Touch Switch Detection System and Method

Abstract

The present invention provides a touch switch detection system and method. Among them, the system includes: a pressure detection unit for obtaining pressure information of a touch switch to be measured; a current detection unit connected to the touch switch to be measured, and the current detection unit is used to obtain current information of the touch switch to be measured; a driving unit connected to the pressure detection unit, and the driving unit is used to drive the pressure detection unit to move to the test point of the touch switch to be measured; a control unit respectively connected to the driving unit, the pressure detection unit and the current detection unit, and the control unit is used to control the driving unit to drive the pressure detection unit and is used to control the touch detection of the touch switch to be measured according to the pressure information and current information at the test point. The present invention can effectively avoid detection errors caused by differences in pressing force, thereby ensuring detection accuracy. In addition, it can also achieve automated testing.

Description

Technical Field

[0001] The present invention relates to the technical field of switch detection, and in particular to a touch switch detection system and a touch switch detection method. Background Art

[0002] As cars develop towards electrification and intelligence, the overall aesthetics, sense of technology and operating comfort of car cabin interiors are becoming more and more important. Among them, the smart touch switch integrates the main structure on a thin film, making the product more integrated and the design more concise. For example, the smart capacitive inductive touch switch does not require pressing traditional physical buttons, is easy to operate, can be used even with gloves, and is not affected by dry and humid weather, changes in human body resistance, etc., making it more convenient to use; it has high durability, because the touch switch does not have any mechanical parts, it will not wear out, and there is no subsequent maintenance cost; it is waterproof and dustproof, and has good stability. Its sensing part can be placed in any insulating layer to accurately detect the effective touch of the finger, ensuring the sensitivity, stability and reliability of the product, and it has waterproof and strong anti-interference capabilities.

[0003] However, smart touch switches still have technical difficulties such as feedback response and preventing misoperation. In terms of product testing, smart touch switches also lack corresponding effective testing methods. The existing testing methods have poor loading force accuracy and low efficiency, and cannot record data in real time for further analysis of product performance. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides a touch switch detection system, which can form a complete closed-loop control mode, effectively avoid detection errors caused by differences in pressing force, thereby ensuring detection accuracy. In addition, it can also realize automated testing and record detection data in real time.

[0005] The technical solution adopted by the present invention is as follows:

[0006] A touch switch detection system comprises: a pressure detection unit, the pressure detection unit being used to obtain pressure information of a touch switch to be tested; a current detection unit, the current detection unit being connected to the touch switch to be tested and being used to obtain current information of the touch switch to be tested; a driving unit, the driving unit being connected to the pressure detection unit and being used to drive the pressure detection unit to move to a test point of the touch switch to be tested; and a control unit, the control unit being respectively connected to the driving unit, the pressure detection unit and the current detection unit, the control unit being used to control the driving unit to drive the pressure detection unit, and being used to control touch detection of the touch switch to be tested according to the pressure information and current information of the test point.

[0007] According to an embodiment of the present invention, the touch switch to be tested is provided with a plurality of the test points, and the control unit controls the pressure detection unit to move to each test point of the touch switch to be tested, and the touch operation force generated is within a preset range.

[0008] According to an embodiment of the present invention, the pressure detection unit includes a pressure sensor and a pressure test copper bar. Among them, the pressure test copper bar is used to press the touch switch to be tested to simulate the touch process of the touch switch to be tested; the pressure sensor is used to obtain the pressure information of the touch switch to be tested during the simulated touch process.

[0009] According to an embodiment of the present invention, the current detection unit is a current collector, and the current collector is respectively connected to the touch switch to be tested and the control unit to obtain the current information of the touch switch to be tested during the simulated touch process.

[0010] According to an embodiment of the present invention, the driving unit includes a driving controller and a driving robot. Among them, the driving controller is respectively connected to the control unit and the driving robot, and the driving controller is used to drive the driving robot to act according to the displacement control instruction of the control unit; the driving robot is connected to the pressure detection unit, and the driving robot is used to drive the pressure detection unit to move to the test point of the touch switch to be tested.

[0011] According to an embodiment of the present invention, the driving robot is a four-axis horizontal articulated robot, and the driving robot moves to any position according to the displacement control instruction.

[0012] According to an embodiment of the present invention, the driving robot is a six-axis horizontal articulated robot, and the driving robot moves to any position according to the displacement control instruction.

