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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

Inactive Publication Date: 2016-06-15
GUANGDONG UNIV OF PETROCHEMICAL TECH
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Problems solved by technology

[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 gas mixing
[0004] Traditional IWSNs have a limited lifespan due to the limited power of wireless nodes

Method used

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  • Sleeping scheduling method for detecting toxic gas in industrial sensor network
  • Sleeping scheduling method for detecting toxic gas in industrial sensor network
  • Sleeping scheduling method for detecting toxic gas in industrial sensor network

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Embodiment Construction

[0031] The present invention will be further described below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.

[0032] The industrial sensor network of the present invention detects the sleep schedule method of poisonous gas, comprises the following steps:

[0033] 1) Hazard classification and selection of head node in gas leakage area

[0034] We assume that all deployed sensor network nodes know their geographical area and geographic location according to GPS. We divide the degree of danger according to the type of gas and the probability of possible leakage, and obtain the division of each degree of danger after gas leakage, referred to as the gas leakage area, using A i To represent the gas leakage area where the i-th gas is located, the gas leakage area is determined by the boundary node according ...

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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.

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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Application Information

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IPC IPC(8): H04W40/04H04W40/10H04W52/02H04W84/18H04L29/08
CPCH04L67/12H04W40/04H04W40/10H04W52/0212H04W84/18Y02D30/70
Inventor 米顿舒磊孙志宏傅树霞王海晖
Owner GUANGDONG UNIV OF PETROCHEMICAL TECH
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