The charging pile that the two net of wireless carrier for common cell is complementary and application process
Technical field
The invention belongs to electric automobile management domain, particularly relate to for the complementary charging pile of the two net of wireless carrier of common cell and application process.
Background technology
Under new forms of energy policy support, estimate that China's new-energy automobile demand in 2015 will reach 97.7 ten thousand, average growth rate per annum 216%.State Grid Corporation of China plans by construction 1700 charging stations before 2015, will build up 2000 charging stations, 400,000 charging piles by China in 2015.Electric automobile charging pile is divided into the discrete stake two kind outer with station of stake in charging station, and outer discrete charging pile of especially standing, geographic layout is disperseed, One's name is legion.Along with electric automobile steps into residential households, charging pile in residential quarter also can get more and more, current electric automobile operation administrative department realizes mainly through GPRS passage for the management of this type of discrete charging pile, although GPRS passage is more stable, this mode can cause increasing for the expense of communication.
Chinese patent 201020202583.3 discloses a kind of electric automobile charging pile with wireless supervisory control system, is realized the communication of discrete charging pile and background management system by GPRS, CDMA or 3G module.This patent employs Public Mobile Network and carries out transfer of data, and every platform charging pile will install a GPRS/CDMA/3G communication module, adds the communication cost of system.
Chinese patent 201210013267.5 discloses a kind of wireless acquisition system and the means of communication thereof of charging pile, Chinese patent 201120174600.1 discloses a kind of electric automobile charging pile with wireless monitoring terminal, above two patents are all the data acquisitions by achieving in 802.11n/WIFI technology charging pile, and this technology needs WIFI router to coordinate data communication.Current employing WiFi technology carries out charging pile management existence two drawbacks: one is cannot transistroute, and can only realize data communication in router signal cover, distance only has about tens to one hundred meter; Two is restrictions of equipment performance due to router itself and bandwidth, generally can only access tens WIFI terminal, cannot meet demand during practical application.
Chinese patent 201210085959.0 discloses a kind of discrete charging pile data acquisition system for electric automobile, sets up Zigbee network, realize data communication by the submodule that Zigbee primary module and discrete charging pile are installed.But ZigBee technology transmission range only has 10 ~ 100 meters, when there is air interference around, the communication of Zigbee can be subject to extreme influence simultaneously.
Chinese patent 201110071414.X discloses a kind of electric automobile automatic charging device and the method that utilize power line carrier communication, by power-line carrier communication, realizes the transfer of data to electric automobile automatic charging device.Although this invention can solve the limited problem of signal cover, but in common cell, due to the use of various electric appliance and electronic equipment, make in power circuit, to there is various harmonic wave, disturbance, power carrier signal error code is caused to increase, very large on communication quality impact.
Though above prior art achieves certain achievement, but have that transmission range is short, system can be accessed by that charging pile quantity is few, beyond signal cover cannot normal communication, wireless signal interference cannot be tackled, cannot the drawbacks such as line-hit be avoided, the demand of charging pile management when cannot meet electric automobile large-scale promotion.
Summary of the invention
The object of the invention is to solve the problem, providing the complementary charging pile of the two net of a kind of wireless carrier for common cell and application process thereof, solve the problem on extensive charging pile access electric automobile backstage in common cell.By this invention, charging pile carries out data interaction by wireless, carrier wave two kinds of free means of communications and electric automobile backstage, decreases great number communication expense, effectively avoids due to periphery interference source or other is with the impact of frequency range wireless signal on communication quality simultaneously.
For achieving the above object, technical scheme of the present invention is as follows:
The charging pile that the two net of wireless carrier for common cell is complementary, comprises master control borad, input and output processing module, measures processing module, print module, intelligent electric meter, keyboard, CAN data-interface, smart card reader module, camera, LED display and communication module.
Described master control borad, for connecting input and output processing module, measure processing module, print module, intelligent electric meter, keyboard, CAN data-interface, smart card reader module, camera, LED display and communication module, realize input and output module, measure processing module, intelligent electric meter, keyboard, smart card reader module, the data acquisition of camera, to input and output processing module, print module, the control of LED display, and realize the data interaction with other CAN equipment by CAN data-interface, to be realized by communication module and other charging pile and cell data manage data transmission between unit concentratedly.。
Described input and output processing module is connected with mains switch, gathers switching-on and switching-off state and control mains switch to carry out deciliter; Described measurement processing module and mutual inductance model calling, gather mutual inductance module data; Described print module completes the printing function of charging bill; Described intelligent electric meter completes the function of measuring to charge capacity; Described keyboard receives the instruction that user issues; Described CAN data-interface is connected with BMS, obtains the measurement data in BMS; Described smart card reader module carries out the read-write of intelligent charge card; Described camera completes the monitoring to charging process and charging personnel.
