Hi, Regarding the last email, I believe the radio in the so called "hearing mode" consumes as much as "receiving mode" as the radio reception circuitry is ON. The idle mode is when the radio is turned off. That is exactly what Low Power Listening (LPL) BoX-MAC does.
I suggest for a detailed energy profile calculation, you may look at the Avrora simulator and its energy calculator components. It contains a similar method to what is mentioned in the previous email, -Hamid On Wed, Sep 19, 2012 at 10:27 AM, Han Bin <[email protected]> wrote: > > > wasif masood wrote: > > > > no don't go in that direction, just calculate the time radio itself spent > > in either of these states, look into my code, in the CSMACA component, > you > > will see how I am using the Anlyzer component to calculate these times. > > > > Dear Wasif, > Thank you for your help. I've read your code and concerned about the way to > calculate energy consumption as below: > rOnTime = the time when radio is ON [call SplitControl.start()] until the > time radio is OFF [call SplitControl.stop()] > And then consumed energy is calculated by: > E = P_on * rOnTime + P_off*rOffTime ; // > where P_on=57,P_off=8;//7.6~8;//I_on=19,I_off=2.55, V=3; > > However, as we known, Radio consumes much energy when it transmits or > receives packets (~23mA) and consumes less energy in idle mode (~21 uA). > Actually, even though the radio is ON, but if mote doesn't transmit or > receive any packet, it consumes very little energy. Therefore, it doesn't > make sense when we use I_on = 19mA to calculate Energy (for the total time > when radio is ON). For more accuracy, I think we should calculate the > duration time when radio transmits or receives packets. But I don't know > how > to get this duration time correctly? How about your idea? > Thank you very much! > Han Bin > > -- > View this message in context: > http://old.nabble.com/Energy-consumption-on-Telosb-tp34443559p34453369.html > Sent from the TinyOS - Help mailing list archive at Nabble.com. > > _______________________________________________ > Tinyos-help mailing list > [email protected] > https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help >
_______________________________________________ Tinyos-help mailing list [email protected] https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help
