CN109377625A - A kind of intelligence authorization door lock circuit based on NB-IOT technology - Google Patents
A kind of intelligence authorization door lock circuit based on NB-IOT technology Download PDFInfo
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- CN109377625A CN109377625A CN201811407236.1A CN201811407236A CN109377625A CN 109377625 A CN109377625 A CN 109377625A CN 201811407236 A CN201811407236 A CN 201811407236A CN 109377625 A CN109377625 A CN 109377625A
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Classifications
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C9/00—Individual registration on entry or exit
- G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
- G07C9/00309—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated with bidirectional data transmission between data carrier and locks
-
- 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
- E05B47/0001—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof
- E05B47/0012—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof with rotary electromotors
-
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/3644—Constructional arrangements
- G01R31/3648—Constructional arrangements comprising digital calculation means, e.g. for performing an algorithm
-
- 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
-
- 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
- E05B2047/0048—Circuits, feeding, monitoring
-
- 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
- E05B2047/0048—Circuits, feeding, monitoring
- E05B2047/0067—Monitoring
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Lock And Its Accessories (AREA)
Abstract
The intelligence based on NB-IOT technology that the invention discloses a kind of authorizes door lock circuit, and the present invention includes a CPU module circuit, a NB-IOT chip circuit, a motor-drive circuit, a usim card circuit, 3.3V power supply circuit, a touch signal Acquisition Circuit, a module of swiping the card, a fingerprint module, a capacitance touch module；Upstream and downstream data of the present invention can obtain response in a short time, make user anywhere, as long as there is network, the unlocking record and unlocking person information of computer browser or cell phone application real time inspection door lock, door lock information about power and authorization household information can be passed through, control, long-range convenient unlocking can be implemented to the switch of door lock by webpage or cell phone application by possessing highest permission or the resident having been authorized to.
Description
Technical field
It is a kind of based on narrowband Internet of Things ((Narrow Band Internet of the invention belongs to electronic communication field
Things, NB-IOT)) technology intelligence authorization door lock circuit.
Background technique
Intelligent door lock refer to be different from tradition machinery lock on the basis of it is improved, in user security, identification, managerial side
The lockset of the more intelligent easy in face.Intelligent door lock is the execution unit locked a door in access control system.Intelligent door lock is different from biography
System mechanical lock, is with safety, convenience, the compound lockset of advanced technology.Magnetic card, radio-frequency card (non-contact class, safety
It is higher, plastic material, configuration carry it is more convenient, it is cheap) use on-mechanical key as the mature technology of user's identification id,
Such as: (bio-identification class, highly-safe, there is no lose damage for Fingerprint Lock, iris recognition access control system；But be inconvenient to configure, cost
It is high) TM card (contact class, safety is very high, stainless steel material, and configuration carries extremely convenient, and price is lower) is in the application of following place
More: bank, government department (focusing on safety) and hotel, school dormitory, residential area, villa, (it is convenient to focus in hotel
Management).According to statistics, smart lock sales volume in China's accounts for about global smart lock sales volume 30%, and is still increasing.From the point of view of global sales,
Smart lock world market smart lock industry size in 2016 reaches 11,000,000 sets.Wherein Japan reaches 1,500,000 sets, and South Korea reaches
1700000 sets, European & American Market reaches 2,500,000 sets, and China reaches 3,500,000 sets, other equal about 2,000,000 sets of markets.From the point of view of domestic market,
Domestic smart lock marketing scale reaches 3,500,000 sets within 2016, and 2017 increase to 7,000,000 sets, North China, South China Regional is concentrated on, in height
Fast growing trend, it is contemplated that 32,000,000 sets will be broken through to the year two thousand twenty intelligent door lock sales volume, the compound speedup of sales volume reached in 2016~2021 years
73.9%.Estimate smart lock industry size with average sales price, then correspond to from 2016 years 8300000000 yuan increase to 27,900,000,000 yuan in 2018
Left and right, and 2016~2021 annual compound growth rates are estimated also up to 65.2%.3,500,000 sets are about sold in smart lock sales volume in 2016,
Beginning industry enters the high speed development stage within 2016, according to statistics, until domestic intelligent permeability in 2017 still only 3% or so, hence it is evident that
It is horizontal lower than global permeability, and it is expected that future will be promoted continuously and healthily, permeability is expected to reach 19.8% to 2020.China
There are about 400,000,000 families, wherein 70% or more family is the family of three people or more, with the aggravation of aging of population and two viviparities
The relieving of policy is educated, old man, children account for population ratio and further increase, in 2015 more than 37%.And intelligent door lock is opposite
In conventional door lock, it is more suitable for the elderly and children uses, avoid the behaviors such as traditional loss key.Therefore 97% family all
In the presence of the demand for being updated to smart lock from mechanical lock, newly-increased house number will keep relatively high vigor every year in addition.According to Chinese mugwort
Auspicious consultation report is shown, under smart home popularization of knowledge, resident is up to 75% to the purchase intention of smart lock, and safety with
61.4% accounting becomes Consideration the most main when consumption purchase.Chinese 1,400,000,000 population population bases are huge, Chinese mesh
It is preceding there are about 600,000,000 fan gates, service life 10 years or so of a lock, have more than 50,000,000 lock every year and need replacing.It was limited in the past hard
The price of the factors such as part technology, production cost, smart lock can not have always been high any more, thus audient crowd be substantially focused on it is high-end small
The places such as area.Nowadays, it is highlighted along with price advantage, smart lock has gradually entered into the visual field of mass consumption.Early stage smart lock
Price is 3000~4000 yuan/, and at the beginning of 2015, it is still able to maintain 2500 yuan of price, but second half year price just drops to
2000 yuan/.Shown according to Ai Rui consultation report, about 55% consumer buy smart lock budget 1000~2999 yuan it
Between.2017, the whole unit price of smart lock was even more 1000 yuan of Gonna breakthrough/lower limit, and part brand price is even more down to 399 on line
Member/price competitiveness of 100~200 yuan compared with conventional door lock highlights.With the gradually mature and technological progress of industry, intelligence
Locking average sales price human-orientedization is trend, and by performances such as its safe and convenients, future is expected to further substitute traditional mechanical lock,
Leading role as civilian lockset market.
