Abstract: This disclosure provides an energy storage apparatus, an energy storage apparatus control method, and a photovoltaic system. The energy storage apparatus includes: a plurality of battery clusters, a plurality of conversion units, a start unit, and a controller. The controller includes a plurality of control units. The start unit is configured to: after receiving a start signal, control a control switch in at least one battery cluster to close, to start a control unit corresponding to the battery cluster. The control unit is configured to: determine, based on a state of the control switch in the battery cluster, whether a black start mode is on; and when determining that the black start mode is on, control a DC-DC converter in the corresponding conversion unit to release electric energy stored in a battery pack in the corresponding battery cluster, to energize a direct current bus.

Abstract: A battery cover includes a top cover assembly and an insulating support. The top cover assembly can be fixedly connected with a case to form an accommodation space for accommodating a core, and the top cover assembly can be welded with a tab on the core. The insulating support can be accommodated in the accommodation space. The insulating support and the top cover assembly form an accommodation cavity for accommodating the tab, and the insulating support is provided with a notch for the tab to pass through.

Abstract: Embodiments of the present disclosure provide a speaker. The speaker may include a diaphragm; a magnetic circuit component; and a coil connected to the diaphragm, at least part of the coil being arranged in a magnetic gap formed by the magnetic circuit component, and the coil driving the diaphragm to vibrate to generate sound after the coil being energized. The diaphragm may include a main-body region and a folded-ring region surrounding the main-body region, the main-body region may include a first inclined section and a first connecting section connected to the coil, the first inclined section may be attached to a portion of the folded-ring region, and the first inclined section may be tilted in a direction away from the coil with respect to the first connecting section.

Abstract: The present disclosure relates to an earphone, comprising: a sound production component, at least a portion of the sound production component extending into a concha cavity; ear hook disposed between an auricle and a head of the user, extending toward a side of the auricle away from the head, and connecting the sound production component; in a non-wearing state, the ear hook and the sound production component form a first projection on a first plane comprising an outer contour, a first end contour, an inner contour, and a second end contour, the outer contour, the first end contour, the second end contour, and a tangent segment connecting the first end contour and the second end contour define a first closed curve, a ratio of a projection area of the sound production component on the first plane to a first area of the first closed curve is between 0.25 and 0.4.

Abstract: A cable detection system for detecting an end of a cable having a plurality of exposed different sections includes an illumination device and a camera. The illumination device emits an illuminating light to the end of the cable. The illumination device simultaneously emits a parallel light and a diffuse light to the end of the cable. The camera captures an image of the end of the cable. The parallel light sharpens a boundary between the different sections of the cable in the image, and the diffuse light clarifies a surface of the different sections in the image.

Abstract: The present disclosure relates to the technical field of multimedia, and in particular, to a control method and apparatus for multimedia content display, an electronic device, and a medium. First multimedia content is displayed on a first page; and in response to a terminal device changing in a preset attitude, the first page is switched to a second page, and second multimedia content is displayed on the second page. That is, the switching of the first page to the second page is implemented by triggering the attitude change of the terminal device, thereby improving the interestingness of user interaction.

Abstract: The present disclosure provides a twisting machine for automatic donning, including an outer yarn branch rail arranged at the middle position of the twisting machine, wherein the outer yarn branch rail is positioned above the twisting machine, so as to successively drive the outer yarn carrier assembly to deliver the outer yarn winding package by suspending; further including an inner yarn branch rail arranged at the both sides of the twisting machine, the inner yarn branch rail is positioned above the twisting machine, so as to successively drive the inner yarn carrier assembly to deliver the inner yarn winding package by suspending. The forementioned structure enables the outer yarn winding package and the inner yarn winding package to be delivered high-efficiently in large scale by suspending and conveying, so as to largely reduce the labor intensity of operators and greatly improve production efficiency.

Abstract: A child crib includes a frame body, a corner component, a cloth component and a covering member. The cloth component at least partially covers the frame body. The corner component is connected to a handrail and a post of the frame body and exposed out of the cloth component. A first ring-shaped opening structure and a second ring-shaped opening structure are respectively formed by a first side and a second side of a covering body of the covering member. When the first side of the covering body is connected to a first side of the cloth component, by positioning the second side of the covering body on a second side of the cloth component, the first side and the second side of the cloth component are respectively enclosed by the first ring-shaped opening structure and the second ring-shaped opening structure, and the covering member covers the corner component.

Abstract: The present disclosure relates to a data processing method, a data processing apparatus, and related products. The data processing apparatus includes an address determining unit and a data storage unit. The address determining unit is configured to determine a source data address and a plurality of discrete destination data addresses of data corresponding to a processing instruction when the decoded processing instruction is a discrete store instruction, where the source data address may include continuous data addresses.

Abstract: The present disclosure provides a whole-process automatic loading-and-unloading and logistics system, including an outer yarn preparation area, an inner yarn preparation area, a weaving area and an in-air conveying rail; the outer yarn preparation area is configured to have a carrier assembly, which delivers an outer yarn winding package to an outer yarn branch rail of a twisting machine in a twisting area via the out yarn main rail of the in-air conveying rail; in the inner yarn preparation area, the carrier assembly delivers an inner yarn winding package to an inner yarn branch rail of the twisting machine in the twisting area via the inner yarn main rail of the in-air conveying rail; in the twisting area, the carrier assembly delivers a yarn product to a yarn product donning rail in the weaving area via the yarn product main rail of the in-air conveying rail.

