CN111693263A - Touch screen durability testing method, device and system - Google Patents
Touch screen durability testing method, device and system Download PDFInfo
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- CN111693263A CN111693263A CN202010463342.2A CN202010463342A CN111693263A CN 111693263 A CN111693263 A CN 111693263A CN 202010463342 A CN202010463342 A CN 202010463342A CN 111693263 A CN111693263 A CN 111693263A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0414—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means using force sensing means to determine a position
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention relates to the technical field of touch screen inspection, in particular to a method, equipment and system for inspecting durability of a touch screen. The method is applied to the touch screen durability test system and comprises the following steps: calibrating a durability test coordinate of the touch screen; performing screen sliding inspection and monitoring on the touch screen according to the calibration coordinates and preset inspection times; in the inspection process, sweat simulation is carried out on the touch screen sliding screen contact; and receiving screen sliding inspection information of the touch screen to obtain an inspection result. According to the invention, the pressing force and the friction force of the product inspection are accurately controlled through the sliding screen contact and the counterweight, sweat simulation is carried out, the actual use scene is effectively simulated, the accuracy of durability verification is realized, the inspection precision of the product is ensured, and the problem that parameters such as the pressing force, the friction force and the sweat addition amount cannot be accurately controlled in the touch screen inspection is effectively solved.
Description
Technical Field
The invention relates to the technical field of touch screen inspection, in particular to a method, equipment and system for inspecting durability of a touch screen.
Background
At any time, the social development and the living standard of people are increasingly improved, the application of the touch screen in the mass life is more and more extensive, especially in electronic products such as automobile sound or navigation products, the touch screen becomes a standard configuration, and the requirement of users on the touch screen is higher and higher. In practical application of the touch screen, the touch screen is often disabled due to the combined action of three load conditions, namely pressure, friction and sweat corrosion.
In order to verify the service life of the product under the condition, an endurance performance verification test simulating an actual use scene is required; at present, in the market, a test method and a test device capable of simulating a touch screen actually used product are lacked, and particularly, how to accurately control three parameters, namely pressing force, friction force and sweat addition amount, so that how to effectively test the durability of the touch screen becomes a key problem which is paid attention to by automobile manufacturers or distributors and even users.
Disclosure of Invention
The present invention provides a method, an apparatus, and a system for testing durability of a touch screen, which overcome at least one of the above-mentioned drawbacks (shortcomings) of the prior art.
In order to solve the technical problems, the technical scheme of the invention is as follows:
a touch screen durability testing method is applied to a touch screen durability testing system, and comprises the following steps:
calibrating a durability test coordinate of the touch screen;
performing screen sliding inspection and monitoring on the touch screen according to the calibration coordinates and preset inspection times;
in the inspection process, sweat simulation is carried out on the touch screen sliding screen contact;
and receiving screen sliding inspection information of the touch screen to obtain an inspection result.
Further, before calibrating the endurance test coordinates of the touch screen, the method further includes:
and adjusting the test pressing force and the friction force according to the test requirement.
Further, the calibrating the endurance test coordinates of the touch screen includes:
initializing the touch screen;
and calibrating the coordinates of the touch screen according to a preset screen sliding track to obtain a first calibration point and a second calibration point.
Further, the performing screen sliding inspection and monitoring on the touch screen according to the calibration coordinates and the preset inspection times includes:
performing screen sliding back and forth between the first calibration point and the second calibration point to obtain coordinates of the pressing point when the screen sliding operation is in contact with and leaves;
and comparing and judging the pressing points in the contact and the separation with the corresponding calibration points respectively to obtain the inspection information.
Further, in the testing process, performing sweat simulation on the touch screen sliding screen contact comprises:
in the inspection process, liquid dropping operation is carried out on a touch screen sliding screen contact;
and adjusting the dropping time and the dropping liquid amount according to the preset sweat amount.
