Instrument board surface hardness testing system, method and device and electronic equipment

Abstract

The invention discloses an instrument panel surface hardness testing system, method and device and electronic equipment. The system comprises a pressure head module, a pressure module, a positioning module, a pressure control module, a displacement measurement module and a rack module, the pressure head module is used for contacting the surface of the instrument panel; the pressure module is used for driving the pressure head module to apply pressure on the surface of the instrument panel; the positioning module is used for positioning a point position for applying pressure to the surface of the instrument panel and the direction of the pressure applied to the surface of the instrument panel; the pressure control module is used for controlling a curve that the pressure module drives the pressure head module to apply pressure on the surface of the instrument panel; the displacement measurement module is used for measuring the surface deformation state of the instrument panel in the process of applying pressure to the surface of the instrument panel; the rack module is used for controlling the tested posture of the instrument board sample; the pressure head module, the pressure module, the positioning module, the pressure control module and the displacement measurement module are used for controlling the tested posture setting of the instrument panel sample relative to the rack module.

Description

Technical Field

[0001] The present application relates to the field of hardness testing, and in particular to a dashboard surface hardness testing system, a dashboard surface hardness testing method, a dashboard surface hardness testing device, an electronic device, a storage medium and a testing platform. Background Art

[0002] According to the processing technology, automobile soft instrument panels can be mainly divided into slush-molded instrument panels, vacuum-formed instrument panels, and 3D-mesh coated instrument panels.

[0003] Traditional processes mostly use thermoforming instrument panels and vacuum forming instrument panels. Compared with thermoforming instrument panels and vacuum forming instrument panels, 3D-mesh instrument panels have better resilience and touch. As OEMs continue to pursue higher quality in interior decoration, more and more 3D-mesh instrument panel wrapping processes are used.

[0004] Usually, the surface thickness of the slush-molded instrument panel is 0.8-1.2mm, and the thickness of the foaming layer is 6-10mm. The indentation can be measured using a Shore A hardness tester in accordance with standard GB / T 2411 to obtain hardness data. However, the 3D-mesh instrument panel body is composed of the surface, 3D-mesh softening layer and instrument panel skeleton. Usually, the surface thickness is 1-1.2mm, and the thickness of the 3D-mesh mesh layer is about 3mm, forming an overall thickness of less than 6mm. The Shore A hardness tester requires that the thickness of the test block to be measured should not be less than 6mm. The solution of using a Shore A hardness tester based on standard GB / T2411 to measure the indentation and obtain hardness data is not suitable for measuring 3D-mesh covered instrument panels.

[0005] Therefore, a solution for testing the surface hardness of an instrument panel is needed, which is not troubled by the insufficient thickness caused by using the old Shore A hardness tester and is more widely applicable to the testing of the surface hardness of an instrument panel. Summary of the invention

[0006] The purpose of the present invention is to provide a dashboard surface hardness testing system, a dashboard surface hardness testing method, a dashboard surface hardness testing device, an electronic device, a storage medium and a testing platform, at least to solve the problem that 3D-mesh dashboards are not suitable for measuring their indentations using a Shore A hardness tester based on standard GB / T 2411 to obtain hardness data, and to solve a technical problem in the problem of more extensive application of dashboard surface hardness testing.

[0007] The present invention provides the following scheme:

[0008] According to one aspect of the present invention, there is provided a dashboard surface hardness testing system, the dashboard surface hardness testing system comprising: a pressure head module, a pressure module, a positioning module, a pressure control module, a displacement measurement module and a bench module;

[0009] The indenter module is used to contact the surface of the instrument panel;

[0010] The pressure module is used to drive the indenter module to apply pressure on the surface of the instrument panel;

[0011] The positioning module is used to position the point where pressure is applied on the surface of the instrument panel and the direction of the pressure applied on the surface of the instrument panel;

[0012] The pressure control module is used to control the curve of the pressure module driving the indenter module to apply pressure on the surface of the instrument panel;

[0013] The displacement measurement module is used to measure the deformation state of the surface of the instrument panel during the process of applying pressure on the surface of the instrument panel;

[0014] The bench module is used to control the measured attitude of the instrument panel sample;

[0015] The indenter module, the pressure module, the positioning module, the pressure control module and the displacement measurement module are arranged relative to the bench module to control the measured attitude of the instrument panel sample.

[0016] According to a second aspect of the present invention, there is provided a method for testing the surface hardness of an instrument panel, and the method for testing the surface hardness of the instrument panel includes:

[0017] Set the area to be tested on the surface of the instrument panel;

[0018] Select test points in the area to be tested;

[0019] Corresponding to the test points, sample the sample data in the initial state;

[0020] The sample data in the initial state includes the data of the deformation state of the surface of the instrument panel and the data of the pressure applied on the surface of the instrument panel being zero;

[0021] Corresponding to the test points, control the indenter module to apply pressure on the surface of the instrument panel and sample the sample data in the non-initial state;

[0022] The sample data in the non-initial state includes the data of the pressure applied on the surface of the instrument panel not being zero and the data of the deformation state of the surface of the instrument panel corresponding to the data of the pressure applied on the surface of the instrument panel not being zero;

[0023] Generate sample comparison data according to the sample data in the initial state and the sample data in the non-initial state;

[0024] Generate curve data for testing the surface hardness of the instrument panel according to the sample comparison data.

