CN101483524A - Distributed finger print recognition system for network and implementing method thereof - Google Patents
Distributed finger print recognition system for network and implementing method thereof Download PDFInfo
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Abstract
The present invention discloses a network distribution type fingerprint identification system and a realizing method thereof. The network distribution type fingerprint identification system comprises a central server and at least one fingerprint identifier terminal which are connected through network. The network transmission based on TCP/IP protocol is used as a communication platform. The central server is a computer which is installed with fingerprint obtaining and identifying software and is provided with a database system. Furthermore the central server is connected with a fingerprint collector which is same to the fingerprint identifier terminal through data interface. The fingerprint can be respectively registered on the central server and the fingerprint identifier terminal, and can be transmitted to the corresponding terminal through cable network or wireless network. The remote fingerprint characteristic identification mode or local fingerprint characteristic identification mode is automatically switched according to the self-testing state of network in using. The invention provides the flexibility for registering user, storing and using the fingerprint formwork, and gives attention to the adaptivity in the conditions of cluster application and fault condition of network. Furthermore all data transmissions are processed through enciphering. The security of fingerprint identification technique based on the network communication is further increased.
Description
Technical field
The present invention relates to a kind of fingerprint recognition system and its implementation, relate in particular to distributed finger print recognition system for network and its implementation of a kind of connection Network Based and fingerprint recognition chip, algorithm application.
Background technology
In the life of reality, work, the person identification technology that is used for the account management etc. of hotel, building gate inhibition, bank securities more and more is subjected to people's attention, and this degree of concern is along with day by day improving of people's culture, living standard also proposes new requirement constantly.Tangible key, IC-card or the invisible password etc. that were used for user's personal authentication all show the one side of its deficiency in the past at long-term application process convexity.For example: easily the being replicated property of key, account password are difficult to memory and are easy to lose and forget, even, still can there be the problem that IC-card is lost and password leaks that causes because of carelessness in conjunction with invisible password in IC-card.So, seek the technology that a kind of biological characteristic inherent, that vary with each individual is assert as personal identification, be a current and even following practicable developing direction.
The biological identification technology is that an emerging human body biological characteristics that utilizes is determined the technology of personal identification, can be widely used in fields such as criminal investigation, safety, bank and different human body and sit in the right seat.Sockdolager's body biological characteristic is fingerprint and DNA in existing the application, wherein especially with fingerprint because of it is easy to subjective gather and objective physics relatively waits characteristics, become the earliest and the human body biological characteristics of normal use.Therefore, fingerprint identification technology occupies an important position in the biological identification field, has vast potential for future development.
Present fingerprint recognition system mostly is applied in local state, no matter is gate control system, or the personal computer account management system, all has extensively and ripe application.But this technological layer also is not suitable for the application of marquee account group system.Tracing it to its cause, mainly is that some networked devices exist potential safety hazard because the information of Network Transmission lacks effective encryption and decryption means, causes very big inconvenience to the user; And be subjected to employed fingerprint recognition chip and algorithm limits, its system can not use need not extra memory or the monolithic ARMCPU of flash memory realize, so the structure price of this type systematic is very expensive usually.
Summary of the invention
In view of this, the object of the present invention is to provide distributed finger print recognition system for network and its implementation of a kind of connection Network Based, further expand the application mode of fingerprint identification technology, solve the exploitativeness and the adaptivity of fingerprint recognition network application.
Purpose of the present invention, will be by realizing with the lower device technical scheme:
Distributed finger print recognition system for network is characterized in that: described fingerprint recognition system comprises central server and at least one fingerprint identifier terminal that connects by network, with based on the Network Transmission of ICP/IP protocol as communications platform; Wherein said central server be mounted with that fingerprint obtains, identification software and computer with Database Systems, and be connected with the fingerprint acquisition instrument that is same as fingerprint identifier terminal by data-interface.
Further, arbitrary described fingerprint identifier terminal is an individual devices, comprise that a single-chip microcomputer processing unit, touches automatic upper electrical switch, and by PCB circuit and single-chip microcomputer processing unit weldering peripheral circuits such as fingerprint acquisition instrument, Ethernet interface, control output end mouth and watchdog unit even, wherein said single-chip microcomputer processing unit and fingerprint acquisition instrument are connected on the automatic upper electrical switch of same touch, to obtain the work required voltage.
