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6170results about How to "Ingenious idea" patented technology
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Automatic collecting and arranging machine for plastic soft bottle
ActiveCN101327851AImprove processing progressRealize the collectionProgramme-controlled manipulatorGripping headsAutomatic controlEngineering
The invention discloses an automatic machine for collecting and sorting plastic soft bottles. The device comprises a conveyor for plastic bottles, soft bottles or soft bags, as well as a machine frame, wherein a traction device moving horizontally is arranged above the machine frame; a bottle clamping device connected via a lifting cylinder is arranged on a moving trolley of the traction device; the traction device, the lifting cylinder and the bottle clamping device are connected with an electric control device with electrical automatic control; a product collecting device is arranged below the machine frame beside the conveyor; and the electric control device controls the bottle clamping device to make vertical up-down lifting movement under the drive of the lifting cylinder and to make horizontal translating movement under the drive of the traction device, and controls the bottle clamping device to clamp a product input by the conveyor, to transfer the product to the product collecting device through the lifting cylinder and the traction device and then to unclamp the product. The machine can clamp, lift and translate plastic bottles, soft bottles or soft bags input by the conveyor to a preset distance, drop and put the bottles or bags into the product collecting device.
Owner:SICHUAN KELUN PHARMA CO LTD
State estimating method for automobile start illumination type lead-acid storage battery
InactiveCN101813754AImprove accuracyAccuracy is obtained in real timeElectrical testingBattery chargeEstimation methods
The invention relates to a state estimating method for an automobile start illumination type lead-acid storage battery. The method comprises the following steps: 1) connecting the storage battery and a current / voltage / temperature detection device, and connecting the detection device and a storage battery state estimating device; 2) transmitting detected current / voltage / temperature data of the storage battery to a storage battery state estimating device by the detection device, and judging the working conditions of the storage battery according to the detected data and adopting different estimating methods by the state estimating device, 3) synthesizing charge states of the working conditions of the storage battery acquired in the step 2); 4) updating parameters in the storage battery charge state estimating method in the step 1) by using the deviation of the storage battery state synthesized in the step 3) and the storage battery state before synthesis and the error of each method, and calculating the healthy state of the storage battery; and 5) storing the parameters updated in the step 4) into the storage battery state estimating device for an iteration estimating process of the next period.
Owner:TSINGHUA UNIV
Mobile terminal digital certificate electronic signature method
ActiveCN105323062AIngenious ideaReasonable ideaUser identity/authority verificationIssuing bankInternet privacy
The invention relates to a mobile terminal digital certificate electronic signature method. According to the method, based on the characteristics of public keys and private keys and on the premise of not violating the rules prescribed by the electronic signature law, for example, a private key should be generated in a user terminal and should not leave the user terminal, a private key should not be transmitted via the network, and the like, a private key is discarded and locally and discretely stored after encryption, and the cloud uses strategies such as storing the public key and certificate to ensure that the private key is not locally cracked. In the transport layer, strategies such as double key and one-time pad are adopted to ensure that important information is not intercepted and decoded in network transmission. The identity of a certificate applicant is verified through the interface of an issuing bank, the user identity verification result of the bank counter is inherited, and therefore, remote online certificate issuing is realized in the system. The method not only can ensure that all the links of certificate applying, certificate issuing, certificate storing and certificate using are safe, but also can prevent hackers and Trojans from stealing certificate files, prevent network package-capture parsing, prevent password intercepting through screen capture and prevent an algorithm from being known through software decompiling.
Owner:BANKEYS TECH
Coordinated braking control method of electric automobile
ActiveCN101913352APrecise response to total braking force demandAchieve early responseBraking action transmissionControl systemElectric machinery
The invention relates to a coordinated braking control method of an electric automobile, which comprises the following steps of: 1. setting a coordinated braking control system; 2. when the automobile is under a braking or sliding condition, carrying out analysis processing on a braking command by whole automobile controller in the following conditions: (1) the dynamic coordinated control at the initial period of the common braking of a motor braking system and a hydraulic braking system; (2) the coordinated control giving priority to braking safety, i.e. under the condition of requiring larger braking torque; (3) the coordinated braking control giving priority to braking energy recovery, i.e. small-strength braking; and (4) a dynamic part, wherein the charge state of the battery and the rotating speed of a motor of the electric automobile are synthetically considered, when the charge state of the battery is higher and the battery does not need to be charged, the maximum braking torque provided by the motor is reduced, but the required braking torque is still provided by the motor; and 3. proportionally distributing the analysis results in the steps between the motor braking system and the hydraulic braking system to finally achieve the purpose of carrying out the coordinated braking control on the electric automobile.
