This could be a problem, any ideas to get around this? Richard ----- Original Message ----- From: "Olin Lathrop" To: Sent: Wednesday, April 18, 2001 1:49 PM Subject: Re: [PIC]: Need some help with a PIC monotoring system > > How about each check in station and the ID unit the guard carries each > have > > a serial number device such as a Dallas i-button in it along with an RTC. > To > > check in the guard holds his ID device against the check in point device > at > > which point they exchange serial numbers and log the time of exchange. > This > > would be done through an RFID type technique. > > Hmm. So a group of thieves would only need to surprise the guard on his > rounds, tie him up somewhere, then have one guy walk around as usual with > the ID tag. Meanwhile the rest of the gang has all weekend to clean the > place out. > > > ******************************************************************** > Olin Lathrop, embedded systems consultant in Littleton Massachusetts > (978) 742-9014, olin@embedinc.com, http://www.embedinc.com > > -- > http://www.piclist.com hint: The list server can filter out subtopics > (like ads or off topics) for you. See http://www.piclist.com/#topics > > > -- http://www.piclist.com hint: The list server can filter out subtopics (like ads or off topics) for you. See http://www.piclist.com/#topics