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52results about How to "Continuous smooth output" patented technology

Star sensor autonomous navigation method suitable for high maneuvering carrier

InactiveCN103791902AAvoid calculation timeout or pose lossImprove reliabilityNavigation by astronomical meansStar sensorMarine navigation
The invention discloses a star sensor autonomous navigation method suitable for a high maneuvering carrier, relates to the technical field of celestial navigation, and solves the disadvantage in the prior art that a star sensor adopts the autonomous navigation of the high maneuvering carrier. The star sensor autonomous navigation method comprises the steps of firstly enabling the star sensor to recognize a capture initial posture by adopting an all-day autonomous star map, then recognizing the original pointing partial star map by utilizing initial attitude information, and calculating the posture to obtain a moving angle speed; combining the prior information obtained in the first and second steps, forecasting the posture and the star point position of the next sampling time, and rapidly forecasting the tracking recognizing mode; calculating a three-axis posture angle of the star sensor in an inertial frame according to a recognizing result, and finally calculating the three-axis posture angle of the carrier according to a matrix of the star sensor arranged on the carrier, thus finishing the independent navigation of the carrier. The star sensor autonomous navigation method provided by the invention has the characteristics that the realization is simple, and the continuous, high precision navigation data and the like are autonomously provided for the high maneuvering carrier.
Owner:CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI

Air negative electrode for microbial fuel cell and preparation method for air negative electrode

The invention provides an air negative electrode for a microbial fuel cell. The air negative electrode is formed by combining a protective layer, a catalytic layer and a diffusion layer, wherein the protective layer has a porous nano-fiber structure, and is prepared from an inert high polymer material or a high polymer material with ionic conduction capability by using an electrospinning technology; the porous nano-fiber structure has a pore size of 50 to 10000nm and porosity of 50 to 90 percent; the protective layer is 50nm to 1mm thick. According to the air negative electrode, the size and distribution of pores of the protective layer can be controlled to enable ions and water to freely penetrate through the protective layer and disable microbes to penetrate through the protective layer; the protective layer also has a function of fixing the catalytic layer, hydraulic shearing force can be used for removing the microbes attached to the surface of the air negative electrode in a stirring or external circulation pump way in a positive electrode chamber during the running of the microbial fuel cell, and solution ionic conduction is promoted to keep pH in the vicinity of a positive electrode and the negative electrode neutral; a spinning technology is used for electrode preparation, and a process is simple, high in reproducibility and favorable for the broadening of electrode preparation.
Owner:WUHAN UNIV

Data playback device based on FIFO (First In, First Out) caching structure

The invention discloses a data playback device based on an FIFO (First In, First Out) caching structure and belongs to the technical field of analog output. The data playback device comprises a storage device, a control platform, a data buffering area FIFO and a digital analog converter, wherein the storage device is connected with the control platform through a bus BUS0; the control platform is connected with the data buffering area FIFO through a bus BUS1; the data buffering area FIFO is connected with the digital analog converter through a bus BUS2; a test data is stored in the storage device; the control platform is provided with an external input port and can read and output the test data according to a preset control flow; an input data bit width of the data buffering area FIFO is set as being more than an output data bit width; an active restriction for full-state identification in the FIFO is set; the digital analog converter is used for receiving the test data from the data buffering area, performing digital analog conversion on the test data and outputting an analog signal; and Bus0 rate* Bus0 valid bit width is more than or equal to Bus1 rate* Bus1 valid bit width which is more than Bus2 rate* Bus2 valid bit width. The data playback device is suitable for the playback of a large amount of test data.
Owner:BEIJING AEROSPACE MEASUREMENT & CONTROL TECH

High-power neutral electrolyte metal-air battery system and using method thereof

The invention relates to a high-power neutral electrolyte metal-air battery system and a using method thereof. The battery system comprises two or a plurality of basic cell units connected in series or in parallel, an electrolyte filtering box, a circulating pump, a control valve, an electrolyte input distributor, an electrolyte discharge manifold, a drain valve, an electrolyte overflow manifold,a control circuit, a controller, a connecting pipeline and the like. Each basic cell unit consists of a reaction box, an anode, a cathode, electrolyte, a cathode busbar and an anode busbar; and an electrolyte input port, an electrolyte discharge port and an electrolyte overflow exhaust port are formed at both sides of the reaction box. The electrolyte is neutral liquid, such as salt water, seawater and the like. The electrolyte of each basic cell unit is communicated with each other without using an electrolyte isolator. The high-power neutral electrolyte metal-air battery system and the usingmethod thereof, which are disclosed by the invention, are applicable to the high-power power utilization requirements and have the characteristics that after the anodes are used up, the anodes can bereplaced so as to reuse the high-power neutral electrolyte metal-air battery system; the high-power neutral electrolyte metal-air battery system can be stored for long time in a safe and maintenance-free mode, and is simple to start up and use; a load can be cut off at any time; the high-power neutral electrolyte metal-air battery system and the using method thereof have no pollution to the environment; and reaction precipitates can be recovered and recycled.
Owner:IMAY DESIGN

