Wireless Charging of Moving Electronics

Okay, so what can the scope of this be? How large can the induced power be, and still be safe for humans traveling with the receiver?

Not very impressive.

Yes, for once I agree with you, and I also fail to see the need for this, unless it is all about the future where no one has their own car, their own cigarette lighter plug to attach to, and has to rely on gadgets like this while the glumly stare ahead at the back of the head of the passenger in front of them on the bus to Nowheresville.

I say we stop, hey, whats that sound, everybody looks what's going down...

I think their idea goes way beyond that. I think their desire is to be able to recharge electric vehicles while the EVs are moving.

I think that is a Don Quixote type of dream, as the power levels would effectively cook the passengers. It is a really bad idea.

The new IFbatteries will obviate any need to in motion recharging.

In other words, this idea of wireless charging is obsolete before it gets out the starting gate.

Unless they shot a stream of electric current across open space (doesn't sound like they did) they transferred power, not electricity.

I've seen electric current transferred across open space. It can be very en-lightning.

No duh.

Unless they shot a stream of electric current across open space (doesn't sound like they did) they transferred power, not electricity.

maybe so,... but I would have to say, Nicolas Tesla was way ahead of his time... even just as a visionary.

Didn't say it was a good idea,... I just said he was a visionary.

Now if I had been talking about his AC motor, I'd say that was a good idea.

Yes. Who is to say that some day mankind will in fact be able to transmit vast amounts of electrical power (not at 60Hz) wirelessly. In a way, we already do. Think of large radio transmitters, and microwave towers.

There have even been plans to transmit microwave high power from orbital space above earth to ground receiving stations, supposedly dilute enough that a farmer could be in the field where the antenna array is on his tractor, plowing away without regard or concern.

If that technology can be conceived, and planned out only a few small steps short of fruition, who can say what could be done? Microwave XMTR in roadway?? Receiver under the belly of an 18 wheel truck/trailer? Cars would require even faster switch on and off times, probably using an optical or magnetic switch. Fairly high rate of power might be exchanged this way. The infrastructure cost would be prohibitive in nature, so it will never happen.

That's why in this matter, I called Tesla a visionary to separate this idea from the current practicality of it... but it still got mucked up.

And I agree, one doesn't know, what one doesn't know. Who knows what the future will bring.

...track a phone that's been shut off....

There's been a rumor that the NSA can turn on a phone which has been shut off. Apparently, they can't actually do that but they can make the phone appear to shut off but actually stay on.

http://money.cnn.com/2014/06/06/technology/security/nsa-turn-on-phone/index.html

In this pseudo shut off mode, the battery will eventually run down, so I suppose if phones were constantly being charged, they could be tracked indefinitely.

I think you actually have to remove the battery or SIMM chip.

Removing the battery is the safest bet, assuming that the battery is removable (not all are).

There are two processors in a smartphone, one to do phone things and one to do computer things. Some phones may keep the phone processor alive when shut down.

http://www.tomsguide.com/us/nsa-remotely-turn-on-phones,news-18854.html

If you want to check to see if your phone is really "off" when you shut it down, I suppose you could charge it all the way up and leave it off for a week or two and see if the battery loses some charge.

Agreed. On the other hand, systems such as the IFbattery will eventually take over this arena, it just makes sense to pull up, dump spent electrolyte, and simultaneously take on fresh solution, while you treat yourself inside the station to whatever convenience is your pleasure.

(Beer, beer nuts, slim jim sausage, whatever.)

I have often wondered if Beer nuts come in left hand threads and in metric sizes also?

IFbattery requires zero changes to road infrastructure, and only minor changes at roadside stops.

I did see one article where the gurus of Li+ ion battery EV technology have figured out that siphoning power away from EV's while parked and plugged in can increase battery life over 10%, I think it was 9% on energy, and 12% on power. To me, however, it smelled like an excuse to steal from employees while parked and plugged in. Just sayin'.

Witricity has been doing this sort of thing (improving magnetic coupling with resonance) for many years now (2009) but for stationary but not intimately positioned objects. (Close is relative ) Moving objects just require more 'transmitters'. Not really very practical for moving objects.

We worked on a DARPA proposal for underwater vehicles that would be re-charged using this concept to alleviate the requirements for precision alignment of the vehicle to the charging station when using conventional charging 'paddles'. Witricity was one of our team members.

http://witricity.com/

When I first read this, I wondered if 'charging on the move' meant it was a means of topping up my batteries by wireless - or whether it was a means of deducting money from my bank account at a steady rate per mile (or any length).

The latter. Not only that, but when you hook up your electric vehicle in the parking lot at the giant corporation, they will steal your power while you are slaving away in the boiler room. Thus, when you clock out your battery range won't even make it to the local pub, too bad.