CN101148956A - Intelligent door lock with human face identification function - Google Patents
Intelligent door lock with human face identification function Download PDFInfo
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- CN101148956A CN101148956A CNA2006101131621A CN200610113162A CN101148956A CN 101148956 A CN101148956 A CN 101148956A CN A2006101131621 A CNA2006101131621 A CN A2006101131621A CN 200610113162 A CN200610113162 A CN 200610113162A CN 101148956 A CN101148956 A CN 101148956A
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Abstract
The present invention is the technological scheme of intelligent door lock with face recognizing function. The intelligent door lock has one infrared imaging module, one infrared LED, one DSP, one SDRAM, one flash memory, one LCD, one power source, buttons, one locking execution mechanism, one emergency key and one lock bolt. The DSP is connected to the infrared imaging module, the SDRAM, the flash memory and the LCD through the external bus; and connected to the button in the inner lock body, the button in the outer lock body, the infrared LED and the locking execution mechanism through the I/O interface. The intelligent door lock is powered with a battery. The locking execution mechanism is connected to the lock bolt, and the emergency key can control the lock bolt directly. The present invention is intuitive, safe, stable and practical, and may be applied in household, office and other fields.
Description
Technical field
The present invention relates to a kind of intelligent door lock, particularly relate to a kind of intelligent door lock of the people's of identification face, belong to field of lockset.
Background technology
Along with the fast development of electronic information technology, conventional lock is constantly to the development of high-tech intelligent direction, as Fingerprint Lock.Fingerprint Lock employing fingerprint recognition technology is by extracting the user fingerprints identifying user identity.Recognition of face is compared with fingerprint recognition as the hot issue in living things feature recognition field, is applied to the door lock field, and is directly perceived friendly, but the operand of traditional recognition of face is big, computational complexity is high, to having relatively high expectations of hardware resource.It is chip that patent CN2718676Y adopts digital signal processor DSP, make embedded human face identification become possibility, but have two unsolved root problems, the one, it is bigger that the recognition of face performance is influenced by visible light, illumination is had constraint requirements, and applied environment is very limited; The 2nd, operand and power consumption are too big, reach about 2W, can only adopt the additional power source power supply, can not adopt powered battery, cause recognition of face to be applied on the door lock.
Summary of the invention
Technical problem to be solved by this invention is, provides a kind of and can realize powered battery, thoroughly solves traditional recognition of face and be subjected to luminous ray to influence the intelligent door lock with face identification functions with the illumination constraint.
The technical scheme that technical solution problem of the present invention is taked is that this device comprises infrared photography module, infrarede emitting diode LED, digital signal processor DSP, synchronous dynamic random access memory SDRAM, flash memory FLASH, LCD LCD, power supply, button, locking execution mechanism, emergency key and dead bolt; Connect as follows: digital signal processor DSP is connected with infrared photography module, synchronous dynamic random access memory SDRAM, flash memory FLASH and LCD LCD respectively by external bus, digital signal processor DSP by input and output IO mouth respectively with interior lock body in registration button, deletion button be connected with the button that powers in the outer lock body, and connecting infrarede emitting diode LED, locking execution mechanism, locking execution mechanism connects dead bolt.
The infrared photography module is equipped with lens group, image sensor chip, places an infrared fileter between lens group and the image sensor chip, is used for the block visible light line, and IR is passed through smoothly.
Infrarede emitting diode LED assists light filling, thoroughly solves the low-light (level) problem, improves the stability of infrared imaging.
LCD LCD goes up and shows an alignment box that is used to be full of user's head portrait, and the alignment box size is less, with literal and auditory tone cues user, own head portrait is full of this alignment box.
Power supply is a battery supply, and by real-time battery voltage monitoring, the alarm user changes battery.
The invention has the beneficial effects as follows, adopt infrared photography module, infrarede emitting diode LED, solve the influence of luminous ray in traditional recognition of face, by on LCD LCD, adopting the head portrait alignment box of reduced size, optimize algorithm, reduce operand and power consumption, adopt the button design that powers on, reduce quiescent dissipation, and make full use of the high-performance and the low-power consumption of digital signal processor DSP technology, and realize powered battery, face recognition technology is applied on the door lock, intuitive and reliable, have unique safety.
Description of drawings
The present invention is further described below in conjunction with drawings and embodiments.
Fig. 1 is the system architecture schematic diagram of intelligent door lock of the present invention.
Fig. 2 is the structural representation of the infrared photography module of intelligent door lock of the present invention.
Fig. 3 is the infrared fileter spectral transmittance curve map of intelligent door lock of the present invention.
When Fig. 4 was to use apparatus of the present invention, user's head portrait departed from the schematic diagram of LCD alignment box.
When Fig. 5 was to use apparatus of the present invention, user's head portrait was full of the schematic diagram of LCD alignment box.
