A kind of smart home finger-print cipher door lock
Technical field
The invention belongs to door lock field, and in particular to a kind of smart home door lock of high security.
Background technology
The common unlocking verification mode of existing smart lock is swiped the card, input numerical ciphers, fingerprint or two kinds of verification modes
It is combined, but certain potential safety hazard all be present in these unlocking verification modes, for example card and fingerprint presence are stolen or replicated
Situation, password then there is a situation where to be spied upon, and corresponding safe class requires higher user, and existing cipher mode is difficult to full
Its demand of foot.
The Chinese patent application that document number is CN104594732A discloses the door lock that a kind of password is opened with fingerprint combination,
The door lock used on door can be arranged on, the password key and fingerprint that opening door lock is provided with outside its lock body are inputted by mould.Make
Used time, it thus can allow door lock that there is more preferable anti-theft function, together by ability opening door lock after password key and fingerprint input
When can exempt turning the key in the lock and must carry with the trouble of key.--- in the scheme of the patent application publication, although using
Password, the verification mode of fingerprint combination, but the safety defect of both password, fingerprint still has.
Document number is that CN106372481A Chinese patent application discloses a kind of fingerprint permutation and combination password, including fingerprint
Permutation and combination method, fingerprint permutation and combination password insert integrated chip and enter computer, mobile phone, identity card, bank card, various door locks
Deng, and the program authorization and identification of computer (mobile phone) are carried out, its method is:By the fingerprint that left hand refers to by thumb to little finger of toe point
Biao Ji not be, 2,3,4,5 that the right hand is then labeled as 6,7,8,9,0, these fingerprints are arranged in into various combination forms fingerprint row
Row combination pin.According to this method, fingerprint, which can rearrange, is combined into new finger-print cipher, is not afraid of fingerprint and is stolen, fingerprint row
Row combination pin can be used alone.Under the triple protection that fingerprint, fingerprint combination and software need fingerprint combination password authorization,
Fingerprint permutation and combination password is not easy to crack.--- in the scheme of the patent application publication, further improved compared to a upper scheme
Safe class, improve the difficulty of decryption, but it is single consider from hardware aspect, still without solving Password Input order and refer to
Line is stolen the problem of usurping.
The content of the invention
The technical problems to be solved by the invention are:In view of the deficienciess of the prior art, provide a kind of cryptosecurity etc.
Level is high, avoids password from being spied upon the smart home door lock for causing encrypted message to be revealed.
To realize the purpose of the present invention, it is achieved using following technical scheme:A kind of smart home finger-print cipher door lock,
Include the lock body in door body, the outer panels installed in door body outside, and the inner face installed in door body indoor
Plate;Oblique dead bolt and Square lock bolt respectively by motor or solenoid actuated is installed in the lock body;Peace is rotated on the wainscot
Equipped with oblique tongue linked driving the Internal handle of oblique dead bolt unblock;
The finger that the top of the outer panels forms a rectangle stretches into mouth, and the rear end of the outer panels corresponds to finger and stretched
The position of entrance is provided with a fingerprint password input device, and the fingerprint password input device includes main part and is connected to master
The lid of body portion rear end;The main part is fingerprint input module installation portion close to the lower front of outer panels, the main part
Fingerprint input module installation portion above, an opening and finger formed between rear and lid stretch into the L-shaped that mouth connects
Finger stretches into chamber;The fingerprint input module installation portion one side relative with lid is provided with finger-print cipher input module;
The finger-print cipher input module includes a Password Input module board, along Password Input module board
Length direction is connected to 4 pressure sensors of Password Input module board, is respectively fixedly connected with each pressure sensor
On 4 finger print acquisition modules;
Stretched into the outer panels positioned at finger on the left of mouth and a confirmation button is installed, the outer panels top forms
One skew wall face, a display screen is installed on the skew wall face;
The display screen, each pressure sensor, finger print acquisition module and confirm button respectively with installed in interior
Control board electrical connection in panel;
