57 results about "Marine safety" patented technology

A buoyant marine safety ladder apparatus includes a ladder that is pivotably mounted to a seawall or other support platform and is alternatable between a retracted condition, wherein the ladder is floating above the water, and a deployed or extended condition, wherein the lower end of the ladder extends into the water. A stop component restricts pivoting of the ladder such that it extends upwardly from the body of water at an angle of approximately 45° when in the extended condition.

The invention discloses a method for estimating oil spill area based on image processing and laser ranging, belonging to the field of marine environmental pollution detection and marine safety protection. At first, the pixel value of the oil spill area is quickly and accurately obtained by the image processing technology, then the laser rangefinder is reproduced on the basis of high-precision two-dimensional servo structure, according to the image processing obtained by the edge of the oil film to measure the different positions of the oil spill from the observation point of the true distance,the oil spill area of the pixel value and converted into the true size of the area. Then the area is calculated by the corresponding algorithm. The method disclosed by the invention ensures the estimation accuracy of the oil spill area, because the algorithm of image processing is relatively mature and easy to implement, and the cost of laser rangefinder is much lower than that of oil spill radar, the cost of oil spill area estimation is greatly reduced, which can provide a comparative basis for oil spill area estimation of ships equipped with oil spill radar, and effectively improve the efficiency of cleaning and recovering oil spill in the sea.

The present invention discloses a port safety ship pilotage system based on PPU (Portable Pilot Units) and a port safety ship pilotage method based on PPU. The system comprises PPU, a ship end marinesafety information display system, a ship end pilotage safety automatic report system, a shore-based pilotage auxiliary information push system, a shore-based pilotage safety supervisory system and adata center. The ship end pilotage safety automatic report system communicates with the shore-based pilotage safety supervisory system, and the shore-based pilotage auxiliary information push system communicates with the ship end marine safety information display system. The method comprises the steps of: establishing a pilotage safety record mechanism at a ship end, and establish a data center ata shore base; establishing ship and shore cooperation, and employing a 'subscription-publishing' mechanism; and employing communication between the ship and the shore to achieve pilotage automatic report and marine safety information push and achieve interconnection and intercommunication between the ship and the shore and information sharing in the pilotage operation. The pilotage business dataand the marine safety information sharing efficiency are improved, the pilotage safety is guaranteed, and the pilotage safety supervision is enhanced.

The invention relates to the technical field of bottom oil detection, in particular to a deep convolutional neural network-based bottom oil sonar detection image recognition method. The method comprises a sonar detection image preprocessing module and a deep convolutional neural network bottom oil target identification module. According to the method, a deep convolutional neural network algorithmis introduced into bottom oil detection and identification; the key problems of automatic sinking-to-bottom oil target identification, automatic leakage position positioning, automatic sinking-to-bottom oil pollution area estimation and the like are solved. The method provides a basis for emergency decision and disposal of marine oil spill accidents, improves the level of a bottom oil detection and identification technology in China, provides technical support for national marine safety and petroleum safety, and has important engineering significance and application value.

To provide a marine safety ladder that makes rescue possible within a short time, without posing any risk of contact with a pleasure boat or the like, without causing any additional concern in the operation of boats during docking and departure, without the risk of injury to a person who has fallen, etc., and without the risk of falling when the ladder is being stowed.

A top hinge member (67) is connected and fixed to one end, a middle hinge member (68) is connected and fixed to the middle, and a bottom hinge member (69) is connected and fixed to the other end, respectively, to, in the width direction, the underside of a deck (2) of a floating pier (1) or of a transom step (2′) of a boat (1′); and a main ladder (20) and guide rails (30) are provided rotatable about the top hinge member (67) via top connecting members (61); and with a bottom latch element (64) being engaged with the bottom end of the main ladder (20) or members in the vicinity thereof, a sliding member (40) is located at the bottom end of the guide rails (30), and all constituting parts are stowed within the width of the deck (2) of the floating pier (1).

