CN113986630A - Touch performance test method and system of touch screen - Google Patents
Touch performance test method and system of touch screen Download PDFInfo
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- CN113986630A CN113986630A CN202111205581.9A CN202111205581A CN113986630A CN 113986630 A CN113986630 A CN 113986630A CN 202111205581 A CN202111205581 A CN 202111205581A CN 113986630 A CN113986630 A CN 113986630A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/22—Detection or location of defective computer hardware by testing during standby operation or during idle time, e.g. start-up testing
- G06F11/2205—Detection or location of defective computer hardware by testing during standby operation or during idle time, e.g. start-up testing using arrangements specific to the hardware being tested
- G06F11/2221—Detection or location of defective computer hardware by testing during standby operation or during idle time, e.g. start-up testing using arrangements specific to the hardware being tested to test input/output devices or peripheral units
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/22—Detection or location of defective computer hardware by testing during standby operation or during idle time, e.g. start-up testing
- G06F11/26—Functional testing
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/30—Monitoring
- G06F11/34—Recording or statistical evaluation of computer activity, e.g. of down time, of input/output operation ; Recording or statistical evaluation of user activity, e.g. usability assessment
- G06F11/3409—Recording or statistical evaluation of computer activity, e.g. of down time, of input/output operation ; Recording or statistical evaluation of user activity, e.g. usability assessment for performance assessment
Abstract
The invention provides a touch performance testing method and system of a touch screen, and belongs to the technical field of touch testing. The method is realized based on a touch performance testing device, the touch performance testing device comprises a touch head capable of touching a touch screen and a mechanical arm capable of driving the touch head to physically move so as to switch touch positions, and the method comprises the following steps: acquiring positioning coordinate information in a test process; analyzing the touch performance of the touch screen according to the positioning coordinate information; judging whether the touch screen meets the test requirement or not according to the touch performance analysis result of the touch screen, and generating a corresponding analysis report, wherein if the touch screen does not meet the test requirement, abnormal numerical value labeling is carried out in the process of generating the analysis report; and outputting and pushing the analysis report to a monitoring end. According to the scheme of the invention, the labor cost is reduced, and the accuracy and objectivity of the touch test are improved.
Description
Technical Field
The invention relates to the technical field of touch control test, in particular to a touch control performance test method and a touch control performance test system of a touch control screen.
Background
Along with the continuous improvement of the intelligent level, the requirement on human-computer interaction is higher and higher, and the requirements on convenience and response timeliness of human-computer interaction are higher and higher. Touch technology has a remarkable position in the field of human-computer interaction nowadays, when a human finger is used as induction input of a touch mark, when a graphical application on a screen is contacted, a touch feedback system on the screen can drive various connecting devices according to a pre-programmed program, can replace mechanical key light guide panel input, and responds to a preset interaction function by means of a display picture. Therefore, performance parameters such as sensitivity and accuracy of the touch screen directly affect the use experience of the user, and a corresponding touch test system is required for objectively evaluating the performance parameters of the touch screen which affect the use experience. With the wider application range of the touch screen and the greater and greater test requirements of the touch screen, the problems of high test cost, low test accuracy and the like of the traditional touch screen test method due to the large manual requirements, the defects of the test method and the like exist, and in order to avoid the problem, a touch test method with a high intelligent level needs to be created.
Disclosure of Invention
The embodiment of the invention aims to provide a method and a system for testing the touch performance of a touch screen, so as to at least solve the problems of high test cost and low test accuracy of the conventional touch screen test method.
In order to achieve the above object, a first aspect of the present invention provides a method for testing touch performance of a touch screen, where the method is implemented based on a touch performance testing apparatus, where the touch performance testing apparatus includes a touch head capable of touching the touch screen, and a mechanical arm capable of driving the touch head to physically move to switch touch positions, and the method includes: acquiring positioning coordinate information in a test process; analyzing the touch performance of the touch screen according to the positioning coordinate information; judging whether the touch screen meets the test requirement or not according to the touch performance analysis result of the touch screen, and generating a corresponding analysis report, wherein if the touch screen does not meet the test requirement, abnormal numerical value labeling is carried out in the process of generating the analysis report; and outputting and pushing the analysis report to a monitoring end.
Optionally, the positioning coordinate information in the test process includes: target coordinates, actual coordinates, and report coordinates; the target coordinates are coordinates of a required test fitting point under a reference fixed datum preset on the surface of the touch screen; the test fitting points are a plurality of preset test fitting points on the touch screen, and the plurality of test fitting points are uniformly distributed on the touch screen; the actual coordinates are actual contact point coordinates of the touch head and the touch screen in the testing process under the fixed reference same as the target coordinates; the reported coordinates are the coordinates of the actually triggered touch sensor fed back by the touch screen; the touch control sensor is a sensor which is fixed on the touch control screen to be detected and used for collecting touch signals, and a plurality of touch control sensors are uniformly distributed on the touch control screen to be detected.
