CN201765597U - Recognition device with double-finger fingerprint collection function - Google Patents
Recognition device with double-finger fingerprint collection function Download PDFInfo
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- CN201765597U CN201765597U CN2010202819541U CN201020281954U CN201765597U CN 201765597 U CN201765597 U CN 201765597U CN 2010202819541 U CN2010202819541 U CN 2010202819541U CN 201020281954 U CN201020281954 U CN 201020281954U CN 201765597 U CN201765597 U CN 201765597U
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Abstract
The utility model relates to a recognition device with the double-finger fingerprint collection function. The optical double-finger fingerprint collector comprises an LED light source, a trapezoid prism, an imaging lens, an image collection unit and a data transmission connection base. The trapezoid prism is mounted at the upper part of a trapezoid shell; an optical lens and the image collection unit are mounted at the lower part of the trapezoid shell; a main board of the image collection unit is mounted on the bottom face of the trapezoid bottom face; the area of the large end surface of the trapezoid prism is slightly greater than the area sum of the fingerprints of two fingers; the small end surface is the light ray incidence surface of the LED light source; the upper side is a silk screen surface; and the lower side is a light ray ejection surface containing the image information for collecting the double-finger fingerprints. The utility model adopts a modularized design, has the easy expansion function, improves the management level and reliability, overcomes the defect of large volume of the traditional double-finger fingerprint collector, saves cost, can independently finish the functions of collection and comparison of the user double-finger fingerprints, in-out record storage, machine removal and abnormal door-opening alarm, and improves the fingerprint collection velocity and recognition precision.
Description
Technical field
The utility model relates to method or the device that the applying electronic circuit carries out fingerprint recognition, particularly relates to a kind of collection, differentiates two pair recognition devices that refer to the fingerprint collecting function that have that refer to fingerprint and realize Target Recognition with its pair finger fingerprint.
Background technology
Fingerprint identification technology has convenience, reliable, non-infringement and the lower characteristics of cost, and the user fingerprints data allocations to corresponding fingerprint verifying apparatus, can be uploaded fingerprint in real time and pushed record, generates fingerprint and pushes form, for the accident of tracing provides foundation.But existing volume and aspect such as fingerprint recognition system structure such as fingerprint collecting, fingerprint algorithm, fingerprint collecting is also very imperfect.How to improve fingerprint and differentiate speed, reduce misclassification rate, the reject rate of fingerprint recognition, and the miniaturization of fingerprint acquisition device, the expansion in fields such as work attendance, gate inhibition, night watching, consumption, banks to fingerprint identification function all remains further to be furtherd investigate.Especially fingerprint recognition is required the department tighter, that accuracy of identification is higher, for example prison, customs, civil aviaton, finance, port etc. do not see have that comparison speed is fast, misclassification rate is low, reject rate is low, volume is little, multi-functional fingerprint identification device as yet.
Summary of the invention
Technical problem to be solved in the utility model is the defective that remedies above-mentioned prior art, and a kind of two recognition devices that refer to the fingerprint collecting function that have are provided.
Technical matters of the present utility model is solved by the following technical programs.
This recognition devices with two finger fingerprint collecting functions, comprise fingerprint capturer, control module, external communication interface, human-computer interaction interface, and output control circuit, described control module respectively with fingerprint capturer, external communication interface, human-computer interaction interface, and output control circuit connects.
This characteristics with recognition device of two finger fingerprint collecting functions are:
Described fingerprint capturer is the two fingerprint capturers that refer to of optics, described optics is two refer to fingerprint capturer comprise housing, be used for to the finger illumination of being gathered led light source, be arranged on Dove prism, imaging lens and the image acquisition units on the systematic optical axis of being sequentially arranged in the housing, and data transmission Connection Block.Can independently finish two fingerprint registration, the two fingerprint collectings that refer to of user of referring to of user.
