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Model fine tuning method and system based on task priority and elastic weight solidification
ActiveCN119578859Arealization reservationreduce constraintsData processing applicationsKnowledge representationComputational modelKnowledge graph
The invention discloses a model fine tuning method and system based on task priority and elastic weight solidification, belongs to the technical field of machine learning, and aims to solve the technical problem of how to provide a stable, efficient and low-power silk screen manufacturing model which can adapt to various complex production scenes. Comprising the following steps: collecting sample data, and dividing the sample data into a plurality of subsets; service weights and priority coefficients of all new tasks in the silk screen manufacturing process are analyzed based on the sorted subsets; constructing a knowledge graph based on the entities and the relationship between the entities; calculating the importance degree of the model parameters to the old task based on the Fisher information matrix, and adjusting the priority level of the model parameters based on the knowledge graph; and on the basis of the Fisher information matrix, updating a loss function of the silk screen manufacturing model under the new task through EWC, and correcting the current silk screen manufacturing model on the basis of entities and relationships in the knowledge graph, so that multi-task model fine tuning is realized.
Owner:SHANDONG INSPUR SCI RES INST CO LTD
Correcting mechanism
The utility model provides a correction mechanism. The correction mechanism comprises a rack, a distance measuring sensor and a correction assembly, the distance measuring sensor is arranged on the rack or the correction assembly and used for detecting the opening width of a workpiece. The correction assembly is arranged on the rack and used for correcting a workpiece according to a detection signal of the distance measuring sensor; the number of the correcting assemblies is multiple, and the multiple correcting assemblies are sequentially arranged in the length direction of the rack. Compared with the prior art, the correction mechanism provided by the utility model can improve the correction precision and efficiency of the workpiece.
Owner:HENGYANG HELI INDAL VEHICLE
Modularized pipeline robot capable of achieving active and passive radial size adjustment
ActiveCN119508640AImplementing Angle ChangesGuaranteed uptimePigs/molesLinear motionControl engineering
The invention discloses a modular pipeline robot capable of achieving active and passive radial size adjustment, and belongs to the technical field of pipeline robots. The pipeline robot aims at solving the problems that in the prior art, due to the fact that a pipeline robot is large in size, the turning performance is poor, the reducing adjustment scale is small, and structural operation is unstable. The device comprises an active reducing module, a passive reducing module, an execution mechanism module and a control and energy module. Three passive reducing modules in a circular array are arranged on the outer side of the active reducing module, each passive reducing module comprises a track structure and is connected with the active reducing module, and the active reducing module is provided with a transmission part with a planar spiral groove and converts rotary motion into radial linear motion. The distance between the crawler belt of the passive reducing module and the machine body is actively adjusted, and self-locking can be achieved, so that crawler belt feet can stably make contact with the inner wall of the pipeline; the passive reducing module crosses obstacles on the inner wall of the pipeline through asymmetric compression of the two spring shock absorbers.
Owner:JILIN UNIVERSITY
Integrated forming device for automobile chip heat dissipation plate
ActiveCN119456759AImprove processing efficiencyHighly integratedShaping toolsMetal-working feeding devicesMetal machiningHeat sink
The invention relates to the technical field of metal processing, in particular to an automobile chip heat sink integrated forming device which comprises a processing platform, a control box and an aluminum alloy body are arranged on the processing platform, and an extrusion forming mechanism for pressing an aluminum alloy heat sink is arranged on the control box. An extrusion forming mechanism is arranged on the control box, a plate processing mechanism for flattening the aluminum alloy body is arranged on one side of the extrusion forming mechanism, an automatic pushing mechanism is arranged on the control box, a cooling auxiliary mechanism for cleaning and cooling the aluminum alloy body is arranged on the machining platform, the extrusion forming mechanism comprises an installation boss fixedly installed on the control box, and a fixing die is arranged on the installation boss. By arranging the extrusion forming mechanism and utilizing mutual cooperation of an extrusion mold, a pressing square plate and a cutting tool, pressing, heating shaping, cutting and demolding of a plate can be integrally completed, the integration degree is high, an aluminum alloy body does not need to be transferred back and forth among multiple machining devices, and the machining efficiency of the heat dissipation plate can be effectively improved.
