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42results about How to "Output more" patented technology
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Meteorological element data acquisition system suitable for small laboratories
PendingCN110427594AExtension of timeImprove spatial resolutionComplex mathematical operationsICT adaptationHigh performance computationFuture climate
The invention discloses a meteorological element data acquisition system suitable for a small laboratory. The system is composed of at least one high-performance computing platform, a data preprocessing system, a WRF numerical weather forecast mode, a data post-processing system and a database system. The high-performance computing hardware platform is innovatively provided to acquire meteorological data in an area lacking meteorological data and a coarse-resolution gridding meteorological data downscaling system. In a specific area required by a user, meteorological data variables required bythe user are output; grid meteorological data with high spatial-temporal resolution and high precision are made. Medium and long term city group scale high spatial resolution weather forecast is carried out, basic meteorological data can be provided for air pollution, land surface hydrological process, urban climate, urban traffic and other disciplines, and finer regional scale climate change data can be provided for future climate change scene estimation (CMIP5).
Owner:北京中科资环信息技术研究院
Power system voltage stability control method and system thereof
ActiveCN104124696AImprove stabilityLow costFlexible AC transmissionReactive power adjustment/elimination/compensationControl systemElectric power system
The invention provides a power system voltage stability control method and system. The number of actually should be invested MSC (Mechanical Switching Container) groups is decided based on an STATCOM (Static Synchronous Compensator) and the MSCs according to a reactive power requirement reference value and the rated reactive capacity of an SATCOM and the MSC and the output reactive capacity of the SATCOM is obtained according to a target parameter and the number of the MSC groups. If the reactive power required reference value provided by an automatic voltage control system is a voltage reference value, the reactive power required reference value can be converted into the reactive reference value through outer ring PI control and then capacity distribution composite control can be performed. When the reactive power requirement exceeds a composite output general reactive capacity range of the STATCOM and the MSCs, the reactive compensation capacity is invested farthest and the residual reactive power requirement is provided by a reactive-load compensation equipment of a nearby transformer substation. The power system voltage stability control method and system can improve the composite control stability and improve the STATCOM utilization efficiency.
Owner:GUANGZHOU POWER SUPPLY CO LTD +1
Radio frequency front-end device slave control interface device
PendingCN108449109AEasy to integrateSmall footprintTransmissionLogic circuit interface arrangementsControl signalMiniaturization
The invention discloses a radio frequency front-end device slave control interface device which is based on an MIPI RFFE v2.0 protocol and can be integrated on the whole chip. The radio frequency front-end device slave control interface device in the invention is built by adopting a digital logic unit and a basic circuit element, so that in-chip integration of a slave controller circuit can be easily realized; the slave controller can be integrated into a radio frequency front-end element piece; and only through three signal lines of VIO, SCLK and SDAT of an MIPI RFFE interface, flexible control of the radio frequency front-end element can be realized. The number of the output pins of the processor is small, so that the area of the printed circuit board occupied by the control signals is small; extra board-level components do not need to be used, so that the cost required by implementing the radio frequency front-end device slave control interface device is low, the occupied equipmentspace is small, and miniaturization and low-cost design of the mobile equipment are facilitated; and the radio frequency front-end device slave control interface device is extremely suitable for control of various radio frequency front-end devices in the mobile industry.
Owner:成都通量科技有限公司
Split type heat-pump water heater and water supply control method thereof
The invention discloses a split type heat-pump water heater and a water supply control method thereof. The split type heat-pump water heater comprises a heat-pump main engine and a water tank, a condenser is arranged in the water tank, the heat-pump main engine is connected with the condenser through a connection pipe and provided with a controller, the lower portion of the water tank is provided with a cold water inlet, a temperature sensor and a hot water outlet, the temperature sensor is located above the cold water inlet, and the hot water outlet is located above the temperature sensor. The water temperature T in the water tank is obtained and compared with a shutting-down temperature T0 and a starting-up temperature equal to the difference value between T0 and delta T0 of the heat-pump main engine, wherein the delta T0 is smaller than T0, and delta T0 is the starting-up and shutting-down temperature difference value of the heat-pump main engine, so that the heat-pump main engine is shut down when T is greater than or equal to T0, and the heat-pump main engine is started when T is less than or equal to the difference value between T0 and delta T0. According to the split type heat-pump water heater and the water supply control method thereof, hot water supply is increased effectively, and the equipment failure rate is reduced.
