934results about How to "Flexible" patented technology

The embodiment of the invention discloses a multimedia data generation method and device, electronic equipment and a storage medium. The method comprises the steps that first dialogue content input by a user in a dialogue interface is acquired, and the first dialogue content comprises a target multimedia type; processing a target material according to the first dialogue content through an artificial intelligence model to generate target multimedia data matched with the target multimedia type; the target material comprises at least one of a target material uploaded by the user and a target material determined by the artificial intelligence model according to the first dialogue content; and displaying the target multimedia data in the dialogue interface. According to the multimedia data generation method and device, the electronic equipment and the storage medium, intelligent generation of multimedia data of various different multimedia types can be supported, the intelligence is improved, and different requirements of users are met.

The invention provides a compressed air water pumping and energy storage system which comprises an air compression set, a first heat exchanger, a second heat exchanger, an energy storage device, a third heat exchanger, a fourth heat exchanger, a turbine unit, a water pump unit, a normal-pressure water storage tank, a water wheel set, a water-gas co-containing cabin and a high-pressure air storage tank. A first throttling valve is arranged between the high-pressure gas storage tank and the water-gas co-containing cabin, and the water pump set, the normal-pressure water storage tank, the water wheel set, the water-gas co-containing cabin and the high-pressure gas storage tank are sequentially connected to form a first energy storage stage. The compressed air water pumping energy storage system is adopted, the characteristics of compressed air energy storage are combined, air is compressed and stored in a high-pressure air storage tank in the energy storage process, in the energy release process, high-pressure air is released, water in a water storage tank is compressed to be in a high-pressure state, and high-pressure water pushes a water turbine to do work for power generation.

The invention relates to the technical field of fish culture, in particular to a large-water-surface fish gathering and catching method which comprises the following steps: S1, mounting foot piles; S2, assembling a net cage; S3, mounting a blocking net; S4, gathering fishes: adopting a mode that the driving of a netting gear is primary and sound waves and current are secondary to complete the driving, gathering and catching of fish schools. The net is a driving net, and an operator drives the two paddle hanging ships to drag the driving net along the blocking net from one side of the bank of the pond to the direction close to the net cage. And S5, transferring: after the driving net drives the fish school into the net cage, an operator puts down a door curtain, captures the fish school into a net bag by using a hunting net or a net cage lifting mode, and lifts the fish school to the land by using a shipborne crane. The invention aims to effectively solve the main problems that a traditional fish catching method is low in fish gathering efficiency and bottom-layer fish is difficult to catch. Meanwhile, a plurality of secondary problems of large water surface fish area division, rapid wall attachment and bottom sinking of a net, active cruising of fish schools into a trap net, batch-by-batch multi-time catching and the like are effectively solved.

The invention belongs to the field of intelligent manufacturing, and provides an intelligent recommendation method and system based on a shared robot, and the method comprises the steps: receiving a picture and a processing demand provided by a user; determining the processing attribute of the target workpiece according to the picture; determining a processing sub-task according to the processing attribute; determining an optimal shared robot combination according to the processing subtasks and the processing requirements; and displaying the optimal shared robot combination to the user.

The invention discloses an insulating pull rod lightweight design method based on a multi-objective optimization algorithm, and aims to solve the problems of heavy weight and heavy workload of a bearing tool in hot-line work of an ultra-high voltage transmission line. The method comprises the following steps: setting electrical and mechanical property parameters of the insulating pull rod; then, a three-dimensional model is built through SolidWorks, and finite element analysis is carried out through COMSOL; then, an optimized data set is obtained through joint simulation of MATLAB, COMSOL and SolidWorks; secondly, establishing a mathematical optimization model, solving by adopting a particle swarm-grey wolf optimization algorithm, and improving the algorithm through Sine-Tent-Cosine chaotic mapping population initialization and a crisscross strategy; and finally performing simulation verification on the optimization scheme. The device is applied to the lightweight design of large-load insulating force-bearing tools, effectively shortens the development period of the tools, saves the production cost, improves the safety coefficient of hot-line work, and remarkably reduces the workload of hot-line workers.

