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285results about How to "Stay safe" patented technology

Optimized operation method and system for multi-network-construction type energy storage system

The invention belongs to the technical field of distributed energy storage control, and discloses an optimized operation method and system for a multi-network-constructed energy storage system, and the method comprises the steps: carrying out the equivalence of the multi-network-constructed energy storage system, and obtaining an equivalent energy storage system; wherein the equivalent energy storage system comprises an isomorphic network-following converter, an equivalent impedance R and an ideal voltage source which are sequentially connected in series; based on the equivalent energy storage system, obtaining a small signal stability boundary condition by adopting a Routh criterion; and taking the minimum operation cost as an objective function, solving the objective function under operation constraints including small signal stability boundary conditions, and obtaining J and D of each network construction type converter at different moments, so that each network construction type converter operates under the corresponding J and D. The method is suitable for optimized operation configuration of an energy storage system comprising a plurality of network following-constructing converters, and can effectively promote advantage complementation of renewable energy sources and energy storage, thereby improving system stability and operation economy.
Owner:HUAZHONG UNIV OF SCI & TECH

Unknown environment adaptive navigation control system based on deep learning

The invention provides an unknown environment adaptive navigation control system based on deep learning, and aims to improve the autonomous navigation capability of a machine in a complex and unknown environment. According to the system, an advanced sensing module is adopted, multi-sensor data are combined, and a dynamic environment is quickly and accurately sensed through a deep learning algorithm. The online environment modeling mechanism can update the environment information in real time without depending on a pre-constructed map. And by utilizing a reinforcement learning algorithm, the system can autonomously learn and optimize path planning, and meanwhile, energy consumption, time efficiency and safety are considered. An innovative multi-mode obstacle avoidance strategy is adopted, and obstacle avoidance behaviors are dynamically adjusted according to environment complexity and machine states. The intelligent decision support system combines a decision tree and fuzzy logic, and provides fast and accurate decision ability. The adaptive motion control algorithm optimizes path tracking performance and adapts to dynamic characteristics and environmental conditions of a machine. In addition, the collaborative job mechanism supports efficient communication and task collaboration in a multi-machine system.
Owner:STATE GRID CORPORATION OF CHINA +2

Vehicle torque control method and device, electronic equipment and storage medium

The invention provides a torque control method and device of a vehicle, electronic equipment and a storage medium. The method comprises the steps that driving demand information input by a driver is acquired, the whole vehicle state of a vehicle is recognized, and whole vehicle state parameters are obtained; based on the current working condition of the vehicle, the driving demand information and the whole vehicle state parameters, the output torque limiting range of the driving motor is determined, and the output torque is limited based on the output torque limiting range so that the acceleration and the acceleration change rate of the vehicle can be controlled within the corresponding preset range; and the slip rate and the slip rate change rate of the vehicle are determined, the limited output torque is compensated based on the slip rate and the slip rate change rate of the vehicle, and the actual output torque is obtained so that the actual output torque can adapt to the current road condition. The cost can be reduced, the implementation process can be simplified, large-scale application can be achieved, the carsickness problem is effectively solved, and the driving comfort of a user is improved.
Owner:CHONGQING TONGWO AUTOMOBILE TECHNOLOGY CO LTD

Automatic dispatching control system based on photovoltaic power generation

The invention relates to the technical field of automatic dispatching and management of a power system, and discloses an automatic dispatching control system based on photovoltaic power generation, which comprises a photovoltaic power generation unit used for converting solar energy into electric energy and monitoring power generation power and power generation efficiency in real time; the energy storage unit is electrically connected with the photovoltaic power generation unit and is used for storing redundant electric energy and intelligently releasing the electric energy according to the load state of the power grid; the meteorological monitoring module is used for collecting and predicting meteorological data in real time, the meteorological data comprise sunlight intensity, temperature, wind speed and the like, and generating a short-term weather forecast; and the demand response management system is electrically connected with the power grid and the user side equipment, and the system intelligently identifies non-critical load equipment by monitoring the load of the power grid in real time. The intelligent scheduling module is combined with meteorological prediction and real-time data, so that the system can dynamically adjust the output power of the photovoltaic power generation unit, ensures that the power generation capacity is matched with the power grid demand, reduces the power waste, and maximizes the utilization of renewable energy sources.
Owner:周杨