Described communication module connects master control borad, and the instruction of response master control borad outwards sends data, and the data of reception are back to master control borad.。
As a further improvement on the present invention, described communication module comprises micro treatment module, micro power radio module, carrier communication module, filtration module.
Micro treatment module connects micro power radio module, carrier communication module and master control borad, carries out communication link management, communication data sends, verifying work.The instruction of response master control borad, issue communication instruction and data to micro power radio module and carrier communication module, and receive the data of micro power radio module and carrier communication module simultaneously, compare and verify, after verifying, data transfer is to master control borad.
Under normal circumstances, micro treatment module is based on micro power radio module communication, and the data of carrier communication module are as preliminary data and verification.When there is interference or other factors impact around, result through micro power radio module when normally cannot carry out transfer of data, it is mainly carry out data interaction, until micro power radio module recovers normal communication that communication module then turns by carrier communication module.
Described micro power radio module, is connected with micro treatment module, uses micropower wireless mode to complete charging pile and other charging pile and cell data and manages data transmission between unit concentratedly.
The wireless operating frequency of 470mHz ~ 490mHz that described micro power radio module adopts the National Radio committee to require, adopt forward error correction channel technology, air transfer rate can reach 100Kbps, and the non-relay transmitting distance in open ground can reach 1500 meters.
Described micro power radio module supports wireless self-networking, can complete the communication network tissue of all charging piles in common cell when prosthetic intervention.
Described micro power radio module can carry out data interaction between any two, and supported data transmission realizes data multilevel relaying with this, and data are sent to final destination by the mode transmitted by one-level level.
Described micro power radio module can realize radio band automatic frequency-hopping function, when there is the micropower wireless signal of other community charging pile around common cell, micro power radio module, by automatic frequency-hopping function, changes communication frequency, avoids and the conflicting of other district wireless signals.
Described micro power radio module can realize automatically adjusting in power tolerance band, when the wireless signal between other micro power radio modules of surrounding is more weak, automatically strengthens transmitting power, strengthens signal, provides communication reliability; When wireless signal between other micro power radio modules of surrounding is stronger, under the prerequisite ensureing communication success rate, automatically reduce transmitting power, reduce electric energy loss.
Described carrier communication module is connected with micro treatment module, filtration module, accepts the instruction of micro treatment module and the data received are back to micro treatment module;
Described filtration module is connected with carrier communication module, for completing the filtering function of the interference signal in carrier communication.
Described filtration module comprises transmission active filter, sends passive filter, receives passive filter, when data send, active filter completes and amplifies the active power filtering of signal of communication and power amplifier, then is coupled to power line carries out Signal transmissions through sending passive filter; During data receiver, signal of communication is sent into microprocessor and is processed after receiving passive filter.
For the application process of the complementary charging pile of the two net of wireless carrier of common cell, comprise following steps:
Step one: after charging pile installs, start charging pile, allow the work of charging pile communication module, carry out micro power radio module and carrier module MANET, set up the communication channels of each charging pile to cell data centralized management unit, and record the communication quality of communication channels.After networking completes, the successful charging pile of failed cluster is debugged.
Step 2: charging pile and cell data manage unit concentratedly when carrying out data interaction, communication module in charging pile first by Data dissemination to micro power radio module and carrier module, send data to cell data centralized management unit by wireless and carrier wave two kinds of modes simultaneously.
Step 3: wirelessly during communication, communication module carries out communication according to the optimum communication channels of the arrival cell data centralized management unit recorded in internal memory, as Communications failure then selects suboptimum communication channels successively, and according to this communication channels service condition, the success rate of each communication channels in adjustment internal memory.As failure then temporarily abandons wireless communication mode continuously.
Step 4: charging pile communication module receives and data of carrier wave two kind modes wireless from micropower simultaneously, and compares to data and verify, and based on the data that micropower is wireless, carrier data is auxiliary.Within at the appointed time, do not receive the wireless data of micropower, then get carrier data and carry out subsequent analysis.
Step 5: as there is the charging pile that micropower wireless signal cannot be networked, then start by set date MANET function, for this charging pile re-establishes wireless telecommunications route.
Beneficial effect of the present invention:
1) micro power radio module is used to carry out communication in charging pile, reduce the communication expense of every platform charging pile, save the spending for communication in whole electric automobile operation network, decrease the communication link on directly access electric automobile operation management system backstage, improve the speed of service of system background.
