APLICAÇÃO DE TECNOLOGIAS AUTÔNOMAS NA EXECUÇÃO DE SERVIÇOS DE TERRAPLENAGEM

ABSTRACT The combination of receivers of Global Satellite Navigation Systems (GNSS) and the kinematic positioning technique in real time (RTK) to construction machines allowed the increase of agility, precision, accuracy and productivity of earth moving, paving machines and compression. Machine control systems using GNSS-RTK allow full control of the position of the machine blades, allowing the operator to worry only about the direction. These systems are composed, in addition to GNSS receivers, UHF radio, angular sensors, rotation sensors, and on-board computer, which is responsible for compiling the information sent by each component, for eliminating errors arising from machine movements and for determining the position of the blade. However, it was noted that Brazilian companies are resistant to technology. One of the hypotheses that encouraged the study was that the adoption of technology required major changes in the way the company works and in human resources. In this way the present work sought to demonstrate the difference between conventional and satellite-assisted techniques, their gains and pre -requirements necessary for its operation, elucidates the problem faced by users. Keyword: Global positioning systems; Machinery; Earth moving