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Dynamic strain testing method for surface of rotating body in electromagnetic environment
PendingCN119509332Ahigh sensitivityHigh measurement accuracySustainable transportationElectrical/magnetic solid deformation measurementData acquisitionElectromagnetic environment
The invention provides a method for testing the dynamic strain of the surface of a rotating body in an electromagnetic environment. The method comprises the following steps: constructing a bridge by using strain gauges and acquiring dynamic characteristic data of the rotating part under actual constraint conditions; performing simulation calculation according to the dynamic characteristic data, and determining the optimal pasting position of the strain gauge; pasting a strain gauge and formulating a wiring scheme of a strain gauge wire; the strain gauge is connected with a voltage signal amplifier, the amplified signal is connected with a data acquisition system through a conductive slip ring, and the amplified strain signal is recorded and processed; acquiring strain signals in real time and taking the strain signals as test data, and performing whole-course test in a full-rotating-speed range to complete dynamic strain test on the surface of the rotating body. The system has high sensitivity, the sensitivity and the measurement precision of the system are improved through full-bridge configuration, larger output signals are provided, the full bridge can achieve temperature compensation through symmetrical circuit design, and the system has good linear output characteristics and facilitates signal processing and analysis within the strain range.
Owner:HARBIN INST OF TECH
Oscillating water column array fan coupling power generation device capable of adapting to tide level change
PendingCN119532096Areduce discontinuityImprove reliabilityWind energy with water energyWind motor supports/mountsElectric power systemEnergy flow
The invention discloses an oscillating water column array fan coupling power generation device capable of adapting to tide level changes, belongs to the field of energy utilization equipment, and solves the problems that in the prior art, the wave energy flow density of partial sea areas is low, and the power generation efficiency of an existing OWC wave energy conversion device is low. According to the technical scheme, an inner cavity is formed in the shared gas chamber; a plurality of oscillating water columns are arranged; each oscillating water column is a hollow tubular column body with openings in two ends, and the opening in one end of each oscillating water column is communicated with the inner cavity of the shared air chamber; and the inner cavity of the shared air chamber is communicated with the power input end of the turbine device. The system has the beneficial effects that multi-element energy utilization is realized, and different natural resources are fully utilized. And the volatility of the power system is reduced. When the output of the wind energy or the wave energy is unstable, the other energy may be in a high-output state, so that the power supply of the system is balanced, and the instability of the power system is reduced.
Owner:HUANDIAN (FUJIAN) WIND POWER CO LTD +1
Regional power grid wind power generation power prediction optimization method
PendingCN119482411ARaise attentionImprove forecast accuracyGeneration forecast in ac networkForecastingAlgorithmEngineering
The invention discloses a regional power grid wind power generation power prediction optimization method which comprises the following specific steps: firstly, collecting data such as wind speed and wind direction through meteorological sensors arranged in a wind power plant and around the wind power plant, and carrying out cleaning and de-noising preprocessing; secondly, decomposing the meteorological data into intrinsic mode function components with different frequencies by adopting variational mode decomposition, constructing a convolutional neural network to perform feature extraction on each component, and adaptively adjusting the size of a convolution kernel according to the periodic characteristics of the data; then, a bidirectional long-short-term memory network based on an attention mechanism is used for fusing features, time sequence information is captured, power prediction is achieved through a full-connection neural network, and the weight of the FCNN is initialized through a random forest regression model to improve the initial performance of the model; according to the method, the prediction precision is improved through multi-level characteristic decomposition and a self-adaptive mechanism, the real-time response capability is good, and the requirements of the regional power grid for the precision and timeliness of wind power generation power prediction are met.
Owner:CHUXIONG POWER SUPPLY BUREAU OF YUNNAN POWER GRID CO LTD
Heating room temperature prediction method, medium, equipment and heating room temperature prediction system
InactiveCN119599161AImprove forecast accuracyreduce power consumptionForecastingPredictive methodsRoom temperature
The invention relates to the technical field of heating temperature prediction, and relates to a heating room temperature prediction method, a medium, equipment and a heating room temperature prediction system, and the method comprises the steps: obtaining target information corresponding to a target house; inputting the target information into a predetermined heating room temperature prediction model to obtain a predicted room temperature corresponding to the target house; wherein the heating room temperature prediction model is a model obtained by training according to first historical heating data, and the first historical heating data comprises house information and actual room temperature of a plurality of houses, historical water supply temperature and historical water return temperature of a heating station for supplying heat to the houses, and historical meteorological information when the actual room temperature is collected; the actual room temperature is acquired by temperature sensors deployed in the houses, and the plurality of houses are part of houses in the building. According to the method, the prediction precision is higher, the hardware cost and the installation cost are remarkably reduced, the power consumption of the heating system is reduced, and the external temperature change can be responded in real time.
