CN106787051A - Earth magnetism vehicle checker wireless charging system and method - Google Patents
Earth magnetism vehicle checker wireless charging system and method Download PDFInfo
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- CN106787051A CN106787051A CN201710196601.8A CN201710196601A CN106787051A CN 106787051 A CN106787051 A CN 106787051A CN 201710196601 A CN201710196601 A CN 201710196601A CN 106787051 A CN106787051 A CN 106787051A
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Abstract
The present invention relates to intelligent transportation field, specifically related to a kind of earth magnetism vehicle checker wireless charging system and method, the earth magnetism vehicle checker wireless charging system includes 220V normal voltages interface, battery charger, battery, push-pull type E class A amplifier As, transmitting resonant body and earth magnetism vehicle checker power supply, and the earth magnetism vehicle checker power supply includes receiving resonant body, rectifier bridge and vehicle checker supplying cell.Battery is sent to push-pull type E class A amplifier As direct current energy when the vehicle checker supplying cell needs and charges, direct current energy is converted into being sent after AC energy to transmitting resonant body by push-pull type E class A amplifier As, transmitting resonant body by AC energy be converted to electromagnetic energy be then forwarded to receive resonant body, receive resonant body by the electromagnetic energy of reception be converted to AC energy send be converted to direct current energy to rectifier bridge after the vehicle checker supplying cell is charged.Wireless charging to earth magnetism vehicle checker battery is realized by the present invention, workload is considerably reduced.
Description
Technical field
The present invention relates to technical field of intelligent traffic, in particular to a kind of earth magnetism vehicle checker wireless charging system and
Method.
Background technology
The technology for traffic information collection mainly has ground induction coil, microwave, video, earth magnetism etc. in the market, respectively has
Advantage, wherein earth magnetism vehicle checker are increasingly taken seriously and are widely applied.But the earth magnetism vehicle checker for using at present exists
Need construction that equipment is taken out integral replacing from underground or battery is changed after running down of battery, operation element is too bothered,
And also normal traffic can be affected, the particularly very big crossing of vehicle amount.In existing utility model patent
In have been proposed a kind of vehicle checker (CN205211169U) with wireless charging function, but the specific reality without wireless charging
Existing method, the live part present invention is generally directed to vehicle checker provides a kind of specific easily wireless charging system.
The content of the invention
It is an object of the invention to provide a kind of earth magnetism vehicle checker wireless charging system, to realize by the side of wireless connection
Formula charges to earth magnetism vehicle checker, from without the normal traffic of breakage in installation road surface effect again, is brought to real work
Great convenience saves substantial amounts of manpower and materials simultaneously.
Another object of the present invention is to provide a kind of earth magnetism vehicle checker wireless charging method, to realize passing through wireless connection
Mode earth magnetism vehicle checker is charged, from without the normal traffic of breakage in installation road surface effect again, give real work band
Great convenience is carried out while saving substantial amounts of manpower and materials.
To achieve these goals, the technical scheme that the embodiment of the present invention is used is as follows：
In a first aspect, a kind of earth magnetism vehicle checker wireless charging system is the embodiment of the invention provides, for earth magnetism car test
Device carries out wireless charging, and the earth magnetism vehicle checker wireless charging system includes 220V normal voltages interface, battery charger, storage
Battery, push-pull type E class A amplifier As, transmitting resonant body and the earth magnetism vehicle checker power supply, the earth magnetism vehicle checker power supply include connecing
Receive resonant body, rectifier bridge and vehicle checker supplying cell, the 220V normal voltages interface, battery charger, battery, recommend
Formula E class A amplifier As, transmitting resonant body be sequentially connected, it is described transmitting resonant body and it is described reception resonant body wireless connection, it is described to connect
Resonant body, rectifier bridge, vehicle checker supplying cell is received to be sequentially connected；
The 220V normal voltages interface and battery charger are used to charge a battery；
The battery be used for the vehicle checker supplying cell need charge when by the direct current energy transmit to
The push-pull type E class A amplifier As；
The direct current energy that the push-pull type E class A amplifier As are used to receive is converted into AC energy, and will be described
AC energy is transmitted to the transmitting resonant body；
It is described transmitting resonant body be used for by the AC energy be converted to electromagnetic energy then be wirelessly transmitted to it is described receive it is humorous
Vibration body；
The resonant body that receives is then transmit to the rectification for the electromagnetic energy for receiving to be converted into AC energy
Bridge；
The rectifier bridge is used to for the AC energy to be converted into direct current energy, and the direct current energy is transmitted to described
Vehicle checker supplying cell, charges for the vehicle checker supplying cell.
