Stress testing method, system and device

Abstract

The present application discloses a stress testing method, system and device. The method comprises: obtaining pressure data collected by multiple pressure sensors on a pressure testing pad, wherein the pressure testing pad is made of a flexible material; and determining the stress condition of a target object to be tested on the pressure testing pad based on the pressure data. The present application solves the problem of inaccurate stress conditions obtained when performing stress testing on an object to be tested in the related art.

Description

Technical Field

[0001] The present application relates to the technical field of railway engineering testing, and in particular to a stress testing method, system and device. Background Art

[0002] The track structure of the train is in contact with the high-speed operating train, and the roadbed is the most important component of the track structure. It has the following functions: bear the pressure from the sleepers and transfer it evenly to the roadbed surface; provide longitudinal and lateral resistance of the track to maintain the stability of the track; provide track elasticity to mitigate and absorb the impact and vibration of the wheel and rail.

[0003] Therefore, the specifications of the track bed will not only directly affect the railway infrastructure, but also have a significant impact on the safety of subsequent train operations. However, the track bed structure is mainly composed of loose crushed stone ballast or concrete structure. It is not only subject to the load of high-speed trains, but also interacts with the lower foundation. Its mechanical behavior is very complex, especially the ballasted track structure composed of loose crushed stone ballast. Due to the different shapes of ballast and the large differences in combination methods, its load transfer mechanism and mechanical behavior under train loads are more complex.

[0004] Since it is difficult to effectively measure the load transfer law of the track bed in related technologies, the existing design standards mostly use conventional conservative parameters in the track bed design. There is still room for further optimization of the parameters, which will lead to problems such as increased maintenance workload of the track bed. In summary, there is no solution in related technologies on how to develop a track structure track bed load transfer test system to obtain the load transfer law of the track bed in order to improve the technical and economic efficiency of the track structure and enhance the operational safety of trains.

[0005] With respect to the problem in related technologies that inaccurate stress conditions are obtained when performing stress tests on a test object, no effective solution has been proposed so far. Summary of the invention

[0006] The present application provides a stress testing method, system and device to solve the problem in the related art that inaccurate stress conditions are obtained when performing stress testing on a test object.

[0007] According to one aspect of the present application, a stress testing method is provided, which includes: obtaining pressure data collected by multiple pressure sensors on a pressure testing mat, wherein the pressure testing mat is made of a flexible material; and determining the stress condition of a target object to be tested on the pressure testing mat based on the pressure data.

[0008] Furthermore, the stress testing method also includes: acquiring coordinate data of multiple pressure sensors; determining the stress condition of the target object to be tested on the pressure testing pad based on the pressure data includes: determining the stress condition of the target object to be tested based on the pressure data and the coordinate data of multiple pressure sensors.

[0009] Furthermore, determining the stress condition of the target object to be tested based on the pressure data and the coordinate data of multiple pressure sensors includes: determining a three-dimensional space model based on the coordinate data of multiple pressure sensors, wherein the position of each point in the three-dimensional space model is determined by the coordinate data of each pressure sensor; determining a stress distribution model based on the three-dimensional space model and the pressure data, wherein the weight of each point in the stress distribution model is determined by the pressure data collected by the pressure sensor corresponding to the point; and analyzing the stress condition of the target object to be tested based on the stress distribution model.

[0010] Furthermore, the stress testing method also includes: displaying pressure data and / or displaying a stress distribution model through a display device to display the stress condition of the target object to be tested.

[0011] Furthermore, the stress testing method further includes: optimizing parameters of the target object to be tested based on the stress conditions of the target object to be tested, wherein the parameters include at least one of the following: thickness of the target object to be tested and material of the target object to be tested.

[0012] According to another aspect of the present application, a stress testing system is provided. The system includes: a pressure testing pad, wherein the pressure testing pad includes a test pad body, the test pad body is made of a flexible material, and a plurality of pressure sensors are arranged on the test pad body; a data acquisition device, which is connected to the plurality of pressure sensors for receiving pressure data collected by the plurality of pressure sensors; and a data analysis device, which is connected to the data acquisition device for determining the force distribution of the target object to be tested on the pressure testing pad based on the plurality of pressure data and the coordinate data of the plurality of pressure sensors.