Owner:HUASHENG DIGITAL INTELLIGENCE (BEIJING) TECHNOLOGY CO LTD
Millimeter wave radar power transmission line icing monitoring system and method
ActiveCN119644326AReduce installation costsReduce maintenance costsRadio wave reradiation/reflectionICT adaptationFast Fourier transformRadar
The invention relates to the technical field of power system safety monitoring, and provides a millimeter wave radar power transmission line icing monitoring system and method, which can perform all-weather icing monitoring under complex meteorological conditions (such as rain, snow and fog). Frequency domain features are extracted through fast Fourier transform (FFT), inversion of the icing thickness is carried out in combination with algorithms such as support vector regression (SVR), and the icing thickness on the power transmission line can be accurately obtained in real time. Through the wide coverage characteristic of the millimeter wave radar, a large-range power transmission line can be monitored. Compared with a locally installed optical fiber sensor, the system can cover a wider line area by arranging a small amount of radar equipment, the monitoring range is expanded to tens of kilometers, and the installation and maintenance cost of the equipment is greatly reduced; when the icing thickness of the power transmission line and the icing thickness increasing speed of the power transmission line exceed a set safety threshold value, an alarm is triggered to remind a maintainer to clean the line.
Owner:QUJING POWER SUPPLY BUREAU YUNNAN POWER GRID CO LTD
Photovoltaic power generation device adaptive to illumination angle adjustment
ActiveCN119543786AEasy to installEasy to assemblePhotovoltaic supportsSolar heating energyStructural engineeringMechanical engineering
The invention relates to the technical field of photovoltaic power generation, in particular to a photovoltaic power generation device adaptive to illumination angle adjustment, which comprises a plurality of mounting frames, one side wall of each mounting frame is provided with a T-shaped groove, the other side wall of each mounting frame is fixedly provided with a T-shaped block, and the adjacent T-shaped blocks are matched with the T-shaped grooves in an inserted manner. The top surfaces of the mounting frames are rotatably connected with photovoltaic power generation panel bodies through hinge shafts, overturning assemblies are fixedly arranged in the middles of the mounting frames, protective blocks are arranged on the overturning assemblies, the mounting frames are mounted on the top surfaces of tripods, supporting pieces are fixedly arranged on the bottom surfaces of the tripods, and the lower ends of the supporting pieces are rotatably connected with bases; wherein a cleaning assembly is arranged on one mounting frame, and a cleaning roller is arranged on the cleaning assembly. The number of the photovoltaic power generation panel bodies can be conveniently increased or decreased to adapt to power generation requirements of different scales, assembly, disassembly and maintenance of the photovoltaic power generation panel bodies are facilitated, the use convenience and flexibility are improved, and the operation cost is reduced.
Owner:CHINA UTONE CONSTR CONSULTING CO LTD
Ball guide pillar assembly for die holder
ActiveCN222473473UImprove versatilityReduce the time required for installationPressesStructural engineeringMechanical engineering
The utility model discloses a ball guide pillar assembly for a die holder, and particularly relates to the technical field of mechanical dies, the ball guide pillar assembly comprises a lower die holder, two sides of the lower die holder are respectively provided with two first shells, and a plurality of first shells are internally provided with fixing assemblies; the multiple fixing assemblies comprise rotating rods, rotating shafts are fixedly connected to the rear sides of the rotating rods, rotating discs are fixedly connected to the outer sides of the rotating shafts, clamping rods are arranged in the rotating discs, first springs are fixedly connected to one sides of the clamping rods, second shells are installed on the outer sides of the clamping rods and the first springs, and rotating plates are fixedly connected to the rear sides of the rotating shafts. Compared with the prior art, the fixing assembly is arranged, the rotating plate rotates to drive the two clamping plates to clamp and fix the lower die holder, then the clamping rod and the rotating disc are movably connected to fix the rotating shaft, die holders of different sizes can be fixed, good universality is achieved, the installation time is shortened, and the installation cost is reduced. And meanwhile, the maintenance work can be quickly completed, and the maintenance time and cost are reduced.
