CN108386965B - PLC networking method through equipment unique code pairing and identification card pairing - Google Patents
PLC networking method through equipment unique code pairing and identification card pairing Download PDFInfo
- Publication number
- CN108386965B CN108386965B CN201810191535.XA CN201810191535A CN108386965B CN 108386965 B CN108386965 B CN 108386965B CN 201810191535 A CN201810191535 A CN 201810191535A CN 108386965 B CN108386965 B CN 108386965B
- Authority
- CN
- China
- Prior art keywords
- pairing
- air conditioner
- identification card
- card
- plc
- 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
- 230000006855 networking Effects 0.000 title claims abstract description 31
- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000004378 air conditioning Methods 0.000 claims description 31
- 238000004080 punching Methods 0.000 claims description 9
- 238000012544 monitoring process Methods 0.000 claims description 3
- 238000004891 communication Methods 0.000 description 9
- 238000009434 installation Methods 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000003507 refrigerant Substances 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/56—Remote control
- F24F11/58—Remote control using Internet communication
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/54—Systems for transmission via power distribution lines
Landscapes
- Engineering & Computer Science (AREA)
- Human Computer Interaction (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses a PLC networking method through equipment unique code pairing and identification card pairing, which comprises the following steps: s1: the monitor sends the outdoor machine physical address information, the unique code of the indoor machine equipment and the network code generated by the unique code of the line controller equipment to the outdoor machine CCO; s2: the monitor broadcasts a starting password and an internal and external machine configuration counter to all the outdoor machine CCOs, and the corresponding outdoor machine CCOs acquire password information to complete the networking of the outdoor machine CCOs and the indoor machines; s3: inserting a blank identification card of the wire controller into the CCO of the outdoor unit, forming a network code on the blank identification card, and forming an indoor unit-wire controller pairing table consisting of an indoor unit equipment unique code and a wire controller equipment unique code on the blank identification card; s4: and inserting the identification card back to the wire controller, and accessing the wire controller to the PLC network to complete pairing of the indoor unit and the wire controller. The invention can realize zero intervention to complete networking of the indoor unit and the outdoor unit of the air conditioner and pairing of the indoor unit and the line controller, saves cost, is simple to install and is convenient to maintain.
Description
Technical Field
The invention relates to the technical field of PLC communication, in particular to a PLC networking method based on equipment unique code pairing and identification card pairing.
Background
The multi-split air conditioner refers to an air conditioning unit with one driving N, namely, one air conditioning outdoor unit is connected with and controls two or more air conditioning indoor units. For example: in an air conditioning unit, an air conditioning outdoor unit conveys a refrigerant (heating agent) to two or more air conditioning indoor units through a pipe, and the air conditioning outdoor unit meets the temperature regulation requirement of the air conditioning indoor units by controlling the circulation amount of the refrigerant (heating agent) and the flow rate of the refrigerant (heating agent) entering the indoor units. Each air conditioner indoor unit can control the air conditioner outdoor unit through independent parameter setting so as to meet the requirements of different rooms on temperature and humidity.
At present, the transmission mode of control signals between outdoor units and indoor units in a multi-connected air conditioner used by a multi-connected air conditioner manufacturer is mainly connected and controlled through a CAN bus or a 485 bus arranged from an air conditioner outdoor unit to each air conditioner indoor unit, but the physical connection communication mode in the prior art causes the problems of troublesome installation, high cost, inconvenience in maintenance and the like.
Disclosure of Invention
The invention aims to provide a PLC networking method through equipment unique code pairing and network identification card pairing, which is characterized in that the unique code of the air conditioner indoor unit equipment is paired with the physical address of the air conditioner outdoor unit, and the identification card is adopted to realize the networking mode of combining the pairing of the indoor unit and the wire controller, so that the networking of the air conditioner indoor unit and the air conditioner outdoor unit and the wire controller can be completed with zero intervention, and the construction cost, the material cost and the debugging cost can be saved.
