389results about How to "Avoid fixation" patented technology

The invention discloses a defense method oriented to adversarial patch attacks, and the defense method oriented to adversarial patch attacks is realized by designing an adversarial mask generation method and a classification-reconstruction joint training method by utilizing the characteristic that a mask reconstruction task has good feature extraction capability. According to the defense method facing the adversarial patch attack, an image recognition model is divided into a backbone network and a full connection layer which are respectively used for feature extraction and classification prediction, and after a reconstruction model is connected to the backbone network, the reconstruction model is used for receiving image features extracted by the backbone network and reconstructing an image. The connected image recognition model backbone network, the full connection layer and the reconstruction model are generally called as training models. The connection mode does not need to modify the structure of an original image recognition model, only optimizes the weight parameters of the original model, is suitable for deep learning visual models of any architecture, is suitable for models in any training state, and does not need to forcibly train from the beginning.

The invention discloses an aerial view target detection method and system, a storage medium and equipment, and belongs to the field of BEV visual detection map reconstruction.The method comprises the steps that S1, images from different camera visual angles are input, and features of the different camera visual angles are extracted through a backbone network; s2, redesigning a time encoder through deformation and splicing by using long-period time information, and processing the characteristics of different camera visual angles through the designed time encoder; s3, based on a processing result of the step S2, further utilizing dynamic deformable attention to extract spatial features of the image; s4, processing the features obtained in the step S3 by using a feedforward network, and generating a final BEV feature map; and S5, performing target detection by using the final BEV feature map. According to the method, dynamic deformable attention is fused in aerial view angle detection, so that image query is more comprehensive, the calculation overhead is low, meanwhile, time sequence coding is improved, long-time historical information can be better integrated, and the robustness and accuracy of detection are improved.

The invention discloses a planting method for promoting growth of eucalyptus root systems and effectively improving typhoon resistance. The planting method comprises the following steps: (1) selecting a forest land; (2) forest land cleaning; (3) planting density; (4) digging planting pits; (5) applying a bottom-layer bag-controlled slow-release fertilizer; (6) applying a base fertilizer; (7) field planting; (8) applying a shallow-layer bag-controlled slow-release fertilizer; (9) complementary planting; and (10) topdressing. According to the technology, bag-controlled slow-release fertilizers with different slow-release time are applied in different places, nutrients are continuously supplied to plants under deep root systems and around shallow root systems within a certain time range, volatilization, leaching loss and permeation of nitrogen fertilizers, fixation of phosphate fertilizers and migration loss of potash fertilizers can be reduced to the maximum extent, and the utilization rate of the fertilizers is increased. Meanwhile, through the fertilizer taxis of the eucalyptus root systems, extending growth of deep root systems and shallow root systems is guided, the grabbing and attaching force of the eucalyptus is improved, and therefore the typhoon resistance of the eucalyptus is effectively improved.

The invention discloses a ternary sand-fixing water-retaining seepage-proofing fertility-increasing vegetation restoration and reconstruction method, and relates to the technical field of operation methods of sand ecological restoration, and the method comprises the following steps: S1, laying a layer of seepage-proofing material on the surface layer of a target planting area to reduce water seepage and enhance soil water-retaining capacity; s2, mixing a water-retaining agent with local sandy soil to form a water storage layer, and paving the water storage layer on the surface of the impermeable material to ensure that the plant root system can obtain water for a long time; s3, applying an organic fertility intensifier to the water storage layer to improve the organic matter content and nutrient supply capacity of the soil; s4, appropriate plants are selected for planting, after planting, the vegetation growth condition and the soil humidity are checked regularly, a water-retaining agent and an organic fertility increasing agent are supplemented in time according to needs, and it is ensured that the vegetation can grow healthily. The planting method provided by the invention has a remarkable yield increasing effect, the survival rate of plants can be effectively improved, and the effect of fixing sand for a long time is achieved.