[0025] Furthermore, generating data of the instrument panel surface hardness test according to the sample comparison data includes:

[0026] Obtain the dashboard surface hardness standard database;

[0027] The dashboard surface hardness standard database includes standard data of dashboard surface deformation state corresponding to the dashboard surface hardness, and standard data of dashboard surface pressure applied corresponding to the standard data of dashboard surface deformation state;

[0028] Obtain the required indicator data of the surface hardness of the instrument panel;

[0029] Corresponding to the demand index data of the instrument panel surface hardness, querying the instrument panel surface hardness standard database, extracting the standard data of the instrument panel surface deformation state and the standard data of the pressure applied to the instrument panel surface corresponding to the demand index data of the instrument panel surface hardness;

[0030] Standard curve data for the instrument panel surface hardness test is generated based on the standard data of the instrument panel surface deformation state and the standard data of the pressure applied to the instrument panel surface extracted corresponding to the demand index data of the instrument panel surface hardness.

[0031] Furthermore, the curve data includes:

[0032] Acquire data of preset applied pressure;

[0033] Based on the test point, according to preset pressure application data, pressure is applied to the surface of the instrument panel to change the deformation state of the surface of the instrument panel;

[0034] Generate curve data corresponding to the applied pressure and the deformation state change according to the applied pressure on the instrument panel surface and the deformation state change of the instrument panel surface;

[0035] Also included is that the standard curve data for the instrument panel surface hardness test includes upper limit standard curve data and lower limit standard curve data;

[0036] Generate a curve graph according to the upper limit standard curve data and the lower limit standard curve data, including a curve threshold interval graph with the upper limit standard curve and the lower limit standard curve as boundaries;

[0037] According to the sample comparison data, obtaining a curve graph corresponding to the sample comparison data;

[0038] According to the curve graph corresponding to the sample comparison data and the curve threshold interval graph, judging whether the surface hardness of the instrument panel meets the current requirement index of the surface hardness of the instrument panel;

[0039] If the curve corresponding to the sample comparison data is mapped within the curve threshold interval, the hardness of the test point corresponding to the sample comparison data is qualified;

[0040] If the curve corresponding to the sample comparison data is mapped outside the curve threshold range, the hardness of the test point corresponding to the sample comparison data is unqualified.

[0041] Furthermore, the instrument panel surface hardness standard database further includes: standard data of the maximum spacing of test points selected in the area to be tested;

[0042] Selecting spacing data of test points in the area to be tested according to standard data of the maximum spacing of test points in the area to be tested;

[0043] Determine whether the hardness of all the test points selected in the area to be tested is qualified;

[0044] If the hardness of all the test points selected in the area to be tested is qualified, then the hardness of the entire surface of the current dashboard is qualified;

[0045] The spacing data of the test points selected in the area to be tested is less than or equal to the standard data of the maximum spacing of the test points selected in the area to be tested.

[0046] Furthermore, the acquisition of the required index data of the instrument panel surface hardness includes:

[0047] Obtaining instrument panel installation data and boundary data of the area to be tested on the instrument panel surface;

[0048] According to the instrument panel installation data and the boundary data of the area to be tested on the surface of the instrument panel, obtaining the demand index curve data of the current instrument panel surface hardness;

[0049] querying the dashboard surface hardness standard database according to the demand index curve data of the current dashboard surface hardness;

[0050] Planning test points in the area to be tested on the surface of the dashboard according to querying the dashboard surface hardness standard database;

[0051] The planning of the test points in the area to be tested on the instrument panel surface includes setting the test point positions, setting the test point spacings, the pressures applied at the test points and the deformation states of the instrument panel surface corresponding to the test points.

[0052] According to three aspects of the present invention, a device for testing the surface hardness of an instrument panel is provided, the device comprising:

[0053] A test area module, used to set a test area on the surface of the dashboard;

[0054] A test point selection module, used for selecting test points in the area to be tested;

[0055] An initial sample data module, used for sampling sample data of an initial state corresponding to the test point;

[0056] The sample data of the initial state includes data of the deformation state of the instrument panel surface and data of zero pressure applied to the instrument panel surface;

[0057] A non-initial sample data module, used to control the pressure head module to apply pressure on the surface of the instrument panel corresponding to the test point, and to sample sample data of a non-initial state;

[0058] The sample data of the non-initial state includes data of the pressure applied to the instrument panel surface being non-zero, and data of the deformation state of the instrument panel surface corresponding to the data of the pressure applied to the instrument panel surface being non-zero;

[0059] A sample comparison data module, used to generate sample comparison data according to the sample data in the initial state and the sample data in the non-initial state;

[0060] The curve data generating module is used to generate curve data of the instrument panel surface hardness test according to the sample comparison data.

[0061] According to four aspects of the present invention, there is provided an electronic device, comprising: a processor, a communication interface, a memory and a communication bus, wherein the processor, the communication interface and the memory communicate with each other via the communication bus;

[0062] The memory stores a computer program, and when the computer program is executed by the processor, the processor executes the steps of the instrument panel surface hardness testing method.

[0063] According to five aspects of the present invention, there is provided a computer-readable storage medium, comprising: a computer program executable by an electronic device is stored therein, and when the computer program runs on the electronic device, the electronic device executes the steps of the instrument panel surface hardness testing method.

