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36results about How to "Facilitate data fusion" patented technology
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Building knowledge mapping database and construction method thereof
ActiveCN105183869AConducive to data maintenance and data fusionAccurate advertisingDatabase management systemsSpecial data processing applicationsPoint locationData science
The invention relates to a building knowledge mapping database and a construction method thereof. The construction method includes the steps that building data are obtained from one or more data sources and integrated; the building data include building classification class information, building geographic information, building basic information, building owner and user information and crowd searching and label classifying information; the crowd searching and label classifying information is obtained after label classified statistic and index calculation are carried out on the main searching content of crowds in a building; based on the integrated building data, the building knowledge mapping database is constructed; hierarchical classification and structural processing are carried out on the integrated building data; entities in a building knowledge mapping include a building entity, a unit entity, a searching label entity, a searching point location entity and a unit industry entity. The building knowledge mapping database can be beneficial for maintaining and fusing the building data better and effectively using the building data for application programs and data reasoning, and the building data embody matching of the building and audience crowds in the building.
Owner:上海分众信息技术有限公司
Building monitoring oriented wireless sensor network data acquisition method
ActiveCN101877827AResolving inconsistencies that do not apply to practical applicationsFacilitate data fusionMeasurement devicesNetwork topologiesRouting protocolWireless sensor network
The invention relates to a building monitoring oriented wireless sensor network data acquisition method, wherein sensor nodes used for collecting temperature, humidity and illuminance data are arranged in all the rooms in a building, cluster head nodes collect the perception data of all the sensor nodes in clusters to fuse, each room only has one cluster head node, the sensor nodes perform wireless communication with the cluster head nodes, the cluster head nodes perform wireless communication with a base station device directly or in a multiple hop manner, the base station device aggregates the data in the wireless sensor network to transmit to a building monitoring management platform, and only one base station device is arranged in the wireless sensor network. The data collection method comprises the following steps: 1) forming clusters; 2) processing the data in the clusters; and 3) establishing a cluster head routing protocol. The building monitoring oriented wireless sensor network data collection method can effectively adapt to the building monitoring system and be easy to realize.
Owner:ZHEJIANG UNIV OF TECH
Virtual wall system applied to mobile devices and realization method thereof
ActiveCN106843230AFacilitate data fusionEasy to useAutonomous decision making processNavigation instrumentsHuman–computer interactionMobile device
The invention discloses a virtual wall system applied to a mobile device and a realization method thereof. The virtual wall system applied to the mobile device comprises a communication module, an interaction module and an obtaining module, wherein the communication module is mainly used for transmitting relevant map information, virtual wall information, positioning information and task information, and achieves a bridge effect; the interaction module is used for setting, adding or deleting virtual wall information in any shape by a user through graphical editing environment, and sends the information to an intelligent moving algorithm processing part; the obtaining module obtains virtual wall information provided by the interaction module, and performs relevant data storage. The system and the realization method have the advantages that additional auxiliary hardware equipment can be produced without additional cost; the use is more convenient, flexible and fast.
Owner:SHANGHAI SLAMTEC
Mobile sensor network clustering method based on geographical position information
ActiveCN104486715AExtend the life cycleReduce energy consumptionNetwork topologiesWireless commuication servicesRest energySimulation
The invention provides a mobile sensor network clustering method based on geographical position information. According to the method, firstly, a network is divided into a plurality of cells, a cluster head is selected according to the distance from a node in a cluster to the geometrical center of the cells, and the whole network is initialized. If the rest energy of the current cluster head is lower than the average rest energy of the nodes in the cluster, or the condition that the current cluster head leaves away from the range of the current cluster is judged, the cluster head is triggered to be updated. The cluster head updating is carried out in a mode of combining the rest energy, the moving speed and the moving direction. The mobile sensor network clustering method has the characteristics that the cluster covering region division and the initial cluster head selection is simple and convenient; the data fusion is favorably realized, and the energy consumption is reduced; the cluster head is selected from the aspects of the energy consumption level and the mobility of the nodes, and the cluster structure and the cluster stability are enhanced; the special clustering control sub groups are not needed, and the control expenditure is reduced.