The utility model discloses a high chromium steel forge piece machining positioning clamping structure which comprises a supporting plate, supporting feet are fixedly installed on the lower surface of the supporting plate, an extending plate is fixedly installed on the outer side surface of the supporting plate, a fixing plate is fixedly installed on the inner side surface of the extending plate, a rotating plate is movably arranged below the fixing plate, and a clamping plate is fixedly installed on the rotating plate. A plurality of sliding grooves are formed in the upper surface of the fixing plate at equal intervals, sliding blocks are slidably connected into the sliding grooves, round rods are fixedly installed on the upper surfaces of the sliding blocks, rolling wheels are rotatably connected to the outer sides of the round rods, and transmission shafts are rotatably connected to one sides of the supporting legs. According to the tool, the forgings can be clamped and positioned through the multiple clamping mechanisms, the cylindrical forgings can be conveniently and accurately fixed to the middle position of the tool, the positioning effect of the cylindrical forgings is improved, and when the cylindrical forgings are rotated, the positions of the contact positions of the clamping mechanisms and the cylindrical forgings can be conveniently adjusted at the same time; and the contact position is exposed for machining, and the angle adjusting effect of the cylindrical forge piece is improved.

The utility model relates to the field of detection devices, and discloses a novel helium mass spectrometer leak detection device which comprises a body, four fixing bolts are fixedly connected to the lower side in the body, a fixing strip is slidably connected between the exteriors of the two fixing bolts on the same side, and a mechanical pump is fixedly connected between the tops of the two fixing strips. A motor is fixedly connected to the left side of the mechanical pump, a threaded rod is fixedly connected to the output end of the motor, sliding blocks are in threaded connection to the left side and the right side of the threaded rod, connecting rods are rotatably connected to the front sides and the rear sides of the sliding blocks, inserting rods are rotatably connected to the outer sides of the connecting rods, and limiting plates are slidably connected to the outer portions of the inserting rods; a clamping assembly is installed on the top of the body. The motor drives the threaded rod, the threaded rod drives the sliding block, the sliding block drives the connecting rod, and the connecting rod drives the inserting rod to work, so that the mechanical pump can be quickly dismounted, time and labor are saved, the working efficiency is effectively improved, and the use of an auxiliary tool for dismounting is avoided.

The invention discloses electric vehicle special-shaped pipe machining and welding equipment, and relates to the technical field of electric vehicle pipe welding, the electric vehicle special-shaped pipe machining and welding equipment comprises a machine shell, the inner wall of the machine shell is rotatably connected with a rotating shaft, the outer surface of the rotating shaft is fixedly connected with a protective cover, and the upper surface of the machine shell is fixedly connected with a pressing part; in the process that the surrounding device drives the rolling wheels to rotate circumferentially, the rolling wheels can be made to roll in the mode of being attached to the outer surface of the special-shaped pipe. Therefore, the extrusion force of the special-shaped pipe on the roller can change along with the change of the contact position of the roller and the surface of the special-shaped pipe, and the extruded roller can drive the moving box and the welding gun to move, so that the welding gun can automatically adjust the position of the welding gun according to the position, needing to be welded, of the special-shaped pipe; the rotary welding center and the center of the connecting position of the special-shaped pipes are always kept coincident, and it is guaranteed that in the process that the equipment conducts rotary welding on the special-shaped pipes with different diameters, weld joints at the connecting position are always kept complete and coherent.

The utility model relates to the technical field of safety valves, in particular to a duplex spring safety valve. Comprising a safety valve body and a butt joint pipe, lifters are arranged on the upper end surface of the safety valve body, an adjusting device is arranged at the position, corresponding to the butt joint pipe, of the arc face of a discharge pipe, the adjusting device comprises a plurality of fixing frames, one end of each fixing frame is fixedly connected with the arc face of the discharge pipe, and rotating rods are rotationally connected to the inner walls of the fixing frames; the arc surface of the rotating rod is in threaded connection with an extrusion ring, the arc surface of the butt joint pipe is fixedly connected with a connecting ring, clamping frames are fixedly connected to the positions, corresponding to the rotating rod, of the arc surface of the connecting ring, the section of each clamping frame is in a U shape, and the inner wall of each clamping frame is connected with the arc surface of the rotating rod in a clamped mode. The ends, close to each other, of the butt joint pipe and the discharge pipe are slidably connected with the same neck bush in an inserted mode. The duplex spring safety valve provided by the utility model has the advantage that the whole safety valve pipelines can be conveniently mounted and limited.

