ON-VEHICLE DEVICE, VEHICLE SYSTEM AND PROGRAM

PROBLEM TO BE SOLVED: To identify more easily, a wearable device which a driver wears.SOLUTION: An on-vehicle device comprises: a vehicle signal acquisition part 402 which is used on a vehicle, and acquires a lateral part G of a vehicle; a communication part 401 which performs communication with a wearable device being worn to an arm of a user and measuring an arm G generated on the user's arm; and a wearing determination part 403 for comparing the lateral part G of the vehicle acquired by the vehicle signal acquisition part 402, with the arm G of the user received on the communication part 401 from the wearable device, for determining whether or not, the driver wears the wearable device.SELECTED DRAWING: Figure 4 【課題】ドライバが装着しているウェアラブルデバイスをより容易に特定することを可能にする。【解決手段】車両で用いられ、車両の横Ｇを取得する車両信号取得部４０２と、ユーザの腕に装着されて、ユーザの腕に生じる腕Ｇを計測するウェアラブルデバイスと通信を行う通信部４０１と、車両信号取得部４０２で取得した車両の横Ｇと、ウェアラブルデバイスから通信部４０１で受信したユーザの腕Ｇとを比較して、ウェアラブルデバイスをドライバが装着しているか否か判定する装着判定部４０３とを備える。【選択図】図４