring underground water level and subsidence according to an embodiment of the present invention relates to a change in a resistance value or a resistance value detected through a first sensor and a change in a magnetic field strength or a magnetic field strength detected through a second sensor A data storage unit for storing data may be further included.

The device according to an embodiment of the present invention includes a sensor unit for detecting a resistance value or a change in the resistance value, and a sensor unit including a sensor for detecting a change in the magnetic field strength or the magnetic field strength. Settling can be measured.

In addition, according to an embodiment of the present invention, a control unit made of an Arduino detects a resistance value or a change in resistance value to measure the ground level, and a mode for measuring subsidence by sensing a change in magnetic field strength or magnetic field strength. Either can be operated, and the operation mode of the control unit can be displayed and set through the display unit connected to the control unit, so that the user can conveniently measure the groundwater level and subsidence.

1 is a view schematically showing an underground water level measuring device according to the prior art.
2 is a view schematically showing the configuration of an underground water level and subsidence measurement apparatus according to an embodiment of the present invention.
3 is a view showing a connection form of the control unit and the sensor unit of the underground water level and subsidence measurement apparatus according to an embodiment of the present invention.
4A and 4B are views showing a state displayed on a display unit of an underground water level and underground settlement measurement apparatus according to an embodiment of the present invention.
5 is a view showing a state of measuring the underground water level with the underground water level and subsidence measurement device according to an embodiment of the present invention.
6 is a view showing a state of measuring underground settlement with an underground water level and underground settlement measurement apparatus according to an embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art to which the present invention pertains can easily implement them.

In order to clearly describe the present invention, descriptions of parts not related to the present invention are omitted, and the same reference numerals are assigned to the same components throughout the specification. In addition, the size, thickness, location, and the like of each component shown in the drawings are arbitrarily shown for convenience of description, and the present invention is not necessarily limited to what is illustrated. That is, specific shapes, structures, and characteristics described in the specification may be implemented by changing from one embodiment to another embodiment without departing from the spirit and scope of the present invention, and the position or arrangement of individual components may also be considered. And it should be understood that it can be changed without departing from the scope.

Therefore, the following detailed description is not intended to be done in a limiting sense, and the scope of the present invention should be taken as encompassing the scope claimed by the claims and all scopes equivalent thereto.

2 is a view schematically showing the configuration of an underground water level and subsidence measurement apparatus according to an embodiment of the present invention.

Referring to FIG. 2, the underground water level and underground settlement measurement apparatus 100 according to an embodiment of the present invention includes a power supply unit 110, a control unit 120, a sensor unit 130, a notification unit 140, and a display unit ( 150).

The power supply unit 110 serves to supply power to the control unit 120 and the like. The power supply unit 110 is made of a battery and may be stored in a case together with a control unit 120 to be described later. However, instead of being provided with a power source made of a battery in the present invention, it is also possible to supply power by being connected to an external power source.

The control unit 120 is connected to the sensor unit 130, the notification unit 140, and the display unit 150 and controls them to allow the underground water level and subsidence measurement device 100 to perform its original function. According to this embodiment, the control unit 120 is made of an Arduino and can operate in one of a mode for measuring an underground water level and a mode for measuring underground settlement. The specific configuration and function of the control unit 120 will be described in detail later.

The sensor unit 130 performs a function of detecting a change in resistance value or resistance value and a change in magnetic field strength or magnetic field strength in order to measure the subsurface water level and subsidence. To this end, the sensor unit 130 includes a first sensor for detecting a resistance value or a change in the resistance value, and a second sensor for detecting a change in the magnetic field strength or the magnetic field strength.

The first sensor of the sensor unit 130 is made of a conductive probe and uses a voltage measured according to an object to be contacted. Specifically, since an electric current flows through the first sensor and the voltage changes according to the resistance of the contacting object when the object is in contact, the Arduino of the control unit 120 connected to the first sensor of the sensor unit 130 is connected to the voltage. The resistance value is measured by sensing through. Using this, the first sensor can detect a change in the resistance value when it comes into contact with water, and through this, the position of the water, that is, the underground water level can be measured.

