Hi Renjie, If possible, could you please post a reference to the team that used RSSI?
Regards, Shankar. On Sat, Mar 29, 2008 at 12:07 AM, David <[EMAIL PROTECTED]> wrote: > If I recall correctly, the radio frequency used by motes is absorbed > by water. Thus when a person moves between one mote and another the > RSSI should drop a bit. Multipath could confuse things (maybe someone > walks through another part of the room which the signal is bouncing > through on it's way from one mote to another). It might work better > work when the 2 motes are close to each other (the rssi value is very > high, it drops off quickly after a short distance. Your mileage may > vary. > > David. > > On Fri, Mar 28, 2008 at 8:09 PM, renjie huang > <[EMAIL PROTECTED]> wrote: > > I remember one team used RSSI to calculate how many people went through > > during a competition. They got very good result. Maybe they added > certain > > algorithm. > > > > > > > > > > On Thu, Mar 27, 2008 at 4:07 PM, Matthew Melucci < > [EMAIL PROTECTED]> > > wrote: > > > > > Hi, I am working with mica2 and MTS300 sensor boards. I am doing a > > > project for school to track the amount of people who enter through one > > > doorway and exit through another. So I do not need to determine if the > > > person is entering or exiting through that door. My problem is I was > > > going to use the light sensing to do this but I am worrying it will be > > > too complicated to determine because I have been playing with the > > > sensors and the readings jump around too much. Another issue I have is > > > not understanding which applications do what. I know that the boards > > > are supposed to sense temperature and other things but all I have been > > > able to do is get the blink working and the light sensing. Is there a > > > better way or application to determine if someone walked by? Thanks > > > for any responses. > > > _______________________________________________ > > > Tinyos-help mailing list > > > [email protected] > > > > https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help > > > > > > > > > > > -- > > Renjie Huang > > Sensorweb Research Laboratory > > http://sensorweb.vancouver.wsu.edu/ > > Washington State University > > _______________________________________________ > > Tinyos-help mailing list > > [email protected] > > > https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help > > > _______________________________________________ > Tinyos-help mailing list > [email protected] > https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help >
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