Dynamic monitoring system for water level and water temperature of deep groundwater

Abstract

The utility model relates to a dynamic monitoring system for water level and water temperature of deep groundwater. The system comprises a multifunctional exploring tube, a cable, a cable winch, a monitoring host, a field control terminal and a remote monitoring platform, wherein one end of the cable is connected with the multifunctional exploring tube, the other end of the cable is connected with the monitoring host after bypassing the cable winch, and the monitoring host is wirelessly connected with the field control terminal and the remote monitoring platform; the cable winch is used for winding and unwinding a cable so as to lower the multifunctional exploring tube into the exploring hole or lift the multifunctional exploring tube out of the exploring hole; the multifunctional exploring tube comprises an exploring tube body and an underground water information monitoring module which is arranged in the exploring tube body and is connected with the cable; the underground water information monitoring module is used for acquiring deep underground water information and sending the deep underground water information to the monitoring host through the cable; the monitoring host is used for sending underground water information to the field control terminal and the remote monitoring platform.

Description

Technical Field

[0001] The utility model relates to the technical field of groundwater level and water temperature monitoring, in particular to a deep groundwater level and water temperature dynamic monitoring system. Background Art

[0002] During the field drilling construction process, a monitoring system is needed to monitor groundwater to help engineers and geologists better understand the geological structure, evaluate the impact of groundwater on the project, and predict possible geological disasters. In addition, through monitoring data, the dynamic changes of groundwater resources can be discovered in a timely manner, providing a scientific basis for the long-term protection and management of groundwater. Therefore, a monitoring system is needed to monitor groundwater.

[0003] In the prior art, the rope sounding method (also known as electrical sounding) is often used to monitor groundwater. However, this method has problems such as discontinuous data, shallow measurement depth, and large errors in manual readings. Therefore, there is an urgent need to provide a deep groundwater level and temperature dynamic monitoring system to perform real-time dynamic monitoring of groundwater in the hole and provide accurate and continuous data support for engineering construction. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a deep groundwater level and temperature dynamic monitoring system.

[0005] In order to solve the above problems, the technical solution adopted by the utility model is:

[0006] A deep groundwater level and water temperature dynamic monitoring system, the system comprising: a multifunctional probe, a cable, a cable winch, a monitoring host, a field control terminal and a remote monitoring platform;

[0007] One end of the cable is connected to the multifunctional probe, and the other end is connected to the monitoring host after bypassing the cable winch, and the monitoring host is wirelessly connected to the field control terminal and the remote monitoring platform respectively;

[0008] The cable winch is used to retract and release the cable to lower the multifunctional probe into the detection hole, or to lift the multifunctional probe out of the detection hole;

[0009] The multifunctional probe comprises a probe body, and a groundwater information monitoring module arranged inside the probe body and connected to the cable; the groundwater information monitoring module is used to obtain deep groundwater information and send it to the monitoring host through the cable, and comprises: a water temperature monitoring module, a water level monitoring module, a water pressure monitoring module and a seepage measurement module, and the groundwater information comprises: water temperature, water level, water pressure, and water flow velocity and direction information;

[0010] The monitoring host is used to send the groundwater information to the on-site control terminal and the remote monitoring platform.

[0011] As an implementation mode of the utility model, the probe body comprises:

[0012] The upper shell is in the shape of a hollow cylinder, and a plurality of water-passing grooves are arranged on its bottom plate;

[0013] a hemispherical head located at the lower end of the upper shell;

[0014] A plurality of water-passing brackets are provided, wherein the top of each water-passing bracket is connected to the bottom plate, and the bottom is connected to the hemispherical head, and any two adjacent water-passing brackets form a water-passing window.

[0015] As an implementation mode of the utility model, the seepage measurement module comprises

[0016] A force-transmitting ball, which is composed of a permanent magnet, foam and an aluminum sphere, wherein the permanent magnet and foam are sealed in the aluminum sphere, and the force-transmitting ball remains suspended in water;

[0017] A wire-reeling and reeling machine is arranged on the bottom plate and connected to the monitoring host. A pull wire is arranged on the wire-reeling and reeling machine, and a free end of the pull wire is connected to the force-transmitting ball. When the pull wire is in a relaxed state, the force-transmitting ball can move freely.

