POS MV V4 User Guide
Introduction
Copyright © Applanix Corporation, 2009
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The system will remain in standby mode until you
command a change to another mode, or unless you have
enabled ‘AutoStart’. With AutoStart enabled, the system
will transition automatically into navigate mode.
Applanix ships the POS MV with AutoStart enabled.
Navigate Mode: Navigate Mode is the normal operating mode of POS MV.
Once you have selected this mode, the system will go
through several stages of navigate mode until it reaches
the final stage, which indicates that POS MV has reached
its full user-defined operating accuracy.
Subsystems
POS MV includes three subsystems: the PCS, IMU and two GNSS receiver
cards. The following paragraphs describe each subsystem individually and
Figure 1, page 1-2, shows these major components.
POS Computer System
The POS Computer System (PCS) comprises the processor, GNSS receivers
and interface cards necessary to communicate with and process the IMU and
GNSS data.
Inertial Measurement Unit
The IMU comprises three solid-state linear accelerometers and three solid-
state gyros arranged in a triaxial orthogonal array. These sensitive
components, together with the electronics to convert their analog outputs into
the digital information required by the PCS, are all contained in a sealed unit
that requires no maintenance.
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