CN104134265A - Intelligent building video intercom system adopting finger vein recognition - Google Patents
Intelligent building video intercom system adopting finger vein recognition Download PDFInfo
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- CN104134265A CN104134265A CN201410387002.0A CN201410387002A CN104134265A CN 104134265 A CN104134265 A CN 104134265A CN 201410387002 A CN201410387002 A CN 201410387002A CN 104134265 A CN104134265 A CN 104134265A
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- vein
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C9/00—Individual registration on entry or exit
Abstract
The invention discloses an intelligent building video intercom system adopting finger vein recognition. The intelligent building video intercom system comprises a power supply, a power supply driving circuit, a finger vein collection circuit, an SD card, an SD card interface circuit, a singlechip, an LCD display circuit, an LCD display screen, an audio output circuit, a horn, an RS 232/485 communication conversion circuit and an access controller, wherein the power supply is connected with the singlechip through the power supply driving circuit, and the finger vein collection circuit is connected with the singlechip; the SD card is connected with the singlechip through the SD card interface circuit. The singlechip transmits visual intercom information to the LCD display screen through the LCD display circuit, and then the visual intercom information is connected with the access controller through the RS 232/485 communication conversion circuit. The access controller controls the opening and closing of a door, and the singlechip controls logical communication between finger vein recognition and the circuits. According to the access control way disclosed by the invention, the finger vein recognition technology is adopted, so that the intelligent building video intercom system can accurately recognize control of users on an access system so as to guarantee safety of communities.
Description
Technical field
The invention belongs to field of biological recognition, relate more specifically to a kind of finger vein identification intelligent storied building visible intercommunication system for Intelligent Recognition.
Background technology
Access controller is new-modernization safety management system, and it integrates microcomputer automatic identification technology and modern safety management measure, and it relates to electronics, machinery, optics, computer technology, mechanics of communication, many new technologies such as biotechnology.It is to solve important department gateway to realize the effective measures that safety precaution is managed.Be suitable for various confidential departments, as bank, hotel, machine room, armory, safe care registry, cubicle, intellectual communityintellectualized village, factory etc.
Access control system is exactly the system of exit and entrance being carried out to control, whom is managed and when can pass in and out those doors, and inquiry form afterwards etc. is provided.It is to develop on traditional door lock basis, and has surmounted already simple gateway and key management, and it has developed into a set of complete access management system gradually.It is bringing into play huge effect in the Administrations such as working environment safety, personnel attendance management.
Along with scientific and technological development, people increase corresponding utility appliance on the basis of access control system can carry out elevator control, vehicles while passing control, property fire fighting monitoring, security personnel's inspection management, food and drink toll administration etc., intelligent management in real feasible region
In prior art, what great majority adopted is card managing, more advanced employing be that biotechnology is carried out verification management, and refer to that vein identification biotechnology just develops in this field.Refer to that vein identification is the one of vein identification, belong to bio-identification, refer to that vein recognition system is exactly first to obtain individual by vein identifier to refer to vein distribution plan, from referring to that vein distribution plan extracts eigenwert according to special alignment algorithm, obtain the image of finger, finger, hand back vein by infrared C CD camera, the digital picture of vein is stored in computer system, by eigenwert storage.When vein comparison, take in real time vein figure, extract eigenwert, the filtering of uses advanced, image binaryzation, refinement means are extracted feature to digital picture, with being stored in the comparison of main frame medium sized vein eigenwert, adopt complicated matching algorithm to mate vein pattern, thereby individual is carried out to identity authentication, confirm identity.
