Surface Systems & Instruments, Inc.

CS7900 Real Time GPS Tool for Mills & Grinders

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At a Glance

Eliminate the need for marking paint and excess lane closures when preparing for corrections. The CS7900 Real Time GPS tool installs on pavement milling and grinding machines. Navigate along previously collected inertial profile data with configurable display of pavement elevations, localized roughness, projected areas for corrections, and more.

As GPS receivers become more accurate, we are able to rely on the coordinates for more applications. With rapid GPS frequencies and accuracies near 0.3 feet (0.1 meters) without a base station, the SSI Profiler program can navigate to defects based on the locations tagged in the profile. The grinder operator, or technician with the laptop, can find the areas of roughness with only a GPS signal.

When mounted on a grinder the laptop can direct the operator to the grind locations without laying paint on the ground and with only one lane closure.

 

Benefits

GPS based navigation is superior to distance based navigation due to the errors introduced by a pneumatic tire:

  • Speed changes
  • Temperature changes
  • Path discrepancies
  • Distance calibration error

All of these points do not affect GPS navigation.

Limitations

As long as the system is receiving a GPS signal, the system will show the current position. Areas with limited sky-view effect GPS signal and result in a lower position accuracy.

The multiple options for GPS accuracy range from 0.05 to 0.70 meters. The system must use the host vehicle specific offsets for the greatest precision.

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At a Glance

Eliminate the need for marking paint and excess lane closures when preparing for corrections. The CS7900 Real Time GPS tool installs on pavement milling and grinding machines. Navigate along previously collected inertial profile data with configurable display of pavement elevations, localized roughness, projected areas for corrections, and more.

As GPS receivers become more accurate, we are able to rely on the coordinates for more applications. With rapid GPS frequencies and accuracies near 0.3 feet (0.1 meters) without a base station, the SSI Profiler program can navigate to defects based on the locations tagged in the profile. The grinder operator, or technician with the laptop, can find the areas of roughness with only a GPS signal.

When mounted on a grinder the laptop can direct the operator to the grind locations without laying paint on the ground and with only one lane closure.