CN109823222A - Utilize radio location detection system control dynamic radio power supply segmented guide rail switching system and its method - Google Patents
Utilize radio location detection system control dynamic radio power supply segmented guide rail switching system and its method Download PDFInfo
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- CN109823222A CN109823222A CN201910271012.0A CN201910271012A CN109823222A CN 109823222 A CN109823222 A CN 109823222A CN 201910271012 A CN201910271012 A CN 201910271012A CN 109823222 A CN109823222 A CN 109823222A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/12—Electric charging stations
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/16—Information or communication technologies improving the operation of electric vehicles
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Abstract
The present invention is using radio location detection system control dynamic radio power supply segmented guide rail switching system and its method, and the system comprises radiofrequency emitting module, orientation onboard antenna, Receiver Module, dynamic radio electrical supply rail, relay system and main control units.When vehicle will drive into dynamic radio electrical supply rail, the Receiver Module positioned at guide rail front end captures the orientation 2.4GHz radiofrequency signal that radiofrequency emitting module issues in vehicle.Radiofrequency signal is passed to main control unit by serial port module, communicates vehicle with master control, obtains and upload the information such as vehicle ID, and issuing signal responds rapidly to relay system, this section of electrical supply rail is powered on.When vehicle is driven out to previous section guide rail and then when driving towards next section guide rail, when the receiving module of next section guide rail receives radiofrequency signal and is transferred to main control unit, master control can judge rapidly the electrical supply rail in front of preparatory unlocking vehicle and the guide rails of charging tasks is completed in closing.
Description
Technical field
The present invention relates to electric car dynamic radio electric energy power supply technique fields, are a kind of utilization radio location detection systems
Control dynamic radio power supply segmented guide rail switching system and its method.
Background technique
Electric car by dynamic radio charging technique travel specific laying electrical supply rail, in the process of moving not between
Disconnected charge, and provides a kind of important solution route to solve power battery bottleneck problem.In order to reduce coil loss
With magnetic field exposure level, layout structure of the dynamic radio electrical supply rail frequently with segmented.
Consider from energy problem, environmental problem and raising electric car ability to work and efficiency etc. is solved, it cannot
Charging guide rail is allowed still to be powered on when on road without vehicle, but by designing a kind of intelligent vehicle location detection mould
Block judges to complete the operation that whether is powered on to guide rail vehicle driving in the specific location of each section guide rail.
When vehicle will drive into charging guide rail, position detecting module can detect in time information of vehicles and be transferred to master control list rapidly
Member is put into charging work to control guide rail energization；When vehicle sails out of this section guide rail and will drive into next section of charging guide rail
When, preceding section guide rail powered down sleep and next section guide rail is powered on.
The position detection of vehicle can be accomplished in several ways, mainly had using more positioning method at present: electricity
Magnetic orientation mode, optical alignment mode, laser positioning mode, GPS positioning mode, NFC positioning method, RFID positioning method,
Feel coil positioning method etc..Electromagnetic location, optical alignment and laser positioning are all traditional localization method, electromagnetic location mode letter
It is single easy, but the disadvantage is that resolution is low, it is easy to cause unrecognized situation due to induced voltage deficiency；Optical alignment mode
Detection range is limited, and interferes vulnerable to external light source or shelter, higher to environment and construction requirement；Laser positioning mode orients
Accurately, good environmental adaptability, but need to calculate the motion state of vehicle in conjunction with a large amount of triangle geometric operations, therefore it is required that compared with
Fast digital signal processing circuit, overall structure is extremely complex and higher cost.
GPS positioning position and be monitored motion state to vehicle by satellite, which is also constantly sending out
It opens up and perfect, future is possibly used for unmanned technology.The accuracy of current GPS positioning mode is limited by satellite itself and measures essence
Degree, search of satellite number, target vehicle running environment etc. can't perform well in the precise motion positioning of instant road.NFC
Positioning method, RFID positioning method are the indoor positioning modes newly risen in recent years, are chiefly used in determining for the indoor scenes such as market
Bit function etc., but if applying can generate biggish in the positioning scene of outdoor move vehicle because recognition capability is insufficient
Error, so as to cause position inaccurate or generation malfunction etc..
