Sensor network data obtaining method with QoS guarantee

Abstract

The invention discloses a sensor network data obtaining method with QoS guarantee. The method comprises the following steps of: putting sensor network data in a memory buffer area and segmenting the sensor network data into a plurality of small data blocks; completing algorithm blocks in a parallel manner and integrating algorithm results; and merging data which undergoes block filling into complete sensor network data, storing the complete sensor network data in a database of a data center, and finally obtaining required sensor network data from the database of the data center by users. According to the method, original data is blocked and filled in parallel, an improved mahalanobis distance filling algorithm is divided into a plurality of independent small algorithm blocks which are calculated in parallel, and the filled complete sensor network data is merged and stored, so that the incomplete data filling speed is improved and the algorithm operation time is greatly shortened; and by adoption of weight optimization parameters which fill root mean square RMS on the basis of data, an influence factor, on missing objects, of an object with the maximum distance is minimized and thenthe algorithm filling precision is improved.

Description

technical field [0001] The invention belongs to the field of sensor communication, and relates to a sensor network data acquisition method with QoS guarantee in the case of data loss, so as to solve the problem that the speed of obtaining complete sensor network data is not fast and the data is lost The problem of low data accuracy. Background technique [0002] As one of the most important technologies in the new century, the sensor network will have an important impact on the comprehensive strength of the country, and will also completely change people's way of life. With the rapid development of sensor network, domestic research on sensor network is also in full swing. In recent years, the Internet of Things and big data have also been developed based on sensor networks, and the data-based era has arrived. [0003] Because of its important status and broad development prospects in the military and civilian fields, sensor networks have long been the focus of academic res...

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Problems solved by technology

[0010] The purpose of the present invention is to solve the defects of long calculation time and low precision in the traditional missing data filling technology, and to propose a method to solve the problem of how to design a system with low time delay and high data precision in the case of missing data. A sensor network data acquisition method with QoS guarantee of two indicators

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