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Descending common signal channel measuring method, system, equipment and terminal
InactiveCN101222754ALow costImprove satisfactionRadio/inductive link selection arrangementsTransmission monitoringTelecommunicationsGeolocation
The invention relates to the wireless communication field and discloses a method for measuring a downlink public channel, and a system, equipment and a terminal, which can accurately measure the network in real time at low cost. In the invention, when a downlink public channel needs to be measured, a network lateral mobile terminal delivers the indication for measuring the downlink public channel; the mobile terminal measures the downlink public channel according to the indication and records the measuring result; the measuring result is reported to the network side in a proper time for the network side to use in layout optimization. The mobile terminal can just have channel measurement under the condition that the mobile terminal is in the edge of a cell. The network side can position a geographical position corresponding to the measuring result according to the information of the cell which the mobile terminal is in currently and the adjacent cells. The recorded measuring result is carried to the uplink information of other services and reported to the network side by the mobile terminal when other services are operated.
Owner:HUAWEI TECH CO LTD
Silicon mixed colloid electrolyte for lead acid storage batteries
InactiveCN102013521AAvoid Hydration StratificationImproved viscosityLead-acid accumulatorsVehicular energy storageWind powerSilicon dioxide
The invention discloses silicon mixed colloid electrolyte for lead acid storage batteries, comprising the following components: 89-93.5% of sulfuric acid solution with the density of 1.26-1.32g / ml, 2.5-10% of silica solution with the concentration of 40%, and 1-4% of fumed silica, wherein the total silica content in the silicon mixed colloid electrolyte is 5%, and the ratio of the net content of silica in 40% silica solution to the net content of silica in the fumed silica is 4:1 to 1:4. The colloid batteries produced by the method have the respective characteristics of the two gels; and the battery capacity is greatly enhanced, the large discharging performance of the colloid batteries is improved, the cycle life is prolonged, and the deep discharging performance is improved, thus the collid batteries can be widely used in the fields of solar energy and wind energy off-grid systems, electric power, communication, military communication stations, electric vehicles and the like.
Owner:SOUTH CHINA NORMAL UNIVERSITY
Additive for high-carbon lead-acid storage-battery polar plate
The invention discloses an additive for a high-carbon lead-acid storage-battery polar plate. The weight percentage of the additive is 0.01-10 percent of the content of lead powder in the formula of the polar plate corresponding to a storage battery, and the additive comprises precipitated SiO2 and / or gas-phase SiO2 or also comprises any one or two in CMC (Carboxyl methyl Cellulose) and PTFE (Polytetrafluoroethylene); because of the existence of the precipitated SiO2 or the gas-phase SiO2, the additive can interact with a sulphuric-acid electrolyte to form a three-dimensional netted structure in a system, and sulphuric acid and water are packaged in the three-dimensional netted structure, so that the electrolyte can be fully contacted with active substances; and meanwhile, the specific surface area of the precipitated SiO2 or the gas-phase SiO2 is higher, the porosity of the polar plate is improved, the surface utilization ratio of the active substances is improved, the capacity of the storage battery is improved, the cycling life of the storage battery is prolonged, and the additive is widely applicable to various high-carbon lead-acid storage-battery polar plates.
Owner:SOUTH CHINA NORMAL UNIVERSITY
Household palmtop mobile television system
InactiveCN101577650ALow costNo additional burdenData switching by path configurationMobile televisionTelevision system
The invention relates to a household palmtop mobile television system and relates to the field of computer streaming media. The household palmtop mobile television system combines the mobility of mobile phones and the entertainment of televisions and expands household entertainment modes. A server (3) receives the input of two television signals (1 and 2) and responds to control commands sent by the mobile phone (7), wherein one signal is sent to a television (6), and the other signal is sent to an intelligent mobile phone (7) by wireless networks (4 and 5) to play. The system has clear structure, is easy to expand; and the streaming media are real-time and easy to control so that household users can obtain new entertainment experiences on a wireless mobile platform at any corner.
