5
control smoothly, without the height and surface texture restraints. No
frequent switching between various modes, the speed can be accreted to
0.1m/s or less.
6.
Automatically turn into hovering state when receiver signal is lost (enter the
Fail Safe mode).
1.1.2 Hardware System
1.
Improve the accuracy and real-time performance of the controller by using
2 separate DSPs (digital signal processor) to calculate altitude and control
algorithm.
2.
Provide superior position accuracy by using a high performance 16-channel
GPS receiver.
3.
Enclose high-reliability tri-axial gyroscopes and accelerometers of MEMS.
4.
Building algorithm can facilitate users to do the hard and soft iron magnetic
field compensation for eliminate the magnetic interference.
5.
The system dedicates CPLD to decode and encode servo signal for higher
reliability and compatibility for most RC receivers.
【The Basic Performance Parameters】
Hover positioning accuracy
○
1
Maximum wind
resistance
Vertical
±1m
Horizontal
±2m
5.5~7.9m/s
Note:
○
1
:
These parameters are measured in the condition of breeze (wind speed less than 3.3m/s). If in heavier
wind, the accuracy will be little lower.
1.1.3 Control Mode
【Autopilot Mode】:
In this mode, the altitude can be locked; the nose direction and the
helicopter’s velocity command, back and forth, left and right, up and down, can
be issued by RC separately and get accurate feedback control through on-board
automatic control algorithm. Even people, who are flying the RC helicopter for their
first time, can learn to control the helicopter in few minutes.
There is a hovering zone
○
1
in the middle of the RC stick. When the RC stick goes
back to the middle and enters the hovering zone, the system will make the
Содержание XP3.1
Страница 45: ...45 Appendix D Mechanical Drawing All units are in millimeter in following 1 Structure of Main Controller box...
Страница 46: ...46 2 Structure of Adapter box 3 Structure of anti vibration frame...
Страница 47: ...47 Front view of Main Controller in frame Right view of Main Controller in frame 4 COMPASS GPS MODULE DRAWING...