113results about How to "Adapt to needs" patented technology

The invention provides a remote sensing monitoring multi-scale space grid index construction method and device, and belongs to the technical field of remote sensing monitoring, and the method comprises the steps: dividing uniform basic grids based on the geographic boundary of a monitoring region; calculating a service importance score fusing the supervision priority, the geographic complexity and the historical change frequency for each basic grid; according to the score, a preset threshold value and a dynamic decision, refinement, maintenance or aggregation operation is executed on the basic grid, and a service-adaptive multi-scale grid structure is formed; unified codes based on a Z-order curve are generated for all the grids; establishing association mapping between the water conservancy business object and the grid and determining a main grid; and finally outputting a spatial grid index fusing geometry, coding, hierarchy, attribute and association relationship. According to the method, the AI interpretation efficiency of the mass remote sensing data can be remarkably improved, the allocation of computing resources is optimized, and the accuracy of monitoring and early warning is improved through deep fusion with business rules such as river and lake supervision.

The invention relates to the technical field of chain skimming machines, and discloses a chain skimming machine for a rectangular pool, the chain skimming machine comprises a conveying mechanism and a skimming mechanism, the conveying mechanism is arranged on a sedimentation tank, the skimming mechanism is arranged on the conveying mechanism, the skimming mechanism comprises a conveying frame and a skimming plate, the conveying frame comprises a cross beam and a guide rod, and the skimming plate comprises a main plate and an auxiliary plate. The cross beam is horizontally arranged on the conveying mechanism, the guide rods are arranged at the ends of the cross beam respectively and are in sliding fit with the cross beam, and driving units for driving the guide rods to move are further arranged between the guide rods and the cross beam; the main plate is horizontally arranged on the cross beam, the auxiliary plate is arranged on the guide rod, the moving area of the auxiliary plate and the moving area of the main plate partially coincide, and the auxiliary plate is rotationally hinged to the guide rod and rotates around the vertical plane along with fluctuation of the inner wall of the sedimentation tank through the swing unit. When the gap between the skimming plate and the tank wall is too large, the auxiliary plate is close to the tank wall in a self-adaptive manner to make up the gap, so that the effect of cleaning the scum is achieved.

The application relates to the alloy preparation technical field and provides a preparation method of a high-performance tin-copper alloy wire, which comprises the following steps: tin and copper are smelted in a vacuum environment, and then cooled to obtain a tin-copper intermediate alloy; pure copper and the tin-copper intermediate alloy are smelted and refined in a vacuum environment, and then the alloy solution after the refining is drawn to prepare a tin-copper alloy rod; the tin-copper alloy rod is vacuum heat-treated, vacuumizing is stopped after the heat treatment temperature reaches 750-900 DEG C, nitrogen-oxygen mixed gas is filled, tin on the surface layer of the tin-copper alloy rod reacts with oxygen to generate tin oxide, heat treatment is carried out after the heat treatment, heating is stopped after the heat treatment is completed, and natural cooling is carried out to obtain a tin-copper alloy rod blank; the tin-copper alloy rod blank after the vacuum heat treatment is subjected to rough drawing treatment. The preparation method disclosed by the application obtains a high-strength high-conductivity copper-tin alloy wire through a vacuum heat treatment internal oxidation technology, and realizes accurate regulation and control of the composition of a copper-tin alloy wire blank.

The utility model discloses a combined flower box, relates to flower box technical field, including flower box entirety, flower box entirety includes box bottom plate, a plurality of groups of horizontal plate, a plurality of groups of side plate and top plate, box bottom plate top is fixed with the fixture block, horizontal plate outer wall is fixed with the first extension block. The beneficial effects of the utility model are that one sides of the clamping blocks are clamped in the first clamping grooves on the transverse plates, the transverse plates are clamped between the two groups of clamping blocks, the other sides of the clamping blocks are clamped in the second clamping grooves on the side plates, and the side plates are clamped between the two groups of clamping blocks, so that the plurality of groups of transverse plates and the side plates form a surrounding shape, planting soil and plants can be conveniently contained, and rapid forming is realized through splicing; the Chinese ancient mortise and tenon joint structure design concept is adopted, rapid building, moving and dismantling can be achieved, product transportation is facilitated, the greening rate of the space area is increased through multi-group flower box Loutu type stacking placement, the humanistic image is improved through embedding of a cat nest, a fish tank and other facilities, and various scene requirements are met.

