CN202334567U - Intelligent household electrical apparatus control system - Google Patents
Intelligent household electrical apparatus control system Download PDFInfo
- Publication number
- CN202334567U CN202334567U CN2011204675667U CN201120467566U CN202334567U CN 202334567 U CN202334567 U CN 202334567U CN 2011204675667 U CN2011204675667 U CN 2011204675667U CN 201120467566 U CN201120467566 U CN 201120467566U CN 202334567 U CN202334567 U CN 202334567U
- Authority
- CN
- China
- Prior art keywords
- intelligent domestic
- electrical equipment
- domestic electrical
- wireless
- wireless mesh
- 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.)
- Expired - Lifetime
Links
- 238000004891 communication Methods 0.000 claims description 11
- 230000005540 biological transmission Effects 0.000 abstract description 8
- 238000005516 engineering process Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 230000006855 networking Effects 0.000 description 4
- 230000005611 electricity Effects 0.000 description 2
- 230000002452 interceptive effect Effects 0.000 description 2
Images
Landscapes
- Small-Scale Networks (AREA)
- Mobile Radio Communication Systems (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
Abstract
The utility model provides an intelligent household electrical apparatus control system, which is applied to a wireless mesh network and comprises a wireless mesh router and various intelligent household electrical apparatuses. One end of the wireless mesh router is in wireless connection with at least two kinds of intelligent household electrical apparatuses of the various intelligent household electrical apparatuses, the other intelligent household electrical apparatuses of the various intelligent household electrical apparatuses are in direct or indirect wireless connection with the two intelligent household electrical apparatuses, and a wireless mesh network is composed by the various intelligent household electrical apparatuses. The other end of the wireless mesh router is in wired connection with an internet, and provides multi-hop wireless mesh network connection for the various intelligent household electrical apparatuses. The intelligent household electrical apparatus control system is based on 433MHz, achieves a mesh network at home, solves the technical problems of instability of wireless use of the existing household electrical apparatuses and difficulty of network access, improves stability and data transmission efficiency of a whole household electric system, and simultaneously facilitates access of new devices.
Description
Technical field
The utility model relates to networking technology area, particularly a kind of intelligent domestic electrical apparatus control system.
Background technology
Along with the continuous progress of science and technology with society, living standards of the people improve constantly, and intelligent domestic electrical equipment has progressed into people's life.But, along with being widely used of intelligent domestic electrical equipment, some problems that in the process of using, also thereupon come out, such as, the blind spot region of wireless signal, the intelligent domestic appliance chamber disturbs, insufficient bandwidth, the networking difficulty too relies on AP primary gateway or the like problem.
At present; Radio communication between household electrical appliance is mostly based on 433MHz; Generally by a fixing gateway (such as access point AP or router) access network; In case gateway breaks down, then all wireless home electrical equipment of this gateway management all can not communicate, thus influence power user's usage degree.
In research and practice process to prior art, the utility model people of the utility model finds that in the existing home wireless environment, the blind area is promptly controlled in the place that usually exists wireless signal to cover.If there are a plurality of household electrical appliance to use simultaneously, also can occur interfering with each other between each electrical equipment, situation such as signal difference, limited bandwidth, the difficult perhaps control fails of access, thus reduced the stability of the wireless uses of household electrical appliance and user's satisfaction.
The utility model content
The utility model embodiment provides a kind of intelligent domestic electrical apparatus control system, with unsteadiness and the difficult technical problem of access network that solves the existing wireless use of household electrical appliance.
For solving the problems of the technologies described above; The utility model embodiment provides a kind of intelligent domestic electrical apparatus control system; Said system applies is in the based on wireless mesh network based on 433MHz; Said system comprises: wireless mesh router and multiple intelligent domestic electrical equipment; At least two kinds of intelligent domestic electric appliance wireless are connected in one end of said wireless mesh router and the said multiple intelligent domestic electrical equipment, in the said multiple intelligent domestic electrical equipment all the other intelligent domestic electrical equipment respectively with said two kinds of direct or indirect wireless connections of intelligent domestic electrical equipment, form based on wireless mesh network between the said multiple intelligent domestic electrical equipment; The other end of said wireless mesh router and internet wired connection, and be that said multiple intelligent domestic electrical equipment provides the based on wireless mesh network of multi-hop to connect.
