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Differential Hall current sensor and manufacturing method thereof
ActiveCN119255695AIncrease the magnetic field strengthHigh measurement sensitivityCurrent/voltage measurementManufacture of electrical instrumentsCurrent transducerCondensed matter physics
The embodiment of the invention provides a differential Hall current sensor and a manufacturing method thereof, and belongs to the technical field of semiconductors. The differential Hall current sensor includes: a substrate; the magnet yoke is provided with a semi-enclosed structure formed by a bottom surface and two side surfaces positioned on the same side of the bottom surface, and the bottom surface is bonded on the substrate; the current bar is placed in the cavity of the semi-surrounding structure and allows two end parts of the current bar to extend out of the semi-surrounding structure; the insulating layer is arranged on the upper surface of the current bar and located in the cavity; the at least two Hall elements are symmetrically arranged on the two sides of the upper surface of the insulating layer in the current direction; the at least two groups of magnetism gathering blocks are attached to the magnetic induction surfaces of the at least two Hall elements; at least two groups of magnetism gathering blocks and the magnet yoke form a conducting magnetic circuit, and the magnetic field component of the current magnetic field in the parallel direction of the magnetic induction surface is deflected into the magnetic field component in the vertical direction. According to the differential Hall current sensor, the Hall perceptible magnetic field intensity is enhanced through the conduction magnetic circuit of the gathered current magnetic field, and the measurement sensitivity is improved.
Owner:SUZHOU JUZHEN PHOTOELECTRIC
Dryer with electric heating module and vehicle suspension air supply system using same
PendingCN119499830Asimple designlow costElectric heatingDispersed particle separationStructural deformationSuspension (vehicle)
The dryer comprises a dryer shell, an inner cavity of the dryer shell is divided into a drying agent cavity and a heating module wiring cavity which are independent of each other through an end face structure, a heating module barrel sleeve is arranged on the end face structure in a penetrating mode, and the two ends of the heating module barrel sleeve stretch into the two independent cavities respectively. Two air tap connectors communicated with the drying agent cavity are arranged on the outer wall of the dryer shell at intervals, a drying agent drying assembly is arranged between the outer wall, located between the two air tap connectors, of the heating module barrel sleeve and the inner wall of the dryer shell, and a heating body assembly is arranged in the heating module barrel sleeve. A connector assembly is arranged on the outer wall of the dryer shell and used for being connected with an external power source, and the heating body assembly is electrically connected with the connector assembly. According to the invention, related connector design is simplified, product cost is reduced, airtightness failure caused by structural deformation after long-term work of the plastic assembly is avoided, high-efficiency and low-loss heating control can be realized, and system arrangement is more flexible.
Owner:SHIJIA TECH
Automatic sprinkling irrigation system
PendingCN119256917Aflexible layoutSolve wasteBatteries circuit arrangementsWatering devicesSprayerControl cell
The invention provides an automatic sprinkling irrigation system which comprises a water storage device, the water storage device comprises a water storage piece and a rainwater collection piece, the rainwater collection piece is arranged at the upper end of the water storage piece, the rainwater collection piece is provided with a collection part, and the collection part is communicated with the water storage piece through a flow guide channel; the power supply device is arranged on the water storage device and comprises a photovoltaic panel, the sprinkling irrigation device comprises a water pipe and a nozzle, one end of the water pipe communicates with the water storage device, and the other end of the water pipe communicates with the nozzle; the control device comprises a sensor and a control unit. According to the technical scheme, the underground water storage part and the ground rainwater collection part are combined, rainwater is efficiently collected and stored, and evaporation loss and ground space occupation are reduced. The sprinkling irrigation device is connected with the water storage piece through a water pipe, sprayers can be flexibly arranged according to requirements, and uniform irrigation is achieved. The control device integrates a sensor and a control unit, monitors soil humidity, illumination and other environmental parameters in real time, automatically adjusts an irrigation strategy, ensures timely and appropriate irrigation, and solves the problem of water resource waste.
