Search found 7 matches

by harriswang
Sun Mar 10, 2019 12:50 pm
Forum: Bitcraze
Topic: ROS system gives an error when the aircraft takes off
Replies: 0
Views: 56

ROS system gives an error when the aircraft takes off

We use a computer with a ROS operating system to control the aircraft to take off, but the computer will report an error. [crazyflie_server-1] process has died [pid 5482, exit code -6, cmd /home/wangyubin/crazyflie_ws/develb/crazyflie_driver/crazyflie_server __name:=crazyflie_server __log:=/home/wan...
by harriswang
Sun Mar 10, 2019 12:45 pm
Forum: Bitcraze
Topic: When the ROS system is used for aircraft takeoff, the terminal reports an error.
Replies: 1
Views: 66

When the ROS system is used for aircraft takeoff, the terminal reports an error.

[crazyflie_server-1] process has died [pid 5482, exit code -6, cmd /home/wangyubin/crazyflie_ws/devel/lib/crazyflie_driver/crazyflie_server __name:=crazyflie_server __log:=/home/wangyubin/.ros/log/d44aeaa4-424c-11e9-996f-7c7635bf4a1e/crazyflie_server-1.log]. log file: /home/wangyubin/.ros/log/d44aea...
by harriswang
Thu Mar 07, 2019 11:19 am
Forum: Bitcraze
Topic: Autonomous flight instability
Replies: 1
Views: 92

Autonomous flight instability

Using the ROS robotic operating system and the OPTITRACK infrared motion capture system for autonomous hovering of the aircraft, it was found that the aircraft was significantly offset towards the X-axis or Y-axis side and hit the laboratory's protective net. We used a number of aircraft to perform ...
by harriswang
Thu Mar 07, 2019 1:59 am
Forum: Bitcraze
Topic: 自主悬停实验的飞行器不稳定
Replies: 0
Views: 58

自主悬停实验的飞行器不稳定

使用ROS机器人操作系统和OPTITRACK红外运动捕捉系统进行飞行器的自主悬停时发现飞行器朝向X轴或Y轴一侧明显偏移,撞上实验室的防护网。我们使用了多架飞行器进行了重复实验,发现只有一架飞行器能够稳定悬停。这架飞行器的唯一区别是运动捕捉系统标记点的摆放位置不同。我们修改过PID参数,结果实际影响不大,起飞时间延长了而已。同时,我们也排除了定位系统的motive的影响。我们小组考虑是不是标记点位置不同的质心位置的影响。需要您们的帮助。谢谢
by harriswang
Thu Mar 07, 2019 1:25 am
Forum: Technology
Topic: Hover instability
Replies: 3
Views: 992

Re: Hover instability

Hello, we have used a lot of aircraft to carry out experiments, but one aircraft is able to complete the stable hovering mission. The only difference between this aircraft is that the marking points recognized by the motion capture system are placed on the aircraft differently, is it not? Does the p...
by harriswang
Fri Dec 28, 2018 2:44 pm
Forum: Technology
Topic: Hover instability
Replies: 3
Views: 992

Hover instability

Autonomous hovering is performed using the optitrack motion capture system and the ros operating system, but the aircraft flies to the Y-axis or Z-axis side after take-off, which is a specific problem. thank you
by harriswang
Sat Oct 27, 2018 12:45 pm
Forum: Bitcraze
Topic: self checking
Replies: 1
Views: 403

self checking

when i connect the power supply,the cf cannot self check.and the guiding M2 is always bright,but others are not bright.what should i do?
thank u!