The invention also provides a touch screen durability testing device, which is applied to a touch screen durability system and comprises:
the positioning device is used for positioning the touch screen;
the pressing device is used for performing finger simulation pressing on the touch screen;
the driving device is in driving connection with the pressing device and is used for driving the pressing device to complete screen sliding operation of the touch screen; and
the vacuum liquid dropping device is used for carrying out sweat simulation on the touch screen sliding screen contact;
and the driving device and the vacuum liquid dropping device are in control connection with the processor so as to realize automatic inspection of the touch screen.
Furthermore, the pressing device comprises a sliding screen contact and a counterweight, and the counterweight is arranged above the sliding screen contact and used for controlling the pressing force of the sliding screen contact.
Furthermore, the driving device comprises a transmission mechanism and a lifting mechanism, wherein the transmission mechanism is in driving connection with the sliding screen contact and is used for driving the sliding screen contact to perform sliding screen operation; the lifting mechanism is connected with the counterweight piece in a lifting mode and used for completing lifting and dropping of the counterweight piece on the sliding screen contact.
Further, the vacuum liquid dropping device comprises an air control valve, a timing mechanism and a liquid dropping mechanism; the control valve, the timing mechanism and the liquid dropping mechanism are in control connection, and the liquid dropping mechanism completes control of liquid dropping amount and liquid dropping time through the control valve and the timing mechanism.
Further, the inspection equipment also comprises a sealing plate, wherein the sealing plate is arranged between the positioning device and the driving device and is used for sealing the touch panel during inspection.
The invention also provides a touch screen durability testing system, which comprises touch screen durability testing equipment and a processor; the processor is in control connection with the touch screen durability testing equipment, and the following steps are realized through the processor:
calibrating a durability test coordinate of the touch screen;
performing screen sliding inspection and monitoring on the touch screen according to the calibration coordinates and preset inspection times;
in the detection process, sweat simulation is carried out on the touch screen;
and receiving screen sliding inspection information of the touch screen to obtain an inspection result.
According to the invention, the pressing force and the friction force of the product inspection are accurately controlled through the sliding screen contact and the counterweight, and the sweat simulation is realized through the vacuum liquid dropping device, so that the actual use scene is effectively simulated, the accuracy of the durability verification is realized, the inspection precision of the product is ensured, and the problem that parameters such as the pressing force, the friction force and the sweat addition amount cannot be accurately controlled in the touch screen inspection is effectively solved. Meanwhile, the driving device drives and presses the sliding screen of the sliding screen contact, so that the manual finger pressing of the sliding screen is simulated, and the inspection reliability of the product is ensured.
Drawings
Fig. 1 is a structural flow chart of a touch screen durability testing method according to an embodiment of the invention.
Fig. 2 is a flowchart illustrating a detailed structure of step 101 of a touch screen endurance testing method according to an embodiment of the present invention.
FIG. 3 is a flowchart illustrating the detailed structure of step 102 of the method for testing durability of a touch screen according to an embodiment of the present invention.
FIG. 4 is a flowchart illustrating a detailed structure of step 103 of the method for testing durability of a touch screen according to an embodiment of the present invention.
Fig. 5 is a front structural view of a touch screen durability testing apparatus according to an embodiment of the present invention.
Fig. 6 is a rear structure view of the touch screen durability testing apparatus according to the embodiment of the present invention.
FIG. 7 is a system block diagram of a touch screen endurance testing system according to an embodiment of the present invention.
Wherein:
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Examples
Fig. 1 shows a structural flow chart of a touch screen durability testing method according to an embodiment of the invention.
As shown in fig. 1, the embodiment provides a method for testing durability of a touch screen, which specifically includes the following steps:
101. and calibrating the durability test coordinates of the touch screen.
The processor calibrates the touch screen according to the screen sliding track, and can calibrate the part to be inspected of the touch screen at a fixed point during calibration. For example, the starting point and the end point of the screen sliding track are calibrated, so that two calibration points are obtained, and comparison of subsequent screen sliding operations is facilitated.
102. And performing screen sliding inspection and monitoring on the touch screen according to the coordinates of the calibration point and preset inspection times.
