CN102523067B - Industrial-grade optical transmission system - Google Patents
Industrial-grade optical transmission system Download PDFInfo
- Publication number
- CN102523067B CN102523067B CN201110452510.9A CN201110452510A CN102523067B CN 102523067 B CN102523067 B CN 102523067B CN 201110452510 A CN201110452510 A CN 201110452510A CN 102523067 B CN102523067 B CN 102523067B
- Authority
- CN
- China
- Prior art keywords
- optical transmission
- transmission device
- optical
- terminal equipment
- ptn
- 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
- 230000003287 optical effect Effects 0.000 title claims abstract description 144
- 230000005540 biological transmission Effects 0.000 title claims abstract description 112
- 230000001360 synchronised effect Effects 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 6
- 239000000284 extract Substances 0.000 claims description 5
- 230000002123 temporal effect Effects 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 3
- 238000004891 communication Methods 0.000 abstract description 7
- 238000005538 encapsulation Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000000835 fiber Substances 0.000 description 2
- 239000013307 optical fiber Substances 0.000 description 2
- 101100289995 Caenorhabditis elegans mac-1 gene Proteins 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004503 fine granule Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000006855 networking Effects 0.000 description 1
Abstract
The invention discloses an industrial-grade optical transmission system, belonging to the field of power communication. In the industrial-grade optical transmission system, optical transmission equipment also comprises a main interface module and a standby interface module facing to optical terminal equipment, wherein the main interface module is a wired interface module, and the standby interface module is a wireless interface module; the wired interface module is used for wired connection with optical network equipment; the wireless interface module is used for wireless connection with a main station side; and when a main interface fails in data transmission, a standby interface is started by a configuration with external network management. According to the industrial-grade optical transmission system, the synchronization of networks is realized, convergence, transparent transmission and exchange are carried out on different data, the safety of information transmission is enhanced, the main-standby switching function of an optical network and a wireless network is realized, the transmission of important data is ensured and the reliability of the networks is improved.
Description
Technical field
The present invention relates to industrial control field, especially field of power communication, realize the reliable of information between electric power terminal device and master device, transmit in real time.
Background technology
Current industrial control network needs the information transmission realizing long distance, as power communication system needs to realize the information transmission in tens kilometers or hundreds of kilometer range between power information terminal and central master station.These transmission request message communication networks possess high real-time, reliability, ALARA Principle, can safeguard.For this reason, the information access under usually adopting Ethernet passive optical network (EPON) to realize without electronic relay condition.But it is numerous that EPON network cannot meet terminal node in industrial communication network, information type is complicated, the requirements such as information flow-rate is little, difficult management.EPON network neither a synchronizing network, cannot meet the requirement of real-time of industrial information.
The multiple two-way point-to-point interface channel based on packet switching service of packet network PTN technical support, has applicable various large or fine granule business, networking capability end to end, fundamentally solve terminal node numerous, information type is complicated, the problems such as information flow-rate is little, difficult management.But lack information access ability under without electronic relay condition.
But, it is numerous to be at present no matter that EPON or PTN device all can not meet terminal node in industrial communication network, information type is complicated, the requirements such as information flow-rate is little, difficult management, therefore need one to can be used in industrial circle and carry out long haul communication, transparent transmission is carried out to information, converge, exchange, synchronous equipment is carried out to clock.
Summary of the invention
The object of this invention is to provide a kind of industrial-grade optical transmission system, this system can realize transparent transmission, the convergence of data, exchanges, realizes Network Synchronization and standby usage interface inverting.
For achieving the above object, the invention provides a kind of industrial-grade optical transmission system, comprise the PTN device of main website side, optical transmission device and optical terminal equipment composition, described PTN device connects optical transmission device, optical transmission device connects optical terminal equipment, and described optical transmission device comprises PTN module, ODN module and OLT module, wherein this PTN module is used for converging data, transparent transmission process, this ODN module is for accessing this optical terminal equipment, this OLT module is used for the exchange process of data, it is characterized in that: described optical transmission device also comprises the first interface towards this optical terminal equipment, this first interface is made up of host interface module and spare interface module, wherein this host interface module is wired interface module, and this spare interface module is radio interface module,
Described wired interface module is used for wired connection optical terminal equipment;
Described radio interface module is used for wireless connections optical terminal equipment;
When described main interface breaks down when transfer of data, start spare interface by out of band network management configuration.
