CN102230343A - Intelligent door lock - Google Patents
Intelligent door lock Download PDFInfo
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- CN102230343A CN102230343A CN2011101460422A CN201110146042A CN102230343A CN 102230343 A CN102230343 A CN 102230343A CN 2011101460422 A CN2011101460422 A CN 2011101460422A CN 201110146042 A CN201110146042 A CN 201110146042A CN 102230343 A CN102230343 A CN 102230343A
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- door lock
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- face recognition
- key
- shank
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
- E05B2047/0084—Key or electric means; Emergency release
- E05B2047/0086—Emergency release, e.g. key or electromagnet
- E05B2047/0087—Electric spare devices, e.g. auxiliary batteries or capacitors for back up
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Abstract
The invention discloses an intelligent door lock which realizes an intelligent human face recognition door lock capable of automatically generating electricity. The intelligent door lock provided by the invention comprises a lock handle and also comprises a human face recognition module, a door lock control module and a power supply module, wherein the human face recognition module is used for acquiring a human face image of a user and authenticating the user through recognizing the human face image; the door lock control module is connected with the human face recognition module and used for controlling the door lock opening when the user authentication is passed through the human face recognition module; and the power supply module is connected with the human face recognition module and the door lock control module, and is used for generating electricity through the rotation of the lock handle when the user opens or closes the door lock through the lock handle and storing electric energy to be used by the human face recognition module and the door lock control module.
Description
Technical field
The present invention relates to lock technology field, relate in particular to a kind of intelligent door lock.
Background technology
Recognition of face belongs to field of biological recognition, it is an important component part of field of biological recognition, apply it to the intelligent door lock field, can change the custom that traditional the making of people turns the key in the lock and close the door, and open the door and close the door with the method for recognition of face, avoided people to leave behind the inconvenience that key can't open the door and bring, and directly perceived friendly more, convenient, safety etc.
The intelligent door lock that has face identification functions at present, power consumption is bigger during its work, also there is certain quiescent dissipation during usual the shutdown, if using civil power powers, though can satisfy the requirement of long-term use, but electrical socket must be installed near door lock and arrange cable, influence the door lock overall appearance, install complicated.If the use powered battery because door lock work power consumption and quiescent dissipation consumption generally use some months just to need to change battery, needs often to change battery, the user experiences relatively poor.
In sum, there is inconvenience in prior art recognition of face intelligent door lock by the mode of external power source, demands providing a kind of better power supply mode urgently.
Summary of the invention
The embodiment of the invention provides a kind of intelligent door lock, in order to realize having the recognition of face intelligent door lock of automatic electricity generate function.
A kind of intelligent door lock that the embodiment of the invention provides comprises:
Face recognition module is used to gather face images of users, by the identification to facial image, the user is carried out authentication;
The door lock control module links to each other with face recognition module, is used for when face recognition module is passed through subscription authentication, and door lock is opened in control;
Power module links to each other with the door lock control module with face recognition module, is used for when the user opens by shank of the key or closes door lock, and by the rotation generating of shank of the key, and storage of electrical energy, use for face recognition module and door lock control module.Described power module further comprises: the power conduction unit, link to each other with shank of the key, and be used for producing kinetic energy by the rotation of shank of the key; Microgenerator links to each other with the power conduction unit, is used for the kinetic energy that the power conduction unit produces is converted into electric energy; Energy-storage units links to each other with microgenerator, is used to store the electric energy that microgenerator produces; PMU links to each other with energy-storage units, and being used for provides power supply to face recognition module and door lock control module when needs are opened door lock by recognition of face.
In a kind of intelligent door lock that the embodiment of the invention provides, face recognition module is used to gather face images of users, by the identification to facial image, the user is carried out authentication; The door lock control module links to each other with face recognition module, is used for when face recognition module is passed through subscription authentication, and door lock is opened in control; Power module, link to each other with the door lock control module with face recognition module, be used for when the user opens by shank of the key or closes door lock, rotation generating by shank of the key, and storage of electrical energy, use for face recognition module and door lock control module, thereby realized having the recognition of face intelligent door lock of automatic electricity generate function.