Owner:NANJING UNIV OF POSTS & TELECOMM
Industrial data collection and feedback system
InactiveCN102681504AGood for data analysisImprove efficiencyTransmission systemsTotal factory controlCollections dataSensing data
The invention relates to an industrial data collection and feedback system based on a wireless sensor network. The industrial data collection and feedback system comprises a host server, a wireless coordinator node, a plurality of wireless route nodes and a plurality of data collection nodes. The industrial data collection and feedback system provided by the invention can flexibly collect various data, such as bar code data, sensing data and equipment data of each important station anytime anywhere, and can transmit the data to a host through a wireless network in time. After the host processes and analyses the data, feedback information is sent to the data collection nodes, so as to guide staff to do corresponding operations, improve generation efficiency and reduce production cost. The industrial data collection and feedback system provided by the invention is simple to operate and convenient and flexible to arrange, can be repeatedly used, and is easy to maintain and expand based on a wireless sensor network technology.
Owner:HUAZHONG UNIV OF SCI & TECH
Time synchronization and real-time data acquisition method for multi-sensor combined navigation system
ActiveCN108519610AEasy to implementWidely applicableSatellite radio beaconingReal time data acquisitionTime mark
The invention relates to a time synchronization and real-time data acquisition method for a multi-sensor combined navigation system, comprising the steps that time synchronization is realized on the basis of a linux local clock, and real-time modification of a standard linux system is carried out, so that the operating system running on the computing carrier meets the hard real-time requirement; data acquisition and time synchronization are realized, so that the time marks of the data acquired by all the sensors are kept consistent with the standard GPS, then entering a buffer area and fusingthe combined navigation data to prepare the combined navigation data can be carried out; the data acquisition is synchronous with the time, and the implementation mode is as follows: the PPS signal output by the GPS receiver serves as a reference, the local clock of the calculation carrier is corrected, and then the time scale is marked by utilizing the local clock of the calculation carrier as other sensors. Under the condition that additional hardware is not needed, time synchronization precision within 10 ms can be achieved, the requirements of multi-sensor data fusion can be met, and programming is simple, application range is wide, and transplant is convenient.
Owner:WUHAN UNIV
Vehicle autonomous navigation method based on image matching/inertial navigation/odometer
ActiveCN111426320ACorrect combined navigation errorAvoid out of syncInstruments for road network navigationNavigation by speed/acceleration measurementsTemplate matchingIn vehicle
The invention provides a vehicle autonomous navigation method based on image matching / inertial navigation / odometer. An unmanned aerial vehicle equipped with a ground shooting camera is arranged on a ground vehicle needing to be positioned; a vehicle-mounted inertial navigation / odometer integrated navigation system is started, and whether the unmanned aerial vehicle has a take-off condition or notis judged by a driver under a motion condition of the vehicle; if the UAV has the take-off condition, the UAV takes off autonomously and tracks the vehicle autonomously, photographs the ground and realizes positioning of the ground vehicle by matching the photographed real-time image with a reference image made in advance; a positioning result is obtained and then sent to the vehicle navigation computer for data fusion; and after a vehicle positioning result is obtained, the unmanned aerial vehicle autonomously lands and returns to the vehicle. The invention provides a new navigation scheme, an unmanned aerial vehicle is used for carrying an aerial camera, template matching is carried out on a real-time aerial image and a reference image library, so that geographic coordinates of a vehiclein the real-time aerial image are determined, and an integrated navigation error of an inertial navigation / odometer is corrected according to a matching positioning result.
Owner:CENT SOUTH UNIV
Compact Multi-Sensor Fusion System with Shared Aperture
ActiveUS20200005097A1Enabling synchronizationConvenient registrationScene recognitionElectromagnetic wave reradiationSpectral bandsImaging quality
A potentially small, gimballed, multi-sensor system employs a shared aperture for at least some of the image sensors. Applications include intelligence, surveillance, target acquisition and reconnaissance (ISTAR), and guiding autonomous vehicles. The system can actively blend images from multiple spectral bands for clarity and interpretability, provide remote identification of objects and material, provide anomaly detection, control lasers and opto-mechanics for image quality, and use shared aperture using folded optics.