Further, described fingerprint identifier terminal also comprises reserve battery, USB interface, at least one LED light, and the input keyboard and the LCD display of selectivity connection.
Further, described single-chip microcomputer processing unit is that LPC2XXX, LM3S6965 or other are the one-chip CPU of core with ARM7.
Further, it is the device of core that described fingerprint acquisition instrument refers to based on scratching formula fingerprint chip ATW31X, or has the similar device of fingerprint collecting function.
Further, the data-interface that links to each other with fingerprint acquisition instrument of described central server is that USB interface, serial ports, parallel port or other computers can be discerned compatible interface shape.
With above-mentioned distributed finger print recognition system for network is support, and the implementation method of the object of the invention is:
I, user registered fingerprint template on the fingerprint acquisition instrument of fingerprint identifier terminal or central server, the Database Systems of central server divide the cover storage all fingerprint templates, and store exclusive fingerprint template by Network Transmission to the counterpart terminal Fingerprint Identification Unit;
II, corresponding exclusive separately fingerprint identifier terminal, user's finger are touched fingerprint acquisition instrument and are powered on and write down fingerprint characteristic value, the network condition of self check simultaneously;
Under III, the network normal condition, fingerprint identifier terminal is encrypted the fingerprint characteristic value of record (data are smashed), is sent to central server, by central server to the encryption fingerprint characteristic value deciphering (fragment reorganization) returned and with step I in the corresponding fingerprint template stored of registration compare; And when network under the unusual or central server failure condition, by the fingerprint characteristic value of this machine of fingerprint identifier terminal program comparison record and the fingerprint template of exclusive storage;
IV, according to comparison result, make outage, report an error, unblank or send the control output of correct signal by fingerprint identifier terminal.
Further, the fingerprint template of user described in step I registration is by at least three scratching fingerprint acquisition instruments of the same finger of user, and the collection result that writes down each time is integrated into one and overlaps and store.
Further, comparison process described in the Step II I is meant fingerprint characteristic value is compared one by one with corresponding a whole set of fingerprint template.First piece of fingerprint template comparison when real-time fingerprint characteristic value that is about to collect and registration then finishes to compare as success; Otherwise just compare again with second or the 3rd piece of fingerprint template in turn.
Distributed finger print recognition system for network of the present invention and its implementation, its beneficial effect is:
The flexibility that this distributed finger print recognition system for network provides the user to register, store fingerprint template and identification, comparison individual fingerprint characteristic from the central server to the fingerprint identifier terminal has taken into account the based on network cluster application of central server and the adaptivity of this machine of terminal recognition mode when network or central server fault.In addition, in network transmission process,, improved the based on network communications security of fingerprint template data by encryption, the decipherment algorithm of in house software itself.
Description of drawings
Fig. 1 is the network topology structure figure of fingerprint recognition system of the present invention;
Fig. 2 is the applicating flow chart of fingerprint recognition system registered fingerprint of the present invention and fingerprint recognition;
Fig. 3 is the modular structure schematic diagram of fingerprint identifier terminal preferred embodiment of the present invention;
Fig. 4 is the modular structure schematic diagram of another embodiment of fingerprint identifier terminal of the present invention;
Fig. 5 is the modular structure schematic diagram of the another embodiment of fingerprint identifier terminal of the present invention.
Embodiment
For architectural feature, implementation method and the beneficial effect that makes distributed finger print recognition system for network of the present invention is easier to understand, carry out detailed and nonrestrictive description below in conjunction with some embodiment and accompanying drawing thereof.
The present invention is the application mode that further expands fingerprint identification technology, solve the exploitativeness and the adaptivity of fingerprint recognition network application, fingerprint control and recognition technology are combined with server by network, make it to become a network distribution type multi-purpose intelligent chemical control system system.Not only this fingerprint recognition system can be under network environment be used by coded communication, and each terminal equipment is implemented control, can also automatically switch to the terminal local mode when network or central server break down, and implements control separately.
As shown in Figure 1, be the topology diagram of distributed finger print recognition system for network of the present invention.By shown in the figure as seen: this fingerprint recognition system is by a central server 1 and many station terminals Fingerprint Identification Unit (41,42,43,44 ... 4N-1,4N) connect and compose by network 3.Wherein this central server 1 is one and is mounted with that fingerprint obtains, identification software, and has the common computer of Database Systems, and is connected with the fingerprint acquisition instrument 2 that is same as fingerprint identifier terminal by USB interface.And network 3 is based on the TCP/IP host-host protocol, can be applied to different physical layer networks (Ethernet, wireless network etc.).
