Débuter en domotique Situation immobilière, solutions techniques adaptées à vos besoins, budget et compétences utilisateurs sont les éléments qui détermineront les orientations de votre projet domotiques. Il n’existe pas de solution idéale car chaque besoin sera spécifique et différent. Cependant, je vous propose avec cet article de passer quelques obstacles avec un peu de recul sur votre besoin en vous posant quelques questions. le confort (automatisation, personnalisation suivant votre environnement, et intelligence de votre système) ;les économies (connaitre vos consommations pour appliquer un modèle économique adapté) ;la sécurité (alarme incendie, alarme inondation, alarme intrusion, surveillance vidéo …) ;l’aide à l’autonomie (le contrôle distant de votre habitat depuis un terminal informatique). Tout au long de cet article, j’utiliserai trois expressions permettant de définir les trois grandes classes technologiques de la domotique actuelle. 1.1 – Locataire ou propriétaire 1.2 – Type d’habitation
Power Supply Design considerations and solutions for powering your projects This page is new November 1st 2010. As it grows, the way the relevant material is split into categories will have consequences for years to come, and will ensure... or prevent... the page's success. Care, please? Electronics 101 Voltage: What your voltmeter reads. For the precise reader: A "battery" may be one or more cells. The cells in a battery can be connected in series and/or parallel. Connecting cells together in a battery is not without problems. (NEEDED HERE: Discussion of general principles of charging/ discharge, etc.... but remember that there are sections below for things specific to different storage options) (NEEDED HERE: Discussion of calculating the current a particular system will draw, and how to minimize that demand) (NEEDED HERE: Discussion of issues surrounding boosting a batteries capacity by adding cells in parallel, and boosting voltage by adding cells in series) Catch your rabbit... Solar N.B.
Networking by numbers RSA Connected Communities has started a new project with Nathan of the MIT Center for Civic Media to create a new, cost-effective way to measure the social impact of public services and civic interventions and to allow people to see their own personal networks. We’re designing a mobile and tablet app for recording real-life social networks: your friends, families and contacts. The open source software we build will also be useful to journalists, ethnographers and anyone trying to make sense of rapidly changing social phenomena. What is data? A community researcher goes door to door. Back at the RSA HQ a data entry scribe enters these reams upon reams of human data. We have found that allowing people to see their own networks and understand them allows them to feel they can change them. And so what? We already know that people with more diverse networks are healthier and happier. You can paint me your social picture and I can ask “Does this look right, does this look like you?” Comments
Freetronics Big Data is Neutral: A Tool for Both Good and Evil | Think Tank What's the Big Idea? Big Data is watching you. And it's big business. Credit card companies, for instance, are selling the data about what you're consuming. Smolan argues that while data creators need control over how it is used, Big Data is not inherently evil. The picture of Big Data that Smolan hopes to convey in his book is one that is "thought-provoking, disturbing and exciting." Watch here: What's the Significance? As Smolan points out, in a sense we actually do have the ability to "listen to this global heartbeat and actually sense this pattern of behavior across the planet in the course of a day." In the slideshow below, you will get a taste of how data is being used as "the most powerful tool set the human race has ever had to address the widespread challenges facing our species and our planet," as Smolan puts it. Photo credits Infographics: © Nigel Holmes 2012 / from The Human Face of Big Data 23 & Me © Douglas Kirkland 2012 / from The Human Face of Big Data Model Released Wikileaks
Learning interprocess communication with the ACE Framework - Aurora For most programmers, interprocess communication (IPC) is synonymous with using the Socket API. The Socket API was originally developed for the UNIX® platform to provide an application-level interface on top of the TCP/IP protocol. It supports a plethora of functions, some of which are shown in Table 1. Table 1. There are several problems with using the native Socket API. The Adaptive Communication Environment (ACE) Framework defines a set of wrapper façades that address these problems. ACE classes for network programming Table 2 shows some of the basic classes that ACE defines for TCP/IP connectivity. Table 2. For User Datagram Protocol (UDP) communication, the ACE_SOCK_Dgram class and its variants are used. Back to top Creating a client-side connection Let's start by dissecting the code in Listing 1. Listing 1. The client needs two pieces of information: the host name and the port number to which the connection will be established. ACE_INET_Addr server ("tintin.cstg.in:458:) or: Listing 2.
Jaron Lanier: Why Facebook Isn't Free | Humanizing Technology What’s the Big Idea? Facebook shares start trading today, at a price that will value the company at close to $100 billion, or roughly the 2011 GDP of Sudan. The difference between this and other comparably enormous initial public offerings is that Facebook's product, or service, is free. Its business model is based on the value to advertisers of the rich data its users provide by sharing their changing interests and relationship networks in real time. The "big data" that Facebook and other networks gather is especially valuable because of its level of detail. Jaron Lanier, a virtual reality pioneer (widely credited with inventing the term 'virtual reality'), musician, author of You Are Not A Gadget, and vocal opponent of what he sees as the widespread social conformity and economic unsustainability of Web 2.0, sees a hidden cost in the "free" services of the social web. Video: Jaron Lanier wants to see new technologies creating jobs and wealth, rather than undermining them.
Qt Developer Network - Aurora Letting Grow UPDATE: #LettingGrow is now over (explanation here) Thanks for the donations! TL;DR version: I’m raising money for cancer research in 2013. I’ve shaved my head and beard and won’t be cutting either until 2014. You can donate here: justgiving.com/letting-grow (I’m aiming to raise £7,866 – or one pound for every Twitter follower I had on 01/01/2013!) We’ve had better Christmases. The week before the big day our one year-old daughter tripped, fell and gashed her head. Then, on Christmas Eve she vomited. When you’re ill with something like a vomiting bug it’s comforting to know that in a few days you’ll be back to normal. Let’s beat cancer in our lifetime. Usually I trim my hair and beard about once a week. Every time I write a blog post I’ll update the photograph of myself here as well as my avatar on Twitter. So, if you or someone you know has been affected by cancer, please do what you can: >>> <<<
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