CN103942974B - A kind of methods, devices and systems of detection vehicles two mooring spaces occupancy - Google Patents
A kind of methods, devices and systems of detection vehicles two mooring spaces occupancy Download PDFInfo
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- CN103942974B CN103942974B CN201310024574.8A CN201310024574A CN103942974B CN 103942974 B CN103942974 B CN 103942974B CN 201310024574 A CN201310024574 A CN 201310024574A CN 103942974 B CN103942974 B CN 103942974B
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Abstract
The invention discloses a kind of methods, devices and systems of detection vehicles two mooring spaces occupancy.Methods described includes：In the inside or around of two mooring spaces, magnetisable material is set；Detect in this two mooring spaces, whether there are the vehicles using the adsorption of magnetisable material and the vehicles, wherein when there being the vehicles to enter two mooring spaces, magnetisable material produces the first exciting current with the electromagnetic induction of the vehicles；Sent according to the first exciting current and indicate the occupied radio frequency identification signal of this two mooring spaces.After application embodiments of the present invention, when the vehicles sail into or leave two mooring spaces, can passively detect the occupancy in space, need not actively real time detection signal, therefore can reduce energy loss.Embodiment of the present invention also reduces system cost, and the scope of application is widely.
Description
Technical field
The present invention relates to technical field of information processing, more particularly to detect the side of vehicles two mooring spaces occupancy
Method, device and system.
Background technology
With the raising developing rapidly with civil plantation level in city, the various vehicle fleet size in city constantly increases, therewith
And come is then that the demand of parking position of city main business area and residential block accordingly increases.In city public parking region,
The average running time that automobile is found required for two mooring spaces generally requires 3.5 minutes to 12 minutes, and the distance of consuming is then half
Mile is between 1 mile.Therefore in the urgent need to intelligent parking guiding and management system, to reduce traffic pressure, fuel-efficient and fall
Low air pollution.These systems need the authentic communication of automobile parking bit occupancy situation, and wherein automobile parking position not only includes greatly
The multilamellar of type is berthed, and also includes the two mooring spaces in street corner.
Some have been had to be used for detecting the common technology of vacant two mooring spaces at present, including：Ultrasonic sensor, infrared
Sensor, passive magnetic field sensor, video imaging process, microwave radar and laser radar sensor.Sensor and control centre
Between these sensors and various communication mode acquiescence powered using wire laying mode, be therefore typically concerned with sensor accurate
Degree, rather than energy expenditure.
Although wiring sensing solution is technically simple and part relative price is cheap, yet with wiring cost
Exist, the labour cost of install sensor is at a relatively high, therefore these schemes in most of complicated parking management system simultaneously
It is of little use.Berth in monitoring system in street corner, wiring is especially inconvenient and with high costs.Improve a thinking of wiring problem
It is to adopt wireless senser.However, in order to realize the occupancy of detection vehicles two mooring spaces and the wireless of detection signal
The functions such as communication, wireless senser still also needs to battery and provides power.
Therefore, in the urgent need to there being a kind of vehicles occupancy detection solution party that can save cost of layout and energy saving
Case.
Content of the invention
An embodiment of the invention proposes a kind of method of detection vehicles two mooring spaces occupancy, to save
The energy, reduces the operating cost of equipment.
The another one embodiment of the present invention also proposes a kind of device of detection vehicles two mooring spaces occupancy,
With energy saving, reduce the operating cost of equipment.
Yet further embodiment of the invention also proposes a kind of system of detection vehicles two mooring spaces occupancy, with
Energy saving, reduces the operating cost of equipment.
The technical scheme of embodiment of the present invention includes：
A kind of method of detection vehicles two mooring spaces occupancy, the method includes：In the inside of two mooring spaces or
Surrounding setting magnetisable material；
Detect in this two mooring spaces, whether there are the vehicles using the adsorption of magnetisable material and the vehicles, wherein when
When having the vehicles to enter two mooring spaces, magnetisable material produces the first exciting current with the electromagnetic induction of the vehicles；According to institute
State the first exciting current and send the sign occupied radio frequency identification signal of this two mooring spaces.Here " stop when there being the vehicles to enter
During pool space " any time that the vehicles enter in the whole process of two mooring spaces can be referred to, specifically autonomous parking is assorted
There is relation moment and position in two mooring spaces for the magnetisable material.Used here as " when there being the vehicles to enter two mooring spaces "
Refer to that the vehicles and the distance of magnetic medium are sufficient so that therebetween the adsorbing time.
Preferably said method further includes：When there being the vehicles to leave from two mooring spaces, magnetisable material and traffic work
The electromagnetic induction of tool produces the second exciting current, and this second exciting current is in opposite direction with described first exciting current；According to institute
State the second exciting current and send the radio frequency identification signal that this two mooring spaces of sign are released.
Preferably, described magnetisable material is arranged on the bottom of two mooring spaces；Described when have the vehicles enter two mooring spaces when,
Produce the first exciting current according to the electromagnetic induction of magnetisable material and the vehicles to include：When magnetisable material detects two mooring spaces
In when having the vehicles, magnetisable material makes magnetisable material move with respect to coil with the adsorption of the vehicles, thus
The first exciting current is produced in described coil.
