[Tinyos-help] how to calculate power consumption in real sensor deployment?

[Diego Bartolomé Arquillo]

Hi Kewei,
You can get the current consumption during the program execution by using an oscilloscope. Hook up a small resistor in series between the battery and the board, then use the oscilloscope to get the voltage in both sides of the resistor.
BR,
Diego

-----Mensaje original-----
De: tinyos-help-bounces at Millennium.Berkeley.EDU [mailto:tinyos-help-bounces at Millennium.Berkeley.EDU] En nombre de Kewei Sha
Enviado el: lunes, 11 de septiembre de 2006 21:26
Para: tinyos-help at Millennium.Berkeley.EDU; tinyos-devel at Millennium.Berkeley.EDU
Asunto: [Tinyos-help] how to calculate power consumption in real sensor deployment?

Hi, All,
  Does anyone have experience in calculating power consumption in real sensor deployment? 
  I can get the power consumption using PowerTossim, and I want to move on to the real deployment. Do any of you know how to calculate power consumption in real sensors, e.g., Mica2 Motes? Basically, I want to know the initial energy and the remaining energy after the execution of my program. Then, the energy consumption is the different between these two numbers.  But I have no idea about how to measure the remaining energy. Or do I have to measure the current during the program execution? 
  All suggestion is welcomed. 
  Thanks a lot. 
  Kewei
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