Smart lock is as a newborn industry, and the critical point in an introduction period and growth stage, market comsupton idea is also
It is not formed, but as what intelligent door lock marketing was popularized further implements, cultivate the use habit of consumer, smart lock city
The consumption potentiality of field is necessarily huge, and industrial prospect is bright.Just because of this, domestic outstanding smart lock manufacturing enterprise more comes
More pay attention to the research to industry market, the especially further investigation to Business Development Environment and customer demand Long-term change trend.Existing rank
A more apparent defect existing for the smart lock of section is that communication link node is excessive.Such as remote unlocking, it needs communicating
Additional plus signal relay device, issues unlocking instruction for cloud and is forwarded on door lock, such signal exists between the end and cloud of link
A node is walked during issuing or reporting more.And be not concerned about data link interior joint excessively for data transmission can
By the influence of property, safety and real-time transmission.In recent years, with the improvement of people ' s living standards and people are for intelligence
The consciousness of equipment enhances, and more and more people take a fancy to user experience and to advocate installation simple and powerful.Future becomes greatly
It will definitely be cloud on smart machine, realize end cloud one, terminal device is directly communicated with cloud, the relatively reliable stable transmission of data.
Summary of the invention
In view of the deficiencies of the prior art, the present invention proposes a kind of, and the intelligence based on NB-IOT technology authorizes door lock circuit.
A kind of intelligence authorization door lock circuit based on NB-IOT technology of the present invention, including a CPU module circuit, one
NB-IOT chip circuit, a motor-drive circuit, a usim card circuit, 3.3V power supply circuit, a touch signal acquisition
Circuit, a module of swiping the card, a fingerprint module, a capacitance touch module；The CPU module circuit includes single-chip microcontroller mould
Block circuit, single-chip microcontroller crystal oscillating circuit, single-chip microcontroller SWD interface circuit and reset circuit of SCM；The wherein model of single-chip microcontroller
STM32F103C8T6；The NB-IOT chip circuit includes that NB-IOT chip outer ring pin circuitry, NB-IOT chip inner ring draw
The voltage regulator circuit of foot circuit and NB-IOT chip；The wherein model BC95-B5 of NB-IOT chip；The usim card circuit packet
Include card slot circuit, the usim card driving circuit of usim card；The card slot model MUPC719SIM of usim card；Usim card driving chip type
Number SMF05CTC；The touch signal Acquisition Circuit includes level signal Acquisition Circuit, touches wake-up circuit；Capacitance touch mould
Block model SJ-TOUCH；
The one-chip computer module circuit includes single-chip microcontroller U1, three filter capacitors；Single-chip microcontroller U1 the 8th, 20,23,35,
44,47 feet all be grounded, single-chip microcontroller U1 the 1st, 9,24,36,48 feet all meet 3.3V power supply, the 25th filter capacitor C25
The other end connect with the 23rd foot of single-chip microcontroller U1, the 35th foot of one end of the 26th filter capacitor C26 and single-chip microcontroller U1 connect
Connect, the other end of the 27th filter capacitor C27 is connect with the 47th foot of single-chip microcontroller U1, single-chip microcontroller U1 the 10th, 11,14,15,
16,17,29,32,33,38,2,3,4,25,26,27,28,18,19,20,39,40,41,42,43,45,46 feet are hanging；
The single-chip microcontroller crystal oscillating circuit includes the crystal oscillator Y1 and 2 load capacitances of a 8MHz；
One end of crystal oscillator Y1 is connect with one end of the 5th foot of single-chip microcontroller U1, the 17th load capacitance C17, and crystal oscillator Y1's is another
One end is connect with one end of the 6th foot of single-chip microcontroller U1, the 22nd load capacitance C22, the other end of the 17th load capacitance C17
It is grounded with the other end of the 22nd load capacitance C22；
The single-chip microcontroller SWD interface circuit includes a 3.3V power supply line, a ground wire, two data lines；
The 1st foot of connector SWIM connects 3.3V power supply, the 4th foot ground connection of connector SWIM, the 2nd foot of connector SWIM with
The 37th foot of single-chip microcontroller U1 connects, and the 3rd foot of connector SWIM is connect with the 34th foot of single-chip microcontroller U1；
The reset circuit of SCM includes a resistance, a filter capacitor and a key；9th pull-up resistor
A termination 3.3V power supply of R9, the other end of the 9th pull-up resistor R9 and the 7th foot, the 12nd filter capacitor C12 of single-chip microcontroller U1
One end, key S2 one end connection, the other end ground connection of the other end of the 12nd filter capacitor C12 and key RESET；
The NB-IOT chip outer ring pin circuitry and NB-IOT chip inner ring pin circuitry include two filter capacitors,
Three resistance, an onboard antenna seat；NB-IOT chip model is BC95-B5；Onboard antenna model IPX20279-001E-
01；
One end of first filter capacitor C1 is grounded, 53 feet of a termination NB-IOT chip of another termination first resistor R1,
One end of second filter capacitor C2 is grounded, and the other end of another termination first resistor R1,1,2 feet of onboard antenna seat U7 are grounded,
3 feet of onboard antenna seat U7 connect one end of the second capacitor C2 and first resistor R1, and the 2 of NB-IOT chip BC95-B5,43,47,
48,51,52,54 ground connection；30 feet of a termination NB-IOT chip of the 18th resistance R18, the other end meet the PB11 of single-chip microcontroller U1
Pin；29 feet of a termination NB-IOT chip of the 19th resistance R19, the other end connect the PB10 pin of single-chip microcontroller U2；NB-IOT
