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2017-08-15 02:09:40 -0500 commented question Has anyone ever used ATI wireless F/T sensor ?

ATI has provided the source code written with Java.If you read it,you will find that it just got data by sockets.First,s

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2017-07-18 22:52:08 -0500 commented question Has anyone ever used ATI wireless F/T sensor ?

That's ok,I will edit the answer later.

2017-07-17 06:32:02 -0500 received badge  Notable Question (source)
2017-07-17 04:04:48 -0500 edited question Has anyone ever used ATI wireless F/T sensor ?

Has anyone ever used ATI wireless F/T sensor ? I have a ATI wireless force/torque sensor now and I can't find its ros-dr

2017-07-03 19:35:18 -0500 received badge  Popular Question (source)
2017-06-13 09:01:46 -0500 commented answer how to have subs and publisher in one single cpp

I have found the error finally,I just simulated your code.My message is built by me,when I changed the msg I could get t

2017-06-13 01:25:25 -0500 commented answer how to have subs and publisher in one single cpp

I just wonder that it is right to putpub.publish()in the callback function? I have double checked my cmake file,it seem

2017-06-13 01:15:28 -0500 commented answer how to have subs and publisher in one single cpp

I just wonder that it is right to putpub.publish()in the callback function? I have double checked my cmake file,it seem

2017-06-13 01:03:31 -0500 commented answer how to have subs and publisher in one single cpp

I just wonder that it is right to putpub.publish()in the callback function? I have double checked my cmake file,it seem

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2017-06-13 00:58:24 -0500 commented answer how to have subs and publisher in one single cpp

Hi,Haibo.I followed your code and compiled successfully,but the publisher did not work.When I try to echo the topic,It g

2017-06-13 00:57:31 -0500 commented answer how to have subs and publisher in one single cpp

thaHi,Haibo.I followed your code and compiled successfully,but the publisher did not work.When I try to echo the topic,I

2017-06-09 11:29:28 -0500 received badge  Famous Question (source)
2017-06-09 08:31:07 -0500 marked best answer how to output velosity with ur_modern_driver

I am doing a project about robot-teleoperation now. By using ROS I have accomplished the position-control(even though there are time-delay between the master and slave).I find that the position control is not flexible enough,so I want to control the robot with velosity-control .After reading the explaination about link text ,I learned that maybe it's possible to control the jointspeed. After I

 roslauch ur_modern_driver ur_driver

and

 rostopic echo /ur_driver/jointspeed

There is no response anywhere,what's failure and what I should do to control the jointspeed? Any help should be appreciated!

2017-06-09 08:13:55 -0500 commented answer how to output velosity with ur_modern_driver

oh,I got it.Thanks,gvdhoorn.By the way,I should use trajectory_msgs::JointTrajectorydirectly instead of control_msgs::Fo

2017-06-08 23:35:59 -0500 commented answer how to output velosity with ur_modern_driver

Maybe there are some mistakes in my expression ,I use rostopic echo just want to see whether it has changed after publis

2017-06-08 23:00:47 -0500 commented answer how to output velosity with ur_modern_driver

Maybe there are some mistakes in my expression ,I use rostopic echo just want to see whether it has changed after publis

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2017-06-08 11:32:15 -0500 commented answer how to output velosity with ur_modern_driver

Eh,which topic or command I should use?If I use the /ur_driver/FollowJointTrajectory,that means I must set joint positio

2017-06-08 11:26:08 -0500 commented answer how to output velosity with ur_modern_driver

Eh,which topic or command I should use?If I use the /ur_driver/FollowJointTrajectory,that means I must set joint positio

2017-06-08 09:51:53 -0500 asked a question how to output velosity with ur_modern_driver

how to output velosity with ur_modern_driver I am doing a project about robot-teleoperation now. By using ROS I have acc

2017-06-06 01:15:59 -0500 commented question Real time joint-speed control

Hi,Borob.How did you solve it at last,and could you give me some sugestions?

2017-06-06 01:15:35 -0500 commented question Real time joint-speed control

Hi,Borob.How did you solve it at last,and could you give me some sugestion?

2017-06-06 01:09:37 -0500 commented question Has anyone ever used ATI wireless F/T sensor ?