While carrying out authentication with finger vein, the characteristics of image that refers to vein obtaining, the feature just existing while referring to live body.In this system, the finger of non-living body can not get vein image feature, thereby None-identified, thereby also just cannot fake.While carrying out authentication with finger vein, what obtain is the vein image feature of finger interior, instead of the characteristics of image of finger surface.Therefore, there is not any damage due to finger surface, wearing and tearing, the cognitive disorders bringing such as dry or too wet.Carry out authentication with finger vein, while obtaining finger venous image, finger need not contact with equipment, one puts gently, can complete identification.Antihygienic problem and finger surface feature when this mode does not have hand contact arrangement may be replicated brought safety problem, and have avoided being taken as the Psychological inadaptability of examination object, also can not pollute rear None-identified because of foul simultaneously.Finger vena mode is because vein is positioned at finger interior, and the influence degree of the external factor such as temperature is negligible, is almost applicable to all users.User's acceptance is good.Except without occurring directly contact with scanner surface, the scanning process of this Noninvasive not only simply but also nature, had alleviated the resisting psychology that user may exist owing to worrying sanitation degree or use to bother.Because had the feature of vivo identification, internal feature and contactless 3 aspects above, guaranteed that user's finger vein pattern is difficult to be forged.So refer to that vein recognition system safe class is high, be particularly suitable for the place that safety requirements is high and use.But in prior art, also exist following problem to be solved: (1) belongs to interior physiological characteristic, can not wear and tear, more difficult forgery, has very high security.(2) blood vessel feature is conventionally more obvious, easily identification, and anti-interference is good.(3) can realize non-contact measurement, wholesomeness is good, is easy to accept into user.(4) be not subject to the impact of watch face scar or greasy dirt.The shortcoming that above technology exists is: collecting device has particular/special requirement, design relative complex, and manufacturing cost is high.
Summary of the invention
1, object of the present invention.
The present invention is in order to improve the safety coefficient of gate control system, employing refers to that vein identification technology controls gate control system, can improve the recognition accuracy that refers to vein by the present invention, and a kind of finger vein identification intelligent storied building visible intercommunication system for Intelligent Recognition proposing.
2, the technical solution adopted in the present invention.
Refer to vein identification intelligent storied building visible intercommunication system, comprise power supply, power driving circuit, refer to vein Acquisition Circuit, SD card, SD card interface circuit, single-chip microcomputer, LCD display circuit, LCD display, audio output circuit, loudspeaker, RS232/485 transition of communications circuit, access controller, power supply is connected with single-chip microcomputer by power driving circuit, refer to that vein Acquisition Circuit is connected with single-chip microcomputer, SD cartoon is crossed SD card interface circuit and is connected with single-chip microcomputer, single-chip microcomputer is transferred to LCD display by LCD display circuit by intercommunication visual information, by audio output circuit, audio prompt is spread out of by loudspeaker, be connected with access controller by RS232/385 change-over circuit, access controller opposite house carries out switch control, single-chip microcomputer is controlled referring to the logic communication between vein identification and circuit, the camera of single-chip microcomputer configuration OV9650 processor, resident family and visitor are referred to vein image extracts and digitized processing, its middle finger vein identification is carried out according to following steps:
The first step, training and projection refer to vein image, obtain five candidates' finger vein image by the coupling of sorter, and the best projection matrix that training obtains is as follows:
W is best projection matrix, wherein S
wand S
bbe defined as follows:
Five candidates in second step, sorter refer to find in vein image best test pattern:
A, load all finger vein image training sets, refer to that with candidate vein is corresponding;
B, utilize to merge and refer to that vein is described and from training set, extract every and refer to the deformation of vein;
C, extraction refer to the deformation of vein test pattern, are expressed as Dq;
D, refer to that vein image matches with Dq and five candidates before, find coupling key point number
The 3rd step, determine checking criterion by coupling key point number, the finger vein descriptor of setting match point number maximum is most possible item, by characteristic matching, obtains target and refers to vein image.
Preferably, access controller adopts RS485 and TCP/IP to carry out communication, and fire protection warning, Long-distance Control and Smart Home interlock are controlled, and access controller information reading manner adopts and refers to vein recognition method.
