[Tinyos-help] Invitation to connect on LinkedIn
LinkedIn Siva Prasad Katru requested to add you as a connection on LinkedIn: -- Davide, I'd like to add you to my professional network on LinkedIn. - Siva Prasad Accept invitation from Siva Prasad Katru http://www.linkedin.com/e/DQCGT3GB9z4raacyxHEZ6GwS_HFHC0dZ_bJG6UZ99BqwCW9clJdr/blk/I318506099_3/6lColZJrmZznQNdhjRQnOpBtn9QfmhBt71BoSd1p65Lr6lOfPdvejAMdz0Re34PiiZxiSt4mkkShyYOcz0Oe3sSczsLrCBxbOYWrSlI/EML_comm_afe/ View invitation from Siva Prasad Katru http://www.linkedin.com/e/DQCGT3GB9z4raacyxHEZ6GwS_HFHC0dZ_bJG6UZ99BqwCW9clJdr/blk/I318506099_3/0PnPAVc3oMdjwNcQALqnpPbOYWrSlI/svi/ -- DID YOU KNOW you can be the first to know when a trusted member of your network changes jobs? With Network Updates on your LinkedIn home page, you'll be notified as members of your network change their current position. Be the first to know and reach out! http://www.linkedin.com/ -- (c) 2009, LinkedIn Corporation ___ Tinyos-help mailing list Tinyos-help@millennium.berkeley.edu https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help
[Tinyos-help] not sending after some time
Hi I have posted these questions a few times but never got any clear answers. I would be pleased if someone could give me some answers this time. I have a problem with a program I wrote for a Telos mote.I am sending the data using Multihop routing technique.I have loaded the application into 2 modules, one with ' 0' address and another with ' 1' address..!! The mote connected to the USB( ' 0' address) is sending the data continuously...the other mote (1-address) is sending the data only for a short duration..!!! suppose if i have connected the mote(1-address) to the USB port,it is signalling that it is sending the data continuously..if i hav checked with the batteries, its sending only for a short interval of time..why one more observation i have done..when running LISTEN tool.. i am sending parent ID in the data packet..the node with address-1 is showing the value as FF (for the first 15 packets roughly)-during this time the code on this node is working fine..!! once the node is showing the parent ID as-' 0'--it is sending some duplicate packets..and after some time..it is completely stop sending the data..!!! Any idea would be really appreciated... ___ Tinyos-help mailing list Tinyos-help@Millennium.Berkeley.EDU https://mail.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help
[Tinyos-help] Telos - working when plugged on USB - not working with batteries
Hi all... I have a problem with a program I wrote for a Telos mote.I am sending the data using Multihop routing technique.I have loaded the application into 2 modules, one with ' 0' address and another with ' 1' address..!! The mote connected to the USB( ' 0' address) is sending the data continuously...the other mote (1-address) is sending the data only for a short duration..!!! suppose if i have connected the mote(1-address) to the USB port,it is signalling that it is sending the data continuously..if i hav checked with the batteries, its sending only for a short interval of time..why one more observation i have done..when running LISTEN tool.. i am sending parent ID in the data packet..the node with address-1 is showing the value as FF (for the first 15 packets roughly)-during this time the code on this node is working fine..!! once the node is showing the parent ID as-' 0'--it is sending some duplicate packets..and after some time..it is completely stop sending the data..!!! Any idea would be really appreciated... ___ Tinyos-help mailing list Tinyos-help@Millennium.Berkeley.EDU https://mail.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help
[Tinyos-help] any command for resetting TMOTE SKY
Dear all.. I am facing a problem abt the code tht i hav built, it was sending the data only for a short interval of time...suppose if i hav pressed reset button on the tmote sky module..it is sending the data again for some interval of time and then stops again..i hav tried hard to figure out this problem..asked abt this problem in our mailing list ..but did nt received any reply...now i am thinking to press reset for every time it is stop sending the data..any command to do RESET the tmote sky module.. any help will be greatly apprecialted..!! ___ Tinyos-help mailing list Tinyos-help@Millennium.Berkeley.EDU https://mail.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help
[Tinyos-help] Tmote sky-boomerang-duplication-not sending
Hi all I am using Tmote sky modules and moteiv's boomerang package..!! I have written an application which will sense 6 ADC signals @1ms...and get a cumulative sum of each ADC value(which is required for my appli) over 1000 samples...means i am sending 1packet/sec...and this application has a payload of 18 bytes..i am sending the data using MULTIHOP technique..i am facing lot of difficultieswhich are... I have loaded the application into 2modules..the base station is sending the data for every 3sec continuously..but it should send the data for every 1sec.. another mote with moteID = 1...is sending the data only for 10 seconds..and then it is sending some duplicate packets..and then it is not sending any data...why is this abnormal behaviuor.. Suppose if i have connected the moteID=1 to the USB port, it is signalling tht it is sending the data...I have observed this thing using the LEDS..i am toggling red LED when it sends the data...then its seems to be ok..now if i hav connected the mote with ID=0 to the USB port and ID=1 is given power ...then again duplication comes ..and then after it is stopping the data... really tired to solve this problem.. please help me in this regard..!!! Thanks for ur time...!!! SIVA PRASAD KATRU ___ Tinyos-help mailing list Tinyos-help@Millennium.Berkeley.EDU https://mail.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help
[Tinyos-help] not sending after some time..!!