Owner:东莞市康源节能科技有限公司
Trans-critical carbon dioxide power generation system and method driven by solar energy and geothermal energy
ActiveCN112502925ARealize joint power generationOutput moreFrom solar energyGeothermal systemsEngineeringAtmospheric sciences
The invention discloses a trans-critical carbon dioxide power generation system and method driven by solar energy and geothermal energy. The trans-critical carbon dioxide power generation system driven by solar energy and geothermal energy comprises a solar sub system, a geothermal energy sub system and a trans-critical carbon dioxide circulating sub system, wherein the solar sub system is in coupling connection to the trans-critical carbon dioxide circulating sub system through a solar heater; the solar sub system is in coupling connection to the geothermal energy sub system; the geothermal energy sub system is in coupling connection to the trans-critical carbon dioxide circulating sub system through a geothermal energy heater and a low-temperature reheater / heater; a first control valve group is connected on the solar heater; a second control valve group is connected on a heat exchanger; and a third control valve group is mounted between the geothermal energy heater and the heat exchanger to switch a power generation mode. The trans-critical carbon dioxide power generation system can make up defects of solar energy and geothermal energy, and improves operation efficiency.
Owner:CENT SOUTH UNIV
Liquid crystal display panel, display device and working method
ActiveCN109031768AImprove transmittanceIncrease display brightnessNon-linear opticsTransmittanceLiquid-crystal display
The invention provides a liquid crystal display panel, a display device and a working method, and belongs to the technical field of display. Each pixel region of the liquid crystal display panel comprises a first sub-pixel region and a second sub-pixel region; and each pixel region comprises a light valve, a double refraction structure, first liquid crystal unit, a first filtering unit, a second liquid crystal unit and a second filtering unit, wherein the light valve can be switched between a first state and a second state; in the first state, the light valve only allows incident first polarized light in a first polarization direction to pass through; in the second state, the light valve only allows incident second polarized light in a second polarization direction to pass through; the double refraction structure does not change an emergent path of the vertically incident first polarized light and can enable an emergent path of the vertically incident second polarized light to be shifted; the first liquid crystal unit directly faces a light outlet of the light valve; and the second liquid crystal unit is positioned on the emergent path of the second polarized light. According to the invention, transmittance and contrast of the display device can be improved in a case of not increasing power consumption.
Owner:BOE TECH GRP CO LTD
Method using PWM manner to control USB PD system to output voltage
The invention discloses methods for controlling a USB PD system to output voltage and particularly relates to a method using as PWM manner to control the USB PD system to output the voltage. The method is characterized in that a first electronic product system and a second electronic product system adopt USB Type-C interfaces and support PD protocols, the first electronic product system and the second electronic product system are provided with power control systems inside, and each power control system comprises a PWM generator, a filter network and a DC / DC chip. The method has the advantages that different voltage output can be controlled by the output of one PWM signal, more control signals are not needed, more switching-controlling devices such as MOSFET are not needed, the area of a PCB is reduced greatly, voltage output can be regulated only by regulating the frequency of the PWM signal, and more voltage output can be supported by software-controlled upgrading.
