(57) The present invention enables efficient operations in a control system that operates
in response to a request for yarn splicing made by each of a plurality of processing
units 3, to stop one of a plurality of service carriages running along the same running
path 6, at the processing unit for yarn splicing. Work areas are assigned to yarn
splicing carriages 11, 12; for example, spinning units 3 nos. 1 to 17 are assigned
to the work area A1 of the first yarn splicing carriage 11 and spinning units 3 nos.
18 to 34 are assigned to the work area A2 of the second yarn splicing carriage 12.
If the spinning unit 3 no. 18 makes a yarn yarn splicing request, the system performs
control such that the second yarn yarn splicing carriage 12 is dispatched, which covers
the work area A2 to which the spinning unit 3 no. 18 belongs. The first yarn splicing
carriage 11 calculates the distance between the current position of the carriage 11
and the yarn splicing requesting unit (no. 18). If the distance has at most a predetermined
value, the system performs control such that the second yarn splicing carriage is
withdrawn and moved away from the yarn splicing requesting unit (Fig.1)
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