Abstract: A playback device including a housing, an audio player, a sound insulation cover, a target detection apparatus, and a driving mechanism. A sound hole is disposed on the housing, the sound insulation cover is disposed in the housing, the audio player is disposed in the sound insulation cover, a sound outlet is disposed on the sound insulation cover, the target detection apparatus is configured to detect a target direction, the driving mechanism is connected to the sound insulation cover, and in a case that the sound outlet does not face the target direction, the driving mechanism is controlled to start, and the driving mechanism drives the sound insulation cover to rotate, so that the sound outlet faces the target direction. This application discloses a control method for a playback device, a control apparatus for a playback device, and a computer-readable storage medium.

Abstract: A method for controlling a variable refrigerant flow (VRF) system includes applying a time window to sensor data associated with the VRF system, the sensor data including input data points and having a first resolution, wherein applying the time window to the sensor data isolates a subset of the input data points; applying a timing weight to one or more input data points in the subset of the input data points to generate corrected data points having a second resolution higher than the first resolution; creating a virtual sensor and mapping the corrected data points to an output of the virtual sensor; and controlling the VRF system based on an output of the virtual sensor. The use of virtual sensors with a higher resolution than corresponding physical sensors in this manner allows for existing physical sensors to be used while improving performance of the VRF system.

Abstract: A method for controlling a variable refrigerant flow (VRF) system includes applying a time window to sensor data associated with the VRF system, the sensor data including input data points and having a first resolution, wherein applying the time window to the sensor data isolates a subset of the input data points; applying a timing weight to one or more input data points in the subset of the input data points to generate corrected data points having a second resolution higher than the first resolution; creating a virtual sensor and mapping the corrected data points to an output of the virtual sensor; and controlling the VRF system based on an output of the virtual sensor. The use of virtual sensors with a higher resolution than corresponding physical sensors in this manner allows for existing physical sensors to be used while improving performance of the VRF system.