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252results about How to "Solve pain points" patented technology
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Electronic evidence preservation system and method based on block chain technology
InactiveCN107888375ASolve pain pointsFix bugsEncryption apparatus with shift registers/memoriesDigital data protectionOriginal dataComputer module
The invention discloses an electronic evidence preservation system and method based on the block chain technology. The preservation system comprises an evidence storage terminal and a block chain network. The evidence storage terminal comprises a hash operation module and an electronic signature module. The electronic data are uploaded to the evidence storage terminal, the evidence storage terminal performs hash operation on the uploaded electronic data to generate unique feature data of a fixed length of original data; then private key signature is performed on the generated data by using theasymmetric encryption technology, and the generated data are sent to the block chain network; and the block chain network performs primary consensus on the uploaded data and packs the uploaded data into blocks, and synchronously sends the blocks to nodes in the network for distributed storage. By establishing an evidence storage alliance by using the block chain technology, the electronic evidence preservation system has the characteristics of digitalized encryption, centralized grading, anti-tampering, data zero loss and so on. Each node in the block chain can preserve a complete block chaindata copy and witness the chain status of the blocks, so that the centralization risk can be effectively avoided.
Owner:SHENZHEN XIEWANG TECH CO LTD
Construction and operation method of container cloud platform system
ActiveCN105245373ATake advantage ofSolve pain pointsData switching networksThird partyOperating system
The invention relates to a construction and operation method of a container cloud platform system. The construction and operation method comprises the following steps: (1) the system is constructed; (2) access shunting is carried out on a control instruction and a service instruction; (3) a container cluster scheduling module forwards an access request to a specific container, and the specific container carries out service processing on the access request, returns the access request to the container cluster scheduling module, and then returns a processing result to a caller; (4) a host containerization engine module containerizes a host, records and maintains an application operated in the current platform and an application operation example list, supports and processes the control instruction, forwards instruction information, and monitors and feeds back the state of an application operation example; (5) a general controller module processes the control instruction of a container cloud platform; (6) an application health management module monitors the application condition; and (7) a message bus carries out message communication of a cloud platform device. The construction and operation method provided by the invention is used for packaging and operating dependent terms of third party applications with a container as a unit for achieving isolated operation and avoiding mutual interference, and the system resources of the host are used more fully.
Owner:TIANJIN RICHSOFT ELECTRIC POWER INFORMATION TECH
Block chain fragment storage and query method based on erasure codes
ActiveCN109871366AQuick searchEfficient queryFile access structuresSpecial data processing applicationsByzantine fault toleranceErasure code
The invention discloses a block chain fragment storage and query method based on erasure codes. When the block storage reaches a certain threshold, a block is sliced and stored. The method comprises the following steps that firstly, the meta-information of the block file fragments is consented, after the consensus is achieved, the erasure codes are utilized to fragment the block files within thethreshold value into the data blocks and the check blocks, and each node stores one part of the data blocks and the check blocks, so that the storage cost is reduced, and meanwhile, the data fault tolerance under the Bayer fault tolerance is also realized. Besides, when the block files are fragmented, the corresponding index is established, and the corresponding data block or check block can be queried from each node by utilizing the index, so that the block data can be queried efficiently under the condition that the storage space is saved.
Owner:EAST CHINA NORMAL UNIV
Personalized recommendation method and system based on probability model and user behavior analysis
InactiveCN105574216AAccurately characterize acquisition needsSolve overloadSpecial data processing applicationsPersonalizationOriginal data
The invention discloses a personalized recommendation method and system based on a probability model and user behavior analysis. The method includes the steps that article information and article attribute information are extracted, and operation behaviors of users on articles are extracted; interest points are obtained according to the article attribute information and the operation behaviors of the users on the articles; user interest similarity is obtained according to the operation behaviors of the users on the articles, and similar users are obtained; a decay factor is obtained according to the operation behaviors of the users on the articles based on the time dimension, and a user model is set up; interest characteristic information, at all dimensions, of the users is obtained according to the user model; after filtering, a recommendation algorithm is adopted to generate results to be recommended, and algorithm fusion is conducted to obtain personalized recommendation results of the users. After original data is preprocessed, the user model is set up, the interest points of the users and essential information acquisition requirements are depicted accurately to provide accurate personalized recommendation, and therefore the problems of information overload and long-tail articles in the network are solved.
