Diseño e implementación de un dispositivo para la adquisición de datos meteorológicos y conectividad IP que se integre con la red de datos de Senagua en la cuenca del río Santa Bárbara

Abstract

In the Santa Barbara river basin, SENAGUA has in place a set of automatic weather stations for the climate study, which largely have a telemetry system. These are imported equipments, so installation is expensive, since the need of updates and to search the compatibility of sensors with the data acquisition system. For this reason, the aim of this project is to design and implement a system of automatic meteorological data acquisition, based on international standards such as WMO, ASTM and others, which operates similar to current operating stations. For the development of the prototype system, it has been used reverse engineering, instrumentation of the sensors and tropicalisation criteria for exposure to adverse environments, using three different platforms: PIC microcontroller, Arduino and Raspberry PI. The different architectures already submitted have been chosen according to three parameters of analysis for embedded systems. First, the cost analysis allows you to compare the costs that would be made by placing a Campbell Scientific weather station, currently operating in network SENAGUA with respect to each of the platforms on which the equipment has developed. Secondly, energy consumption analysis determines the number of solar panels required to power the system. In third place, the computational complexity establishes the difficulty (and therefore the manhours quantity) to implement algorithms required of each platform used. As a result the comparison of three different architectures is obtained, establishing a weather station with lower cost, lower energy consumption and lower computational complexity. The PIC microcontroller platform is the one that presents better performance based on the analysis parameters.