360 results about "Ship safety" patented technology

The invention relates to a ship rescue information system and realization method thereof. In the system, ship related information is obtained by each subsystem of a data obtaining module, and the information is transmitted to a data application module through wireless or network transmission by a data transmission module, the data application module checks, analyzes and stores data, the ship related information is obtained and operation recording or warning information is formed, the information is transmitted to a data service module as real-time displaying or warning processing, and simultaneously the data service module also can response the command issued by monitor staff for the system, thereby realizing related management operation. The invention has the following beneficial effect: real-time, efficient and accurate ship positioning and tracking position information, operation state and work condition are provided for ship management department and user, thereby improving ship supervision ability, further analyzing obtained ship information, realizing statistical analysis, early warning and warning functions of ship information, and further perfecting ship safety rescue system.

The invention relates to an inland river bridge area ship safe navigation precontrol system which comprises a radar station, an information processing center and an AIS base station. The radar station and the AIS base station are respectively in communication connection with the information processing center. The information processing center comprises a data processing and recording unit, a track fusion unit, an electronic river map unit, a precontrol decision-making unit and a precontrol information sending unit, wherein the data processing and recording unit obtains data from the radar station or / and the AIS base station and processes and records the data, the track fusion unit carries out fusion on the obtained radar or / and AIS data to obtain ship tracks, the precontrol decision-making unit carries out prediction according to the data processed and recorded by the data processing and recording unit and judges whether alarm instructions are sent out or not, and the precontrol information sending unit controls the AIS base station to send out alarms according to the instructions sent out by the precontrol decision-making unit. According to real-time traffic situations, the inland river bridge area ship safe navigation precontrol system can automatically identify navigation risks of the ships, automatically carry out early warning on the ships, guide the ships to pass through a bridge area safely, and reduce accident risks.

The invention discloses an automatic identification and monitoring system for ships, which belongs to the technical field of ship identification and monitoring. Hardware components comprise a ship terminal AIS module, a communication network and a host computer platform, wherein the ship terminal AIS module is connected with the host computer platform through the communication network in a wireless way; the ship terminal AIS module consists of a common interface for ship navigation devices, an information processor, an information monitor, a VHF transceiver, a GPS module and a communication module, which are connected electrically; the communication network comprises SOTDMA / VHF and GPRS / CDMA public network, wherein the SOTDMA / VHF and the GPRS / CDMA public network are electrically connected with a ship terminal and the host computer platform respectively; and the host computer platform is positioned in a base station center and consists of a data communication layer, a ship management layer and a user interface management layer. The automatic identification of ships is realized through direct communication between ships or the ship basic information transfer of a base station. The system overcomes the drawbacks of the prior ship navigation device in terms of communication distance and reliability, enlarges the communication range of the ships, ensures the reliability of communication and improves the safety of the ships.

There is elucidated a safety system for a marine vessel. The vessel includes two engines coupled to propellers for propelling the vessel through water. The vessel is provided with a digital anchor in communication with the two engines for maintaining the vessel substantially at a defined location when the anchor is activated. The safety system includes a sensor assembly coupled to a data processing assembly for sensing a region of said water at least partially surrounding the vessel for detecting one or more persons present in the region and for modifying operation of the digital anchor is response to the one or more persons being detected. The invention is of advantage in that the digital anchor is capable of responding to the one or more persons being present in the water and thereby reducing a risk of injury or loss of life when the digital anchor is employed.

The present invention discloses a ship safety forewarning method based on a classification detection of collision. The ship safety forewarning method provided by the invention comprises the following steps: (a) acquiring state information of a ship on the basis of an established three-dimensional virtual scene of a ship navigation channel; (b) classifying the collision types according to the driving direction angle with respect to the ship in the three-dimensional virtual scene; (c) calculating the minimum safe distance among ships through different determination methods of collision types; and (d) performing collision determination and emitting safety warning to the ships in a dangerous situation. The ship safety forewarning method based on classification detection of collision provided by the invention is capable of visually and accurately determining the ships in a potential collision danger in the navigation channel three-dimensional virtual scene in advance, and has the advantages of good accuracy, low operation cost, low interference rate and good application prospects.

