CN103973530A - Catching technology based information interaction bus data reliable-transmission method - Google Patents
Catching technology based information interaction bus data reliable-transmission method Download PDFInfo
- Publication number
- CN103973530A CN103973530A CN201410015453.1A CN201410015453A CN103973530A CN 103973530 A CN103973530 A CN 103973530A CN 201410015453 A CN201410015453 A CN 201410015453A CN 103973530 A CN103973530 A CN 103973530A
- Authority
- CN
- China
- Prior art keywords
- packet
- transmission method
- information interactive
- data
- interactive bus
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 45
- 238000005516 engineering process Methods 0.000 title claims abstract description 15
- 230000003993 interaction Effects 0.000 title abstract description 8
- 230000005540 biological transmission Effects 0.000 claims abstract description 51
- 238000002955 isolation Methods 0.000 claims abstract description 32
- 230000008569 process Effects 0.000 claims abstract description 12
- 238000004806 packaging method and process Methods 0.000 claims abstract description 6
- 230000002452 interceptive effect Effects 0.000 claims description 51
- 238000007726 management method Methods 0.000 claims description 10
- 238000004519 manufacturing process Methods 0.000 claims description 8
- 238000012546 transfer Methods 0.000 description 10
- 238000005538 encapsulation Methods 0.000 description 7
- 238000004891 communication Methods 0.000 description 6
- 230000007246 mechanism Effects 0.000 description 4
- 230000004888 barrier function Effects 0.000 description 3
- FFBHFFJDDLITSX-UHFFFAOYSA-N benzyl N-[2-hydroxy-4-(3-oxomorpholin-4-yl)phenyl]carbamate Chemical compound OC1=C(NC(=O)OCC2=CC=CC=C2)C=CC(=C1)N1CCOCC1=O FFBHFFJDDLITSX-UHFFFAOYSA-N 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- 238000012795 verification Methods 0.000 description 3
- 238000013524 data verification Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000012163 sequencing technique Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000012549 training Methods 0.000 description 1
Landscapes
- Data Exchanges In Wide-Area Networks (AREA)
Abstract
The invention discloses a catching technology based information interaction bus data reliable-transmission method. The caching technology based information interaction bus data reliable-transmission method includes steps of receiving original data by a transmission end in an information interaction bus, packaging the original data and forming data packets; caching the data packets and transmitting to the receiving end of the information interaction bus; after the receiving end receives the data packets, subjecting the data packets to packaging and information analysis, judging continuity and integrity of the data packets and transmitting commands to control equipment; and controlling by the control equipment according to the commands. By means of the caching technology based information interaction bus data reliable-transmission method, the problem that information interaction buses are easy to lose in the process of data transmission crossing physical isolation equipment can be solved, transmission obstacles caused by the physical isolation equipment and the network environment and the like are overcome within a certain range, and internal data transmission of the power secondary system is kept safe, stable and efficient.
Description
Technical field
The present invention relates to a kind of data transmission method, particularly a kind of information interactive bus reliable data transmission method based on caching technology, belongs to power system dispatching technical field.
Background technology
Be directly involved in the closed-loop control of electrical network for the electrical secondary system of power system dispatching, be related to safety, the stable operation of electrical network.In recent years, along with the development of computer and communications industry, grid computing technology is used widely in electric power secondary system, promoted between system interconnected, increased the convenience that uses, promoted sharing and making full use of of information.But, prior art is considered to such an extent that be more the interconnecting property of system, convenience and the friendly of operation and maintenance, and aspect security of system, consider not enough, therefore there is more security breaches and hidden danger, increase the possibility that electrical secondary system is attacked, destroys, invaded, brought serious safety problem.Current, the business that electric power system is carried out on the net and application are more and more, require the exchanges data of carrying out between operation system also to get more and more, and this fail safe, reliability, real-time to power system network has proposed new severe challenge.The safety and reliability of power system network has become a very urgent problem.
