CN201635528U - Fingerprint lock - Google Patents
Fingerprint lock Download PDFInfo
- Publication number
- CN201635528U CN201635528U CN2010201375628U CN201020137562U CN201635528U CN 201635528 U CN201635528 U CN 201635528U CN 2010201375628 U CN2010201375628 U CN 2010201375628U CN 201020137562 U CN201020137562 U CN 201020137562U CN 201635528 U CN201635528 U CN 201635528U
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- fingerprint
- dsp
- control system
- mcu
- lock
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Abstract
The utility model provides a fingerprint lock, which comprises a fingerprint acquisition device for acquiring fingerprint information, a data processor for carrying out digital processing on the fingerprint information and a peripheral circuit which are connected with the fingerprint acquisition device, a control system for controlling the fingerprint acquisition device and the data processor, a lock body driving mechanism and a power supply system, wherein the fingerprint acquisition device comprises a fingerprint sensor and a gray scale digital image transformation and combination device; the fingerprint sensor is a 360-degree fingerprint sensor, a fingerprint feature base is arranged in a DSP (Digital Signal Processor), and the fingerprint feature base is a 360-degree fingerprint feature point. Due to the fact that the 360-degree fingerprint acquisition device and the corresponding fingerprint feature base are adopted in the utility model, the fingerprint acquisition becomes simple and effective.
Description
Technical field
The utility model relates to the field that utilizes individual fingerprint to carry out identification in the security fields, particularly a kind of intelligent electronic lock, and this electronic lock is closed by the fingerprint identification device control lock.
Background technology
Fingerprint Lock be a kind of be the intelligent lock of identification carrier and means with the somatic fingerprint, it is the perfect crystallization of computer information technology, electronic technology, mechanical technique and modern five metals technology.Fingerprint Lock generally is made up of electronic recognition and control, mechanical linkage system two parts.The uniqueness of fingerprint and non-reproduction have determined that Fingerprint Lock is a safest lock kind in present all locksets.
Fingerprint is meant the lines of the recessed injustice of the positive surface skin epirelief of finger tips, although fingerprint is the sub-fraction of human body skin, but, it contains a large amount of information, these lines are at pattern, have nothing in common with each other on breakpoint and the intersection point, in information processing, they are called " feature ", medically verified these features all are different for each finger, and these features have uniqueness and permanent, therefore we just can be mapped a people with his fingerprint, by fingerprint characteristic that compares him and the fingerprint characteristic of preserving in advance, just can verify his true identity.Therefore, the above-mentioned characteristic of fingerprint becomes the most important evidence of identification identity and is widely used in police criminal detection and judicial domain.Finger print identifying has easily and fast, accurate characteristics.Fingerprint Lock is the door lock of realizing by fingerprint authentication.Need not to be with key, need not band card or memory complicated passwords, only need brush finger line switch door lock.
As shown in Figure 1, the hardware configuration of the door-locking system of fingerprint recognition mainly comprises: fingerprint sensor, DSP, MCU, electric supply system and electric control lock drive and and lock body etc., wherein the core is DSP, the fingerprint control processor unit as the fingerprint signal processing unit, fingerprint signal processing unit and fingerprint control processor unit are referred to as control system, generally be integrated on the pcb board, its core component is a processor, generally is a kind of microprocessor MCU and a digital signal processor DSP.Its course of work is as follows: after fingerprint sensor collects finger print information, carry out communication by serial ports and DSP under the control of MCU, finish typing, deletion, identity validation to fingerprint, can carry out the action of switch door by checking rear motor control door lock.
Fingerprint Lock on the market is when carrying out fingerprint authentication now, fingerprint sensor is when collecting fingerprint, need gather the specific position of fingerprint, generally have only the position of 90 degree to gather, if when gathering fingerprint, the fingerprint rotation overruns and just can not correctly gather, and needs brush finger line again, if brush possibly repeatedly when the user is unskilled sometimes, make troubles to use.
Summary of the invention
For Fingerprint Lock in the solution prior art can only be gathered 90 positions of spending of fingerprint, if when gathering fingerprint, the fingerprint rotation overruns and just can not correctly gather, need brush finger line again, if brush possibly repeatedly when the user is unskilled sometimes, to the deficiency that use is made troubles, the utility model provides a kind of Fingerprint Lock of 360 degree authentication functions.
The utility model in order to realize the technical scheme that its technical purpose adopts is: a kind of Fingerprint Lock comprises the fingerprint sensor that obtains finger print information, is connected control system, lock body driving mechanism that finger print information is carried out the DSP of digital processing, described fingerprint sensor and DSP are controlled with described fingerprint sensor; Described fingerprint sensor is 360 degree fingerprint sensors, is provided with the fingerprint characteristic storehouse among the described DSP, and described fingerprint characteristic storehouse is 360 degree fingerprint feature points.
