33 results about "Alternative control" patented technology

The invention relates to the field of control, in particular to a zone control method and system for a temperature field of a copper material heat treatment furnace. In the off-line stage, a strategy library containing various high-efficiency affine control laws is calculated in advance by solving a multi-parameter planning problem, the furnace temperature state space is divided into a plurality of explicit control subareas according to the coupling strength of all temperature areas in the furnace, and a set of alternative control laws are assigned for each subarea; during on-line operation, the partition to which the current furnace temperature belongs is determined according to the current furnace temperature, the partition with the minimum performance cost is quickly selected from the alternative control laws of the partition through short-time domain prediction to serve as the current optimal law, and when the predicted furnace temperature enters the boundary of the partition, the optimal control laws of the current partition and the adjacent partition are weighted and mixed; otherwise, directly adopting the current optimal law to generate a control instruction and applying the control instruction to the heater.

The invention discloses a feature point identification method of a river hydrodynamic condition. The method comprises the following steps: S1, hydrological data collection; s2, dividing flow levels and simulating a flow field of each flow level; s3, arranging alternative control sections; s4, determining a target control section; and S5, constructing a correlation function to determine a target feature point. According to the method, historical hydrological and geographic data of a to-be-monitored river reach are utilized, hydraulic engineering simulation software is combined, a target control section is selected and determined by calculating section similarity indexes, relevancy values of all nodes in the target control section are calculated and selected through a constructed relevancy function, and the flow velocity of the nodes is combined; determining alternative feature points, and finally rejecting points influencing navigation, namely target feature points; the identified feature points are optimal monitoring points for arranging the river flow velocity monitoring device, a scientific basis is provided for reasonably arranging flow velocity monitoring points, only the water flow velocity of a limited number of feature points can be monitored, and the hydrodynamic change condition of the whole river can be mastered.

Phase-redundant voltage regulator device (300) comprising: a plurality of controller phases (126A, 126B, 227A, 227B, 227C, 227D), each containing an electrically connected controller (116) to receive an input voltage at a controller input (240) and to provide a corresponding output voltage at a controller output (242); a control logic (366); and a set of phase groups of the plural controller phases, which contains a first and a second phase group (374, 376), wherein each phase group contains: a common controller input (V IN ), which is electrically connected to the control inputs of the phase group; a common controller output (V1; V2) which is electrically connected to controller outputs of the phase group; at least one redundant control phase; at least one defined controller phase (126A, 126B) from the plurality of controller phases; at least one replacement controller phase (227C; 227D) of a set of replacement controller phases; and a multi-phase controller (MPC) (122) electrically connected to each specified controller phase of the phase group, the MPC being configured to provide phase fault signals (308A, 310A; 308B, 310B) and a shared current phase control signal (I SHARE )(304A, 306A; 304B, 306B), which were received from each specified controller phase of a corresponding phase group, is transmitted to the control logic (366); wherein the set of substitute controller phases from the plural controller phases contains a first and a second substitute controller phase (227A, 227B), wherein each substitute controller phase contains (227A, 227B, 227C, 227D): a secondary output OR switching unit (118A) which is electrically connected and configured to limit the current flow into a secondary output (206) of the substitute controller phase; a first output switching unit (217) configured to electrically connect the controller output (242) of the substitute controller phase to a first common controller output (V1) in response to a first phase enable signal (316A; 316B); and a second output switching unit (219) configured to electrically connect the controller output (242) of the substitute controller phase to a second common controller output (V2) in response to a second phase enable signal (318A; 318B); where the control logic (366) is electrically connected to: MPCs (122) of each phase group (374; 376) of the set of phase groups, wherein the control logic is configured to the I SHARE -receives phase control signals (304A, 306A; 304B, 306B) from the MPCs and exchanges phase error signals (302A, 308A, 310A; 302B, 308B, 310B) with them; and Substitute controller phases (227A, 227B) of the set of substitute controller phases, wherein the control logic is configured to activate phase enable signals (316A, 318A; 316B, 318B) to the substitute controller phases (227A, 227B) as well as I SHARE -Transmits phase control signals (314A; 314B) to these and receives phase error signals (312A; 312B) from them; wherein the control logic is configured to electrically connect a substitute controller phase (227A, 227B) to a phase group (374; 376) containing a failed controller phase (126A, 126B) in response to receiving a phase fault signal (308A, 310A; 308B, 310B) from an MPC (122).

