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234 results about "Space planning" patented technology

Double-layer personification motion planning method for seven-freedom-degree simulated human mechanical arm

The invention discloses a double-layer personification motion planning method for a seven-freedom-degree simulated human mechanical arm, and belongs to the technical field of the mechanical arm control. The problems that the current seven-freedom-degree simulated human mechanical arm path planning method based on a Bi-RRTX algorithm is not suitable for the task space planning of the simulated human mechanical arm, and the path of an end effector and the mechanical arm configuration of the simulated human mechanical arm cannot be optimized at the same time can be solved. The method comprises the steps of planning a collisionless path for the end effector, executing the smoothing treatment to the collisionless path, calculating all usable mechanical arm configurations, selecting an optimal mechanical arm configuration set according to the kinematics characteristic of a human arm and controlling the simulated human mechanical arm to successively complete all arm configurations in the optimal mechanical arm configuration set. In the step of planning the collisionless path, an end new growth path point validity judgment method based on arm configuration description is used for replacing the collision detection method in the current Bi-RRTX algorithm. The method is suitable for the double-layer personification motion planning of the seven-freedom-degree simulated human mechanical arm.
Owner:HEFEI HEBIN INTELLIGENT ROBOTS CO LTD

Seven-degree-of-freedom redundancy mechanical arm task constraint path planning method under Descartes space

ActiveCN110653805ASolve the problem that the optimization of the terminal trajectory cannot be guaranteedProgramme-controlled manipulatorJointsSimulationControl theory
The invention provides a seven-degree-of-freedom redundancy mechanical arm task constraint path planning method under a Descartes space, and relates to a redundancy mechanical arm task constraint pathplanning technology. A collision-free path is planned for a seven-degree-of-freedom mechanical arm end executor in the Descartes space for achieving task constraint, and the problem that an existingplanning method is mostly and only suitable for joint space planning, but can not ensure optimization of the end track is solved. According to the seven-degree-of-freedom redundancy mechanical arm task constraint path planning method under the Descartes space, an improved FMT* planning algorithm is adopted in the Descartes space, and the end collision-free path meeting the task constraint is planned out for a mechanical arm, so that the optimization of the end track is achieved, and the movement reasonability of the mechanical arm is ensured. The method comprises the steps that a description method of a mechanical arm end constraint position space based on a task function under the Descartes space is provided, Gaussian sampling is used for replacing a sampling scheme of an original algorithm, distance measurement based on the previous constraint position space is put forward, and the effectiveness of a sampling point and the effectiveness of local connection are judged with the adoption of a mode based on arm configuration description.
Owner:XIAN UNIV OF SCI & TECH

Unmanned aerial vehicle cluster path planning method and system based on artificial potential field method

The invention discloses an unmanned aerial vehicle path planning method and system based on an artificial potential field method. The method comprises the steps: dividing a space planning region intoa plurality of discrete three-dimensional space grids according to space information grids, and removing the three-dimensional space grids only containing obstacles; acquiring position information ofunmanned aerial vehicle clusters; and clustering and grouping the unmanned aerial vehicle clusters, and generating a path planning scheme of each clustering center after clustering and grouping of theunmanned aerial vehicle clusters according to an artificial potential field method, wherein the path planning scheme of each group of unmanned aerial vehicles after clustering and grouping of the unmanned aerial vehicle cluster is consistent with the path planning scheme of each clustering center. According to the invention, the space planning area is divided through a grid method, unequal division is carried out on the vertical height, grids where obstacles are located are removed, the search space is reduced, the calculation efficiency is improved, the time consumed for path planning through the artificial potential field method is shorter, the method is more suitable for a dynamic environment, the search efficiency is improved on the premise that the planning quality is guaranteed, andthe maneuverability of a path finding algorithm is enhanced.
Owner:NAT UNIV OF DEFENSE TECH

Method and device for constructing 'one graph' of territorial space planning and storage medium

The invention relates to the technical field of territorial space planning, and discloses a method and device for constructing a territorial space planning 'one graph' and a storage medium. The methodcomprises the steps of obtaining territorial spatial association current situation data; wherein the territorial spatial association current situation data comprises three-way result data, basic surveying and mapping data, resource survey data and resource perception data; performing data format conversion processing on each territorial spatial association status data to convert the data format of each territorial spatial association status data into a target data format; coordinate conversion processing is performed on each territorial spatial association status data, so that the coordinatesof each territorial spatial association status data can be converted into coordinates under a target coordinate system; generating a working base map according to the processed territorial space association current situation data; and gathering territorial space planning data in the working base map so as to form a territorial space planning'one map '. According to the method, the accuracy of theconstructed territorial space planning 'one graph' is effectively improved.
Owner:GUANGZHOU URBAN PLANNING & DESIGN SURVEY RES INST

Real-time browsing method for three-dimensional underground space full-element model

The invention discloses a real-time browsing method for a three-dimensional underground space full-element model, and relates to a technology for displaying virtual reality on a display screen. The method comprises the following steps of performing unification processing on underground space source data; performing dynamic three-dimensional model construction on stratum data; performing entity model construction on underground space data except the stratum; and performing real-time mutex scheduling browsing on three-dimensional underground space full-element data. The method has the advantages that: on the basis of preprocessing the data, real-time update is performed through seamless integration of the three-dimensional space data in syntax, semantics and model level with a data mining method, so that effective integration of multi-source data and efficient creation of three-dimensional scenes of underground space of various scales are realized, dynamic real-time scheduling browsing of the underground space full-element data model is realized, and the scientificity and safety of urban underground space planning are improved; and the unified display, management and analysis level of the underground space is improved.
Owner:星际空间(天津)科技发展有限公司

