KR102119871B1 - Standalone type exploratory sensor management apparatus - Google Patents

Abstract

An independent measuring borehole physical exploration sensor operating device is disclosed. The independent measurement type borehole physical exploration sensor operating apparatus according to the present invention is built in a sample layer rod that rises or falls along a borehole and measures physical properties of the ground, controls the operation of a plurality of sensors inside the sample layer rod, and controls each sensor An electronic circuit board for receiving and sorting data measured by the; A storage unit for storing data arranged by the electronic circuit board; And an electronic circuit board, a storage unit, and a power supply unit for supplying power to a plurality of sensors, and the probe rod mounts the storage unit on the electronic circuit board, electrically connects the plurality of sensors and power supply units, and then introduces foreign matter into it. It is characterized by being sealed so as not to enter.

Description

Independent measuring type borehole physical exploration sensor operating device {STANDALONE TYPE EXPLORATORY SENSOR MANAGEMENT APPARATUS}

The present invention relates to an independent measurement capable borehole sensing sensor operating device, and more particularly, to reduce measurement errors caused by loosening or twisting of cables connected to the sampler bar, and to reduce the noise generated when transmitting and receiving communication with a power supply connected by a cable. It relates to an independent measurement borehole physical exploration sensor operating device that can increase the accuracy of the measurement signal by excluding the influence.

Physical exploration is a method of examining the properties of geological structures and strata by directly and indirectly measuring and interpreting physical phenomena caused by differences in physical properties of materials constituting the land. Various types of oil, natural gas, metal, and geothermal heat It is an important exploration method applied to the exploration of rock resources under the soil in the field of energy resource exploration, civil engineering and construction resources, and pollution investigation of underground media.

In particular, the physical layer is a physical exploration technique that continuously measures the physical properties of rocks according to depths by inserting various physical property measurement equipment into the borehole, and is an exploration method that obtains useful information about the mechanical and hydraulic properties of the strata. According to the basic principle, physical sampling method is divided into electric sampling, radioactive sampling, sonic sampling, and other sampling methods.

When drilling an exploration hole from the surface to the ground for mineral resource exploration, environmental pollution and groundwater investigation, geothermal exploration, and ground investigation, the depth of the borehole is several tens to thousands of meters depending on the depth of the exploration object, and the size of the borehole It is designed in various sizes depending on the characteristics of the technology.

When a borehole is secured, various data are measured while descending the bottom of the borehole to the bottom of the borehole to increase the physical exploration sensor (hereinafter referred to as a sampler rod) in the form of a rod several meters long for imaging the borehole or measuring the properties of the ground. . At this time, the geombong is connected by a number of cables, and transmits the measured data to the observation terminal on the ground through the cable.

On the other hand, the number of cables connected to the inspection rod is often loosened under tension due to the weight of the inspection rod. However, in general, since the depth of the borehole exploration equipment is grasped using the length of the winch cable, there is a problem that it is impossible to grasp the exact depth when the cable length is loosened by tension.

In addition, in the case of the general borehole equipment, when the borehole exploration is in progress, the rotational force due to the twisting of the cable may be generated in the process of unwinding the cable from the winch, and as a result, the rotational force is transmitted to the borehole exploration equipment and sudden rotation may occur. Such rotation can be measured with a precision posture measuring device, but if the rotation speed becomes faster than the measurement interval, it is difficult to accurately measure, and there is a problem in that even if the measured value is corrected, there are many errors.

Publication Patent Publication No. 10-1999-0075023 (Publication date: 1999.10.05.)

The present invention has been devised to solve the above-mentioned problems, reduces measurement errors caused by loosening or twisting of cables connected to the sampler bar, directly measures the depth of the sampler bar, and occurs when transmitting and receiving communication with a power supply connected by a cable. An object of the present invention is to provide an independent measuring borehole physical exploration sensor operating device that can increase the accuracy of a measurement signal by excluding the influence of noise.

