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GPS/GNSS+ Overview
The G-100+/200+ can measure distance and speed using either
the GPS/GNSS signal or a traditional wheel speed sensor. For most
customers GPS/GNSS alone will provide excellent results with accuracy
comparable to a well calibrated wheel sensor.
However, like any GPS/GNSS system, accuracy can be degraded
when operating in heavily built-up areas or under dense forest cover.
To address this limitation the G-100+/200+ includes unique GPS/
GNSS+ sensor fusion technology. This works by combining the output
signals from a wheel sensor and the GPS/GNSS receiver. While the
GPS/GNSS signal is available the GPS/GNSS+ software continuously
calibrates the wheel sensor in the background. If the GPS/GNSS signal
is subsequently lost operation is automatically switched to the wheel
sensor. The result is uninterrupted high accuracy operation in any
environment without the need to manually calibrate a wheel sensor.
GPS/GNSS Only
Wheel Sensor Only
GPS/GNSS+ Sensor Fusion
Mode
Note: To use the GPS/GNSS+ function simply install a wheel sensor
as well as the GPS antenna. The software will automatically detect the
sensor.
