Thanks Mr.Dan for answering this question....I think i got confused and assumed that the sensor in the mobile phone also detects Electromagnetic radiation.....But now either I have to try to find out if pacemakers are affected by magnetic fields or look for sensor which can sense EMR and transfer it using a USB port ......
On Sat, Jul 24, 2010 at 1:34 PM, DanH <danhi...@ieee.org> wrote: > The cellphone does, in general, have a "sensor" that consists of the > cellphone radio. This is, as I understand it, a multi-function radio > that uses software techniques to simulate the electronics that would > be present in a more conventional design, and it is in theory capable > of all sorts of tricks. But that software is very complex and almost > certainly not accessible to the app programmer, so you'd have very > little chance of "hijacking" it to do your sensing, unless you could > somehow get one of the phone engineers involved. > > And like I said, you DON'T want to control the pacemaker -- that will > send any potential real investors running the other direction (BIG > liability issues). At most you want to just passively read the unit. > > On Jul 24, 10:42 am, Akila Sethuraman <sethuraman.ak...@gmail.com> > wrote: > > Thanks all for your inputs. But now, your answers have triggered some > more > > questions- > > 1. Just like Mr.Dan has proposed, we are planning to implement a simple > > pacemaker. Its basic function would be to periodically check the > heartbeat > > and see if it is irregular. If the heartbeat is say 50 per minute, then > the > > pacemaker would regulate it to 72 . Isn't that sufficient ?? > > 2. Also, i would like to know, why do i need an external sensor. Most of > the > > cellphones do have a sensor in-built which can sense the EMR. So, in > that > > case , cant I use the in-built sensor ?? > > > > Thanks for your time and suggestions. > > > > On Sat, Jul 24, 2010 at 7:37 AM, Bret Foreman <bret.fore...@gmail.com > >wrote: > > > > > > > > > As for connecting sensors to the phone, your best bet will be USB > > > based sensors. Almost the entire sensor market has gone over to these > > > devices because of their easy connection to PCs. The only hitch will > > > be getting access to the hardware I/O specifications of the sensor so > > > you can talk to it. Most sensor companies provide ready-made software > > > and don't publish the I/O specs. You'll need to find one who is > > > willing to work with you. The good news is that there are many of them > > > out there and they are hungry to get their hardware into new > > > applications. > > > > > As for the specific sensor, you need to get a physicist involved in > > > your project. The human body is mostly water and the penetration of > > > radio waves is inversely related to frequency. This is well studied > > > and will tell you which bands are going to concern your system. The > > > good news is that low frequencies (the most penetrating) are easy to > > > demodulate with modern high speed A/D systems (like the ones you will > > > have in your USB sensor). You need to get a signal processing expert > > > to help you with that part but modern Android phones have enough > > > processing power to handle the task, as I've found in my own work. > > > You'll also need some analog electronics for the "front end" to boost > > > the signal enough to demodulate it. Get an electrical engineer to help > > > you with that. > > > > > Overall it sounds like a fun project. In general, I recommend > > > consulting experts whenever you can rather than stumbling around. Most > > > are very generous with their time when helping students. Good luck, > > > and let me know if you get the system working well enough for a demo. > > > I know a huge number of venture capitalists who are always on the > > > lookout for investment opportunities. > > > > > -- > > > You received this message because you are subscribed to the Google > > > Groups "Android Beginners" group. > > > > > NEW! Try asking and tagging your question on Stack Overflow at > > >http://stackoverflow.com/questions/tagged/android > > > > > To unsubscribe from this group, send email to > > > android-beginners+unsubscr...@googlegroups.com<android-beginners%2bunsubscr...@googlegroups.com> > <android-beginners%2bunsubscr...@googlegroups.com<android-beginners%252bunsubscr...@googlegroups.com> > > > > > For more options, visit this group at > > >http://groups.google.com/group/android-beginners?hl=en > > > > -- > > Regards, > > Akila > > -- > You received this message because you are subscribed to the Google > Groups "Android Beginners" group. > > NEW! Try asking and tagging your question on Stack Overflow at > http://stackoverflow.com/questions/tagged/android > > To unsubscribe from this group, send email to > android-beginners+unsubscr...@googlegroups.com<android-beginners%2bunsubscr...@googlegroups.com> > For more options, visit this group at > http://groups.google.com/group/android-beginners?hl=en > -- Regards, Akila -- You received this message because you are subscribed to the Google Groups "Android Beginners" group. NEW! Try asking and tagging your question on Stack Overflow at http://stackoverflow.com/questions/tagged/android To unsubscribe from this group, send email to android-beginners+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-beginners?hl=en
