gated turnstile rapid proto using BS2 and PDB

RPratt

as a security integrator, I have several customers who have gated turnstiles of some type in their corporate lobby area for visitor management. and generally about once every two or three months, I end up having to go to their site to work on them. now my boss (being the capitialist that he loves to be lol) goes bug-eyed every time we get an invoice in from one of the manufacturers of these lovely contraptions for a replacement part - specifically the hefty price tag lol! and every time, he swears that we could do it cheaper and better. so finally I decided to put it to the test. after working my way through the "What is a microcontroller?" kit and the "Stampworks" kit, I started laying out my idea and came up with this. please keep in mind that this is just a quick build to prove a point, and not a finished "production item" by any means. but it did prove enough of a point to my boss that he is willing to invest towards us developing a production model. your comments and thoughts would be appreciated on this project. sample code, schematics and pictures attached below. thanks!

SRLM

Here's a link along the same lines. Basically, it discusses methods to count large amounts of people quickly. Nothing has come of it yet, but maybe one day...

http://forums.parallax.com/showthread.php?p=740669

RPratt

this design doesnt actually track the amount of people through the system. its only designed to provide entry through the gate for one person at a time (either entry using a prox card tied to an access control system or open exit), and monitors the IR detectors to emit an audible alarm signal if more than one person tries to pass through at a time or tries to hold the gate open by blocking the swing arm. provided that my boss follows through with all the funding, it will include an integrated access control system for complete stand alone operation and card holder programmability through a simple web interface (I am working on that with the propeller chip set - but just getting started with them). but I could definitly see where setting up a cycle counter to measure the duty the units are going through would be a great idea. thanks.

Chris Savage

RPratt,

It would be easier for other members if you posted the code as a .BS2 file or put it in a ZIP file rather than PDF. Many will find it difficult to get the code from the PDF document to the BASIC Stamp Editor, and the formatting will almost surely be lost. It is a nice concept. Take care.

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Chris Savage
Parallax Engineering

RPratt

sorry about that Chris. just a habit to put everything into·a PDF to send out to folks. here is the actual code file.