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57results about How to "Achieve controllable" patented technology

Protection processing method and apparatus of software operation

The invention discloses a protection processing method of software operation, comprising: starting and operating the target software under specific operating environment; monitoring the progress of the target software and storing the operating data and operation record obtained by monitoring the target software; recovering the target software to a designated operating state according to the stored operating data and operation record. The invention also provides a protection processing apparatus of software operation, which can avoid the viruses during the operating of the software and direct damages for operating system caused by cockhorse, can implement the record, playback and control of the during software using, and can be enable the user to be convenient, visual and safe during software using.
Owner:TENCENT TECH (SHENZHEN) CO LTD

Controllable underwater acoustic board

The invention provides a controllable underwater acoustic board. The controllable underwater acoustic board comprises a sound-absorbing layer, a sound-insulating layer and a damping layer, which are made of polyurethane material, the sound-insulating layer is positioned between the sound-absorbing layer and the damping layer, the sound-insulating layer is provided with a flaring cavity, and a shape memory alloy drive element is buried in the mouth of the flaring cavity, and is connected with a control system. The controllable underwater acoustic board is provided with the acoustic covering layer which can actively regulate acting frequency and has a wide working band and a good low-frequency effect, and thereby has a good sound-absorbing and sound-insulating effect within the frequency range of hundreds of hertz and even a lower frequency range.
Owner:HARBIN ENG UNIV

Solar energy, wind energy and fuel gas complementary combined hydrogen production methane production circulating thermal power generation device

PendingCN110700944AImprove thermal power generation efficiencyIncrease the hours of thermal power generationCellsHydrocarbon from carbon oxidesElectrolysisMethanation
The invention discloses a solar energy, wind energy and fuel gas complementary combined hydrogen production methane production circulating heat power generation device. The device fully utilizes renewable energy such as solar energy and wind energy and a semi-closed supercritical carbon dioxide fuel gas Brayton thermal power generation system to realize complementary cycle power generation, the electric power generated by the solar energy and wind energy is mainly used for carrying out electrolysis hydrogen production and oxygen production on water generated by power generation of the system,the effluent carbon dioxide is subjected to hydrogenation methane preparation, oxygen is used for supporting combustion of natural gas or self-produced methane gas by the semi-closed supercritical carbon dioxide fuel gas Brayton thermal power generation system, and the high-temperature gas and the supercritical carbon dioxide power working medium which are fully mixed jointly drive a turbine to perform power generation; the water discharged by the system condensation and methanation preparation is collected not only for electrolytic hydrogen production, but redundant water is used for cleaninga solar energy mirror field or photovoltaic panels. According to the circulating thermal power generation device, the circulating thermal power generation is realized by means of renewable energy, and a technical basis is laid for replacing fossil energy power generation. The circulating thermal power generation device belongs to the technical field of solar energy thermal power generation and high-temperature thermal chemical interdisciplines.
Owner:张建城

Flow analysis method based on ARMA (Autoregressive Moving Average) model and chaotic time sequence model

InactiveCN102404164ARealize detectionActual prediction application value is goodData switching networksMoving averageTraffic flow analysis
The invention discloses a flow analysis method based on an ARMA (Autoregressive Moving Average) model and a chaotic time sequence model. By adopting the flow analysis method, the flow gathering, the feature extraction, the flow analysis, the flow forecasting and the abnormal flow detection can be realized. The flow analysis method comprises the following steps of firstly, monitoring and counting flow by calculating Hurst indexes, ARMA parameters, fractional difference, relevant dimension and time delay and estimating Lyapunov indexes; carrying out certain step-length forecasting on a sample point according to the parameters and the forecasting formula which are provided by the flow analysis; and early warning the abnormal flow in a network according to the variation of the Hurst indexes.
Owner:JIANGSU XINWANG TEC TECH