This application discloses a block asphalt crushing and impurity removal device, comprising: a feeding frame, a crushing mechanism installed on the upper side of the feeding frame to crush the incoming block asphalt, and a connecting discharge mechanism on the lower side of the crushing mechanism to receive the crushed particles; a discharge frame connected to one side of the feeding frame, and a filter cylinder installed on the inner side of the discharge frame; a first discharge port on the lower side of the discharge frame, and a second discharge port on the lower side of the filter cylinder, located at the lower end of the discharge frame, to discharge small asphalt particles. This application has at least the following advantages: the tilt angle adjustment mechanism can dynamically adjust the tilt angle of the filter cylinder, thereby controlling the material flow rate, adapting to different feed rates and screening requirements, and ensuring stable screening results; by optimizing the combined design of the crushing mechanism and the filter cylinder, rapid crushing of block asphalt and efficient removal of impurities are achieved, improving overall processing efficiency.

The application relates to an air duct structure of a cabinet air conditioner and the cabinet air conditioner. The air duct structure comprises: an air inlet air duct, a first end of the air inlet air duct is connected with an air conditioner air inlet, a second end is provided with a fan, an air outlet side of the fan is connected with an air conditioner air outlet, the fan is used for sucking indoor air entering the air conditioner through the air conditioner air inlet and the air inlet air duct, and blowing the indoor air through the air conditioner air outlet; a dust suction air duct, a first end of the dust suction air duct is connected with a dust storage box of the air conditioner, and a second end is connected with any position between the first end and the second end of the air inlet air duct; wherein the dust storage box can be connected with a dust collection box of a sweeping robot, and the fan is used for sucking dust in the dust collection box into the dust storage box. When the dust storage box of the application is connected with the dust collection box of the sweeping robot, the dust in the dust collection box can be cleaned, manual disassembly of the dust collection box is not needed, the labor intensity of a user is effectively reduced, user experience is improved, and the practicability of the sweeping robot is improved.

The utility model discloses a surgical crane tower with anti -shaking structure, including crane tower transmission subassembly and crane tower main part, the fixed end of crane tower transmission subassembly is fixedly arranged on the ceiling of room, and the movable end of crane tower transmission subassembly is connected with crane tower main part, and drives crane tower main part to be active through crane tower transmission subassembly, the fixed end of crane tower transmission subassembly is provided with extruded silica gel pad, when crane tower transmission subassembly is fixed on the ceiling, extruded silica gel pad is contacted with the ceiling, and then plays the role of shock attenuation and anti -shaking. The utility model discloses crane tower transmission subassembly has adopted extruded silica gel pad, effectively reduced the vibration and noise of fixed on the ceiling, thereby reduced the interference of external environment to crane tower main part, and through the combination of guide seat and guide rod, make the movement of movable plate more stable, greatly prevented the dither of crane tower main part in the use process, improved the overall stability of equipment.

This invention provides a modular mini Bluetooth speaker, including a base with multiple speakers mounted on top. Support legs are fixedly installed at the four corners of the bottom of each speaker. A control motherboard is fixedly installed inside the base, and the motherboard includes a Wi-Fi module and a Bluetooth module. The Wi-Fi module distributes audio to each speaker via Wi-Fi for synchronized playback. The Bluetooth module is used for wireless connection with the user's mobile terminal. This invention, through the combination of magnetic support legs and limiting slots, allows users to freely add or remove speakers, easily building a multi-channel audio system to adapt to different spaces and audio needs. The magnetic connection ensures stable installation and convenient disassembly. The Wi-Fi module on the control motherboard synchronously distributes audio to each speaker for wireless connection, facilitating flexible placement and use.

