GPS Positioning of Some Objectives Which are Situated at Great Distances from the Roads by Means of a “Mobile Slide Monitor – MSM” - Cartography: A Tool for Spatial Analysis - page 167

Video Camera - DALSA
Pantera TF 6M8

Camera Link Frame
Grabber PIXCI E4

GPS - Antenna
NovAtel

GPS Receiver
ProPak - V3

Inertial Navigation System
SPAN-IMU - FSAS

Invertor - 700W
TS-700-212B

Desktop Computer
and LCD monitor

Auto
Supplimentary
Battery

Figure 13. The components of the Mobile Slide Monitor

In general, an INS system uses forces and rotations measured by an IMU (Inertial Measuring
Unit) to calculate position, velocity and attitude. Forces are measured by accelerometers in
three perpendicular axes within the IMU and the gyros measure angular rotation rates
around those axes. Over short periods of time, inertial navigation gives very accurate
acceleration, velocity and attitude output. The INS must have prior knowledge of its initial
position, initial velocity, initial attitude, Earth rotation rate and gravity field. Since the IMU