Abstract: The present invention provides a transmission device applied to a photovoltaic tracking support. The photovoltaic tracking support comprises a stand column and a main beam. The main beam is rotatably supported on the stand column, and the main beam supports a photovoltaic assembly. The transmission device comprises a composite chain gear set and a composite chain wheel set. The composite chain gear set has multiple chain gears. The multiple chain gears are coaxially arranged and are arranged in a manner that the teeth are staggered. The composite chain wheel set has multiple chain wheels. The multiple chain wheels are coaxially arranged, and are in one-to-one correspondence to and meshing transmission with the multiple chain gears. One of the composite chain gear set and the composite chain wheel set is rotatably disposed on the stand column, and the other is connected to the main beam. The present invention also provides a photovoltaic tracking support comprising the transmission device.

Abstract: A method comprises adjusting, based on an adjustment factor, a quantized energy envelope of a subband of a frame of an audio signal to obtain an adjusted quantized energy envelope of the subband. Bit allocation for a plurality of subbands of the frame is performed based on the adjusted quantized energy envelope, wherein at least one subband in the plurality of subbands has at least one allocated bit. At least a part of spectral coefficients included in the at least one subband is quantized, based on the at least one allocated bit, to obtain quantized spectral coefficients. A bitstream is obtained that includes the quantized spectral coefficients.

Abstract: A system includes: a central controller configured to generate an energy management request; and one or more client controllers. Each of the one or more client controllers is configured to communicate with the central controller through a first communications network, each of the one or more client controllers is associated with a controllable service location, and each of the one or more client controllers is configured to communicate with a premises energy management system (PEMS) that commands one or more controllable energy resources at the controllable service location to operate according to a user specification and the energy management request.

Abstract: The present disclosure provides a camera calibration method, system, storage medium for X-ray imaging. The method may include acquiring at least one image taken by a camera to be calibrated, wherein the at least one image may include a calibration target, and the calibration target may include at least one calibration point; selecting any calibration point of the at least one calibration point as a target calibration point; determining, based on the at least one image, image coordinates of the target calibration point; obtaining a first position and a second position of an X-ray imaging device; determining, based on the first position and the second position, spatial coordinates of the target calibration point; and performing calibration on the camera to be calibrated based on the image coordinates and the spatial coordinates.

Abstract: A composite conductor for a vehicle, a propulsion system for a vehicle, and a method of forming a composite busbar for a vehicle. The composite conductor includes a surface, and a first copper tape laminated to the surface. The composite conductor is electrically conductive exhibiting an electrical conductivity of 1.0×10{circumflex over (7)} Siemens per meter (S/m) or greater. The first copper tape includes a layer of carbon nanotubes sandwiched between a first copper layer and a second copper layer. The composite busbar may be connected to a plurality of windings in the stator of an electric motor.

Abstract: Disclosed in the present application are a power tool and a discharging system. A battery pack includes a first positive terminal, a first negative terminal, a first controller, and a first state detection terminal. The power tool includes a second positive terminal, a second negative terminal, a second controller, a power supply module for supplying power to the second controller, and a power-on module connected to the power supply module. When the battery pack is connected to the power tool by insertion, the power-on module is connected to the first state detection terminal; and the first state detection terminal controls on/off of the power-on module according to the state of the battery pack, so as to control whether to power on the power tool.

Abstract: In an embodiment, during an overload or short circuit condition, a current limit circuit of an inverter is utilized in a pulse-by-pulse manner, which in turn causes the AC output of the inverter to operate in a hiccup mode (e.g., pulse-by-pulse based on and off dependent upon the output current) and automatically recover once the operating parameters (e.g., output current) are within the proper ranges. The pulse-by-pulse current limit circuit is configured to protect the switching circuits of the inverter from shorting or device failure during any peak operating voltage conditions by ensuring on/off timing accuracy of the inverter.

Abstract: This document generally relates to wireless communication that includes a user device that determines that it satisfies a condition, and in response to satisfying the condition, performs at least one of: a relaxed positioning reference signal (PRS) measurement according to a relaxed PRS measurement rule that corresponds to the condition; or a relaxed sounding reference signal (SRS) transmission according to a relaxed SRS transmission rule that corresponds to the condition. Additionally, at least one network device determines a relaxed PRS measurement rule corresponding to a first condition or a relaxed SRS transmission rule corresponding to a second condition. The at least one network device transmits the relaxed PRS measurement rule corresponding to the first condition or the relaxed SRS transmission rule corresponding to the second condition.

Abstract: A wireless communication method includes transmitting, by a first wireless communication node. Network-Controlled Repeater (NCR) support information to a second wireless communication node; and receiving NCR configuration information, by the first wireless communication node from the second wireless communication node.

Abstract: A battery cell includes A anode electrodes, C cathode electrodes, and S separators arranged between the A anode electrodes and the C cathode electrodes, where A, C, and S are integers greater than one. The S separators include a composite gel membrane that is cured in-situ using ultraviolet light and includes a polymer, a solid electrolyte comprising greater than 20 wt % of the composite gel membrane, an initiator, and a liquid electrolyte.