This invention discloses a method for early warning and decision-making regarding earth pressure risk in subway shield tunneling construction, relating to the field of shield tunneling technology. The method includes the following steps: S1, acquiring data to construct a control benchmark system and generating a weight vector; S2, collecting datasets and conducting evaluations to obtain comprehensive state indicators, then benchmarking them against the control benchmark system to identify earth pressure anomaly types, determine risk control levels, and match alternative control measures; S3, constructing an optimized decision-making model and calculating the cost-risk balance coefficient; S4, prioritizing each alternative control measure, generating early warning signals and control decision schemes, and simultaneously collecting effect data; S5, dynamically iteratively updating the control benchmark system and the optimized decision-making model based on the effect data. This invention simplifies the emergency response process for earth pressure risk by constructing an early warning and decision-making method for earth pressure risk in subway shield tunneling construction, improving the accuracy and response speed of earth pressure risk control.

The utility model discloses a low energy consumption water purification device. The low energy consumption water purification device includes the filter mechanism for filtering, the desalination mechanism for desalination and the disinfection mechanism for disinfection, the desalination mechanism includes main desalination pipe, vice desalination pipe, diaphragm pump, nanofiltration membrane component, membrane capacitance deionization device and valve component for the water flow into membrane capacitance deionization device or vice desalination pipe of alternative control, the filter mechanism and disinfection mechanism are connected through main desalination pipe, diaphragm pump, nanofiltration membrane component and membrane capacitance deionization device are installed in sequence on main desalination pipe, vice desalination pipe is provided with on main desalination pipe in parallel with membrane capacitance deionization device. The low energy consumption water purification device of the utility model can select desalination path according to TSD, avoids unnecessary equipment starting, and saves energy consumption.

Interference on control channels using shared spectrum is managed by a base station without the use of centralized spectrum control device. A base station monitors a plurality of alternative control channels and measures received signal strength energy corresponding to each of the plurality of alternative candidate control channels. A received signal strength indicator (RSSI) is measured for each channel-beam combination. An average RSSI value is determined for each candidate control channel. A candidate control channel can be, and sometimes is, removed from further consideration for selection based on one or more RSSI based exclusion criteria. Among the remaining candidate control channels, a control channel with the lowest average RSSI is selected. The base station uses the selected control channel to transmit control information via wide control channel beams and uses one or more of the other channels to transmit data via narrow data channel beams.

The invention discloses a networked automobile-oriented control information value evaluation method based on model prediction, and relates to the technical field of vehicle control, and the method mainly comprises the steps: obtaining control information which is sent by a front vehicle and comprises a plurality of future time slot prediction state sequences of the front vehicle; taking the control information as known input, solving a model prediction control problem taking minimization of a preset objective function as a core, obtaining a first optimal control sequence, and calculating a first control performance index; under the condition that the control information is assumed to be missing, generating an alternative control information sequence through extrapolation based on the historical control information; taking the alternative control information sequence as known input, solving the model prediction control problem to obtain a second optimal control sequence, and calculating to obtain a second control performance index; and calculating a difference value between the first control performance index and the second control performance index, and defining the difference value as an information value of the control information. According to the invention, dynamic quantification of control information value and intelligent scheduling of communication resources are realized.

The invention provides a control display control method and device, electronic equipment and a storage medium. Displaying a target control comprising one main control and at least one alternative control, wherein the target control corresponds to N execution functions; n is not less than 2 and is equal to the sum of the number of the main controls and the number of the alternative controls; the main control is a control in a selected state in the target controls; determining an execution function of the main control as an execution function currently corresponding to the target control; in response to a selection operation for the alternative controls, adjusting the target alternative control to be in a selected state, and adjusting other controls in the target control to be in an unselected state; and switching the execution function currently corresponding to the target control into the execution function corresponding to the target alternative control. In the mode, the controls in the target controls execute different functions in the self-selected and non-selected states, switching of the corresponding functions of the target controls can be achieved without additionally adding switching controls, and the interface display efficiency is improved.

