CN218350518U - Geological in-vivo information detection device based on magnetic induction communication - Google Patents
Geological in-vivo information detection device based on magnetic induction communication Download PDFInfo
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- CN218350518U CN218350518U CN202221407810.5U CN202221407810U CN218350518U CN 218350518 U CN218350518 U CN 218350518U CN 202221407810 U CN202221407810 U CN 202221407810U CN 218350518 U CN218350518 U CN 218350518U
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Abstract
The utility model discloses a geological in-vivo information detection device based on magnetic induction communication, which comprises a detection unit and a remote data transmission unit, wherein the detection unit is formed by combining a plurality of discrete detection units and a combined detection unit from top to bottom, and the combined detection unit is arranged at the bottom; the discrete detection unit comprises a first MCU, a sensor unit connected with the first MCU, a magnetic induction transmitting circuit and a magnetic induction receiving circuit, and the combined detection unit comprises a steel pipe and discrete detection units positioned at two ends of the steel pipe. The utility model discloses can be based on nimble quantity, the position of adjusting discrete detection unit and combination detection unit of on-the-spot drilling data, will be discrete detection unit and lay in the frequent region of geology change and encrypt, realize the high accuracy continuous measurement of small deformation, will make up detection unit and lay in the difficult region that changes of geology, fixed point sampling ensures that the signal upwards transmits. Thereby reducing cost and loss and having strong applicability.
Description
Technical Field
The utility model relates to an underground magnetic induction communication device especially relates to an information detection device in geology based on magnetic induction communication.
Background
The mountainous and hilly areas in China occupy about 65% of the territorial area of China, the geological conditions are complex, and serious life and property losses are caused by frequent geological disasters such as landslides, debris flows and the like. Natural disasters such as landslide and debris flow are considered to be finally outbreaks due to the fact that micro deformations occurring in the natural disasters gradually accumulate and exceed a certain threshold value. Therefore, it is necessary to accurately and continuously monitor the micro-deformation of each stratum in the geologic body.
Most of the existing geological in-vivo information detection devices are formed by uniformly arranging sensors and communication units on a coherent rigid body and vertically embedding the rigid body into a well, and have the defects that when a certain stratum is slightly deformed and other layers are not deformed, due to the constraint of the rigid body, a collection node positioned on a deformation layer cannot be deformed and corresponding deformation data cannot be generated, so that the traditional scheme is not suitable for collecting the slight deformation; when a certain stratum is greatly deformed, the rigid body of the stratum can be deformed to a large degree, and the acquisition nodes positioned on the non-deformed stratum or the small deformed stratum can also be greatly deformed due to rigid body constraint, so that the sensors of other stratums on the rigid body acquire data which cannot reflect the real movement of the stratum, and the traditional scheme is not suitable for acquiring large deformation.
In addition, according to well data, the strata of a geologic body are generally divided into a plurality of layers from top to bottom, and each layer has different characteristics, for example, the uppermost layer is a loosely-accumulated layer such as silt, the middle-upper layer is a relatively stable stratum, the middle-lower layer is an unstable stratum, and the lower part is bedrock. The stability of each layer is different due to different stratum structures, for example, according to a drilling sampling result of a certain mining area, 5 different types of soil and rock layers including a sandy mud layer, limestone, medium-grain sandstone, a coal bed and granite form a mine geological environment from top to bottom in sequence, the sandy mud layer and the chicken-nest-shaped coal bed are easier to deform and can be divided into unstable areas, and the limestone, the medium-grain sandstone, a layered thick coal bed and the granite are not easy to deform and can be divided into stable areas. In engineering practice, a few particular geological structures, which are morphologically complex and inconvenient to stratify, should be considered as unstable regions. For an unstable area, a detection device is actually arranged in an encrypted manner, so that the accuracy of data is ensured, and for a stable area, the detection device can be properly reduced and is only used for transmitting signals, so that the cost and the loss are reduced. But there is currently no such device.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a solve above-mentioned problem, can be according to the stratigraphic structure characteristics, thereby nimble adjustment, thereby the realization carries out accurate, continuous monitoring to the small deformation of the internal different stratums of geology, an information detection device in the geology based on magnetic induction communication.