[0018] The Hall sensor group is connected to the monitoring host and is used to detect the force-transmitting ball and send the detection data to the monitoring host to obtain the water flow velocity and direction information; it includes a plurality of the Hall sensors arranged at equal intervals along the circumferential direction of the bottom plate.

[0019] As an implementation mode of the utility model, a control module is further arranged above the upper shell, and the control module is respectively connected to the Hall sensor group, the reel-and-reel machine, the groundwater information monitoring module and the cable.

[0020] As an implementation mode of the utility model, a contact sensor connected to the control module is provided at the bottom of the hemispherical head.

[0021] As an implementation mode of the utility model, the water temperature monitoring module, the water level monitoring module and the water pressure monitoring module are all arranged on the inner wall of the upper shell.

[0022] As an implementation mode of the utility model, a row of strip-shaped holes is provided on the upper portion of the upper shell along its circumferential direction.

[0023] As an implementation mode of the utility model, the water temperature monitoring module is a temperature sensor, the water level monitoring module is a water level sensor, and the water pressure monitoring module is a piezoelectric pressure sensor.

[0024] As an implementation mode of the utility model, the monitoring host is wirelessly connected to the field control terminal via Bluetooth.

[0025] As an implementation mode of the utility model, the monitoring host is connected to the remote monitoring platform via a mobile network.

[0026] The beneficial effects of adopting the above technical solution are:

[0027] The deep groundwater level and water temperature dynamic monitoring system provided by the embodiment of the utility model has a simple structure, which ensures rapid deployment and use between different construction sites. The multifunctional probe and cable winch are easy to transport and operate. The on-site control terminal allows the user to wirelessly monitor and operate the system anytime and anywhere, which reduces the dependence on on-site equipment and improves the flexibility of work.

[0028] In addition, by setting up a cable winch, the long-distance multifunctional probe can be accurately placed and adjusted, and boreholes of different depths can be detected, ensuring that good operational stability and data accuracy can be maintained under great depth conditions. It is suitable for deep groundwater and has a wider range of applications.

[0029] In addition, continuous monitoring of the water environment is achieved, and the water temperature, water level, water pressure, and flow velocity and direction information of deep groundwater are obtained at the same time, and the changes of the above data are continuously recorded and tracked, which can ensure the real-time update and integrity of the data and provide reliable data support for long-term monitoring.

[0030] In addition, by setting up a monitoring host and multiple monitoring modules, automatic data collection and processing are achieved, reducing the frequency of manual operations and improving the reliability and ease of operation of the entire system. The automated data processing of the remote monitoring platform provides reliable comprehensive water monitoring reports for on-site construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 The utility model is a structural schematic diagram of a deep groundwater level and temperature dynamic monitoring system.

[0032] Figure 2 The utility model is a structural schematic diagram of a probe body.

[0033] Figure 3 It is a structural schematic diagram of an upper shell provided by the utility model.

[0034] Figure 4 It is an exploded view of a probe body provided by the utility model.

[0035] Figure 5It is an exploded view of another probe body provided by the utility model.

[0036] Figure 6 It is a schematic diagram of a bottom plate during a monitoring process provided by the utility model.

[0037] Among them: 100 detection hole, 1 multifunctional probe, 101 upper shell, 101-1 bottom plate, 101-2 water passage slot, 101-3 strip hole, 102 hemispherical head, 103 water passage bracket, 2 cable, 3 cable winch, 4 monitoring host, 5 field control terminal, 6 remote monitoring platform, 7 water temperature monitoring module, 8 water level monitoring module, 9 water pressure monitoring module, 11 seepage measurement module, 1101 force transmission ball, 1102 wire reel, 1103 wire pull, 1104 Hall sensor group DETAILED DESCRIPTION

[0038] In order to make the purpose, technical solutions and advantages of the utility model clearer, the utility model is clearly and completely described below in conjunction with specific embodiments.