Description of drawings
The structural representation of a kind of intelligent door lock that Fig. 1 provides for the embodiment of the invention;
The concrete structure schematic diagram of a kind of intelligent door lock that Fig. 2 provides for the embodiment of the invention;
The structural representation of the door lock control module that Fig. 3 provides for the embodiment of the invention;
The overall structure of the recognition of face door lock that Fig. 4 provides for the embodiment of the invention and the structural representation of each module;
Self power generation module and energy-storage units structural representation in the outer lock body that Fig. 5 provides for the embodiment of the invention;
The structural representation of the PMU that Fig. 6 provides for the embodiment of the invention;
The circuit theory schematic diagram of the button start-up circuit that powers on of the PMU that Fig. 7 provides for the embodiment of the invention;
The circuit theory schematic diagram of the power supply voltage converting circuit of the PMU that Fig. 8 provides for the embodiment of the invention.
The specific embodiment
The embodiment of the invention provides a kind of intelligent door lock, in order to realize having the recognition of face intelligent door lock of automatic electricity generate function, need not the dispatch from foreign news agency power supply.
The technical scheme that the embodiment of the invention provides, realized a kind of intelligent door lock with face identification functions, and dispense with outer connecting power or use powered battery, can in the operation of each switch door, generate electricity automatically by rotating shank of the key, and by energy-storage travelling wave tube electrical power storage is got up, give whole door-locking system power supply when needed.
Below in conjunction with accompanying drawing the technical scheme that the embodiment of the invention provides is described.
Referring to Fig. 1, a kind of intelligent door lock that the embodiment of the invention provides comprises shank of the key, also comprises:
Door lock control module 12 links to each other with face recognition module 11, is used for when face recognition module is passed through subscription authentication, and door lock is opened in control;
Preferably, described power module 13 comprises:
Energy-storage units 133 links to each other with microgenerator 132, is used to store the electric energy that microgenerator 132 produces;
PMU 134 links to each other with energy-storage units 133, and being used for provides power supply to face recognition module 11 and door lock control module 12 when needs are opened door lock by recognition of face.
Preferably, described power conduction unit 131 comprises:
The charging transmitting gear is positioned on the axle of shank of the key, is driven by shank of the key and rotates;
Speed change accelerating gear group with the interlock of charging transmitting gear, is rotated along with the rotation of charging transmitting gear, reaches preset rotation speed, thereby drives the microgenerator generating.
Preferably, described preset rotation speed is to determine that according to microgenerator generating dutation and generated output for example, described preset rotation speed can be 50 revolutions per seconds in advance.
Preferably, described energy-storage units 133 is made of a plurality of ultracapacitors.
Preferably, described a plurality of ultracapacitors connect by series connection and/or mode in parallel, make described energy-storage units 133 can store default electric weight.
Preferably, described power module 13 also comprises:
Start button, link to each other with PMU, being used to control PMU provides power supply to face recognition module and door lock control module.
Preferably, described face recognition module 11 comprises:
Preferably, described face recognition module 11 also comprises:
The registration button is used to control the facial image that image storage unit 112 memory image collecting units 111 collect;
The deletion button is used to control the facial image that deleted image memory cell 112 is stored.
Preferably, described shank of the key comprises outer shank of the key and interior shank of the key.
Above-mentioned power conduction unit 131 and microgenerator 132 constitute the self power generation module.
This shows, self power generation module, energy-storage units consist of power module with PMU, and power module provides power supply for face recognition module, door lock control module, during the success of face recognition module identification people face, driving gate lock control module is controlled lock core, opens door lock.
The self power generation module is rotated the shank of the key electricity generated manually by in the operation of each switch door, and in energy-storage units, energy-storage units can be a kind of storage capacitor, for example super capacitor with electrical power storage.Energy-storage units is connected with PMU, and its electric energy stored offers power module in system works.Power module and face recognition module, door lock control module are given connected face recognition module and the power supply of door lock control module.Between face recognition module and the door lock control module, carry out communication by the serial ports connection, wherein said serial ports is universal asynchronous serial interface (UART).
