A Geological Exploration Groundwater Level Measurement System and Method

Abstract

The present application provides a geological exploration groundwater level measurement system and method. The groundwater level of a target geological exploration area is measured by a water level measuring instrument; the lowering distance of the measurement probe during the groundwater level measurement is segmented based on a preset step distance to obtain multiple descending segments during the groundwater level measurement; the offset state of the measurement probe in the horizontal direction within each descending segment is determined by the horizontal displacement collected within each descending segment; fluctuation analysis is performed on the response time of the signal monitoring end of the water level measuring instrument to the water contact signal in the electrical signal trigger record to obtain the fluctuation characteristics of the signal monitoring end to the water contact signal in the response time; the confidence deviation of the groundwater level measurement is determined according to all the offset states and fluctuation characteristics, and the water level measuring instrument is calibrated for confidence through the confidence deviation. By adopting the solution of the present application, multi-source error calibration during the groundwater level measurement can be realized to improve the confidence range of the groundwater level measurement result.

Description

Technical Field

[0001] The present application relates to the technical field of groundwater level measurement, and more specifically, to a groundwater level measurement system and method for geological exploration. Background Art

[0002] The groundwater level refers to the height of the groundwater surface relative to the Earth's surface, typically measured as the position of groundwater within a groundwater layer. Changes in the groundwater level reflect the amount, flow, and supply of groundwater, making it a crucial parameter in groundwater resource management, hydrogeological research, and water pollution control.

[0003] Groundwater level measurement in geological exploration is an important means to understand the distribution of groundwater resources and their dynamic changes. It is of great significance to regional water supply planning, environmental protection and geological disaster prevention. The measurement data directly affects water resource assessment, geological disaster warning and underground space development. However, in the existing technology, when measuring groundwater level using a water level meter, the existing method usually assumes that the side measuring probe of the water level meter moves along a vertical path. It does not fully consider that during the water level measurement process, the measuring probe may be affected by gravity eccentricity and collision during the falling process, resulting in non-vertical movement, which may lead to deviations in the measurement results. Therefore, how to realize multi-source error calibration in the groundwater level measurement process to improve the confidence range of the groundwater level measurement results has become a difficult problem faced by the industry. Summary of the Invention

[0004] The present application provides a groundwater level measurement system and method for geological exploration, which can realize multi-source error calibration in the groundwater level measurement process to improve the confidence range of the groundwater level measurement results.

[0005] In a first aspect, the present application provides a calibration method for groundwater level measurement in geological exploration, comprising the following steps:

[0006] Use water level measuring instruments to measure the groundwater level in the target geological exploration area;

[0007] Segmenting the lowering distance of the measuring probe of the water level measuring instrument during the groundwater level measurement process based on a preset step distance to obtain multiple descending segments during the groundwater level measurement process, and then collecting the horizontal displacement of the measuring probe in each descending segment;

[0008] Determining the offset state of the measuring probe in the horizontal direction in each descending section based on the acquired horizontal displacement in each descending section and the void structure characteristics of the target geological exploration area;

[0009] Obtain the electrical signal trigger records of the water level measuring instrument during historical measurements, perform fluctuation analysis on the response time of the signal monitoring end of the water level measuring instrument to the water contact signal in the electrical signal trigger records, and obtain the fluctuation characteristics of the signal monitoring end to the water contact signal in terms of response time;

[0010] Determine the confidence deviation of the groundwater level measurement based on all the offset states and the fluctuation characteristics, and perform confidence calibration on the water level measuring instrument through the confidence deviation.

[0011] In some embodiments, segmenting the lowering distance of the measurement probe of the water level measuring instrument during groundwater level measurement based on a preset step size to obtain multiple descending segments during the groundwater level measurement specifically includes:

[0012] Determine the preset step size during the groundwater level measurement process;

[0013] Use the preset step size as the segmentation interval;

[0014] Equally divide the lowering distance of the measurement probe of the water level measuring instrument during the groundwater level measurement process according to this segmentation interval to obtain multiple descending segments during the groundwater level measurement process.

[0015] In some embodiments, determining the offset state of the measurement probe in the horizontal direction within each descending segment through the horizontal displacement within each descending segment collected and the void structure characteristics of the target geological exploration area specifically includes:

[0016] Determine the environmental influence degree during the groundwater level measurement process based on the void structure characteristics of the target geological exploration area;

[0017] Determine the movement stability of the measurement probe during the descending process through the horizontal displacement within each descending segment collected;

[0018] Select a descending segment as the selected descending segment;

[0019] Determine the offset state of the measurement probe in the horizontal direction within the selected descending segment according to the horizontal displacement within the selected descending segment, the movement stability, and the environmental influence degree;

[0020] Continue to determine the offset state of the measurement probe in the horizontal direction within the remaining descending segments.