The invention discloses a marine electromagnetic flangeless wheel water spray pump, which comprises: a water spray pump, a stator part, a rotor part and a bearing assembly; wherein, the water spray pump includes a shell, and water outlets and water inlets arranged at both ends of the shell; the stator The component and the rotor component are arranged on the housing near the water outlet; the stator component is an annular structure, the rotor component is arranged in the ring of the stator component, and the stator component and the rotor component are connected to each other through a bearing assembly; the stator component is provided with a motor Coil windings, rotor rings, permanent magnets and paddles are arranged inside the rotor parts; the motor coil windings inside the stator parts are energized to generate a rotating magnetic field, and the permanent magnets drive the rotor ring to rotate under the action of the rotating magnetic field, and the blades are connected to the rotor ring to rotate And generate thrust to push the ship forward. While effectively improving the propulsion efficiency, the present invention greatly reduces the probability of aquatic plants and other sundries being entangled or even damaged the pump shaft, thereby ensuring the safety of the ship.

The invention relates to a marine intelligent navigation monitoring system which is provided with a main frame with a display, a wireless communicating device, a GPS receiver, a communication navigation module, a geographic information system module and an auxiliary system module with intelligent decision function; the marine intelligent navigation monitoring system adopts MapX as the supporting platform of a digital nautical chart, obtains the digital nautical chart by the geographic information system module and carries out wireless data receiving and transmitting by the communication navigation module; the auxiliary system module realizes the effective references for the safe running of a ship, the real time monitoring on the ship-shore communication and the automatic updating of the digital nautical chart. The auxiliary system module includes six management modules of driving monitoring, nautical chart management, nautical chart operation, ship collision avoidance, shallowness passing of the ship, departure and in port of the ship as well as four basic databases of the nautical chart information, the port channel information, the basic information of the ship and a course. The invention can also be provided with a depth sounder used for detecting the depth of water. The invention adopts the MapX as the supporting platform of the digital nautical chart, to realize the networking dynamic management on the course, a flight point, a flight path, and the like, thus leading a manager to intuitively carry out immediate dispatching on the ship and improving the efficiency for shipping management.

The invention discloses a system for remotely monitoring the safety of a ship in real time based on a wireless sensor network (WSN) and an international maritime satellite-fleet (INMARSAT-F). The whole system consists of a ship wireless sensor network, a ship-borne network terminal, an INMARSAT-F station, a maritime satellite and a ground station, wherein the ship wireless sensor network detects each parameter related to the safety of the ship by sensors arranged all over cabins and bottom of the ship; the ship-borne network terminal is used for transmitting, calculating and processing data detected by the network; and the INMARSAT-F is used for transmitting necessary information to the ground station by the maritime satellite. The system can remotely monitor the state of the ship in real time and acquire the related data of a monitored area in real time to discover hidden dangers of the ship as early as possible and take measures to prevent the hidden dangers before the hidden dangers occur, thereby greatly increasing the safety coefficient of the ship, better ensuring the safety of personnel and properties of the ship and better ensuring the aims of safer sailing and cleaner ocean are fulfilled.

A ship navigational speed optimization auxiliary decision-making system comprises a weather forecast analyzer, an oil consumption prediction model, an ocean route reconstruction model, a genetic algorithm solver, a data acquisition platform and a ship end interface, wherein the data acquisition platform and the ship end interface are arranged at a ship end, and the oil consumption prediction modelis used for predicting the fuel consumption per hour of a main engine under an actual sea condition; the ocean route reconstruction model is used for carrying out equidistant segmentation on the route of a target ship and re-planning the remaining routes according to the current position of the target ship; the genetic algorithm solver is used for calculating the optimal rotating speed solution of the minimum fuel consumption of an airline; and the ship end interface is used for inputting predefined route information and displaying route and navigational speed optimization suggestions. The ship navigational speed optimization auxiliary decision-making system has the advantages that the oil consumption per hour estimation model and the navigational speed optimization model of the main engine containing stormy wave factors of a specific ship are established according to test data, and the optimal energy-saving navigation state adapting to the ship navigation environment and the runningrotating speed of the main engine of each navigation segment are given through a full-voyage navigation speed optimization decision by taking the minimization of voyage fuel consumption as a target, so that the ship safety and energy conservation are realized.

