139results about How to "Guaranteed volatility" patented technology

The invention discloses a control method of an electric four-wheel drive hybrid vehicle. Under the conventional mode, the power allocation and the shift selection of the whole hybrid system in a finished vehicle controller can be determined according to the current vehicle speed, a throttle, an SOC (State Of Charge) and other signals, so that the total efficiency of the whole hybrid system is optimized rather than the efficiency of a single power source is optimized, thereby more effectively improving the economy of a finished vehicle of an E4WD hybrid vehicle and further achieving the aim of improving the economy of the vehicle fuel. In the concrete implementation process, the power allocation and the shift selection are realized by checking up VP, the power which can be actually provided by a battery and an engine in the running process of the vehicle is considered, the calculation speed of a hybrid control unit (HCU) is improved and the practicability of the control method is enhanced.

The invention discloses a bifunctional catalyst for catalyzing ORR and OER and preparation and application of the bifunctional catalyst. The bifunctional catalyst is a nitrogen-doped MOF bifunctionalair catalyst under the combined action of binary metal, wherein the binary metal is Fe and Co. The MOF bifunctional air catalyst is nano-particles with a regular dodecahedron structure, so that the cost can be greatly reduced, and large-scale popularization and application can be realized. The method disclosed by the invention is realized by preparing a precursor through a constant-temperature solvothermal reaction, centrifugally washing and purifying the precursor and carbonizing at a high temperature to obtain the catalyst, and is simple to operate and easy to control. Cheap and basically harmless chemicals such as metal nitrate are selected as raw materials in the preparation process, the obtained precursor purifying and drying method is simple, convenient and low in time consumption, ametal organic compound required for preparing a catalyst with a special structure is avoided, and the cost can be further reduced.

The invention discloses a method and device for controlling the humidity in a refrigeration cabinet. The method comprises the steps of controlling a compressor of the refrigeration cabinet to operate at the refrigeration frequency according to the temperature in the refrigeration cabinet and the set temperature, and starting the refrigeration mode; under the refrigeration mode, if it is judged that the humidity in the cabinet is lower than the first preset value, reducing the operation frequency of the compressor within the operation frequency range of the compressor, and starting the frequency-decreasing humidity control mode so as to improve the humidity in the cabinet; and before the compressor enters the frequency-reducing humidity control mode, if it is judged that the humidity in the cabinet is higher than the second preset value, improving the operation frequency of the compressor within the operation frequency range of the compressor, and starting the frequency-increasing dehumidification mode so as to reduce the humidity in the cabinet. By controlling the frequency operation range of the inverter compressor, high-frequency dehumidification and low-frequency humidity control are achieved, the effect that relative humidity in the refrigeration cabinet fluctuates within a certain range is ensured, control over humidity is accurate, and no component needs to be additionally arranged.

The invention discloses a water replenishment control method and device and a water heater. The water replenishment control method comprises the steps that the current water temperature of a water tank is detected; a first preset temperature and a second preset temperature are obtained, wherein the first preset temperature is lower than the second preset temperature; when water in the water tank is in the medium water level, according to the relation among the current water temperature, the first preset temperature and the second preset temperature, water replenishment is controlled to be carried out on the water tank based on a preset water replenishment strategy till the water in the water tank is in the high or low water level. By means of the water replenishment control method and device, the technical problem that an existing water heater cannot stably supply hot water is solved.

The invention provides an optimal output calculation method and an optimal output calculation device for an energy storage system for smoothening wind power fluctuation, and is applied to the technical field of wind power generation. The optimal output calculation method includes performing the Fourier transform to ultra-short period wind power prediction curves to acquire a wind power prediction curve spectrogram, determining a cut-off frequency pre-selection interval for first-order low-pass filtering, performing first-order low-pass filtering to the ultra-short period wind power prediction curves to acquire a wind energy storage fluctuation rate prediction curve and a wind energy storage power prediction curve, determining the maximum cut-off frequency meeting the preset wind energy storage fluctuation rate, determining the optimal cut-off frequency selection interval, acquiring an energy storage power curve, calculating charge and discharge efficiency of the energy storage power curve, determining the optimal cut-off frequency, determining the optimal output curve of the energy storage system, and guiding output of the energy storage system according to the optimal output curve of the energy storage system. Optimization of energy status variation of the energy storage system is taken into consideration, and thus the overall implementing process is simple and easy to control, and the optimal output calculation method and the optimal output calculation device have good practicability.

