165results about "Waterways transport" patented technology

An apparatus and method for control of at least one of a plurality of semiautonomous marine vessels are provided. The system includes a control station with a communications system for network communication with marine vessels, and provides diagnostics and control for control and monitoring of the marine vessels, according to a mission plan.

There is provided a navigation route generation device with which a host moving body can be navigated by offsetting it parallel to a line on the current travel direction of the host moving body by a simple operation, without changing the preset destination or bearing. A plotter that is part of an automatic steering system of a ship comprises a current route acquisition component, a parallel route generator, and a navigation route setting component. The current route acquisition component acquires the travel direction of the host ship. The parallel route generator generates a parallel route, which is a route that is parallel to the travel direction acquired by the current route acquisition component. The navigation route setting component sets the parallel route generated by the parallel route generator to the navigation route of the host ship.

A color filter is provided with red, green and blue color filter segments. When chromaticity coordinates (x, y) in a chromaticity diagram of XYZ color specification system are measured with the color filter being sandwiched between two polarizers, a chromaticity (xp, yp) of parallel-transmitted light and a chromaticity (xc, yc) of orthogonal-transmitted light satisfy the following formula (1):Δxy=[(xp−xc)2+(yp−yc)2]1 / 2<0.130  (1)A liquid crystal display device is provided with such a color filter.

An electronic navigational system may automatically develop nautical routes, may retrieve previously-developed nautical routes, or may combine previously developed route(s) or route segment(s) with an automatically developed route or route segment(s).

Ballast and / or cooling water biocidal treatment and disinfection systems and techniques are provided. The systems utilize oxidation reduction potential control to regulate addition, or concentration of an electrocatalytically generated biocidal agent to disinfection levels in ship buoyancy and to biofouling levels in ship cooling water systems. The disinfection and biofouling control systems provide suitable treatment while reducing the potential for corrosion of ship components and, in some cases, undesirable disinfection byproducts.

A fleet of autonomous sailing vessels that are equipped with monitoring and communication equipment for reporting environmental and other conditions. For optimal stability, the autonomous sailing vessels are multi-hulled vessels (catamarans) with self-righting capabilities. Each sailing vessel sends and receives information via one or more satellite links, using solar power to power the communications equipment as well as the monitoring equipment. Each sailing vessel includes an auto-sailtrim system to maintain a desired attack angle with the wind, and electric propulsion for use as required to maintain a desired heading. A modular design is used to support mission-specific payloads.

A method and apparatus for routing a vessel from a start point to an end point. Routes are generated from the start point to the end point based on a number of objectives. A group of waypoints is added between the two waypoints with respect to the region of interest in response to a segment between two waypoints in a route in the routes crossing a region of interest.

The invention relates to an unmanned ship route optimization method based on environment forecast information. According to the method, environment information factors possibly influencing marine navigation of an unmanned ship are collected through meteorological forecast, the current position of the unmanned ship is confirmed through a global positioning system, and an accurate unmanned ship navigation state is obtained; modeling is performed on the environment of a sea area by considering the influences of static barriers in an unmanned ship navigation area and the meteorological factor of ocean currents on the unmanned ship in combination with obtained environment data; and design is performed based on an unmanned ship route planning algorithm of a particle swarm optimization algorithm,an unmanned ship route designed through the planning algorithm avoids the static barriers as much as possible, and the ocean current area beneficial for unmanned ship navigation is utilized. Throughthe method, the unmanned ship can design the route according to the environment forecast information, the route can be timely adjusted at any time according to weather environment changes, the situation that a bad environment on the sea area threatens the safety of the unmanned ship is avoided, and the economy and safety of unmanned ship navigation are improved.