Owner:CHARLES STARK DRAPER LABORATORY
Building information map construction method
InactiveCN107943810AImplement the buildIntuitive integrationGeographical information databasesSpecial data processing applicationsExtensibilityRelevant information
The invention discloses a building information map construction method. The method comprises the steps of obtaining building data from one or more data sources, and integrating the building data, wherein the building data comprises type information used for building classification, building geographic information, building basic information, building belonging and user information, and crowd search and tag classification information, and the crowd search and tag classification information is information obtained after tag classification statistics and index calculation are performed for main search contents of crowds in buildings; performing standardization processing on the building geographic information; by calling a search interface provided by a map database, searching for the building geographic information subjected to the standardization processing, thereby determining specific positions of the buildings; and by calling a tagging interface provided by the map database, taggingthe integrated building data in the determined corresponding positions of a graphic layer of a map, thereby realizing building information map construction. The building related information can be intensively displayed on the electronic map in a visual, integrated and high-expandability manner.
Owner:上海分众信息技术有限公司
Sudden respiratory infectious disease risk prediction model for regional epidemic prevention and control
PendingCN113362959AHigh non-linear mapping capabilityEasy to handleMedical data miningEpidemiological alert systemsOriginal dataInfectious illness
The invention discloses a sudden respiratory infectious disease risk prediction model for regional epidemic prevention and control. The model comprises the following steps: S1, obtaining original data; s2, carrying out data management; s3, establishing a knowledge base; s4, carrying out decision-making layer fusion; and S5, establishing a risk prediction model. The invention has the following beneficial effects: (1) the system has advantages in multi-dimensional input data and output data processing; (2) any complex nonlinear problem can be processed, so that the nonlinear mapping capability is high; (3) information or data can be processed in parallel, and the data processing capability and performance are improved; (4) the self-adaptability is relatively high; and (5) the data fusion aspect is good.
Owner:重庆南鹏人工智能科技研究院有限公司 +2
Data processing method and apparatus
ActiveCN108205575APrevent leakageFacilitate data fusionDigital data protectionSpecial data processing applicationsService provisionInformation leakage
Embodiments of the invention disclose a data processing method and apparatus, which is used for performing secrecy processing on data used for user portrait drawing to facilitate realization of the user portrait drawing. The method comprises the steps of obtaining business system data; converting the business system data to obtain converted data, wherein the converted data is data having secrecy performance and capable of being used for performing the user portrait drawing; and sending the converted data to a portrait drawing platform, thereby enabling the portrait drawing platform to performthe user portrait drawing according to the converted data. After the business system data of a business system data party is subjected to the secrecy processing, the information leakage of sensitive data of the business system data can be avoided, and the converted data still can be used for the user portrait drawing; and in the portrait drawing platform, the user portrait drawing can be performedaccording to the converted data, and the fusion of the data of the business system data party and data of a portrait drawing service provider is facilitated, thereby realizing the user portrait drawing.
Owner:BEIJING GRIDSUM TECH CO LTD
Core processing circuit design method for navigation system
ActiveCN108318028AFacilitate data fusionHighly integratedNavigation by speed/acceleration measurementsComputer architectureData acquisition
The invention belongs to the technical field of airborne and missile-borne navigation data processing and relates to a core processing circuit design method for a navigation system. The invention discloses a core processing circuit design method for an inertial navigation system based on a multi-core processor. The design method comprises the following steps: 1, designing a core processing circuitof a multi-core processor inertial navigation system based on a domestic multi-core processor FT-Q6713J / 500; 2, designing a high-precision temperature sensor acquisition circuit; 3, designing a high-speed data acquisition circuit with high real-time property and high robustness; 4, designing a high-speed 1553B bus circuit; 5, performing health management design on the inertial navigation system.According to the design, the multifunctional highly-integrated core processing circuit for the inertial navigation system is realized.
