CN105807735A - Charging station system and control method thereof - Google Patents

Charging station system and control method thereof Download PDF

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Publication number
CN105807735A
CN105807735A CN201410854452.6A CN201410854452A CN105807735A CN 105807735 A CN105807735 A CN 105807735A CN 201410854452 A CN201410854452 A CN 201410854452A CN 105807735 A CN105807735 A CN 105807735A
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Prior art keywords
charging pile
sub
station system
server
current charging
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CN201410854452.6A
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Chinese (zh)
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谢小刚
刘楠
王小龙
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BYD Co Ltd
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BYD Co Ltd
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Priority to CN201410854452.6A priority Critical patent/CN105807735A/en
Publication of CN105807735A publication Critical patent/CN105807735A/en
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P90/00Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
    • Y02P90/02Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]

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  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

The invention discloses a charging station system which comprises a charging pile, a sub grid module, a main grid module, a data acquisition device and a server. The sub grid module and the main grid module are connected with the charging pile. The data acquisition device is connected with the main grid module. The server is connected with the data acquisition device. The sub grid module and the main grid module are micro power wireless data transmission modules and are used for establishing wireless connection based on a ZigBee protocol stack and transmitting data generated in a charging process. The invention further provides a charging station system control method. According to the charging station system and the control method thereof, which are provided by the invention, the charging pile and the data acquisition device are in wireless transmission and are not easily affected by terrain; device cost and construction cost are low; the charging station system can be conveniently installed; the construction process of the charging station system can be accelerated; and the charging station system has the advantages of accurate information transmission, high efficiency and reduced late maintenance cost.

