227results about How to "Avoid energy consumption" patented technology

The invention discloses a multi-underwater-robot cooperative control system and method based on predictive control, and relates to the technical field of cooperative control. During operation of the system, underwater environment data are collected through sensor equipment, an underwater three-dimensional dynamic environment model is generated by using a data fusion technology, and the underwater three-dimensional dynamic environment model is established based on task requirements; tasks are decomposed and distributed to all the robots, through an optimization algorithm, optimal paths of the robots and the mechanical arms are planned, the motion trails of the underwater robot mechanical arms are dynamically optimized based on model predictive control MPC, a real-time control strategy is provided for task division among the multiple mechanical arms, and the real-time control strategy of the underwater robot mechanical arms is provided based on environment modeling and the real-time state. Future motion states of the robot and the mechanical arm of the robot are predicted, an optimization objective function including task completion time, energy consumption and mechanical arm operation precision is constructed, a rolling optimization method is utilized, a control instruction is updated in real time, and real-time data sharing among multiple underwater robots is supported based on an acoustic communication technology.

The invention relates to the technical field of heat dissipation control, and discloses a heat dissipation fan multi-order filtering control method and device, and the method comprises the steps: collecting the operation parameters of a multi-fan heat dissipation system, and carrying out the construction of a dynamic state space model, and obtaining a system operation state equation and a temperature observation equation; inputting the system operation state equation and the temperature observation equation into an expectation maximization sliding window iteration extended Kalman filter to obtain a system state estimation value and a prediction error covariance matrix; performing three-stage series design on the cut-off frequency of the low-pass filter, the passband range of the band-pass filter and the coefficient of the adaptive filter to obtain a system multi-order filtering control model; based on a system multi-order filtering control model, an airflow coupling influence coefficient matrix among multiple fans is calculated, the total energy consumption, the noise level and the heat dissipation efficiency are subjected to optimization solution, a fan control optimization parameter set is obtained, the heat dissipation efficiency is guaranteed while the energy consumption is reduced, and dynamic balance among all control units is achieved.

The invention relates to the technical field of peanut oil production control, in particular to an intelligent optimization system for a peanut oil production control process, which comprises a process parameter modeling module for collecting peanut oil production parameters, performing linear combination on the peanut oil production parameters, analyzing the correlation of the peanut oil production parameters to quality indexes, and calculating the quality indexes of the peanut oil production parameters; and obtaining a process parameter mapping matrix. According to the method, through deep correlation analysis of multiple parameters in the production process, the mapping relation between the process parameters and the oil quality indexes is established, and the precision and reliability of quality control are improved. In the process control, the specific influence of each production link on the quality index is accurately reflected through standardized and linear combinatorial analysis on the parameters such as squeezing temperature, pressure, time, stirring speed and the like. By predicting the quality index under the current production condition, the response speed to the quality change is improved, so that the quality index deviation can be quickly analyzed and evaluated in real-time data monitoring.

The invention discloses a path optimization method and system for unmanned aerial vehicle logistics distribution, and relates to the technical field of unmanned aerial vehicle logistics distribution, and the method comprises the following steps: obtaining all executable distribution paths, screening an unmanned aerial vehicle logistics distribution default execution path, obtaining unmanned aerial vehicle distribution state parameters, and analyzing unmanned aerial vehicle logistics distribution state characterization parameters. Path influence parameters of default distribution sub-paths are collected, unmanned aerial vehicle default distribution sub-path optimization label information is judged, all standby sub-paths are counted, logistics adaptation execution priority values of all the standby sub-paths are analyzed, and therefore unmanned aerial vehicle logistics distribution optimal sub-paths are screened and optimized execution is carried out. The unmanned aerial vehicle distribution efficiency and safety can be improved, complex and changeable meteorological conditions and obstacle conditions can be effectively handled, the distribution time and energy consumption are reduced, the adaptability of the unmanned aerial vehicle in a complex environment is enhanced, and smooth completion of a distribution task is ensured.

