CN105006870B - Charging pile intelligent power mixing system and method - Google Patents
Charging pile intelligent power mixing system and method Download PDFInfo
- Publication number
- CN105006870B CN105006870B CN201510513775.3A CN201510513775A CN105006870B CN 105006870 B CN105006870 B CN 105006870B CN 201510513775 A CN201510513775 A CN 201510513775A CN 105006870 B CN105006870 B CN 105006870B
- Authority
- CN
- China
- Prior art keywords
- charging pile
- charging
- controller
- steps
- extension set
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000000034 method Methods 0.000 title claims description 15
- 238000004891 communication Methods 0.000 claims abstract description 4
- 238000012544 monitoring process Methods 0.000 claims description 6
- 230000005611 electricity Effects 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 claims description 2
- 238000000151 deposition Methods 0.000 claims 1
- 238000012806 monitoring device Methods 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 6
- 230000009466 transformation Effects 0.000 abstract description 2
- 241000196324 Embryophyta Species 0.000 description 1
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- GOLXNESZZPUPJE-UHFFFAOYSA-N spiromesifen Chemical compound CC1=CC(C)=CC(C)=C1C(C(O1)=O)=C(OC(=O)CC(C)(C)C)C11CCCC1 GOLXNESZZPUPJE-UHFFFAOYSA-N 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention belongs to electric control appliances, and more particularly to transformer load caused by more charging piles is controlled.Its technical solution is：A kind of charging pile intelligent power mixing system, including：Controller host (1), the multiple controller extension sets (2) being arranged at each charging pile (5) connect the communication bus (3) of the controller host (1) and the controller extension set (2).Charging piles all in cell can be controlled in real time using the present invention, be staggered peak of power consumption, construction investment can be reduced for new residential area and enterprises and institutions, reduce transformer noload losses, for needing the built cell of increase charging pile, electric system transformation difficulty and cost can be also substantially reduced.
Description
Technical field
The invention belongs to electric control appliances, and more particularly to transformer load caused by more charging piles is controlled.
Background technology
With popularizing for electric vehicle, the demand of residential quarters, enterprises and institutions, large parking lot to charging pile increasingly increases
Add.But charging pile is increased significantly in the current situation and faces many problems.It is small for what is built up by taking residential quarters as an example
Area, when construction, do not consider this sub-load of charging pile, and increasing significantly charging pile can cause transformer even super negative at full capacity
The problems such as lotus works, and initiation breaker actuation, power quality decline, transformer life reduces.Therefore, many cells forbid owner
Charging pile is voluntarily installed.For newly-built community, when Construction Party requires design side's consideration charging pile load, also one can be brought to design
Determine difficulty.The power of separate unit charging pile is suitable with single household electricity consumption peak value generally in more than 5kW, after setting a large amount of charging piles
It needs to carry out increase-volume to transformer, increases construction investment, and charging pile load has very strong kurtosis, the work hours make
It is very low with rate, which results in the waste of transformer capacity, and increase the time of transformer low-load rate operation, be unfavorable for energy saving drop
Consumption.
The use habit of most of automobile users is that charging wire is inserted into charging pile after coming off duty, as long as charging pile is protected
Charging finishes before card user goes to work in next day, not high to the requirement of real-time of charging, has the characteristics that the use that can avoid the peak hour.
Invention content
The purpose of the present invention is：A kind of charging pile intelligent power mixing system is provided, it is real by monitoring transformer load rate
When switching controls are carried out to all charging piles in cell, be staggered peak of power consumption, reduces transformer construction or increase-volume investment.
The technical scheme is that：A kind of charging pile intelligent power mixing system, it includes：Controller host, setting
Multiple controller extension sets at each charging pile connect the communication bus of the controller host and the controller extension set；
The controller host reads transformer load rate in real time, judges the transformer residue available power, decision can
With the quantity of charging pile, and send out charging to the controller extension set or stop charging instruction；
The automobile access sensor of charging pile and electric vehicle Current Voltage sensor where the controller extension set monitoring；
When charging pile where having electric vehicle to be connected to, charge request is sent to the controller host；In charging process, to institute
Charging pile where controller host is sent is stated with status information；Charging is sent after charging complete to the controller host to finish
Information；Charging or the stopping charging instruction that the controller host is sent are performed, control place charging pile fills electric vehicle
Electricity.