Description

Charging station system and control method thereof
Technical field
The present invention relates to charging technique, especially relate to a kind of charging station system and control method thereof.
Background technology
Along with the maturation further of electric automobile production technology, the performance of electric automobile becomes more and more higher, and the dependence of specialty charging station is made charging station turn the primary factor that restriction electric automobile popularizes into by electric automobile.And the charge system of charging station is completely dependent on data stream, therefore the communication between charging station infrastructure is particularly important, such as the communication between charging pile and data acquisition unit, the communication between data acquisition unit and server.
Existing charging pile many employings wire laying mode realizes this two-part communication.And wire laying mode is divided into controller local area network's (ControllerAreaNetwork, CAN) communication mode and Ethernet mode two kinds, CAN communication mode to utilize the CAN interface cloth CAN line of charging pile to connect data acquisition unit;Ethernet mode then adopts cloth netting twine mode to realize communication.
CAN communication mode is due to the characteristic of CAN interface, and a corresponding data acquisition unit of CAN line could realize the communication between server, and costly, CAN communication is also also unstable, often there will be communication packet loss phenomenon for consumptive material.Two ways all needs larger switch, installs inconvenient and relatively costly, and wire laying mode all has construction cost of labor big, and is limited by the shortcomings such as site topography, environmental factors, and difficulty of construction and later maintenance difficulty are bigger.Particularly the heavy current of charging pile is relatively big to wire laying mode communication interference, causes signal transmission issues.
Summary of the invention
It is contemplated that at least solve one of technical problem of existence in prior art.For this, the present invention needs to provide a kind of charging station system and control method thereof.
Charging station system according to embodiment of the present invention, it includes sub-net module that charging pile is connected with described charging pile, major network module is connected with described major network module data acquisition unit and the server being connected with described data acquisition unit.Described sub-net module and described major network module are micropower wireless data transmission module, for setting up the wireless connections based on ZigBee protocol stack, and transmit the data produced in charging process when described charging pile charges.
In some embodiments, described sub-net module adopts serial ports to connect described charging pile, and described major network module Ethernet connects described data acquisition unit.
In some embodiments, described server is remote server, and described data acquisition unit is connected by industry 3G network with described server.
Charging station system control method according to embodiment of the present invention, it includes
S1: at least one sub-net module being connected respectively with at least one charging pile and the major network module being connected with data acquisition unit set up the wireless connections based on ZigBee protocol stack, at least one charging pile described includes current charging pile, and at least one sub-net module described includes current sub network module;
S2: the state detection signal that at least one charging pile described is sent by described major network module according to described server replys charge condition information by least one sub-net module described.
In some embodiments, described step S1 includes:
S11: at least one sub-net module described and described major network module are arranged on same channel and consolidated network.
In some embodiments, described step S1 includes:
S12: start described server and be connected with the foundation of described data acquisition unit, charging pile transmission each described is detected signal by described major network Module cycle by described data acquisition unit, described sub-net module passes to described current charging pile identifying processing after receiving detection signal, if described detection signal is to detect described current charging pile, described current charging pile replys described status information, if described detection signal is not detect described current charging pile, then described current charging pile ignores described detection signal;
S13: if described server does not receive the status information that described current charging pile is replied within the scheduled time having sent described detection signal, judges that the connection between described current charging pile and described data acquisition unit disconnects, and described server retransmits described detection signal until receiving the described status signal of reply after the predetermined section time;And
S14: if described server receives the described status information that described current charging pile is replied within the scheduled time having sent described detection signal, then judge that the connection between described current charging pile and described data acquisition unit is normal.
In some embodiments, in sub-step S13, described current charging pile forbids charging of swiping the card,
And in sub-step S14, the acceptable charging of swiping the card of described current charging pile.
In some embodiments, described step S2 includes
S21: described server sends described state detection signal;
S22: if described current charging pile leaves unused, then described current charging pile replys idle state information, and returns described sub-step S21;
S23: swipe the card if described current charging pile receives, then described current charging pile replys card checking information, and described server carries out card checking according to described card checking information, if by, start described current charging pile and be charged, otherwise return sub-step S21;
S24: if described current charging pile charges, then described current charging pile replys charging status information, and returns described sub-step S21;And
S25: if described current charging pile charging complete, then described current charging pile replys charging complete information, and returns described sub-step S21.
In some embodiments, in described sub-step S24, charging status information described in described server process and feed back to described charging pile update screen show.
In some embodiments, in described sub-step S25, described server is according to the accounts information in described charging complete information updating data base and generates record of charging.
The charging station system of better embodiment of the present invention and control method thereof adopt wireless transmission method between described charging pile and described data acquisition unit, it is susceptible to the influence of topography, equipment cost and construction cost are all relatively low, greatly facilitate the installation of described charging station system, accelerate described charging station system construction process, and it is more accurate to transmit information, in hgher efficiency, decrease the cost of later maintenance.
