CN110335491A - Parking space detector and control method of parking - Google Patents
Parking space detector and control method of parking Download PDFInfo
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- CN110335491A CN110335491A CN201810273617.9A CN201810273617A CN110335491A CN 110335491 A CN110335491 A CN 110335491A CN 201810273617 A CN201810273617 A CN 201810273617A CN 110335491 A CN110335491 A CN 110335491A
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07B—TICKET-ISSUING APPARATUS; FARE-REGISTERING APPARATUS; FRANKING APPARATUS
- G07B15/00—Arrangements or apparatus for collecting fares, tolls or entrance fees at one or more control points
- G07B15/02—Arrangements or apparatus for collecting fares, tolls or entrance fees at one or more control points taking into account a variable factor such as distance or time, e.g. for passenger transport, parking systems or car rental systems
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/14—Traffic control systems for road vehicles indicating individual free spaces in parking areas
- G08G1/145—Traffic control systems for road vehicles indicating individual free spaces in parking areas where the indication depends on the parking areas
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- General Physics & Mathematics (AREA)
- Business, Economics & Management (AREA)
- Finance (AREA)
- Traffic Control Systems (AREA)
- Devices For Checking Fares Or Tickets At Control Points (AREA)
Abstract
The present invention provides a kind of parking space detector and the control method of parking applied to the parking space detector, the parking space detector includes: control module, for judging current parking space state information according to the change of magnetic field strength value, and judging that the parking space state information is to control reading when vehicle drives into state and differentiate the electronic license plate information on the current parking stall；Magnetic induction measurement module, the magnetic field strength that wakes up the control module when for detecting the change of magnetic field strength of the current parking stall, and will test out are sent to the control module；Communication module is settled accounts with the parking fee to vehicle on the current parking stall for sending the electronic license plate information that the control module receives, the parking space state information to server, additionally includes battery module.The present invention can be realized parking stall networking and quickly find vacant parking stall, realize that parking stall is associated with vehicle by the identification of electronic license plate, final realize quickly stops and pay dues.
Description
Technical field
The present invention relates to the present invention relates to intelligent parking technical field more particularly to parking space detector and controlling parties of parking
Method.
Background technique
With the rapid development of urban economy, living standard is constantly promoted, and sharp increase is presented in the volume of holding of automobile
Trend, resource of parking will face severe shortage, and traffic congestion, traffic accident, parking difficulty, parking offense for thus causing etc. are existing
As being on the rise.How vacant parking stall is rapidly searched out, parking is rapidly completed automatically and pays dues becomes the following wisdom parking hair
A kind of inexorable trend of exhibition.
With the development of RFID technique, electronic license plate is improved in the important sex consciousness of intelligent transportation field, and country is to electronics
License plate is increasingly paid attention to, and starts gradually to popularize electronic license plate, inevitable comprehensively universal in the following some day.
Currently, curb parking commonly uses magnetosensitive geomagnetic parking stall detector, although being able to achieve parking stall networking, rapidly find
Parking stall, but still need the person's of parking input parking stall coding or patrol officer to record license plate and pay dues to carry out parking, and detect standard
True rate is not high；And parking lot video gate identifying system can only realize that Car license recognition is paid dues, and cannot achieve parking stall networking, Wu Farang
Parking person quick and precisely finds vacant parking stall and stops, and this video recognition system is by the bad weathers such as sleet and speed
Interference, and can not be applied in parking position.
Therefore, existing technical solution, it is incomplete in terms of quickly finding parking stall and stopping and realize automatic pay dues, and
The idle parking stall that personal private parking stall cannot flexibly be shared is not easy to the construction of future city wisdom traffic, limits parking stall measure
Device large-scale use in urban transportation construction.
Summary of the invention
In view of the above problems, the present invention proposes a kind of parking space detector and the controlling party of parking applied to the parking space detector
Method realizes that vacant parking stall is quickly found in parking stall networking by communication module, reads and differentiate by radio frequency module for reading and writing and work as front truck
Position information of vehicles realizes that parking stall is associated with vehicle, and final realize quickly stops and pay dues.
To solve the above problems, the present invention uses the technical solution of following various aspects:
In a first aspect, the embodiment of the invention provides a kind of parking space detectors, comprising:
Control module, for judging current parking space state information according to the change of magnetic field strength value, and judging
Stating parking space state information is that control reads and differentiates the electronic license plate information on the current parking stall when vehicle drives into state；
Magnetic induction measurement module wakes up the control mould when for detecting the change of magnetic field strength of the current parking stall
Block, and the magnetic field strength that will test out is sent to the control module；
Communication module, for sending electronic license plate information, the parking space state information that the control module receives extremely
Server is settled accounts with the parking fee to vehicle on the current parking stall；
Battery module, for powering to the control module, the magnetic induction measurement module and the communication module.
Specifically, the parking space detector further includes radio frequency module for reading and writing, the radio frequency module for reading and writing is for reading and sentencing
Electronic license plate information near not current parking stall on vehicle, and differentiate that the electronic license plate information of vehicle is driven into current parking stall, and will
The electronic license plate information is sent to control module.
