Geological exploration underground water level measuring system and method

Abstract

The invention provides a geological exploration underground water level measuring system and method. The underground water level of a target geological exploration area is measured through a water level measuring instrument; segmenting the descending distance of the measuring probe in the underground water level measuring process based on a preset step pitch to obtain a plurality of descending sections in the underground water level measuring process; determining the deviation state of the measuring probe in each descending section in the horizontal direction through the collected horizontal displacement in each descending section; performing fluctuation analysis on response time of the signal monitoring end of the water level measuring instrument to the water touch signal in the electric signal triggering record to obtain fluctuation characteristics of the signal monitoring end to the water touch signal in response time; and determining the confidence deviation of underground water level measurement according to all the offset states and fluctuation characteristics, and carrying out confidence calibration on the water level measuring instrument through the confidence deviation. By means of the scheme, multi-source error calibration in the underground water level measurement process can be achieved, and the confidence range of underground water level measurement results is widened.

Description

Technical Field

[0001] This application relates to the technical field of groundwater level measurement. More specifically, this application relates to a geological exploration groundwater level measurement system and method. Background Art

[0002] The groundwater level refers to the height of the groundwater surface relative to the ground surface, usually measured as the water surface position of groundwater in the groundwater layer. The change of the groundwater level reflects the storage, flow and supply status of groundwater, and is an important parameter in the fields of groundwater resource management, hydrogeological research and water pollution control.

[0003] The measurement of the groundwater level in geological exploration is an important means to understand the distribution and dynamic changes of groundwater resources, and is of great significance for regional water supply planning, environmental protection and geological disaster prevention. The measurement data directly affects water resource assessment, geological disaster early warning and underground space development. However, in the prior art, when measuring the groundwater level with a water level measuring instrument, the existing methods usually assume that the measuring probe of the water level measuring instrument moves along a vertical path, and do not fully consider the non-vertical movement of the measuring probe due to the influence of gravity eccentricity and collision during the falling process during the water level measurement process, resulting in deviation of the measurement result. Therefore, how to achieve multi-source error calibration during the groundwater level measurement process to improve the confidence range of the groundwater level measurement result has become a difficult problem faced by the industry. Summary of the Invention

[0004] This application provides a geological exploration groundwater level measurement system and method, which can achieve multi-source error calibration during the groundwater level measurement process to improve the confidence range of the groundwater level measurement result.

[0005] In a first aspect, this application provides a calibration method for geological exploration groundwater level measurement, including the following steps: Use a water level measuring instrument to measure the groundwater 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 groundwater level measurement process to obtain multiple descending segments during the groundwater level measurement process, and then collect the horizontal displacement of the measuring probe in each descending segment; Determine the offset state of the measuring probe in the horizontal direction in each descending segment through the horizontal displacement in each descending segment collected and the void structure characteristics of the target geological exploration area; 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 touch signal in the electrical signal trigger record, and obtain the fluctuation characteristics of the signal monitoring end to the water touch signal in the response time; 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.

[0006] In some embodiments, segmenting the lowering distance of the measurement probe of the water level measuring instrument during the groundwater level measurement based on a preset step size to obtain multiple descending segments during the groundwater level measurement specifically includes: Determine the preset step size of the groundwater level measurement process; Use the preset step size as the segmentation interval; Equally divide the lowering distance of the measurement probe of the water level measuring instrument during the groundwater level measurement according to the segmentation interval to obtain multiple descending segments during the groundwater level measurement.

[0007] 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: Determine the environmental influence degree during the groundwater level measurement based on the void structure characteristics of the target geological exploration area; Determine the movement stability of the measurement probe during the descending process through the horizontal displacement within each descending segment collected; Select one descending segment as the selected descending segment; 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; Continue to determine the offset state of the measurement probe in the horizontal direction within the remaining descending segments.

[0008] In some embodiments, determining the environmental influence degree during the groundwater level measurement based on the void structure characteristics of the target geological exploration area specifically includes: Obtain the void structure characteristics of the target geological exploration area; Pre-train an environmental influence model; Input the void structure characteristics into the environmental influence model, and use the output of the environmental influence model as the environmental influence degree during the groundwater level measurement.

