Mine connection survey method and system, computer equipment and storage medium

Abstract

The invention provides a mine connection survey method and system, computer equipment and a storage medium, and belongs to the field of mine survey, and the method comprises the following steps: firstly, in plane coordinate transmission, observing the swing of a steel wire by adopting a reversal point method, and screening initial direction observation values of underground connection edges based on a statistical principle; a stable and reliable starting direction is determined; secondly, in elevation transmission, a ground elevation datum is optimized through curved surface fitting, and direct measurement of the height of the instrument is replaced by calculation through the Pythagorean theorem by utilizing the slope height and radius of the instrument, so that accumulation of errors is eliminated; and finally, in the gyroscope orientation process, through experiments in winter and summer, systematically analyzing the rule that instrument parameters change along with the temperature, and formulating an operation specification for improving the observation stability according to the rule.

Description

Technical Field

[0001] This invention belongs to the field of mine surveying, and specifically relates to a mine connection surveying method, system, computer equipment, and storage medium. Background Technology

[0002] Vertical shaft connection surveying technology is widely used in underground mining engineering, urban rail transit engineering, and tunnel engineering. Vertical shaft connection surveying involves accurately transmitting the plane coordinates, azimuth, and elevation of the surface control network to the underground using specific methods and according to required precision. This ensures that the same plane coordinate and elevation system is used both above and below ground, providing control data for subway tunnel excavation and guaranteeing correct connection between opposing excavation faces. Vertical shaft connection surveying methods include two parts: plane connection surveying (vertical shaft orientation surveying) and elevation connection surveying. Among all errors in plane connection surveying, the main one is the error in the transmission of coordinate azimuth angles; therefore, it is also called mine orientation.

[0003] Currently, common methods for shaft orientation in my country include geometric orientation methods such as single-well orientation (connecting triangle method, connecting quadrilateral method), two-well orientation, borehole point projection method, and traverse orientation; and orientation methods using point projection + gyroscope, combined orientation using plumb bob and gyro theodolite, and gyro orientation using a surveying robot and gyro total station. Geometric orientation methods are time-consuming and labor-intensive, occupying too much time in the shaft, affecting construction or production. Gyro orientation methods occupy less time in the shaft, are simpler to operate, and are beneficial for improving orientation accuracy and efficiency; their widespread application has become a trend.

[0004] In recent years, with the significant improvement of surveying instruments and equipment, and the widespread application of precision adjustment software, various methods for connection surveying have emerged. Xu Feng et al. used the multi-point resection method to quickly obtain the coordinates and azimuth of underground control points, thus enabling coordinate transfer in complex field environments such as small-space deep shafts. This also greatly improved the accuracy of connection surveying, saving significant manpower, material resources, and financial resources, as well as valuable time for frontline units. Cui Xusheng used a double-connection triangle method for shaft connection surveying. The double-station method saves time on plumb line operation and has low requirements for shaft and plumb line equipment, but it has significant limitations in underground space and occupies a large shaft space, making it suitable for relatively spacious shafts. Wang Zhen et al. proposed a single-shaft directional connection surveying based on mobile APP and desktop software. Hu Rongming et al. studied a network-based information-based subway construction surveying management model. Liu Shaochun employed a total station, optical plumb bob, and gyrotheodolite for integrated measurement, replacing the traditional method of separate horizontal and vertical measurements. This solved the problems of traditional methods requiring steel tape and wire to be lowered into the shaft, resulting in long shaft occupation times and low work efficiency. Wang Bingyan rationally allocated errors across the four stages of subway construction, improving the tunnel breakthrough accuracy.

[0005] However, there is still a problem that needs to be solved: downhole and surface measurement data cannot be measured with high precision. Summary of the Invention

[0006] To address the problem of inconsistent underground and surface measurement data during mining operations, which affects precise underground construction, this invention provides a mine connection measurement method, system, computer equipment, and medium.

[0007] To achieve the above objectives, the present invention provides a mine connection measurement method, comprising: A steel wire with markings is inserted into the underground area of ​​the mine to be measured, and a target traverse point for the elevation to be measured is marked inside the mine.