Owner:BEIJING FORESTRY UNIVERSITY
Full-active suspension system of automobile
PendingCN119239206ARealize regulationflexible layoutResilient suspensionsVehicle springsSolenoid valveHydraulic pump
The invention relates to the technical field of automobiles, in particular to an automobile full-active suspension system which comprises a shock absorber assembly, an external electromagnetic valve assembly and a two-way hydraulic pump, the shock absorber assembly comprises a piston rod, a first hydraulic cavity and a second hydraulic cavity, and the piston rod is arranged in the first hydraulic cavity; the external electromagnetic valve assembly comprises a valve block, a compression electromagnetic valve and a recovery electromagnetic valve, a first flow channel and a second flow channel which penetrate through the two opposite ends of the valve block are formed in the valve block, and the compression electromagnetic valve and the recovery electromagnetic valve are arranged on the valve block and can communicate with the first flow channel and the second flow channel correspondingly. The first ends of the first flow channel and the second flow channel are respectively communicated with an oil inlet and an oil return port of the bidirectional hydraulic pump, and the second ends of the first flow channel and the second flow channel are respectively communicated with the first hydraulic cavity and the second hydraulic cavity; the compression electromagnetic valve and the recovery electromagnetic valve are integrated on the valve block, and damping adjustment of the external electromagnetic valve assembly on the shock absorber is not affected, so that the installation position of the external electromagnetic valve assembly is not limited, and the external electromagnetic valve assembly is flexibly arranged.
Owner:SHANGHAI XIJIAN AUTOMOBILE SUSPENSION CO LTD
Online roller shape repairing equipment based on direct drive structure
ActiveCN119141346Apromote repairimprove securityRevolution surface grinding machinesGrinding drivesReciprocating motionElectric machinery
The invention discloses on-line roller shape repairing equipment based on a direct-drive structure, and relates to the technical field of roller repairing, the on-line roller shape repairing equipment comprises two horizontally-arranged working rollers and a linear motor, the two ends of the working rollers are installed on bearing seats, and the linear motor is provided with a grinding assembly; the linear motor is used for driving the grinding assembly to reciprocate in the length direction of the working roller. The linear motor comprises a fixed shaft and a movable shaft, the fixed shaft is parallel to the axis of the working roller, the movable shaft is arranged on the fixed shaft in a sleeving mode, the movable shaft can reciprocate in the length direction of the fixed shaft, the movable shaft cannot rotate on the fixed shaft, a coping assembly is arranged on the movable shaft, and the roller surface of the working roller is coped through the coping assembly. The online detection system is directly installed on the roller, the state of the roller can be monitored in real time, and errors caused by position changes of the roller are reduced; the mode that the grinding wheel is driven by the linear motor is adopted, and compared with a traditional motor, the occupied area of equipment is remarkably reduced.
Owner:YANSHAN UNIV
Stator laser welding machine
InactiveCN119566534AEasy fine-tuningSmall footprintWelding/soldering/cutting articlesMetal working apparatusSolder pasteLaser soldering
The invention belongs to the technical field of varnished wire welding, and particularly relates to a stator laser welding machine which comprises a base, a rotating part is connected to the upper end of the base, a plurality of clamps are connected to the upper end of the rotating part, and two conveying parts used for conveying the clamps are symmetrically connected to the upper end of the base. The upper end of the base is further connected with a material taking and placing unit used for taking out the workpiece from one conveying part and placing the workpiece in the clamp or taking out the workpiece in the clamp and placing the workpiece on the other conveying part, and the upper end of the base is further symmetrically connected with two laser welding units used for conducting laser welding on the workpiece in the clamp. The upper end of the base is connected with a solder paste dispensing unit used for dispensing solder paste on a workpiece in the clamp and a detection unit used for detecting the welding condition of the workpiece. The multiple unit modules including the material taking and placing unit, the solder paste dispensing unit, the laser welding unit and the detection unit are integrated, the occupied area can be effectively reduced through the compact design, and the device is more suitable for being used in the production environment with the limited space.
Owner:SHENZHEN NAISITE AUTOMATION EQUIPMENT CO LTD
Automatic loading and unloading assembly line
ActiveCN222523709USmall footprintflexible layoutLoading/unloadingConveyor partsAssembly lineChain link
The utility model discloses an automatic loading and unloading assembly line, which relates to the field of packaging equipment, and adopts the technical scheme that the automatic loading and unloading assembly line comprises a chain conveying mechanism, a chain conveying mechanism and an automatic loading and unloading mechanism, the loading and unloading mechanism is provided with a loading and unloading feed port and a first discharge port; the loading and unloading feeding port is in butt joint with the discharging end of the chain conveying mechanism. A shifting mechanism is arranged between the loading and unloading feed port and the first discharge port; the tray supply mechanism can convey trays to the first discharging port of the loading and unloading mechanism, and the shifting mechanism can convey the products from the chain conveying mechanism to the trays supplied by the tray supply mechanism. The assembly line has the beneficial effects that the assembly line in the scheme can be used for loading and unloading small strip-shaped flexible bagged products on a large scale, and the filling of a whole tray can be completed every time. And after filling is completed, the trays are pushed to the tray arrangement frame to be arranged, and taking and machining in the follow-up working procedure are facilitated.