In order to achieve the above object, the present invention provides a PLC networking method for pairing a device unique code and an identification card, the PLC networking method including the following steps:
s1: the monitor sends network codes generated by combining physical address information of the air conditioner outdoor unit, corresponding identity identification ID of the air conditioner indoor unit and the unique codes of the corresponding wire controller equipment to the CCO of the air conditioner outdoor unit; the method comprises the following steps that physical address information of an air conditioner outdoor unit and unique codes of air conditioner indoor unit equipment form an internal and external machine matching table;
s2: the monitor broadcasts a starting password and an internal and external machine matching table to all the CCOs of the air-conditioning outdoor units, and the corresponding CCOs of the air-conditioning outdoor units acquire password information to complete the networking of the CCOs of the air-conditioning outdoor units and the corresponding air-conditioning indoor units;
s3: inserting a blank identification card of the wire controller into a CCO (central control unit), forming a network coding information code on the blank identification card of the wire controller, and forming an indoor unit-wire controller pairing table consisting of a unique code of an air-conditioning indoor unit device and a unique code of the wire controller device on the blank identification card of the wire controller;
s4: and inserting the identification card back to the wire controller, and accessing the wire controller to the PLC network to complete pairing between the indoor unit of the air conditioner and the wire controller.
Preferably, the monitor is provided with a PLC module, and the PLC module is connected to a PLC network, and acquires physical address information of the outdoor unit of the air conditioner, a unique device code of each indoor unit of the air conditioner, and a unique device code of each line controller by monitoring and collecting.
Preferably, the step S2 further includes the following steps: and storing the pairing corresponding relation between the air conditioner outdoor unit and each air conditioner indoor unit into the PLC network as a white list.
Preferably, in step S3, the identification card is a Flash card, and the main board of the outdoor unit of the air conditioner is configured to have a function of programming the Flash card through the SPI.
Preferably, the step S3 specifically includes the following steps:
s31, taking out the Flash card in the card slot on the casing of the wire controller;
and S32, inserting the Flash cards of all the wire controllers into a card slot of the air conditioner outdoor unit one by one, respectively programming each Flash card through a mainboard of the air conditioner outdoor unit, and forming a network code and an indoor unit-wire controller pairing table on each Flash card.
Preferably, in step S3, the identification card is a punch card, and the outdoor unit of the air conditioner is provided with a mechanical port having a punching function.
Preferably, the step S3 specifically includes the following steps:
s31, taking out the punched card in the card slot on the casing of the line controller;
and S32, inserting the punched cards of all the wire controllers into a card slot of the air conditioner outdoor unit one by one, punching each punched card through a main board of the air conditioner outdoor unit, and forming a network code and an indoor unit-wire controller pairing table on each punched card.
Preferably, in step S4, the line controller causes, through a serial port connected to the motherboard of the line controller, the network coding information on the identification card acquired by the motherboard and the indoor unit-line controller pairing table to be transmitted to the PLC module of the line controller, and the line controller is connected to the PLC network through the PLC module, and simultaneously completes pairing between the indoor unit of the air conditioner and the line controller.
Compared with the prior art, the invention has the beneficial effects that: according to the invention, the networking of the outdoor unit and the indoor unit is realized by matching the unique code of the air-conditioning indoor unit equipment with the physical address of the air-conditioning outdoor unit, and the networking mode of combining the pairing of the indoor unit and the wire controller is realized by adopting the identification card, so that the networking of the air-conditioning outdoor unit and the wire controller can be completed with zero intervention, the construction cost, the material cost and the debugging cost can be saved, and the problems of troublesome installation, high cost, inconvenience in maintenance and the like caused by physical connection in the prior art are solved.
Drawings
Fig. 1 is a schematic diagram of a networking mode of an outdoor unit, an indoor unit and a line controller of an air conditioner.
Detailed Description
The invention provides a PLC networking method through equipment unique code pairing and identification card pairing, and in order to make the invention more obvious and understandable, the invention is further explained with reference to the attached drawings and the specific implementation mode.
As shown in fig. 1, the multi-split air conditioner PLC (power line carrier communication) communication networking system of the present invention includes: an air conditioner outdoor unit, a plurality of air conditioner indoor units and a plurality of wire controllers. Any air conditioner indoor unit is matched with a wire controller. When the multi-split air conditioner is installed on site, the number of the air conditioner indoor units and the number of the line controllers contained in the multi-split air conditioner can be determined according to the requirements of users. And all the air conditioner outdoor units, the air conditioner indoor units and the wire controllers are provided with PLC communication modules.
The PLC networking method by matching the unique codes of the equipment and the identification cards comprises the following specific steps:
s1: during the debugging process, a debugging device (such as a monitor) is connected to the PLC network (i.e. the monitor is connected to a communication network through power line carrier communication). And the monitor sends network codes generated by combining the physical address information of the air conditioner outdoor unit, the corresponding unique codes of the air conditioner indoor unit equipment and the corresponding unique codes of the wire controller equipment to the CCO of the air conditioner outdoor unit.
