On Tue, Jun 24, 2008 at 5:22 AM, Varun Jain <[EMAIL PROTECTED]> wrote: > Hi, > > I am trying to implement the multi hop protocols for which I was > implementing the 'AntiTheft' application. I am able to achieve Dissemination > as I can change the 'interval' via the AntiTheft Gui. But while doing the > Collection, it always gives me the same message whether I send it from > TOS_NODE_ID=2 or TOS_NODE_ID=3. The mote running the Root application has a > TOS_NODE_ID=1.
I suggest trying tests/TestNetwork first if you suspect the collection part is broken. ... > As we can see, it always gives the stolenId as zero but it only gives this > once actually the event happens on the nodes. Has anyone got this > problem???? Also when I am trying to achieve multihop with the application, > it does not happen. This is what I do: I keep NODE=3 outside the range of > the 'Root node' and then plug NODE=2 in between such that NODE=2 acts as a > bridge for NODE=3 to get to the 'Root node'. I am using Chipcon's CC2420DBK > which has Atmega-128 and CC2420 with Tinyos-2.0.2 running under cygwin. How > can I solve this problem? When you put node 2 between node 1 and node 3, are you sure that node 1 and node 3 do not have the capability (too far) to communicate directly? CTP will pick, in its opinion, the best routes to the sink. Even if you have a node in between, it is possible that it is less costly (ETX) to communicate directly with the root. For example, if the link between 1 and 3 is still pretty good, it will require about one transmission while the path through node 2 will require at least two transmissions. So, CTP might still pick the one hop path. > I am able to implement 'TestDissemination' application and other > applications doing Dissemination which means that it is working correctly, > but I have a very basic question about 'diddemination'. I wanted to know if > it is possible to disseminate the value from the ROOT ID to a particular > NODE-ID, say we want the BaseStation to change the control parameter of only > one particular node, i think we cant do that in dissemination as it > broadcasts to all the nodes, so is there any protocol in TinyOS to do this > kind of networking which does a multi-hop delivery of data to a particular > addressed node. TyMo. Or you can build a protocol on top of Dissemination. - om_p _______________________________________________ Tinyos-help mailing list Tinyos-help@millennium.berkeley.edu https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help
