CN200992861Y - Alarm anti-theft door lock - Google Patents
Alarm anti-theft door lock Download PDFInfo
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- CN200992861Y CN200992861Y CN 200620167533 CN200620167533U CN200992861Y CN 200992861 Y CN200992861 Y CN 200992861Y CN 200620167533 CN200620167533 CN 200620167533 CN 200620167533 U CN200620167533 U CN 200620167533U CN 200992861 Y CN200992861 Y CN 200992861Y
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Abstract
The utility model relates to an alarming antitheft door lock, belonging to the antitheft technique. The utility model adopts a technique proposal that: an infrared-ray human face identifying electric control circuit consists of a DSP(digital signal processor), a SCRAM(synchronous dynamic RAM), a flash, a loudspeaker, a key, a motor controller, a micro DC motor, a power supply, a human face seizing infrared ray camera module, a transceiver, an infrared ray LED group, a liquid crystal display and a voice decoder; wherein the transceiver detects the infrared rays; the LED acts as the fixed light source. The DSP is built in the human face identifying module and is connected to the infrared ray camera module, the SDRAM, the flash and the liquid crystal display through an external bus first and the is connected to the voice decoder through a multipath buffer interface. The voice decoder is connected to the loudspeaker and is connected to the infrared ray LED group, the key and the motor controller through a round interface. The motor controller is connected to the micro DC motor, whereas the micro DC motor controls a clutch bolt. The utility model adopts infrared ray human face identification and has no lock hole, thus is stable and reliable in performance.
Description
Technical field
The utility model relates to a kind of alarm burglar-proof door lock, particularly relates to a kind of keyhole-free alarm burglar-proof door lock by infrared face identification, belongs to security door lockset field.
Background technology
Security door begins to enter on a large scale China's urban family from eighties of last century the nineties, and quite universal now, urban family is the security door in a family almost, and wherein safe-guard door lock is the core key part that directly influences the security door safety.The anti-technical unlocking time of national Specification A level safe-guard door lock can not be less than 1 minute; The anti-technical unlocking time of B level safe-guard door lock can not be less than 5 minutes.Although above-mentioned standard is very low, most security doors in the market still do not reach, generally just can be by light technical the opening of people in tens times in second.In recent years, security door takes place again and again in many cities is opened by the lawless person is technical, implements the case of burglary, and the safety issue of security door becomes increasingly conspicuous
Along with the fast development of electronic information technology, constantly to the development of high-tech intelligent direction, biometrics identification technology provides a kind of authentication means of high security to conventional lock for us.As the fingerprint recognition three-dimensional of Chinese utility model patent 200410011363.1 locking link gear safe-guard door lock, with the fingerprint identification technology first Application to safe-guard door lock; The fingerprint gate lock of utility model patent 200410016470.3, because there is inborn decortication in fingerprint, does wet defective such as point, refuse publishing, stability does not reach the requirement of security door, and has still kept mechanical lockhole and standby key.Recognition of face is compared with fingerprint recognition as the focus in current living things feature recognition field, and remarkable advantages such as intuitive, convenience, untouchable, friendly, user's acceptance height are arranged, and being applied on the safe-guard door lock is the work of perfection.It is chip that patent 200420023559.8 adopts digital signal processor DSP, make embedded human face identification become possibility, but failing to solve the recognition of face performance is subjected to visible light to influence bigger problem, can not be applied to the security door field of high security.
Summary of the invention
Technical problem to be solved in the utility model is, a kind of keyhole-free alarm burglar-proof door lock with infrared face recognition function is provided, and do not need standby key, and recognition performance is reliable and stable.
The utility model solves the problems of the technologies described above the technical scheme of taking, by digital signal processor DSP, synchronous dynamic random access memory SDRAM, flash memory FLASH, loudspeaker, button, electric machine controller, DC micromotor, power supply, the infrared photography module of catching facial image, the infrared receiving/transmission that is used to detect to pipe, forms infrared face as infrarede emitting diode group, LCDs and the audio coder ﹠ decoder (codec) of fixed light source and discerns electronic control circuit.The built-in face recognition module of digital signal processor DSP, be connected with LCDs with infrared photography module, synchronous dynamic random access memory SDRAM, flash memory FLASH respectively by external bus, connect audio coder ﹠ decoder (codec) by multichannel buffered serial port McBSP, audio coder ﹠ decoder (codec) connects loudspeaker, the input that connects infrarede emitting diode group, button, electric machine controller by the IO mouth, electric machine controller connects DC micromotor, DC micromotor control on-of pin.
