395 results about "System capacity" patented technology

The invention discloses a power coupling-considered capacity ratio estimation method for a network-constructing / network-following multi-machine hybrid system, and the method comprises the steps: building a GFL-GFM hybrid system model, combining VSG power coupling small signal modeling and a dynamic relative gain matrix (DRGA), and quantifying the coupling strength of active / reactive power to output voltage; the frequency domain impedance characteristic of the GFM converter is simplified, and an ideal voltage source series equivalent reactance equivalent model is constructed; deriving an analytical relationship between a generalized short-circuit ratio (gSCR) and a capacity ratio based on the model, and generating a ratio formula in combination with engineering boundary sub-scenes to form a ratio range suitable for multiple scenes; for coupling time-varying characteristics, a closed-loop mechanism of'mixed mode-coupling sensing-correction calculation-execution feedback 'is constructed, and the ratio is dynamically adjusted. According to the method, coupling quantization and multi-machine coordination control are deeply fused, the problem that the external characteristic model precision and the multi-working-condition adaptability are difficult to consider under complex environment coupling is effectively solved, and the engineering applicability of the hybrid fan system is enhanced.

The invention relates to the technical field of power system automation, in particular to a climbing-frequency modulation coordinated optimization method and system considering energy storage capacity uncertainty, and the method comprises the steps: building an opportunity constraint model of an energy storage system based on the capacity uncertainty, and enabling the opportunity constraint model to be used for describing a reliable feasible region under the deviation of energy storage electric quantity; establishing an energy storage system linearization model considering a climbing-frequency modulation power unified constraint, and realizing power coupling and sharing constraint description of two types of adjustment services; aiming at the nonlinear characteristic of the gradeability of the thermal power generating unit, establishing a piecewise linearization model of the gradeability by adopting a piecewise linearization method; and establishing a thermal power-energy storage combined climbing-frequency modulation coordinated optimization model, and solving the optimization model by adopting a quadratic programming method to obtain the climbing power and frequency modulation reserve capacity of the thermal power generating unit and energy storage. According to the method, the actual available range of the energy storage system capacity can be dynamically reflected, the electric quantity out-of-limit risk caused by the uncertainty of the energy storage capacity is avoided, and the reliability of the scheduling result is improved.

The invention discloses a data storage method and device and a computer storage medium, and the method comprises the steps: obtaining a system storage capacity, a new request resource capacity and a system used capacity, and obtaining a system capacity utilization rate based on the system storage capacity and the system used capacity; in response to the fact that the system capacity utilization rate reaches a threshold value and the current residual capacity does not meet the new request resource capacity, determining a storage capacity needing to be expanded based on the system storage capacity, the new request resource capacity, the used capacity and a preset target utilization rate, creating an expansion space corresponding to the storage capacity, and updating the system storage capacity; based on the updated system storage capacity, determining data to be stored of each node, and determining a data block to be migrated; migrating the to-be-migrated data block to the target node, and updating the data storage state of the current node; through the method, the change of the storage capacity can be dealt with more intelligently.

The invention discloses a multi-mode underwater acoustic communication system and communication method based on a heterogeneous dual-core architecture, and belongs to the technical field of underwater acoustic communication. The multi-mode underwater acoustic communication system comprises a main control module, an acquisition module and a transmitting module; the main control module adopts a dual-core heterogeneous processor OMAPL138 formed by an ARM core processor and a DSP core processor; inter-core communication is carried out between the ARM core processor and the DSP core processor through a shared memory and interruption; the ARM core processor is responsible for protocol analysis, task scheduling and man-machine interaction, and the DSP core processor focuses on signal processing and real-time control and integrates four communication systems, a channel evaluation module and the like. The problems that application of a single communication mode is limited and underwater acoustic communication links in different complex sea areas are unstable are effectively solved, and the deep sea area underwater vehicle information collaboration and return and deep sea area observation and monitoring network system capacity are effectively improved and guaranteed.

