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128results about How to "Improve control efficiency" patented technology

Remote-control system of stratospheric airship and control method thereof

ActiveCN106828860AImprove environmental adaptabilityImprove self-fault toleranceRigid airshipsPosition/course control in three dimensionsWork statusDecision-making
The invention relates to a remote-control system of a stratospheric airship and a control method thereof. The control system is divided to four levels: a decision-making level for executing the selection and switch of a remote-control flight mode according to the actual working state data, and sending a corresponding mode command; a planning level for dynamically planning and generating an airship motor drive command according to the mode command sent by the decision-making level; an executing level for realizing the drive control to an airship motor according to the motor drive command of the planning level; and a perceiving level for finishing the real-time monitoring and data collection of the airship working state, and providing the original data of the airship working state to the decision-making level. The four-level control system architecture design of the control system is capable of simplifying the control device, improving the control efficiency, and fundamentally solving the problems of the function, efficiency and reliability of the near space airship ground and airborne control system.
Owner:北京天恒长鹰科技股份有限公司

Wave pitching motion control method and system for offshore floating type wind turbine generator

PendingCN121993345AImprove controlAccurate prediction of wave loadsWind motor controlMachines/enginesDynamic modelsNetwork model
The invention discloses a wave pitching motion control method and system for an offshore floating type wind turbine generator, and belongs to the technical field of offshore wind power equipment control. The method comprises the following steps: signal acquisition: acquiring unit operation state, marine environment and pitching motion state parameters in real time; wave load prediction: predicting a future wave load based on the improved LSTM neural network model; evaluating a pitching motion state, pre-judging a motion trend through a kinetic model, and judging whether the motion trend exceeds a safety threshold value or not; cooperative control instruction generation: generating cooperative control instructions for fine tuning of a variable pitch angle, a generator torque and a cabin yaw angle based on an MPC algorithm; and control execution and feedback correction: driving an execution mechanism to act and dynamically correcting a control instruction. By accurately predicting the wave load, cooperatively adjusting multiple controllable components and dynamically correcting, efficient and accurate suppression of pitching motion is achieved, and the unit operation stability, the wind energy capturing efficiency and the equipment safety are improved.
Owner:HARBIN ENG UNIV

Pipeline structure identification method, pipeline structure identification device and semiconductor equipment

The invention relates to the technical field of semiconductor equipment, and provides a pipeline structure identification method, a pipeline structure identification device and semiconductor equipment, and the method comprises the steps: identifying a pipeline control set from each visual element contained in a graphical interface for displaying a pipeline diagram; wherein the types of the pipeline controls comprise pipelines, multi-way pipe fittings and valves; the pipeline control of the pipeline type has a pipeline flow direction; on the basis of the control connection judgment sub-process, determining that each pipeline control in the pipeline control set has a subsequent pipeline control with connected ports or overlapped controls in the pipeline flow direction, so as to obtain a pipeline connection structure; identifying each pipeline path in the pipeline connection structure to form a pipeline path set; and determining an effective path in the pipeline path set based on the flow direction relation between the ends of the pipeline control of the multi-way pipe fitting type in different pipeline paths. Therefore, the connection and the upstream and downstream relation between the pipeline nodes can be automatically extracted according to the displayed pipeline diagram, and the node control efficiency is effectively improved.
Owner:SHANGHAI WEIFU SEMICON EQUIP CO LTD

Equipment grouping methods, devices, electronic equipment and storage media

This disclosure relates to a device grouping method, apparatus, electronic device, and storage medium. The method includes obtaining at least one first received signal strength corresponding to at least one device; performing clustering processing on at least one device based on the at least one first received signal strength corresponding to at least one device to obtain a first clustering result; dividing at least one device into at least one spatial group based on the first clustering result; and grouping the devices in each spatial group according to device type to obtain at least one device type group corresponding to each spatial group. This method allows for grouping devices based on the space in which they are located, enabling unified control of devices within the same space, greatly improving device control efficiency and flexibility, and thus enhancing the device control experience.
Owner:NINGBO FOTILE KITCHEN WARE CO LTD

