CN105337382B - A kind of off-board intelligent DC charging pile - Google Patents
A kind of off-board intelligent DC charging pile Download PDFInfo
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- CN105337382B CN105337382B CN201510521956.0A CN201510521956A CN105337382B CN 105337382 B CN105337382 B CN 105337382B CN 201510521956 A CN201510521956 A CN 201510521956A CN 105337382 B CN105337382 B CN 105337382B
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- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
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- Y02T10/00—Road transport of goods or passengers
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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
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- Y02T90/16—Information or communication technologies improving the operation of electric vehicles
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Abstract
The present invention relates to a kind of new off-board intelligent DC charging pile; including Electric field 3D gesture inputs and LCD display interfaces, card reader, control section and AC/DC conversion sections; wherein; AC/DC conversion sections are the executing agencies for producing Gong Give electric automobile direct currents, are made up of BMS accessory power supplys, Intelligent voltage resonant switching power and its protection location；Card reader realizes the functions such as user identification confirmation and payment；Control section is by RISC main control units, model recognition system, BMS communication systems, GPS module, composite measurement module, cloud access unit is formed, model recognition system realize to will the vehicle of charging vehicle carry out visual identity confirmation and transfer to RISC main control units to carry out Treatment Analysis the information so that it is determined that power supply voltage level required for vehicle BMS and controlling the BMS accessory power supplys of AC/DC conversion sections to produce the dc source of the voltage class to carry out reliable power supply for the BMS of electric automobile, the image information that model recognition system obtains uploads afield high in the clouds by cloud access unit.
Description
Technical field
The invention belongs to Power Electronic Technique and Digital Signal Processing, it is related to cloud access function technology, specifically one
The off-board intelligent DC charging pile of kind.
Background technology
It is complete with the exhausted and environmentally friendly requirement of the traditional resources such as oil, world car industry entry all over the world
Face transportation and energy transition period, Development of EV turn into the technology for realizing transportation and energy transition for obtaining height common recognition in the world
Route.Electric automobile direct-current charging post obtains as the equipment that a kind of Vehicular battery for aiming at electric automobile carries out quick charge
It is fast-developing；At present, direct-current charging post using very and some charging piles can fill without car, cause the time and charge resource wave
Take.
The content of the invention
To solve the deficiencies in the prior art, it is an object of the invention to by the power distribution network under several special methods of operation
Failure is analyzed, so as to the method for troubleshooting being resolved under the special method of operation, and by differentiation failure at
Complementary technology is managed, is incorporated in distribution network failure processing function module, meets the need of distribution network failure disposal ability at this stage
Ask.
In order to realize above-mentioned target, the present invention adopts the following technical scheme that：
The positive effect of the present invention and advantage are：
A kind of off-board intelligent DC charging pile, including Electric field 3D gesture inputs and LCD show i.e. man-machine interface, Card Reader
Device, control section and AC/DC conversion sections, wherein, AC/DC conversion sections are the execution machines for producing supply electric automobile direct current
Structure, it is made up of BMS accessory power supplys, Intelligent voltage resonant switching power and its protection location, BMS accessory power supplys and intelligent electric
Pressure resonant switching power all carries out intelligent control by control section and produces suitable electric automobile BMS power reguirements and electronic vapour respectively
The D/C power of car power battery charging requirement；Card reader realizes the functions such as user identification confirmation and payment；Control section is real
The now core of the intelligent DC charging pile, by RISC main control units, model recognition system, BMS communication systems, GPS moulds
Block, composite measurement module, cloud access unit form, model recognition system realize to will charging vehicle vehicle carry out vision
The information is simultaneously transferred to RISC main control units to carry out Treatment Analysis so that it is determined that power supply required for vehicle BMS by recognition and verification
Voltage class simultaneously controls the BMS accessory power supplys of AC/DC conversion sections to produce the dc source of the voltage class as electric automobile
BMS carries out reliable power supply, and by the upload of cloud access unit, afield high in the clouds, BMS lead to the image information that model recognition system obtains
News system with the BMS of electric automobile can shake hands after the BMS of electric automobile obtains reliable power supply to be connected so as to which carry out can
The real-time communication leaned on, RISC main control units are analyzed to obtain the parameter of power supply needed for battery to its communication data, then right
The Intelligent voltage resonant switching power of AC/DC conversion sections, which is controlled, makes it export corresponding direct current.
