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118results about How to "Avoid threats" patented technology
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Tunnel flooding abnormal event detection method based on YOLO
PendingCN119445433Aavoid interferenceImprove detection accuracyClimate change adaptationCharacter and pattern recognitionPattern recognitionData set
The invention discloses a tunnel waterlogging abnormal event detection method based on YOLO, and the method comprises the steps: firstly collecting a waterlogging video generated in a tunnel through a camera, carrying out the random picture interception of the video, selecting the data of a scene through which a vehicle passes, carrying out the marking, and building a data set; the method comprises the following steps: establishing a data set, then introducing a triple attention mechanism on the basis of a convolution module attention mechanism of YOLOv5 to improve the attention capability of the network on important features, training on a YOLOv5 model by using the established data set to obtain a target detection model, and detecting water accumulation and flooding events occurring in a tunnel based on the target detection model.
Owner:NANJING TUNNEL & BRIDGE ADMINISTRATION CO LTD
Fast batch switching authentication method for predictability and aggregation promise proof
PendingCN119628836Areduce calculationReduce communication overheadKey distribution for secure communicationPublic key for secure communicationHash functionTimestamp
The invention discloses a rapid batch switching authentication method for predictability and aggregation promise proof, which realizes batch authentication of a plurality of user terminals by generating system parameters and secret keys through a trust mechanism and combining predictability promise and aggregation signature technologies. In the authentication process, the edge base station to be switched exchanges with the current communication edge base station through an encrypted message, verification information such as a pre-authentication certificate and a signature is generated through the user terminal, and identity authentication is completed step by step. The method comprises the following specific steps: a trust mechanism generates a private key, a public key, a pseudo identity and an expiration timestamp for each device; through multiple rounds of message exchange, the edge base station and the user terminal perform identity verification by using a shared key and a hash function; and finally carrying out efficient verification on a plurality of users through batch signature and aggregation commitment. According to the method, on the basis of ensuring the security, the speed of switching the authentication process is greatly improved, and the method is suitable for a large-scale network environment, especially in edge computing and mobile communication networks.
Owner:SHANGHAI MARITIME UNIVERSITY +1
Self-destruction control method and system for tethered airship
PendingCN119590601Aavoid threatsprevent leakageLighter-than-air aircraftElectrical batteryGas pressure transducer
The invention relates to a tethered airship self-destruction control method which specifically comprises an airborne control core and a self-destruction standby system so as to ensure that a self-destruction task can be effectively executed under different fault conditions. The airborne control core judges whether the airship exceeds a safety range or not through the GPS module, or receives a remote self-destruction instruction through the wireless communication module to trigger a self-destruction program. The self-destruction process comprises the steps that the valve push rod driving circuit rapidly deflates, the electric heating wire driving circuit burns through the ball body, the lithium battery burning explosion trigger circuit triggers battery burning explosion, and thorough damage is ensured. If the main system fails, the standby control module supplies power through a standby battery, takes over a self-destruction task, keeps communication with the ground, and triggers the parachute to release by utilizing a time delay mechanism or an air pressure sensor when the height sensor fails, so that the landing safety is guaranteed. And the main control program performs byte-by-byte deletion through a bootloader program in a self-destruction process, so that data leakage is prevented.
Owner:HENAN ZHONGYUAN AEROSPACE INNOVATION TECH CO LTD
Flexible flapping wing type bionic water pumping device for improving water power
PendingCN119435477Aachieve friendlyincrease hydropowerPumpsNon-positive displacement fluid enginesFlapping wingReciprocating motion
A flexible flapping wing type bionic water pumping device for improving water power comprises a water pumping execution mechanism and a flow channel, the flow channel is fixed to the lower portion of a rack of the water pumping execution mechanism, and the water pumping execution mechanism comprises the rack, a linear motion module, a swing motion module, a driving module and flexible flapping wings. The linear motion module and the swing motion module are symmetrically installed on the two sides of the machine frame in the middle and can move synchronously, the driving module is installed on the upper portion of the machine frame in the middle, and the swing motion module is fixed to a linear bearing sliding base of the linear motion module so that the swing motion module can do linear reciprocating motion on a guide shaft along with the linear bearing sliding base. The flexible flapping wing is fastened with a driven shaft of the swinging motion module, and the flexible flapping wing is driven by the driven shaft to perform reciprocating swinging motion. The water body can be propelled efficiently, high-efficiency large-flow water pumping can be achieved in a shallow water area under the low-lift working condition, meanwhile, threat to overflowing organisms in the water body can be avoided, and biological friendliness is achieved.