Specifically, the parking space detector further includes electric power detection module, the electric power detection is for detecting electricity.
Preferably, the parking space detector further includes electronic switch, and the electronic switch is controlled by control module to control
The open and close of the magnetic induction measurement module and the communication module.
Second aspect is parked control method the present invention also provides one kind, is applied to any one of above-mentioned first aspect institute
The parking space detector stated, includes the following steps:
Receive the change of magnetic field strength value for the current parking stall that magnetic induction measurement module detects；
Judge the current parking space state information according to institute's received change of magnetic field strength value, and described in judge
Parking space state information is that control reads and differentiates the electronic license plate information on the current parking stall when vehicle drives into state；
The parking space state information and electronic license plate information are sent to server so that institute by the communication module
Server is stated to settle accounts the parking fee of the current parking stall.
Specifically, the parking space state information specifically further includes having vehicle to be driven out to state, at the time of vehicle is driven out to and vehicle
At the time of driving into.
Preferably, it is described according to the received change of magnetic field strength value of institute judge the current parking space state information it
Afterwards, further includes:
By the parking space state information be sent to the server so as to the server by the parking space state information into
Row updates and is sent to the vehicle driven into.
Preferably, the current parking space state information is judged according to the received change of magnetic field strength value, and sentencing
The disconnected parking space state information out is that control reads and differentiates that the electronic license plate on the current parking stall is believed when vehicle drives into state
Breath, specifically includes:
When judging that the parking space state information drives into state for vehicle, control opens radio frequency module for reading and writing to receive
The radio frequency module for reading and writing read and on the current parking stall that is sent after differentiating vehicle electronic license plate information.
Specifically, described judging that the parking space state information is that radio frequency read-write mould is opened in control when vehicle drives into state
Block reads and differentiates the electronic license plate information of vehicle on the current parking stall so as to the radio frequency module for reading and writing, specifically includes:
The radio frequency module for reading and writing issues radio frequency reading writing information；
The radio frequency module for reading and writing receives described in the reception of the electronic license plate label on the vehicle in current parking stall pre-determined distance
The response message fed back after radio frequency reading writing information；
The radio frequency module for reading and writing is decoded the response message to obtain the vehicle in current parking stall pre-determined distance
On electronic license plate information；
The radio frequency module for reading and writing believes the electronic license plate on the vehicle in current parking stall pre-determined distance according to preset algorithm
Breath is differentiated, with the electronic license plate information of the vehicle on the current parking stall of determination.
Specifically, described judge the current parking space state information according to the received change of magnetic field strength value of institute, have
Body includes:
The variable quantity for detecting the magnetic field strength of the parking stall, when the variable quantity for detecting the magnetic field strength is greater than default threshold
When value, judge that the parking space state information of the parking stall drives into state for vehicle；
Alternatively, judging the parking stall shape of the parking stall when the variable quantity for detecting the magnetic field strength is less than preset threshold
State information is to have vehicle to be driven out to state.
Preferably, described to judge the current parking space state information according to the received change of magnetic field strength value, and
Judging that the parking space state information is to control reading when vehicle drives into state and differentiate the electronics vehicle on the current parking stall
Board information, specifically further include:
When judging that the parking space state information drives into state for vehicle, the electronic switch closure of control connection battery module
Electric power detection module is opened with control, the electric power detection module is for detecting information about power.
Specifically, described be sent to service by the communication module for the parking space state information and electronic license plate information
After device is so that the server settles accounts the parking fee of the current parking stall, further includes:
The radio frequency module for reading and writing and the electric power detection module are closed in control module control.
Specifically, described be sent to service by the communication module for the parking space state information and electronic license plate information
Device specifically includes so that the server settles accounts the parking fee of the current parking stall:
Control open communication module is received after the parking space state information so that the communication module is by the parking space state
Information is sent to the server, so that at the time of the server drives into according to the vehicle, when the vehicle is driven out to
It carves, electronic license plate information and default charging algorithm carry out charging to the parking fee of the corresponding vehicle of the license board information.
Preferably, described that the parking space state information and electronic license plate information are sent to service by the communication module
Device is so that the server settles accounts the parking fee of the current parking stall, specifically further include:
The information about power is obtained to the electric power detection module, and the information about power is sent to the communication module
So that the communication module externally sends the information about power.
Specifically, described be sent to service by the communication module for the parking space state information and electronic license plate information
After device is so that the server settles accounts the parking fee of the vehicle of the current parking stall, further includes:
The communication module is closed in control, into dormant state.
Specifically, the electric power detection module adds up electric power detection side by charge using the voltameter chip DS2780
Method is to detect electricity.
Compared with the existing technology, technical solution of the present invention at least has following advantage:
1, the present invention provides a kind of parking space detector comprising: control module, for according to the change of magnetic field strength value
Judge current parking space state information, and is judging that the parking space state information is to control to read and differentiate when vehicle drives into state
Electronic license plate information on the current parking stall；Magnetic induction measurement module, for detecting the magnetic field strength of the current parking stall
The magnetic field strength that wakes up the control module when variation, and will test out is sent to the control module；Communication module, for sending out
The electronic license plate information of sending the control module to receive, the parking space state information to server are on the current parking stall
The parking fee of vehicle is settled accounts, and the battery module for modules power supply is additionally included.The present invention passes through above-mentioned each module
Between cooperation can be realized quickly stop and pay parking fee automatically.