Moreover, the cloud access unit is made up of three parts：Risc processor is the main control section of core, 2.4GHz
IEEE 802.11b/g modules, WIFI wireless routers, load inside main control section real-time embedded (SuSE) Linux OS and
MySQL relevant databases, embed ICP/IP protocol, http protocol, usb protocol stack, the master control that will be obtained by usb bus
Device data processed and video data carry out HTTP encapsulation and simultaneously carry out TLS/SSL encryption deposit MySQL databases, meet user based on
B/S visiting demand, and control 2.4GHz IEEE 802.11b/g modules to work by general purpose I/O port, by data by with
Too network interface, which is transmitted to 2.4GHz IEEE 802.11b/g modules, the module, meets the standards of IEEE 802.11, has low-power consumption
The 2.4GHz wireless communication modules of characteristic, contain all related RF elements --- crystal oscillator, the integrated MAC of band bypass and it is passive partially
Circuits, base band, RF and power amplifier, and AES and TKIP (WEP, WPA and WPA2 security) built in hardware is supported,
PCB helical antennas are internally integrated, module embeds ICP/IP protocol stack and supports the clothes such as ieee standard 802.11 and TCP/IP, HTTP
Business, easily realizes the wireless Web service based on B/S, and the 2.4GHz IEEE 802.11b/g modules enter master control part divided data
Row DSSS/OFDM, which modulates to be formed, works in ISM band 2.400 to 2.484GHz wireless signal, is transmitted by WIFI to WIFI
Wireless router, conversely, the wireless signal of WIFI wireless routers also is demodulated into system is sent to master by Ethernet interface
Control section；WIFI wireless routers are using the 2.4GHz frequency ranges for meeting the standards of IEEE 802.11, set up a wireless office
Domain net, and the essential information of WLAN is configured, WLAN is connect to 4G by people by the iptables of linux system
In network, the router is realized based on three modules, respectively 4G Network Service units, IEEE
802.11b/g controllers and GPS controllers, the function of 4G Network Service units are the wireless datas using operator
Card carries out PPP dialing so that router can be connected to internet, the work(of IEEE 802.11b/g controllers by carrier network
It can be so that wireless network card is operated in AP (Access Point) pattern, and configure the script file of DHCP,
To establish 2.4GHz WiFi WLANs, the router is loaded with built-in Linux operating system, and it is main real
The function of existing two aspects, on the one hand supports the drive of 4G Network Service units and IEEE 802.11b/g controllers
It is dynamic, on the other hand will be by the iptables packet filtering systems in embedded Linux system by WLAN and 4G nets
Network connects, the WLAN that 2.4GHz IEEE 802.11b/g modules are provided by WiFi channel access to the router
In, it is assigned to after an IP address, then carries out the reception and transmission of packet by the gateway of the WLAN, and the net
Guan Ze receives and sent packet to 4G networks by the network dial interface on 4G Network Service units, so that
Realize the data interaction of main control section and internet.
The positive effect of the present invention and advantage are：
New off-board direct-current charging post provided by the invention has cloud access function, and domestic consumer can be connected by any
Be connected to the equipment of internet can inquire the charging pile the ripe Buck-Boost Converter circuit topologies in position and
Technology so that circuit reliability improves, and efficiency is all more than 90% during whole work.But due to electric automobile vehicle not
The supply voltage grade needed with its BMS is different, and the power supply needs direct-current charging post to provide during charging, and this requires to fill
Electric stake carries out matching with electric automobile to be charged normal, and some troubles even accident occurs in actual use；To the greatest extent
Pipe direct current quick charge its charging interval of mode has greatly shortened the time it also requires 40 minutes or so, if necessary to charge
Vehicle and direct-current charging post do not obtain rational distribution and arrange, can cause part charging pile car full to suffer from, the letter such as state
Breath, easily service and strong support are provided for user's charging；
New off-board direct-current charging post provided by the invention uses 3D gesture operations interface, and user does not contact charging pile i.e.
