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How to reduce the amount of data for nanoScan3 #53

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kazuse5 opened this issue Jan 14, 2025 · 0 comments
Open

How to reduce the amount of data for nanoScan3 #53

kazuse5 opened this issue Jan 14, 2025 · 0 comments

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@kazuse5
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kazuse5 commented Jan 14, 2025

Dear support,

The processing power of a PC receiving the data is not that high.
So, it is necessary to reduce the load on the PC.
Is it possible to reduce the angular resolution of the output data?
For example, double the value of the parameter "angle_increment" in the topic "/extended_scan", etc.

The value of the parameter "skip" has already been incremented.
We would like to reduce the amount of data for the topic "/extended_scan" as well as the topic "/raw_data".

LiDAR : nanoScan3
driver : sick_safetyscanners2
OS : Ubuntu22.04
ROS2 : humble

$ ros2 topic echo /extended_scan
...
laser_scan:
header:
stamp:
sec: 1736820319
nanosec: 938661688
frame_id: scan
angle_min: -2.399827718734741
angle_max: 2.3998663425445557
angle_increment: 0.0029088794253766537
time_increment: 1.4000000192027073e-05
scan_time: 0.029999999329447746
range_min: 0.10000000149011612
range_max: 40.0
ranges:

  • 0.16699999570846558
  • 0.16699999570846558
  • 0.16599999368190765
    ...

Best regards

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