[0064] According to six aspects of the present invention, a test platform is provided, comprising:

[0065] An electronic device for implementing the steps of the instrument panel surface hardness testing method;

[0066] A processor, the processor runs a program, and when the program runs, the steps of the instrument panel surface hardness testing method are executed from the data output by the electronic device;

[0067] The storage medium is used to store a program, and when the program is running, the steps of the instrument panel surface hardness testing method are executed for the data output from the electronic device.

[0068] Through the above scheme, the following beneficial technical effects are obtained:

[0069] The present application collects data on the deformation state of the dashboard surface in the area to be tested on the dashboard surface, so that the test of the hardness of the dashboard surface is not limited by the thickness.

[0070] The present application controls the pressure head module to apply pressure on the dashboard surface and samples the curve data corresponding to the deformation state of the dashboard surface, so that the comparison of the dashboard surface hardness test can be intuitive to each applied pressure state.

[0071] This application queries the dashboard surface hardness standard database data according to the demand index data of the dashboard surface hardness, forms the standard curve data of the dashboard surface hardness test, makes the sampling data and the demand index data form an intuitive comparison, accurately locates each pressure application stage of the point, and covers the entire dashboard surface area to be tested.

[0072] This application generates a curve threshold interval to make the description of the test pass conclusion simple and the description of the unqualified conclusion location clear.

[0073] This application plans the test points in the area to be tested on the surface of the dashboard, so that the test conclusion can flexibly cope with the test of the surface hardness of dashboards of various design styles. BRIEF DESCRIPTION OF THE DRAWINGS

[0074] Figure 1 It is a structural diagram of a dashboard surface hardness testing system provided by one or more embodiments of the present invention.

[0075] Figure 2 It is a flow chart of a method for testing the surface hardness of an instrument panel provided by one or more embodiments of the present invention.

[0076] Figure 3 It is a structural diagram of a dashboard surface hardness testing device provided by one or more embodiments of the present invention.

[0077] Figure 4 A schematic diagram of a 3D-mesh dashboard structure according to a specific embodiment of the present invention.

[0078] Figure 5 A schematic diagram of a 3D-mesh dashboard surface hardness test process according to a specific embodiment of the present invention.

[0079] Figure 6 A schematic diagram of 3D-mesh dashboard surface hardness data sampling according to a specific embodiment of the present invention.

[0080] Figure 7 A schematic diagram of the graphical representation of the surface hardness data of a 3D-mesh dashboard according to a specific embodiment of the present invention.

[0081] Figure 8 A schematic diagram of the graphical representation of standard data of the surface hardness of a 3D-mesh dashboard according to a specific embodiment of the present invention.

[0082] Fig. 9 A schematic diagram of the comparison of the surface hardness graphic data of a 3D-mesh dashboard according to a specific embodiment of the present invention.

[0083] Fig.10 A structural block diagram of an electronic device for a method for testing the surface hardness of an instrument panel provided by one or more embodiments of the present invention. DETAILED DESCRIPTION

[0084] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0085] Figure 1 It is a structural diagram of a dashboard surface hardness testing system provided by one or more embodiments of the present invention.

[0086] like Figure 1 The instrument panel surface hardness testing system shown includes: a pressure head module, a pressure module, a positioning module, a pressure control module, a displacement measurement module and a bench module;

[0087] A pressure head module for contacting the instrument panel surface;

[0088] A pressure module, used for driving a pressure head module to apply pressure on a surface of the instrument panel;

[0089] a positioning module, used to locate the point where pressure is applied on the surface of the instrument panel and the direction of the pressure applied on the surface of the instrument panel;

[0090] A pressure control module, used for controlling a curve of the pressure module driving the pressure head module to apply pressure on the surface of the instrument panel;

[0091] A displacement measurement module, used to measure the deformation state of the instrument panel surface when pressure is applied to the instrument panel surface;

[0092] A test bench module, used to control the measured posture of the instrument panel sample;

[0093] The pressure head module, the pressure module, the positioning module, the pressure control module and the displacement measurement module control the measured posture setting of the instrument panel sample relative to the test bench module.

[0094] Specifically, in this embodiment, the shape and size of the pressure head module for contacting the dashboard surface include multiple types, and the shape and size of the pressure head module contacting the dashboard surface can be selected by simulating the application scenario of the dashboard. For example, according to the scenario where the finger and palm contact the dashboard surface, the shape and size of the pressure head module contacting the dashboard surface are selected. According to the application scenario of the simulated dashboard, the positioning module locates the point where pressure is applied on the dashboard surface, and the direction of the pressure applied on the dashboard surface. For example, according to the passenger's pressing and leaning habits, the point position where pressure is applied on the dashboard surface and the direction of the pressure applied on the dashboard surface are set.

[0095] Based on the shape and size of the pressure head module that contacts the dashboard surface, the point where pressure is applied on the dashboard surface and the direction of pressure applied on the dashboard surface can be located, and simulation test items can be set. Based on the simulation test items, the test data range for the dashboard surface hardness can be expanded to form a reasonable and comprehensive evaluation of the dashboard surface hardness.

[0096] In this embodiment, the displacement measurement module measures the deformation state of the dashboard surface when pressure is applied to the dashboard surface, including the distance the dashboard surface sinks before and after the pressure head module applies pressure to the test point; and also includes setting at least two reference points on the dashboard, and the position changes between the reference points before and after the pressure head module applies pressure to the test point.

[0097] In this embodiment, the direction of the pressure applied by the positioning module on the surface of the instrument panel includes a direction perpendicular to the surface of the instrument panel, a vertical downward direction, and other pressure directions selected according to application scenarios.

