CN109281265A - The gate system of fingerprint recognition - Google Patents
The gate system of fingerprint recognition Download PDFInfo
- Publication number
- CN109281265A CN109281265A CN201811315605.4A CN201811315605A CN109281265A CN 109281265 A CN109281265 A CN 109281265A CN 201811315605 A CN201811315605 A CN 201811315605A CN 109281265 A CN109281265 A CN 109281265A
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- China
- Prior art keywords
- circuit
- cortex
- arm processor
- fingerprint
- above arm
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F13/00—Arrangements for obstructing or restricting traffic, e.g. gates, barricades ; Preventing passage of vehicles of selected category or dimensions
- E01F13/04—Arrangements for obstructing or restricting traffic, e.g. gates, barricades ; Preventing passage of vehicles of selected category or dimensions movable to allow or prevent passage
-
- 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
- G06V40/1365—Matching; Classification
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Multimedia (AREA)
- Theoretical Computer Science (AREA)
- Collating Specific Patterns (AREA)
- Image Input (AREA)
Abstract
The gate system of fingerprint recognition, including power supply, power driving circuit, fingerprint collecting circuit, SD card, SD card interface circuit, the above arm processor of cortex A8, LCD display circuit, LCD display, audio output circuit, loudspeaker, RS232/485 communicates conversion circuit, access controller, power supply is connected by power driving circuit with the above arm processor of cortex A8, fingerprint collecting circuit is connected with the above arm processor of cortex A8, SD card is connected by SD card interface circuit with the above arm processor of cortex A8, intercommunication visual information is transferred to LCD display by LCD display circuit by the above arm processor of cortex A8, audio prompt is passed through into loudspeaker by audio output circuit Outflow, the above arm processor of cortex A8 control the logic communication between fingerprint recognition and circuit, and the above arm processor of cortex A8 configures near infrared light led camera, carry out fingerprint image extraction and digitized processing to resident and visitor.
Description
Technical field
The present invention relates to the gate systems of fingerprint recognition, belong to third generation technical field of biometric identification.
Background technique
Gate is a kind of channel barrier device (channel management equipment), for managing the stream of people and specification pedestrian discrepancy, mainly
Applied to subway gate system, charge ticket check gate system.Its most basic most crucial function is to realize that primary passes through a people,
It can be used for various charge, at the access road of gate inhibition's occasion.According to the difference of the control mode to machine core, it is divided into mechanically, partly
Self-action, full rotation type.Auto-manual system can be called electrodynamic type by some manufacturers, and full rotation type is called self-action.It is mechanically
The operating of body (being connected with machine core) is blocked by manpower control, mechanical position limitation controls the stopping of machine core；Auto-manual system is to pass through electricity
Magnet controls the operating and stopping of machine core；Full rotation type is the operating and stopping that machine core is controlled by motor.Pass through control
The operating and stopping of machine core, so that further the opening and closing of body are blocked in control.According to machine core contained by same gate and block
The difference of resistance body quantity, gate can be divided into single machine core (blocking body comprising 1 machine core and 1) and Double-machine-core (comprising 2 machine cores and
2 are blocked body, symmetrical form).According to the difference blocked body He block mode, tripod turnstile, swing turnstile, the wing can be divided into
Lock, translation turnstile, turnstile, in-line turnstile etc..
In the prior art, most of using card managing, it is more advanced to be verified using biotechnology
Management, and fingerprint recognition biotechnology has just developed in this field.When carrying out authentication with fingerprint, acquisition is fingerprint
Characteristics of image.And the Psychological inadaptability for being taken as and examining object is avoided, the influence degree of the external factor such as temperature can be ignored not
Meter, while having ten fingers, it is suitable for almost all users.User's acceptance is good.Scanning process is not only simple but also naturally, alleviates
User's resisting psychology that may be present due to worry sanitation degree or using trouble.The fingerprint characteristic of user is difficult pseudo-
It makes.So fingerprint recognition system security level is high, the place high particularly suitable for safety requirements is used.Have compared to the prior art
Following advantages: (1) easy to use, wholesomeness is good, is easy to as user's receiving.(2) the not influence vulnerable to watch face scar or greasy dirt.
The above technology has the drawback that: acquisition equipment has particular/special requirement, designs relative complex, manufacturing cost height.
Summary of the invention
The purpose of the present invention.