A measuring type unmanned ship comprises the following structures including a ship body, a GNSS mainframe, a depthometer and a wireless data transmission module, wherein the ship body forms a hardware bearing platform for the unmanned ship; a cabin with a sealed space is arranged in the ship body; the GNSS mainframe is used for detecting the current position of the unmanned ship; the depthometer is used for detecting the water depth in the current position of the unmanned ship; the wireless data transmission module is connected with a control device and used for transmitting the current position information and an equipment working state and receiving a control instruction. A measuring method of the measuring type unmanned ship comprises the following steps that the unmanned ship automatically measures a preset water area according to an instruction signal obtained by the control device and automatically matches the measured water depth data and corresponding position coordinates of measuring points; the water depth information and the position information are transmitted and backed up through the wireless data transmission module and a memory; after the measuring range is finished, multi-point water depth information of the water area can be obtained; and then the information is summarized to obtain water depth status and underwater topography status of the water area.

Provided is a mobile harbor capable of loading and unloading cargo with a ship being at anchor in the sea far from the shore, not coming alongside the pier of a stationary harbor. The mobile harbor includes a self-propulsion apparatus and a loading / unloading apparatus such that cargo can be loaded from a ship to a mobile harbor or unloaded from the ship to the mobile harbor after the mobile harbor comes alongside and couple to the ship far from the land.

A system and method is provided for efficiently changing controlled engine speed of a marine internal combustion engine in a marine propulsion system for propelling a marine vessel. The system responds to the operator changing the operator-selected engine speed, from a first-selected engine speed to a second-selected engine speed, by predicting throttle position needed to provide the second-selected engine speed, and providing a feed forward signal moving the throttle to the predicted throttle position, without waiting for a slower responding PID controller and / or overshoot thereof, and concomitant instability or oscillation, and then uses the engine speed control system including any PID controller to maintain engine speed at the second-selected engine speed.

An apparatus and method for control of at least one of a plurality of semiautonomous marine vessels are provided. The system includes a control station with a communications system for network communication with marine vessels, and provides diagnostics and control for control and monitoring of the marine vessels, according to a mission plan.

There is provided an automatic steering device with which an optimal duty ratio for achieving an optimal rudder turning speed at a cruising speed can be found simply and accurately. An automatic steering device 10 includes a correspondence acquisition component 24 and a duty ratio calculator 25. The correspondence acquisition component 24 finds a correspondence between a duty ratio and a rudder turning speed based on a first rudder turning speed while a steering mechanism 11 is controlled at a first duty ratio, and a second rudder turning speed while the steering mechanism 11 is controlled at a second duty ratio. The duty ratio calculator 25 calculates the duty ratio corresponding to a specific rudder turning speed based on the correspondence found by the correspondence acquisition component 24.

The invention provides an anti-fouling lighting system (1) configured for preventing or reducing biofouling on a fouling surface (1201) of an object (1200) that during use is at least temporarily exposed to a liquid, by providing an anti-fouling light (211) to said fouling surface (1201), the anti-fouling lighting system (1) comprising: —a lighting module (200) comprising a light source (210) configured to generate an anti-fouling light (211); and —an energy system (500) configured to locally harvest energy and configured to provide electrical power to said light lighting module (200), wherein the energy system (500) comprises (i) a sacrificial electrode (510), and (ii) a second energy system electrode (520), wherein the energy system (500) is configured to provide electrical power to the lighting module (200) when the sacrificial electrode (510) and the second energy system electrode (520) are in electrical contact with the liquid.

The invention discloses a direct-fired type constant-temperature and constant-humidity air conditioning system for a ship and a working method. The direct-fired type constant-temperature and constant-humidity air conditioning system for the ship comprises a heat pump subsystem, a solution dehumidifying subsystem, a waste heat humidifying subsystem, an air delivery duct, an air filter, a temperature sensor and a humidity sensor. A Stirling engine taking natural gas as fuel drives a compressor directly to complete steam compression work, the transmission loss of the work quantity is avoided, andthe energy utilization rate is increased; through the low-temperature seawater and flue gas waste heat utilization technology, the problem of poor refrigerating and heating performance of the air conditioning system for the ship is solved effectively, and the energy efficiency coefficient of the air conditioning system for the ship is increased; and through the waste-heat-driven spraying humidifying and solution dehumidifying technology, the humidity value is adjusted comfortably, and the air quality is improved. The novel constant-temperature and constant-humidity air conditioning system forthe ship is constructed in a mode of independent control over the temperature and the humidity, the system plays a main role in refrigerating / heating and an auxiliary role in humidifying / dehumidifying, and after an existing energy-saving technology and air treatment technology are integrated, the effect of constant-temperature and constant-humidity comfortable adjusting of air in a ship compartment is achieved.