The invention discloses a multifunctional marine water area environment monitoring device. The device comprises a wave-resistant swash floating body, a laminated corrosion-resistant rack fixed at theupper part of the wave-resistant swash floating body, and an anchoring mechanism connected to the bottom of the wave-resistant swash floating body. The wave-resistant swash floating body is provided with a plurality of wave-dividing power generation unloading channels and swash load-bearing paddles used for restraining transient oscillation of the wave-resistant swash floating body and balancing upper pressure and lower pressure. A water inlet of each wave-dividing power generation unloading channel is located on the periphery or the side upper portion of the wave-resistant swash floating body, a water outlet of the wave-dividing power generation unloading channel is located at the bottom of the wave-resistant swash floating body, the swash load-bearing paddles are arranged at the bottom of the wave-resistant swash floating body, and the wave-resistant swash floating body is further provided with a plurality of monitors and sensors electrically connected with a data acquisition controller. The multifunctional marine water area environment monitoring device being a marine water area comprehensive real-time continuous monitoring device integrating multiple functions of marine water area pollution prediction and control, aquaculture and fishing, marine meteorological disaster prediction, navigation channel traffic and management law enforcement, ocean engineering and resource development, marine safety, military protection, marine science research and the like.

The invention provides a safety production tubular column for same-well production and injection in an offshore oilfield. The safety production tubular column comprises a liquid injection layer sand filtering tube arranged in a corresponding position of an injection layer and a liquid production layer sand filtering tube arranged in a corresponding position of a production layer, wherein the liquid injection layer sand filtering tube and the liquid production layer sand filtering tube are vertically connected, a filling sand-control packer is arranged at the connecting position, a suspension packer is arranged at the upper end of the liquid production layer sand filtering tube, a long sealing inserting tube penetrates through the center of the liquid production layer sand filtering tube, the lower end of the long sealing inserting tube is connected to the liquid production layer sand filtering tube straightly, and the upper end of the long sealing inserting tube is connected with a volume barrel above the suspension packer. According to the safety production tubular column, defects in the prior art can be effectively overcome, the tubular column has the characteristics that liquid production and injection in one well in the offshore oilfield can be realized and the offshore safety production requirement is met, and the tubular column is particularly applicable to the development of the offshore oilfield.

The invention discloses a ship wandering detection method based on AIS data, and the method can achieve the detection of the wandering behaviors of a ship according to the obtained AIS track data of the ship and the massive track data, classifies the wandering behaviors of the ship, and summarizes the relation between the tracks of four types of typical abnormal motion behaviors of the ship and adefined variable. According to the relationship between the ship motion trail characteristics and the statistical parameters, analysis is performed and the abnormal wandering behavior of the ship is detected according to the trail distribution condition in the grid. After the ship AIS track is filtered and smoothened, a global space-time grid index is established, gridding processing is conductedon the ship track, ship abnormal motion is detected according to ship abnormal behavior track characteristics, and abnormal classification alarming is conducted on ship motion behavior track abnormity. The ship wandering behavior detection can provide decision support for marine safety supervision, enhances marine traffic safety, ensures safe sailing of the ship, and has important significance forpromoting marine transportation to be safe, efficient and smooth.

A multipurpose marine safety storage system includes a safety storage unit for containing emergency/safety gear and which is adapted for quick release attachment to a marine craft. The safety storage system includes a storage unit having attachment locations for the attachment of modular containers for miscellaneous safety and personal items. The system is adapted for flotation by the incorporation in the storage unit of the sheet of buoyant material such as closed cell foam or an inflatable bladder so that the system serves as a flotation device as well as a container for bulky items such as life jackets. In the preferred embodiment the multipurpose storage system is secured on the undersurface of a cockpit cover so that items contained in the safety storage unit and modular containers are stored overhead and out-of-the-way yet are conveniently and instantly available in the event of an emergency. At least one surface of the safety storage unit of the system is provided with SOLAS grade reflective tape to enhance day and night visibility for search and rescue.

A marine safety device for deployment in water upon unwanted entry by a person into the water to indicate the location of and to provide buoyancy for that person; the assembly comprises a cover for retaining components of the device as an undeployed package, an inflatable mast having a proximal end which engages the cover and a distal free end, means for inflation of the inflatable member upon contact between the device and a body of water. A weight is located at or near the proximal end of the inflatable member to bias the inflatable member to a generally upright position. The device further comprises means to enable a person in the body of water to gain floatation from the assembly via at least one grippable member attached to the inflatable member. The device when deployed, sits in the body of water so that at least part of the inflatable member remains exposed to view above a top water level to enable rescuers to pinpoint the location of the person in the water and to enable a person in the water to use the inflatable member as a buoyant safety device.

