115 results about "Stream control" patented technology

This invention discloses a method and system for extracting and associating physical and logical circuits in a DC control and protection system. The method includes: constructing physical circuits based on engineering design drawings and optical cable documents; parsing the graphical program of the DC control and protection device to extract communication-related symbol information and constructing logical circuits; and representing the circuit data using a directed graph to associate the physical and logical circuits. This invention can efficiently realize the automatic construction and association of communication circuits, improving the efficiency of communication circuit diagnosis, debugging, and operation and maintenance in ultra-high voltage DC control and protection systems.

This invention discloses a series-parallel hybrid power flow control method and system, applied in the field of power grid power flow control. The method includes: determining power grid demand information based on key operating data of the transmission network; determining the equivalent active power control quantity of UPFC, the equivalent power flow regulation quantity of SSSC, and the equivalent reactive power control quantity of STATCOM based on the quantification results of the demand information, the first constraint data of the series-parallel hybrid power flow control device, and the second constraint data of the transmission network; and injecting equivalent voltage and equivalent current into the transmission network through the series-parallel connection of UPFC, SSSC, and STATCOM to regulate the key operating data of the transmission network. When power flow control is required in the transmission network, this invention injects controllable voltage and current into the transmission network through UPFC, SSSC, and STATCOM to achieve adaptive control of power flow on transmission network lines.

This invention relates to the field of distributed computing technology, and in particular to a unified registration and scheduling system for AI agent capabilities in edge-cloud collaboration, comprising: a dynamic behavior mapping module for capturing client interaction behavior features and mapping them to behavior control topology, performing path adjustment when deviations occur, and registering the control behavior to a unified MCP capability center; a semantic feature compression module for dimensionality reduction and compression of the original multimodal data stream to generate low-dimensional semantic feature stubs; an asynchronous state alignment module for converting feature stubs into asynchronous stateless message streams and reconstructing context mirror data on the cloud side; an inference stream scheduling module for generating inference stream scheduling strategies based on multi-dimensional states; a thought chain flow control module for dynamically truncating the streaming output of the large model according to the strategy and extracting core control segments and confidence levels; and a residual collaborative execution module for sending the core control segments to the edge for residual logic completion, driving the topology to execute control behaviors.

The application relates to the technical field of mechanical control, in particular to a power matching control method and system applied to engineering machinery. The method comprises the following steps: acquiring a real-time engine speed corresponding to a current control time period of the engineering machinery; acquiring a current working condition parameter, performing working condition recognition analysis on the current working condition parameter according to a preset full-working-condition database, and obtaining a target real-time working condition; determining an initial control current according to the real-time engine speed and the target real-time working condition; performing a dynamic closed-loop correction operation on the initial control current to obtain a target control current; and controlling a proportional valve controller of the engineering machinery according to the target control current to perform power matching on the engineering machinery in the current control time period. Through the construction of the database covering full working conditions, the power matching can comprehensively adapt to multi-working-condition changes, the accuracy of the power matching is guaranteed, and the accuracy of the power matching is further improved through the dynamic closed-loop correction for adjusting the control current.

The application provides a push stream control method and device and electronic equipment, and relates to the technical field of automatic driving. The method comprises the following steps: subscribing to a push stream switch topic published by a remote control platform based on a preconfigured robot operating system (ROS) node; obtaining push stream control information issued by the remote control platform from the push stream switch topic; the push stream control information comprises a push stream total switch and a target address; the push stream total switch is used to represent a push stream on state or a push stream off state; updating a current push stream parameter in the ROS node according to the push stream control information to generate a new push stream parameter; and controlling camera push stream to a target server according to the new push stream parameter; the target server is a device corresponding to the target address. The method can realize dynamic updating of the push stream parameter in the ROS node, thereby adapting to the dynamic scheduling requirements of multiple vehicles and multiple tasks in a vehicle-mounted scene.

The present application belongs to the technical field of fluid intelligent control of numerical control machine tool, in particular to a numerical control machine tool external throttling monitoring system and control method. The system comprises a main liquid supply pipeline, a plurality of throttle valve units, and an integrated base fixedly connected with the inlet of the main liquid supply pipeline. The inside of each throttle valve unit is uniformly distributed with a thin film flow sensing sheet, and the outside is provided with a state indicator lamp for prompting the optimal throttle valve opening position. The method comprises: establishing a unified fluid dynamics and coordinate reference; determining whether the current opening needs to be adjusted based on the flow information and flow field distribution of the in-valve sensing sheet within the effective flow period, and guiding the operator to perform valve position adjustment through the state indicator lamp; and performing reset, recording and conservation strategy at the end of the event to ensure the implementability and reproducibility under different installation attitudes, different machining conditions and environments. The present application realizes adaptive throttling control of the external cooling / lubricating system of the numerical control machine tool, and improves the machining stability and fluid utilization efficiency.