Owner:ZHEJIANG UNIV OF TECH
Hydrogen evacuating and desorbing device
ActiveCN222293615Uhigh densityavoid threatsHydrogen separation using solid contactMechanical engineeringSilicone
The utility model discloses a hydrogen evacuating and desorbing device, which relates to the technical field of hydrogen evacuating and desorbing, and comprises a box body and a cover plate, the top of the box body is movably connected with the cover plate, the cover plate is internally provided with a through hole, the inside of the through hole is fixedly connected with a sealing ring, and the top of the cover plate is fixedly connected with an anti-backfire mechanism. Sealing silica gel is fixedly connected into the cover plate, the two sets of penetrating holes are symmetrically distributed, the outer diameter of the sealing ring is consistent with that of the sealing pipe, and the sealing ring prevents oxygen from entering the box body. Compared with an existing common hydrogen evacuating and desorbing device, the hydrogen evacuating and desorbing device has the advantages that hydrogen and oxygen are conveyed to different desorbing bottles through different sealing pipes and then output through the output pipe, reaction between the hydrogen and the oxygen is avoided, the device is simple in structure, workers cannot operate the device in dangerous places, accidents are prevented from occurring and spreading, and the device is suitable for popularization and application. The density of the sealing ring is large, gas leakage is avoided, and the sealing performance of oxygen and hydrogen in the transportation process is guaranteed.
Owner:QIDONG CORLAN EQUIP CO LTD
Battery system capable of being separated from vehicle body, control method of battery system and new energy vehicle
PendingCN119659336Aensure safetyReduced risk of heat spreadElectric devicesPropulsion by batteries/cellsElectrical batteryNew energy
The invention discloses a battery system capable of being separated from a vehicle body, a control method of the battery system and a new energy vehicle, the battery system comprises a high-voltage battery module, a low-voltage battery module, a DCDC module, an unlocking mechanism, a driving module and a BMS system, the DCDC module is electrically connected with the low-voltage battery module and the high-voltage battery module, the low-voltage battery module is electrically connected with the unlocking mechanism, and the driving module is electrically connected with the BMS system. The high-voltage battery module is electrically connected with the driving module, and the BMS system is electrically connected with the low-voltage battery module, the DCDC module, the unlocking mechanism, the driving module and the high-voltage battery module. When dangerous situations such as battery thermal runaway occur, the low-voltage battery can cut off connection between a high-voltage battery power source and a vehicle body through the unlocking mechanism, meanwhile, electric power is provided for separation of the high-voltage battery, the risk of heat spreading is greatly reduced, the safety of the vehicle and personnel is guaranteed, in addition, the low-voltage battery can further provide electric power for the driving module, and the safety of the vehicle is improved. And the vehicle keeps power after the high-voltage battery is cut off, so that the risk is further reduced.
Owner:WANXIANG 123 CO LTD
System for coping with vehicle spontaneous combustion in storage type mechanical garage
ActiveCN222286298Uavoid threatsreduce economic lossFire rescueBoring toolsSpontaneous combustionTemperature control
The utility model relates to the technical field of warehouse-type garages, and discloses a system for coping with vehicle spontaneous combustion in a warehouse-type mechanical garage, which comprises a warehouse-type mechanical garage and a vehicle, a plurality of rows of roadways for storing the vehicle are arranged in the warehouse-type mechanical garage, a placing table is arranged on the roadways, the vehicle is placed on the top of the placing table, and the warehouse-type mechanical garage is internally provided with the warehouse-type mechanical garage. And a plurality of temperature control probes capable of monitoring the temperature of the vehicle are embedded in the top of the placement table. According to the system and method for coping with vehicle spontaneous combustion in the warehouse-type mechanical garage, a fireproof isolation room and a fire-fighting roller shutter are arranged in the warehouse-type mechanical garage, a temperature control probe is arranged on a vehicle placement table, and the temperature of a vehicle is monitored in real time through the temperature control probe; once the temperature of the vehicle exceeds a temperature threshold value set by the system or the temperature change range exceeds a value set by the system, the control system controls the carrying vehicle to carry the problem vehicle to the fireproof isolation room for storage.