The invention discloses a quaternion ship security domain model which is characterized by being determined by the parameters Q and k. The parameter Q is determined by radiuses in four directions; the directional radiuses are respectively Rfore, Raft, Rstarb and Rport; Rfore and Raft are respectively the front radius and the rear radius of the longitudinal radius (Rlon) of the quaternion ship domain; and Rport and Rstarb are respectively the left radius and the right radius (Rlat) of the transverse radius of the quaternion ship domain. The boundary of the quaternion ship security domain model consists of a close curve determined by the four directional radiuses. According to the technical scheme, the invention further provides a ship collision avoidance method, a uniform safety domain frame is formed, a determined ship safety domain can be acquired intuitively; and by cooperation of collision avoidance geometric models, relevant ships can be effectively warned to act collision avoidance, and security of marine navigation is effectively guaranteed.

The objective of the invention is to provide a ship speed optimization method and device. The method comprises: according to the performance data of a ship itself, performing preprocessing of original data of ship navigation, and establishing a ship navigation database; performing division of the ship navigation database based on ship encounter angles, and establishing ship oil consumption models corresponding to each encounter angle based on the divided ship navigation database; dividing a ship voyage into at least one route segment based on the forecasting weather of passing regions and voyage number planning requirements, and establishing a ship segment speed optimization model corresponding to each route segment based on the ship oil consumption models corresponding to the encounter angles; and obtaining average speed of the corresponding route segment based on the ship segment speed optimization model. On the premise of satisfaction of ship safety and efficiency, the whole oil consumption is the lowest, the ship energy efficiency is improved, and the navigation cost is reduced.

The invention aims to provide a fuel supply system of a single ammonia fuel marine diesel engine.An ammonia storage tank, a gasification tank and a filtering cavity are sequentially connected, an outlet of the filtering cavity is connected with an ammonia gas pipeline and a hydrogen gas pipeline, and an ammonia gas pressurizing tank and an ammonia gas high-pressure common rail pipe are installed on the ammonia gas pipeline at a time. The ammonia gas high-pressure common rail pipe is connected with an engine through an ammonia gas electronic injection valve, an ammonia decomposition furnace, a hydrogen pressurizing tank, a middle hydrogen storage tank and a hydrogen gas high-pressure common rail pipe are sequentially mounted on the hydrogen gas pipeline, the middle hydrogen storage tank is connected with the hydrogen gas high-pressure common rail pipe through an electromagnetic flow valve, and the hydrogen gas high-pressure common rail pipe is connected with the engine through a hydrogen gas electronic injection valve. The fuel filling requirement of the marine diesel engine can be met only by filling the ammonia fuel, and a large amount of hydrogen fuel does not need to be stored, so that the safety of a ship is guaranteed, the cost of equipment required for hydrogen storage and transportation is saved, and the ammonia fuel has higher volume energy density than the hydrogen fuel and is easier to liquefy and store, and the storage space of fuel oil on the ship can be reduced.

The invention discloses a ship safety alarm device based on a TETRA digital trunking system. The device comprises a hand-held terminal. The hand-held terminal comprises a microprocessor, a TETRA transceiver, a GPS module, a voice processor, keys, a display screen, a loudspeaker, a telephone receiver and a microphone. The TETRA transceiver, the GPS module, the voice processor, the keys, the display screen and the loudspeaker are all connected with the microprocessor. The voice processor is respectively connected with the telephone receiver and the microphone. The invention further discloses a ship safety alarm method based on the TETRA digital trunking system. According to the device and method, on the basis of existing TETRA function services, the functions that an automatic early warning is given for the safe distance between ships and a ship danger shortcut key alarm is given are additionally achieved, the danger that the ships collide with one other is avoided, the rapid help seeking capacity when the ships are in danger is improved, and therefore it is guaranteed that ship sailing is safe.

