Automation and control distributed data management systems
A distributed data and automation system technology, applied in the general control system, control/regulation system, program control, etc., can solve the problem of not being fully utilized
Inactive Publication Date: 2018-03-27
SIEMENS AG
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However, these capabilities are often underutilized in conventional systems that force control plane devices to fit into the paradigm of multi-tier architectures discussed above
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[0019] Systems, methods, and apparatus are described herein, which relate primarily to distributed storage systems implemented on multiple intelligent programmable logic controllers (referred to herein as "smart PLCs"). In short, every intelligent PLC contains historical components that are integrated into a distributed data management system. Each historian component stores the process image of its corresponding intelligent PLC along with analysis, contextualization and other derived information. As used herein, the term distributed data management system refers to any system that provides distributed storage and distributed processing (eg, by mapping / induction at the embedded level) of data sets on intelligent PLCs. Thus, the distributed storage systems described herein may be implemented, for example, using a distributed file system (eg, Hadoop DFS) or a distributed database management system (eg, MongoDB). By using this system, a consistent distributed view of history can...
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A system for storing data in an industrial production environment includes a distributed database stored on a plurality of intelligent programmable logic controller devices. Each respective intelligent programmable logic controller device includes a volatile computer-readable storage medium comprising a process image area; a non-volatile computer-readable storage medium; a control application; aninput / output component; a historian component; and a distributed data management component. The control application is configured to provide operating instructions to a production unit. The input / output component is configured to update the process image area during each scan cycle with data associated with the production unit. The historian component is configured to store automation system datacomprising the operating instructions and contents of the process image area on the non-volatile computer-readable storage medium. The distributed data management component is configured to facilitatedistributed operations involving the automation system data by the plurality of intelligent programmable logic controller devices.
Description
technical field [0001] The present disclosure relates to a distributed data management system for intelligent PLCs. Various systems and methods can be applied to industrial automation applications and various other applications using intelligent PLCs. Background technique [0002] A programmable logic controller (PLC) is a dedicated computer control system configured to execute software that continuously collects data about the state of input devices to control the state of output devices. A PLC typically contains three main components: a processor (which may contain volatile memory), volatile memory including application programs, and one or more input / outputs (I / Os) used to connect to other devices in the automation system )port. [0003] PLCs are utilized in various industrial installations to control production and other automation devices that generate large amounts of data in their daily operations. This data may include, for example, sensor data, actuator and contr...
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IPC IPC(8): G05B19/05
CPCG05B19/05G05B2219/1204G05B2219/31324G05B19/052G05B2219/1144G05B2219/1203
Inventor 库尔特·迪尔克·贝滕豪森乔治·洛哈特穆特·路德维希贾斯蒂尼安·罗斯卡
Owner SIEMENS AG