68 results about "Smoke screen" patented technology

The invention provides an optimal throwing method for smoke screen jamming bombs in a multi-machine joint cooperation scene, and belongs to the field of applied mathematics and computational sciences, and the method comprises the following steps: building a missile trajectory equation according to a known enemy missile motion trajectory; constructing a single-machine single-missile shielding model; solving a maximum effective shielding duration putting strategy under a single-machine single-missile model based on a particle swarm algorithm; constructing a multi-machine joint cooperation shielding model; on the basis of a particle swarm algorithm, a genetic algorithm is fused, the maximum effective shielding duration is solved under the condition that the overlapping shielding duration is reduced as much as possible, and an optimal putting strategy is obtained. According to the method, under the constraint conditions of smoke concentration effectiveness, the shortest time interval of unmanned aerial vehicle launching and the like, the overall shielding duration of the multi-smoke-screen cloud cluster can be remarkably prolonged, and optimal configuration and utilization efficiency maximization of shielding resources are achieved.

The utility model provides an infrared interference smoke screen discharging device which is characterized in that the infrared interference smoke screen discharging device comprises a box body, the box body is divided into an upper material storage cavity and a lower working cavity by a partition plate, a conveying device is arranged at the bottom of the material storage cavity and comprises a material conveying screw rod, and the two ends of the material conveying screw rod are installed on the inner wall of the box body through bearing seats correspondingly; a switch valve and a control device for controlling opening and closing of the switch valve are arranged on the partition plate, a driving device for driving the conveying screw to operate is arranged on the inner wall of the box body, and a power supply module is arranged; a discharging device is installed in the working cavity, a smoke screen releasing opening is formed in a side plate, corresponding to one side of the air outlet direction of the discharging device, of the box body, and an air inlet is formed in a side plate, corresponding to one side of the air inlet direction of the discharging device, of the box body. The material box and the discharging device are combined into a whole, the weight is light, the cost is low, maintenance is convenient, high-speed airflow generated by the ducted fan is used for blowing powder in the working cavity into the air, and then an infrared interference smoke screen is effectively formed.

The application belongs to the technical field of emergency management and control, and specifically discloses a flexible blocking device, which comprises a box body, a smoke forming unit is installed in the box body, and a light curtain belt forming unit is further installed on one side of the box body; the smoke forming unit comprises an air inlet cover, a fan and a smoke flow guide cover which are connected in sequence; the air inlet cover is provided with a smoke storage tank; the smoke flow guide cover comprises an upper flow guide cover and a lower flow guide cover, a flow guide grating surface is arranged on the smoke outlet of the flow guide cover, and the flow guide grating surface comprises a plurality of vertically and spaced flow guide gratings; flow guide columns are arranged in the upper flow guide cover and the lower flow guide cover, and the closed surfaces of the two flow guide columns form smoke outlet annular bands with the inner sides of the upper flow guide cover and the lower flow guide cover respectively; the light curtain belt forming unit comprises a mounting frame, a plurality of aspheric lenses and a plurality of LED light sources, the mounting frame is hollow, and the plurality of aspheric lenses and the plurality of LED light sources are arranged opposite to the two sides of the mounting frame respectively. The application can form a smoke curtain belt with uniform laminar flow, and can form a more eye-catching flexible blocking effect in combination with the light curtain belt.

This invention discloses an optimization method and system for smoke screen chaff deployment based on a view cone masking model, belonging to the field of signal jamming technology. The method includes the following steps: S1, constructing an adversarial kinematic model of the missile, target, and chaff; S2, establishing a view cone masking quantitative evaluation model with masking completeness as the core; S3, defining a fitness function with the maximum effective masking time as the objective; and S4, using an adaptive genetic algorithm to solve for the optimal deployment strategy that satisfies spatiotemporal constraints. This invention solves two major bottlenecks in existing technologies: the disconnect between effect evaluation and decision control, and the excessive reliance of advanced decision models on preset conditions. It achieves accurate, direct, and decision-driven quantitative evaluation of masking effects from the first-person perspective of the missile seeker.