In order to achieve the above purpose, the utility model adopts the technical scheme that: a geological in-vivo information detection device based on magnetic induction communication comprises a detection unit located underground and a remote data transmission unit located on the ground, wherein the detection unit is vertically arranged in a drilling well, and the bottom of the detection unit is located in bedrock;
the detection unit is formed by combining a plurality of discrete detection units and a combined detection unit from top to bottom, and the combined detection unit is arranged at the lowest part;
the discrete detection unit comprises a first MCU, a sensor unit connected with the first MCU, a magnetic induction transmitting circuit and a magnetic induction receiving circuit, and the combined detection unit comprises a steel pipe and discrete detection units positioned at two ends of the steel pipe;
in the discrete detection units, the sensor unit is used for sending sensor data to a first MCU, the magnetic induction receiving circuit is used for receiving magnetic induction signals of adjacent discrete detection units below the sensor unit and converting the magnetic induction signals into lower-level electric signals to be sent to the first MCU, the first MCU is used for splicing the sensor data and the lower-level electric signals into a main-level electric signal, and the magnetic induction transmitting circuit is used for converting the main-level electric signal into magnetic induction signals and transmitting the magnetic induction signals;
the remote data transmission unit comprises a second MCU, a ground magnetic induction receiving circuit, an RS232 communication interface and a wireless communication module, wherein the ground magnetic induction receiving circuit, the RS232 communication interface and the wireless communication module are connected with the second MCU, and the ground magnetic induction receiving circuit is used for communicating with a magnetic induction transmitting circuit in an adjacent discrete detection unit.
Preferably, the method comprises the following steps: the sensor unit comprises a temperature and humidity sensor and an inclination sensor, and the sensor data comprises temperature and humidity data and inclination data.
Preferably, the method comprises the following steps: the magnetic induction transmitting circuit comprises an MOS chip, a driver of the MOS chip and a transmitting coil, wherein the MOS chip and the driver of the MOS chip are connected with a first MCU and used for converting the current-level electric signal of the first MCU into a magnetic induction signal, and the transmitting coil is connected with the MOS chip and the driver of the MOS chip and used for transmitting the magnetic induction signal.
Preferably, the method comprises the following steps: the magnetic induction receiving circuit comprises a receiving coil and a signal amplification filtering and demodulation unit, wherein the receiving coil is connected with the signal amplification filtering and demodulation unit and used for receiving magnetic induction signals of the adjacent discrete detection units below and sending the magnetic induction signals into the signal amplification filtering and demodulation unit, and the signal amplification filtering and demodulation unit is connected with a first MCU and used for converting the magnetic induction signals into subordinate electric signals and sending the subordinate electric signals into the first MCU.
Preferably, the method comprises the following steps: and power supply units are arranged in the discrete detection unit and the remote data transmission unit.
Preferably, the method comprises the following steps: the distance between the adjacent discrete detection units is not more than 4 meters.
Lay in reality the utility model discloses the time, can be according to the drilling data at scene, carry out the analysis to structure, the thickness on stratum, artificially divide into stable region and unstable region, lay the combination detection unit in stable region department, unstable region lays discrete detection unit, and lays comparatively sparsely in the stable region, can fixed sampling, and carry out signal transmission can, in unstable region, suitably encrypt to the small deformation on this stratum is gathered to the accuracy.
Compared with the prior art, the utility model has the advantages of:
1. flexible measurement and high precision. The underground detection unit is formed by combining a plurality of discrete detection units and combined detection units, the number and the positions of the discrete detection units and the combined detection units can be reasonably arranged and adjusted according to field drilling data, the discrete detection units are arranged in a region with frequent geological change and are arranged in an encrypted manner, so that high-precision and continuous measurement of micro deformation is realized, the combined detection units are arranged in a region with difficult geological change, fixed-point sampling is carried out, and the upward transmission of signals is ensured by starting and stopping, so that the cost is reduced, and the loss is reduced.
2. The applicability is strong. The discrete detection unit and the combined detection unit are communication nodes, and communicate through magnetic induction signals, when the stratum where the communication nodes are located has strong magnetic field interference, the steel pipe can shield an external magnetic field to a certain degree, and the steel pipe is arranged in a stable area, such as bedrock and stable rock, and can play a role in protecting the discrete detection unit, and the length of the steel pipe can be adjusted as required. Therefore, the combined layout mode of the discrete detection units and the combined detection units can ensure the precision of the device, enhance the stability of the communication link, protect the device and increase the applicability of the device.
Drawings
FIG. 1 is a schematic diagram of a configuration for installation based on in-situ logging data;
FIG. 2 is a schematic structural view of the present invention after the strata in FIG. 1 are changed;
FIG. 3 is a schematic diagram of a remote data transfer unit;
FIG. 4 is a schematic diagram of a discrete detection unit;
FIG. 5 is a schematic diagram of an architecture for installation according to another field logging data.
