21results about How to "Shorten control time" patented technology

The invention discloses a silage corn harvester header height real-time automatic lifting system based on deep reinforcement learning, which comprises an angle sensor, a DDPG controller and a PID controller, the angle sensor can convert angle data between a header and the ground into an electric signal and output the electric signal to the DDPG controller, the input of the DDPG controller is a target value, an actual value and a deviation value, and the PID controller is used for controlling the real-time automatic lifting of the header height of the silage corn harvester. And an experience pool is added for the DDPG algorithm. The DDPG controller outputs a signal to the PID controller, the PID controller is provided with two signal input ends which are used for inputting an action signal and a deviation value respectively, the output end of the PID controller is connected with the hydraulic system, the header is controlled to ascend and descend through the hydraulic system, a target value is given by the outside, an actual value is fed back by the angle sensor, and the deviation value is the difference value between the target value and the actual value. The header lifting device has the advantages that automatic lifting of the header is completely controlled by a DDPG algorithm and a PID controller, and high automation of lifting of the header is achieved.

The invention discloses a multi-agent-based control method and system for an improved consistency algorithm. The method comprises the following steps: building a coordinated voltage control model of a light-hydrogen-storage system consisting of a distributed photovoltaic system and a hydrogen energy storage system; in the photovoltaic power generation process, an inverter is responsible for stably transmitting reactive power to a power network, a certain adjusting capacity is reserved, and the voltage of a photovoltaic grid-connected point is adjusted and controlled by absorbing or releasing reactive electric energy; the hydrogen energy storage system monitors the voltage change condition by using the peak clipping and valley filling characteristics of the hydrogen energy storage system, plays a role in smoothing the influence brought by photovoltaic power generation fluctuation in a certain interval range, and optimizes an electrolytic cell; the principle of a consistency algorithm is analyzed, a typical finite time consistency algorithm is improved, and control gains c1 and c2 are introduced, so that the multi-agent system achieves average consistency within limited time; according to the invention, the control time of the photovoltaic inverter and the hydrogen energy storage system is reduced, and the reliability of a multi-agent coordinated voltage control strategy is improved.

The invention relates to a louvered air window air passing quantity regulation and control method based on a blade angle-air resistance characteristic curve, in particular to the technical field of mine ventilation. The method comprises the following steps: firstly, fitting ventilation parameters of an air window area to construct a blade angle-air resistance characteristic curve and a blade angle-air window air passing volume prediction curve, and obtaining the real-time air passing volume of an air window according to the blade angle-air resistance characteristic curve and roadway pressure difference; secondly, the target air volume and a target air volume error threshold value are set, and the blade angle is regulated and controlled for the first time according to the target air volume through a blade angle-air window air volume prediction curve; and finally, starting an air window excess air volume equivalent regulation process by utilizing the relationship between the air volume regulation error and the air volume error threshold value, repeatedly regulating the blade angle until the required excess air volume, and ending the equivalent regulation process. Therefore, accurate and intelligent regulation and control of the air volume of the mine laneway are achieved, accurate supply of the air volume needed by an air using site is ensured, and an accurate air volume regulation and control method and an execution device are provided for construction of an intelligent ventilation system.

The present invention discloses a method for humanoid robot standing with variable load based on model reference adaptive control, comprising the following steps: constructing a three-link model of the humanoid robot, deriving its dynamic equation, and obtaining the joint torque expression of the three-link model; using the calculated joint torque as the feedforward torque, and forming the joint torque control quantity together with the output of the PD controller, and inputting it into the control system of the humanoid robot; calculating the update rate of the dynamic parameter estimation value, updating the feedforward torque, until the control error of the joint angle and the joint angular velocity is eliminated, and completing the construction of the model reference adaptive control algorithm when the humanoid robot stands with both legs side by side; and debugging the humanoid robot standing with variable load. The present invention uses feedforward control, and calculates the joint torque required to support the gravity load through the dynamic equation of the three-link model when the legs stand side by side, and directly adds it to the output end of the PD controller, which not only shortens the control time, but also ensures the joint control accuracy.

This application provides a power supply system and grid-connected control method. The power supply system includes a power source, an inverter, a transformer, a power station acquisition module, and an inverter acquisition and control circuit. The power station acquisition module acquires the amplitude and frequency of the grid-connected voltage at the grid connection point and obtains a power station power adjustment signal based on the amplitude and frequency of the grid-connected voltage. The inverter acquisition and control circuit acquires the amplitude and frequency of the inverter's output voltage and obtains an inverter power adjustment signal based on the amplitude and frequency of the output voltage. Based on the power station power adjustment signal and the inverter power adjustment signal, the circuit controls the inverter to output a target output power. Using this application, the output power of the inverter can be adjusted through the power station acquisition module and the inverter acquisition and control circuit. The structure is simple, the control method is convenient, the control accuracy and regulation efficiency are improved, the control time is reduced, and the control cost is lowered.

