CN109184358A - Intelligent door lock system with recognition of face - Google Patents
Intelligent door lock system with recognition of face Download PDFInfo
- Publication number
- CN109184358A CN109184358A CN201811174296.3A CN201811174296A CN109184358A CN 109184358 A CN109184358 A CN 109184358A CN 201811174296 A CN201811174296 A CN 201811174296A CN 109184358 A CN109184358 A CN 109184358A
- Authority
- CN
- China
- Prior art keywords
- resistance
- operational amplifier
- module
- door lock
- intelligent door
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B49/00—Electric permutation locks; Circuits therefor ; Mechanical aspects of electronic locks; Mechanical keys therefor
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B15/00—Other details of locks; Parts for engagement by bolts of fastening devices
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B17/00—Accessories in connection with locks
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B51/00—Operating or controlling locks or other fastening devices by other non-mechanical means
-
- 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
-
- 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
- G07C9/00944—Details of construction or manufacture
Abstract
The invention discloses a kind of intelligent door lock systems with recognition of face, including intelligent door lock, image extraction unit, image authentication unit, single-chip microcontroller, audio call unit, drive module, wireless communication module, loudspeaker, LED light and power module, intelligent door lock is equipped with 3D camera, 3D camera is connect by image extraction unit with image authentication unit, and image authentication unit, audio call unit, drive module, wireless communication module, loudspeaker, LED light and power module are connect with single-chip microcontroller；Power module includes voltage input end, voltage output end, the first zener diode, the first triode, first resistor, second resistance, the first operational amplifier, second operational amplifier, the second zener diode, third diode, 3rd resistor, the 4th resistance, third operational amplifier and the 5th resistance.Circuit structure of the present invention is relatively simple, cost is relatively low, maintain easily, the safety and reliability of circuit is higher.
Description
Technical field
The present invention relates to smart home field, in particular to a kind of intelligent door lock system with recognition of face.
Background technique
Intelligent door lock system is for a set of management system in intelligent door lock, is a kind of higher peace of safety precaution rank
Anti- product.It mainly can be by utilizing computer technology, electronic technology, precision machinery manufacturing technology, accurate electromagnetic technique, intelligence
Energy card technique realizes the identification of the personnel that hold to disengaging room, and controls whether mechanical door lock is opened.Intelligent door lock system
System can identify personnel's card information of swiping the card according to authorization list, if illegal card occur or passing in and out by force, then door lock will
Sound-light alarm simultaneously forms record, it is legal card then can normal door and formed unlocking record.Moreover, its all record can all upload
To central database and pass through report query.The component that the power supply circuit of traditional intelligence door-locking system uses is more, circuit knot
Structure is complicated, and hardware cost is higher, it has not been convenient to safeguard.In addition, since the power supply circuit of traditional intelligence door-locking system lacks accordingly
Circuit protection function, such as: current-limiting protection function causes the safety and reliability of circuit poor.
Summary of the invention
The technical problem to be solved in the present invention is that in view of the above drawbacks of the prior art, provide a kind of circuit structure compared with
For simple, cost is relatively low, maintains easily, the higher intelligent door lock system with recognition of face of the safety and reliability of circuit
System.
The technical solution adopted by the present invention to solve the technical problems is: constructing a kind of intelligent door lock with recognition of face
System, including it is intelligent door lock, image extraction unit, image authentication unit, single-chip microcontroller, audio call unit, drive module, wireless
Communication module, loudspeaker, LED light and power module, the intelligent door lock are equipped with 3D camera, and the 3D camera passes through institute
Image extraction unit is stated to connect with described image authentication unit, described image authentication unit, audio call unit, drive module,
Wireless communication module, loudspeaker, LED light and power module are connect with the single-chip microcontroller；
The power module includes voltage input end, voltage output end, the first zener diode, the first triode, first
Resistance, second resistance, the first operational amplifier, second operational amplifier, the second zener diode, third diode, third electricity
Resistance, the 4th resistance, third operational amplifier and the 5th resistance, the voltage input end respectively with first zener diode
The inverting input terminal connection of anode, the collector of the first triode, the anode of third diode and the first operational amplifier, it is described
The cathode of first zener diode is connect with the base stage of first triode, the emitter ground connection of first triode, institute
The cathode for stating third diode is connect with the non-inverting input terminal of one end of the first resistor and second operational amplifier respectively, institute
State first resistor the other end ground connection, the non-inverting input terminal of first operational amplifier respectively with the second resistance one
It holds, the yin of the non-inverting input terminal of third operational amplifier, the inverting input terminal of second operational amplifier and the second zener diode
Pole connection, the plus earth of second zener diode, the other end of the second resistance respectively with the 4th resistance
One end, the 5th resistance one end connected with voltage output end, the other end of the 4th resistance respectively with the 3rd resistor
One end is connected with the inverting input terminal of third operational amplifier, the other end ground connection of the 3rd resistor, the 5th resistance
The other end is connect with the output end of the third operational amplifier, and the output end of first operational amplifier is respectively with described
The output end of two operational amplifiers is connected with the output end of third operational amplifier, the model S- of the third diode
103T。
In the intelligent door lock system of the present invention with recognition of face, the power module further includes the 6th electricity
Resistance, one end of the 6th resistance are connect with the emitter of first triode, the other end ground connection of the 6th resistance, institute
The resistance value for stating the 6th resistance is 36k Ω.
