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Do We Have a Compatable Alpine database?
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Andy_P
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PostPosted: Mon Feb 04, 2013 1:44 pm    Post subject: Reply with quote

Kremmen wrote:
If they are directional then we need some form of simple conversion.



Isn't that what we've been trying to do for the last week or so? Laughing
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M8TJT
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PostPosted: Mon Feb 04, 2013 3:04 pm    Post subject: Reply with quote

I have just done some tests agains a couple of test fixed cams on a dual carriageway. They are definitely not directional even with a route set (as I was certain they weren't) unless the have direction data in the normal iGO .txt file. So it appears that the other database is definitely directional as per Robert's findings. Now to find out how the other database/Alpine work together to extract this data from the last col in the .txt file Confused

Robert, I have sent you a PM.

@Andy_P. Your last seems to sum it up pretty much Very Happy
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r4robert
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PostPosted: Mon Feb 04, 2013 4:13 pm    Post subject: Reply with quote

M8TJT wrote:
When you say your variants of the pgpsw database didn't work, what didn't work? Did they not load or did they not display the cams etc?

With the two zeros added, ie:

X,Y,Type,Speed,DirType,Direction
-0.21986,51.44987,1,40,0,0
-0.2193,51.45624,1,30,0,0

I get this message:



and without the zeros, ie.

X,Y,Type,Speed,DirType,Direction
-0.21986,51.44987,1,40,1,51
-0.2193,51.45624,1,30,1,18

The 928 freezes like this (the Yellow area says "Yes")



Either way I get nowhere Sad

Regards Smile
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r4robert
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PostPosted: Mon Feb 04, 2013 4:18 pm    Post subject: Reply with quote

Andy_P wrote:
Multiple confusion here... but lets start at the beginning. You seem to hjave gone wrong right from the top when you say this:

r4robert wrote:

The iGO database has a camera in Balham High Road/junction Marius Road. Coordinates taken from the PGPSW database (Yellow "we need you") give its location as 51.44011 -0.15568.


How did you get those coordinates? 'Cos there is no camera there on our submission map.

But there is one about 130metres south of that position, at 51.43918,-0.15618 which agrees with your next statement.

As a general note, whenever entering coordinates on the submission map, make suree you put a comma between the Lat and Long and NO space. (thus - 51.43918,-0.15618)
You get some weird results if you don't stick to that rule.


You are absolutely right. Sorry, I'm the one who is in error.

We ARE talking about the same camera!

Thanks for pointing this out Smile

-Robert
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Kremmen
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PostPosted: Tue Feb 05, 2013 7:40 am    Post subject: Reply with quote

Andy_P wrote:
Kremmen wrote:
If they are directional then we need some form of simple conversion.



Isn't that what we've been trying to do for the last week or so? Laughing


Laughing

I didn't phrase that very well.

Rather than trying to be clever with a mathematical solution that seems to be eluding us, I was thinking about identifying a few cameras that point NSEW and see what Alpine reckon that converts to. Then simply replace one with the other.

If you look at the manual, section 3.6

http://www.alpine-europe.com/fileadmin/user_upload/manuals//car_audio_manuals/INE-W928R/OM_INE-W928R_NS_EN.pdf

it shows that you can save an 'alert point' including speed and direction. I wonder if, once created, it would be possible to interrogate the data and get a proper conversion?
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r4robert
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PostPosted: Tue Feb 05, 2013 9:10 pm    Post subject: Reply with quote

Quote:
If you look at the manual, section 3.6

http://www.alpine-europe.com/fileadmin/user_upload/manuals//car_audio_manuals/INE-W928R/OM_INE-W928R_NS_EN.pdf

it shows that you can save an 'alert point' including speed and direction. I wonder if, once created, it would be possible to interrogate the data and get a proper conversion?

The problem I have experienced is that I cannot distinguish between Alert Points and regular camera data when I download the 'Device Info' on to an SD card.