Owner:DATAGRAND TECH INC
Student answer information real-time collection and efficient and intelligent correcting system and use method in teaching process
InactiveCN105469662ARealize teaching students in accordance with their aptitudeSolve pain pointsElectrical appliancesComputer sciencePhysical exercise
Provided is a student answer information real-time collection and efficient and intelligent correcting system and use method in a teaching process, belonging to a teaching system. A teacher lesson preparation module is used for teachers to compile exercises, input standard answers and scores, and upload data to a server; students upload answers to the server at student clients; an efficient and intelligent correcting module is used for automatically correcting objective questions, preprocessing subjective questions, automatically correcting the questions capable of being intelligently corrected, sending the questions incapable of being intelligently corrected to teachers for correction, and transmitting correction results to the server; the server feeds back the correction results to the student clients. The system and method can realize ''networking, digital and customized'' education, allow students to ''learn anywhere and anytime'', deeply fuse with current education, reach the effect of ''classroom application, regular application, and universal application'', and be easily and extensively copied in areas with poor education resources to realize educational equity and teaching in accordance with the aptitude of students.
Owner:黄道成
Internet-of-things communication method and a cloud gateway
ActiveCN109167829AImprove real-time performanceSolve the pain points of access managementNetwork connectionsProtocol for Carrying Authentication for Network AccessData transformation
The embodiment of the invention provides an Internet-of-things communication method and a cloud gateway. The method comprises the following steps: a data acquisition process: acquiring industrial datacollected by network equipment in a heterogeneous network; a protocol conversion process: analyzing the industrial data, and converting the industrial data with different communication protocols to OPC UA standard data, and then converting the industrial data to MQTT protocol data; a cloud transmission process: sending MQTT protocol data to cloud platform; a task scheduling process: triggering protocol conversion task generation after data acquisition process; triggering the generation of cloud transmission tasks after the protocol conversion process; storing the protocol conversion tasks andcloud transmission tasks in the task queue according to the generation time sequence, and triggering execution of the corresponding process by calling the non-blocking task scheduling function of thetasks in the task queue in turn. The embodiment of the invention realizes the communication transmission of the Internet-of-thigns in a non-blocking mode through a single gateway, and improves the real-time property of the communication of the Internet-of-things. Industrial data cloud services with different protocols are implemented.
Owner:NORTH CHINA UNIVERSITY OF TECHNOLOGY
Coating as well as preparation method and application thereof
ActiveCN105176149AGood dispersionImprove absorbing performanceRadiation-absorbing paintsMicrowaveAdhesive
The invention relates to the field of microwave ovenware coatings, and discloses a coating which comprises a wave-absorbing material and an adhesive, wherein the adhesive is at least one of titanium dioxide sol, silicon dioxide sol, aluminum oxide sol and silicon-aluminum sol. The invention further discloses a preparation method of the coating. The preparation method comprises the following step: in the presence or absence of an additive, mixing the wave-absorbing material with the adhesive. In addition, the invention discloses an application of the coating in preparing microwave ovenware. As the sol is taken as the adhesive, dispersion of the wave-absorbing material can be improved, a thinly coated layer without resin and an ovenware coating which is good in wave absorbing property and antibacterial property can be prepared, problems (that is, when a conventional ovenware wave-absorbing material is used at a relatively high temperature, harmful substances can be easily generated, the conventional ovenware wave-absorbing property and antibacterial property are poor, the appearance attractiveness can be affected and the like) of the conventional ovenware wave-absorbing material can be comprehensively solved, relatively good product experience can be brought to an ovenware user, and thus more and more customers are willing to make baked and barbecue food by using the ovenware.