End-to-end control method, system, equipment and product of humanoid robot

The invention discloses an end-to-end control method, system, device and product of a humanoid robot. The method comprises the steps of obtaining a multi-modal sensing data set and a task instruction of the humanoid robot in a target scene; constructing a scene adaptation model based on the target scene and the multi-modal perception data set; guiding the scene adaptation model to generate a control instruction based on a preset scene reward function; and generating a control interface based on the multi-modal sensing data set, the task instruction and the control instruction, and performing end-to-end control on the humanoid robot based on the control interface. The working efficiency of the humanoid robot can be improved, and the humanoid robot can be widely applied to the technical field of robots.
Owner:广州里工实业有限公司

A method for solving the inverse kinematics of a robotic arm with autonomous planning of redundant parameters

This invention relates to a method for solving the inverse kinematics of a robotic arm based on autonomous planning of redundant parameters, comprising: Step 1, the rotation axes of joints 1 to 3 of the robotic arm intersect at point Ps and are designated as the shoulder joint; the rotation center of joint 4 is Pe and is designated as the elbow joint; the rotation axes of joints 5 to 7 intersect at point Pw and are designated as the wrist joint; Step 2, the "shoulder-elbow-wrist" structural parameters are determined as: l bs l se l ew l wt Step 3: Solve for θ in the base coordinate system to find the vector of line PsPw. 1_0 θ 2_0 θ 3_0 θ 4_0 Step 4: Define the angle between the PsPePw plane and the reference plane as the redundancy angle; establish the functional relationship between θ1, θ2, θ3 and θ5, θ6, θ7 and the redundancy angle; Step 5: Solve for the initial inverse joint combination; Step 6: Solve for the optimal redundancy angle; Step 7: Substitute the optimal redundancy angle into the relational expression to finally solve for θ1, θ2, θ3 and θ5, θ6, θ7; Step 8: Use the calculated θ1~θ7 as the desired trajectory. This invention improves the control accuracy of the robotic arm and the operating efficiency of the controller.
Owner:SHENYANG INST OF AUTOMATION - CHINESE ACAD OF SCI

Intelligent household electrical appliance reservation method, storage medium and electronic device

The invention discloses a reservation method of an intelligent household electrical appliance, a storage medium and an electronic device, and relates to the technical field of intelligent home furnishing.The reservation method of the intelligent household electrical appliance comprises the steps that first voice information sent by a first intelligent household electrical appliance is received, natural language analysis is conducted on the first voice information, and intention information corresponding to the first voice information is obtained; the intention information comprises a control object, a control operation and appointment time, if the control object indicates the intelligent household electrical appliance of the target type, determining one or more second intelligent household electrical appliances of the target type corresponding to a user to which the first intelligent household electrical appliance belongs, determining a corresponding control instruction based on the control operation, and controlling the intelligent household electrical appliance of the target type based on the appointment time and the control instruction. Sending a reservation instruction to one or more second intelligent household appliances; according to the method, the control efficiency of a plurality of intelligent household appliances is improved, and meanwhile, the user experience is also improved.
Owner:HAIER YOUJIA INTELLIGENT TECH (BEIJING) CO LTD +2

A three-dimensional force sensing-based foot-type robot slip detection and balance control method and system

ActiveCN121477955Blower center of gravityincrease stability marginLegged robotControl theory
The application belongs to the technical field of robots, and discloses a three-dimensional force sensing-based detection and balance control method and system for a legged robot. The method comprises the following steps: determining the number of the leg of the multi-legged robot that slips according to a three-dimensional force signal of the multi-legged robot in contact with the ground; and adjusting the multi-legged robot in the following manner when slipping occurs: (1) adjusting the height of the center of mass of the multi-legged robot; (2) for the leg that slips, actively adjusting the joint stiffness and joint damping of the leg to relieve instantaneous impact; applying foot end acceleration and adjusting normal support force to suppress slipping; and adjusting the target foot landing point at the next time. Through the application, the balance of the robot can be quickly restored after slipping occurs, the risk of instability is reduced, and the stability of the robot in a complex environment is ensured.
Owner:HUAZHONG UNIV OF SCI & TECH

