CN210109829U - Image acquisition module and authentication equipment - Google Patents
Image acquisition module and authentication equipment Download PDFInfo
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- CN210109829U CN210109829U CN201920914956.0U CN201920914956U CN210109829U CN 210109829 U CN210109829 U CN 210109829U CN 201920914956 U CN201920914956 U CN 201920914956U CN 210109829 U CN210109829 U CN 210109829U
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Abstract
The utility model discloses an image acquisition module, which comprises a main control circuit board, a first plug-in component arranged on the main control circuit board, an image acquisition circuit board, and a second plug-in component arranged on the image acquisition circuit board and in plug-in fit with the first plug-in component; the first plug assembly is electrically connected with the second plug assembly; the main control circuit board is provided with a main control chip set which is electrically connected with the first plug-in component, and the main control chip set comprises a DSP chip and a CPU chip; and the image acquisition circuit board is provided with an image sensor electrically connected with the second plug-in component. The main control circuit board and the image acquisition circuit board are in a separated design, so that the wiring density of the image acquisition circuit board and the main control circuit board can be reduced, gaps among all lines are large enough, the design difficulty of the printed circuit board is reduced, the influence on data line transmission is small during circuit switching frequency, and the stability of data transmission is improved.
Description
Technical Field
The utility model relates to an image acquisition field especially relates to an image acquisition module and authentication equipment.
Background
The image acquisition technology is widely applied to the fields of face recognition and the like. A face recognition module is required to be added to face recognition equipment. In the fields of attendance checking, security protection and the like, a human face module generally comprises a visible light camera and a near infrared camera which are used for respectively acquiring a visible light human face image and a near infrared human face image. With the development of the technology, the image quality requirement of the face camera is higher and higher. The existing face recognition module is a principle framework of CMOS (Complementary Metal-Oxide-Semiconductor) + DSP (Digital Signal Processing), and various chips and circuits are uniformly arranged on a circuit board.
The data line and the power line are arranged on the same circuit board, the wiring of the power supply and the wiring of the data line are arranged on a smaller circuit board, the requirement on the layout of the circuit wiring on the printed circuit board is high, namely the wiring space is smaller, and the gaps among the circuits are small, so that the circuit switching frequency can influence the stability of data line transmission.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an image acquisition module aims at solving prior art, and the clearance is little between each circuit on the printed circuit board of image acquisition module, influences the problem of the stability of data line transmission easily during circuit switching frequency.
To achieve the purpose, the utility model adopts the following technical proposal:
the image acquisition module comprises a main control circuit board, a first plug-in component arranged on the main control circuit board, an image acquisition circuit board and a second plug-in component arranged on the image acquisition circuit board and in plug-in fit with the first plug-in component; the first connector assembly is electrically connected with the second connector assembly; the main control circuit board is provided with a main control chip set which is electrically connected with the first plug-in component, and the main control chip set comprises a DSP chip and a CPU chip; and the image acquisition circuit board is provided with an image sensor electrically connected with the second plug-in component.
Furthermore, the main control circuit board is provided with a plurality of first connecting holes, the image acquisition circuit board is provided with second connecting holes corresponding to the first connecting holes, and a connecting assembly is arranged between the main control circuit board and the image acquisition circuit board.
Furthermore, the connecting assembly comprises a connecting bolt penetrating through the first connecting hole and the second connecting hole, a nut in threaded connection with the connecting bolt, and a supporting cylinder sleeved outside the connecting bolt; one end of the supporting cylinder is abutted with the main control circuit board, and the other end of the supporting cylinder is abutted with the image acquisition circuit board.
Further, the main control circuit board is rectangular, the length of the main control circuit board is 60 mm, and the width of the main control circuit board is 22 mm; the number of the first connecting holes is four, the inner diameter of each first connecting hole is 2 mm, the four first connecting holes are positioned at four corners of the same rectangle, the length of the rectangle formed by the first connecting holes is 36 mm, and the width of the rectangle formed by the first connecting holes is 18 mm; the image acquisition circuit board is rectangular, the length of the image acquisition circuit board is 40 mm, the width of the image acquisition circuit board is 22 mm, the number of the second connecting holes is four, the inner diameter of each second connecting hole is 2 mm, the four second connecting holes are positioned at four corners of the same rectangle, the length of the rectangle formed by the second connecting holes is 36 mm, and the width of the rectangle formed by the second connecting holes is 18 mm; the intersection point of the diagonal line of the main control circuit board coincides with the intersection point of the diagonal line of the image acquisition circuit board.