All man-machine interactive operations can be completed, have powerful environmental suitability and security also relatively reliable.
New off-board direct-current charging post provided by the invention has vehicle vehicle cab recognition function, automatic identification charging vehicle
Vehicle, according to vehicle adjust automatically BMS need supply voltage, without user intervention, reliability greatly improves, and fully achieves
Charging pile work it is unattended.
New off-board direct-current charging post provided by the invention can meet the different demands of all vehicles, be a intelligent
New off-board direct-current charging post.
Brief description of the drawings
Fig. 1 is the system framework figure of the present invention；
Fig. 2 is the systematic schematic diagram of the present invention；
Fig. 3 is the cloud access theory diagram in the present invention；
Fig. 4 is the 3D gesture man-machine interface theory diagrams in the present invention；
The theory diagram that it is smart power conversion module in the present invention that Fig. 5 (a), which is,；
The theory diagram that it is intelligent wide output voltage range Switching Power Supply in the present invention that Fig. 5 (b), which is,；
Fig. 6 is the vehicle cab recognition theory diagram of the present invention.
Embodiment
Make specific introduce to the present invention below in conjunction with the drawings and specific embodiments.
A kind of off-board intelligent DC charging pile, see that Fig. 1, Fig. 2, including Electric field 3D gesture inputs and LCD show i.e. people
Machine interface, card reader, control section and AC/DC conversion sections, wherein, AC/DC conversion sections are that generation supply electric automobile is straight
The executing agency of electricity is flowed, is made up of BMS accessory power supplys, Intelligent voltage resonant switching power and its protection location, BMS auxiliary
Power supply and Intelligent voltage resonant switching power all carry out intelligent control by control section and produce suitable electric automobile BMS respectively
Power reguirements and electric automobile power battery charging requirement D/C power, protection location realize Switching Power Supply overvoltage, excessively stream with
And lightning strike protection；Electric field 3D gesture inputs and LCD show the human-computer interaction interface of this innovation formula, are contacted without user
All man-machine interface operations of whole charging process are completed, environment is influenceed to be preferably minimized, need not be taken off in arctic weather user
Gloves also can easily realize input function, also be greatly improved due to that need not contact its security；Card reader realizes that user identity is true
Recognize and the function such as pay；Control section is the core for realizing the intelligent DC charging pile, by RISC main control units, car
Type identifying system, BMS communication systems, GPS module, composite measurement module, cloud access unit are formed, and model recognition system realizes
To will charging vehicle vehicle carry out visual identity confirmation and by the information transfer to RISC main control units carry out Treatment Analysis
So that it is determined that power supply voltage level required for vehicle BMS and controlling the BMS accessory power supplys of AC/DC conversion sections to produce the electricity
The dc source of grade is pressed to carry out reliable power supply for the BMS of electric automobile, the image information that model recognition system obtains can lead to
Cross cloud access unit and upload afield high in the clouds, the real-time imaging for facilitating user to check near charger, BMS communication systems are electronic
The BMS of automobile obtains with the BMS of electric automobile shake hands after reliable power supply being connected so as to carry out reliable real-time communication,
RISC main control units are analyzed to obtain the parameter of power supply needed for battery to its communication data, then to AC/DC conversion sections
Intelligent voltage resonant switching power be controlled and its is exported corresponding direct current, realize the charging work(to electric automobile
Energy；Composite measurement module realizes the voltage to the new off-board intelligent DC charging pile, electric current, insulation and corresponding input
The detection of output switch amount, corresponding safeguard measure is carried out if any abnormal, and local and high in the clouds alarm are provided, ensure charging pile peace
The new off-board intelligent DC charging pile is reliably connected by full stable operation, cloud access unit with distal end Cloud Server,
Realizing can also realize while each item data of charging pile is sent into distant place high in the clouds the new off-board intelligent DC is filled
The remote diagnosis and scene reprogramming function of electric stake, great convenience is provided to user and operation maintenance personnel.
