Touch Screen and USB

Submitted: Wednesday, Apr 12, 2006 at 00:42
ThreadID: 32811 Views:1606 Replies:6 FollowUps:11
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Morning Team

I am planning and researching the GPS receiver that will run off the Lappy. I spend a good hour last night going though the forum and searching old threads and have come up with a good idea of what is what. The setup I will run is a 7" In-Dash VGA Touch Screen Monitor sitting in my spare din slot. The audio on the Laptop will run into the aux port of my stereo so I can play MP3's and watch the news with the USB TV tuner card I have. I will then run the wires to the Lappy that will be under the drivers seat. Now the lappy only has 1 USB port and that worries me a little because I want to run a small wireless keyboard for when I need to type something, but that will run from USB. The GPS receiver will be Bluetooth so I will need another USB port for that, so we are up to 3 USB devices already. 1) Screen.2) UBS Bluetooth receiver. 3) Keyboard. 4)USB TV Tuner. If I buy a USB hub will this fix my problem of only having the 1 USB port? the other problem I have now is that I will have heaps of wires under my chair and it might look messy.

I was thinking of running oziexplorer with the setup for when I am off the main roads and then something like nroute when I am in the city for voice navigation. I am really struggling making the connection with oziexplore and how the mapping works. I did some reading on their site and gather that you just find a map and unload it and it will show you on the map you uploaded were you are? that is the part that I don't understand how it works. The way I understand it is that I can say take a map from a 4x4 park scan it and load it into ozi and then it will show me on the screen where I am?? this does not make sense and I can't see how this will work. Maybe I have it all wrong?

what do you guys think about this setup?
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Reply By: Sand Man (SA) - Wednesday, Apr 12, 2006 at 04:43

Wednesday, Apr 12, 2006 at 04:43
G’Day Troll,

First of all, the USB port problem. Yes, by including a USB Hub you will overcome the problem re lack of available ports.

Keyboard: If you are using a Touchscreen, why do you need a Keyboard? That is the whole purpose of a Touchscreen, to eliminate the need for a keyboard.

GPS: “The GPS receiver will be Bluetooth so I will need another USB port for that”
Are you sure? You can buy a GPS CF Card, which fits in to a PC Card slot of your Laptop. This may be a better and cheaper solution for your needs, unless you require a stand-alone GPS from time to time. Check out the ExplorOz Shop.

OziExplorer: I assume you may be referring to the moving map feature of OziExplorer.
The GPS coordinates (your actual location) are displayed on the loaded map and as you travel, the map moves (scrolls) in the direction of travel, so the location is continually updated to display your position. The cursor can be set to show towards the top, bottom, or the centre of the map display.

Touchscreen: I am still “out to lunch” as to the value of a touchscreen, especially for OziExplorer. If you are only using it for the moving map feature then it is OK, but if you wish to enter a waypoint, or activate a menu icon within Ozi, then in my opinion, the display is just too small, even if using a “pick stick” instead of your finger.

I mount the touchscreen in between the front seats, above the console, but when we want to perform some function within Ozi, we usually pull out the Laptop from under the seat and place it on the navigator’s lap. Basically, a PITA.

I would recommend you check out OziExplorer on your Laptop before you lash out on other hardware you may find you don’t really need. OziExplorer is very good and you can purchase it for around $120. (Also available in the “Shop”)

Can’t help you with nRoute. I have never seen it. Just be aware that if you wish to use this, it would appear that you will be restricted to a Garmin GPS unit, rather than the GPS CF Card mentioned above.

I would recommend that you re-evaluate exactly what functionality you require from a GPS system, then research places such as www.ja-gps.com.au/gps-travroute.html and www.gpsoz.com.au/index.htm for additional information and solutions.

Bill


I'm diagonally parked in a parallel Universe!