The invention relates to the technical field of e-commerce, and discloses an e-commerce customer service processing system with intelligent quality inspection and high-concurrency simulation capabilities. According to the invention, millisecond index calculation and real-time alarm of full customer service dialogues are realized through a bypass monitoring technology, a traditional lagging mode of post sampling inspection is changed, and management response is converted from passive remedy to active intervention; a high-concurrency pressure simulation module reproduces a business scene in an e-commerce peak period by simulating a script of a real user behavior and a distributed cluster, and a real basis is provided for system capacity planning and stability guarantee; the integrated intelligent verbal skill evaluation module deeply analyzes the dialogue quality from multiple dimensions such as semantics, compliance and emotional change based on a natural language processing technology, and generates an evaluation report with guidance, so that the professional level of customer service is improved; and the service quality, the operation robustness and the management intelligence level of the e-commerce customer service system are improved.

The invention provides a district-based distributed power consumption capability assessment method and system and a medium, and belongs to the technical field of power system capability assessment. The method comprises the steps that pre-processed associated data parameters are classified and stored, and a structured feature database is generated; constructing a transformer area load vector model according to the load power flow direction of the power distribution transformer areas of the power grid line, screening and classifying a plurality of power distribution transformer areas with similar characteristics of the line, and constructing a line load quantification model based on the structured characteristic database and the transformer area load vector model; obtaining a power distribution area consumption capability range according to the structured feature database and the area load vector model, and obtaining a line consumption capability range according to the structured feature database and the line load quantification model; and on the basis of the principle of minimizing the two, combining the power distribution area consumption capability range and the line consumption capability range to generate an actual evaluation result of the power grid consumption capability. According to the method, the district-based distributed power consumption capability evaluation precision can be effectively improved.

The invention provides a novel hybrid carrier multiple access scheme. According to the scheme provided by the invention, the energy propagation concept of the hybrid carrier is combined with a frequency division multiple access model, and a specific operation method and a processing flow of the hybrid carrier processing and the multiple access processing of the power signal in the sending and receiving processes are provided; and the requirements of signal anti-interference capability, transmission efficiency and multi-user and multi-time-space under an ad hoc network of a power wireless private network are met, and the method is called as hybrid carrier non-orthogonal multiple access (HC-OFDMA). Due to the fact that the energy dispersion capacity is enhanced, a plurality of users can share the same spectrum resource at the same time through non-orthogonal distribution of a power domain, the spectrum utilization rate can be remarkably improved, power distribution can be dynamically adjusted, transmission is optimized according to channel conditions of the users, more users are supported to access at the same time, the system capacity is improved, and the system performance is improved. The method is especially suitable for high-density users and large-scale Internet of Things scenes.

The invention discloses a wireless communication network optimization method and system based on multi-intelligent-reflecting-surface grouping, and belongs to the field of intelligent-reflecting-surface-assisted wireless communication, and the method comprises the steps: building a multi-IRS-assisted wireless communication network according to the coverage characteristics of the equivalent cascade link information of a plurality of IRSs; according to the statistical property of the optimal beam domain channel state information, intelligent pre-grouping is carried out on reflection units of a plurality of IRSs, and each group of units share the same reflection coefficient; analyzing array performance gains of different pilot frequency overhead under a single-user single-antenna cascade channel; a system capacity of a multi-IRS intelligent packet assisted wireless communication network under a Rice channel is evaluated. According to the method provided by the invention, the number of pilots for estimating the channels related to the IRS can be greatly reduced while the multi-user communication service quality is improved.

Provided are a communication method and a communication apparatus, which can be applied to a non-terrestrial network (NTN) or a terrestrial network (TN). The communication method comprises: a communication device receiving first indication information, wherein the first indication information is used for indicating index value information of an OCC sequence; and on the basis of OCC-related configuration information and the first indication information, determining an OCC sequence corresponding to each resource group in transmission resources. In this way, by means of introducing an OCC multiplexing technique, the system capacity efficiency of a network (an NTN or a TN) is improved, and interference between different users can be reduced. Moreover, for the case where time-frequency resources of paired UEs are not aligned, a solution is further provided, such that OCC sequences of overlapping resources between the paired UEs remain orthogonal.