Further, in the above-mentioned Fingerprint Lock: described fingerprint sensor is connected by less radio-frequency with described control system with described DSP.The device of described less radio-frequency is the infrared radio device.Described radio frequency communication devices comprises encoder and the transmitter unit that is arranged on described fingerprint sensor and described DSP end, is arranged on the receiving element of described control system end.Between described encoder and transmitter unit, be provided with encryption device, between described receiving element and control system, be provided with decoding device.
Further, in the above-mentioned Fingerprint Lock: comprise MCU and keyboard in the described control system, described MCU is connected with the circuit of described keyboard by shift register.
The utility model becomes simply and effectively fingerprint collecting owing to adopt 360 degree degree fingerprint acquisition devices and corresponding fingerprint characteristic storehouse.
Below in conjunction with the drawings and specific embodiments the utility model is done comparatively detailed description.
Description of drawings
Fig. 1 is the utility model embodiment 1 product theory diagram.
Fig. 2 is the utility model embodiment 1 keyboard circuit schematic diagram.
Fig. 3 is the utility model embodiment 2 product theory diagrams.
Fig. 4 is the utility model embodiment 3 product theory diagrams.
The specific embodiment
Present embodiment is an intelligent electronic lock, it comprises by DSP part and control system part, the DSP circuit part is made up of dsp chip and peripheral circuit thereof and fingerprint image acquisition sensor and circuit peripheral circuit thereof are formed, DSP receives the fingerprint image data of handling from fingerprint sensor, carries out fingerprint feature point and extracts, and generates fingerprint template, registration, comparison, deletion such as empties at operation.
Fingerprint comparison and search: when DSP receives the comparison order that the MCU in the control system sends, DSP begins to collect the fingerprint image data that fingerprint sensor is gathered, when the user presses fingerprint on fingerprint sensor, fingerprint sensor is gathered fingerprint image and is changed into gray-scale image and merge the generation complete image from original analog, and send image to DSP, after DSP obtains image, image is strengthened, cutting, binaryzations etc. strengthen operation in earlier stage, and in DSP, finish, fingerprint feature point extracts, and generates template, in fingerprint base, search for 360 degree fingerprint feature points couplings during comparison in 1: 1, to the fingerprint that finds coupling, or searched for all fingerprints, the result has been returned to the MCU of control system.In 1: 1 when comparison, the user number parameter that sends according to the MCU of control system is carried out 360 degree fingerprint feature points couplings with the fingerprint template of respective user number, the result is returned to the MCU of control system.
The fingerprint registration: DSP receives the MCU fingerprint registration command of control system, activate the fingerprint collecting process twice, after finishing twice fingerprint collecting, if gather successfully, with two fingerprint templates that generate, final synthetic complete template merges successfully, with template stores to the position of memory correspondence.At last the result is returned to the MCU of control system.
Fingerprint deletion: DSP receives the MCU fingerprint delete command of control system, the user number that DSP sends according to the MCU of control system, the fingerprint template data of reference numeral on the deletion memory.After finishing the information of success or not is returned to the MCU of control system.
Fingerprint empties: DSP receives that the MCU fingerprint of control system empties order, the fingerprint template data of all numberings on the DSP deletion memory, and will be initialized to dummy status on the memory.After finishing the information of success or not is returned to the MCU of control system.
The control system circuit part by, encoder and peripheral circuit thereof, keyboard, LED light, buzzer, charactron, motor-drive circuit etc.The part of control system is finished cryptographic function, fingerprint function, management function.
Keyboard portion comprises key circuit, can adopt the mechanical compression formula with the Dome sheet mode to realize, also can adopt capacitance key to realize.Because the I/O of MCU is limited, realize 12 keypress functions, its matrix form key circuit is infeasible, so has adopted the shift register mode to adopt the signal transmission form of 74LS164 to communicate by letter with MCU in the present embodiment, and as shown in Figure 2, the course of work is as follows:
Give the KB_DATA high level, serve 8 pulse signals to KB_CLK again, Q0-Q7 is high level state so.
Give the KB_DATA low level, then to pulse signal of KB_CLK, then Q0 is a low level, and Q1-Q7 is a high level; Read KB_DET0 this moment, if low level shows that then J1 is pressed, if high level is then represented not action of J1.In like manner, read the state of KB_DET1, can judge the state of J7.
Give the KB_DATA high level, give pulse signal of KB_CLK then, then Q0 is high, and Q1 is low, and Q2-Q7 is high, can judge J2﹠amp; The state of J8
After this only need each pulse signal of KB_CLK of giving, just can judge other buttons successively.