Owner:SHENZHEN SHUNYU TECHNOLOGY CO LTD
Prediction system based on traffic management and prediction method thereof
InactiveCN119399962Aimprove accuracyImprove reliabilityEnsemble learningDetection of traffic movementSimulationTraffic flow
The invention relates to the technical field of urban traffic management, in particular to a prediction system and method based on traffic management, and the system comprises a data collection module, a data preprocessing module, a feature extraction module, a model construction module, a prediction analysis module and a management strategy making module. A sensor network is deployed at a traffic road section and a road intersection, traffic flow data under rain and snow weather conditions and during holidays and festivals are collected in real time, and then traffic flow prediction is performed through data preprocessing, feature extraction and a traffic flow prediction model based on a random forest algorithm. And the traffic flow density, the vehicle speed, the traffic bottleneck position and the potential congestion point can be accurately predicted. And based on the prediction result, a corresponding traffic management strategy is formulated and implemented, so that traffic congestion is effectively relieved, the traffic passing efficiency is improved, and the traffic safety is ensured. According to the invention, dynamic, accurate and intelligent traffic management can be realized, and the system is especially suitable for high-risk time periods such as special weather conditions and holidays and festivals.
Owner:DONGYING DONGWANG INTERNET INFORMATION TECH CO LTD
Close-distance coal seam roadway roof supporting device
ActiveCN222296275Uachieve supportRealize regulationMine roof supportsSupporting systemPlate pressure
The utility model discloses a close-distance coal seam roadway roof supporting device which comprises a bottom plate, a cross beam, two side protection plates, two telescopic assemblies, a metal net, an anchor rod and a pressure monitoring assembly. A plurality of fixing parts are mounted at the bottom of the bottom plate; the bottom of the cross beam is detachably connected with a plurality of hydraulic lifting assemblies, and the bottoms of the hydraulic lifting assemblies are fixedly connected with the bottom plate. The two side protection plates are rotationally connected to the two ends of the cross beams correspondingly. The two telescopic assemblies are hinged to the cross beam through supports respectively, and the telescopic ends of the two telescopic assemblies are hinged to the bottom faces of the protection plates on the two sides respectively. The metal net is mounted at the tops of the cross beams; a plurality of anchor rods are arranged, and the pressure monitoring assembly is mounted on the metal net. Self-adaptive supporting and adjusting of the roadway top plate and the side protection plate can be achieved, the stability of a supporting system is improved, gangue is blocked, and the safety of operators is protected; the top plate pressure can be monitored in real time, the overpressure risk can be early warned, automatic operation is achieved, manual operation errors are reduced, and working efficiency and safety are improved.
Owner:SHANXI SHUOZHOU PINGLU DISTRICT MAOHUA BAILU COAL IND CO LTD
Safety detection and control method for CPS to resist FDIA
ActiveCN119254456Aincrease flexibilityimprove accuracyBiological modelsSecuring communicationAlgorithmAttack
The invention discloses a safety detection and control method for a CPS to resist FDIA, and relates to the technical field of deep reinforcement learning and safety control, and the method comprises the steps: initializing a CPS environment; acquiring a CPS state; calculating a local difference by using the local measurement value and the local estimation value; performing threshold analysis through deep reinforcement learning based on an improved PPO algorithm, and comparing a dynamic threshold with the calculated local difference to determine whether the CPS is attacked; and an event-triggered model prediction control method is adopted for intervention so as to resist attack of the FDIA on the CPS. According to the invention, the detection strategy can be automatically adjusted according to the environment change and historical data, so as to adapt to various different attack modes; the robustness of the DRL algorithm is enhanced, and the safety and reliability of the system are improved; and the system can be quickly started after FDIA is detected, and the system is predicted and adjusted, so that the stability of the system is quickly recovered.
