Mobility Device

Mobility device comprising a plurality of redundant processors configured for:

• processing movement commands for the mobility device;
• receiving sensor data;
• and
• executing a voting processor configured for determining whether the sensor data are valid data based on one or more of:
• whether the sensor data are within a range;
• whether said voting processor has received invalid sensor data;
• and
• whether communications exist among said processors;
• wherein the movement commands are based on the valid data.