A method and device for realizing oriented processing of certain request

InactiveCN101534255AAchieve controllableGuaranteed to be under controlData switching networksClient-sideDistributed computing
The present invention discloses a method and a device for realizing oriented processing of certain requests, comprising that when a node in a network load balancing makes sure the need to process a request from a client, the node determines whether the request is the one of a certain business function; and when the verifying result is yes, the request is forwarded to the corresponding node of the certain business function. On the basis of existing network load balancing methods the present invention improves the procedure of node processing requests, forwards the requests which need the oriented processing of designated nodes to the given nodes for processing, processes the requests that need not oriented processing normally according to the procedure of existing network load balancing methods, betters the combination between network load balancing and the oriented processing of business flows, makes the network load balancing application more flexible and the application range wider.
Owner:RUIJIE NETWORKS CO LTD

Double-vibrating mode driving piezoelectric ceramic ultrasound wave electric machine small wave differential controlling method

A method for controlling wavelet differential motion of piezoelectric ceramic ultrasonic motor driven by double vibration mode includes providing wavelet voltage with frequency of 39.6 KH2 in N number of periods, making peak value of at least one period be greater then dead zone, using said voltage as a driving element and controlling sliding block speed by changing its output rate, dividing said voltage to be two paths and adding them on two sets of electrodes on said motor in differential way, controlling voltage D-value of said electrodes so as to control amplitude of vibration mode for changing oval motion trail of driving head.
Owner:HEFEI UNIV OF TECH

Organic porous material with graphite phase C3N4 structure as well as preparation and application of organic porous material

The invention belongs to the technical field of new material preparation and photocatalysis, and in particular relates to an organic porous material with a graphite phase C3N4 structure, a preparationmethod of the organic porous material, and application of the organic porous material in the field of photocatalysis. The organic porous material, which has the graphite phase C3N4 structure and is large in specific surface area and adjustable in energy band structure, is prepared by enabling an aldehyde group building unit and an amino group building unit to be subjected to Schiff base reaction,wherein 1,3,5-trialdehyde phloroglucinol (Tp) is taken as the aldehyde group building unit, and triamino-tris-triazines (melem) is taken as the amino group building unit; compared with graphite phaseC3N4, the organic porous material has a greatly enlarged specific surface area; furthermore, the energy band structure can be regulated by means of monomer regulation. The material provided by the invention has a very wide visible light absorption range, has obvious photocatalytic degradation activity for organic pollutants in water, and is also used in catalytic decomposition of water for hydrogen production under visible light at the same time; the method is mild in conditions, and the obtained material is stable in performance and suitable for large-scale production and application.
Owner:HUAZHONG UNIV OF SCI & TECH

Intelligent routing selection method based on flow analysis and node trust degree

The invention discloses an intelligent routing selection method based on flow analysis and node trust degree, which belongs to the technical field of networks and is suitable for the situation that a plurality of routings exist between an inlet router node and a target node and each routing only passes one intermediate node. The method comprises the steps of: implementing differentiation service among different businesses through business identification and marking, and then selecting a link with smaller load and higher trust degree through link flow prediction and the trust degree of an evaluation node. The method guarantees the safety at the same time of realizing load balance, thereby realizing the real-time, intelligent and dynamic routing.
Owner:NANJING UNIV OF POSTS & TELECOMM

Source monitoring and source tracking system for agricultural field

A source monitoring and source tracking system for the agricultural field comprises identification tag module, a sensing and detecting module, a data center module and a display platform module. RFID are adopted as identification tags by the identification tag module. The data center module packages collected data into a data model, offers queries of multiple dimensions, and offers informationized office management of agriculture operation and management staff. The data model comprises physical object basic information, environment basic information, growth process information and incident recording information. The data model aiming at individual physical objects of agricultural products is organized in the mode of using a time axis as a principal line and collecting all the process information of the individual physical objects and the environment changing process information relating to the individual physical objects. The display platform module displays the source tracking information of agricultural product objects according to unique identification of the agricultural product objects owned by the user. The source monitoring and source tracking system for the agricultural field is good in information transparency, and eliminates food safety hidden danger.
Owner:HANGZHOU KENYUAN NETWORK TECH