Owner:CHUANGSITE PRECISION MACHINERY KUNSHAN CO LTD
Circuit board connecting structure and electric appliance
ActiveCN222483735UReduce installation costsreduce usageCoupling device connectionsWire rodElectrical connection
The utility model relates to the technical field of electronic equipment, and discloses a circuit board connecting structure and an electric appliance. The circuit board connecting structure comprises a circuit board and an adapter plate. The circuit board is provided with a first connecting part, and the adapter plate is provided with a second connecting part. Wherein one of the first connecting part and the second connecting part is a plug, and the other one is a socket. And the plug is inserted into the jack of the socket and is used for electrically connecting the circuit board with the adapter plate. A first connecting part is constructed on a circuit board, a second connecting part is constructed on an adapter plate, one of the first connecting part and the second connecting part is a plug, the other one is a socket, and the circuit board can be electrically connected with the adapter plate in a plug-in manner based on plug-in between the plug and the socket. Therefore, the use of wires is reduced, the layout scheme of the circuit board is optimized, and the installation cost of the circuit board is saved.
Owner:SHENZHEN TCL DIGITAL TECH CO LTD
Steering adjusting structure of frameless glass lifter
InactiveCN222501440Ureduce manufacturing costfirmly connectedMan-operated mechanismSheet joiningScrew thread
Owner:CHONGQING HI LEX CABLE SYST GRP CO LTD
Multiphase energy storage inverter parallel system and network side wiring detection method thereof
The invention discloses a multiphase energy storage inverter parallel system and a network side wiring detection method thereof, the system comprises a plurality of multiphase energy storage inverters, one is a host, and the rest are slaves; the network side wiring detection method comprises the steps that counters corresponding to all phases in a host and all the slaves count respectively, and the host and all the slaves detect the voltage of all phases of a power grid respectively; when receiving the detection signal sent by the host, the slave checks whether the numerical value of the counter of the corresponding phase is within a preset range, and if so, the phase wiring is correct; if not, the phase wiring is wrong; after the slave machine completes wiring detection of all phases and wiring is correct, the slave machine outputs a feedback signal; and after receiving the feedback signals of all the slaves, the host judges whether the effective value of the current grid voltage is within a normal range, and if so, the host is controlled to be in parallel operation and grid-connected operation with all the slaves. According to the invention, the method can accurately recognize the wiring error of the power grid when a plurality of multiphase energy storage inverters are connected in parallel, and improves the safety of an energy storage system.
Owner:SHENZHEN POWEROAK NEWENER CO LTD
Combined color steel corrugated cable bridge
ActiveCN119482212ANeat layingavoid chaosPackage recyclingElectrical apparatusCable trayArchitectural engineering
The invention relates to the technical field of laying and erecting line assemblies, in particular to a combined color steel corrugated cable bridge which comprises a cable installation bottom frame, the top of the cable installation bottom frame is movably sleeved with an assembly top plate, a transverse moving frame is arranged at the bottom of the assembly top plate, and L-shaped bent plates are arranged on the two sides of the assembly top plate. A circular clamping strip is arranged at the bottom of the L-shaped bending plate, corresponding cables can be quickly and accurately found during equipment maintenance, troubleshooting or line reconstruction, the working efficiency is improved, different cables can be distinguished through marks or colors, after being fixed in a cable bridge, the cables are more convenient to identify and manage, and the cable bridge is more convenient to use. The method is particularly important for a large-scale project or a complex electrical system, misoperation and potential safety hazards can be reduced, and meanwhile, the cable can be effectively prevented from being influenced by external environments such as dust, moisture and corrosion. The cable bridge is usually made of corrosion-resistant, waterproof and dustproof materials, and reliable protection can be provided for the cable.
Owner:JIANGSU ZHONGHUI ELECTRICAL ENG CO LTD
Damp-proof cable joint auxiliary assembly
ActiveCN222582033Uquick installationReduce installation costsCable junctionsCable inlet sealing meansStructural engineeringMechanical engineering
The utility model provides a moisture-proof cable joint auxiliary assembly, and the assembly is characterized in that two cable pressure heads are arranged and are respectively arranged at the positions, close to a cable joint, of two cables in a sleeving manner; the number of the compression nuts is two, and the compression nuts are installed on the cable pressing head so as to apply inward pressing force to the cable pressing head. The male joint sleeves a cable joint at the end part of one of the cables; the female joint sleeves a cable joint at the end part of the other cable and is in sealed connection with the male joint; the two pressing rings are arranged at the positions, close to the cable connectors, of the two cables respectively in a sleeving mode and connected with the male connector and the female connector in a one-to-one corresponding and inserted mode. The number of the cylindrical waterproof films is two. According to the invention, a plurality of fixing parts and a waterproof film are used to realize sealing of cable joints, and a moisture-proof purpose under an environmental condition with a large temperature difference is realized; and the overall installation is simple and fast, repeated use can be achieved, and the installation cost is reduced.