The system principle general diagram describe the new off-board intelligent DC charging pile general hardware framework form with
Control flow.In Fig. 2, JK1 is exchange input switch, JK2 is single phase ac input switch, MK1-MK6 is power conversion modules
Input switch, ZC1 are direct current output switch, RT1 and RT2 are fuse, N3 be intelligent wide output voltage range Switching Power Supply,
M1-M6 is smart power conversion module.The operation of the new off-board intelligent DC charging pile is divided into two states：It is standby
State and working condition.No matter the exchange input switch of its left and right of which kind of running status closes.In the standby state, N3 with
M1-M6 is in low power mode of operation and only has its control unit working, and now power conversion part does not work, ZC1 exists
Open position.N2 is in sleep state, and the moment waits user to wake up.N1, N4, N5, N6 (an IMAQ part) are in operation shape
State, the now N1 as master controller and the normal communication of other units holding, the moment judges the state of other units, when useful
When family is accessed by network insertion, the data of charging pile are transferred to Cloud Server by N5 in real time and are supplied to user to inquire about；When
N2 is waken up by user and carries out man-machine interaction, when the new off-board intelligent DC charging pile judges that user will be charged, charging
Stake enters working condition, and N6 first carries out graphical analysis vehicle judgement, vehicle result is sent to N1, N1 by 485 interfaces and looked into
Database is looked for find the magnitude of voltage needed for vehicle BMS, it is electronic then to start N3 to make it export the direct current of the voltage class
Automobile BMS powers, and after N1 obtains charging electric vehicle information by CAN, controls M1-M6 to start simultaneously according to BMS data
Corresponding voltage x current is exported, ZC1 is closed when output direct current is consistent with batteries of electric automobile voltage, realizes to electric automobile
Charging, ZC1 disconnects at the end of charging, and charging pile returns to holding state.
See figure, 3, the hardware of the cloud access unit in new off-board intelligent DC charging pile, which is formed with operation principle, is：
Cloud access unit is made up of three parts：Risc processor is the main control section of core, 2.4GHz IEEE
802.11b/g modules, WIFI wireless routers, load inside main control section real-time embedded (SuSE) Linux OS and
MySQL relevant databases, embed ICP/IP protocol, http protocol, usb protocol stack, the main control that will be obtained by usb bus
Device data and video data carry out HTTP encapsulation and simultaneously carry out TLS/SSL encryption deposit MySQL databases, meet user based on B/
S visiting demand, and control 2.4GHz IEEE 802.11b/g modules to work by general purpose I/O port, by data by with
Too network interface, which is transmitted to 2.4GHz IEEE 802.11b/g modules, the module, meets the standards of IEEE 802.11, has low-power consumption
The 2.4GHz wireless communication modules of characteristic, contain all related RF elements --- crystal oscillator, the integrated MAC of band bypass and passive
Biasing circuit, base band, RF and power amplifier, and support that AES's and TKIP (WEP, WPA and WPA2 security) is built-in hard
Part, is internally integrated PCB helical antennas, and module embeds ICP/IP protocol stack and supports ieee standard 802.11 and TCP/IP, HTTP etc.