Optionally, the method further includes: correcting the motion accuracy of the mechanical arm, comprising: randomly selecting one test fitting point, and acquiring a target coordinate of the test fitting point; controlling the mechanical arm to move to a preset position based on the target coordinate, and then recovering the actual coordinate of the actual touch position of the touch head, wherein the preset position is the moving target position of the touch head generated according to the target coordinate; and comparing the target coordinate with the actual coordinate, and outputting correction success information under the condition that the deviation of the target coordinate and the actual coordinate is within a preset deviation threshold range.
Optionally, the analyzing the touch performance of the touch screen according to the positioning coordinate information includes: and performing position accuracy performance test of the touch screen, including: performing P touch tests on each test fitting point to obtain P report coordinates; wherein P is more than or equal to 2; obtaining the average report coordinate of each test fitting point according to the P report coordinates of each test fitting point, wherein the calculation formula is as follows:
wherein i, j, k is the kth data of the test fitting point with the target coordinate (i, j), and k is equal to P (1,2, …, P); p is the touch test times corresponding to the test fitting points;
respectively corresponding to the horizontal coordinate value and the vertical coordinate value of the average report coordinate of the test fitting point; for each test fitting point, calculating the deviation distance between the target coordinate and the average report coordinate of the test fitting point as the measurement accuracy corresponding to the test fitting point; comparing the measurement accuracy of all the test fitting points, and screening out the measurement accuracy with the maximum numerical value as the measurement accuracy of the touch screen; wherein, the calculation formula of the deviation distance between the target coordinate and the average report coordinate is as follows:
wherein the content of the first and second substances,
is the deviation distance between the target coordinate of the test fit point with target coordinate (i, j) and the average reported coordinate.
Optionally, the analyzing the touch performance of the touch screen according to the positioning coordinate information includes: performing accuracy assessment of the touch screen, comprising: performing P touch tests on each test fitting point to obtain P report coordinates; wherein P is more than or equal to 2; for each test fitting point, calculating a coordinate difference value between each report coordinate in the P report coordinates of the test fitting point and the target coordinate of the test fitting point, wherein the calculation formula is as follows:
wherein the content of the first and second substances,
(ii) is the coordinate difference between the target coordinate of the test fit point with target coordinate (i, j) and the average reported coordinate; xri,j，yri,jRespectively an abscissa value and an ordinate value of the report coordinate of the test fitting point with the target coordinate (i, j); xt ofi,j，yti,jRespectively an abscissa value and an ordinate value of a target coordinate of the test fitting point with a target coordinate (i, j); screening out the maximum value of the coordinate difference value from all the coordinate difference values of the test fitting point as the measurement accuracy corresponding to the test fitting point; and comparing the measurement accuracy of all the measurement fitting points, and taking the measurement accuracy with the maximum numerical value as the measurement accuracy of the touch screen.
Optionally, the analyzing the touch performance of the touch screen according to the positioning coordinate information includes: measuring the jitter performance of the touch screen, comprising: performing multiple touch tests on each test fitting point to obtain multiple report coordinates; for each test fitting point, calculating an average report coordinate of a plurality of report coordinates of the test fitting point, respectively comparing a distance deviation value between each report coordinate and the average report coordinate, and screening out a maximum value in the distance deviation values as a jitter test result corresponding to the test fitting point; comparing the jitter test results of all the test fitting points, and screening out the jitter test result with the largest value as the jitter test result of the touch screen; the distance deviation value calculation formula between the report coordinate and the average report coordinate is as follows:
and Rti, j is a distance deviation value between the reported coordinate and the average reported coordinate.
Optionally, the analyzing the touch performance of the touch screen according to the positioning coordinate information includes: measuring the linearity of the touch screen, comprising: performing linear sliding touch control on the touch screen at intervals of fixed intervals in a preselected direction to obtain a plurality of parallel sliding touch tracks; calculating the deviation distance between a test straight line and a preset optimal fitting line, which are fitted according to the report coordinates of each touch sensor along the track, in each sliding touch track; wherein, the linear equation of the preset best fit line is as follows:
ax+by+1＝0；
wherein a and b are x and y coefficients of a linear equation respectively;
the calculation formulas of the fitted test straight line coefficients a and b are respectively as follows:
wherein x isi，yiThe abscissa and the ordinate of the ith touch point along the sliding touch track are respectively 1,2, …, n;
screening out the maximum distance of the deviation distance between the report coordinate of the touch point and a preset best fit line in all sliding tracks as the linearity calculation result of the touch screen, wherein the calculation rule is as follows:
where L is the linearity calculation result.