[0009] In some embodiments, 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 to obtain the fluctuation characteristics of the signal monitoring end to the water contact signal in the response time 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 triggering events of adjacent electrical signals during their corresponding response times, where two electrical signal triggering events with adjacent occurrence times are used as adjacent electrical signal triggering events; Determine the fluctuation characteristics of the response time of the water-touching signal at the signal monitoring end of the water level measuring instrument based on all the collaborative deviations.

[0010] In some embodiments, determining the confidence deviation of the groundwater level measurement based on 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.

[0011] In some embodiments, the water level measuring instrument is an electrically contact-type water level measuring device.

[0012] In a second aspect, the present application provides a geological exploration groundwater level measurement system, including a water level measuring instrument and a calibration unit, where the calibration unit includes: A measurement module for measuring the groundwater level of a target geological exploration area using the water level measuring instrument; 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 within each descending segment; The processing module is further configured to determine the offset state of the measurement probe in the horizontal direction within each descending segment based on the horizontal displacement within each descending segment collected and the void structure characteristics of the target geological exploration area; The processing module is further configured to obtain the electrical signal triggering record of the water level measuring instrument during the historical measurement process, perform a fluctuation analysis on the response time of the signal monitoring end of the water level measuring instrument to the water-touching signal in the electrical signal triggering record, and obtain the fluctuation characteristics of the signal monitoring end to the water-touching signal in the response time; An execution module for determining the confidence deviation of the groundwater level measurement based on all the offset states and the fluctuation characteristics, and performing confidence calibration on the water level measuring instrument through the confidence deviation.

[0013] 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-mentioned calibration method for geological exploration groundwater level measurement.

[0014] Fourthly, the present application provides a computer-readable storage medium, in which instructions or codes are stored. When the instructions or codes are run on a computer, the computer is enabled to execute the above calibration method for measuring the groundwater level in geological exploration.

[0015] The technical solutions provided by the disclosed embodiments of the present application have the following beneficial effects: In the present application, the groundwater level of the target geological exploration area is measured by using a water level measuring instrument; the lowering distance of the measuring probe of the water level measuring instrument during the groundwater level measurement is segmented based on a preset step distance to obtain a plurality of descending segments during the groundwater level measurement, and then the horizontal displacement of the measuring probe in each descending segment is collected; the offset state of the measuring probe in the horizontal direction in each descending segment is determined by the horizontal displacement in 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 water level measuring instrument is obtained, and the 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 the fluctuation characteristics, and the water level measuring instrument is calibrated for confidence through the confidence deviation.

[0016] It can be seen that in the present application, firstly, by determining the offset state of the measurement probe in the horizontal direction within each descending section based on the horizontal displacement within each descending section obtained by acquisition and the void structure characteristics of the target geological exploration area, the influence of different geological environment conditions on the water level measurement data can be effectively evaluated, the recognition of the complexity of the geological environment and the errors caused by the offset of the measurement probe during the descending process can be strengthened, so as to eliminate the errors introduced by non-vertical movement during the falling process of the measurement probe in the subsequent stage; secondly, 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 electrical 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 precise positioning of the water contact position; then, by determining the confidence deviation of the groundwater level measurement based on all the offset states and the fluctuation characteristics, the correction results of multiple error sources can be integrated, the measured data of the groundwater level error can be effectively corrected, and the accuracy of the groundwater level measurement can be improved; finally, by performing confidence calibration on the water level measuring instrument through the confidence deviation, the deviation amplitude of the groundwater level measurement result of the water level measuring instrument is reduced, 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

[0017] 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.

[0018] Figure 1 is an exemplary flowchart of a calibration method for groundwater level measurement in geological exploration according to some embodiments of the present application; Figure 2 is an exemplary flowchart of determining the environmental impact degree according to some embodiments of the present application; Figure 3 is an exemplary flowchart of determining the confidence deviation according to some embodiments of the present application; Figure 4 is a schematic structural diagram of a calibration unit according to some embodiments of the present application; Figure 5 is a schematic structural diagram of a computer device for implementing the calibration method for groundwater level measurement in geological exploration according to some embodiments of the present application. Specific Embodiments

[0019] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present application.

[0020] Refer to Figure 1 , which is an exemplary flowchart of a calibration method for measuring the groundwater level in geological exploration according to some embodiments of the present application. The calibration method 100 for measuring the groundwater level in geological exploration mainly includes the following steps: In step 101, a water level measuring instrument is used to measure the groundwater level in the target geological exploration area.