In the intelligent door lock system of the present invention with recognition of face, the power module further includes the 7th electricity
Resistance, one end of the 7th resistance connect with the non-inverting input terminal of first operational amplifier, the 7th resistance it is another
End is connect with the non-inverting input terminal of the third operational amplifier, and the resistance value of the 7th resistance is 43k Ω.
In the intelligent door lock system of the present invention with recognition of face, the power module further includes the first electricity
Hold, one end of the first capacitor connect with the output end of the second operational amplifier, the other end of the first capacitor and
The output end of the third operational amplifier connects, and the capacitance of the first capacitor is 470pF.
In the intelligent door lock system of the present invention with recognition of face, first triode is three pole of NPN type
Pipe.
In the intelligent door lock system of the present invention with recognition of face, the wireless communication module is bluetooth mould
Block, WIFI module, gsm module, GPRS module, CDMA module, CDMA2000 module, WCDMA module, TD-SCDMA module,
Zigbee module or LoRa module.
Implement the intelligent door lock system with recognition of face of the invention, has the advantages that due to being equipped with intelligence
Door lock, image extraction unit, image authentication unit, single-chip microcontroller, audio call unit, drive module, wireless communication module, loudspeaking
Device, LED light and power module；Power module includes voltage input end, voltage output end, the first zener diode, the one or three pole
Pipe, first resistor, second resistance, the first operational amplifier, second operational amplifier, the second zener diode, third diode,
3rd resistor, the 4th resistance, third operational amplifier and the 5th resistance, the power module is relative to traditional intelligence door-locking system
Power supply circuit, the component used is less, due to saving some components, can reduce hardware cost in this way, in addition, the
Three diodes are for carrying out current-limiting protection, therefore circuit structure is relatively simple, cost is relatively low, maintains easily, the safety of circuit
It is higher with reliability.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the present invention with the structural schematic diagram in intelligent door lock system one embodiment of recognition of face；
Fig. 2 is the circuit diagram of power module in the embodiment.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
In the intelligent door lock system embodiment that the present invention has recognition of face, this has the intelligent door lock system of recognition of face
The structural schematic diagram of system is as shown in Figure 1.In Fig. 1, it includes intelligent door lock 1, image that this, which has the intelligent door lock system of recognition of face,
Extraction unit 2, image authentication unit 3, single-chip microcontroller 4, audio call unit 5, drive module 6, wireless communication module 7, loudspeaker
8, LED light 9 and power module 10, wherein intelligent door lock 1 is equipped with 3D camera 11, and 3D camera 11 passes through image zooming-out list
Member 2 is connect with image authentication unit 3, and image authentication unit 3, drive module 6, wireless communication module 7, is raised audio call unit 5
Sound device 8, LED light 9 and power module 10 are connect with single-chip microcontroller 4.
Specifically, wherein the 3D photographing device 2 is set on intelligent door lock 1, before to the intelligent door lock 1
People carry out 3D and take pictures, and the 3D rendering of shooting is sent to image extraction unit 2.Image extraction unit 2 is used for from 3D rendering
Middle extraction 3D character image, and send the 3D character image of extraction to image authentication unit 3, image authentication unit 3 will receive
To 3D character image verifying is compared with preset standard 3D character image, if comparison result be it is consistent, be verified；
If comparison result is inconsistent, authentication failed.Preset standard 3D character image can according to need to be configured in advance, example
Such as user to intelligent door lock it can carry out 3D in advance and take pictures, allow user to show various postures, the user for then obtaining shooting
3D character image as preset standard 3D character image.
