Touch simulation test device and system
By placing the signal transmitting device outside the test space in the touch simulation test device and using the internal signal processing device to control the grounding or floating of the touch simulation device, the influence of the test environment on the results is solved, and more accurate touch screen testing is achieved.
Patent Information
- Application Number
- CN202520322542.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-26
- Publication Date
- 2026-01-20
- Estimated Expiration
- 2035-02-26
AI Technical Summary
Existing touch screen testing equipment is easily affected by the testing environment, resulting in inaccurate test results.
The signal transmitting device is placed outside the test space, and the signal processing device is placed inside. The signal processing device selectively controls the grounding or floating of the touch simulation device to simulate the capacitance change of the contact point on the touch screen.
This effectively avoids the influence of the testing environment on the testing equipment and improves the accuracy of the test results.
Smart Images
Figure CN223815551U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present disclosure relates to the technical field of testing, in particular to a touch simulation testing device and system. BACKGROUND
[0002] Electronic devices, such as automobiles and consumer electronics, need to be tested, which usually involves testing of touch screens, including electromagnetic compatibility testing and environmental reliability testing.
[0003] In the related art, the testing device for the touch screen is easily affected by the testing environment, resulting in inaccurate test results. UTILITY MODEL CONTENT
[0004] To overcome the problems in the related art, the present disclosure provides a touch simulation testing device and system, which sets the signal sending device 1, which is easily affected by the testing environment, outside the testing space 2, and sets the signal processing device 3 inside the testing space 2 to receive signals and selectively ground or suspend the first end of the touch simulation device 4, so that the first end of the touch simulation device 4 is repeatedly grounded, so that the capacitance of the contact point on the touch screen 5 is constantly changed to simulate the capacitive touch operation on the contact point on the touch screen 5. Thus, the influence of the testing environment on the entire touch simulation testing device is avoided, and a more accurate testing device can be obtained.
[0005] According to a first aspect of an embodiment of the present disclosure, a touch simulation testing device is provided, comprising:
[0006] a signal sending device 1, which is arranged outside a testing space 2;
[0007] a signal processing device 3, which is arranged inside the testing space 2, a first end of the signal processing device 3 is in communication connection with the signal sending device 1, and a second end of the signal processing device 3 is grounded;
[0008] a touch simulation device 4, which is arranged inside the testing space 2, a first end of the touch simulation device 4 is connected with a third end of the signal processing device 3, and a second end of the touch simulation device 4 is used to contact a contact point on a touch screen 5 inside the testing space 2;
[0009] The signal processing device 3 is used to selectively ground or suspend the first end of the touch simulation device 4 based on the signal obtained by the first end, so as to simulate the capacitive touch operation on the contact point on the touch screen 5.
[0010] Optionally, the testing space 2 is a temperature chamber;
[0011] The signal sending device 1 comprises a signal generator 11;
[0012] The signal processing device 3 comprises a control module, a first end of the control module is connected with the signal generator 11, a second end of the control module is grounded, and a third end of the control module is connected with a first end of the touch analog device 4.
[0013] Optionally, the test space 2 is a darkroom.
[0014] The signal sending device 1 comprises a signal generator 11 and an analog optical coupling sender 12, an output end of the signal generator 11 is connected with an input end of the analog optical coupling sender 12.
[0015] The signal processing device 3 comprises an analog optical coupling receiver 31 and a control module, an output end of the analog optical coupling sender 12 is connected with an input end of the analog optical coupling receiver 31, a first end of the control module is connected with an output end of the analog optical coupling receiver 31, a second end of the control module is grounded, and a third end of the control module is connected with a first end of the touch analog device 4.
[0016] Optionally, the control module is a voltage control switch 32.
[0017] The signal generator 11, the analog optical coupling sender 12 and the analog optical coupling receiver 31 all comprise M groups of signal transmission pins, the voltage control switch 32, the touch analog device 4 and the contact point all have M, and M is a positive integer.
[0018] One group of signal transmission pins corresponds to one voltage control switch 32, one touch analog device 4 and one contact point.
[0019] Optionally, one group of signal transmission pins of the signal generator 11 comprises one output positive signal pin and one output negative signal pin, one group of signal transmission pins of the analog optical coupling sender 12 and the analog optical coupling receiver 31 both comprise one input positive signal pin, one input negative signal pin, one output positive signal pin and one output negative signal pin, and a first end of the voltage control switch 32 comprises one input positive signal pin and one input negative signal pin.
