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Method For Controlling Movement Of Travelling Carriers

  • US 20130282168A1
  • Filed: 06/20/2013
  • Published: 10/24/2013
  • Est. Priority Date: 02/02/2011
  • Status: Active Grant
First Claim
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1. A method for controlling movement of travelling carriers in conveying equipment where variable-moving-speed, self-propelled travelling carriers move on their own at a fixed low operating speed in a work area within a moving path for the travelling carriers while maintaining continuous motion in a moving direction and where travelling carriers approach the work area at a high speed, the method comprising:

  • providing each of the travelling carriers with data communication means to perform data communication between front and rear adjacent travelling carriers;

    setting a measurement starting point upstream of the work area in the moving path;

    providing current location information corresponding to distances from the measurement starting point to a rear travelling carrier approaching the work area at a high speed and to a front travelling carrier immediately thereahead moving at the operating speed;

    the rear travelling carrier calculating a following distance between the front travelling carrier and the rear travelling carrier based on the current location information of the front and rear travelling carriers;

    the rear travelling carrier performing deceleration control based on decremental changes of the following distance; and

    controlling the rear travelling carrier such that the rear travelling carrier moves on its own at the operating speed at a time of docking completion when the following distance reaches a set value.

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