Embodiment one
As the core of fingerprint recognition of the present invention, each fingerprint identifier terminal is separate device, with the status access network 3 of equality.Fingerprint identifier terminal preferred embodiment construction module schematic diagram as shown in Figure 3 as seen, its structure comprises a single-chip microcomputer processing unit 21, one touches automatic upper electrical switch 27, and by PCB circuit and single-chip microcomputer processing unit 21 welderings fingerprint acquisition instrument 22 even, Ethernet interface 24, control output end mouth 23, watchdog unit 28 and LED light 261,262 peripheral circuits such as grade, wherein said single-chip microcomputer processing unit 21 is connected on the automatic upper electrical switch 27 of same touch with fingerprint acquisition instrument 22, power on to terminal system by the finger touch form, obtain the work required voltage.So fingerprint identifier terminal not power consumption at ordinary times, only ability consume electric power when normal the use.Wherein single-chip microcomputer processing unit 21 is acp chips of this terminal, is mounted with the software that fingerprint obtains, discerns and carries out routine processes, identification control output, and have the flash cell that is used to store fingerprint template and fingerprint characteristic value.It is to be the one-chip CPU of core with ARM7, and its model can be selected LPC2XXX, LM3S6965 or other similar high performance-price ratio single-chip microcomputers for use.And fingerprint acquisition instrument 22 also is a stable performance, a superiority fingerprint collecting chip preferably, and what select for use in this example is the fingerprint extracting device of being made by the ATW31X chip that ATRUA company produces.This single-chip microcomputer processing unit 21 and fingerprint acquisition instrument 22 are connected on the automatic upper electrical switch 27 of same touch, touch by user's finger and obtain the required power supply of two chip operations.
As the attached device of single-chip microcomputer processing unit 21 also each tool specific function, particularly: this output control terminal mouth 23 is used for the output with the fingerprint recognition result, reaches outage, reports an error, unblanks or sends control such as correct signal and export; This Ethernet interface 24 is used for this fingerprint identifier terminal access network, sends and receive the data-signal from network central server; This LED light can be a plurality of (being illustrated as two 261,262 among the embodiment), mainly plays the state indicative function of this terminal works; And filtering, current limliting, the pressure limiting circuit of this watchdog unit 28 for constituting by electronic devices such as resistance, electric capacity or inductance.
Embodiment two
As shown in Figure 4, be the modular structure schematic diagram of another embodiment of fingerprint identifier terminal of the present invention.By Fig. 4 comparison diagram 3 as seen, the main devices and the connected mode of this fingerprint identifier terminal are roughly the same, difference only is to have connected a keyboard input unit 291 by circuit on single-chip microcomputer processing unit 21, can carry out the simple numerical input to satisfy this distributed finger print recognition system for network user under application circumstances.
Embodiment three
As shown in Figure 5, be the modular structure schematic diagram of the another embodiment of fingerprint identifier terminal of the present invention.By Fig. 5 comparison diagram 4 as seen, the main devices of this fingerprint identifier terminal and connected mode are also roughly the same, difference only is to have connected a LCD display 292 again by circuit on single-chip microcomputer processing unit 21, to satisfy the demand of user to this distributed finger print recognition system for network man-machine interface.In addition,, can make this fingerprint identifier terminal under the situation of needs, conveniently directly link to each other, switch to network application from independent use with computer by the USB interface 25 of drawing from single-chip microcomputer processing unit 21.
The keyboard input unit 291 of fingerprint identifier terminal and LCD display 292 are member optionally among the foregoing description two and the embodiment three, are not the version that limits this fingerprint recognition system with this.According to the different requirements of using, this single-chip microcomputer processing unit also can connect other simple adjunct units.
