Navigation Slam gmapping multiple laserscans
Hello, i'm trying to create a map with two asus xtion on my turtlebot2. They are mounted back to back in the middle of the turtlebot. One to the front and one to the back. After bringing up the...
View ArticleHow to start Kinect Laser data in Turtlebot without gmapping
Hello We would like to make a program for Turtlebot to avoid obstacle using Kinect Laser data. We launched the minimal.launch file but the topic **/scan** is not published. When we launch the gmapping...
View ArticleHow to add SICK TiM Lidar to TurtleBot?
Hi, I'm new to ROS. I'm using Ubuntu 12.04 and ROS Hydro. I got a TurtleBot 2 and want to use a laser scanner for mapping and navigation instead of the Kinect. I have a SICK TiM551 (Ethernet). I have...
View ArticleExtraction of features from rviz map
Hello, In my project, I am required to evaluate accuracy of rviz map generated using GMapping algorithm on a robotino. I need to develop a repeatable method to extract features (not the 'measure' tool...
View ArticleLaser scan wont update although decay time set to zero- gmapping
Hi, I am having this issue when playing the bag file [dropbox link](https://www.dropbox.com/s/jnbfuqilish1lem/test_28jan.bag?dl=0). I recorded this bag file with /scan and /tf on a p3dx which has a...
View ArticleMap not built in slam_gmapping
Hi, I am trying to build a map using slam_gmapping. My platform is ActivMedia MobileRobots Powerbot equipped with sonar sensors and SICKLMS laser range finder. I am using the `ROSARIA` package to...
View ArticleGood map with hector_mapping and with odometry-only - bad map with gmapping
Using an XV11 lidar and calibrated odometry, I am able to build a good quality map using both hector_mapping (using scan results only) and pure odometry (using odometry only). However, I am unable to...
View ArticleHow to subcribe tf transform from map to odom by gmapping into odom to baselink?
Hi, I have an odometry obtained from encoders but it is not accurate enough. In long periods, the error accumulated the robot position not accurate. I know that gmapping publish a tf transform from map...
View Articlerosbag doesn't display map in real-time on rviz
I am following the gmapping tutorial, and it says: If you don't care to wait until the log playback and mapping process has finished before seeing some results, then you can watch the progress in rviz....
View ArticleOdom Axes not in line with base_link
Hi, I am using Powerbot to be able to build a map using gmapping algorithm. To setup my robot, I am using the ROSARIA package to be able to have control on the motors, get pose estimates from odometry...
View Articlecan't run gmapping scan
I am following the tutorial here to make a simple map from already prepared data: http://wiki.ros.org/slam_gmapping/Tutorials/MappingFromLoggedData however, I get stuck at this step: > rosrun...
View Articleskewed map gmapping
Hello, For the past few weeks I have been trying to build a map of our laboratory using slam_gmapping. I am operating a Powerbot via the `RosAria` package. It has a SICK laser range finder which I am...
View ArticleHow can I create a map by using gmapping and a Hokuyo-Scanner?
Hey, i have a Hokuyo-Scanner (UTM-30LX-EW) and i would like to create a 2D-Map with gmapping and visualize this in realtime with Rviz. Can anyone tell me what the best way is to do this? my Steps are:...
View ArticleNo Transform to fixed frame map
I am getting a transform error which I have not seen in hydro. I am having difficulty understanding the origin of this error. I am sending a scan to slam gmapping. Thank you for looking at this....
View ArticleGmapping without landmarks
I am running gmapping on husky bot with hokoyo scanner in gazebo simulation environment. I am experimenting with gmapping in an empty world. Gmapping does not create any map and the map frame jumps...
View ArticleHow to instruct a robot to cover the whole mapped 2D area?
Hello experts, I've been searching and trying to figure out how to implement a SLAM based coverage method using ROS on a Turtlebot, that in which the robot builds a map of its workplace and visits...
View ArticleInstall scan_tools doesn't work
Hey, i have a Problem with the scan_tools in Ros. I need laser_scan_matcher to build a map without odom by using gmapping. i follow this [Site](http://wiki.ros.org/scan_tools) and i get an Error. Here...
View ArticleNo point cloud in Turtlebot Gazebo gmapping
I'm trying to follow this tutorial with Gazebo simulator: [http://learn.turtlebot.com/2015/02/01/11/](http://learn.turtlebot.com/2015/02/01/11/) In the tutorial, (real) Turtlebot is scanning the...
View ArticleGmapping is adding extra points to my map that aren't from the laser scan.
I'm running gmapping using the sick lms1xx driver for the lidar scans and wheel encoders for odometry. I'm having a problem with gmapping adding points to the map that are outside of my walls and are...
View ArticleHow does gmapping uses odometry data (from the encoder + IMU)
Hi everyone, I'm currently working on a robotics project which uses gmapping. If I'm not wrong, the gmapping uses information from odometry and laser to obtain more accurate results. But how does the...
View Article