Second aspect, the embodiment of the present invention additionally provides a kind of earth magnetism vehicle checker wireless charging method, is applied to earth magnetism car
Inspection device wireless charging system, the earth magnetism vehicle checker wireless charging system include 220V normal voltages interface, battery charger,
Battery, push-pull type E class A amplifier As, transmitting resonant body and the earth magnetism vehicle checker power supply, the earth magnetism vehicle checker power supply include
Receive resonant body, rectifier bridge and vehicle checker supplying cell, the 220V normal voltages interface, battery charger, battery, push away
Pull E class A amplifier As, transmitting resonant body be sequentially connected, it is described transmitting resonant body and it is described reception resonant body wireless connection, it is described
Resonant body, rectifier bridge, vehicle checker supplying cell is received to be sequentially connected；The earth magnetism vehicle checker wireless charging method includes：
The 220V normal voltages interface and battery charger are used to charge a battery；
The battery is transmitted to described the direct current energy when vehicle checker supplying cell needs to charge
Push-pull type E class A amplifier As；
The direct current energy that the push-pull type E class A amplifier As will be received is converted into AC energy, and by the exchange
Electric energy is transmitted to the transmitting resonant body；
The AC energy is converted to electromagnetic energy and then is wirelessly transmitted to the reception resonant body by the transmitting resonant body；
The resonant body that receives is then transmit to the rectification for the electromagnetic energy for receiving to be converted into AC energy
Bridge；
The AC energy is converted into direct current energy by the rectifier bridge, and the direct current energy is transmitted to the car test
Device supplying cell, charges for the vehicle checker supplying cell.
A kind of earth magnetism vehicle checker wireless charging system provided in an embodiment of the present invention and method, the earth magnetism vehicle checker is wireless
Charging system include 220V normal voltages interface, battery charger, battery, push-pull type E class A amplifier As, transmitting resonant body and
Earth magnetism vehicle checker power supply, the earth magnetism vehicle checker power supply includes receiving resonant body, rectifier bridge and vehicle checker supplying cell.220V is marked
Quasi- voltage interface and battery charger are used to charge a battery, and battery needs what is charged in the vehicle checker supplying cell
When direct current energy is sent to push-pull type E class A amplifier As, after direct current energy is converted into AC energy by push-pull type E class A amplifier As
Send to transmitting resonant body, transmitting resonant body is wirelessly transmitted to reception resonant body, receives after AC energy is converted into electromagnetic energy
Resonant body is sent to rectifier bridge after the electromagnetic energy of reception is converted into AC energy, and AC energy is converted into direct current by rectifier bridge
The vehicle checker supplying cell can be charged.By launching resonant body in earth magnetism vehicle checker wireless charging system and receiving humorous
Electromagnetic energy is wirelessly transferred between vibration body, the wireless charging of the battery to earth magnetism vehicle checker is realized, and then avoids destruction road surface
Earth magnetism vehicle checker is taken out from underground, workload is dramatically saves on.
To enable the above objects, features and advantages of the present invention to become apparent, preferred embodiment cited below particularly, and coordinate
Appended accompanying drawing, is described in detail below.
