How to stop a device when light on?

Discussion in 'Homework Help' started by navaneet31, Mar 1, 2011.

  1. navaneet31

    Thread Starter New Member

    Mar 1, 2011
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    I want to make a project.In traffic signals red ,yellow,and green colours are there.When red light start glowing the device(car or bike) automatically (switch off) i.e automatically stop.i want to make that project .can any one give me the circuit diagram...
     
  2. beenthere

    Retired Moderator

    Apr 20, 2004
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    You seem to be wishing to make a device that can spot traffic control lights with absolute accuracy. This would seem to present quite a challenge - especially at night when there are many other light sources present that would make positive identification of traffic light difficult.

    When you say
    that sounds like the vehicle will stop without regard for the other traffic.

    Can you tell us how you are planning on dealing with these problems?
     
  3. navaneet31

    Thread Starter New Member

    Mar 1, 2011
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    i just want to submit as a project in my colz .Ignore disadvantages..can u help me
     
  4. Adjuster

    Well-Known Member

    Dec 26, 2010
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    This problem would require more than a "circuit diagram" for its solution. Correct recognition of visual cues by a machine in an uncontrolled environment is a subject for advanced research. Some people are sceptical about the degree to which this will ever be possible.
     
  5. navaneet31

    Thread Starter New Member

    Mar 1, 2011
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    0
    else when a signal is sent it will recieve by the reciever then the motor will stops.Is it possible
     
  6. t06afre

    AAC Fanatic!

    May 11, 2009
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    It is possible to make this setup in a controlled setting. Like in your school lab. But for a real world setting. Not very likely.
    By the way what is "colz", and is this a school project
     
  7. navaneet31

    Thread Starter New Member

    Mar 1, 2011
    4
    0
    k
    give me the circuit and necessary details..plzzzzzzzz
     
  8. Kermit2

    AAC Fanatic!

    Feb 5, 2010
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    give me

    give me
    give me

    gimme gimme gimme

    I don't know of anyone besides the IRS for which this approach works
     
  9. Georacer

    Moderator

    Nov 25, 2009
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    You could use a photoresistor. With correct calibration under a controlled environment, you could distinguish red and green.

    I emphasise on controlled environment.
     
  10. blueroomelectronics

    AAC Fanatic!

    Jul 22, 2007
    1,758
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    Can I contact your instructor? I'd like to get credit for my work.
     
  11. cumesoftware

    Senior Member

    Apr 27, 2007
    1,330
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    Good one! Well said!
     
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