Apparatus is provided having a signal processor or signal processing module configured to receive signaling containing information about the quality of water in a ballast water tank recirculation treatment system, e.g., in a vessel, boat or ship; and determine information about a variable fluorescence treatment to the water in the ballast water tank recirculation treatment system, based at least partly on the signaling received, as well as provide corresponding signaling containing information about the variable fluorescence treatment. The apparatus may include a variable fluorescence device configured to receive the corresponding signaling and provide the variable fluorescence treatment, including providing ultraviolet (UV) light to the water in the ballast water tank recirculation treatment system.

The invention discloses an unmanned ship path planning method and system based on an improved genetic algorithm, and the improved genetic algorithm is adopted to plan the path of an unmanned ship. Themethod comprises the following steps: acquiring course data and position data of the unmanned ship, and preprocessing the course data and the position data; collecting wave information of the environment where the unmanned ship is located, and converting the wave information into a constraint factor; performing path planning according to the course data and the position data of the unmanned shipby adopting an improved genetic algorithm to obtain an optimal path sequence; and based on the optimal path sequence, correcting the course and the speed of the unmanned ship according to the constraint factor, and completing path planning.

The equipment for collection of impurities in stagnant waters having a catamaran design includes two catamaran floats (1) having a form of a hollow body terminated by the jaws (7), where at the front part of the catamaran floats (1) there is mounted in the frame (2) the conveyor belt (3) with the removable mesh belt (11) with fixed forks (12), with the drive (5) of the belt (11). At the middle part of the catamaran floats (1), under the conveyor belt (3), there is attached the removable container (8), in the cavity of the catamaran floats (1) there are the batteries (14) connected to the photovoltaic cells (9), which are installed on bracket (4) of the photovoltaic panels and at the end of the catamaran floats (1) there is fixed the marine engine (13), the rudder (6) and the remotely programmable control (10), and the equipment is also provided with a separate remote control—a joystick.

A hybrid energy harvesting system for powering underwater vehicles having at least one thermal engine, at least one of a solar or a wave energy harvester, and a battery which stores electric energy produced by the harvesters. The energy harvesters keep the battery charged and thereby expand an underwater vehicle's operational areas to high latitudes and shallow water. Multiple thermal engines employing different phase-change materials can be used to expand the vehicle's working temperature range and thus allow it to operate over a larger area. An electric motor powered by the battery and a pump driven by the motor can be used to pump hydraulic fluid between the accumulators and external bladders of the thermal engines to cause the vehicle to descend and ascend when the thermal gradient to which the vehicle is subjected is insufficient.

A situation display device is provided. The device includes: an observation data acquiring module configured to acquire observation data, and information of observed locations of the observation data; a data selecting module configured to select the observation data within a predetermined range from a course of the device; and a display unit configured to display a location of the device on a bottom side of a display screen, and display the course linearly such that its traveling direction extends upward from the bottom side. The display unit displays, a predetermined area in an upward tapering shape, and displays the selected observation data at a position that indicates a relation between the course and the observed location, the displayed position of the device in the perpendicular direction being corresponding to an offset of the location of the device from the course.

A power supply system for an electrical drive of a marine vessel is provided. The electrical drive comprises an electric motor that is adapted to receive electric energy from a power source. The electrical drive has a first operating state in which electric energy is supplied by the power source to the electrical drive to operate the electrical drive and a second operating state in which the electric motor of the electrical drive is decelerated or braked, wherein the electrical drive generates electric energy in the second operating state. The power supply system comprises an electric energy storage device for storing generated electric energy.