Owner:TSINGHUA UNIV
Tectorial membrane rack for aorta without inner leakage
The tectorial membrane rack for aorta without inner leakage consists of one netted rack in the shape matching with aorta and tectorial membrane layer covering the rack. The present invention features that high-hydroscopicity polymer with biocompatibility is sewn to the end of the tectorial membrane to form collar-like sealing ring, which will expand to fill the interval between blood vessel and the rack after absorbing water. One kind of biodegradable coating is painted to the high-hydroscopicity material to retard its hydroscopic expansion. The said high-hydroscopicity material includes acrylic acid, acrylate, acrylamide, cellulose, etc. The present invention makes it possible to raise the safety and treating effect of operation.
Owner:维科医疗器械(苏州)有限公司
High molecular weight poly(butylene succinate) and preparation method thereof
ActiveCN101077905AHigh molecular weightNarrow molecular weight distributionPolymer scienceButanediol
The present invention relates to one kind of high molecular weight polybutanediol succinate and its preparation process, and features that bihydroxy terminated butanediol succinate, especially low molecular weight bihydroxy terminated butanediol succinate, as the pre-polymer and diisocyanate as the chain extender in 0.1-13 % are molten and reacted to prepare polybutanediol succinate with low cost, great molecular weight, narrow molecular weight distribution and excellent mechanical performance. The polybutanediol succinate has number average molecular weight greater than 5.5x10<4>, molecular weight distribution of 1.4-1.8, tensile strength of 39-58 MPa, and elongation at break of 300-700 %.
Owner:SICHUAN UNIV
Rock test piece die for triaxial compression test on intermittent double-fracture rock
ActiveCN103900882AEasy to processSimple structurePreparing sample for investigationEngineeringTriaxial compression
The invention discloses a rock test piece die for triaxial compression test on an intermittent double-fracture rock. The rock test piece die for the triaxial compression test on the intermittent double-fracture rock comprises a base and a middle frame die arranged on the base, wherein a gland is arranged on the top of the middle frame die; the middle frame die consists of two modules which are symmetrically buckled together and are provided with semicircular slots; fixing lugs are symmetrically arranged on the side walls of the two modules respectively; a bolt for integrally fixing the two modules is sleeved with the fixing lugs in a penetrating manner; rectangular wide slots for enabling a rectangular steel sheet to penetrate through and be positioned between the two modules are formed in the middle parts of the two modules. Compared with the prior art, the rock test piece die has the advantages of simple structure, easiness in machining, convenience in dismounting and mounting and fracture positioning accuracy; the precision and the efficiency for preparing a intermittent fracture rock material test piece.
Owner:CHINA UNIV OF MINING & TECH
Single silicon chip integrated chip combining acceleration sensor and pressure sensor and manufacturing method of single silicon chip integrated chip
ActiveCN102476786ASmall sizeEasy to packAcceleration measurement using interia forcesFluid pressure measurement using ohmic-resistance variationHigh volume manufacturingCantilever
The invention relates to a single silicon chip integrated chip combining an acceleration sensor and a pressure sensor and a manufacturing method of the single silicon chip integrated chip. The single silicon chip integrated chip comprises a single crystal silicon substrate and an acceleration sensor and a pressure sensor both integrated on the single crystal silicon substrate. The acceleration sensor and the pressure sensor are integrated on the same surface of the single crystal silicon substrate through adopting a single silicon chip single-side micro-processing method; a single crystal silicon thin film with a uniform and controllable thickness and an embedded cavity are formed through adopting the side wall root transversal etching technology, and pressure resistance is reasonably distributed on the upper surface of the single crystal silicon thin film to manufacture the pressure sensor; and the acceleration sensor adopts double cantilever beams and a mass block, both the mass block and the cantilever beams are processed and released through the follow-up optional galvanizing and etching to the single crystal silicon thin film, and the quality of the mass block is increased through adopting an electrocoppering method, so as to improve sensitivity. The single silicon chip integrated chip disclosed by the invention has the advantages that the structure is simple; and a non-bonding single silicon chip micro-machinery technology is adopted to realize the manufacturing of a single-side structure of the integrated chip, thereby meeting the requirements on small dimension, low cost and mass production of the sensor chip in TPMS (Tire Pressure Monitor System) application.
