Semacode vs QRcode

This week has been a big one in the mobile phone world. Debate about the iPhone and the plans available to use here in Australia has been everywhere. At the same time, however, Telstra has been heavily pushing its venture into barcodes with the introduction of QRcodes to the Australian market.

I say introduction because that is the word Telstra are using, but in reality the technology is not theirs and has been around and freely available for download and use on java capable mobile phones for the better part of a year. They are characterising it as some sort of breakthrough, but of course, it’s not.

That’s not to say I don’t think these things have merit – I believe the concept is great, in fact, I use it regularly at work when testing sites on mobile phones and I don’t want to type in long URLs on the keypad, I just load up a code, snap it with the camera straight from the screen and it takes me there.

What is not well known is that there are two commonly used types of code: Semacode and QRcode, both seem to do the same thing and there’s no reason why you can’t have both readers on your mobile phone, so I am curious about the pros and cons.

QRcode seems to be the underdog, being mostly confined to the Japanese market and (in my simple test at least), almost half as efficient as Semacode in rendering a URL (841 pixels vs. 484 pixels), but it still seems to work well though in use, I find Semacode better.

Comparison of QRcode and Semacode

Efficiency is a key factor for usability where conditions are less than ideal – dodgy cameras, poor lighting, movement and parallex – all make it harder for the software to recognise the patterns, so it’s a given that the less pixels you have to capture and interpret, the less mistakes you will make.

Semacode also seem to be doing interesting things with Social Networking tools and have a Facebook app, so you can generate your own personal card that others can ‘grab’.

The good news is that you don’t need to make a decision. Telstra are saying in their ads that you ‘get the software from your Telstra dealer’, like it’s some exclusive deal, but in reality you can download both readers freely: I’ve been using the readers from Semacode and Kaywa, but I’ve just found this one called beetagg which apparently reads both.

You can also create codes easily, with loads of open source libraries and online tools, once again from Semacode, Kaywa and there are generators that do both from Nokia and Beetagg.

Enjoy 😉

the appstore door is open

Not officially launched yet, but if you search for likely keywords (try ‘photo’) in iTunes Music Store, your results might include some applications.

app store

Click through to “see all” and you’ll be presented with a heap of apps you can download and install – yay! I’ve only been getting the free ones, but there’s loads in there to buy also and not stupidly priced either – I think this is going to be a hit. How do Apple keep pulling this stuff off?

your mileage may vary

Watched a very interesting documentary on SBS the other night: Car of the Future, where two charismatic brothers – one a host of a radio car show, explore future trends in car design in a lighthearted, but well informed way. It was certainly entertaining, but I want to share the two big points that came out of it.

1. Around 1% of the fuel we put in our car is actually used in moving the driver. What? 1%?? are you kidding? So while we’re howling about paying $1.75 per litre for petrol, the way we use it means that we are essentially burning $1.73 of it for nothing? Well, not quite – the waste is in moving the car – friction, heat, and of course, the engine itself cannot perfectly convert petrol to motion. All the same, it’s an incredibly sobering to realise just how far we’ve got to go with fuel efficiency in motoring.

2. We blew our last big chance to build more efficient cars. Yes, back in 1975 the world experienced its first major oil crisis. Legislation was introduced in the US to mandate minimum mileage efficiencies and between 1975 and 1982 the average mileage increased from 13mpg to 22mpg. During this period, the price of oil actually fell!

Unfortunately, instead of continuing with these gains, having achieved the required standards, future efficiency gains were used to increase speed and vehicle size. The average mileage has not increased since 1982, in fact, it’s gone slightly south, to about 20.8mpg, while fuel prices have steadily risen.

So there it was, as clear as day, the correlation between demand and price, and yet we still have brainless, populist fools like the RACV, and the opposition (my favourite targets), as well as many others, who think that cutting fuel taxes to provide a few weeks price relief is a good thing. How stupid and short-sighted can you get?

The lesson to be learned is clear, the only thing that is going to make drivers and manufacturers change their ways is to allow market forces to take their toll. Market forces that include the true cost of fossil fuels, and include a carbon tax. It’s going to hurt, but it must be done.

make your maps open maps

This week Google announced (yet) another new feature of it’s mapping toolset. For a little while now, we’ve been able to ‘submit’ alterations via the maps interface – moving things here and there – a quick look at Google Maps Recent Edits shows that it’s quite popular. The latest thing is Map Maker, which is a bit like My Maps, except your edits may eventually find their way into the public maps.