Owner:XIAN AVIATION COMPUTING TECH RES INST OF AVIATION IND CORP OF CHINA
A clustering method for mobile sensor networks based on geographic location information
ActiveCN104486715BExtend the life cycleReduce energy consumptionNetwork topologiesWireless commuication servicesRest energyMobile wireless sensor network
The invention provides a mobile sensor network clustering method based on geographical position information. According to the method, firstly, a network is divided into a plurality of cells, a cluster head is selected according to the distance from a node in a cluster to the geometrical center of the cells, and the whole network is initialized. If the rest energy of the current cluster head is lower than the average rest energy of the nodes in the cluster, or the condition that the current cluster head leaves away from the range of the current cluster is judged, the cluster head is triggered to be updated. The cluster head updating is carried out in a mode of combining the rest energy, the moving speed and the moving direction. The mobile sensor network clustering method has the characteristics that the cluster covering region division and the initial cluster head selection is simple and convenient; the data fusion is favorably realized, and the energy consumption is reduced; the cluster head is selected from the aspects of the energy consumption level and the mobility of the nodes, and the cluster structure and the cluster stability are enhanced; the special clustering control sub groups are not needed, and the control expenditure is reduced.
Owner:NANJING UNIV OF POSTS & TELECOMM
Wire-controlled chassis track tracking control system and method based on UWB positioning
ActiveCN110297502ABalance computationBalance Tracking AccuracyTarget-seeking controlControl systemClosed loop
The invention discloses a wire-controlled chassis track tracking control system and method based on UWB positioning, vehicle real-time positioning data is obtained based on UWB positioning technology,a high-order perturbation filtering method is adopted, and the positioning data and a reference track are subtracted to obtain a control quantity at the current moment, wherein the control quantity comprises transverse position deviation and course angle deviation; two subsystems are decomposed based on an inversion method, namely, a transverse position deviation control subsystem and a course angle deviation control subsystem, the two subsystems form a closed-loop control system, and a wheel rotating angle and a driving moment are calculated according to the control quantity to drive the vehicle to move forwards to finish the tracking of the reference track. According to the invention, good data fusion is carried out between UWB and vehicle track tracking control, and the track trackingcontrol of the invention has good system robustness and safety by using a high-order perturbation filtering method.
Owner:浙江智莱科技有限公司
Device and Method for Fusing Image Data from a Multi-Camera System for a Motor Vehicle
InactiveUS20190392567A1Facilitate data fusionEasy to integrateTelevision system detailsImage enhancementPixel densityImage analysis
A device (1) for fusing image data from a multi-camera system (100) for a motor vehicle includes: an image analysis device (10) configured to define subregions (TB1, TB2, . . . , TBn) of an overlap region (ÜB) of at least two cameras (110, 120) of the multi-camera system; an acquisition device (20) configured to acquire pixel densities of the subregions (TB1, TB2, . . . , TBn) of the overlap region; and a computing device (30) configured to determine pixel density deviations and to select adjacent subregions (TB1, TB2, . . . , TBn) with deviations below a threshold value for a total image overlay.
Owner:CONTI TEMIC MICROELECTRONIC GMBH
Method for conversion between coordinate systems of two independent systems based on quaternion
ActiveCN107330862AFacilitate data fusionCalculation is simple and fastImage analysisGeometric image transformationQuaternionMeasuring instrument
The invention discloses a method for conversion between coordinate systems of two independent systems based on quaternion. The method includes a conversion parameter calibrating process and an information conversion process, wherein the conversion parameter calibrating process includes the steps of fixing markers of the two independent systems, retaining the markers to be relatively still, rotating the markers, obtaining the positional information and space attitude information of the two markers during the motion process, converting the obtained positional information and space attitude information into quaternion, and estimating the conversion parameter with least squares. The information conversion process includes the steps of obtaining the positional information and space attitude information of the marker of one system, converting the obtained positional information and space attitude information into quaternion, and calculating the positional information and space attitude information of the marker in the other system according to the estimated conversion parameters. The conversion of positional information and space attitude information of two systems is possible, which facilitates subsequent data fusion. Calculation is simple and fast, and no extra measuring instrument is needed.