The second sensor of the sensor unit 130 may be made of a Hall sensor. Specifically, the second sensor may be made of a Hall sensor including a conductor and a transistor, and when a magnetic field is applied, a predetermined voltage (hole voltage) is generated in the conductor and amplified through the transistor. The voltage generated by the hall effect may be sensed through the Arduino of the control unit 120 connected to the second sensor of the sensor unit 130. Conversely, when no magnetic field is applied, no voltage is generated due to the large resistance between the transistor and ground. As described above, it is possible to determine whether a magnetic field is applied to the vicinity of the second sensor through the second sensor of the sensor unit 130, and more specifically, whether a magnet is located in the vicinity. If this is utilized, the subsidence can be measured by installing a magnet at a specific location in the ground and measuring the change in the location (ie, depth) where the magnet is installed through a second sensor.

Meanwhile, the sensor unit 130 may adjust sensitivity through a variable resistor.

3 is a view showing the connection form of the control unit and the sensor unit of the underground water level and subsidence measurement apparatus according to an embodiment of the present invention, referring to this, the control unit 120 and the sensor unit 130 to be connected by a cable 131 A variable resistor 133 may be additionally installed at a connection between the control unit 120 and the sensor unit 130. The sensitivity of the sensor unit 130 may be adjusted through the variable resistor 133. For example, when the detection of the resistance change is low, the sensitivity can be increased by lowering the resistance of the variable resistor.

The notification unit 140 performs a function of informing the user of information about the ground level and subsidence to the user according to the value measured by the sensor unit 130. Specifically, the notification unit 140 sends a notification signal (first signal) when a resistance value or a change in resistance value detected through the first sensor of the sensor unit 130 satisfies a preset criterion (first reference value). Can provide. In addition, the notification unit 140 provides a notification signal (second signal) even when a change in the magnetic field strength or the magnetic field strength detected through the second sensor of the sensor unit 130 satisfies a preset criterion (second reference value). can do. The first signal and the second signal are provided as different signals, but need not be provided as different signals.

The control unit 120 determines whether a resistance value or a change in resistance value detected through the first sensor satisfies the first reference value and whether the change in magnetic field strength or magnetic field intensity measured through the second sensor satisfies the second reference value. In the determination, the control unit 120 controls whether to provide a notification signal to the notification unit 140 according to the determined content. At this time, the first reference value for providing the first signal may be set based on a resistance value or a change in resistance value when the first sensor contacts water, and the second reference value for providing the second signal is a magnet, More precisely, it can be set based on a change in magnetic field strength or magnetic field strength applied by a magnet installed in the ground.

The notification unit 140 may be formed of a piezo speaker connected to an Arduino of the control unit 120. In this case, as described above, a sound may be generated according to a resistance value or a change in the resistance value measured through the first sensor, and a change in the magnetic field intensity or the magnetic field intensity measured through the second sensor, through which the user may The level and / or subsidence can be determined. Of course, the notification signal of the notification unit 140 may be displayed as light using LED instead of sound using a piezo speaker.

The display unit 150 is connected to the control unit to display the operation mode of the control unit and serves to enable the user to set the operation mode. As described above, the control unit 120 may operate in any one of a mode for measuring an underground water level and a mode for measuring subsidence, and the display unit 150 displays the current operation mode of the control unit 120 and changes the mode. You can provide a screen to choose from. In addition, the display unit 150 has a value sensed through the sensor unit 130 separately from the notification unit 140, for example, a resistance value detected through the first sensor or a magnetic field strength measured through the second sensor. May be displayed.

The underground water level and subsidence measurement apparatus 100 according to an embodiment of the present invention may further include a communication unit (not shown). The communication unit may function to allow the underground water level and subsidence measurement device 100 to transmit and receive data to and from external devices, for example, a user terminal or an external server. Here, the user terminal may be various types of mobile devices such as a smart phone, a smart pad, a smart glass, a smart watch, and a smart band. The communication unit may be formed of a short-range wireless communication module including Wi-Fi and Bluetooth Low Energy (BLE) for data transmission and reception with an external device, and may be made of a known wireless communication module.