Furthermore, the main control circuit board is provided with a first positioning hole, and the image acquisition circuit board is provided with a second positioning hole.
Furthermore, the main control circuit board is provided with a plurality of fixing holes, and the plurality of fixing holes are distributed at two opposite ends of the main control circuit board.
Furthermore, the first plug assembly comprises a first male plug and a first female plug which are fixedly arranged on the main control circuit board; the second plug-in component comprises a second male plug and a second female plug which are fixedly arranged on the image acquisition circuit board; the second male plug is connected with the first female plug in an inserting mode, and the second female plug is connected with the first male plug in an inserting mode.
Furthermore, the second male plug and the second female plug are respectively located at two opposite ends of the image acquisition circuit board.
Furthermore, an infrared filter is arranged on the image sensor; and/or an encryption chip electrically connected with the main control chip set is further arranged on the main control circuit board.
Another object of the present invention is to provide an authentication device, including the above-mentioned image capturing module.
The utility model has the advantages that: the main control circuit board and the image acquisition circuit board are in a separated design, so that the wiring density of the image acquisition circuit board and the main control circuit board can be reduced, gaps among all lines are large enough, the design difficulty of the printed circuit board is reduced, the influence on data line transmission is small during circuit switching frequency, and the stability of data transmission is improved. Meanwhile, the main control circuit board and the image acquisition circuit board are designed in a separated mode, and the occupied area of the image acquisition module during installation can be reduced; and when the image acquisition circuit board is required to be updated correspondingly, the main control circuit board can be kept unchanged, and only the image acquisition circuit board is required to be updated, so that the development period is shortened.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.
Fig. 1 is a front view of an image capturing module according to an embodiment of the present invention;
FIG. 2 is a top view of the image capture module of FIG. 1;
fig. 3 is a schematic structural diagram of a main control circuit board in an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a connection assembly in an embodiment of the present invention;
fig. 5 is a schematic diagram of a circuit on the main control circuit board in an embodiment of the present invention;
fig. 6 is a schematic diagram of a circuit on the image capturing circuit board according to an embodiment of the present invention;
in the figure:
1. a main control circuit board; 11. a first connection hole; 12. a first positioning hole; 13. a fixing hole;
2. a first connector assembly; 21. a first male plug; 22. a first female plug;
3. an image acquisition circuit board; 31. a second connection hole; 32. a second positioning hole;
4. a second connector assembly; 41. a second male plug; 42. a second female plug;
5. a main control chip set; 6. an image sensor;
7. a connecting assembly; 71. a connecting bolt; 72. a nut; 73. a support cylinder;
8. and (5) encrypting the chip.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
The following describes the implementation of the present invention in detail with reference to specific embodiments.
As shown in fig. 1-6, an embodiment of the present invention provides an image capturing module, which includes a main control circuit board 1, a first plug-in component 2 disposed on the main control circuit board 1, an image capturing circuit board 3, and a second plug-in component 4 disposed on the image capturing circuit board 3 and in plug-in fit with the first plug-in component 2; the first connector assembly 2 is electrically connected to the second connector assembly 4; the main control circuit board 1 is provided with a main control chip set 5 electrically connected with the first plug-in component 2, and the main control chip set 5 comprises a DSP chip and a CPU (central processing unit) chip; the image acquisition circuit board 3 is provided with an image sensor 6 electrically connected with the second connector assembly 4.