And the processor performs screen sliding inspection on the touch screen according to the preset inspection times, monitors intermediate data in real time in the screen sliding inspection, and performs judgment and comparison according to the coordinates of the calibration point. Specifically, the preset inspection times are set by the inspection times required by the actual product.
The screen sliding test mode can adopt a mode of carrying out hand screen sliding simulation operation between two points, for example, when the screen sliding operation is started, the contact is put down, contacts with the touch screen and slides, and after the sliding is finished, the contact with the touch screen is removed, and one screen sliding operation is finished. The intermediate data comprises a contact point position coordinate, a dissociation point coordinate and comparison judgment data.
103. And in the detection process, sweat simulation is carried out on the touch screen.
In the sliding screen inspection process, the treater control vacuum dropping device carries out the sweat simulation to the touch-sensitive screen, and is specific, according to sweat simulation demand, control dropping liquid volume and dropping liquid time to reach the simulation effect of reality sweat.
104. And receiving screen sliding inspection information of the touch screen to obtain an inspection result.
And the processor receives the touch screen inspection information in the sliding screen inspection process and judges to obtain an inspection result according to the inspection information. Of course, the processor may also perform the determination of the inspection result by retaining the inspection information and by means of manual identification.
The touch screen durability testing method has the advantages that the method provides the touch screen durability testing method capable of simulating actual use scenes, sweat simulation is added in screen sliding testing, simulation of a real environment is effectively achieved, and testing precision of durability testing is improved. Meanwhile, the method compares and judges the contact point and the release point in the screen sliding operation through the calibration of the detection coordinate of the touch screen, monitors in real time to obtain intermediate data, and can intelligently obtain a detection result through a processor, so that the reliability of the detection of the touch screen is improved, and the problems of low precision and low reliability in the detection of the service life of the current touch screen product are solved.
In some embodiments, the calibrating the touch screen endurance test coordinates further comprises:
100. and adjusting the test pressing force and the friction force according to the test requirement.
Preferably, the sliding screen pressing force and the friction force of the touch screen are adjusted by the weight of the counterweight and the material of the sliding screen contact.
Fig. 2 shows a flowchart of a specific structure of step 101 of the touch screen durability testing method according to the embodiment.
In some embodiments, as shown in fig. 2, the step of calibrating the touch screen endurance test coordinates comprises:
201. the touch screen is initialized.
202. And calibrating the coordinates of the touch screen according to a preset screen sliding track to obtain a first calibration point and a second calibration point.
The processor calibrates the touch screen coordinate according to a preset screen sliding track, determines a first calibration point and a second calibration point, and acquires the coordinates of the first calibration point and the second calibration point for judgment and comparison of subsequent inspection.
Fig. 3 shows a flowchart of a specific structure of step 102 of the touch screen endurance testing method according to this embodiment.
In some embodiments, as shown in fig. 3, the step of performing a sliding screen inspection and monitoring on the touch screen according to the calibration coordinates and the preset inspection times includes:
301. and performing screen sliding back and forth between the first calibration point and the second calibration point to obtain the coordinates of the pressing point when the screen sliding operation is in contact with and leaves.
The processor controls the driving device to drive the pressing device to perform screen sliding operation, and acquires coordinates of pressing points when the contact head is in contact with the touch screen and when the contact head is away from the touch screen in the screen sliding operation.
302. And comparing and judging the pressed points in the contact and the leaving with the corresponding calibration respectively to obtain the inspection information.
The processor respectively compares and judges the pressing points of the contact and the touch screen in the sliding screen operation with the corresponding calibration points, judges whether the pressing points are in the range of the corresponding calibration points, and records the obtained inspection results. For example, the inspection parameters, i.e., the inspection results, are recorded in databases of the local and server. Specifically, the corresponding index points contacting the pressing point and leaving the pressing point are determined according to the screen sliding direction.
Fig. 4 shows a flowchart of a specific structure of step 103 of the touch screen endurance testing method according to this embodiment.
