Internet of Things multi-equipment collaborative service construction method based on improved D-S evidence

Abstract

The invention discloses an Internet of Things multi-equipment collaborative service construction method based on improved D-S evidence. According to the method, the semantic information in the perception data is extracted; a new atomic service is designed to replace the existing atomic service; input and output of new atomic services are described by adopting semantic information, so that loose coupling of upper-layer service logic and bottom-layer perception data can be realized, multiple workflows can share the same atomic service when the workflows are constructed, and finally, the adaptability of the workflows and the reusability of resources are improved; through the data fusion technology, resources of a plurality of similar or different types of sensing equipment nodes can be fully utilized, the resources are combined according to a certain optimization criterion and complemented, the uncertainty of the resources is reduced, and therefore relatively complete and consistent description on a sensing object is given. Compared with a single sensing device node, the reliability and robustness of data collection can be improved by applying a data fusion technology of multiple device nodes, and the reliability of the Internet of Things service is enhanced.

Description

technical field [0001] The invention relates to the technical field of the Internet of Things, in particular to a method for constructing an Internet of Things multi-device collaborative service based on improved D-S evidence. Background technique [0002] The Internet of Things (IoT) is an important part of the new generation of information technology. Once the concept of the Internet of Things was put forward, it has attracted extensive attention from governments and research institutions around the world, setting off the third revolution in the information industry. The Internet of Things is a large-scale network formed by connecting a large number of devices with identification, perception, and processing capabilities to the Internet through various access technologies. Different from the Internet that only realizes the information interaction between people, the Internet of Things connects the physical world and the information world, realizes the interaction between t...

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Problems solved by technology

[0023] Aiming at the deficiencies of the prior art, the present invention aims to provide a multi-device collaborative service construction method for the Internet of Things based on improved D-S evidence, realize the loose coupling between the upper-layer business logic and the lower-layer perception data, and solve the problem of single-device nodes due to their own hardware or chain To solve the problem of poor reliability of sensing data caused by road environment problems, provide a relatively complete and consistent description of sensing objects, and improve service credibility

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