High-barrier fresh-keeping low-temperature heat-sealing composite film as well as preparation process and application thereof

ActiveCN119427872AGood heat sealingHigh heat sealing strengthFlexible coversWrappersPolyesterComposite film
The invention provides a high-barrier fresh-keeping low-temperature heat-sealing composite film and a manufacturing process and application thereof, the composite film sequentially comprises a heat-sealing layer, a barrier layer, a reinforcing layer and a surface treatment layer from the inner layer to the outer layer, and the layers are bonded through bonding layers. The heat-sealing layer is prepared from modified polyethylene, polypropylene and a heat-sealing auxiliary agent, and the barrier layer is made of a composite material of nano aluminum oxide, polyvinylidene fluoride and an ethylene-vinyl alcohol copolymer. The enhancement layer is a polyester film, and the surface treatment layer is subjected to corona treatment. The composite film is prepared through a specific manufacturing process, and the specific manufacturing process comprises the steps of preparation of the heat sealing layer and the blocking layer, compounding, curing treatment, surface treatment and the like. The composite film disclosed by the invention has excellent barrier property and low-temperature heat-sealing capability, is suitable for vacuum packaging or modified atmosphere packaging of foods, and effectively prolongs the fresh-keeping period and the shelf life of the foods.
Owner:HAINAN MODERN COLOR PRINTING PACKING CO LTD

Ground unmanned equipment cluster path planning and formation control method

The invention discloses a ground unmanned equipment cluster path planning and formation control method. The method comprises the following steps: step 1, constructing a grid map: constructing the grid map of an operation area of a ground unmanned equipment cluster according to map information; 2, completing path planning by adopting a bidirectional A * algorithm: simultaneously searching from a starting point and an ending point, estimating the cost from a current node to a target node through an evaluation function, and completing path planning; 3, a dynamic step length adjustment mechanism: dynamically adjusting the search step length according to the environmental complexity and the state of the unmanned equipment; 4, performing formation control based on the main path: performing formation control by adopting a Leader-Follower mode; and 5, generating a cluster path: generating a final action path by using the path planning and the formation control. According to the invention, the efficiency and adaptability of the multi-ground unmanned equipment system are improved, and the stability and safety of formation control are improved.
Owner:杭州智元研究院有限公司

Construction method of anti-typhoon sea wave sea-crossing steel trestle and platform adjacent to residential building

The invention relates to a construction method of an anti-typhoon sea wave sea-crossing steel trestle and platform adjacent to a residential building. The construction method comprises the steps that firstly, deep fusion application of BIM and VR is conducted; step 2, surveying and setting out; step 3, embedding steel bars and pouring strip-shaped concrete; fourthly, the steel pipe piles are transported and lengthened; fifthly, steel pipe piles are driven; sixthly, parallel connection and diagonal bridging construction is conducted; seventhly, bearing beams are installed; eighthly, longitudinal beams are installed; ninthly, the distribution beams are installed; tenthly, bridge deck slabs and guardrails are installed; and 11, an intelligent monitoring and early warning system.
Owner:SHANGHAI BAOYE GRP CORP

Air drying system of seasoning packaging container

The invention discloses an air drying system for seasoning packaging containers, comprising a conveying mechanism which is horizontally supported by a bracket; the automatic stacking mechanism is arranged above the feeding end of the conveying mechanism and is used for uniformly stacking the packaging containers on the conveying mechanism for conveying; the air shower mechanism is arranged at the bottom of the conveying mechanism and inputs positive pressure air to the conveying surface of the conveying mechanism; the conveying face of the conveying mechanism keeps ventilated, and the automatic stacking mechanism buckles the open ends of the packaging containers to the conveying face of the conveying mechanism. The air-drying system can be used for rapidly air-drying the cleaned packaging containers, the packaging containers can be automatically stacked through the automatic stacking mechanism arranged at the front end of the conveying mechanism according to the width of the conveying mechanism, and then the opening ends of the packaging containers are buckled to the conveying face of the conveying mechanism, so that drainage is facilitated; and the air shower mechanism is combined, so that the packaging container can be conveniently air-dried, and the packaging container can be conveniently filled with materials after being sterilized subsequently.
Owner:SICHUAN WEIZIMEI FOOD TECH CO LTD