2, the present invention also provides a kind of control method of parking applied to the parking space detector, the method passes through reception
The change of magnetic field strength value for the current parking stall that magnetic induction measurement module detects；According to the received change of magnetic field strength value
Judge the current parking space state information, and is judging that the parking space state information is that control is read simultaneously when vehicle drives into state
Differentiate the electronic license plate information stated on current parking stall；The parking space state information and electronic license plate information are passed through into the communication mould
Block is sent to server so that the server settles accounts the parking fee of vehicle on the current parking stall.This method passes through
The detection of parking space state is realized in the variation for detecting the magnetic field strength of parking stall, then by the electronic license plate information of identification vehicle, by this
Electronic license plate information is sent to backstage charging system to realize automatic charging, promotes user experience.
3, the parking space state information can also be sent to the server so that the server will be described by the present invention
Parking space state information is updated, and the parking space state information is sent to the vehicle driven into when vehicle enters parking lot,
Idle parking stall can be quickly found according to the parking space state information to enter the vehicle in parking lot, realize quickly parking.
To sum up, the present invention solves in the prior art, quickly finds parking stall and stops and realize that the mechanism paid dues automatically is inadequate
It is perfect, and the problem of cannot flexibly share the idle parking stall of personal private parking stall, user experience is promoted, future city is facilitated
Wisdom traffic construction.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those skilled in the art, without creative efforts, it can also be obtained according to these attached drawings other attached
Figure.
Fig. 1 is parking space detector system construction drawing of the invention；
Fig. 2 is a kind of embodiment flow diagram of control method of parking of the invention.
Specific embodiment
In order to enable those skilled in the art to better understand the solution of the present invention, below in conjunction in the embodiment of the present invention
Attached drawing, technical scheme in the embodiment of the invention is clearly and completely described.
In some processes of the description in description and claims of this specification and above-mentioned attached drawing, contain according to
Multiple operations that particular order occurs, but it should be clearly understood that these operations can not be what appears in this article suitable according to its
Sequence is executed or is executed parallel, and the serial number of operation such as S11, S12 etc. be only used for distinguishing each different operation, serial number
It itself does not represent and any executes sequence.In addition, these processes may include more or fewer operations, and these operations can
To execute or execute parallel in order.It should be noted that the description such as " first " herein, " second ", is for distinguishing not
Same message, equipment, module etc., does not represent sequencing, does not also limit " first " and " second " and be different type.
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description in which the same or similar labels are throughly indicated same or similar element or has same or like function
Element.Obviously, described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based on this
Embodiment in invention, those skilled in the art's every other implementation obtained without creative efforts
Example, shall fall within the protection scope of the present invention.
Referring to Fig. 1, Fig. 1 is parking space detector system construction drawing of the present invention.A kind of parking stall provided by the present invention
Detector, specifically in a kind of embodiment, including control module 11, magnetic induction measurement module 12, communication module 13 and electricity
Pond module 14, in addition, the parking space detector further includes radio frequency module for reading and writing 15, electric power detection module 16 and electronic switch
17.Wherein,
Control module 11 for judging current parking space state information according to the change of magnetic field strength value, and is being judged
The parking space state information is that control reads and differentiates the electronic license plate information on the current parking stall when vehicle drives into state.
As shown in Figure 1, the 11 magnetic induction measurement module 12 of control module is connected in the embodiment of the present invention, magnetic strength is received
The change of magnetic field strength value for answering detection module 12 to send, and parking space state information is judged according to the change of magnetic field strength value.It is described
Control module 11 uses STM32 super low-power consumption processor.Specifically, the control module 11 is micro-control unit, also known as monolithic
Microcomputer or single-chip microcontroller, by CPU, RAM of computer, ROM, timer conter and a variety of I/O Interface integrations one
Label on piece forms the computer of chip-scale, does various combination control for different applications.
The control module 11 is connected with radio frequency module for reading and writing 15, is judging that the parking space state information sails for vehicle
Entering state is that control opens radio frequency module for reading and writing 15 to read and differentiate electronic license plate information.
The control module 11 is connected with communication module 13, and control is opened logical after reading and differentiating electronic license plate information
Believe module 13 the parking space state information and the electronic license plate information are sent to service by the communication module 13
Device carries out parking fee clearing.
In addition, the control module 11 is also connected with electric power detection module 16 and battery module 14, to control electricity inspection
Survey the open and close of module 16.
