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Thread ID: 38994	2003-10-24 03:35:00	off topic- kind of ... foot traffic counters	wotz (335)	Press F1

Post ID	Timestamp	Content	User
186100	2003-10-24 03:35:00	We would like to count the number of people coming through our doors. I figure it will be some kind of light beam system, where the break in the light is counted. Does anyone know where I can find anything to do it?	wotz (335)
186101	2003-10-24 04:12:00	Try asking Apu at your local dairy. ;)	James Busby (341)
186102	2003-10-24 04:53:00	The only problem you have is that people will go "Hey! They have a counter!" and then continually walk back and forward through it, or swing their hand(s) past it so the count goes up... Not that I'd ever do something like that Anyway, you have the question of what height to place it - you don't want it too low as otherwise you'd get each foot (so divide results by the 2 feet to get the one body) as it passes through, along with prams, crutches and what not so you'd end up with a not so good count... On the otherhand if you place it at waist height you only get the waists going through and therefore are sweet.. They work practically by sending out light to a reflective panel on another pane or something and then count up whenever the beam is broken.. IIRC I saw something like that on the DSE website a while back	cyberchuck (173)
186103	2003-10-25 01:43:00	They usually use an infrared beam ... though you couild also use those pressure mats. Mostly the detectors are used as entry "bellls" ... the modern technology of the string attached to the door going to a bell, or a bell attached to the door. You would need some counter to go withy the detector. (I suppose it wouldn't be difficult to wire it to a computer :D) Electronic Australia designed a kit quite a few years ago, which DSE and Jaycar would both have stocked. You might get one from them, though i think DSE sold off most of those kits cheaply. (I bought a couple of them ... for the boxes and other parts. :D)	Graham L (2)
186104	2003-10-27 05:44:00	Infrared light would be good, but how accurate does it have to be? Do you want it to be unique visitors, or anyone? I mean, if you just had people go in and out, divide by two, you should have it accurate, but you may end up with people who walk in and out, then back in because they left something, etc...	Kame (312)
186105	2003-10-27 20:23:00	Yeah infra red and foot pads dont really cut it, they can only give you an idea, there was a lot of research going on into this at Manukau Institiute of Technology when i was there rather interesting. One of the ways they found to work was facial recorgnition, needs more development but a good idea. Really the only sure way is to have some sort of turn style for people to pass thru.	Budda (2736)
186106	2003-10-27 22:38:00	An idea is better than a gut feeling. I understand the limitations of just counting the people breaking the beam, but it is better than nothing. I just need to locate something.	wotz (335)
186107	2003-10-27 22:59:00	Most shopping malls have that sort of thing but they may be a bit Rolls Royce for your needs. I understand they can be tailored to size and work out numbers by images sensors so can split "a group" into x people. Coastlands, in Paraparaumu, has such a system and may be able to help you if you want that sort of thing. Try enquiry@coastlands.co.nz Alastair Mansell	amansell (1919)
186108	2003-10-28 01:06:00	I think we're getting a few of the "what technology can do given infinite money" solutions, whereas what is wanted is something which will work. ;-) Without even going to kits, here's what a quick look at DSE and Jaycar's sites show. DSE L7226 $30 (PIR motion detector) .... L5905 security door beam (light beam)$128 ... have a search for "door monitor". Jaycar LA5010 Visitor Chime looks to be the sort of thing you want . Select Alarms/General Some of these have a contact closure for counting ...	Graham L (2)
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