Owner:GUANGZHOU HKUST FOK YING TUNG RES INST
Method and system for orderly obtaining messages of distributed publishing subscription system
A method retrieves in order a plurality of specific topic-based messages in a distributed publish / subscribe system, the distributed publish / subscribe system comprising at least one message transit server, the method comprising: determining an order of a plurality of to-be retrieved messages; recording, in message transit server sequence information, message transit servers where the plurality of messages are located, respectively, an order of the message transit servers in the message transit server sequence information corresponding to the determined order of the plurality of messages; and retrieving in order the plurality of messages from corresponding message transit servers using the message transit server sequence information.
Owner:IBM CORP
Ub interface information interaction method in general guiding frame
InactiveCN1878169AReduce counterfeitingLess chance of tamperingTransmissionHuman–computer interactionInteraction method
Owner:HUAWEI TECH CO LTD
Colloid electrolyte for lead-acid battery and preparation method thereof
InactiveCN102208690APlay a thickening roleAvoiding the Drawbacks of Hydration StratificationFinal product manufactureLead-acid accumulators constructionHYDROSOLOxygen
The invention belongs to the technical field of colloid lead-acid battery electrolytes and relates to a novel colloid electrolyte for a lead-acid battery and a preparation method thereof. In the colloid electrolyte, a silica sol is taken as a gel and contains 0.001%-0.009% of hydroxyethyl cellulose. The preparation method comprises the following steps: 1, preparing a hydroxyethyl cellulose water solution with the mass percent of 0.05%-0.5%; 2, preparing silicon dioxide into a silica sol and adding the silica sol to a sulfuric acid solution as well as stirring; and 3, adding the hydroxyethyl cellulose water solution in the step 1 to the solution obtained in the step 2, and dispersing. The hydroxyethyl cellulose is adopted to be an additive of the silica solution colloid electrolyte, thus playing a thickening role in a pure silica solution electrolyte, avoiding the defect of hydration layering of the pure silica solution colloid electrolyte, improving the stability of the pure silica solution colloid electrolyte, inhibiting the colloid electrolyte from hydrogen evolution and oxygen evolution to reduce self discharge, increasing the discharge capacity of a lead negative electrode, improving the charge acceptance of the lead negative electrode, restraining sulfation of the negative electrode and being beneficial to prolonging the service life of the battery.
Owner:SOUTH CHINA NORMAL UNIVERSITY
Mobile phone case with selfie-stick
InactiveUS20170085284A1Avoid scratchesSolve the lack of spaceTransmissionTelephone set constructionsMobile phone
A mobile phone case is fully integrated with an extendable selfie stick where the selfie stick can be folded and stored in the back of the mobile phone case when not used. The selfie stick can be unfolded and extended for settle photographs when needed. This mobile phone case combines a selfie stick into a protection case. It is multifunctional, portable, and easy-to-use.
Owner:AI CHUNBING
Method for realizing data interchange among stations in communication network
ActiveCN101631087AAdaptableStrong self-healing protectionData switching networksTraffic volumeTelecommunications
The invention discloses a method for realizing data interchange among stations in a communication network, which comprises the following steps: initiating a path inquiry request on a destination station to an attributive gateway station by using a source station; transmitting an assistant inquiry request to other network gateways by using the gateway station; inquiring the destination station for respective networks by using the other gateways and transmitting an answer to the source station through the gateway station attributive to the source station if the answer is received; establishing an indirect communication link table of the source station, the gateway station attributive to the source station, the gateway station attributive to the destination station and the destination station by using the source station and transmitting an indirect massage along an indirect communication chain; and recording and communicating with the source station by using the indirect communication chain and after the destination station receives the indirect message. Only a very short packet header is added for the data massage on an application layer and required to be resolved by the gateway station for transmission without adding network redundant traffic or adding the additional burden of the communication station.
