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Platform construction method of intelligent iron and steel factory
InactiveCN108171422AImprove overall perceptionImprove the level of operation managementForecastingOffice automationInformation technologyIndustrial Internet
The invention provides a platform construction method of an intelligent iron and steel factory. The industrial big data in the enterprise internet of things are acquired, stored and computed by connecting the enterprise internet of things and the industrial internet of things and establishing a cloud computing center and a big data center so as to realize intelligent enterprise research and development, production and quality management and control. Firstly a decision support platform, an operation management platform and a simulation platform are established, and then multiple intelligent management processes are established based on the three platforms. If the iron and steel enterprise sticks to the method, the objective of intelligent construction of the metallurgical plant can be achieved, innovative integration of the new generation of information technology and advanced manufacturing technology can be realized, the iron and steel industry ecosystem and the novel manufacturing mode under the information condition can be constructed, the efficiency and the quality can be enhanced and the cost can be reduced and thus the effect is remarkable.
Owner:鞍钢集团自动化有限公司
Bag-feeding pillow type packaging machine
ActiveCN103241409AHigh degree of automationIncrease productivityPackaging by pressurising/gasifyingWrapper twisting/gatheringEngineeringPackaging machine
Disclosed is a bag-feeding pillow type packaging machine. A horizontal bag conveyor is disposed between a bag feeder and a horizontal bag opener. A feeding part of the horizontal bag conveyor is located below the bag feeder. A discharge part of the horizontal bag conveyor is connected with the rear end of the horizontal bag opener. A bag picker is located below the horizontal bag conveyor. The bag picker extends into the bag feeder through the feeding part of the horizontal bag conveyor. The horizontal bag opener is disposed on the conveying direction of the horizontal bag conveyor, a conveying device is disposed in front of the horizontal bag opener, the conveying direction of the conveying device is perpendicular to that of the horizontal bag conveyor, a horizontal feeding device is disposed on one side of the conveying device and located on the conveying direction of the horizontal bag conveyor, a motion direction of the horizontal feeding device is perpendicular to the conveying direction of the conveying device, a sealing device is disposed on the horizontal bag opener, a finished product output device is disposed below the horizontal bag opener, and the conveying direction of the finished product output device is perpendicular to that of the horizontal bag conveyor.
Owner:广东宏川环宇智能装备有限公司
Vibratory drive composite micro-power source based on piezoelectric effect and electromagnetic induction
ActiveCN101814860AMeet development needsHigh output energy densityPiezoelectric/electrostriction/magnetostriction machinesDynamo-electric machinesLead bondingElectromagnetic shielding
The invention relates to the micro-energy field, in particular to a vibratory drive composite micro-power source based on the piezoelectric effect and the electromagnetic induction. The micro-power source adapts the requirement of the micro electro mechanical system development for the micro-energy and comprises a substrate, a peripheral base, cantilevers and a mass block, wherein the substrate is fixed with the lower surface of the peripheral base by bonding; a vertical through hole is arranged in the middle of the mass block; an induction coil is processed on the upper surface and / or the lower surface of the mass block; a micro permanent columnar magnet is fixed on the upper surface of the substrate; PZT piezoelectric thin films are arranged on the cantilevers; a plurality of external lead bonding pads are arranged on the peripheral base; and the two ends of the induction coils and the two polarized surfaces of the PZT piezoelectric thin films are respectively connected with the corresponding external lead bonding pads by leads. The power source has reasonable and concise structure, is liable to miniaturization and integration, and can provide power to the micro electro mechanical systems at high output energy density and high output efficiency, realize self power supply of the micro electro mechanical systems and meet the requirement of the micro electro mechanical system development for the micro-energy.
Owner:ZHONGBEI UNIV
Method for detecting audio exceptional event based on environmental model
The invention relates to a method for detecting an audio exceptional event based on an environmental model, comprising the following operating steps of: (1) analyzing audio data in a monitoring environment by utilizing a hidden Markova model to obtain the level of similarity of the current audio segment corresponding to each audio type, thus a similarity vector is formed; (2) sorting on the basis of the similarity vector to obtain a type detection vector; and (3) firstly building an environmental model when no exceptional event happens by utilizing a neural network-based method and adopting an offline training mode, and then judging whether the current audio is an exceptional event or not in an online testing way according to a trained model.