Described housing is irregular prismatoid, the upper surface of prismatoid housing is for gathering the inclined-plane of fingerprint, described Dove prism is installed in the top of prismatoid housing, imaging lens and image acquisition units are installed in the prismatoid lower part of frame, and the mainboard of described image acquisition units is installed in the bottom surface of prismatoid.Described image acquisition units is arranged on the image planes of imaging lens, image is presented on the image acquisition units photosensitive array in the light that both hands refer to information in fingerprint with gathering, and convert electric signal to, it is clear that the both hands that will be gathered by described control module refer to that fingerprint image manifests, and clearly both hands dactylus line is separated from fingerprint image.
The large end face of described Dove prism promptly is the upper surface of prismatoid housing, it is both hands fingerprint finger-type acquisition platform, area is slightly larger than the fingerprint area sum of two fingers, the small end face of described Dove prism is that the light of described led light source is injected face, described led light source is arranged on described small end face below, the upper side of described Dove prism is the silk-screen face, the downside of described Dove prism is to comprise to gather the light outgoing plane that both hands refer to information in fingerprint, and the collection both hands that comprise of ejaculation refer to that the light direct projection of information in fingerprint is to imaging lens.
Technical matters of the present utility model is solved by following further technical scheme.
Described image acquisition units is a cmos sensor.
Preferably, described cmos sensor is that resolution is the color cmos sensor of 1,300,000 pixels.
The large end face of described Dove prism and the angle of downside are 60 °, and the angle of large end face and upper side is 58 °, and the angle of small end face and downside is 120 °, and the angle of small end face and upper side is 122 °.
Described led light source is the light emitting diode of visible light, light source density is made up of 2 luminescence units, be arranged in the inside of housing according to the value of illumination intensity, the power supply of described led light source and ground are respectively by lead from the main board power supply of described image acquisition units and altogether.
Lens set in the described imaging lens is the small light spot lens set of the spherical aberration of having eliminated material own, chromatic dispersion, coma.
The angle of described cmos sensor and system's key light face is 9 °.
Technical matters of the present utility model is solved by following further again technical scheme.
Described control module adopts the master-slave mode based on dual-CPU architecture, comprises main control unit and connected from the control unit; When host CPU breaks down cisco unity malfunction, still can carry out necessary work from CPU, to improve the security of system.
Described main control unit is the CPU of 32 Embedded RISC chip cores of ARM company design, predominant frequency 500MHz, be provided with two fingerprint collecting unit, two finger fingerprint comparisons unit, data communication unit, data storage cell and output control units of referring to, main control unit is connected with fingerprint capturer, external communication interface respectively, is used to realize two refer to fingerprint collecting, two finger fingerprint comparison, data communication, data storage and output controls;
Described is 8 CMOS microcontroller AT89S52 with 8KB Flash sheet internal program storer from the control unit, be provided with keyboard scan unit, display driver unit, data backup unit, emergent control module, and real-time clock unit, be connected with human-computer interaction interface, real time clock circuit, output control circuit respectively from the control unit, output control circuit is connected with warning device with lock control.Be used for keyboard scan, data backup, emergent control, real-time clock.
Described real time clock circuit is ZT-C08803A;
External communication interface is at least a in RS232 interface, RS485 interface, Ethernet interface, GPRS and the WIFI interface.
Described human-computer interaction interface is the human-computer interaction interface that comprises keyboard, display.
Keyboard in the described human-computer interaction interface is 4 * 4 keyboards.
The beneficial effect that the utility model is compared with the prior art is:
The utility model adopts modular design, easy expanded function, with auxiliary management intensity and the reliability of improving, its fingerprint capturer only needs image acquisition units, optical lens, Dove prism, LED light emitting diode, and all miniaturizations of the mainboard of housing, Dove prism, image acquisition units, overcome the existing bulky defective of two finger fingerprint acquisition instruments of the same type, thereby further saved cost.The utility model can independently be finished user pair finger fingerprint collecting, two finger fingerprint comparison, the recording storage of coming in and going out, tear functions such as machine warning, unusual open alarm, control signal output open, has effectively improved fingerprint collecting speed and accuracy of identification.
