79results about "Defensive equipment" patented technology

The invention relates to the technical field of layered products, and particularly discloses a skin material for wave-absorbing hiding and a preparation method. The skin material is of a layered structure and comprises a bionic micro-forest wave-transparent layer, a gradient transition layer, a wave-absorbing layer with a'skeleton-matrix 'dual-network structure, a reflecting layer and a heat-insulating layer which are sequentially arranged from top to bottom. A micro-cone array is arranged on the surface of the bionic micro-forest wave-transparent layer, so that broadband impedance matching is realized; the wave-absorbing layer comprises a three-dimensional ceramic skeleton and a magnetic-dielectric composite matrix filled in pores of the skeleton, and magnetic absorbents in the wave-absorbing layer are directionally arranged in the layer plane direction through a magnetic field auxiliary technology. The skin material prepared by the invention has excellent comprehensive performance of ultra-wideband wave absorption, high mechanical strength, light weight and high temperature resistance, and is particularly suitable for stealth requirements in the field of aerospace.

The present invention relates to a method for predicting the operational capability of ship systems on a watercraft after enemy action, wherein the method is carried out in three steps, wherein a ship model for the watercraft is specified, wherein the ship model is specified functional chains with the locations of components of the functional chains, wherein each functional chain has components, wherein at least one damage event and a location of the damage event are specified.

There is provided an acoustic black hole comprising: in a first axis, along a line, a variation from a first characteristic to a second characteristic to a third characteristic, wherein the acoustic black hole comprises a taper from the first characteristic to the third characteristic, and wherein the second characteristic is a deviation from the taper.

An impact barrier system (1) for deployment to a support structure for protection from an impact event, including a barrier (9) with an impact side and a shielded side. The barrier (9) is formed from at least one barrier portion (10), formed between the impact side and the shielded side of the barrier. The barrier portion (10) including a plurality of barrier layers (36), each being substantially aligned with a barrier system plane XY, and having two opposed faces, respectively facing the impact side and shielded side. The faces have a transverse axis Z, orientated substantially orthogonally to the barrier system plane Z having an outer perimeter forming an edge or edges. At least two of the plurality of barrier layers (36) are; a) at least partially overlapped about said transverse axis Z, and b) flexible.

The invention relates to the technical field of ship equipment, and particularly discloses a ship-borne equipment lifting device which comprises a ship body, an opening and closing mechanism, a first locking mechanism, a lifting mechanism, a lifting platform and a second locking mechanism. The ship body comprises a first deck and a second deck, a closed cabin is defined by the first deck and the second deck, and the first deck is provided with an opening communicated with the closed cabin; the opening and closing mechanism is arranged on the first deck; the first locking mechanism is arranged on the side, facing the second deck, of the first deck. The lifting mechanism is arranged in the closed cabin and is connected with the second deck; the lifting platform is connected with the lifting mechanism, and the lifting mechanism is used for driving the lifting platform to move in the third direction; the second locking mechanism is arranged on the side, facing the second deck, of the first deck. The device can retract into the closed cabin to be hidden when not in use, and the stealth effect and the space utilization rate of a ship are improved.

Camouflage coating systems, apparatuses, and methods described herein may include a coating deposited and bonded to a region of an external surface of an object to be camouflaged. The coating may include a plurality of stacked material arrangements deposited and bonded sequentially onto the region of the external surface and arranged to define a laterally distributed plurality of independent camouflage profiles. The coating may be configured to adjust coating emissivity at visual and IR wavelengths and to block or adjust infrared (IR) emitted by the object, thereby concealing the region of the external surface of the object from detection by a detection method in the visual, infrared, and electromagnetic regimes.

