314results about "Life-rafts" patented technology

The invention discloses an assembled shell and a flight life buoy using the same, and relates to the technical field of unmanned aerial vehicles. The shell comprises a fuselage part and a wing part which are detachable, the fuselage part and the wing part are connected through a main rod and an auxiliary rod, the overall weight of the shell is effectively reduced, a mounting groove used for mounting an electronic speed regulator is further reserved in the fuselage part, and an avoiding opening communicated with the mounting groove in an aligned mode is reserved in the wing part. Therefore, when the shell is used for the flying life buoy, the air flow formed in the wing part can effectively reduce the temperature of the electronic speed regulator, and the running stability of the flying life buoy is improved.

The utility model discloses a portable light folding hanging basket for rescue, which relates to the technical field of rescue equipment and comprises a central seat, six annularly distributed connecting rods are rotatably connected to the side surface of the central seat, and bottom plates are rotatably connected to two sides of the six connecting rods. The sides, close to each other, of every two adjacent bottom plates are rotationally connected together, the ends, away from the center base, of the six connecting rods are fixedly connected with vertical rod mechanisms, the positions, close to the bottoms, of the outer sides of the six vertical rod mechanisms are fixedly connected with fixing mechanisms, and each vertical rod mechanism comprises a base. According to the portable light folding hanging basket for rescue, the fixing sleeve is pulled upwards, so that the supporting rod can rotate on the fixing base, when a person needing to be rescued is placed in the hanging basket by rescue personnel, the side face of the overall structure does not affect entering of the person needing to be rescued, and the rescue personnel can conduct rescue operation conveniently.

The invention relates to a drag reduction and deicing structure of an ice surface rescue unmanned aerial vehicle and the ice surface rescue unmanned aerial vehicle, and discloses a deicing structure which is used for cleaning broken ice on an ice surface or a water surface through cooperation of an ice breaking cone and snow removing sawteeth, can reduce the sliding resistance of the unmanned aerial vehicle and improves the ice surface rescue efficiency. The ice breaking machine is characterized by being composed of a machine body, a machine frame, a machine frame head, a machine frame tail, a machine frame middle part, an ice breaking plate, an ice breaking cone, a hanging plate, an air cylinder, a fixing plate and a fixing block, the machine frame comprises the machine frame head, the machine frame tail and the machine frame middle part, the two ends of the machine frame middle part are correspondingly arranged at one end of the machine frame head and one end of the machine frame tail respectively, and the machine frame is arranged on the top face of the machine body. The machine body is of a hollow structure, the length of the machine body is smaller than that of the machine frame, the width of the machine body is smaller than that of the machine frame, fixing plates are correspondingly arranged on the two side faces of the machine body respectively, fixing blocks are correspondingly arranged on the two sides of the bottom face of the tail of the machine frame respectively, and one end of a hanging plate is arranged on the bottom faces of the fixing blocks.

The invention relates to sea and air three-dimensional unmanned rescue equipment which comprises a large-load unmanned aerial vehicle platform, a sea life rescue platform, a suspension assembly and a flexible buoyancy platform which are connected in sequence. The heavy-load unmanned aerial vehicle platform is fixed to the upper portion of the offshore life rescue platform in a rigid connection mode. The suspension assembly comprises a main ship body and a multi-body buffer structure connected with the main ship body and the flexible buoyancy platform. The multi-body buffering structure comprises a front arch, a first rear arch, a second rear arch, a first rigid sliding plate, a second rigid sliding plate, a first rocker arm type spring damping vibration attenuation module and a second rocker arm type spring damping vibration attenuation module. The first rigid sliding plate and the second rigid sliding plate are connected with the flexible buoyancy platform. Compared with the prior art, cooperation of safe take-off and landing from a mother ship, hovering search, high sea condition stable operation and flexible rescue is achieved through the four-module integrated design; rescue equipment can be quickly replaced, diversified rescue requirements are met, operation is flexible, and taking-off and landing are safe and convenient.