Energy-saving variable frequency electromagnetic heating steamer

The invention discloses an energy-saving variable frequency electromagnetic heating steamer which comprises a water storage tank, a heat dissipator, a cooling circulating water pump, a high pressure water pump, a water inlet pipe, a water return pipe, a steam tank and a controller, wherein the controller comprises a power module, a control circuit board and a frequency converter. A single or a plurality of electromagnetic induction heaters connected in parallel or in series communicate between the water inlet pipe and the steam tank, the water inlet pipe communicates to the steam tank throughthe water return pipe, the water storage tank is connected to an external tap water pipe through a water inlet electromagnetic valve to supplement water, the water outlet of the water storage tank isconnected to the water inlet pipe through the high pressure water pump, the water outlet of the water storage tank is connected to an inlet of the heat dissipator through the cooling circulating waterpump, an outlet of the heat dissipator is connected to the water storage tank and the frequency converter clings to a heat dissipating face of the heat dissipator. An electromagnetic coil is electrified to electromagnetically heat a water flow and circulating cooling water is introduced to the heat dissipator to dissipate head of the frequency converter, and an electronic heating part is cooled and dissipated while the cold water is preheated, so that electric energy is utilized fully, and the energy-saving variable frequency electromagnetic heating steamer is high in steam generation speed and clean and sanitary.
Owner:SHENZHEN DONGTE ENG EQUIP CO LTD

Element mercury and divalent mercury standard gas generation system and working method thereof

The invention discloses an element mercury and divalent mercury standard gas generation system and a working method thereof, and belongs to the technical field of gaseous mercury monitoring and analysis. A first inlet of a siphon type tee joint is connected with a low-temperature end of a gradient evaporation chamber, a high-temperature end of the gradient evaporation chamber is connected with thetee joint through a carrier gas pipeline, and the tee joint is further connected with a second inlet and a preheater; the preheater is connected with a flow valve, the flow valve is connected with afilter, and the filter is connected with a nitrogen storage device; an outlet is connected with two branches, a reduction reactor and an elemental mercury standard gas control valve are arranged on one branch, and a divalent mercury standard gas control valve is arranged on the other branch; and a heating module is arranged outside the gradient evaporation chamber, the gradient evaporation chamberis connected with a liquid inlet device, the liquid inlet device is connected with a stop valve, the stop valve is connected with a pump, and the pump is connected with a mercuric chloride standard liquid storage device. The structure design is reasonable, stable output of mercury standard gas concentrations of different valence states is achieved, and accuracy of mercury and mercury compound detection equipment checking and related scientific tests is guaranteed.
Owner:HUANENG POWER INTERNATIONAL +1

Miniature portable multifunctional wireless body feeling capture control system

The invention discloses a miniature portable multifunctional wireless body feeling capture control system which consists of a wireless body feeling capture control end and a wireless receiving end. The wireless body feeling capture control end comprises a data and charging interface, an electrostatic discharge protection module, an interface integration main processor unit, a body feeling processing module, a left proximity switch, a right proximity switch, an elastic sliding switch, a display module, a charging and power management module, a wireless receiving and emitting module, a 3-axis gyroscope, a 3-axis accelerometer, a 3-axis magnetometer and a temperature sensor; and the wireless receiving end comprises a data interface, an electrostatic discharge protection module, an interface integration main processor unit and an wireless receiving and emitting module. The miniature portable multifunctional wireless body feeling capture control system has the advantages that reference axes of the 3-axis gyroscope, the 3-axis accelerometer and the 3-axis magnetometer are subjected to accurate matching, so that the system can perform accurate capture on a body feeling action; and because a traditional light emission and receiving principle is not depended on and mechanical keys are not adopted, limo limit and palm occupation are reduced in use.
Owner:王大鹏 +2

Variable frequency electromagnetic heating steam engine and scale detecting method

