75results about How to "Stable operation" patented technology

The invention discloses a smart home energy management optimization method in an Internet of Things environment. According to the method, the Internet of Things technology is utilized, intelligent identification and classified management are carried out on equipment, multiple energy management strategies are preset, and a user can conveniently and autonomously adjust; energy data is monitored in real time through a sensor and an intelligent electric meter, an energy consumption rule is mined by using a big data analysis technology, and a demand trend is predicted; constructing an intelligent energy dispatching center, and formulating a dynamic energy distribution scheme by using an optimization algorithm; a mobile phone application and an intelligent control panel are developed, and a user is supported to check data, control equipment and carry out personalized customization; and meanwhile, equipment firmware upgrading and remote management are realized. According to the invention, energy consumption can be reduced, cost can be controlled, equipment collaboration and energy distribution efficiency can be improved, user experience can be enhanced, system maintenance and upgrading are facilitated, and intelligent household energy management is more efficient, intelligent and flexible so as to adapt to diversified household requirements.

The invention relates to the related field of photovoltaic construction, in particular to a photovoltaic construction management system, which comprehensively analyzes video data and environmental sensor data, improves the accuracy and reliability of the monitoring effect, and can effectively reduce the blind area and false alarm rate of a single data source through the fusion of multi-modal data. According to the invention, a genetic algorithm and a decision tree algorithm are integrated, so that the system has strong learning ability, and the system can be continuously self-optimized according to historical data and operation logic to gradually adapt to different construction environments and working conditions; through regular updating and model training, the system can continuously improve the monitoring precision and the safety management level, and it is ensured that an efficient and stable operation state is always kept in long-term use; an analysis result is displayed through a visual platform, accurate defect positions and severity degree marks are provided, a detailed detection report can be automatically generated, long-term monitoring and data comparison are supported, and powerful technical support is provided for construction quality guarantee.

The invention discloses a fault online monitoring and early warning method for an energy storage system. The monitoring method comprises the following steps: acquiring real-time state parameters of each battery in a plurality of energy storage battery assemblies in a current detection period and a previous detection period; calculating the internal resistance change rate of the battery based on the real-time state parameters of the battery; calculating a fault risk index of the battery by combining the real-time state parameter and the aging coefficient of the battery based on the internal resistance change rate; and judging whether the fault risk index of the battery is greater than or equal to a fault risk threshold, if so, controlling the battery to stop running, and sending fault warning information to a control end of the energy storage system, and if not, controlling the battery to run normally. Through the multi-dimensional state parameters of two continuous detection periods, the fault risk index of each battery is comprehensively calculated to judge the operation state of a single battery, the problems that an existing scheme is single in detection parameter, lacks dynamic monitoring capability and does not consider battery aging factors are solved, and comprehensive, dynamic and accurate fault monitoring and early warning are achieved.

The invention discloses a strong-drive type service lift stable in operation, and relates to the technical field of lifts. A strong-drive type dumb waiter stable in operation comprises a support, two guide rails which are longitudinally symmetrical are fixedly connected to the two transverse sides in the support, sliding blocks are slidably connected into the guide rails, rolling wheels which are distributed at equal intervals are rotatably connected to the sides, close to the guide rails, of the sliding blocks, a lift car is connected between the sliding blocks, and two mounting shafts are fixedly connected to the top end in the support. The motor winds or loosens the steel cable to drive the lift car to vertically move up and down in the support, the sliding block and the roller can also move up and down in the guide rail, and when the sliding block slides up and down, the roller can be kept in the state of being attached to the inner side of the guide rail, so that the state of the guide rail is monitored in real time; and solidified lubricating oil or foreign matter and other impurities can extrude the roller to move, then the cleaning plate is controlled to slide rightwards to be attached to the guide rail, impurities on the guide rail are scraped away, and it is guaranteed that the elevator is in a stable running state all the time.

