CN201378322Y - Fingerprint acquisition device and fingerprint recognition system - Google Patents
Fingerprint acquisition device and fingerprint recognition system Download PDFInfo
- Publication number
- CN201378322Y CN201378322Y CN200920022024U CN200920022024U CN201378322Y CN 201378322 Y CN201378322 Y CN 201378322Y CN 200920022024 U CN200920022024 U CN 200920022024U CN 200920022024 U CN200920022024 U CN 200920022024U CN 201378322 Y CN201378322 Y CN 201378322Y
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- extraction circuit
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Abstract
The utility model discloses a fingerprint acquisition device which comprises a housing, a fingerprint extraction circuit arranged in the housing, and a state indication circuit connected with the fingerprint extraction circuit and used for displaying the fingerprint extraction state under the control of the fingerprint extraction circuit. The fingerprint extraction circuit comprises a data input and output interface connected with external equipment and used for outputting fingerprint data to and receiving return messages from the equipment. The fingerprint acquisition device provided by the utility model only comprises the fingerprint extraction circuit, the state indication circuit, and the data input and output interface, so that the fingerprint acquisition device has the advantages of simple structure, lower cost, portability, and convenient popularization. The utility model also provides a fingerprint recognition system.
Description
Technical field
The utility model relates to data collecting field, relates in particular to a kind of fingerprint acquisition device and fingerprint recognition system.
Background technology
Data security is more and more important at present, also becomes one of factor that influences people's normal life.As existing banking system, except the safety of management software platform own, client's data is also very important, as client password.Transacting business input password is stolen by other people very easily; And for example to the protection of personal memory device, it is dangerous that data password is set, and is easy to be cracked.Only, data password comes protected data by being set, and not only dangerous, and in a single day forget Password, can bring a lot of troubles, even obliterated data.And the existence of fingerprint recognition just can address this problem.
And on the other hand, existing fingerprint identification device mostly will gather and identification is integrated, and volume is bigger, design is complicated, and price is also comparatively expensive, thereby can not popularize in daily use, can't become and carry out the standing instrument that finger print information is gathered in people's daily life.And existing fingerprint recognition system mostly is confined in the local scope, and its function has just obtained restriction.
The utility model content
Technical problem to be solved in the utility model is to provide a kind of fingerprint acquisition device simple in structure.
In order to solve the problems of the technologies described above, the utility model proposes a kind of fingerprint acquisition device, comprise housing, the condition indication circuit that is arranged at fingerprint extraction circuit in this housing, connects this fingerprint extraction circuit and under its control the state of fingerprint extraction is shown, described fingerprint extraction circuit comprise and connect external unit and to its output finger print data and receive the data input/output interface of return message.
Wherein, described fingerprint extraction circuit comprises the fingerprint extraction chip and connects the sensor of this chip; Described data input/output interface is a USB interface.
Wherein, described condition indication circuit comprises sound/optical generator, and this sound/optical generator is connected with described fingerprint extraction circuit to obtain indication information and to carry out corresponding actions according to this information.
Wherein, described return message comprises at least a in the indication information of recognition result information, identification quality information, operation.
In order to solve the problems of the technologies described above, the utility model also proposes a kind of fingerprint recognition system on the other hand, comprises in order to gather the fingerprint acquisition device of fingerprint, is connected and is used for carrying out the fingerprint identification device of fingerprint recognition by cable and this fingerprint acquisition device;
Wherein, described fingerprint acquisition device comprises housing, the condition indication circuit that is arranged at fingerprint extraction circuit in this housing, connects this fingerprint extraction circuit and under its control the state of fingerprint extraction is shown, described fingerprint extraction circuit comprise and connect described fingerprint identification device and to its output finger print data and receive the data input/output interface of return message.
Wherein, described fingerprint acquisition device and described fingerprint identification device all are arranged on this locality.
Wherein, also comprise and connect described fingerprint acquisition device to obtain the local host of finger print information, so that described finger print information is sent to described fingerprint identification device, described local host and described fingerprint identification device are distributed in the diverse location of network by network UNICOM for this local host and described fingerprint identification device.