The utility model discloses a wide-width positioning tool adaptive to flame-retardant polyester viscose cloth of multiple specifications, which comprises a bearing bottom frame, a left circular groove is formed in the top of the bearing bottom frame, a fixing groove is formed in one side of the surface of the bearing bottom frame, and a stable base is arranged at the bottom of the bearing bottom frame; one side of the positioning and tensioning assembly is fixedly connected with one side of the bearing bottom frame, and the positioning and tensioning assembly is used for tensioning and positioning the flame-retardant polyester viscose cloth. According to the wide positioning tool adaptive to the flame-retardant polyester viscose cloth of multiple specifications, by means of the arrangement of the clamping assembly, the cloth is clamped in the detachable outer frame in advance, the whole frame can be rapidly in butt joint with or disengaged from the tool, repeated tensioning and manual positioning are not needed each time in the cloth replacement process, and the replacement time is greatly saved. A user only needs to assemble the cloth clamping frame and new cloth, the cloth clamping frame and the new cloth are installed into the tool through one key, and the machining state can be immediately started.

The application discloses a modular installation method for a large-scale stacker-reclaimer, which comprises the following steps: S1, modular design: the structure of the stacker-reclaimer is divided into several module units, and the size and weight of each module unit are suitable for the road and hoisting equipment on site; S2, factory manufacturing and pre-assembly: the module units are divided according to the division of the module units in a factory or a pre-assembly site; S3, module splitting and transportation, and the components transported to the site are assembled according to the modules; S4, module hoisting; S5, three-dimensional measurement and installation adjustment: a large-scale stacker-reclaimer installation construction process is monitored by using a drone, a three-dimensional installation model is established, and the spatial dimensions of the stacker-reclaimer are detected through the model; the module units after hoisting are checked and adjusted to ensure the consistency and stability of the module units and the whole structure; the method provided by the application improves construction efficiency, reduces construction period, reduces cost, increases flexibility, and provides maintainability and upgradability.

This utility model relates to the field of agricultural planting, specifically disclosing a soilless cultivation rack, including a cultivation rack mechanism; the cultivation rack mechanism includes a cultivation rack assembly and a circulating water assembly; the cultivation rack assembly includes a cultivation tube, the cultivation tube having several cultivation holes, one end of the cultivation tube being fixedly connected to a water inlet pipe, and the other end of the cultivation tube being fixedly connected to a water outlet pipe, both the water inlet and outlet pipes being fixedly installed with solenoid valves; this utility model achieves separate storage and supply of nutrient solution by setting up an upper water tank and a lower water tank. The upper water tank is used to store new nutrient solution and is equipped with a nutrient replenishment port for convenient and precise addition of nutrients; the lower water tank is used to recycle used nutrient solution, which is filtered through filter pipes to reduce the accumulation of impurities, and can be transferred to the upper water tank after passing testing to avoid damage to plants.

This utility model discloses a filling device for ink production, including a main body, a splash-proof mechanism, a connecting mechanism, and a transmission mechanism. The splash-proof mechanism includes a filling box, a surrounding frame, a rubber pad, and a filling tube. The connecting mechanism includes a sliding plate, a motor, a lead screw, a connecting plate, a spring, and a locking block. The transmission mechanism includes a hydraulic cylinder, a lifting frame, a mounting frame, and a fitting plate. With the cooperation of the above mechanisms, this device can prevent ink from splashing during the filling process, which can greatly reduce ink waste, especially for high-value inks. This is particularly significant in long-term production. In addition, for the production line, this device can quickly install covering frames of different sizes, thereby switching between different specifications of products to meet the needs of small-batch production or customized orders.