Owner:SHANDONG SURVEY & DESIGN INST OF WATER CONSERVANCY
Movable charging cabinet
PendingCN119459391AImprove stabilityShorten layout lengthCharging stationsElectric controlControl theory
The invention discloses a movable charging cabinet, which comprises a frame body, the frame body is provided with two rails, one rail is internally provided with a power connection guide rail, and the power connection guide rail is used for being connected with an external power supply; and the charging cabinet is movably arranged between the two rails, the charging cabinet is provided with a power connection module, and the power connection module is in sliding contact with the power connection guide rails, so that the charging cabinet is in a power connection state when moving relative to the frame body. According to the movable charging cabinet with the structure, through cooperation of the power connection module and the power connection guide rail, sliding power connection of the charging cabinet is achieved, the arrangement length of cables is reduced, the design of an electric control assembly and a take-up mechanism can be omitted, and therefore the structure of equipment is simplified, and cost is reduced.
Owner:GUANGXI POWER GRID CO LIUZHOU POWER SUPPLY BUREAU
Device for synchronously removing multi-target pollutants of underground water
The utility model discloses a device for synchronously removing multi-target pollutants of underground water, and relates to the technical field of underground water pollution remediation. The device for synchronously removing the underground water multi-target pollutants comprises a permeable reactive barrier, a first unit is arranged on the right side of the permeable reactive barrier, a permeable grid is arranged on the right side of the first unit, an automatic sample detection and analysis device is arranged above the permeable grid, and a second unit is arranged on the right side of the permeable grid. According to the device for synchronously removing the multi-target pollutants in the underground water, the pollutants are subjected to multi-stage enhanced treatment based on the synergistic effect of adsorption, electrochemistry, plant enrichment and microbial degradation through an electrodynamic force combined physical-chemical-phytoremediation technology, so that the efficient and lasting removal of the composite pollutants such as heavy metals, inorganic matters and organic matters in the underground water is realized; the method solves the problem of difficult cooperative treatment of multiple pollutants, and has the advantages of simple construction, low installation cost, efficient restoration, strong applicability, ecological environmental protection and the like.
Owner:HUATIAN ENG & TECH CORP MCC +1
Column-mounted circuit breaker integrating communication, electricity taking and traveling wave distance measurement
PendingCN119601418AImprove sampling accuracyImprove response speedBatteries circuit arrangementsPower distribution line transmissionCapacitanceTelecommunications
The invention belongs to the technical field of pole-mounted circuit breakers in power systems, and particularly relates to a pole-mounted circuit breaker integrating communication, electricity taking and traveling wave distance measurement. The solid-sealed polar pole is located on the box body, an integrated capacitor C1 is arranged in the solid-sealed polar pole, and the wire inlet side of the integrated capacitor C1 is a high-voltage terminal; a secondary side circuit is arranged in the box body, a self-integrated capacitor C1 is sequentially connected in series with low-voltage capacitors C2 and C3 of a capacitor electricity-taking power supply and a high-frequency transformer T2, and a power-frequency electricity-taking transformer T1 is connected in parallel with the C2 and C3; the protection circuit is connected to the C3 in parallel; the high-frequency transformer T2 has two groups of output windings, one group of output windings is connected in series with the traveling wave acquisition circuit, and the other group of output windings is connected in series with the carrier communication circuit. Original four independent devices are integrated into one device, functions are deeply integrated, the limitation that in a traditional scheme, a plurality of devices achieve a single function is broken through, high integration of the devices is achieved, the number of the devices and the installation space are reduced, and the installation and maintenance cost is reduced.
