Побудова сенсорної mesh-мережі промислового інтернету речей на основі технології Bluetooth 4.2

Abstract

У даній статті розглянуто особливості технології сенсорних mesh-мереж на базі технології Bluetooth Low Energy (BLE) для моніторингу об’єктів управління. Описана технологія BLE. Проаналізовано можливість використання Bluetooth як бази для mesh-мережі. Розглянуто варіанти ініціалізації вузлів мережі, а також, адресацію і передачу даних між ними. Розглянуто способи реалізації mesh-мережі з використанням Bluetooth. Наведено реалізацію простої мережі на прикладі моніторингу температури і вологості повітря в лікарні.This paper considered features of technology of sensory networks based on the BLE format for monitoring objects of management. BLE format is described. The possibility of using Bluetooth as the basis of the mesh topology network is analyzed. Options for initializing network nodes as well as addressing and transmitting data between them are considered. The ways of creating of Bluetooth mesh-network are considered. The main goal of this paper is to show, that there is technology, that can be used for creating low energy and secure mesh networks without complicated realization on existing routing protocols. There are three main solution directions of creating bluetooth mesh networks communication: standart, academic and proprietary. Academic is the most ordinary and simple. So if network require dynamic reorganization of nodes, for example cars on roads - flooding based or dynamic routing will be the most effective, and if all nodes won`t be able to change its position like sensors in industrial manufacture - static routing solution will be exactly workable. The implementation of a simple network is illustrated by the example of monitoring the temperature and humidity in the hospital. As a result, we have easy implementational mesh topology network, built with the use of Bluetooth technology as the base. That also have Low Energy and high secure connection features along low price. Although there are no routing protocols created exactly for BLE - existing solutions can be integrated in implementations of similar systems. Also, description of the technology can give impuls to create an adapted communication protocol for routing between the nodes of the Blutooth mesh network.