17results about How to "Improve access capabilities" patented technology

The invention discloses a transformer area side energy storage type electric energy quality comprehensive treatment method, which comprises the steps of monitoring and data analysis, voltage out-of-limit control, power out-of-limit control, reverse transmission prevention control, voltage reactive power control, source network load storage coordinated optimization, distributed photovoltaic absorption, comprehensive line loss reduction and the like. The transformer area operation parameters are monitored in all directions, the big data analysis technology is used for analyzing and processing real-time detection data, the functions of transformer area side voltage out-of-limit control, power out-of-limit control, reverse transmission prevention and the like are achieved, and the transformer area side electric energy quality can be effectively improved; the distributed photovoltaic bearing capacity and the access capacity of the alternating current charging pile of the electric vehicle are improved, the comprehensive line loss rate is reduced, the comprehensive line loss can be reduced by 10%, the distributed photovoltaic bearing capacity can reach 150%, the access capacity of the alternating current charging pile of the electric vehicle can be improved by 200%, and 100% consumption of the distributed photovoltaic is achieved.

The invention discloses a measurement and correction method for frequency coupling sequence admittance of a network-forming converter system, and the method comprises the steps: injecting three-phase voltage disturbances with different frequency values into the network-forming converter system for a plurality of times, and obtaining output voltage and current response data; according to the voltage and current response data, obtaining a frequency-coupled sequence admittance measurement result; obtaining a compensation factor of phase correction; and performing phase correction by using the compensation factor to obtain an optimized sequence admittance result. According to the technical scheme provided by the invention, the impedance measurement of the grid-connected system is realized by adopting a grid-connected point disturbance signal injection mode, and the power grid impedance is estimated through the collected impedance data; and phase correction is carried out on the measured frequency coupling sequence admittance coupling component by considering the influence of the power grid impedance, so that the measurement precision of the frequency coupling sequence admittance of the grid-connected system of the network construction type converter is improved, the accurate analysis of the stability of the grid-connected system of the network construction type converter is facilitated, and the scheduling and operation strategies of the system are optimized.

The invention discloses a service processing method and device, electronic equipment and a computer readable medium, and relates to the technical field of computers, one specific implementation mode comprises the steps that a service processing request is received, and a corresponding right and interest identifier is determined; determining a corresponding business dimension according to the right and interest identifier, calling an attribute library, and obtaining a corresponding doctor identifier list according to the business dimension and the right and interest identifier; acquiring operation data of a user on the doctor identifier list, and determining a target doctor identifier according to the operation data; according to the right identifier and the target doctor identifier, executing a right cancel-after-verification process and obtaining user right information; and executing the corresponding business workflow based on the user right and interest information. Therefore, the business value verification can be rapidly enabled, the business processing efficiency can be improved, and the labor cost can be reduced.

The application is suitable for the technical field of Internet of Things electric energy meter, and relates to a method, medium and terminal for connecting type A expansion module of Internet of Things meter to downlink equipment, which comprises the following steps: a downlink function unit establishes a communication link with a downlink expansion device; the downlink function unit informs an Internet of Things meter management module that the downlink expansion device has been connected; the Internet of Things meter management module and the downlink function unit perform handshake authentication; the Internet of Things meter management module and the downlink function unit perform data interaction, including routing forwarding and security encryption and decryption processing of uplink communication messages and downlink communication messages according to a preset routing strategy and a security encryption and decryption strategy; and the downlink function unit periodically sends a heartbeat command to the Internet of Things meter management module to maintain the connection state of the downlink expansion device. The application has the ability to connect the type A module of the Internet of Things meter to the wireless communication or carrier communication of the downlink equipment, improves the power supply capacity of the downlink expansion device, reduces the wiring trouble of field installation, and greatly improves the networking capacity of the downlink equipment of the Internet of Things meter.

The invention discloses a distributed 5G base station-containing virtual power plant scheduling method and system, and relates to the technical field of virtual power plant dynamic regulation and control, and the method comprises the steps: introducing a communication load rate to describe a 5G base station characteristic model; establishing a 5G base station refinement model based on the base station electrical load demand model, the base station self-contained energy storage schedulable capacity evaluation model and the base station self-contained energy storage participation power grid dispatching interaction model; and the energy management strategy of the base station is optimized and adjusted through VPP scheduling. According to the virtual power plant scheduling method containing the distributed 5G base station, the energy storage system of the 5G base station can better respond to the scheduling requirement of the power grid through the self-contained energy storage participation power grid scheduling interaction model of the base station, necessary frequency adjustment and peak-valley load balance are provided, the flexibility of the power grid is enhanced, the reliability and stability of the power grid are improved, and the scheduling efficiency of the power grid is improved. Through the dynamic regulation and control architecture of the virtual power plant, distributed resources such as a 5G base station and the like can be effectively integrated, and the access capability of a power grid to renewable energy sources is improved.