Owner:GUANGDONG MIDEA KITCHEN APPLIANCES MFG CO LTD +1
Handhold type ultrasonic diagnosis system with remote diagnosis and remote control functions
InactiveCN106326661ASolve pain pointsImprove the efficiency of medical servicesInfrasonic diagnosticsSonic diagnosticsDiseaseRemote control
The invention relates to a handhold type ultrasonic diagnosis system with remote diagnosis and remote control functions. The handhold type ultrasonic diagnosis system comprises a handhold type b-ultrasonic device, a doctor end app (application), a remote medical server and an expert end app, wherein a doctor holds the handhold type b-ultrasonic device and the doctor end app; an expert holds the expert end app; the remote medical server is used for providing storage and query services for the app end. The handhold type ultrasonic diagnosis system has the advantage that the medical expert can monitor and instruct the operation process of all grass-roots doctors, judge the diseases of a patient according to the patient data uploaded by the doctor, provide the accurate analysis result and diagnosis information, instruct the doctors to perform standard ultrasonic diagnosis process, instruct the doctors to adjust the parameters of an ultrasonic image, and periodically push the ultrasonic knowledge training information to the grass-roots doctors, so that the efficiency of the medical services is improved, and the problem of the grass-roots doctors is effectively solved.
Owner:WUXI HAIYING ELECTRONICS MEDICAL SYST
Binary channel person-card combined smart lock control method and system
InactiveCN107967741APrevent theftAvoid crackingCharacter and pattern recognitionDigital data authenticationThe InternetControl channel
The invention discloses a binary channel person-card combined smart lock control method and system. Through use of a cloud<+> end technology architecture and a remote control system deployed at the cloud end, the SaaS service is provided. Through the biometric feature recognition and database comparison technologies such as an Internet ID decryption technology and a human face recognition technology, the lock device is managed and controlled in a way of separation of an authentication channel and a control channel so that the problems of rental housing management and use are solved and the manageability, safety and reliability are higher. The authentication channel and the control channel are relatively independent so that the stealing and cracking of data based on lawbreakers are prevented and the system is safe and reliable. The narrowband low-power control channel keeps quasi real-time on-line control of the smart lock at low power, improves the safety, reliability and manageabilityof the person-card combined smart lock and can be widely used for rental housing, public rental housing, rental housing, hotels, banking, electricity, railways, petrochemicals, companies and operators.
Owner:孟庆国
A high-speed railway foreign matter invasion detection device and method based on FPGA and deep learning
InactiveCN109697424AImprove effectivenessAccurate segmentationScene recognitionNeural learning methodsEngineeringImage segmentation
The invention discloses a high-speed railway foreign matter invasion detection device and method based on FPGA and deep learning, the device comprises a video acquisition module, an image storage module, two data processing modules and an early warning feedback module, and the video acquisition module is used for acquiring a high-speed railway track monitoring video in real time; the video processing module I is used for training the marked training set by using an improved ICnet neural network to obtain ICnet neural network weights, completing the construction of a track region segmentation model, and dividing a track region of a video into monitoring regions with different security levels; the video processing module II is used for carrying out target detection on the track area by utilizing a target recognition neural network; and the early warning feedback module is used for continuously transmitting each frame of target and image segmentation result to the FPGA for calculation andanalysis, and performing semantic analysis on intrusion behaviors. According to the invention, foreign matter invasion along the railway can be accurately monitored in real time, the actual needs ofthe railway department are met, and the operation safety of the high-speed railway can be effectively ensured.
Owner:ZHEJIANG UNIV
Method and device of intelligent pig group housing and weighing, electronic equipment and storage medium
ActiveCN109632058ASolve pain pointsOvercoming various disadvantages of weight measurementWeighing apparatus for materials with special property/formOther apparatusElectric equipmentComputer science
The invention provides a method and device of intelligent pig group housing and weighing, electronic equipment and a storage medium. The method comprises the following steps that S1, image informationof a group housing fence of a pig farm to be subjected to intelligent group housing measurement is acquired; S2, image information of each pig in the group housing fence is acquired according to theimage information of the group housing fence; and S3, according to the image information of each pig in the group housing fence, a preset weight measurement model is adopted, the weight information ofeach pig in the group housing fence is obtained, wherein the preset weight measurement model is obtained based on image sample inputting data and weight sample result data of the pig in the group housing fence. The method of intelligent pig group housing and weighing can effectively solve the stress reaction problem caused by the fact that the pig are driven to be weighed on a common weighbridgein an existing pig housing process.