[0039] The present invention provides a system for dynamically monitoring the water level and temperature of deep groundwater. Figure 1 As shown, the system includes: a multifunctional probe 1, a cable 2, a cable winch 3, a monitoring host 4, a field control terminal 5 and a remote monitoring platform 6;

[0040] One end of the cable 2 is connected to the multifunctional probe 1, and the other end is connected to the monitoring host 4 after bypassing the cable winch 3. The monitoring host 4 is wirelessly connected to the field control terminal 5 and the remote monitoring platform 6 respectively; Figure 1 As shown, the monitoring host 4 is connected to the field control terminal 5 via Bluetooth wireless; and is connected to the remote monitoring platform 6 via a mobile network;

[0041] The cable winch 3 is used to retract the cable 2 to lower the multifunctional probe 1 to the detection hole 100, or to lift the multifunctional probe 1 out of the detection hole 100;

[0042] The multifunctional probe 1 includes a probe body, and a groundwater information monitoring module arranged inside the probe body and connected to the cable; the groundwater information monitoring module is used to obtain deep groundwater information and send it to the monitoring host through the cable, and includes: a water temperature monitoring module 7, a water level monitoring module 8, a water pressure monitoring module 9 and a seepage measurement module 11, and the groundwater information includes: water temperature, water level, water pressure, and water flow velocity and direction information;

[0043] The monitoring host 4 is used to send the groundwater information to the field control terminal 5 and the remote monitoring platform 6. Of course, a display screen can also be provided on the monitoring host 4 to display the groundwater information.

[0044] The deep groundwater level and temperature dynamic monitoring system provided by the embodiment of the utility model is suitable for groundwater monitoring scenarios. The water temperature monitoring module 7 in the multifunctional probe 1 is used to measure water temperature, the water level monitoring module 8 is used to measure the height of the water level, the water pressure monitoring module 9 is used to measure water pressure, and the seepage measurement module 11 is used to measure water flow velocity and direction information; the multifunctional probe 1 and the monitoring module are made of corrosion-resistant and high-pressure resistant materials, and adopt a sealing design to prevent the influence of water and other environmental factors, so as to ensure their long-term stable operation.

[0045] When in use, after connecting the cable 2 to the multifunctional probe 1, the lowering speed of the multifunctional probe 1 is controlled by the cable winch 3, and the depth of the probe is monitored in real time to ensure that the cable 2 remains taut during the lowering process to prevent entanglement or damage; when the multifunctional probe 1 reaches the specified depth, the multifunctional probe 1 is started by the monitoring host 4 or the on-site control terminal 5, and real-time collection of water level, water temperature, water pressure and water flow velocity and direction information data is started. These data are transmitted to the monitoring host 4 via the cable 2, and after digital processing, they are wirelessly transmitted to the on-site control terminal 5 via Bluetooth, and finally the water level, water temperature, water pressure, water flow velocity and direction information in the borehole are displayed in real time on the digital display interface.

[0046] The deep groundwater level and water temperature dynamic monitoring system provided by the embodiment of the utility model has a simple structure, which ensures rapid deployment and use between different construction sites. The multifunctional probe 1 and the cable winch 3 are easy to transport and operate; the field control terminal 5 allows the user to wirelessly monitor and operate the system anytime and anywhere, reducing the dependence on field equipment and improving the flexibility of work;

[0047] In addition, by setting up the cable winch 3, the long-distance multifunctional probe 1 can be accurately placed and adjusted, and boreholes of different depths can be detected, ensuring that good operational stability and data accuracy can be maintained under great depth conditions. It is suitable for deep groundwater and has a wider range of applications.