In the embodiment of the present invention, the control module 11 executes step: current according to change of magnetic field strength value judgement
Parking space state information, and judging that the parking space state information is to control reading when vehicle drives into state and differentiate described current
When electronic license plate information on parking stall, concrete principle is as follows:
The present invention can be by the threshold value of one magnetic strength Strength Changes amount of setting, when control module 11 detects the magnetic field
When the variable quantity of intensity is greater than preset threshold, judge that the parking space state information of the parking stall drives into state for vehicle, otherwise, judgement
The parking space state information is that vehicle is driven out to state.The parking space state information specifically further includes having that vehicle is driven out to state, vehicle is sailed
At the time of out and at the time of vehicle drives into, it may thereby determine that the period of vehicle parking on the parking stall should with final foundation
Period settles accounts the parking fee of vehicle on current parking stall.
For example, when only needing to judge by the variable quantity of the magnetic field strength on some axis parking space state information, it is only necessary to
One threshold value is set to the variable quantity of the magnetic field strength on the axis, is then judged as that vehicle drives into state when the threshold value is exceeded, it is no
Then be judged as that vehicle is driven out to state, wherein if when the variable quantity of the magnetic field strength be higher than the threshold value, when and be lower than the threshold
Value then judges parking space detector exception, and carries out alert process to the exception information or otherwise remind user, with
Just user is handled in time.
Further, judging that the parking space state information is that radio frequency module for reading and writing is opened in control when vehicle drives into state
15 so that the radio frequency module for reading and writing 15 is read and differentiates the electronic license plate information of vehicle on the current parking stall and feeds back to institute
Control module 11 is stated, while providing magnetic field power supply for passive electronic license plate label on vehicle.
Preferably, when judging that the parking space state information drives into state for vehicle, the electricity of control connection battery module 14
Sub switch closure opens electric power detection module 16 to control, and the electric power detection module 16 is for detecting information about power.
In the embodiment of the present invention, the control module 11 receives the parking stall shape that the radio frequency module for reading and writing 15 reads and differentiates
Open communication module 13 is controlled after state information and electronic license plate information so that the communication module 13 believes the parking space state
Breath and the electronic license plate information be sent to the server so that the server according to the parking space state information,
Electronic license plate information and default charging algorithm carry out charging to the corresponding vehicle of the license board information.
For example, the relevant information of multiple parking stalls has been prestored in backstage charging system, number, parking stall shape including parking stall
State information drives into vehicle residence time in the electronic license plate information and each parking stall of vehicle on the parking stall of state in vehicle
The information such as section.The parking space detector using control method of the present invention of parking wherein is mounted on each parking stall, it is described each
Parking space detector is sent to backstage charging system after obtaining the parking space state information and electronic license plate information of its parking stall.After described
Platform charge system according to the parking space state information of built-in charging algorithm and received each parking stall, electronic license plate information and
The time of stoppage of vehicle carries out the calculating of parking fee, and the account of association user is deducted fees automatically, convenient and efficient.
Further, the control module 11 obtains the information about power to the electric power detection module 16, and will be described
Information about power is sent to the communication module 13 so that the communication module 13 externally sends the information about power.
Further, the parking space state information and the electronic license plate information are sent to institute by the communication module 13
After stating server, the radio frequency module for reading and writing 15 and the electric power detection module 16 are closed in the control of control module 11, and
The communication module 13 is closed in control, and the control module 11 enters dormant state.The dormant state is expressed as the control
Module 11 controls the output for turning down or closing a part of voltage, so that premise is not influence described into battery saving mode
Control module 11 closes the output of a part of voltage in the case where restarting work.
Magnetic induction measurement module 12 wakes up the control mould when for detecting the change of magnetic field strength of the current parking stall
Block, and the change of magnetic field strength value that will test out is sent to the control module.
In the embodiment of the present invention, the magnetic induction measurement module 12 preferably uses PN13156, PN13104 and PN13101 structure
At special with performances such as high-resolution, low-power consumption, high-strength anti-noise jamming ability, Larger Dynamic measurement range and high sampling rates
Point.
In the embodiment of the present invention, the change of magnetic field strength value of current parking stall is detected by magnetic induction measurement module 12, and
When detecting change of magnetic field strength value, wake up control module 11 so as to the control module 11 by the change of magnetic field strength value into
One step judges the parking space state information of current parking stall.
Earth's magnetic field is the low-intensity magnetic field that a magnetic field strength changes with position and time change, and average induction is
50000-60000nT.When no external magnetic field is interfered, sensor internal magneto-resistive current Density Vector is generally presented linearly
State；When external magnetic field disturbance, current density vectors can deviate certain angle, therefore, electric current with direction of an electric field because of Hall effect
Size and Orientation will change, resistance value will change.
Based on principles above, in a kind of possible embodiment of the invention, the magnetic induction measurement module is using following
Mode detects change of magnetic field strength value:
The magnetic induction measurement module 12 acquires the magnetic field distribution of current parking stall, including the magnetic on xyz axis
The distribution of field intensity is driven out to state with the parking stall vehicle obtained in advance by magnetic field distribution on three directions will acquire
Magnetic field distribution compares the parking space state information to judge current parking stall.
Example is set: on the parking stall M for being equipped with parking space detector of the present invention, XYZ axis when having recorded car-free status on the parking stall
If the magnetic strength intensity distribution in all directions is (M1, M2, M3), after vehicle drives into the parking stall in XYZ axis all directions
Change of magnetic field strength is (M4, M5, M6), then control module described in the magnetic induction measurement data bits.