This invention discloses a method for scheduling unmanned vehicle swarms to maximize smokescreen coverage considering terrain constraints, belonging to the field of unmanned vehicle swarm scheduling technology. The method includes collecting raw terrain data of the task area and preprocessing it to obtain a standardized terrain dataset. This standardized terrain dataset is then input into an IMUNet network to achieve accurate terrain modeling of the task area and extract terrain constraints for unmanned vehicle operation. A smokescreen coverage model under terrain constraints is constructed based on these constraints. The total effective smokescreen coverage area of ​​the unmanned vehicles under different parameters is calculated. Using the total effective smokescreen coverage area as the optimization objective and the terrain constraints as the constraints, the QSMODE algorithm is used to solve the unmanned vehicle swarm scheduling optimization model to obtain the optimal unmanned vehicle swarm scheduling scheme. This invention improves the adaptability and robustness of the scheduling method, accurately handles complex terrain scenarios, and ensures maximum smokescreen coverage of the task area.

The utility model belongs to the technical field of indoor decoration, and particularly relates to a hidden type ceiling screen. The suspended ceiling comprises suspended ceiling assemblies, ceiling assemblies arranged below the suspended ceiling assemblies, and vertical wall assemblies which are arranged between the adjacent ceiling assemblies and can ascend and descend. The limiting assemblies can limit the ascending height of the bottom of the vertical wall assembly, and a passing groove allowing the vertical wall assembly to ascend and descend is formed between the limiting assemblies; a containing cavity which is sunken towards the upper portion of the ceiling assembly and used for containing the end of the vertical wall assembly is formed between every two adjacent limiting sets. According to the utility model, through the arrangement of the accommodating cavity, the position of the bottom of the vertical wall during ascending is fixed, so that the smoke-blocking vertical wall can be completely hidden in a ceiling, and meanwhile, the interference between the smoke-blocking vertical wall and the ceiling is reduced when the smoke-blocking vertical wall ascends, so that the operation of the smoke-blocking vertical wall is smoother. The ceiling is simple in structure, convenient to install and high in integrity after being installed, material difference between the vertical wall and the ceiling does not need to be considered, and the ceiling is suitable for popularization and application in practice.

The application relates to the technical field of camouflage smoke discharging, and discloses a gas-spraying type smoke camouflage device which comprises a storage tank and a smoke spraying pipe, an activity cavity is arranged in the storage tank, a transmission gear wheel is rotationally connected to the inner side wall of the activity cavity, a first driven gear wheel and a second driven gear wheel are also rotationally connected to the inner side wall of the activity cavity, the first driven gear wheel and the second driven gear wheel are connected in mesh with the transmission gear wheel, a first driven rod and a second driven rod are fixedly connected to one end of the first driven gear wheel and the second driven gear wheel respectively, and helical blades are fixedly connected to the surfaces of the first driven rod and the second driven rod. The device can rapidly stir and mix the smoke agent, avoids stratification of the smoke agent, guarantees full combustion of the smoke agent, avoids backflow of the smoke agent, rapidly forms a smoke screen, forms camouflage for a transport vehicle, and guarantees safety of the transport vehicle.

The invention discloses a crawler-type remote control camouflage protection smoke screen vehicle and a working method, the crawler-type remote control camouflage protection smoke screen vehicle comprises a chassis, a smoke generating device and a box body, the chassis is a crawler-type mobile vehicle, the smoke generating device and the box body are both arranged on the chassis, and the smoke generating device is arranged in front of the box body; the fuming device is installed on the chassis through a left-right rotating head driving device and an up-down rotating head driving device, a turbojet engine and a spraying pipe are arranged in the fuming device, and the spraying pipe is arranged at the front end of the turbojet engine; a left-right rotating head limiting switch is arranged on the left-right rotating head driving device, and an up-down rotating head limiting switch is arranged on the up-down rotating head driving device; a smoke master control system is arranged in the box body, and the smoke generating device, the moving mechanism, the left-right rotating head driving device and the up-down rotating head driving device are all connected with the smoke master control system. The problems that an existing smoke screen vehicle is low in rapid transfer capacity on complex terrains and cannot rapidly adapt to environmental changes are solved.