45,46 pins of chip meet 3.3V；
NB-IOT chip；59,60,61,62,63,64,65,66,71,72,73,74,81,82,83,92,93,94 connect
Ground；
The voltage regulator circuit of the NB-IOT chip includes a zener diode, four filter capacitors；First pressure stabilizing two
Pole pipe D1 cathode connects power supply VBAT, other end ground connection；Mono- termination power VBAT of third filter capacitor C3, other end ground connection；4th
Mono- termination power VBAT of filter capacitor C4, other end ground connection；5th filter capacitor C5, mono- termination power VBAT, other end ground connection；
6th filter capacitor C6, mono- termination power VBAT, other end ground connection；
The card slot circuit of the usim card includes three resistance, four filter capacitors；The card slot model of usim card
MUPC719SIM；
7th filter capacitor C7 mono- terminates the 42nd foot of card slot the 4th foot and NB-IOT chip BC95-B5 of usim card, in addition
1st foot of the card slot of one termination usim card；8th one end filter capacitor C8 ground connection, other end connect the 6th of the card slot of usim card
Foot；9th one end filter capacitor C9 ground connection, other end connect the 3rd foot of the card slot of usim card；Tenth filter capacitor C10 mono- termination
Ground, other end connect the 2nd foot of the card slot of usim card；3rd resistor R3 mono- terminates the 2nd foot of the card slot of usim card, another termination
The 39th foot of NB-IOT chip BC95-B5；4th resistance R4 mono- terminates the 3rd foot of the card slot of usim card, another termination NB-IOT
The 41st foot of chip BC95-B5；5th resistance R5 mono- terminates the 6th foot of the card slot of usim card, another termination NB-IOT chip
The 40th foot of BC95-B5；
The usim card driving circuit, including usim card driving chip；Usim card driving chip model SMF05CTC；
The 1st pin of usim card driving chip connects the 1st pin of the card slot of usim card；The 2nd pin of usim card driving chip connects
Ground；The 4th pin of usim card driving chip connects the 6th pin of the card slot of usim card；The 5th pin of usim card driving chip connects usim card
Card slot the 3rd pin；The 6th pin of usim card driving chip connects the 2nd pin of the card slot of usim card；
The 3.3V power supply circuit includes two filter capacitors, a shunt resistance, a light emitting diode, an electricity
Source control chip；Power management chip model TPS70933；
11st filter capacitor C11 mono- terminates 3.3V other end ground connection；13rd filter capacitor C13 mono- terminates the 5V other end
Ground connection；The anode of 8th shunt resistance R8 mono- termination 3.3V other end sending and receiving optical diode；Light-emitting diodes tube anode connects the 8th point
Leakage resistance one end, minus earth；
Described is that level signal Acquisition Circuit includes six divider resistances, three mouthfuls of terminals；Tenth divider resistance R10
One termination three mouthfuls of terminals the 3rd pin, the other end connect single-chip microcontroller CPU1 the 11st pin and the 11st divider resistance R11 one
End；12nd divider resistance R12 mono- terminates the 2nd pin of three mouthfuls of terminals, and the other end connects the 5th pin and the tenth of single-chip microcontroller CPU1
One end of three divider resistance R13；15th divider resistance R15 mono- terminates the 1st pin of three mouthfuls of terminals, the 16th divider resistance
One end of R16；11st divider resistance R11 other end ground connection, the 13rd divider resistance R13 other end ground connection；16th partial pressure
Resistance R16 other end ground connection；
The touch wake-up circuit includes three diodes, a current-limiting resistance, a capacitor trigger switch；Capacitive touch
Hair switch model SJ-TOUCH；
Third diode D3 anode connects the one end on the non-ground the 11st divider resistance R11 of level signal Acquisition Circuit, and cathode connects
One end of 17th current-limiting resistance；4th diode D4 anode meets the 13rd divider resistance R13 of level signal Acquisition Circuit non-ly
One end, cathode connects one end of the 17th current-limiting resistance；5th diode D5 anode connects the 16th point of level signal Acquisition Circuit
The one end on the non-ground piezoresistance R16, cathode connect one end of the 17th current-limiting resistance；17th current-limiting resistance R17 other end ground connection；
The motor-drive circuit includes a motor drive ic；Motor drive ic model L9110S；
The 1st pin of motor drive ic connects the 2nd pin of motor control signal interface；2,3rd pin of motor drive ic
Connect 5V power supply；The 4th pin of motor drive ic connects the 1st pin of motor control signal interface；5,8th pin of motor drive ic
Ground connection；The 6th pin of motor drive ic connects the 5th pin of CPU1；The 7th pin of motor drive ic connects the 8th pin of CPU1；Electricity
The model L9110S of machine driving；
The motor control signal interface circuit includes a filter capacitor, two mouthfuls of terminals；Filter capacitor one end
1 foot of connecting terminal, 2 feet of other end connecting terminal；
The module interface circuit of swiping the card includes four mouthfuls of terminals；Module of swiping the card model radio frequency Mifare RFID
M104；
1 foot of module interface terminal of swiping the card meets 3.3V, and 2 foot of module interface terminal of swiping the card connects 2 feet of CPU1, module interface of swiping the card
3 foot of terminal connects 3 feet of CPU1,4 foot of module interface terminal of swiping the card ground connection；
The fingerprint module interface circuit includes four mouthfuls of terminals；Fingerprint module model TFS-M712；
1 foot of fingerprint module interface terminal meets 3.3V, and 2 foot of fingerprint module Interface Terminal connects 10 feet of CPU1, fingerprint mould
3 foot of block Interface Terminal connects 11 feet of CPU1,4 foot of fingerprint module interface ground connection.