There is no separate heading "Alert Points", just the familiar

X,Y,TYPE,SPEED,DIRTYPE,DIRECTION
1.55944,42.52194,1,60,0,9b298
etc,
etc.

Unfortunately, there is no provision for connecting the 928 up to a laptop, directly Sad

Sorry, I'm stumped. Smile
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Kremmen
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PostPosted: Wed Feb 06, 2013 7:50 am    Post subject: Reply with quote

OK

I'm still looking but why they have to be so complicated beats me Sad
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Last edited by Kremmen on Wed Feb 06, 2013 9:58 am; edited 1 time in total
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M8TJT
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PostPosted: Wed Feb 06, 2013 9:36 am    Post subject: Reply with quote

So that Alpine get all the revenue from cam database sales. Simples Rolling Eyes
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Kremmen
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PostPosted: Wed Feb 06, 2013 11:38 am    Post subject: Reply with quote

I've been focusing on one camera to try and get a clue:

0.15525, 51.45048 Gravel Hill Bexleyheath.

I just can't figure how 36394 gets converted to something like 135

Also, some others where the angle is greater the Hex value is lower, but not always.

I give up !
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DennisN
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PostPosted: Wed Feb 06, 2013 11:41 am    Post subject: Reply with quote

Have you tried feeding it into an Enigma decoding thingy? Very Happy
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M8TJT
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PostPosted: Wed Feb 06, 2013 1:24 pm    Post subject: Reply with quote

Kremmen wrote:
I just can't figure how 36394 gets converted to something like 135
The SCDB bog std iGO database has no directional data in it, so I have a bit of doubt in my mind whether the hex values are directioal data. Unfortunately, Robert has not got back to us to indicate whether ie SCDB Alpine database is directional on a single carriagewayor not.
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Kremmen
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PostPosted: Wed Feb 06, 2013 1:44 pm    Post subject: Reply with quote

I thought he'd said it was directional ?

Plus, the screen input of an alert point allows directional so I'm guessing it is highly coded to protect the scdb.

I suppose one way to test it would be to put the same Hex value (130e3) at the end of each record in a small sample of different points and see if the Alpine sucks it in.
Yes the directions will be 'skew-whiff' but it will confirm whether it's pure coded direction or direction and some form of checksum added to the number you first thought of.
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M8TJT
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PostPosted: Wed Feb 06, 2013 2:05 pm    Post subject: Reply with quote

Kremmen wrote:
I thought he'd said it was directional ?
He did say that it appeared to be so on the A3 dual carriageway, but has not reported back on his findings on a single carriageway
Quote:
Plus, the screen input of an alert point allows directional so I'm guessing it is highly coded to protect the scdb.
Yes, iGO is directional, and it would appear that you can enter directional stuff in the UI, but it's the Alpine device that's 'decoding' the scdb database, so it's an Alpine thing, not an scdb thing. On your bog std iGO, you can edit a speedcam and the edit screen indicates whether the cam is one way, two way or omni direction. The latter being the case if there are two zeros in the last two cols of the data.

@ Robert. Can you edit an existing cam in the Alpine UI? If it's the same as Primo, then, in the edit screen, if the cam is one way, it's shown with a red 'radar' beam or perhaps an arrow, non directional cams have a red circle around them or perhaps a four way arrow.
Quote:
I suppose one way to test it would be to put the same Hex value (130e3) at the end of each record in a small sample of different points and see if the Alpine sucks it in.
Sounds good to me.
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r4robert
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PostPosted: Wed Feb 06, 2013 3:15 pm    Post subject: Reply with quote

M8TJT wrote:
So that Alpine get all the revenue from cam database sales. Simples Rolling Eyes

+1
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r4robert
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PostPosted: Thu Feb 07, 2013 1:38 pm    Post subject: Reply with quote

Quote:
Unfortunately, Robert has not got back to us to indicate whether ie SCDB Alpine database is directional on a single carriagewayor not.
Opps, Sorry

Will report asap Embarassed
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