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HW R&D, medical devices

 

Rookie
HW/SW R&D Engineer
Rookie
Good morning from San Jose, CA
Rookie

Excellent class again

Rookie

Thanks Fanny; excellent presentation. Missed two days back

Rookie

Firmware Engineer in Medical Devices using wireless comms to sensors with 3G data backend

Rookie

Thanks, good session

Rookie

Thank you once again.

 

Rookie

later

Good lecture!

Rookie

Thank you Fanny and Alex

Rookie

thank you all for joining and hope to see everyone back tomorrow

Blogger

Thank you for the presentation and answers

Rookie

we will look at some smaller anechoic chambers for higher frequency measurements tomorrow

Blogger

there is gradient abxorber that's thinner and works well

Blogger

for higher frequencies, such as 900 MHz and higher you may not need cones

Blogger

yes - the cones are made of absorptive foam that kills reflections

Blogger

The cones in the testing chamber are for killing reflexions?

Rookie

tomorrow we will look at controlled environment test methods

Blogger

Typically trying to measure over the air in the open air environment is difficult because there are many sources of signals and interference

Blogger

another way may be to look with a spectrum analyzer and see if the spectrum looks like Wi-Fi or frequency hopping BT

 

Blogger

to determine the wireless sytem used, you may try a wireless monitor (sniffer) or look inside at the chipsets used.

Blogger

Thanks for your time Fanny

Rookie

How can we determine what type of wireless system is used in a home appliance (ex. heating sensor communicating wirelessly with a heating device)

Rookie

Thanks for the chipset comments!

Rookie

Figuring out signal loss vs. terain, you may look into ray-tracing simulation packages.

Blogger

We had good luck with TI as a chipset vendor with good support. Silicon Labs is also good.  When it comes to Wi-Fi, Ubiquity is a good vendor, but may be hard to get their attention for low volumes

Blogger

thank you fanny very informative

Rookie

Thank u all very much. It feels good to be part of this :)

Rookie

For ad-hoc networks with mobile nodes - yes - you can lose coverage, so it's important for the network to be able to 'self-heal' and find alternate routs.

Blogger

Tyhank you very much. Good presentation.

Rookie

Good afternon to every one

New design to transmit RS232 data to multiple slave and master nodes.  Your overview has been moxt helpful. 

Thanks

Rookie

Good afternoon, everyone

Rookie

Fanny, thank you for today's presentation, very informative.

Rookie

 email psalazar@globalmed.com

 

Rookie

@Pedro Salazar, North Scottsdale by Princess Dr.

Rookie

As Fanny said, go the module route, if low volume. I've been in Enterprise 100k-1M/year radio, and support from all of the "big three" is rough, some off-load support for say $40k & ca. $200/hr. thru third parties.

Rookie

Question - In an Ad-Hoc network structure, does the network have potential to loose coverage areas because of individuals moving locations?

Rookie

Maybe some mention of chipset focus on consumer wireless (i.e., range vs. throught, and scalingof users/clients) vs. Enterprise/Industrial? Perfect business sense, but essential to be aware of this industry wide dichotomy.

Rookie

Chipsets: are there any reccomendatins for vendors that are easy to work with with low volumes. (My experience is that Broadcom is VERY difficult)

Rookie

@Pedro Salazar, Yes in Scottsdale

Rookie

Lots of general test equipment at work

Rookie

No RF test test equipment

Rookie

Tektronix MDO4104-6 Mixed Domain Oscilloscope  (1 GHz analog scope & 6 GHz spectrum analyzer)

for which frequency did you calculate the budget?

 

Rookie

Test essentials:

power meters (peak sensor, given complex modulations), one-box tester (combined VSA & VSG, aka LitePoint, Agilent or R & S), VNA (for all detailed RF bard work), Spectrum analyzer, with freq. at least 3x radio band of operation (TX harmonics, spurs, etc.), wideband horn antenna & pre-amp.

Shield/screen rooms/boxes for most RX testing

Rookie

are there any good free resources for figuring out signal loss based on terrain considerations??

 

Rookie

No ownership of RF measuring tools

Rookie

I have Spectrum Analyzer.

Rookie

Personally I've got Spectrum Analyzer, Signal Generators, Measuring Receiver (High end sommunications test set), Network Analyzer.

Work only has a Spectrum Analyzer

Rookie

Spec an and packet sniffer

Rookie

spectrum analyzer and RF generator (agilent)

 

Rookie

not much at the moment

 

Rookie

Don't have test equipment.

Rookie

Essentially "system integration" of radio modules- naive to expect "turn-key anything at 5 GHz ;-) FEM, LNA, switchs, filters & diplexers used to leverage reference design of chipset vendors. Modules lag chipsets by 1-2 years. Certain chipset vendors, i.,e Atheros, put the 5 GHz outside ther chipset/module, so somewhat forced to "roll your own." Difficult to get support form chipset vendors (understandably) if volumes are below ca. 1M/month. Antenna integration/matching, and conducted vs, radiated (OTA) RF performance are constant issues. Also, regulatory compliance is expensive & time-consuming, esp. if lots of countries involved, & 5 GHz much more "scattered" than 2.4 GHz.