[0008] Multiple sets of original sequences of the direction of the steel wire that periodically oscillates due to the airflow in the shaft are collected, and the final vertical direction of the steel wire is determined from the original sequences. The instrument parameters of the downhole gyro total station are measured multiple times under different ambient temperatures, and the law of change of instrument parameters with temperature is analyzed. The temperature range in which the instrument parameters can operate stably is determined from the law. Within the temperature range, the true north direction of the gyro orientation instrument is determined.

[0009] Using a ground total station, measure the first distance and the first vertical angle from the near-well point to the wire marker point. Combine this with the elevation of the near-well point to calculate the ground elevation of the wire marker point. Using a downhole total station, measure the second distance and the second vertical angle from the target traverse point to the wire marker point. Obtain the instrument height of the downhole total station. Based on the ground elevation of the wire marker point, the second distance, the second vertical angle, and the instrument height of the downhole total station, calculate the elevation of the target traverse point.

[0010] By utilizing the vertical direction of the steel wire, the true north direction of the gyroscope orientation, and the elevation of the target traverse point, a unified planar coordinate system is established for both above-ground and underground operations. The target mine is then measured based on this planar coordinate system.

[0011] Preferably, the step of collecting multiple sets of original sequences of the steel wire direction that periodically oscillates due to the influence of the vertical shaft airflow, and determining the final vertical direction of the steel wire from the original sequences, specifically includes: using the reversal point method to track and collect multiple sets of original sequences of the steel wire direction that periodically oscillates due to the influence of the vertical shaft airflow; calculating the mean and standard deviation of all original sequences; using the mean plus or minus one standard deviation as the confidence interval; filtering all original sequences of the steel wire direction that fall within the confidence interval; and calculating the mean of all the filtered original sequences of the steel wire direction as the final vertical direction of the steel wire.

[0012] Preferably, the marking point on the steel wire is located between the ground total station and the downhole total station in the vertical direction.

[0013] Preferably, the instrument height of the downhole total station is obtained by an indirect measurement method, specifically as follows: An independent reference point is established near the target traverse point, and a prism is placed on this reference point; the slope distance from the center of the downhole total station to the center of the prism is measured using the downhole total station. S ; Measure the horizontal distance from the center of the downhole total station to the center of the prism. R Based on the Pythagorean theorem, according to the formula Calculate the instrument height of the downhole total station. i .

[0014] Preferably, the elevation of the target traverse point is calculated based on the ground elevation, second distance, second vertical angle, and instrument height of the downhole total station at the steel wire marker point. The expression is: in, The ground elevation of the steel wire marker points. The first distance, The first vertical angle, The second distance, The second vertical angle, For the instrument height of the ground total station, The instrument height of the downhole total station is [instrument height]. l This refers to the depth inside the well.

[0015] Preferably, the method further includes determining the difference between the planar coordinate system and the local coordinate system of the target mining area using a polynomial surface fitting method, a GPS gravity method, a weighted average method, or a neural network method, since there is a difference between the planar coordinate system and the local coordinate system of the target mining area.

[0016] The present invention also provides a mine communication measurement system, comprising: The data preparation module is used to guide a steel wire with marked points into the underground area of ​​the mine to be measured, and mark a target traverse point for the elevation to be measured inside the mine; collect multiple sets of original sequences of the steel wire's direction of periodic oscillation due to the influence of airflow in the shaft, and determine the final vertical direction of the steel wire from the original sequences; measure the instrument parameters of the underground gyro total station multiple times under different ambient temperatures, analyze the law of instrument parameter change with temperature, and determine the temperature range in which the instrument parameters can operate stably; within the temperature range, determine the true north direction of the gyro orientation instrument.

[0017] The elevation calculation module for the target traverse point is used to measure the first distance and first vertical angle from the near-well point to the wire marker point using a ground total station, and calculate the ground elevation of the wire marker point based on the elevation of the near-well point; measure the second distance and second vertical angle from the target traverse point to the wire marker point using a downhole total station; obtain the instrument height of the downhole total station, and calculate the elevation of the target traverse point based on the ground elevation, second distance, second vertical angle of the wire marker point, and the instrument height of the downhole total station.