Fig. 2 is the concrete structure theory diagram of a kind of intelligent door lock of providing of the embodiment of the invention.Whole door lock comprises three parts, is respectively outer lock body, door-plate and interior lock body.
Outer lock body is installed in the outside of door.In the lock body, mainly comprise image acquisition units 111, image storage unit 112, matching treatment unit 113, power conduction unit 131, microgenerator 132, energy-storage units 133 and PMU 134 outside.
Wherein, image acquisition units 111 is made up of infrared LED light filling lamp and infrared photography module.When infrarede emitting diode LED gathers facial image at the infrared photography module, in order to infrared auxiliary light filling.Matching treatment unit 113 includes flush bonding processor and synchronous dynamic processor (SDRAM).Flash memory (FLASH) is an image storage unit 112.Flush bonding processor is connected with flash memory (FLASH), synchronous dynamic processor (SDRAM) by data/address bus.When collecting an effective facial image, carry out face recognition algorithms and handle, when discerning successfully, send corresponding signal by serial ports UART and give door lock control module 12.
Start button 20, connect power management module 134, be used to control power management module 134 and power on to system.
Outside each the rotation when shank of the key 30 or interior shank of the key 40, drive the gear in the power conduction unit 131, kinetic energy is transferred to microgenerator, microgenerator 132 changes into electric energy with kinetic energy, out-put supply is given energy-storage units 133(super capacitor) in, press when starting button 20, the control power module powers on, when starting the recognition of face door lock, super capacitor discharges to PMU 134,134 pairs of voltages of PMU are regulated, to satisfy the power requirement of face recognition module and door lock control module 12.
In door-plate, mainly comprise door lock control module 12, door lock control module 12 is by interface mode and flush bonding processor communication, and door lock control module 12 is controlled free bayonet catch 50.Referring to Fig. 3, there are microprocessor and bayonet catch control module in door lock control module 12 inside in the embodiment of the invention, are connected communication by general serial asynchronous interface UART, with flush bonding processor and (according to realizing design, also can select I
2The communication of interface mode such as C, SPI), after recognition of face success, accept the door lock open command, open free bayonet catch 50, at this moment, can rotating lock tongue 1 when outer shank of the key 30 rotates, control dead bolt 1 is opened; Also have dead bolt 2 in the door-plate, directly control the switch of dead bolt 2 by outer shank of the key 30 or interior shank of the key 40.Wherein, after free bayonet catch 50 is opened, can close automatically through certain hour (for example 10 seconds etc.), therefore, when free bayonet catch 50 was closed, non-registered user was outdoors can't be by outer shank of the key 30 unlock deadbolt 1, so also just can't open the door.
Interior lock body is installed in the inboard of door.In interior lock body, mechanical knob switch 60 is installed, be connected directly to dead bolt 1, be used for the switch of user at door inner control dead bolt 1.When the user in door, when locking, open dead bolt 1 by rotary machine rotary switch 60 by 60 pairs of dead bolts 1 of mechanical knob switch, open dead bolt 2 by interior shank of the key 40 again, can open door lock.
The user gos out in the time of need locking a door, and opens dead bolt 1 by mechanical knob switch 60 earlier in door, again by interior shank of the key 40 unlock deadbolt 2, door is opened, the user from directly passing through outer shank of the key 30 outdoors, both can close dead bolt 1 and dead bolt 2 simultaneously, thereby reach the purpose of locking a door again.
Preferably, can be set the maximum time of recognition of face in the embodiment of the invention, for example 5 ~ 10 seconds, still do not discern successfully if surpass this time range, then recognition of face is no longer carried out in outage automatically, to save power supply.
