CN107749109A - A kind of child lock control method using fingerprint recognition - Google Patents
A kind of child lock control method using fingerprint recognition Download PDFInfo
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- CN107749109A CN107749109A CN201711200153.0A CN201711200153A CN107749109A CN 107749109 A CN107749109 A CN 107749109A CN 201711200153 A CN201711200153 A CN 201711200153A CN 107749109 A CN107749109 A CN 107749109A
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- Prior art keywords
- fingerprint
- characteristic
- child lock
- control method
- fingerprint characteristic
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C9/00—Individual registration on entry or exit
- G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
- G07C9/00563—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys using personal physical data of the operator, e.g. finger prints, retinal images, voicepatterns
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- General Physics & Mathematics (AREA)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
- Collating Specific Patterns (AREA)
Abstract
The invention discloses a kind of child lock control method using fingerprint recognition, it is characterised in that including step：S1. the fingerprint input of user is gathered, obtains fingerprint image to be identified；S2. the fingerprint characteristic of the fingerprint image is obtained；S3. judge whether the fingerprint characteristic meets the condition of mankind's fingerprint characteristic：If fingerprint characteristic meets the condition of mankind's fingerprint characteristic, step S4 is performed；S4. judge whether the fingerprint lines spacing in the fingerprint characteristic is more than preset numerical value；If the fingerprint lines spacing is more than the preset numerical value, judge that the fingerprint characteristic for fingerprint characteristic of being grown up, closes functions of child lock.The present invention does not need typing fingerprint to be stored in fingerprint base, and it is adult or children that can quickly and reliably determine user, can effectively solve the problems, such as children and other object maloperations.
Description
Technical field
The present invention relates to technical field of biometric identification, more particularly to a kind of virgin lock control side using fingerprint recognition
Method.
Background technology
Fingerprint identification technology is to read fingerprint image by imaging equipment, is then taken the fingerprint with computer identification software
Characteristic, result is identified finally by match cognization algorithm, to determine the living things feature recognition of fingerprint owner's identity
Technology.Fingerprint identification technology relates generally to fingerprint image acquisition, fingerprint image processing, feature extraction, data preserve, characteristic value
Compare with the process such as matching.Fingerprint identification technology is the biometrics identification technology being most widely used now, compared to sound
Other biological identification technology, the modes of fingerprint recognition such as ripple identification, iris recognition, recognition of face, retina identification have technology
Mature and reliable, algorithm simply easily realize, using cost of implementation it is low the advantages of.The technology is mainly used in criminal investigation system in the past, and
Have benefited from the fast development of modern electronic technology in recent years, and have begun to enter into our daily life.
With the continuous improvement of people's living standards, the species of in the market household electrical appliance is also more and more.These household electrics
Device largely facilitates daily life, but when misoperation, such as during by children's maloperation, does not simply fail to
Original function is realized, and accident injury children often occur, or even triggers fire, potential safety hazard is brought, to family and society
Misfortune can be brought.For example, the electrical equipment such as child resistant electric kettle, micro-wave oven, disinfection cabinet, is easy for scald accident.Even TV,
Computer, the time that children see is excessive, plays long, also can affect one's power of vision and learn.In order to avoid children's maloperation, ensure children
Safety, many household electrical appliance be provided with it is virgin lock, for example children are inoperable when the virgin lock of micro-wave oven works, but release virgin lock
Method it is simple, children easily learn, and cut off virgin lock event resolves after electricity, and protection children are halfway；The child of television set
Lock can not solve children's Self-operating, see the problem of TV is excessive；The usersmanaging passwords of computer, clever child can not be stopped
Son enters operating system using safe mode.Therefore it provides a kind of child lock control method using fingerprint recognition, which turns into, avoids child
Operation household electrical appliances bring many troublesome real needs to son without authorization.