The utility model provides a slitting and bending device for producing a smoke barrier vertical wall, which comprises a machine table, a cutting mechanism is arranged on the machine table, the cutting mechanism comprises a module seat and a slitting assembly, a bearing frame is arranged on one side of the machine table, the bearing frame is provided with a hollow part, a plurality of sliding roller parts distributed at intervals are arranged on the hollow part, and a bending assembly is arranged on the bearing frame. The bending assembly comprises a second push rod component and a buffer component which are located on the two sides of the bearing frame, and the vertical wall support needing to be machined penetrates through the module base and extends to the bearing frame, so that the vertical wall support is located between a stamping part connected with the second push rod component and a material abutting plate of the buffer component; the stamping part moves to abut against the vertical wall support and bend the vertical wall support, the abutting plate plays a supporting role, the bearing frame is further provided with the cooling assembly for lubricating the vertical wall support, the vertical wall support is slit through the slitting assembly after bending is completed, and therefore bending and slitting operation on the vertical wall support is completed.

The utility model discloses a ceiling screen hidden type installation structure, and particularly relates to the technical field of ceiling screens, the ceiling screen hidden type installation structure comprises an installation frame, a fireproof plate and a fireproof frame, one side of the fireproof plate and one side of the fireproof frame extend into the installation frame, a U-shaped plate is arranged in the installation frame, one side of the U-shaped plate is fixedly connected with the fireproof plate, and the other side of the U-shaped plate is fixedly connected with the fireproof frame. The front end and the rear end of the U-shaped plate are fixedly connected with rotating shafts, the ends, opposite to each other, of the two rotating shafts are movably connected with the mounting frame through bearings, and a moving assembly is arranged between the fire stopping frame and the U-shaped plate. Smoke can be prevented from diffusing in a building without hindrance through the fireproof plate and the fireproof frame, the stepping motor works to drive the first lead screw to rotate so as to drive the fireproof frame to move horizontally, the distance between the fireproof frame and the U-shaped plate is adjusted according to requirements so that the fireproof plate and the fireproof frame can be hidden and stored conveniently, operation is easy, and practicability is high. And the length of the fireproof plate is convenient to adjust.

The utility model belongs to the technical field of ceiling screens, and particularly relates to a vertical lifting type special-shaped ceiling screen which comprises a mounting frame, a movable bottom plate is arranged at the bottom of the mounting frame, a folding and unfolding mechanism is arranged between the interior of the mounting frame and the top end of the movable bottom plate, and an L-shaped plate is fixedly connected to the bottom end of the movable bottom plate. A telescopic auxiliary mechanism is arranged between the top end of the L-shaped plate and the rear end of the mounting frame, and a plurality of scrap vibration auxiliary mechanisms are arranged in the telescopic auxiliary mechanism. The telescopic auxiliary mechanism and the scrap vibration auxiliary mechanism can drive a plurality of pairs of movable protruding rods to repeatedly make contact with and collide with the inner walls of the movable protruding rods in the telescopic process of the second frame body, the third frame body, the fourth frame body and the movable straight plate, vibration is generated and conducted to fireproof rolling cloth, and the fireproof rolling cloth is wound. Therefore, particles attached to the surface of the fireproof rolling cloth can be vibrated off under the vibration effect, the fireproof rolling cloth is not prone to being abraded due to extrusion and friction of the particles during rolling, and therefore the effects of being convenient to clean and long in service life are achieved.

The utility model provides a kind of smoke generator using two-stage cyclone air atomization nozzle, belong to smoke generator technical field, the smoke generator includes micro turbojet engine nozzle and is arranged at the smoke nozzle of micro turbojet engine nozzle export side, the inside of smoke nozzle is provided with atomizing device, the outlet of atomizing device and the outlet of smoke nozzle are set same direction;When working, micro turbojet engine is used as smoke power source, high temperature high pressure high-speed airflow generated from micro turbojet engine turbine export flows out from micro turbojet engine nozzle and enters from smoke nozzle import, smoke agent enters atomizing device, atomizing device is fully atomized after smoke agent and is discharged into smoke nozzle, and after atomization, smoke agent and airflow are fully mixed and are discharged from smoke nozzle outlet, and large-scale smoke screen is formed in short time, solve the problem that existing high-power smoke generator directly forms smoke screen due to smoke agent not passing through atomization, reduce smoke effect, cause smoke agent waste.