Owner:HEFEI HAGONG YANAN IND TECH CO LTD
Double-column climbing device based on beam body and attachment device
ActiveCN119102358Aflexible layoutNode structure is simple and clearScaffold accessoriesBuilding support scaffoldsClassical mechanicsMechanical engineering
The invention discloses a beam-based double-column climbing device and attachment device.The double-column climbing devices are symmetrically arranged, sequentially penetrate through holes formed in the two sides of a main beam in a penetrating mode and are attached to the main beam of a structure through the attachment devices, and the tops of the climbing devices are connected with a jacking platform by arranging a transfer beam; the load of the jacking platform is transmitted to the climbing device through the transfer beam and then transmitted to the structural main beam through the attachment device, the attachment device is provided with the driving device in a matched mode, and the climbing track and the jacking platform can be jacked to the upper layer through jacking of the oil cylinder. Compared with a traditional wall attachment device, the device can be used for arranging the position of a fulcrum more flexibly, so that the device is not limited by the position of a wall, the jacking platform can be applied to a more general concrete structure system, and the application range of the jacking platform is widened.
Owner:CHINA CONSTR EIGHT ENG DIV CORP LTD
Intelligent water and fertilizer irrigation system and method based on Internet of Things and edge computing
The invention relates to an intelligent water and fertilizer irrigation system and method based on the Internet of Things and edge calculation. The system comprises a soil parameter sensing subsystem, a water and fertilizer parameter calculation subsystem, a water and fertilizer irrigation control subsystem and a remote state monitoring subsystem. The soil parameter sensing subsystem is used for collecting soil parameters in real time; wherein the soil parameters comprise moisture content, temperature content, conductivity and nitrogen, phosphorus and potassium content; the water and fertilizer parameter calculation subsystem is used for calculating irrigation parameters based on the soil parameters; wherein the irrigation parameters comprise required irrigation water quantity and required nitrogen, phosphorus and potassium contents; the water and fertilizer irrigation control subsystem is used for controlling the irrigation water amount and the content of nitrogen, phosphorus and potassium salt according to the irrigation parameters; and the remote state monitoring subsystem is used for monitoring irrigation state information. According to the method, the crop yield can be maximized and the resource use can be minimized at the same time under the framework of multi-objective optimization through the real-time AI calculation model, and scientific and efficient decision support is provided for agricultural management.
Owner:XIAN UNIV OF TECH
Concentrated light source optical fiber distributed lighting system and method
PendingCN119629817ARealize unified managementRealize energy savingElectrical apparatusEnergy saving control techniquesIlluminanceOptical fiber coupler
The concentrated light source optical fiber distributed lighting system comprises a concentrated light source module, an optical fiber transmission unit and a lighting terminal, and the concentrated light source module is integrated with a control unit; the optical fiber transmission unit is connected with the concentrated light source module and the lighting terminal; the concentrated light source module comprises a light source, an optical fiber coupler and a cooling fan. A use method of the concentrated light source optical fiber distributed illumination system comprises the following steps that S1, illumination intensity is input into an MCU through a human-computer interface, light is transmitted to an illumination terminal through an optical fiber transmission unit, and the illumination terminal scatters the light and projects the light to an illumination place; s2, the temperature sensor extracts a laser / LED module temperature signal and sends the laser / LED module temperature signal to the MCU; s3, the fan driving power supply judges whether to supply power to the cooling fan or not according to the signal of the MCU, and the cooling fan cools the concentrated light source module; and S4, the illuminance sensor collects the illuminance of the illumination target place and feeds back the illuminance to the MCU, and the laser / LED module is driven to emit light with the corresponding intensity.