Optionally, the determining, according to the touch performance analysis result of the touch screen, whether the touch screen meets the test requirement includes: comparing the measurement accuracy of the touch screen with a preset accuracy threshold, and if the measurement accuracy of the touch screen is greater than the preset accuracy threshold, judging that the accuracy of the touch screen is abnormal; comparing the measurement accuracy of the touch screen with a preset accuracy threshold, and if the measurement accuracy of the touch screen is greater than the preset accuracy threshold, judging that the accuracy of the touch screen is abnormal; comparing the jitter test result of the touch screen with a preset jitter threshold, and if the jitter test result of the touch screen is larger than the preset jitter threshold, judging that the touch screen has abnormal jitter; and comparing the linearity calculation result of the touch screen with a preset linearity threshold, and if the linearity calculation result of the touch screen is greater than the preset linearity threshold, judging that the linearity of the touch screen is abnormal.
A second aspect of the present invention provides a system for testing touch performance of a touch screen, the system comprising: the acquisition unit is used for acquiring positioning coordinate information in the test process; a processing unit to: analyzing the touch performance of the touch screen according to the positioning coordinate information; judging whether the touch screen meets the test requirement or not according to the touch performance analysis result of the touch screen, and generating a corresponding analysis report, wherein if the touch screen does not meet the test requirement, abnormal numerical value labeling is carried out in the process of generating the analysis report; and the pushing unit is used for outputting and pushing the analysis report to the monitoring end.
In another aspect, the present invention provides a computer-readable storage medium, which stores instructions that, when executed on a computer, cause the computer to execute the method for testing touch performance of a touch screen.
Through the technical scheme, in the automatic touch test device, various positioning information in the test process is obtained, and the deviation performance between the actual touch effect and the ideal touch effect is judged based on the positioning chip. And judging whether the actual touch effect is in accordance with the expectation or not based on the performance with deviation. Because the touch sensor is fixedly arranged on the touch screen, the target position and the actual position can be accurately obtained through the positioning coordinates, and the deviation performance between the actual touch effect and the ideal touch effect can be equivalently obtained through the comparison between the actual position and the target position. Manual intervention is not needed, and the test objectivity and accuracy are both ensured.
Additional features and advantages of embodiments of the invention will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the embodiments of the invention without limiting the embodiments of the invention. In the drawings:
fig. 1 is a flowchart illustrating steps of a method for testing touch performance of a touch screen according to an embodiment of the present invention;
FIG. 2 is a flowchart illustrating a step of analyzing touch performance of a touch screen according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a touch performance testing apparatus according to an embodiment of the present invention;
fig. 4 is a system structure diagram of a touch performance testing system of a touch screen according to an embodiment of the present invention.
Description of the reference numerals
10-an acquisition unit; 20-a processing unit; 30-pushing unit.
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
Fig. 3 is a touch performance testing apparatus according to an embodiment of the present invention, which includes a mechanical arm and a touch head, wherein a touch pad is fixed on a clamping plate at a monitoring position, and the mechanical arm drives the touch head to perform a touch operation test. The mechanical arm is provided with a plurality of bionic joints, and can drive the touch head to perform touch operation in any touch area of the touch screen, so that the all-dimensional evaluation of the touch screen is ensured.
Fig. 4 is a system structure diagram of a touch performance testing system of a touch screen according to an embodiment of the present invention. As shown in fig. 4, an embodiment of the present invention provides a touch performance testing system for a touch screen, where the system includes: the acquisition unit 10 is used for acquiring positioning coordinate information in the test process; a processing unit 20 for: analyzing the touch performance of the touch screen according to the positioning coordinate information; judging whether the touch screen meets the test requirement or not according to the touch performance analysis result of the touch screen, and generating a corresponding analysis report, wherein if the touch screen does not meet the test requirement, abnormal numerical value labeling is carried out in the process of generating the analysis report; and the pushing unit 30 is used for outputting and pushing the analysis report to a monitoring end.
Fig. 1 is a flowchart of a method for testing touch performance of a touch screen according to an embodiment of the present invention. As shown in fig. 1, an embodiment of the present invention provides a method for testing touch performance of a touch screen, where the method includes:
step S10: and acquiring the information of each positioning coordinate in the test process.