[0013] Furthermore, the flexible material is at least a metal wire.

[0014] Furthermore, the plurality of pressure sensors are evenly distributed on the test pad body.

[0015] Furthermore, the stress testing system also includes: a display device connected to the data analysis device, and used to display the stress distribution of the target object to be tested.

[0016] According to another aspect of the present application, a stress testing device is provided. The device includes: a first acquisition unit, used to acquire pressure data collected by multiple pressure sensors on a pressure testing mat, wherein the pressure testing mat is made of a flexible material; and a determination unit, used to determine the stress condition of a target object to be tested on the pressure testing mat based on the pressure data.

[0017] Through this application, the following steps are adopted: obtaining pressure data collected by multiple pressure sensors on a pressure test pad, wherein the pressure test pad is made of a flexible material; determining the force condition of the target object to be tested on the pressure test pad based on the pressure data, thereby solving the problem of inaccurate force conditions obtained when performing force tests on the object to be tested in the related technology. The force conditions of the target object to be tested are tested by multiple pressure sensors arranged on a pressure test pad made of a flexible material, thereby achieving the effect of accurately obtaining the force conditions of the object to be tested when performing force tests on the object to be tested. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings constituting a part of the present application are used to provide a further understanding of the present application. The illustrative embodiments and descriptions of the present application are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0019] Figure 1 is a schematic diagram of a stress testing system provided according to an embodiment of the present application;

[0020] Figure 2 is a schematic diagram of using the stress testing system provided in an embodiment of the present application to test the stress of a target object to be tested;

[0021] Figure 3 is a flowchart of a stress testing method provided according to an embodiment of the present application; and

[0022] Figure 4 is a schematic diagram of a stress testing device provided according to an embodiment of the present application. DETAILED DESCRIPTION

[0023] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0024] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0025] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present application described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0026] According to an embodiment of the present application, a stress testing system is provided.

[0027] Figure 1 Schematic diagram of a stress testing system according to an embodiment of the present application. Figure 1 As shown, the system includes: a pressure test pad, a data acquisition device and a data analysis device.

[0028] Specifically, the pressure test pad includes a test pad body, the test pad body is made of a flexible material, and a plurality of pressure sensors are arranged on the test pad body.

[0029] It should be noted that the test pad body is made of flexible material, and during testing, it has strong tracking ability to the deformation of the target object to be tested on the upper part of the pressure test pad and the lower structure of the pressure test pad, that is, the pressure test pad is set between the structural layers and will not change the original contact state and stress conditions of the upper and lower structures. In addition, multiple pressure sensors are set on the test pad body, and the multiple pressure sensors respectively collect pressure data of various points at different positions on the entire surface of the target object to be tested, so as to obtain the overall stress condition of the target object to be tested, avoiding the problem that the pressure data cannot reflect the overall stress condition due to pressure measurement of only a few points.

[0030] The data acquisition device is connected to the multiple pressure sensors for receiving the pressure data acquired by the multiple pressure sensors.

[0031] Specifically, the data acquisition device obtains the pressure data collected by the pressure sensor and converts the pressure data into a digital signal to facilitate subsequent data transmission and force analysis and calculation of the target object to be tested.

[0032] The data analysis device is connected to the data acquisition device and is used to determine the force distribution of the target object to be tested on the pressure test mat based on the multiple pressure data and the coordinate data of the multiple pressure sensors.

[0033] Specifically, the position of the force point can be located by the coordinate data of the pressure sensor, and the pressure value of the force point can be determined based on the pressure data detected by the pressure sensor, and then the force condition of the target object to be tested can be determined through the positions of multiple force points and the force values ​​of the force points.