The invention discloses a wireless communication method, device and equipment, and belongs to the field of communication, and the wireless communication method comprises the steps that a terminal obtains first information; wherein the first information comprises at least one of the following items: at least one uplink carrier group, at least one downlink carrier group, at least two uplink carriers and at least two downlink carriers; the terminal determines a target uplink carrier according to the first information, and the terminal sends first uplink random access information based on the target uplink carrier; and / or, the terminal determines a target downlink carrier according to the first information, and the terminal receives first downlink random access information based on the target downlink carrier.

This utility model discloses a 10G xPON OLT STICK optical module, including a 10G xPON OLT MAC unit, an XFI interface unit, a digital diagnostic control unit, a soft-start unit, a power supply unit, a clock unit, a QSPI Nor flash unit, a 10G xPON OLT Driver unit, an APD boost / burst RSSI sample-and-hold unit, an EA negative pressure control unit, a TEC temperature control unit, and an XGSPON OLT BOSA unit. This utility model integrates MAC functionality, supports parallel 10G PON and active Ethernet services, supports multi-vendor interoperability, complies with ITU-T G.9807.1 standard specifications, and provides high-bandwidth access capabilities for 10G PON FTTH / FTTB. It supports small pluggable (SFP+) symmetrical 10Gb / s OLT modules for use with routers and switches.

The invention discloses a low-voltage single-phase power supply method suitable for high-proportion distributed source load access, and the method comprises the steps: monitoring three-phase current in real time, and controlling a three-phase converter to transfer unbalanced current among three phases when unbalance occurs, so as to enable the three-phase current to tend to be balanced; monitoring power grid harmonics in real time, and controlling the converter to generate reverse harmonic current for counteracting; the output of the converter is dynamically adjusted according to network voltage and reactive power requirements, reactive power compensation is realized, and voltage stability is maintained; an optimization model is established, energy coordinated optimization scheduling is achieved, and the energy utilization efficiency is improved; operation parameters are monitored in real time, the power grid is optimized and controlled, the stability and the capacity of the power grid are improved, and better flexible access conditions are provided for high-proportion distributed source loads; the problems of low-voltage three-phase imbalance, voltage fluctuation and flicker, harmonic waves, voltage out-of-limit and the like can be solved on site, the power supply quality and reliability of rural areas are improved, more stable power supply is provided for residents in the rural areas, and therefore the living quality is improved.

The invention relates to a non-ground network searching method and device based on auxiliary information, equipment and a medium. The method comprises: determining auxiliary information for a terminal to perform non-ground network search, the auxiliary information comprising: a first type of auxiliary information: calculating according to a current pointing angle of the terminal to a base station and gain information of a terminal antenna, the terminal satisfying a minimum communication requirement; according to the second type of auxiliary information, a GPS signal of the terminal is searched, and the GPS signal is effective; according to the third type of auxiliary information, based on the current POI information, an access environment of a non-ground network exists; judging whether the terminal meets the requirements of the first type of auxiliary information, the second type of auxiliary information and the third type of auxiliary information or not in the current environment in sequence; if so, accessing the terminal to a non-ground network; and if one item is not satisfied, the terminal is not accessed to the non-ground network. According to the invention, the non-ground network access capability of the terminal in a complex scene can be improved, and the service recovery time of the terminal is shortened.

The invention discloses a method and an apparatus in a node used for wireless communication. A first receiver receiving a plurality of reference signals; selecting a first reference signal, wherein the first reference signal is one of the plurality of reference signals; the first transmitter determines a target PRACH opportunity group; a first random access lead code is sent in the target PRACH opportunity group; wherein the step of determining the target PRACH opportunity group comprises the following steps of: randomly selecting a target PRACH opportunity from a first PRACH opportunity set at an equal probability; each PRACH opportunity in the first PRACH opportunity set is mapped to the first reference signal and belongs to a PRACH opportunity group comprising K PRACH opportunities, and the K is a positive integer greater than 1; the first class of periods comprise a positive integer number of association mode periods, and the first PRACH opportunity set depends on the first class of periods; the target PRACH opportunity group comprises K PRACH opportunities, and the target PRACH opportunity is one of the K PRACH opportunities included in the target PRACH opportunity group.

The application discloses a kind of based on 5G-A large-scale internet of things equipment connection management method and system, it is related to internet of things technical field.The method includes: obtaining the equipment characteristics and coordinates of equipment cluster, form characteristic set and coordinate set;Obtain mobile parameter set from characteristic set by equipment movement analyzer, and compensate the compensation coordinate set of the coordinates to the direction away from base station;Combining characteristic set, mobile parameter set and compensation coordinate set, by mobile signal quality analysis path evaluation and iteration optimization, obtain optimized access parameter set;According to the parameter set, equipment cluster is accessed to 5G-A internet of things.The system contains data acquisition, mobile analysis and coordinate compensation, access parameter optimization and equipment access module.The application realizes the full-dimensional adaptation of equipment static attribute, dynamic movement and spatial position, improves the connection stability and resource utilization, adapts multi-scene large-scale equipment access demand.