The invention provides a variable frequency electromagnetic heating steam engine, which comprises a water storage tank, a radiator, a cooling water pump, a high-pressure water injection pump, a waterinlet pipe and a steam tank. One end of the water storage tank is connected with an external tap water pipe through a water inlet electromagnetic valve, and the other end of the water storage tank conveys cold water in the water storage tank to the water inlet pipe through the high-pressure water injection pump. A water outlet is formed in the upper end of the water inlet pipe. One or more electromagnetic induction heaters connected in parallel or in series are communicated between the water outlet and the steam tank. The variable frequency electromagnetic heating steam engine further comprises a frequency converter, a current detection device and a control board. The current detection device is used for collecting current signals of lines at an input end of the frequency converter and transmitting the current signals to the control board. The invention further provides a scale detecting method for variable frequency electromagnetic heating steam engine. Electromagnetic coils are energized to heat water, and the circulation cooling water is supplied to the radiator to dissipate work heat of the frequency converter; thus, the structure is reasonable, and energy saving and the consumption reduction are realized. Whether scale in an electromagnetic heating pipeline is accumulated to exceed the standard is judged by detecting the abnormality of an electromagnetic heating current value in real time.
Owner:SHENZHEN DONGTE ENG EQUIP CO LTD

Laboratory research device for coal and electricity integrated three-waste-based foaming material

ActiveCN110743446AGuaranteed constant currentGuaranteed constant voltage supplyFlow mixersTransportation and packagingGas liquid chromatographicGas cylinder
The invention discloses a laboratory research device for a coal and electricity integrated three-waste-based foaming material. Two input ends of a water liquid mutual drive unit are correspondingly connected with an output end of a constant current constant pressure pump and an output end of a liquid filling pump, and an output end of the water liquid mutual drive unit is connected with a liquid channel of a novel foaming device through a coil pipe; the coil pipe and the novel foaming device are arranged in a circulating water bath, and a high-speed camera is used for collecting foam images ofthe novel foaming device; a high-pressure storage tank is correspondingly connected with a gas chromatograph and a gas mixing tank; a vacuum pump is connected with the gas mixing tank; a calibrationgas cylinder is connected with the gas mixing tank; the gas mixing tank is connected with a pneumatic connector of the novel foaming device through an electromagnetic pressure reducing valve, a checkvalve and a vortex-type gas flowmeter sequentially; two output branches of a mixed slurry agitator is correspondingly connected with a feeding port of a screw rod pump and a weighing device A; and adischarging port of the screw rod pump and a discharging port of the novel foaming device are connected with two feeding ports of a three-waste-based foaming material mixer. According to the laboratory research device, a basis can be provided for the qualitative and quantitative research of the three-waste-based foaming material.
Owner:CHINA UNIV OF MINING & TECH

An autonomous navigation method for star sensors suitable for high mobility vehicles

The invention discloses a star sensor autonomous navigation method suitable for a high maneuvering carrier, relates to the technical field of celestial navigation, and solves the disadvantage in the prior art that a star sensor adopts the autonomous navigation of the high maneuvering carrier. The star sensor autonomous navigation method comprises the steps of firstly enabling the star sensor to recognize a capture initial posture by adopting an all-day autonomous star map, then recognizing the original pointing partial star map by utilizing initial attitude information, and calculating the posture to obtain a moving angle speed; combining the prior information obtained in the first and second steps, forecasting the posture and the star point position of the next sampling time, and rapidly forecasting the tracking recognizing mode; calculating a three-axis posture angle of the star sensor in an inertial frame according to a recognizing result, and finally calculating the three-axis posture angle of the carrier according to a matrix of the star sensor arranged on the carrier, thus finishing the independent navigation of the carrier. The star sensor autonomous navigation method provided by the invention has the characteristics that the realization is simple, and the continuous, high precision navigation data and the like are autonomously provided for the high maneuvering carrier.
Owner:CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI

Anesthetic evaporator self-adaptive to evaporation temperature change

ActiveCN110841164AAvoid adverse effectsThe judgment method is simple and intuitiveRespiratorsMedical devicesPhysicsAnesthetic agent vaporizer
The invention relates to the field of internal medicine anesthesia equipment, in particular to an anesthetic evaporator self-adaptive to evaporation temperature change. The anesthetic evaporator comprises multiple evaporation chambers, a gas collection chamber and a control mechanism, and the evaporation chambers are used for containing a liquid anesthetic and evaporating the same to form anesthetic vapor, the gas collection chamber is used for collecting the anesthetic vapor discharged by the evaporation chambers; one end of each evaporation chamber is connected with a carrier gas pipe for carrier gas to enter while the other end of the same is provided with a gas discharging pipe for discharging the carrier gas carrying the anesthetic vapor from the evaporation chamber, and all gas discharging pipes are connected with the gas collection chamber through the control mechanism, can disconnect communication of the evaporation chambers cooled through evaporation with the gas collection chamber through the control mechanism and can be connected with the gas collection chamber after the evaporation chambers rise in temperature when absorbing environment heat. By the anesthetic evaporator, the technical problem that anesthetic vapor output by existing evaporators is unstable in concentration caused by the fact that the concentration of the anesthetic vapor is reduced as evaporation speed is continuously lowered after the liquid anesthetic is evaporated and cooled can be overcome.
Owner:THE FIRST AFFILIATED HOSPITAL OF HENAN UNIV OF SCI & TECH

