Abstract: An antenna module is adapted to be disposed in a fuselage of an unmanned aerial vehicle. The fuselage includes front and rear sides opposite to each other and left and right sides opposite to each other. The antenna module includes a first antenna, a second antenna, a third antenna, and a fourth antenna. The first antenna is horizontally disposed on the front side of the fuselage and is a horizontally polarized antenna. The second antenna is vertically disposed on the right side of the fuselage and is a vertically polarized antenna. The third antenna is horizontally disposed on the rear side of the fuselage and is a horizontally polarized antenna. The fourth antenna is vertically disposed on the left side of the fuselage and is a vertically polarized antenna. Each of the first antenna, the second antenna, the third antenna, and the fourth antenna operate in a frequency band.

Abstract: A locking structure and a buckling washer are provided. The locking structure is provided for locking an object having a thru-hole. The locking structure includes a stud sleeve, a buckling washer, and a screw. The buckling washer is disposed on the stud sleeve, and the buckling washer includes a carrying portion and a plurality of hook portions. The carrying portion has a penetrating hole, and the hook portions extend from the carrying portion and are arranged outside of the penetrating hole. The carrying portion of the buckling washer is configured to carry the object, and the hook portions are configured to retain the object. The screw is configured to be screwed in the stud sleeve by passing through the thru-hole of the object and the penetrating hole of the buckling washer, such that the object is locked by the hook portions.

Abstract: The present invention discloses a cooling device including an accommodating tank, a turbulence plate, an adjustment structure and a control mechanism. The accommodating tank is adapted to accommodate a coolant. The turbulence plate divides the accommodating tank into a liquid inlet space and a cooling space. The turbulence plate includes a groove that divides the turbulence plate into a first plate portion and a second plate portion. The adjustment structure includes an adjustment plate corresponding to the groove. The control mechanism controls the adjustment plate to move between a first position and a second position, where when the adjustment plate moves from the first position to the second position, the adjustment plate passes through the groove and enters the liquid inlet space, to divide the liquid inlet space into a first chamber corresponding to the first plate portion and a second chamber corresponding to the second plate portion.

Abstract: A hand-eye calibration method and a hand-eye calibration device for a robot arm are provided. The method includes following steps. A first mapping relationship between a base of the robot arm and a terminal of the robot arm and a second mapping relationship between a camera and a target object are obtained. Based on a scale, a third mapping relationship between the terminal of the robot arm and a tool set mounted on the terminal and a fourth mapping relationship between the camera and the base in each dimension are updated to minimize an error between a position of the target object in an image captured by the camera and a position of the tool set. In response to the error being convergent and the scale being less than or equal to a scale threshold, the third mapping relationship and the fourth mapping relationship calibrated by the scale are output.

Abstract: A radio frequency beauty instrument is suitable for using on skin of a user. The radio frequency beauty instrument includes a housing, a main circuit board, a gear set, a drive unit, and a radio frequency module. The main circuit board is disposed in the housing. The gear set is disposed in the housing. The drive unit is disposed in the housing and electrically connected to the main circuit board. The drive unit is configured to drive the gear set. The radio frequency module includes a radio frequency circuit disposed on the main circuit board and multiple electrode units exposed outside the housing and electrically connected to the radio frequency circuit. The electrode units are connected to the gear set to be driven by the gear set to rotate. The radio frequency module provides a radio frequency current to the skin through the radio frequency circuit and the electrode units.

Abstract: A wire management structure and an electronic device. The wire management structure is suitable to fix a plurality of wires. The wire management structure includes a main body and a plurality of guide members. The main body includes a first side wall, a second side wall and a third side wall, and the second side wall is connected to the first side wall and the third side wall. The guide members are correspondingly disposed at the first side wall, the second side wall and the third side wall of the main body. A plurality of wire management slots are formed between the guide members and the first side wall, the second side wall and the third side wall, and the wires are suitable to pass through the wire management slots.

