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140results about How to "Effective planning" patented technology

Plant protection unmanned aerial vehicle task route planning method and plant protection unmanned aerial vehicle

ActiveCN107289950AComprehensive planning pathImprove precision coverageNavigational calculation instrumentsLine segmentRoute planning
The invention relates to a plant protection unmanned aerial vehicle task route planning method and a plant protection unmanned aerial vehicle. The method includes the following steps: 1) acquiring boundary information of a task region, and acquiring boundary lines of the task region according to the boundary information; 2) determining a task start side, and according to the boundary information of the task region, drawing a plurality of flight route line segments which are parallel with the task start side; 3) according to the task start side, determining simulation route heading direction, and performing route planning on the basis of the flight route line segments until all flight points in the task region are included, wherein the intersection points of the acquiring boundary lines and the boundary lines are the flight points. The planning method can effectively plan and scan all the flight points, so that all of the flight points are covered without missing point. The method can provide more comprehensive planning routes, and also increases accurate covering rate of the plant protection unmanned aerial vehicle during task, so that mis-spraying, wrong spraying and excessive spraying problems are reduced, and a phenomenon that the unmanned aerial vehicle flies out of the task region and bumps into obstacles can be avoided.
Owner:SHANGHAI TOPXGUN ROBOT CO LTD

Rail vertical irregularity estimation method and system based on extended Kalman filtering

InactiveCN104878668ALower runTimely detection of changes in vertical irregularitiesMeasuring apparatusVertical vibrationGyroscope
The invention discloses a rail vertical irregularity estimation method and system based on extended Kalman filtering. The system is characterized in that vibration acceleration sensors and gyroscopes are installed on a train body and a frame, the output ends of the vibration acceleration sensors, the gyroscopes and train speed sensors are connected to a central processing unit, and spatial sampling of train body vertical vibration, train body nodding angular speed, frame vertical vibration, frame nodding angular speed and the like is realized through train speed signals. A vehicle rail coupling system state equation is established according to a kinetic equation for a vehicle rail coupling model; a sensor observation equation is established according to signals acquired by all sensors; a filtering iterative equation is configured to obtain time updating equations and measurement updating equations of state estimation and estimation error covariance; an optimal state at each moment is obtained according to extended Kalman filtering, and rail irregularity estimation is finally obtained after inversion by using the time updating equation of the state estimation. The rail vertical irregularity estimation method and system based on extended Kalman filtering have the advantages of low cost, good engineering feasibility, simplicity in operation and online real-time detection.
Owner:NANJING UNIV OF SCI & TECH

Internet of Vehicles intelligent vehicle-mounted information terminal and information interaction method

The invention discloses an Internet of Vehicles intelligent vehicle-mounted information terminal, which comprises a central processor module, an information acquisition module, a display module, a communication module, a positioning module, a storage module and a voice module in mutual connection. The invention also discloses an information interaction method among the Internet of Vehicles intelligent vehicle-mounted information terminals. a first vehicle-mounted information terminal triggers at least one second vehicle-mounted information terminal surrounding to build a first relationship with the first vehicle-mounted information terminal through a communication module and triggers to build a second relationship with at least one third vehicle-mounted information terminal, the first vehicle-mounted information terminal performs information interaction in a corresponding relationship type with at least one second vehicle-mounted information terminal or the third vehicle-mounted information terminal respectively, the information interaction range of the vehicle-mounted terminal can be expanded, more vehicles can thus perform vehicle-mounted information interaction intelligently, different information interaction with a different vehicle-mounted terminal can be carried out, and thus, a more intelligent function is provided on the basis of sharing of multiple pieces of information.
Owner:东莞市信瑞智能科技有限公司 +1

Interactive agenda for personal and groups activities and projects management

A system and method of planning and managing tasks to be worked out by many entities. The each task has task details relevant thereto including entities to whom task will be assigned and auto identification of task controller (The entity assigning these tasks). The auto identification of task assignee can be altered by system administrator or any other user which has been allowed to do so. The task assignee can also set certain criteria to help and judge weather the task has been completed successfully. These criteria may include pre conditions, before conditions, alternative tasks, next tasks and steps that need to be taken after task execution and also the conditions which should be automatically completed after the task has been executed. The system also facilitate the entities to communicate with other peers through instant communication tools such as Instant Messenger and other tools such as Email. The presented system also help the entities to transfer tasks to the peers through different devices such as screens, message boards, mobile devices, pagers and other devices that can be useful for this purpose. The said system also facilitate for planning and help the users in brainstorming and provides users online help in order to plan effectively. The whole system is based on different sort of hierarchies such as users, groups and projects in order to organize system entities.
Owner:BEHBEHANI HASSAN

Intelligent vehicle target tracking system and method employing DSRC and vehicle sensor in combination