A supercritical carbon dioxide injection device for heavy oil mechanism experiment

ActiveCN112747254BSolve the problem of large quality measurement errorsImprove supercharging efficiencyFluid removalPipeline systemsControl systemProcess engineering
The invention discloses a supercritical carbon dioxide injection device used for heavy oil mechanism experiments, which adopts a driving gas source injection device, an air flow control device, a safety protection device and a control system; two independently arranged first gas booster pumps and second gas booster pumps The output ends of the two gas booster pumps are connected in series, and a cut-off valve, a pressure gauge and a flow proportional valve are set at the inlet end to simultaneously control the first gas booster pump and the second gas booster pump to improve boosting efficiency and Accuracy, after setting a constant temperature water bath with a preset temperature, measure the flow rate and pressurize, effectively solve the problem that the phase change of carbon dioxide during the pressurization process leads to large mass measurement errors, and the invention can realize continuous and stable small flow supercritical carbon dioxide The output has the function of constant current, constant pressure and constant temperature output. It has the characteristics of simple operation, safety and reliability, and meets the requirements of indoor heavy oil mechanism research based on carbon dioxide. The control system can realize precise control and feedback and improve control accuracy.
Owner:XI AN JIAOTONG UNIV

Continuously supplying device of liquefied carbon dioxide fluid

The invention discloses a continuously supplying device of liquefied carbon dioxide fluid. The continuously supplying device comprises a controller on the left side, as well as a liquefied carbon dioxide storage regulating tank and a liquefied carbon dioxide bus bar on the right side, wherein the liquefied carbon dioxide storage regulating tank is connected with the controller through a lead; the liquefied carbon dioxide bus bar is connected with the controller through a lead and connected with the liquefied carbon dioxide storage regulating tank through a pipeline. The liquefied carbon dioxide bus bar adopts a left liquefied carbon dioxide tank and a right liquefied carbon dioxide tank which are arranged side by side, the controller controls the left liquefied carbon dioxide tank or the right liquefied carbon dioxide tank to alternatively convey liquefied carbon dioxide to the main tank body of the liquefied carbon dioxide storage regulating tank so as to continuously and stably output liquefied carbon dioxide. The continuously supplying device of the liquefied carbon dioxide fluid has the advantage of being reasonable in design, reliable in performance, convenient to operate, low in energy consumption and wide in application scope and can be applied to continuous supply of liquefied carbon dioxide fluid in industial productions and scientific researches.
Owner:SHAANXI NORMAL UNIV

Preparation system of coal-electricity integrated three-waste-based foamed material and using method thereof

The invention discloses a preparation system of a coal-electricity integrated three-waste-based foamedmaterial and a using method thereof. The preparation system is characterized in that: a water-liquid mutual driving unit is used for supplying a foaming agent mixed solution to a novel foam maker through a coil pipe under the driving of a constant-flow constant-pressure pump; desulfurization equipment and compression equipment are sequentially used for treating flue gas to form flue gas liquid, and gasification equipment is used for treating the flue gas liquid to form flue gas to be suppliedto the novel foam maker; a three-waste-based foamed material mixer is used for fully and uniformly mixing a generated foam material and a mixed slurry to generate the three-waste-based foamed material. The comprises the following steps: carrying out desulfurization and compression treatment on flue gas, treating high-salt mine well water, and mixing and stirring fly ash, cement and high-salt minewell water to form the mixed slurry; supplying flue gas and a foaming agent mixed solution to the novel foam maker to generate a foamed material; uniformly mixing the foamed material and the mixed slurry to generate a three-waste-based foamed material; injecting into a self-top-contact region; and injecting flue gas into a worked out section. According to the system and the method, three wastes are scientifically treated and recycled, and the preparation process can be monitored.
Owner:CHINA UNIV OF MINING & TECH

