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315results about How to "Guaranteed representation" patented technology
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Block-chain-based financial product transaction consensus method, node and system
The invention provides a block-chain-based financial product transaction consensus method, node and system. The method comprises: a first verification node receives a transaction consensus applicationsent by a transaction node and decrypts the transaction consensus application to obtain transaction information; the transaction certificate is verified by using a transaction certificate preset in the first verification node to determine whether transaction is legal or not; if so, the transaction information is logically verified by using a smart contract preset in the first verification node and whether the transaction logic is legal is determined; if so, the smart contract corresponding to the transaction information is executed, the transaction information is broadcasted to all second verification nodes in a built-in verification node list of the first verification node and a transaction consensus decision is initiated; voting information fed back by the second verification nodes within a preset verification cycle is received and whether the proportion of the consensus of the voting information exceeds a preset threshold is determined; and if so, a transaction consensus message issent to the transaction node.
Owner:INDUSTRIAL AND COMMERCIAL BANK OF CHINA
Intelligent word input method and input method system and updating method thereof
ActiveCN101013443AGuaranteed accuracyGuaranteed representationSpecial data processing applicationsInput/output processes for data processingUser inputThe Internet
The invention discloses an intelligent word-group input method in input system, including get the portfolio information between at least two basic words from the pre-set internet corpus, which including the combination relationship and adjacent same frequency of (the least two) words; generate multi-table according to the portfolio information; receive the user input encoding string, and segment the encoding string; get the combination information in the multi-table according to segmentation string, and extract the words with the corresponding relations in combination information as the candidate words. The invention can improve the first selected words hit rate of user input words, phrases, short sentences or long sentences to avoid ineffective repeat calculation process to improve the efficiency of the user input.
Owner:BEIJING SOGOU TECHNOLOGY DEVELOPMENT CO LTD
Multielement analysis device for on flowing detection and detection method
InactiveCN101004391AEasy to operateGuaranteed representationSpecial data processing applicationsMaterial analysis by transmitting radiationAnalytical controlMeasurement device
A multi-element analyzing device of on-line detection is prepared for erecting two types of agitators on measurement unit to eliminate off influence caused by air bubble in ore pulp and state variation and brought onto measurement for ensuring representativeness of measured ore pulp and simultaneously carrying out revision on concentration in mathematical model to make said analyzing device be not influenced by condition variation in measurement. Its detecting method is also disclosed.
Owner:DANDONG DONGFANG MEASUREMENT&CONTROL TECHCO
Method for distinguishing coating quality of medicine preparation
ActiveCN101713731AGuaranteed reasonableness and validityReduce distractionsComputing modelsColor/spectral properties measurementsBiomedical engineeringSupport vector machine
The invention belongs to the field of medicine preparations, which in particular relates to a method for distinguishing the coating quality. More concretely, the invention relates to a method for distinguishing the coating quality of a medicine preparation. In the method provided by the invention, a qualitative distinguishing model of the coating quality is quickly constructed by combining the methods of a near-infrared spectrum method, an interval principal component analysis method, a support vector machine method and the like, the comprehensive evaluation of the coating quality of the medicine preparation is realized, and the distinguishing accuracy basically reaches the requirement of industrial production. Relative to a traditional method or experiential judgment, the distinguishing method provided by the invention can quickly, nondestructively, reliably and accurately distinguish the coating quality of the medicine preparation in a coating process in an on-line way.
Owner:河北鑫民和质检技术服务有限公司
Early warning and monitoring device and monitoring method of mobile stench pollution
ActiveCN102928562AEasy accessAccurately obtainedTransmission systemsElectric powerEnvironmental resource managementIn vehicle
The invention relates to an early warning and monitoring device of mobile stench pollution. The device is composed of an on-line stench monitoring device, a stench wireless acquisition device, a stench ingredient detection device, a vehicle-mounted power supply device and a vehicle-mounted computer control center. Shockproof measures are adopted to protect instruments. The early warning and monitoring device is installed in a passenger car, the passenger car can be driven to a site of accident at any time to detect stench pollution and the early warning and monitoring device can also be arranged at the position of a factory boundary of a stench pollution source with potential pollution capacity to perform real-time monitoring on the stench pollution and perform early warning on the stench pollution. The early warning and monitoring device achieves real-time monitoring of stench pollution, tracking and recognition of possible sources or devices of stench pollutants and prediction of variation trend and pollution scope of the stench pollution, provides a corresponding contingency plan, supplies scientific support for rapid and efficient emergency measures of environmental management departments, and improves emergency disposal efficiency of stench pollution accidents.