The invention discloses a preparation method of an ester polycarboxylic acid water reducer, and belongs to the technical field of concrete admixtures. The preparation method of the ester polycarboxylic acid water reducing agent comprises the following steps: under an alkaline condition, carrying out free radical polymerization reaction on a polyether macromonomer and an unsaturated carboxylic acid monomer under the action of a chain transfer agent A, a chain transfer agent B and an initiator, continuously adding a catalyst, and carrying out dehydration esterification reaction under the action of the catalyst, so as to prepare the ester polycarboxylic acid water reducing agent, the polyether macromonomer is monohydroxy polyether of which the molecular weight is between 500 and 5000; the chain transfer agent A is one of acetone, isopropanol, sodium hydrogen sulfite, sodium hypophosphite, sodium formate and the like; the chain transfer agent B is one of mercaptoethanol, mercaptopropanol, mercaptoacetic acid, mercaptopropionic acid and the like; the catalyst is a phosphonic acid compound with hydroxyl or amino. The preparation method is simple in process and low in energy consumption, and the prepared ester polycarboxylic acid water reducer product is excellent in performance.

The invention relates to the technical field of power-assisted robots, in particular to a self-adaptive control lower limb hydraulic power-assisted exoskeleton robot system which comprises a waist supporting device, a leg supporting device, a foot supporting device, a hydraulic power-assisted assembly, an attitude sensor, a lower limb force sensor, a wearable electromyogram sensor, a step obtaining module and a data analysis module. The system can intelligently adjust the output power of the hydraulic power assisting assembly according to the motion posture of the exoskeleton, the pressure data of the foot supporting device and the wearing target muscle state so as to provide proper walking assisting power and bearing support, and the system can further conduct secondary adjustment and fatigue alarm by monitoring the pace frequency and the muscle fatigue degree in real time. The exoskeleton assisting power output power in the carrying process is gradually adjusted according to the comparison result between the weight of the wearing target and the weight of the to-be-moved object, so that assisting power provided by the exoskeleton robot is effectively matched with the weight of the to-be-moved object when the wearing target carries the object.

The invention discloses a biogas fermentation purification liquefaction and carbon capture process. The process comprises a biogas fermentation system for performing high-temperature fermentation on biomass; the biogas purification and liquefaction system, the CO2 purification and liquefaction system and the organic fertilizer production system are arranged at the biogas residue output end of the biogas fermentation system to produce organic fertilizer; a thermal energy recovery system; according to the invention, a high-temperature facultative anaerobic hydrolysis and high-temperature anaerobic fermentation process is provided, so that high-concentration biomass biogas is produced; cH4, H2S and CO2 in the biogas are separated and liquefied by adopting a process of'wet process and dry process serial desulfurization, PSA (Pressure Swing Adsorption) + MDEA (Methyl Methanol Ether Alcohol) decarburization, molecular sieve dehydration, single-order two-stage mixed refrigerant compression and propane refrigeration compression ', and produced liquid CH4 and CO2 are recycled; meanwhile, the biogas residues are subjected to a secondary fermentation technology under the action of microorganisms to obtain a solid organic fertilizer; in addition, the solar heat collection and heat pump technology is utilized, and the whole-field heat energy is recycled to supply heat to the biogas fermentation system.

The invention relates to the field of waterproof sealing materials, and discloses a composite high-weather-resistance rubber waterstop which is composed of an outer layer, a middle layer and an inner layer. The outer layer contains 3%-8% of nano titanium dioxide, 2%-5% of nano zinc oxide, 50%-70% of a rubber matrix and 1%-3% of an ultraviolet light absorber, and the total proportion of the outer layer is 10%-20%. The middle layer is composed of 70%-85% of EPDM, 5%-10% of carbon fiber and 5%-10% of plasticizer, and the total proportion of the middle layer is 60%-75%. The inner layer is a dynamic covalent bond rubber material and contains 5%-10% of a vulcanizing agent and 1%-3% of an antioxidant, the rubber material accounts for 80%-90%, and the inner layer accounts for 15%-25% in total. Through a multi-layer composite structure, a dynamic covalent bond self-repairing material and an optimized vulcanization process, the comprehensive performance of the water-stop belt is remarkably improved, and particularly the durability and the service life of the water-stop belt in a long-term exposure environment are improved.