Supercritical carbon dioxide injection device for thick oil mechanism experiment

ActiveCN112747254ASolve the problem of large quality measurement errorsImprove supercharging efficiencyFluid removalPipeline systemsWater bathsThermodynamics
The invention discloses a supercritical carbon dioxide injection device for a thick oil mechanism experiment. The supercritical carbon dioxide injection device comprises a drive gas source injection device, a gas flow control device, a safety protection device and a control system, wherein output ends of a first gas booster pump and a second gas booster pump which are independently arranged are connected in series, and the gas inlet ends of the first gas booster pump and the second gas booster pump are provided with stop valves, pressure gauges and flow proportional valves, so that the first gas booster pump and the second gas booster pump are controlled simultaneously, and the boosting efficiency and precision are improved; and a constant-temperature water bath with a preset temperature is set, then flow metering and pressurization are conducted, so that the problem that the mass metering error is large due to phase change of carbon dioxide in the pressurization process is effectively solved, continuous and stable small-flow supercritical carbon dioxide output can be achieved, and the constant-flow constant-pressure constant-temperature output function is achieved. The supercritical carbon dioxide injection device has the advantages of being easy to operate, safe, reliable and the like, meets the requirement for indoor thick oil mechanism research based on carbon dioxide, can achieve precise control and feedback through a control system, and improves the control precision.
Owner:XI AN JIAOTONG UNIV

Dry heat rock photothermal coupling power generation system with heat storage function and control method system thereof

The invention discloses a dry heat rock photothermal coupling power generation system with a heat storage function and a control method system thereof. The dry heat rock photothermal coupling power generation system comprises a dry heat rock circulation subsystem, a photothermal circulation subsystem and a power generation subsystem; the photothermal circulation subsystem includes a photothermal working fluid pump, a heat collector and a heat storage unit; an outlet of the heat collector is divided into two paths, one path is connected to a first inlet of a high temperature heat exchanger, anda first outlet of the high temperature heat exchanger is connected to an inlet of the heat collector; the other path of the outlet of the heat collector is connected to the heat storage unit to be used for storing excess heat when the light is sufficient, and the heat storage unit is also connected to the high temperature heat exchanger to be used for preheating a medium of the high temperature heat exchanger when no illumination exists; and the three systems cooperate and do cycle reciprocation, and continuous power generation of the dry heat rock photothermal coupling power generation system with the heat storage function is achieved. The system effectively solves the problems that pure dry heat rock power generation temperature is low, the photothermal power generation cost is high, and the floor space is large.
Owner:NORTHWEST ELECTRIC POWER DESIGN INST OF CHINA POWER ENG CONSULTING GROUP

Power distribution network relay protection vector check and action logic verification test device and method

The invention is suitable for the technical field of power system detection, and provides a power distribution network relay protection vector check and an action logic verification test device and a method. The power distribution network relay protection vector check and action logic verification test device is characterized by comprising a converter device and a simulation load, the input end of the converter device is connected with a mains supply, the output end of the converter device is connected with the input end of a device to be tested, and the simulation load is connected with the output end of the device to be tested; the converter device is used for adjusting output voltage and output current output to the device to be tested, the simulation load comprises a test inductor, an inductive simulation load, a capacitive simulation load and a simulation grounding wire which are connected in parallel, and the simulation load and the device to be tested can form various loops; when the device to be tested is tested, at least one of the following functions is realized by adjusting the simulation load: estimating the impedance of the device to be tested; performing impedance compensation on the device to be tested; and performing fault simulation on the device to be tested.
Owner:STATE GRID HEBEI ELECTRIC POWER RES INST +2

Air negative electrode for microbial fuel cell and preparation method for air negative electrode

The invention provides an air negative electrode for a microbial fuel cell. The air negative electrode is formed by combining a protective layer, a catalytic layer and a diffusion layer, wherein the protective layer has a porous nano-fiber structure, and is prepared from an inert high polymer material or a high polymer material with ionic conduction capability by using an electrospinning technology; the porous nano-fiber structure has a pore size of 50 to 10000nm and porosity of 50 to 90 percent; the protective layer is 50nm to 1mm thick. According to the air negative electrode, the size and distribution of pores of the protective layer can be controlled to enable ions and water to freely penetrate through the protective layer and disable microbes to penetrate through the protective layer; the protective layer also has a function of fixing the catalytic layer, hydraulic shearing force can be used for removing the microbes attached to the surface of the air negative electrode in a stirring or external circulation pump way in a positive electrode chamber during the running of the microbial fuel cell, and solution ionic conduction is promoted to keep pH in the vicinity of a positive electrode and the negative electrode neutral; a spinning technology is used for electrode preparation, and a process is simple, high in reproducibility and favorable for the broadening of electrode preparation.
Owner:WUHAN UNIV
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