The present invention includes local unlocking of swiping the card, fingerprint unlocking, door lock unlocking condition and equipment electric quantity monitoring and reports, records
And it reports and moves in the time and move in people's identity information of swiping the card, support that remote handset is unlocked, administrator can remotely award resident
Power.The present invention adopts the following technical scheme that realization goal of the invention:
(1) user card punching identity identifying and authenticating technology
The present invention can be realized user card punching identity identifying and authenticating technology, when equipment is in user information authentication work shape
State, user's card number information are read into inside CPU1 by module of swiping the card, and card number data are uploaded to server server to the card number
Information carries out authentication processing.The successful card number information of CPU1 storage inside current authentication.User card punching opens the door, and module of swiping the card is read in
Card number information, CPU1 read in card number information, carry out identification comparison to card number using card using information recognizer, which can
It is obtained a result with handling user information rapidly.Anti-tampering ability is strong.
(2) user fingerprints information identifies authentication techniques
The present invention can be realized user fingerprints information identification authentication techniques, when equipment is in user fingerprints information certification work
State.User fingerprints information is fingerprint sequence number by fingerprint module output, and fingerprint sequence is read into inside CPU1, using fingerprint
Fingerprint sequence number is encrypted in Information Encryption Algorithm technology.Encrypted data storage is into CPU1 memory.User's brush
Fingerprint opens the door, and fingerprint module exports fingerprint sequence number, and CPU1 reads in fingerprint sequence number, using finger-print cipher decipherment algorithm and refers to
Processing is compared to finger-print cipher in line information matches algorithm, obtains comparison result rapidly.The highly reliable guarantor of the encryption-decryption algorithm
Protect user fingerprints information, strong antijamming capability.
(3) subscriber identity information (fingerprint+card number) block encryption memory technology
The present invention can be realized subscriber identity information (fingerprint+badge) block encryption memory technology, when equipment is in user
(card number) authentification of message working condition, user's card number information are read into inside CPU1 by module of swiping the card, and card number data are uploaded to
Server server carries out authentication processing to the card number information.CPU1 card number information memory stores the successful card number of current authentication
Information.When equipment is in user (fingerprint) authentification of message working condition, user fingerprints information is fingerprint by fingerprint module output
Sequence number, fingerprint sequence are read into inside CPU1, are carried out at encryption using finger print information Encryption Algorithm technology to fingerprint sequence number
Reason.Encrypted data storage is into CPU1 finger print information memory.
(4) unlocking condition and equipment electric quantity monitoring technology
The present invention being capable of comprehensive monitoring door interlock switch state, equipment current residual electricity.There are limit sensors inside lock box,
Limit sensors are triggered when door handle is moved, outputs level signals give CPU1 signal acquisition terminal.It is successfully grasped every time inside CPU1
Make a door lock, records a door interlock switch state and combine the signal for reading in the limit sensors come at this time, determine that door lock is worked as
Preceding state.AD reads equipment and inputs electricity inside CPU1, is handled after AD conversion by CPU1 internal data, show that present battery is surplus
Remaining electricity.
(5) narrowband technology of Internet of things
Invention introduces narrowband technology of Internet of things for realizing long-range cloud and equipment room data interaction, uses NB-
IOT chip BC95-B5.
Beneficial effect: the present invention provides a good scheme to solve remote unlocking.It can keep with base station
Connection, the registration of NB-IOT node device is primary, is successfully connected after base station data is uploaded to cloud, cloud saves NB-IOT equipment
Access information effectively connect with current device holding, and establishes a stable data transmission link.Upstream and downstream data are all
Response can be obtained in a short time, makes user anywhere, as long as there is network, so that it may pass through computer browser or hand
The unlocking record and unlocking person information of machine APP real time inspection door lock, door lock information about power and authorization household information, possess highest
Permission or the resident having been authorized to can implement control to the switch of door lock by webpage or cell phone application, remotely convenient to open
Lock.
Detailed description of the invention
Fig. 1 is circuit structure diagram of the invention；
Fig. 2 (a) is 1 module circuit schematic of singlechip CPU of the invention；
Fig. 2 (b) is 1 crystal oscillating circuit schematic diagram of singlechip CPU of the invention；
Fig. 2 (c) is the SWD interface circuit schematic diagram of singlechip CPU 1 of the invention；
Fig. 2 (d) is the reset circuit schematic diagram of singlechip CPU 1 of the invention；
Fig. 3 (a) is NB-IOT chip outer ring pin circuitry schematic diagram of the invention；
Fig. 3 (b) is NB-IOT chip inner ring pin circuitry schematic diagram of the invention；
Fig. 3 (c) is the voltage regulator circuit schematic diagram of NB-IOT chip of the invention；
Fig. 4 (a) is the card slot circuit diagram of usim card of the invention；
Fig. 4 (b) is usim card driver circuit schematic diagram of the invention；
Fig. 5 is 3.3V power supply circuit schematic diagram of the present invention；
Fig. 6 is level signal Acquisition Circuit schematic diagram of the invention；
Fig. 7 is touch wake-up circuit schematic diagram of the invention；
Fig. 8 is motor-drive circuit schematic diagram of the invention；
Fig. 9 is motor control signal interface circuit schematic diagram of the invention；
Figure 10 is module interface circuit schematic diagram of swiping the card of the invention；
Figure 11 is fingerprint module interface circuit schematic diagram of the invention；
Figure 12 is software flow pattern of the invention；
Specific embodiment
With reference to the accompanying drawing to further detailed description of the invention.
As shown in Figure 1, a kind of intelligence authorization door lock circuit based on NB-IOT technology, including CPU module circuit, one
A NB-IOT chip circuit, a motor-drive circuit, a usim card circuit, 3.3V power supply circuit, a touch signal are adopted
Collector, a module of swiping the card, a fingerprint module, a capacitance touch module.
Card number data are collected by module of swiping the card, CPU1 collects card number information, the card number data with CPU1 storage inside
Information carries out, and compares through output motor driving signal to motor drive ic L9110 driving motor.It is adopted by fingerprint module
Collect fingerprint sequence number, CPU1 collects fingerprint sequence number and is encrypted, and CPU1 passes through recognizer for encrypted finger
Line sequence is compared with the cryptographic fingerprint sequence of storage inside, compares through output motor driving signal to motor drive ic
L9110 driving motor.CPU1, which records door lock state and equipment information about power and is packaged, is transferred to NB-IOT chip BC95-B5,
NB-IOT chip BC95-B5 transmits data to distal end Web door lock management system.Web door lock management system authorized user's card number,
Authorization card number information is sent to be stored in local password library after receiving card number data encryption to NB-IOT chip BC95-B5, CPU1.
