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Cooperation deployment method of mixed sensing nodes under uncertain environment

A sensor node and sensor node technology, applied in electrical components, wireless communication, network topology, etc., can solve the problems that sensor nodes are not practical, data is not always reliable, and it is difficult to obtain results

Inactive Publication Date: 2014-07-23
SUZHOU UNIV
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

However, a key issue affecting deployment is that the data sensed by sensors is not always reliable due to many uncertain factors
[0004] In many detection environments, such as remote mountainous areas, battlefields, areas polluted by toxic gases, etc., it is impractical to manually deploy sensor nodes
A feasible method is to randomly sow in the monitoring area, but this method is affected by many uncontrollable factors, and it is difficult to obtain the desired effect

Method used

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  • Cooperation deployment method of mixed sensing nodes under uncertain environment

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Embodiment 1

[0029] Embodiment 1: A collaborative deployment method of hybrid sensor nodes in an uncertain environment, comprising the following steps:

[0030] 1. Detect coverage holes:

[0031] 1-1) According to geographic location (x i , y i ) spread the sensor nodes to the specified area, and locate the position of each sensor node; the number of sensor nodes is n, i is an integer from 1 to n, x and y are the coordinate values; in the sensor node, there is N static nodes and M mobile nodes, the static node set is S ={ s 1 , s 2 , … , s N}, the mobile node set is V 1 ={ v 1 , v 2 ,... v M }, n = N + M ;

[0032] 1-2) N static nodes and M mobile nodes are deployed in an L×L area, and the area is divided into grids of the same size, each grid is a square with a side length of 1 meter; for node i, the observed The received signal is expressed as:

[0033] i=1, 2... n (1)

[0034] In the formula, H 1 Indicates that the target appears, H 0 Indicates that the ...

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Abstract

The invention discloses a cooperation deployment method of mixed sensing nodes under an uncertain environment. The method comprises the steps that on the basis of cooperation of moving nodes and static nodes, firstly a coverage hole is determined by calculating the detection probability of the nodes according to a designed detection model, and then a method based on bipartite matching is adopted to determine the positions of the moving nodes. The nodes can be evenly deployed in a detection area with the method, and the method widely adapts to automatic detection of the large-range environment in the wild.

Description

technical field [0001] The invention relates to a wireless sensor network, in particular to a method for cooperatively deploying sensor dynamic and static hybrid nodes in an uncertain detection environment. Background technique [0002] A wireless sensor network (Wireless Sensor Network, WSN) is a wireless network composed of a large number of stationary and / or moving sensors in a self-organizing and multi-hop manner. By using various types of sensors, it is possible to detect a variety of signals in the surrounding environment such as earthquakes, electromagnetics, temperature, humidity, noise, light intensity, pressure, soil composition, size, speed and direction of moving objects, etc., through various The cooperation between sensors senses, collects, processes and transmits the information of perceived objects in the geographical area covered by the network, and sends it to the observer. [0003] In recent years, wireless sensor networks have received widespread attenti...

Claims

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Application Information

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IPC IPC(8): H04W16/18H04W24/00H04W84/18
Inventor 张书奎贾俊铖王进常燕
Owner SUZHOU UNIV
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