This disclosure provides a circuit topology for a switching magnet power supply, used to provide excitation current to a magnet load, which is an inductive load. The circuit topology includes: a first voltage source, a second voltage source, a capacitor, a freewheeling diode, an insulated-gate bipolar transistor (IGBT), a resistor, and a blocking diode. The first voltage source, second voltage source, capacitor, and freewheeling diode are connected in parallel, and the IGBT is connected in series between the capacitor and the freewheeling diode. The voltage of the first voltage source is higher than that of the second voltage source. The first voltage source provides the excitation voltage, and the second voltage source serves as the power source. The first voltage source is connected in series with the resistor, and then in parallel with the series-connected second voltage source and the blocking diode. The capacitor and the freewheeling diode are connected in parallel across the series-connected second voltage source and the blocking diode, respectively. This circuit topology is simple, highly reliable, and has a short control time.

This application provides a power supply system and a grid connection control method. The power supply system includes a power supply, an inverter, a transformer, a power station collection module, and an inverter collection control circuit. The power station collection module is configured to obtain an amplitude value and a frequency of a grid connection voltage at a grid connection point, and obtain a power station power adjustment signal based on the amplitude value and the frequency of the grid connection voltage. The inverter collection control circuit is configured to obtain an amplitude value and a frequency of an output voltage of the inverter, obtain an inverter power adjustment signal based on the amplitude value and the frequency of the output voltage, and control, based on the power station power adjustment signal and the inverter power adjustment signal, the inverter to output a target output power. According to this application, an output power of the inverter may be adjusted by using the power station collection module and the inverter collection control circuit. A structure is simple, and a control method is simple. This improves control precision and adjustment efficiency, reduces control time, and reduces control costs.

The invention provides a data sampling device of a control system, the control system and a data sampling method, and the system comprises a sampling module which comprises a plurality of sampling channels; the control module is used for sequentially triggering the plurality of sampling channels to start sampling in each triggering period; the trigger time delay between the adjacent triggered sampling channels is less than the sampling period of the sampling channels. The method comprises the following steps: in each triggering period, sequentially triggering a plurality of sampling channels to start sampling; wherein the trigger time delay between the adjacent triggered sampling channels is smaller than the sampling period of the sampling channels; and sequentially receiving data output by the plurality of sampling channels. According to the technical scheme, the sampling delay is reduced through parallel interval sampling of the multiple sampling channels, the method can be applied to a high-frequency control system, and the control effect is improved.

This invention relates to the field of grinding control, and more particularly to a method and system for balanced distribution control of grinding force in dual-sided synchronous feed grinding. The method includes: dividing the grinding disc into multiple sub-regions according to multiple preset directions, and obtaining the vibration sequence of each sub-region; obtaining a spectrum diagram and vibration energy of each frequency band based on the vibration sequence to obtain the direct contact degree; performing differential processing on the vibration sequence to obtain a vibration differential sequence, and obtaining the propagation contact degree based on the wave similarity; fusing the direct contact degree and the propagation contact degree to obtain the feed contact degree, and obtaining a basic adjustment coefficient; obtaining a correction coefficient based on the energy differential sequence corresponding to the vibration sub-sequence, and combining it with the basic adjustment coefficient to obtain a feed adjustment coefficient; calculating the target feed amount based on the feed adjustment coefficient and the feed amount sequence to complete the balanced distribution control of grinding force in dual-sided synchronous feed grinding. This invention can improve the uniformity of grinding force distribution and machining stability during the grinding process.

This invention belongs to the field of bulldozer technology and provides a safety control method and system for bulldozer escalators. It controls the escalator's ascent or descent when the following conditions are met simultaneously: the bulldozer is stopped, the bulldozer is in zero gear, the escalator limit switch operation signal and safety judgment signal are mutually exclusive, and the circuit is normal. The system also considers the escalator's descent during bulldozer deceleration. It considers whether there are simultaneous escalator ascent and descent switch press signals, whether the bulldozer is stopped, whether the bulldozer is in P gear, whether the escalator limit switch operation signal and safety judgment signal are mutually exclusive, and whether the circuit is normal, thus maximizing the safety of ascent and descent control. During escalator descent control, it achieves the goal of simultaneously stopping the engine, opening the door, and escalator descent, shortening control time and improving operator efficiency while ensuring safety.