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AnswerID: 166581

Follow Up By: Member - Troll 81 (QLD) - Wednesday, Apr 12, 2006 at 04:54

Wednesday, Apr 12, 2006 at 04:54
Thanks for the reply

In regards to the oziexplorer I guess I want to know if I say load the dodgy map they give you at landcruiser park and load it into ozi will it show me where I am driving on the GPS? So I am at the main office will that show on the Map that I loaded in on the screen that I am at the main office?

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FollowupID: 421495

Reply By: Lorne - Wednesday, Apr 12, 2006 at 05:12

Wednesday, Apr 12, 2006 at 05:12
Hi Troll
Have a look at these guys they may help with your setup
" target="EOF" class="lbg">www.bitdistribution.com.au/?g=1
www.happyg.mine.nu/carpc/index.html

That map from landcruiser well I don't think I would rely on that to much, it's more of a rough guess of where you are going.
I'm from the noosa area and we are planning on heading out there for the expo next month might see you there

Lorne........
AnswerID: 166582

Follow Up By: Member - Troll 81 (QLD) - Wednesday, Apr 12, 2006 at 05:16

Wednesday, Apr 12, 2006 at 05:16
Hi Lorne

I used to live in Noosa and most of my mates live there still. I am living in the US at the moment but we are planning a big trip out there in July when I am back. Thanks for the links as well
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Reply By: Member - Mike DID - Wednesday, Apr 12, 2006 at 06:24

Wednesday, Apr 12, 2006 at 06:24
There are two types of Maps that you can load into OziExplorer.

Map Images - i.e. JPG, TIF, BMP, PDF etc. These are just ordinary pictures. Before you can use them in OZI you need to calibrate them - tell Ozi which part of the map is which co-ordinate - it's not hard but takes time.

Maps already calibrated for Ozi - these have 2 files per map - the image file itself and a calibration file *****.map.

How accurately your postion appears on a map depends on
- map accuracy - even aerial photos need correction
- calibration accuracy - you may need 9 calibration points
- gps accuracy

Mike
AnswerID: 166586

Follow Up By: Member - Troll 81 (QLD) - Wednesday, Apr 12, 2006 at 06:53

Wednesday, Apr 12, 2006 at 06:53
That makes sense now I understand it better.Thanks Mike
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Follow Up By: The Explorer - Wednesday, Apr 12, 2006 at 10:58

Wednesday, Apr 12, 2006 at 10:58
Yes - just scanning a map and loading it into OziExplorer is only half the deal - you will then need to calibrate it using known points - the map from lancruiser park you mentioned may not have coords marked but you may be able to locate 3 or 4 points with GPS on the ground and use them....the map must be to scale also otherwise accurate calibration will be impossible. It takes a while to get the hang of, like any program, but there are lots of OziExplorer users around and help is never far away. Once you have a good library of maps its all go.
Cheers
Greg
I sent one final shout after him to stick to the track, to which he replied “All right,” That was the last ever seen of Gibson - E Giles 23 April 1874

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Follow Up By: Member - Troll 81 (QLD) - Wednesday, Apr 12, 2006 at 11:18

Wednesday, Apr 12, 2006 at 11:18
This is starting to make sense more and more now. The crusier map will not work then coz it's just hand drawing and nothing is to scale on that map.

Thanks for the help
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FollowupID: 421536

Follow Up By: Member - Mike DID - Wednesday, Apr 12, 2006 at 12:25

Wednesday, Apr 12, 2006 at 12:25
I just needs one person who will take an Aerial Photo of the place and use that to overlay the tracks on it, then calibrate it for OziE

Mike
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Follow Up By: The Explorer - Wednesday, Apr 12, 2006 at 12:29

Wednesday, Apr 12, 2006 at 12:29
Counts me out - I dont have a plane:)
I sent one final shout after him to stick to the track, to which he replied “All right,” That was the last ever seen of Gibson - E Giles 23 April 1874

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Follow Up By: Member - Mike DID - Wednesday, Apr 12, 2006 at 12:40

Wednesday, Apr 12, 2006 at 12:40
In NSW I can download Aerial Photography with enough detail to show the ventilation pipes on the roof - the Qld government may not be so enlightened.