Abstract: In accordance with an embodiment, a method includes: mapping, based on an attribute of a protocol data unit (PDU) set, a PDU in the PDU set to one or more transmission paths, wherein each transmission path of the one or more transmission paths has a different characteristic; and sending the PDU in the PDU set on the one or more transmission paths, where a quantity of the one or more transmission paths is less than or equal to a quantity of attribute values of a same type of attribute of the PDU set.

Abstract: A battery that cycles lithium ions includes a lithium metal negative electrode, a positive electrode, a porous separator disposed between opposing facing surfaces of the lithium metal negative electrode and the positive electrode, and a composite interlayer disposed on the facing surface of the lithium metal negative electrode, between the lithium metal negative electrode and the porous separator. The composite interlayer includes a polymer matrix phase and a lithium salt distributed phase embedded in and distributed throughout the polymer matrix phase. The lithium salt distributed phase constitutes, by weight, greater than or equal to about 10% and less than or equal to about 50% of the composite interlayer.

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive configuration information indicating a sidelink resource pool, a time gap, and a periodicity of feedback occasions. The UE may generate feedback bits associated with multiple received sidelink messages based on the configuration information. The UE may transmit the feedback bits in a single, multi-bit feedback message according to one or more rules. In some examples, the UE may drop one or more sets of feedback bits (e.g., in the case of a collision of too many feedback messages in a single slot) based on a weighted average priority level of one or more valid feedback bits in each of multiple sets of feedback bits.

Abstract: Methods, systems, and devices for wireless communication are described. A wireless device may perform, on a set of information bits, a distribution matching procedure to obtain a distributed amplitude symbol sequence. In some cases, the wireless device may perform the distribution matching procedure using approximations of quantities of distributed amplitude symbol sequences that each have a same length and a same transmission energy. The wireless device may then encode the distributed amplitude symbol sequence and transmit the encoded distributed amplitude sequence. A device that receives the encoded distributed amplitude sequence may perform a distribution dematching procedure on the distributed amplitude sequence based on approximating quantities of distributed amplitude symbol sequences.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may transmit capability information indicating at least one of: a number of resource block (RB) sets that can be occupied by physical sidelink feedback channel (PSFCH) communications of the UE, or a maximum number of PSFCH communications supported by the UE, wherein the maximum number of PSFCH communications is associated with a configured number of PSFCH-carrying RBs. The UE may transmit or receive PSFCH feedback in accordance with at least one of the configured number of PSFCH-carrying RBs or the number of RB sets. Numerous other aspects are described.

Abstract: A battery comprising a shell and a roll core disposed within the shell, the shell including a shell body and an end cap component, one end of the shell body being provided with an opening, another end of the shell body being provided with a sealing portion, the opening being plugged by the end cap component, the roll core including a first tab and a second tab, the end cap component being provided with a pressure-relief structure, an outside wall of the sealing portion being provided with a first terminal and a second terminal at intervals, the first terminal and the second terminal being insulatively disposed, the first tab being connected to the first terminal, and the second tab being connected to the second terminal.

Abstract: This application provides a signal transmission method and a communication apparatus. In one example, first information is received. The first information includes a first field, the first field is used to determine a code length of a first mask, the code length of the first mask is comprised in a first value set, and the first value set comprises one or more of the following values: 2, 3, 4, 6, and 8. A reference signal is determined based on the first mask. The reference signal is sent or received.

Abstract: In an embodiment of the techniques presented herein, a charging system includes an input port, a wireless charging unit, having a magnetic charging interface, and a wireless charging controller configured to generate a magnetic charging signal at the magnetic charging interface based on a first connection state of the magnetic charging interface, and a universal serial bus power delivery (USB-PD) power adaptor, having an output port, and a USB-PD controller configured to deliver power to the output port, wherein a first portion of available power at the input port is allocated to the wireless charging unit for generating the magnetic charging signal responsive to the first connection state indicating a connected device, and a second portion of the available power at the input port is allocated to the USB-PD adaptor based on the first portion allocated to the wireless charging unit.

Abstract: Embodiments of this application are applied to a wireless local area network system that supports 802.11 series protocols, for example, a next-generation Wi-Fi protocol of IEEE 802.11ax, such as 802.11be, Wi-Fi 7, or EHT, or for another example, a next-generation protocol of 802.11be or Wi-Fi 8, and may be further applied to an ultra-wideband UWB-based wireless personal area network system or a sensing (sensing) system. Embodiments of this application provide a communication method and apparatus. The method includes: generating a synchronization header field based on a sequence set, where the sequence set includes at least one of the following sequences: a sequence with a length of 127, a sequence with a length of 31, a sequence with a length of 91, or a sequence with a length of 64; and sending the synchronization header field.

Abstract: Disclosed is a harmonic magnetic field driving electric motor comprising several tooth slots arranged on a stator lamination, a circumferential mechanical space of a stator, stator winding divided into phases according to a connection rule, and a stator assembly having a direct current that is introduced into windings of any phase, wherein the number of pole pairs, the number of wire packs, the arrangement of rotor magnetic steel, the number of formed pole pairs and electric motor air gap are balanced and optimized for superior performance using double-layer windings.