No matter be bluetooth wireless devices or infrared facility, this device comprises the encoder that is arranged on fingerprint sensor and DSP end basically as the content of Fig. 3 dotted line, is arranged on the radio receiving unit that the control system end is connected with MCU, wherein, encoder has remote keypad and transmitter unit.Also decoder can be set separately at receiving terminal, receive signal, and decode from remote controller.In the present embodiment, for fear of the remote control Fingerprint Lock in use,, remote signal is encrypted in order to guarantee safety.Between encoder and transmitter unit, be provided with encryption device, between described receiving element and control system MCU, be provided with decoding device.Adopt the KEELOG encryption method that signal is encrypted at the remote-control transmitting end, adopt the deciphering of KEELOG decryption method at receiving terminal.
Embodiment 3, and as shown in Figure 4, present embodiment is a kind of Fingerprint Lock that has remote control fingerprint and local fingerprint sensor simultaneously, are the remote control Fingerprint Lock shown in the embodiment 2 in the solid box among the figure, and dotted line partly is illustrated in the part that the Fingerprint Lock switch is carried out in this locality.
Claims (6)
1. Fingerprint Lock comprises the fingerprint sensor that obtains finger print information, is connected control system MCU, the keyboard that is connected with described MCU and lock body driving mechanism thereof that finger print information is carried out the DSP of digital processing, communicates with described DSP with described fingerprint sensor; It is characterized in that: described fingerprint sensor is 360 degree fingerprint sensors, is provided with the fingerprint characteristic storehouse among the described DSP, and described fingerprint characteristic storehouse is 360 degree fingerprint feature points.
2. Fingerprint Lock according to claim 1 is characterized in that: described fingerprint sensor is connected by radio frequency communication devices with described control system with described DSP.
3. Fingerprint Lock according to claim 2 is characterized in that: described radio frequency communication devices is the infrared radio device.
4. Fingerprint Lock according to claim 2 is characterized in that: described radio frequency communication devices comprises encoder and the transmitter unit that is arranged on described fingerprint sensor and described DSP end, is arranged on the receiving element of described control system end.
5. Fingerprint Lock according to claim 4 is characterized in that: be provided with encryption device between described encoder and transmitter unit, be provided with decoding device between described receiving element and control system MCU.
6. according to arbitrary described Fingerprint Lock in the claim 1 to 5, it is characterized in that: comprise MCU and keyboard in the described control system, described MCU is connected with the circuit of described keyboard by shift register.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201375628U CN201635528U (en) | 2010-03-19 | 2010-03-19 | Fingerprint lock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201375628U CN201635528U (en) | 2010-03-19 | 2010-03-19 | Fingerprint lock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201635528U true CN201635528U (en) | 2010-11-17 |
Family
ID=43080017
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201375628U Expired - Lifetime CN201635528U (en) | 2010-03-19 | 2010-03-19 | Fingerprint lock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201635528U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102808550A (en) * | 2011-06-02 | 2012-12-05 | 姚海平 | Control system of fingerprint locks |
| CN103510760A (en) * | 2012-06-21 | 2014-01-15 | 闵瑜 | Intelligent lock system |
-
2010
- 2010-03-19 CN CN2010201375628U patent/CN201635528U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102808550A (en) * | 2011-06-02 | 2012-12-05 | 姚海平 | Control system of fingerprint locks |
| CN103510760A (en) * | 2012-06-21 | 2014-01-15 | 闵瑜 | Intelligent lock system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: SHENZHEN BIOCOME SECURITY TECHNOLOGY CO., LTD. Free format text: FORMER NAME: SHENZHEN BIOCOME BIOMETRIC TECHNOLOGY CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 518000 Guangdong city of Shenzhen province Futian District sunleads lotus road building 7B Patentee after: Shenzhen Biocome Safety Technology Co.,Ltd. Address before: 518000 Guangdong city of Shenzhen Province in the 7 storey building Lotus Road in Futian District Patentee before: Shenzhen Biocome Biological Recognition Technology Co., Ltd. Address after: 518000 Guangdong city of Shenzhen province Futian District sunleads lotus road building 7B Patentee after: Shenzhen Biocome Safety Technology Co.,Ltd. Address before: 518000 Guangdong city of Shenzhen Province in the 7 storey building Lotus Road in Futian District Patentee before: Shenzhen Biocome Biological Recognition Technology Co., Ltd. |
|
| DD01 | Delivery of document by public notice |
Addressee: Tang Peixuan Document name: Notification that Application Deemed not to be Proposed Addressee: Tang Peixuan Document name: Notification that Application Deemed not to be Proposed |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101117 |
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| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: SHENZHEN BIOCOME SAFETY TECHNOLOGY Co.,Ltd. Document name: Notification of Expiration of Patent Right Duration |