CN206178886U - Examination hall personnel's recognition device based on iris discernment - Google Patents
Examination hall personnel's recognition device based on iris discernment Download PDFInfo
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- CN206178886U CN206178886U CN201621260860.XU CN201621260860U CN206178886U CN 206178886 U CN206178886 U CN 206178886U CN 201621260860 U CN201621260860 U CN 201621260860U CN 206178886 U CN206178886 U CN 206178886U
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Abstract
The utility model provides an examination hall personnel's recognition device based on iris discernment, hold PC, teacher to hold server, switch including iris capture system, student, iris capture system includes iris CMOS camera, infrared light filling lamp, microcontroller, iris CMOS camera sets up at collection system's middle part, and encircleing all around of iris CMOS camera is equipped with infrared light filling lamp, and iris CMOS camera department still is equipped with follow -up optical target generator, and iris CMOS camera, infrared light filling lamp, follow -up optical target generator are connected with microcontroller respectively, iris capture system holds PC and switch to be connected with the student respectively, and the teacher holds the server to be connected, combine PC platform and embedded platform's characteristics in the design, use the pixel directly to transmit as the unit iris image of gathering, reduced the process of data processing and transmission, also reduced the real time transport bandwidth simultaneously, the convenient processing.
Description
Technical field
This utility model is related to iris recognition technology field, more particularly to fill based on the identification of the examination hall personnel of iris identification
Put.
Background technology
The examination examination field system managing device and its system recognized based on living body iris can effectively supervise examination, reach anti-
The purpose only practised fraud.Accurately confirm examinee's identity, the corrupt practice such as prevent from impersonating, pratice fraud, be that education department makes great efforts to solve always
Problem.Current examination hall checking is general all using modes such as identity card, fingerprint recognition and Identification of Images.
Fingerprint recognition is using biological identification technology earlier.Fingerprint letter has been contained in second generation identity card information
Breath, but the wound of finger, dry and cracked and decortication can all have influence on fingerprint recognition effect.
Face recognition system is also widely used, such as driving school's examination is exactly to adopt in this way.But portrait is known
Other method is difficult to prove effective for discriminating twinss, and face-lifting can also increase the difficulty of identification with making up.
Iris recognition technology is always treated as many years a kind of quite safe and simple biometric security measure, but existing
There are many hidden danger in the iris identification scheme and product for occurring, by iris reproduction technology, through 100 to 200 iteration weights
After multiple, the iris of an imitation can be produced by algorithm within 10 minutes.
Examination management of the prior art, generally carries out authentication using recognition of face, its shortcoming also clearly,
Portrait identification method is difficult to prove effective for discriminating twinss, and face-lifting can also increase the difficulty of identification with making up, and existing iris is known
Other device is all mostly that mobility is poor, for recognized iris is not able to verify that by the bulky of PC platform complete equipments
Whether it is living body iris；Identification information transmitting procedure is big by bandwidth contributions, it is impossible to accomplish transmission in time.
Utility model content
The purpose of this utility model is intended at least solve one of described technological deficiency.
For this purpose, the purpose of this utility model is to propose a kind of examination examination hall management system based on iris identification, utilize
Mobile terminal gathers iris information, and conveniently moving, deployment is convenient, improves existing other identity recognition devices, recognition efficiency is low,
The present situations such as error rate height, poor stability.
To achieve these goals, embodiment of the present utility model provides a kind of knowledge of the examination hall personnel based on iris identification
Other device, including iris collection device, student side PC, teacher side server, switch；The iris collection device includes rainbow
Film CMOS camera, infrared light compensating lamp, microcontroller；The iris CMOS camera is arranged on the middle part of harvester, described
The surrounding of iris CMOS camera is additionally provided with servo-actuated optical target around infrared light compensating lamp is provided with the iris CMOS camera
Generator, the iris CMOS camera, infrared light compensating lamp, servo-actuated optical target generator are connected respectively with microcontroller；Institute
State iris collection device to be connected with student side PC and switch respectively, the switch connects teacher side server.
The microcontroller includes iris capturing circuit, governor circuit and identification circuit；The iris capturing circuit, master control
Circuit is sequentially connected, and the governor circuit is also connected with voice warning circuit, display lamp；Iris capturing circuit connection iris CMOS takes the photograph
As head, the servo-actuated optical target generator of governor circuit connection.
Preferably, the infrared light compensating lamp, including infrared compensation circuit and LED, the infrared compensation circuit output
End connection LED, input connection governor circuit.
Preferably, the line and collected eye of the position that each LED lamp bead is located in the LED and collected eyeball
The angle that ball place axis is formed is 10 degree of -15 degree.
