CN109267514A - Wisdom based on NB-IoT technology shares berth lock - Google Patents
Wisdom based on NB-IoT technology shares berth lock Download PDFInfo
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- CN109267514A CN109267514A CN201811216138.XA CN201811216138A CN109267514A CN 109267514 A CN109267514 A CN 109267514A CN 201811216138 A CN201811216138 A CN 201811216138A CN 109267514 A CN109267514 A CN 109267514A
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F13/00—Arrangements for obstructing or restricting traffic, e.g. gates, barricades ; Preventing passage of vehicles of selected category or dimensions
- E01F13/04—Arrangements for obstructing or restricting traffic, e.g. gates, barricades ; Preventing passage of vehicles of selected category or dimensions movable to allow or prevent passage
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F13/00—Arrangements for obstructing or restricting traffic, e.g. gates, barricades ; Preventing passage of vehicles of selected category or dimensions
- E01F13/04—Arrangements for obstructing or restricting traffic, e.g. gates, barricades ; Preventing passage of vehicles of selected category or dimensions movable to allow or prevent passage
- E01F13/048—Arrangements for obstructing or restricting traffic, e.g. gates, barricades ; Preventing passage of vehicles of selected category or dimensions movable to allow or prevent passage with obstructing members moving in a translatory motion, e.g. vertical lift barriers, sliding gates
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H6/00—Buildings for parking cars, rolling-stock, aircraft, vessels or like vehicles, e.g. garages
- E04H6/42—Devices or arrangements peculiar to garages, not covered elsewhere, e.g. securing devices, safety devices, monitoring and operating schemes; centering devices
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H6/00—Buildings for parking cars, rolling-stock, aircraft, vessels or like vehicles, e.g. garages
- E04H6/42—Devices or arrangements peculiar to garages, not covered elsewhere, e.g. securing devices, safety devices, monitoring and operating schemes; centering devices
- E04H6/422—Automatically operated car-parks
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- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Lock And Its Accessories (AREA)
Abstract
The invention discloses a kind of wisdom based on NB-IoT technology to share berth lock, comprising: berth lock mechanical part: is mainly made of exterior shield, motor internal and outside lifting device three parts；Berth lock control module: for controlling motor internal positive and negative rotation, berth lock is gone up and down, and detect to the position of elevating lever, berth lock lifting action is accurately controlled to realize；MCU control module: carrying out data interaction with remote server, and after obtaining the instruction of server switch lock, the lifting action of elevating lever is controlled by berth lock control module；NB-IoT data communication module: the data interaction for MCU control module and remote server.The present invention passes through the NB-IoT network of mobile operator, interacts with long-range wisdom landing real time data, to realize that parking stall remotely controls, teleengineering support, shares and hire out.
Description
Technical field
The present invention relates to a kind of intelligentized control methods to share parking stall lock device, is suitable for city public parking position, privately owned parking stall
Intelligent control and information sharing, belong to wireless communication field.
Background technique
" finding no parking space " is not any fresh topic already, and in vehicle increasing today, parking stall but seems that catching the flap sees
Elbow, according to " the park construction industry market prediction of 2017-2022 China and the investment strategy rule of industrial research institute publication of looking forward to the prospect
Draw analysis report " statistical data show, at the end of 2016, China's motor vehicles for civilian use ownership reaches 1.94 hundred million, according to the world
Current criterion calculation (each car matches 1.4 berths), then the aggregate demand on domestic automobile parking stall is at 2.72 hundred million or so.
Associated mechanisms prediction, arrives the year two thousand twenty, China's motor vehicles for civilian use ownership will be more than 2.5 hundred million.It means that arriving the year two thousand twenty, China
The demand of vehicle parking space will be more than 3.5 hundred million.
In the case where sharing economic promotion, the shared demand in parking stall will welcome explosive growth.Old-fashioned vehicle traditional at present
For position lock base in the near-field communication modes such as bluetooth, 433M, LORA, a kind of mode is to carry out short distance control by near field unlocking key
System；Another way need to dispose corresponding base station in parking lot, and berth lock is first communicated with the base station disposed, and base station connects again
It is connected to long-range landing, to realize telecommunication control, but there are base stations to take electric difficult, base station deployment cost for this mode
High disadvantage.Meanwhile the berth lock based on near-field communication, there is also the larger problems of power consumption, need so as to cause berth lock short
Timing replacement battery or charging in phase.
Summary of the invention
It is an object of the invention to overcome the above problem of the existing technology, a kind of intelligence based on NB-IoT technology is provided
Intelligent shared berth lock.The present invention passes through the NB-IoT network of mobile operator, hands over long-range wisdom landing real time data
Mutually, to realize that parking stall remotely controls, teleengineering support, shares and hire out, and wisdom landing can be obtained in real time and be deployed
Wisdom shares the parking stall service condition on the parking lot of berth lock, parking stall, thus realize parking stall reservation, parking stall navigation, and from
The functions such as dynamic charging, remote payment.
