Brush palm device

Abstract

The utility model provides a brush palm device, and belongs to the technical field of biological recognition. The brush palm equipment comprises at least one camera, at least one light source piece and a display module, the at least one light source piece and the display module are respectively adjacent to the at least one camera; the brush palm equipment comprises a first light supplementing mode, in the first light supplementing mode, the at least one light source piece emits light, the display module emits light, and the at least one light source piece and the display module carry out light supplementing illumination on the at least one camera. According to the palm brushing device, the light source part, the display module and the camera are adjacently arranged, in the first light supplementing mode, the light source part and the display module emit light together to conduct light supplementing illumination on the camera, the display module can conduct light supplementing illumination on illumination dead angles of the light source part, and therefore the definition of palm print images collected by the camera can be improved, and the user experience is improved. And therefore, the recognition efficiency and the working reliability of the brush palm equipment are improved.

Description

Technical Field

[0001] The present application relates to the field of biometric identification technology, and in particular to a palm scanning device. Background Art

[0002] With the promotion and application of convenient payment, more and more scenarios in daily life need to rely on biometric technology to realize user identity recognition. Among them, palm swiping recognition is portable and contactless, thus bringing a good identity recognition experience.

[0003] In the related art, palm swiping recognition usually uses light sources arranged around the camera to supplement the light of the user's palm. However, since the illumination field angle of the light source is limited and there are blind spots, there is usually a problem of insufficient clarity of the palm print image in some areas. Utility Model Content

[0004] The present application provides a palm scanning device, which can solve the problem that the illumination field angle of the light source is limited, there are blind spots for illumination, and the palm print image clarity in some areas is insufficient.

[0005] The technical solution is as follows:

[0006] A palm brushing device, comprising: at least one camera, at least one light source and a display module; the at least one light source and the display module are respectively adjacent to the at least one camera;

[0007] The palm-brushing device includes a first fill light mode. In the first fill light mode, the at least one light source emits light, the display module emits light, and the at least one light source and the display module respectively provide fill light for the at least one camera.

[0008] The beneficial effects of the technical solution provided by this application include at least:

[0009] In the palm scanning device of the present application, the light source, the display module and the camera are arranged adjacent to each other. In the first fill light mode, the light source and the display module emit light together to provide fill light for the camera. The display module can provide fill light for the blind spots of the light source, which is beneficial to improve the clarity of the palm print image collected by the camera, thereby improving the recognition efficiency and working reliability of the palm scanning device. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0011] Figure 1 is a schematic diagram of the structure of a palm brushing device provided in an embodiment of the present application;

[0012] Figure 2 is a structural cross-sectional view of the palm brush device provided by an embodiment of the present application in a first fill light mode;

[0013] Figure 3 is a structural schematic diagram of a palm brushing device provided in another embodiment of the present application;

[0014] Figure 4 is a structural block diagram of a palm brushing device provided in an embodiment of the present application;

[0015] Figure 5 is a structural block diagram of a palm brushing device provided in another embodiment of the present application;

[0016] Figure 6 It is a structural cross-sectional view of the palm brush device provided by an embodiment of the present application in the second fill light mode.

[0017] The reference numerals in the figures represent respectively:

[0018] 1. Camera;

[0019] 2. Light source components;

[0020] 3. Display module;

[0021] 31. first pixel unit; 32. second pixel unit;

[0022] 4. Control unit;

[0023] 5. Distance sensor;

[0024] 6. Ring-shaped light guide;

[0025] 61. Supporting part;

[0026] 7. Cover plate;

[0027] 8. Circuit board. DETAILED DESCRIPTION

[0028] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the present application. Instead, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the appended claims.

[0029] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate directions or positional relationships based on the attached Figure 1 The orientation or positional relationship shown is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0030] Unless otherwise defined, all technical terms used in the embodiments of the present application have the same meanings as commonly understood by those of ordinary skill in the art.

[0031] In order to collect good recognition images, palm-swiping devices in related technologies need to arrange the light sources used for lighting around the camera. However, due to the natural spatial distance differences between light sources in the design of multi-light source arrays, when the user's palm is close to the camera, part of the user's palm (such as the palm area) happens to be in the blind spot of the light source, and the palm is prone to poor central brightness. Only when the distance is far can the uniformity of lighting achieve a higher performance. This results in insufficient fill light in some areas of the user's palm in certain scenarios, resulting in low clarity, which in turn affects the recognition efficiency and reliability of palm-swiping recognition.