The invention discloses a water turbine speed regulation controller based on deep learning and a long-short-term memory network, and belongs to the technical field of hydroelectric generation control. In order to solve the problems that a PID controller is insufficient in regulation performance, parameters depend on artificial experience and the like, a speed regulation controller is designed by adopting a long short-term memory network (LSTM) and combining deep learning, and the PID controller is replaced. The method specifically comprises the steps that a water turbine adjusting system simulation model is built, and input and output data under a PID controller is collected under multiple working conditions to serve as training and verification data of an LSTM prediction model. In the construction of the LSTM controller, time sequence feature learning and adaptive weight optimization are introduced, so that the performance of the LSTM controller is improved. A simulation experiment shows that the speed regulation controller constructed by the invention not only can replace a PID (Proportion Integration Differentiation) controller, but also has excellent transient performance.

The invention belongs to the field of control of vacuum hole plugging machines, and relates to a filling control method and system of an integrated vacuum hole plugging machine. The method comprises the following steps of: partitioning based on a hole site density distribution diagram of the circuit board, setting an independent prediction and control time domain for each region, and constructing a state vector comprising a predicted filling volume, a slurry flow resistance coefficient and a vacuum chamber leakage rate; in the control process, multiple sets of scraper pressure and speed alternative control sequences are generated through a kinetic model, the filling volume deviation, the overflow risk and the control vector variable quantity of all the sequences in a prediction time domain are evaluated through a weighting function, and therefore a quadratic type performance index function is constructed; and solving a quadratic performance index function to obtain an optimal control sequence and execute a first instruction, and updating a state vector by adopting a double-cycle mechanism to complete closed-loop control. According to the method, the problems of cavities and overflow caused by non-uniform hole position density are solved, and the consistency and stability of hole plugging quality are ensured.

The invention provides a multi-terminal collaborative power grid interaction control method and system, and the method comprises the steps: S1, querying terminals in a power grid system and built-in instruments of the terminals, obtaining power parameters based on the built-in instruments, and constructing a data structure body of each terminal; s2, determining relevancy among different terminals according to the data structure body of each terminal; s3, for any terminal, selecting the terminal of which the relevancy with the terminal reaches a preset relevancy threshold to obtain a terminal set; s4, analyzing the data structure body of any terminal, and determining a control demand and an alternative control instruction; and S5, taking the terminal with the control requirement as a target terminal, querying a terminal set corresponding to the target terminal, determining the other-end influence quantity of each alternative control instruction in the terminal set, and determining a final control instruction according to the other-end influence quantity.

A method for controlling a roadwheel actuator (RWA) of a vehicle includes, using one or more processors, determining an expected cornering state of the vehicle by determining at least one of an expected yaw rate an expected lateral acceleration of the vehicle, determining an actual cornering state of the vehicle by determining at least one of an actual yaw rate and an actual lateral acceleration of the vehicle, determining a cornering state error based on the expected cornering state of the vehicle and the actual cornering state of the vehicle, generating an RWA control signal based on the cornering state error, and controlling at least one function of the vehicle using the RWA control signal.

This software update system updates vehicle control software that is executed by an electronic control device mounted on a vehicle and controls the vehicle. The software update system comprises: a monitoring unit that monitors an operation state of an alternative control means for controlling the vehicle in place of the vehicle control software, and acquires a log of the vehicle control software in a period including at least a time point before an operation start time point of the alternative control means when the alternative control means operates; an update necessity determination unit that determines necessity of update of the vehicle control software on the basis of the log acquired by the monitoring unit; and a distribution unit that, when it is determined by the update necessity determination unit that update of the vehicle control software is necessary, distributes update software for updating the vehicle control software to the vehicle.

A secondary control system configured to be provided between a primary control system and at least part of a main system, wherein the primary control system is configured to provide control instructions to the main system, the secondary control system comprising: a monitoring module to determine a current state and / or a future state of the main system; a control switching module configured to switch control of the main system from the primary control system to the secondary control system, wherein the control switching module is configured to: allow the control instructions from the primary control system to be provided to the main system, prevent the control instructions from being provided to the main system, or provide alternative control instructions to the main system.

