when i use Sick Tim561 with this [sick_tim](http://wiki.ros.org/sick_tim) package ,sometime laser will disconnect and reconnected , but sometime laser is OK when navigation .why this occasionally happen, i have not found the reason .
when laser reconnected,the TF timestamp errors ,it throws
-
`terminate called after throwing an instance of 'tf2::ExtrapolationException' what(): Lookup would require extrapolation into the future. Requested time 806.12... but the latest data is at time 806.08... when looking up transform from frame [odom] to frame [map]`
- and then move_base node died,the robot base lost control. Is there exist someway to prevent move_base being died, when laser reconnected? If this exists,how can i do ?
- Any suggestions will be appreciated.Thanks.
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