Selecting method and system for network probing node of wireless sensor

A wireless sensor and node detection technology, applied in wireless communication, network topology, electrical components, etc., can solve problems such as the inability to apply active detection, the inaccessibility of other nodes, and the failure to consider the impact of node failures.

Active Publication Date: 2014-12-10
BEIJING UNIV OF POSTS & TELECOMM
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Problems solved by technology

[0004] When there is a faulty node in the network, the remaining nodes will be unreachable, and the node selection and deployment mechanism in the above method does not consider the impact of possible node failures in the network, so it cannot be applied to active detection of fault detection technology

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  • Selecting method and system for network probing node of wireless sensor
  • Selecting method and system for network probing node of wireless sensor
  • Selecting method and system for network probing node of wireless sensor

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Embodiment Construction

[0047] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0048] Such as figure 1 as shown, figure 1 A flow chart of a method for selecting a detection node in a wireless sensor network provided by an embodiment of the present invention is shown, and the method includes the following steps:

[0049] Step S1: Use the set of all nodes in the network as a shadow node set, and use the node with the largest degree among all nodes as the current detection node.

[0050] In this embodiment, the initialized shadow node set...

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Abstract

The invention provides a selecting method for a network probing node of a wireless sensor. The method comprises the following steps: selecting the node with the maximum degree as a first probing node; positioning a shadow node set in the network by utilizing the principle of an independent detecting path according to the selected node; selecting the subsequent probing node through the improved genetic algorithm based on the rule of removing the shadow node to the maximum. The invention also provides a selecting system for the network probing node of the wireless sensor. The system comprises a first selecting unit, a calculating unit, a determining unit, an updating unit and a second selecting unit. According to the selecting method and system for the network probing node of the wireless sensor, a fault node is actively probed, and the achievable rate of the probed node in the network is raised by selecting the optimal node set.

Description

technical field [0001] The invention relates to the technical field of wireless sensor networks, in particular to a method and system for selecting detection nodes of a wireless sensor network. Background technique [0002] Node faults in wireless sensor networks are divided into communication faults and data faults. Communication failures originate from node communication module failures or communication link failures (link congestion leads to data packet loss or delay, etc.), while data failures are mainly caused by sensor module perception errors, which lead to abnormal monitoring data collected and reported by nodes. The monitoring techniques for faults in wireless sensor networks are mainly divided into two categories: passive and active. Passive monitoring technology is applied to the detection of data faults, mainly referring to the distributed data fault detection scheme based on neighbor cooperation. Active monitoring technology is mainly used to detect node commu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W24/04H04W84/18
Inventor 杨杨周航邱雪松高志鹏李文璟
Owner BEIJING UNIV OF POSTS & TELECOMM
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