Titanium alloy friction stir welding stirring head and welding method thereof

The invention relates to the field of welding of a titanium alloy, in particular to a titanium alloy friction stir welding stirring head and a welding method thereof. The stirring head comprises a clamping part, a shaft shoulder and a stirring needle and is characterized in that the stirring needle is located below the shaft shoulder, the stirring needle is of a conical structure with the large upper and the small lower, and an annular groove is formed in the outer wall of the stirring needle; the stirring head is used for welding of the titanium alloy board of 4 mm to 10 mm. The stirring headis made of a W-Re alloy and has the wear resistance. According to the welding head, the rotating speed and the welding speed are controlled, the microscopic structure of the welding seam can be controlled, the aim of being capable of controlling the structure is achieved, and after welding, the obtained welding seam has the excellent mechanical property.
Owner:BEIJING INSTITUTE OF TECHNOLOGYGY

Anchor increasing grouting anchor rod device with adjustable length

The invention discloses an anchor increasing grouting anchor rod device with the adjustable length. A hollow connecting part is adopted for connecting two grouting anchor rods, a plurality of groutinganchor rods can be selected for assembling according to the specific requirement for the grouting depth, the overall length of the device can be adjusted, meanwhile, a tail anchor head is installed on the end portion of the first section of the grouting anchor rod, the tail anchor head is in detachable thread connection, installing is facilitated, after the drill holes are collapsed, a proper number of grouting anchor rods only need to be connected according to the depth of the collapsed drill holes, the problem that for existing anchor rods with the fixed length, due to depth change of the drill holes, surplus anchor rods need to be sawn off, the utilization rate of the anchor rods is increased, and the material waste is reduced.
Owner:CHANGAN UNIV

Energy storage charging device

The invention discLoses an energy storage charging device, which comprises a moving unit, an operation controL unit arranged on the moving unit, an energy storage unit and a non-vehicLe charging and discharging device; the non-vehicLe charging and discharging device is provided with a charging end for eLectricaLLy connecting with an eLectric vehicLe, a power suppLy end for eLectricaLLy connectingwith an externaL power grid, and a energy storage end for eLectricaLLy connecting with the energy storage unit. The charging end charges or eLectrifies the eLectric vehicLe by way of AC / DC bidirectionaL conversion. The power suppLy end is eLectricaLLy connected to the externaL power grid by means of AC bidirectionaL transmission, and is used for taking power from and suppLying power to the externaL power grid. The energy storage end is eLectricaLLy connected to the energy storage unit by means of DC bidirectionaL transmission, and is used for taking power from or suppLying power to the energystorage unit. The device converts the eLectric energy in a charging stake or the externaL power grid through a pLuraLity of AC / DC converters respectiveLy, and converts the converted aLternating current or direct current eLectricity to the eLectric vehicLe, which can meet the design of AC / DC integrated charging.
Owner:唐山市启明科技有限公司

Dimming function film, dimming function assembly and dimming function device

The invention discloses a dimming function film, a dimming function assembly and a dimming function device. The dimming function film comprises an upper electrode layer, a dimming function layer and a lower electrode layer from top to bottom. The dimming function layer comprises a polymer dispersion liquid crystal base material and a UV blocking function compound dispersed in the polymer dispersion liquid crystal base material. The UV blocking function compound is selected from one or more of a viologen compound, dipyridine and a derivative thereof, anthraquinone and a derivative thereof, tetrathifulvalene and a derivative thereof, and pyrazoline and a derivative thereof. In the dimming function film, the compounds are dispersed in the polymer dispersion liquid crystal base material to form the dimming function layer. In the actual operation process, the compounds can be promoted to react by contorlling a direct current power source, and therefore controllable passing of ultraviolet light is achieved. The turning direction of liquid crystal molecules in a PDLC base layer is controlled by controlling the alternating current voltage, and therefore conversion between brightness and darkness is achieved.
Owner:ZHANGJIAGANG KANGDE XIN OPTRONICS MATERIAL

