Clamp and fingerprint module testing device and method

Abstract

The invention provides a clamp and a fingerprint module testing device and method.The clamp comprises a base and a clamping assembly movably arranged on the base, the clamping assembly comprises at least two clamping parts which can be close to or away from each other, and the opposite sides of the at least two clamping parts are each provided with a limiting part; the at least two limiting parts are encircled to form a limiting area with a variable range, so that the mobile terminals with different sizes can be flexibly adapted, and the universality is improved; and / or the structure ensures moderate clamping force to the mobile terminal, so that the mobile terminal can be effectively fixed, equipment damage caused by excessive clamping can be avoided, and the test safety is improved.

Description

Technical Field

[0001] The present application relates to the field of fingerprint module testing, and particularly relates to a fixture, a fingerprint module testing device and a method. Background Art

[0002] With the advantages of high security and convenient use, fingerprint recognition technology has gradually replaced traditional password input and identity verification methods and become an important means of identity authentication. As a core component, the performance of the fingerprint module directly affects the use experience and security of the device. Therefore, before the fingerprint module is put on the market, it must undergo strict tests to ensure that its recognition accuracy, response speed and stability meet the standards.

[0003] In the process of conceiving and implementing the present application, the inventors found that at least the following problems exist: fingerprint module testing devices usually adopt a host computer, an independent algorithm chip module and a fingerprint simulator module, and the overall cost is relatively high.

[0004] The foregoing description is provided to give general background information and does not necessarily constitute prior art. Summary of the Invention

[0005] In view of the above technical problems, the present application provides a fixture, a fingerprint module testing device and a method, which have high testing efficiency and / or low cost.

[0006] The present application provides a fixture for fixing a mobile terminal, including a base and a clamping component movably arranged on the base. The clamping component includes at least two clamping parts that can approach or move away from each other. Limiting parts are provided on one side of the at least two clamping parts facing each other, and the at least two limiting parts enclose a limiting area with a variable range.

[0007] Optionally, the clamping component further includes sliding shafts arranged at both ends of the base, first sliders movably installed on the sliding shafts, and movable parts arranged on the first sliders. The clamping parts are arranged on the movable parts.

[0008] Optionally, the first slider is configured to drive the movable part to move along a preset first direction.

[0009] Optionally, the clamping component further includes a first guide rail arranged on the movable part, and the at least two clamping parts are movably arranged on the first guide rail.

[0010] Optionally, the first guide rail is configured to enable the at least two clamping parts to move along a preset second direction.

[0011] The present application further provides a fingerprint module testing device, including any one of the above fixtures.

[0012] Optionally, the fingerprint module testing device further includes second guide rails disposed on both sides of the base of the clamping assembly, second sliders movably disposed on the second guide rails, and a testing assembly mounted on the second sliders. The second sliders are configured to drive the testing assembly to move in a second direction.

[0013] Optionally, the testing assembly includes a substrate mounted on the second slider, guide rods disposed at both ends of the substrate, a pressing rod movably mounted on the guide rods, and a fingerprint pressing head disposed on the pressing rod. The pressing rod is configured to drive the fingerprint pressing head to move in a preset third direction.

[0014] Optionally, the testing assembly further includes a top rod disposed at the top of the guide rod, a rotating lead screw screwed onto the top rod, and a connecting plate disposed at one end of the pressing rod away from the top rod. The rotating lead screw at least partially penetrates the top rod and is fixedly connected to the connecting plate.

[0015] Optionally, the fingerprint pressing head is movably mounted on the pressing rod, and the pressing rod is configured to move the fingerprint pressing head in a first direction.

[0016] Optionally, the fingerprint pressing head includes a side key pressing head, a back pressing head, and an optical pressing head.

[0017] The present application further provides a fingerprint module testing method, which uses the fingerprint module testing device described in any one of the above. The testing method includes the following steps: Provide a dummy finger with the fingerprint of the tester printed thereon; Establish a fingerprint database and import the fingerprint database into the mobile terminal; Place the mobile terminal on the fingerprint module testing device and clamp and fix the mobile terminal by moving the clamping portion; Cover the dummy finger on the fingerprint module of the mobile terminal, move the pressing rod and the fingerprint pressing head to make the fingerprint pressing head approach the fingerprint module of the mobile terminal, and then fix the fingerprint pressing head on the fingerprint module of the mobile terminal by operating the rotating lead screw; Provide a testing terminal, connect the testing terminal to the mobile terminal, and the testing terminal has a testing script built therein; Execute the testing script in the testing terminal.