The invention relates to the technical field of battery containers, in particular to a container type control room and energy storage battery cabin combined heat management system and method.The system comprises a refrigerant loop and a secondary refrigerant loop which can conduct heat transfer, and the refrigerant loop is connected to the inner side and the outer side of a control room in series to adjust the temperature and humidity of the control room; the secondary refrigerant loop is connected with the battery cluster in the battery cabin and is used for adjusting the temperature of the battery cluster; the refrigerant loop comprises an indoor unit and an outdoor unit which are connected in series, the indoor unit is arranged in the control room, the outdoor unit is arranged outside the control room, and an outdoor unit assembly can exchange heat with the secondary refrigerant loop; the battery compartment and the control chamber are arranged in the container. The mechanism is compact, the battery cabin heat management loop and the control room heat management loop are fused, energy cross-region transfer can be achieved, and cold or heat can be flexibly distributed according to the real-time temperature control requirements of the battery and the control room.

The utility model relates to the technical field of agricultural cultivation equipment, in particular to an anti-bird cultivation frame for large cherries, which is characterized in that first connecting rods are respectively fixed on a base and are obliquely arranged from inside to outside from top to bottom; a square hole is formed in the first connecting rod; the square rods are respectively inserted into the square holes; the outer end of the square rod is fixedly sleeved with a limiting plate, and the limiting plate abuts against the first connecting rod. The square tubes are respectively sleeved on the square rods; the first fixing bolts penetrate through the two sides of the outer end of the square pipe in a screwed mode through threads, and the inner ends of the first fixing bolts abut against the square rod. The first connecting pipes are arranged on the first connecting rods in a sleeving mode correspondingly. The supporting mechanism is arranged on the first connecting pipes. The large cherry saplings are stably supported, lodging of the saplings is prevented, an anti-bird net can be conveniently and rapidly installed, and bird damage is effectively avoided; the height of the cultivation frame is adjustable, the requirements of saplings in different growth stages are met, and practicability is improved.

The utility model discloses a kind of quick-drying breathable type body-building gloves, belong to body-building glove field, the back of hand of glove main body and finger cover is equipped with bone structure, the back center of glove main body is equipped with magic tape connecting part, the upper end of magic tape connecting part is connected with turnover antiskid cloth cover, and turnover antiskid cloth cover extends to finger cover, and it is convenient for body-building personnel to use;The center of turnover antiskid cloth cover is equipped with round pipe cloth cover. Turnover antiskid cloth cover design improves glove antiskid performance, ensures stable grip, while beautiful practical. The firm suture of magic tape enhances the firmness and durability of structure. Arc-shaped elastic band and connecting band combination provide stable tension, enhance grip effect. Design allows user to adjust grip strength flexibly, adapt to different body-building actions. Buffer ball absorbs impact force, reduces hand burden, ensures comfort. With turnover antiskid cloth cover cooperation, further improve antiskid performance, provide stable comfortable holding experience.

This utility model provides a bidirectional charging and discharging system for ship-shore use, relating to the field of ship energy supply technology. It includes a high-voltage input module, an AC power distribution module, a low-voltage power distribution module, an AC / DC conversion module, and cable equipment. The high-voltage input module connects to a shore-based AC power source, which is stepped down by a first transformer to supply power to the low-voltage power distribution module. The voltage is then stepped down by a second transformer and output as DC power via the AC / DC conversion module to charge the ship's energy storage unit. The AC / DC conversion module employs a bidirectional AC / DC conversion structure, enabling bidirectional power transmission between the ship and the shore-based power grid. The system uses a modular prefabricated structure, isolating the AC and DC side functional units to improve system integration and operational efficiency. It also ensures flexible switching between shore power supply and ship energy storage discharge during ship berthing, possessing excellent energy regulation capabilities and grid adaptability.

This invention provides a task collaborative reasoning method, apparatus, electronic device, and medium, relating to the field of computer technology. The method includes: dividing a task arriving on a mobile device into multiple subtasks and constructing an offloading strategy for each subtask to characterize execution on the mobile device or MEC server; constructing an average overhead minimization problem for all mobile devices within a time slot for each mobile device; reconstructing the average overhead minimization problem using Lyapunov optimization theory to obtain an independent time slot policy optimization problem corresponding to the average overhead minimization problem; transforming the independent time slot policy optimization problem into a Markov decision process and solving the Markov decision process using a deep reinforcement learning algorithm to obtain the optimal offloading strategy, optimal mobile device transmission power, and optimal number of threads allocated to the MEC server for each mobile device. The invention effectively utilizes distributed computing resources and significantly improves reasoning efficiency.