Owner:FENGHUO COMM SCI & TECH CO LTD
Player positioning system and method for marathon races
InactiveCN107182024ANo additional burdenAccurate collectionNear-field transmissionSatellite radio beaconingGps trajectoryComputer science
The invention discloses a player positioning system and method for marathon races. The player positioning system comprises wearable devices, a bluetooth gateway device and a server, and is characterized in that each wearable device is provided with a unique ID number and is worn on an athlete and used for acquiring and storing GPS positioning data at regular intervals; the bluetooth gateway device is deployed along the course according to preset rules and used for being communicated with the wearable device, acquiring N times of GPS positioning data newly acquired by the wearable device and the ID number of the wearable device, parsing GPS track points according to the GPS data and transmitting the GPS track points back to the server at regular intervals; and the server is used for parsing and storing the GPS data. The player positioning system performs division on data concurrence of a base station through physical networking, and does not cause additional burden for the existing mobile network.
Owner:成都新橙北斗智联有限公司
Medical data integration system
InactiveCN109411073ANo additional burdenData SecurityMedical equipmentPatient-specific dataData synchronizationStructure of Management Information
The present invention discloses a medical data integration system, belonging to the field of information management. According to the technical scheme, an intranet workstation, a front server, an intranet center switch, a hospital information system, a data isolation device and a server set. The intranet workstation comprises an intranet workbench being in communication connection with the front server and an intranet workbench being in communication connection with the intranet center switch; the intranet center switch is in communication connection with the front server; the hospital information system is in communication connection with the front server and the intranet center switch; the front server performs synchronization of the data from the hospital information system in a non-intrusive data synchronization mode; the front server is in communication connection with the server set, and a data isolation area is arranged between the front server and the information interaction channel of the server set. The medical data integration system employs the non-intrusive data synchronization mode, and the integration system can be deployed at the tail end of the hospital network structure with no need for matching a data interface for completion of data collection.
Owner:北京医鸣技术有限公司
Method for operating semi-automatic open-end spinning machine workstation and workstation for performing the method
ActiveCN101481839AReduce downtimeImprove efficiencyFilament handlingOpen-end spinning machinesYarnEngineering
The invention relates to a semi-automatic open-ended spinning machine's workstation operating method. The workstation has a spinning apparatus fro producing yarns and a coiling apparatus for producing cross-wound bobbin, the cross-wound bobbin is manually exchanged when achieving a preset thread length. The method involves indicating a reaching of a preset thread length by a signal perceivable indistance by an operating personnel at each of work areas (2) of a semi-automatic open-ended spinning machine, for stopping a passage of a cross-wound bobbin (22).
Owner:ZHUOLANG INTELLIGENT MACHINERY CO LTD
Mobile phone photographing behavior based event positioning method
ActiveCN105045582ANo additional burdenIncrease credibilitySubstation equipmentSpecific program execution arrangementsApplication softwareComputer science
The invention discloses a mobile phone photographing behavior based event positioning method. The method comprises the steps of: photographing a plurality of photos in different directions by utilizing mobile phone photographing software in the same place to form a photo group, and recording situational information during photographing, wherein the situational information comprises a photographing position and a camera alignment direction during mobile phone photographing; estimating an event occurrence region and dividing the event occurrence region into grids; based on the situational information of the photos, establishing a trapezoidal region and calculating positioning weights of the grids covered by the trapezoid; and calculating positioning weights of the grids covered by all the photos in the photo group to obtain an accumulated positioning weight of each grid, then determining an event positioning grid set according to a set threshold value, and determining geographical coordinates for event positioning. According to the method, a photographer is not required to additionally open an application program or execute a specific operation, so that the burden of a witness is not additionally increased; and the positioning of an event can improve the credibility of the photos and provide information for polices, medias and publics to look for the scene of the event at the same time.
