472 results about "Multi port" patented technology

The invention relates to the field of chip testing, in particular to a chip signal integrity test analysis method, device and equipment and a storage medium. The method comprises the following steps: extracting a chip performance index based on a chip design requirement document; performing saturation frequency excitation setting based on the chip performance index to generate an excitation test signal; performing a multi-port signal excitation test and parallel signal sampling based on the excitation test signal to generate a high signal-to-noise ratio response data set; obtaining a chip layout design file; performing chip communication link analysis on the chip layout design file, and constructing communication line layout data; performing signal mapping and waveform quality evaluation on the communication line layout data based on the high signal-to-noise ratio response data set to obtain a node signal distortion rate; and performing signal integrity quantization and theoretical signal integrity score comparison based on the node signal distortion rate, and marking a fault node. According to the invention, the chip testing efficiency is improved, and the signal abnormal part of the chip is accurately and efficiently detected.

The invention belongs to the field of PCIe (Peripheral Component Interconnect Express) chips, and relates to a CXL switching chip of a multi-core-grain architecture and a cross-core-grain routing switching method thereof, and a plurality of CXL switching core grains with uniform specifications are packaged and interconnected to form the CXL switching chip; each CXL switching core particle comprises a plurality of ports, each port can be configured to be in a CXL mode and a D2D mode, and the port of each CXL switching core particle at least comprises a physical layer, a CXL link layer, a CXL transaction layer, a D2D routing layer, a bypass and a multipath selection module; the CXL switching chip further comprises a multi-VC on-chip CXL switching network, and the multi-VC on-chip CXL switching network comprises at least one order-preserving switching VC and one out-of-order switching VC. According to the method, CXL switching chips of various specifications can be flexibly constructed, the design complexity and verification difficulty of the large-scale or multi-port CXL switching chips are effectively reduced, and the production yield of the chips is improved.

The invention belongs to the technical field of analog integrated circuit design and memory read-write, and provides a multi-valued RRAM read-write circuit with a write-and-read function. The multi-valued RRAM read-write circuit is a multi-port device capable of performing read-write simultaneously, in write operation, a low dropout regulator is utilized to provide voltage for the RRAM circuit and the standard resistance circuit, mirror current is generated, the resistance value of the RRAM is set to be the total resistance of the standard resistance circuit, an operational amplifier is connected into the circuit through a CMOS switch, and feedback is formed to stabilize the voltage at the two ends of the RRAM; and in the read operation, the CMOS switch is used for disconnecting the operational amplifier, and the voltage at the two ends of the RRAM device is directly read. Compared with an existing multi-valued read-write circuit, the multi-valued RRAM read-write circuit has the advantages that write-and-read multi-valued RRAM read-write is realized, and meanwhile, the read-write circuit is not separated, so that the write-in speed is increased, and the area of the read-write circuit is saved.

Disclosed is a multi-port charger capable of charging a higher-voltage battery by boosting low DC charging voltage using an on-board charger (OBC) installed in a vehicle without adding a separate part or device and capable of being used for various applications, such as V2G and V2L, in addition to charging.

The invention provides a calibration piece and a calibration method for a multi-port waveguide antenna test system, and a test method and a test system for a multi-port waveguide antenna, in the calibration piece, a positioning structure can ensure the repeatability of each connection, which is the premise of high-precision calibration, and the calibration accuracy is greatly improved. The load unit, the offset short circuit unit and the offset load unit are provided with a plurality of waveguide ports which are the same as those of a tested piece and can be directly butted, the internal structure of the waveguide port of the load unit is an antenna, electromagnetic wave energy can be radiated out instead of being absorbed internally, and high precision and stability of the load standard are guaranteed; according to the method, the reference surface can be determined at the interface of the tested piece, the calibration error model can be directly tested on the reference surface, the accuracy is good, and the solved calibration error model contains all time-varying characteristics of the whole test link during each calibration, so that the method can be used for frequently calibrating according to requirements, and the calibration accuracy is high. Measurement errors caused by temperature drift and link loss can be handled, and the efficiency is high.