When inputting finger-print cipher by finger-print cipher input module, index finger, middle finger, ring finger and little finger correspond to press respectively
Along on four finger print acquisition modules of fingerprint password input device left and right directions arrangement, each finger presses each according to password order
Individual finger print acquisition module makes the pressure suffered by the pressure sensor of correspondence position reach default value, the pressure sensor institute
The pressure value being subject to real-time display on the display screen, the row double figures of real-time display 4 numeral, 4 columns on the display screen
Word corresponds to the pressure value of four pressure sensors arranged from left to right respectively, and when the pressure sensor of correspondence position is pressed
When force value is zero, the respective column Dynamic Announce pseudo random number on display screen;Pressure sensor in each position is pressed into default
During numerical value, the confirmation button is pressed using thumb, is pressed after confirming button, the fingerprint of control board extraction correspondence position is adopted
The finger print information that collection module is got, four are formed according to the fingerprint sequence with different pressures value while sequential arrangement, control
Circuit board processed compares the fingerprint sequence information that fingerprint sequence is independently set with user, if fingerprint sequence information is consistent, judges
Password Input is correct, and control board controlled motor or electromagnet drive oblique dead bolt and Square lock bolt to perform unlocking step, if fingerprint
Sequence information is inconsistent, then judges Password Input mistake, prompts user to re-enter password by display screen.
Preferably:The default value of the pressure is fixed numbers, when pressing the pressure sensor, when real-time
Pressure value and setting fixed numbers between difference be less than 0.2 Newtonian time, it is believed that real-time pressure value is equal to default
Numerical value;The precision of shown real-time pressure numerical value is 0.1 newton on the display screen.
Preferably:The outer panels top, which is located at finger, to be stretched into a mouthful lower position and is provided with bell button, described
Doorbell loudspeaker are installed, the bell button, doorbell loudspeaker electrically connect with control board respectively in wainscot.
Preferably:Numeral is installed positioned at the position that bell button and finger are stretched between mouth in the outer panels
Keyboard, the numeric keypad electrically connect with control board, user be used to inputting finger-print cipher Toe Transplantation for Segmental Finger is injured and nothing
When method normally inputs complete finger print password, user first inputs the password of one group of 6 bit digital on numeric keypad, and then user will eat
Any one above finger in finger, middle finger, the third finger, little finger of toe is pressed on finger print acquisition module at an arbitrary position, control circuit
Plate extracts the finger print information that at least one finger print acquisition module is got, and the finger print information independently set with user is compared
Right, after matching user identity, control board sends dynamic verification code, user to the mobile terminal of corresponding user identity binding
Second group of password is obtained plus a setting numeral, user inputs the on numeric keypad on the basis of the numerical value of dynamic verification code
After two groups of passwords, control board controlled motor or electromagnet drive oblique dead bolt and Square lock bolt to perform unlocking step,
Preferably:The height that the finger stretches into mouth is 20-30mm.
Preferably:The upper and lower end that the finger stretches into mouth is connected with soft expanded material, and finger stretches into mouth
10-15mm gap is left between the expanded material of upper and lower end.
Compared with prior art, the beneficial effects of the invention are as follows:The present invention is close by the fingerprint in outer panels
Code loader is unlocked, and motor or the oblique dead bolt of magnet control, Square lock bolt unblock can open the door after unlocking, operation side
Just.Further, when using finger-print cipher input module input finger-print cipher.Even if user fingerprints are maliciously got, but
Except with open air, nobody can know the input order of finger-print cipher.Also it is difficult to find that input is suitable under other people intentionally observation
Sequence.Even if part input sequence is known, specific numeral that other people can not also know the cipher, and user is also without as using general
Password is the same is deliberately blocked for logical scrambler input, and security is very high.
Brief description of the drawings
Fig. 1, Fig. 2 are the structural representations of the present invention.
Fig. 3 is the structural representation of fingerprint password input device.
Fig. 4 is the structural representation of fingerprint Password Input module.