The invention belongs to the technical field of environment monitoring, and particularly relates to an ecological environment monitoring device and method. A soil monitor is arranged in the soil detection station; the soil detection station comprises an insertion cylinder; an equipment box is arranged at the top of the insertion cylinder; a first servo motor, a second servo motor and a soil monitor are mounted in the equipment box; a conical block is rotationally mounted at the bottom of the insertion cylinder; a lead screw is mounted on the first motor; a mobile monitoring mechanism is arranged in the insertion cylinder; the mobile monitoring mechanism comprises an annular bin; a driving block is fixedly connected in the annular bin; the second servo motor is fixedly connected with a rectangular rod; a turntable is arranged on the right side of the driving block; a detection assembly is arranged on the right side of the turntable; by arranging the mobile monitoring mechanism, the position of the annular bin can be moved up and down according to monitoring requirements, soil of different depths can be monitored, and therefore the soil monitoring range can be widened.

The utility model provides an electric appliance switch fixing structure, belongs to the technical field of electric appliance switches, and aims to solve the problem that a plurality of electric appliance switches are generally mounted on a mounting plate of a conventional electric cabinet and need to be independently fixed, so that the operation is relatively tedious. Comprising an installation fixing plate, an installation guide rail piece, an adjustment limiting sliding groove, an electric appliance switch body, a limiting jack, an adjustment limiting sliding block, a fixing locking mechanism and an adjustment protection mechanism. The mounting guide rail piece is welded in front of the mounting fixing plate; the adjusting and limiting sliding grooves are formed in the inner sides of the installation guide rail pieces correspondingly. The limiting jack is arranged behind the electric appliance switch main body; the adjusting and limiting sliding blocks are connected to the interiors of the adjusting and limiting sliding grooves in a sliding mode. The fixing and locking mechanism is arranged in front of the adjusting and limiting sliding block. The adjusting protection mechanism is arranged on the outer side of the installation fixing plate, unified fixation of the electric appliance switches is achieved, fixation of the electric appliance switches is facilitated, and the installation efficiency of the electric appliance switches is improved.

The utility model relates to a simple replaceable vacuum bottle which comprises an outer bottle, a pump head assembly and a replaceable bottle, a first connecting surface is formed on the peripheral surface of an opening of the outer bottle, and meanwhile, a second connecting surface which can be sleeved on the first connecting surface from top to bottom is formed on the pump head assembly; the clamping groove used for locking the pump head assembly is formed in the first connecting face, and the clamping block capable of being matched in the clamping groove is further arranged on the second connecting face in a protruding mode, so that when the bottle needs to be replaced, the clamping block can be separated from the clamping groove only by slightly rotating the outer bottle or the pump head assembly, and the pump head assembly and the outer bottle can be rapidly separated; therefore, the replacement bottle connected to the bottom of the pump head assembly is exposed, a user can replace the replacement bottle conveniently, and the replacement bottle and the pump head assembly can be disassembled and assembled more easily and rapidly. Meanwhile, through mutual clamping connection of the clamping connection groove and the clamping block, a user can master the tightness degree between the pump head assembly and the outer bottle more easily, and next replacement can be better carried out.

The utility model provides a clamping device with an adjustable assembly rod, which relates to the technical field of clamping devices and comprises a mounting plate, a mounting block is fixedly mounted on the upper surface of the mounting plate, a threaded rod is in threaded connection with the inside of the mounting block, one end of the threaded rod is rotatably connected with a mounting frame, a rotating head is fixedly mounted at one end of the threaded rod, and a rotating shaft is fixedly mounted at the other end of the rotating head. According to the clamping device, by arranging the limiting block, the limiting rod, the push plate, the spring, the two-way lead screw, the rotating disc, the clamping plate, the electric telescopic rod and the pressing plate, different workpieces can be clamped, and the clamped workpieces can be rotationally adjusted; and the situation that the position of the workpiece is inconvenient to adjust after clamping, and other positions of the workpiece can be conveniently machined only by changing the position of a worker is avoided, the workpiece adjusting process is simplified, the moving process of the worker is omitted, the working efficiency of machining of the worker is improved, and practicability is high.