Brief description of the drawings
Technical scheme in order to illustrate more clearly the embodiments of the present invention, below will be attached to what is used needed for embodiment
Figure is briefly described, it will be appreciated that the following drawings illustrate only certain embodiments of the present invention, thus be not construed as it is right
The restriction of scope, for those of ordinary skill in the art, on the premise of not paying creative work, can also be according to this
A little accompanying drawings obtain other related accompanying drawings.
Fig. 1 shows the structural representation of earth magnetism vehicle checker wireless charging system provided in an embodiment of the present invention.
Fig. 2 shows the circuit theory diagrams of the push-pull type E class A amplifier As that present example is provided.
Fig. 3 shows the circuit theory diagrams of rectifier bridge provided in an embodiment of the present invention, DC-DC converter.
Fig. 4 shows the flow chart of earth magnetism vehicle checker wireless charging method provided in an embodiment of the present invention.
Diagram：10- earth magnetism vehicle checker wireless charging systems；110-220V normal voltage interfaces；120- battery chargers；
130- batteries；140- push-pull type E class A amplifier As；150- directional couplers；160- launches resonant body；170- earth magnetism vehicle checker electricity
Source；171- receives resonant body；172- rectifier bridges；173-DC-DC converters；174- vehicle checker supplying cells；175- Charge Managements
Module.
Specific embodiment
Below in conjunction with accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Ground description, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.Generally exist
The component of the embodiment of the present invention described and illustrated in accompanying drawing can be arranged and designed with a variety of configurations herein.Cause
This, the detailed description of the embodiments of the invention to providing in the accompanying drawings is not intended to limit claimed invention below
Scope, but it is merely representative of selected embodiment of the invention.Based on embodiments of the invention, those skilled in the art are not doing
The every other embodiment obtained on the premise of going out creative work, belongs to the scope of protection of the invention.
It should be noted that：Similar label and letter represents similar terms in following accompanying drawing, therefore, once a certain Xiang Yi
It is defined in individual accompanying drawing, then it need not be further defined and explained in subsequent accompanying drawing.Meanwhile, of the invention
In description, term " first ", " second " etc. are only used for distinguishing description, and it is not intended that indicating or implying relative importance.
Fig. 1 is refer to, is the structural representation of earth magnetism vehicle checker wireless charging system 10 provided in an embodiment of the present invention.Ground
Magnetic vehicle checker is often layed in underground, and the information for detecting passing cars, detection efficiency is high, and the application in urban transportation is more next
More popularize.But due to when the electricity of vehicle checker supplying cell 174 exhausts, it is necessary to artificially from underground take out earth magnetism car test
Device, and then vehicle checker supplying cell 174 is changed to earth magnetism vehicle checker power supply 170, this changes vehicle checker supplying cell 174 needs to break
Bad road surface, or even influence the road vehicle to pass through, it is very inconvenient.In the earth magnetism vehicle checker wireless charging that the present embodiment is provided
Electric system 10 can be realized carrying out wireless charging to earth magnetism vehicle checker power supply 170, will not again road pavement damage influence traffic enter
And it is very easy to the smooth development of work.
The earth magnetism vehicle checker wireless charging system 10 includes 220V normal voltages interface 110, battery charger 120, stores
Battery 130, push-pull type E class A amplifier As 140, transmitting resonant body 160 and earth magnetism vehicle checker power supply 170.220V normal voltage interfaces
110th, battery charger 120, battery 130, push-pull type E class A amplifier As 140, transmitting resonant body 160 and earth magnetism vehicle checker
Power supply 170 is sequentially connected, and earth magnetism vehicle checker power supply 170 includes receiving resonant body 171, rectifier bridge 172 and vehicle checker supplying cell
174, receive resonant body 171, rectifier bridge 172 and vehicle checker supplying cell 174 and be sequentially connected.
220V normal voltages interface 110 and battery charger 120 are used to be charged to battery 130.
When the brownout of vehicle checker supplying cell 174 of earth magnetism vehicle checker 170, that is, need to vehicle checker supplying cell 174
When being charged, battery 130 transmits to push-pull type E class A amplifier As 140 direct current energy that itself is stored.