Owner:BEIJING UNIV OF POSTS & TELECOMM
Spinel Li1+xMyMn2-x-yO4, preparation method thereof and lithium-ion secondary battery
InactiveCN101780983ARegular shapeGood consistencyFinal product manufactureLead-acid accumulators constructionLithium ion intercalationCrystallinity
The invention provides a lithium manganese oxide material, i.e. a spinel Li1+xMyMn2-x-yO4, wherein x is less than 0.1 and more than 0, y is less than 0.1 and more than 0, and M is selected from one or a plurality of Mg, Na, Co and Al; the ratio of the 400 crystal face diffraction peak strength I400 to 311 crystal face diffraction peak strength I311 of the Li1+xMyMn2-x-yO4 is 1.05-1.25; the atomic arrangement in crystal of the material is more ordered; the crystallinity degree of the material is higher, and fewer oxygen defects in a crystal lattice exist, thereby being more favourable for the lithium ion intercalation and deintercalation process in the crystal lattice and effectively inhibiting the Jahn-Teller effect to obviously improve the cycle performance of the material; and meanwhile, the invention also provides a preparation method of the material and is simple and easy to realize process. The invention also provides a lithium-ion secondary battery using the material, and the lithium-ion secondary battery has higher specific capacity and cycle performance, especially the high-temperature cycle performance, and satisfies the requirements of the existing battery development.
Owner:BYD CO LTD
Flight management system and method thereof based on multi-task parallel processing
InactiveCN101881969AMeet the needs of sustainable developmentReduce procurement costsVehicle position/course/altitude controlPosition/direction controlDisplay deviceParallel processing
The invention relates to flight management system and method thereof based on multi-task parallel processing. The system comprises an electronic flight instrument system display unit, a multifunctional control display unit, a flight management system processing unit and a display unit with a control button, wherein the multifunctional control display unit is used for maintaining existing functions of formulating and executing a flight plan; and the flight management system processing unit is connected with the multifunction control display unit and used for copying the formulated flight plan and carrying out assessment and dynamic modification on the flight plan. The invention converts the traditional signal processing scheme into a parallel processing scheme: one processing scheme is used for maintaining the traditional functions of formulating and executing the flight plan, and the other processing scheme is used for providing the dynamic modification and assessment functions; and flight personnel can effectively prepare and scientifically assess the change basis by dynamically modifying an assessment scheme, therefore, the invention can satisfy the changeful practical needs and improve the flight safety and the flight operation effectiveness.
Owner:CHINESE AERONAUTICAL RADIO ELECTRONICS RES INST
Method and device for realizing controlling wireless personal network equipment
InactiveCN101577854AMeet development needsRealize automatic controlNetwork topologiesLocation information based serviceAutomatic controlShortest distance
The invention provides a method and a device for realizing controlling a wireless personal network equipment, comprising the following steps of: obtaining the current position information of a mobile positioning terminal; calculating the distance between the mobile positioning terminal and the wireless personal network equipment according to the current position information of the mobile positioning terminal and the position information of the wireless personnel network equipment; and controlling the wireless personnel equipment when the distance meeting the prearranged control condition. The method and the device utilize the positioning technology to obtain the position information, realize the automatic control on the wireless personal network equipment when meeting the prearranged control condition, thus realizing the intelligent control in true significance and meeting the development requirement of the personal area network consisting of short-distance wireless communication technology.
Owner:ZTE CORP
Preparation method of glass transition temperature halogenless fire retardant glass cloth laminated board
ActiveCN100999145AEasy to makeSave raw materialsLamination ancillary operationsLaminationEpoxySolvent
The present invention relates to a preparation method of high glass-transition temperature halogen-free flame-retardant glass cloth laminated plate. Said method includes the following steps: (1), preparing halogen-free flame-retardant resin adhesive by using benzoxazine resin containing aralkyl structure, flame-retardant epoxy resin or general epoxy resin, solidifying agent, solidification accelerator, solvent and inorganic or organic flame-resisting agent according to a certain mixing ratio; (2), preparing glass cloth preimpregnated material; and (3), pressing so as to obtain the invented product.
