New Inertial+ system for continuous position data

25 April 2008, 11:33am

Reliable, continuous positioning is critical for most surveying applications. However, when faced with problematic GPS conditions, such as near buildings or trees, GPS signals are frequently blocked or reflected.
With its newly developed Inertial+, OxTS offers an inertial navigation system that can be used with an existing GPS receiver to improve position measurements. By using a 6-axis IMU, the system is able to measure position and velocity even when GPS is not available. It is able to ignore or correct jumps in the GPS measurements which is ideal when surveying an urban environment.
The Inertial+ is easy to integrate with any GPS receiver model and will not only provide smooth position data but also output measurements like roll, pitch and heading. Data is read and output in NMEA format which is commonly used by many applications.
The Inertial+ includes the inertial sensors, processing engine and the algorithms. All that is needed is a high-accuracy external GPS, which most surveyors already have. By using an external GPS the price of the Inertial+ is significantly lower than fully integrated GPS-aided inertial navigation systems, yet the results are equally good.

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