The present invention specifically relates to a micro blood glucose measuring device and a blood glucose measuring method based on liquid crystal polarization regulation, so as to solve the technical problems of the existing blood glucose measuring device by polarimetry, such as complex structure, large volume, low precision and poor real-time performance, or high cost and process requirements. The present invention comprises a light source module, an electrically controlled liquid crystal polarizing module, a first coupling lens, an electrically controlled liquid crystal polarizing module, a detector module and an electrically controlled module. The electrically controlled module is used to control the phase of the electrically controlled liquid crystal polarizing module and the electrically controlled liquid crystal polarizing module, which can be directly placed in a set polarization state. The electrically controlled module is used to realize synchronous triggering of the electrically controlled liquid crystal polarizing module and / or the electrically controlled liquid crystal polarizing module and the detector module, which can realize real-time detection of the polarization state. The device has high control precision, simple structure, low cost, small volume and high measurement efficiency, and meets the development requirements of high precision, light weight and portability of non-invasive blood glucose meters.

The present invention provides a control device and a control method for a butterfly valve. The control device and the control method for a butterfly valve of multiple embodiments implement a first control mode in which the plate angle is pre-adjusted by means of pressure level high-speed rotation information, which can shorten the control time and control cycle required for the chamber to reach the target pressure, and improve the quality and reliability of the process performed in the chamber. The control method and the control device for a butterfly valve of multiple embodiments can update the pressure level high-speed rotation information based on the state change that occurs as the process is performed, thereby performing more precise control.

The invention relates to the technical field of solvent purification, and discloses a purification control method of ethyl silicate and provides a purification device.The purification control method comprises the steps that operation parameters of all rectifying towers are detected respectively, and the operation parameters comprise the reflux ratio, the tower top temperature, the tower bottom temperature and the pressure in the towers; taking the rectifying tower with the maximum deviation degree as a main control rectifying tower, and respectively defining other rectifying towers as static rectifying towers, dynamic rectifying towers or condition triggering rectifying towers according to the relative positions of the other rectifying towers and the main control rectifying tower and a preset contrast relationship; when the controlled parameters of the active rectifying tower are adjusted, the operation parameters of the other rectifying towers are detected synchronously, the static rectifying tower is adjusted according to a preset static adjusting strategy, and the static adjusting strategy, the dynamic adjusting strategy and the condition triggering adjusting strategy are executed repeatedly till the parameters and all levels of rectifying towers meet the preset operation parameters.

The invention relates to the technical field of electromechanical control, in particular to a method and system for improving motor control performance based on the MPSoC technology, and the system comprises a motor body, an MPSoC chip and an upper computer. The MPSoC chip comprises a PL module and a PS module; the PL module is used as an FPGA structure, and the PS module is used as an MCU structure; the PL module and the PS module are connected through an AXI bus in the chip and carry out information interaction; the PL module is connected with the motor body, and the PS module is connected with the upper computer; according to the electric drive control system, the MPSoC chip is used as an electric drive control main body, so that the control period and the fault protection response time are reduced, and the response efficiency of the electric drive control system is improved.

The utility model provides a circuit for driving a direct current electromagnet to act by an optical coupler and an IGBT in an ATS. The circuit comprises a resistor R1, a resistor R2, a resistor R3, a resistor R4, a resistor R5, a resistor R6, a resistor R7, a resistor R8, an optical coupler U1, a non-polar capacitor C1, a non-polar capacitor C2, a diode D1, a voltage stabilizing diode D2, an NPN triode Q1 and an IGBT Q2. An INPUT end drives an NPN triode Q1, an optical coupler U1, an IGBT Q2 and a voltage stabilizing diode D2 to work by receiving a high-level driving signal and a low-level driving signal, so that an electromagnet acts; and the resistor R4, the non-polar capacitor C2 and the optical coupler U1 form a protection loop to protect the IGBT Q2 from being burnt out by overvoltage. According to the utility model, the single-chip microcomputer sends out a control signal to control the electronic device to drive the electromagnet to act, and through efficient electromagnet action driving, compared with a relay and other mechanical devices, the safety is improved, the control time is greatly shortened, and the overall service life of the electromagnet ATS is prolonged.

The present invention provides a method for controlling a cathode gas subsystem of a fuel cell system under variable load, which specifically comprises the following steps: calculating a loading current value corresponding to the power of a whole vehicle, a target air pressure and a target air flow rate of the cathode gas at the current power, and if the actual air pressure or the actual air flow rate is not within an error range, adjusting and controlling the air compressor speed and the electronic throttle opening to reduce the pressure deviation and the flow deviation, until the pressure and the flow rate at the idle power point are controlled within the error range; calculating the current target air pressure and the target air flow rate according to the current actual loading current value, calculating the deviation value between the actual pressure and the target pressure, and calculating the deviation value between the actual flow rate and the target flow rate, and if the pressure deviation value or the flow rate deviation value is not within an allowable error range, controlling the air compressor speed or the electronic throttle opening to reduce the pressure deviation or the flow rate deviation, until the pressure deviation and the flow rate deviation enter the allowable error range, and reaching a steady state of pressure and flow control.