An independent measuring borehole physical exploration sensor operating apparatus according to an embodiment of the present invention for achieving the above object is built in a sampler rod measuring the physical properties of the ground while rising or falling along the borehole, and multiple in the sampler rod An electronic circuit board that controls the operation of the measurement sensors of the apparatus and receives and arranges data measured by each of the measurement sensors; A storage unit for storing data sorted by the electronic circuit board; A power supply unit supplying power to each component including the electronic circuit board, the storage unit, and the plurality of measurement sensors; And a connection part installed on the upper end of the sample layer rod and connected to a traction unit for raising or lowering the sample layer rod, wherein the sample layer rod mounts the storage unit on the electronic circuit board, and includes a plurality of the measurement sensors and the power supply unit. After being electrically connected with, it is sealed to prevent foreign matter from entering, and the connection part blocks the rotational force of the traction unit from being transmitted to the sample layer rod when the traction unit rotates less than a set number of times in the predetermined direction. When the part rotates in the predetermined direction more than the set number of times, it is fixed to the sample layer rod and is characterized in that it transmits rotational force.

The above-described independent measurement-type borehole physical exploration sensor operating apparatus further includes a three-axis high-precision gyro sensor for measuring the posture of the sampler rod, and the storage unit may store posture information data measured by the gyro sensor. In addition, the above-described stand-alone borehole physical exploration sensor operating apparatus further includes a pressure sensor for measuring the depth from the water surface, and the storage unit may store underwater depth information measured by the pressure sensor.

The geombong is connected to a variety of general-purpose winch (winch) can be raised or lowered.

According to the present invention, since there is an independent power source inside the sampler rod and can perform the function of processing and storing a measurement signal itself, there is no need for power supply or data communication through a cable connected to the ground, and thus the sampler rod and tow There is no limit to the way of bonding.

In addition, according to the present invention, since there is a degree of freedom in the coupling method between the inspection rod and the traction unit, rotation caused by the twisting of the cable connected to the inspection rod is not transmitted as it is, and even when the position change of the inspection rod occurs, such as the cable being stretched. The change can be accurately measured according to the posture measurement technology of the sample bar, enabling more accurate physical exploration.

1 is a view schematically showing an example of a specimen layer to which the present invention is applied.
FIG. 2 is a view schematically showing an example of installing an independent measurement borehole physical exploration sensor operating apparatus according to an embodiment of the present invention on the geombong rod of FIG. 1.
FIG. 3 is a diagram schematically showing another example of installing an independent measurement borehole physical exploration sensor operating apparatus according to an embodiment of the present invention on the geombong rod of FIG. 1.
4 is a view schematically showing the configuration of an independent measuring borehole physical exploration sensor operating apparatus according to an embodiment of the present invention.
5 is a view schematically showing an example of mounting the storage unit of FIG. 4.
FIG. 6 is a view illustrating the principle of posture measurement by the gyro sensor of FIG. 4.

Hereinafter, some embodiments of the present invention will be described through exemplary drawings. In describing reference numerals in the components of each drawing, the same components are denoted by the same reference numerals as much as possible even though they are displayed in different drawings. In addition, in describing embodiments of the present invention, when it is determined that detailed descriptions of related well-known configurations or functions interfere with understanding of the embodiments of the present invention, detailed descriptions thereof will be omitted.

In addition, in describing the components of the embodiments of the present invention, terms such as first, second, A, B, (a), and (b) may be used. These terms are only for distinguishing the component from other components, and the nature, order, or order of the component is not limited by the term. When a component is described as being "connected", "coupled" or "connected" to another component, the component may be directly connected, coupled or connected to the other component, but the component and the other components It will be understood that another component may be "connected", "coupled" or "connected" between the elements.

1 is a view schematically showing an example of a specimen layer to which the present invention is applied.