The invention provides a motion control method and equipment for an ultra-high voltage transmission line deicing robot. The method comprises the following steps: receiving initial input information of a target power transmission line, wherein the initial input information comprises the position, the diameter, the length and the icing thickness of the target power transmission line; based on the initial input information and a preset parameter table, a deicing path and a deicing strategy are generated, and the preset parameter table comprises related parameters of deicing strength and vibration frequency corresponding to the icing thickness; the deicing path and the deicing strategy are sent to a robot end to execute a deicing task; first state information, fed back by the robot end, of the target power transmission line in the deicing process is received, wherein the first state information comprises the actual diameter of the target power transmission line, the length of the deiced power transmission line and the overall thickness of the non-deiced power transmission line; and state parameters of the first state information in a preset parameter table are determined, a deicing strategy is adjusted based on the state parameters, and the adjusted deicing strategy is sent to the robot end to continue to execute the deicing task.

The invention discloses a control system for a cooling fan, and relates to the technical field of cooling fan control systems. The temperature acquisition module is used for monitoring the temperature of a key heating part in real time by adopting a high-precision temperature sensor and converting an analog signal into a digital signal through a data acquisition card; the data processing module is used for receiving the data from the temperature acquisition module and analyzing the data by using an embedded processor; a self-adaptive filtering algorithm is built in the module so as to reduce the influence of environmental noise on temperature reading; and the core of the control algorithm module is a PID (Proportion Integration Differentiation) controller, and a hybrid control strategy is formed by combining fuzzy logic control. Through accurate temperature monitoring and an intelligent control algorithm, the system can quickly respond to temperature change, automatically adjust the rotating speed of the fan, realize efficient heat dissipation and prolong the service life of equipment; the system adopts a variable-frequency speed regulation technology, the operation of the fan is adjusted according to actual requirements, unnecessary energy consumption is avoided, and the energy-saving effect is achieved.

The embodiment of the invention provides a photovoltaic module control device, and the device comprises at least one bypass module which is used for being connected with at least one photovoltaic module in parallel; the driving circuit is used for driving at least one bypass module to work under the control of the controller; the power supply module is used for obtaining electric energy from the at least one photovoltaic module and outputting the electric energy to the controller under the condition that the at least one photovoltaic module works normally and the at least one photovoltaic module is bypassed; and the controller is used for controlling the conduction state of the at least one bypass module so as to control whether the at least one photovoltaic module is in the bypass mode or not. The power consumption of the control device is greatly reduced, meanwhile, the problem of voltage stress borne by the first series switch tube in the series control device when the first series switch tube is disconnected is solved, and the safety performance of the bypass control device is improved.

The invention provides an offshore floating normal-pressure hydrogen storage photovoltaic power generation method, which adopts a normal-pressure hydrogen bag to store hydrogen, and the normal-pressure hydrogen bag is arranged below a photovoltaic cell panel or on an idle sea surface beside the photovoltaic cell panel; the hydrogen preparation device is communicated with the normal-pressure hydrogen bag and the hydrogen fuel power generation device through a hydrogen pipeline, photovoltaic electric energy is gathered through a photovoltaic wire, and then the electric energy is converted into hydrogen for normal-pressure storage. According to the invention, the continuity and stability of power supply can be ensured, and a new low-cost technical path can be provided for replacing thermal power by photovoltaic power generation.

The invention provides an SOT-MRAM memory calculation unit, array, system and method supporting exclusive-or operation, which support data writing and reading and exclusive-or operation and complete common exclusive-or operation in a memory to reduce data transmission so as to relieve the storage wall problem. The SOT-MRAM storage and calculation unit provided by the invention comprises a first NMOS (N-channel Metal Oxide Semiconductor) tube, a first transmission gate and a magnetic tunnel junction SOT-MTJ, the SOT-MRAM storage and calculation array disclosed by the invention comprises four SOT-MRAM storage and calculation units which are arranged in a 2 * 2 manner; the SOT-MRAM storage and calculation system disclosed by the invention comprises an SOT-MRAM storage and calculation array, two induction circuit modules and an XOR operation circuit module, the SOT-MRAM storage and calculation method comprises the following steps of data writing operation, data reading operation and XOR operation.