[0021] In some embodiments, determining the environmental influence degree during the groundwater level measurement process based on the void structure characteristics of the target geological exploration area specifically includes:

[0022] Obtain the void structure characteristics of the target geological exploration area;

[0023] Pre-train an environmental influence model;

[0024] Input the void structure feature into the environmental impact model, and use the output of the environmental impact model as the environmental impact degree of the groundwater level measurement process.

[0025] In some embodiments, performing a fluctuation analysis on the response time of the signal monitoring end of the water level gauge in the electrical signal trigger record to the water contact signal, and obtaining the fluctuation characteristics of the signal monitoring end to the water contact signal in the response time specifically includes:

[0026] Obtain the response time between the generation of the water contact signal and the response of the signal monitoring end for each electrical signal trigger event in the electrical signal trigger record;

[0027] Determine the collaborative deviation between the corresponding response times of each adjacent electrical signal trigger event, where two adjacent electrical signal trigger events in terms of occurrence time are used as adjacent electrical signal trigger events;

[0028] Determine the fluctuation characteristics of the signal monitoring end to the water contact signal in the response time through all the collaborative deviations.

[0029] In some embodiments, determining the confidence deviation of the groundwater level measurement according to all the offset states and the fluctuation characteristics specifically includes:

[0030] Merge all the offset states to obtain the offset trend value of the water level gauge in the groundwater level measurement process;

[0031] Determine the confidence deviation of the groundwater level measurement based on the offset trend value and the fluctuation characteristics.

[0032] In some embodiments, the water level gauge is an electrically contact-type water level measurement device.

[0033] In a second aspect, the present application provides a geological exploration groundwater level measurement system, including a water level gauge and a calibration unit, and the calibration unit includes:

[0034] A measurement module for measuring the groundwater level of a target geological exploration area using a water level gauge;

[0035] A processing module for segmenting the lowering distance of the measurement probe of the water level gauge during the groundwater level measurement process based on a preset step distance to obtain multiple descending segments during the groundwater level measurement process, and then collecting the horizontal displacement of the measurement probe within each descending segment;

[0036] The processing module is further configured to determine the offset state of the measurement probe in the horizontal direction within each descending segment through the horizontal displacement within each collected descending segment and the void structure feature of the target geological exploration area;

[0037] The processing module is further configured to obtain the electrical signal trigger records during the historical measurement of the water level gauge, perform fluctuation analysis on the response time of the signal monitoring end of the water level gauge to the water contact signal in the electrical signal trigger records, and obtain the fluctuation characteristics of the response time of the signal monitoring end to the water contact signal;

[0038] The execution module is configured to determine the confidence deviation of the underground water level measurement according to all the offset states and the fluctuation characteristics, and perform confidence calibration on the water level gauge through the confidence deviation.

[0039] In a third aspect, the present application provides a computer device, which includes a memory and a processor. The memory is used to store a computer program, and the processor is used to call and run the computer program from the memory, so that the computer device executes the above calibration method for underground water level measurement in geological exploration.

[0040] In a fourth aspect, the present application provides a computer-readable storage medium, in which instructions or codes are stored. When the instructions or codes run on a computer, the computer is caused to execute the above calibration method for underground water level measurement in geological exploration.

[0041] The technical solutions provided by the disclosed embodiments of the present application have the following beneficial effects:

[0042] In the present application, the underground water level of the target geological exploration area is measured by using a water level gauge; the lowering distance of the measurement probe of the water level gauge during the underground water level measurement is segmented based on a preset step distance to obtain multiple descending segments during the underground water level measurement, and then the horizontal displacement of the measurement probe in each descending segment is collected; the offset state of the measurement probe in the horizontal direction in each descending segment is determined according to the horizontal displacement in each collected descending segment and the void structure characteristics of the target geological exploration area; the electrical signal trigger records during the historical measurement of the water level gauge are obtained, and fluctuation analysis is performed on the response time of the signal monitoring end of the water level gauge to the water contact signal in the electrical signal trigger records to obtain the fluctuation characteristics of the response time of the signal monitoring end to the water contact signal; the confidence deviation of the underground water level measurement is determined according to all the offset states and the fluctuation characteristics, and the water level gauge is calibrated with confidence through the confidence deviation.

