Research On Information Processing Of Agricultural Information Network Based On Spatio - Temporal Semantics

Agricultural development speed is slow in China, the level of modernization is not high, is still a weak industry. Internet of Things as a new field of information technology has attracted the attention of all countries in the world, and Agricultural IOT greatly improves the efficiency of agricultural comprehensive productivity and management. The huge amount, high redundancy and uncertainty of front end information perception, increased the agricultural IOT information transmission and processing difficulty, together with the lack of method which can complete describe various spatiotemporal change of agricultural IOT, after processed the amount of redundancy data is still large and so on. Data processing effect is not good,agricultural IOT data processing technology is not mature. Information sensing and processing of agricultural IOT is the most basic function. At present, there is no effective mining and utilization on spatiotemporal correlation. This feature has an important influence on perceptual data processing of agricultural IOT, which is of special significance to the spatiotemporal characteristics. It is an important problem to deal with aimed at the data characteristics of agricultural IOT effective processing of information.This article based on semantic technology, considers the problem of data processing of Agricultural Internet of things from a new perspective, make full use of the advantages of semantic technology in information representation, classification and computation, mining spatiotemporal correlation characteristics of agricultural IOT, constructing a information processing model of agricultural Internet of Things based on spatiotemporal semantic. Mainly solve the problem of effective representation and processing of Agricultural Internet of things perceptual data.Around information processing framework of agricultural IOT based on spatiotemporal semantic, temporal and spatial semantic description and representation of Agricultural Internet of things perceptual information, agricultural Internet of Things data fusion processing based on spatiotemporal semantic these problemsbegin to research work. To a certain extent has solved real time and efficient processing of massive heterogeneous information of Agricultural Internet of things, it for the agricultural Internet of Things large scale application and extension laid a theoretical foundation, and has the important practical significance. This article specific research work and results are as follows:(1) Proposing information processing framework of agricultural IOT based on spatiotemporal semantic. After summarizes the Agricultural Internet of things,according to IOT and Agricultural IOT information processing research status,through the analysis of the existing architecture model of agricultural IOT, proposed information processing framework of agricultural IOT based on spatiotemporal semantic.(2) Proposing classification method of agricultural IOT spatiotemporal change,constructing spatiotemporal semantics description and representation framework of agricultural IOT perceptual information. Based on the solution to the problem of the unified modeling of the spatiotemporal semantics relations of Agricultural Internet of things data, analysis on the characteristics of Agricultural Internet of things events and spatiotemporal information, study on spatiotemporal semantics analysis technology of Agricultural Internet of things events. proposed classification method of agricultural IOT spatiotemporal change, And a method of complete description agricultural IOT spatiotemporal change, which based on history topology and descriptor. Constructed spatiotemporal semantics description and representation framework of agricultural IOT perceptual information.(3) Constructing a spatiotemporal semantic model of agricultural Internet of Things. Mining spatiotemporal correlation characteristics of agricultural IOT,spatiotemporal semantics concepts introduction to the agricultural Internet of Things,based on spatiotemporal change, constructed a spatiotemporal semantic model of agricultural Internet of Things. Finally, by an example to illustrate the modeling process of spatiotemporal semantic model of agricultural Internet of Things, to verify the validity of the model.(4) Proposing agricultural Internet of Things data fusion processing algorithm based on spatiotemporal semantic. on the basis of perception information semanticrepresentation, using spatiotemporal correlation of RFID data, perception data fusion processing in the Agricultural Internet of things sensing network. Proposed spatial fusion processing algorithm and time fusion processing algorithm, which can effectively remove time redundancy data and spatial redundancy data. The feasibility and validity of the algorithm are verified by experimental data.