Wherein, described fingerprint acquisition device is sent to described fingerprint identification device with the finger print data of gathering by USB interface.
Wherein, described fingerprint extraction circuit comprises the fingerprint extraction chip and connects the sensor of this chip;
Described condition indication circuit comprises sound/optical generator, and this sound/optical generator is connected with described fingerprint extraction circuit to obtain indication information and to carry out corresponding actions according to this information;
Wherein, described return message comprises at least a in the indication information of recognition result information, identification quality information, operation.
In the utility model, because fingerprint acquisition device only comprises fingerprint extraction circuit and condition indication circuit and data input/output interface, thereby it is simple in structure, and cost is lower, is easy to carry and popularizes.
In addition, because the existence of described fingerprint acquisition device makes the establishment of based on network fingerprint recognition system become simple, realized reliable network identity identification.
Description of drawings
Fig. 1 is the structured flowchart of an a kind of embodiment of fingerprint acquisition device in the utility model;
Fig. 2 is the synoptic diagram of an embodiment of circuit structure embodiment illustrated in fig. 1;
Fig. 3 is the structural representation of an a kind of embodiment of fingerprint recognition system in the utility model.
Embodiment
The utility model is elaborated below in conjunction with accompanying drawing.
With reference to figure 1, illustrate the structured flowchart of an a kind of embodiment of fingerprint acquisition device in the utility model.As shown in the figure, a kind of fingerprint acquisition device comprises fingerprint extraction circuit 11, status indicator LED 12, USB holding circuit 13, USB connector 14, crystal oscillator 15.
Wherein, described fingerprint extraction circuit 11 is used for the data that take the fingerprint as core component after user's finger presses is gone down.Comprise fingerprint extraction chip and sensor in the described fingerprint extraction circuit 11, this sensor then as with the part of user's finger contacts, the data of its collection just are sent in the described fingerprint extraction chip.
Described USB connector 14 is connected with described fingerprint extraction circuit 11 by the USB holding circuit, to prevent that the external power source shakiness from damaging device and the more reliable transmission of protected data.
The finger print data that described fingerprint extraction circuit 11 is collected is sent to external unit by described USB connector 14.
Described crystal oscillator 15 provides work clock for the operate as normal of described fingerprint extraction circuit 11.
12 controls in described fingerprint extraction circuit 11 of described status indicator LED flicker, to show the fingerprint extraction state and the user is indicated; The acquisition of described fingerprint extraction status information then is to obtain from described external unit by USB connector 14, is perhaps directly produced by described fingerprint extraction circuit 11.
For example, after described fingerprint extraction circuit 11 is sent to described external unit with the finger print data that extracts, this external unit is discerned the finger print data that obtains and recognition result is sent to described fingerprint extraction circuit 11, is shown by the described status indicator LED 12 of these fingerprint extraction circuit 11 controls; Perhaps, when described external unit finds that fingerprint that fingerprint extraction circuit 11 extracted can't identification, then return corresponding message to described fingerprint extraction circuit 11, indicate described fingerprint extraction circuit 11 to gather again or other actions, and this is gathered again or the indication of other actions also shows by described status indicator LED 12;
On the other hand, 11 of described fingerprint extraction circuit also indicate the user how to operate by described status indicator LED 12 when carrying out fingerprint collecting, for example indicating the user to point by flickering of LED lamp can push, perhaps can break away from or the like, thereby make things convenient for the user, hommization more.
With reference to figure 2, illustrate the synoptic diagram of an embodiment of circuit structure embodiment illustrated in fig. 1.As shown in the figure, comprise fingerprint collecting chip IC 1, the corresponding connection of differential signal end that the USN among its differential signal pin DP, DM and the figure connects.Wherein, its DP pin connects power supply VCC by pull-up resistor R3.
The XTAL1 of described fingerprint collecting chip IC 1 then is connected outside oscillatory circuit with the XTAL2 pin, crystal oscillator X1 as shown in FIG., and capacity earth is passed through at the two ends of this crystal oscillator X1 again.
The ISET pin of described fingerprint collecting chip IC 1 then connects this chip by resistance R 1 simulation ground VSSA1 connection can realize regulating the internal reference electric current by the resistance stool and urine that changes resistance R 1, thereby reach the purpose of regulating sensitivity.