Based on the demand for security of electric power system, dispatch automated system is divided into 4 protection zones, respectively: I district (real time control area) comprises dispatch automated system (SCADA/EMS), electrical power distribution automatization system, electric substation automation system, power plant automatic monitored control system etc., it is most important part in electric power secondary system, safe class is the highest, is emphasis and the core of security protection; II district (non-production control district) comprises dispatcher's training simulation system (DTS), relay protection and fault record ripple information management system, electric energy metering system, wholesale electricity transaction system etc.; III district (production management district) is mainly the required information management system of electrical production, as dispatching production management system (DMIS), statistical form system (daily paper, ten days report, monthly magazine, annual report), lightning monitoring system, weather information access etc.; IV district (management information area) comprises management information system (MIS), the office automation system (OA), customer service etc.
In the prior art, I district connects by physical isolation equipment between YuⅢ district, makes information interaction produce certain obstacle, and produces bulk information isolated island along with increasing gradually of subsystems, makes communication not smooth.This physical isolation equipment is divided into positive physical xegregating unit and reverse physical isolation equipment, is deployed in I district and III interval, and I district is carried out to security protection.
Under such background, information interactive bus arises at the historic moment.It makes transfer of data, it is convenient to serve integrated work, makes can realize transparent access, transmitting between service.At present, processing the data transmission of crossing over physical isolation equipment, generally adopt information interactive bus to complete, information interactive bus is at cross-domain physical isolation equipment, while realizing transregional transmission data, can be because the complicated reason such as network environment, signal shielding causes communication not smooth, cause data can produce data packet transmission in the process through physical isolation device transmission imperfect, the situation of packet loss even easily occurs, final result shows as external system and receives data exception.At present, the abnormality processing also imperfection of information interactive bus after for packet loss detection and packet loss.Therefore, how to guarantee data security, efficiently, stable transfer becomes information interactive bus technology key issue urgently to be resolved hurrily.
Summary of the invention
For the deficiencies in the prior art, technical problem to be solved by this invention is to provide a kind of information interactive bus reliable data transmission method based on caching technology.
For realizing above-mentioned goal of the invention, the present invention adopts following technical scheme:
An information interactive bus reliable data transmission method based on caching technology, comprises the following steps:
Transmitting terminal in information interactive bus is received initial data, and described initial data is encapsulated, and forms packet;
Described packet is carried out to buffer memory, send to the receiving terminal in information interactive bus;
Described receiving terminal is received after described packet, carries out packaging information parsing, judges continuity and the integrality of described packet, and sends instruction to control appliance;
Described control appliance carries out control operation according to described instruction.
Wherein more preferably, described control operation comprises the packet that continues to receive next packet, packet discard or reissue buffer memory.
Wherein more preferably, described transmitting terminal and described receiving terminal lay respectively at real time control area and the production management district of dispatch automated system, and described packet is crossed over positive physical xegregating unit in transmitting procedure.
Wherein more preferably, in the time crossing over positive physical xegregating unit, described packet adopts memory cache mode.
Or described transmitting terminal and described receiving terminal lay respectively at production management district and the real time control area of dispatch automated system, described packet is crossed over reverse physical isolation equipment in transmitting procedure.
Wherein more preferably, in the time crossing over reverse physical isolation equipment, described packet adopts file cache mode.
Wherein more preferably, the mode that described packet adopts circulation to cover in process of caching, and adopt Hash table mode to store.
Utilize the present invention, can solve the problem of information interactive bus easy packet loss in the data transmission procedure of crossing over physical isolation equipment, solve within the specific limits the transmission obstacle causing due to physical isolation equipment, network environment etc., guaranteed the safe, stable, efficient of electric power secondary system internal data transfer process.
Brief description of the drawings
Fig. 1 is the general frame schematic diagram of information interactive bus;
Fig. 2 is the overall flow figure of information interactive bus reliable data transmission method provided by the present invention;
Fig. 3 is in the present invention, the storage organization schematic diagram of memory cache;
Fig. 4 is in the present invention, the form schematic diagram of packet;
Fig. 5 is in the present invention, the schematic flow sheet of data receiver and data verification.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
In the present invention; information interactive bus is separately positioned in different protection zones; mainly solve the communication barrier causing due to physical isolation equipment, be convenient to the information that realizes integrated and across the information transmission between YuⅢ district of I district, make the external service can transparent transmission.