Push-pull type E class A amplifier As 140 are used for the direct current energy that will receive to be changed to AC energy, and by the friendship after conversion
Stream electric energy is transmitted to transmitting resonant body 160.Push-pull type E class A amplifier As 140 are meeting ZVS (zero-voltage
Switching, ZVT) condition when, efficiency of transmission is limited in practical application up to 100% by circuit parameter
Often decrease.The ZVS refers to that the voltage of colelctor electrode or drain electrode is equal to when switch is changed into conducting state from off state
Zero.Meanwhile, in the case where identical DC voltage is input into, the power output of push-pull type E class A amplifier As 140 is the defeated of common E class A amplifier As
Go out 4 times of power or so (can be different with the change of actual parameter), it is readily appreciated that, when the timing of power output one, push-pull type E
Class A amplifier A 140 need input DC voltage will than single E class A amplifier As need input DC voltage it is lower, and then with recommend
The voltage stress that the component of the connection of formula E class A amplifier As 140 is born also correspondingly is reduced, and is greatly reduced to device parameters
It is required that, therefore it is in hgher efficiency that direct current energy is converted into AC energy using push-pull type E class A amplifier As 140, component is born more
It is small.
Transmitting resonant body 160 is used to be wirelessly transmitted to reception resonant body after the AC energy of reception is converted into electromagnetic energy
171, transmitting resonant body 160 is wirelessly transferred electromagnetic energy with resonant body 171 is received by resonant mode magnetic coupling.Simultaneously because earth magnetism car
Inspection device is arranged at underground, installs and take out general small volume for convenience, therefore it is required that the volume for receiving resonant body 171 can not mistake
Greatly.In the present embodiment, receiving resonant body 171 includes planar spiral inductor (not shown) and electric capacity (not shown),
Planar spiral inductor is arranged in parallel in reception resonant body 171 with electric capacity.Planar spiral inductor internal diameter is 57mm, i.e. snail
The radius of inductance inside smallest circle is 57mm, and planar spiral inductor external diameter is 126mm, the i.e. radius of planar spiral inductor greatest circle
It is 126mm.Transmitting resonant body 160 also includes the planar spiral inductor in planar spiral inductor and electric capacity, and transmitting resonant body 160
It is consistent with the planar spiral inductor and electric capacity received in resonant body 171 with the parameter of electric capacity so that transmitting resonant body 160 can be more preferably
Electromagnetic energy is wirelessly transmitted to reception resonant body 171 by ground.
After receiving the reception electromagnetic energy of resonant body 171, the electromagnetic energy of reception is converted into AC energy and is transmitted to rectifier bridge
172.Rectifier bridge 172 is used to for AC energy to be converted to direct current energy, and direct current energy is transmitted to vehicle checker supplying cell 174
Vehicle checker supplying cell 174 is charged.
The earth magnetism vehicle checker wireless charging system 10 also includes directional coupler 150, and the earth magnetism vehicle checker power supply 170 is also wrapped
Include DC-DC converter 173 and charge management module 175.Directional coupler 150 respectively with push-pull type E class A amplifier As 140 and transmitting
Resonant body 160 is connected.DC-DC exchangers 173 are connected with rectifier bridge 172 and vehicle checker supplying cell 174 respectively, Charge Management mould
Block 175 respectively with DC-DC converter 173 and vehicle checker supplying cell 174.
The voltage conversion that DC-DC converter 173 is used for the direct current energy for exporting rectifier bridge 172 is vehicle checker supplying cell
For vehicle checker supplying cell 174 is charged after preset voltage value, the vehicle checker supplying cell preset voltage value is according to vehicle checker
The rated voltage of supplying cell 174 is set, i.e., when the rated voltage of vehicle checker supplying cell 174 is 24V, vehicle checker is powered electricity
Pond preset voltage value is set to 24V, so the voltage conversion of direct current energy that exports rectifier bridge 172 of DC-DC converter 173 into
Vehicle checker supplying cell 174 is charged after 24V voltages, and then efficiently avoid the direct current energy of the output of rectifier bridge 172
Voltage it is excessive directly when being charged to vehicle checker supplying cell 174, be easily caused vehicle checker supplying cell 174 and damage.