Owner:SICHUAN UNIV
Sweet potato soilless tuber production system and method
ActiveCN117099668BImprove the level ofavoid threatsAgriculture gas emission reductionCultivating equipmentsEngineeringNutrient
The application discloses a sweet potato soilless tuberization cultivation system and method. In view of the fact that existing sweet potato production cannot get rid of solid substrates such as soil, and is restricted by upgrading of cultivation technology and product value positioning, the sweet potato soilless tuberization cultivation technology of the application adjusts the number and single weight of tubers by controlling environmental air pressure conditions. The cultivation system comprises a culture box and a regulation system, the culture box is divided into a nutrient bin and a tuberization bin, the tuberization bin is provided with seedling holes and has an airtight structure, and the regulation system monitors and regulates the culture conditions in the culture box. The culture method is a stage regulation culture technology, and the continuous long-term tuberization production can be realized through the tuberization period regulation culture. The application solves the key technical problem that all existing soilless cultivation technologies of sweet potato need to use solid substrates to press vines to induce tuber enlargement to realize tuberization, is a completely soilless cultivation technology of sweet potato, introduces the sweet potato cultivation technology into a new stage, and provides a scientific basis and production control means for stable small-scale sweet potato production.
Owner:CHONGQING NORMAL UNIVERSITY +3
Splicing structure of splicing type inflatable castle
The utility model discloses a splicing structure of a splicing type inflatable castle, which comprises a first fixed panel, the first fixed panel is fixedly connected with the surface of the inflatable castle, the surface of the first fixed panel is provided with a rotating groove, the inside of the rotating groove is in threaded connection with a threaded rod, and the other end of the threaded rod is fixedly connected with a second fixed panel. The device is suitable for assisting in fixing the splicing structure; the threaded rod, the electric telescopic rod, the pushing rod, the pushing groove, the rotating shaft, the limiting shaft, the hook-and-loop fastener rough surface and the hook-and-loop fastener hook surface are used in cooperation, so that the device can conduct splicing work more stably, the device adopts a buckle limiting and hook-and-loop fastener splicing mode, the splicing area between splicing devices is increased, and the splicing efficiency is improved. And meanwhile, multiple splicing modes are adopted for superposition, so that the splicing stability of the device is improved, the situation that spliced objects are loosened and fall due to the fact that children play and collide for multiple times is avoided as much as possible, and the stability and practicability of the device are improved.
Owner:XIANGCHENG DADI AMUSEMENT EQUIPMENT CO LTD
Multistage breakdown circuit for power device and control method thereof
PendingCN119093716AAchieve short circuit breakdownSimple and reliable control methodEmergency protective circuit arrangementsPower conversion systemsControl powerHemt circuits
The invention provides a multi-stage breakdown circuit for a power device and a control method of the multi-stage breakdown circuit, and relates to the technical field of power conversion. The multi-stage breakdown circuit comprises a positive power supply, a monostable switch, a normally-open switch, a first resistor and n transient voltage suppression diodes, the cathode of the first transient voltage suppression diode is connected with the collector of the power device, and a normally-closed contact of the monostable switch is connected in parallel to the two ends of the cathode of the mth transient voltage suppression diode and the anode of the nth transient voltage suppression diode; and the anode of the first diode is connected with the anode of the nth transient voltage suppression diode, and the cathode of the zth diode is connected with the grid electrode of the power device. The multi-stage breakdown circuit is simple in structure, the control method is simple and reliable, if the control power supply works abnormally, the action voltage of the transient voltage suppression diode connected in series is reduced through the monostable switch, a power device is forced to enter an active working area as soon as possible for breakdown short circuit, and the passive breakdown reliability is improved.
Owner:NR ENG CO LTD +1
Wooden door unlocking device
The utility model relates to the technical field of wooden door unlocking, and discloses a wooden door unlocking device which comprises an unlocking machine body, and the unlocking machine body comprises an operation table. According to the wooden door unlocking device, a servo motor is started, the servo motor works to drive a lead screw to rotate, then a third thread sleeve is driven to move downwards under the action of threads, then a movable plate is driven to move, then a top plate is driven to move, then a handrail sleeve is held by hand to move a movable rod, and then a circular plate is driven to rotate; then a second screw rod and a third screw rod are driven to rotate, a second screw sleeve and a fourth screw sleeve are driven to move left and right and front and back on the surfaces of the second screw rod and the third screw rod correspondingly, then a transverse plate and an adjusting plate are driven to move left and right and left and back, and then the effect of unlocking the wooden door is achieved; the problem that in the using process of an existing unlocking device, an operator needs to conduct manual lineation unlocking can be solved.
