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Distributed embedded data and knowledge management system integrating plc history

A technology of distributed data and management systems, applied in the field of distributed data management systems, can solve problems such as unrealistic direct intervention

Active Publication Date: 2019-05-17
SIEMENS AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, analysis-based direct intervention in control is often impractical for time-critical processes

Method used

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  • Distributed embedded data and knowledge management system integrating plc history
  • Distributed embedded data and knowledge management system integrating plc history
  • Distributed embedded data and knowledge management system integrating plc history

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Embodiment Construction

[0027]The systems, methods, and apparatus described herein relate generally to a distributed storage system implemented across multiple intelligent programmable logic controllers (referred to herein as "intelligent PLCs"). According to various embodiments described herein, an intelligent PLC is a node in a cluster of non-homogeneous nodes that performs one of several roles (e.g., control, high-bandwidth data acquisition, etc.) and acquires data from other nodes as needed to Embedded analytics are performed at levels not possible in conventional MES systems. In addition, smart PLCs can retrieve local knowledge or the knowledge of other nodes. This feat, combined with local history, knowledge models and reasoning capabilities, and on-the-spot analytics, opens the door to powerful knowledge-driven distributed analytics on the cluster, thus making the Smart PLC cluster a powerful real-time data store, knowledge store for the entire automation process. Storage, analytics and inter...

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Abstract

The present invention relates to a system for storing data in an industrial production environment, the system comprising: a distributed data management system stored on a plurality of intelligent programmable logic controller devices. Each intelligent programmable logic controller device includes: a volatile computer-readable storage medium, including a process image area; a non-volatile computer-readable storage medium; a control program configured to provide operating instructions to a production unit; input / output a component configured to update a process image area with data associated with a production unit during each scan cycle; a distributed data management component including an instance of a distributed data management system; a contextualization component; a history recording component; and a data analysis component .

Description

technical field [0001] The invention relates to a distributed data management system for intelligent PLC. The various systems and methods are applicable to industrial automation applications as well as various other applications using intelligent PLCs. Background technique [0002] A programmable logic controller (PLC) is configured as a specialized computer control system executing software that continuously collects data about the state of input devices to control the state of output devices. A PLC typically includes three main components: a processor (which may include volatile memory), volatile memory including an application, and one or more input / output (I / O) for connection to other devices in the automation system. O) port. [0003] Conventional automation systems follow a pyramid structure that requires the transfer of all raw data (millions of sample points) from the PLC to the history of upper layers (e.g., SCADA or MES level). Pushing data to upper layers reduc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B19/05
CPCG05B19/05G06N5/022G05B2219/14055G05B13/04G05B19/052G06F16/182G06F16/1873
Inventor 贝尔纳多·赫尔蒙特波格丹·罗斯卡贾斯蒂尼安·罗斯卡辛徒·苏雷什王凌云
Owner SIEMENS AG