Table 4.

Transmission results of the outdoor test.

10 second interval, 3 real sensors	Outdoor Test 1	Outdoor Test 2
Duration	78 min	18 min
Number of sensor values	39,106	8,666
Number of intervals	261	65
kB sent (without header information)	1,550 kB	341 kB
Bytes per sensor value (avg)	39,6 B	39,3 B
Number of sensor values sent per second (avg;max;min)	18; 60; 2	18; 80; 1
Number of sensor values sent per interval (avg;max;min)	150; 1459; 51	134; 441; 4
Sending time per interval (avg;max;min)	8 s; 130 s; 2 s	7;56 s; 1 s
Transmission time until storage in database (avg;max;min)	13 s; 140 s; 2 s	12 s; 66 s; 1 s