| abstract |
A device control system including a wearable device and a server (400). The wearable device includes a device that ejects a fragrance material (S124), a biological sensor (101), and a computer (102, 201, 401, 501). The computer (102, 201, 401, 501) transmits biological data to the server (400), receives a first control signal (S112), and causes the device to eject a fragrance material (S124) upon receipt of the first control signal (S112). The server (400) includes a computer (102, 201, 401, 501). The computer (102, 201, 401, 501) receives the biological data, estimates user's emotion from the received biological data (S106), and in a case where it is determined that the user has positive emotion by using a result of the estimation, (i) transmits the first control signal (S112) to the wearable device and (ii) transmits, to an aroma device, a second control signal (S116) for causing the aroma device to eject a fragrance material (S124) at a predetermined timing (S114, S115). |