1st, wainscot;2nd, lock body;21st, oblique dead bolt;22nd, Square lock bolt;3rd, outer panels;30th, finger stretches into mouth;31st, numerical key
Disk;32nd, bell button;33rd, display screen;34th, button is confirmed;4th, fingerprint password input device;41st, main part;411st, finger stretches into
Chamber;412nd, fingerprint input module installation portion;42nd, lid;43rd, finger-print cipher input module;431st, finger print acquisition module;432nd, press
Force snesor;433rd, Password Input module board;5th, Internal handle.
Embodiment
Embodiment 1
According to Fig. 1 to Fig. 4, the present embodiment is a kind of smart home finger-print cipher door lock, is included installed in door body
Interior lock body 2, the outer panels 3 installed in door body outside, and the wainscot 1 installed in door body indoor;In the lock body
It is provided with respectively by the oblique dead bolt 21 and Square lock bolt 22 of solenoid actuated;It is rotatablely equipped with the wainscot and oblique tongue linked
Driving the Internal handle 5 of oblique dead bolt unblock.
Tiltedly dead bolt, the Square lock bolt are respectively the dead bolt of two electric mortise locks, and oblique dead bolt passes through gear or rack with Internal handle
Linkage is realized, is easy to directly open the door by pulling Internal handle from indoor.
The finger that the top of the outer panels forms a rectangle stretches into mouth 30, and the rear end of the outer panels corresponds to finger
The position for stretching into mouth is provided with a fingerprint password input device 4, and the fingerprint password input device includes main part 41 and connected
It is connected on the lid 42 of main part rear end;The main part is fingerprint input module installation portion 412 close to the lower front of outer panels,
An opening is formed above the fingerprint input module installation portion of the main part, between rear and lid and stretches into mouth company with finger
Logical finger stretches into chamber 411;The position relative with lid is provided with finger-print cipher input module in the finger-print cipher input unit
43。
The finger-print cipher input module includes a Password Input module board 433, along Password Input module electricity
Road plate length direction is connected to 4 pressure sensors 432 of Password Input module board, is respectively fixedly connected with each pressure
4 finger print acquisition modules 431 on sensor.
Stretched into the outer panels positioned at finger on the left of mouth and a confirmation button 34 is installed, the outer panels top shaping
There is a skew wall face, a display screen 33 is installed on the skew wall face.
The electric mortise lock, display screen, each pressure sensor, finger print acquisition module and confirm button respectively with peace
Control board electrical connection in externally manifolded plate or wainscot.
When inputting finger-print cipher by finger-print cipher input module, index finger, middle finger, ring finger and little finger correspond to press respectively
Along on four finger print acquisition modules of fingerprint password input device left and right directions arrangement, each finger presses each according to password order
Individual finger print acquisition module makes the pressure suffered by the pressure sensor of correspondence position reach default value, the pressure sensor institute
The pressure value being subject to real-time display on the display screen, the row double figures of real-time display 4 numeral, 4 columns on the display screen
Word corresponds to the pressure value of four pressure sensors arranged from left to right respectively, and when the pressure sensor of correspondence position is pressed
When force value is zero, the respective column Dynamic Announce pseudo random number on display screen;Pressure sensor in each position is pressed into default
During numerical value, the confirmation button is pressed using thumb, is pressed after confirming button, the fingerprint of control board extraction correspondence position is adopted
The finger print information that collection module is got, four are formed according to the fingerprint sequence with different pressures value while sequential arrangement, control
Circuit board processed compares the fingerprint sequence information that fingerprint sequence is independently set with user, if fingerprint sequence information is consistent, judges
Password Input is correct, and control board controlled motor or electromagnet drive oblique dead bolt and Square lock bolt to perform unlocking step, if fingerprint
Sequence information is inconsistent, then judges Password Input mistake, prompts user to re-enter password by display screen.
The real-time pressure value precision of the display screen display be 0.1 newton, and is multiplied by 10 and is scaled integer and show, such as pressure
Force value is 0.2 Newtonian time, shows screen display 2(Value shown on display screen is hereafter designated as pressing force).
