To enable general monitoring of equipment and selection of equipment to be managed by a center-side system by eliminating regulations for electronic information to be transmitted and received by the Internet or restrictions of expression contents.

A plurality of pieces of equipment that are monitoring objects and a store management device collecting information for the equipment are connected to a store-side LAN of a store-side system, and communication is performed with the Internet through a store-side router having VPN function. Meanwhile, a database server communicating with a store management device through a center-side router and storing information for equipment or management information for each store, an application server collecting information for authentication of the equipment to be managed and information for the equipment to be managed and storing them in the database server, and a terminal for displaying or changing information stored in the database server are connected to a center-side LAN in a center-side system.