A method and system for detecting performance of building materials

Abstract

The present invention relates to the field of material testing technology, and in particular, to a method and system for testing the performance of building materials. The method provided by the present invention mainly includes obtaining first performance test data of concrete to be tested, judging whether the current concrete is qualified in preliminary testing by using the first performance test data and standard first performance test data, and if the preliminary testing is unqualified, outputting the center coordinates of the second sampling area through a first selection model according to the first performance test data and the center coordinates. The method provided by the present invention combines the first or second performance test data, provides a reference basis when the second sampling area is reselected when the concrete to be tested is unqualified, and corrects the selection of the second sampling area instead of re-randomly selecting. Through the correction of the first or second performance test data, the data detected by the reselected sampling area can better reflect the current concrete situation.

Description

Technical Field

[0001] The present invention relates to the technical field of material detection, and in particular to a method and system for detecting performance of building materials. Background Art

[0002] Concrete testing is an important part of ensuring the safety and durability of building structures. The main test items include strength, density, impermeability and crack resistance. Strength testing is usually carried out through compression testing, using standard test pieces to apply pressure in a testing machine to evaluate the bearing capacity of concrete during use. Secondly, density testing can be achieved through weighing to understand the physical properties of concrete.

[0003] The detection methods in the prior art include on-site testing and laboratory testing. Through these means, the quality problems of concrete can be discovered in time to ensure the safety and service life of the building. Timely detection and maintenance are important measures to ensure the success of construction projects. When sampling and testing concrete, if unqualified conditions are encountered, other locations of the current concrete will be sampled again to detect whether other locations of the current concrete are also unqualified, so as to obtain more information about the current concrete unqualified and provide a basis for subsequent rectification. However, when conducting secondary sampling and testing, random sampling is still used. The results obtained by such a selection method may have large errors and cannot provide more accurate information for subsequent rectification. Summary of the invention

[0004] The purpose of the present invention is to provide a method and system for detecting properties of building materials to solve the problems existing in the above-mentioned prior art.

[0005] The present invention is achieved through the following technical solutions:

[0006] In a first aspect, the present invention provides a method for testing the performance of building materials, comprising:

[0007] Divide the target concrete in the current building material to extract a first sampling area, and obtain the concrete to be tested for performance testing through the first sampling area;

[0008] Obtaining first performance test data of the concrete to be tested and standard first performance test data of qualified concrete, and judging whether the current concrete is qualified in preliminary testing by using the first performance test data and the standard first performance test data;

[0009] If the preliminary test is qualified, the second performance test data of the concrete to be tested and the standard second performance test data of the qualified concrete are obtained; if the preliminary test is unqualified, a plane coordinate system is established with the building material, the center coordinates of the first sampling area are obtained, a first selection model is established, and the center coordinates of the second sampling area are output through the first selection model according to the first performance test data and the center coordinates, so as to obtain the second sampling area;

[0010] Judging whether the current concrete is qualified in preliminary testing by using the second performance test data and the standard second performance test data;

[0011] If the preliminary test is qualified, a concrete evaluation model is established, the first performance test data and the second performance test data are obtained, an evaluation value is output through the concrete evaluation model, and an evaluation value threshold is output by setting a threshold model, and the result of the secondary test is output through the evaluation value and the evaluation value threshold;

[0012] If the preliminary test fails or the secondary test result is unqualified, a second selection model is established. The center coordinates of the second sampling area are output through the second selection model according to the first performance test data, the second performance test data and the center coordinates of the first sampling area to obtain the second sampling area.

[0013] Preferably, said dividing the target concrete in the current building material to extract the first sampling area comprises:

[0014] Obtain a basic image of the target concrete, perform feature extraction on the basic image, and obtain a frame image of the concrete;

[0015] A rectangular coordinate system is established with the lower left corner of the frame image as the origin, basic data of the frame image is obtained, an initial sampling model is established, and selected data of the first sampling area is output based on the initial sampling model through the basic data of the frame image.

[0016] Preferably, the step of outputting the selected data of the first sampling area through the basic data of the frame image based on the initial sampling model comprises:

[0017]

[0018]

[0019]

[0020] In the formula, is the number of the first sampling area, is the height of the border image, is the width of the border image, is the average cost of concrete, is the manufacturing cost of the target concrete, and Respectively The horizontal and vertical coordinates of the first sampling area, is the circular radius of the first sampling area, , .

[0021] Preferably, the first selection model includes:

[0022]

[0023]

[0024] In the formula, and Respectively The horizontal and vertical coordinates of the second sampling area, is the standard water absorption rate of concrete, The water absorption rate of the first performance test data is is the standard moisture content of concrete, is the moisture content of the first performance test data, is the standard density of concrete, For the first performance test data density, To calculate the coefficient, hour, , hour, , hour, .

