Online failure detection method for industrial wireless sensor network

A sensor network, industrial wireless technology, applied in data exchange networks, transmission systems, digital transmission systems, etc., can solve the problems of difficult detection and low reliability.

Inactive Publication Date: 2010-09-01
HUAZHONG UNIV OF SCI & TECH
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Problems solved by technology

[0005] In order to solve the problems of difficult detection and low reliability in the prior art, the purpose of the present invention is to provide a wireless sensor network fault online detection method to detect network node sensors and network operating status, so as to maintain the normal operation of the network and optimize network

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  • Online failure detection method for industrial wireless sensor network
  • Online failure detection method for industrial wireless sensor network
  • Online failure detection method for industrial wireless sensor network

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Embodiment Construction

[0037] The network control management system sets parameters and presets for the network and each node before the detection is executed. The parameter list is shown in Table 1.

[0038] N

[0039] Table 1 Network control and management system parameter setting for network and nodes

[0040] get k The collected data of the secondary sensor network (the collection time is unified as t 1 , t 2 ,...,t k ), the network control management system analyzes each node in turn.

[0041] like figure 2 As shown, it is a flow chart of the online fault detection method for industrial wireless sensor network of the present invention. Include the following steps:

[0042] Step 201, the network control management system presets the initial node parameters shown in Table 1 for each sensor node to describe the state of the node, the initial parameter value represents the state of the node, and the sensor node credibility sequence (R 1 , R 2 ,...,Rp )| i (1≤i≤N) represents th...

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Abstract

The invention relates to a network fault online detection method of an industrial wireless sensor, comprising the following steps that: a sensor node collects sensing data at a plurality of time points and uploads the sensing data to a network control management system to carry out centralized processing; the network control management system calculates the difference value between the data instability of the sensor node and the data instability of network data; moreover, the network control management system calculates the reliability sequence of the node according to the difference value between the data instability of the sensor node and the data instability of network data within an entire time quantum, and initially judges whether the sensor node is suspected according to the reliability value; on the basis of the result of the initial judgment and the reliability sequence, the network control management system calculates the uncertain status distribution density of the suspectedsensor node and finally judges the failure of the sensor node according to the calculated distribution rule of the uncertain status of the suspected sensor node. The network fault online detection method provides a high-reliability and easy-implementation detection method of the industrial wireless sensing network.

Description

technical field [0001] The invention relates to the technical field of wireless sensor networks, in particular to an online fault detection method for industrial wireless sensor networks. Background technique [0002] Wireless sensor network (WSN) is a cutting-edge hot research field that is attracting international attention, involving highly interdisciplinary and highly integrated knowledge. Combining sensor technology, embedded computing technology, modern network and wireless communication technology, distributed information processing technology, etc., it can monitor, perceive and collect information of various environments or monitoring objects collaboratively in real time through various integrated micro-sensors, The information is sent wirelessly and transmitted to the user terminal through an ad hoc multi-hop network, thereby realizing the connection between the physical world, the computing world and the ternary world of human society. In a wireless sensor network...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/26H04L12/24
Inventor 胡海张帆李剑王怿
Owner HUAZHONG UNIV OF SCI & TECH
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