[0034] It should be noted that the coordinate data of one pressure sensor can be measured, and the coordinate data of other pressure sensors can be inferred based on the positional arrangement relationship of each pressure sensor on the test pad body. In order to obtain coordinate data more accurately, a positioning component can also be set for each pressure sensor, so that when the deformation of the target object to be tested is large, the deformation of the pressure test pad is large, and the position offset of each pressure sensor is large, pressure data with small errors can be obtained.

[0035] The stress testing system provided in the embodiment of the present application is through a pressure testing pad, wherein the pressure testing pad includes a test pad body, the test pad body is made of a flexible material, and a plurality of pressure sensors are arranged on the test pad body; a data acquisition device is communicatively connected to the plurality of pressure sensors and is used to receive pressure data collected by the plurality of pressure sensors; a data analysis device is connected to the data acquisition device and is used to determine the force distribution of the target object to be tested on the pressure testing pad based on the plurality of pressure data and the coordinate data of the plurality of pressure sensors, thereby solving the problem of inaccurate force conditions obtained when performing a force test on the object to be tested in the related art, and testing the force conditions of the target object to be tested by using a plurality of pressure sensors arranged on the pressure testing pad made of flexible material, thereby achieving the effect of accurately obtaining the force conditions of the object to be tested when performing a force test on the object to be tested.

[0036] Optionally, in the stress testing system provided in the embodiment of the present application, the flexible material is at least a metal wire.

[0037] Specifically, the test pad body can be woven from metal wires, and multiple pressure sensors are arranged on the metal wire mesh. The metal wire mesh can follow the deformation of the target object to be tested without affecting the stress of the target object to be tested. At the same time, the metal wire mesh has certain strength and toughness and is not easily damaged by deformation. It should be noted that in addition to metal wires, the test pad body in this embodiment can also be made of other flexible materials, and the embodiment of the present application does not limit the type of flexible material.

[0038] In order to uniformly acquire pressure data of the target object to be tested, optionally, in the stress testing system provided in the embodiment of the present application, a plurality of pressure sensors are uniformly distributed on the test pad body.

[0039] Specifically, multiple pressure sensors are evenly distributed, so that the force data of the lower plane of the target object to be measured can be evenly obtained, and at the same time, the coordinate position calculation of each pressure sensor is also convenient. Multiple pressure sensors can be evenly distributed so that every two adjacent pressure sensors are set at an equal distance, or the distance between two adjacent rows of pressure sensors is equal, and / or the distance between two adjacent columns of pressure sensors is equal.

[0040] In order to intuitively obtain the force analysis situation, optionally, in the stress testing system provided in the embodiment of the present application, the stress testing system also includes: a display device, connected to the data analysis device, for displaying the force distribution situation of the target object to be tested.

[0041] Specifically, the display device can be a host computer display screen, which can display the coordinate data of each pressure sensor and the corresponding pressure data, and can also display the force distribution diagram obtained after analysis, etc., so that the user can intuitively observe the force condition of the target object to be measured. In addition, when the pressure sensor fails, the data acquisition device fails, or other parts of the system fail, data anomalies such as missing data and sudden changes in data values ​​will be displayed on the display device in a timely manner, which is convenient for the user to locate the fault point and fault condition according to the data anomaly, so as to accurately and promptly repair the faulty part of the system.

[0042] In addition, it should be noted that when using the stress test system to test the stress condition of the target object to be tested, the system should be debugged first. Specifically, the test accuracy of the sensor should be debugged according to the estimated stress condition of the object to be tested, the pressure test pad should be placed, and then the target object to be tested should be placed on the top of the pressure test pad. For example, when the target object to be tested is the track bed of the track structure, the test condition is as follows: Figure 2 As shown, the stress testing system is arranged in the interlayer structure to be tested, and a gravel ballast, sleepers and fasteners are laid on the upper part. When a train or external load acts, the structure can realize real-time testing of the stress transfer and distribution law of the ballast. Specifically, pressure data is collected by a pressure testing pad, and the collected test data is analyzed and processed and displayed in real time by a data analysis device and a display device, so as to obtain the stress distribution of the target object to be tested at each moment, and determine the load transfer test according to the tested stress distribution and the pressure data loaded on the target object to be tested.

