CN208861292U - A kind of resident identification card fingerprint capturer - Google Patents

Abstract

The utility model discloses a kind of resident identification card fingerprint capturers, including finger print acquisition module, ESD protective module, main control module, clock processing module, reset function module, external interface module and power management module, the input terminal of the output end electrical connection central processing unit of the finger print acquisition module, the two-way electrical connection finger print acquisition module of ESD protective module, the two-way electrical connection main control module of clock processing module, the input terminal of the output end electrical connection main control module of the reset function module, the two-way electrical connection main control module of external interface module, the input terminal of the output end electrical connection main control module of the power management module.The utility model carries out living body acquisition for somatic fingerprint, has fingerprint typing, antistatic protection, image procossing, fingerprint comparison and template store function, it is more adaptable to have wet finger; environment resistant interference is stronger, and image resolution ratio is high, undistorted; picture quality is good, highly-safe advantage.

Description

A kind of resident identification card fingerprint capturer

Technical field

The utility model belongs to smart machine field more particularly to a kind of resident identification card fingerprint capturer.

Background technique

With the fast development of science and technology, safety is more and more important, along with the continuous growth of security requirement, identity information Capturing and recognition device has obtained extensive development and application.And identity information acquisition identification device has become social now The important component of management activity, all such as military base, privacy mechanism and bank, customs, cell management, factory and parking lot It will use identity information acquisition identification device.Modern society has increasing need for the identification system of high efficient and reliable.Traditional Personal identification identifies the identification cards modes such as means such as password, password, identity-even magnetic card, IC card.Since it is with identity people's Separability, can palm off, can forge, can usurp, can decode, and cannot fully meet modern social economy activity and social safety The needs of prevention.From eliminating in terms of artificial insecurity factor, only it is not easy also be turned by other people replacements, imitated, even he or she The other voucher of the identity error code allowed could be competent at.Therefore, the identification system based on human body physiological characteristics is gradually looked steadily by society Mesh.With the continuous maturation of identification technology, with the rapid development of computer technology, various identity based on human body physiological characteristics Identifying system is such as: fingerprint, palm, sound, retina, pupil, face line identification technology are come out of from laboratory one after another, by small Type machine settles microcomputer, moves towards civilian.And it is comprehensively compared from ease for use, safety, maturity and cost etc., fingerprint recognition skill Art will become one of the mainstream of the following human body physiological characteristics identity recognizing technology, and fingerprint automation recognition technology has started personal identification The new era of identification, many occasions that we live in the future will use fingerprint, and fingerprint keeps our life more convenient, safe. The fingerprint of people has uniqueness, unchangeable property, easily obtains and be difficult to the features such as replicating, so that fingerprint recognition becomes body very early One of part identification technological means.With the development of science and technology, fingerprint recognition have become it is presently the most practical, using most For extensive biological identification technology, fingerprint identification technology has been obtained extensively in fields such as finance, medical treatment, public security, access control systems General application.

The development of fingerprint identification technology has benefited from the research of hyundai electronics Integrated-manufacturing Techniques and fast and reliable algorithm.To the greatest extent Pipe fingerprint is the fraction of human skin, but data volume for identification is quite big, these data, which are compared, to be also not Simple equal and unequal problem, but use the fuzzy matching algorithm for needing to carry out a large amount of operations.Hyundai electronics are integrated Manufacturing technology allows us to manufacture fairly small fingerprint image reading equipment, while the personal computer operation developed rapidly Speed provides the possibility that the comparison calculation of two fingerprints can be carried out on microcomputer even single-chip microcontroller.In addition, matching algorithm can It is also continuously improved by property, oneself is very useful for fingerprint identification technology.Fingerprint identification technology is earliest by computer implemented body Part means of identification, it is the biometrics identification technology being most widely used.In the past, it is mainly used in criminal investigation system.It is close several Nian Lai, it gradually moves towards the more extensive commercial market in market.Application of the fingerprint technique in the modern life and work is more next It is more universal, fingerprint attendance machine, fingerprint social security, fingerprint bank, fingerprint market, fingerprint ballot, fingerprint protection computer, etc. life in It is well known with the new phenomenon in work, application is quite extensive, and fingerprint technique is increasingly refreshing our modernization Life style.Fingerprint identification technology be at present it is internationally recognized be widely used, be cheap, the biological identification skill that ease for use is high Art.Fingerprint is the fraction of human skin, but it has but contained a large amount of information.The lines of these skins is in pattern, disconnected Point and crosspoint on be it is different, they are referred to as " feature " in information processing.These medically verified features Each finger is different, and these features are with uniqueness and permanently.Therefore we can be a people Fingerprint with him is mapped, the fingerprint characteristic by comparing him and the fingerprint characteristic that pre-saves, so that it may verify his true Real identity.Fingerprint detection good can judge and the true biometric identity of one people of definition, to reduce in social activities Trust cost.Fundamentally change economy and society communication patterns, improves efficiency.Future society utilizes the field of biological identification technology Conjunction will be more and more, and fingerprint identification technology is gradually improved, and fingerprint detection becomes more important.

Disadvantage of the prior art is that: existing information collecting device function is more single, does not have antistatic protection function, And be acquired and verify just for ID card information or finger print information, so that information is incomplete and accurate when information collection.

