CN107832594A - A kind of virgin lock implementation method of inexpensive fingerprint - Google Patents
A kind of virgin lock implementation method of inexpensive fingerprint Download PDFInfo
- Publication number
- CN107832594A CN107832594A CN201710895008.2A CN201710895008A CN107832594A CN 107832594 A CN107832594 A CN 107832594A CN 201710895008 A CN201710895008 A CN 201710895008A CN 107832594 A CN107832594 A CN 107832594A
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- fingerprint
- ridge
- sensor apparatus
- children
- mcu
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/30—Authentication, i.e. establishing the identity or authorisation of security principals
- G06F21/31—User authentication
- G06F21/32—User authentication using biometric data, e.g. fingerprints, iris scans or voiceprints
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
- G06V40/12—Fingerprints or palmprints
- G06V40/13—Sensors therefor
- G06V40/1306—Sensors therefor non-optical, e.g. ultrasonic or capacitive sensing
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
- G06V40/12—Fingerprints or palmprints
- G06V40/1347—Preprocessing; Feature extraction
- G06V40/1359—Extracting features related to ridge properties; Determining the fingerprint type, e.g. whorl or loop
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- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Human Computer Interaction (AREA)
- Multimedia (AREA)
- Computer Security & Cryptography (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Computer Hardware Design (AREA)
- Software Systems (AREA)
- General Engineering & Computer Science (AREA)
- Lock And Its Accessories (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
The invention discloses a kind of virgin lock implementation method of inexpensive fingerprint, this method gathers finger print information first using the MCU of fingerprint sensor apparatus, then MCU processes the data that fingerprint sensor apparatus is sent, calculate the distance of paddy and ridge in fingerprint, whether it is adult or children further according to the Distance Judgment of paddy and ridge, so as to perform unblock or not unlock operation.This method does not have to reserved storage and compares the fingerprint of user, children or adult are directly judged by the spacing of the valley and a ridge of fingerprint, children or adult can be identified from the form of fingerprint, so as to avoid child completely or using equipment, avoid bringing unexpected injury to children.
Description
Technical field
The invention belongs to the intelligent control of the technical field of household electrical appliances, more particularly to household electrical appliances.
Background technology
The common equipment of the families such as disinfection cupboard, washing machine, electric kettle, electromagnetic oven and gas range is with certain danger
It is dangerous, children may be damaged.In order to avoid children's error starting or these equipment are used, are carried in some equipment
" child lock " function, i.e., once " child's lock " function enable, equipment can not start or can not open hatch door.For example, some brand electricity
" child's lock " and " water outlet " button are carried on the control panel of hot-water bottle, it is necessary to press " child's lock " key respectively to discharge functions of child lock,
" water outlet " button is pressed again just has meeting from pot mouth outflow.
But such " child's lock " function is to avoid the maloperation of children by the operation of two buttons, and it is unidentified
User is children or adult.Children still equally are possible to trigger security incident in a series of actions of operating table surface.
On the other hand, biological identification technology, particularly fingerprinting detection technique are widely used on mobile phone, are exempted
User frequently enters the cumbersome of password, and this trend advances development and the maturation of fingerprinting detection technique, also make it that user is ripe
Know and have received this use habit.
Patent CN104036174A《The method and its device of child lock are realized using fingerprint recognition》Propose a kind of fingerprint
The implementation method and device of child's lock.But its method has following 2 points of limitations：
(1) it is only used for the electronic installation with touch-screen.Because current most of appliances are without touch-screen,
So the method that patent CN104036174A is proposed can not be realized in most of household electrical appliances.
(2) whether the fingerprint that the device judges to operate limited users of the fingerprint of fingerprint recognition touch-screen with logging in matches,
If matching, record the time point of the operation；Count the usage time of the limited users；And preset if usage time exceedes
Usage time threshold values, then carry out child lock operation.The device need the fingerprint of pre-recorded limited users carry out again timing and
Time-limited operation.This technical characterstic may cannot get the cooperation of children, or release this limitation by the friend of the same age of children.Again
Secondary, time-limited operation is helpless to protect mainly for avoiding children from indulging in the electronic equipment that mobile phone, flat board etc. carry amusement function
Unexpected injury of the children from household electrical appliances.
