Autosteer technology has revolutionized agriculture by allowing tractors to be driven with greater precision. This technology takes advantage of GPS and other sensors to provide automatic steering so that human operators do not have to do it manually. It has increased the efficiency levels of farming and has helped farmers optimize their yields by reducing overlaps, minimizing skips, and reducing operator fatigue. In this article, we will explore how autosteer in tractors works and the technology behind it.
GPS
The Global Positioning System (GPS) is one of the core components of autosteer technology. GPS satellites are strategically placed around the earth to provide precise location information. The GPS receiver attached to the tractor receives signals from these satellites and uses them to determine the tractor's position. It uses this information to calculate the optimal path of the tractor. Autosteer technology uses this data to control the tractor's steering system, allowing it to follow the best path possible.
Hydraulic Steering
The autosteer technology requires a steering system that can respond accurately and quickly to the GPS instructions. The hydraulic steering system is used for this purpose. Hydraulic systems use liquid under pressure to transmit force, enabling greater control. The GPS system sends signals to the tractor's autosteer module, which, in turn, sends an electric signal to the hydraulic pump. The pump then starts operating, and fluid is pumped through the system, leading to the tractor's wheels' turning. The hydraulic steering system is responsive and can make rapid adjustments as required.
Correction Signals
While GPS technology is incredibly precise, it is not perfect. There can sometimes be errors in the location data, which could lead to mistakes in the autosteer system. To combat this, correction signals are employed. Real-time kinematic (RTK) correction is the method used in autosteer systems and is done with the help of a base station that transmits correction signals to the GPS receiver on the tractor. RTK corrects errors due to satellite drift, atmospheric conditions, and errors in the GPS receiver itself. This correction system provides sub-inch precision, enabling the autosteer system to make precise and accurate adjustments to the tractor's steering system.
Conclusion
Autosteer technology in tractors has revolutionized the agricultural industry by allowing for more efficient, cost-effective, and precise farming. The technology uses GPS and hydraulic steering systems to control the tractor's path accurately, with RTK signals to provide sub-inch precision. While the system is not perfect, it has significantly reduced the time farmers spend on the job, reduced operator fatigue, and improved the bottom line for farmers. With new technology continually emerging, the future of autosteer looks poised for even more significant advancements in the years to come.