[0021] 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 groundwater level and is composed of a measuring probe, a signal transmission device, and a data receiving module.

[0022] Specifically, when using a water level measuring instrument to measure the groundwater level in the target geological exploration area, that is: start the water level measuring instrument to detect the depth of the groundwater level, insert the measuring probe of the water level measuring instrument in 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 record the current depth of the measuring probe in real time.

[0023] In step 102, based on a preset step distance, the lowering distance of the measuring probe of the water 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 in each descending segment is collected.

[0024] In some embodiments, 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 can be implemented by the following steps: Determine the preset step distance for the groundwater level measurement process; Use the preset step distance as the segmentation interval; Divide the lowering distance of the measuring probe of the water level measuring instrument during the groundwater level measurement process at equal intervals according to this segmentation interval to obtain multiple descending segments during the groundwater level measurement process.

[0025] In specific implementation, the preset step distance refers to a fixed interval distance used to segment the lowering distance of the measurement probe during the underground water level measurement; determining the preset step distance of the underground water level measurement process can be achieved in the following manner, 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 process is equally segmented into multiple descending segments during the underground water level measurement process according to this segmentation interval.

[0026] It should be noted that the descending segment in this application represents the falling interval of the measurement probe during the measurement process, and each descending segment corresponds to a lowering distance of the measurement probe.

[0027] In addition, in specific implementation, collecting the horizontal displacement of the measurement probe in each descending segment can be achieved in the following manner, that is: selecting a descending segment as the selected descending segment, collecting the displacement in the horizontal direction between the starting point and the ending point of the selected descending segment through a displacement sensor, and taking the collected displacement as the horizontal displacement of the measurement probe in the selected descending segment, and continuing 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.

[0028] 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 within the descending segment.

[0029] In step 103, the offset state of the measurement probe in the horizontal direction within each descending segment is determined based on the horizontal displacement within each descending segment collected and the void structure characteristics of the target geological exploration area.

[0030] In some embodiments, determining the offset state of the measurement probe in the horizontal direction within each descending segment based on the horizontal displacement within each descending segment collected and the void structure characteristics of the target geological exploration area can be achieved through the following steps: Determine the environmental influence degree of the underground water level measurement process based on the void structure characteristics of the target geological exploration area; Determine the movement stability of the measurement probe during the descending process based on the horizontal displacement within each descending segment collected; Select a descending segment as the selected descending segment; Determine the offset state of the measurement probe in the horizontal direction within the selected descending segment based on the horizontal displacement within the selected descending segment, the movement stability, and the environmental influence degree; Continue to determine the offset state of the measurement probe in the horizontal direction within the remaining descending section.

[0031] Among them, in some embodiments, refer to Figure 2 As shown, this figure is an exemplary flowchart for determining the environmental impact degree in some embodiments of the present application. In this embodiment, determining the environmental impact degree of the groundwater level measurement process based on the void structure characteristics of the target geological exploration area can be implemented by the following steps: First, in step 1021, obtain the void structure characteristics of the target geological exploration area; Secondly, in step 1022, pre-train the environmental impact model; Finally, in step 1023, input the void structure characteristics 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.

[0032] 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 referring to materials such as geological exploration reports and borehole logs. 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. The Support Vector Regression (SVR) model architecture is selected and the parameters are initialized. Then, data preprocessing is carried out, including normalizing numerical features and one-hot encoding categorical features, dividing the training set and the test set. Then, the training set is input into the environmental impact model, and the model parameters are optimized through gradient descent or ensemble learning. The hyperparameters of SVR (such as regularization parameters, kernel function coefficients, and tolerance, etc.) are adjusted by 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, the test set is used 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 (i.e., environmental impact degree) of the underground void environment on the vertical movement of the measurement probe 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, the void structure characteristics are input into the environmental impact model, and the output result of the environmental impact model is used as the environmental impact degree during the underground water level measurement process.

[0033] 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 process. 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 process. 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 process.