[0020] The input positive signal pin and the input negative signal pin of one group of signal transmission pins of the analog optical coupling sender 12 are respectively connected with the output positive signal pin and the output negative signal pin of the same group of signal transmission pins of the signal generator 11.
[0021] The input positive signal pin and the input negative signal pin of the group of signal transmission pins of the analog optocoupler receiver 31 are connected with the output positive signal pin and the output negative signal pin of the same group of signal transmission pins of the analog optocoupler transmitter 12 respectively.
[0022] The input positive signal pin and the input negative signal pin of the voltage control switch 32 are connected with the output positive signal pin and the output negative signal pin of the same group of signal transmission pins of the analog optocoupler receiver 31 respectively.
[0023] Optionally, the voltage control switch 32 comprises a switch component 321, the second end of the voltage control switch 32 is led out from the first end of the switch component 321, and the third end of the voltage control switch 32 is led out from the second end of the switch component 321.
[0024] The switch component 321 is used to turn on or turn off the first end of the touch simulation device 4 and the second end of the voltage control switch 32, so as to simulate the capacitive touch operation on the contact point on the touch screen 5.
[0025] Optionally, the touch simulation device 4 is a conductive suction cup.
[0026] Optionally, the period of the pulse signal transmitted by the signal sending device 1 ranges from 3s to 5s, and the pulse width of the pulse signal is greater than 200ms.
[0027] According to a second aspect of the embodiments of the present disclosure, a touch simulation test system is provided, which comprises the touch simulation test device of the first aspect of the embodiments of the present disclosure, and a touch screen 5 arranged in the test space 2, and the output end of the touch simulation test device is in contact with the contact point on the touch screen 5.
[0028] The technical solutions provided by the embodiments of the present disclosure can have the following beneficial effects:
[0029] The touch simulation test device comprises a signal sending device 1, a signal processing device 3 and a touch simulation device 4, the signal processing device 3 is arranged in the test space 2, the first end of the signal processing device 3 is in communication connection with the signal sending device 1, the second end of the signal processing device 3 is grounded, the touch simulation device 4 is arranged in the test space 2, the first end of the touch simulation device 4 is connected with the third end of the signal processing device 3, and the second end of the touch simulation device 4 is used to contact the contact point on the touch screen 5 in the test space 2.
[0030] The signal sending device 1 which is easily affected by the test environment is arranged outside the test space 2, and the signal processing device 3 is arranged inside the test space 2 to receive the signal and selectively ground or suspend the first end of the touch simulation device 4, so that the first end of the touch simulation device 4 is repeatedly grounded to change the capacitance of the contact point on the touch screen 5 to simulate the capacitive touch operation on the contact point on the touch screen 5. Thus, the influence of the test environment on the entire touch simulation test device is avoided, and more accurate test device can be obtained.
[0031] It should be understood that the foregoing general description and the following detailed description are only exemplary and explanatory and are not restrictive of the disclosure. BRIEF DESCRIPTION OF DRAWINGS
[0032] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and serve to explain the principles of the disclosure, in which:
[0033] Figure 1 is a structural schematic diagram of a touch simulation test device according to an exemplary embodiment.
[0034] Figure 2 is a structural schematic diagram of another touch simulation test device according to an exemplary embodiment.
[0035] Figure 3 is a structural schematic diagram of still another touch simulation test device according to an exemplary embodiment.
[0036] BRIEF DESCRIPTION OF DRAWINGS
[0037] 1, signal sending device; 11, signal generator; 12, analog optocoupler transmitter; 2, test space; 3, signal processing device; 31, analog optocoupler receiver; 32, voltage-controlled switch; 321, switch assembly; 4, touch simulation device; 5, touch screen. DETAILED DESCRIPTION
[0038] The exemplary embodiments will be described in detail herein with reference to the attached drawings. In the following description, the same numbers are used to designate the same elements, unless otherwise indicated. The embodiments described in the following exemplary embodiments are not representative of all embodiments consistent with the disclosure. Rather, they are merely examples of devices and methods consistent with some aspects of the disclosure as detailed in the appended claims.
[0039] Electronic devices, such as automobiles and consumer electronics, need to be tested, which usually involves testing of touch screens, including electromagnetic compatibility testing and environmental reliability testing, etc.
[0040] In the related art, for the test device for the touch screen, for example, through the pneumatic device such as the air cylinder to realize the reciprocating motion by cooperating with the compressed air, the device attached with the simulated skin is perpendicular to the touch screen, the function of the point press is simulated, or the external simulation point press device composed of the signal transmitter and the conductive suction cup is easily affected by the test environment, so that the test result is not accurate enough.