TCP congestion control method, device, equipment, medium and product

PendingCN121967326AImprove control efficiencyavoid wastingTransmissionCongestion windowBandwidth cap
The embodiment of the invention provides a TCP (Transmission Control Protocol) congestion control method, device, equipment, medium and product, and relates to the field of computer networks, the method comprises the following steps: taking a bandwidth upper limit as a core constraint benchmark, combining the core constraint benchmark with smooth RTT and effective MSS to calculate a corresponding congestion window upper limit, and accurately regulating and controlling the congestion window through layered window constraint, so that the congestion control efficiency is improved. It is ensured that a congestion window always adapts to network transmission characteristics and resource allocation requirements, congestion caused by too large windows or resource waste caused by too small windows is avoided, meanwhile, the rhythm sending rate is calculated based on the bandwidth upper limit, the rhythm sending rate of a current application is dynamically updated through double judgment of a change rate threshold value and a minimum updating interval, and the user experience is improved. The real-time adaptation of the rhythm sending rate and the bandwidth upper limit is realized, the problem of insufficient collaboration of window adjustment and rate control in the prior art is solved, network resources are fully utilized while excessive sending is avoided and the transmission stability is guaranteed, and the TCP congestion control efficiency is improved.
Owner:CHINA UNITED NETWORK COMM GRP CO LTD +2

Radar-based fresh air control method and device for air conditioner and fresh air conditioner

This invention provides a radar-based method, device, and air conditioner for controlling fresh air in an air-conditioning system. The method includes: activating the fresh air system when a radar module determines that at least one individual is present indoors; determining an acceleration change curve based on the individual's position information collected by the radar module within a preset period; determining the degree of motion of each individual based on the time-domain trend of the acceleration change curve, provided that the acceleration at each time point in the acceleration change curve for each individual is not zero; and determining a target fresh air rotation speed value based on the motion levels of all individuals, so that the air conditioner can adjust the fan speed of the fresh air system to the target fresh air rotation speed value. The radar-based method, device, and air conditioner provided by this invention eliminate the need for manual setting of the fresh air operation mode when an individual is moving, ensuring that the amount of fresh air supplied matches the amount of movement of the individual.
Owner:QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD +3

Inward-opening type hinge cabin door control device and state indication method

The invention provides a helicopter inward-opening type hinge cabin door control device and a state indication method, solves the problem of low reliability caused by multiple sensors, multiple signals and complex logic of a cabin door with a multi-position locking function at present, and is particularly suitable for a large-size inward-opening type hinge cabin door of a general helicopter. Reliable position locking and state indication of the cabin door can be realized only through monitoring of the passive locking mechanism and the micro switch of the passive locking mechanism and by adopting a system architecture of signal acquisition logic processing state indication, and an active locking mechanism and an additional position sensor do not need to be adopted, so that the cabin door control system is simple, fewer in signal, simple in logic and high in reliability. The cabin door state display information is concise, visual and comprehensive, the cabin door control efficiency and the state indication reliability are higher, and various task requirements of using the cabin door on the ground / in the air can be met.
Owner:CHINA HELICOPTER RES & DEV INST

A waterproof power adapter

This utility model discloses a waterproof power adapter. The housing has an annular top step; the top step has an annular positioning groove, and the underside of the cover has an annular positioning ring wall that can fit into the positioning groove. The housing has an upward-extending annular surrounding wall outside the positioning groove. The annular surrounding wall, the top step, and the positioning ring wall form a sealing groove for injecting sealant. The housing has a connector for a power cord; the connector extends upward to connect to the sealing groove; the power cord's connector terminal can be inserted into the connector from above. This utility model, through the nested fit of the annular positioning groove and the positioning ring wall, combined with the innovative connection design between the sealing groove and the connector, achieves significant optimization in sealing performance, cost control, and assembly efficiency.
Owner:FOSHAN SIJU ELECTRONIC TECHNOLOGY CO LTD

All-electrically driven ultrasonic vibration-infrared heating energy field assisted multi-station precision glass mold pressing equipment

The utility model discloses full-electric-drive ultrasonic vibration-infrared heating energy field assisted multi-station precision glass mold pressing equipment, which comprises a control box, a feeding assembly, a pressure forming execution unit, a discharging assembly and an electric control cabinet, and adopts an infrared radiation heating mode to carry out rapid non-isothermal heating on a glass prefabricated part. And an ultrasonic vibration element and a pressure sensing element are arranged in the lower mold base of the mold pressing station, and when the prefabricated part is heated to a softening point, the ultrasonic vibration element is started to cooperatively work with an infrared heating technology, so that the filling speed and quality of glass mold pressing forming are improved. The full-electric driving technology is used, the control precision and the die pressing forming efficiency are high, in addition, compared with a traditional glass die pressing machining mode, the infrared heating element and ultrasonic vibration cooperative work machining technology achieves precise and efficient machining of a glass prefabricated part, the problem of interference of heating and vibration in traditional die pressing is solved, and the production efficiency is improved. And the forming precision and efficiency of the product are improved.
Owner:CHANGCHUN UNIV OF TECH

