A road surface detection sampling method and system for highway construction technology

Abstract

The application relates to a road surface detection sampling method and system for highway construction technology, and relates to the field of engineering detection technology.The method comprises the following steps: establishing a detection interval according to a fixed time length on a time axis; acquiring the horizontal bubble position of a level meter at each time point in the detection interval; counting the horizontal bubble positions to determine the number of same positions, determining the number of the same positions with the maximum value according to a sorting rule, defining the horizontal bubble position corresponding to the number of the same positions as a standard bubble position, and defining the horizontal bubble position of the current time point as a detection bubble position; calculating the standard bubble position and the detection bubble position to determine the device inclination direction and the device inclination angle; determining the required adjustment direction according to the device inclination direction, controlling the drill bit to rotate the device inclination angle along the required adjustment direction, and controlling the drill bit operation after the rotation is completed.The application has the effect of improving the accuracy of soil thickness detection.

Description

Technical Field

[0001] This application relates to the field of engineering testing technology, and in particular to a pavement testing sampling method and system for highway construction technology. Background Technology

[0002] During highway construction, it is necessary to first test the road surface conditions. The parameters to be tested include soil quality and soil thickness. Commonly used equipment includes road coring drills.

[0003] In related technologies, when using a road coring drill to detect soil thickness, the drill is controlled to move to the location on the road surface where sampling is required, and the drill bit is controlled to move downward to sample the soil. The soil thickness can be determined by the distance the screw moves downward.

[0004] Regarding the aforementioned technologies, the inventors believe that when the road surface is uneven, the drilling rig itself will tilt, causing the drill bit to sample the soil at an angle. In this case, the soil thickness obtained is greater than the actual thickness, resulting in inaccurate soil thickness detection, and there is still room for improvement. Summary of the Invention

[0005] To improve the accuracy of soil thickness detection, this application provides a pavement testing sampling method and system for highway construction technology.

[0006] Firstly, this application provides a pavement testing and sampling method for highway construction technology, employing the following technical solution:

[0007] A method for pavement testing and sampling in highway construction technology, comprising:

[0008] Establish a detection interval on a preset timeline based on a preset fixed duration, and make the end point of the detection interval coincide with the current time point;

[0009] The preset level bubble position of the level instrument is obtained at each time point within the detection interval;

[0010] The number of identical positions is determined by counting the positions of each horizontal bubble, and the number of identical positions with the largest value is determined according to the preset sorting rules. The horizontal bubble position corresponding to the number of identical positions is defined as the standard bubble position, and the horizontal bubble position at the current time point is defined as the detection bubble position.

[0011] The tilt direction and tilt angle of the equipment are determined by calculation based on the standard bubble position and the detected bubble position.

[0012] The required adjustment direction is determined based on the equipment's tilt direction, and the preset drill bit is controlled to rotate the equipment's tilt angle along the required adjustment direction. After the rotation is completed, the drill bit is controlled to operate.

[0013] By adopting the above technical solution, when using a road coring drill to sample soil and simultaneously measure soil thickness, the current road conditions can be determined by analyzing the historical movement of the drill. This allows the drill to determine the inclination of its current location relative to the road's horizontal position, enabling the drill bit to automatically adjust its direction based on the inclination. This ensures the drill bit is directly facing the road surface and working downwards, thereby reducing errors caused by inclination during sampling and improving the accuracy of soil thickness detection.

[0014] Optionally, after determining the number of identical locations with the largest values, the pavement testing sampling method for highway construction technology also includes:

[0015] The number of identical positions with the largest value is defined as the standard number of positions, and the total number of positions is determined by summing all the identical position counts.

[0016] The standard percentage is determined by calculating the number of standard locations and the total number of locations.

[0017] Determine whether the standard percentage is greater than the preset benchmark percentage;

[0018] If the standard proportion is greater than the baseline proportion, then the standard bubble position is defined according to the horizontal bubble position corresponding to the number of standard positions;

[0019] If the standard proportion is not greater than the benchmark proportion, the road segment is determined within the detection interval based on the current time point and the preset demand proportion.

[0020] Within the road segment determination interval, the number of identical positions with the largest value is determined according to the sorting rules, and the standard bubble position is defined based on the horizontal bubble position corresponding to the number of identical positions.

[0021] By adopting the above technical solution, the position of the standard bubble can be determined more effectively, so as to facilitate the subsequent determination of the inclination of the drilling rig.

[0022] Optionally, it also includes a step for determining the proportion of demand, which includes:

[0023] Determine the number of identical positions for the second largest value according to the sorting rules, and define this number of identical positions as the number of comparison positions;

[0024] The comparison percentage is determined by calculating the number of comparison positions and the total number of positions.