The utility model discloses an inflatable life raft capable of turning over stably, and relates to the technical field of life rafts, the inflatable life raft capable of turning over stably comprises a life raft base and an annular enclosure air cushion installed on the surface of the top end of the life raft base, the annular enclosure air cushion is provided with an inlet, and the inlet is provided with an air inlet. An outer side air cushion is installed on the outer side surface of the life raft base, a pull rope is installed on the surface of one end of the outer side air cushion, a plurality of handle belts are installed on the outer side surface of the annular fence air cushion, and the surface of one end of the outer side air cushion is in movable contact with the surface of one end of the annular fence air cushion. People falling into the sea can conveniently enter the life raft base, meanwhile, overturning and shaking of the life raft base are reduced, the pull rope is matched with the handle belt, people falling into the sea can conveniently enter the life raft base from the entrance, and the life raft base is matched with the balance weight ball. The life raft base provides stable force in the overturning and shaking process, and the effect that a person is stabilized in advance on the life raft base is achieved.

The utility model relates to the technical field of flood rescue equipment and equipment, and discloses a modularized flood rescue stretcher which comprises a motorboat, a stretcher body is movably installed on the inner side of the motorboat, buckles are arranged on the two sides of the inner wall of the motorboat and located on the top of the stretcher body, and a safety belt is arranged on the inner wall of the motorboat and located between the buckles on the two sides. Bandages are arranged in the middles of the two sides of the motorboat, and searchlights are fixedly installed on the two sides of the top of the motorboat. According to the modularized flood rescue stretcher, the detachable stretcher is arranged, so that the stretcher is quickly connected to the center of a lifeboat through four buckles (two buckles are arranged on each of the two sides). The detachability of the stretcher system further allows flexible replacement and maintenance of the stretcher, the wounded person can be carried away in time during rescue, the next stretcher is replaced for continuous rescue, and a more convenient wounded person transfer mode is provided. And by arranging a safety belt, the safety of the wounded is further improved, and the practicability of the device is effectively improved.

The invention belongs to the technical field of rescue unmanned aerial vehicles, and particularly relates to a switching type flight lifesaving device which comprises an unmanned aerial vehicle body, a mounting part is arranged in the unmanned aerial vehicle body, and the mounting part is electrically connected with the interior of the unmanned aerial vehicle body; a plurality of ejection parts are annularly arranged in the mounting part; a locking part is arranged in the unmanned aerial vehicle main body, and the locking part can fix the mounting part and stabilize the mounting part in the unmanned aerial vehicle main body; the ejection part comprises a fixing part, an elastic extrusion part, an ejection bin, a connecting base, a fixing base, an elastic reset part and a connecting rope, the middle of the fixing part is rotationally arranged in the mounting part, one end of the elastic extrusion part is fixedly connected with the lower end of the fixing part, and the other end of the elastic extrusion part is fixedly connected with the mounting part. Multi-angle lifesaving material delivery is achieved through the annular array ejection structure, rapid function switching is supported by the modular installation part, the rescue range, task flexibility and equipment stability are remarkably improved, and complex emergency rescue requirements are met.

The invention belongs to the technical field of rescue equipment, and particularly relates to a foldable flight lifesaving device which comprises a shell, a plurality of partition plates are arranged in the shell, and the interior of the shell is divided into a buoyancy bin, a plurality of storage bins and a plurality of air inlet bins through the partition plates. The multiple storage bins are located on the two sides of the interior of the shell correspondingly, the cross section of each storage bin on the horizontal plane is in a U shape, the multiple air inlet bins are located at the two ends of the interior of the shell correspondingly, and the expansion assemblies are assembled in the storage bins and comprise air bags and air valves. The high-pressure micro air pump is started to inject air into the air bag, the air bag in the folded state is converted into the stretching state, the air bag in the stretching state and the shell can form a temporary danger avoiding area, people falling into water climb on the temporary danger avoiding area to wait for rescue, and the temperature loss phenomenon caused by long-time soaking in low-temperature water is avoided.

