CN111127713A - Intelligent door lock control system and intelligent door lock formed by same - Google Patents
Intelligent door lock control system and intelligent door lock formed by same Download PDFInfo
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- CN111127713A CN111127713A CN201911371935.XA CN201911371935A CN111127713A CN 111127713 A CN111127713 A CN 111127713A CN 201911371935 A CN201911371935 A CN 201911371935A CN 111127713 A CN111127713 A CN 111127713A
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- 238000001514 detection method Methods 0.000 claims description 4
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- 238000012545 processing Methods 0.000 claims description 2
- 238000013461 design Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 4
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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
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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
- G07C9/00563—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
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Abstract
The invention discloses an intelligent door lock control system and an intelligent door lock formed by the same, and aims to solve the problems of low integration level and poor safety of the conventional intelligent door lock. The utility model provides an intelligence lock control system, including master control safety MCU, respectively with master control safety MCU realizes fingerprint identification module, NFC identification module, bluetooth communication module, hardware of communication and prevents tearing open module, password input module, motor drive module, voice broadcast module and screen display module to and be used for the power management module of power supply. The invention not only has high function and hardware integration level, but also can effectively protect the biological characteristics of the user such as input password and personal fingerprint, the user privacy information such as unlocking record, the communication receiving and sending information and the like.
Description
Technical Field
The invention belongs to the technical field of intelligent door locks, and particularly relates to an intelligent door lock control system and an intelligent door lock formed by the same.
Background
Compared with the traditional mechanical lock, the intelligent door lock is more intelligent in the aspects of user identification, safety and manageability. The intelligent door lock product on the market at present mainly includes following technical function:
(1) the NFC card swiping function is realized, the identity information in the identification card is matched and compared with the information pre-recorded in the door lock, and the door lock is unlocked after the identity information in the identification card is successfully matched;
(2) the password input function is used for inputting a set secret key through the touch panel, carrying out identity comparison and unlocking after the identity comparison is successful;
(3) the biological identification (such as fingerprint identification) unlocking function is realized by identifying the biological characteristics (such as fingerprint) of an unlocking person, comparing the biological characteristics (such as fingerprint) with the biological characteristics (such as fingerprint) of a house owner, and unlocking after the comparison is successful;
(4) the remote recording and control functions of communication modules such as Bluetooth (Wi-Fi, NB-IoT, Lora and the like) and the like can support remote terminal equipment (such as a mobile phone and the like) to unlock, record and report a door lock state and an unlocking record, and simultaneously support remote secret key to issue unlocking, remotely control unlocking and other functions;
(5) traditional key function of unblanking.
In the prior art, the design idea for the intelligent door lock control system is as follows: and according to the functional blocks, selecting proper functional modules respectively, and splicing the functional modules through a relatively simple main control MCU to complete the design of the door lock function. The inventor of the application finds that although each functional block of the existing intelligent door lock is Jingwei and convenient for technical splicing, the technical structure still has very obvious defects:
(1) great potential safety hazard: the existing intelligent door lock control system adopts a general MCU as a main control, and the operation in the MCU, a secret key recorded on a panel, unlocking information read in NFC and information issued by a communication module are very easy to intercept and alter; on the other hand, compared with the traditional lock, the intelligent door lock has more complex functions, and the points of attack and breakthrough are increased, however, the existing intelligent door lock main board only completes the functional design, the design idea of the intelligent door lock is also a simple unlocking scheme which pursues more conveniently, more novel and more humanization, the safety guarantees of attack prevention, violence prevention and disassembly prevention and the like of the whole machine system are not fully considered, and the safety attribute of the door lock is ignored;
(2) low integration level and low cost performance: the existing intelligent door lock control system basically adopts a function splicing mode to complete the functional design of the door lock, and the technology and material redundancy is high;
(3) the industrial chain is complicated, and the industrial chain is too long: due to the splicing characteristic of the existing intelligent door lock, a traditional door lock manufacturer lacks intelligent electronic technology capability, related companies of the intelligent electronic technology lack overall control capability and channel capability of the door lock industry, and enterprises in the upstream, middle and downstream of an industry chain are small in scale, complex in supply chain and overlong in industry chain;
for those skilled in the art, the door lock is essentially a product at security level and industrial level, and all unlocking functions should fully consider security, stability and reliability, so that it is very important to develop a control system for an intelligent door lock to improve the security, stability and reliability of the intelligent door lock, and improve the overall integration of the system within a reasonable technical range.
