CN102118042A - Charging station management system and method - Google Patents
Charging station management system and method Download PDFInfo
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- CN102118042A CN102118042A CN2009102396483A CN200910239648A CN102118042A CN 102118042 A CN102118042 A CN 102118042A CN 2009102396483 A CN2009102396483 A CN 2009102396483A CN 200910239648 A CN200910239648 A CN 200910239648A CN 102118042 A CN102118042 A CN 102118042A
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Abstract
The invention discloses a charging station management system which at least comprises an electric energy conversion module, a charging port group and a control module, wherein the electric energy conversion module is used for converting the energy into electric energy meeting the requirement of electric equipment; the charging port group is connected with the electric energy conversion module and used for providing a charging interface; and the control module is connected with the electric energy conversion module and the charging port group, and used for processing an information generation control signal of the electric equipment, executing corresponding actions according to the control signal, and managing the charging port group. The charging station provides a convenient charging service for different electric equipment, and can allocate the charging state and charging energy reasonably.
Description
[technical field]
The present invention relates to a kind of electric energy management system and method, relate in particular to a kind of charging station management system and method.
[background technology]
Intelligent grid, based on the physics electrical network, modern advanced sensing measurement technology, mechanics of communication, information technology, computer technology and control technology and physics grid height is the integrated and novel power grid of formation.Fully to satisfy the user to the demand of electric power with optimize allocation of resources, guarantee fail safe, reliability and the economy of supply of electric power, satisfy the environmental protection constraint, guarantee the quality of power supply, adapt to the electricity market development, realize, cleaning reliable, economic, interactive supply of electric power and value-added service the user.
Along with science and technology and expanding economy, the obtaining of intelligent grid popularized and used, and distribution type renewable energy also will be used on a large scale as the important part of intelligent grid.Therefore, also will constantly increase with the equipment of electric energy, for example storage battery, electric bicycle, electric automobile etc. as drive energy.When the electric energy of these power consumption equipments was about to exhaust, the charging station that just needs to seek similar gas station provided the charging service to power consumption equipment.Because the requirement difference to electric energy of different power consumption equipments, charging station can't provide electric energy in time, easily.
[summary of the invention]
In view of this, be necessary defective,, provide a kind of charging station management system and method that charging service easily is provided for different power consumption equipments the energy of different power consumption equipments and the configuration of charged state at prior art.
The invention provides a kind of charging station management system, comprise at least: electric energy conversion module, being used for energy conversion is the electric energy that meets the power consumption equipment demand; The charging port group links to each other with described electric energy conversion module, is used to provide charging inlet; Control module links to each other with the charging port group with described electric energy conversion module, is used to handle described power consumption equipment information and produces control signal and carry out corresponding action and manage described charging port group according to described control signal.
Preferably, described electric energy conversion module comprises multi winding transformer at least, and being used for energy conversion is the power consumption equipment required voltage.
Preferably, described power consumption equipment information comprises the selection of the selection of selection, the charging modes of charged level, charging interval, charge volume, way of paying, charging inlet, whether emergency processing, electric energy and electricity price option.
Preferably, described control module comprises at least: processing unit is used to handle power consumption equipment information and produces control signal and calculate the electricity charge; The performance element that links to each other with processing unit, the control signal that is used for producing according to described processing unit is carried out corresponding action.
Preferably, described performance element is a switches set, and described switches set comprises at least: first switches set is used to control electric energy and powers to the charging port group; And the second switch group, be used to control the charging port group and charge to power consumption equipment.
Preferably, described electric energy comprises the electric energy that distributed energy provides.
Preferably, described charging port group comprises bipod charging port or triangle charging port at least, and connects electric energy and power consumption equipment.
Preferably, described charging station system also comprises control panel, and described control panel links to each other with described control module, is used to realize man-machine interaction.
Preferably, described control panel comprises electric energy output select unit, charging interval selected cell, supply of electrical energy source selected cell and charging mode selected cell.
Preferably, described charging station system also comprises communication module, and described communication module links to each other with control module, is used to transmit power consumption equipment information and control information.
Preferably, described charging station system also comprises the control backstage, and described control backstage links to each other with communication module, is used to handle power consumption equipment information and sends control information.