[0025] Preferably, the concrete evaluation model includes:

[0026]

[0027]

[0028] In the formula, is the evaluation value, is the standard compression strength, The compression strength of the second performance test data, is the standard tensile strength, The compression strength of the second performance test data, is the standard bending bearing capacity, is the bending bearing capacity of the second performance test data, To calculate the weight.

[0029] Preferably, the setting threshold model includes:

[0030]

[0031] in, is the evaluation value threshold.

[0032] Preferably, the second selection model includes:

[0033]

[0034] .

[0035] Preferably, the outputting of the secondary detection result by the evaluation value and the evaluation value threshold comprises:

[0036] It is determined whether the evaluation value is less than the evaluation value threshold. If it is less than the evaluation value threshold, the result of the secondary detection is output as qualified. If it is not less than the evaluation value threshold, the result of the secondary detection is output as unqualified.

[0037] In a second aspect, the present invention provides a building material performance detection system, comprising:

[0038] The first performance detection module is configured to divide the target concrete in the current building material to extract a first sampling area, obtain the concrete to be detected for performance detection through the first sampling area; obtain the first performance test data of the concrete to be detected and the standard first performance test data of qualified concrete, and determine whether the current concrete is preliminarily qualified through the first performance test data and the standard first performance test data;

[0039] The first performance detection judgment module is configured to obtain the second performance test data of the concrete to be detected and the standard second performance test data of the qualified concrete if the preliminary detection is qualified, and to establish a plane coordinate system with the building material to obtain the center coordinates of the first sampling area, establish a first selection model, and output the center coordinates of the second sampling area through the first selection model according to the first performance test data and the center coordinates to obtain the second sampling area if the preliminary detection is unqualified;

[0040] A second performance detection module is configured to determine whether the current concrete is preliminarily qualified through the second performance test data and the standard second performance test data;

[0041] The second performance detection judgment module is configured to establish a concrete evaluation model if the preliminary detection is qualified, obtain the first performance test data and the second performance test data, output the evaluation value through the concrete evaluation model, and output the evaluation value threshold by setting the threshold model, and output the result of the secondary detection through the evaluation value and the evaluation value threshold; if the preliminary detection is unqualified or the secondary detection result is unqualified, establish a second selection model, output the center coordinates of the second sampling area through the second selection model according to the first performance test data, the second performance test data and the center coordinates of the first sampling area, and obtain the second sampling area;

[0042] The main control device is connected with the first performance detection module, the first performance detection judgment module, the second performance detection module and the second performance detection judgment module, and is used to execute the above-mentioned building material performance detection method.

[0043] The technical solution of the embodiment of the present invention has at least the following advantages and beneficial effects:

[0044] The method provided by the present invention mainly includes obtaining the first performance test data of the concrete to be tested, judging whether the current concrete is qualified in the preliminary test through the first performance test data and the standard first performance test data, and if the preliminary test is unqualified, outputting the center coordinates of the second sampling area through the first selection model according to the first performance test data and the center coordinates, and obtaining the second sampling area, and if qualified, performing the second performance test, and or related data. The method provided by the present invention combines the first or second performance test data, and after failing, reselects the reference basis provided by the second sampling area, and corrects the selection of the second sampling area, rather than re-randomly selecting, and through the correction of the first or second performance test data, the data detected by the reselected sampling area can better reflect the current concrete situation, thereby making the test result more accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0046] Figure 1 It is a schematic diagram of the process of the present invention. DETAILED DESCRIPTION

[0047] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0048] The terms "first, second" and the like in the specification and claims of this application and the above drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. The naming or numbering of steps in this application does not mean that the steps in the method flow must be executed in the time / logical sequence indicated by the naming or numbering. The named or numbered process steps can be changed in the execution order according to the technical purpose to be achieved, as long as the same or similar technical effects can be achieved.

[0049] The modules or submodules described independently may be physically separated or not: they may be implemented by software or hardware, and some modules or submodules may be implemented by software, and the processor may call the software to implement the functions of these modules or submodules, and other modules or submodules may be implemented by hardware, such as by hardware circuits. In addition, some or all of the modules may be selected according to actual needs to achieve the purpose of the present application.