The general frame of this information interactive bus as shown in Figure 1.Wherein, Socket client, Socket service end are respectively information interactive bus and set up client and the service end while transmission.Information interactive bus sends information by the Socket client that is positioned at I district to the Socket service end that is positioned at III district, and intermediate demand is crossed over positive physical xegregating unit, and the information interactive bus of opposite end receives the information from this Socket service end.The information interactive bus that is positioned at opposite end sends information by the text transmitting terminal that is positioned at III district to the text receiving terminal that is positioned at I district, and centre also needs to cross over reverse physical isolation equipment.Information interactive bus receives the information from text receiving terminal.Wherein, positive physical xegregating unit adopts TCP mode to carry out transfer of data, and oppositely physical isolation equipment adopts text mode to carry out transfer of data.
In view of the physical characteristic that reverse physical isolation equipment adopts text mode to transmit, information interactive bus is write message as text in bit (byte) mode, by reverse physical isolation equipment, text file YouⅢ district is sent to I district.In the process of transmission, due to the many factors such as network environment, signal shielding, cause in transmitting procedure easily producing the situation of packet loss, caused the communication barrier, thus ensure packet complete, high efficiency of transmission is particularly important.
As shown in Figure 2, the information interactive bus reliable data transmission method based on caching technology provided by the present invention mainly comprises the steps: that the transmitting terminal of information interactive bus receives initial data, encapsulates and forms packet; Packet after above-mentioned encapsulation is carried out to buffer memory, send to opposite end (being the receiving terminal of information interactive bus), above-mentioned receiving terminal receives that packet carries out packaging information parsing, judges connectivity and the integrality of packet, and sends instruction to control appliance; Above-mentioned control appliance carries out control operation according to instruction.In above-mentioned data transmission procedure, the technology contents of core comprises packet loss detection and detecting that the message bag after packet loss reissues mechanism, will have hereinafter further instruction.
For avoiding because physical isolation device transmission produces the communication barrier that packet loss causes, the present invention adopts cache way, data is carried out to the preservation of certain hour.The Bale No. that information interactive bus receives packet is natural number flow shop sequencing, and by this Bale No., the receiving terminal of information interactive bus can complete the continuity check of data.In the time crossing over physical isolation equipment, produce packet loss if information interactive bus inside detects, transmitting terminal carries out packet by the packet that utilizes buffer memory and reissues, thereby in safety, the high efficiency of transmission of information interactive bus inside ensuring packet.
In the present invention, cache way is divided into file cache and memory cache.Wherein, file cache is to store data in file, and this file is stored on disk space, and after power-off, data can not be lost, and is permanent and stable cache way.Memory cache is that data are stored in server memory with certain data format, and efficiency of transmission is high, but in the time that server is restarted, and the data of this mode institute buffer memory will be lost.
In view of adopting TCP mode, positive physical xegregating unit carries out the feature of transfer of data, the present invention stores by memory cache mode the data acquisition of forward transmission, facilitate directly reading information generated data flow transmission from internal memory of program, thereby be conducive to improving data transmission efficiency.Carry out the feature of transfer of data in view of reverse physical isolation equipment adopts text mode, the present invention stores with file cache mode the data acquisition of reverse transfer, can be in the time of generation packet loss, reissue rapidly the packet of loss.Owing to only file being operated, do not need to repeat again complicated data encapsulation work, be conducive to improve the efficiency of transfer of data.
In the process of memory cache and file cache, for avoiding causing memory headroom to overflow because buffer data size is excessive or the situation such as Insufficient disk space occurs, ensureing under data cached abundance, effective prerequisite, the mode that adopts circulation to cover to above-mentioned two kinds of cache way, give tacit consent to the Bale No. of data cached bag since 0, arrive set point and finish.In the time that Bale No. reaches set point, packet is below again since 0.The mode that adopts circulation to cover has effectively been avoided the excessive and program exception problem that causes of buffer memory.
As shown in Figure 3, in one embodiment of the invention, memory cache adopts Hash table (Hash Map) mode to store, and wherein key is Bale No., and value is the packet after encapsulation, in the time that packet key value stores 999 into, owing to adopting circulation coverage mode, it is 001 that key forces filing, in view of the storage mode of Hash table, key value covers legacy data when identical, has reached the object that circulation covers.The memory mechanism of file cache, cover principle and memory cache basic identical, its difference is mainly the storage of file cache and covers in the disk space of hard disk to complete.