Owner:威海优微科技有限公司
Spinning yarn lubricating device
The invention relates to the field of spinning, in particular to a spinning yarn lubricating device; and the device can effectively solve the problem of not timely lubrication of spinning yarns, and is convenient to close an oil injecting nozzle at any time. The spinning yarn lubricating device comprises a flat plate; support legs are arranged at the bottom of the flat plate; multiple first through holes for penetrating through the spinning yarns are transversely formed in the flat plate; the flat plate is vertically provided with second through holes communicated with the first through holes; oil injecting pipes are arranged in the second through holes; connecting rods are arranged on the left sides of the oil injecting pipes, and are connected with the side surfaces of the connecting rods at the middle parts through hinge shafts; stoppers are transversely fixed at the upper ends of the connecting rods, and extend into the oil injecting pipes through third through holes; brushes matched with the spinning yarns are arranged at the lower ends of the connecting rods; and torsion springs are arranged on the hinge shafts. The spinning yarn lubricating device is simple in operation, convenient for use and suitable for lubrication of multiple spinning goods.
Owner:WUJIANG WANMENG TEXTILE
Anesthetic evaporator
The invention discloses an anesthetic evaporator which comprises an evaporation chamber. The anesthetic evaporator is characterized in that the anesthetic evaporator has three stations and comprises a three-station switching device, the three stations include a concentration station, a zero station and a transportation station, and the concentration station is used for regulating the concentration of anesthetic steam outputted by the anesthetic evaporator; the evaporation chamber can be communicated with an external environment via the zero station when the anesthetic evaporator is in a non-working state; the evaporation chamber can form a closed space under the effect of the transportation station; the three-station switching device is used for switching the anesthetic evaporator at the transportation station to the concentration station via the zero station. The anesthetic evaporator has the advantages that a valve plate of a concentration regulating valve rotates relative to a valve seat, so that the three stations can be switched over, and the problem that the internal evaporation pressure of an existing evaporation chamber cannot be effectively relieved when an existing evaporator does not have a transportation station and a zero station can be effectively solved on the premise that the quantity of components is not increased and the cost is saved.
Owner:BEIJING AEONMED
Power cycle output method and system for absorbing heat energy from air
InactiveCN106286173AMeet the protection requirementsThe need to realize unlimited use of clean energySteam engine plantsMechanical power devicesThermal energyPower cycle
The invention discloses a power cycle output method and system for absorbing heat energy from air. An A gas saturation and storage device, a condensation nucleus generation device, a positive work output device, a gas-liquid separation device, an A liquid heat exchange device, an air heat exchange device, an A gas and B liquid mixing device, a negative work input device and an A gas and B liquid separation device are respectively arranged, so that three cycles are performed in normal operation and include an A saturated gas cycle, an A liquid cycle and a B liquid cycle respectively, and the working process is a three-cycle working process. By a heat exchange mode, the air can be cooled, the heat energy of air molecules is absorbed, inexhaustible air internal energy is directly used as an energy source, and the sun ceaselessly supplements the air internal energy every day, the possibility of exhaustion of energy sources is avoided, so that the requirement of humans for unrestricted use of clean energy is met while environmental protection requirements are met.
Owner:符海龙
Energy-saving system applied to sludge treatment and disposal
InactiveCN102515462AOutput moreEfficient use ofSludge treatment by de-watering/drying/thickeningHeat recovery systemsHeat conductingSludge
The invention relates to the field of energy-saving environment protection, in particular to an energy-saving system applied to sludge treatment and disposal. According to the invention, aiming at solving problems of large waste water discharge, large heat waste, lower system integral heat utilization efficiency and the like in the traditional sludge heat drying waste vapor treatment system, low temperature waste heat in a waste condensed fluid is recycled by using a lithium bromide absorbing type heat pump unit, medium temperature heat source which can be used by sludge digestion tank is output, and the heating vapor or heat conducting oil of a sludge heat drying machine is used as a driving heat source of the lithium bromide absorbing type heat pump unit; meanwhile, a circulating cooling water pump is arranged to reduce the waste water discharge. According to the invention, in the whole sludge heat drying treatment process, a large quantity of low temperature heat discharged with the waste condensed fluid are recycled by using a small quantity of high temperature heat sources so that the waste heat utilization efficiency of the system is increased and the energy consumption and waste water discharge in the whole sludge treatment and disposal process are reduced; therefore, the whole operation cost is saved.