Owner:天津市生态环境科学研究院
Methane profile orthogonal inversion method aiming at AIRS (atmospheric infrared sounder) hyper-spectrum satellite data
InactiveCN103744069AGuaranteed representationReduce distractionsMaterial analysis by optical meansElectromagnetic wave reradiationAtmospheric compositionAtmospheric sciences
Owner:INST OF REMOTE SENSING & DIGITAL EARTH CHINESE ACADEMY OF SCI
Linear spectral unmixing urban impervious surface remote sensing extraction method
InactiveCN106125091AGuaranteed representationHigh precisionElectromagnetic wave reradiationAlbedoData file
The invention provides a linear spectral unmixing urban impervious surface remote sensing extraction method comprising the steps that step one, remote sensing image material files are acquired and data preprocessing and water body masking are performed; step two, first data files are obtained from the remote sensing image material files through minimum noise fraction rotation; step three, the purity of each pixel in the first data files is calculated through the pixel purity index; step four, the pixels greater than the preset purity value are selected from the first data files through screening according to the preset purity value so that the pixels of high purity, i.e. second data files, are obtained; step five, pure pixels are selected by using the characteristic scatter two-dimensional model between different components of the second data files through combination of high-resolution images; step six, the proportion of each end member of each pixel is solved based on the end members of the step five; and step seven, mask processing is performed on low-albedo surface features in the unmixing result, and finally the processed low-albedo surface features and high-albedo surface features are added and then an impervious surface coverage graph is obtained.
Owner:GUANGZHOU INST OF GEOGRAPHY GUANGDONG ACAD OF SCI
Inertial differential unlocking spring impact type collector of bottom sediment sample
ActiveCN104849095AStrong reliabilityEasy maintenanceWithdrawing sample devicesWater flowDestructive sampling
The invention relates to an inertial differential unlocking spring impact type collector of a bottom sediment sample. The inertial differential unlocking spring impact type collector comprises an outer frame device, a nozzle sampling device, a spring impact device and an inertial differential unlocking device. According to the inertial differential unlocking spring impact type collector, the structural design of a chained inertial differential unlocking-spring impact device is utilized, so as to realize the purpose of collecting the bottom sediment sample in the condition of no extraneous source power, and on the basis of an elastic principle, the bottom sediment sample can be instantaneously collected, so as to avoid water erosion. According to the inertial differential unlocking spring impact type collector, the problem that an existing underwater sampling device has difficulty in considering the sampling representativeness and the adaptability to different bottom sediment samples on the basis that destructive sampling is reduced as far as possible can be solved. The inertial differential unlocking spring impact type collector can adapt to different water depth and current conditions and has the advantages of strong reliability and simplicity and convenience in maintenance; if the inertial differential unlocking spring impact type collector can be made into an array and is integrated with automatic lifting machinery, the purpose of quickly collecting bottom sediment samples in different positions with high throughput can be realized.
Owner:SHANGHAI RES INST OF CHEM IND +1
Virtual machine power consumption measuring method based on performance counter in cloud computation environment
InactiveCN103034525AGuaranteed representationReduce manpowerElectric devicesEnergy efficient computingParallel computingMicrosecond
The invention discloses a virtual machine power consumption measuring method aiming at a cloud computation system. The measuring method comprises the steps of firstly selecting out a performance counter set most representative in power consumption, then constructing a mapping relationship between a performance counter and physical device power consumption and a model by use of a multi-order successive approximation method, and thus obtaining a total power consumption measuring model of a virtual machine. The virtual machine power consumption measuring method has the advantages that the accuracy of the power consumption model of the virtual machine is increased remarkably by use of the method compared with that by use of the existing method, the sampling time accuracy in power consumption measurement is improved from a millisecond level to a microsecond level and therefore an effective support is provided for realizing fine-grained power consumption control and management of a cloud system.
