CN109325477A - A kind of near-infrared face recognition module - Google Patents
A kind of near-infrared face recognition module Download PDFInfo
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- CN109325477A CN109325477A CN201811386960.0A CN201811386960A CN109325477A CN 109325477 A CN109325477 A CN 109325477A CN 201811386960 A CN201811386960 A CN 201811386960A CN 109325477 A CN109325477 A CN 109325477A
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- 238000004891 communication Methods 0.000 claims abstract description 43
- 238000012545 processing Methods 0.000 claims abstract description 5
- 238000005516 engineering process Methods 0.000 description 6
- 238000001514 detection method Methods 0.000 description 3
- 239000004973 liquid crystal related substance Substances 0.000 description 3
- 230000006855 networking Effects 0.000 description 3
- 230000006870 function Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
- G06V40/12—Fingerprints or palmprints
- G06V40/13—Sensors therefor
- G06V40/1318—Sensors therefor using electro-optical elements or layers, e.g. electroluminescent sensing
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/38—Information transfer, e.g. on bus
- G06F13/40—Bus structure
- G06F13/4063—Device-to-bus coupling
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Abstract
The invention discloses a kind of near-infrared face recognition modules, including mainboard, power module, display screen, infrared emission module, infrared receiver module and image capture module；Communication module, processor and memory are integrated on mainboard, processor and memory establish communication connection with communication module respectively；Image capture module acquires after human face image information, the data of acquisition are stored to memory, processor carries out the human face image information in memory to be sent to display screen after calculation processing, display screen shows the human face image information scanned, scanned person can observe the image information on display screen while scanning to judge whether face is targeted by the transmitting camera lens of infrared emission module and the reception camera lens of infrared receiver module, it avoids taking considerable time alignment, therefore can very high recognition efficiency and recognition accuracy.
Description
Technical Field
The invention relates to the field of image recognition technology, in particular to a near-infrared face recognition module.
Background
The face recognition technology is a new biological recognition technology which is supported by the nation with great effort in recent years and is widely applied, the existing face recognition technology usually adopts a visible light face recognition technology, and the visible light face recognition takes a common standard camera as a special acquisition device.
However, the camera is affected by ambient light when acquiring the face information, and the controllability of the recognition accuracy is low.
Disclosure of Invention
The embodiment of the invention aims to provide a near-infrared face recognition module which is used for improving the accuracy of face recognition.
In order to achieve the purpose, the technical scheme of the embodiment of the invention is as follows:
a near-infrared face recognition module comprises a mainboard, an infrared emission module, an infrared receiving module, an image acquisition module, a first FFC (flexible flat cable) interface and a second FFC interface;
the mainboard is integrated with a communication module, a processor and a memory, and the processor and the memory are respectively in communication connection with the communication module;
the first FFC flat cable interface, the second FFC flat cable interface, the infrared transmitting module, the infrared receiving module and the image acquisition module are respectively in communication connection with the communication module;
the image acquisition module is used for acquiring face image information;
the infrared transmitting module is used for transmitting infrared rays to the face, and the infrared receiving module is used for receiving the infrared rays reflected by the face;
the memory is used for storing the data information acquired by the image acquisition module and the infrared receiving module;
the processor is used for carrying out operation processing on the data information stored in the memory.
The embodiment of the invention is further provided with: the near-infrared face recognition module also comprises a power supply module and a display screen, wherein the power supply module is connected with the first FFC flat cable interface, and the display screen is connected with the second FFC flat cable interface;
the power supply module is used for supplying power to the display screen, the mainboard, the infrared transmitting module, the image acquisition module and the infrared receiving module;
the display screen is used for receiving the data information acquired by the image acquisition module and displaying the data information in the form of an image.
The embodiment of the invention is further provided with: the display screen is a touch display screen.
The embodiment of the invention is further provided with: and the communication module and the display screen are communicated by adopting an RS485 communication protocol or an RS232 communication protocol or a Wiegand communication protocol.
The embodiment of the invention is further provided with: the image acquisition module is a color camera.
The embodiment of the invention is further provided with: the infrared receiving module is an infrared camera.
The embodiment of the invention is further provided with: the infrared emission module comprises an infrared LED.