According to this embodiment, since measurement information can be transmitted through the communication unit, information can be checked and managed at a remote location, so that efficient measurement management can be achieved.

The underground water level and subsidence measurement apparatus 100 according to an embodiment of the present invention may further include a data storage (not shown). The data storage unit stores data related to a change in resistance value or resistance value sensed through the first sensor and data related to a change in magnetic field intensity or magnetic field intensity sensed through the second sensor, allowing the user to effectively manage the measurement data. Make it possible.

Power supply unit 110, control unit 120, notification unit 140, display unit 150, communication unit and data storage unit of the underground water level and subsidence measurement device 100 according to an embodiment of the present invention are housed in a single casing Can be installed. However, as the power supply unit 110, it is also possible to use an external power supply instead of a battery that can be mounted in the casing, and the display unit 150 is not installed in a single casing, but can also be installed in a separate device, and can be wirelessly connected through It would also be possible to utilize the display of a user terminal capable of communication.

As described above, the underground water level and subsidence measurement apparatus 100 according to an embodiment of the present invention includes a first sensor and a magnetic field strength or magnetic field strength for the sensor unit 130 to detect a resistance value or a change in the resistance value It includes a second sensor for detecting a change, the control unit 120 detects a resistance value or a change in the resistance value through the first sensor mode (first mode) and the second sensor for measuring the ground level. Through this, it is possible to operate in one of two operating modes: a mode (second mode) for measuring underground settlement by detecting a change in magnetic field strength or magnetic field strength.

In order to implement such an operation mode and allow a user to use it conveniently, in this embodiment, the controller 120 is implemented as an Arduino. For example, the controller 120 may be made of an Arduino Uno board or a WeMos board.

In addition, according to this embodiment, the Arduino can be connected to and controlled by the display unit 150. Specifically, the value measured through the sensor unit 130 or the current operation mode can be checked on the display unit 150, and operations such as changing the settings of the Arduino may be performed through the display unit 150. . As described above, the display unit 150 may be stored together with the Arduino of the control unit 120 in a single casing, but may alternatively be a display of an external device connected through a USB cable.

4A and 4B are views showing a state displayed on a display unit of an underground water level and underground settlement measurement apparatus according to an embodiment of the present invention. Specifically, FIG. 4A shows a sketch program of Arduino, through which a user can input text and output it on a display, and Arduino can be operated by writing a program using various functions. 4B shows a screen in which a serial monitor is executed in an Arduino sketch program. Referring to FIG. 4B, for example, in the serial monitor, the voltage measured through the first sensor is 0 when the value is 0V and 1023 when the voltage is 5V, and the measurement value is displayed as a number from 0 to 1023.

As such, according to an embodiment of the present invention, it is possible to easily check the information measured by the sensor unit 130 through the control unit 120 and the display unit 150 implemented as an Arduino, as well as the control unit 120. By simply changing the operating mode, it is possible to measure groundwater level and subsidence with one device.

Hereinafter, a state in which the underground water level and underground settlement is measured with the underground water level and underground settlement measurement apparatus 100 will be described with reference to the drawings.

5 is a view showing a state of measuring the underground water level with the underground water level and subsidence measurement device according to an embodiment of the present invention. Referring to FIG. 5, after inserting the casing and the pipe 210 into the excavation hole drilled to the aquifer in the vertical direction, the grout material 220 is injected to measure the underground water level and subsidence settlement device 100 in the installed underground measurement facility. The sensor 130 is lowered. A first sensor is installed at the end of the sensor 130, and when the first sensor touches the groundwater 230, a control unit connected to the first sensor can detect a change in the resistance value. When the resistance value or the change in the resistance value satisfies the first reference value, it is provided as a notification signal to the user through the piezo speaker or the like of the notification unit 140, and the falling length of the sensor unit 130 until the notification signal is provided. Through this, the underground water level can be measured. At this time, the user can also check whether the first sensor has touched the groundwater 230 by checking the resistance value or the change in the resistance value through the display unit 150.