Owner:BEIJING LONDIAN HONGTAI ENVIRONMENTAL TECH
Temperature control valve, control method thereof and medical volatilizer comprising same
The invention discloses a temperature control valve which comprises a tank and a cover plate. A gas passage capable of containing gas is formed between the tank and the cover plate, and a temperature control component capable of sensing temperature changing to adjust opening degree of the gas passage. The invention further discloses a medical volatilizer which comprises a volatilizing chamber. The temperature control valve is fixedly mounted at the bottom of the volatilizing chamber. The temperature control valve is disposed at the bottom of the volatilizing chamber to enable a position above the temperature control valve to be immersed by anesthetic, the temperature control valve can sense temperature changing of the anesthetic more quickly and more accurately, the temperature control component in the temperature control valve can be utilized to enable the opening degree of the gas passage to correspondingly change according to temperature changing of the anesthetic in real time, in other words, when the anesthetic is high in temperature, anesthetic steam concentration in the volatilizing chamber is high, the gas passage is large in opening degree, and a lot of fresh gas is output, otherwise, little fresh gas is output, and finally concentration of mixed anesthetic steam output by the volatilizer is enabled to be unchanged no matter how temperature of the anesthetic changes.
Owner:BEIJING AEONMED
Elevator trapped person detection method based on computer vision
ActiveCN112573316AReduce incidenceImprove safety and passenger satisfactionElevatorsBuilding liftsPassenger satisfactionAutomotive engineering
The invention discloses an elevator trapped person detection method based on computer vision. The method comprises the following steps that S1, an elevator scene video is collected through a camera ofan elevator car; S2, whether closing duration of an elevator door of the elevator car exceeds a set threshold value or not is judged, if yes, the step S3 is executed, and if not, the step S1 is executed again; S3, a convolutional neural network model for the elevator scene video is constructed; and S4, the number of people in the elevator scene video is identified by using the convolutional neural network model, and a number result of people in the elevator car is fed back to a monitoring center. According to the elevator trapped person detection method based on the computer vision, the elevator trapped situation can be found in time, so that elevator safety and passenger satisfaction are improved, and the elevator taking safety is guaranteed; compared with a traditional method, the elevator trapped person detection method has the advantages that the two models are constructed to effectively recognize door opening and closing of the elevator car and the number of people in an elevator, more accurate elevator information can be provided, and a better reference effect is achieved for maintenance personnel and the monitoring center.
Owner:成都睿瞳科技有限责任公司
Uniform gas supply device for vapor deposition furnace, and vapor deposition furnace
ActiveCN109423623AExquisite designGuaranteed uniformityChemical vapor deposition coatingProcess engineeringAirflow
The invention discloses a uniform gas supply device for a vapor deposition furnace, and the vapor deposition furnace. The uniform gas supply device for the vapor deposition furnace comprises one or more T-shaped gas uniformizing pipelines, and the directions of gas outlet holes of the gas uniformizing pipelines are opposite to the ascending direction of reactive gas, and the gas outlet holes are back on to workpieces. According to the uniform gas supply device for the vapor deposition furnace, design is ingenious, by setting the directions of the gas outlet holes, the reactive gas can be gradually spread to the workpiece area after flowing out, the problems that when one gas outlet supplies gas to the workpieces directly, gas flow impact is prone to being caused, the reactive gas is proneto being concentrated in a certain area, and consequently the reactive gas is distributed nonuniformly are avoided, the supplying uniformity of the reactive gas can be ensured, and the quality of filmdeposition is improved advantageously.