In another embodiment of the present invention, when entering parking lot due to vehicle, only to the magnetic strength on some direction
Intensity is affected, and the influence to other both directions is smaller, therefore when detection, if only needing to judge whether have vehicle in parking stall
It parks, it is not necessary to know the spatiality of vehicle parked, so that it may only with reference to the magnetic strength on this impacted biggish direction
Intensity and ignore other directions.
Specifically, when vehicle enters parking stall along the negative direction of X-axis, when vehicle enters parking stall, the magnetic field of X-axis generation
Variation is maximum, therefore, need to only read the variable quantity of magnetic field strength in X-axis, can judge the presence or absence of vehicle, Y by the variable quantity
Axis is vertical with X-axis with Z axis, and Z axis points into the sky, and Y-axis is vertical with vehicle heading, therefore is barely affected.Carry out
When whether having the parking space state infomation detection of vehicle parking on parking stall, only with reference to the magnetic field strength in X-axis, and other two axis can be with
Purposes is provided for the extension of other function, the spatial position state of vehicle is such as calculated by the magnetic induction intensity of three axis,
Driver is helped to standardize the functions such as parking to realize.
In the embodiment of the present invention, the parking space state information is sent to server by the control module 11, so as to described
The parking space state information that server update prestores, when vehicle enters parking lot, the server can be by the parking stall shape
State information is sent to vehicle the parking space state information is presented to user, so that vehicle driver is according to the parking space state
Information is quickly found out idle parking stall to realize quick parking.
Communication module 13, the parking stall comprising the electronic license plate information sent for receiving the control module 11
After status information, the current parking space state information is sent to server and is tied with the parking fee to the current parking stall
It calculates.
In the embodiment of the present invention, the communication module 13 is preferably using the remote super low-power consumption LoRa being made of SX1278
Module.The communication module 13 receives it after the parking space state information and electronic license plate information that the control module 11 is sent
It is sent to server, so that the server is calculated according to the parking space state information, electronic license plate information and default charging
Method carries out charging to the corresponding vehicle of the license board information.
Battery module 14 is used for the control module 11, the magnetic induction measurement module 12 and the communication module
13 power supplies.
The battery module 14 is using the battery pack of disposable ER+SPC super capacitor, and the service life is long, and self-discharge rate is low, realizes
The steady operation in adverse circumstances of -40 degree to 85 degree of high/low temperature.
Radio frequency module for reading and writing 15, for reading and differentiating the electronic license plate information of vehicle on the parking stall and by the electronics
License board information is sent to control module.
In the embodiment of the present invention, the control module 11 is when judging the parking space state information is that vehicle drives into state
Control opens radio frequency module for reading and writing 15 so that the radio frequency module for reading and writing 15 is read and differentiates the electricity of vehicle on the current parking stall
Sub- license board information simultaneously feeds back to the control module, while providing magnetic field power supply for passive electronic license plate label on vehicle.
In a kind of possible embodiment, the radio frequency module for reading and writing 15, which is read, simultaneously differentiates vehicle on the current parking stall
Electronic license plate information, specifically includes:
The radio frequency module for reading and writing 15 issues radio frequency reading writing information；
The radio frequency module for reading and writing 15 receives the electronic license plate label on the vehicle in current parking stall pre-determined distance and receives institute
State the response message fed back after radio frequency reading writing information；
The radio frequency module for reading and writing 15 is decoded the response message to obtain the vehicle in current parking stall pre-determined distance
Electronic license plate information on；
The radio frequency module for reading and writing 15 is according to preset algorithm to the electronic license plate on the vehicle in current parking stall pre-determined distance
Information is differentiated, with the electronic license plate information of the vehicle on the current parking stall of determination.
The present invention is passing through phase by the electronic license plate information of more vehicles near the available current parking stall of the mechanism
OFF signal strength information and distance relation algorithm, obtain the electronic license plate information of vehicle on this parking stall, in general, distance more it is remote then
The signal strength of acquisition is weaker, then getting the corresponding electronic license plate information of strongest signal strength is vehicle on this parking stall
Electronic license plate information.
Electric power detection module 16, for the electric power detection for detecting electricity.
The electric power detection module 16 adds up electric power detection method progress electric power detection using charge is made of DS2780.
Electronic switch 17 is controlled by control module 11 to control the magnetic induction measurement module 12 and the communication module
13 open and close.
Parking space detector of the present invention further includes electronic switch 17, the electronic switch 17 and the control module 11,
Electric power detection module 16, magnetic induction measurement mould 12 and communication module 13 are connected so that the control module 11 passes through the electricity
Sub switch 17 controls opening for the control module 11, electric power detection module 16, magnetic induction measurement module 12 and communication module 13
It opens and closes.
Referring to FIG. 2, the present invention also provides a kind of control method of parking applied to the parking space detector, the method
The control module is implemented in, in one of embodiment, which comprises
S110, the change of magnetic field strength value for receiving the current parking stall that magnetic induction measurement module detects.
