![]() ![]() By not overloading the blade, you improve track life and fuel efficiency. For example, if the grade to be cut is too deep, as evidenced by track slippage or high torque, the Smart Grade controller will automatically raise the blade above the design grade, take a manageable cut and allow you to return for a second or third pass, until you reach the design grade. This positioning information is then paired with the machine information such as engine torque, percentage load and vehicle speed relative to track speed, which allows the machine to calculate track slip, Wagner says.īy meshing positioning information and machine performance, the Smart Grade system determines if the machine is operating in the optimum productivity band or if some of the parameters related to the blade controls should be adjusted, says Wagner. ![]() The IMUs determine where the blade is relative to the body of the machine. The final component is a radio antenna to which RTK correction signals are transmitted from a base station on the jobsite. The controllers are connected to a Deere-branded monitor in the cab and integrated with GPS antennae on the cab roof. If they should fail or get damaged, replacement is as simple as unbolting the box and bolting on a new one, Wagner says. The IMUs are housed inside small, sealed, low-profile boxes to protect them from damage and dirt. The SmartGrade dozers take data from two IMUs, one on the body, one on the blade, rather than in-cylinder sensors such is on the Cat system. Second is Deere proprietary software which enables the AutoSmartGrade function. One is a Topcon RTK (real-time kinematic) controller that synthesizes information from various sensors. There are two main control aspects to the system. The Cat Grade with 3D system is factory installed only and is available on models D3K2-D6K2, D6N, D6T, D8T and D9T.ĭeere’s system combines technology from its dozer group with certain Topcon Positioning Systems components to accomplish its purpose, says Tammo Wagner, Deere manager, technology partner integration. ![]() svl file formats, although they can use a generic. It can also import LandXML (.xml) files, which is an international standard file format that most common engineering software companies use for transferability between office software systems. The design can be transferred to the display by either a thumb drive, or wirelessly over cellular or Wi-Fi signals.Ĭat uses Trimble Business Center – HCE office software to prepare 3D designs/models to be loaded into their systems, Hagemann says. Trimble’s software can also accept files created in several other civil engineering software systems such as Bentley and AutoCAD. Along with the 3D system, Caterpillar includes the AccuGrade Ready Option and the wiring and brackets to add other technologies if your application or jobsite calls for them. The system needs to only be calibrated once at install. As the operator comes closer to grade, the system will lock on the design and drive the blade up and down automatically to stay on grade. With Auto Carry turned on, as the blade load increases and the tracks start to slip, the blade will automatically rise to reduce the track slip and continue moving full blade loads. The operator starts moving material by lowering the blade. The Cat Grade with 3D system takes you from first pass to final grade, says Hagemann, and is designed to move the most material the machine can move efficiently. Depending on the machine model and blade type, the system will have up to three in-cylinder position sensors. Here’s how they work:Ĭaterpillar’s Grade with 3D system uses in-cylinder position sensors, which puts the sensor inside of the blade cylinders and out of harm’s way, says Scott Hagemann, Cat market professional. So, we thought it would be useful to compare them, side by side. But what they all have in common is the ability to do GPS dozer operators faster and more efficiently. Each of these systems (Caterpillar, Deere, Komatsu and Topcon) have different component architecture and functionality. ![]()
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