Virtual Software

Good day,

Long time no news on Gambari.
I’d like to have some feedback on a paper i’ve wrote few days ago about a Virtual Software concept.
http://www.z-way.org/technical/vsdb

I’m actualy looking for advice about language to use.
I need to be able to describe concepts that can be translated in code, math and graph. Also this language must be distributed from web so if those conversion could occur directly on web pages that should be awesome.

Thank’s to take time for that.

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#computer-vision, #concept, #open-source, #software, #virtual, #web

Summer in Japan

Its been a while since I’ve posted anything here…

Google buzz and reader are to way to share the news but i guess to create news it would not hurt to use a good old blog post.

I’ve been in Japan for about 5 months now. I’ve been studying Japanese in a community center near by. Its quite fun, I can read and write hiragana a little, でもまだじょうずじゃありません.

I’m enjoying been in Japan quite a bit. I’m staying kind of in the country side near Tokyo/Yokohama. There are many old houses and farms.

Its not uncommon to buy vegetables directly from small producers who leave them unattended with the price next to them. The climate here is tropical so its very hot and humid and it rains a lot.

Sometimes its so hot i have to take 3-4 showers a day. Thats one of the reasons I came up with the “idea” to collect rain water and use the sun to purify it (trough distillation) so i came up with a small prototype which i call the water panel 🙂 The cool thing about it is that it can keep the water evenly distributed even when it is tilted at an angle.

Japan is quite up there with  green energy appliances which they usually label ECO. I’ve uploaded couple of pictures of my prototype, a Solar water heater and a roof mounted Sollar PV pannels. I have not seen roof mounted Solar personal water purification system in Japan so far.

#concept, #energy, #energy-solar-green-science, #green-tech, #solar

Magnetic Clevis

Since 2 years, i’m playing around with natural permanent magnet. I’m really surprise that nobody is using this natural force as it should. There is a lot of new way to explore.

Here is a little concept of of magnetic articulation driven by 3 or 4 little electric engines.  The main goal is to let natural magnets hold the biggest part of the weight and use a very little energy to drive it.  It could be use as a stepper engine except that the angle could be setup very precisely. The strength of the joint could be modify without adding extra electric energy. Also the velocity factor could be very interesting. There is no mechanical contact between the 2 heaviest parts so no sound, no heat and no usury. Only the driven part: the electric motors, the driving screws and the spherical bearing will!

As i saw in many industrial manufacturer since few years, the electromagnetic bearing are now very in use. (ex: SKF)

Here is a very simple concept of natural magnet bearing:

Magnetic Bearing Basic

This is an aluminium shaft with box magnet all around at 45 degrees. On each sides, i put a ring magnet in the repulsive side.  Of course, it’s a schema, so i let the rings floating in space to keep the pictures readable. So more the ring are closer from each other, more there is pressure over the whole shaft.

After that, my question was how to made this turn.  As i was studying chopper’s swashplate few years ago, i fund a way to adapt this mechanical method to my concept. Simply by creating a disharmony between the rotor’s box magnets strength like this:

So by tilting a little the rings in symmetry over it, this will give a direction to the shaft. Now the question is how to make the rings turn in symmetry without using a lot of energy? For this i setup a set of 3 driving screws to hold the rings magnet with spherical bearing. The 2 shaft’s strokes are set in an opposite stepping, that way, when i turn the shaft there are getting closer each other, or farest in opposite rotation.

Magnetic Clevis from Lempereur Bertrand on Vimeo.

Here a little schema of the Final concept:

This is with 3 shaft but it could work also with 4.

If you want to experiment some stuff with magnets:

http://www.supermagnete.fr/eng/

http://www.hkcm.de/

For industrial stuff:

http://shop.hpceurope.com/an/home_catalogue.asp

Constant Velocity Joint

#concept, #robotics

Solar in Las Vegas

I was in Las Vegas for a while and decided to upload some pictures of my home renovation solar experiments. This is a 500 feet black hose that is connected to an old water heater. The hot water should circulate using D5 Solar circulation pump. My goal eventually is to concentrate solar energy with computer controlled mirrors or by pointing an old C-Band satellite towards the sun.

It would be cool if one can find funding for organizing green development camps. For example a group of enthusiasts can get together once a year and dedicate 7 days to get their ideas into a working prototype. A demo session at the end should show the final  result. The funding is necessary for materials, travel and accommodation. Videos and pictures can be published so that the joy is shared 🙂

#concept, #energy, #green-tech, #physics, #power

NLP and Ontologies

For a while now I’ve been thinking about using knowledge representation – Ontologies as a base for creating a modular Natural Language Processing system focused on extracting structured data from unstructured. For example we can create/use Ontologies (models) that describe “simple” concepts like: Address, Time, Task, Expense, Transaction etc… and use them to “match” information from a text stream. The reason i’m writing this is because i think that there is a common ground for collaboration… I know Stefan is interested in RDF/OWL,  the company that Neven is involved is in a very near domain and finally i was playing with Google Wave which i think is a good platform for creating intelligent bots that will be very easy to distribute if they turn out to be useful 🙂

