CN105404255A - Data synchronization method for industrial data network - Google Patents
Data synchronization method for industrial data network Download PDFInfo
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- CN105404255A CN105404255A CN201510738392.6A CN201510738392A CN105404255A CN 105404255 A CN105404255 A CN 105404255A CN 201510738392 A CN201510738392 A CN 201510738392A CN 105404255 A CN105404255 A CN 105404255A
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- 238000000034 method Methods 0.000 title claims abstract description 38
- 229910052701 rubidium Inorganic materials 0.000 claims description 5
- IGLNJRXAVVLDKE-UHFFFAOYSA-N rubidium atom Chemical compound [Rb] IGLNJRXAVVLDKE-UHFFFAOYSA-N 0.000 claims description 5
- 230000001427 coherent effect Effects 0.000 abstract 1
- 230000001360 synchronised effect Effects 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 7
- 238000012163 sequencing technique Methods 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 2
- 238000007405 data analysis Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012098 association analyses Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/418—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM]
- G05B19/4185—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM] characterised by the network communication
- G05B19/41855—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM] characterised by the network communication by local area network [LAN], network structure
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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- General Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Quality & Reliability (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Synchronisation In Digital Transmission Systems (AREA)
- Computer And Data Communications (AREA)
Abstract
The invention provides a data synchronization method for an industrial data network. The data synchronization method comprises the steps that the industrial data network is divided into multiple clock domains, and synchronous time service is performed on all the network elements in the industrial data network, wherein each clock domain at least comprises one network element; a time zone stamp is arranged for each clock domain, and the time zone stamps of any two clock domains are different; data packets uploaded by the network elements are received and analyzed, and the data packets include the corresponding time zone stamps of the clock domains in which the network elements are positioned, industrial data and occurrence time of the industrial data; whether occurrence time of any two network elements is the same is judged; whether the time zone stamps of any two network elements are the same is judged if occurrence time of any two network elements is the same; and data conflict processing is performed if the time zone stamps of any two network elements are the same. With application of the mode, occurrence time of the industrial data of the industrial data network can be ensured to be strictly coherent.
Description
Technical field
The present invention relates to technical field of data processing, particularly relate to a kind of method of data synchronization of industrial data net.
Background technology
In emerging intelligence manufacture field, build digital factory be current most important task, and in digital factory the most the part of core be industrial data center.In the process of construction of digital factory, need the industrial data of links to carry out collecting and arranging, and be saved in industrial data center.
But, because the data volume of industrial data is rather huge, when industrial data is accumulated to a certain degree time, need data to carry out alternate analysis and association analysis, to extract valuable information for user.But in actual applications, there is a very stubborn problem, that is exactly the time of origin not stringent synchronization of the data between links, in other words not strictly relevant (Coherence).Such as production schedule data are that certain day 10:32 occurs, its production planning and sequencing data theory should be later than this time, but may be not identical due to the system time of the production schedule and production planning and sequencing stage reference separately, cause the time of origin of production planning and sequencing data early than the time of origin of production schedule data, thus there will be logic error when follow-up data processing and analysis, and this absolutely not allows to occur.
Summary of the invention
The technical matters that the present invention mainly solves is to provide a kind of method of data synchronization of industrial data net, can ensure that the time of origin of the industrial data of industrial data net is strictly concerned with.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is: the method for data synchronization providing a kind of industrial data net, comprise: industrial data net is divided into multiple clock area, and sync identification is carried out to all network elements in described industrial data net, wherein, clock area described in each at least comprises a network element; Be respectively clock area described in each and arrange time zone stamp, wherein, the time zone stamp of any two clock area is not identical; Receive and resolve the packet that described network element uploads, wherein, described packet comprises the time of origin of the clock area at described network element place corresponding time zone stamp, industrial data and described industrial data; Judge that whether the time of origin of any two network elements is identical; If the time of origin of described any two network elements is identical, judge whether the time zone stamp of described any two network elements is identical; If the time zone stamp of described any two network elements is identical, then carry out data collision process.
Preferably, the step of described data collision process is specially: store and record the industrial data of described any two network elements; Give up the packet that described any two network elements are uploaded after described time of origin.
Preferably, the step of described data collision process is specially: store and record the industrial data of described any two network elements; Generate conflict warning daily record.
Preferably, described the step that all network elements in described industrial data net carry out sync identification to be comprised: adopt rubidium atomic clock to carry out sync identification to the indoor network element that is in described industrial data net, adopt GPS to carry out sync identification to the outdoor network element that is in described industrial data net.