Description of drawings
Fig. 1 is two structural front view that refer to fingerprint capturer of the utility model embodiment;
Fig. 2 is the motherboard circuit block scheme of the color cmos sensor of Fig. 1;
Fig. 3 is the composition block scheme of the utility model embodiment.
Embodiment
Below in conjunction with embodiment and contrast accompanying drawing method of the present utility model is described.
A kind of recognition devices shown in Fig. 1～3 with two finger fingerprint collecting functions, comprise the two finger of optics fingerprint capturer 1, control module 2, external communication interface 3, human-computer interaction interface 4, output control circuit 5, lock control and warning device 6, and real time clock circuit 7.
Optics is two to refer to that fingerprint capturer 1 comprises housing 101, is used for the led light source 8 of the finger illumination of being gathered, the Dove prism 11, imaging lens 9 and the resolution that are sequentially arranged on the systematic optical axis that is arranged in the housing 101 is the color cmos sensor 104 of 1,300,000 pixels, and data transmission Connection Block 14.Mainboard 102 circuit of color cmos sensor 104 comprise color cmos chip, storage unit chip AT24C02CN, voltage transitions chip, crystal, reset circuit and the data transmission Connection Block 14 of 1,300,000 pixels.The CMOS chip is used for the collection of display image; The storage unit chip is mainly used in the two design parameter of fingerprint capturer, the size of gathering fingerprint image, the parameters such as exposure of referring to of storage; Data transmission Connection Block 14 is used to connect the two data transmission that refer to the CPU of fingerprint capturer 1 and main control unit 12 of optics.
The large end face of Dove prism 11 promptly is the upper surface of prismatoid housing, it is both hands fingerprint finger-type acquisition platform, area is slightly larger than the fingerprint area sum of two fingers, the small end face of Dove prism is that the light of led light source 8 is injected face, led light source 8 is arranged on the small end face below, the upper side of Dove prism 11 is silk-screen faces, the downside of Dove prism 11 is to comprise to gather the light outgoing plane that both hands refer to information in fingerprint, gather comprising of penetrating light direct projection that both hands refer to information in fingerprint to imaging lens 9, the lens set in the imaging lens 9 is a spherical aberration of having eliminated material own, chromatic dispersion, the small light spot lens set of coma.
The large end face of Dove prism 11 and the angle of downside are 60 °, and the angle of large end face and upper side is 58 °, and the angle of small end face and downside is 120 °, and the angle of small end face and upper side is 122 °.
Control module 2 adopts the master-slave mode based on dual-CPU architecture, comprises main control unit 12 and connected from control unit 13.
From control unit 13 are 8 CMOS microcontroller AT89S52 with 8KB Flash sheet internal program storer, be provided with keyboard scan unit, display driver unit, data backup unit, emergent control module, and real-time clock unit, be connected with human-computer interaction interface 4, ZT-C08803A real time clock circuit 7, output control circuit 5 respectively from control unit 13, output control circuit 5 is connected with warning device 6 with lock control.Be used for keyboard scan, data backup, emergent control, real-time clock.
Optics is two to refer to that fingerprint capturer 1 is connected by the CPU of data line with main control unit 12 respectively with LCD, the CPU of main control unit 12 connects with the corresponding Plug pin patch bay of microcontroller from control unit 13 by contact pin, keyboard by data line be connected from the microcontroller of controlling unit 13.
Human-computer interaction interface 4 comprises 4 * 4 keyboards, LCD.
Optics is two refer to fingerprint capturer 1, main control unit 12 CPU, all adopt modular design from microcontroller, keyboard, the LCD of control unit 13, be easy to realize the expanded function of identification equipment.