Owner:QINGDAO TOPSCOMM COMM +2
Water boiler with built-in descaling instrument
ActiveCN222617217UReduce installation costsQuality assuranceControl of fluid heatersSolenoid valveProcess engineering
The utility model relates to the technical field of water boiling machines, and provides a water boiling machine with a built-in descaling instrument, which comprises a water boiling machine shell and a water boiling machine inner container, and a quick connection normally closed solenoid valve, a water inlet solenoid valve, a water mixing quick connection tee joint and a storage tank are respectively arranged between the water boiling machine shell and the water boiling machine inner container. The storage tank and the quick-connection normally-closed solenoid valve are jointly and fixedly connected with a descaling agent conveying pipe, the water inlet solenoid valve is fixedly connected with a water inlet pipe, the storage tank, the water mixing quick-connection tee joint and other structures are arranged, a descaling agent is arranged in the storage tank, the quick-connection normally-closed solenoid valve, the water inlet solenoid valve and the water drainage solenoid valve are accurately controlled, and the descaling agent conveying pipe is connected with the water inlet pipe. By means of the technical scheme, automatic regular descaling of the device is achieved, the additional installation cost of the water purification filtering device is avoided, the high efficiency and quality of descaling operation are guaranteed, regular descaling is conducted, the descaling quality and efficiency are guaranteed, and the problems that in the prior art, cost is low, and practicability is poor are solved.
Owner:佛山市大灵电器有限公司
Compressor driver integrated with heating assembly and compressor
InactiveCN119554210Aachieve electrical connectionHighly integratedPositive displacement pump componentsElectric heatingControl lineControl circuit
The compressor driver comprises a control shell, a control assembly, a heating shell and the heating assembly, the heating assembly is fixedly arranged in the heating shell, the control assembly is fixedly arranged in the control shell, the heating shell is detachably connected with the control shell, and the heating assembly is electrically connected with the control assembly; a control circuit board is arranged in the control assembly, and a heating output terminal arranged on the control circuit board is electrically connected with a heating connector on the heating assembly so as to supply power to the heating assembly; a water terminal sensor arranged on the control circuit board is electrically connected with a temperature sensor on the heating assembly so as to be used for collecting the temperature of the water inlet and the temperature of the water outlet in the heating shell, and therefore electric connection between the heating assembly on the heating shell and the control assembly on the control shell can be achieved without additional configuration. Therefore, while the integration level is improved, the equipment complexity, the installation difficulty and the cost are reduced.
Owner:深圳艾为电气技术股份有限公司
Damper with parallel rotating eddy current damping device
ActiveCN119435634AImprove internal space utilizationcompact structureNon-rotating vibration suppressionElectrical conductorInerter
The invention discloses a damper with a parallel rotating eddy current damping device, comprising: a mounting seat comprising a bottom plate and a plurality of columns; the mass block group is supported on the bottom plate through a plurality of elastic elements and is in sliding connection with the stand column in the height direction; the screw rod is fixed on the bottom surface of the mass block group; the first damping disc comprises a first conductor plate and is fixed in the middle of the bottom plate through a supporting frame; the magnet rotating disc is arranged under the first conductor plate in parallel, and a nut arranged on the screw in a sleeving mode penetrates through the first conductor plate and is fixedly connected with the magnet rotating disc; and the second damping discs are supported at the bottom of the magnet rotating disc at intervals in the circumferential direction of the magnet rotating disc, and any second damping disc is a rolling type rotating eddy current damping device. Damping force is provided through the first damping disc and the second damping disc together, under the condition that the space size of the damper is not changed, the energy consumption density of the damper is remarkably improved, meanwhile, the inertia coefficient and the damping efficiency are improved, and the vibration suppression effect is guaranteed.
Owner:CCCC ROAD & BRIDGE SPECIAL ENG +1
Rotary locking type nose suitable for modularized unmanned aerial vehicle
PendingCN119460204Aquick disassemblyprecise positioningFuselage framesControl engineeringUncrewed vehicle
The rotary locking type machine head comprises a machine body and a machine head body, a plurality of positioning grooves are formed in a partition frame of the machine body in an annular array mode, and each positioning groove is of an L-shaped structure and comprises an inlet part and a locking part; a positioning ring is arranged on the rear end face of the machine head, a plurality of positioning protruding blocks are arranged on the outer ring of the positioning ring in an annular array mode, the number of the positioning protruding blocks is the same as that of the positioning grooves, the positioning protruding blocks and the positioning grooves are in one-to-one correspondence, and the positioning protruding blocks are embedded into the positioning grooves and then rotate to be fixed. By arranging the positioning groove, the positioning ring and the positioning convex block, the machine body and the machine head can be quickly disassembled and assembled, and compared with traditional bolt connection, the machine is quicker, more reliable and more efficient, positioning is convenient, mounting can be conducted without the help of redundant tools, and the mounting cost is reduced.