Owner:浙江杰洁家居有限公司
Lead-acid storage battery transfer device
ActiveCN222117942Ureduce exposureavoid security threatsMechanical conveyorsElectric machineryStructural engineering
The utility model provides a lead-acid storage battery transfer device which comprises a base, a steering motor, a steering rod, a mounting plate and a transfer assembly, and track wheels are arranged on the base; the transfer assembly is supported above the mounting plate through a mounting frame and comprises two fixing plates fixed to the two opposite sides of the mounting frame respectively, a receiving plate is hinged between the two fixing plates, one side of the receiving plate is rotationally connected into shaft holes of the two fixing plates, and arc-shaped grooves extending vertically are formed in the other sides of the two fixing plates. The other side of the receiving plate is inserted into the rotating shaft of the arc-shaped groove and is rotationally connected into the arc-shaped groove; the other side, corresponding to the receiving plate, of the mounting frame is provided with an overturning structure; the transfer assembly slides on the sliding rails through the rail wheels on the base to transfer the storage batteries, the labor cost is reduced, movement is stable in the transfer process, a steering motor drives a steering rod to rotate in the transfer process, and transfer among different working procedures is more convenient.
Owner:CHONGQING YUXIANG BATTERY CO LTD
A safety monitoring method and device for power terminal and power terminal
ActiveCN114997587BImprove detection accuracyGuaranteed accuracyData processing applicationsCircuit arrangementsAttackTrust level
The present invention discloses a safety monitoring method, device and power terminal for power terminals, wherein the method, by acquiring multi-dimensional power data of each power node; calculating the average value of the characteristic function value of each power node at different time points within a preset period; calculating the first trust evaluation index of each power node under attack; calculating the second trust evaluation index of each power node; calculating the final trust evaluation index of each power node based on the first trust evaluation index and the second trust evaluation index; and determining the safety status of each power node based on the final trust evaluation index. The present invention can ensure the accuracy of the trust evaluation index by calculating the trust value, and ultimately improve the detection accuracy of the safety status of each power node, and is subject to fewer restrictions, so that the safety monitoring of the power terminal has a better effect, avoids the threat of attackers, and ensures the security protection of information.
Owner:GLOBAL ENERGY INTERCONNECTION RES INST CO LTD
Corrosion observation method for molybdenum alloy microstructure
PendingCN119395014Aeasy to observeavoid threatsPreparing sample for investigationMaterial analysis by optical meansPotassium cyanideMicroscopic observation
The invention discloses a corrosion observation method for a molybdenum alloy microstructure. The method comprises the following steps: 1, machining a molybdenum alloy to form a microstructure observation plane, grinding, and washing off sand grains; 2, carrying out mechanical polishing until the surface of the microscopic structure observation plane is free of scratches and dragging; 3, immersing into an etchant solution to erode; and 4, observing a metallographic structure under a metallographic microscope. By controlling the components and proportion of the corrosion solution, the microstructure in the molybdenum alloy is clear, has obvious grain boundary and no obvious corrosion pit, is convenient for metallographic microscope observation, and achieves the same or similar corrosion effect on the molybdenum alloy on the premise of not using potassium ferricyanide; the situation that highly toxic potassium cyanide generated by decomposition in an existing corrosion solution harms personal safety is avoided, and the observation method is easy to operate, free of poison, free of special equipment and easy to popularize.
Owner:西安汉唐分析检测有限公司
State monitoring method and system based on power distribution network cable well lid
PendingCN119595041AImprove efficiencyImprove operation and maintenance efficiencyElectrical testingAnalysis dataCurrent sensor
The invention discloses a state monitoring method and system based on a power distribution network cable well lid, and the method comprises the steps: obtaining in-well environment data collected by all environment sensors disposed in a cable well and cable operation data collected by all current sensors, and carrying out the analysis of the environment state based on a pre-constructed environment state analysis model, analyzing the in-well environment data to obtain state analysis data of the cable well, performing comparative analysis on the cable operation data and a pre-acquired power distribution network operation instruction to generate abnormal analysis data reflecting a cable operation state result, and controlling the power distribution network terminal to perform power distribution network operation according to the state analysis data and the abnormal analysis data. And generating associated monitoring log information. The state information in the target cable well is monitored in real time, and the safety performance and the power supply reliability of a power distribution network are improved; information such as the inclination state of the well lid is monitored in real time, potential safety hazards can be found and processed in time when the state of the well lid is abnormal, and threats to vehicles and personnel are avoided.
