Campbell CC5MPXWD, Instruction Manual

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CC5MPX Digital Camera
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determining the amount of time it takes to transfer files using RS-232 or
RS-485 PakBus communications.
TABLE 8-17. File Transfer Times Using PakBus
Communication
Baud Rate
Time (seconds)
per 100 kB
9600
240 seconds
0.0123 A hr
19200
120 seconds
0.0076 A hr
38400
60 seconds
0.0054 A hr
57600
40 seconds
0.0044 A hr
115200
30 seconds
0.0038 A hr
To estimate the power consumption of the system, look up the parameters in
TABLE 8-16 , 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 Du
Communication Time)/60
For a camera in the Deep Sleep state sending 24 images per day at
115200 baud that are 100 kB in size:
Active Minutes = 24 • (25 s 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 ampere
hours.
Quiescent Power = Quiescent Minutes • Quiescent Current Draw/60
Quiescent Power = 1418 minutes • 6 mA/60 = 141.8 mA hr or
0.1418 A hr/Day
•
Determine the power consumed by the active state in ampere hours.
Active Power = Active minutes • Active Current Draw/60
Active Power = 22 minutes • 250 mA/60 = 91.67 mA hr or
0.0917 A hr/Day