Owner:浣江实验室 +1
Dry transformer fault characteristic gas detection device and detection method
PendingCN119643792AConvenient data loggingeasy to analyzeMaterial analysisTransformerControl engineering
The invention belongs to but is not limited to the technical field of gas concentration monitoring, and discloses a dry-type transformer fault characteristic gas detection device and method, and the device comprises a sensor module, a power supply module, and a central control module. The sensor module comprises a gas sensor and a circuit module matched with the gas sensor, and is used for collecting gas concentration data in real time by utilizing the gas sensor and transmitting the gas concentration data to the central control module; and the power supply module is composed of a power supply module, a voltage conversion module and a peripheral module and is used for providing stable power supply support for the whole system and managing communication and function integration among the components. The system is suitable for various environment monitoring requirements such as laboratories, industrial places and warehouses, the safety management level can be effectively improved, and it is ensured that the concentration change of harmful gas in the environment can be reflected in time.
Owner:STATE GRID HENAN ELECTRIC POWER COMPANY ZHENGZHOU POWER SUPPLY CO +1
Building indoor wooden wallboard structure
The utility model relates to the technical field of wall decoration, and discloses a building indoor wooden wallboard structure which comprises a plurality of wooden wallboards, standard cushion blocks and single-face decorative edge end cushion strips. A plurality of standard cushion blocks are fixed on the surface of a reinforced concrete beam column or a brick wall through gas steel nails; the single-face decorative edge end filler strip is located on a reinforced concrete beam column or a brick wall and fixed to the surface of the reinforced concrete beam column or the brick wall through air steel nails. And a plurality of wood wallboards are mounted on the standard cushion blocks and the single-sided decorative edge end part cushion strips in a bonding manner. Compared with a wood wallboard structure in the current home market, the building indoor wood wallboard structure has the advantages that the indoor installation process of the wood wallboard structure can be simplified, and special aluminum alloy buckling strips and special aluminum alloy splicing strips which are high in price and cost do not need to be used, so that the cost in the aspects of installation, production, transportation and the like of the indoor wood wallboard is greatly reduced.
Owner:FUJIAN DONGDE WOOD IND CO LTD +1
Unmanned aerial vehicle hybrid deployment flight control system
PendingCN119511868AGuaranteed real-timeGuaranteed independenceProgramme controlComputer controlControl systemUncrewed vehicle
The invention discloses an unmanned aerial vehicle hybrid deployment flight control system. The system comprises an airborne computing unit arranged on the unmanned aerial vehicle, a computing power CPU of the airborne computing unit comprises a plurality of cores, and flight control software is installed on the airborne computing unit in a hybrid deployment mode; a specific core of the computing power CPU runs the flight control software and the RTOS real-time domain; other cores of the computing power CPU run a Linux operating system and an intelligent computing domain, and the intelligent computing domain is used for executing an intelligent computing task; and different cores of the computing power CPU are connected through a communication bus. According to the invention, the flight control software and the intelligent computing task are mixed and deployed on different cores of the same airborne computing unit, so that when the airborne computing unit needs to be configured, an independent flight control board card is not used any more; flight control software and an intelligent computing task share one computing power CPU, redundancy and volume increase of multiple hardware modules are avoided, and installation complexity and cost are effectively reduced.
Owner:HUAZHI (BEIJING) TECH CO LTD
Method for forming outer wall by multi-layer wallboard and steel structure
PendingCN119616099AImprove connection strengthImprove connection stabilityWallsClimate change adaptationLaser rangingSteel frame
The invention belongs to the technical field of novel fabricated buildings, and particularly relates to a method for forming an outer wall by multiple layers of wallboards and a steel structure, a plurality of wallboards which are mutually inserted are included, an outer wall layer is formed by pouring ceramsite and concrete, and an inner wall layer is made of aerated concrete; the assembling modules are formed by the C-shaped steel and the wallboards capable of being assembled, the connecting strength and stability between the wallboards are greatly improved during construction, the wallboards are installed on the H-shaped steel frame through laser ranging, radar positioning, a mechanical arm and the like, and a rigid and hard outer wall is built; the wallboard can be hoisted and inserted into the H-shaped steel structure at a time after the ground and the C-shaped steel are combined into a large panel, the multi-layer wallboard is of a double-layer new material structure or a sandwich new material structure, the whole wallboard is of a lightweight design, the overall weight of the wall is reduced, meanwhile, the excellent strength is achieved, and the wall bodies are assembled conveniently and rapidly.