The utility model provides a stainless steel sieve tube device with adjustable aperture, which comprises a bottom plate and a pipe, a mounting plate and a clamping component are arranged on the bottom plate, a plurality of groups of drilling components are arranged on the mounting plate and used for drilling on the pipe, and a distance adjusting component is arranged on the mounting plate and corresponds to the drilling components. According to the stainless steel screen pipe device with the adjustable hole diameter, a stable clamping reference is formed through the bottom plate and the clamping assembly, and axial positioning of a pipe is achieved in combination with the displacement part; the multiple sets of drilling assemblies support synchronous punching, the conversion base rapidly switches the double-specification punching heads, the hole distance is synchronously controlled in cooperation with a linkage rod of the distance adjusting assembly, the machining efficiency and the aperture consistency are improved, the requirements for different pipe wall thicknesses and complex hole patterns are met, and the die replacement downtime is shortened.

The invention discloses a self-powered sports protector based on composite energy collection and intelligent scheduling, and belongs to the technical field of wearable equipment and energy collection. The protector comprises a flexible base body, a composite energy collection module, an energy management circuit, a customizable function module and an intelligent control unit. The composite energy collection module is mainly composed of a flexible temperature difference power generation unit, efficiently captures the temperature difference between the skin of the human body joint part and the environment during movement and converts the temperature difference into electric energy; and a piezoelectric or triboelectric nano generator can be integrated to capture motion mechanical energy, so that thermoelectric-mechanical electric composite energy is formed. The problem that a traditional intelligent protector depends on an external power source is solved, multiple requirements can be met through modular design, building of a joint health digital model is supported based on continuously-collected data, and jumping from intelligent protection to a personal exercise health management platform is achieved.

The application provides a BIM-based resident power trunk system diagram generation method, device and medium, and belongs to the technical field of building electrical design. The method analyzes the preset BIM model of the resident tower, obtains corresponding first input information, and takes the electrical parameter configuration information from the user terminal as second input information. Based on the first input information and the second input information, the preset intelligent segmentation algorithm is used to determine the corresponding power trunk segmentation information of the resident tower; wherein the power trunk segmentation information at least includes first segmentation point distribution information and second segmentation point distribution information; the first segmentation point distribution information includes the number corresponding to the electric meter box, the installation position and the covered household set, and the second segmentation point distribution information at least includes the electric meter box set covered by the single segment cable of the total distribution box; according to the power trunk segmentation information, the distribution system diagram of the resident tower power trunk is generated, and the distribution system diagram is sent to the user terminal.

This utility model relates to the field of modular sofa technology, and discloses a modular sofa that can be used for both sitting and sleeping, which can be freely combined. It includes a sofa base, with a fixed plate slidably connected between the two sides of the inner wall of the sofa base. Four telescopic rods and two hollow sleeves are fixedly connected to the top of the fixed plate. An extension plate is fixedly connected to the top of the four telescopic rods, and a drive frame is fixedly connected to one side of the two hollow sleeves. A drive assembly is provided on the inner wall of the drive frame. This utility model, through the combined use of the telescopic rods, hollow sleeves, extension plate, and drive assembly, enables expansion via the extension plate and worm gear mechanism. Users can easily pull out the extension plate and use the worm gear to drive the lead screw to raise and lower, keeping the extension plate aligned with the plane of the sofa base. This effectively increases the length of the sofa, providing more resting space, and is especially suitable for users who need a larger resting area.

The utility model relates to a gantry crane engine cable one-way locking device, and belongs to the technical field of cable locking. The device comprises a fixing plate arranged on the gantry crane, two sets of locking plates rotationally arranged on the fixing plate and a locking elastic piece connected with the locking plates and the fixing plate, a locking gap for arranging a cable is formed between the two sets of locking plates, and the cable abuts against the two sets of locking plates. The cable is provided with a reserved section between the gantry crane and the engine, the locking elastic piece is located on the side, facing the reserved section, of the locking plate, the locking elastic piece enables the locking plate to have the trend of rotating away from the reserved section, and when the cable is subjected to the tension of the reserved section, the cable drives the locking plate to rotate, so that the locking gap is gradually reduced. The application has the effect of reducing potential safety hazards caused by cable elongation.