hi all,
i am working on tmote-sky modules..my requirement is to sample two 50Hz
signals at 1kHz through external ADC ports...and calculating a value(which
is the multiplication of both the external sensors data) over 100 samples
and sending tht value (means need to send 10 samples/sec using MULTIHOP
technique)...i hav prepared my application ..it was sending the data only
for a short interval of time..can u please suggest me what might be the
reasons for sending the data only for a short duration...???
can u please give me the reason(bug),why it is stop sending the data after
some time..here i am attaching my code..please hav a look at my code..i hav
been struggling with this problem from the last one month..n..already asked
this question previously ..but didnt get any help..!!
any help is greatly appreciated..!!!
https://mail.google.com/mail/?auth=DQAAAHMAAAB6i1nsY-xVniB8vQDPw1-04H_2bR4bpxNPsy2BLc_kaYlp9OHYe8vHz3A44mjE9TsDZiuKx2NYgBqo2WX00lRkCPVtH_cSdNbnvBEvlgRGLKWKmWb2N0Bc0qV5C9aHjoBr8bfVmS0tdVzDYEwbYqmQcgBGvTAHnxqcnLsxGLz9jgzx=e6j4514doys5shva=1
#include MultiHop.h
enum
{
TOS_ADC_my1_PORT = unique(ADCPort),
TOSH_ACTUAL_ADC_my1_PORT = ASSOCIATE_ADC_CHANNEL(
INPUT_CHANNEL_A0,
REFERENCE_VREFplus_AVss,
REFVOLT_LEVEL_1_5
),
TOS_ADC_my2_PORT = unique(ADCPort),
TOSH_ACTUAL_ADC_my2_PORT = ASSOCIATE_ADC_CHANNEL(
INPUT_CHANNEL_A1,
REFERENCE_VREFplus_AVss,
REFVOLT_LEVEL_1_5
),
AM_COUNTMSG = 16
};
typedef struct
{
uint16_t reading1;
uint16_t reading2;
uint32_t sum;
uint32_t sum1;
uint16_t src;
uint16_t parent;
//uint8_t neighborsize;
//uint8_t retransmissions;
//uint16_t neighbors[MHOP_PARENT_SIZE];
//uint16_t quality[MHOP_PARENT_SIZE];
}CountMsg_t;
extADC3pC.nC
Description: Cdf file
extADC3pM.nC
Description: Cdf file
VALID_PLATFORMS = telos telosa telosb tmote
VALID_TARGETS = $(VALID_PLATFORMS) clean help
ifeq ($(filter $(VALID_TARGETS),$(MAKECMDGOALS)),)
$(error ERROR: Invalid platform! Valid platforms: $(VALID_PLATFORMS))
endif
COMPONENT = extADC3pC
DEFAULT_LOCAL_GROUP = 0x32
include $(MAKERULES)
___
Tinyos-help mailing list
Tinyos-help@Millennium.Berkeley.EDU
https://mail.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help
[Tinyos-help] Tmote sky-boomerang-duplication-not sending
Hi all I am using Tmote sky modules and moteiv's boomerang package..!! I have written an application which will sense 6 ADC signals @1ms...and get a cumulative sum of each ADC value(which is required for my appli) over 1000 samples...means i am sending 1packet/sec...and this application has a payload of 18 bytes..i am sending the data using MULTIHOP technique..i am facing lot of difficultieswhich are... I have loaded the application into 2modules..the base station is sending the data for every 3sec continuously..but it should send the data for every 1sec.. another mote with moteID = 1...is sending the data only for 10 seconds..and then it is sending some duplicate packets..and then it is not sending any data...why is this abnormal behaviuor.. Suppose if i have connected the moteID=1 to the USB port, it is signalling tht it is sending the data...I have observed this thing using the LEDS..i am toggling red LED when it sends the data...then its seems to be ok..now if i hav connected the mote with ID=0 to the USB port and ID=1 is given power ...then again duplication comes ..and then after it is stopping the data... really tired to solve this problem.. please help me in this regard..!!! Thanks for ur time...!!! SIVA PRASAD KATRU ___ Tinyos-help mailing list Tinyos-help@Millennium.Berkeley.EDU https://mail.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help
Re: [Tinyos-help] Diff. Sampling--Base station
