Abstract: An electronic device may have a phased antenna array. An antenna in the array may include a rectangular patch element with diagonal axes. The antenna may have first and second antenna feeds coupled to the patch element along the diagonal axes. The antenna may be rotated at a forty-five degree angle relative to other antennas in the array. The antenna may have one or two layers of parasitic elements overlapping the patch element. For example, the antenna may have a layer of coplanar parasitic patches separated by a gap. The antenna may also have an additional parasitic patch that is located farther from the patch element than the layer of coplanar parasitic patches. The additional parasitic patch may overlap the patch element and the gap in the coplanar parasitic patches. The antenna may exhibit a relatively small footprint and minimal mutual coupling with other antennas in the array.

Abstract: An electronic device may be provided with a phased antenna array on an antenna module. The array may include low band antennas and high band antennas that radiate at frequencies greater than 10 GHz. The module may include antenna layers, transmission line layers, and ground traces that separate the antenna layers from the transmission line layers. The low band antennas and the high band antennas may have radiators patterned onto the antenna layers. The radiators may be fed by transmission lines on the transmission line layers. The antenna layers may have a dielectric permittivity that is greater than the dielectric permittivity of the transmission line layers. This may serve to reduce the lateral footprint of the low band and high band antennas, which allows the antennas to be interleaved along a common linear axis in the phased antenna array, thereby minimizing the lateral footprint of the antenna module.

Abstract: A method of a power user classification based on distributed K-means, a storage medium and a classification device are provided. The method includes: obtaining, by N load aggregators, power consumption data of power users managed by respective load aggregators; performing, by each load aggregator, a normalization operation on time series load data of the power users managed by the load aggregator; forming a N×N dimensional adjacency matrix A; performing K-means clustering on normalized time series load data, to obtain the respective centroids and user groups characterized by the respective centroids; sharing, by the respective load aggregators, the centroids and the number of users under the respective centroids based on the adjacency matrix A, and obtaining consistent centroids by multiple load aggregators; after an overall iteration ends, obtaining, by the respective load aggregators, the consistent centroids consistent with the K-means centroid based on global data, to realize user classification.

Abstract: The present invention provides a lamp and a lamp mounting structure, wherein the lamp includes a lamp panel as a light source; two lateral supports arranged opposite to each other, wherein the lamp panel in use is fixed to a lamp supporting structure through the two lateral supports; and a locking mechanism for securing the lamp panel between the two lateral supports. The lamp disclosed herein has a better versatility.

Abstract: The present invention provides a lamp and a lamp mounting structure, wherein the lamp includes a lamp panel as a light source; two lateral supports arranged opposite to each other, wherein the lamp panel in use is fixed to a lamp supporting structure through the two lateral supports; and a locking mechanism for securing the lamp panel between the two lateral supports. The lamp disclosed herein has a better versatility.

Abstract: A collapse preventing lamp including a lamp panel and a lamp frame, wherein the lamp panel as a light source is installed in the lamp frame, and wherein a gap is defined between at least one side edge of the lamp panel and an edge of the lamp frame; and a baffle for shielding the gap is provided which is overlapped on the lamp frame, and the baffle is provided with an anti-collapse member for supporting a corresponding side edge of the lamp panel.

Abstract: The application discloses a direct-type panel lamp with adjustable light emitting function, which comprises a frame, a diffusion plate, a back plate and at least one light bar; a central area of the back plate is arched to form a chamber for accommodating the light bar; the diffusion plate has a light-transmitting function, which is disposed opposite to the back plate to close the chamber; the frame is formed by connecting a plurality of frame bars, with each frame bar being connected to corresponding edges of the diffusion plate and the back plate; for the same light bar, the LED beads comprise a plurality of first LED beads and a plurality of second LED beads, and wherein the first LED beads and the second LED beads are alternately arranged, and the brightness or color temperature of the first and second LED beads are different.

Abstract: A direct-type panel lamp with a driving box and a package structure, including a frame, a diffusion plate, a back plate, a driving box and a lamp strip. A central region of the back plate bulges to form a chamber for accommodating the lamp strip. The chamber includes a flat bottom wall and inclined side walls. The diffusion plate is arranged opposite to the back plate to close the chamber. The frame is formed by connecting a number of frame strips, each frame strip is connected with respective edges of the diffusion plate and the back plate. The driving box is configured to receive a driving module electrically connected to the lamp strip. The driving box includes a box body with an opening and a top cove buckled over the opening. The box body has a through hole for wire through which a connecting wire of the driving module passes.

Abstract: The present application discloses a direct-type panel lamp with uniform light, including a frame, a diffusion plate, a back plate, a reflective sheet and at least one lamp strip. A central region of the back plate bulges to form a chamber for accommodating the lamp strip. The chamber includes a flat bottom wall and inclined side walls. Each lamp strip is fixed on the bottom wall. The reflective sheet is located in the chamber and attached to the back plate. The reflective sheet is provided with cut-outs, and two side edges of each cut-out are attached to each other to adapt to a corner of the back plate. The cut-outs may prevent the folded edge from wrinkling or folding at the corners of the side walls, so that the reflective sheet is smoothly installed, avoiding causing light spots.

Abstract: A method of a power user classification based on distributed K-means, a storage medium and a classification device are provided. The method includes: obtaining, by N load aggregators, power consumption data of power users managed by respective load aggregators; performing, by each load aggregator, a normalization operation on time series load data of the power users managed by the load aggregator; forming a N×N dimensional adjacency matrix A; performing K-means clustering on normalized time series load data, to obtain the respective centroids and user groups characterized by the respective centroids; sharing, by the respective load aggregators, the centroids and the number of users under the respective centroids based on the adjacency matrix A, and obtaining consistent centroids by multiple load aggregators; after an overall iteration ends, obtaining, by the respective load aggregators, the consistent centroids consistent with the K-means centroid based on global data, to realize user classification.

Abstract: The present disclosure provides a method for performing clustering on operation modes of a power system based on a sparse autoencoder. The method includes: obtaining related data of the power system; setting a training parameter, a number of hidden layers, and a number of neurons; training an autoencoder model using the related data and extracting a topological structure and a weight matrix from the model; performing cluster analysis to obtain a number of typical scenarios; and performing decoding to obtain original data at centers of respective scenarios. The present disclosure can achieve fast selection and dimensionality reduction of feature vectors representing operation modes of a power system. In view of this, the present disclosure provides a novel idea and method for selecting a feature vector representing an operation mode of a power system and generating a typical operation scenario.

Abstract: The present application provides a collapse preventing lamp, comprising a lamp panel and a lamp frame, wherein the lamp panel as a light source is installed in the lamp frame, and wherein a gap is defined between at least one side edge of the lamp panel and an edge of the lamp frame; and a baffle for shielding the gap is provided which is overlapped on the lamp frame, and the baffle is provided with an anti-collapse member for supporting a corresponding side edge of the lamp panel.

Abstract: A direct-type panel lamp with a driving box and a package structure, including a frame, a diffusion plate, a back plate, a driving box and a lamp strip. A central region of the back plate bulges to form a chamber for accommodating the lamp strip. The chamber includes a flat bottom wall and inclined side walls. The diffusion plate is arranged opposite to the back plate to close the chamber. The frame is formed by connecting a number of frame strips, each frame strip is connected with respective edges of the diffusion plate and the back plate. The driving box is configured to receive a driving module electrically connected to the lamp strip. The driving box includes a box body with an opening and a top cove buckled over the opening. The box body has a through hole for wire through which a connecting wire of the driving module passes.