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Embedded and Microcontrollers
Embedded Forum Help with sensor and data collection
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Forum Thread Details
  • Replies 5 replies
  • Subscribers 488 subscribers
  • Views 581 views
  • Users 0 members are here
  • distance
  • rangefinder
  • dac
  • measurement
  • adc
  • laser
  • sensor
  • ultrasonic
Related

Help with sensor and data collection

aditya_g8
aditya_g8 over 14 years ago

Hi Guys,

I am working with a project where I need to detect objects at a distance of 15 feet from the sensor location, the sensor rotates about 180 degree to detect multiple objects, constraints for the sensor are,

Has to be reliable, some rate of failure is acceptable but not not much,

Has to be really cheap as I need to impliment at-least 1000 of these for a single project, so something under20$,

It needs to have a  assembly to rotate the sensor in 180 degree and be very accurate with positions as in the 180 degree range I just need to detect objects at 5 spots.

 

I am looking for laser range finder with serial interface, but in vain also I am looking for good ultra-sonic sensors.

But laser distance unit is the best but no-one sems to sell them, but there are really cheap laser-distance sensing devices available.

Also I am looking for an assembly to be accurate with the sensor motor thing to rotate it accurately.

Can anyone guide me to a good sensor module, I don't wish to make the sensor from scratch!

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  • Former Member
    Former Member over 14 years ago

    How about this?

    http://www.philohome.com/sensors/lasersensor.htm

    Seems to be well described, it's what I first thought of, any cheap laser pointer and an easy method of laser 'spot' detection.

     

    I think range and reliability on ultrasound will be a real challenge. There's a good recent tutorial on a Parallax ultrasound unit here:

    http://tronixstuff.wordpress.com/2011/11/28/tutorial-parallax-ping-ultrasonic-sensor/

     

    Cheers,

    Marc

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  • Former Member
    Former Member over 14 years ago

    How about this?

    http://www.philohome.com/sensors/lasersensor.htm

    Seems to be well described, it's what I first thought of, any cheap laser pointer and an easy method of laser 'spot' detection.

     

    I think range and reliability on ultrasound will be a real challenge. There's a good recent tutorial on a Parallax ultrasound unit here:

    http://tronixstuff.wordpress.com/2011/11/28/tutorial-parallax-ping-ultrasonic-sensor/

     

    Cheers,

    Marc

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