Abstract: A highly reliable facility evaluation information (rating information) that is free of arbitrary ratings. A server system includes a facility rating information creation and updating unit that grants a rating with regard to a facility to be rated on the basis of parking information. The parking information is obtained by assessing whether the present position of a mobile body, which is being carried together with a vehicle, has been parked in the area of the facility to be rated whereat parking is possible. A facility rating provision unit that outputs the rating regarding to the facility to be rated, which has been granted by the facility rating information creation and updating unit.

Abstract: A position locating system to determine relative position information between a marine vessel and a trailer includes a first GNSS receiver located on one of a marine vessel and a trailer to receive a positioning signal from a positioning satellite, a second GNSS receiver located on the other of the marine vessel and the trailer to receive the positioning signal from the positioning satellite, a registering unit to register a current position of the trailer based on the positioning signal received by the first GNSS receiver when the trailer is stationary, a direction obtaining unit to obtain a direction of the marine vessel, a generating unit to generate correction information in real time based on the current position and the positioning signal received from the positioning satellite by the first GNSS receiver, and a position locator to determine relative position information between the marine vessel and the trailer.

Abstract: A position locating system to locate relative position information between a marine vessel and a trailer includes a laser scanner on a first object, that is one of a marine vessel and a trailer for the marine vessel, to reciprocatingly scan a predetermined range in a horizontal direction with laser light, a laser light receiver on a second object, that is the other of the marine vessel and the trailer, to receive laser light emitted from the laser scanner, and a position locator configured or programmed to locate relative position information between the marine vessel and the trailer based on light receiving timings when the laser light emitted from the laser scanner is received by the laser light receiver.

Abstract: A position locating system that locates relative position information between a marine vessel and a trailer includes a wave signal generator located on a first object that is one of the marine vessel and the trailer to emit wave signals from at least three different positions having known relative positional relationships with each other, a wave signal receiver located a second object that is the other of the marine vessel and the trailer to receive the wave signal emitted from each of the positions of the wave signal generator, and a position locator configured or programmed to locate relative position information between the marine vessel and the trailer that includes at least a direction of the second object as viewed from the first object based on the wave signal from each of the positions received by the wave signal receiver.

Abstract: A fuel management system including a fuel pump and a flow meter to transfer and control remaining amounts fuel among fuel tanks mounted on a hull of a marine vessel includes first fuel flow channels corresponding to the fuel tanks to connect the fuel tanks to an upstream side of the fuel pump and the flow meter, and second fuel flow channels corresponding to the fuel tanks to connect the fuel tanks to a downstream side of the fuel pump and the flow meter.

Abstract: A fuel management system to improve accuracy of calibration data to convert an output value of a fuel gauge into a remaining amount of fuel in a fuel tank includes a fuel tank mounted on a hull of a marine vessel, a fuel gauge to measure a liquid level position of fuel in the fuel tank, and a controller configured or programmed so that in a range where an output value of the fuel gauge changes, measurement reference points are set based on the output value of the fuel gauge. When supplying fuel to the fuel tank, the controller is configured or programmed to obtain calibration data showing a relationship between the output value of the fuel gauge and a remaining amount of the fuel in the fuel tank by comparing an amount of fuel supplied to the fuel tank at each of the measurement reference points and the output value of the fuel gauge at each of the measurement reference points.

Abstract: A marine vessel having a propeller that provides propulsive force to the marine vessel, and a course control system. The course control system includes a course changing mechanism that changes a course of the marine vessel, and a controller configured or programmed to detect a sudden movement of the marine vessel originating from broaching caused by a following wave of the marine vessel, and upon detecting the sudden movement of the marine vessel originating from the broaching, control a rotation rate of the propeller and/or cause the course changing mechanism to change the course of the marine vessel.

Abstract: A system for flushing a cooling water pathway in a marine propulsion device includes a water control device, an electric power control device, a data communication module, and a controller. The controller controls the water control device to supply the water from a water source to the cooling water pathway to flush the cooling water pathway. The controller controls the electric power control device to supply electric power to the marine propulsion device during the flushing. The controller determines whether to end the flushing or not. When it is determined to end the flushing, the controller controls the electric power control device to stop the supply of electric power to the marine propulsion device, and controls the data communication module to notify the end of the flushing to a terminal of a user of the marine propulsion device.

Abstract: Methods and systems for performing machine learning include selecting first and second training data from one or more training sets in one or more databases. Mixed training data is formed by subtracting a value of each data element in the second training data from a value of a corresponding data element in the first training data. A machine learning process is trained using the mixed training to augment data used by the machine learning process.