The distributed finger print recognition system for network that constitutes by the fingerprint identifier terminal and the central server access network based on ethernet of above three embodiment introductions.Its practical work process flow chart as shown in Figure 2 is as seen:
The registration phase of fingerprint template:
Remote login two kinds of registration approach that this distributed finger print recognition system for network provides central server directly to transmit by network encryption after registration and the collection of terminal wood machine.Directly register for central server, by the fingerprint acquisition instrument that links to each other with this central server USB interface, touch the collection fingerprint characteristic value by the direct finger of user, and by the fingerprint that central server loads obtain, identification software divides the cover registration to be stored in the Database Systems of central server fingerprint template, again according to default program with the fingerprint template of registration by net distribution on the terminal of correspondence.For this machine of terminal remote login, fingerprint identifier terminal is gathered fingerprint characteristic value, except that the exclusive fingerprint template of this locality storage, also the network encryption communications that can pass through ICP/IP protocol is finished the fingerprint template registration of server end Database Systems to central server.
Wherein the cover registration of the branch of fingerprint template is by at least three scratching fingerprint acquisition instruments of the same finger of user, and the collection result that writes down each time is integrated into one and overlaps and store.The purpose of doing like this is to refuse sincerely for what reduce whole fingerprint recognition system when the fingerprint comparison, avoids only registering under the situation of one piece of fingerprint template, and system repeatedly can't discern the user fingerprints characteristic value and refuse to respond or the awkward situation that reports an error takes place.
The comparison stage of fingerprint characteristic value:
At first, the user touches fingerprint acquisition instrument by finger on fingerprint identifier terminal, at first activate and touch automatic upper electrical switch, with the working power Fingerprint Identification Unit that accesses terminal, point scratching terminal part record fingerprint characteristic value by the user then, and self-starting network state detection program.
Then, according to the result of network self check, fingerprint identifier terminal is judged the mode of fingerprint comparison automatically.Under the network normal condition, this fingerprint recognition system is high priority with the network application, fingerprint identifier terminal is smashed the fingerprint characteristic value that collects, and send to central server by network with this cipher mode, again by central server by internal processes to the deciphering of recombinating of this fingerprint characteristic value fragment, then at server end fingerprint template of registered corresponding each cover in this fingerprint characteristic value and the database is compared one by one, specific practice is: first piece of fingerprint template comparison of the cover fingerprint during with real-time fingerprint characteristic value and registration, as then end comparison of success; Otherwise just compare again with second or the 3rd piece of fingerprint template of this cover fingerprint in turn.At last comparison result is fed back to the terminal of correspondence by the mode of network encryption and decryption communication.The situation of or central server fault unusual for network, fingerprint identifier terminal are directly called the fingerprint recognition program of wooden machine single-chip microcomputer processing unit and the fingerprint template that prestores is compared, and comparison method is identical with network schemer.
At last, according to comparison result, make outage, report an error, unblank or send the control output of correct signal by fingerprint identifier terminal, realize that the networking control of fingerprint recognition system is used.When a certain user no longer needs to use this fingerprint recognition system, can nullify this cover fingerprint template by software respectively at central server and terminal.
The description of the structure and the course of work by above a plurality of embodiment, the beneficial effect of distributed finger print recognition system for network of the present invention and its implementation is apparent: (1) provides fingerprint template registration, storage mode and the comparison of user from central server to the fingerprint identifier terminal diversification, the flexible selection of identification fingerprint characteristic.(2) for the chance failure of network or central server, this system provides the adaptability that network schemer and local mode automatically switch to select, and has further ensured the stability of this system's operation.(3) by based on the network of TCP/IP host-host protocol and add, the decrypt communication technology carries out the transmission of fingerprint template data, also further improved the fail safe of fingerprint recognition control.(4) by the powering on of user's touch terminal, operating mode that timing automatic is treated tester in power-down state, effectively save energy resource consumption, prolonged the useful life of terminal system under the specific energy consumption.(5) based on the host-host protocol of TCP/IP, can be applied to different physical layer networks, be convenient to the user and utilize conventional network resources to realize simple architecture.
In sum, the architectural feature, implementation process and the beneficial effect that have represented the present invention's design comprehensively.But be not the diversity that limits embodiment of the present invention with this.Therefore, carry out simple modification or the formed technical scheme of equivalence replacement for above embodiment in every case, can realize the scheme that fingerprint identification technology networking multipurpose is used, all should be considered as in the scope of the present patent application protection.
Claims (9)
1. distributed finger print recognition system for network is characterized in that: described fingerprint recognition system comprises central server and at least one fingerprint identifier terminal that connects by network, with based on the Network Transmission of ICP/IP protocol as communications platform; Wherein said central server be mounted with that fingerprint obtains, identification software and computer with Database Systems, and be connected with the fingerprint acquisition instrument that is same as fingerprint identifier terminal by data-interface.
