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Guilin Feiyu Electronic Technology Co., Ltd

 

Guilin Feiyu Electronic Technology Co., Ltd            http://www.feiyudz.cn            E-mail: [email protected]              Page 1

 

                       

FY-DoS for multi-rotors control manual 

Installation & Operation        Multi-rotor firmware above V2.10

 

 
 

Dear Customer: 

Thank  you  for  choosing  DoS  as  your  autopilot  system.  Please  read  this  manual 

carefully before using the system to ensure proper use and operation. 

The  installation  and  use  of  this  device  require  some  skill  and  knowledge  in  flying 

remote controlled airplane model.   

 

If  you  are  a  complete  beginner  and  have  never  flown  one  before,  we  do  not 

recommend you install this device on your own.   

 

Please  find  assistance  from  an  experienced  RC  pilot  who  may  provide  you  with  the 

basic knowledge required to use this device successfully.   

 

If  you  are  already  an  experienced  flyer,  you  will  find the  DoS  installation  to be  easy 

and logical. Just follow this manual and you won’t go wrong. 

If you need any technical support you can send e-mail directly to:

 [email protected]

 

 

DoS module   

DoS is an Attitude Flight Stabilization System (AFSS) and autopilot system.Now can 

be used for automated stabilization of fixed wing aircrafts,and after upgrade firmware can 
be used for other aircraft and equipment control (For more details of DoS,please refer to 
the latest firmware and the instructions).

 

DoS has integrated three-axis gyro ,three-axis accelerometer,three axis magnetometer 

and  barometric  pressure  sensor.  DoS  can  accurately  measure  flight  attitude,  the  earth 
azimuth  and  through  the  barometer  to  measure  relative  altitude. 

This  manual  mainly 

introduces DoS firmware for Multi-rotor flight system. 

The  firmware  for  Multi-rotor  flight  system  above  V2.10  can  realize  the  following 

functions:( We will continue  updating new firmware to improve performance and update 
functions, please pay attention to the latest news FeiYu official website (www.feiyudz.cn) 
posted.) 

 

Attitude Stabilized Mode 

Dos  can  auto  stabilize  the  aircraft  flight  attitude  in  this  mode,  pitch  and  roll  stick 

center position for 0 °attitude,its endpoint is 45 ° , pitch and roll stick can linear control the 
flight attitude, maximum angular velocity is 150 ° / s. Yaw stick in the center position will 
lock current course , its endpoint corresponding maximum rotation rate 135 ° per second, 
yaw stick can linear control  the aircraft rotation rate. Throttle stick direct control aircraft 
climb and decline, climbing and declining rate is directly related to the throttle.   

 

Hovering Mode 

The  GPS  Module  must  be  connected  to  the  DoS  with  at  least  5  GPS  satellites 

detected.In  this  Mode,  pitch,  roll,  yaw  control  method  is  the  same  as  Attitude  Stabilized 
Mode.DOS can auto control flight altitude.Climbing and descending rate is directly related 
to the throttle, when the throttle stick is in the center position,DOS auto locks the altitude, 
in maximum means climb rate is 3 m/s, in minimum means decline rate is 1.5 m/s.Throttle 
stick  can  linear  control  the  aircraft  climb  and  decline  rate.Pitch,  roll  sticks  released  will 
lock  the  position  when  GPS  signal  is  adequate,non-released  will  equivalent  of  Attitude 
Stabilized Mode. 

Feiyu Tech 

Содержание DoS

Страница 1: ...rately measure flight attitude the earth azimuth and through the barometer to measure relative altitude This manual mainly introduces DoS firmware for Multi rotor flight system The firmware for Multi rotor flight system above V2 10 can realize the following functions We will continue updating new firmware to improve performance and update functions please pay attention to the latest news FeiYu off...

Страница 2: ...unction by combing them First Person View FPV Can be connected to the Hornet OSD the flight data overlay to video output and through the vodeo transmission system to send back let you enjoy the fun of FPV And it will be easier to operate FPV with the functions of automatic balance Hovering and Auto Return To Launch Real time telemetry real time monitor Real time telemetry real time monitor the fly...

Страница 3: ...PS and UART interface GPS module interface The GPS pin interface consist of GND 5V RX0 The characteristics are Baud rate 38400 Data bits 8 Stop Bits 1 Parity None Interface Features TTL level No 1 2 3 4 RC receiver interface SW1 RUD Servo THR Servo ELE Servo GND Power 5V AIL Servo SW2 position 1 2 3 servo signal output 900 1200US 1200 1800US 1800 2100US function stabilized mode Hovering Mode Auto ...

