Sleeping scheduling method for detecting toxic gas in industrial sensor network

A sensor network and toxic gas technology, applied in network topology, electrical components, transmission systems, etc., can solve the problems of limited power of IWSNs wireless nodes, difficult leakage area range, chemical gas leakage, etc., to prolong network service life and reduce energy consumption small, efficiency-enhancing effect
CN105682169AInactive Publication Date: 2016-06-15GUANGDONG UNIV OF PETROCHEMICAL TECH
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
GUANGDONG UNIV OF PETROCHEMICAL TECH
Publication Date
2016-06-15
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a sleeping scheduling method for detecting toxic gas in an industrial sensor network, and the method comprises the steps: a CKN algorithm is applied in all nodes of the sensor network, K=1 is set, the least working nodes are used for maintaining whole sensor network global connectivity, sink nodes are used for calculating a region coverage range value of the working nodes and comparing a preset coverage range threshold with the above value, and a message about if adding the region coverage range is returned; if a working node satisfies the condition, a wake-up message is transmitted for a one-hop sleeping neighbor node of the working node, and the sleeping node is woken up. According to the invention, compared with the other scheme, the method of the invention in whole sensing field has the least energy consumption of the working node, the method improves efficiency of the sensor in industrial application, energy consumption is reduced, network use period is prolonged, and accuracy of the toxic gas detection is improved.
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Description

technical field

[0001] The invention relates to a sleep scheduling method for detecting toxic gas by an industrial sensor network, and belongs to the technical field of gas detection. Background technique

[0002] In large petrochemical plants, the monitoring of toxic gases is a key issue, which warns relevant personnel of potential risks and prevents explosions. With the advantages of easy deployment, small size, high energy efficiency, and flexible sensing nodes, IWSNs have become a promising approach for petrochemical plant designers and manufacturers to solve a critical problem, namely toxic gas monitoring.

[0003] Moreover, due to the invisibility of toxic gas, it moves quickly and changes shape at any time, so it is difficult to monitor the scope of its leakage area. In most toxic gas leakage accidents, different types of chemical gases will easily leak at the same time, causing the phenomenon of gas mixing.

[0004] The lifetime of traditional IWSNs is limited due ...

Claims

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