The additional aspect of the present invention and advantage will part provide in the following description, and part will become apparent from the description below, or is recognized by the practice of the present invention.
Accompanying drawing explanation
Above-mentioned and/or the additional aspect of the present invention and advantage are from conjunction with will be apparent from easy to understand the accompanying drawings below description to embodiment, wherein:
Fig. 1 is the high-level schematic functional block diagram of the charging station system of better embodiment of the present invention.
Fig. 2 is the schematic flow sheet of the charging station system control method of better embodiment of the present invention.
Fig. 3 is the sub-process schematic diagram of the charging station system control method of Fig. 2.
Fig. 4 is another sub-process schematic diagram of the charging station system control method of Fig. 2.
Detailed description of the invention
Being described below in detail embodiments of the present invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has the element of same or like function from start to finish.The embodiment described below with reference to accompanying drawing is illustrative of, and is only used for explaining the present invention, and is not considered as limiting the invention.
In describing the invention, it is to be understood that term " first ", " second " only for descriptive purposes, and it is not intended that instruction or hint relative importance or the implicit quantity indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or implicitly include one or more described features.In describing the invention, " multiple " are meant that two or more, unless otherwise expressly limited specifically.
In describing the invention, it is necessary to explanation, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, for instance, it is possible to it is fixing connection, it is also possible to be removably connect, or connect integratedly;Can be mechanically connected, it is also possible to be electrically connect or can intercom mutually;Can be joined directly together, it is also possible to be indirectly connected to by intermediary, it is possible to be connection or the interaction relationship of two elements of two element internals.For the ordinary skill in the art, it is possible to understand above-mentioned term concrete meaning in the present invention as the case may be.
Following disclosure provides many different embodiments or example for realizing the different structure of the present invention.In order to simplify disclosure of the invention, hereinafter parts and setting to specific examples are described.Certainly, they are only merely illustrative, and are not intended to the restriction present invention.Additionally, the present invention can in different examples repeat reference numerals and/or reference letter, this repetition is for purposes of simplicity and clarity, the relation between itself not indicating discussed various embodiment and/or arranging.Additionally, the example of the various specific technique that the invention provides and material, but those of ordinary skill in the art are it can be appreciated that the use of the application of other techniques and/or other materials.
Fig. 1 is the functional module block diagram of the charging station system 10 of better embodiment of the present invention.The data acquisition unit 18 that the charging station system 10 of better embodiment of the present invention includes sub-net module 14 that charging pile 12 is connected with charging pile 12, major network module 16 is connected with major network module 16;And the server 19 being connected with data acquisition unit 18.Sub-net module 14 and major network module 16 are micropower wireless data transmission module, for setting up the wireless connections based on purple butterfly (ZigBee) protocol stack, and transmit the data produced in charging process when charging pile 12 charges.
ZigBee is based on the low-power consumption LAN protocol of IEEE802.15.4 standard.Specifying according to international standard, ZigBee technology is the wireless communication technology of a kind of short distance, low-power consumption.
The charging station system 10 of better embodiment of the present invention adopts wireless transmission method between charging pile 12 and data acquisition unit 18, it is susceptible to the influence of topography, equipment cost and construction cost are all relatively low, greatly facilitate the installation of charging station system 10, accelerate charging station system 10 construction process, and it is more accurate to transmit information, in hgher efficiency, decrease the cost of later maintenance.
ZigBee technology can realize wireless many-to-one connection.In present embodiment, charging station system 10 includes ten charging piles 12, and each charging pile 12 is equipped with a sub-net module 14, and sets up wireless connections by ten sub-net module 14 and major network module 16.
In present embodiment, sub-net module 14 and adopting between major network module 16 based on QPSK (QuadraturePhaseShiftKeying, QPSK) modulation system and efficient forward error correction channel technology.
QPSK is a kind of digital modulation mode, is divided into absolute phase-shift and relative phase shift two kinds.Owing to absolute phase-shift mode exists phase fuzzy problem, adopt relative phase shift system so main in practice.Have been widely used at present in radio communication, become a kind of highly important modulation demodulation system in modern communications.And forward error correction coding Channel Technology is by adding redundant correcting code in arranging at transmission code, under certain condition, can automatically correct transmission error code by decoding, reduce the bit error rate receiving signal.
This improves the ability of the anti-bursty interference of data and random disturbances between sub-net module 14 and major network module 16.
In present embodiment, sub-net module 14 and between major network module 16 adopt direct sequence spread spectrum technology.
The frequency expansion sequence of direct sequence spread spectrum technology two-forty extends the frequency spectrum of signal at transmitting terminal, and de-spreads with identical spread spectrum code sequence at receiving terminal, and the spread-spectrum signal launched is reduced into original signal.Direct sequence spread spectrum technology is that carrier wave is modulated by direct pseudo noise sequence, and the data message that transmit needs after chnnel coding, carries out mould 2 with pseudo noise sequence and generation compound key removes modulation carrier wave.
Therefore, effective anti-with the interference of frequency arrowband between sub-net module 14 and major network module 16.
In present embodiment, sub-net module 14 and adopt between major network module 16 and carry the verification of 16 CRCs (CyclicRedundancyCheck, CRC).Accordingly, it is capable to effectively error detection.
In present embodiment, sub-net module 14 and between major network module 16 air transfer rate reach 250kbps, in sighting distance situation, antenna sets high 2 meters, and transmission range reaches 1000 meters, is the wireless transmission method of a kind of efficiently and accurately.
In present embodiment, sub-net module 14 adopts serial ports to connect charging pile 12, and major network module 16 Ethernet connects data acquisition unit 18.Server 19 is home server, and data acquisition unit 18 Ethernet is connected with server 19, and then, server 19 is connected with remote server again.