The present invention is exactly the difference for employee and visitor, allows employee using fingerprint, visitor is checked card using identity card, and is mentioned
The gate system of fingerprint recognition out.
The technical solution adopted in the present invention.
The gate system of fingerprint recognition, including power supply, power driving circuit, fingerprint collecting circuit, SD card, SD card interface electricity
Road, cortexA8 or more arm processor, LCD display circuit, LCD display, audio output circuit, loudspeaker, RS232/485 are logical
Believe that conversion circuit, access controller, power supply are connected by power driving circuit with cortexA8 or more arm processor, fingerprint is adopted
Collector is connected with cortexA8 or more arm processor, and SD card passes through SD card interface circuit and cortexA8 or more arm processor
It is connected, intercommunication visual information is transferred to LCD display by LCD display circuit by cortexA8 or more arm processor, passes through sound
Frequency output circuit spreads out of audio prompt by loudspeaker, and cortexA8 or more arm processor is between fingerprint recognition and circuit
Logic communication is controlled, and cortexA8 or more arm processor configures near infrared light led camera, is carried out to resident and visitor
Fingerprint image extracts and digitized processing, and wherein fingerprint recognition follows the steps below:
The first step, training and projection fingerprint image obtain five candidate fingerprint images by the matching of classifier, and training obtains
Optimized image feature；
Best test image is found in five candidate fingerprint images in second step, classifier；
Third step is determined verifying criterion by matching key point number, and the setting maximum fingerprint descriptor of match point number is most
Possible item obtains target fingerprint image by characteristic matching.
Preferably, the power module: the DC power supply of 12V is provided for access controller circuit system；Ethernet connects
Mouthful: it is responsible for the information transmission of remote network control, while provides downstream interface for intelligent domestic gateway；Voice module: according to finger
Line recognition result and access control information, to disengaging, personnel issue voice reminder information；Push-button interface: opening the door, it is true to request and open the door
The push-botton operation recognized sends low and high level signal by I/O interface.
Preferably, the voicefrequency circuit mainly includes that audio outputs and inputs processing circuit.Due to audio output signal
It is the analog signal that voltage is more than ten millivolts, thus power amplifier need to be first passed through and carry out gain adjustment, and A/D conversion circuit is turned
Digital audio and video signals after changing are transmitted to control chip.
Preferably, the voltage of cortexA8 or more arm processor obtains 5V by power supply adaptor transformation, and by 5V voltage
It is divided and is obtained by low difference voltage regulator AS1117AR-3.3V, and its voltage is carried out by steady pressure treatment by capacitor, thus
Guarantee to provide stable 3.3V voltage for each component and interface and provides 1.8V and 2.5V voltage for camera module.
1, beneficial effects of the present invention:
Fingerprint bio identification technology is used through the invention, can accurately identify user identity, and reaction speed is within 2s,
It is suitable for the more place of number, improves the accuracy and efficiency of fingerprint recognition.
Detailed description of the invention:
Fig. 1 is the structural schematic diagram of terminal of the present invention；
Fig. 2 is PC card sender structural schematic diagram.
Specific embodiment:
Gate system passes through fingerprint gate system, typing fingerprint.When fingerprint collecting unit 3 is abnormal, CPU will be switched to fingerprint record
Enter system, by both gate system alternate runs and in conjunction with image gate system, after through fingerprint, simultaneously
CPU recalls the image in resource data pond in contrast, and image similarity reaches ability typing visitor information after preset value, Fang Keduo
Memberization, validation, accuracy.
Gate system in the present invention also passes through fingerprint collecting unit, can flexibly select according to the actual situation when installing, using
The typing mode of gate system is selected, and when fingerprint collecting unit normal operation, it can be issued and be mentioned by voice broadcast unit
Show, convenient interviewed guest person uses.
The above is only a preferred embodiment of the present invention, protection scope of the present invention is not limited merely to above-described embodiment,
All technical solutions belonged under thinking of the present invention all belong to the scope of protection of the present invention.It should be pointed out that for the art
For those of ordinary skill, several improvements and modifications without departing from the principles of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (5)
1. the gate system of fingerprint recognition, it is characterised in that: including power supply, power driving circuit, fingerprint collecting circuit, SD card,
SD card interface circuit, the above arm processor of cortex A8, LCD display circuit, LCD display, audio output circuit, loudspeaker,
Power supply is connected by power driving circuit with the above arm processor of cortex A8, fingerprint collecting circuit and cortex A8 or more
Arm processor is connected, and SD card is connected by SD card interface circuit with the above arm processor of cortex A8, cortex A8 or more
Intercommunication visual information is transferred to LCD display by LCD display circuit by arm processor, by audio output circuit by audio
Prompt is spread out of by loudspeaker, and the above arm processor of cortex A8 controls the logic communication between fingerprint recognition and circuit
System, the above arm processor of cortex A8 configure camera, carry out fingerprint image extraction and digitized processing to resident and visitor.