[0018] The target plane system generation module is used to establish a unified plane coordinate system for both above-ground and underground operations by utilizing the vertical direction of the steel wire, the true north direction located by the gyroscope, and the elevation of the target traverse point, and to measure the target mine based on the plane coordinate system.

[0019] The present invention also provides a computer device, including a memory, a processor, and a computer program stored in the memory, wherein the processor executes the computer program to implement any of the steps in the mine connection measurement method.

[0020] The present invention also provides a computer-readable storage medium storing a computer program that, when loaded by a processor, can execute any of the steps in the mine contact measurement method.

[0021] The mine connection measurement method provided by this invention has the following beneficial effects: By employing the reversal point method combined with probabilistic statistics to eliminate abnormal data on wire swing, the accuracy of initial direction and distance parameters within the well is improved. The measurement error is gradually reduced in stages using distance and vertical angle to ensure accurate elevation transfer. The gyro total station instrument parameters are calibrated at different temperatures, and a temperature correlation model is established to define stable operating ranges and ensure unified directional benchmarks above and below ground. The resulting high-precision model provides reliable technical support for the unification of coordinate systems above and below ground, adapting to the complex measurement environment of mines, thereby improving the accuracy of connection measurements and ensuring safe production in the mine. Attached Figure Description

[0022] To more clearly illustrate the embodiments and design schemes of the present invention, the accompanying drawings required for this embodiment will be briefly described below. The drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a flowchart of a mine communication measurement method according to an embodiment of the present invention; Figure 2 This is a quartile plot of the original observation data in an embodiment of the present invention; Figure 3 This is a normal QQ plot of the original observation data in an embodiment of the present invention; Figure 4 This is a quartile diagram of the original data after processing, according to an embodiment of the present invention. Figure 5 This is a normal QQ graph after processing the original data in this embodiment of the invention; Figure 6 This is a curve showing the change of instrument parameters with instrument temperature in Experiment 1 of this invention. Figure 7 This is a curve showing the change of instrument parameters with instrument temperature in Experiment 2 of this invention. Figure 8 This illustrates the relationship between the rate of change of instrument parameters and the rate of change of instrument temperature in an embodiment of the present invention. Figure 9 This illustrates the relationship between instrument parameters and temperature in Experiment 1 of this invention. Figure 10 This illustrates the relationship between instrument parameters and temperature in Experiment 2 of this invention. Figure 11 This illustrates the relationship between instrument parameters and temperature in Experiment 3 of this invention. Figure 12 This illustrates the statistical relationship between the rate of change of instrument parameters and the rate of change of temperature in an embodiment of the present invention. Detailed Implementation

[0024] To enable those skilled in the art to better understand and implement the technical solutions of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. The following embodiments are only used to more clearly illustrate the technical solutions of the present invention and should not be construed as limiting the scope of protection of the present invention.

[0025] This invention provides a method for mine connection measurement, specifically as follows: Figure 1 As shown, it includes: The marker point on the steel wire is flexibly fixed on the steel wire. In this embodiment of the invention, a marker point is made on the steel wire both on the ground and underground, allowing simultaneous observation both above and below ground. Alternatively, only one marker point can be prepared on the steel wire, positioned between the vertical directions of the two total stations. Due to the depth of the vertical shaft, coupled with the effects of dripping water from the shaft wall and airflow at the gate, the steel wire swings significantly. To reduce the swing amplitude, the heavy plumb bob hanging from the steel wire is placed in a bucket containing damping material. During measurement, the reversal point method is used to track the swing of the steel wire for observation and recording. The original observation data tracking the initial direction of the steel wire are shown in Table 1. Analysis of the original data based on probability and statistics theory revealed that some data deviated significantly. The quartile and normal QQ plot results are as follows: Figure 2 and Figure 3As shown. In surveying, the probability of a deviation of ±2 standard deviations is 95.5%, and it is commonly used as the limit error for data truncation. However, in engineering practice, considering the numerous and complex error factors, to ensure the accuracy and quality of observations, ±1 standard deviation is selected as the threshold for truncation of the observation dataset. That is, the upper and lower limits of the observation data are truncated with a confidence level of 68.3%. The processed results are as follows. Figure 4 and Figure 5 As shown, the quartiles and normal QQ plots are quite ideal. The comparison of the results before and after processing is shown in Table 2.