The input of directional coupler 150 is connected with push-pull type E class A amplifier As 140, and straight-through end connects with transmitting resonant body 160
Connect, the isolation terminal voltage value of directional coupler 150 is exactly reflectance factor, the smaller transmitting of reflectance factor with the ratio between terminal voltage value is coupled
Resonant body 160 and the efficiency of transmission received between resonant body 171 are bigger.Staff constantly adjusts hair according to the efficiency of transmission
Relative position between penetrating resonant body 160 and receiving resonant body 171, so that transmitting resonant body 160 and reception resonant body 171
Between efficiency of transmission it is higher.
Charge management module 175 is used for the electricity of real-time monitoring vehicle checker supplying cell 174, when vehicle checker supplying cell
When 174 electricity is less than predetermined threshold value, the wireless communication module that charge management module 175 is carried using vehicle checker is to transport information
Administrative center sends prompt message, and the predetermined threshold value is stored in charge management module 175.Such as the predetermined threshold value is 5V, works as electricity
During the undertension 5V in pond, the wireless communication module that charge management module 175 is carried using vehicle checker is in traffic information management
The heart sends prompt message, and the prompt message may be, but not limited to, the text prompt such as not enough power supply of vehicle checker supplying cell 174.
Staff charges to vehicle checker supplying cell 174 in time according to prompt message, normal so that earth magnetism vehicle checker is effectively ensured
Operation.
As shown in Fig. 2 being the circuit theory of battery provided in an embodiment of the present invention 130 and push-pull type E class A amplifier As 140
Figure.
Battery 130 to the DC power output of push-pull type E class A amplifier As 140, i.e. battery 130 by choke induction L with
The drain electrode connection of switching device M, electric capacity Cp is in parallel with switching device M, tank circuit inductance Ls, tank capacitance Cs and directional coupler
150 are connected between two drain electrodes of switching device M.
As shown in figure 3, being rectifier bridge provided in an embodiment of the present invention 172, the circuit theory diagrams of DC-DC converter 173.
Port connection receives the output AC voltage of resonant body 171, and alternating voltage after the conversion of rectifier bridge 172 by exporting direct current
Voltage, direct voltage output to the primary side of DC-DC converter 173 constitutes RCD leakage inductance absorbing circuits using R1, C2 and D1, when
When switching tube is opened, the storage energy of DC-DC converter 173, the electricity for loading (R3 and battery 174) is provided by electric capacity C3 electric discharges.
When switching tube disconnects, the secondary side of DC-DC converter 173 releases energy, its output connection diode D2, is exported by electric capacity C3
Vehicle checker supplying cell 174 is charged to battery 174.
As shown in figure 4, being the flow chart of the wireless charging method of earth magnetism vehicle checker 170 provided in an embodiment of the present invention.The ground
Magnetic vehicle checker wireless charging method is applied to earth magnetism vehicle checker wireless charging system 10, earth magnetism vehicle checker wireless charging method profit
Wireless charging is carried out to vehicle checker supplying cell 174 with 220V normal voltages, the method includes：
Step S110, the battery passes the direct current energy when vehicle checker supplying cell needs to charge
Transport to the push-pull type E class A amplifier As.
Step S120, the direct current energy that the push-pull type E class A amplifier As will be received is converted into AC energy, and will
The AC energy is transmitted to the transmitting resonant body.
Step S130, the reflectance factor of the directional coupler detection transmitting resonant body is obtained according to reflectance factor
Efficiency of transmission, the efficiency of transmission is the efficiency that the transmitting resonant body transmits AC energy to the reception resonant body.
The AC energy is converted to electromagnetic energy and then is wirelessly transmitted to described connecing by step S140, the transmitting resonant body
Receive resonant body.