Preferably, described magnetisable material is arranged on the bottom of two mooring spaces；Described when the vehicles has been detected from the sky that berths
Between when leaving, the electromagnetic induction of magnetisable material and the vehicles produces the second exciting current and includes：When magnetisable material detects friendship
, when two mooring spaces leave, the absorption consumption of magnetisable material and the vehicles is so that magnetisable material is with respect to line for logical instrument
Circle reverse movement, thus produce the second exciting current in described coil.
Preferably, described according to first exciting current send indicate the occupied radio frequency identification signal of this two mooring spaces include：
Direction according to the first exciting current determines sign this two mooring spaces occupied occupancy code, and writes in RFID tag
This occupancy code；Using indicating in the power described RFID tag of transmission of the first exciting current, this two mooring spaces is occupied to be accounted for
With code.
Preferably, described transmission according to the second exciting current indicates the radio frequency identification signal that is released of this two mooring spaces and includes：
Direction according to the second exciting current determines the release code that this two mooring spaces of sign are released, and writes in RFID tag
This release code；Send releasing of indicating in described RFID tag that this two mooring spaces is released using the power of the second exciting current
Put code.
A kind of device of detection vehicles two mooring spaces occupancy, this device includes exciting current generation unit and penetrates
Frequency identification signal transmitting unit, wherein said exciting current generation unit comprises magnetisable material, and this magnetisable material is arranged on
The inside or around of two mooring spaces；Described exciting current generation unit is used for, and the absorption using magnetisable material and the vehicles is made
With detection two mooring spaces in whether have the vehicles, wherein when have the vehicles enter two mooring spaces when, according to magnetisable material with
The electromagnetic induction of the vehicles produces the first exciting current；Described radio frequency identification signal transmitting element is used for, according to described first
Exciting current sends and indicates the occupied radio frequency identification signal of this two mooring spaces.
Preferably, described exciting current generation unit is further used for, when the vehicles is detected and leaving from two mooring spaces,
Magnetisable material produces the second exciting current, this second exciting current and the first exciting current direction with the electromagnetic induction of the vehicles
On the contrary；Described radio frequency identification signal transmitting element is further used for, and is sent according to described second exciting current and indicates this sky that berths
Between the radio frequency identification signal that is released.
Preferably, described exciting current generation unit is arranged at the bottom of two mooring spaces；Described exciting current generation unit is used
In when there being the vehicles to enter two mooring spaces, adsorption according to magnetisable material and the vehicles is so that magnetisable material phase
Coil is moved, thus producing the first exciting current in described coil.
Preferably, described exciting current generation unit is used for, and leaves from two mooring spaces when magnetisable material detects the vehicles
When, magnetisable material is disappeared so that magnetisable material moves backward with respect to coil with the adsorption of the vehicles, thus described
The second exciting current is produced in coil.
Preferably, described magnetisable material is Permanentmagnet bar, and described exciting current generation unit also includes being arranged on described Permanentmagnet bar
Neighbouring coil, fixed pulley and non-magnetic gravity block, the weight of wherein said non-magnetic gravity block is less than the weight of described Permanentmagnet bar,
Permanentmagnet bar and described non-magnetic gravity block are respectively positioned at the both sides of fixed pulley.
Preferably, described radio frequency identification signal transmitting element includes integrated circuit and antenna, wherein：Described integrated circuit is used
In, the direction according to the first exciting current determines sign this two mooring spaces occupied occupancy code, and in RFID tag
Write this occupancy code；Direction according to the second exciting current determines the release code that this two mooring spaces of sign are released, and in radio frequency
This release code is write in identification label；Described antenna is used for, and the power according to the first exciting current sends described radio frequency identification marking
Occupancy code in label, or the release code in described RFID tag is sent according to the power of the second exciting current.
Preferably, described integrated circuit includes comparator, diode group, RFID tag and micro-control unit.
A kind of system of detection vehicles two mooring spaces occupancy is it is characterised in that this system includes detecting traffic
The device of instrument two mooring spaces occupancy, radio frequency identification signal reading device and controller, wherein：The described detection vehicles
The device of two mooring spaces occupancy is located at the inside or around of two mooring spaces, for the suction using magnetisable material and the vehicles
Attached effect detection two mooring spaces in whether have the vehicles, wherein when have the vehicles enter two mooring spaces when, magnetisable material with
The electromagnetic induction of the vehicles produces the first exciting current, sends this two mooring spaces of sign according to described first exciting current occupied
Radio frequency identification signal；Described radio frequency identification signal reading device is used for, and reads this occupied radio frequency of sign two mooring spaces
Identification signal, and this radio frequency identification signal is sent to controller；Described controller is used for, and is sent based on this radio frequency identification signal
The occupied control signal of this two mooring spaces.
Preferably, the device of described detection vehicles two mooring spaces occupancy is further used for, when traffic work is detected
When two mooring spaces leave, the electromagnetic induction of magnetisable material and the vehicles produces the second exciting current to tool, and according to described the
Two exciting currents send and indicate radio frequency identification signal, this second exciting current and the first exciting current that this two mooring spaces is released
In opposite direction；Described radio frequency identification signal reading device is further used for, and reads and indicates the radio frequency knowledge that this two mooring spaces is released
Level signal, and this radio frequency identification signal is sent to controller；Described controller is further used for, based on described RF identification letter
Number send the control signal that this two mooring spaces is released.