Metering detection device

The invention discloses a metering detection device, and belongs to the technical field of metering devices, the metering detection device comprises a vernier caliper, one side of the vernier caliper is fixedly connected with a mounting head, the mounting head is provided with a storage seat, the storage seat is internally and rotatably connected with a rotating frame, and the rotating frame is internally and rotatably connected with an adjusting structure. The two sides of the adjusting structure are rotationally connected with adjusting bases, one sides of the adjusting bases are provided with movable bases in a sliding fit mode, the movable bases are provided with movable bases in a sliding fit mode, the movable bases are fixedly connected with transmission mechanisms, and one sides of the movable bases are provided with cleaning brush rollers. The surface and the inner wall of a measured object are polished and cleaned by utilizing the cleaning brush roller which rotates and reciprocates, and the surface and the inner wall of the measured object are thoroughly cleaned, so that the vernier caliper can be ensured to be in good contact with the surface of the object during measurement, the influence of dirt or oil stain on the measurement precision is avoided, errors caused by uneven surface or attachments are avoided, and the measurement accuracy is improved. Therefore, the measurement precision and efficiency are improved.
Owner:LAYARD STANDARD TECHNICAL SERVICES (JIANGSU) CO LTD

Novel antifouling developing coating material as well as preparation method and application thereof

The invention provides a novel antifouling developing coating material and a preparation method and application thereof, the antifouling developing coating material has a structure as shown in formula I. In the structure of the antifouling developing coating material, platinum nanoparticles are connected with a modified phosphorylcholine polymer, and the modified phosphorylcholine polymer is partially used as an antifouling unit; and the platinum nanoparticles are used as developing units, so that the antifouling developing coating material has excellent antifouling performance and developing performance at the same time. The siloxane group in the antifouling unit can form covalent binding with the surface of the substrate, so that the coating is firmly bound on the substrate, the binding stability and safety of the antifouling developing coating material on the substrate are ensured, the antifouling developing coating material cannot be lost or fall off along with time lapse, the durability and reliability of the developing coating are remarkably improved, and the service life of the developing coating material is prolonged. Wide application prospects are realized.
Owner:SUZHOU SILVER MARS NEW MATERIALS TECHNOLOGY CO LTD

Mobile energy storage vehicle path planning method and system of improved ant colony algorithm based on positive and negative excitation

The invention belongs to the field of path planning, and discloses a mobile energy storage vehicle path planning method and system of an improved ant colony algorithm based on positive and negative excitation, and the method comprises the steps: taking the information of a regional road traffic network and a power distribution network as the input, and building a basic two-dimensional model in combination with the road trafficability affected by extreme weather and the fault state of the power distribution network; and iterating an optimal traveling path of the mobile energy storage vehicle by using an ant colony algorithm based on the established basic two-dimensional model so as to meet the power distribution demand, including forming negative feedback based on the current road trafficability so as to dynamically adjust the pheromone concentration of each path in the ant colony algorithm. According to the method, road information of a traffic department region, road accompanying conditions in extreme weather, extreme weather forecast information of a meteorological department region, power distribution network information of an electric power department region and power distribution network fault conditions in extreme weather are combined, strong correlation factors of regional road congestion in an extreme weather environment are fully considered, and the method has reasonability; and the method is more practical and is higher in applicability.
Owner:STATE GRID BEIJING ELECTRIC POWER CO +1

Antifouling developing coating material as well as preparation method and application thereof

The invention provides an antifouling developing coating material and a preparation method and application thereof.The antifouling developing coating material is of a structure shown in the formula I. The antifouling developing coating material combines antifouling and developing through a covalent binding technology, has excellent antifouling performance and developing performance, and can be applied to the field of chemical engineering. According to the invention, the stability and durability of the developing effect can be ensured, the safety is good, the application range is wider, and powerful support is provided for the safety of medical equipment and the accuracy of medical images.
Owner:SUZHOU SILVER MARS NEW MATERIALS TECHNOLOGY CO LTD

