I was going to suggest a combination RFID/USID system but I’m not sure of the node to node distance in those systems.
RFID passive is pretty short range. The current system includes RFID active tags to encode the unique ID for each transmitter, but it’s really the 900mhz system that does the grunt work.
I forgot to mention that the whole system has to be small enough to clip to a miner’s belt or helmet. Reliable enough to work despite a lot of physical abuse, battery sipping enough to go days or weeks without AC, and completely sealed so there’s no chance it can generate a spark.
It’s a heck of a project, but actually both fun and rewarding since it directly contributes to improved safety.
Oh… USID is active sound but it can’t be sealed since it’s basically a speaker and that would muffle it. The lack of sealing can be an infectious agent issue in a hospital setting.
Updated version of the app for charting user acceleration and gravity. Much prettier with new features of 1.3.
@Mark Cool update! I noticed that you have
`supportedOrientations(PORTRAIT)`
in your Setup(), but when I run it in Landscape it works just fine?!?
Due to a number of constraints you have to place the supportedOrientations() call outside of setup() in global scope.
Otherwise it will lock the orientation once it rotates into it, but the viewer will start up in whatever existing orientation you are in.
Hi @Mark, I updated your trend graphics program for the wiki - I still love it! Used text() to replace @Bortel’s pre-text() über hack.