Abstract: A lifting system for inner yarn rails relates to the technical field of twisting and weaving equipment in factories, the system comprises an in-air conveying rail, and a carrier unit, wherein the in-air conveying rail is configured to convey the carrier unit, and the carrier unit is configured to carry a winding package; an inner yarn-carrier-lifting section is arranged on the in-air conveying rail, the inner yarn-carrier-lifting section is positioned on both sides of a twisting machine; when the inner yarn-carrier-lifting section rises, it communicates with the in-air conveying rail; when the inner yarn-carrier-lifting section descends, it approaches the position of a spindle bucket of the twisting machine. The winding packages delivered each time by one carrier unit can correspond to every spindle position of the twisting machine, dramatically improving the delivery efficiency of the winding packages.

Abstract: The present disclosure relates to a carrier for sustained-release of a drug and use thereof. The carrier is used to carry a drug. The carrier is in a gel state, a semi-solid state, or a solid state. The carrier includes a polyol fatty acid ester as a main component and a hydrogenated vegetable oil dissolved in the polyol fatty acid ester. The state of the sustained-release carrier can be adjusted by adjusting the amount of the dissolved hydrogenated vegetable oil.

Abstract: A data processing method and apparatus, and a related product. The data processing method comprises: when a decoded processing instruction is a vector extension instruction, determining a source data address, a destination data address and an extension parameter of data corresponding to the processing instruction; according to the extension parameter, extending first vector data of the source data address, so as to obtain extended second vector data; storing the second vector data to the destination data address, wherein the source data address and the destination data address comprise consecutive data addresses. Vector extension and storage are implemented by means of an extension parameter in a vector extension instruction, so as to obtain extended vector data, thereby simplifying processing, and reducing data overhead.

Abstract: A data transmission method includes receiving, by an optical line terminal (OLT) from an optical network unit (ONU), uplink burst data that includes a synchronization data block and a payload, where the synchronization data block includes first synchronization data, wherein the first synchronization data includes a first preamble and an ONU identifier, and a first bandwidth occupied by the first frequency distribution of the first synchronization data is narrower than a second bandwidth occupied by the second frequency distribution of the payload, and obtaining, by the OLT from the first synchronization data, the ONU identifier.

Abstract: An integrally detachable valve clamp and delivery system thereof, includes a control handle, a delivery catheter connected to the control handle, and a valve clamp connected to the delivery catheter, wherein the valve clamp is equipped with an inner catheter and an outer catheter, both of which are equipped with detachable connection mechanisms; the delivery catheter comprises a first delivery catheter, a central control unit, and a second delivery catheter; the distal parts of both the first delivery catheter and the second delivery catheter are equipped with releasable connection mechanisms that match the detachable connection mechanisms.

Abstract: The present invention relates to a binuclear metal platinum complex and application thereof. The binuclear metal platinum complex is a compound having a structure of a chemical formula (I). The compound is applied in an organic light-emitting diode, has lower driving voltage and higher luminous efficiency, and can significantly improve the service life of a device, thus having the potential of being applied in the field of display panels. The present invention further provides an organic light-emitting diode including a cathode, an anode, and an organic layer. The organic layer is one or more of a hole injection layer, a hole transport layer, a light-emitting layer, a hole blocking layer, an electron transport layer, and an electron injection layer. At least one of the organic layers includes the compound of the structural formula (I).

Abstract: Methods to test functional memory interface logic of a core under test utilize a built-in-self-test (BIST) controller to generate test sequences, and a clock-gating circuit to selectively supply the test sequences to a memory input or memory output on the core under test. After an initial data initialization of the core under test at BIST mode, an at-speed functional mode is utilized to capture a desired memory output.

Abstract: The present disclosure provides a wind turbine, a converter, and a low-voltage ride-through detection method and device. The low-voltage ride-through detection method includes: determining an adjustment value of a preset parameter of a power grid on the basis of a power grid voltage, wherein the preset parameter includes at least one of a current, a current frequency and a power factor angle; adjusting the preset parameter of the power grid on the basis of the adjustment value; and detecting, on the basis of a power grid voltage after the preset parameter of the power grid is adjusted, whether the power grid meets a low-voltage ride-through condition. Therefore, a power grid fault of the wind turbine in a weak grid can be accurately identified, so as to enter a low-voltage ride-through state, thereby avoiding system instability in the process of a power grid fault ride-through in the weak grid.

Abstract: Provided in the present application are a data processing method and apparatus based on data coding, and a device. The method comprises: performing N-channel error correction coding on data to be processed that is in information to be processed, so as to obtain N pieces of coded data to be processed; by using coded meta-channel data obtained by means of error correction coding, performing redundancy processing on the coded data to be processed, so as to obtain N pieces of response data; and then performing error correction decoding on the N pieces of response data, so as to obtain processing result information of the information to be processed.

Abstract: Provided are a data processing system and method based on dynamic redundancy heterogeneous encoding, and a device. The method comprises: respectively performing error correction encoding on information to be processed and a processing rule, so as to form encoded information to be processed and an encoded processing rule; processing, by using the encoded processing rule, the encoded information to be processed, so as to obtain response data; and then performing error correction decoding on N pieces of response data, so as to obtain processing result information of the information to be processed.