The embodiment of the utility model provides an in, image sensor 6 can be two, the image acquisition module that can be used to face identification that also is two CMOS + DSP's principle frame to constitute. The image acquisition module comprises a main control circuit board 1 and an image acquisition circuit board 3(CMOS board), and the main control circuit board 1 and the image acquisition circuit board 3 are designed in a separated mode, so that the image acquisition module can be flexibly applied and embedded into terminal equipment (such as identity verification equipment). Because the image acquisition circuit board 3 is in inserted fit with the second plug-in component 4 through the first plug-in component 2, the image acquisition circuit board 3 is fixedly arranged on the main control circuit board 1, and the image acquisition circuit board 3 is electrically connected with the main control circuit board 1; the main control circuit board 1 and the image acquisition circuit board 3 are in a separated design, so that the wiring density on the image acquisition circuit board 3 and the main control circuit board 1 can be reduced, gaps among all lines are large enough, the design difficulty of the printed circuit board is reduced, the influence on data line transmission is small during circuit switching frequency, and the stability of data transmission is further improved. Meanwhile, the main control circuit board 1 and the image acquisition circuit board 3 are designed in a separated mode, and the occupied area of the image acquisition module during installation can be reduced; and when the image acquisition circuit board 3(CMOS board) needs to be updated correspondingly, the main control circuit board 1 can be kept unchanged, and only the image acquisition circuit board 3(CMOS board) needs to be updated, so that the development period is shortened.
It can be understood that other necessary circuits and original devices are also arranged on the main control circuit board 1 and the image acquisition circuit board 3.
Please refer to fig. 5-6, which are schematic circuit diagrams of one of the main control circuit board 1 and the image capturing circuit board 3. The model of the main control chipset 5 comprising the DSP chip and the CPU chip can be AK3916EV 300; three direct current voltage reducers positioned between the +5V power supply and the main control chip set 5 are respectively 1.15V, 1.8V and 3.3V; the USB socket can be a seven-pin socket, the CPU chip performs image processing and transmits the processed picture to a computer or other peripherals in a USB socket mode; the two crystal oscillators matched with the main control chip set 5 are respectively 24MHZ and 32.768 KHZ; the two low-dropout linear voltage regulators matched with the image sensor 6 are both 3.3V; the model of the image sensor 6 is GC 2033.
Further, please refer to fig. 3, as another embodiment of the image capturing module provided by the present invention, the main control circuit board 1 has a plurality of first connecting holes 11, the image capturing circuit board 3 has a second connecting hole 31 corresponding to the first connecting hole 11, a connecting assembly 7 is disposed between the main control circuit board 1 and the image capturing circuit board 3, the connecting assembly 7 includes a connecting bolt 71 penetrating through the first connecting hole 11 and the second connecting hole 31, and a nut 72 threadedly connected to the connecting bolt 71. Be equipped with coupling assembling 7 between main control circuit board 1 and image acquisition circuit board 3 in order to carry out fixed connection to main control circuit board 1 and image acquisition circuit board 3, connect to insert the first stability that connects the main control circuit board 1 and the image acquisition circuit board 3 is connected that connects on inserting the cooperation basis of inserting subassembly 2 and second and inserting subassembly 4 further to promote. Of course, the image capturing module can also be integrally mounted on a terminal (e.g., an authentication device) by the first connecting hole 11 and the second connecting hole 31 in cooperation with the connecting component 7. That is, the first connection hole 11 and the second connection hole 31 may be used as connection holes between the main control circuit board 1 and the image capturing circuit board 3, or may be used as a fixing hole 13 of the whole image capturing module.
Further, please refer to fig. 4, as the utility model provides a another kind of embodiment of image acquisition module, coupling assembling 7 still locates the outside support cylinder 73 of connecting bolt 71 including the cover, the one end and the main control circuit board 1 looks butt of support cylinder 73, the other end and the image acquisition circuit board 3 looks butt of support cylinder 73, support cylinder 73 is as the support component between main control circuit board 1 and the image acquisition circuit board 3 to there is the position in clearance to support between image acquisition circuit board 3 and the main control circuit board 1, promote the bulk strength of image acquisition module.
