Campbell CCFC Instruction Manual - page 117
CCFC Field Camera
106
Table 16-1 File Transfer Times Using PakBus
Communication
BAUD RATE
Time (seconds)
per 100Kbytes
9600
240 seconds
0.0123 A-Hrs
19200
120 seconds
0.0076 A-Hrs
38400
60 seconds
0.0054 A-Hrs
57600
40 seconds
0.0044 A-Hrs
115200
30 seconds
0.0038 A-Hrs
To estimate the power consumption of the system, look up the
parameters in Table 16-1, along with the communication times to
calculate the power consumption as follows:
Determine the Active Time in minutes:
Active Minutes = Number of pictures per day * (Active
Duration + Communication Time)/60
For a camera in the Deep Sleep state sending 24 photos
per day at 115200 BAUD that are 100 Kbytes in size:
Active Minutes =24*(25 seconds + 30 seconds)/60 = 22
minutes/day of Active Time
Determine the total time in Quiescent Low Powered State
Quiescent minutes = 1440 minutes per day – Active
minutes
Quiescent minutes = 1440 – 22 = 1418 minutes
Determine the power consumed by the Quiescent state in
Amp-Hours.