Darragh Grealish

Sports Camera are dominating over the Flipcam market

Grealish — Fri, 24 Jun 2011 15:57:56 +0000

Something i’ve noticed definitely is the once to be killer can was a flipcam. A step up from a camera phone. But it wasn’t ready for the sports market. Recently I got a GoPro Hero HD. This is a waterproof wareable sports camera with a wide enough lens to not just grab a stunning panorama shot but also yourself in Action!
That simple act defined its success for people. It has the photo quality. The flexability and the price tag to attract people to buy just for sports.

We can certainly see the change when Cisco drops flip cam company it purchased a a few years back.

… more to com

The missing gap in the Sky!

Grealish — Tue, 31 May 2011 15:08:33 +0000

..More to come but; Ever wonder whats missing between this idea of the Cloud and your infrastructure?

Technology Standards

Grealish — Sun, 03 Jan 2010 18:32:51 +0000

The importance of standards in industry, I was taking the TGV train from Montpelier to Lyon and noticed them compled together

This photo was taken in Lyon while changing trains to Geneva. was too dark to get a good photo of the actually coupling but a good search around on the web and your bound to find one.

You had two different generation of the TGV sets coupled together to form a single MU (Multiple Unit) operational train. And this had to work on the high-speed line from Montpeille and Lyon at +300km/hr without getting into too much technical detail the point I want to make is; even with something that costs millions developed together in a consortium major organization are able to keep a standard interface and understand the importance to do so. I see everyday in the IT industry companies struggle to keep up with standards and here we’ve got two different generation of trains working together probably more then 10 years apart in development! but they work! I know there is allot of argument around this topic but just seeing this just struck me when I was travelling over the christmas.

A provide a track record in an “Investment in Standards” is what will be the next question i’ll ask

GoBus WiFi Performance

Grealish — Thu, 20 Aug 2009 15:37:52 +0000

So on my various trips back to Ireland I started to take the non-stop airport service to Dublin Airport from GoBus! As I had my laptop with me to try out the on-board WiFi a few times now, I decided to run a Smokeping over the route, just to see the latency experienced across the journey, the script was set-up before for another project but seeing I’ve never done any network tests on 3G access until now, it would be interesting to see the results of true mobile internet was like. So using Smokeping and a laptop I went about running the test in background. As the objective was to work on the internet and monitor the latency from a few points on the internet . It would give a good feel for how the 3G-WiFi Gateway handled multiply users over a single 3G connection.

The Tests

I picked sources, Google.ie, Eircom DNS and IBB. this is an example of google.ie over 1hr I got an 1.2sec avg and up 65.33% on packet loss, this was requesting 20 pings over 300s. So quite spread out but as GoBus is a non-stop service it’s hard to say if it improves when the 3G uplink stops roaming across the mobile cell sites. Below is an example of the ping over 1hr, If I had a bluetooth GPS one could log the position information and match that along the route as some locations long the journey you would lose the connection for almost 4sec’s. for IM and broweing thats fine, and I think i was the only passanger online so with a few people online service won’t be the best.

5min average pings to Google.ie

Hardware

to make this possible tehy use a 3G Gateway for WiFi Backhaul, it’s got all the advance features of any enterpirze access point, (WPA2 Enterprise & 802.1x) but with the added benifit it can provide up to two possible WAN links for seamless connectiviy. However it wasn’t what we expearenced onboard GoBus. but the H/W isn’t to blame as

Moovbox M200 Mobile Broadband Gateway

Starting back posting

Grealish — Wed, 24 Jun 2009 17:31:01 +0000

Ok i really don’t blog/blag allot! and got to start documenting some stuff now as it would be handy for notes that I always lose in TXT files etc. so planning on using this space to just note some of the important parts of my work

Darragh

Sensor Tweets and Twitter

Grealish — Tue, 24 Feb 2009 18:12:35 +0000

This was a little program that i hacked together before going to the Twitter Fest in Galway in January , Just something fun to have to do for the evening. What it is;It’s a SUN JAVA SunSpot Modular Wireless Sensor device that has a stackable components for developing various different applications around sensors.. You’ve got USB and wireless connectivity, temperature and humidity.3D Accelerometer, thri-colour LED’s that can be combined with the accelerometer data to display a spinning text as a wave.

In this little example, a J2ME applet is running fetching the latest Twitter post from Ina feed and displaying them as I wave the device back and forth. It’s not so clear because of the camera and light but you can make out the laters moving by as the device push a 140 character string of text to the array of LED’s The time it takes for your brain to peace together the flashing LED’s helps to make it display the full characters in the air!

Darragh

Big Move!

Grealish — Mon, 02 Feb 2009 18:29:19 +0000

This week we did the big move yet again. But to a more perment location for the Robot Arm. All went well, the weather wasn’t as crazy as the last major move. After 4 suscessful weeks in the Galway Museam. Lots of visitors etc..

So here’s the clips from the day;

Darragh