Rotary tillage type combined fertilizer-and-seed drill matched with hand tractor

The invention discloses a rotary tillage type combined fertilizer-and-seed drill matched with a hand tractor. The rotary tillage type combined fertilizer-and-seed drill is composed of a rack, a rotary tillage device, a sowing and fertilizing device, a press wheel, a gear box and a sprocket wheel case, wherein the rotary tillage device is arranged below the rack and comprises a knife roller and a shell, a knife shaft and a blade form the knife roller, the blade is arranged on the knife shaft, the sowing and fertilizing device is arranged on the rack and is composed of a seed box, a seed discharging device, a seed discharging shaft, a seed delivery pipe, a fertilizer box, a fertilizer discharging device, a fertilizer discharging shaft, a fertilizer delivery pipe, a ditcher and a discharging capacity regulator, the press wheel is arranged at the rear of the rack, an input shaft of the gear box is connected with a power output shaft of the hand tractor, power of the hand tractor is transmitted to the rotary tillage device by virtue of a gear transmission mechanism in the gear box and a sprocket transmission mechanism in the sprocket wheel case, and the press wheel drives the seed discharging shaft and the fertilizer discharging shaft to operate by virtue of a chain mechanism. The rotary tillage type combined fertilizer-and-seed drill disclosed by the invention has the advantages that labour intensity can be greatly reduced, soil preparation, sowing and fertilizing efficiency can be improved, farming season can be shortened, and production cost can be reduced.
Owner:ANHUI AGRICULTURAL UNIVERSITY

Multicast service processing method and device, cloud platform, equipment and readable storage medium

The invention discloses a multicast service processing method and device, a cloud platform, equipment and a readable storage medium. The method disclosed by the invention comprises the following steps: receiving network messages in parallel through a plurality of virtual network card queues; and if the network message belongs to the multicast service, using the plurality of virtual CPUs to processthe network message in parallel, and transmitting the processed network message according to the OpenFlow flow table, so as to improve the processing efficiency of the multicast service, wherein thevirtual network card queues are in one-to-one correspondence with the virtual CPUs, the physical CPUs corresponding to the plurality of virtual CPUs belong to the same NUMA domain. The physical CPUs belonging to the same NUMA domain access the same memory area, that is, a plurality of virtual CPUs access the same memory area without cross-domain access, so that access delay can be avoided, and high-performance multicast is realized. Correspondingly, the multicast service processing device, the cloud platform, the equipment and the readable storage medium provided by the invention also have theabove technical effects.
Owner:北京浪潮数据技术有限公司

Active power scheduling method for power distribution network-level optical storage cluster and power distribution network measurement and control device

ActiveCN107994618AReduce light rejection rateBreak down barriers to integrated schedulingClimate change adaptationSingle network parallel feeding arrangementsLoad forecastingPower grid
The invention discloses an active power scheduling method for a power distribution network-level optical storage cluster. The optical storage cluster includes two or more of a group consisting of a photovoltaic power station, an energy storage device, a household optical storage device and a household uncontrollable photovoltaic device. The method includes the step of scheduling active power of each device in the optical storage cluster through an active power scheduling value delivered by a power distribution network. Moreover, the invention also discloses a power distribution network monitoring and control device adopting the method. According to the active power scheduling method for the power distribution network-level optical storage cluster, direct scheduling control is performed ondistributed devices such as photovoltaic and energy storage devices, the barrier of integrated dispatching of a photovoltaic power plant and an energy storage device in a traditional dispatching modeis broke through, and the load forecasting link is processed by a power grid scheduling center, so that the scheduling operation of the active power is more accurate and more reliable.
Owner:BEIJING JIAOTONG UNIV

Patrol system and method based on handheld intelligent data acquisition terminal

The invention discloses a patrol system and method based on a handheld intelligent data acquisition terminal. An Internet of Things technology is taken as an information carrier, an informatization platform is established on a traffic system by means of the network, system integration and a cloud computing technology, and automatic patrol work is realized; meanwhile, the government regulation department can monitor and control traffic system in the assistance of the system, the traffic and vehicle safety is improved, and body health and life safety of people are guaranteed.
Owner:QINGDAO LANGCOO WIRELESS SCI & TECH

Wave absorber and frequency selection function reconfigurable device regulated and controlled by gravity field