The invention discloses a metasurface based on multi-unit periodic array distribution, the metasurface is mainly formed by periodically arranging a plurality of microstructure units, each microstructure unit comprises a subunit A1, a subunit B1, a subunit A2 and a subunit B2, the subunit A1 and the subunit A2 are in a central symmetry structure, and the subunit B1 and the subunit B2 are arranged in parallel. The subunit B1 and the subunit B2 are of a central symmetry structure, the wave absorber formed by the super-structure surface comprises a plurality of wave absorbing units which are arranged periodically, each wave absorbing unit comprises a conductive reflecting layer, a dielectric interlayer, a microstructure unit layer and a dielectric top layer which are sequentially attached from bottom to top, the electromagnetic wave absorption rate can reach 90% or above on the frequency band of 8.31-41.75 GHz, and the wave absorbing efficiency can reach 90% or above. The microwave absorber has the advantages of being flexible, easy to prepare, good in wave absorbing effect and beneficial to integration, and is suitable for being used in the technical fields of electromagnetic shielding, microwave imaging and the like, and most of electromagnetic wave energy entering the inside of the microwave absorber is lost under the action of dielectric loss and ohmic loss, and the microwave absorber has the advantages of being flexible, easy to prepare, good in wave absorbing effect and beneficial to integration.

The invention discloses a palletizing robot, and belongs to the technical field of palletizing, the palletizing robot comprises a mounting seat, a robot main body is fixedly connected to the mounting seat, a connecting shaft is connected to the robot main body in a penetrating manner, a positioning seat is fixedly connected to the bottom end of the connecting shaft, and a guide sliding strip is slidably connected in the positioning seat. According to the device, the positioning seat, the middle seat, the piston cylinder, the piston plate, the contact clamping plate, the guide sliding strip and the electric hydraulic rod are adopted, along with the action of the contact clamping plate, the middle position of the middle seat is accurately adjusted and moved to the position under a corresponding article, and the article is stably located in the center of the lower portion of the middle seat; compared with the prior art, the goods carrying stability is improved, meanwhile, any collision or inclined contact between the contact clamping plates and the goods is avoided, possible damage to the goods in the carrying process is greatly reduced, high efficiency and safety of stacking operation are guaranteed, and the situation that the goods slide and are abraded on the ground when clamped is avoided.

The utility model provides an auxiliary positioning lighting device for a jaw osteomyelitis operation, belongs to the technical field of jaw osteomyelitis operation equipment, and solves the technical problems that a doctor needs to spend a long time in judging the position and boundary of a jaw osteomyelitis focus in the operation process, the operation view is not clear, lighting is difficult and the like. The device comprises a positioning guide plate, the positioning guide plate comprises a tooth socket and a wound covering plate, a connecting plate is integrally formed between the tooth socket and the wound covering plate, a sliding groove is formed in the rear end of the connecting plate, a sliding block is connected in the sliding groove in a sliding mode, a bolt is fixed to the upper position of the rear end of the sliding block, and a long groove used for sliding of the bolt is formed in the connecting plate. A connecting mechanism is arranged at the lower position of the rear end of the sliding block, and a supporting mechanism is arranged on the connecting mechanism. The device has the advantages that the nidus of jaw osteomyelitis is positioned in real time, illumination of the operation field is kept, illumination does not need to be continuously adjusted after the position of the head of a patient is adjusted in the operation process, operation wounds are reduced, operation efficiency is improved, and the like.

The invention belongs to the technical field of network protocol stacks, and particularly relates to a method and a device for constructing an embedded network protocol stack based on Rust, common memory errors can be avoided by using the network protocol stack compiled by the Rust, a memory management mechanism of the Rust comprises an automatic recovery mechanism and an ownership system, the memory which is not used any more can be automatically released, and the reliability of the network protocol stack is improved. The common memory security problems of memory leakage, buffer overflow, repeated release and the like of the existing network protocol stack in an embedded system are solved, and the stability and the performance of the system are improved. The performance of the network protocol stack is optimized while the security of the memory is ensured, and the protocol stack is suitable for various embedded devices, especially in environments requiring high-reliability and efficient memory management. According to the network protocol stack, the memory security problem existing in a common network protocol stack is solved, and meanwhile, the effect which cannot be achieved by rewriting the network protocol stack only by simply using the Rust is achieved.