[0041] Figure 1 is a structural schematic diagram of a touch simulation test device according to an exemplary embodiment, as Figure 1 shown, the touch simulation test device comprises:
[0042] The signal sending device 1 is arranged outside the test space 2. The test space 2 can be a sealed space, for example, a greenhouse or a darkroom, for performing environmental reliability test or electromagnetic compatibility test. The signal sending device 1 can be used to send pulse signals.
[0043] The signal processing device 3 is arranged inside the test space 2. The first end of the signal processing device 3 is in communication connection with the signal sending device 1, so as to be able to receive the pulse signals sent by the signal sending device 1 and perform corresponding control processing. The second end of the signal processing device 3 is grounded, specifically, a large piece of metal can be connected to the second end of the signal processing device 3.
[0044] The touch simulation device 4 is arranged inside the test space 2. The first end of the touch simulation device 4 is connected with the third end of the signal processing device 3. The second end of the touch simulation device 4 is used to contact the contact point on the touch screen 5 inside the test space 2. The touch simulation device 4 can be a conductive suction cup.
[0045] The signal processing device 3 is used to selectively ground or suspend the first end of the touch simulation device 4 based on the pulse signals obtained by the first end, so that the first end of the touch simulation device 4 is repeatedly grounded, so as to change the capacitance of the contact point on the touch screen 5, to simulate the capacitive touch operation on the contact point on the touch screen 5.
[0046] In the embodiment, the signal sending device 1 which is easily affected by the test environment is arranged outside the test space 2. Inside the test space 2, the signal processing device 3 is arranged to receive the signal and selectively ground or suspend the first end of the touch simulation device 4, so that the first end of the touch simulation device 4 is repeatedly grounded, so as to change the capacitance of the contact point on the touch screen 5, to simulate the capacitive touch operation on the contact point on the touch screen 5. Thus, the influence of the test environment on the whole touch simulation test device is avoided, and a more accurate test device can be obtained.
[0047] In a possible implementation, the test space 2 can be a temperature chamber, which can be used for environmental reliability test.
[0048] The signal sending device 1 can comprise a signal generator 11, which is used for sending a pulse signal.
[0049] The signal processing device 3 can comprise a control module, a first end of the control module being connected with the signal generator 11, a second end of the control module being grounded, and a third end of the control module being connected with a first end of the touch simulation device 4. The control module can selectively ground or suspend the first end of the touch simulation device 4 based on the pulse signal obtained by the first end, so that the first end of the touch simulation device 4 is repeatedly grounded, so as to change the capacitance of the contact point on the touch screen 5, and simulate the capacitive touch operation on the contact point on the touch screen 5. Thus, the environmental reliability test in the temperature chamber can be realized.
[0050] In a possible implementation, the test space 2 can be a darkroom, which can be used for electromagnetic compatibility test.
[0051] The signal sending device 1 can comprise a signal generator 11 and an analog optical coupling transmitter 12, an output end of the signal generator 11 being connected with an input end of the analog optical coupling transmitter 12; the signal processing device 3 comprises an analog optical coupling receiver 31 and a control module, an output end of the analog optical coupling transmitter 12 being connected with an input end of the analog optical coupling receiver 31, a first end of the control module being connected with an output end of the analog optical coupling receiver 31, a second end of the control module being grounded, and a third end of the control module being connected with the first end of the touch simulation device 4.
[0052] The signal generator 11 generates a pulse signal, and converts the pulse signal into an optical signal through the analog optical coupling transmitter 12. The analog optical coupling transmitter 12 and the analog optical coupling receiver 31 can be connected through an optical fiber, so that the optical signal is transmitted into the analog optical coupling receiver 31 in the darkroom through the optical fiber, and then converted into a pulse signal through the analog optical coupling receiver 31 and transmitted to the control module. The control module selectively grounds or suspends the first end of the touch simulation device 4 based on the pulse signal, so that the first end of the touch simulation device 4 is repeatedly grounded, so as to change the capacitance of the contact point on the touch screen 5, and simulate the capacitive touch operation on the contact point on the touch screen 5.
[0053] Figure 2 is a structural schematic diagram of another touch simulation test device according to an example embodiment, Figure 3 is a structural schematic diagram of still another touch simulation test device according to an example embodiment, as Figure 2 and Figure 3 As shown in a possible implementation, the control module can be a voltage-controlled switch 32.