[0043] It can be seen that in this application, first, the offset state of the measurement probe in the horizontal direction within each descending section is determined based on the horizontal displacement within each collected descending section and the void structure characteristics of the target geological exploration area, which can effectively evaluate the influence of different geological environment conditions on the water level measurement data, strengthen the identification of the complexity of the geological environment and the errors caused by the offset of the measurement probe during the descending process, so as to eliminate the errors introduced by non-vertical movement during the falling process of the measurement probe in the subsequent process; second, by performing fluctuation analysis on the response time of the signal monitoring end of the water level measuring instrument to the water contact signal in the electric signal trigger record, the fluctuation characteristics of the signal monitoring end to the water contact signal in the response time are obtained. Considering the stability of the time response of the water level measuring instrument during signal transmission, the transmission performance of the water contact signal can be comprehensively evaluated to provide reliable data support for calibrating the measurement errors caused by the time delay, amplitude fluctuation, etc. of the water contact signal in the water level measuring instrument, which affect the accurate positioning of the water contact position; then, according to all the offset states and the fluctuation characteristics, the confidence deviation of the groundwater level measurement is determined, which can integrate the correction results of multiple error sources, effectively correct the groundwater level error measurement data, and improve the accuracy of the groundwater level measurement; finally, through the confidence deviation, confidence calibration is performed on the water level measuring instrument, reducing the deviation amplitude of the groundwater level measurement result of the water level measuring instrument, thereby improving the confidence level of the water level measurement result; in summary, this solution can achieve multi-source error calibration during the groundwater level measurement process to improve the confidence range of the groundwater level measurement result. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings. [[ID=৭]]

[0045] [[ID=৮]] Figure 1 [[ID=৯]]is an exemplary flowchart of a calibration method for groundwater level measurement in geological exploration according to some embodiments of the present application;

[0046] Figure 2 is an exemplary flowchart of determining the environmental impact degree according to some embodiments of the present application;

[0047] Figure 3 is an exemplary flowchart of determining the confidence deviation according to some embodiments of the present application;

[0048] Figure 4 is a schematic structural diagram of a calibration unit according to some embodiments of the present application;

[0049] Figure 5It is a schematic structural diagram of a computer device implementing a calibration method for underground water level measurement in geological exploration as shown in some embodiments of the present application. Detailed implementation manners

[0050] Next, the technical solutions in the embodiments of the present application will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present application. Apparently, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the protection scope of the present application.

[0051] Refer to Figure 1 , this figure is an exemplary flowchart of a calibration method for underground water level measurement in geological exploration as shown in some embodiments of the present application. The calibration method 100 for underground water level measurement in geological exploration mainly includes the following steps:

[0052] In step 101, a water level measuring instrument is used to measure the underground water level of a target geological exploration area.

[0053] It should be noted that the water level measuring instrument in the present application refers to an electric contact type water level measuring device, such as: an electric contact hanging weight type water level gauge, etc. This type of water level measuring instrument is a device for measuring the underground water level and is composed of a measuring probe, a signal transmission device, and a data receiving module.

[0054] Specifically, when implementing, a water level measuring instrument is used to measure the underground water level of a target geological exploration area, that is: start the water level measuring instrument to detect the depth of the underground water level, insert the measuring probe of the water level measuring instrument into the target geological exploration area, and make the measuring probe perform a descending operation. Among them, the water level measuring instrument drives by gravity or mechanical control to lower the measuring probe at a stable speed and records the current depth of the measuring probe in real time.

[0055] In step 102, based on a preset step distance, the lowering distance of the measuring probe of the water level measuring instrument during the underground water level measurement is segmented to obtain multiple descending segments during the underground water level measurement, and then the horizontal displacement of the measuring probe in each descending segment is collected.

[0056] In some embodiments, segmenting the lowering distance of the measuring probe of the water level measuring instrument during the underground water level measurement based on a preset step distance to obtain multiple descending segments during the underground water level measurement can be implemented by the following steps:

[0057] Determine the preset step distance of the underground water level measurement process;

[0058] Take the preset step distance as the segmentation interval;

[0059] The lowering distance of the measurement probe of the water level measuring instrument during the underground water level measurement is equally divided according to the segmentation interval, so as to obtain multiple descending segments during the underground water level measurement.

[0060] In specific implementation, the preset step distance refers to the fixed interval distance used to segment the lowering distance of the measurement probe during the underground water level measurement; the preset step distance of the underground water level measurement process can be determined in the following way, that is: the preset step distance of the underground water level measurement process can be set according to the depth range of the target geological exploration area and the performance of the measurement probe. Usually, the preset step distance is set to 0.5 meters. In other embodiments, other methods can also be used to set the preset step distance, which is not limited here; then, taking the preset step distance as the segmentation interval, the lowering distance of the measurement probe of the water level measuring instrument during the underground water level measurement is equally divided into multiple descending segments during the underground water level measurement according to this segmentation interval.

[0061] It should be noted that the descending segment in this application represents the falling interval of the measurement probe during the measurement, and each descending segment corresponds to a lowering distance of the measurement probe.

[0062] In addition, in specific implementation, the horizontal displacement of the measurement probe in each descending segment can be collected in the following way, that is: select a descending segment as the selected descending segment, collect the displacement in the horizontal direction between the starting point and the ending point of the selected descending segment through a displacement sensor, and take the collected displacement as the horizontal displacement of the measurement probe in the selected descending segment, and continue to collect the horizontal displacement of the measurement probe in the remaining descending segments. In other embodiments, other methods can also be used for collection, which is not specifically limited here.