Patent publication CN106327616A proposes a kind of electric oven for carrying out fingerprint recognition intelligently virgin locking device,
The device is the virgin lock implementation method for electric oven.The device includes：Touch sensitive key, human-computer interaction interface module, LCD show
The parts such as display screen.But there is some following limitation in this method：
(1) device is only used for the household electrical appliances of this single category of electric oven.
(2) because current most of appliances are without touch-screen, so what patent CN106327616A was proposed
Method can not be realized in most of household electrical appliances.
(3) need to prestore fingerprint using the user of the electric oven.If increase adult user refers to, it is necessary to store again
Line, it is comparatively laborious using process.
(4) this is the thinking based on storage and comparison fingerprint, and storing and compare fingerprint needs higher hardware resource, institute
It is higher with hardware cost.
Because the capacitance information of " paddy " and " ridge " of fingerprint detected by fingerprint sensor must be transferred to CPU and do
Data processing and identification, and CPU processing speed and cost are generally proportional, the high CPU prices of processing speed are also higher.
If CPU processing speed is too low, then the time for handling finger print data will be longer, causes poor customer experience.There is number
According to showing, under conditions of CPU speed is 100MHz, the processing time of finger print data, this time was about in 0.5S or so
Through the limit time close to preferable Consumer's Experience.So, i.e., using the arm m3 of advantage of lower cost as master cpu, its into
This is still higher.
The content of the invention
Based on this, therefore the primary mesh of the present invention be to provide a kind of virgin lock implementation method of inexpensive fingerprint, this method
Without reserved storage and the fingerprint of comparison user, children or adult are directly judged by the spacing of the valley and a ridge of fingerprint,
Children or adult can be identified from the form of fingerprint, so as to avoid child completely or using equipment, reach protection children and exempt from
The unexpected injury brought by household equipment (including household electrical appliances).
To achieve the above object, the technical scheme is that：
A kind of virgin lock implementation method of inexpensive fingerprint, it is characterised in that this method is first using the MCU of fingerprint sensor apparatus
Finger print information is first gathered, then MCU processes the data that fingerprint sensor apparatus is sent, and calculates the distance of paddy and ridge in fingerprint,
Whether it is adult or children further according to the Distance Judgment of paddy and ridge, so as to perform unblock or not unlock operation.
Specifically, realize that step is：
101st, detected whether that fingerprint triggers fingerprint sensor apparatus, specifically, fingerprint sensor apparatus has detected whether finger
Line touching produces；
102nd, the touch key-press of fingerprint sensor apparatus is triggered；Finger touches touch key-press, exports MCU interrupt signal and refers to
Line data；
103rd, the MCU of fingerprint sensor apparatus wakes up, and handles finger print data；
104th, the distance of the valley and a ridge of fingerprint is judged；
If it is determined that the valley and a ridge of fingerprint is distant, fingerprint is from adult；If it is determined that the valley and a ridge of fingerprint
Closer to the distance, then fingerprint derives from children；
105th, operation is performed；If fingerprint derives from children, not unlock, if fingerprint is carried out from adult
Unblock.
Further, for the distance of valley and a ridge, mainly judged by threshold values, by the distance of valley and a ridge with presetting
Threshold value compare, in the case, concrete implementation step is：
201st, fingerprint sensor apparatus has detected fingerprint touching；
202nd, fingerprint sensor apparatus exports interrupt signal and finger print data to MCU；
203rd, MCU compares：The distance of the valley and a ridge of fingerprint is more than threshold values set in advance
204th, if less than threshold values, then fingerprint, which derives from, is grown up, and unlocks and starts shooting；
205th, if greater than threshold values, then fingerprint derives from children, keeps locking.
Threshold values can be preset, and can also be set by user according to concrete condition.Threshold value set in advance according to
A large amount of sample data statistical results detected in advance are configured.