Specifically, when the performance of the touch screen is judged, the functional judgment of the touch screen is mainly carried out, and on one hand, the usability is realized, and on the other hand, the controllability is realized. The scheme of the invention is based on the controllability of the touch screen for detection, and the controllability of the touch screen mainly has the performances of accuracy, jitter, linearity and the like. Wherein accuracy is the ability to test the proximity of the touch sensor and module reporting touch location relative to their target location; the accuracy is used for analyzing and evaluating the degree of difference of the distance between the coordinates output when the touch screen area is clicked and the real physical position, and reflecting the accuracy of the touch screen when the touch screen is touched; jitter is used for testing the degree of quality of consistency of output coordinates when clicking the same position, and if the index is too large, abnormality such as click-to-slide occurs, so that uncertainty is caused; the linearity is the degree of deviation of accurate scribing of the evaluation touch screen.
Based on the performance indexes of the controllability, an actual touch test is required, and whether actual operation is expected or not is judged according to comparison between a test result and an ideal result. The touch screen is essentially a sensor, which consists of a touch detection component and a touch screen controller. The touch detection component is arranged in front of the display screen and used for detecting the touch position of a user and sending the touch position to the touch screen controller after receiving the touch position; the touch screen controller is mainly used for receiving touch information from the touch point detection device, converting the touch information into touch point coordinates and sending the touch point coordinates to the CPU, and meanwhile, receiving and executing commands sent by the CPU. When the detection part is touched, the screen end is fixed, so that the touch preset position can be judged according to the fixed position, and if the actual touch position is the same as the target position, the control accuracy of the touch screen is met. Based on this, the position of the touch detection member is expressed by way of coordinates, and then the actual touch position is also expressed by way of coordinates. Preferably, there are three coordinate relationships, target, actual and reported; the target coordinate is a test fitting point coordinate required under the fixed reference of the surface of the touch screen to be tested; the touch screen to be tested is provided with a plurality of test fitting points, wherein the test fitting points are a plurality of test fitting points preset on the touch screen to be tested, and the plurality of test fitting points are uniformly distributed on the touch screen to be tested; the actual coordinates are coordinates of actual contact points of the touch head and the touch screen to be tested in the test under the same fixed reference as the target coordinates; the report coordinate is a report coordinate fed back by the touch screen to be tested. The acquisition unit 10 acquires these three relationships, respectively, based on which the acquisition unit 10 includes: the target coordinate acquisition module acquires target coordinates based on the test fitting points; the actual coordinate acquisition module is used for acquiring actual coordinates based on the moving position of the mechanical arm; and the report coordinate acquisition module acquires a report coordinate based on the feedback information of the touch screen.
Preferably, for the division of the test fit points, a coordinate system is established by taking a left upper point of a touch range of the touch screen to be tested as an origin, the test fit points are distributed at equal intervals along an x axis and a y axis, all the test fit points cover the whole touch area until the distribution, and the length of the x axis and the length of the y axis respectively correspond to the width and the length of the touch area. As shown in fig. 2, a total of m × n test fit points are obtained, and the coordinates of each test fit point are:
(Xi,j,Yi,j)＝((i-1)d+xbest,(j-1)d+ybest)(i＝1,..m,j＝1,...,n)
step S20: and analyzing the touch performance of the touch screen according to the positioning coordinate information.
Specifically, based on the analysis of the operational parameters related to the controllable performance of the touch screen in step S10, it can be known that the performance to be evaluated has accuracy, precision, jitter, and linearity. Therefore, the touch screen to be tested needs to be tested based on the performance indexes, specifically, as shown in fig. 2, the method includes the following steps:
step S201: and carrying out position accuracy performance test.
