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56results about How to "Output control" patented technology

Ice-melting system capable of automatically adjusting output current according to iced line temperature

The invention relates to an ice-melting system capable of automatically adjusting output current according to iced line temperature. The system comprises an iced line, which is led out from the DC side of an ice-melting power supply module, and is connected with a temperature site monitoring sensor module for obtaining conductor temperature data of the iced line and an icing site monitoring sensor module for obtaining conductor external diameter data of the iced line; the temperature site monitoring sensor module, which is in both-way connection with a temperature fiber grating adjusting module; the icing site monitoring sensor module, which is in both-way connection with an icing fiber grating adjusting module; the temperature fiber grating adjusting module and the icing fiber grating adjusting module are connected with a monitoring calculation module; and the monitoring calculation module is connected with the ice-melting power supply module. The ice-melting system capable of automatically adjusting the output current according to the iced line temperature can adjust the output current of an ice-melting power supply according to the temperature of the iced line, and has the advantages of automatic adjustment, quick communication, remote transmission and severe environment adaptation and the like.
Owner:STATE GRID CORP OF CHINA +3

Audio output apparatus, information processing methods, and audio play device

Embodiments of the present invention provide an audio output apparatus and information processing methods. The audio output apparatus includes a first audio output component, a second audio output component, and a transmission component. The first audio output component is used for outputting an audio. The first audio output component includes at least one first sensor. The first sensor is used for detecting wearing information representing the first audio output component, so as to form first detection information. The second audio output component is used for outputting an audio. The second audio output component includes at least one second sensor. The second sensor is used for detecting wearing information representing the second audio output component, so as to form second detection information. The transmission component is connected with the first audio output component and the second audio output component, and is used for sending the first detection information and the second detection information to an audio play device connected with the audio output apparatus. The first detection information and/or the second detection information can be used for providing a basis for determination of an audio output parameter of the audio output apparatus.
Owner:LENOVO (BEIJING) LTD

Method for calculating steel ball loading capacity of coal mill in thermal power generation boiler

A method for calculating the steel ball loading capacity of a coal mill in a thermal power generation boiler comprises the steps that the calculation equation of the steel ball loading capacity m of the steel ball coal mill is k4*mk5+k6*mk5-1=k7*I/(Bm*h), wherein m is the steel ball loading capacity of the steel ball coal mill, h is a raw coal blending HGI hardness coefficient of a coal pulverizing system and a boiler combustion system, I is current of the steel ball coal mill, Bm is output of the steel ball coal mill, and k4, k5, k6 and k7 are undetermined coefficients; the problem that in the production site, raw coal blending hardness cannot be obtained can be effectively solved; meanwhile, according to online data of the current and the output of the steel ball coal mill, the steel ball loading capacity of the running steel ball coal mill can be rapidly evaluated, running maintenance persons can be guided to reasonably organize steel ball loading of the coal mill according to the optimum steel ball loading amount of the coal mill, and therefore the output of the steel ball coal mill can be effectively improved; and the current of the steel ball coal mill is controlled, running parameters of the coal pulverizing system can be optimized in an online manner, the economy of the coal pulverizing system of the thermal power generation boiler can be improved, and the effects of saving energy and reducing the consumption are achieved.
Owner:HUADIAN POWER INTERNATIONAL CORPORATION LTD

Flow bending type control valve and well system

The invention discloses a flow bending type control valve and a well system. The flow bending type control valve and the well system comprise a well completion tubular column and the flow bending typecontrol valves. Multiple groups of the flow bending type control valve are sequentially arranged at intervals on the horizontal section of the well completion tubular column in the direction from theheel end to the toe end in a sealing mode. The flow bending type control valves comprise covering plates and valve bodies; the covering plates and the valve bodies are in interference fit; the valvebodies are provided with circle cavities and control cavities; the circle cavities are provided with liquid inlets communicating with the outside; the circle cavities and the control cavities are connected correspondingly by flow channels A and flow channels B; and spraying nozzles communicating the control cavities with the lower end of the valve bodies are arranged at the bottoms of the controlcavities. According to the flow bending type control valve, pressure drop flowing the flow bending type control valve is determined based on liquid physical properties (viscosity, density, flow velocity, moisture content, vapor liquid ratio and the like); pouring/extraction sections of oil deposit can be adjusted automatically; self-adjusting and self-control of the oil deposit are achieved; and due to the fact that moving parts and control cables are omitted, reliability is high and the cost is low.
Owner:SICHUAN UNIVERSITY OF SCIENCE AND ENGINEERING

Energy management system for energy-storage-combined thermal power frequency modulation

