A pre-integrated GNSS/INS solution, which is versatile enough to fit into virtually any autonomous or mapping system, offers the best value in the long run for the following reasons:
1. Better performance: The manufacturer of a GNSS/INS solution specializes in fusing the GNSS receiver and the IMU in an optimal way. To accomplish this, both sensors are first synchronized, and then their output is run through a sophisticated Kalman filter algorithm. The device is then fine-tuned for optimal operation under various conditions. Finally, it is extensively tested and validated. While being used by numerous customers and in varying applications, the GNSS/INS proves itself on various levels such as accuracy and robustness. This results in superior performance, even in the most demanding environments. After installing the AsteRx SBi3 GNSS/INS system XenoTrack was able to extend its functionality to inspect longer distances of roads at higher speeds. The AsteRx SBi3 operates reliably, even in challenging environments, such as when driving near high cliffs or under bridges.
2. Less development time and costs: When building your own system, the development time can be estimated at about 1 year with 2 FTE (Full Time Employee) of GNSS/INS specialists. Hardware components need to be integrated and synchronized, while various interfaces as well as the Kalman filter need to be implemented. There may be additional features to be developed such as velocity input as well as tools for validation before the intricate step of performance fine-tuning. Finally, there are additional testing efforts needed for verification and validation of the device. When acquiring a pre-integrated GNSS/INS solution, on the other hand, it is reasonable to plan for only a few weeks of integration time, mainly for processing proprietary messages containing sensor data.
3. Faster time-to-market: A pre-integrated GNSS/INS system with easily accessible interfaces and flexible configuration ensures quick installation so that your product is ready within weeks. Compare this to the estimate above for in-house development of 1 year with 2 FTE's or 2 years with 1 FTE.