Abstract: Disclosed is a loudspeaker, including: a vibration system; a magnetic circuit system comprising a magnetic basket, a central magnet fixed to the magnetic basket, and a peripheral magnet fixed to the magnetic basket and disposed surrounding the central magnet. Compared with conventional technologies, the obliquely magnetized peripheral magnet can extend the lengths of effective magnetic field lines, equivalent to increasing the thickness of the peripheral magnet; meanwhile, fitting between the central special-shaped magnet and the peripheral special-shaped magnet achieves non-linear BL control; the loudspeaker described herein increases the total magnetic energy product via the special-shaped magnets, which increases the loudspeaker BL and alleviates BL non-linearity.

Abstract: The present invention provides a speaker including a housing and a moving iron assembly. The moving iron assembly includes a first magnetic structure and a second magnetic structure, a magnetic induction diaphragm that has a suspension, a first moving iron unit and a second moving iron unit located inside the suspension, and a first coil and a second coil. The side where the first coil and the second coil are away from each other respectively correspond to the first magnetic structure and the second magnetic structure. Compared with the prior art, the magnetic flux control of the moving iron assembly circuit of the speaker is strong, and the driving force is improved.

Abstract: A compute device implements a technique for facilitating selective access to hardware codec resources. The compute device executes, in a trusted execution environment, firmware for controlling graphics hardware of a device that supports a plurality of video codecs. The compute device obtains codec control data specific to the device from a remote system and then configures the firmware to implement a codec policy for selectively providing access to the plurality of video codecs based on the codec control data.

Abstract: An offshore floating-type wind power combined semi-submersible platform foundation has at least three stand columns that form an enclosure having a polygonal structure. The adjacent stand columns are connected by an upper support and a lower support. Each stand column is composed of an upper column body and a lower column body that are arranged coaxially. An upper portion of the upper column body is provided with a support block, the upper support rests on the support block. A lower portion of the upper column body is provided with a lower support connecting portion that is connected to the lower support. With the structural form of the offshore floating-type wind power combined semi-submersible platform foundation, the requirements for a manufacturing site and a combination site are greatly reduced, providing the possibility of large-scale offsite construction.

Abstract: The present disclosure relates to the technical field of electrical device state monitoring, and particularly discloses an open-phase fault monitoring system, in which a relay communication unit is configured with an MCU as a central control processing unit, and an external ADC realizes high-speed A/D conversion for a plurality of signals; a timing function is realized by a GNSS&RTC of the relay communication unit, a data interaction function is realized by a LORA module, and data is sent to a background industrial personal computer based on a designed sampling frequency. The system of the present disclosure has the advantages of small volume, high precision, low cost, easy installation and the like, and realizes real-time monitoring and accurate identification of a line open-phase fault of an auxiliary power supply system in a nuclear power plant.

Abstract: The present invention relates to the technical field of electroacoustic conversion and provides a speaker, the speaker of the present invention connects a magnetic yoke and a basin frame through an elastic connection member to support a magnetic circuit system in vibration, a diaphragm, the magnetic yoke, the basin frame, and an elastic connection member together form a sealed back cavity. The vibration directions of the magnetic circuit system and the vibration system are in opposite directions. An upper housing and a lower housing are respectively fixed to the opposite sides of the basin frame, the upper housing, the diaphragm, and the basin frame together form a first front cavity for sound output, and the lower housing, the magnetic yoke, and the basin frame together form a second front cavity for sound output, so as to realize dual-sided sound output from the speaker.

Abstract: An electronic device includes a casing, a first sound-emitting device and a second sound-emitting device. The first sound-emitting device includes a basket, a vibration system and a magnetic circuit system. The vibration system includes a diaphragm and a voice coil. The magnetic circuit system includes a magnetic bowl, a magnetic unit and an auxiliary magnetic. The first sound-emitting device further includes an upper shell and a front cavity. The first sound-emitting device further includes a first elastic damping member. The diaphragm, the magnetic bowl, the basket and the first elastic damping member are sealed and enclosed to form a first rear cavity, and the first sound-emitting device, the second sound-emitting device and the casing are enclosed to form a second rear cavity. The sound-emitting device of the present invention with good vibration damping effect, high frequency response sensitivity and better acoustic performance.

