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Sparse mobile sensing node perception coverage method balancing packet loss ratio and data transmission time delay

A sensor node and data transmission technology, applied in the field of wireless sensor networks, can solve the problems of increasing delay of data packet data transmission, not considering the problem of efficient and full coverage of the monitoring area, increasing packet loss rate and data transmission delay, etc.

Active Publication Date: 2019-04-05
绍兴市载沣智能科技有限公司
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Problems solved by technology

However, many methods do not consider the problem of efficient full coverage of the monitoring area in a sparse network environment, the overflow of data storage space of mobile sensor nodes, the discarding of overflow data packets, and the increase of data transmission delay.
[0004] In conclusion, in a sparse wireless sensor network that requires full coverage of the monitoring area, inefficient path selection methods for mobile sensor nodes will lead to increased packet loss rate and data transmission delay

Method used

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  • Sparse mobile sensing node perception coverage method balancing packet loss ratio and data transmission time delay
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  • Sparse mobile sensing node perception coverage method balancing packet loss ratio and data transmission time delay

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Embodiment Construction

[0079] The present invention will be further described below in conjunction with the accompanying drawings.

[0080] refer to figure 1 , a sparse mobile sensor node sensing coverage method that weighs packet loss rate and data transmission delay includes the following steps:

[0081] 1) Initialization parameters: Make the mobile sensor node perceive a movement path covering the entire monitoring area to represent a bacterium, initialize the grid positions of all bacteria and the neighbor grid set NG j , let the number of bacteria be S=100, and the number of migrations be N ed =50, the number of copies is N re =9, the number of chemotaxis is N c =7, the migration probability is P ed =0.6, optimal fitness value Best f =100. Order D i Represents the movement path of bacteria i that has not been migrated, and is initially an empty set, J(i,g,h,l) represents the adaptation of the movement path of bacteria i in the g-th chemotaxis, the h-th replication, and the l-th migration...

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Abstract

The invention relates to a sparse mobile sensing node perception coverage method balancing the packet loss ratio and data transmission time delay. A monitoring area is divided into square grids in thesame size, from an initial position, a mobile sending node selects the center of a neighbor grid of a present grid as position in next time, and a mobile sensing node path selection optimization model of the packet loss ratio and data transmission time delay is established; a modified bacteria foraging method is used to solve the optimization model, and an optimal movement path of the mobile sensing node is obtained; and the mobile sensing node senses data along the calculated optimal movement path, and all the monitoring area is covered. According to information including the position of themobile sensing node, the data storage capacity and data transmission time, the optimal movement path that can cover the whole monitoring area can be found, and the packet loss ratio and data transmission time delay can be reduced.

Description

technical field [0001] The invention relates to the field of wireless sensor networks, in particular to a sparse mobile sensor node perception coverage method that balances packet loss rate and data transmission delay. Background technique [0002] As an effective solution, wireless sensor network has been applied in many fields such as environment perception, military security and industrial control. In traditional static wireless sensor networks, nodes are randomly or manually deployed in a designated monitoring area, and the energy, communication range and sensing range of nodes are all limited. Due to the large area of ​​the monitoring area, the large number of nodes, and the wide deployment range, and the static wireless sensor network has problems such as fixed location and limited coverage, it is necessary to consider the movement of sensor nodes, that is, mobile wireless sensor networks. , MWSNs). In MWSNs, mobile sensor nodes are utilized for data collection. Mob...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W16/20H04W16/22H04W24/08H04W40/12H04W40/22H04W84/18H04L12/26
CPCH04L43/0829H04L43/0852H04W16/20H04W16/225H04W24/08H04W40/12H04W40/22H04W84/18
Inventor 陈友荣陆思一刘半藤赵克华王章权任条娟
Owner 绍兴市载沣智能科技有限公司
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