The utility model discloses an aviation tire tread sorting stacking robot belongs to tire production and processing equipment technical field. The robot includes mobile station, elevating system, stacking mechanism, clamping device, first placing rack and second placing rack and control box. The elevating system realizes height adjustment through the cylinder drive X type frame, and the stacking mechanism is equipped with six -axis machine arm and flexible clamping jaw, can accurate capture and carry to different size tire tread. Multiple sets of flexible clamping jaw evenly distribute in the clamping device all around, and are equipped with antiskid pad, ensure the stability and security in the process of capturing. The robot system realizes the efficient, accurate sorting and stacking of aviation tire tread through the automation operation, improves production efficiency and operation quality, has reasonable structure, convenient operation, strong adaptability and the advantages such as.

This utility model relates to the technical field of microwave transmitting devices, and discloses a portable microwave transmitting device, including a base. A support seat is fixedly connected to the upper part of the base. Slide rods are fixedly connected to both sides of the inner interior of the support seat. Slide plates are slidably connected to the outer sides of the two slide rods. Fixing plates are fixedly connected to opposite sides of the two slide plates. Fixing posts are fixedly connected to the bottom of the two fixing plates. Mounting plates are fixedly connected to the bottom of the two fixing posts. Rollers are fixedly connected to the bottom perimeter of the mounting plates. Fixing sleeves are fixedly connected to both sides of the inner interior of the base. This utility model facilitates the movement of the device, allows for rapid deployment of the microwave transmitting device in different locations as needed, and allows for easy adjustment of the height of the microwave generator body, optimizing the coverage and intensity of the microwave signal, thereby ensuring effective signal transmission and reception.

The utility model discloses a multi-stage adjusting type engineering distance measuring device, and relates to the technical field of distance measuring. A pointer is rotatably mounted on one side of the distance measuring wheel, a mechanical digital display dial plate is rotatably mounted on the other side of the distance measuring wheel, a rectangular plate is fixedly mounted at the bottom of the mechanical digital display dial plate, a sleeve is fixedly mounted at the top of the rectangular plate, a rectangular rod is inserted into the top of the sleeve, and a plurality of fixing holes are symmetrically formed in the outer side of the sleeve. A connecting assembly is arranged in the rectangular rod, the fixing hole is matched with the connecting assembly for use, a rectangular movable groove is formed in the side, close to the top, of the rectangular rod, round mounting holes are formed in the two sides, close to the top, of the rectangular rod, a U-shaped base is movably mounted at the top of the rectangular rod through an adjusting assembly, and an arc-shaped supporting plate is fixedly mounted at the top of the U-shaped base; the adjusting assembly is installed at the top of the rectangular rod and connected with the U-shaped base, and angle adjustment and locking between the U-shaped base and the rectangular rod are integrally achieved.

The telescopic seat comprises a hinge seat, a seat cushion and a connecting rod assembly, the connecting rod assembly comprises a first connecting rod, a second connecting rod and a third connecting rod, one end of the first connecting rod is hinged to the hinge seat, the other end of the first connecting rod is hinged to one end of the second connecting rod, and the other end of the second connecting rod is hinged to one end of the third connecting rod; the other end of the third connecting rod is connected with the seat cushion. According to the seat, the hinge seat is connected with the seat cushion through the connecting rod assembly, the connecting rod assembly comprises the first connecting rod, the second connecting rod and the third connecting rod which are sequentially hinged, one end of the first connecting rod is hinged to the hinge seat, and the seat cushion is connected to the third connecting rod; according to the folding chair, the seat cushion can be folded and unfolded, the chair can be retracted when not used, the occupied space is reduced, and the folding chair is particularly suitable for a kitchen environment with limited space.