An SAR image ship detection method based on Gaussian function fitting of sea clutter belongs to the technical field of remote sensing image processing, specifically is a constant false alarm rate (CFAR) image ship detection method based on Gaussian function fitting of sea clutter and mainly solves the problems of low sea clutter fitting goodness and poor overall detection performance when the existing detecting technique is applied to high-definition pictures. The detection process is characterized by carrying out sea clutter distribution fitting by using an n-order Gaussian function; calculating threshold value according to the fitting function; and detecting the ship with the constant false alarm rate (CFAR) method being combined, and obtaining the final detection result. The method has better fitting goodness and higher detection performance, and can be applied to the field of fishery supervision and marine safety and the like.

The invention discloses an intelligent detection method and device for monitoring marine safety operation of a ship, and belongs to the technical field of marine safety and intelligent image detection. The method comprises the steps of acquiring and storing image information of a cockpit, a foredeck and an afterdeck of the ship; acquiring navigational speed information and longitude and latitude information of a ship; judging whether the ship is in a sailing state or not through the navigational speed information and judging whether the ship is in a harbor area or not through the longitude and latitude information; acquiring image information of a ship in a non-harbor area and in a sailing state, performing image recognition, acquiring violation images of a cockpit, a foredeck and an afterdeck, recording detection time of the violation images, and storing the violation images; when the violation duration exceeds a set time length, giving an alarm, and uploading violation images, ship information and starting and ending time information of the violation images to a server and displaying through a ship management platform. The problems of unmanned driving and no life jacket wearing by sailors in the sailing and operation process of the ship can be monitored in real time.

The invention discloses a hydrogen removal device for a marine electrolytic ballast water treatment system. The operating method comprises the following steps: performing gas-liquid separation on electrolyte discharged by a seawater electrolysis unit in a gas-liquid separation unit; drying the separated hydrogen by a dryer; and finally, feeding the dried mixed gas into a CuO reactor. The hydrogenremoval device disclosed by the invention has the technical effects that the electrolyte produced by electrolysis is first subjected to gas-liquid separation, dried and introduced into the CuO reactorfor carrying out a redox reaction when the electrolysis unit for the ballast water treatment system is operated, and reduced Cu and water can be produced, so that the aim of removing the hydrogen isachieved. The reduced Cu and H2O are easily oxidized to produce CuO, so that the recycling aim is achieved. The by-product hydrogen is effectively treated, the marine safety is ensured, the equipmentis simple, the cost is low, a long hydrogen removal pipeline does not need to be installed, and leakage risk is reduced.

The invention discloses a marine safety movable inclined ladder comprising an inclined ladder. The inclined ladder includes two inclined supporting rods, vertical supports and horizontal step boards. The vertical supports are arranged on the outer sides of the two inclined supporting rods respectively, wherein each horizontal step board is fixed to the upper ends of two corresponding vertical supports on the two inclined supporting rods. A liftable vertical rod is fixed onto the upper end of each inclined supporting rod. A first transversal rod is fixed onto the lower end of the two inclined supporting rods. A second transversal rod is fixed onto the lower end of each liftable vertical rod. The first transversal rod is in parallel with the second transversal rod, wherein roller wheels having brake function are disposed respectively on the bottoms of the first transversal rod and the second transversal rod. Two vertical rods are arranged between the first transversal rod and the second transversal rod. A plurality of reinforcing rods are disposed between the two vertical rods. Antiskid rubber pads having antiskid lines are pasted on the upper surface of each horizontal step board. Fluorescent bars are arranged on the upper surface of each antiskid rubber pad. The marine safety movable inclined ladder has simple structure, is convenient to use and is good in safety.

The invention discloses a full-shaft heat-insulation electric submersible pump injection-production integrated pipe column applied to a 370-DEG C thermal production well and an operation method thereof. The pipe column comprises an oil pipe, a Y connector, a heat-insulation oil pipe short section, a high-temperature electric pump unit, a Y-shaped penetrating device, a high-temperature deep well packer and a pipeline. According to the pipe column, the process conversion of steam huff and puff from heat injection to production is achieved without moving the pipe column, the injection-production integrated technology is achieved, the operation cost is reduced, and the thermal production efficiency is improved; full-shaft heat insulation is adopted in the technology of the pipe column, no hot spot exists in the whole process, and the operation safety of an electric submersible pump is further guaranteed; meanwhile, the scheme meets the requirements for marine safety and environmental protection, a high-temperature safety control system is arranged underground, and the safety of shaft steam injection production can be guaranteed; and according to the scheme, temperature data monitoring can be carried out on a full shaft through optical fibers, and technical support is provided for later process scheme optimization. The pipe column has great significance in large-scale development of Bohai Sea thickened oil.