Owner:NORTHWESTERN POLYTECHNICAL UNIV
Inward-wound seal packaging bag for ring-shaped cylindrical object and packaging method thereof
InactiveCN102050279ASimple structureEasy to operateFlexible coversWrappersSocial benefitsVolatile corrosion inhibitor
The invention relates to an inward-wound seal packaging bag for ring-shaped cylindrical object and packaging method thereof, which comprises a flexible bag body corresponding to the inner surface and the outer surface of the ring-shaped cylindrical object, wherein two ends of the cylindrical bag body are open, and colloid is arranged at an opening on one side of the bag body; and the outer layer of the flexible bag body is made of plastic film and the inner layer of that is made of gas phase rustproof film coated on the inner wall of the outer layer. The sealing packaging is achieved by the following steps: the bag body is covered on the surface of a steel coil in a manner of aligning the edge of the ring-shaped cylindrical object like the steel coil; the rest of the bag body penetrate out from a ring-shaped hole of the steel coil; and the turned-over edge of the bag body is jointed with the bag opening previously covered on the other side of the steel coil surface via the colloid. In the invention, the VCI (Volatile Corrosion Inhibitor) gas phase rustproof film is used to seal the packaging, and the inner wall and the outer wall of the steel coil are fully coated, so that the sealing is good, the rustproof period is long, the ideal rustproof effect can be obtained, the substantive breakthrough in the rust prevention during the transportation to metal products is achieved, and the economic and social benefits are excellent.
Owner:UNICHEM APPLIED MATERIALS SHANGHAI
Cervical cancer precancerous early lesion stage diagnosis model and establishment method
InactiveCN111710427ASimple dataPracticalMedical simulationMachine learningCervical caPredictive value
The invention relates to a cervical cancer precancerous early lesion stage diagnosis model and an establishment method, and belongs to the technical field of medical detection. The method comprises the following steps: S1, acquiring HPV DNA detection result data and cytological diagnosis result data of each subject sample, and respectively constructing data sets; S2, performing equalization processing on the data sets; S3, performing multi-factor logistic regression model construction on the equalized data sets in different data factor combination modes to obtain a model with an optimal AUC value of an ROC curve in different combination mode construction models; S4, carrying out machine learning training on the to-be-trained model obtained in the previous step according Xgboost, random forest, a decision tree, a neural network or an SVM algorithm to obtain a model with the optimal AUC value in different algorithm models. According to the invention, the positive prediction value of thefinally-obtained cervical cancer precancerous early lesion stage diagnosis model can reach 0.8706 for a patient with precancerous lesion stages as the key point, and the negative prediction value canreach 0.946.
Owner:GUANGZHOU KINGMED TRANSFORMATIVE MEDICINE INST CO LTD +1
Satellite abnormal data identification method and device
ActiveCN110906929AReal-time online detectionSimple recurrence relationNavigational calculation instrumentsInstruments for comonautical navigationKaiman filterData stream
The invention discloses a satellite abnormal data identification method and device. The method comprises the following steps of acquiring the speed and position calculated by an inertial navigation system, and acquiring the speed and position outputted by a satellite positioning system; obtaining the measurement variables according to the speed and position calculated by the inertial navigation system and the speed and position outputted by the satellite positioning system; predicting the information data according to the measurement variables, calculating a mean value and a standard deviationaccording to an information data flow, and then calculating the Grubbs test statistics; constraining the test statistics according to a set detection level; and if the detected test statistics afterlevel constraint is an abnormal value, rejecting the data of the satellite positioning system, otherwise, inputting the data of the satellite positioning system into a Kalman filter for filtering estimation. The method and the device can realize the real-time online detection, have the simple recursion relationship, are small in calculation amount, do not cause the additional burdens of the systems, have certain elasticity based on the historical statistical data, can overcome the the adverse effect of the abnormal data, enable a discrimination system to be quickly recovered under the influence of the abnormal data, avoid the deadlock, and improve the reliability of Kalman filtering estimation.