Described optical transmission device also comprises clock synchronization module, for realizing the clock synchronous of industrial-grade optical transmission system:
Clock synchronization module in described optical transmission device is used for carrying out clock information with PTN device alternately, and from PTN device, extract the clock information of at least one main website;
Clock synchronization module in described optical transmission device also for the treatment of corresponding main website clock information and send to optical terminal equipment, be directly transmitted to user side by this optical terminal equipment.
Remarkable result of the present invention is: achieve the synchronous of network, converges, transparent transmission to different data, exchanges, enhances the fail safe of transfer of data.Realize the masterslave switchover function of optical-fiber network and wireless network, ensure that the transmission of significant data, improving can the reliability of network.
Accompanying drawing explanation
Fig. 1 network environment example key diagram;
Fig. 2 contains the frame structure of the EPON Frame of PTP message;
Time synchronized flow chart between Fig. 3 PTN device and optical transmission device;
Synchronizing information between Fig. 4 optical transmission device and optical terminal equipment transmits schematic diagram;
Fig. 5 Frame encapsulation format in a device;
The convergence of Fig. 6 data in industrial-grade optical transmission system and transparent transmission;
The example key diagram that the active and standby interface module of Fig. 7 is switched.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail:
In order to realize the clock synchronous of network, this optical transmission device adds clock synchronization module, for realizing the clock synchronous of industrial-grade optical transmission system: the clock synchronization module in this optical transmission device is used for carrying out clock information with PTN device alternately, and extracts the clock information of at least one main website from PTN device; And the clock synchronization module in this optical transmission device also for the treatment of corresponding main website clock information and send to optical terminal equipment, be directly transmitted to user side by this optical terminal equipment.
For the network environment of Fig. 1, assuming that object is that the clock of main website 1 is passed to user side 1, the clock information of main website 2 is passed to user side 2.
The first step be optical transmission device to the clock synchronous between PTN device, mutual message form as shown in Figure 2, first, sends Sync message by PTN device to optical transmission device, and records the time T left of this message
1, then optical transmission device have received this Sync message, and records this message T time of advent
2, and then will with T by PTN device
1the timestamp of information is beaten on Follow_Up message, and sends to optical transmission device, and now optical transmission device sends Delay_Req message to PTN device, and optical transmission device records the time T that this message leaves website
3, PTN device receives this message subsequently, and records the time T of Delay_Req message arrival
4, and by T
4beat inside Delay_Resp message, and send to optical transmission device.Now, having shaken hands between optical transmission device and PTN device, optical transmission device has T
1, T
2, T
3, T
4the information in these 4 moment.If the propagation delay time between PTN device and optical transmission device is T
ms, the propagation delay time between optical transmission device and PTN device is T
sm, the time of the advanced PTN device clock of optical transmission device clock is T
offset, then can obtain following expression formula:
T
ms＝T
2-T
1-T
offset
T
sm＝T
4-T
3+T
offset
Supposing that the time delay of the transmitted in both directions of link is consistent, is namely T
sm=T
ms=T
path, then can obtain
T
path＝0.5*(T
sm+T
ms)＝0.5*(T
2+T
4-T
1-T
3)
PTN device extracts the clock information of main website, and be located at some moment, the clock information of PTN device is T
p1, it is T that PTN device obtains main website 1 time information now
m1, main website 2 time information is at this moment T
m2, suppose in PTN device at T
p2time the time information of main website is sent to optical transmission device, the moment receiving this information is recorded by optical transmission device, is T