Preset standard 3D character image includes default face image data, default face orientation data and default human body appearance
State data；Image authentication unit 3 be used for from the 3D character image extracted extract face image data, face orientation data and
Human body attitude data, and with carried out in default face image data, default face orientation data and default human body attitude data pair
The comparison answered.Since 3D rendering has three-dimensional sense, 3D character image data can also embody the face orientation of personage
And the posture of human body, i.e., it can also include the face image data and human body attitude data of personage.
Image authentication unit 3 is also used to generate the first trigger signal when comparison result is consistent, and sends it to list
Piece machine 4, if comparison result be it is consistent, show the people currently before intelligent door lock be it is reliable, the first trigger signal is concurrent
It send to single-chip microcontroller 4, to inform that the people of 4 current shooting of single-chip microcontroller has passed through identification verifying.Single-chip microcontroller 4 is receiving the first triggering letter
Unlocking instruction is generated after number, and the unlocking instruction is sent to drive module 6, and drive module 6 is after receiving unlocking instruction, driving
Intelligent door lock 1 executes the movement unlocked, and key is taken to unlock manually without user, but directly carries out to user
The identification of 3D character image is verified, and 1 auto-unlocking of intelligent door lock is directly controlled after being verified, saves the operation of user.
When comparison result is inconsistent, image authentication unit 3 generates the second trigger signal and sends it to single-chip microcontroller
4, if comparison result be it is inconsistent, identify that verifying does not pass through, the people before showing intelligent door lock 1 is very suspicious, at this time by the
Two trigger signals are simultaneously sent to single-chip microcontroller 4 to inform that the people that single-chip microcontroller 4 is currently taken is suspicious figure.Single-chip microcontroller 4 is receiving
Alarm command is generated when to the second trigger signal, and sends it to loudspeaker 8 and LED light 9 carries out sound-light alarm.
Single-chip microcontroller 4 by alarm command by wireless communication module 7 be sent to intelligent door lock 1 user mobile terminal, it is single
The 3D character image extracted from the 3D rendering that shooting obtains can also be transmitted to the mobile terminal of user by piece machine 4 simultaneously,
Even if the suspicious figure of candid photograph is informed that user concurrent goes out to alert to realize.Above-mentioned mobile terminal can be smart phone, put down
Plate computer or PDA etc..
In the present embodiment, wireless communication module 7 can be bluetooth module, WIFI module, gsm module, GPRS module, CDMA
Module, CDMA2000 module, WCDMA module, TD-SCDMA module, Zigbee module or LoRa module etc..It is a variety of by being arranged
Communication can not only increase the flexibility of communication, moreover it is possible to meet the need of different user and different occasions
It asks.When in particular by LoRa module, farther out, and communication performance is relatively stable for communication distance, suitable for wanting to communication quality
Seek higher occasion.
Single-chip microcontroller 4 generates call instruction when receiving the second trigger signal, and sends it to audio call unit 5,
Audio call unit 5 carries out dialing alarm after receiving above-mentioned call instruction, and specifically, audio call unit 5 is by dialing
The mobile terminal of the user of intelligent door lock 1, to find suspicious figure by the user that tells by telephone in time.
Fig. 2 is the circuit diagram of power module in the present embodiment, and in Fig. 2, which includes voltage input end
Vin, voltage output end Vo, the first zener diode D1, the first triode Q1, first resistor R1, second resistance R2, the first operation
Amplifier A1, second operational amplifier A2, the second zener diode D2, third diode D3,3rd resistor R3, the 4th resistance
R4, third operational amplifier A3 and the 5th resistance R5, wherein the voltage input end Vin sun with the first zener diode D1 respectively
The inverting input terminal connection of pole, the collector of the first triode Q1, the anode of third diode D3 and the first operational amplifier A1,
The cathode of first zener diode D1 is connect with the base stage of the first triode Q1, the emitter ground connection of the first triode Q1, third
The cathode of diode D3 is connect with the non-inverting input terminal of one end of first resistor R1 and second operational amplifier A2 respectively, the first electricity
Hinder R1 the other end ground connection, the non-inverting input terminal of the first operational amplifier A1 respectively with one end of second resistance R2, third operation
The cathode of the non-inverting input terminal of amplifier A3, the inverting input terminal of second operational amplifier A2 and the second zener diode D2 connects
Connect, the plus earth of the second zener diode D2, the other end of second resistance R2 respectively with one end of the 4th resistance R4, the 5th electricity
One end of resistance R5 is connected with voltage output end Vo, and the other end that the 4th resistance holds is transported with one end of 3rd resistor R3 and third respectively
The inverting input terminal connection of amplifier A3, the other end ground connection of 3rd resistor R3 are calculated, the other end and third of the 5th resistance R5 is transported
Calculate the output end connection of amplifier A3, the output end of the first operational amplifier A1 output end with second operational amplifier A2 respectively
It is connected with the output end of third operational amplifier A3.