[0034] In addition, it should be noted that the motion stability reflects the stability of the measurement probe during the descending process in the vertical direction. The larger the value corresponding to the motion stability, the higher the stability of the measurement probe during the descending process in the vertical direction; the smaller the value corresponding to the motion stability, the lower the stability of the measurement probe during the descending process in the vertical direction. As a preferred embodiment, the motion stability of the measurement probe during the descending process can be determined by the horizontal displacement within each descending section obtained through acquisition in the following manner, that is: the reciprocal of the variance of the horizontal displacements within all the descending sections obtained through acquisition can be used as the value reflecting the motion stability of the measurement probe during the descending process. In other embodiments, other methods can also be used for determination, which is not limited here.

[0035] During specific implementation, the deviation state of the measurement probe in the horizontal direction within the selected descending section can be determined according to the horizontal displacement within the selected descending section, the motion stability, and the environmental influence degree in the following manner, that is: first, a weighted sum of the value corresponding to the motion stability and the environmental influence degree is calculated. 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 from the above weighted sum is added with the value 1 and then multiplied by the horizontal displacement within the selected descending section. Finally, the obtained product value is used as the deviation state of the measurement probe in the horizontal direction within the selected descending section. In other embodiments, other methods can also be used for determination, which is not limited here.

[0036] 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 descending process of the measurement probe.

[0037] In step 104, the electrical signal trigger records during the historical measurement process of the water level measuring instrument are obtained, and the fluctuation analysis is performed on 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, so as to obtain the fluctuation characteristics of the response time of the signal monitoring end to the water-touching signal.

[0038] During specific implementation, 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 (that is, 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 formed into the electrical signal trigger records during the historical measurement process of the water level measuring instrument. In other embodiments, other methods can also be used for acquisition, which is not specifically limited here.

[0039] It should be noted that the electrical signal trigger record in this application represents a set of electrical signal trigger events generated by the water level measuring instrument during historical measurements.

[0040] 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 performed to obtain the fluctuation characteristics of the response time of the signal monitoring end to the water contact signal, which can be achieved by the following steps: 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 to the water contact signal through all the collaborative deviations.

[0041] 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. 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 manner: two adjacent electrical signal trigger events with adjacent occurrence times are used as adjacent electrical signal trigger events, and 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 is calculated. Then, this absolute value is used 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 response time of the signal monitoring end to the water contact signal can be determined through all the collaborative deviations in the following manner: calculate the variance of all the collaborative deviations, and then use the obtained variance as the parameter value of the fluctuation characteristics of the response time of the signal monitoring end to the water contact signal. In other embodiments, other methods can also be used to determine it, which is not limited here.

[0042] 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.

[0043] In step 105, a confidence deviation of the groundwater 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.

[0044] In some embodiments, with reference to Figure 3 As shown, this figure is an exemplary flowchart for determining the confidence deviation in some embodiments of the present application. In this embodiment, the confidence deviation of the groundwater level measurement determined according to all the offset states and the fluctuation characteristics can be implemented by the following steps: Merge all the offset states to obtain an 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.

[0045] Specifically, the offset trend value reflects the overall offset degree of the measurement probe of the water level measuring instrument during the groundwater 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 groundwater level measurement process, and the smaller the offset trend value, the smaller the overall offset degree of the measurement probe of the water level measuring instrument during the groundwater level measurement process. Merging all the offset states to obtain the offset trend value of the water level measuring instrument during the groundwater level measurement process can be implemented in the following manner, 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 groundwater level measurement process. In other embodiments, other methods can also be used for determination, which is not limited here.

[0046] It should be noted that the confidence deviation in the present application represents the deviation degree when the water level measuring instrument measures the groundwater level. The confidence deviation can be used to calibrate the measurement error of the water level measuring instrument during the groundwater level measurement process; as a preferred embodiment, determining the confidence deviation of the groundwater level measurement based on the offset trend value and the fluctuation characteristics can be implemented in the following manner, that is: first, initialize a measurement deviation model. Then, use the offset trend value and the fluctuation characteristics as the input parameters of the measurement deviation model, and use the measurement error of the groundwater level output by the measurement deviation model as the confidence deviation of the groundwater level measurement. In other embodiments, other methods can also be used for determination, which is not limited here; among them, it should be noted that the measurement deviation model is a model for determining the measurement error of the groundwater 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 offset trend values, fluctuation characteristics in time, and corresponding true measurement errors (as training labels)), and it can reflect the influence of the offset trend value and the fluctuation characteristics on the groundwater level measurement result, which will not be elaborated here.

