RubyConf 2015

Creando aplicaciones RFID con Ruby

Adam Walker  · 




Extracto de la transcripción automática del vídeo realizada por YouTube.

- All right, well this is Tagging Your World With RFID or how to annoy your friends, family and pets. Which is something I'm a bit of an expert on. You can find me on Twitter at @ACONTIUS, you can also follow my live tweet streaming that I have that has extra information, you know links to details about RFID tags, that sort of thing, at #RUBYRFID.

So I work in laboratory information management software. Basically what we do, I personally track vials and robotic freezers using RFID tags. It's freaking cool, it's a lot of fun. The company that I work for JMI Laboratories, we actually test the antibiotics and find out which antibiotics are developing, basically bacterias developing a resistance to.

We've been doing this for 15 years. We pass the information off to the FDA, we pass the information off to the European Health Agency and then of course we help drug companies develop better antibiotics as a side effect. Lots of data to sift through, it's a lot of fun.

And while I'm up here I also kind of wanted to promote Ruby For Good, I'm sure some of you have already heard about it. If you haven't, you can visit rubyforgood. org, also talk to Sean Marcia or talk to, to Chris Sexton. It's basically a weekend hack-a-thon where you're helping nonprofits and open source.

And we go out and last year we had kittens 'cause we worked with the Humane Society. This upcoming year there's gonna be red pandas. We're gonna actually be at the Smithsonian Mason Research Center in Virginia. And it should be pretty interesting. So a couple personal things about me.

I think you'll understand what I'm doing later on with some of the hardware, if you, for those that don't know me, by knowing that I'm a little bit of a weird dude. I tired to bring back this '40s thin 'stache, it did not work out. I generally hike in a kilt, in Crocs.

I was a professional chef. Not before IT, I quit IT, went to culinary school, became a chef, came back because that turns out that really sucks. I go to a lot of punk rock shows with my daughter who is 18 and surprisingly not too embarrassed by me. I'm Batman.

So I work remote. One of the big reasons is because I have, this is what I was known for when I worked in an office is I was the person that did these horrible things to their office mates. But here's the thing, I didn't actually have that many co-workers so it was mostly just this guy.

And we're still dear friends, for the most part. Random factoid, so this is a photo of outside of the plane on the way here. Absolutely beautiful, absolutely fascinating to me. And I've done quite a bit of traveling, but at the age of 38 this is actually the first time I've ever been on a plane.

This is also the first time I've ever spoken to a group this large. So I figure it's a whole thing of firsts. So let's actually move on to, what is RFID? So RFID is a radio-frequency identification. It is the use of, wireless use of electromagnetic fields to transfer data.

You know you can do this for automatically identifying and tracking tags that are attached to objects. That's kind of the Wikipedia definition there. But really no explanation of RFID or magnetic fields and that sort of thing is gonna be complete without talking about Tesla.

I'm sorry Nikola Tesla. You know, Tesla was without a question the greatest geek that ever lived. And actually if you're following that tweet stream, there's a link to an explanation of why he was the greatest geek to ever live. So in 1894 Nikola Tesla used resonant inductive coupling to wirelessly light up phosphorescent and incandescent lamps.

Resonant inductive coupling is the near field wireless transmission of electrical energy between two magnetically coupled coils. Resonant energy transfer is the operating principle behind passive RFID tags, which you're gonna see here today, wireless charging, which I think a lot of people have probably adopted at this point, as well as contactless smart cards.

Which if you've worked in the government I'm sure you've dealt with. So thank you Nikola. There's a lot of practical uses for RFID and a lot that many people in here have already used, such as races. Race timing, the bibs as well as shoe tags have become very common, very popular.

DVD kiosks, I don't know why I put this one here, these will be gone in like a year. Authentication, doors, computer systems, medical carts. This is becoming more and more and more common. Toll collection, I'm sure that quite a few people here have E-ZPass or whatever is common down here in Texas.

And asset tracking. This is the bread and butter of the RFID industry. This is what has driven prices down. It used to cost several dollars to buy a single RFID tag not that long ago, and now you can buy a paper tag for 13 cents on a giant roll because companies like Walmart and Best Buy and all these large big box stores are using it.

Manufacturers are using it to track their assets. It's easy, it's cheap and it's certainly become more and more accessible to the rest of us, not just to those industrial purposes. And getting back to assets tracking for a moment, this is what I get to do, which is really fun.

'Cause you're like oh, we have a bunch of vials of MRSA, cool, don't touch that. And actually there's, there's a couple other random uses that I wanted to mention. One just wireless access points and smartdust. There's a thing called the Monza X-2K, it's a UHS RFID reader.

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