But be present the problem of certain in existing fingerprint recognition, be mainly manifested in：（1）Typing fingerprint it must be stored in advance
The fingerprint collected is compared with the fingerprint in fingerprint base one by one again in fingerprint base, during fingerprint recognition, due to using traveling through
The mode of whole fingerprint base compares, and recognition efficiency is low；（2）Because fingerprint image noise and scar disturb, fingerprint characteristic is failed to understand
It is aobvious, it is difficult to therefrom extract minutiae point accurately and securely；On the other hand, gone using the similarity of minutiae point partial structurtes information
Find registration and refer to minutiae point pair, due to being local message, be fully present unmatched with reference to minutiae point pair, their local knot
Structure information similarity is very high, thus mistakenly can carry out registration to minutiae point using this, cause the matching of terminal error to sentence
Disconnected, accuracy of identification is relatively low；（3）Fingerprint identification module is pressed by other objects beyond finger and causes maloperation, such as user
It is probably accidentally with the fingerprint identification module containing textured article contacts to child's lock, or the nothing such as pet dog, pet cat
Meaning touches the fingerprint identification module of virgin lock, and now virgin lock still can carry out fingerprint recognition operation, and now user is actually
Virgin lock is not needed to carry out fingerprint recognition operation, and child is locked after carrying out fingerprint recognition operation, can just draw the fingerprint image
As the result of recognition failures.This undoubtedly reduces the efficiency of virgin lock fingerprint recognition.
Therefore, prior art has yet to be improved and developed.
The content of the invention
The defects of in order to make up prior art, the present invention provide a kind of child lock control method using fingerprint recognition.
The technical problems to be solved by the invention are achieved by the following technical programs：
A kind of child lock control method using fingerprint recognition, it is characterised in that including step：
S1. the fingerprint input of user is gathered, obtains fingerprint image to be identified；
S2. the fingerprint characteristic of the fingerprint image is obtained；
S3. judge whether the fingerprint characteristic meets the condition of mankind's fingerprint characteristic：If the fingerprint characteristic meets mankind's fingerprint
The condition of feature, then perform step S4；
S4. judge whether active user is children：It is preset to judge whether the fingerprint lines spacing in the fingerprint characteristic is more than
Numerical value；If the fingerprint lines spacing is more than the preset numerical value, judge that the fingerprint characteristic for fingerprint characteristic of being grown up, closes
Close functions of child lock.
Further, it is described to judge that the step of whether fingerprint characteristic meets the condition of mankind's fingerprint characteristic includes：Sentence
It is disconnected to whether there is Finger print corresponding with the fingerprint characteristic, wherein, Finger print includes bucket type fingerprint, arcuate fingerprint and winnowed with a dustpan
Dustpan type fingerprint.
Further, if the fingerprint characteristic is unsatisfactory for the condition of mankind's fingerprint characteristic, judge that the fingerprint image is
Foreign matter image, user is prompted to perform step S1.
Further, the preset numerical value be more than target children's fingerprint lines average headway higher limit, and less than into
The lower limit of people's fingerprint lines average headway.
Further, if the fingerprint lines spacing in fingerprint characteristic is not more than preset numerical value, user is prompted to perform step
Rapid S1.
Further, judged result is exported by voice and/or text importing mode in step S4.
Further, after closing functions of child lock failure using fingerprint recognition, unlocked by non-unlocked by fingerprint mode.
The present invention has the advantages that：
After the present invention obtains the fingerprint characteristic of fingerprint image, first determine whether the fingerprint characteristic meets mankind's fingerprint characteristic
Condition, then judge whether the fingerprint lines spacing in the fingerprint characteristic is more than preset numerical value, the present invention does not need typing to refer to
Line is stored in fingerprint base, can quickly and reliably determine that user is adult or children, determines whether to close Tong Suogong
Can, can effectively solve the problems, such as children and other object maloperations.
The inventive method is simple, cost is low, can apply on all kinds of household electrical appliance.
Embodiment
With reference to embodiment, the present invention will be described in detail, and embodiment is only the preferred embodiment of the present invention,
It is not limitation of the invention.
A kind of child lock control method using fingerprint recognition, it is characterised in that including step：
S1. the fingerprint input of user is gathered, obtains fingerprint image to be identified.