Long-range to issue switch lock instruction to door lock by Web or mobile phone terminal APP, command information is sent to NB-IOT chip BC95-B5,
Capacitance touch module is touched, CPU1 reads NB-IOT chip BC95-B5 cache instruction data and carries out switch lock operation.
The CPU module circuit includes one-chip computer module circuit, single-chip microcontroller U1 crystal oscillating circuit, single-chip microcontroller SWD interface electricity
Road and reset circuit of SCM.The wherein model STM32F103C8T6 of single-chip microcontroller U1.
The NB-IOT chip circuit includes NB-IOT chip outer ring pin circuitry, NB-IOT chip inner ring pin electricity
Road, the voltage regulator circuit of NB-IOT chip.The wherein model BC95-B5 of NB-IOT chip.
The usim card circuit includes the card slot circuit of usim card, usim card driving circuit.The card slot model of usim card
MUPC719SIM；Usim card driving chip model SMF05CTC.
The touch signal Acquisition Circuit includes level signal Acquisition Circuit, touches wake-up circuit.Capacitance touch module
Model SJ-TOUCH.
As shown in Fig. 2 (a), the one-chip computer module circuit includes single-chip microcontroller U1, three filter capacitors.Single-chip microcontroller U1's
8th, 20,23,35,44,47 feet whole ground connection, the 1st, 9,24,36, the 48 foot whole 3.3V power supplys of single-chip microcontroller U1, the 25th
The other end of filter capacitor C25 is connect with the 23rd foot of single-chip microcontroller U1, one end of the 26th filter capacitor C26 and single-chip microcontroller U1
The connection of the 35th foot, the other end of the 27th filter capacitor C27 connect with the 47th foot of single-chip microcontroller U1, the of single-chip microcontroller U1
10、11、14、15、16、17、29、32、33、38、2、3、4、25、26、27、28、18、19、20、39、40、41、42、43、45、46
Foot is hanging.
As shown in Fig. 2 (b), the single-chip microcontroller U1 crystal oscillating circuit includes the crystal oscillator Y1 and 2 load capacitances of a 8MHz；
One end of crystal oscillator Y1 is connect with one end of the 5th foot of single-chip microcontroller U1, the 17th load capacitance C17, and crystal oscillator Y1's is another
One end is connect with one end of the 6th foot of single-chip microcontroller U1, the 22nd load capacitance C22, the other end of the 17th load capacitance C17
It is grounded with the other end of the 22nd load capacitance C22.
As shown in Fig. 2 (c), the SWD interface circuit of the single-chip microcontroller U1 includes a 3.3V power supply line, a ground wire,
Two data lines.
The 1st foot of connector SWIM connects 3.3V power supply, the 4th foot ground connection of connector SWIM, the 2nd foot of connector SWIM with
The 37th foot of single-chip microcontroller U1 connects, and the 3rd foot of connector SWIM is connect with the 34th foot of single-chip microcontroller U1.
As shown in Fig. 2 (d), the single-chip microcontroller U1 reset circuit is pressed including a resistance, a filter capacitor and one
Key.The 7th foot of a termination 3.3V power supply of 9th pull-up resistor R9, the other end of the 9th pull-up resistor R9 and single-chip microcontroller U1, the
One end connection of one end of 12 filter capacitor C12, key S2, the other end of the 12nd filter capacitor C12 and key RESET's
Other end ground connection.
As shown in Fig. 3 (a), the NB-IOT chip outer ring pin circuitry includes two filter capacitors, three resistance, one
A onboard antenna seat.NB-IOT chip model is BC95-B5；Onboard antenna model IPX20279-001E-01；
One end of first filter capacitor C1 is grounded, 53 feet of a termination BC95 of another termination first resistor R1, the second filter
One end of wave capacitor C2 is grounded, and the other end of another termination first resistor R1,1,2 feet of antenna pedestal U7 are grounded, and 3 feet connect the second electricity
Hold one end of C2 and first resistor R1,2,43,47,48,51,52,54 ground connection of NB-IOT chip BC95-B5.18th resistance
30 feet of a termination BC95-B5 of R18, the other end connect the PB11 pin of single-chip microcontroller U1.A termination of 19th resistance R19
29 feet of BC95-B5, the other end connect the PB10 pin of single-chip microcontroller U2.45,46 pins of BC95-B5 meet 3.3V.
As shown in Fig. 3 (b), the NB-IOT chip inner ring pin circuitry.59,60,61,62,63,64,65,66,71,
72,73,74,81,82,83,92,93,94 ground connection.
As shown in Fig. 3 (c), the voltage regulator circuit of the NB-IOT chip includes a zener diode, four filtered electricals
Hold.First zener diode D1 cathode connects power supply VBAT, other end ground connection.Mono- termination power VBAT of third filter capacitor C3, separately
One end ground connection.4th filter capacitor C4, mono- termination power VBAT, other end ground connection.5th filter capacitor C5, mono- termination power
VBAT, other end ground connection.6th filter capacitor C6, mono- termination power VBAT, other end ground connection.
As shown in Fig. 4 (a), the card slot circuit of the usim card includes three resistance, four filter capacitors.Usim card
Card slot model MUPC719SIM.
7th filter capacitor C7 mono- terminates the 42nd foot of card slot the 4th foot and NB-IOT chip BC95-B5 of usim card, in addition
1st foot of the card slot of one termination usim card.8th one end filter capacitor C8 ground connection, other end connect the 6th of the card slot of usim card
Foot.9th one end filter capacitor C9 ground connection, other end connect the 3rd foot of the card slot of usim card.Tenth filter capacitor C10 mono- termination
Ground, other end connect the 2nd foot of the card slot of usim card.3rd resistor R3 mono- terminates the 2nd foot of the card slot of usim card, another termination
The 39th foot of BC95-B5.4th resistance R4 mono- terminates the 3rd foot of the card slot of usim card, the 41st foot of another termination BC95-B5.