Preferably, the device of described detection vehicles two mooring spaces occupancy is located at the bottom of this two mooring spaces, is used for
When the vehicles enter in two mooring spaces, magnetisable material produces adsorption so that magnetisable material is relative with the vehicles
Move in coil, thus producing the first exciting current.
Preferably, the device of described detection vehicles two mooring spaces occupancy is located at the bottom of this two mooring spaces, is used for
When magnetisable material has detected the vehicles and left from two mooring spaces, magnetisable material is disappeared with the adsorption of the vehicles,
Magnetisable material is moved backward in coil, thus producing the second exciting current.
A kind of machine-readable storage medium, stores for making machine execute according to the method described in any of the above one
Instruction.
A kind of computer program, makes described machine execution according to take up an official post when described computer program runs in machine
Method described in meaning one.
From technique scheme as can be seen that invention embodiment, the inside or around in two mooring spaces sets first
Put magnetisable material；Detect in this two mooring spaces whether there is the vehicles using the adsorption of magnetisable material and the vehicles, its
In when there being the vehicles to enter two mooring spaces, the electromagnetic induction according to magnetisable material and the vehicles produces the first excitation electricity
Stream；Recycle the first exciting current to send and indicate the occupied radio frequency identification signal of this two mooring spaces.As can be seen here, apply this
After bright embodiment, when the vehicles sail into, space hold situation can be passively detected, and need not actively go in real time
Detection signal, therefore energy loss can be lowered.
And, embodiment of the present invention can produce energy by itself being based on electromagnetic induction, without battery or various wiring
Intervention.Therefore, embodiment of the present invention also reduces system cost while reducing energy loss.
Further, embodiment of the present invention can produce energy, radio frequency identification marking with itself during the detection vehicles
Label can send radio frequency identification signal in the range of distance using this energy（Up to 200 meters of radiuses）RF identification read
Device, therefore each radio frequency identification signal reader can read large-scale reception and berth bit occupancy information, the therefore present invention in fact
Apply the scope of application of mode also widely.
Brief description
Fig. 1 is the method flow diagram of the detection vehicles two mooring spaces occupancy of embodiment of the present invention；
Fig. 2 detects the schematic diagram of vehicles two mooring spaces occupancy for embodiment of the present invention；
Fig. 3 is the vehicles autonomous parking schematic diagram described in embodiment of the present invention；
Fig. 4 is the structure drawing of device of the detection vehicles two mooring spaces occupancy described in embodiment of the present invention；
Fig. 5 detects the device operating diagram of vehicles two mooring spaces occupancy for embodiment of the present invention；
Fig. 6 is the integrated circuit structure figure in embodiment of the present invention radio frequency identification signal transmitting element；
Fig. 7 detects the system construction drawing of vehicles two mooring spaces occupancy for embodiment of the present invention；
Fig. 8 detects the system arrangement schematic diagram of vehicles two mooring spaces occupancy for embodiment of the present invention.
Specific embodiment
In order that technical scheme and advantage become more apparent, below in conjunction with drawings and the embodiments, to this
Invention is further elaborated.It should be appreciated that specific embodiment described herein is only in order to illustrative explanation originally
Invention, the protection domain being not intended to limit the present invention.
Fig. 1 is the method flow diagram of the detection vehicles two mooring spaces occupancy of embodiment of the present invention.
As shown in figure 1, the method includes：
Step 101：In the inside or around of two mooring spaces, magnetisable material is set.
Here, two mooring spaces are used for berthing the physical space of the vehicles, can in the inside of this physical space or
Surrounding setting magnetisable material.When arranging magnetisable material inside vehicles two mooring spaces, the sky that berths such as can be arranged on
Between bottom, top, any position in the two mooring spaces such as sidepiece.When setting magnetic around this vehicles two mooring spaces
Property material when, such as can be arranged on outside vehicles two mooring spaces, and be located at magnetisable material magnetic absorption act on effective model
Any position within enclosing.
Metal is contained in a large number in the elements such as the engine of the vehicles, change speed gear box, power transmission shaft, axletree and suspension.Metal includes
Magnetic metalloid and non-ferrous metal, magnetisable material has very high detectivity to them.Ferromagnetic metalloid enters Magnetic Materials
The search coverage of matter will affect the magnetic line of force distribution of magnetisable material, and then have impact on magnetisable material magnetic flux within the specific limits.
The search coverage that non-ferromagnetic metalloid enters magnetisable material will produce eddy current effect, and the Distribution of Magnetic Field of magnetisable material also can be made to occur
Change.The presence of magnetisable material, can detect the metal in two mooring spaces, thus inducing the presence of the vehicles.
Step 102：Detect in this two mooring spaces, whether there is traffic work using the adsorption of magnetisable material and the vehicles
Tool, wherein when the vehicles has been detected, magnetisable material produces the first exciting current with the electromagnetic induction of the vehicles.
The vehicles specifically can comprise various vehicles, such as taxi（Taxi）, private car, buses（Bus）, motor
Car（motorcycle）, bicycle etc., the vehicles can also be various ships, aviation aircraft, etc..
Based on the particular geographic location relation of magnetisable material and two mooring spaces, magnetisable material passes through electromagnetism sense with the vehicles
Should produce the first exciting current mode can have multiple.Such as：When magnetisable material being arranged the bottom of two mooring spaces, when
Magnetisable material is sensed by metal detection when having the vehicles in two mooring spaces, can be according to magnetisable material and the vehicles
Adsorption is so that magnetisable material moves with respect to coil, thus producing the first exciting current in coil.
