Archive for June, 2011

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Elisa Viihde downloads

Wednesday, June 29th, 2011

I have been using Elisa Viihde service for almost a year and I can say I am pretty happy with it. After upgrading to this service also my Internet connection from Elisa started working without too much problems (earlier it worked badly for long time).

Elisa Viihde allows me to record TV programs to Elisa servers and watch them later using IPTV technology. Watching works both on set-top-box and PC. The recordings definitions can be done with set-top-box, PC or mobile phone.

The service allows easily to watch the recorded programs on PC (using VLC plugin on web browser). The normal service does not have built-in option to downloaded recorded programs. It is possible to do this manually with some work (look at web page source code to get video URL and then download that).

Fortunately there is also an easier option for downloading: Elisa Viihde: Add download links to recording listings script adds a download link next to each program in the list of recordings. When the download link is clicked it will fetch the URL from the ‘View’ page for the recording and send you directly to the downloadable video file. This script needs Greasemonkey to run on Mozilla Firefox web browser.

The downloaded files are in MPEG transport stream format. Those files can be viewed with VLC.

Posted in Firefox, Products | 5 Comments »

Interesting servo control circuit

Monday, June 27th, 2011

I have earlier written about 555 timer design contest. 555 Servo Controller was winner in several categories. It looked so simple and “have seen that eariler” type of circuit that I wondered why this was so winning circuit:

555servoC52jr

Finally after few days I got time to check out the Simple 555 timer based servo controllers page to see why this won. The circuit is simple, but the video showing the applications of it was pretty amazing. So I no longer wonder why this circuit got the prices. This 555 timer based analog robotics video is very interesting to look at if you are into robotics in any way.

Posted in Electronics Design, diy | 4 Comments »

Nokia N9 Meego phone

Wednesday, June 22nd, 2011

I have earlier written about MeeGo Linux and how Nokia’s work on Meego is fading. Nokia has promised to release one Meego phone this year, and there has been many rumors on that device.

Nokia has finally revealed some details on their Meego phone. Nokia Introduces MeeGo-Powered N9 Phone. For details check this Nokia N9 first hands-on! video from Engadget and details from Nokia N9 web page.

The details that can be seen is that the user interface of N9 looks pretty different than the MeeGo Handset example pictures shown at MeeGo web site. So Nokia has developed something of their on for this phone and not just used the UI the open source project has produced (that did not look too good to me). N9 is based on Meego 1.2 OS, and Nokia has added it’s own Harmattan layer on top of it.

Nokia-N9

Posted in Linux, Mobile, Products | 12 Comments »

Flame party

Sunday, June 19th, 2011

The Flame Party Helsinki yesterday. It was a nice small demoscene event with around 100 participants. The best competition entries made were pretty amazing. This event shows that a modern web browser can do wonders without extensions nowadays. The best competition entries were just amazing. I did some coding for fun, and I must agree that Canvas API feels pretty nice when you get used to it.

The picture below is from opening speech where Tobias Leingruber from Mozilla Labs opens the event.

FlameParty

The winner demo Slamdown by Traction and Hedelmae was pretty amazing. Here is a video of it:

Posted in Computers | 1 Comment »

Interactive Billboard Campaign

Friday, June 17th, 2011

McDonald’s Brilliant Interactive Billboard Campaign article tells about interactive billboard campaign ran in Sweden recently. The concept is a simple one in that users get to control the billboard and turn it in to a personal game.

What is especially interesting about this technology is that you don’t actually have to download an app, which normally causes quite a big barrier to entry. Instead the phone picks up your location and you can join the game via a website address. It’s interesting to see more and more campaigns combining mobile and billboards.

Posted in Mobile, WWW dev | No Comments »

Proper Grounding of Instrument and Control Systems

Tuesday, June 14th, 2011

Proper grounding is an essential component for safely and reliably operating electrical systems. Improper grounding methodology has the potential to bring disastrous results from both an operational as well as a safety standpoint. There are many different categories and types of grounding principles.