Utility model content

To solve the above-mentioned problems, the utility model proposes a kind of resident identification card fingerprint capturers, specifically, including referring to Line acquisition module, ESD protective module, main control module, clock processing module, reset function module, external interface module and power supply Management module, the input terminal of the output end electrical connection central processing unit of the finger print acquisition module, the ESD protective module are two-way It is electrically connected finger print acquisition module, the two-way electrical connection main control module of clock processing module, the output of the reset function module The input terminal of end electrical connection main control module, the two-way electrical connection main control module of external interface module, the power management module Output end electrical connection main control module input terminal；The ESD protective module is used to protect fingerprint sensor data port, Can prevent using when caused by electrostatic damage.

Further, the ESD protective module includes bidirectional ESD protective device, the bidirectional ESD protective device and fingerprint The two-way electrical connection of acquisition module.

Further, the bidirectional ESD protective device is ESD9B5.0ST5G parastat.

Further, the ESD protective module includes Transient Voltage Suppressor, and the Transient Voltage Suppressor is two-way to be electrically connected Connect finger print acquisition module.

Further, the Transient Voltage Suppressor is RLSD32A241C antistatic protection pipe.

Further, the finger print acquisition module includes Micro-USB interface circuit, the Micro-USB interface circuit For connecting host computer and external equipment.

Further, the main control module includes STM32F103 microprocessor.

The utility model has the beneficial effects that:

1) the utility model carries out living body acquisition for somatic fingerprint, at fingerprint typing, antistatic protection, image Reason, fingerprint comparison and template store function；

2) the utility model has that wet finger is more adaptable, and environment resistant interference is stronger, and image resolution ratio is high, without abnormal Become, picture quality is good, highly-safe advantage；

3) the utility model can also may make up social security fingerprint acquisition system, online by the application software that matches therewith Fingerprint instrument, online fingerprint attendance machine, fingerprint the machine protection system and fingerprint network login system.

Detailed description of the invention

Fig. 1 is a kind of functional block diagram of resident identification card fingerprint capturer.

Specific embodiment

For a clearer understanding of the technical features, objectives and effects of the utility model, now compareing Detailed description of the invention Specific embodiment of the present utility model.

The utility model proposes a kind of resident identification card fingerprint capturers, as shown in Figure 1, including finger print acquisition module, ESD Protective module, main control module, clock processing module, reset function module, external interface module and power management module, the finger The input terminal of the output end electrical connection central processing unit of line acquisition module, the two-way electrical connection fingerprint collecting of ESD protective module The output end of module, the two-way electrical connection main control module of clock processing module, the reset function module is electrically connected master control mould The input terminal of block, the two-way electrical connection main control module of external interface module, the output end electrical connection of the power management module The input terminal of main control module；The ESD protective module for being protected to fingerprint sensor data port, can prevent using when make At electrostatic damage.

In the embodiments of the present invention 1, the ESD protective module includes bidirectional ESD protective device, described two-way ESD protective device with finger print acquisition module is two-way is electrically connected, the bidirectional ESD protective device is that ESD9B5.0ST5G antistatic is protected Protect device.The finger print acquisition module includes Micro-USB interface circuit, and the Micro-USB interface circuit is upper for connecting Machine and external equipment.

In the embodiments of the present invention 1, the main control module includes STM32F103C8T6 microprocessor.

In the embodiments of the present invention 1, the clock processing module is designed using frequency division of software, and clock is more smart It will definitely lean on.

In the embodiments of the present invention 2, the ESD protective module includes Transient Voltage Suppressor, the transient state electricity The two-way electrical connection finger print acquisition module of suppressor is pressed, the Transient Voltage Suppressor is RLSD32A241C antistatic protection pipe.

The above is only the preferred embodiment of the utility model, it should be understood that the utility model is not limited to herein Disclosed form, should not be regarded as an exclusion of other examples, and can be used for other combinations, modifications, and environments, and Can be in contemplated scope described herein, modifications can be made through the above teachings or related fields of technology or knowledge.And this field The modifications and changes that personnel are carried out do not depart from the spirit and scope of the utility model, then all should be in right appended by the utility model It is required that protection scope in.

Claims (7)

1. a kind of resident identification card fingerprint capturer, which is characterized in that including finger print acquisition module, ESD protective module, master control mould Block, clock processing module, reset function module, external interface module and power management module, the finger print acquisition module it is defeated Outlet is electrically connected the input terminal of central processing unit, the two-way electrical connection finger print acquisition module of ESD protective module, at the clock The two-way electrical connection main control module of module is managed, the input terminal of the output end electrical connection main control module of the reset function module is described The two-way electrical connection main control module of external interface module, the input of the output end electrical connection main control module of the power management module End；The ESD protective module for being protected to fingerprint sensor data port, can prevent using when caused by electrostatic damage.

2. a kind of resident identification card fingerprint capturer according to claim 1, which is characterized in that the ESD protective module Including bidirectional ESD protective device, the bidirectional ESD protective device with finger print acquisition module is two-way is electrically connected.

3. a kind of resident identification card fingerprint capturer according to claim 2, which is characterized in that the bi-directional ESD protection Device is ESD9B5.0ST5G parastat.

4. a kind of resident identification card fingerprint capturer according to claim 1, which is characterized in that the ESD protective module Including Transient Voltage Suppressor, the two-way electrical connection finger print acquisition module of Transient Voltage Suppressor.

5. a kind of resident identification card fingerprint capturer according to claim 4, which is characterized in that the transient voltage inhibits Device is RLSD32A241C antistatic protection pipe.

6. a kind of resident identification card fingerprint capturer according to claim 1, which is characterized in that the finger print acquisition module Including Micro-USB interface circuit, the Micro-USB interface circuit is for connecting host computer and external equipment.

7. a kind of resident identification card fingerprint capturer according to claim 1, which is characterized in that the main control module includes STM32F103 microprocessor.