[0043] According to an embodiment of the present application, a stress testing method is provided.

[0044] Figure 3 FIG. 1 is a flow chart of a stress testing method according to an embodiment of the present application. Figure 3 As shown, the method comprises the following steps:

[0045] Step S301, obtaining pressure data collected by multiple pressure sensors on a pressure test pad, wherein the pressure test pad is made of a flexible material.

[0046] Specifically, a flexible pressure test pad is laid under the target object to be tested, and a force test is performed on the target object to be tested. Since the test pad body is made of flexible material, it has strong tracking ability for the deformation of the target object to be tested on the upper part of the pressure test pad and the lower structure of the pressure test pad, that is, the pressure test pad is set between the structural layers without changing the original contact state and force conditions of the upper and lower structures. In addition, multiple pressure sensors are set on the test pad body to collect more comprehensive data. Multiple pressure sensors respectively collect pressure data of various points at different positions on the entire surface of the target object to be tested, thereby obtaining the overall force condition of the target object to be tested, avoiding the problem that the pressure data cannot reflect the overall force condition due to pressure measurement of only a few points.

[0047] Step S302: determining the stress condition of the target object to be tested on the pressure test mat based on the pressure data.

[0048] Specifically, a plurality of pressure sensors respectively detect the stress conditions of various points at different positions on the same plane of the target object to be measured, and the stress conditions of the entire target object to be measured can be accurately measured by combining the stress conditions of various points.

[0049] Optionally, in the stress testing method provided in an embodiment of the present application, the stress testing method also includes: obtaining coordinate data of multiple pressure sensors; determining the force condition of the target object to be tested on the pressure testing pad based on the pressure data includes: determining the force condition of the target object to be tested based on the pressure data and the coordinate data of multiple pressure sensors.

[0050] Specifically, the position of the force point can be located by the coordinate data of the pressure sensor, and the pressure value of the force point can be determined based on the pressure data detected by the pressure sensor, and then the force condition of the target object to be tested can be determined through the positions of multiple force points and the force values ​​of the force points.

[0051] It should be noted that the coordinate data of one pressure sensor can be measured, and the coordinate data of other pressure sensors can be inferred based on the positional arrangement relationship of each pressure sensor on the test pad body. In order to obtain coordinate data more accurately, a positioning component can also be set for each pressure sensor, so that when the deformation of the target object to be tested is large, the deformation of the pressure test pad is large, and the position offset of each pressure sensor is large, pressure data with small errors can be obtained.

[0052] In order to vividly express the stress condition of the target object to be tested, optionally, in the stress testing method provided in the embodiment of the present application, determining the stress condition of the target object to be tested based on pressure data and coordinate data of multiple pressure sensors includes: determining a three-dimensional space model based on the coordinate data of multiple pressure sensors, wherein the position of each point in the three-dimensional space model is determined by the coordinate data of each pressure sensor; determining a stress distribution model based on the three-dimensional space model and the pressure data, wherein the weight of each point in the stress distribution model is determined by the pressure data collected by the pressure sensor corresponding to the point; and analyzing the stress condition of the target object to be tested based on the stress distribution model.

[0053] Specifically, in the stress distribution model, pressure data located in different intervals can be represented by points of different colors. For example, points located in the first interval (indicating a large pressure value) are marked in red, points located in the first interval (indicating a moderate pressure value) are marked in yellow, and points located in the first interval (indicating a small pressure value) are marked in green. This makes it easy for users to intuitively understand the overall stress distribution of the target object to be tested through the shape of the stress distribution model and the color of the data points. Specifically, the overall stress distribution includes the size of the stress value and whether the stress distribution is uniform.

[0054] In addition, the load transfer situation of the target object to be tested can also be determined through the pressure data and the coordinate data of multiple pressure sensors. Specifically, the load transfer data of various parts of the target object can be determined based on the stress actually applied to the target object to be tested and the pressure detected by the pressure sensor. A load transfer model can be constructed based on the load transfer data and the coordinate data, so as to analyze the load transfer situation of the target object to be tested based on the load transfer model.