Further, the infrared photography module is equipped with lens group and image sensor chip, and an infrared filtering eyeglass is arranged in the lens group.
Further, in the electronic control circuit part, employing+5V dc source is as main power source, and lithium battery is a reserve battery.
The beneficial effects of the utility model are, adopt infrared photography module, infrarede emitting diode group, thoroughly eliminate the influence of luminous ray in traditional recognition of face, guarantee the stability and the reliability of infrared face identification, thereby thoroughly realize no lockhole, no standby key, automatically catch, store unauthorized person and sound out the image that opens the door, and send alarm sound automatically; Infrared face recognition technology is applied on the safe-guard door lock, and intuitive and convenient has unique high security.
Description of drawings
Below in conjunction with drawings and embodiments the utility model is further specified.
Fig. 1 is the block diagram of the structure and the control DC micromotor of the utility model electronic control circuit.
Fig. 2 is the structural representation of the utility model infrared photography module.
Fig. 3 is the spectral transmittance curve synoptic diagram of the utility model infrared filtering eyeglass.
Fig. 4 is the theory diagram of on-of pin control monolock core three-dimensional link gear.
Fig. 5 is the structural representation of on-of pin in monolock core three-dimensional link gear.
Description of reference numerals:
The 1-image sensor chip, 2-infrared filtering eyeglass, the 3-lens group, the oblique tongue of 4-, 5-master's straight tongue of lock, 6-locks tongue, the straight tongue in 7-ground, 8-days straight tongues, 9-toothed disc, 10-on-of pin, 11-pinion.
The specific embodiment
Fig. 1 is the block diagram of the structure and the control DC micromotor of electronic control circuit.As shown in Figure 1, electronic control circuit is divided into inside and outside two parts, and inside comprises digital signal processor DSP, synchronous dynamic random access memory SDRAM, flash memory FLASH, button, power supply, audio coder ﹠ decoder (codec), electric machine controller, DC micromotor.The outside comprises that infrared photography module, infrarede emitting diode group, infrared receiving/transmission are to pipe, LCDs, loudspeaker.
The utility model is primary processor with the digital signal processor DSP, the built-in face recognition module of DSP, connect synchronous dynamic random access memory SDRAM, flash memory FLASH, infrared photography module and LCDs by external bus, and connect infraluminescence diode group, electric machine controller and button by the IO mouth.Present embodiment is primary processor with TMS320DM640, and highest point reason ability can reach 3200MIPS (MIPS), and its video port VP can directly connect the digital video input.
FLASH is used for storage program and fixed data, and SDRAM is used for working procedure, and the storage ephemeral data, liquid crystal display screen display menu, image and operation information.Adopting resolution ratio in the present embodiment is 176 * 220,2 inches LCDs.
The infrarede emitting diode group provides fixed light source, as fixed light source, thoroughly solve the low-light (level) problem with the infrarede emitting diode group, the illumination uniformity the when registration of guarantor's face, recognition of face, and not influenced by any of luminous ray, even all can normally stably work at night.
DSP connects the infrared photography module by video port VP, carries out the infrared face image and catches.The infrared photography module is sent to DSP with the infrared face image, carries out the recognition of face comparison by the face recognition module among the DSP, if comparison is passed through, then the IO mouth of DSP is controlled electric machine controller, and DC micromotor drives on-of pin, realizes opening the door.When unauthorized person is soundd out when opening the door, if the recognition of face comparison frequency of failure surpasses 5 times continuously, then catch, store unauthorized person and sound out the image that opens the door, be convenient to examine verification afterwards, and send alarm sound automatically.
In addition, DSP connects audio coder ﹠ decoder (codec) by multichannel buffered serial port McBSP, outputs to loudspeaker, realizes alarm sound, operation indicating voice.Button comprises registration, deletion, three buttons of record, and under the guide of operation indicating voice, order is carried out user's recognition of face registration, registration deletion and checked unauthorized person image record.Infrared receiving/transmission is used for before the detecting gate nobody being arranged to pipe, realizes automatic switching, reduces system's quiescent dissipation greatly.
