Design and Implementation of a Communications Circuit based on LoRa chip

Abstract

Forest fires are one of the main threats nowadays due to the consequences they have for the society and economy. During a wildfire, to obtain information about the status and evolution of the flames, communications systems become a key aspect in extinguishing the flames. These communications systems must provide real-time information to be useful. For getting the real-time feature, the sensors which obtain the data must be easy to deploy. This way, the sensors and the communications system will be carried by light mobile units. The communications protocols suitable for light mobile units work in high frequency bands. However, under rural environmental conditions, these bands have critical fading due to a high vegetation density and the orography. To avoid this fading, a design, and an implementation of a VHF (Very High Frequency) header for a LoRa (Long Range) chip has been presented and implemented in this paper.