The present application provides a kind of unmanned aerial vehicle cluster cooperative smoke dispatching method for maximizing smoke coverage, solve the technical problems of low smoke diffusion prediction accuracy, poor unmanned aerial vehicle cluster cooperation, weak dynamic adaptability of scheduling strategy and difficult to maximize coverage in existing method.The present application includes the following steps: step 1, collect real-time operation data and environment data of smoke unmanned aerial vehicle and pretreat;Step 2, improve ReTUNet model, define the improved ReTUNet model as IReTUNet model, predict smoke diffusion state using IReTUNet model, output smoke concentration distribution matrix, calculate smoke coverage based on the matrix and identify coverage blind area;Step 3, improve IA * algorithm, optimize its heuristic function;Through the improved IA * algorithm, the optimal scheduling strategy is output, which guides the unmanned aerial vehicle to execute the smoke task.

The application relates to the field of unmanned aerial vehicle confrontation, and discloses a dynamic shielding launching method and system of an unmanned aerial vehicle smoke screen jamming bomb, which comprises the following steps: three-dimensional situation analysis is performed on the terrain undulation, meteorological shear layer, radar and photoelectric reconnaissance source distribution in a task airspace, a threat accessibility density field is generated, and a mobile sensitive section is divided; a back-stepping calculation is performed on the current flight attitude, heading bias and power margin of the unmanned aerial vehicle, a shielding and flight path superposition control parameter set is formed; trial calculation is performed on each launching time and release height, an overlapping interval of smoke screen formation and line-of-sight blocking is determined, and a continuous misleading candidate launching node is formed; the node is mapped to a preset avoidance route library, geometric deviation and time dislocation between a real avoidance route and a virtual induced flight path are compared, and a complete mobile instruction chain is formed; and according to the mobile instruction chain, real-time wind field return data and target tracking beam steering trend, a cooperative avoidance execution instruction is output. The application has the advantage of improving shielding continuity.

The invention discloses a smoke screen type laser beam line sweeping warning device which comprises a laser generating assembly and a smoke screen generating assembly, the laser generating assembly is installed on a tower on one side of a road, and the smoke screen generating assembly is installed on a tower on the other side of the road; the laser generation assembly comprises a laser generation device and a first solar energy storage device, and the smoke screen generation assembly comprises a smoke screen generation device, a smoke screen guide pipe, a reflective mirror and a second solar energy storage device. According to the device, laser generated by the laser generating assembly forms a laser strip in an area below a low vertical arc point of the overhead conductor, and the smoke screen is generated by the smoke screen generating assembly, so that the formed laser strip is clearly displayed, a visual warning effect is generated for a driver passing through a road, and the driver of a passing vehicle is reminded of existence of an obstacle at the high altitude in front of the vehicle; the safety problem caused by wire contact and the like is avoided; and meanwhile, the warning device adopts the laser strip for warning, so that the stability is good, and the reliable and effective operation of the device is ensured.

The application discloses a method and device for evaluating the effect of a terahertz band smoke screen jamming, and belongs to the field of terahertz imaging. A long-distance terahertz band smoke screen jamming characteristic measuring device is designed, so that the optical path of a generation path is lengthened, a smoke box device can be placed on the generation path, terahertz waves can penetrate a real smoke screen to form an image, and the optical path difference between the generation path and a detection path is set to n times of a laser period, so that the terahertz waves and detection light can meet, and it is ensured that the terahertz waves can be detected. The imaging evaluation method can simultaneously consider the attenuation and scattering effects of the smoke screen on the terahertz waves, so that the smoke screen jamming characteristics are evaluated by using real and accurate measurement results, and the accuracy of the evaluation of the terahertz band smoke screen jamming effect can be improved.

