CN2680802Y - Fingerprint lock - Google Patents
Fingerprint lock Download PDFInfo
- Publication number
- CN2680802Y CN2680802Y CN 03277362 CN03277362U CN2680802Y CN 2680802 Y CN2680802 Y CN 2680802Y CN 03277362 CN03277362 CN 03277362 CN 03277362 U CN03277362 U CN 03277362U CN 2680802 Y CN2680802 Y CN 2680802Y
- Authority
- CN
- China
- Prior art keywords
- fingerprint
- lock
- interface
- cpu
- circuit
- 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 a low power consumption embedded fingerprint lock which can use fingerprints and ciphers to realize the unlocking and the locking action of the lock. The utility model adopts the technical proposal that the utility model comprises a lock body assembly with a lock core, a drive motor for controlling the unlocking action and the locking action of the lock core, a drive circuit of the drive motor, and an interface circuit which recognizes modules through fingerprint acquisition and is used for controlling the drive motor to drive the unlocking action and the locking action of the lock core through the acquisition, the operation, the characteristic value extraction and the recognition of images of the fingerprints which are obtained; on the other hand, the utility model can use the ciphers to unlock the lock through keyboard operation, so that a user can also unlock the lock without having a registered fingerprint in the fingerprint lock under the condition that the user grasps the ciphers.
Description
Technical field
The utility model relates to a kind of technology of electronic lock, is a little power consumption embedded fingerprint lock.
Background technology
The kind of existing lock is more, general mechanical lock assembles by machine components, adopts key unlocking, its confidentiality is relatively poor, so long as identical key just can be opened lock, its theftproof performance is relatively poor, is not suitable for place antitheft and that security performance is had relatively high expectations, also has a kind of lock of swiping the card in addition with IC-card, though improved safety, carry this IC-card but still take to carve, also brought a lot of inconvenience.
Technology contents
Technical task to be solved in the utility model provides a kind of Fingerprint Lock that opens or closes action that can utilize fingerprint and password to realize lock.
For solving above-mentioned technical task, the technical solution adopted in the utility model is a Fingerprint Lock, it comprises the lock body assembly that contains lock core, be used to control CD-ROM drive motor and the drive circuit thereof that lock core opens or closes action, it is characterized in that: the motor drive circuit of Fingerprint Lock links to each other with the fingerprint comparison control circuit with password comparison control circuit respectively, wherein password comparison circuit comprises a CPU (AT89C51), this CPU (AT89C51) connects a Cipher Processing memory, the control motor drive circuit, the ON/OFF of control drive motor lock core is moved, and also leaves the interface and the back-up source interface of keyboard interface and fingerprint comparison control circuit board on the CPU (AT89C51); The fingerprint comparison control circuit comprises a CPU (AT89C52), and the interface circuit and the fingerprint collecting head that connect a memory and connect a fingerprint acquiring and identifying module on it are controlled a fingerprint comparison motor drive circuit, thus the ON/OFF of CD-ROM drive motor control lock core.
Described fingerprint acquiring and identifying module mainly comprises a CPU (AT91M40800), and CPU (AT91M40800) is connected with program storage and at least one dynamic memory, and the interface of fingerprint collecting head and at least one external control interface.
CPU in the fingerprint comparison control circuit (AT89C52) can also connect one 485 interfaces.
Leave the warning output interface in the fingerprint comparison control circuit.
Described warning output interface connectable light or buzzer.
Owing to adopt said structure, on the one hand,, control the ON/OFF action of drive motor lock core through collection, computing, extraction characteristic value and the result after identification in order to obtain finger print image by the interface circuit of fingerprint acquiring and identifying module; On the other hand, can realize password unlocking, make and under the situation of grasping password, also can unblank the interior unregistered fingerprint person of Fingerprint Lock by keyboard operation; By keyboard operation, can not rely on PC simultaneously, on Fingerprint Lock, directly register fingerprint, can not need record is all emptied, carry out the fingerprint registration again by a piece selection deletion fingerprint.Can also increase lamp or buzzer in order to increase safety of the present utility model, when continuous several comparison is failed, then dormancy or warning.
Summary of drawings
Accompanying drawing 1 is a theory diagram of the present utility model;
Accompanying drawing 2 is the block diagram of the fingerprint acquiring and identifying module in the utility model;
Accompanying drawing 3 is the password comparison control circuit in the utility model;
Accompanying drawing 4 is the fingerprint comparison control circuit in the utility model.
The specific embodiment
As shown in Figure 1, the utility model mainly comprises password comparison control circuit and fingerprint comparison control circuit.Referring to Fig. 3, password comparison control circuit connects a back-up source input port by the back-up source interface on it 14, in order to support the emergency measure of this product under the short of electricity situation simultaneously.Catenation principle of the present utility model is as follows, and by two authentication input ports, promptly fingerprint collecting head and keyboard pass through fingerprint acquiring and identifying module respectively, control motor drive circuit by the fingerprint comparison control circuit correctness that draws authentication of making comparisons again.Determining by password comparison control circuit whether the password of being inputed is consistent with the former password of depositing in the product by the password of keyboard input equally, thereby whether to determine the driving of motor circuit, the purpose of these two inputs is consistent, promptly obtain the authentication of legal identity, and realize opening and closing by the control motor drive circuit effectively lock core.
As shown in Figure 2, fingerprint acquiring and identifying module mainly comprises a CPU31 (AT91M40800), we leave primary control program among the CPU31 (AT91M40800) in, it has comprised to the read-write of program storage 32 (EPROM27512) and control and to the read-write operation that refreshes of dynamic memory, in time with data updated, promptly gather the new fingerprint image data of coming, by the modular programs such as data identification, filtration, encryption and decryption and conversion of CPU31 (AT91M40800) control, caller memory 32 (EPROM27512), handle and gather the finger print data of coming.And compressedly obtain an effective internal checking data, by dynamic memory 33 (24C64) these valid data are sent in the comparing module again and handle.Be connected with program storage 32 (EPROM27512) simultaneously, at least one dynamic memory 33 (24C64) is with interface 34 and at least one external control interface 35 of fingerprint collecting head.