ActiveCN110797666ATo achieve the purpose of regulating the speciesAchieve controllableAntennasUltra-widebandElectrical resistance and conductance
The invention discloses a wave absorber and frequency selection function reconfigurable device regulated and controlled by a gravity field. The device comprises a bottom metal reflecting plate and a dielectric structure above the metal plate. The surface, the interior and the bottom layer of the dielectric structure are provided with three layers of metal resonance structures, and a communicationpart is arranged between the surface and the interior and allows mercury to flow. The surface metal resonance structures are connected through resistors, and a layer of glass dielectric covers the surface of the dielectric structure. Through special design, the position of mercury is changed under the action of a gravity field by rotating the device, so that the device is fundamentally changed indevice attribute and is converted between an ultra-wideband wave absorber and frequency selection. According to the invention, a simple operation means is used, and the purpose of convenient regulation and control is realized only by rotating the device. The materials of the device are easy to obtain, and the device is small, exquisite, flexible in design and wide in application range.
Owner:NANJING UNIV OF POSTS & TELECOMM

Air floating support system

The invention discloses an air floating support system. A piezoelectric ceramic ring is arranged above a support base, and a conical stator is arranged above the piezoelectric ceramic ring. A shaft rotor is arranged at the upper end of the conical stator, and an orifice is formed in the middle of the conical stator. A shell is arranged on the support base in a sleeved mode, a shaft hole and a positioning groove are formed in the shell, and a prism sleeve affixed with rectangular piezoelectric patches is placed in the positioning groove. A fastening end cover is arranged at the top of the shell, and the shaft rotor passes through the shaft hole, the prism sleeve and the fastening end cover. A high-pressure air pipe passes through the base and the shell to introduce high pressure gas respectively to the clearance of the conical stator and the radial clearance of the prism sleeve to form high pressure gas films. According to the inverse piezoelectric effect, the wall of the prism sleeve and the conical stator are driven by a piezoelectric material to vibrate with high frequency to produce ultrasonic excitation which acts on the high pressure gas films in the clearances, and a mixed suspension force is produced. The axial and radial controllable suspension of the rotor is realized by changing air pressure and voltage parameters. The air floating support system has a simple drivingstructure and no wear and tear, is intelligently controllable, and is suitable for some high-precision and pollution-free fields.
Owner:DALIAN NATIONALITIES UNIVERSITY

Software running system and running method thereof

The invention discloses a software running system and a running method thereof. The running system comprises a starting module, a monitoring module and a recovery module, wherein the starting module is used for starting and operating target software in a certain running environment, dividing a certain memory space and calling an API which is provided by an operating system and is used for realizing software running in the divided memory space; the monitoring module is used for monitoring a process of the target software and storing monitored running data and operating records of the target software; and the recovery module is used for recovering the target software to an appointed running state according to the stored running data and operating records. The software running system and the running method are capable of protecting the operating system from harm of Trojan virus in software running, realizing the recording, playback and control of the software running, and preventing the loss of the users in software use.
Owner:HEFEI MINZHONGYIXING SOFTWARE DEV CO LTD

Simulation rapid decompression chamber for civil aircraft

The invention relates to a simulation rapid decompression cabin for a civil aircraft. The cabin comprises a simulation window, a variable adjusting device installed on the simulation window in a matched mode, and a negative pressure air exhaust system arranged outside the cabin and communicated with the simulation window. The variable adjusting device comprises a template matching the simulation window and a locking piece for detachably installing the template on the simulation window. The negative pressure air exhaust system comprises a negative pressure tank, a negative pressure pipeline, anelectric control gate valve and a negative pressure cover, the negative pressure tank is provided with a vacuum pump, one end of the negative pressure pipeline is connected with the negative pressuretank, the other end of the negative pressure pipeline is connected with the negative pressure cover, the negative pressure cover is arranged outside the simulation window, and the negative pressure pipeline is provided with the electric control gate valve. According to the invention, the process of simulating the leakage and voltage-losing states of the aircraft is adjustable and controllable. And a simulation platform and equipment guarantee are provided for adaptive training and emergency disposal drilling of aircraft drivers and crew members.
Owner:烟台宏远氧业股份有限公司