Vehicle starting control method and device, vehicle and medium

PendingCN121973783AImprove driving experienceImprove real-time controlRoad surfaceSelf adaptive
The invention relates to the technical field of vehicle control, and discloses a vehicle starting control method and device, a vehicle and a medium, and the method comprises the following steps: in response to starting operation of the vehicle in an automatic parking state, adjusting parking release control parameters according to current road surface information and vehicle parameters; and releasing the automatic parking state according to the adjusted parking release control parameter. The parking release control parameters are dynamically adjusted according to real-time road surface information and vehicle parameters through a dynamic and self-adaptive parameter adjusting mechanism, the limitation of traditional fixed calibration is eliminated, different road conditions and vehicle states can be adapted, the vehicle starting quality in the automatic parking state is remarkably improved, and the vehicle starting speed is increased. And fixed parameters under the automatic parking function can be continuously optimized, so that the method adapts to individual manufacturing differences of different vehicles, starting abnormities such as slope sliding, dragging and vehicle channeling of the vehicles can be effectively avoided, the safety and smoothness of vehicle starting are improved, and meanwhile the user driving experience and the vehicle intelligent control level are greatly improved.
Owner:CHONGQING CHANGAN AUTOMOBILE CO LTD

Biochemical analyzer reaction disc intelligent temperature control system and control method

PendingCN121979332AHigh precisionstable temperature environmentTemperatue controlTemperature controlLoop control
The invention relates to an intelligent temperature control system and control method for a reaction disc of a biochemical analyzer, and the system comprises a temperature sensing unit which collects the real-time temperature distribution data of multiple regions of the reaction disc, and provides a precise data source for temperature control; the environment temperature sensor is used for monitoring the change of the environment temperature in the instrument, monitoring the change of the environment temperature in real time and providing environment parameters for anti-interference compensation; the thermal disturbance detection module is used for establishing a temperature disturbance model for reagent addition, providing a disturbance predicted value and improving the anti-interference capability; the adjusting control module is used for realizing double-closed-loop control logic, calculating a basic control quantity and a compensation control quantity and generating a total control instruction; the refrigerating and heating module responds to the control instruction and adjusts the temperature of the reaction disc through refrigerating / heating action; and the main control module is responsible for data overall planning, parameter management and control instruction issuing. The device has the beneficial effects that the temperature precision of the reaction disc is improved; the response speed is greatly improved; the anti-interference capability is obviously enhanced; and the temperature uniformity is obviously improved.
Owner:URIT MEDICAL ELECTRONICS CO LTD

Flow control method, device, storage medium and program product

Embodiments of the present application provide a flow control method, device, storage medium and program product. In the embodiments of the present application, in a storage space recycling offloading scenario, the target partition resource is accessed by any one of a first thread and a second thread, the target write speed threshold of the write operation and the target recycling speed threshold of the storage space recycling operation are calculated, the first thread can control the flow of the foreground write operation according to the target write speed threshold, the second thread can control the flow of the storage space recycling operation according to the target recycling speed threshold, and the flow control of the foreground write operation and the storage space recycling operation is realized in the storage space recycling offloading scenario. On the other hand, because only one thread accesses the target partition resource and data such as the target write speed threshold and the target recycling speed threshold, there is no need to increase additional mutual exclusion logic, the code complexity of the flow control can be reduced, and the flow control efficiency can be improved.
Owner:ALIBABA CLOUD COMPUTING CO LTD