The invention relates to a multi-domain collaborative ocean emergency rescue method, which solves the technical problems of short endurance, small operation range and low recognition accuracy of persons in distress when an unmanned aerial vehicle or an unmanned ship or an underwater robot is adopted to carry out a search and rescue task in the prior art, and combines the unmanned aerial vehicle, the unmanned ship and the underwater robot for mutual cooperation. The unmanned aerial vehicle carries out investigation traversal in the air to find a search and rescue target, the unmanned aerial vehicle gets close to the search and rescue target and sends the position information of the target to the control center, the unmanned ship sails to the position of the target, the at least two underwater robots are transferred along with the unmanned ship, and the unmanned ship controls the at least two underwater robots to work cooperatively. The method can be widely applied to deep ocean emergency rescue, and an'air-sea-submerged 'multi-domain cooperative new normal form is formed.

The utility model discloses a foldable rescue hanging basket frame which comprises an upper frame, a front supporting frame and a rear supporting frame. The upper frame is characterized in that a front frame body and a rear frame body are hinged through pipe joints, a locking mechanism is further arranged on the upper frame, and the front supporting frame is hinged to the front frame body of the upper frame through a first hinge shaft. A front locking mechanism capable of keeping the front support frame upright relative to the front frame body of the upper frame is arranged between the front support frame and the front frame body of the upper frame; the rear supporting frame is hinged to the rear frame body of the upper frame through a second hinge shaft, and a rear locking mechanism capable of enabling the rear supporting frame to be kept upright relative to the rear frame body of the upper frame is arranged between the rear supporting frame and the rear frame body of the upper frame. The folding chair has the advantage of being capable of being folded and stored.

The invention discloses an unmanned ship and unmanned aerial vehicle combined three-dimensional search and rescue device and method. The unmanned ship and unmanned aerial vehicle combined three-dimensional search and rescue device comprises an unmanned aerial vehicle and an unmanned ship. The unmanned aerial vehicle comprises a fuselage, a support, a camera and a laser radar, the support is arranged at the bottom of the fuselage, and the camera and the laser radar are arranged in the front of the fuselage. The unmanned ship comprises a ship body, a pressure sensor, an electromagnet and an electromagnet controller, a connecting port is formed in the upper surface of the ship body, the pressure sensor and the electromagnet are embedded in the connecting port, and the electromagnet controller is arranged in the ship body and electrically connected with the electromagnet. Wherein the bracket of the unmanned aerial vehicle is detachably connected with the connecting port of the unmanned ship. Through the detachable connection design of the unmanned aerial vehicle and the unmanned ship, the unmanned ship can be precisely thrown to a water falling point, and the rescue response speed and efficiency are improved; a multi-mode sensing system is matched with a target recognition algorithm, so that a target can be quickly locked under a complex sea condition; the two work cooperatively, and the problem of insufficient rescue efficiency is effectively solved.

The invention discloses a rescue method and system based on an unmanned aerial vehicle, electronic equipment and a storage medium, and relates to the field of unmanned aerial vehicle water lifesaving. The method comprises the steps that a distress signal sent by image processing equipment is received, the image processing equipment is arranged in a water area, and the distress signal is generated when the image processing equipment recognizes a drowning person; calculating a position area to which the drowning person belongs according to the distress signal, planning a path according to the position area, and controlling the unmanned aerial vehicle to travel according to the path; after it is detected that the unmanned aerial vehicle arrives at the position area, state information of each drowning person is collected through the unmanned aerial vehicle; determining the rescue priority of each drowning person and a corresponding rescue tool according to the state information of each drowning person; the unmanned aerial vehicle is controlled to arrive above the position of the drowning person with the highest rescue priority, and the unmanned aerial vehicle is controlled to put a corresponding rescue tool; when it is determined that the drowning person makes contact with the rescue tool, the unmanned aerial vehicle is controlled to put a traction rope for rescue. The rescue efficiency can be improved.