The invention discloses a patrol robot based on computer vision. The visual language navigation module is combined with an environment image captured by a camera and a natural language processing technology, analyzes a human instruction and carries out navigation and positioning; the autonomous patrol and monitoring module is responsible for sensing the surrounding environment in real time, avoiding collision, optimizing a patrol route and monitoring animal behaviors and environment states at the same time; the intelligent identification and alarm module is responsible for intelligently identifying animal behaviors and judging animal states, and once abnormal conditions are detected, the patrol robot immediately sends alarm information; the environmental parameter monitoring and regulating module is responsible for monitoring environmental parameters in the farm in real time, and the patrol robot automatically or manually adjusts environmental equipment according to a monitoring result; according to the invention, through a visual language navigation technology, a voice instruction sent by a human can be accurately understood, an optimal patrol path is planned according to the voice instruction, and the problems of fixed path and insufficient flexibility in traditional navigation are avoided.

The utility model discloses a multi-face clamping fixture for an automobile die, which belongs to the technical field of die clamping and comprises a workbench, a plurality of sliding grooves are formed in the workbench, a fluted disc is rotatably connected to the lower side of the workbench, a guide groove is formed in the fluted disc, a driving motor is installed on the lower side of the workbench, a gear is installed at the output end of the driving motor, and the gear is connected with the fluted disc in a meshed mode. A supporting rod is slidably connected between each guide groove and the corresponding sliding groove, a fixing sleeve is installed on each supporting rod, a distance adjusting mechanism is arranged on each fixing sleeve, and a fixing mechanism is installed on each distance adjusting mechanism, so that the equipment can be changed according to the shape and size of a mold during clamping, and the equipment is further more convenient to use; and the clamping is more stable.

The invention discloses a fertilizing method for effectively preventing a large amount of phosphorus nutrients in a phosphate fertilizer from being fixed by soil. The fertilizing method comprises the following steps: (1) selecting a forest land; (2) investigating soil environment types; (3) selecting types of phosphate fertilizers; (4) crushing and sieving a phosphate fertilizer; (5) packaging and producing the bag-controlled slow-release phosphate fertilizer; (6) digging fertilization pits; (7) preparing a coconut coir organic fertilizer mixture; (8) applying a bottom-layer coconut coir organic fertilizer mixture; (9) applying a bag-controlled slow-release phosphate fertilizer; (10) applying a coco coir organic fertilizer mixture on the top layer; and (11) covering with soil. By deeply digging holes and respectively applying upper and lower layers of coconut coir organic fertilizer mixtures to surround the bag-controlled slow-release phosphate fertilizer, the phosphate fertilizer is not in direct contact with soil, phosphorus nutrients are prevented from being fixed by reaction of some chemical elements in the soil, and meanwhile, the phosphorus nutrients are controlled to be continuously released for a long time through slow degradation and rotting of the packaging material, so that the slow-release effect of the bag-controlled slow-release phosphate fertilizer is improved. The release rate of phosphorus nutrients is obviously lower than that of a common compound fertilizer, and the released phosphorus nutrients are just absorbed by forest trees. The efficient utilization of phosphorus nutrients is realized.

The present invention relates to the technical field of automobile manufacturing, and discloses a pusher head adjustment tool for conveyor chain failure, comprising a main tool, wherein the main tool comprises a mounting seat, an adjustment assembly, a first positioning assembly, and a second positioning assembly. Among them, the mounting seat can be erected on the chain track groove. The adjustment assembly comprises an adjustment member and an elastic member, the middle part of the adjustment member is hinged to the mounting seat, the adjustment end of the adjustment member can support the first end of the pusher head, the upper end of the elastic member is connected to the retaining end of the adjustment member, and the lower end of the elastic member is connected to the mounting seat. The first positioning assembly is used to limit the movement of the mounting seat along the length direction of the chain track groove. The second positioning assembly is used to limit the movement of the mounting seat along the width direction of the chain track groove. The pusher head adjustment tool for conveyor chain failure provided by the present invention can adjust the angle of the pusher head after the conveyor chain fails, so as to move the trolley out of the process area, ensure the processing quality of the vehicle body, facilitate the maintenance of the conveyor chain, and improve the maintenance efficiency.