Thank u fellas..sorry for the delay..!!! But ..i am using tmote sky modules..and i think Moteview does nt support tmotes..!! any other alternative..pls suggest me..!!! Thank u once again ..!! On 2/26/07, Tarun Bansal [EMAIL PROTECTED] wrote: On 2/26/07, siva prasad [EMAIL PROTECTED] wrote: Hi all... -- can i have no of nodes with different sampling times and still sending the data to the same base station ..??? Yes you can -- can i set this sampling rate by sending any command from the Base station..??? If you are using MoteView, then sampling rate can be easily changed dynamically. In case you are writing your own code from scratch, then also you can do that (only that it will be comparatively tough) Tarun please answer these questions ...i am really struggling with these two questions ..any help would be greatly appreciated..!!! Thanks for ur time..!!! ___ Tinyos-help mailing list Tinyos-help@Millennium.Berkeley.EDU https://mail.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help ___ Tinyos-help mailing list Tinyos-help@Millennium.Berkeley.EDU https://mail.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help
[Tinyos-help] Diff. Sampling--Base station
Hi all... -- can i have no of nodes with different sampling times and still sending the data to the same base station ..??? -- can i set this sampling rate by sending any command from the Base station..??? please answer these questions ...i am really struggling with these two questions ..any help would be greatly appreciated..!!! Thanks for ur time..!!! ___ Tinyos-help mailing list Tinyos-help@Millennium.Berkeley.EDU https://mail.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help
[Tinyos-help] ...not sending after some time..!!
hi all
i am working on tmote-sky modules..my requirement is to sample two 50Hz
signals at 1kHz through external ADC ports...and calculating a value(which
is the multiplication of both the external sensors data) over 100 samples
and sending tht value (means need to send 10 samples/sec using MULTIHOP
technique)...i hav prepared my application ..it was sending the data only
for a short interval of time..can u please suggest me what might be the
reasons for sending the data only for a short duration...???
I wil be thankful to you ..
can u please give me the reason(bug),why it is stop sending the data after
some time..here i am attaching my code..please hav a look at my code..i hav
been struggling with this problem from the last one month..i hope u wil help
me...pls..!!
#include MultiHop.h
enum
{
TOS_ADC_my1_PORT = unique(ADCPort),
TOSH_ACTUAL_ADC_my1_PORT = ASSOCIATE_ADC_CHANNEL(
INPUT_CHANNEL_A0,
REFERENCE_VREFplus_AVss,
REFVOLT_LEVEL_1_5
),
TOS_ADC_my2_PORT = unique(ADCPort),
TOSH_ACTUAL_ADC_my2_PORT = ASSOCIATE_ADC_CHANNEL(
INPUT_CHANNEL_A1,
REFERENCE_VREFplus_AVss,
REFVOLT_LEVEL_1_5
),
AM_COUNTMSG = 12
};
typedef struct
{
//uint16_t reading1;
//uint16_t reading2;
uint32_t sum;
uint32_t sum1;
uint16_t src;
uint16_t parent;
//uint8_t neighborsize;
//uint8_t retransmissions;
//uint16_t neighbors[MHOP_PARENT_SIZE];
//uint16_t quality[MHOP_PARENT_SIZE];
}CountMsg_t;
extADC3pC.nC
Description: Cdf file
extADC3pM.nC
Description: Cdf file
VALID_PLATFORMS = telos telosa telosb tmote
VALID_TARGETS = $(VALID_PLATFORMS) clean help
ifeq ($(filter $(VALID_TARGETS),$(MAKECMDGOALS)),)
$(error ERROR: Invalid platform! Valid platforms: $(VALID_PLATFORMS))
endif
COMPONENT = extADC3pC
DEFAULT_LOCAL_GROUP = 0x32
include $(MAKERULES)
___
Tinyos-help mailing list
Tinyos-help@Millennium.Berkeley.EDU
https://mail.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help
[Tinyos-help] not sending after some time..!!