Owner:STATE GRID ZHEJIANG ELECTRIC POWER CO LTD RUIAN POWER SUPPLY CO
Front electric sliding rail for intelligent adjustment of automobile seat
ActiveCN119636533AReduce cumbersome operationsImprove driving comfort performanceCharacter and pattern recognitionMovable seatsCar seatVehicle driving
The invention relates to the technical field of front electric sliding rails, and particularly discloses a front electric sliding rail for intelligent adjustment of an automobile seat. The system comprises a user driving experience judgment module, an experienced user entering distance confirmation module, an experienced user driving distance confirmation module, a non-experienced user entering distance confirmation module, a non-experienced user driving distance confirmation module and a database. The user who drives the target vehicle and the user who does not drive the target vehicle are classified and discussed, and the seat of the user who drives the target vehicle is adjusted according to the historical driving habits of the user and the vehicle driving scene, so that the tedious operation of manually adjusting the seat by the user is reduced, and the user who does not drive the target vehicle can conveniently adjust the seat. The front electric sliding rail is adjusted according to the body characteristics of the user, the angle between the instep and the pedal plane before driving and the knee bending angle, the response speed, accuracy and flexibility of operation are improved, and the driving safety is improved.
Owner:CHANGCHUN FAW ADIENT AUTOMOTIVE METAL PARTS CO LTD
Special-shaped combined glass fiber reinforced plastic cable support
ActiveCN222601901Uavoid damagereduce riskAdjusting/maintaining mechanical tensionSuspension arrangements for electric cablesGlass fiberStructural engineering
The utility model relates to the technical field of cable supports, and discloses a special-shaped combined glass fiber reinforced plastic cable support which comprises a fixing rod, the upper side and the lower side of the left end of the fixing rod are fixedly connected with a plurality of connecting plates, and the opposite ends of the connecting plates are rotationally connected with support plates. Mounting frames are fixedly connected to the left side and the right side of the top end of the support plate, clamping assemblies are arranged on the inner walls of the mounting frames, limiting grooves are formed in the upper side and the lower side of the front end of the fixing rod, clamping plates are arranged on the inner walls of the limiting grooves, first rotary knobs are fixedly connected to the inner walls of the clamping plates, and rotating assemblies are arranged at the front ends of the first rotary knobs. According to the utility model, cables with different sizes can be clamped, so that the cables are prevented from moving or swinging under the action of wind blowing, vibration or other external forces, the risk that the cables are damaged or destroyed is reduced, and the damage to the cables and the threat to the surrounding environment and personnel safety are avoided.
Owner:ELECS (XIAMEN) ELECTRIC CO LTD
Non-woven fabric for rapidly detecting carbamate pesticide residues and preparation method of non-woven fabric
PendingCN119619118ARapid responseadequate responseMaterial analysis by observing effect on chemical indicatorCholinesterasePesticide residue
The invention relates to a carbamate pesticide residue rapid detection non-woven fabric and a preparation method thereof, the carbamate pesticide residue rapid detection non-woven fabric comprises an outer package, the outer package is internally provided with an enzyme-containing cloth, a water-soluble film, an indigo-containing cloth, a color-developing cloth, a flash-evaporation non-woven fabric and a warm paste, and the enzyme-containing cloth, the water-soluble film, the indigo-containing cloth, the color-developing cloth, the flash-evaporation non-woven fabric and the warm paste are stacked and connected from top to bottom. The preparation method comprises the following steps: dipping pure cotton spunlaced non-woven fabric in a cholinesterase gelatin solution, taking out and airing to obtain enzyme-containing fabric, dipping the pure cotton spunlaced non-woven fabric in an indophenol acetate solution, taking out and airing to obtain indigo-containing fabric, and drying to obtain the indigo-containing fabric. The enzyme-containing cloth, the water-soluble film, the indigo-containing cloth, the color-developing cloth, the flash-evaporation-method non-woven cloth and the warm paste are mutually connected and put into an outer package, and finally the interior of the outer package is vacuumized to obtain the quick-test non-woven cloth. The method is simple and convenient to operate, high in detection speed and high in detection result accuracy.