Owner:TIANTAI COUNTY YINTONG ALUMINUM CO LTD
Transformer oil conservator oil level measuring device
The invention relates to the technical field of transformer oil level measurement, and discloses a transformer oil conservator oil level measuring device which comprises an insulating rod and further comprises an installation disc installed at the top end of the insulating rod, an elastically telescopic sonar probe is installed in the center of the installation disc, and the telescopic direction of the sonar probe is parallel to the axis of the installation disc; and the monitoring instrument is arranged on the insulating rod and is used for monitoring and displaying the signal received by the sonar probe. The sonar probe can be tightly attached to the bottom of the oil conservator through the arrangement that the sonar probe can elastically stretch out and draw back, and the sonar probe can be prevented from deviating or fluctuating due to the influence of manual operation in the working process in cooperation with stable adsorption and fixation of the mounting disc; the situation that the sensor probe is not stable enough when transmitting or receiving the reflected waves, and consequently transmitting and receiving paths of the sound waves are changed is prevented, and the measurement precision is further improved.
Owner:ZHANGZHOU POWER SUPPLY COMPANY STATE GRID FUJIANELECTRIC POWER +1
Coated diaphragm and preparation method thereof
PendingCN119447697AImprove adhesionAchieve coatingCell component detailsLi-accumulatorsSide chainPhysical chemistry
The invention discloses a coated diaphragm and a preparation method thereof, and belongs to the technical field of lithium batteries. The coated diaphragm comprises a base diaphragm and a coating layer, the coating layer is attached to at least partial area of the base diaphragm, the porosity of the coated diaphragm is 52-80%, the pore diameter range of a pore structure of the coating layer is not less than 10nm, and the component of the coating layer comprises a polymer with a side chain substituted by an anionic side group; the pore structure of the coating layer has relatively appropriate pore diameter and porosity, ions can be well transmitted in the pore structure, the risks of lithium electroplating and dendritic crystal growth can be reduced, and the purpose of solving the problem that lithium dendrites are easy to generate in the current coating diaphragm is achieved.
Owner:SHENZHEN SENIOR TECH MATERIAL
Earthquake simulation platform monitoring device for engineering structure
ActiveCN119618531Aeasy to operateheavy loadVibration testingArchitectural engineeringEarthquake simulation
The invention relates to the technical field of earthquake simulation platforms, and discloses an earthquake simulation platform monitoring device for an engineering structure, and the device comprises an earthquake simulation platform which is installed on the top surface of a bottom plate; the mounting frame is fixed on the bottom plate, and the mounting frame is of a U-shaped structure; the electric hoist is mounted at the top of the mounting frame; the counterweight structure is arranged above the earthquake simulation platform, the counterweight structure comprises a counterweight water tank, the top surface of the counterweight water tank is connected with four branch slings, and the driving end of the electric hoist is connected with a main sling. According to the load adjusting mode, a traditional weight stack adjusting method is abandoned, the adjusting mode replaces the traditional weight stack adjusting method, operation is simpler, the load adjusting requirement can be quickly responded, and the working efficiency and flexibility are improved.
Owner:SOUTHEAST UNIV
Foot and mouth disease virus effective antigen inactivation protective agent and application thereof
PendingCN119662568Aprotection stabilityImprove immune activityInactivation/attenuationMicroorganism based processesDiseaseImmunocompetence
The invention discloses a foot and mouth disease virus effective antigen inactivation protective agent and application thereof. The protective agent is prepared from the following components in percentage by mass: 0.05 to 20 percent of a structure curing agent, 0.01 to 5 percent of an ion regulator, 0.005 to 1.0 percent of an antioxidant and the balance of water, the protective agent does not influence the inactivation effect in the process of acting on nucleic acid, inhibits folding and unfolding of a protein physical structure, prevents change of a protein space physical structure, improves free energy of protein denaturation, enhances the stability of a virus space physical structure, maintains the integrity of virions, and has a good application prospect. The effects of preserving the immune biological activity of the protein and reducing the loss of viruses in the inactivation process are achieved, so that the foot-and-mouth disease inactivation antigen liquid with high immunogenicity is obtained. Compared with the conventional antigen protection method, the method has the advantages that the virus is protected before the inactivation process is implemented, the production process is advanced, the stability of the effective antigen can be protected to the greatest extent, and support is provided for obtaining an effective antigen solution with high immunocompetence.