The invention discloses an antibacterial coating material for paper products. The good toughness and high barrier property to water vapor of carboxymethyl chitosan are utilized for enhancing waterproofness of a coating. SiOx is utilized for carrying out molecular modification on carboxymethyl chitosan, the permeable rate of the coating is further reduced, the toughness of the coating is improved, then a SiOx/carboxymethyl chitosan solution serves as an adhesive of the coating and is mixed with polylactic acid with high grease preventing performance to form a co-mixed coating, therefore, the defects that a polylactic acid material is low in strength, high in brittleness, poor in waterproofness and the like are overcome, and the barrier property of the coating to oxygen is enhanced. The porosity of halloysite is utilized for dipping in plant essential oil, the plant essential oil can be slowly released, and it is guaranteed that the volatilization amount is within a proper range. The obtained antibacterial coating material is used for coating the paper products, therefore, the water vapor, oxygen and grease preventing performance of the paper products can be enhanced, and invasion of bacteria into objects in packaging paper can be inhibited.

The invention relates to a magnetic coin high-speed identification device, wherein the identification of the authenticity of coins comprises the following steps of: scanning magnetic parameters of the surface of a sample to be detected to acquire fluctuation signals of the magnetic parameters of the surface of the sample to be detected, and comparing the acquired fluctuation signals with the preset fluctuation signals of real coins to identify the authenticity of the sample. The device of the invention is provided with a coin centrifugally driving system, a control system, a coin surface magnetic signal acquiring system, a data analyzing system and a false coin eliminating system, wherein the coin centrifugally driving system sequences coins in a special coin channel and enables the coins to pass through the special coin channel at high speed; the control system controls coordinated actions of each system and human-computer interfaces; the coin surface magnetic signal acquiring system scans magnetic signal fluctuation of coin surfaces when the coins pass through the system; when the coins pass through a sensor at high speed, the magnetic sensor acquires three groups of fluctuation signals and converts the signals into digital signals, and the data analyzing system compares the scanning signals with the digital signals for analyzing; and the false coin eliminating system strikes false coins by using an electromagnetic valve according to control system signals, thereby eliminating the false coins.

The invention discloses a multifunctional vehicle for emergency disaster relief and drainage of stagnant water. The multifunctional vehicle comprises a carrier loader chassis as well as a driving cab and a carriage which are arranged on the chassis, wherein a backpack type hydraulic oil tank and a fire extinguisher are arranged in a gap between the driving cab and the carriage, and a chassis power take-off hydraulic power station connected with the hydraulic oil tank is arranged on the chassis; a power generation bin, an equipment bin and a tool bin are arranged in the carriage, a vehicle-mounted power generation unit and a hidden type vehicle-mounted lifting rotary illumination device are arranged in the power generation bin, a vehicle-mounted cantilever crane is arranged on one side of the tool bin, a hydraulic saw and a hydraulic pickaxe are arranged on the other side of the tool bin through a support, and a cable hoist, an integrated type vehicle-mounted cleaning machine and an extension ladder are hoisted at the bottom of the carriage. The multifunctional vehicle for emergency disaster relief and drainage of stagnant water integrates multiple functions through reasonable and compact layout design within a limited space range, the power generation unit is arranged at the front part of the carriage and in the position where the gravity center of the load of the whole vehicle is located, so that the transportation stability of the vehicle is effectively guaranteed, and the vehicle traveling safety is effectively guaranteed.

The invention discloses a coating material for a paper product. Halloysite, palyorskite and kaolinite are used as fillers and according to porousness of the halloysite, palyorskite and kaolinite, plant essential oil enters pores of the halloysite, palyorskite and kaolinite so that plant essential oil can be slowly released. The wet halloysite, palyorskite and kaolinite have viscosity, plasticity and good suspension properties and can effectively prevent coating deposition and layering. Through modification of a soybean protein, hydrophily of the soybean protein is changed into hydrophobicity so that coating water resistance is improved. Through crosslinking of the soybean protein and glutaraldehyde and use of a chain extender for chain extension, a complex net structure is formed in the soybean protein and soybean protein cohesion and toughness are improved. Through mixing of the modified soybean protein and the modified polylactic acid, paper product barrier properties are improved.