Centralized control system for industrial microwave power source

The invention relates to a centralized control system for industrial microwave power source, which comprises several microwave power supply modules. The system is characterized in that the microwave power supply modules control and monitor through a control system; the control system comprises a master control terminal module and several central controller modules; the detection signal input ends of the central controller modules are connected to the signal output ends of the microwave power supply modules; the control signal output ends are connected to the control signal input ends of the microwave power supply modules; the control signal input ends of the central controller modules and the feedback signal output ends are connected to the I / O port of the master control terminal module through an RS485 bus; the control signal output end of the master control terminal module is connected to the control signal input ends of the central control modules through the RS485 bus. In this way, an industrial microwave power supply centralized control structure is formed. The invention has the beneficial effects of discovering and solving the problems timely; raising equipment reliability, maintaining the equipment conveniently; and minimizing accident loss.
Owner:佛山中科智城电子科技有限公司

Production device and production method for composite functional yarns

The invention provides a production device and a production method for composite functional yarns. A rear sizing roller, a middle sizing roller and a front sizing roller are adopted, small grooves areformed in the rear sizing roller and the middle sizing roller along the circumferential direction, and the front sizing roller is free of grooves; a three-bell-mouthed device comprising left, middleand right bell mouths is additionally mounted on the rear portion of a rear roller, and the middle bell mouth is aligned with the groove of the rear sizing roller; two short-fiber rough yarns are fedfrom the left bell mouth and the right bell mouth, and undergo the drafting action in a drafting system; a filament or a filament bundle is fed from the middle bell mouth and does not undergo the drafting action; when the short-fiber rough yarns and the filament or the filament bundle are pressed by a front bottom roller and the front sizing roller after being gathered, double short-fiber strandsoutputted by the drafting system cover the filament or the filament bundle under the action of twisting to obtain a covering yarn; when the short-fiber rough yarns and the filament or the filament bundle are pressed by the front bottom roller and the front sizing roller at certain intervals, the outputted double short-fiber strands cover the filament or the filament bundle under the action of twisting after respective weak twisting to obtain a fasciated yarn.
Owner:NANTONG DOUBLE GREAT TEXTILE

Balance test mould and test method of flexible gyroscope inertia rotor component

The invention belongs to the manufacturing technology, and relates to a balance test mould and a test method of a flexible gyroscope inertia rotor component. In the invention, by manufacturing a test mould and improving the test process, an adjusting screw is added to the test mould, the test standard can be strictly controlled, the measurement and control on the moving distance of an inertia rotor relative to a flexible head can be realized, and the accuracy and repeatability of the balance of the inertia rotor component are guaranteed. The test mould can control the clearance between an annunciator and a magnetic conduction surface of the gyroscope rotor within + / -0.005mm, and the gradient consistency of the annunciator is controlled at the magnitude of 10<-3>mV / ''; and through the test mould, the test accuracy and the repeatability of the balance of the inertia rotor component can be guaranteed to be 0.02 degrees / h / g and 0.05 degrees / h / g, respectively, thereby being beneficial to the overall performance of the gyroscope.
Owner:FLIGHT AUTOMATIC CONTROL RES INST

Urban Internet of Vehicles communication method based on named data network

The invention discloses an urban Internet of Vehicles communication method based on a named data network. RSUs are introduced into a static backbone network as managers of local topology; establishinga multi-stage data exchange node; the lowest-level data node in the multiple levels of data exchange nodes is connected with a road side unit, the communication range covered by one road side unit isdefined as a dynamic topology domain, and a vehicle node initiating a data request is used for preferentially inquiring an FIB table of the road side unit of the area where the vehicle node is located to determine whether a known data request interface exists or not; judging whether the interest packet and the roadside node of the region where the interest packet is located meet information exchange requirements or not, and realizing intra-domain or inter-domain communication of the interest packet by utilizing a roadside unit until a data packet is returned or the life cycle of the interestpacket is ended; the purpose of controllability is achieved by dividing and reducing the dynamic network topology range, and an intra-domain layering and inter-domain grading communication mechanism is adopted, so that the communication resource utilization rate in the Internet of Vehicles is improved, the routing efficiency is improved, and the communication stability is improved.
Owner:CHANGAN UNIV