In some embodiments, as shown in fig. 4, the step of performing sweat simulation on the touch screen during the testing process includes:
401. and in the inspection process, liquid dropping operation is carried out on the touch screen sliding screen contact.
402. And adjusting the dropping time and the dropping liquid amount according to the preset sweat amount.
In the testing process, the treater passes through the vacuum dropping device and carries out the dropping liquid operation to the sliding screen contact, and the people hand contact sweat condition of simulation actual sight. Specifically, according to the simulated sweat volume, the dropping time and the dropping volume are adjusted, so that the reliability of the actual scene simulation is ensured.
Fig. 5 and 6 show a front structure view and a rear structure view of the touch screen endurance testing apparatus, respectively.
Referring to fig. 5 to 6, the present embodiment further provides a touch screen durability testing apparatus, which includes a positioning device 10, a pressing device 20, a driving device 30, and a vacuum dropping device 40, wherein the positioning device 10 is used for positioning the touch screen to ensure that the touch screen does not slide during the testing process, and specifically, the positioning device 10 is a horizontal positioning device 10 for horizontally positioning the touch screen. The pressing device 20 is used for performing finger-simulated pressing on the touch screen, is in driving connection with the driving device 30, and realizes screen sliding operation of the touch screen through driving of the driving device 30. In addition, the vacuum dropping device 40 is used for performing sweat simulation on a sliding screen contact of the touch screen, so that the accuracy of durability test of the touch screen is improved. The driving device 30 and the vacuum dripping device 40 are also in control connection with the processor, and the automatic inspection of the touch screen is completed through the control of the processor.
In some embodiments, the pressing device 20 includes a sliding screen contact and a weight member, and the weight member is disposed above the sliding screen contact and used for controlling the downward pressing force of the sliding screen contact. The pressing force of the touch screen in the durable detection is accurately controlled through the mass adjustment of the counterweight piece. In particular, preferably, the weight member is a weight. In addition, during the inspection, the pressing device 20 is in contact with the touch screen through the sliding screen contact, the finger touch is simulated manually, the weight of the counterweight is combined, and the friction force between the pressing device 20 and the touch screen is accurately adjusted by adjusting the material of the sliding screen contact. Preferably, in the embodiment, the sliding screen contact adopts conductive silicone.
In some embodiments, the driving device 30 includes a transmission mechanism and a lifting mechanism, and particularly, the transmission mechanism is horizontally connected with the sliding screen contact in a driving manner, and the transmission device is used for driving the sliding screen contact to perform the sliding screen operation. In addition, the lifting mechanism is connected with the counterweight in a lifting mode, and the pressing device 20 is used for dropping and lifting the counterweight through the lifting mechanism in the sliding screen process, so that the sliding screen contact can be pressed and loosened on the touch screen. The driving device 30 controls the pressing device 20 to simulate finger movements through the transmission mechanism and the lifting mechanism, so as to perform screen sliding operation. Specifically, in this embodiment, the transmission mechanism is a driving electric cylinder, and the air lifting mechanism is a stepping motor.
In some embodiments, in terms of sweat simulation, the vacuum dropping device 40 includes a gas control valve, a timing mechanism and a dropping mechanism, wherein the gas control valve and the timing mechanism are respectively connected with the dropping mechanism in a control manner, so as to control the dropping amount and the dropping time of the dropping mechanism through the size of the gas flow and the time of the liquid valve, thereby realizing the simulation of finger sweat in the actual scene simulation and increasing the inspection precision of the product.
Specifically, the driving device 30 and the vacuum dropping device 40 are connected with the processor in a control way, and the controller is used for controlling the screen sliding action and sweat simulation of product inspection.
In some embodiments, in terms of the inspection environment, the inspection apparatus further includes a sealing plate 50, which primarily serves as a seal and insulation. Specifically, the sealing plate 50 is disposed between the positioning device 10 and the driving device 30, and during inspection, the inspection environment in which the product is located is isolated from the motor by the sealing plate 50, so as to perform a sealing and heat insulation function. Preferably, the sealing plate 50 is an acrylic plate.