The invention relates to the technical field of building energy consumption prediction, in particular to a BIM-based building energy consumption prediction method and system, and the system comprises a building data collection module, a building material data analysis module, an equipment data analysis module, a BIM building equipment construction module and an energy consumption control module. A BIM equipment energy consumption three-dimensional model is constructed, an equipment data analysis module analyzes power consumption information of various types of equipment in a building and predicts building energy consumption, and a building material data analysis module analyzes data information of building materials and predicts energy consumption conditions of the building in different environments. The invention aims to predict the energy consumption of the building in advance, maintain the equipment with high energy consumption, improve the operation stability of the equipment and reduce the energy consumption of the building.

The invention provides a method for extracting iron through copper slag sedimentation and application thereof.The method for extracting iron through copper slag sedimentation comprises the steps that copper slag and a calcium oxide-based additive are mixed to obtain mixed copper slag, the calcium oxide-based additive comprises calcium oxide and / or a calcium oxide raw material, the calcium oxide raw material can generate calcium oxide through heating, and the calcium oxide-based additive is added into the mixed copper slag; the adding amount of the calcium oxide-based additive meets the condition that the total mass of the primary calcium oxide and / or the generated calcium oxide is 29%-47% of the mass of the fayalite phase in the copper slag; the mixed copper slag is heated to 1200-1800 DEG C for ore phase reconstruction, and modified copper slag is obtained; and after the modified copper slag is crystallized and settled for 10-20 hours under the condition of heat preservation, mother liquor is collected, and an iron concentrated solution is obtained. According to the method, magnetite in the copper slag can be purified and recycled through devitrification and sedimentation, the process is simplified, and energy consumption and mineral separation pollution in the crushing and ore grinding process in the common technology are effectively avoided.

The invention relates to an efficient vacuum pump unit which comprises a unit table, a motor and a pump table are installed on the top of the unit table, a pump body in butt joint with the motor is installed on the top of the pump table, first vertical plates are installed on the portions, on the two sides of the pump body, of the pump table, a second vertical plate is installed on the top of the unit table, and a cylindrical box is arranged on one side of the unit table. The cylinder box and the air outlet of the pump body are connected with an air cooling part, and the cylinder box and the motor are connected with a water cooling part. Through the design of the air cooling part, the air cooling part carries out convection heat dissipation through air flow pumped by the vacuum pump, energy consumption and loss caused by using an extra motor fan are avoided, operation of the air cooling part is tightly connected with the working state of the pump body, and the air flow pressure generated when the pump body works automatically drives a mechanical structure of the air cooling part; and intelligent control of heat dissipation is realized.

The invention relates to the technical field of liquid crystal display screen brightness adjustment, in particular to a liquid crystal display screen backlight partition dynamic adjustment system capable of enhancing picture contrast. The system comprises the steps of obtaining an image currently displayed by a liquid crystal screen, enhancing the local contrast of the image, determining a brightness influence coefficient equation of each partition according to an established backlight model, solving the brightness influence coefficient equation based on an optimization algorithm, determining a brightness influence coefficient of each partition, and displaying the brightness influence coefficient of each partition. And solving the brightness influence coefficient equation based on an optimization algorithm, determining the brightness influence coefficient of each partition, and adjusting the backlight brightness of the partitions based on a regional dynamic dimming algorithm. According to the invention, the brightness of each backlight subarea can be adjusted in real time according to the image content, so that black and white in the picture are darker, the contrast ratio is obviously improved, the backlight brightness is intelligently adjusted according to the brightness and color distribution of the image content, and unnecessary energy consumption is avoided.

The invention discloses a diesel-electric hybrid power system energy management method in a low-temperature environment, and belongs to the field of hybrid power system energy management. The implementation method comprises the following steps: for a battery, introducing part of cooling liquid in a diesel engine cooling system into a battery cooling system, constructing a battery low-temperature preheating loop, preheating the battery through the battery low-temperature preheating loop, and fully utilizing the waste heat of the cooling liquid of the diesel engine. For the diesel engine, when the temperature of the cooling liquid of the diesel engine does not reach the preset suitable working temperature, the intake air of the diesel engine is preheated in the mode that flame preheating and positive temperature coefficient material preheating are combined. By combining the two preheating measures, on the basis of an equivalent fuel consumption minimum strategy, a self-adaptive equivalent fuel consumption minimum strategy is constructed, and the battery charge state, the power unit temperature and the diesel engine air inlet preheating power are comprehensively considered to conduct self-adaptive adjustment on equivalent factors; and related parameters of the adaptive equivalent factors are optimized based on an improved genetic algorithm, so that the temperature rise time of the power unit is shortened, and the fuel economy is improved.