Side milling error compensation device based on non-extended straight-line surface and cutter spacing planning method of side milling error compensation device

The invention relates to the field of machining, in particular to a side milling error compensation device based on a non-extended straight-line surface and a cutter spacing planning method of the side milling error compensation device. The side milling error compensation device comprises a clamping disc, a workpiece and a milling cutter arranged above the workpiece and used for side milling, and the workpiece is arranged on the clamping disc. The side milling error compensation device is characterized by further comprising a three-dimensional scanner, a microcomputer, a stand column and a cutter spacing compensation mechanism; the cutter spacing compensation mechanism is arranged below the clamping disc; a non-extended straight-line surface five-axis side milling cutter path is planned by adopting a four-point offset manner, whether interference exists or not is judged in real time in an online manner, online adjustment is performed according to the judging result, collision in the machining process is avoided while the machining error is reduced, and the purpose of rapid and efficient machining is achieved; and the generated cutter spacing is further optimized and completed in cooperation with the error compensation device, and the error is further lowered.
Owner:BEIJING INSTITUTE OF TECHNOLOGYGY

Temporary road arrangement method for mountainous buildings based on BIM

The invention relates to a temporary road arrangement method for mountainous buildings based on the BIM. The method includes the following steps that a three-dimensional integral BIM model of the mountain buildings is built; a starting point, an end point and a boundary condition of a main road in temporary roads constructed for the mountain buildings are determined; a space planning set of the main road in the temporary roads constructed for the mountain buildings is determined, and an optimally planned arterial road is obtained through analysis; according to non-covered temporary-road regionof a tower crane of each individual building, a first-level branch road is built on the base of planning of the temporary roads constructed for the mountain buildings; according to the non-covered temporary-road region of the tower crane of each individual building, and secondary branch roads of the temporary roads constructed for the mountain buildings are sequentially built until each temporaryroad reaches the covered region of the tower crane of each individual building; construction and maintenance of specific trunk-line temporary roads and the construction base layer and surface layer of each level of branch temporary road are completed. Compared with the prior art, the method has the advantages of being reasonable, accurate, efficient, applicable, economical and the like.
Owner:SHANGHAI ERSHIYE CONSTR CO LTD +1

Welding power source power output change and arc welding robot motion closed-loop control method

The invention discloses a welding power source power output change and arc welding robot motion closed-loop control method. Welding current setting, welding voltage setting and wire feeding speed setting are all achieved through initialization panel analog quantity input setting or are provided for a welding power source by a robot upper computer controller through looped network or analog quantity IO interface initialization, are subjected to initial distribution through a welding power core processing mechanism, and are output to an electric arc load, and load power is fed back to a power core control unit when changing, the core control unit conducts processing and achieves interactive communication with an industrial arc welding robot controller, and a robot space planning track is controlled coordinately. When space speed of the robot changes, the robot and a power source achieve communication coordinately, the power source can change welding output currents, voltage and a wire feeding speed value according to the change quantity of the robot. The welding power source power output change and arc welding robot motion closed-loop control method can be widely used for the working conditions with complex robot automatic welding, and labor productivity is improved.
Owner:南通市慧冠智能科技有限公司

Integrated usefulness assessment method for key infrastructure in clustered towns

The invention discloses an integrated usefulness assessment method for key infrastructure in clustered towns. The method comprises an investment gain assessment index system for the infrastructure in clustered towns, a supply efficiency assessment index system for the infrastructure in clustered towns and a space usefulness assessment system for infrastructure in clustered towns. The investment gain assessment index system for the infrastructure in clustered towns consists of an investment level index and an integrated gain index. The supply efficiency assessment index system for the infrastructure in clustered towns consists of a supply index and a demand index. The space usefulness assessment system for infrastructure in clustered towns consists of a space usefulness assessment index system, a standard level of an infrastructure service threshold value, and a space usefulness level of the infrastructure. The level indexes are multiplied by their respective weight values and are then accumulated for an integrated assessment score so as to determine the suitability level of each unit for space usefulness. According to their weight values, the space usefulness of the infrastructure in clustered towns is analyzed. The method of the invention is capable of providing simulated planning for key infrastructure construction and networking development as well as providing strategies for auxiliary decisions and space planning.
Owner:SHANDONG JIANZHU UNIV

Space planning scene simulation method and system

PendingCN112035584AAvoid Simulation BiasEfficient use of the scale of expansionDesign optimisation/simulationGeographical information databasesData setData pre-processing
The invention provides a space planning scene simulation method and system. The method comprises the following steps: S1, preprocessing construction land data of a to-be-simulated prediction area; s2,determining influence factors of construction land expansion, and classifying the influence factors; s3, performing spatial quantization processing on the determined influence factors; s4, constructing a training sample data set which is used for carrying out training learning of a simulation model on various models; s5, comparing and evaluating training results; s6, predicting the future land scale, wherein the future land scale is used for obtaining the total growth scale of the construction land in the predicted target year; and S7, obtaining construction land expansion simulation resultsin different scenes in the future. The system corresponding to the method comprises a data input module, a data processing module, a parameter setting module, a land scale prediction module and a result generation module. According to the method, influence factors can be comprehensively considered, simulation deviation is avoided, construction land expansion prediction is more accurate, and support is provided for urban construction; meanwhile, the working intensity of planning workers is reduced.
Owner:BEIJING THUPDI PLANNING DESIGN INST
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