To provide a means capable of installing easily an auto-door without requiring a cost of a high level at once time to be reserved by a person who desires the installation of the auto-door.
A maker 1 concludes an agreement for an auto-door using frequency-proportional charging system article 2 with a customer 3 therebetween, as one article for sale of the auto-door 10, and installs the auto-door 10 gratuitously. The maker 1 data-transmits a count data of a counter 20 to a center terminal 51 of a centralized control center 50 using a communication line from the counter 20 for reading a drive command of a controller 12 for controlling a drive 13 of the auto-door to be collated with a maintenance fee table set in response to the frequency of door opening and closing, and transmits an account 53 and usage details 54 to the customer 3.
TAKASAKI TOSHIO
ABE NAOKO
HAYASHI TAKASHI
KONDO YASURO
YAMAMOTO KOJI
HIGASHIDA KAZUO