The application discloses a control method and device of a PFC circuit, a power supply, a storage medium and a computer program product, wherein a series resonance module is arranged between an inductor module and a full-bridge module of the PFC circuit; the method comprises the following steps: in the case that the PFC circuit works, the on-off of the series resonance module is controlled according to the inductor current of the inductor module; the control current reference value of the PFC circuit is determined by performing PI control on the output DC voltage of the PFC circuit in a voltage loop; and the duty cycle of all switch tubes in the full-bridge module is determined by performing deadbeat control on at least one of the inductor current of the inductor module, the input AC voltage of the PFC circuit, the control current reference value and the output DC voltage in a current loop. According to the scheme, the series resonance module is arranged in the PFC circuit, PI control is adopted in the voltage loop, and deadbeat control is adopted in the current loop, so that the dynamic response speed is accelerated, the switching loss is reduced, and the overall efficiency of the PFC circuit is improved.

The present application belongs to the technical field of speech processing, and particularly relates to a double-talking detection and acoustic echo cancellation cooperative processing method based on double CUDA streams. The method comprises the following steps: creating a first CUDA stream and a second CUDA stream on the same graphics processing unit; establishing a shared memory control package for cross-stream control between the first CUDA stream and the second CUDA stream; organizing a microphone near-end signal and a far-end reference signal into continuous frames with a preset frame length and frame shift; in the second CUDA stream, recording a synchronization event after writing sub-band control parameters and frame-level mode markers into the shared memory control package; in the first CUDA stream, performing partition blocking frequency domain sub-band adaptive filtering to update filter coefficients and generate echo suppression output. The present application realizes a highly cooperative, low-delay, high-robust real-time processing system for double-talking detection and echo cancellation, and has operation efficiency, control accuracy and engineering realizability, and is suitable for voice communication, remote conference and intelligent voice interaction systems.

To achieve both stabilization of treated water quality and energy conservation. [Solution] A program to be executed by a computer having a processor and memory, the program causing the processor to perform the following steps: receiving a predetermined amount of wastewater flowing through the main stream of a wastewater treatment facility as sidestream wastewater; controlling water treatment for a predetermined amount of wastewater; measuring a predetermined value in the water treatment; and passing information relating to the measured result to the control of the main stream.

This invention discloses a dual-path interleaved phase-shift current sharing control method and system based on FPGA. The PWM on the DSP side adopts a rising-falling counting method, setting it low when the rising count reaches the comparison value and high when the falling count returns to the comparison value. The DSP outputs four sets of PWM signals in the first path to the drive circuit, and simultaneously sends two sets of PWM signals from the first branch's upper bridge arm along with the synchronization signal to the FPGA. The control gain (Gain) is sent to the FPGA via SPI communication at intervals of one power frequency cycle. After receiving the above signals, the FPGA generates and outputs four sets of PWM signals in the second branch. Leveraging the FPGA's high-speed parallel processing capabilities, abundant programmable logic and I / O resources, and strict timing determinism, this invention can achieve precise PWM phase-shift control with real-time duty cycle compensation, thereby effectively improving the system's current sharing performance and current ripple characteristics, and enhancing the efficiency and long-term operational reliability of high-power power conversion systems.

This application provides a wave-by-wave current limiting control method, apparatus, system, medium, and program product. The method is applied to a converter based on an ANPC-2 topology, which includes multiple inner tubes, multiple outer tubes, and multiple clamping tubes. The method includes: detecting the current index of the converter's bridge arms; and when the current index is greater than or equal to a preset current threshold, sequentially turning off the inner tubes, outer tubes, and clamping tubes in that order. This application solves the problem of the lack of applicable wave-by-wave current limiting technology in ANPC-2 topologies by sequentially turning off the inner tubes, outer tubes, and clamping tubes when an ANPC-2 topology converter experiences overcurrent, thus ensuring the reliable operation of the converter.