Owner:CHINA ANIMAL HUSBANDRY IND
Positioning and guiding device of woodworking machining center
ActiveCN222609909Uavoid changehigh speedMulti-purpose machinesGauging meansLaser rangingNumerical control
The utility model relates to the technical field of woodworking mechanical numerical control equipment, in particular to a woodworking machining center positioning and guiding device which comprises two first fixing blocks, a second fixing block, a baffle, a camera assembly and a laser ranging assembly. Camera assemblies are arranged at the bottom ends of the middles of the two first fixing blocks, and a second fixing block is connected to the middle positions of the two first fixing blocks; the second fixing block is sleeved with a laser ranging assembly, the second fixing block is provided with a notch, the laser ranging assembly moves along the longitudinal axis of the second fixing block through the notch, a laser range finder on the laser ranging assembly can rotate left and right, and laser irradiation emitted by the laser range finder meets the width requirement of the conveying belt. When the wood is completely placed on the conveying belt, the camera assembly transmits shot data to the first control panel, and the first control panel receives and processes the data to obtain the size and the center position of the wood to be processed.
Owner:ANHUI DEJIN EDUCATION EQUIP MFG CO LTD
3D printing nozzle with adjustable nozzle size
The utility model discloses a 3D printing nozzle with adjustable nozzle size, which comprises a connecting pipe installed on a 3D printer, the bottom end of the connecting pipe is fixedly connected with a nozzle, the connecting pipe is internally and fixedly connected with a fixing ring, the circumferential inner wall of the connecting pipe is symmetrically provided with two sliding chutes, the two sliding chutes are internally and slidably connected with a sliding plate, and the sliding plate is fixedly connected with the nozzle. A protruding block is fixedly connected to the top of the sliding plate, a connecting assembly used for pulling the sliding plate to move upwards is arranged on the circumferential outer wall of the connecting pipe, and the connecting assembly comprises a plurality of fixing bases. By reducing the hollow area of the fixing ring, the flow of materials used for 3D printing can be reduced, flow adjustment of the 3D printing spray head is achieved, the situation that the flow of the spray head is changed due to movement of the sliding plate can be prevented, the stability of flow adjustment of the 3D printing spray head is improved, flow recovery of the 3D printing spray head can be facilitated, and the service life of the 3D printing spray head is prolonged. And the convenience of adjusting the 3D printing spray head is improved.
Owner:NANJING YUNQIYING INFORMATION TECH CO LTD
Furnace nose position automatic adjusting device based on three-dimensional detection
ActiveCN119509429ASolve production inefficienciesGuaranteed continuityUsing subsonic/sonic/ultrasonic vibration meansControl systemThree-dimensional space
The invention discloses a furnace nose position automatic adjusting device based on three-dimensional detection, and relates to the technical field of metallurgical equipment, the furnace nose position automatic adjusting device comprises a three-dimensional detection module, a composite execution mechanism, a connecting frame module and a control system module, the three-dimensional detection module is fixedly installed on the outer wall of a furnace nose; the three-dimensional detection module controls the system module through the wireless communication technology, the control system module is fixedly connected with the composite execution mechanism through a data line, and the outer wall of the composite execution mechanism is fixedly provided with the connecting frame module through bolts. The three-dimensional detection module comprises an ultrasonic probe and a linear module, the ultrasonic probe is movably installed on the front face of the outer wall of the linear module, and the linear module is connected with the composite execution mechanism through a data line. Through the three-dimensional detection module, the function of monitoring the furnace nose in real time and accurately obtaining three-dimensional space position information of the furnace nose is achieved, the problem that the production efficiency is low due to the fact that a traditional positioning detection mode is rough is solved, and production continuity and product quality stability are guaranteed.