The invention relates to the technical field of cable production, and discloses a cable stranding machine which comprises a base plate, the base plate is provided with a motor, a lead frame, a branching wheel, a lead wheel and a merging die, an output shaft of the motor is fixedly provided with a rotating shaft, and the rotating shaft penetrates through the lead frame, the branching wheel and the lead wheel respectively. A cable is arranged on the wire guiding frame, the cable passes through the wire dividing wheel and the wire guiding wheel and is twisted into a cable in a merging mold, a through hole is formed in the wire dividing wheel, a first connecting frame and a second connecting frame are arranged in the through hole, and a fixing wheel is arranged below the first connecting frame. The fixed wheel rotates reversely instantly to trigger the reverse limiting mechanism, and the stabilizing frame in the mechanism moves downwards to form a U shape with the two movable wheels, so that the cable can be prevented from splashing out of the branching wheel, the cable is prevented from winding a machine due to huge bounce after being broken, and workers are prevented from being injured.

The invention relates to the technical field of water turbine aeration, in particular to a water turbine self-adaptive aeration device and method and a water turbine. The water turbine self-adaptive aeration device comprises a shell, a controller, a data acquisition device, a water inlet section, a gas inlet section, a gas-liquid mixing chamber and a spraying section, one end of the shell is embedded into the water turbine pressure pipeline; the data acquisition device is arranged in the water turbine pressure pipeline and is in communication connection with the controller; an air mixing valve is arranged on the air inlet section, a water inlet valve is arranged on the water inlet section, the water inlet valve and the air mixing valve are both electrically connected with the controller, the air inlet section and the water inlet section are both communicated to the air-liquid mixing chamber, the spraying section comprises an angle adjusting part and a spraying head, the angle adjusting part is communicated with the air-liquid mixing chamber, the angle adjusting part is communicated with the spraying head, and the angle adjusting part is electrically connected with the controller. The amount and the position of air injected into water flow can be accurately controlled, a stable and uniform air entrainment effect is formed, and cavitation damage of water flow to parts such as water turbine blades and the like is reduced.

The invention relates to a flexible vibration self-adaption wind turbine blade which comprises a blade body, the rear edge of the blade body is flexibly connected with a flap through an inflatable expansion body, and inflatable cavities are formed in the positions, on the two sides of a chord line, of the expansion body. The chambers located on the two sides of the chord line swing along with the flap to change the compression degree so as to adjust the counter-acting force of the expansion body on the flap in a self-adaptive mode, and the flap angle between the blade body and the flap tends to be stable. The device is simple and compact in structure, light in self weight, high in strength, foldable and rapid to mount; when the blade works and the wind power is large, the flexible structure is affected by the wind power and can be bent upwards, and the stability of the whole blade is guaranteed. When the wind power is reduced, the flexible structure is affected by the pressure difference of the two air chambers and can be bent downwards, the operation efficiency of the blade at the low wind speed can be improved, and the effects of increasing efficiency and expanding stability are achieved.

The invention relates to the technical field of power systems, and discloses a half-wavelength controllable tuning method under the background of a dual-carbon and novel power system. Comprising the following steps: system evaluation and demand analysis: collecting power grid information and fusing dual carbon and novel power system demands to determine a tuning target and key parameters; designing a half-wavelength tuning strategy, determining tuning parameters by using a particle swarm optimization algorithm, formulating the strategy, and performing simulation optimization; selecting and configuring half-wavelength controllable equipment, evaluating performance indexes, selecting equipment, and reasonably configuring, installing and debugging; system integration and communication network construction: integrating equipment and constructing a reliable communication network to ensure information transmission; tuning implementation and monitoring are carried out, a control system is developed to send instructions, data are collected and analyzed to evaluate performance, and optimization is fed back according to results. According to the invention, the stability and adaptability of the power grid are enhanced, the intelligent development is promoted, the resource configuration and structure are optimized, the safety and sustainable development are guaranteed, and the challenges of dual-carbon and novel power systems can be effectively handled.

