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Paul, I think they already do that. But what do you mean by a robotic/automated dispensing system? A robot goes around handing their daily medicine to them? 
Paul. For your level 5.. If there is no way of turning it off without taking the batteries out, what if the person has woken up? He needs to remove the batteries? That would be some annoying clock to do that every morning before going to work or something.
hi guyz...!!it was a wonderful responce from ur side!!! thank you very much!well.. the way i would like to design a machine is AN AEROPLANE.. rather a UAV... with a camera fitted on it!! hows is this??with a remote in my hand and it howers over an area and i shuld get the photos of that area!any ideas abt this or nearly to somthing like that??one of my friend made A PROSTHETIC ARM for disabled people... !! its marvelous!!
also, like George says the type of camera is important so is the weight. an ip camera would also be nice as you could get live images as well as static photographs.
Quote from: paul.fr on 19/04/2007 14:25:06also, like George says the type of camera is important so is the weight. an ip camera would also be nice as you could get live images as well as static photographs.How would you propose having the down feed for the live images - are you thinking of having a wide bandwidth radio transmitter in the helicopter? I suppose you would look at a WiFi or bluetooth connection.There are other advantages in movie recording, in being able to generate a strip of overlapping frames, but you will be limiting the number of pixels in each frame in order to get the signal bandwidth within reasonable constraints (and possibly to limit heat generation, etc.).
yes, WiFi. you can pick a decent unit up for about £100, and they have built in software to transmit on their own server.you can also use software to publish the live images on the net for other to watch. i use a similar system for my home security (although i use password protection). i can monitor my cameras from anywhere i happen to be.
The kind of cameras you get for this will use cheap plastic lenses, although given the very low CCD pixel count, the lens is not the limiting factor.It depends on what you are looking to achieve. High definition poictures you will not get - but it will be cheap, and easy to implement, and you can offset the lack of definition by flying lower, and building up a strip of images (again, storing GPS data alongside will help patch the strip back together again).