System of microstations of data acquisition for wirelessmonitoring of the microclimate in crop areas

摘要

The weather is a key factor for outbreaks of plant diseases. Therefore, the monitoring of climate is essential to any intelligent system of cultivation. Usually, such monitoring is carried through agrometeorological stations that acquire data like temperature, humidity, wind speed and leaf wetness. Unfortunately, the high cost of stations limits the number of monitoring points within the same area. This forces the use of tools of mathematical interpolation. However, such procedure does not lead to good results in the estimation of precipitation and leaf wetness. In this work was developed a monitoring system, composed for a set of microstations of data acquisition. They presented low cost and highest autonomy. Therefore, they can be installed throughout the area of cultivation, collecting data like temperature and leaf wetness. The microstations communicate with each other through wireless communication. Thus, daily, the data collected are transferred to a central station, where become available for analysis. The system made it possible to monitor the entire area of cultivation, providing reliable data, which make it possible to characterize the microclimate. This makes it possible to, for example, the efficient use of pesticides, reducing production costs and generating healthy foods.