Travelling vehicle system

摘要

A travelling vehicle system additionally sets a waiting point such that a number of waiting points is equal to a number of empty travelling vehicles present on a travelling route upon detection of an empty travelling vehicle. The system searches a route from a start point to an end point when the additionally set one waiting point is taken as the start point and a position of one empty travelling vehicle is taken as the end point, the one empty travelling vehicle being detected by a detection portion and not waiting at the waiting point. The system allocates to the other empty travelling vehicle the travelling command to move to the one waiting point and allocates to the one empty travelling vehicle the travelling command to move to the other waiting point which becomes empty by movement of the other empty travelling vehicle.

主权项

1. A travelling vehicle system comprising:
a predetermined one-way travelling route; a plurality of travelling vehicles that travel along the travelling route; and a controller that allocates a travelling command to each of the travelling vehicles; wherein the controller is configured or programmed to include:
a detection portion that detects presence or absence of an empty travelling vehicle not loaded with an object to be conveyed;a setting portion that additionally sets a waiting point such that a number of waiting points is equal to a number of the empty travelling vehicles present on the travelling route upon detection of the empty travelling vehicle by the detection portion, the waiting point being a point at which the empty travelling vehicle is made to wait on the travelling route;a route searching portion that searches a route from a start point to an end point when one waiting point additionally set by the setting portion is taken as the start point and a position of one empty travelling vehicle is taken as the end point, the one empty travelling vehicle being detected by the detection portion and not waiting at the waiting point; anda travelling command allocation portion that allocates to the one empty travelling vehicle the travelling command to move to the one waiting point along the route when the other empty travelling vehicle is not present in the route searched by the route searching portion, or allocates to the other empty travelling vehicle the travelling command to move to the one waiting point and allocates to the one empty travelling vehicle the travelling command to move to the other waiting point which becomes empty by movement of the other empty travelling vehicle when the other empty travelling vehicle waiting at the other waiting point is present in the route searched by the route searching portion.