[0063] It should be noted that the horizontal displacement in this application represents the horizontal movement distance of the measurement probe deviating from the vertical direction in the descending segment.

[0064] In step 103, the offset state of the measurement probe in the horizontal direction in each descending segment is determined based on the horizontal displacement in each descending segment collected and the void structure characteristics of the target geological exploration area.

[0065] In some embodiments, the offset state of the measurement probe in the horizontal direction in each descending segment determined based on the horizontal displacement in each descending segment collected and the void structure characteristics of the target geological exploration area can be implemented by the following steps:

[0066] Determine the environmental influence degree of the underground water level measurement process based on the void structure characteristics of the target geological exploration area;

[0067] Determine the movement stability of the measurement probe during the descending process through the horizontal displacement in each descending segment collected.

[0068] Select a descending segment as the selected descending segment;

[0069] Determine the offset state of the measurement probe in the horizontal direction within the selected descending segment according to the horizontal displacement, the motion stability, and the environmental influence degree within the selected descending segment;

[0070] Continue to determine the offset state of the measurement probe in the horizontal direction within the remaining descending segments.

[0071] Wherein, in some embodiments, refer to Figure 2 As shown, this figure is an exemplary flowchart for determining the environmental influence degree in some embodiments of the present application. In this embodiment, the environmental influence degree of the groundwater level measurement process can be determined based on the void structure characteristics of the target geological exploration area and can be implemented by the following steps:

[0072] First, in step 1021, obtain the void structure characteristics of the target geological exploration area;

[0073] Secondly, in step 1022, pre-train the environmental influence model;

[0074] Finally, in step 1023, input the void structure characteristics into the environmental influence model, and use the output of the environmental influence model as the environmental influence degree of the groundwater level measurement process.

[0075] In specific implementation, the void structure characteristics of the target geological exploration area can be obtained in the following way, that is: the void structure characteristics of the target geological exploration area can be obtained by consulting geological exploration reports, drilling logs and other materials. The void structure characteristics include parameter characteristics such as void ratio, pore morphology, permeability, and groundwater flow velocity. The pre-trained environmental impact model can be implemented in the following way, that is: the environmental impact model can be trained based on historical sample data and experimental results. For example, the training data set of the environmental impact model can be constructed through measured data, geological reports and simulation data, and the samples are labeled. Select the Support Vector Regression (SVR) model architecture and initialize the parameters. Then, perform data preprocessing, including standardizing numerical features and one-hot encoding categorical features, dividing the training set and the test set. Then, input the training set into the environmental impact model, optimize the model parameters through gradient descent or ensemble learning, and adjust the hyperparameters of SVR (such as regularization parameters, kernel function coefficients, and tolerance, etc.) using cross-validation to optimize the model performance, so that the model can more accurately output the environmental impact degree when processing the void structure characteristic data of the target geological exploration area. Then, use the test set to calculate the model performance verification indicators (such as Root Mean Square Error (RMSE), coefficient of determination R2, etc.) to evaluate the model performance. For example, when R2≥0.85, the model is considered qualified, thus completing the training of the environmental impact model. Among them, the environmental impact model is used to quantify the influence degree of the underground void environment on the vertical movement of the measurement probe (i.e., the environmental impact degree) based on the void structure characteristics of the target geological exploration area. In addition, the algorithm framework of the environmental impact model can adopt the support vector regression algorithm. In other embodiments, the algorithm framework of the environmental impact model can also adopt other algorithm structures, which are not limited here; furthermore, input the void structure characteristics into the environmental impact model, and use the output result of the environmental impact model as the environmental impact degree in the process of underground water level measurement.

[0076] It should be noted that the environmental impact degree in this application reflects the influence degree of the void structure of the target geological exploration area on the vertical movement process of the measurement probe during the underground water level measurement. The higher the environmental impact degree, the greater the influence degree of the void structure of the target geological exploration area on the vertical movement process of the measurement probe during the underground water level measurement. And the lower the environmental impact degree, the smaller the influence degree of the void structure of the target geological exploration area on the vertical movement process of the measurement probe during the underground water level measurement.

[0077] In addition, it should be noted that the motion stability reflects the stability of the vertical motion of the measurement probe during the descent. The larger the value corresponding to the motion stability, the higher the stability of the vertical motion of the measurement probe during the descent; the smaller the value corresponding to the motion stability, the lower the stability of the vertical motion of the measurement probe during the descent. As a preferred embodiment, the motion stability of the measurement probe during the descent can be determined by the horizontal displacement in each descent segment obtained by acquisition in the following manner, that is: the reciprocal of the variance of the horizontal displacements in all the descent segments obtained by acquisition can be used as the value reflecting the motion stability of the measurement probe during the descent. In other embodiments, other methods can also be used for determination, which is not limited here.

