Time Calculation - RoboSense LiDAR RS-Ruby Plus User Manual

1) Select PTP mode in the web interface (please see Appendix A.2 Web Interface configuration);
2) Prepare a PTP Master timing host (plug and play, no additional configuration required);
3) Ethernet switch;
4) Device supporting PTP protocol
LiDAR Configuration Box
Note:
1. The PTP Master timing equipment is a third-party equipment that needs to be purchased by the user
independently, which is not included in the shipping package.
2. As a PTP Slave device, our LiDAR only obtains the time sent by the PTP Master, and does not make accuracy
judgments. If the time of the LiDAR deviates from the real time, please check whether the time provided by the
PTP Master is accurate;
3. After the LiDAR is synchronized, the PTP Master is disconnected, and the time in the point cloud data packet
will be superimposed according to the LiDAR's internal clock, and it will be reset after the LiDAR is powered off
and restarted.

4.6.5 Time Calculation

MSOP packets contain time information， a set of default times is used for timing without external
time synchronization and it will be updated after using the external time synchronization。
The timestamp analysis in the point cloud data package is as follows：
PTP Master（third party）
Ethernet Switch
Figure 4-4 PTP Connecting Diagram
14
RS-Ruby Plus User Manual