Service, easily realizes the wireless Web service based on B/S, and the 2.4GHz IEEE 802.11b/g modules are by master control part divided data
Carry out DSSS/OFDM and modulate to be formed to work in ISM band 2.400 to 2.484GHz wireless signal, by WIFI transmit to
WIFI wireless routers, transmitted conversely, the wireless signal of WIFI wireless routers also is demodulated into system by Ethernet interface
To main control section；WIFI wireless routers are using the 2.4GHz frequency ranges for meeting the standards of IEEE 802.11, set up a nothing
Line LAN, and the essential information of WLAN is configured, WLAN is connect by people by the iptables of linux system
Into 4G networks, the router is realized based on three modules, respectively 4G Network Service units, IEEE
802.11b/g controllers and GPS controllers, the function of 4G Network Service units are the wireless datas using operator
Card carries out PPP dialing so that router can be connected to internet, the work(of IEEE 802.11b/g controllers by carrier network
It can be so that wireless network card is operated in AP (Access Point) pattern, and configure the script file of DHCP,
To establish 2.4GHz WiFi WLANs, the router is loaded with built-in Linux operating system, and it is main real
The function of existing two aspects, on the one hand supports the drive of 4G Network Service units and IEEE 802.11b/g controllers
It is dynamic, on the other hand will be by the iptables packet filtering systems in embedded Linux system by WLAN and 4G nets
Network connects, the WLAN that 2.4GHz IEEE 802.11b/g modules are provided by WiFi channel access to the router
In, it is assigned to after an IP address, then carries out the reception and transmission of packet by the gateway of the WLAN, and the net
Guan Ze receives and sent packet to 4G networks by the network dial interface on 4G Network Service units, so that
The data interaction of main control section and internet is realized, can be with by the new off-board intelligent DC charging pile of the cloud access unit
The cloud access function of internet is easily realized, the height for realizing the charging pile is intelligent.
The hardware that Fig. 4 describes 3D gesture man-machine interfaces is formed and operation principle, C in figureH1—CH5：Receiving electrode and hand
Electric capacity between (the earth).For the body of people, the size of hand is very small, can be considered as ground connection all the time.CRX1TX——
CRX5TX：Electric capacity between receiving electrode and sender electrode.CRX1G——CRX5G：Receiving electrode is electric to electric capacity systematically+receiver
The input capacitance on road.CTxG：Sender electrode is to electric capacity systematically.The 3D gesture man-machine interfaces are real using electric field induction technology
The human-computer interaction interface of new generation that existing 3D gesture identifications and motion tracking combination LCD is shown.It utilizes the movement of hand and finger
Inputted as user command.With electric near field sensing principle, there is powerful 3D gesture input sensor-based systems, there is provided one group rich
Rich intelligent function, including：Integrated signal driver, the frequency adaptive input path for realizing automatic noise suppressed, with
And digital signal processing unit.Position data, touch or multiple point touching information can be added to freedom by the 3D gestures man-machine interface
Space gesture senses, and is particularly suitable for the generation user interface of charging pile.The core of the 3D gesture man-machine interfaces is 3D sensings
Technology, the technology are carried out advanced close to sensing using electric field (E-field).It can be by detecting, tracking and sorted users exist
Gesture in free space realizes user-interface application.Electric field is produced by electric charge, is distributed in the electrically charged three dimensions in surface.