[0047] In specific implementation, the confidence calibration of the water level measuring instrument by using 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 numerical 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 underground water level measurement after calibrating 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 are not limited herein.

[0048] In addition, on the other hand of the present application, in some embodiments, the present 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 , which is a schematic structural diagram of the calibration unit shown according to some embodiments of the present application. The calibration unit 400 includes: a measurement module 401, a processing module 402, and an execution module 403, which are described as follows: Measurement module 401: In the present 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. Processing module 402: In the present 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 based on a preset step distance, obtain multiple descending segments during the underground water level measurement, and then collect the horizontal displacement of the measurement probe within each descending segment. In the present application, the processing module 402 is further used to determine the offset state of the measurement probe in the horizontal direction within each descending segment based on the horizontal displacement within each descending segment collected and the void structure characteristics of the target geological exploration area. In the present application, the processing module 402 is further used to obtain the electrical signal trigger record during the historical measurement of the water level measuring instrument, 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. Execution module 403: In the present application, the execution module 403 is mainly used 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 by using the confidence deviation.

[0049] The above has introduced in detail the examples of the geological exploration groundwater level measurement system and method provided by the embodiments of the present 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, the present 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 function for each specific application, but such implementation should not be considered to exceed the scope of the present application.

[0050] In some embodiments, the present 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-mentioned calibration method for geological exploration groundwater level measurement.

[0051] 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 groundwater level measurement of the present application. The calibration method for geological exploration groundwater level measurement in the above 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.

[0052] 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). The CPU can be used to control the computer device 500, execute software programs, and process the data of software programs. The computer device 500 can also include a communication unit 505 for realizing the input (reception) and output (transmission) of signals.

[0053] 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. The chip can be a component of a terminal device, a network device, or other devices.

[0054] For another example, the computer device 500 can be a terminal device or a server, the communication unit 505 can be a transceiver of the terminal device or the server, or the communication unit 505 can be a transceiver circuit of the terminal device or the server.

[0055] The computer device 500 may include one or more memories 502, on which a program 504 is stored. The program 504 can be run by the processor 501 to generate instructions 503, enabling the processor 501 to execute the methods described in the above method embodiments according to the instructions 503. Optionally, data (such as a target audit model) may also be stored in the memory 502. Optionally, the processor 501 can also read the data stored in the memory 502. This data can be stored at the same storage address as the program 504, or it can be stored at a different storage address from the program 504.

[0056] 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 the terminal device.

[0057] It should be understood that the steps of the above method embodiments can be completed by a logic circuit in hardware form or 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.

[0058] Those skilled in the art should understand that the embodiments of the present application can be provided as a method, a system, or a computer program product. Therefore, the present application can adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware aspects. Moreover, the present application can adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk memories, CD-ROMs, optical memories, etc.) containing computer-usable program code.

[0059] For example, in some embodiments, the present application also provides a computer-readable storage medium, in which instructions or code are stored. When the instructions or code run on a computer, the computer is enabled to execute the above calibration method for measuring the groundwater level in geological exploration.

[0060] In summary, in the geological exploration groundwater level measurement system and method disclosed in the embodiments of the present application, a water level measuring instrument is used to measure the groundwater level in a target geological exploration area; based on a preset step distance, the lowering distance of the measurement probe of the water 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 measurement probe within each descending segment is collected; the offset state of the measurement 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 water level measuring instrument is obtained, and the 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 the fluctuation characteristics, and the water level measuring instrument is calibrated for confidence through the confidence deviation; multi-source error calibration during the groundwater level measurement process can be realized to improve the confidence range of the groundwater level measurement result.

[0061] Although the preferred embodiments of the present application have been described, those skilled in the art can make additional changes and modifications once they learn the basic creative concepts. Therefore, the appended claims are intended to be construed to include the preferred embodiments as well as all changes and modifications falling within the scope of the present application.

[0062] 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 also intends to include these modifications and variations.