The default value of the pressure is fixed numbers, when pressing the pressure sensor, when real-time pressure value with
Difference between the fixed numbers of setting is less than 0.2 Newtonian time, it is believed that real-time pressure value is equal to default value;The display
The precision of shown real-time pressure numerical value is 0.1 newton on screen.
In order to more directly understand the key of finger-print cipher input module, citing below further illustrates:Such as forefinger, in
Finger, nameless and little finger of toe correspond to 1,2,3 and 4 respectively, if setting code is 2143, set pressing force as 8765(Pressure may be selected
Numerical value is 1-8), then middle finger is pressed successively, makes to press confirmation button when secondary series is shown in the range of 6 to 10 on display screen, then
Forefinger is pressed, makes to press confirmation button when first row is shown in the range of 5 to 9 on display screen, then presses little finger of toe, make on display screen
Confirmation button is pressed when in the range of the 4th row display 4 to 8, finally presses the third finger, the 3rd row on display screen is shown 3 to 7 models
Confirmation button is pressed when enclosing interior.
Certainly, password can also be set to 6 conventional bit digitals, for example setting code is 232421, set pressing force as
876567, then middle finger is pressed successively(Secondary series pressure shows 6 to 10), it is nameless(3rd row pressure shows 5 to 9), middle finger(The
Two row pressure show 4 to 8), little finger of toe(4th row pressure shows 3 to 7), middle finger(Secondary series pressure shows 4 to 8), forefinger(First
Row pressure shows 5 to 9).
When the pressure sensor of correspondence position be under pressure value be zero when, the respective column Dynamic Announce pseudorandom on display screen
Number.The pseudo random number can carry out calculating acquisition, such as a position according to the real-time pressing force of the pressure sensor being under pressure
The pressure sensor the put value that is under pressure is N(N is 1-8)When, the pressure of other three positions is shown as(N+2)、(N+3)With
(N-1).
By above-mentioned technological means, because four column of figures are closer on display screen, only user oneself knows see
The numeral of which row, even if other people look at display screen, observation user is operated, and can not also know the password that user specifically inputs.
The outer panels top, which is located at finger, to be stretched into a mouthful lower position and is provided with bell button, is provided with the wainscot
Doorbell loudspeaker, the bell button, doorbell loudspeaker electrically connect with control board respectively.When pressing bell button, control circuit
The indoor user of plate control doorbell loudspeaker work prompting.
The height that the finger stretches into mouth is 20-30mm.
Embodiment 2
The present embodiment makes following improvement on the basis of embodiment 1:It is located at bell button and finger in the outer panels
The position stretched between mouth is provided with numeric keypad, and the numeric keypad electrically connects with control board, is used to input in user
The Toe Transplantation for Segmental Finger of finger-print cipher is injured and when can not normally input complete finger print password, user first inputs one group on numeric keypad
The password of 6 bit digitals, then user by any one above finger in index finger, middle finger, ring finger and little finger by an arbitrary position
Finger print acquisition module on, control board extracts the finger print information that at least one finger print acquisition module is got, and and user
The finger print information independently set is compared, and after matching user identity, control board is to the shifting with corresponding user identity binding
Dynamic terminal sends dynamic verification code, user on the basis of the numerical value of dynamic verification code plus a setting numeral obtain second group it is close
Code, after user inputs second group of password on numeric keypad, control board controlled motor or electromagnet drive oblique dead bolt and side
Dead bolt performs unlocking step.
For example dynamic password is 756452, setting numeral is 123, then second inputted group password is 756575.
Embodiment 3
The present embodiment makes following improvement on the basis of embodiment 1 or 2:The finger stretches into the upper and lower end connection of mouth
There is a soft expanded material, finger stretches between the expanded material of mouthful upper and lower end the gap for leaving 10-15mm.Expanded material makes
User's finger is stretched into after mouth stretches into from finger, the part that user's finger is located in finger input cavity is completely invisible, Ta Renwu
Method judges that user is which finger is being operated, and further increases security performance.