To achieve the above object, The technical solution adopted by the invention is as follows:
A kind of shared berth lock of the wisdom based on NB-IoT technology characterized by comprising
Berth lock mechanical part: it is mainly made of exterior shield, motor internal and outside lifting device three parts, motor internal
It is placed in exterior shield, motor internal connects the elevating lever of lifting device by reduction gearing；
Berth lock control module: for controlling motor internal positive and negative rotation, go up and down berth lock, and carry out to the position of elevating lever
Detection accurately controls berth lock lifting action to realize；
MCU control module: controlling for complete machine service logic, by NB-IoT data communication module, carries out with remote server
Data interaction controls the lifting action of elevating lever by berth lock control module after obtaining the instruction of server switch lock；
NB-IoT data communication module: using NB-IoT mould group, hands over for the data between MCU control module and remote server
Mutually；
Power supply of the whole machine management module: the power supply for MCU control module and NB-IoT data communication module.
The shared berth lock is that ultrasonic-type shares berth lock, and it further includes ultrasound detection module that ultrasonic-type, which shares berth lock:
Whether there is stoppage of vehicle above berth lock for detecting, when carrying out parking stall measure, ultrasound detection module sends ultrasonic wave, and examines
Its echo is surveyed, by the detection to echo, judges whether vehicle is parked above lock.
The shared berth lock is that bluetooth-type shares berth lock, and it further includes bluetooth detection module that bluetooth-type, which shares berth lock:
For scanning the bluetooth IBeacon being loaded on car owner's vehicle, to judge vehicle whether on parking stall.
In the bluetooth detection module, using the CC2541 bluetooth module of built-in TI company, holotype is worked in, is scanned attached
The MAC of close Bluetooth beacon；After background server issues the instruction for opening berth lock bluetooth detection function, bluetooth-type berth lock
Self-timing scans the bluetooth MAC value of car owner, and when corresponding bluetooth MAC value is arrived in scanning, it is automatic that MCU control module controls berth lock
Decline；When host vehicle is located on parking stall, bluetooth detection module timing scan car owner bluetooth MAC does not scan the indigo plant of car owner
Tooth MAC, MCU control module control berth lock control module rise berth lock automatically.
The bluetooth-type is shared in berth lock, after berth lock executes lifting action, by NB-IoT data communication module,
By implementing result and current berth lock parameter, it is transferred to background server.
The MCU control module is used to control with the processing of remote server communication message and complete machine, passes through NB-IoT data
The instruction of communication module reception remote server, the movement of execution switch lock, implementing result are back to remote server, and MCU controls mould
Block receives data, parses its content according to the Handshake Protocol with remote server, according to the control instruction parsed, MCU control
Molding block issues corresponding action command, and the signal fed back according to touching switch to berth lock control module, and detection is this time dynamic
Movement implementing result is sent to MCU control module by the completion situation of work.
The NB-IoT data communication module uses NB-IoT module, passes through the NB-IoT net of operator wireless communication network
The data communication function sending and receiving data of network.
The NB-IoT mould group is connected to Mobile Network Operator NB-IoT by 3GPP Rel-13 radio protocol
Base station, the base station NB-IoT are connected to remote server by its core network, realize between shared berth lock and remote server
Data interaction.
The NB-IoT module establishes the communication with remote server, in real time after the success of NB-IoT network registry network
Receive the director data that remote server issues；When receiving the instruction that remote server issues, MCU is sent to by serial ports
Control module is handled, and corresponding movement is executed, and when movement is completed, MCU control module will instruct completion status data group packet,
It is sent to NB-IoT data communication module by serial ports, NB-IoT data communication module again uploads to the data received remotely
Server.
The berth lock control module is RZ7889 driving chip, receives the lifting action instruction of MCU control module, passes through
Control motor internal makes lifter rod lifting, and when berth lock is locked, motor internal is rotated forward, and connecting rod is pulled to be rotated up 90 degree,
When reaching 90 degree of positions, touching switch is triggered, and feeds back to MCU control module control and stops continuing to rise, while being locked at connecting rod
Dead connecting rod when berth lock unlocks, is opened at connecting rod, and motor internal rotates backward, and drives connecting rod to be rotated down 90 degree, drops to ground
Unlock is completed when plane.
The power supply of the whole machine management module is powered with 6V DC power supply, using LM317T and TPS76333 voltage regulator chip,
Generation 3.8V voltage is NB-IoT module for power supply respectively and generation 3.3V voltage is MCU control module power supply.
The invention also includes on-off circuit modules: using the switching circuit of metal-oxide-semiconductor, controlling bluetooth detection module respectively, surpasses
The opening and closing in sound detection modular power source circuit；The power supply of bluetooth detection module and ultrasound detection module, is connected to
The 3.3V of TPS76333 output, the I/O pin of MCU control module connect the pole G of metal-oxide-semiconductor as control terminal, and the pole S of metal-oxide-semiconductor connects
The ground GND of power supply is met, the pole D of metal-oxide-semiconductor is separately connected the ground GNDA of bluetooth detection module and ultrasound detection module, when MCU is controlled
When high level is arranged in the I/O pin of module, GND and GNDA conducting are powered bluetooth detection module and ultrasound detection module；
When low level is arranged in the I/O pin of MCU control module, GND and GNDA cutting connection, to bluetooth detection module and ultrasound detection mould
The electric power loop of block is closed.
The MCU control module uses the single-chip microcontroller STM32L031K6T6 of STM32L series.
Using the present invention has the advantages that
One, the present invention is based on narrowband Internet of Things NB-IoT technologies, are not necessarily to networking again, rely on and set with operator wireless network realization
Standby communication function has the characteristics of low-power consumption, broad covered area, low latency, and the network of high quality guarantees the unobstructed of data interaction,
With the real-time acquisition to realize the real-time control and parking space information of berth lock.