Abstract: A method and an apparatus for determining a split point are disclosed. The method includes: obtaining network state information, first power consumption information of a terminal device, and artificial intelligence model attribute information; and determining at least one split point from a plurality of split points based on the network state information, the first power consumption information, and the artificial intelligence model attribute information. According to the foregoing method, a split point is determined based on the network state information, the first power consumption information, the artificial intelligence model attribute information, or other information, so that the determined at least one split point can meet performance indicators such as a transmission rate, channel state information, and power consumption.

Abstract: A first device determines based on ephemeris information of a satellite and service information of a first service on the satellite, at least one access network device that uses a frequency band overlapping with a frequency band used by the satellite to perform the first service, and sends indication information to one or more of the at least one access network device. The indication information indicates to reduce interference to the satellite, to enable a first aggregate interference value of the at least one access network device to the satellite to be less than or equal to a first threshold.

Abstract: A pulp molded cup lid includes a lid top portion, a transverse extension portion and a longitudinal extension portion. The transverse extension portion is connected to a lower side of an outer edge of the lid top portion and extends radially outward. The longitudinal extension portion is connected to an outer edge of the transverse extension portion and extends axially downward. The longitudinal extension portion is cylindrical. The pulp molded cup lid further includes an inner convex buckle disposed on an inner wall of the longitudinal extension portion. The inner convex buckle is integrally formed with the longitudinal extension portion. The inner convex buckle protrudes inward relative to the inner wall of the longitudinal extension portion. An outer wall of the longitudinal extension portion defines a rolling groove. The rolling groove is configured to further reduce an inner diameter of the inner convex buckle.

Abstract: A method for determining interference area information, a communication apparatus, and a communication system includes a first network device determines a coverage area of a satellite. The first network device determines interference area information based on a frequency band used by the satellite and a frequency band used by an access network device within the coverage area, where the interference area information includes identification information of at least one access network device within the coverage area, and there is an intersection between a frequency band used by the at least one access network device and the frequency band used by the satellite.

Abstract: The present invention provides a speaker including a housing and a moving iron assembly. The moving iron assembly includes a first magnetic structure and a second magnetic structure, a magnetic induction diaphragm that has a suspension, a first moving iron unit and a second moving iron unit located inside the suspension, and a first coil and a second coil. The side where the first coil and the second coil are away from each other respectively correspond to the first magnetic structure and the second magnetic structure. Compared with the prior art, the magnetic flux control of the moving iron assembly circuit of the speaker is strong, and the driving force is improved.

Abstract: The technology of this application includes a management unit that determines, based on task requirement information and/or task characteristic information of N computing tasks and a computing power status and/or a network status of at least one computing node, one or more target computing nodes in the at least one computing node and at least one computing task to be executed by each target computing node, where Nis an integer greater than or equal to 1. The management unit sends identification information of the corresponding at least one computing task to each target computing node in the one or more target computing nodes. During computing task allocation, the task requirement information and/or the task characteristic information, and the computing power status and/or the network status of the at least one computing node are comprehensively considered, which helps make computing task allocation more proper.

Abstract: A communication method, a communication apparatus, a communication system, a computer-readable storage medium, a chip, and a computer program product are provided. The communication method includes: A computing management unit determines an available computing resource of N edge computing nodes, where N is an integer greater than or equal to 1. The computing management unit determines allocation of a computing task to the N edge computing nodes based on the available computing resource. In this manner, joint computing between edge computing nodes can be simplified, system design can be simplified, costs can be reduced, and security can be improved.

