Telemetry
System
The
RC Logger telemetry system continuously monitors a numbers of parameters within
the airplane, including voltages, current, temperatures, pressures, speed,
altitude, distance and more. These data are recorded in flash memory in the
flight hardware and are simultaneously transmitted from the plane to a ground
receiver/display unit.
The
airborne system is powered by a separately switched, regulated +6.1V supply
within the plane. Its operation is enabled/disabled by a channel of the plane's
radio control receiver. The onboard data logger stores up to 4 hours of
continuous flight data in flash memory. Later, the stored data can be
downloaded from the plane to a PC via a USB cable for inspection, plotting,
analysis, and permanent storage.
The
airborne hardware consists of these five modules:
Data Logger Module
-
Stores ~4 hours of flight data in flash memory
-
Downloadable via USB to PC
-
Contains a RTC for date/time stamping of saved data
GPS Module
-
Lat/Lon
-
Speed over ground
-
Altitude
-
Distance and direction from the enable/first-fix location (usually, the
take-off location)
Environment Module
-
Temperature measurements at 3 locations (inside the fuselage and solar cells at
wing's root & tip)
-
Atmospheric pressure
-
Relative height above ground
-
Relative humidity
System Module
-
Battery voltage
-
Individual cell voltages
-
Motor RPM
-
Motor or solar current
2.4GHz Telemetry Downlink Transmitter
and Antenna
-
Transmits all data in real time from instrumentation to a ground
receiver/display unit for real time monitoring
Telemetry
System Photos
2.4GHz
Telemetry Ground Receiver and Display Unit
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