Electronic hide and seek?

[delta555]

After just watching the scrubs episode with an electronic hide and seek, i have tried to look for one on the internet, but as of yet i have gotten nowhere. I could make one, but i cant be bothered (Electronic Engineer student).

Can anybody help?

 

[SourChipmunk]

Describe how they did it in Scrubs, perhaps we can invent something for the forums.

 

[delta555]

Describe how they did it in Scrubs, perhaps we can invent something for the forums.

They had a penny sized object and a hand unit which beeped differently for how far away the transmitter was.



Now, im thinking that the trnasmitter would probably have to be powered, and not just a passive RFID (in the show they needed the transmitter to be small so the janitor could swallow it) which i dont mind.

I wasn't a directional jobby, just range, so that simplifies it a bit. Now i could draw something up using a certain frequency and analysing the signal strength or maybe degredation in a predetermined signal, but i would really like to just buy one.