A kind of charging pile intelligent power concocting method, it uses charging pile intelligent power mixing system as described above, and
Include the following steps：
A. the controller host performs following operate：
A1. voltage, the current information of the transformer sensor are received, calculates the transformer load rate；
A2. judge the load factor whether less than preset lower threshold；It is to turn A3 steps, otherwise turns A5 steps；
A3. determine whether the controller extension set and send charge request；Have, turn A4 steps, nothing then turns A1 steps；
A4. charging instruction is sent out to one that the sends charge request controller extension set；Then turn A1 steps；
A5. judge the load factor whether higher than preset upper limit threshold；It is to turn A6 steps, otherwise turns A1 steps；
A6. place charging pile that the controller extension set sends is judged whether there is with status information；It is to turn A7 steps,
Otherwise turn A1 steps；
A7. to one stopping charging instruction being sent out with the controller extension set of charging pile；Then turn A1 steps；
B. the controller extension set performs following operate：
B1. the automobile access sensor of charging pile where monitoring, when there is electric vehicle connection to need charging；
B2. charge request is sent out to the controller host；
B3. the controller host is waited for send out charging instruction；
B4. after receiving charging instruction, charging pile where control enters charged state, and is sent out to the controller host
Charging pile where sending is with status information；
B5. it monitors the controller host and sends out stopping charging instruction；Without B6 steps are then turned, have, turn B7 steps；
B6. electric vehicle Current Voltage sensor is monitored, charging pile stops charging where control after charging, to institute
It states controller host and sends out charging and finish signal, turn B1 steps；
B7. charging pile where control stops charging, turns B2 steps.
Charging piles all in cell can be controlled in real time using the present invention, be staggered peak of power consumption, for creating
Residence cell and enterprises and institutions can reduce construction investment, reduce transformer noload losses, for needing to have increased charging pile
Cell is built, can also substantially reduce electric system transformation difficulty and cost.
Description of the drawings
Attached drawing 1 is the embodiment of the present invention 1, the charging pile intelligent power mixing system structure chart of embodiment 2；
Attached drawing 2 is controller host service function flow chart in 3 charging pile intelligent power concocting method of the embodiment of the present invention；
Attached drawing 3 is controller split plant operation flow chart in 3 charging pile intelligent power concocting method of the embodiment of the present invention.
Specific embodiment
Embodiment 1：Referring to attached drawing 1, a kind of charging pile intelligent power mixing system, it is characterized in that：It includes：Controller master
Machine 1, the multiple controller extension sets 2 being arranged at each charging pile 5 connect the controller host 1 and the controller extension set 2
Communication bus 3；
The controller host 1 reads 4 load factor of transformer in real time, judges the remaining available power of the transformer 4, determines
The quantity of charging pile 5 can be used, and sends out charging to the controller extension set 2 or stops charging instruction；
The automobile access sensor of charging pile 5 and electric vehicle Current Voltage sensing where the monitoring of controller extension set 2
Device；When charging pile 5 where having electric vehicle to be connected to, charge request is sent to the controller host 1；In charging process
In, charging pile 5 is with status information where being sent to the controller host 1；It is sent out after charging complete to the controller host 1
Charging is sent to finish information；Charging or the stopping charging instruction that the controller host 1 is sent are performed, control place charging pile 5 is right
The charging of electric vehicle.
Embodiment 2：Referring to attached drawing 1, charging pile intelligent power mixing system as described in Example 1, it is characterized in that：It is described
Controller host 1 has 4 load factor of transformer described in the interface that is communicated with host computer and real-time display, with charging pile number
Amount, the display for waiting for charging pile quantity information.
Embodiment 3：Referring to attached drawing 2,3, a kind of charging pile intelligent power concocting method, it is using as described in embodiment 1 or 2
Charging pile intelligent power mixing system, and include the following steps：
A. the controller host 1 performs following operation：
A1. voltage, the current information of 4 sensor of transformer are received, calculates 4 load factor of transformer；
A2. judge the load factor whether less than preset lower threshold；It is to turn A3 steps, otherwise turns A5 steps；
A3. determine whether the controller extension set 2 and send charge request；Have, turn A4 steps, nothing then turns A1 steps；
A4. charging instruction is sent out to one that the sends charge request controller extension set 2；Then turn A1 steps；
A5. judge the load factor whether higher than preset upper limit threshold；It is to turn A6 steps, otherwise turns A1 steps；
A6. place charging pile 5 that the controller extension set 2 sends is judged whether there is with status information；It is to turn A7 steps
Suddenly, otherwise turn A1 steps；
A7. to one stopping charging instruction being sent out with the controller extension set 2 of charging pile 5；Then turn A1 steps；
B. the controller extension set 2 performs following operation：
B1. the automobile access sensor of charging pile 5 where monitoring, when there is electric vehicle connection to need charging；
B2. charge request is sent out to the controller host 1；
B3. the controller host 1 is waited for send out charging instruction；
B4. after receiving charging instruction, charging pile 5 where control enters charged state, and to the controller host 1
Charging pile 5 is with status information where sending；
B5. it monitors the controller host 1 and sends out stopping charging instruction；Without B6 steps are then turned, have, turn B7 steps；
B6. electric vehicle Current Voltage sensor is monitored, charging pile 5 stops charging where control after charging, to
The controller host 1 sends out charging and finishes signal, turns B1 steps；
B7. charging pile 5 where control stops charging, turns B2 steps.