The fingerprint image to be identified can be the finger print information of user, can be user's palm because of false touch and caused by
Palmprint information, can be user other skin parts false touch and caused lines information or pet cat, pet dog etc.
False touch and caused lines information.
The method that the present invention inputs to the fingerprint for gathering user is not particularly limited, as long as realizing the fingerprint for collecting user
Image.As an example, the fingerprint image for the fingerprint capturer collection user for including optical camera, wherein institute can be used
It is CCD camera to state optical camera；The fingerprint image of user can also be gathered by sensor, wherein, mentioned sensor
Including but not limited to optical fingerprint sensor and semiconductor fingerprint sensor, more preferably gathered and used using semiconductor fingerprint sensor
The fingerprint image at family, the image-forming principle of semiconductor fingerprint sensor and the difference of optical fingerprint sensor, it is that profit press...withes one's finger
When being pressed in semiconductor devices, piece image is formed according to many individual sensing units for being distributed in TIP, so can be effective
Avoid fingerprint residues and false fingerprint, strengthen the security used.
S2. fingerprint image is pre-processed, obtains the fingerprint characteristic of the fingerprint image.
Also include pre-processing fingerprint image in step S2 in the present invention.Gather fingerprint image when, usually by
In noise caused by finger（It is in rotary moving, pressure is uneven, dry and wet degree, has a superficial wound, is stained with dirt）And fingerprint capturer
Caused noise（Electronic noise and left fingerprints above it, sweat stain）Contain in various degree Deng can all cause the fingerprint of collection
Noise, such as it is smudgy, containing left fingerprints etc., if directly taken the fingerprint from the fingerprint image containing much noise
Feature, it will produce substantial amounts of pseudo-random numbers generation.Pretreatment is to be processed into the low quality of collection, noisy fingerprint source images
Clearly image is refined, successfully pretreatment can reduce influence of the low-quality image to recognition result, be wrapped in pretreatment
Denoising, image enhaucament, image binaryzation and image thinning processing are included.
Fingerprint characteristic is to characterize the essential attribute that the fingerprint is different from other fingerprints.In the prior art, fingerprint characteristic is total
Body characteristicses and local feature, general characteristic include Finger print；Local feature generally refers to the node on fingerprint, main extraction section
The type of point（End points or bifurcation）, the direction of node and the position of node；After these information are extracted, pass through
Algorithm for recognizing fingerprint obtains characteristic value.Because fingerprint image noise and scar disturb, fingerprint characteristic unobvious, it is difficult to therefrom carry
Get node accurately and securely.And in the present invention, obtaining the fingerprint characteristic of the fingerprint image includes Finger print and fingerprint
Lines spacing, fingerprint image processing time is short, Finger print characteristic abstract is simple, and reliability and stability are high.
Mankind's Finger print is divided into three kinds, is bucket type fingerprint, arcuate fingerprint and dustpan shaped fingerprint respectively.Arcuate fingerprint is hand
Refer to one of composite type of mastoid process streakline, refer to that periphery and foundation two systems are formed, without the decorative pattern of built-in system.Arcuate
Fingerprint forms periphery and foundation two systems by arcuate line, straight line, wave, does not form the pattern type of delta of the fingerprint.Bow
The rate of being in danger of type fingerprint is low, accounts for the 2.5% of finger decorative pattern sum, according to its form difference, is divided into plain arch and tented arch again
Two kinds.Opening is with outside dustpan shaped fingerprint, the lines such as high mountain and great rivers, being typically open towards the small finger direction of the same hand is
Ulnar loop line, on the contrary it is radial loop line.Bucket type fingerprint and dustpan shaped fingerprint on the contrary, the generally fingerprint of circular ring-type, usually it is N number of with one heart
Circle composition, also there is twin-bucket line, the classification of spiral lamination, in a word, the periphery ring of fingerprint is closure, typically ranges bucket type fingerprint.
