Please go through the TinyOS tutorial. These are basic questions that are answered by this tutorial.
-Joe On 8/31/06, siva prasad <[EMAIL PROTECTED]> wrote:
thanks for tht idea michael... if i changed the value of AM_COUNTMSG to some other value(say 35) it is was compiling ..but it is not sending any data....why..? now i want to introduce one more "uint_16t reading2" variable into the structure..deltamsg:-- ----for using another external ADC port and sending tht value...in the msg.. it was compiling but ...it is not sending any data...i think this is the problem with the AM_DELTAMSG=33....i hav tried with different values of the same value ....still it is not working... pls help me... On 8/31/06, Michael Schippling <[EMAIL PROTECTED]> wrote: > Usually anything starting with AM_ is meant to be used > as a message type indicator, to stick in TOS_Msg.type > The values are arbitrary, and there is no master > dictionary of types. > > Also, one thought on your sampling problem. If the signal > changes you are interested in are sporadic, you might have > the mote detect them and only transmit when there is some > thing of interest. > > MS > > siva prasad wrote: > > hi...sorry to bother u again... > > why in Delta application ..the "enum"....AM_DELTAMSG is initialised to 33; > > can any body pls explain.... > > > > > > > > On 8/30/06, *Michael Schippling* <[EMAIL PROTECTED] > > <mailto:[EMAIL PROTECTED]>> wrote: > > > > Keptin, I kenna change th'laws o'physics... > > > > siva prasad wrote: > > > again thanks for tht explanation...i can understand tht problem... > > > As i told previously, my system is highly dynamic in nature...in > > order > > > to monitor such dynamical system is there any better idea...not like > > > sending 10 readings in one packet after 10ms... > > > > > > thanks in advance... > > > > > > siva katru > > > > > > On 8/30/06, *Michael Schippling* <[EMAIL PROTECTED] > > <mailto: [EMAIL PROTECTED]> > > > <mailto:[EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]>>> wrote: > > > > > > As I said, based on my (small) experience with micaz I believe > > > that 100 messages per second is about the max you can expect. > > > And that 100 is for the total system, not per mote (unless of > > > course you have only one mote transmitting). If you are doing > > > multihop then you need to divide the total messages by the > > > number of hops (each hop being it's own message) to get even > > > a best case estimate -- ignoring hidden nodes and any other > > > actual practical considerations. > > > > > > So the only way I see to get your higher sample rate is to > > > aggregate samples, say 10 per message. You would need to > > > do some testing in various configurations to see how many > > > messages you can get...let's say, the source and two hops gives > > > you best case 30 msg/sec, with 10 samples/msg, is 300 > > samples/sec. > > > > > > Nobody said that motes were a High Speed sensor network... > > > MS > > > > > > > > > siva prasad wrote: > > > > thanks for ur reply michael, > > > > > > > > if i sample the signal at 1ms(suppose for 50hz signal) > > then it > > > will be > > > > better ...that is required for my application ...one more > > thing > > > is that, > > > > the system tht i want to monitor is highly dynamic in > > nature..so the > > > > data should be send for every 1ms...i think 1ms is > > sufficient for > > > just > > > > measuring the external ADC value..and sending this value using > > > > multihop(must) technique... > > > > But the problem is..... i am losing lot of packets abt 50% > > even > > > for the > > > > sampling period at 10 ms....do u hav any different idea tht > > > ...how can i > > > > overcome this problem.... > > > > any help should be highly appreciated... > > > > > > > > if we cant sample and send(using multihop) the data in 1ms > > ...pls > > > give > > > > the reason... > > > > > > > > still i did nt clear my old doubts... > > > > > > > > > > > > On 8/30/06, *Michael Schippling* <[EMAIL PROTECTED] > > <mailto:[EMAIL PROTECTED]> > > > <mailto: [EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]>> > > > > <mailto:[EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]> > > <mailto:[EMAIL PROTECTED] <mailto:[EMAIL PROTECTED] >>>> wrote: > > > > > > > > I don't know the message rate you can expect from > > moteiv motes > > > > but if you are trying to send one sample every 10ms > > you are > > > > probably pretty close to the limit (somewhere on the > > order of > > > > 100 msg/sec is the max for micaz's). You'll probably > > need to > > > > collect multiple samples in one message to get anywhere at > > > 30Hz... > > > > > > > > Let me know if you need clarification one answers to > > your other > > > > questions. > > > > MS > > > > > > > > > > > > siva prasad wrote: > > > > > > > > > > > > > > > From: *siva prasad* < [EMAIL PROTECTED] > > <mailto: [EMAIL PROTECTED]> > > > <mailto:[EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]>> > > > > <mailto: [EMAIL PROTECTED] > > <mailto:[EMAIL PROTECTED]> <mailto: [EMAIL PROTECTED] > > <mailto:[EMAIL PROTECTED]>> > > > > <mailto:[EMAIL PROTECTED] <mailto: [EMAIL PROTECTED]> > > <mailto:[EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]>> > > > > <mailto: [EMAIL PROTECTED] > > <mailto:[EMAIL PROTECTED]> <mailto:[EMAIL PROTECTED] > > <mailto:[EMAIL PROTECTED]>>>>> > > > > > Date: Aug 28, 2006 12:52 AM > > > > > Subject: Delta application -help required > > > > > To: [email protected] > > <mailto:[email protected] > > > > <mailto:[email protected] > > <mailto:[email protected] >> > > > > <mailto: [email protected] > > <mailto: [email protected]> > > > <mailto:[email protected] > > <mailto: [email protected]>>> > > > > > <mailto: [email protected] > > <mailto: [email protected]> > > > <mailto: [email protected] > > <mailto: [email protected]>> > > > > <mailto: [email protected] > > <mailto: [email protected]> > > > <mailto: [email protected] > > <mailto: [email protected]>>>> > > > > > > > > > > hi all... > > > > > > > > > > i am working on sampling the ADC value instead of > > > > DEmosensorc...in the > > > > > delta application provided by moteiv..... > > > > > > > > > > i am glad to say tht ..i hav successfully compiled > > it ... > > > > > and installed..it worked... > > > > > the problem is when i tried to undrstand the > > program..i am > > > facing > > > > some > > > > > difficulties.... > > > > > > > > > > -> i could nt understand the task..named...sendDone( ) > > > > > > > > > > -> while i tried to see the raw data using listen > > > tool...it is > > > > showing > > > > > 42 bytes...but i could nt figured out the data format.. > > > > > > > > > > ->one more problem is...the signal tht i want to > > sample is > > > a low > > > > > frequency signal..abt 30Hz... > > > > > if i increase the sampling time to 10ms ..i am > > losing > > > lots of > > > > packets... > > > > > > > > > > can any body pls help me... > > > > > > > > > > thanks > > > > > > > > > > siva katru > > > > > > > > > > > > > > > > > > > > > > > > ------------------------------------------------------------------------ > > > > > > > > > > _______________________________________________ > > > > > Tinyos-help mailing list > > > > > [email protected] > > <mailto:[email protected]> > > > <mailto: [email protected] > > <mailto:[email protected]>> > > > > <mailto: [email protected] > > <mailto:[email protected]> > > > <mailto: [email protected] > > <mailto:[email protected]>>> > > > > > > > > > > > > > > https://mail.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help > > <https://mail.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help> > > > > > < https://mail.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help> > > > > > > > > > > > > > > > > > > > _______________________________________________ Tinyos-help mailing list [email protected] https://mail.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help
_______________________________________________ Tinyos-help mailing list [email protected] https://mail.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help