The invention relates to the technical field of nuclear power feed pumps, and discloses a variable-frequency and variable-speed starting feed pump for a nuclear power plant, which comprises a pump body, a driving shaft arranged in the pump body, a variable-speed motor arranged at one end of the driving shaft, an auxiliary water delivery assembly arranged on one side of the pump body, and a multi-stage impeller mechanism and an adjusting assembly arranged in the pump body, a main water inlet and a main water outlet are formed in the top of the pump body, water flow enters the front cavity from the main water inlet through the arranged auxiliary water conveying assembly and the multi-stage impeller mechanism, the speed adjusting motor runs at a low speed and drives the front impeller body and the rear impellers to rotate in the pump body through the driving shaft, and when the front impeller body rotates, the rear impellers rotate in the pump body. Water flow can be divided into two parts to be conveyed in two directions through the inner row of blades and the outer row of blades, so that the water flow and pressure are more stable, impact on key equipment is reduced, different working condition requirements are better met, and the effect of improving the stability and reliability of a system is achieved.

This invention discloses a telescopic belt conveyor, belonging to the field of belt conveyor technology. It aims to solve the technical problem of the limited conveying form of traditional equipment in complex and changing working conditions. The invention includes a conveyor frame with a telescopic structure, a drive cabinet arranged on one side of the conveyor frame, and a roller mechanism arranged on the conveyor frame. This invention utilizes the spatial displacement of several roller group modules and the arc shape formed by the coordinated bending of these modules to guide materials towards the center through the centripetal guiding force generated by the curved surface, effectively solving the problems of spillage and uneven loading in bulk material conveying. By controlling the radial expansion of the combined components between the cylindrical components to form a cam structure, and coordinating with the alternating convergence of adjacent modules, the conveyor belt is forced to form a wave-shaped cross-section. The difference in the height of the crests and troughs simultaneously accommodates and limits bulk materials and forms multi-point anti-rolling contact for large materials, significantly improving conveying stability.

The utility model provides a waste calcium carbide remelting and upgrading conveying device, which belongs to the technical field of conveying devices, and comprises a crushing chamber, a rotator arranged in the crushing chamber, two first rotating shafts rotationally connected in the rotator, two crushers fixedly connected to the lower ends of the two first rotating shafts, and two second rotating shafts rotationally connected in the two crushers. The two first gears are fixedly connected to the circumferential surfaces of the two first rotating shafts, the gear ring is fixedly connected to the interior of the crushing chamber, and the first gears are meshed with the gear ring. Meanwhile, powder calcium carbide directly reaches the furnace bottom through the inside of the electrode and does not make contact with a furnace charge layer, current shunting is eradicated, waste products are directly added to the furnace bottom after being powdered and can be rapidly reacted and fused with semi-finished product calcium carbide, and electric energy consumption is greatly reduced.

The utility model provides a kind of motor rotor of permanent magnet auxiliary reluctance synchronization belongs to motor rotor technical field, including rotor core, the shaft hole for connecting rotating shaft is opened in rotor core, multiple permanent magnets are equipped on rotor core, multiple magnetic barriers are equipped on rotor core, both ends of rotor core are equipped with end plate, multiple permanent magnets and multiple magnetic barriers are equipped with magnetic separation strip between, multiple damping grooves are opened in rotor core outer wall, multiple damping grooves are equipped with damping block, multiple end plates are equipped with balance block, multiple damping blocks are equipped with heat dissipation plate between, both sides of rotor core are equipped with magnetic conducting ring, both ends of rotor core and end plate outer wall junction are equipped with sealing pad.The device is by setting magnetic separation strip between permanent magnet and magnetic barrier, so that user can prevent the magnetic flux leakage between permanent magnet and magnetic barrier;After motor operation, the distribution of internal magnetic field of motor can be optimized by the effect of magnetic separation strip, so that user can obtain more stable motor operating condition.