Owner:SUZHOU SICREAT NANOTECH CO LTD
Self-cleaning sunlight tracking solar power generation device
ActiveCN113067540ASimple structureReduce energy consumptionPhotovoltaic supportsSolar heating energyGeneration rateSolar power
The invention discloses a self-cleaning sunlight tracking solar power generation device, and relates to the field of clean energy and energy conversion. The device comprises a solar panel, a mounting base, a self-cleaning mechanism and a sunlight tracking mechanism, wherein the self-cleaning mechanism comprises a cleaning rod, a universal transmission part and a rotary transmission rod; the cleaning rod is located on the upper surface of the solar panel; the rotary transmission rod is arranged on the back face of the solar panel, and the upper end of the rotary transmission rod penetrates through the center of the solar panel through the universal transmission part to be connected with the middle of the cleaning rod; the lower end of the rotary transmission rod is connected with an S-shaped baffle; an arc-shaped section matched with the S-shaped baffle is arranged on the mounting base; and when the S-shaped baffle passes through the arc-shaped section, the S-shaped baffle rotates under the limiting action of a short blocking rod and a long blocking rod, and therefore the cleaning rod is driven to rotate. The self-cleaning mechanism can rotate automatically along with the swing angle of the solar panel, so that self-cleaning power energy is saved, energy consumption of the solar power generation device is reduced, and the overall energy generation rate is increased.
Owner:四川优尼柯环保科技有限公司
Switch energy storage structure and rotary electrical switch
InactiveCN113488344AReduce volumeOutput moreSwitch power arrangementsPhotovoltaic energy generationElectrical conductorStructural engineering
The invention discloses a switch energy storage structure and a rotary electrical switch, an energy storage assembly comprises a driving turntable, a rotating seat and an energy storage element arranged in the rotating seat which are sequentially arranged from top to bottom, the rotary electrical switch comprises a shell cover and a multi-layer shell arranged at the bottom of the shell cover, and the interior of the device is divided into multiple layers of mounting cavities by the multi-layer shell; an energy storage assembly and a conductive assembly are arranged in the multiple layers of mounting cavities from top to bottom, the overall size of the switch is small, due to the small size, the size of an inverter is reduced or more lines are output under the same size, and in each implementation mode, the conductive assembly is arranged to be in different bending modes to become the key to meet the requirement for the small size; the projection areas of the conductive turntable and the moving contact rotating plane are overlapped with the input / output wiring conductor, so that the diameter is saved; terminals are arranged in a cross-layer mode, and floor height is saved; and the input side wires and the output side wires are arranged on the same straight line, so that a user can arrange other components on the upper side and the lower side of a wiring plane, and the utilization rate of adjacent spaces is improved.
Owner:BEIJING GUANGHUA SHITONG TECH
Rapid analysis method based on OrthoMCL clustering result
The invention discloses a rapid analysis method based on an OrthoMCL clustering result, and belongs to the field of comparative genomics and bioinformatics. The method is based on an OrthoMCL clustering result and comprises the steps of: establishing automatic identification of various proteins in generic analysis, including all representative proteins, core proteins, single-copy core proteins andspecies-specific proteins; based on the respective classification of the proteins, counting the number of the classified proteins existing in the respective species, and outputting the result according to the category. The method achieves output of representative sequences of proteins in various classifications and output of representative sequences of various proteins in each species. In addition, according to the method, protein homologous clustering results are output according to the sequence corresponding to each homologous protein, and a foundation is laid for achieving higher-level personalized analysis in generic analysis.
