Raven RGL 600 - Smartbar Tilt Upgrade Option

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SMARTBAR TILT UPGRADE OPTION

The Smartbar Tilt Upgrade Option provides straight parallel swath guidance on fields that

are not level. This option corrects position errors that occur when an applicator machine

moves over an uneven field.

For accurate DGPS signal reception, the GPS antenna is usually placed on the highest part

of the applicator machine. This may be on top of the operator’s cab. The antenna height may

be from about 8 feet to about 20 feet. If the surface of the field is not level, this antenna

position and the center of the applicator boom are not in the same place. The difference be-

tween the antenna’s position and the center of the boom is tilt error (see diagram on this

page). If a field’s surface along a swath line is not uniformly at the same tilt angle, swath paths

created by following the DGPS position will not be straight. If the field’s surface between

adjacent swath’s is not at the same tilt angle, the swath patterns created by following the

DGPS will leave gaps or overlap.

The Smartbar Tilt Upgrade Option measures the machine tilt using a solid state inclino-

meter. Once the machine’s tilt is determined, the “error” can be calculated and corrected.

This tilt correction provides for straight parallel swathing on fields that are not level.

As a machine moves along a swath path, various bumps in the field and the machine’s

vibration can cause erroneous inclinometer tilt readings. The Smartbar filters these tilt read-

ings to eliminate most of these errors. During the Smartbar IAS (Inertial Augmentation

System) configuration, the user can adjust this filter for very rough fields with only gradual

changes in slope or very smooth fields with abrupt changes in slope.

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Tilt

Angle

Error

Tilt Sensor Upgrade Option Installation

The Tilt Sensor Upgrade Option is installed into a new or existing Smartbar at the factory by

adding the Tilt Sensor (inclinometer). A Smartbar, with the Tilt Sensor Upgrade installed, can

use Smartbar firmware updates to the IAS as they become available.

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Raven RGL 600 - Smartbar Tilt Upgrade Option

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