[0055] In order to intuitively obtain the stress analysis situation, optionally, in the stress testing method provided in the embodiment of the present application, the stress testing method also includes: displaying pressure data through a display device, and / or displaying a stress distribution model to display the stress situation of the target object to be tested.

[0056] Specifically, the display device can be a host computer display screen, which can display the coordinate data of each pressure sensor and the corresponding pressure data, and can also display the force distribution diagram obtained after analysis, etc., so that the user can intuitively observe the force condition of the target object to be measured. In addition, when the pressure sensor fails, the data acquisition device fails, or other parts of the system fail, data anomalies such as missing data and sudden changes in data values ​​will be displayed on the display device in a timely manner, which is convenient for the user to locate the fault point and fault condition according to the data anomaly, so as to accurately and promptly repair the faulty part of the system.

[0057] Optionally, in the stress testing method provided in the embodiment of the present application, the stress testing method further includes: optimizing parameters of the target object to be tested based on the stress conditions of the target object to be tested, wherein the parameters include at least one of the following: the thickness of the target object to be tested and the material of the target object to be tested.

[0058] It should be noted that when the actual stress condition of the target object to be tested is not obtained, conservative parameters will be set for the target object to be tested based on the estimated stress condition, and the set parameters have a larger margin than the actual required parameter values. Specifically, if a thickness of 5CM is set for the target object to be tested, the actual requirements can be met. However, when the actual stress of the target object to be tested is not tested, a thickness of 10CM will be set to ensure that the target test object can meet the stress requirements during operation. In the embodiment of the present application, the stress analysis of the target object to be tested is obtained. When the stress distribution is uniform, the parameters of the target object to be tested can be determined according to the mean of the pressure data. When the stress distribution is uneven, the parameters of the target object to be tested can be determined according to the maximum value in the pressure data, thereby reducing consumables. In addition, since the thickness and material of the target object to be tested affect the stress condition, and the thickness and material have preset parameter setting requirements in the industry, the parameters of the target object to be tested are optimized based on the stress condition of the target object to be tested obtained by the test and the preset parameter setting requirements.

[0059] The stress testing method provided in the embodiment of the present application obtains pressure data collected by multiple pressure sensors on a pressure testing pad, wherein the pressure testing pad is made of a flexible material; based on the pressure data, the stress condition of the target object to be tested on the pressure testing pad is determined, thereby solving the problem of inaccurate stress conditions obtained when performing stress tests on the object to be tested in the related art. The stress conditions of the target object to be tested are tested by multiple pressure sensors arranged on a pressure testing pad made of a flexible material, thereby achieving the effect of accurately obtaining the stress conditions of the object to be tested when performing stress tests.

[0060] It should be noted that the steps shown in the flowcharts of the accompanying drawings can be executed in a computer system such as a set of computer executable instructions, and that, although a logical order is shown in the flowcharts, in some cases, the steps shown or described can be executed in an order different from that shown here.

[0061] The embodiment of the present application also provides a stress testing device. It should be noted that the stress testing device of the embodiment of the present application can be used to execute the stress testing method provided in the embodiment of the present application. The stress testing device provided in the embodiment of the present application is introduced below.

[0062] Figure 4 Schematic diagram of a stress testing device according to an embodiment of the present application. Figure 4As shown, the device includes: a first acquiring unit 41 and a determining unit 42.

[0063] Specifically, the first acquisition unit 41 is used to acquire pressure data collected by multiple pressure sensors on the pressure test mat, wherein the pressure test mat is made of a flexible material.

[0064] The determination unit 42 is used to determine the stress condition of the target object to be tested on the pressure test mat based on the pressure data.

[0065] Optionally, in the stress testing device provided in the embodiment of the present application, the stress testing device also includes: a second acquisition unit, used to acquire coordinate data of multiple pressure sensors; the determination unit 42 includes: a determination module, used to determine the force condition of the target object to be tested based on the pressure data and the coordinate data of multiple pressure sensors.

