Instruction manual

CC5MPX Digital Camera
80
Table 15-2 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 15-1, along with the communication times to calculate the power
consumption as follows:
x 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 images 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
x Determine the total time in Quiescent Low Powered State
Quiescent minutes = 1440 minutes per day – Active minutes
Quiescent minutes = 1440 – 22 = 1418 minutes
x Determine the power consumed by the Quiescent state in Amp-Hours.
Quiescent power = Quiescent minutes * Quiescent Current Draw/60
Quiescent power = 1418 minutes*6 mA/60 = 141.8 mA- Hour or 0.1418
Amp-Hours/Day
x Determine the power consumed by the Active state in Amp-Hours.
Active power = Active minutes * Active Current Draw/60
Active power = 22 minutes*250 mA/60 = 91.67 mA-Hour or 0.0917
Amp-Hours/Day
x Total power consumption is the sum of the Active and Quiescent Power
Total power = Quiescent Power + Active Power
Total power = 0.1418 Amp-Hours/Day + 0.0917 Amp-Hours/Day
Total power = 0.2335 Amp-Hours/Day