The OSD (On Screen Display) is an instrument that provides the pilot with navigation information helping him to conduct a safe and conscious FPV (First Person View) flight. The information are imposed on an image from on-board camera, giving more control over the RC model and facilitating safe return to base.
OSD displays all key information about model:
- GPS position and time,
- altitude and speed over ground in metric or imperial units,
- course (CMG) and number of visible satellites,
- distance and direction to base,
- current, voltage and consumed energy for electric planes,
- way-points near to plane.
OSD with autopilot it can display additional information about:
- artificial horizon,
- barometric altitude,
- variometer (also provide acoustic vario signal),
- magnetic heading (compass).
With OSD FPV flights are safer. Pilot knows where he is and know way to home even in unknown terrain. The OSD with artificial horizon allow to continue flight in conditions of reduced visibility, for example in the cloud or at night. It also works as user interface for configuring autopilot. It displays menu and allow to choose between many options using included keyboard (locally) or RC channel (remotely).
OSD supports PAL and NTSC standards. The system automatically detects transmission standard from on-board camera and adjusts the information system. In case of loss of the signal from the camera, OSD continues to generate in the video standard in which the camera worked, allowing you to complete the IFR flight according to the instruments
The UAV Autopilot is the safety part of FPV system. It offer IMU based stabilization of the plane in hard conditions, flight through the waypoints and automatic return to base in case of RC link lost. UAV Autopilot offer 3 flying modes activated with free RC channel:
- Transparent mode (OFF), where signals from RC are redirected to servos
- Stabilization mode (STAB), where flight is automatically stabilized. User using his RC set desired angles of pitch and roll ordering to the autopilot to keep them
- Autonomous mode (AUTO), where autopilot continue flight to the next waypoint without user input.
Autopilot offer many mixers to allow wide choice of flying platform. Actually it support settings:
- Classic T
- Ailerons on 1 or 2 channels
- Flying wing
- V-tail or reversed V-tail
- Reverse on aileron, elevator and rudder
RC Autopilot can be configured using OSD. It displays menus with option to choose. Configuration can be done also in flight. http://www.rcgroups.com/forums/showthread.php?t=1811191
A friend has one but we haven't flown with it yet, looks good though.