When the borehole 10 is secured to the formation, the geombong rod 20 made of a rod shape of several meters is put into the borehole 10. At this time, the geombong (20) is connected through a winch (winch) cable and the towing unit 30, descends to the floor along the borehole 10 and then ascends to measure the geophysical properties including the image in the borehole 10 do. On the other hand, the acquisition of accurate data is one of the most important requirements in a device for measuring geophysical properties. In the case of a general physical exploration device, data is transmitted/received through a cable connected between the ground rod and the observation terminal on the ground, and the observation terminal supplies power to the ground rod through the connection cable, transmits control data, and measures data from the ground rod. To receive.

However, such a general physical exploration device may be deteriorated due to a time delay during which measurement data is transmitted to an observation terminal through a connection cable, power supply through a cable, and electrical noise generated by data transmission/reception. There is a problem that the reliability of data is poor.

In addition, the connection cable of a general physical exploration device may generate a rotational force due to the twisting of the cable in the process of unwinding the cable from the winch, and when this rotational force is transmitted to various sensors of the sampler rod, it is measured by various sensors of the sampler rod. The data itself needs to be calibrated, and when the measurement interval is not enough, there is also a problem that the posture measurement data for calibration may not be accurate.

Therefore, the independent measurement borehole physical exploration sensor operating apparatus according to the present invention seeks to obtain accurate geophysical measurement data by excluding power supply and communication connection through a cable between the geom pole and the ground observation terminal.

FIG. 2 is a view schematically showing an example of installing an independent measurement borehole physical exploration sensor operating apparatus according to an embodiment of the present invention on the geombong rod of FIG. 1.

Referring to Figure 2, the geombongbong 20 according to an embodiment of the present invention can be separated into at least two or more parts. For example, the sample layer 20 may be divided into a first portion and a second portion. At this time, the first portion includes an insertion portion 34 that is inserted into the interior of the second portion 36 in the opposite direction, and the insertion portion 34 is provided on the outer circumferential surface of the insertion portion 34 with the second portion 36 ) When inserted and inserted into the inside of the second portion 36, it is in close contact with the inner surface of the plurality of rubber rings 32 to prevent foreign matter from being inserted.

In addition, the connecting portion 33 connecting the specimen layer 20 and the traction unit 30 is a traction unit even if the traction unit 30 rotates while the specimen layer 20 is raised or lowered in the borehole 10. In order to prevent the rotation of (30) from being transmitted to the specimen layer 20, it is preferable that the movement is separated from the specimen layer 20. However, depending on the case, it is necessary to rotate the specimen bar 20 by an angle set in the direction set in the borehole 10. In order to control the rotation of the sample layer rod 20 in such a case, the connecting portion 33 may be selectively fixed to the sample layer rod 20 to transmit rotation of the traction unit 30 to the sample bar 20. At this time, the method of fixing the connecting portion 33 to the sample layer 20 may be fixed to the sample layer 20 when the connecting portion 33 is rotated more than a set number of times in a certain direction. However, as described herein, the method of fixing the connecting portion 33 to the sample layer 20 is merely an example for understanding, and it is possible to selectively fix the connection portion 33 to the sample layer 20 by variously modified methods. Yes, of course.

Independent measuring borehole physical exploration sensor operating device according to an embodiment of the present invention is installed after being fixed to the inner side of the first part or the second part after separating the sample bar 20 into a first part and a second part.

FIG. 3 is a view schematically showing another example of installing an independent measurement borehole physical exploration sensor operating apparatus according to an embodiment of the present invention on the geombong rod of FIG. 1.

Referring to Figure 3, the geombong (20) is provided with an inlet (22) on one side, through the inlet (22), the independent measurement-type borehole physical exploration sensor operating device according to an embodiment of the present invention through the sampler (20 ). At this time, the sample layer 20 is inserted into the independent measurement-type borehole physical exploration sensor operating device through the inlet 22 and fixed, and then the inlet 22 is sealed with a cover 24 to remove foreign substances such as groundwater and soil. It is preferable not to enter the inside of the sample layer (20).