5th resistance R5 mono- terminates the 6th foot of the card slot of usim card, the 40th foot of another termination BC95-B5.
It is described for usim card driving circuit of the invention as shown in Fig. 4 (b).Usim card driving chip model
SMF05CTC。
The 1st pin of usim card driving chip connects the 1st pin of the card slot of usim card.The 2nd pin of usim card driving chip connects
Ground.The 4th pin of usim card driving chip connects the 6th pin of the card slot of usim card.The 5th pin of usim card driving chip connects usim card
Card slot the 3rd pin.The 6th pin of usim card driving chip connects the 2nd pin of the card slot of usim card.
As shown in figure 5, the 3.3V power supply circuit includes two filter capacitors, a shunt resistance, one luminous two
Pole pipe, a power management chip.Power management chip model TPS70933.
11st filter capacitor C11 mono- terminates 3.3V other end ground connection.13rd filter capacitor C13 mono- terminates the 5V other end
Ground connection.The anode of 8th shunt resistance R8 mono- termination 3.3V other end sending and receiving optical diode.Light-emitting diodes tube anode connects the 8th point
Leakage resistance one end, minus earth.
As shown in fig. 6, described include six divider resistances, three mouthfuls of terminals for level signal Acquisition Circuit.Tenth
Divider resistance R10 mono- terminates the 3rd pin of three mouthfuls of terminals, and the other end connects the 11st pin and the 11st partial pressure electricity of single-chip microcontroller CPU1
Hinder one end of R11.12nd divider resistance R12 mono- terminates the 2nd pin of three mouthfuls of terminals, and the other end connects the 5th of single-chip microcontroller CPU1
One end of pin and the 13rd divider resistance R13.1st pin of the 15th divider resistance R15 mono- three mouthfuls of terminals of termination, the 16th
One end of divider resistance R16.11st divider resistance R11 other end ground connection, the 13rd divider resistance R13 other end ground connection.The
16 divider resistance R16 other ends ground connection.
As shown in fig. 7, the touch wake-up circuit includes three diodes, a current-limiting resistance, a capacitor trigger
Switch.Capacitor trigger switchs model SJ-TOUCH.
Third diode D3 anode connects the one end on the non-ground the 11st divider resistance R11 of level signal Acquisition Circuit, and cathode connects
One end of 17th current-limiting resistance.4th diode D4 anode meets the 13rd divider resistance R13 of level signal Acquisition Circuit non-ly
One end, cathode connects one end of the 17th current-limiting resistance.5th diode D5 anode connects the 16th point of level signal Acquisition Circuit
The one end on the non-ground piezoresistance R16, cathode connect one end of the 17th current-limiting resistance.17th current-limiting resistance R17 other end ground connection.
As shown in figure 8, the motor-drive circuit includes a motor drive ic.Motor drive ic model
L9110S；
The 1st pin of motor drive ic connects the 2nd pin of motor control signal interface.2,3rd pin of motor drive ic
Connect 5V power supply.The 4th pin of motor drive ic connects the 1st pin of motor control signal interface.5,8th pin of motor drive ic
Ground connection.The 6th pin of motor drive ic connects the 5th pin of CPU1.The 7th pin of motor drive ic connects the 8th pin of CPU1.Electricity
The model L9110S of machine driving.
As shown in figure 9, the motor control signal interface circuit includes a filter capacitor, two mouthfuls of terminals.Filter
1 foot of wave capacitor one end connecting terminal, 2 feet of other end connecting terminal.
As shown in Figure 10, the module interface circuit of swiping the card includes four mouthfuls of terminals.Module of swiping the card model radio frequency
Mifare RFID M104；
1 foot of module interface terminal of swiping the card meets 3.3V, and 2 foot of module interface terminal of swiping the card connects 2 feet of CPU1, module interface of swiping the card
3 foot of terminal connects 3 feet of CPU1,4 foot of module interface terminal of swiping the card ground connection.
As shown in figure 11, the fingerprint module interface circuit includes four mouthfuls of terminals.Fingerprint module model TFS-
M712；
1 foot of fingerprint module interface terminal meets 3.3V, and 2 foot of fingerprint module Interface Terminal connects 10 feet of CPU1, fingerprint mould
3 foot of block Interface Terminal connects 11 feet of CPU1,4 foot of fingerprint module interface ground connection.
As shown in figure 12, the course of work of the intelligence authorization door-locking system based on NB-IOT technology is as follows: after powering on, monolithic
Machine CPU1 (i.e. single-chip microcontroller U1) carry out system initialization, then BC95-B5 carry out network configuration initialization, network configuration success into
Enter model selection link.Selection enters user information typing mode, and singlechip CPU 1 reads card number, carries out card number information encryption simultaneously
It is stored.Current typing user information is uploaded to cloud after storing successfully.When typing finger print information, singlechip CPU 1
Finger print information is read, finger print information encryption and storage are then carried out.Selection enters operating mode, and user can swipe the card and brush finger
Line, singlechip CPU 1 read card using information or finger print information, carry out identity information certification.It is single when user information authentication passes through
Piece machine CPU1 drives door-lock motor to unlock, and singlechip CPU 1 reads current door lock state and equipment remaining capacity information, is packaged hair
It send to cloud.Door lock state and equipment remaining capacity transition information can be sent to BC95-B5 by CPU1 in time by equipment
Then it is uploaded to cloud, to realize the function that data report, end user can look by computer browser or cell phone application
See the Real-Time Switch status information of current family door lock and the identity information for the people that swipes the card.User can also pass through computer browser
Or cell phone application carries out remote switch door lock.Visitor's visit, user are remotely issued out by computer browser or cell phone application
Lock, capacitor trigger switch implantation door handle, visitor hold door lock wake-up door lock and directly unlock.
