Time Synchronization

Conifguration for the system time synchronization

The system time is used to fill timestamps in generated output data e.g. point cloud frames.

Table 1. Available fields in blickfeld.system.config.TimeSynchronization
Field	Type	Default	Unit
ntp	Ntp	-	-
ntp	Configuration for NTP time synchronization
manual	Manual	-	-
manual	Manual time configuration
time_zone	optional string	-	-
time_zone	Configure time zone of device. Use ListTimeZones to retrieve the available time zones. Default: UTC
serve_time	bool	-	-
serve_time	Serve the system time of this device to other devices in the network Starts a local, non-authoritative NTP server (stratum 10) which distributes the system time of this device. Access is restricted to the subnet of the device. It is intended for isolated networks without an NTP server and is managed automatically by the leader device of a swarm which uses manual time synchronization. [NOTE] The served time is only as accurate as the configured reference. The option has no effect when NTP time synchronization is used.

Ntp

Configuration message for NTP time synchronization

Table 2. Available fields in blickfeld.system.config.TimeSynchronization.Ntp
Field	Type	Default	Unit
servers	repeated string	-	-
servers	List of NTP time servers which are to be used

Manual

Manual time configuration

The device has no internal battery and no reference clock. Thus the timestamp has to be reconfigured after every power cycle and in regular intervals.

Table 3. Available fields in blickfeld.system.config.TimeSynchronization.Manual
Field	Type	Default	Unit
timestamp	uint64	-	ns
timestamp	Unix reference timestamp [NOTE] The timestamp is ignored when unchanged. This prevents unintended time jumps when other configuration properties are modified.