The invention discloses a multi-port DAB energy storage system directly connected with an elevator frequency converter bus and a cooperative control method of the multi-port DAB energy storage system, and is suitable for an elevator frequency converter direct-current bus direct-connection scene. Aiming at the defects in the aspects of elevator bus transient support, multi-branch extension and parallel operation safety access in the prior art, at least two DAB power branches are adopted, the low-voltage sides of the DAB power branches are connected into the same low-voltage direct-current source in parallel to realize current expansion, and the high-voltage sides of the DAB power branches are connected to a VFD direct-current bus through a parallel operation access switch to realize voltage expansion after being connected in series and laminated; the controller adopts fixed frequency phase shift control, and combines a two-line parallel operation or power-off time sequence and a zero-crossing residence strategy; through multi-branch phase interleaving, mutual exclusion amplitude limiting constraint, ZVS guarantee and a fault striding linkage mechanism, branch power balance, circulating current suppression and bus stable support are realized. According to the invention, the millisecond voltage of the bus can be efficiently suppressed, the response speed, the operation efficiency and the reliability of the system are improved, and the core requirements of elevator bus energy recovery and transient stability control are met.

The invention discloses a power supply quality evaluation method and system for a source network load storage multi-port system and a medium, and the method comprises the steps: obtaining monitoring data of the source network load storage multi-port system, and calculating a system operation performance evaluation index based on a preset system operation evaluation model according to the monitoring data; constructing a system scoring model according to the system operation performance evaluation indexes; the system scoring model comprises an index score of each system operation performance evaluation index; calculating the power grid strength based on the real-time monitoring data; according to the power grid strength, determining each index weight coefficient of the system under each power grid strength grade; calculating an operation quality comprehensive score according to the index score and the weight coefficient of each index of the system; and according to the comprehensive score of the operation quality, obtaining a final grade of the operation quality of the source network load storage multi-port system. According to the method, the overall performance evaluation of the system can be realized by adaptively adjusting the weight based on the power grid strength, and the system operation is optimized on the basis, so that the safe and efficient system operation is realized.

Systems, methods, and apparatuses disclosed herein can enable a computing system to connect to a network. These systems, methods, and apparatuses can connect the computing system to the network through multiple network connections. These multiple network connections represent distinct, physically separate signal pathways to improve security. This physical separation, or isolation, from one another creates distinct boundaries between these multiple network connections, for example, to minimize shared resources these systems, methods, and apparatuses. These distinct boundaries can reduce the vulnerability of these systems, methods, and apparatuses to, for example, attacks that exploit shared sources among these systems, methods, and apparatuses, data leakage within these systems, methods, and apparatuses, and / or unauthorized access to these systems, methods, and apparatuses. Moreover, these distinct boundaries can additionally enhance security by improving fault isolation, enforcing access control, and / or supporting secure communication protocols, among others, within these systems, methods, and apparatuses.

The invention relates to the technical field of medical marketing data sharing, in particular to a medical marketing data sharing method and system based on a block chain, and the method comprises the steps: compiling a plaintext description of a medical marketing business rule into an arithmetic circuit with a multi-port structure, generating a verification key, and deploying the verification key in a block chain smart contract in the block chain; the verification node initiates a verification request containing a data type, a service rule identifier and a time period identifier; the medicine enterprise node and the medical institution node respectively load the local privacy data to the input port and generate a corresponding first zero-knowledge proof and a corresponding second zero-knowledge proof; and the verification smart contract loads a verification key according to the time period identifier to carry out cooperative verification on the two zero-knowledge certificates and generates a conclusion for uplink storage. According to the method, cross-subject association verification is realized on the premise of not converging original data, and the accuracy and auditing performance of compliance judgment are improved through a time period self-adaptive threshold value.