The benefit of this embodiment check out test set lies in, this equipment passes through the accurate control of sliding screen contact and weight realization to the pressing force and the frictional force of product inspection to realize the sweat simulation through vacuum dropping device 40, thereby effectively simulated the in-service use scene, realized the accuracy that durability verified, guarantee the inspection precision of product, effectively solved in the touch-sensitive screen inspection pressing force, frictional force and sweat addition isoparametric problem that can't carry out the accurate control. Meanwhile, the driving device 30 is used for driving the sliding screen of the sliding screen contact and pressing and lifting the sliding screen contact, manual finger pressing of the sliding screen is simulated, and the inspection reliability of the product is ensured.
Fig. 7 shows a system block diagram of the touch screen endurance testing system of the present embodiment.
As shown in fig. 7, the present embodiment provides a touch screen endurance testing system, including a touch screen endurance testing apparatus and a processor; the processor is in control connection with the touch screen durability testing device, and the testing system controls the touch screen durability testing device through the processor to realize the following steps:
calibrating a durability test coordinate of the touch screen;
performing screen sliding inspection and monitoring on the touch screen according to the calibration coordinates and preset inspection times;
in the detection process, sweat simulation is carried out on the touch screen;
and receiving screen sliding inspection information of the touch screen to obtain an inspection result.
Specifically, in this embodiment, the processor is configured to control an action of the driving device and a dropping action of the vacuum dropping device, and is in communication connection with the touch screen to complete interaction and monitoring of the pressing parameters, thereby completing the durability test of the touch screen.
Specifically, for better operation experience, the inspection action flow of the touch screen durability inspection system of the embodiment is provided, specifically, the weight of the counterweight and the material of the sliding screen contact are adjusted according to the product preset inspection requirement, and the inspection parameters of the inspection equipment are adjusted. When the detection is started, the processor initializes the touch screen and then calibrates the coordinates of the touch screen to obtain a first calibration point and a second calibration point. And after the calibration is finished, performing screen sliding inspection according to the screen sliding inspection times.
In one screen sliding operation, the lifting mechanism drops the counterweight, and the transmission mechanism starts to act after resetting and moves according to a preset screen sliding track. In the moving process, the processor monitors intermediate data of the sliding screen and judges the direction of the sliding screen, meanwhile, after the action is finished, the lifting mechanism lifts the counterweight to finish lifting of the sliding screen contact, the lifting point is recorded, the corresponding calibration point is read, and whether the calibration point is in the range or not is judged. After that, the lifting mechanism puts down the counterweight, the transmission mechanism slides the screen in the opposite direction, and the next screen sliding operation is carried out. The processor controls the checking device to perform a screen sliding operation between the first calibration point and the second calibration point, and then records the read parameters into a database of the local server.
Meanwhile, in the inspection process, the processor realizes automatic liquid dropping in the inspection through the vacuum liquid dropping device, and judges whether the standard test is normally carried out through the position of the calibration point, so that the reliability of the inspection is ensured. More specifically, the system can be carried out in a normal-temperature or high-temperature inspection environment.
The advantage of the inspection system of this embodiment lies in, this system realizes pressing the simulation of atress, friction and three kinds of load conditions of sweat corruption through inspection equipment to simulate the actual service environment of a touch-sensitive screen, guarantee the reliability and the inspection precision of inspection. The system also controls the full-automatic action of the sliding screen through the processor, ensures the stability and effectiveness of system inspection, and greatly improves the efficiency and precision of the durability inspection of the touch screen.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (11)
1. A touch screen durability testing method is applied to a touch screen durability testing system, and comprises the following steps:
calibrating a durability test coordinate of the touch screen;
performing screen sliding inspection and monitoring on the touch screen according to the calibration coordinates and preset inspection times;
in the inspection process, sweat simulation is carried out on the touch screen sliding screen contact;
and receiving screen sliding inspection information of the touch screen to obtain an inspection result.