Owner:BEIJING FOCUSED LOONG TECH CO LTD
Audio recognition method and terminal
ActiveCN106157970ARealize switchingSolve pain pointsSpeech analysisSubstation equipmentPulse-code modulationComputer terminal
The invention provides an audio recognition method which comprises the following steps: receiving an audio recognition request; if a current terminal is detected to play an audio clip, grabbing pulse code modulation data through a hardware abstraction layer; sending the pulse code modulation data to an application program interface for recognition. The invention further provides a terminal which comprises a request receiving unit, an audio detection unit, a pulse code modulation data acquiring unit and a data sending unit, wherein the request receiving unit is used for receiving the audio recognition request; the audio detection unit is used for detecting whether the current terminal displays the audio clip or not; the pulse code modulation data acquiring unit is used for grabbing the pulse code modulation data through the hardware abstraction layer when the current terminal is detected to play the audio clip; the data sending unit is used for sending the pulse code modulation data to the application program interface for recognition. According to the audio recognition method provided by the invention, internal audio streams and external environment sound can be switched and quickly recognized and can also be quickly invoked under any interface of a system, so that the user experience is enhanced.
Owner:上海麦克风文化传媒有限公司
Method for determining adhesion failure of output contactor of direct-current charging pile
InactiveCN108254682AReduce hardware costsLow costCircuit interrupters testingContactorElectrical battery
The invention relates to a method for determining an adhesion failure of an output contactor of a direct-current charging pile. Three states including a state before charging, a charging state, and astate after charging are provided. According to the determination method, different processing steps are provided for the three kinds of states. Before charging, the following steps are performed: a charging pile is started for charging, a direct-current output contactor is disconnected, and a battery loop voltage value of an electrical vehicle is determined; if the battery has no voltage, startupis carried out and a charging module is started, and the voltage of the charging module boosts to be a designated voltage; the battery voltage value is determined, if the battery voltage is equal toa module voltage, the output contactor is closed in an adhesion state; if the battery has no voltage, contact state normality information is outputted and a next-step detection is carried out; the output contactor is closed, the battery voltage value is determined again, if the battery has no voltage, the output contact is closed in an adhesion state; and if the battery voltage is equal to the module voltage, the output contactor state is normal and next-step insulation detection and charging are carried out. According to the invention, a set of complete detection methods is provided for threedifferent states including the state before charging, the charging state, and the state after charging, so that an adhesion failure state of the output contact is determined.
Owner:长园深瑞继保自动化有限公司
Blockchain based coordinated officing method and system and computer readable storage medium
ActiveCN108388988AImprove efficiencySimplify the handling processFinanceResourcesEcological networkSmart contract
The invention discloses a blockchain based coordinated officing method. The method comprises the following steps that a server sets function authority information of different post nodes in a blockchain ecological network via intelligent contracts; when an affair to be handled is received, the server obtains information of posts related to the affair; the server segments the affair to be handled via the intelligent contracts based on the post information and the function authority information, so that sub affairs and post node information corresponding to the sub affairs are obtained; and theserver send the sub affairs to the post nodes corresponding to the sub affairs on the basis of the post node information. The invention also discloses a blockchain based coordinated officing system and a computer readable storage medium. The affair to be handled is segmented, so that different post nodes carry out officing in parallel, and the efficiency of coordinated officing is improved.