Fig. 4 is the structural representation of overall structure and each module of recognition of face door lock.When outer shank of the key 30 and interior shank of the key 40 rotate, can both drive charging transmitting gear 23, thereby drive speed change accelerating gear group 24, each swing handle can both generate electricity, and improves generating efficiency.Microgenerator 132 generating, electric weight directly is stored in energy-storage units 133, and energy-storage units 133 is outside in the lock body.The output of energy-storage units 133 connects PMU 134, during people's face lock start recognition of face, opens the output enable end of energy-storage units 133, and PMU 134 transforms the required voltage of adult's face lock system to tank voltage and uses for system.Among Fig. 4 31 is the unit that is used to carry out recognition of face that comprises matching treatment unit and image storage unit, and 111 is image acquisition units, and 33 is LED light filling lamp, and 34 is lock core.
Fig. 5 is self power generation module and an energy-storage units structural representation in the outer lock body, the self power generation module is made up of charging transmitting gear 23, speed change accelerating gear group 24, microgenerator 132, in addition, outer shank of the key 30 and interior shank of the key 40 also can be can be regarded as the part of self power generation module.One charging transmitting gear 23 is installed on the axle of the handle of shank of the key 30 and interior shank of the key outside, the axle of handle connects speed change accelerating gear group 24, speed change accelerating gear group 24 is connected on the microgenerator 132, during turning handle, drive charging transmitting gear 23, rotate speed change accelerating gear group 24 again, produce certain rotating speed (at least 50 revolutions per seconds), drive microgenerator 132 generatings.Generator output connects stored charge device (being energy-storage units 133).
Embodiment of the invention energy-storage units is made of super capacitor, and super capacitor has short, the long advantages such as recycling life-span, storage life, high reliability that charges and discharge of charging interval.
Ultracapacitor monomer storage power is limited and withstand voltage not high, polyphone that need be by a plurality of ultracapacitors and and linked method carry out dilatation, make energy-storage units can store abundant electric energy (reaching the electric energy of 6V, 0.5F at least).
Fig. 6 is the structural representation of PMU, and PMU comprises power on button start-up circuit and power supply voltage converting circuit two parts.
Fig. 7 is the circuit theory diagrams of the button start-up circuit that powers on of PMU.The electrifying startup circuit mainly is made up of the d type flip flop U1 and the button that powers on, and C_BAT is the super capacitor output.When opening recognition of face, manually press startup button SW, produce effectively to go up and jump the edge, make d type flip flop U1 export significant level, export to the power supply voltage converting circuit Enable Pin.
Fig. 8 is the circuit theory diagrams of the power supply voltage converting circuit of PMU.Power supply voltage converting circuit mainly is made of two DC/DC modules A P1534, and when manually pressing the startup button, voltage conversion circuit U2, U3 two-way DC/DC export 1.8V respectively and 3.3V uses for face recognition module and door lock control module.
The technical scheme that provides below in conjunction with the concrete data declaration embodiment of the invention.
One, the power consumption of face recognition module:
Reality records: face recognition module 1s start-up time, starting current are 100mA; The recognition of face time is 1s: electric current is 180mA during identification; Discern successfully back system standby 3s, standby current is 5mA.
Leave and take certain surplus: facial image average current of face recognition module identification is 200mA, and the time is 5s.
Two, the selection of super capacitor rated voltage and capacitance:
Two main application of ultracapacitor: high power pulse is used and instantaneous power keeps.According to recognition of face intelligence lock feature, should be instantaneous power and keep.
Calculate required super capacitor capacity according to following formula.
The energy that keeps institute's energy requirement=super capacitor to reduce.
Energy requirement=the 1/2I of institute (Vwork+ Vmin) t during the maintenance;
Super capacitor minimizing energy=1/2C (Vwork2-Vmin2),
Thereby, can get its capacity (ignoring the pressure drop that causes by IR) and be:
C=(Vwork+?Vmin)It/(?Vwork2?-Vmin2)。
Wherein,
The nominal capacity of C (F) expression super capacitor;
The nominal internal resistance of R (Ohms) expression super capacitor;
Equivalent series resistance under ESR (Ohms) the expression 1KZ;
Vwork (V) represents normal working voltage;
Vmin (V) expression is by operating voltage;
T (s) is illustrated in and requires continuous working period in the circuit;
I (A) represents load current.