The invention discloses an optical storage charging-UPQC multi-port cycle calendar life cost collaborative energy management method, and belongs to the technical field of electric energy quality management and optical energy storage collaborative control of a power distribution and utilization system. The invention aims to provide a light storage and charging-UPQC multi-port cycle calendar life cost collaborative energy management method which introduces a photovoltaic flexible power regulation and'cycle + calendar 'combined life modeling mechanism and embeds energy storage life cost into a model predictive control (MPC) framework on the premise that UPQC undertakes power quality compensation. According to the invention, a model predictive control (MPC) framework is adopted to carry out cooperative energy management on photovoltaic flexible output, energy storage power distribution and charging load limit, and when the SOC approaches a boundary, photovoltaic load reduction and power change rate limitation are automatically triggered. According to the method, energy storage deep circulation and excessive loss can be actively inhibited while the energy balance of the direct-current bus is maintained, and the comprehensive targets of electric energy quality treatment, energy stabilization and energy storage life protection are achieved.

The invention belongs to the technical field of power system operation and control, and particularly provides a microgrid distributed robust optimization scheduling method considering source load uncertainty and electricity-hydrogen-carbon coupling. Comprising the following steps: constructing an electricity-hydrogen-carbon-heat four-dimensional collaborative micro-grid energy flow framework comprising a multi-port alternating current and direct current bus, a hydrogen production storage and transportation subsystem, a carbon capture methanation subsystem and a cross-stage thermodynamic energy cascade network; establishing an IGDT-based source-load bilateral uncertainty dynamic pricing model, and selecting a risk avoidance or opportunity seeking pricing model as required; a multi-agent game double-layer interaction model with a micro-grid operator as a leader and a load aggregator and a charging station as followers is constructed, and a nested part can observe a Markov decision process; and a privacy protection multi-agent deep reinforcement learning algorithm in which a maximum entropy framework and a CTDE mechanism are introduced is adopted for solving. According to the method, the problem of low-carbon operation of the micro-grid in a source load uncertainty environment is solved, and collaborative improvement of economical efficiency, low-carbon performance and robustness is realized.

The invention discloses a multi-port hybrid charging pile power pool reinforcement learning scheduling method and system, and relates to the technical field of computer data processing. The reinforcement learning scheduling method and system for the multi-port hybrid charging pile power pool comprises the following steps: S1, periodically collecting port scheduling data, and preprocessing the port scheduling data; s2, constructing and training a vehicle target SOC prediction model, outputting a vehicle target SOC, evaluating charging urgency of each accessed vehicle, and dividing scheduling priority levels; s3, constructing a port power distribution model, outputting a power distribution value of each charging port, and issuing the power distribution value to a power control interface for execution; and S4, evaluating power scheduling execution deviation, and entering a protection mode when evaluation is abnormal. The problems that the total power of the charging pile cannot be flexibly scheduled due to fixed-proportion power distribution and topological isolation of alternating-current and direct-current ports, high-power resources are occupied by high-electric-quantity vehicles, and charging of low-electric-quantity vehicles is limited are solved.

A multi-port flexible interconnection device for distribution networks, and a control method and system thereof are provided. The multi-port flexible interconnection device includes a bipolar output inverter and a multi-port flexible interconnection module connected in series therewith. The multi-port flexible interconnection module includes multiple unipolar output inverters which share the same common connection bus and are connected in parallel, and AC output ports of each unipolar output inverter are interconnected with different feeders. By adjusting an AC output voltage in series between the feeders, active and reactive power decoupling control for each feeder is achieved. Energy balance for the entire device and its components is maintained by controlling an internal circulating current of the bipolar output inverter. The provided introduces the multi-port flexible interconnection module to interconnect multiple feeders in a distribution network, enabling flexible power interchange between feeders and facilitating a flexible AC distribution network featuring multi-terminal interconnection.

