Sistema de gestión de dispositivos IoT enfocados en escenarios de smart cities

Abstract

In this document the development of an application for the remote management and monitoring, is presented, with capabilities to integrate into scenarios designed for Smart Cities. Specifically, the application enables monitoring variables as: CPU load, memory usage, device temperature and power consumption. On a Raspberry Pi 4 with Raspberry Pi OS 1.4 as operating system, the installation of environmental and geolocation sensors as: pollution, temperature and light, furthermore, the use of a battery to power the node. In the node management task, the SNMPv3 (Simple Network Management Protocol) is implemented for resource management of the node. Thus, the user has the possibility to optimize system resources (sensors and power consumption). The application is developed in the framework Node-RED in a computer with the operating system Ubuntu 20.04. This application has a user interface and the capacity to connect to the IBM cloud for monitoring from the internet. The connection between the nodes is made through an Ad Hoc network, in the computer a default gateway is configured that allows the network connection to the internet from the Raspberry Pi. In order to emulate a multi-hop Ad Hoc network with four nodes, the NS3 tool is used, which allows to adapt the scenario to a real one by performing simulations using hardware on Linux containers, through real SNMP traffic is injected into the network in static and mobile scenarios, using static routing and the OLSR (Optimized Link Route State) protocol. Finally, an additional experiment was proposed considering a fifth node with displacement capacity. In the emulated network, the analysis of network metrics such as: throughput, percentage of packet reception, delay and the network bandwidth capacity are measured.