28results about How to "Meet control requirements" patented technology

The invention discloses a PMSM (permanent magnet synchronous motor) AC servo system speed control method based on improved particle swarm optimization optimization RBF (radial basis function) fuzzy neural network PID control, the system is composed of a speed outer ring and a current inner ring, and the current ring adopts a PI regulator. A speed loop is designed to be an RBF fuzzy neural network PID speed controller, an RBF fuzzy neural network is optimized by improving a particle swarm optimization algorithm, and optimal parameters kp, ki and kd suitable for the PID controller are output. Simulation analysis and experiment results show that compared with a common PID control strategy, a BP algorithm optimization fuzzy neural network PID control strategy and a particle swarm algorithm optimization RBF fuzzy neural network PID control strategy, the particle swarm algorithm optimization RBF fuzzy neural network PID control strategy based on the improved particle swarm algorithm has optimal control performance; the method has the advantages of being high in dynamic response speed, good in control stability, resistant to load disturbance and high in robustness, and the excellent speed control effect of the PMSM alternating current servo system can be achieved.

The invention discloses a pollution source control and removal method for an underground water organic pollution site, and relates to the technical field of site remediation. Firstly, an underground water pollution source is controlled, and a waterproof curtain is built at the boundary of a polluted area. Then an underground water pollution source is removed in a polluted area excavation and ectopic treatment mode, and polluted underground water is collected through foundation pit dewatering in the excavation process and conveyed to wastewater treatment equipment to be treated; the excavated aquifer medium soil is subjected to ex-situ indirect thermal desorption treatment, adsorbed and residual organic pollutants in the soil medium are heated into a gas state to be separated from soil particles, and generated high-temperature waste gas is subjected to activated carbon adsorption treatment after being pretreated. By monitoring underground water around and inside the remediation area, an underground water pollution source is effectively controlled and removed, and the removal rate of soil and underground water pollutants after treatment is close to 100%. The method is thorough in underground water organic pollution site treatment and high in treatment efficiency.

The invention belongs to the technical field of vehicle suspension system control, and discloses a semi-active suspension control system based on Transform architecture, which comprises the following steps: arranging a sensor network, and collecting vehicle dynamic data; using a preset algorithm to align asynchronous data from different sensors, and keeping time sequence consistency of heterogeneous data; the measured value of the sensor i at the time t is xi (t), in the invention, the weight distribution of the state quantity is reduced through a Transform mechanism, the error control quantity caused by the sensor error is avoided, the robustness of the suspension control system to the data exception is improved, and the reliability of the suspension control system is improved. According to the method, stable control can be kept under sensor faults, external attacks and false sensor data injection or extreme road conditions, through a DDPG reinforcement learning control algorithm, the adaptive capacity of the system in a complex and changeable environment is enhanced, different road conditions, loads and driving styles can be rapidly adapted, and the control effect is improved while the calculation efficiency is guaranteed.

The invention belongs to the technical field of control rod arrangement, and discloses control rod bundle grouping arrangement and an in-bundle arrangement method of a 177 reactor core pressurized water reactor, which are used for enhancing the regulation control capability of a control rod and meeting the control requirements of various load changes on the premise of ensuring the safety of a reactor core. According to the in-beam arrangement method, the four strong absorber rods are arranged at the positions of coordinates (4, 4) in the grating array and the positions where the strong absorber rods rotate by 90 degrees, 180 degrees and 270 degrees around an instrument pipe lattice cell respectively; according to the grouping arrangement method, control rod bundles are arranged in a T rod group, an S rod group and an AO rod group in a reactor core of 177 groups of fuel assemblies. According to the technical scheme provided by the invention, on the premise of ensuring the safety of the reactor core, the regulation control capability of the control rod is enhanced, and the control requirements of various load changes are met. Under the specified quantity ratio of the strong absorbers to the weak absorbers, the technical scheme provided by the invention is high in control capability and small in local power distribution disturbance.

The application provides a variable frequency converter double control system switching module and a switching system. The switching module is connected with a main control system, an auxiliary control system and a variable frequency converter, and is used for realizing control and feedback signal transmission among the main control system, the auxiliary control system and the variable frequency converter. The switching module selects the main control system or the auxiliary control system to control the variable frequency converter through a control system selection switch, controls whether to connect an external DC 24V power supply to the switching module through the control system selection switch, and then controls the opening and closing states of a plurality of relay switches by using the DC 24V power supply, so as to realize switching of the control system. The switching module comprises a variable frequency converter connection end, a main control system connection end and an auxiliary control system connection end. The application realizes one-key switching of two sets of control systems of the variable frequency converter, and does not need to reconnect the control circuit.