The invention discloses a capacity configuration optimization method for an energy storage system, relates to the field of energy storage planning, solves the problem of energy waste of the energy storage system, and comprises the following steps: collecting historical environmental data of a region where a power generation facility corresponding to the energy storage system is located and historical power consumption of a power grid corresponding to the energy storage system; analyzing the power generation performance of the power generation facility of the energy storage system and the power consumption performance of a power grid corresponding to the energy storage system to obtain a peak value operation time period, an average value operation time period and a valley value operation time period corresponding to the energy storage system; setting a system capacity configuration scheme of the energy storage system corresponding to the peak value operation time period and the valley value operation time period; analyzing the operation state of the energy storage system corresponding to the average operation time period, and setting a system capacity configuration scheme of the energy storage system in the average operation time period; the actual energy storage mode of the energy storage system is adjusted based on the system capacity configuration schemes corresponding to the peak value operation time period, the average value operation time period and the valley value operation time period, and stable operation of the energy storage system is guaranteed by improving the energy utilization rate.

The invention relates to the field of spaceflight measurement and control, and discloses a large-scale constellation multiple access measurement and control spread spectrum signal de-spreading bit width quantization method. Signal samples are counted, a noise deterioration factor and a bit width quantification model are respectively established, the de-spreading bit width is accurately expanded, and the optimal balance of resources and performance is realized. The method solves the problem that the detection range of strong and weak signals is limited when a single receiver detects multi-satellite same-frequency signals at the same time, remarkably improves the system capacity, and has the characteristics of quantizability, large dynamic range and multi-constellation adaptation.

The invention discloses a capacity-expanding anti-interference measurement and control communication method, which comprises the following steps of: 1, generating M alternative spread spectrum sequences; step 2, the transmitting end performs parallel combined spread spectrum, including parallel transmission, spread spectrum superposition and carrier modulation; wherein during spectrum spreading, in I and Q, any one alternative spectrum spreading sequence in one path is selected as a synchronization sequence, and all the remaining alternative spectrum spreading sequences are subjected to combined spectrum spreading; step 3, blind interference signal separation at a receiving end: at the receiving end, firstly carrying out carrier demodulation on all interference signals and measurement and control signals received by the array antenna, and then carrying out blind interference signal separation on observation signals after carrier demodulation to obtain separated expansion anti-interference measurement and control signals; and finally, recovering the expanded anti-interference measurement and control signal to obtain recovered data. According to the invention, parallel combination spread spectrum and blind interference signal separation processing are organically combined, so that the anti-interference capability of the measurement and control system can be ensured while the system capacity is improved.

In the NB-IoT NTN deployment, the coverage area can be as large as hundreds of thousand square kilometers. In such huge geography area, the number of IoT devices that need to access the satellite will be massive. In another hand, the UL capability of NB-IoT is severely suppressed by large repetition number due to the limited link budget. To enlarge the system capacity, multiplexing of UEs by usage of orthogonal cover codes (OCC) for NPUSCH format 1 and NPRACH is proposed in 3GPP as a Release 19 IoT NTN work item. The Invention incudes various methods of overlaying the OCC code to the NPUSCH and NPRACH; various procedures on support OCC for NPRACH and NPUSCH such as random access and connection establishment; other related 3GPP specification impact.

The invention provides a communication method and a communication device, and relates to the technical field of communication. According to the invention, multiplexing of resources occupied by multiple channels such as PDSCH and PUSCH can be realized, so that the system capacity is improved. The method comprises the following steps: receiving first information from network equipment, wherein the first information is used for indicating a first orthogonal sequence; on the first time-frequency domain resource, using a first orthogonal sequence to receive first data sent by the network device through a first channel, and / or, sending second data to the network device through a second channel; wherein the first channel comprises a physical downlink shared channel (PDSCH) and / or a non-physical downlink shared channel (NPDSCH), and the second channel comprises one or more of the following: a physical uplink shared channel (PUSCH), a non-physical uplink shared channel (NPUSCH), a physical random access channel (PRACH) or a non-physical random access channel (NPRACH).