The electromagnetic energy for receiving is converted to AC energy and transmitted to the rectification by step S150, the reception resonant body
Bridge.
The AC energy is converted into direct current energy by step S160, the rectifier bridge, and the direct current energy is transmitted
To the vehicle checker supplying cell, charged for the vehicle checker supplying cell.
Step S170, the electricity of vehicle checker supplying cell described in the charge management module real-time monitoring, when the car test
When the electricity of device supplying cell is less than predetermined threshold value, the wireless communication module that the charge management module is carried using vehicle checker to
Traffic information management center sends prompt message and the magnitude of voltage according to vehicle checker supplying cell in whole charging process passes through
Charge management module adjusts the output of the DC-DC converter.
In sum, a kind of earth magnetism vehicle checker wireless charging system and method are the embodiment of the invention provides, the earth magnetism car
Inspection device wireless charging method is applied to the earth magnetism vehicle checker wireless charging system, and the earth magnetism vehicle checker wireless charging system includes
220V normal voltages interface, battery charger, battery, push-pull type E class A amplifier As, directional coupler, transmitting resonant body and
Earth magnetism vehicle checker power supply, the earth magnetism vehicle checker power supply includes receiving resonant body, rectifier bridge, DC-DC converter, vehicle checker and powers electricity
Pond and charge management module.220V normal voltages interface and battery charger are used to charge a battery；Battery is in battery
When needing to charge, direct current energy is transmitted to push-pull type E class A amplifier As, push-pull type E class A amplifier As change the direct current energy
Into AC energy and send to directional coupler, directional coupler sends AC energy to transmitting resonant body.Transmitting resonant body
Reception resonant body is wirelessly transmitted to after the AC energy is converted into electromagnetic energy.
The reception resonant body is transmitted to rectifier bridge after the electromagnetic energy of reception is converted into AC energy, and rectifier bridge exchanges this
Electric energy is converted into direct current energy, and the direct current energy is sent to DC-DC converter, and DC-DC converter is by the direct current energy
Magnitude of voltage adjusts to the magnitude of voltage of suitable vehicle checker supplying cell and vehicle checker supplying cell is charged.Charge management module
For the electricity of real-time monitoring vehicle checker supplying cell, when the not enough power supply of vehicle checker supplying cell is detected, utilize in time
The wireless communication module that vehicle checker is carried sends information, to point out staff in time for vehicle checker supplying cell is charged.
Realized by the present invention carries out wireless charging to earth magnetism vehicle checker, enters without by earth magnetism vehicle checker, from underground, taking-up is filled
Electricity, greatly reduces the workload of staff.
It should be noted that herein, such as first and second or the like relational terms are used merely to a reality
Body or operation make a distinction with another entity or operation, and not necessarily require or imply these entities or deposited between operating
In any this actual relation or order.And, term " including ", "comprising" or its any other variant be intended to
Nonexcludability is included, so that process, method, article or equipment including a series of key elements not only will including those
Element, but also other key elements including being not expressly set out, or also include being this process, method, article or equipment
Intrinsic key element.In the absence of more restrictions, the key element limited by sentence "including a ...", it is not excluded that
Also there is other identical element in process, method, article or equipment including the key element.
The preferred embodiments of the present invention are the foregoing is only, is not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.It is all within the spirit and principles in the present invention, made any repair
Change, equivalent, improvement etc., should be included within the scope of the present invention.It should be noted that：Similar label and letter exists
Similar terms is represented in following accompanying drawing, therefore, once being defined in a certain Xiang Yi accompanying drawing, then it is not required in subsequent accompanying drawing
It is further defined and is explained.
