ROTOR_THRUSTS mode failed

[fanshi14]

Hi guys,

I tried to directly send thrust force command to each rotor.
I followed as the instruction in ControlCommand.msg:

quadrotor_common::ControlCommand command;
command.timestamp = time;
command.armed = true;
command.control_mode = quadrotor_common::ControlMode::ROTOR_THRUSTS;
command.rotor_thrusts.resize(4);
for (int i = 0; i < 4; ++i)
command.rotor_thrusts[i] = 9.81 * 0.68 / 4.0; // just for example

However, it compiles well but the process died when running:

[hummingbird/rpg_rotors_interface-5] process has died [pid 14073, exit code -11, cmd /home/shi/ros/uzh_ws/devel/lib/rpg_rotors_interface/rpg_rotors_interface odometry:=ground_truth/odometry rpg_rotors_interface/arm:=bridge/arm __name:=rpg_rotors_interface __log:=/home/shi/.ros/log/05a315a0-c767-11e9-8713-e4a7a015d79f/hummingbird-rpg_rotors_interface-5.log].
log file: /home/shi/.ros/log/05a315a0-c767-11e9-8713-e4a7a015d79f/hummingbird-rpg_rotors_interface-5*.log

I tried both on my laptop and desktop, but all have the same problem.

Could you give my any hint?

Thanks a lot!
@mfaessle @foehnph