This disclosure provides a multi-step model predictive current control method with variable prediction step size, including: Step 1, obtaining torque reference value. T e ref Step 2, obtain the current based on the principle of no deadbeat ( k + N Reference voltage vector of the control cycle u s Nref Step 3: Calculate the voltage vector application time corresponding to the two non-zero voltage vectors and one zero voltage vector required to synthesize the reference voltage vector; Step 4: Construct a candidate voltage vector sequence set; Step 5: Select... N Step 6: Construct the optimal application vector within each control cycle; Step 7: Construct the drive signal for each switch of the inverter in the next control cycle; Step 8: Update the average switching frequency of the switches in the next cycle, construct a proportional-integral regulator using the difference between the reference switching frequency and the actual switching frequency as input, and update the prediction step size for the next cycle. N The method disclosed herein reduces the computational burden, enhances the steady-state performance of the system, and enables online adjustment of the prediction step size.

This invention proposes a synchronous rectification controller suitable for power conversion circuits. The synchronous rectification controller includes a first terminal, a second terminal, and a switch detection unit. The first terminal is coupled to the primary side of the power conversion circuit. The second terminal is coupled to the secondary side of the power conversion circuit. The switch detection unit, coupled to the first terminal, detects the switching of the primary side of the power conversion circuit. When the switch detection unit detects a trigger signal, it drives the second terminal to send a synchronization signal, thereby controlling the secondary side of the power conversion circuit.

This application relates to the field of integrated circuit design technology and discloses an on-chip network deadlock prevention method and system based on path reservation and credit backhaul. The core of the method lies in proactively locking virtual channel resources along the entire path via an independent reservation request packet along an adaptive route before data packet transmission. Combined with a "credit backhaul confirmation" mechanism, data packets are only allowed to be injected into the network after the source node receives an confirmation packet, thus transforming resource dependencies into unidirectional credit flow control. Simultaneously, reservation resource management is achieved by setting a distributed reservation state table in each router, and soft reservation and multi-path exploration mechanisms are introduced to improve resource utilization efficiency and path selection flexibility. This scheme fundamentally breaks the conditions for circular waiting, completely avoids deadlock, and eliminates the performance bottleneck of traditional methods when virtual channel resources are limited, achieving high determinism in data transmission, low blocking risk, and high efficiency in resource utilization.

The application relates to a control method of a flow distribution electromagnetic valve and related equipment, which is applied to the technical field of vehicles, and the method comprises the following steps: obtaining an opening degree adjustment request of a flow distribution electromagnetic valve, the opening degree adjustment request carrying a target opening degree proportion representing the opening degree state of the flow distribution electromagnetic valve; obtaining a previously established mapping relationship between the opening degree proportion of the flow distribution electromagnetic valve and a control current, the opening degree proportion being determined based on the flow distribution electromagnetic valve distributed flow and total flow; determining a target control current corresponding to the target opening degree proportion based on the mapping relationship; and controlling the flow distribution electromagnetic valve according to the target control current, so that the opening degree of the flow distribution electromagnetic valve meets the target opening degree proportion.

This invention provides a flyback power supply, a synchronous rectification control circuit, and a method, comprising: a turn-on control module for generating a turn-on control signal for the synchronous rectifier; a turn-off control module for generating a turn-off control signal for the synchronous rectifier when the drain-source voltage of the synchronous rectifier rises to a turn-off threshold, and simultaneously adjusting the turn-off threshold based on the peak value of the drain-source voltage of the synchronous rectifier; and a drive signal generation module for generating a drive signal for the synchronous rectifier based on the turn-on control signal and the turn-off control signal; wherein the turn-off threshold is a negative value. This invention automatically adjusts the turn-off threshold according to the drain-source voltage of the synchronous rectifier, solving the voltage stress problem caused by common operation in continuous mode, enabling the system to operate safely and efficiently in continuous mode; simultaneously, it achieves maximum conduction time in discontinuous mode, resulting in high system efficiency; furthermore, this invention reduces the comparator delay requirement and eliminates the need for specific processing of the primary-side control drive, making it simple and easy to implement.

A water pump flow control method and control system, the method comprising S1: control system initialization, obtaining a global impedance set through the control system, the global impedance set comprising but not limited to impedance coefficients Z of all branches i , initial pressure Q s , and falling slope K; S2: based on the global impedance set, through the pulse synchronous constant current control method, coordinating the pulse switch timing of all branches, making the whole pipe network system run synchronously in constant current; S3: if the pulse unit at the inlet end of any branch detects that the pressure waveform is continuously abnormal, the fault diagnosis module will send a fault alarm and diagnosis result to the main controller, the main controller isolates the abnormal branch, and re-executes S2. Through the control method and system, the variable frequency water pump can be started at off-peak, avoiding the huge pressure impact caused by the simultaneous start and stop of all valves. Secondly, the variable frequency water pump always works near the resonance point, the output constant flow is stable, the system runs in the "resonance" state, and the irrigation is more stable.