The present invention discloses a device and method for precisely determining the direction and distance to a satellite radio beacon. In one embodiment, the disclosed device is used for SAR (search and rescue) of people in distress, upon activation of an emergency radio beacon, such as a marine EPIRB (Emergency Position Indicating Radio Beacon) or an airborne ELT (Emergency Locator Transmitter) or a terrestrial PLB (Personal Location Beacon) or a marine SSAS (Ship Security Alert System) beacon, beacons which are part of the Cospas-Sarsat system.

The invention provides a ship safety assisted driving system based on ship motion prediction, wherein a ship motion data acquisition system acquires the ship's motion attitude data in real time; an environment perception and acquisition system collects the navigation environment information of the ship; a ship motion prediction and calculation unit calculates and predicts the trajectory of the ship in the next week in real time according to the ship's motion attitude data, and generates a ship motion prediction line; a ship motion trajectory navigation display system reconstructs the navigation environment information collected by the environment perception and acquisition system, and superimposes and displays the ship motion prediction line; and a ship safety assisted decision-making system calculates and estimates the ship safety index parameters based on the surrounding environment and motion prediction, and provides safety warning and operational recommendations. The ship safety assisted driving system provided by the invention, based on ship motion prediction and dynamic scene capture, displays the motion prediction line of the ship on the navigation aid display of the cab, assists the driver to make maneuver decisions, and improves the safety of the ship sailing and the port by berthing.

The invention discloses a novel wet type ship waste gas comprehensive treatment method. The novel wet type ship waste gas comprehensive treatment method comprises the following steps: treating waste gas emitted by a ship diesel engine by natural sea water, high-oxidation and high-acidity solutions and high-reduction and high-alkali solutions, directly discharging the purified water gas into atmosphere, diluting the obtained purified waste liquid by natural sea water, and discharging into the sea. The invention also discloses a novel wet type ship waste gas comprehensive treatment device. The novel wet type ship waste gas comprehensive treatment device comprises a main seawater pipe, a primary spraying column, a pre-oxidation device, a secondary spraying column and a diaphragm electrolysis device, wherein an atomizer I in the primary spraying column is communicated with a pipeline branch I; an atomizer III in the secondary spraying column is communicated with a liquid exhaust hole of a cathode cell of the diaphragm electrolysis device. According to the invention, the required high-oxidation and high-alkali solutions are prepared by adopting the electrolysis method so as to achieve the aims of online application and synchronous desulfurization and denitrification, so that the ship safety hazard and the additional investment cost due to additional loading and storage of chemical medicine in a ship are reduced.

The invention discloses a ship ballast system which comprises a system server, a ballast pump system, a valve remote control system, a liquid level remote control system, a ship draught system and N water ballast tanks. The system server is connected with the ballast pump system, the valve remote control system, the liquid level remote control system and the ship draught system. The system server is used for calculating hull stress safety evaluation parameters according to water level information uploaded by the liquid level remote control system and the ship draught system and in combination with ship parameters and sending control commands to the ballast pump system and the valve remote control system according to current flotation condition change parameters of a ship, so that the water levels in all the water ballast tanks are adjusted, and the hull stress of the ship meets the requirements of the hull stress safety evaluation parameters. By the adoption of the embodiment of the ship ballast system, on the premise that ship safety and loading and unloading efficiency are guaranteed, work efficiency is improved, and the safety of an operation result is guaranteed.

The invention discloses a video-based three-dimensional virtual ship positioning and track simulation method which is characterized by comprising the following steps: 1, recognizing a ship on the basis of a video and extracting the characteristic information of the ship; 2, obtaining the position information and the motion direction of the ship in the video according to fixed time intervals; 3, realizing accurate positioning of a virtual ship in a three-dimensional virtual scene according to the obtained position information; and 4, fitting the obtained position with the current position point so as to generate the motion track of the ship in real time. According to the method, the real-time matching of ships in virtual scenes can be realized, the virtual dynamic representation of water transportation videos can be realized, and significance is brought to the management of ship navigation channels and the safe position prediction of ships.

