This paper presents the tests of a telemetry system (T-SADA) to be adapted to the management of agricultural mechanization using a self-propelled combine harvester to harvest soybeans and rice. The system consists of collecting and sending data of a moving point (a farm machine) to a fixed base (a computer server) and makes the integration of two means of transmission and validation of data (providing fault tolerance). The means of data transmission used were the technology of mobile telephony, GSM / GPRS and radio frequency through the Zigbee. The T-SADA is redundant because it has more than one form of transmission, which ensures the transmission of information even if a media is not able to operate correctly at any given time. Priority is given to the transmission GSM / GPRS and leaving the ZigBee as an alternative means, controlled by an engine fault detection. The results were satisfactory ensuring the transmission of data with fault tolerance and redundantly in remote locations and in different relief.
data acquisition; mobile telephony; radio frequency