Diseño de una red lora que permita la interconexión de sensores inalámbricos en la ciudad de Riobamba bajo el concepto de smart cities.

Abstract

The objective of this degree work was to carry out the design of a Network with LoRa technology, which allows the interconnection of wireless sensors in Riobamba city, especially in the urban area since more than 70% of its current population lives here. all this under the concept of Smart Cities or Intelligent Cities, this was done by taking around 1500 samples of the power levels through a transmitter and a receiver based on the LoRa ESP32 Wifi Module in four sectors of the city, Industrial Sector (Riobamba Industrial Park), Commercial Sector (Centro Historical), Residential Sector (Los Álamos, La Paz, La Didonato, La Primavera) and Leisure Sector (Sesquicentenario Park, Guayaquil Park, Ecológico Park). First, the tallest building or place within each of the before mentioned study sectors was determined in order to locate the Gateway and thus, with the help of a Mobile Node, be able to move through the entire study area obtaining each of the samples, this node has previously been configured to allow the display of the Received Signal Strength Indicator (RSSI), subsequently, from all the samples obtained, it was decided to choose only between 9 and 13, which border the range of -117 dBm to -125 dBm and different Spreading Factors (7, 9, 10 and 12), depending on the distance found the LoRa Node of your Gateway, these parameters are considered optimal to be able to provide a correct transmission and reception of data within the city. With the samples obtained, a LoRa Network was designed that covers around 200 hectares within the city, consists of 113 optimal locations for the network sensors, strategic locations that provide Diseño de una Red LoRa que permita la interconexión de sensores inalámbricos en la ciudad de Riobamba bajo el concepto de Smart Cities. coverage to educational units, hospitals, shopping centers, markets, parks, government buildings, parking lots, bus stops, among others, 11 optimal locations for LoRa Gateways and 24 WiFi Access Points available from the local network that the City of Riobamba has in each of the study sectors.