[0098] In this embodiment, the "test point" is a test block centered at a point corresponding to the contact of the pressure head module with the instrument panel surface, wherein the test point is the main data sampling point. It also includes using the test point as one of the "reference points"

[0099] Figure 2 It is a flow chart of a method for testing the surface hardness of an instrument panel provided by one or more embodiments of the present invention.

[0100] like Figure 2 The instrument panel surface hardness test methods shown include:

[0101] Step A1, setting a test area on the surface of the dashboard;

[0102] Step A2, selecting a test point in the area to be tested;

[0103] Step A3, sampling sample data of the initial state corresponding to the test point;

[0104] The sample data of the initial state includes data of the deformation state of the instrument panel surface and data of zero pressure applied to the instrument panel surface;

[0105] Step A4, corresponding to the test point, controlling the pressure head module to apply pressure on the surface of the instrument panel to collect sample data of a non-initial state;

[0106] The sample data of the non-initial state includes data of the pressure applied to the instrument panel surface being non-zero, and data of the deformation state of the instrument panel surface corresponding to the data of the pressure applied to the instrument panel surface being non-zero;

[0107] Step A5, generating sample comparison data according to the sample data in the initial state and the sample data in the non-initial state;

[0108] Step A6, generating curve data of the instrument panel surface hardness test according to the sample comparison data.

[0109] Specifically, in this embodiment, there are two types of areas to be tested. The first type is the area to be tested selected in relation to the structure of the instrument panel. For example, the instrument panel is provided with a hard surface for installation, connection, and support purposes, and other parts are provided with a soft surface, and the soft surface is set as the area to be tested. The second type is the area to be tested selected in relation to the use scenario of the instrument panel. For example, the area in contact with human limbs or objects in the application scenario is selected, and the second type of area to be tested is selected based on the first type of area to be tested.

[0110] In this embodiment, the sample data of the non-initial state includes the data of the dynamic deformation state of the dashboard surface during the pressure application process and the data of the deformation state of the dashboard surface during the static pressure application stage. That is, the generated sample comparison data is the data of the comparison of the deformation state of the dashboard surface before and after the pressure application condition.

[0111] In this embodiment, based on the sample comparison data, curve data of the dashboard surface hardness test is generated, including the pressure value of the applied pressure as the vertical axis and the distance value of the dashboard surface settlement as the horizontal axis, generating points of each comparison data in the horizontal and vertical coordinate graphs, and connecting the points of each comparison data to form a curve.

[0112] In this embodiment, a coordinate diagram of the test point position corresponding to the area to be tested is further set. In the coordinate diagram, the above-mentioned curve state corresponding to each test point is represented by grayscale, and the hardness of the dashboard surface position where the test point is located, the qualified or unqualified state, etc. are represented by color.

[0113] In this embodiment, generating data for the instrument panel surface hardness test based on the sample comparison data includes:

[0114] Obtain the dashboard surface hardness standard database;

[0115] The dashboard surface hardness standard database includes standard data of dashboard surface deformation state corresponding to the dashboard surface hardness, and standard data of dashboard surface pressure applied corresponding to the standard data of dashboard surface deformation state;

[0116] Obtain the required indicator data of the surface hardness of the instrument panel;

[0117] Corresponding to the demand index data of the instrument panel surface hardness, querying the instrument panel surface hardness standard database, extracting the standard data of the instrument panel surface deformation state and the standard data of the pressure applied to the instrument panel surface corresponding to the demand index data of the instrument panel surface hardness;

[0118] Based on the standard data of the instrument panel surface deformation state corresponding to the required index data of the instrument panel surface hardness and the standard data of the pressure applied to the instrument panel surface, the standard curve data of the instrument panel surface hardness test is generated.

[0119] Specifically, in this embodiment, the dashboard surface hardness standard database covers the testable range of the dashboard surface hardness test and the standard data for judging whether it is qualified; the demand index data for the dashboard surface hardness is the dashboard product design goal set according to the needs of the application scenario or other design needs, including the hardness design goal. Through the demand index data for the dashboard surface hardness, the dashboard surface hardness standard database is queried to extract standard data that can be used to evaluate the current dashboard sample. The standard data covers the standard data of the deformation state of the dashboard surface corresponding to the pressure applied to the dashboard surface. By comparing the data collected on the dashboard sample with the standard data, it can be determined whether the current dashboard sample meets the design requirements.

[0120] In this embodiment, the standard data is processed into a curve and aligned with the coordinate axis of the comparative data on the dashboard sample after the curve processing for curve data comparison.

[0121] In this embodiment, the curve data includes:

[0122] Acquire data of preset applied pressure;

[0123] Based on the test point, according to preset pressure application data, pressure is applied to the surface of the instrument panel to change the deformation state of the surface of the instrument panel;

[0124] Generate curve data corresponding to the applied pressure and the deformation state change according to the applied pressure on the instrument panel surface and the deformation state change of the instrument panel surface;

[0125] Also included is that the standard curve data for the instrument panel surface hardness test includes upper limit standard curve data and lower limit standard curve data;

[0126] Generate a curve graph according to the upper limit standard curve data and the lower limit standard curve data, including a curve threshold interval graph with the upper limit standard curve and the lower limit standard curve as boundaries;

[0127] According to the sample comparison data, a curve chart corresponding to the sample comparison data is obtained;

[0128] According to the curve graph and the curve threshold interval graph of the corresponding sample comparison data, the hardness of the instrument panel surface is judged to determine whether it meets the current required index of the hardness of the instrument panel surface;

[0129] If the curve mapping of the corresponding sample comparison data is within the curve threshold interval, the hardness of the test point of the corresponding sample comparison data is qualified;

[0130] If the curve mapping of the corresponding sample comparison data is outside the curve threshold range, the hardness of the test point of the corresponding sample comparison data is unqualified.

