EV general discussion

Kenai said:
I don't think being able to interpret the signs is particularly the problem for these systems - it's more identifying whether they're relevant, i.e. seeing signs on adjacent roads etc.
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Agreed, add in also damaged or obscured signs to the mix and that seems to cover most of the issues I encounter.

Fundamentally UK speed limit signs are a trivial computer vision problem in theory, a clear undamaged and relevant sign is quite easily read and processed. Changing to QR codes wouldn't really change that but come with a huge cost. I doubt if many or any of the places where current systems fall over can be fixed by QR codes.
 
NFC is the only real answer. You have to he close enough to scan to determine how much trouble you're in e.g. child 10 points, moose 12 points
 
I think some form of road sign reading or a mobile transmitter will need to be built in to supplement the satnav (not a problem some cars already have it)

so that when workers are doing something in the street and need to set up temp restrictions.

of course then there will be the issue with drunk scallies moving the 30 mph limit sign/transmitter and putting on a motorway .

the human element is always going to be the hardest thing to get around, be it them making a mistake, their tomfoolery or them deliberately trying to hack them/cause them to fail etc
 
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QR codes would actually make things worse in many cases, because road signs generally have 1 or 2 bits of data on them - a symbol or up to 2 numbers. So it would take far less of an obstruction (dirt, tree branch, leaves) to render a QR code invalid/unreadable, vs. a symbol or number which have a very limited subset and are easily readable even when partly obscured.
 
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Kenai said:
I don't think being able to interpret the signs is particularly the problem for these systems - it's more identifying whether they're relevant, i.e. seeing signs on adjacent roads etc.
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Yup - my car reads speed limit signs (even the variable limit signs on smart freeways) - and sometimes it picks up the limit on an adjacent road (ramp etc). I'm almost ready to turn off the speeding alert chimes.
 
.... Does tesla/most use only one camera for autopilot and sign identification, which itself, hinders identifying the direction sign is pointing.

If only the Nav just knew where the pot-holes were, information shared by the cloud, that'd be a must have option, to determine real speed limit
if Musk hadn't been playing around with twitter maybe he'd have had time to prioritize it
 
jpaul said:
.... Does tesla/most use only one camera for autopilot and sign identification, which itself, hinders identifying the direction sign is pointing.

If only the Nav just knew where the pot-holes were, information shared by the cloud, that'd be a must have option, to determine real speed limit
if Musk hadn't been playing around with twitter maybe he'd have had time to prioritize it
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Three cameras mounted behind the windshield provide broad visibility in front of the car, and focused, long-range detection of distant objects.

Wide
120 degree fisheye lens captures traffic lights, obstacles cutting into the path of travel and objects at close range. Particularly useful in urban, low speed maneuvering.

Main
Covers a broad spectrum of use cases.

Narrow
Provides a focused, long-range view of distant features. Useful in high-speed operation.

There's 5 other cameras as well for autopilot - rear, blind spot and forward-looking side mounted in the b pillars.
 
Sinbad2000 said:
Three cameras mounted behind the windshield provide broad visibility in front of the car, and focused, long-range detection of distant objects.
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thanks realised I hadn't used the word stereo (optical vision), but if a car has that, simpler task of sign orientation/identification, and, obstacle distances could be easier to calculate
(than tesla change of angle with time it has to do w/o lidar)

[see forbes has interesting article on vision https://www.forbes.com/sites/sabbir...opel-transportation-autonomy/?sh=17b8bba1147f
which makes interesting negative on typical lidar
At 200 m, small obstacles like bricks or tire debris will register very few points (maybe 2-3 in the vertical and 3-5 in the horizontal direction), making object recognition difficult.
]
 
jpaul said:
If only the Nav just knew where the pot-holes were, information shared by the cloud, that'd be a must have option, to determine real speed limit
if Musk hadn't been playing around with twitter maybe he'd have had time to prioritize it
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I presume your trolling again?

You do understand how bad the UK roads are in general ? Potholes on sat nav... Don't be ridiculous. Would be hundreds of thousands a day needing updated/filled in/changed/new ones etc - utterly ludicrous and never going to happen.

As a driver you wouldn't last 2 minutes trying keep up with a sat nav screaming at you all the time to avoid 100 potholes per road etc
 
booyaka said:
I presume your trolling again?

You do understand how bad the UK roads are in general ? Potholes on sat nav... Don't be ridiculous. Would be hundreds of thousands a day needing updated/filled in/changed/new ones etc - utterly ludicrous and never going to happen.

As a driver you wouldn't last 2 minutes trying keep up with a sat nav screaming at you all the time to avoid 100 potholes per road etc
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???

Waze has lots of people reporting pot holes.
 
booyaka said:
yeah but what use is that.... They are fixed, new ones appear, constant stream of "pothole ahead" warnings and then need to report for "incorrect" etc - Just never going to be worth the hassle.
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Not sure what you are arguing. Waze literally does this and it isn't an issue? People report them, people mark them as fixed or not --- it helps drivers be aware of a pot hole of significant proportion that someone has taken the time to record it.
 
booyaka said:
I presume your trolling again?

You do understand how bad the UK roads are in general ? Potholes on sat nav... Don't be ridiculous. Would be hundreds of thousands a day needing updated/filled in/changed/new ones etc - utterly ludicrous and never going to happen.
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if you meant mocking musk then yes he had listed such a capability on his vaporware shopping list
otherwise, you don't log/steer around/alert every pothole - just the cavernous ones causing big suspension perturbation

------------
[
? on this morning stellantis outcry for uk battery factories seems, compared to bbc/media rendition, it is the absence of near term LFP cell capacity in europe that is the problem,
otherwise rishi&co could just (modify brexit &) waive import duty on cells from europe https://europe.autonews.com/automakers/stellantis-will-cut-costs-europe-lfp-batteries
]
 
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