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Hybrid sink node wsn and its data collection method

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: 2017-06-09
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • 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

Method used

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  • Hybrid sink node wsn and its data collection method
  • Hybrid sink node wsn and its data collection method
  • Hybrid sink node wsn and its data collection method

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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 invention relates to a mixed sink node WSM 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 node distributes the beacon frame; the sensor node that receives the beacon frame sends the data packet to the mobile sink node within its one-hop range, or temporarily stores the delay-tolerant data packet in its buffer area, and sends the real-time data packet Send it to the next-hop sensor node to the fixed sink node according to the route; the sensor node that has not received the beacon frame sends the data packet according to the route. The invention solves the problem that the WNS hotspot area and the existing WSN cannot process different data types at the same time.

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 Patents(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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