In particular, position accuracy is the ability to test the proximity of the touch sensor and module to report the touch position relative to its target position. Therefore, it is necessary to compare the deviation value between the actual touch position and the ideal touch position, and the larger the deviation is, the lower the position accuracy is. Firstly, a test fitting point is selected randomly, then the target coordinate of the point is obtained, the mechanical arm is controlled to operate based on the target coordinate, and the contact is driven to click a preset position to perform touch control. In order to avoid a large error caused by a single test, it is preferable to perform multiple touch tests at each point, and recover the reported coordinates of each touch test. For example, if 5 touch tests are performed on each test fitting point, 5 report coordinates are obtained correspondingly. After obtaining a plurality of report coordinates, carrying out average calculation on the report coordinates to obtain an average report coordinate, wherein the calculation formula is as follows:
wherein i, j, k is the kth data of the test fitting point with the target coordinate (i, j), and k is equal to P (1,2, …, P); p is the touch test frequency of the corresponding test fitting point;
respectively, the average report coordinate abscissa and ordinate of the corresponding test fitting point. And after the average report coordinate is obtained, calculating the deviation distance between the target coordinate of the test fitting point and the average report coordinate to be used as the measurement accuracy of the corresponding test fitting point. The calculation formula is as follows:
wherein the content of the first and second substances,
is the deviation distance between the target coordinate of the test fit point with target coordinate (i, j) and the average reported coordinate. And by analogy, the measurement accuracy of all the test fitting points is obtained. Even if the precision of most of the test fit points is high, if a small number of test fit points with poor precision exist, the overall performance of the touch screen to be tested can still be responded. Therefore, the overall accuracy of the touch screen to be tested is affected by the test fit point with the lowest accuracy, and the preferred selected deviation value is the largest, that is, the accuracy of the fit point to be tested with the lowest accuracy is the accuracy of the overall touch screen. To facilitate direct substitution of numerical values, it is preferred that in the present application, the greater the numerical value of the degree of accuracy, the lower the degree of accuracy per se. Based on the above, after the accuracy of all the to-be-detected fitting points is obtained, the accuracy of the to-be-detected fitting point with the highest accuracy is selected as the accuracy of the whole touch screen.
Step S202: and carrying out accuracy evaluation.
Specifically, the accuracy is used for analyzing and evaluating the degree of the difference between the output coordinates when the touch screen area is clicked and the distance between the output coordinates and the real physical position, and reflecting the accuracy of the touch screen when the touch screen is touched. Because of the influence of sensor routing of the touch panel and the like, the touch density degree of the touch area has difference, and therefore the maximum difference value of the output coordinate and the physical coordinate is calculated to be the measurement accuracy. Based on the above, multiple touch tests are performed on each test fitting point, and multiple report coordinates are correspondingly obtained. And then calculating a coordinate difference value between each report coordinate and the target coordinate, wherein the calculation formula is as follows:
wherein the content of the first and second substances,
(ii) is the coordinate difference between the target coordinate of the test fit point with target coordinate (i, j) and the average reported coordinate; xri,j，yri,jAbscissa values of the reported coordinates of the test fitting points, respectively, having target coordinates (i, j)And ordinate values; xt ofi,j，yti,jRespectively, an abscissa value and an ordinate value of the target coordinate of the test fitting point whose target coordinate is (i, j). And after the deviation value between each report coordinate and the target coordinate in the single test fit point is obtained, selecting the value with the maximum deviation value as the measurement accuracy of the current test fit point. To facilitate direct substitution of numerical values, it is preferred that in the present application, the greater the numerical value of accuracy, the lower the accuracy per se. And by analogy, the measurement accuracy of all the test fitting points is obtained, then the measurement accuracy of all the test fitting points is compared, and the accuracy of the test fitting point with the maximum measurement accuracy is screened out to be used as the measurement accuracy of the current touch screen.
Step S203: and measuring the jitter performance of the touch screen to be measured.
Specifically, the jitter performance of the touch screen is used for testing the consistency of output coordinates when the same position is clicked; if the index is too large, abnormality such as click-to-slide occurs, thereby causing uncertainty. The measurement principle is that accurate test is carried out in a target grid (i, j) by using the same report data collected by clicking a report up and down each time on a touch probe, and the jitter is the distance between a target coordinate and an average report coordinate, wherein coordinate data are collected when the target grid (i, j) keeps a stable state of a touch head. Based on the above, firstly, multiple touch tests are performed on the same fitting test point, multiple report coordinates are obtained correspondingly, and then an average report coordinate of the multiple report coordinates is calculated, wherein the calculation formula is as follows:
wherein R isti，jIs the distance deviation value between the reported coordinate and the average reported coordinate. And then respectively comparing the distance deviation value between each report coordinate and the average report coordinate, and screening the maximum value of the distance deviation value as a jitter test result of the corresponding fitting test point. Because the jitter performance of the touch screen is influenced by the maximum jitter of each test fitting point, the obtained jitter performanceAfter the jitter test result of the test fitting point exists. And comparing all the test fitting point jitter test results, and screening out the jitter test result with the maximum value as the jitter test result of the current touch screen.
Step S204: and measuring the linearity of the touch screen to be measured.