Owner:HUNAN INSTITUTE OF ENGINEERING +1
Method for making rock bedding structure model based on 3D printing technology
InactiveCN105599300AGuaranteed representationAvoid time costAdditive manufacturing apparatusVolumetric Mass DensityData transmission
The invention provides a method for making rock bedding structure model based on a 3D printing technology. The method includes the following steps that N rock stratum three-dimensional models of the same property are designed with CAN software; the obtained three-dimensional models are subjected to layered processing and saved in the format of STL; data are transmitted to a computer, and N printing parameters and printing raw materials are selected; N models are printed continuously with a 3D printer, control software controls a printer nozzle to melt the materials according to layered information, spraying is conducted point by point, one layer of printing is completed, and the printer controls a software control platform to ascend along the Z axis to continue curing of subsequent printing layers till the model is obtained. According to the method, the 3D printing technology is utilized to rapidly make the rock bedding structure model stratum by stratum, rock stratums representing different density, composite particles and particle arrangement modes are concentrated into one model, defects existing in the stratums are printed accurately, a rock prototype can be adjusted according to research requirements, and time and economic cost of a small number of customized models are reduced.
Owner:CHINA UNIV OF PETROLEUM (BEIJING)
Hierarchical clustering method and system based on multistage layered sampling
ActiveCN103699678AGuaranteed representationImprove representationRelational databasesSpecial data processing applicationsData sourceInitial sample
The invention discloses a hierarchical clustering method and system based on multistage layered sampling. The method includes: using randomly-sampled initial sample sets as seeds to build layered inquiry strategies, and distributing corresponding sample number to each layer of inquiry strategies on the basis of the estimate variance minimum principle of each layer; using the layered inquiry strategies to perform layered sampling on data sources to obtain the representative sample sets with high sample representativeness; clustering the samples in the representative sample sets, and performing secondary sampling on the data sources on the basis the boundary points of the clusters to obtain uncertainty sample sets with high sample uncertainty; clustering on the basis of the collection of the initial sample sets, representative sample sets and the uncertainty sample sets to estimate the clustering center of the data sources. The method has the advantages that high representativeness and uncertainty of the samples are guaranteed through multistage layered sampling, the problem that randomly-sampled samples are poor in representativeness is solved, and the accuracy of data source clustering is increased.
Owner:神行太保智能科技(苏州)有限公司
Heavy-duty vehicle rapid portable emission measurement system and method
ActiveCN104849068ASimple structureLow costVehicle testingMoving averagePortable emissions measurement system
The invention relates to heavy-duty vehicle rapid portable emission measurement system and method. The system and the method use a rapid portable emission measurement system to carry out tests emphasis on NOx and CO2 concentration in tail gas. The NOx and CO2 concentrations in the tail gas are used to calculate a NOx emission factor based on per-unit CO2 emission, and then through quantity transformational relation between the NOx emission factor and a work-based window NOx specific emission, a heavy-duty vehicle emission value which can be directly compared with a reference limit value is derived. Compared with a relatively mature European work-based window method, the method eliminates calculation on the size of a work-based window and moving average work-based window specific emission, thereby greatly simplifying data analysis operation. The system and the method can more conveniently and rapidly determine NOx emission level of a heavy-duty vehicle, and are used for spot check and road inspection of heavy-duty vehicle emission.
