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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- 238000004146 energy storage Methods 0.000 claims description 31
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- 238000012545 processing Methods 0.000 claims description 6
- 238000010586 diagram Methods 0.000 description 14
- 230000008859 change Effects 0.000 description 6
- 238000010248 power generation Methods 0.000 description 6
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- 238000004364 calculation method Methods 0.000 description 1
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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 invention relates to the technical field of locks, in particular to an intelligent door lock.
Background
Face identification belongs to the biological identification field, is an important component in the biological identification field, uses it in the intelligent door lock field, can change people's traditional habit of using the key to open the door and close the door, and opens the door and closes the door with face identification's method, has avoided people to forget the inconvenience that the key can't open the door and bring to it is friendly, convenient, safe etc. directly perceived more.
At present, the intelligent door lock with the face recognition function has high power consumption during working, certain static power consumption is also generated during normal shutdown, and if the mains supply is used for supplying power, although the requirement of long-term use can be met, a power socket and a cable are required to be installed nearby the door lock, so that the overall appearance of the door lock is influenced, and the installation is complex. If the battery is used for supplying power, the battery needs to be replaced after the door lock is used for several months due to the consumption of the working power consumption and the static power consumption of the door lock, the battery needs to be replaced frequently, and the user experience is poor.
In summary, the prior art has many inconveniences in the way that the face recognition intelligent door lock is powered by an external power supply, and a better power supply way is urgently needed to be provided.
Disclosure of Invention
The embodiment of the invention provides an intelligent door lock, which is used for realizing a face recognition intelligent door lock with an automatic power generation function.
The embodiment of the invention provides an intelligent door lock, which comprises:
the face recognition module is used for collecting a face image of a user and authenticating the user by recognizing the face image;
the door lock control module is connected with the face recognition module and used for controlling the door lock to be unlocked when the face recognition module passes the authentication of the user;
and the power supply module is connected with the face recognition module and the door lock control module and used for generating electricity through rotation of the lock handle and storing electric energy when a user opens or closes the door lock through the lock handle, so that the face recognition module and the door lock control module can use the electric energy. The power module further includes: the power transmission unit is connected with the lock handle and used for generating kinetic energy through the rotation of the lock handle; the micro generator is connected with the power transmission unit and is used for converting the kinetic energy generated by the power transmission unit into electric energy; the energy storage unit is connected with the micro generator and used for storing electric energy generated by the micro generator; and the power management unit is connected with the energy storage unit and used for providing power for the face recognition module and the door lock control module when the door lock needs to be opened through face recognition.
In the intelligent door lock provided by the embodiment of the invention, the face recognition module is used for collecting a face image of a user and authenticating the user by recognizing the face image; the door lock control module is connected with the face recognition module and used for controlling the door lock to be unlocked when the face recognition module passes the authentication of the user; the power module is connected with the face recognition module and the door lock control module and used for generating electricity through rotation of the lock handle when a user opens or closes the door lock through the lock handle and storing electric energy for the face recognition module and the door lock control module to use, so that the face recognition intelligent door lock with an automatic electricity generation function is realized.
Drawings
Fig. 1 is a schematic structural diagram of an intelligent door lock according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of an intelligent door lock according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a door lock control module according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of an overall structure and modules of a face recognition door lock according to an embodiment of the present invention;
FIG. 5 is a schematic structural diagram of a self-generating module and an energy storage unit in an outer lock body according to an embodiment of the invention;
fig. 6 is a schematic structural diagram of a power management unit according to an embodiment of the present invention;
fig. 7 is a schematic circuit diagram of a power-on key start circuit of a power management unit according to an embodiment of the present invention;
fig. 8 is a schematic circuit diagram of a power supply voltage converting circuit of a power management unit according to an embodiment of the present invention.
Detailed Description
The embodiment of the invention provides an intelligent door lock, which is used for realizing a face recognition intelligent door lock with an automatic power generation function and does not need external power supply.
The technical scheme provided by the embodiment of the invention realizes the intelligent door lock with the face recognition function, does not need an external power supply or battery power supply, can automatically generate power by rotating the lock handle in each door opening and closing operation, stores the electric energy through the energy storage element, and supplies power to the whole door lock system when needed.
The technical solution provided by the embodiment of the present invention is explained below with reference to the accompanying drawings.