Require according to recognition of face intelligent lock body power consumption: power consumption 200mA, duration 5s, minimum operating voltage is 3V.
Can get: C=(5+3) * 0.2 * 5/ (52-32)=8/17=0.47F;
According to result of calculation, consider that electric capacity internal resistance in discharge process can consume the fraction energy, can select 6V, 0.5F electric capacity just can have been satisfied the demand.
When concrete energy-storage units designs,, need to contact and/or also linked method dilatation, reach above-mentioned super capacitor index by corresponding owing to ultracapacitor monomer storage power is limited and withstand voltage not high.
Three, the super capacitor charging interval calculates:
The super capacitor charging interval calculates according to following formula:
C×dV=I×t
Wherein, C represents the capacitor rated capacity; V represents the capacitor working pressure; I represents charging current of condenser; T represents capacitor charge time.
So 6V, the ultracapacitor of 0.5F, charging current is 500mA, then the charging interval is:
t?=(C×dV)/I=（0.5×6）/0.5=6s
If the selection charging current is 800mA, then only need 3.75s.
Four, direct-flow micromachine is selected:
Adopt the direct current microgenerator of brushless technology, this generator has characteristics such as volume is little, generated energy big, low noise, life-span length, 3-5W is arranged, microgenerators such as rated voltage 3,6,9V in the prior art.
According to the super capacitor charging requirement, can select 3W, rated voltage 6V, rotating speed 3000rpm type microgenerator can satisfy charging requirement.
When the inner speed change accelerating gear of design door lock group, available 3-5 stage gear ratio (or more high-transmission compares to reach required rotating speed) can be realized driving generator with the rotating speed of 50rps, and shank of the key rotates about 6s.As selecting more powerful microgenerator, availablely take still less the time and send face recognition module and finish and once discern needed electric weight.
This shows that the embodiment of the invention is rotated the charging transmitting gear by shank of the key, the driven gear group produces certain rotating speed, as long as reach 50rps, the time is wanted 6s-10s, can produce a recognition of face and promptly control the required power consumption of unlatching door lock.
In sum, embodiment of the invention modularized design is simple in structure, and is easy for installation.Power supply is made of self power generation module, energy-storage units and PMU, and solved door lock and used for a long time, the worry of the replacing battery that the power supply power supply brings, by each swing handle self power generation, and storage of electrical energy is used for each identification.The self power generation module adopts handle rotation driven gear group, adjusts the gear transfer ratio, satisfies the required rotating speed requirement of generating; Energy-storage units adopts super capacitor, can adjust super capacitor series and parallel number, satisfies people's face door lock power consumption and input voltage demand.Whole machinery is simple with circuit structure, has realized a kind of recognition of face intelligent door lock of self power generation.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.
Claims (10)
1. an intelligent door lock comprises shank of the key, it is characterized in that, this door lock also comprises:
Face recognition module is used to gather face images of users, by the identification to facial image, the user is carried out authentication;
The door lock control module links to each other with face recognition module, is used for when face recognition module is passed through subscription authentication, and door lock is opened in control;
Power module links to each other with the door lock control module with face recognition module, is used for when the user opens by shank of the key or closes door lock, and by the rotation generating of shank of the key, and storage of electrical energy, use for face recognition module and door lock control module.
2. door lock according to claim 1 is characterized in that, described power module comprises:
The power conduction unit links to each other with shank of the key, is used for producing kinetic energy by the rotation of shank of the key;
Microgenerator links to each other with the power conduction unit, is used for the kinetic energy that the power conduction unit produces is converted into electric energy;
Energy-storage units links to each other with microgenerator, is used to store the electric energy that microgenerator produces;
PMU links to each other with energy-storage units, and being used for provides power supply to face recognition module and door lock control module when needs are opened door lock by recognition of face.