[0048] In addition, continuous monitoring of the water environment is achieved, and the water temperature, water level, water pressure, and flow velocity and direction information of deep groundwater are obtained at the same time, and the changes of the above data are continuously recorded and tracked, which can ensure the real-time update and integrity of the data and provide reliable data support for long-term monitoring.

[0049] In addition, by setting up a monitoring host 4 and multiple monitoring modules, automatic data collection and processing are realized, the frequency of manual operation is reduced, and the reliability and ease of operation of the entire system are improved. The automatic data processing of the remote monitoring platform 6 provides a reliable comprehensive water body monitoring report for on-site construction.

[0050] The present invention is further described below with respect to the probe body and the monitoring module.

[0051] Regarding the structure of the probe body, in a possible implementation, as Figure 2-5 As shown, it includes:

[0052] The upper shell 101 is in the shape of a hollow cylinder, and a plurality of water-passing grooves 101-2 are arranged on the bottom plate 101-1 thereof; a row of strip-shaped holes 101-3 are arranged on the upper part of the upper shell 101 along its circumferential direction, which can remove the air in the chamber of the multifunctional probe 1 during the lowering process;

[0053] A hemispherical head 102, which is located at the lower end of the upper shell 101;

[0054] A plurality of water-passing brackets 103 are provided, wherein the top of each water-passing bracket 103 is connected to the bottom plate 101 - 1 , and the bottom is connected to the hemispherical head 102 , and any two adjacent water-passing brackets 103 form a water-passing window.

[0055] In the above case, if Figure 3 As shown, the water temperature monitoring module 7, the water level monitoring module 8, and the water pressure monitoring module 9 are all arranged on the inner wall of the upper shell 101, the water temperature monitoring module 7 is a temperature sensor, the water level monitoring module 8 is a water level sensor, and the water pressure monitoring module 9 is a piezoelectric pressure sensor.

[0056] Of course, to facilitate information transmission, a control module (not shown in the figure) is also provided on the upper part of the upper shell 101, and the control module is respectively connected to the Hall sensor group 1104, the reel-and-reel machine 1102, the groundwater information monitoring module and the cable 2.

[0057] Furthermore, a contact sensor (not shown in the figure) connected to the control module is provided at the bottom of the hemispherical head 102. When the contact sensor detects no water, the cable 2 is controlled by the monitoring host 4 to drive the multifunctional probe 1 to continue to be lowered; when water is detected, a signal is sent to the monitoring host 4 through the control module. At this time, the monitoring host 4 controls the cable 2 to be lowered to a preset depth (for example: the depth is consistent with the height of the probe body), thereby ensuring that the probe body is always in groundwater.

[0058] Furthermore, if Figure 4 and Figure 5As shown, the seepage measurement module 11 includes:

[0059] The force-transmitting ball 1101 is composed of a permanent magnet, foam and an aluminum sphere, and the permanent magnet and foam are sealed in the aluminum sphere. The density of the force-transmitting ball 1101 is close to that of water, so that the force-transmitting ball 1101 remains suspended in the water;

[0060] A wire-reeling and reeling machine 1102 is arranged on the bottom plate 101-1 and connected to the monitoring host 4. A pull wire 1103 is arranged on the wire-reeling and reeling machine 1102, and the free end of the pull wire 1103 is connected to the force-transmitting ball 1101. When the pull wire 1103 is in a relaxed state, the force-transmitting ball 1101 can move freely.

[0061] The Hall sensor is connected to the monitoring host 4, and is used to detect the force-transmitting ball 1101, and send the detection data to the monitoring host 4 to obtain the water flow velocity and direction information; it includes a plurality of the Hall sensors 1104 arranged at equal intervals along the circumferential direction of the bottom plate 101-1, and the Hall sensor 1104 can realize non-contact measurement.