Method provided by the present invention is tried out in certain power distribution automation project.In the time of electrical network on-the-spot test, the default maximum that a large amount of buffer memory data are presented at Bale No. is arranged at 999 o'clock and can substantially meets business demand.And, occur after packet loss at information interactive bus, when transmitting terminal need to be reissued lost packet, in data cached, search the required shortest time of query hit target in the process of corresponding data bag, pretend as the preferred embodiments of the present invention, the default maximum of setting Bale No. is 999.
Information interactive bus, when by physical isolation equipment transmission data, need to ensure the continuity of data at the data integrity after physical isolation equipment and transmission packet.Because the process of information interactive bus transmission data is based on Transmission Control Protocol, adopt the mode of byte to transmit data, for convenience of continuity and the integrality of check data in transmitting procedure, need to carry out certain encapsulation work to the initial data receiving, comprise encapsulation header, encapsulation telegram end and other attribute informations, add respectively self-defined byte at head and the afterbody of initial data.For avoiding added head and afterbody byte and initial data to duplicate, therefore adopt two self-defined bytes, to increase reliability.On the other hand, the information interactive bus of opposite end, need to be according to the packaging information of resolved packet in the time receiving packet, completes integrality and the continuity verification of packet.
In one embodiment of the invention, the form of packet as shown in Figure 4.Wherein, FirstHead and SecondHead are the header of the inner encapsulation of information interactive bus, SecondTail and FirstTail are its telegram end, and messageInfo is the external data bag that information interactive bus receives, and MessageLength is the length value of MessageInfo data.
The continuity verification of information interactive bus is to realize on the basis of packet integrity verification.After confirming that packet is complete, whether decision data bag Bale No. is continuous.Receive after current data packet correct, the next packet numbers that needs reception is set, continue afterwards to receive follow-up data bag.Concrete data receiver and data verification flow process are as shown in Figure 5.
Referring to Fig. 5, Socket service end receives a byte (flow process 1), first judges whether FirstHead value is 0x05, if not, abandon this byte and return to previous step, this service end continues to receive next byte; If so, service end continues to receive next byte, further judges whether SecondHead value is 0x64, if not, service end abandons this byte and returns to previous step, continues to receive next byte, if so, receive MessageLength value, according to length value receipt message body, and receive follow-up two bytes, follow-up two bytes are determined whether to message telegram end, if not, abandon the first two byte, repeat flow process 1, if so, message bag finishes receiving; Finish receiving and rear Bale No. continuity is detected, if Bale No. is discontinuous, trigger data bag is reissued mechanism, reissues corresponding packet; If continuously, service end repeats flow process 1, receives next packet., Socket service end, by header byte and afterbody byte, ensures that according to the length of message body it receives the integrality of data.
Because the transmittability of reverse physical isolation equipment is limited, when by reverse physical isolation device transmission file, if quantity is many, may produce a large amount of of file overstocks, cause transfer of data obstacle, so need the size of the mutual bus spanned file of control information and quantity to limit with the transmission performance that meets reverse physical isolation equipment.
In server memory and hard-disk capacity, limited in the situation that, the size of file has determined the quantity of file.Method provided by the present invention is carried out in process on probation in certain power distribution automation project, if not control documents size, per minutely will generate the file of 80 left and right, and oppositely the ability of physical isolation device transmission file is approximately 40 per minute, overstocks therefore produced file.Inventor, by on-the-spot great many of experiments test, finds file size to be controlled in 2k bit, and file generated set of time is that 2 milliseconds (time one arrives, and file size does not reach the same spanned file of 2k bit) are the most reasonable.At this moment, per minute by 10 of spanned files, meet the transmission performance restriction of reverse physical isolation equipment.In other application scenario, concrete file size, time-out time also can be tested acquisition as the case may be.
For the problem of information interactive bus easy packet loss in the data transmission procedure of crossing over physical isolation equipment, the present invention proposes and a series ofly prevent packet loss and occurring utilizing caching mechanism to reissue the technical measures of data after packet loss, solve within the specific limits the transmission obstacle causing due to physical isolation equipment, network environment etc., realized safe, stable, the high efficiency of transmission of information interactive bus in the time crossing over physical isolation equipment.
Above the information interactive bus reliable data transmission method based on caching technology provided by the present invention is had been described in detail.For the technical staff in general field, any apparent change of under the prerequisite that does not deviate from connotation of the present invention, it being done, all will form infringement of patent right of the present invention, will bear corresponding legal liabilities.