A modular maritime deployment system designed for multifunctional subsurface and surface operations, addressing a wide spectrum of maritime needs. This innovative system provides a comprehensive solution adaptable for both security applications, such as countering Uncrewed Underwater Vehicle (UUV) threats, and commercial operations, including marine cultivation and environmental monitoring. The system's modular design facilitates easy assembly, reconfiguration, and scalability to support various applications, ranging from deploying security barriers to optimizing conditions for the growth of seaweed, algae, and shellfish. It features components capable of deploying acoustic dampening materials, blast panels, and electromagnetic shielding, enhancing the versatility and utility of the system in diverse maritime environments. Integrated with advanced sensors and automated deployment mechanisms, the system ensures effective deployment and management of both surface and subsurface devices, making it an indispensable tool for modern maritime operations across commercial and security sectors.

An autonomous maritime surface vehicle (AMSV) operating in a maritime environment includes an on-board vision perception optimization system, which operates on raw image data generated by an on-board passive remove sensing system. The vision perception optimization system may optimize the raw image data based on respective entropies of sub-areas within the raw image data, e.g., by detecting sub-areas of the raw image data having lower entropy, and filtering or cropping the raw image data to include only the detected sub-areas. An on-board vision perceptor may apply one or more computer vision techniques to the optimized image data to detect presences of objects within the field-of-view of the AMSV, measure respective distances of the objects from the AMSV, detect and / or track the movements of the objects, etc. The AMSV may responsively control one or more operations of the AMSV based on the information generated from the applied computer vision techniques.

A payload re-positioning system for a maritime vehicle that includes a hull having a first portion and a second portion. The maritime vehicle includes a payload disposed within the second portion. The first portion may include an impact zone and a compressible zone. The impact zone is arranged to engage a target external to the maritime vehicle. The compressible zone is arranged to reduce the initial length of the first portion to a compressed length in response to the impact zone engaging the target external, thereby reducing a distance between the payload and the impact zone.

A floating barrier float section, and a waterfront barrier system formed from a number of connected float sections. An elongated main flotation tube has radially outwardly extending fence posts with connecting members, such as nets, between them, forming multiple longitudinal net sections about the circumference of the flotation tube, at least one of the net sections extending upwardly and forming a barrier to vessel passage. A vessel strike tends to rotate the flotation tube about its longitudinal axis, absorbing the energy from the strike and rotating the flotation tube to bring another net section into position. An underwater ballast member and a stabilizer float member may be added for additional resistance to rotation.

This invention discloses a lightweight, thin, broadband underwater sound-absorbing material, its preparation method, and its applications, belonging to the technical field of underwater sound-absorbing materials and their preparation. This invention solves the problems of existing sound-absorbing coverings used in small and medium-sized underwater unmanned equipment being too heavy and having insufficient low-frequency sound absorption. This invention uses PDMS, whose characteristic impedance matches that of water, as a substrate and modifies it with the two-dimensional nanomaterial MXene to prepare a lightweight, thin, broadband underwater sound-absorbing material. First, the abundant surface functional groups of MXene enhance the interaction with the polymer, increasing the stability of the composite structure. Second, utilizing the two-dimensional layered structure, high specific surface area, and excellent thermal properties of MXene, the thermoacoustic conversion, P-wave and S-wave conversion, relaxation, and damping losses of the PDMS matrix are significantly enhanced with almost no increase in the weight of the composite material, thereby improving its underwater sound absorption performance.

The utility model discloses an anti-pirate device for a ship. The anti-piracy device for the ship comprises a stairway, a first inclined ladder leading to a bottom deck is arranged on one side of the stairway, a second inclined ladder leading to a high deck is arranged on the other side of the stairway, a grating is hinged to the side, close to the second inclined ladder, of the stairway, a first lug plate is arranged on the side, away from the hinged end, of the grating, and a second lug plate is arranged on the bottom face of the second inclined ladder. When the first lug plate and the second lug plate are fixedly connected, the grating is fixed to the bottom face of the second inclined ladder, a third lug plate is arranged on the side, close to the first inclined ladder, of the stairway opening, when the first lug plate and the third lug plate are fixedly connected, the grating fixedly blocks the stairway opening, and a first through hole used for being connected with the second lug plate is formed in the end, protruding out of the bottom face of the grating, of the first lug plate. A second via hole used for being connected with the third lug plate is formed in the end, protruding out of the top face of the grille, of the first lug plate, and a first sheath is arranged on one side of the first lug plate around the second via hole. According to the utility model, the problem of poor protection safety in the prior art is solved.