Owner:CHINESE RES ACAD OF ENVIRONMENTAL SCI
Intelligent sample collecting device
ActiveCN105752470ARisks Affecting Mass AccuracyHigh security for collection and transferLidsNon-removalbe lids/coversLocking mechanismEngineering
The invention discloses an intelligent sample collecting device which comprises a machine frame. The machine frame is provided with a feed inlet. A rotatable rotating disc mechanism and multiple sample storage barrels used for collecting samples are arranged in a collecting cavity formed by the machine frame. The sample storage barrels are hung on the rotating disc mechanism. Each sample storage barrel is provided with a hinged barrel cover and an induction locking mechanism used for locking the barrel cover. The hinged position of the barrel cover is provided with an elastic part so that the barrel cover can bounce upwards to be opened when not locked. The feed inlet is provided with a liftable weighing mechanism. The weighing mechanism is provided with an induction unlocking assembly matched with the induction locking mechanism. When the rotating disc mechanism drives the sample storage barrels to rotate to the position below the feed inlet, the weighing mechanism raises to lift up the sample storage barrels, so that the induction locking mechanism induces an unlocking signal of the induction unlocking assembly to open the barrel covers for sample connection and weighing operation. The intelligent sample collecting device has the advantages that the structure is simple and compact, the intelligence degree is high, sample collection and transfer safety is high, sample collection quality precision is high, working efficiency is high, and the production cost is low.
Owner:HUNAN SUNDY SCI & TECH DEV
Modular motor vehicle exhaust pollutant onboard emission test platform
ActiveCN108007699AGuaranteed representationFully respond to emission characteristicsVehicle testingMaterial analysisModularityEmission standard
In order to meet different test requirements of pollutants, the invention provides a modular motor vehicle exhaust pollutant onboard emission test platform. In addition to an onboard emission test system required by a sixth-phase motor vehicle emission standard, the modular motor vehicle exhaust pollutant onboard emission test platform also includes one or more test modules arranged side by side and communicating with a motor vehicle exhaust pipe, and can realize multi-module combined measurement according to actual test requirements. In addition, an offline component sampling system samples offline samples from the motor vehicle exhaust pipe by a proportional sampling dilution system according to a certain exhaust gas flow proportion so as to ensure the representativeness of the offline samples and fully reflect the vehicle emission characteristics during the sampling period.
Owner:TSINGHUA UNIV
Assessment method of contribution of shellfish biology deposition to offshore environment sediment organic carbon
ActiveCN104318123AGuaranteed representationGuaranteed accuracyBiological testingSpecial data processing applicationsAnimal fecesTotal nitrogen
Disclosed is an assessment method of the contribution of the shellfish biology deposition to the offshore environment sediment organic carbon. The assessment method comprises adopting an indoor simulation experiment, collecting feces of typical shellfishes in different seasons, determining the organic carbon, the total nitrogen and the carbon isotope abundance in the shellfish biology deposition, performing analysis on a large number of data samples and building a shellfish biology sediment organic carbon traceability technology system; combining with the burial characteristics of the offshore culture zone sediment organic carbon and determining a potential source of the culture zone sediment organic carbon through a carbon isotope and carbon nitrogen ratio diagram; estimating the contribution of the shellfish biology deposition to the offshore carbon cycle based on a multiple mixed model. According to the assessment method of the contribution of the shellfish biology deposition to the offshore environment sediment organic carbon, the transition and transformation process of different sources such as the shellfish feces in the marine environment is fully considered and accordingly the final assessment result is close to reality and reasonable.
Owner:YELLOW SEA FISHERIES RES INST CHINESE ACAD OF FISHERIES SCI
Arc-shaped pipe based flow metering device and metering method for multiphase flow
ActiveCN103090917AGuaranteed representationFew facilitiesVolume flow proportion measurementVolume/mass flow by dynamic fluid flow effectEngineeringMechanical engineering
The invention relates to a flow metering device for multiphase flow. The flow metering device for multiphase flow comprises the following constructional elements: a pipeline containing at least one section of an arc-shaped pipe, wherein the cross section of the arc-shaped pipe is in a circular shape, the plane where the arc-shaped pipe is located is vertical-oriented, and the arc-shaped pipe is provided with at least one vertical-oriented cross section; a gamma-ray explorer, wherein the gamma-ray detector comprises a gamma-ray emitter and a gamma-ray detector, the gamma-ray emitter and the gamma ray detector are respectively arranged on the upper side and the lower side of the vertical-oriented cross section of the arc-shaped pipe in a distributed mode, gamma ray emitted by the gamma-ray emitter passes through in a radial or non-radial mode along the vertical-oriented cross section of the arc-shaped pipe and arrives at a gamma-ray receiver, and the gamma-ray explorer is a monoenergetic gamma-ray explorer or a dual-energetic gamma-ray explorer; and total volume flow measurement equipment, wherein the total volume flow measurement equipment is placed in the upstream or downstream of the arc-shaped pipe and is used for calculating multiphase flow total volume flow. The invention further relates to a method measuring each phase volume flow in multiphase flow by utilizing the flow metering device for multiphase flow.