[0025] The remaining percentage and relative ratio are determined by calculation based on the standard percentage and the comparative percentage;

[0026] The proportion of shares that can be divided in comparison is determined by calculation based on the relative ratio and the remaining proportion;

[0027] The demand percentage is determined by summing the proportions of the divisible components and the proportions of the components.

[0028] By adopting the above technical solutions, the most effective demand ratio can be determined based on the drilling rig's operating conditions.

[0029] Optional steps for controlling drill bit operation include:

[0030] Obtain the position of the drilling rig's outriggers;

[0031] After the drill bit has rotated, a horizontal plane is established based on the drill bit, and the positions of the drill rig's outriggers are projected onto the horizontal plane to determine the outrigger projection positions. The projection positions of each outrigger are then connected to determine the projection range.

[0032] Determine the center point of the range within the projection area, and determine the detection range based on the center point and the preset scaling ratio;

[0033] Control the drilling rig to move horizontally within the detection range to obtain the current position of the drilling rig and the distance between obstacles;

[0034] After the drilling rig has moved completely within the detection range, the number of obstacle points is determined by counting the distance between each obstacle. The number of obstacle points with the largest value is determined according to the sorting rules, and the current position of the drilling rig corresponding to the number of obstacle points is defined as the feasible working position.

[0035] Determine the target work location from all feasible work locations, control the drilling rig to move towards the target work location, and control the drill bit to work downwards after the movement is completed.

[0036] By adopting the above technical solution, the drill bit can be positioned in a normal location on the road surface, thus making the soil thickness detection more accurate.

[0037] Optionally, the step of determining the target job location from all feasible job locations includes:

[0038] The sampling area is defined with any feasible operating location as the center and a preset sampling distance as the radius;

[0039] Count the feasible operation locations within the sampling area to determine the feasible quantity of the area;

[0040] The feasible percentage is determined by calculating based on the number of feasible areas and the preset number of samples.

[0041] Determine whether the feasible percentage is greater than the preset lower limit of demand percentage;

[0042] If the feasible percentage is not greater than the lower limit of demand, then the feasible operation location in the sampling area that determines the feasible percentage will be defined as an invalid location.

[0043] If the feasible percentage is greater than the lower limit of demand percentage, then the feasible operation location in the sampling area that determines the feasible percentage is defined as the valid location.

[0044] Determine the required movement distance based on the current and effective locations of the drilling rig;

[0045] The minimum required movement distance is determined based on the sorting rules, and the corresponding effective location is identified as the target work location.

[0046] By adopting the above technical solution, the target working position can be effectively determined for the drill bit to perform operations.

[0047] Optionally, after determining the feasible quantity of the area, the step of determining the target operation location further includes:

[0048] Within the sampling area, the current position of the drilling rig that is not a feasible operating position is defined as an abnormal operating position, and the obstacle interval distance corresponding to the abnormal operating position is defined as the abnormal interval distance, while the obstacle interval distance corresponding to the feasible operating position is defined as the standard interval distance.

[0049] The difference interval distance is determined by calculating the difference between each abnormal interval distance and the standard interval distance.

[0050] The correction parameters corresponding to the difference interval distance are determined based on the preset parameter matching relationship;

[0051] The adjustment parameters are determined based on all the correction parameters, and the number of feasible areas is updated based on the adjustment parameters.

[0052] By adopting the above technical solution, the feasible quantity of the area can be updated according to the specific conditions of each location on the road surface, so that the target operation location determined later is more accurate.

[0053] Optionally, after determining the minimum required travel distance, the pavement testing and sampling methods used in highway construction technology also include:

[0054] The minimum required movement distance is needed to determine whether there are at least two valid locations.

[0055] If there are no two valid locations with the smallest required movement distance, then the target operation location is determined based on the only valid location with the smallest required movement distance.

[0056] If there are at least two valid locations with the smallest required movement distance, then the adjustment parameter with the smallest value is determined among these valid locations according to the sorting rules, and the valid location corresponding to the adjustment parameter is determined as the target operation location.

[0057] By adopting the above technical solution, a more suitable target operation location can be determined for use among multiple target operation locations that meet the requirements.

[0058] Secondly, this application provides a pavement testing and sampling system for highway construction technology, which adopts the following technical solution:

[0059] A pavement testing and sampling system for highway construction technology includes:

[0060] The acquisition module, connected to the processing module, is used for acquiring information.

[0061] The processing module, connected to the acquisition module, is used for information storage and processing;

[0062] The processing module establishes a detection interval on a preset time axis according to a preset fixed duration, and makes the end point of the detection interval coincide with the current time point;

[0063] The acquisition module obtains the preset level bubble position of the level instrument at each time point within the detection interval;

[0064] The processing module counts the positions of each horizontal bubble to determine the number of identical positions, and determines the number of identical positions with the largest value according to a preset sorting rule. The horizontal bubble position corresponding to this number of identical positions is defined as the standard bubble position, and the horizontal bubble position at the current time point is defined as the detection bubble position.

