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Shopping for Building Access Security?
JoeCommodore asks: "At work we are planning a new facility, which will combine a lot of departments into one bigger building. We think it may be time to forgo analog key access and go with access cards (or something like it) for physical security. I could see the benefits (we don't have to collect keys and re-do locks on staff turnover, selective room access, access logs, and so forth). Beyond this, we are pretty clueless on the ins and outs of such systems, so I am asking those of you who have had to shop, install, administer, or even just regularly use such systems, what are your thoughts, recommendations, or opinions? This is pre-building so we can do just about anything within reason."
We actually discussed this topic quite extensively recently here: http://www.servomagazine.com/forum/viewtopic.php?t =4949
Originally, my boss Pete suggested that we use saliva - that would make entering the building a matter of simply licking the sensor.
Later on (in the discussion linked above) we thought it might be even better to try and grab some DNA from urine. That way, you could kill two birds with one stone - gain entrance to the building and relieve your bladder all at once. If your company does periodic drug screening then you could just integrate that into the process too.
Still, nothing beats the simplicity of just licking the sensor.