Preferably, include in every kind of intelligent domestic electrical equipment: the 433MHz wireless communication unit is used for sending and receiving wireless signal.
Preferably, in said based on wireless mesh network, every kind of intelligent domestic electrical equipment is all as access point AP or router, is used for sending and receiving wireless signal, and directly communicates with the intelligent domestic electrical equipment of one or more equities.
Preferably; Said system also comprises: laptop computer, mobile phone, palmtop PC PDA or panel computer PAD; Said laptop computer, mobile phone, palmtop PC PDA and/or panel computer PAD are respectively with one or more wireless connections of said multiple intelligent domestic electrical equipment.
Preferably, said system also comprises: new intelligent domestic electrical equipment, after powering on for new intelligent domestic electrical equipment, said new intelligent domestic electrical equipment is searched for based on wireless mesh network automatically, and adds the said based on wireless mesh network that searches automatically.
The utility model embodiment just is based on 433MHz; The unsteadiness and the difficult technical problem of access network of the wireless use of existing household electrical appliance have been solved; The stability of household electricity entire system and the efficient of transfer of data have been improved, simultaneously the access of convenient new equipment.
Description of drawings
The structural representation of a kind of intelligent domestic electrical apparatus control system that Fig. 1 provides for the utility model embodiment;
The structural representation of the application example of a kind of intelligent domestic electrical apparatus control system that Fig. 2 provides for the utility model embodiment.
Embodiment
In order to make those skilled in the art person understand the scheme of the utility model embodiment better, the utility model embodiment is done further detailed description below in conjunction with accompanying drawing and execution mode.
See also Fig. 1, the structural representation of a kind of intelligent domestic electrical apparatus control system that provides for the utility model embodiment, said system applies in this embodiment, is example with 5 kinds of intelligent domestic electrical equipment, but is not limited to this in the based on wireless mesh network based on 433MHz.Said system comprises: wireless mesh router one 1 and multiple intelligent domestic electrical equipment 12; At least two kinds of intelligent domestic electric appliance wireless (present embodiment is example with the first intelligent domestic electrical equipment 121 with the second intelligent domestic electrical equipment 122) are connected in one end of said wireless mesh router one 1 and the said multiple intelligent domestic electrical equipment; All the other intelligent domestic electrical equipment in said a plurality of intelligent domestic electrical equipment (i.e. the 3rd intelligent domestic electrical equipment 123, the 4th intelligent domestic electrical equipment 124 to the 5th intelligent domestic electrical equipment 125) respectively with directly or indirectly wireless connections of said two intelligent domestic electrical equipment (i.e. the first intelligent domestic electrical equipment 121 and the second intelligent domestic electrical equipment 122), form wireless mesh (Mesh) network between the said multiple intelligent domestic electrical equipment; The other end of said wireless mesh router one 1 and internet 13 wired connections, and be that said multiple intelligent domestic electrical equipment provides the based on wireless mesh network of multi-hop to connect.In this embodiment; The said first intelligent domestic electrical equipment, the second intelligent domestic electrical equipment, the 3rd intelligent domestic electrical equipment, the 4th intelligent domestic electrical equipment and the 5th intelligent domestic electrical equipment; Can be with a kind of intelligent domestic electrical equipment; Can be intelligent domestic electrical equipment not of the same race, present embodiment limit yet.
Preferably, in this embodiment, can comprise in every kind of intelligent domestic electrical equipment: the 433MHz wireless communication unit is used for sending and receiving wireless signal.
Preferably, in based on wireless mesh network, each intelligent domestic electrical equipment all can be used as access point AP or router, is used for sending and receives wireless signal, directly communicates with the intelligent domestic electrical equipment of one or more equities.
