This application is a technology with regard to a device that controls a related device based on an operation situation using artificial intelligence, a schedule bot and a server that controls the same, and the device that receives a control of the related device based on the operation situation by an exemplary embodiment of this application includes a function unit that performs a physical function of the device, a communication unit that receives a time schedule and function information from a related device or a schedule management device, and control unit that controls the function unit to maintain a ready state so that a function unit performs a first function at a point that is indicated in the time schedule by using the time schedule and the function information that the communication unit receives.