In other embodiments, also can sub-net module 14 or major network module 16 interface being modified, suitable device is wider.
In other embodiments, in the small numbers of situation of charging pile 12, server 19 can be directly remote server, and data acquisition unit 18 is connected by industry 3G network with server 19.Namely charging pile 12 is to data acquisition unit 18, and data acquisition unit 18 all adopts wireless mode to server 19.This pattern can significantly reduce the cost of charging station system 10.
Refer to Fig. 2, the charging station system control method of better embodiment of the present invention, including
S1: at least one sub-net module 14 being connected respectively with at least one charging pile 12 and the major network module 16 being connected with data acquisition unit 18 set up the wireless connections based on ZigBee protocol stack, at least one charging pile 12 includes current charging pile 12, and at least one sub-net module 14 includes current sub network module 14;
S2: the state detection signal that at least one charging pile 12 is sent by major network module 16 according to server 19 replys charge condition information by least one sub-net module 14.
The charging station system control method of better embodiment of the present invention adopts wireless transmission method between charging pile 12 and data acquisition unit 18, it is susceptible to the influence of topography, equipment cost and construction cost are all relatively low, greatly facilitate the installation of charging station system 10, accelerate charging station system 10 construction process, and it is more accurate to transmit information, in hgher efficiency, decrease the cost of later maintenance.
Referring to Fig. 3, in present embodiment, step S1 includes:
S11: configure at least one sub-net module 14 and major network module 16, at least one sub-net module 14 and major network module 16 are arranged on same channel and consolidated network.This process is realized by configuration software after all facilities have been constructed.Then, start server 19 information being responsible for collecting to process, transmit and store.
In present embodiment, step S1 includes:
S12: start server 19 and be connected with data acquisition unit 18 foundation, data acquisition unit 18 is circulated by major network module 16 and each charging pile 12 sends detection signal, sub-net module 14 passes to current charging pile 12 identifying processing after receiving detection signal, if detection signal is to detect current charging pile 12, current charging pile 12 recoil state information, if detection signal is not detect current charging pile 12, then current charging pile 12 ignores detection signal;
S13: if server 19 does not receive the status information that current charging pile 12 is replied within the scheduled time having sent detection signal, judges that the connection between current charging pile 12 and data acquisition unit 18 disconnects, and server 19 retransmits detection signal until receiving the status signal of reply after the predetermined section time;And
S14: if server 19 receives the status information that current charging pile 12 is replied within the scheduled time having sent detection signal, then judge that the connection between current charging pile 12 and data acquisition unit 18 is normal.
In sub-step S13, current charging pile 12 forbids charging of swiping the card.
And in sub-step S14, the current acceptable charging of swiping the card of charging pile 12.
Referring to Fig. 4, in present embodiment, step S2 includes
S21: server 19 sends state detection signal;
S22: if current charging pile 12 leaves unused, then current charging pile 12 replys idle state information, and returns sub-step S21;
S23: swipe the card if current charging pile 12 receives, then current charging pile 12 replys card checking information, and server 19 carries out card checking according to card checking information, if by, start current charging pile 12 and be charged, otherwise return sub-step S21;
S24: if current charging pile 12 charges, then current charging pile 12 replys charging status information, and returns sub-step S21, and server 19 processes charging status information and feeds back to charging pile 12 and update screen and show;And
S25: if current charging pile 12 charging complete, then current charging pile 12 replys charging complete information, and returns sub-step S21, and server 19 is according to the accounts information in charging complete information updating data base and generates record of charging.
In whole process, the major network module 16 fixed time broadcast detection signal of data acquisition unit 18 or state detection signal, sub-net module 14 all will receive detection signal or then state detection signal resolves according to given protocol and return corresponding information, detection signal or state detection signal to None-identified do not deal with, therefore whole communication is half-duplex operation, therefore can well control data transmission, reduce information chaotic.The distance of sub-net module 14 and major network module 16 should within a km, and this condition substantially can meet all of charging pile 12 and build.
To sub-net module 14, after server 19 receives information, it is determined that information type, because major network module 16 is broadcast, it is possible that receive the information issuing other charging pile 12, if then not dealing with.If charging pile 12 is in charging, then receiving the displaying information on screen after processing that server 19 is sent, charging pile 12 then updates screen, is then back to real-time charging status information;If receiving the signal that detection connects, then return and breathe frame.
For major network module 16, after receiving the information that charging pile 12 is sent by sub-net module 14, it is judged that information type, if for breathing frame, then judging whether current and current charging pile 12 connects normal;If what receive is card checking information, then forwarding server 19 does card checking, and then the result returns to charging pile 12;If what receive is status information in charging, being then given to after server 19 deals with and result returns charging pile 12, charging pile 1 updates screen with this real time information and shows;Complete charge information such as what receive, then server 19 last real time information more new database accounts information.
In the description of this specification, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " exemplary embodiment ", " example ", " concrete example " or " some examples " etc. means in conjunction with described embodiment or example describe are contained at least one embodiment or the example of the present invention.In this manual, the schematic representation of above-mentioned term is not necessarily referring to identical embodiment or example.And, the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiments or example.
While embodiments of the present invention have been illustrated and described, it will be understood by those skilled in the art that: these embodiments can being carried out multiple change, amendment, replacement and modification when without departing from principles of the invention and objective, the scope of the present invention is limited by claim and equivalent thereof.