The invention provides a photovoltaic system. The photovoltaic system comprises a photovoltaic module; a steam generating structure; a steam collector; a steam condensation structure; the liquid level in the steam condensation structure is flush with the liquid level in the steam collector. According to the photovoltaic system provided by the invention, the steam generation structure is arranged in the photovoltaic module, and the steam quantity generated in the steam generation structure can be automatically adjusted along with the temperature of the photovoltaic module, so that dynamic heat dissipation can be performed on the photovoltaic module to prevent the temperature of the photovoltaic module from being too low or too high, and the reliability and the service life of the photovoltaic module are ensured; and the liquid level conservation principle of the communicating vessel is utilized, so that a medium released by heat and liquefied in the steam condensation structure automatically flows into the steam generation structure and the steam collector, the heat dissipation effect on the photovoltaic module can be realized under the condition that a power mechanism (such as a compressor) is not arranged, the production cost of the photovoltaic module is reduced, and the production efficiency of the photovoltaic module is improved. And the energy consumption of the power mechanism is avoided, and the power generation efficiency of the photovoltaic module is improved.

The straight-chain alkylbenzene production equipment comprises a reaction electric heating kettle and a kettle cover, one side of the top of the reaction electric heating kettle is communicated with a first feeding pipe, the other side of the top of the reaction electric heating kettle is communicated with a second feeding pipe, and the bottom of the reaction electric heating kettle is communicated with a discharging pipe; the resistance value of the pressure rheostat can be adjusted according to the liquid level of reaction liquid in the reaction electric heating kettle, so that currents passing through three groups of coil iron cores are different, the magnetic forces of the three coil iron cores are different, and the viscosities and the flowability of magnetorheological fluid in three rotating boxes are different; the stirring strength of the stirring rod also presents a trend of increasing from top to bottom, unnecessary energy consumption caused by excessive stirring of the materials can be avoided, sufficient mixing of the materials is ensured, through the differential rotating speed setting, optimization of the stirring effect is achieved, unnecessary consumption of part of stirring energy is remarkably reduced, and the stirring efficiency is improved. The operation load of the driving motor is reduced, and the service life of the driving motor is prolonged.

The invention discloses a regenerated cellulose industrial filament spinning solution, a preparation method thereof and a preparation method of regenerated cellulose industrial filaments. The preparation method of regenerated cellulose industrial filament spinning comprises the following steps: carrying out alkalization treatment on an ionic liquid aqueous solution; preparing cellulose pulp; premixing the alkalized solution and cellulose pulp; preparing a spinning solution; preparing cellulose industrial filaments from the test lines; under pushing of nitrogen and a booster pump, the test line spinning solution is extruded through a filter and a spinning assembly in sequence, and regenerated cellulose hydrogel filaments are obtained through side blowing cooling and coagulating bath forming; and drawing, washing, drying and rolling the gel to obtain a finished product. According to the regenerated cellulose industrial filament spinning stock solution, the preparation method thereof and the preparation method of the regenerated cellulose industrial filament, high-molecular-weight cellulose pulp can be uniformly dissolved with high quality; the problems of cellulose degradation and high energy consumption caused by temperature rise and dissolution time prolonging in the traditional process are avoided.

The utility model provides a waveguide display system. The waveguide display system comprises a light projection part used for emitting light of various angles or various polarization states; the carrier is provided with a coupling-out part, the coupling-out part comprises a plurality of coupling-out gratings, the plurality of coupling-out gratings are sequentially stacked in the direction far away from the carrier, different coupling-out gratings are used for receiving light in different polarization states or different angles, and the diffraction angles of the different coupling-out gratings are different. Therefore, the plurality of coupling-out gratings can couple light out of the carrier at different angles to form a plurality of image areas. The waveguide display system solves the problem that the waveguide display system in the prior art is difficult to display a plurality of images respectively under the same visual angle.