oLT1.Then when optical transmission device receives these clock informations, the time information of main website 1 should be
T
M1′＝T
M1+(T
P2-T
P1)+T
path
The time information of main website 2 should be
T
M2′＝T
M2+(T
P2-T
P1)+T
path
Second step is that the clock information of main website is passed to optical terminal equipment, and as shown in Figure 4, optical transmission device periodically sends Sync frame to optical terminal equipment to its time synchronized flow chart, wherein leaves the time T of optical transmission device containing this frame
oLT2.Propagation delay time simultaneously between optical transmission device and optical terminal equipment is known, makes the propagation delay time between optical transmission device and optical terminal equipment _ 1 be T
d1, the propagation delay time between optical transmission device and optical terminal equipment _ 2 is T
d2, then the temporal information mail in the Sync frame of optical terminal equipment _ 1 is when estimating that this frame arrives optical terminal equipment _ 1, the clock of main website
T″
M1＝T
M1′+(T
OLT2-T
OLT1)+T
d1
＝T
M1+(T
P2-T
P1)+T
path+(T
OLT2-T
OLT1)+T
d1
The main website moment when temporal information mail in the Sync frame of optical terminal equipment _ 2 is this frame arrival optical terminal equipment _ 2
T″
M2＝T
M2′+(T
OLT2-T
OLT1)+T
d2
＝T
M2+(T
P2-T
P1)+T
path+(T
OLT2-T
OLT1)+T
d2
After optical terminal equipment receives the Sync frame that optical transmission device sends, any process is not done to it, directly this Sync frame is transmitted to user side, in this process, just achieve the polyphyly of time synchronized, synchronous with EPON network.
Realize different pieces of information exchange, convergence, transparent transmission example:
As shown in Figure 5, first three is the encapsulation format of data in user side; 4th is the encapsulation format of data at optical terminal equipment, and the 5th is the encapsulation format of data at optical transmission device.
As shown in Figure 6, arrive destination user 3 and user 6 with the data of user 1 by transmission network in one embodiment of the invention, and the data of user 2 arrive destination user 5 for example by transmission network and industrial-grade optical transmission system are described by optical transmission device and optical terminal equipment realization to the isolation of different user data, convergence and transparent transmission.
Frame is at user 1 and user 2 place, encapsulate with IEEE802.3 standard, wherein, the source MAC of frame packaged by user 1 is MAC 1, target MAC (Media Access Control) address is MAC 3 and MAC 6, and the source MAC of frame packaged by user 2 is MAC 2, target MAC (Media Access Control) address is MAC 5.At subscriber exchange CE 1 and CE 2 place, the data of user 1 and user 2 are encapsulated with IEEE802.1Q standard respectively, to be respectively be 200 and 220 to the Frame C-VID mark exported from P1 port, and the Frame C-VID exported from P3 port is 210 as shown in Figure 6.
At optical terminal equipment place, from the Frame of P2 port transmission according to similar IEEE802.lQa
ystandard logarithmic is according to frame Reseal, wherein, C-VID be 200 Frame be packaged into that I-SID is 100001, B-VID is 300, the Frame of B-DA to be MAC-D, B-SA be MAC-A, C-VID be 220 Frame be packaged into that I-SID is 100021, B-VID is 320, the Frame of B-DA to be MAC-C, B-SA be MAC-A, and all to export from P4 port.C-VID be 210 Frame be packaged into that I-SID is 100011, B-VID is 310, the Frame of B-DA to be MAC-C, B-SA be MAC-A, and to export as shown in Figure 6 from P4 port.
At optical transmission device place, according to the configuration to optical transmission device, I-SID is 100001, B-VID is 300, this equipment of the direct transparent transmission of Frame of B-DA to be MAC-D, B-SA be MAC-A, and exports from port P8; According to the configuration of network to optical transmission device, I-SID is 100021, B-VID be 320 and I-SID be 100011, B-VID be 310 Frame be all again encapsulated as the Frame that BS-VID is 500, and to export from port P6.
Transmission network other end PTN device D is to after the Frame decapsulation received, and exporting C-VID from P10 port is the Frame of 200; Destination MAC 3 is forwarded the data to again by main website 2.
Other end PTN device C to after the Frame decapsulation received, from P11 port export C-VID be 210 and C-VID be the Frame of 220.Destination MAC5 and MAC 6 is forwarded the data to as shown in Figure 6 again by main website 1.