[0062] In the initial state, the wire 1103 on the wire-reeling and wire-unreeling machine 1102 is in a tightened state. When the multifunctional probe 1 reaches the specified depth, the wire-reeling and wire-unreeling machine 1102 can be controlled by the monitoring host 4 to make the wire 1103 in a relaxed state. At this time, the force-transmitting ball 1101 moves under the action of the seepage. The density of the force-transmitting ball 1101 is close to that of water, so it moves horizontally to position a (such as Figure 6 As shown in FIG. 1 ), the length of the pull wire 1103 should control the movement of the force-transmitting ball 1101 in the water-passing bracket 103. The three Hall device position sensors jointly monitor the moving direction and distance of the force-transmitting ball 1101 with magnetization characteristics in the water-passing bracket 103, so that the motion vector data of the force-transmitting ball 1101 can be obtained based on the moving direction and distance combined with the unit time.

[0063] Of course, after obtaining the data, the monitoring host 4 can also control the wire-reeling machine 1102 to tighten the pull wire 1103 and pull the force-transmitting ball 1101 back to the initial position for the next measurement.

[0064] The seepage measurement module 11 provided by the utility model tracks and follows the water flow through the suspended force-transmitting ball 1101 and the Hall device position sensor, thereby realizing non-contact measurement with low resistance consumption. The monitoring process will not affect the tracking of the flow velocity and direction, and the water flow tracking accuracy is high, so the underground seepage flow velocity and direction can be detected at any time.

[0065] The specific implementation of the deep groundwater level and temperature dynamic monitoring system provided by the embodiment of the utility model is as follows:

[0066] (1) After the drilling is completed, the movement of the cable winch 3 is monitored and controlled by an encoder through the field control terminal 5, and the multifunctional probe 1 connected to the armored cable 2 is accurately placed in the drill hole.

[0067] (2) The multifunctional probe 1 is started through the monitoring host 4 or the field control terminal 5 to monitor the water level, water temperature, water pressure and seepage data at the bottom of the borehole. The data is transmitted to the monitoring host 4 through the cable 2 and digitized.

[0068] (3) The field control terminal 5 is connected to the monitoring host 4 via Bluetooth to record and display the water level, water temperature, water pressure and seepage data at the bottom of the borehole in real time. When abnormal data appears, the operator will adjust the movement of the winch to reposition the multifunctional probe 1 and perform multiple measurements to ensure the accuracy of the data.

[0069] (4) Upload the real-time monitoring data to the remote monitoring platform 6, conduct detailed analysis of the borehole water level, water temperature, water pressure and seepage data, and generate a complete monitoring report.

[0070] (5) Based on the data analysis results and drilling exploration data, the construction strategy is adjusted and the construction process is optimized to ensure the smooth progress of the project.

[0071] Of course, the data initially processed by the monitoring host 4 is sent to the remote monitoring platform 6 via the 4G network, and further processing and analysis can be performed, including:

[0072] 1) Use K-means algorithm for outlier detection. Cluster the water level, water temperature, water pressure and seepage data, calculate the center and distance of each cluster, identify points that deviate significantly from the center, and mark them as outliers. Outliers reflect possible problems on site, such as abnormal water level may indicate water leakage, abnormal water temperature may reflect changes in heat sources, abnormal water pressure indicates changes in underground pressure, and abnormal seepage may indicate changes in water flow patterns. Analyze and determine the specific cause of the problem through repeated measurements on site.

[0073] 2) Apply the Kalman filter algorithm to filter the data. The Kalman filter algorithm corrects noise and uncertainty through prediction and update steps to provide the best estimate of the system state. The filtered data is more stable, which helps to accurately reflect the changes in water level, water temperature, water pressure and seepage, and supports better management of drilling operations.

[0074] 3) Perform statistical analysis on the filtered data. Calculate the mean, variance, and standard deviation of the filtered water level, water temperature, water pressure, and seepage data. The mean reflects the central trend of the data, while the variance and standard deviation are used to assess the fluctuation and stability of the data. These statistics help understand the overall characteristics of the data and identify potential stability issues.

[0075] 4) Model the data using polynomial fitting. Use polynomial fitting methods to analyze the relationship between different data (water level, water temperature, water pressure and seepage) and well depth, capture nonlinear trends in the data, and predict future changes. The fitting coefficients are determined based on the least squares method. The fitting results reveal the changing trends of water level, water temperature, water pressure and seepage with well depth, providing a practical reference for drilling operations.