Abstract: An antenna assembly includes a patch antenna, a metal layer, and a feed-in signal layer. The metal layer is disposed on a side of the patch antenna and includes a first slot and a second slot. The feed-in signal layer is disposed on a side of the metal layer opposite the second antenna and includes a transmitting port, a receiving port, a hybrid coupler, and two microstrips. The transmitting port and the receiving port are connected to the hybrid coupler, and the two microstrips are extended in the direction away from the hybrid coupler. Projections of two ends of the two microstrips onto the metal layer are overlapped with the first slot and the second slot. An antenna array is also mentioned.

Abstract: An eyeglasses device includes a frame, a first temple, a circuit board, and a flexible circuit board. The frame includes first and second metal parts and an insulating component connecting the first and second metal parts. Second metal part is insulated from first metal part by insulating component. At least part of appearance of the frame is formed by the first metal part and the second metal part together. The first temple is pivotally connected to the frame. The circuit board is disposed in the first temple. The flexible circuit board is disposed on the frame and the first temple and is electrically connected to the second metal part and the circuit board. The flexible circuit board includes an antenna matching circuit. The second metal part serves as an antenna, and the antenna with the antenna matching circuit is excited at a first frequency band and a second frequency band.

Abstract: An electronic device, including a first body including first and second metallic enclosures, a metal assembly and an antenna. The second metallic enclosure is arranged at the first metallic enclosure. An internal space is formed between the first and second metallic enclosures. The metal assembly is disposed in the internal space. The metal assembly is connected to the first and second metallic enclosures, and forms a metal cavity together with the first and second metallic enclosures. The metal cavity has an opening opposite to the metal assembly. The antenna is disposed in the metal cavity and close to the opening, and includes a grounded radiator, a radiator assembly and a low frequency feed arm. The grounded radiator is conducted to the first metallic enclosure. A ground end of the radiator assembly is connected to the ground radiator. The low frequency feed arm is connected to the radiator assembly.

Abstract: A pixel shifting method and a control method of a display screen are provided. The pixel shifting method is adapted for the display screen, and the display screen includes at least one processor to perform the following steps. When the display screen displays a picture, pixel shifting is performed on a central point of the picture according to a shifting path. A plurality of pixels on the shifting path is allowed to be sequentially displayed on the display screen according to a plurality of different color attributes. The color attribute of each of the plurality of pixels is changed after a cycle of the pixel shifting ends.

Abstract: An optical module includes a first lens assembly including a first lens holder and a first lens fixed to the first lens holder, a second lens assembly, and an adjustment member. The first lens holder has at least one guiding inclined groove having a first stroke end and a second stroke end. In a direction parallel to an optical axis of the first lens, a stroke difference is provided between the second and first stroke end. The second lens assembly includes a second lens holder slidably disposed in the first lens holder, a second lens fixed to the second lens holder, and at least one guiding member slidably disposed in the second lens holder and slidably connected to the guiding inclined groove. The adjustment member is rotatably sleeved on the first lens holder. The guiding member penetrates the guiding inclined groove to be coupled to the adjustment member.

Abstract: An electronic device including a casing, a base and an antenna module. The base is located in the casing and has a first side, a second side, and a top side. The antenna module is located in the casing. A flexible printed circuit of the antenna module is disposed on the base and includes a first surface corresponding to the first side and a second surface corresponding to the top side. An antenna pattern of the antenna module has a feed portion adjacent to the first surface. The antenna pattern extends from the feed portion to above a second ground plane and a third ground plane of the second surface. There is a gap between a first section of the antenna pattern close to the feed portion and a first ground plane of the first surface to form a U-shaped ground plane.

Abstract: A model training apparatus, a model training method, and a computer-readable medium are provided. In the method, a labeled abnormal sample is inputted into an abnormal detecting model. The abnormal detecting model is based on an autoencoder structure. A reconstructed error between the abnormal sample and an output of the abnormal detecting model is maximized to optimize the abnormal detecting model.