The two of this embodiment refer to that the fingerprint collecting identifying is as follows:
1) initialization;
2) circuit self check if fault is arranged, shows the content of fault, if non-fault enters next step;
3) button is scanned at display routine master interface simultaneously, if there is button to press, according to the information and executing corresponding program of user's input, for example enters the operation of menu configuration of IP address;
4) judge whether to carry out communication? if carry out communication, entry communication program then; If do not carry out communication, enter next step;
5) judge collector have fingerprint press down by? if have fingerprint press down by, then carry out fingerprint comparison, if the verification passes, realize the target of user's operation, if checking is not passed through, then show heavily and to return the step 3) circulation and to carry out by finger.
Above content be in conjunction with concrete preferred implementation to further describing that the utility model is done, can not assert that concrete enforcement of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field; under the prerequisite that does not break away from the utility model design, make some alternative or obvious modification that are equal to; and performance or purposes are identical, all should be considered as belonging to the scope of patent protection that the utility model is determined by claims of being submitted to.
Claims (10)
1. one kind has two recognition devices that refer to the fingerprint collecting function, comprise fingerprint capturer, control module, external communication interface, human-computer interaction interface, and output control circuit, described control module respectively with fingerprint capturer, external communication interface, human-computer interaction interface, and the output control circuit connection, it is characterized in that:
Described fingerprint capturer is the two fingerprint capturers that refer to of optics, described optics is two refer to fingerprint capturer comprise housing, be used for to the finger illumination of being gathered led light source, be arranged on Dove prism, imaging lens and the image acquisition units on the systematic optical axis of being sequentially arranged in the housing, and data transmission Connection Block;
Described housing is irregular prismatoid, the upper surface of prismatoid housing is for gathering the inclined-plane of fingerprint, described Dove prism is installed in the top of prismatoid housing, optical lens and image acquisition units are installed in the prismatoid lower part of frame, and the mainboard of described image acquisition units is installed in the bottom surface of prismatoid.Described image acquisition units is arranged on the image planes of optical lens;
The large end face of described Dove prism promptly is the upper surface of prismatoid housing, it is both hands fingerprint finger-type acquisition platform, area is slightly larger than the fingerprint area sum of two fingers, the small end face of described Dove prism is that the light of described led light source is injected face, described led light source is arranged on described small end face below, the upper side of described Dove prism is the silk-screen face, and the downside of described Dove prism is to comprise to gather the light outgoing plane that both hands refer to information in fingerprint.
2. the recognition devices with two finger fingerprint collecting functions as claimed in claim 1 is characterized in that:
Described image acquisition units is a cmos sensor.
3. the recognition devices with two finger fingerprint collecting functions as claimed in claim 1 or 2 is characterized in that:
The large end face of described Dove prism and the angle of downside are 60 °, and the angle of large end face and upper side is 58 °, and the angle of small end face and downside is 120 °, and the angle of small end face and upper side is 122 °.
4. the recognition devices with two finger fingerprint collecting functions as claimed in claim 3 is characterized in that:
Described led light source is the light emitting diode of visible light, and light source density is made up of 2 luminescence units, is arranged in the inside of housing according to the value of illumination intensity, and the power supply of described led light source and ground are respectively by lead from the main board power supply of cmos sensor and altogether.
5. the recognition devices with two finger fingerprint collecting functions as claimed in claim 4 is characterized in that:
The angle of described cmos sensor and system's key light face is 9 °.
6. the recognition devices with two finger fingerprint collecting functions as claimed in claim 5 is characterized in that:
Described control module adopts the master-slave mode based on dual-CPU architecture, comprises main control unit and connected from the control unit.
7. the recognition devices with two finger fingerprint collecting functions as claimed in claim 6 is characterized in that:
Described main control unit is the CPU of 32 Embedded RISC chip cores of ARM company design, predominant frequency 500MHz, be provided with two fingerprint collecting unit, two finger fingerprint comparisons unit, data communication unit, data storage cell and output control units of referring to, main control unit is connected with fingerprint capturer, external communication interface respectively.