Underwater AUV service caching and switch state switching method based on D3QN

The invention discloses an underwater AUV (Autonomous Underwater Vehicle) service caching and switch state switching method based on a D3QN (Digital 3QN). The method comprises the following steps: firstly, for an ocean network formed by a water surface buoy node and an AUV, establishing an AUV service cache state and dormancy / activation state coupling control model; then, through consistent binding of a target switch state and a service cache write-in action, dormancy isolation constraint and a dormancy cache freezing rule, a feasible action mask meeting cache capacity constraint and anti-repeated write-in constraint is constructed; the method comprises the following steps of: firstly, constructing a comprehensive cost function according to cache update time overhead, write-in energy consumption, switch state switching cost and invalid activation penalty, and finally, solving in a legal action subspace by using D3QN, and outputting an AUV service cache and switch state switching control strategy. According to the invention, AUV service cache updating and switch state switching under the dynamic load can be effectively realized, and underwater network energy consumption and service cache updating delay are reduced.
Owner:NANJING UNIV

Reinforcement learning intelligent traffic signal control method and system based on state-driven retrieval enhancement

The invention discloses a reinforcement learning intelligent traffic signal control method and system based on state-driven retrieval enhancement. The method comprises the steps of collecting real-time traffic flow state information of a traffic environment and constructing a global traffic state vector, retrieving a knowledge base to obtain related knowledge fragments and performing weighted aggregation to obtain a comprehensive knowledge representation vector, and constructing a fusion decision model fusing retrieval enhancement and a Markov decision mechanism, training convergence of the strategy network is completed after the enhanced state vector is generated, traffic signal control is achieved based on the converged strategy network, the generalization adaptation capacity, the anti-interference capacity and the operation stability of the signal control strategy to various traffic scenes are improved, random fluctuation of traffic flow and sudden traffic conditions can be effectively coped with, and the traffic signal control method is suitable for being popularized and applied. Through knowledge retrieval and prior knowledge fusion, traceability and interpretability of a control decision are realized, the efficiency of traffic signal control is effectively improved, the occurrence rate of intersection traffic delay and congestion is reduced, and reliable support is provided for intelligent collaborative management and control of a road network.
Owner:CENT SOUTH UNIV

Vehicle motor temperature control method and device and vehicle motor temperature prediction method

This application relates to a vehicle motor temperature control method, apparatus, and vehicle motor temperature prediction method. The method includes: based on target runtime timing data of the vehicle motor at a target time and multiple coolant flow rate acquisition data, iteratively optimizing the output data of a motor temperature prediction model by minimizing the output data to obtain target flow rate control data for controlling the coolant flow rate of the vehicle motor; the motor temperature prediction model is used to divide the input runtime timing data and coolant flow rate timing data into multiple runtime subsequences and multiple coolant flow rate subsequences, and to perform graph convolution feature extraction and temperature prediction processing using partial data from each subsequence; in each iterative optimization process, the coolant flow rate data included in the partial coolant flow rate subsequence of the coolant flow rate timing data input to the motor temperature prediction model is the coolant flow rate candidate data for the current iterative optimization process. This method can improve the efficiency of vehicle motor temperature control.
Owner:CHONGQING JINKANG POWER NEW ENERGY CO LTD

A liquid tension control method for improving wafer drying efficiency

This invention relates to a liquid tension control method for improving wafer drying efficiency, comprising: First, placing a wafer cassette connected to a oscillating mechanism into a drying tank, loading wafers into the cassette, and ensuring the drying tank and its dome are sealed together, with a small amount of gas evacuated; Second, injecting room-temperature nitrogen gas through the dome and injecting ultrapure water into the drying tank to wet the wafer surface; Third, after the wafer surface is wetted, performing the following operations: S1: Injecting a mixture of isopropanol and heated nitrogen gas into the drying tank using a dedicated integrated module, while simultaneously discharging ultrapure water at a controlled rate from the bottom of the drying tank; S2: During the ultrapure water discharge, operating the oscillating mechanism to carry the wafer in a planetary oscillation, accelerating the removal of water molecules from the wafer; Fourth, repeating the wafer drying process. This invention utilizes planetary arc-shaped oscillation drying technology to accelerate the removal of residual moisture from the wafer surface, achieving rapid wafer drying through effective control of liquid tension.
Owner:PNC PROCESS SYSTEMS CO LTD +1

A telescope and control system therefor

A control system for controlling a telescope body includes an input module, a main control module, a drive module, and a storage module connected in pairs. The input modules send encoded information of the command corresponding to a preset operation to the main control module after the user performs a preset operation. Each input module includes a mechanical module comprising at least one button, at least one scroll wheel, and a first processor. The first processor is connected to the button, the scroll wheel, and the main control module. When the button and scroll wheel perform a preset mechanical operation, the first processor matches the command corresponding to that operation and transmits the encoded information of the command to the main control module. Compared to existing technologies, the control system of this invention allows for command input via both buttons and scroll wheels, improving control efficiency.
Owner:GUANGZHOU CHENGZHI INTELLIGENT MACHINE TECH CO LTD