The invention is suitable for the technical field of energy storage configuration, and provides a degaussing power supply system configuration method and device and a degaussing power supply system.The system comprises a main power supply and a flywheel energy storage device.The method comprises the steps that pulse data of needed pulses during operation of a degaussing coil are obtained; according to the preset power and the pulse data of the main power supply, determining the required energy required to be provided by the flywheel energy storage device and the dischargeable energy of the flywheel energy storage device; obtaining the target power of the flywheel energy storage device based on the difference between the required energy and the dischargeable energy and the energy required by the first pulse in the required pulses; and based on the target power and the preset power range, obtaining a configuration scheme of the flywheel energy storage device and the main power supply, so that the flywheel energy storage device and the main power supply are configured according to the configuration scheme. According to the degaussing power supply system with the configuration, the flywheel energy storage device can provide instantaneous high power, the degaussing response speed is improved, the impact of the first pulse on the main power supply and the power demand are reduced, and the power redundancy of the main power supply is reduced.

The invention provides a flexible protection armor for explosion in a ship cabin, the ship cabin and a protection method, and relates to the technical field of ship structure protection armor. The protective armor comprises a conveying pipeline and a flexible protective armor module, the flexible protective armor module comprises a bag body, the bag body is a flexible component and is internally provided with a cavity, the cavity of the bag body is communicated with the conveying pipeline, a spray valve is installed on the bag body, and the spray valve is communicated with the cavity of the bag body. The ship cabin comprises a ship cabin wall plate, the conveying pipeline is arranged on the wall plate of the ship cabin, and the bag body is unfolded. The protection method comprises the steps that the exhaust valve is opened, and liquid is conveyed into the bag body from the conveying pipeline; in the process of filling the bag body with the liquid, the bag body is gradually opened until the bag body is completely unfolded to reach a full state, and the exhaust valve is closed; the spray valve is opened, and the spray valve sprays high-speed jet mist clusters. The protective armor can be folded and unfolded, the occupied space is small, and solid-liquid coupling double-phase protection is achieved through the ejected high-speed jet flow mist cluster and the capsule body.

The present invention relates to a watercraft (10) having a trailing sonar, the trailing sonar having a tow cable region (30) and an antenna region (40), the tow cable region (30) of the trailing sonar being arranged between the watercraft and the antenna region (40) of the trailing sonar, a first submersible body (20) being arranged in front of the antenna region (40) and / or a second submersible body (20) being arranged behind the antenna region (40), characterised in that the submersible body (20) has at least one depth setting device.

An autonomous maritime surface vehicle, AMSV (20a-e, fig 1) has a passive remote sensing system 602a and excludes or does not operate any on-board active remote sensing system. The passive remote sens

The present invention discloses a flexible explosion-proof armor and a design method thereof. The design method comprises: constructing a simulation model of the flexible explosion-proof armor. The flexible explosion-proof armor comprises the following structure: an armored sandwich layer in contact with the ship's hull, a composite material layer located outside the armored sandwich layer, and a polyurea coating located outside the composite material layer. The armored sandwich layer is composed of several stacked armored units, each of which includes a composite material layer and a foamed aluminum layer. The composite material layer is formed of a carbon fiber-reinforced aluminum alloy composite material. The present invention can design and calculate different dimensional parameters of flexible explosion-proof armor with a sandwich structure, facilitating improvements in the armor's explosion and impact resistance.