The present invention also provides a kind of charging station management method, comprises the steps: step S1, and the charging port group is provided, and is used to provide charging inlet; Step S2 provides the control module that links to each other with described charging port group, and described control module produces control signal corresponding according to the power consumption equipment information that receives and carries out corresponding action and manage described charging port group according to described control signal; Step S3 provides the electric energy conversion module that links to each other with described control module, and described electric energy conversion module is the electric energy that meets the power consumption equipment demand with energy conversion, electric energy is outputed to described charging port group again.
Preferably, described power consumption equipment information comprises the selection of the selection of selection, the charging modes of charged level, charging interval, charge volume, way of paying, charging inlet, whether emergency processing, electric energy and electricity price option.
Preferably, the control module that provides among the step S2 comprises provides processing unit and the performance element that links to each other with processing unit, described processing unit is used to handle power consumption equipment information and produces control signal and calculate the electricity charge, and the control signal that described performance element is used for producing according to described processing unit is carried out corresponding action.
Preferably, the described performance element that provides is a switches set, and described switches set comprises at least: first switches set is used to control electric energy and powers to the charging port group; And the second switch group, be used to control the charging port group and charge to power consumption equipment.
Preferably, described method also comprises provides a control panel, and described control panel links to each other with described control module, is used to realize man-machine interaction.
Preferably, described control panel comprises electric energy output select unit, charging interval selected cell, supply of electrical energy source selected cell and charging mode selected cell.
Preferably, described method also comprises provides a communication module, and described communication module links to each other with control module, is used to transmit power consumption equipment information and control information.
Preferably, described method also comprises provides a control backstage, and described control backstage links to each other with communication module, is used to handle power consumption equipment information and sends control information.
Because adopt above-mentioned technical scheme, beneficial effect of the present invention is as follows:
Charging station of the present invention provides charging service easily for different power consumption equipments, can carry out reasonable disposition to the distribution of the charged state and the charging energy simultaneously;
Multi winding transformer can be changed to the power consumption equipment required voltage to the electric energy dress according to the need for electricity of different power consumption equipments, for different power consumption equipments becomes possibility in the charging station charging;
Abundant power consumption equipment information provides multiple choices for power consumption equipment, and service in all directions makes charging station hommization more;
Electricity consumption port set compatibility the charging end interface of distinct device, for example bipod charging port or triangle charging port, make power consumption equipment in time, charging easily;
The control panel of multiple choices is provided, makes things convenient for power consumption equipment to select function corresponding as required, complete charge fast and efficiently by payment option simultaneously;
The control backstage directly manages all switches set, charging port group by the command signal that communication module sends, and the situations such as electric leakage, power stealing or fire that prevent take place;
The protective effect of two-stage switch and various electric power safety devices by switches set, use electric energy that can be correct, and prevent that switches set from producing electric arc in conversion; Be used for realize solving generation electric energy instability when electric energy switches, perhaps problem such as potential safety hazard.
[description of drawings]
For further understanding feature of the present invention and technology contents, see also following relevant accompanying drawing of the present invention, yet institute's accompanying drawing only provides reference and explanation usefulness, is not to be used for the present invention is limited.
Fig. 1 is a charging station management system theory diagram of the present invention;
Fig. 2 is the schematic diagram of charging station terminal panel of the present invention;
Fig. 3 is the schematic diagram of charging station of the present invention;
Fig. 4 is the flow chart of charging station management method of the present invention.
[embodiment]
Below in conjunction with accompanying drawing,, will make technical scheme of the present invention and other beneficial effects apparent by the specific embodiment of the present invention is described in detail.
The present invention is the charging station that charging is provided for power consumption equipment, satisfies the requirement of different power consumption equipments to different electric energy, utilizes electric energy fully.