Claims (10)
1. the information interactive bus reliable data transmission method based on caching technology, is characterized in that comprising the following steps:
Transmitting terminal in information interactive bus is received initial data, and described initial data is encapsulated, and forms packet;
Described packet is carried out to buffer memory, send to the receiving terminal in information interactive bus;
Described receiving terminal is received after described packet, carries out packaging information parsing, judges continuity and the integrality of described packet, and sends instruction to control appliance;
Described control appliance carries out control operation according to described instruction.
2. information interactive bus reliable data transmission method as claimed in claim 1, is characterized in that:
Described control operation comprises the packet that continues to receive next packet, packet discard or reissue buffer memory.
3. information interactive bus reliable data transmission method as claimed in claim 1, is characterized in that:
Described transmitting terminal and described receiving terminal lay respectively at real time control area and the production management district of dispatch automated system, and described packet is crossed over positive physical xegregating unit in transmitting procedure.
4. information interactive bus reliable data transmission method as claimed in claim 3, is characterized in that:
In the time crossing over positive physical xegregating unit, described packet adopts memory cache mode.
5. information interactive bus reliable data transmission method as claimed in claim 1, is characterized in that:
Described transmitting terminal and described receiving terminal lay respectively at production management district and the real time control area of dispatch automated system, and described packet is crossed over reverse physical isolation equipment in transmitting procedure.
6. information interactive bus reliable data transmission method as claimed in claim 5, is characterized in that:
In the time crossing over reverse physical isolation equipment, described packet adopts file cache mode.
7. information interactive bus reliable data transmission method as claimed in claim 6, is characterized in that:
File size is in 2k bit, and the file generated time is 2 milliseconds.
8. the information interactive bus reliable data transmission method as described in claim 4 or 6, is characterized in that:
The mode that described packet adopts circulation to cover in process of caching.
9. the information interactive bus reliable data transmission method as described in claim 4 or 6, is characterized in that:
Described packet adopts Hash table mode to store in process of caching.
10. information interactive bus reliable data transmission method as claimed in claim 1, is characterized in that:
The Bale No. maximum of described packet is 999.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410015453.1A CN103973530A (en) | 2014-01-14 | 2014-01-14 | Catching technology based information interaction bus data reliable-transmission method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410015453.1A CN103973530A (en) | 2014-01-14 | 2014-01-14 | Catching technology based information interaction bus data reliable-transmission method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103973530A true CN103973530A (en) | 2014-08-06 |
Family
ID=51242596
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410015453.1A Pending CN103973530A (en) | 2014-01-14 | 2014-01-14 | Catching technology based information interaction bus data reliable-transmission method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103973530A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108347476A (en) * | 2018-01-22 | 2018-07-31 | 广东欧珀移动通信有限公司 | Across computer room method of data synchronization, device and server |
| CN111917451A (en) * | 2020-07-10 | 2020-11-10 | 华力智芯(成都)集成电路有限公司 | Data transmission method and device, satellite module and storage medium |
| CN112003683A (en) * | 2020-10-29 | 2020-11-27 | 北京安盟信息技术股份有限公司 | Reliability control method and system based on unidirectional optical transmission |
| CN113515866A (en) * | 2021-07-27 | 2021-10-19 | 南京国电南自电网自动化有限公司 | Modeling method and device of relay protection device |
| CN115150372A (en) * | 2021-03-31 | 2022-10-04 | 海能达通信股份有限公司 | Method, communication system and terminal for preventing voice loss in call |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101404657A (en) * | 2008-10-30 | 2009-04-08 | 广州慧扬科技投资有限公司 | File integrality checking method for network storage system based on iSCSI protocol |
| CN101834796A (en) * | 2010-05-06 | 2010-09-15 | 中兴通讯股份有限公司 | Double-controller communication system and method |