Although being carried out to embodiment of the present invention with the bottom that magnetisable material is arranged two mooring spaces for example above
Illustrate, it will be appreciated by those of skill in the art that can also by magnetisable material arrange top, side of two mooring spaces etc. other
At position, or at the peripheral location outside magnetisable material is arranged positioned at two mooring spaces, embodiment of the present invention is to this simultaneously
Unlimited.
Step 103：Sent according to described first exciting current and indicate the occupied RF identification of this two mooring spaces（RFID,
Radio Frequency IDentification）Signal.
Here, can be determined according to the direction of the first exciting current and indicate this two mooring spaces occupied occupancy code, and
This occupancy code is write in RFID tag；Indicating in the power transmission RFID tag recycling the first exciting current should
Two mooring spaces occupied occupancy code, it is achieved thereby that the passive vehicles take detecting, and passive detection signal
Transmitting.
Specifically, the direction of the first exciting current and the right of sign two mooring spaces occupied occupancy code can be preset
Should be related to.After producing the first exciting current in being arranged on the coil near magnetisable material, it is possible to use the first exciting current
Direction determine and take code, and write this occupancy code in RFID tag, then recycle the work(of the first exciting current
Rate will indicate this two mooring spaces occupied occupancy code in RFID tag, launches as radio frequency identification signal.
In one embodiment, this method further includes：When the vehicles is detected and leaving from two mooring spaces, root
Electromagnetic induction according to magnetisable material and the vehicles produces the second exciting current, the wherein second exciting current and the first exciting current
In opposite direction；Recycle the second exciting current to send and indicate the radio frequency identification signal that this two mooring spaces is released.Similarly, at this
In embodiment, magnetisable material can be arranged the bottom of two mooring spaces, wherein when magnetisable material detect the vehicles from
When two mooring spaces leave, the absorption consumption according to magnetisable material and the vehicles is so that magnetisable material is in wound around coil
Reverse movement, thus produce the second exciting current in wound around coil.
Preferably, can be determined according to the direction of the second exciting current and indicate the release code that this two mooring spaces is released, and
This release code is write in RFID tag；Indicating in the power transmission RFID tag recycling the second exciting current should
The release code that two mooring spaces are released.
Specifically, the direction of the second exciting current and the right of sign two mooring spaces occupied occupancy code can be preset
Should be related to.After producing the second exciting current in coil, it is possible to use the direction of the second exciting current determines that indicating this berths
The release code that space is released, and write this release code in RFID tag, then recycle the second exciting current
Power will indicate the release code that this two mooring spaces is released in RFID tag, launches as radio frequency identification signal.
It can be seen that, the above-mentioned embodiment of the present invention discloses a kind of passive detection vehicles two mooring spaces occupancy
Method.Can using in vehicles detection process produce exciting current send sign this two mooring spaces occupied and
The radio frequency identification signal being released, therefore can not need various probe powers（Such as battery）, therefore save the energy, and
And eliminate various installation works.
Fig. 2 detects the schematic diagram of vehicles two mooring spaces occupancy for embodiment of the present invention.
As shown in Fig. 2 magnetisable material is arranged on the space bottom of position of berthing（I.e. in non-two mooring spaces, and it is in ground
Under）.This magnetisable material is specifically as follows Permanentmagnet bar 201, and Permanentmagnet bar 201 is wound around by coil 202, two fixed pulleys 204
For supporting Permanentmagnet bar 201 and non-magnetic gravity block 203, the abseiling of fixed pulley 204 is 205.
The weight of non-magnetic gravity block 203 is less than the weight of Permanentmagnet bar 201, Permanentmagnet bar 201 and non-magnetic gravity block 203 position respectively
Two-arm in fixed pulley 204.Can be by Permanentmagnet bar 201, wound around coil 202, fixed pulley 204, abseiling 205 and non-magnetic gravity block
203 are encapsulated into a bottom berthed within bit space positioned at the vehicles, or the general frame 206 of the bottom outside space
In.
Gravitational difference between Permanentmagnet bar 201 and non-magnetic gravity block 203 is △ W=WPermanentmagnet bar 201- WNon-magnetic gravity block 203, the value of △ W should
0 should be more than.When the space of position of berthing is space-time, because the weight of non-magnetic gravity block 203 is less than the weight of Permanentmagnet bar 201, permanent magnetism
Rod 201 is maintained at the bottom of framework 206.
When the vehicles are advanced into and berth, Permanentmagnet bar 201 is subject to the magnetic attraction with the vehicles.When this magnetic attraction
When power is more than the gravitational difference between Permanentmagnet bar 201 and non-magnetic gravity block 203, Permanentmagnet bar 201 is pulled upwardly liter.Due to magnetic attraction
It is inversely proportional to relative distance, during Permanentmagnet bar 201 is drawn high, the vehicles are increasing to the magnetic attraction of Permanentmagnet bar 201.
Move to the process at top in Permanentmagnet bar 201 from the bottom of framework 206, coil 202 can produce electric current I.Can be using electricity
Flow I to encourage and to write RFID label tag（It is shown without in Fig. 2）, this RFID label tag sending signal ONE at once（1）Read to RFID
Device（It is shown without in Fig. 2）, taken by the vehicles with indicating this two mooring spaces.