Owner:SICHUAN HONGHUA IND
Explosion venting test system and method for simulating accidental explosion of industrial factory building structure
ActiveCN119147589AImprove convenienceImprove universalityMaterial exposibilityFoundation engineeringTEX-explosiveArchitectural engineering
The invention discloses an explosion venting test system and method for simulating accidental explosion of an industrial factory building structure, and belongs to the technical field of explosion test systems. The problems that the structure configuration of an existing explosion venting test platform is difficult to adjust, the arrangement flexibility of explosion venting measures is low, and the universality of the test platform is poor are solved. A T-shaped groove rigid platform of the foundation system is installed on a box type foundation, a plurality of structural columns of the assembly type structural system are connected with the T-shaped groove rigid platform in a matched mode, every two adjacent structural columns are connected through an inter-column connecting beam, and an assembly type wall body and a closed wall body are connected with the structural columns in a matched mode. An explosion space is defined by the assembly type wall bodies and the closed wall bodies, high-energy explosives of the explosion source control subsystems are arranged in the explosion space, the roof panels are installed on the assembly type wall bodies and the closed wall bodies, and explosion venting parts are machined on the assembly type wall bodies and the roof panels. According to the explosion venting test system, the structure size can be freely changed according to needs, and the convenience and universality of the explosion venting test are improved.
Owner:HARBIN INST OF TECH
Acoustic burial depth detection method for non-metal buried pipeline
PendingCN119105107AOptimized burial depth detection algorithmreduce restrictionsGeological measurementsVibratory signalEngineering
The invention discloses an acoustic burial depth detection method for a non-metal buried pipeline. The acoustic burial depth detection method comprises the following steps: 1, determining the projection of a to-be-detected buried pipeline on the ground; 2, determining a sounding point in the projection, and arranging three vibration signal receivers along a straight line in the normal direction of the projection; the first vibration signal receiver is located at a sounding point; 3, an audio frequency vibrator is adopted to continuously transmit specific frequency signals into the buried pipeline, and time differences tb and tc between the moment when the second vibration signal receiver and the third vibration signal receiver receive the sound wave signals and the moment when the first vibration signal receiver receives the sound wave signals are recorded; 4, calculating the distance d between the first vibration signal receiver, namely the sounding point and the axis of the buried pipeline; and 5, switching to the next sounding point to test the next distance d until all the distances d are obtained. According to the invention, the pipeline burial depth detection algorithm is optimized, the limitation on the placement position of the signal receiver is reduced, and the convenience and universality of the detection of the non-metal buried pipeline are improved.
Owner:SHANGHAI GAS ENG DESIGN & RES
Automobile front cover lock
ActiveCN222501360Ucompact structurereduce volumeNoise-prevention/anti-rattling lockingElectrical locking circuitsRatchetControl engineering
The utility model relates to the technical field of vehicle engineering, in particular to an automobile front cover lock which comprises a ratchet wheel, a pawl, a manual module and a suction module, the manual module comprises a manual pull rod and a manual shifting rod driven by the manual pull rod, the manual pull rod and the pawl are coaxial, the manual pull rod limits the pawl in a one-way mode, and when the front cover lock is unlocked, the ratchet wheel is driven by the manual shifting rod to rotate. The manual pull rod pulls the pawl through the limiting part so as to enable the pawl to release limiting of the ratchet wheel, the attraction module comprises an active attraction rod, when the front cover lock needs to be attracted, the active attraction rod is driven by the electric actuator to push the ratchet wheel, the pushed ratchet wheel enters the limiting of the pawl, and when the front cover lock is unlocked, the ratchet wheel is driven to move back and forth. When the manual pull rod pulls the pawl through the limiting part, the manual shifting rod is driven by the manual pull rod to push the driving suction rod aside, and therefore interference of the driving suction rod on the ratchet wheel is relieved. The technical problem that in the prior art, an automobile front cover lock cannot achieve the functions of electric opening, electric suction and manual release at the same time is solved.
Owner:VAST CHINA CO LTD
Optical cable route detection method and device, electronic equipment and storage medium
PendingCN119254321AImprove processing precisionimprove signal-to-noise ratioBidirectional transmissionTime domainOptical power
The invention relates to an optical cable route detection method and device, electronic equipment and a storage medium, and belongs to the technical field of optical fiber sensing and sensing networks. According to the method, vibration with specific frequency is emitted, the vibration and irrelevant vibration are distinguished, scattered light in a to-be-detected optical cable is collected to obtain a vibration signal, auxiliary signals are superposed in the scattered light when the optical power is low, the small signal processing precision is improved, and scattered signals are obtained according to the scattered light and processed. Converting the processed scattering signal to a frequency domain according to the vibration duration, accumulating time domain information to improve the frequency domain signal-to-noise ratio, improving the routing judgment accuracy, obtaining the peak-to-average ratio of the frequency domain signal, judging whether the corresponding vibration signal is an effective signal or not, taking the corresponding ground position point as an effective position point, and combining the peak-to-average ratio to judge whether the corresponding vibration signal is the effective signal or not. And obtaining a route position point right above the to-be-tested optical cable, and obtaining the route of the to-be-tested optical cable. According to the invention, the accuracy of vibration detection is improved, so that the accuracy of optical cable routing detection is improved.