[0065] The processing module calculates and determines the tilt direction and tilt angle of the equipment based on the standard bubble position and the detected bubble position.

[0066] The processing module determines the required adjustment direction based on the equipment's tilt direction, controls the preset drill bit to rotate the equipment's tilt angle along the required adjustment direction, and controls the drill bit to operate after the rotation is completed.

[0067] By adopting the above technical solution, when using a road coring drill to sample soil and simultaneously measure soil thickness, the processing module analyzes the historical movement of the drill to determine the current road conditions. This allows the drill to determine the inclination of its current location relative to a level road, enabling the drill bit to automatically adjust its direction based on the inclination. This ensures the drill bit is directly facing the road surface and working downwards, reducing errors caused by inclination during sampling and improving the accuracy of soil thickness detection.

[0068] In summary, this application includes at least one of the following beneficial technical effects:

[0069] 1. When detecting soil thickness using a drilling rig, the tilt of the drilling rig during placement can be analyzed to allow the drill bit to be adjusted to operate perpendicular to the road surface, thereby reducing the occurrence of tilting during drill bit operation and improving the accuracy of soil thickness detection.

[0070] 2. The current road surface conditions can be analyzed based on the movement of the drilling rig over a period of time, so as to facilitate subsequent analysis of the drilling rig's tilt.

[0071] 3. The road surface at the location of the drilling rig can be analyzed so that the drill bit can effectively work on the soil that represents the current road surface, thereby making the subsequent test results more accurate. Attached Figure Description

[0072] Figure 1 This is a flowchart of a road surface testing and sampling method used in highway construction technology.

[0073] Figure 2 This is a flowchart of the standard bubble position determination method.

[0074] Figure 3 This is a flowchart of the method for determining the demand percentage.

[0075] Figure 4 This is a flowchart of the drill bit operation control method.

[0076] Figure 5 This is a flowchart of the method for determining the target operation location.

[0077] Figure 6 This is a flowchart of the method for updating the feasible quantity of a region.

[0078] Figure 7 This is a flowchart of the target job location selection method.

[0079] Figure 8 This is a flowchart of the road surface testing and sampling methods used in highway construction technology. Detailed Implementation

[0080] To make the purpose, technical solution, and advantages of this application clearer, the following description is provided in conjunction with the appendix. Figure 1-8 The present application will be further described in detail below with reference to embodiments. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the application.

[0081] The embodiments of this application will now be described in further detail with reference to the accompanying drawings.

[0082] This application discloses a road surface testing and sampling method for highway construction technology. When sampling road surface soil and detecting soil thickness using a drilling rig, the angle of the drill bit is adjusted by analyzing the inclination of the drilling rig on the road surface so that the drill bit can be perpendicular to the road surface. At the same time, the position where the drill bit can operate is analyzed to determine the position that can effectively represent the specific condition of the road surface, thereby making the results detected by the drill bit during operation more accurate.

[0083] Reference Figure 1 The procedure for pavement testing and sampling in highway construction technology includes the following steps:

[0084] Step S100: Establish a detection interval on the preset time axis according to a preset fixed duration, and make the end point of the detection interval coincide with the current time point.

[0085] The time axis is a coordinate axis formed by the combination of various time points. The fixed duration is a set value set by the staff to analyze the road conditions of the drilling rig under the current working conditions. The detection interval is established to facilitate the acquisition and analysis of the current drilling rig's operation data.

[0086] Step S101: Obtain the preset level bubble position of the level instrument at each time point within the detection interval.

[0087] A level is an instrument installed on a drilling rig to display the levelness of the rig. The position of the level bubble is the location of the bubble in the level. The offset angle and direction of the bubble relative to the center position are the tilt angle and direction of the drilling rig.

[0088] Step S102: Count the positions of each horizontal bubble to determine the number of identical positions, and determine the number of identical positions with the largest value according to the preset sorting rules. Define the horizontal bubble position corresponding to the number of identical positions as the standard bubble position, and define the horizontal bubble position at the current time point as the detection bubble position.

[0089] The number of identical positions refers to the number of time points at which the determined horizontal bubble positions are the same. The sorting rule is a method set by the staff to sort the numerical values, such as the bubble sort method. The sorting rule can determine the number of identical positions with the largest value, which corresponds to the position with the most horizontal bubble positions. In other words, the horizontal bubble position corresponds to the position of the drilling rig on the uneven road. At this time, the standard bubble position and the detection bubble position are defined to facilitate the subsequent analysis of the tilt of the drilling rig at the current time point.