Two, exterior shield used in the present invention is using thickening steel plate design, thus realize the waterproof of complete machine, moisture-proof,
Waterproofing grade reaches IP67, is provided simultaneously with resistance to compression, anticollision, anti-corrosion property.
Three, the present invention devises 3 kinds of models according to different application scenarios, i.e., is remotely controlled based on NB-IoT network
Basic model, by bluetooth scanning module carry out automatic switch lock bluetooth-type, sailed out of by the progress vehicle of ultrasound detection after
The ultrasonic-type of automatic control.Meet the use demand of several scenes.
Four, the present invention makes full use of the low power consumption characteristic of NB-IoT, reduces power consumption to the maximum extent in hardware side；Meanwhile
In the embedded software that wisdom shares lock, by device sleeps, the eDRX scheme control of NB-IoT, to further decrease complete machine
Power consumption.By a series of power consumption control measures of hardware, software, wisdom shares lock operating time up to 1 year or more at present, from
And eliminate the inconvenience that user frequently replaces battery or charging.
Five, the present invention has the characteristics that economic and practical, high reliability, high efficiency, intelligentized, and utilizes NB-IoT network reality
Existing teledata interaction, to realize that parking stall remotely control, teleengineering support, to share taxi, parking stall pre- on wisdom landing
About, the functions such as parking stall navigation and automatic charging, remote payment.
Detailed description of the invention
Fig. 1 is circuit principle structure schematic diagram of the present invention.
Specific embodiment
Embodiment 1
A kind of shared berth lock of the wisdom based on NB-IoT technology characterized by comprising
Berth lock mechanical part: it is mainly made of exterior shield, motor internal and outside lifting device three parts.Motor internal
It is placed in exterior shield, motor internal connects the elevating lever of lifting device by reduction gearing；
Berth lock control module: for controlling motor internal positive and negative rotation, go up and down berth lock, and carry out to the position of elevating lever
Detection accurately controls berth lock lifting action to realize；
MCU control module: controlling for complete machine service logic, by NB-IoT data communication module, carries out with remote server
Data interaction controls the lifting action of elevating lever by berth lock control module after obtaining the instruction of server switch lock；
NB-IoT data communication module: using NB-IoT mould group, hands over for the data between MCU control module and remote server
Mutually；
Power supply of the whole machine management module: the power supply for MCU control module and NB-IoT data communication module.
The shared berth lock is that ultrasonic-type shares berth lock, and it further includes ultrasound detection module that ultrasonic-type, which shares berth lock:
Whether there is stoppage of vehicle above berth lock for detecting, when carrying out parking stall measure, ultrasound detection module sends ultrasonic wave, and examines
Its echo is surveyed, by the detection to echo, judges whether vehicle is parked above lock.
The shared berth lock is that bluetooth-type shares berth lock, and it further includes bluetooth detection module that bluetooth-type, which shares berth lock:
For scanning the bluetooth IBeacon being loaded on car owner's vehicle, to judge vehicle whether on parking stall.
In the bluetooth detection module, using the CC2541 bluetooth module of built-in TI company, holotype is worked in, is scanned attached
The MAC of close Bluetooth beacon；After background server issues the instruction for opening berth lock bluetooth detection function, bluetooth-type berth lock
Self-timing scans the bluetooth MAC value of car owner, and when corresponding bluetooth MAC value is arrived in scanning, it is automatic that MCU control module controls berth lock
Decline；When host vehicle is located on parking stall, bluetooth detection module timing scan car owner bluetooth MAC does not scan the indigo plant of car owner
Tooth MAC, MCU control module control berth lock control module rise berth lock automatically.
The bluetooth-type is shared in berth lock, after berth lock executes lifting action, by NB-IoT data communication module,
By implementing result and current berth lock parameter, it is transferred to background server.
The MCU control module is used to control with the processing of remote server communication message and complete machine, passes through NB-IoT data
The instruction of communication module reception remote server, the movement of execution switch lock, implementing result are back to remote server, and MCU controls mould
Block receives data, parses its content according to the Handshake Protocol with remote server, according to the control instruction parsed, MCU control
Molding block issues corresponding action command, and the signal fed back according to touching switch to berth lock control module, and detection is this time dynamic
Movement implementing result is sent to MCU control module by the completion situation of work.
The NB-IoT data communication module uses NB-IoT module, passes through the NB-IoT net of operator wireless communication network
The data communication function sending and receiving data of network.
The NB-IoT mould group is connected to Mobile Network Operator NB-IoT by 3GPP Rel-13 radio protocol
Base station, the base station NB-IoT are connected to remote server by its core network, realize between shared berth lock and remote server
Data interaction.
The NB-IoT module establishes the communication with remote server, in real time after the success of NB-IoT network registry network
Receive the director data that remote server issues；When receiving the instruction that remote server issues, MCU is sent to by serial ports
Control module is handled, and corresponding movement is executed, and when movement is completed, MCU control module will instruct completion status data group packet,
It is sent to NB-IoT data communication module by serial ports, NB-IoT data communication module again uploads to the data received remotely
Server.