Nice idea, but if you have a close look, you don’t get a lot for your efforts. Pan around google maps and you’ll see the copyright message in the lower corner that attributes the data source of the various providers, but don’t expect to see your name there any time soon… no, if you submit data via mapmaker (assuming you are in one of the areas currently open), that’s the last you’ll see of that little piece of intellectual property. Furthermore, if your edits ever do make it to the public maps, they’ll be under the same restrictions as all the commercial data. Google might be touting this as some kind of community effort, but it aint.

Contrast their approach with that of Open Street Map: an active supportive community; great editing tools; open to anyone; your edits appear on the main map within a week; infinite detail; the list goes on. Sure OSM doesn’t yet have the detail of Google in all areas, but where the community is active and strong, the data is way better than Google’s.

Google’s wayward sense of direction.Just around the corner from my work is an example. The Elizabeth Street roundabout is one of the busiest intersections in Melbourne. It’s daunting enough for locals, but if you’re from out of town, it would help to have a good map. Superficially, OSM and Google are similar, but if you look closely you start to see the problems:

  • For a start, the Dental Hospital hasn’t been there for about 10 years. The building is derelict. OSM knows where it is now.
  • According to Google, it looks like Grattan street doesn’t make it all the way across Royal Parade, which Google thinks is the Hume Highway… hmm!
  • and what is it with the way all the service lanes join the roads as they approach the roundabout on Google? I can assure you – this is fantasy.
  • OSM aso seems to know what it’s doing with one way streets – something Google has real trouble with. Maybe they don’t know we drive on the left in Australia, but my colleague big ben pointed out the other day that following Google’s directions from one part of Grattan Street to another will get you into a lot of trouble!

Anyway, the point of this is not to bag Google maps – they are fantastic, they have popularised digital mapping and changed the way we get from one place to another… but, they are still a company and you we still rely on them to provide the service and the tools to go with it. OSM on the other hand is open source – the data is there for everyone to use – tools can be created, crafted, improved and distributed without messy licencing. Wikipedia was recently shown to be every bit as comprehensive and accurate as the venerable Encyclopaedia Britannica and so it will be with OSM. It will be the mapping tool by which all others are judged. So if you’re thinking of making maps – do it the open way!

watching the wheels of government turn…

The web keeps popping up interesting experiences all the time – today I had another.

I subscribe to Get Up!. They are an activist group. I have to admit, I don’t really know who is behind them, but they don’t seem to be directly affiliated with any mainstream political group. Get Up harness the power of the web to promote well thought out campaigns on a wide variety of issues… Cluster bombs to saying Sorry. The most recent one was Public Transport.

Get Up asked its 280,000 odd members to write a message to their local member of parliament, which they said would be duly delivered. It’s an issue close to my heart, so I wrote to Kelvin Thompson – I thought it was a good little letter. I hope he liked it.

Now sometime over the weekend I got a message from a friend of mine, (a far more politically motivated person than I), about the launch of OpenAustralia.org, a website that lets you track the performance of your local member of parliament via email alerts, and just generally simplifies access to the formidable amount of information passing through parliament. So, naturally, I sign up to receive alerts about Kelvin – he’s not a high profile pollie, so I’ve no idea how active he is in the house and whether he’s earning my vote. OA tells me that he got really busy around the end of May, but has been pretty quiet since, so I was confident I wasn’t going to be swamped by email alerts.

Imagine my surprise when this afternoon, I get an alert… Kelvin said something! So, I head off to the site to see what he’s banging on about and what do you know?

In the last couple of weeks GetUp! has engaged in a follow-up to that initiative, with an email campaign promoting the need for public transport infrastructure. I have received around 200 of these emails and I dare say other MPs would have received similar correspondence. The GetUp! members take the trouble to personalise their emails, which I think is a good thing.

I think he’s read my email! … I am mildly impressed to have seen the political wheels turn so quickly.

Oh, and by the way, subscribe to Get Up! they do good stuff!

petrol addicts, go cold turkey!

Does anyone else find the recent debate over petrol tax just a little bit pathetic? 4 cents, 5 cents, myopic politicians taking cheap shots, pretending they can do anything about fuel prices. It’s all such a load of crap.

Firstly, I’m no economist, but as I understand it, the price is high because of the old supply/demand equation. What’s dropping the price going to do? I’ll help: it’ll increase demand, raise the price and before a few weeks have gone by any, gains will have evaporated faster than if you put a match to it.

Obviously the only thing that is going to make any difference is a drop in demand. If you want to save 20% on your petrol bill, try catching the train or riding a bike one day a week.

It’s sunset on the day of the car. When I travel to work, I am just sickened and amazed at the number of cars with only one occupant – these will be the same people whinging about petrol prices – are they completely stupid? They are racing headlong to a future of congestion taxes and greenhouse taxes – five cents is going to look cheap when they start having to pay the real cost of their addiction.