I have solved it,hah~

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2017-05-26 23:14:09 -0500 asked a question Has anyone ever used ATI wireless F/T sensor ?

Has anyone ever used ATI wireless F/T sensor ? I have a ATI wireless force/torque sensor now and I can't find its ros-dr

2017-05-01 23:01:01 -0500 edited answer node doesn't work after running rosrun

Firstly, rostopic echo can get the data,it means that your publisher is right.Perhaps you should check the subscriber wi

2017-05-01 22:54:19 -0500 answered a question node doesn't work after running rosrun

Firstly, rostopic echo can get the data,it means that your publisher is right.Perhaps you should check the subscriber wi

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2017-04-28 04:51:12 -0500 commented question errors when subscribing a topic and using its callback function in a class

ok, I will try it later,thanks!

2017-04-28 03:22:44 -0500 edited question errors when subscribing a topic and using its callback function in a class

errors when subscribing a topic and using its callback function in a class Hello, thanks for your attention. Just like t

2017-04-28 02:54:01 -0500 asked a question errors when subscribing a topic and using its callback function in a class

errors when subscribing a topic and using its callback function in a class Hello, thanks for your attention. Just like t

2017-04-25 04:57:19 -0500 answered a question Subscribing and publishing geometry/Twist messages from Turtlesim

Hi,friends,I see your code. In the first,I think that you should use rostopic listconfirm that your publisher is right o

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2017-04-20 21:11:36 -0500 edited question errors when compiling rosfalcon

errors when compiling rosfalcon I download ros_falcon from github,and i have installed libnifalcon ,but when i compile

2017-04-20 21:11:15 -0500 edited question errors when compiling rosfalcon

errors when compiling rosfalcon I download ros_falcon from github,and i have installed libnifalcon ,but when i compile

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2017-04-20 01:42:34 -0500 marked best answer why my listener can't get the published data?

Dear friends: I have built two nodes :main and listener. The main nead to read (x,y,z) from a device and publish to the listener. The main code can read the data but the listener can't get the published data now,and i even don't know whether the publish is success,how should i handle it? Thanks for you help. The result of rosrun talker: X=0.013095 Y=-0.0524488 Z=-0.0401042

But the listener is like this: X: 0 Y: 0 Z: 0

The rosmsg show is: dong@dong-H61MHB:~/Project/robot_test$ rosmsg show rosfalcon/falconPos float64 X float64 Y float64 Z The source code of publisher

int main(int argc, char* argv[]) 
   { ros::init(argc,argv, "main");
    if(init_falcon(0))
    { 
        std::cout << "Falcon Initialised Starting ROS Node" <<std::endl;
       m_falconDevice.setFalconKinematic<libnifalcon::FalconKinematicStamper>();
       ros::NodeHandle node;
       ros::Publisher pub = node.advertise<rosfalcon::falconPos>("falconPos",10);
while(node.ok())
     {       boost::array<double, 3> Pos;
            Pos = m_falconDevice.getPosition();
            rosfalcon::falconPos position;
            position.X = Pos[0];
            position.Y = Pos[1];
            position.Z = Pos[2];
            pub.publish(position);
            std::cout << "X="<< position.X<< "  Y="<< position.Y<< "
Z="<< position.Z << std::endl;      
            }
        m_falconDevice.close();
    }   return 0;
    }

And the main part of listener is:

int main(int argc, char *argv[])
{
  ros::init(argc, argv, "listener");
  ros::NodeHandle node;
while(node.ok())
{
  ros::Subscriber sub = node.subscribe("position", 10,&positionCallback);
}
  ros::spin();
  return 0;
}
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2017-04-19 07:20:41 -0500 commented answer why my listener can't get the published data?

I did rostopic echo and found that my publisher didn't work.I guess that there are something wrong in my cmakelists.

2017-04-19 07:07:06 -0500 commented answer why my listener can't get the published data?

yeah,I found the my topic name is wrong.It should be same,and the first one is not the fatal error.Thank you.

2017-04-19 07:06:25 -0500 commented answer why my listener can't get the published data?

yeah,I found the my topic name is wrong.It should be same,and the first is not the fatal error.Thank you.

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