Owner:中科宇航(广州)装备工业有限公司
Vehicle-mounted wind power generation device
PendingCN109915318AReduce weightSmall footprintWind energy with electric storageEnergy storageFrequency changerGenerators (Apparatus)
The invention relates to a wind power generation device for charging a vehicle storage battery and a power generation method. The wind power generation device is especially suitable for an electric vehicle, and is not limited to the electric vehicle. At present, due to the fact that the size of the wind power generation device is too large, the wind power generation device is difficult to be arranged on a vehicle. Through the arrangement of an air inlet in a horn shape and an air passage based on the venturi effect, the size and the weight of the wind power generation device can be effectivelyreduced, so that the wind power generation device can be mounted on an automobile, and power generation can be carried out in the advancing process of the automobile. The device comprises an air inlet (1), an air passage (2), a turbine wind power generator (3), an electric wire (4), an exhaust pipe (5), a frequency converter (6), a storage battery (7) and an air outlet (8). When the vehicle moves, wind energy is collected through the horn-shaped air inlet arranged on the vehicle head, when the wind energy enters the pipeline with the venturi effect, a high-speed flowing air flow is formed, the air flow blows blades in the turbine wind power generator to drive a rotating shaft to rotate at a high speed to generate electric energy, after the electric energy in the power generator passes through the frequency converter, the electric energy is transmitted to the input end of the storage battery, so that the storage battery can be continuously charged when the vehicle runs, and continuousenergy is obtained.
Owner:高睿 +1
Binder for lead-carbon battery
The invention discloses a binder for a lead-carbon battery. The binder is prepared by mixing polyvinyl alcohol together with one or more types of polyacrylic acid (PAA), ethylene-vinyl acetate (EVA) copolymer emulsion with solid content of 40-55%, and LA132 (polyacrylic terpolymer emulsion as effectively component). The content of the polyvinyl alcohol is 50-95% and the contents of the PAA, the ethylene-vinyl acetate copolymer emulsion and the LA132 respectively are 5-50%. The binder solves the difficulty in the co-pasting of the lead-carbon battery; by the addition of the binder, the effective binding of a negative electrode plate lead-carbon material can be realized, the binding force of lead paste and a plate grid is increased, and the strength of the electrode plate is ensured, therefore the properties of the storage battery is improved and the cycle life of the storage battery is prolonged; and the preparation method of the binder is simple, convenient and feasible, extra load of an enterprise for improving production equipment is not increased and the binder is suitable to production and application in a large scale.
Owner:JIANGSU AOXIN TECH DEV +1
Quantum random number generation device, method and equipment based on coherent optical receiver
ActiveCN113031919ACost minimizationLow costQuantum computersRandom number generatorsOptical receiversLight source
The invention provides a quantum random number generation device, method and equipment based on a coherent light receiver. The quantum random number generation device comprises a local oscillator light source, the coherent light receiver and a data acquisition and processing module, wherein the local oscillator light source is connected to one input end of the coherent light receiver, and the other input end of the coherent light receiver has no light input and is used as a vacuum state input end; the coherent optical receiver is configured to perform beam splitting, polarization, interference and conversion on input light to obtain a voltage signal; the output end of the coherent optical receiver is connected with a data acquisition and processing module, and the data acquisition and processing module is configured to perform data acquisition on the voltage signal output by the coherent optical receiver and quantify the voltage signal to generate analysis data, and then process the analysis data through a random number post-processing method to generate a random number. The device, the method and the equipment have the advantages of high stability, miniaturization and low cost, and multi-channel random number generation can be realized.
Owner:山东国迅量子芯科技有限公司
Vertical prestressed steel bar detection module and detection method for bridge concrete construction
The invention relates to a vertical prestressed steel bar detection module and detection method for bridge concrete construction. The detection module comprises a base plate and strain pieces, the one or more strain pieces are attached to the base plate, the strain pieces and the base plate are installed in a relatively-fixed mode, and an opening penetrating through the base plate is formed in the base plate. According to the vertical prestressed steel bar detection method for bridge concrete construction, the vertical prestressed steel bar detection module for bridge concrete construction, a nut, a steel bar and a strain tester are included, the vertical prestressed steel bar detection module for bridge concrete construction comprises the base plate and the strain pieces, the one or more strain pieces are attached to the base plate, the strain pieces and the base plate are installed in a relatively-fixed mode, the opening penetrating through the base plate is formed in the base plate, one end of the steel bar penetrates through the opening and then is in threaded connection with the nut, the other end of the steel bar is relatively fixed, and the strain tester is connected with the strain pieces for collecting strain piece data and judges whether the pulling force of the stressed section of the steel bar meets the determined requirements or not according to the data collected from the strain pieces.