The invention relates to a safety boarding ladder for a ship, the safety boarding ladder comprises a ladder frame and an inclined ladder. The marine safety boarding ladder is characterized in that the top part of the ladder frame is connected with a telescopic frame, and the top end of the telescoping frame is fixedly connected with hooks. The defect of inflexible use of traditional fixed type marine boarding ladders can be overcome. Compared with existing movable type boarding ladders for the ship, the safety of use can be improved, and the occupied space can be reduced. The safety boarding ladder for the ship has the advantages of simple structure and easiness in operation, and a good basic appliance can be provided for the ship.

A rip current prediction and alarm device belongs to the field of ocean safety early warning, and comprises a fixing plate and a wind power generation device; wherein the wind power generation devicecomprises a wind wheel and a tower, the wind wheel is arranged at the top of the tower; the bottom of the tower is fixed on the fixing plate; the tower is provided with a first current meter; a loudspeaker and a data processing and control module are arranged over the fixing plate; a fixing device and a paint box are arranged under the fixing plate; and the data processing and control module is connected with the loudspeaker, the first current meter and the paint box separately through lines. The rip current prediction and alarm device of the invention is sensitive in measurement, convenient in use, and capable of timely discovering the occurrence of a rip current and giving warning, in addition, the rip current prediction and alarm device has a good warning effect by adopting various modes such as red pigment indication and loudspeaker broadcast, so as to guide a swimmer to escape in time and guide a lifeguard to perform rescue in time.

The invention provides a marine safety airbag system. The marine safety airbag system comprises a guide rail cylinder, a high-strength spring, an ejection rod, an annular electromagnet, safety airbagequipment and a control system. When the ship body tilts to a large extent due to emergencies such as contact reef water leakage, storm influence and the like, the electromagnet is powered off, and the ejection rod instantly ejects to the upper side of the water surface under the action of restoring force of the high-strength spring. At the same time, a sodium azide layer in the safety airbag assembly arranged in the ejection rod is immediately subjected to gas explosion, nitrogen generated by chemical reaction is immediately inflated to the folding airbag after passing through the filter layer, and the airbag is instantaneously inflated and floats on the water surface. When the ejection rod is ejected out, the spring metal bar connector which is originally compressed is ejected out, and the ejection rod is prevented from moving towards the direction of the high-strength spring. The safety airbag system for the ship can stabilize the ship body in time, increase the buoyancy of the shipbody, reduce the sinking speed and even prevent the ship body from sinking, and is very worthy of application and popularization in actual life.

The invention relates to an interlocking device and a multi-step nested high-precision self-adaptive sensor applying the interlocking device. The interlocking device comprises a positive locking connecting sleeve and a negative locking connecting sleeve, the negative locking connecting sleeve is arranged above the positive locking connecting sleeve, an accommodating space is formed between the positive locking connecting sleeve and the negative locking connecting sleeve, a vertical sliding groove is formed in the circumferential direction of the outer side wall of the upper cavity, a convex column matched with the vertical sliding groove is further arranged on the inner wall of the negative lock connecting sleeve, and the convex column can slide up and down along the vertical sliding groove; the high-precision self-adaptive sensor comprises n differential pressure sensors (n is larger than or equal to 2) which are sequentially arranged from bottom to top, the measuring ranges of the differential pressure sensors are increased step by step, the adjacent differential pressure sensors are connected through an interlocking device to form a multi-step sensor nested structure, and when the full measuring range of a low-step sensor is achieved, the low-step sensor is locked through the interlocking device. The measuring range of the sensor can be protected and the optimal precision can be obtained under the condition of effective measurement through the measurement of the next-stage higher-order differential pressure sensor, so that the self-adjustment of the measuring range and the precision is achieved, and the interlocking device and the multi-step nested high-precision self-adaptive sensor applying the interlocking device have extremely important significance for deep seascientific research, resource and energy development engineering activities and marine safety national defense engineering.