Thinking about trying one of these as my machine's SD Card

khauser wrote:Found the manual...

I think it *might* work. Reservations include the fact that there is one "image" on the card always, so if the xPAP machine wants the card to look extremely specifically as it does (no extra files) then it won't work.

Wouldn't work with Resmed machines, then. I'm not sure about Philips.

Another reservation is that I think the name of the volume is fixed. That could be a killer too.

I'm pretty sure that would blow up on Resmed too.

A positive, though, is that the manual absolutely makes it clear that the device can be configured to work on my home network, and that it works with non-video files (but it won't push them automatically)

I do wish people wouldn't be so focused on what they think you're going to do with their product that they make it difficult to do other things with it. What problem was the file type filter intended to correct? Do some cameras save something other than image data to their SD cards? Seems to me it would be simpler and more versatile to just push all files.

http://www.ebay.com/itm/SYLVANIA-SMARTB ... 4d098bb48d



You could buy this netbook and place it next to your bed. Insert the card in the morning and go to your regular pc and remotely log in. You could also rig this to record video so you can see what is happening during events.

Otter wrote:Is the issue that the card only looks for and transmits image files? That sounds a) moronic, and b) hackable. Whether or not it would be worth the effort to hack it is another thing, though.

Indeedy. I wonder if any of them are firmware upgradeable?

My concern was that it didn't look like it would hook up to your home wireless router and present itself as a network as an accessible drive.

Connecting directly to the card from your computer might work, but you'd have to shut down your regular network connection, then connect to the wifi card via wireless.

There's also some concern that the card inside the machine may not be powered all the time. It was suggested that the machine may only power the card when it's reading or writing to it.

Then does the machine leave files open where you wouldn't be able to read them? Then only close the file just before turning off power?

It might work, but there are obstacles.

It really would cost very little to add a wireless networking option to these units. Our PR System 1 has snap-in modems (wired or wireless) that can transmit data to our respiratory therapy clinic. How much different would an actual wifi device be?

fdmundo wrote:It really would cost very little to add a wireless networking option to these units. Our PR System 1 has snap-in modems (wired or wireless) that can transmit data to our respiratory therapy clinic. How much different would an actual wifi device be?

They probably don't want the extra 200 calls a day from people not being able to connect it to their home network.

fdmundo wrote:It really would cost very little to add a wireless networking option to these units. Our PR System 1 has snap-in modems (wired or wireless) that can transmit data to our respiratory therapy clinic. How much different would an actual wifi device be?

If they did it like most manufacturers these days, it would be insecure and susceptible to viruses.

They're finding all kinds of things like controllers at power plants are full of security holes.

I actually remove my respironics card and get the data on a normal SD card before importing it into sleepyhead. I keep the SD card locked when in my PC in case any stuff is written on it. I always have 2 cards with data - the original always in the machine, and a SD that I put in my machine for an update and download of data before it goes into my PC...

archangle wrote:My concern was that it didn't look like it would hook up to your home wireless router and present itself as a network as an accessible drive.

Connecting directly to the card from your computer might work, but you'd have to shut down your regular network connection, then connect to the wifi card via wireless.

There's also some concern that the card inside the machine may not be powered all the time. It was suggested that the machine may only power the card when it's reading or writing to it.

Then does the machine leave files open where you wouldn't be able to read them? Then only close the file just before turning off power?

It might work, but there are obstacles.

After reading the manual for the Transcend I can tell you that it CAN be hooked up to the router. You do have to create an adhoc connection to configure it, but that's a one-time issue. Also, it can be configured with an android or apple smartphone.

The power issue is concerning. Hadn't thought about that!

khauser wrote:

Anyone try one of these?

"Transcend’s Wi-Fi SD card instantly adds wireless capability to your digital camera, letting you stream photos and videos to portable devices without the hassle of using cables, card readers or a computer. Take advantage of the high resolution of your digital camera and the versatility of your smartphone or tablet to share beautifully captured photos to the world as soon as you take them."

pikov22 wrote:

khauser wrote:

Anyone try one of these?

"Transcend’s Wi-Fi SD card instantly adds wireless capability to your digital camera, letting you stream photos and videos to portable devices without the hassle of using cables, card readers or a computer. Take advantage of the high resolution of your digital camera and the versatility of your smartphone or tablet to share beautifully captured photos to the world as soon as you take them."

Yes, that is the sales tag.
Reading the user's manual, you'll find that it also allows a computer to access it via Wi-fi, even on a router, and in that mode you can access any file on it.

khauser wrote:After reading the manual for the Transcend I can tell you that it CAN be hooked up to the router. You do have to create an adhoc connection to configure it, but that's a one-time issue. Also, it can be configured with an android or apple smartphone.

Good info. Sounds good on paper. I'm skeptical because wifi is such a pain in the neck so much of the time due to horrid design quality.

I'd love to hear that someone has it working "the right way" through their home wireless router.

I'm also a little concerned about blasting out 2.4 GHz RF signals inside the case next to the electronics that run the CPAP machine. Yes, it's not a lot of power, but it is really close. Ever hear noise from your cell phone through your computer speakers?

archangle wrote:Ever hear noise from your cell phone through your computer speakers?

Sometimes before my cell phone rings, my office phone will start to make a buzzing noise. That is if they are near.

archangle wrote:I'm also a little concerned about blasting out 2.4 GHz RF signals inside the case next to the electronics that run the CPAP machine. Yes, it's not a lot of power, but it is really close. Ever hear noise from your cell phone through your computer speakers?

Would that signal be any stronger than the signal from a nearby radio tower? I"m way too sleepy to do the math, but I suspect there just isn't enough energy there to flip a bit.

Otter wrote:

archangle wrote:I'm also a little concerned about blasting out 2.4 GHz RF signals inside the case next to the electronics that run the CPAP machine. Yes, it's not a lot of power, but it is really close. Ever hear noise from your cell phone through your computer speakers?

Would that signal be any stronger than the signal from a nearby radio tower? I"m way too sleepy to do the math, but I suspect there just isn't enough energy there to flip a bit.

Much, much stronger. RF field strength varies with the square of the distance. The SD card is less than an inch from the circuit board. It's also electrically connected and could simply conduct the RF noise into the system through the wiring. It's also close enough to get inductive or capacitive coupling. Plus it's inside the case of the box. I don't know if the case of the S9 has any conductive material in the plastic to block RF.

It's certainly not "safe" from an electromagnetic interference point of view. It wouldn't be at all surprising if it would flip a bit somewhere in the processor and cause it to crash every so often. Even if it didn't do any damage, it might make the machine shut down or have an error.

I'd certainly recommend against it if I worked for a CPAP manufacturer or the SD card manufacturer. I can't guess what the odds of trouble are in the real world.