Owner:SICHUAN DONGFANG INSULATING MATERIAL
Thermal repair method, device, server and system for Android application
InactiveCN106095502AAchieve normal operationImplement hotfixNon-redundant fault processingProgram loading/initiatingSoftware engineeringAndroid app
The invention discloses a thermal repair method, device, server and system for an Android application. The method includes the steps that a patch pack of the designated Android application is acquired, wherein the patch pack includes a repaired designated class file in the designated Android application; when the designated Android application is started, the patch pack is loaded; when the designated Android application needs to call a designated class file, the repaired designated class file is called from the patch pack to perform corresponding functions. Thus, compared with the prior art, according to the scheme, a series of steps of repacking a designated Android application, conducting testing, exchanging packs to various application markets and channels, reminding a user to conduct upgrading, reminding the user to conduct downloading, conducting coverage installation of the Android application with a new installation pack and the like by a publisher are not needed in the repair process, thermal repair of the Android application can be achieved through one patch pack without changing the original Android application, and thus the repair cost of the Android application is greatly reduced.
Owner:BEIJING QIHOO TECH CO LTD +1
Communication and control system orienting to intelligent power utilization
InactiveCN102866699AAdvancedPracticalTransmission systemsProgramme total factory controlMicrocontrollerWeb service
The invention discloses a communication and control system orienting to intelligent power utilization. The communication and control system orienting to intelligent power utilization comprises a core circuit board, a household intelligent socket module and a domestic appliance intelligent remote control module. The core circuit board with a C8051F020 single chip microcomputer as a control core is used for completing communication, control and user interaction function. The household intelligent socket module receives a control command through a WIFI (wireless fidelity) module I for realizing power on-off control, and a metering module acquires instantaneous power and judges operating condition of power equipment. The domestic appliance intelligent remote control module receives a control command sent by the core circuit board through a WIFI module II, and drives an electronic switch for controlling a household appliance remote control. By the aid of 3G (the 3rd generation) communication technology, teletransmission is achieved, by the aid of Web (world wide web) server technology based on the single chip microcomputer, user information interaction is achieved, by the aid of wireless local area network technology based on an Adhoc architecture, information exchanging of the control system and an intelligent socket and a household appliance remote control device is achieved, and the communication and control system orienting to intelligent power utilization is advanced, practical and easy to expand.
Owner:CHONGQING UNIV
Smart grid dispatching control system regulation and control integrated join simulation training system
InactiveCN106991859AImprove the efficiency of professional skills trainingImprove the quality of trainingCosmonautic condition simulationsSimulatorsTraining periodControl system
The invention discloses a smart grid dispatching control system regulation and control integrated join simulation training system. The smart grid dispatching control system regulation and control integrated join simulation training system relates to a simulation training system. For the problems that training of dispatchers and monitors breaks away from actual situations, training quality is not ideal, regulation and control service level cannot be improved effectively, and safe, reliable, economical and efficient operation of a power grid is influenced in the prior art, the invention provides such smart grid dispatching control system regulation and control integrated join simulation training system, which comprises a dispatcher training simulation subsystem for dispatcher training simulation, and a monitor training simulation subsystem for monitor training simulation. The dispatcher training simulation subsystem and the monitor training simulation subsystem respectively comprise a power system simulation module, a regulation and control center simulation module and a teacher system module. The monitor training simulation subsystem shares a part of modules of the dispatcher training simulation subsystem. The technical scheme can improve professional skill training efficiency of the power grid monitors and dispatchers, reduce training period and improve training quality, so that a high-quality staff team can be developed within a short time, and safe, reliable, economical and efficient operation of the power grid is ensured.