[0018] As described above, by providing at least two clamping portions that can approach or move away from each other, the present application forms a limit area with a variable range by enclosing the two, which can flexibly adapt to mobile terminals of different sizes and improve versatility; and / or, this structure ensures an appropriate clamping force on the mobile terminal, which can not only effectively fix it but also avoid damage to the device caused by excessive clamping, thereby enhancing the testing safety. Description of the Drawings

[0019] The accompanying drawings here are incorporated into the specification and form a part of this specification, showing embodiments consistent with this application, and are used together with the specification to explain the principles of this application. To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, for those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0020] Figure 1 Schematic diagram of the hardware structure of a mobile terminal for implementing various embodiments of this application; Figure 2 Schematic diagram of the structure of a fixture shown according to an embodiment; Figure 3 Schematic diagram of the structure of a clamping portion shown according to an embodiment; Figure 4 Schematic diagram of a fingerprint module testing device shown according to an embodiment; Figure 5 Schematic diagram of the structure of a testing component shown according to an embodiment; Figure 6 Schematic diagram of the connection between a movable portion and a sliding shaft shown according to an embodiment.

[0021] The realization of the objectives of this application, functional features, and advantages will be further described in conjunction with the embodiments with reference to the accompanying drawings. Through the above-mentioned accompanying drawings, the clear embodiments of this application have been shown, and there will be more detailed descriptions later. These drawings and textual descriptions are not intended to limit the scope of the concept of this application in any way, but to illustrate the concept of this application to those skilled in the art by referring to specific embodiments. Detailed implementation manners

[0022] Exemplary embodiments will be described in detail here, and the examples are shown in the accompanying drawings. When the following description refers to the accompanying drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The implementation manners described in the following exemplary embodiments do not represent all implementation manners consistent with this application. On the contrary, they are merely examples of devices and methods consistent with some aspects of this application as detailed in the appended claims.

[0023] It should be noted that in this article, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising one..." does not exclude the existence of additional identical elements in the process, method, article or device comprising such element. Optionally, components, features, elements with the same name in different embodiments of the present application may have the same meaning or may have different meanings, and their specific meanings need to be determined based on their explanations in the specific embodiments or further in combination with the context in the specific embodiments.

[0024] It should be understood that although the terms first, second, third, etc. may be used herein to describe various information, such information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of this article, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Depending on the context, the word "if" as used herein may be interpreted as "when" or "while" or "in response to determining". Furthermore, as used herein, the singular forms "a", "an" and "the" are also intended to include the plural forms unless the context indicates otherwise. It should be further understood that the terms "comprise", "include" indicate the presence of the stated features, steps, operations, elements, components, items, kinds, and / or groups, but do not exclude the presence, occurrence or addition of one or more other features, steps, operations, elements, components, items, kinds, and / or groups. The terms "or", "and / or", "include at least one of the following" and the like used in this application may be interpreted inclusively, or mean any one or any combination. For example, "include at least one of the following: A, B, C" means "any one of the following: A; B; C; A and B; A and C; B and C; A and B and C", and again, "A, B or C" or "A, B and / or C" means "any one of the following: A; B; C; A and B; A and C; B and C; A and B and C". An exception to this definition only occurs when the combination of elements, functions, steps or operations is inherently mutually exclusive in some way.

[0025] Depending on the context, the words "if", "when" as used herein may be interpreted as "when" or "while" or "in response to determining" or "in response to detecting". Similarly, depending on the context, the phrase "if determined" or "if detecting (stated condition or event)" may be interpreted as "when determined" or "in response to determining" or "when detecting (stated condition or event)" or "in response to detecting (stated condition or event)".

[0026] It should be understood that the specific embodiments described herein are merely for explaining the present application and are not intended to limit the present application.

[0027] In the following description, suffixes such as "module", "component", or "unit" used to represent elements are only for the convenience of explaining the present application and have no specific meaning in themselves. Therefore, "module", "component", or "unit" can be used interchangeably.

