![[personal profile]](https://www.dreamwidth.org/img/silk/identity/user.png){kind=small}
Entry tags:
Big Brother, here for your convenience
So we got home from Colorado this evening, arrived at Logan Airport, and went over to the parking lot. I pulled out my garage ticket, stuck it into the payment machine (they now ask you to pre-pay before going to your car), stuck in my credit card to pay, and got my receipt. Helpfully, the receipt told me which row my car was parked in, in case I had forgotten.
How the blithering heck did it know where my car was parked?
I mean, this was an anonymously-taken ticket from a week ago; they *might* infer which level I might be parked in (since it was the one they were encouraging at the time), but I parked in one of a number of open rows. Yes, I did scribble the location on my ticket, but I'd be damned impressed at any OCR software that can figure out my handwriting.
My best guess (and I'm open to simpler explanations) is that they're going through Long-Term Parking each night, recording the license plate numbers of all of the cars parked there, looking them up, and cross-referencing them with the credit card submitted for payment. (Or that they are photographing your license plate as you take your ticket when entering, and doing the cross-reference that way.) That's a non-trivial piece of engineering, but entirely feasible. But man -- that's kind of creepy, and it wouldn't even have occurred to me that they were doing it if it wasn't for that helpful line on the receipt...
How the blithering heck did it know where my car was parked?
I mean, this was an anonymously-taken ticket from a week ago; they *might* infer which level I might be parked in (since it was the one they were encouraging at the time), but I parked in one of a number of open rows. Yes, I did scribble the location on my ticket, but I'd be damned impressed at any OCR software that can figure out my handwriting.
My best guess (and I'm open to simpler explanations) is that they're going through Long-Term Parking each night, recording the license plate numbers of all of the cars parked there, looking them up, and cross-referencing them with the credit card submitted for payment. (Or that they are photographing your license plate as you take your ticket when entering, and doing the cross-reference that way.) That's a non-trivial piece of engineering, but entirely feasible. But man -- that's kind of creepy, and it wouldn't even have occurred to me that they were doing it if it wasn't for that helpful line on the receipt...
no subject
no subject
Heck, if it is based in digital photography, they don't even need to go through the parking lot - simple mounted cameras might be sufficient. If the machine's good at OCR, you might not even need a human being involved...
no subject
no subject
no subject
no subject
As for ineffective, the point would be to get people to use Fastpass, by giving them the find your car service in places like the airport, I would think.
no subject
I don't suspect triangulation will work very well. Each lane at every toll plaza that reads Fast Lane transponders has it's own reader (it's the square white plate mounted at an angle, overhead). There's a sensor that tells it there's a car in the lane. The reader sends a query to your transponder, and your transponder sends it's ID back to the reader. It's normal use assumes the location of the car, and merely tries to determine if it has a transponder ID. Every time this sequence is triggered, the battery in the transponder is depleted just a little bit more. That's the main reason the transponders periodically need to be replaced - the batteries aren't user serviceable. Even assuming that they could use triangulation to figure the location of the IDs returned en mass from a query, without a check that there's a new car in the spot, the repeated queries will run down the batteries quickly, which could end up annoying the people with depleted transponders who now have to shell out another $27 for a new one.
Most people who go through toll booths with any frequency will find the convenience of having a transponder to be worth the $27 every few years. Particularly with the toll discounts in places that offer those (25 cents at the Alston and Westin tolls on the Pike, 50 cents on the Tobin bridge, that I know of). I'm always amazed at the number of people waiting in the cash line at the Alston tolls, though. I doubt a 'which row are you parked in' service would entice any of them, if the current benefits don't. And I, at least, would rather save my battery for toll booths.
no subject
Really, I think I'd have included a wire to the cigarette lighter to allow for recharging, and a battery you could remove and replace yourself when it wouldn't take another recharge. Having to get another transponder when people know all about recharging tech from their cell phones seems kind of annoying.
no subject
no subject
Duh?
no subject
no subject
no subject
no subject
True -- but he's not the only one who conflates the two names. I make that mistake fairly often (having gone through EZ Pass tolls almost as often as Fast Lane ones).
Each lane at every toll plaza that reads Fast Lane transponders has it's own reader
True, but note that that is *not* how it works down in New Jersey. Highways that have really been redesigned properly for the system (such as the Garden State) just record the thing as you drive, more or less normally, at highway speeds, and not necessarily precisely in-lane. The system doesn't actually require the slow and separated cars that we have here: that's just the way it got retrofitted into the old toll booths.
So that implies that the system can cope with at least a somewhat messier environment if you design it right.
Hadn't known about the battery issue. Dumb design, indeed...
no subject
no subject
OTOH, if this project was security-motivated (as I have to suspect it was), it seems like Fastpass penetration isn't deep enough to be appropriate for the task -- they'd want some mechanism that is more comprehensive, that will record *all* of the cars in the garage...
no subject
Given that Logan has been known to move cars around in LTP to allow for better packing and random construction, this could be vital; while I've never had my car moved, I've been warned that it might be -- something they apparently don't tell you any more -- and seen them shuffling. Given that hooking my current car up to a normal tow truck has a good chance of borking the whole transmission, not so happy with this idea.
Yay technology. :-/
no subject
And yes: if you didn't use a credit card to pay, but still got told your row number, then that implies that the second theory is more likely, with a plate scan. I knew such technology existed, but haven't seen it in action before...
no subject
no subject
no subject
It's possible that they're just scanning and correlating the plates, but now I'm left wondering how much data lookup and recording they're actually doing. My bet is that this is a security feature, not a convenience one, which implies that they're probably logging all entrances and exits. (And I do wonder what they do if you have, eg, a plate that's too dirty to scan...)
no subject
no subject
This saved me at Manchester when I completely zoned on where my truck was (but I needed 30 minutes to come up with the plate number).
no subject
How it works
They take a picture of your license plate when you enter the garage, so it's associated with your ticket. And every night, they drive around and check the plates in all the spaces that might be newly-filled — that is, parking spaces that were previously empty, or whose previous occupant left in the past day.
Re: How it works
Re: How it works
Re: How it works
(Of course, I may be imputing a plan where there isn't one: they might just not get around to taking down the "Full" sign quickly. But it would make some sense to rotate levels a bit like this...)
no subject
They associate your license-plate with your card at time of parking card issuance. Later they associate the car with a location by automated scanning (which I have seen them do).
A bit of software sorting and searching, and from two duples, a triple: car, plate, location.
Then you make it a quadruple - car, plate, location, credit card ID. :-)
Now - to read and see if I matched the consensus.
no subject
They also use it to keep people from stealing the cars, somehow...