43results about How to "Short travel time" patented technology

A system for providing the reliable and numerically efficient generation of time-optimum trajectories with easy-to-track or continuous acceleration profiles for simple and blended moves of single- and multi-arm robotic manipulators, such as an extension and retraction move along a straight line or a rotary move following a circular arc, with velocity, acceleration, jerk, and jerk rate constraints. A time-optimum trajectory is the set of the position, velocity, and acceleration profiles which describe the move of a selected end effector along a given path in the shortest time possible without violating given constraints, with a special case being an optimum abort trajectory, which brings the moving arm into complete rest in the shortest time. The invention involves firstly identifying the set of fundamental trajectory shapes which cover all possible combinations of constraints for a given category of moves, e.g., a move along a straight line or along a circular arc; next, decomposing the fundamental shapes into segments where a single constraint is active; and, then, determining the time optimum paths in the segments. As a result, a unique design of time-optimum trajectories is produced based on a set of pre-defined trajectory shapes. The invention also involves the blending of simple moves into a single trajectory by decomposing trajectories of the individual moves into their orthogonal components and overlapping them for a given time interval, which results in a non-stop move along a smooth transfer path.

A system for controlling the elevators in an elevator system based on passenger presence. The elevator system includes a number of elevators (1A . . . 1H) wherein first sensor members (2, 2A . . . 2H), second sensor members and additional sensor members are arranged in a waiting area of each elevator (1A . . . 1H) on each floor (F, F1, F2, F3 . . . Fn). The first, second and additional sensor members are fitted to give information about the presence and number of passengers waiting to go either up or down for an elevator at least in the waiting area in question. A controller is provided for controlling the elevators. The controller receives information from the first, second and additional sensor members about the presence and number of passengers waiting for an elevator and to control the movement of the elevators of the elevator system utilizing the information received from the first, second and additional sensor members.

A device for a traffic flow assistant for a vehicle includes a surroundings sensor system, which recognizes traffic-relevant objects on a traffic lane, on which the vehicle is traveling, and on at least one further adjacent lane, gaps in the traffic are recognized with the aid of the surroundings sensor system and vehicle-dynamic parameters of the objects are determined and future gaps in the flow of traffic are able to be predicted therefrom. For these recognized gaps and predicted gaps, lane change options are ascertained and, from this and the present and / or predicted presence of gaps in the traffic suitable for changing lanes and the vehicle-dynamic state of the vehicle, a signal for the lane selection is generated, which is dependent on the lane change options and an optimization strategy.

This invention is directed to methods and systems of online mapping and planning driving tours. The invention may include a user interface capable of displaying a map with one or more destinations and / or displaying a travel route to visit each destination. The travel route may vary based on customizable options. The invention may also provide a tour summary that may show the driving directions for the travel route.

The embodiments of the present invention provide an optimal path planning method and an optimal path planning apparatus based on big data. The optimal path planning method comprises: counting a starting point and an ending point, and counting all path information and average traffic times thereof; storing the all path information of the starting point and the ending point and the average traffic times thereof; and through the starting point information and the ending point information entered by a user, recommending the multiple paths to the user from the stored multiple paths having the samestarting point and the same ending point according to the average traffic times from short to long. According to the present invention, the dynamical change of the paths are planned, and the path withthe smallest average vehicle traffic time is used as the optimal path, such that the shortest traffic time is ensured, the vehicles are reasonablely diverted, and the optimal experience is provided for the user.

A case lid assembly is formed by integrally fitting a brush holder formed of resin and a terminal holder formed of resin to opposite sides of a metal plate which supports a bearing. The brush holder supports a pair of brush bases. The terminal holder supports a PTC element and a pair of electrically conductive members. The electrically conductive members have receptacle terminals and brush base connection portions. Tip ends of the brush bases pass through the metal plate, and come into contact with the brush base connection portions of the electrically conductive members to thereby be electrically connected thereto. The PTC element is accommodated within a PTC element insertion portion of the brush holder which extends through the metal plate in a thrust direction.

The invention discloses an underwater low-disturbance separation device and belongs to the technical field of mechanical structures. The underwater low-disturbance separation device is applied to a vertical floating warhead of a long-range self-propelled naval mine. Due to the low-disturbance separation function of the underwater low-disturbance separation device, the initial launching disturbance of an engine can be reduced, finally the quality of a floating trajectory is improved, and trajectory distribution is reduced. In the service period, the vertical floating warhead is moored underwater in a two-point mode through the separation device and a mooring system installed at the tail portion of the vertical floating warhead so as to be concealed for waiting to make an attack; when an attack instruction is received, the engine is started, and the internal pressure of the engine is rapidly increased through generated fuel gas; when the internal pressure reaches a certain value, a limiting plug of the separation device is pushed to cut off a shear pin and move downwards, and limiting on a steel ball is relieved; and when the working pressure of the engine is larger than the environment pressure, an inner shell of the separation device moves and is separated from an engine connecting flange, a connecting rod is driven to disengage from the vertical floating warhead, and the warhead is separated from the mooring system and starts to vertically float to attack a target. Sealing, underwater two-point mooring, underwater ignition liberation, underwater corrosion resistance, parasitism resistance and the like of the underwater floating warhead can be realized through the underwater low-disturbance separation device.

The invention relates to a road network building and evolving method improving travel efficiency. The method includes the following steps that 1, an initial road network is built with the connection degree between nodes serves as a standard; 2, an update scheme is selected for the built road network, the road network is updated according to the selected scheme, and it is guaranteed that all roads in the updated road network meet the requirements of the three-grade service level. According to the method, travel behaviors of travelers are fully considered, a road network structure and a grade configuration method are disclosed with meeting travel requirements and improving travel efficiency as driving force,, effective road resources can be fully used, and travel time can be shortened to the largest extent.

The invention discloses a driving path planning method and system based on accident risk cost, and the method comprises the steps: obtaining historical traffic accident data, and carrying out the preprocessing of the data; establishing an accident risk cost evaluation index system according to historical traffic accident data; determining the weight of each index, and determining the accident risk cost of each road section according to an accident risk quantification model; and constructing an example network, and based on the starting point, the terminal point, the accident risk cost of each road section and the travel time of each road section, adopting a K shortest path solving algorithm to obtain an optimal path. According to traffic accident data, a risk evaluation system is constructed from accident characteristics, an accident risk quantification model based on an entropy weight method is established, and a path planning algorithm comprehensively considering risk cost and passing time is designed, so that route guidance is provided for driving of a driver, and driving safety is improved.

A double-layer cutting device for a motor of a profiled plate machine belongs to the technical field of manufacturing metal cool-bending sheet processing device. The device mainly comprises an uprightpost (22), the two ends of which are fixed on a lower mounting plate (1) and an upper mounting plate (8), a knife board mounting frame (15) provided with a lower cutter (17) of an upper layer and a upper cutter (19) of a lower layer, a guide rod (2), a vertical bearing seat (13), the two ends of which are provided with transmission shafts (14), an electromotor (21), an eccenter (12) provided witha brace, a sliding bush (4), an active plate (3) respectively provided with the upper cutter (16) of the upper layer and the upper cutter (18) of the lower layer, an optically controlled angle seat (10) provided with an inductor (11), an induction baffle (9), a non-oil lubrication shaft sleeve (25) arranged in the slide sleeve (4) and fixed on the active plate (3), etc. The device has the advantages of compact integral structure, stable working, high reliability and short journey time, thus quickening efficiency of a whole production line; the surface of the plate after being sheared is beautiful and has no deformation.