Owner:GUANGZHOU HUANTEK CO LTD +2
Building knowledge graph database and its construction method
ActiveCN105183869BEasy data maintenanceFacilitate data fusionDatabase management systemsSpecial data processing applicationsData sourceCrowds
The invention relates to a building knowledge mapping database and a construction method thereof. The construction method includes the steps that building data are obtained from one or more data sources and integrated; the building data include building classification class information, building geographic information, building basic information, building owner and user information and crowd searching and label classifying information; the crowd searching and label classifying information is obtained after label classified statistic and index calculation are carried out on the main searching content of crowds in a building; based on the integrated building data, the building knowledge mapping database is constructed; hierarchical classification and structural processing are carried out on the integrated building data; entities in a building knowledge mapping include a building entity, a unit entity, a searching label entity, a searching point location entity and a unit industry entity. The building knowledge mapping database can be beneficial for maintaining and fusing the building data better and effectively using the building data for application programs and data reasoning, and the building data embody matching of the building and audience crowds in the building.
Owner:上海分众信息技术有限公司
Trajectory tracking control system and method of wire-controlled chassis based on uwb positioning
The invention discloses a wire-controlled chassis trajectory tracking control system and method based on UWB positioning. Real-time vehicle positioning data is obtained based on UWB positioning technology, and a high-order perturbation filtering method is used to subtract the positioning data from a reference trajectory to obtain the current time. The control variables include lateral position deviation and heading angle deviation; based on the inversion method, two subsystems are decomposed: lateral position deviation control subsystem and heading angle deviation control subsystem. These two subsystems constitute a closed-loop control system. Calculate the wheel angle and driving torque, drive the vehicle to move forward, and complete the tracking of the reference trajectory. The present invention performs good data fusion between UWB and vehicle trajectory tracking control, and utilizes the high-order perturbation filtering method, so that the trajectory tracking control of the present invention has good system robustness and safety.
Owner:浙江智莱科技有限公司
Data processing method and device
ActiveCN108205575BPrevent leakageFacilitate data fusionDigital data information retrievalDigital data protectionConfidentialityEngineering
The embodiment of the present invention discloses a data processing method and device, which are used for performing confidential processing on data used for user portraits, and promoting the realization of user portraits. The method in the embodiment of the present invention includes: acquiring business system data; converting the business system data to obtain converted data, the converted data is data that is confidential and can be used for user portraits; sending the converted data to the portrait platform data, so that the portrait platform performs user portraits according to the conversion data. In this way, after the business system data of the business system data party is confidentially processed, information leakage of sensitive data of these business system data can be avoided, and the converted data processed in this way can still be used for user portraits. On the portrait platform, according to the Transform data for user portraits, and promote the integration of data from the data side of the business system and data from the portrait service provider to achieve user portraits.
Owner:BEIJING GRIDSUM TECH CO LTD
Functional SDN northbound interface system and implementation method suitable for heterogeneous industrial networks
ActiveCN108600028BEasy to manage and controlReduce operation and maintenance costsData switching networksResource poolVirtualization
The invention relates to a functional SDN northbound interface system and an implementation method suitable for heterogeneous industrial networks, belonging to the technical field of industrial networks. On the basis of fully considering the business characteristics of the industrial network, the present invention concentrates and abstracts the network resources of the industrial wireless network into a virtual resource pool, and performs unified arrangement and integrated management of the virtualized resources of the industrial wireless network and the industrial backhaul network through the resource arrangement unit , so as to provide a basis for the function opening of the northbound interface. The functional SDN northbound interface system designed by the present invention can flexibly provide two levels of functional northbound interfaces, the industrial wireless network functional interface and the integrated management interface, to the upper-layer network managers. At the same time, when accessing a new network, the system only needs to Modifications at the software level are made with high scalability.