The invention discloses a new energy vehicle and power grid fusion interaction potential assessment method and system, and the method comprises the steps: obtaining a first parameter of a new energy vehicle, defining a user utility function and an agent profit function according to the first parameter, and constructing an interaction strategy behavior between an electric vehicle user and a charging station agent; based on the interactive strategy behavior, designing an evolutionary game model between the agent and the user, and searching strategy equilibrium between the user and the agent through an iterative algorithm; based on strategy equalization, calculating the shortest arrival time of the user responding to the charging and discharging demand by using a Wardrop first balance principle; and establishing a scheduling potential evaluation model under the condition of comprehensively considering the user activity type and the historical credit influence. The method optimizes the operation efficiency of the power grid, promotes the deep fusion of the new energy vehicle and the power system, improves the overall stability and economic benefits of the system, can provide a scientific basis for an electric power company to formulate reasonable scheduling measures, and enhances the capability of the power grid to cope with the access of large-scale electric vehicles.

The invention provides a transmission control method and device, equipment, a chip and a medium, and the method comprises the steps: obtaining the TA adjustment amount; determining whether the TA adjustment amount is a target value, and obtaining a reference result; according to the reference result, a first TA offset value is determined, the first TA offset value is used for determining a TA value, and the TA value is used for uplink data transmission. The technical problem that the random access performance of the terminal is affected due to the fact that the TA adjustment amount indicated to the terminal by the network equipment is possibly inaccurate in the prior art is solved.

The invention discloses an access measurement and calculation method considering a distributed power supply, equipment capacity and a power distribution network multi-element electric energy substitution load, and the method comprises the steps: determining multi-element load aggregation power through employing a pre-constructed multi-element load aggregation model based on the power data of n types of loads in the multi-element electric energy substitution load of a to-be-evaluated power grid, and n is a positive integer; based on the multi-element load aggregation power and a distributed power supply model, source load matching is carried out by using a pre-constructed source load matching model to obtain a source load matching result, and the distributed power supply model is used for simulating the output power of a distributed power supply; and based on the source load matching result and the equipment capacity model, evaluating the distributed power supply access capability of the to-be-evaluated power grid, thereby being capable of adapting to the change of equipment capacity limitation in the power grid in real time, and improving the evaluation accuracy of the access capability of the distributed power supply in the power grid by combining with the space-time characteristics of the multivariate electric energy replacement load.

The application provides a device access method and system based on multi-base station cooperation and an electronic device, wherein the method comprises the following steps: determining, for an MTC device in an overlapping coverage area, a base station selection probability corresponding to each base station when the MTC device accesses at least two base stations and a target ACB control parameter corresponding to each base station; broadcasting the at least two base station selection probabilities and the at least two target ACB control parameters to the MTC device; and the MTC device is used for determining a target base station corresponding to a maximum base station selection probability based on the at least two base station selection probabilities and performing ACB detection based on the target ACB control parameter of the target base station to determine whether to access the target base station. The application can effectively and reasonably allocate the MTC devices in the overlapping coverage area according to the load conditions of the base stations, improve the overall access performance of all the MTC devices, and improve the access performance of the MTC devices.

This invention discloses a dynamic optimization method for the OBSS PD threshold in an FTTR network based on Bayesian estimation. This method is applied to an FTTR network comprising one master FTTR unit (MFU) and multiple slave FTTR units (SFUs). Through the synergy of SFU local distributed channel awareness and Bayesian transmission intent inference, and MFU centralized global optimization, closed-loop dynamic optimization of the OBSS PD threshold is achieved. The method includes the following steps: Step S1, system configuration and initialization; Step S2, SFU distributed channel awareness and Bayesian inference of STA transmission intent; Step S3, MFU centralized joint optimization of OBSS PD threshold and transmit power; Step S4, threshold issuance and closed-loop dynamic update. This invention relies on the fiber-optic distributed architecture of the FTTR network ("one MFU + multiple SFUs"), and achieves closed-loop dynamic optimization of the OBSS PD threshold through the synergy of SFU local distributed channel awareness and Bayesian transmission intent inference, and MFU centralized global optimization.

The invention discloses a method and an apparatus in a node used for wireless communication. A first receiver receiving at least one of the plurality of reference signals; selecting a first reference signal, wherein the first reference signal is one of the plurality of reference signals; the first transmitter determines a target PRACH opportunity group; a first random access lead code is sent in the target PRACH opportunity group; wherein the step of determining the target PRACH opportunity group comprises the following steps: determining a first element from a first set; the first set comprises a plurality of elements, and each element in the first set comprises at least one PRACH opportunity mapped to the first reference signal; the step of determining the target PRACH opportunity group comprises: randomly selecting a PRACH opportunity group from a first PRACH opportunity group set at an equal probability; each PRACH opportunity group in the first set of PRACH opportunity groups is mapped to the first reference signal, and each PRACH opportunity group in the first set of PRACH opportunity groups includes K PRACH opportunities.