Owner:SHANGHAI INST OF MICROSYSTEM & INFORMATION TECH CHINESE ACAD OF SCI
Inverse kinematics solution method for six-degree-of-freedom serial robot
ActiveCN102637158AAvoid problems with rank less than orderIngenious ideaComplex mathematical operationsRobot kinematicsTabu search
The invention discloses an inverse kinematics solution method for a six-degree-of-freedom serial robot. The inverse kinematics solution method comprises the steps of: establishing a connecting rod coordinate system and setting variables theta 1, theta 2, theta 3, theta 4, theta 5 and theta 6; setting an initial configuration; solving theta 4, theta 5 and theta 6 by utilizing a geometric method; and eliminating theta 1, theta 2 and theta 3 by utilizing an algebra elimination method and introducing a tabu search algorithm when solving a non-orthogonal spheroid or the terminal structure of the non-orthogonal spheroid, thereby solving out corresponding numerical solutions. The inverse kinematics solution method is smart in conception and utilizes the geometric method and the algebra elimination method for comprehensive solution, thereby avoiding the problem that the rank of an equation determinant of coefficient is smaller than order caused by arbitrary establishing of equations and correctly obtaining the analytic solutions of six axes efficiently; and for complex-structure trigonometric function relationship, a linear equation in two unknowns can be effectively transformed to a linear equation with one unknown by the elimination method in the use of the geometric method, and therefore a unique corresponding analytic solution is obtained.
Owner:CHENGDU CRP ROBOT TECH CO LTD
Online updating method of principal component analysis monitoring model
ActiveCN102662321AEnsure consistencyReduce false alarm rateAdaptive controlKernel principal component analysisPrincipal component analysis
The invention relates to an online updating method of a principal component analysis monitoring model. The method comprises the following steps that: 1) A model online updating system comprising data acquisition equipment and a monitoring computer is arranged in industry field; 2) A traditional principal component analysis (PCA) modeling module uses historical data to establish a PCA initial monitoring model; 3) After the monitoring begins, a mean value variance updating module calculates a mean value and a standard deviation sigma' of a new model according to real-time process data and the current PCA model; 4) A projection point calculation module calculates a residual vector of a new sample and transmits to a residual determination module; 5) The residual determination module determines an updating method of a projection direction according to a size of a residual vector die; if the residual is large, a principal component space adjusting module is called; if the residual value is small, a principal component direction fine adjusting module is called; finally a load vector P' nk and a characteristic value matrix lambda' kk of the new model is obtained; 6) A control limit updating module carries out control limit and updating on statistical magnitude of the model; the system finally outputs the new model omega' which is used for online monitoring and fault diagnosis during an industrial process.
Owner:TSINGHUA UNIV
Real-time measuring apparatus and real-time measuring method for large deformation and stress of test tube in steel pipe bending deformation
ActiveCN103207118ASolve the problem of test abilityFull bending loadForce measurementMaterial strength using steady bending forcesAutomatic controlData acquisition
The invention discloses a real-time measuring apparatus and a real-time measuring method for large deformation and stress of a test tube in steel pipe bending deformation. The measuring apparatus comprises an oil cylinder, a hydraulic system, a pressure sensor, a water pressure system, a movable side force arm, the test tube, a strain meter, a rotation-angle measuring apparatus for a 2D length position at the middle of the test tube, a transition ring, a connecting flange, a fixed side force arm, a rotation-angle measuring apparatus for a tube end of the test tube, an adjusting joint, a load-bearing beam, a control system, a computer data acquisition and processing system, a stress and strain measurement system and a draw-wire displacement sensor III. The apparatus can increase measuring stability and measuring accuracy. The measuring method realizes automatic control, real-time supervision and automatic measurement of a steel pipe bending deformation test, can fully monitor and record changes of load, displacement, rotation angle, distribution of the stress and the strain when the test tube occurs bending deformation while bearing internal pressure load and bending load at the same time, can acquire, record and display test data in time, and can analyze and treat the test data.