An ultrasonic probe comprises a piezoelectric transducer(1) for transmitting / receiving ultrasonic waves; and a conductive substrate(6) electrically connected to the piezoelectric transducer. The conductive substrate is opposed to a side surface of the piezoelectric transducer. A corner portion(10) formed by the piezoelectric transducer and the conductive substrate is provided with a conductive material for electrically connecting the piezoelectric transducer and the conductive substrate.

The invention discloses an LNG ventilating mast assembly and a ship including same. The LNG ventilating mast assembly comprises a first air hose, a second air hose, a first ventilating mast and a second ventilating mast, wherein the first ventilating mast and the second ventilating mast are located at the uppermost layer of the ship; one end of the first air hose is connected with an safety valve of an LNG tank, and the other end of the first air hose penetrates through the first ventilating mast and extends to a zero-level dangerous gas discharging outlet of the first ventilating mast; one end of the second air hose communicates with a TCS chamber of the LNG tank, and the other end of the second air hose penetrates through the second ventilating mast and extends to a first-level dangerous gas discharging outlet of the second ventilating mast; and the zero-level dangerous gas discharging outlet is higher than the first-level dangerous gas discharging outlet. According to the LNG ventilating mast assemble and ship with LNG ventilating mast assemble, the height of the zero-level dangerous gas discharging outlet is designed to be greater than the height of the first-level dangerous gas discharging outlet, and the problem that the zero-level dangerous gas turns back to the first-level dangerous gas discharging outlet and returns to the LNG tank along the second ventilating mast so as to affect the ventilating effect of the LNG tank is avoided.

The invention discloses a marine absorption refrigeration air conditioning system and a working method thereof. The system comprises an absorption refrigeration unit, a waste heat recycling loop and a seawater loop. The method comprises the steps that when cold supplying is conducted in summer, ship main and auxiliary engine cylinder sleeve cooling water is taken as a heat source for a generation cavity of the absorption refrigeration unit, and seawater is taken as a cold source for an absorption cavity and a condensation cavity in the loop; when heat supplying is conducted in winter, heat supplying is achieved by directly taking the cylinder sleeve cooling water as a heat source. According to the marine absorption refrigeration system, a traditional marine compression type refrigeration system is replaced, therefore, consumption of a marine air conditioning system on marine power is effectively reduced, marine waste heat and exhaust heat are fully utilized, the heat efficiency is increased by about 20%, and the overall marine energy source utilization efficiency is greatly improved.

The invention discloses a triple co-generation system for heating cargo oil and ballast water and performing refrigeration by waste heat of an oil tanker. The system comprises a waste heat boiler, a hot water pump, a generator, an expander, a compressor, a cargo oil hating coil, a condenser, an evaporator, a working medium pump, a cooling water pump, a ballast water heating coil, a first valve, a second valve, a third valve, a fourth valve, a fifth valve and a connecting pipeline, wherein the outlet of the generator is connected with the first valve and the third valve which are used for enabling the cargo oil heating coil or the expander to work respectively, the generator forms a loop together with the cargo oil heating coil through the first valve, and the outlet of the cargo oil heating coil is connected to the inlet of the generator; the outlet of the generator forms an organic Rankine cycle together with the expander, the condenser and the working medium pump through the third valve; the compressor forms a refrigeration cycle together with the condenser, the fourth valve and the evaporator. According to the system, the three functions of heating cargo oil and ballast water and performing refrigeration are realized by recovering the waste heat, and the energy-saving effect is remarkable.

The invention provides a ship epidemic prevention air-conditioning system and a using method thereof. The system comprises a fresh air pipe, a combined air conditioning box, an air supply pipe, an airreturn pipe, an exhaust pipe and a heat exchanger. Wherein one end of the fresh air pipe is communicated with the outside, the other end of the fresh air pipe is connected into an air inlet of the combined air conditioning box through the heat exchanger, an air outlet of the combined air conditioning box is connected with an air supply pipe, and the other end of the air supply pipe is connected with cabin air distributors; one end of the air return pipe is connected with an air return port of each cabin, and the other end is connected with the air inlet of the combined air conditioning box; and one end of the exhaust pipe is led out from the air return pipe and is led to the outside after passing through the heat exchanger. In a conventional mode, heat exchange is conducted in the mode that fresh air and return air are directly mixed, and efficient energy utilization is kept; in an epidemic prevention mode, non-contact heat recovery of fresh air and return air can be achieved, whole ship pollution caused by the fact that fresh air and old air are mixed and sent to cabins is avoided, meanwhile, air conditioning is conducted through a frequency conversion device, and noise and energy consumption are reduced.

