CN113362501A - Intelligent lock system based on Internet of things - Google Patents
Intelligent lock system based on Internet of things Download PDFInfo
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- CN113362501A CN113362501A CN202110636606.4A CN202110636606A CN113362501A CN 113362501 A CN113362501 A CN 113362501A CN 202110636606 A CN202110636606 A CN 202110636606A CN 113362501 A CN113362501 A CN 113362501A
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- 238000004891 communication Methods 0.000 claims description 62
- 238000001514 detection method Methods 0.000 claims description 30
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 10
- 229910052744 lithium Inorganic materials 0.000 claims description 10
- 230000006855 networking Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 8
- 238000012423 maintenance Methods 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 6
- 230000009471 action Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000006399 behavior Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003306 harvesting Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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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
- G07C9/00571—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by interacting with a central unit
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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
- G07C9/00944—Details of construction or manufacture
-
- 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
- G07C2009/00634—Power supply for the lock
- G07C2009/00642—Power supply for the lock by battery
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Manufacturing & Machinery (AREA)
- Lock And Its Accessories (AREA)
Abstract
The invention discloses an intelligent lock system based on the Internet of things. The intelligent lock system can realize the following functions: the method comprises the steps of communicating with a server in real time, controlling the lock to be opened and closed, detecting the state of the lock, detecting the residual electric quantity of a battery, obtaining the information of the geographical position of the lock, and prompting the opening and closing information and the electric quantity information of the battery of the lock. The intelligent lock system is simple in structure and strong in expansibility, can be used for informatization management of places such as an electric power cabinet, a safety box, a safety door and an equipment room, and has the advantage that more intelligent and convenient maintenance management can be realized compared with the traditional mechanical lock.
Description
Technical Field
The invention relates to an intelligent lock, in particular to an intelligent lock system based on the Internet of things.
Background
The intelligent lock is a novel lock combining multiple technologies, such as an integrated circuit technology, a sensor detection technology, a wireless communication technology and the like. Along with the development of intelligent house, various intelligence lock phases are born successively, not only can be as the mode of unblanking through fingerprint, vision etc. can unblank through cell-phone client long-range unblanking moreover, have brought very big convenience for people's life.
However, most of the existing base stations or indoor and outdoor equipment cabinets of the power system still use the traditional mechanical locks, managers need to manage keys of the mechanical locks in a classified mode, and once the keys are lost, the equipment can be stolen and damaged. The intelligent lock reduces the dependence of people on keys, can be unlocked by using equipment which can be connected to the internet, such as a mobile phone, a tablet and the like, supports remote unlocking, and can realize more intelligent and convenient maintenance and management.
Most of the existing intelligent locks are developed in application scenes suitable for intelligent home furnishing, most of the used communication modes are short-distance wireless communication, similar to Bluetooth, Wi-Fi and the like, the existing intelligent locks need to access the Internet by means of a gateway or intelligent equipment, and the existing intelligent locks cannot be applied to places with limited network environments. Therefore, the invention provides an intelligent lock system using a remote wireless communication mode, so as to realize application in a more complex environment.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides an intelligent lock system based on the Internet of things, which can realize the following functions: the method comprises the steps of communicating with a server in real time, controlling the lock to be opened and closed, detecting the state of the lock, detecting the residual electric quantity of a battery, obtaining the information of the geographical position of the lock, and prompting the opening and closing information and the electric quantity information of the battery of the lock.
The technical scheme adopted by the invention for solving the technical problems is as follows:
the utility model provides an intelligence lock system based on thing networking includes locking device and intelligent control device, and the locking device includes lock body, motor, locking arm, draw-in groove, place in the lock body in the motor, and the axis of rotation of motor stretches out in the lock body, the one end wherein of locking arm links to each other with the axis of rotation tip of motor, and the locking arm is perpendicular with the axis of rotation, and the locking arm rotates under the drive of motor axis of rotation, lock body and draw-in groove set up respectively on realizing two objects of open or close state each other, and lock body and draw-in groove position correspond each other, and based on this two corresponding each other of like the position, the locking arm rotates under the motor drive and realizes passing in and out the draw-in groove, realizes opening or closing of lock.