Embodiment 4：Charging pile intelligent power concocting method as described in Example 3, it is characterized in that：The lower threshold is
The 82% of transformer nominal load, the upper limit threshold are the 88% of transformer nominal load.
Embodiment 5：Charging pile intelligent power concocting method as described in Example 3, it is characterized in that：In the controller master
Two sequences are established in 1 memory of machine：A sequences are in the charging pile code with state；B sequences for etc. charging pile to be charged
Code；
It, will be where the controller extension set 2 after the controller host 1, which receives certain controller extension set 2, sends charge request
Charging pile code is added to the b sequences；
Place charging pile 5 is sent after with status information when the controller host 1 receives certain controller extension set 2, it will
The 2 place charging pile code of controller extension set is moved into a sequences；
After the charging that the controller host 1 receives the transmission of certain controller extension set 2 finishes signal, by the controller point
2 place charging pile code of machine is deleted from a sequences；
When the controller host 1 into a sequences certain sending out stopping charging instruction with the controller extension set 2 of charging pile,
And after receiving the request charging signals that the controller extension set 2 is sent out, which is moved into b sequences by a sequences；
When detecting " user has disconnected " information that certain controller extension set 2 is sent, no matter where this certain controller extension set 2
Which sequence the code of charging pile is in, and is all deleted.
Embodiment 6：Charging pile intelligent power concocting method as described in Example 5, it is characterized in that：All steps can be by
To manual intervention, administrator is allowed manually to open, close the charging pile specified, a sequences and b sequences are operated manually, if
Put the lower threshold and the upper limit threshold, open several without waiting for high permission charging pile, with facilitate need it is urgent
The automobile user of charging.
Claims (6)
1. a kind of charging pile intelligent power mixing system, it is characterized in that：It includes：Controller host (1), is arranged on each charging pile
(5) multiple controller extension sets (2) at connect the communication bus of the controller host (1) and the controller extension set (2)
(3)；
The controller host (1) reads transformer (4) load factor in real time, judges the remaining available power of the transformer (4), certainly
The quantity with charging pile (5) is scheduled on, and sends out charging to the controller extension set (2) or stops charging instruction；
The automobile access sensor of charging pile (5) and electric vehicle Current Voltage sensing where controller extension set (2) monitoring
Device；When charging pile (5) where having electric vehicle to be connected to, charge request is sent to the controller host (1)；It was charging
Cheng Zhong, charging pile (5) is with status information where being sent to the controller host (1)；To the controller after charging complete
Host (1) sends charging and finishes information；Charging or the stopping charging instruction that the controller host (1) is sent are performed, controls institute
In charging of the charging pile (5) to electric vehicle.
2. charging pile intelligent power mixing system according to claim 1, it is characterized in that：Controller host (1) tool
Have transformer (4) load factor described in the interface communicated with host computer and real-time display, with charging pile quantity, etc. it is to be charged
The display of stake quantity information.
