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Wireless sensor network failure diagnosis method

A wireless sensor and network failure technology, applied in wireless communication, electrical components, etc., can solve the problem of mismatch between the antenna opening time and the number of transmitted data packets

Active Publication Date: 2011-11-09
北京泰豪信息科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, because the MAC layer (medium access control layer) protocol failure, the node in the sleep state is woken up, but the data packet is not received after the antenna is turned on, which will cause a mismatch between the antenna turn-on time and the number of transmitted data packets

Method used

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Embodiment Construction

[0081] The wireless sensor network fault diagnosis method of the present invention will be further described below in conjunction with the accompanying drawings.

[0082] Referring to the accompanying drawings, according to a wireless sensor network fault diagnosis method of the present invention includes specifically, the implementation of the method is divided into four stages, respectively: (1) data collection; (2) correlation matrix establishment; 3) Time dimension detection; (4) Space dimension detection.

[0083] (1) In the data collection stage, some counters should be added to the sensor node program first, and each counter is an integer occupying four bytes. These indicators respectively record measurements that can describe the state of the node. From the startup phase of the node, the counter starts to accumulate based on the corresponding events. For example, the counter RadioOnTimeCounter (antenna on time counter) is initially set to zero after the node is start...

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Abstract

The invention discloses a wireless sensor network failure diagnosis method, which belongs to the field of wireless sensor networks. The method comprises the following steps of: acquiring the data of a sensor node; establishing a relationship model among characteristic vectors according to the detection data; performing time dimension detection; performing spatial dimension detection; and judging an area with a failure according to a running decision making function value. By the zero-domain-knowledge-based sensor network failure diagnosis method provided by the invention, the correlation of node measurement values can be automatically detected, and the failure is detected by utilizing the correlation in time and spatial dimensions.

Description

technical field [0001] The invention belongs to the field of wireless sensor networks, and in particular relates to a fault diagnosis method for wireless sensor networks. Background technique [0002] In recent years, wireless sensor networks have been widely used in many scenarios that are closely related to the national economy and people's livelihood, such as environmental monitoring, coal mine accident detection, navigation in dangerous situations, and traffic flow monitoring. In a typical sensor network, a large number of sensor nodes form a network in an ad-hoc manner, and work together to transmit data back to the network base station through multi-hop. Due to the limitations of the current technological level and manufacturing process, the software and hardware of sensor nodes usually do not work perfectly, and are generally error-prone. At the same time, due to the use of wireless signals for data transmission between nodes, multi-path (multi-path), interference (i...

Claims

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Application Information

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IPC IPC(8): H04W24/04
Inventor 刘云浩刘克彬杨铮
Owner 北京泰豪信息科技有限公司
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