The invention provides an under-actuated unmanned ship formation structure based on model ships. The structure comprises the multiple model ships that are arranged in a simulated navigation channel, and the simulated navigation channel includes simulated environment factors; one model ship serves as a master ship, and other model ships serve as slavery ships; the master ship is provided with a master ship simulation control system, the slavery ships are provided with a slavery ship simulation control system, the shore base is provided with a positioning information monitoring system, and the master ship simulation control system, the slavery ship simulation control system and the positioning information monitoring system are connected via network; and the positioning information monitoring system comprises a shore-based camera and a computer, the shore-based camera is used to capture marker lamps on the model ships and thus carry out image identification positioning on all the model ships, and the computer is used to identify and process images collected by the shore-based camera and obtain positioning information of the master and slavery ships. According to the invention, the difficulty and cost of large ship formation experiments are reduced, an instance is provided for operation and control of the large ship formation, and important guarantee is provided for tasks of safe ship formation navigation.

A safe navigation auxiliary system for a ship passing a ship lock comprises a ship monitoring terminal, a shore-side central control room and a wireless communication positioning system. The shore-side central control room is provided with a redundancy database server, a comprehensive data analysis machine and a data display control terminal, wherein the redundancy database server is connected with the comprehensive data analysis machine and the data display control terminal through a redundant Ethernet. The redundancy database server is connected with a UHF launching tower through a serial port, and the UHF launching tower sends differential data, gear information and dynamic information of the ship passing the ship lock to a ship side. The wireless communication positioning system comprises a big dipper reference station device, the UHF launching tower, a UHF wireless radio station and a satellite positioning receiving machine, wherein the UHF wireless radio station and the satellite positioning receiving machine are installed on the ship side. By means of the safe navigation auxiliary system and method for the ship passing the ship lock, the ship can safely and rapidly pass the ship lock, and the running efficiency and passing capacity of the ship lock are improved.

The invention discloses an unmanned ship-oriented autopilot integrated system, which comprises a sensing module, a communication system, a data processing module, a decision-making module, and an execution module, wherein the sensing module is used for sensing a ship navigation environment and obtaining a real-time channel, hydrology, a ship state and traffic environment dynamic information; the communication system is used for transmitting data and instructions between a ship and a shore and between the modules of the systems; the data processing module is used for processing information obtained by the sensing module; the decision-making module is used for identifying current operation situation and environment of the ship according to the data output from the data processing module, selecting an intended action in the next step and generating an operation instruction corresponding to the action; and the execution module is used for receiving the operation instruction sent from the decision-making module and controlling a propeller and a rudder of the ship by adopting a PID controller to change the movement state of the ship. According to the unmanned ship-oriented autopilot integrated system, the functions, such as environment sensing, behavior decision-making, ship control and remote control are integrated, so that manpower can be greatly liberated and safe navigation of the ship is ensured.

A security system for a marine vessel uses identification values to ascertain whether or not the devices used in a marine vessel control system are those which are expected. If an identification value is received by one device from another device, appropriate operation of the devices is permitted. However, if an incorrect identification value is received or no identification value is received, continued operation of the marine propulsion system is disabled.

The invention discloses a ship professional loading calculating system which helps a navigator to account ship floatation condition, stability and strength, and optimizes running longitudinal trim of a ship, and simulates a ship loading process. The system is a ship loading instrument The system comprises four sub-calculation systems of ship performance calculation, ship performance check, ship longitudinal trim optimization, and ship loading process real-time simulation. Through selecting different sub-calculation systems and cooperation among the sub-calculation systems, and inputting corresponding ship parameters, a basic data condition of safe and economical navigation of the ship can be obtained. The invention also provides a method for ship floating state adjustment, stability and strength accounting, longitudinal trim optimization, and ship loading process real-time simulation by using the above software. The system can ensure ship loading and navigation safety, and simplifies ship loading operation and saves energy, so as to improve security and economical efficiency of shipping, and reduce burden of navigators to a large extent.

The invention provides a ship intelligent alarm system and a ship, and relates to the field of ship navigation aiding. Information such as the positions, courses and navigational speeds of other ships is determined through a communication unit, and the information such as the position, course and navigational speed of the current ship is acquired through a data acquisition unit, and a control processing unit is used for calculating according to the two kinds of information; when the ship is in different navigation speeds, different early-warning conditions are used, and when the sailing states of other ships reach early-warning conditions, an alarm unit is controlled to give an alarm so that the ship can effectively avoid other ships; when the ships enter a port area and the ship density of a port is too high, the system automatically shuts off the alarm to avoid unnecessary disturbance; when the ships enter a specific water area, voice prompting is carried out through the alarm unit so that the sailors can effectively adjust routes, accidents are reduced, and the safety of the ships is guaranteed.