[0090] Step S103: Calculate the tilt direction and tilt angle of the equipment based on the standard bubble position and the detected bubble position.

[0091] The tilt direction of the equipment is the direction in which the equipment tilts relative to the road surface, and the tilt angle of the equipment is the angle in which the equipment tilts relative to the road surface. The specific steps for determining the tilt of the equipment by the deviation of the bubble position are conventional technical means for those skilled in the art and will not be described in detail.

[0092] Step S104: Determine the required adjustment direction based on the equipment tilt direction, and control the preset drill bit to rotate the equipment tilt angle along the required adjustment direction, and control the drill bit to operate after the rotation is completed.

[0093] The required adjustment direction is the direction in which the drill bit on the drilling rig needs to be adjusted. The required adjustment direction is opposite to the tilt direction of the equipment. Controlling the drill bit along the required adjustment direction allows the drill bit to rotate and be perpendicular to the road surface where the drilling rig is located. In this case, the drill bit is less likely to tilt and insert into the road surface during operation, thereby improving the accuracy of soil thickness detection.

[0094] Reference Figure 2 After determining the number of identical locations with the largest numerical values, the road surface testing sampling methods used in highway construction technology also include:

[0095] Step S200: Define the number of identical positions with the largest value as the standard number of positions, and sum the numbers of all identical positions to determine the total number of positions.

[0096] A standard number of locations is defined to identify the number of horizontal bubble locations that appear most frequently, which facilitates subsequent analysis. The total number of locations is the number of horizontal bubble locations that can be detected at all time points within a fixed time period.

[0097] Step S201: Calculate the standard percentage based on the number of standard positions and the total number of positions.

[0098] The standard percentage is the ratio of the most frequently occurring horizontal bubble position to the total number of positions in all detection processes, determined by dividing the number of standard positions by the total number of positions.

[0099] Step S202: Determine whether the standard percentage is greater than the preset benchmark percentage.

[0100] The baseline percentage is the minimum standard percentage set by the staff to determine that the current level bubble position can represent the current road surface level. For example, if the drilling rig is on flat ground, 90% of the level bubble positions are at (0,0), and the baseline percentage is 80%, then it can be determined that the equipment is on flat ground when the level bubble position is at (0,0). The purpose of the judgment is to determine whether the drilling rig is on a flat position of the current road surface.

[0101] Step S2021: If the standard proportion is greater than the baseline proportion, then define the standard bubble position according to the horizontal bubble position corresponding to the number of standard positions.

[0102] When the standard proportion is greater than the baseline proportion, it indicates that the position of the most frequent horizontal bubble is the bubble position when the drilling rig is in a flat road surface position. This position can be defined as the standard bubble position.

[0103] Step S2022: If the standard proportion is not greater than the benchmark proportion, the road segment determination interval is defined within the detection interval based on the current time point and the preset demand proportion.

[0104] When the standard proportion is not greater than the benchmark proportion, it means that the road surface smoothness cannot be determined by the number of times the horizontal bubble position appears in the detection interval. In other words, the drilling rig may move from one smooth road surface to another, such as from flat ground to a flat slope. Further analysis is needed for this situation. The demand proportion is the numerical proportion used to define the detection interval. The specific determination method will be explained below. The road segment judgment interval is the demand of the span to the span demand of the detection interval, and the end point of the road segment judgment interval coincides with the current time point. The road segment judgment interval is defined to facilitate further analysis of the road surface condition.

[0105] Step S203: Determine the number of identical positions with the largest value in the road segment determination interval according to the sorting rules, and define the standard bubble position according to the horizontal bubble position corresponding to the number of identical positions.

[0106] The number of identical positions with the largest value is determined in the road segment determination interval by sorting rules, which is the movement of the drilling rig in the most recent period. At this time, the horizontal bubble position corresponding to the number of identical positions is the bubble position when the road surface where the drilling rig is located is flat. This horizontal bubble position is defined as the standard bubble position to facilitate the subsequent analysis of the drilling rig tilt.

[0107] Reference Figure 3 It also includes the step of determining the demand share, which includes:

[0108] Step S300: Determine the number of identical positions for the second largest value according to the sorting rules, and define the number of identical positions as the number of comparison positions.

[0109] When a drilling rig moves from one road surface to another, two representative road surface conditions will appear. At this time, the representative horizontal bubble positions are different, so it is necessary to analyze the two different numbers of horizontal bubble positions. Define the number of comparison positions to distinguish the different numbers of the same position for subsequent analysis.

[0110] Step S301: Calculate the comparison ratio based on the number of comparison positions and the total number of positions.

[0111] The comparison proportion is the percentage of horizontal bubble positions corresponding to the number of comparison positions appearing in the detection interval, which is determined by dividing the number of comparison positions by the total number of positions.