The invention belongs to the technical field of vehicle stability control, and particularly relates to a vehicle stability control strategy optimization method based on a fuzzy logic theory. The method comprises the following steps: firstly, determining a control strategy alternative scheme, an evaluation criterion and a decision maker according to a preset target, calculating each attribute evaluation value and constructing an initial evaluation matrix; secondly, language evaluation given by a decision maker is converted into an intuitionistic fuzzy value; then, determining the weight of each decision maker based on a trust performance function, determining the weight of each evaluation index based on an entropy weight method, and performing normalization processing on the initial evaluation matrix; and finally, based on the constructed evaluation matrix, the decision maker weight and the evaluation index, the TOPSIS method is combined for application, alternative control strategies are sorted and selected, an optimal scheme is determined, an evaluation result has very high robustness, and the sorting problem that a traditional TOPSIS method is difficult to process information containing uncertainty and is easily influenced by subjective factors is avoided.

The invention provides a game operation control method and device and electronic equipment. The method comprises the following steps: in response to a control selection operation, selecting a first control and a second control from alternative controls; displaying the alternative game roles on a graphical user interface; wherein for the alternative game role, the first control is configured with a first function, and the second control is configured with a second function; and in response to the role selection operation, determining a target role from the alternative game roles, controlling the game function configured by the first control to be updated to the second function aiming at the target role, and updating the game function configured by the second control to the first function. According to the mode, the role configuration flexibility is improved, the operation is convenient, and the configuration efficiency is high.

A method (200) of controlling a technical system comprises: providing (211) a reinforcement learning (RL) agent, which has been trained to control the technical system in a nominal operating condition; using the RL agent, generating (212) a tentative control action to be applied to the technical system in its current state; and assessing (213) whether a current operating condition of the technical system is nominal. If the current operating condition of the technical system is nominal, the tentative control action is applied (214). If instead the current operating condition of the technical system is non-nominal, an alternative control action, which approximates the tentative control action and is consistent with the non-nominal current operating condition, is applied (216).

The invention relates to a method for operating a drive system (1), wherein the drive system (1) has an electric machine (2), power electronics (7) associated with the electric machine (2) and a control device (8), wherein the control device (8) has a computing unit (12) and a plurality of gate drive circuits (13, 14), wherein a control command is determined by means of the computing unit (12) as a function of an actual rotational speed of the electric machine (2) and wherein the control command contains at least one item of information about a preset safe operating state in the power electronics (7). It is provided that a preset number of preset messages is sent by the computing unit (12) to the gate drive circuits (13, 14) in a preset sequence, that a complete traversal is verified by the gate drive circuits (13, 14) in terms of the sequence, number and content of the messages and that the control command is stored and / or executed in the gate drive circuits (13, 14) only upon successful verification, otherwise a preset alternative control command is stored and / or executed in the gate drive circuits (13, 14).

An improved method of low-voltage ride-through protection of a coal feeder based on DCS logic control.The prior art has frequent large changes in the rotating speed of the coal feeder during coal cutting; when the rotating speed signal detected in the coal feeder changes greatly, the internal program judges that the rotating speed is abnormal, which causes the coal feeder to trigger a trip signal by mistake, and brings great safety hazards to the normal operation of the unit.The present application comprises the following steps: (1) an internal program modification method of the coal feeder microcomputer board; (2) a low-voltage judgment method of the coal feeder control loop; (3) a logic configuration method of the self-starting of the low-voltage fault of the coal feeder; (4) a fault simulation method of the internal program of the coal feeder; (5) a setting method of the internal parameters of the frequency converter of the coal feeder; an alternative control method of the low-voltage ride-through control device of the coal feeder is proposed, which solves the problem of the coal feeder tripping by mistake due to the rotating speed during coal cutting.The present application is used for the improved method of low-voltage ride-through protection of the coal feeder based on DCS logic control.