Present embodiment employing+5V dc source is as power supply, and configuration reserve battery lithium battery.By real-time battery voltage monitoring, carry out the Charge Management of reserve battery, the normal working hours that guarantees reserve battery when having a power failure was above 10 days.
Fig. 2 is the structural representation of infrared photography module of the present utility model.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 described in the utility model comprises lens group 3 and image sensor chip 1, and an infrared filtering eyeglass 2 is arranged in the lens group, and infrared filtering eyeglass 2 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.Present embodiment adopts the infrared photography module of 300,000 pixels.
Fig. 3 is the spectrum transmitting rate curve of infrared filtering eyeglass, and the plane coordinates horizontal direction is a wavelength, and vertical direction is a spectral transmittance.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 filtering eyeglass is λ, then the peak wavelength of infrarede emitting diode must be greater than λ, and the peak wavelength of infrarede emitting diode is generally 940-950nm on the market, is 800nm so select the cutoff wavelength λ of infrared filtering eyeglass.
Fig. 4 is the theory diagram of on-of pin control monolock core three-dimensional link gear.General typical monolock core three-dimensional link gear is made up of straight tongue machine driving assembly, oblique tongue machine driving assembly, handle knob machine driving assembly three parts, on this basis, increases on-of pin and controls as core.Straight tongue machine driving assembly comprise a day straight tongue, main straight tongue of lock, straight three straight tongues of tongue, comprise that also straight tongue stirs bar, directly tongue spring, tongue self-lock pin directly.Tiltedly tongue machine driving assembly comprises oblique tongue, tiltedly tongue is stirred bar and oblique tongue spring.Handle knob machine driving assembly comprises outer handle, interior handle, bump tongue, lock tongue, lock tongue stirs bar, locks tongue spring and indoor knob.
Fig. 5 is the structural representation of on-of pin in monolock core three-dimensional link gear.System catches facial image by the infrared photography module, carry out detection of people's face and human eye location, extract face characteristic, and and the storage the facial image data compare, if compare successfully, digital signal processor DSP connects the input of electric machine controller by IO, the output of control electric machine controller, motor is just changeed, drive on-of pin 10, pinion 11 closes, the outer handle of hand rotation this moment, can driven gear dish 9, control main straight tongue of lock 5, straight tongue 7, day straight tongue 8, tiltedly tongue 4 indentations, realize opening the door.If DSP does not have other effective inputs in 5 seconds after opening the door, by the input of IO connection electric machine controller, the output of control electric machine controller makes the motor counter-rotating, drives on-of pin 10, and pinion 11 is thrown off.
The system chambers inward and the mode of locking a door are as follows: the interior handle in the turning cell, need not mobile on-of pin 10, and just can directly drive the spring on the clutch, control three straight tongues, oblique tongue 4 is withdrawn, and realizes opening the door.Unclamp interior handle, tiltedly tongue 4 ejects, and three straight tongues are still in the door body.Outer handle is upwards lifted, can be driven monolock core three-dimensional link gear, control three straight tongues and stretch out, realize locking a door.
If the knob in indoor rotation below the handle, is then locked tongue 6 to closing and is ejected, security door is locked, even outdoor recognition of face is compared successfully, rotate outer handle and door can not be opened.
The utility model adopts infrared photography module, infrarede emitting diode group fixed light source, the visible light influence and the low-light (level) problem of long-term puzzlement recognition of face have thoroughly been solved, the high stable reliability of infrared face identification, it is the strong guarantee that realizes no lockhole, no standby key safe-guard door lock, and can catch, store unauthorized person automatically and sound out the image that opens the door, send alarm sound automatically.The utlity model has unique high security, convenience and untouchable, can be widely applied to medium-to-high grade security door field.