The invention discloses an energy management system for energy-storage-combined thermal power frequency modulation. The energy management system comprises an energy management system and a data acquisition and monitoring system. The energy management system is composed of a hardware platform, an operating system platform, a universal middleware layer, a unified support platform layer and an application software layer. The data acquisition and monitoring system includes an operator control layer, a control layer and an in-place layer. Data acquisition and processing, energy distribution of an energy storage system, maintenance and management of an energy storage battery and man-machine interaction are realized in energy-storage-combined thermal power frequency modulation; a plurality of PCSs are controlled coordinately; the fast frequency modulation function is realized; a frequency modulation control device receives an external power instruction and a set instruction, calculates a total energy storage power instruction, and controls the overall output of the energy storage system so as to ensure the real-time performance and accuracy of the overall output power; and an energy storage coordination control device can carry out power distribution according to the SOC state of each battery pack and the battery maintenance condition, so that the performance state of each battery pack is balanced.
Owner:SHANGHAI YUYUAN POWER TECH CO LTD

Cathode material for lithium ion battery, preparation method of cathode material and lithium ion battery

The invention relates to the field of lithium batteries, and discloses a cathode material for a lithium ion battery, a preparation method of the cathode material, and a lithium ion battery. The methodcomprises the following steps: mixing a microcrystalline graphite powder and acid for hot dipping treatment and water washing to form a precursor a, ball-milling and mixing the precursor a, an adhesive agent, a catalyst and an assistant for briquetting to form a precursor b, sintering the precursor b in a shielding gas atmosphere, then performing high temperature graphitization to form a precursor c, crushing, balling and grading the precursor c to form a precursor d, hot-mixing the precursor d and a carbon source to form a precursor e, and performing high-temperature sintering and screeningon the precursor e in an inert atmosphere to form the cathode material for the lithium ion battery. With the adoption of the low carbon and high acidity microcrystalline graphite graphite powder, thetimes of pickling and water washing in a production process are reduced; with the adoption of a blending, briquetting and graphitization manner, a microcrystalline graphite structure is reformed and optimized; and an amorphous carbon material coating on the outermost layer improves initial coulomb efficiency of the material.
Owner:桑顿新能源科技(长沙)有限公司

Temperature sensing circuit and temperature sensor

A temperature sensing circuit and a temperature sensor. The temperature sensing circuit (21) comprises a first branch and a second branch, wherein the first branch and the second branch are respectively provided with at least one sampling point (1-8), the sampling points (1-8) are used for outputting a voltage signal, and the difference value between two voltage signals is used to characterize the temperature of an environment in which the temperature sensing circuit (21) is located. The temperature sensor (2) comprises the temperature sensing circuit (21), which is used for generating and outputting a voltage signal according to the temperature of an environment in which the temperature sensor (2) is located, an ADC conversion module (22), which is used for converting the voltage signal into a digital signal, and a processing module (23), which is used for processing the digital signal output by the ADC conversion module (22) and outputting a temperature value. By improving an output signal of a temperature sensing circuit, the intensity of an analogue signal output thereby is increased, thereby omitting an amplifier of a digital circuit part, and solving the problem in the prior art that an amplifier needs to be arranged in a digital circuit part of a temperature sensor.
Owner:SANECHIPS TECH CO LTD

Load connection identification circuit of switching power supply and multi-port charger

The invention discloses a load connection identification circuit of a switching power supply. The load connection identification circuit comprises a ripple detection circuit, a judgment circuit and acontrol circuit. Ripple signals of the output port of the switching power supply are detected in a coupling mode through the arrangement of the ripple detection circuit. Whether an output port is connected with a load or not can influence a ripple signal, the detection circuit detects ripple signals of the output port, so that the judgment circuit can judge whether the output port is connected with a load or not according to the detected ripple signals and outputs a judgment result to the control circuit, and the control circuit can recognize the load connection state of the output port and correspondingly control output of the switching power supply. According to the invention, the use of a current sampling resistor is avoided, the increase of heating points and system power loss can be avoided, and the system efficiency is improved. Moreover, the identification blind area of the output current is reduced, and the identification accuracy of load connection is improved. In addition, the invention further discloses a load connection identification circuit of the multi-port charger, and the load connection identification circuit also has the above beneficial effects.
Owner:BCD (SHANGHAI) MICRO ELECTRONICS LTD

Lithium recovery and extraction method

ActiveCN108611497ASimplify the extraction processAvoid Hydroxide PrecipitationProcess efficiency improvementSulfuric acidRadiochemistry
The invention provides a lithium recovery and extraction method. The method mainly comprises the steps that sulfuric acid is used for soaking powder of matter to be recovered, obtained impregnation liquid is filtered, and the pH is adjusted; solid alkali metal hydroxide is utilized for preparing a saponification organic solvent; and the impregnation liquid is added into the saponification organicsolvent, oscillation is performed, and then a water phase is collected. According to the method, the solid alkali metal hydroxide is utilized for obtaining the saponification organic solvent (an oil phase), accordingly, a large amount of alkali metal matter exists in the oil phase, when the water phase impregnation liquid with a certain pH value is added into the oil phase, the oil phase can be used for extracting a large amount of other elements while the lithium element is kept in the water phase, an existing lithium element extraction operation process is simplified, in addition, producingof a large amount of precipitation of hydroxide is avoided, accordingly, output of sludge is controlled, a container is kept clean, and the aftertreatment load is greatly reduced; and in addition, theremnant oil phase after the lithium element is extracted can also be used for further separating other elements through acid pickling, elements are recycled as much as possible, and meanwhile, the oil phase can be recycled.
Owner:合肥哈工安循环保科技有限公司

