Nivus NivuLog Easy V3, Руководство пользователя

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Chapter 6 Functional principle
6.3 Functionality of the internal data memory
Structure Circular buffer
Total size 34.944 measurement
cycles
Number of sectors 8
Sector size 4368 measurement
cycles
The internal data memory of the NivuLog Easy V3 is designed as a circular buffer with 8 sectors. If the
maximum number of data records (34.944 ) is achieved, the sector with the oldest data is deleted fully before
new data can be saved in this sector again. This means that the internal data memory at the very least
contains the measurement values of the last 30.576 cycles, however at most the measurement values of the
last 34.944 cycles.
For this reason, it is recommended to coordinate the transmission cycle and record interval in such a way that
a maximum of 30.576 measurement cycles have to be recorded between two transmissions. Note, that if the
measurement cycle is shorter than the record interval, the record interval still has to be used for the
calculation. In this case, the reason for this is that although the measurement is completed in the
measurement cycle, the determined data is saved in the data memory in the record interval. If it can be
expected that individual transmissions fail due to poor network coverage or the alternative record interval is
activated via the trigger, this must also be taken into consideration when calculating the measurement cycles
that are to be saved.
Note:
Additional explanation regarding the functionality of the circular buffer
Data memory after the first measurement cycle:
Data memory after 34.944 measurement cycles:
Data memory after 34.944 +1 measurement cycles:
NivuLog Easy V3 - Rev. 03 as of 24.10.2018 35 of 141