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  • What ild wana do....

    Hi ive been reading the board for awhile now! I just wanted to ask this question becuase i dont seem to have any answers anywhere...

    I want my carputer to do the following...
    unlock any doors by a keypad(remote or on the doors)
    start the ignition, and the car
    stop the ignition
    turn on off lights(eg headlights)
    lock unlock doors, windows, turn on off ac/heater
    be programable to allow for the following (eg everymorning at 8:30 unlock the doors, turn the car on and start the heater)

    this is ontop of ODB support (if its compatable with linux)
    ill drop navigation for linux, thats not a problem
    as far as everything else i know linux has support for it (like dvds, mplayer, mp3s etc)

    I dont however know about GPS, although i dont need turn by turn navigation, ild like to have a gps installed anyways, because its only a matter of time, and i can probibly use yahoo maps or somthing if i need directions (assuming that gps gives you the exact location you can use, i can probibly do somthing with php and mapquest or whatever)

    So, now, is this possible? i want it to be secure(which i can do, its the unlocking part that im not sure off, lol), not kill the battery, and be almost instant in start ups (im talking like if im walking to my car, push a button is fine, and within 5 seconds from that....)


    Now i figure i could (if needed) use a seperate module, interfacable to the computer that can start the car, igniton and locks, it would be like a security box, allowing me to start the car as fast as possible, without waiting for the computer to boot. and with the proper interface would allow the computer to control it upon boot (maybe this has been done?)


    I see alot of talk but i want to make a deterimation of this is going to be a lilkley solution. my ignitons torn all to hell right now and i want a carputer, so, why not

    any help from any perspective (as to possible problems, likley hood of being able to do what i wana do) all that would be greatly appriceated, as you can probibly gather im only certian of a few problems.. so i need help from you experienced type:-D
    Carputer Status: 10%
    Have: Dell L400 (700Mhz 32?RAM, 20Gig HD), 7" Newvision, Pioneer DVDRW/CDRW via USB
    Need: Amp.

  • #2
    Yes, it's all possible. You'll need additional hardware and software for the physical funtions (doors, windows, lights, etc.).

    Be aware that in order for the computer to do what you want, it's going to have to stay on all the time. That could very well drain your battery, which in turn shut off the computer. If the computer is the only means of entry into the vehicle, you'd be a little bit screwed in that scenario.

    You might be able to get extremely low-power components (AMD Geode comes to mind) that would enable the computer to be on for longer periods of time without draining the battery.

    If you want instant start-up, you're going to need ti investigate embedded hardware. Even the fastest computers need to POST and load an OS. Embedded hardware would speed that up, since everything is loaded onto ROMs (oversimplified explanation).
    Have you looked in the FAQ yet?
    How about the Wiki?



    Under normal circumstances, a signature would go here.

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    • #3
      Get an alarm and let it do the job that a computer shouldn't be doing (windows, locks, starting, etc.) and let the computer do the multimedia/gps stuff. The amount of money you spend on trying to a) interface the computer with mechanical systems and b) getting the pc to stay on all the time plus the associated components like an extra battery and super low power consumption devices) will be better spent on a nice alarm and a nice carpc IMHO.
      My Worklog

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      • #4
        Thanks for the input as usual im going to have to keep looking

        for the record, im open to the possibility of having another box control the alarm, windows doors etc, and be interfaced to the computer (which actually seems like a better solution, being able to program what to do when you get there from the computer, and use an alarm style button to start the car... hmmmm


        back to thinking i guess, :P
        Carputer Status: 10%
        Have: Dell L400 (700Mhz 32?RAM, 20Gig HD), 7" Newvision, Pioneer DVDRW/CDRW via USB
        Need: Amp.

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        • #5
          Yea, I agree with the above.... get a decent alarm that has some extra interfacing options and use the alarm to start the car and start the computer.
          Nick
          '99 Ford Escort ZX2 CarPC <-- RIP Feb '07

          2006 Chevy Equinox LS (Current Project)

          **VIA EPIA PD 1ghz Mobo, OPUS 150, 7" LinITX LCD touchscreen, 512 Ram, 60Gig HD, DLink Bluetooth, Belkin 802.11g wireless,

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          • #6
            I'm not saying it wouldn't be "doable." You could certainly use something like Phidgets to interface to all the physical systems. Doing that would be quite cool, it's just trying to power the computer all the time would be a beyatch. If there are alarms that have some sort of rs-2323 interface so that you could get a status and possibly change the status of something, it would serve the purpose quite nicely. How cool would it be to apply a "scene" to your car? For example, roll down the front two windows, open the sunroof, and start playing some Frank Sinatra with the touch of one button?
            My Worklog

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            • #7
              I wanna do a 1 ghz fanless 6W NX1500...
              The only problem is the lack of motherboards in the proper size at the proper price...
              To do it right (the first time) it has to be mini-ITX. I just haven't found a supplier. Any ideas?
              <SOLD>
              ATi RS485 AMD S939 Venice 2GHz (Yes, I had a A64 in my car!)