The invention belongs to the technical field of power system regulation and control, and particularly relates to a regulation and control method and system for power balance of a distribution network system. The method comprises the steps that grid division is carried out on a distribution network system, each grid comprises a power supply and a load, the power supply comprises a new energy power supply and a traditional power supply, and the load comprises a flexible load; when the total power of the power supply and the total power of the load in the grid are unbalanced, regulating and controlling the power of the flexible load or the power of the new energy power supply in the grid in situ according to the total power of the power supply and the total power of the load in the grid; if the grid is still unbalanced after regulation and control, the distribution network monitoring system is used for regulating and controlling the traditional power supply power in the grid, so that the total power supply power and the total load power in each grid are balanced, the regulation and control time is shortened, the communication and operation pressure of the distribution monitoring system is reduced, the source load power in the grid can be quickly balanced, and the power of the whole distribution system is further quickly balanced; electricity utilization requirements of different types of loads are met, and overall reliable operation of a distribution network system is guaranteed.

The invention discloses a water quality measurement and control system for fishery breeding, which comprises a data acquisition module, a water quality management module and an abnormal early warning module, and is characterized in that the data acquisition module is used for collecting comprehensive detection data of water quality in a breeding pond and inputting comprehensive information and historical processing data of the breeding pond into the system; the water quality management module is used for analyzing abnormal parameters of water quality, further analyzing mutual influence among the abnormal parameters of the water quality, determining primary and secondary relations of the abnormal parameters according to an analysis result, calculating the concentration and the feeding amount of a water quality conditioning agent according to the abnormal parameters, calculating the operation power of oxygen pumping equipment and marking abnormal areas in a culture pond; a water quality regulator is sprayed according to the abnormal parameters of the abnormal area in the culture pond to regulate and control the water quality, the abnormity early warning module is used for reminding a farmer through the user side when the water quality of the culture pond is abnormal, and the system has the advantages of being high in accuracy and efficiency.

The present invention discloses a posture-controlled experimental pool aerial vehicle control system and method, which belongs to the field of aerial vehicle control. The system includes an image acquisition module, a host computer, and an aerial vehicle system, wherein the image acquisition module and the aerial vehicle system are both connected to the host computer. The image acquisition module acquires image information of user skeleton nodes. The host computer converts the received image information into user skeleton node positions, and performs logical judgment with the user action skeleton node positions of preset control instructions, and issues instructions. The aerial vehicle system receives instructions issued by the host computer and controls the movement of the aerial vehicle. The user actions are used and controlled by acquiring user skeleton nodes and judging in real time through system preset logical judgment and support vector machine. The system can effectively enable multiple users to control the aerial vehicle in real time at different positions. The system can detect up to 6 controllers at the same time, and the algorithm has a recognition rate of 83% for user-defined actions on the test set.

The present disclosure relates to a signal control method and device. The method includes: collecting electromyographic signals of a target limb, the electromyographic signals indicating a target action of the target limb; sending a data signal to a terminal according to the electromyographic signals, so that the terminal executes a second operation instruction corresponding to the data signal before acquiring a first operation instruction according to the target action, and the second operation instruction is the same as the first operation instruction. The wearable device of this technical solution sends a data signal to the terminal according to the collected electromyographic signals, so that when the user sends the first operation instruction to the terminal, the terminal has executed the second operation instruction corresponding to the data signal before receiving the first operation instruction, and the second operation instruction is the same as the first operation instruction, so that the user can feel that the terminal executes the first operation instruction at the same time as the first operation instruction is sent, without waiting for the time when the user sends the first operation instruction to the terminal, shortening the control time and improving the user experience.

The invention relates to the technical field of new energy photovoltaic power generation and communication thereof, in particular to a photovoltaic data acquisition and concurrent regulation and control system and a construction and implementation method thereof. The system comprises a wireless acquisition and forwarding device, a wireless routing device and a photovoltaic access intelligent encryption terminal, wherein the wireless acquisition and forwarding device, the wireless routing device and the photovoltaic access intelligent encryption terminal are electrically connected with corresponding power supplies respectively; the photovoltaic access intelligent encryption terminal is used as a core signal to access the wireless acquisition and forwarding device; or when the site is large, the wireless routing device is used as relay equipment, and the corresponding wireless acquisition and forwarding device is accessed; the wireless acquisition and forwarding device is in signal connection with the photovoltaic inverters, and each photovoltaic inverter corresponds to a photovoltaic unit. According to the invention, the LoRa wireless communication technology is applied to photovoltaic data access and regulation, so that the communication distance can be effectively increased, an ad hoc network in a region is realized, and concurrent regulation of a plurality of photovoltaic inverters is realized based on a local network.