The present invention belongs to the field of motor heat dissipation, and specifically relates to a semi-superconducting motor adaptive heat dissipation control method and system, which aims to solve the problems of insufficient real-time performance, complex models, high difficulty in optimizing control strategies, and poor adaptability in the prior art. The present invention includes: obtaining real-time temperature data of the motor; inputting the real-time temperature data and motor load data as input data into a fuzzy control algorithm optimized based on a genetic algorithm; the fuzzy control algorithm calculates control parameters based on fuzzy rules, and adjusts the speed of the motor fan and the heat dissipation area of ​​the radiator based on the control parameters. The present invention can flexibly change the search strategy of the genetic algorithm according to the individual's fitness, improve the search efficiency and optimization results, can accurately control and adapt to a variety of systems, increase the service life of the motor, and simplify design and debugging.

The technical scheme belongs to the technical field of wood splitting devices, and particularly relates to a wood splitting machine which comprises a rack, a baffle, a wood splitting axe, a two-way rapid oil cylinder and a power unit. The two-way quick oil cylinder and the baffle plate are arranged on the rack; the wood breaking axe is installed at the driving end of the two-way rapid oil cylinder, the wood breaking axe is S-shaped, wood can be split more easily, and a working space used for containing the wood is formed among the rack, the baffle and the wood breaking axe; the power unit is integrated on the rack to provide oil pressure for the two-way rapid oil cylinder; the hydraulic control switch valve and the control valve are stacked and integrated into a whole through the two-way rapid oil cylinder. The main beam is arranged on the machine frame, the tail end of the main beam is bent and upwarped, the tail plate is embedded and welded to the tail end of the main beam, the reinforcing plates are arranged on the two sides of the tail plate, the main beam is formed by cutting an integral sectional material, and compared with a traditional main beam formed by welding three plates, machining procedures of the main beam are reduced; and the bent guide plate is additionally arranged between the baffle and the sliding rail on the main beam, so that the strength of the baffle is improved while residual wood grid chippings are conveniently cleaned.

The utility model belongs to the technical field of electrode paste production equipment, and discloses an electrode paste binder anti-residue discharging system of a double-stirring mixing and kneading pot, the system comprises a first-stage feeding pipe for communicating a tar scale, an asphalt scale and the double-stirring mixing and kneading pot, an excess material collecting assembly and a material blowing assembly, the excess material collecting assembly comprises a wet material collecting tank and a second-stage feeding pipe, and the second-stage feeding pipe is communicated with the second-stage feeding pipe. A wet material outlet is formed in the bottom of the wet material collecting tank, the wet material outlet is communicated with the double-stirring mixing and kneading pot through a second-stage feeding pipe, a wet material inlet and an exhaust port are formed in the position, away from the top, of the wet material collecting tank in a spaced mode, a discharging valve is arranged at the discharging end of the first-stage feeding pipe, and the wet material inlet is communicated with the front end of the discharging valve in a one-way mode; the material blowing assembly comprises a negative pressure pump, a material blowing air inlet is formed in the feeding end of the first-stage feeding pipe, the air inlet end of the negative pressure pump is communicated with the air outlet, the negative pressure pump is used for sucking residual wet materials in the first-stage feeding pipe into the wet material collecting tank firstly, the wet material outlet is opened after accumulation, and the residual wet materials are injected into the mixing and kneading pot through the second-stage feeding pipe.

The invention provides a laser radar adjusting method and system for rainy and foggy weather, a medium and a vehicle, and belongs to the technical field of intelligent driving, and the method comprises the steps: obtaining real-time weather state information which comprises at least one of rainfall information and foggy weather visibility information; based on the real-time weather state information, calculating an influence factor of a current weather condition on a laser radar atmospheric propagation path; based on the influence factor, determining a laser radar atmospheric attenuation coefficient under the current weather condition; and based on the atmospheric attenuation coefficient, adjusting working parameters of the laser radar to compensate echo signal intensity reduction caused by atmospheric attenuation. According to the invention, the accuracy of laser radar adjustment in rainy and foggy weather is improved, and the intelligent degree and safety of intelligent driving are improved.