The berth lock control module is RZ7889 driving chip, receives the lifting action instruction of MCU control module, passes through
Control motor internal makes lifter rod lifting, and when berth lock is locked, motor internal is rotated forward, and connecting rod is pulled to be rotated up 90 degree,
When reaching 90 degree of positions, touching switch is triggered, and feeds back to MCU control module control and stops continuing to rise, while being locked at connecting rod
Dead connecting rod when berth lock unlocks, is opened at connecting rod, and motor internal rotates backward, and drives connecting rod to be rotated down 90 degree, drops to ground
Unlock is completed when plane.
The power supply of the whole machine management module is powered with 6V DC power supply, using LM317T and TPS76333 voltage regulator chip,
Generation 3.8V voltage is NB-IoT module for power supply respectively and generation 3.3V voltage is MCU control module power supply.
The invention also includes on-off circuit modules: using the switching circuit of metal-oxide-semiconductor, controlling bluetooth detection module respectively, surpasses
The opening and closing in sound detection modular power source circuit；The power supply of bluetooth detection module and ultrasound detection module, is connected to
The 3.3V of TPS76333 output, the I/O pin of MCU control module connect the pole G of metal-oxide-semiconductor as control terminal, and the pole S of metal-oxide-semiconductor connects
The ground GND of power supply is met, the pole D of metal-oxide-semiconductor is separately connected the ground GNDA of bluetooth detection module and ultrasound detection module, when MCU is controlled
When high level is arranged in the I/O pin of module, GND and GNDA conducting are powered bluetooth detection module and ultrasound detection module；
When low level is arranged in the I/O pin of MCU control module, GND and GNDA cutting connection, to bluetooth detection module and ultrasound detection mould
The electric power loop of block is closed, to efficiently reduce the Overall Power Consumption of lock.
Using the characteristic of N-type metal-oxide-semiconductor, rapidly switching off and being connected to subsequent module power supply is realized, and in conducting,
Itself internal resistance of NMOS tube is less than 20 milliohms, to reduce pressure drop when electric current passes through NMOS tube, meanwhile, in D, S grade of NMOS tube
Between, the resistance of 1.5M is connected, realizes the protection to NMOS tube.
The MCU control module uses the single-chip microcontroller STM32L031K6T6 of STM32L series.
The problem larger compared to traditional berth lock power consumption, the present invention can obviously reduce the power consumption of berth lock, extend vehicle
Position lock uses the time.
The power consumption control means used in hardware design have:
1, switching circuit is designed using metal-oxide-semiconductor, controls bluetooth module and ultrasonic module power supply respectively.Enter suspend mode mould in berth lock
After formula, is controlled by MCU and close metal-oxide-semiconductor, thoroughly separate the power supply of ultrasonic module and bluetooth module, to efficiently reduce lock
Overall Power Consumption；Into after normal mode of operation, metal-oxide-semiconductor is reopened, restores the power supply of bluetooth module and ultrasonic module, is realized
Bluetooth MAC scanning and ultrasound detection.
2, in telecommunication, data interaction is carried out using NB-IoT module, makes full use of the low power consumption characteristic of NB-IoT,
Realize the power consumption control of communication process and sleep procedure.
3, using the low-power scm STM32L031K6T6 of STM32L series, in the suspend mode shape of Standyby mode
Under state, electric current is only 0.25uA, work dominant frequency maximum 32MHz, using 8MHz work dominant frequency when, operating current is
608uA, when suspend mode frequency reducing is 1MHz, electric current is only 76uA.By using low-power scm, so that the current drain of MCU exists
UA rank, significantly reduces Overall Power Consumption.The power consumption control means used in software control have:
(1) MCU in the normal mode of operation, using 8MHz dominant frequency, effectively reduces current drain when work；When complete machine enters
Before suspend mode, by software configuration, the dominant frequency of MCU is 1MHz when configuring suspend mode, the power consumption that suspend mode is is further decreased, at this point, MCU
Wake-up when can receive downlink data by timing wake-up or NB-IoT module, MCU pass through software configuration, weight Yi Dan waken up
It is restored to the dominant frequency of 8MHz, newly to realize corresponding business processing.
(2) in order to save power consumption of terminal, while meeting the requirement of downlink business time delay, NB-IoT communication module operating mode
It is configured to DRX mode.The DRX cycle value range of NB-IoT are as follows: 1.28s, 2.56s, 5.12s or 10.24s.In Idle state
When, the every DRX cycle of NB-IoT communication module monitors a paging channel, checks whether there is downlink business arrival.After the completion of monitoring,
NB-IoT communication module waits the arrival of DRX cycle next time automatically into dormant state.Therefore, by being communicated to NB-IoT
The configuration of the operating mode of module, is effectively reduced the power consumption of NB-IoT communication module, while reaching and receiving downlink control instruction
Purpose.
(3) for bluetooth-type berth lock and ultrasonic-type berth lock, corresponding bluetooth, ultrasonic timing inspection policies is formulated, is realized
The power consumption control of amplitude peak.Bluetooth scanning and ultrasound detection after MCU timing wake-up, are opened using the strategy of timing detection
Metal-oxide-semiconductor, bluetooth module and ultrasonic module realize bluetooth MAC scanning and ultrasonic echo detection respectively；Detection finishes, then closes MOS
Pipe blocks bluetooth module and ultrasonic module power supply, into complete machine dormant state, realizes effective Overall Power Consumption control.