The invention discloses a hierarchical step-by-step multi-target genetic optimization method for a multi-port composite magnetic flux modulation motor. The method comprises the following steps: determining a basic topological structure of the motor and completing a preliminary topological design; constructing a parameterized model of the multi-port composite magnetic flux modulation motor, and screening all variables possibly influencing the performance of the motor; defining an optimization target and related constraint conditions of the multi-port composite magnetic flux modulation motor, and selecting performance target parameters sensitive to a power transmission system of the hybrid electric vehicle; on the basis of analysis of multiple operation conditions of the motor, in order to ensure that optimization can be realized under all the operation conditions, a step-by-step optimization method is adopted for the multi-port composite magnetic flux modulation motor, and an optimization result of the previous step is used as an initial scheme of the next step; and drawing a Pareto curve optimized in each step, and screening out an optimal topological structure from the curve as an optimization result. The invention provides a simpler and more convenient and high-precision optimization strategy for the multi-port composite motor.

A method of synchronizing a network side time sensitive network (TSN) converter (NW-TT) module within a user plane function (UPF) in a communication network with a master clock (GM) in the 5G time domain of the communication network is described. The method comprises the step of adjusting the clock frequency of an N3 interface to enable the N3 interface to be synchronized with the clock of a GM. The method includes generating one or more pulses on a pin of the N3 interface. The method includes detecting the one or more pulses on a pin of the NW-TT module. The method includes determining a time offset value (Offset NW-TT) between the N3 interface and the NW-TT module. The method includes adjusting a time or clock frequency of the NW-TT module using a determined time offset value (Offset NW-TT), thereby enabling time synchronization of the NW-TT module and the GM.

Embodiments herein provide sounding reference signals (SRS) enhancements to support flexible mapping of multiple SRS ports to multiple SRS resources. In some embodiments, a SRS-ResourceSet that includes multiple SRS-Resources configured as a set, wherein multiple SRS ports are distributed over more than one SRS-Resource of the set. A user equipment may transmit a SRS from each SRS port included in the multiple SRS-Resources of the set.

Embodiments herein provide sounding reference signals (SRS) enhancements to support flexible mapping of multiple SRS ports to multiple symbols. In some embodiments, a network node may send, to a user equipment (UE), a sounding reference signal (SRS) configuration that maps multiple SRS ports across multiple symbols using a time domain orthogonal cover code (TD-OCC) codebook. The UE may transmit a SRS from each SRS port using the multiple symbols. The network node may provide feedback based on the SRS from each SRS port.

The invention relates to the technical field of wireless communication testing, and discloses an automatic detection and evaluation method and system for the radio frequency performance limit of multi-antenna wireless equipment, and the method comprises the steps: defining a target port and an interference port for multi-port equipment, constructing an automatic detection topology through a program-controlled radio frequency switch matrix, and carrying out the automatic detection of the radio frequency performance limit of the multi-antenna wireless equipment; and controlling the equipment to enter a full-port synchronous concurrent transmission state with a high duty ratio. In this state, power search is performed on the target port to lock the initial limit power point, and further multi-dimensional evaluation including thermal steady state drift analysis and environmental isolation verification based on a silent window is performed to confirm an effective limit power value. And traversing all ports by the system, repeating the steps, summarizing data, and calculating the consistency range and the rated power of the whole machine. According to the invention, through physical reproduction, heating accumulation and electromagnetic crosstalk environment, accurate evaluation of radio frequency performance of equipment under extreme working conditions and automatic attribution of a thermal failure mechanism are realized.

Semiconductor devices, packaging architectures and associated methods are disclosed. In one embodiment, an integrated circuit (IC) base die is disclosed. The IC base die is configured to couple to a stack of memory die and includes a first port including a die-to-die (D2D) interface to couple to an IC device. A second port includes a memory interface to access a memory other than the stack of memory die. Memory control circuitry controls memory access operations directed to the memory other than the stack of memory die.