It leaves Google for dead - but Google may allow reasonably accurate mapping if you have nothing better.

Mike
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Follow Up By: The Explorer - Wednesday, Apr 12, 2006 at 12:50

Wednesday, Apr 12, 2006 at 12:50
Yes no worries - I was being a bit silly - here in sunny WA you can purchase aerial photography of a fair bit of the state also

Site Link

It is pretty expensive to purchase ie $30 for say 3 or 4 km square area...I use it for work all the time (so someone else get s to pay)..and the good thing is it comes as a calibrated ecw (or jpg with world file) that is easily imported into OziExplorer or Arcview and away you go - perfect.

If you only need a small area and you're in a hurry you can do screen captures of the photos from the website and do some stitching/calibration - not the best but Ok for small areas.

Cheers
Greg
I sent one final shout after him to stick to the track, to which he replied “All right,” That was the last ever seen of Gibson - E Giles 23 April 1874

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Follow Up By: Member - Sam (NSW) - Wednesday, Apr 12, 2006 at 13:08

Wednesday, Apr 12, 2006 at 13:08
Troll,

As has already been stated, but just putting it differently, when the term calibrate is used in relation to files you scan in yourself, you aren't in effect touching the map image file, what is happening is that you are creating a .map file that is in essence overlayed on top of the map image by OziExplorer. Oziexplorer then uses the map image and corresponding .map file to then show you where you are on the image based on the coordinates fed to it by the GPS.

cheres,
Sam.

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FollowupID: 421571

Reply By: Member - John L G - Wednesday, Apr 12, 2006 at 12:15

Wednesday, Apr 12, 2006 at 12:15
Troll

Your problems seem to echo those of others who regularly post on this site with similar questions.

As I am also a bit challenged in these area and probablyt wanting to duplicate a similar set up as yours I wonder if it would be worth conducting some workshops in the various states so that we can all be instructed in the correct set-up, pitfalls etc.

I am sure if we contacted various trade houses, ozexplorer etc they would be more than willing to help.

Just a thought

Have fun
AnswerID: 166640

Follow Up By: Member - Troll 81 (QLD) - Wednesday, Apr 12, 2006 at 12:39

Wednesday, Apr 12, 2006 at 12:39
Not a bad idea John

I am pretty good with computers and hardware and I think once you have all the bits and pieces it will all be pretty straight forward. Only time will tell :)
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FollowupID: 421562

Reply By: Travelling Pixie - Wednesday, Apr 12, 2006 at 12:16

Wednesday, Apr 12, 2006 at 12:16
Don't USB hubs require an external power supply?

otherwise you may be drawing too much power through a single connector
AnswerID: 166641

Reply By: macandrita - Wednesday, Apr 12, 2006 at 20:23

Wednesday, Apr 12, 2006 at 20:23
Troll,
You obviously have access to the internet so you can do what I do. Get onto the gpsaustralia web site and check out the forums. www.gpsaustralia.net These guys specialise in oziexplorer. There is a free download available called Mapgrabber. It has a name search in it.
Click on name search, and type in a town name or scroll down to find the town you need. Double click on town name and click on preview. Direction key will take you to maps in the vicinity. There is a key toward the bottom which will save map and creat .map file. Save in a folder in oziexplorer. In oziexplorer with the first map opened and gps turned on and in moving map mode, your position will be displayed on the map. When the cursor reaches the edge of the map it will automatically load in the next map and continue doing so as long as you have maps for the area you are in.
I have done this for a trip from Mareeba to Townsville. You may want to unclick the find map with more detail button to avoid maps changing frequently when you approach the junction point of several maps.
I think someone on this forum has also been attacking this from a slightly different direction.
Hope this helps.
Mac
AnswerID: 166765

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