Claims (10)

1. a charging station system, it is characterised in that include
Charging pile;
The sub-net module being connected with described charging pile;
Major network module;
The data acquisition unit being connected with described major network module;And
The server being connected with described data acquisition unit;
Described sub-net module and described major network module are micropower wireless data transmission module, for setting up the wireless connections based on ZigBee protocol stack, and transmit the data produced in charging process when described charging pile charges.
2. charging station system as claimed in claim 1, it is characterised in that described sub-net module adopts serial ports to connect described charging pile, and described major network module Ethernet connects described data acquisition unit.
3. charging station system as claimed in claim 1, it is characterised in that described server is remote server, described data acquisition unit is connected by industry 3G network with described server.
4. a charging station system control method, it is characterised in that include
S1: at least one sub-net module being connected respectively with at least one charging pile and the major network module being connected with data acquisition unit set up the wireless connections based on ZigBee protocol stack, at least one charging pile described includes current charging pile, and at least one sub-net module described includes current sub network module;
S2: the state detection signal that at least one charging pile described is sent by described major network module according to described server replys charge condition information by least one sub-net module described.
5. charging station system control method as claimed in claim 4, it is characterised in that described step S1 includes:
S11: at least one sub-net module described and described major network module are arranged on same channel and consolidated network.
6. charging station system control method as claimed in claim 4, it is characterised in that described step S1 includes:
S12: start described server and be connected with the foundation of described data acquisition unit, charging pile transmission each described is detected signal by described major network Module cycle by described data acquisition unit, described sub-net module passes to described current charging pile identifying processing after receiving detection signal, if described detection signal is to detect described current charging pile, described current charging pile replys described status information, if described detection signal is not detect described current charging pile, then described current charging pile ignores described detection signal;
S13: if described server does not receive the status information that described current charging pile is replied within the scheduled time having sent described detection signal, judges that the connection between described current charging pile and described data acquisition unit disconnects, and described server retransmits described detection signal until receiving the described status signal of reply after the predetermined section time;And
S14: if described server receives the described status information that described current charging pile is replied within the scheduled time having sent described detection signal, then judge that the connection between described current charging pile and described data acquisition unit is normal.
7. charging station system control method as claimed in claim 6, it is characterised in that in sub-step S13, described current charging pile forbids charging of swiping the card,
And in sub-step S14, the acceptable charging of swiping the card of described current charging pile.
8. charging station system control method as claimed in claim 4, it is characterised in that described step S2 includes
S21: described server sends described state detection signal;
S22: if described current charging pile leaves unused, then described current charging pile replys idle state information, and returns described sub-step S21;
S23: swipe the card if described current charging pile receives, then described current charging pile replys card checking information, and described server carries out card checking according to described card checking information, if by, start described current charging pile and be charged, otherwise return sub-step S21;
S24: if described current charging pile charges, then described current charging pile replys charging status information, and returns described sub-step S21;And
S25: if described current charging pile charging complete, then described current charging pile replys charging complete information, and returns described sub-step S21.
9. charging station system control method as claimed in claim 8, it is characterised in that in described sub-step S24, charging status information described in described server process also feeds back to described charging pile and updates screen and show.
10. charging station system control method as claimed in claim 8, it is characterised in that in described sub-step S25, described server is according to the accounts information in described charging complete information updating data base and generates record of charging.
CN201410854452.6A 2014-12-31 2014-12-31 Charging station system and control method thereof Pending CN105807735A (en)

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Application publication date: 20160727