[0050] Please refer to Figure 1 The present invention provides a method for detecting properties of building materials, comprising:

[0051] S101: Divide the target concrete in the current building material to extract a first sampling area, and obtain the concrete to be tested for performance testing through the first sampling area;

[0052] Among building materials, the main construction material is concrete. This solution carries out detection on concrete. In the target concrete, it is necessary to preliminarily select the sampling area and carry out relevant detection. In the present invention, the first performance detection and the second performance detection are mainly carried out, among which the first new energy detection is the physical performance detection, and the second performance detection is the mechanical performance detection. It should be noted that this embodiment only uses two performance detections as a reference. In actual applications, several other performance tests can be added as an extension and development of this embodiment, so the invention is not limited to the two performance detections provided.

[0053] S102: Acquire first performance test data of the concrete to be tested and standard first performance test data of qualified concrete, and determine whether the current concrete is qualified through the first performance test data and the standard first performance test data;

[0054] The standard first performance test data and the standard second performance test data can be obtained through information from the prior art, or can be used as a reference through performance test data of qualified concrete.

[0055] S103: If the preliminary test is qualified, the second performance test data of the concrete to be tested and the standard second performance test data of the qualified concrete are obtained; if the preliminary test is unqualified, a plane coordinate system is established with the building material, the center coordinates of the first sampling area are obtained, a first selection model is established, and the center coordinates of the second sampling area are output through the first selection model according to the first performance test data and the center coordinates, so as to obtain the second sampling area;

[0056] The building material therein can be understood as the target concrete, wherein the second performance test data is tested when the first performance test data is qualified. Through the first selection model, the original center coordinates of the first sampling area are corrected to obtain the second sampling area that needs to be sampled for the second time. In this way, the second sampling area has a stronger connection with the first sampling area, making the data detected by the second sampling area more accurate.

[0057] Among them, the second sampling area can carry out the same performance test. Since the test may still fail, the third sampling area, the fourth sampling area, etc. may appear to make the test results more accurate and provide a better basis for subsequent rectification.

[0058] S104: judging whether the current concrete is qualified in preliminary testing by using the second performance test data and the standard second performance test data;

[0059] S105: If the preliminary test is qualified, a concrete evaluation model is established, the first performance test data and the second performance test data are obtained, an evaluation value is output through the concrete evaluation model, and an evaluation value threshold is output through a threshold model, and a secondary test result is output through the evaluation value and the evaluation value threshold;

[0060] S106: If the preliminary test fails or the secondary test result is unqualified, a second selection model is established, and the center coordinates of the second sampling area are output through the second selection model according to the first performance test data, the second performance test data and the center coordinates of the first sampling area to obtain the second sampling area.

[0061] Among them, since the second selection model has undergone two rounds of performance testing, it combines the results of the two performance tests. This further improves the final test results compared to the results of only one performance test.

[0062] The method provided by this embodiment mainly includes obtaining the first performance test data of the concrete to be tested, judging whether the current concrete has passed the preliminary test through the first performance test data and the standard first performance test data, and if the preliminary test fails, outputting the center coordinates of the second sampling area through the first selection model according to the first performance test data and the center coordinates to obtain the second sampling area, and if it passes, performing the second performance test, and / or related data. The method provided by the present invention combines the first or second performance test data, and after failing, reselects the second sampling area based on the reference basis provided, and corrects the selection of the second sampling area, rather than re-randomly selecting. Through the correction of the first or second performance test data, the data detected by the reselected sampling area can better reflect the current situation of the concrete, thereby making the test results more accurate.

[0063] In an exemplary embodiment of the present invention, dividing the target concrete in the current building material as the first sampling area includes:

[0064] Obtain a basic image of the target concrete, perform feature extraction on the basic image, and obtain a frame image of the concrete;

[0065] A rectangular coordinate system is established with the lower left corner of the frame image as the origin, basic data of the frame image is obtained, an initial sampling model is established, and selected data of the first sampling area is output based on the initial sampling model through the basic data of the frame image.

[0066] Specifically, the outputting the selected data of the first sampling area based on the initial sampling model through the basic data of the frame image includes:

[0067]

[0068]

[0069]

[0070] In the formula, is the number of the first sampling area, is the height of the border image, is the width of the border image, is the average cost of concrete, is the manufacturing cost of the target concrete, and Respectively The horizontal and vertical coordinates of the first sampling area, is the circular radius of the first sampling area, , .

[0071] In this embodiment, when making a preliminary selection of the first sampling area, the cost factor of concrete is taken into consideration to correct the final number of selections, so that the selected number of tests is more reasonable, avoiding selecting too many first sampling areas, resulting in a waste of testing resources, and also avoiding selecting too few first sampling areas, resulting in inaccurate test results.

