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Comment: Re:And how long does it take... (Score 1) 190

by EETech1 (#47726271) Attached to: How Does Tesla Build a Supercharger Charging Site?

So...

What would 100 Tesal owners talk about while they waited 30 minutes for a fill-up?

No... No... No!!!
My car is the most awesome car in the world...

Oh. Elon... He makes the best rockets too ya know... dummass NASA pork...

Did I mention My car is the better than your car?

So... What kind of gas mileage do you get?

I'm so glad we have this place to hang out and talk Tesla...

Comment: Re:Against man's stupidity... (Score 2) 24

by EETech1 (#47393413) Attached to: Industrial Control System Firms In Dragonfly Attack Identified

I use the eWon, and MBConnect devices all the time, one or the other goes in to every machine we build. They are VPN gateways with secure login so we can remotely work on a machine instead of having to immediately travel to it to check the slightest thing.

None of our customers leave the internet side of the device plugged in. Unless we are on the phone with them, and they are by the machine, it is unplugged. As an additional level of security, the device has a keyswitch connected to it that must be turned on to allow it to connect to the internet, just in case it gets plugged in.

Most devices are managed through the respective manufacturers applications via the cloud, so we just have to download their application, and log in, and it handles getting the keys, and establishing the secure VPN tunnel. It is possible to manage your own infrastructure, but I don't know of anyone who is large enough, or chooses to do it.

I put the eWon app on my brand new work PC, now I have to check if I got pwned the first day got my new Lappy:( The remote access apps are one of the few things that does not get installed on the VM. Connecting to the VPN, through the VM can really be a pain!

The MBConnect devices are really cool, they can even verify the entire system, and reload anything that does not match what is stored inside itself. Besides providing a huge obstacle for anyone wanting to Stuxnet the system, they allow a customer to replace a PLC with a spare, reboot, and have everything come back to normal, and they allow for easier updating of a whole system by passing the program to the MBConnect device, and having it apply the update locally.

Nothing more scary than flashing a PLC remotely, and rebooting it. If it doesn't come back online, you might have to take your Lappy, and leave on an immediate road trip!

Comment: Re:This is fraud. (Score 1) 289

Many things can happen when going into production. Perhaps they always intended to go into production with the cheaper controller, but they had a problem with the firmware they were struggling with, and so they used a more expensive controller that was a slam dunk to buy themselves more time to perfect the cheaper controller, and not miss their target delivery dates.

Comment: It won't matter anyway (Score 1, Interesting) 78

by EETech1 (#47246451) Attached to: EU, South Korea Collaborate On Superfast 5G Standards

I have 4G now, and it is still as slow as 3G, which is as slow as 2G, which is as slow as 1Xrtt when everyone is using their phones and the pipe to the tower is full. I often see 10 - 30 Kbps during peak times.

During the middle of the night, 1 bar will get me 1.3 - 1.9Mbps on 3G, and 3 - 5 Mbps on 4G, but during the day, I struggle to get 100Kbps on 3G or 4G, even with 5 bars.

I can watch my download speed increase as everyone goes to bed. It's funny (sad) to graph my download speed and see it jump up on the hour, and jump a little less on the half hour as the pipe opens up.

Cheers

Comment: Re: Throwing out all compatibility hooks makes it (Score 1) 164

by EETech1 (#47034115) Attached to: 30-Day Status Update On LibreSSL

Everyone who can, will jump ship to Theo's version ASAP. Being strong enough to demand the best, and accept nothing less is a good thing when it comes to software security.

Many of these libraries are essential, and mostly taken for granted.

How many people thought that it was already an OpenBSD project, and had Theo's scrutiny already?

There are some true leaders within the OSS world, and we are lucky to enjoy what is made of their efforts. As the TLAs become increasingly invasive in our daily lives, having well written clearly documented textbook code is the only thing you can count on to provide any level of security.

Version 4.0 of Linux will be the same way. Linus will take his kernel, and go where things are sane again, and there will be no compromises. Take it or leave it. This is how things are done. Correctness is the law of the land.

Or you will be taken of your privacy, and computer security at every possible turn.

Comment: Re:What size does one take? (Score 1) 193

by EETech1 (#46802673) Attached to: Why Tesla Really Needs a Gigafactory

I worked on a hybrid demo that used 14,400 of them.

25 of them connected in parallel.
(3.7V @ 75Ah)

12 groups of the 25 in series.
(44.4V @ 75Ah)

16 of the 25 X 12 sets in series.
(710V @ 75Ah)

3 of the 16 X 25 X 12 sets in parallel.
(710V @ 225Ah)

Very scary to work with, especially in the bilge of a boat!

We went way overboard with the charge monitoring, but when we had cells fail while we were testing, they could be easily identified, and swapped out, then the rest of the pack was returned to service. I think the same could be done here.

My guess is there will be rebuilders that spring up to disassemble and test the cells, and replace the few bad ones with other used ones of similar vintage and capacity, and sell the used / repaired packs. A few weak cells can really hurt the pack as a whole.

When I used to race R/C everyone had their secret methods of treating cells to boost Voltage and or Capacity, and I'm sure there is some money to be made if someone can recondition the cells to get some of their lost capacity back. Perhaps take the packs apart, hook them up to a windmill, and cycle them through a few test and re-conditioning charge cycles to bring some of their life back while making a little coin as grid storage.

1. collect old EV batteries
2. disassemble
3. test (PROFIT!!!)
4. sort
5. recondition (PROFIT!!!)
6. reassemble
7. PROFIT!!!

APL hackers do it in the quad.

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