The utility model discloses a kind of double-section delay output module in fire-fighting equipment, including voltage stabilizing module, single-chip microcomputer chip and two switch output modules, voltage stabilizing module is used to convert external power supply into working voltage and power supply to single-chip microcomputer chip, single-chip microcomputer chip has two control signal output ends, and two control signal output ends can be according to the time sequence interval output control signal set inside single-chip microcomputer chip;The signal input end of two switch output modules is respectively connected with two control signal output ends, to realize the output end interval of two switch output modules and carry out output.The circuit structure of the double-section delay output module is simple, novel, reasonable, can realize interval output two-way switch quantity signal, very good meet the control requirement of complex control loop, improve the flexibility of electrical circuit design.

The invention discloses a method for detecting the content of benzyl chloride in a lamotrigine key intermediate. The detection method based on gas chromatography is good in specificity, precision and repeatability, and the sensitivity meets the control requirements of the impurities. When the method is used for detecting multiple batches of test products, benzyl chloride is not detected.

The application discloses a kind of drive-by-wire steering control method, related device and vehicle, it is related to vehicle control field, by introducing compensator link in steering wheel executor, with the rotation parameter value of execution link output as input, rotation parameter value is converted and handled, and torque compensation value is obtained.The torque compensation value obtained and the torque value of the control link output of steering wheel executor are fused, and then input to execution link to generate corresponding rotation amount.The output torque of execution link is adjusted, not simply dependent on the adjustment of each parameter of control link, only need to convert the rotation parameter output by execution link simply, then feedback to execution link, to meet the requirements of control stability and hand feeling consistency, effectively reduce the workload of debugging, shorten the debugging time, improve the efficiency of debugging.Further reduce the complexity of control link design and debugging of steering wheel controller, ensure steering feeling.

The invention provides a multi-agent cluster obstacle avoidance method and device, electronic equipment and a storage medium, and the method comprises the steps: obtaining initial kinetic parameters of a plurality of agents contained in an agent cluster, the initial kinetic parameters comprising displacement, speed and initial control input; according to the initial kinetic parameters, a plurality of second intelligent agents in a preset range of a first intelligent agent are determined, and the first intelligent agent is any one of the intelligent agents; acquiring a motion parameter of the first intelligent agent and an obstacle position obtained by observation; determining a first control input of the first intelligent agent based on the motion parameter, the obstacle position and the initial kinetic parameter; and performing obstacle avoidance simulation verification on the first intelligent agent according to the first control input. According to the invention, the practicability of a multi-agent cluster obstacle avoidance algorithm can be improved.

The invention relates to a high-integration-level and high-power-density module compatible with Econodual3 packaging. The high-integration-level and high-power-density module comprises a shell, two substrates arranged in the shell, a DC positive terminal, a DC negative terminal and an AC terminal. By overlapping the positive and negative terminals, the two connection regions on the substrate are adjacent and opposite in current, a proximity effect is generated to counteract a magnetic field, and stray inductance is reduced. And a wavy water channel is designed in the bottom plate, so that the cooling liquid is easier to generate vortex, and the heat dissipation efficiency is greatly improved. A driving signal loop is optimized to obtain low switching loss, heat resistance is reduced through copper paste sintering on the back faces of the chips and the substrate and DTS sintering connection on the front faces of the chips, parallel connection of 10 chips with the size of 6 mm * 7 mm and the total area of 420 mm < 2 > sic is achieved, a current sensor is further integrated in a shell, nanosecond-level overcurrent protection can be achieved, and the heat dissipation and control requirements of high-current and high-power-density application scenes are met. The overall structure is symmetrically designed, the high-voltage part is located on the outer side, the low-voltage signal control and acquisition part is located on the inner side, the wiring design of a PCB is facilitated, and the size of the module can be compatible and matched with Econodual3 packaging.

This invention discloses a control method for a proportional solenoid valve used in a hydraulic retarder, mainly addressing the technical problems of existing control methods, such as long pressure response time, large overshoot, and poor tracking performance. The control method includes: periodically acquiring the feedback pressure of the hydraulic retarder's working chamber and the input signal of the proportional solenoid valve; determining the current target pressure request state and calculating the current target current of the proportional solenoid valve based on the determination result; calculating the current duty cycle of the proportional solenoid valve; finally, superimposing chatter and outputting the final duty cycle, thereby achieving control of the proportional solenoid valve used in the hydraulic retarder. This control method can achieve precise control of the proportional solenoid valve and has the advantages of short response time, small overshoot, and good tracking performance.