When the vehicles leave and berth, the magnetic attraction between Permanentmagnet bar 201 and the vehicles disappears.Due to non-magnetic
The weight of gravity block 203 is less than the weight of Permanentmagnet bar 201, and non-magnetic gravity block 203 will draw high upwards and Permanentmagnet bar 201 will be to moving down
Dynamic, electric current can be produced during this again in coil 202.Due to Permanentmagnet bar 201 moving direction in this process with
Contrary when the vehicles sail into, therefore, the now produced sense of current in coil 202, when also sailing process into the vehicles
In coil 202, produced electric current I is in opposite direction.This electric current encourages RFID label tag to work again, and writes in an rfid tag
Enter to indicate the FRID label information that vehicle information leaves position of berthing, this RFID label tag sending signal ZERO（0）Read to RFID
Take device, just leave position of berthing to indicate the vehicles, position of berthing is discharged by the vehicles.
It is set to the drive mechanisms such as a bottom and fixed pulley that berth above with magnetisable material real to the present invention for example
The mode of applying has been described in detail.It will be appreciated by those of skill in the art that actually magnetisable material can also be set to
Berth any positions such as a top, surrounding.When the set location of magnetisable material converts, the specific embodiment of drive mechanism
It is likely to needs and make corresponding change.Such as, the number of fixed pulley can change, or introduces movable pulley drive mechanism etc.
Deng.For another example, when magnetisable material is arranged on berth a top or surrounding when, just action of gravity cannot be relied on again to make Permanentmagnet bar
201 return in situ.In such a case, it is possible to make magnetisable material connect a spring, the vehicles leave when berthing, spring
Permanentmagnet bar 201 is made to return in situ.
Preferably, RFID label tag can be encapsulated in framework 206 further, or RFID label tag is placed in framework
206 top, thus the transmitting beneficial to RFID label tag signal.After RFID label tag is encapsulated with framework 206, can be with globality ground
Take detection sensor as a kind of passive vehicles.
Because RFID label tag can close on, using the vehicles, the power passive sending signal producing in detection process, permissible
At certain position（Most 200 meters of radius）RFID reader is installed, to receive the letter of the RFID label tag in this read range
Number.
Fig. 3 is the vehicles autonomous parking schematic diagram described in embodiment of the present invention.
As shown in figure 3, the vehicles can be taken detection sensor install on the ground, and sensor is located at traffic
Below instrument.One or more RFID reader be arranged at a certain distance from ground on, with receive by the vehicles take detection
The RFID signal that in sensor, RFID label tag is sent.RFID label tag and RFID reader are located substantially in same horizontal plane, from
And wireless radiofrequency wave beam will not be disturbed by the metal shell of the vehicles or shield.
When there being the vehicles to sail parking stall into, output signal 1 is arrived by the detection sensor below the vehicles
RFID reader；When there being the vehicles to leave parking stall, output signal 0 is arrived RFID reader by detection sensor.One
RFID reader can be in read range（Can be to 200 meters）Read all of RFID label tag simultaneously.
In one embodiment of the present invention, a RFID reader can be simply used, multiple detection vehicles stop
Meeting the requirement of small-sized parking area, this main frame is used for entirely little for the sensor of pool space hold situation and main frame
Each two mooring spaces within type parking area carry out comprehensive holistic management.
In fact, for relatively large parking area, such as Multilayer parking center, or large-scale street corner dock area etc.,
Demand can jointly be met using multiple RFID reader, many vehicles occupancy detection sensors and a main frame.
RFID reader can be networked with long-range main frame.
It will be appreciated by those of skill in the art that the communication mode between RFID reader and main frame can have multiple realities
Apply mode, including but not limited to：Be directly connected to, cellular connection, WLAN（LAN）Or wireless wide area network（WAN）, etc.
Deng.In addition to being directly connected to, in addition it is also necessary to reader has extra integrated circuit in other connected modes.
For the ease of installing, the vehicles take detection sensor and can have polytype framework and packaged type.
Due to magnetic field penetration non-permanent magnetism material, can advantageously design framework with prevent overwork, accident infringement and artificial destruction, etc..
Based on above-mentioned labor, embodiment of the present invention also proposed a kind of detection vehicles two mooring spaces and takies shape
The device of condition.
Fig. 4 is the structure drawing of device of the detection vehicles two mooring spaces occupancy described in embodiment of the present invention.
As shown in figure 4, this device includes exciting current generation unit 401 and radio frequency identification signal transmitting element 402, wherein
Exciting current generation unit 401 comprises magnetisable material, and this magnetisable material is arranged among two mooring spaces or surrounding；
Exciting current generation unit 401, for detecting two mooring spaces using the adsorption of magnetisable material and the vehicles
In whether have the vehicles, wherein when the vehicles has been detected, the electromagnetic induction according to magnetisable material and the vehicles produces
Raw first exciting current；
Radio frequency identification signal transmitting element 402, indicates this two mooring spaces quilt for sending according to described first exciting current
The radio frequency identification signal taking.
In one embodiment, exciting current generation unit 401, is further used for when the vehicles is detected from berthing
When space is left, the electromagnetic induction according to magnetisable material and the vehicles produces the second exciting current, this second exciting current with
First exciting current is in opposite direction；
Radio frequency identification signal transmitting element 402, be further used for according to described second exciting current send indicate this berth
The radio frequency identification signal that space is released.