I don’t think we’ve even begun to see the secondary effects of a fuel price crunch – farmers, miners, primary producers and manufacturers everywhere are already dropping out of business. We’re seeing protests across the world in rich and poor countries. What happens when our shops can’t get adequate stock of fresh fruit, fish, and milk? The writing has been on the wall since the first ‘oil shock’ in the ’70s, but little has been done to change course. If not this crunch, maybe the next one, but you know, it’s really going to hurt unless we start making other plans.

And in a perverse little postscript: Our local paper ran a front page story this week about a councilor calling for trams to be banned on Sydney Road… wait for it: because they cause congestion! Hang on a minute, last time I was on Sydney Road, there were about 300 cars for every tram. Wouldn’t that indicate it’s the cars causing the congestion? Bingo! Maths isn’t my strong suit, but I think I nailed that one.

Apple’s iTunes rip-off

I remember waiting with huge anticipation for Apple to launch iTunes in Australia – the rumours got thicker and faster until it finally arrived. The store finally launched with tracks selling at $1.69 each.

At the time, as I recall, the aussie dollar was about $us0.65¢ so we were effectively paying about $us1.10 while the US pricing was only $us0.99¢ – that seemed a little unfair at the time, but no-one seemed too fussed.

Roll forward to today: the aussie dollar is sitting on $us0.95¢, but tracks are still the same price, which means we’re actually paying a little over $us 1.60 per track! That’s quite a bit more than our US counterparts – certainly enough to make most CDs better value.

With the parlous state of the US economy and their sliding dollar, I’m sure we’re not the only market where iTunes is starting to look expensive.

A week in touch

I’ve had the pleasure of using an iPod Touch for the last week. As much as I like my music, I’ve never really felt the need to upgrade from my old ‘gumstick’ 1Gb shuffle, but we’ve got one at work with the intention mainly of testing podcasts and public facing services.

Yes, the multi touch is cool, the screen is brilliant, the wifi easy to use – all just so sweet. So, what can I say about my week that hasn’t already been said a million times in a million other reviews? I’ll try to stick to a couple of things that have impressed me.
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resilient

hatsNews reports tonight are describing the people of Burma as ‘resilient‘.

Certainly they are resilient. When we visited, we saw these people living in pretty ordinary circumstances – poverty, lack of basic services, poor to non-existent infrastucture, all against a constant undercurrent of oppression. Despite their obvious hardships, they were friendly and open, with a ‘can-do’ attitude and beautiful smiling faces.

They certainly don’t need this latest obstacle.

If you’re feeling a little compassionate, don’t be put off by the fact that Burma is run by a cadre of self serving military officials. I’m sure they’ll find a way to get their grubby hands on a portion of your money, but trust the aid agencies to do their best and get your money to the people who need it. Head over to the Red Cross Donations page and be generous.

the old sou’wester

Am I imagining things? Perhaps there’s someone out there that can help me with this.

Bureau of Meteorology weather radarAs a kid, (many years ago!) I remember all the bad weather came from the south west. Cold, rainy days, cold fronts, storms – you name it, they all came out of the south west… as I remember, anyway. These days, when rain approaches Melbourne it is just as often from the north west and seems to get scattered by the ranges on that side of the city. I also remember summer storms – cracking shows with thunder and lightning and winds so strong that they swept the rain in spirals down our driveway. Obviously, we are still in drought and weather patterns are pretty grim, but this is one trend I feel has happened over the last 10 years.

So, the question – has anyone else noticed the relative lack of the old sou’wester? and storms, weren’t they almost inevitable after a hot day in summer?

Of course, those days we never had the wonderful BOM radar and all I remember is wonky lines on the ABC news weather map. I’m intending to look back over what records I can glean from the extensive bureau archives, but I thought I’d just pop the question here too, in case others have noticed it.

a bullbar for my bicycle…

Dear reader: Take the first couple of paragraphs with a grain of salt as they are based on comments as reported in the Moreland Leader. Seems there is a possibility that this wasn’t exactly what was said. All the same, the stuff I said isn’t all suddenly wrong either, so I’ll leave it here.

Breathtaking arrogance and stupidity demonstrated this week on the old car vs. bike debate: this time, reportedly, from a cyclist.

some cyclists in morelandJoel Mayesat and Bill Bretherton of ‘Human Powered Cycles’ were apparently “appalled to discover” that Bicycle Victoria had sold advertising space to Subaru, who were in turn, getting into the spirit by offering bicycle related incentives to test drive and ultimately purchase a Subaru 4WD.
Continue reading “a bullbar for my bicycle…”