Most widely used in vehicle location detection at this stage is the induction positioning method based on ground induction coil,
It is usually used in parking lot and enters and leaves the fields such as detection, vehicle flowrate and overspeed of vehicle detection.But exist when based on ground induction coil positioning method
When being applied to electric car dynamic radio power supply system position detection, since the applying frequency range of ground induction coil is about
The resonance frequency of 20kHz-170kHz and dynamic radio charging magnetic coupling is very close, if ground induction coil and electrical supply rail
The high-intensity magnetic field that can usually generate because of transmitting coil in electrical supply rail when transmitting coil hypotelorism is caused to detection precision
Severe jamming even is easy to burn out ground induction coil, causes biggish damage to position detecting system.
In conclusion common vehicle location detection mode meeting when being applied in electric car dynamic radio power supply system
Show many drawbacks resolution such as under high velocity environment is low, road pavement penetrability is poor, be easy by electrical supply rail high-intensity magnetic field
Interference etc..Therefore, in conjunction with this project to the total amount of data of electric car dynamic radio power supply system vehicle detection, traffic rate,
The factors such as response speed, design cost, propose a kind of directionality resolution be strong preferably, under high-speed moving state and identification away from
From it is controllable, to the stronger dynamic radio location detection method of electrical supply rail high-intensity magnetic field anti-interference ability, and carried out certain needle
To property design.
Summary of the invention
The present invention is existing to solve the problems, such as, provides a kind of utilization radio location detection system control dynamic radio
Segmented guide rail switching system of powering and its method, the present invention provides following technical schemes:
It is a kind of to utilize radio location detection system control dynamic radio power supply segmented guide rail switching system, the system packet
Include radiofrequency emitting module, orientation onboard antenna, Receiver Module, dynamic radio electrical supply rail, relay system and main control unit；
The radiofrequency emitting module exit connection orientation onboard antenna, radiofrequency emitting module are located at orientation onboard antenna
Electric car front end, Receiver Module are located at the front end of dynamic radio electrical supply rail, and Receiver Module and dynamic radio supply
Conductance rail is embedded in underground together, and installing orientation onboard antenna, the dynamic radio electrical supply rail are logical in the radiofrequency emitting module
Relay system is crossed to connect with main control unit, positioned at dynamic radio electrical supply rail front end Receiver Module directly and main control unit
Connection.
Preferably, the main control unit receives the radiofrequency signal that radiofrequency emitting module issues, and carries out to the radiofrequency signal
Analysis and judgement, control relay system quick response are completed to turn on and off the movement of dynamic radio electrical supply rail.
Preferably, radiofrequency emitting module and orientation onboard antenna are installed in the plastic bumper of electric car front end, described
It orients onboard antenna direction and is directed toward ground obliquely, avoided in the bumper equipped with large-area metal product.
Preferably, by adjusting the reception spirit of the transmission power of radio circuit in radiofrequency emitting module and Receiver Module
Sensitivity, by the control of radio frequency interaction distance between 0.5m to 1m.
It is a kind of to control dynamic radio power supply segmented guide rail switching method using radio location detection system, it is characterized in that:
The following steps are included:
Step 1: when vehicle will drive into dynamic radio electrical supply rail, positioned at penetrating for dynamic radio electrical supply rail front end
Frequency receiving module captures the orientation 2.4GHz radiofrequency signal of front of the car radiofrequency emitting module sending；
Step 2: the 2.4GHz radiofrequency signal is passed to main control unit by serial port module, main control unit connects according to radio frequency
The encoded signal that receives at the appointed time of module is received to determine whether effectively, when Receiver Module is in a respective cycle
When receiving preset encoded information, then incoming signal is effective communication signal, represents vehicle already close to predetermined region, allows
Vehicle is communicated with main control unit, and main control unit obtains and upload the information of vehicle ID and running speed, and main control unit issues
Signal makes relay quick response, opens the work of dynamic radio electrical supply rail；
Step 3: after vehicle is driven out to the last period dynamic radio electrical supply rail and then driving into next section of dynamic radio for conductance
When rail, the Receiver Module of next section of dynamic radio electrical supply rail receives the orientation that front of the car radiofrequency emitting module issues
2.4GHz radiofrequency signal；
Step 4: the 2.4GHz radiofrequency signal is passed to main control unit by serial port module, main control unit judgement is opened in advance
Lead to next section of dynamic radio electrical supply rail work, shutdown the last period dynamic radio electrical supply rail work.
