Data distribution method for wireless sensor network

A wireless sensor and data distribution technology, applied in wireless communication, network topology, network traffic/resource management, etc., can solve problems such as unguaranteed reliability and shortened completion time.

Active Publication Date: 2013-01-16
WUXI TSINGHUA NAT LAB FOR INFORMATIONSCI & TECH INTERNET OF THINGS TECH CENT
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since there is no negotiation process of control information in such a data distribution method, the completion time to achieve a certain degree of reliability is greatly shortened, but because there is no retransmission mechanism, 100% reliability cannot be guaranteed

Method used

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  • Data distribution method for wireless sensor network
  • Data distribution method for wireless sensor network
  • Data distribution method for wireless sensor network

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Embodiment Construction

[0043] In order to make the purpose, technical solution and advantages of the present invention clearer, the present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0044] Please refer to figure 1 and figure 2 As shown, the data distribution method of the wireless sensor network in this embodiment includes the following steps:

[0045] Step S101, the node receives the data packet of the new page, changes from the "maintenance" state to the "receiving" state, and returns to the "maintenance" state after receiving all the data packets of the new page; wherein, when the node is in the "maintenance" state ” state, the node will send periodic ADV messages to determine whether it needs to obtain data from other nodes or send data to other nodes to maintain the state consistency of the entire network.

[0046] The "maintenance" state is the initial state of the network, and all nodes in the wireless sensor network maintain...

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Abstract

The invention discloses a data distribution method for a wireless sensor network. The data distribution method includes: step A, after receiving data packets of a new page, a node is changed into a 'receiving' state from a 'maintenance' state, and then returns to the 'maintenance' state after receiving all the data packets of the new page; step B, the node is switched into an 'evaluation' state to be subjected to parameter evaluation and optimum strategy decision; step C, the node complete data distribution by the aid of a consultation-based distribution protocol; and step D, the node is switched into a 'consultation' state after broadcasting the data packets of the new page by n times, and then is switched into the 'maintenance' state in waiting timeout of REQ messages. The data distribution method is independent of any specific data distribution protocols. Since corresponding data distribution method is selected on the basis of an accurate theoretical model, data distribution efficiency is increased while 100% of reliability is guaranteed.

Description

technical field [0001] The invention relates to the field of wireless sensor networks, in particular to a data distribution method of the wireless sensor network. Background technique [0002] Wireless sensor network is a self-organizing network that realizes the collection, processing and transmission of data by a large number of sensor nodes (referred to as nodes) through wireless communication. areas of development. Wireless sensor network integrates sensing technology, wireless communication technology, MEMS technology and distributed information processing technology, and can be applied to military, environmental and other fields. It connects the information world and the physical world, and will change the relationship between man and nature. interactive mode. Because of this, wireless sensor networks are getting more and more attention. [0003] Due to the particularity of its application environment, the wireless sensor network is obviously different from the trad...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W28/04H04W28/06H04W84/18
Inventor 郑宵龙王继良董玮何源刘云浩
Owner WUXI TSINGHUA NAT LAB FOR INFORMATIONSCI & TECH INTERNET OF THINGS TECH CENT
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