An autonomous underwater vehicle (AUV) comprising one or more propulsion devices that propel the AUV, one or more sensors that generate sensor data indicative of a signature of a vessel, memory, and processing circuitry. The processing circuitry determines an underwater position at which the AUV collects the sensor data, controls the one or more propulsion devices to move the AUV to the underwater position, receives the sensor data from the one or more sensors while the AUV is at the underwater position, and stores the sensor data in the memory.

The application discloses a movable water surface and underwater integrated offshore interception system, and belongs to the technical field of marine defense. A propeller is installed on each floating body, and an upper computer is installed on each floating body. A navigation light pointing system and a high-precision inertial navigation system are arranged on the floating body, and the navigation light pointing system and the high-precision inertial navigation system are electrically connected with the upper computer installed on the floating body. A mast is arranged on the top of the floating body, a camera of a 360-degree remote omnidirectional video system on the sea and a signal antenna of a MESH self-organizing network offshore base station are arranged on the mast, and the 360-degree remote omnidirectional video system on the sea and the MESH self-organizing network offshore base station are wirelessly communicated with the upper computer. The application adopts a modular assembly design, is convenient to disassemble, replace and store and maintain, has small engineering quantity, and has high concealment and is not easy to be found. The application adopts a cylindrical floating body, a cross propeller and a double-floating body shared mooring design, and the anti-overturning ability, the maneuverability and the offshore stability of the system are improved.

Autonomous maritime surface vehicles (AMSVs) are manoeuvred sideways 682 between first and second positions 684, 672 relative to objects 676 to create a synthetic baseline for the AMSV. Radiation received from the objects is sensed by sensing systems of the AMSVs. A perception algorithm is applied to data representing the radiation to detect objects 676 indicated by the data based on a synthetic disparity resulting from the synthetic baseline for the AMSVs. An orientation, location or speed, control instruction for at least a subset of the AMSVs is determined based upon information determined about the detected objects 676. Fig 6K

An apparatus for disabling of motor vessels moving in a waterbody. An energetic (i.e. explosive), as part of a floating assembly, is brought into contact with a motorized marine vessel's propulsion unit(s) and / or steering system, referred to generally as the underwater drive unit, due to the vessel's own motion relative to a floating line. The energetic then detonates and disables the underwater drive unit, thereby halting progress of the vessel while not harming any occupants thereof.

The invention provides a boarding assembly (3) for maritime boarding actions,—wherein a device carrier (307) is arranged to be erected, while attached via a flexible joint (303) to a support structure of a marine vessel, so as for an engagement device (305) attached to the device carrier (307) to engage a part of a target marine vessel to be boarded,—wherein upon such an engagement an elongated flexible element (322), e.g. a rope or a wire, can be pulled through a support device (325), e.g. a pulley block, of a holding assembly (321) mounted to the engagement device, so as to pull an elongated climbing device (323), e.g. a rope ladder, attached to the elongated flexible element (322), up towards the engagement device (305),—wherein the holding assembly (321) comprises an engagement mechanism (328) arranged to engage and retain the climbing device.

The utility model belongs to the technical field of storage and storage, and particularly relates to a surface type folding fence and pirate climbing prevention equipment. The surface type folding fence comprises at least three layers of fence surfaces, each layer of grid surface comprises at least three vertical rods, and the adjacent vertical rods are connected through cross beams; the cross beam is concavely and convexly arranged along the direction vertical to the grid surface so as to respectively form an arch opening around the back of the vertical rod and an arch back around the front of the vertical rod; when the grid faces are overlapped to enable the vertical rods to be sequentially arranged on the same face in a staggered mode, the cross beams on the grid faces are sequentially arranged from top to bottom in the length direction of the vertical rods, at the moment, the notch width of the arch opening is sequentially narrowed from top to bottom, and the groove back width of the arch back is sequentially widened from top to bottom. According to the utility model, the stacking height can be minimized while the self basic performance is achieved, and the convenience of storage and transportation operation is ensured.

