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Toxic gas boundary monitoring and tracking method based on double-layer mesh model in wireless sensor network

A wireless sensor and grid model technology, applied in network topology, wireless communication, electrical components, etc., can solve problems such as fast energy consumption

Active Publication Date: 2014-12-17
HOHAI UNIV CHANGZHOU
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Problems solved by technology

[0013] The purpose of the present invention is to solve the current problem of excessive energy consumption in the toxic gas monitoring and tracking scheme, and propose a toxic gas monitoring and tracking that achieves efficient energy utilization by reducing the communication traffic between nodes method

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  • Toxic gas boundary monitoring and tracking method based on double-layer mesh model in wireless sensor network
  • Toxic gas boundary monitoring and tracking method based on double-layer mesh model in wireless sensor network
  • Toxic gas boundary monitoring and tracking method based on double-layer mesh model in wireless sensor network

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Embodiment Construction

[0055] The present invention will be further described below in conjunction with the accompanying drawings.

[0056] A toxic gas monitoring and tracking method based on a double-layer grid model in a wireless sensor network, including the following three stages:

[0057] (1) Two-layer grid model division stage: Divide the wireless sensor network into multiple coarse-grained first-level grids, and then refine each coarse-grained first-level grid into multiple fine-grained second-level grids Grid, each first-level and second-level grid forms a cluster, and selects its own cluster head, which is the first-level cluster head and the second-level cluster head;

[0058] (2) Boundary node identification stage: When a wireless sensor network node finds that its sensing state has changed, it will report to the secondary cluster head to which it belongs, and the cluster head will summarize the received information packets, and then according to the cluster The current state information...

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Abstract

The invention relates to a toxic gas boundary monitoring and tracking method through a wireless sensor network. The method includes three steps of (1) dividing a double-layer mesh model by firstly dividing the whole screen into a plurality of coarse-grained first-stage meshes respectively forming a first-stage cluster and then dividing every first-stage mesh into a plurality of fine-grained second-stage meshes respectively forming a second-stage cluster; (2) recognizing a boundary node by reporting to the second-stage cluster which a node belongs to when a sensing state of the node changes and recognizing the boundary node according to node state distribution information of the second-stage cluster through the second-stage cluster; (3) tracking an objective boundary by dynamically tracking of the objective boundary according to the node state distribution information of the second-stage cluster through the second-stage cluster. By means of the toxic gas boundary monitoring and tracking method through the wireless sensor network, the monitoring and tracking for toxic gas can be effectively achieved, the amount of information transmission in a boundary recognition phase is reduced, the process of transmission of boundary information to a base station is optimized, the network energy is saved, and the life cycle of the network is prolonged.

Description

technical field [0001] The invention belongs to the field of wireless multimedia sensor networks, and specifically relates to a method for monitoring and tracking poisonous gas boundaries by using wireless sensor networks, and realizing tracking of the entire target by monitoring dynamically changing target boundary nodes. Background technique [0002] In recent years, with the development of sensing manufacturing technology and wireless communication technology, wireless sensor networks (WSN) have been widely used in military and civilian fields, among which the monitoring and tracking of continuous objects is the most important One of the common application fields. Sequential targets are often spread over a very large area and may spread, grow in size, or split into multiple continuous targets, such as toxic gases, moving cattle, and forest fires. Different from the fixed size and small-scale characteristics of a single target, the monitoring and tracking of a continuous ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W24/04H04W84/18
CPCY02D30/70
Inventor 韩光洁沈家伟朱川鲍娜钱爱华江金芳刘立
Owner HOHAI UNIV CHANGZHOU
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