[0026] Table 1. Raw data from independent observations of the aiming wire during connection measurements. Table 2 Comparison of results before and after treatment In actual measurements, prisms are often placed at both ends of a steel wire to measure the distance, and then the average value is taken. Due to the swaying of the steel wire, multiple observations are often required to reduce the accumulation of errors. High-precision distance measurement can be performed by using the final direction value of the steel wire obtained from the previous angle observation and the placement of the prism.

[0027] Obtaining high-precision ground elevation points. Since the difference between the target elevation system and the local elevation system is not a constant, a surface fitting method is chosen to correct the target elevation in order to improve observation efficiency and measurement accuracy. Commonly used methods for finding geoid anomalies include: polynomial surface fitting, GPS gravity method, weighted average method, and neural network method. To obtain the high-precision elevation of the starting point within the survey area, the elevation system is transformed using MATLAB tools. Different functions are used to fit the elevation difference, obtaining the fitted surface, which is then used to reverse-engineer the elevation of the unknown point under the target elevation system. The expression for the plane fitting is: f1(x,y)=a0+a1x+a2y; the surface fitting function is: f2(x,y)=a0+a1x+a2y+a3xy+a4x²+a5y²;

[0028] Based on the fitted elevation difference function values, the target elevation of the point to be determined is calculated. The elevation fitting surface of the sample area is in good agreement with the average elevation difference results, with standard errors of 8 mm and 6 mm respectively, as shown in Table 3. This indicates that it is feasible to take the average elevation within a small area for mutual conversion between different elevation systems.

[0029] Table 3 Comparison of unknown point elevation values ​​under different fitting functions Connecting measurements for high-precision elevation transfer. In mine elevation measurements, reciprocal observations are often used, which can offset the influence of the Earth's curvature and, to some extent, eliminate instrument height errors. However, in vertical shaft elevation connection measurements, according to the elevation connection measurement principle as shown in equation (1-2), instrument height errors are cumulative.

[0030] ; (1) Simplified formula: (2) In the formula: H_lower is the elevation of the target traverse point downhole; H_upper is the elevation of the near-well point on the surface; D_upper is the distance from the near-well point on the surface to the wire; α_upper is the vertical angle from the near-well point on the surface to the marker point on the wire. i 上 The elevation of the near-wellpoint logging station on the ground; l D represents the wellbore depth; D below represents the distance from the target traverse point to the steel wire; α below represents the vertical angle from the target traverse point to the steel wire marker. i 下 The instrument height is set at the target traverse point.

[0031] in: (3) In the formula: S is the instrument's inclination height at the target traverse point; R is the instrument's radius. Similarly, the height of the ground instrument can also be calculated in this way.

[0032] According to the principle of elevation measurement in equation (2), the instrument height error is cumulative during the elevation transfer process, which will result in a relatively large error. Equation (3) can be used to indirectly measure the instrument height to improve the accuracy of elevation transfer.

[0033] To accurately determine the azimuth angle of the gyroscope, understand the rules governing the calculation of instrument parameters by the gyroscope, and then deduce the coordinate azimuth angle of the downhole guide wire, gyroscope orientation observations were conducted on the guide wire side during two relatively special seasons (winter and summer). The operation process is as follows: Measure the instrument parameters on a known edge of the ground: (4) (2) Measure the azimuth angle of the gyroscope on the downhole orientation side: α' T (3) Re-measure the instrument parameters △ after going up the well; (4) Meet the relevant provisions of the Regulations; (5) Calculation of the meridian convergence angle: (5) In the formula: B is the geodetic latitude of the survey station. l The difference in longitude between the station and the target point; η = e' * cosB, where e' is the second elliptic eccentricity of the ellipse, and t = tanB.

