CN102436690A - Fingerprint lock based on digital signal processor (DSP) - Google Patents
Fingerprint lock based on digital signal processor (DSP) Download PDFInfo
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- CN102436690A CN102436690A CN2011104313124A CN201110431312A CN102436690A CN 102436690 A CN102436690 A CN 102436690A CN 2011104313124 A CN2011104313124 A CN 2011104313124A CN 201110431312 A CN201110431312 A CN 201110431312A CN 102436690 A CN102436690 A CN 102436690A
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Abstract
The invention provides a fingerprint lock based on a digital signal processor (DSP), which comprises a DSP core processor BF531, and a VFDA02 fingerprint sensor, a power module, a memory, a man-machine interaction module, a universal asynchronous receiver/transmitter (UART) interface data transmission interface and a fingerprint lock module which are connected with the DSP core processor BF531. During use, in a fingerprint identification system, only when a correct fingerprint is identified, the lock unlocks; because the fingerprint has uniqueness, the safety of the lock is improved; and in the using process, the dependence on a key and a password is broken away, and life becomes simpler and more convenient.
Description
Technical field
The present invention relates to electronic technology field, 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.
Summary of the invention
The objective of the invention is to provides a kind of safe, the Fingerprint Lock based on DSP that dependable performance is stable to the deficiency of existing lockset.
The present invention 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 present invention has following beneficial effect:
The present invention adopts fingerprint recognition system, and have only when recognizing correct fingerprint lockset and just open, because fingerprint has uniqueness, thus improved the security of lockset, and broken away from dependence in the use to key and password, the life that is is more simple and convenient.
Description of drawings
Fig. 1 is a system construction drawing of the present invention.
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, 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104313124A CN102436690A (en) | 2011-12-21 | 2011-12-21 | Fingerprint lock based on digital signal processor (DSP) |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104313124A CN102436690A (en) | 2011-12-21 | 2011-12-21 | Fingerprint lock based on digital signal processor (DSP) |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102436690A true CN102436690A (en) | 2012-05-02 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011104313124A Pending CN102436690A (en) | 2011-12-21 | 2011-12-21 | Fingerprint lock based on digital signal processor (DSP) |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102436690A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110910539A (en) * | 2019-11-29 | 2020-03-24 | 中国科学院微电子研究所 | Self-powered fingerprint device and intelligent fingerprint lock |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2429595Y (en) * | 2000-07-21 | 2001-05-09 | 长春鸿达高技术集团有限公司 | Wireless fingerprint lock |
| WO2005080719A1 (en) * | 2004-02-19 | 2005-09-01 | Sang Rak Lee | Automatic image pickup and storage device for fingerprint recognition door lock |
| CN202433973U (en) * | 2011-12-21 | 2012-09-12 | 成都众询科技有限公司 | Fingerprint lock based DSP (digital signal processor) |
-
2011
- 2011-12-21 CN CN2011104313124A patent/CN102436690A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2429595Y (en) * | 2000-07-21 | 2001-05-09 | 长春鸿达高技术集团有限公司 | Wireless fingerprint lock |
| WO2005080719A1 (en) * | 2004-02-19 | 2005-09-01 | Sang Rak Lee | Automatic image pickup and storage device for fingerprint recognition door lock |
| CN202433973U (en) * | 2011-12-21 | 2012-09-12 | 成都众询科技有限公司 | Fingerprint lock based DSP (digital signal processor) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110910539A (en) * | 2019-11-29 | 2020-03-24 | 中国科学院微电子研究所 | Self-powered fingerprint device and intelligent fingerprint lock |
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Application publication date: 20120502 |