Referring to Fig. 1 to Fig. 3, charging station management system of the present invention comprises at least: electric energy conversion module, control module and charging port group;
Power module is converted to the high voltage electric energy of distributed energy or big electrical network standard class voltage and the output that is fit to multiple power consumption equipment electric energy needs; The high voltage electric energy conversion of distributed energy or big electrical network is the conversion of carrying out the respective standard voltage gradation by multi winding transformer, and the corresponding standard grade can require according to the electric energy of power consumption equipment to divide; For example, power consumption equipment can be according to divisions such as electric motor car, storage battery or mobile communication equipments, and the electric energy of respective standard grade is the voltage transitions of high-tension electricity 110KV or 50KV 380V, 220V or 15V etc. then; Electric energy after the conversion is output as the power transmission line of many group various criterion voltage gradations, and is connected to the output loop transmission of electricity line end in power station, by the supply of control module control electric energy;
Above-mentioned distributed energy can use clean fuels such as natural gas, coal bed gas, also can utilize waste resources such as biogas, coke-stove gas, even utilizes regenerative resources such as wind energy, solar energy, water energy; The distributed energy principal character mainly contains the following aspects: high efficiency, distributed energy can heat, freeze with the waste heat of generating back working medium, therefore the energy is able to rational cascade utilization, can requiredly come to grid power transmission and purchase electricity according to own, thereby can improve utilization efficiency of energy (can reach 60%～90%); The feature of environmental protection adopts natural gas to do fuel or is the energy with hydrogen, solar energy, wind energy, can reduce the total emission volumn of nuisance, alleviates the pressure of environmental protection; A large amount of power supplies has nearby reduced the construction of the remote high-tension transmission line of big capacity, has reduced the electromagnetic pollution of high voltage transmission line thus, has also reduced the circuit corridor and the corresponding land area of high voltage transmission line, has reduced the felling to trees under the circuit; The diversity of using energy source, because distributed energy can utilize various energy resources, as clear energy sources (natural gas), new forms of energy (hydrogen) and regenerative resource (biomass energy, wind energy and solar energy etc.), and simultaneously for the user provides various energy resources application mode such as electric, hot, cold, therefore be energy savings, solve a kind of good approach of energy shortage, energy crisis and energy security problem; The peak regulation effect, summer and winter be the peak time of electric load often, this moment as employing are hot, cold, the electric combined supply systems such as gas turbine of fuel with the natural gas, not only can solve the heat supply in summer in winter and the needs of cooling, a part of electric power also is provided simultaneously, can reduce the electric power peak load thus, play the effect of power peak regulation; Fail safe and reliability, when large area blackout appearred in big electrical network, the distributed generation system with particular design still can keep normal operation.
Control module comprises processing unit and performance element; Control module is controlled the supply of charging station electric energy, and the switching motion of corresponding rechargeable electrical energy standard class is provided for power consumption equipment; Processing unit receives control signal or other control signal that power consumption equipment produces, and processing unit sends control signal corresponding in performance element according to control signal, and performance element is finished corresponding switch transition action according to control signal; The power consumption information of power consumption equipment is by passing to processing unit with the signal of telecommunication, and calculates the electricity charge; This processing unit can be little process chip, exclusive control chip or general-purpose chip, and above-mentioned other control signal can be by the control signal of the control backstage transmission of next introducing or the control signal that control panel sent;
Above-mentioned performance element is a switches set, and this switches set comprises first switches set and second switch group at least, and electric energy transmitting is by the different voltage standard grades of the electric energy dress die change piece many groups of step-down output, successively by first switches set and second switch group; The control signal that processing unit sends makes the switches set control electric energy of winning to the power supply of charging port group respectively, and second switch group control charging port group is charged to power consumption equipment; Simultaneously be provided with various electric power safety devices, for example overcurrent protective device, overload protective device, relay and fuse etc. in first switches set and second switch group place; The protective effect of two-stage switch and above-mentioned electric power safety device by switches set, use electric energy that can be correct, and prevent that switches set from producing electric arc in conversion; Solve simultaneously and when electric energy switches, produce problems such as electric energy instability or potential safety hazard.
The charging port group comprises the charging port of multiple interfaces, and for example bipod charging port or triangle charging port etc. select suitable charging port to charge according to the connectivity port of power consumption equipment, make things convenient for the power consumption equipment charging.