Control method and control system of servo electric screwdriver

The invention discloses a control method and a control system of a servo electric screwdriver. The control method comprises the steps that preset servo parameters of the servo electric screwdriver are configured, and the preset servo parameters are obtained from a database; a controller is started to input preset servo parameters so as to enable the servo electric screwdriver to operate, and a torque value is detected through real-time torque so as to construct a torque curve model; whether the torque value of the torque curve model exceeds a preset range within a preset time or not is judged to obtain a judgment result; a preset servo parameter is adjusted according to the judgment result; and the controller is started to input the adjusted servo parameters so as to enable the servo electric screwdriver to operate, and a torque value is detected through real-time torque so as to construct a new torque curve model. According to the method, the torque curve is constructed according to real-time data of the servo electric screwdriver, and corresponding torque, speed and servo turns are adjusted according to changes of the torque reflection curve so as to make a servo electric screwdriver control strategy; and the screw driving process of the servo electric screwdriver is controllable, informatization butt joint is achieved, full-automatic production is achieved, and the production efficiency is improved.
Owner:ZHUHAI GREE INTELLIGENT EQUIP CO LTD +1

Space propulsion system with propellant and pressurized gas discharge

A space propulsion system with a propellant and a pressurized gas discharge device of the present invention includes a high-pressure gas cylinder, a gas circuit electric explosion valve, a pressure reducing valve, a gas circuit self-locking valve, a liquid circuit electric explosion valve, and a propellant storage tank. , Liquid circuit self-locking valve, discharge port; two high-pressure gas cylinders and propellant storage tanks are connected by pipelines, and gas circuit gas circuit electric explosion valves and pressure reducing valves are arranged in sequence on the pipelines; On the pipeline between the pressure reducing valve and the propellant storage tank; the two liquid circuit electric explosion valves are respectively connected to the two propellant storage tanks, which play the role of pipeline blowing and pressurized gas discharge; The lock valve is connected to the outlet of the two storage tanks. After the first operation, the propellant and pressurized gas are discharged, and the second operation closes the discharge system. The invention realizes that the discharge process can be controlled, and the self-locking valve is closed to stop or restart the discharge process after the discharge process is started; and the system is closed after the discharge process is completed.
Owner:SHANGHAI INST OF SPACE PROPULSION

Emergency protection circuit device with autonomous safety alarm function and use method thereof

The invention provides an emergency protection circuit device with an autonomous safety alarm function and a use method thereof, which belong to the field of emergency protection circuit devices. The emergency protection circuit device comprises an access shell, a circuit access mechanism is arranged at the bottom end of the interior of the access shell, and a circuit monitoring mechanism located at the top of the circuit access mechanism is arranged on the inner side of the access shell; the access shell is internally provided with an open circuit reset mechanism located on one side of the circuit monitoring mechanism, the access shell is internally provided with a circuit protection replacement mechanism located on one side of the open circuit reset mechanism, the access shell is internally provided with a buffer mechanism located between the circuit access mechanism and the circuit monitoring mechanism, and the top end of the access shell is provided with an alarm mechanism. The circuit can be controlled through the arranged open circuit reset mechanism, and the short circuit reset control device can make a corresponding response to an overlarge current condition according to a current value condition of the circuit, and reset is completed after the circuit is repaired.
Owner:汪春燕

Wind power prediction method and system and computer readable medium

The invention relates to a wind power prediction method and system and a computer readable medium. The prediction method specifically comprises the following steps: S1, collecting wind power sample data, and dividing the wind power sample data into a training set and a test set; S2, calculating a clustering center of a training set through fuzzy C-means clustering, calculating Euclidean distances from sample points in a test set to the clustering center, and matching corresponding categories; S3, performing decomposition and denoising on the clustered wind power sample data through a variational mode decomposition algorithm, and inputting the reconstructed wind power sample data into a plurality of extreme learning machine prediction models for training; and S4, selecting and optimizing kernel functions in the extreme learning machine prediction models through a particle swarm algorithm to obtain an optimized extreme learning machine prediction model, obtaining wind power real-time data, inputting the wind power real-time data into the optimized extreme learning machine prediction model, and outputting wind power prediction power. Compared with the prior art, the method has the advantages that the accuracy of the prediction result of the output of the wind power plant is improved, and controllable and schedulable wind power generation is realized.
Owner:SHANGHAI DIANJI UNIV
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