The power supply circuit of the power module 10 relative to traditional intelligence door-locking system, the component used is less, circuit
Structure is relatively simple, maintains easily, and due to saving some components, can reduce hardware cost in this way.In addition, the three or two pole
Pipe D3 is Current Limiting Diodes, and for carrying out current-limiting protection, therefore the safety and reliability of circuit is higher.It is noted that
In the present embodiment, the model S-103T of third diode D3, certainly, in practical applications, third diode D3 can also be adopted
There is the diode of similar functions with other models.
4th resistance R4 and 3rd resistor R3 constitutes divider, the resistance decrease of 3rd resistor R3 when temperature increases, suitably
The resistance value for choosing the 4th resistance R4 acts third operational amplifier A3 in the temperature threshold of setting；When third operation amplifier
When the non-inverting input terminal input low level of device A3, the driving signal of the output end output of third operational amplifier A3 will be blocked, by
Be in the first operational amplifier A1, second operational amplifier A2 and third operational amplifier A3 it is in parallel, no matter over-voltage, it is under-voltage,
It overheats any failure to occur, third operational amplifier A3 can export low level, and block driving signal makes power supply stop work
Make, protects circuit.
In the present embodiment, the first triode Q1 is NPN type triode, certainly, in practical applications, the first triode Q1
PNP type triode can be used, but at this moment the structure of circuit also will accordingly change.
In the present embodiment, which further includes the 6th resistance R6, one end of the 6th resistance R6 and the first triode
The emitter of Q1 connects, the other end ground connection of the 6th resistance R6.6th resistance R6 is current-limiting resistance, for the first triode Q1
Emitter current carry out current-limiting protection, to further enhance the safety and reliability of circuit.It is noted that this implementation
In example, the resistance value of the 6th resistance R6 is 36k Ω, and certainly, in practical applications, the resistance value of the 6th resistance R6 can be according to specific feelings
Condition adjusts accordingly, that is, the resistance value of the 6th resistance R6 can be increased accordingly or be reduced as the case may be.
In the present embodiment, which further includes the 7th resistance R7, and one end and the first operation of the 7th resistance R7 is put
The non-inverting input terminal connection of big device A1, the other end of the 7th resistance R7 are connect with the non-inverting input terminal of third operational amplifier A23.
7th resistance R7 is current-limiting resistance, for carrying out current-limiting protection, further to enhance the safety and reliability of circuit.It is worth
One is mentioned that, in the present embodiment, the resistance value of the 7th resistance R7 is 43k Ω, certainly, in practical applications, the resistance of the 7th resistance R7
Value can adjust accordingly as the case may be, that is, the resistance value of the 7th resistance R7 can carry out accordingly as the case may be
It increases or reduces.
In the present embodiment, which further includes first capacitor C1, and one end of first capacitor C1 is put with the second operation
The output end connection of big device A2, the other end of first capacitor C1 are connect with the output end of third operational amplifier A3.First capacitor
C1 is coupled capacitor, for preventing the interference between second operational amplifier A2 and third operational amplifier A3, further to increase
Strong anti-tampering effect.It is noted that the capacitance of first capacitor C1 is 470pF, certainly, in reality in the present embodiment
In, the capacitance of first capacitor C1 can adjust accordingly as the case may be, that is, the capacitor of first capacitor C1
Value can be increased accordingly or be reduced as the case may be.
In the present embodiment, intelligent door lock 1, image extraction unit 2, image authentication unit 3, single-chip microcontroller 4, audio call unit
5, drive module 6, loudspeaker 8 and LED light 9 are all made of the arbitrary structures that can be realized its function in the prior art, here no longer
Large fierce dog is stated.