[0112] Step S302: Calculate the remaining percentage and relative ratio based on the standard percentage and the comparative percentage.

[0113] The remaining percentage is the ratio of the number of identical positions at the third largest value and subsequent values ​​in the sorting rules to the total number of positions. The relative ratio is the ratio between the standard percentage and the comparison percentage. For example, if the standard percentage is 60% and the comparison percentage is 30%, then the remaining percentage is 10%, and the relative ratio is 2:1.

[0114] Step S303: Calculate and determine the proportion of the comparison divisible based on the relative ratio and the remaining proportion.

[0115] The length of the drilling rig on different smooth road surfaces can be roughly determined based on the relative ratio, thus enabling a general distinction between the situations. The comparative separable percentage is the ratio of the remaining percentage to the road segment judgment interval corresponding to the comparative percentage. Taking the above example, the comparative separable percentage is 3.3%.

[0116] Step S304: Summing up the divisible proportions and the comparison proportions to determine the demand proportion.

[0117] By using the ratio of divisible components to determine the ratio of demand, the established road segment determination interval can effectively analyze the drilling rig's condition on the current flat road surface, thus facilitating the subsequent determination of the standard bubble position.

[0118] Reference Figure 4 The steps for controlling drill bit operation include:

[0119] Step S400: Obtain the position of the drilling rig's outriggers.

[0120] To facilitate the drilling rig's detection of different soil locations, casters are installed on the rig for easy movement. Typically, three casters are provided for this purpose. The position of the rig's outriggers corresponds to the position of the casters. A spatial coordinate system can be established in any direction at any outrigger position to determine the positions of the other two outriggers.

[0121] Step S401: After the drill bit has rotated, establish a horizontal plane based on the drill bit, and project the position of the drill rig's outriggers onto the horizontal plane to determine the outrigger projection position, and connect the projection positions of each outrigger to determine the projection range.

[0122] The horizontal plane is the plane that the drill bit can be perpendicular to after rotation, which is the plane when the road surface where the drill rig is currently located is flat. The projection position of the outrigger is the position corresponding to the vertical projection of the drill rig's outrigger position on the horizontal plane. The projection range is the range enclosed by the connection of the projection positions of the three outriggers.

[0123] Step S402: Determine the center point of the range within the projection range, and determine the detection range based on the center point and the preset scaling ratio.

[0124] The center point of the range is the center point of the projected range, that is, the centroid of the triangle of the projected range. The scaling ratio is a fixed ratio set by the staff. The projected range is scaled according to the scaling ratio by using the center point of the range as the origin to determine the detection range. This detection range is the range in which the drill bit can operate on the soil.

[0125] Step S403: Control the drilling rig to move horizontally within the detection range to obtain the current position of the drilling rig and the distance between obstacles.

[0126] The movement of the drilling rig within the detection range refers to the translation of the drilling rig at the same height. The current position of the drilling rig is the position of the drilling rig within the detection range. The obstacle interval distance is the distance between the drill bit and the soil on the ground when the drilling rig is at its current position, which can be obtained by installing a distance sensor on the drill bit.

[0127] Step S404: After the drilling rig has moved completely within the detection range, count the number of obstacle points according to the distance between each obstacle, determine the number of obstacle points with the largest value according to the sorting rules, and define the current position of the drilling rig corresponding to the number of obstacle points as the feasible working position.

[0128] The number of obstacle points is the number of drilling rig positions corresponding to the same obstacle interval distance. By sorting the rules, the obstacle interval distance that appears most frequently can be determined, and this obstacle interval distance can be identified as the distance between the drill bit and the current flat road surface. At this time, feasible working positions are defined to distinguish different drilling rig positions for subsequent analysis.

[0129] Step S405: Determine the target working position from all feasible working positions, control the drilling rig to move towards the target working position, and control the drill bit to work downwards after the movement is completed.

[0130] The target working position is the location where the drilling rig will be lowered for sampling. This position is one of all feasible working positions. The specific method for determining this position will be explained below and will not be repeated here. Control the drilling rig to move towards the target working position, and after the movement is completed, control the drill bit to work downwards so that the drill bit can work on a relatively flat road surface, thereby avoiding uneven areas on the road surface, so as to obtain a more accurate soil thickness.

[0131] Reference Figure 5 The steps to determine the target job location from all feasible job locations include:

[0132] Step S500: Delineate the sampling area with any feasible working location as the center and a preset sampling distance as the radius.

[0133] The sampling distance is the radius that the drill bit can cover when sampling, and the sampling area is the area that can be covered by sampling with the feasible operating position as the center.

[0134] Step S501: Count the feasible operation locations in the sampling area to determine the number of feasible operations in the area.

[0135] The number of feasible locations in a region is the total number of feasible work locations that appear in the sampled region.