[0054] The signal generator 11, the analog optocoupler transmitter 12 and the analog optocoupler receiver 31 each include M groups of signal transmission pins, the voltage control switch 32, the touch simulation device 4 and the contact point each have M, M is a positive integer;
[0055] Among them, a group of signal transmission pins corresponds to one voltage control switch 32, one touch simulation device 4 and one contact point. In the case of M equal to 1, that is, single-point touch test is carried out, in the case of M greater than 1, then multi-point touch test is carried out. The pulse signal of the test of one contact point is transmitted through a group of transmission pins.
[0056] In a possible implementation, a group of signal transmission pins of the signal generator 11 includes an output positive signal pin and an output negative signal pin, a group of signal transmission pins of the analog optocoupler transmitter 12 and the analog optocoupler receiver 31 each includes an input positive signal pin, an input negative signal pin, an output positive signal pin and an output negative signal pin, and the first end of the voltage control switch 32 includes an input positive signal pin and an input negative signal pin.
[0057] The input positive signal pin and the input negative signal pin of a group of signal transmission pins of the analog optocoupler transmitter 12 are respectively connected with the output positive signal pin and the output negative signal pin of the same group of signal transmission pins of the signal generator 11.
[0058] The input positive signal pin and the input negative signal pin of a group of signal transmission pins of the analog optocoupler receiver 31 are respectively connected with the output positive signal pin and the output negative signal pin of the same group of signal transmission pins of the analog optocoupler transmitter 12.
[0059] The input positive signal pin and the input negative signal pin of the voltage control switch 32 are respectively connected with the output positive signal pin and the output negative signal pin of the same group of signal transmission pins of the analog optocoupler receiver 31.
[0060] In the embodiment, one pulse signal sent by the signal generator 11 includes a positive signal and a negative signal. The positive signal is output to the input positive signal pin of the analog optocoupler 31 through the output positive signal pin of the signal generator 11, and is output to the input positive signal pin of the voltage control switch 32 through the output positive signal pin of the analog optocoupler 31. The negative signal is output to the input negative signal pin of the analog optocoupler 31 through the output negative signal pin of the signal generator 11, and is output to the input negative signal pin of the voltage control switch 32 through the output negative signal pin of the analog optocoupler 31. One pulse signal is input and output by the same group of signal transmission pins. The voltage control switch 32 can determine whether the first end of the touch simulation device 4 is grounded or suspended according to the positive signal and the negative signal in the same pulse signal.
[0061] In a possible implementation, the voltage control switch 32 can include a switch component 321. The second end of the voltage control switch 32 is led out from the first end of the switch component 321, and the third end of the voltage control switch 32 is led out from the second end of the switch component 321. The switch component 321 is used to turn on or turn off the first end of the touch simulation device 4 and the second end of the voltage control switch 32 to simulate the capacitive touch operation on the contact point on the touch screen 5.
[0062] In the embodiment, after the voltage control switch 32 receives the pulse signal, the voltage control switch 32 can determine the opening and closing of the switch component 321 based on the voltage difference between the positive signal and the negative signal of the pulse signal to turn on or turn off the first end of the touch simulation device 4 and the second end of the voltage control switch 32. For example, when the voltage difference between the positive signal and the negative signal is greater than a voltage preset threshold, the switch component 321 is controlled to be closed to turn on the first end of the touch simulation device 4 and the second end of the voltage control switch 32, resulting in a larger capacitance of the corresponding contact point. When the voltage difference between the positive signal and the negative signal is less than or equal to the voltage preset threshold, the switch component 321 is controlled to be opened to turn off the first end of the touch simulation device 4 and the second end of the voltage control switch 32, resulting in a smaller capacitance of the corresponding contact point. Thus, the capacitive touch operation on the contact point on the touch screen 5 is simulated.
[0063] In a possible implementation, the period of the pulse signal sent by the signal sending device 1 ranges from 3s to 5s, and the pulse width of the pulse signal is greater than 200ms. In this way, the frequency and duration of the touch operation can be controlled, so that the touch screen 5 can be identified.
[0064] In a possible implementation, a touch simulation test system is also provided, which includes the touch simulation test device provided in the above embodiments, and the touch screen 5 arranged in the test space 2. The output end of the touch simulation test device is in contact with the contact point on the touch screen 5.
[0065] Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure. It is intended that the disclosure be construed as including any paterns of this disclosure which are within the spirit and broad scope of the appended claims. The specification and examples are to be construed as merely illustrative of the present disclosure and not limitative of the scope of the present disclosure as construed in accordance with the appended claims.