hi all, i am working on tmote-sky modules..my requirement is to sample two 50Hz signals at 1kHz through external ADC ports...and calculating a value(which is the multiplication of both the external sensors data) over 100 samples and sending tht value (means need to send 10 samples/sec using MULTIHOP technique)...i hav prepared my application ..it was sending the data only for a short interval of time..can u please suggest me what might be the reasons for sending the data only for a short duration...??? any help is greatly appreciated..!!! ___ Tinyos-help mailing list Tinyos-help@Millennium.Berkeley.EDU https://mail.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help
[Tinyos-help] multiplying two,4byte nos within 1ms
hi all, i amworking ontmotes--( 8MHz Texas Instruments MSP430 microcontroller (10k RAM, 48k Flash) i need to multiply two int32_t numbers within 1ms is it possible? please let me know... thanking u ... ___ Tinyos-help mailing list Tinyos-help@Millennium.Berkeley.EDU https://mail.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help
[Tinyos-help] Delta-external ADC--help needed
hi all i am having two doubts... ---at first... i hav successfully compiled and installed the modified the Delta application for external ADC signal...sampling time period is 10ms.. when i hav given a sinusoidal signal of 0.5V with an offset of 0.75V at1 Hz from the signal generator...it was showing the sinusoidal signal...but the thing is the sinusoidal signal it was showing has lot of noise(when i used the oscilloscope)...like...it was displaying a range of values around the exact value(sinusoidal band). why this is happening ...is there is any adjustment tht i can do... ---and ...the second one is... 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 sendfor 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 i hav seen tht in the given specifications of moteiv's module(tmote sky)..it is mentioned as 250 kbps...now in my application i am trying to use only 50 kbps...which is well within the limits...so it should work... why it is so... can anybody pls give me the reason... i hav been thinking abt this problem...fromlast2 weeks. please help me. thanks --siva katru ___ Tinyos-help mailing list Tinyos-help@Millennium.Berkeley.EDU https://mail.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help
[Tinyos-help] high frequency sampling
hi all... ihav some doubts i hav modified the delta application such tht it will read the external ADC signal...it was successful... -- i hav sampled a signal of 0.5V(1Hz) sinusoidal signal at 1ms...i am losing lot of packets.. wat might be the reason...any remedies? -- wat is the maximum data rate tht we can expect from moteiv motes...? on wat factors this rate will depend? -- the sinusoidal signal tht it was showing is too much thick(just like a band)...why is it so..? really need help in this areapls help me -siva katru ___ Tinyos-help mailing list Tinyos-help@Millennium.Berkeley.EDU https://mail.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help
Re: [Tinyos-help] --help on telosb mote battery-ADC
yes..there r 10+6 external ports on the mote... go through the moteiv quick start guide...andsee the following links..it is briefly explained there... http://www.moteiv.com/community/Moteiv_Community http://www.moteiv.com/community/Connecting_External_Sensors i hope this helps On 9/11/06, R. Steve McKown [EMAIL PROTECTED] wrote: On Monday 11 September 2006 01:07 pm, Madhu Mudigonda wrote: I want to read the battery voltage of the mote from the ADC on the telosb mote? Is there any connection to ADC from battery terminals on telosb mote?If you're using TinyOS 2.x, look at $TOSROOT/tos/platforms/telosb/DemoSensorC,which reads the system voltage using the MSP430's internal voltage channel connected to the ADC peripheral.Note that the channel actually reads 1/2 *Vcc.___Tinyos-help mailing list Tinyos-help@Millennium.Berkeley.EDUhttps://mail.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help ___ Tinyos-help mailing list Tinyos-help@Millennium.Berkeley.EDU https://mail.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help
[Tinyos-help] delta for external ADC signal
hello everybody i am having two doubts... ---at first... i hav successfully compiled and installed the modified the Delta application for external ADC signal...sampling time period is 10ms.. when i hav given a sinusoidal signal of 0.5V with an offset of 0.75V at1 Hz from the signal generator...it was showing the sinusoidal signal...but the thing is the sinusoidal signal it was showing has lot of noise(when i used the oscilloscope)...like...it was displaying a range of values around the exact value... why this is happening ...is there is any adjustment tht i can do... ---and ...the second one is... 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 sendfor 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 i hav seen tht in the given specifications of moteiv's module(tmote sky)..it is mentioned as 250 kbps...now in my application i am trying to use only 50 kbps...which is well in the limits...so it should work... why it is so... can anybody pls give me the reason... i hav been thinking abt this problem...from atleast 10 days. any help should be highly appreciated... thanks --siva katru ___ Tinyos-help mailing list Tinyos-help@Millennium.Berkeley.EDU https://mail.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help