Embodiment 2
The present invention is directed to the different application scene of berth lock deployment, devises 3 kinds of models, i.e., is carried out based on NB-IoT network long-range
The basic model of control carries out the bluetooth-type of automatic switch lock by bluetooth scanning module, is sailed out of by the carry out vehicle of ultrasound detection
The ultrasonic-type of automatic control afterwards.Basic model realizes the long-range control based on NB-IoT, and realizes vehicle by wisdom landing
Position is shared and subleases, and bluetooth-type and ultrasonic-type are to realize the automatic of the berth lock under different scenes are applied on the basis of basic model
Lifting.
In 3 kinds of models, basic model includes berth lock mechanical part, berth lock motor control module, MCU control module, NB-
IoT data communication module, power supply of the whole machine management module, basic model are also complete machine common sparing.On its basis, if insertion ultrasound
Detection module upgrades to ultrasonic-type, if insertion bluetooth detection module, that is, upgrade to bluetooth-type.
Berth lock mechanical part: mainly by exterior shield, motor internal, outside lifting device three parts are constituted, external
Shielding case is used for the waterproof of complete machine, moisture-proof, the contact of isolation internal circuit and mechanical part and outside；Motor internal passes through deceleration
Gear is connected to elevating lever, and MCU control module realizes that outside rises by control motor internal rotation direction, and using reduction gearing
The elevating function of falling unit.
Berth lock motor control module: the module controls motor positive and negative rotation using direct current generator driving chip, to realize
The lifting of mechanical lock, and by touching switch, the position of elevating lever is detected, to realize the control of berth lock lifting action
System.
Ultrasound detection module (ultrasonic-type): whether the module utilizes ultrasonic technology, have vehicle to stop above detection berth lock
It stays.When carrying out parking stall measure, module sends ultrasonic wave, and detects its echo；When thering is vehicle to be parked in above berth lock,
Due to metal barrier, echo enhancing judges whether top is parked vehicle by the detection to echo.
Bluetooth detection module (bluetooth-type): the module utilizes bluetooth module, scans the bluetooth being loaded on car owner's vehicle
IBeacon, to judge host vehicle whether on parking stall, with realize host vehicle reach when berth lock fall automatically and
Berth lock after host vehicle sails out of rises automatically.
MCU control module: it is main to realize the control of complete machine service logic, by NB-IoT module, with remote back-office server
Data interaction is carried out, after obtaining the instruction of server switch lock, control berth lock motor control module realizes that the lifting of elevating lever is dynamic
Make；Meanwhile in ultrasonic-type berth lock terminal, ultrasound echo signal is acquired, whether vehicle is detected in place, and according to super
Sound detection result controls berth lock motor control module；In bluetooth-type berth lock terminal, car owner's bluetooth MAC is carried out
Scanning, whether detection host vehicle is in place, and controls according to bluetooth testing result berth lock motor control module；
NB-IoT data communication module: using NB-IoT mould group, realizes that the data of shared berth lock terminal and remote server are handed over
Mutually.NB-IoT mould group is connected to the base station Mobile Network Operator NB-IoT, NB- by 3GPP Rel-13 radio protocol
The base station IoT is connected to remote server by its core network, the final data realized between berth lock terminal and remote server
Interaction.
Power supply of the whole machine management module: complete machine facilitates user's self-changeable battery using No. 1 battery power supply of 4 section high-performance；It adopts
With integrated decompression chip, 3.3V and 3.8V are converted battery voltage to, is supplied respectively to MCU control module and NB-IoT communication module
It uses.Meanwhile switching circuit is designed using metal-oxide-semiconductor, bluetooth, ultrasonic module electric power loop are controlled, respectively to realize ultrasound, bluetooth
The opening and closing of the electric power loop of module.The power supply of ultrasound, bluetooth module is connected to the 3.3V of TPS76333 output, MCU's
I/O pin connects the pole G of metal-oxide-semiconductor, the ground GND of the pole the S connection power supply of metal-oxide-semiconductor, the pole D of metal-oxide-semiconductor connects blue as control terminal
The ground GNDA of tooth, ultrasonic module.When high level is arranged in the I/O pin of MCU, GND and GNDA conducting are realized to bluetooth, ultrasonic mould
The power supply of block；When low level is arranged in the I/O pin of MCU, the power supply to bluetooth, ultrasonic module is realized in GND and GNDA cutting connection
Circuit is closed, to efficiently reduce the Overall Power Consumption of lock.
The berth lock mechanical part: as shown in Figure 1, being berth lock hardware mechanical structure schematic diagram, mainly by external screen
Cover, motor internal are covered, outside lifting device three parts are constituted.Waterproof, moisture-proof of the exterior shield for complete machine, using thickening steel
Plate design, has IP67 waterproofing grade, is provided simultaneously with resistance to compression, anticollision, anti-corrosion property.Motor internal is connected by reduction gearing
Elevating lever, to realize berth lock automatic lifting.
The berth lock control module: berth lock control module receives the lifting action of MCU control module, utilizes RZ7889
Driving chip realizes the lifting of elevating lever by control direct current generator.When berth lock is locked, motor internal is rotated forward, and is pulled
Connecting rod is rotated up 90 degree, when reaching 90 degree of positions, triggers touching switch, and feeds back to MCU control module stopping and continue to rise,
Mechanical lock locks connecting rod at connecting rod simultaneously, and human factor is avoided to change parking stall lock status.When berth lock unlocks, mechanical lock at connecting rod
It opens, motor internal rotates backward, and connecting rod is driven to be rotated down 90 degree, completes unlock when dropping to ground level.