Owner:TRAINING CENT OF STATE GRID ZHEJIANG ELECTRIC POWER
Method and device for realizing Openflow multistage flow table
InactiveCN103401783AReduce the number of loopbacksImprove search speedData switching networksOpenFlowComputer science
The invention discloses a method and a device for realizing an Openflow multistage flow table. The method comprises the following steps of receiving and analyzing a message to acquire the attribute of the message and carrying out sequential search on at least one-stage flow stage according to the attribute of the message; after the message matching of the last-stage flow table in the sequential search is finished, judging whether to carry out the matching of the next-stage flow table or not, if so, transmitting the message into an ingress port preserved inside a chip through a chip roundtrip channel and carrying out the search of the next-stage flow stable, and otherwise, directly processing the message according to the matched flow behavior. According to the method and the device disclosed by the invention, by combining an Openflow processing mechanism with a roundtrip mechanism, the matching of the multi-stage flow table is realized by one-time roundtrip, so that the roundtrip times of the message are reduced, the utilizable bandwidth is increased, the matching of the Openflow multistage flow table is realized, the search speed of the message is increased and the forwarding of the message is facilitated. In addition, the ever-increasing demand on network application can be met.
Owner:SUZHOU CENTEC COMM CO LTD
Portable type lifting multifunctional teacher lectern
Owner:NORTHEASTERN UNIV
Mobile internet malignant application software detection method based on behavior model
InactiveCN103500307AMeet development needsFast wayPlatform integrity maintainanceNeural learning methodsNerve networkHide markov model
The invention provides a mobile internet malicious application software detection method based on a behavior model. The operation steps of the method include that (1) to-be-detected mobile internet application software is analyzed by means of a Hidden Markov Model to obtain the similarity of a basic operation type of the current software relative to each kind of software, and a similarity vector is formed; (2) arrangement is carried out on the basis of the similarity vector and a type detection vector is obtained; (3) an off-line training mode is adopted, a non-malicious behavior model is built by the method based on a neural network, and according to the well-trained model, whether the current application software is the malicious application software is judged in an on-line test mode.
Owner:BEIJING UNIV OF POSTS & TELECOMM
Variable weight combined forecasting method-based electric power load short-term forecasting method
InactiveCN107590562AReduce schedule pressureImprove the level of load forecastingMathematical modelsForecastingLocal optimumLoad forecasting
The present invention discloses a variable weight combined forecasting method-based electric power load short-term forecasting method. According to the present invention, aiming at the disadvantages that a conventional single load forecasting model and a fixed weight combined forecasting model are low in forecasting accuracy, and by comprehensively considering the time correlation of the electricpower loads and the influence of other related factors on the electric power loads, and combining various electric power load forecasting models, a variable weight combined forecasting model of the electric power load short-term forecasting is established. Meanwhile, aiming at the disadvantage that a particle swarm optimization variable weight parameter combined forecasting method traps in a localoptimal solution easily, a parameter dynamic adjusting particle swarm optimization algorithm is established, thereby realizing the optimization solution of the weight parameters of the variable weight combined forecasting model, and finally realizing the short-term forecasting of the electric power loads. The combined forecasting model of the present invention is better than a conventional load forecasting method, a fixed weight combined forecasting method and a particle swarm optimization variable weight parameter combined forecasting method, and has the higher forecasting accuracy.
Owner:XI AN JIAOTONG UNIV
Distortion calibrating method for large-field reflex free form surface space camera
ActiveCN104215261AExcellent optical parametersEnsure Distortion MeasurementsMeasurement devicesReflexData transformation
The invention discloses a distortion calibrating method for a large-field reflex free form surface space camera, and belongs to the technical fields of optical detection and optical measurement. The method comprises the following steps: building a measurement coordinate system by using three theodolites; calibrating an azimuth angle and a pitch angle of each metering marker in a full field of an optical system by datum transformation; and then calibrating two-dimensional distortion distribution of a reflex free form surface optical system of which the field angle is 76 degrees in a disperse adjustment state by a data fitting method. According to the distortion calibrating method, reserved precision distortion measurement under the complicated scattered condition of the optical system is achieved, the development cost is reduced, the development cycle is shortened, and the test result shows that both the precision and the accuracy of the measurement and data calculation methods meet the development requirements.