The invention discloses a portable mini vacuum pump negative pressure scar treatment device which comprises a scar repair paster, a biological semipermeable membrane, a suction cup and a mini vacuum pump. The scar repair paster covers the scar skin. The suction cup covers the scar repair paster. The biological semipermeable membrane covers the scar repair paster and the suction cup. One end of the suction cup is provided with a drainage pipe and connected with the mini vacuum pump through a connecting pipe. The portable mini vacuum pump negative pressure scar treatment device is provided with a pressure detection device, the mini vacuum pump is adopted for generating negative pressure, the system adjusts and controls the negative pressure, a large-capacity lithium battery is used for continuously supplying power, no large center negative pressure system or electric negative pressure instrument is needed, no socket power is needed, and the portable mini vacuum pump negative pressure scar treatment device is small in size, portable and capable of being used for patients inside or outside hospitals for a long time, produces no complication or side effects, is low in price and convenient to use and avoids the risks of chemical substance leakage and corrosion and environment pollution possibly caused when a battery is used for a long time.

The invention provides a preparation method for a silicon-titanium polymer capable of being used as an additive. According to the method, hydroxyl terminated polysiloxane and titanium chloride are used as raw materials, and two-step condensation is carried out so as to prepare the silicon-titanium polymer. The method has the following advantages: the raw materials are cheap and easily available; and the prepared polymer has no corrosivity on metal. The silicon-titanium polymer can be applied in the field of bonding materials; and when used as an additive for an adhesive, the silicon-titanium polymer has good compatibility and can improve heat resistance and bonding performance of the adhesive.

The invention discloses a bird repelling device for a high-voltage power transmission line tower. The bird repelling device comprises an outer sleeve, a supporting rod connected with the outer wall ofthe outer sleeve, a hollow pipe arranged inside the outer sleeve and a fan blade assembly and a spring assembly located on one side of the outer sleeve. Compared with the prior art, the bird repelling device is simple in structure, utilizes the fan blade assembly to convert wind energy into kinetic energy, achieves effective energy transfer, the fan blade assembly is driven by wind to drive the spring assembly to compress, a conduction mechanism wholly moves to the right, so that the conversion of wind energy to kinetic energy is achieved, meanwhile an air outlet at the tail end of the hollowtube is matched with a ventilation channel of a supporting cylinder body, the transmission of the wind energy is achieved, and when the wind energy is transferred into an object placing cavity, a flip cover is blown to be opened to release a bird repellent component therein.

The invention discloses an organic fertilizer prepared from cow dung and straws and a preparation method thereof. The preparation method comprises the following steps: firstly, uniformly mixing cow dung, fruit and vegetable straws and high-carbon auxiliary materials; stacking a mixture obtained in the previous step layer by layer to form a piled body, and spraying a decomposition agent and fillingthe piled body with a decomposition fertilizer in the process of stacking; and introducing hot air into the piled body, covering the surface of the piled body with a thin film, turning over the piledbody for the first time after a period of time, adding a nitrogen fixing agent in the process, covering the piled body with the thin film for continuous composting, uncovering the thin film after a period of time, and performing free composting to obtain the organic fertilizer. By adopting the method disclosed by the invention, harmless treatment of vegetable waste can be realized, the vegetablewaste can be recycled as a fertilizer, and environmental pollution can be effectively avoided; and the organic fertilizer prepared by adopting the method disclosed by the invention is easily absorbedby crops and plays a positive role in increasing the yield of the crops.

The invention discloses a polymer nanometer composite material and a preparation method thereof. The method comprises following steps: (1) a composite nonwoven fabric of a nanofiller and a polymer matrix is prepared by an electrospinning method; the composite fiber constituting the composite nonwoven fabric has the polymer matrix as a main fiber skeleton, and the nano filler is dispersed in the main fiber; (2) the polymer nanometer composite material can be obtained by hot pressing the composite nonwoven fabric. Compared with the general film forming process, the method of the invention is notonly simpler and more efficient, but also has better uniformity and homogeneity of the prepared composite material. The composite material of the invention can realize the uniform dispersion of the particles of the filler material in the composite material, the surface is smooth, the interior is dense and has no pores, the thickness is uniform and fine controllable in a wide range. At the same time, it has excellent dielectric properties and high performance stability, and is expected to be widely used in dielectric materials.