Disclosed is a method for combating a torpedo, having the following steps: a) detecting the torpedo; b) tracking a trajectory of the torpedo; c) navigating a combating projectile to a specified distance from the torpedo; and d) generating a detonation by means of the combating projectile (20) in order to combat the torpedo when the combating projectile (20) has reached the specified distance from the torpedo.

The bulletproof window for the ship comprises a window frame, a pressing plate and a glass assembly, the window frame is fixedly connected with a surrounding wall, the window frame and the pressing plate are matched to form a notch used for installing the glass assembly, and the glass assembly comprises borosilicate glass, a PC plate and a plurality of pieces of float glass. The borosilicate glass is located at the outer side end of the window frame, the PC board is located at the inner side end of the window frame, and the plurality of pieces of float glass are located between the borosilicate glass and the float glass. According to the bulletproof window, high-strength borosilicate glass is used on the bullet facing face on the outdoor side to enable bullets to deform, conventional float glass is used for blocking other transition layers, a high-toughness PC plate is used on the bullet backing face on the indoor side to prevent fragments from sputtering after the glass is damaged, and the bulletproof window has the advantage of being good in bulletproof effect.

Sustainable method and environmentally-friendly device for improved survey data acquisition by providing a vessel for use in subsea surveying, at least one lifting hydrofoil (10), a method of acquiring subsea survey data, a method of producing a vessel, and the use of a vessel. Unlocking insights from Geo-Data, the present invention further relates to improvements in sustainability and environmental developments: together we create a safe and liveable world.

The invention discloses a methanol dual-fuel marine anti-pirate quick blocking device for an outer stairway of a residential area, and belongs to the technical field of marine devices. Through the hinged design of the grating structure, the stairway edge and the stairway side edge, the quick release structure is combined to achieve quick overturning of the grating, linkage of the buckle structure and the unlocking structure is matched, the requirements for personnel passing and escape and fire fighting access functions required by SOLAS specifications can be met in the daily state, high-strength blocking of the stairway can be achieved through quick operation when attacks happen, and the safety of the stairway is improved. Pirates are effectively prevented from invading; the grid structure adopts the design of the steel grid and the reinforcing ribs, the protection strength is guaranteed, the locking reliability and the operation convenience are both considered through the unlocking mechanism that the buckle driven by the spring and the connecting rod are in linkage, and the whole structure meets the protection requirements of daily passing convenience, international safety specification conformity and pirate prevention rapid blocking.

The application relates to the technical field of layered products, and particularly discloses a skin material for wave absorption and hiding and a preparation method. The skin material has a layered structure and comprises, from top to bottom, a biomimetic micro-forest wave-transparent layer, a gradient transition layer, a wave-absorbing layer with a'skeleton-matrix' double-network structure, a reflecting layer and a heat-insulating layer; the biomimetic micro-forest wave-transparent layer is provided with a micro-pyramid array on the surface, so that wide-frequency impedance matching is realized; the wave-absorbing layer comprises a three-dimensional ceramic skeleton and a magnetic-dielectric composite matrix filled in the pores of the skeleton, and the magnetic absorbent in the wave-absorbing layer is arranged in the layer plane direction through magnetic field auxiliary technology. The skin material prepared by the application has excellent comprehensive properties of super-wide-frequency wave absorption, high mechanical strength, light weight and high-temperature resistance, and is particularly suitable for stealth requirements in the field of aviation and aerospace.

The present disclosure provides a wide-based sub. Further, the wide-based sub may include a hull comprising a wide-based structure. Further, the wide-based sub May include a deck which may be configured for facilitating performance of an activity associated with the wide-based sub. Further, the activity includes one or more of a storage of an asset and a maritime operation associated with the wide-based sub. Further, the wide-based sub may include a propulsion device which may be configured for propelling the wide-based sub in relation to each of the underwater environment and the afloat environment. Further, the wide-based sub may include a missiles storage and firing module configured for automatic firing and reloading of a plurality of missiles in a range of 10 to 1000.