Hardware operation logic, the power supply of plank battery, plank power supply circuit transformation export 3.3V, give single-chip microcontroller, NB-IOT core
Piece BC95-B5, usim card, fingerprint module, module of swiping the card, capacitor trigger switch, motor drive ic power supply.It swipes the card, fingerprint mould
Block is connect with single-chip microcontroller U1 serial ports, and when swiping the card or finger print data is read in, single-chip microcontroller U1 is read in by serial ports.Usim card with
BC95-B5 carries out data interaction and completes communication.BC95-B5 is connect with single-chip microcontroller U1 by serial ports, and microcontroller serial port hair data are matched
It sets BC95-B5 completion networking and establishes stabilizing network channel, complete uplink and downlink data.Capacitor trigger switch, motor drive ic with
The I/O port of single-chip microcontroller U1 connects.Single-chip microcontroller U1 reads capacitor trigger switch level signal by I/O port in real time, judges whether someone
Touch door handle.It swipes the card, password, one of them is proved to be successful remote unlocking, two I/O port output low and high level letters of single-chip microcontroller U1
Number driving motor driving chip controls motor execution.
Above description is not the limitation to invention, and the present invention is also not limited to the example above, the common skill of the art
The variations, modifications, additions or substitutions that art personnel are made within the essential scope of the present invention also belong to protection model of the invention
It encloses.
Claims (1)
1. a kind of intelligence authorization door lock circuit based on NB-IOT technology, it is characterised in that: including CPU module circuit, one
A NB-IOT chip circuit, a motor-drive circuit, a usim card circuit, 3.3V power supply circuit, a touch signal are adopted
Collector, a module of swiping the card, a fingerprint module, a capacitance touch module；The CPU module circuit includes single-chip microcontroller
Modular circuit, single-chip microcontroller crystal oscillating circuit, single-chip microcontroller SWD interface circuit and reset circuit of SCM；The wherein model of single-chip microcontroller
STM32F103C8T6；The NB-IOT chip circuit includes that NB-IOT chip outer ring pin circuitry, NB-IOT chip inner ring draw
The voltage regulator circuit of foot circuit and NB-IOT chip；The wherein model Quecte1NB-IOTBC95 of NB-IOT chip；Described
Usim card circuit includes the card slot circuit of usim card, usim card driving circuit；The card slot model MUPC719SIM of usim card；USIM
Card driving chip model SMF05CTC；The touch signal Acquisition Circuit includes level signal Acquisition Circuit, touches wake-up electricity
Road；Capacitance touch module model SJ-TOUCH；
The one-chip computer module circuit includes single-chip microcontroller U1, three filter capacitors；Single-chip microcontroller U1 the 8th, 20,23,35,44,
47 feet all be grounded, single-chip microcontroller U1 the 1st, 9,24,36,48 feet all connect 3.3V power supply, the 25th filter capacitor C25's is another
One end is connect with the 23rd foot of single-chip microcontroller U1, and one end of the 26th filter capacitor C26 is connect with the 35th foot of single-chip microcontroller U1, the
The other end of 27 filter capacitor C27 is connect with the 47th foot of single-chip microcontroller U1, single-chip microcontroller U1 the 10th, 11,14,15,16,
17,29,32,33,38,2,3,4,25,26,27,28,18,19,20,39,40,41,42,43,45,46 feet are hanging；
The single-chip microcontroller crystal oscillating circuit includes the crystal oscillator Y1 and 2 load capacitances of a 8MHz；
One end of crystal oscillator Y1 is connect with one end of the 5th foot of single-chip microcontroller U1, the 17th load capacitance C17, the other end of crystal oscillator Y1
It is connect with one end of the 6th foot of single-chip microcontroller U1, the 22nd load capacitance C22, the other end of the 17th load capacitance C17 and
The other end of 22 load capacitance C22 is grounded；
The single-chip microcontroller SWD interface circuit includes a 3.3V power supply line, a ground wire, two data lines；
The 1st foot of connector SWIM connects 3.3V power supply, the 4th foot ground connection of connector SWIM, the 2nd foot and monolithic of connector SWIM
The 37th foot of machine U1 connects, and the 3rd foot of connector SWIM is connect with the 34th foot of single-chip microcontroller U1；
The reset circuit of SCM includes a resistance, a filter capacitor and a key；9th pull-up resistor R9's
The one of the 7th foot of one termination 3.3V power supply, the other end of the 9th pull-up resistor R9 and single-chip microcontroller U1, the 12nd filter capacitor C12
One end connection at end, key S2, the other end of the 12nd filter capacitor C12 and the other end ground connection of key RESET；
The NB-IOT chip outer ring pin circuitry and NB-IOT chip inner ring pin circuitry includes two filter capacitors, three
Resistance, an onboard antenna seat；NB-IOT chip model is BC95-B5 chip；Onboard antenna model IPX20279-001E-
01；
One end of first filter capacitor C1 is grounded, 53 feet of a termination NB-IOT chip of another termination first resistor R1, second
One end of filter capacitor C2 is grounded, and the other end of another termination first resistor R1,1,2 feet of onboard antenna seat U7 are grounded, onboard
3 feet of antenna pedestal U7 connect one end of the second capacitor C2 and first resistor R1, and the 2 of NB-IOT chip NB-IOT chip, 43,47,48,
51,52,54 ground connection；30 feet of a termination NB-IOT chip of the 18th resistance R18, the PB11 that the other end meets single-chip microcontroller U1 draw
Foot；29 feet of a termination NB-IOT chip of the 19th resistance R19, the other end connect the PB10 pin of single-chip microcontroller U2；NB-IOT core
45,46 pins of piece meet 3.3V；
NB-IOT chip；59,60,61,62,63,64,65,66,71,72,73,74,81,82,83,92,93,94 ground connection；
The voltage regulator circuit of the NB-IOT chip includes a zener diode, four filter capacitors；First zener diode
D1 cathode connects power supply VBAT, other end ground connection；Mono- termination power VBAT of third filter capacitor C3, other end ground connection；4th filtering