The utility model is applicable to the technical field of aluminizing rollers, and provides an aluminizing roller of film vacuum aluminizing equipment, which comprises an inner roller and an outer roller, the outer roller is sleeved on the outer side of the inner roller, and a cavity for water path circulation is arranged between the inner roller and the outer roller; the heat dissipation piece is arranged in the cavity; the heat dissipation piece comprises a cold water pipe tightly attached to the outer side of the inner roller, and a water inlet end and a water outlet end which are arranged at the two side ends of the outer roller. The two air coolers are arranged on the inner side of the outer roller, and the two air coolers are arranged at the intersection where the outer roller is far away from each other; a comprehensive heat dissipation system is formed by combining a water cooling heat dissipation mode and an air cooling heat dissipation mode, the cold water pipe rapidly takes away heat of the inner roller through circulating flowing cold water, and the air cooler further strengthens the heat dissipation effect through the air flow channel. Through the combination mode, the equipment can keep a stable operation state in a high-temperature working environment, and the temperature of the inner roller is ensured to be effectively controlled, so that the working efficiency and the aluminum plating quality of the equipment are improved.

This invention discloses a deep learning-based method for VOCs pollution feature analysis and source tracing. The method includes acquiring online monitoring time-series data of VOCs and synchronous meteorological parameters of the monitoring area, constructing a multidimensional input tensor after preprocessing, building a deep neural network model containing a spatiotemporal feature extraction module and a source apportionment regression module, extracting nonlinear chemical coupling features and temporal evolution features between VOCs components using a one-dimensional convolutional neural network and a bidirectional long short-term memory network, and weighting and fusing them using meteorological parameters, and finally decoding and outputting the source component spectrum and temporal contribution rate that conform to physical constraints through the source apportionment regression module to generate a pollution feature map. This invention effectively solves the problem that traditional receptor models struggle to handle nonlinear chemical transformations and complex meteorological couplings, improves the accuracy and physical interpretability of VOCs pollution source tracing, and has online update capabilities to adapt to environmental changes.

The utility model relates to the technical field of crushing pumps, in particular to a bidirectional pressurizing crushing sewage pump for an intelligent dog toilet. The sewage pump comprises a main shell, a water outlet pipe and a main shaft assembly. The main shaft assembly comprises a crushing impeller; a first mounting hole is formed in the center of the crushing impeller, and six fan blades including a pair of long fan blades, a pair of short fan blades and a pair of inclined fan blades are arranged on the outer side of the crushing impeller in an annular array mode with the first mounting hole as the center. By arranging three pairs of crushing parts with different crushing areas, the crushing surface of the crushing impeller completely covers the cross section of the inner cavity of the main shell. And it is ensured that a mixture passing through the crushing impeller can be fully crushed, and the discharging effect of the sewage pump is improved.

This utility model discloses a tank-type stacked pressure-free variable frequency secondary water supply device, relating to the technical field of water supply equipment. It includes a flow stabilizing tank, a pump assembly, a pressure stabilizing tank, and a detection assembly. The flow stabilizing tank is connected to the equipment's inlet pipe. The pump assembly is connected to the outlet pipe of the flow stabilizing tank and includes multiple pump units, each independently frequency-controlled, pumping water to the outlet pipe. The pressure stabilizing tank is connected to the outlet pipe and used to balance water pressure fluctuations. The pressure stabilizing tank includes a shell and multiple air chambers, each with a different internal pressure. The detection assembly, located on the outlet pipe, includes a pressure sensor and a pressure switch. The pressure sensor detects water pressure changes on the outlet pipe, and the pressure switch controls the start and stop of the pump units. The technical solution provided by this utility model aims to solve the problem of insufficient capacity of traditional large-capacity single-chamber tanks to cope with high-frequency pressure fluctuations, ensuring a stable water supply.