The intelligent control device comprises a microcontroller module, a communication module, a power management module and a locking arm position detection module, wherein the communication module, the power management module and the locking arm position detection module are respectively connected with the microcontroller module, the microcontroller module is connected with a motor, the power management module supplies power to the microcontroller module, the communication module and the motor, the microcontroller module detects and receives information of the communication module, the power management module, the locking arm position detection module and the motor, and the locking arm position detection module is arranged on a lock device and used for detecting the opening state or the closing state of the lock.
As a preferred technical scheme of the invention, the communication module adopts an NB-IoT module, and the microcontroller module carries out remote wireless communication with the server through the NB-IoT module and based on an MQTT protocol.
As a preferred technical solution of the present invention, the selected NB-IoT module supports GNSS positioning functions.
As a preferred technical solution of the present invention, the lock arm position detection module adopts an opposite type photoelectric sensor, the opposite type photoelectric sensor includes a photoelectric emission end, a photoelectric receiving end 1, and a photoelectric receiving end 2, the photoelectric emission end is disposed at the other end of the lock arm away from the motor, the photoelectric receiving end 1 is disposed inside the slot, and after the lock arm moves into the slot, the photoelectric receiving end 1 corresponds to the position of the photoelectric emission end, the photoelectric receiving end 2 is disposed on the lock body, and after the lock arm is lifted, the photoelectric receiving end 2 corresponds to the position of the photoelectric emission end.
As a preferred technical scheme of the invention, the power management module is composed of a lithium battery, a power supply circuit and an electric quantity detection circuit, wherein the lithium battery supplies power to the microcontroller module, the communication module and the motor through the power supply circuit, the electric quantity detection circuit is respectively connected with the lithium battery and the microcontroller module, and the electric quantity detection circuit detects the residual electric quantity of the battery.
As a preferred technical scheme of the present invention, the motor is a stepping motor, and the stepping motor is connected to the microcontroller module through a driving circuit.
As a preferred technical scheme of the invention, the microcontroller module uses STM32L0 series chips.
According to the application of the intelligent lock system based on the Internet of things, after the intelligent lock system is started, firstly, state self-checking is carried out, and the self-checking content comprises that a power management module detects the residual electric quantity of a battery, and whether the information of the electric quantity of the battery is sufficient or not is confirmed through a microcontroller module;
if the self-checking finds that the battery power is insufficient, uploading alarm information to a server through a communication module;
if the self-checking is normal, transmitting the state information received by the microcontroller module to the server through the communication module, and waiting for the server to issue an instruction, at the moment, enabling the microcontroller to work in a sleep mode so as to reduce the overall power consumption of the system;
when the communication module receives an instruction sent by the server, the communication module wakes up the microcontroller and transmits the instruction to the microcontroller module, and the microcontroller module analyzes the instruction;
when the analyzed instruction confirms that the instruction is an unlocking instruction, the microcontroller module transmits the instruction to the motor, the motor drives the locking arm to lift up to unlock, and after the unlocking is completed, state information is uploaded to the server through the microcontroller module and the communication module;
when the analyzed instruction confirms that the lock is closed, the lock arm position detection module confirms the state of the lock, if the lock is closed, the lock is not moved, if the lock is unlocked, the motor drives the lock arm to fall down to close the lock, and after the lock is closed, state information is uploaded to the server through the microcontroller module and the communication module;
and when the analyzed instruction is the instruction for acquiring the state information, the state information received by the microcontroller module is uploaded to the server through the communication module.
Has the advantages that: the invention discloses an intelligent lock system based on the Internet of things, which comprises a lock device, a microcontroller module, a communication module, a lock arm position detection module and a power management module. And the NB-IoT technology is adopted for wireless data communication, the deployment condition is not limited by the network environment, remote wireless communication is carried out through the MQTT protocol, the method works under the QoS1 service quality level, a unique message ID is carried in the message data to judge whether the message is a repeated message, repeated unlocking behavior is avoided, and the communication delay is reduced while the overhead is reduced.
Drawings
Fig. 1 is a block diagram of the overall structure of an intelligent lock system based on the internet of things;
FIG. 2 is a schematic diagram of a lock device of an intelligent lock system based on the Internet of things;
fig. 3 is a work flow diagram of an intelligent lock system based on the internet of things.
