Poisonous gas monitoring method in wireless sensor network based on virtual node

A wireless sensor and toxic gas technology, applied in location information-based services, network topology, wireless communication, etc., can solve the problems of low monitoring accuracy, excessive energy consumption of wireless sensor networks, etc., to reduce the number of nodes, reduce Monitor the effect of spending

Inactive Publication Date: 2017-09-12
HOHAI UNIV CHANGZHOU
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] The purpose of the present invention is to solve the two problems of excessive energy consumption of wireless sensor networks and low monitoring accuracy in the current toxic gas monitoring scheme. Toxic gas monitoring method for monitoring information to reduce overhead, which ensures high accuracy of monitoring while optimizing energy expenditure of the monitoring process

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  • Poisonous gas monitoring method in wireless sensor network based on virtual node
  • Poisonous gas monitoring method in wireless sensor network based on virtual node
  • Poisonous gas monitoring method in wireless sensor network based on virtual node

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Embodiment Construction

[0061] The present invention will be further described below in conjunction with the drawings.

[0062] A toxic gas monitoring method based on virtual nodes in a wireless sensor network includes the following four stages:

[0063] (1), Node state scheduling setting stage: Set Sleep / Awake scheduling strategy for nodes from the perspective of saving network energy expenditure;

[0064] (2) Node selection stage at the toxic gas boundary: First, use the sensing information update to determine the boundary unaware node, and then select the boundary unaware node that is closer to the corresponding boundary sensing node as the boundary node;

[0065] (3). Virtual boundary node construction stage: In this stage, virtual boundary nodes are constructed between different boundary nodes in consideration of the distortion and non-distortion of the gas boundary graphics;

[0066] (4) Data uploading stage: using the idea of ​​a uniform grid, the grid selects the corresponding head node, gathers the in...

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Abstract

The invention relates to a poisonous gas monitoring method in a wireless sensor network based on a virtual node, and the method comprises the steps: (1), a node state scheduling setting stage: setting a sleep scheduling strategy for the node from the angle of network energy cost saving; (2), a gas boundary node selection stage: selecting a boundary non-sensed node which is closer to the boundary as the boundary node; (3), a virtual boundary node construction stage: building a virtual boundary node between different boundary nodes under the distortion and non-distortion conditions of a gas boundary pattern; (4), a data uploading stage: selecting a network head node through a uniform network idea, and gathering and uploading the information of all virtual boundary nodes in the network. The method can achieve the high-precision monitoring of poisonous gas, and reduces the monitoring energy consumption.

Description

Technical field [0001] The invention belongs to the field of wireless multimedia sensor networks, and specifically relates to a method for monitoring toxic gases by using a wireless sensor network, which monitors the entire gas target by monitoring the gas boundary in irregular dynamic changes. technical background [0002] In recent years, with the rapid development of sensor technology and wireless communication technology, wireless sensor networks (WirelessSensor Networks, WSNs) have been widely used in industries and other fields, and the monitoring of continuous targets is one of the most common application fields. Continuous targets are usually distributed in a wide area, and their shapes will undergo dynamic and irregular changes. For example, they may spread or shrink, increase or decrease in volume, such as toxic gases, floating oil bodies on the sea surface, etc. Different from the fixed size and small scale of the particle-shaped single target, the monitoring of contin...

Claims

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Application Information

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IPC IPC(8): H04W4/02H04W24/02H04W52/02H04W64/00H04W84/18
CPCH04W4/021H04W24/02H04W52/0212H04W64/00H04W84/18Y02D30/70
Inventor 韩光洁刘彬彬
Owner HOHAI UNIV CHANGZHOU
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