Owner:CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
Lead slime recycling and utilizing method
InactiveCN103647116AEmission reductionImprove efficiencyWaste accumulators reclaimingBattery recyclingRecovery methodEconomic benefits
The invention discloses a lead slime recycling and utilizing method which comprises the following steps: (1) recycling the lead slime, namely, feeding the lead slime subjected to separation by using a filter press into a bucket; (2) drying, namely, putting the bucket with the lead slime into a curing chamber and drying so as to reduce the water content of the lead slime inside the bucket to be less than 3%; (3) polishing and screening, namely, polishing the cured lead slime by using a grinding machine, and screening by using a 80-mesh sieve; (4) recycling, namely, conveying the ground lead powder into a mixer. The lead slime recycling and utilizing method is simple in process, and the curing chamber for machining batteries is adopted for curing, so that waste recycling and utilization can be achieved without purchasing extra new equipment, the investment is reduced, the economic benefits of companies are increased, the energy is saved, the emission is reduced, and the consumption is reduced.
Owner:TIANNENG BATTERY WUHU
Biaxially-oriented polypropylene capacitance film resisting high temperature and preparation method thereof
ActiveCN103448254AImprove heat resistanceHigh breakdown strengthFlat articlesCapacitanceBreakdown strength
The invention discloses a preparation method of a polypropylene capacitance film. The preparation method comprises the following steps of: (1) preparing a polypropylene material composite from the following components in parts by weight: 100 parts of polypropylene resin, 0.05-0.15 part of a photoinitiator, 3-5 parts of a cross-linking agent and 0.25-0.35 part of a hindered phenol antioxidant; (2) melting, plasticizing and extruding the polypropylene material composite by an extruder; (3) cooling a extruded melt body and casting into a sheet; (4) stretching the cast sheet in two directions into a film by using a bidirectional stretching equipment; (5) performing ultraviolet (UV) irradiation crosslinking on the stretched thin film; and (6) post-treating the irradiated thin film and reeling the thin film in a reeling machine to obtain a finished product. According to the preparation method of the UV crosslinked BOPP (biaxially-oriented polypropylene) capacitance film, the heat resistance and the breakdown strength of the polypropylene capacitance film are remarkably enhanced, the polypropylene capacitance film can meet the development demands of a strong-current capacitor market on advanced insulating thin film materials, and a new path is opened for high performance of the polypropylene capacitance film. Meanwhile the method is simple and easy to realize and has an extremely high industrial application value.
Owner:HUAWEI POLYIMIDE +1
Feed formula of taking cordyceps militaris culture medium residue as material, and preparation method thereof
The invention discloses a feed formula of taking cordyceps militaris culture medium residue as a material, and a preparation method thereof, and solves the problems that the traditional feed is high in cost, and the quality of eggs cannot be well improved. The feed formula disclosed by the invention is prepared from cordyceps militaris culture medium residue powder, corn flour, wheat bran, bean pulp, salt, fish meal, bone powder, vitamin mixture, microelements, methionine and premix compound. The invention also provides the preparation method of the Chicken feed formula. In the components of the feed formula, industrial waste, namely residual solid culture medium residue after cordyceps militaris sporocarp is picked up is utilized; the industrial waste is fully recycled, so that the production cost of the feed is greatly reduced.
Owner:SICHUAN ACAD OF AGRI SCI SERICULTURE INST +1
Correlated flux injection section test method and construction technique
A method is used for measuring flow injected into a section. A tracer with polymerization characteristic is released into the oil pipe of a flooding well. A part of the tracer goes through a water faucet, flows into the ring space of an oil sleeve and enters an injection layer when passing by an eccentric distributor. When the tracer is released into the oil sleeve, an instrument with two detectors should be placed at a position through which the tracer flows. When the tracer flows through two detectors in the ring space of the oil sleeve, a reciprocal change signal will be measured by the upper and the lower detectors. The other part of the tracer continues to flow down in the oil tube and the change signal is also measured by the upper and the lower detectors. Two wave crests appear on a well log. Owing to the good polymerization characteristic of the tracer, minor fluid state change combined, the small area of the ring space of the oil tube, short going-through time and the narrow width of the crest, the inner crest value of the oil tube and the crest value of the ring space of the oil sleeve can be determined. As the inner crest value of the oil tube is removed, the time when the tracer goes through the upper and the lower detectors can be worked out. Because the section of flow speed is known, the monolayer injection flow can be worked out according to an arithmetic mode.
