Pairing system for remotely managing hot-water utilization facility and communication adapter used in system

摘要

A communication adapter for collecting various kinds of information from a water-heating system and providing the information to an administration center via a wireless LAN router functions as an access point for providing a direct wireless communication with a smartphone; in response to a request from the smartphone via the direct wireless communication, it provides pairing authentication information to the smartphone; in response to a request from the smartphone, it initializes the wireless LAN connection information for the wireless LAN router to disconnect the wireless link to the wireless LAN router; and, when the wireless LAN connection information is set by its WPS function, it establishes a wireless link to the wireless LAN router and transmits the pairing authentication information to the administration center via the wireless LAN router.