Owner:ANHUI MEDICAL UNIV
A solar panel automatic tracking device
InactiveCN103488187BReasonable structural designLow costControl using feedbackCells panelEnvironmental effect
The invention discloses a solar cell panel automatic tracking device. The solar cell panel automatic tracking device comprises a fixed support (1), a fixed platform (2) and a supporting platform (3). The fixed platform (2) is installed in the middle of the fixed support (1), the supporting platform (3) is installed on the fixed platform (2), and a universal joint (4) is connected to the supporting platform (3). A cell panel tray (5) is installed on the supporting platform (3) through the universal joint (4), and four hinges are installed on the reverse side of the cell panel tray (5) and are respectively installed on four top points of a square of which the center is the gravity center of the solar cell panel tray (5). Guide wheels (7), tension wheels (8) and stepping motors (9) are installed on the upper surface and the lower surface of the fixed support (2) respectively. The automatic tracking device is high in flexibility and tracking accuracy, wide in tracking range and high in effective generating capacity, can achieve omnibearing solar tracking, can be applied to large solar photovoltaic power stations, and has good economic benefits and environmental effects.
Owner:深圳市启建时代科技有限公司
Lubricating device for textile thread
The invention relates to the field of spinning, in particular to a spinning yarn lubricating device; and the device can effectively solve the problem of not timely lubrication of spinning yarns, and is convenient to close an oil injecting nozzle at any time. The spinning yarn lubricating device comprises a flat plate; support legs are arranged at the bottom of the flat plate; multiple first through holes for penetrating through the spinning yarns are transversely formed in the flat plate; the flat plate is vertically provided with second through holes communicated with the first through holes; oil injecting pipes are arranged in the second through holes; connecting rods are arranged on the left sides of the oil injecting pipes, and are connected with the side surfaces of the connecting rods at the middle parts through hinge shafts; stoppers are transversely fixed at the upper ends of the connecting rods, and extend into the oil injecting pipes through third through holes; brushes matched with the spinning yarns are arranged at the lower ends of the connecting rods; and torsion springs are arranged on the hinge shafts. The spinning yarn lubricating device is simple in operation, convenient for use and suitable for lubrication of multiple spinning goods.
Owner:WUJIANG WANMENG TEXTILE
Hybrid propulsion architecture for an aircraft comprising a motor with two reversible electric machines mounted on two shafts
ActiveCN110636971AImprove performanceWithout compromising operabilityEfficient propulsion technologiesGas turbine plantsElectric machineFlight vehicle
The aircraft motor architecture comprises two reversible electric machines (3, 4), the rotors (10) of which are linked both to the low pressure shaft (1) and to the high pressure shaft (2) by transmissions (11, 12, 13, 14) alternately disengaged depending on the direction of rotation of the rotor (10), the transmissions comprising passive one-way clutches (15, 16, 17, 18), the engagement directions of which are opposed. Independent modes of operation of the machines, as a starter or as an electric generator of each of the shafts, are thus provided.
Owner:SAFRAN
anesthesia vaporizer
The invention discloses an anesthetic evaporator which comprises an evaporation chamber. The anesthetic evaporator is characterized in that the anesthetic evaporator has three stations and comprises a three-station switching device, the three stations include a concentration station, a zero station and a transportation station, and the concentration station is used for regulating the concentration of anesthetic steam outputted by the anesthetic evaporator; the evaporation chamber can be communicated with an external environment via the zero station when the anesthetic evaporator is in a non-working state; the evaporation chamber can form a closed space under the effect of the transportation station; the three-station switching device is used for switching the anesthetic evaporator at the transportation station to the concentration station via the zero station. The anesthetic evaporator has the advantages that a valve plate of a concentration regulating valve rotates relative to a valve seat, so that the three stations can be switched over, and the problem that the internal evaporation pressure of an existing evaporation chamber cannot be effectively relieved when an existing evaporator does not have a transportation station and a zero station can be effectively solved on the premise that the quantity of components is not increased and the cost is saved.