Claims

1. A deep groundwater level and temperature dynamic monitoring system, characterized in that: The system includes: a multifunctional probe, a cable, a cable winch, a monitoring host, a field control terminal and a remote monitoring platform; One end of the cable is connected to the multifunctional probe, and the other end is connected to the monitoring host after bypassing the cable winch, and the monitoring host is wirelessly connected to the field control terminal and the remote monitoring platform respectively; The cable winch is used to retract and release the cable to lower the multifunctional probe into the detection hole, or to lift the multifunctional probe out of the detection hole; The multifunctional probe comprises a probe body, and a groundwater information monitoring module arranged inside the probe body and connected to the cable; the groundwater information monitoring module is used to obtain deep groundwater information and send it to the monitoring host through the cable, and comprises: a water temperature monitoring module, a water level monitoring module, a water pressure monitoring module and a seepage measurement module, and the groundwater information comprises: water temperature, water level, water pressure, and water flow velocity and direction information; The monitoring host is used to send the groundwater information to the on-site control terminal and the remote monitoring platform.

2. A deep groundwater level and temperature dynamic monitoring system according to claim 1, characterized in that: The probe body comprises: The upper shell is in the shape of a hollow cylinder, and a plurality of water-passing grooves are arranged on its bottom plate; a hemispherical head located at the lower end of the upper shell; A plurality of water-passing brackets are provided, wherein the top of each water-passing bracket is connected to the bottom plate, and the bottom is connected to the hemispherical head, and any two adjacent water-passing brackets form a water-passing window.

3. A deep groundwater level and temperature dynamic monitoring system according to claim 2, characterized in that: The seepage measurement module comprises: A force-transmitting ball, which is composed of a permanent magnet, foam and an aluminum sphere, wherein the permanent magnet and foam are sealed in the aluminum sphere, and the force-transmitting ball remains suspended in water; A wire-reeling and reeling machine is arranged on the bottom plate and connected to the monitoring host. A pull wire is arranged on the wire-reeling and reeling machine, and a free end of the pull wire is connected to the force-transmitting ball. When the pull wire is in a relaxed state, the force-transmitting ball can move freely. The Hall sensor group is connected to the monitoring host and is used to detect the force-transmitting ball and send the detection data to the monitoring host to obtain the water flow velocity and direction information; it includes a plurality of the Hall sensors arranged at equal intervals along the circumferential direction of the bottom plate.

4. A deep groundwater level and temperature dynamic monitoring system according to claim 3, characterized in that: A control module is also arranged above the interior of the upper shell, and the control module is respectively connected to the Hall sensor group, the reel-and-reel machine, the groundwater information monitoring module and the cable.

5. A deep groundwater level and temperature dynamic monitoring system according to claim 4, characterized in that: A contact sensor connected to the control module is arranged at the bottom of the hemispherical head.

6. A deep groundwater level and temperature dynamic monitoring system according to claim 2, characterized in that: The water temperature monitoring module, the water level monitoring module and the water pressure monitoring module are all arranged on the inner wall of the upper shell.

7. A deep groundwater level and temperature dynamic monitoring system according to claim 2, characterized in that: The upper portion of the upper shell is provided with a row of strip-shaped holes along its circumferential direction.

8. A deep groundwater level and temperature dynamic monitoring system according to claim 1, characterized in that: The water temperature monitoring module is a temperature sensor, the water level monitoring module is a water level sensor, and the water pressure monitoring module is a piezoelectric pressure sensor.

9. A deep groundwater level and temperature dynamic monitoring system according to claim 1, characterized in that: The monitoring host is connected to the on-site control terminal via Bluetooth wireless.

10. A deep groundwater level and temperature dynamic monitoring system according to claim 1, characterized in that: The monitoring host is connected to the remote monitoring platform via a mobile network.

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