Owner:林建伟
Integral-type mesh welding machine
ActiveCN107253053AMeet development needsIncrease productivityOther manufacturing equipments/toolsMetal working apparatusPunchingMesh reinforcement
The invention belongs to the field of steel bar mesh welding devices and discloses an integral-type mesh welding machine. The integral-type mesh welding machine is sequentially provided with a longitudinal bar conveying mechanism, a welding mechanism, a transverse bar blanking mechanism, a mesh pulling mechanism, a shearing mechanism, a conveying mechanism, a packaging machine, a stacking mechanism and a tray travelling mechanism according to the steel bar mesh machining sequence. A punching mechanism and / or a wire reversing mechanism and / or a mesh wiping mechanism capable of being selectively started are further arranged between the mesh pulling mechanism and the shearing mechanism. According to the integral-type mesh welding machine, through arrangement of all the mechanisms, welding, punching, wire welding and reversing, bending, stacking and packaging of a mesh piece can be automatically and integrally completed, and therefore a steel bar mesh with special requirements is machined; and the current development demands of machining industries are effectively met, and the production efficiency is improved.
Owner:TJK MACHINERY TIANJIN
Method for rotation modulation signal of MIMO system
InactiveCN101626284AImprove transmission performanceMeet development needsError prevention/detection by diversity receptionFrequency spectrumComputation complexity
The invention relates to a method for a rotation modulation signal of an MIMO system, which comprises the following steps: eliminating the relativity of the fading coefficients of I-path and Q-path channels sending the modulation signals by adopting rotation modulation and Q-path orthogonal component interweaving, and increasing the modulation diversity number to acquire modulation diversity gain; then leading in the time diversity and space diversity of the MIMO system, thereby improving the availability of frequency spectra even though the system achieves high transmission efficiency in the transmission process of a fading channel, realizing high transmission reliability through a plurality of diversities, decreasing an error rate and an error frame rate, approaching to an ideal channel capacity under the fading channel, and satisfying the development requirement of a wireless transmission net. Moreover, the method has simple and practical operation steps, low computational complexity and marked efficiency, can be used for a multiple code modulation technical scheme, is especially suitable for communication systems with high encoding rate code words, multiple antennae, high spectrum effectiveness and the like, and is superior to a BICM-MIMO system on integrated transmission performance.
Owner:BEIJING UNIV OF POSTS & TELECOMM
Vehicle intelligent speed measuring method based on binocular stereoscopic vision system
ActiveCN110322702ASimple installation and debuggingMeet development needsImage enhancementTelevision system detailsIntelligent transportFeature matching
The invention provides a vehicle intelligent speed measuring method based on a binocular stereoscopic vision system. The method comprises the following steps: training an SSD neural network by takinga license plate as a detection feature to obtain a license plate identification model; calibrating the binocular stereoscopic vision system to obtain the own parameters and external parameters of twocameras; performing license plate detection on an acquired video frame by using the license plate identification model, and locating the license plate position of a target vehicle; performing featurepoint extraction and stereoscopic matching on the license plate position based on a feature matching algorithm; screening and removing retained matching points, and keeping the coordinate of the matching point closest to the center of the license plate; performing stereoscopic measurement on the screened matching points to obtain a position under space coordinates; and calculating the travel distance of the target vehicle within a certain time interval to obtain the running speed of the target vehicle. Through adoption of the method, mounting and debugging are facilitated; a plurality of trained features can be automatically identified at the same time; and the development demand of a future intelligent traffic network and Internet of things can be met better.