Resistance and LED 1 then have been connected in series between the P0 pin of described fingerprint collecting chip IC 1 and the VSS pin; Its WAIT pin then is connected to VCC by LED2 and R2; So, described LED 1 and LED2 just flicker in the control of described fingerprint collecting chip IC 1, the two one of can be independent carry out state indication, also can carry out the state indication by the combination that flickers.Thereby the circuit that described LED1 and LED2 constituted is just as condition indication circuit.
For example, gathering when central when described fingerprint collecting chip IC 1, described WAIT pin keeps low level always, and this moment, described LED2 was in bright state; After collecting work finishes, then described WAIT pin output high level, this moment, described LED2 just was in the state that goes out.Thereby prompting operation person is to gather when LED2 is bright, and this moment, finger did not break away from, and when LED2 knocked out, collection finished, and this moment, operator's finger can break away from.
Described LED1 then can be used as power light, shows when promptly it is bright that fingerprint acquisition device is in running order at this moment, shows that when it goes out being in off working state can't carry out fingerprint collecting.
And the described status information that obtains from external unit then can comprise recognition result information and identification quality information.After described fingerprint extraction device is sent to described external unit with the finger print data that extracts, when this external unit identification decision meets a certain rule, then sends confirmation, otherwise send NACK messages; This is determined or NACK messages is sent to described fingerprint collecting chip IC 1 by described USB connector; In an embodiment of the present utility model, the described LED1 of this fingerprint collecting chip IC 1 control constantly glimmers when receiving NACK messages, determines that when receiving the described LED2 of this fingerprint collecting chip IC 1 control of information glimmers.
When described external unit finds that the finger print data from described fingerprint extraction device of its reception can't be discerned owing to the reason of acquisition quality, then also send NACK messages about the identification quality information to described fingerprint collecting chip IC 1, this fingerprint collecting chip IC 1 alternately flicker of control described LED1, LED2.
Wherein, described USB holding circuit does not further specify at this owing to be known technology.And, because described sensor is the part of described fingerprint collecting chip IC 1 in practice, and all be the part of some known chips, thereby it no longer described.
With reference to figure 3, illustrate the structural representation of an a kind of embodiment of fingerprint recognition system in the utility model.As shown in the figure, comprise server 31, router three 2, local host 33, fingerprint acquisition device 34.
Wherein, described local host 33 carries out network with described server 31 by router three 2 and is connected, the diverse location of the two distribution and its place network.Described fingerprint acquisition device 34 then is connected with described local host 33 local, and the finger print data of its collection is sent to described local host 33, and this local host 33 is sent to described server 31 with this finger print data by described network again.
Described server 31 then exists as above-mentioned external unit, it is stored identification to described finger print data and returns described recognition result information, identification quality information, operation prompt information or the like to described local host 33, and is sent to described fingerprint acquisition device 34 by this local host 33.34 of this fingerprint acquisition devices can be the structures among the embodiment shown in Fig. 1.
In another embodiment of the present utility model, fingerprint recognition system described in the utility model all is arranged at this locality, than embodiment illustrated in fig. 3, then be that the storage that server 31 is performed, the function of identification are integrated in the described local host 33,33 conducts of described local host this moment storage, the identification equipment in the local fingerprint recognition system.Because structure is comparatively similar with respect to embodiment illustrated in fig. 3, does not further set forth at this.
Need to prove, data input/output interface described in the utility model and the USB interface that is limited in this embodiment to be set forth, it can also adopt other any interfaces, for example serial ports etc.And the form that described condition indication circuit is not limited to use up is indicated, it can also adopt the mode of loudspeaker, promptly, send the different different states of sound prompting user by the described loudspeaker of this fingerprint collecting chip controls by the loudspeaker that is connected with described fingerprint collecting chip is set.Because structure is comparatively simple, does not give unnecessary details at this.
Above disclosed only is a kind of preferred embodiment of the utility model, can not limit the interest field of the utility model certainly with this, and therefore the equivalent variations of being done according to the utility model claim still belongs to the scope that the utility model is contained.