This utility model discloses a voltage-stabilized multi-rectifier current sharing control system, relating to the field of multi-rectifier current sharing control technology. It includes a controller, a main rectifier, and multiple slave rectifiers. The controller module comprises a current sharing control module, a voltage regulation control module, a communication module, and a power supply module. The controller is connected to the main rectifier and multiple slave rectifiers via the communication module. It centrally controls 1+N rectifiers and achieves current sharing control. The rectifiers are miniaturized, allowing for flexible increases in the number of units and facilitating on-site planning. The rectifiers operate at optimal power, improving average power consumption and efficiency. In the event of a single rectifier failure, the system automatically distributes current to ensure the continuity of electroplating production.

Protocol layer logic in a protocol stack receives an indication that a particular mode is to be utilized on a die-to-die (D2D) link connecting a first device to a second device. The protocol layer logic generates data to be sent on the D2D link to adapt the particular data format to a flit format defined for use on the D2D link in the particular mode, the flit format comprises providing a set of reserved fields to be completed by an adapter block positioned between the protocol circuitry and a physical layer block. The data in the flit format is sent to the data to the adapter block to prepare the data for transmission over the D2D link.

This invention provides an adaptive fault-tolerant control method and storage medium for an AC drive inverter, relating to the field of power electronics control technology. The method includes: real-time monitoring of the operating status of multiple parallel inverter units; when a fault is detected in any inverter unit, its operation is disconnected online, and the number N of effective working units in the system is dynamically updated; based on the updated N value, current sharing control is performed on the remaining normal parallel inverter units to redistribute the total load current. The system includes a main control box and multiple parallel inverter units, with the main control box executing the above method. This invention achieves continuous operation of the system without shutdown through online fault diagnosis, rapid isolation of faulty units, and dynamic current sharing reconstruction based on the number of remaining units, significantly improving the reliability and fault tolerance of the parallel inverter system. This invention also discloses a computer-readable storage medium.

This application provides a VSG fault current limiting control strategy based on reactive power deviation integral feedback, including: constructing a reactive power deviation integral feedback control branch between the reactive power droop control output and the voltage command generation in the VSG reactive power loop; determining an integral feedback compensation value based on reactive power deviation control based on the reactive power deviation integral feedback control branch; and limiting the short-circuit current amplitude based on the integral feedback compensation value. The strategy proposed in this application, by introducing reactive power deviation integral feedback compensation control during fault periods, can equivalently adjust the reactive power droop coefficient and voltage command value, effectively reducing the fault current amplitude during fault periods and providing reactive power support for the system.

The application provides a kind of adaptive rectifier control system and method supporting multiple input voltage mode, it is related to rectification control technical field, according to input voltage control quantity determines the regulating effect order of rectifier in the current control period that can balance midpoint voltage, determines the voltage amplitude level of rectifier's midpoint potential on adaptation interval and the voltage equalization strategy corresponding to current input voltage mode;Equivalent compensation error corresponding load working condition is judged to jump, and the voltage jump vector of rectifier under matching load condition is obtained, the gain switching of voltage equalization strategy to voltage jump vector is carried out, and the critical output criterion of rectifier under different switching operating state is obtained;According to critical output criterion, the negative sequence superposition instruction of rectifier when correcting input voltage is automatically fault-tolerant regulation and control.The application can accurately fault-tolerant regulation and control to rectifier's negative sequence regulation and control under multiple input voltage fluctuation conditions, to improve the adaptive regulation and control stability of rectifier.

This application discloses a current sharing control method and system for an excitation system, belonging to the field of excitation system control technology. The method includes: acquiring the real-time current values ​​of each thyristor in the excitation system and the output current value of the rectifier cabinet; collecting the thyristor case temperature sequence, heat sink temperature sequence, and ambient temperature sequence; constructing a temperature prediction model to output the future temperature sequence of the thyristors based on a multi-dimensional feature vector constructed from the thyristor case temperature sequence, heat sink temperature sequence, ambient temperature sequence, historical current sequence, and current change rate; and generating trigger pulse adjustment commands based on the future temperature sequence of the thyristors output by the temperature prediction model, combined with the real-time current value of the thyristors and the output current value of the rectifier cabinet, to achieve current sharing control between rectifier cabinets and between thyristors. This method can predict future temperature changes of the thyristors, effectively improve the stability of the current sharing coefficient, avoid device failure caused by local overheating, extend the service life of the excitation system, and reduce heat dissipation energy consumption.