The invention discloses a preparation method of a high-barrier fresh-keeping film for food fresh-keeping packaging, belongs to the technical field of fresh-keeping film processing, and aims to solve the technical problem that the barrier property of a high-barrier fresh-keeping film to water vapor and oxygen and the tensile property of the high-barrier fresh-keeping film in the prior art need to be further improved. The preparation method comprises the following steps: adding barrier layer mixed particles, bonding layer mixed particles and a supporting layer material into a multi-layer co-extrusion extruder, carrying out melt extrusion, injecting into a multi-layer co-extrusion film machine, and carrying out blow molding to obtain the high-barrier-property preservative film which is compounded by five layers, namely a supporting layer, a bonding layer, a barrier layer, a bonding layer and a supporting layer from top to bottom, according to the invention, modified graphene is added into composite polyester of the barrier layer for modification, and waterborne polyurethane added with modified polysiloxane is prepared to obtain the bonding layer, so that the tensile property and the barrier property to water vapor and oxygen of the preservative film are further improved.

The invention belongs to the technical field of medical ultrasound, and discloses a stretchable double-frequency flexible ultrasonic transducer which comprises a front packaging layer, a back packaging layer, a flexible electrode substrate, a flexible electrode-positive electrode, a transducer array, a backing layer, a flexible electrode-negative electrode and a shielding layer. Wherein the material strength and the tensile fatigue resistance of the wave-shaped flexible electrode are far better than those of the current mainstream flexible probe electrode with an island bridge structure and other material structures, so that the overall mechanical property of the probe is improved; according to the imaging mode of the double-frequency transducer array, imaging of tissues with different depths can be achieved, and higher-quality imaging of deep tissues can be achieved through harmonic imaging. Compared with other flexible ultrasonic transducers, the flexible ultrasonic transducer has better mechanical performance, better deep tissue imaging quality and more application scenes.

The invention relates to the technical field of bending machines, in particular to a bending machine hydraulic lower workbench deflection compensation device which comprises a bending machine frame, a control panel is fixedly connected to the front surface of the bending machine frame, a top plate is installed on the upper surface of the bending machine frame, and a side block is fixedly connected to the right side surface of the top plate. A hydraulic cylinder body is installed on the top face of the side block, and the output end of the hydraulic cylinder body penetrates through the interior of the side block and is provided with a bending upper die. The lower die base is installed on the upper surface of the compensation base, and an installation shaft is installed on the lower surface of the compensation base. The compensation base and the lower die base can be restored to the original positions, the overall restoration effect is good, deflection compensation can be conducted on the compensation base in the inclined state through the design, the compensation base can be restored to the initial position after operation every time, and the compensation base can be synchronously adjusted to be horizontal no matter which end of the compensation base is inclined.

The utility model belongs to the technical field of fishing tools, and relates to a flexible and eye-catching type fishing rod. The rod tip rope is made of a flexible material with a through hole, and the first end of the rod tip rope and the tail end of the tail-section rod are sleeved together and bonded through super glue; the second end of the rod tip rope and the upper end of the striking rod are sleeved together and bonded through super glue. The striking rod is cylindrical and is made of a fluorescent material; a hole in the upper end of the base is matched with the lower end of the striking rod and bonded with the striking rod through super glue. And the small hole of the falling pressure bead is sleeved on the periphery of the striking rod and the upper part of the base. A metal ring is arranged at the lower end of the base, and the first end of the main line is connected with the metal ring through a rope joint. And the fishhook is connected with the second end of the main line through a rope section. The lead weight is arranged on the main line in a penetrating mode. The fishing rod is good in flexibility, flexible in bending, not prone to twining and striking, fishing enthusiasts can easily see the fishing direction on the shore, and the fishing pleasure of the fishing enthusiasts is enhanced.