[0028] The mobile terminal can be implemented in various forms. For example, the mobile terminal described in the present application may include intelligent terminals such as mobile phones, tablet computers, laptop computers, palmtop computers, personal digital assistants (PDAs), portable media players (PMPs), navigation devices, wearable devices, smart bracelets, pedometers, etc., as well as fixed terminals such as digital TVs and desktop computers.

[0029] In the following description, the mobile terminal will be taken as an example for illustration. Those skilled in the art will understand that, except for the elements specifically for mobile purposes, the structure according to the embodiments of the present application can also be applied to fixed-type terminals.

[0030] Please refer to Figure 1 , which is a schematic diagram of the hardware structure of a mobile terminal for implementing various embodiments of the present application. The mobile terminal 100 may include: an RF (Radio Frequency) unit 101, a WiFi module 102, an audio output unit 103, an A / V (audio / video) input unit 104, a sensor 105, a display unit 106, a user input unit 107, an interface unit 108, a memory 109, a processor 110, and a power supply 111, etc. Those skilled in the art can understand that Figure 1 the structure of the mobile terminal shown in

[0031] Next, in conjunction with Figure 1 each component of the mobile terminal will be specifically introduced: The radio frequency unit 101 can be used for receiving and transmitting information or signals during communication. Specifically, after receiving the downlink information from the base station, it is processed by the processor 110. Additionally, it sends the uplink data to the base station. Generally, the radio frequency unit 101 includes, but is not limited to, antennas, at least one amplifier, transceivers, couplers, low-noise amplifiers, duplexers, etc. Moreover, the radio frequency unit 101 can also communicate with the network and other devices via wireless communication. The above wireless communication can use any communication standard or protocol, including but not limited to GSM (Global System of Mobile communication), GPRS (General Packet Radio Service), CDMA2000 (Code Division Multiple Access 2000), WCDMA (Wideband Code Division Multiple Access), TD-SCDMA (Time Division-Synchronous Code Division Multiple Access), FDD-LTE (Frequency Division Duplexing - Long Term Evolution), TDD-LTE (Time Division Duplexing - Long Term Evolution), 5G, and 6G, etc.

[0032] WiFi belongs to short-range wireless transmission technology. The mobile terminal can help users send and receive emails, browse the web, and access streaming media through the WiFi module 102, providing users with wireless broadband Internet access. Although Figure 1 the WiFi module 102 is shown, it can be understood that it is not an essential component of the mobile terminal and can be omitted entirely within the scope of not changing the essence of the invention according to needs.

[0033] The audio output unit 103 can convert the audio data received by the radio frequency unit 101 or the WiFi module 102 or stored in the memory 109 into an audio signal and output it as sound when the mobile terminal 100 is in call signal reception mode, call mode, recording mode, voice recognition mode, broadcast reception mode, etc. Moreover, the audio output unit 103 can also provide audio output related to specific functions executed by the mobile terminal 100 (such as call signal reception sound, message reception sound, etc.). The audio output unit 103 can include speakers, buzzers, etc.

[0034] The A / V input unit 104 is used to receive audio or video signals. The A / V input unit 104 may include a Graphics Processing Unit (GPU) 1041 and a microphone 1042. The GPU 1041 processes the image data of still pictures or videos obtained by an image capture device (such as a camera) in a video capture mode or an image capture mode. The processed image frames can be displayed on the display unit 106. The image frames processed by the GPU 1041 can be stored in the memory 109 (or other storage media) or transmitted via the radio frequency unit 101 or the WiFi module 102. The microphone 1042 can receive sounds (audio data) via the microphone 1042 in operating modes such as a phone call mode, a recording mode, a voice recognition mode, etc., and can process such sounds into audio data. The processed audio (voice) data can be output in a format that can be transmitted to a mobile communication base station via the radio frequency unit 101 in the case of the phone call mode. The microphone 1042 can implement various types of noise cancellation (or suppression) algorithms to cancel (or suppress) the noise or interference generated during the reception and transmission of audio signals.

