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2022-01-27 12:36:30 -0500 | marked best answer | tf for mutiple Aruco markers Hi, I'm able to get the tf for one Aruco marker .Here is my code snippet So, if i have multiple markers how to add frames for each of the detected marker`? |
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2020-12-28 00:52:13 -0500 | marked best answer | Rotate a 2d LiDAR to build 3D map Hi, I'm using a husky robot for my navigation which already has 2d LMS Lidar and I'm able to implement 2D SLAM algorithm on that. Now, instead of having two 2d Lidar, I wanted to rotate 2d lidar and get the 3d point cloud so that I can use Cartographer to build 3d maps. But before that, I need to set up the rotating joint and then attach the lidar to the rotating joint in the URDF of the robot. Does anyone know how to set up the rotating platform in the URDF and then attach the lidar to it? |
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2019-11-04 10:04:25 -0500 | edited answer | Arduino rosserial - Unable to sync with device Hi, Initialize the ros handle with the same baud rate in your Arduino code nh.getHardware()->setBaud(BAUD) Something |
2019-11-04 10:03:50 -0500 | answered a question | Arduino rosserial - Unable to sync with device Hi, Initialize the ros handle with the same baud rate in your Arduino code nh.getHardware()->setBaud(BAUD) Something |
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2019-10-21 06:58:11 -0500 | answered a question | How Cartographer publishes Map to base_link transform? Hi, I would suggest you keep the tracking frame as base_link i.e. tracking_frame = "base_link" When you launch the Carto |
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2019-10-03 07:18:36 -0500 | asked a question | Is it to get pose of the robot from rtabmap using monocular camera? Is it to get pose of the robot from rtabmap using monocular camera? Hi, I wanted to plot the robot x-y position using a |
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2019-08-28 06:07:58 -0500 | marked best answer | Launching laser_scan_matcher and gmapping Hi, So I have a simple question. When I'm building a map by launching gmapping node, so during the simulation (map building ongoing-process), is it possible to run laser_scan matcher node? What I want to do is correct the wheel odometry when the lidar sees a feature in the environment. For example, if running the robot in a narrow corridor, I want to use gmapping as a standalone package. So there will be error accumulated in the odometry due to the wheel slippage while running in the narrow corridor and once it has to turn at the end of the corridor, I want to correct the error in odometry by using laser_scan_matcher. Is it possible to do so? |
2019-08-06 13:06:30 -0500 | marked best answer | Unable to build RTAB map using 2d rotating LiDAR Hi, I'm using a rotating 2d lidar and then using laser assembler package to get 3d point cloud. Video I can see the point cloud but when I used in RTAB no map frame is generated neither it is able to map the data. Here is my launch file I'm not sure if it is because of the rotating laser transform to the base link is being received properly or not. You can see the tf tree as no map frame is published Frames Can anyone help me? [Updated] |
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2019-08-05 13:48:18 -0500 | commented question | Launching laser_scan_matcher and gmapping @Humpelstilzchen @billy So, what I was thinking is when u put minimumScore value to 'x', so the laser scan matcher measu |
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2019-07-31 02:41:01 -0500 | asked a question | Does Gmapping uses ICP scan matching technique? Does Gmapping uses ICP scan matching technique? Hi, I have a simple question. So, when we run the gmapping node, which s |
2019-07-30 09:57:01 -0500 | commented answer | Bad maps produced by gmapping in simulation with feature-poor environments @zsaigol But what if you want to keep minimumScore to a high value at some point and low at some other point. For exampl |
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2019-07-29 01:31:42 -0500 | commented question | Launching laser_scan_matcher and gmapping @Humpelstilzchen So if I'm using Gmapping node first, it will take as usual the odometry generated by wheels whenever sc |
2019-07-28 16:03:04 -0500 | commented question | Launching laser_scan_matcher and gmapping @billy Thanks alot. The thing is I was testing in a long straight pipe which is featureless just like moving in a narrow |
2019-07-28 14:42:15 -0500 | commented question | Launching laser_scan_matcher and gmapping @Humpelstilzchen If I fuse the odometry data from laser_scan_matcher with wheel odometry or imu, it will give bad result |
2019-07-28 14:41:38 -0500 | commented question | Launching laser_scan_matcher and gmapping @Humpelstilzchen If I fuse the odometry data from laser_scan_matcher with wheel odometry or imu, it will give bad result |
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2019-07-28 14:40:35 -0500 | commented question | Launching laser_scan_matcher and gmapping @Humplestilzchen If I fuse the odometry data from laser_scan_matcher with wheel odometry or imu, it will give bad result |
2019-07-28 14:36:58 -0500 | commented question | Launching laser_scan_matcher and gmapping @billy Thanks for your reply. That's true since it is dead reckoning. But what I want to do is switching between wheel o |
2019-07-28 08:46:32 -0500 | edited question | Launching laser_scan_matcher and gmapping Launching laser_scan-matcher and gmapping Hi, So I have a simple question. When I'm building a map by launching gmapping |
2019-07-28 08:26:52 -0500 | asked a question | Launching laser_scan_matcher and gmapping Launching laser_scan-matcher and gmapping Hi, So I have a simple question. When I'm building a map by launching gmapping |