Owner:HAIAN TIANYI INTELLIGENT CONTROL EQUIP CO LTD
Tour inspection device for wind generating set
PendingCN119611823AAcquisition speed is fastavoid changeStands/trestlesWind energy generationUncrewed vehicleTurbine
The invention discloses a wind generating set inspection device, and belongs to the technical field of unmanned aerial vehicle wind power inspection. A wind generating set inspection device comprises an unmanned aerial vehicle, a rotating mechanism arranged at the bottom of the unmanned aerial vehicle and a camera installed on the rotating mechanism, the rotating mechanism comprises a horizontal rotating mechanism connected with a fuselage of the unmanned aerial vehicle and a vertical rotating mechanism connected with the horizontal rotating mechanism, and the camera is installed on the vertical rotating mechanism. The horizontal rotating mechanism and the vertical rotating mechanism are pivoted through a transmission mechanism, so that the distance between the vertical rotating mechanism and the wind turbine generator in the flight direction of the unmanned aerial vehicle is kept consistent with that of the unmanned aerial vehicle; the method has the advantages that the shooting distance of the camera is convenient to fix, and the inspection image data acquisition speed is increased.
Owner:华电(宁夏)能源有限公司新能源分公司
Laser wire feeding device for laser additive manufacturing
ActiveCN111375917Bavoid changeavoid deflectionAdditive manufacturing apparatusIncreasing energy efficiency
The present invention relates to an optical wire feeding device for laser additive manufacturing, which comprises a sleeve, a wire feeding pipeline and an optical path unit, wherein the optical path unit comprises a laser connector, a beam splitter module, a reflector module, an optical path steering module and a focusing mirror module; the wire feeding pipeline comprises a wire feeding tube and a wire feeding nozzle, which successively passes through the optical path steering module and the focusing mirror module from top to bottom and avoids the reflector module to reflect the optical path to the optical path steering module, wherein the center of the focus formed by the focusing mirror module is located on the center line of the wire feeding nozzle, and the focus is located below the wire outlet end of the wire feeding nozzle and is arranged close to the wire outlet end. The present invention changes the optical path so that the optical path and the wire feeding pipeline do not interfere with each other, and the laser focus is colinear with the center of the wire feeding pipeline, and the wire is prevented from being deflected in the wire delivered from the wire feeding nozzle, and the optical mirror is cooled to prevent the optical mirror from deforming and changing the optical path, thereby ensuring that the light beam and the wire are coaxial when entering the molten pool, and improving the hot melt forming accuracy.
Owner:KUSN BAOJIN LASER TAILOR WELDED
Convenient operating mechanism for direct-in meter box cost control switch
The utility model relates to the field of meter boxes, and discloses a direct-in meter box cost control switch convenient operation mechanism, which comprises a meter box body, a switch body is arranged in the meter box body, the inner wall of the meter box body is fixedly connected with a rotating shaft, the outer wall of the rotating shaft is fixedly connected with a positioning block I, the outer wall of the rotating shaft is fixedly connected with a positioning block II, and the outer wall of the rotating shaft is fixedly connected with a positioning block II. A pressing block is fixedly connected to the outer wall of the first positioning block, a reset spring is arranged on the inner wall of the meter box body, and the outer wall of the reset spring is arranged on the inner wall of the pressing block. According to the utility model, the switch body is pulled outwards, then the first clamping block is driven by the switch body to move synchronously, and then the second clamping block is driven by the first clamping block to move synchronously, so that maintenance personnel can maintain or replace the switch body conveniently, meanwhile, large-scale disassembly and modification of the whole meter box body are avoided, the maintenance time is shortened, and the maintenance efficiency is improved. And inconvenience caused by power failure is reduced.