Abstract: An electronic device includes a metal back cover, a metal frame, a first antenna module and a second antenna module. The metal frame includes a first and a second disconnection portion, a first and a second connection portion. The first and the second connection portion are connected to the metal back cover. The first disconnection portion is separated from the first connection portion, the metal back cover and the second disconnection portion to form a first slot. The second disconnection portion is connected to the second connection portion and is separated from the metal back cover to form a second slot. The first antenna module is connected to the first disconnection portion, and forms a first antenna path. The second antenna module is connected to the second disconnection portion, and forms a second and a third antenna path with the second disconnection portion and the metal back cover.

Abstract: An electronic device includes a metal back cover, a metal frame, and at least one antenna module. The antenna module includes a separated portion, a first radiator, a second radiator, a third radiator disposed between the first radiator and the second radiator, and a fourth radiator connected to the separated portion. A first section of the first radiator is connected to the separated portion. A second section of the first radiator extends from the first section and has a first ground terminal. A third section of the first radiator extends from the first section and has a second ground terminal. The second radiator extends from the separated portion and has a third ground terminal. The third radiator includes a fourth section and a fifth section extending from the fourth section towards the second radiator. The fourth section is located next to the third section and has a fourth ground terminal.

Abstract: Provided are an eye state detection device and an operating method of the eye state detection device. The eye state detection device includes an image capturing component. The operating method includes: capturing a facial image in a current frame by the image capturing element; obtaining a current eye image with an eye region from the facial image; obtaining at least one prior eye image with an eye region of at least one prior frame; performing a weight function on the current eye image and the at least one prior eye image to generate a processed image; and determining a state of an eye in the eye region according to the processed image.

Abstract: An electronic device includes an antenna module and a metal casing. The antenna module is disposed in the metal casing, is adapted to resonate at a frequency band, and includes an insulating base plate, two patch antennas, a grounding surface, and two grounding extension segments. The insulating base plate includes a first surface and a second surface opposite to each other. The patch antennas are disposed on the first surface, arranged side by side, and spaced apart along a first direction. Each patch antenna includes a central axis, a feeding end, and a center point. The feeding end is located on the central axis and deviates from the center point. A distance between the center points of the patch antennas is less than or equal to 0.5 times a wavelength of the frequency band. The grounding extension segments are connected to the grounding surface disposed on the second surface.

Abstract: A button assembly is adapted to be installed at a conductive casing. Two opposite sides of the conductive casing respectively have first and second openings, and the first opening is communicated with the second opening. The button assembly includes a conductive button, a first insulating sleeve, and a second insulating sleeve. The conductive button includes a button part corresponding to the first opening and a shaft part connected to the button part and passing through the second opening from the first opening. The first insulating sleeve includes a first shaft hole and a first lateral slit. The second insulating sleeve includes a second shaft hole and a second lateral slit. The first insulating sleeve is sleeved on the shaft part and located at the first opening. The second insulating sleeve is sleeved on the shaft part and located at the second opening. An electronic device is also provided.

Abstract: The disclosure provides a server including a casing, a first circuit board and a replaceable power module. The first circuit board is disposed within the casing, wherein the first circuit board has at least one of a first electrical connector and a second electrical connector. The replaceable power module is assembled to one side of the casing, and the replaceable power module is electrically connected to the first electrical connector or the second electrical connector.

Abstract: An antenna module includes a main radiator, a feeding radiator, first and second grounding radiators, a first tilting radiator, and a pattern adjusting radiator. The main radiator includes a first open end. The feeding radiator, first and second grounding radiators, and first tilting radiator are bendably connected to main radiator. First tilting radiator has a second open end away from main radiator, is at an opposite side relative to first grounding radiator and feeding radiator, and forms a first non-zero angle with a normal direction of main radiator. Second grounding radiator is at an opposite side relative to first open end. The pattern adjusting radiator is beside the first open end, separated from first open end, and includes a matching radiator and a second tilting radiator. The matching radiator is close to first open end. A second non-zero angle is formed between the second tilting radiator and the normal direction.