Sustained electric field can be produced by applying DC voltage (DC) to electrode.Electric charge can change over time when applying alternating voltage (AC), from
And produce electric field.When electric charge with frequency f according to sinusoidal variation when, caused electromagnetic characteristics wavelength X=c/f, wherein c
It is velocity of wave --- the light velocity in vacuum.In the case where wavelength ratio geometric electrode size is much larger, actual magnetic component is zero, and not
Electric wave can be propagated.Resulting is quasistatic electric near field, available for sensing conductive body (such as human body).The 3D gesture man-machine interfaces
Using the transmission frequency in the range of 100kHz, this can reflect about 3km wavelength, and geometric electrode size is typically smaller than
14x14cm, Comparatively speaking wavelength is larger.When human hand or finger enter electric field, electric field can distortion.Due to the conduction of human body in itself
Property, therefore electric field line can be diverted to ground along hand, local three-dimensional electric field can reduce.The 3D gestures man-machine interface uses 5
The electric field change of individual bipole receivers (as shown in Figure 4) electrode detection diverse location, to measure electric field distortion --- deviation is connect
The continually changing signal received, the signal of 5 receiving electrodes enter ADC and carry out analog-to-digital conversion, and the digital quantity that will have been changed
Into the control of 3D hand signals and signal processing unit, carry out Digital Signal Processing and use to be based on hidden Markov model
The advanced random assortment of (Hidden Markov Model, HMM), you can realize gesture identification.Then the gesture that will identify that exists
Analyzed with LCD display information data to obtain the determination operation information of user in data processing and port control unit,
And transmitted to master controller, master controller by usb bus and accordingly controlled according to the information realization, and result echo is arrived into LCD
In, so as to which finishing man-machine interaction works.
Fig. 5 (a), Fig. 5 (b) describe the framework composition and workflow of intelligent switch power source.Fig. 5 (a) is intelligent work(
The theory diagram of rate conversion module.Fig. 5 (b) is the theory diagram of intelligent wide output voltage range Switching Power Supply.In Fig. 5 (a)
In, 380 volts of three-phase four-wire powers of exchange carry out EMI filtering and ensure that it is the preferable sine power supply of waveform first, through over commutation
Filtering forms dc source, is filtered by DC/DC multi-resonants power conversion and output, the stable direct current of last output smoothing
Electricity.Wherein DC/DC multi-resonants power conversion uses voltage resonance soft switch technique, including high-frequency resonant inverter bridge, high-frequency isolation
Three transformer, high-frequency rectification links, work in PFM (pulse frequency modulated) mode, using " resonance potential type double -loop control ",
With instant control, feedforward compensating function at the same again with resonant circuit high efficiency, high reliability, low interference it is notable excellent
Gesture；RISC main controllers receive the instruction of charging pile main controller and the feedback of direct current output, after analyzing and processing each item data
Control multi-resonant control loop, switching tube alternate conduction of the high-frequency resonant inverter bridge under the driving of control loop inside inverter bridge
And LC networks are formed with resonant inductance, the armature winding of main transformer, resonant capacitance, electric current becomes in key player on a team's curve in the network
Law, thus the electric current of the secondary output in main transformer also changes in sinusoidal rule, therefore, the pole of secondary switch type rectification two
Pipe is nature shut-off, is operated in Sofe Switch state；The commutation after natural zero-crossing of electric current in network starts the sine of opposite direction
Curvilinear motion, in the sinusoidal current of the secondary output opposite direction of main transformer, same switching tube is zero voltage turn-off, is being controlled back
Continue next switch periods under the driving on road.RISC main controllers monitor in real time direct current output feedback and charging pile temperature,
Voltage, electric current, and the stable operation for controlling multi-resonant control circuit to remain charger that responded according to data.Scheming
In 5 (a), single phase alternating current power supply carries out power conversion by EMI and PPFC access switch adjustment circuit, becomes
Powered after changing by output rectification filter for electric automobile BMS.The power conversion of the intelligent wide output voltage range Switching Power Supply
Pattern, with the control mode that PFM is combined acyclic type, single control exports, exports wide-voltage range regulative mode herein using PWM
In, constant frequency PWM control mode is used during the overwhelming majority, so as to realize small volume, in light weight and rapid dynamic response speed
The advantages of, and the control mode that the output area being difficult in constant frequency PWM mode is combined using PWM controls with PFM controls,
The corresponding switching frequency of Jimo fixed voltage, different output voltages have different switching frequencies, and when working, some is true
It is the PWM controls of constant frequency in the modulation system of the point, using this control model, the excursion of switching frequency when determining voltage
It is much smaller for simple PFM control modes, and output voltage range is more much bigger than simple PWM control modes, meets all
Vehicle BMS power reguirements.RISC main controllers receive the instruction of charging pile main controller and monitor direct current output feedback in real time, according to
Instruction responds with data controls PWM to remain BMS stable power-supplyings with PFM circuits.