Claims (10)
1, a kind of fingerprint acquisition device, it is characterized in that, comprise housing, the condition indication circuit that is arranged at fingerprint extraction circuit in this housing, connects this fingerprint extraction circuit and under its control the state of fingerprint extraction is shown, described fingerprint extraction circuit comprise and connect external unit and to its output finger print data and receive the data input/output interface of return message.
2, fingerprint acquisition device according to claim 1 is characterized in that, described fingerprint extraction circuit comprises the fingerprint extraction chip and connects the sensor of this chip; Described data input/output interface is a USB interface.
3, fingerprint acquisition device according to claim 1 and 2 is characterized in that, described condition indication circuit comprises sound/optical generator, and this sound/optical generator is connected with described fingerprint extraction circuit to obtain indication information and to carry out corresponding actions according to this information.
4, fingerprint acquisition device according to claim 1 and 2 is characterized in that, described return message comprises at least a in the indication information of recognition result information, identification quality information, operation.
5, a kind of fingerprint recognition system is characterized in that, comprises in order to gather the fingerprint acquisition device of fingerprint, is connected and is used for carrying out the fingerprint identification device of fingerprint recognition by cable and this fingerprint acquisition device;
Wherein, described fingerprint acquisition device comprises housing, the condition indication circuit that is arranged at fingerprint extraction circuit in this housing, connects this fingerprint extraction circuit and under its control the state of fingerprint extraction is shown, described fingerprint extraction circuit comprise and connect described fingerprint identification device and to its output finger print data and receive the data input/output interface of return message.
6, fingerprint recognition system according to claim 5 is characterized in that, described fingerprint acquisition device and described fingerprint identification device all are arranged on this locality.
7, fingerprint recognition system according to claim 5, it is characterized in that, also comprise and connect described fingerprint acquisition device to obtain the local host of finger print information, so that described finger print information is sent to described fingerprint identification device, described local host and described fingerprint identification device are distributed in the diverse location of network by network UNICOM for this local host and described fingerprint identification device.
According to each described fingerprint recognition system in the claim 5 to 7, it is characterized in that 8, described fingerprint acquisition device is sent to described fingerprint identification device with the finger print data of gathering by USB interface.
According to each described fingerprint recognition system in the claim 5 to 7, it is characterized in that 9, described fingerprint extraction circuit comprises the fingerprint extraction chip and connects the sensor of this chip;
Described condition indication circuit comprises sound/optical generator, and this sound/optical generator is connected with described fingerprint extraction circuit to obtain indication information and to carry out corresponding actions according to this information;
According to each described fingerprint recognition system in the claim 5 to 7, it is characterized in that 10, described return message comprises at least a in the indication information of recognition result information, identification quality information, operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920022024U CN201378322Y (en) | 2009-02-16 | 2009-02-16 | Fingerprint acquisition device and fingerprint recognition system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920022024U CN201378322Y (en) | 2009-02-16 | 2009-02-16 | Fingerprint acquisition device and fingerprint recognition system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201378322Y true CN201378322Y (en) | 2010-01-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920022024U Expired - Fee Related CN201378322Y (en) | 2009-02-16 | 2009-02-16 | Fingerprint acquisition device and fingerprint recognition system |
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| CN (1) | CN201378322Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103455746A (en) * | 2013-09-10 | 2013-12-18 | 百度在线网络技术（北京）有限公司 | Head-wearing display equipment |
| CN106469263A (en) * | 2015-08-14 | 2017-03-01 | 特科芯有限公司 | Display lamp manages the portable hard drive implementation method of encrypting fingerprint |
-
2009
- 2009-02-16 CN CN200920022024U patent/CN201378322Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103455746A (en) * | 2013-09-10 | 2013-12-18 | 百度在线网络技术（北京）有限公司 | Head-wearing display equipment |
| CN103455746B (en) * | 2013-09-10 | 2016-10-05 | 百度在线网络技术（北京）有限公司 | head-mounted display apparatus |
| CN106469263A (en) * | 2015-08-14 | 2017-03-01 | 特科芯有限公司 | Display lamp manages the portable hard drive implementation method of encrypting fingerprint |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100106 Termination date: 20120216 |