[0032] Therefore, the present application provides a palm scanning device, which uses a display module to provide fill-in lighting for blind spots of light sources, thereby improving the clarity of palm print images captured by a camera, and further improving the recognition efficiency and working reliability of the palm scanning device.

[0033] In order to make the objectives, technical solutions and advantages of the present application clearer, the implementation methods of the present application will be further described in detail below with reference to the accompanying drawings.

[0034] Combination Figure 1 and Figure 2 As shown, this embodiment provides a palm brushing device, which includes: at least one camera 1, at least one light source 2 and a display module 3; the at least one light source 2 and the display module 3 are respectively adjacent to the at least one camera 1.

[0035] The palm-brushing device includes a first fill light mode. In the first fill light mode, at least one light source 2 emits light, and the display module 3 emits light. At least one light source 2 and the display module 3 respectively provide fill light for at least one camera 1.

[0036] In the palm-swiping device of the present application, the light source 2, the display module 3 and the camera 1 are arranged adjacent to each other. In the first fill light mode, the light source 2 and the display module 3 emit light together to provide fill light for the camera 1. The display module 3 can provide fill light for the blind spots of the light source 2, which is beneficial to improve the clarity of the palm print image collected by the camera 1, thereby improving the recognition efficiency and working reliability of the palm-swiping device.

[0037] The palm scanning device of this embodiment uses a display module 3 with a light-emitting function to compensate for the problem of limited illumination field angle of the central light source 2. Since the light luminance (or display grayscale) of the display module 3 is adjustable, the brightness of the display module 3 can be conveniently adjusted for different fill-light scenes, thereby improving the illumination uniformity of the palm print image and improving the quality of the palm print image.

[0038] In some possible implementations, the display module 3 includes any one of active light-emitting display screens such as a plasma display panel (PDP), a vacuum fluorescent display (VFD), a field emission display (FED), an electroluminescent display (LED), an organic light-emitting diode display (OLED), a liquid crystal display (LCD), and a micro-electro-mechanical system display (DMD).

[0039] Combination Figure 3 As shown, in some embodiments, the display module 3 includes at least one first pixel unit 31 and at least one second pixel unit 32, and the distance between the first pixel unit 31 and at least one light source 2 is different from the distance between the second pixel unit 32 and at least one light source 2; in the first fill light mode, the display grayscale value of the first pixel unit 31 is different from the display grayscale value of the second pixel unit 32.

[0040] Among them, the display gray value of the display module 3 can represent the brightness of the display screen. Therefore, in this embodiment, the display gray value is proportional to the screen brightness, that is, the larger the display gray value, the greater the screen brightness, and the smaller the display gray value, the smaller the screen brightness. In some embodiments, the brightness of the first pixel unit 31 can be controlled to be different from the brightness of the second pixel unit 32 to achieve a differentiated fill light effect.

[0041] According to the distance relationship of the light source component 2, the first pixel unit 31 and the second pixel unit 32 in the display module 3 are arranged with different display grayscale values, so that the fill light effect of the display module 3 and the fill light effect of the light source component 2 can be coordinated, which is beneficial to improving the illumination uniformity of the palmprint image and improving the quality of the palmprint image.

[0042] In some possible implementations, in the first fill light mode, the display module 3 can be in a display state or a non-display state. When the display module 3 is in the display state, the display grayscale value of the first pixel unit 31 and the display grayscale value of the second pixel unit 32 are combined with the display image, for example, the image in the area where the first pixel unit 31 is located is dark, and the image in the area where the second pixel display unit 32 is located is bright.

[0043] Combination Figure 3 As shown, in some embodiments, the distance between the first pixel unit 31 and at least one light source 2 is smaller than the distance between the second pixel unit 32 and at least one light source 2; in the first fill light mode, the display grayscale value of the first pixel unit 31 is smaller than the display grayscale value of the second pixel unit 32.

[0044] Through the above arrangement, the display grayscale value of the first pixel unit 31 close to the light source 2 is lower, and the display grayscale value of the second pixel unit 32 far away from the light source 2 is higher, so that the fill light effect of the display module 3 is better the farther away from the light source 2, which is beneficial to improving the illumination uniformity of the palmprint image and improving the quality of the palmprint image.

[0045] Combination Figure 4 As shown, in some embodiments, the palm-brushing device also includes a control unit 4, which is electrically connected to at least one camera 1, at least one light source 2 and a display module 3 respectively; the control unit 4 is configured to control at least one light source 2 to emit light and control the display module 3 to emit light in a first fill light mode.