Disclosure of Invention
The invention aims to overcome the problems and provide an intelligent door lock control system with high safety and high integration level.
The purpose of the invention is realized by the following technical scheme:
the utility model provides an intelligence lock control system, including master control safety MCU, respectively with master control safety MCU realizes fingerprint identification module, NFC identification module, bluetooth communication module, hardware of communication and prevents tearing open module, password input module, motor drive module, voice broadcast module and screen display module to and be used for the power management module of power supply.
Furthermore, the hardware anti-disassembly module comprises a hardware anti-disassembly detection circuit and a system anti-disassembly contact.
Preferably, the master control security MCU is CM4202S in model, and the chip has a financial level security encryption level, so that privacy information such as fingerprints, passwords and NFC cards of residents can be effectively protected from being attacked and acquired.
Preferably, the fingerprint identification module comprises a fingerprint sensor interface circuit, and a fingerprint identification algorithm is arranged in the master control safety MCU. The system is high in integration level, the main control security chip completes comparison and identification processing of fingerprints and serves as a main control chip of the door lock control system.
Preferably, the NFC identification module includes an NFC circuit using an NFC chip of model WS1850S and an NFC antenna.
Preferably, the bluetooth communication module comprises a bluetooth communication circuit and a bluetooth antenna which adopt a bluetooth chip (model is XC610/XC620), and the bluetooth chip is externally hung with a crystal oscillator.
Preferably, the combination lock module comprises a touch key module and/or an entity key module.
Preferably, the motor driving module comprises a motor driving circuit adopting a motor driving chip with the model of MX 612E.
Preferably, the voice broadcast module comprises an operational amplifier chip with the model number of SC 8002B.
Preferably, the screen display module comprises an OLED screen display circuit.
The invention also provides an intelligent door lock, which comprises a door lock body, the intelligent door lock control system and hardware connected with the intelligent door lock control system, wherein the hardware comprises:
the fingerprint sensor is used for fingerprint identification;
the loudspeaker is used for voice broadcasting;
a display screen;
a touch panel;
a motor;
a mechanical key;
a battery.
The invention also provides a hardware anti-dismantling method of the intelligent door lock, when the intelligent door lock is mechanically dismantled, the system anti-dismantling contact is triggered, the intelligent door lock control system gives an alarm, and meanwhile, the internal data of the main control safety MCU, including the private information of the user, such as the private fingerprint, the password, the NFC card and the like, stored in the chip are forcibly cleared.
Furthermore, when the intelligent door lock control system gives an alarm, the system is triggered to report once to record the current mechanical disassembly behavior, and if the NB-IoT and other remote communication and constant connection modules are selected, the whole system can be triggered to actively report the disassembly behavior.
Compared with the prior art, the invention has the following advantages and beneficial effects:
(1) the invention can effectively protect the user's input password, personal fingerprint and other biological characteristics, unlocking record and other user privacy information, communication receiving and sending information and the like, and compared with the prior art, the safety performance is greatly improved.
(2) The invention adopts the hardware anti-dismantling technology, and can support the financial level hardware anti-dismantling according to the customer requirements; the password keyboard can be upgraded to a financial level according to the requirements of customers, and is beneficial to high-security scenes such as public security, army and the like.
(3) The invention has high integration of hardware, can effectively reduce the manufacturing cost of the whole circuit system and optimize the supply chain of a door lock manufacturer.
(4) The invention integrates various functions of fingerprint algorithm, door lock application software, touch control, screen, sound playing and the like, and realizes high integration of the intelligent door lock system.
(5) The intelligent door lock control system uses a domestic safety chip and a national secret algorithm to realize the independence, safety and controllability of the intelligent door lock control.
(6) The invention uses the Bluetooth communication function, and if NB-IoT and other remote communication and normal connection modules are added, the whole system can be triggered to actively report the disassembly behavior, thereby further improving the real-time safety.
Drawings
FIG. 1 is a schematic diagram of the system of the present invention.
Fig. 2 is a first circuit diagram of the master security MC of the present invention.
Fig. 3 is a second circuit diagram of the master control security MC of the present invention.
Fig. 4 is a first bluetooth communication circuit according to the present invention.
Fig. 5 shows a second bluetooth communication circuit according to the present invention.
FIG. 6 is a power supply circuit of the circuit system of the present invention.