In one embodiment, exciting current generation unit 401 is arranged at the bottom of two mooring spaces.Now, encourage
Current generating unit 401, for when magnetisable material detects and has the vehicles in two mooring spaces, according to magnetisable material and traffic
The adsorption of instrument is so that magnetisable material moves in wound around coil, thus producing the first exciting current in wound around coil.
Exciting current generation unit 401, can also be further used for when magnetisable material detects the vehicles and leaves from two mooring spaces,
Consumption according to magnetisable material and the captivation of the vehicles so that magnetisable material moves backward in wound around coil, from
And producing the second exciting current in wound around coil, the second exciting current is in opposite direction with the first exciting current.
Although being carried out to embodiment of the present invention with the bottom that magnetisable material is arranged two mooring spaces for example above
Illustrate, it will be appreciated by those of skill in the art that can also by magnetisable material arrange top, side of two mooring spaces etc. other
At position, or at the peripheral location outside magnetisable material is arranged positioned at two mooring spaces, embodiment of the present invention is to this simultaneously
Unlimited.
Preferably, magnetisable material is Permanentmagnet bar, and this exciting current generation unit 401 also includes being wound around twining of described Permanentmagnet bar
Coiling, fixed pulley and non-magnetic gravity block, the weight of wherein said non-magnetic gravity block is less than the weight of described Permanentmagnet bar, permanent magnetism
Excellent and described non-magnetic gravity block is located at the two-arm of fixed pulley respectively.
In one embodiment, radio frequency identification signal transmitting element 402 specifically includes integrated circuit and antenna, wherein：
RFID tag can be included in integrated circuit.The direction that integrated circuit is used for according to exciting current determines sign
This two mooring spaces occupied occupancy code, and write this occupancy code in RFID tag；Side according to the second exciting current
Indicate, to determining, the release code that this two mooring spaces is released, and write this release code in RFID tag.Radio frequency identification marking
Sign, take code or release code for storage.Antenna, sends described RFID tag for the power according to the first exciting current
In occupancy code, or the release code in described RFID tag is sent according to the power of the second exciting current.
Preferably, integrated circuit specifically can be made up of multiple electronic devices and components, such as comprises comparator, radio frequency identification marking
Label, diode group and micro-control unit etc..
Based on above-mentioned labor, Fig. 5 detects the dress of vehicles two mooring spaces occupancy for embodiment of the present invention
Put operating diagram.
In Figure 5, the device of this detection vehicles two mooring spaces occupancy include integrated circuit 501, antenna 502 with
And exciting current generation unit 503, the wherein concrete structure of exciting current generation unit can be equal to the framework 206 in Fig. 2.
Integrated circuit first exciting current direction according to produced by framework 206 determines sign this two mooring spaces occupied occupancy code,
And write this occupancy code in RFID tag, wherein take code and be preferably 1；Integrated circuit can also be according to framework 206 institute
The direction of the second exciting current producing determines the release code that this two mooring spaces of sign are released, and writes in RFID tag
Enter this release code, wherein release code is preferably 0.RFID tag, takies code or release code for storage.Antenna, for root
Send the occupancy code in described RFID tag according to the power of the first exciting current, or sent out according to the power of the second exciting current
Send the release code in described RFID tag.
In embodiments of the present invention, integrated circuit can read the direction of input current and change the label letter of itself
Breath.Fig. 6 is the integrated circuit structure figure in embodiment of the present invention radio frequency identification signal transmitting element.
As shown in fig. 6, integrated circuit 601 includes two diodes 611 and 612, the leading of this two diode 611 and 612
Lead in opposite direction, and be connected respectively to two pins of comparator 613, wherein diode 611 is connected to positive pin；Two poles
Pipe 612 is connected to negative sense pin.The output of comparator 613 is connected to control unit 614（It is preferably MCU）, control unit 614 with
RFID tag（tag）615 connections.Integrated circuit 601 is connected with antenna further, and antenna is stored in radio frequency for transmission to be known
Label information in distinguishing label 615 and the mark of two mooring spaces（ID）.
Input current is directed to comparator 614 by diode 611 or 612 first, when the direction of input current is forward direction（As
Shown in Fig. 6 from left to right）When, comparator 613, it can be found that positive input pin value is more than reverse input pin value, therefore sends
ONE signal（I.e. 1）To control unit 614；When the direction of input current is reverse（As shown in Figure 6 from right to left）Shown, compare
Device 613, it can be found that positive input pin value is less than reverse input pin value, therefore sends ZERO signal（I.e. 0）To control unit
614.ONE signal or ZERO signal can be write label 615 by control unit 614.It can be seen that, integrated circuit not only can be circuit
Run and antenna sending signal provides power, the label information such as occupancy code or release code can also be write in label 615.
Based on above-mentioned analysis, embodiment of the present invention also proposed a kind of vehicles and takies detecting system.
Fig. 7 is to take detecting system structure chart according to the embodiment of the present invention vehicles.
