Artículo de DEXMA en la revista Informacions de la UPC

October 22nd, 2008 by jpinyol No comments »

Hoy ha salido la revista Informacions 212 de la UPC, en la que aparece un artículo de DEXMA en la página 7. Podéis descargarla en PDF aquí.

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Nueva presentación corporativa

October 6th, 2008 by jpinyol No comments »

Nuestra nueva presentación corporativa:

DEXMA @ ‘XIX Fòrum de les Telecomunicacions i l’Electrònica’

September 29th, 2008 by jpinyol No comments »

Este miércoles DEXMA participará en el ‘XIX Fòrum de les Telecomunicaciones i l’Electrònica’, que tendrá lugar en el Campus Nord de la UPC.

Buscamos Ingenieros en Telecomunicaciones o Informática interesados en Redes Inalámbricas de Sensores (802.15.4/Zigbee/6lowpan) y/o Sistemas de Localización en Tiempo Real (Ultra-wideband).

En DEXMA estamos trabajando con redes mesh que pueden llegar a contener cientos de nodos inalámbricos -del tamaño de una moneda- capaces de tomar todo tipo de datos del entorno, con una autonomía energética de varios meses. Por otro lado, en localización, estamos trackeando objetos/personas en tiempo real y con precisiones de hasta 30 centímetros, pudiendo emular su movimiento en 3D.

A la vez, buscamos perfiles con carácter emprendedor que tengan nuevas ideas de negocio con las tecnologías que trabaja DEXMA.

te esperamos!

DEXMA

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¿Qué es el Fòrum Telecos?

Fòrum Telecos es un evento organizado por los estudiantes de l’Escola Tècnica Superior de Telecomunicacions de Barcelona de la UPC, al que acuden las más prestigiosas empresas y instituciones nacionales e Internacionales, en busca del talento que ofrecen los alumnos de telecomunicaciones. Durante dos semanas estas empresas tienen la oportunidad de contactar con titulados, futuros titulados, estudiantes y todo el colectivo que rodea la escuela de Telecomunicaciones.

Lista de participantes

When energy matters

July 8th, 2008 by xorduna No comments »

When a wireless sensor node has to run with batteries for months it is really important to know which is the average power consumption. Standard AA batteries have about 2000 mAh (they can supply 1 mA for 2000 hours), msp430 (which maybe is the 16 bit microcontroller with lower power consumption) can draw from 0,3 uA in sleep mode to 4 mA in active mode, a radio chip like CC2420 draws about 20 mA in Transmition or Reception, reading from any kind of sensors could up to 6 mA. The worst case would be a power consumption of 30 mA, that will draw the entire battery in about 72 hours. That’s not good. It is mandatory to have an inteligent operating system adaptation that really manages power consumption and starts and stops devices only when needed. But is also really important, when prototyping a wireless sensing application to know exactly how much power will it draw. This is why at dexma we have developped DXNRG, used with dexCell framework, will help integrators to fine tune the application and optimize battery life. DXNRG is fully integrated in dexCell Stack, it takes care of how much time each device is used, information can be sent over the network or over the serial port. Using dexCell Server integration, it is really easy to know which is the average power comsumption of your applications, and predict in a more effective way batteries life.

Internet in your pocket

February 27th, 2008 by xorduna No comments »

Yesterday I’ve been invited to a debate organized by the Fundació UPC about “internet in your pocket”. During the debate, Albert Calvet from CV&A Consulting talked about e-learning and its applications to cellphones. Carles Grau from Microsoft talked about the upcoming technology that Microsoft is preparing for new mobile devices, he talked about his Media Center integrated in some versions of Windows Vista, but I became surprised because he did’t talked about Windows Mobile Edition, that has become a winner between Operative Systems for mobile devices, maybe because the concept “PDA” is almost dead? Josep Fígols from Sun was really direct and concise; he said that Java is more alive than ever (making special attention to JME), he introduced the SunSPOT and said that any mobile device oriented applications needs a solid and strong backend (and of course, Java is the right technology to implement it). He also made a reference to the acquisition of MySQL by Sun (while Carles Grau noticed in an interview that Opensource has no sustainable Business Model behind). Xavier Kirchner from Telefonica I+D talked about more generalistic data and showed us why existing internet access from cellphones became a complete failure. I really liked his thought that we must look at cellphones as an interface to interact with social networking applications. I made a fast reference to most new devices (Iphone, Blackberry and Asus Eee PC) that make possible to take advantage from ubiquitous connectivity, but also to new devices that forge the anacronysm of typical input/output interfaces like keyboard/screen. Finally I talked about new network providers like Fon or future MVNO’s. A final reference was to Android and RSS as a upcoming platforms and standards needed to speed-up new applications development.

During the rest of the debate, we discussed about Opensource, about the inexistent initiative from the Y generation (while I was criticizing the University for not stimulating students creativity). Also there was a reference about the need of add semantic information to this huge amount of data that Internet is becoming. It was a really interesting debate that could have been running for hours because of topic’s interest and possibilities. Here you have my slides. I would like also to thank to the Fundació UPC the invite to a high level debate.