That is to say; In wireless Mesh netword, an intelligent domestic electrical equipment can not only transmit and reception information, can also serve as router near intelligent domestic electrical equipment forwarding information it; Along with the increase with possible number of paths that interconnects of more intelligent domestic electrical equipment, total bandwidth also increases greatly.
Among the utility model embodiment; Because intelligent domestic electrical equipment inserts wireless Mesh netword; Any intelligent domestic electrical equipment in this wireless Mesh netword can be simultaneously as access point AP (Access Point) or router; Can send and receive wireless signal, each intelligent domestic electrical equipment can also carry out direct communication with one or more reciprocity intelligent domestic electrical equipment.
And in the existing interactive network technology: in wireless lan (wlan), each intelligent domestic electrical equipment all visits network through a Radio Link that links to each other with access point AP, forms the BSS (Basic Service Set) of a part.Intelligent domestic electrical equipment must at first be visited a fixing access point AP if intercom mutually.
This shows; The utility model embodiment compared with prior art; Because any one intelligent domestic electrical equipment can be simultaneously as access point AP; If it is congested that nearest intelligent domestic electrical equipment causes owing to flow is excessive, data can be routed to the less contiguous intelligent domestic electrical equipment of communication flows automatically again and transmit so.The rest may be inferred, and data can also continue to be routed to nearest with it next intelligent domestic electrical equipment and transmit according to the situation of network, till arriving the final destination.
Preferably, said system can also comprise: new intelligent domestic electrical equipment, after powering on for new intelligent domestic electrical equipment, said new intelligent domestic electrical equipment is searched for based on wireless mesh network automatically, and adds the said based on wireless mesh network that searches automatically
That is to say, among the utility model embodiment, compare that wireless Mesh netword has removed the wiring demand between the node (being intelligent domestic electrical equipment), but still have redundancy scheme that distributed network provides and routing function again with existing switching network.In wireless Mesh netword, if add new equipment (such as intelligent domestic electrical equipment, perhaps other wireless devices; Such as mobile phone etc.); It is just passable only need to connect with the mains simply, and this new equipment can carry out self-configuration automatically, and confirms best multi-hop transmission path.When interpolation or mobile device, network can be found change in topology automatically, and adjusts the communication route automatically, to obtain the most effectively transmission path.
Preferably, said system can also comprise: laptop computer, mobile phone, palmtop PC PDA or panel computer PAD, said laptop computer, mobile phone, palmtop PC PDA and/or panel computer PAD are connected with said intelligent domestic electric appliance wireless respectively.
Hence one can see that; Networking model that the utility model embodiment changes is old-fashioned " one main many from "; 433MHz through intelligent domestic electrical equipment is commonly used is wireless, realizes the intelligent domestic electrical equipment networking of " many masters, multiple spot, multipath ", and the selfreparing through wireless mesh network, self-optimizing, characteristics such as establishment certainly; Each intelligent domestic electrical equipment can come Data transmission as AP or route.In the corner that network signal does not cover, can the reliability of network and the efficiency of transmission of data have been improved greatly through other wireless device as the AP Data transmission.Simultaneously,, will insert wireless mesh network automatically, reduce a large amount of configuration operations as long as newly-increased wireless device powers on.At one stroke improve the instability that legacy device is exposed when running into complex situations, be subject to disturb, signal difference inserts problems such as difficulty, thereby has improved user's satisfaction.
Also see also Fig. 2, the structural representation of the application example of a kind of intelligent domestic electrical apparatus control system that provides for the utility model embodiment.In this embodiment, inserting wireless mesh network with 9 intelligent domestic electrical equipment is example, and for the ease of describing, the intelligent domestic electrical equipment in the present embodiment is described with client (mesh clients).Wireless mesh network is formed in wireless connections between the client.
