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Timestamp alignment
In general, we have to synchronize log data from multiple sensor signals measured in different parts.
They are likely to have slightly different sampling rates and clock times that require an offset. It is a
hard and complex task to calculate and align the timestamp of log data from different instruments or
locations. MDCL provides a very clever mechanism that allows users to quickly align the time and
perform more sophisticated analyses.
1.
Support NTP time synchronization.
MDCL has a built-in Real Time Clock, and records data with timestamps. To increase the accuracy
of system time in the RTC, MDCL can be configured to execute automatic time correction from
the NTP server on the network, or manually set to synchronize its clock with the time of your
local PC or an NTP server.
2.
Generate filename with creation date and time.
MDCL provides a consistent name format for log files that allows you to identify them. The file
name begins with a "T_" prefix followed by the creation date and time in MMDDHH format.
3.
Shift log intervals based on clock times.
The log interval in MDCL is ranged from 5 seconds to 6 hours, it records data every interval
starting on the hour (00:00) where intervals are less than or equal to 1 hour; and beginning at
midnight where intervals are more than 1 hour.
Besides the first entry, the data will be recorded at 00:00, 15:00, 30:00 and 45:00 every hour
when the Logging Rate is set to a 15-minute interval.
If three MDCL modules are enabled to log data with different starting time, and the same Logging
Rate setting of 15 minutes is applied, the entries will seem to be logged at the same time point,
although they are recorded on different MDCL.
Time Stream
0:00
15:00
30:00
45:00
MDCL #1
MDCL #2
MDCL #3
Logging time point