8. the recognition devices with two finger fingerprint collecting functions as claimed in claim 7 is characterized in that:
Described is 8 CMOS microcontroller AT89S52 with 8KB Flash sheet internal program storer from the control unit, be provided with keyboard scan unit, display driver unit, data backup unit, emergent control module, and real-time clock unit, be connected with human-computer interaction interface, real time clock circuit, output control circuit respectively from the control unit, output control circuit is connected with warning device with lock control.
9. the recognition devices with two finger fingerprint collecting functions as claimed in claim 8 is characterized in that:
External communication interface is at least a in RS232 interface, RS485 interface, Ethernet interface, GPRS and the WIFI interface.
10. the recognition devices with two finger fingerprint collecting functions as claimed in claim 9 is characterized in that:
Described human-computer interaction interface is the human-computer interaction interface that comprises keyboard, display.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202819541U CN201765597U (en) | 2010-07-28 | 2010-07-28 | Recognition device with double-finger fingerprint collection function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202819541U CN201765597U (en) | 2010-07-28 | 2010-07-28 | Recognition device with double-finger fingerprint collection function |
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| CN201765597U true CN201765597U (en) | 2011-03-16 |
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| CN2010202819541U Expired - Fee Related CN201765597U (en) | 2010-07-28 | 2010-07-28 | Recognition device with double-finger fingerprint collection function |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102368298A (en) * | 2011-11-12 | 2012-03-07 | 东莞市中控电子技术有限公司 | Double-finger, single finger and rolling fingerprints acquisition, registration and identification apparatus |
| CN107463925A (en) * | 2017-09-11 | 2017-12-12 | 信利光电股份有限公司 | A kind of fingerprint recognition module, electronic equipment |
| CN109685047A (en) * | 2019-03-01 | 2019-04-26 | 惠科股份有限公司 | Finger print input device and display device |
| CN111339805A (en) * | 2018-12-19 | 2020-06-26 | 北京小米移动软件有限公司 | Fingerprint identification device and terminal |
| US10712883B2 (en) | 2018-02-09 | 2020-07-14 | Stmicroelectronics Asia Pacific Pte Ltd | Electronic device validating multiple finger touch detection through donut shaped touch islands, and related methods |
| US10942602B1 (en) | 2019-10-30 | 2021-03-09 | Stmicroelectronics Asia Pacific Pte Ltd. | Electronic device with finger touch detection and related methods |
-
2010
- 2010-07-28 CN CN2010202819541U patent/CN201765597U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102368298A (en) * | 2011-11-12 | 2012-03-07 | 东莞市中控电子技术有限公司 | Double-finger, single finger and rolling fingerprints acquisition, registration and identification apparatus |
| WO2013067661A1 (en) * | 2011-11-12 | 2013-05-16 | 东莞市中控电子技术有限公司 | Double-finger, single-finger and rolling fingerprints acquisition, registration and identification device |
| CN107463925A (en) * | 2017-09-11 | 2017-12-12 | 信利光电股份有限公司 | A kind of fingerprint recognition module, electronic equipment |
| US10712883B2 (en) | 2018-02-09 | 2020-07-14 | Stmicroelectronics Asia Pacific Pte Ltd | Electronic device validating multiple finger touch detection through donut shaped touch islands, and related methods |
| CN111339805A (en) * | 2018-12-19 | 2020-06-26 | 北京小米移动软件有限公司 | Fingerprint identification device and terminal |
| CN109685047A (en) * | 2019-03-01 | 2019-04-26 | 惠科股份有限公司 | Finger print input device and display device |
| US10942602B1 (en) | 2019-10-30 | 2021-03-09 | Stmicroelectronics Asia Pacific Pte Ltd. | Electronic device with finger touch detection and related methods |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 26 No. 523728 Guangdong province Dongguan city Tangxia town Pingshan Industrial Avenue 188 Patentee after: Central Intelligence Polytron Technologies Inc Address before: 26 No. 523728 Guangdong province Dongguan city Tangxia town Pingshan Industrial Avenue 188 Patentee before: Dongguan ZK Electronic Technology Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110316 Termination date: 20180728 |