Owner:ZHEJIANG SHUNTANG ELECTRIC POWER TECH CO LTD
Opposite-emission photoelectric adjusting device of diaphragm one-time splitting machine
ActiveCN119460870Aavoid changequick alignmentMeasurement apparatus componentsMountingsMechanical engineeringPhotoelectric sensor
The invention discloses a diaphragm primary splitting machine correlation photoelectric adjusting device, and belongs to the technical field of correlation photoelectric adjusting devices, the diaphragm primary splitting machine correlation photoelectric adjusting device comprises a mounting plate and a boss arranged on one side of the mounting plate, an adjusting plate used for mounting a correlation photoelectric sensor is arranged on one side of the boss, and a positioning ring is slidably arranged on the side, close to the boss, of the adjusting plate; according to the device, the position of the adjusting plate can be finely adjusted in different directions, and the adjusting plate can be locked with the boss after each fine adjustment, so that the position of the adjusting plate is prevented from being changed, the whole adjusting process is continuous and stable, correlation photoelectric sensors at the two ends of the winding drum can be quickly aligned, and the detection accuracy is improved. The device is compact in structure, and a worker can complete micro-distance adjustment of the adjusting plate in different directions through an internal hexagonal wrench.
Owner:合肥东昇智能装备股份有限公司
Composite modification film, lithium metal negative electrode and preparation method of lithium metal negative electrode
PendingCN122091589AHigh mechanical strengthgood flexibilityCell electrodesElectrolytic agentSolid state electrolyte
The invention discloses a composite modification film, a lithium metal negative electrode and a preparation method of the lithium metal negative electrode. The composite modified film comprises an organic polymer solid electrolyte, an inorganic solid electrolyte and a film-forming agent, and the mass ratio of the organic polymer solid electrolyte to the inorganic solid electrolyte to the film-forming agent is (10%-35%): (10%-35%): (30%-80%). The composite modified film effectively buffers cyclic stress, prevents early mechanical failure of the protective layer, and realizes mechanical durability of the interface protective layer; the immobilized film-forming agent can be slowly released, so that the continuous and stable repair of SEI is realized, the dynamic repair capability of the whole life cycle is provided, and the efficient cycle life of the battery is greatly prolonged; and the electrolyte does not need to depend on a high-concentration liquid additive, dramatic change of electrolyte components in circulation is avoided, the overall chemical stability of the battery is improved, and the stability of an electrolyte system is guaranteed.
Owner:JIANGSU ZENIO NEW ENERGY BATTERY TECH CO LTD
Belt pulley tensioning device for embroidery frame of embroidery machine
The utility model relates to embroidery machine technical field, specifically discloses a kind of belt pulley tensioner of embroidery frame of embroidery machine, including base, recess is set in the top of base, and tensioning assembly is arranged on base, and tensioning assembly includes screw rod, and the inner cavity of recess is sleeved in screw rod, and one end of screw rod is provided with turntable, and the surface of screw rod is connected with screw sleeve with screw thread, the surface of screw sleeve is connected with screw sleeve, the top of screw sleeve is fixedly connected with recessed plate, and the inner cavity of recessed plate is rotatably connected with belt pulley, and the both ends of recessed plate bottom are equipped with guide block. Tensioning adjustment is realized by the thread cooperation of screw rod and screw sleeve, and the sliding limiting structure of guide block and guide groove is combined, so that adjustment can be quickly completed without the aid of external tools, and the position of turntable is locked by the cooperation of clamping rod and clamping hole in positioning assembly, effectively prevent the change of tensioning degree due to vibration or long-term use, with the advantages of convenient operation, high adjustment efficiency and good tensioning stability.
Owner:FUJIAN YONGXIN NUMERICAL CONTROL TECH
A parameter extraction modeling method suitable for discrete devices after dicing
ActiveCN114792081Bavoid changeImprove design efficiencyComputer aided designSpecial data processing applications
The present invention relates to a parameter extraction modeling method suitable for discrete devices after dicing, comprising: connecting a left pad, a device to be tested after dicing and a right pad into a GSG on-chip test structure by gold wire bonding; measuring and obtaining the capacitive compensation parameters of the left and right compensation networks caused by the left and right pads; determining the inductive compensation parameters of the left and right compensation networks caused by the gold wire wires of the gold wire bonding based on the through distances between the left and right pads and the device to be tested respectively; determining the S parameters of the left and right compensation networks according to the inductive compensation parameters and capacitive compensation parameters of the left and right compensation networks; adding the S parameters of the left and right compensation networks to the input and output ends of the test calibration compensation data of the vector network analyzer respectively, so as to remove the wiring influence of the GSG on-chip test structure. The present invention can quickly and effectively obtain an accurate large signal model, avoiding the model changes caused by the unevenness between the chips of the device process.
