m.MAVLink_sys_status_message(MAVLink_message) : class documentation

Part of mavlink View In Hierarchy

The general system state. If the system is following the MAVLink
standard, the system state is mainly defined by three orthogonal
states/modes: The system mode, which is either LOCKED (motors shut
down and locked), MANUAL (system under RC control), GUIDED (system
with autonomous position control, position setpoint controlled
manually) or AUTO (system guided by path/waypoint planner). The
NAV_MODE defined the current flight state: LIFTOFF (often an open-
loop maneuver), LANDING, WAYPOINTS or VECTOR. This represents the
internal navigation state machine. The system status shows wether the
system is currently active or not and if an emergency occured. During
the CRITICAL and EMERGENCY states the MAV is still considered to be
active, but should start emergency procedures autonomously. After a
failure occured it should first move from active to critical to allow
manual intervention and then move to emergency after a certain
timeout.