During installation, the physical address information of the air conditioner outdoor unit and the unique code of the air conditioner indoor unit equipment can form an internal and external machine matching table. The air-conditioning indoor unit and the wire controller have corresponding unique equipment codes when leaving a factory, and the unique equipment codes of each indoor unit and each wire controller are unique.
The monitor is provided with a PLC communication module, the monitor is connected to a PLC network through the PLC communication module, and physical address information of the outdoor unit of the air conditioner, the unique equipment code of each indoor unit of the air conditioner and the unique equipment code of each wire controller are acquired through monitoring and collecting.
S2: in the debugging process, the monitor broadcasts a starting password and 'internal and external machine pairing and counting table' information to all the CCOs of the air-conditioning outdoor units, and after the corresponding CCOs of the air-conditioning outdoor units acquire the password information, the pairing corresponding relation between the air-conditioning outdoor units and the corresponding air-conditioning indoor units is stored in the PLC network as a white list. Therefore, networking between the CCO of the air conditioner outdoor unit and each corresponding air conditioner indoor unit is realized.
S3: the blank identification card of the wire controller is inserted into the CCO of the air conditioner outdoor unit, the blank identification card of the wire controller is formed with a network code through SPI (serial peripheral interface) programming or punching, and meanwhile, the blank identification card of the wire controller is also formed with an indoor unit-wire controller pairing table (namely pairing information between the indoor unit of the air conditioner and the wire controller) consisting of a unique code of the indoor unit equipment of the air conditioner and a unique code of the wire controller body equipment.
S4: the utility model discloses a wire controller, including line controller, serial ports, network coding and pairing information, the line controller is connected with the line controller, the line controller is inserted back to the card slot of line controller with the identification card that accomplishes SPI and write or punch, the network coding and the pairing information on the identification card can be acquireed to the mainboard of line controller, the network coding that will acquire and the PLC module of pairing information transmission for the line controller through the serial ports of connecting the mainboard, the line controller inserts the PLC network through its PLC module, also accomplish the pairing between air conditioning indoor set and the line controller simultaneously, possess the same air conditioning indoor set and the line controller of.
In a first preferred embodiment of the present invention, the blank identification card of the line controller may be a blank Flash card. If the blank identification card is a Flash card, the main board of the air conditioner outdoor unit is set to have a function of programming the Flash card through a Serial Peripheral Interface (SPI).
Therefore, step S3 specifically includes the following steps:
s31, taking out the Flash card in the card slot on the casing of the wire controller;
and S32, inserting the Flash cards of all the line controllers into a card slot of the air conditioner outdoor unit one by one, respectively programming each Flash card through a main board of the air conditioner outdoor unit, and forming network coding and pairing information on each Flash card.
In a second preferred embodiment of the present invention, the blank identification card of the drive-by-wire may also be a plastic thin card that can be punched. If the blank identification card is a punched card (for example, a plastic thin card capable of punching), a mechanical port with a punching function is arranged on the air conditioner outdoor unit.
Therefore, step S3 specifically includes the following steps:
s31, taking out the punched card in the card slot on the casing of the line controller;
and S32, inserting the punched cards of all the line controllers into a card slot of the air conditioner outdoor unit one by one, punching each punched card through a main board of the air conditioner outdoor unit, and forming network coding and pairing information on each punched card.
In summary, the invention realizes the networking of the outdoor unit and the indoor unit by matching the unique code of the air-conditioning indoor unit equipment with the physical address of the air-conditioning outdoor unit, and adopts the networking mode of combining the pairing of the indoor unit and the wire controller by adopting the identification card, thereby saving the construction cost, the material cost and the debugging cost, and solving the problems of troublesome installation, high cost, inconvenient maintenance and the like caused by physical connection in the prior art. .
While the present invention has been described in detail with reference to the preferred embodiments, it should be understood that the above description should not be taken as limiting the invention. Various modifications and alterations to this invention will become apparent to those skilled in the art upon reading the foregoing description. Accordingly, the scope of the invention should be determined from the following claims.