Specifically, the linearity is to evaluate the deviation degree of the accurate scribing of the touch screen, and the test principle is to scribe n parallel lines at equal intervals d in the selected direction (vertical, horizontal or diagonal) of the touch object. And then, fitting according to the feedback coordinates to obtain a touch straight line, comparing the inspection conditions of the touch straight line and the actual straight line, and evaluating the linearity of the touch screen. Firstly, on a touch screen to be detected, linear sliding touch is carried out at intervals of fixed intervals in a pre-selected direction, and a plurality of parallel sliding touch tracks are obtained. Such as a horizontal straight line, a slope of 45 deg., etc., it is necessary to ensure that all lines are parallel to each other. And calculating the deviation distance between the test straight line and a preset optimal fitting line which are fitted according to the report coordinates of the touch sensors along the track in each sliding touch track. The equation for a standard straight line is:
ax+by+1＝0
in oblique line sliding touch, a report coordinate can be obtained by triggering a sensor along the way, a straight line of the current track can be fitted based on the report coordinate of single sliding touch, and the calculation formulas of the coefficients a and b of the fitted test straight line are respectively as follows:
wherein x isi，yiRespectively an abscissa and an ordinate of an ith touch point along the sliding touch track, wherein i is a serial number of a trigger sensor on the current track, and i is 1,2, …, n; screening out the deviation between the report coordinate of the touch point and a preset best fit line in all sliding tracksThe maximum distance of the distances is used as a linearity calculation result of the touch screen to be measured; the calculation rule is as follows:
step S30: and judging whether the touch screen meets the test requirement or not according to the touch performance analysis result of the touch screen, and generating a corresponding analysis report, wherein if the touch screen does not meet the test requirement, abnormal numerical value labeling is carried out in the process of generating the analysis report.
Specifically, after obtaining the performance parameters in step S20, the processing unit 20 compares the parameters with corresponding preset parameter thresholds, and determines whether the parameters meet the requirements. Specifically, the measurement accuracy of the touch screen to be measured is compared with a preset accuracy threshold, and when the measurement accuracy of the touch screen to be measured is greater than the preset accuracy threshold, the accuracy of the touch screen to be measured is judged to be abnormal; comparing the measurement accuracy of the touch screen to be detected with a preset accuracy threshold, and judging that the accuracy of the touch screen to be detected is abnormal when the measurement accuracy of the touch screen to be detected is greater than the preset accuracy threshold; comparing a jitter test result of the touch screen to be tested with a preset jitter threshold value, and judging that the touch screen to be tested is abnormal in jitter when the jitter test result of the touch screen to be tested is greater than the preset jitter threshold value; and comparing the linearity calculation result of the touch screen to be detected with a preset linearity threshold value, and judging that the linearity of the touch screen to be detected is abnormal when the linearity calculation result of the touch screen to be detected is greater than the preset linearity threshold value. For example, if the test requirement of the accuracy is less than or equal to 4mm and the actual measurement result is 4.32mm, it indicates that the accuracy of the current touch screen does not meet the test requirement, the current touch screen is determined to be unqualified, the data is subjected to the different color standard, and a "unqualified" test result is obtained. For example, when a report of the current touch screen is generated, the actual measurement results "4.32" and "unqualified" are marked by red, the area or position marked by the "unqualified" is visualized, and other normal data are blue. By the method, unqualified parameters can be highlighted, so that later-stage supervision personnel can conveniently check and analyze the position area or trend exceeding the standard, and report auditing efficiency is improved.
Step S40: and outputting and pushing the analysis report to a monitoring end.
Specifically, after the analysis report is generated, the pushing unit 30 pushes the generated electronic report of the analysis report to the monitoring end, and displays the electronic report at the monitoring end for the relevant personnel to check. Preferably, when an analysis report has abnormal parameters, alarm information is sent while the analysis report is pushed to remind relevant personnel that the current test sample is unqualified and needs to be independently arranged.
In a possible real-time manner, the method further comprises correcting the motion accuracy of the mechanical arm, and comprises the following steps: randomly selecting one test fitting point, and acquiring a target coordinate of the test fitting point; controlling the mechanical arm to move based on the target coordinate, and recovering an actual coordinate of an actual touch position after the mechanical arm reaches a preset position; and comparing the target coordinate with the actual coordinate, and outputting correction success information when the deviation between the target coordinate and the actual coordinate is smaller than a preset deviation threshold range. If the deviation is larger than the preset deviation threshold value, the deviation of the mechanical arm can influence the subsequent measurement result, so related personnel need to be reminded to correct the mechanical arm until the test is successful, the subsequent test can be carried out, and the successful correction information is output.
The present invention also provides a computer-readable storage medium, which stores instructions that, when executed on a computer, cause the computer to perform the touch performance test of the touch screen.