As shown in the figure, in wireless mesh network, to form by wireless mesh router (mesh routers) and client (mesh clients), present embodiment is an example with a wireless mesh router and a plurality of client.Wherein, client can be an intelligent domestic electrical equipment, also can be other wireless devices.This instance is an example with intelligent domestic electrical equipment, like the M1 to M9 among the figure, but is not limited to this.In this embodiment, meshrouters constitutes backbone network, and is connected with wired internet (internet), and being responsible for meshclients provides the wireless internet network of multi-hop to connect.The wireless Mesh netword that present embodiment gathers is also referred to as multi-hop (multi-hop) network, and it is a kind of and the diverse new technique of conventional wireless network.Wireless Mesh netword among the utility model embodiment is based on the mesh wireless network of 433MHz, can better adapt to the communication needs of Smart Home.
Wireless Mesh netword in this instance is through the MANET function; With each intelligent domestic electrical equipment (the 433MHz Equipment that inserts; The equipment that promptly comprises the 433MHz wireless communication unit) can be as an independent access point AP or router access network; Under the basis of at least two wireless devices (being intelligent domestic electrical equipment); Directly be used for various transmission combination, be equivalent to each wireless device (such as intelligent domestic electrical equipment) and can connect a plurality of AP, guaranteed that data transmit on the path of optimum.In this wireless mesh network; No matter single wireless device (being intelligent domestic electrical equipment) fault still is certain bar communication path mistake; Even communication channel is crowded, all can generate new path automatically, and is uninterrupted to guarantee transfer of data; Initiate household electrical appliances can become the part of network automatically, so the many more networks of equipment are reliable more.Network is when the transmission data, and system can distribute best route automatically, has increased the effective coverage range of signal simultaneously.Such as, when M8 sent data, M1 can send the data to M8 through M5 like the M1 among the figure, shown in dotted line among the figure; M1 also can pass through M2 and M5, sends the data to M8, that is to say; During transfer of data, suitable path can be sought automatically by system, not necessarily will depend on gateway.
That is to say that the wireless Mesh netword that the utility model embodiment provides is a kind of and traditional diverse network of wireless network.In traditional wireless access technology, mainly adopt point-to-point perhaps to put the topological structure of multiple spot.Generally all have a Centroid in this topological structure, Centroid links to each other through single hop wireless link with each wireless client, and controls the visit of each wireless client to wireless network; Simultaneously, link to each other with wired backbone through wire link again, be provided to the connection of backbone network.And in the wireless Mesh netword that present embodiment provides, adopt netted Mesh topological structure, be that a kind of multiple spot is to multipoint network topological.In this Mesh network configuration, each network node (such as intelligent domestic electrical equipment) links to each other with the wireless multi-hop mode through adjacent other network nodes (other adjacent intelligent domestic electrical equipment).
Preferably; In this embodiment, except intelligent domestic electrical equipment, can also comprise the wireless device that inserts wireless mesh network; Said wireless device can be laptop computer, mobile phone, PDA, PAD, intelligent appliance etc., can also be the subscriber equipment that wireless network card, antenna are housed.
In the Mesh network, a node can not only transmit and reception information, can also serve as router near node forwarding information it, and along with the increase with possible number of paths that interconnects of more nodes, total bandwidth also increases greatly.
In addition, in the Mesh network, be to connect with the short wireless network of a rule to replace the connection of long distance in the past, guarantee higher bandwidth simultaneously.Because each intelligent domestic electric appliances can be as AP or router, and is constantly interconnected through it, greatly expanded the coverage of signal virtually.
Equipment inserts extremely easyly in the Mesh network, and any signal is based on the household electrical appliances of 433mHZ mesh network, as long as energized, network can be its automatic configuration path.So this has greatly simplified the process of network struction.
The utility model embodiment just is based on 433MHz; The unsteadiness and the difficult technical problem of access network of the wireless use of existing household electrical appliance have been solved; The stability of household electricity entire system and the efficient of transfer of data have been improved, simultaneously the access of convenient new equipment.
Description through above execution mode; Those skilled in the art can be well understood to the utility model and can realize by the mode that software adds essential general hardware platform; Can certainly pass through hardware, but the former is better execution mode under a lot of situation.Based on such understanding; The part that the technical scheme of the utility model contributes to prior art in essence in other words can be come out with the embodied of software product; This computer software product can be stored in the storage medium, like ROM/RAM, magnetic disc, CD etc., comprises that some instructions are with so that a computer equipment (can be a personal computer; Server, the perhaps network equipment etc.) carry out the described method of some part of each embodiment of the utility model or embodiment.