Owner:INST OF MICROELECTRONICS CHINESE ACAD OF SCI LTD +1
Device and method for accurately regulating and controlling forming outer diameter of borosilicate glass tube
PendingCN119567073AUniform wall thicknessevenly distributedPolishing machinesGrinding drivesHeat energyWorkbench
The invention relates to the technical field of glass tube machining, in particular to a borosilicate glass tube forming outer diameter precise regulation and control device and a regulation and control method thereof.The borosilicate glass tube forming outer diameter precise regulation and control device comprises a polishing machine body, a polishing assembly, a gas collection assembly and a heat energy conversion assembly, and a supporting piece is arranged on an output shaft of the polishing machine body; a first grinding piece is arranged on one side of the workbench, a second grinding piece is arranged on the other side of the workbench, the gas collection assembly comprises an exhaust groove and a gas suction groove, and the heat energy conversion assembly comprises a heat transfer piece. According to the device, heat of the borosilicate glass tube can be absorbed through the heat energy conversion assembly, so that the first grinding piece and the second grinding piece grind the borosilicate glass tube after the glass tube is cooled to a certain temperature, and the problems that the wall thickness distribution is uneven and the outer wall is not smooth in the standing and cooling process of the borosilicate glass tube are solved.
Owner:JIYUAN JINXIN IND CO LTD
A pipe bending welding device for pipe fitting production
ActiveCN119159322Bavoid changeEasy to weldWelding/cutting auxillary devicesAuxillary welding devicesHydraulic cylinderPipe fitting
The present invention provides a pipe bending welding device for pipe fitting production, and relates to the technical field of pipe fitting welding. It comprises a mounting base, the mounting base is mounted on a processing lathe, the top of the mounting base is slidably connected to a limit plate, the limit plate is used to fix the position of the pipe bending, the mounting base is rotatably connected to two symmetrically arranged placement columns, the placement columns are used to place straight pipes, the top of the mounting base is fixedly connected to a fixing frame, the fixing frame is fixedly connected to a hydraulic cylinder, the hydraulic cylinder is located directly above the placement column on one side, and an auxiliary component is fixedly connected below the hydraulic cylinder. By arranging a clamping component and an auxiliary component, the present invention can not only improve the efficiency of welding when the operator is welding the pipe bending, but also can weld pipe bendings of different diameters, thereby reducing the time for adjusting the equipment.
Owner:LONGKOU XINTING METAL TECHNOLOGY CO LTD
Pipeline supporting frame convenient to adjust
Owner:山西七建集团有限公司
Pixel circuit and image sensor
The invention relates to a pixel circuit and an image sensor. A pixel circuit including a transistor, a barrier layer, and an output circuit is disclosed. The transistor includes a first doped region and a second doped region disposed on opposite sides of a channel of the transistor proximate a first surface of a semiconductor substrate such that photocarriers generated inside the semiconductor substrate in response to incident light flow into one of the first and second doped regions. The barrier layer is disposed between the other of the first and second doped regions and a second surface of the semiconductor substrate opposite the first surface. The barrier layer is configured to block the photocarriers from directly flowing into the other of the first doped region and the second doped region. The output circuit outputs an image signal according to a voltage signal output from the transistor.