As shown in fig. 7, this system includes the device detecting vehicles two mooring spaces occupancy comprising magnetisable material
701st, radio frequency identification signal reading device 702 and controller 703, wherein：
The device 701 of detection vehicles two mooring spaces occupancy, positioned at the relatively geographical position relationship of two mooring spaces
Place, for whether having the vehicles using in magnetisable material detection two mooring spaces, wherein when the vehicles has been detected, according to
Magnetisable material produces exciting current with the electromagnetic induction of the vehicles, is sent using described exciting current and indicates this two mooring spaces quilt
The radio frequency identification signal taking；
Radio frequency identification signal reading device 702, for reading this occupied radio frequency identification signal of sign two mooring spaces, and
This radio frequency identification signal is sent to controller；
Controller 703, for sending the occupied control signal of this two mooring spaces based on this radio frequency identification signal.
In one embodiment, the device 701 of detection vehicles two mooring spaces occupancy is further used for handing over
When two mooring spaces leave, the electromagnetic induction according to magnetisable material and the vehicles produces the second exciting current to logical instrument, and this
Two exciting currents are in opposite direction with the first exciting current, and released according to described second exciting current transmission this two mooring spaces of sign
The radio frequency identification signal put；Radio frequency identification signal reading device 702, is further used for reading what this two mooring spaces of sign were released
Radio frequency identification signal, and this radio frequency identification signal is sent to controller；
Controller, is further used for sending, based on this radio frequency identification signal, the control signal that this two mooring spaces is released.
In one embodiment, the device 701 of detection vehicles two mooring spaces occupancy is located at this two mooring spaces
Bottom, for when magnetisable material detects and has the vehicles in two mooring spaces, according to the suction of magnetisable material and the vehicles
Gravitation is so that magnetisable material moves in coil, thus producing the first exciting current.
Preferably, detect the device 701 of vehicles two mooring spaces occupancy, positioned at the bottom of this two mooring spaces, use
In when there being the vehicles to leave from two mooring spaces, the captivation event resolves of magnetisable material and the vehicles are so that Magnetic Materials
Matter moves backward in coil, thus producing the second exciting current.
For small-sized parking area, a RFID reader can be simply used, multiple vehicles take detection sensing
Device and main frame are meeting the requirement of small-sized parking area.
In fact, for relatively large parking area, such as Multilayer parking center, or large-scale street corner dock area etc.,
Can jointly network and meet need using multiple RFID reader, many vehicles occupancy detection sensors and a main frame
Ask, wherein each RFID reader and long-range main frame are networked.Fig. 8 takies detecting system for the embodiment of the present invention vehicles
Arrangement schematic diagram.As seen from Figure 8, each RFID reader has certain read range（Up to 200 meters of radiuses）, and respectively
The label information that individual RFID reader is read can be networked and is sent to long-range main frame, carry out United Dispatching control by main frame.
The detection traffic work that by the storing mode of instruction or instruction set storage, embodiment of the present invention can be proposed
The method of tool two mooring spaces occupancy is stored on various machine-readable storage mediums.But these storage mediums are included not
It is confined to：Floppy disk, CD, DVD, hard disk, flash memory, USB flash disk, CF card, SD card, mmc card, SM card, memory stick（Memory Stick）、
XD card etc..Furthermore it is also possible to the method for the detection vehicles two mooring spaces occupancy that embodiment of the present invention is proposed
It is applied to based on flash memory（Nandflash）Storage medium in, such as USB flash disk, CF card, SD card, SDHC card, mmc card, SM card, note
Recall rod, XD card etc..
Can also be by the method tool of the detection being proposed when embodiment of the present invention vehicles two mooring spaces occupancy
Body is embodied as various forms of computer instructions.When these computer instructions are performed in the machine, machine can be made to execute basis
The method of the detection vehicles two mooring spaces occupancy that invention embodiment is proposed.
In sum, in invention embodiment, setting magnetisable material geographical position relative with two mooring spaces first is closed
System；Detect in this two mooring spaces whether there is the vehicles using magnetisable material, wherein when there being the vehicles, according to magnetisable material
Produce exciting current with the electromagnetic induction of the vehicles；Recycle exciting current to send and indicate the occupied radio frequency of this two mooring spaces
Identification signal.As can be seen here, after application embodiment of the present invention, when the vehicles sail into or leave two mooring spaces, permissible
Space hold situation is passively detected, and need not in real time, actively remove detection signal, therefore energy loss can be dropped
Low.
And, embodiment of the present invention can produce energy by itself being based on electromagnetic induction, without battery, and using no
Line communication mode, need not various connect up.Therefore, embodiment of the present invention also reduces system while reducing energy loss
This.
Further, embodiment of the present invention can produce energy, RFID tag with itself in vehicles detection process
The RFID reader in the range of distance for the radio frequency identification signal, therefore each RF identification can be sent using this energy
Signal reader can read large-scale reception and berth bit occupancy information, the therefore scope of application of embodiment of the present invention very
Extensively.
The foregoing is only the better embodiment of the present invention, not in order to limit the present invention, all the present invention's
Any modification, equivalent and improvement made within spirit and principle etc., should be included within the scope of the present invention.