The present application provides a refrigerant and a method for preparing the same. The refrigerant is composed of a first component, a second component and a third component, wherein: the first component is 3,3,3-trifluoropropyne; the second component is trifluoroiodomethane; the third component is one of propylene or fluoroethane; in the refrigerant, the content of the first component is a first preset value, the content of the second component is a second preset value, and the content of the third component is a third preset value; satisfying: the first preset value, the second preset value and the third preset value are all greater than zero, and the sum is 100%. The present application is a refrigerant composed of three components, with a GWP of less than 150 and an ODP of 0. Under the premise of ensuring good environmental performance of the refrigerant, the thermal performance is equivalent to R290, and the flammability is greatly reduced, which can solve the technical problems of high flammability and poor safety performance of R290 refrigerant.

The present application relates to the field of biological sample collection device, in particular to a biological sample collection information tracing device, comprising: a tube body for storing biological samples; a sealing tube cover detachably installed at the opening of the tube body; a trigger component arranged between the tube body and the sealing tube cover; a clock chip cooperating with the trigger component to determine the opening time of the sealing tube cover; a memory for storing the opening time detected by the trigger component; a near field communication module for transmitting the opening time stored in the memory to a reading device; a microcontroller for processing the state of the trigger component to determine whether the sealing tube cover is opened and transmitting the information of the opening time to the memory; a circuit board for connecting the trigger component, the clock chip, the memory, the near field communication module and the microcontroller. The present application realizes the digitization and objective tracing state of the biological sample as soon as it is collected from the outside.

This invention discloses a boundary signal control method based on traffic elasticity theory, belonging to the fields of network elasticity science and urban traffic management. The method includes: acquiring the urban traffic network topology, traffic flow information, and signal control data; establishing a capacity multigraph of the traffic network based on its topology, defining a finite set of roads, and dividing it into multiple traffic sub-regions; constructing boundary signal phase models for the boundary regions of each traffic sub-region, and constructing a global signal phase matrix based on the signal phases at each node, thus establishing a control signal set; establishing elasticity state curves for each traffic sub-region and calculating the elasticity values ​​of the traffic sub-regions; constructing an incremental model of the road network traffic flow system based on traffic flow information and elasticity values, establishing an output vector prediction expression, establishing an error prediction model, and designing a model predictive controller. This invention can improve the traffic efficiency of the road network and solve the problem of existing signal control schemes being insufficiently timely and effective.

The invention provides a yeast fermentation control method and a yeast fermentation system, and belongs to the technical field of brewing and automatic control. The yeast fermentation system comprises a yeast room, an execution mechanism, a temperature sensor, a humidity sensor, a yeast fermentation controller and an upper computer. The yeast fermentation control method comprises the following steps: constructing and optimizing a yeast fermentation controller; fusing the temperature detection data and the humidity detection data; the yeast fermentation controller carries out learning and training, and outputs the starting time of each execution mechanism; and the upper computer controls the execution starting or stopping of the corresponding execution mechanism. According to the method, the adaptive weighted fusion algorithm based on deep learning is adopted to perform data fusion, and the group intelligent optimization strategy is adopted to optimize the yeast fermentation controller, so that the control requirements of the yeast fermentation system on temperature and humidity are met, the accuracy of yeast room environment temperature and humidity control and good follow-up performance of the environment temperature and humidity are ensured, and the fermentation quality is improved; the energy consumption is reduced and the fermentation quality is ensured.

The embodiment of the invention discloses an order aggregation processing method, device and system and electronic equipment. A specific embodiment of the method comprises the steps of determining whether order information matched with a value transfer request exists in response to the received value transfer request sent by a business system; in response to determining that the matched order information does not exist, writing the order information into a machine account system, and generating a receivable machine account record of the order information; determining a value receiving system for processing the value transfer request according to a value transfer mode of the value transfer request; and processing the value transfer request according to the processing flow of the value receiving system to complete value transfer. The implementation mode is related to e-commerce and payment technologies, different payment modes can be aggregated into one payment process, docking with each payment cashier system is realized, and thus the docking complexity is reduced. And moreover, automatic writing of financial related accounting data can be realized, and financial management and control requirements are met.