In fingerprint image, periodically alternately, the cycle of fingerprint is exactly fingerprint lines spacing, and it is fingerprint for crestal line and valley line
Key character.
Children are due to age correlations, and finger print lines spacing is smaller, and the fingerprint lines spacing being grown up is larger.The present invention
Using the size of fingerprint lines spacing, children and adult are relatively easily distinguished, so as to limit the maloperation of underage child.
S3. judge whether the fingerprint characteristic meets the condition of mankind's fingerprint characteristic：If the fingerprint characteristic meets the mankind
The condition of fingerprint characteristic, then perform step S4；If the fingerprint characteristic is unsatisfactory for the condition of mankind's fingerprint characteristic, judge described in
Fingerprint image is foreign matter image, prompts user to perform step S1.
Wherein, it is described to judge that the step of whether fingerprint characteristic meets the condition of mankind's fingerprint characteristic includes：Judgement is
It is no Finger print corresponding with the fingerprint characteristic to be present, wherein, Finger print includes bucket type fingerprint, arcuate fingerprint and dustpan shaped
Fingerprint.
It is understood that formed by other objects beyond finger image when, the characteristics of image of its image and people
Class fingerprint characteristic is different, and mankind's fingerprint has its distinctive feature.
It is understood that mankind's fingerprint has specific line type, when in the absence of fingerprint corresponding with the fingerprint characteristic
Line type, i.e. fingerprint characteristic do not meet bucket type fingerprint, arcuate fingerprint, or during the fingerprint characteristic of dustpan shaped fingerprint, judge the finger
Print image is foreign matter image, and when Finger print corresponding with the fingerprint characteristic be present, i.e. fingerprint characteristic meets bucket type fingerprint, bends
Type fingerprint, or during the fingerprint characteristic of dustpan shaped fingerprint, perform step S4.
The present invention judges whether the fingerprint characteristic meets mankind's fingerprint characteristic by the line type of fingerprint first, only when true
Determine the condition that fingerprint characteristic meets mankind's fingerprint characteristic, just performed the operation of follow-up Fingerprint recognition, improve identification
Efficiency, prevent the maloperation as caused by pressing other objects beyond finger.
S4. judge whether active user is children：It is pre- to judge whether the fingerprint lines spacing in the fingerprint characteristic is more than
The numerical value put；If the fingerprint lines spacing is more than the preset numerical value, judge that the fingerprint characteristic is special for adult's fingerprint
Sign, close functions of child lock；If the fingerprint lines spacing in fingerprint characteristic is not more than preset numerical value, user is prompted to perform step
S1；
Wherein, the preset numerical value is more than the higher limit of target children's fingerprint lines average headway, and less than adult's fingerprint line
The lower limit of road average headway.As an example, when kinsfolk is more fixed, than if any two children of less than 10 years old and two
The family of four of individual adult, then two children are target children, ascending point of the fingerprint lines average headway of target children
Not Wei G1 and G2, and it is respectively G3 and G4 that the fingerprint lines average headways of two adults are ascending, then preset second value
Between G2 and G3, by being easier to close functions of child lock in this way, may insure to be grown up for two, and children can not close child
Lock function.
It can meet the otherness in different home or customers by adjusting the size of preset numerical value in the present invention
Use demand, it is ensured that the accuracy of judgement.
Preferably, judged result is exported by voice and/or text importing mode in step S4.
It should be noted that functions of child lock is in state open in usual in the present invention.
As a further improvement, after closing functions of child lock failure using fingerprint recognition, pass through non-unlocked by fingerprint mode solution
Lock.Non- unlocked by fingerprint mode, other unlocking manners in addition to unlocked by fingerprint can be referred to, for example, password unlocks, figure unlocks,
Face unblock, iris unblock, etc..