The invention relates to the field of blood taking needle production equipment, in particular to vein blood taking needle automatic assembling equipment with a safety seat, which comprises a rack, a turntable and a plurality of carriers arranged on the turntable, the feeding station, the assembling station, the pressing station, the heat sealing station, the detecting station and the discharging station are sequentially arranged around the rotating disc and correspond to the carriers in position. According to the equipment, a plurality of stations are arranged and matched with the rotating disc and the carrier, automatic feeding, assembling, heat sealing, detecting and discharging of the blood taking needles with the needle wings and the safety seats are achieved, all the stations are harmoniously matched through cooperation of the clamping jaws, the clamping seats and all the air cylinders, the actions of clamping, placing and moving of the blood taking needles and all components of the blood taking needles are flexible, and the working efficiency is improved. The whole process is full-automatically and efficiently completed, excessive manual intervention is not needed, the labor cost is saved, the assembling efficiency is improved, and meanwhile foreign matter mixing in the assembling process is avoided.

The invention discloses a crossing intention judgment method, a medium, equipment and a vehicle. The crossing intention judgment method comprises the following steps: constructing a data set by using a vulnerable road user crossing positive example meeting a first preset condition and a vulnerable road user crossing negative example meeting a second preset condition; wherein the first preset condition is that the vulnerable road user has a passing behavior in front of the vehicle in the region of interest of the vehicle in the future preset time; the second preset condition is that the vulnerable road user is in the region of interest of the vehicle and has a passing behavior behind the vehicle in the future preset time; training a preset dichotomy model by adopting the data set, wherein the dichotomy model is built based on a deep learning model; and deploying the trained dichotomy model to the automatic driving system so as to judge the crossing intention of the vulnerable road user. Through the above mode, the judgment accuracy of the crossing intention of the vulnerable road user can be improved, and then the safety and comfort of passengers are improved.

The utility model belongs to the field of shaft part production, particularly relates to a supporting mechanism of a pneumatic marking machine for automobile shaft parts, and aims to solve the problems that the speed is low, the clamping force is difficult to grasp, the parts are easy to abrade, and long parts are clamped and fixed only through two clamping plates, so that the working efficiency is high. In order to solve the problems that in the prior art, the clamping force is low, and clamping is not stable enough, according to the scheme, the clamping device comprises a workbench, two sliding bases are arranged at the top of the workbench in a sliding mode, and clamping frames are fixedly connected into the sliding bases; a sliding assembly is further included, and the distance between the two sliding seats can be adjusted through the sliding assembly; according to the shaft part clamping device, the distance between the two clamping assemblies can be adjusted through the sliding assembly, meanwhile, shaft parts of different lengths can be clamped, meanwhile, the shaft part clamping device can be suitable for clamping shaft parts of different sizes, the application range is wider, and flexibility is higher.

The invention relates to the technical field of ceramic pad production equipment, and particularly discloses a ceramic welding pad compression molding device which comprises a clamping and pressing structure, a pad conveying structure and a pad conveying structure, the pad conveying structure is fixedly arranged at the rear end of the clamping and pressing structure, and the pad conveying structure is fixedly arranged on the left side of the pad conveying structure; through the automatic unwinding, cutting-off and wheel cutting units, the production speed can be greatly increased, the process steps and the manual operation time are reduced, and therefore the overall production efficiency is improved; automatic equipment can replace manual work for repeated work, so that the labor intensity of workers is reduced, and the working comfort is improved; automatic equipment can realize accurate control, and errors caused by human factors are reduced, so that the quality and the consistency of products are improved; an automatic system generally has certain flexibility, parameters can be adjusted according to production requirements, and the automatic system is suitable for production of ceramic welding liners of different specifications and types, such as production of ceramic liners of different lengths and widths.