Preferably, the iris capturing circuit includes acquisition chip, the first crystal oscillator, the first electric capacity, the second electric capacity；Collection core
Connect between first clock pins and second clock pin of piece the first crystal oscillator, one end of first crystal oscillator connects the first electric capacity
One end, the other end of first crystal oscillator connects one end of the second electric capacity, the other end and the second electric capacity of first electric capacity
The other end ground connection；The serial clock pin of acquisition chip and serial-data pin connection governor circuit.
Preferably, the acquisition chip is also connected with data selection chip, and the data select the frame synchronization pin of chip, lead to
Letter clock pins, frequency modulation(PFM) pin connect respectively the corresponding pin of acquisition chip；The data select chip connection master control
Circuit.
Preferably, the iris collection device is connected by USB data line with student side PC, by netting twine with exchange
Machine is connected.
According to this utility model embodiment provide the examination hall personnel based on iris identification identifying device at least have with
Lower advantage：
1st, no matter the hardware configuration of iris collection device and servo-actuated target generator is increased in original examination hall identifying device
By the way of video recording, photo, artificial eye are still printed on contact lenss, Algorithm of Iris Recognition cannot be all broken through, be tested each time
Demonstrate,prove as living body iris checking, confidentiality height.
2nd, this device ties the flush type circuit of teacher side server, the PC platforms of student side PC and iris collection device
Structure is combined, fast operation, stores magnanimity, and conveniently moving, and deployment is convenient.
3rd, the iris capturing circuit and data select chip, and the iris image of collection is directly carried out in units of pixel
Transmission, reduces the process of data processing and transmission, while real-time Transmission bandwidth is decreased, using numeral letter during data transfer
Number, it is convenient to process.
The additional aspect of this utility model and advantage will be set forth in part in the description, partly will be from explained below
In become obvious, or by it is of the present utility model practice recognize.
Description of the drawings
Of the present utility model above-mentioned and/or additional aspect and advantage will from the description with reference to accompanying drawings below to embodiment
Become obvious and easy to understand, wherein：
The schematic diagram of the identifying device of the examination hall personnel based on iris identification that Fig. 1 is provided for this utility model embodiment；
Iris capturing in the identifying device based on the examination hall personnel of iris identification that Fig. 2 is provided for this utility model embodiment
The circuit connection block diagram of device；
Fig. 3 a are identifying device iris capturing circuit of this utility model embodiment based on the examination hall personnel of iris identification
Circuit theory diagrams；
Fig. 3 b are identifying device iris capturing circuit of this utility model embodiment based on the examination hall personnel of iris identification
Circuit theory diagrams；
Fig. 4 is that circuit of this utility model embodiment based on the identifying device governor circuit of the examination hall personnel of iris identification is former
Reason figure.
Specific embodiment
Embodiment of the present utility model is described below in detail, the example of the embodiment is shown in the drawings, wherein ad initio
Same or similar element is represented to same or similar label eventually or the element with same or like function.Below by ginseng
The embodiment for examining Description of Drawings is exemplary, it is intended to for explaining this utility model, and it is not intended that to this utility model
Restriction.
As shown in figure 1, this utility model embodiment provides a kind of identifying device of the examination hall personnel based on iris identification, bag
Iris collection device 1, student side PC 2, teacher side server 3, switch 4 are included, iris collection device 1 is taken the photograph including iris CMOS
Picture 101, infrared light compensating lamp 102, microcontroller 103；Iris CMOS camera is arranged on the middle part of harvester, and lower end is fixed
Connecting bracket, the surrounding of iris CMOS camera is additionally provided with around infrared light compensating lamp 102 is provided with iris CMOS camera 101
Servo-actuated optical target generator 104, iris CMOS camera 101, infrared light compensating lamp 102, servo-actuated 104 points of optical target generator
It is not connected with microcontroller 103；Microcontroller 103 in iris collection device 1 connects student side PC 2 by USB data line,
Also switch 4 is connected by netting twine in iris collection device 1；Switch connects respectively teacher side server 3, student side PC
2；Iris collection device 1 supports that IP network and USB are accessed, and can connect switch 4 by netting twine and support that POE powers, while
Can be powered for iris collection device 1 using USB data line connection student side PC 2, USB free drives are moved, and it is convenient to access, deployment side
Just.
Microcontroller 103 includes iris capturing circuit, governor circuit and identification circuit；Iris capturing circuit, governor circuit
It is sequentially connected, governor circuit is also connected with voice warning circuit 106, display lamp 105；The connection iris CMOS shootings of iris capturing circuit
101, the servo-actuated optical target generator 104 of governor circuit connection.