[0035] The mobile terminal 100 further includes at least one sensor 105, such as a light sensor, a motion sensor, and other sensors. Optionally, the light sensor includes an ambient light sensor and a proximity sensor. Optionally, the ambient light sensor can adjust the brightness of the display panel 1061 according to the brightness of the ambient light, and the proximity sensor can turn off the display panel 1061 and / or the backlight when the mobile terminal 100 is moved to the ear. As a type of motion sensor, the accelerometer sensor can detect the magnitude of acceleration in all directions (generally three axes), and can detect the magnitude and direction of gravity when stationary, and can be used in applications for identifying the posture of the mobile phone (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), vibration recognition related functions (such as a pedometer, tapping), etc.; as for other sensors that the mobile phone can also be configured with, such as a fingerprint sensor, a pressure sensor, an iris sensor, a molecular sensor, a gyroscope, a barometer, a hygrometer, a thermometer, an infrared sensor, etc., they will not be elaborated here.

[0036] The display unit 106 is used to display information input by the user or information provided to the user. The display unit 106 may include a display panel 1061, and the display panel 1061 can be configured in the form of a Liquid Crystal Display (LCD), an Organic Light-Emitting Diode (OLED), etc.

[0037] The user input unit 107 can be used to receive input numerical or character information and generate key signal inputs related to the user settings and function controls of the mobile terminal. Optionally, the user input unit 107 may include a touch panel 1071 and other input devices 1072. The touch panel 1071, also known as a touch screen, can collect touch operations of the user on or near it (such as operations of the user using any suitable object or accessory such as a finger or a stylus on or near the touch panel 1071), and drive the corresponding connection device according to a preset program. The touch panel 1071 can include two parts: a touch detection device and a touch controller. Optionally, the touch detection device detects the touch position of the user and detects the signal brought by the touch operation, and transmits the signal to the touch controller; the touch controller receives the touch information from the touch detection device, converts it into contact coordinates, and then sends it to the processor 110, and can receive and execute the commands sent by the processor 110. In addition, the touch panel 1071 can be implemented in multiple types such as resistive, capacitive, infrared, and surface acoustic wave. In addition to the touch panel 1071, the user input unit 107 may further include other input devices 1072. Optionally, the other input devices 1072 may include, but are not limited to, one or more of a physical keyboard, function keys (such as volume control keys, power on / off keys, etc.), a trackball, a mouse, a joystick, etc., and specific details are not limited here.

[0038] Optionally, the touch panel 1071 may cover the display panel 1061. After the touch panel 1071 detects a touch operation on or near it, it transmits the operation to the processor 110 to determine the type of touch event. Subsequently, the processor 110 provides a corresponding visual output on the display panel 1061 according to the type of touch event. Although in Figure 1 the touch panel 1071 and the display panel 1061 are implemented as two independent components to realize the input and output functions of the mobile terminal, in some embodiments, the touch panel 1071 and the display panel 1061 may be integrated to realize the input and output functions of the mobile terminal, and specific details are not limited here.

[0039] The interface unit 108 serves as an interface through which at least one external device can be connected to the mobile terminal 100. For example, the external device may include a wired or wireless headset port, an external power supply (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device with an identification module, an audio input / output (I / O) port, a video I / O port, a headset port, and so on. The interface unit 108 can be used to receive inputs from external devices (such as data information, power, etc.) and transmit the received inputs to one or more components within the mobile terminal 100 or can be used to transmit data between the mobile terminal 100 and external devices.

[0040] The memory 109 can be used to store software programs and various data. The memory 109 mainly includes a program storage area and a data storage area. Optionally, the program storage area can store an operating system, application programs required for at least one function (such as a sound playback function, an image playback function, etc.); the data storage area can store data created according to the use of the mobile phone (such as audio data, phone book, etc.). In addition, the memory 109 can include high-speed random access memory, and can also include non-volatile memory, such as at least one magnetic disk storage device, a flash memory device, or other volatile solid-state storage devices.

[0041] The processor 110 is the control center of the mobile terminal, connecting various parts of the entire mobile terminal through various interfaces and lines. By running or executing the software programs and / or modules stored in the memory 109, and calling the data stored in the memory 109, it executes various functions of the mobile terminal and processes data, thereby monitoring the mobile terminal as a whole. The processor 110 can include one or more processing units; preferably, the processor 110 can integrate an application processor and a modem processor. Optionally, the application processor mainly processes the operating system, user interface, and application programs, etc., and the modem processor mainly processes wireless communication. It can be understood that the above-mentioned modem processor may not be integrated into the processor 110.