Reference numerals: the device comprises an a-lock body, a b-motor, a c-lock arm, a d-card slot and an e-lock arm position detection module.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further explained by combining the specific drawings.
The utility model provides an intelligence lock system based on thing networking includes lock device and intelligent control device, refers to fig. 2, and the lock device includes lock body, step motor, locking arm, draw-in groove, place in the lock body in the step motor, and step motor's axis of rotation stretches out in the lock body, the one end wherein of locking arm links to each other with step motor's axis of rotation tip, and the locking arm is perpendicular with the axis of rotation, and the locking arm rotates under the drive of step motor axis of rotation, lock body and draw-in groove set up respectively on realizing two objects of open or close state each other, and lock body and draw-in groove position correspond each other, and based on corresponding each other of these two object positions, the locking arm rotates under the step motor drive and realizes passing in and out the draw-in groove, realizes opening or closing of lock.
Referring to fig. 1, the intelligent control device comprises a microcontroller module, and a communication module, a power management module and a locking arm position detection module which are respectively connected with the microcontroller module, wherein the microcontroller module is connected with a stepping motor through a driving circuit, the power management module supplies power to the microcontroller module, the communication module and the stepping motor, the microcontroller module detects and receives information of the communication module, the power management module, the locking arm position detection module and the stepping motor, and the locking arm position detection module is arranged on a lock device and used for detecting the opening state or the closing state of the lock.
The microcontroller module uses the STM32L0 family of chips, which is low power consuming and well suited for battery powered or powered applications from energy harvesting scenarios. The microcontroller module is responsible for detecting various information input by other modules, including information such as battery power, signal strength, lock on-off state and location geographical position information, processing the information into a unified data exchange format after collecting, sending to the wireless communication module through the UART serial port, and obtaining a server issuing instruction received by the wireless communication module through serial port interruption, analyzing the instruction, and controlling the action of the execution module.
The communication module adopts an NB-IoT module, the microcontroller module carries out remote wireless communication with the server through the NB-IoT module based on an MQTT protocol, and the selected NB-IoT module supports the GNSS positioning function.
The microcontroller controls each phase winding of the stepping motor to be electrified according to a proper time sequence, the stepping motor can be driven to rotate, referring to fig. 2, the stepping motor drives the locking arm to rotate, the locking arm enters the clamping groove to realize locking, the stepping motor rotates the locking arm in the reverse direction to realize locking, and through the rotating angle of the pulse stepping motor, the pulse number is controlled to enable the forward and reverse rotation angle of the stepping motor to be 90 degrees.
Referring to fig. 2, the locking arm position detection module adopts an opposite-type photoelectric sensor, the opposite-type photoelectric sensor includes a photoelectric emission end, a photoelectric receiving end 1 and a photoelectric receiving end 2, the photoelectric emission end is arranged at the other end of the locking arm far away from the motor, the photoelectric receiving end 1 is arranged in the clamping groove, the photoelectric receiving end 1 corresponds to the position of the photoelectric emission end after the locking arm moves into the clamping groove, the photoelectric receiving end 2 is arranged on the locking body, and the photoelectric receiving end 2 corresponds to the position of the photoelectric emission end after the locking arm rises. When the lock is in a closed state, namely the lock arm falls down, the photoelectric receiving end 1 receives a photoelectric transmitting end signal. When the lock is in an open state, namely the lock arm rises, the photoelectric receiving end 2 receives a photoelectric transmitting end signal and detects the position of the lock arm. The working state of the photoelectric transmitting end is set to be controllable, when a pin of a microcontroller connected with the photoelectric transmitting end is at a low level, the photoelectric transmitting end starts to work so as to reduce power consumption, and whether the photoelectric receiving ends 1 and 2 receive signals or not is directly represented by the high level and the low level read by the pin of the microcontroller.
The power management module comprises a lithium battery, a power supply circuit and an electric quantity detection circuit, wherein the lithium battery supplies power for the microcontroller module, the communication module and the stepping motor through the power supply circuit, the electric quantity detection circuit is respectively connected with the lithium battery and the microcontroller module, and the electric quantity detection circuit detects the residual electric quantity of the battery. And detecting the residual electric quantity of the battery by adopting a voltage detection method, and collecting the voltage of the battery after voltage division by using an analog-to-digital conversion module of the microcontroller. The lithium battery supplies a 3.3V power supply to the microcontroller and the wireless communication module after being subjected to voltage reduction through the power supply circuit, and drives the stepping motor to rotate through the driving circuit after being subjected to voltage boosting through the power supply circuit.