In the embodiment of the present invention, the change of magnetic field strength value of current parking stall is detected by magnetic induction measurement module, and is being examined
When measuring change of magnetic field strength value, control module is waken up so that the control module is further sentenced by the change of magnetic field strength value
Break the parking space state information of current parking stall.
If earth's magnetic field is the magnetic field that a magnetic field strength changes with position and time change, average induction is
50000-60000nT.When no external magnetic field is interfered, sensor internal magneto-resistive current Density Vector is generally presented linearly
State；When external magnetic field disturbance, current density vectors can deviate certain angle, therefore, electric current with direction of an electric field because of Hall effect
Size and Orientation will change, resistance value will change.
Based on principles above, in a kind of possible embodiment of the invention, the magnetic induction measurement module is using following
Mode detects change of magnetic field strength value:
The magnetic induction measurement module acquires the magnetic field distribution of current parking stall, including the magnetic field on xyz axis
The distribution of intensity is driven out to the magnetic of state by magnetic field distribution on three directions will acquire with the parking stall vehicle obtained in advance
Field intensity distribution compares the parking space state information to judge current parking stall.
Example is set: on the parking stall M for being equipped with parking space detector of the present invention, XYZ axis when having recorded car-free status on the parking stall
If the magnetic strength intensity distribution in all directions is (M1, M2, M3), after vehicle drives into the parking stall in XYZ axis all directions
Change of magnetic field strength is (M4, M5, M6), then control module described in the magnetic induction measurement data bits.
In another embodiment of the present invention, when entering parking lot due to vehicle, only to the magnetic strength on some direction
Intensity is affected, and the influence to other both directions is smaller, therefore when detection, if only needing to judge whether have vehicle in parking stall
It parks, it is not necessary to know the spatiality of vehicle parked, so that it may only with reference to the magnetic strength on this impacted biggish direction
Intensity and ignore other two direction.
Specifically, when vehicle enters parking stall along the negative direction of X-axis, when vehicle enters parking stall, the magnetic field of X-axis generation
Variation is maximum, therefore, need to only read the variable quantity of magnetic field strength in X-axis, can judge the presence or absence of vehicle, Y by the variable quantity
Axis is vertical with X-axis with Z axis, and Z axis points into the sky, and Y-axis is vertical with vehicle heading, therefore is barely affected.Carry out
When whether having the parking space state infomation detection of vehicle parking on parking stall, only with reference to the magnetic field strength in X-axis, and other two axis can be with
Purposes is provided for the extension of other function, the spatial position state of vehicle is such as calculated by the magnetic induction intensity of three axis,
Driver is helped to standardize the functions such as parking to realize.
In the embodiment of the present invention, the parking space state information is sent to server by the control module, so as to the clothes
Business device updates the parking space state information prestored, and when vehicle enters parking lot, the server can be by the parking space state
Information is sent to vehicle the parking space state information is presented to the user that parks, so that vehicle driver is according to the parking stall shape
State information is quickly found out idle parking stall to realize quick parking.
S111, the current parking space state information is judged according to the received change of magnetic field strength value, and judging
The parking space state information is that control reads and differentiates the electronic license plate information on the current parking stall when vehicle drives into state out.
Specifically, the present invention can be by setting the threshold value of a magnetic strength Strength Changes amount, when detecting the magnetic field
When the variable quantity of intensity is greater than preset threshold, judge that the parking space state information of the parking stall drives into state for vehicle, otherwise, judgement
The parking space state information is that vehicle is driven out to state.The parking space state information specifically further includes having that vehicle is driven out to state, vehicle is sailed
At the time of out and at the time of vehicle drives into, it may thereby determine that the parking stall vehicle drives into the period of state with final foundation
The period carrys out settlement of parking fee.
For example, when only needing to judge by the variable quantity of the magnetic field strength on some axis parking space state information, it is only necessary to
One threshold value is set to the variable quantity of the magnetic field strength on the axis, is then judged as that vehicle drives into state when the threshold value is exceeded, it is no
Then be judged as that vehicle is driven out to state, wherein if when the variable quantity of the magnetic field strength be higher than the threshold value, when and be lower than the threshold
Value then judges parking space detector exception, and carries out alert process to the exception information or otherwise remind user, with
Just user is handled in time.
Further, judging that the parking space state information is that radio frequency module for reading and writing is opened in control when vehicle drives into state
So that the radio frequency module for reading and writing reads and differentiate the electronic license plate information of vehicle on the current parking stall and feeds back to the control
Molding block, while magnetic field power supply is provided for passive electronic license plate label on vehicle.
In a kind of possible embodiment, the radio frequency module for reading and writing reads and differentiates the electricity of vehicle on the current parking stall
Sub- license board information, specifically includes:
The radio frequency module for reading and writing issues radio frequency reading writing information；
The radio frequency module for reading and writing receives described in the reception of the electronic license plate label on the vehicle in current parking stall pre-determined distance
The response message fed back after radio frequency reading writing information；
The radio frequency module for reading and writing is decoded the response message to obtain the vehicle in current parking stall pre-determined distance
On electronic license plate information；
The radio frequency module for reading and writing believes the electronic license plate on the vehicle in current parking stall pre-determined distance according to preset algorithm
Breath is differentiated, with the electronic license plate information of the vehicle on the current parking stall of determination.