The invention discloses a propulsive power dynamic self-adaptive control method. The method comprises the steps that the main distribution board busbar switch state of a power management system, and the network state and the load factor of a diesel generator set are acquired and sent to a controller; and the controller synthesizes the information and the current output power of an inverter to carry out dynamic power limiting and fast power limiting on the inverter. In the dynamic power limiting process, the controller monitors the load factor of the diesel generator set in real time, and constantly adjusts the limit of the output power of the inverter to ensure safe operation of the diesel generator set. In a fast power limiting process, the controller monitors the load factor of the diesel generator set and the corresponding main switch state in real time. When the corresponding main switch is turned off due to the failed generator set, the controller can quickly limit the output power of the inverter to ensure safe operation of remaining generator sets. The propulsive power dynamic self-adaptive control method provided by the invention has the advantages of simple system structure and high automation degree, and can ensure safe and reliable sailing of an electric propulsion ship in all cases.

The invention discloses a flexible floating ship collision-proof system, which is characterized by the following: one side of floating platform connects the anchor through anchor chain and the other side of floating platform connects the auxiliary anchor through auxiliary anchor chain; the floating platform is composed of multiple arrangements with adjacent platform connecting through platform connection chain to stop ship through; the anchor and auxiliary anchor is gravity anchor or gravity anchor with grab force to provide reliable horizontal pull force. The invention guarantees the ship safety, which is fit for larger depth and level variation environment.

The invention provides a ship domain model identification method based on a generalized on-line self-organizing neural network. The ship domain model identification method based on the generalized on-line self-organizing neural network includes the following steps: a ship safe region model is selected, and a function, input variables and an expected output value of the ship safe region model are determined; a dynamic fuzzy neural network which comprises an input layer, a membership function layer, a T-norm layer and an output layer is established; a training dataset containing the input variables and the output value of the model is used, and the dynamic fuzzy neural network is subjected to training until the accuracy requirement is met; sailing parameters of two corresponding ships are used as the input variables and input to the ship safe region model after the training is finished, and then a ship safety region of the two ships is obtained. Due to the technical scheme, compared with a traditional ship domain model, the safe model after being corrected through the ship domain model identification method based on the generalized on-line self-organizing neural network has higher accuracy and higher security.

The invention discloses a ship energy management system based on hot redundancy controllers. The ship energy management system comprises a master controller used as a main control station and further comprises a standby controller used as a standby control station. The hot redundancy controllers are adopted for conducting real-time synchronous communication through a synchronous bus. Unit controllers and unit interface modules are connected through field buses. The unit controllers are connected with main units which are connected with a main power grid through main switches. The main power grid is connected with a daily use power grid through a power supply switch. The daily use power grid is connected with a mooring unit and shore power through a power supply switch. Synchronous modules are arranged on the power supply switches. All the functions of the ship energy management system are achieved through the hot redundancy controllers, the load rates of the units and the states of the main switches can be monitored in real time, so that the generator overload situation caused by sudden changes of the loads is prevented, the phenomenon that ship safety is affected due to the power off of a whole ship is prevented, and the ship energy management system is excellent in performance, safe, reliable, convenient to operate and wide in application range.

The invention relates to a design method of a frequency converter alarm of a ship electric propulsion system, belonging to the field of ship safe operation and maintenance. At first, the historical data of the effective value of the A-phase input voltage of the frequency convert is converted into an alarm reliability vector by using a relational mapping transformation method, and the alarm reliability vector is then recursively fused at the current time with the alarm reliability vector at the past time by using the alarm reliability fusion rule, the fusion process can effectively reduce the influence of uncertainty and reduce the false alarm rate and missed alarm rate of the alarm device. The global alarm reliability vector at the current time is obtained and the global alarm reliabilityvector is used to determine whether the alarm is issued.