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A unified acquisition system of a wide-area industrial control network and an acquisition method thereof

A technology of industrial control network and acquisition system, applied in the field of unified acquisition system of wide-area industrial control network, can solve the problems of high data processing cost and complex network structure, etc.

Inactive Publication Date: 2018-12-18
胡书恺
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is the technical problem of high data processing cost and complex network structure in the prior art

Method used

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  • A unified acquisition system of a wide-area industrial control network and an acquisition method thereof
  • A unified acquisition system of a wide-area industrial control network and an acquisition method thereof
  • A unified acquisition system of a wide-area industrial control network and an acquisition method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0068] Traditional collection and application systems based on independent business applications such as figure 1 , The business system has a common collection and application server, collection and application database, and does not strictly distinguish between collection and application, while different business systems realize data sharing through the SOA bus between the master stations. There is neither numerical value and time precision correction of different collected data between traditional collection structures, nor does it provide data credibility information. Therefore, under the traditional structure, different business and collection systems essentially exchange "weak correlation" information.

[0069] This embodiment provides a figure 2 and Figure 8 The unified collection system that separates collection and business applications as shown meets the requirement of "strongly related" information exchange between different application systems in the wide-area i...

Embodiment 2

[0084] On the basis of Embodiment 1, this embodiment is further optimized to provide parameters related to the confidence space of the data. This embodiment provides a system structure and method for calculating time reliability parameters. Specifically, the communication clock and the service clock are fused and calculated, and an appropriate clock correction scheme is selected according to the confidence space of time reliability. In this implementation, the service clock with low precision is corrected by the communication clock with high precision. Conversely, the low-precision communication clock can also be corrected by the high-precision service clock.

[0085] Data confidence space includes numerical reliability and time reliability, numerical reliability: numerical value, numerical error, confidence space of error. Time reliability: the time scale of data time quality, delay jitter value, and its error, and the confidence space of error.

[0086] The method for cal...

Embodiment 3

[0133] In this embodiment, a "collection session agent" and a "collection communication agent" are set at the collection master station, and a "terminal adaptation unit" is set at the on-site collection terminal. The collection session agent is responsible for maintaining the session connection and establishing the transaction ID. Collect the way the communication agent chooses the communication connection, such as long connection and short connection, and adjust the connection parameters. This embodiment realizes communication maintenance and closed-loop control.

[0134] Closed-loop control mainly refers to the statistical acquisition master station according to the numerical accuracy and time accuracy requirements of the business application data of the business master station, and the closed-loop control of the acquisition parameters of the on-site acquisition entity to adjust the numerical accuracy and time accuracy of the collected data. The acquisition parameters includ...

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Abstract

The invention relates to a unified collection system of wide area industrial control network and a collection method thereof, solving the technical problem of repeatedly configuration of the acquisition device, inconsistencies in the data obtained between different business systems, reliable, strongly correlated industrial site-based metrology data is obtained by the field acquisition entity of the unified acquisition system, the unified collection master station of the unified collection system obtains the value, numerical credibility, time credibility and time credibility characteristics ofthe collected data by the data fusion method. According to the application requirements of the service master station, the parameter configuration of the on-site collection entity is changed, and theindustrial field application data satisfying the numerical accuracy and time accuracy requirements of the service master station is provided, the method is used in the intelligent water affair and smart grid and other industrial informationization systems.

Description

technical field [0001] The invention relates to data collection of a wide-area industrial control network in the field of industrial Internet, and in particular to a unified collection system and a collection method of a wide-area industrial control network. Background technique [0002] The Industrial Internet realizes wide-area industrial control and realizes the information coordination of the whole process of industrial production and the whole region. For example, in the informatization of smart water affairs and smart grid, information sharing is realized between all links of the production process, so as to develop from the traditional local inner-loop automatic control to the wide-area industrial control with multi-objective optimization of the whole process and the whole region . This requires the support of a unified information collection system of the wide-area industrial control network to obtain production site information such as the operating status of the p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/08
CPCH04L67/12
Inventor 胡书恺
Owner 胡书恺
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