Fig. 6 describes the framework composition and workflow of vehicle cab recognition.Image collection input (image is carried out to vehicle first
Distal end Cloud Server can be sent in real time, browsed at any time for user) frame intake is carried out to image, a width is background image,
One width is vehicle image, and then image is pre-processed, and is limited and interference by a variety of conditions during due to shooting image, figure
Often this will influence subsequent treatment to the color of picture with actual Incomplete matching, at this moment be handled, be reached using the method for colour correction
To enhancing image intelligibility and resolution ratio, for by the serious image of noise jamming, because noise spot is mapped as in a frequency domain more
High fdrequency component, therefore noise can be filtered out by LPF, i.e., graduation processing is carried out to image, the object of image after graduation processing
Fringe region can produce fuzzy phenomenon, in order to overcome objects in images edge blurry, carry out extraction marginal operation to it, that is, give
The difference of central point pixel value and its neighborhood averaging value sets a threshold value fixed, and the only point more than the threshold value can just replace with
Neighborhood averaging value, and when difference is not more than threshold value, still retain original value, so as to reduce the image mould caused by equalization
Paste.After carrying out above-mentioned image preprocessing, vehicle image and background image, which check the mark, computing and carries out cutting operation so that car
Separated from background, binary conversion treatment is being carried out to vehicle image in favor of feature extraction, intelligence is carried out to its feature
Analyze and digitize and contrasted with the model data in database, so as to identify vehicle model, most vehicle information is led at last
Cross usb bus and transmit to master controller, main controller and intelligent wide output voltage range Switching Power Supply is assigned just according to model data
Really instruction, it is electric automobile BMS intelligent power supplies to realize charging pile.
The basic principles, principal features and advantages of the present invention have been shown and described above.The technical staff of the industry should
Understand, the invention is not limited in any way for above-described embodiment, all to be obtained by the way of equivalent substitution or equivalent transformation
Technical scheme, all fall within protection scope of the present invention.
Claims (2)
- A kind of 1. off-board intelligent DC charging pile, it is characterised in that：Including Electric field 3D gesture inputs and LCD, card reader, control System part and AC/DC conversion sections, wherein, AC/DC conversion sections are the executing agencies for producing supply electric automobile direct current, by BMS accessory power supplys, Intelligent voltage resonant switching power and its protection location are formed, and BMS accessory power supplys and Intelligent voltage are humorous Switching Power Supply of shaking all produces suitable electric automobile BMS power reguirements and electric automobile by control section progress intelligent control and moved respectively The D/C power of power battery charging requirement；Card reader realizes user identification confirmation and payment function；Control section is by RISC master controls Unit processed, model recognition system, BMS communication systems, GPS module, composite measurement module, cloud access unit are formed, vehicle cab recognition System realize to will the vehicle of charging vehicle carry out visual identity confirmation and identification information being transferred into RISC main control units Treatment Analysis is carried out so that it is determined that power supply voltage level required for vehicle BMS and controlling the BMS of AC/DC conversion sections to aid in The dc source that power supply produces the voltage class carries out reliable power supply, the shadow that model recognition system obtains for the BMS of electric automobile As information by cloud access unit uploads afield high in the clouds, BMS communication systems after the BMS of electric automobile obtains reliable power supply i.e. With the BMS of electric automobile can shake hands and be connected so as to carry out reliable real-time communication, RISC main control units communicate number to it According to the parameter for being analyzed to obtain power supply needed for battery, then to the Intelligent voltage resonant switching power of AC/DC conversion sections Being controlled makes it export corresponding direct current, and single phase alternating current power supply is adjusted by EMI and PPFC access switch Whole circuit carries out power conversion, is powered after conversion by output rectification filter for electric automobile BMS, power conversion pattern uses PWM is with the control mode that PFM is combined acyclic type, single control exports, in wide-voltage range regulative mode is exported, in constant frequency PWM The output area that mode can be realized uses constant frequency PWM control mode, and is adopted in the output area that constant frequency PWM mode is difficult to The control mode being combined with PWM controls with PFM controls, RISC main controllers receive the instruction of charging pile main controller and monitored in real time Direct current output is fed back, and is responded according to instruction with feedback data and controls PWM to remain BMS stable power-supplyings with PFM circuits.
