LN200- IMU (Inertial Measurement Unit) DATA INTERFACE/LOGGER
(project developped for the Swiss Federal Institute of Technology in Lausanne (EPFL))

CPU: Rabbit RCM3200
Flash: 512 KBytes
RAM: 256 KBytes

Interfaces:

• 1x Ethernet 10T
• 1x Serial RS-485
• 1x Synchronous serial SDLC

The LN-200 IMU data logger represents an ideal solution for demanding applications using GPS/INS software integration. The interface houses any existing GPS/GNSS receiver with 1PPS and NMEA/ZDA output.

It precisely synchronizes the incoming IMU data with GPS time and sends them over the Ethernet port. The high bandwidth of the communication ports easily handles up to 400Hz of IMU data that are logged on customer-provided PC. The precisely time-tagged data can be used for real-time or in post-mission GPS/INS integration.

Picture bellow presents test of the system, realized with the "Photo-Bus" developped by the Geodetic Engineering Laboratory.

Goal of test is to check precision of the system compared with the old system.

More detail are available on: http://topo.epfl.ch

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