2. the gate system of fingerprint recognition according to claim 1, it is characterised in that: Ethernet interface: being responsible for telenet
The information transmission of network control, I/O data-interface: the information of the above arm processor fingerprint recognition of cortex A8 is read, according to finger
Line recognition result, to disengaging, personnel issue voice reminder information.
3. the gate system of fingerprint recognition according to claim 1, it is characterised in that: the voicefrequency circuit mainly includes sound
Frequency outputs and inputs processing circuit.Since audio output signal is the analog signal that voltage is more than ten millivolts, thus need to first lead to
It crosses power amplifier and carries out gain adjustment, and the digital audio and video signals after the conversion of A/D conversion circuit are transmitted to control chip.
4. the gate system of fingerprint recognition according to claim 1, it is characterised in that: the above arm processor of cortex A8
Voltage by power supply adaptor transformation obtain 5V, and by 5V voltage by low difference voltage regulator AS1117AR-3.3V divide
Pressure obtains, and its voltage is carried out steady pressure treatment by capacitor, to guarantee to provide stable 3.3V for each component and interface
Voltage and 1.8V and 2.5V voltage is provided for camera module.
5. card sender is PC computer, database corresponding finger print information can be written, and use identical encryption with terminal
Secret key.The present invention uses hand fingerprint identification technology, and there is contactless identity to be verified, and security performance is high, easy to use,
ARM plate has high-performance, and high reliability, low energy consumption, equipment is easy to maintain, finger print data after encryption on storing data library,
Increase the safety of total system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811315605.4A CN109281265A (en) | 2018-11-07 | 2018-11-07 | The gate system of fingerprint recognition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811315605.4A CN109281265A (en) | 2018-11-07 | 2018-11-07 | The gate system of fingerprint recognition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109281265A true CN109281265A (en) | 2019-01-29 |
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ID=65174953
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811315605.4A Pending CN109281265A (en) | 2018-11-07 | 2018-11-07 | The gate system of fingerprint recognition |
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| Country | Link |
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| CN (1) | CN109281265A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104250956A (en) * | 2013-06-28 | 2014-12-31 | 青岛联合创新技术服务平台有限公司 | An intelligent barrier control system |
| CN204940161U (en) * | 2015-07-29 | 2016-01-06 | 郑州正一实业有限公司 | A kind of intelligent walkway banister |
| CN206800262U (en) * | 2017-06-05 | 2017-12-26 | 昱瑾网络科技(上海)有限公司 | A kind of intelligent personnel access lock based on wireless signal |
| CN107826913A (en) * | 2017-11-30 | 2018-03-23 | 常熟安智生物识别技术有限公司 | A kind of terraced control system using fingerprint recognition |
| CN108091004A (en) * | 2016-11-22 | 2018-05-29 | 常熟安智生物识别技术有限公司 | It is a kind of to be prevented using fingerprint recognition for the scheme checked card |
-
2018
- 2018-11-07 CN CN201811315605.4A patent/CN109281265A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104250956A (en) * | 2013-06-28 | 2014-12-31 | 青岛联合创新技术服务平台有限公司 | An intelligent barrier control system |
| CN204940161U (en) * | 2015-07-29 | 2016-01-06 | 郑州正一实业有限公司 | A kind of intelligent walkway banister |
| CN108091004A (en) * | 2016-11-22 | 2018-05-29 | 常熟安智生物识别技术有限公司 | It is a kind of to be prevented using fingerprint recognition for the scheme checked card |
| CN206800262U (en) * | 2017-06-05 | 2017-12-26 | 昱瑾网络科技(上海)有限公司 | A kind of intelligent personnel access lock based on wireless signal |
| CN107826913A (en) * | 2017-11-30 | 2018-03-23 | 常熟安智生物识别技术有限公司 | A kind of terraced control system using fingerprint recognition |
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Application publication date: 20190129 |
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