The utility model provides rescue unmanned aerial vehicle equipment. The rescue unmanned aerial vehicle equipment comprises an unmanned aerial vehicle main body and a throwing assembly, the at least two throwing assemblies are arranged on the two sides of the abdomen of the unmanned aerial vehicle body correspondingly. Wherein the throwing assembly comprises a belly connecting plate, and the belly connecting plate is fixed to the belly of the unmanned aerial vehicle body through bolts; according to the marine rescue unmanned aerial vehicle equipment, through the design of the integrated throwing assembly, the structure of the throwing device is remarkably simplified. Specifically, a gear and a tooth surface sliding pin meshed with the gear are directly driven by a steering engine to slide on a sliding pin track, so that the accurate control of the throwing action is realized. According to the design, a complex mechanical transmission chain in a traditional throwing device is reduced, the operation complexity is reduced, and the throwing efficiency is improved. Meanwhile, due to the fact that the structure is simplified, maintenance and repair work becomes simpler and more convenient, the fault risk caused by the complex structure is reduced, and the reliability of rescue tasks is improved.

An inflatable raft, having: a base, a sidewall, front and back ends, first and second opposite sides; a first tubular member extending between the sides to define a first arch; and a second tubular member extending from the back end to the first tubular member at a weld joint to define a second arch, at the weld joint the first tubular member has a first diameter, the second tubular member has, end to end, a second diameter that is smaller than the first diameter, and adjacent to the weld joint, the first tubular member has a third diameter that is the same as the second diameter.

The invention discloses a material fixing device for unmanned aerial vehicle hoisting, and relates to the technical field of unmanned aerial vehicle hoisting, the material fixing device comprises a damping structure, and the damping structure comprises a control seat fixedly connected to the bottom of a data control box, and a material fixing device fixedly connected to the control seat, the hydraulic cylinders are arranged on the surface of the control base in a circumferential mode. The hydraulic rods are connected to the hydraulic cylinders in a sliding and telescopic mode. The fixing base is fixedly connected to the ends, away from the hydraulic cylinders, of the hydraulic rods. The three spacing plates are fixedly connected to the surface of the fixing base. The two double-shaft motors are symmetrically arranged, and the inner shafts are fixedly connected to the inner sides of the double-shaft motors and rotationally connected to the partition plates. Through circling flight of the unmanned aerial vehicle and the stabilizing effect of the damping assembly, the releasing assembly can ensure that the life buoy is accurately released above a target area, and the rescue efficiency is greatly improved.

According to the ice surface rescue unmanned aerial vehicle, the unmanned aerial vehicle is driven by a driving assembly to fly to the water falling position of a person falling into water, a pull rope assembly is matched with a sliding assembly to drive the person falling into water to return to a supporting platform, and ice surface rescue is achieved. The unmanned aerial vehicle is characterized in that the unmanned aerial vehicle is composed of a flying assembly, a driving assembly, a pull rope assembly, a storage assembly and a sliding assembly, the flying assembly is composed of a rack, a rack head, a rack tail, a rack middle part, rack wings, a floating body, a first screw, an L-shaped fixing plate, an illuminating lamp and a first handle, and the rack comprises the rack head, the rack tail and the rack middle part; the two ends of the middle of the rack are correspondingly arranged at the head end of the rack and the tail end of the rack respectively, the rack is of a hollow structure, the edge of the rack is of an arc-shaped inward-concave structure, the four corners of the rack are correspondingly provided with rack wings respectively, and the rack wings are of arc-shaped structures.

Provided is a catching device for surface rescue based on an aircraft platform, and a surface rescue method. The catching device for surface rescue based on the aircraft platform includes a throwing mechanism, a flying mechanism, a recovery mechanism, an automatic control module, and a catching net. Both the throwing mechanism and the recovery mechanism are disposed on the flying mechanism, and the automatic control module automatically controls the throwing mechanism and the recovery mechanism. After the flying mechanism flies above a drowning person, the throwing mechanism is configured to throw the catching net towards the drowning person. After the catching net nets the drowning person, the recovery mechanism can drive a bottom of the catching net to close and lift the catching net upwards to approach the flying mechanism, and the flying mechanism is configured to drag the drowning person to a safe location.