Owner:CHENGJIN PLANNING (GUANGZHOU) CO LTD
Method and system for checking branch relation of low-voltage transformer area
InactiveCN119646549Aefficient designMeet real-time requirementsInformation technology support systemCorrelation coefficientTransformer
The invention discloses a low-voltage transformer area branch relation checking method, which comprises the following steps of: acquiring current and voltage data of each user in the same transformer area, and recording a matching number between current and voltage effective value cross phases; according to the recorded matching number and the normalized association strength, constructing a voltage and current change association matrix between the users; according to the incidence matrix, constructing a distance matrix based on a Pearson correlation coefficient; using a DBSCAN clustering method to carry out clustering analysis on the user to obtain a preliminary user branch; the DBSCAN clustering result is fused with the minimum spanning tree, and user branch division is optimized; branch relation checking is conducted, a final branch division result is output, and the branch division result comprises normal branches and abnormal users. The invention further discloses a corresponding system. According to the method, the existing voltage and current data are utilized, and the DBSCAN clustering and the minimum spanning tree algorithm are combined, so that accurate identification and optimization of the branch relation are realized.
Owner:SHENZHEN POWER SUPPLY BUREAU
Material pumping pipeline with dredging function
ActiveCN222555998UIncrease productivityReduce installation costsBulk conveyorsProcess efficiency improvementExhaust valveMarine engineering
The utility model provides a material pumping pipeline with a dredging function, and relates to the technical field of material pumping pipelines, the material pumping pipeline comprises a conveying pipe and a support, the end face of the conveying pipe is fixedly connected with a bent pipe, and the outer surface of the bent pipe is provided with a communicating groove; and the dredging assembly is fixedly connected to the outer surface of the bent pipe and comprises a connecting pipe and a supporting plate, a butterfly valve is arranged in the connecting pipe, driving shafts are symmetrically and rotationally connected to the outer surface of the side, away from the bent pipe, of the supporting plate, and fixing sleeves are fixedly connected to the outer surfaces of the driving shafts. According to the utility model, when the blockage of the material pumping pipeline is found, clotted particles can be scattered by utilizing the rotation of the stirring rod, that is, the purpose of automatically dredging the material pumping pipeline is realized through the matched operation of the butterfly valve, the exhaust valve, the multi-stage electric telescopic rod and the motor, the material pumping pipeline does not need to be disassembled for cleaning and dredging, and the production efficiency is effectively improved.
Owner:NINGBO LONGLI GRAND ADVANCED MATERIALS CO LTD
Road collapse monitoring method and system by multiplexing existing communication optical cable
ActiveCN119666060AReduce monitoring costsReduce installation costsMeasurement devicesFibre transmissionData acquisitionMonitoring methods
The invention relates to a road collapse monitoring method and system by multiplexing an existing communication optical cable, the method comprises the steps of data acquisition and processing, conversion relation acquisition, mapping relation construction and road collapse monitoring, the system comprises a communication optical cable, a junction box, a distributed optical fiber demodulation device and a computing terminal, the computing terminal is used for implementing the method. Compared with the prior art, the method has the advantages of wide monitoring range, low monitoring cost, high real-time performance, high accuracy and the like.
Owner:TONGJI UNIV
Voltage-matched two-end perovskite-crystalline silicon laminated assembly and preparation method thereof
The invention discloses a voltage-matched two-end perovskite-crystalline silicon laminated assembly and a preparation method thereof, the laminated assembly comprises a perovskite top assembly and a crystalline silicon bottom assembly, the perovskite top assembly comprises a plurality of square perovskite assemblies, the square perovskite assemblies are provided with perovskite battery pieces in a laser scribing mode, and the perovskite battery pieces are arranged on the crystalline silicon bottom assembly. The adjacent perovskite cell pieces are connected in series and in parallel, the crystalline silicon bottom assembly comprises a plurality of crystalline silicon cell pieces connected in series and in parallel, the perovskite top assembly and the crystalline silicon bottom assembly are independently stacked, and the MLPE assembly is connected to one side of the crystalline silicon bottom assembly in series and is integrally connected with the perovskite top assembly in parallel. The top assembly adopts a splicing mode, efficiency loss caused by area expansion of a single perovskite assembly is avoided, the bottom assembly adopts a high working voltage and an MLPE assembly, and when the environment temperature changes, the working voltage of the bottom cell assembly can be adjusted, so that the bottom cell assembly is matched with the top cell assembly; compared with a conventional four-end assembly, the system installation cost is reduced, and meanwhile the power generation capacity of the four-end assembly is reserved.