Owner:BC P INC CHINA NAT PETROLEUM CORP +2
Elevator shaft construction scaffolding device capable of being elevated along with construction layer of building main body structure and method for setting same
InactiveCN102322135AEasy to installEasy to foldBuilding material handlingScaffold accessoriesFalseworkSurface layer
The invention relates to an elevator shaft construction scaffolding device capable of being elevated along with construction layer of building main body structure and a method for setting the same. The device comprises a scaffold made by setting up steel tubes, hoisting rings, a platform steel frame, support climbing feet, a plurality of wood joists and a template surface layer, wherein the platform steel frame consists of two steel joist main beams and a plurality of secondary beams; the support climbing feet are hinged with the end edges at two ends of the steel joist main beams; the hoisting rings are fixedly connected on the main beams; the plurality of wood joists are arranged above the main beams at a certain interval in the same direction as that of the secondary beams; the template surface layer is fixed above the wood joists through iron nails; the hoisting rings and the connecting short heads of the platform steel frame penetrate through the template surface layer; and the scaffold made by setting up the steel tubes is fixedly connected with the connecting short heads of the platform steel frame penetrate. The device and the method provided by the invention have the following advantages that: the mounting, the positioning, the hoisting and the repositioning of the whole elevator shaft construction scaffolding device are very simple and fast; and the whole system including wall templates can be once finished hoisting within about five minutes.
Owner:CHINA RAILWAY CONSTR ENG GROUP
Diameter-AAA server supporting RADIUS protocol and working method thereof
ActiveCN101252788AIngenious ideaSimple structureRadio/inductive link selection arrangementsTransmissionRADIUSSession management
The invention relates to a Diameter-AAA server supporting RADIUS protocol and the working method thereof. The server uses unified user information, and simultaneously provides AAA application service for two different protocol terminals of Diameter and RADIUS. The server comprises a TCP / SCTP interactive module, an opposite terminal management module, a conversation management module and an AAA application service module which are connected in sequence. The server is characterized in that three software function modules used for supporting the RADIUS protocol terminal, namely a UDP interactive module, a conversion module and an RADIUS opposite terminal management module, are added on the server as well. The invention also proposes the method for processing the mutual transformation of two protocol data packages of the Diameter and the RADIUS, in order to simultaneously provide the AAA service for the two protocol terminals of the Diameter and the RADIUS in a newly built Diameter network system, and to create condition and foundation for being gradually transited into a full Diameter AAA system afterwards.
Owner:BEIJING CAPITEK
Multi-printing-head third-dimensional (3D) printer technology of rotary platform
The invention relates to a new framework of a third-dimensional (3D) printer. The new framework of the third-dimensional printer comprises a printer body, a bracket, a rotary work platform and printing heads. The new framework is characterized in that a bottom rotary work platform drives a printing material to rotate; a group of printing heads at the upper end can carry out reciprocating motion along a printer head walking mechanism when rotating; all surfaces of the rotary platform can be covered by combining with the bottom platform to rotate; and a plurality of groups of printing heads are assembled at the upper end to distribute in a radial pattern by taking the bottom platform as the center. Thus, a plurality of printing work surfaces can be formed to print at the same time. The printing speed is improved in multiples; and a plurality of printing heads work at the same time, so that different materials or colors can be respectively printed; and the 3D printer technology has the characteristics that the bottom platform rotates and is matched with the plurality of printing heads to print.
Owner:陈明辉
Mining area earth surface time sequence deformation monitoring method based on time domain discrete InSAR interference pair
ActiveCN104062660ALow costIngenious ideaUsing wave/particle radiation meansRadio wave reradiation/reflectionTime domainDeformation monitoring
The invention discloses a mining area earth surface time sequence deformation monitoring method based on a time domain discrete InSAR interference pair. The time domain discrete InSAR interference pair not covering the whole time sequence process is obtained; highly coherent points in the time domain discrete InSAR interference pair are obtained; a relationship equation set of mining area dynamic sedimentation model parameters and unwrapping phases of the highly coherent points in the time domain discrete InSAR interference pair is built, and dynamic sedimentation model parameters of the highly coherent points are estimated based on the equation set; the time sequence deformation of the mining area earth surface can be estimated anytime through the parameters, and therefore mining area earth surface time sequence deformation monitoring based on the time domain discrete InSAR interference pair is achieved. The mining area earth surface time sequence deformation monitoring method based on the time domain discrete InSAR interference pair achieves monitoring of the mining area earth surface time sequence deformation through the discrete InSAR interference pair not covering the time sequence process, is ingenious in concept, is simple in process, is accurate and effective in monitoring effect, largely widens the application prospects of the InSAR technology, and lowers mining area time sequence deformation monitoring cost and technical limitations.