2. The method for testing durability of a touch screen according to claim 1, wherein the calibrating the durability test coordinates of the touch screen further comprises:
and adjusting the test pressing force and the friction force according to the test requirement.
3. The method for testing durability of a touch screen according to claim 1, wherein the calibrating the durability test coordinates of the touch screen comprises:
initializing the touch screen;
and calibrating the coordinates of the touch screen according to a preset screen sliding track to obtain a first calibration point and a second calibration point.
4. The method for testing the durability of the touch screen according to claim 3, wherein the step of performing the sliding test and monitoring on the touch screen according to the calibration coordinates and the preset test times comprises the following steps:
performing screen sliding back and forth between the first calibration point and the second calibration point to obtain coordinates of the pressing point when the screen sliding operation is in contact with and leaves;
and comparing and judging the pressing points in the contact and the separation with the corresponding calibration points respectively to obtain the inspection information.
5. The method of claim 1, wherein performing a sweat simulation of the touch screen slider during the testing process comprises:
in the inspection process, liquid dropping operation is carried out on a touch screen sliding screen contact;
and adjusting the dropping time and the dropping liquid amount according to the preset sweat amount.
6. A touch screen durability inspection apparatus applied to a touch screen durability system, comprising:
the positioning device is used for positioning the touch screen;
the pressing device is used for performing finger simulation pressing on the touch screen;
the driving device is in driving connection with the pressing device and is used for driving the pressing device to complete screen sliding operation of the touch screen; and
the vacuum liquid dropping device is used for carrying out sweat simulation on the touch screen sliding screen contact;
and the driving device and the vacuum liquid dropping device are in control connection with the processor so as to realize automatic inspection of the touch screen.
7. The touch screen endurance testing apparatus of claim 6, wherein the pressing device includes a slider contact and a weight disposed above the slider contact for controlling a pressing force of the slider contact.
8. The touch screen durability test device according to claim 7, wherein the driving device comprises a transmission mechanism and a lifting mechanism, the transmission mechanism is in driving connection with the sliding screen contact and is used for driving the sliding screen contact to perform sliding screen operation; the lifting mechanism is connected with the counterweight piece in a lifting mode and used for completing lifting and dropping of the counterweight piece on the sliding screen contact.
9. The touch screen durability inspection apparatus according to claim 4, wherein the vacuum dropping device includes a gas control valve, a timing mechanism, and a dropping mechanism; the control valve, the timing mechanism and the liquid dropping mechanism are in control connection, and the liquid dropping mechanism completes control of liquid dropping amount and liquid dropping time through the control valve and the timing mechanism.
10. The touch screen durability inspection apparatus according to claim 4, further comprising a sealing plate disposed between the positioning means and the driving means for sealing the touch panel at the time of inspection.
11. A touch screen durability inspection system is characterized by comprising a touch screen durability inspection device and a processor; the processor is in control connection with the touch screen durability testing equipment, and the following steps are realized through the processor:
calibrating a durability test coordinate of the touch screen;
performing screen sliding inspection and monitoring on the touch screen according to the calibration coordinates and preset inspection times;
in the detection process, sweat simulation is carried out on the touch screen;
and receiving screen sliding inspection information of the touch screen to obtain an inspection result.
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| CN113515421A (en) * | 2021-09-13 | 2021-10-19 | 江苏纳帝电子科技有限公司 | High definition liquid crystal touch screen touch durability test device |
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| CN114813077A (en) * | 2022-04-19 | 2022-07-29 | 河海大学 | Multifunctional key endurance test system and test machine |
| US11983363B1 (en) * | 2023-02-09 | 2024-05-14 | Primax Electronics Ltd. | User gesture behavior simulation system and user gesture behavior simulation method applied thereto |
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| US11983363B1 (en) * | 2023-02-09 | 2024-05-14 | Primax Electronics Ltd. | User gesture behavior simulation system and user gesture behavior simulation method applied thereto |
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