[0066] Optionally, in the stress testing device provided in the embodiment of the present application, the determination module includes: a first determination submodule, used to determine the three-dimensional space model based on the coordinate data of multiple pressure sensors, wherein the position of each point in the three-dimensional space model is determined by the coordinate data of each pressure sensor; a second determination submodule, used to determine the stress distribution model based on the three-dimensional space model and the pressure data, wherein the weight of each point in the stress distribution model is determined by the pressure data collected by the pressure sensor corresponding to the point; and an analysis submodule, used to analyze the stress condition of the target object to be tested based on the stress distribution model.

[0067] Optionally, in the stress testing device provided in the embodiment of the present application, the stress testing device further includes: a display unit, used to display pressure data and / or display a stress distribution model through a display device to display the stress condition of the target object to be tested.

[0068] Optionally, in the stress testing device provided in the embodiment of the present application, the stress testing device also includes: an optimization unit, used to optimize the parameters of the target object to be tested based on the stress conditions of the target object to be tested, wherein the parameters include at least one of the following: the thickness of the target object to be tested and the material of the target object to be tested.

[0069] The stress testing device provided in the embodiment of the present application obtains pressure data collected by multiple pressure sensors on a pressure testing pad through a first acquisition unit 41, wherein the pressure testing pad is made of a flexible material; the determination unit 42 determines the stress condition of the target object to be tested on the pressure testing pad based on the pressure data, thereby solving the problem of inaccurate stress conditions obtained when performing stress tests on the object to be tested in the related art. The stress conditions of the target object to be tested are tested by using multiple pressure sensors arranged on the pressure testing pad made of flexible material, thereby achieving the effect of accurately obtaining the stress conditions of the object to be tested when performing stress tests on the object to be tested.

[0070] The stress testing device includes a processor and a memory. The first acquisition unit 41 and the determination unit 42 are stored in the memory as program units. The processor executes the program units stored in the memory to implement corresponding functions.

[0071] The processor includes a kernel, which retrieves the corresponding program unit from the memory. One or more kernels can be set, and the problem of inaccurate stress conditions obtained when performing stress tests on the test object in the related art can be solved by adjusting kernel parameters.

[0072] The memory may include non-permanent memory in a computer-readable medium, random access memory (RAM) and / or non-volatile memory, such as read-only memory (ROM) or flash RAM, and the memory includes at least one memory chip.

[0073] An embodiment of the present invention provides a storage medium on which a program is stored. When the program is executed by a processor, the stress testing method is implemented.

[0074] An embodiment of the present invention provides a processor, which is used to run a program, wherein the stress testing method is executed when the program is running.

[0075] An embodiment of the present invention provides a device, which includes a processor, a memory, and a program stored in the memory and executable on the processor. When the processor executes the program, the following steps are implemented: obtaining pressure data collected by multiple pressure sensors on a pressure test pad, wherein the pressure test pad is made of a flexible material; and determining the stress condition of a target object to be tested on the pressure test pad based on the pressure data.

[0076] The stress testing method also includes: acquiring coordinate data of multiple pressure sensors; determining the stress condition of the target object to be tested on the pressure testing pad based on the pressure data includes: determining the stress condition of the target object to be tested based on the pressure data and the coordinate data of the multiple pressure sensors.

[0077] Determining the stress condition of the target object to be tested based on pressure data and coordinate data of multiple pressure sensors includes: determining a three-dimensional space model based on the coordinate data of multiple pressure sensors, wherein the position of each point in the three-dimensional space model is determined by the coordinate data of each pressure sensor; determining a stress distribution model based on the three-dimensional space model and the pressure data, wherein the weight of each point in the stress distribution model is determined by the pressure data collected by the pressure sensor corresponding to the point; and analyzing the stress condition of the target object to be tested based on the stress distribution model.

[0078] The stress testing method further includes: displaying pressure data and / or displaying a stress distribution model through a display device to display the stress condition of the target object to be tested.

[0079] The stress testing method further includes: optimizing the parameters of the target object to be tested based on the stress condition of the target object to be tested, wherein the parameters include at least one of the following: the thickness of the target object to be tested and the material of the target object to be tested. The device in this article can be a server, a PC, a PAD, a mobile phone, etc.