Owner:经通空间技术(河源)有限公司
Orthotropic plate U-shaped rib angle weld joint double-side welding technique
The invention relates to an orthotropic plate U-shaped rib angle weld joint double-side welding technique. The technique relates to a groove type and an assemble gap of a U-shaped rib angle weld joint, a device capable of welding in a U-shaped rib, a remote specification parameter regulating and controlling system and a remote wire feeding system, a welding video monitoring system is adopted, a gas shielded welding wire with less splashing, stable wire feeding and less coating is adopted, and appropriate welding specification parameters are adopted. The technique plays an important role in improving the fatigue resistance of a bridge deck structure and prolonging the service life of a steel bridge. The welding equipment for internal fillet weld of a U-shaped rib, the remote wire feeding system and the welding video monitoring system in the invention are also applicable to welding of narrow structures, thus the applicability is strong.
Owner:CHINA RAILWAY SHANQIAO GRP CO LTD +1
Fruit-and-vegetable intelligent irrigation system based on internet of things
PendingCN107087539AOptimal irrigation strategyPromote growthWatering devicesRenewable energy machinesThe InternetData acquisition
The invention discloses a fruit-and-vegetable intelligent irrigation system based on the internet of things. The fruit-and-vegetable intelligent irrigation system comprises an environment detection module, a data collection terminal, an intelligent irrigation decision-making server and an irrigation control terminal, and the environment detection module, the data collection terminal, the intelligent irrigation decision-making server, and the irrigation control terminal are connected in sequence; the environment detection module comprises a soil temperature-and-humidity sensor, a light intensity detector and a rainfall detector; the data collection terminal comprises a first CPU (central processing unit), a first communication module, an AD module, a solar power source and a storage module, and the first communication module, the AD module, the solar power source and the storage module are connected with the first CPU separately; the intelligent irrigation decision-making server comprises an irrigation decision-making inference engine, a storage module, and a computing module, and the storage module and the computing module are connected with the irrigation decision-making inference engine; the irrigation control terminal comprises a second CPU, a control module, a second communication module and an AD module, and the control module, the second communication module and the AD module are connected with the second CPU through a PCI bus.
Owner:苟瀚文
Modularized integrated smoke purification system and method for removing plurality of pollutants
ActiveCN102974185ALow running costLower stoichiometric ratioCombination devicesElectricityMulti pollutant
The invention discloses a modularized integrated smoke purification system and method for removing a plurality of pollutants. The system comprises an absorption tower, wherein a smoke inlet is arranged in the lower end of the absorption tower; the absorption tower is internally provided with a spraying device which is located above the smoke inlet and is used for spraying an absorbent, a first wet-type electric precipitation device located above the spraying device, and a second wet-type electric precipitation device located above the outer side of the absorption tower; and a smoke uniform distributor is arranged between the first wet-type electric precipitation device and the second wet-type electric precipitation device. The invention further discloses a method for carrying out smoke purification by using the system; the pollutants existing in an aerosol form, including SO2, NOX, superfine smoke dust, SO3 acid fog, mercury and the like in the smoke, can be intensively removed; gypsum rain is prevented and an environment is protected; and the smoke purification efficiency is improved.