Specifically, it is servo-actuated optical target generator 104 to be made up of multiple emitting led and random triggers, it is emitting led to adopt
With to the less green glow of people's eye irritation, brightness is low, it is to avoid eyes are damaged, governor circuit control random triggers, comes
Select emitting led, tested human eye is caught, capture-process pupil and iris occur respective change.Servo-actuated optical target occurs
There is jump and regard in device, the eyeball for making testee, iris photographic head gathers normal iris image under the stimulation with moving-target,
And measured's eyeball jumps the iris image after regarding, it is then forwarded to iris identification circuit part and realizes to the two width rainbows that gathered
Film image is processed, compared and adjudicated, to determine whether being living body iris.
Infrared light compensating lamp includes infrared compensation circuit and LED, and infrared compensation circuit outfan connects LED, defeated
Enter end connection governor circuit.The line and collected eyeball of the position that each LED lamp bead is located in LED and collected eyeball
The angle that place axis is formed is 10 degree of -15 degree.Formed angle avoids eyes from looking at straight, causes pupil to zoom in or out suddenly,
There is error so as to cause the iris image for gathering, the noise spot produced when photographic head shoots is reduced using annular design.
As shown in Figure 3 a, iris capturing circuit includes acquisition chip U2, crystal oscillator Y21, electric capacity C30, electric capacity C31, electric capacity
C27, acquisition chip U2 adopt OV7620 chips, connect the between first clock pins and second clock pin of acquisition chip U2
One end of one crystal oscillator Y21, crystal oscillator Y21 connects one end of the first electric capacity C30, and the other end of the first crystal oscillator Y21 connects the second electric capacity
The other end ground connection of one end of C31, the other end of the first electric capacity C30 and the second electric capacity C31；The serial clock pipe of acquisition chip U2
Foot SCL and serial-data pin SDA connection governor circuits.
As shown in Figure 3 b, acquisition chip U2 is also connected with data and selects chip U4, data selection chip U4 selections
SN74HC151N chips, the frame synchronization pin VSYNC of chip U4, communication clock pin PCLK, frequency modulation(PFM) pin HREF difference
VSYNC pins, PCLK pins, the HREF pins of connection acquisition chip U2；Chip U4 and iris capturing chip are selected using data
U2 is directly directly transmitted the iris image of collection in units of pixel, reduces the process of data processing and transmission, together
When decrease real-time Transmission bandwidth, digital signal is adopted during data transfer, it is convenient to process.
As shown in figure 4, governor circuit includes main control unit and the memory element being connected with main control unit；Wherein main control unit
Including main control chip U11, crystal oscillator Y2, resistance R68, electric capacity C34, electric capacity C35；First clock pins of main control chip U11 and
Connect crystal oscillator Y2 between two clock pins, and one end of crystal oscillator Y2 connects one end of electric capacity C35, the other end connection electric capacity of crystal oscillator Y2
The other end ground connection of one end of C34, the other end of the first electric capacity C1 and the second electric capacity C2；Resistance R68 is connected in parallel on crystal oscillator Y2 two ends.
The serial clock pin SCL and serial-data pin SDA of main control chip U11 corresponds to respectively the serial clock pin of acquisition chip U2
SCL and serial-data pin SDA, the outfan of governor circuit is also connected with USB interface chip, and by USB student side PC is connected.
This utility model specifically includes when in use procedure below：
1st, judge whether it is living body iris.
There is jump and regard in servo-actuated optical target generator, the eyeball for making testee, iris under the stimulation with moving-target
CMOS camera gathers normal iris image, and measured's eyeball jumps the iris image after regarding, and is then forwarded to iris knowledge
Other circuit part realizes that the two width iris images to being gathered are processed, compared and adjudicated, to determine whether being living body iris；
It is to find out the center coordinate of eye pupil in two width images to the key that two width iris images are processed.It is identified as leading to after living body iris
Cross display lamp display to recognize successfully.
2nd, gather iris information to be stored.
Continue to gather iris information by iris CMOS camera, and the iris information of collection is sent to teacher side service
Device is that computer is stored.
3rd, authentication
Iris CMOS camera sends the iris information of collection to student side PC, and student takes an examination defeated in student side PC
When entering information registration checking, the iris information image of collection is sent to teacher side server, with the storage of teacher side server internal
Iris information compare, so as to complete the function of authentication.Information is compared after success, and teacher side server sends communication
Instruct and give student side PC, show certification success, student side PC can also send to iris collection device and instruct, iris capturing
The governor circuit of device receives control voice cue circuit after instruction and carries out voice message, takes an exam.
According to this utility model embodiment provide the examination hall personnel based on iris identification identifying device at least have with
Lower advantage：
1st, no matter the hardware configuration of iris collection device and servo-actuated target generator is increased in original examination hall identifying device
By the way of video recording, photo, artificial eye are still printed on contact lenss, Algorithm of Iris Recognition cannot be all broken through, be tested each time
Demonstrate,prove as living body iris checking, confidentiality height.