[0034] (6) Calculation of the coordinate azimuth of the orientation side α=A-γ=α' T +Δ 平 - γ (6) By observing the gyroscope azimuth angle and utilizing its relationship with the coordinate azimuth angle and the meridian convergence angle, experiments were conducted at different locations to test the instrument parameters and the rate of change of instrument parameters with instrument temperature. The results are shown in Tables 4 and 5: Table 4 Measurement of instrument parameters in winter Winter experiments 1 and 2 show that the instrument parameters are not stable values ​​at different locations. Besides being affected by geographical location, they are significantly influenced by instrument temperature; large temperature variations lead to large parameter variations. Experimental results show that the instrument parameters obtained from the gyro total station are more stable at around 15℃. Figure 6 and Figure 7 As shown.

[0035] When the temperature variation of the instrument is small, the instrument parameters change relatively little and are relatively stable. However, when the temperature variation is large, the instrument parameters also change significantly and are unstable. When the temperature variation is ≤3℃ / 20min (the typical working time interval for a gyro total station is 20 minutes), the changes in instrument parameters are generally positively correlated with the temperature variation. When the temperature variation is >3℃ / 20min, the changes in instrument parameters are generally negatively correlated with the temperature variation. Figure 8 .

[0036] Table 5. Measurement of experimental instrument parameters in summer Three summer experiments showed that the results of the first and second observations in each experiment differed significantly in both instrument temperature and instrument parameters, as shown in Table 5. This indicates that the gyro total station is not stable after north-finding and should be stabilized before data recording. The experiments also revealed a negative correlation between instrument parameters and instrument temperature. Figure 9-11 As shown. Their correlations are as follows:

[0037] f1(x)=-1.615x+2749;f2(x)=-0.4459x+2715;f3(x)=-0.1988x+2710 Where f1(x), f2(x), and f3(x) are the instrument parameter correlation functions; x is the instrument temperature; and the constant term is the instrument parameter.

[0038] While there wasn't a strong correlation between the rate of change of instrument parameters and the rate of change of instrument temperature in a single experiment, statistical analysis of these results revealed a certain correlation between them, as shown in Table 6. In the three summer experiments, the overall instrument temperature change was small (i.e., the instrument temperature was stable), and the instrument parameter changes were also small (i.e., the instrument parameters performed stably). When the instrument temperature increase was within 2℃, the instrument parameters were generally relatively stable. When the increase reached or exceeded 3℃, the instrument parameter changes were more pronounced. A 1℃ decrease in instrument temperature resulted in significant changes in the instrument parameters. Figure 12 As shown.

[0039] Table 6. Statistical Results of Instrument Parameter Change Rate and Temperature Change Rate A high-precision coordinate transfer model is achieved by addressing key operational steps in the surveying process, including surface surveying, underground surveying, point connection, and initial value selection. During coordinate transfer, the selection of initial values ​​for the downhole wireline direction and the precise distance between the traverse point and the wireline effectively ensure the coordinate accuracy of the initial downhole traverse point. In elevation transfer, it is crucial to ensure the elevation accuracy of near-well points on the ground, such as through ground control point connections and combining different surface fitting techniques. Simultaneously, it is essential to maximize the accuracy of field operations, such as using indirect methods to obtain the true instrument elevation. For direction transfer, understanding the working characteristics and performance of the gyro total station in different locations and seasons is beneficial for improving orientation accuracy. After each gyro total station north-finding operation, the initial observation value deviates significantly from subsequent observations. Based on this characteristic, allowing the instrument to stand still for a few minutes before re-observing can improve the accuracy and stability of the observed values. During summer field operations, high ambient temperatures can cause instrument instability and automatic shutdown, causing inconvenience. Therefore, selecting appropriate time periods for field operations is beneficial for improving work efficiency.