The utility model discloses a wind turbine generator main shaft bearing performance testing device, comprising a test bench, a fixing mechanism arranged above the test bench, and a detection mechanism arranged above the test bench, and through the fixing mechanism arranged on the test bench, a main shaft bearing is ensured to maintain a stable operation state in a test process. The vibration resistance and the stability of the whole fixing mechanism are enhanced, the influence of external vibration interference on a test result is effectively reduced, it is ensured that the spindle bearing does not displace or loosen in the test process, and flexible adjustment can be conducted according to the size and the shape of the spindle bearing; key performance parameters such as vibration, temperature and humidity, rotating speed and the like of the main shaft bearing in the testing process can be monitored in real time, the running state of the main shaft bearing is accurately captured, comprehensive and accurate data support is provided for performance evaluation, and appearance changes of the main shaft bearing in the testing process can be shot in real time.

The utility model discloses a conveying belt deviation rectifying device and a belt conveyor. The conveying belt deviation rectifying device comprises two catch wheel sets arranged on the two sides of a conveying belt respectively, a deviation rectifying assembly arranged on one side of the conveying belt and an adjusting roller arranged on a conveying frame. The deviation rectifying assembly is connected with the catch wheel set and the adjusting roller, the catch wheel set abuts against the conveying belt to be used for detecting the deflection condition of the conveying belt, and the deviation rectifying assembly adjusts the angle of the adjusting roller to offset deflection of the conveying belt when the conveying belt deflects. The deflection condition of the conveying belt is detected through the catch wheel set, the posture of the deviation rectifying assembly is adjusted to offset the deflection of the conveying belt when the conveying belt deflects, and therefore it is guaranteed that the conveying belt does not collide with the machine frame, conveying equipment is kept in a stable running state, and the tobacco material conveying efficiency is guaranteed.

The application provides a coal-based intelligent decision generation method and device, equipment and storage medium, and belongs to the technical field of intelligent decision, which comprises the following steps: coal price prediction is performed based on coal quality index data and standardized coal market data to obtain coal price prediction trend data; the coal quality index data is a comprehensive index representing the physical and chemical properties and industrial applicability of coal; knowledge vectorization processing is performed on standardized coal information text data to obtain a plurality of knowledge vectors; similarity calculation is performed based on a target retrieval vector and each knowledge vector to screen a knowledge vector corresponding to the maximum similarity; and a coal decision report is generated based on the knowledge vector corresponding to the maximum similarity and the coal price prediction trend data. The coal-based intelligent decision generation method and device, equipment and storage medium provided by the application can improve the accuracy and reliability of the generated coal-based intelligent decision.

This utility model discloses a high-speed real-time target recognition and tracking device based on multimodal sensor fusion, relating to the field of intelligent sensing and target tracking technology. It addresses the problems of unreasonable sensor layout, low data fusion efficiency, and difficulty in adapting to complex environments found in existing similar devices. The high-speed real-time target recognition and tracking device based on multimodal sensor fusion includes a housing, a central processing module, a lidar component, a millimeter-wave radar component, a binocular vision component, an ultrasonic sensor group, a power supply module, and a communication module. The multimodal sensor fusion architecture and innovative component structure of this utility model, through optimized sensor layout and data fusion methods, effectively solve the shortcomings of existing devices in target recognition and tracking, achieving high-speed, real-time, accurate, and stable target recognition and tracking.

This invention discloses a control system and method for the handover of unmanned delivery vehicles and smart vending machines, involving the intersection of intelligent logistics last-mile delivery, unmanned autonomous driving, and digital twin technology. By constructing a high-precision digital twin of the unmanned delivery vehicle, smart vending machine, delivered goods, and handover environment, this invention achieves real-time data interaction and 1:1 state mapping between the physical scene and the virtual twin scene. This technology enables precise monitoring and simulation of every detail in the handover process, thereby significantly improving the efficiency and accuracy of the handover. Through real-time simulation and anomaly classification identification, the system can detect potential problems in advance and take corresponding measures, avoiding errors and delays that may occur in traditional handover methods and ensuring the smooth progress of the handover process.