[0136] Step S502: Calculate the feasible percentage based on the number of feasible areas and the preset number of samples.

[0137] The sampling quantity is the total number of locations that can be covered by the sampling area, and the feasible percentage is the percentage of feasible work locations within the sampling area, which is determined by the area's feasible quantity and the sampling quantity.

[0138] Step S503: Determine whether the feasible percentage is greater than the preset lower limit of demand percentage.

[0139] The lower limit of demand is the minimum feasible percentage set by the staff to determine when the sampling effect is considered to be good. The purpose of the judgment is to know whether the sampling effect is good when the test is carried out in the current sampling area.

[0140] Step S5031: If the feasible percentage is not greater than the lower limit of demand percentage, then the feasible operation location of the sampling area that determines the feasible percentage is defined as an invalid location.

[0141] When the feasible percentage is not greater than the lower limit of demand percentage, it indicates that the currently defined sampling area has not achieved a good sampling effect. In this case, the feasible operation location that forms the sampling area is defined as an invalid location to distinguish between different feasible operation locations, which is convenient for subsequent analysis.

[0142] Step S5032: If the feasible percentage is greater than the lower limit of demand percentage, then the feasible operation location of the sampling area that determines the feasible percentage is defined as the valid location.

[0143] When the feasible percentage is greater than the lower limit of demand percentage, it indicates that the currently defined sampling area has a good sampling effect. At this time, the feasible operation location that forms the sampling area is defined as the effective location to distinguish different feasible operation locations, which is convenient for subsequent analysis.

[0144] Step S504: Determine the required moving distance based on the current position and effective position of the drilling rig.

[0145] The required movement distance is the distance that the drilling rig needs to move from its current position to the effective position, which is the straight-line distance between the current position of the drilling rig and the effective position.

[0146] Step S505: Determine the minimum required movement distance according to the sorting rules, and determine the effective location corresponding to the required movement distance as the target operation location.

[0147] By using sorting rules to determine the effective position with the minimum required movement distance, the drill bit can be moved the shortest distance. This effective position is then designated as the target working position to improve the overall efficiency of drilling operations.

[0148] Reference Figure 6 After determining the feasible quantity in the area, the steps for determining the target operation location also include:

[0149] Step S600: Within the sampling area, define the current position of the drilling rig that is not a feasible operating position as an abnormal operating position, define the obstacle interval distance corresponding to the abnormal operating position as the abnormal interval distance, and define the obstacle interval distance corresponding to the feasible operating position as the standard interval distance.

[0150] Define abnormal operation locations to distinguish the current positions of different drilling rigs, facilitating subsequent analysis; at the same time, define abnormal interval distances and standard interval distances to distinguish obstacle interval distances obtained under two different conditions, facilitating subsequent analysis.

[0151] Step S601: Calculate the difference between each abnormal interval distance and the standard interval distance to determine the difference interval distance.

[0152] The difference interval distance is the difference between the abnormal interval distance and the standard interval distance, and this difference is an absolute value.

[0153] Step S602: Determine the correction parameter corresponding to the difference interval distance according to the preset parameter matching relationship.

[0154] Different difference intervals indicate different levels of depression or protrusion at the corresponding locations. The larger the value, the greater the depression or protrusion, and the greater the impact on sampling. When sampling with the drill bit, areas with larger protrusions or depressions should be avoided as much as possible. The correction parameter is a value that reflects the degree of depression or protrusion at the current location. Different difference intervals correspond to different correction parameters. The parameter matching relationship between the two is determined and stored in advance by the staff through multiple experiments.

[0155] Step S603: Calculate and determine the adjustment parameters based on all the correction parameters, and update the number of feasible areas based on the adjustment parameters.

[0156] The adjustment parameter is the sum of all correction parameters. The number of feasible regions is updated by subtracting the adjustment parameter from the number of feasible regions. This allows for a greater correction of the number of feasible regions when the correction parameter is larger, thus making the determination of effective and invalid locations more accurate.

[0157] Reference Figure 7 After determining the minimum required moving distance, road surface testing and sampling methods used in highway construction technology also include:

[0158] Step S700: Determine whether there are at least two valid locations where the required movement distance is minimized.

[0159] The purpose of this judgment is to determine whether there are multiple valid locations that meet the requirements, so as to facilitate the subsequent determination of the target operation location.

[0160] Step S7001: If there are no two valid locations with the smallest required movement distance, then the target operation location is determined based on the only valid location with the smallest required movement distance.

[0161] When there are no two valid locations with the minimum required movement distance, it means that there is only one valid location that meets the requirements. In this case, the valid location can be determined as the target operation location.