Fig. 7 shows an NFC circuit according to the present invention.
Fig. 8 is a motor circuit of the present invention.
Fig. 9 shows a horn circuit according to the present invention.
FIG. 10 shows an OLED display circuit according to the present invention.
FIG. 11 is a touch key circuit according to the present invention.
Figure 12 is a fingerprint sensor interface circuit of the present invention.
Fig. 13 is a partially enlarged view of the first schematic diagram of fig. 2.
Fig. 14 is a partially enlarged view illustrating a second view of fig. 2.
Fig. 15 is a partially enlarged schematic view three of fig. 2.
Fig. 16 is a partially enlarged view illustrating a fourth view of fig. 2.
Fig. 17 is a partially enlarged view of the first embodiment of fig. 7.
Fig. 18 is a partially enlarged view illustrating a second view of fig. 7.
Fig. 19 is a partially enlarged view illustrating a third view of fig. 7.
Detailed Description
Example 1
As shown in fig. 1-19, in order to solve the problems of low integration level and poor security in the prior art, the present embodiment provides an intelligent door lock control system, which includes a main control security MCU, a fingerprint identification module, an NFC identification module, a bluetooth communication module, a hardware anti-disassembly module, a password input module, a motor driving module, a voice broadcast module, a screen display module, and a power management module for supplying power, wherein the fingerprint identification module, the NFC identification module, the bluetooth communication module, the hardware anti-disassembly module, the password input module, the motor driving module, the voice broadcast module, the screen display module. Through the setting, with master control safety MCU as the core, on the one hand, the high integration of system hardware optimizes the supply chain of lock manufacturers, and on the other hand, the high integration of system function integrates multiple functions such as fingerprint identification, lock application, touch control, screen, sound playing and the like.
In the prior art, a general MCU is generally used as a master control unit, and internal information is easily intercepted and falsified, which results in a low overall security of the system, and for this technical problem, the embodiment preferably uses a domestic security chip-chip model CM4202S as the master control MCU of the intelligent door lock control system of this embodiment, and has the following advantages: the chip is internally provided with a CMOS-level hardware encryption algorithm which comprises a symmetric encryption algorithm and an asymmetric algorithm from the algorithm classification perspective, and comprises a hardware cryptographic algorithm from the algorithm type perspective; meanwhile, the chip also has a national secret security model, is encrypted at a financial level and is provided with an anti-attack and anti-crack physical layer. Therefore, the main control safety MCU adopted in the embodiment realizes the autonomous, safe and controllable control of the intelligent door lock.
Fingerprint identification module, NFC identification module, bluetooth communication module are used for realizing fingerprint identification function, the NFC function of punching the card, the bluetooth communication remote control function of intelligent lock respectively, and for the convenience of technical staff in the field to above-mentioned three modules have more clear understanding and understanding, explain in detail below:
the fingerprint identification module comprises a fingerprint sensor interface circuit which is matched with the fingerprint sensor for use; in this embodiment, the main control security MCU has a fingerprint recognition algorithm built therein. The master control safety MCU pin 33 is connected with the FPS _ IRQ, when the fingerprint detects that the pressing or the image collection is completed, the master control safety MCU pin communicates with the master control safety MCU through the FPS _ IRQ, wakes up the master control safety MCU in an interrupted mode, and informs the state of a system sensor. The pins 54, 55, 56, 57 are data transfer pins through which the captured fingerprint image is transferred to the system. And a pin 3 is connected with the RST _ SEN and a reset pin and is used for synchronously and mainly controlling the safety MCU and the fingerprint sensor chip.
The NFC recognition module comprises an NFC circuit and an NFC antenna which adopt an NFC chip with the model being WS1850S, the NFC chip selected in the embodiment supports a conventional NFC card and also supports ID card swiping from software, the NFC chip communicates with the master control safety MCU through an SPI interface, pins 79, 80, 81 and 82 of the master control safety MCU correspond to the interrupt signal NFC _ IRQ and the system pin 32, and the NFC state is interacted. The NFC chips TX1, TX2 and RX pins are externally connected with antennas, and external crystal oscillators are required to ensure communication. Preferably, the NFC chip and the master control safety MCU share a power supply, and in order to isolate interference of radio frequency signals to the power supply, the front end of the NFC chip is isolated by a resistance-capacitance sensor. NFC chip interrupts can wake up the master.