The invention relates to an ice surface rescue unmanned aerial vehicle accumulated snow prevention structure and an ice surface rescue unmanned aerial vehicle, and discloses the snow prevention structure which can guide accumulated snow or crushed ice through cooperation of a conical top and an inclined-plane-shaped intercepting net, reduce attachment and accumulation of the accumulated snow or the crushed ice on the intercepting net, reduce abrasion of flying fan blades and improve the ice surface rescue efficiency. The device is characterized in that the device is composed of rack wings, air guide through holes, a conical top, inclined supporting rods, an intercepting net, a ring bottom, threads, thread grooves and fixing rings, the rack wings are correspondingly provided with the air guide through holes, the top faces of the rack wings are correspondingly provided with the fixing rings, the edges of the inner side faces of the fixing rings are connected with the edges of the air guide through holes, and the conical top is provided with the inclined supporting rods. A threaded groove is formed in the side face of the fixing ring, threads are formed in the inner side face of the ring bottom, the threads correspond to the threaded groove, the inner side face of the ring bottom is in threaded connection with the side face of the fixing ring in the mode that the threads are matched with the threaded groove, and the conical top is located over the air guide through hole.

A personal life-saving system including an inflatable life- saving appliance L and configured to be attached to a wearer's leg. The system may include one or more leg straps (26A, 26B) for attachment to the wearer's leg (14). Two elongate spaced apart compressed gas containers may be arranged to extend long the wearer's leg for inflating a life-saving appliance. An activation system may activate the plurality of compressed gas containers simultaneously to inflate the life-saving appliance. The compressed gas containers and the life-saving appliance may be provided in an inner and outer casing.

The invention provides a water rescue method and system based on a radar camera, relates to the field of water rescue, and solves the technical problems of low drowning accident monitoring efficiency and poor prevention and control effect in the prior art. The method comprises the following steps: a front-end sensing module is used for monitoring a water area, acquiring real-time position information of a suspicious target when the suspicious target is detected, and sending the real-time position information to a rear-end processing module; the rear-end processing module is used for receiving the real-time position information of the suspicious target and is linked with the high-point camera to focus the suspicious target; judging whether the suspicious target is a person falling into water; if yes, a rescue instruction is issued to the on-site disposal module; if not, the rescue instruction is not sent; and the rescue module is used for planning an optimal navigation path to go to the position of the drowning person for rescue after receiving the rescue instruction. The water rescue device is used in the water rescue process.

An intelligent life buoy unmanned aerial vehicle comprises an unmanned aerial vehicle body and a life buoy which are connected through a rope and a claw buckle, the unmanned aerial vehicle body comprises an intelligent chip, a waterproof rotor wing, an infrared camera, a microphone, a GPS positioning module, a wireless communication module and a remote controller, and the intelligent life buoy unmanned aerial vehicle is characterized by adopting the following working steps that 1, the intelligent life buoy unmanned aerial vehicle body recognizes the position of a drowning person; dragging the life buoy to be close to the drowning person in a vertical posture by using a rope; 2, the intelligent life buoy unmanned aerial vehicle recognizes the face position of the drowning person, a rope is dragged in the opposite direction of the face position of the drowning person, and the life buoy is controlled to turn downwards around the head of the drowning person to sleeve the drowning person; 3, the intelligent life buoy unmanned aerial vehicle drags the rope and the life buoy to drag the sleeved drowning person back to the shoreside in the upward posture. The life buoy can be sleeved on a drowning person, and by means of buoyancy of the life buoy and lift force of the unmanned aerial vehicle, the drowning person can be provided with a stronger escape ability by means of the buoyancy of the life buoy and the lift force of the unmanned aerial vehicle.