3. a kind of charging pile intelligent power concocting method, it is allocated using charging pile intelligent power as claimed in claim 1 or 2
System, and include the following steps：
A. the controller host (1) performs following operate：
A1. voltage, the current information of the transformer (4) sensor are received, calculates the transformer (4) load factor；
A2. judge the load factor whether less than preset lower threshold；It is to turn A3 steps, otherwise turns A5 steps；
A3. determine whether the controller extension set (2) and send charge request；Have, turn A4 steps, nothing then turns A1 steps；
A4. charging instruction is sent out to one that the sends charge request controller extension set (2)；Then turn A1 steps；
A5. judge the load factor whether higher than preset upper limit threshold；It is to turn A6 steps, otherwise turns A1 steps；
A6. place charging pile (5) that the controller extension set (2) sends is judged whether there is with status information；It is to turn A7 steps
Suddenly, otherwise turn A1 steps；
A7. to one stopping charging instruction being sent out with the controller extension set (2) of charging pile (5)；Then turn A1 steps；
B. the controller extension set (2) performs following operate：
B1. the automobile access sensor of charging pile (5) where monitoring, when there is electric vehicle connection to need charging；
B2. charge request is sent out to the controller host (1)；
B3. the controller host (1) is waited for send out charging instruction；
B4. after receiving charging instruction, charging pile (5) enters charged state where control, and to the controller host (1)
Charging pile (5) is with status information where sending；
B5. it monitors the controller host (1) and sends out stopping charging instruction；Without B6 steps are then turned, have, turn B7 steps；
B6. electric vehicle Current Voltage sensor is monitored, charging pile (5) stops charging where control after charging, to institute
It states controller host (1) and sends out charging and finish signal, turn B1 steps；
B7. charging pile (5) stops charging where control, turns B2 steps.
4. charging pile intelligent power concocting method as claimed in claim 3, it is characterized in that：The lower threshold is transformer volume
The 82% of fixed load, the upper limit threshold are the 88% of transformer nominal load.
5. charging pile intelligent power concocting method as claimed in claim 3, it is characterized in that：In the controller host (1)
Two sequences are established in depositing：A sequences are in the charging pile code with state；B sequences for etc. charging pile code to be charged；
After the controller host (1), which receives certain controller extension set (2), sends charge request, by controller extension set (2) institute
It is added to the b sequences in charging pile code；
Place charging pile (5) is sent after with status information when the controller host (1) receives certain controller extension set (2),
Charging pile code where the controller extension set (2) is moved into a sequences；
After the charging that the controller host (1) receives the transmission of certain controller extension set (2) finishes signal, by the controller point
Charging pile code where machine (2) is deleted from a sequences；
When the controller host (1) into a sequences certain sending out stopping charging instruction with the controller extension set (2) of charging pile,
And after receiving the request charging signals that the controller extension set (2) is sent out, which is moved into b sequences by a sequences；
When detecting " user has disconnected " information that certain controller extension set (2) is sent, no matter where certain controller extension set (2)
Which sequence the code of charging pile is in, and is all deleted.
6. charging pile intelligent power concocting method as claimed in claim 5, it is characterized in that：All steps can manually be done
In advance, administrator is allowed manually to open, close the charging pile specified, a sequences and b sequences is operated manually, under setting is described
Limit threshold value and the upper limit threshold, open several without waiting for high permission charging pile, to facilitate the electricity for needing promptly to charge
Electrical automobile user.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510513775.3A CN105006870B (en) | 2015-08-21 | 2015-08-21 | Charging pile intelligent power mixing system and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510513775.3A CN105006870B (en) | 2015-08-21 | 2015-08-21 | Charging pile intelligent power mixing system and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105006870A CN105006870A (en) | 2015-10-28 |
| CN105006870B true CN105006870B (en) | 2018-06-12 |
Family
ID=54379432
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510513775.3A Active CN105006870B (en) | 2015-08-21 | 2015-08-21 | Charging pile intelligent power mixing system and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105006870B (en) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105703427A (en) * | 2016-03-03 | 2016-06-22 | 北京新能源汽车股份有限公司 | Electric capacity distribution system for charging pile and its control method |
| CN106067219B (en) * | 2016-08-05 | 2018-12-25 | 国网重庆市电力公司电力科学研究院 | A kind of the centralized management control system and method for charging pile |
| CN106208044B (en) * | 2016-08-05 | 2018-12-04 | 海南电网有限责任公司电力科学研究院 | Charging pile and distribution transformer coordinated operation method and apparatus |