Modularized rapid detection device of box-type substation

The invention provides a modularized rapid detection device of a box-type substation, and belongs to the technical field of operation and maintenance of box-type substations. Comprising a movable vehicle body and a detection system arranged on the vehicle body, and the detection system comprises a control unit, a transformation ratio direct current resistance test module, a high-low voltage switching device and an automatic short circuit device; the transformation ratio direct current resistance test module comprises a variable frequency power supply, a voltage regulator, an intermediate transformer, a compensation capacitor bank, a direct current resistance unit, a transformation ratio unit, a direct current resistance transformation ratio commutation switching module and a measurement module; the direct current resistance unit, the transformation ratio unit, the measurement module, the high and low voltage switching device and the automatic short circuit device are all in communication connection with the interior of the control unit. Through the modular structure and the automatic switching wiring function, the detection process is simplified, the detection of the box-type substation can be rapidly and accurately completed, the detection efficiency is improved, the labor cost is reduced, and meanwhile, the detection reliability and safety are also ensured.
Owner:HENAN EPRI GAOKE GROUP CO LTD +1

Cross-country road vehicle motion control method and device based on MPC

The invention provides an MPC-based cross-country road vehicle motion control method and device, and partially solves the technical problems of poor safety and stability during high-speed driving on a cross-country road. The method comprises the following steps: modeling according to physical characteristics of the cross-country terrain to form a terrain dynamics model for identifying and quantifying terrain constraints; performing terrain constraint in the path planning process of planning the vehicle dynamics model in the sensing environment through model prediction control to form real-time optimization control of a motion track; and a kinematics control instruction of a vehicle low-level controller is formed according to the real-time optimization control to adjust the motion trail of the vehicle so as to keep stability and safety. A reliable solution is provided for an autonomous driving system passing through a cross-country road surface at a high speed, and the method has important practical application prospects.
Owner:BEIJING INST OF SPECIALIZED MACHINERY

A steam turbine main steam valve assembly and steam turbine

The present application discloses a steam turbine main steam valve assembly and a steam turbine, which relates to the field of steam turbines. The valve assembly includes a valve body, a valve core located in the valve body, and a driving component installed outside the valve body for driving the valve core to move, wherein the valve body is provided with an upper horizontal channel connected to the high-pressure steam end, a lower channel connected to the steam discharge pipe, and a vertical channel connecting the upper horizontal channel and the lower channel, and a working port is formed at the connection between the vertical channel and the upper channel. The automobile turbine main steam valve assembly adopts a valve core with an adaptive expansion area, and uses the pressure on the pressure side to achieve adaptive expansion, which enables the new technology to automatically adjust the expansion state of the valve core according to pressure changes during operation, thereby achieving a more ideal sealing effect under different working conditions. Since the valve core can achieve automatic expansion under high pressure, the sealing effect is enhanced.
Owner:NINGGUO SIFANG JINGGONG MASCH CO LTD

A water environment patrol monitoring device

The present invention relates to the field of water area monitoring technology, and specifically to a water area environment patrol monitoring device, including a monitoring probe and a circular floating boat, wherein a power mechanism is arranged inside the circular floating boat, and further comprising: an obstacle avoidance mechanism, wherein the obstacle avoidance mechanism includes a radar probe for monitoring obstacles and a moving component for driving the monitoring probe to avoid obstacles. The cleaning component can monitor whether water plants are entangled on the bottom of the detection probe and the radar probe and the signal receiving ring in the fixed cover through an image capture device, a radar probe, and a signal receiving ring. When entangled water plants are detected, the water plants at the bottom of the fixed cover are cut and removed through a cutting blade. At the same time, the water plants on the radar probe and the signal receiving ring in the fixed cover can be cut and cleaned through an arc knife, which can prevent interference with probe data collection due to clogging by water plants, thereby improving the accuracy and reliability of monitoring data.
Owner:临沂市沂水县环境监控中心(临沂市沂水县生态环境事务中心)

Visual network AI calculation method and system based on SIP signaling and video gateway

The invention provides a visual network AI calculation method and system based on SIP signaling and a video gateway. The method comprises the following steps: acquiring a real-time video stream address of camera equipment; accessing and processing a video stream by using a video gateway; carrying out algorithm processing on the frame image by using an AI analyzer; according to an analysis result of the AI analyzer, under the condition that the event meets a preset condition, the event data are stored in a receiving center, and the event is pushed to a specified subordinate system by utilizing a pushing center; under the condition that the number of camera devices or the concurrency of video streams is increased, dynamically expanding service nodes of a video gateway and an AI analyzer; and under the condition of equipment failure or network abnormity, a failover mechanism is automatically triggered. Dynamic expansion of the video gateway and the AI resolver is realized through a containerization technology, and high availability and stability of the system can be ensured to be kept even under the condition of high concurrency in combination with a load balancing strategy.
Owner:WHALE CLOUD TECH CO LTD