The utility model relates to a remote wireless communication system for an onshore distributed wind farm. The method is suitable for the field of land distributed wind power generation. The technical problem to be solved by the application is to provide a remote wireless communication system for an onshore distributed wind power plant. According to the technical scheme, the remote wireless communication system for the land distributed wind power plant comprises a wind power plant control center which is arranged in a wind power plant area and is provided with at least one Mesh device; the wind driven generator communication system is arranged in one-to-one correspondence with each wind turbine in the wind power plant and is provided with at least one Mesh device; and the Mesh equipment in the wind power plant control center and the Mesh equipment of each wind driven generator communication system in the wind power plant form a wireless Mesh network.

The utility model relates to the technical field of emergency power supplies, and provides an emergency power supply with a multi-protection structure, which comprises a protection box, an emergency power supply main body and a support moving assembly, the support moving assembly is arranged between the emergency power supply main body and the protection box, a heat dissipation assembly is arranged outside the protection box, and a damping protection assembly is arranged inside the protection box. The damping protection assembly comprises a pair of slideways, the slideways are installed at the upper end and the lower end of the inner surface of the protection box, movable frames are slidably connected to the outsides of the slideways, and limiting sleeves are arranged in the side surfaces of the protection box. According to the technical scheme, the problems that in the prior art, due to the fact that some existing emergency power supplies in electric power engineering lack enough protection mechanisms, large impact force can directly cause damage or falling off of some electric devices in the emergency power supply box, the emergency power supplies cannot continue to supply power, the protection effect is poor, and the service life of the emergency power supplies is influenced are solved. And the service life of the emergency power supply is shortened.

An electronic weighing device disclosed by the present invention comprises a belt conveyor, a speed sensor, a weighing sensor and a DCS system, the belt conveyor comprises a support member, a driving member and a conveying member, the support member is used for being supported on the ground, the driving member is connected to the support, and a conveying belt is movably connected to the support under the driving of the driving member; the speed sensor is connected to the support part and used for monitoring the conveying speed of the conveying part. The weighing sensor is connected to the support and used for sensing the instantaneous weight of materials passing through the weighing sensor. The DCS system is in communication connection with the speed sensor and the weighing sensor, and the weight of the material in one period is calculated according to the formula: weight = weight instantaneous value * period; the electronic weighing device sends in-situ measurement signals to the DCS system, data acquisition and operation are carried out in the DCS system, meanwhile, all-around data acquisition is carried out on the whole measurement and control process, and the intelligent degree is high.

The invention relates to the technical field of ore body detection, and discloses an information acquisition device for ore body three-dimensional modeling, which comprises a supporting column, a mounting seat is fixedly connected to the top of the surface of the supporting column, fixing mechanisms are arranged on both sides of the top of the mounting seat, an acquisition mechanism is arranged on the surface of the supporting column, and a supporting mechanism is arranged at the bottom of the supporting column. The information acquisition device for ore body three-dimensional modeling can obtain physical and mechanical parameters of rock, the parameters have very important guiding significance for subsequent mining design work, and the parameters can help engineers to reasonably plan mining schemes, determine mining sequences, mining methods, model selection of mining equipment and other key links, and improve the mining efficiency. Therefore, comprehensive and efficient collection of the internal information of the ore body is realized, the overall efficiency and precision level of ore body information collection work are greatly improved, and powerful data support and technical guarantee are provided for scientific development and utilization of mineral resources.

The invention discloses a method for suppressing rotation speed pulsation of a permanent magnet synchronous motor caused by a current measurement error. Acquiring state data of the permanent magnet synchronous motor; according to the acquired state data, based on a given signal and an actual three-phase current signal of the permanent magnet synchronous motor, determining a PWM wave signal for controlling the operation of the permanent magnet synchronous motor; according to the determined PWM wave signal and the constructed permanent magnet synchronous motor mathematical model; then, by optimizing a control strategy, such as a vector control method, the rotating speed of the motor can be adjusted more accurately, and pulsation caused by current measurement errors is reduced; and finally, by applying a filtering algorithm on a current measurement value, noise and interference from the sensor can be reduced, so that the measurement precision is improved. By adopting a filtering algorithm, adjustment and optimization can be carried out according to specific application and requirements so as to realize effective filtering and smooth processing of signals, thereby reducing noise and interference from the sensor and improving measurement precision.