Abstract: The present disclosure relates to the technical field of electrical device state monitoring, and particularly discloses an open-phase fault monitoring system, in which a relay communication unit is configured with an MCU as a central control processing unit, and an external ADC realizes high-speed A/D conversion for a plurality of signals; a timing function is realized by a GNSS&RTC of the relay communication unit, a data interaction function is realized by a LORA module, and data is sent to a background industrial personal computer based on a designed sampling frequency. The system of the present disclosure has the advantages of small volume, high precision, low cost, easy installation and the like, and realizes real-time monitoring and accurate identification of a line open-phase fault of an auxiliary power supply system in a nuclear power plant.

Abstract: The present disclosure discloses a speaker comprising a housing and a sound producing unit fixed to the housing; the sound producing unit comprises: a frame, a vibration system, a magnetic circuit system and a spring damping element; the spring damping element supports the magnetic circuit system in vibration in the holding space; a counterweight block housed in the rear cavity and fixed to a side of magnetic bowl away from the magnetic circuit system. The speaker of the present invention constitutes another vibration system by means of a magnet or a magnetic bowl and a spring damping element, which vibrates opposite to the vibration system consisting of a diaphragm-dome-voice coil, resulting in a reduction of the force on the cone frame; the addition of a counterweight block reduces the effect of air in the rear cavity on the magnet; the magnetic through-holes and leakage holes optimize vibration damping.

Abstract: A speaker includes housing having receiving space and sound-producing unit received in receiving space. The sound-producing unit includes frame; vibration unit; magnetic circuit unit; spring damping element elastically connects magnetic circuit unit to frame and supports magnetic circuit unit to vibrate in accommodating space. A weight is fixed to magnetic circuit unit. In speaker, magnet or yoke and spring damping element form another vibration unit. This another vibration unit and the vibration unit that is composed of voice diaphragm, dome, and voice coil are subjected to interaction forces and vibrate in opposite directions, which reduces force on frame. The weight is added to magnetic circuit unit, which reduces the impact of air in rear cavity on magnet. Moreover, by adjusting mass of weight and stiffness and damping of spring damping element, corresponding resonant frequency and damping of magnetic circuit unit may be set, thereby achieving an optimal vibration isolation effect.

Abstract: The present invention provides a speaker box including a housing, a sound unit and a magnetic circuit coupling valve. The sound unit includes a bracket, a vibration system and a magnetic circuit system including a secondary magnet. The housing includes a bottom cover having leakage holes. The magnetic circuit coupling valve is accommodated in a rear cavity and includes a support, a negative stiffness diaphragm and a coil. The negative stiffness diaphragm faces to the leakage holes. The coil receives an external control signal and generates an electromagnetic field with the secondary magnet to drive the negative stiffness diaphragm to seal the leakage holes, or make the leakage holes open, or make the leakage holes partially open or closed. Compared with a related technology, the speaker box has fine acoustic performance and is able to accurately control communication of a rear cavity with the outside.

Abstract: The present invention provides a micro speaker, including a frame with a containment space, and a magnetic circuit system and a vibration system contained in the containment space. The vibration system includes a first diaphragm, a circuit board, a skeleton, and a voice coil. The micro speaker further includes a welding plate structure and a balance component. The voice coil includes a lead wire electrically connected with the welding plate structure. By setting the balance component on the skeleton, the present invention can keep the weight balance at both ends of the skeleton, so as to ensure that the skeleton will not sway when the vibration system is working, so that the vibration of the skeleton is stable and the sound quality is improved.

Abstract: The present invention discloses a micro speaker, including a frame with a containment space, a magnetic circuit system and a vibration system accommodated in the containment space. The vibration system includes a first diaphragm, a dome skeleton fixed to the first diaphragm, and a voice coil fixed on the dome skeleton. A welding plate structure is fixed on the dome skeleton, and a first circuit board and a second circuit board fixed to the frame respectively. The first diaphragm includes a first diaphragm area and a second diaphragm area. The thickness of the first diaphragm area is greater than the thickness of the second diaphragm area. The local thickening material is adopted to avoid the problem of speaker rigidity asymmetry caused by unbalanced heat distribution, so as to realize the stable operation of the speaker, and the manufacturing process is simple.