Owner:WEISHI TECHNOLOGY (GUANGZHOU) CO LTD
Electro-hydraulic control valve, valve plate and control method for multi-pump system
ActiveCN119244598ARealize integrated designeliminate wasteServomotor componentsFluid-pressure actuator componentsMarine engineeringControl valves
The invention discloses an electro-hydraulic control valve for a multi-pump system, a valve plate and a control method, the valve plate of the electro-hydraulic control valve is integrated with a cut-off confluence valve and a main control valve core, and the valve plate is provided with an oil inlet, a first working port, a second working port, an oil inlet confluence channel and an oil return channel communicated with an oil return port; the cut-off flow collecting valve at least comprises a first working position, a second working position and a third working position, when the cut-off flow collecting valve is located at the first working position, an oil inlet of the cut-off flow collecting valve is communicated with a first opening, and unloading is conducted to an oil return channel; when the cut-off flow collecting valve is located at the second working position, the oil inlet of the cut-off flow collecting valve is communicated with the second opening, and oil is supplied to the main control valve element. When the cut-off confluence valve is located at the third working position, the oil inlet of the cut-off confluence valve is communicated with the third port, and confluence oil supply to the oil inlet confluence oil channel is achieved; an oil inlet of the main control valve element is connected to the oil inlet confluence oil channel, an oil return opening of the main control valve element is connected to the oil return oil channel, and a first opening and a second opening of the main control valve element are connected to the two working openings of the valve plate respectively.
Owner:JIANGSU ADVANCED CONSTR MASCH INNOVATION CENT LTD +1
Integrated thin-wall lattice cooling plate and electronic component
PendingCN119255544AAchieve lightweightLarge specific surface areaModifications by conduction heat transferElectronic componentCold plate
The invention discloses an integrated thin-wall dot matrix cooling plate and an electronic component, the integrated thin-wall dot matrix cooling plate comprises a hollow cold plate body, a cooling flow channel, a liquid inlet and a liquid outlet are arranged in the cold plate body, the liquid inlet and the liquid outlet are communicated with the cooling flow channel, the cooling flow channel is filled with a hollow heat exchange body, and the hollow heat exchange body is filled with a liquid outlet. The positions, except for the cooling flow channels, of the cold plate body are arranged to be of the hollowed-out structure, so that the whole cold plate body can achieve light weight, the hollowed-out heat exchange bodies are arranged in the cooling flow channels, the contact positions of cooling liquid and the heat exchange bodies have the larger specific surface area, and therefore the heat exchange effect of the cold plate is better.
Owner:BEIJING INST OF RADIO MEASUREMENT
Drive-by-wire hydraulic steering braking system and method
The invention discloses a drive-by-wire hydraulic steering braking system and method, and relates to the field of vehicle chassis. The drive-by-wire hydraulic controller obtains a control instruction of the vehicle control unit and controls the steering valve group to adjust the angular velocity and deflect at a target steering angle according to the control instruction so as to perform movement in different steering modes; the kingpin angle sensor obtains the actual steering angle and the actual angular speed of the mechanical vehicle and feeds back the actual steering angle and the actual angular speed to the drive-by-wire hydraulic controller; the drive-by-wire hydraulic controller obtains a steering angle difference value according to the steering angle and a target steering angle, obtains an angular velocity difference value according to an actual angular velocity and a target angular velocity, and controls a steering valve group to adjust the steering angle and the angular velocity according to the steering angle difference value and the angular velocity difference value by adopting a PID control method; and the brake valve group brakes according to the brake instruction. The steering requirements of various types of vehicles can be met, and the safety redundancy is high.