A multi-port valve includes a valve housing, a valve core rotatably mounted to the valve housing and a sealing gasket disposed between the valve housing and the valve core. The valve housing defines a plurality of valve ports. The valve core defines a plurality of flow channels. The sealing gasket is provided with a plurality of openings arranged at intervals in a circumferential direction and a plurality of first ribs respectively arranged between adjacent two of the openings. The flow channels extend through an end of the valve core facing the sealing gasket to define a plurality of channel ports; the channel ports are arranged at intervals in a circumferential direction with a plurality of second ribs respectively arranged between adjacent two of the channel ports. each of the first ribs or second ribs forms two wing portions at circumferential sides thereof to make a portion of the first or second rib has a larger circumferential width than other portion thereof.

The invention discloses an electromagnetic field shaping method based on multi-port excitation-structure cooperation, and belongs to the technical field of electromagnetic wave propagation and electromagnetic device design. According to the method, a unified analysis relation among the multi-port excitation amplitude phase, the variable structure and the target field distribution is established, the limitation that an existing IMPM method is only suitable for single-port-structure field forming is broken through, and collaborative optimization of the structure and multi-port excitation is achieved; according to the method, through the conversion relation between the impedance matrix and the scattering matrix, full-wave simulation is prevented from being repeatedly called in the optimization process, the calculation cost is greatly reduced, and efficient target field construction and optimization are achieved; according to the method, the auxiliary discrete ports are adopted to obtain the field response under the action of the structure, and the linear superposition relation of the field response of the ports is utilized to realize the rapid calculation and reconstruction of the target field distribution, so that the universality and reusability of the method are improved, and the method is suitable for different platforms such as a waveguide device and a free space antenna.

This paper describes a multi-port planar antenna system with digital reconfigurability to adjust the beamdirection function of the system. A substrate is provided, and a grid of parasitic elements is printed on the surface of the substrate. One or more driving radiating elements, such as monopole antennas or dipole antennas, are printed on the substrate near the parasitic elements. Switching elements between adjacent parasitic elements are then configured to guide the radiation direction in a specific direction in the azimuth plane. The small form factor of this planar antenna system can be used in MIMO applications employed by fifth-generation (5G) devices such as mobile phones, Internet of Things (IoT) devices, and vehicles.

A system, power allocation method, and device for multi-port universal serial bus power control is provided. The system includes a plurality of power modules, a plurality of charging ports, where each charging port of the plurality of charging ports is connected to a power module of the plurality of power modules, and a controller, where the controller individually and dynamically allocates power to the plurality of power modules.

The invention provides a network construction type energy storage system and a multi-phase multi-port motor, and relates to the technical field of energy. The networking type energy storage system comprises a plurality of battery energy storage units and a multi-phase multi-port motor. The multi-phase multi-port motor comprises a stator and a rotor, the stator is provided with a stator winding, the rotor is provided with m sets of rotor windings, the m sets of rotor windings form m mutually independent electrical ports, m is greater than or equal to 1, and m is an integer; the stator winding is connected with a power grid; each battery energy storage unit comprises a battery unit and a power adjusting unit, and the battery unit is electrically connected with an electrical port formed by one set of rotor windings through the power adjusting unit. By adopting the scheme, the technical problem that circulating current is easily generated when a plurality of power regulation systems in the existing energy storage system are operated in parallel can be solved, and the power loss and the equipment temperature are reduced.