[0013] According to an embodiment of the present invention, the control unit is used to control the driving robot to drive the pressure test copper bar to move to the test point of the touch switch to be tested, and adjust the displacement of the pressure test copper bar according to the pressure information and current information of the test point, so as to control the touch operation force generated when the pressure test copper bar moves to each test point of the touch switch to be tested to be within a preset range.

[0014] A touch switch detection method includes the following steps: driving the pressure detection unit to move to the test point of the touch switch to be tested through the driving unit; obtaining the pressure information of the touch switch to be tested through the pressure detection unit; obtaining the current information of the touch switch to be tested through the current detection unit; and controlling the touch accuracy detection of the touch switch to be tested by the control unit according to the pressure information and current information of the test point.

[0015] According to an embodiment of the present invention, the touch switch to be tested is provided with a plurality of the test points, and the control unit controls the touch operating force generated when the pressure detection unit moves to the test point of each touch switch to be tested to be within a preset range.

[0016] The beneficial effects of the present invention are as follows:

[0017] (1), The present invention can form a complete closed-loop control mode, which can effectively avoid detection errors caused by differences in pressing force, thereby ensuring detection accuracy. In addition, it can also achieve automated testing;

[0018] (2), The present invention has strong flexibility and a wide adaptation range, and can be applied to products with different required pressure values and precise pressure control. Description of the Drawings

[0019] Figure 1 It is a block diagram of the touch switch detection system according to an embodiment of the present invention;

[0020] Figure 2 It is a block diagram of the touch switch detection system according to an embodiment of the present invention;

[0021] Figure 3 It is a detection process diagram of the touch switch detection system according to an embodiment of the present invention;

[0022] Figure 4 It is a flowchart of the touch switch detection method according to an embodiment of the present invention. Detailed Embodiments

[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0024] Figure 1 It is a block diagram of the touch switch detection system according to an embodiment of the present invention.

[0025] Such as Figure 1As shown in the figure, the touch switch detection system according to an embodiment of the present invention includes a pressure detection unit 10, a current detection unit 20, a driving unit 30, and a control unit 40. Among them, the pressure detection unit 10 is used to obtain the pressure information of the touch switch 100 to be tested; the current detection unit 20 is connected to the touch switch 100 to be tested, and the current detection unit 20 is used to obtain the current information of the touch switch 100 to be tested; the driving unit 30 is connected to the pressure detection unit 10, and the driving unit 30 is used to drive the pressure detection unit 10 to move to the test point of the touch switch 100 to be tested; the control unit 40 is respectively connected to the driving unit 30, the pressure detection unit 10, and the current detection unit 20, and the control unit 40 is used to control the driving unit 30 to drive the pressure detection unit 10, and is used to control the touch detection of the touch switch 100 to be tested according to the pressure information and current information at the test point.

[0026] Specifically, the control unit 40 can control the pressure detection unit 10 to move to the test point of the touch switch 100 to be tested through the driving unit 30, and adjust the displacement of the pressure detection unit 10 according to the pressure information and current information at the test point to control the touch detection of the touch switch 100 to be tested. Thus, a complete closed-loop control mode can be formed, and the detection error caused by the difference in pressing force can be effectively avoided, thereby ensuring the detection accuracy.

[0027] In an embodiment of the present invention, as Figure 2 shown, the pressure detection unit 10 may include a pressure sensor 101 and a pressure test copper bar 102. Among them, the pressure test copper bar 102 can be used to press the touch switch 100 to be tested to simulate the touch process of the analog switch to be tested; the pressure sensor 101 can be used to obtain the pressure information of the touch switch 100 to be tested during the simulated touch process. For example, the pressure sensor 101 can be a high-precision pressure sensor. Thus, the accuracy of the pressure information of the touch switch 100 to be tested during the collected simulated touch process can be ensured, thereby reducing the detection error.

[0028] Furthermore, as Figure 2 shown, the pressure sensor 101, such as a high-precision pressure sensor, can also be connected to the control unit 40 through RS232 to send the pressure information of the touch switch 100 to be tested during the collected simulated touch process to the control unit 40.

[0029] In an embodiment of the present invention, the current detection unit 20 can be a current collector, and the current collector can be respectively connected to the touch switch 100 to be tested and the control unit 40 to obtain the current information of the touch switch 100 to be tested during the simulated touch process.