The utility model relates to the technical field of landscape walls, and discloses a garden design landscape wall which comprises a wall body, placing grooves are formed in the left side and the right side of the front surface of the wall body, a top plate is fixedly connected to the top end of the wall body, a plurality of placing plates are movably connected to the inner surfaces of the placing grooves, and sliding grooves are formed in the left inner wall and the right inner wall of each placing groove. A plurality of limiting grooves are formed in the left inner wall and the right inner wall of the placing groove, sliding plates are connected to the left surface and the right surface of the placing plate, notches are formed in the left side and the right side of the upper surface of the placing plate, push plates are movably connected to the inner surfaces of the notches, and limiting rods are inserted into the bottom ends of the push plates. According to the landscape wall, the height of the corresponding placement position is automatically adjusted according to the height of the placement position and the placement level, so that the structure of the landscape wall has flexibility, rainwater or automatically added quantitative water can be circulated and fall down along the canopy through the top end of the landscape wall, the pattern is improved, and meanwhile, the rainwater is prevented from influencing decoration of the landscape wall.

The present invention belongs to the technical field of power conversion, and specifically relates to a conversion circuit based on a multi-phase magnetic integrated transformer and a transformer leakage inductance adjustment method, which aims to solve the problem that the resonant inductor and transformer in the traditional high-frequency resonant converter are large in size and high in loss, and the conventional magnetic integrated transformer cannot accurately design the leakage inductance. The present invention includes: an input filter circuit, a half-bridge switching circuit, a multi-phase transformer, a resonant circuit, a rectifier circuit and an output filter circuit, wherein the multi-phase transformer is a multi-phase magnetic integrated transformer, and the resonant inductor in the resonant circuit is the secondary parasitic leakage inductance of the multi-phase magnetic integrated transformer. The present invention adopts a multi-phase magnetic integrated transformer with a simple structure, small size, low cost, and a flexibly adjustable winding turn ratio, so that the multi-phase high-frequency converter has high power density, small size and low cost.

The invention discloses an order data risk monitoring system and method based on cloud computing, and relates to the technical field of data analysis. The system comprises a data acquisition and processing module, a known risk factor extraction and evaluation module, a feature analysis and threshold calculation module, an unknown risk factor extraction and evaluation module and a real-time data monitoring and alarm module. The data acquisition and processing module collects historical order data and risk judgment records and forms a first feature vector; the known risk factor extraction and evaluation module extracts known risk factors and calculates a first risk evaluation index; the feature analysis and threshold calculation module performs analysis to obtain an evaluation threshold and a second feature vector; an unknown risk factor identification and evaluation module identifies an unknown risk factor, calculates a second risk evaluation index and determines a threshold value of the second risk evaluation index; the real-time data monitoring and alarm module collects order data in real time, calculates a risk assessment index, compares a threshold value and outputs risk prompt information.

The utility model discloses a turnover panel sorter workbin pushing frame mechanism, automatic confluence mechanism, sorting line, including workbin, workbin support plate, base support, drive unit and pushing frame plate, workbin is placed on the workbin support plate, workbin support plate is installed on the top of base support, drive unit is arranged below one end of workbin support plate, and the other end of workbin support plate is installed on the base support. The frame pushing plate is arranged on the material box supporting plate, one end of the frame pushing plate extends downwards to be connected with the driving unit, the frame pushing plate is driven by the driving unit to reciprocate in the lengthwise direction of the material box supporting plate, the material boxes are pushed by the frame pushing plate to move, and the confluence conveying line transversely arranged on the frame pushing mechanism is used for conveying the material boxes pushed by the frame pushing mechanism. The plate turnover machine body comprises a sorting trolley tray used for throwing materials into the material box, and through the structural design, the problems that according to an existing plate turnover sorting machine, the efficiency is affected and the labor cost is increased due to the fact that the full-material containers and the materials still need to be manually carried to a designated operation area to be packaged and sealed are solved.

The invention provides a continuous fluid separation system for recovering lithium from mirabilite, and relates to the technical field of continuous fluid separation. A continuous fluid separation system for recovering lithium from mirabilite comprises a plurality of treatment subsystems, each treatment subsystem comprises an exchange area, a material washing area and an acid regeneration analysis area which are arranged in sequence, and each separation unit of the treatment subsystems is filled with a titanium adsorbent filler; the exchange area adopts a three-parallel two-serial feeding mode; gradient washing is carried out in a three-string mode in the material washing area; and the acid regeneration analysis area adopts a three-parallel analysis mode. According to the continuous fluid separation system for recovering lithium from mirabilite, the recovery rate of lithium can exceed 90%, continuous operation is achieved, product components and concentration are kept stable, and the use amount of washing water and an acid regenerant is greatly reduced.