Proper Grounding of Instrument and Control Systems in Hazardous Locations paper’s primary focus is to demonstrate proper grounding techniques for low voltage Instrument and Control Systems (IACS) that have been proven safe and reliable when employed in process control facilities. The grounding practices discussed are intended instrument and control systems that operate at 50 VDC or less.

groundingtypes

It is commonly accepted that grounds in the process industry can be broadly classified as either dirty or clean. Dirty grounds inside the facility are typically those 120VAC, 220VAC, 480VAC power grounds that are associated with high current level switching. Examples of clean grounds are the DC grounds, usually 24VDC, that reference the PLC, DCS or metering/control system in the plant.

Structural grounds physically and electrically tie the facility together. In the typical plant or house, the 0V ground reference is most often a heavy gauge copper wire embedded around the base of the building and tied into ground rods at the corners as well as into the AC ground feeds at critical junctures. In a ship, it is the hull of the ship; on an offshore oil/gas platform, it is the structural steel of the platform.

It is necessary to adopt a consistent approach throughout your systems, employing star point grounding and proper grounding bed techniques. Recommended codes of practice are drafted after considerable study for the safety (both you and your plant).

Posted in Groundloop, Industrial Automation | 4 Comments »

Apple’s iCloud data center

Monday, June 13th, 2011

A peek inside Apple’s iCloud data center web page shows up some photos of the exterior and interior of the new $1bn data center the company has built in Maiden, North Carolina to support its new iCloud storage cloud. There seems to be Teradata gear, maybe HP and NetApp. Teradata data warehousing appliances are actually OEMed Dell PowerEdge servers that run the company’s clustered database. Rack servers look like Hewlett-Packard’s ProLiant DL380 G7 Xeon-based servers and NetApp FAS6200 network-attached storage arrays.

server3d

Posted in Computers, Data Center and Cloud | 1 Comment »

Open Spark Project

Friday, June 10th, 2011

See Girl Talk, Lady Gaga Performed on Tesla Coils article tells about Open Spark Project that plays music with Tesla coils. Watch the videos.

Tesla Orchestra performing Lady Gaga’s “Poker Face”:

Posted in Off topic fun | 5 Comments »

New tech fails to drive new TV set sales

Thursday, June 9th, 2011

TV manufacturers try to put in all kind of new technical gimmicks to their products. Top telly tech fails to drive new set sales. The technologies telly makers are promoting in a bid to persuade punters to replace existing TVs are failing to excite consumers: LED backlight technology, internet connectivity and 3D. LED was the strongest driver, followed by internet access and, a very long way from the average, 3D (only four per cent of Q1 telly shipments).

hdtv

Posted in Audio and Video | 4 Comments »

IPv6 day @ 8 June 2011

Monday, June 6th, 2011

IPv6 has been considered the internet of the future for the past 15 years. I played with it in the later 1990’s. And after it waiting when it will take on, or will it fail. Disruption might be the only way to force companies into deploying IP version 6 (IPv6) networks. The expected ending of IPv4 addresses has not caused panic. World IPv6 Day coming at 8 June, 2011 (after a few days) might be the extra disruption that is needed. The goal of the Test Flight Day is to motivate organizations across the industry to prepare their services for IPv6 to ensure a successful transition as IPv4 addresses run out.

Google, Facebook, Yahoo!, Akamai and Limelight Networks will be amongst some of the major organisations that will offer their content over IPv6 for a 24-hour “test flight”. I expect to see some hiccups, although most of the things should work without problems. Google expects less than one per cent of requests to fail on IPv6 day. The vast majority (99.95%) of Internet users shouldn’t see anything out of the ordinary. For the remaining 0.05% of users, misconfigured or misbehaving network equipment, particularly in home networks, may impair access to participating websites during the trial.

You can test your IPv6 connectivity in advance with http://www.kame.net/, http://test-ipv6.com/, Wireshark IPv4 and IPv6 Connectivity Test or ipv6test.google.com. Don’t worry if you don’t have IPv6 at all (just “old” IPv4 connectivity), you shouldn’t have problems on websites that add IPv6 support on World IPv6 Day.

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Posted in Computers, Telecom and Networking | 16 Comments »

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