[0040] High-precision connection measurement depends on three types of errors: above-ground measurement error, underground measurement error, and point projection error. Building upon existing research, this invention aims to analyze key connection measurement nodes, including the selection of initial direction values ​​for wire readings during direction transfer, distance measurement, elevation transfer, and the performance of gyro-total stations under different environments. The goal is to explore measures to reduce errors and accurately assess instrument performance to improve connection measurement accuracy.

[0041] Based on the same inventive concept, the present invention also provides a mine communication measurement system, comprising: The data preparation module is used to guide a steel wire with marked points into the underground area of ​​the mine to be measured, and mark a target traverse point for the elevation to be measured inside the mine; collect multiple sets of original sequences of the steel wire's direction of periodic oscillation due to the influence of airflow in the shaft, and determine the final vertical direction of the steel wire from the original sequences; measure the instrument parameters of the underground gyro total station multiple times under different ambient temperatures, analyze the law of instrument parameter change with temperature, and determine the temperature range in which the instrument parameters can operate stably; within the temperature range, determine the true north direction of the gyro orientation instrument.

[0042] The elevation calculation module for the target traverse point is used to measure the first distance and first vertical angle from the near-well point to the wire marker point using a ground total station, and calculate the ground elevation of the wire marker point based on the elevation of the near-well point; measure the second distance and second vertical angle from the target traverse point to the wire marker point using a downhole total station; obtain the instrument height of the downhole total station, and calculate the elevation of the target traverse point based on the ground elevation, second distance, second vertical angle of the wire marker point, and the instrument height of the downhole total station.

[0043] The target plane system generation module is used to establish a unified plane coordinate system for both above-ground and underground operations by utilizing the vertical direction of the steel wire, the true north direction located by the gyroscope, and the elevation of the target traverse point, and to measure the target mine based on the plane coordinate system.

[0044] This invention also provides a computer device. At the hardware level, the computer device includes a processor, an internal bus, a network interface, memory, and non-volatile storage, and may also include other hardware required for business operations. The processor reads the corresponding computer program from the non-volatile storage into the memory and then runs it to implement the aforementioned mine communication measurement method.

[0045] The present invention also provides a computer-readable storage medium storing a computer program that can be used to execute the above-described mine contact measurement method.

[0046] Specific limitations regarding the calculation system for mine connection measurement methods can be found in the limitations of the mine connection measurement methods described above, and will not be repeated here. Each module in the aforementioned mine connection measurement system can be implemented entirely or partially through software, hardware, or a combination thereof. These modules can be embedded in or independent of the processor in a computer device in hardware form, or stored in the memory of a computer device in software form, so that the processor can call and execute the corresponding operations of each module.

[0047] The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as the combination of these technical features does not contradict each other, it should be considered within the scope of this specification. Furthermore, the above embodiments only illustrate several implementation methods of this application, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A mine contact measurement method characterized by, The application relates to a method for measuring a target mine. The method comprises the following steps: introducing a steel wire with a marked point into a downhole area of a mine to be measured, marking a target traverse point of a measured elevation in the mine; Collecting a plurality of original sequences of the direction of the steel wire periodically swinging due to the influence of airflow in the shaft, determining the vertical direction of the final steel wire from the original sequences; measuring the instrument parameters of the downhole gyro total station multiple times under different environmental temperatures, analyzing the change rule of the instrument parameters with the temperature, determining the temperature interval in which the instrument parameters can stably work according to the rule; and determining the north direction positioned by the gyro theodolite in the temperature interval. Measuring a first distance and a first vertical angle from a near-well point on the ground to the marked point of the steel wire by using a ground total station, calculating the ground elevation of the marked point of the steel wire in combination with the elevation of the near-well point on the ground; measuring a second distance and a second vertical angle from the target traverse point to the marked point of the steel wire by using a downhole total station; and obtaining the instrument height of the downhole total station, calculating the elevation of the target traverse point based on the ground elevation of the marked point of the steel wire, the second distance, the second vertical angle and the instrument height of the downhole total station. Establishing a unified plane coordinate system of the well and the downhole based on the vertical direction of the steel wire, the north direction positioned by the gyro theodolite and the elevation of the target traverse point, and measuring the target mine based on the plane coordinate system.