The embodiment of the invention is further provided with: the memory size of the memory is larger than 4 GB.
The embodiment of the invention is further provided with: the face recognition module further comprises a card swiping module, and the card swiping module is electrically connected with the communication module.
The embodiment of the invention is further provided with: the near-infrared face recognition module further comprises a wiegand interface, an RS485 interface, an RS232 interface and a power supply interface which are respectively connected with the first FFC flat cable interface. A near-infrared face recognition module comprises a mainboard, a power supply module, a display screen, an infrared transmitting module, an infrared receiving module and an image acquisition module;
the embodiment of the invention has the following advantages:
1. after the image acquisition module acquires face image information, the acquired data is stored in the memory, the processor calculates and processes the face image information in the memory and then sends the face image information to the display screen, the display screen displays the face image information which is being scanned, the transmitting lens of the infrared transmitting module and the receiving lens of the infrared receiving module are arranged beside the receiving lens of the image acquisition module and have the same orientation, a scanned person can observe the image information on the display screen while scanning to judge whether the face is aligned with the transmitting lens of the infrared transmitting module and the receiving lens of the infrared receiving module, and the consumption of a large amount of time for alignment is avoided, so that the identification efficiency and the identification accuracy can be improved;
2. the infrared transmitting module transmits infrared rays to a face, the infrared rays are reflected to the infrared receiving module after being reflected by the face surface, the infrared receiving module stores received data information into a memory, the memory is pre-stored with initial data information of the face, a processor compares the initial data information of the face stored in the memory with the acquired data information of the face, if matching results are the same, the scanned person is proved to have the authority of passing scanning authentication, if the matching results are different, the scanned person is proved not to have the authority of passing scanning authentication, environmental light has little influence on the detection of the infrared generating module and the infrared receiving module, and the accuracy of identification can be improved;
3. the power module and the display screen are respectively connected with the first FFC flat cable interface and the second FFC flat cable interface, so that the maintenance and the detection are convenient, and the interference of heat generated after the power module is electrified and a magnetic field to a video signal can be reduced;
4. the infrared LED is also called an infrared light emitting diode, is a near-infrared light emitting device for converting electric energy into light energy, and has the advantages of small volume, low power consumption, good directivity and the like;
5. the size of the memory is larger than 4GB, more pre-stored face information can be stored, and more people can use the same face recognition module for scanning authentication;
6. when the infrared transmitting module and/or the infrared receiving module breaks down, the IC card can be swiped through the card swiping module for authentication.
Drawings
FIG. 1 is a schematic view of a connection structure between modules in embodiment 1;
fig. 2 is a schematic diagram showing a connection structure between the wiegand interface, the RS485 interface, the RS232 interface, and the power supply interface and the first FFC bus cable interface in embodiment 2.
Wherein,
1. a main board; 11. a communication module; 12. a processor; 13. a memory;
2. a power supply module;
3. a display screen;
4. an infrared emission module;
5. an infrared receiving module;
6. an image acquisition module;
7. a first FFC flex cable interface;
8. a second FFC flex cable interface;
9. a card swiping module;
101. a wiegand interface;
102. an RS485 interface;
103. an RS232 interface;
104. and a power interface.
Detailed Description
The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
Example 1
A near-infrared face recognition module is shown in figure 1 and comprises a main board 1, a power supply module 2, a display screen 3, an infrared transmitting module 4, an infrared receiving module 5 and an image acquisition module 6; a communication module 11, a processor 12 and a memory 13 are integrated on the mainboard 1, and the processor 12 and the memory 13 are respectively in communication connection with the communication module 11; the power module 2, the display screen 3, the infrared transmitting module 4, the infrared receiving module 5 and the image acquisition module 6 are respectively in communication connection with the communication module 11; the power supply module 2 is used for supplying power to the display screen 3, the mainboard 1, the infrared transmitting module 4, the image acquisition module 6 and the infrared receiving module 5; the image acquisition module 6 is used for acquiring face image information; the display screen 3 is used for receiving the data information acquired by the image acquisition module 6 and displaying the data information in the form of an image; the infrared transmitting module 4 is used for transmitting infrared rays to the face, and the infrared receiving module 5 is used for receiving the infrared rays reflected by the face; the memory 13 is used for storing the data information acquired by the image acquisition module 6 and the infrared receiving module 5; the processor 12 is configured to perform arithmetic processing on data information stored in the memory 13.