Method and system for joint control of multiple servo motors

The application discloses a joint control method and system of multiple servo motors, which comprises the following steps: collecting real-time working parameters, load feedback data and target feature information of multiple servo motors, and performing space-time alignment and noise filtering processing, simultaneously extracting dynamic response parameters corresponding to each servo motor, and determining the load coupling coefficients between the servo motors; constructing a collaborative task matrix and generating an initial collaborative control strategy; determining different working process stages corresponding to the multiple servo motors, calculating the corresponding collaborative priority weights, and constructing a phased collaborative control model; obtaining corresponding working state parameters and the current state of the target, dynamically adjusting the collaborative coefficients corresponding to each servo motor, substituting into the phased collaborative control model to generate real-time control instructions corresponding to each servo motor, and performing joint control iterative optimization to generate a closed-loop adaptive joint control mechanism. The application can improve the joint control efficiency of multiple servo motors.
Owner:GUANGDONG YILAISI MOTOR CO LTD

Distributed offshore wind turbine control method based on consensus algorithm

The application provides a distributed offshore wind turbine control method based on a consistency algorithm, comprising: taking the distributed offshore wind turbine as a distributed intelligent agent, and obtaining total active power shortage of a plurality of intelligent agents; establishing an initial first adjacency matrix according to a communication relationship between adjacent intelligent agents, and adjusting the first adjacency matrix to obtain a second adjacency matrix; modifying an initial first Laplacian matrix according to the second adjacency matrix to obtain a second Laplacian matrix; establishing a target function taking maximization of a wind energy utilization coefficient of each distributed offshore wind turbine as an objective, and obtaining an output power increment allocated to each distributed offshore wind turbine according to the second Laplacian matrix, so that the distributed offshore wind turbine outputs corresponding output power; and the application can improve power quality and improve power control accuracy of the distributed offshore wind turbine.
Owner:GUANGDONG POWER GRID CO LTD +1

Lamp-driver integrated packaging LED process detection device

The utility model, which relates to the technical field of LED detection, discloses a lamp-drive integrated packaging LED processing detection apparatus comprising a housing, a power supply, a processor and a test tool. The processor is arranged in the shell, and the test tool is arranged at the top of the shell; the power supply is arranged in the shell and is used for supplying power to the test tool and the processor; the processor is internally provided with a register, the register can control the corresponding testing tool according to the control requirement, the electrical connection function of the lamp bead and the reliability problem (such as dark crack and crush) of an integrated circuit can be detected, the pain point that the industry depends on high-error light splitting equipment or terminal assembly detection is solved, the quality control efficiency of the manufacturing process is remarkably improved, and the production cost is reduced. Two modes of single-point control and breakpoint resume are supported, different test scenes are flexibly coped with, and accurate positioning of faults in a complex circuit is ensured; testing of series connection, parallel connection and different pin positions is supported, and diversified production requirements are met.
Owner:SHANXI HIGH TECH HUAXING ELECTRONIC TECH CO LTD

Emergency control method for safety door

The application provides an emergency control method for a safety door, and relates to the technical field of rail transit. The method comprises the following steps: S1: judging whether a driving machine is normally working, and if yes, no operation is performed; otherwise, S2 is performed; S2: marking a lifting control part at an abnormal driving machine as a first control part, and the other end as a second control part; a controller of the second control part acquires absolute value encoder readings in real time; S3: judging whether the absolute value encoder reading change of the second control part is greater than a predetermined threshold; if yes, S4 is performed; otherwise, no operation is performed; and S4: the driving machine of the second control part works to drive a sliding block to move a predetermined distance. The application has high feasibility. After one side of the motor fails, when a person artificially lifts and lowers the pull rope on the side of the failure, the state of the pull rope is acquired, the motor on the other side is correspondingly rotated, the two ends of the safety door pull rope are synchronously lifted and lowered, only one person is needed to easily perform emergency lifting and lowering control on the failed safety door, and the control efficiency is high.
Owner:高合安智能科技(厦门)有限公司 +1

