home *** CD-ROM | disk | FTP | other *** search
- Newsgroups: sci.electronics
- Path: sparky!uunet!sun-barr!cs.utexas.edu!asuvax!ennews!mcdphx!schuch
- From: schuch@phx.mcd.mot.com (John Schuch)
- Subject: Re: People tracker
- Message-ID: <1992Nov9.175058.15797@phx.mcd.mot.com>
- Sender: news@phx.mcd.mot.com
- Nntp-Posting-Host: bopper2.phx.mcd.mot.com
- Organization: Motorola Computer Group, Tempe, Az.
- References: <1992Nov6.164950.28812@njitgw.njit.edu>
- Date: Mon, 9 Nov 1992 17:50:58 GMT
- Lines: 17
-
- In article <1992Nov6.164950.28812@njitgw.njit.edu> rxy5310@hertz.njit.edu (rolan yang ee stnt) writes:
- >I threw together a motorized water gun that can rotate on the
- >3 axis controlled by computer and stepper motors. I'm looking
-
- What's the third axis? I presume two of them are altitude and azmuth.
-
- >for an inexpensive way to 'track' people who would walk near it (within 15ft)
- >possibly using ultrasonics, some photocells, or anything cheap (no radar,
- >laser phase-shift or anything expensive).
-
- Ultrasonics are probably the best bet. Rotate the beam, like they do on
- the top of the HERO robot, and point at the closest thing. Actually, with
- this you could also have it shoot when something enters a predetermined
- range. Sounds fun :-)
-
- John
-
-