Re: [Tinyos-help] Time Stamp
Thanks for the reply, well do you mean to say that it needs a lot of work and it is not effiecient to find the distance according to the Time !! Is there a source code that could help me to implement such an algorithm?? Regards, Islam - Original Message - From: Janos Sallai sal...@isis.vanderbilt.edu Date: Saturday, February 28, 2009 2:54 am Subject: Re: [Tinyos-help] Time Stamp To: Islam Mohamad Ameen Al Jarrah g00022...@aus.edu, tinyHelp tinyos-help@millennium.berkeley.edu It's a tough problem. RF waves travel 300 meters in a microsecond. This is typically more than the communication range of the motes. TEP132/133 prescribes millisecond precision timestampint. The best timestamping precision you can hope for is 2-3 microseconds on average, but you need to hack the radio stack code in order to achieve that. Then, there's the jitter (look at the FTSP paper by Miklos Maroti et al. for a list of different sources of jitter). Janos On Fri, Feb 27, 2009 at 3:41 PM, Islam Mohamad Ameen Al Jarrah g00022...@aus.edu wrote: Dear All, I need to send a packet from one mote to another with a time stamp where it will be used to calculate the distance between the two motes, and need to send an acknowledgment back to the source also with a time stamp! Can any one help me with this? Regards, Islam ___ Tinyos-help mailing list Tinyos-help@millennium.berkeley.edu https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help ___ Tinyos-help mailing list Tinyos-help@millennium.berkeley.edu https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help
Re: [Tinyos-help] Time Stamp
Dear Miklos, 1 meter precision?? If I am doing my calculations in an environment which is small lets say 1 meter by 1 meter !! this method will be useless right?? I read a paper about a precise algorithm to calculate the distance and time is one of the algorithm parameters. Regards, Islam - Original Message - From: Miklos Maroti mmar...@math.u-szeged.hu Date: Sunday, March 1, 2009 1:06 am Subject: Re: [Tinyos-help] Time Stamp To: Islam Mohamad Ameen Al Jarrah g00022...@aus.edu Cc: Janos Sallai sal...@isis.vanderbilt.edu, tinyHelp tinyos-help@millennium.berkeley.edu Dear Islam, Please calculate the time stamping precision you need to get 1 meter precision in the distance using the speed of light, and let us know. Miklos On Sat, Feb 28, 2009 at 9:50 PM, Islam Mohamad Ameen Al Jarrah g00022...@aus.edu wrote: Thanks for the reply, well do you mean to say that it needs a lot of work and it is not effiecient to find the distance according to the Time !! Is there a source code that could help me to implement such an algorithm?? Regards, Islam - Original Message - From: Janos Sallai sal...@isis.vanderbilt.edu Date: Saturday, February 28, 2009 2:54 am Subject: Re: [Tinyos-help] Time Stamp To: Islam Mohamad Ameen Al Jarrah g00022...@aus.edu, tinyHelp tinyos-help@millennium.berkeley.edu It's a tough problem. RF waves travel 300 meters in a microsecond. This is typically more than the communication range of the motes. TEP132/133 prescribes millisecond precision timestampint. The best timestamping precision you can hope for is 2-3 microseconds on average, but you need to hack the radio stack code in order to achieve that. Then, there's the jitter (look at the FTSP paper by Miklos Maroti et al. for a list of different sources of jitter). Janos On Fri, Feb 27, 2009 at 3:41 PM, Islam Mohamad Ameen Al Jarrah g00022...@aus.edu wrote: Dear All, I need to send a packet from one mote to another with a time stamp where it will be used to calculate the distance between the two motes, and need to send an acknowledgment back to the source also with a time stamp! Can any one help me with this? Regards, Islam ___ Tinyos-help mailing list Tinyos-help@millennium.berkeley.edu https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help ___ Tinyos-help mailing list Tinyos-help@millennium.berkeley.edu https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help ___ Tinyos-help mailing list Tinyos-help@millennium.berkeley.edu https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help
[Tinyos-help] Time Stamp
Dear All,I need to send a packet from one mote to another with a time stamp where it will be used to calculate the distance between the two motes, and need to send an acknowledgment back to the source also with a time stamp! Can any one help me with this?Regards,Islam ___ Tinyos-help mailing list Tinyos-help@millennium.berkeley.edu https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help
Re: [Tinyos-help] Tossim !! + make pc
Dear Mr. Joao, Thanks for you, Actually I have installed tinyos on my own laptop and I have tried to compile the applications in cygwin with the same account but it didn't work with me!! I have found one solution on a website, I'll try it and if it works I'll let you know. Thanks again, Islam - Original Message - From: João Carlos Giacomin giaco...@ufla.br Date: Tuesday, December 16, 2008 8:32 pm Subject: Re: [Tinyos-help] Tossim !! + make pc To: tinyos-help@millennium.berkeley.edu Islam, I had some problems like this, when I tried to compile applications in Cygwin. I could make TinyOS work on Cygwin only when I logged in Windows XP as the same user that installed TinyOS. It TinyOS was installed by the user USR1, only USR1 had permission to compile applications. But USR1 shares apps directory, another user, like USR2, can create another subdirectory there and develop his application there. Example: USR2 create a subdirectory /apps/AppUSR2 and copy Blink.nc there. Then USR2 can copile Blink.nc. If somebody kowns how to fix this problem, please tell me. * João Giacomin Prof-DCC-UFLA * -- Original Message --- From: Islam Mohamad Ameen Al Jarrah g00022...@aus.edu To: tinyos-help@millennium.berkeley.edu Sent: Wed, 10 Dec 2008 23:29:15 +0400 Subject: [Tinyos-help] Tossim !! Dear Sir, I am trying to run tossim simulator but unfortunately I have a problem using the command make pc in cygwin !! the error looks as follows : $ make pc ../Makerules:26: /opt/tinyos-1.x/tools/make/Makerules: No such file or directory make: *** No rule to make target `/opt/tinyos-1.x/tools/make/Makerules'. Stop. How can I fix this problem in order to use tossim? another question : Is there any documentations that could help me to run calamri code on MICA2 motes?? Regards, Islam --- End of Original Message --- ___ Tinyos-help mailing list Tinyos-help@millennium.berkeley.edu https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help ___ Tinyos-help mailing list Tinyos-help@millennium.berkeley.edu https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help
[Tinyos-help] Tossim !!
Dear Sir, I am trying to run tossim simulator but unfortunately I have a problem using the command make pc in cygwin !! the error looks as follows : $ make pc ../Makerules:26: /opt/tinyos-1.x/tools/make/Makerules: No such file or directory make: *** No rule to make target `/opt/tinyos-1.x/tools/make/Makerules'. Stop. How can I fix this problem in order to use tossim? another question : Is there any documentations that could help me to run calamri code on MICA2 motes?? Regards,Islam ___ Tinyos-help mailing list Tinyos-help@millennium.berkeley.edu https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help