Owner:SHENZHEN ZHIXING ZHIQU TECH CO LTD
Energy storage cabinet and energy storage system
ActiveCN222566663Uflexible layoutImprove cooling uniformitySecondary cellsFire rescueElectrical batteryProcess engineering
The utility model provides an energy storage cabinet and an energy storage system.The energy storage cabinet comprises a cabinet body, a plurality of battery packs and a fire fighting assembly, the battery packs and the fire fighting assembly are contained in the cabinet body, the battery packs are arranged in the height direction of the cabinet body, and the fire fighting assembly comprises a fire fighting pipeline and a plurality of spraying devices; each spraying device is communicated with the fire-fighting pipeline, the fire-fighting pipeline is fixed on the inner wall of the cabinet body, the fire-fighting pipeline is used for conveying a fire-fighting agent, each spraying device is used for spraying the fire-fighting agent, the spraying devices are arranged in at least one row, the direction of the row is parallel to the height direction, and the height direction of the fire-fighting pipeline is parallel to the height direction. And each spraying device is correspondingly arranged at an interval between two adjacent battery packs. According to the energy storage cabinet and the energy storage system provided by the embodiment of the invention, the cooling uniformity in the energy storage cabinet can be improved, and the risk of thermal runaway is reduced.
Owner:HUAWEI DIGITAL POWER TECH CO LTD
Three-cable photovoltaic flexible support system
ActiveCN119315909APhotovoltaic inclination angle adjustablestable structurePhotovoltaic supportsSolar heating energyStructural engineeringLand use
The invention discloses a three-cable photovoltaic flexible support system, belongs to the technical field of photovoltaic supports, and can solve the problems that a traditional fixed photovoltaic support cannot be used and installed under complex mountain conditions, the land use efficiency is reduced, and the overall photovoltaic power generation capacity is affected. The system comprises two end fixing units which are symmetrically arranged at the two ends of an erection area; the middle supporting units are distributed between the two end fixing units in a row; one ends of the first main cable and the second main cable are connected with one end fixing unit, and the other ends of the first main cable and the second main cable sequentially penetrate through the two ends of the tops of the middle supporting units and are connected with the other end fixing unit; two ends of the bottom edges of the inverted tripods are respectively fixed on the first main rope and the second main rope; one end of the auxiliary cable is connected with one end fixing unit, and the other end of the auxiliary cable sequentially penetrates through the vertexes of the inverted triangular supports and the middles of the tops of the middle supporting units to be connected with the other end fixing unit. The invention is used for supporting the photovoltaic module.
Owner:NORTHWEST ENGINEERING CORPORATION LIMITED
Protective structure suitable for broken rock and construction method
PendingCN119466002Aflexible layoutreduce investmentClimate change adaptationExcavationsPre stressSlope stability
Owner:SICHUAN ROAD & BRIDGE EAST CHINA CONSTRUCTION CO LTD
Battery box body, battery system and engineering vehicle
PendingCN119518203Areduce weightreduce manufacturing costSecondary cellsPropulsion by batteries/cellsElectrical batteryMechanical engineering
The invention relates to a battery box, a battery system and an engineering vehicle, and the battery box comprises a frame assembly (1) which comprises a first frame (11) and a second frame (12) which are oppositely arranged along a first direction (X), and a third frame (13) and a fourth frame (14) which are oppositely arranged along a second direction (Y); the heat exchange plate (2) is vertically connected with the frame assembly (1), and an accommodating space is formed by the heat exchange plate (2) and the frame assembly (1); the battery module (3) is arranged in the accommodating space; the first frame (11), the second frame (12), the third frame (13), the fourth frame (14) and the heat exchange plate (2) are formed through extrusion. The first direction (X) is perpendicular to the second direction (Y).
Owner:JIANGSU XCMG CONSTRUCTION MACHINERY RESEARCH INSTITUTE LTD
Slope landslide and bridge collapse disaster monitoring and early warning device
ActiveCN119418484Aimprove perceptionGuaranteed accuracyHuman health protectionInstrument screening arrangementsOvervoltageDisaster monitoring
The invention discloses a slope landslide and bridge collapse disaster monitoring and early warning device, and belongs to the technical field of geological monitoring. The method comprises the following steps: under the condition of carrying out monitoring and early warning on a slope landslide disaster, a sensing line is arranged on a slope through longitude lines or latitude lines; under the condition that monitoring and early warning are carried out on bridge collapse disasters, the sensing lines are arranged around each beam piece and intersect with the beam pieces. Under the condition that the slope does not slide or the bridge does not collapse, the voltage between the first wiring terminal and the second wiring terminal is in a first state; under the condition that the slope slides or the bridge collapses, the sensing circuit breaks, and the voltage detection circuit determines that the voltage between the first wiring terminal and the second wiring terminal is in a second state; and determining the voltage between the first terminal and the second terminal as a third state through the voltage detection circuit under the condition of sensing that the circuit is short-circuited. According to the method, early warning can be carried out on the condition that the broken line may be short-circuited at the water accumulation position, and the reliability is high.