The ultrasound detection module (ultrasonic-type): the module uses ultrasonic distance testing principle, and ultrasonic wave module is allowed to send out
It penetrates hair and penetrates pulse signal, can turn back when ultrasonic wave encounters barrier, generate echo, ultrasonic wave module receives head and carries out echo
Waveforms detection is emitted and is received by measurement the time delay of waveform, calculates barrier at a distance from ultrasound examination module,
And then judge whether there is vehicle above berth lock, to realize the judgement for whether having vehicle on parking stall.
The parking lot that berth lock is shared for laying ultrasonic-type, when vehicle reaches parking lot gate, landing passes through
Camera automatic identification license plate number, and the idle parking stall in parking lot is automatically selected, the telecommunication of NB-IoT is utilized by backstage
Function notifies specified ultrasonic-type to share berth lock and fall, and ultrasonic-type shares berth lock and starts with the detection of ultrasound detection module
In place whether vehicle.Vehicle in place after, start detect vehicle whether will leave, when vehicle leaves, postpone a period of time after, surpass
Sound type is shared berth lock and is risen, and utilizes NB-IoT network, and notice landing parking stall is idle, is simultaneously stopped ultrasonic inspection
It surveys, to reduce the power consumption that ultrasonic-type shares berth lock.
The bluetooth detection module (bluetooth-type): the module utilizes the CC2541 bluetooth module of built-in TI company, works in
Holotype scans the MAC of neighbouring Bluetooth beacon；When background server issues the instruction of unlatching berth lock bluetooth detection function
Afterwards, the bluetooth MAC value of bluetooth-type berth lock self-timing scanning car owner illustrates vehicle when corresponding bluetooth MAC value is arrived in scanning
Main vehicle declines automatically already close to parking stall, the berth lock of MCU control module control at this time；Host vehicle is located on parking stall
When, bluetooth detection module timing scan car owner bluetooth MAC has then illustrated vehicle once discovery does not scan the bluetooth MAC of car owner
Parking stall is sailed out of, MCU controls berth lock control module at this time, and berth lock is risen automatically；
Bluetooth-type shares berth lock, and the main automatic lifting for realizing berth lock specifies the bluetooth-type beacon detected needed for berth lock
MAC, the MAC value for the shared people that MAC value and car owner including car owner itself are specified.Shared platform of stopping utilizes background server,
It issues MAC by NB-IoT network to share on berth lock to specified bluetooth-type, the bluetooth scanned needed for setting so as to berth lock
MAC.Bluetooth-type shares berth lock after berth lock executes lifting action, by NB-IoT network, by implementing result, current parking stall
The parameters such as lock status, are transferred to background server, so that shared platform of stopping knows the real-time Parking situation of each parking stall.
The MCU control module: MCU is that the core brain of entire parking stall lock control is had low using ARM low-power consumption MCU
The characteristics of power consumption, while there are the peripheral hardwares such as ADC, DAC, comparator, USART, SPI, I2C.
MCU control module is mainly realized to be controlled with the processing of remote server communication message and complete machine, passes through NB- to realize
The instruction of IoT communication module reception remote server, the movement of execution switch lock, implementing result are back to the affairs such as remote server.
MCU communication module receives data, parses its content according to the Handshake Protocol with remote server, is referred to according to the control parsed
It enables, MCU issues corresponding action command, and the signal fed back according to touching switch to berth lock control module, and detection is this time dynamic
Movement implementing result is sent to MCU communication module by the completion situation of work.
The data communication module: using NB-IoT module, passes through the NB-IoT network of operator wireless communication network
Data communication function sending and receiving data.Based on the device end of NB-IoT network, have many characteristics, such as low-power consumption, high connection, low cost.
After the success of NB-IoT Module registers network, it is established that and the communication of remote server, the finger that real-time reception remote server issues
Enable data；When receiving the instruction that remote server issues, MCU is sent to by serial ports and is handled, executed corresponding dynamic
Make, when movement is completed, MCU can will instruct completion status data group packet, be sent to data communication module, data communication by serial ports
The data received are uploaded to remote server again by module.
The power supply of the whole machine management module: due to the power supply of complete machine modules, power consumption demand is inconsistent, power supply it is reasonable
It is converted into necessity.External power supply of the invention is powered using 6V DC power supply, using LM317T and TPS76333 money pressure stabilizing
Device chip generates 3.8V voltage respectively and realizes that NB-IoT module for power supply and 3.3V voltage realize MCU power supply.LLM317T is adjustable
Voltage range be 2.7V to 37V, output electric current be 1.5A.It can effectively prevent output short-circuit, overcurrent, overheat, be suitable for NB-
Larger current supply of the IoT module in communication process.TPS76333 low pressure difference linear voltage regulator inputs as 2.7V to 10V, defeated
It is out the voltage of 1.6V to 5.0V different stalls, output electric current is 150mA, has low differential pressure, low-power consumption, the spy of quiescent current
Point, suitable for the power supply to MCU.Meanwhile switching circuit is designed using metal-oxide-semiconductor, bluetooth is controlled respectively, ultrasonic module power supply returns
Road, to realize the opening and closing of the electric power loop of ultrasound, bluetooth module.The power supply of ultrasound, bluetooth module, is connected to
The 3.3V of TPS76333 output, the I/O pin of MCU connect the pole G of metal-oxide-semiconductor as control terminal, the pole the S connection power supply of metal-oxide-semiconductor
Ground GND, the pole D of metal-oxide-semiconductor connect the ground GNDA of bluetooth, ultrasonic module.When high level is arranged in the I/O pin of MCU, GND and GNDA
The power supply to bluetooth, ultrasonic module is realized in conducting；When low level is arranged in the I/O pin of MCU, GND and GNDA cutting connection are realized
The electric power loop of bluetooth, ultrasonic module is closed, to efficiently reduce the Overall Power Consumption of lock.
