CN102693414A - Fingerprint identification device and method - Google Patents
Fingerprint identification device and method Download PDFInfo
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- CN102693414A CN102693414A CN2012101441093A CN201210144109A CN102693414A CN 102693414 A CN102693414 A CN 102693414A CN 2012101441093 A CN2012101441093 A CN 2012101441093A CN 201210144109 A CN201210144109 A CN 201210144109A CN 102693414 A CN102693414 A CN 102693414A
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Abstract
The invention discloses a fingerprint identification device and a method thereof. The fingerprint identification device comprises a fingerprint collector, a storage, and a controller. The fingerprint collector collects fingerprint information of a finger, converts the fingerprint information into an electric signal, and transmits the electric signal to the controller; the storage stores a previously-inputted backup of the fingerprint; the controller compares the fingerprint information with the backup of the fingerprint, takes a compared result as a second judging signal. The fingerprint identification device further comprises an electroconductive lens used for detecting an electric field of human body, wherein the electroconductive lens transmits the detected signal of the electric field of human body to the controller as a first judging signal; and the controller distinguishes whether the fingerprint is true or false according to the first judging signal and the second judging signal. According to the invention, the truth and falsity of a fingerprint can be distinguished by dual-judgment of electric potential of human body and fingerprint information by the fingerprint identification device of the invention, therefore the security of fingerprint identification is enhanced; and by adopting an android system in the operational platform of the fingerprint identification device, adaptability and flexibility of the fingerprint identification device are further improved.
Description
Technical field
The present invention relates to technical field of biological, particularly a kind of fingerprint identification device and a kind of fingerprint identification method.
Background technology
Fingerprint identification technology has benefited from the fast development of modern electronic technology, has begun to enter into our daily life, becomes most widely used technology in the present biological detection.
Fingerprint identification technology is to be mapped a people with his fingerprint, compares through the fingerprint with his fingerprint and preservation in advance, verifies his true identity.Everyone skin lines has nothing in common with each other on pattern, breakpoint and point of crossing (comprising fingerprint), that is to say, and be unique, and constant throughout one's life.
Traditional way is to go up the dress fingerprint identification device at computer (for example pacifying tall and erect panel computer), before start, carries out authentication earlier, has only fingerprint typing people just can have the right to limit and opens computer; But this can not prevent false fingerprint, the false fingerprint of for example making with the silica gel material verification system of out-tricking usually.
Summary of the invention
The technical matters that the present invention will solve is how the fingerprint recognition device accurately discerns false fingerprint.
To achieve these goals; The invention provides a kind of fingerprint identification device, comprise fingerprint capturer, storer and controller, the finger print information of said fingerprint capturer collection finger; Convert finger print information to electric signal and be sent to controller; Stored the fingerprint backup of typing in advance in the said storer, controller is compared finger print information and fingerprint backup, and comparison result is judged signal as second; Said fingerprint identification device also comprises the conduction lens; Be used for the human body electric field, the conduction lens are sent to controller with people's bulk electric field detection signal and judge signal as first, and said controller is judged the true and false of the signal and the second judgement signal distinguishing fingerprint according to first.
Alternatively, said fingerprint capturer comprises the optics camera, and fingerprint is gathered, and the output finger print information is to controller.
Alternatively, said optics camera is the CCD camera.
Alternatively, the operating platform of said controller is the An Zhuo system.
Alternatively, said fingerprint identification device also comprises communication interface, and said communication interface is couple to controller, is used for controller and external unit and carries out communication.
Alternatively, said controller comprises signal conversion module, converts the finger print information that receives and people's bulk electric field detection signal into usb signal.
The present invention also provides a kind of fingerprint identification method, may further comprise the steps: detect finger through the conduction lens and whether have people's bulk electric field, and people's bulk electric field detection signal is judged signal as first; Through the finger print information of optics camera collection finger, compare with the fingerprint backup of storage in advance, comparison result is judged signal as second; If first judges that the signal and the second judgement signal are very, judge that then fingerprint is true, if first judges that it is false that the signal and the second judgement signal have at least one, judges that then fingerprint is vacation.
The invention has the beneficial effects as follows:
(1) distinguishes the true and false of fingerprint through the dual judgement of people's bulk potential and finger print information, improved the security of fingerprint recognition;
(2) operating platform of fingerprint identification device adopts An Zhuo system, the applicability and the dirigibility that have further improved fingerprint identification device.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills; Under the prerequisite of not paying creative work property, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the circuit block diagram of fingerprint identification device of the present invention;
Fig. 2 is the process flow diagram of fingerprint identification method of the present invention.
Embodiment
To combine the accompanying drawing in the embodiment of the invention below, the technical scheme in the embodiment of the invention is carried out clear, intactly description, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the present invention's protection.
Shown in Figure 1 is the circuit block diagram of fingerprint identification device of the present invention.
As shown in Figure 1; Fingerprint identification device of the present invention comprises fingerprint capturer 101, controller 102 and storer 104; Fingerprint capturer 101 is used to gather the finger print information of finger, and finger print information is transferred to controller 102 with the form of electric signal, has stored the fingerprint backup of typing in advance in the storer 104; Controller 102 is compared finger print information and fingerprint backup, and comparison result is judged signal as second.If finger print information is consistent with the fingerprint backup in the storer 104, then second judges that signal is true; If finger print information is not backup in storer 104, then second judges that signal is false.