Claims (10)
1. a kind of earth magnetism vehicle checker wireless charging system, for carrying out wireless charging to earth magnetism vehicle checker, it is characterised in that described
Earth magnetism vehicle checker wireless charging system includes that 220V normal voltages interface, battery charger, battery, push-pull type E classes are amplified
Device, transmitting resonant body and earth magnetism vehicle checker power supply, the earth magnetism vehicle checker power supply include receiving resonant body, rectifier bridge and vehicle checker
Supplying cell, the 220V normal voltages interface, battery charger, battery, push-pull type E class A amplifier As, transmitting resonant body
It is sequentially connected, it is described to launch resonant body and the reception resonant body wireless connection, the reception resonant body, rectifier bridge, vehicle checker
Supplying cell is sequentially connected；
The 220V normal voltages interface and battery charger are used to charge a battery；
The battery is used to transmit to described direct current energy when the vehicle checker supplying cell needs and charges recommends
Formula E class A amplifier As；
The push-pull type E class A amplifier As are used for the direct current energy that will receive and are converted into AC energy, and by the exchange
Electric energy is transmitted to the transmitting resonant body；
The transmitting resonant body is used to for the AC energy to be converted to electromagnetic energy and then is wirelessly transmitted to the reception resonant body；
The resonant body that receives is transmitted to the rectifier bridge for the electromagnetic energy for receiving to be converted into AC energy；
The rectifier bridge is used to for the AC energy to be converted into direct current energy, and the direct current energy is transmitted to the car test
Device supplying cell, charges for the vehicle checker supplying cell.
2. earth magnetism vehicle checker wireless charging system as claimed in claim 1, it is characterised in that the earth magnetism vehicle checker power supply is also
Including DC-DC converter, the DC-DC converter is all connected with the rectifier bridge and the vehicle checker supplying cell, the DC-
The magnitude of voltage that DC converters are used for the direct current energy for exporting the rectifier bridge is converted to the default electricity of the vehicle checker supplying cell
Pressure value is charged for the vehicle checker supplying cell.
3. earth magnetism vehicle checker wireless charging system as claimed in claim 1, it is characterised in that the earth magnetism vehicle checker wireless charging
Electric system also includes directional coupler, and the directional coupler is equal with the push-pull type E class A amplifier As and the transmitting resonant body
Connection, the input of the directional coupler is connected with the push-pull type E class A amplifier As, leads directly to end and connects with the transmitting resonant body
Connect, the isolation terminal voltage value of the directional coupler is exactly reflectance factor, the smaller institute of reflectance factor with the ratio between terminal voltage value is coupled
The efficiency of transmission stated between transmitting resonant body and the reception resonant body is bigger, and reflectance factor according to directional coupler is adjusted
Relative position between the whole transmitting resonant body and the reception resonant body.
4. earth magnetism vehicle checker wireless charging system as claimed in claim 1, it is characterised in that the earth magnetism vehicle checker power supply is also
Including charge management module and DC-DC converter, the charge management module connects with DC-DC converter, vehicle checker supplying cell
Connect, the charge management module is used for the electricity of vehicle checker supplying cell described in real-time monitoring, when the vehicle checker supplying cell
Electricity when being less than predetermined threshold value, the wireless communication module that the charge management module is carried using vehicle checker is to transport information pipe
Reason center sends prompt message and the magnitude of voltage in whole charging process according to the vehicle checker supplying cell passes through charging valve
Reason module adjusts the output of the DC-DC converter.
5. earth magnetism vehicle checker wireless charging system as claimed in claim 1, it is characterised in that the reception resonant body includes flat
Surface helix inductance and electric capacity, the planar spiral inductor and electric capacity can form integrated level resonant body higher.
6. earth magnetism vehicle checker wireless charging system as claimed in claim 1, it is characterised in that the transmitting resonant body includes flat
Surface helix inductance and electric capacity, the parameter of planar spiral inductor and electric capacity in the transmitting resonant body are received in resonant body with described
Planar spiral inductor it is consistent with the parameter of electric capacity.
7. earth magnetism vehicle checker wireless charging system as claimed in claim 1, it is characterised in that the transmitting resonant body and described
Receiving resonant body has identical resonant frequency, and electromagnetic energy is base from the transmitting resonant body to the transmission of the reception resonant body
In magnetic coupling resonance principle.