Owner:ZHEJIANG XINGTU BRIDGE SPECIAL EQUIP MFG
Naked eye 3D local holographic display method
ActiveCN111948896ADoes not change how information is processedLow costStatic indicating devicesStereoscopic photographyDiffuse reflectionOptometry
The technical problem to be solved by the invention is to provide a naked eye 3D local holographic display method, and belongs to the technical field of three-dimensional display. The method comprisesa front scenery focal length partition measurement depth-of-field information acquisition part and a naked eye 3D local holographic display part. Naked eye 3D local holographic display comprises primary focusing, accurate adjustment of the light-emitting angle of light-emitting pixels, a 3D display driving circuit, pixel circuit driving and three-dimensional pixel taper angle axis pointing. A tiny liquid focusing lens is additionally arranged on each pixel of an existing display screen, diffuse reflection of common pixels is changed into control over the light-emitting angle of each pixel ora plurality of pixel light sources, naked-eye 3D local holographic display is achieved, the image display principle is consistent with the fundus projection effect of a real scene image seen by nakedeyes. Brain imaging does not cause extra burden, headache and eye fatigue are avoided after eyes are used for a long time, and the display screen has rigid market requirements.
Owner:陈蜀乔
Phase weighted side lobe suppression method based on alternative projection
ActiveCN107153175AEasy to implementDetection power does not decreaseWave based measurement systemsRadar signal processingPhased array
The invention relates to the technical field of radar signal processing, and particularly provides a phase weighted side lobe suppression method based on alternative projection. The method comprises the following steps: firstly initializing parameters, projecting a directional diagram into a set (shown in the description), then projecting the directional diagram into a set (shown in the description), then determining an end condition, if the end condition is satisfied, stopping iteration, otherwise re-projecting the directional diagram, and after the iteration is ended, calculating an array antenna directional diagram. By adopting the method, the side lobe level of a phased array radar transmission directional diagram can be effectively decreased; and moreover, an amplitude attenuator does not need to be controlled, and the subsequent engineering implementation of an algorithm is facilitated.
Owner:LEIHUA ELECTRONICS TECH RES INST AVIATION IND OF CHINA
Permanent magnet hall thruster ignition device
PendingCN109779865AEasy arc startConvenience to lead the beamMachines/enginesUsing plasmaControl cellEngineering
The invention discloses a permanent magnet hall thruster ignition device comprises an outer ceramic ring, an inner ceramic ring, an anode assembly, magnetic steel, a magnetic conductive base, a magnetic steel sleeve, excitation coils and a magnetic conductive ferrule; the magnetic conductive ferrule is installed on the outer wall of the magnetic steel in a sleeved manner; the magnetic conductive ferrule and the magnetic steel are installed in an annular positioning ring on the magnetic conductive base; and the excitation coils are installed between the inner wall of a magnetic steel sleeve andthe outer wall of the magnetic conductive ferrule through positioning of the annular positioning ring. In the ignition process, the excitation coils, a power supply of which is supplied by a cathodeheating power supply, generate a magnetic field with a direction opposite to a direction of an inherent magnetic field of the magnetic steel, and the intensity of the magnetic field at an outlet of adischarge channel is weakened, so that primary electrons emitted by a cathode can successfully enter the discharge channel, and arcing ignition of the thruster is facilitated; and after ignition of the thruster is finished, power supply of the excitation coils is cut off. By adopting the permanent magnet hall thruster ignition device, the ignition difficulty of a permanent magnet hall thruster canbe remarkably lowered, and extra burden caused to components such as a power supply processing unit, a propellant storage unit and a control unit cannot be generated at the same time.