Owner:BEIJING AEONMED
An energy-saving organic heat carrier dynamic heat energy intelligent distribution system
ActiveCN103822356BRealize the detection functionRealize the adjustment functionStorage heatersThermal energyHeat carrier
The invention relates to a heating supply system and provides an energy-saving organic heat carrier dynamic heat energy intelligent distribution system which has the advantages of being capable of carrying out intelligent and dynamic heat energy distribution, safe in running of a boiler and pipelines, stable in heating supply performance, good in energy-saving effect and high in heat energy utilization rate. The system comprises an organic heat carrier boiler, a heat transfer oil circulation power unit, a heat transfer oil delivery pipeline network, a heat transfer oil return pipeline network, an electric three-way regulating valve, an expansion buffer tank, a PLC, an oil pump running detection device and a plurality of pipeline running detection devices. Main delivery pipelines of the heat transfer oil delivery pipeline network, branch delivery pipelines of the heat transfer oil delivery pipeline network, main oil return pipelines of the heat transfer oil return pipeline network and branch oil return pipelines of the heat transfer oil return pipeline network are all provided with the pipeline running detection devices. The oil pump running detection device is arranged on the heat transfer oil circulation power unit. The PLC is connected with the heat transfer oil circulation power unit, the electric three-way regulating valve, the oil pump running detection device and the pipeline running detection devices respectively.
Owner:福建凯弘节能环保科技有限公司
Attitude sensing equipment and positioning method thereof and method for controlling mouse pointer
ActiveCN102289305BQuick fixAvoid complexityInput/output for user-computer interactionGraph readingControl theoryComputer science
Owner:JIANGSU HUITONG GRP
mechanical energy engine
ActiveCN103511586BOutput moreReasonable structureGearingReciprocating piston enginesCylindrical channelGear wheel
A mechanical energy engine. A piston sliding ring (15) fits an inner-circumferential wall surface of a cylindrical channel in a dynamic seal manner. Two pistons (18) are connected to each other through a pair of connecting rods, two ends of the rod body of either connecting rod (14) pass into the body of a corresponding piston (18) through a rear-side end surface of the piston, respectively, so as to leave a gap between the two pistons (18). A middle rod body, located between two pistons, of either connecting rod (14) is fixedly mounted with a spring (13) disposed outside the piston (18), and both end rod bodies, that pass inside the corresponding piston (18), of the connecting rod (14) are also fixedly mounted with a spring (13) disposed inside the corresponding piston. When a belt pulley (2) is driven by an external force to rotate to drive rotation of four secondary crankshafts and drive rotation of a primary crankshaft (6) through three synchronous gears (4, 7, 8), the planes where crankpins (10) of two secondary crankshafts in each row are located are correspondingly parallel to a plane where a crankpin (10) of the primary crankshaft (6) is located, respectively.
Owner:喻名伟
Space vector pulse width modulation method and device
ActiveCN106788121AHigh frequencyOutput moreAC motor controlElectric motor controlTriangular wavePhysics
The invention discloses a space vector pulse width modulation method. The method comprises the following steps of obtaining a triangular wave signal, a three-phase voltage signal to be modulated, and a current rotor angle of a motor; generating a corresponding first comparison value based on the current rotor angle of the motor and the respective current amplitude of the three-phase voltage signal when the triangular wave signal is detected to travel from the trough to the crest, and based on the first comparison value and the current amplitude of a triangular wave, obtaining a corresponding current level; and when the triangular wave signal is detected to travel from the crest to the trough, generating a corresponding second comparison value according to the current rotor angle of the motor and the respective current amplitude of the three-phase voltage signal, and according to the second comparison value and the current amplitude of the triangular wave, obtaining a corresponding current level, wherein the first comparison value is different from the second comparison value. The invention also discloses a space vector pulse width modulation device. The method and the device can modulate and output pulse width modulation waves effectively approaching sine waves.