Above-mentioned charging station also comprises control panel, communication module and control backstage;
Control panel, it provides electric energy output select unit, charging interval selected cell, supply of electrical energy source selected cell and charging mode selected cell for power consumption equipment; At least also comprise the selection of different options such as selection, electric energy and electricity price of selection, the charging modes of charging interval, charged level, charge volume, way of paying, charging inlet in above-mentioned each unit; Control panel is sent to processing unit in the control module to the power consumption equipment control signal that information produces in the above-mentioned Total Options, and performance element is carried out corresponding action according to the control signal that processing unit produced then;
Above-mentioned electric energy option provides the selection of different distributed energy for power consumption equipment, the electricity price option selects to provide different charging prices according to different distributed energies, the charging interval option is selected the charging interval according to the demand of power consumption equipment, the option of charge volume provides corresponding electric energy according to the demand of power consumption equipment, the electric energy standard class that the charged level option requires to provide different according to the electric energy of power consumption equipment (380V for example, 220V or 15V etc.), the way of paying option is according to adopting traditional plug-in card to pay or being sent to the control backstage by the paying signal that forms such as mobile payment are paid by communication module, the option of the selection of charging inlet is selected according to the difference of power consumption equipment connectivity port, the option of the selection of charging modes is directly charging or alternate manner charging according to the requirement of power consumption equipment, whether the option of emergency processing according to power consumption equipment whether needs obtain electric energy in the extremely short time and emergent charging is provided or stops in advance powering to power supply unit;
The control signal that communication module is produced the received power consumption equipment information of control module is transferred to the control backstage timely, and the power consumption information of the power consumption equipment that control module obtained is transferred to the control backstage by communication module, and perhaps the control signal that the control backstage is sent is transferred to control module;
The control backstage transmits control signal to control module, monitors the electric energy consumption and the control switch group of charging port group, statistics power consumption equipment simultaneously, perhaps handles receiving the signal that control module sends; The control backstage cooperates control panel that power consumption equipment is powered, control panel is by the distribution of control module control second switch group to power consumption equipment, this control module sends corresponding signal in the control backstage by communication module simultaneously, and this control backstage receives corresponding signal then to the control module return control signal and control the distribution of first switches set to the charging port group; The control backstage is connected with fare payment systems such as financial sector such as banks, control panel is handled through the paying signal that communication module sent by control module, and corresponding button goes power consumption equipment user's charging expense; When the control backstage in the power station emergency case takes place, can manage all switches set, charging port group, the situations such as electric leakage, power stealing or fire that prevent take place.
Above-mentioned charging station management system can comprise that a plurality of charging ports are arranged on the power supply loop, provide electric energy for a plurality of different power consumption equipments simultaneously; Charging station uses distributed new, and compatible multiple different power consumption equipment improves the utilization rate of electric energy, for power consumption equipment provides in time, reliably and the electric energy of high-quality; Use electric energy to help to improve environment simultaneously.
Referring to Fig. 4, the flow chart of charging station management method of the present invention comprises the steps:
At first, step S1 provides the charging port group, is used to provide charging inlet;
Step S2 provides the control module that links to each other with described charging port group, and described control module produces control signal corresponding according to the power consumption equipment information that receives and carries out corresponding action and manage described charging port group according to described control signal;
This control module comprises provides processing unit and the performance element that links to each other with processing unit, this processing unit is used to handle power consumption equipment information and produces control signal and calculate the electricity charge, and the control signal that this performance element is used for producing according to described processing unit is carried out corresponding action;
This power consumption equipment information comprises the selection of the selection of selection, the charging modes of charged level, charging interval, charge volume, way of paying, charging inlet, whether emergency processing, electric energy and electricity price option;
This performance element is a switches set, and described switches set comprises at least:
First switches set is used to control electric energy and powers to the charging port group; And
The second switch group is used to control the charging port group and charges to power consumption equipment;
Step S3 provides the electric energy conversion module that links to each other with described control module, and described electric energy conversion module is the electric energy that meets the power consumption equipment demand with energy conversion, electric energy is outputed to described charging port group again.
Step S3 also comprises:
S31 a: multi winding transformer is provided, the high voltage electric energy of distributed energy or big electrical network is converted to the standard class voltage and the output of suitable multiple power consumption equipment electric energy needs; Power consumption equipment can be according to divisions such as electric motor car, storage battery or mobile communication equipments, and the electric energy of respective standard grade is the voltage transitions of high-tension electricity 110KV or 50KV 380V, 220V or 15V etc. then;
S32: electric energy is output as the power transmission line of many group various criterion voltage gradations, and is connected to the output loop transmission of electricity line end in power station.