The present invention is passing through phase by the electronic license plate information of more vehicles near the available current parking stall of the mechanism
OFF signal strength information and distance relation algorithm, obtain the electronic license plate information of vehicle on this parking stall, in general, distance more it is remote then
The signal strength of acquisition is weaker, then getting the corresponding electronic license plate information of strongest signal strength is vehicle on this parking stall
Electronic license plate information.
Preferably, when judging that the parking space state information drives into state for vehicle, the electronics of control connection battery module
It closes the switch to control unlatching electric power detection module, the electric power detection module is for detecting information about power.The electric power detection
Module uses the voltameter chip DS2780 to add up detection method of quantity of electricity by charge to detect electricity.
S112, the parking space state information and electronic license plate information by the communication module are sent to server so that
The server is obtained to settle accounts the parking fee of the current parking stall.
In the embodiment of the present invention, the control module receives the parking space state letter that the radio frequency module for reading and writing reads and differentiates
Control open communication module is so that the communication module is by the parking space state information and institute after breath and electronic license plate information
It states electronic license plate information and is sent to the server, so that the server is according to the parking space state information, electronic license plate
Information and default charging algorithm carry out charging to the corresponding vehicle of the license board information.
For example, the relevant information of multiple parking stalls has been prestored in backstage charging system, number, parking stall shape including parking stall
State information drives into the information such as vehicle residence time section in the electronic license plate information and each parking stall of vehicle on parking stall.It is wherein each
It is mounted with to obtain it using the parking space detector of control method of the present invention of parking, each parking space detector on a parking stall
Backstage charging system is sent to after the parking space state information and electronic license plate information of parking stall.The backstage charging system is in
The time of the parking space state information of the charging algorithm and received each parking stall set, electronic license plate information and stoppage of vehicle into
The calculating of row parking fee, and the account of association user is deducted fees automatically, it is convenient and efficient.
Further, the control module obtains the information about power to the electric power detection module, and by the electricity
Information is sent to the communication module so that the communication module externally sends the information about power.
Further, the parking space state information and the electronic license plate information are sent to described by the communication module
After server, the radio frequency module for reading and writing and the electric power detection module are closed in control module control, and control closing
The communication module, the control module enter dormant state.The dormant state is expressed as the control module control and turns down
Or the output of a part of voltage is closed, so that premise is that not influencing the control module restarts work into battery saving mode
The output of a part of voltage is closed in the case where work.
Based on the above embodiments it is found that the maximum beneficial effect of the present invention is:
The present invention provides a kind of parking space detector, by control module, magnetic induction measurement module, radio frequency module for reading and writing and
Cooperation between the modules such as communication module, which is realized, quickly stops and pays parking fee automatically.The present invention also provides one kind to be applied to institute
The control method of parking of parking space detector is stated, the method realizes parking space state by the variation of the magnetic field strength of detection parking stall
Detection, then by the electronic license plate information of identification vehicle, which is sent to backstage charging system to realize certainly
Dynamic charging, promotes user experience.
To sum up, the present invention solves in the prior art, quickly finds parking stall and stops and realize that the mechanism paid dues automatically is inadequate
It is perfect, and the problem of cannot flexibly share the idle parking stall of personal private parking stall, user experience is promoted, future city is facilitated
Wisdom traffic construction.
A kind of mobile terminal provided by the present invention is described in detail above, for the general technology people of this field
Member, thought according to an embodiment of the present invention, there will be changes in the specific implementation manner and application range, in conclusion
The contents of this specification are not to be construed as limiting the invention.
Claims (16)
1. a kind of parking space detector, is pre-installed on ground characterized by comprising
Control module for judging current parking space state information according to the change of magnetic field strength value, and is judging the vehicle
Position status information is that control reads and differentiates the electronic license plate information on the current parking stall when vehicle drives into state；
Magnetic induction measurement module wakes up the control module when for detecting the change of magnetic field strength of the current parking stall, and
The magnetic field strength that will test out is sent to the control module；
Communication module, for sending electronic license plate information, the parking space state information to service that the control module receives
Device is settled accounts with the parking fee to vehicle on the current parking stall；
Battery module, for powering to the control module, the magnetic induction measurement module and the communication module.
2. parking space detector as described in claim 1, which is characterized in that the parking space detector further includes radio frequency read-write mould
Block, the radio frequency module for reading and writing are used to read and differentiate the electronic license plate information near current parking stall on vehicle, and differentiate current
The electronic license plate information of vehicle is driven into parking stall, and the electronic license plate information is sent to control module.
3. parking space detector as described in claim 1, which is characterized in that the parking space detector further includes electric power detection mould
Block, the electric power detection is for detecting electricity.
4. parking space detector as described in claim 1, which is characterized in that the parking space detector further includes electronic switch, institute
It states electronic switch and is controlled by control module to control the open and close of the magnetic induction measurement module and the communication module.