Differentiation of the present invention for fingerprint, without reserved storage and compare the fingerprint of user, directly by the paddy of fingerprint and
The spacing of ridge judges children or adult, children or adult can be identified from the form of fingerprint, so as to avoid children completely
Open or using equipment, reach the purpose for the unexpected injury for protecting children to be brought from household equipment (including household electrical appliances).
Brief description of the drawings
Fig. 1 is capacitance type fingerprint detection technique schematic diagram.
Fig. 2 is the software control flow chart that the present invention is implemented.
Fig. 3 is the identification decision flow chart for the fingerprint that the present invention is implemented.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
Shown in Fig. 1, it is well known that capacitance type fingerprint detection technique can be by detecting on fingerprint between " paddy " and " ridge "
Electric capacity obtains finger print information.Specifically, the capacitance between the valley and a ridge by detecting fingerprint, the line of fingerprint can be quantified
Road information, this is the general principle of capacitance type fingerprint detection technique.In figure, " 12 " represent finger superficial skin；" 14 " fingerprint is examined
The surface of measurement equipment；" 16 " represent the ridge of fingerprint；" 18 " represent the paddy of fingerprint.
Due to the difference of palm, finger size, the fingerprint lines of children is more close and careful compared with being grown up, that is, paddy with
Capacitance between ridge is larger.By detecting this capacitance and being compared with threshold value, it is possible to determine that fingerprint comes from children also
It is adult.This is the Cleaning Principle of present device.
Thus, as shown in Fig. 2 the decision method that the present invention is realized is：MCU gathers finger print information first, and then MCU will
The data that fingerprint sensor apparatus is sent process, and calculate the distance of paddy and ridge in fingerprint, then be according to the Distance Judgment of paddy and ridge
No is adult or children.
Specifically, realize that step is：
101st, detected whether that fingerprint triggers fingerprint sensor apparatus, specifically, fingerprint sensor apparatus has detected whether finger
Line touching produces；
102nd, the touch key-press of fingerprint sensor apparatus is triggered；Finger touches touch key-press, exports MCU interrupt signal and refers to
Line data；
103rd, the MCU of fingerprint sensor apparatus wakes up, and handles finger print data；
104th, the distance of the valley and a ridge of fingerprint is judged；
If it is determined that the valley and a ridge of fingerprint is distant, fingerprint is from adult；If it is determined that the valley and a ridge of fingerprint
Closer to the distance, then fingerprint derives from children；
105th, operation is performed；If fingerprint derives from children, not unlock, if fingerprint is carried out from adult
Unblock.
With reference to shown in Fig. 3, for the distance of valley and a ridge, mainly judged by threshold values, by the distance of valley and a ridge and in advance
The threshold value first set compares, and in the case, concrete implementation step is：
201st, fingerprint sensor apparatus has detected fingerprint touching；
202nd, fingerprint sensor apparatus exports interrupt signal and finger print data to MCU；
203rd, MCU compares：The distance of the valley and a ridge of fingerprint is more than threshold values set in advance
204th, if less than threshold values, then fingerprint, which derives from, is grown up, and unlocks and starts shooting；
205th, if greater than threshold values, then fingerprint derives from children, keeps locking.
Threshold values can be preset, and can also be set by user according to concrete condition.Threshold value set in advance according to
A large amount of sample data statistical results detected in advance are configured.
Therefore, differentiation of the present invention for fingerprint, without reserved storage and the fingerprint of comparison user, fingerprint is directly passed through
The spacing of valley and a ridge judges children or adult, children or adult can be identified from the form of fingerprint, so as to avoid completely
Child or using equipment, reaches the purpose for the unexpected injury for protecting children to be brought from household equipment (including household electrical appliances).
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
All any modification, equivalent and improvement made within refreshing and principle etc., should be included in the scope of the protection.
Claims (4)
1. a kind of virgin lock implementation method of inexpensive fingerprint, it is characterised in that this method uses the MCU of fingerprint sensor apparatus first
Finger print information is gathered, then MCU processes the data that fingerprint sensor apparatus is sent, and calculates the distance of paddy and ridge in fingerprint, then
Whether it is adult or children according to the Distance Judgment of paddy and ridge, so as to perform unblock or not unlock operation.