2. A mine connection surveying method according to claim 1, characterised in that, The method for collecting a plurality of original sequences of the direction of the steel wire periodically swinging due to the influence of airflow in the shaft, and determining the vertical direction of the final steel wire from the original sequences specifically comprises the following steps: tracking and collecting a plurality of original sequences of the direction of the steel wire periodically swinging due to the influence of airflow in the shaft by using a reverse point method, calculating the average value and the standard deviation of all the original sequences, taking the average value plus or minus one time of the standard deviation as a confidence interval, screening all the original sequences of the direction of the steel wire falling in the confidence interval, and calculating the average value of all the screened original sequences of the direction of the steel wire as the final vertical direction of the steel wire.

3. The mine connection measurement method according to claim 1, characterized in that, The marked point of the steel wire is between the vertical directions of the ground total station and the downhole total station.

4. The mine connection measurement method according to claim 1, wherein The instrument height of the downhole total station is obtained by an indirect measurement method, specifically as follows: An independent reference point is established near the target traverse point, and a prism is placed on this reference point; the slope distance from the center of the downhole total station to the center of the prism is measured using the downhole total station. S ; Measure the horizontal distance from the center of the downhole total station to the center of the prism. R Based on the Pythagorean theorem, according to the formula Calculate the instrument height of the downhole total station. i .

5. The mine connection measurement method according to claim 1, wherein Based on the ground elevation of the steel wire mark point, the second distance, the second vertical angle and the instrument height of the downhole total station, the elevation of the target traverse point is calculated , and the expression is: wherein, is the ground elevation of the wire marker point, is the first distance, is the first vertical angle, is the second distance, is the second vertical angle, is the instrument height of the surface total station, is the instrument height of the downhole total station, l is the depth within the well.

6. The mine connection measurement method according to claim 1, wherein The method further comprises the following steps: since there is a difference between the plane coordinate system and the local coordinate system of the target mine area, the difference is determined by using a polynomial surface fitting method, a GPS gravity method, a weighted mean method and a neural network method.

7. A mine link measurement system characterized by, The application relates to a method for measuring a target mine. The method comprises the following steps: introducing a steel wire with a marked point into a downhole area of a mine to be measured, marking a target traverse point of a measured elevation in the mine; Collecting a plurality of original sequences of the direction of the steel wire periodically swinging due to the influence of airflow in the shaft, determining the vertical direction of the final steel wire from the original sequences; measuring the instrument parameters of the downhole gyro total station multiple times under different environmental temperatures, analyzing the change rule of the instrument parameters with the temperature, determining the temperature interval in which the instrument parameters can stably work according to the rule; and determining the north direction positioned by the gyro theodolite in the temperature interval. The elevation calculation module of the target traverse point is used to calculate the ground elevation of the steel wire marker point by using the ground total station to measure the first distance and the first vertical angle from the ground near-well point to the steel wire marker point, and combining the elevation of the ground near-well point; the second distance and the second vertical angle from the target traverse point to the steel wire marker point are measured by using the downhole total station; the instrument height of the downhole total station is obtained, and the elevation of the target traverse point is calculated based on the ground elevation of the steel wire marker point, the second distance, the second vertical angle and the instrument height of the downhole total station; The target plane system generation module is used to establish a unified plane coordinate system on and under the well by using the vertical direction of the steel wire, the north direction positioned by the gyroscopic orientation instrument and the elevation of the target traverse point, and to measure the target mine based on the plane coordinate system.

8. A computer device comprising a memory, a processor, and a computer program stored on the memory, wherein the computer program comprises instructions that, when executed by the processor, cause the processor to perform the method of any one of claims 1-7. The processor executes the computer program to implement the steps of the method of any one of claims 1 to 6.

9. A computer-readable storage medium having stored thereon a computer program, characterized in that, The computer program can execute the steps of the method of any one of claims 1 to 6 when loaded by the processor.

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