2nd, this device ties the flush type circuit of teacher side server, the PC platforms of student side PC and iris collection device
Structure is combined, fast operation, stores magnanimity, and conveniently moving, and deployment is convenient.
3rd, the iris capturing circuit and data select chip, and the iris image of collection is directly carried out in units of pixel
Transmission, reduces the process of data processing and transmission, while real-time Transmission bandwidth is decreased, using numeral letter during data transfer
Number, it is convenient to process.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means to combine specific features, structure, material or spy that the embodiment or example are described
Point is contained at least one embodiment of the present utility model or example.In this manual, to the schematic table of above-mentioned term
State and be not necessarily referring to identical embodiment or example.And, the specific features of description, structure, material or feature can be
Combine in an appropriate manner in any one or more embodiments or example.
Although embodiment of the present utility model has been shown and described above, it is to be understood that above-described embodiment is
Exemplary, it is impossible to it is interpreted as to restriction of the present utility model, one of ordinary skill in the art is without departing from this utility model
Principle and objective in the case of above-described embodiment can be changed in the range of this utility model, change, replace and
Modification.Scope of the present utility model is limited by claims and its equivalent.
Claims (6)
1. a kind of identifying device of the examination hall personnel based on iris identification, it is characterised in that including iris collection device, student side
PC, teacher side server, switch；The iris collection device includes iris CMOS camera, infrared light compensating lamp, microcontroller
Device；The iris CMOS camera is arranged on the middle part of harvester, and the surrounding of the iris CMOS camera surround and is provided with red
Outer light compensating lamp, is additionally provided with servo-actuated optical target generator at the iris CMOS camera, the iris CMOS camera, infrared
Light compensating lamp, servo-actuated optical target generator are connected respectively with microcontroller；The iris collection device respectively with student side PC
It is connected with switch, the switch connects teacher side server；
The microcontroller includes iris capturing circuit, governor circuit and identification circuit；The iris capturing circuit, governor circuit
It is sequentially connected, the governor circuit is also connected with voice warning circuit, display lamp；The connection iris CMOS shootings of iris capturing circuit
Head, the servo-actuated optical target generator of governor circuit connection.
2. the identifying device of a kind of examination hall personnel based on iris identification according to claim 1, it is characterised in that described
Infrared light compensating lamp, including infrared compensation circuit and LED, the infrared compensation circuit outfan connects LED, input
Connection governor circuit.
3. the identifying device of a kind of examination hall personnel based on iris identification according to claim 2, it is characterised in that described
The folder that the position that each LED lamp bead is located in LED is formed with the line of collected eyeball with collected eyeball place axis
Angle is 10 degree of -15 degree.
4. the identifying device of a kind of examination hall personnel based on iris identification according to claim 1, it is characterised in that described
Iris capturing circuit includes acquisition chip, the first crystal oscillator, the first electric capacity, the second electric capacity；First clock pins of acquisition chip and
Connect between second clock pin the first crystal oscillator, one end of first crystal oscillator connects one end of the first electric capacity, and described first is brilliant
The other end for shaking connects one end of the second electric capacity, the other end of first electric capacity and the other end ground connection of the second electric capacity；Collection
The serial clock pin of chip and serial-data pin connection governor circuit.
5. the identifying device of a kind of examination hall personnel based on iris identification according to claim 4, it is characterised in that described
Acquisition chip is also connected with data and selects chip, the data to select frame synchronization pin, communication clock pin, the frequency modulation(PFM) of chip
Pin connects respectively the corresponding pin of acquisition chip；The data select chip connection governor circuit.
6. the identifying device of a kind of examination hall personnel based on iris identification according to claim 1, it is characterised in that described
Iris collection device is connected by USB data line with student side PC, is connected with switch by netting twine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621260860.XU CN206178886U (en) | 2016-11-22 | 2016-11-22 | Examination hall personnel's recognition device based on iris discernment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621260860.XU CN206178886U (en) | 2016-11-22 | 2016-11-22 | Examination hall personnel's recognition device based on iris discernment |
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| CN206178886U true CN206178886U (en) | 2017-05-17 |
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| CN201621260860.XU Active CN206178886U (en) | 2016-11-22 | 2016-11-22 | Examination hall personnel's recognition device based on iris discernment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107451547A (en) * | 2017-07-17 | 2017-12-08 | 广东欧珀移动通信有限公司 | Identify the method and Related product of live body |
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2016
- 2016-11-22 CN CN201621260860.XU patent/CN206178886U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107451547A (en) * | 2017-07-17 | 2017-12-08 | 广东欧珀移动通信有限公司 | Identify the method and Related product of live body |
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