Owner:深圳智乾区块链科技有限公司
Method and a device for realizing centralized caching of business system data
ActiveCN109656956AQuick responseImprove experienceDigital data information retrievalInput/output to record carriersData accessData storing
The invention discloses a method and a device for realizing centralized caching of service system data in the Data access technology field, The technical problem to be solved by the invention is how to realize caching of hotspot data and centralized storage and management of cached data. According to the technical scheme, the method for achieving centralized caching of the service system data comprises the steps that a centralized data caching module and an API interface are additionally arranged on a server, and the centralized data caching module adopts a Redis open source Key- The Value database is used for storing cached hot spot data, an API interface provided by the server to the outside can meet the access of an HTTP protocol and an NETTY protocol, and the server can be used for accessing a Redis open-source Key-. The hot data stored in the Value database is inquired, updated and deleted, and the hot data in the centralized data caching module can be visually managed through theWeb management end of the server. The invention also discloses a method for realizing the centralized caching of the service system data.
Owner:INSPUR QILU SOFTWARE IND
Variable frequency air conditioner indoor unit, variable frequency air conditioner outdoor unit, variable frequency air conditioner system and outdoor unit parameter remote upgrading method
PendingCN111309362AIncrease hardware costRemote upgrade function hasMechanical apparatusSoftware engineeringAutomotive engineeringCommunications protocol
The invention relates to an air conditioner outdoor unit parameter upgrading technology, and discloses a variable-frequency air conditioner indoor unit, a variable-frequency air conditioner outdoor unit, a variable-frequency air conditioner indoor unit system and a variable-frequency air conditioner outdoor unit parameter remote upgrading method. Existing hardware and existing communication speedare utilized, variable-frequency air conditioner outdoor unit parameter remote upgrading is achieved by modifying software, and therefore the problems existing when maintenance personnel detach the outdoor unit from home to replace a mainboard or refresh the software are solved. According to the method, the outdoor unit control parameters are separated from the outdoor unit control program, and when the outdoor unit runs, the control program calls the required control parameters from the data flash. An upgrading instruction is added in a communication protocol of an indoor unit and an outdoorunit, when parameters of the outdoor unit need to be upgraded, a server firstly upgrades the indoor unit through WiFi to enable indoor unit software to contain new control parameters of the outdoor unit, and then the indoor unit sends the new control parameters of the outdoor unit to the outdoor unit through the communication protocol. The method is suitable for remotely upgrading the air conditioner outdoor unit of the user in various environments.
Owner:四川长虹空调有限公司
Concrete test block anti-counterfeiting management system and method
PendingCN111461736AGuarantee authenticityRealize sampling anti-counterfeitingCo-operative working arrangementsCommerceFull life cycleInformation sharing
Owner:四川广聚其力电子科技有限公司
Input equipment for intelligent terminal and intelligent terminal
InactiveCN107961532AImprove shooting accuracyImprove agility and accuracyInput/output for user-computer interactionVideo gamesSingle useVisual field loss
The invention provides input equipment for an intelligent terminal and the intelligent terminal. The input equipment is detachably connected to the intelligent terminal and comprises a first operationpart, a second operation part and a third operation which are connected in sequence, the intelligent terminal is clamped between the first operation part and the third operation part, the intelligentterminal covers the second operation part, the first operation part comprises a rocker, the second operation part comprises a keyboard, and the third operation part comprises a mouse. The input equipment for the intelligent terminal has multiple functions of the keyboard, the mouse, the rocker and the like, can be clamped to the two ends of the intelligent terminal for whole use and can also be detached for single use, the mouse conducts shooting aiming and precise operation, touch control click is conducted through multiple operation buttons on the keyboard, blind operation is conducted conveniently, and sharp, quick and accurate operation without errors and a good visual field in a game are guaranteed.
Owner:BLACKSHARK TECH NANCHANG CO LTD
Building engineering comprehensive data acquisition, analysis and remote uploading system
PendingCN110310210ASolve pain pointsRealize all-round real-time monitoringData processing applicationsAlarmsVideo monitoringObservation data
The invention discloses a building engineering comprehensive data acquisition, analysis and remote uploading system. The system comprises a cloud server, an engineering data acquisition system, a construction site data transfer machine, a terminal system, a video monitoring system and a face recognition access control system. The system is used for collecting the original observation data from different devices, decoding the data of different devices, integrating and interweaving the data into one kind of information, the information is transmitted to a server via a network, and the server compares and processes the various kinds of information via a specific algorithm, analyzes the correctness and the future risk condition of the information and arranges and feeds back the information toa terminal user.
