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Deployment method of wireless sensor network in the environment of irregular distribution of monitoring targets

A wireless sensor and target monitoring technology, applied in wireless communication, network topology, network planning, etc., can solve the problems of node energy depletion, network life shortening, waste of remaining energy, etc., and achieve good economic benefits, high load balancing, and The effect of reducing the number

Active Publication Date: 2019-12-10
SOUTH CHINA UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In this way, the area closer to the base station needs to forward more data, that is, it needs to bear more communication load, so the nodes in this area are easy to run out of energy in advance, that is, the energy hole phenomenon occurs
Energy holes will shorten the life of the network and waste a lot of remaining energy

Method used

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  • Deployment method of wireless sensor network in the environment of irregular distribution of monitoring targets
  • Deployment method of wireless sensor network in the environment of irregular distribution of monitoring targets
  • Deployment method of wireless sensor network in the environment of irregular distribution of monitoring targets

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Embodiment

[0041] This embodiment provides a method for deploying a wireless sensor network in an environment where monitoring targets are irregularly distributed. The process of the method is as follows figure 1 shown, including the following steps:

[0042] Step 1. Determine the initial required sensing range of the sensor node at each location according to the distance from the base station;

[0043] The specific process is as follows: firstly, a circular area centered on the base station is established as the distribution area of ​​the sensor network, and the distribution area is divided into N sub-areas of equidistant rings according to the distance from the base station, such as figure 2 Subregion A in 1 、A 2 and A 3 .

[0044] Second, set the sensor nodes in three sub-areas A 1 、A 2 and A 3 The initial required sensing range of , such as figure 2 As shown, it can be seen from the figure that the dotted circle gradually increases from the inside to the outside, that is, t...

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Abstract

The invention discloses a method for monitoring deployment of a wireless sensor network in a target irregular distribution environment. The method comprises the following steps: I, determining initialdesired sensing ranges of sensor nodes at different positions according to the distance away from a base station; II, determining local density and a local density level of monitoring targets according to a monitoring target distribution situation; III, determining actual desired sensing ranges of the sensor nodes according to the local density of the monitoring targets; and IV, deploying the sensor nodes based on greedy selection and a rebounding way to meet the basic coverage requirement and the load balancing demand. According to the method, the sensor nodes are distributed at higher density in a region closer to the base station and the sensor nodes are distributed at higher density in a region where the monitoring targets are distributed densely to further realize network load balance after the basic coverage requirement of node deployment is met, thereby greatly prolonging the network life.

Description

technical field [0001] The invention relates to the field of wireless sensor networks, in particular to a method for deploying a wireless sensor network in an environment where monitoring objects are irregularly distributed. Background technique [0002] Wireless sensor network is a new type of wireless self-organizing network, which organizes sensor nodes in a certain area through self-organization to realize information collection, signal processing and data communication. Wireless sensor network is the basis and core technology for building the Internet of Things. It has been widely used in many important fields such as military defense, agricultural production, industrial control, urban management, environmental monitoring, emergency rescue and disaster relief, and has been widely used by academic circles and experts from all over the world. The industry attaches great importance to it. [0003] In wireless sensor networks, the energy that sensor nodes can carry is very...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W16/22H04W16/30H04W84/18
CPCH04W16/225H04W16/30H04W84/18
Inventor 刘徐迅
Owner SOUTH CHINA UNIV OF TECH
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