Abstract: A watercraft rental system is used to rent an owner's watercraft to a user. The watercraft rental system includes at least one computer and a user terminal. The at least one computer communicates with the watercraft and records rental condition information of the watercraft. The user terminal provides borrowing request information to the at least one computer. The borrowing request information corresponds to a response to the rental condition information. The at least one computer executes a rental process of the watercraft based on the borrowing request information.

Abstract: Provided is an abnormality diagnosis device including: a physical quantity measurement processor configured to acquire, as time-series data, a physical quantity of an electric motor or a load; a feature parameter calculation processor configured to calculate feature parameters; a correlation function creation processor configured to create a correlation function for two or more feature parameters, and calculate a correlation coefficient corresponding to a measurement result of the physical quantity that changes depending on an abnormality occurrence state; a database configured to store in advance reference data in which a remaining time until a failure is caused and the correlation coefficient are associated with each other; and a diagnosis processor configured to extract from the reference data the remaining time corresponding to the correlation coefficient, and identify the remaining time until the electric motor or the load causes a failure or a part that has caused a failure.

Abstract: A high-pressure pump includes a pressurizing chamber forming portion, a suction passage forming portion, a seat member, a valve member, a cylindrical member, a needle, a movable core, a biasing member, a fixed core, and a coil including a winding portion. The coil generates an attractive force between the fixed core and the movable core when the winding portion is energized. The coil includes an outer cylindrical surface and multiple inner cylindrical surfaces that have different diameters. The multiple inner cylindrical surfaces are arranged in order of increasing diameter in a direction toward a pressurizing chamber. The movable core has an end surface that faces the fixed core, and the end surface of the movable core is located between a center, in an axial direction, of a smallest diameter one of the plurality of inner cylindrical surfaces and a center, in an axial direction, of the outer cylindrical surface.

Abstract: A communication apparatus for performing communication via an optical fiber includes a photoelectric converter configured to convert an optical signal input from the optical fiber into electricity through photoelectric conversion, and a functional unit configured to operate using the electricity converted from the optical signal by the photoelectric converter.

Abstract: In one aspect, the present disclosure discloses a charging system including a battery pack and a charger. The battery pack includes a first battery pack terminal, a second battery pack terminal, and a third battery pack terminal. The second battery pack terminal is spaced apart from the first battery pack terminal in an intersecting direction. The intersecting direction intersects a removal direction of the battery pack from the charger. The charger includes a first charger terminal, a second charger terminal, and a third charger terminal. The second battery pack terminal is arranged so as to pass through an area spaced apart from the third charger terminal in a process of removing the battery pack from the charger.

Abstract: A trim tab for a ship comprises a first portion and a second portion. The first portion is swingably mounted to a rear portion of a ship body. The second portion extends from the first portion and curves in a swing direction away from the ship body.

Abstract: A control device includes a determination means that determines, when a request is received in which a power amount that is requested to be supplied, and an energy source or a type of the energy source of the power amount are specified, whether or not a supply of electric power that satisfies the energy source or the type of the energy source and the power amount that are specified in the request is possible by referring to a table that manages a stored power amount stored in a storage battery for each energy source or for each type of the energy source, and a control means that causes the power amount specified in the request to be discharged from the storage battery when it is determined by the determination means that the supply of electric power is possible.

Abstract: A controller performs hydrolock prevention control when an engine is started. The controller determines whether a crankshaft rotates a predetermined number of times upon starting the engine without ignition of the engine. The controller performs the ignition of the engine after the crankshaft rotates a predetermined number of times.

Abstract: A posture control system for a hull includes a movable posture control plate. An outboard motor is attached to the hull and is movable with respect to the hull. A controller is configured or programmed to control movement of the posture control plate and movement of the outboard motor so as to control the posture of the hull.

Abstract: A power control device for controlling one or more secondary batteries for charging or discharging includes: a monitor unit configured to obtain an amount of power storage of each of the one or more secondary batteries; a secondary battery selection unit configured to select a secondary battery to be controlled from the one or more secondary batteries based on a target amount of power storage and an amount of power storage; and a secondary battery control unit configured to control a selected secondary battery.

Abstract: A light emitting element (151) is configured to emit detecting light (L1). A first lens (152) is configured to allow passage of the detecting light (L1). A first optical fiber (153) is configured to guide the detecting light (L1) to the first lens (152). A second lens (154) is configured to allow passage of reflected light (L2) that is the detecting light (L1) reflected by an object (200). A second optical fiber (155) is configured to guide the reflected light (L2) having passed the second lens (154) to a light receiving element (156). A processor (157) is configured to calculate a distance to the object (200) based on a time length from time when the detecting light (L1) is emitted from the light emitting element (151) to time when the reflected light (L2) is incident on the light receiving element (156).