[0046] The control unit 4 can be used to control the light source 2 and the display module 3 to emit light simultaneously when the palm scanning device is in the first fill light mode, so as to provide uniform fill light for the user's palm, so that the camera 1 module can collect high-quality palm print images.

[0047] Combination Figure 5 As shown, in some embodiments, the palm-brushing device also includes a distance sensor 5, which is electrically connected to a control unit 4; the control unit 4 is configured to control the palm-brushing device to execute a first fill light mode when the distance sensor 5 detects that the distance between the user's palm and at least one camera 1 is less than or equal to a target value.

[0048] The distance sensor 5 includes, but is not limited to, an ultrasonic distance sensor, an optical distance sensor, a capacitive distance sensor, an infrared distance sensor, a laser radar, a stereoscopic vision distance measurement, and the like.

[0049] Through the above arrangement, the distance sensor 5 is used to detect the distance between the user's palm and the camera 1. When the distance between the user's palm and the camera 1 is less than or equal to the target value, it means that the user's palm is close to the camera 1 and the light source 2 has a lighting blind spot. At this time, the light source 2 and the display module 3 are controlled to emit light together to perform uniform fill light on the user's palm in the first fill light mode.

[0050] Combination Figure 6 As shown, in some embodiments, the palm-brushing device also includes a second fill light mode; in the second fill light mode, at least one light source 2 emits light, and at least one light source 2 provides fill light for at least one camera 1; the control unit 4 is configured to control the palm-brushing device to execute the second fill light mode when the distance sensor 5 detects that the distance between the user's palm and at least one camera 1 is greater than the target value.

[0051] Through the above arrangement, the distance sensor 5 is used to detect the distance between the user's palm and the camera 1. When the distance between the user's palm and the camera 1 is greater than the target value, it means that the user's palm is far away from the camera 1, and the light source 2 can achieve full coverage of the user's palm. At this time, controlling the light source 2 to emit light can achieve uniform fill light for the user's palm in the second fill light mode.

[0052] Combination Figure 2 and Figure 6 As shown, in some embodiments, there are multiple light source elements 2 , at least one camera 1 and a display module 3 are adjacent, and multiple light source elements 2 are arranged around at least one camera 1 and the display module 3 .

[0053] In this embodiment, the display module 3 and the camera 1 are located in the middle of a plurality of light source elements 2 arranged in a ring, which can fill in the light for the palm area of ​​the user's palm when the distance between the user's palm and the camera 1 is close, thereby ensuring that the palm print image captured by the camera 1 is complete and clear.

[0054] Combination Figure 2 and Figure 6 As shown, in some embodiments, the palm brush device further includes an annular light guide 6, which is located on the light emitting side of the light source 2 and surrounds at least one camera 1 and the display module 3. By arranging the annular light guide 6 on the light emitting side of the light source 2, the light emitted by the light source 2 can be uniformly guided, thereby improving the light emitting effect of the light source 2.

[0055] Combination Figure 3As shown, in some embodiments, a support portion 61 is provided on the annular light guide 6, and the palm brushing device further comprises a cover plate 7, and the support portion 61 supports the cover plate 7 above at least one camera 1 and the display module 3. The cover plate 7 is supported above the camera 1 and the display module 3 by the support portion 61 on the annular light guide 6, so as to protect the camera 1 and the display module 3.

[0056] Combination Figure 3 As shown, in some embodiments, the palm brush device further includes a circuit board 8, and at least one camera 1, a display module 3 and a light source 2 are respectively integrated and connected to the surface of the circuit board 8. Through the above arrangement, the palm brush device has a more compact structure, which is conducive to improving the assembly convenience and functional reliability of the palm brush device.

[0057] In some possible implementations, the circuit board 8 includes a printed circuit board (PCB), a flexible printed circuit board (FPC), a rigid-flexible board, and the like.

[0058] In some possible implementations, a plurality of candidate palm print images may be stored in the control unit 4. Exemplarily, the control unit is a CPU (Central Processing Unit) capable of image processing.

[0059] Through the electrical connection between the control unit 4 and the camera 1, the control unit 4 can obtain the palm print image sent by the camera 1, and by comparing the palm print image with the candidate palm print image, the control unit 4 can determine the target identity corresponding to the palm print image.

[0060] Exemplarily, the identification device provided in the embodiments of the present application can be used in at least one of a payment scenario and an identity authentication scenario.

[0061] For example, by using an identification device to scan palm print information, contactless mobile payment can be achieved, which can improve payment efficiency. For another example, by using an identification device to scan palm print information, contactless identity authentication can be achieved, which can improve the accuracy of identity authentication.