The invention discloses a preparation apparatus and preparation method of a polyimide thick membrane or a polyimide ultrathick membrane, which belongs to the technical field of polyimide membranes. The preparation apparatus comprises a shell, wherein a metal plate parallel to the bottom surface of the shell is arranged inside the shell, the interior of the shell is divided by the metal plate intotwo independent heating cavities and a cooling cavity located on the upper portion of the heating cavity, the top of the heating cavity is provided with a heating pipe parallel to the metal plate, twoside surfaces of the cooling cavity are respectively provided with an air inlet and an air outlet, the outer side of the shell is provided with an air blower, the air blower is communicated with thecooling cavity by virtue of the air inlet, and a thermocouple is arranged in the middle of the metal plate. The invention also discloses a method for preparing the polyimide thick membrane or the polyimide ultrathick membrane by using the preparation apparatus. By adopting the preparation apparatus and preparation method, the polyimide thick membrane or polyimide ultrathick membrane with thicknessgreater than 50 micrometers can be prepared; and moreover, the structure is simple, and the operation is easy.

The invention relates to an automatic monitoring system and an automatic monitoring method for dissolved oxygen in recirculating aquaculture. The automatic monitoring system comprises a dissolved oxygen probe, a temperature probe, a basic oxygen supply unit and an emergency oxygen supply unit which are arranged in a culture pond, wherein the dissolved oxygen probe and the temperature probe are connected with a data reading unit, the data reading unit is connected with a PLC and transmits acquired data to the PLC via an Modbus protocol, the PLC is connected with an upper computer server and uploads the received acquisition data to the upper computer server, the PLC is connected with an electromagnetic valve, and the electromagnetic valve is connected with the emergency oxygen supply unit. The automatic monitoring method comprises the steps of: (1) starting the automatic monitoring system; (2) setting the PLC; (3) comparing and controlling an acquisition value and a set value of the PLC in real time; and (4) uploading data of the PLC. The automatic monitoring system and the automatic monitoring method are affordable, ensure that the dissolved oxygen fluctuates within a set range, send out alarm when an abnormity occurs, and improve the operation reliability of the system.

The invention discloses a power supply circuit for inverter power sources and a home appliance with the same. The power supply circuit comprises a motor, a power input module connected with a power source, a rectifier module connected with the power input module and having a first output end and a second output end, a first capacitor connected between the first output end and the second output end of the rectifier module, a discharge module connected in parallel with the first capacitor and including a first resistor and a second capacitor which are connected in series, an inverter module connected with the first output end and the second output end of the rectifier module and used for controlling the motor, an acquisition module used for acquiring the voltage of the first capacitor, a brake signal generation module used for generating a brake signal according to the voltage of the first capacitor, and a control module used for controlling brake of the motor according to the brake signal in order to implement protection through brake control in the case of overvoltage and ensure that the voltage of the first capacitor fluctuates in a preset range.

The invention relates to a mosquito defending and repelling lamp which comprises a hollow shell and a mosquito-lured lamp arranged on the upper side of the shell. A draught fan and a mosquito repelling part are arranged in the shell. A mosquito storing chamber for storing mosquito corpuses is formed at the bottom of the shell. An air inlet and an air outlet which are communicated with each other are formed in the shell. The air inlet is formed in the top of the shell and can allow mosquitoes to pass through. The air outlet is located below the draught fan and can prevent mosquitoes to pass through. A night lamp assembly for illumination is arranged in the shell and located between the mosquito-lured lamp and the draught fan. The shell is at least locally transparent or semi-transparent sothat light can permeate through the shell. The mosquito repelling part absorbs mosquito repelling liquid and is arranged below the draught fan. When the mosquito-lured lamp is turned on, the draught fan works, and the negative pressure is formed in the shell so that mosquitoes can be sucked in; when the mosquito-lured lamp is turned off, the draught fan works so that the mosquito repelling liquidcan volatile. Multiple purposes are realized through the draught fan, the draught fan is matched with the mosquito repelling part for repelling the mosquitoes, no other parts need to be arranged for repelling the mosquitoes, multiple purposes are realized through one lamp, and few parts are involved.