Owner:SHANGHAI LONGKING ENVIRONMENTAL PROTECTION
Device and method for simulating generation of gas hydrate and measuring physical property parameters thereof
ActiveCN101936833AAccurate physical parametersAccurate Acoustic Property DataAnalysing fluids using sonic/ultrasonic/infrasonic wavesPreparing sample for investigationRefrigeration compressorEngineering
The invention relates to a device and a method for simulating generation of a gas hydrate and measuring physical property parameters thereof. The device is characterized by comprising a high-pressure reactor which is respectively connected with a high-pressure gas distribution system, a temperature measuring system, a pressure measuring system and an ultrasonic sound velocity measuring system, wherein the high-pressure reactor is arranged in a cold bath tank connected with a refrigeration compressor; a handle slide rod is slidingly inserted at the top of the high-pressure reactor; the ultrasonic sound velocity measuring system comprises two ultrasound probes respectively arranged at the bottom of the handle slide rod and the bottom in the high-pressure reactor, and the two ultrasound probes are respectively connected with an acoustoelectric transducer; one acoustoelectric transducer is connected with the transmitting end of an ultrasonic signal transmitter-receiver through a lead, while the other acoustoelectric transducer is connected with the receiving end of the ultrasonic signal transmitter-receiver through a lead; the ultrasonic signal transmitter-receiver is connected with an oscilloscope, and the output end of the oscilloscope is connected with a computer acquisition system; and a gas hydrate sound wave acquisition and analysis module is preset in the computer acquisition system.
Owner:CHINA NAT OFFSHORE OIL CORP +1
Fault detection method for one-class support vector machine based on density parameter optimization
ActiveCN102339389AAppropriately surroundedAppropriate degree of tightnessElectric testing/monitoringCharacter and pattern recognitionSupport vector machineData acquisition
The invention relates to a fault detection method for a one-class support vector machine based on density parameter optimization. The fault detection method comprises the following steps: 1) arranging a fault detection device which comprises data acquisition equipment, a confidence level arranging module and a supervisory control computer; 2) acquiring normal data generated during a production process by the data acquisition equipment, inputting the normal data into the supervisory control computer, and performing normalization treatment, thereby acquiring a total sample set Q; 3) setting a confidence level value alpha; 4) inputting the total sample set Q and the confidence level value alpha into a generating module of an optimized fault detector, and optimizing and acquiring a model of the optimized fault detector; 5) storing the model of the optimized fault detector by an application module of the optimized fault detector; and 6) in an industrial production process, inputting the acquired data into the supervisory control computer by the data acquisition equipment, after performing the normalization treatment on the data, inputting the data into the application module of the optimized fault detector, and outputting a fault detection result in real time by the optimized fault detector stored in the application module of the optimized fault detector. The fault detection methodprovided by the invention can be widely applied to the fault detection for the running state of an industrial production line.
Owner:TSINGHUA UNIV
Apparatus for automatically inspecting defects of PCB (printed circuit board)
InactiveCN102221563ASimple structureIngenious ideaMaterial analysis by optical meansPrinted circuit boardLight source
The invention discloses an apparatus for automatically inspecting defects of PCB (printed circuit board), comprising a frame, wherein a horizontally-arranged board feeding roller group, a board feeding compacting roller group, a position detecting switch, a light source detecting mechanism, a camera device, a board exit compacting roller group, a horizontally-arranged board exit roller group and a power device are arranged on the frame; the horizontally-arranged board feeding roller group is connected with a computer with a detecting and controlling program and is operated under the control of the computer; the position detecting switch is used for detecting the PCB; in use, the board feeding compacting roller group and the board exit compacting roller group act sequentially to send the PCB to be photographed gradually by the camera device, then the photographed images are spliced into an image by the computer, and the computer conducts comparison and operational analysis on the spliced image and a standard image prepared in advance so as to find the defect; furthermore, the outside of the defects are surrounded by lines of different colors and the serial number of the board is marked so that the board can be searched and repaired. The apparatus has a simple structure, smart concept, high automation, high inspection efficiency, high detection veracity, convenience in operationand low manufacturing cost, and is suitable for general popularization and application.
Owner:MEIZHOU TAIYUAN TECH
Full-automatic immunization analyzer and detection method
ActiveCN106596989AEliminate useHigh degree of automationMaterial analysisDiaphragm pumpINTRODUCTION device
The invention relates to a full-automatic immunization analyzer and a detection method. The full-automatic immunization analyzer comprises a sample introduction device (1), a reagent card conveying device (2), a feeding mechanism (3), an incubation device (4), a puncture sampling assembly (5), a cleaning assembly (6), a discharging device (7), a detecting device (8), a plunger pump assembly (9) and a diaphragm pump assembly (10). The above modules are combined under control of a system control module and realize automatic immunoquantitative analysis of multiple samples through cooperation with each other so that detection efficiency is improved and requirements on a tester professional level are reduced.