Owner:CHONGQING UNIV OF POSTS & TELECOMM
Wireless sensor network multi-interface gateway equipment with terminal function and uses thereof
InactiveCN101252553BReduce volumeReduce weightData switching by path configurationNetwork connectionsData displayData stream
Owner:SOUTHEAST UNIV
Conversion method between two independent system coordinate systems based on quaternion
ActiveCN107330862BFacilitate data fusionCalculation is simple and fastImage analysisGeometric image transformationQuaternionMeasuring instrument
Owner:GUANGZHOU HUANTEK CO LTD +2
Wind power plant tower drum foundation form monitoring system
PendingCN113982855AExtended service lifeTimely maintenanceWind motor supports/mountsMachines/enginesMonitoring systemTower
The invention discloses a wind power plant tower drum foundation form monitoring system which comprises a tower drum body which is a supporting structure of a wind power generation device, wherein the tower drum body is of a cylindrical structure; a cabin which is mounted at the top end of the tower drum body; blades rotationally mounted on the front side of the cabin; and a collection station which is arranged on the outer side of the tower drum body, wherein preferably, the tower drum body further comprises a first tower drum section which is the lowermost layer structure of the tower drum body, and a second tower section which is mounted at the upper end of the first tower section, and the cabin is arranged at the top end of the second tower section. According to the monitoring system, important parts of the wind power generation equipment are systematically monitored through the sensor and the monitoring equipment. The situation that the blades, the tower drum and other key components and connecting fasteners among the components are abraded to different degrees and cannot be found in time can be effectively prevented, the damaged components can be effectively maintained in time, and the service life of power generation equipment can be prolonged.
Owner:中广核大悟阳平风力发电有限公司 +1
A vehicle autonomous navigation method based on image matching/inertial navigation/odometer
ActiveCN111426320BCorrect combined navigation errorAvoid out of syncInstruments for road network navigationNavigation by speed/acceleration measurementsEngineeringOdometer
The invention provides a vehicle autonomous navigation method based on image matching / inertial navigation / odometer. Configure an unmanned aerial vehicle equipped with a ground-facing camera on the ground vehicle that needs to be positioned; start the vehicle-mounted inertial navigation / odometer integrated navigation system, and the driver will judge whether the unmanned aerial vehicle has the conditions to take off when the vehicle is in motion; if When the take-off conditions are met, the UAV takes off autonomously and tracks the vehicle autonomously. At the same time, it takes pictures of the ground and uses the captured real-time image to match the reference map made in advance to realize the positioning of the ground vehicle; after obtaining the positioning result, it is sent to the vehicle navigation computer for data fusion; After the vehicle positioning results, the UAV autonomously lands and returns to the vehicle. The present invention proposes a new navigation scheme, which uses a UAV to carry an aerial camera, and performs template matching on the real-time aerial image and the reference gallery, thereby determining the geographical coordinates of the vehicle in the real-time aerial image, and correcting the inertial navigation / mileage of the matching positioning result Calculated combined navigation error.
Owner:CENT SOUTH UNIV
Compact multi-sensor fusion system with shared aperture
ActiveUS11392805B2Convenient registrationFacilitate data fusionScene recognitionElectromagnetic wave reradiationSpectral bandsImaging quality
A potentially small, gimballed, multi-sensor system employs a shared aperture for at least some of the image sensors. Applications include intelligence, surveillance, target acquisition and reconnaissance (ISTAR), and guiding autonomous vehicles. The system can actively blend images from multiple spectral bands for clarity and interpretability, provide remote identification of objects and material, provide anomaly detection, control lasers and opto-mechanics for image quality, and use shared aperture using folded optics.
Owner:CHARLES STARK DRAPER LABORATORY
An attitude sensing device and data fusion and attitude calculation method
ActiveCN111693019BSimple structureEasy to implementAngle measurementNavigation by speed/acceleration measurementsSimulationComputer vision
An attitude sensing device, data fusion, and attitude calculation method, first collect attitude data through an attitude data acquisition module, and transmit the collected attitude data acquisition module to an MCU; the MCU sends the received attitude data to an MPL library; through the MPL library solution to obtain the calculated pitch angle, roll angle and heading angle; sample the heading angle value every 20s, make a difference between the heading angle after each sampling and the calibration value, and accumulate all the differences , to get the accumulated value; subtract the accumulated value from the value of the heading angle collected in real time to obtain the calibrated heading angle, and complete the update of the attitude. The invention is based on the data fusion and attitude dissolution method of the motion digital processing engine, which can effectively suppress the zero drift and temperature drift of the heading angle, and the accuracy can reach 0.1°.