Preferably, described power module: for access controller Circuits System provides the direct supply of 12V; Also comprise fire protection warning expansion module: in the time that gate control system is damaged or damage, warning information is sent to security administrative center by access controller, or remind by fire alarm; Ethernet interface: be responsible for the communication of remote network control, simultaneously for intelligent domestic gateway provides downstream interface; Door magnetoelectricity lock module: according to the closure of relay and off state effect door magnetoelectricity lock, and the running status that detecting gate magnetoelectricity is locked at the appointed time; I/O data-interface: read the information that single-chip microcomputer refers to vein identification, transfer in access controller and process; LED module: show the running status of access controller, electromagnetic door lock, the state of Identification display information and data and network; Voice module: according to referring to vein recognition result and access control information, send voice reminder information to turnover personnel; Push-button interface: the request of opening the door and the push-botton operation of confirming that opens the door, send low and high level signal by I/O interface; RS485 interface: carry out data communication by RS232/485 communication adapter and single-chip microcomputer.
Preferably, described voicefrequency circuit mainly comprises the input and output treatment circuit of audio frequency.Because audio output signal is that voltage is the simulating signal of tens millivolts, thereby need first to carry out gain-adjusted by power amplifier, and the digital audio and video signals after the conversion of A/D change-over circuit is sent to control chip.
Preferably, the voltage of single-chip microcomputer obtains 5V by power supply adaptor transformation, and 5V voltage is obtained by low difference voltage regulator AS1117AR-3.3V dividing potential drop, and by electric capacity, its voltage is carried out to voltage stabilizing processing, thereby ensure stable 3.3V voltage to be provided and to provide 1.8V and 2.5V voltage for camera module for each components and parts and interface.
Preferably, user triggers camera and is referred to that venous information transfers to control terminal, finally triggers gate inhibition's module by control terminal, completes its action of opening the door.
3, beneficial effect of the present invention.
By access control mode of the present invention, adopt and refer to vein biological identification technology, can identify accurately user's access control system, ensure the safety of community, and reaction velocity is within 8s, improves the accuracy and the efficiency that refer to vein identification.
Brief description of the drawings
Fig. 1 is the structural drawing of finger vein identification intelligent storied building visible intercommunication system of the present invention.
Embodiment
For the auditor that the makes Patent Office especially public can be expressly understood technical spirit of the present invention and beneficial effect more, applicant elaborates the mode with embodiment below, but be not all the restriction to the present invention program to the description of embodiment, any done according to the present invention design only for pro forma but not substantial equivalent transformation all should be considered as technical scheme category of the present invention.
Embodiment
Video intercom access control system, the state that need to carry out system carries out voice reminder and voice response, and realizes speech talkback function each other.After system validation visitor's identity, send and greet language and other operation promptings to it, after the other side's identity, send " welcoming you to get back to warm family " or " welcoming your presence " as confirmed, in the time requiring the other side to reaffirm identity, play " bothering you to reaffirm identity; thanks ", this phonetic function highlights the humanization design concept of system.
Image demonstration and voice reminder, single-chip microcomputer completes after the cognitive phase that refers to vein image and need on LCD screen, show, and reminds by voice.Image demonstration comprises resident family or visitor's video image and the object information of identification.Voice messaging mainly comprises operation voice reminder and greeting.Access control order, recognition result is the control command of gate control system, single-chip microcomputer completes and refers to that its information exchange being crossed to RS232/485 communication adapter after vein recognition result transfers to access controller, acts on gate inhibition's electromagnetic mechanism.
Single-chip microcomputer is that TQS3C6410 carries the Wince6.0 operating system that includes Open CV built-in function, realizes it and refers to vein image feature extraction and identification, is shown that result and control command transfer out.
Data information memory adopts SD card will refer to vein image and recognition result stock management as memory device, also can operating system be loaded in single-chip microcomputer by SD card-based mode simultaneously.