3. door lock according to claim 2 is characterized in that, described power conduction unit comprises:
The charging transmitting gear is positioned on the axle of shank of the key, is driven by shank of the key and rotates;
Speed change accelerating gear group with the interlock of charging transmitting gear, is rotated along with the rotation of charging transmitting gear, reaches preset rotation speed, thereby drives the microgenerator generating.
4. door lock according to claim 3 is characterized in that, described preset rotation speed is to determine according to microgenerator generating dutation and generated output in advance.
5. door lock according to claim 2 is characterized in that, described energy-storage units is made of a plurality of ultracapacitors.
6. door lock according to claim 5 is characterized in that, described a plurality of ultracapacitors connect by series connection and/or mode in parallel, make described energy-storage units can store default electric weight.
7. according to the described door lock of the arbitrary claim of claim 2-6, it is characterized in that described power module also comprises:
Start button, link to each other with PMU, being used to control PMU provides power supply to face recognition module and door lock control module.
8. door lock according to claim 1 is characterized in that, described face recognition module comprises:
Image acquisition units is used to gather facial image;
Image storage unit is used to store facial image;
The matching treatment unit is used for the facial image that will collect, mates with the facial image of storage, and when the match is successful, trigger gate lock control module was opened door lock.
9. door lock according to claim 8 is characterized in that, described face recognition module also comprises:
The registration button is used to control the facial image that the image storage unit stores image acquisition units collects;
Delete button, be used to control the facial image of deleted image cell stores.
10. door lock according to claim 1 is characterized in that, described shank of the key comprises outer shank of the key and interior shank of the key.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011101460422A CN102230343A (en) | 2011-06-01 | 2011-06-01 | Intelligent door lock |
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| CN2011101460422A CN102230343A (en) | 2011-06-01 | 2011-06-01 | Intelligent door lock |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104318648A (en) * | 2014-10-14 | 2015-01-28 | 苏州德鲁森自动化系统有限公司 | Maintenance-free self-generating access control system |
| CN104732613A (en) * | 2013-12-18 | 2015-06-24 | 王世华 | Video-recording automatic unlocking electronic access control system |
| CN104835230A (en) * | 2015-05-25 | 2015-08-12 | 郭萌 | Method for controlling locks through human face |
| CN104851169A (en) * | 2015-05-25 | 2015-08-19 | 惠州Tcl移动通信有限公司 | Wireless smart lock and unlocking control method thereof |
| CN105275278A (en) * | 2015-08-27 | 2016-01-27 | 祁琳 | Intelligent lock based on storage cabinet of Internet of Things and operation method of intelligent lock |
| CN110045646A (en) * | 2019-04-18 | 2019-07-23 | 佛山职业技术学院 | A kind of more key self-power wireless emitters |
| WO2020248464A1 (en) * | 2019-06-10 | 2020-12-17 | 深圳市物联锁科技有限公司 | New manual charging lock |
| CN112144973A (en) * | 2020-09-08 | 2020-12-29 | 章国相 | Standby self-charging device of face recognition intelligent door lock |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104732613A (en) * | 2013-12-18 | 2015-06-24 | 王世华 | Video-recording automatic unlocking electronic access control system |
| CN104318648A (en) * | 2014-10-14 | 2015-01-28 | 苏州德鲁森自动化系统有限公司 | Maintenance-free self-generating access control system |
| CN104835230A (en) * | 2015-05-25 | 2015-08-12 | 郭萌 | Method for controlling locks through human face |
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| CN105275278A (en) * | 2015-08-27 | 2016-01-27 | 祁琳 | Intelligent lock based on storage cabinet of Internet of Things and operation method of intelligent lock |
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| CN110045646A (en) * | 2019-04-18 | 2019-07-23 | 佛山职业技术学院 | A kind of more key self-power wireless emitters |
| WO2020248464A1 (en) * | 2019-06-10 | 2020-12-17 | 深圳市物联锁科技有限公司 | New manual charging lock |
| CN112144973A (en) * | 2020-09-08 | 2020-12-29 | 章国相 | Standby self-charging device of face recognition intelligent door lock |
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Application publication date: 20111102 |