- 2. off-board intelligent DC charging pile according to claim 1, it is characterised in that：The cloud access unit is by three Divide and form：Risc processor is the main control section of core, 2.4GHz IEEE 802.11b/g modules, WIFI wireless routers, The real-time embedded (SuSE) Linux OS of loading and MySQL relevant databases inside main control section, embedded ICP/IP protocol, Http protocol, usb protocol stack, the communication data and image information that are obtained by usb bus are subjected to HTTP encapsulation and carried out TLS/SSL encryption deposit MySQL databases, meet the visiting demand based on B/S of user, and control by general purpose I/O port 2.4GHz IEEE 802.11b/g modules are worked, and the data in database are transmitted to 2.4GHz IEEE by Ethernet interface 802.11b/g modules, the module meet the standards of IEEE 802.11, have 2.4 GHz wireless communication modules of low power consumption characteristic, Containing all related RF elements --- the integrated MAC of crystal oscillator, band bypass and passive biasing circuit, base band, RF and power are put Big device, and AES, TKIP, WEP, WPA and WPA2 built in hardware are supported, it is internally integrated PCB helical antennas, 2.4GHz IEEE 802.11b/g modules embed TCP/IP protocol stacks and support IEEE standards 802.11 and TCP/IP, HTTP service, easily The wireless Web service based on B/S of realization, the 2.4GHz IEEE 802.11b/g modules carry out master control part divided data DSSS/OFDM, which modulates to be formed, works in the GHz of ISM wave bands 2.400 to 2.484 GHz wireless signal, is transmitted by WIFI To WIFI wireless routers, passed conversely, the wireless signal of WIFI wireless routers also is demodulated into system by Ethernet interface Deliver to main control section；WIFI wireless routers are using the 2.4GHz frequency ranges for meeting the standards of IEEE 802.11, set up a nothing Line LAN, and the essential information of WLAN is configured, WLAN is connect by people by the iptables of linux system Into 4G networks, the router is realized based on three modules, respectively 4G Network Service units, IEEE 802.11b/g controllers and GPS controllers, the function of 4G Network Service units are the wireless datas using operator Card carries out PPP dialing so that router can be connected to internet, the work(of IEEE 802.11b/g controllers by carrier network It can be so that wireless network card is operated in AP（Access Point）Pattern, and the script file of DHCP is configured, To establish 2.4 GHz WiFi WLANs, the router is loaded with built-in Linux operating system, and it is main real The function of existing two aspects, on the one hand supports the drive of 4G Network Service units and IEEE 802.11b/g controllers It is dynamic, on the other hand will be by the iptables packet filtering systems in embedded Linux system by WLAN and 4G nets Network connects, the WLAN that 2.4GHz IEEE 802.11b/g modules are provided by WiFi channel access to the router In, it is assigned to after an IP address, then carries out the reception and transmission of packet by the gateway of the WLAN, and the net Guan Ze receives and sent packet to 4G networks by the network dial interface on 4G Network Service units, so that Realize the data interaction of main control section and internet.
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| CN201510521956.0A CN105337382B (en) | 2015-08-21 | 2015-08-21 | A kind of off-board intelligent DC charging pile |
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| CN201510521956.0A CN105337382B (en) | 2015-08-21 | 2015-08-21 | A kind of off-board intelligent DC charging pile |
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| CN105337382B true CN105337382B (en) | 2018-03-30 |
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