The utility model belongs to the technical field of unmanned aerial vehicles, and particularly relates to an unmanned aerial vehicle for a marine rescue ship, which comprises a vehicle body, a shell and a box body are respectively arranged at the bottom of the vehicle body, a first gear is arranged on the inner wall of the shell, and a driving part for driving the first gear to rotate is arranged on the outer wall of the shell. The inner wall of the first gear is connected with a second gear in an engaged mode, and the inner walls of the first gear and the second gear are rotationally connected with arc plates correspondingly. The reel is arranged in the box body, and a safety rope is wound on the reel; the fixing assembly is arranged in the top of the box body in a sliding mode. According to the life buoy throwing device, the driving motor works to drive the first gear and the second gear to rotate, so that the two arc plates are far away from each other, the life buoy can be thrown to a trapped person, the safety rope connected with the life buoy can be recycled by arranging the reel, then the life buoy is recycled, repeated throwing operation is carried out, and the error-tolerant rate is increased.

The invention discloses unmanned aerial vehicle quick life buoy putting equipment which comprises an unmanned aerial vehicle body, a cable sliding descending assembly, a rotary adjusting mechanism, a magnetic adsorber and a life buoy, a mounting groove is formed in the bottom of the unmanned aerial vehicle body, and the cable sliding descending assembly is mounted in the mounting groove; the rope sliding descending assembly comprises a shell, a signal receiver, a controller, a first storage battery, a first motor, a winding rod, a rope and a locking device, the signal receiver, the controller, the first storage battery and the locking device are all installed in the shell, the signal receiver is connected with the controller through a circuit, the controller is connected with the first storage battery through a circuit, and the locking device is connected with the second storage battery through a circuit. The first storage battery is connected with the first motor through a circuit, the power output end of the first motor is connected with the winding rod, the upper end of the rope is wound around the winding rod, a penetrating hole is formed in the bottom of the shell, the rope penetrates through the penetrating hole, and the lower end of the rope is connected with the rotary adjusting mechanism. According to the designed unmanned aerial vehicle rescue device, rapid remote rescue treatment can be carried out on the drowning person, and the rescue efficiency is improved.

The invention relates to a water rescue system and method based on combination of a wing-in-ground-effect ship and an unmanned ship, and belongs to the technical field of water rescue. The unmanned surface vehicle and materials are remotely conveyed to a rescue area at a high speed through the wing-in-ground-effect vehicle; the unmanned ship arrives at the drowning person to execute accurate rescue, and the unmanned ship further has the manned capacity; wherein the unmanned ship and the wing-in-ground-effect ship are linked through a communication system, the wing-in-ground-effect ship airdropped lifesaving equipment, and the unmanned ship completes target salvage and returns. According to the invention, the rescue response efficiency can be improved, and the problems of slow response, poor environmental adaptability and insufficient accuracy of water rescue are systematically solved.

The invention relates to a sea rescue water-air unmanned aerial vehicle. An air inflation assembly and an air bag are arranged in an air bag containing cabin of an unmanned aerial vehicle body. A cabin door assembly used for opening or closing the air bag containing cabin is arranged on the unmanned aerial vehicle body. The bottom of a mounting base plate of the unmanned aerial vehicle body is rotationally connected with an H-shaped frame, and a propeller assembly is coaxially arranged in a vertical flow guide cylinder of the H-shaped frame. During flight, the H-shaped frame attitude adjusting assembly is used for keeping the H-shaped frame and the vertical guide cylinder in a horizontal state; when moving on the sea surface, the H-shaped frame posture adjusting assembly is used for keeping the H-shaped frame and the vertical guide cylinder in a vertical state so as to be in contact with seawater to generate propulsive force; the fuselage can be matched with the air bag on the sea surface to serve as temporary life-saving equipment, and is not limited by distance due to the fact that the fuselage can fly to the to-be-rescued person; on the sea surface, the propeller assembly which originally provides flight power is used as a spiral propeller, the unmanned aerial vehicle can move on the sea surface, accurate throwing can be achieved, and water and air dual-purpose searching and rescuing are achieved.