[0080] The present application also provides a computer program product, which, when executed on a data processing device, is suitable for executing an initialization program having the following method steps: obtaining pressure data collected by multiple pressure sensors on a pressure test pad, wherein the pressure test pad is made of a flexible material; and determining the force condition of a target object to be tested on the pressure test pad based on the pressure data.

[0081] The stress testing method also includes: acquiring coordinate data of multiple pressure sensors; determining the stress condition of the target object to be tested on the pressure testing pad based on the pressure data includes: determining the stress condition of the target object to be tested based on the pressure data and the coordinate data of the multiple pressure sensors.

[0082] Determining the stress condition of the target object to be tested based on pressure data and coordinate data of multiple pressure sensors includes: determining a three-dimensional space model based on the coordinate data of multiple pressure sensors, wherein the position of each point in the three-dimensional space model is determined by the coordinate data of each pressure sensor; determining a stress distribution model based on the three-dimensional space model and the pressure data, wherein the weight of each point in the stress distribution model is determined by the pressure data collected by the pressure sensor corresponding to the point; and analyzing the stress condition of the target object to be tested based on the stress distribution model.

[0083] The stress testing method further includes: displaying pressure data and / or displaying a stress distribution model through a display device to display the stress condition of the target object to be tested.

[0084] The stress testing method further includes: optimizing parameters of the target object to be tested based on the stress conditions of the target object to be tested, wherein the parameters include at least one of the following: thickness of the target object to be tested and material of the target object to be tested.

[0085] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems, or computer program products. Therefore, the present application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment in combination with software and hardware. Moreover, the present application may adopt the form of a computer program product implemented in one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) that include computer-usable program code.

[0086] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0087] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0088] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0089] In a typical configuration, a computing device includes one or more processors (CPU), input / output interfaces, network interfaces, and memory.

[0090] The memory may include non-permanent memory in a computer-readable medium, random access memory (RAM) and / or non-volatile memory in the form of read-only memory (ROM) or flash RAM. The memory is an example of a computer-readable medium.

[0091] Computer readable media include permanent and non-permanent, removable and non-removable media that can be implemented by any method or technology to store information. Information can be computer readable instructions, data structures, program modules or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technology, compact disk read-only memory (CD-ROM), digital versatile disk (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices or any other non-transmission media that can be used to store information that can be accessed by a computing device. As defined herein, computer readable media does not include temporary computer readable media (transitory media), such as modulated data signals and carrier waves.

[0092] It should also be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, commodity or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, commodity or device. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the process, method, commodity or device including the elements.

[0093] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems or computer program products. Therefore, the present application may adopt the form of a complete hardware embodiment, a complete software embodiment or an embodiment in combination with software and hardware. Moreover, the present application may adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) that contain computer-usable program code.

[0094] The above are only embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included within the scope of the claims of the present application.

Claims

1. A stress testing method, characterized in that: include: Acquiring pressure data collected by a plurality of pressure sensors on a pressure test pad, wherein the pressure test pad is made of a flexible material; Determining the force condition of the target object to be tested on the pressure test mat based on the pressure data includes: acquiring coordinate data of the multiple pressure sensors, wherein the coordinate data of one pressure sensor is measured, and the coordinate data of other pressure sensors are inferred according to the position arrangement relationship of each pressure sensor on the test mat body, wherein the target object to be tested is a track bed of a track structure; The stress testing method further includes: optimizing parameters of the target object to be tested based on the stress condition of the target object to be tested, wherein the parameters include at least one of the following: the thickness of the target object to be tested and the material of the target object to be tested; Determining the force condition of the target object to be tested on the pressure test pad based on the pressure data includes: determining the force condition of the target object to be tested based on the pressure data and the coordinate data of the plurality of pressure sensors; Determining the stress condition of the target object to be tested based on the pressure data and the coordinate data of the multiple pressure sensors includes: determining a three-dimensional space model based on the coordinate data of the multiple pressure sensors, wherein the position of each point in the three-dimensional space model is determined by the coordinate data of each pressure sensor; determining a stress distribution model based on the three-dimensional space model and the pressure data, wherein the weight of each point in the stress distribution model is determined by the pressure data collected by the pressure sensor corresponding to the point; and analyzing the stress condition of the target object to be tested based on the stress distribution model.