Claims (6)
1. a kind of method of detection vehicles two mooring spaces occupancy is it is characterised in that the method includes：
In the inside or around of two mooring spaces, magnetisable material is set；
Detect in this two mooring spaces, whether there are the vehicles using the adsorption of magnetisable material and the vehicles, wherein when there being friendship
When logical instrument enters two mooring spaces, magnetisable material and the vehicles produce adsorption and magnetisable material are moved with respect to coil
Dynamic, thus producing the first exciting current in described coil；
Sent according to described first exciting current and indicate the occupied radio frequency identification signal of this two mooring spaces；
When the vehicles leave from two mooring spaces, the adsorption of magnetisable material and the vehicles disappears so that magnetisable material
With respect to coil reverse movement, thus producing the second exciting current in described coil, this second exciting current and described first
Exciting current is in opposite direction；
Sent according to described second exciting current and indicate the radio frequency identification signal that this two mooring spaces is released,
Wherein, described according to first exciting current send indicate the occupied radio frequency identification signal of this two mooring spaces include：
Direction according to the first exciting current determines sign this two mooring spaces occupied occupancy code, and in RFID tag
Write this occupancy code；
Sent in described RFID tag using the power of the first exciting current and indicate this two mooring spaces occupied occupancy code.
2. according to claim 1 detection vehicles two mooring spaces occupancy method, wherein, described according to second
The radio frequency identification signal that exciting current transmission this two mooring spaces of sign are released includes：
Direction according to the second exciting current determines the release code that this two mooring spaces of sign are released, and in RFID tag
Write this release code；
Sent in described RFID tag using the power of the second exciting current and indicate the release code that this two mooring spaces is released.
3. a kind of device of detection vehicles two mooring spaces occupancy is it is characterised in that this device includes exciting current product
Raw unit and radio frequency identification signal transmitting element, wherein said exciting current generation unit comprises magnetisable material, and this magnetic
Material is arranged on the inside or around of two mooring spaces；
Described exciting current generation unit is used for, and being detected in two mooring spaces using the adsorption of magnetisable material and the vehicles is
No have the vehicles, and wherein when there being the vehicles to enter two mooring spaces, magnetisable material produces adsorption with the vehicles, makes
Obtain magnetisable material to move with respect to coil, thus producing the first exciting current in described coil；
Described radio frequency identification signal transmitting element is used for, and sends this two mooring spaces of sign according to described first exciting current occupied
Radio frequency identification signal；
Described exciting current generation unit is further used for, when the vehicles leave from two mooring spaces, magnetisable material and traffic
The adsorption of instrument disappears so that magnetisable material moves backward with respect to coil, thus produce second in described coil swashing
Encourage electric current, this second exciting current is in opposite direction with the first exciting current；
Described radio frequency identification signal transmitting element is further used for, and is sent according to described second exciting current and indicates this two mooring spaces
The radio frequency identification signal being released,
Wherein, described radio frequency identification signal transmitting element includes integrated circuit and antenna, wherein：
Described integrated circuit is used for, and the direction according to the first exciting current determines sign this two mooring spaces occupied occupancy code,
And write this occupancy code in RFID tag；
Described antenna is used for, and the power according to the first exciting current sends the occupancy code in described RFID tag.
4. the device of detection vehicles two mooring spaces occupancy according to claim 3, wherein, described exciting current
Generation unit is arranged at the bottom of two mooring spaces, and described magnetisable material is Permanentmagnet bar, and described exciting current generation unit also includes
It is arranged on coil near described Permanentmagnet bar, fixed pulley and non-magnetic gravity block, the weight of wherein said non-magnetic gravity block is less than
The weight of described Permanentmagnet bar, Permanentmagnet bar and described non-magnetic gravity block are located at the both sides of fixed pulley respectively.
5. the device of detection vehicles two mooring spaces occupancy according to claim 3, wherein, described integrated circuit
For, the direction according to the second exciting current determines the release code that this two mooring spaces of sign are released, and in RFID tag
Middle this release code of write；
Described antenna is used for, and the power according to the second exciting current sends the release code in described RFID tag.
6. the device of detection vehicles two mooring spaces occupancy according to claim 5, wherein, described integrated circuit
Including comparator, diode group, RFID tag and micro-control unit.
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| CN104314336B (en) * | 2014-10-24 | 2016-04-13 | 四川科莱立泊停车设备有限公司 | The vacant detection method in a kind of machinery garage parking stall |
| DE102014221746A1 (en) * | 2014-10-27 | 2016-04-28 | Robert Bosch Gmbh | Method and system for driving a vehicle to a free parking space in a parking lot |
| WO2018195697A1 (en) * | 2017-04-24 | 2018-11-01 | 曾庆义 | Vehicle parking and pick-up management method and device |
| CN108766018A (en) * | 2018-05-15 | 2018-11-06 | 浙江志诚软件有限公司 | A kind of berth condition checkout gear judges system and method |
| CN113299113B (en) * | 2021-05-25 | 2023-04-14 | 湖南汽车工程职业学院 | Parking guidance system based on block chain technology |
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| EP1647959A1 (en) * | 2004-10-16 | 2006-04-19 | SkiData AG | Vehicle detection system |
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| CN202434068U (en) * | 2012-01-13 | 2012-09-12 | 浙江商业技师学院 | Vehicle management system based on wireless sensor network |
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| EP1647959A1 (en) * | 2004-10-16 | 2006-04-19 | SkiData AG | Vehicle detection system |
| CN102324188A (en) * | 2011-07-15 | 2012-01-18 | 广州市捷众科贸有限公司 | Buried parking space detector |
| CN102522000A (en) * | 2011-12-16 | 2012-06-27 | 广东朗视光电技术有限公司 | Magnetostatic field fluxgate parking space detection system |
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