2) micropower wireless signal wide coverage, has automatic frequency-hopping function, and can according to the Mass adjust-ment transmitting power of communication signal, and strong adaptability, signal stabilization is high.Carrier channel adds filtration module, decreases the interference in power circuit, enhances the antijamming capability of carrier signal, reduces the error rate of signal.
3) micropower is wireless works with carrier wave binary channels simultaneously, verifies each other, ensure that the communication reliability of charging pile, improve communication accuracy.
4) charging pile application micropower is wireless with carrier wave binary channels, and modular applications, does not need the laying of communication line, and Installation and Debugging are convenient, reduces thread debug workload, is conducive to the promotion and application of charging pile in the place such as residential quarter, Public Parking.
Accompanying drawing explanation
The charging pile structure chart that the two net of Fig. 1 wireless carrier for common cell of the present invention is complementary;
Fig. 2 charging pile communication module of the present invention structure chart;
Fig. 3 filtering modular structure figure of the present invention;
The charging pile application process flow chart that the two net of Fig. 4 wireless carrier for common cell of the present invention is complementary;
The charging pile network diagram that the two net of Fig. 5 wireless carrier for common cell of the present invention is complementary;
Wherein: 100, charging pile; 101, master control borad; 102, input and output processing module; 103, measure processing module; 104, print module; 105, intelligent electric meter; 106, keyboard; 107, CAN data-interface; 108, smart card reader module; 109, camera; 110, LED display; 200, communication module; 201, micro treatment module; 202, micro power radio module; 203, carrier communication module; 204, filtration module, 301, send active filter; 302, send passive filter; 303, receive passive filter; 400, cell data centralized management unit.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the invention will be further described.
As shown in Figure 1, the charging pile that the two net of wireless carrier for common cell is complementary, comprises master control borad 101, input and output processing module 102, measures processing module 103, print module 104, intelligent electric meter 105, keyboard 106, CAN data-interface 107, smart card reader module 108, camera 109, LED display 110 and communication module 200.
Described master control borad 101, for connecting input and output processing module 102, measure processing module 103, print module 104, intelligent electric meter 105, keyboard 106, CAN data-interface 107, smart card reader module 108, camera 109, LED display 110 and communication module 200, realize input and output module 102, measure processing module 103, intelligent electric meter 105, keyboard 106, smart card reader module 108, the data acquisition of camera 109, to input and output processing module 102, print module 104, the control of LED display 110, and realize the data interaction with other CAN equipment by CAN data-interface 107, to be realized by communication module 200 and other charging pile 100 and cell data manage data transmission between unit 400 concentratedly.。
Described input and output processing module 102 is connected with mains switch, gathers switching-on and switching-off state and control mains switch to carry out deciliter; Described measurement processing module 103 and mutual inductance model calling, gather mutual inductance module data; Described print module 104 completes the printing function of charging bill; Described intelligent electric meter 105 completes the function of measuring to charge capacity; Described keyboard 106 receives the instruction that user issues; Described CAN data-interface 107 is connected with BMS, obtains the measurement data in BMS; Described smart card reader module 108 carries out the read-write of intelligent charge card; Described camera 109 completes the monitoring to charging process and charging personnel.
Described communication module 200 connects master control borad 101, and the instruction of response master control borad 101 outwards sends data, and the data of reception are back to master control borad 101.
As shown in Figure 2, described communication module 200 comprises micro treatment module 201, micro power radio module 202, carrier communication module 203, filtration module 204.Micro treatment module 201 connects micro power radio module 202, carrier communication module 203 and master control borad 101, carries out communication link management, communication data sends, verifying work.The instruction of response master control borad 101, communication instruction and data are issued to micro power radio module 202 and carrier communication module 203, and receive the data of micro power radio module 202 and carrier communication module 203 simultaneously, compare and verify, after verifying, data transfer is to master control borad 101.Under normal circumstances, micro treatment module 201 is based on micro power radio module 202 communication, and the data of carrier communication module 203 are as preliminary data and verification.When occurring interference or other factors impact around, result through micro power radio module 202 when normally cannot carry out transfer of data, it is that master carries out data interaction, until micro power radio module 202 recovers normal communication that communication module 200 turns by carrier communication module 203.
Described micro power radio module 202, is connected with micro treatment module 201, uses micropower wireless mode to complete charging pile 100 and other charging pile 100 and cell data and manages data transmission between unit 400 concentratedly.