The utility model discloses a high-strength rigid ceiling screen, and particularly relates to the technical field of ceiling screens, which comprises a titanium alloy frame, alloyed toughened glass is fixedly arranged in the titanium alloy frame, a fixing frame is arranged at the top of the titanium alloy frame, and a fixing mechanism is arranged in the fixing frame. The fixing mechanism comprises a fixing frame inserted into the fixing frame, a plurality of fixing cylinders are fixedly arranged in the fixing frame, fixing columns are slidably arranged in the fixing cylinders, and springs are arranged outside the fixing cylinders and the fixing columns in a sleeving mode. The utility model has the advantages that the operation is convenient, the inclined plate can be clamped into the fixing frame during installation to realize firm connection, the adjusting plate can control the retraction of the inclined plate during disassembly, and meanwhile, the alloyed toughened glass is combined with the fireproof fiber reinforced plate to prevent smoke from penetrating, and the reinforcing steel bars further enhance the rigidity to effectively prevent smoke from spreading; and secondly, splicing of multiple pieces of alloyed tempered glass can be achieved, and the requirements of different scenes are met.

The utility model relates to the technical field of smoke-blocking vertical walls, in particular to an automatic smoke-blocking vertical wall which comprises a smoke-blocking vertical wall body, a traction mechanism, a triggering mechanism and a sensing device. The ceiling screen main body is arranged below a bare ceiling or on a decorative ceiling; the traction mechanism is connected with the smoke screen main body and is used for adjusting the lifting of the smoke screen main body; the traction mechanism is connected with the triggering mechanism; the sensing device is detachably connected with the triggering mechanism; when the induction device is triggered, the triggering mechanism can be triggered to drive the traction mechanism to move, and lifting of the ceiling screen body is adjusted. The induction device is a liquid glass bulb or a device containing easily-melted metal. According to the automatic smoke-blocking vertical wall, after the induction device induces high-temperature gas or smoke dust and is triggered, the triggering mechanism drives the traction mechanism to move so as to control and adjust the lifting of the smoke-blocking vertical wall main body, and the induction device does not need to be networked or provide a signal for use, and can automatically react and independently work.

The present disclosure relates to a smoke screen driving mechanism control method and a smoke screen driving mechanism, the method is applied to the smoke screen driving mechanism, the smoke screen driving mechanism comprises a screw nut and a driving rod, the outer periphery of the screw nut is provided with a first magnet structure, one end of the driving rod connected with the screw nut is provided with a second magnet structure, the screw nut and the driving rod are magnetically connected, and the driving rod is used for driving the movement of the smoke screen, the method comprises the following steps: in the case that the driving rod drives the smoke screen to close, a target magnetic force is obtained, the target magnetic force is the magnetic force between the first magnet structure and the second magnet structure; the target magnetic force is compared with a preset magnetic force to obtain a comparison result, the preset magnetic force represents the resistance when the closing of the smoke screen is blocked; and the movement of the screw nut and the driving rod is controlled according to the comparison result. The present disclosure can detect whether the magnetic force between the first magnet structure of the screw nut and the second magnet structure of the driving rod is greater than the preset magnetic force, and then control the movement of the driving mechanism.

The utility model discloses a movable flexible ceiling screen in the technical field of ceiling screens, which comprises a floor body, radiation-proof cloth is arranged on one side of a smoke-proof cloth body, fire-proof cloth and aluminum silicate fiber cotton are arranged on the inner sides of the smoke-proof cloth body and the radiation-proof cloth, the radiation-proof cloth is connected to the outer surface of one side of the smoke-proof cloth body, and the fire-proof cloth is connected to the outer surface of the other side of the smoke-proof cloth body. One side of the fire-resistant cloth is connected with the smoke blocking cloth body, one side of the aluminum silicate fiber cotton is connected with the inner side of the anti-radiation cloth, the flame retardant property of the smoke blocking cloth body is improved through the anti-radiation cloth, generation of smoke can be reduced, the visibility of a fire scene can be improved, and escape and rescue are facilitated; the smoke blocking cloth body can effectively isolate a heat source through the fireproof cloth, heat conduction is reduced, heat radiation of a fire disaster to the surrounding environment is reduced, the surrounding environment and personnel can be protected, the fireproof and smoke-proof performance of the smoke blocking cloth body is improved through the aluminum silicate fiber cotton, and therefore long-term use of the smoke blocking cloth body is facilitated.