Owner:ZHONGYUAN ENGINEERING COLLEGE
Band-pass type tunable optical filter array
InactiveCN103713360AMeet development needsCompact structureCoupling light guidesNon-linear opticsHeat stabilityPrism
The invention provides a band-pass type tunable optical filter array and belongs to tunable optical filters, wherein the band-pass type tunable optical filter array solves the problem that existing tunable optical filters cannot simultaneously meet the requirements for array integration, flat pass-band characteristics and grid-free tuning. The band-pass type tunable optical filter array comprises an optical fiber array, a micro-lens array, a polarization transformation assembly, a beam expanding prism, a cylindrical lens, a diffraction grating, a Fourier lens and an LCOS chip which are arranged on an optical path in sequence. The band-pass type tunable optical filter array is based on the LCOS chip, the free space optics structure is adopted, the structures and parameters of the micro-lens array, the prim, the cylindrical lens, the lens and other optical elements are designed appropriately, pixel regions of the LCOS chip are partitioned and arranged reasonably, and therefore the band-pass type tunable optical filter array is simple and compact in structure, supports wavelength grid-free tuning design, planarization design of pass-band characteristics and array integration design, has good heat stability and polarization stability, meets development requirements of next-generation all-optical networks, and can be widely applied to an optical fiber communication system.
Owner:HUAZHONG UNIV OF SCI & TECH
Method for mobile internet malicious application software detection based on support vector machines
InactiveCN103617393AMeet development needsFast wayPlatform integrity maintainanceTransmissionSupport vector machineData set
The invention relates to a method for mobile internet malicious application software detection based on support vector machines and belongs to the technical field of information safety. Currently, mobile internet application software plays a more and more important role in daily life of people; however, the method for mobile internet malicious application software detection is not mature enough. According to the method, the monitored mobile internet application software is analyzed according to a hidden Markov model so that the similarity level of each software basic operation type relative to current software can be obtained and a similarity vector can be formed; the similarity vector is input to five SVM models trained according to different kernel functions and whether an output result shows that the monitored mobile internet application software is a malicious application or not is judged by a voting system. According to the method, the shortages that a malicious behavior is defined imperfectly and a training dataset is overlarge in the prior art are overcome, effective detection on the malicious application software is achieved, and the reliability is high.
Owner:BEIJING UNIV OF POSTS & TELECOMM
Impact resistant high-efficiency wear-resistant material
The invention relates to an anti-impact efficient wear resistant material which is made of the following raw materials with the following weight ratio: 35 to 40 portions of ordinary Portland cement, 50 to 60 portions of quartz sand, 1.5 to 2 portions of sulpho-aluminate cement, 2 to 4 portions of coal ash, 0.4 to 1 portion of emulsion powders, 0.35 to 0.45 portion of dihydrate gypsum powder, 1.5 to 2.5 portions of silica dioxide powder, 0.35 to 0.45 portion of water reducing agent, 0.1 to 0.2 portion of cellulose ether and 0.1 to 0.2 portion of polypropylene staple. By adopting non-poisonous environmental protective raw materials, the anti-impact efficient wear resistant material has the advantages of impact resistance and high anti-compression strength, strong performance of high temperature resistance, good durability, long service life, environmental protection and low cost.
Owner:北京固瑞恩科技有限公司
Neutron detector and neutron detection method
ActiveCN104111471ALow priceImprove conversion efficiencyMeasurement with semiconductor devicesPhase detectorElectric field
The invention provides a neutron detector and a neutron detection method. The neutron detector comprises a drift electrode for providing a drift electric field, a boron-coated gas electron multiplier structure for performing conversion on incident neutrons, a gas electron multiplier structure for performing gas amplification on primary electrons generated after neutron conversion, and a read-out electrode for reading the amplified electronic signals out. The drift electrode, the boron-coated gas electron multiplier structure, the gas electron multiplier structure and the read-out electrode are arranged in parallel and arranged in order. The boron-coated gas electron multiplier structure is formed by at least one cascaded first gas electron multiplier film, and at least one side of the first gas electron multiplier film is coated with a boron layer. The neutron detector of the invention can be used to greatly improve the neutron detection efficiency, has advantages of high counting rate and good time resolution, and can be used to realize time resolution of higher order, and at the same time, the neutron detector has advantages of a gas detector and has advantages of good gamma inhibiting ability, low cost and large-area fabrication.
