Sensor Networks with Java (Part I) by Enzo

 

clip_image002End of last year I’ve started to build a little Sensor Network that I’ve placed in my house. I never thought that many people are interested in that but I was wrong, nearly every time I did a presentation about that topic many people asked me for a blog post about the project…and here it is 🙂
First of all this is not really about a Smart Home or something similar, this is simply a project to monitor data (temperature in my case). The original idea was monitoring multiple cold stores which seems to be something that is really useful 🙂
But because I didn’t had the cold stores I’ve decided to measure the temperature in nearly every room of our house.
The things I was interested in have been the behavior of the room temperature compared to the temperature outside. Does the temperature in the rooms follow the temperature outside of the house and how fast does it follow. To be able to compare those values I had to measure the conditions outside and in inside of the house.
Well measuring is one thing but you also have to analyze the data right? This means I needed to store the data somewhere and also needed to visualize the data somehow. Because I’m working from home I don’t have a big server room where I can put a computer that acts as a server so one other requirement was to use as many embedded devices as possible in the whole setup (means for communication, storage, etc.).
Wife factor
One very important (if not most important) factor in the whole project was what I call the "Wife factor". When I’ve started with the project I’ve used hardware like Raspberry Pi, BeagleBoneBlack and Arduino Yun to measure the temperature in different rooms in our house. It worked very nice BUT most of these devices have some kind of status led or I/O led which is blinking all the time. In addition all of those devices needed a power supply which means you have to place them close to a power plug. When my wife saw all these lights blinking and wires lying around she was not very amused.
I figured out that as long as she does not see the so called Sensor Nodes everything is fine.
Size matters
That said one thing was pretty clear, the Sensor Nodes have to be small and they should run on batteries…for months!!! I’ve tried different hardware like Raspberry Pi, Arduino Yun, Arduino + XBee but all of these approaches did not really work out well.
The biggest problem was the need for a power supply which limited the location I could place the Sensor Nodes. In the end I’ve took a closer look to the XBee itself which looks like follows… Read the complete article here.

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Harness the Power of the Internet of Things Seminar on 6th November London UK

 

By the Year 2020, there will be 50,000,000,000 connected devices creating and sharing 40,000,000,000,000 GB worth of data across the Internet of Things.

The game-changing potential of the IoT is hard to ignore. As the Internet of Things (IoT) connects increasing numbers of physical objects, which can both sense and react to the external environment, we ask how this will affect your industry.

When objects can sense and communicate, it changes how and when decisions are made and who makes them. During this half-day seminar on the IoT will explore the current state and future potential of the IoT, with speakers from research and industry who have delivered effective solutions into homes and the workplace.

It is free because we want you to share your experience; to learn about the challenges you face; and discuss how the IoT may help solve them. The event is open to those with a good understanding of their industry and a brief to innovate, is in round-table format with discussion on the issues after each presentation and live demo.

Who’s going to be there?

You and like-minded individuals from across industry seeking to share their knowledge, ideas and potential use cases.

For details please visit the registration page here

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IoT Summit Dusseldorf 2014 October 22nd 2014

The Interneimaget of Things Will Change Your Business: What’s Your Plan?

The Internet of Things (IoT) represents the convergence of mobile, cloud, big data, and analytics. To leverage the IoT and reinvent themselves, businesses have to grapple with the complexities of managing big data, multiple devices, platforms, and connections. Connected devices that form the genesis of the IoT are getting smarter. They are evolving our physical world into a new kind of interconnected information system, driving a new wave of data, and creating unprecedented business value by driving new revenue services for those who embrace the opportunity.
The IoT is uniquely transformative and has the potential to reinvent everything from supply chains to the customer experience. It will help companies apply data-driven insights and use machine-to-machine technology to diagnose and solve problems—closer to the edge device and without human intervention. The question is how do you quickly pinpoint the innovations and opportunities that will help your company use IoT data to reinvent your business for the digital age?
Session Highlights:

  • The IoT revolution: productive or disruptive?
  • IoT at work: perspectives on driving success
  • Oracle’s vision for a secure IoT from the edge to the enterprise: insights into a holistic solution

Who Should Attend:

  • CEOs/CIOs/CTOs of organizations planning or delivering IoT and M2M strategies or initiatives
  • EVPs/SVPs/VPs heading IoT and M2M groups within organizations or who are in charge of large-scale projects requiring intelligent devices, data collection, management, and analysis, and the storage and extraction of business intelligence data

Check-in starts @ 08:30 CET
Lunch 12:00 – 13:30 CET

For details please visit our registration page here.

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