Fig. 6 is that a kind of digital signal processor DSP hardware of intelligent door lock of the present invention is realized block diagram.
The specific embodiment
As shown in Figure 1, apparatus of the present invention are made of interior lock body and outer lock body.Comprise power supply, registration button and deletion button in the interior lock body.The registration button starts the facial image registration, and the deletion button starts the facial image deletion, and power supply is a battery supply, adopts alkaline battery, Ni-MH battery or lithium battery power supply.
Comprise digital signal processor DSP, infrared photography module, infrarede emitting diode LED, synchronous dynamic random access memory SDRAM, flash memory FLASH, LCD LCD, locking execution mechanism and the button that powers in the outer lock body.The present invention is primary processor with the digital signal processor DSP, and DSP connects synchronous dynamic random access memory SDRAM and flash memory FLASH by external bus, and FLASH is used for storage program and fixed data, and SDRAM is used for working procedure, and the storage ephemeral data.DSP connects LCD by external bus, LCD display menu, image and operation information.DSP connects the infrared photography module by external bus, carries out the infrared face image and catches.Input and output IO mouth control infrarede emitting diode LED, infrarede emitting diode LED assists light filling, catches facial image, be sent to DSP and carry out the recognition of face comparison, if pass through, then the IO interface of DSP is controlled locking execution mechanism, locking execution mechanism control dead bolt is realized opening the door.Dead bolt is installed on the door-plate.Emergency key also can be controlled dead bolt and directly open the door.Simultaneously, DSP carries out battery voltage monitoring, and the alarm user changes battery in advance.
Button in the outer lock body adopts the button design that powers on.Switch on by button during use, carry out the electrification reset mode, make the quiescent dissipation of whole system reach minimum state.
Fig. 2 is the structural representation of infrared photography module.The operating principle of infrared photography module and common shooting module are basic identical, all be to utilize light to impinge upon on the object reflection through eyeglass imaging to the image sensor chip, difference is, common shooting module is to intercept infrared rays, the permission luminous ray passes through, and the infrared photography module is the block visible light line, allows infrared rays to pass through.Infrared photography module of the present invention comprises lens group and image sensor chip, and between lens group and image sensor chip, increase an infrared filter (InfraredFilter), infrared filter can the block visible light line, allows infrared rays to pass through smoothly.Adopt the infrared photography module to make the shooting of people's face not rely on visible light, the light that has solved in traditional recognition of face influences problem, and has simplified processing such as image preliminary treatment, light compensation in algorithm, has reduced algorithm operation quantity.
Fig. 3 is an infrared fileter spectral transmittance curve map.The wavelength of visible light scope approximately is 400-700nm, and 700-1200nm approximately is near infrared light (near infrared) zone.If the cutoff wavelength of infrared fileter is λ, then the peak wavelength of the infrared LED of light filling is greater than λ, the peak wavelength of infrared LED is generally 940-950nm on the market, so selecting the cutoff wavelength λ of infrared fileter is 850nm, the spectrum transmitting rate curve of infrared fileter as shown in Figure 3, the plane coordinates horizontal direction is a wavelength, and vertical direction is a spectral transmittance.
Fig. 4, Fig. 5 are the use schematic diagram of LCD LCD alignment box.The recognition of face operand mainly concentrates on the detection of people's face, two links in human eye location, accounts for more than 80% of whole operand.An alignment box is set on LCD, and alignment box fixedly is presented at the central authorities of LCD, and with literal and voice mode prompting user, people's face is full of alignment box, by reducing resolution ratio, shorten the time that people's face detects, people's face is located, to reduce algorithm integral operation amount to facial image.The size of LCD resolution ratio is comprehensively determined according to algorithm operation quantity, recognition performance and user degree easy to use.When the user used LCD, as shown in Figure 4, head portrait departed from alignment box, and LCD " please is full of alignment box with people's face with literal and auditory tone cues user! ", the user adjusts the position according to prompting, face is full of alignment box, as shown in Figure 5.
Fig. 6 is that a kind of hardware of signal processor DSP of the present invention is realized block diagram.Present embodiment is primary processor with TMS320DM64X, and highest point reason ability can reach 4800MIPS (MIPS).Its video port can directly connect video inputs or video output terminals, and adopting resolution ratio in the present embodiment is 176 * 220,2 inches the LCD module and the infrared photography module of 300,000 pixels.By external memory interface, connect SDRAM and FLASH.Three general input and output GPIO interfaces connect the registration button respectively, delete button, button powers on.A GPIO interface, the light on and off of control infrared LED.A GPIO interface, the control locking execution mechanism realizes opening the door.Battery supply, for whole system provides needed DSP kernel, peripheral hardware power supply, and battery voltage monitoring and outage control automatically.