Owner:OMNIVISION TECHNOLOGIES INC
Batteries and vehicles
The application relates to a battery and a vehicle. The battery comprises a box body, a plurality of battery cell units and a busbar. The box body comprises a mounting space, and the box body is provided with a protruding piece; the plurality of battery cell units are arranged in the mounting space, and each of the battery cell units is provided with a wrapped pole column, and the plurality of wrapped pole columns are arranged on the same side; the busbar is arranged in connection with the plurality of wrapped pole columns, and the busbar comprises a positioning piece which is fixedly arranged with the protruding piece. Due to the positioning piece and the protruding piece, the operator can better determine the welding position, the alignment is facilitated, and the deviation caused by manual positioning can be avoided. In the welding process, the relative position between the busbar and the plurality of wrapped pole columns is difficult to change due to the fixation between the positioning piece and the protruding piece, and thus the position of the busbar can be prevented from being changed due to the accidental touch of the operator.
Owner:ZHEJIANG FARIZON ZHIXIN TECHNOLOGY CO LTD +3
Network construction power distribution switch controller and control system
ActiveCN222654821Uavoid changelow costEmergency protective arrangement detailsEmergency protective arrangements for automatic disconnectionNew energyPower usage
The utility model discloses a network construction power distribution switch controller and a control system, relates to the technical field of power distribution network automation, and mainly aims to solve the problem that the existing anti-islanding circuit breaker fails when the new energy output capacity is close to or greater than a load. The network construction power distribution switch controller comprises an electric signal detection assembly, a central control assembly and a switch opening and closing execution assembly. The central control assembly is electrically connected with the electric signal detection assembly and the switch opening and closing execution assembly. The switch opening and closing execution assembly is electrically connected with a control contact of the low-voltage distribution circuit breaker. The electric signal detection assembly is used for collecting electric signals of a low-voltage distribution power supply side. And the central control assembly is used for controlling the switch opening and closing execution assembly to drive the low-voltage power distribution circuit breaker to be opened under the condition that the electric signal flows from the electricity load to the power supply side so as to cut off the connection between the low-voltage power distribution device and the new energy inverter. The method is used for controlling a power distribution switch in a new energy grid-connected power grid.
Owner:SHANGHAI CHENGYI ELECTRIC CO LTD
Exhaust gas treatment device based on synergistic effect of low-temperature plasma and catalyst
This invention relates to the technical field of atmospheric control and air treatment, and discloses a waste gas treatment device based on the synergistic effect of low-temperature plasma and catalyst. The device includes a waste gas treatment unit, which sequentially passes waste gas through a plasma ionization zone and a catalytic zone. The plasma ionization zone ionizes the waste gas, while the catalytic zone further oxidizes or decomposes any incompletely degraded intermediate products after passing through the plasma zone. An outlet end is provided on the waste gas treatment unit, and an outlet unit is located at the outlet end. A film-breaking unit, during the waste gas treatment process, drives a permanent magnet ball to rotate, causing the permanent magnet ball to intermittently approach or move away from a spring, thus causing the spring to vibrate and preventing the formation of a gas film on the inner wall of the inlet end, thereby avoiding changes in the inlet end pipe diameter.
Owner:NANJING ZHEFANG ENVIRONMENTAL TECHNOLOGY CO LTD
Axial rotation device for a circulation fan
This utility model relates to an axial rotation device for a circulating fan. It includes a fan assembly, a rotating assembly, and a bracket. The fan assembly is rotatably connected to the bracket via the rotating assembly. The fan assembly consists of a fan head and a rear cover. The rear cover is detachably connected to the fan head and forms a clamping groove at its lower end. The rotating assembly includes a rotating component, a fixed component, and a motor. The rotating component is rotatably connected to the upper end of the fixed component. The motor is disposed within the fixed component, and its output end drives the rotating component to rotate. The rotating component is connected within the clamping groove. The lower end of the fixed component is connected to the bracket. This utility model, by separating the rotating component and the fixed component, places the structure on the bracket instead of at the fan head, thus achieving a more stable effect during axial rotation.