6 is a view showing a state of measuring underground settlement with an underground water level and underground settlement measurement apparatus according to an embodiment of the present invention. Referring to FIG. 6, the underground settlement measurement facility installed by inserting the grout material 320 after inserting the casing and the pipe 310 into the excavation hole drilled to the floating layer in the vertical direction and mounting the side and bottom magnet parts 330 The sensor 130 of the underground water level and underground settlement measurement device 100 is lowered within. A second sensor may be installed above the first sensor installed at the end of the sensor 130, and when the second sensor is adjacent to the magnet unit 330, the magnetic field strength or its change may be controlled through a control unit connected to the second sensor. It becomes detectable. Specifically, the second sensor is composed of a hall sensor, so that the control unit 120 can detect the voltage generated by the hall sensor when the second sensor approaches the magnet unit 330. When the magnetic field strength or the change in the magnetic field strength satisfies the second reference value, it is provided as a notification signal to the user through a piezo speaker or the like of the notification unit 140, and the falling length of the sensor unit 130 until the notification signal is provided. You can check whether the settlement is underground. The magnet unit 330 may include a plurality of spider magnets 331 mounted on the side and a ring magnet 333 mounted on the lower portion, through which it is possible to check whether the layer is subsided. Likewise, the user can also check whether the second sensor has reached the magnet unit 330 by checking the magnetic field or the change in the magnetic field through the display unit 150.

Although the present invention has been described by specific matters such as specific components and limited embodiments, the above embodiments are provided to help the overall understanding of the present invention, and the present invention is not limited thereto, and the present invention Those skilled in the art can make various modifications and variations from these descriptions.

Therefore, the spirit of the present invention is not limited to the embodiments described above, and should not be determined, and all claims that are equally or equivalently modified with the claims as described below belong to the scope of the spirit of the present invention. will be.

100: underground water level and subsidence measurement device
110: power supply
120: control unit
130: sensor unit
131: cable
133: variable resistance
140: notification unit
150: display unit

Claims (6)

A device for measuring subsurface water level and subsidence,
A sensor unit including a first sensor for sensing a resistance value or a change in the resistance value and a second sensor for sensing a change in magnetic field strength or magnetic field strength,
When a resistance value or a change in resistance value detected through the first sensor satisfies a first reference value, a first signal is provided externally, and a change in magnetic field strength or magnetic field strength detected through the second sensor is second. A notification unit that provides a second signal different from the first signal when the reference value is satisfied,
A first mode and a second mode for measuring an underground water level by sensing a resistance value or a change in resistance value when the first sensor is made of Arduino connected to the sensor unit and the notification unit, and when the first sensor contacts water. A control unit capable of operating in any one of the second modes for measuring the subsidence by sensing the change in magnetic field strength or magnetic field strength when the sensor is adjacent to the magnet,
A display unit connected to the Arduino of the control unit to display a value measured through the first sensor and the second sensor of the sensor unit and an operation mode of the control unit and to provide a screen for selecting an operation mode of the control unit and
Communication unit capable of wireless communication with external devices
Including,
The sensor unit is connected to the control unit through a wire, a variable resistor is installed between the sensor unit and the control unit to adjust the sensitivity of the sensor unit,
The second sensor is made of a hall sensor,
In the display unit, the Arduino settings of the control unit can be changed.
The control unit, the notification unit, the display unit and the communication unit is housed and installed in a single casing,
The underground water level is measured through the falling length of the sensor unit when the first signal is provided through the notification unit, and whether the underground settlement is determined through the falling length of the sensor unit when the second signal is provided through the notification unit. Groundwater level and subsidence measuring devices, which are identified. delete delete According to claim 1,
The notification unit includes a piezo speaker, underground water level and subsidence measurement device. delete According to claim 1,
An underground water level further comprising a data storage unit for storing data relating to a resistance value or a change in resistance value sensed through the first sensor and data related to a change in magnetic field intensity or magnetic field intensity sensed through the second sensor, and Underground settlement measuring device.

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