The utility model relates to the technical field of medical care, in particular to a movable folding type diabetic foot dressing change bracket which comprises a plate trailer, universal self-locking wheels are arranged at the four corners of the bottom of the plate trailer, and a handlebar is arranged at the top of the plate trailer. The number of the fixing frames is two pairs, and the two pairs of fixing frames are arranged at the top of the plate trailer and used for providing stable attachment points for supporting pipes; the supporting assembly is arranged on the plate trailer through two pairs of supporting pipes, and the supporting assembly is used for supporting the legs of a patient and adjusting the supporting positions of the legs according to needs. The rollers are finely adjusted along the legs of the patient until the legs are adjusted to the most comfortable positions of the patient, the patient does not need to lift or move the legs, the convenience of adjusting the positions of the legs of the patient is remarkably improved, and discomfort and pain in the dressing change process are reduced.

This invention discloses a three-stage displacement-related friction energy dissipation device and method, comprising a nested layer consisting of an integrally formed U-shaped outer layer and an I-shaped inner layer, with long friction blocks and U-shaped concave surfaces respectively on the U-shaped outer layer and the I-shaped inner layer; it also includes an intercalation layer with short friction blocks and arc-shaped protrusions corresponding to the long friction blocks and U-shaped concave surfaces. The two arms of the intercalation layer are inserted into the gap between the long friction blocks and U-shaped concave surfaces of the U-shaped outer layer and the I-shaped inner layer of the nested layer, and slide relative to the nested layer to achieve the first level of limiting; a second level of limiting is achieved by a screw sequentially penetrating the nested U-shaped outer layer, the intercalation layer, and the I-shaped inner layer. This invention achieves three-stage variable stiffness friction adaptive energy dissipation by providing constant friction force during the small displacement stage, exponentially increasing friction force during the medium displacement stage, and mechanically limiting and locking during the large displacement stage, which can better adapt to the differentiated requirements of structures for damping force and stiffness under earthquakes of different intensities.

This invention belongs to the field of robot safety control technology and discloses a method for safe motion planning of a dual-redundant robotic arm. A linear mapping relationship is established between the joint spatial velocities of the redundant robotic arm and the velocity of the end effector. End effector velocity constraints, safety distance constraints, and joint amplitude constraints are established, and a multi-objective joint constraint model is established by integrating a differential kinematics model with the three types of constraints. The optimal decision variables satisfy the Cartesian-Kuhn-Tucker conditions. The original expression of the Cartesian-Kuhn-Tucker conditions is clarified, and a nonlinear complementary function is introduced to reconstruct the Cartesian-Kuhn-Tucker conditions. Based on the improved Cartesian-Kuhn-Tucker conditions, a vector error function is defined, and an adaptive zeroing neural network is designed. The vector error function is iteratively solved using the adaptive zeroing neural network to obtain the optimal decision variables of the multi-objective joint constraint model. The optimal decision variables are then used as the joint motion control commands for the robotic arm and output, completing the robotic arm motion planning.

The utility model discloses a push-and-pull sunshade wall-leaning inclined shed which comprises a supporting column, a retractable assembly is arranged on the supporting column, the retractable assembly comprises a top frame, a rotating handle, a winding drum, a rotating wheel and an inserting column, the top frame is arranged at the top of the supporting column, the rotating handle is rotationally connected to one end of the top frame, and the inserting column is arranged on the top frame. The winding drum is rotationally connected to the top of the top frame, the rotating wheels are connected to one end of the winding drum and one end of the rotating handle, the inserting columns are evenly arranged on the rotating wheels, the inserting columns on the two rotating wheels intersect with each other, a fixing assembly is arranged on the supporting columns, and the fixing assembly comprises a bottom plate, connecting feet and a fixing base. The bottom plate is arranged at the bottoms of the supporting columns, the connecting feet are evenly arranged between the supporting columns and the bottom plate, and the fixing bases are evenly installed on the top frame, so that the technical problem that in the using process of an existing inclined shed mentioned in the background technology, although the existing inclined shed has the push-pull function, the folding and unfolding processes are inconvenient is solved.