Further, referring to fig. 2-3, as another embodiment of the image capturing module according to the present invention, the main control circuit board 1 is rectangular, the length of the main control circuit board 1 is 60 mm, and the width of the main control circuit board 1 is 22 mm; the number of the first connecting holes 11 is four, the inner diameter of each first connecting hole 11 is 2 mm, and the four first connecting holes 11 are positioned at four corners of the same rectangle; the length of the rectangle formed by the first connecting hole 11 is 36 mm, and the width of the rectangle formed by the first connecting hole 11 is 18 mm; the image acquisition circuit board 3 is rectangular, the length of the image acquisition circuit board 3 is 40 mm, the width of the image acquisition circuit board 3 is 22 mm, the number of the second connecting holes 31 is four, the inner diameter of each second connecting hole 31 is 2 mm, the four second connecting holes 31 are positioned at four corners of the same rectangle, the length of the rectangle formed by the second connecting holes 31 is 36 mm, and the width of the rectangle formed by the second connecting holes 31 is 18 mm; the intersection point of the diagonal lines of the main control circuit board 1 coincides with the intersection point of the diagonal lines of the image acquisition circuit board 3. Of course, in other embodiments, the number of the first connection holes 11 and the second connection holes 31 may be other. For example, when the first connection hole 11 and the second connection hole 31 are three, they may be located at three corners of an equilateral triangle, respectively.
Further, please refer to fig. 3, as another embodiment of the image capturing module according to the present invention, the main control circuit board 1 has a first positioning hole 12, and the image capturing circuit board 3 has a second positioning hole 32. In order to facilitate the accuracy of processing the first connection holes 11, the main control circuit board 1 is provided with first positioning holes 12, and the first connection holes 11 are processed according to the distance between each first connection hole 11 and each first positioning hole 12; meanwhile, in order to facilitate the accuracy of processing the second connection holes 31, second positioning holes 32 are formed in the main control circuit board 1, and the second connection holes 31 are processed according to the distance between each second connection hole 31 and the second positioning hole 32.
Further, please refer to fig. 3, as another embodiment of the image capturing module according to the present invention, the main control circuit board 1 has a plurality of fixing holes 13, and the fixing holes 13 are distributed at two opposite ends of the main control circuit board 1. The main control circuit board 1 is provided with a plurality of fixing holes 13 for screws and other connecting pieces to pass through. The main control circuit board 1 is fixedly connected with the main body of the terminal, and the image acquisition module is fixedly mounted on the terminal (such as identity verification equipment).
Further, referring to fig. 1, as another embodiment of the image capturing module according to the present invention, the first connector assembly 2 includes a first male plug 21 and a first female plug 22 fixedly mounted on the main control circuit board 1; the second connector assembly 4 comprises a second male plug 41 and a second female plug 42 which are fixedly arranged on the image acquisition circuit board 3; the second male plug 41 is plugged with the first female plug 22, and the second female plug 42 is plugged with the first male plug 21. That is, the main control circuit board 1 and the image acquisition circuit board 3 are both provided with a male plug and a female plug, so that the stability of the main control circuit board 1 and the image acquisition circuit board 3 when the main control circuit board and the image acquisition circuit board are fixedly connected through the first connector assembly 2 and the second connector assembly 4 is ensured, and the looseness is not easy to occur.
Further, referring to fig. 1, as another embodiment of the image capturing module according to the present invention, the second male plug 41 and the second female plug 42 are respectively located at two opposite ends of the image capturing circuit board 3. That is, the opposite ends of the image acquisition circuit board 3 are provided with the inserting and fixing structures with the main control circuit board 1, so as to further improve the stability of the image acquisition circuit board 3 inserted and fixed on the main control circuit board 1.
Further, referring to fig. 1, as another specific implementation of the image capturing module provided by the present invention, an infrared filter is disposed on the image sensor 6; the main control circuit board 1 is also provided with an encryption chip 8 electrically connected with the main control chip group 5 for encrypting the processed data and preventing the data from being copied.
The embodiment of the utility model provides an authentication equipment is provided, including the image acquisition module and other indispensable subassemblies in above-mentioned embodiment. The identity authentication equipment can be equipment such as an entrance guard attendance machine and the like which needs face recognition or portrait acquisition.
It is to be understood that aspects of the present invention may be practiced otherwise than as specifically described.