Said method also comprises:
One control panel is provided, and described control panel links to each other with described control module, is used to realize man-machine interaction; This control panel comprises electric energy output select unit, charging interval selected cell, supply of electrical energy source selected cell and charging mode selected cell.
Said method also comprises:
One communication module is provided, and described communication module links to each other with control module, is used to transmit power consumption equipment information and control information;
The control signal that this communication module is produced the received power consumption equipment information of control module is transferred to the control backstage timely, and the power consumption information of the power consumption equipment that control module obtained is transferred to the control backstage by communication module, and perhaps the control signal that the control backstage is sent is transferred to control module;
Said method also comprises:
One control backstage is provided, and described control backstage links to each other with communication module, is used to handle power consumption equipment information and sends control information;
This control background process receives the signal of the power consumption equipment that control module sends, and controls backstage transmit control signal monitoring charging port group, statistics electric energy consumption and control switch group simultaneously;
This control background process receives the paying signal that control panel sends by communication module, and the control backstage is connected the charging expense that also corresponding button goes the power consumption equipment user with fare payment systems such as financial sector such as banks.
The above embodiment has only expressed embodiments of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to claim of the present invention.Should be pointed out that for the person of ordinary skill of the art without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection range of patent of the present invention should be as the criterion with claims.
Claims (19)
1. a charging station management system is characterized in that, comprises at least:
Electric energy conversion module, being used for energy conversion is the electric energy that meets the power consumption equipment demand;
The charging port group links to each other with described electric energy conversion module, is used to provide charging inlet;
Control module links to each other with the charging port group with described electric energy conversion module, is used to handle described power consumption equipment information and produces control signal and carry out corresponding action and manage described charging port group according to described control signal.
2. charging station management system according to claim 1 is characterized in that described electric energy conversion module comprises multi winding transformer at least, and being used for energy conversion is the power consumption equipment required voltage.
3. charging station management system according to claim 1, it is characterized in that described power consumption equipment information comprises the selection of the selection of selection, the charging modes of charged level, charging interval, charge volume, way of paying, charging inlet, whether emergency processing, electric energy and electricity price option.
4. according to each described charging station management system in the claim 1 to 3, it is characterized in that described control module comprises at least:
Processing unit is used to handle power consumption equipment information and produces control signal and calculate the electricity charge;
The performance element that links to each other with processing unit, the control signal that is used for producing according to described processing unit is carried out corresponding action.
5. charging station management system according to claim 4 is characterized in that, described performance element is a switches set, and described switches set comprises at least:
First switches set is used to control electric energy and powers to the charging port group; And
The second switch group is used to control the charging port group and charges to power consumption equipment.
6. charging station management system according to claim 1 is characterized in that described electric energy comprises the electric energy that distributed energy provides.
7. charging station management system according to claim 1 is characterized in that, described charging port group comprises bipod charging port or triangle charging port at least, and connects electric energy and power consumption equipment.
8. charging station management system according to claim 4 is characterized in that, described charging station system also comprises control panel, and described control panel links to each other with described control module, is used to realize man-machine interaction.
9. charging station management system according to claim 8 is characterized in that, described control panel comprises electric energy output select unit, charging interval selected cell, supply of electrical energy source selected cell and charging mode selected cell.
10. charging station management system according to claim 4 is characterized in that, described charging station system also comprises communication module, and described communication module links to each other with control module, is used to transmit power consumption equipment information and control information.
11. charging station management system according to claim 10 is characterized in that, described charging station system also comprises the control backstage, and described control backstage links to each other with communication module, is used to handle power consumption equipment information and sends control information.
12. a charging station management method comprises the steps:
Step S1 provides the charging port group, is used to provide charging inlet;
Step S2 provides the control module that links to each other with described charging port group, and described control module produces control signal corresponding according to the power consumption equipment information that receives and carries out corresponding action and manage described charging port group according to described control signal;
Step S3 provides the electric energy conversion module that links to each other with described control module, and described electric energy conversion module is the electric energy that meets the power consumption equipment demand with energy conversion, electric energy is outputed to described charging port group again.
13. charging station management method according to claim 12, it is characterized in that described power consumption equipment information comprises the selection of the selection of selection, the charging modes of charged level, charging interval, charge volume, way of paying, charging inlet, whether emergency processing, electric energy and electricity price option.
