106results about How to "Navigation safety" patented technology

A system that performs a method is disclosed. The system receives a current vehicle position from a position sensor. The system autonomously navigates a vehicle along a stored navigational path based on a comparison between the current vehicle position and one or more of a plurality of waypoints associated with the stored navigational path. While autonomously navigating the vehicle along the stored navigational path, the system determines, using the proximity sensor, whether an obstacle is present proximate to the vehicle. In accordance with a determination that the obstacle is present proximate to the vehicle, the system halts the autonomous navigation of the vehicle. In some examples, the position sensor includes a global positioning system receiver and the proximity sensor is an ultrasonic proximity sensor.

A short-term planned route from a start position that is a ship position at a first time up to an end position that is the ship position at a second time is designed based on a planned route, an estimated encounter marine phenomenon information, operation performance information measured on a ship, and a hull motion model of the ship, the estimated encounter marine phenomenon information being measured on the ship based on actually encountered marine phenomenon information. The short-term planned route makes a first evaluation function optimal, the first evaluation function containing: an index indicating an influence of a fluctuation portion between a planned position that is a ship position planned at the second time on the planned route and the end position; a fuel consumption index when the ship sails along the short-term planned route; and a safety index when the ship sails along the short-term planned route.

The invention provides a traffic route planning method, system and device. The method comprises steps as follows: an initial position and a target position of a user are acquired, and at least one route is generated according to the initial position and the target position; traffic accident record, length record and driving time record of each section of each route are inquired, a comprehensive evaluation value of each route is generated according to the inquired information, and the routes are sorted according to the comprehensive evaluation values. By means of the method, the system and the device, safe traffic route navigation can be provided.

The present invention relates to an embryos collector system used for the collection and careful selection of embryos, which maintains the fluid control from the uterus discharge fluids inside the collector device and the control of displacement of the embryos and mucosal in the interior of the device. This system includes a conduit system free of internal collision points where the embryos can safely navigate to a section on the device, in which the direction, force, and speed of the turbulent currents are controlled; thus, the embryos are not subjected to any trauma, cannot be trapped by the mucosal; nor dragged by the filtration mesh.

A system for use in a vehicle, the system comprising one or more sensors, one or more processors operatively coupled to the one or more sensors, and a memory including instructions, which when executed by the one or more processors, cause the one or more processors to perform a method. The method comprising capturing a current point cloud with the one or more sensors, determining an estimated location and an estimated heading of the vehicle, selecting one or more point clouds based on the estimated location and heading of the vehicle, simplifying the current point cloud and the one or more point clouds, correlating the current point cloud to the one or more point clouds, and determining an updated estimate of the location of the vehicle based on correlation between the current point cloud and the one or more point clouds.

Disclosed herein are an apparatus and method for generating a topological map for navigation of a robot. The method for generating a topological map for navigation of a robot, performed by the apparatus for building the topological map for the navigation of the robot, includes calculating the physical size of a single pixel on a metric map of a space in which a mobile robot is to navigate, extracting the physical coordinates of the pixel on the metric map, building node data and edge data for the navigation of the mobile robot using the physical coordinates, and generating a topological map for the navigation of the mobile robot based on the built node data and the built edge data.

The invention relates to a method to manufacture double-plate ships with foam plastic. The invention is characterized in that the method comprises the following steps: a twisted steel plate is used between an outside plate and an inside plate of the manufactured double-plate ship; the rust on the horizontal and vertical framework steel plates is removed by adopting the technology of sandblast and so on; adhesive is applied; aged pre-foamed polystyrene grains are filled, and are heated and expanded with high pressure heating steam so as to foam the grains. After the grains are cold, the foam is bonded with and is integrated with a steel structure between the outside plate and the inside plate. After the ship is smashed or strikes aground, the foam plastic inside the outside plate and the inside plate form buffering; the inside plate of the ship is not staved easily; and even if the outside plate is staved in, no water leaks. The invention has the advantages of high sailing safety coefficient of the ship, long service life and convenient corrective maintenance.

The invention discloses a four-rotor aircraft system of autonomous navigation power line inspection fault detection. The four-rotor aircraft system is composed of a ground upper computer, a flight control module, an ultrasonic ranging module, a transfer control module, a serial port expansion board, a GPRS communication module, a Beidou navigation module, a battery monitoring module, a camera and an image detection module. According to the system, the obstacles are avoided by using ultrasonic waves in line inspection of an aircraft, the power line fault is detected by using the camera and the image detection module, the detection result and the flight data are transmitted to the ground upper computer in real time through the GPRS communication module, the ground upper computer can also control the aircraft, the battery monitoring module monitors the electric quantity of the battery in real time in line inspection, whether the current aircraft requires to return to the charging point is predicted through calculation, and the aircraft can autonomously return to the charging point when the electric quantity is insufficient.

The invention discloses a robot control method, a robot and a readable storage medium. The robot control method comprises the steps that the position of an elevator of a corresponding floor is confirmed according to a scanned floor map; the position where the robot is located in front of an elevator door and right faces the elevator is marked as the elevator entrance point; and according to the elevator entrance point, the elevator wait area of the robot is confirmed, the distance between the elevator entrance point and the elevator is smaller than the distance between the elevator wait area and the elevator, the robot waits for the elevator in the elevator wait area, and when the elevator arrives and the door is opened, the robot moves to the elevator entrance point so as to enter the elevator from the elevator entrance point. The elevator position and the elevator entrance point are marked, when the robot executes the elevator taking task, the robot can wait in elevator wait area away from the elevator, after the elevator arrives, the robot is firstly guided to the elevator entrance point close to the elevator and then linearly advances towards the elevator along the elevator entrance point, it can be guaranteed that the robot safely enters the elevator, and the elevator wait experience and elevator taking safety of the robot and passengers are guaranteed.

