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Mixed sink node WSN and data collection method thereof

A data collection and node technology, applied in electrical components, wireless communication, network topology, etc., can solve problems such as inability to process data types at the same time, achieve the effect of reducing data delay and prolonging network life

Active Publication Date: 2012-09-26
ZTE CORP
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

[0008] The main purpose of the present invention is to provide a hybrid sink node WSN and its data collection method to solve the problem of WSN hot spots and the inability to process two types of data at the same time

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  • Mixed sink node WSN and data collection method thereof
  • Mixed sink node WSN and data collection method thereof
  • Mixed sink node WSN and data collection method thereof

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Embodiment Construction

[0047] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0048] It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0049] Such as figure 1 As shown, it is a schematic diagram of the principle of the mixed sink node WSN in the present invention; this embodiment takes a mobile sink node in the WSN as an example. In practical applications, there can be multiple mobile sink nodes. In the figure, ● represents the sink node, ○ Indicates the sensor node, the dotted circle with radius u indicates the movement trajectory of the mobile sink node; the solid circle with radius r indicates the communication radius of the sensor node; the solid circle with radius R indicates the coverage radius of WSN, and the arrow indicates the data flow direction. The WSN is deployed in a circle, t...

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Abstract

The present invention relates to a mixed sink node WSN and a data collection method thereof. The WSN includes a fixed sink node, at least one mobile sink node and more than two sensor nodes. The method comprises the following steps: the mobile sink node periodically distributes a beacon frame to an adjacent sensor node; the sensor node which receives the beacon frame sends a data packet to a mobile sink node in a hop range, or temporally stores a delay tolerance data packet to a buffer area, and sends a real-time data packet to a next hop sensor node of the fixed sink node according to the routing; the sensor node which does not receive the beacon frame sends the data packet according to the routing. According to the mixed sink node WSM and the data collection method, a problem that a WNS hotspot area and a present WSN can not process different data types at the same time is solved.

Description

technical field [0001] The present invention relates to the technical field of wireless sensor networks (Wireless Sensor Networks, WSN), in particular to a hybrid sink node WSN and a data collection method thereof. Background technique [0002] With the development of the Internet of Things, WSN, as the nerve endings of the Internet of Things, has become a hot research topic. A typical WSN is composed of a large number of tiny wireless sensor nodes with perception capabilities and a fixed sink node. They are deployed in different application scenarios, and the sensor node transmits the perceived data to the sink node through a single hop or multi-hop. Studies have shown that the energy consumption of the near-end sensor node of the sink node is much faster than that of the far-end sensor node due to excessive load, resulting in a hot spot problem. This uneven energy consumption degrades the performance of WSNs and at the same time greatly shortens the lifetime of WSNs. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W24/00H04W84/18
Inventor 蒋挺张红梅钟怡杨光许玲
Owner ZTE CORP
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