Automatic intelligent cooking equipment

The invention discloses automatic intelligent cooking equipment which comprises a liquid feeding device used for automatically outputting liquid seasoning; a paste feeding device used for automatically outputting paste seasoning; a powder seasoning feeding device used for automatically rotating and outputting powder seasoning; a translation feeding device used for sequentially outputting food materials; and a stir-frying device used for receiving and stir-frying the output food materials and seasoning. The paste feeding device, the translation feeding device and the powder seasoning feeding device are arranged to contain seasonings with different physical characteristics respectively, so that seasoning output control is more accurate, the automation level of the automatic cooking equipment is improved, full automation is achieved from food material and seasoning adding to stir-frying cooking, the cooking efficiency of the automatic cooking equipment is improved, the cooking equipment is particularly suitable for high-intensity cooking requirements in catering shops, full-automatic cooking can be achieved, accurate feeding can be conducted according to the divided seasoning feeding equipment, and the dish quality of the automatic cooking equipment is guaranteed.
Owner:众信智能科技深圳有限公司

Energy-saving type ultrathin tofu skin production process and device

PendingCN112088946AIncrease productivityEnergy saving and environmental protection dischargeCheese manufactureDrive motorEngineering
The invention discloses an energy-saving type ultrathin tofu skin production device. The energy-saving type ultrathin tofu skin production device comprises a bottom plate, wherein a U-shaped plate isfixedly connected to the top of the bottom plate; rotating rollers are separately arranged at positions, which are close to the left side and the right side, in the U-shaped plate; the front wall andthe rear wall of each rotating roller are separately movably connected with the inner wall of the U-shaped plate through a rotating shaft and a bearing; a conveying belt is in transmission connectionbetween the two rotating rollers; a driving motor is mounted at a position, which is close to the right side, of the top of the bottom plate; a first belt is in transmission connection between an output shaft of the driving motor and the rotating shaft of the rotating roller on the right side; and a pulping box is arranged at a position, which is close to the left side, above the conveying belt. AU-shaped pulping rod and a filter screen can be driven to rotate clockwise or anticlockwise in the pulping box, therefore, soybean milk in the pulping box can be uniformly pulped, meanwhile, a pulp guiding tube and a pulp spraying tube can be driven to slide rightwards or leftwards in the pulp guiding box, therefore, the soybean milk can be uniformly sprayed in the pulp guiding box, the purpose of saving time and labor is achieved, and the production efficiency of the energy-saving type ultrathin tofu skin production device can be improved effectively.
Owner:三亚江美食品有限公司

Double-pulse output method, device, electronic equipment and system

The invention provides a double-pulse output method, a double-pulse output device, electronic equipment and a double-pulse output system. In the double-pulse testing process, winding of the parallel inductor is completed, the inductance value of the parallel inductor is a fixed value, after a tested object is determined, the direct-current bus voltage in each test is also a fixed value, and the direct-current bus voltage in each test is determined according to the formula that the current of the power device=the direct-current bus voltage*the pulse opening time/the inductance value of the parallel inductor. The current of the power device is proportional to the pulse turn-on time (pulse width time), so that the maximum current value and the test pulse width time can be determined in the double-pulse pre-test process according to the proportional relation to obtain the proportional value, and then the target pulse width time is obtained through calculation according to the set target current. The first pulse width and the second pulse width are controlled to be output through the target pulse width time, so that the problems of high cost, low test precision and poor efficiency caused by manual pulse width adjustment during manual test of the wound inductor are solved.
Owner:NEW UNITED RAIL TRANSIT TECH

Design method of electro-permanent magnet rotor system based on rotor profile and magnetic field coupling

The invention provides a rotor profile type and magnetic field coupling based electric and permanent magnet rotor system design method. The rotor profile type and magnetic field coupling based electric and permanent magnet rotor system design method comprises the following steps of step 1, the rotor profile design; step 2, the magnetic field coupling rapid algorithm; step 3, the control method design of a driving mechanism. The rotor profile type and magnetic field coupling based electric and permanent magnet rotor system design method is a complete design scheme for an electric and permanent magnet rotor direct driving system, the initial rotor profile extends to the magnetic field calculation, and the feasible method for controlling the driving system is provided finally. According to the driving system design achieved by the rotor profile type and magnetic field coupling based electric and permanent magnet rotor system design method, the displacement, speed and acceleration output of the system can be directly determined through the control of the current and the annular current coil based permanent magnet magnetic field calculation mode is provided for the electromagnetism calculation and accordingly the multivariate solving can be rapidly performed in comparison with other electromagnetism commercial calculator software and the invested time cost required by the early design is greatly reduced.
Owner:SHANGHAI JIAO TONG UNIV
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