Device control system

A device control system comprising:

• a device to be controlled;
• a wearable device to acquire biometric information on a user;
• a management server to generate an operating condition of the device to be controlled;
• and
• a plurality of controllers each of which is connected to one or more of the devices to be controlled which are previously associated with the controllers, and is capable of acquiring the biometric information from the wearable device located within a communication range of short-range wireless communication thereof, each of the controllers being configured to transmit the acquired biometric information to the management server, wherein
• when receiving the biometric information from one of the controllers, the management server authenticates the user of the wearable device, generates the operating condition based on personal data indicating a preference of the authenticated user and the biometric information, and transmits the generated operating condition to the one of the controllers, and
• when receiving the operating condition from the management server, the one of the controllers generates a control signal for controlling the associated device(s) to be controlled based on the received operating condition, and transmits the generated control signal to the device(s) to be controlled previously associated with the one of the controllers.