Rookie

I´m taking this course just to understand the basics of wireless. My plan is to use OTS products

Rookie

looking at adding connectivity to devices for an existing std netrwork

Rookie

Mostly user, no development for wireless

Rookie

Embedded firmware on energy harvesting low power RF (EnOcean Alliance)

Partial turn key with a desire to possibly use alternatives to lower cost.

Rookie

Due to (1) price and (2) extreme power sensitivity and (3) size constraints, I am looking at the chipset route.

Rookie

No Wireless at this time.

Rookie

Very much standards / architecture oriented (TVWS needs standardization to achieve economies of scale) but early in the technology cycle so also lots of tweaking under the covers

 

Rookie

using BLE now, change to proprietary

Rookie

Combination of both.  Depends on where we are.

Rookie

I would be trying to use a Turn-Key setup rather than designing my own.

Rookie

Trying to use an establish solution and trying to understand its operation.

Rookie

802.14 mesh network for wireless communication with remote sensors

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probably will be designing our own

Rookie

we designed a protocol for MICS

Rookie

I am doing a propietary implementation

Rookie

I´ve used OSC over WiFi and I´m planning to use bluetooth to connect Android with microcontrollers

Rookie

HW RF design: 802.11 abgn & BT in a VoWLAN radio & cutom, small, embedded antenna design  for a hand's-free, speech recognition "communications badge" used in health-care, hospitality and oil/gas/mining Enterprise verticals

Rookie

CAN and Iso-CAN Transceiver.

Rookie

No wireless project right now. Gathering knowledge.

Rookie

embedded firmware.  Nothing wireless yet

LMS - Electrical Engineer, short range, high noise - little experience

 

Rookie

hardware and software engineers for medical device

 

Rookie

Sales of healthcare solutionsthat is dependent on communications

Rookie

SW&HW R&D Engineering

Rookie

No wireless projects at this time, but hope to play with it in the future.

Rookie

No wireless project at this time

Rookie

Wireless senor network (based on zigbee) for IoT

Rookie

WSN for medical sensors

Rookie

Mostly software, some hardware. Very little experience with wireless

Rookie

EE, technical translator for Rohde & Schwarz

 

Rookie

embedded sw, communications

milenasukovic: Audio has started. It  is woking for me (after reload) on imac with 10.7.5 and safari.

Rookie

Embeddes software, drivers

Rookie

no audio on my macbook air os x 10.7.5, switched to this while updating my imac to mountain lion os, did the audio lecture start?

Rookie

HW/SW R&D Engineering

Rookie

@ZA you are in scottsdale too!

 

 

Rookie

Hello from Ravensburg,

Mostly hardware with some firmware software.

Greetings from Halland

Rookie

Academic embedded design

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Military Systems - System Test

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Electro-mechanical product development

 

Rookie

Embedded systems consultant, hardware and software.

Current project is a wireless medical device

Rookie

Hello from Vienna

 

Rookie

Business Development ... currently focused on TVWS ... rural US and emerging markets overseas

 

Rookie

Wireless data monitoring, Renewable Energy

Rookie

HW & SW Tinkerer ~ Interactive Art

Rookie

HW R&D, medical devices

Rookie

Hi - From CA, working on M2M Smart Metering with G3 GSM Module.  isidro

 

Rookie

Hardware/software support-development

 

Rookie

Warming up in Silicon Valley...

Rookie

Good Morning from CA

Rookie

An antenna question ... For LE Bluetooth to a cell phone or tablet, with the tablet standing vertically and my device flat (horizontal), what antenna orientation would you recommend?  

Rookie

Good evening from snowy Munich.

 

Rookie

Another Bostonian here!

 

Rookie

Good morning everyone, from Scootsdale, AZ

Rookie

Good morning from Edmonton, AB

Rookie

greetings from sydney

Rookie

Greetings from Boston where we have a splendid morning.  jb

Rookie

Hi everyone. I missed yesterday´s class but I´m glad it´s still there to play on demand :)

Rookie

mornin' all .... from beautiful upstate New York! (Fingerlakes Region)

Rookie

Good Morning everyone!

Rookie

@somaira u from PAKISTAN?

Rookie

@sumaira its 2102 hours 

 

Rookie

hye all and good morning !

 

Rookie

Hello!

For how long time these lectures are available for listening here?

Rookie

Good morning from Scottsdale

Rookie

Good Morning from Frosty San Jose, CA.

 It's 34°F now with a High of 65°F.

Rookie

hi can u tell me wats the time of class in PAkistan

 

Rookie


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