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Method and system for detecting uncertain data stream-oriented complex events in manufacture internet of things

A technology for manufacturing the Internet of Things and complex events, which is applied in the field of complex event detection for the manufacturing Internet of Things facing uncertain data flow, and can solve the problems of complex event detection, such as the threat of a large amount of memory occupied in real-time, and the increase of the burden of complex event detection process.

Active Publication Date: 2017-01-04
GUANGDONG UNIV OF TECH
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Problems solved by technology

Therefore, the burden of the complex event detection process is increased, and as the amount of data increases exponentially, the real-time and large memory usage of complex event detection are threatened

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  • Method and system for detecting uncertain data stream-oriented complex events in manufacture internet of things
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  • Method and system for detecting uncertain data stream-oriented complex events in manufacture internet of things

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Embodiment Construction

[0043] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0044] The embodiment of the present invention discloses a complex event detection method and system for uncertain data streams in the manufacturing Internet of Things, so as to detect complex events of uncertain data streams in the manufacturing Internet of Things.

[0045] see figure 1 According to an embodiment of the present invention, a complex event detection method for manufacturing Internet of Things oriented to uncertain data streams, including:

[0046] ...

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Abstract

The invention discloses a method and system for detecting uncertain data stream-oriented complex events in manufacture internet of things; the method comprises: reading a target atomic event with probability value; during NFA (nondeterministic finite automaton) state transition, if a corresponding matching tree is present, using a present matching tree as a left node and the target atomic event as a right node to generate a matching tree using post-transition NFA state as a root; if a corresponding matching tree is not present, using NFA initial state as a left leaf node and the target atomic event as a right leaf node to generate a matching tree with post-transition NFA state as a root; if it is detected that a root node of the matching tree is NFA termination state and timestamp size of the matching tree is in sliding window time, giving priority to deep traversal of the right leaf node of the matching tree with the NFA termination state as a root node, and outputting complex events in a reverse sequence; uncertain data stream complex events are detected by using NFA in conjunction with the matching tree, and event detection efficiency is improved.

Description

technical field [0001] The present invention relates to the field of manufacturing Internet of Things network, more specifically, to a complex event detection method and system for manufacturing Internet of Things facing uncertain data streams. Background technique [0002] With the widespread application of manufacturing Internet of Things technology, a large amount of data is generated in the manufacturing Internet of Things. Due to the influence of objective factors such as the surrounding environment and hardware equipment during the data collection process, the generated data has certain uncertainties. Therefore, the burden of the complex event detection process is increased, and with the exponential increase of the data volume, the real-time performance and large memory usage of complex event detection are threatened. [0003] Events directly generated by event generators such as sensor networks are atomic events. In applications, it is almost useless to rely on atomi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/30G06Q50/04H04L29/08
CPCY02P90/30G06F16/2246G06F16/24568G06Q50/04H04L67/12
Inventor 张旭熳程良伦杜量冯申杰王延凯
Owner GUANGDONG UNIV OF TECH
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