Claims (4)
1. alarm burglar-proof door lock, has on-of pin, form electronic control circuit by digital signal processor DSP, synchronous dynamic random access memory SDRAM, flash memory FLASH, loudspeaker, button, electric machine controller, DC micromotor, power supply, it is characterized in that the infrared receiving/transmission that increase the infrared photography module catch facial image, is used to detect is formed infrared face identification electronic control circuit to pipe, infrarede emitting diode group, LCDs and audio coder ﹠ decoder (codec) as fixed light source; The built-in face recognition module of digital signal processor DSP, be connected with LCDs with infrared photography module, synchronous dynamic random access memory SDRAM, flash memory FLASH respectively by external bus, connect audio coder ﹠ decoder (codec), audio coder ﹠ decoder (codec) connection loudspeaker by multichannel buffered serial port McBSP, connect infrarede emitting diode group, button, electric machine controller by the IO mouth, electric machine controller connects DC micromotor, and DC micromotor connects on-of pin.
2. alarm burglar-proof door lock according to claim 1 is characterized in that the infrared photography module is equipped with lens group and image sensor chip, and an infrared filtering eyeglass is arranged in the lens group.
3. alarm burglar-proof door lock according to claim 1 is characterized in that, power supply employing+5V dc source.
4. alarm burglar-proof door lock according to claim 1 is characterized in that, also comprises standby lithium battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620167533 CN200992861Y (en) | 2006-12-18 | 2006-12-18 | Alarm anti-theft door lock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620167533 CN200992861Y (en) | 2006-12-18 | 2006-12-18 | Alarm anti-theft door lock |
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| Publication Number | Publication Date |
|---|---|
| CN200992861Y true CN200992861Y (en) | 2007-12-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200620167533 Expired - Lifetime CN200992861Y (en) | 2006-12-18 | 2006-12-18 | Alarm anti-theft door lock |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101915025A (en) * | 2010-08-06 | 2010-12-15 | 电子科技大学 | Lock clutch state acquisition circuit and radio frequency identification electronic tag integrating same |
| CN101942936A (en) * | 2010-08-06 | 2011-01-12 | 电子科技大学 | Control method of lockup clutch state collecting circuit |
| CN101205772B (en) * | 2006-12-18 | 2012-06-06 | 汉王科技股份有限公司 | Face-discrimination keyhole-free alarm burglar-proof door lock |
| CN101957909B (en) * | 2009-07-15 | 2012-09-05 | 青岛科技大学 | Digital signal processor (DSP)-based face detection method |
| CN104574745A (en) * | 2015-01-26 | 2015-04-29 | 成都美联微智科技有限公司 | Security and protection monitoring system based on physiological feature |
| CN105469484A (en) * | 2015-11-20 | 2016-04-06 | 宁波大业产品造型艺术设计有限公司 | App intelligent home lock |
| CN108648316A (en) * | 2018-05-14 | 2018-10-12 | 广东汇泰龙科技有限公司 | A kind of method for unlocking and system based on infrared detection and recognition of face |
-
2006
- 2006-12-18 CN CN 200620167533 patent/CN200992861Y/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101205772B (en) * | 2006-12-18 | 2012-06-06 | 汉王科技股份有限公司 | Face-discrimination keyhole-free alarm burglar-proof door lock |
| CN101957909B (en) * | 2009-07-15 | 2012-09-05 | 青岛科技大学 | Digital signal processor (DSP)-based face detection method |
| CN101915025A (en) * | 2010-08-06 | 2010-12-15 | 电子科技大学 | Lock clutch state acquisition circuit and radio frequency identification electronic tag integrating same |
| CN101942936A (en) * | 2010-08-06 | 2011-01-12 | 电子科技大学 | Control method of lockup clutch state collecting circuit |
| CN101942936B (en) * | 2010-08-06 | 2012-11-07 | 电子科技大学 | Control method of lockup clutch state collecting circuit |
| CN101915025B (en) * | 2010-08-06 | 2012-11-07 | 电子科技大学 | Lock clutch state acquisition circuit and radio frequency identification electronic tag integrating same |
| CN104574745A (en) * | 2015-01-26 | 2015-04-29 | 成都美联微智科技有限公司 | Security and protection monitoring system based on physiological feature |
| CN105469484A (en) * | 2015-11-20 | 2016-04-06 | 宁波大业产品造型艺术设计有限公司 | App intelligent home lock |
| CN108648316A (en) * | 2018-05-14 | 2018-10-12 | 广东汇泰龙科技有限公司 | A kind of method for unlocking and system based on infrared detection and recognition of face |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20071219 |
|
| EXPY | Termination of patent right or utility model |