| CN102571635A (en) * | 2012-01-18 | 2012-07-11 | 浪潮(北京)电子信息产业有限公司 | Message transmission method and equipment |
| CN103023740A (en) * | 2012-12-28 | 2013-04-03 | 宁波电业局 | Information interaction bus system and electric power data transmission method |
-
2014
- 2014-01-14 CN CN201410015453.1A patent/CN103973530A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101404657A (en) * | 2008-10-30 | 2009-04-08 | 广州慧扬科技投资有限公司 | File integrality checking method for network storage system based on iSCSI protocol |
| CN101834796A (en) * | 2010-05-06 | 2010-09-15 | 中兴通讯股份有限公司 | Double-controller communication system and method |
| CN102571635A (en) * | 2012-01-18 | 2012-07-11 | 浪潮(北京)电子信息产业有限公司 | Message transmission method and equipment |
| CN103023740A (en) * | 2012-12-28 | 2013-04-03 | 宁波电业局 | Information interaction bus system and electric power data transmission method |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108347476A (en) * | 2018-01-22 | 2018-07-31 | 广东欧珀移动通信有限公司 | Across computer room method of data synchronization, device and server |
| CN108347476B (en) * | 2018-01-22 | 2020-01-14 | Oppo广东移动通信有限公司 | Cross-machine-room data synchronization method and device and server |
| CN111917451A (en) * | 2020-07-10 | 2020-11-10 | 华力智芯(成都)集成电路有限公司 | Data transmission method and device, satellite module and storage medium |
| CN112003683A (en) * | 2020-10-29 | 2020-11-27 | 北京安盟信息技术股份有限公司 | Reliability control method and system based on unidirectional optical transmission |
| CN112003683B (en) * | 2020-10-29 | 2021-02-19 | 北京安盟信息技术股份有限公司 | Reliability control method and system based on unidirectional optical transmission |
| CN115150372A (en) * | 2021-03-31 | 2022-10-04 | 海能达通信股份有限公司 | Method, communication system and terminal for preventing voice loss in call |
| CN115150372B (en) * | 2021-03-31 | 2024-03-15 | 海能达通信股份有限公司 | Method for preventing voice loss in call, communication system and terminal |
| CN113515866A (en) * | 2021-07-27 | 2021-10-19 | 南京国电南自电网自动化有限公司 | Modeling method and device of relay protection device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104362757B (en) | Transformer substation on-line monitoring system based on IEC61850 | |
| CN105093033A (en) | Power grid multi-source information-based fault integrated analysis system and analysis method | |
| KR101659113B1 (en) | System for clouding service provide of power system | |
| CN104201774A (en) | Method for integrating status monitoring system of primary and secondary power equipment | |
| CN110071577A (en) | Supervisory control of substation information acceptance method and system | |
| CN103414251A (en) | Substation network communication simulation system based on IEC 61850 | |
| CN102868552B (en) | Data transmission method for uplink | |
| CN103973530A (en) | Catching technology based information interaction bus data reliable-transmission method | |
| CN102810243A (en) | Power utilization information collection method and system based on technology of Beidou satellite navigation system | |
| CN104378439A (en) | System and method for achieving real-time transmission of transformer substation device information based on shared memory | |
| CN108400589B (en) | Cloud power natural gas ecosystem based on graphene | |
| CN103647805B (en) | Current conversion station fault recording system is to the data cut-in method of IEC61850 failure wave-recording main website | |
| CN104574909A (en) | Acquirer for remote meter reading and remote meter reading system | |
| CN104535893B (en) | A kind of electric network fault processing unit and its processing method based on finely granular access control | |
| CN103676669B (en) | The check method of a kind of telecontrol information and nucleus correcting system | |
| CN103545933A (en) | Instation I/O interface protocol of intelligent substation online monitoring system | |
| CN102497028B (en) | Method and system for intelligently recognizing relay protection failure based on protection event trigger | |
| CN104318394B (en) | Communication processor intelligent warning system and method based on more action alert modes | |
| CN203573483U (en) | Wireless acquisition device with multifunctional acquisition and control capacity | |
| CN205092883U (en) | Intelligent charging pile | |
| CN107733085A (en) | A kind of generation method of intelligent substation prudential sub-station Trouble Report and its substation | |
| CN201697992U (en) | Extra-high voltage power transmission line one-phase grounding trip and lightning stroke positioning surveillance system | |
| CN107425600A (en) | One kind power supply distribution transformer monitoring system | |
| CN202014266U (en) | Electric power scheduling system | |
| CN202475781U (en) | Mine intrinsic safe wireless switch |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140806 |
|
| RJ01 | Rejection of invention patent application after publication |