The invention has the following advantages:
Main control unit of the invention can respond rapidly to so that guide rail works on power.In addition, being filled in radiofrequency emitting module
The radiofrequency signal that setting emits it to onboard antenna has preferable directionality ability, so as to avoid with this route simultaneously
The malfunction that the radiofrequency signal that capable vehicle issues generates the control of this line powering guide rail is interfered.
Since the resonance frequency point of 2.4GHz radio-frequency module is much higher than the resonance frequency of dynamic radio electrical supply rail transmitting coil,
Therefore both will not generate interference mutually, thus can to avoid in ground induction coil positioning method since resonance frequency is excessively close
And the electromagnetic interference phenomenon generated.The radio frequency band of 2.4GHz has good penetrability and still has in the scene of high-speed mobile
There is preferable recognition capability, therefore the Receiver Module for being embedded in underground can be captured accurately from the radio frequency in move vehicle
The radiofrequency signal that transmitting module issues.
Detailed description of the invention
Fig. 1 is control dynamic radio power supply segmented guide rail switching system schematic diagram.
Fig. 2 is the method flow diagram for controlling dynamic radio power supply segmented guide rail switching system.
Fig. 3 is vehicle and electrical supply rail relative position and control sequential figure.
Specific embodiment
Below in conjunction with specific embodiment, describe the invention in detail.
Specific embodiment one:
As shown in Figure 1, the application system of dynamic radio location detection method is mainly by radiofrequency emitting module, the onboard day of orientation
The composition such as line, Receiver Module, dynamic radio electrical supply rail, relay system, main control unit.Wherein radiofrequency emitting module,
Radio circuit designed by cc2500 chip of the Receiver Module by TI company forms, transmitting terminal radio frequency exit connection orientation
Onboard antenna.Transmitting terminal radio-frequency module and orientation onboard antenna be located at electric car front end and during electric automobile during traveling not
The disconnected 2.4GHz that issues orients radiofrequency signal.Receiver Module is located at each section of front end of dynamic radio electrical supply rail, when vehicle connects
When near nearly electrical supply rail, Receiver Module can capture the orientation radiofrequency signal of its sending and transmit the signal to master control
In unit processed.Main control unit plays cerebration in the entire system, plays the radio frequency received to Receiver Module
Signal carry out analysis and arbitration functions, and can control relay system quick response need complete open and shutdown act.
Since the resonance frequency point of 2.4GHz radio-frequency module is much higher than the resonance frequency of dynamic radio electrical supply rail transmitting coil,
Therefore both will not generate interference mutually, thus can to avoid in ground induction coil positioning method since resonance frequency is excessively close
And the electromagnetic interference phenomenon generated.The radio frequency band of 2.4GHz has good penetrability and still has in the scene of high-speed mobile
There is preferable recognition capability, therefore the Receiver Module for being embedded in underground can be captured accurately from the radio frequency in move vehicle
The radiofrequency signal that transmitting module issues.The adjustment of transmission power and receiving module receiving sensitivity to radiofrequency emitting module, can
The control of radio frequency interaction distance within the scope of certain (about 0.5m-1m), i.e., will be driven into dynamic radio power supply in vehicle
When guide rail, main control unit can respond rapidly to so that guide rail works on power.In addition, installing orientation is onboard in radiofrequency emitting module
Antenna, the radiofrequency signal for emitting it have preferable directionality ability, so as to avoid sending out with the parallel vehicle of this route
The malfunction that radiofrequency signal out generates the control of this line powering guide rail is interfered.
Specific embodiment two:
As shown in Figure 1, the electric car dynamic radio power supply system that the present invention is based on includes radiofrequency emitting module, orientation
Onboard antenna, Receiver Module, dynamic radio electrical supply rail, after electrical switching apparatus, main control unit etc. form.Wherein radio frequency
Transmitting module and orientation pcb board carry antenna and are installed on dynamic radio in the plastic bumper of electric automobile front end, and bumper
In not install as far as possible any large-area metal product prevented its to radiofrequency signal transmitting-receiving interference.Orient onboard antenna
Ground is directed toward in direction obliquely, by adjusting the transmission power of radio circuit in radiofrequency emitting module and connecing for Receiver Module
Sensitivity is received, by the control of radio frequency interaction distance between 0.5m-1m.
