Andrew Dakers wrote: > > Hi there! > > I have just joined the list after coming across it while in the process of > specing up a wearable PC. If any of you have any ideas on how I could > improve the design/ spec of the unit I would appreciate some feedback.... > > Here's what I'm planning: > 1) HMD - Albatech Personal Monitor with Parvus VGA to NTSC convertor > (PC/104) > OR I/O I-glasses --- does anyone have any suggestions for a fairly cheap > colour HMD solution and/or experience of either of these devices? > 2) Labtech C-324 Headset > OR Sony ECM-T140 Omni-directional tie microphone -- really want a tie mic > that is not omni-directional to use with the I-Glasses > 3) PGI Micro Keyboard and Cyberstick > OR the Twiddler > 4) Parvus AudioDrive PC/104 card > 5) 3Com PC Card Modem and Network Combo > 6) Digital Logic MSMJ104D 2 Slot PC-CARD onboard > 7) Toshiba 2.1Gb 2.5" 2105MAV HD > 8) Ampro P5i CoreModule 133Mhz with 64Mb RAM > OR Digital Logic MSMP5 - PENTIUM 133 0r 166 with 64Mb RAM -- does anyone > have any experience of either of these cards? > 9) Diamond V104 Power Supply, with BC 104 Battery Charger Unit and PMC104 > Power Management Controller -- does anyone have any experience of these > cards? Is the PMC104 a separate PC/104 power management card? All you really need is a clean 5V signal from a DC-DC converter. You don't need a power management card on your pc/104 stack. The only advantage would be to drive it with AC. > 10) Sony ACC KIT-200 -- Consisting of three NP-F930/Bs Batteries, one > NPA-10000/B Three Battery Holder and one AC-V900/B Charger -- how many > hours battery life might I get? Are there any better battery solutions? No, these are the best batteries out there at the moment. > ...this will all be built into a customised jacket. I plan to keep all of > the cards sitting along side each other (rather than stacking them), > distributing the weight around the jacket. This sounds like a rather bulky wearable. > I have three concerns: 1) Hard > disk movement -- how is it best packaged? And where on the body? 2) > Shielding of all the components without causing too much of a heat build up. > With all the concerns about mobile phones causing cancers, does anyone have > any neat solutions for shielding wearable computers, I wouldn't worry about the EM fields. I'm sure there are significant EM fields generated by a wearable, but its nothing like a cellular phone that's transmitting rf signals to a distant transceiver tower. I'm not sure how you would rig up anything to block the signals. Presumably some sort of grounded wire cage. > and at the same time > keeping them cool? 3) What will the total weight of the jacket be like? I would guess about 4-5 lbs. You might also want to consider some sort of enclosure to protect the components from a splash of water, or bumping into a hard objects. -Paul -- R. Paul McCarty / DARS Coordinator // x52059 317 Lattimore Hall, University of Rochester, Rochester, NY 14627 Computers don't make errors; what they do, they do on purpose.-Dale/KOTH -- Subcription/unsubscription/info requests: send e-mail with subject of "subscribe", "unsubscribe", or "info" to
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