[0078] When specifically implemented, the deviation state of the measurement probe in the horizontal direction in the selected descent segment can be determined according to the horizontal displacement in the selected descent segment, the motion stability, and the environmental influence degree in the following manner, that is: first, the values corresponding to the motion stability and the environmental influence degree are weighted and summed. Among them, the value ranges of the weights of the motion stability and the environmental influence degree are both between 0 and 1, and the sum of the two weights is 1. Then, the result obtained by the above weighted summation is added with the value 1 and then multiplied by the horizontal displacement in the selected descent segment. Finally, the obtained product value is used as the deviation state of the measurement probe in the horizontal direction in the selected descent segment. In other embodiments, other methods can also be used for determination, which is not limited here.

[0079] It should be noted that the deviation state in the horizontal direction in this application represents the measurement error of the groundwater level measurement result caused by the deviation from the vertical direction during the descent of the measurement probe.

[0080] In step 104, the electrical signal trigger records of the water level measuring instrument during historical measurements are obtained, and the response time of the signal monitoring end of the water level measuring instrument to the water-touching signal in the electrical signal trigger records is analyzed for fluctuations to obtain the fluctuation characteristics of the response time of the signal monitoring end to the water-touching signal.

[0081] When specifically implemented, the electrical signal trigger events of the water level measuring instrument in the past six months can be obtained from the signal transmission device of the water level measuring instrument. The electrical signal trigger events include information such as the time stamp of each electrical signal trigger event (i.e., the occurrence time and the response time between the generation of the water-touching signal and the response of the signal monitoring end). All the obtained electrical signal trigger events are composed of the electrical signal trigger records of the water level measuring instrument during historical measurements. In other embodiments, other methods can also be used for acquisition, which is not specifically limited here.

[0082] It should be noted that the electrical signal trigger record in this application represents the set of electrical signal trigger events generated by the water level measuring instrument during historical measurements.

[0083] In some embodiments, the fluctuation analysis of the response time of the signal monitoring end of the water level measuring instrument to the water contact signal in the electrical signal trigger record is carried out to obtain the fluctuation characteristics of the signal monitoring end to the water contact signal in the response time, which can be realized by the following steps:

[0084] Obtain the response time between the generation of the water contact signal and the response of the signal monitoring end for each electrical signal trigger event in the electrical signal trigger record;

[0085] Determine the collaborative deviation between the corresponding response times of each adjacent electrical signal trigger event, where two electrical signal trigger events with adjacent occurrence times are used as adjacent electrical signal trigger events;

[0086] Determine the fluctuation characteristics of the signal monitoring end to the water contact signal in the response time through all the collaborative deviations.

[0087] It should be noted that the collaborative deviation represents the degree of change in the response time between the generation of the water contact signal and the response of the signal monitoring end in the water level measuring instrument. The larger the collaborative deviation, the greater the degree of change in the response time between the generation of the water contact signal and the response of the signal monitoring end in the water level measuring instrument, and the smaller the collaborative deviation, the smaller the degree of change in the response time between the generation of the water contact signal and the response of the signal monitoring end in the water level measuring instrument; As a preferred embodiment, the collaborative deviation between the corresponding response times of each adjacent electrical signal trigger event can be determined in the following way, that is: two electrical signal trigger events with adjacent occurrence times are used as adjacent electrical signal trigger events, calculate the absolute value of the difference between the two response times corresponding to the two electrical signal trigger events in the adjacent electrical signal trigger events, and then use this absolute value as the collaborative deviation between the corresponding response times of the adjacent electrical signal trigger events. In other embodiments, other methods can also be used to determine it, which is not limited here; The fluctuation characteristics of the signal monitoring end to the water contact signal in the response time can be determined through all the collaborative deviations in the following way, that is: calculate the variance of all the collaborative deviations, and then use the obtained variance as the parameter value of the fluctuation characteristics of the signal monitoring end to the water contact signal in the response time. In other embodiments, other methods can also be used for determination, which is not limited here.

[0088] It should be noted that the fluctuation characteristics in the response time in this application reflect the degree of fluctuation of the response time when the signal monitoring end in the water level measuring instrument monitors the water contact signal. The larger the value corresponding to the fluctuation characteristics, the greater the degree of fluctuation of the response time when the signal monitoring end in the water level measuring instrument monitors the water contact signal; the smaller the value corresponding to the fluctuation characteristics, the smaller the degree of fluctuation of the response time when the signal monitoring end in the water level measuring instrument monitors the water contact signal.

[0089] In step 105, the confidence deviation of the underground water level measurement is determined according to all the offset states and the fluctuation characteristics, and the water level measuring instrument is calibrated for confidence through the confidence deviation.