[0042] The mobile terminal 100 can also include a power supply 111 (such as a battery) for powering each component. Preferably, the power supply 111 can be logically connected to the processor 110 through a power management system, so as to implement functions such as management of charging, discharging, and power consumption management through the power management system.

[0043] Although Figure 1 not shown, the mobile terminal 100 can also include a Bluetooth module, etc., which will not be elaborated here.

[0044] Based on the above mobile terminal hardware structure, each embodiment of the present application is proposed.

[0045] It can be understood that, for the convenience of description hereinafter, it is defined that the fingerprint module testing device has a first direction X, a second direction Y, and a third direction Z, and the first direction X, the second direction Y, and the third direction Z are different from each other. Exemplarily, the first direction X can be the width direction of the fingerprint module testing device, the second direction Y can be the length direction of the fingerprint module testing device, and the third direction Z can be the height direction of the fingerprint module testing device. The third direction Z is perpendicular to the first direction X and the second direction Y, and the second direction Y is perpendicular to the first direction X. In other embodiments, the coordinate system setting of the fingerprint module testing device can be flexibly set according to specific actual needs.

[0046] Figure 2It is a schematic structural diagram of a fixture shown according to an embodiment. Figure 3 It is a schematic structural diagram of the clamping portion 221 shown according to an embodiment. Please refer to Figure 2-3 In this embodiment, a fixture is provided. The fixture includes a base 21 and a clamping assembly 22 movably disposed on the base 21. The clamping assembly 22 includes at least two clamping portions 221 that can approach or separate from each other. Limiting portions 226 are formed on opposite sides of the clamping portions 221, and at least two limiting portions 226 enclose a limiting area with a variable range. It can be understood that when at least two clamping portions 221 approach each other, the range of the limiting area decreases to accommodate a mobile terminal with a smaller size; when at least two clamping portions 221 move away from each other, the range of the limiting area increases to accommodate a mobile terminal with a larger size.

[0047] Optionally, it is made of PMMA (polymethyl methacrylate) material. PMMA material has good transparency, wear resistance, and relatively high mechanical strength. It can be understood that when the clamping portions 221 approach each other and clamp the mobile terminal, the limiting portions 226 come into contact with the surface of the mobile terminal. Through the flexible characteristics of the PMMA material, a moderate buffering effect can be provided during the clamping process to absorb part of the pressure, thereby further reducing the risk of terminal deformation or damage caused by excessive clamping force.

[0048] Optionally, the outer surface of the limiting portion 226 is finely polished to ensure that its surface is smooth and free of burrs, so as to reduce the friction force when clamping the mobile terminal and avoid leaving indentations on the terminal housing.

[0049] Optionally, the clamping assembly 22 further includes sliding shafts 222 disposed at both ends of the base 21, first sliders 223 movably mounted on the sliding shafts 222, and an active portion 224 disposed on the first sliders 223. Optionally, the active portion 224 is mounted on the first slider 223. During use, the first slider 223 can move on the sliding shaft 222, thereby driving the clamping portion 221 to adjust its position along the first direction X.

[0050] Optionally, the sliding shaft 222 is made of stainless steel material, and the surface of the sliding shaft 222 is chrome-plated or nitrided to enhance wear resistance, reduce friction resistance, and improve service life.

[0051] Figure 6 It is a schematic connection diagram of the active portion 224 and the sliding shaft 222 shown according to an embodiment. As Figure 6As shown in the figure, in this embodiment, a convex portion 228 for mounting the sliding shaft 222 is formed on the base 21. The first slider 223 is correspondingly provided with a first chute 229A that cooperates with the sliding shaft 222 and a second chute 229B that cooperates with the convex portion 228, so that the slider maintains multi-point contact with the base 21 during the sliding process, forming an additional guiding structure, improving the stability of the slider during sliding, and reducing the shaking or deviation caused by the single sliding shaft 222.