Owner:SHENZHEN LIVING WATER POCT CO LTD
Powder supplying and spreading method and device for multi-material part 3D printing
ActiveCN105618755AEasy to operatePracticalAdditive manufacturing apparatusIncreasing energy efficiencyMulti materialMaterials science
The invention discloses a powder supplying and spreading method and a powder supplying and spreading device for multi-material part 3D printing. A plurality of powder supplying funnels are used for storing different powder materials and quantitatively supplying the powder materials; powder in each powder supplying funnel drops into a powder equalizer by virtue of gravity; and the powder equalizer is used for uniformly dispersing and dropping powder from each powder supplying funnel into a powder laying box. The two sides of a powder laying box body of the powder laying box are separately provided with a high flexible scraper plate and a low flexible scraper plate; when the powder laying box moves above a forming platform, the high flexible scraper plate is responsible for spreading out powder materials to a position above the platform; and the low flexible scraper plate is responsible for recycling residual powder into a powder collecting box after each powder in the forming layer is molten or sintered. By virtue of the means that gravity is adopted for quantitatively supplying the powder, the high flexible scraper plate is adopted for spreading the powder and the lower flexible scraper plate is adopted for recycling the residual powder, and the like, a simple and practical powder supplying and spreading method, and a simple and practical powder supplying and spreading device are provided for realizing 3D printing of multi-material parts by free point-dependent material selecting.
Owner:SHAOGUAN COLLEGE
High-precision device for removing flash groove burrs of wheel
PendingCN107283000ASolve the problem of uneven deviationReduce combination errorFeeding apparatusDrilling toolsGear wheelCentre of rotation
Owner:CITIC DICASTAL
Multi-channel sound wave communication system and method
ActiveCN102611658ASolve the problem of mutual signal interferenceSimple structureSonic/ultrasonic/infrasonic transmissionMulti-frequency code systemsLoudspeakerDirect digital synthesizer
The invention relates to a multi-channel sound wave communication system and method. Effective information can not be transmitted by purely using an ultrasonic wave frequency characteristic, and less frequency points exist. The information is transmitted by using amplitude modulation, and error rate is high. The multi-channel sound wave communication system comprises a sound wave information generator and a sound wave information receiver, wherein the sound wave information generator comprises a first microphone, a first analog to digital conversion module, a channel selection module, a DDS (Direct Digital Synthesizer) carrier generation module, an FSK (Frequency Shift Keying) modulation module, a code element information storage module, a coding module, a first clock module, a digital to analog conversion module, an analog filter module, an amplifier module and a speaker. The sound wave information receiver comprises a second microphone, a second analog to digital conversion module, a digital down converter module, a digital filter module, a down-sampling module, an automatic gain control module, a synchronous decision module and a second clock management module. The multi-channel sound wave communication system has a simple structure, and avoids that each path of traditional FSK demodulation is subjected to a large quantity of digital signal processing operation.
Owner:浙江集速合芯科技有限公司
Real-time monitoring method for growth characters of tea trees in intensive cultivation
ActiveCN103439265AAchieve high quality and high yieldImprove qualityUsing subsonic/sonic/ultrasonic vibration meansColor/spectral properties measurementsBudTea leaf
The invention discloses a real-time monitoring method for growth characters of tea trees in intensive cultivation. The method comprises the following steps: performing real-time data acquisition by a tea tree living body growth character data acquisition device based on online location, transmitting the acquired data to an artificial comprehensive management center through a wireless communication way to process, wherein the acquired data comprises current location data acquired by a locating mechanism, fresh tea leaves spectrum data acquired by a high spectrum imaging sensor, and average growth height of fresh tea leaves measured by an ultrasonic wave sensor, and judging the best fresh tea leaf picking time based on that the data and a picking judgment model established off line are combined by the artificial comprehensive management center. The picking judgment model comprises a bud size growth measurement model based on average growth height, a yield correlation model and a quality correlation model based on the high spectrum image data. The real-time monitoring method for the growth characters of the tea trees in intensive cultivation is beneficial to realizing of intensive cultivation and automation in planting of the tea trees.