In order to realize the isomery of network, this industrial-grade optical transmission system comprises the PTN device of main website side, optical transmission device and optical terminal equipment composition, PTN device connects optical transmission device, optical transmission device connects optical terminal equipment, and optical transmission device comprises PTN module, ODN module and OLT module, wherein this PTN module is used for converging and transparent transmission process data, this ODN module is for accessing this optical terminal equipment, this OLT module is used for the exchange process of data, this optical transmission device also comprises the first interface towards this optical terminal equipment, this first interface is made up of host interface module and spare interface module, wherein this host interface module is wired interface module, and this spare interface module is radio interface module.Described wired interface module is used for wired connection optical terminal equipment; Described radio interface module is used for wireless connections optical terminal equipment; When described main interface breaks down when transfer of data, start spare interface by out of band network management configuration.
The embodiment of the masterslave switchover of heterogeneous network:
As shown in Figure 6, between optical terminal equipment and PTN device, there is active link and protection link (solid line is active link, and dotted line is protection link).Between optical terminal equipment and optical transmission device, active link is fiber optic network, and protection link is wireless network.
Break down if connect on A-B direction in work, as shown in Figure 7, then this fault will detect at node A, be configured by out of band network management, and node A selector bridge joint is switched and connected to protection, realizes the masterslave switchover improving fiber optic cable plant port.Because wireless bandwidth is far smaller than the bandwidth of optical-fiber network, therefore only there is important business to be switched and connect to protection, namely only have important business to transmit in the wireless network.
Claims (1)
1. an industrial-grade optical transmission system, comprise the PTN device of main website side, optical transmission device and optical terminal equipment composition, described PTN device connects optical transmission device, optical transmission device connects optical terminal equipment, and described optical transmission device comprises PTN module, ODN module and OLT module, wherein this PTN module is used for converging and transparent transmission process data, this ODN module is for accessing this optical terminal equipment, this OLT module is used for the exchange process of data, it is characterized in that: described optical transmission device also comprises the first interface towards this optical terminal equipment, this first interface is made up of host interface module and spare interface module, wherein this host interface module is wired interface module, and this spare interface module is radio interface module,
Described wired interface module is used for wired connection optical terminal equipment;
Described radio interface module is used for wireless connections optical terminal equipment;
When described main interface breaks down when transfer of data, start spare interface by out of band network management configuration;
Described optical transmission device also comprises clock synchronization module, for realizing the clock synchronous of industrial-grade optical transmission system:
Clock synchronization module in described optical transmission device is used for carrying out clock information with PTN device alternately, and from PTN device, extract the clock information of at least one main website;
Clock synchronization module in described optical transmission device also for the treatment of corresponding main website clock information and send to optical terminal equipment, be directly transmitted to user side by this optical terminal equipment, the concrete steps realizing the clock synchronous of industrial-grade optical transmission system are:
First step optical transmission device, to the clock synchronous between PTN device, first, sends Sync message by PTN device to optical transmission device, and records the time T left of this message
1, then optical transmission device have received this Sync message, and records this message T time of advent
2, and then will with T by PTN device
1the timestamp of information is beaten on Follow_Up message, and sends to optical transmission device, and now optical transmission device sends Delay_Req message to PTN device, and optical transmission device records the time T that this message leaves website
3, PTN device receives this message subsequently, and records the time T of Delay_Req message arrival
4, and by T