Referring to fig. 1, an intelligent door lock provided by an embodiment of the present invention includes a lock handle, and further includes:
the face recognition module 11 is used for collecting a face image of a user and authenticating the user by recognizing the face image;
the door lock control module 12 is connected with the face recognition module 11 and used for controlling the door lock to be opened when the face recognition module passes the authentication of the user;
and the power supply module 13 is connected with the face recognition module 11 and the door lock control module 12 and used for generating power through rotation of the lock handle and storing electric energy when a user opens or closes the door lock through the lock handle, so that the face recognition module and the door lock control module can use the electric energy.
Preferably, the power module 13 includes:
a power transmission unit 131 connected to the lock lever for generating kinetic energy by rotation of the lock lever;
a micro-generator 132 connected to the power transmission unit 131, for converting kinetic energy generated by the power transmission unit 131 into electric energy;
an energy storage unit 133 connected to the micro-generator 132 for storing the electric energy generated by the micro-generator 132;
and the power management unit 134 is connected with the energy storage unit 133 and is used for supplying power to the face recognition module 11 and the door lock control module 12 when the door lock needs to be opened through face recognition.
Preferably, the power transmission unit 131 includes:
the charging rotating gear is positioned on the shaft of the lock handle and is driven by the lock handle to rotate;
the variable speed accelerating gear set is meshed with the charging rotating gear and rotates along with the rotation of the charging rotating gear to reach a preset rotating speed, so that the micro generator is driven to generate electricity.
Preferably, the preset rotation speed is determined in advance according to the power generation time and the power generation power of the micro-generator, for example, the preset rotation speed may be 50 rpm.
Preferably, the energy storage unit 133 is formed by a plurality of super capacitors.
Preferably, the plurality of super capacitors are connected in series and/or in parallel, so that the energy storage unit 133 can store a preset amount of electricity.
Preferably, the power module 13 further includes:
and the starting key is connected with the power management unit and used for controlling the power management unit to provide power for the face recognition module and the door lock control module.
Preferably, the face recognition module 11 includes:
an image acquisition unit 111 for acquiring a face image;
an image storage unit 112 for storing a face image;
and the matching processing unit 113 is used for matching the acquired face image with the stored face image, and triggering the door lock control module to open the door lock when the matching is successful.
Preferably, the face recognition module 11 further includes:
a registration key for controlling the image storage unit 112 to store the face image acquired by the image acquisition unit 111;
and a delete key for controlling deletion of the face image stored in the image storage unit 112.
Preferably, the lock handle comprises an outer lock handle and an inner lock handle.
The power transmission unit 131 and the micro-generator 132 constitute a self-generating module.
Therefore, the self-generating module, the energy storage unit and the power management unit are combined together to form the power module, the power module provides power for the face recognition module and the door lock control module, and when the face recognition module recognizes a face successfully, the door lock control module is driven to control the lock cylinder to open the door lock.
The self-generating module manually generates electricity by rotating the lock handle in each door opening and closing operation, and stores the electric energy in an energy storage unit, wherein the energy storage unit can be an energy storage capacitor, such as a super capacitor. The energy storage unit is connected with the power management unit, and the stored electric energy is supplied to the power module when the system works. The power module, the face recognition module and the door lock control module supply power to the face recognition module and the door lock control module which are connected with the power module. The face recognition module is connected with the door lock control module through a serial port for communication, wherein the serial port is a universal asynchronous serial interface (UART).
Fig. 2 is a schematic block diagram of a specific structure of an intelligent door lock according to an embodiment of the present invention. The whole door lock comprises three parts, namely an outer lock body, a door plate and an inner lock body.
The outer lock body is installed on the outer side of the door. In the external lock body, the external lock body mainly comprises an image acquisition unit 111, an image storage unit 112, a matching processing unit 113, a power conduction unit 131, a micro-generator 132, an energy storage unit 133 and a power management unit 134.
Wherein, image acquisition unit 111 comprises infrared LED light filling lamp and the infrared module of making a video recording. When the infrared camera module collects the face image, the infrared light-emitting diode LED is used for infrared auxiliary light supplement. The matching processing unit 113 includes an embedded processor and a synchronous dynamic processor (SDRAM). A FLASH memory (FLASH) is the image storage unit 112. The embedded processor is connected with a FLASH memory (FLASH) and a synchronous dynamic processor (SDRAM) through a data bus. When an effective face image is collected, face recognition algorithm processing is carried out, and when recognition is successful, a corresponding signal is sent to the door lock control module 12 through the serial port UART.
The indicator light 10 is used to indicate the on-off state of the door lock and the state of the registration process, for example, when the door lock is opened, the color of the indicator light 10 is green, when the door lock is closed, the color of the indicator light 10 is red, and when the human face recognition is performed, the indicator light 10 flickers.