[0072] In an exemplary embodiment of the present invention, the first selection model includes:

[0073]

[0074]

[0075] In the formula, and Respectively The horizontal and vertical coordinates of the second sampling area, is the standard water absorption rate of concrete, The water absorption rate of the first performance test data is is the standard moisture content of concrete, is the moisture content of the first performance test data, is the standard density of concrete, For the first performance test data density, To calculate the coefficient, hour, , hour, , hour, .

[0076] In this example, since the first sampling area is sampled in an inclined direction, the second sampling area is selected to change the horizontal coordinate while the vertical coordinate remains unchanged. Specifically, all the first sampling areas are moved horizontally. Of course, the vertical coordinate can also be changed while the horizontal coordinate remains unchanged. Both are extensions of this embodiment. In this way, even if the sampling areas change regularly, the current sampling area is closely adjacent to the previous sampling area, so that the detection result of the current sampling area is more accurate.

[0077] It should be noted that the first sampling area or the second sampling area obtained may be an incomplete circle when it is at the boundary, which does not affect the subsequent detection of this solution.

[0078] In an exemplary embodiment of the present invention, the concrete evaluation model comprises:

[0079]

[0080]

[0081] In the formula, is the evaluation value, is the standard compression strength, The compression strength of the second performance test data, is the standard tensile strength, The compression strength of the second performance test data, is the standard bending bearing capacity, is the bending bearing capacity of the second performance test data, To calculate the weight.

[0082] Among them, the calculation weight only uses the specific value under the same unit, and the final value obtained is also the specific value, without considering the calculation of the specific unit.

[0083] In this embodiment, taking into account that the two performance tests are interrelated, if both are tested separately and pass, they may fail when combined together. Therefore, this embodiment also comprehensively considers the combination of the two performance tests, makes a comprehensive judgment, and minimizes the test errors.

[0084] Specifically, setting the threshold model includes:

[0085]

[0086] in, is the evaluation value threshold.

[0087] In an exemplary embodiment of the present invention, the second selection model includes:

[0088]

[0089] .

[0090] In an exemplary embodiment of the present invention, outputting the result of the secondary detection by using the evaluation value and the evaluation value threshold comprises:

[0091] It is determined whether the evaluation value is less than the evaluation value threshold. If it is less than the evaluation value threshold, the result of the secondary detection is output as qualified. If it is not less than the evaluation value threshold, the result of the secondary detection is output as unqualified.

[0092] In a second aspect, the present invention provides a building material performance detection system, comprising:

[0093] The first performance detection module is configured to divide the target concrete in the current building material to extract a first sampling area, obtain the concrete to be detected for performance detection through the first sampling area; obtain the first performance test data of the concrete to be detected and the standard first performance test data of qualified concrete, and determine whether the current concrete is preliminarily qualified through the first performance test data and the standard first performance test data;

[0094] The first performance detection judgment module is configured to obtain the second performance test data of the concrete to be detected and the standard second performance test data of the qualified concrete if the preliminary detection is qualified, and to establish a plane coordinate system with the building material to obtain the center coordinates of the first sampling area, establish a first selection model, and output the center coordinates of the second sampling area through the first selection model according to the first performance test data and the center coordinates to obtain the second sampling area if the preliminary detection is unqualified;

[0095] A second performance detection module is configured to determine whether the current concrete is preliminarily qualified through the second performance test data and the standard second performance test data;

[0096] The second performance detection judgment module is configured to establish a concrete evaluation model if the preliminary detection is qualified, obtain the first performance test data and the second performance test data, output the evaluation value through the concrete evaluation model, and output the evaluation value threshold by setting the threshold model, and output the result of the secondary detection through the evaluation value and the evaluation value threshold; if the preliminary detection is unqualified or the secondary detection result is unqualified, establish a second selection model, output the center coordinates of the second sampling area through the second selection model according to the first performance test data, the second performance test data and the center coordinates, and obtain the second sampling area;

[0097] The main control device is connected with the first performance detection module, the first performance detection judgment module, the second performance detection module and the second performance detection judgment module, and is used to execute the above-mentioned building material performance detection method.

[0098] In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0099] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. The computer software product is stored in a storage medium, including a number of instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the methods of various embodiments of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), disk or optical disk and other media that can store program codes.