Refer to vein identification intelligent storied building visible intercommunication system, comprise power supply, power driving circuit, refer to vein Acquisition Circuit, SD card, SD card interface circuit, single-chip microcomputer, LCD display circuit, LCD display, audio output circuit, loudspeaker, RS232/485 transition of communications circuit, access controller, power supply is connected with single-chip microcomputer by power driving circuit, refer to that vein Acquisition Circuit is connected with single-chip microcomputer, SD cartoon is crossed SD card interface circuit and is connected with single-chip microcomputer, single-chip microcomputer is transferred to LCD display by LCD display circuit by intercommunication visual information, by audio output circuit, audio prompt is spread out of by loudspeaker, be connected with access controller by RS232/385 change-over circuit, access controller opposite house carries out switch control, access controller adopts RS485 and TCP/IP to carry out communication, fire protection warning, Long-distance Control and Smart Home interlock are controlled, access controller information reading manner adopts and refers to vein recognition method.Described power module: for access controller Circuits System provides the direct supply of 12V; Also comprise fire protection warning expansion module: in the time that gate control system is damaged or damage, warning information is sent to security administrative center by access controller, or remind by fire alarm; Ethernet interface: be responsible for the communication of remote network control, simultaneously for intelligent domestic gateway provides downstream interface; Door magnetoelectricity lock module: according to the closure of relay and off state effect door magnetoelectricity lock, and the running status that detecting gate magnetoelectricity is locked at the appointed time; I/O data-interface: read the information that single-chip microcomputer refers to vein identification, transfer in access controller and process; LED module: show the running status of access controller, electromagnetic door lock, the state of Identification display information and data and network; Voice module: according to referring to vein recognition result and access control information, send voice reminder information to turnover personnel; Push-button interface: the request of opening the door and the push-botton operation of confirming that opens the door, send low and high level signal by I/O interface; RS485 interface: carry out data communication by RS232/485 communication adapter and single-chip microcomputer.The voltage of single-chip microcomputer obtains 5V by power supply adaptor transformation, and 5V voltage is obtained by low difference voltage regulator AS1117AR-3.3V dividing potential drop, and by electric capacity, its voltage is carried out to voltage stabilizing processing, thereby ensure stable 3.3V voltage to be provided and to provide 1.8V and 2.5V voltage for camera module for each components and parts and interface.Described voicefrequency circuit mainly comprises the input and output treatment circuit of audio frequency.Because audio output signal is that voltage is the simulating signal of tens millivolts, thereby need first to carry out gain-adjusted by power amplifier, and the digital audio and video signals after the conversion of A/D change-over circuit is sent to control chip.
Single-chip microcomputer is controlled referring to the logic communication between vein identification and circuit, and the camera of single-chip microcomputer configuration OV9650 processor refers to that to resident family and visitor vein image extracts and digitized processing, and its middle finger vein identification is carried out according to following steps:
The first step, training and projection refer to vein image, obtain five candidates' finger vein image by the coupling of sorter, and the best projection matrix that training obtains is as follows:
W is best projection matrix, wherein S
wand S
bbe defined as follows:
Five candidates in second step, sorter refer to find in vein image best test pattern:
A, load all finger vein image training sets, refer to that with candidate vein is corresponding;
B, utilize to merge and refer to that vein is described and from training set, extract every and refer to the deformation of vein;
C, extraction refer to the deformation of vein test pattern, are expressed as Dq;
D, refer to that vein image matches with Dq and five candidates before, find coupling key point number
The 3rd step, determine checking criterion by coupling key point number, the finger vein descriptor of setting match point number maximum is most possible item, by characteristic matching, obtains target and refers to vein image.