[0162] Step S7002: If there are at least two valid locations with the smallest required movement distance values, then determine the adjustment parameter with the smallest value among these valid locations according to the sorting rules, and determine the target operation location as the valid location corresponding to the adjustment parameter.

[0163] When there are at least two valid locations with the smallest required movement distance, it means that there are multiple valid locations that meet the requirements. At this time, it is necessary to continue filtering among the multiple valid locations. The adjustment parameter with the smallest value can be determined by the sorting rules. That is, the sampling area defined by the valid location at this time is the flattest. At this time, the valid location is determined as the target working location so that the drill bit can carry out sampling operations.

[0164] Reference Figure 8 Based on the same inventive concept, embodiments of the present invention provide a pavement testing and sampling system for highway construction technology, comprising:

[0165] The acquisition module, connected to the processing module, is used for acquiring information.

[0166] The processing module, connected to the acquisition module, is used for information storage and processing;

[0167] The processing module establishes a detection interval on a preset time axis according to a preset fixed duration, and makes the end point of the detection interval coincide with the current time point;

[0168] The acquisition module obtains the preset level bubble position of the level instrument at each time point within the detection interval;

[0169] The processing module counts the positions of each horizontal bubble to determine the number of identical positions, and determines the number of identical positions with the largest value according to a preset sorting rule. The horizontal bubble position corresponding to this number of identical positions is defined as the standard bubble position, and the horizontal bubble position at the current time point is defined as the detection bubble position.

[0170] The processing module calculates and determines the tilt direction and tilt angle of the equipment based on the standard bubble position and the detected bubble position.

[0171] The processing module determines the required adjustment direction based on the equipment tilt direction, controls the preset drill bit to rotate the equipment tilt angle along the required adjustment direction, and controls the drill bit to operate after the rotation is completed.

[0172] The standard bubble position determination module is used to determine a more accurate standard bubble position for use.

[0173] The demand percentage determination module is used to determine a more appropriate demand percentage for use.

[0174] The drill bit operation control module is used to control the drill bit operation so that the detection results obtained from the drill bit operation are highly accurate;

[0175] The target work location determination module is used to determine a suitable target work location for the drill bit to perform its work.

[0176] The regional feasible quantity update module updates the regional feasible quantity based on the specific road surface conditions within the sampling area.

[0177] The target job location filtering module performs unique location filtering on multiple target job locations that meet the requirements.

[0178] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the above-described division of functional modules is used as an example. In practical applications, the above functions can be assigned to different functional modules as needed, that is, the internal structure of the device can be divided into different functional modules to complete all or part of the functions described above. The specific working process of the system, device, and unit described above can be referred to the corresponding process in the foregoing method embodiments, and will not be repeated here.

Claims

1. A method for pavement testing and sampling in highway construction technology, characterized in that, include: Establish a detection interval on a preset timeline based on a preset fixed duration, and make the end point of the detection interval coincide with the current time point; The preset level bubble position of the level instrument is obtained at each time point within the detection interval; The number of identical positions is determined by counting the positions of each horizontal bubble, and the number of identical positions with the largest value is determined according to the preset sorting rules. The horizontal bubble position corresponding to the number of identical positions is defined as the standard bubble position, and the horizontal bubble position at the current time point is defined as the detection bubble position. The tilt direction and tilt angle of the equipment are determined by calculation based on the standard bubble position and the detected bubble position. The required adjustment direction is determined based on the tilt direction of the equipment, and the preset drill bit is controlled to rotate the equipment tilt angle along the required adjustment direction. After the rotation is completed, the drill bit is controlled to operate. After determining the number of identical locations with the largest numerical values, road surface testing sampling methods used in highway construction technology also include: The number of identical positions with the largest value is defined as the standard number of positions, and the total number of positions is determined by summing all the identical position counts. The standard percentage is determined by calculating the number of standard locations and the total number of locations. Determine whether the standard percentage is greater than the preset benchmark percentage; If the standard proportion is greater than the baseline proportion, then the standard bubble position is defined according to the horizontal bubble position corresponding to the number of standard positions; If the standard proportion is not greater than the benchmark proportion, the road segment is determined within the detection interval based on the current time point and the preset demand proportion. Within the road segment determination interval, the number of identical positions with the largest value is determined according to the sorting rules, and the standard bubble position is defined based on the horizontal bubble position corresponding to the number of identical positions.

2. The method for road surface testing and sampling in highway construction technology according to claim 1, characterized in that, It also includes the step of determining the demand share, which includes: Determine the number of identical positions for the second largest value according to the sorting rules, and define this number of identical positions as the number of comparison positions; The comparison percentage is determined by calculating the number of comparison positions and the total number of positions. The remaining percentage and relative ratio are determined by calculation based on the standard percentage and the comparative percentage. The remaining percentage is the ratio of the number of identical positions with the third largest value and the following values ​​in the sorting rule to the total number of positions. The relative ratio is the ratio between the standard percentage and the comparative percentage. The comparable separable proportion is determined by calculating the relative ratio and the remaining proportion, where the comparable separable proportion is the ratio of the remaining proportion to the road segment determination interval corresponding to the comparable proportion; The demand percentage is determined by summing the proportions of the divisible components and the proportions of the components.