[0100] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A method for testing the performance of building materials, characterized in that: include: Divide the target concrete in the current building material to extract a first sampling area, and obtain the concrete to be tested for performance testing through the first sampling area; Obtaining first performance test data of the concrete to be tested and standard first performance test data of qualified concrete, and judging whether the first preliminary test of the current concrete is qualified by the first performance test data and the standard first performance test data; If the first preliminary test is qualified, the second performance test data of the concrete to be tested and the standard second performance test data of the qualified concrete are obtained; if the first preliminary test is unqualified, a plane coordinate system is established with the building material, the center coordinates of the first sampling area are obtained, a first selection model is established, and the center coordinates of the second sampling area are output through the first selection model according to the first performance test data and the center coordinates of the first sampling area, so as to obtain the second sampling area; judging whether the second preliminary test of the current concrete is qualified or not by using the second performance test data and the standard second performance test data; If the second preliminary test is qualified, a concrete evaluation model is established, the first performance test data and the second performance test data are obtained, an evaluation value is output through the concrete evaluation model, and an evaluation value threshold is output by setting a threshold model, and a secondary test result is output through the evaluation value and the evaluation value threshold; If the second preliminary test fails or the secondary test result is unqualified, a second selection model is established, and the center coordinates of the second sampling area are output through the second selection model according to the first performance test data, the second performance test data and the center coordinates of the first sampling area to obtain the second sampling area; The step of dividing the target concrete in the current building material and extracting the first sampling area comprises: Obtain a basic image of the target concrete, perform feature extraction on the basic image, and obtain a frame image of the concrete; Establishing a rectangular coordinate system with the lower left corner of the frame image as the origin, acquiring basic data of the frame image, establishing an initial sampling model, and outputting selected data of the first sampling area through the basic data of the frame image based on the initial sampling model; The method of outputting the selected data of the first sampling area through the basic data of the frame image based on the initial sampling model includes: In the formula, is the number of the first sampling area, is the height of the border image, is the width of the border image, is the average cost of concrete, is the manufacturing cost of the target concrete, and Respectively The horizontal and vertical coordinates of the center coordinates of the first sampling area, is the circular radius of the first sampling area, , ; The first selection model includes: In the formula, and Respectively The horizontal and vertical coordinates of the center coordinates of the second sampling area, is the standard water absorption rate of concrete, The water absorption rate of the first performance test data is is the standard moisture content of concrete, is the moisture content of the first performance test data, is the standard density of concrete, For the first performance test data density, To calculate the coefficient, hour, , hour, , hour, ; The concrete evaluation model includes: In the formula, is the evaluation value, is the standard compressive strength, The compression strength of the second performance test data, is the standard tensile strength, The compression strength of the second performance test data, is the standard bending bearing capacity, is the bending bearing capacity of the second performance test data, To calculate the weight; The second selection model includes: 。 2. A method for detecting building material properties according to claim 1, characterized in that ,The threshold setting model includes: in, is the evaluation value threshold.

3. A method for detecting building material properties according to claim 2, characterized in that , the output of the secondary detection result through the evaluation value and the evaluation value threshold includes: It is determined whether the evaluation value is less than the evaluation value threshold. If it is less than the evaluation value threshold, the result of the secondary detection is output as qualified. If it is not less than the evaluation value threshold, the result of the secondary detection is output as unqualified.

4. A building material performance detection system, characterized in that ,include: The first performance detection module is configured to divide the target concrete in the current building material to extract a first sampling area, obtain the concrete to be detected for performance detection through the first sampling area; obtain the first performance test data of the concrete to be detected and the standard first performance test data of qualified concrete, and determine whether the current concrete is preliminarily qualified through the first performance test data and the standard first performance test data; The first performance detection judgment module is configured to obtain the second performance test data of the concrete to be detected and the standard second performance test data of the qualified concrete if the preliminary detection is qualified, and to establish a plane coordinate system with the building material to obtain the center coordinates of the first sampling area, establish a first selection model, and output the center coordinates of the second sampling area through the first selection model according to the first performance test data and the center coordinates to obtain the second sampling area if the preliminary detection is unqualified; A second performance detection module is configured to determine whether the current concrete is preliminarily qualified through the second performance test data and the standard second performance test data; The second performance detection judgment module is configured to establish a concrete evaluation model if the preliminary detection is qualified, obtain the first performance test data and the second performance test data, output the evaluation value through the concrete evaluation model, and output the evaluation value threshold by setting the threshold model, and output the result of the secondary detection through the evaluation value and the evaluation value threshold; if the preliminary detection is unqualified or the secondary detection result is unqualified, establish a second selection model, output the center coordinates of the second sampling area through the second selection model according to the first performance test data, the second performance test data and the center coordinates of the first sampling area, and obtain the second sampling area; A main control device is connected to the first performance detection module, the first performance detection judgment module, the second performance detection module and the second performance detection judgment module, and is used to execute a building material performance detection method according to any one of claims 1 to 3.

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