The start button 20 is connected to the power management module 134, and is used for controlling the power management module 134 to power on the system.
When the external lock handle 30 or the internal lock handle 40 is rotated each time, the gear in the power transmission unit 131 is driven to transmit kinetic energy to the micro-generator, the micro-generator 132 converts the kinetic energy into electric energy, the electric energy is output to the energy storage unit 133 (super capacitor), when the start button 20 is pressed, the power supply module is controlled to be powered on, when the face recognition door lock is started, the super capacitor discharges electricity to the power supply management unit 134, and the power supply management unit 134 adjusts voltage so as to meet the power supply requirements of the face recognition module and the door lock control module 12.
The door plate mainly comprises a door lock control module 12, wherein the door lock control module 12 is communicated with an embedded processor in an interface mode, and the door lock control module 12 controls a free lock pin 50. Referring to fig. 3, in the embodiment of the present invention, the door lock control module 12 has a microprocessor and a lock pin control unit therein, and is connected to and communicates with the embedded processor through a universal serial asynchronous receiver/transmitter (according to the implementation design, I can be selected as the option)2C. Interface modes such as SPI and the like) when the face recognition is successful, a door lock opening instruction is received, the free lock pin 50 is opened, and at the moment, the lock tongue 1 can be rotated when the outer lock handle 30 rotates, so that the lock tongue 1 is controlled to be opened; the door panel is also provided with a bolt 2, and the opening and closing of the bolt 2 are directly controlled by an outer lock handle 30 or an inner lock handle 40. Since the free lock pin 50 can be automatically closed after a certain time (for example, 10 seconds) has elapsed since it was opened, when the free lock pin 50 is closed, a non-registered user cannot open the locking bolt 1 through the outer lock handle 30 outside the door, and thus cannot open the door.
The inner lock body is arranged on the inner side of the door. In the inner lock body, a mechanical knob switch 60 is installed, directly connected to the latch bolt 1, for a user to control the opening and closing of the latch bolt 1 in the door. When a user locks the bolt 1 through the mechanical knob switch 60 in the door, the mechanical knob switch 60 is rotated to open the bolt 1, and then the inner lock handle 40 is used to open the bolt 2, so that the door lock can be opened.
The registration key 70 and the deletion key 80 are connected with an IO port of the embedded processor, when the system is powered on and enters a face recognition mode, the registration of the face image of the user is controlled by pressing the registration key 70, and the deletion of the face image of the user is controlled by pressing the deletion key 80.
When a user needs to lock a door when going out, the user firstly opens the bolt 1 through the mechanical knob switch 60 from the inside of the door, then opens the bolt 2 through the inner lock handle 40, the door is opened, and the user then directly closes the bolt 1 and the bolt 2 through the outer lock handle 30 from the outside of the door, so that the aim of locking the door is achieved.
Preferably, the embodiment of the present invention may set a maximum time for face recognition, for example, 5 to 10 seconds, and if the recognition is still unsuccessful after exceeding the time range, the power is automatically turned off, and the face recognition is not performed any more, so as to save power.
Fig. 4 is a schematic diagram of the overall structure of the face recognition door lock and the structure of each module. When the outer lock handle 30 and the inner lock handle 40 rotate, the charging rotating gear 23 can be driven, so that the speed change accelerating gear set 24 is driven, power can be generated by rotating the handle every time, and the power generation efficiency is improved. The micro-generator 132 generates electricity, and the electricity is directly stored in the energy storage unit 133, and the energy storage unit 133 is in the outer lock body. The output of the energy storage unit 133 is connected to the power management unit 134, when the face lock is turned on for face recognition, the output enable terminal of the energy storage unit 133 is turned on, and the power management unit 134 converts the energy storage voltage into the voltage required by the face lock system for the system to use. In fig. 4, 31 is a unit for face recognition including a matching processing unit and an image storage unit, 111 is an image acquisition unit, 33 is an LED fill light, and 34 is a lock cylinder.
Fig. 5 is a schematic diagram of a self-generating module and an energy storage unit in the outer lock body, the self-generating module is composed of a charging rotating gear 23, a speed change accelerating gear set 24 and a micro-generator 132, and in addition, the outer lock handle 30 and the inner lock handle 40 can also be counted as a part of the self-generating module. A charging rotating gear 23 is installed on the shaft of the handle of the outer lock handle 30 and the inner lock handle, the shaft of the handle is connected with a speed change accelerating gear set 24, the speed change accelerating gear set 24 is connected with a micro-generator 132, when the handle is rotated, the charging rotating gear 23 is driven, and then the speed change accelerating gear set 24 is rotated to generate a certain rotating speed (at least 50 revolutions per second) to drive the micro-generator 132 to generate electricity. The generator output is connected to a device for storing electrical charge (i.e., the energy storage unit 133).