Owner:FUJIAN HIGH SPEED TECH CONSULTING CO LTD +2
Commercial vehicle air inlet system silencer
ActiveCN222162790Urealize incident waveTo achieve the purpose of noise reductionIntake silencers for fuelBroadbandNoise reduction
The utility model provides a silencer for an air inlet system of a commercial vehicle, which comprises a main pipeline, an air inlet is arranged at one end of the main pipeline, an air outlet is arranged at the other end of the main pipeline, a plurality of silencing cavities are arranged on a pipe body of the main pipeline, and ventilation pipelines are arranged in the silencing cavities. The air inlet system has the advantages of being wide in silencing frequency band, high in noise reduction amplitude, flexible in arrangement and the like, and is suitable for various commercial vehicle air inlet systems needing designated broadband silencing.
Owner:SINO TRUK JINAN POWER CO LTD
High-rise building unmanned aerial vehicle express intelligent receiving and sending platform and unmanned aerial vehicle express receiving and sending method
PendingCN119284393Aflexible layoutEfficient use ofStorage devicesSensing by electromagnetic radiationSoftware engineeringOperating system
Owner:HARBIN HUAZE DIGITAL TECH CO LTD
Novel double-steel-plate concrete composite wall structure for bridge tower
ActiveCN222594599Uincrease stiffnesscontrol deformationArchitectural engineeringMaterial consumption
The utility model relates to a novel double steel plate concrete composite wall structure for a bridge tower, which comprises a shear wall system, two ends of the shear wall system are connected with steel-concrete composite columns through high-strength bolts, and the shear wall system comprises two wall steel plates which are arranged in parallel. A plurality of longitudinal partition plates are erected between the two wall body steel plates at intervals in the length direction of the wall body steel plates, the longitudinal partition plates are vertically and fixedly connected to the two wall body steel plates, a plurality of round lightening holes are formed in the longitudinal partition plates, and in-wall concrete is poured between the two wall body steel plates and the longitudinal partition plates. Longitudinal partition plates with lightening holes are arranged in the shear wall system to serve as stiffening ribs, and long studs serve as connecting pieces of a wall steel plate and concrete in the wall, so that the wall can be divided into a plurality of cavities, the construction form is simple, the stress of the connecting pieces is clear, the material consumption is reduced, and the construction cost is reduced. And the strength, ductility, corrosion resistance and fireproof performance of the structure are enhanced.
Owner:FUZHOU UNIV
Large-span basement multi-stage water guide and drainage structure and construction method
PendingCN119663882AEasy constructionensure safetySewerage structuresFoundation engineeringBasementLine tubing
The invention discloses a large-span basement multi-stage water guide and drainage structure and a construction method, and belongs to the technical field of building construction. The drainage guide pipes are hung below a main beam of a basement structure, and every two adjacent drainage guide pipes are connected through a three-way pipe. The two sides of the three-way pipe are in sealed connection with the drainage guide pipes on the two sides through fixing glue respectively, and the other side of the three-way pipe is vertically arranged upwards. The drainage branch pipe is hung below a secondary beam of the basement structure; the water inlet end of the drainage branch pipe is arranged in the dewatering well and connected with a water pump in the dewatering well, and accumulated water in the dewatering well is sucked through the water pump; the water outlet end of the drainage branch pipe is communicated with the three-way pipe between the drainage guide pipes; the water outlet end of the drainage guide pipe closest to the water-collecting well is communicated with the water-collecting well; the water collecting well is sequentially communicated with a peripheral drainage ditch and a municipal pipeline through a pipeline to drain accumulated water. The water guide and drainage system is optimized, and compared with traditional ground pipeline pulling and arranging, the problem that ground pipelines are arranged disorderly is solved, and convenience is provided for construction.
Owner:ZHONGTIAN CONSTR GROUP
Cold storage plate assembly for large refrigeration house and refrigeration house goods shelf
ActiveCN222528058Usave spaceflexible layoutLighting and heating apparatusStationary refrigeration devicesRefrigerationCold storage
The cold storage plate assembly for the refrigeration house comprises a first phase change cold storage plate installed on the top layer of the goods shelf, a second phase change cold storage plate installed on the secondary top layer of the goods shelf and a third phase change cold storage plate installed at the end portion between the top layer and the secondary top layer of the goods shelf. The first phase change cold storage plate and the second phase change cold storage plate are horizontally arranged between cross beams of the goods shelf through connecting pieces I, and the third phase change cold storage plate is vertically arranged between end stand columns of the goods shelf through connecting pieces II.