The invention provides a doubly-fed variable-speed pumped storage unit control method and device based on model prediction, and relates to the technical field of data processing. The doubly-fed variable-speed pumped storage unit control method based on model prediction comprises the steps that a pump turbine model, a doubly-fed motor model and a water diversion system model corresponding to a target doubly-fed variable-speed pumped storage unit are constructed; establishing a pump turbine control strategy, and establishing a doubly-fed motor control strategy based on DC bus voltage control of the grid-side converter and rotor voltage control of the rotor-side converter; substituting the error equation into a target function to generate a quadratic cost function, and solving an optimal analysis solution of a control variable under a model prediction control framework to generate a dynamically optimized control parameter; and adjusting the target function and the control parameters in real time by using a pump turbine control strategy and a doubly-fed motor control strategy. According to the technical scheme, the control accuracy and adaptability of the doubly-fed variable-speed pumped storage unit can be improved.

The present invention relates to the field of high-speed train control, and in particular to an improved virtual marshaling anti-disturbance control method for high-speed trains based on a GRO algorithm, including: establishing a dynamic model of a virtual marshaling high-speed train; establishing an ADRC controller, which includes: a tracking differentiator, a nonlinear state error feedback control law, and an extended state observer; and using the fastest comprehensive function in the tracking differentiator to establish a fastest feedback system; after completing population initialization and setting a fitness function, using the GRO algorithm to implement self-tuning of five parameters to be tuned of the ADRC controller to obtain a GRO-ADRC control model; setting line parameters and the initial state of a virtual marshaling high-speed train, obtaining the actual vehicle distance during the operation of the dynamic model of the virtual marshaling high-speed train, and inputting the actual vehicle distance into the GRO-ADRC control model to output a control torque for control. The method can ensure the stable running of virtual marshaling high-speed trains.

The ballast bed spraying device comprises a water tank and two water outlet pipelines arranged at the bottom of a vehicle body side by side, a plurality of nozzles are arranged on each water outlet pipeline side by side, one end of each water outlet pipeline is open, the other end of each water outlet pipeline is closed, and the open end of each water outlet pipeline is communicated with the water tank through a connecting pipe. After the connecting pipe is connected out of the water tank, a water pump, an electromagnetic valve and a flow meter for detecting the water flow in the pipeline are sequentially arranged on the pipeline; the water pump is controlled by a motor; the controller is used for collecting signals of the flow meter and further controlling the rotating speed of the motor and on-off of the electromagnetic valve; one of the water pumps on the two connecting pipes is a small-displacement water pump, and the other water pump on the two connecting pipes is a large-displacement water pump. The two water pumps adopt a large displacement configuration and a small displacement configuration, so that not only can high-precision variable control in a small displacement range and a medium displacement range be met, but also high-precision variable control in a large displacement range during full displacement output of the two water pumps can be met.

The utility model discloses a kind of level signal triggering module in fire-fighting equipment, including edge detection module, single-chip microcontroller chip and relay control output module, edge detection module is used to detect the edge change of external level signal, and when detecting the falling edge of external level signal, it makes its signal output end open circuit, when detecting the rising edge of external level signal, generating trigger signal;The signal input end of single-chip microcontroller chip is connected with the signal output end of edge detection module, and single-chip microcontroller chip can be controlled according to trigger signal to make relay control output module be in conduction state.The structure of the level signal triggering module is simple, novel, reasonable, can be realized when level signal jumps output an adjustable short pulse trigger signal, and based on the short pulse trigger signal, the start of relay control output module is realized, meets the control requirement of complex control loop, improves the flexibility of electrical circuit design.

The present invention discloses a method and container for constructing a multimodal network SONiC network element control channel. The method includes: constructing a gRPC control channel with a controller to realize the communication connection between multiple programmable network element devices and the controller; creating a link discovery data packet forwarding thread inside the container, forwarding the LLDP data packet back to the controller through the network element device, thereby obtaining the overall network topology and device connectivity; parsing the flow table control information from the controller from the control channel, and transferring it to a local configuration file through a flow table queue update algorithm; realizing the network element proxy function inside the container, and using the proxy configuration to solve the control information flow table forwarding problem in the hardware difference scenario in the network element device. The present invention solves the problems of modal adaptation and modal control in multimodal networks; meets the control requirements of multimodal network element devices, adapts to the SONiC operating system container architecture, and has the advantage of stabilizing container performance.