The portable rescue device for the seaborne wounded person falling into water comprises a foldable air bag, a foldable stretcher, a hoisting mechanism and a positioning system. According to the foldable air bag, an air inflation assembly communicated with the interior of an air bag body and an air inflation pull rope connected with the air inflation assembly are fixed in a containing groove in the air bag body, and stretcher connecting pieces are fixed to the four corners of the air bag body. The foldable stretcher comprises a stretcher body formed by splicing a first stretcher and a second stretcher through a sleeve, a back plate formed by splicing a first back plate and a second back plate, a soft bottom plate formed by splicing a first soft bottom plate and a second soft bottom plate, hoisting separation pins and lifting lugs are vertically installed at one ends of the first stretcher and the second stretcher, and corresponding stretcher connecting pieces are fixed to the bottoms of pin shafts of the four hoisting separation pins. The four lifting lugs are fixed with the lifting mechanism, and the connecting belt at the top of each lifting separation pin is fixed with the lifting mechanism; the hoisting mechanism is hoisted upwards, the pin shaft of each hoisting separation pin moves upwards to separate from the fixation of the stretcher connecting piece, so that the stretcher is separated from the air bag, and only the stretcher for fixing the drowning wounded is hoisted.

The present invention discloses a car lifeboat that automatically inflates using high-pressure liquid gas, comprising a lifeboat body, a front end face fixedly connected to the left side of the lifeboat body, side end faces fixedly connected to the two sides of the lifeboat body, and a rear end face fixedly connected to the right side of the lifeboat body. By designing two emergency inflation devices on the inner and outer surfaces of the car lifeboat, it can be inflated quickly. The inner part adopts a built-in high-pressure liquid gas method, which automatically fills the gas within eight seconds. The external high-pressure liquid gas method mainly has a connection port for connecting the external high-pressure liquid gas installed on the car lifeboat. In an emergency, after opening the car lifeboat, take out a special high-pressure liquid gas cylinder and connect it to the corresponding connection port, turn on the switch, and it can be opened in ten seconds. After the inflation is completed, the car lifeboat will generate buoyancy, and the car will float up according to the rising water surface. An encirclement is formed around the lifeboat to avoid collision with surrounding objects, avoid the loss of the car, and well protect the car.

The invention relates to a life buoy throwing device which comprises an unmanned aerial vehicle and a hanging cylinder hung below the unmanned aerial vehicle, a stepping motor is fixed in the hanging cylinder and fixed to a fixing disc, a rotating shaft is connected to the lower portion of the stepping motor, and the hanging cylinder is further provided with a releasing part, a limiting part and a hanging stopping part from bottom to top; according to the life buoy throwing device, one life buoy can be thrown each time, so that the purpose of precise throwing is achieved.

The present invention provides a navigation control device, a navigation control system, a navigation control method, and a computer program for controlling the navigation of an underwater vehicle toward an area where an aerial vehicle is thought to be flying. [Solution] The navigation control device 10 detects the arrival of sound waves from an object 60 suspended in the water from the flying body 50, inputs direction information indicating the direction of the sound wave's arrival and distance information indicating the distance between the underwater navigating body 30 on which the device is mounted and the object 60, and uses the direction information and distance information to control the navigation of the underwater navigating body 30 toward a target position set below the flying body 50.

The present invention relates to the technical field of inflatable rafts, and discloses an adaptive buoyancy regulating device for an inflatable raft, including an exhaust intensity control mechanism and an intake speed control mechanism, wherein a second longitudinal shell fixedly mounted on the upper surface of a side raft and having a hollow structure inside is provided inside the second longitudinal shell, a conical moving block placed inside the second longitudinal shell and controlling the gas flow speed by controlling the gap between the second longitudinal shell and the inner wall, and a longitudinal threaded rod capable of driving the conical moving block to move longitudinally. The adaptive buoyancy regulating device for an inflatable raft is symmetrically mounted on the sides of two wing rafts, and when the raft body of the inflatable raft moves too fast, seawater can be poured into the inside of the side raft shell, thereby reducing the buoyancy of the side raft, and then reducing the buoyancy of the entire inflatable raft, so as to improve the stability of the inflatable raft, thereby adaptively controlling its buoyancy according to the movement speed of the inflatable raft, and improving the safety of the inflatable raft during operation.