4beat inside Delay_Resp message, and send to optical transmission device, now, having shaken hands between optical transmission device and PTN device, optical transmission device has T
1, T
2, T
3, T
4the information in these 4 moment, if the propagation delay time between PTN device and optical transmission device is T
ms, the propagation delay time between optical transmission device and PTN device is T
sm, the time of the advanced PTN device clock of optical transmission device clock is T
offset, then can obtain following expression formula:
T
ms＝T
2-T
1-T
offset
T
sm＝T
4-T
3+T
offset
Supposing that the time delay of the transmitted in both directions of link is consistent, is namely T
sm=T
ms=T
path, then can obtain
T
path＝0.5*(T
sm+T
ms)＝0.5*(T
2+T
4-T
1-T
3)
PTN device extracts the clock information of main website, and be located at some moment, the clock information of PTN device is T
p1, it is T that PTN device obtains main website 1 time information now
m1, main website 2 time information is at this moment T
m2, suppose in PTN device at T
p2time the time information of main website is sent to optical transmission device, the moment receiving this information is recorded by optical transmission device, is T
oLT1, then, when optical transmission device receives these clock informations, the time information of main website 1 should be
T
M1′＝T
M1+(T
P2-T
P1)+T
path
The time information of main website 2 should be
T
M2′＝T
M2+(T
P2-T
P1)+T
path
Second step is that the clock information of main website is passed to optical terminal equipment, and optical transmission device periodically sends Sync frame to optical terminal equipment, wherein leaves the time T of optical transmission device containing this frame
oLT2, the propagation delay time simultaneously between optical transmission device and optical terminal equipment is known, makes the propagation delay time between optical transmission device and optical terminal equipment _ 1 be T
d1, the propagation delay time between optical transmission device and optical terminal equipment _ 2 is T
d2, then the temporal information mail in the Sync frame of optical terminal equipment _ 1 is when estimating that this frame arrives optical terminal equipment _ 1, the clock of main website
T″
M1＝T
M1′+(T
OLT2-T
OLT1)+T
d1
＝T
M1+(T
P2-T
P1)+T
path+(T
OLT2-T
OLT1)+T
d1
The main website moment when temporal information mail in the Sync frame of optical terminal equipment _ 2 is this frame arrival optical terminal equipment _ 2
T″
M2＝T
M2′+(T
OLT2-T
OLT1)+T
d2
＝T
M2+(T
P2-T
P1)+T
path+(T
OLT2-T
OLT1)+T
d2
After optical terminal equipment receives the Sync frame that optical transmission device sends, any process is not done to it, directly this Sync frame is transmitted to user side, achieves the polyphyly of time synchronized, synchronous with EPON network.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110452510.9A CN102523067B (en) | 2011-12-30 | 2011-12-30 | Industrial-grade optical transmission system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110452510.9A CN102523067B (en) | 2011-12-30 | 2011-12-30 | Industrial-grade optical transmission system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102523067A CN102523067A (en) | 2012-06-27 |
| CN102523067B true CN102523067B (en) | 2015-04-15 |
Family
ID=46293876
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110452510.9A Active CN102523067B (en) | 2011-12-30 | 2011-12-30 | Industrial-grade optical transmission system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102523067B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102694596B (en) * | 2012-06-28 | 2014-11-05 | 武汉虹信通信技术有限责任公司 | Method for transmitting wireless signal by using FTTH (Fiber To The Home) system |
| CN102761407A (en) * | 2012-07-16 | 2012-10-31 | 中兴通讯股份有限公司 | Machine frame straddling system and implementation method and device of time and frequency passthrough thereof |
| CN106301648B (en) * | 2015-06-29 | 2018-10-09 | 华为技术有限公司 | Clock synchronizer controller, the method and system for determining clock synchronization link |
| CN108616308A (en) * | 2018-05-15 | 2018-10-02 | 国网黑龙江省电力有限公司哈尔滨供电公司 | Automatization terminal communication device based on optical-fibre communications and wireless private network technological incorporation |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101800915A (en) * | 2009-12-30 | 2010-08-11 | 国网信息通信有限公司 | Substation, terminal and system for collecting information of electricity consumption |
| CN101827098A (en) * | 2010-03-31 | 2010-09-08 | 中兴通讯股份有限公司 | Processing method and device for time synchronization |
| CN101980461A (en) * | 2010-11-12 | 2011-02-23 | 安徽省电力公司信息通信分公司 | Extra-long station spacing emergency communication method of electric power optical transmission network |
| CN201937332U (en) * | 2010-11-26 | 2011-08-17 | 河南省电力勘测设计院 | Intelligent-substation communication-network framework based on distributed passive optical-network technology |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1176765A1 (en) * | 2000-07-24 | 2002-01-30 | Lucent Technologies Inc. | Method and system for providing end-to-end protection in point-to-multipoint access networks |