In the figure: 1. a discrete detection unit; 2. a combined detection unit; 3. a remote data transmission unit; 4. a first formation layer; 5. a second earth formation; 6. a third formation; 7. a bedrock.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
Example 1: referring to fig. 1-4, the geological in-vivo information detection device based on magnetic induction communication comprises a detection unit located underground and a remote data transmission unit 3 located on the ground, wherein the detection unit is vertically arranged in a drilling well, and the bottom of the detection unit is located in bedrock 7;
the detection unit is formed by combining a plurality of discrete detection units 1 and a combined detection unit 2 from top to bottom, and the combined detection unit 2 is arranged at the lowest part;
the discrete detection unit 1 comprises a first MCU, a sensor unit connected with the first MCU, a magnetic induction transmitting circuit and a magnetic induction receiving circuit, and the combined detection unit 2 comprises a steel pipe and discrete detection units 1 positioned at two ends of the steel pipe;
in the discrete detection unit 1, the sensor unit is used for sending sensor data to a first MCU, the magnetic induction receiving circuit is used for receiving magnetic induction signals of the adjacent discrete detection unit 1 below and converting the magnetic induction signals into lower-level electric signals to be sent to the first MCU, the first MCU is used for splicing the sensor data and the lower-level electric signals into local-level electric signals, and the magnetic induction transmitting circuit is used for converting the local-level electric signals into magnetic induction signals and transmitting the magnetic induction signals;
the remote data transmission unit 3 comprises a second MCU, a ground magnetic induction receiving circuit, an RS232 communication interface and a wireless communication module, wherein the ground magnetic induction receiving circuit, the RS232 communication interface and the wireless communication module are connected with the second MCU, and the ground magnetic induction receiving circuit is used for communicating with a magnetic induction transmitting circuit in the adjacent discrete detection unit 1.
In this embodiment, the sensor unit includes a temperature and humidity sensor and an inclination sensor, and the sensor data includes temperature and humidity data and inclination data. But not limited to, according to the actual geological condition that needs to be detected, sensors such as a vibration sensor, a geomagnetic sensor and a stress sensor can be arranged.
In this embodiment, magnetic induction transmitting circuit includes MOS chip and its driver and transmitting coil, first MCU is connected to MOS chip and its driver for convert first MCU's this grade of signal of telecommunication into magnetic induction signal, transmitting coil connects MOS chip and its driver, is used for transmitting magnetic induction signal.
The magnetic induction receiving circuit comprises a receiving coil and a signal amplification filtering and demodulating unit, wherein the receiving coil is connected with the signal amplification filtering and demodulating unit and used for receiving magnetic induction signals of the adjacent discrete detection unit 1 below and sending the magnetic induction signals into the signal amplification filtering and demodulating unit, and the signal amplification filtering and demodulating unit is connected with a first MCU and used for converting the magnetic induction signals into subordinate electric signals and sending the subordinate electric signals into the first MCU.
And power supply units are arranged in the discrete detection units 1 and the remote data transmission unit 3, and the distance between every two adjacent discrete detection units 1 is not more than 4 meters.
In this embodiment, according to the on-site drilling data, the stratum from the ground to the bedrock 7 is divided into three layers, namely a first stratum 4, a second stratum 5 and a third stratum 6; in this embodiment, the first stratum 4 is a loosely-piled layer composed of materials such as silt, the second stratum 5 is a relatively stable rock stratum, and the third stratum 6 is an unstable rock stratum. The first and third layers of geological activity are frequent and may be divided into zones of instability, and the second and bedrocks 7 may be divided into zones of stability.
The layout method comprises the following steps: the combined detection unit 2 is arranged at the bottommost bedrock 7, the length of the combined detection unit is adjusted according to the depth of the bedrock 7, and the adjustment principle is as follows: the top of the bedrock 7 is slightly higher than the top of the combined detection unit 2. And after the arrangement of the combined detection units 2 in the bedrock 7 is finished, grouting to form a stable substrate, judging whether the stratum above the bedrock 7 is a stable area, if the stratum is the stable area, arranging the combined detection units 2 again, and if the stratum is an unstable area, arranging the discrete detection units 1, and the like until the stratum is arranged to the earth surface. In the stratum structure shown in fig. 1, a third stratum 6 above a bedrock 7 is an unstable area, so discrete detection units 1 are arranged, a second stratum 5 is a stable area, a combined detection unit 2 is arranged, a first stratum 4 is an unstable area, and the discrete detection units 1 are arranged. The combined detection unit 2 and the discrete detection unit 1 are communication nodes, the distance between the communication nodes is not more than 4m for ensuring that each communication node can stably communicate, and the discrete detection units 1 are arranged in an encrypted manner at a distance of about 20cm for accurately acquiring the micro deformation of the stratum in an unstable area with high humidity.
The utility model discloses combine simple software can accomplish the transmission of signal, its transfer mode is: the adjacent discrete detection units 1 are sequentially transmitted upwards step by step until the signals are transmitted to the remote data transmission unit 3. The method specifically comprises the following steps: the lowermost discrete detection unit 1 converts the acquired sensor data into magnetic induction signals to be transmitted, and the magnetic induction signals are received by the magnetic induction receiving circuit in the upper adjacent discrete detection unit 1 and converted into electric signals. The first MCU in the discrete detection unit 1 adjacent to the upper part splices the sensor signals collected by the sensor units connected with the first MCU with the lower-level electric signals to form the current-level electric signals and then emits the current-level electric signals. The present-stage electrical signal includes sensor information of the present-stage and lower-stage discrete detection units 1. And by analogy, the remote data transmission unit 3 which upwards transmits and splices step by step and finally on the ground can receive all the sensor information and send the information to a remote end.
Referring to fig. 2, after the device is arranged, the discrete detection units 1 are subjected to various uncertain attitude changes along with the deformation of the respective arrangement positions, such as rotation, inclination, translation in any direction or combination of the above states, and the discrete detection units 1 are independent and do not affect each other.
Example 2: referring to fig. 5, on the basis of embodiment 1, we install and lay the utility model according to another field logging information. Similarly, the stratum is divided into a stable area and an unstable area, in this embodiment, the stratum from the ground to the top of the bedrock 7 is only the first stratum 4 and the second stratum 5, the first stratum 4 is a loose accumulation layer formed by silt and other substances, and according to the method of embodiment 1, the stratum is divided into an unstable area, the second stratum 5 is a relatively stable rock layer, the second stratum 5 is connected with the bedrock 7, and the bedrock 7 is also a stable area, so that the thickness of the whole stable area is greater than the length of one combined detection unit 2, and after the combined detection unit 2 at the bottom is arranged, the combined detection unit 2 is still arranged until the unstable area.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (6)
1. The utility model provides an information detection device in geology based on magnetic induction communication, is including being located the detection unit in the underground and being located the long-range data transmission unit on ground, the detection unit is vertical to be laid in the well drilling, and the bottom is arranged in the basement rock, its characterized in that:
the detection unit is formed by combining a plurality of discrete detection units and a combined detection unit from top to bottom, and the combined detection unit is arranged at the lowest part;
the discrete detection unit comprises a first MCU, a sensor unit connected with the first MCU, a magnetic induction transmitting circuit and a magnetic induction receiving circuit, and the combined detection unit comprises a steel pipe and discrete detection units positioned at two ends of the steel pipe;
in the discrete detection units, the sensor unit is used for sending sensor data to a first MCU, the magnetic induction receiving circuit is used for receiving magnetic induction signals of adjacent discrete detection units below and converting the magnetic induction signals into lower-level electric signals to be sent to the first MCU, the first MCU is used for splicing the sensor data and the lower-level electric signals into a local-level electric signal, and the magnetic induction transmitting circuit is used for converting the local-level electric signal into magnetic induction signals and transmitting the magnetic induction signals;
the remote data transmission unit comprises a second MCU, a ground magnetic induction receiving circuit, an RS232 communication interface and a wireless communication module, wherein the ground magnetic induction receiving circuit, the RS232 communication interface and the wireless communication module are connected with the second MCU, and the ground magnetic induction receiving circuit is used for communicating with a magnetic induction transmitting circuit in an adjacent discrete detection unit.
2. The geological in-vivo information detection device based on magnetic induction communication according to claim 1, characterized in that: the sensor unit comprises a temperature and humidity sensor and an inclination sensor, and the sensor data comprises temperature and humidity data and inclination data.
3. The geological in-vivo information detection device based on magnetic induction communication according to claim 1, characterized in that: the magnetic induction transmitting circuit comprises an MOS chip, a driver of the MOS chip and a transmitting coil, wherein the MOS chip and the driver of the MOS chip are connected with a first MCU for converting the current-level electric signal of the first MCU into a magnetic induction signal, and the transmitting coil is connected with the MOS chip and the driver of the MOS chip for transmitting the magnetic induction signal.
4. The geological in-vivo information detection device based on magnetic induction communication according to claim 1, characterized in that: the magnetic induction receiving circuit comprises a receiving coil and a signal amplification filtering and demodulation unit, wherein the receiving coil is connected with the signal amplification filtering and demodulation unit and used for receiving magnetic induction signals of the adjacent discrete detection units below and sending the magnetic induction signals into the signal amplification filtering and demodulation unit, and the signal amplification filtering and demodulation unit is connected with a first MCU and used for converting the magnetic induction signals into subordinate electric signals and sending the subordinate electric signals into the first MCU.
5. The geological in-vivo information detection device based on magnetic induction communication according to claim 1, characterized in that: and power supply units are arranged in the discrete detection unit and the remote data transmission unit.
6. The geological in-vivo information detection device based on magnetic induction communication according to claim 1, characterized in that: the distance between the adjacent discrete detection units does not exceed 4 meters.
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| CN202221407810.5U CN218350518U (en) | 2022-06-08 | 2022-06-08 | Geological in-vivo information detection device based on magnetic induction communication |
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| CN202221407810.5U CN218350518U (en) | 2022-06-08 | 2022-06-08 | Geological in-vivo information detection device based on magnetic induction communication |
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