Abstract: Provided are a metering abnormality analysis method and apparatus, a storage medium, and a computer device. The metering abnormality analysis method includes acquiring preliminary analysis data analyzed by a source-end system and determining at least one data filtering rule based on the preliminary analysis data (101); filtering the monitoring data of the source-end system based on the data filtering rule to obtain target metering abnormality data (102); comparing and analyzing the target metering abnormality data with preconfigured abnormal case data and determining at least one target case data from the abnormal case data (103); and performing multidimensional cluster analysis on the target metering abnormality data to obtain the aggregation level of the target metering abnormality data in multiple data dimensions and analyzing the cause of metering abnormality based on the target case data and the aggregation level (104).

Abstract: A projection toy includes a top housing. A bottom housing is fixedly mounted at a top end of the top housing. A projection mechanism is fixedly mounted between the top housing and the bottom housing. A light-emitting diode (LED) lamp panel is fixedly mounted on one side of the projection mechanism between the top housing and the bottom housing. An end, away from the LED lamp panel, of the projection mechanism is clamped in a limiting enclosure. The limiting enclosure is fixedly mounted at one end of a first cover. A second cover is fixedly connected to the first cover. A decorative cover is fixedly mounted on the second cover. The first cover is fixedly mounted at one end of the top housing and one end of the bottom housing on a side away from the decorative cover.

Abstract: A projection toy includes a top housing. A bottom housing is fixedly mounted at a top end of the top housing. A projection mechanism is fixedly mounted between the top housing and the bottom housing. A light-emitting diode (LED) lamp panel is fixedly mounted on one side of the projection mechanism between the top housing and the bottom housing. An end, away from the LED lamp panel, of the projection mechanism is clamped in a limiting enclosure. The limiting enclosure is fixedly mounted at one end of a first cover. A second cover is fixedly connected to the first cover. A decorative cover is fixedly mounted on the second cover. The first cover is fixedly mounted at one end of the top housing and one end of the bottom housing on a side away from the decorative cover.