Preferably, described method of data synchronization also comprises: if the time of origin of described any two network elements is not identical or the time zone of described any two network elements stamp is not identical, then do not carry out data collision process.
Be different from the situation of prior art, the invention has the beneficial effects as follows: by the network element of industrial data net is divided in different clock area, when network element uploads industrial data, whether the industrial data that different network elements distinguished by the time zone stamp utilizing clock area corresponding clashes, and when clashing, carry out data collision process, thus can ensure that the time of origin of the industrial data of industrial data net is strictly concerned with, follow-up data analysis conclusion accurate and effective can be ensured.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of the method for data synchronization of embodiment of the present invention industrial data net.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only a part of embodiment of the present invention, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
See Fig. 1, it is the schematic flow sheet of the method for data synchronization of embodiment of the present invention industrial data net.The method of data synchronization of the industrial data net of the embodiment of the present invention comprises the following steps:
Step S1: industrial data net is divided into multiple clock area, and sync identification is carried out to all network elements in industrial data net, wherein, each clock area at least comprises a network element.
Wherein, industrial data net is made up of multiple network element, and each network element can represent a link.The network element had in industrial data net is apart from each other on geographic position, in order to ensure that the system time of each network element is strictly concerned with, needs to carry out sync identification.In the present embodiment, the step of all network elements in industrial data net being carried out to sync identification comprises: adopt rubidium atomic clock to carry out sync identification to the indoor network element that is in industrial data net, adopts GPS to carry out sync identification to the outdoor network element that is in industrial data net.GPS and rubidium atomic clock are all high steady clocks, and drift is monthly only 5x10
-11second, GPS or rubidium atomic clock generate pulse per second (PPS) (PPS) needed for each network element or system time, thus the time difference in theory between each network element controls at 1x10
-11in magnitude.
Step S2: be respectively each clock area and arrange time zone stamp, wherein, the time zone stamp of any two clock area is not identical.
Wherein, time zone stamp is used for demarcating the clock area residing for network element, such as, industrial data net is divided into 12 clock area, so just has 12 time zone stamps corresponding with it.Arrange time zone stamp, each network element in clock area can obtain this time zone stamp.
Step S3: receive and resolve the packet that network element uploads, wherein, packet comprises the time of origin of the clock area at network element place corresponding time zone stamp, industrial data and industrial data.
Wherein, packet can adopt field format, and time zone stamp and time of origin individually adopt a byte to describe, and remaining word is saved in description industrial data.When after network element uploading data bag, the time of origin of the clock area at network element place corresponding time zone stamp, industrial data and industrial data can be obtained by resolution data bag.
Step S4: judge that whether the time of origin of any two network elements is identical.
Wherein, when receiving the packet that different network elements is uploaded, the time of origin detected in the packet of different network elements is needed whether to conflict.
Step S5: if the time of origin of any two network elements is identical, judges whether the time zone stamp of any two network elements is identical.
Step S6: if the time zone stamp of any two network elements is identical, then carry out data collision process.
Wherein, if time zone stamp is identical, represent that two network elements are in same clock area, but the network element in this clock area represents different links, these links are do not allow conflict in time, therefore, need to carry out data collision process.In one embodiment of the invention, the step of data collision process is specially: store and record the industrial data of any two network elements; Give up the packet that any two network elements are uploaded after time of origin.Wherein, this mode is based on competition mechanism, and the free uploading data bag of any two network elements, first packet is stored and record, and the packet uploaded afterwards can be given up automatically.In another embodiment of the present invention, the step of data collision process is specially: store and record the industrial data of any two network elements; Generate conflict warning daily record.Wherein, conflict warning daily record can be used for examination in follow-up data process with when analyzing.
In the present embodiment, this method of data synchronization also comprises: if the time of origin of any two network elements is not identical or the time zone of any two network elements stamp is not identical, then do not carry out data collision process.Wherein, consider that the industrial data of different network elements occurs in and be possible in the same time and allow to occur the situation of the data occurred in the same time in different time zone, therefore, in this case, do not carry out data collision process.
By the way, the method of data synchronization of the industrial data net of the embodiment of the present invention is by being divided in different clock area by the network element of industrial data net, when network element uploads industrial data, whether the industrial data that different network elements distinguished by the time zone stamp utilizing clock area corresponding clashes, and when clashing, carry out data collision process, thus can ensure that the time of origin of the industrial data of industrial data net is strictly concerned with, follow-up data analysis conclusion accurate and effective can be ensured.
The foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every utilize instructions of the present invention and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (5)
1. a method of data synchronization for industrial data net, is characterized in that, comprising:
Industrial data net is divided into multiple clock area, and carries out sync identification to all network elements in described industrial data net, wherein, clock area described in each at least comprises a network element;
Be respectively clock area described in each and arrange time zone stamp, wherein, the time zone stamp of any two clock area is not identical;
Receive and resolve the packet that described network element uploads, wherein, described packet comprises the time of origin of the clock area at described network element place corresponding time zone stamp, industrial data and described industrial data;
Judge that whether the time of origin of any two network elements is identical;
If the time of origin of described any two network elements is identical, judge whether the time zone stamp of described any two network elements is identical;
If the time zone stamp of described any two network elements is identical, then carry out data collision process.
2. the method for data synchronization of industrial data net according to claim 1, is characterized in that, the step of described data collision process is specially:
Store and record the industrial data of described any two network elements;
Give up the packet that described any two network elements are uploaded after described time of origin.
3. the method for data synchronization of industrial data net according to claim 1, is characterized in that, the step of described data collision process is specially:
Store and record the industrial data of described any two network elements;
Generate conflict warning daily record.
4. the method for data synchronization of industrial data net according to claim 1, is characterized in that, describedly comprises the step that all network elements in described industrial data net carry out sync identification:
Adopt rubidium atomic clock to carry out sync identification to the indoor network element that is in described industrial data net, adopt GPS to carry out sync identification to the outdoor network element that is in described industrial data net.
5. the method for data synchronization of industrial data net according to claim 4, is characterized in that, described method of data synchronization also comprises:
If the time of origin of described any two network elements is not identical or the time zone of described any two network elements stamp is not identical, then do not carry out data collision process.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510738392.6A CN105404255B (en) | 2015-11-03 | 2015-11-03 | The method of data synchronization of industrial data net |
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|---|---|---|---|
| CN201510738392.6A CN105404255B (en) | 2015-11-03 | 2015-11-03 | The method of data synchronization of industrial data net |
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| CN105404255A true CN105404255A (en) | 2016-03-16 |
| CN105404255B CN105404255B (en) | 2017-12-26 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114844562A (en) * | 2022-04-28 | 2022-08-02 | 深圳市东晟数据有限公司 | Optical fiber signal correlation analysis method based on different regions |
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| CN101005428A (en) * | 2006-01-19 | 2007-07-25 | 华为技术有限公司 | Realizing method for detecting and resolving data synchronous conflict |
| CN101141325A (en) * | 2007-09-29 | 2008-03-12 | 华为技术有限公司 | Method and apparatus for detecting network element sign conflict |
| US20110135047A1 (en) * | 2008-08-29 | 2011-06-09 | Abb Research Ltd | Time synchronization in industrial process control or automation systems |
| CN103888253A (en) * | 2012-12-19 | 2014-06-25 | 中国电信股份有限公司 | Token mechanism-based data processing method and system |
| CN104717737A (en) * | 2014-01-03 | 2015-06-17 | 沈阳中科博微自动化技术有限公司 | Industrial wireless network time synchronization correction method based on TDMA |
-
2015
- 2015-11-03 CN CN201510738392.6A patent/CN105404255B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101005428A (en) * | 2006-01-19 | 2007-07-25 | 华为技术有限公司 | Realizing method for detecting and resolving data synchronous conflict |
| CN101141325A (en) * | 2007-09-29 | 2008-03-12 | 华为技术有限公司 | Method and apparatus for detecting network element sign conflict |
| US20110135047A1 (en) * | 2008-08-29 | 2011-06-09 | Abb Research Ltd | Time synchronization in industrial process control or automation systems |
| CN103888253A (en) * | 2012-12-19 | 2014-06-25 | 中国电信股份有限公司 | Token mechanism-based data processing method and system |
| CN104717737A (en) * | 2014-01-03 | 2015-06-17 | 沈阳中科博微自动化技术有限公司 | Industrial wireless network time synchronization correction method based on TDMA |
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| CN114844562A (en) * | 2022-04-28 | 2022-08-02 | 深圳市东晟数据有限公司 | Optical fiber signal correlation analysis method based on different regions |
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Effective date of registration: 20191211 Address after: 610041 5 / F, zone B, building 3, No.200, Tianfu 5th Street, Chengdu hi tech Zone, China (Sichuan) pilot Free Trade Zone, Chengdu, Sichuan Province Patentee after: Chengdu Tianheng Intelligent Manufacturing Technology Co., Ltd. Address before: 610000 Shuangliu County Economic Development Zone, Southwest Airlines Development Zone, Chengdu, Sichuan, Chengdu, Chengdu University of Electronic Science and technology of China Patentee before: Chengdu Science and Technology Ltd. of Tian Heng electricity section |
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