Under the condition that the electric quantity of the system is insufficient, the microcontroller module can immediately upload the alarm information to the server through the communication module. The system electric quantity acquires specific voltage reading through a built-in analog-to-digital conversion module of the microcontroller, and the electric quantity is roughly expressed into three states: insufficient, sufficient, and saturated. The communication state information is obtained by the microcontroller sending AT instruction feedback for inquiring the network signal strength to the NB-IoT module.
Referring to fig. 3, the work flow of the intelligent lock system is as follows: after the intelligent lock system is started, firstly, state self-checking is carried out, wherein the self-checking content comprises that a power management module detects the residual electric quantity of a battery, and whether the information of the electric quantity of the battery is sufficient or not is confirmed through a microcontroller module;
if the self-checking finds that the battery power is insufficient, uploading alarm information to a server through a communication module;
if the self-checking is normal, transmitting the state information received by the microcontroller module to the server through the communication module, and waiting for the server to issue an instruction, at the moment, enabling the microcontroller to work in a sleep mode so as to reduce the overall power consumption of the system;
when the communication module receives an instruction sent by the server, the communication module wakes up the microcontroller through the UART serial port and transmits the instruction to the microcontroller module, and the microcontroller module analyzes the instruction;
when the analyzed instruction is confirmed to be an unlocking instruction, the microcontroller module transmits the instruction to the stepping motor, the stepping motor drives the locking arm to lift up to unlock, and after the unlocking is completed, state information is uploaded to the server through the microcontroller module and the communication module;
when the analyzed instruction confirms that the lock is closed, the lock arm position detection module confirms the state of the lock, if the lock is closed, no action is performed, if the lock is unlocked, the stepping motor drives the lock arm to fall down to close the lock, and after the lock is closed, state information is uploaded to the server through the microcontroller module and the communication module;
and when the analyzed instruction is the instruction for acquiring the state information, the state information received by the microcontroller module is uploaded to the server through the communication module.
The communication between the communication module and the server adopts an MQTT protocol, and in the process of issuing the instruction, the server is a publisher and the wireless communication module is a subscriber. In the process of uploading the state information, the server is a subscriber, and the wireless communication module is a publisher. The QoS1 quality of service level is selected with guaranteed message reliability. Repeated messages may be received under the QoS1 level, and a method of carrying a unique message ID in message data is used to judge whether the messages are repeated messages, and if the messages are repeated messages, the messages are discarded so as to ensure that no repeated unlocking action exists.
According to the intelligent lock system based on the Internet of things, the stepping motor is adopted to drive the lock arm to rotate, and the on-off state of the intelligent lock is detected through the correlation photoelectric sensor, so that closed-loop feedback control is realized. And the NB-IoT technology is adopted for wireless data communication, and the deployment condition is not limited by the network environment. The long-distance wireless communication is carried out through the MQTT protocol, the method works under the QoS1 service quality level, and whether the message data is a repeated message is judged by a method of carrying a unique message ID, so that repeated unlocking behaviors are avoided. The communication delay is reduced while the overhead is reduced.
The present invention is not limited to the above embodiments, and all equivalent structures made by using the contents of the specification and the drawings can be directly or indirectly applied to other related technical fields, and are within the scope of the present invention.
Claims (9)
1. The utility model provides an intelligence lock system based on thing networking which characterized in that: including lock device and intelligent control device, the lock device includes lock body, motor, locking arm, draw-in groove, place the lock body in the motor in, and the axis of rotation of motor stretches out in the lock body, the one end wherein of locking arm links to each other with the axis of rotation tip of motor, and the locking arm is perpendicular with the axis of rotation, and the locking arm rotates under the drive of motor axis of rotation, lock body and draw-in groove set up respectively on realizing two objects of open or close state each other, and lock body and draw-in groove position correspond each other, and based on this two corresponding each other of object position, the locking arm rotates under motor drive and realizes passing in and out the draw-in groove, realizes opening or closing of lock.