Owner:广西越知网络股份有限公司
Fuel gas rapid water heater with automatic water mixing device
InactiveCN107084534AAvoid water temperature fluctuationsSolve pain pointsWater heatersWater storage tankWater flow
The invention discloses a fuel gas rapid water heater with an automatic water mixing device. The fuel gas rapid water heater comprises the automatic water mixing device connected at the water outlet end of the fuel gas rapid water heater. The automatic water mixing device comprises two water flow branches, a first temperature sensor, a first water proportional valve, a second water proportional valve, a second temperature sensor, a water storage tank, a third temperature sensor and a controller. A three-way joint is connected at the water outlet end of the fuel gas rapid water heater; one end of the three-way joint is connected with the water inlet end of the water storage tank, and the other end of the three-way joint is connected with one of the water proportional valves; the water outlet end of the water storage tank is connected with the other water proportional valve; the water proportional valves are utilized to adjust the magnitude of the water amount, and the water storage tank neutralizes the water mixing ability; the water temperature fluctuation caused at the time of starting again and changing of the water amount is solved fundamentally while hot water flows out rapidly; and the problem of the fuel gas rapid water heater is solved effectively, performance of the fuel gas rapid water heater is improved, and developing of the fuel gas rapid water heater is facilitated.
Owner:GUANGDONG MACRO GAS APPLIANCE
Identification and correction method of zero error of wind vane of wind turbine generator
ActiveCN111322205AIncrease power generation capacityImprove performanceWind motor controlMachines/enginesData setControl system
The invention relates to an identification method of the zero error of a wind vane of a wind turbine generator. The identification method includes the steps that operation data of the wind turbine generator in a demand period are read as an initial data set; operation data at the time of normal operation of a yaw control system are screen out from the initial data set as the data set to be analyzed; the data set to be analyzed is divided into N subsets at a certain yaw error interval; the quantized power performance index of each subset is calculated separately; the subset corresponding to themaximum value of the quantized power performance index is taken, and the upper bound and the lower bound of the yaw error are selected in the subset and averaged, that is, an identification value ofthe zero error of the wind vane of the wind turbine generator. The identification method is based on data driving, has high universality, scalability and portability, has great economic value and application significance for improving the performance of wind turbine generators, and has high theoretical research and practical application value on improving the power generation performance of wind turbine generators based on data analysis means.
Owner:风脉能源(武汉)股份有限公司 +1
Adaptive PCB plate defect visual positioning detection and classification system
ActiveCN109839385ASolve pain pointsHigh precisionOptically investigating flaws/contaminationTemplate matchingMaterial resources
The invention provides an adaptive PCB plate defect visual positioning detection and classification system. A whole set of processes of PCB detection is covered. The system comprises an offline pre-processing contour point attribute classification stage, online PCB whole plate alignment, defect detection and defect classification. A template matching method is used to align a whole plate, and a speed is fast and precision is high. A contour out-of-tolerance algorithm is used to detect a defect, the precision reaches a sub-pixel level, the speed is fast, and universality is high. Attribute classification is performed on contour points so as to satisfy different tolerances generated because different types of defects match with different detection standards. In the invention, a detection speed and precision of a PCB are increased, detection efficiency is effectively improved, false detection or leak detection conditions of defects are reduced, the automatic detection of PCB surface defects is realized, manpower, material resources and financial resources are reduced, and an production automation degree is increased.
Owner:FOSHAN NANHAI GUANGDONG TECH UNIV CNC EQUIP COOP INNOVATION INST +1
Personal social credit scoring method based on government administration data and application
The invention discloses a personal social credit scoring method based on government affairs data and applications, which adopts linear regression and linear programming methods and uses government affairs big data as original parameters to model personal credit status and determine relevant data through subdivision models of various dimensions. The weight, the final personal social credit score. This improves the current state of the art that the user's credit evaluation method is biased towards personal financial data, and cannot fully quantify the current situation of evaluating personal social integrity.