Owner:NANHUA UNIV
Physical layer secure transmission method capable of resisting any number of eavesdropping antennas
ActiveCN111726221AGuaranteed Bit Error RateRealize secure transmissionKey distribution for secure communicationSpatial transmit diversityAlice and BobSecure communication
The invention provides a physical layer secure transmission method capable of resisting any number of eavesdropping antennas. According to the invention, precoding processing is carried out to resisteavesdroppers with any number of antennas or eavesdroppers with any number of cooperative nodes; legal receivers and transmitters do not need to share any key information. No matter how many antennasare used by an eavesdropper for eavesdropping, the bit error rate of the received confidential information can be ensured to be 0.5, high-strength physical layer secure transmission is achieved, the advantages of low power consumption, low complexity and low interference are achieved, physical layer secure communication of eavesdroppers of any multi-antenna can be achieved without any additional artificial noise or cooperative interference, and extra burden of a network or redundant interference to other users cannot be increased. In the communication process of the method, Alice and Bob of two legal communication parties need a protection area with the radius of R to surround themselves respectively, so that an eavesdropper Eve cannot enter the protection area to eavesdrop, and it is guaranteed that channels of the Eve are independent of the Alice and the Bob.
Owner:UNIV OF ELECTRONICS SCI & TECH OF CHINA
Method and system for orderly acquisition of messages in distributed publish-subscribe system
ActiveCN104079614BNo additional burdenData switching networksDistribution systemDistributed computing
Owner:IBM CORP
A kind of rotary tillage seeder
Owner:ANHUI DENGSHI MACHINERY MFG
Vertical prestressed steel bar detection module and detection method for bridge concrete construction
ActiveCN105509938BReduce manufacturing costEasy to operateForce measurementEngineeringStructural engineering
Owner:ZHEJIANG XINGTU BRIDGE SPECIAL EQUIP MFG
Silicon mixed colloid electrolyte for lead acid storage batteries
InactiveCN102013521BAvoiding the Drawbacks of Hydration StratificationLow costLead-acid accumulatorsVehicular energy storageGas phaseElectric vehicle
Owner:SOUTH CHINA NORMAL UNIVERSITY
Isolation bearing with high carrying capacity and convenient replacement
ActiveCN111962709AImprove carrying capacityEasy to replaceBridge structural detailsProtective buildings/sheltersBall bearingClassical mechanics
The invention relates to an isolation bearing with high carrying capacity and convenient replacement and used for a large space structure isolation layer. The isolation bearing comprises an upper pre-buried plate, a lower pre-buried plate, an upper connecting plate connected with the upper pre-buried plate, a lower connecting plate connected with the lower pre-buried plate, a rubber bearing main body, and a ball bearing arranged between the upper connecting plate and the lower connecting plate; the rubber bearing main body comprises a first connecting plate, a rubber bearing and a second connecting plate, and the second connecting plate is detachably connected with the lower connecting plate; and the first connecting plate is detachably connected with the upper connecting plate through a connecting piece. Whether the horizontal displacement of the isolation bearing is zero, or under the condition of large horizontal deformation, the isolation bearing has higher vertical carrying capacity, so that the safety of the upper structure is protected; the horizontal friction force of the ball bearing is very small, so that the resilience load of the rubber bearing main body is not increased additionally; and through detachable connection between the rubber bearing main body and the upper connecting plate, and between the rubber bearing main body and the lower connecting plate, the rubber bearing main body is easy to replace.
Owner:GUANGZHOU UNIVERSITY
Multifunctional crutch for improving mobility of patient
InactiveCN111096529AEasy to carry and useNo additional burdenWalking sticksEngineeringPhysical therapy
The invention discloses a multifunctional crutch for improving mobility of a patient. The crutch comprises a crutch rod, a handle, a retractable cushion, a micro vacuum pump, a storage battery, an inflation control device and a simple folding seat, the crutch is characterized in that the crutch rod is hollow, the storage battery and the micro vacuum pump are arranged on the upper portion of the crutch rod, the retractable cushion can be stored in the hollow position of the upper portion of the crutch rod, and the simple folding seat can be folded and stored in the hollow position of the lowerportion of the crutch rod. The multifunctional crutch capable of improving the mobility of the patient is convenient to carry and use, does not additionally increase the burden of a user, is providedwith the folding seat and the inflatable cushion besides being used as a common crutch, and serves as standing auxiliary buffering during standing, so that the user can stand more safely and stably.
Owner:钱华
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