Claims (6)
1. one kind refers to vein identification intelligent storied building visible intercommunication system, it is characterized in that: comprise power supply, power driving circuit, refer to vein Acquisition Circuit, SD card, SD card interface circuit, single-chip microcomputer, LCD display circuit, LCD display, audio output circuit, loudspeaker, RS232/485 transition of communications circuit, access controller, power supply is connected with single-chip microcomputer by power driving circuit, refer to that vein Acquisition Circuit is connected with single-chip microcomputer, SD cartoon is crossed SD card interface circuit and is connected with single-chip microcomputer, single-chip microcomputer is transferred to LCD display by LCD display circuit by intercommunication visual information, by audio output circuit, audio prompt is spread out of by loudspeaker, be connected with access controller by RS232/385 change-over circuit, access controller opposite house carries out switch control, single-chip microcomputer is controlled referring to the logic communication between vein identification and circuit, single-chip microcomputer configuration camera, resident family and visitor are referred to vein image extracts and digitized processing, its middle finger vein identification is carried out according to following steps:
The first step, training and projection refer to vein image, obtain five candidates' finger vein image by the coupling of sorter, and the best projection matrix that training obtains is as follows:
W is best projection matrix, wherein S
wand S
bbe defined as follows:
Five candidates in second step, sorter refer to find in vein image best test pattern:
A, load all finger vein image training sets, refer to that with candidate vein is corresponding;
B, utilize to merge and refer to that vein is described and from training set, extract every and refer to the deformation of vein;
C, extraction refer to the deformation of vein test pattern, are expressed as Dq;
D, refer to that vein image matches with Dq and five candidates before, find coupling key point number
The 3rd step, determine checking criterion by coupling key point number, the finger vein descriptor of setting match point number maximum is most possible item, by characteristic matching, obtains target and refers to vein image.
2. finger vein identification intelligent storied building visible intercommunication system according to claim 1, it is characterized in that: access controller adopts RS485 and TCP/IP to carry out communication, fire protection warning, Long-distance Control and Smart Home interlock are controlled, and access controller information reading manner adopts and refers to vein recognition method.
3. finger vein identification intelligent storied building visible intercommunication system according to claim 1, is characterized in that: described power module: for access controller Circuits System provides the direct supply of 12V; Also comprise fire protection warning expansion module: in the time that gate control system is damaged or damage, warning information is sent to security administrative center by access controller, or remind by fire alarm; Ethernet interface: be responsible for the communication of remote network control, simultaneously for intelligent domestic gateway provides downstream interface; Door magnetoelectricity lock module: according to the closure of relay and off state effect door magnetoelectricity lock, and the running status that detecting gate magnetoelectricity is locked at the appointed time; I/O data-interface: read the information that single-chip microcomputer refers to vein identification, transfer in access controller and process; LED module: show the running status of access controller, electromagnetic door lock, the state of Identification display information and data and network; Voice module: according to referring to vein recognition result and access control information, send voice reminder information to turnover personnel; Push-button interface: the request of opening the door and the push-botton operation of confirming that opens the door, send low and high level signal by I/O interface; RS485 interface: carry out data communication by RS232/485 communication adapter and single-chip microcomputer.
4. finger vein identification intelligent storied building visible intercommunication system according to claim 1, is characterized in that: described voicefrequency circuit mainly comprises the input and output treatment circuit of audio frequency.Because audio output signal is that voltage is the simulating signal of tens millivolts, thereby need first to carry out gain-adjusted by power amplifier, and the digital audio and video signals after the conversion of A/D change-over circuit is sent to control chip.
5. finger vein identification intelligent storied building visible intercommunication system according to claim 1, it is characterized in that: the voltage of single-chip microcomputer obtains 5V by power supply adaptor transformation, and 5V voltage is obtained by low difference voltage regulator AS1117AR-3.3V dividing potential drop, and by electric capacity, its voltage is carried out to voltage stabilizing processing, thereby ensure stable 3.3V voltage to be provided and to provide 1.8V and 2.5V voltage for camera module for each components and parts and interface.
6. finger vein identification intelligent storied building visible intercommunication system according to claim 1, is characterized in that: user triggers camera and referred to that venous information transfers to control terminal, finally triggers gate inhibition's module by control terminal, completes its action of opening the door.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410387002.0A CN104134265A (en) | 2014-08-08 | 2014-08-08 | Intelligent building video intercom system adopting finger vein recognition |
| PCT/CN2014/094466 WO2016019680A1 (en) | 2014-08-08 | 2014-12-22 | Finger vein identification-based smart building visual intercom system |
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| CN201410387002.0A CN104134265A (en) | 2014-08-08 | 2014-08-08 | Intelligent building video intercom system adopting finger vein recognition |
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