[0062] After the palm scanning device obtains the palm print image, it can process the image to achieve identity authentication. Optionally, the palm scanning device has an image processor inside, and through the electrical connection between the image processor and the control unit 4, the control unit 4 can obtain the processing of the palm print image by the image processor, thereby achieving authentication and judgment of identity information.

[0063] In an optional implementation scenario, the image processor may also be located on an external device of the recognition device. Exemplarily, the image processor is located on an external computer, and there is a communication connection between the recognition device and the external computer, and the identity information can be sent to the image processor through the communication connection. In this case, the external interface has a data transmission function, and the recognition device can use the external interface to connect to the external computer to transmit the identity information.

[0064] It should be noted that the "several" and "at least one" mentioned in this article refer to one or more, and "multiple" and "at least two" refer to two or more. "And / or" describes the association relationship of the associated objects, indicating that three relationships can exist. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the associated objects before and after are in an "or" relationship.

[0065] In the description of this specification, the description with reference to the terms "certain embodiments", "one embodiment", "some embodiments", "illustrative embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiments or examples are included in at least one embodiment or example of the present disclosure.

[0066] The above descriptions are merely embodiments of the present disclosure and are not intended to limit the present disclosure. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present disclosure shall be included in the protection scope of the present disclosure.

Claims

1. A palm brushing device, It is characterized in that The palm-brushing device comprises: at least one camera (1), at least one light source (2) and a display module (3); the at least one light source (2) and the display module (3) are respectively adjacent to the at least one camera (1); The palm-brushing device comprises a first fill-light mode, in which the at least one light source (2) emits light, the display module (3) emits light, and the at least one light source (2) and the display module (3) respectively provide fill-light illumination for the at least one camera (1).

2. The palm brushing device according to claim 1, It is characterized in that The display module (3) comprises at least one first pixel unit (31) and at least one second pixel unit (32), wherein the distance between the first pixel unit (31) and the at least one light source element (2) is different from the distance between the second pixel unit (32) and the at least one light source element (2); In the first fill light mode, the display grayscale value of the first pixel unit (31) is different from the display grayscale value of the second pixel unit (32).

3. The palm brushing device according to claim 2, It is characterized in that The distance between the first pixel unit (31) and the at least one light source element (2) is smaller than the distance between the second pixel unit (32) and the at least one light source element (2); In the first fill light mode, the display grayscale value of the first pixel unit (31) is smaller than the display grayscale value of the second pixel unit (32).

4. The palm brushing device according to any one of claims 1 to 3, It is characterized in that The palm-brushing device further comprises a control unit (4), wherein the control unit (4) is electrically connected to the at least one camera (1), the at least one light source (2) and the display module (3) respectively; The control unit (4) is configured to, in the first fill light mode, control the at least one light source element (2) to emit light and control the display module (3) to emit light.

5. The palm brushing device according to claim 4, It is characterized in that The palm brushing device further comprises a distance sensor (5), wherein the distance sensor (5) is electrically connected to the control unit (4); The control unit (4) is configured to control the palm-wiping device to execute a first fill light mode when the distance sensor (5) detects that the distance between the user's palm and the at least one camera (1) is less than or equal to a target value.

6. The palm brushing device according to claim 5, It is characterized in that The palm-brushing device further comprises a second fill-light mode; in the second fill-light mode, the at least one light source (2) emits light, and the at least one light source (2) provides fill-light for the at least one camera (1); The control unit (4) is configured to control the palm-wiping device to execute a second fill light mode when the distance sensor (5) detects that the distance between the user's palm and the at least one camera (1) is greater than a target value.

7. The palm brushing device according to claim 1, It is characterized in that The number of the light source components (2) is multiple, the at least one camera (1) and the display module (3) are adjacent, and the multiple light source components (2) are arranged around the at least one camera (1) and the display module (3).

8. The palm brushing device according to claim 7, It is characterized in that The palm-brushing device further comprises an annular light guide (6), wherein the annular light guide (6) is located on the light-emitting side of the light source (2) and surrounds the at least one camera (1) and the display module (3).

9. The palm brushing device according to claim 8, It is characterized in that The annular light guide (6) is provided with a support portion (61), and the palm-brushing device further comprises a cover plate (7), wherein the support portion (61) supports the cover plate (7) above the at least one camera (1) and the display module (3).

10. The palm brushing device according to claim 1, It is characterized in that The palm-brushing device further comprises a circuit board (8), and the at least one camera (1), the display module (3) and the light source component (2) are respectively integrated and connected to the surface of the circuit board (8).

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