Owner:GUANG DONG WAN JIA DA JIA YONG DIAN QI YOU XIAN GONG SI
A biochar-based ion-imprinted polymer material and its preparation method and application
ActiveCN116693757BImprove efficiencyavoid changeOther chemical processesContaminated soil reclamation
A biochar-based ion-imprinted polymer material and its preparation method and application belong to the field of material preparation. The preparation method comprises: reacting a mixed solution containing a template and 4-vinylpyridine I to obtain a reaction system I, wherein the template is a metalloid compound or a heavy metal compound; adding biochar, a cross-linking agent, and an initiator to the reaction system I to carry out reaction II, washing, and drying to obtain a biochar-based ion-imprinted polymer material. When the material is used as a fixation / stabilization material for arsenic-containing soil remediation, it can be evenly distributed in the soil without causing agglomeration problems, can stably exist in a complex soil environment, has a good selective adsorption effect on free arsenic in the soil, and has a good short-term fixation effect. In addition, the material is a neutral material and has almost no effect on soil pH.
Owner:BEIJING UNIV OF CHEM TECH
Building engineering sample automatic detection system and method based on Internet of Things transmission
InactiveCN119492824AUnable to confirm uniquenessImprove detection efficiencyComponent separationSensing by electromagnetic radiationData storeMobile phone
The invention belongs to the technical field of Internet of Things, and particularly relates to an Internet of Things transmission-based building engineering sample automatic detection system, which comprises a sample detector, a monitoring base station, a mobile terminal, an NFC chip and a mobile phone terminal, the sample detector comprises a microprocessor, a Zigbee communication module, a data storage module, a sample pretreatment instrument and a chromatographic instrument, the sample pretreatment instrument is connected with the chromatographic instrument, and the chromatographic instrument is connected with the microprocessor; the Zigbee communication module is in bidirectional connection with the microprocessor, and the data storage module is connected with the microprocessor; in various environments of a construction site, a unit or an individual needs to provide a detection sample on site, the authenticity and conformity of the sample cannot be responsible for, and under general conditions, the means is to write the sample by hand, mark the sample or fill in specific sample information through specific equipment which cannot be networked, print a two-dimensional code and paste the two-dimensional code on the sample; samples are easy to stain and fall off in the carrying process, and the uniqueness of the samples cannot be confirmed.
Owner:JIANGXI CONSTR TECH PROMOTION CENT
Intelligent dry goods preservation cabinet
The application provides a kind of intelligent dry goods storage cabinet, including shell assembly, sterilization assembly, air circulation assembly, vacuum assembly and control assembly;Wherein, shell assembly includes the cabinet body with storage area, cabinet door;Sterilization assembly is located in the cabinet body;Air circulation assembly includes air inlet, fan, pipeline, compressor, the pipeline is communicated the air inlet, the storage area and the compressor, the compressor and the fan cooperate to realize the heat exchange of the storage area with outside world;Vacuum assembly includes vacuum pump and pipeline, the other end of the pipeline is communicated the storage area, to be used for by the vacuum pump so that the storage area forms vacuum;Control assembly is electrically connected with the sterilization assembly, the air circulation assembly and the vacuum assembly.The intelligent dry goods storage cabinet provided in the application realizes adjusting storage environment by vacuum assembly and air circulation assembly to prolong the storage time of dry goods and ensure the quality of dry goods, and reduce mildew and insect pests.
Owner:SHENZHEN DELESHI TRADING CO LTD
Protection circuit, vehicle-mounted component and vehicle
ActiveCN222655173UImprove communication efficiencyavoid damageData switching current supplyIn vehicleHemt circuits
The utility model discloses a protection circuit, a vehicle-mounted component and a vehicle, the protection circuit comprises at least two parts, each part comprises an interface chip, a power supply port of the interface chip is used for connecting a power supply, and a communication port of the interface chip is connected with at least one of the other parts to establish at least one communication network; the first end of the voltage dividing branch is connected with the power supply port of the interface chip, and the second end of the voltage dividing branch is grounded; and the microprocessor is connected with the detection node of the voltage division branch circuit and is used for detecting the voltage division value provided by the voltage division branch circuit, determining the power-on state of each part in the protection circuit based on the voltage division value and selecting the power-on parts at the two ends of the communication network for communication. Through the above mode, the interface chip can be protected, the communication efficiency among parts is improved, and the production cost is reduced.
Owner:SHENZHEN DEEPROUTE AI CO LTD