Abstract: The present disclosure discloses a rotary type star projection lamp with an audio playing and atmosphere set-off functions, and belongs to the technical field of star projection lamps. The rotary type star projection lamp includes a lamp house and a base, wherein a top end of the lamp house is connected with a cover plate; the cover plate is provided with a star lampshade and two cloud lampshades; a side wall of an inner bottom of the lamp house is connected with a drive motor; an output end of the drive motor is connected with a chain wheel assembly through a drive shaft; and a star light scattering sheet and two cloud light scattering sheets are respectively arranged above the chain wheel assembly.

Abstract: The present invention provides a band-pass filtering adaptive response method and system for music lamp strip. The method comprises the following steps: Step 1: obtaining sound data acquired by a microphone in real time, and sequentially filtering the obtained sound data through a low-pass filter; Step 2: classifying the filtered sound data by a volume classifier, so as to classify the continuous changes of sound into a number of discrete classifications; Step 3: determining a BPM of the sound data according to a classification result of the volume classifier; Step 4: determining a acquisition frequency of MCU according to the determined BPM; Step 5: acquiring the classification result of the volume classifier by MCU according to the determined acquisition frequency; Step 6: controlling color change and/or brightness change of LED lamp on the music lamp strip according to the classification result acquired by MCU.

Abstract: The present disclosure discloses a rotary type star projection lamp with an audio playing and atmosphere set-off functions, and belongs to the technical field of star projection lamps. The rotary type star projection lamp includes a lamp house and a base, wherein a top end of the lamp house is connected with a cover plate; the cover plate is provided with a star lampshade and two cloud lampshades; a side wall of an inner bottom of the lamp house is connected with a drive motor; an output end of the drive motor is connected with a chain wheel assembly through a drive shaft; and a star light scattering sheet and two cloud light scattering sheets are respectively arranged above the chain wheel assembly.

Abstract: The present invention provides a band-pass filtering adaptive response method and system for music lamp strip. The method comprises the following steps: Step 1: obtaining sound data acquired by a microphone in real time, and sequentially filtering the obtained sound data through a low-pass filter; Step 2: classifying the filtered sound data by a volume classifier, so as to classify the continuous changes of sound into a number of discrete classifications; Step 3: determining a BPM of the sound data according to a classification result of the volume classifier; Step 4: determining a acquisition frequency of MCU according to the determined BPM; Step 5: acquiring the classification result of the volume classifier by MCU according to the determined acquisition frequency; Step 6: controlling color change and/or brightness change of LED lamp on the music lamp strip according to the classification result acquired by MCU.