2. The method according to claim 1, characterized in that: The stress testing method further comprises: The pressure data and / or the stress distribution model are displayed via a display device to display the stress condition of the target object to be tested.

3. A stress testing system, characterized in that: include: A pressure test pad, wherein the pressure test pad comprises a test pad body, the test pad body is made of a flexible material, and a plurality of pressure sensors are arranged on the test pad body; a data acquisition device, connected in communication with the plurality of pressure sensors, and configured to receive pressure data acquired by the plurality of pressure sensors; A data analysis device, connected to the data acquisition device, for determining the force distribution of the target object to be tested on the pressure test pad based on the plurality of pressure data and the coordinate data of the plurality of pressure sensors, comprising: obtaining the coordinate data of the plurality of pressure sensors, wherein the coordinate data of one pressure sensor is measured, and the coordinate data of other pressure sensors are deduced according to the position arrangement relationship of each pressure sensor on the test pad body, and the parameters of the target object to be tested are optimized based on the force condition of the target object to be tested, wherein the parameters include at least one of the following: the thickness of the target object to be tested and the material of the target object to be tested, wherein the target object to be tested is a track bed of a track structure; Determining the force condition of the target object to be tested on the pressure test pad based on the pressure data includes: determining the force condition of the target object to be tested based on the pressure data and the coordinate data of the plurality of pressure sensors; Determining the stress condition of the target object to be tested based on the pressure data and the coordinate data of the multiple pressure sensors includes: determining a three-dimensional space model based on the coordinate data of the multiple pressure sensors, wherein the position of each point in the three-dimensional space model is determined by the coordinate data of each pressure sensor; determining a stress distribution model based on the three-dimensional space model and the pressure data, wherein the weight of each point in the stress distribution model is determined by the pressure data collected by the pressure sensor corresponding to the point; and analyzing the stress condition of the target object to be tested based on the stress distribution model.

4. The system according to claim 3, characterized in that The flexible material is at least a metal wire.

5. The system according to claim 3, characterized in that The plurality of pressure sensors are evenly distributed on the test pad body.

6. The system according to claim 3, characterized in that The system further comprises: a display device connected to the data analysis device and used for displaying the force distribution of the target object to be tested.

7. A stress testing device, characterized in that: include: A first acquisition unit, used to acquire pressure data collected by a plurality of pressure sensors on a pressure test pad, wherein the pressure test pad is made of a flexible material; A determination unit, for determining the force condition of the target object to be tested on the pressure test mat based on the pressure data, comprising: acquiring coordinate data of the multiple pressure sensors, wherein the coordinate data of one pressure sensor is measured, and the coordinate data of other pressure sensors are calculated according to the position arrangement relationship of each pressure sensor on the test mat body, wherein the target object to be tested is a track bed of a track structure; An optimization unit, configured to optimize parameters of the target object to be tested based on the stress condition of the target object to be tested, wherein the parameters include at least one of the following: a thickness of the target object to be tested and a material of the target object to be tested; The determination unit includes: a determination module, configured to determine the force condition of the target object to be tested based on the pressure data and the coordinate data of the plurality of pressure sensors; The determination module includes: a first determination submodule, used to determine a three-dimensional space model based on the coordinate data of the multiple pressure sensors, wherein the position of each point in the three-dimensional space model is determined by the coordinate data of each pressure sensor; a second determination submodule, used to determine a stress distribution model based on the three-dimensional space model and the pressure data, wherein the weight of each point in the stress distribution model is determined by the pressure data collected by the pressure sensor corresponding to the point; and an analysis submodule, used to analyze the stress condition of the target object to be tested based on the stress distribution model.

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