Owner:XI AN JIAOTONG UNIV
Distribution network project equipment portrait index evaluation system and evaluation method
PendingCN112990647AFacilitate data fusionPromote Data GovernanceMachine learningResourcesOriginal dataPower grid
The invention relates to a distribution network project equipment portrait index evaluation system and evaluation method, and belongs to the technical field of power grid power distribution. The structure of the invention comprises an original data layer, a fact label layer, a model label layer and an intelligent prior label layer. The original data layer is connected with the fact label layer; the model label layer is connected with the fact label layer, and the intelligent prior label layer is connected with the model label layer. The system and method have the beneficial effects that the mining direction and path of the equipment data value are explored, and full mining and application of the data value in the field of equipment management are realized. On the other hand, data fusion and data governance among professionals are promoted, and on the basis of a data mining technology and a tag portrait technology, tagging management and holographic portrait display of the equipment are realized, the health state of the equipment is accurately grasped, and the basic effect of the equipment portrait is exerted; development decisions such as power grid planning design, investment transformation, equipment operation, equipment maintenance and decommissioning work are supported in an auxiliary mode, and the utilization efficiency of power grid equipment is improved.
Owner:STATE GRID HUNAN ELECTRIC POWER
Building monitoring oriented wireless sensor network data acquisition method
ActiveCN101877827BResolving inconsistencies that do not apply to practical applicationsFacilitate data fusionMeasurement devicesNetwork topologiesWireless mesh networkData acquisition
The invention relates to a building monitoring oriented wireless sensor network data acquisition method, wherein sensor nodes used for collecting temperature, humidity and illuminance data are arranged in all the rooms in a building, cluster head nodes collect the perception data of all the sensor nodes in clusters to fuse, each room only has one cluster head node, the sensor nodes perform wireless communication with the cluster head nodes, the cluster head nodes perform wireless communication with a base station device directly or in a multiple hop manner, the base station device aggregates the data in the wireless sensor network to transmit to a building monitoring management platform, and only one base station device is arranged in the wireless sensor network. The data collection method comprises the following steps: 1) forming clusters; 2) processing the data in the clusters; and 3) establishing a cluster head routing protocol. The building monitoring oriented wireless sensor network data collection method can effectively adapt to the building monitoring system and be easy to realize.
Owner:ZHEJIANG UNIV OF TECH
Temperature-pressure sensor
InactiveCN100374824CSimple structure and processGuaranteed identityFluid pressure measurement using ohmic-resistance variationThermometers using electric/magnetic elementsTemperature senseBiomedical engineering
The sensor includes a body case composed of a probe head and a cavity connected to the head, as well as a temperature-sensing element, four pieces of pressure sensor, a temperature-sensing circuit and a pressure induction circuit, which are setup inside the cavity. There is a mounting hole on an end face of the probe head; and the temperature-sensing element is setup on the mounting hole. There are four holes in intervals for liquid to flow in or out on the end face of the probe head; and pressure sensors are set up at these holes respectively. The disclosed temperature - pressure sensor simplifies manufacturing structural technique. Parameters of temperature and pressure are collected at same position so as to guarantee position identity of measured point. It is in favor of carrying out interfusion and compensation of data of each parameter.
Owner:NO 711 RES INST CHINA SHIPPING HEAVY IND GRP
A low-loss temperature-pressure composite sensor air nozzle
ActiveCN113739994BReduce distractionsExtend the life cycleMeasurement apparatus componentsFluid-tightness measurement using fluid/vacuumControl valvesCheck valve
The invention discloses a low-loss temperature and pressure composite sensor air nozzle, comprising a check valve core, a check valve body, a control valve core, a control valve body, a temperature and pressure sensing core, and a bolt; One end of the valve body is connected to one end of the control valve body, and the temperature and pressure sensing core is located in the installation groove of the control valve body; the temperature and pressure sensing core collects the temperature and pressure of the gas to be measured, pressure; one end of the one-way valve spool is connected with one end of the control valve spool, and the other end of the control valve spool is connected with a bolt. In this technical solution, a temperature and pressure sensing core body is arranged in the installation groove of the control valve body. When the gas enters the control valve core and the internal channel of the control valve body, the temperature and pressure of the gas can be detected together, so as to realize Multi-parameter measurement function; and the temperature and pressure sensing core is located inside the valve body of the control valve, which reduces the interference of the external environment to the component during the test process.
Owner:CHENGDU AIRCRAFT INDUSTRY GROUP
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