[0131] Specifically, in this embodiment, the area between the upper limit standard curve and the lower limit standard curve is the curve threshold interval. If the curve of the comparison data on the dashboard sample is within the curve threshold interval, it can be judged as qualified. Among them, the qualified object is based on the judgment of the test point. To judge the qualification of the entire dashboard sample, all test points in the test area on the dashboard surface need to be compared. If all test points are qualified, the hardness of the entire dashboard surface is qualified.

[0132] In this embodiment, the dashboard surface hardness standard database also includes: standard data of the maximum spacing between test points selected in the area to be tested;

[0133] Selecting spacing data of test points in the area to be tested based on standard data of the maximum spacing of test points in the area to be tested;

[0134] Determine whether the hardness of all the test points selected in the area to be tested is qualified;

[0135] If the hardness of all the test points selected in the area to be tested is qualified, then the hardness of the entire surface of the current dashboard is qualified;

[0136] The spacing data of the test points selected in the area to be tested is less than or equal to the standard data of the maximum spacing of the test points selected in the area to be tested.

[0137] Specifically, in this embodiment, the test points selected in the area to be tested are limited, and based on the fact that the hardness of all the test points selected in the area to be tested are qualified, the overall hardness of the current dashboard surface is qualified.

[0138] In order to further strengthen the rigor of the data, more dense auxiliary test points can be selected to replace one test point. For example, if the position of a preset test point is not easy to measure, multiple auxiliary test points can be set near the test point. By increasing the number of auxiliary test points, the missing data of the missing test point can be compensated, and the confidence of the overall hardness of the instrument panel surface can be enhanced.

[0139] In this embodiment, obtaining the required indicator data of the surface hardness of the instrument panel includes:

[0140] Obtaining instrument panel installation data and boundary data of the area to be tested on the instrument panel surface;

[0141] According to the instrument panel installation data and the boundary data of the area to be tested on the instrument panel surface, the demand index curve data of the current instrument panel surface hardness is obtained;

[0142] According to the demand index curve data of the current instrument panel surface hardness, query the instrument panel surface hardness standard database;

[0143] According to the query of the dashboard surface hardness standard database, plan the test points in the area to be tested on the dashboard surface;

[0144] Planning the test points in the area to be tested on the instrument panel surface includes setting the test point positions, setting the test point spacings, the pressures applied at the test points, and the deformation states of the instrument panel surface corresponding to the test points.

[0145] Specifically, in one embodiment, the dashboard skeleton is fixedly connected to the skeleton or frame components of the vehicle and hardened; the dashboard is spliced ​​with components on other operating tables to form an integrated surface, and the joints are subjected to transitional hardness treatment, that is, two components with different surface hardness form a continuous surface, and the junction needs to eliminate the step feeling to ensure that the hardness of the junction is similar. The dashboard is an irregular arc surface, and the position, direction, strength, and probability of contact between each part and the human body are marked. Based on the above, a demand index for the hardness of the dashboard surface is generated, and multiple areas to be tested are divided. Multiple continuous areas to be tested form a curve of the hardness demand index of the entire dashboard, and then the database is queried according to the curve of the hardness demand index, and then the test points in each area to be tested are spaced differently.

[0146] In order to evaluate whether the overall surface hardness of the dashboard is qualified, the position and spacing of the test points in the test area of ​​the dashboard surface are planned, and corresponding pressure tests and deformation tests are taken for different test points, so as to draw a conclusion on whether the overall surface hardness of the dashboard is qualified and locate the test points when it is unqualified. That is, based on the above, the same pressure is applied at different test points, and the test results of the dashboard surface deformation may be different, or, based on the same dashboard surface deformation test results, the conclusions on whether it is qualified may be different at different test points.

[0147] According to the required indicators of the instrument panel surface hardness, control the pressure, observe the deformation, and evaluate whether the instrument panel surface hardness is qualified.

[0148] Figure 3 It is a structural diagram of a dashboard surface hardness testing device provided by one or more embodiments of the present invention.

[0149] like Figure 3 The instrument panel surface hardness testing device shown includes: a to-be-tested area module, a test point selection module, an initial sample data module, a non-initial sample data module, a sample comparison data module, and a curve data generation module;

[0150] A test area module, used to set a test area on the surface of the dashboard;

[0151] A test point selection module is used to select test points in the area to be tested;

[0152] The initial sample data module is used to sample the sample data of the initial state corresponding to the test point;

[0153] The sample data of the initial state includes data of the deformation state of the instrument panel surface and data of zero pressure applied to the instrument panel surface;

[0154] The non-initial sample data module is used to control the pressure head module to apply pressure on the instrument panel surface at the corresponding test point and to sample sample data of the non-initial state;

[0155] The sample data of the non-initial state includes data of the pressure applied to the instrument panel surface being non-zero, and data of the deformation state of the instrument panel surface corresponding to the data of the pressure applied to the instrument panel surface being non-zero;

[0156] A sample comparison data module, used for generating sample comparison data according to sample data in an initial state and sample data in a non-initial state;

[0157] The curve data generation module is used to generate curve data for instrument panel surface hardness test based on sample comparison data.