Owner:LANZHOU HAIMO TECH CO LTD
Multiphase flow flowmeter
InactiveCN103076057AGuaranteed representationGuaranteed real-timeMaterial analysis using wave/particle radiationVolume flow measuring devicesAttenuation coefficientX-ray
The invention provides a multiphase flow flowmeter which comprises an each-phase-content measuring device and a multiphase flow velocity measuring device. The each-phase-content measuring device comprises an emitting device, a detector and a processor, wherein the emitting device can emit X rays of different energies to a multiphase flow body, the detector is used for detecting X rays exiting from the multiphase flow body, and the processor can calculate the content of each phase according to the attenuation coefficient of the X rays and the correlation between liquid content and oil-water ratio; and the processor is connected with the detector. The multiphase flow flowmeter provided by the invention can be used for metering the flow rate of oil, water and gas multiphase flow and can realize full non-contact measurement.
Owner:北京乾达源科技有限公司
Method for high-speed self-adaptive video keyframe extraction
ActiveCN104837031AFast extractionImprove processing performanceSelective content distributionSelf adaptivePattern recognition
The invention discloses a method for high-speed self-adaptive video keyframe extraction. The method comprises: 1) for each to-be-processed video file, resolving the video file to extract data frames whose type is KEY_FRAME; 2) according to actual requirements, selecting an extracted data frame whose type is KEY_FRAME, using the data frame as the first keyframe of the video file, and storing the data frame in a keyframe database; and then, calculating similarity of a subsequently extracted data frame whose type is KEY_FRAME and a previous keyframe of the video file in the keyframe database, if the similarity is smaller than or equal to a given threshold value, using the data frame in the type of KEY_FRAME as the keyframe of the video file, and storing the data frame in the keyframe database; if not, giving up the extracted data frame in the type of KEY_FRAME. The method greatly improves extraction speed of keyframes.
Owner:INST OF INFORMATION ENG CAS
Deceptive junk comment detection method oriented to user generated contents
ActiveCN103853744AGuaranteed to be comprehensiveIntegrity guaranteedWeb data retrievalSpecial data processing applicationsUser-generated contentWeb page
The invention discloses a deceptive junk comment detection method oriented to user generated contents. The method comprises the steps of 1) establishing a user comment information set for crawled webpages, and clustering to obtain a plurality of information regions, 2) calculating a label vector of each information region and sampling to obtain a sample set thereof, 3) labeling samples in each sample set to obtain a deceptive junk comment sample set and an unlabeled comment information sample set of each information region, 4) for each sample, searching for P samples most similar to the sample in the sample set of each information region and calculating the final feature vector of the sample, 5) selecting a machine learning method and establishing a deceptive junk comment detection model for each information region based on the final feature vector of each sample, and 6) performing deceptive junk comment detection on a newly crawled user generated content webpage by virtue of the deceptive junk comment detection model. The method improves the efficiency of detecting the deceptive junk comments.
Owner:COMP NETWORK INFORMATION CENT CHINESE ACADEMY OF SCI
Isothermal constant-speed sampling device of fly ash
InactiveCN103162993AAvoid condensationGuaranteed accuracyWithdrawing sample devicesPreparing sample for investigationEngineeringParticle-size distribution
The invention discloses an isothermal constant-speed sampling device of fly ash. A sampling head is arranged at the front end of a sampling gun; the sampling gun is arranged inside a flue; the tail part of the sampling gun is connected with a cyclone separator through a second heat-resisting metal hose; a first heat-resisting metal hose is sleeved outside the sampling gun and the second heat-resisting metal hose; one end of the first heat-resisting metal hose is communicated with the flue; the other end of the first heat-resisting metal hose is connected with an air extractor through a dust remover; a ball valve is connected to the lower end of the cyclone separator; the top part is connected with the filter; the filter is connected to a flow meter; the flow meter is connected with the air extractor; a heater is arranged outside the filter and the cyclone separator; one end of a first thermocouple is connected with a temperature transmitter; the temperature transmitter is connected with a temperature control system through a signal wire; one end of a second thermocouple is arranged inside the cyclone separator; and the other end of the second thermocouple is connected with the temperature transmitter. The heat-resisting efficient filter for isothermally sampling obtains actual particle size distribution of the fly ash in the smoke. The content of pollutants such as heavy metal in the fly ash of a sampling point is accurately reflected by the sampling device.
