- Oxford Technical Systems has designed a low cost 2D mobile mapping system.
- If you can live with 10 – 15 cm then this could be worth investigating.
- Alignment of the scanner and GPS/IMU is critical.
Oxford Technical Solutions – OXTS, has announced a low cost approach to building a mobile mapping system using a Riegl Q120 2D scanner. If your accuracy requirement is in the 10 to 15 cm range, which may be “good enough” for many planning applications, this concept may be worth considering.
OXTS combines their GPS and inertial guidance unit, the RT2002 to support the scanning of one side of the street at a time. The time stamp from the GPS is used to tag the laser scanner point data. You can reduce the cost further if you have your own GPS unit.
Mounting and aligning the 2 units requires attention to detail in order to obtain the correct offset. This step can be simplified by using a fixed frame as seen here.
Thoughts?