[0158] It is worth noting that although the system only discloses the test area module, the test point selection module, the initial sample data module, the non-initial sample data module, the sample comparison data module, and the curve data generation module, it does not mean that the device is limited to the above-mentioned basic functional modules. Rather, what the present invention wants to express is that, based on the above-mentioned basic functional modules, those skilled in the art can arbitrarily add one or more functional modules in combination with the prior art to form an infinite number of embodiments or technical solutions. In other words, the system is open rather than closed. Just because the present embodiment only discloses individual basic functional modules, it cannot be considered that the scope of protection of the claims of the present invention is limited to the above-mentioned basic functional modules.

[0159] In a specific embodiment, Figure 4 The 3D-mesh dashboard structure shown includes a skin, a 3D-mesh softening layer and a dashboard skeleton. The skin and the 3D-mesh softening layer are attached to the dashboard skeleton to form a certain thickness.

[0160] In another specific embodiment, Figure 5 The 3D-mesh dashboard surface hardness test process shown includes: step S1: obtaining the measurement point position; step S2: applying a corresponding load at the measurement point position and measuring the corresponding displacement data; step S3: obtaining the softness and hardness evaluation curve of the 3D-mesh covered dashboard based on the load data and position data; step S4: confirming whether the evaluation curve is within the upper and lower ranges of the standard curve.

[0161] In step S1, if Figure 6 The surface hardness data sampling of the 3D-mesh instrument panel shown in the figure first obtains the boundary line L1 of the 3D-mesh softened layer on the instrument panel, that is, the boundary line between the 3D-mesh softened layer and the instrument panel frame. Further, based on the requirements of installation and splicing with other components, the 3D-mesh boundary line L1 is offset by 7.5 mm toward the center of the instrument panel to obtain the measurement boundary line L2. The closed area within the measurement boundary line L2 is the measurement area S. Multiple measurement point positions can be selected in the measurement area S for measurement.

[0162] In step S2, within the measuring area S, any measuring point can be selected, and a pressure head with a diameter of φ15 mm (e.g., to simulate finger pressure) is used to apply loads of 5N, 10N, 15N, 20N, 25N, and 30N (e.g., to simulate the force of finger pressure) at the same loading point (measuring point), and the force direction is perpendicular to the pressure surface of the pressure head; when different loads are applied, the displacement of the loading point is measured respectively, wherein the displacement of the loading point is the relative displacement of the pressure surface where the loading point is located, that is, the coordinate difference of the pressure surface along the force direction under different load states and when no load is applied; the displacement measuring device can use a micrometer, or other mechanical, optical or electronically controlled measuring devices.

[0163] Table 1

[0164] Load(N) Displacement measurement value (mm) 5 07 10 1.5 15 2.3 20 2.6 25 27 30 2.8

[0165] As shown in Table 1, the displacement measurement values ​​obtained when different loads are applied to a 3D-mesh covered dashboard with a thickness of 3 mm for a certain vehicle model.

[0166] In step S3, based on the displacement data corresponding to different pressure loads obtained in Table 1, coordinate points are made in the load-displacement coordinate system and the following are obtained: Figure 7 The 3D-mesh dashboard surface hardness data is shown as a graphical data.

[0167] Table 2

[0168]

[0169] In step S4, the hardness standard requirements of the softening layer of the 3 mm thick 3D-mesh covered instrument panel are obtained as shown in Table 2; based on the load and displacement data in Table 2, the following are obtained: Figure 8 The 3D-mesh dashboard surface hardness standard data graphically shows the softness and hardness evaluation standard curve, as shown in the figure. Figure 8 As shown, K1 is the lower limit curve of the softness and hardness evaluation standard, and K2 is the upper limit curve of the softness and hardness evaluation standard; further, the softness and hardness evaluation curve Ka of a certain vehicle dashboard obtained in step S3 is imported into the softness and hardness evaluation standard curve coordinate system, as shown in FIG. Fig. 9 The comparison of the 3D-mesh instrument panel surface hardness graphic data shown further confirms that Ka is within the upper and lower ranges of the standard curves K1 and K2, meeting the standard requirements, where Ka is the hardness evaluation curve of a certain vehicle model instrument panel.

[0170] Fig.10 A structural block diagram of an electronic device for a method for testing the surface hardness of an instrument panel provided by one or more embodiments of the present invention.

[0171] like Fig.10As shown, the present application provides an electronic device, including: a processor, a communication interface, a memory and a communication bus, wherein the processor, the communication interface and the memory communicate with each other through the communication bus;

[0172] A computer program is stored in the memory. When the computer program is executed by the processor, the processor executes the steps of a method for testing the surface hardness of an instrument panel.

[0173] The present application also provides a computer-readable storage medium storing a computer program executable by an electronic device. When the computer program runs on the electronic device, the electronic device executes the steps of a method for testing the surface hardness of an instrument panel.

[0174] The present application also provides a testing platform, including:

[0175] Electronic device for implementing the steps of the instrument panel surface hardness test method;

[0176] A processor, the processor runs a program, and when the program runs, the steps of the instrument panel surface hardness testing method are executed from the data output by the electronic device;

[0177] The storage medium is used to store a program, and when the program is running, it executes the steps of the instrument panel surface hardness testing method for the data output from the electronic device.