The energy storage unit in the embodiment of the invention is composed of the super capacitor, and the super capacitor has the advantages of short charging time, long charging and discharging cycle service life, long storage life, high reliability and the like.
The single super capacitor has limited stored energy and low withstand voltage, and the capacity expansion needs to be carried out by a series connection and parallel connection method of a plurality of super capacitors, so that the energy storage unit can store enough electric energy (at least reaching 6V and 0.5F).
Fig. 6 is a schematic structural diagram of a power management unit, which includes two parts, namely a power-on key starting circuit and a power voltage conversion circuit.
Fig. 7 is a schematic circuit diagram of a power-on key start circuit of the power management unit. The power-on starting circuit mainly comprises a D trigger U1 and a power-on key, and C _ BAT is a super capacitor output end. When the face recognition is started, the start key SW is manually pressed to generate an effective jump-up edge, so that the D trigger U1 outputs an effective level to the enabling end of the power supply voltage conversion circuit.
Fig. 8 is a schematic circuit diagram of a power supply voltage conversion circuit of the power supply management unit. The power supply voltage conversion circuit is mainly composed of a double DC/DC module AP1534, when a start key is pressed manually, two paths of DC/DC of the voltage conversion circuits U2 and U3 respectively output 1.8V and 3.3V to a face recognition module and a door lock control module for use.
The technical solutions provided by the embodiments of the present invention are described below with reference to specific data.
Firstly, power consumption of a face recognition module:
and (3) measurement is realized: the starting time of the face recognition module is 1s, the starting current is 100mA, the face recognition time is 1 s: the current is 180mA during identification, and the system is standby for 3s after successful identification, and the standby current is 5 mA.
And (3) reserving a certain allowance: the face recognition module recognizes that the average current of the primary face image is 200mA, and the time is 5 s.
Selecting rated voltage and capacitance capacity of the super capacitor:
two main applications of supercapacitors are: high power pulse application and instantaneous power conservation. According to the face recognition intelligent lock characteristic, instantaneous power is kept.
The required supercapacitor capacity is calculated according to the following formula.
Keep the required energy = the energy of the supercapacitor reduction.
Energy required during hold =1/2I (Vwork + Vmin) t;
super-capacitor reduced energy =1/2C (Vwork 2-Vmin 2),
thus, the capacity (neglecting the voltage drop caused by IR) can be found to be:
C=(Vwork+ Vmin)It/( Vwork2 -Vmin2)。
wherein,
c (F) represents the nominal capacity of the super capacitor;
r (ohms) represents the nominal internal resistance of the supercapacitor;
ESR (ohms) represents equivalent series resistance at 1 KZ;
vwork (V) represents normal operating voltage;
vmin (v) represents a cutoff operation voltage;
t(s) represents the required duration of operation in the circuit;
i (a) represents the load current.
According to the specific power consumption requirement of the face recognition intelligent lock: the power consumption is 200mA, the duration is 5s, and the minimum working voltage is 3V.
The following can be obtained: c = (5+3) × 0.2 × 5/(52-32) =8/17= 0.47F;
according to the calculation result, considering that the internal resistance of the capacitor consumes a small part of energy in the discharging process, the capacitor can be selected to be 6V and 0.5F, and the requirement can be met.
When the specific energy storage unit is designed, because the energy stored by the single super capacitor is limited and the withstand voltage is not high, the capacity expansion is needed by a corresponding series connection and/or parallel connection method, so that the index of the super capacitor is achieved.
Thirdly, calculating the charging time of the super capacitor:
the charging time of the super capacitor is calculated according to the following formula:
C×dV=I×t
wherein C represents a capacitor rated capacity; v represents the capacitor operating voltage; i represents a capacitor charging current; t represents the capacitor charging time.
Therefore, for a super capacitor with 6V and 0.5F, the charging current is 500mA, and the charging time is as follows:
t =(C×dV)/I=（0.5×6）/0.5=6s
if the charging current is chosen to be 800mA, only 3.75s is required.
Fourthly, selecting a direct current micro motor:
the direct current micro generator adopting the brushless technology has the characteristics of small volume, large generated energy, low noise, long service life and the like, and the micro generator with 3-5W, 3V, 6V, 9V rated voltage and the like exists in the prior art.