Owner:WUHAN TEXTILE UNIV
Space compression chromatography experiment cabinet
InactiveCN119633912Aavoid wastingImprove stabilityEnclosures/chambersSupporting apparatusStructural engineeringProcess engineering
The invention relates to the technical field of chromatography experiment cabinets, in particular to a space compression chromatography experiment cabinet. The space compression chromatography experiment cabinet comprises a cabinet body, two mounting columns and two partition plates, and two stabilizing pieces are arranged on the two sides of the side, close to the partition plates, of the interior of the cabinet body and the sides, close to the partition plates, of the two mounting columns correspondingly. According to the chromatography experiment cabinet, the placement requirements of experiment instruments with different heights are met, the positions of the partition pieces can be flexibly adjusted in the horizontal direction through the sliding pieces with the fixing pieces, the adjusted positions of the partition pieces are fixed through the fixing pieces, the use stability of the chromatography experiment cabinet is improved, the chromatography experiment cabinet adapts to the instruments with different widths, the space utilization rate is increased, and space waste is avoided; experiment instruments of various shapes and sizes can be reasonably placed, the flexibility of space separation of the chromatography experiment cabinet is improved, and the practicability of the chromatography experiment cabinet is enhanced.
Owner:ANHUI JIAXIN LAB EQUIP CO LTD
Overlock pin and fixing structure
ActiveCN224093667Uprevent fallingavoid threatsBoltsScrewsStructural engineeringMechanical engineering
Owner:FOSHAN HOUXIANG FURNITURE MFG CO LTD
Safety design method and device for main control system of UAV surveying and mapping remote sensing sensor
The present application relates to the technical field of data transmission, and in particular to a method and device for designing a security system for a drone mapping remote sensing sensor main control system. The method includes: based on a preset encryption method, encrypting the collected mapping remote sensing sensor data to determine the encrypted data; based on a predetermined transmission channel that is unidirectionally connected to the data receiving end, transmitting the encrypted data to the data receiving end; and verifying the receiving end to be detected to determine the data receiving end. The present application reduces the risk of leakage of mapping remote sensing sensor data, prevents unencrypted mapping remote sensing sensor data from being attacked, further improves the security of the mapping remote sensing sensor main control system, prevents data acquisition and sensor control environment, and the storage environment of mapping remote sensing sensor data from being threatened, and effectively isolates external attacks.
Owner:CHINESE ACAD OF SURVEYING & MAPPING
A self-cleaning disposable floss pick
The utility model discloses a disposable dental floss stick of self -cleaning, including Y type lower shell, the cavity is seted up in Y type lower shell, the top recessed surface both sides of Y type lower shell are seted up the wire hole, the internal space of wire hole and the internal space of cavity intercommunication, the one end of cavity is seted up and enters the wire recess, the other end of cavity is seted up and goes out the wire recess, through setting up winding pipe, can carry out winding to the dental floss after using, through setting up the wire pipe, can slowly put out the unused dental floss, the gear outer wall one end of in the wire recess stretches out Y type lower shell, the user can rotate the gear, when the gear rotates, another set of gear also will follow together rotating, at this moment winding pipe will carry out winding to the dental floss after using, and simultaneously the wire pipe will slowly put out the unused dental floss, thereby will transport the unused dental floss to the working end, whole operation process not only saves time, simultaneously also avoids the threat to oral cavity health, prevents the cross infection of different site oral cavity bacteria.
Owner:HULUNBEIER FEIXIANG STOMATOLOGICAL HOSPITAL CO LTD
Bridge cable maintenance equipment
InactiveCN119352427AGuaranteed to workavoid threatsBridge structural detailsBridge erection/assemblyBridge engineeringGear wheel
The invention relates to the technical field of bridge engineering, in particular to bridge inhaul cable maintenance equipment which comprises a lower shell, a driving structure, a cutting structure, a transverse cutting structure and a crushing structure. Equipment is driven by the driving structure to move on the inhaul cable body, ice is gradually cut from outside to inside through the cutting structure, and two scraper wheels are driven to rotate through meshing movement of a second gear and a first rack, so that the ice left on the outer wall of the inhaul cable body can be cleaned completely; the transverse cutting structure firstly cuts the ice body before the cutting structure works, the situation that when the cutting structure works, the ice body falls in a large area, and consequently traffic safety on the bridge floor is greatly threatened is avoided, the cut ice body enters the position between two extrusion plates through an inclined plate and is further chipped through a crushing structure, and the ice body is cut into the ice body. And huge threats to bridge deck traffic safety caused by high-altitude falling of large ice bodies are effectively avoided.