As shown in Figure 3, password comparison control circuit wants simple relatively, it just will be by keyboard interface under the control of CPU11 (AT89C51), the password that collection comes is compared at Cipher Processing memory 12 (24C64) and is determined user's legitimacy afterwards, wherein the back-up source interface is when the Fingerprint Lock power shortage, there is the user lock to be subjected to again by the mode of external power supply, thereby recover the various functions of lock, keyboard interface 15 is to adopt port among the CPU11 (AT89C51), by inquiry mode the data of user's input is carried out password and compares and control motor drive circuit 13.By the control of CPU11 (AT89C51), some function need be called, and as the registration of fingerprint and deletion etc., this moment, we adopted a circuit board interface 16 to finish.
As shown in Figure 4, the fingerprint comparison control circuit is main the realization by CPU21 (AT89C52) and memory 22 (24C256), under effect by the interface circuit 24 of finger print acquisition module, to gather and handle that original data compare accordingly in data and the memory 22 (24C256), draw the legitimacy of the next data of input, thereby whether control motor drive circuit 23 is worked and is reported to the police and whether export, simultaneously, in this interface circuit, we use CPU21 (AT89C52) remaining part function and have expanded networking interface 26, thereby lay the first stone for later network control.
During use, both can input the switch that password comes control lock by keyboard, also can come the switch of control lock by registered fingerprint, two autonomous systems can be distinguished the switch of CD-ROM drive motor with the control lock core, can have the advantage of coded lock and Fingerprint Lock thus concurrently, also can remedy the deficiency of this two classes lock each other.
According to the existence that increases or reduce personnel is arranged in actual life, by the instruction of keyboard input, we have increased function with deletion item by item and the function that increases separately in the function of Fingerprint Lock, and deletion and increase are same principles.When a certain fingerprint when not required, our Fingerprint Lock is just with its removal.Because we have just automatically added an ID sequence number for each fingerprint the consideration of this function when typing fingerprint in advance, when deletion, the ID sequence number is imported by keyboard and function corresponding key like this, at this moment to verify whether be that the caretaker is in operation, the operation of authentic administrator is very simple, as long as by comparison to fingerprint of administrator or password, the fingerprint comparison control circuit fingerprint that will mark sequence number accesses from fingerprint base then, thus deletion smoothly.As requiring to delete whole records, we are provided with a format key, trigger the comparison control module of Fingerprint Lock, will be stored in all data dumps in the memory 22 (24C256).
Leave warning output interface 25 in the fingerprint comparison control circuit, can increase continuous lamp, buzzer demonstration, when continuous several comparison is failed, Fingerprint Lock prompting at once or dormancy or warning.
The utility model can increase by 485 interfaces 26, can realize networking control.
Claims (5)
1, a kind of Fingerprint Lock, it comprises the lock body assembly that contains lock core, be used to control CD-ROM drive motor and the drive circuit thereof that lock core opens or closes action, it is characterized in that: the motor drive circuit of Fingerprint Lock links to each other with the fingerprint comparison control circuit with password comparison control circuit respectively, wherein password comparison circuit comprises a CPU (11), this CPU (11) connects a Cipher Processing memory (12), the control motor drive circuit, the ON/OFF of control drive motor lock core is moved, and also leaves the interface and the back-up source interface of keyboard interface and fingerprint comparison control circuit board on the CPU (11); The fingerprint comparison control circuit comprises a CPU (21), and the interface circuit and the fingerprint collecting head that connect a memory (22) and connect a fingerprint acquiring and identifying module on it are controlled a fingerprint comparison motor drive circuit, thus the ON/OFF of CD-ROM drive motor control lock core.
2, Fingerprint Lock according to claim 1, it is characterized in that: described fingerprint acquiring and identifying module mainly comprises a CPU (31), CPU (31) is connected with program storage (32) and at least one dynamic memory (33), and the interface of fingerprint collecting head (34) and at least one external control interface (35).
3, Fingerprint Lock according to claim 1 and 2 is characterized in that: the CPU in the fingerprint comparison control circuit (21) can also connect one 485 interfaces.
4, Fingerprint Lock according to claim 1 and 2 is characterized in that: leave warning output interface (25) in the fingerprint comparison control circuit.
5, Fingerprint Lock according to claim 4 is characterized in that: described warning output interface (25) connectable light or buzzer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03277362 CN2680802Y (en) | 2003-07-31 | 2003-07-31 | Fingerprint lock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03277362 CN2680802Y (en) | 2003-07-31 | 2003-07-31 | Fingerprint lock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2680802Y true CN2680802Y (en) | 2005-02-23 |
Family
ID=34598995
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03277362 Expired - Lifetime CN2680802Y (en) | 2003-07-31 | 2003-07-31 | Fingerprint lock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2680802Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103510760A (en) * | 2012-06-21 | 2014-01-15 | 闵瑜 | Intelligent lock system |
| CN104711817A (en) * | 2015-03-24 | 2015-06-17 | 济南大学 | Intelligent washing machine door cover safety system and method |
-
2003
- 2003-07-31 CN CN 03277362 patent/CN2680802Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103510760A (en) * | 2012-06-21 | 2014-01-15 | 闵瑜 | Intelligent lock system |
| CN104711817A (en) * | 2015-03-24 | 2015-06-17 | 济南大学 | Intelligent washing machine door cover safety system and method |
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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: 20130731 Granted publication date: 20050223 |