The application discloses an industrial emergency rescue decision system based on multi-agent collaborative control, comprising: a data acquisition module for acquiring rescue sensing data and environmental constraint data; an association generation module for generating an event association graph and an agent state sequence; a witness construction module for generating a collaborative witness sequence; a domain mapping module for generating a current control state, an alternative control state, a closure bearing domain, a conflict transition path, a fact frontier domain and an anti-fact frontier domain; an algorithm construction module for constructing an improved Dubois-Prade algorithm; an evidence generation module for generating an evidence focus element and a basic probability assignment; a conflict fusion module for generating a fact domain fusion state and an anti-fact domain fusion state; and a decision output module for generating a global situation result, a collaborative control instruction and an emergency rescue decision result. The application improves the conflict evidence utilization rate and the emergency rescue decision reliability.

The invention relates to an alternative control method for a steer-by-wire system. A method for controlling a road wheel actuator (RWA) of a vehicle includes using one or more processors: determining an expected turning state of the vehicle by determining at least one of an expected yaw rate and an expected lateral acceleration of the vehicle; determining an actual turning state of the vehicle by determining at least one of an actual yaw rate and an actual lateral acceleration of the vehicle; determining a turn state error based on the expected turn state of the vehicle and the actual turn state of the vehicle; generating an RWA control signal based on the turn-over state error; and controlling at least one function of the vehicle using the RWA control signal.

The invention discloses a permanent magnet synchronous motor prediction torque control method based on dual priority ordering, and belongs to the field of motor control, and the method comprises the steps: predicting the AC-DC axis current based on multiple groups of AC-DC axis alternative control voltages, AC-DC axis currents and rotating speeds of a permanent magnet synchronous motor at the current moment, and obtaining a prediction flux linkage value through the predicted AC-DC axis current; according to the obtained multiple groups of predicted flux linkage values and a set reference flux linkage value, flux linkage error evaluation values are calculated and sorted, and a first priority sorting result is obtained; predicting a motor torque value based on multiple groups of quadrature-direct axis currents of the permanent magnet synchronous motor at the current moment; calculating torque error evaluation values according to the obtained multiple groups of motor torque values and a set reference torque value, and sorting the torque error evaluation values to obtain a second priority sorting result; and the priority ranking results are fused to obtain the alternative control voltage with the optimal comprehensive ranking. The method does not need to depend on manual setting of weight factors, and improves the motor control precision and robustness.

The present application relates to the control field, specifically to a kind of copper material heat treatment furnace temperature field partition control method and system, the state space model of furnace temperature is established;In offline stage, by solving multi-parameter programming problem, a strategy library containing multiple efficient affine control law is calculated in advance, according to the coupling strength of each temperature zone in furnace, the furnace temperature state space is divided into multiple explicit control partitions, and a group of alternative control law is specified for each partition;When running online, according to the current furnace temperature, determine the partition to which it belongs, through short-time domain prediction, quickly select the performance cost minimum from the alternative control law of the partition as the current optimal law, when the predicted furnace temperature will enter the boundary of partition, the optimal control law of current partition and adjacent partition is weighted and mixed;Otherwise, directly adopt current optimal law to generate control instruction and apply to heater.

The invention relates to a process for fabricating an integrated circuit (IC) comprising a bidirectional field-effect transistor (1), comprising the following steps: (I) providing a stack of layers (EC) deposited on a substrate (SUB); (II) fabricating the bidirectional transistor (T1) by forming: • at least two gates (G1, G2) in the barrier layer (C1); • a first source (S1) and a second source (S2); • and a channel region (ZC) formed in the channel layer (C2); (III) fabricating, on the same stack of layers (EC), a first bias transistor (Ta) and a second bias transistor (Tb), the bidirectional transistor, the first bias transistor (Ta) and the second bias transistor (Tb) being monolithic; (IV) electrically connecting: the source (Sa) of the first bias transistor (Ta) to the substrate, and the source (Sb) of the second bias transistor (Tb) to the substrate (SUB).