The utility model discloses a frequency converter housing, which relates to the frequency converter technology field, and comprises a housing assembly composed of a rear housing, a middle housing and a front housing, and a heat radiation assembly, the inner side of the rear housing is provided with an air exhaust chamber and a circuit board installation chamber through a separator plate along the vertical direction, the inner side of the circuit board installation chamber is integrally provided with a step-shaped rectangular seat, and the inner side of the step-shaped rectangular seat is provided with an air inlet. The rear end of the step-shaped rectangular base is divided into a heat dissipation bin through the step-shaped rectangular base. According to the utility model, the rear shell with the stepped rectangular seat and the heat dissipation assembly with the sealing ring are arranged, so that the circuit board mounting bin can be separated from the heat dissipation bin and the air exhaust bin, and air only flows in the heat dissipation bin and the air exhaust bin and does not pass through the interior of the circuit board mounting bin in the heat dissipation process of the heat dissipation fan, so that the heat dissipation efficiency is improved. While heat dissipation is achieved, dust in air can be effectively prevented from making contact with the capacitor plate and the drive circuit board in the circuit board installation bin, and then the capacitor plate and the drive circuit board can be kept in a stable operation state.

The invention provides a method, device and equipment for adjusting the frequency of an air conditioner compressor and a medium, and the method comprises the steps that if the operation mode of an air conditioner is a refrigeration / heating mode, whether the environment temperature reaches the set temperature or not is regularly judged; if the temperature does not reach the set temperature, determining the operation set frequency corresponding to the current time period according to the set temperature; inputting the operation set frequency and the initial operation frequency into a preset frequency raising rate calculation formula to obtain a corresponding actual frequency raising rate; wherein the initial operation frequency is the termination frequency of the previous time period; and determining a corresponding target frequency raising rate according to a preset compressor frequency control strategy and the actual frequency raising rate, and controlling the compressor to perform frequency raising in the current time period according to the target frequency raising rate. According to the embodiment, the frequency of the compressor can be flexibly adjusted, it is ensured that the air conditioner can be kept in a stable operation state under any condition, the temperature control effect of the air conditioner is ensured, energy consumption is reduced, and the operation cost is reduced.

The present invention discloses a method for predicting task failure rate in a cloud computing environment based on a Markov chain, comprising the following steps: S1, constructing a historical task data set; S2, cleaning and preprocessing the collected historical task data set; S3, constructing an improved Markov chain model using the preprocessed historical task data set, defining different states of task execution and their state transition probabilities; S4, dynamically adjusting the parameters of the improved Markov chain model to adapt to changes in different task types and cloud computing environments; S5, generating task failure rate prediction results based on the constructed improved Markov chain model; S6, providing a real-time prediction function based on the task failure rate prediction results; S7, optimizing the task scheduling strategy based on the task failure rate prediction results. The present invention provides a solution for task scheduling and resource management in a cloud computing environment by using a Markov chain model to predict task failure rates, and combining dynamic adjustment and scheduling optimization mechanisms.

This invention provides a method and system for dynamic correction of a hoist under speed loop control, relating to the field of data processing. The method includes: acquiring the hoist car's descent information during cargo entry into the hoist car, and performing dynamic correction of the hoist's descent based on this information; collecting the real-time motor speed of the hoist during cargo transportation, and adjusting the phase current of the hoist motor based on the real-time motor speed and a preset motor speed; and acquiring the hoist car's lifting information during cargo exit from the hoist car, and performing dynamic correction of the hoist's lifting based on this information. This method has the advantage of improving the real-time performance and accuracy of hoist correction.