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- From: wa197@sdcc12.ucsd.edu (Dave Mackie)
- Newsgroups: sci.electronics
- Subject: "dumb" pagers
- Message-ID: <42537@sdcc12.ucsd.edu>
- Date: 14 Dec 92 16:01:30 GMT
- Article-I.D.: sdcc12.42537
- Sender: news@sdcc12.ucsd.edu
- Organization: University of Confusion
- Lines: 26
- Nntp-Posting-Host: sdcc12.ucsd.edu
-
- A friend of mine works in a large warehouse which stores thousands
- of boxes for long periods of time (between 1 and 5 years).
- The firm sometimes misplaces boxes and has to replace the contents -
-
- He asked me to look into the idea of "tagging" each group of boxes
- with devices which could be triggered to beep if needed.
- (if a box wasn't on the expected shelf you could "page" it and the
- beep would help you find it among all the other boxes). Direction
- and range information isn't necessary because the signal is audible.
-
- I thought of a "dumb" pager; no message capability, no vibrator.
- Just a simple (loud) beeper in a durable and reusable case.
- Have a low power transmitter (after all, it's _inside_ a metal
- building - maximum transmit distance 500 meters) page missing boxes
- and follow the beep.
-
- Does anyone have pointers to such a system or clues on where to
- steer someone interested in building same?
-
- Response summary posted if sufficient interest.
-
- Thanks in advance.
-
- -dave
- dmackie@ucsd.edu
- 70641.3141 Compu$erve
-