The utility model belongs to the technical field of building smoke-blocking vertical walls, and particularly relates to a smoke-blocking vertical wall mounting structure which is characterized in that a first clamping block is clamped on the front surface of smoke-isolating cloth, a limiting sliding strip is slidably connected to the outer surface of the first clamping block, a fixed block is fixedly connected to one end of the limiting sliding strip, and a second screw rod is fixedly connected to one end, away from the limiting sliding strip, of the fixed block; and the outer surface of the second screw rod is in threaded connection with a first limiting cylinder. Limiting sliding strips and screws are fixed, smoke isolation cloth is further tightened, meanwhile, the relative positions of the limiting sliding strips and first clamping blocks are adjusted, so that fixing blocks on the two sides are close to the walls on the two sides of the position needing to be fixed, first limiting cylinders are rotated, second threaded rods and third threaded rods are away from each other, and fixing plates and the walls are tightly attached, extruded and fixed; and meanwhile, a second limiting cylinder is rotated, so that a first screw rod and a fourth screw rod are far away from each other to further extrude a fixing plate, a triangular stable structure is formed, and the effects of not damaging the wall, rapidly installing and improving the stability of the device are achieved.

The utility model relates to the technical field of building construction, in particular to a ceiling screen installation device which is used for installing a ceiling screen on an indoor floor slab and comprises a first connecting structure used for connecting the ceiling screen with the indoor floor slab, the first connecting structure comprises a first connecting part and a second connecting part, the first connecting part is connected with the indoor floor slab, and the second connecting part is connected with the indoor floor slab. The second connecting part is connected with the smoke-blocking vertical wall; a cavity is formed in the first connecting part, an opening is formed in the first connecting part, and the opening is communicated with the cavity; the second connecting part comprises a connecting piece, and the connecting piece penetrates through the opening and is connected with the cavity; the connecting piece comprises a limiting part which abuts against the cavity wall of the cavity so as to prevent the connecting piece from leaving the opening. According to the utility model, the special-shaped connecting piece enters the cavity from the opening or leaves the cavity, so that the ceiling screen can be disassembled and assembled, and the ceiling screen has the advantages of simplicity and convenience in disassembly and assembly and convenience in maintenance and replacement.

This invention discloses an adaptive smoke control method and system for laparoscopic surgery. The method includes: continuously and in real-time acquiring laparoscopic video streams, energy instrument operating parameters, and smoke removal equipment operating status parameters; inputting the video streams into a spatiotemporal dual-branch smoke state network to obtain smoke density values, field-of-view occlusion rates, and smoke change rates; retrieving reference control groups from a historical record database based on surgical type, surgical steps, and smoke status; matching candidate control rules according to a multi-dimensional rule base; generating control instructions including target negative pressure, valve opening, and filtration mode by a rule base intelligent agent through fusion decision-making; executing the smoke removal operation by an embedded controller and writing the control data back to the historical record database. The method and system of this application construct a closed-loop control link of "identification-decision-execution-feedback," which can adapt to different surgical scenarios, improve the smoke removal response speed and accuracy, and ensure surgical safety and equipment stability.

The embodiment of the present application discloses a kind of to the method and system of the multi-spectral comprehensive analysis of smoke screen masking interference effect, it is related to civil air defense engineering protection technical field, can automatically evaluate the interference camouflage effect of smoke screen masking.The present application includes: obtaining the image of protected target, and the feature extraction of significant area in image is carried out, then the eigenvalue of significant area is obtained;According to the obtained eigenvalue, the interference detection probability of the protected target under different smoke screen conditions is calculated, wherein the smoke screen condition at least one smoke screen type, smoke screen type corresponds to guidance mode, the guidance mode includes: optical, laser, thermal infrared and radar guidance;The calculation result of interference detection probability is sent to designer terminal.

