Brian Zhang Larsen’s Blog

Jun 20
Omg, there is data everywhere!
  icon1 Brian Zhang Larsen | icon2 RFID, supply chains, tracking, ubiquitous computing | icon4 06 20th, 2007| icon3No Comments »

The Global Data Synchronization Network (GDSN) initiative is in my opinion the most (potential) exciting new thing in the IT world at the moment. And not just in the IT world, but it will have a major impact on close to every aspect of trading, which again means close to every aspect of … well everything. Since Søren and I finished our thesis last summer, I have been keeping an eye on the development in this area, and it seems like this great idea is in growth.

It is essentially about making master and transactional data, about any item or service, accessible to all partners in a supply chain, potentially including the consumers. By master data, is meant data that is “relatively consistent across time [...]”, like production date, expiration data and other Meta data. Transactional data is data about when and where. Like when did the wholesaler receive, it and when did it ship from here.

Off course transactional data, and production dates already exists, and is often shared between trading partners, but this initiative is not just about sharing of information. It is a globally defined standard, across businesses, 100% compliant with the identification standards defines by GS1 (EAN International and the Uniform Code Council). The goal is to make this technology easy accessible and understandable, so essentially everyone will adopt and take part in this network.

Ok, all this could sound a little sleep provoking, but it really is far from. Think off the consequences such an enormously wide collaboration could have on close to all businesses, and for curious minds. It would (help) ensure correct data through all the supply chain, it could provide leapfrogging supply chain visibility throughout virtually all its steps, and for tracking fetishists like me it would provide me the ability to see where this laptop I am writing on right now, has been,…when. Other more classical examples could be to see which cow the milks come from.

All this would probably require RFID as a prerequisite, as this would mean more precise real-time data. At least the latter examples would require unique identification codes. In the future a lot of the administrative task could be taking care of by ubiquitous computing in correspondence with the GDSN and RFID. Alex Renz from Microsoft gave us a very good example of this, at a “brain dump” session, to help with our thesis.

Imagine an empty supermarket shelf, with an RFID scanner. The shelf reads no more products, so a computer checks the stock, with the aim of alerting the personnel to fill the shelf up (we are not at a point where robots should do this ..yet, although something like this already happens at pharmacists here in Denmark.). Anyway, the computer sees that there is no more products in stock, and alerts the supplier and places an order. The supplier then checks it own stock, and if there is any, then the order could be processed as soon as possible, if not another order could be sent to their supplier, and so on. The even better scenario could be, for the supplier to first check if there already is any delivery of this product going on. If so, then prioritize the customers, and maybe so, a part of the order in delivery could be shipped to our supermarket, to decrease the out-of-stock time. The (still human) driver will then be alerted that he should take a turn to drop by our supermarket on the way. All this with only very little human intervention. The humans could instead spend their time drinking coffee and picking their noses.

Ahh, I would like to see the alternative ending to Battle start Galactica, where also Galactica is hit by a stray missile, and the rest of the episodes show the cylons building an optimal society.

May 19
Life logging
  icon1 Brian Zhang Larsen | icon2 Geotag, GPS, logging, tracking, Travel | icon4 05 19th, 2007| icon3No Comments »

Geotagging, geocaching, plot your runs, trips and so forth. There are many new coming hobbies and tendencies provided by new technologies such as GPS devices, interactive online maps and various web apps. What about just plotting your entire life?

I wanted a more efficient way to geotag photos, and a lot of people are doing it by comparing a GPS log with the photos EXIF timestamp, and adding the GPS data as EXIF data to the photos. Often by interpolating between the GPS points, to get a closer match.

But the log itself could become a little amusing, especially on vacations, to see where you actually have been. Not to mention those Sundays, where you wake up and think “hmm… what exactly happened yesterday”. Upload the log to your nifty little web app, and there you go. In 15 years, it could be possible to look back and see where you were on the19th of April 2008, or any date and time for that matter. You can then calculate stuff like how many meters you moved overall for 2008, or what was your average velocity in 2011, compared with the year before. If I ever become so manically obsessed with tracking my own whereabouts at any time (quite likely), I would prefer to keep all this data somewhat private though. That being said, I am really not too concerned about privacy in general.

Anyway, for my new toy, I just ordered this:
globalsat DG-100  GPS Data Logger
I wanted a small lightweight logger at first, to see if this would catch my attention. So by studying the flickr group “GeoTagging Flickr”, to look for advice i found the DG-100 GPS Data Logger to be an interesting choice. This gps receiver should be more precise than the Sony GPS-CS1, and have a newer chip set :O! I am a little nervous about the battery time though, but for a first device whatever must be adequate.

Logging and uploading daily whereabouts will only be step one. When GPS phone prices drops, it could be tempting to write a little java or whatever app, that sends the GPS data directly to a server. In that way, it would be possible to obtain real time life logging, which obviously has tons of opportunities (?!).

In a few years, I image myself with a large hat, which transmits my location and my viewpoint video/audio feed to my server, so I always have an exact multi media log of my life… Well, maybe not.

Other than private amusement, there must be great marketing potentials if GPS logs where publicly obtainable. Even for semi or fully anonymous data. It would be possible to use the data to define marketing segments, and target ads about local shopping or dining specifically to people who is likely to get near these areas. By generating heat maps, it could be possible to forecast trends to where the new hip spots are occurring. It could also be used to optimize transportation, city planning, real estate location relevance and much more.

More on this topic when I actually make an implementation and try it out.

Apr 19
Big brother google
  icon1 Brian Zhang Larsen | icon2 google, tracking, web | icon4 04 19th, 2007| icon3No Comments »

I just had a rather scaring experience with the big all Seeing Eye of Google. The Google search history has existed for a while, and probably much longer as a hidden amusement tool for Google employees. This tool must really say a lot about a person. In fact I think this tool, can easily say more about a person than the content of a mail box, or a bank transaction list. Even more than a IRL trashcan.

With this tool, it makes it possible to almost reexperince nostalgic moments, when you desperately tried to find some information for a blog post, or for some damn compiler problem on your fresh linux install. Somehow my data is only available for a little more than a year, and as I relive my search history I see a whole of master thesis relevant searches. These searches are often interuptet by some definitely NOT thesis relevant searches like “chuck norris” or the more dramatic “how to remove water from the ear”. Oh yes, I remember that trauma. The tool also compiles lists of top sites, queries and clicks. I an walking the self exposing line and reveals my top sites here:

Top sites
1. en.wikipedia.org
2. www.google.com
3. www.flickr.com
4. dev.mysql.com
5. www.microsoft.com
6. www.imdb.com
7. www.php.net
8. www.experts-exchange.com
9. www.w3schools.com
10. rpmfind.net

I think it is an impression on the top sites visited from Google, or sites that appeared as top in my searches, and not my actual visits, even though it might be very similar. Even though the placement of google itself seems weird. Actual visits can only be tracked by Google, if I use the Google toolbar, which I don’t, or by Google analytics. But the latter might conflict with certain laws.