[0090] In some embodiments, as shown in Figure 3 the figure, which is an exemplary flowchart for determining the confidence deviation in some embodiments of this application. In this embodiment, the confidence deviation of the underground water level measurement can be determined according to all the offset states and the fluctuation characteristics by the following steps:

[0091] Merge all the offset states to obtain the offset trend value of the water level measuring instrument during the underground water level measurement process;

[0092] Determine the confidence deviation of the underground water level measurement based on the offset trend value and the fluctuation characteristics.

[0093] Specifically, the offset trend value reflects the overall offset degree of the measurement probe of the water level measuring instrument during the underground water level measurement process. The larger the offset trend value, the greater the overall offset degree of the measurement probe of the water level measuring instrument during the underground water level measurement process; the smaller the offset trend value, the smaller the overall offset degree of the measurement probe of the water level measuring instrument during the underground water level measurement process. Merging all the offset states to obtain the offset trend value of the water level measuring instrument during the underground water level measurement process can be achieved in the following way, that is: the mean result of all the offset states can be used as the offset trend value of the water level measuring instrument during the underground water level measurement process. In other embodiments, other methods can also be used for determination, which is not limited here.

[0094] It should be noted that the confidence deviation in this application represents the deviation degree when the water level measuring instrument measures the underground water level. The confidence deviation can be used to calibrate the measurement error of the water level measuring instrument during the underground water level measurement process. As a preferred embodiment, determining the confidence deviation of the underground water level measurement based on the offset trend value and the fluctuation characteristics can be achieved in the following manner: First, initialize a measurement deviation model. Then, use the offset trend value and the fluctuation characteristics as the input parameters of this measurement deviation model, and use the measurement error of the underground water level output by this measurement deviation model as the confidence deviation of the underground water level measurement. In other embodiments, other methods can also be used for determination, which is not limited here. It should be noted that the measurement deviation model is a model used to determine the measurement error of the underground water level. The measurement deviation model is usually pre-trained based on machine learning or deep learning algorithms through a large amount of historical measurement data (including the offset trend value, the fluctuation characteristics in time, and the corresponding true measurement error (as the training label)), and it can reflect the influence of the offset trend value and the fluctuation characteristics on the underground water level measurement result, which will not be elaborated here.

[0095] When specifically implemented, calibrating the confidence of the water level measuring instrument through the confidence deviation can be achieved in the following manner: First, obtain the initial water level measurement value of the water level measuring instrument. Second, add the confidence deviation to the value 1. Then, multiply the sum obtained by the addition by the initial water level measurement value, and use the result as the confidence result of the calibrated underground water level measurement of the water level measuring instrument, thus completing the confidence calibration of the water level measuring instrument. In other embodiments, other methods can also be used for implementation, which is not limited here.

[0096] In addition, on the other hand of this application, in some embodiments, this application provides a geological exploration underground water level measurement system, which further includes a water level measuring instrument and a calibration unit. Refer to Figure 4 , this figure is a schematic structural diagram of the calibration unit shown according to some embodiments of this application. The calibration unit 400 includes: a measurement module 401, a processing module 402, and an execution module 403, which are described as follows:

[0097] The measurement module 401. In this application, the measurement module 401 is mainly used to instruct the water level measuring instrument to measure the underground water level of the target geological exploration area.

[0098] The processing module 402. In this application, the processing module 402 is mainly used to segment the lowering distance of the measurement probe of the water level measuring instrument during the underground water level measurement process based on a preset step distance, obtain multiple descending segments during the underground water level measurement process, and then collect the horizontal displacement of the measurement probe within each descending segment.

[0099] The processing module 402 described in this application is further configured to determine the offset state of the measurement probe in the horizontal direction within each descending section based on the horizontal displacement within each acquired descending section and the void structure characteristics of the target geological exploration area;

[0100] The processing module 402 described in this application is further configured to obtain the electrical signal trigger records of the water level measuring instrument during historical measurements, perform fluctuation analysis on the response time of the signal monitoring end of the water level measuring instrument to the water contact signal in the electrical signal trigger records, and obtain the fluctuation characteristics of the signal monitoring end to the water contact signal in terms of response time;

[0101] An execution module 403. In this application, the execution module 403 is mainly configured to determine the confidence deviation of the underground water level measurement based on all the offset states and the fluctuation characteristics, and perform confidence calibration on the water level measuring instrument through the confidence deviation.

[0102] The above has introduced in detail the examples of the geological exploration underground water level measurement system and method provided in the embodiments of this application. It can be understood that, in order to implement the above functions, the corresponding device includes the corresponding hardware structure and / or software module for executing each function. Those skilled in the art should easily realize that, combining the units and algorithm steps of each example described in the embodiments disclosed in this article, this application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a certain function is executed in the way of hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Professional technicians can use different methods to implement the described functions for each specific application, but such implementation should not be considered to exceed the scope of this application.