2. the virgin lock implementation method of the fingerprint of low cost as claimed in claim 1, it is characterised in that the step of realizing of this method is：
101st, detected whether that fingerprint triggers fingerprint sensor apparatus, specifically, fingerprint sensor apparatus has detected whether that fingerprint touches
Touch generation；
102nd, the touch key-press of fingerprint sensor apparatus is triggered；Finger touches touch key-press, exports MCU interrupt signal and fingerprint number
According to；
103rd, the MCU of fingerprint sensor apparatus wakes up, and handles finger print data；
104th, the distance of the valley and a ridge of fingerprint is judged；
105th, operation is performed；If fingerprint derives from children, not unlock, if fingerprint is unlocked from adult.
3. the virgin lock implementation method of the fingerprint of low cost as claimed in claim 2, it is characterised in that in step 104, for paddy and
The distance of ridge, is mainly judged by threshold values, and the distance of valley and a ridge and threshold value set in advance are compared.
4. the virgin lock implementation method of the fingerprint of low cost as claimed in claim 3, it is characterised in that in the case, specific real
Now step is：
201st, fingerprint sensor apparatus has detected fingerprint touching；
202nd, fingerprint sensor apparatus exports interrupt signal and finger print data to MCU；
203rd, MCU compares：The distance of the valley and a ridge of fingerprint is more than threshold values set in advance
204th, if less than threshold values, then fingerprint, which derives from, is grown up, and unlocks and starts shooting；
205th, if greater than threshold values, then fingerprint derives from children, keeps locking.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710895008.2A CN107832594A (en) | 2017-09-28 | 2017-09-28 | A kind of virgin lock implementation method of inexpensive fingerprint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710895008.2A CN107832594A (en) | 2017-09-28 | 2017-09-28 | A kind of virgin lock implementation method of inexpensive fingerprint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107832594A true CN107832594A (en) | 2018-03-23 |
Family
ID=61643733
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710895008.2A Pending CN107832594A (en) | 2017-09-28 | 2017-09-28 | A kind of virgin lock implementation method of inexpensive fingerprint |
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| Country | Link |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109711259A (en) * | 2018-11-27 | 2019-05-03 | Oppo广东移动通信有限公司 | Fingerprint input method and relevant device |
| CN110851811A (en) * | 2019-11-15 | 2020-02-28 | 美的集团股份有限公司 | Method and device for preventing misoperation of equipment |
| CN110909332A (en) * | 2019-11-15 | 2020-03-24 | 美的集团股份有限公司 | Method and device for preventing misoperation of equipment |
| CN111397267A (en) * | 2018-12-28 | 2020-07-10 | 青岛海尔智能技术研发有限公司 | Refrigerator with lock for children |
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| US20070098235A1 (en) * | 2005-09-29 | 2007-05-03 | Uriel Halavee | Age Verification |
| US20130133428A1 (en) * | 2011-11-30 | 2013-05-30 | Samsung Electro-Mechanics Co., Ltd. | Fingerprint detection sensor and method of manufacturing the same |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109711259A (en) * | 2018-11-27 | 2019-05-03 | Oppo广东移动通信有限公司 | Fingerprint input method and relevant device |
| CN111397267A (en) * | 2018-12-28 | 2020-07-10 | 青岛海尔智能技术研发有限公司 | Refrigerator with lock for children |
| CN110851811A (en) * | 2019-11-15 | 2020-02-28 | 美的集团股份有限公司 | Method and device for preventing misoperation of equipment |
| CN110909332A (en) * | 2019-11-15 | 2020-03-24 | 美的集团股份有限公司 | Method and device for preventing misoperation of equipment |
| CN110851811B (en) * | 2019-11-15 | 2022-02-15 | 美的集团股份有限公司 | Method and device for preventing misoperation of equipment |
| CN110909332B (en) * | 2019-11-15 | 2022-03-04 | 美的集团股份有限公司 | Method and device for preventing misoperation of equipment |
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Application publication date: 20180323 |