Owner:SHANXI ROAD & BRIDGE CONSTR GROUP
Tunneling integrated large boulder treatment system and method
PendingCN119308679Aeasy to handleavoid threatsMining devicesDisloding machinesExplosive AgentsArchitectural engineering
The invention relates to the technical field of tunnel shield construction, in particular to a tunneling integrated large boulder treatment system and method.A tunnel is tunneled through a tunneling module, and the position, size and shape of a boulder are detected through a boulder detection module; the boulder fracturing module performs pretreatment, drilling and fracturing operation based on the boulder position, and the boulder is split into boulder fragments; according to the method, the boulders can be effectively treated, the tunneling efficiency is improved, the construction cost is reduced, the boulders do not need to be dismantled through explosives, and the threat to construction safety due to the unreasonable explosive amount in a blasting dismantling method is avoided.
Owner:GUILIN UNIVERSITY OF TECHNOLOGY +3
Roadway airflow carbon monoxide eliminating curtain
PendingCN119425376ASmall running resistanceensure normal flowGas treatmentDispersed particle filtrationToxic gasPtru catalyst
The invention relates to the technical field of toxic gas purification, in particular to a roadway airflow carbon monoxide eliminating curtain which comprises a plurality of CO eliminating plates, the CO eliminating plates are sequentially arranged at equal intervals and are arranged in a plane mode, two metal chains are fixed to the periphery of each CO eliminating plate, and the metal chains are connected with the CO eliminating plates. And the two metal chains which are oppositely arranged between the two adjacent CO eliminating plates are fixedly connected. When the roadway airflow passes through the processed curtain, the built-in noble metal catalyst actively captures carbon monoxide in the airflow and quickly reacts with oxygen to be converted into carbon dioxide, so that CO in the roadway airflow is quickly eliminated; the CO in the roadway air flow can be kept to be lower than 24 ppm for a long time, and underground safety production is guaranteed; the structure is simple and the reliability is high.
Owner:CHINA SHENHUA ENERGY CO LTD SHENDONG COAL BRANCH +2
Double-turbine breathing machine
The utility model relates to the technical field of medical equipment, in particular to a double-turbine breathing machine which comprises a first turbofan branch, a second turbofan branch, an inspiration pipeline and an expiration pipeline, the first turbofan branch and the second turbofan branch are communicated on the inspiration pipeline, and the expiration pipeline is communicated with the first turbofan branch and the second turbofan branch. According to the double-turbine breathing machine, the first turbine fan and the second turbine fan are arranged, so that the double-turbine breathing machine can provide an air source for a patient through the first turbine fan and the second turbine fan, and when any one turbine fan breaks down, the air suction pipeline can be driven by the other turbine fan to provide the air source; the situation that when a single turbofan breaks down, an air source cannot be provided, and the life safety of a patient is threatened is avoided, and the safety and reliability of the breathing machine are improved.
Owner:AMBULANC (SHENZHEN) TECH CO LTD
Hanging device for transformer installation
The utility model relates to the technical field of transformers, and discloses a hanging device for transformer installation, which comprises a support connecting seat. The device further comprises a connecting mounting plate fixedly connected to the supporting connecting base, a fixed pushing limiting plate arranged on the supporting connecting base, a hanging rope arranged on the pushing limiting plate, an adjusting assembly arranged on the supporting connecting base and a third telescopic rod fixedly connected to the pushing limiting plate. The hanging rope is pulled to move under the guidance of the first guide roller and the second guide roller through rotation of the rotary adjusting rod, the transformer is pulled to be fixed through the hanging rope, the gradient of the transformer is adjusted, an operator can complete adjustment without depending on other auxiliary tools or cooperation of multiple persons, the operation complexity and the time cost are reduced, and the operation efficiency is improved. The installation position can be effectively and accurately aligned, the installation quality is improved, the transformer cannot shake or incline in the hoisting process, the falling or collision risk is reduced, and threats to equipment and personnel safety are prevented.
Owner:HUNAN YANNENG SENYUAN ELECTRIC POWER EQUIP