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Hey, I'm sure many of you have seen that new game which involves using ekg/eeg sensors and a ball, wherebuy 2 people sitting opposite to each other will try to still their mental acitivity and win the game. The ball will move towards the person who has his mind most at ease.
I'm trying to replicate this in C51, but haven't found any material to help me, except an EKG schematic without any guidance on how to make the sensors.
I hope you guys can help me create a replica, hopefully to allow others to innovate on the game by making other types of games using the same concept as well as allowing people with less money to be able to have a bit of mental fun.
I'm sure many of you are also interested in this, and if we can work together, we can create a DIY guide for this game and also use the concept for other purposes, e.g. mind training applications etc.
Hope someone can help me.
Thanks
I hope you guys can help me create a replica
will you share your profits with us?
I'm sure many of you are also interested in this
Oh, yeah.
This doesn't really have anything to do with Keil products at all, does it?
If you want to set up your own collaborative open-source project for this there are plenty of places to do that - but this isn't one of them!
See: http://www.keil.com/forum/
"The Keil Discussion Forum is an open forum where you may post questions and comments about Keil products."
I hope you guys can help me create a replica,
Well, do you want a game based on actual physiological principles, or will a random number generator do?
The latter is trivial, the former is a truly complex task that a C51 is probably unsuited for. And getting the firmware right will be the _smallest_ problem, since the analog side of measuring physiological signals is far from simple - it's about things like:
- proper interfacing to the body - safety(!!!, you're planning to hook up things to a real, life human, right?) - signal quality (electrical signals coming from the body are _tiny_, you'll need a precision at least in the ~10 uV range for a useful ECG, and you'll probably be dealing with microvolts (or even fractions thereof) if you want to do an EEG)
and probably a bunch of other things that even I don't know about since they're handled by the hardware engineer and not the firmware guy (me).
A long thread with selling arguments for why we should help.
But one thing missing: Why are you doing this? School project? Research project? Commercial project?
Exactly why are you so very interested in rallying the forces for this project?
Interesting ,very interesting!
As far as i can see from the images iv'e seen, the system makes a very coarse activity cerebral measure. I meen, to do a complete brain mapping (involving all the brain areas) you need around 24 sensors and some of them are far away of the game head bands.
Is important to note that in a real brain map, the heart beat is not taked in account at all, just the very low frequency waves ( under 100 Hz) around the cerebral cortex.
So... i can imagine that the bands are taking in account just the frontal lobe (Higher cerebral conscient activity) btw the one damaged in most of the serial killers . If i'm not wrong, this area controls some body movements as well (the eyes following a light, the tongue and so on) but not shure.
then...you can start to create a low pass filter and a very good aplification and see it with an oscilloscope, use some "volunteers" (aka family, lol ) with diverse stress, anger, happyness, etc levels, move the electrods around the frontal area to get the right spot ( use special gel to make a good contact with skin), then you can choose the game "rules" since they are a bit arbitrary and depends of what one choose to take in account, isolate the "good waves" and then you have the tip of the iceberg.
You properly can design a system for lower cost with the same feature. Think about all this source:
1. Your skin (cheep and easy but some errors reading) 2. Your heart beat (cheep and easy maybe some errors reading) 3. Chemicel change on your skin 4. Signal from your brain to some parts of your body
We know our heart beet will slow down if we are at rest and may be even slower if our mind is relax. For begin, I think you can try to measure heat-beat and use a 51 to do the calculation; since you have only two person to compare, it should be easy. For accuration, I don't think it will be because the heart beet only change so much.
Just a humble input about this interesting project.
Add me to the projet.
use some "volunteers" (aka family, lol )
I think I haven't been clear enough:
Do not attach any electrical device to a living person unless you know exactly what you are doing.
(e.g. having to ask in a forum means not knowing exactly what you're doing.)