Here, the method of mounting and operating the independent measurement-type borehole physical exploration sensor operating apparatus shown in FIGS. 2 and 3 to the inside of the sampler rod 20 is merely an example for understanding, and is provided in the interior of the sampler rod 20. Various modifications can be used to mount. In addition, although FIG. 2 and FIG. 3 show that the independent measurement type borehole physical exploration sensor operating device is mounted inside the upper end of the specimen bar 20, the positions where the independent measurement type borehole physical exploration sensor operating device is mounted are variously modified. Of course it can be.

4 is a view schematically showing the configuration of an independent measuring borehole physical exploration sensor operating apparatus according to an embodiment of the present invention.

Referring to FIG. 4, the independent measurement-type borehole physical exploration sensor operating apparatus 100 according to an embodiment of the present invention includes an electronic circuit board 110, a storage unit 120, a power supply unit 130, and a gyro sensor 140. , It may include a pressure sensor 150 and a plurality of measurement sensors 160.

The electronic circuit board 110 is built up in the specimen layer 20 measuring the physical properties of the ground while rising or descending along the borehole 10, and operating the plurality of measurement sensors 160 inside the specimen layer 20 And control and receive data measured by each measurement sensor 160. That is, the electronic circuit board 110 receives geophysical information such as electrical conductivity, density, seismic velocity, radioactivity, change in pore size, flow velocity, temperature, etc. measured by the plurality of measurement sensors 160. At this time, the electronic circuit board 110 sorts data received from each measurement sensor 160 of the sample bar 20 according to the type and reception time of each measurement sensor, and transmits the data to the storage unit 120.

The storage unit 120 stores data arranged by the electronic circuit board 110. At this time, the storage unit 120 receives data measured by various measurement sensors 160 through the electronic circuit board 110 and stores them in real time. In this case, the electronic circuit board 110 maps the identification information for each measurement sensor 160 and the reception time information of data received from each measurement sensor 160 together and transmits it to the storage unit 120. desirable. In addition, the storage unit 120 is detachably connected to the electronic circuit board 110 is preferably implemented to store the data measured by each measurement sensor 160. For example, the storage unit 120 may be implemented as a Secure Digital (SD) memory card or may be implemented as a Universal Serial Bus (USB) memory, and as illustrated in FIG. 5, connection of the electronic circuit board 110 The terminal 122 may be detachably connected. Through this, after the physical exploration of the borehole 10 using the specimen rod 20 is completed, the user can easily check the measured data by separating only the storage unit 120 from the electronic circuit board 110.

The power supply unit 130 supplies power of a voltage set to various components of the independent measurement-type borehole physical exploration sensor operating apparatus 100 including the electronic circuit board 110 and the storage unit 120. At this time, the power supply unit 130 monitors the power supply state for each component including the gyro sensor 140, the pressure sensor 150, and the plurality of measurement sensors 160 through the electronic circuit board 110, In addition, power can be supplied separately for each component according to the power supply state. Through such a configuration, the independent measurement-type borehole physical exploration sensor operating apparatus 100 according to the embodiment of the present invention can measure the measurement data measured by the measurement sensors 160 in an independent manner in the sampler 20 Can be received and stored.

In addition, since the independent measurement type borehole physical exploration sensor operating apparatus 100 according to an embodiment of the present invention can separate the movement of the cable and the movement of the specimen layer 200, the rotational force due to the twist of the cable is applied to the specimen layer. It prevents the problem that error may occur in the measurement data because it is not transmitted, and it is possible to stably obtain accurate measurement data.

The gyro sensor 140 measures the posture of the sample layer 20.