[0030] Furthermore, as Figure 2As shown, the current detection unit 20, such as a current collector, can be connected to the control unit 40 via RS232 to send the current information of the touch switch 100 to be measured during the analog touch process to the control unit 40.

[0031] In an embodiment of the present invention, as Figure 2 shown, the driving unit 30 may include a driving controller 301 and a driving robot 302. Among them, the driving controller 301 can be respectively connected to the control unit 40 and the driving robot 302. The driving controller 301 can be used to drive the driving robot 302 to act according to the displacement control instruction of the control unit 40; the driving robot 302 can be connected to the pressure detection unit 10, and the driving robot 302 can be used to drive the pressure detection unit 10 to move to the test position of the touch switch 100 to be measured.

[0032] Furthermore, as Figure 2 shown, the driving controller 301 can be connected to the control unit 40 via Ethernet to receive the displacement control instruction sent by the control unit 40, that is, the displacement information of the driving robot 302.

[0033] Furthermore, as Figure 2 shown, the driving robot 302 may further include a plurality of servo motors 200 to achieve multi-axis control of the driving robot 302, so that it can move to any position according to the displacement control instruction. Among them, the driving robot 302 can be a four-axis horizontal articulated robot or a six-axis horizontal articulated robot. In the present invention, a four-axis horizontal articulated robot is selected for illustration.

[0034] In an embodiment of the present invention, the touch switch 100 to be measured may be provided with a plurality of test positions, and the control unit 40 can control the pressure detection unit 10 to move to each test position of the touch switch 100 to be measured so that the touch operation force generated is within a preset range. Among them, the preset range of the touch operation force generated at each test position of the touch switch 100 to be measured can be (4 ± 0.8) N.

[0035] Specifically, the control unit 40 can be a PC terminal. The control unit 40, that is, the PC terminal, can be used to control the driving robot 302 to drive the pressure test copper bar 102 to move to the test position of the touch switch 100 to be measured, and can adjust the displacement of the pressure test copper bar 102 according to the pressure information and current information at the test position to control the touch operation force generated when the pressure test copper bar 102 moves to each test position of the touch switch 100 to be measured to be within a preset range.

[0036] Furthermore, as Figure 2As shown in the figure, the touch switch detection system according to an embodiment of the present invention may further include a pressure sensor data display unit 50, a first power supply unit 60, and a second power supply unit 70. Among them, the pressure sensor data display unit 50 may be a digital display meter for the pressure sensor 101, and may be connected to the pressure sensor 101, such as a high-precision pressure sensor, to be used for real-time display of the pressure information of the touch switch 100 to be measured during the analog touch process collected by the pressure sensor 101, such as a high-precision pressure sensor; the first power supply unit 60 may be a programmable power supply, and may be connected to the touch switch 100 to be measured to output a stable voltage to supply power to the touch switch 100 to be measured; the second power supply unit 70 may be a regulated power supply, and may be respectively connected to the drive controller 301, the control unit 40, and the pressure sensor data display unit 50 to output a stable voltage to supply power to the drive controller 301, the control unit 40, and the pressure sensor data display unit 50.

[0037] Based on the above structure, the touch switch detection system of the present invention can be constituted. Next, the detection process of the touch switch detection system of the present invention will be specifically described in conjunction with Figure 3 the specific detection process of the touch switch detection system of the present invention will be elaborated.

[0038] As Figure 3 shown, the detection process of the touch switch detection system of the present invention includes the following steps:

[0039] S01, power on and start. The second power supply unit 70, that is, the regulated power supply outputs a stable power supply to be connected to the drive controller 301, the control unit 40, and the pressure sensor data display unit 50 to output a stable voltage to supply power to the drive controller 301, the control unit 40, and the pressure sensor data display unit 50. Furthermore, the control unit 40, such as a PC terminal, sends an electrical signal to the first power supply unit 60, that is, the programmable power supply, to control the first power supply unit 60, that is, the programmable power supply, to output a stable voltage to supply power to the touch switch 100 to be measured;

[0040] S02, the control unit 40, that is, the PC terminal receives a detection instruction, that is, a detection of the number of presses and a displacement control instruction, and then runs an automated test;

