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ROBOTIS-GIT / turtlebot3_autorace

Autonomous Driving with TurtleBot3
http://turtlebot3.robotis.com
Apache License 2.0
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image_color and camera_info are not synchronized #49

Open krizchong opened 4 years ago

krizchong commented 4 years ago

In Autorace 2019, when I running this

$ export AUTO_IN_CALIB=action $ roslaunch turtlebot3_autorace_camera turtlebot3_autorace_intrinsic_camera_calibration.launch

There are always pop out the warning as:

[ WARN] [1597283229.652176080]: [image_transport] Topics '/camera/image_color' and '/camera/camera_info' do not appear to be synchronized. In the last 10s: Image messages received: 62 CameraInfo messages received: 299 Synchronized pairs: 0

Sometime the pairs is not 0, then the image process still working, but sometime it always 0...

Why this happen? I try to use different kind of WiFi connection, like smartphone hot spot or WiFi router, also the same. I also already ntpdate on both SBC and Remote PC. How to solve this issue?

BENBEY-I commented 2 years ago

I had the same problem, I solved it using a wired connection, at the beginning I tried the wifi connection (the smartphone hotspot and the pc hotspot), with the smartphone hotspot the robot and the PC connected perfectly but I had this problem and with the PC hotspot the robot could not connect, so I tried the wired connection and it worked.

selvavignesh-2206 commented 2 weeks ago

Is there any update on this issue? I am facing the similar issue with local network WIFI.