The present invention provides a method for preparing an on-site metallographic coating block and a method for using the same. The method for preparing the on-site metallographic coating block comprises: (1) coating the wall; (2) filling; (3) melting; (4) cooling; and (5) demoulding. The present invention adopts green and degradable polymer materials to prepare the metallographic coating block and perform metallographic coating operations, thereby avoiding the disadvantage of using acetone as a solvent, and has the advantages of convenient operation, short time, no pollution, no harm to the human body, reusability, and good coating effect.

According to the overflow control method for the booster compressor, when the pressure of a closed hydraulic part is too high, a pressure control valve is opened, and hydraulic oil of the closed hydraulic part flows to an oil outlet from an oil supply port, so that the pressure of the closed hydraulic part is limited; meanwhile, an air control port is formed in the pressure control valve, and the pressure control valve automatically adjusts the overflow pressure according to the change of the exhaust pressure through the air control port. The pressure of the closed hydraulic part can be limited by controlling the opening and closing of the pressure control valve, and the actual overflow pressure can be automatically adjusted according to different exhaust pressures, so that the energy consumption of the system is reduced.

This invention provides a combined injection and extraction steam valve, relating to the field of steam valves, including a collection structure. The collection structure is installed at the bottom of the bottom valve body and is hollow. The top of the side chamber communicates with the interior of the collection structure through a connecting hole, and the interior of the collection structure communicates with the interior of the top structure. After steam is generated inside the bottom valve body, it enters the interior of the collection structure for collection and storage, facilitating the collection of the liquid generated by the steam. Simultaneously, when the steam pressure is high, the pressure can enter the interior of the side chamber through the connecting hole, causing the piston plate to move downwards. This compresses the spring through the lower pressure rod and the force plate structure, relieving pressure. When the pressure is excessive, the piston plate moves excessively to the discharge port position, allowing the steam to be discharged through the discharge port to release pressure. This solves the problems of common combined injection and extraction steam valves where steam generates liquid, liquid collection and processing are laborious, and steam pressure is excessive.

The present invention belongs to the technical field of soil filling engineering in foundation, and discloses a method for calculating the layered laying thickness of single-point dynamic compaction filling soil. The calculation method includes the following steps: calculating and determining the corresponding plastic body strain threshold when the filling soil reaches the required dry density requirement; using a numerical simulation method to calculate and determine the distribution of plastic body strain in the filling soil under dynamic compaction; taking the maximum depth from the tamping surface corresponding to the plastic body strain threshold in the distribution diagram of the plastic body strain as the layered laying thickness of the dynamic compaction filling soil. The present invention can achieve a dense connection between the upper and lower tamping layers of soil in the process of layered dynamic compaction filling of multiple layers of soil, ensuring that the compaction degree of the entire multi-layer filling body meets the control requirements, and the calculation process is simple to operate, and can conveniently realize the design analysis and calculation of the layered laying thickness problem of single-point dynamic compaction filling soil, and has good technical rationality and practical operability.

The present invention relates to a safety control system, design method and control method for construction of immersed tube section barge. The safety control system for construction of immersed tube section barge monitors the monitoring parameters in the construction process of immersed tube section barge in real time through a monitoring module, and analyzes the control index of the required control parameter and the real-time monitoring result of the monitoring parameter in real time through an early warning module to judge whether there is a safety risk in the construction of immersed tube section barge. After judging that there is a safety risk in the construction of immersed tube section barge, the decision module uses the control module to realize regulation so that the real-time monitoring result of the monitoring parameter meets the relevant requirements of the control index of the required control parameter, which can realize the real-time evaluation and early warning of the safety risk of the construction of immersed tube section barge, and realizes the real-time regulation of the safety of the construction of immersed tube section barge through the control module, which greatly improves the decision-making and regulation efficiency of the construction safety risk, thereby greatly reducing the construction safety risk and meeting the control requirements of the construction of immersed tube section barge.

The present invention discloses a method and system for determining the attribute parameters of a target motor, and belongs to the field of motor control technology. The method of the present invention comprises: determining the initial motor size of the target motor to be controlled according to electromagnetic analysis; determining the amplitude-frequency characteristics of the injection signal suitable for the target motor; obtaining the adjusted motor size; determining the target motor's main body parameters according to the adjusted motor size of the target motor and the limiting factors of the target motor; adjusting the parameters and control strategy of the initial motor control model based on the target motor's main body parameters, obtaining the adjusted motor control model, and performing simulation operation on the adjusted motor control model; using the target motor's main body parameters and the adjusted motor control model as the target motor's attribute parameters. The present invention can meet the control requirements of the motor through the attribute parameters, and can effectively suppress the high-frequency harmonic characteristics of the motor.