Owner:GUANGZHOU SHIYUAN ELECTRONICS CO LTD
Air conditioner and its troubleshooting method, device and system, and remote server
ActiveCN105387561BSolve limited problemsOutput moreMechanical apparatusSpace heating and ventilation safety systemsReliability engineeringFault treatment
Owner:GREE ELECTRIC APPLIANCES INC
A wind-induced vibration piezoelectric energy harvesting device
ActiveCN106382191BBig vibrationOutput morePiezoelectric/electrostriction/magnetostriction machinesWind motor combinationsElectricityPiezoelectric cantilever
Owner:SHANGHAI UNIV
multifunctional toilet
The invention discloses a multifunctional toilet cleaning device which comprises: a toilet cleaning plate fixed between a toilet ring and a toilet, wherein a water outlet rod is arranged on the toiletcleaning plate, a water spraying opening is formed in the water outlet rod, the water outlet rod is communicated with a toilet cleaning water inlet through a toilet cleaning pipeline, the toilet cleaning water inlet is fixed to the edge of the toilet cleaning plate, and the toilet cleaning pipeline is arranged in an interlayer of the toilet cleaning plate; a water heater, wherein the water heater is provided with a handle, a water pipe is fixed in the handle and communicated with the water heater through a hose, the water pipe can be inserted into the toilet cleaning water inlet, and a wateroutlet switch is fixed on the handle; when the water pipe is inserted into the toilet cleaning water inlet, the water outlet switch is turned on, and the water injection nozzle can output hot waterfor cleaning after defecation. When the water pipe is not inserted into the toilet cleaning water inlet and the handle is held by hand to open the water outlet switch, the water pipe can directly output hot water. The multifunctional toilet cleaning device has the advantages of being simple in structure, low in cost, convenient to use, multifunctional and multipurpose.
Owner:浙江夏品工贸有限公司
Packaging structure for high-efficiency and energy-saving reflective focused type solar power generation device
InactiveCN101771094AImprove photoelectric conversion efficiencyHigh thermal conductivityPhotovoltaicsPhotovoltaic energy generationPhysicsUtilization factor
The invention relates to a packaging structure for a high-efficiency and energy-saving reflective focused type solar power generation device. The packaging structure comprises a solar power generation chip which is arranged on a reflective substrate; a focusing lens is capped on the power generation chip, and silica gel is arranged between the focusing lens and the reflective substrate; the reflective substrate is provided with a groove corresponding to the other end where the power generation chip is arranged; the reflective substrate carries out total reflection on lights that enter into the reflective substrate to the surface contacted with the power generation chip by utilizing the groove and lateral walls at two sides of the groove; fixed brackets are arranged at two ends of the focusing lens and the reflective substrate, conducting electrodes which are fixedly connected are arranged in the fixed brackets and electrically connected with the power generation chip; and conducting pins which are fixedly connected are arranged on the fixed brackets and electrically connected with the conducting electrodes. The invention has favorable heat conductivity and light transmission, utilization ratio increase of lights, low cost, long service life as well as convenient installation and use.
Owner:王海军
Electricity transmission device realizing wind-light-gas multi-level and multi-energy integration
InactiveCN110872911AEasy to pack and transportChanging the energy landscapePV power plantsTowersLightning rodEnergy integration
The invention relates to an electricity transmission device realizing wind-light-gas multi-level and multi-energy integration. A main structure of the electricity transmission device realizing wind-light-gas multi-level and multi-energy integration comprises structures such as a tower pole, two triangular thin film solar panels, a spherical power generation device, a wind power generator, an energy storage device and a lightning rod. The electricity transmission device realizing wind-light-gas multi-level and multi-energy integration is characterized in that the diameter of the tower pole is 0.5 m, and the height of the tower pole is 25 m; the maximum diameter of the tower pole is 5 m, and the maximum height of the tower pole is 120 m; an inner hole of the tower pole is a cavity body; thetwo triangular thin film solar panels are arranged on the tower pole; structures such as the wind power generator and the energy storage device are arranged on the tower pole; 80 percent or more of wind resources can be captured; the all-weather and multi-directional distribution electricity use and islet offshore use are realized; the installation and the transportation are convenient; and the electricity transmission device belongs to a novel energy source device thoroughly replacing conventional wind power and photoelectricity.
Owner:许少君
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