Owner:SOUTHEAST UNIV
Continuous and depth-adjustable sampling device
InactiveCN103076202ATakes up little horizontal spaceImprove the working environmentWithdrawing sample devicesFerrous metallurgyEngineering
The invention belongs to the field of ferrous metallurgy, and relates to a molten steel (or molten iron) sampling process, in particular to a sampling device, wherein continuous sampling can be performed and the sampling depth can be adjusted. The sampling device comprises an integrated control box 1 in the attached drawing, a base 2 in the attached drawing, a support 3 in the attached drawing, a rotating disc 4 in the attached drawing, rotating arms 5 in the attached drawing, gears 6 in the attached drawing, measuring guns 7 in the attached drawing, and sampling devices (various sampling devices) 8 in the attached drawing which are all connected by screw bolts and nuts in a welding way. The sampling device is characterized in that during a smelting procedure (such as LF furnace refining), continuous sampling can be performed, and the sampling depth at each time can be constant or the sampling depth can be adjusted. The sampling process can ensure the accuracy of a tapping sample and is representative.
Owner:UNIV OF SCI & TECH BEIJING
Soil environment quality monitoring method
InactiveCN104820887AScientific and reasonable layoutGuaranteed to be scientificResourcesSoil typeEnvironmental quality
The invention discloses a soil environment quality monitoring method. The method comprises the following steps: 1) taking a to-be-monitored zone as a scope, uniformly dividing a target land type layer in a geographic information system into a plurality of rectangular grids, and taking central points of the grids, main land types of which are target land types, as initial monitoring point positions; 2) according to a present land use situation, performing position adjustments on the initial monitoring point positions until the land types of the initial monitoring point positions acquired in the step 1) are the target land types; 3) for the same grid, replacing the initial monitoring point positions with recent historic monitoring point positions as monitoring point positions; according to the land types, performing adjustments on the monitoring point positions until the monitoring point positions cover soil types of main target land types; and taking the monitoring point position after the adjustments as monitoring points of target lands. The method disclosed in the invention uses the GIS special analysis technology, improves soil environment quality monitoring accuracy and representativeness, optimizes the number of cultivated soil environment quality monitoring distributed point, and is easy to operate and implement.
Owner:CHINA NAT ENVIRONMENTAL MONITORING CENT
Image retrieval method and related device
PendingCN111914113AImprove accuracyGuaranteed representationText database queryingSpecial data processing applicationsInformation transmissionVisual technology
The invention discloses an image retrieval method and a related device, which can be applied to an artificial intelligence computer vision technology. The method comprises the following steps of acquiring image features and text features; then constructing similarity nodes so as to transmit similarity information between similarity nodes; further filtering the similarity nodes according to the weight information; and determining a target similarity value based on the updated similarity node and the filtered similarity node so as to determine a corresponding text retrieval result in response tothe input of the target image. Therefore, a cross-modal information retrieval process is realized, and due to similarity information transmission between the global similarity features and the localsimilarity features and semantic weight screening in the retrieval process, the accuracy of the similarity features is improved, so that the image retrieval accuracy is improved.