Mono- termination power VBAT of capacitor C4, other end ground connection；5th filter capacitor C5, mono- termination power VBAT, other end ground connection；6th
Mono- termination power VBAT of filter capacitor C6, other end ground connection；
The card slot circuit of the usim card includes three resistance, four filter capacitors；The card slot model of usim card
MUPC719SIM；
7th filter capacitor C7 mono- terminates the 42nd foot of card slot the 4th foot and NB-IOT chip module of usim card, and other end connects
1st foot of the card slot of usim card；8th one end filter capacitor C8 ground connection, other end connect the 6th foot of the card slot of usim card；9th
The one end filter capacitor C9 ground connection, other end connect the 3rd foot of the card slot of usim card；Tenth one end filter capacitor C10 ground connection, in addition
2nd foot of the card slot of one termination usim card；3rd resistor R3 mono- terminates the 2nd foot of the card slot of usim card, another termination NB-IOT
39th foot of chip NB-IOT chip module；4th resistance R4 mono- terminates the 3rd foot of the card slot of usim card, another termination NB-IOT
41st foot of chip NB-IOT chip module；5th resistance R5 mono- terminates the 6th foot of the card slot of usim card, another termination NB-IOT
40th foot of chip NB-IOT chip module；
The usim card driving circuit, including usim card driving chip；Usim card driving chip model SMF05CTC；
The 1st pin of usim card driving chip connects the 1st pin of the card slot of usim card；The 2nd pin of usim card driving chip ground connection；
The 4th pin of usim card driving chip connects the 6th pin of the card slot of usim card；The 5th pin of usim card driving chip connects usim card
3rd pin of card slot；The 6th pin of usim card driving chip connects the 2nd pin of the card slot of usim card；
The 3.3V power supply circuit includes two filter capacitors, a shunt resistance, a light emitting diode, a power supply pipe
Manage chip；Power management chip model TPS70933；
11st filter capacitor C11 mono- terminates 3.3V other end ground connection；13rd filter capacitor C13 mono- terminates another termination of 5V
Ground；The anode of 8th shunt resistance R8 mono- termination 3.3V other end sending and receiving optical diode；Light-emitting diodes tube anode connects the 8th shunting
Resistance one end, minus earth；
Described is that level signal Acquisition Circuit includes six divider resistances, three mouthfuls of terminals；Tenth one end divider resistance R10
The 3rd pin of three mouthfuls of terminals is connect, the other end connects one end of the 11st pin and the 11st divider resistance R11 of single-chip microcontroller CPU1；The
12 divider resistance R12 mono- terminate three mouthfuls of terminals the 2nd pin, the other end connect single-chip microcontroller CPU1 the 5th pin and the 13rd point
One end of piezoresistance R13；15th divider resistance R15 mono- terminates the 1st pin of three mouthfuls of terminals, the 16th divider resistance R16's
One end；11st divider resistance R11 other end ground connection, the 13rd divider resistance R13 other end ground connection；16th divider resistance
R16 other end ground connection；
The touch wake-up circuit includes three diodes, a current-limiting resistance, a capacitor trigger switch；Capacitor trigger is opened
Close model SJ-TOUCH；
Third diode D3 anode connects the one end on the non-ground the 11st divider resistance R11 of level signal Acquisition Circuit, and cathode connects the tenth
One end of seven current-limiting resistances；4th diode D4 anode meets the one of the non-ground the 13rd divider resistance R13 of level signal Acquisition Circuit
End, cathode connect one end of the 17th current-limiting resistance；5th diode D5 anode connects the partial pressure electricity of level signal Acquisition Circuit the 16th
The one end on the non-ground R16 is hindered, cathode connects one end of the 17th current-limiting resistance；17th current-limiting resistance R17 other end ground connection；
The motor-drive circuit includes a motor drive ic；Motor drive ic model L9110S；
The 1st pin of motor drive ic connects the 2nd pin of motor control signal interface；2,3rd pin of motor drive ic meets 5V
Power supply；The 4th pin of motor drive ic connects the 1st pin of motor control signal interface；5,8th pin of motor drive ic connects
Ground；The 6th pin of motor drive ic connects the 5th pin of CPU1；The 7th pin of motor drive ic connects the 8th pin of CPU1；Motor
The model L9110S of driving；
The motor control signal interface circuit includes a filter capacitor, two mouthfuls of terminals；One termination end of filter capacitor
1 foot of son, 2 feet of other end connecting terminal；
The module interface circuit of swiping the card includes four mouthfuls of terminals；Module of swiping the card model radio frequency Mifare RFID
M104；
1 foot of module interface terminal of swiping the card meets 3.3V, and 2 foot of module interface terminal of swiping the card connects 2 feet of CPU1, module interface terminal of swiping the card
3 feet connect 3 feet of CPU1,4 foot of module interface terminal of swiping the card ground connection；
The fingerprint module interface circuit includes four mouthfuls of terminals；Fingerprint module model TFS-M712；
1 foot of fingerprint module interface terminal meets 3.3V, and 2 foot of fingerprint module Interface Terminal connects 10 feet of CPU1, and fingerprint module connects
Mouth 3 foot of terminal connects 11 feet of CPU1,4 foot of fingerprint module interface ground connection.
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| CN111624476A (en) * | 2020-07-30 | 2020-09-04 | 四川金网通电子科技有限公司 | Automatic testing method for fingerprint lock board with OLED screen |
| CN112907793A (en) * | 2021-03-26 | 2021-06-04 | 李双宁 | STM32F4 intelligent door lock based on MQTT protocol |
| CN113668960A (en) * | 2021-10-21 | 2021-11-19 | 山东艾琳智能科技有限公司 | Dual-drive electric control system of intelligent lock |
| CN113668960B (en) * | 2021-10-21 | 2022-03-11 | 山东艾琳智能科技有限公司 | Dual-drive electric control system of intelligent lock |
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