Receiver Module installing and dynamic radio electrical supply rail front end, and it is embedded in underground together with guide rail, this is just needed
Radio-frequency module has preferable penetrability for ground.Receiver Module is connected with main control unit, when the close power supply of vehicle
When near guide rail, Receiver Module can capture the orientation radiofrequency signal of its sending and transmit the signal to main control unit
In.Main control unit plays cerebration in the entire system, play radiofrequency signal that Receiver Module is received into
Row analysis and arbitration functions.
Master controller is made of 8 8-digit microcontroller C8051F330-GMR etc., is had decoding and arbitration functions, is judged function
The principle of energy is the continuity based on code identification.For example, radio-frequency transmissions end on electrical supply rail when advancing according to the automatic of 1ms
Sending cycle carries out continual 20 encoded signals output.Due to having carried out the control of transmission power in advance, so that receiving end
Can good progress encoded signal reception in the range of 0.5m-1m, can not then be received when radio frequency reception end is not in the range
To complete and continuous encoded signal.
Therefore, whether master controller receives continuous and complete 20 codings according to radio frequency reception end within a certain period of time
Signal carries out judging whether to guide rail switching.Believe when complete and continuous 20 codings whithin a period of time, can be received
Number when, i.e., judgement can carry out being powered on for guide rail；If the signal that can not be received signal or receive is imperfect, discontinuous,
All illustrate that radio frequency reception end has not been entered into predeterminable area, that is, judges that guide rail still keeps standby mode.
After master controller receives the encoded signal that Receiver Module receives, work can be decoded to it rapidly,
Identify its information of vehicles and calculate speed etc., control according to demand after electrical switching apparatus quick response come complete guide rail open and
Shutdown task.The radio location detection method that the present invention designs is applied in the position detection of dynamic radio power supply system, can be with
Solve existing serious shortcomings when traditional ground induction coil detection method is applied in dynamic radio power supply system.Work as ground induction coil
When with the transmitting coil hypotelorism of electrical supply rail, can because both working band it is excessively close both cause to interfere with each other,
Ground induction coil is easy to burn out since transmitting coil can generate high-power high-strength magnetic field, generally ground induction coil can all be filled
If the electromagnetic interference that very far it is generated with transmitting coil apart from electrical supply rail.But in the design process, it is desirable to detect
Distance is close as far as possible, and Receiver Module is located at the about 30cm of electrical supply rail front end when actual installation, and realization automobile is in difference
It can make when travel speed after electrical switching apparatus quick response.
Fig. 2 is the functional block diagram of dynamic radio location detection method, and Fig. 3 is vehicle and electrical supply rail relative position and control
Timing diagram.When vehicle will drive into above dynamic radio electrical supply rail, the Receiver Module positioned at guide rail front end is captured
The orientation 2.4GHz radiofrequency signal that radiofrequency emitting module issues in vehicle.Radiofrequency signal is passed to main control list by serial port module
Member communicates vehicle with master control, obtains and uploads the information such as vehicle ID, running speed, and issuing signal switches relay
Device responds rapidly to, this section of electrical supply rail is powered on.When vehicle is driven out to previous section guide rail and then drives towards above next section guide rail
When, when the receiving module of next section guide rail receives radiofrequency signal and is transferred to main control unit, master control can open rapidly in advance in judgement
The guide rail of charging tasks is completed in the electrical supply rail of vehicle front and closing.
Dynamic radio electrical supply rail, which is opened, can be divided into following three step with the control flow of shutdown:
The first step, when vehicle will drive into dynamic radio electrical supply rail, the Receiver Module positioned at guide rail front end is caught
Grasp the orientation 2.4GHz radiofrequency signal that radiofrequency emitting module issues in vehicle.
Second step, radiofrequency signal are passed to main control unit by serial port module, communicate vehicle with master control, obtain simultaneously
The information such as vehicle ID are uploaded, and issuing signal responds rapidly to relay system, this section of electrical supply rail is powered on.
Third step, when vehicle is driven out to previous section guide rail and then drives towards next section guide rail, the receiving module of next section guide rail
When receiving radiofrequency signal and being transferred to main control unit, master control can judge rapidly the electrical supply rail and closing in front of preparatory unlocking vehicle
The guide rail of charging tasks is completed.