The invention discloses an air conditioner which comprises a calculating unit used for calculating the indoor temperature difference delta T between the indoor environment temperature and the indoor set temperature, and a control unit, configured to, when the air conditioner starts to refrigerate and operates at the target superheat degree, control and adjust the superheat degree according to thedelta T and the current superheat degree at set intervals; when the air conditioner starts to heat and operates at the target liquid pipe temperature, control and adjust the liquid pipe temperature according to the delta T and the current liquid pipe temperature at set intervals; and when the air conditioner conducts refrigeration and the delta T is smaller than the low-temperature set value for afirst time period or when the air conditioner conducts heating and the delta T is larger than the high-temperature set value for a second time period, control an indoor unit to stop. The air conditioner is used for solving the problems of frequent starting and stopping and low air outlet comfort after the indoor unit reaches the set temperature, frequent starting and stopping are avoided, the energy consumption ratio is reduced, the service life of the compressor is prolonged, and the user experience is improved.

The invention discloses an environmental-friendly convenient paper cup. The invention aims to prevent dust and other substances from dropping into the cup body so as to prevent illness from entering via the mouth. A cup cover is arranged on the cup body; a plurality of first through holes are formed in the cover surface of the cup cover, and a good breathable effect can be achieved. When the cup body is filled with hot water, a breathable effect is achieved, and the condition that the cup cover and cup body deform due to extremely high pressure inside the cup body is avoided. In order to prevent tiny matters such as dust from entering the cup body via the first through holes, a spacer is clamped in the cup cover, a plurality of second through holes formed in the spacer also can achieve the breathable effect, the first through holes and the second through holes are staggered with one another, and the aim of preventing the tiny matters such as dust from entering the cup body is achieved.

The invention discloses a method for forecasting evenly distributed live data, comprising the following six steps of: step I, removing average value; step II, finding out a large number; step III, processing trend; step IV, forecasting gray GM (group mark) (1, 1); step V, restoring the data; and step VI, evaluating the error. The method is based on the gray GM (1, 1) model, the input data is featured with smooth growth by subjecting to equalization and delta transformation treatment, the forecasting purpose is achieved by means of GM (1, 1), and the data is finally restored to obtain the prediction data. The method for forecasting evenly distributed live data has the advantages that the design is scientific, the calculation is simple, the work capacity is low, the forecast accuracy is high; the method in the technical field of system reliability analysis has good practical value and wide application prospect.

The present invention discloses a grapefruit tea and a preparation method thereof. The preparation method includes the following steps: (1) preparing grapefruit peels; 2) preparing tea ingredients; 3) filling the dried soft tea leaves obtained in step 1 into grapefruit peel cavities, putting the grapefruit peel cavities into a baking chamber at a temperature of 70 DEG C for 2 hours, taking out the grapefruit peel cavities and filling the tea leaves into the grapefruit peel cavities, compacting the filled tea leaves, and repeating the filling and compacting processes for several times until the grapefruit peel cavities are fully filled with the tea ingredients and it is very difficult to fill the tea ingredients in the grapefruit peel cavities; 4) baking the grapefruit tea for several times; and other steps. The preparation method solves the shortcomings that the existing grapefruit tea is poorly baked and the brewed tea has a bitter taste so that the tea water is difficult to enter into mouth.

The invention relates to the technical field of air conditioners, in particular to a draught fan and an air conditioner with the draught fan. The draught fan comprises a rotating body, at least two blades arranged on the rotating body, microhole runners arranged in the blades and communicating with water sources in the blade rotating process, and ventilation holes formed in the force suction facesof the blades and communicating with the microhole runners, wherein the force suction faces of the blades are the faces, of which the peripheral air flow pressure is lower than the atmospheric pressure, of the blades in the rotating process, the ventilation holes are used for introducing the negative pressure into the microhole runners to accelerate vaporization of water in the microhole runners,and the vaporized vapor is sent out through the rotating blades. Due to the fact that the microhole runners are arranged in the blades of the draught fan, due to gravity or centrifugal force generated by blade rotating, feeding of water in the microhole runners in the blades is achieved; and due to the fact that the ventilation holes are formed in the force suction faces of the blades, the ventilation holes are used for introducing the negative pressure into the microhole runners, and therefore vaporization of water in the microhole runners is accelerated, and the moisture content of the airis rapidly increased.