According to the charging requirement of the super capacitor, a miniature generator with 3W, 6V rated voltage and 3000rpm rotating speed can be selected to meet the charging requirement.
When the speed-changing accelerating gear set in the door lock is designed, 3-5 transmission ratios (or higher transmission ratios to achieve the required rotating speed) can be used, the generator can be driven at the rotating speed of 50rps, and the lock handle rotates in about 6 s. If a micro generator with higher power is selected, the electric quantity required by the face recognition module to finish one-time recognition can be sent out in less time.
Therefore, in the embodiment of the invention, the charging rotating gear is rotated by the lock handle to drive the gear set to generate a certain rotating speed, and the power consumption required by controlling the door lock to be unlocked can be controlled by one-time face recognition as long as the rotating speed reaches 50rps and the time is 6s-10 s.
In conclusion, the modular design of the embodiment of the invention is simple in structure and convenient to install. The power supply comprises a self-generating module, an energy storage unit and a power supply management unit, the trouble of battery replacement caused by long-term use of the door lock and power supply is solved, the handle is rotated each time to generate power, and the power is stored for identification and use each time. The self-generating module adopts a handle to rotate to drive the gear set, and the gear transmission ratio is adjusted to meet the requirement of rotating speed required by power generation; the energy storage unit adopts the super capacitor, and the number of the super capacitors in series and parallel connection can be adjusted, so that the requirements of power consumption and input voltage of the face door lock are met. The whole machine and the circuit structure are simple, and the self-generating face recognition intelligent door lock is realized.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (10)
1. The utility model provides an intelligence lock, includes the lock handle, its characterized in that, this lock still includes:
the face recognition module is used for collecting a face image of a user and authenticating the user by recognizing the face image;
the door lock control module is connected with the face recognition module and used for controlling the door lock to be unlocked when the face recognition module passes the authentication of the user;
and the power supply module is connected with the face recognition module and the door lock control module and used for generating electricity through rotation of the lock handle and storing electric energy when a user opens or closes the door lock through the lock handle, so that the face recognition module and the door lock control module can use the electric energy.
2. The door lock of claim 1, wherein the power module comprises:
the power transmission unit is connected with the lock handle and used for generating kinetic energy through the rotation of the lock handle;
the micro generator is connected with the power transmission unit and is used for converting the kinetic energy generated by the power transmission unit into electric energy;
the energy storage unit is connected with the micro generator and used for storing electric energy generated by the micro generator;
and the power management unit is connected with the energy storage unit and used for providing power for the face recognition module and the door lock control module when the door lock needs to be opened through face recognition.
3. The door lock of claim 2, wherein the power conducting unit comprises:
the charging rotating gear is positioned on the shaft of the lock handle and is driven by the lock handle to rotate;
the variable speed accelerating gear set is meshed with the charging rotating gear and rotates along with the rotation of the charging rotating gear to reach a preset rotating speed, so that the micro generator is driven to generate electricity.
4. The door lock according to claim 3, wherein the predetermined rotation speed is determined in advance according to the generation time and the generation power of the micro-generator.
5. The door lock according to claim 2, wherein the energy storage unit is formed by a plurality of super capacitors.
6. The door lock according to claim 5, wherein the plurality of super capacitors are connected in series and/or in parallel such that the energy storage unit can store a preset amount of electricity.
7. The door lock of any one of claims 2-6, wherein the power module further comprises:
and the starting key is connected with the power management unit and used for controlling the power management unit to provide power for the face recognition module and the door lock control module.
8. The door lock of claim 1, wherein the face recognition module comprises:
the image acquisition unit is used for acquiring a face image;
an image storage unit for storing a face image;
and the matching processing unit is used for matching the acquired face image with the stored face image, and triggering the door lock control module to open the door lock when the matching is successful.
9. The door lock of claim 8, wherein the face recognition module further comprises:
the registration key is used for controlling the image storage unit to store the face image acquired by the image acquisition unit;
and the deleting key is used for controlling the face image stored in the image storage unit to be deleted.
10. The door lock of claim 1, wherein the lock handle comprises an outer lock handle and an inner lock handle.
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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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| CN1730877A (en) * | 2005-08-03 | 2006-02-08 | 吴斐 | Electronic lock with flywheel self-powering apparatus |
| CN102071838A (en) * | 2010-12-24 | 2011-05-25 | 陈浩 | Self-powered intelligent lock |
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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 |
| 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 |
| CN104835230B (en) * | 2015-05-25 | 2018-07-24 | 安恒世通（北京）网络科技有限公司 | A kind of method of face control lockset |
| 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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| 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 |