CN202433973U - Fingerprint lock based DSP (digital signal processor) - Google Patents
Fingerprint lock based DSP (digital signal processor) Download PDFInfo
- Publication number
- CN202433973U CN202433973U CN 201120538462 CN201120538462U CN202433973U CN 202433973 U CN202433973 U CN 202433973U CN 201120538462 CN201120538462 CN 201120538462 CN 201120538462 U CN201120538462 U CN 201120538462U CN 202433973 U CN202433973 U CN 202433973U
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- fingerprint
- fingerprint lock
- lock
- dsp
- module
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Abstract
The utility model provides a fingerprint lock based on DSP. The fingerprint lock comprises a DSP core processor BF531, and a VFDA02 fingerprint sensor, a power module, a memory, a man-machine interaction module, a UART (universal asynchronous receiver transmitter) interface data transmission interface, and a fingerprint lock module, which are connected with the DSP core processor BF531. When in use, the fingerprint recognition system is opened only when recognizing the correct fingerprint lock, and the security of the lock is enhanced due to the uniqueness of fingerprint. In addition, the fingerprint lock obviates dependence on keys and passwords, thereby making life simpler and more convenient.
Description
Technical field
The utility model relates to electronic technology field, and a kind of Fingerprint Lock based on DSP is provided.
Background technology
At present all be to use traditional mechanical lock mostly on the market, adopt key operatedly, mechanical lock is cracked by the people easily, and key duplicates by the people easily, falsely uses poor stability.Also having a kind of is exactly electronic password lock, and lockset is opened behind the input proper password, and the security performance of coded lock increases relatively, but the risk that also exists password to be peeped or falsely use by the people, and the user also often bothers because of password passes out of mind very much.
The utility model content
The purpose of the utility model is to provide a kind of safe, the Fingerprint Lock based on DSP that dependable performance is stable to the deficiency of existing lockset.
The utility model is for realizing that above-mentioned purpose adopts following technical scheme:
A kind of Fingerprint Lock based on DSP is characterized in that comprising,
DSP core processor BF531: the key control unit of system;
VFDA02 fingerprint sensor: be used to gather finger print information;
Power module: for system provides direct current and alternating current;
Storer: comprise SDRAM storer and FLASH storer; Said SDRAM adopts K4S161622H; Be used for being stored in fingerprint collecting and the interim fingerprint image of handling; Said FLASH adopts SST39VFl601, is used for storing the algorithmic code and the finger print data of fingerprint recognition, when reset signal occurring, accomplishes the process of the bootstrap loading that powers on simultaneously.
Human-computer interaction module: comprise that light emitting diode, button and LCD form, light emitting diode mainly is used for the working condition of display system, like power supply, powers on, and resets, and LCD is used for showing the result of fingerprint collecting, registration, coupling;
UART interface data transmission interface: be used for system and communicate by letter with PC;
Fingerprint Lock module: form by motor and Fingerprint Lock, send rotating and reverse of signal control motor, the switch of control lock Fingerprint Lock by DSP;
Said VFDA02 fingerprint sensor, power module, storer, human-computer interaction module, UART interface data transmission interface and Fingerprint Lock module all are connected with DSP core processor BF531.
The utlity model has following beneficial effect:
The utility model adopts fingerprint recognition system; Have only when recognizing correct fingerprint lockset and just open, because fingerprint has uniqueness, so improved the security of lockset; And broken away from the dependence to key and password in the use, the life that is is more simple and convenient.
Description of drawings
Fig. 1 is the system construction drawing of the utility model.
Embodiment
A kind of Fingerprint Lock based on DSP is characterized in that comprising,
DSP core processor BF531: the key control unit of system;
VFDA02 fingerprint sensor: be used to gather finger print information;
Power module: for system provides direct current and alternating current;
Storer: comprise SDRAM storer and FLASH storer; Said SDRAM adopts K4S161622H; Be used for being stored in fingerprint collecting and the interim fingerprint image of handling; Said FLASH adopts SST39VFl601, is used for storing the algorithmic code and the finger print data of fingerprint recognition, when reset signal occurring, accomplishes the process of the bootstrap loading that powers on simultaneously.
Human-computer interaction module: comprise that light emitting diode, button and LCD form, light emitting diode mainly is used for the working condition of display system, like power supply, powers on, and resets, and LCD is used for showing the result of fingerprint collecting, registration, coupling;
UART interface data transmission interface: be used for system and communicate by letter with PC;
Fingerprint Lock module: form by motor and Fingerprint Lock, send rotating and reverse of signal control motor, the switch of control lock Fingerprint Lock by DSP;
Said VFDA02 fingerprint sensor, power module, storer, human-computer interaction module, UART interface data transmission interface and Fingerprint Lock module all are connected with DSP core processor BF531.
Claims (1)
1. the Fingerprint Lock based on DSP is characterized in that comprising,
DSP core processor BF531: the key control unit of system;
VFDA02 fingerprint sensor: be used to gather finger print information;
Power module: for system provides direct current and alternating current;
Storer: comprise SDRAM storer and FLASH storer; Said SDRAM adopts K4S161622H; Be used for being stored in fingerprint collecting and the interim fingerprint image of handling, said FLASH adopts SST39VFl601, is used for storing the algorithmic code and the finger print data of fingerprint recognition; When reset signal occurring, accomplish the process of the bootstrap loading that powers on simultaneously
Human-computer interaction module: comprise that light emitting diode, button and LCD form, light emitting diode mainly is used for the working condition of display system;
UART interface data transmission interface: be used for system and communicate by letter with PC;
Fingerprint Lock module: form by motor and Fingerprint Lock, send rotating and reverse of signal control motor, the switch of control lock Fingerprint Lock by DSP;
Said VFDA02 fingerprint sensor, power module, storer, human-computer interaction module, UART interface data transmission interface and Fingerprint Lock module all are connected with DSP core processor BF531.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120538462 CN202433973U (en) | 2011-12-21 | 2011-12-21 | Fingerprint lock based DSP (digital signal processor) |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120538462 CN202433973U (en) | 2011-12-21 | 2011-12-21 | Fingerprint lock based DSP (digital signal processor) |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202433973U true CN202433973U (en) | 2012-09-12 |
Family
ID=46783401
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120538462 Expired - Fee Related CN202433973U (en) | 2011-12-21 | 2011-12-21 | Fingerprint lock based DSP (digital signal processor) |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202433973U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102436690A (en) * | 2011-12-21 | 2012-05-02 | 成都众询科技有限公司 | Fingerprint lock based on digital signal processor (DSP) |
-
2011
- 2011-12-21 CN CN 201120538462 patent/CN202433973U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102436690A (en) * | 2011-12-21 | 2012-05-02 | 成都众询科技有限公司 | Fingerprint lock based on digital signal processor (DSP) |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120912 Termination date: 20121221 |