Fingerprint identification device also comprises conduction lens 103, and conduction lens 103 are arranged on the upper surface of the fingerprint collecting port minute surface of fingerprint capturer 101, and are overlapping with the port minute surface.When finger reaches the fingerprint collecting port when carrying out the fingerprint typing, at first touch conduction lens 103, because there is electric field in human body, conduction lens 103 just can detect.When sensing people's bulk electric field, conduction lens 103 are sent to controller 102 with people's bulk electric field detection signal, judge signal as first.For example, conduction lens 103 can be capacitance touch screens, and capacitance touch screen is merely schematically as the application of conduction lens, and those skilled in the art can select for use any suitable conduction lens to carry out people's bulk potential and detect.
Fingerprint capturer 101 of the present invention comprises optics camera (not shown in figure 1), is used to gather the finger print information of finger, for example can be CCD (charge-coupled image sensor) camera.
The controller 102 of fingerprint identification device of the present invention can adopt the An Zhuo system as operating platform, and is compatible to realize with electronic equipments such as the panel computer that adopts the An Zhuo system, mobile phones, realizes the interactive communicate between fingerprint identification device and the electronic equipment.
Fingerprint identification device of the present invention also comprises communication interface, and communication interface is couple to controller 102, and controller 102 is through realizing the exchange of information between communications protocol and the external unit.
Controller of the present invention comprises the signaling conversion circuit (not shown in figure 1), is couple to fingerprint capturer 101 and conduction lens 103, converts finger print information and people's bulk potential detection signal into usb signal.
Shown in Figure 2 is the process flow diagram of fingerprint identification method of the present invention.
As shown in Figure 2, fingerprint identification method of the present invention may further comprise the steps: step S210, detect finger through the conduction lens and whether have people's bulk electric field, and people's bulk electric field detection signal is judged signal as first; Step S220 through the finger print information of optics camera collection finger, compares with the fingerprint backup of storage in advance, and comparison result is judged signal as second; Step S230 if the first judgement signal and second judges that signal is very, judges that then fingerprint is true; Step S240 is if the first judgement signal and second judges that it is false that signal has at least one, judges that then fingerprint is false.
When finger touch conduction lens, because there is electric field in human body, the conduction lens just can detect people's bulk electric field, and people's bulk electric field detection signal is judged signal as first.
Through the finger print information of optics camera collection finger, compare with the fingerprint backup of storage in advance, the result of comparison judges signal as second.If finger print information is consistent with the fingerprint backup, then finger print information is true; If finger print information and fingerprint backup are inconsistent, then finger print information is false.
Had people's bulk electric field on the finger if both detected, and finger print information also is true, promptly first judges that signal and second judges that signal is very, judges that then fingerprint is true; Do not exist people's bulk electric field and/or finger print information for false if detect finger, promptly first judges that at least one is false in the signal and the second judgement signal, judges that then fingerprint is false.
Fingerprint identification method of the present invention shown in Figure 2 is merely schematically the label of each step, and should not be construed as the restriction to the method step sequencing, and for example step S210 and step S220 can carry out simultaneously, also can successively carry out.
The above is merely preferred embodiment of the present invention, and is in order to restriction the present invention, not all within spirit of the present invention and principle, any modification of being done, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (7)
1. a fingerprint identification device comprises fingerprint capturer, storer and controller, the finger print information of said fingerprint capturer collection finger; Convert finger print information to electric signal and be sent to controller, stored the fingerprint backup of typing in advance in the said storer, controller is compared finger print information and fingerprint backup; Comparison result is judged signal as second; It is characterized in that said fingerprint identification device also comprises the conduction lens, be used for the human body electric field; The conduction lens are sent to controller with people's bulk electric field detection signal and judge signal as first, and said controller is judged the true and false of the signal and the second judgement signal distinguishing fingerprint according to first.
2. fingerprint identification device as claimed in claim 1 is characterized in that said fingerprint capturer comprises the optics camera, and fingerprint is gathered, and the output finger print information is to controller.
3. fingerprint identification device as claimed in claim 2 is characterized in that, said optics camera is the CCD camera.
4. fingerprint identification device as claimed in claim 1 is characterized in that, the operating platform of said controller is the An Zhuo system.
5. like each described fingerprint identification device of claim 1 to 4, it is characterized in that said fingerprint identification device also comprises communication interface, said communication interface is couple to controller, is used for controller and external unit and carries out communication.
6. fingerprint identification device as claimed in claim 1 is characterized in that said controller comprises signal conversion module, converts the finger print information that receives and people's bulk electric field detection signal into usb signal.