[0041] S03, the drive unit 30, that is, the drive controller 301 and the drive robot 302 are initialized, and then a pressing operation is performed, that is, the pressure test copper bar 102 in the drive pressure detection unit 10 is moved to the test point of the touch switch 100 to be measured;

[0042] S04, the drive unit 30 feeds back the in-place information, that is, after the drive unit 30 controls the pressure test copper bar 102 in the drive pressure detection unit 10 to move to the test point of the touch switch 100 to be measured according to the displacement control instruction, it feeds back the in-place information to the control unit 40, that is, the PC terminal;

[0043] S05, Obtain the pressure information and current information of the test point. That is, after the control unit 40, i.e., the PC terminal, receives the in-place information, the pressure sensor 101 in the pressure detection unit 10 and the current detection unit 20, i.e., the current collector, are used to obtain the pressure information and current information of the test point of the switch of the module to be tested respectively;

[0044] S06, The control unit 40, i.e., the PC terminal, determines the result of the touch detection based on the pressure information and current information of the test point of the switch of the module to be tested, and records the detection result;

[0045] S07, Judge whether the touch detection of the touch switch 100 to be tested is qualified according to the product standard of the touch switch. If so, execute step S08; if not, execute step S09;

[0046] S08, Judge whether the number of detection presses is completed. If so, execute step S09; if not, execute step S03;

[0047] S09, Output the detection report.

[0048] More specifically, the control unit 40, i.e., the PC terminal, can control the pressure test copper bar 102 in the pressure detection unit 10 to reach the horizontal position of the test point of the touch switch 100 to be tested, and can set the horizontal coordinates of the test point as (X, Y). Then, it can control the driving robot 302 to move downward along the Z axis, so that the pressure test copper bar 102 below the Z axis of the driving robot 302 presses downward on the test point of the touch switch 100 to be tested, and the pressure test copper bar 102 contacts the touch panel of the touch switch 100 to be tested to achieve the touch effect; Then, the vertical coordinates of the Z axis of the driving robot 302 can be adjusted through the pressure information, i.e., the pressure value, fed back by the pressure sensor 101 in the pressure detection unit 10, so that the pressing force between the pressure test copper bar 102 and the touch panel of the touch switch 100 to be tested meets the product test technical requirements, thereby determining the coordinate (X, Y, Z) of the test point required for the touch panel detection of the touch switch 100 to be tested. Among them, adjusting the Z-axis pressure value can control the surface force of the product assembly to be greater than 200N, and the touch operating force is within the range of (4 ± 0.8)N.

[0049] Furthermore, through the above-mentioned pre-determined parameters, the touch points (X, Y, Z) can be set in the program script of the control unit 40, i.e., the PC terminal, and data such as the distance, acceleration, pressing time, and number of presses between the Z axis of the driving robot 302 and the product can be set with reference to the product test technical requirements; In addition, when the control unit 40, i.e., the PC terminal, executes the automation script to control the pressure test copper bar 102 to contact the touch panel of the touch switch 100 to be tested, that is, when the Z axis of the driving robot 302 reaches the test point, the driving robot 302 can send an in-place signal to the control unit 40, i.e., the PC terminal, through the RS-232 interface.

[0050] Further, after the driving robot 302 is in place, that is, after the pressure test copper bar 102 reaches the test point of the touch panel of the touch switch 100 to be tested, the control unit 40, that is, the PC terminal, can collect pressure information and current information through the pressure sensor 101 and the current detection unit 20, that is, the current collector respectively, and analyze whether the collected pressure information and current information meet the conditions during the normal operation of the product, generate a test result, and the program records the test result and outputs a test report.

[0051] The beneficial effects of the present invention are as follows:

[0052] (1) The present invention can form a complete closed-loop control mode, which can effectively avoid detection errors caused by differences in pressing force, thereby ensuring detection accuracy. In addition, it can also achieve automated testing;

[0053] (2) The present invention has strong flexibility and a wide range of adaptability, and can be applied to products with different required pressure values and precise pressure control.

[0054] Based on the touch switch detection system of the above embodiment, the present invention also proposes a touch switch detection method.

[0055] As Figure 4 shown, the touch switch detection method of the embodiment of the present invention includes the following steps:

[0056] S1, driving the pressure detection unit to move to the test point of the touch switch to be tested through the driving unit;

[0057] S2, obtaining the pressure information of the touch switch to be tested through the pressure detection unit;

[0058] S3, obtaining the current information of the touch switch to be tested through the current detection unit;

[0059] S4, controlling the touch accuracy detection of the touch switch to be tested by the control unit according to the pressure information and current information at the test point.