| US9185555B2 (en) * | 2010-04-22 | 2015-11-10 | Futurewei Technologies, Inc. | Method for authentication of a wireless backup system for an optical network unit |
| CN201830258U (en) * | 2010-05-19 | 2011-05-11 | 大唐移动通信设备有限公司 | Time-signal transmission system and equipment |
| CN101908965B (en) * | 2010-08-28 | 2012-11-07 | 华为技术有限公司 | Optical network unit, telephone system and corresponding call response method |
-
2011
- 2011-12-30 CN CN201110452510.9A patent/CN102523067B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101800915A (en) * | 2009-12-30 | 2010-08-11 | 国网信息通信有限公司 | Substation, terminal and system for collecting information of electricity consumption |
| CN101827098A (en) * | 2010-03-31 | 2010-09-08 | 中兴通讯股份有限公司 | Processing method and device for time synchronization |
| CN101980461A (en) * | 2010-11-12 | 2011-02-23 | 安徽省电力公司信息通信分公司 | Extra-long station spacing emergency communication method of electric power optical transmission network |
| CN201937332U (en) * | 2010-11-26 | 2011-08-17 | 河南省电力勘测设计院 | Intelligent-substation communication-network framework based on distributed passive optical-network technology |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102523067A (en) | 2012-06-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP4774391B2 (en) | Optical transmission system and signal speed converter | |
| JP4835422B2 (en) | Network device and communication system | |
| US9112612B2 (en) | Relay device, station-side optical communication device, communication system, and bandwidth allocation method | |
| JP4913865B2 (en) | Optical communication network system, master station optical communication device, optical communication method and communication program | |
| CN103715766B (en) | A kind of looped network decentralized bus protection synchronous method | |
| CN102523067B (en) | Industrial-grade optical transmission system | |
| CN101640815B (en) | Remote transmission method, remote transmission device and remote transmission system for PON | |
| CN104125518A (en) | Method for realizing data message transmission in transformer substation through passive optical network | |
| CN102682586A (en) | Transmission line state monitoring communication system | |
| CN104025511A (en) | Service protection method, optical line terminal and system in passive optical network | |
| CN103441959B (en) | The real-time multi-service data multiplex communication network of power system | |
| CN103986984A (en) | Access node device and system based on gigabit-Ethernet passive optical network | |
| CN103795518A (en) | Method, device, and system for synchronizing port modes between devices | |
| CN103957477B (en) | A kind of light exchange method and network towards electrical network business | |
| CN102388594B (en) | Method, device and system for data transmission | |
| CN206728037U (en) | It is a kind of can disaster tolerance conference system | |
| CN105451272A (en) | Data interaction method, building baseband unit, radio remote unit and R-Hub | |
| CN202713353U (en) | Packet transport network device | |
| CN102624561A (en) | Management information (CDMM) packaging method based on IEEE (Institute of Electrical and Electronic Engineers) OAM (Operation Administration and Maintenance), C-DOCSIS (Data Over Cable Service Interface Specification) radio frequency interface module and system control module | |
| CN110446275A (en) | A kind of method, terminal and the system of E1 point-to-point communication | |
| CN106101874A (en) | Way system method for designing in a kind of ocean platform based on EPON | |
| CN113949718B (en) | E1 and IP hybrid bearer-based power private network scheduling and number-placing system and method | |
| WO2017097020A1 (en) | Passive optical network compatible device and implementation method therefor, and optical line terminal | |
| CN204465570U (en) | The gigabit smart transceiver equipment that a kind of local terminal far-end can manage simultaneously | |
| CN102546328B (en) | Industrial terminal equipment supporting hybrid networking |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| ASS | Succession or assignment of patent right |
Owner name: STATE GRID CORPORATION OF CHINA Effective date: 20121212 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20121212 Address after: 401123 office complex, No. 80 Middle Road, Mount Huangshan Road, North New District, Jiangbei District, Chongqing Applicant after: Chongqing Electric Power Corp., China Electric Power Research Institute Applicant after: State Grid Corporation of China Address before: 401123 office complex, No. 80 Middle Road, Mount Huangshan Road, North New District, Jiangbei District, Chongqing Applicant before: Chongqing Electric Power Corp., China Electric Power Research Institute |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |