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Event detection method of wireless sensor network

A wireless sensor and network event technology, applied in wireless communication, network topology, electrical components, etc., can solve the problem of difficult access to node location information, achieve real-time event detection, no need for location information, and high accuracy of results

Active Publication Date: 2015-06-24
RUN TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Furthermore, in order to detect the occurrence area of ​​an event, most applications also require the location information of sensor nodes (each node needs to install a GPS module), but node location information is difficult to obtain for most large-scale sensor networks

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  • Event detection method of wireless sensor network
  • Event detection method of wireless sensor network
  • Event detection method of wireless sensor network

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Embodiment Construction

[0036] Since most of the existing event detection implementations in wireless sensor networks are based on predefined models or inefficient network data query techniques, then whether there is an implementation that does not require models and queries, the present invention can firstly start from the prototype system Set out to explore this approach. Use 40 Telosb Motes nodes to build an experimental platform, such as figure 1 Shown, revealing the data distribution when the event occurs. figure 1 Described are the nodes of the basic implementation scenario platform of the present invention, which are composed of 40 Telosb nodes, and the distance between each node is equal. We choose the node in the lower left corner as the base station node, and then use a heater to simulate a fire event. By analyzing the data obtained from the base station nodes, it is used as a verification process of the present invention.

[0037] Use a heater to heat an area for 50 seconds to simulate ...

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Abstract

The invention discloses an event detection method of a wireless sensor network. The event detection method includes firstly calculating coding spending gradient according to a routing node tree, determining an event mode and closet event area size, and backtracking from a base station node to an event node according to the coding spending gradient. The event detection method of the wireless sensor network is based on data distribution compression ratio, is free of model constraint, small in detection expending, relatively high in result accuracy and capable of performing event detection on large-scale wireless sensor networks in time.

Description

technical field [0001] The invention relates to the technical field of wireless sensor networks, in particular to a wireless sensor network event detection method. Background technique [0002] With the increasing maturity of communications, sensor manufacturing, and embedded computing, large-scale wireless sensor network technology has developed rapidly and has been widely used in all aspects of people's lives, such as environmental monitoring, national defense, health inspection, traffic control, disaster relief, urban management, etc. field. A typical wireless sensor network is composed of a large number of cheap sensor nodes (resource-constrained hardware devices and self-organizing working methods), which can be quickly deployed in different environments, and form a network through wireless self-organization. Will be limited by existing wired network infrastructure. The sensing data of sensor nodes is collected to the data processing center through wireless communicat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W24/00H04W84/18
Inventor 连朔何源赵季中刘云浩
Owner RUN TECH CO LTD