[0060] In an embodiment of the present invention, the touch switch to be tested may be provided with multiple test points, and the control unit can control the pressure detection unit to move to each test point of the touch switch to be tested so that the touch operating force generated is within a preset range.

[0061] Other embodiments of the present invention can refer to the above touch switch detection system, and in order to avoid repetition, they will not be elaborated one by one here.

[0062] The beneficial effects of the present invention are as follows:

[0063] (1) The present invention can form a complete closed-loop control mode, which can effectively avoid detection errors caused by differences in pressing force, thereby ensuring detection accuracy. In addition, it can also achieve automated testing;

[0064] (2) The present invention has strong flexibility and a wide range of applications, and can be applied to products with different required pressure values and precise pressure control.

[0065] In the description of the present invention, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. The meaning of "a plurality" is two or more unless otherwise specifically defined.

[0066] In the present invention, unless otherwise clearly defined and limited, the terms such as "installed", "connected", "connected to", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0067] In the present invention, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on" the second feature can be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "below" and "beneath" the second feature can be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0068] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not have to be directed to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

Claims

1. A touch switch detection system, characterized in that, Including: A pressure detection unit configured to obtain pressure information of a touch switch to be measured; A current detection unit connected to the touch switch to be measured, the current detection unit being configured to obtain current information of the touch switch to be measured; A driving unit connected to the pressure detection unit, the driving unit being configured to drive the pressure detection unit to move to a test point of the touch switch to be measured; A control unit connected to the driving unit, the pressure detection unit and the current detection unit respectively, the control unit being configured to control the driving unit to drive the pressure detection unit, and to control touch detection of the touch switch to be measured according to the pressure information and current information at the test point; The touch switch to be measured is provided with a plurality of the test points, and the control unit controls the touch operation force generated when the pressure detection unit moves to each test point of the touch switch to be measured to be within a preset range; The pressure detection unit includes a pressure sensor and a pressure test copper bar. The pressure test copper bar is configured to press the touch switch to be measured to simulate a touch process of the touch switch to be measured; the pressure sensor is configured to obtain pressure information of the touch switch to be measured during the simulated touch process; The current detection unit is a current collector, and the current collector is connected to the touch switch to be measured and the control unit respectively to obtain current information of the touch switch to be measured during the simulated touch process.

2. The touch switch detection system according to claim 1, characterized in that, The driving unit includes a driving controller and a driving robot, where The driving controller is connected to the control unit and the driving robot respectively, and the driving controller is configured to drive the driving robot to act according to a displacement control instruction of the control unit; The driving robot is connected to the pressure detection unit, and the driving robot is configured to drive the pressure detection unit to move to a test point of the touch switch to be measured.

3. The touch switch detection system according to claim 2, characterized in that, The driving robot is a four-axis horizontal articulated robot, and the driving robot moves to any position according to the displacement control instruction.

4. The touch switch detection system according to claim 2, characterized in that, The driving robot is a six-axis horizontal articulated robot, and the driving robot moves to any position according to the displacement control instruction.

5. The touch switch detection system according to claim 3 or 4, characterized in that, The control unit is configured to control the driving robot to drive the pressure test copper bar to move to a test point of the touch switch to be measured, and to adjust the displacement of the pressure test copper bar according to the pressure information and current information at the test point, so as to control the touch operation force generated when the pressure test copper bar moves to each test point of the touch switch to be measured to be within a preset range.

6. A touch switch detection method based on the touch switch detection system according to any one of claims 1-5, characterized in that, Including the following steps: Driving the pressure detection unit to move to a test point of the touch switch to be measured through the driving unit; Obtaining pressure information of the touch switch to be measured through the pressure detection unit; Obtaining current information of the touch switch to be measured through the current detection unit; Controlling touch accuracy detection of the touch switch to be measured through the control unit according to the pressure information and current information at the test point.

7. The touch switch detection method according to claim 6, characterized in that, The touch switch to be tested is provided with a plurality of the test points, and the control unit controls the pressure detection unit to move to each test point of the touch switch to be tested, and the touch operation force generated is within a preset range.

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