2. distributed finger print recognition system for network according to claim 1, it is characterized in that: arbitrary described fingerprint identifier terminal is an individual devices, comprise that a single-chip microcomputer processing unit, touches automatic upper electrical switch, and by PCB circuit and single-chip microcomputer processing unit weldering peripheral circuits such as fingerprint acquisition instrument, Ethernet interface, control output end mouth and watchdog unit even, wherein said single-chip microcomputer processing unit and fingerprint acquisition instrument are connected on the automatic upper electrical switch of same touch, to obtain the work required voltage.
3. distributed finger print recognition system for network according to claim 2 is characterized in that: described fingerprint identifier terminal also comprises reserve battery, USB interface, at least one LED light, and the input keyboard and the LCD display of selectivity connection.
4. distributed finger print recognition system for network according to claim 2 is characterized in that: described single-chip microcomputer processing unit is that LPC2XXX, LM3S6965 or other are the one-chip CPU of core with ARM7.
5. distributed finger print recognition system for network according to claim 2 is characterized in that: it is the device of core that described fingerprint acquisition instrument refers to based on scratching formula fingerprint chip ATW31X, or has the similar device of fingerprint collecting function.
6. distributed finger print recognition system for network according to claim 1 is characterized in that: the data-interface that described central server links to each other with fingerprint acquisition instrument is that USB interface, serial ports, parallel port or other computers can be discerned compatible interface shape.
7. the implementation method of distributed finger print recognition system for network is characterized in that: described fingerprint recognition system comprises central server and at least one fingerprint identifier terminal that connects by network, the steps include:
I, user registered fingerprint template on the fingerprint acquisition instrument of fingerprint identifier terminal or central server, the Database Systems of central server divide the cover storage all fingerprint templates, and store exclusive fingerprint template by Network Transmission to the counterpart terminal Fingerprint Identification Unit;
II, corresponding exclusive separately fingerprint identifier terminal, user's finger are touched fingerprint acquisition instrument and are powered on and write down fingerprint characteristic value, the network condition of self check simultaneously;
Under III, the network normal condition, central server is encrypted, sent to fingerprint identifier terminal with the fingerprint characteristic value of record, by central server to the encryption fingerprint characteristic value deciphering returned and with step I in the corresponding fingerprint template of registration storage compare; And when network under the unusual or central server failure condition, by the fingerprint characteristic value of this machine of fingerprint identifier terminal program comparison record and the fingerprint template of exclusive storage;
IV, according to comparison result, make outage, report an error, unblank or send the control output of correct signal by fingerprint identifier terminal.
8. the implementation method of distributed finger print recognition system for network according to claim 7, it is characterized in that: the registration of the fingerprint template of user described in the step I is by at least three scratching fingerprint acquisition instruments of the same finger of user, and the collection result that writes down each time is integrated into one and overlaps and store.
9. the implementation method of distributed finger print recognition system for network according to claim 7, it is characterized in that: comparison process described in the Step II I is meant to be compared fingerprint characteristic value one by one with corresponding a whole set of fingerprint template.
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| CN107872546A (en) * | 2017-09-29 | 2018-04-03 | 湖北天禾立方智能科技发展有限公司 | On network, communications and data Transmission system |
| CN109558789A (en) * | 2018-10-09 | 2019-04-02 | 珠海亿联德源信息技术有限公司 | A kind of biological characteristic system for rapidly identifying based on distributed computing |
| CN109544943A (en) * | 2019-01-08 | 2019-03-29 | 连云港杰瑞电子有限公司 | A kind of traffic signals terminal control mechanism and method based on speech recognition technology |
| CN110199295A (en) * | 2019-04-04 | 2019-09-03 | 深圳市汇顶科技股份有限公司 | The method, apparatus and electronic equipment of fingerprint recognition |
| CN110415531A (en) * | 2019-08-05 | 2019-11-05 | 连云港杰瑞电子有限公司 | A kind of road traffic signal manually controls security control apparatus and method |
| CN111259359A (en) * | 2020-01-21 | 2020-06-09 | 恒大智慧科技有限公司 | Community-based fingerprint management method and system, community server and storage medium |
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