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Multi-route establishment method and parallel data transmission method of wireless sensor network

A technology of wireless sensor and establishment method, applied in the multi-routing field of low-latency transmission of wireless sensor network, can solve the problem of large network transmission delay, unable to meet the requirements of low-latency transmission, and difficult to meet low-latency and real-time performance. Data transmission requirements and other issues, to achieve the effect of convenient establishment process

Inactive Publication Date: 2012-09-12
SHANDONG COMP SCI CENTNAT SUPERCOMP CENT IN JINAN
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AI Technical Summary

Problems solved by technology

When the number of forwarding nodes between the source node and the destination node is large, the network transmission delay will be very large, which cannot meet the low-latency transmission requirements of some application scenarios, such as intrusion detection, alarm data transmission, etc. Difficult to meet its low-latency, real-time data transmission requirements

Method used

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  • Multi-route establishment method and parallel data transmission method of wireless sensor network
  • Multi-route establishment method and parallel data transmission method of wireless sensor network
  • Multi-route establishment method and parallel data transmission method of wireless sensor network

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Embodiment Construction

[0039] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0040] figure 1 with figure 2 The solid line arrow RREQ shown represents the routing request command, and the dotted line arrow RREP represents the routing reply command.

[0041] figure 1 with image 3 A schematic diagram of the routing establishment process and a program diagram for routing establishment of the present invention are provided respectively, image 3 The flow chart of the route establishment process is given in general, by image 3 It can be concluded that the process of route establishment includes the following steps: a. The source node that needs to send data sends a route request command to the forwarding node around it to the destination node; b. The forwarding node checks whether there is an existing route to the destination node Make a judgment; if there is an existing route, then perform step c; if there is no existing rout...

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Abstract

The invention provides a low-delay transmission based multi-route establishment method and a multi-route parallel data transmission method of a wireless sensor network. The multi-route establishment method comprises the following steps: judging whether existing routes arriving at the destination node exist by a forwarding node; retaining the existing routes and carrying out bidirectional route confirmation if the existing routes exist; further judging whether the new routes exist if the existing routes do not exist; and further establishing multiple routes. The data transmission method comprises the following steps: selecting a plurality of routes containing least nodes from a plurality of established routes and simultaneously transmitting data; a source node detecting the state of each route and transmitting the data packet to be transmitted to a destination node along the route which is free in advance until all the data are transmitted. The two methods of the invention reduce the data transmission time and realize low-delay transmission of the data from the source node to the destination node.

Description

technical field [0001] The present invention relates to a multi-routing establishment method of a wireless sensor network and a parallel data transmission method, more specifically, to a multi-routing method for low-delay transmission of a wireless sensor network implemented at the network layer, and a method utilizing the above-mentioned A method for parallel transmission of data by multiple routes. Background technique [0002] The wireless sensor network deploys nodes with perception capabilities in a distributed manner in places that need to be sensed or monitored, and the physical quantities that need to be sensed or monitored are usually transmitted to the aggregation node in a wireless and multi-hop manner, thereby realizing wireless monitoring of the surrounding environment. Short-range wireless communication technology for perception purposes. [0003] The core of wireless sensor network technology is the design of communication protocol stack. At present, no matt...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/28H04W40/02H04L29/08H04W84/18
Inventor 郭强陈长英徐向华魏诺刘瑞霞孔祥龙
Owner SHANDONG COMP SCI CENTNAT SUPERCOMP CENT IN JINAN
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