The invention relates to an asymmetric fault ride-through cooperative control method and system for a virtual synchronous generator, and belongs to the technical field of power electronics and new energy power generation. Aiming at the problems of three-phase current asymmetry, overcurrent, transient instability and the like faced by a virtual synchronous generator when a power grid has an asymmetric fault, the method comprises the following steps: firstly, setting a negative sequence current reference to be zero through positive and negative sequence separation control so as to keep output current symmetry, and freezing a reactive power ring; secondly, comprehensively considering current amplitude limiting, voltage supporting capacity and system capacity, and dynamically calculating optimal solutions of positive sequence excitation reference amplitudes under different fault depths; finally, positive and negative sequence power components and excitation dynamic changes are considered, an active reference instruction real-time dynamic adjustment method is provided, and a power angle is controlled to be stabilized at a target value by adjusting a power reference value in real time. The method can effectively improve the transient stability during the fault ride-through period, maximally supports the power grid voltage while ensuring that the current is not out of limit, and improves the system capacity utilization rate.

The invention belongs to the field of satellite communication application, and relates to a low-orbit constellation-based hopping beam dynamic scheduling method and a low-orbit constellation-based hopping beam dynamic scheduling system. The method comprises the steps of firstly constructing a ground wave position model; then formulating a satellite selection strategy, selecting an access satellite of the current hopping beam period for each ground beam position, and determining a link establishment relationship between the satellite and the beam position; and then establishing a beam scheduling optimization model, establishing a weighted graph for all ground beam positions, coloring nodes in the weighted graph according to a weighted DSATUR algorithm, and scheduling beams according to the determined graph. According to the method, the ground wave position satellite selection access strategy, the satellite load balancing, the wave position service distribution, the satellite-ground link state and the priorities of different services are comprehensively considered, the optimization of the system capacity in the dynamic environment is realized by adjusting the weight, and the overall service satisfaction rate of the ground wave position is effectively improved.

Embodiments of the present disclosure provide an information processing method, a terminal, a network device, a communication system, and a storage medium. The information processing method is executed by a terminal, and comprises: determining first information; determining a DMRS of the terminal on the basis of the first information; and on the basis of the DMRS, sending an OCC-based multi-user multiplexed NPUSCH to a network device, wherein the DMRS of the terminal is orthogonal to DMRSs corresponding to other terminals in a same OCC multiplexing user group, and the terminals comprised in the same user group use the same time / frequency-domain resource. In this way, the terminal can achieve system capacity expansion on the basis of the design of orthogonal DMRSs, so that more users can be supported to perform uplink transmission on the premise of limited time-frequency resources and the limited transmit power of the terminal.

The invention discloses a communication method and device, relates to the technical field of communication, and can save air interface resources. The method comprises: a base station sending first information; a terminal receives first information, wherein the first information indicates a first parameter corresponding to an orthogonal cover code (OCC) category. The base station sends a second parameter, the terminal receives the second parameter, and the first parameter comprises the second parameter. And the terminal sends uplink information through the OCC category corresponding to the second parameter according to the second parameter and the first information. And the base station receives the uplink information through the OCC category corresponding to the second parameter. According to the scheme, the terminal receives the corresponding relation between the OCC category and the first parameter in advance. In this way, only the second parameter corresponding to the OCC category needs to be received and the OCC category does not need to be received again when the OCC is actually scheduled to be subjected to OCC coding. Therefore, the signaling overhead consumed by transmitting the OCC category is saved, and air interface resources are saved. In addition, data is transmitted in an OCC mode, the number of terminals sending uplink data can be increased, and the system capacity is improved.

The embodiment of the invention provides a neural network generation method and device for a multi-platform system, electronic equipment and a storage medium, the platform system comprises first equipment and at least one second equipment, and the method comprises the following steps: obtaining a training main network and a main network training data set, and pruning the training main network to generate a plurality of training sub-networks; based on the main network training data set, calculating to obtain a main network training gradient of the training main network and a sub-network training gradient of each training sub-network, and updating main network parameters of the training main network; taking the updated training main network as the main network of the first equipment; and performing neuron pruning on the main network based on the second system capacity of the second device and the neuron fraction of each main neuron, and generating the sub-network of the second device based on the pruned main network, thereby improving the reliability, the generation efficiency and the flexibility of network generation in the platform system.

