MAIN SERVER FOR PROVIDING FACILITY AVAILABILITY INFORMATION, FACILITY SERVER, AND SYSTEM FOR PROVIDING FACILITY AVAILABILITY INFORMATION USING IT

摘要

PROBLEM TO BE SOLVED: To provide the availability information of a facility at the present time in real time. SOLUTION: A main server 10 is connected to facility servers 20 through the Internet N. The facility server 20 set in each facility transmits the availability information of the facility at the present time in real time. The main server 10 updates and stores the availability information of each facility in a database 11, retrieves the database 11 when the access from an optical user terminal 31 is received, and transmits the availability information of the facility matched to the retrieval condition to the user terminal 31.