CN2580523Y - Electronic key capable of identifying finger print - Google Patents
Electronic key capable of identifying finger print Download PDFInfo
- Publication number
- CN2580523Y CN2580523Y CN 02254679 CN02254679U CN2580523Y CN 2580523 Y CN2580523 Y CN 2580523Y CN 02254679 CN02254679 CN 02254679 CN 02254679 U CN02254679 U CN 02254679U CN 2580523 Y CN2580523 Y CN 2580523Y
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- CN
- China
- Prior art keywords
- circuit
- key
- fingerprint
- interface circuit
- power supply
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model relates to an electronic key capable of identifying fingerprints, which comprises a key body. The utility model is characterized in that the key body is provided with a circuit section formed by connecting a communication interface circuit, a fingerprint sensor circuit, a power supply circuit, a memory circuit, and a fingerprint identifying module circuit, wherein, the fingerprint identifying module circuit is respectively connected with portion interfaces of the communication interface circuit, the fingerprint sensor circuit, the power supply circuit, and the memory circuit, the power supply output end of the power supply circuit is connected with the power supply ends of other circuits to supply working power supply, and the interface circuit is an IrDA interface circuit or an RF radio-frequency interface circuit. The utility model has the advantages that the high security can be realized by the key combined with a strong fingerprint identification function, the key has the functions of intelligent management and authorization, the key can not be duplicated and is unique, multiple keys correspond to multiple locks, and the individuation of the key is realized to protect the privacy of users' fingerprints.
Description
Technical field
The utility model relates to a kind of electronics opening device of discerning identity, relates in particular to a kind of electron key that separates with actuating unit, can discern fingerprint.
Background technology
Mechanical key easily cracks, duplicates and falsely uses; Used " key " (finger) of fingerprint lockset can not authorize other people to use.At present in known unlatching one executive system based on identification authentication mode; 1), token and password system (being usually used in ATM withdrawal machine, access control system, proof box, vehicle wireless anti-theft door lock or the like): owing to rely on safeguard measures such as smart card, identification number, password, have token lost, copied, password easily cracks equivalent risk.In order to improve security, must increase the complexity of password and password, cause the difficulty in the use.Especially in operation during multiple devices, safety with easy-to-use between caused and conflicted, in the specific implementation, have to yield to ease for use, the security of reduction system.2), adopt the gate control system of biological identification technology: because of using biological characteristic as basis of characterization, need not remember ID (identity number) and password, also needn't carry smart card and so on, be recognition methods the most convenient so far and safety, is widely used in fingerprint entrance guard system.But its authentication equipment and actuating unit are connected as a single entity, in the common equipment of individual privacy (biological information) must being pre-recorded; And do not possess common key with the flexible Application function that possesses (as lend etc.).Not only the privacy to user fingerprints causes infringement, and finger print identifying part damages easily as shared device, and maintenance cost is big.
Summary of the invention
Can not discern possessor's true and false in order to overcome the existing machinery key, and the fingerprint lockset limitation of only limitting the owner to open in person, the purpose of this utility model is to provide a kind of electron key that can discern fingerprint that improves security performance.
The technical scheme that its technical matters that solves the utility model adopts.This electron key that can discern fingerprint comprises the key main body, and key body is provided with the circuit part that is connected to form by communication interface circuit, fingerprint sensor circuit, power circuit, memory circuitry, fingerprint identification module circuit; Wherein the fingerprint identification module circuit joins with the part interface of communication interface circuit, fingerprint sensor circuit, power circuit, memory circuitry respectively; The power output end of power circuit and the power end of other circuit join so that working power to be provided.
The technical scheme that its technical matters that solves the utility model adopts can also be further perfect.Described interface circuit is IrDA interface circuit or RF radio-frequency interface circuit.Fingerprint sensor circuit is made of sensor chip U1 and peripheral circuit, and the IrDA interface circuit mainly is made of interface chip U2 and peripheral circuit, carries out signal data by the IrDA interface circuit with topworks that is subjected to key control and management devices and transmits.
The effect that the utility model is useful is: 1), realize high security in conjunction with powerful finger print identifying function.2), the intelligent management of key and authorization function; 3), not reproducible (uniqueness); 4), corresponding many locks of many keys, promptly one can open legal key manyly different locks, and a lock can have many different legal key.5), realize the personalization of key, the privacy of protection user fingerprints, user fingerprints only is stored in the privately owned key, does not reveal away from key in all authentications and transmission course.