The invention discloses an interference signal offset method based on modulation interference accurate reconstruction, and belongs to the technical field of satellite communication. The method comprises the following steps: carrying out symbol estimation, time delay estimation, carrier phase estimation and amplitude estimation of an interference signal on a mixed signal; carrying out carrier recovery on the mixed signal, reconstructing a symbol, and generating an interference signal for offset; carrying out time delay on the mixed signal, and carrying out time alignment on the mixed signal and a regenerated interference signal; using a channel response estimation method to counteract interference signals in the delayed mixed signals, and outputting residual low-speed signals; and carrying out carrier phase reduction on the residual low-speed signals to finish interference signal cancellation. The power spectrum density of the low-speed signals in the overlapped satellite communication system can be effectively reduced, and the system capacity of the low-speed signals is improved under the condition that the low-speed signals occupy the total satellite power.

Methods and systems for dynamic spectrum sharing between current cellular networks (e.g., Fifth Generation (5G) New Radio (NR) ) and emerging cellular network (e.g., Sixth Generation (6G) ) are described. The described embodiments improve the system capacity of the 6G system and ensure extended coverage of the 6G network, while also providing solutions for the smooth evolution of the 5G network to the 6G network. A example method of wireless communication, in accordance with the described technology, includes receiving, by a wireless device from a network node, a message comprising information indicative of an existence of a first resource for the 6G wireless system operating according to the 6G communication protocol, and performing, using the first resource, a transmission or a reception of a signal that is associated with the 5G wireless system operating according to the 5G communication protocol that is different from the 6G communication protocol.

Provided are a communication method and a communication device, the method comprising: respectively transmitting first data on at least one first segment of a time domain resource, the first data comprising data obtained after orthogonal cover code (OCC) coding; second data are transmitted on partial resources of at least one second segment of the time domain resource, the partial resources of the second segment are not overlapped with the first segment, and the partial resources of the second segment do not comprise first intervals located at the head and / or the tail of the second segment respectively; the first interval is the largest interval in the intervals between the adjacent segments corresponding to the at least one terminal device. According to the method, the system capacity of the segmented scene is improved by adopting a multi-user multiplexing mode.

The invention discloses a matching analysis and solving method for a tracking-networking hybrid converter based on a grid-connected voltage short-circuit ratio. The method comprises the following steps: step 1, analyzing a flexible mechanism of a tracking and networking type converter; 2, analyzing the capacity ratio constraint of the hybrid system; step 3, connecting the following-networking single station into a large power grid for flexible deployment; and step 4, calculating to obtain the in-station tracking-networking unit proportion considering the multi-new energy station feed-in. The invention discloses a matching analysis and solving method for a tracking-networking hybrid converter based on a grid-connected voltage short-circuit ratio, and the method comprises the steps: analyzing the transient response characteristics of a system under large disturbance according to the working conditions of different short-circuit ratios; and the correctness of the provided capacity matching strategy is verified, and the stable operation of the system is ensured.

The invention belongs to the technical field of power system capacity configuration, and discloses a pumped storage wind power interconnection grid-connected system capacity configuration method and system based on a stability domain. The method comprises the following steps: respectively drawing stability domains of alternative capacity configuration schemes of a plurality of pumped storage power stations and wind power stations about speed regulator parameters in the pumped storage power stations and phase-locked loop controller parameters in the wind power stations based on a system model of the pumped storage wind power interconnection grid-connected system; and judging the advantages and disadvantages of each alternative capacity configuration scheme through the boundary of the stability domain so as to obtain the optimal capacity configuration scheme of the pumped storage wind power interconnection grid-connected system. According to the method, advantages and disadvantages of alternative capacity configuration schemes are measured on the basis of the stability domain, and the influence of the power generation capacity configuration of the pumped storage wind power interconnection grid-connected system on the operation stability of the whole system is accurately evaluated, so that the operation stability of the system can be improved by selecting the optimal capacity configuration.