Страница 4: ...s as follows Physical connection diagram Put the 4P Y line inserted into DoS s GPS port Data Radio interface The UART pin interfaces consist of GND power 5V TX1 RX1 The characteristics as follows Baud Rate 19200 Data bits 8 Stop Bits 1 Parity None Interface Features TTL level This pin interfaces connects to the Data Radio PC computer serial port or OSD module You can set DoS control parameters and...

Страница 5: ...rvos for a long time will cause the Camera Gimbal servos overheat 2 If you use DoS to control Octocopter aircraft S7 and S8 ports will not output Camera Gimbal control signal any more 5 Power Supply DoS input voltage is 4 0 6 0 V you can use a stabilized voltage supply or directly use ESC s 5 V power supply most of the ESC power supply can meet the requirements DoS and the RC receiver use the same...

Страница 6: ... unable to keep the flight altitude and position You can use your own DIY shock absorbing devices to do the shock absorbing but we recommend using suspending damping installation especially use DoS vibration absorbing mount which product by FeiYu Tech it can meet the requirements of most of the conditions and in addition you need to try to reduce the vibration of the motors and oars Installtion po...

Страница 7: ... recommed using suspending damping installation especially use DoS vibration absorbing mount which product by FeiYu Tech You can find purchase method from FeiYu official website www feiyudz cn Installation process as follows You need a allen driver 1 Use screws to install the four support columns on the baseboard 2 Stick the solid foam pads dampers to the cover board four interior Angle position ...

Страница 8: ... improve the damping effect you can stick copper sheet or other sheet metal which cannot be magnetized on the bottom of the DOS Otherwise the magnetized sheet metal will disturb the internal magnetic field sensors 4 Use screws to fix the cover board to the four support columns 5 Stick the circular ring foam pads dampers to the four rounded corners on the baseboard vibration absorbing mount Then fi...

Страница 9: ...els are required to control the DoS Flight Modes a 3 position switch SW1 d the other 3 position switch SW2 is not used in firmware V2 0 so you do not need to connect Wire color Receive channel White bundled with red black aileron Channel 1 orange elevator Channel 2 green throttle Channel 3 yellow rudder Channel 4 brown SW 1 Any free channel controlled by A 3 way switch or dial knob Channel 5 blue ...

Страница 10: ... DoS remains stationary that means you need to do the Gyro reset The Gyro reset must be done before the Combination Stick Commands after execute Combination Stick Commands you can not do the Gyro reset Initialization Reset Process 1 Power on DOS and keep stationary 2 Switch to stabilized mode 3 On SW1 switch stabilized mode to hovering mode 6 times time interval has to be less than 3 seconds as fo...

Страница 11: ...t satisfies the requirement of flight but after that you can wait over 30 seconds to let the GPS positioning is more stable and accurate 12 Other considerations 1 Please as far as possible to maintain the current altitude when switch Attitude Stabilized Mode to Hovering Mode In Hovering Mode DoS can automatic control flight altitude Climbing and descending rate is directly related to the throttle ...

Страница 12: ...om Page 12 sticks the aircraft will hover to a new position 13 DoS Setting Software and installation and debugging instructions connection mode First need install USB TTL device driver you can download it form our website www feiyudz cn Software Interface Description Parameter in the following picture is default parameter USB Cable ...

Страница 13: ...setting software otherwise will cause the aircraft abnormal condition Motor Mixer The following pictures display the rotation direction and serial number of each motor each ESC should be connected to the DoS S1 S8 interface Pay attention that once you choosed the control type the corresponding position motor rotate direction have to be completely the same as the picture If the motor rotate directi...

Страница 14: ...command stick the bigger the value the quicker the reaction Increase it for sharper and quicker leveling action after command stick released Unstable shaking flying and the control feeling will be stiffness and rigid if the value is too high and sluggish leveling action and slow braking if too small Control Gain Control gain use for stabilizing the flight attitude To the gains of Pitch and Roll if...

Страница 15: ...nough 1 The multi rotor can lock the altitude when the throttle stick is at center position 2 The change of altitude is small during the flight along a route You can increase the gain slowly 10 each time until the vibration emerges along the vertical direction or the reaction of throttle stick is too sensitive then decrease 20 of the gain Now it is a suitable Vertical gain Control I This value gen...

Страница 16: ...situation disappear If the camera gimbal go back to Neutral is too soft As a result you should slowly increase 10 20 each time corresponding direction Gimbal Gain 3 Gimbal Neutral The default Gimbal Neutral is 1520 Power on and put the camera gimbal into level position observe the servos position If the servos is not in the Neutral value please through adjust the to corresponding servos Gimbal Neu...

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