The invention discloses a material delivery nacelle with parachutes, which comprises a hood (1), a cargo hold (2) and a parachute bay (3), wherein the front end of the cargo hold (2) is connected withthe hood (1), and the rear end of the cargo hold (2) is connected with the parachute bay (3); The parachutes (10) are arranged in the parachute bay (3). The parachute bay for parachutes is arranged on the material delivery nacelle, the parachutes are arranged in the parachute bay, the airdropping of the cargo is achieved without manual operation of the parachutes, and the airdropping efficiency is effectively improved.

The invention relates to a method and device for referencing between a data set, which describes geometrically the spatial model of a body, and the real physical environment in which the body is placed. A three-dimensional position reference body is used on the real body. The position reference body has one or more elementary bodies or markers whose 3-dimensional position can be detected with sensors and which define a fixed geometric reference with respect to the center of gravity of the body or to other body reference volumes. For registration, the position reference body and/or its elementary bodies are correlated in the data model and in the physical world.

The invention provides a hovercraft with a flowing ballasting structure that can automatically adjust a draft, and the hovercraft comprises: hull side walls formed by disposing wall body structures on the left and the right, wherein the wall body strucure is formed by disposing and combining space blocks from up to down and the space block contains a sealed space part for storing air interiorly; a bottom plate formed by mutually connecting the lower ends of the left and the right hull side walls; a ballast tank formed by the downward extension of the bottom plate and having a sealed space forfilling ballast water surrounded by the ballasting side wall body and the ballasting bottom plate; a hull lower side part which has a curve shape formed by the downward extension of the lower end part of the hull side walls and is open at the side facing the inner side of the hull; a diaphragm plate which connects the side part of the lower end of the hull and the ballasting side wall body, and forms several air pressure chambers which are open at the lower part and communicate with the the side part of the lower end of the hull; and a draft adjusting calandria with one end extending to the space part in the space block and the other end connected to an exterior air compressor, and with a draft adjusting valve disposed to control the supply or the exhaust of the compressed air.

The invention relates to a route planning method of an intelligent ship. The method comprises the following steps: a target ship plans a first ship route set of the target ship passing through a narrow water channel if it is determined that the target ship is located within a preset range away from the narrow water channel according to current electronic chart information, and the risk value of each ship route in the set is calculated to make the target ship execute a navigation path with the minimum risk value; and the target ship acquires own ship information and surrounding navigation obstruction information in real time, if the collision risk degree exceeds the preset safety threshold value, a second ship route set of the target ship passing through the narrow water channel is planned,and the risk value of each ship route in the set is calculated so as to enable the target ship to execute the navigation path with the minimum risk value. A safe and feasible path can be provided forthe intelligent ship to pass through the narrow water channel. In addition, the invention further provides a computer readable storage medium, computer equipment and a route planning device.

The invention discloses a navigation method based on an audio reproduction device, a navigation system and the audio reproduction device. The audio reproduction device comprises a direction pointer, wherein the direction of direction pointer has corresponding relation with the orientation of a user when the audio reproduction device is at a worn state; the navigation method comprises the following steps: obtaining direction data of the direction pointer; determining orientation data of the user according to the direction data; outputting a navigation instruction according to the orientation data, which is used for guiding the user to move according to a preset navigation route. The method realizes the fact that the user does not need to hold a mobile terminal to perform navigation in the orientation direction, and the audio reproduction device can free the hands of the user, so that the navigation process is more convenient and safer.

The invention discloses a multifunctional navigation mark. The multifunctional navigation mark comprises a floating body, the floating body is hemispherical, an upper chamber and a lower chamber are arranged in the floating body, a control device and a storage battery are arranged in the upper chamber, the control device comprises an acousto-optic image information processing module, a water flowmeteorological information processing module, a sonar information processing module, a magnetic field information processing module, a GSM system, an ALS system and a Beidou remote measurement and control module which are arranged in the control device, a filler is arranged in the lower chamber, a hemispherical transparent cover is arranged on the upper surface of the floating body, a signal lampis arranged in the hemispherical transparent cover, a vertical supporting rod is arranged at the top of the hemispherical transparent cover, a support is arranged at the top end of the vertical supporting rod, an antenna with a first information collecting probe is arranged on the support, an inhaul cable is arranged at the bottom of the floating body and connected with a positioning anchor, and the inhaul cable is provided with a first signal transmission line and a second signal transmission line. Self-positioning, maintenance-free, anti-corrosion, anti-rollover, waterproof biological adsorption, non-combustibility, high strength, radar wave absorption and multi-angle monitoring are realized.

The invention discloses an automatic shortest route planning method based on AIS data. The automatic shortest route planning method comprises the following steps: A, dividing global longitude and latitude into a two-bit grid matrix; judging whether AIS data appears in each grid or not, if the AIS data appears, determining the grid as a navigable grid, and determining the distance between all adjacent navigable grids; B, converting the longitude and latitude of a given starting point and a given arrival point into corresponding grid position coordinates in a two-bit grid matrix; and C, performing cyclic search in the two-bit grid matrix through an ant colony algorithm so as to output a shortest route from a starting point to an arrival point. The method has the advantages that the collectedAIS data is screened under the condition that a large number of electronic nautical charts are not used such that an airline meeting the actual application requirements is constructed; ship navigation conditions under complex navigation factors are fully studied by utilizing AIS data updated in real time such that safe navigation of a target ship is ensured; and a shortest route for avoiding falling into local optimum is obtained by using an ant colony algorithm.