Owner:CANDO SOLARPHOTOELECTRIC TECH (CHANGZHOU) CO LTD
Wastewater treatment dosing system
ActiveCN222631109Ureduce settingsReduce installation costsRotary stirring mixersTransportation and packagingProcess engineeringPrinted circuit board
The utility model relates to the technical field of printed circuit board wastewater treatment, and discloses a wastewater treatment dosing system which comprises a controller used for controlling a water pump and a one-way valve to start and stop, medicament equipment used for storing various medicaments, and a plurality of wastewater treatment pools which are sequentially arranged and sequentially communicated, a first pipeline is arranged between each agent pool and the corresponding wastewater treatment pool, a first one-way valve is arranged on each first pipeline, each agent pool is located at a high position above the wastewater treatment pool, a first liquid level sensor used for monitoring the water level is arranged in each wastewater treatment pool, a second pipeline is arranged between every two adjacent wastewater treatment pools, and the first liquid level sensor is connected with the second pipeline. Each second pipeline is provided with a first water pump and a second one-way valve, and the first liquid level sensor, the first one-way valve, the first water pump and the second one-way valve are all connected with the controller. The arrangement of water pumps can be reduced, and the equipment installation and maintenance cost is reduced.
Owner:CHONGQING HANYING ENVIRONMENTAL MANAGEMENT CO LTD
Dry bulk cargo warehouse detection vehicle positioning method, system and terminal based on LED light source
PendingCN119469124AHigh positioning accuracylow costNavigation by speed/acceleration measurementsBulk cargoPositioning technology
The invention relates to the technical field of indoor positioning, and discloses a dry bulk warehouse detection vehicle positioning method, system and terminal based on an LED light source. A plurality of LED light sources are arranged in the dry bulk warehouse; the threshold range of the attitude angle of the detection vehicle is pre-configured; according to the positioning method, the detection vehicle is positioned in real time, firstly, the attitude angle of the detection vehicle is obtained, and the positioning mode is automatically switched based on the relation between the attitude angle and the threshold range; in other words, if the attitude angle is within the threshold range, positioning is carried out based on the LED light source, and if the attitude angle is not within the threshold range, positioning is carried out based on the INS; and taking the positioning result of the detection vehicle at the previous moment as an initial filtering value, dynamically adjusting the state vector of the output result of the positioning mode, and filtering the initial filtering value and the output result of the positioning mode based on a Kalman filtering algorithm to obtain a final positioning result of the detection vehicle. According to the invention, the problems of GPS signal loss, INS positioning error accumulation, high UWB / INS scheme cost and the like when the detection vehicle works indoors can be solved.
Owner:NORTHEASTERN UNIV AT QINHUANGDAO
Railway wagon air brake modular assembly device
PendingCN119611454AReduce installation costsreasonable layoutRailway hydrostatic brakesRailway hydrodynamic brakesAir brakeWorking environment
The invention belongs to the technical field of railway wagon air braking, and discloses a railway wagon air braking modular assembling device which comprises an L-shaped hanging seat, a module hanging bracket and an air braking assembly, the air braking assembly comprises an auxiliary air cylinder, a double-chamber air cylinder, a pressure limiting valve and a 120 valve, the pressure limiting valve is installed on the module hanging bracket through an air path body, and the module hanging bracket is provided with an installation opening. The front side and the rear side of the module hanging bracket are provided with installation lapping plates, the L-shaped hanging seat and the installation lapping plates are vertically and mutually hooked and connected through bolts, and an upper longitudinal air cavity, a lower longitudinal air cavity and a vertical air cavity are formed in the air path body, the inner end of the lower longitudinal air cavity is communicated with two lower connectors on the left side of the pressure limiting valve, the inner end of the lower longitudinal air cavity on the front section penetrates leftwards to form a transverse air cavity, and the air brake integrated modular installation device has the advantages that air brake integrated modular installation is achieved, the space utilization rate is high, the structures are linked with one another, the working environment is improved, installation is easy and rapid, and cost is reduced.
Owner:CRRC SHENYANG CO LTD +1