The Bluetooth communication module comprises a Bluetooth communication circuit and a Bluetooth antenna which adopt a Bluetooth chip (model is XC610/XC620), and the Bluetooth communication module communicates with the main control safety MCU through serial ports (UART interfaces, BT _ TX and BT _ RX signals) and is respectively connected with main control safety MCU pins 75 and 76. The Bluetooth chip interrupt BT _ INT is connected with the master control security MCU pin 30, and the reset pin BT _ RST is connected with the master control security MCU pin 60. The Bluetooth chip is provided with an antenna pin and is externally connected with a PCB (printed circuit board) onboard antenna; the chip needs to be externally connected with a crystal oscillator to ensure radio frequency communication. Bluetooth chip interrupt can awaken the master control secure MCU.
The existing intelligent door lock design is mostly focused on the functional design of the door lock, and is more novel, convenient and humanized, the safety of the door lock is ignored, the door lock is not resistant when being violently disassembled, and the safety is not referred. The hardware anti-disassembly module comprises a hardware anti-disassembly detection circuit and a system anti-disassembly contact, and is connected with a system WAKE _ UP function through a main control safety MCU pin 13 and a KB _ DOOR signal. In the door lock structure, the installed door lock signal is in a normally connected state, for example, the outside of fig. 6 is pulled up to VDD through a device P802, when a detaching action occurs, the system is awakened to alarm, and system key data such as a chip internal key and a fingerprint template are forcibly removed, so that the privacy safety of a user is ensured. Further, the module may support financial level hardware tamper resistance.
The motor driving module comprises a motor driving circuit adopting a motor driving chip (model is MX612E), and INA pins and INB pins of the motor driving chip are connected with main control safety MCU pins 86 and 85. The VOICE broadcast module includes that the chip is put to fortune (the model is SC8002B), and the DAC of master control safety MCU self-band is used in the realization of VOICE broadcast, and master control safety MCU pin 11 connects the VOICE _ PLAY function that the fortune was put, external loudspeaker broadcast sound.
The password input module realizes touch password unlocking and entity key password unlocking, comprises a touch key module (a touch key circuit) and/or an entity key module, and can be selected by a person skilled in the art according to actual requirements. The screen display module comprises an OLED screen display circuit. The system controls the screen display through the IIC interface, the SCL and the SDA of the IIC interface are respectively connected with the pins 77 and 78 of the main control safety MCU, and the LCD _ RESET is connected with the pin 68 of the main control safety MCU to realize the signal synchronization of the main control and the screen. The master control safety MCU is internally provided with touch key functions, and pins 19, 20, 21, 23, 24, 25, 27, 28, 29, 31, 34 and 36 are respectively connected with 12 channels of TK1001 to TK1012 to realize the touch key functions. Any one touch key can wake up the master control safety MCU.
Preferably, in order to better implement the function, in this embodiment, each touch key corresponds to one LED lamp, and pins P00 to P11 corresponding to the LEDs are respectively connected to pins 53, 62, 43, 63, 2, 41, 1, 42, 40, 88, 64, and 87 of the master control safety MCU.
The power management module comprises a circuit system power circuit used for supplying power to the system and managing the power, and the power of the motor driving chip is additionally processed because the needed current is larger when the motor works. Meanwhile, the system supports USB charging.
Example 2
This embodiment provides an intelligent lock, and this intelligent lock has applied the intelligent lock control system that embodiment 1 provided, and its concrete structure is as follows: the intelligent door lock comprises a door lock body, an intelligent door lock control system and hardware connected with the intelligent door lock control system. Wherein, the lock body that the lock body can adopt current intelligent lock to use, does not describe here repeatedly, and the hardware that uses with the cooperation of intelligent lock control system is including: a fingerprint sensor; a horn; a display screen; a touch panel; a motor; a mechanical key; a battery. As preferred, fingerprint sensor takes the mode of external independent fingerprint module, and this fingerprint module only contains a fingerprint sensor and necessary external circuit, and the fingerprint sensor of different models, specifications can be selected according to actual need to the technical staff in this field.
Through the arrangement, the hardware and the function of the intelligent door lock are highly integrated, the hardware structure of the intelligent door lock is optimized, and the overall safety of the intelligent door lock is improved.
Example 3
The embodiment provides a hardware anti-dismantling method for an intelligent door lock, which is applied to the intelligent door lock control system provided by the embodiment 1, when the intelligent door lock is mechanically dismantled, a trigger system anti-dismantling contact is triggered, the intelligent door lock control system gives an alarm, and meanwhile, key data in a main control safety MCU are forcibly cleared. Among these, critical data include, but are not limited to: a chip internal key, a fingerprint template, etc.
