An energy-saving routing method for IoT nodes based on context-aware technology

Abstract

The invention discloses an energy-saving routing method of nodes of an energy effective based on a context-aware technology. A CATRP (Context-Aware Technology Routing Protocol) is used as a routing work way of nodes in an internet of things environment, so as to achieve an established energy saving goal. The method disclosed by the invention belongs to the technical field of the internet of things. According to the method disclosed by the invention, the context-aware technology is applied to communicational nodes which work in the internet of things as a core technology for an energy-saving purpose of the invention, and composition modules of the protocol are designed comprehensively from the perspectives of working process, data structure, quantitative algorithm design, and the like. Due to application of the patent, a good foundation for realization of a universal computing service in the whole society in the near future can be laid, right development of the internet of things technology in the future is guided, theoretical basis enrichment and certain contribution for transformation of a wireless sensor network technology at the present stage are made, and the method has important meaning to enhancement of energy saving technology level of the internet of things in the industry, to acceleration of schedule of a national energy-saving routing research subject for nodes of the internet of things, to promotion of domestic demand, and to promotion of development of related industries.

Description

technical field [0001] The invention relates to a context-aware technology-based energy-saving routing method for Internet of Things nodes——CATRP (Context-Aware Technology Routing Protocol), which belongs to the technical field of Internet of Things. Background technique [0002] With the rapid development of Micro Electro Mechanical System (Micro Electro Mechanism System, MEMS), System on Chip (SOC, System on Chip), wireless communication and low power consumption embedded technology, Wireless Sensor Networks (Wireless Sensor Networks, WSN) with its low The characteristics of power consumption, low cost, distribution and self-organization have brought a revolution to the field of information perception technology. [0003] From the late 1980s to the early 1990s, Mark Weiser proposed the idea of ​​ubiquitous computing, and the realization and popularization of Internet of Things technology will be one of the important manifestations of the idea of ​​ubiquitous computing. Th...

AI Technical Summary

Problems solved by technology

Both protocols have serious flaws in application: implosion, overlap, blind utilization of resources, ambiguity of purpose, large transmission delay, etc.

In terms of energy efficiency, it cannot be compared with the energy-centric CATRP protocol proposed by this application

[0024] (3) Although SPIN has designed a negotiation mechanism to solve the problem of resource waste such as information explosion and information duplication, and the topology change is also similar to the CATRP protocol, showing localization characteristics, but its cumbersome "three-way handshake" and inflexible energy threshold Mechanisms make the SPIN protocol not excellent in energy efficiency

Most importantly, because SPIN controls the type of transmitted data too much, when the neighbor node does not need it, it often causes the remote node to fail to obtain key data in the application, which greatly limits the application environment of SPIN

[0025] (4) Rumor, as a representative scheme of query-based routing protocol, overcomes the problem of high overhead of DD (Directed Diffusion) under the condition of banning flood propagation and path enhancement. Due to the lack of reliability guarantee in the way of random unicast, let alone logic, the Rumor protocol cannot get rid of the problem of non-optimization of the generated path and the problem of routing loops

The application of context-aware technology in the ubiquitous computing environment in the future must be combined with mathematical tools in order to better improve the comprehensive index of WSN routing technology; "Research on Several Key Technologies of Context-Aware Computing" (Hunan University, Ph.D. Dissertation in 2007 The MAFZP protocol proposed by Li Rui) did not make full use of context-aware technology, and the model design was far-fetched, which could not reflect the contextual relevance of node movement well, lacked technical integration in details, and the characteristics of context-aware technology did not play a big role.

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