Owner:LUOYANG RUICHANG ENVIRONMENGTAL ENGINEERING CO LTD +1
Offshore wind power generation ship
PendingCN119262201AImprove utilization efficiencyflexible layoutWaterborne vesselsMachines/enginesIntegrated designOffshore wind power
According to the offshore wind power generation ship, a ship body serves as a base body, and a plurality of cross beams and vertical rods are arranged on the two sides of the ship body, so that the layout of blades is more flexible, the angle or position can be adjusted according to changes of the wind direction and the wind speed, and therefore the wind energy capturing efficiency is maximized; the adaptability and stability of the wind power generation ship under different sea conditions and climate conditions are enhanced, the blades are connected with the power generation unit, rich wind energy resources on the sea can be efficiently captured and converted into electric energy, meanwhile, the power generation unit is directly connected to the ship body driving unit, instant conversion and utilization of energy are achieved, and the energy utilization rate is increased. According to the integrated design, the energy transmission process is simplified, energy loss is reduced, the whole system is more compact and efficient, and reliable guarantee is provided for autonomous navigation and power supply of the ship.
Owner:XIAN THERMAL POWER RES INST CO LTD
Unmanned aerial vehicle for rice planting and supply platform thereof
PendingCN119568456Aeasy to replacereduce exposureAircraft componentsInsect catchers and killersElectrical batteryUncrewed vehicle
The invention discloses an unmanned aerial vehicle for rice planting and a supply platform of the unmanned aerial vehicle, and belongs to the technical field of unmanned aerial vehicles and supply platforms, the unmanned aerial vehicle for rice planting and the supply platform are included, the supply platform comprises a moving trolley, an operation platform, a supply box, a limiting assembly and a replacement assembly, and the limiting assembly is located in the operation platform; the limiting assembly comprises a shell, a bidirectional adjusting assembly and a limiting plate, wherein the bidirectional adjusting assembly and the limiting plate are located in the shell. The unmanned aerial vehicle body is clamped through the limiting assembly. The replacing assembly comprises a synchronous belt assembly, a supporting plate, a pesticide box limiting groove and a battery limiting groove, wherein the pesticide box limiting groove and the battery limiting groove are located in the supporting plate. The unmanned aerial vehicle body replaces a pesticide box and a battery body through the replacing assembly. And a medicine filling barrel, a charging assembly and a standby battery are arranged in the supply box. The medicine box and the battery body can be conveniently replaced through the replacement assembly, and the labor intensity is relieved; and meanwhile, the unmanned aerial vehicle can be parked and transferred along with the vehicle conveniently, and rapid replenishment and flexible arrangement are achieved.
Owner:CHENGDU VOCATIONAL COLLEGE OF AGRI SCI & TECH +1
AC pre-charging relay control method of photovoltaic energy storage inverter
ActiveCN119134599Areduce volumeflexible layoutBatteries circuit arrangementsEmergency protection detectionElectrical batteryDropout voltage
The invention discloses an AC pre-charging relay control method for a photovoltaic energy storage inverter, and the method comprises the steps: carrying out the switching-on and switching-off triggering of a relay, setting a threshold Uth1 and a voltage fluctuation threshold phi, and switching on an AC pre-charging relay when the periodically sampled battery voltage is greater than Uth1 and the periodically sampled battery voltage fluctuation is smaller than the voltage fluctuation threshold phi; a voltage difference U is set, and the voltage reduction state of the current battery is judged according to periodic sampling of the battery voltage; and when the difference value of any two of the periodic sampling voltages is greater than U and the sampling current of the battery is 0, the alternating-current pre-charging relay is switched off. The alternating-current relay replaces a direct-current relay to meet the design requirements of miniaturization and compactness, so that the size is reduced, the layout is flexible, and the cost is reduced. The circuit breaker protection device can realize circuit breaker protection of zero-current monitoring, avoids the generation of electric arcs, guarantees the use safety, meets the requirement for stable control of the on-off circuit of the relay, and avoids the occurrence of an abnormal circuit after the battery fault is recovered.
Owner:SUZHOU HYPONTECH CO LTD