This invention discloses a biological alternative control method for suppressing the invasion of *Chrysanthemum indicum*, belonging to the field of biological control technology. The method involves intercropping *Artemisia annua* and *Euphorbia milii* in ecosystems where *Chrysanthemum indicum* has already invaded or is susceptible to invasion, thereby inhibiting the growth and development of *Chrysanthemum indicum* and achieving ecosystem restoration. Experimental results show that *Artemisia annua* and *Euphorbia milii* are capable of playing a key role in ecosystems where *Chrysanthemum indicum* is susceptible to or has already invaded. In the dry spring of northern regions, intercropping *Artemisia annua* and *Euphorbia milii* effectively inhibits the growth of *Chrysanthemum indicum* and allows it to occupy its ecological niche, significantly reducing the plant height, biomass, and number of flower buds. This invention provides a solid foundation for the alternative control of the invasive alien species *Chrysanthemum indicum* and the restoration and sustainable management of damaged ecosystems.

The present application belongs to the field of control of vacuum hole filling machine, and relates to a kind of integrated vacuum hole filling machine filling control method and system.The method is based on the hole site density distribution diagram of circuit board and is divided into zones, and an independent prediction and control time domain is set for each zone, and a state vector including the predicted filling volume, slurry flow resistance coefficient and vacuum chamber leakage rate is constructed;In the control process, a plurality of groups of scraper pressure and speed alternative control sequences are generated using a dynamic model, the filling volume deviation, overflow risk and control vector variation of each sequence in the prediction time domain are evaluated by a weight function, a quadratic performance index function is constructed in this way, the optimal control sequence is obtained by solving the quadratic performance index function and the first instruction is executed, and the state vector is updated using a double cycle mechanism to complete the closed-loop control.The present application solves the problem of cavitation and overflow caused by uneven hole site density, and ensures the consistency and stability of hole filling quality.

A method for controlling a road wheel actuator (RWA) of a vehicle includes, using one or more processors: determining an expected cornering state of the vehicle by determining at least one of an expected yaw rate and an expected lateral acceleration of the vehicle; determining an actual cornering state of the vehicle by determining at least one of an actual yaw rate and an actual lateral acceleration of the vehicle; determining a cornering state error based on the expected cornering state of the vehicle and the actual cornering state of the vehicle; generating an RWA control signal based on the cornering state error; and controlling at least one function of the vehicle using the RWA control signal.

The invention belongs to the technical field of vehicle-mounted intelligent control, and discloses an automobile control method and device based on combinatorial search, and the method comprises the steps: obtaining user voice data, carrying out the intention analysis, and obtaining an optimization target and a constraint condition; generating a formalized task description according to the optimization target and the constraint condition; obtaining a user portrait, vehicle environment data and vehicle state data, and constructing a state space vector; performing combined search in a preset atomic action library according to the formalized task description and the state space vector by utilizing a heuristic graph search algorithm to obtain a plurality of alternative control strategies; calculating a comprehensive score of each alternative control strategy by adopting a multi-target evaluation algorithm; and determining and executing a target control strategy according to the comprehensive score or the user selection instruction. According to the method and the device, feasible and cross-domain alternative control strategies can be generated in the preset atomic action library which can be executed by the vehicle and the multi-dimensional environment state space.

To quickly update vehicle control software used for controlling a vehicle when an event requiring improvement occurs.SOLUTION: The software update system 100 includes a monitoring unit 61, an update necessity determination unit 31, and a distribution unit 11. The monitoring unit 61 monitors an operation status of an alternative control means that controls the vehicle in place of the vehicle control software, and acquires a log of the vehicle control software in a period including at least a time point before an operation start time point of the alternative control means when the alternative control means operates. The update necessity determination unit 31 determines the necessity of updating the vehicle control software based on the log acquired by the monitoring unit 61. When the update necessity determination unit 31 determines that the update of the vehicle control software is necessary, the distribution unit 11 distributes the update software for updating the vehicle control software to the vehicle.SELECTED DRAWING: Figure 1

The present disclosure provides a message sending method, device, equipment and storage medium, comprising: analyzing the obtained task information, determining the first control object set corresponding to the task information, determining the target rule group matched with the first control object set from the preset multiple alternative control rules, and sending the target message corresponding to the task information depending on the first control object set and the target rule group. Thus, the flexibility of message sending can be improved.