Embodiment 3
The present invention will be further described for the present embodiment combination attached drawing.
As shown in Figure 1, circuit realization principle: the wisdom based on NB-IoT technology shares parking stall lock circuit by multiple circuit moulds
Block is built-up, including MCU control module, power supply of the whole machine management module, NB-IoT data communication module, parking stall lock control mould
Block, bluetooth detection module, ultrasound detection module and on-off circuit module.The combination of modules realizes basic model lock, blue
The functional requirement of tooth form lock and ultrasonic-type lock.
1, power supply of the whole machine management module: power supply is powered using external 6V battery, and 6V voltage is passed through decompression chip respectively
LM317 and decompression chip TPS76333 are adjusted to 3.8V and 3.3V.
2, NB-IoT data communication module: NB-IoT data communication module is connected by serial ports with the serial ports of MCU, and MCU is logical
Cross serial ports issue AT command set control data communication module and receive data communication module data, realize remote server with
The data of MCU are transmitted.
3, berth lock control module: the control of berth lock motor is controlled by the STM32 of low-power consumption version, and MCU passes through IO
Mouth exports low and high level to control berth lock control module, to realize the forward direction of motor and rotate backward, to control elevating lever
Movement.
4, bluetooth detection module: bluetooth detection module is connected by serial ports with MCU, and MCU is opened by sending instructions under serial ports
Open the scanning function of bluetooth detection module, the bluetooth MAC value collected is transferred in MCU by bluetooth detection module, MCU according to
Collected information makes corresponding strategy judgement.MCU controls the power switch of bluetooth detection module by I/O port simultaneously.
5, ultrasound detection module: MCU is connected to the input terminal of ultrasound detection module by I/O port, when MCU persistently exports one
After the high level of section time, ultrasound detection module opens distance detection.It is delayed by the regular hour, ultrasound detection module will lead to
It crosses output pin and exports the high level continued for some time.The output end of ultrasonic module is connected on the I/O port of MCU, this I/O port is set
It is set to external interrupt triggering, by detecting the time of high level on this I/O port, the distance of available ultrasound detection module output
Detection information.MCU controls the power supply of ultrasound detection module by I/O port simultaneously.
6, on-off circuit module: designing switching circuit using metal-oxide-semiconductor, control bluetooth, ultrasonic module electric power loop respectively, with
Realize the opening and closing of ultrasonic, bluetooth module electric power loop.The power supply of ultrasound, bluetooth module, it is defeated to be connected to TPS76333
The I/O pin of 3.3V out, MCU connect the pole G of metal-oxide-semiconductor, the ground GND, MOS of the pole the S connection power supply of metal-oxide-semiconductor as control terminal
The pole D of pipe connects the ground GNDA of bluetooth, ultrasonic module.When high level is arranged in the I/O pin of MCU, GND and GNDA conducting are realized
Power supply to bluetooth, ultrasonic module；When low level is arranged in the I/O pin of MCU, GND and GNDA cutting connection are realized to bluetooth, are surpassed
The electric power loop of sound module is closed.
Claims (10)
1. a kind of wisdom based on NB-IoT technology shares berth lock characterized by comprising
Berth lock mechanical part: it is mainly made of exterior shield, motor internal and outside lifting device three parts, motor internal
It is placed in exterior shield, motor internal connects the elevating lever of lifting device by reduction gearing；
Berth lock control module: for controlling motor internal positive and negative rotation, go up and down berth lock, and carry out to the position of elevating lever
Detection accurately controls berth lock lifting action to realize；
MCU control module: controlling for complete machine service logic, by NB-IoT data communication module, carries out with remote server
Data interaction controls the lifting action of elevating lever by berth lock control module after obtaining the instruction of server switch lock；
NB-IoT data communication module: using NB-IoT mould group, hands over for the data between MCU control module and remote server
Mutually；
Power supply of the whole machine management module: the power supply for MCU control module and NB-IoT data communication module.
2. the wisdom according to claim 1 based on NB-IoT technology shares berth lock, which is characterized in that the shared vehicle
Position lock is that ultrasonic-type shares berth lock, and it further includes ultrasound detection module that ultrasonic-type, which shares berth lock: for detecting above berth lock
Whether stoppage of vehicle is had, when carrying out parking stall measure, ultrasound detection module sends ultrasonic wave, and its echo is detected, by returning
The detection of wave judges whether vehicle is parked above lock.
3. the wisdom according to claim 1 based on NB-IoT technology shares berth lock, which is characterized in that the shared vehicle
Position lock is that bluetooth-type shares berth lock, and it further includes bluetooth detection module that bluetooth-type, which shares berth lock: being loaded into car owner for scanning
Bluetooth IBeacon on vehicle, to judge vehicle whether on parking stall；After berth lock executes lifting action, pass through NB-
Implementing result and current berth lock parameter are transferred to background server by IoT data communication module.