It is described above be only using radio location detection system control dynamic radio power supply segmented guide rail switching system and
The preferred embodiment of its method, using radio location detection system control dynamic radio power supply segmented guide rail switching system and
The protection scope of its method is not limited merely to above-described embodiment, and all technical solutions belonged under the thinking belong to of the invention
Protection scope.It should be pointed out that for those skilled in the art, several improvement without departing from the principles of the present invention
And variation, such modifications and variations also should be regarded as protection scope of the present invention.
Claims (5)
1. it is a kind of using radio location detection system control dynamic radio power supply segmented guide rail switching system, it is characterized in that: institute
The system of stating include radiofrequency emitting module, orientation onboard antenna, Receiver Module, dynamic radio electrical supply rail, relay system and
Main control unit；
The radiofrequency emitting module exit connection orientation onboard antenna, transmitting terminal radiofrequency emitting module and orientation onboard antenna position
In electric car front end, Receiver Module is located at the front end of dynamic radio electrical supply rail, Receiver Module and dynamic radio
Electrical supply rail is embedded in underground together, installing orientation onboard antenna, the dynamic radio electrical supply rail in the radiofrequency emitting module
Connect by relay system with main control unit, positioned at dynamic radio electrical supply rail front end Receiver Module directly with master control list
Member connection.
2. a kind of utilization radio location detection system control dynamic radio power supply segmented guide rail according to claim 1 is cut
System is changed, it is characterized in that: the main control unit receives the radiofrequency signal that radiofrequency emitting module issues, the radiofrequency signal is carried out
Analysis and judgement, control relay system quick response are completed to turn on and off the movement of dynamic radio electrical supply rail.
3. a kind of utilization radio location detection system control dynamic radio power supply segmented guide rail according to claim 1 is cut
System is changed, it is characterized in that: radiofrequency emitting module and orientation onboard antenna are installed in the plastic bumper of electric car front end, it is described
It orients onboard antenna direction and is directed toward ground obliquely, avoided in the bumper equipped with large-area metal product.
4. a kind of utilization radio location detection system control dynamic radio power supply segmented guide rail according to claim 1 is cut
System is changed, it is characterized in that: by adjusting the transmission power of radio circuit in radiofrequency emitting module and the reception of Receiver Module
Sensitivity, by the control of radio frequency interaction distance between 0.5m to 1m.
5. a kind of switched using radio location detection system control dynamic radio power supply segmented guide rail as described in claim 1
Method, it is characterized in that: the following steps are included:
Step 1: the radio frequency positioned at dynamic radio electrical supply rail front end connects when vehicle will drive into dynamic radio electrical supply rail
Receive the orientation 2.4GHz radiofrequency signal that module captures the sending of front of the car radiofrequency emitting module；
Step 2: the 2.4GHz radiofrequency signal is passed to main control unit by serial port module, main control unit is according to radio frequency receiving
Encoded signal that block receives at the appointed time is to determine whether effectively, when Receiver Module receives in a respective cycle
When preset encoded information, then incoming signal is effective communication signal, represents vehicle already close to predetermined region, allows vehicle
It is communicated with main control unit, main control unit obtains and upload the information of vehicle ID and running speed, and main control unit issues signal
So that relay quick response, opens the work of dynamic radio electrical supply rail；
Step 3: after vehicle is driven out to the last period dynamic radio electrical supply rail and then driving into next section of dynamic radio electrical supply rail
When, the Receiver Module of next section of dynamic radio electrical supply rail receives the orientation that front of the car radiofrequency emitting module issues
2.4GHz radiofrequency signal；
Step 4: the 2.4GHz radiofrequency signal is passed to main control unit by serial port module, main control unit judgement is opened down in advance
One section of dynamic radio electrical supply rail work, shutdown the last period dynamic radio electrical supply rail work.
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| CN201910271012.0A CN109823222A (en) | 2019-04-04 | 2019-04-04 | Utilize radio location detection system control dynamic radio power supply segmented guide rail switching system and its method |
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| CN111610391A (en) * | 2020-05-09 | 2020-09-01 | 广东雷霆技术有限公司 | Power supply efficiency detection method applied to NFC wireless power supply technology |
| CN112829609A (en) * | 2020-12-31 | 2021-05-25 | 北京新能源汽车技术创新中心有限公司 | Wireless charging system of vehicle, vehicle and road |
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