Those skilled in the art will appreciate that all or part of the steps in the method for implementing the above embodiments may be implemented by a program, which is stored in a storage medium and includes several instructions to enable a single chip, a chip, or a processor (processor) to execute all or part of the steps in the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
While the embodiments of the present invention have been described in detail with reference to the accompanying drawings, the embodiments of the present invention are not limited to the details of the above embodiments, and various simple modifications can be made to the technical solution of the embodiments of the present invention within the technical idea of the embodiments of the present invention, and the simple modifications are within the scope of the embodiments of the present invention. It should be noted that the various features described in the above embodiments may be combined in any suitable manner without departing from the scope of the invention. In order to avoid unnecessary repetition, the embodiments of the present invention will not be described separately for the various possible combinations.
In addition, any combination of the various embodiments of the present invention is also possible, and the same should be considered as disclosed in the embodiments of the present invention as long as it does not depart from the spirit of the embodiments of the present invention.
Claims (10)
1. A method for testing the touch performance of a touch screen is realized based on a touch performance testing device, wherein the touch performance testing device comprises a touch head capable of touching the touch screen and a mechanical arm capable of driving the touch head to move physically to switch touch positions, and the method comprises the following steps:
acquiring positioning coordinate information in a test process;
analyzing the touch performance of the touch screen according to the positioning coordinate information;
judging whether the touch screen meets the test requirement or not according to the touch performance analysis result of the touch screen, and generating a corresponding analysis report, wherein if the touch screen does not meet the test requirement, abnormal numerical value labeling is carried out in the process of generating the analysis report;
and outputting and pushing the analysis report to a monitoring end.
2. The method of claim 1, wherein the positioning coordinate information during the test comprises:
target coordinates, actual coordinates, and report coordinates; wherein the content of the first and second substances,
the target coordinates are coordinates of a required test fitting point under a reference fixed datum preset on the surface of the touch screen;
the test fitting points are a plurality of preset test fitting points on the touch screen, and the plurality of test fitting points are uniformly distributed on the touch screen;
the actual coordinates are actual contact point coordinates of the touch head and the touch screen in the testing process under the fixed reference same as the target coordinates;
the reported coordinates are the coordinates of the actually triggered touch sensor fed back by the touch screen; wherein the content of the first and second substances,
the touch control sensor is fixed on the touch control screen to be detected and used for collecting touch signals, and a plurality of touch control sensors are uniformly distributed on the touch control screen to be detected.
3. The method of claim 2, further comprising:
correcting the motion accuracy of the mechanical arm, comprising:
randomly selecting one test fitting point, and acquiring a target coordinate of the test fitting point;
controlling the mechanical arm to move to a preset position based on the target coordinate, and then recovering the actual coordinate of the actual touch position of the touch head, wherein the preset position is the moving target position of the touch head generated according to the target coordinate;
and comparing the target coordinate with the actual coordinate, and outputting correction success information under the condition that the deviation of the target coordinate and the actual coordinate is within a preset deviation threshold range.
4. The method of claim 2, wherein the analyzing the touch performance of the touch screen according to the positioning coordinate information comprises:
and performing position accuracy performance test of the touch screen, including:
performing P touch tests on each test fitting point to obtain P report coordinates; wherein P is more than or equal to 2;
obtaining the average report coordinate of each test fitting point according to the P report coordinates of each test fitting point, wherein the calculation formula is as follows:
wherein i, j, k is the kth data of the test fitting point with the target coordinate (i, j), and k is equal to P (1,2, …, P); p is the touch test times corresponding to the test fitting points;
respectively corresponding to the horizontal coordinate value and the vertical coordinate value of the average report coordinate of the test fitting point;
for each test fitting point, calculating the deviation distance between the target coordinate and the average report coordinate of the test fitting point as the measurement accuracy corresponding to the test fitting point;
comparing the measurement accuracy of all the test fitting points, and screening out the measurement accuracy with the maximum numerical value as the measurement accuracy of the touch screen; wherein the content of the first and second substances,
the deviation distance between the target coordinates and the average reported coordinates is calculated as:
wherein the content of the first and second substances,
is the deviation distance between the target coordinate of the test fit point with target coordinate (i, j) and the average reported coordinate.
