[Tinyos-help] TOSBase stop receiving message

yicheng y-jie at northwestern.edu
Wed Sep 14 15:26:45 PDT 2005


Hi,

 

I also want to know the answer. Is that multiple notes trying to send
message at the same time causes such problem? Or do you need some TimeSync
for your application?

 

Thanks!

Yicheng

 

 

-----Original Message-----
Date: Wed, 14 Sep 2005 00:14:39 -0600

From: Michael Schippling <schip at santafe.edu>

Subject: Re: [Tinyos-help] TOSBase stop receiving message

To: #AUNG AUNG PHYO WAI# <aung2phyowai at pmail.ntu.edu.sg>

Cc: tinyos-help at millennium.berkeley.edu

Message-ID: <4327BFCF.3020801 at santafe.edu>

Content-Type: text/plain; charset=ISO-8859-1; format=flowed

 

My experience with mica2's indicates that you should be able to

maintain 5 message/sec from 5-10 motes. 16 doesn't streach it

too much, but you should do the math for bit rates into the host.

Maybe the TOSBase buffers or stack is getting trashed at that rate?

MS

 

 

#AUNG AUNG PHYO WAI# wrote:

> Hi all,

>  

> I would like to post a question realted to micaZ mote. Currently, I 

> am setting up a group of 16 micaz motes running with ultrasonic sensors 

> and 1 TOSBase. I send message from all 16 sensors to TOSBase almost at 

> the same time with rate of 5 samples/sec/sensor continuously.It causes 

> the TOSBase stop responding after 2 or 3 minutes.

>  

> I've already used new version of TOSBase. I think this problem is the 

> contention of wireless medium between different ultrasonic sensors. 

> Also, I think the problem is at the TOSBase application that cannot 

> handle too much data at the same time from all sensors.

>  

> So I would like to know what is the main problem in our case? I am not 

> sure what is the actual problem is. I also would like to know the ways 

> to solve this kind of problem?

>  

> Thanks in advance for your help.

>  

> *Regards,*

>  

> *Aung Aung Phyo Wai *

> ** 

> 

> 

> ------------------------------------------------------------------------

> 

> _______________________________________________

> Tinyos-help mailing list

> Tinyos-help at Millennium.Berkeley.EDU

> https://mail.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help

 

-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://mail.millennium.berkeley.edu/pipermail/tinyos-help/attachments/20050914/78d38e45/attachment.html


More information about the Tinyos-help mailing list