8. a kind of earth magnetism vehicle checker wireless charging method, it is characterised in that be applied to earth magnetism vehicle checker wireless charging system, it is described
Earth magnetism vehicle checker wireless charging system includes battery, push-pull type E class A amplifier As, transmitting resonant body and earth magnetism vehicle checker electricity
Source, the earth magnetism vehicle checker power supply includes receiving resonant body, rectifier bridge and vehicle checker supplying cell, the battery, push-pull type E
Class A amplifier A, transmitting resonant body are sequentially connected, described to launch resonant body and the reception resonant body wireless connection, and the reception is humorous
Vibration body, rectifier bridge, vehicle checker supplying cell are sequentially connected；The earth magnetism vehicle checker wireless charging method includes：
The battery is transmitted to the push-pull type E classes direct current energy when vehicle checker supplying cell needs and charges
Amplifier；
The direct current energy that the push-pull type E class A amplifier As will be received is converted into AC energy, and by the AC energy
Transmit to the transmitting resonant body；
The AC energy is converted to electromagnetic energy and then is wirelessly transmitted to the reception resonant body by the transmitting resonant body；
The electromagnetic energy for receiving is converted to AC energy and is then transmit to the rectifier bridge by the reception resonant body；
The AC energy is converted into direct current energy by the rectifier bridge, and the direct current energy is transmitted to vehicle checker confession
Battery, charges for the vehicle checker supplying cell.
9. earth magnetism vehicle checker wireless charging method as claimed in claim 8, it is characterised in that the earth magnetism vehicle checker wireless charging
Electric system also includes directional coupler, and the direct current energy that will be received in the push-pull type E class A amplifier As is converted into exchange
Electric energy, and the AC energy is transmitted to the transmitting resonant body also including step：
The reflectance factor of the directional coupler detection transmitting resonant body, efficiency of transmission is obtained according to reflectance factor, described
Efficiency of transmission is the efficiency that the transmitting resonant body transmits AC energy to the reception resonant body.
10. earth magnetism vehicle checker wireless charging method as claimed in claim 8, it is characterised in that the earth magnetism vehicle checker power supply
Also include charge management module, the AC energy is converted into direct current energy in the rectifier bridge, and by the direct current energy
Transmitting to the vehicle checker supplying cell also includes step：
The electricity of vehicle checker supplying cell described in the charge management module real-time monitoring, when the electricity of the vehicle checker supplying cell
When amount is less than predetermined threshold value, the wireless communication module that the charge management module is carried using vehicle checker is in traffic information management
The heart sends prompt message and the magnitude of voltage in whole charging process according to vehicle checker supplying cell is adjusted by charge management module
The output of whole DC-DC converter.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107705581A (en) * | 2017-11-27 | 2018-02-16 | 无锡费舍太格科技有限公司 | A kind of buried vehicle checker of discrete wireless charging |
| CN113256999A (en) * | 2021-05-11 | 2021-08-13 | 电子科技大学 | Geomagnetic vehicle detection system and method based on radio frequency wireless charging |
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| CN205647044U (en) * | 2016-05-06 | 2016-10-12 | 桂林电子科技大学 | Magnetic coupling resonant mode wireless charging device with self -adaptive control ability |
| CN106374634A (en) * | 2016-09-27 | 2017-02-01 | 哈尔滨理工大学 | Novel electric vehicle wireless charging apparatus |
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| CN103825320A (en) * | 2013-12-06 | 2014-05-28 | 浙江大学 | Resonant mobile phone wireless charging system |
| CN205647044U (en) * | 2016-05-06 | 2016-10-12 | 桂林电子科技大学 | Magnetic coupling resonant mode wireless charging device with self -adaptive control ability |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107705581A (en) * | 2017-11-27 | 2018-02-16 | 无锡费舍太格科技有限公司 | A kind of buried vehicle checker of discrete wireless charging |
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Application publication date: 20170531 |