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Article Transport Facility

  • US 20130275045A1
  • Filed: 04/09/2013
  • Published: 10/17/2013
  • Est. Priority Date: 04/11/2012
  • Status: Active Grant
First Claim
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1. An article transport facility comprising:

  • an article transport vehicle configured to travel by an operation of a travel actuating device and along a travel path extending by way of a plurality of article transfer locations;

    a ground side travel controller which issues a travel command to the article transport vehicle;

    a vehicle side travel controller which is provided to the article transport vehicle, and which controls operation of the travel actuating device based on detected information from a travel position detector which detects a travel position of the article transport vehicle,wherein the vehicle side travel controller is configured to control operation of the travel actuating device based on travel position information detected by the travel position detector and travel command information from the ground side travel controller in order to cause the article transport vehicle to travel along the travel path toward a target travel position at a target travel speed;

    a position detector provided on a ground side for detecting a position of an interfering object that exists in a detection target area which includes an area in which the travel path is installed; and

    an external managing device which issues a deceleration command to the article transport vehicle if and when the position of the interfering object with respect to the article transport vehicle is in a low speed area, which is determined in advance with respect to the position of the article transport vehicle, based on position information of the interfering object from the position detector and travel position information of the article transport vehicle;

    whereinthe vehicle side travel controller is configured to change the target travel speed from the normal travel speed to a reduced travel speed which is less than the normal travel speed if and when the deceleration command is issued from the external managing device while the target travel speed is set to the normal travel speed.

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