Claims

1. A calibration method for groundwater level measurement in geological exploration, used for calibrating a water level measuring instrument, characterized in that: The steps include: Use water level measuring instruments to measure the groundwater level in the target geological exploration area; The lowering distance of the measuring probe of the water level measuring instrument during the groundwater level measurement is segmented based on a preset step distance to obtain multiple descending sections during the groundwater level measurement process, and then the horizontal displacement of the measuring probe in each descending section is collected; Determine the offset state of the measuring probe in the horizontal direction in each descending section by collecting the horizontal displacement in each descending section and the void structure characteristics of the target geological exploration area; Obtain the electrical signal triggering record of the water level measuring instrument in 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 triggering record, and obtain the fluctuation characteristics of the signal monitoring end in response time to the water contact signal; The confidence deviation of the groundwater level measurement is determined according to all the offset states and the fluctuation characteristics, and the water level measuring instrument is confidence calibrated by the confidence deviation.

2. The method according to claim 1, characterized in that The lowering distance of the measuring probe of the water level measuring instrument during the underground water level measurement process is segmented based on the preset step distance, and the multiple descending sections during the underground water level measurement process are obtained, specifically including: Determine the preset step size for the groundwater level measurement process; Using the preset step distance as the segmentation interval; The lowering distance of the measuring probe of the water level measuring instrument during the underground water level measurement process is divided into equal intervals according to the segment intervals to obtain a plurality of descending sections during the underground water level measurement process.

3. The method according to claim 1, characterized in that Determining the offset state of the measuring probe in the horizontal direction in each descending section by collecting the horizontal displacement in each descending section and the void structure characteristics of the target geological exploration area specifically includes: Determine the environmental impact of the groundwater level measurement process based on the void structure characteristics of the target geological exploration area; The motion stability of the measuring probe during the descent process is determined by collecting the horizontal displacement in each descent section; Select a descending segment as the selected descending segment; Determining the offset state of the measuring probe in the horizontal direction within the selected descending section according to the horizontal displacement within the selected descending section, the motion stability and the environmental influence degree; Continue to determine the offset state of the measuring probe in the horizontal direction within the remaining descending section.

4. The method according to claim 3, characterized in that The environmental impact of the groundwater level measurement process is determined based on the void structure characteristics of the target geological exploration area, including: Obtain the void structure characteristics of the target geological exploration area; Pre-training environmental impact models; The void structure characteristics are input into the environmental impact model, and the output of the environmental impact model is used as the environmental impact degree of the groundwater level measurement process.

5. The method according to claim 1, characterized in that 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 subjected to fluctuation analysis, and the fluctuation characteristics of the response time of the signal monitoring end to the water contact signal are obtained, which specifically include: Acquire the response time between the generation of the water-touch signal and the response of the signal monitoring terminal for each electric signal triggering event in the electric signal triggering record; Determining the coordination deviation between corresponding response times of each adjacent electrical signal triggering event, wherein two electrical signal triggering events with adjacent occurrence times are regarded as adjacent electrical signal triggering events; The fluctuation characteristics of the signal monitoring end in response time to the water contact signal are determined through all coordinated deviations.

6. The method according to claim 1, characterized in that Determining the confidence deviation of groundwater level measurement based on all the deviation states and the fluctuation characteristics specifically includes: All the offset states are combined to obtain the offset trend value of the water level measuring instrument during the groundwater level measurement process; A confidence deviation of groundwater level measurement is determined based on the deviation trend value and the fluctuation characteristic.

7. The method according to claim 1, characterized in that 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 comprises: A measurement module, used to instruct a water level measuring instrument to measure the groundwater level in a target geological exploration area; A processing module, for 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, obtaining multiple descending sections during the groundwater level measurement process, and then collecting the horizontal displacement of the measuring probe in each descending section; The processing module is further used to determine the offset state of the measuring probe in the horizontal direction in each descending section through the acquired horizontal displacement in each descending section and the void structure characteristics of the target geological exploration area; The processing module is further used to obtain the electrical signal triggering record of the water level measuring instrument in 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 triggering record, and obtain the fluctuation characteristics of the signal monitoring end in response time to the water contact signal; The execution module is used to determine the confidence deviation of the groundwater level measurement according to all the offset states and the fluctuation characteristics, and to perform 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 groundwater level measurement in geological exploration as described in any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores instructions or codes, and when the instructions or codes are executed on a computer, the computer implements the calibration method for groundwater level measurement in geological exploration as claimed in any one of claims 1 to 7.

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