2. The intelligent control device comprises a microcontroller module, a communication module, a power management module and a locking arm position detection module, wherein the communication module, the power management module and the locking arm position detection module are respectively connected with the microcontroller module, the microcontroller module is connected with a motor controller, the power management module supplies power to the microcontroller module, the communication module and the motor, the microcontroller module detects and receives information of the communication module, the power management module, the locking arm position detection module and the motor, the information is transmitted to a server through the communication module, and the locking arm position detection module is arranged on the lock device and used for detecting the opening state or the closing state of the lock.
3. The intelligent lock system based on the Internet of things as claimed in claim 1, wherein: the communication module adopts an NB-IoT module, and the microcontroller module carries out remote wireless communication with the server through the NB-IoT module based on an MQTT protocol.
4. The intelligent lock system based on the Internet of things as claimed in claim 2, wherein: the selected NB-IoT module supports GNSS positioning functionality.
5. The intelligent lock system based on the Internet of things as claimed in claim 1, wherein: the locking arm position detection module adopts an opposite type photoelectric sensor, the opposite type photoelectric sensor comprises a photoelectric emission end, a photoelectric receiving end 1 and a photoelectric receiving end 2, the photoelectric emission end is arranged at the other end, far away from the motor, of the locking arm, the photoelectric receiving end 1 is arranged in the clamping groove, the photoelectric receiving end 1 corresponds to the position of the photoelectric emission end after the locking arm moves into the clamping groove, the photoelectric receiving end 2 is arranged on the locking body and corresponds to the position of the photoelectric emission end after the locking arm rises.
6. The intelligent lock system based on the Internet of things as claimed in claim 1, wherein: the power management module comprises lithium cell, supply circuit and electric quantity detection circuitry, and the lithium cell is microcontroller module, communication module, motor power supply through supply circuit, and electric quantity detection circuitry links to each other with lithium cell and microcontroller module respectively, and electric quantity detection circuitry detects battery residual capacity.
7. The intelligent lock system based on the Internet of things as claimed in claim 1, wherein: the motor is a stepping motor, and the stepping motor is connected with the microcontroller module through a driving circuit.
8. The intelligent lock system based on the Internet of things as claimed in claim 1, wherein: the microcontroller module uses the STM32L0 series of chips.
9. Use of the internet of things based smart lock system according to any one of claims 1 to 8, wherein: after the intelligent lock system is started, firstly, state self-checking is carried out, wherein the self-checking content comprises that a power management module detects the residual electric quantity of a battery, and whether the information of the electric quantity of the battery is sufficient or not is confirmed through a microcontroller module;
if the self-checking finds that the battery power is insufficient, uploading alarm information to a server through a communication module;
if the self-checking is normal, transmitting the state information received by the microcontroller module to the server through the communication module, and waiting for the server to issue an instruction, at the moment, enabling the microcontroller to work in a sleep mode so as to reduce the overall power consumption of the system;
when the communication module receives an instruction sent by the server, the communication module wakes up the microcontroller and transmits the instruction to the microcontroller module, and the microcontroller module analyzes the instruction;
when the analyzed instruction confirms that the instruction is an unlocking instruction, the microcontroller module transmits the instruction to the motor, the motor drives the locking arm to lift up to unlock, and after the unlocking is completed, state information is uploaded to the server through the microcontroller module and the communication module;
when the analyzed instruction confirms that the lock is closed, the lock arm position detection module confirms the state of the lock, if the lock is closed, the lock is not moved, if the lock is unlocked, the motor drives the lock arm to fall down to close the lock, and after the lock is closed, state information is uploaded to the server through the microcontroller module and the communication module;
and when the analyzed instruction is the instruction for acquiring the state information, the state information received by the microcontroller module is uploaded to the server through the communication module.
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| CN202110636606.4A CN113362501A (en) | 2021-06-08 | 2021-06-08 | Intelligent lock system based on Internet of things |
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| CN202110636606.4A CN113362501A (en) | 2021-06-08 | 2021-06-08 | Intelligent lock system based on Internet of things |
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| CN110616971A (en) * | 2019-10-25 | 2019-12-27 | 深圳途泰科技有限公司 | Novel logistics padlock |
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Application publication date: 20210907 |