The invention provides a drawer with adjustable cooling capacity, a refrigerator and a temperature control method, and relates to the technical field of refrigerators, a drawer assembly comprises a drawer main body and a cover plate structure, the top of the drawer main body is an open end, the cover plate structure is arranged at the top of the drawer main body, and the cover plate structure comprises a fixed plate, a movable plate and a driving mechanism; the fixed end of the driving mechanism is connected with the fixed plate, the moving end of the driving mechanism is connected with the moving plate, and the driving mechanism drives the moving plate to move so that the moving plate can shield the open end of the drawer body and close the drawer body, or the moving plate can be far away from the open end of the drawer body and open the drawer body. The driving mechanism is adopted to drive the cover plate to move, the cooling capacity in the drawer is automatically adjusted while sealing and moisturizing are achieved, the cooling rate of food materials in the drawer is increased, the refrigeration efficiency is optimized, the storage requirement and the fresh-keeping effect of the food materials are met, and the problems that a traditional refrigerator is not flexible in cooling capacity adjustment, poor in food fresh-keeping effect and poor in refrigerating effect are solved. And the energy consumption is relatively high.

The utility model relates to a drilling dust removal mechanism for aluminum substrate machining, which comprises a machining table, an air suction pipeline is arranged at the upper end of the machining table, one end of the air suction pipeline is communicated with a fixed air suction pipe head, a rotating groove is formed in the middle of the air suction pipe head, and a through hole is formed in one side of the middle of the air suction pipe head in a penetrating manner; a top plate is fixedly connected to the upper end of the rotating gear ring, a plurality of guide sliding grooves are evenly formed in the periphery of the middle of the top plate, a plurality of moving grooves are evenly formed in the periphery of the middle of the rotating gear ring, sliding rods are slidably clamped to the middles of the moving grooves, baffles are fixedly installed on one sides of the upper portions of the middles of the sliding rods, and the upper ends of the sliding rods are slidably clamped to the middles of the corresponding guide sliding grooves. A protection cover is fixedly installed on one side of the air suction pipe head, a fixing plate is fixedly installed on one side of the middle of the protection cover, and a gear is rotationally installed at one end of the fixing plate and meshed with the rotating gear ring. When in use, the dust removal device can dynamically adapt to a processing scene, so that the dust removal efficiency and the energy consumption are optimized, and the energy-saving effect is achieved.

The invention relates to the technical field of intelligent control, and discloses a towel heating device and method with a furniture linkage control function, and the device comprises a housing, a heating barrel, a wifi module, a mechanical arm, a moving module and a control module; the heating barrel is used for heating towels; the wifi module is used for being connected with a device to be controlled through the Internet of Things; an infrared spectrum sensor is arranged on the mechanical arm; the control module comprises an acquisition unit for acquiring to-be-patrolled range data and determining single-time patrolling duration; the judgment unit collects a reflectivity curve to judge dry and wet states of the towel; the processing unit determines the operation power of an air heater in the heating barrel according to the number of the wet towels in the heating barrel, the water content condition and historical processing data; the adjusting unit collects humidity data to judge whether the exhaust fan is started or not, and the adjusting unit further collects humidity change data to adjust and control the exhaust fan. According to the invention, the operation power of the air heater is automatically adjusted, linkage control with other home equipment is realized, and the intelligent degree of the robot is improved.

The invention discloses a harmonic measurement calibration method for an intelligent electric meter, and the method comprises the steps: arranging a resistor on a connection line of the intelligent electric meter, obtaining an oscillogram of a harmonic signal and a temperature rise diagram of the resistor, analyzing the corresponding relation between the oscillogram of the harmonic signal and the temperature rise diagram of the resistor, and if the corresponding relation does not change, determining that the intelligent electric meter is in a harmonic state. If not, the measurement precision of the harmonic measurement end is insufficient; the method is low in cost and high in calibration efficiency, and solves the technical problems that at present, the harmonic calibration of the intelligent electric meter is carried by a worker with a high-precision harmonic measurement instrument, the harmonic measurement of each intelligent electric meter is manually calibrated, the calibration efficiency is low, large-area harmonic calibration work is not facilitated, and the like.