The present invention adopts powered battery, and face recognition technology is applied on the door lock, utilizes infrared photography module and infrared LED light filling, has fully improved the performance of infrared imaging, has thoroughly solved visible light influence and low-light (level) problem.Apparatus of the present invention identification stability and practicality improve greatly, and safety directly perceived has unique convenience and untouchable, can be widely applied to fields such as family, office, industry.
Claims (5)
1. the intelligent door lock with face identification functions is characterized in that: comprise infrared photography module, infrarede emitting diode LED, digital signal processor DSP, synchronous dynamic random access memory SDRAM, flash memory FLASH, LCD LCD, power supply, button, locking execution mechanism, emergency key and dead bolt; Connect as follows: digital signal processor DSP is connected with infrared photography module, synchronous dynamic random access memory SDRAM, flash memory FLASH and LCD LCD respectively by external bus, digital signal processor DSP by input and output IO mouth respectively with interior lock body in registration button, deletion button be connected with the button that powers in the outer lock body, and connecting infrarede emitting diode LED, locking execution mechanism, locking execution mechanism connects dead bolt.
2. intelligent door lock according to claim 1 is characterized in that: the infrared photography module is equipped with lens group and image sensor chip.
3. intelligent door lock according to claim 2 is characterized in that: place an infrared fileter between the lens group of infrared photography module and the image sensor chip.
4. intelligent door lock according to claim 1 is characterized in that: an alignment box that is used to be full of user's head portrait is set on the LCD LCD.
5. intelligent door lock according to claim 1 is characterized in that: the employing battery is a power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006101131621A CN101148956A (en) | 2006-09-18 | 2006-09-18 | Intelligent door lock with human face identification function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006101131621A CN101148956A (en) | 2006-09-18 | 2006-09-18 | Intelligent door lock with human face identification function |
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| Publication Number | Publication Date |
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| CN101148956A true CN101148956A (en) | 2008-03-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNA2006101131621A Pending CN101148956A (en) | 2006-09-18 | 2006-09-18 | Intelligent door lock with human face identification function |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102081813A (en) * | 2010-12-13 | 2011-06-01 | 徐国元 | Face identification intelligent safety door |
| WO2013063744A1 (en) * | 2011-10-31 | 2013-05-10 | Guo Jun | Personal mini-intelligent terminal with combined verification electronic lock |
| CN101440676B (en) * | 2008-12-22 | 2013-10-16 | 北京中星微电子有限公司 | Intelligent anti-theft door lock based on camera and warning processing method thereof |
| CN104408802A (en) * | 2014-11-26 | 2015-03-11 | 苏州福丰科技有限公司 | Intelligent entrance guard system based on human face identification |
| CN104574597A (en) * | 2014-12-30 | 2015-04-29 | 苏州福丰科技有限公司 | Face recognition door lock system with lighting function |
| CN104594756A (en) * | 2014-11-27 | 2015-05-06 | 苏州福丰科技有限公司 | Safe box based on human ear recognition |
| CN104599364A (en) * | 2014-12-31 | 2015-05-06 | 苏州福丰科技有限公司 | Wireless access control system |
| CN107675952A (en) * | 2017-10-31 | 2018-02-09 | 南京东屋电气有限公司 | A kind of lockset with infrared image acquisition device |
-
2006
- 2006-09-18 CN CNA2006101131621A patent/CN101148956A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101440676B (en) * | 2008-12-22 | 2013-10-16 | 北京中星微电子有限公司 | Intelligent anti-theft door lock based on camera and warning processing method thereof |
| CN102081813A (en) * | 2010-12-13 | 2011-06-01 | 徐国元 | Face identification intelligent safety door |
| CN102081813B (en) * | 2010-12-13 | 2013-05-15 | 徐国元 | Face identification intelligent safety door |
| WO2013063744A1 (en) * | 2011-10-31 | 2013-05-10 | Guo Jun | Personal mini-intelligent terminal with combined verification electronic lock |
| TWI470144B (en) * | 2011-10-31 | 2015-01-21 | ||
| CN104408802A (en) * | 2014-11-26 | 2015-03-11 | 苏州福丰科技有限公司 | Intelligent entrance guard system based on human face identification |
| CN104594756A (en) * | 2014-11-27 | 2015-05-06 | 苏州福丰科技有限公司 | Safe box based on human ear recognition |
| CN104574597A (en) * | 2014-12-30 | 2015-04-29 | 苏州福丰科技有限公司 | Face recognition door lock system with lighting function |
| CN104599364A (en) * | 2014-12-31 | 2015-05-06 | 苏州福丰科技有限公司 | Wireless access control system |
| CN107675952A (en) * | 2017-10-31 | 2018-02-09 | 南京东屋电气有限公司 | A kind of lockset with infrared image acquisition device |
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Application publication date: 20080326 |