The control method 5. one kind is parked, applied to the parking space detector as described in any one of Claims 1-4, feature
It is, includes the following steps:
Receive the change of magnetic field strength value for the current parking stall that magnetic induction measurement module detects；
The current parking space state information is judged according to the received change of magnetic field strength value, and is judging the parking stall
Status information is that control reads and differentiates the electronic license plate information on the current parking stall when vehicle drives into state；
The parking space state information and electronic license plate information are sent to server so that the clothes by the communication module
Business device settles accounts the parking fee of vehicle on the current parking stall.
6. method as claimed in claim 5, which is characterized in that the parking space state information specifically further includes having vehicle to be driven out to shape
At the time of state, vehicle are driven out to and at the time of vehicle drives into.
7. method as claimed in claim 5, which is characterized in that described according to the received change of magnetic field strength value judgement of institute
After the current parking space state information, further includes:
The parking space state information is sent to the server so that the server carries out the parking space state information more
Newly and it is sent to the vehicle driven into.
8. method as claimed in claim 5, which is characterized in that according to described in the received change of magnetic field strength value judgement of institute
Current parking space state information, and judging that the parking space state information is to control reading when vehicle drives into state and differentiate described
Electronic license plate information on current parking stall, specifically includes:
Judging that the parking space state information is that control unlatching radio frequency module for reading and writing is described to receive when vehicle drives into state
Radio frequency module for reading and writing read and on the current parking stall that is sent after differentiating vehicle electronic license plate information.
9. method according to claim 8, which is characterized in that described to judge that the parking space state information drives into for vehicle
Control opens radio frequency module for reading and writing so that the radio frequency module for reading and writing is read and differentiates vehicle on the current parking stall when state
Electronic license plate information, specifically includes:
The radio frequency module for reading and writing issues radio frequency reading writing information；
The radio frequency module for reading and writing receives the electronic license plate label on the vehicle in current parking stall pre-determined distance and receives the radio frequency
The response message fed back after reading writing information；
The radio frequency module for reading and writing is decoded the response message to obtain on the vehicle in current parking stall pre-determined distance
Electronic license plate information；
The radio frequency module for reading and writing according to preset algorithm to the electronic license plate information on the vehicle in current parking stall pre-determined distance into
Row differentiates, with the electronic license plate information of the vehicle on the current parking stall of determination.
10. method as claimed in claim 5, which is characterized in that described to sentence according to the received change of magnetic field strength value
Break the current parking space state information, specifically include:
The variable quantity for detecting the magnetic field strength of the parking stall, when the variable quantity for detecting the magnetic field strength is greater than preset threshold
When, judge that the parking space state information of the parking stall drives into state for vehicle；
Alternatively, judging the parking space state letter of the parking stall when the variable quantity for detecting the magnetic field strength is less than preset threshold
Breath is to have vehicle to be driven out to state.
11. method as claimed in claim 5, which is characterized in that described to sentence according to the received change of magnetic field strength value
Break the current parking space state information, and is judging that the parking space state information is that control is read and sentenced when vehicle drives into state
Electronic license plate information on the not described current parking stall, specifically further include:
When judging that the parking space state information drives into state for vehicle, the electronic switch of control connection battery module is closed to control
System opens electric power detection module, and the electric power detection module is for detecting information about power.
12. method as claimed in claim 11, which is characterized in that described by the parking space state information and electronic license plate information
Server is sent to by the communication module so that the server carries out the parking fee of vehicle on the current parking stall
After clearing, further includes:
The radio frequency module for reading and writing and the electric power detection module are closed in control module control.
13. method as claimed in claim 6, which is characterized in that described by the parking space state information and electronic license plate information
Server is sent to by the communication module so that the server settles accounts the parking fee of the current parking stall, is had
Body includes:
Control open communication module is received after the parking space state information so that the communication module is by the parking space state information
Be sent to the server so that at the time of the server drives into according to the vehicle, at the time of the vehicle is driven out to, electricity
Sub- license board information and default charging algorithm carry out charging to the parking fee of the corresponding vehicle of the license board information.
14. method as claimed in claim 11, which is characterized in that described by the parking space state information and electronic license plate information
Server is sent to by the communication module so that the server settles accounts the parking fee of the current parking stall, is had
Body further include:
Obtain the information about power to the electric power detection module, and the information about power is sent to the communication module so that
It obtains the communication module and externally sends the information about power.
15. method as claimed in claim 5, which is characterized in that described by the parking space state information and electronic license plate information
Server is sent to by the communication module so that the server carries out settling accounts it to the parking fee of the current parking stall
Afterwards, further includes:
The communication module is closed in control, into dormant state.
16. method as claimed in claim 11, which is characterized in that the electric power detection module uses the voltameter chip
DS2780 adds up detection method of quantity of electricity by charge to detect electricity.
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| CN201810273617.9A CN110335491A (en) | 2018-03-29 | 2018-03-29 | Parking space detector and control method of parking |
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| CN201810273617.9A CN110335491A (en) | 2018-03-29 | 2018-03-29 | Parking space detector and control method of parking |
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