5. The method of claim 2, wherein the analyzing the touch performance of the touch screen according to the positioning coordinate information comprises:
performing accuracy assessment of the touch screen, comprising:
performing P touch tests on each test fitting point to obtain P report coordinates; wherein P is more than or equal to 2;
for each test fitting point, calculating a coordinate difference value between each report coordinate in the P report coordinates of the test fitting point and the target coordinate of the test fitting point, wherein the calculation formula is as follows:
wherein the content of the first and second substances,
(ii) is the coordinate difference between the target coordinate of the test fit point with target coordinate (i, j) and the average reported coordinate; xri,j，yri,jRespectively an abscissa value and an ordinate value of the report coordinate of the test fitting point with the target coordinate (i, j); xt ofi,j，yti,jRespectively an abscissa value and an ordinate value of a target coordinate of the test fitting point with a target coordinate (i, j);
screening out the maximum value of the coordinate difference value from all the coordinate difference values of the test fitting point as the measurement accuracy corresponding to the test fitting point;
and comparing the measurement accuracy of all the measurement fitting points, and taking the measurement accuracy with the maximum numerical value as the measurement accuracy of the touch screen.
6. The method of claim 2, wherein the analyzing the touch performance of the touch screen according to the positioning coordinate information comprises:
measuring the jitter performance of the touch screen, comprising:
performing multiple touch tests on each test fitting point to obtain multiple report coordinates;
for each test fitting point, calculating an average report coordinate of a plurality of report coordinates of the test fitting point, respectively comparing a distance deviation value between each report coordinate and the average report coordinate, and screening out a maximum value in the distance deviation values as a jitter test result corresponding to the test fitting point;
comparing the jitter test results of all the test fitting points, and screening out the jitter test result with the largest value as the jitter test result of the touch screen; wherein the content of the first and second substances,
the distance deviation value between the report coordinate and the average report coordinate is calculated according to the formula:
wherein R isti，jIs the distance deviation value between the reported coordinate and the average reported coordinate.
7. The method of claim 2, wherein the analyzing the touch performance of the touch screen according to the positioning coordinate information comprises:
measuring the linearity of the touch screen, comprising:
performing linear sliding touch control on the touch screen at intervals of fixed intervals in a preselected direction to obtain a plurality of parallel sliding touch tracks;
calculating the deviation distance between a test straight line and a preset optimal fitting line, which are fitted according to the report coordinates of each touch sensor along the track, in each sliding touch track; wherein, the linear equation of the preset best fit line is as follows:
ax+by+1＝0；
wherein a and b are respectively the test linear coefficients of x and y of the linear equation;
the calculation formulas of the test straight line coefficients a and b are respectively as follows:
wherein x isi，yiThe abscissa and the ordinate of the ith touch point along the sliding touch track are respectively 1,2, …, n;
screening out the maximum distance of the deviation distance between the report coordinate of the touch point and a preset best fit line in all sliding tracks as the linearity calculation result of the touch screen, wherein the calculation rule is as follows:
where L is the linearity calculation result.
8. The method according to any one of claims 4 to 7, wherein the determining whether the touch screen meets the test requirement according to the touch performance analysis result of the touch screen comprises:
comparing the measurement accuracy of the touch screen with a preset accuracy threshold, and if the measurement accuracy of the touch screen is greater than the preset accuracy threshold, judging that the accuracy of the touch screen is abnormal;
comparing the measurement accuracy of the touch screen with a preset accuracy threshold, and if the measurement accuracy of the touch screen is greater than the preset accuracy threshold, judging that the accuracy of the touch screen is abnormal;
comparing the jitter test result of the touch screen with a preset jitter threshold, and if the jitter test result of the touch screen is larger than the preset jitter threshold, judging that the touch screen has abnormal jitter;
and comparing the linearity calculation result of the touch screen with a preset linearity threshold, and if the linearity calculation result of the touch screen is greater than the preset linearity threshold, judging that the linearity of the touch screen is abnormal.
9. A touch performance test system of a touch screen, the system comprising:
the acquisition unit is used for acquiring positioning coordinate information in the test process;
a processing unit to:
analyzing the touch performance of the touch screen according to the positioning coordinate information;
judging whether the touch screen meets the test requirement or not according to the touch performance analysis result of the touch screen, and generating a corresponding analysis report, wherein if the touch screen does not meet the test requirement, abnormal numerical value labeling is carried out in the process of generating the analysis report;
and the pushing unit is used for outputting and pushing the analysis report to the monitoring end.
10. A computer-readable storage medium having instructions stored thereon, which when executed on a computer, cause the computer to execute the touch performance testing method of the touch screen according to any one of claims 1 to 8.
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| CN112882928A (en) * | 2021-02-02 | 2021-06-01 | 中国汽车技术研究中心有限公司 | Automatic testing method and system for touch screen of intelligent cabin of automobile |
| CN114721892A (en) * | 2022-06-08 | 2022-07-08 | 深圳市宇泰光电科技有限公司 | Touch screen equipment test system and test method |
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