The invention discloses shot blasting equipment and technology for roughening and anti-skid treatment of the surface of stone, and the shot blasting equipment and technology are applied to the technical field of roughening and anti-skid treatment of the stone. When stone is conveyed, a roller and an air blowing assembly can be jacked up along a guide support through a mounting support, so that bristles and the air blowing assembly can adapt to the height of the stone, shot removal and dust removal work of the stone is flexible, conveying of the stone can drive a lifting assembly to rotate, the lifting assembly periodically knocks the stone, and the stone can be conveniently and rapidly lifted. According to the stone cleaning device, through vibration, broken shots and dust attached to the stone are loosened through vibration, then the cleaning effect of the bristles on the shots and the dust in the follow-up process is improved, the shots and the dust on the stone are cleaned through the bristles in advance through cooperative use of the air blowing assembly and the bristles, and the stone cleaning effect is improved. And the shots and the dust are blown away from the upper surface of the stone by using the air blowing assembly with the adjustable blowing angle.

The invention discloses an integrated electro-thermal conversion direct heating device for a tobacco product and a preparation method of the integrated electro-thermal conversion direct heating device. The heating device is formed by combining an electric heating conversion element and an injection molding part through in-mold injection molding; the inner surface of the injection molding part and the inner surface of the electric heating conversion element are positioned on the same curved surface and form a through hole for accommodating a tobacco product; the two ends of the electric heating conversion element are exposed out of the outer surface of the injection molding part and used for being connected with external conductive pins. The tobacco shred section is surrounded through the through hole, and the tobacco product is directly and accurately heated, so that the temperature rise speed of the tobacco shred section is high, the heating efficiency is high, the heating effect can be achieved without too high temperature, and the situation that the surface of the tobacco product is burnt and the internal temperature of the tobacco shred section does not reach smoking is avoided; and the other end of the tobacco product extends out of the other end of the injection molding part to serve as a suction nozzle without scalding the nozzle. Besides, the heating device is high in plasticity, the two ends of the heating device can be connected with different structural forms, and the heating device can be flexibly changed according to tobacco products of different lengths, so that universality is good.

The present disclosure provides an evaluation method and device for the coordinated development of a photovoltaic power generation system and an ecological environment, and relates to the field of data analysis technology. The method includes: constructing an evaluation index system based on multiple coordinated development evaluation factors, the evaluation index system includes an index layer and a factor layer; establishing multiple judgment matrices corresponding to the index layer and the factor layer based on the importance of the coordinated development evaluation factors; determining the weight vectors corresponding to the index layer and the factor layer and the maximum eigenvalue corresponding to each judgment matrix based on the judgment matrix; performing a consistency check on the judgment matrix based on the maximum eigenvalue and the weight vector, and determining the weight value corresponding to the coordinated development evaluation factor; and performing score calculation based on the preset reference value, the actual value of the evaluation factor and the weight value. The technical solution in the present disclosure can improve the accuracy and comprehensiveness of the evaluation method for the coordinated development of a photovoltaic power generation system and an ecological environment.

A water supply and drainage engineering pipeline connecting device belongs to the technical field of building outer pipes and comprises an outer pipe, second flanges are arranged at the two ends of the outer pipe respectively, an inner pipe is sleeved with the outer pipe, a first flange is arranged at one end of the inner pipe, a plurality of connecting holes are formed in the first flange and the second flanges, and a rubber ring is fixedly installed at the other end of the inner pipe. A hollow cavity is formed among the rubber ring, the inner pipe and the outer pipe, the waterproof cloth is fixedly installed in the inner pipe, the waterproof cloth is cylindrical, and the middle of the waterproof cloth is tensioned. The waterproof cloth is simple in structure and ingenious in conception, the waterproof cloth has cloth flexibility, when the waterproof cloth is impacted by water, buffering and damping can be conducted, impact during falling can be reduced, and therefore noise is reduced, the waterproof cloth can deform after being impacted, and dirt is not prone to being attached to the surface; the middle of the waterproof cloth is tensioned to be rectangular, so that the flowing speed of water flowing along the inner surface is smaller when the water passes through, noise is further reduced, in addition, the hollow cavity can block noise transmission, actual requirements can be met, and the waterproof cloth is suitable for popularization.