The invention discloses a single-stage multi-port converter DC side current ripple suppression method and device and a storage medium, and the method comprises the steps: obtaining an initial three-phase sinusoidal modulation wave according to the AC side three-phase voltage and current of a converter; obtaining a battery current control value according to the DC side photovoltaic voltage and current; obtaining an asymmetric carrier wave according to the DC side photovoltaic voltage and the energy storage battery voltage; according to the initial three-phase sinusoidal modulation wave and the asymmetric carrier wave, a battery current actual value is obtained, iteration is carried out according to an error between the actual value and a control value, and a zero-sequence component when the error is smaller than an error tolerance is obtained; injecting the zero-sequence component into the initial three-phase sinusoidal modulation wave to obtain an improved modulation wave; and intersecting the improved modulation wave with the asymmetric carrier wave to obtain a PWM driving signal of the converter. According to the invention, direct-current side current ripple suppression and power distribution between optical storage are realized through a zero-sequence component injection method, and the method has the characteristics of remarkable ripple suppression effect, low implementation cost and the like.

The application provides a multi-port ESD protection device, all heavily doped regions in a first well region are connected to a first port; all heavily doped regions in a third well region, a first drift region, a second drift region and a sixth well region are connected to a second port; all heavily doped regions in a second well region between the first drift region and the second drift region are connected to a third port, and the application uses a parasitic SCR and / or a parasitic diode as an ESD current discharge structure between any two ports of the first port, the second port and the third port, so that the multi-port ESD protection device does not need a corresponding number of ESD devices, the chip area is greatly saved, and the competitiveness of the product is improved.

A method for processing a sample of a cell culture composition includes diluting the sample followed by filtering the diluted sample, wherein the dilution may be at least 10 parts by volume of a diluent to one part sample, and the filter may be a porous membrane with a molecular weight cutoff of less than 20,000 Daltons. The dilution may be carried out at a multiple-port dilution valve having a first condition and a second condition. The sample may be mixed with the diluent at a predetermined dilution ratio when the dilution valve is in the second condition.

The invention discloses a multi-port converter power distribution method, system and device and a medium. The multi-port converter power distribution method comprises the following steps: acquiring the running state information of a multi-port converter, and establishing a state vector; constructing a monotonic operator structure containing energy conservation, constraint, dynamic coupling and economic performance operators based on the state vector; distributing weights through the learnable coordination mapping layer to form an overall power distribution operator; using the reinforcement learning network to output a weight update amount; executing forward-backward split iteration in a control period and fusing all operator results to generate a global power distribution instruction; and issuing the instruction to each port for execution, calculating a bus voltage stabilization error, a power deviation and a constraint residual error, and feeding back an update strategy. According to the method, a decomposable monotone operator structure is constructed under a reinforcement learning framework, the system is kept stable under a multi-constraint condition, and the bus voltage control precision and the power distribution efficiency are improved.

We provide a multi-port interleaved charge pump bidirectional DC-DC converter that allows multiple ESSs to be connected to a DC microgrid system with a single bidirectional DC-DC converter. [Solution] The system comprises two two-phase interleaved charge pump bidirectional DC-DC converters, three charge pump capacitors, and a drive circuit that controls each switch of the DC-DC converters. The negative terminals of the two DC-DC converters are common-connected, the low-voltage sides of the two DC-DC converters are connected to two different low-voltage DC voltage sources, the high-voltage sides of the two DC-DC converters are multiple-connected, and the inductors that constitute the interleaved system but are not connected to the charge pumps are connected to the connection point via three charge pump capacitors and connected to one high-voltage DC voltage source.

Technologies for dynamically reconfiguring a radio unit (RU) coupled to a cellular site of a cellular network are described. An RU is initially deployed with a default configuration having a plurality of radio frequency (RF) paths coupling the RU to a multi-port antenna that is serving a particular sector of a cell. Upon detecting increased demand for capacity within the particular sector, the RU is reconfigured by splitting the RU into a plurality of logical sub-sectors, each logical sub-sector of the RU having a respective subset of the plurality of RF paths coupled to a respective subset of ports of the multi-port antenna. A default configuration of 4T4R can be transformed into two 2T2R logical sub-sectors. A default configuration of 8T8R can be transformed into four 2T2R logical sub-sectors, or, two 4T4R logical sub-sectors, or, two 2T2R and one 4T4R logical sub-sector.