[0178] The communication bus mentioned in the above electronic device can be a Peripheral Component Interconnect (PCI) bus or an Extended Industry Standard Architecture (EISA) bus, etc. The communication bus can be divided into an address bus, a data bus, a control bus, etc. For ease of representation, only one thick line is used in the figure, but it does not mean that there is only one bus or one type of bus.

[0179] The electronic device includes a hardware layer, an operating system layer running on the hardware layer, and an application layer running on the operating system. The hardware layer includes hardware such as a central processing unit (CPU), a memory management unit (MMU), and a memory. The operating system can be any one or more computer operating systems that implement electronic device control through a process, such as a Linux operating system, a Unix operating system, an Android operating system, an iOS operating system, or a Windows operating system. In addition, in an embodiment of the present invention, the electronic device can be a handheld device such as a smart phone or a tablet computer, or can be an electronic device such as a desktop computer or a portable computer, which is not particularly limited in the embodiment of the present invention.

[0180] The execution subject of the electronic device control in the embodiment of the present invention may be an electronic device, or a functional module in the electronic device that can call and execute a program. The electronic device may obtain the firmware corresponding to the storage medium. The firmware corresponding to the storage medium is provided by the supplier. The firmware corresponding to different storage media may be the same or different, which is not limited here. After the electronic device obtains the firmware corresponding to the storage medium, the firmware corresponding to the storage medium may be written into the storage medium, specifically, the firmware corresponding to the storage medium may be burned into the storage medium. The process of burning the firmware into the storage medium may be implemented using existing technology, which will not be described in detail in the embodiment of the present invention.

[0181] The electronic device may also obtain a reset command corresponding to the storage medium. The reset command corresponding to the storage medium is provided by the supplier. The reset commands corresponding to different storage media may be the same or different, and are not limited here.

[0182] At this time, the storage medium of the electronic device is a storage medium in which the corresponding firmware is written, and the electronic device can respond to the reset command corresponding to the storage medium in the storage medium in which the corresponding firmware is written, so that the electronic device resets the storage medium in which the corresponding firmware is written according to the reset command corresponding to the storage medium. The process of resetting the storage medium according to the reset command can be implemented by the existing technology and will not be described in detail in the embodiments of the present invention.

[0183] For the convenience of description, the above devices are described in terms of functions and are divided into various units and modules. Of course, when implementing the present application, the functions of each unit and module can be implemented in the same or multiple software and / or hardware.

[0184] Those skilled in the art will appreciate that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as those generally understood by those skilled in the art in the art to which the present invention belongs. It should also be understood that terms such as those defined in general dictionaries should be understood to have meanings consistent with the meanings in the context of the prior art, and will not be interpreted with idealized or overly formal meanings unless specifically defined.

[0185] For the method embodiments, for the sake of simplicity, they are all described as a series of action combinations, but those skilled in the art should know that the embodiments of the present invention are not limited by the order of the actions described, because according to the embodiments of the present invention, some steps can be performed in other orders or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification are all preferred embodiments, and the actions involved are not necessarily required by the embodiments of the present invention.

[0186] It can be known from the description of the above implementation modes that those skilled in the art can clearly understand that the present application can be implemented by means of software plus a necessary general hardware platform. Based on such an understanding, the technical solution of the present application can be essentially or partly contributed to the prior art in the form of a software product, which can be stored in a storage medium such as ROM / RAM, a magnetic disk, an optical disk, etc., and includes several instructions for enabling a computer device (which can be a personal computer, a server or a network device, etc.) to execute the methods described in the various implementation modes of the present application or certain parts of the implementation modes.

[0187] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A dashboard surface hardness testing system, characterized in that: The instrument panel surface hardness testing system comprises: a pressure head module, a pressure module, a positioning module, a pressure control module, a displacement measurement module and a bench module; The pressure head module is used to contact the surface of the instrument panel; The pressure module is used to drive the pressure head module to apply pressure on the surface of the instrument panel; The positioning module is used to locate the point where pressure is applied on the surface of the instrument panel, and the direction of the pressure applied on the surface of the instrument panel; The pressure control module is used to control the pressure module to drive the pressure head module to apply pressure on the instrument panel surface; The displacement measurement module is used to measure the deformation state of the instrument panel surface during the process of applying pressure to the instrument panel surface; The test bench module is used to control the measured posture of the instrument panel sample; The pressure head module, the pressure module, the positioning module, the pressure control module and the displacement measurement module control the measured posture setting of the instrument panel sample relative to the test bench module.

2. A method for testing the surface hardness of an instrument panel, characterized in that: The instrument panel surface hardness testing method comprises: Setting the area to be tested on the dashboard surface; Selecting a test point in the area to be tested; Corresponding to the test point, sampling sample data of the initial state; The sample data of the initial state includes data of the deformation state of the instrument panel surface and data of zero pressure applied to the instrument panel surface; Corresponding to the test point, controlling the pressure head module to apply pressure on the surface of the instrument panel to sample sample data of a non-initial state; The sample data of the non-initial state includes data of the pressure applied to the instrument panel surface being non-zero, and data of the deformation state of the instrument panel surface corresponding to the data of the pressure applied to the instrument panel surface being non-zero; Generate sample comparison data according to the sample data in the initial state and the sample data in the non-initial state; According to the sample comparison data, curve data of the instrument panel surface hardness test is generated.