3. The method for road surface testing and sampling in highway construction technology according to claim 1, characterized in that, The steps for controlling drill bit operation include: Obtain the position of the drilling rig's outriggers; After the drill bit has rotated, a horizontal plane is established based on the drill bit, and the positions of the drill rig's outriggers are projected onto the horizontal plane to determine the outrigger projection positions. The projection positions of each outrigger are then connected to determine the projection range. Determine the center point of the range within the projection area, and determine the detection range based on the center point and the preset scaling ratio; Control the drilling rig to move horizontally within the detection range to obtain the current position of the drilling rig and the obstacle interval distance, where the obstacle interval distance is the distance between the drill bit and the soil on the ground when the drilling rig is at its current position; After the drilling rig has moved completely within the detection range, the number of obstacle points is determined by counting the distance between each obstacle. The number of obstacle points with the largest value is determined according to the sorting rules, and the current position of the drilling rig corresponding to the number of obstacle points is defined as the feasible working position. Determine the target work location from all feasible work locations, control the drilling rig to move towards the target work location, and control the drill bit to work downwards after the movement is completed.

4. The method for road surface testing and sampling in highway construction technology according to claim 3, characterized in that, The steps to determine the target job location from all feasible job locations include: The sampling area is defined with any feasible operating location as the center and a preset sampling distance as the radius; Count the feasible operation locations within the sampling area to determine the feasible quantity of the area; The feasible percentage is determined by calculating based on the number of feasible areas and the preset number of samples. Determine whether the feasible percentage is greater than the preset lower limit of demand percentage; If the feasible percentage is not greater than the lower limit of demand, then the feasible operation location in the sampling area that determines the feasible percentage will be defined as an invalid location. If the feasible percentage is greater than the lower limit of demand percentage, then the feasible operation location in the sampling area that determines the feasible percentage is defined as the valid location. Determine the required movement distance based on the current and effective locations of the drilling rig; The minimum required movement distance is determined based on the sorting rules, and the corresponding effective location is identified as the target work location.

5. The method for road surface testing and sampling in highway construction technology according to claim 4, characterized in that, After determining the feasible quantity of the area, the steps for determining the target operation location also include: Within the sampling area, the current position of the drilling rig that is not a feasible operating position is defined as an abnormal operating position, and the obstacle interval distance corresponding to the abnormal operating position is defined as the abnormal interval distance, while the obstacle interval distance corresponding to the feasible operating position is defined as the standard interval distance. The difference interval distance is determined by calculating the difference between each abnormal interval distance and the standard interval distance. The correction parameters corresponding to the difference interval distance are determined based on the preset parameter matching relationship; The adjustment parameters are determined based on all the correction parameters, and the number of feasible areas is updated based on the adjustment parameters.

6. The method for pavement testing and sampling in highway construction technology according to claim 5, characterized in that, After determining the minimum required travel distance, road surface testing and sampling methods used in highway construction technology also include: The minimum required movement distance is needed to determine whether there are at least two valid locations. If there are no two valid locations with the smallest required movement distance, then the target operation location is determined based on the only valid location with the smallest required movement distance. If there are at least two valid locations with the smallest required movement distance, then the adjustment parameter with the smallest value is determined among these valid locations according to the sorting rules, and the valid location corresponding to the adjustment parameter is determined as the target operation location.

7. A pavement testing and sampling system for highway construction technology, applied to the method described in any one of claims 1-6, characterized in that, include: The acquisition module, connected to the processing module, is used for acquiring information. The processing module, connected to the acquisition module, is used for information storage and processing; The processing module establishes a detection interval on a preset time axis according to a preset fixed duration, and makes the end point of the detection interval coincide with the current time point; The acquisition module obtains the preset level bubble position of the level instrument at each time point within the detection interval; The processing module counts the positions of each horizontal bubble to determine the number of identical positions, and determines the number of identical positions with the largest value according to a preset sorting rule. The horizontal bubble position corresponding to this number of identical positions is defined as the standard bubble position, and the horizontal bubble position at the current time point is defined as the detection bubble position. The processing module calculates and determines the tilt direction and tilt angle of the equipment based on the standard bubble position and the detected bubble position. The processing module determines the required adjustment direction based on the equipment's tilt direction, controls the preset drill bit to rotate the equipment's tilt angle along the required adjustment direction, and controls the drill bit to operate after the rotation is completed.

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