7. a fingerprint identification method is characterized in that, may further comprise the steps:
Detect finger through the conduction lens and whether have people's bulk electric field, and people's bulk electric field detection signal is judged signal as first;
Through the finger print information of optics camera collection finger, compare with the fingerprint backup of storage in advance, comparison result is judged signal as second;
If first judges that the signal and the second judgement signal are very, judge that then fingerprint is true, if first judges that it is false that the signal and the second judgement signal have at least one, judges that then fingerprint is vacation.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012101441093A CN102693414A (en) | 2012-05-10 | 2012-05-10 | Fingerprint identification device and method |
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| CN2012101441093A CN102693414A (en) | 2012-05-10 | 2012-05-10 | Fingerprint identification device and method |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103761464A (en) * | 2014-01-26 | 2014-04-30 | 金硕澳门离岸商业服务有限公司 | Touch device and touch control method |
| CN105635361A (en) * | 2015-12-31 | 2016-06-01 | 宇龙计算机通信科技(深圳)有限公司 | Mobile terminal and shooting method and apparatus |
| CN105930704A (en) * | 2016-04-01 | 2016-09-07 | 乐视控股（北京）有限公司 | Fingerprint identification method and apparatus, and intelligent terminal |
| CN106778663A (en) * | 2016-12-29 | 2017-05-31 | 苏州塞罗尔医学影像科技有限公司 | A kind of fingerprint recognition system |
| CN107657208A (en) * | 2016-07-25 | 2018-02-02 | 速博思股份有限公司 | fingerprint identification device |
| CN111095286A (en) * | 2019-11-01 | 2020-05-01 | 深圳市汇顶科技股份有限公司 | Fingerprint detection device and electronic equipment |
| CN111133446A (en) * | 2018-12-13 | 2020-05-08 | 深圳市汇顶科技股份有限公司 | Fingerprint identification device and electronic equipment |
| WO2020119330A1 (en) * | 2018-12-13 | 2020-06-18 | 深圳市汇顶科技股份有限公司 | Fingerprint recognition apparatus and electronic device |
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103761464A (en) * | 2014-01-26 | 2014-04-30 | 金硕澳门离岸商业服务有限公司 | Touch device and touch control method |
| CN105635361A (en) * | 2015-12-31 | 2016-06-01 | 宇龙计算机通信科技(深圳)有限公司 | Mobile terminal and shooting method and apparatus |
| CN105930704A (en) * | 2016-04-01 | 2016-09-07 | 乐视控股（北京）有限公司 | Fingerprint identification method and apparatus, and intelligent terminal |
| CN107657208A (en) * | 2016-07-25 | 2018-02-02 | 速博思股份有限公司 | fingerprint identification device |
| CN107657208B (en) * | 2016-07-25 | 2020-10-23 | 速博思股份有限公司 | Fingerprint identification device |
| CN106778663A (en) * | 2016-12-29 | 2017-05-31 | 苏州塞罗尔医学影像科技有限公司 | A kind of fingerprint recognition system |
| CN106778663B (en) * | 2016-12-29 | 2023-07-07 | 苏州塞罗尔医学影像科技有限公司 | Fingerprint identification system |
| CN111566659A (en) * | 2018-12-13 | 2020-08-21 | 深圳市汇顶科技股份有限公司 | Fingerprint identification device and method and electronic equipment |
| WO2020119330A1 (en) * | 2018-12-13 | 2020-06-18 | 深圳市汇顶科技股份有限公司 | Fingerprint recognition apparatus and electronic device |
| CN111133446A (en) * | 2018-12-13 | 2020-05-08 | 深圳市汇顶科技股份有限公司 | Fingerprint identification device and electronic equipment |
| US11048910B2 (en) | 2018-12-13 | 2021-06-29 | Shenzhen GOODIX Technology Co., Ltd. | Fingerprint identification device, method and electronic device |
| CN111566659B (en) * | 2018-12-13 | 2021-08-13 | 深圳市汇顶科技股份有限公司 | Fingerprint identification device and method and electronic equipment |
| US11423690B2 (en) | 2018-12-13 | 2022-08-23 | Shenzhen GOODIX Technology Co., Ltd. | Fingerprint identification apparatus and electronic device |
| US11475706B2 (en) | 2018-12-13 | 2022-10-18 | Shenzhen GOODIX Technology Co., Ltd. | Fingerprint identification device, method and electronic device |
| CN111095286B (en) * | 2019-11-01 | 2021-06-11 | 深圳市汇顶科技股份有限公司 | Fingerprint detection device and electronic equipment |
| CN111095286A (en) * | 2019-11-01 | 2020-05-01 | 深圳市汇顶科技股份有限公司 | Fingerprint detection device and electronic equipment |
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Owner name: AIWEIDA INTELLIGENT ELECTRONIC TECHNOLOGY (KUNSHAN Free format text: FORMER OWNER: SHANGHAI SHANGHAI AVW BIO-TECHNOLOGY CO., LTD. Effective date: 20140320 |
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Effective date of registration: 20140320 Address after: 215311 Suzhou City, Kunshan province Ba Town, Xueyuan Road, No. 1, building 88, Applicant after: Aiweida Intelligent Electronic Technology (Kunshan) Co., Ltd. Address before: Zhao Xiang Town Qingpu District Shanghai city 201703 Real Road No. 91, room 5039 Applicant before: AVW Biometric Technology Co.,Ltd. |
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Application publication date: 20120926 |