In short, in the present embodiment, which is used
Component is less, and circuit structure is relatively simple, maintains easily, due to saving some components, can reduce in this way hardware at
This.In addition, third diode D3 is Current Limiting Diodes, for carrying out current-limiting protection, therefore the safety and reliability of circuit compared with
It is high.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (6)
1. a kind of intelligent door lock system with recognition of face, which is characterized in that including intelligent door lock, image extraction unit, figure
Picture authentication unit, single-chip microcontroller, audio call unit, drive module, wireless communication module, loudspeaker, LED light and power module,
The intelligent door lock is equipped with 3D camera, and the 3D camera passes through described image extraction unit and described image authentication unit
Connection, described image authentication unit, audio call unit, drive module, wireless communication module, loudspeaker, LED light and power supply mould
Block is connect with the single-chip microcontroller；
The power module include voltage input end, voltage output end, the first zener diode, the first triode, first resistor,
Second resistance, the first operational amplifier, second operational amplifier, the second zener diode, third diode, 3rd resistor,
Four resistance, third operational amplifier and the 5th resistance, the voltage input end respectively with the anode of first zener diode,
The inverting input terminal of the collector of first triode, the anode of third diode and the first operational amplifier connects, and described first
The cathode of zener diode is connect with the base stage of first triode, the emitter of first triode ground connection, and described the
The cathode of three diodes is connect with the non-inverting input terminal of one end of the first resistor and second operational amplifier respectively, and described
The other end of one resistance is grounded, the non-inverting input terminal of first operational amplifier respectively with one end of the second resistance, the
The cathode of the non-inverting input terminal of three operational amplifiers, the inverting input terminal of second operational amplifier and the second zener diode connects
Connect, the plus earth of second zener diode, the other end of the second resistance respectively with one end of the 4th resistance,
One end of 5th resistance is connected with voltage output end, the other end of the 4th resistance respectively with one end of the 3rd resistor and
The inverting input terminal of third operational amplifier connects, the other end ground connection of the 3rd resistor, the other end of the 5th resistance
Connect with the output end of the third operational amplifier, the output end of first operational amplifier respectively with second operation
The output end of amplifier is connected with the output end of third operational amplifier, the model S-103T of the third diode.
2. the intelligent door lock system according to claim 1 with recognition of face, which is characterized in that the power module is also
Including the 6th resistance, one end of the 6th resistance is connect with the emitter of first triode, the 6th resistance it is another
One end ground connection, the resistance value of the 6th resistance are 36k Ω.
3. the intelligent door lock system according to claim 2 with recognition of face, which is characterized in that the power module is also
Including the 7th resistance, one end of the 7th resistance is connect with the non-inverting input terminal of first operational amplifier, and the described 7th
The other end of resistance is connect with the non-inverting input terminal of the third operational amplifier, and the resistance value of the 7th resistance is 43k Ω.
4. the intelligent door lock system according to claim 3 with recognition of face, which is characterized in that the power module is also
Including first capacitor, one end of the first capacitor is connect with the output end of the second operational amplifier, the first capacitor
The other end connect with the output end of the third operational amplifier, the capacitance of the first capacitor is 470pF.
5. the intelligent door lock system according to any one of claims 1 to 4 with recognition of face, which is characterized in that institute
Stating the first triode is NPN type triode.
6. the intelligent door lock system according to any one of claims 1 to 4 with recognition of face, which is characterized in that institute
State wireless communication module be bluetooth module, WIFI module, gsm module, GPRS module, CDMA module, CDMA2000 module,
WCDMA module, TD-SCDMA module, Zigbee module or LoRa module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811174296.3A CN109184358A (en) | 2018-10-09 | 2018-10-09 | Intelligent door lock system with recognition of face |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811174296.3A CN109184358A (en) | 2018-10-09 | 2018-10-09 | Intelligent door lock system with recognition of face |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109184358A true CN109184358A (en) | 2019-01-11 |
Family
ID=64947646
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811174296.3A Pending CN109184358A (en) | 2018-10-09 | 2018-10-09 | Intelligent door lock system with recognition of face |
Country Status (1)
| Country | Link |
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| CN (1) | CN109184358A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110462693A (en) * | 2019-06-28 | 2019-11-15 | 深圳市汇顶科技股份有限公司 | Door lock and recognition methods |
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| CN110462693B (en) * | 2019-06-28 | 2022-04-22 | 深圳市汇顶科技股份有限公司 | Door lock and identification method |
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Application publication date: 20190111 |
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| RJ01 | Rejection of invention patent application after publication |