EEVblog #1224 - uBeam is Sinking! - Page 1
Forum section: electronics / general

author: mdszy
author_rank: Unknown
timestamp: June 26, 2019, 03:05:14 am
content: Everyone's favorite impractical technology ship, the SS uBeam has finally hit the iceberg, but what's left of the band is still playing as it sinks!#uBeam #WirelessPower #FAIL

author: mdszy
author_rank: Unknown
timestamp: June 26, 2019, 03:07:04 am
content: I find it pretty hilarious how they used a PROPANE powered forklift as their stock footage, and didn't even bother finding stock footage of an electric forklift runningAnd uBeam in a car? Where 12V is available wherever, at very high currents? Good luck cranking a car over ultrasonic!

author: MrMobodies
author_rank: Super Contributor
timestamp: June 26, 2019, 04:08:17 am
content: Some of her statements seem to collide.QuoteHow would she know is she doesn't understand the technology in terms of practicality.I am not sure they literally told her from her speech that "It wouldn't work" or "It would be too impractical."I made a little rearrangement with some other quotes:Quote

author: ludzinc
author_rank: Unknown
timestamp: June 26, 2019, 06:14:33 am
content: Quote from: mdszy on June 26, 2019, 03:07:04 amTo be fair, the ad calls out powering sensors on the forklift, not the forklift itself.To be critical, how would this be better than a CR2032 cell powering the sensor? Answer - not at all!

author: mdszy
author_rank: Unknown
timestamp: June 26, 2019, 12:21:40 pm
content: Quote from: ludzinc on June 26, 2019, 06:14:33 amAnd again, couldn't they just use the forklift's power system to power the sensor? These vehicles have lots of power available all over them!

author: Jacon
author_rank: Regular Contributor
timestamp: June 26, 2019, 12:24:12 pm
content: This all uBeam crap resembles that infamous Elisabeth Holmes with her Theranos to me

author: rrinker
author_rank: Super Contributor
timestamp: June 26, 2019, 01:25:21 pm
content: Quote from: mdszy on June 26, 2019, 03:07:04 amWhile I agree this product is completely impractical, I think what they meant by having the icon on the fork truck was to power the scanner/picking terminal mounted on it, not the fork truck itself. Still silly because propane or electric fork truck, the power demands of the scanner would be minuscule compared to driving the truck or operating the hydraulics, so it's still pretty pointless to uBeam the power.

author: Deodand2014
author_rank: Regular Contributor
timestamp: June 26, 2019, 01:33:25 pm
content: That TEDx talk at the end made me think of a couple of episodes of the (currently on hiatus) Exposing PseudoAstronomy podcast, in the first the host takes on someone making claims that there is a tenth planet in the solar system:QuoteLink to full show noteshttp://podcast.sjrdesign.net/shownotes_071.phpThe other discusses why science is hard and expensive:QuoteLink to full show noteshttp://podcast.sjrdesign.net/shownotes_082.php

author: Jan Audio
author_rank: Frequent Contributor
timestamp: June 26, 2019, 02:10:41 pm
content: Funny, jet engine, forklift, medical stuff.In amerika they have a word for this : wishfull thinking.If you believe in it and donate it gonna be alright.

author: SparkyFX
author_rank: Frequent Contributor
timestamp: June 26, 2019, 02:18:37 pm
content: No one questions that (ultra)sound transports energy... No one questions that sound can be focused. Ultrasound applications itself are all over the place. The technical limitations are buried in the question which amount of mass you can drive at ultrasonic frequency and how you pick it up again without losing resonance (w/o backchannel to the sender).Then line of sight and a somewhat steady position present harsh requirements when your key selling point is to energize mobile applications.Maybe it´s a marketing technique to exaggerate the con side, so that the pro side looks more favourable.But seriously, when the results show that only a small amount of energy can be transferred and the problem for this solution needs to be searched, the marketing for it might be to bold.No one could argue about it if there was an actual application that works.

author: EEVblog
author_rank: Unknown
timestamp: June 26, 2019, 02:34:19 pm
content: Quote from: rrinker on June 26, 2019, 01:25:21 pmEven then it's a ridiculous solution.Have you seen what forklifts do and how they move and spin around constantly.From uBeam's own data we know that anything beyond a 1-2m is pointless for anything but low power sensor types devices, so it's shot right there.Then you need the directional system to work and it'd have to mounted on the top and have a larger capture area 360deg receiver array.Then it doesn't work when it goes between shelving etc, so it shot down right there again.All that dicking around and complexity and finickiness to power a low power device you could power all day from a small rechargeable battery for 100% operational reliability, it's no contest, ultrasonic wireless power in this instance, and most other instances is just a complete non-starter.This is why in 8 years they haven't made a single real-world truly useful practical demo despite 10's of millions of dollars and some of the best engineering talent available. And those same engineers who worked on it will tell you the same thing.

author: mdszy
author_rank: Unknown
timestamp: June 26, 2019, 03:24:42 pm
content: Quote from: EEVblog on June 26, 2019, 02:34:19 pmWait wait wait, I thought you COULDN'T be an engineer to build these things! Engineers think too linearly to figure this stuff out! That's their problem, they hired TOO MANY engineers!

