Jamar TRAX Apollyon Plus II, Руководство пользователя

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A-11
Appendix
Memory Table
The TRAX Apollyon Plus II contains 8 megabytes (8,000 kilobytes) of
flash memory. The usage of this memory depends on the type of data be-
ing collected.
If you are collecting Basic data, each kilobyte of memory can hold ap-
proximately 340 axle hits, which means the unit can record well over 2
million hits before the memory is filled. The table below lists how long you
can conduct a typical 2-road tube study (assuming 4 axle hits per vehicle)
before filling the memory, based on the volume of traffic.
If you are collecting data in the
Volume Only
format, the data is stored in
memory on an interval by interval basis. Each one of these intervals can be
a maximum of 34 bytes in size, which equals approximately 30 intervals
per kilobyte or 480,000 intervals for the entire memory. The table below
lists the amount of continuous data that can be recorded with a given in-
terval time.
Interval Length Used Amount of Continuous Data
1 Minute Intervals Approximately 6 months
5 Minute Intervals Approximately 2.25 years
10 Minute Intervals Approximately 4.5 years
15 Minute Intervals Approximately 6.75 years
30 Minute Intervals Approximately 13.5 years
60 Minute Intervals Approximately 27 years
Average Daily Traffic Volume Amount of Continuous Data
1000 Approximately 667 days
5000 Approximately 133 days
10,000 Approximately 66 days
20,000 Approximately 33 days
50,000 Approximately 13 days
100,000 Approximately 7 days