4. the wisdom according to claim 3 based on NB-IoT technology shares berth lock, which is characterized in that the bluetooth inspection
It surveys in module, using the CC2541 bluetooth module of built-in TI company, works in holotype, scan the MAC of neighbouring Bluetooth beacon；
After background server issues the instruction for opening berth lock bluetooth detection function, bluetooth-type berth lock self-timing scans car owner's
Bluetooth MAC value, when corresponding bluetooth MAC value is arrived in scanning, MCU control module control berth lock declines automatically；Host vehicle is located at
When on parking stall, bluetooth detection module timing scan car owner bluetooth MAC does not scan the bluetooth MAC of car owner, MCU control module
Control berth lock control module rises berth lock automatically.
5. the wisdom according to claim 1,2,3 or 4 based on NB-IoT technology shares berth lock, it is characterised in that: institute
MCU control module is stated for controlling with the processing of remote server communication message and complete machine, is connect by NB-IoT data communication module
The instruction of receipts remote server, the movement of execution switch lock, implementing result are back to remote server, and MCU control module receives number
According to parsing its content according to the Handshake Protocol with remote server, according to the control instruction parsed, MCU control module is to vehicle
Position lock control module issues corresponding action command, and the signal fed back according to touching switch, the completion shape of detection this time movement
Movement implementing result is sent to MCU control module by condition.
6. the wisdom according to claim 5 based on NB-IoT technology shares berth lock, it is characterised in that: the NB-IoT
Data communication module uses NB-IoT module, is received by the data communication function of the NB-IoT network of operator wireless communication network
Send out data；The NB-IoT mould group is connected to Mobile Network Operator NB-IoT base by 3GPP Rel-13 radio protocol
It stands, the base station NB-IoT is connected to remote server by its core network, realizes between shared berth lock and remote server
Data interaction.
7. the wisdom according to claim 6 based on NB-IoT technology shares berth lock, it is characterised in that: the NB-IoT
Module is established after the success of NB-IoT network registry network and the communication of remote server, real-time reception remote server issues
Director data；When receiving the instruction that remote server issues, MCU control module is sent to by serial ports and is handled,
Corresponding movement is executed, when movement is completed, MCU control module will instruct completion status data group packet, be sent to NB- by serial ports
The data received are uploaded to remote server again by IoT data communication module, NB-IoT data communication module.
8. the wisdom according to claim 7 based on NB-IoT technology shares berth lock, it is characterised in that: the berth lock
Control module is RZ7889 driving chip, receives the lifting action instruction of MCU control module, makes to go up and down by controlling motor internal
Bar lifting, when berth lock is locked, motor internal is rotated forward, and connecting rod is pulled to be rotated up 90 degree, when reaching 90 degree of positions, triggering
Touching switch, and feed back to MCU control module control and stop continuing to rise, while locking connecting rod at connecting rod, when berth lock unlocks,
It is opened at connecting rod, motor internal rotates backward, and connecting rod is driven to be rotated down 90 degree, completes unlock when dropping to ground level.
9. the wisdom according to claim 8 based on NB-IoT technology shares berth lock, it is characterised in that: the complete machine electricity
Source control module is powered with 6V DC power supply, and using LM317T and TPS76333 voltage regulator chip, generating 3.8V voltage respectively is
NB-IoT module for power supply and generation 3.3V voltage are MCU control module power supply.
10. the wisdom according to claim 9 based on NB-IoT technology shares berth lock, it is characterised in that: described shared
Berth lock further includes on-off circuit module: using the switching circuit of metal-oxide-semiconductor, controlling bluetooth detection module, ultrasound detection mould respectively
The opening and closing of block electric power loop；The power supply of bluetooth detection module and ultrasound detection module is connected to TPS76333 output
3.3V, the I/O pin of MCU control module connect the pole G of metal-oxide-semiconductor as control terminal, and the pole S of metal-oxide-semiconductor connects the ground GND of power supply,
The pole D of metal-oxide-semiconductor is separately connected the ground GNDA of bluetooth detection module and ultrasound detection module, when the I/O pin of MCU control module is set
When setting high level, GND and GNDA conducting are powered bluetooth detection module and ultrasound detection module；The IO of MCU control module
When low level is arranged in pin, the electric power loop of bluetooth detection module and ultrasound detection module is closed in GND and GNDA cutting connection
It closes.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811216138.XA CN109267514A (en) | 2018-10-18 | 2018-10-18 | Wisdom based on NB-IoT technology shares berth lock |
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| CN201811216138.XA CN109267514A (en) | 2018-10-18 | 2018-10-18 | Wisdom based on NB-IoT technology shares berth lock |
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| CN110209090A (en) * | 2019-06-14 | 2019-09-06 | 国网江苏省电力有限公司常州供电分公司 | Intelligent cable well lid |
| CN110908293A (en) * | 2019-12-11 | 2020-03-24 | 杭州涂鸦信息技术有限公司 | Shared electrical appliance control method and system based on NB-IOT |
| CN113256849A (en) * | 2021-04-09 | 2021-08-13 | 武汉慧联无限科技有限公司 | Processing method for parking space management, server and parking space lock |
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Application publication date: 20190125 |