This utility model provides an embedded smoke chamber, comprising: a chamber body, a top cover, side plate A, and side plate B; the chamber body has a viewing window; side plates A and B are respectively sealed and installed at the openings on two opposite sides of the chamber body; light-transmitting windows are installed on side plates A and B; the top cover can be freely opened and is sealed and installed on the top of the chamber body; the top cover is provided with a quick-feeding hole and a sampling hole (air outlet), and a variable frequency fan is installed on the lower surface; the chamber body is embedded in the sample chamber of an optical property detection and analysis instrument through a pin and hole positioning structure, and the light source of the instrument is optically coaxial with the two light-transmitting windows. This utility model has a simple structure, multiple functions, and strong adaptability. It can not only realize the recovery of reusable samples, but also reduce the damage of aerosol test samples to the testing instrument, and well meet the testing and analysis needs of optical properties and particle size characteristics of smoke aerosol particles, showing good application prospects in the field of optical detection technology.

The invention discloses a rocket smoke bomb application strategy optimization method based on an SQP algorithm, and the method comprises the steps: building a rocket smoke bomb outer trajectory mathematical model, obtaining a smoke bomb trajectory equation, building a nonlinear optimization model with the minimum bomb consumption as a target function, determining a constraint condition, solving the mathematical model through a sequential quadratic programming SQP algorithm, and optimizing the smoke bomb application strategy. And obtaining an optimal feasible solution. According to the scheme, the nonlinear optimization model with minimum bullet consumption as a target function is constructed, constraint conditions can be flexibly adjusted according to whether a false target exists or not, on the premise that a true target is protected, enemy weapons can be induced to find and attack the false target, the probability of successful defense of the defense target is improved, and the defense efficiency is improved. The incoming flight weapons are effectively shielded and interfered by using the optimal number, arrangement, launching pitch angle and detonation time of smoke bombs, so that equipment resources are saved, and defense deployment and combat support with a higher cost-effectiveness ratio are realized.

This invention provides a method for recognizing dynamic smoke screen images from smoke generators. It utilizes the DPAUNet model to extract and optimize deep features from dynamic smoke screen images, and combines this with the LogSAD algorithm to accurately measure feature similarity, thus constructing a collaborative optimization mechanism for feature extraction and similarity measurement. The invention includes the following steps: Step 1: Acquire dynamic smoke screen images during the operation of the smoke generator, and preprocess the acquired images by converting the acquired color images to grayscale images; Step 2: Utilize the DPAUNet model, combined with deformable convolution and a parameter-free attention mechanism, to extract and optimize the deep latent features of the preprocessed dynamic smoke screen images, removing redundant features; Step 3: Introduce weighting factors and logarithmic transformation into the LogSAD algorithm to calculate the feature similarity between the image to be recognized and the smoke screen template image. Compare this feature similarity with a recognition threshold to determine whether the image to be recognized is a dynamic smoke screen image generated by the smoke generator.

This invention discloses a method for preparing surface-modified spherical hollow nanoshell NiS and its application, relating to inorganic non-metallic materials and their application in the field of passive interference technology. The prepared surface-modified spherical hollow nanoshell NiS can be used as a novel passive smoke screen interference material. Its particle surface is hydrophobically modified, making it less prone to agglomeration and exhibiting good flow properties, thus improving the compatibility of the product with equipment in practical applications. Its crystal configuration and unique hollow structure give it strong absorption and scattering capabilities. The nanometer thickness of the hollow spherical structure can excite the small size effect and quantum size effect of the material, and it has high extinction capabilities in the visible light and near-mid-far infrared bands. Compared with traditional smoke screen interference materials, it has great performance advantages, and the preparation process is simple, efficient, and low in cost.

The utility model relates to the field of fuming equipment, and discloses a smoke screen applying device which comprises a turbojet engine, a smoke oil pump and a spray pipe part, the smoke oil pump is communicated with the spray pipe part, the turbojet engine provides high-temperature and high-speed gas flow for the spray pipe part, the spray pipe part comprises a flared spray pipe and a tobacco tar spray pipe, and a tobacco tar ring pipe is fixedly sleeved on the outer side of the tobacco tar spray pipe. An annular cavity is formed between the tobacco tar annular pipe and the tobacco tar spraying pipe, and a plurality of nozzles communicated with the annular cavity are arranged on the inner wall of the tobacco tar spraying pipe in the circumferential direction. The smoke screen generating device is small in size and even in smoke screen.