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Thread: Mobile video in California

  1. #31
    I'm sorry, and you are....? frodobaggins's Avatar
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    Quote Originally Posted by rando
    Ive already suggest to Frodo that he add an option to disable video/apps based upon some external input. From there a simple circuit would allow you to tap your ebrake, park/neutral switch, brake lights, or whatever to implement the required interlocking device.

    Then again, if the source were available, I'd be willing to implement this feature. I don't think it would be terribly difficult to code.

    Someone give me a schematic for a device that will turn a serial
    port pin high and I will code it in.

    Frodo
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  2. #32
    Maximum Bitrate Bravellir's Avatar
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    Quote Originally Posted by frodobaggins
    Someone give me a schematic for a device that will turn a serial
    port pin high and I will code it in.

    Frodo
    That would be great.
    There are how ever software only solutions.
    Even if where I live we do not have that kind of laws, my guess is that sooner or later they will show up ,
    So my idea was to design a skin where some of the buttons where transparent, so, the video button is there, you can click it, but it would be invisible.
    The other, with the developers collaboration , was to implement a way to boot strait to one application, audio, rear camera or gps, and when you returned to the main menu you would be asked for a passcode. if you key in passcode A the menu would only have the "Right" options, if you key in the passcode B the menu would show up with all the options.

    What do you think??

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  3. #33
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    Microsoft has a PowerToy application called Virtual Desktop Manager for Windows XP. It can be used to switch between multiple desktops. A nice little app if I might add.

    http://www.microsoft.com/windowsxp/p.../powertoys.asp

  4. #34
    MySQL Error Scouse Monkey's Avatar
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    Quote Originally Posted by frodobaggins
    Someone give me a schematic for a device that will turn a serial
    port pin high and I will code it in.

    Frodo
    I think this would be the best idea, you could possibly use something like this: http://www.modasylum.com/guides.php?guide=21&page=0 to connect with the serial or a even a push button connected to your joystick port (or joystick-usb connector) and then either use girder to send a signal to the software (e.g. fp) or have the software pic up the signal directly. It would be nice if when the switch was open (e.g. handbrake off) the software could pop up a window saying "Not Available" with a no entry sign or something or switch to an alternative DVD mode that doesnt actually work and is kind of greyed out with something like "disabled" overlayed. That would address the demonstrating to police that you have it dissabled issue.

    Of course you could set up the switch to be open when the handbrake is on/car in park then add an on/off switch in series to stop the deactivating switch from completing the circuit when you are driving round and have this hidden somewhere you can press it easily.

    Andy

  5. #35
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    Just change the input to something other than VGA, and then tell the officer that it is not yet working and not finished. You merely had the backlight on to check for glare issues, or something like that.

  6. #36
    Raw Wave rando's Avatar
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    Quote Originally Posted by frodobaggins
    Someone give me a schematic for a device that will turn a serial
    port pin high and I will code it in.

    Frodo
    The serial port is a bit less convenient to interface than the parallel port. Can you just assume the DTR line triggers the software? When the line is high/low (user configurable) the software should disable certain features (user configurable perhaps also), and also stop those same features if they are currently in use (i.e. stop any playing video). Otherwise the software behaves as normal.

    People would then be free to develop whatever schematic is appropriate for the switching mechanism in their vehicles.

    For software developement / testing, you might consider using a simple com port loop back (either virtual or real). This would give you programatic control over the DTR line.

    In the real world, there are several ways to build a circuit. Here is a simple one with parts you should be able to get at radio shack. I haven't tested this and it might need some tweeking but demonstrates how easily the circuit could be developed. Maybe someone with more EE skillz than I can come up with something better/simpler.

    UPDATE: THIS DOESN'T WORK --- DON'T USE IT
    7912: -12V Linear regulator
    7812: 12V Linear regulator

    ** Pull DTR to -12V - Logic High **
    ACC--7912IN
    7912OUT--100K_Resistor---DTR
    GND--7912GND

    ** Pull DTR to +12V - Logic Low When Park Switch is closed
    ACC--PARK SWITCH--7812IN
    7812OUT---DTR
    GND--7812GND
    UPDATE: THIS DOESN'T WORK --- DON'T USE IT

  7. #37
    Constant Bitrate b_nom's Avatar
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    Law in Texas

    This is what the law says in texas, they just passed this on september 2003. the bill is SB 209

    AN ACT


    relating to prohibiting a motor vehicle from being equipped with
    certain video equipment and devices.
    BE IT ENACTED BY THE LEGISLATURE OF THE STATE OF TEXAS:
    SECTION 1. The heading to Section 547.611, Transportation
    Code, is amended to read as follows:
    Sec. 547.611. USE OF CERTAIN VIDEO EQUIPMENT AND TELEVISION
    RECEIVERS [PERMITTED].
    SECTION 2. Subsections (a) and (c), Section 547.611,
    Transportation Code, are amended to read as follows:
    (a) A motor vehicle may be equipped with video receiving
    equipment, including a television [and similar equipment], a
    digital video disc player, a videocassette player, or similar
    equipment, only if the equipment is located so that the video
    display is not visible from the operator's seat.
    (c) This section does not prohibit the use of:
    (1) equipment used:
    (A) exclusively for receiving digital
    information for commercial purposes;
    (B) exclusively for a safety or law enforcement
    purpose, if each installation is approved by the department; [or]
    (C) in a remote television transmission truck; or
    (D) exclusively for monitoring the performance
    of equipment installed on a vehicle used for safety purposes in
    connection with the operations of a natural gas, water, or electric
    utility; or
    (2) a monitoring device that:
    (A) produces an electronic display; and
    (B) is used exclusively in conjunction with a
    mobile navigation system installed in the vehicle.
    SECTION 3. (a) This Act takes effect September 1, 2003.
    (b) The change in law made by this Act applies only to an
    offense committed on or after September 1, 2003.
    (c) An offense committed before September 1, 2003, is
    covered by the law in effect when the offense was committed, and the
    former law is continued in effect for that purpose. For purposes of
    this section, an offense was committed before September 1, 2003, if
    any element of the offense was committed before that date.