Furthermore, if the system adopts communication modes such as LORA, NB-IoT, 2/3/4G, WiFi and the like, the intelligent door lock control system can trigger one-time system reporting to record the current mechanical disassembly behavior when alarming.
As described above, the present invention can be preferably realized. The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. The utility model provides an intelligence lock control system which characterized in that: including master control safety MCU, respectively with master control safety MCU realizes fingerprint identification module, NFC identification module, bluetooth communication module, hardware of communication and prevents tearing open module, password input module, motor drive module, voice broadcast module and screen display module to and be used for the power management module of power supply.
2. The intelligent door lock control system according to claim 1, wherein: the hardware anti-disassembly module comprises a hardware anti-disassembly detection circuit and a system anti-disassembly contact.
3. The intelligent door lock control system according to claim 2, wherein: the master secure MCU has a model number CM 4202S.
4. The intelligent door lock control system according to claim 3, wherein: the fingerprint identification module comprises a fingerprint sensor interface circuit, a fingerprint identification algorithm is arranged in the master control safety MCU, the system is high in integration level, and the master control safety chip is used for finishing comparison identification processing of fingerprints and is used as a master control chip of the door lock control system.
5. The intelligent door lock control system according to claim 3, wherein: the NFC identification module comprises an NFC circuit and an NFC antenna which adopt an NFC chip.
6. The intelligent door lock control system according to claim 3, wherein: the Bluetooth communication module comprises a Bluetooth communication circuit and a Bluetooth antenna which adopt a Bluetooth chip, and the Bluetooth chip is externally hung with a crystal oscillator.
7. The intelligent door lock control system according to claim 3, wherein: the password input module comprises a touch key module and/or an entity key module.
8. The utility model provides an intelligence lock, includes the lock body, its characterized in that: the intelligent door lock control system as claimed in any one of claims 1 to 7, wherein the hardware connected with the intelligent door lock control system is as follows:
the fingerprint sensor is used for fingerprint identification;
the loudspeaker is used for voice broadcasting;
a display screen;
a touch panel;
a motor;
a mechanical key;
a battery.
9. The hardware anti-disassembly method of the intelligent door lock as claimed in claim 8, wherein when the intelligent door lock is violently disassembled, the system anti-disassembly contact is triggered, the intelligent door lock control system alarms through the hardware anti-disassembly detection circuit, and meanwhile, the internal data of the main control safety MCU is forcibly cleared.
10. The hardware anti-dismantling method according to claim 9, wherein when the intelligent door lock control system gives an alarm, the intelligent door lock control system triggers a system report to record the current violent dismantling behavior.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201911371935.XA CN111127713A (en) | 2019-12-26 | 2019-12-26 | Intelligent door lock control system and intelligent door lock formed by same |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911371935.XA CN111127713A (en) | 2019-12-26 | 2019-12-26 | Intelligent door lock control system and intelligent door lock formed by same |
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| CN111127713A true CN111127713A (en) | 2020-05-08 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112133001A (en) * | 2020-08-28 | 2020-12-25 | 北京中电华大电子设计有限责任公司 | Safety structure of intelligent door lock and design method thereof |
| CN112330852A (en) * | 2020-09-08 | 2021-02-05 | 深圳晒尔科技有限公司 | Multifunctional Internet of things door lock circuit board and Internet of things door lock device |
| CN113236045A (en) * | 2021-05-31 | 2021-08-10 | 深圳途泰科技有限公司 | Passive intelligent lock and locking and unlocking method thereof |
| CN114005197A (en) * | 2021-08-25 | 2022-02-01 | 深圳市芯智云信息技术有限公司 | High integrated system of fingerprint lock |
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| CN107301702A (en) * | 2017-06-21 | 2017-10-27 | 杭州明览智能科技有限公司 | Intelligent door lock system based on pattern code and Internet |
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| CN112133001A (en) * | 2020-08-28 | 2020-12-25 | 北京中电华大电子设计有限责任公司 | Safety structure of intelligent door lock and design method thereof |
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| CN113236045A (en) * | 2021-05-31 | 2021-08-10 | 深圳途泰科技有限公司 | Passive intelligent lock and locking and unlocking method thereof |
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