It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. The image acquisition module is characterized by comprising a main control circuit board, a first plug-in component arranged on the main control circuit board, an image acquisition circuit board and a second plug-in component arranged on the image acquisition circuit board and in plug-in fit with the first plug-in component; the first connector assembly is electrically connected with the second connector assembly; the main control circuit board is provided with a main control chip set which is electrically connected with the first plug-in component, and the main control chip set comprises a DSP chip and a CPU chip; and the image acquisition circuit board is provided with an image sensor electrically connected with the second plug-in component.
2. The image capturing module as claimed in claim 1, wherein the main control circuit board has a plurality of first connecting holes, the image capturing circuit board has a second connecting hole corresponding to the first connecting holes, and a connecting assembly is disposed between the main control circuit board and the image capturing circuit board.
3. The image capturing module as claimed in claim 2, wherein the connecting member includes a connecting bolt passing through the first connecting hole and the second connecting hole, a nut screwed to the connecting bolt, and a supporting cylinder sleeved outside the connecting bolt; one end of the supporting cylinder is abutted with the main control circuit board, and the other end of the supporting cylinder is abutted with the image acquisition circuit board.
4. The image capturing module as claimed in claim 2, wherein the main control circuit board is rectangular, the length of the main control circuit board is 60 mm, and the width of the main control circuit board is 22 mm; the number of the first connecting holes is four, the inner diameter of each first connecting hole is 2 mm, the four first connecting holes are positioned at four corners of the same rectangle, the length of the rectangle formed by the first connecting holes is 36 mm, and the width of the rectangle formed by the first connecting holes is 18 mm; the image acquisition circuit board is rectangular, the length of the image acquisition circuit board is 40 mm, the width of the image acquisition circuit board is 22 mm, the number of the second connecting holes is four, the inner diameter of each second connecting hole is 2 mm, the four second connecting holes are positioned at four corners of the same rectangle, the length of the rectangle formed by the second connecting holes is 36 mm, and the width of the rectangle formed by the second connecting holes is 18 mm; the intersection point of the diagonal line of the main control circuit board coincides with the intersection point of the diagonal line of the image acquisition circuit board.
5. The image capturing module as claimed in claim 2, wherein the main control circuit board defines a first positioning hole, and the image capturing circuit board defines a second positioning hole.
6. The image capturing module as claimed in any one of claims 1 to 5, wherein the main control circuit board has a plurality of fixing holes, and the plurality of fixing holes are disposed at two opposite ends of the main control circuit board.
7. The image capture module of any of claims 1-5, wherein the first connector assembly comprises a first male plug and a first female plug fixedly mounted to the main control circuit board; the second plug-in component comprises a second male plug and a second female plug which are fixedly arranged on the image acquisition circuit board; the second male plug is connected with the first female plug in an inserting mode, and the second female plug is connected with the first male plug in an inserting mode.
8. The image capturing module of claim 7, wherein the second male plug and the second female plug are respectively located at two opposite ends of the image capturing circuit board.
9. The image capturing module of any of claims 1-5, wherein an infrared filter is disposed on the image sensor; and/or an encryption chip electrically connected with the main control chip set is further arranged on the main control circuit board.
10. An authentication device comprising an image acquisition module according to any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920914956.0U CN210109829U (en) | 2019-06-17 | 2019-06-17 | Image acquisition module and authentication equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920914956.0U CN210109829U (en) | 2019-06-17 | 2019-06-17 | Image acquisition module and authentication equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210109829U true CN210109829U (en) | 2020-02-21 |
Family
ID=69565479
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920914956.0U Active CN210109829U (en) | 2019-06-17 | 2019-06-17 | Image acquisition module and authentication equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210109829U (en) |
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2019
- 2019-06-17 CN CN201920914956.0U patent/CN210109829U/en active Active
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| GR01 | Patent grant | ||
| CP03 | "change of name, title or address" |
Address after: No.32, Pingshan Industrial Road, Tangxia Town, Dongguan City, Guangdong Province, 523710 Patentee after: Entropy Technology Co., Ltd Address before: 523710 26 Pingshan 188 Industrial Avenue, Tangxia Town, Dongguan, Guangdong Patentee before: Zhongkong Smart Technology Co.,Ltd. |
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| CP03 | "change of name, title or address" |