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Partial overlapping layout method for sensors in wireless sensor network

A wireless sensor and layout method technology, applied in the information field, can solve the problems of not being able to improve the quality of network monitoring, prolonging the life time of wireless sensor networks, etc.

Inactive Publication Date: 2008-07-16
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The specific method is: determine whether the sensor works by judging the number of working sensors in the sensing area of ​​a certain sensor. Although prolonging the life time of the wireless sensor network, it cannot improve the monitoring quality of the network

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  • Partial overlapping layout method for sensors in wireless sensor network
  • Partial overlapping layout method for sensors in wireless sensor network

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Embodiment Construction

[0031] The embodiments of the present invention are described in detail below in conjunction with the accompanying drawings: this embodiment is implemented on the premise of the technical solution of the present invention, and detailed implementation methods and specific operating procedures are provided, but the protection scope of the present invention is not limited to the following the described embodiment.

[0032] This embodiment is used for a wireless sensor network composed of 10,000 sensors to monitor a square area whose length and width are respectively 100 meters.

[0033] This embodiment includes the following steps:

[0034] 1. First, make the sensing area of ​​the sensor in the wireless sensor network conform to the actual PIR sensing model. As shown in Figure 1, the sensing area is equally divided in twelve directions with the sensor as the center, which are 1, 2, 3... ...12. The sensing distances in the twelve directions are actually measured before the sensor...

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Abstract

The invention relates to a part covering and distributing method of a sensor in a wireless sensor network in the communication technology field, which comprises the following specific steps: the first step: a model is induced by PTR in an induction area of the sensor in the wireless sensor network; the second step: a frame sensor aggregation is led to make the whole network in 2-communication; the third step: the wireless sensor network enters to a selection stage and a stabilization stage; the time sum of the selection stage and the stabilization stage is a cycle T; in the selection stage, a monitoring area is divided into N zonal areas which are separate and parallel with each other; N zonal sensor aggregations are selected and respectively cover on the N zonal areas; when the finish is selected in a cycle, the zonal sensor aggregations enter to the stabilization stage; in the stabilization stage, each zonal sensor aggregation randomly selects a beginning working time in a time period (0, Tx(1-gamma)) and returns back to a dormant state after working for gamma T periods of time; gamma is a duty ratio and more than 0 and less than or equal to 1. The invention prolongs the life-span of the wireless sensor network and improves the monitoring quality of the network.

Description

technical field [0001] The invention relates to a method in the field of information technology, in particular to a partial coverage layout method of sensors in a wireless sensor network. Background technique [0002] Coverage in wireless sensor networks is a measure of the quality of service provided for monitoring and object tracking. With the popularity of wireless sensor network applications, more research work goes deep into the basic theoretical aspects of its network configuration, and the coverage problem is one of the basic problems that need to be faced in the design and planning of wireless sensor network. When a wireless sensor network covers a certain area, if any point in the area is perceived by at least k sensors, such coverage is called k-coverage (k-Coverage); if any two sensors in the network have k different paths , such a network is called k-connection (k-Connection). To achieve high monitoring quality, the network must at least 1-cover the monitoring ...

Claims

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Application Information

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IPC IPC(8): H04L12/28H04L29/08
Inventor 何弢徐昌庆
Owner SHANGHAI JIAO TONG UNIV
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