14. charging station management method according to claim 12, it is characterized in that, the control module that provides among the step S2 comprises provides processing unit and the performance element that links to each other with processing unit, described processing unit is used to handle power consumption equipment information and produces control signal and calculate the electricity charge, and the control signal that described performance element is used for producing according to described processing unit is carried out corresponding action.
15. charging station management method according to claim 14 is characterized in that, the described performance element that provides is a switches set, and described switches set comprises at least:
First switches set is used to control electric energy and powers to the charging port group; And
The second switch group is used to control the charging port group and charges to power consumption equipment.
16. charging station management method according to claim 12 is characterized in that, described method also comprises provides a control panel, and described control panel links to each other with described control module, is used to realize man-machine interaction.
17. charging station management method according to claim 16 is characterized in that, described control panel comprises electric energy output select unit, charging interval selected cell, supply of electrical energy source selected cell and charging mode selected cell.
18. charging station management method according to claim 12 is characterized in that, described method also comprises provides a communication module, and described communication module links to each other with control module, is used to transmit power consumption equipment information and control information.
19. charging station management method according to claim 18 is characterized in that, described method also comprises provides a control backstage, and described control backstage links to each other with communication module, is used to handle power consumption equipment information and sends control information.
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| CN200910239648.3A CN102118042B (en) | 2009-12-31 | 2009-12-31 | Charging station management system and method |
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| CN200910239648.3A CN102118042B (en) | 2009-12-31 | 2009-12-31 | Charging station management system and method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI496379B (en) * | 2013-07-26 | 2015-08-11 | Univ Nat Sun Yat Sen | Energy management method for charging station |
| CN108565945A (en) * | 2018-01-24 | 2018-09-21 | 上海电机学院 | A kind of parking area charging system for electric automobile based on photovoltaic generation |
| CN111522234A (en) * | 2020-05-12 | 2020-08-11 | 深圳市汇智通咨询有限公司 | Automatic control system and method based on self-adaptive strategy |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200986724Y (en) * | 2006-12-05 | 2007-12-05 | 张朝辉 | Electric bicycle charging station for public place |
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2009
- 2009-12-31 CN CN200910239648.3A patent/CN102118042B/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI496379B (en) * | 2013-07-26 | 2015-08-11 | Univ Nat Sun Yat Sen | Energy management method for charging station |
| CN108565945A (en) * | 2018-01-24 | 2018-09-21 | 上海电机学院 | A kind of parking area charging system for electric automobile based on photovoltaic generation |
| CN111522234A (en) * | 2020-05-12 | 2020-08-11 | 深圳市汇智通咨询有限公司 | Automatic control system and method based on self-adaptive strategy |
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| CN102118042B (en) | 2014-12-24 |
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Effective date of registration: 20200915 Address after: 215500 No.13, Caotang Road, Changshu, Suzhou, Jiangsu Province Patentee after: Changshu intellectual property operation center Co.,Ltd. Address before: 1068 No. 518055 Guangdong city in Shenzhen Province, Nanshan District City Xili Road School of Shenzhen University Patentee before: SHENZHEN INSTITUTES OF ADVANCED TECHNOLOGY |
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Correction item: Patentee|Address Correct: SHENZHEN INSTITUTES OF ADVANCED TECHNOLOGY|518055 No. 1068, Xueyuan Avenue, Shenzhen University Town, Xili, Nanshan District, Shenzhen, Guangdong Province False: Changshu intellectual property operation center Co.,Ltd.|215500 No.13, caodang Road, Changshu City, Suzhou City, Jiangsu Province Number: 40-02 Volume: 36 |
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Effective date of registration: 20230313 Address after: 519085 101, Building 5, Longyuan Smart Industrial Park, No. 2, Hagongda Road, Tangjiawan Town, High-tech Zone, Zhuhai City, Guangdong Province Patentee after: ZHUHAI INSTITUTE OF ADVANCED TECHNOLOGY CHINESE ACADEMY OF SCIENCES Co.,Ltd. Address before: 1068 No. 518055 Guangdong city in Shenzhen Province, Nanshan District City Xili Road School of Shenzhen University Patentee before: SHENZHEN INSTITUTES OF ADVANCED TECHNOLOGY |
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