author: SparkyFX
author_rank: Frequent Contributor
timestamp: June 26, 2019, 04:30:49 pm
content: Catch-22, without them funding would have been too hard.

author: schmitt trigger
author_rank: Super Contributor
timestamp: June 26, 2019, 05:37:20 pm
content: I only have an explanation for the proliferation of all these pseudo-science nuts: The flat-earthers are starting to metastasize.

author: SparkyFX
author_rank: Frequent Contributor
timestamp: June 26, 2019, 06:04:08 pm
content: So on a flat earth it would work? Wait a second, .... so it proves earth is not flat, otherwise it would work?Like... a model that accurately describes shadows, the water cycle, zodiac signs on northern and southern hemisphere?No, what you got there is very easy money. The right keywords were applied: new technology, somewhat household buzzwords, top people, working demo. And that pays their bills, so it seems.Who in his right mind throws away such amounts of money - would be the question.

author: rrinker
author_rank: Super Contributor
timestamp: June 26, 2019, 06:42:37 pm
content: Oh I agree it's still a silly idea with little real-world practicality.I can think of a way it MIGHT be used, at least with an electric fork truck. Not as a constant power source, but for charging. Electric for trucks are typically parked in a fixed location where the charging station is - so you have machine standing still for some time with, very likely, the back side (non-screen) of the electronic device pointed right at a wall. And only a meter or less from said wall. About best case for uBeam. But yes, still way too complex when all you need to do is power the device from the fork truck's massive battery pack, the additional draw of that device running (which still needs RF wireless networkng!) would maybe mean you can drive the fork truck a few centimeters less per charge - meaningless. And no fancy pants ultrasonic transmitter and receiver needed.It's sort of like the newest craze (so it seems) in model railroads - Dead Rail, which is a battery on board the locomotive and no power to the tracks. This is barely practical with current battery chemistry in HO scale. Smaller scales, forget it. In larger scales, especially G scale outdoors in the garden, it's been done for years - because if you think keeping track clean indoors is tough, try it with track left out in the weather, year around. An intermediate idea would be to power most of the track, and have the battery charge whenever there was sufficient power, but the battery would run things over dirty or deliberately left dead areas, thus extending the run time. This may be the sort of thing uBeam is trying to promote, since anything that freely moves around is never going to stay in line of site for full power transfer of one of their transmitters, but use it for opportunistic charging - maybe, just MAYBE it could do something. But since you can't set your portable device down, you can't hold it with your hand over the back, and all the other restrictions with ultrasonic transfer - in the end, nope. Not worth it.

author: mdszy
author_rank: Unknown
timestamp: June 26, 2019, 07:17:39 pm
content: Quote from: rrinker on June 26, 2019, 06:42:37 pmThere's no way you'd be able to provide enough power to charge a forklift in any reasonable amount of time. Plugging it in when it's parked is really not difficult. On the ones I've used, there's a big-ass connector on the back, you disconnect it, hook the battery-end up to the charger and wait a few hours.Forklifts weigh on the order of 8000lbs, it takes a lot of juice to get them moving, and the batteries in them are GIGANTIC. At least, again, for the electric ones. The propane ones don't need charging because an alternator on the motor can provide all the electric charging for the small battery inside.But yeah, no way you could use uBeam to charge a forklift... unless you don't mind waiting a few days for your forklift to charge up.

author: thm_w
author_rank: Super Contributor
timestamp: June 26, 2019, 07:55:55 pm
content: Some of the Energous advertising material looks very similar to uBeam (same BS with the charging of PC monitors, laptops):https://ir.energous.com/https://content.equisolve.net/_798413ccf11eb1375a25a5fd9475e223/energous/db/223/1878/pdf/Energous+Investor+Overview+Jan+2019.pdfI wonder if there was a non-compete clause for this new CEO guy at all.They have a dev kit as well but it looks like a simple inductive type charger, not clear what the range is:https://energous.com/applications/hearing-aids-and-psaps/

author: MrMobodies
author_rank: Super Contributor
timestamp: June 26, 2019, 10:40:23 pm
content: Quote from: thm_w on June 26, 2019, 07:55:55 pmAnd in there I have looked and some of the images look fake and copied from somewhere or some cad package which doesn't inspire any confidence in me.I knew there was something about those images.Just do a Google search.

author: rrinker
author_rank: Super Contributor
timestamp: June 27, 2019, 03:25:24 pm
content: Quote from: mdszy on June 26, 2019, 07:17:39 pmNo, you misunderstood. I wasn't referring to charging the forklift itself, but the electronic device used by the operator to scan and pick items as they drive around. Since the forklift is stationary when plugged in to its charger, you have a good chance of having a short range, fixed direction for the uBeam system to work to simultaneously charge the electronic device. But - it would just be easier and cheaper to power the electronic device from the big battery pack, with such a minuscule effect on the drain as to not measurably alter how long the forklift can run between charges.In the end - another case where it actually could work - but it's not practical or cost effective to bother paying for all the extra uBeam woo woo. I don't think even they were crazy enough to think this technology would work to charge up large battery packs like the forklift or an electric car - just pull your Tesla into the garage and it automatically charges! No need to plug in that pesky charging cable, forget about it, and rip the charger off the wall the next morning! Yeah, not going to happen. Just as soon put a pair of pickups on the underside of the car like a slot car and charge that way.