    You can find it here
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  8. #38
    Raw Wave rando's Avatar
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    That looks a bit more restrictive than CA.

  9. #39
    Maximum Bitrate eCarô's Avatar
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    Quote Originally Posted by rando
    The serial port is a bit less convenient to interface than the parallel port. Can you just assume the DTR line triggers the software? When the line is high/low (user configurable) the software should disable certain features (user configurable perhaps also), and also stop those same features if they are currently in use (i.e. stop any playing video). Otherwise the software behaves as normal.

    People would then be free to develop whatever schematic is appropriate for the switching mechanism in their vehicles.

    For software developement / testing, you might consider using a simple com port loop back (either virtual or real). This would give you programatic control over the DTR line.

    In the real world, there are several ways to build a circuit. Here is a simple one with parts you should be able to get at radio shack. I haven't tested this and it might need some tweeking but demonstrates how easily the circuit could be developed. Maybe someone with more EE skillz than I can come with something better/simpler.

    7912: -12V Linear regulator
    7812: 12V Linear regulator

    ** Pull DTR to -12V - Logic High **
    ACC--7912IN
    7912OUT--100K_Resistor---DTR
    GND--7912GND

    ** Pull DTR to +12V - Logic Low When Park Switch is closed
    ACC--PARK SWITCH--7812IN
    7812OUT---DTR
    GND--7812GND
    Are you guys talking about just putting this in Frodoplayer? Or can you make an app that keeps any player (WMP specifically) from playing video?

    I'm not too smart. But, I was thinking there is some way to disable "Video Overlay"? If that is the right term. I guess the app would have to be made to work with a specific video card then?

  10. #40
    Constant Bitrate b_nom's Avatar
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    Thumbs down Ab 301

    Quote Originally Posted by rando
    That looks a bit more restrictive than CA.
    And here is the law in Cali:

    Assembly Bill No. 301
    CHAPTER 303
    An act to amend Section 27602 of the Vehicle Code, relating to
    vehicles.
    [Approved by Governor September 4, 2003. Filed
    with Secretary of State September 5, 2003.]
    LEGISLATIVE COUNSELíS DIGEST
    AB 301, Reyes. Vehicles: video displays.
    (1) Existing law prohibits any person from driving a motor vehicle
    that is equipped with a television receiver, screen, or other means of
    visually receiving a television broadcast, if the device is located in the
    motor vehicle at any point forward of the back of the driverís seat, or is
    visible to the driver while operating the motor vehicle. This prohibition
    does not apply to a mobile digital terminal installed in a law enforcement
    vehicle.
    This bill would recast this prohibition and, additionally, would
    prohibit any person from driving a motor vehicle if a video monitor, or
    a video screen, or any other, similar means of visually displaying a video
    signal that produces entertainment or business applications, is operating
    and is located in the motor vehicle at any point forward of the back of
    the driverís seat, or is operating and visible to the driver while driving
    the motor vehicle. This prohibition would not apply to specified
    equipment or to a motor vehicle providing emergency road service or
    roadside assistance. Because a violation of this prohibition would be a
    crime, the bill would establish a state-mandated local program.
    (2) The California Constitution requires the state to reimburse local
    agencies and school districts for certain costs mandated by the state.
    Statutory provisions establish procedures for making that
    reimbursement.
    This bill would provide that no reimbursement is required by this act
    for a specified reason.
    The people of the State of California do enact as follows:
    SECTION 1. Section 27602 of the Vehicle Code is amended to read:
    27602. (a) A person may not drive a motor vehicle if a television
    receiver, a video monitor, or a television or video screen, or any other,
    similar means of visually displaying a television broadcast or video
    signal that produces entertainment or business applications, is operating
    Ch. 303 ó2ó
    93
    and is located in the motor vehicle at any point forward of the back of
    the driverís seat, or is operating and visible to the driver while driving
    the motor vehicle.
    (b) Subdivision (a) does not apply to the following equipment when
    installed in a vehicle:
    (1) A vehicle information display.
    (2) A global positioning display.
    (3) A mapping display.
    (4) A visual display used to enhance or supplement the driverís view
    forward, behind, or to the sides of a motor vehicle for the purpose of
    maneuvering the vehicle.
    (5) A television receiver, video monitor, television or video screen,
    or any other, similar means of visually displaying a television broadcast
    or video signal, if that equipment has an interlock device that, when the
    motor vehicle is driven, disables the equipment for all uses except as a
    visual display as described in paragraphs (1) to (4), inclusive.
    (c) Subdivision (a) does not apply to a mobile, digital terminal
    installed in an authorized emergency vehicle or to a motor vehicle
    providing emergency road service or roadside assistance.
    SEC. 2. No reimbursement is required by this act pursuant to
    Section 6 of Article XIII B of the California Constitution because the
    only costs that may be incurred by a local agency or school district will
    be incurred because this act creates a new crime or infraction, eliminates
    a crime or infraction, or changes the penalty for a crime or infraction,
    within the meaning of Section 17556 of the Government Code, or
    changes the definition of a crime within the meaning of Section 6 of
    Article XIII B of the California Constitution.

    find it here (pdf file)
    '96 Chevy Cavalier - EPIA M10000, Win2K,MediaCar, Deluo GPS Mouse with Routis, 60GB external HD, 7" widescreen monitor from DigitalWW.

    '00 Jeep Wrangler - planning stage


    What can BROWN do for you?

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