Owner:湖南星索尔航空科技有限公司
Suspended force-sensitive sensor chip capable of eliminating encapsulation stress and manufacture method thereof
ActiveCN103674355ASolving Packaging ChallengesIngenious structureDecorative surface effectsForce measurement using piezo-resistive materialsHigh volume manufacturingChip size
The invention relates to a suspended force-sensitive sensor chip capable of eliminating encapsulation stress and a manufacture method thereof. The chip comprises a monocrystalline silicon substrate, and a cantilever beam and a pressure sensor which are both integrated on the monocrystalline silicon substrate, wherein the cantilever beam and the pressure sensor are integrated on the same surface of the monocrystalline silicon substrate by a monocrystalline silicon substrate single-side microprocessing method, the pressure sensor is integrated on the structure of the cantilever beam, and a reference pressure cavity is directly embedded in the cantilever beam. The dynamic properties of a freedom of movement structure at the tail end of the cantilever beam are fully utilized by the suspended force-sensitive sensor chip, the adverse effect of the outer encapsulation stress of the chip on the detection performance of the force-sensitive sensor can be effectively inhibited by the pressure sensor on the cantilever beam, the friendly encapsulation of encapsulation base plates of different materials is realized by the force-sensitive sensor, and the detection stability of the sensor and encapsulation environment adapting reliability are improved. The suspended force-sensitive sensor chip has the advantages of novel design, simple structure, low encapsulation cost, small chip size and low chip cost. The requirement of massive production is met.
Owner:SHANGHAI INST OF MICROSYSTEM & INFORMATION TECH CHINESE ACAD OF SCI
Blood sampling pen of which penetration depth is adjusted at rear portion
ActiveCN107854129ASolve problems that interfere with penetration depthSolve the problem behindDiagnostic recording/measuringSensorsBlood samplingPediatrics
Owner:STERILANCE MEDICAL SUZHOU
Automatic underwater landform detection device applicable to torrent environment
An automatic underwater landform detection device applicable to a torrent environment comprises a device body, a balanced wing, a laser range finder, a sensor, an ultrasonic depth finder, a GPS moving station, a GPS base station, a ruler, a rudder, a computer chip, a data storage unit, an LCD display screen and a battery, wherein the balanced wing, the emitter and the receiver of the laser distance finder and the probes of the sensor are located on two sides of the device body; the LED display screen is mounted at the upper part of the device body; the rudder is located at the tail part of the device body; the laser distance finder, the ultrasonic depth finder, the sensor, the data storage unit, the battery and the computer chip are sealed in a working cabin of the device body; the GPS moving station is mounted in the working cabin of the device body; an antenna of the GPS moving station is located at the upper part of the device body and is wrapped by a waterproof material; the GPS base station is placed on the open ground of a bank; the transducer of the ultrasonic depth finder is mounted on the external bottom surface of the device body; the ruler is outside the antenna of the GPS moving station. The automatic underwater landform detection device has a wide application prospect in the technical field of underwater landform measurement equipment.
Owner:BEIJING NORMAL UNIVERSITY
Automatic assembling and tack welding system for U-shaped rib plate units
ActiveCN103008933AImprove assembly accuracyHigh automatic assembly production efficiencyWelding/cutting auxillary devicesAuxillary welding devicesEngineeringRobot welding
The invention discloses an automatic assembling and tack welding system for U-shaped rib plate units, which comprises a pair of parallel rails and a gantry, the gantry can move on the rails, and an assembling platform is laid between the two rails; the gantry comprises an upper crossbeam, a lower crossbeam, four uprights and two traveling beams, the upper crossbeam and the lower crossbeam are respectively fixed between the two front uprights, and one gantry-traveling mechanism is respectively arranged on the bottom of each of the two traveling beams; a movable welding system is arranged on the upper crossbeam; and a movable two-dimensional adjustable positioning and pressing system is arranged on the lower crossbeam. Because the two-dimensional adjustable positioning and pressing system is combined with a polishing and dedusting system and the robotic welding system, the polishing and dedusting of the area to be welded of the U-shaped rib plate units, the positioning and pressing of U-shaped ribs and robotic tack welding can be full-automatically controlled together, and the automatic assembling and tack welding system has the advantages that the assembly precision of the U-shaped ribs of orthotropic bridge plate units is high, the automatic assembly and production efficiency is high, and the quality of welding lines is stable.
Owner:CHINA RAILWAY SHANQIAO GRP CO LTD
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