The utility model discloses a steam turbine rotor bearing bush grinder, relates to the technical field of steam turbines, and aims to solve the problems that in the background technology, a bearing bush cannot be fixed, the bearing bush rotates along with a grinding seat, the grinding seat cannot grind the inner wall of the bearing bush, the grinding efficiency is low, chippings and dust generated during grinding cannot be collected, and the grinding efficiency is low. According to the scheme, the dust removal device comprises an operation table, a sealing mechanism is arranged at the top of the operation table, the sealing mechanism comprises a sealing frame connected to the outer wall of the top of the operation table through bolts and a top cover connected to the outer wall of the top of the sealing frame through bolts, and a grinding mechanism is arranged on the operation table. According to the bearing bush grinding device, a bearing bush can be fixed when the inner wall of the bearing bush is ground, the bearing bush is prevented from rotating along with a grinding rod, the grinding efficiency is improved, chippings and dust generated during grinding can be collected, the dust is prevented from drifting in external air, and the environmental protection property is improved.

The utility model relates to the technical field of wind power foundation formwork construction, in particular to a wind power foundation formwork construction support which comprises a supporting plate, a lifting handle is arranged in the middle of the upper end of the supporting plate, fixing columns are arranged on the left portion and the right portion of the front end of the supporting plate respectively, and a fixing seat is movably installed between the two fixing columns through a movable shaft. Fixing devices are arranged at the left end and the right end of the fixing base correspondingly, a supporting mechanism is slidably installed in the fixing base through a sliding groove, a plurality of corresponding holes are formed in the left portion and the right portion of the inner lower wall of the fixing base correspondingly, and two magnetic clamping blocks are arranged on the front portion of the inner lower wall of the fixing base. Two fixing frames are arranged at the rear end of the supporting plate, and the upper end of the supporting mechanism is movably installed in the two fixing frames through a movable shaft. According to the wind power foundation formwork construction support, the fixing position of the fixing cone can be conveniently adjusted according to an actual site, the whole support can be conveniently stored, and the wind power foundation formwork construction support is convenient to move and carry.

A wooden door with a ventilating window comprises a wooden door body and the ventilating window arranged on the upper portion of the wooden door body. The wooden door body comprises a wooden middle plate, the wooden middle plate is of a rectangular plate structure, and the two sides of the wooden middle plate are each provided with a set of long-strip-shaped protruding parts in the width direction of the wooden middle plate; the pair of two-side wooden clamping plates is symmetrically arranged on the two sides of the middle plate, the inner sides of the two-side wooden clamping plates are each provided with a set of groove parts matched with the set of long-strip-shaped protruding parts in an embedded mode, a rectangular ventilation opening is formed in the upper portion of the wooden door body, and the upper portion of the wooden door body penetrates through the wooden middle plate and the pair of two-side wooden clamping plates and is provided with a rectangular ventilation opening. The utility model has the advantages that the use of a large amount of adhesive is avoided, and adverse effects on health are reduced; steel nails are prevented from being used for fixing, deformation of the door plate is reduced, and rusting is avoided. Meanwhile, the ventilation effect of the wooden door is improved.

The utility model discloses a fast detachable operation towel sheet which comprises a middle towel sheet and side towel sheets arranged on the two sides of the middle towel sheet. An operation view field is arranged in the middle of the middle towel sheet, and sliding strips are arranged on the two sides of the upper surface of the middle towel sheet; a sliding groove is formed in the lower surface of the middle towel sheet, the sliding strip is connected with the sliding groove in a sliding mode, and the side towel sheets are connected with the middle towel sheet in a clamped mode. Collecting tanks are arranged at the rear ends of the middle towel sheet and the side towel sheets; a connecting piece is arranged on the outer side of the side towel sheet, a plurality of connecting hooks are arranged on the connecting piece, and the connecting hooks are connected with an operating bed in a hooked mode. According to the operation towel sheet, the sliding connection design of the sliding strips and the sliding grooves is utilized, rapid assembly and disassembly of the side towel sheets and the middle towel sheet are achieved, the operation towel sheet can be rapidly adjusted according to needs in the operation process so as to meet the requirements of different operation visual fields, and operation efficiency is improved.