The wireless operating frequency of 470mHz ~ 490mHz that described micro power radio module 202 adopts the National Radio committee to require, adopt forward error correction channel technology, air transfer rate can reach 100Kbps, and the non-relay transmitting distance in open ground can reach 1500 meters.
Described micro power radio module 202 supports wireless self-networking, can complete the communication network tissue of all charging piles in common cell when prosthetic intervention.
Described micro power radio module 202 can carry out data interaction between any two, and supported data transmission realizes data multilevel relaying with this, and data are sent to final destination by the mode transmitted by one-level level.
Described micro power radio module 202 can realize radio band automatic frequency-hopping function, when there is the micropower wireless signal of other community charging pile around common cell, micro power radio module 202, by automatic frequency-hopping function, changes communication frequency, avoids and the conflicting of other district wireless signals.
Described micro power radio module 202 can realize automatically adjusting in power tolerance band, when the wireless signal between other micro power radio modules 202 of surrounding is more weak, automatically strengthens transmitting power, strengthens signal, provides communication reliability; When wireless signal between other micro power radio modules of surrounding is stronger, under the prerequisite ensureing communication success rate, automatically reduce transmitting power, reduce electric energy loss.
Described carrier communication module 203 is connected with micro treatment module 201, filtration module 204, accepts the instruction of micro treatment module 201 and the data received are back to micro treatment module 201;
Described filtration module 204 is connected with carrier communication module 203, for completing the filtering function of the interference signal in carrier communication.
As shown in Figure 3, described filtration module 204 is made up of transmission active filter 301, transmission passive filter 302, reception passive filter 303, when data send, active filter 301 completes and amplifies the active power filtering of signal of communication and power amplifier, then is coupled to power line carries out Signal transmissions through sending passive filter 302; During data receiver, signal of communication is sent into microprocessor and is processed after receiving passive filter 303.
Described input and output processing module 102 is connected with mains switch, gathers switching-on and switching-off state and control mains switch to carry out deciliter; Described measurement processing module 103 and mutual inductance model calling, gather mutual inductance module data; Described print module 104 completes the printing function of charging bill; Described intelligent electric meter 105 completes the function of measuring to charge capacity; Described keyboard 106 receives the instruction that user issues; Described CAN data-interface 107 is connected with BMS, obtains the measurement data in BMS; Described smart card reader module 108 carries out the read-write of intelligent charge card; Described camera 109 completes the monitoring to charging process and charging personnel.
As shown in Figure 4, after charging pile 100 installs, staff starts charging pile 100, communication module 200 is allowed to work, carry out micro power radio module 202 and carrier module 203 MANET, set up the communication channels of each charging pile 100 to cell data centralized management unit 400, and record the communication quality of communication channels.After networking completes, the successful charging pile 100 of failed cluster is debugged.Charging pile 100 and cell data manage unit 400 concentratedly when carrying out data interaction, communication module 200 first by Data dissemination to micro power radio module 202 and carrier module 203, send data to cell data centralized management unit 400 by wireless and carrier wave two kinds of modes simultaneously.Wirelessly during communication, communication module 200 carries out communication according to the optimum communication channels of the arrival cell data centralized management unit 400 recorded in internal memory, as Communications failure then selects suboptimum communication channels successively, and according to this communication channels service condition, the success rate of each communication channels in adjustment internal memory.As failure then temporarily abandons wireless communication mode continuously.Communication module 200 receives and data of carrier wave two kind modes wireless from micropower simultaneously, and compares to data and verify, and based on the data that micropower is wireless, carrier data is auxiliary.Within at the appointed time, do not receive the wireless data of micropower, then get carrier data and carry out subsequent analysis.As there is the charging pile 100 that micropower wireless signal cannot be networked, then start by set date MANET function, for this charging pile 100 re-establishes wireless telecommunications route.
As shown in Figure 5, a cell data centralized management unit 400 can manage thousands of charging piles 100 simultaneously, for the charging pile 100 that cell data centralized management unit 400 micropower wireless signal directly covers, cell data centralized management unit 400 directly can carry out communication with charging pile 100; For the charging pile 100 that cell data centralized management unit 400 micropower wireless signal cannot directly cover, then can be managed concentratedly the data interaction of unit 400 by other charging pile 100 transfer realization and cell data, transfer jumping figure more than 10 times, thus can meet the communication covering in comparatively big bus community or region (as radius is greater than 2km).
By reference to the accompanying drawings the specific embodiment of the present invention is described although above-mentioned; but not limiting the scope of the invention; one of ordinary skill in the art should be understood that; on the basis of technical scheme of the present invention, those skilled in the art do not need to pay various amendment or distortion that creative work can make still within protection scope of the present invention.