Self-adaptive wireless network connection method and self-adaptive wireless network connection system

Abstract

The invention relates to the field of a wireless sensor network and provides a self-adaptive wireless network connection method and a self-adaptive wireless network connection system. A transmission method comprises the following steps: dividing working periods of coordinators into time slot sequences consisting of continuous time slots, and numbering the time slots in the time slot sequences, wherein the numbered sequences consisting of numbers of the time slots have periodicity; virtualizing the coordinators working inside the time slots in the time slot sequences to be virtual coordinators corresponding to the time slots, and numbering the same time slots so as to correspond to the same virtual coordinator; sending connecting requests to the virtual coordinators by current activity general nodes; sending connecting request reply information to the current activity general nodes according to the quantity of the general nodes connected with each virtual coordinator via the current activity virtual coordinator. According to the self-adaptive wireless network connection method and the self-adaptive wireless network connection system, the network connection speed and networking speed can be quickened, and congestion packet loss caused by multiple simultaneous simulations is reduced.

Description

technical field [0001] The invention relates to the technical field of wireless communication, in particular to an adaptive wireless network connection method. Background technique [0002] With the rapid development of wireless network technology, more and more wireless sensor networks are used in people's lives, such as: ambient air cleanliness detection, temperature / humidity detection, wind direction detection or various data updates in public places, etc. . People plan to deploy a large number of sensor nodes in the target area, and these nodes can work for months or years without maintenance. In these environments, battery replacement and manual charging are nearly impossible to implement. Therefore, energy efficiency is key. In many practical applications, sensor measurement data is typically collected every few hours or even days. Therefore, the measurement data itself, such as temperature and humidity, can be represented by only one number, usually at a very low ...

AI Technical Summary

Problems solved by technology

Therefore, when a large number of general nodes request the coordinator to allocate protection slots at the same time, it will cause congestion and packet loss

And when the beacon interval (the time interval between two adjacent beacon frames sent) is very large, the consumption of keeping the beacon synchronization is high, and it is difficult to restore the synchronization after the synchronization is lost, resulting in the traditional adaptive wireless The network connection method has the problem of low transmission efficiency

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