Owner:INST OF HIGH ENERGY PHYSICS CHINESE ACADEMY OF SCI
Broadband wide-angle omni-directional circularly-polarized antenna
InactiveCN106329107AIncreased Axial Ratio BandwidthHigh gainRadiating elements structural formsAntennas earthing switches associationCircularly polarized antennaBroadband
The invention relates an omni-directional circularly-polarized antenna, specifically a broadband wide-angle omni-directional circularly-polarized antenna. The antenna solves the problem that existing omni-directional circularly-polarized antenna cannot realize omni-directional polarization on multi-azimuth plane. The broadband wide-angle omni-directional circularly-polarized antenna comprises a round radiation plaster, a medium baseplate and a circular grounding plate, wherein the edges of circular radiation plaster and the circular grounding plate are provided with M upper and lower bending branches; each upper bending branch is composed of a micro-strip line extending along radial direction and an arc short section line clockwise extending along circumferential direction; each lower bending branch is composed a micro-strip line extending along radial direction and an arc short section line anticlockwise extending along circumferential direction; the included angle between the micro-strip lines of upper and lower bending branches is Alpha; N short-circuit via holes in isometric arrangement along circumferential direction are set between the circular radiation plaster and the circular grounding plate. The invention is applicable to wireless communication.
Owner:SHANXI UNIV
Variable-frequency detecting system and method for door opening and closing abnormity
ActiveCN105800434ALow costReduce development and debugging costsElevatorsBuilding liftsControl systemMachining system
The invention discloses a variable-frequency detecting system and a method for door opening and closing abnormity. The system comprises a door machine system and an elevator control system; the door machine system is communicated and connected with the elevator control system through an internal communication connecting wire; the door machine system is used for outputting corresponding current through a variable-frequency controller to control opening and closing actions of an elevator landing door or car door; the elevator control system is used for monitoring variable-frequency data of the variable-frequency controller to detect if abnormity in the door opening and closing process is generated; and if so, the abnormity type is judged, the fault code corresponding to the abnormity type is output, the floor information and the position information of the door machine system are stored, and the fault information is sent to development and debugging persons. The system needs no additional hardware to detect such information as the obstacle type and the operation state of the elevator door machine, saves the product cost, reduces the development and debugging costs, and can continuously maintain and upgrade the functions and algorithms in the later stage to satisfy the product development demands.
Owner:GUANGZHOU GUANGRI ELEVATOR IND
Multifunctional tool for silkworm
InactiveCN101258843AGood ventilation and light transmissionHigh degree of three-dimensionalAnimal husbandryComputer science
The invention relates to a multifunctional rearing instrument for silkworm, which pertains to the technical field of silkworm breeding and relates to an improvement of the rearing instrument. The rearing instrument for silkworm of the invention is used for overcoming the shortcomings of simple function and redundant patterns of the existing rearing instrument for silkworm, the various of instruments that are required for silkworm rearing such as plaques, racks, nettings, cocooning frames and supports of cocooning frame have the shortcomings that occupy large area, silkworm rearing, frame mounting and cocoon harvesting waste labor and time. The rearing instrument of the invention is a layer-foldable tray (1) assembled by frame-structured components, an upright post (2), a silkworm netting (3) or a cocooning frame, etc., which are arranged in the tray (1) to be made into a multifunctional rearing instrument for silkworm that integrates functions of cocooning frame, a plaque, a netting, a rack and a support of cocooning frame and can get rid of sands automatically, mount cocooning frame automatically and harvest cocoon quickly. All parts of the structure of the product, except the silkworm netting (3), can either be made into separate components for assembly or be integrally manufactured.
Owner:李永安
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