After the image acquisition module 6 acquires the face image information, the acquired data is stored in the memory 13, the processor 12 calculates the face image information in the memory 13 and then sends the face image information to the display screen 3, the display screen 3 displays the face image information being scanned, the transmitting lens of the infrared transmitting module 4 and the receiving lens of the infrared receiving module 5 are arranged beside the receiving lens of the image acquisition module 6 and face towards the same direction, a scanned person can observe the image information on the display screen 3 while scanning to judge whether the face aligns with the transmitting lens of the infrared transmitting module 4 and the receiving lens of the infrared receiving module 5, thereby avoiding consuming a large amount of time alignment, and improving the identification efficiency and the identification accuracy.
The power module 2 is connected with the communication module 11 through a first FFC flat cable interface 7, and the display screen 3 is connected with the communication module 11 through a second FFC flat cable interface 8. The power module 2 and the display screen 3 are respectively connected with the first FFC flat cable interface 7 and the second FFC flat cable interface 8, so that the maintenance and the detection are convenient, and the interference of heat generated after the power module 2 is electrified and a magnetic field to a video signal can be reduced.
The display screen 3 is the touch display screen 3, sets up virtual button on the touch display screen 3, does not need two outer entity keyboards or entity button that set up, reduces the space that face identification module occupy, also can supply the user to operate more conveniently.
The communication module 11 and the display screen 3 are communicated by adopting an RS485 communication protocol or an RS232 communication protocol or a Wiegand communication protocol. The intelligent instrument is developed along with the maturity of the single chip microcomputer technology in the early eighties, and the world instrument market is basically monopolized by the intelligent instrument at present, which is attributed to the requirement of enterprise informatization, and one of the necessary conditions of the enterprise in instrument model selection is to have a networking communication interface. The simple process quantity of data analog signal output is the first, and the instrument interface is the RS232 interface later, and the interface can realize a point-to-point communication mode, but the networking function cannot be realized in the mode, and the RS485 appearing later solves the problem. Although the RS232 bus interface can not realize the networking function, the cost is lower compared with the RS485 bus interface.
Wiegand protocol is also called Wiegand protocol, which is a standard unified internationally and is a communication protocol established by motorola corporation. It is applicable to many features of card readers and cards related to access control systems. It has many formats, the standard 26-bit should be the most common format. In addition, there are 34-bit, 37-bit, and the like formats. The standard 26-bit format is an open format, which means that anyone can purchase an IC card of a specific format, and the kind of the specific format is publicly selectable. The 26-Bit format is a widely used industry standard and is open to all IC card users, and almost all access control systems accept the standard 26-Bit format.
The face recognition module further comprises a card swiping module 9, wherein the card swiping module 9 is electrically connected with the communication module 11, and the card swiping module 9 is of a brand of Hongkuan/HOGC and is of a model of HOC-L133C. When the infrared transmitting module 4 and/or the infrared receiving module 5 are/is in failure, the IC card can be swiped through the card swiping module 9 for authentication.
The image acquisition module 6 is a color camera, and the infrared receiving module 5 is an infrared camera.
The infrared emission module 4 includes an infrared LED, which is also called an infrared light emitting diode, is a near-infrared light emitting device that converts electric energy into optical energy, and has advantages of small size, low power consumption, good directivity, and the like.
The memory size of the memory 13 is larger than 4GB, and the memory size of the memory 13 is larger than 4GB, so that more pre-stored face information can be stored, and more people can use the same face recognition module to perform scanning authentication.
The processor 12 in this embodiment is a full log T2 type processor 12, which has a fast data processing speed and improves the working efficiency of scanning authentication, and can also be applied to other types of processors 12 with similar performance.
Example 2
A near-infrared face recognition module, which is different from that in embodiment 1, as shown in fig. 2, the face recognition module further includes a wiegand interface 101, an RS485 interface 102, an RS232 interface 103, and a power interface 104, which are respectively connected to a first FFC flat cable interface 7, the wiegand interface 101 communicates by using a wiegand communication protocol, the RS485 interface 102 communicates by using an RS485 communication protocol, and the RS232 interface 103 communicates by using an RS232 communication protocol. The RS485 interface 102 and the RS232 interface 103 are used for connecting an external intelligent linkage system or a card reader, the Wiegand interface 101 is used for connecting the card reader, and the power interface 104 is used for connecting a power supply module.