The above only is the preferred implementation of the utility model; Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; Can also make some improvement and retouching, these improvement and retouching also should be regarded as the protection range of the utility model.
Claims (5)
1. intelligent domestic electrical apparatus control system; It is characterized in that; Be applied to based on wireless mesh network based on 433MHz; Said system comprises: wireless mesh router and multiple intelligent domestic electrical equipment; At least two kinds of intelligent domestic electric appliance wireless are connected in one end of said wireless mesh router and the said multiple intelligent domestic electrical equipment, in the said multiple intelligent domestic electrical equipment all the other intelligent domestic electrical equipment respectively with said two kinds of direct or indirect wireless connections of intelligent domestic electrical equipment, form based on wireless mesh network between the said multiple intelligent domestic electrical equipment; The other end of said wireless mesh router and internet wired connection, and be that said multiple intelligent domestic electrical equipment provides the based on wireless mesh network of multi-hop to connect.
2. system according to claim 1 is characterized in that, includes in every kind of intelligent domestic electrical equipment: the 433MHz wireless communication unit is used for sending and receiving wireless signal.
3. system according to claim 1; It is characterized in that in said based on wireless mesh network, every kind of intelligent domestic electrical equipment is all as access point AP or router; Be used for sending and receive wireless signal, and directly communicate with the intelligent domestic electrical equipment of one or more equities.
4. according to each described system of claim 1 to 3; It is characterized in that; Said system also comprises: laptop computer, mobile phone, palmtop PC PDA or panel computer PAD; Said laptop computer, mobile phone, palmtop PC PDA and/or panel computer PAD are respectively with one or more wireless connections of said multiple intelligent domestic electrical equipment.
5. according to each described system of claim 1 to 3; It is characterized in that; Said system also comprises: new intelligent domestic electrical equipment; After powering on for new intelligent domestic electrical equipment, said new intelligent domestic electrical equipment is searched for based on wireless mesh network automatically, and adds the said based on wireless mesh network that searches automatically.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204675667U CN202334567U (en) | 2011-11-22 | 2011-11-22 | Intelligent household electrical apparatus control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204675667U CN202334567U (en) | 2011-11-22 | 2011-11-22 | Intelligent household electrical apparatus control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202334567U true CN202334567U (en) | 2012-07-11 |
Family
ID=46446530
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204675667U Expired - Lifetime CN202334567U (en) | 2011-11-22 | 2011-11-22 | Intelligent household electrical apparatus control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202334567U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102387056A (en) * | 2011-11-22 | 2012-03-21 | 国网信息通信有限公司 | Intelligent household electrical appliance control system |
| CN102868452A (en) * | 2012-09-06 | 2013-01-09 | 上海欣影电力科技发展有限公司 | Mixed networking system for dense transmission channel |
| CN104683191A (en) * | 2013-11-29 | 2015-06-03 | 英业达科技有限公司 | Household electronic device and control method thereof as well as household electronic network system |
| CN104898449A (en) * | 2015-06-04 | 2015-09-09 | 泰凌微电子（上海）有限公司 | Smart home system and control method thereof |
| CN107623938A (en) * | 2016-07-13 | 2018-01-23 | 北京捷联微芯科技有限公司 | The method and its system of large number quipments access internet in WLAN |
| CN105245574B (en) * | 2015-09-09 | 2018-09-28 | 深圳市唯传科技有限公司 | Internet of Things network control method and system based on mobile terminal multi-hop |
| CN108768797A (en) * | 2018-04-03 | 2018-11-06 | 青岛海尔科技有限公司 | A kind of control method of intelligent electric appliance, device, computer equipment and storage medium |
-
2011
