COOPERATION SYSTEM

PROBLEM TO BE SOLVED: To provide a device capable of easily replacing a mobile terminal device for performing relay between a plurality of devices.SOLUTION: A cooperation system comprises: a first portable terminal device; a cooperation device for operating in cooperation with the first portable terminal device; and a second portable terminal device that operates in cooperation with the cooperation device by means of relay performed by the first portable terminal device. The first portable terminal device, when a predetermined condition for replacing a portable terminal device performing relay between the cooperation device and the second portable terminal device is satisfied, acquires, from the second portable terminal device, authentication information to be used for establishing radio connection with the second portable terminal device and transmits the authentication information to the cooperation device. The cooperation device establishes, on the basis of the authentication information, radio connection with the second portable terminal device. The second portable terminal device, after the establishment of the radio connection with the cooperation device, performs relay between the first portable terminal device and the cooperation device. Thereby, the cooperation system can automatically replace a relay terminal device performing relay between a plurality of devices, making it possible to mitigate a burden on a user.SELECTED DRAWING: Figure 1 【課題】複数のデバイスを中継する携帯端末の変更を容易に行える装置を提供する。【解決手段】連携システムは、第１携帯端末と、第１携帯端末と連携して動作する連携装置と、第１携帯端末の中継により連携装置と連携して動作する第２携帯端末とを備える。第１携帯端末は、連携装置と第２携帯端末とを中継する携帯端末を変更する所定条件が満足した場合に、第２携帯端末との無線接続の確立に用いられる認証情報を第２携帯端末から取得して、認証情報を前記連携装置に送信する。連携装置は、認証情報に基づき前記第２携帯端末との無線接続を確立する。第２携帯端末は、連携装置との無線接続の確立後に、第１携帯端末と連携装置とを中継する。これにより、連携システムは、複数のデバイスを中継する中継端末を自動で変更でき、ユーザの負担を軽減できる。【選択図】図１