AB backup method for realizing OTA upgrade by single Flash Bank

The invention discloses an AB backup method for realizing OTA upgrade by a single Flash Bank, which ensures that a system can automatically recover to a previous stable version without staying in a BOOT boot area under the condition that the OTA upgrade fails. The problem that the ECU can only execute a firmware upgrading function and cannot work normally after the traditional OTA upgrading fails is avoided, so that continuous operation of core functions of the ECU is guaranteed, the driving experience of a user and the stability of a system are improved, and in addition, the method has the advantages that fault tolerance and recovery capacity of double Flash Banks similar to that of a high-end MCU are achieved on a single Flash Bank of a common MCU. Thus, an automobile manufacturer (OEM) does not need to use a more expensive special MCU for supporting an AB backup function, hardware cost is greatly reduced, and feasibility and economical efficiency of the method are improved.
Owner:SHANGHAI FENGTIAN ELECTRONICS

Wire tightening device for extra-high voltage overhead line installation

The invention relates to the technical field of wire tightening, and discloses a wire tightening device for extra-high voltage overhead line installation, which comprises a bottom plate, two support plates are fixedly connected to the upper surface of the bottom plate, snow removal mechanisms are arranged on the sides, close to each other, of the two support plates, and a lubrication maintenance mechanism is arranged on the upper surface of each support plate. The wire tightening device comprises a bottom plate, a wire tightening mechanism is arranged above the bottom plate and comprises four wire tightening lug plates, the four wire tightening lug plates are fixedly connected to the upper surface of the bottom plate, every two of the four wire tightening lug plates form a group, a pulley is rotationally connected between each group of wire tightening lug plates, guide frames are fixedly connected to the two sides of the upper surface of the bottom plate, and the guide frames are fixedly connected to the two sides of the upper surface of the bottom plate. The guide device has the primary function of tensioning a wire, ensuring that the wire keeps proper tension in the installation process, and preventing the wire from drooping or deforming due to looseness, so that the stability and the safety of a circuit are kept.
Owner:STATE GRID JIANGSU ELECTRIC POWER CO LTD DONGHAI COUNTY POWER SUPPLY BRANCH

Control authority distribution system

The invention relates to the field of industrial control, and discloses a control authority distribution system which comprises an authority request module, an authority distribution module, an authority release module and a safety fault-tolerant module. The permission request module is used for collecting control permission requests of the operation terminals; the authority distribution module dynamically processes the requests according to an M / M / 1 queuing model, a game theory model and a Markov decision process, determines the priorities of the operation terminals, and adopts the game theory model to solve conflicts if a plurality of operation terminals request simultaneously; the permission release module automatically releases the control permission under the condition that the operation is completed or overtime; and the security fault-tolerant module verifies the consistency and security in the permission allocation process through a Byzantine fault-tolerant algorithm. According to the invention, the response speed of the system can be improved, the security of multi-terminal operation and the resource utilization efficiency are ensured, and strong fault-tolerant capability and stability are provided.
Owner:WUXI KUNTAI TECH CO LTD

Active suspension structure and active suspension system

The invention discloses an active suspension structure which comprises a linear actuator, a spring assembly, a damper and a mounting frame. The linear actuator is a ball screw assembly which is of a hollow structure and is driven by a motor to do linear motion. The upper end of the spring assembly is connected with the ball screw pair assembly, the lower end of the spring assembly is connected with the mounting frame, and the spring assembly is stretched or compressed along with the movement of the ball screw pair assembly; the damper is arranged in a hollow structure in the linear actuator, and a damper piston is arranged at the front end of the damper; the upper end of the mounting frame is connected with the damper piston, the middle of the mounting frame is connected with the spring assembly, and a mounting hole for connecting a hub is formed in the bottom of the mounting frame; the bottom mounting frame moves up and down along with stretching and compression of the spring assembly. All the components are integrated into one module, all the components are modularized, the height, rigidity and damping characteristics of the suspension can be adjusted in real time, the response speed is high, and the comfort level and durability are improved.
Owner:SHENZHEN WEIYUAN PRECISION TECH CO LTD