Re: [Tinyos-help] Delta application -help required
hi...sorry to bother u again... why in Delta application ..the enumAM_DELTAMSG is initialised to 33; can any body pls explain On 8/30/06, Michael Schippling [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] 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 msdo 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] 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] Date: Aug 28, 2006 12:52 AM Subject: Delta application -help required To: tinyos-help@millennium.berkeley.edu mailto:tinyos-help@millennium.berkeley.edu mailto: tinyos-help@millennium.berkeley.edu mailto:tinyos-help@millennium.berkeley.edu mailto: tinyos-help@millennium.berkeley.edu mailto: tinyos-help@millennium.berkeley.edu mailto: tinyos-help@millennium.berkeley.edu mailto: tinyos-help@millennium.berkeley.edu 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 Tinyos-help@Millennium.Berkeley.EDU mailto: Tinyos-help@Millennium.Berkeley.EDU mailto: Tinyos-help@Millennium.Berkeley.EDU mailto: Tinyos-help@Millennium.Berkeley.EDU 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 Tinyos-help@Millennium.Berkeley.EDU https://mail.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help
Re: [Tinyos-help] Delta application -help required
thanks for tht idea michael... if i changed the value of AM_COUNTMSG to some other value(say 35) it is was compiling ..butit is not sending any datawhy..? 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=33i 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 usedas a message type indicator, to stick in TOS_Msg.type The values are arbitrary, and there is no masterdictionary of types.Also, one thought on your sampling problem. If the signalchanges you are interested in are sporadic, you might havethe mote detect them and only transmit when there is some thing of interest.MSsiva prasad wrote: hi...sorry to bother u again... why in Delta application ..the enumAM_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 msdo 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: tinyos-help@millennium.berkeley.edu mailto:tinyos-help@millennium.berkeley.edu mailto:tinyos-help@millennium.berkeley.edu mailto:tinyos-help@millennium.berkeley.edu mailto: tinyos-help@millennium.berkeley.edu mailto: tinyos-help@millennium.berkeley.edu mailto:tinyos-help@millennium.berkeley.edu mailto: tinyos-help@millennium.berkeley.edu mailto: tinyos-help@millennium.berkeley.edu mailto: tinyos-help@millennium.berkeley.edu mailto: tinyos-help@millennium.berkeley.edu mailto: tinyos-help@millennium.berkeley.edu mailto: tinyos-help@millennium.berkeley.edu
Re: [Tinyos-help] Delta application -help required
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 sendfor 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 msdo 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] wrote: I don't know the message rate you can expect from moteiv motesbut if you are trying to send one sample every 10ms you are probably pretty close to the limit (somewhere on the order of100 msg/sec is the max for micaz's). You'll probably need tocollect multiple samples in one message to get anywhere at 30Hz...Let me know if you need clarification one answers to your other questions. MSsiva prasad wrote: From: *siva prasad* [EMAIL PROTECTED] mailto:[EMAIL PROTECTED] Date: Aug 28, 2006 12:52 AM Subject: Delta application -help required To: tinyos-help@millennium.berkeley.edu mailto: tinyos-help@millennium.berkeley.edu 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 Tinyos-help@Millennium.Berkeley.EDU https://mail.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help ___ Tinyos-help mailing list Tinyos-help@Millennium.Berkeley.EDU https://mail.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help
Re: [Tinyos-help] Delta application -help required
hi ole, i am very thankful to unow, i understand whats going on.. butone thing remindsthat is ---i asked abt sampling at 1ms and sending the data in tht time only...for an external ADC signal of 50 hz(say)using multihop(obvious) technique...the thing is i am losing lots of packets...how can i overcome this problem...? i need help in this area... once again thank u. On 8/30/06, Ole Bischoff [EMAIL PROTECTED] wrote: Hy Siva, here is a short description of the Delta application: - StdControl.start() calls the command Timer.start() to start the programm - Every time when Timer.fired() (periodically, all DELTA_TIME ms) the sensor getsthe request ADC.getData () - When the data is ready (ADC.dataReady()), the sendData() task will be posted - sendData() sends the sensor reading and some route information in the message dmsg with SendDeltaMsg.send () - SendDeltaMsg.sendDone() indicates that the message was sent by your mote (it's is not anACK from your destination) and erases it from the queue buffer - SnoopDeltaMsg.intercept()reports an incoming message, which should be forwarded (by the MultiHop module) If you want to know why and which parent / route is selected