The invention relates to the technical field of wireless communication, in particular to an emergency LoRa communication method based on multi-band cooperation and dynamic resource modulation. The method comprises the following steps: S1, dynamically acquiring communication environment information, channel quality information and network load information; s2, dynamically analyzing and selecting an initial target spreading factor based on the information; s3, setting a preset factor optimization target by taking the minimum bit error rate as a target, and dynamically adjusting and obtaining a current optimal spreading factor; and S4, based on the current optimal spread spectrum factor, performing dynamic allocation of spectrum resources by adopting a dynamic channel allocation mechanism and a reinforcement learning algorithm of adaptive network load balance, and learning a network state in real time through the reinforcement learning algorithm so as to dynamically select an optimal channel allocation strategy to perform emergency communication. According to the method, communication parameters can be adaptively adjusted, the network efficiency and reliability are remarkably improved, the system capacity, the real-time performance and the robustness in a mobile scene are enhanced, and reliable communication guarantee is provided for rescue in an extreme environment.

The invention provides a signal transmission method and a communication device. The method comprises the steps that a configurable intelligent surface RIS device receives a signal from at least one first communication device; the signal is sent to at least two second communication devices through multiple beams, and the beam vector of the multiple beams is determined according to the beam vector of the single beam corresponding to each second communication device in the at least two second communication devices. Based on this, multiple second communication devices can be served at the same time through the RIS device, and the system capacity is improved.

The invention provides a communication method and device, equipment and a storage medium, and the method comprises the steps that network equipment sends a first signal, and the first signal is used for indicating at least one measurement gap MG needing to be cancelled. According to the method disclosed by the invention, when the MG conflicts with other services (such as communication services) with higher priorities, the services with higher priorities can be preferentially executed, so that the communication stability is ensured, and the system capacity is improved.

The invention provides an electric power auxiliary service-oriented hybrid energy storage frequency modulation system capacity optimization configuration method, which comprises the following steps of: aiming at a hybrid energy storage system, constructing an economic model and a technical performance model of the hybrid energy storage system; establishing a multi-objective optimization function, wherein the multi-objective optimization function comprises an economic performance index and a technical performance index; and based on the multi-objective optimization function and in combination with operation constraint conditions of the hybrid energy storage system, solving through an optimization algorithm to obtain a capacity configuration scheme of a power type energy storage unit and an energy type energy storage unit in the hybrid energy storage system. The universal capacity configuration method can adapt to different frequency modulation scenes and different regional transaction rules, and the economical efficiency of hybrid energy storage participating in frequency modulation is improved.

Embodiments of the present application provide a multi-split air conditioner, a control method, a controller and a storage medium. The method comprises: obtaining indoor temperature and set temperature for each indoor unit in an open state to determine a temperature difference; selecting a first target indoor unit and a second target indoor unit corresponding to a temperature difference of the first target indoor unit from all indoor units; and controlling the opening degree of a throttling device of the first target indoor unit and / or the second target indoor unit, so that the total load demand of all indoor units is greater than a preset load demand. Embodiments of the present application can adjust the state of the throttling device of different indoor units, stagger the peak and valley of the load demand of different indoor units, realize the peak and valley suppression and coordination of the load demand of multiple indoor units, maintain the stability of system capacity and demand, and solve the problems of frequent start-stop of the compressor or large frequency fluctuation range of the compressor in the low load state of the system capacity and demand under the existing control method, resulting in non-energy-saving operation, high compressor failure rate and other problems.

Provided in the present application are a communication method and a communication apparatus. In the method, a meta-surface directly covers a first apparatus, or performs near-field coverage in proximity to the first apparatus at an extremely small spacing, and by means of reflection characteristics of the meta-surface, a plurality of propagation paths are separated from each other, or the degree of spatial isolation of the plurality of propagation paths is improved. The first apparatus receives a first reference signal from a second apparatus by means of the meta-surface, and performs rank-enhanced channel measurement on the basis of the first reference signal, so as to obtain measurement information of a channel between the first apparatus and the second apparatus; and the first apparatus sends first indication information to the second apparatus, wherein the first indication information is used for indicating at least one of multipath angular spread information and multipath angle information, or indicating a rank enhancement activation mode and a rank enhancement activation threshold value. Therefore, the first apparatus and the second apparatus can perform interaction on the basis of rank enhancement activation intervals, and thus a transmission rank can be improved on the basis of the meta-surface and a response difference for multipath angle information, thereby improving the system capacity.