[0103] In some embodiments, this application further provides a computer device, which includes a memory and a processor. The memory is used to store a computer program, and the processor is used to call and run the computer program from the memory, so that the computer device executes the above calibration method for geological exploration underground water level measurement.

[0104] In some embodiments, referring to Figure 5 , the dashed line in this figure indicates that the unit or the module is optional. This figure is a schematic structural diagram of a computer device for implementing the calibration method for geological exploration underground water level measurement in this application. The above-described calibration method for geological exploration underground water level measurement in the embodiments can be implemented by Figure 5 the computer device shown. The computer device 500 includes at least one processor 501, a memory 502, and at least one communication unit 505. The computer device 500 can be a terminal device, a server, or a chip.

[0105] The processor 501 can be a general-purpose processor or a special-purpose processor. For example, the processor 501 can be a central processing unit (CPU), and the CPU can be used to control the computer device 500, execute software programs, and process the data of the software programs. The computer device 500 can also include a communication unit 505 for implementing signal input (reception) and output (transmission).

[0106] For example, the computer device 500 can be a chip, and the communication unit 505 can be the input and / or output circuit of the chip, or the communication unit 505 can be the communication interface of the chip, and the chip can be a component of a terminal device, a network device, or other devices.

[0107] For another example, the computer device 500 can be a terminal device or a server, and the communication unit 505 can be the transceiver of the terminal device or the server, or the communication unit 505 can be the transceiver circuit of the terminal device or the server.

[0108] The computer device 500 can include one or more memories 502, on which there is a program 504. The program 504 can be run by the processor 501 to generate instructions 503, so that the processor 501 executes the methods described in the above method embodiments according to the instructions 503. Optionally, data (such as a target audit model) can also be stored in the memory 502. Optionally, the processor 501 can also read the data stored in the memory 502. The data can be stored at the same storage address as the program 504, or the data can be stored at a different storage address from the program 504.

[0109] The processor 501 and the memory 502 can be set separately or integrated together. For example, they can be integrated on a system on chip (SOC) of a terminal device.

[0110] It should be understood that the steps of the above method embodiments can be completed by the logic circuit in hardware form or the instructions in software form in the processor 501. The processor 501 can be a CPU, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA), or other programmable logic devices. For example, discrete gate, transistor logic devices, or discrete hardware components.

[0111] Those skilled in the art should understand that the embodiments of the present application can be provided as methods, systems, or computer program products. Therefore, the present application can take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware aspects. Moreover, the present application can take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) that contain computer-usable program code.

[0112] For example, in some embodiments, the present application further provides a computer-readable storage medium storing instructions or code, which when run on a computer, cause the computer to execute the calibration method for groundwater level measurement in geological exploration as described above.

[0113] In summary, in the geological exploration groundwater level measurement system and method disclosed in the embodiments of the present application, a groundwater level measuring instrument is used to measure the groundwater level in the target geological exploration area; based on a preset step distance, the lowering distance of the measuring probe of the groundwater level measuring instrument during the groundwater level measurement process is segmented to obtain multiple descending segments during the groundwater level measurement process, and then the horizontal displacement of the measuring probe within each descending segment is collected; the offset state of the measuring probe in the horizontal direction within each descending segment is determined by the horizontal displacement within each collected descending segment and the void structure characteristics of the target geological exploration area; the electrical signal trigger record during the historical measurement of the groundwater level measuring instrument is obtained, and the fluctuation analysis of the response time of the signal monitoring end of the groundwater level measuring instrument to the water-touching signal in the electrical signal trigger record is performed to obtain the fluctuation characteristics of the response time of the signal monitoring end to the water-touching signal; the confidence deviation of the groundwater level measurement is determined according to all the offset states and the fluctuation characteristics, and the groundwater level measuring instrument is calibrated for confidence through the confidence deviation; multi-source error calibration during the groundwater level measurement process can be achieved to improve the confidence range of the groundwater level measurement result.

[0114] Although the preferred embodiments of the present application have been described, those skilled in the art can make additional changes and modifications to these embodiments once they know the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present application.

[0115] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalent technologies, the present application is also intended to include these changes and modifications.

Claims

1. A calibration method for measuring the groundwater level in geological exploration, which is used to calibrate a water level measuring instrument, characterized in that, It includes the following steps: Use a water level measuring instrument to measure the underground water level in the target geological exploration area; Based on a preset step distance, segment the lowering distance of the measuring probe of the water level measuring instrument during the underground water level measurement to obtain multiple descending segments during the underground water level measurement, and then collect the horizontal displacement of the measuring probe within each descending segment; Determine the offset state of the measuring probe in the horizontal direction within each descending segment based on the horizontal displacement within each collected descending segment and the void structure characteristics of the target geological exploration area; Obtain the electrical signal trigger record during the historical measurement of the water level measuring instrument, perform a fluctuation analysis on the response time of the signal monitoring end of the water level measuring instrument to the water contact signal in the electrical signal trigger record, and obtain the fluctuation characteristics of the signal monitoring end to the water contact signal in terms of response time; Determine the confidence deviation of the underground water level measurement based on all the offset states and the fluctuation characteristics, and perform confidence calibration on the water level measuring instrument through the confidence deviation.