A local-global decoupling pushing and straightening method for an ultra-long working face hydraulic support group

This disclosure relates to a method for decoupling and straightening the hydraulic support group in an ultra-long working face, specifically in the field of coal mining technology. The method includes: collecting the displacement data of multiple hydraulic supports corresponding to the working face to obtain a displacement sequence; decomposing the displacement sequence into global low-frequency components and local high-frequency components; calculating a local consistency deviation index based on the local high-frequency components, and calculating a global trajectory deviation index based on the global low-frequency components and the design displacement benchmark; determining local and global correction weights based on the local consistency deviation index and the global trajectory deviation index; generating a local displacement correction amount based on the local high-frequency components, generating a global displacement correction amount, and merging the local and global displacement correction amounts into a target displacement correction amount; and controlling each hydraulic support to perform a pushing action based on the target displacement correction amount to maintain the straightness of the working face. This disclosure improves the stability and control efficiency of maintaining the straightness of ultra-long working faces.
Owner:CCTEG COAL MINING RES INST

Control method, system, device and storage medium of water heater

The application discloses a kind of control method, system, equipment and storage medium of water heater, control method includes: the demand load value of water heater is calculated;The preset fan speed value of water heater corresponding to demand load is obtained;According to the comparison result of preset fan speed value and anti-wind determination speed value and anti-clogging determination speed value, wind resistance control or anti-clogging control is carried out to water heater.The preset fan speed value of water heater corresponding to the demand load value of water heater is obtained, according to the comparison result of preset fan speed value and anti-wind determination speed value and anti-clogging determination speed value, wind resistance control or anti-clogging control is carried out to water heater, wind resistance control can be carried out quickly to fan, the judgment to water heater clogging condition is also realized, cost is reduced, and control efficiency is improved.
Owner:NINGBO FOTILE KITCHEN WARE CO LTD

Pest killing method and system based on terahertz waves and microwave pulses

The embodiment of the invention provides a pest killing method and system based on terahertz waves and microwave pulses, and the method comprises the steps: transmitting a linear frequency modulation continuous wave signal of which the center frequency is a first frequency to a to-be-detected tree through a terahertz receiving and transmitting array antenna, and receiving a reflection echo of the linear frequency modulation continuous wave signal, identifying a potential pest area by using signal attenuation and frequency spectrum features; in response to the identified pest area, switching to a second frequency with a higher frequency, transmitting a terahertz continuous wave signal and acquiring a reflected signal of the terahertz continuous wave signal, and reconstructing a three-dimensional cross-sectional image of the pest area based on the signal so as to determine the accurate position, diameter and length of the pest; on the basis, according to a preset lethal electric field intensity threshold value and the pest size, the peak power of needed microwave pulses is calculated, non-thermal effect microwave pulses are emitted to the positions where the pests are located through a microwave antenna array at the target frequency and the target pulse width, selective killing is achieved, and the pulse width is smaller than pest thermal relaxation time; and thermal damage to the trees is avoided.
Owner:NANJING SHANGZHI ELECTRONIC TECH CO LTD

Multi-objective optimization design method for grey-green coupling facility

The invention discloses a multi-objective optimization design method for a grey-green coupling facility. The method comprises the following steps: S100, collecting and cleaning multi-source data, performing coordinate unification, establishing a digital base data set, and setting regional parameter correction and historical disaster fingerprint calibration; s200, quantifying the regulation, storage and drainage operation rule into an optimizable dynamic variable; s300, establishing a parameterization mechanism model of the grey green facility and a connecting component, coupling life period evolution of degradation-operation and maintenance recovery, and outputting hydraulic power and risk indexes; s400, setting a Level-0 hard constraint and a robust constraint by taking the minimum flood response speed and the minimum full life cycle net cost as a core target; s500, carrying out iteration by adopting NSGA-II / III (Non-dominated Sorting Genetic Algorithm-II / III) to obtain a Pareto non-dominated feasible solution set; s600, calculating a comprehensive risk index based on the risk result and generating a partition and differentiation layout template; and S700, screening a unique recommendation scheme according to the grading evaluation system in combination with AHP-entropy weight coupling weight and landing correction, and outputting engineering accessories such as a parameter list and an operation and maintenance plan.
Owner:BEIJING UNIV OF CIVIL ENG & ARCHITECTURE