Owner:惠国征信服务股份有限公司
Subway brake shoe fault detection method based on three-dimensional point cloud
ActiveCN113808133AImprove comprehensiveness and reliabilityGuaranteed robustness and measurement accuracyImage enhancementDetails involving processing stepsBrake shoeEngineering
The invention discloses a subway brake shoe fault detection method based on three-dimensional point cloud. The method specifically comprises the following steps: acquiring three-dimensional point cloud data of a brake shoe part by using a three-dimensional industrial camera; performing down-sampling processing on the point clouds and controlling the number of the point clouds; after down-sampling, calculating the center of mass, traversing each point, calculating the distance between each point and the center of mass, and filtering out point clouds which do not belong to principal components; segmenting the brake shoe based on a deep learning pointCNN point cloud segmentation network, and judging whether the brake shoe is missing; and carrying out point cloud processing, calculating a thickness brake shoe, and judging whether wear occurs or not. According to the method, the accuracy of subway brake shoe fault detection is improved, meanwhile, the abrasion degree of the brake shoe is scientifically measured and refined, and the abrasion degree is clearly and visually expressed; and a more comprehensive guarantee is provided for the operation safety of the subway.
Owner:SOUTHWEST JIAOTONG UNIV
Method for performing heading estimation on pedestrian in multiple carrying modes using mobile terminal
InactiveCN108413957AHeading Estimation ImplementationEasy to operateNavigational calculation instrumentsNavigation by terrestrial meansAngular velocityHuman motion
The invention provides a method for performing heading estimation on a pedestrian in multiple carrying modes using a mobile terminal. The method comprises the following steps: 1, obtaining the acceleration in a preset coordinate system, the angular velocity at a corresponding time point and the Earth's magnetic field intensity by the mobile terminal; 2, obtaining the attitude angle of the mobile terminal relative to a geodetic coordinate system according to the acceleration, the angular velocity at the corresponding time point and the Earth's magnetic field intensity; and 3, obtaining the gaitfrequency and the gait event sequence of the pedestrian according to the acceleration. The method for performing heading estimation on the pedestrian in multiple carrying modes using the mobile terminal can detect the heading of the pedestrian in multiple carrying modes by calculating human body motion information acquired by the mobile terminal. Compared with the prior art, the method provided by the invention can still achieve the heading estimation of the pedestrian when the pedestrian arbitrarily transforms the carrying mode of the mobile terminal.
Owner:SHANGHAI JIAO TONG UNIV
Control method for cleaning range hood
InactiveCN110285455ASolve pain pointsImprove cleanlinessDomestic stoves or rangesLighting and heating apparatusImpellerStopped work
The invention relates to a control method for cleaning a range hood. The method comprises the following steps that working time of the range hood is detected and recorded during the period from startup to shutdown of the range hood; the sum of time of one-time or continuous repeated working of the range hood is calculated and is compared with a preset first threshold value, and after the sum of time of one-time or continuous repeated working of the range hood is larger than the first threshold value, whether the range hood stops working or not is detected, and the working stop time of the range hood is recorded after the range hood stops working; and after the working stop time is larger than a preset second threshold value, a starting command is sent to a steam system so as to carry out steam cleaning on the range hood. According to a novel range hood steam cleaning method and device, the automatic startup of cleaning function is realized, and intelligent cleaning is carried out through tracking the use habit of a user; and an embedded water box is arranged, the operation steps are reduced so as to remove the trouble for the user, an impeller of the range hood is kept clean for a long time, and the service life of the range hood is prolonged.