Testing device for studying combustion characteristics of nanofluid fuel

The invention relates to the technical field of combustion testing, in particular to a testing device for studying the combustion characteristic of nanofluid fuel. The device comprises an operation table, wherein a convenient combustion adjusting mechanism and a waste gas treatment assembly are mounted on the upper surface of the operation table; the convenient combustion adjusting mechanism comprises a storage tank and a combustion chamber, a pump body is arranged between the storage tank and the combustion chamber, a connecting pipeline is connected between the storage tank and the pump body, a pressure adjusting assembly is arranged between the pump body and the combustion chamber, and an outlet of the combustion chamber is connected with a waste gas treatment assembly; a combustion component and an igniter are arranged on the top of the inner side of the combustion chamber. According to the pressure adjusting assembly, fuel flowing and gas supply can be effectively controlled, the combustion process is stable, accurate test conditions are achieved, the reliability of test results is improved, and fuel performance can be deeply analyzed conveniently.
Owner:CHANGZHOU UNIV

Boring and milling machining center

The utility model discloses a boring and milling machining center which comprises a machining table, the top of the machining table is fixedly connected with two U-shaped frames, the two U-shaped frames are jointly sleeved with two sliding plates connected with the U-shaped frames in a sliding mode, and the top of the machining table is fixedly connected with two mounting plates. And a two-way lead screw rotationally connected with the two mounting plates jointly penetrates through the two mounting plates, a handle is fixedly connected to the right end of the two-way lead screw, and a cleaning mechanism is arranged at the top of the machining table. A workpiece is placed on the U-shaped plate, the workpiece is in contact with the pressure sensor to drive the hydraulic rod to start to clamp the workpiece, the workpiece is convenient to mount and dismount, the operation is simple, and the machining efficiency is improved; and by arranging the cleaning mechanism, chippings generated in the machining process can be conveniently cleaned, and the cleanliness and safety of a working area are kept.
Owner:SHANDONG SHUODEBO CNC MASCH CO LTD

Novel antifouling developing coating material as well as preparation method and application thereof

The invention provides a novel antifouling developing coating material and a preparation method and application thereof.The antifouling developing coating material has the structure shown in the formula I. The antifouling developing coating material has excellent antifouling performance and developing performance at the same time, the stability and durability of the developing effect can be ensured, good safety is achieved, and the antifouling developing coating material can be applied to the field of chemical engineering. And the method has a wider application range.
Owner:SUZHOU SILVER MARS NEW MATERIALS TECHNOLOGY CO LTD

Rapid disinfection device for acupuncture and cupping

The invention relates to the field of acupuncture and cupping disinfection, in particular to a quick disinfection device for acupuncture and cupping, which comprises a disinfection table, a processing unit is arranged on the disinfection table, and the processing unit comprises a disinfection cylinder fixed on the disinfection table, a cleaning mechanism for cleaning a cupping device and a clamping mechanism for fixing the cupping device. The cleaning mechanism comprises an inner brush part and an outer brush part, a driving shaft used for driving the inner brush part to rotate is coaxially arranged in the disinfection cylinder, and a connecting structure used for ensuring that the cupping device is clamped between the inner brush part and the outer brush part is arranged between the inner brush part and the outer brush part. The inner brush part and the outer brush part are tightly attached to the cupping device, the cleaning comprehensiveness is ensured, then the cupping device is locked by the clamping mechanism, the inner brush part and the outer brush part cooperatively work, the inner surface and the outer surface of the cupping device are deeply cleaned while the cupping device is kept relatively static, and the disinfection comprehensiveness and efficiency are improved.
Owner:NECK SHOULDER LUMBAR & LEG PAIN HOSPITAL AFFILIATED TO SHANDONG FIRST MEDICAL UNIV (NECK SHOULDER LUMBAR & LEG PAIN HOSPITAL OF SHANDONG ACAD OF MEDICAL SCI) +1