[0052] Optionally, the clamping assembly 22 further includes a locking handle 227 threadedly connected to the first slider 223. After a suitable limiting area is formed in the clamping portion 221, the movement of the first slider 223 can be locked by the locking handle 227, avoiding the occurrence of minute displacements of the clamping portion 221 due to vibration or force during use, thereby maintaining the stable fixation of the clamping portion 221 on the mobile terminal.

[0053] Optionally, the clamping assembly 22 further includes a first guide rail 225 provided on the movable portion 224, and at least two clamping portions 221 are movably provided on the first guide rail 225. During use, the clamping portions 221 can slide along the first guide rail 225, so as to adjust the position in the second direction, making the size of the limiting area adapt to mobile terminals of different specifications.

[0054] Optionally, a locking nut is provided on the clamping portion 221, and the movement of the clamping portion 221 can be locked by the locking nut, thereby forming a stable limit on the mobile terminal.

[0055] The present application also provides a fingerprint module testing device, including the fixture in any of the above embodiments.

[0056] Figure 4 is a schematic diagram of the fingerprint module testing device shown according to the embodiment. Figure 5 is a schematic structural diagram of the testing component 33 shown according to the embodiment. Please refer to Figure 4-5 , in this embodiment, the fingerprint module testing device includes second guide rails 31 provided on both sides of the base 21 of the clamping assembly 22, second sliders 32 movably provided on the second guide rails 31, and a testing component 33 mounted on the second sliders 32. It can be understood that the second sliders 32 can slide along the second guide rails 31, driving the testing component 33 to move along the second direction Y to approach the mobile terminal fixed in the limiting area, so as to test the fingerprint module of the mobile terminal.

[0057] Optionally, the test component 33 includes a substrate 331 mounted on the second slider 32, guide rods 332 disposed at both ends of the substrate 331, a pressing rod 333 movably mounted on the guide rods 332, and a fingerprint pressing head 334 disposed on the pressing rod 333. During use, the pressing rod 333 can slide along the guide rods 332, driving the fingerprint pressing head 334 to move in the third direction Z to approach the mobile terminal fixed in the limiting area, so as to be in close contact with the fingerprint module of the mobile terminal. It can be understood that by adjusting the position of the pressing rod 333, the fingerprint pressing head 334 can apply different pressing forces or contact positions to simulate the real fingerprint pressing process, improving the accuracy and consistency of the test.

[0058] Optionally, movable holes matching the guide rods 332 are formed at both ends of the pressing rod 333, and the pressing rod 333 is sleeved on the guide rods 332 through the movable holes, so that it can slide along the guide rods 332.

[0059] Optionally, the surface of the guide rods 332 is plated with Teflon to reduce the friction coefficient, make the movement of the pressing rod 333 smoother, improve wear resistance, and reduce the accuracy loss caused by friction during long-term use. The Teflon coating can also play a role in rust prevention and anti-fouling, ensuring that the guide rods 332 maintain good performance in a high-intensity working environment.

[0060] Optionally, linear bearings are provided in the movable holes, and the guide rods 332 are installed in the linear bearings to guide the movement of the pressing rod 333. The linear bearings can greatly reduce the friction force, and at the same time can also limit the radial runout of the pressing rod 333 during movement, improving the movement accuracy.

[0061] Optionally, the test component 33 includes a top rod 335 disposed at the top of the guide rods 332. The rotating lead screw 336 is connected to the top rod 335 by means of a threaded connection. At least a part of the rotating lead screw 336 penetrates through the top rod 335 and is fixedly connected to the connecting plate 337.

[0062] Optionally, a manual knob or a driving device is provided at one end of the rotating lead screw 336. By rotating the knob or the driving device, the lead screw can be driven to rotate, thereby realizing the movement of the top rod 335 along the direction of the guide rods 332. The movement of the top rod 335 drives the connecting plate 337 to displace, so that the pressing rod 333 and the fingerprint pressing head 334 move in the third direction Y to approach the mobile terminal.

[0063] Optionally, the connecting plate 337 is made of aluminum alloy. Aluminum alloy has relatively high strength and hardness, which can ensure stability and no deformation when bearing the loads of the pressing rod 333 and the fingerprint pressing head 334; and / or; aluminum alloy has a relatively light weight, which can reduce the overall load of the test component 33 and improve the movement flexibility.

[0064] Optionally, the surface of the connecting plate 337 is anodized. After anodization, the aluminum alloy has good corrosion resistance and can maintain stable performance in high humidity or special environments.