Here are some references:
http://wordnet.princeton.edu/
http://protege.stanford.edu/
http://jena.sourceforge.net/
http://www.openrdf.org/
http://code.google.com/apis/wave/guide.html

#concept, #google, #machine-translation, #nlp, #rdf, #robotics, #wave

The Barrelfish OS

Here is an interesting open source project built from scratch in a collaboration between ETH Zurich in Switzerland and Microsoft Research Cambridge in the UK – a scalable new OS architecture for multi-core systems

http://www.barrelfish.org/

It can be downloaded from here:

first release snapshot

#concept, #open-source

Power Pebble – Intelligent, Modular Mobile Powering Source

Lately I have been thinking of methods of intelligently power up mobile devices through additional mobile power sources by using all currently available technologies and design solutions on the market. With wireless charging finally becoming a mass market reality through WildCharge, I am both excited and in the same time disappointed how little of the potential is actually covered by WildCharge. I decided to write down a quick list of features of a prototype product I’ve come up as the PowerPebble

  • Power Pebble is a modular mobile power source. It uses a LEGO brick design where each Pebble starter kit contains one middle rectangular block, called Power Block, with charging magnets on both it’s long sides, interconnecting plugs on it’s internal long sides, and tiny LED indicators on its shorter sides. Each Power Block contains multi-cell battery unit. The user can connect unlimited number of Power Blocks together as LEGO bricks using the interconnecting plugs. Two “caps” close the Power Block from both sides providing sleek rounded design. Each “cap” is a module with specific internal functionality, powered by the Power Block they are connected to. There can be numerous caps, with a limit of 2 caps used at a time.
  • Power Pebble is meant as a universal kit for building both mobile and desktop charging stands. One or two Power Blocks with Caps can be put in a laptop or messenger bag next to a device with WildCharge-compatible device and charge them while being carried in a bag. Multiple Power Blocks can align together to create travel-minded charging mega-device as a charging stand.
  • Feature-wise, the powered caps that complete the Power Pebble design feature modern mobile technologies that allow the user to assign up to two features (or packs of features) to the device from a list of multiple available features that are gradually expanded with introduction of new caps or upgrades of existing caps. Each cap itself is a mini-device with a programmable firmware. Each Alarm Cap offers a MiniUSB plug for cable charging off the grid, so the device can be charged from either side. The following cap feature packs I’ve come up so far:
  • Alarm cap. The default cap contains a clock with LED screen and alarm functionality and a buzzer. It can buzz user-defined alarms, create charge alarms based on Power Blocks remaining capacity, turn on or off charging alarms depending whether the Power Blocks are below or above certain capacity (do not ring in 21:00 for charging if Charging > 60%). Snap-out Wall Charge allows Pebble to be charged from a wall charger. The pebble will hang vertically while the charger is stuck in the grid horizontally.
  • Connectivity Cap. Based on an ARM8 processor, this cap is a Android-OS-based screenless mobile device with Bluetooth, WiFi b/g and 3G functionality. GPS is available. Android Cap runs a WiFi server, optional 3G-to-WiFi MiFi and a Web server allowing other screen-based devices to connect to it and configure it. The following software-based tasks are pre-packaged.

** Twitter, Facebook Publish or Facebook Mail (when API available) self. GoogleTalk/XMPP Push. RSS hosted locally or proxied via online service (FeedBurner with PubSubhubbub support). Email. Create alarms in Google Calendar for charging via iCal Calendar.
** Messaging can tell devices that PowerPebble has capacity to serve them thus devices should specifically ask the user to use the Pebble. Devices with GPS can compare their own GPS data with PowerPebble GPS data and if close, could tell the user that the closest PowerPebble is in close distance. Devices can subscribe to multiple PowerPebble feeds/accounts/etc. and triangulate closest Pebble.
** Google Latitude, Fire Eagle GPS support. GPS Log support for cross-tagging media from cameras, online travel tagging services. GPS-defined Locales that trigger on or off Alarm Cap functions. For example, be alarmed of low capacity only when you return home.
** Voice Alarms via Bluetooth-connected headset. Support for headsets capable of connecting with multiple devices.

  • PowerBag is a line of laptop and messenger bags that contain integrated wireless charger in its design. One of its compartments is meant for placing 4-cell or 6-cell PowerPebble. The whole interior of a PowerBag is lined up with multiple magnets (both compartment sides and compartment bittom) allowing any device placed inside to snap attached and charged if needed by just being carried in a PowerBag. PowerBag has handy MiniUSB connector that allows to “plug” the PowerBag to the grid and thus charge both the residing PowerPebble but also any device inside the bag. Power Bag also has wireless charger magnets on it’s exterior bottom, for placing over PowerPebble stands instead of wired charging via miniUSB
  • Solar Carrying Bag. Carrying Bag for PowerPebble of up to 8 Power Blocks, using velcro connections to stay together as a bag, but can be expanded to a canvas 32 Copper Indium Gallium diSelenide solar panels, with a miniUSB charger for connecting to PowerPebble via any of its Caps. PowerBog can have models with solar panels attached to it.

#concept, #device, #mobile, #power, #product