hi,
im a student and currently i am doing a project in a hospital to remind everyone to wash their hands, my group came up with 2 ideas, RFID and/or sensors which is integrated with the hand rub which act as a switch to verify hand rub have been done.
firstly,
RFID,we could not figure out how much is would cost and how it works. it is because we need to ensure EVERY staff to wash their hands as these doctors tends to forgot and did not bother to wash their hands, and also in the other hand, we want everyone to do also as there are also visitors. cost is an issue and RF might affect the patient health? and is the programming long?
sensor, we could not figure out how to place the sensors as there will be people moving around and could not determine if the person has already washed their hand. but sensors are much cheaper comparing to the RFID..
need ideas and advice from everyone here.. i really could not think of other way to deal with the sensors.. please help me!
thank you for reading 