The geombong (20) may have its slope, ascending or descending speed change, rotation, or the like during the ascent or descent along the borehole (10). As described above, data measured in a state in which a slope, a rise or fall speed change, or rotation occurs may include errors due to a slope, a rise or fall speed change, rotation, and the like. Therefore, as shown in FIG. 6, the gyro sensor 140 detects a change in the posture of the sample bar 20 when a movement such as a change in the slope, ascending or descending speed, or rotation occurs in the sample bar 20 and tilts the sensor. , Change in slope, angular velocity, angular velocity, etc. are measured in real time. In this case, the storage unit 120 stores the data measured by the gyro sensor 140 through an electronic circuit board. At this time, it is preferable that the storage unit 120 stores the data measured by the gyro sensor 140 by matching the occurrence time of an event such as a change in slope and a change in angular velocity.

Through this, the independent measurement-type borehole physical exploration sensor operating apparatus 100 according to an embodiment of the present invention accurately measures the posture of the sampler rod 20 using a 3-axis high-precision gyro sensor, and the sampler rod 20 It is possible to correct the error due to the occurrence of slope, angular velocity change, etc.

The pressure sensor 150 measures the depth from the ground water level. At this time, the pressure sensor 150 measures the depth at a set cycle, and transmits the measured depth to the storage unit 120 through the electronic circuit board in real time. In this case, the storage unit 120 stores the depth received from the pressure sensor 150 by matching the occurrence time of the event.

On the other hand, in the connection of the inspection rod and the winch cable, since the independent layered borehole physical exploration sensor operating device does not need to supply or transmit data through the cable, it separates the movement of the winch cable and the movement of the inspection rod, and the rotational force of the winch cable A decoupler may be attached that prevents direct transfer to this sample layer.

Through this, the independent layered borehole physical exploration sensor operating apparatus 100 according to an embodiment of the present invention can accurately grasp the depth of the actual equipment because there is no error due to the cable between the specimen layer 20 and the manager terminal. have.

Although the embodiments according to the present invention have been described above, they are merely exemplary, and those skilled in the art will understand that various modifications and equivalent ranges of the embodiments are possible therefrom. Therefore, the protection scope of the present invention should be defined not only by the following claims, but also by the equivalents thereof.

10: borehole 20: geombong
30: towing unit
100: stand-alone borehole physical exploration sensor operating device
110: electronic circuit board 120: storage unit
130: power supply 140: gyro sensor
150: pressure sensor 160: measurement sensor

Claims (4)

It is built in a sample layer measuring the physical properties of the ground as it rises or falls along a borehole, controls the operation of a plurality of measurement sensors inside the sample layer, and receives and sorts data measured by each measurement sensor. Electronic circuit boards;
A storage unit for storing data sorted by the electronic circuit board;
A power supply unit supplying power to each component including the electronic circuit board, the storage unit, and the plurality of measurement sensors; And
It is installed on the upper end of the specimen layer rod, and includes a connecting portion connected to a traction unit for raising or lowering the specimen layer rod,
The sample layer rod is mounted on the electronic circuit board and electrically connected to a plurality of the measurement sensors and the power supply unit, and then sealed to prevent foreign matter from entering therein.
The connecting portion is blocked so that the rotational force of the traction portion is not transmitted to the sample layer rod when the traction portion rotates less than a set number of times in a certain direction, but is fixed to the sample layer rod when the traction portion rotates more than the set number of times in a certain direction. Independent measuring borehole physical exploration sensor operating device, characterized in that to transmit the rotating force.
According to claim 1,
Further comprising a three-axis high-precision gyro sensor for measuring the posture of the sample layer,
The storage unit is an independent measurement type borehole physical exploration sensor operating device, characterized in that for storing posture information data measured by the gyro sensor. According to claim 1,
Further comprising a pressure sensor for measuring the depth from the ground water level,
The storage unit is an independent measurement type borehole physical exploration sensor operating device characterized in that it stores underwater depth information measured by the pressure sensor. According to claim 1,
The geombong is connected to a variety of general-purpose winch (winch), the independent measurement type borehole physical exploration sensor operating device, characterized in that it can be raised or lowered.

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