ActiveCN105809126ASolve problems such as susceptibility to occlusionExpand the range of perceptionCharacter and pattern recognitionObservation dataEngineering
The invention discloses an intelligent vehicle target tracking system and method employing DSRC (Dedicated Short Range Communications) and vehicle sensor in combination and relates to the technical field of intelligent vehicle target tracking and vehicle communication. The system includes a vehicle-sensor-based target detection module, a DSRC communication module, a target tracking module and a vehicle locating module. The target detection module detects location information of vehicles and pedestrians in the surrounding of a main vehicle through the vehicle sensor. The DSRC communication module receives target vehicle self movement state and identify information delivered by target vehicles having a DSRC-based information issuing function in a communication range. The target tracking module performs data association according to detected target observation data and modifies an association result according to the state and the identity information of the target vehicles, then performs tracking filtering on the modified association result and obtains more accurate movement states of the targets in the surrounding. The vehicle positioning locating module is used for obtaining the movement state of the main vehicle for delivering. The system and method provided by the invention improves intelligent vehicle target tracking precision.
Owner:CHONGQING UNIV OF POSTS & TELECOMM

Movable-type static synchronous compensator with compact structure design

The invention discloses a movable-type static synchronous compensator with a compact structure design. The compensator has high compensation capacity and rapid adjusting speed and compact structure, is convenient for transportation, and can be rapidly transferred, installed and put into operation at the urgent place needs reactive power support, thus the planning, the arrangement and the operation of a dynamic reactive power compensation device of a power grid are more flexible and effective. The movable-type static synchronous compensator comprises three functional module containers with the same structure, an auxiliary equipment container and a movable base, wherein, the functional module container comprises a single-phase converter chain and a converter chain arrester; the auxiliary equipment container comprises a control protective system, a water-cooling system and a three-phase starting loop; and the movable base comprises a connection reactor, a main breaker, an isolation switch and an earthed switch. The compensator provided by the invention has the obvious advantages of rapid response speed, wide adjustment application, low harmonic output content, adoption of compact design, mobility, less occupation area and the like.
Owner:CHINA EPRI SCIENCE & TECHNOLOGY CO LTD +2

UAV trajectory planning method and device based on A* algorithm and storage device

The invention provides a UAV (Unmanned Aerial Vehicle) trajectory planning method and device based on an A* algorithm and a storage device. The UAV trajectory planning method comprises the following steps: S1: loading data; S2: pre-processing; S3: loading an OPEN table; S4: judging whether the OPEN table is empty; S5: if so, reaching a target point; S6: or else, placing a minimum cost point into aCLOSE table; S7: judging whether an end point is reached; S8: if so, completing the trajectory planning; S9: or else, expanding a neighbor node; S10: judging whether the neighbor node is empty; S11:if so, taking a parent node and judging whether the OPEN table is empty; S12: if so, continuing to take the parent node and judge whether the OPEN table is empty; S13: or else, returning to S6; S14: if the expanded neighbor node is empty, performing constraint processing; S15: judging whether the expanded neighbor node is in the CLOSE table; S16: if so, indicating that the point has been traversed, returning to S7; S17: or else, judging whether the point is stored in the OPEN table; S18: If so, calculating an evaluation function and returning to S4; and S19: or else, returning to S3. The UAV trajectory planning device is used to implement the UAV trajectory planning method. The UAV trajectory planning method and device provided by the invention can plan the trajectory of the UAV.
Owner:CHINA UNIV OF GEOSCIENCES (WUHAN) +1

Robot path planning method applied to weld joints

The invention provides a robot path planning method applied to weld joints. The method comprises the following steps of acquiring basic information of each weld joint, wherein the basic information comprises the length of a weld joint, endpoints coordinates, and whether having the directivity requirement or not; calculating a no-load path according to the endpoints coordinates of each weld joint;combining the basic information and the no-load path, calculating to obtain an optimal path through a genetic algorithm by ; initializing an initial value of the ant colony algorithm pheromone according to the optimal path; and combining the basic information and the initial value of the pheromone, calculating to obtain an optimal welding path by utilizing an ant colony algorithm. The method can be used for carrying out more effective process constraint on a robot moving path by acquiring the basic information of the weld joints, so that the weld joints meet the directivity requirements; an optimal solution obtained by utilizing the genetic algorithm is used for initializing the pheromone of the ant colony algorithm, so that the ant colony algorithm can quickly and effectively obtain the optimal solution; and the advantages of the two algorithms are complemented, so that the welding path capable of saving welding time and meeting the weld joints requirements is effectively planed.
Owner:GUANGDONG UNIV OF TECH

A TSP problem path planning method

The invention relates to a TSP problem path planning method. The method comprises the following steps: initializing; reading the position and calculating the distance; initializing a population through a greedy algorithm; replacing the worst individuals with randomly generated individuals; calculating the fitness; selecting; crossing; performing variation; randomly performing simulated annealing on the plurality of individuals; calculating the fitness; giving the contemporary optimal solution and the variant solution thereof to the first individual and the second individual respectively; and iterating until the termination condition is met. The population generated by the greedy algorithm has randomness and high quality, and optimization can be accelerated. A plurality of worst individualsare replaced by randomly generated individuals, so that the influence of differential solutions is reduced, and precocity is avoided. Some better solutions can be found through simulated annealing, and precocity and local optimization are avoided. The storage of the optimal solution and the variant solution of the optimal solution retains excellent information and increases population diversity.According to the invention, a shortest access path can be effectively and quickly planned, so that the method is an effective method capable of providing path planning for the TSP problem.
Owner:DONGHUA UNIV
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