[0065] Optionally, the fingerprint pressing head 334 is movably mounted on the pressing rod 333. The movement of the pressing rod 333 will drive the fingerprint pressing head 334 to be precisely adjusted in the first direction X to ensure that the fingerprint pressing head 334 can maintain good contact with the fingerprint module of the mobile terminal and achieve the alignment process during the test.

[0066] Optionally, the pressing rod 333 is provided with a third sliding groove 338. The top of the fingerprint pressing head 334 protrudes to form a third sliding block 339. The third sliding block 339 is installed in the third sliding groove 338 to form a sliding fit structure, providing guidance for the movement of the fingerprint pressing head 334.

[0067] Optionally, the third sliding groove 338 is subjected to precision polishing to reduce sliding friction and improve the movement accuracy of the fingerprint pressing head 334.

[0068] Optionally, the fingerprint pressing head 334 includes a side key pressing head, a back pressing head, and an optical pressing head, which is convenient for quickly replacing different types of pressing heads to meet different test requirements.

[0069] This application also provides a fingerprint module testing method, using the fingerprint module testing device in the above embodiment to test the mobile terminal.

[0070] The testing method includes the following steps: Provide a dummy finger with the fingerprint of the tester impressed thereon; Establish a fingerprint database and import the fingerprint database into the mobile terminal; Place the mobile terminal on the fingerprint module testing device, and clamp and fix the mobile terminal by moving the clamping portion 221 in the first direction X and / or the second direction Y and adjusting the range of the limiting area; Cover the dummy finger on the fingerprint module of the mobile terminal. Move the pressing rod 333 relative to the second guide rail 31 in the second direction Y to approach the mobile terminal, and make the fingerprint pressing head 334 move relative to the pressing rod 333 in the first direction X to align with the fingerprint module of the mobile terminal; Select the corresponding fingerprint pressing head 334 (side key pressing head or back pressing head or optical pressing head) according to the test requirements, and then move the pressing rod 333 to drive the fingerprint pressing head 334 to move in the third direction Z by operating the rotating lead screw 336 to fix the fingerprint pressing head 334 on the fingerprint module of the mobile terminal; Provide a test terminal, connect the test terminal to the mobile terminal, and the test terminal has a test script built-in; Execute the test script in the test terminal, and the mobile terminal realizes operations such as automatic fingerprint entry and unlocking and fingerprint deletion according to the script.

[0071] Optionally, the fingerprint database does not detect the finger lift event during fingerprint testing.

[0072] Optionally, the test script allows the mobile terminal to perform UI jumps between different interfaces (e.g., desktop -> settings -> security -> fingerprint).

[0073] Optionally, the fingerprint database is built into the local storage directory of the mobile terminal, such as vendor / lib64 and vendor / lib64 / hw. Optionally, it is enabled by changing the test property value of the xml in the mobile terminal or setting the test property through the command line.

[0074] Optionally, the mobile terminal is set to turn off the screen after 30 minutes and turn on the USB debugging function, and enter the desktop by powering on.

[0075] Optionally, it is only necessary to ensure close contact between the fingerprint press head 334 and the fingerprint module. Otherwise, if the downward pressure of the fingerprint press head 334 is too large, it may cause the mobile terminal to bulge downward and damage the motherboard structure, and may also damage the artificial finger, resulting in abnormalities during fingerprint entry and unlocking.

[0076] It can be understood that the above scenarios are only examples and do not constitute a limitation on the application scenarios of the technical solutions provided by the embodiments of the present application. The technical solutions of the present application can also be applied to other scenarios. For example, as is known to those of ordinary skill in the art, with the evolution of the system architecture and the emergence of new business scenarios, the technical solutions provided by the embodiments of the present application are equally applicable to similar technical problems.

[0077] The serial numbers of the embodiments of the present application above are only for description and do not represent the advantages or disadvantages of the embodiments.

[0078] The units in the devices of the embodiments of the present application can be combined, divided, and deleted according to actual needs.

