Internet of Things sensing layer topology control method

Abstract

The invention discloses an Internet of Things sensing layer topology control method. According to the method, an Internet of Things sensing layer wireless sensor network topology structure is established, data transmission is conducted based on the Internet of Things sensing layer wireless sensor network topology structure, and the Internet of Things sensing layer wireless sensor network topology structure is maintained. Due to the fact that cluster head nodes are selected layer by layer by means of positioning nodes during cluster head election, the selected cluster heads are distributed more evenly and reasonably. A aggregation node does not need to know the global information of a network, only small-range broadcast is needed, the increase of the number of nodes has few impacts on the method, data are forwarded through replay nodes and the cluster head nodes together during data transmission, the optimal path for forwarding is already determined during election of the cluster head nodes and the relay nodes, seeking of the optimal path is not needed, and energy consumption of the cluster head nodes is saved.

Description

technical field [0001] The invention belongs to the technical field of the Internet of Things, and in particular relates to a topology control method of the perception layer of the Internet of Things. Background technique [0002] The Internet of Things is a ubiquitous network built on the Internet. By organically combining the existing networks to form a unified whole, the wireless sensor network is one of the most important sensing technologies in the sensing layer of the Internet of Things. The topology of wireless sensor networks is very different from that of previous wired networks. Node resources of wireless sensor networks are extremely limited and are often deployed in harsh environments. However, in a large-scale Internet of Things composed of wireless sensor devices, due to the influence of many actual network factors such as hardware defects of the sensor's own equipment and various environmental factors, the network topology and other information learned by the ...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a topology control method for the sensing layer of the Internet of Things, which effectively solves the problems of unreasonable distribution of cluster head nodes, unbalanced energy consumption, and difficulty in finding the optimal route in the clustering topology control of the sensing layer of the Internet of Things

Images