Present invention could apply on all kinds of household electrical appliance, the household electrical appliance include but is not limited to：Electric refrigerator, such as ice
Case, cold drink machine etc.；Electric temperature regulator, such as air-conditioning, electric fan, Cooling and heating blower, dehumidifier；Cleaning appliance, such as washing machine, wash
Bowl machine, dryer, dust catcher etc.；Kitchen and bath's electrical equipment, such as micro-wave oven, electromagnetic oven, electric oven, electric cooker, electric pressure cooker, electric hot water
Device, food processor etc.；Acoustic image electrical equipment, including television set, sound equipment, projecting apparatus, video camera etc..
Embodiment described above only expresses embodiments of the present invention, and its description is more specific and detailed, but can not
Therefore the limitation to the scope of the claims of the present invention is interpreted as, as long as the skill obtained using the form of equivalent substitution or equivalent transformation
Art scheme, it all should fall within the scope and spirit of the invention.
Claims (8)
1. a kind of child lock control method using fingerprint recognition, it is characterised in that including step：
S1. the fingerprint input of user is gathered, obtains fingerprint image to be identified；
S2. the fingerprint characteristic of the fingerprint image is obtained；
S3. judge whether the fingerprint characteristic meets the condition of mankind's fingerprint characteristic：If the fingerprint characteristic meets mankind's fingerprint
The condition of feature, then perform step S4；
S4. judge whether active user is children：It is preset to judge whether the fingerprint lines spacing in the fingerprint characteristic is more than
Numerical value；If the fingerprint lines spacing is more than the preset numerical value, judge that the fingerprint characteristic for fingerprint characteristic of being grown up, closes
Close functions of child lock.
2. child lock control method as claimed in claim 1, it is characterised in that described to judge whether the fingerprint characteristic meets people
The step of condition of class fingerprint characteristic, includes：Finger print corresponding with the fingerprint characteristic is judged whether, wherein, fingerprint
Line type includes bucket type fingerprint, arcuate fingerprint and dustpan shaped fingerprint.
3. child lock control method as claimed in claim 1, it is characterised in that if the fingerprint characteristic is unsatisfactory for mankind's fingerprint spy
The condition of sign, then the fingerprint image is judged for foreign matter image, prompt user to perform step S1.
4. child lock control method as claimed in claim 1, it is characterised in that the preset numerical value is more than target children's fingerprint
The higher limit of lines average headway, and less than the lower limit of adult's fingerprint lines average headway.
5. child lock control method as claimed in claim 1, it is characterised in that if the fingerprint lines spacing in fingerprint characteristic is little
In preset numerical value, then user is prompted to perform step S1.
6. child lock control method as claimed in claim 1, it is characterised in that pass through voice and/or text importing in step S4
Mode exports judged result.
7. child lock control method as claimed in claim 1, it is characterised in that close functions of child lock using fingerprint recognition and fail it
Afterwards, unlocked by non-unlocked by fingerprint mode.
8. child lock control method as claimed in claim 1, it is characterised in that also include entering fingerprint image after step S1
Row pretreatment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201711200153.0A CN107749109A (en) | 2017-11-27 | 2017-11-27 | A kind of child lock control method using fingerprint recognition |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711200153.0A CN107749109A (en) | 2017-11-27 | 2017-11-27 | A kind of child lock control method using fingerprint recognition |
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| CN107749109A true CN107749109A (en) | 2018-03-02 |
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| CN201711200153.0A Pending CN107749109A (en) | 2017-11-27 | 2017-11-27 | A kind of child lock control method using fingerprint recognition |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111827802A (en) * | 2019-04-15 | 2020-10-27 | 浙江吉利控股集团有限公司 | Child lock control device, method and equipment |
| CN112991594A (en) * | 2021-04-01 | 2021-06-18 | 德施曼机电（中国）有限公司 | Fingerprint lock and unlocking method thereof |
| CN113011374A (en) * | 2021-04-01 | 2021-06-22 | 德施曼机电（中国）有限公司 | Intelligent lock and fingerprint acquisition method thereof |
| CN113034749A (en) * | 2021-04-01 | 2021-06-25 | 德施曼机电（中国）有限公司 | Intelligent lock and fingerprint acquisition method thereof |
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Application publication date: 20180302 |