[0079] In the present application, for the description of the same or similar term concepts, technical solutions, and / or application scenarios, generally only the first occurrence is described in detail. When it appears repeatedly later, for the sake of brevity, it is generally not described again. When understanding the technical solutions of the present application and other contents, for the same or similar term concepts, technical solutions, and / or application scenarios that are not described in detail later, reference can be made to their previous relevant detailed descriptions.

[0080] In the present application, the descriptions of the various embodiments have their own focuses. For the parts not described or recorded in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0081] The technical features of the technical solution of the present application can be combined arbitrarily. For the sake of concise description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered to be within the scope recorded in the present application.

[0082] The above are only the preferred embodiments of the present application, and do not limit the patent scope of the present application accordingly. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present application, or directly or indirectly applied in other related technical fields, shall be included in the patent protection scope of the present application by the same token.

Claims

1. A fixture for fixing a mobile terminal, characterized in that, It includes a base (21) and a clamping assembly (22) movably arranged on the base (21). The clamping assembly (22) includes at least two clamping parts (221) that can approach or move away from each other. On the opposite sides of the at least two clamping parts (221), limit parts (226) are respectively provided, and the at least two limit parts (226) enclose a limit area with a variable range.

2. The fixture according to claim 1, characterized in that, The clamping assembly (22) further includes sliding shafts (222) arranged at both ends of the base (21), first sliders (223) movably installed on the sliding shafts (222), and an active part (224) arranged on the first sliders (223). The clamping parts (221) are arranged on the active part (224), and the first sliders (223) are configured to drive the active part (224) to move along a preset first direction.

3. The fixture according to claim 2, wherein The clamping assembly (22) further includes a first guide rail (225) arranged on the active part (224). The at least two clamping parts (221) are movably arranged on the first guide rail (225), and the first guide rail (225) is configured to make the at least two clamping parts (221) move along a preset second direction.

4. A fingerprint module testing device, characterized in that, It includes the fixture according to any one of claims 1 to 3.

5. The fingerprint module testing device according to claim 4, wherein, The fingerprint module testing device further includes second guide rails (31) arranged on both sides of the base (21) of the clamping assembly (22), second sliders (32) movably arranged on the second guide rails (31), and a testing assembly (33) installed on the second sliders (32). The second sliders (32) are configured to drive the testing assembly (33) to move along the second direction.

6. The fingerprint module testing device according to claim 5, wherein The testing assembly (33) includes a substrate (331) installed on the second slider (32), guide rods (332) arranged at both ends of the substrate (331), a pressing rod (333) movably installed on the guide rods (332), and a fingerprint pressing head (334) arranged on the pressing rod (333). The pressing rod (333) is configured to drive the fingerprint pressing head (334) to move along a preset third direction.

7. The fingerprint module testing device according to claim 6, wherein The testing assembly (33) further includes a top rod (335) arranged at the top of the guide rod (332), a rotating lead screw (336) screwed on the top rod (335), and a connecting plate (337) arranged at one end of the pressing rod (333) away from the top rod (335). At least part of the rotating lead screw (336) penetrates through the top rod (335) and is fixedly connected with the connecting plate (337).

8. The fingerprint module testing device according to claim 7, wherein, The fingerprint pressing head (334) is movably installed on the pressing rod (333), and the pressing rod (333) is configured to make the fingerprint pressing head (334) move along the first direction.

9. The fingerprint module testing device according to any one of claims 5-7, characterized in that The fingerprint pressing head (334) includes a side key pressing head, a back pressing head and an optical pressing head.

10. A fingerprint module testing method, characterized in that Using the fingerprint module testing device according to any one of claims 4 to 9, the testing method includes the following steps: Providing a dummy finger with the fingerprint of the tester imprinted thereon; Establishing a fingerprint database and importing the fingerprint database into the mobile terminal; Place the mobile terminal on the fingerprint module testing device, and clamp and fix the mobile terminal by means of the mobile clamping part (221); Cover the fake finger on the fingerprint module of the mobile terminal. By means of the mobile pressure bar (333) and the fingerprint pressure head (334), make the fingerprint pressure head (334) approach the fingerprint module of the mobile terminal, and then fix the fingerprint pressure head (334) on the fingerprint module of the mobile terminal by operating the rotating lead screw (336); Provide a test terminal, connect the test terminal to the mobile terminal, and the test terminal is built-in with a test script; Execute the test script in the test terminal.

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