Monat: Februar 2012

Body monitoring – the IP cam by Withings

One of our devices is the IP cam inventedbay Withings as a baby monitor. It’s a nice device with features like night vision, temperature and humanity logging. It can alarm at accaustic or visionary interrupts (crying or moving, but I like the interrupt description).

 

One essential feature is missing, the use with other devices than iOS apple mobiles with the withings app.

http://www.withings.de/de/babyphone

Body monitoring

The medisana tragetscale was a new possible candidate for a bathroom scale. Now the withings or medisana scale will be the scale of chose. I‘ m not sure at the moment which one I prefere. The withing scale will be available in white an black. The medisana has some funny light features and look very spacy with that feature.

By the way editing text for the blog is some kind of pain in the a.. With the iPad.

Software Defined Radio

“ A number of definitions can be found to describe Software Defined Radio, also known as Software Radio or SDR. The Wireless Innovation Forum, working in collaboration with the Institute of Electrical and Electronic Engineers (IEEE) P1900.1 group, has worked to establish a definition of SDR that provides consistency and a clear overview of the technology and its associated benefits.

Simply put Software Defined Radio is defined as :
„Radio in which some or all of the physical layer functions are software defined“ *

A radio is any kind of device that wirelessly transmits or receives signals in the radio frequency (RF) part of the electromagnetic spectrum to facilitate the transfer of information. In today’s world, radios exist in a multitude of items such as cell phones, computers, car door openers, vehicles, and televisions.

Traditional hardware based radio devices limit cross-functionality and can only be modified through physical intervention. This results in higher production costs and minimal flexibility in supporting multiple waveform standards. By contrast, software defined radio technology provides an efficient and comparatively inexpensive solution to this problem, allowing multi-mode, multi-band and/or multi-functional wireless devices that can be enhanced using software upgrades.

SDR defines a collection of hardware and software technologies where some or all of the radio’s operating functions (also referred to as physical layer processing) are implemented through modifiable software or firmware operating on programmable processing technologies. These devices include field programmable gate arrays (FPGA), digital signal processors (DSP), general purpose processors (GPP), programmable System on Chip (SoC) or other application specific programmable processors. The use of these technologies allows new wireless features and capabilities to be added to existing radio systems without requiring new hardware.“

http://www.wirelessinnovation.org/Introduction_to_SDR