2. The method according to claim 1, characterized in that Based on a preset step distance, segment the lowering distance of the measuring probe of the water level measuring instrument during the underground water level measurement to obtain multiple descending segments during the underground water level measurement, which specifically includes: Determine the preset step distance during the underground water level measurement; Use the preset step distance as the segmentation interval; Equally divide the lowering distance of the measuring probe of the water level measuring instrument during the underground water level measurement according to this segmentation interval to obtain multiple descending segments during the underground water level measurement.

3. The method according to claim 1, characterized in that Determine the offset state of the measuring probe in the horizontal direction within each descending segment based on the horizontal displacement within each collected descending segment and the void structure characteristics of the target geological exploration area, which specifically includes: Determine the environmental impact degree during the underground water level measurement based on the void structure characteristics of the target geological exploration area; Determine the movement stability of the measuring probe during the descent based on the horizontal displacement within each collected descending segment; Select one descending segment as the selected descending segment; Determine the offset state of the measuring probe in the horizontal direction within the selected descending segment based on the horizontal displacement, the movement stability, and the environmental impact degree within the selected descending segment; Continue to determine the offset state of the measuring probe in the horizontal direction within the remaining descending segments.

4. The method according to claim 3, wherein Determine the environmental impact degree during the underground water level measurement based on the void structure characteristics of the target geological exploration area, which specifically includes: Obtain the void structure characteristics of the target geological exploration area; Pre-train an environmental impact model; Input the void structure characteristics into the environmental impact model, and use the output of the environmental impact model as the environmental impact degree during the underground water level measurement.

5. The method according to claim 1, characterized in that, Perform a fluctuation analysis on the response time of the signal monitoring end of the water level measuring instrument to the water contact signal in the electrical signal trigger record to obtain the fluctuation characteristics of the signal monitoring end to the water contact signal in terms of response time, which specifically includes: Obtain the response time between the generation of the water contact signal and the response of the signal monitoring end for each electrical signal trigger event in the electrical signal trigger record; Determine the collaborative deviation between the corresponding response times of each adjacent electrical signal trigger event, where two adjacent electrical signal trigger events with adjacent occurrence times are used as adjacent electrical signal trigger events; Determine the fluctuation characteristics of the response time of the signal monitoring end of the water contact signal through all the collaborative deviations.

6. The method according to claim 1, wherein Determining the confidence deviation of the groundwater level measurement according to all the offset states and the fluctuation characteristics specifically includes: Merge all the offset states to obtain the offset trend value of the water level measuring instrument during the groundwater level measurement process; Determine the confidence deviation of the groundwater level measurement based on the offset trend value and the fluctuation characteristics.

7. The method according to claim 1, wherein The water level measuring instrument is an electric contact type water level measuring device.

8. A groundwater level measurement system for geological exploration, comprising a water level measuring instrument and a calibration unit, characterized in that, The calibration unit includes: A measurement module for instructing the water level measuring instrument to measure the groundwater level in the target geological exploration area; A processing module for segmenting the lowering distance of the measurement probe of the water level measuring instrument during the groundwater level measurement process based on a preset step distance to obtain multiple descending segments during the groundwater level measurement process, and then collecting the horizontal displacement of the measurement probe in each descending segment; The processing module is further configured to determine the offset state of the measurement probe in the horizontal direction in each descending segment by using the horizontal displacement in each collected descending segment and the void structure characteristics of the target geological exploration area; The processing module is further configured to obtain the electrical signal trigger record of the water level measuring instrument during the historical measurement process, perform fluctuation analysis on the response time of the signal monitoring end of the water level measuring instrument to the water contact signal in the electrical signal trigger record, and obtain the fluctuation characteristics of the response time of the signal monitoring end to the water contact signal; An execution module for determining the confidence deviation of the groundwater level measurement according to all the offset states and the fluctuation characteristics, and performing confidence calibration on the water level measuring instrument through the confidence deviation.

9. A computer device, characterized in that, The computer device includes a memory and a processor. The memory is used to store a computer program, and the processor is used to call and run the computer program from the memory, so that the computer device executes the calibration method for the groundwater level measurement in geological exploration according to any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that, Instructions or codes are stored in the computer-readable storage medium. When the instructions or codes are run on a computer, the computer is caused to execute the calibration method for the groundwater level measurement in geological exploration according to any one of claims 1 to 7.

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