This invention provides a power supply control device, a current sharing control method, and an electrical system. The power supply control device includes multiple DC-DC converter circuits connected in parallel. For each DC-DC converter circuit, the circuit includes a negative adjustment module and a positive adjustment module. The input terminal of the negative adjustment module is electrically connected to a DC power supply, and its output terminal is electrically connected to the input terminal of the positive adjustment module. The output terminal of the positive adjustment module is electrically connected to a DC bus. The negative adjustment module regulates the negative output current of the DC-DC converter circuit, and the positive adjustment module regulates the positive output current of the DC-DC converter circuit. This invention enables the formation of independent positive and negative power transmission paths within the DC-DC converter circuits, thereby blocking internal circulating currents between modules at the physical structure level. This effectively reduces the difference in output current between the DC-DC converter circuits, ultimately reducing the difficulty of current sharing among them.

This invention discloses a method, device, and medium for memory access management in data processing, relating to the field of data processing technology. The method includes: receiving read / write access requests from a processor and writing them to an access request queue; performing message decomposition and field parsing on the read / write access requests to obtain request feature fields; generating access flow window parameters based on the process identifier in the request feature fields; collecting congestion characterization data around the access request queue and performing congestion determination to obtain a rate limiting control signal; updating the access flow window parameters based on the rate limiting control signal and setting an incomplete request admission threshold, thereby forming a controlled request queue constrained by the incomplete request admission threshold. This invention controls the size of the access request queue through the linkage of congestion determination and the incomplete request admission threshold, achieving controllable access rhythm for concurrent read / write operations, reducing incomplete request backlog and queuing latency fluctuations, and improving overall throughput stability and operational reliability.

The application discloses a weight-based dynamic flow control method and system. The gateway method comprises the following steps: capturing multi-dimensional request data carried by an access request sent by each target service as a real-time metering sequence; performing abnormality detection on the sequence and a pre-trained abnormality detection model to generate an abnormality detection result of each target service; obtaining basic parameters of each service; calculating a normalized dynamic weight of each target service at a current time according to the basic parameters and the abnormality detection result; updating a current flow control parameter of each target service according to the normalized dynamic weight to obtain a latest flow control parameter of each target service; and performing flow control on the access request based on the latest flow control parameter of each target service. Therefore, the application realizes adaptive and differentiated control of the distributed system flow, and improves the stability, load balancing efficiency and overall reliability of the system in a high-concurrency and flow fluctuation scenario.

The application relates to the technical field of unmanned vehicles, in particular to a remote low-delay control method for an unmanned delivery vehicle in a complex road environment, which comprises the following steps: calculating the physical time required for the vehicle to stop from the current speed to the stable speed by using the longitudinal vehicle speed of the unmanned delivery vehicle at the current moment and the maximum braking deceleration, so as to obtain the safe braking time length; predicting the network quality of the unmanned delivery vehicle at each predetermined driving path point in the time period corresponding to the future safe braking time length, so as to calculate the target encoding redundancy ratio of the collected video stream, dynamically adjust the generation frequency of the FEC packet; quantifying the effective data total amount that can be carried by the communication link, comparing the effective data total amount with the total data amount required by the video receiver player of the vehicle to maintain the current playing, evaluating the bandwidth supply deficit, and adjusting the video encoding parameters of the video sending end. The application eliminates the feedback lag problem of the video stream control of the unmanned delivery vehicle.

The present application belongs to the field of information security, and relates to a multi-agent network security operation method and device, electronic equipment and a storage medium, the method comprising: constructing a layered architecture from physical hardware to upper application; receiving a network security global task, and decomposing the network security global task into a task subset in a coarse-grained layer; assigning atomic tasks to suitable agents to form a task alliance and formulate a collaborative strategy; adapting to interference-free information interaction between agents by improving an operating system process credible interference-free information flow control method; performing real-time intention synchronization and collaborative adjustment between agents; collecting feedback information in the task execution process, evaluating the task completion condition, and optimizing the multi-granularity collaborative decision-making process. The present application meets the needs of intelligent network space security protection system; and can be applied to the security operation system platform scene of multi-agent collaboration, multi-robot collaboration, multi-agent software system, multi-digital person collaboration and the like.