              CURRENT
              Jetway J7F3E-PB Geode NX1750, 512M, 120G 2.5" SATA HDD, Sony slim combo drive, Lilliput 7"touchscreen, 60G external WD, GPS, WiFi, mini-keyboard

              Comment


              • #8
                I personally think you would be better off starting your own topic, instead of tacking it on to an old one, i say this for 2 reasons. One the subject dosnt likley match your question, so people who would have respnoded to your question, may not see it.

                second sombody searching or googling for your question, and the answer to it, will be directed to the top of this post, which is not only annoying but confusing.
                Carputer Status: 10%
                Have: Dell L400 (700Mhz 32?RAM, 20Gig HD), 7" Newvision, Pioneer DVDRW/CDRW via USB
                Need: Amp.

                Comment


                • #9
                  Solution

                  I've read these posts before but never answered, I added myself today cuz I saw noone had a good answer.

                  Get an extra battery, like an Optima Yellow. Take the extra battery and hide it somewhere, depending on the car, there's always somewhere to hide it, or maybe remove stock intake, add aftermarket, and put it under the hood. Maybe a custom bracket somewhere. What car is this for?

                  Leave the stock battery for the vehicle and connect this one for all your additional electronics (amps, lights, w/e you're into, etc.) that doesn't need a constant power source.

                  Ground doesn't matter, but rig the positive to your electronics (ie. the computer), and another positive wire to the other battery with a relay in between (has to be a high amperage relay). The trigger for the relay can either go to the alternator, ignition, or anything that turns on when the car is started. I'll explain the reason later.

                  Now since your PC will cover remote starting, you setup a voltage monitor on your aux. battery that tells your machine the voltage on the battery.

                  How it all comes together:
                  When the voltage on the aux. battery drops to a certain point(that you specify), the computer remote starts the car. When the car starts the relay is triggered allowing the alternator to charge your battery. The reason you separate the batteries with the relay is so that the aux. doesn't drain the stock battery allowing the car to start.(If not, they'll drain evenly). After the car runs for a set amount of minutes it shuts off. (I'd give it a time frame as the monitor will have a false reading while the car is running, it'll be reading from the entire circuit incl. other battery and alt.) I can't think of an easy way to tell when the battery is fully charged.

                  That'll do it. The only thing is, you'd want to keep a log of how ofter the car is starting. Then either monitor the log once in a while, or write a small application that does it for you and will alert if if anything is wrong or going bad. This way, you'll know in advance when any problems arrive.

                  Hope it helps!

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                  • #10
                    Originally posted by Gortok
                    I wanna do a 1 ghz fanless 6W NX1500...
                    The only problem is the lack of motherboards in the proper size at the proper price...
                    To do it right (the first time) it has to be mini-ITX. I just haven't found a supplier. Any ideas?
                    I came across a couple Geode boards I think I posted links to them in a thread over in hardware. Ibase sells them, MB740 is the model number. There is an older board as well that uses VIA north and south bridges and the newer boards that use SiS chipsets, MB740 and DB1500.
                    http://www.ibase-i.com.tw/mb740.htm
                    http://www.globalamericaninc.com/new...ec2.php?id=544
                    http://www.globalamericaninc.com/new...40-s241885.htm
                    http://www.epiacenter.com/modules.ph...howpage&pid=88, althought I had a hard time finding a place that sold the DB1500 to the end user. Link below has a price of $649 which is just a stupid price and I would much rather have the MB740 for less than half.
                    http://www.logicpd.com/eps/sbc/amd/geode_nx/

                    The two lower end Geode processors use 6w avg and 9w under full load. The top end processor uses 14w avg and 25w under full load. Finding processors is another chalenge I can find the Geode 1750 pretty easily bundled with a micro atx motherboard for around $80-$100 and there is one NX 1750 processor on ebay for $53 right now. Haven't found the other lower end NXs for sale, but I haven't really looked either.

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                    • #11
                      Yeah, But my whole thing is how long with the battery last, If it for example dosnt charge in 15 minutes, which is my average commute to and from work. The car will have to start outside of that, which is soppsoed to be reserverd for when i cant do anything about it. More then likley ill buy a little generator for this purpose though, and put another gas tank in the car for it, maybe a 2 gallon tank. (this seams more reasonable, espically considering the price of fuel.


                      Now if 15 or so minutes will charge the battery, how long will the computer work for?

                      Also i've thought of a better idea, im going to use a passive radio (like those walmart alarm stickers) for my car to know its me, when i try to open a door, a switch will be triggerd, and if the correct responce is returned, then my car will unlock and open the door, this makes me not need keys, maybe a little charm necklace, or a watch can carry it (they can be quite small)

                      Thanks for your help in this

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                      • #12
                        I'll do this one day.

                        (When the prices drop. )

                        But, to answer your question...15 minutes is plenty of time to recharge when you are using so little...
                        <SOLD>
                        ATi RS485 AMD S939 Venice 2GHz (Yes, I had a A64 in my car!)

                        CURRENT
                        Jetway J7F3E-PB Geode NX1750, 512M, 120G 2.5" SATA HDD, Sony slim combo drive, Lilliput 7"touchscreen, 60G external WD, GPS, WiFi, mini-keyboard

                        Comment

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