Claims (8)
1. A PLC networking method through equipment unique code pairing and identification card pairing is characterized by comprising the following steps:
s1: the monitor sends network codes generated by combining physical address information of the air conditioner outdoor unit, the corresponding unique codes of the air conditioner indoor unit equipment and the corresponding unique codes of the line controller equipment to the CCO of the air conditioner outdoor unit; the method comprises the following steps that physical address information of an air conditioner outdoor unit and unique codes of air conditioner indoor unit equipment form an internal and external machine matching table;
s2: the monitor broadcasts a starting password and an internal and external machine matching table to all the CCOs of the air-conditioning outdoor units, and the corresponding CCOs of the air-conditioning outdoor units acquire password information to complete the networking of the CCOs of the air-conditioning outdoor units and the corresponding air-conditioning indoor units;
s3: inserting the blank identification card of the wire controller into the CCO of the air-conditioning outdoor unit, forming a network code on the blank identification card of the wire controller, and simultaneously forming an indoor unit-wire controller pairing table consisting of the unique code of the air-conditioning indoor unit equipment and the unique code of the wire controller equipment on the blank identification card of the wire controller;
s4: and inserting the identification card back to the wire controller, and accessing the wire controller to the PLC network to complete pairing between the indoor unit of the air conditioner and the wire controller.
2. The PLC networking method of pairing by device unique code pairing and identification card pairing of claim 1,
the monitor is provided with a PLC module, the PLC module is used for accessing a PLC network, and physical address information of the outdoor unit of the air conditioner, the unique equipment code of each indoor unit of the air conditioner and the unique equipment code of each wire controller are acquired through monitoring and collecting.
3. The PLC networking method of pairing by device unique code pairing and identification card pairing of claim 1,
the step S2 further includes the following steps: and storing the pairing corresponding relation between the air conditioner outdoor unit and each air conditioner indoor unit into the PLC network as a white list.
4. The PLC networking method of pairing by device unique code pairing and identification card pairing of claim 1,
in the step S3, the identification card is a Flash card, and the main board of the outdoor unit of the air conditioner is configured to have a function of programming the Flash card through the SPI.
5. The PLC networking method of pairing by device unique code pairing and identification card pairing of claim 4,
the step S3 specifically includes the following steps:
s31, taking out the Flash card in the card slot on the casing of the wire controller;
and S32, inserting the Flash cards of all the wire controllers into a card slot of the air conditioner outdoor unit one by one, respectively programming each Flash card through a mainboard of the air conditioner outdoor unit, and forming a network code and an indoor unit-wire controller pairing table on each Flash card.
6. The PLC networking method of pairing by device unique code pairing and identification card pairing of claim 1,
in step S3, the identification card is a punching card, and a mechanical port having a punching function is provided on the outdoor unit of the air conditioner.
7. The PLC networking method of pairing by device unique code pairing and identification card pairing of claim 6,
the step S3 specifically includes the following steps:
s31, taking out the punched card in the card slot on the casing of the line controller;
and S32, inserting the punched cards of all the wire controllers into a card slot of the air conditioner outdoor unit one by one, punching each punched card through a main board of the air conditioner outdoor unit, and forming a network code and an indoor unit-wire controller pairing table on each punched card.
8. The PLC networking method of pairing by device unique code pairing and identification card pairing of claim 1,
in step S4, the line controller connects the serial port of the motherboard to transmit the network code on the identification card acquired by the motherboard and the pair of the indoor unit-line controller pair table to the PLC module of the line controller, and the line controller accesses the PLC network through the PLC module to complete pairing between the indoor unit of the air conditioner and the line controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810191535.XA CN108386965B (en) | 2018-03-08 | 2018-03-08 | PLC networking method through equipment unique code pairing and identification card pairing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810191535.XA CN108386965B (en) | 2018-03-08 | 2018-03-08 | PLC networking method through equipment unique code pairing and identification card pairing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108386965A CN108386965A (en) | 2018-08-10 |
| CN108386965B true CN108386965B (en) | 2020-09-04 |
Family
ID=63067088
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810191535.XA Active CN108386965B (en) | 2018-03-08 | 2018-03-08 | PLC networking method through equipment unique code pairing and identification card pairing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108386965B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108534299A (en) * | 2018-03-02 | 2018-09-14 | 珠海格力电器股份有限公司 | Networking method, device and system for air conditioning unit |