Description of drawings
Fig. 1 is the utility model system architecture theory diagram;
Fig. 2 is a flow diagram of the present utility model;
Fig. 3 is circuit theory diagrams of the present utility model;
Embodiment:
Below in conjunction with embodiment the utility model is further described.As shown in figures 1 and 3, this electron key that can discern fingerprint comprises key main body 1, and key body 1 is provided with the circuit part that is connected to form by IrDA interface circuit, fingerprint sensor circuit, power circuit, memory circuitry, fingerprint identification module circuit; Wherein the fingerprint identification module circuit joins with the part interface of IrDA interface circuit, fingerprint sensor circuit, power circuit, memory circuitry respectively; The power output end of power circuit and the power end of other circuit join so that working power to be provided.Fingerprint sensor circuit is made of sensor chip U1 and peripheral circuit, the IrDA interface circuit mainly is made of interface chip U2 and peripheral circuit, can bring into play various function management devices by IrDA interface circuit and topworks that is subjected to key control and key and carry out signal data and transmit.Concrete wiring is: 3,2 and 9 pin of interface chip U2 join with HD0, HD1 and the RST pin of fingerprint identification module circuit respectively; The HD3 pin of fingerprint identification module U3 is connected with power supply by D1, R8; 43 pin of the sensor chip U1 of fingerprint sensor circuit are connected with power supply by D2, R9; The CS of U3, TXE, DataIn ,/RESET is connected with 12,15,49,57 pin of U1 respectively; The DataOut of U3 is connected with 48 pin of U1 by R2; U3 /INT1 is connected with 11 pin of U1 by R3.
Principle of work: can not discern possessor's true and false in order to overcome the existing machinery key, and the fingerprint lockset limitation of only limitting the owner to open in person, the utility model has been installed fingerprint identification module on " key ", and whether the fingerprint of opening the people with identification is legal; And increase and authorize and the coerce-proof function; The fingerprint authentication function is separated from known base system, fingerprint authentication is embedded in the fingerprint key goes simultaneously.Potential safety hazard when being coupled with actuating unit in order to stop opening device (fingerprint key), and adopt the random number safety authentication protocol, carry out both sides' communication.
The course of work: as shown in Figure 2, in advance with legal user's fingerprint storage in key.When opening with it, the user presses finger on the living body finger print sensor, its fingerprint is collected and recorded by fingerprint identification module wherein at once, through calculation process, the fingerprint that is stored in advance in the key is compared, judge this living body finger print whether with key in the fingerprint of typing in advance, be the fingerprint of same finger.Reach the purpose of confirming legal user with this.Then,, carry out coded communication, impel it to finish corresponding breakdown action with actuating station by the infrared interface of fingerprint key.
Claims (4)
1, a kind of electron key that can discern fingerprint, comprise key main body (1), it is characterized in that: key body (1) is provided with the circuit part that is connected to form by communication interface circuit, fingerprint sensor circuit, power circuit, memory circuitry, fingerprint identification module circuit; Wherein the fingerprint identification module circuit joins with the part interface of communication interface circuit, fingerprint sensor circuit, power circuit, memory circuitry respectively; The power output end of power circuit and the power end of other circuit join so that working power to be provided.
2, the electron key that can discern fingerprint according to claim 1 is characterized in that: described communication interface circuit is the IrDA interface circuit.
3, the electron key that can discern fingerprint according to claim 1 is characterized in that: described communication interface circuit is the RF radio-frequency interface circuit.
4, the electron key that can discern fingerprint according to claim 1 and 2, it is characterized in that: fingerprint sensor circuit is made of sensor chip U1 and peripheral circuit, the IrDA interface circuit mainly is made of interface chip U2 and peripheral circuit, carries out signal data by the IrDA interface circuit with topworks that is subjected to key control and management devices and transmits.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02254679 CN2580523Y (en) | 2002-09-29 | 2002-09-29 | Electronic key capable of identifying finger print |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02254679 CN2580523Y (en) | 2002-09-29 | 2002-09-29 | Electronic key capable of identifying finger print |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2580523Y true CN2580523Y (en) | 2003-10-15 |
Family
ID=33723429
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02254679 Expired - Lifetime CN2580523Y (en) | 2002-09-29 | 2002-09-29 | Electronic key capable of identifying finger print |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2580523Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100389723C (en) * | 2004-12-24 | 2008-05-28 | 富士通株式会社 | Personal authentication apparatus |
| CN102518339A (en) * | 2012-01-09 | 2012-06-27 | 卓盈微电子（昆山）有限公司 | Fingerprint sensing anti-theft key |
-
2002
- 2002-09-29 CN CN 02254679 patent/CN2580523Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100389723C (en) * | 2004-12-24 | 2008-05-28 | 富士通株式会社 | Personal authentication apparatus |
| CN102518339A (en) * | 2012-01-09 | 2012-06-27 | 卓盈微电子（昆山）有限公司 | Fingerprint sensing anti-theft key |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20120929 Granted publication date: 20031015 |