Finding people

Dgswaner

I'm working on a robot, I would like to have it seek out people in a room. my thoughts were to have the robot move to a spot, and sit for a minute or two... or as soon as it locates a person. while sitting it would monitor one or more motion detectors. if the motion detector goes off. then persumabley, there would be a person in that direction. I would then sweep with a Ping sensor determine the most open path in the direction where movement was detected. The robot doesn't need to touch the people it detects a foot or 2 would be fine. but I think the above method is a little coarse espically if people are close. does anyone know of a different sensor that I could use to detect people at close range, 1-3'? I thought I read somewhere a while back about using dielectric curetnt to detect people. I've searcher and I can't find any other topics that talk about this. Does anyone have experience in this area? any suggestions on how to locate people?


Any info would be appricated

Thanks

Dave

Skywalker49

I have no experience but why not an IR ( heat ! ) sensor.
Does anyone have experience with such techniques ?

Ed

Zoot

The Parallax PIR (Passive Infra-Red) sensor will let you know that something alive is in the room somewhere: www.parallax.com/detail.asp?product_id=555-28027

The thermal sensor array from Devantech (while initially designed for fire-fighting contests and the like) will let you get a rough direction towards a "warm" body. Steve Norris built a Propeller-controlled crawler using this sensor: http://forums.parallax.com/showthread.php?p=615077

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