| CN107346908B (en) * | 2017-01-05 | 2020-01-24 | 宁波三星智能电气有限公司 | Charging pile for intelligently allocating power and control method thereof |
| CN108215820B (en) * | 2017-04-28 | 2023-10-27 | 国家电网公司 | An electric vehicle charging control system and method based on Taiwan area power consumption information |
| CN107351711A (en) * | 2017-07-17 | 2017-11-17 | 万帮充电设备有限公司 | Charging pile power operation method and device |
| CN107394858B (en) * | 2017-08-31 | 2023-09-08 | 国家电网公司 | The central controller of the station area controls the charging pile based on the load information of the transformer station area. |
| CN108631310A (en) * | 2018-05-28 | 2018-10-09 | 天津平高智能电气有限公司 | A kind of orderly charging management method in residential area, apparatus and system |
| CN108923479B (en) * | 2018-06-26 | 2021-10-15 | 蔚来(安徽)控股有限公司 | Power distribution system, capacity sharing system, server, terminal, method and device |
| CN109228952A (en) * | 2018-10-30 | 2019-01-18 | 四川洪诚电气科技有限公司 | A kind of charging pile charging system and method based on power intelligent allotment |
| CN114301100B (en) * | 2022-01-13 | 2024-06-04 | 华南理工大学 | Ordered charging method, system, device and medium for charging pile considering multiple distribution and transformation joint control |
| CN115848203B (en) * | 2023-02-17 | 2023-05-30 | 南方电网产业投资集团有限责任公司 | Charging power expansion allocation method and device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102708427A (en) * | 2012-06-29 | 2012-10-03 | 山东电力集团公司电力科学研究院 | System and method for analyzing and determining influence of large-scale charging pile to community distribution system |
| CN205231767U (en) * | 2015-08-21 | 2016-05-11 | 中国人民解放军96657部队 | System is allocated to intelligent power of stake that charges |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8121618B2 (en) * | 2009-10-28 | 2012-02-21 | Digimarc Corporation | Intuitive computing methods and systems |
-
2015
- 2015-08-21 CN CN201510513775.3A patent/CN105006870B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102708427A (en) * | 2012-06-29 | 2012-10-03 | 山东电力集团公司电力科学研究院 | System and method for analyzing and determining influence of large-scale charging pile to community distribution system |
| CN205231767U (en) * | 2015-08-21 | 2016-05-11 | 中国人民解放军96657部队 | System is allocated to intelligent power of stake that charges |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105006870A (en) | 2015-10-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105006870B (en) | Charging pile intelligent power mixing system and method | |
| CN105449791A (en) | DC intelligent charging pile for electric automobiles | |
| CN106696744B (en) | Charging and heating system and heating method for power battery of electric automobile | |
| JP6306101B2 (en) | Charge / discharge system | |
| CN111284356A (en) | Mobile energy storage charging pile and control method thereof | |
| CN103746422B (en) | A kind of direct current charge-discharge control method based on interface intelligent identification technology | |
| CN104044538B (en) | Low-voltage storage battery power shortage prevention device and method thereof | |
| CN114290936B (en) | Charging control method, charging system and related equipment | |
| CN205004812U (en) | Charging pile for electric vehicle | |
| CN102055215A (en) | Control method and operation monitoring system of charging and exchanging station of electric vehicle | |
| CN106080236A (en) | Many power section parallel connection quick charging system and method | |
| CN211809139U (en) | Self-adaptive power regulation and control multi-gun alternating-current charging pile | |
| CN110103746A (en) | A kind of matrixing network formula charger system | |
| CN102593925A (en) | Power battery pack voltage transformation system and transformation method | |
| CN203984046U (en) | Electric automobile alternating current-direct current charging system and automobile group charging system | |
| CN110838737B (en) | Charge and discharge control method and charge and discharge control device of retired power battery pack | |
| CN114421555A (en) | Charging control method and system, electronic device and storage medium | |
| CN107359689A (en) | An intelligent solar charging system | |
| CN102339054A (en) | Linkage control method of distribution transformer load management and electromobile charging process | |
| CN114069775A (en) | AC/DC input energy storage charging system and control method thereof | |
| CN102122830A (en) | Charging mechanism for electric vehicles | |
| CN205945115U (en) | Many power section quick charging device that connects in parallel | |
| CN108215893A (en) | A kind of charging device of electric bicycle and application method | |
| CN205231767U (en) | System is allocated to intelligent power of stake that charges | |
| WO2017012124A1 (en) | Electric vehicle charging pile |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 100011, 18 North Delhi street, Beijing, Dongcheng District Patentee after: PLA 96911 unit Address before: 100011 18 North Street, Dongcheng District, Beijing Patentee before: People's Liberation Army 96657 troops |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240122 Address after: 415599 Huangni Neighborhood Committee, Lixi Sub district Office, Lixian County, Changde City, Hunan Province, China, No. 005 Youyou Road Patentee after: Hunan Yinxiang Technology Co.,Ltd. Country or region after: China Address before: 100011, 18 North Delhi street, Beijing, Dongcheng District Patentee before: PLA 96911 unit Country or region before: China |