The display screen is connected with the second FFC flat cable interface and then is communicated with the main board based on an RGB LED liquid crystal display protocol through the communication module to obtain color display information. The display screen in the embodiment adopts a seven-inch liquid crystal display screen of Shenzhen Xinjiaguan, and the model is S7-2. And the protocol butt joint with different LCD liquid crystal screen manufacturers can be realized through the second FFC flat cable interface.
Although the invention has been described in detail above with reference to a general description and specific examples, it will be apparent to one skilled in the art that modifications or improvements may be made thereto based on the invention. Accordingly, such modifications and improvements are intended to be within the scope of the invention as claimed.
Claims (10)
1. A near-infrared face recognition module is characterized in that: the device comprises a mainboard (1), an infrared transmitting module (4), an infrared receiving module (5), an image acquisition module (6), a first FFC flat cable interface (7) and a second FFC flat cable interface (8);
a communication module (11), a processor (12) and a memory (13) are integrated on the mainboard (1), and the processor (12) and the memory (13) are respectively in communication connection with the communication module (11);
the first FFC flat cable interface (7), the second FFC flat cable interface (8), the infrared transmitting module (4), the infrared receiving module (5) and the image acquisition module (6) are respectively in communication connection with the communication module (11);
the image acquisition module (6) is used for acquiring face image information;
the infrared transmitting module (4) is used for transmitting infrared rays to the face, and the infrared receiving module (5) is used for receiving the infrared rays reflected by the face;
the memory (13) is used for storing the data information acquired by the image acquisition module (6) and the infrared receiving module (5);
the processor (12) is used for carrying out operation processing on the data information stored in the memory (13).
2. The near-infrared face recognition module of claim 1, wherein: the near-infrared face recognition module further comprises a power supply module (2) and a display screen (3), the power supply module (2) is connected with the first FFC flat cable interface (7), and the display screen (3) is connected with the second FFC flat cable interface (8);
the power supply module (2) is used for supplying power to the display screen (3), the mainboard (1), the infrared emission module (4), the image acquisition module (6) and the infrared receiving module (5);
the display screen (3) is used for receiving the data information acquired by the image acquisition module (6) and displaying the data information in the form of images.
3. The near-infrared face recognition module of claim 2, wherein: the display screen (3) is a touch display screen (3).
4. The near-infrared face recognition module of claim 2, wherein: the communication module (11) and the display screen (3) are communicated by an RS485 communication protocol, an RS232 communication protocol or a Wiegand communication protocol.
5. The near-infrared face recognition module of claim 2, wherein: the image acquisition module (6) is a color camera.
6. The near-infrared face recognition module of claim 2, wherein: the infrared receiving module (5) is an infrared camera.
7. The near-infrared face recognition module of claim 2, wherein: the infrared emission module (4) comprises an infrared LED.
8. The near-infrared face recognition module of claim 2, wherein: the memory size of the memory (13) is larger than 4 GB.
9. The near-infrared face recognition module of claim 2, wherein: the face recognition module further comprises a card swiping module (9), and the card swiping module (9) is electrically connected with the communication module (11).
10. The near-infrared face recognition module of claim 1, wherein: the near-infrared face recognition module further comprises a wiegand interface (101), an RS485 interface (102), an RS232 interface (103) and a power interface (104) which are respectively connected with the first FFC flat cable interface (7).
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| CN201811386960.0A CN109325477A (en) | 2018-11-20 | 2018-11-20 | A kind of near-infrared face recognition module |
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| CN201811386960.0A CN109325477A (en) | 2018-11-20 | 2018-11-20 | A kind of near-infrared face recognition module |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111222443A (en) * | 2019-12-31 | 2020-06-02 | 深圳市高美迪亚电子科技有限公司 | Single-chip off-line face recognition small module |
| CN115114216A (en) * | 2021-03-18 | 2022-09-27 | 安讯士有限公司 | Controller, method and medium for reading RS485 data signal and wiegand data signal |
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