insendData() you'll have to take a closer look at .../moteiv/tos/lib/MultiHopLQI. Genrerally it is helpfull to compile the apps with maketmote fileset to generate a filest.txt filein .../build/tmote that lists the used components and header including the location of each source file. Also you can create some documentation of an application by using make tmote docs instead, this generates a html-based documentation in .../moteiv/doc/nesdoc. There you can see all the apps, components, interfaces and the wiring. Hope this helps you a bit. OLE - Original Message - From: siva prasad To: tinyos-help@Millennium.Berkeley.EDU Sent: Wednesday, August 30, 2006 5:47 AM Subject: [Tinyos-help] Delta application -help required From: siva prasad [EMAIL PROTECTED] Date: Aug 28, 2006 12:52 AMSubject: Delta application -help required To: tinyos-help@millennium.berkeley.edu hi all... i amworking 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 itried 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 samplingtime to 10ms ..i am losing lots of packets... canany bodypls help me... thanks siva katru ___Tinyos-help mailing listTinyos-help@Millennium.Berkeley.EDU https://mail.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help ___ Tinyos-help mailing list Tinyos-help@Millennium.Berkeley.EDU https://mail.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help
Re: [Tinyos-help] Delta application -help required
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] wrote: As I said, based on my (small) experience with micaz I believethat 100 messages per second is about the max you can expect. And that 100 is for the total system, not per mote (unless ofcourse you have only one mote transmitting). If you are doingmultihop then you need to divide the total messages by thenumber of hops (each hop being it's own message) to get even a best case estimate -- ignoring hidden nodes and any otheractual practical considerations.So the only way I see to get your higher sample rate is toaggregate samples, say 10 per message. You would need to do some testing in various configurations to see how manymessages you can get...let's say, the source and two hops givesyou best case 30 msg/sec, with 10 samples/msg, is 300 samples/sec.Nobody said that motes were a High Speed sensor network... MSsiva 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 msdo 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] 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] Date: Aug 28, 2006 12:52 AM Subject: Delta application -help required To: tinyos-help@millennium.berkeley.edu mailto: tinyos-help@millennium.berkeley.edu mailto: tinyos-help@millennium.berkeley.edu mailto: tinyos-help@millennium.berkeley.edu 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 Tinyos-help@Millennium.Berkeley.EDU mailto: Tinyos-help@Millennium.Berkeley.EDU https://mail.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help ___ Tinyos-help mailing list Tinyos-help@Millennium.Berkeley.EDU https://mail.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help
[Tinyos-help] Delta application -help required
From: siva prasad [EMAIL PROTECTED]Date: Aug 28, 2006 12:52 AMSubject: Delta application -help required To: tinyos-help@millennium.berkeley.edu hi all... i amworking 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 itried 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 samplingtime to 10ms ..i am losing lots of packets... canany bodypls help me... thanks siva katru ___ Tinyos-help mailing list Tinyos-help@Millennium.Berkeley.EDU https://mail.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help
[Tinyos-help] Fwd: Delta application -help required
hi all... i amworking on sampling the external ADC value instead of DemosensorC...in the delta application provided by moteiv.(basically i need multihop functionality) 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( )...it is in the module file.. - while itried 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 samplingtime to 10ms ..i am losing lots of packets... canany bodypls help me... thanks siva katru ___ Tinyos-help mailing list Tinyos-help@Millennium.Berkeley.EDU https://mail.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help
[Tinyos-help] pls help
hi ... i am having some doubts with delta application provided by motiev... can any body pls explain themessage format for thesame application...and i didnt understand the task provided in tht application one more thing.. wat is the maximum no of bytes(oveerall) tht we can send... thanking u for any help... ___ Tinyos-help mailing list Tinyos-help@Millennium.Berkeley.EDU https://mail.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help
[Tinyos-help] Delta application to sense ADC signal
hi ...i readuremail from tinyos help list.. i am also working on sampling the ADC value instead of DEmosensorc... 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 itried 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 samplingtime to 10ms ..i am losing lots of packets... canany bodypls help me... thanks siva katru ___ Tinyos-help mailing list Tinyos-help@Millennium.Berkeley.EDU https://mail.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help