This invention discloses a dual-purpose charging gun and charging system. The dual-purpose charging gun includes a gun body, a connector, a first control component, and a second control component. When the user chooses manual charging, the plugging and unplugging action can be easily completed by operating the operating end of the first control component, which conforms to the user's operating habits. When automatic charging is required, the robotic arm connects to the gun body through the connecting area, and the second control component drives the connector to complete the hooking or unhooking action under the command of the control system, realizing fully automatic plugging and unplugging. The two working modes can be freely switched. The user can interrupt the automatic process and switch to manual operation at any time, or switch to automatic mode when manual operation fails. This solves the problem of incompatibility between manual and automatic charging functions. It also ensures charging safety and reliability through a standard-compliant hook structure, retaining the flexibility and user habits of manual operation, while possessing the convenience and accuracy of automatic operation.

The utility model relates to the technical field of cloth rolling, in particular to a functional knitted cloth rolling device which comprises a bottom plate and a rolling device body installed at the top end of the bottom plate, and a plurality of fixing frames fixedly connected to the top end of the bottom plate and symmetrically arranged are arranged on one side of the rolling device body. Through the arranged connector, the connecting rod, the connecting plate, the transmission roller, the transmission belt, the smooth particles, the rotating motor and the wire, when the device is used, the winding device body and the rotating motor are started, the smooth particles on the outer side of the transmission belt can stretch the wrinkled cloth to enable the cloth to be kept in a flat state, meanwhile, the winding device body can continuously wind the cloth, and the winding efficiency is improved. By means of the design, the wrinkled cloth can be leveled, so that the quality of the cloth is improved, movement of the cloth is not limited while the cloth is leveled, and the running smoothness of the device is guaranteed.

The invention discloses an elastic metal wire clamp and a spacer, and relates to the technical field of electric power fittings, and the elastic metal wire clamp comprises a fixed wire clamp main body, a movable wire clamp cover plate and a flexible holding assembly. One end of the movable wire clamp cover plate is hinged with one end of the fixed wire clamp main body to form a pincerlike structure with a jaw; the other end of the fixing wire clamp main body is provided with a through hole for external connection; the number of the flexible holding assemblies is two, and the flexible holding assemblies are fixed to the two sides of the jaw respectively to form wire fixing holes. The flexible holding assembly comprises a wire clamp metal elastic element and a wire protection layer installed on the wire clamp metal elastic element. The wire clamp metal elastic element is fixedly connected with the fixed wire clamp main body or the movable wire clamp cover plate; when the fixed wire clamp main body and the movable wire clamp cover plate fix and lock the wire through the fastener, the wire clamp metal elastic element generates elastic deformation, and elastic buffering is provided for the wire through the wire protection layer. The wire can be allowed to swing slightly to release stress, and stable gripping force is provided to prevent displacement of the wire.

The invention discloses an anti-deviation mechanical safety operation platform, and relates to the technical field of mechanical platforms, the anti-deviation mechanical safety operation platform comprises a mechanical workbench, the interior of the mechanical workbench is fixedly connected with a mechanical platform, two ends of the mechanical workbench are provided with anti-deviation mechanisms, and the bottom end of each anti-deviation mechanism is fixedly connected with a plurality of connecting stand columns; the bottom ends of the multiple connecting stand columns are fixedly connected with symmetrical second bottom plates, symmetrical adjusting devices are arranged on the outer sides of the multiple connecting stand columns, the bottom ends of the symmetrical second bottom plates are fixedly connected with mechanical bases, and the bottom ends of the mechanical bases are fixedly connected with multiple connecting shafts. The anti-deviation mechanical safety operation platform has the advantages that mechanical equipment is effectively fixed, the mechanical equipment is prevented from deviating, meanwhile, damage to the equipment is reduced, meanwhile, in the moving period of the mechanical safety operation platform, the equipment is adjusted, vibration to the mechanical safety operation platform is reduced, abrasion between parts is reduced, and the service life of the mechanical safety operation platform is prolonged. Therefore, the service time of the mechanical safety operation platform is prolonged.