The invention relates to an equipment authority management method and device, a medium, electronic equipment and a program product, belongs to the field of equipment authority management, can meet equipment authority management requirements in various equipment use environments, and has universality and very high flexibility. The equipment authority management method comprises the steps that a target authority management strategy for target equipment is acquired from authority management strategies pre-configured by a server side, and the target equipment belongs to equipment subjected to authority management by the server side; the pre-configured authority management strategy is an authority management strategy pre-configured by the server for each device subjected to authority management; and according to the target authority management strategy, performing authority management on the administrator authority on the target equipment, and creating a customized token with the administrator authority to perform authority improvement of the target equipment.

The invention relates to the field of unmanned aerial vehicle control, and provides an unmanned aerial vehicle automatic landing control method, which comprises the following steps of: initializing an IMU (Inertial Measurement Unit) sensor, setting an initial attitude and a speed value, starting a binocular camera system and the IMU sensor on an unmanned aerial vehicle, calibrating a binocular camera, and ensuring the consistency and accuracy of image acquisition. The unmanned aerial vehicle can accurately identify ground markers and calculate accurate position and attitude information relative to the ground by adopting a data fusion technology of a binocular camera system and an IMU (Inertial Measurement Unit) sensor, so that not only is the positioning accuracy improved, but also the unmanned aerial vehicle can realize a more stable and accurate automatic landing process under a complex environment condition, and the unmanned aerial vehicle is more convenient to use. In addition, data processing is carried out in combination with an extended Kalman filter, the robustness of the system is further enhanced, it is ensured that good control performance can be kept even in the face of external interference, and therefore the safety and reliability of landing are remarkably improved.

The invention provides an acute severe pancreatitis necrotic focus debridement drainage device, and belongs to the technical field of medical instruments. Comprising a minimally invasive channel, a puncture outfit is inserted in the minimally invasive channel, a drainage tube is inserted in the puncture outfit, one end of the drainage tube is fixedly connected with a drainage head, and the other end of the drainage tube is fixedly connected with an operating handle; and the drainage assembly is used for assisting the user in cleaning necrotic tissues in the necrotic focus. The drainage assembly is arranged, the drainage assembly can assist an operator in cutting and cleaning necrotic tissues on visceral organs, and for some necrotic tissues which are not completely separated from the visceral organs, the phenomenon that the necrotic tissues adhere to the visceral organs is not beneficial for the operator to wash and clean necrotic substances; at the moment, an operator can cut the tissue by means of the drainage assembly, so that the tissue is easier to wash down by water, and thoroughness in tissue cleaning and efficiency in the cleaning process are guaranteed.

The invention discloses a target positioning method, device and equipment and a storage medium, and relates to the technical field of student standing tracking, and the method comprises the steps: carrying out the motion capture of a standing student through employing an AI figure detection algorithm, and determining the position information of the standing student in a panoramic camera; calculating a first offset from the standing student to the close-up camera according to pre-obtained calibration parameters and position information; coarse positioning of the standing student is realized according to the first offset, and a panoramic image and a close-up image after coarse positioning are acquired; and calculating a second offset from the standing student to the close-up camera according to the panoramic image and the close-up image, and controlling the close-up camera to a corresponding position based on the second offset to realize fine positioning. According to the method, the accuracy of target positioning of the close-up camera is ensured after coarse positioning and fine positioning, and the problem of limitation caused by fixed mounting angles among multiple cameras is effectively solved by combining an image processing technology and an intelligent algorithm.