Adaptive measurement based compressed data collection method in wireless sensor network

A technology for wireless sensors and data compression, applied in network traffic/resource management, service based on specific environment, wireless communication, etc.

Active Publication Date: 2018-03-09
北京京航计算通讯研究所
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] The technical problem to be solved by the present invention is: how to design a compressed data collection method for self-adaptive measurement in view of the limitations of the classical compressed data collection method...

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  • Adaptive measurement based compressed data collection method in wireless sensor network
  • Adaptive measurement based compressed data collection method in wireless sensor network
  • Adaptive measurement based compressed data collection method in wireless sensor network

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Embodiment

[0100] In this embodiment, it is assumed that N common sensor nodes are randomly deployed in the wireless sensor network, and the sink node is deployed at the center of the area. Each sensor node and the sink node communicate through multi-hop links, and have a clear topology. The sensor nodes periodically collect the information of the surrounding environment, and transmit the collected sensor readings to the sink node according to a certain routing method at a fixed sampling time point. The compressed data collection method based on adaptive measurement proposed by the present invention, the schematic diagram of the data collection and fusion process at a fixed time node is as follows figure 1 shown.

[0101] The present invention is a method of compressing data collection based on self-adaptive measurement in a wireless sensor network, referring to figure 2 As shown, it specifically includes the following steps:

[0102] Step 1, initialization.

[0103] In wireless sens...

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Abstract

The invention belongs to the technical field of wireless communication, specifically relates to an adaptive measurement based compressed data collection method in a wireless sensor network, the methodcomprises the following steps: initialization: estimating spatial-temporal correlativity of node data according to historical data information; signal priori estimation: estimating priori informationof the current signal through the spatial-temporal correlativity of node data; compressed data collection; data reconstruction; and measurement times updating; by the steps, the adaptive measurementbased compressed data collection method in the wireless sensor network provided by the invention automatically adjusts the measurement times according to variance of sparseness of to-be-measured signals, guarantees reduction of data transmission quantity in the wireless sensor network under the premise of precise reconstruction, and prolongs network service life.

Description

technical field [0001] The invention belongs to the technical field of wireless communication, and in particular relates to a method for collecting compressed data based on self-adaptive measurement in a wireless sensor network. Background technique [0002] Wireless sensor network is a multi-disciplinary frontier research field, covering sensor technology, embedded technology, wireless communication technology, information processing technology, data analysis and fusion technology, etc. The wireless sensor network uses a large number of highly integrated smart sensors for collaborative perception of environmental targets, and gathers the collected target data to the terminal nodes in a multi-hop manner, realizing the connection between things and things, people and people, and people and people. interconnections between things. Wireless sensor network is a new generation of information processing technology and the only way to realize the Internet of Everything. Especiall...

Claims

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Application Information

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IPC IPC(8): H04W4/38H04W28/06H04L29/06
CPCH04L69/04H04W28/06
Inventor 王东豪胡婷鞠岩郭子仪
Owner 北京京航计算通讯研究所
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