[0066] It is to be understood that the disclosure is not limited to the precise construction that has been described above and shown in the accompanying drawings, and that various modifications and changes can be made by those skilled in the art without departing from the scope of the disclosure. The scope of the disclosure is limited only by the appended claims.
Claims
1. A touch analog test device, comprising: The device comprises: a signal sending device (1) arranged outside a test space (2); a signal processing device (3) arranged inside the test space (2), a first end of the signal processing device (3) being in communication connection with the signal sending device (1), and a second end of the signal processing device (3) being grounded; a touch simulation device (4) arranged inside the test space (2), a first end of the touch simulation device (4) being connected with a third end of the signal processing device (3), and a second end of the touch simulation device (4) being used to contact a contact point on a touch screen (5) inside the test space (2); the signal processing device (3) is used to selectively ground or suspend the first end of the touch simulation device (4) based on a signal acquired by the first end, so as to simulate a capacitive touch operation on the contact point on the touch screen (5).
2. The touch simulation test device according to claim 1, wherein: the test space (2) is a temperature box; the signal sending device (1) comprises a signal generator (11); the signal processing device (3) comprises a control module, a first end of the control module being connected with the signal generator (11), a second end of the control module being grounded, and a third end of the control module being connected with the first end of the touch simulation device (4).
3. The touch simulation test device according to claim 1, wherein: the test space (2) is a darkroom; the signal sending device (1) comprises a signal generator (11) and an analog optical coupling transmitter (12), an output end of the signal generator (11) being connected with an input end of the analog optical coupling transmitter (12); the signal processing device (3) comprises an analog optical coupling receiver (31) and a control module, an output end of the analog optical coupling transmitter (12) being connected with an input end of the analog optical coupling receiver (31), a first end of the control module being connected with an output end of the analog optical coupling receiver (31), a second end of the control module being grounded, and a third end of the control module being connected with the first end of the touch simulation device (4).
4. The touch simulation testing apparatus according to claim 3, wherein, the control module is a voltage-controlled switch (32); the signal generator (11), the analog optical coupling transmitter (12) and the analog optical coupling receiver (31) each comprise M groups of signal transmission pins, the voltage-controlled switch (32), the touch simulation device (4) and the contact point each have M, and M is a positive integer; one group of signal transmission pins corresponds to one voltage-controlled switch (32), one touch simulation device (4) and one contact point.
5. The touch simulation test device according to claim 4, wherein: The signal transmission pin group of the signal generator (11) comprises an output positive signal pin and an output negative signal pin, the signal transmission pin group of the analog optocoupler transmitter (12) and the analog optocoupler receiver (31) each comprises an input positive signal pin, an input negative signal pin, an output positive signal pin and an output negative signal pin, and the first end of the voltage control switch (32) comprises an input positive signal pin and an input negative signal pin; The input positive signal pin and the input negative signal pin of the signal transmission pin group of the analog optocoupler transmitter (12) are connected to the output positive signal pin and the output negative signal pin of the same signal transmission pin group of the signal generator (11) respectively; The input positive signal pin and the input negative signal pin of the signal transmission pin group of the analog optocoupler receiver (31) are connected to the output positive signal pin and the output negative signal pin of the same signal transmission pin group of the analog optocoupler transmitter (12) respectively; The input positive signal pin and the input negative signal pin of the voltage control switch (32) are connected to the output positive signal pin and the output negative signal pin of the same signal transmission pin group of the analog optocoupler receiver (31) respectively. 6.The touch simulation test device according to claim 4, characterized in that, the voltage control switch (32) comprises a switch assembly (321), the second end of the voltage control switch (32) is led out from the first end of the switch assembly (321), and the third end of the voltage control switch (32) is led out from the second end of the switch assembly (321); the switch assembly (321) is used to turn on or turn off the first end of the touch simulation device (4) and the second end of the voltage control switch (32) to simulate the capacitive touch operation on the contact point on the touch screen (5).
7. The touch simulation testing apparatus according to any one of claims 1-5, wherein, The touch simulation device (4) is a conductive suction cup. 8.The touch simulation test device according to any one of claims 1-5, characterized in that, the period of the pulse signal sent by the signal sending device (1) ranges from 3s to 5s, and the pulse width of the pulse signal is greater than 200ms.
9. A touch analog test system, comprising: The touch simulation test device comprises the touch simulation test device according to any one of claims 1-8, and a touch screen (5) arranged in the test space (2), and the output end of the touch simulation test device is in contact with the contact point on the touch screen (5).