Owner:DALIAN UNIV OF TECH +1
Automatic inspection system for fast grain storage
ActiveCN107521982AFully automatedReduced sampling timeWithdrawing sample devicesBulk conveyorsAgricultural engineeringGrain storage
The invention discloses an automatic inspection system for fast grain storage. The system comprises an automatic sampling device, an automatic testing device and a control device, wherein the automatic testing device comprises a grain conveying mechanism and a grain testing mechanism; the grain conveying mechanism comprises a first grain buffer, a second grain buffer, grain conveying pipelines and a power air source; the grain test mechanism comprises an impurity detection device and a moisture detection device; a discharging port of the automatic sampling device is connected with a feeding port of the first grain buffer; a discharging port of the first grain buffer is connected with a feeding port of the impurity detection device through a valve; a discharging port of the impurity detection device is connected with a feeding port of the second grain buffer through one grain conveying pipeline; the moisture detection device is arranged below the second grain buffer; and a discharging port of the the second grain buffer is connected with a feeding port of the moisture detection device through a valve. According to the automatic inspection system for fast grain storage, automatic sampling and testing in the grain purchasing process is realized, so that the waiting time of grain storage is reduced, and the grain purchasing efficiency is improved.
Owner:ZHENGZHOU XINSHENG ELECTRONICS TECH
Water quality bacteria sampler
InactiveCN101750236AGood depth positioningGuaranteed representationWithdrawing sample devicesEnvironment waterWater quality
The invention discloses a water quality bacteria sampler for environment water quality monitoring, which comprises a bend main frame; both sides of the main frame are provided with long slots, and the edging of one end thereof is provided with a through hole; both sides of the main frame are provided with a mobile or a fixed movable frame, and the middle part of each movable frame is provided with a limit hole; the open ends of both sides of the main frame are provided with mobile or fixed tubular bases, supports are arranged in the bases, and the supports are provided with hammers; a steel wire rope passes through the through hole of the main frame; a sleeve is movably sleeved with outside the steel wire rope, and one end of the sleeve is fixed with the main frame; one end of the steel wire rope which passes through the through hole is connected with a chuck; and one surface of the chuck which is towards to the movable frame is provided with a clamping side which can tightly clamp a sampling bottle cap. The water quality bacteria sampler has the advantages of simple and reasonable structure, low cost and convenient operation, can prevent sampling stain, and ensure the representativeness and the comparability of a sample.
Owner:SHENZHEN ENVIRONMENTAL MONITORING CENT
Determination method of biochemical characteristic map of microorganism carrier for sewage treatment
The invention discloses a determination method of a biochemical characteristic map of a microorganism carrier for sewage treatment, and belongs to the field of sewage treatment technology. The method employs SBBR technology, biofilm culturing is synchronously carried out for three sets of parallel reactors or more, operation is stably carried out at the same initial influent substrate concentration, and mean values of effluent COD, ammonia nitrogen and other indices as well as biophase change are taken; influent substrate concentration is changed sequentially with repeat operation for detection; the influent substrate concentration is used as abscissa, the effluent COD and the ammonia nitrogen mean value are used as ordinates, an influent and effluent concentration change scatter diagram of the tested carrier is drafted, and a set of fitting curves is obtained; sewage types are changed, and a set of curves of other sewage types is obtained by repeating the operation; the biochemical characteristic map of the microorganism carrier for sewage treatment is formed by composing the curves on one coordinate system. The map provides a quantitive basis for carrier type selection and volume load calculation in sewage treatment engineering, and indicates a direction for development of novel carriers.
Owner:ANHUI UNIVERSITY OF TECHNOLOGY
Reservoir before-dam water body water temperature time-space distribution rule observation method
ActiveCN105222922AEnsure systemicGuaranteed reliabilityThermometer applicationsTime distributionTime space
The invention discloses a reservoir before-dam water body water temperature time-space distribution rule observation method, and belongs to the technical field of water power water engineering monitoring. The method comprises a reservoir before-dam water body water temperature time distribution rule observation and reservoir before-dam water body water temperature space distribution rule observation. The reservoir before-dam water body water temperature time distribution rule observation also comprises vertical water temperature distribution observation on a hydrologic year basis and water temperature time distribution rule observation on a daily basis. The reservoir before-dam water body water temperature space distribution rule observation also comprises water temperature observation vertical line arrangement and measuring point arrangement on a water temperature observation vertical line. According to the technical scheme provided by the invention, according to the reservoir before-dam water body vertical water temperature distribution rules on a hydrologic year basis and on a daily basis, such factors as before-dam water body flow-state distribution conditions, observation personnel and instrument safety guarantees and the like are taken into full consideration, and by use of the reservoir before-dam water body water temperature time and space distribution rule observation method, observation of reservoir before-dam water body water temperature time-space distribution rules is effectively covered, such that the accuracy of the overall observation result of reservoir water temperature distribution rules is guaranteed.
