TeeJet SmartPad II, User Manual

Page: 115 / 198

SmartPad II
Software Version 4.02
Chapter 3 - Real-Time Guidance 3-61
Lightbar Curved Guidance Graphics
Lightbar Curved Guidance Graphics
SmartPad II’s two curved guidance techniques employ a lightbar text display graphic that will aid the operator when
navigating parallel to a curved swath. The X-Track LED functionality that is employed in Parallel mode is also
employed when driving curved guidance.
A projected swath-path graphic is displayed in the text display area of the lightbar, see Figure 3-84. This projected
path is made up of four horizontal bars. The bottom bar is closest to the vehicle and the top bar is the path furthest
away. The width of the bars decrease as they move away from the vehicle, this adds a perspective view to the path
ahead of the vehicle. The projected distance the first bar is away from the vehicle is based on the vehicle speed. The
lightbar in Figure 3-84 informs the user to drive straight, and there are no turns approaching. In Figure 3-85 the light-
bar indicates the vehicle is approaching a turn to the right. The X-Track LEDs indicate that the vehicle is slightly to
the right of the guideline. Lightbar X-Track LEDs were set up in Swath mode, therefore the user will need to correct
to the left to get back on line. The X-Track LEDs do not provide any information relating to the curved path ahead of
the vehicle, they only indicate where the vehicle is with respect to the guideline at the current vehicle location.
A Note on Driving Curved Guidance
Driving curved guidance may not be initially intuitive. In fact, it may be initially frustrating! Patience will be
required. A new user to guidance may require a few hours of practice before they will feel comfortable driving curved
guidance. Remember when in doubt, slow down and look at the display.
Figure 3-84: Curved Guidance Lightbar Graphics
Figure 3-85: Right-Hand Turn Ahead