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Apparatus for monitoring operator vibration for earth moving machinery with operation cab

  • US 20070038354A1
  • Filed: 07/06/2006
  • Published: 02/15/2007
  • Est. Priority Date: 08/11/2005
  • Status: Active Grant
First Claim
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1. In an earth moving machinery having an operation seat in an interior of an operation cab installed at an upper frame of a lower running body, the apparatus for monitoring an operator vibration for an earth moving machinery with an operation cab, comprising:

  • an operation seat which is installed in an interior of the operation cab and which includes an accelerometer for sensing and converting acceleration into a 3-axis channel vibration signal;

    a vibration measuring device which is installed in a lower side of the operation seat and which measures a 3-axis vibration in real time by receiving the 3-axis channel signal and outputs an 3-axis vibration value based on the measured vibration;

    an electronic control unit which is installed between the operation seat and the vibration measuring device and which computes a mean vibration value and an impact vibration value generated in a predetermined time interval by receiving the 3-axis vibration value and outputs vibrations of ELV; and

    a display device which is installed in an interior of the operation cab and which displays the ELV on a LCD screen in real time, so that an operator easily monitors the ELV through the LCD screen.

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