Owner:CHINA POWER CONSRTUCTION GRP GUIYANG SURVEY & DESIGN INST CO LTD +1
Video key frame extraction method, system and device based on multi-view features
ActiveCN110472484AExtract comprehensiveThe feature value description screen is comprehensive and sufficientDigital data information retrievalCharacter and pattern recognitionComputer visionCluster result
The invention discloses a video key frame extraction method, system and device based on multi-view features, and the method comprises the steps: setting a sampling rate to sample an original video stream, and extracting the video stream into a plurality of frames of images; calculating a Hamming distance of hash values of every two continuous adjacent frames of images for all the extracted framesby applying an average hash method AHA, if the Hamming distance is greater than a threshold value, determining that a shot boundary is formed, and otherwise, not dividing the shot boundary; respectively extracting three characteristic values, namely an RGB characteristic value, an HSV characteristic value and an LBP characteristic value, from each frame of image extracted in the sampling step; performing single-core clustering calculation on the extracted RGB, HSV and LBP feature values in each lens according to a lens division result in the lens division step, performing summation operation after normalization processing on clustering results, and taking a frame with a minimum summation result as a key frame of the lens. The extracted key frame is more representative, the robustness of the algorithm is enhanced, and the readability of video abstract extraction is improved.
Owner:SHANDONG NORMAL UNIV
Beltless full-automatic mechanical sampling system for trains
PendingCN109946113AImprove operational efficiencyReduce moisture lossWithdrawing sample devicesPreparing sample for investigationProcess engineeringCrusher
The invention particularly discloses a beltless full-automatic mechanical sampling system for trains. The system comprises an operation platform, a sampling mechanism and an integrated sample preparation unit. The operation platform is located above train rails; the full-sealed integrated sample preparation unit comprises a feeder, a crusher, a fixed mass division machine and a sample retaining barrel which are sequentially arranged from top to bottom; the sampling mechanism is used for collecting materials from train carriages and conveying the materials to the feeder, the feeder sends the materials to the crusher uniformly and continuously, the crusher crushes and conveys the materials to the fixed mass division machine, the fixed mass division machine divides the materials into samplesand waste, the samples are retained in the sample retaining barrel, and the waste is conveyed to carriages through a waste return unit. The waste return unit can replace manpower to treat the waste regularly, so that the operation efficiency is improved.
Owner:INFINITY INTELLIGENCE & INFORMATION (SUZHOU) TECH CO LTD
High-accuracy as-fired coal sampling and weighing and checking integrated system and method
PendingCN106226125AGuaranteed uniformityGuaranteed representationWithdrawing sample devicesWeighing apparatus for continuous material flowIntegrated systemsEncryption
The invention discloses a high-accuracy as-fired coal sampling and weighing and checking integrated system and method, and belongs to the technical field of as-fired coal sampling and measuring. The as-fired coal sampling and weighing and checking integrated system is composed of a coal sampling device, a coal splitting and returning unit, a weighing and checking unit and a computer control unit; the computer control unit controls the coal sampling device to conduct automatic coal sampling, a coal sample enters the coal splitting and returning unit, standby samples are increased after splitting and sample reserving are conducted through a splitting device, the standby samples are subjected to automatic packaging and then sprayed with two-dimensional codes for encryption, and therefore random inspection and checking can be conveniently conducted. A rejected sample enters the weighing and checking unit and is weighed in a weighing coal bunker and on a belt scale separately, and the computer control unit conducts weighing and checking on the belt scale according to a weight signal fed back from the weighing coal bunker. According to the high-accuracy as-fired coal sampling and weighing and checking integrated system and method, automation and accuracy from coal sampling to belt scale checking can be achieved, and a good technical reference is provided for completing automatic sampling work on as-fired coal and improving the measuring accuracy of the as-fired coal.
Owner:NORTH CHINA ELECTRIC POWER UNIV (BAODING) +1
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