3. The instrument panel surface hardness testing method according to claim 2, characterized in that: Generating data for the instrument panel surface hardness test according to the sample comparison data includes: Obtain the dashboard surface hardness standard database; The dashboard surface hardness standard database includes standard data of dashboard surface deformation state corresponding to the dashboard surface hardness, and standard data of dashboard surface pressure applied corresponding to the standard data of dashboard surface deformation state; Obtain the required indicator data of the surface hardness of the instrument panel; Corresponding to the demand index data of the instrument panel surface hardness, querying the instrument panel surface hardness standard database, extracting the standard data of the instrument panel surface deformation state and the standard data of the pressure applied to the instrument panel surface corresponding to the demand index data of the instrument panel surface hardness; Standard curve data for the instrument panel surface hardness test is generated based on the standard data of the instrument panel surface deformation state and the standard data of the pressure applied to the instrument panel surface extracted corresponding to the demand index data of the instrument panel surface hardness.

4. The instrument panel surface hardness testing method according to claim 3, characterized in that: The curve data includes: Acquire data of preset applied pressure; Based on the test point, according to preset pressure application data, pressure is applied to the surface of the instrument panel to change the deformation state of the surface of the instrument panel; Generate curve data corresponding to the applied pressure and the deformation state change according to the applied pressure on the instrument panel surface and the deformation state change of the instrument panel surface; Also included is that the standard curve data for the instrument panel surface hardness test includes upper limit standard curve data and lower limit standard curve data; Generate a curve graph according to the upper limit standard curve data and the lower limit standard curve data, including a curve threshold interval graph with the upper limit standard curve and the lower limit standard curve as boundaries; According to the sample comparison data, obtaining a curve graph corresponding to the sample comparison data; According to the curve graph corresponding to the sample comparison data and the curve threshold interval graph, judging whether the surface hardness of the instrument panel meets the current requirement index of the surface hardness of the instrument panel; If the curve corresponding to the sample comparison data is mapped within the curve threshold interval, the hardness of the test point corresponding to the sample comparison data is qualified; If the curve corresponding to the sample comparison data is mapped outside the curve threshold range, the hardness of the test point corresponding to the sample comparison data is unqualified.

5. The instrument panel surface hardness testing method according to claim 4, characterized in that: The dashboard surface hardness standard database also includes: standard data of the maximum spacing between test points selected in the area to be tested; Selecting spacing data of test points in the area to be tested according to standard data of the maximum spacing of test points in the area to be tested; Determine whether the hardness of all the test points selected in the area to be tested is qualified; If the hardness of all the test points selected in the area to be tested is qualified, then the hardness of the entire surface of the current dashboard is qualified; The spacing data of the test points selected in the area to be tested is less than or equal to the standard data of the maximum spacing of the test points selected in the area to be tested.

6. The instrument panel surface hardness testing method according to claim 5, characterized in that: The demand index data for obtaining the surface hardness of the instrument panel includes: Obtaining instrument panel installation data and boundary data of the area to be tested on the instrument panel surface; According to the instrument panel installation data and the boundary data of the area to be tested on the surface of the instrument panel, obtaining the demand index curve data of the current instrument panel surface hardness; querying the dashboard surface hardness standard database according to the demand index curve data of the current dashboard surface hardness; Planning test points in the area to be tested on the surface of the dashboard according to querying the dashboard surface hardness standard database; The planning of the test points in the area to be tested on the instrument panel surface includes setting the test point positions, setting the test point spacings, the pressures applied at the test points and the deformation states of the instrument panel surface corresponding to the test points.

7. A device for testing the surface hardness of an instrument panel, characterized in that: The instrument panel surface hardness testing device comprises: A test area module, used to set a test area on the surface of the dashboard; A test point selection module, used for selecting test points in the area to be tested; An initial sample data module, used for sampling sample data of an initial state corresponding to the test point; The sample data of the initial state includes data of the deformation state of the instrument panel surface and data of zero pressure applied to the instrument panel surface; A non-initial sample data module, used to control the pressure head module to apply pressure on the surface of the instrument panel corresponding to the test point, and to sample sample data of a non-initial state; The sample data of the non-initial state includes data of the pressure applied to the instrument panel surface being non-zero, and data of the deformation state of the instrument panel surface corresponding to the data of the pressure applied to the instrument panel surface being non-zero; A sample comparison data module, used to generate sample comparison data according to the sample data in the initial state and the sample data in the non-initial state; The curve data generating module is used to generate curve data of the instrument panel surface hardness test according to the sample comparison data.

8. An electronic device, characterized in that: include: A processor, a communication interface, a memory and a communication bus, wherein the processor, the communication interface and the memory communicate with each other via the communication bus; A computer program is stored in the memory, and when the computer program is executed by the processor, the processor executes the steps of the instrument panel surface hardness testing method according to any one of claims 2 to 6.

9. A computer-readable storage medium, characterized in that: include: It stores a computer program executable by an electronic device. When the computer program runs on the electronic device, the electronic device executes the steps of the instrument panel surface hardness testing method as described in any one of claims 2 to 6.

10. A test platform, characterized in that: include: An electronic device for implementing the steps of the instrument panel surface hardness testing method according to any one of claims 2 to 6; A processor, the processor runs a program, and when the program runs, data output from the electronic device executes the steps of the instrument panel surface hardness testing method according to any one of claims 2 to 6; A storage medium for storing a program, wherein when the program is running, the program executes the steps of the instrument panel surface hardness testing method according to any one of claims 2 to 6 for data output from an electronic device.

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