- 2011-11-22 CN CN2011204675667U patent/CN202334567U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102387056A (en) * | 2011-11-22 | 2012-03-21 | 国网信息通信有限公司 | Intelligent household electrical appliance control system |
| CN102868452A (en) * | 2012-09-06 | 2013-01-09 | 上海欣影电力科技发展有限公司 | Mixed networking system for dense transmission channel |
| CN102868452B (en) * | 2012-09-06 | 2015-11-25 | 上海欣影电力科技发展有限公司 | A kind of mixed networking system for dense transmission channel |
| CN104683191A (en) * | 2013-11-29 | 2015-06-03 | 英业达科技有限公司 | Household electronic device and control method thereof as well as household electronic network system |
| CN104898449A (en) * | 2015-06-04 | 2015-09-09 | 泰凌微电子（上海）有限公司 | Smart home system and control method thereof |
| CN105245574B (en) * | 2015-09-09 | 2018-09-28 | 深圳市唯传科技有限公司 | Internet of Things network control method and system based on mobile terminal multi-hop |
| CN107623938A (en) * | 2016-07-13 | 2018-01-23 | 北京捷联微芯科技有限公司 | The method and its system of large number quipments access internet in WLAN |
| CN108768797A (en) * | 2018-04-03 | 2018-11-06 | 青岛海尔科技有限公司 | A kind of control method of intelligent electric appliance, device, computer equipment and storage medium |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102387056A (en) | Intelligent household electrical appliance control system | |
| CN202334567U (en) | Intelligent household electrical apparatus control system | |
| Ali et al. | Disaster management using D2D communication with power transfer and clustering techniques | |
| Qiu et al. | Optimizing the placement of integration points in multi-hop wireless networks | |
| Muthaiah et al. | Single gateway placement in wireless mesh networks | |
| CN105357116B (en) | A kind of method and intelligent terminal of multiple terminal access server | |
| Goma et al. | Insomnia in the access: or how to curb access network related energy consumption | |
| Jaber et al. | A distributed SON-based user-centric backhaul provisioning scheme | |
| CN101707571A (en) | Power line and wireless dual-network routing method | |
| CN102971988A (en) | Alternate down paths for directed acyclic graph (DAG) routing | |
| CN102204209B (en) | Method, system and network device for quality of service (qos) negotiation in cross-medium networks | |
| Gao et al. | Solutions for the “silent node” problem in an automatic meter reading system using power-line communications | |
| CN108353464A (en) | Mesh network connectivity | |
| Biagi et al. | Geo-routing algorithms and protocols for power line communications in smart grids | |
| Xu et al. | Self-organizing load balancing for relay based cellular networks | |
| CN105357729A (en) | Electric meter collective reading system and method based on JRoute micropower wireless ad hoc network | |
| Li et al. | UCB‐Based Route and Power Selection Optimization for SDN‐Enabled Industrial IoT in Smart Grid | |
| Das et al. | A game-theory based secure routing mechanism in mobile ad hoc network | |
| Khan et al. | Quasi centralized clustering approach for an energy-efficient and vulnerability-aware routing in wireless sensor networks | |
| CN202353820U (en) | Novel wireless network system | |
| Sarafi et al. | Optimal TDMA scheduling in tree-based power-line communication networks | |
| Tan et al. | A distributed and dynamic data gathering protocol for sensor networks | |
| Torres et al. | Improving lifetime and availability for ad hoc networks to emergency and rescue scenarios | |
| Papapostolou et al. | Path selection algorithms for fault tolerance in wireless mesh networks | |
| Junnarkar et al. | Novel quality of service (qos) improvement routing protocol for manet using ant colony optimization |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: STATE GRID INFORMATION + TELECOMMUNICATION CO., LT Effective date: 20120724 Owner name: STATE ELECTRIC NET CROP. Free format text: FORMER OWNER: STATE GRID INFORMATION + TELECOMMUNICATION CO., LTD. Effective date: 20120724 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 100761 XICHENG, BEIJING TO: 100031 XICHENG, BEIJING |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20120724 Address after: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Co-patentee after: State Grid Information & Telecommunication Co., Ltd. Patentee after: State Grid Corporation of China Address before: 100761 Beijing Xicheng District city two, Baiguang Road Patentee before: State Grid Information & Telecommunication Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120711 |