Owner:FOSHAN SHUNDE MIDEA WASHING APPLIANCES MFG CO LTD
Equipment based on VPN technology and method and system for remotely maintaining PLC
ActiveCN111381553AFast and efficient remote maintenanceLow technical requirementsTotal factory controlProgramme control in sequence/logic controllersUser needsIp address
The invention relates to equipment based on a VPN technology and a method and system for remotely maintaining a PLC. The equipment based on the VPN technology has the characteristic of rapid deployment, is of a plug-and-play type, and can realize remote maintenance of the PLC only by informing technicians of equipment ID numbers and IP addresses of the PLC by field personnel and matching the technicians with remote client software. The equipment does not need to be configured, and if a field local area network does not have the capability of accessing the Ethernet, the equipment can access anoperator network and is connected with a VPN server to establish a virtual tunnel. According to the invention, seamless access can be realized efficiently and quickly without changing the original network environment; automatic connection can be achieved without complex configuration, the technical requirements for field personnel can be reduced, and simplicity and convenience are achieved; through the scheme, technicians can quickly troubleshoot problems, so that user requirements are met, and the problem of pain spots of users is solved.
Owner:北京航天智造科技发展有限公司 +1
Intelligent pig raising limiting weighing method, device and electronic equipment, and storage medium
ActiveCN109579956AOvercoming various disadvantages of weight measurementSolve pain pointsBiometric pattern recognitionWeighing apparatus for materials with special property/formPig farmsComputer science
The invention provides an intelligent pig raising limiting weighing method, device and electronic equipment, and a storage medium. The method comprises the following steps that S1, image information of pigs in each limiting bar of a pig farm to be weighed by intelligent limit is obtained; and S2, according to the image information of the pigs in each limit bar, a preset limiting weighing model isadopted to obtain weight information of the pigs in the corresponding limiting bar, wherein the preset limiting weighing model is obtained based on training of image sample input data of the pigs in the limit bar and weight sample result data. The intelligent pig raising limiting weighing method overcomes the defects (such as time consuming, labor consuming, high cost, frequent wagon balance damage, inaccurate weighing results, and stress response caused by driving weighing) of an existing method adopting a wagon balance to weight. Weighing with low cost, convenience, quickness and accuracy, and without stress response is achieved. The key problems of the traditional pig industry are solved.
Owner:BEIJING FOCUSED LOONG TECH CO LTD
Multi-dimensional data fusion investigation system and method thereof
PendingCN110874369ASolve pain pointsSolve problemsMulti-dimensional databasesSpecial data processing applicationsInformation processingInformation analysis
The invention discloses a multi-dimensional data fusion investigation system and method, and the system comprises a plurality of information collection modules which are used for carrying out the information collection of a dynamic target in a preset region, obtaining the target information data, enabling the dynamic target to comprise pedestrians and vehicles, and enabling the target informationdata to comprise MAC, license plates, human faces and IMSI feature data; an information processing module which is used for carrying out address identification grouping on the information acquisitionmodules with similar address space positions and carrying out time segmentation processing on the target information data obtained by the information acquisition modules in each group to obtain targetinformation data in different time periods; and an information analysis module which is used for analyzing the target information in different time periods in the same address identifier. The methodhas the advantages that the pain points and difficulties of a traditional investigation means are solved, seamless fusion of biological characteristics and electronic characteristics is creatively achieved, and associated application of structured data and unstructured data is creatively achieved.
Owner:GUANGZHOU NASSOFT INFORMATION TECH CO LTD
Power supply system of communication equipment and control method thereof
ActiveCN111416334AReduce workloadLow costAc-dc conversion without reversalDc-dc conversionControl engineeringVoltage regulation
The invention discloses a power supply system of communication equipment. The system comprises an electromechanical management module, a power supply plane and at least 2N switching power supply modules, wherein an input voltage type detection unit in each switching power supply module is used for detecting the type of a voltage accessed to the switching power supply module, detecting the physicalslot position information of the switching power supply module in a power supply plane, and reporting the type of the input voltage, the physical slot position information and the operation state information of the switching power supply module to the electromechanical management module; the electromechanical management module is used for determining a load distribution plan of each switching power supply module and issuing an output voltage regulation command to the corresponding switching power supply module according to the load distribution plan; and each switching power supply module changes the duty ratio of the driving power conversion circuit according to the received output voltage adjustment command so as to adjust the magnitude of the DC output voltage. The power supply systemis flexible in power supply and high in power supply efficiency. The invention further provides a control method of the communication equipment power supply system.
Owner:FENGHUO COMM SCI & TECH CO LTD
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