Anti-overturning support for municipal bridge

The utility model relates to the technical field of bridge supports, and particularly discloses a municipal bridge anti-overturning support which comprises a support body and inclined supporting seats arranged on the two sides of the top of the support body. The inclined supporting seat is connected with the seat body through a mounting piece, and an anti-overturning seat connected with a bridge is mounted at the top of the inclined supporting seat; the anti-overturning seat comprises a connecting disc connected to the top of the inclined supporting seat and a fixing column connected to the top of the connecting disc, the fixing column is slidably sleeved with a limiting cylinder, the top of the fixing column is connected with three rotating seats, each rotating seat is rotationally connected with a connecting rod, and the ends, away from the rotating seats, of the connecting rods are rotationally connected with sliding blocks. Through the arrangement of the rotating seats, the connecting rods, the sliding blocks, the springs and other structures, deformation of a bridge under the effect of overturning moment can be dealt with, the bridge is allowed to conduct certain overturning displacement, the bridge is prevented from being damaged or damaged due to overlarge stress, the bridge stretches out, draws back and moves to a certain degree when the bridge deforms, and the safety of the bridge is improved. Therefore, the stability and safety of the bridge structure are kept.
Owner:HAIKOU DESIGN GRP CO LTD

Burr removing equipment for gear machining

The utility model relates to the technical field of gear machining, and discloses burr removing equipment for gear machining, which comprises a base, a conveying belt, a machining chamber, a polishing mechanism and a clamping mechanism, a rotating shaft is connected with a rotating arm and a polishing tool, the tool is allowed to perform necessary rotation and angle adjustment in the polishing process, and the clamping mechanism is connected with the rotating shaft. The supporting rod fixes the rotating arm, stability of the rotating arm in the machining process is guaranteed, the threaded protruding ring is used for fixing the polishing wheel to the connecting ring, and safety and accuracy of the polishing process are guaranteed. According to the burr removing equipment for gear machining, the equipment is provided with an advanced automatic control system which comprises an electric push rod and an accurate clamping mechanism, it is guaranteed that the gears are kept at the correct positions and angles in the whole grinding process, through the accurate control, the working efficiency is improved, it is also guaranteed that the processing quality of all the gears reaches the consistent high standard, and the product quality is improved. Therefore, human errors are reduced, and production consistency is improved.
Owner:HENAN YUEZHONG PRECISION MASCH CO LTD

Unmanned aerial vehicle adaptive path planning method based on risk triggering and local optimization

PendingCN121806917AEnsure online computing efficiencyshort generation pathVehicle position/course/altitude controlPosition/direction controlSimulationUncrewed vehicle
The invention discloses an unmanned aerial vehicle adaptive path planning method based on risk triggering and local optimization. The method comprises the following steps: (1) establishing an unmanned aerial vehicle motion and obstacle environment model; (2) constructing an enhanced artificial test field and calculating resultant force; (3) calculating a risk index and generating a trigger signal; (4) executing PSO local re-planning during triggering; and (5) updating the position of the unmanned aerial vehicle and outputting a planned path. The invention provides a PSO-APF hybrid single unmanned aerial vehicle path planning method based on event triggering, and the method achieves the real-time, safe, smooth and efficient path planning in an obstacle environment through the construction of an enhanced artificial potential field model, a risk index and event triggering mechanism, a self-adaptive local re-planning window and a PSO optimization module. And a closed-loop process of potential field guidance, risk assessment, event triggering, local optimization and path updating is formed.
Owner:JIANGSU OCEAN UNIV +1

Steam turbine main steam valve assembly and steam turbine

The invention discloses a steam turbine main steam valve assembly and a steam turbine, and relates to the field of steam turbines.The valve assembly comprises a valve body, a valve element located in the valve body and a driving assembly installed outside the valve body and used for driving the valve element to move; an upper horizontal channel connected with a high-pressure steam end, a lower channel connected with a steam discharge pipe and a vertical channel connected with the upper horizontal channel and the lower channel are arranged in the valve body, and a working port is formed at the joint of the vertical channel and the upper channel. According to the main steam valve assembly of the automobile turbine, the valve element with the self-adaptive expansion area is adopted, self-adaptive expansion is achieved through the pressure of the pressure side, the expansion state of the valve element can be automatically adjusted according to pressure changes in the operation process through the new technology, and therefore the more ideal sealing effect is achieved under different working conditions. Due to the fact that the valve element can achieve automatic expansion under the high-pressure effect, the sealing effect is enhanced.
Owner:NINGGUO SIFANG JINGGONG MASCH CO LTD