Data collection method and device

A data collection and data collection technology, applied in the field of data collection, can solve the problems of high network energy consumption, inability to effectively improve data compression rate and reconstruction performance, etc.

Inactive Publication Date: 2016-12-14
BEIJING UNIV OF POSTS & TELECOMM
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Problems solved by technology

[0005] However, although the existing data collection mechanism is simple in engineering implementation, it cannot effect

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Embodiment Construction

[0083] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0084] The embodiment of the invention discloses a data collection method and device, which can effectively improve data compression rate and reconstruction performance and reduce network energy consumption while ensuring simple engineering implementation.

[0085]The method of data collection in the embodiment of the present invention will firstly be described in detail below.

[0086] Among them, the data collection method provided by this embodiment is appl...

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Abstract

The embodiment of the invention discloses a data collection method and device, and is applied to the technical field of the wireless sensing network. The method comprises the following steps: obtaining multiple pieces of compressed collection data, wherein the multiple pieces of compressed collection data are obtained in a way that a plurality of sensor nodes independently use different random measurement matrixes to carry out independent linear compression on the collected collection data; carrying out simultaneous low-rank and joint sparse modeling on the multiple pieces of compressed collection data to obtain a compression sensing reconstruction model based on a simultaneous low-rank and joint sparse structure; according to the compression sensing reconstruction model, adopting a joint reconstruction algorithm to reconstruct the multiple pieces of compressed collection data to obtain the collection data collected by the plurality of sensor nodes. Compared with the traditional data collection method, the data collection method disclosed by the invention is characterized in that the compression ratio and the reconstruction performance of the data can be effectively improved while engineering implementation is guaranteed to be simple, and network energy consumption is reduced.

Description

technical field [0001] The invention relates to the technical field of wireless sensor networks, in particular to a data collection method and device. Background technique [0002] In WSN (wireless sensor network, wireless sensor network), due to the hardware limitations of SN (sensor node, sensor node) in terms of its own battery capacity, storage capacity, computing and communication capabilities, the data collection and compression at the SN end are reduced. And transmission energy consumption, prolonging the life cycle of nodes is the core issue of WSN research. Compressed sensing technology is very suitable for WSN because of its simple linear compression processing characteristics, superior reconstruction performance and easy distributed processing. [0003] The proposal of DCS (distributed compressed sensing) theory realizes that in WSN, by using the shared sparse components and unique sparse components in the data collected by each sensor, the data collected indepen...

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Application Information

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IPC IPC(8): G06F17/16G06F17/15H03M7/30H04W84/18
CPCG06F17/15G06F17/16H03M7/30H04W84/18Y02D30/70
Inventor 李扬清尹长川刘丹谱余健刘旸张志龙
Owner BEIJING UNIV OF POSTS & TELECOMM
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