| CN110762604B (en) * | 2019-10-14 | 2020-09-15 | 珠海格力电器股份有限公司 | Indoor unit, pairing method and device of indoor unit and wired controller, storage medium and air conditioner |
| CN112413826B (en) * | 2020-11-13 | 2021-12-14 | 珠海格力电器股份有限公司 | Device configuration method and device, electronic device and storage medium |
| CN113203189B (en) * | 2021-04-30 | 2022-05-27 | 佛山市顺德区美的电子科技有限公司 | Pairing method and device of air conditioner based on power line communication and storage medium |
| CN113218041B (en) * | 2021-04-30 | 2022-04-19 | 佛山市顺德区美的电子科技有限公司 | Pairing method and device of air conditioner based on power line communication and storage medium |
| CN113203190B (en) * | 2021-04-30 | 2022-05-27 | 佛山市顺德区美的电子科技有限公司 | Pairing method, device and storage medium for air conditioner based on power line communication |
| CN116506246A (en) * | 2023-03-27 | 2023-07-28 | 青岛海尔空调电子有限公司 | Inner unit controllable setting method, device and electronic equipment of air conditioning system |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100561749B1 (en) * | 2004-03-12 | 2006-04-04 | 주식회사 젤라인 | Service-added meter gateway based on power line communication network and casing structure thereof, power line communication system and method using same |
| EP3481009B1 (en) * | 2011-12-28 | 2021-10-27 | Lutron Technology Company LLC | Load control system having independently-controlled units responsive to a broadcast controller |
| JP6245546B2 (en) * | 2013-04-19 | 2017-12-13 | パナソニックＩｐマネジメント株式会社 | COMMUNICATION DEVICE, COMMUNICATION SYSTEM, AND COMMUNICATION METHOD |
| CN103615789B (en) * | 2013-12-13 | 2015-12-09 | 青岛海信日立空调系统有限公司 | Based on air-conditioning centralized Control method and the multi-online air-conditioning system of indoor set marshalling |
| CN104410718B (en) * | 2014-12-22 | 2018-10-16 | 齐玉田 | Personalized customization method and equipment for Internet of Things |
| CN105526647A (en) * | 2015-12-11 | 2016-04-27 | 广东美的暖通设备有限公司 | Multi-split system and networking method thereof |
-
2018
- 2018-03-08 CN CN201810191535.XA patent/CN108386965B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN108386965A (en) | 2018-08-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108386965B (en) | PLC networking method through equipment unique code pairing and identification card pairing | |
| CN108386968B (en) | Networking method of multi-split air conditioner realized through unique equipment code and physical address | |
| KR20060103345A (en) | Self-organizing controller for heating, ventilation and air conditioning systems | |
| CN108266861B (en) | Multi-split air conditioning system capable of carrying out pairing networking through identification card and networking method thereof | |
| CN103383128A (en) | Centralized control system and control method for multi-connected central air conditioner | |
| CN110762604B (en) | Indoor unit, pairing method and device of indoor unit and wired controller, storage medium and air conditioner | |
| CN105509224B (en) | A kind of indoor unit and compressor of outdoor unit automatic matching method | |
| WO2014106443A1 (en) | Air-conditioning control system | |
| CN101105323A (en) | Central air conditioner controller of radio frequency radio data communication and its communication setting method | |
| CN113531667A (en) | Method and device for dehumidifying air conditioner and intelligent air conditioner | |
| CN110160204B (en) | Multi-split air conditioning system control method and multi-split air conditioning system | |
| CN108386967B (en) | Multi-split air conditioner PLC networking method adopting identification card and equipment unique code pairing | |
| CN108662718B (en) | Networking method and device of air conditioner | |
| CN108386966B (en) | P L C networking method through outdoor unit connecting pipe pairing and identification card pairing | |
| CN108931032A (en) | A kind of air conditioning control method, device, splitter arrangement and air conditioner | |
| CN208398334U (en) | The multi-online air-conditioning system of pairing networking is carried out by identification card | |
| KR20190142064A (en) | Air conditioner, and communication method of air conditioner using refrigerant piping | |
| US20090044552A1 (en) | Twinning of air conditioning units | |
| CN106052025B (en) | A kind of air conditioning control method and control device | |
| CN109945360B (en) | Air conditioning system, machine room air conditioning system and equipment control method of air conditioning system | |
| CN114740739B (en) | Methods, devices, systems, and storage media for centralized control of smart home appliances. | |
| EP4305355B1 (en) | Room unit for an hvac system and method for exchanging data between a mobile device and a room unit or an hvac system | |
| EP3327364A1 (en) | Transmission relay and air-conditioning apparatus using same | |
| CN105135634A (en) | Multi-mode air conditioner networking control device | |
| CN109428790B (en) | Water purifying dispenser, control system and control method thereof, and computer-readable storage medium |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230510 Address after: 401120 14th Floor, 107 Daguzhong Road, Xiantao Street, Yubei District, Chongqing Patentee after: WU QI TECHNOLOGIES, Inc. Address before: 200000 Pudong New Area, Shanghai, China (Shanghai) free trade trial area, No. 3, 1 1, Fang Chun road. Patentee before: SHANGHAI WU QI TECHNOLOGIES, Inc. Patentee before: WU QI TECHNOLOGIES, Inc. |