An energy-harvesting compute grid includes computing assemblies that cooperate with mobile energy harvesters configured to be deployed on a body of water. The plurality of energy harvesters are positioned on and move adjacent to an upper surface of a body of water, and the locations of the energy harvesters can be monitored and controlled. The wide-spread gathering by the harvesters of environmental data within that geospatial area permits the forecasting of environmental factors, the discovery of advantageous energy-harvesting opportunities, the observation and tracking of hazardous objects and conditions, the efficient distribution of data and / or tasks to and between the harvesters included in the compute grid, the efficient execution of logistical operations to support, upgrade, maintain, and repair the cluster, and the opportunity to execute data-gathering across an area much larger than that afforded by an individual harvester (e.g., radio astronomy, 3D tracking of and recording of the communication patterns of marine mammals, etc.). The computational tasks can be shared and distributed among a compute grid implemented in part by a collection of individual floating self-propelled energy harvesters thereby providing many benefits related to cost and efficiency that are unavailable to relatively isolated energy harvesters, and likewise unavailable to terrestrial compute grids of the prior art.

The invention discloses a whole sea area ship air conditioning system and a control method for the ship air conditioning system. The ship air conditioning system comprises a traditional seawater source heat pump system, a ship waste heat system and a seawater feed system. A device is adjusted through switching of pipelines, and the effects that refrigerating is conducted in summer, and heating is conducted in winter are achieved. When a ship sails in a cold sea area, a seawater source heat pump and the waste heat of a ship main engine are coupled to supply heat to the ship. When the ship sails in a high-temperature sea area, the contractible pipelines are put down, deep seawater serves as a cold source of a ship air conditioner, and at the moment, partial seawater is used for cooling an air conditioner compressor through a compressor cooling system. According to the whole sea area ship air conditioning system and the control method for the ship air conditioning system, the technical obstacle that a common seawater source heat pump system cannot be operated in the whole sea area is overcome, meanwhile, the waste heat of the ship and the cold source and a heat source of the seawater are effectively utilized, the utilization rate of ship energy is increased, the ship energy is saved, and thus the ship can sail in a low energy consumption, low emission and high energy efficiency mode no matter in which sea area all around the world.

The invention discloses an efficient and energy-saving ship air conditioning system which comprises a water source hot pump air conditioning device. The water source hot pump air conditioning device comprises a water source air conditioning evaporator, a water source air conditioning compressor and a water source air conditioning condenser, the water source air conditioning condenser is connected with a waste heat recovery system, and the water source hot pump air conditioning device is connected with a water source water circulation system and an air conditioning water circulation system through four valves. The efficient and energy-saving ship air conditioning system integrates a ship system and an air conditioning system together; firstly, waste gas produced by a marine diesel engine and waste heat produced by water source hot pump air conditioning condensation can be sufficiently utilized, and therefore the purpose of effectively utilizing energy is achieved; secondly, people on a ship can use heat byproducts all year round, and therefore the corresponding cost is reduced. In addition, the efficient and energy-saving ship air conditioning system recycles waste heat which is originally emitted to the environment, carbon emission is reduced, and energy conservation and environment protection are achieved.

Ballast and / or cooling water biocidal treatment and disinfection systems and techniques are provided. The systems utilize oxidation reduction potential control to regulate addition, or concentration of an electrocatalytically generated biocidal agent to disinfection levels in ship buoyancy and to biofouling levels in ship cooling water systems. The disinfection and biofouling control systems provide suitable treatment while reducing the potential for corrosion of ship components and, in some cases, undesirable disinfection byproducts.