146 results about "Sequence planning" patented technology

The invention relates to an intelligent planning method for an assembly sequence of a high-loading-density aviation equipment product. The intelligent planning method solves the problems that the efficiency is low and errors are prone to occurring when the assembly sequence is manually formulated. Comprising the following steps: Step 1: establishing an extraction method and a standardized expression method of three types of object information of parts, an assembly process and assembly constraints in a process information model, and forming an assembly process information model integrating a product structure, an assembly process, an assembly tool and the like; 2, related assembly process knowledge and resources are carded, an interference matrix, a connection matrix and a support matrix are formed to serve as input and constraint conditions of assembly sequence planning, an assembly sequence solving space is formed, an assembly sequence planning mathematical model is finally formed, and an assembly sequence candidate set is generated; step 3, carrying out the construction of an assembly sequence evaluation index; designing an assembly sequence evaluation index calculation mode, constructing an assembly sequence evaluation index calculation method, establishing a multi-criterion assembly sequence optimization method, and supporting acquisition of an optimal assembly sequence.

The invention relates to the technical field of building information models, in particular to a BIM-based fabricated building collaborative design method and system, and the method comprises the following steps: based on project personnel information, analyzing role positioning and responsibility ranges of a plurality of designers, adjusting the editing authority of the designers, matching task demands, and according to input design information, carrying out the collaborative design of a fabricated building; and identifying the various types of building elements and matching the labeling information, and generating the labeling information of the building elements. According to the method, by analyzing role positioning and responsibility ranges of multiple designers, allocating design editing permissions, improving the accuracy and efficiency of project management, analyzing building design and carrying out conflict detection on building elements, design errors are reduced, and by combining structural stability analysis, problems are foreseen and solved in the early stage of design, and the design efficiency is improved. According to the method, modification in the construction stage is avoided, project budget is effectively controlled through construction sequence planning, resource demand prediction and cost calculation, and the collaboration of building design and construction is improved.

The invention provides an automobile retired power battery disassembly sequence optimization method and a related device, and relates to the technical field of data processing. According to the method, disassembling risk priori knowledge provided by a battery manufacturer is introduced, a multi-target disassembling sequence planning mathematical model integrated with risk perception is established, and a disassembling sequence planning algorithm based on a graph attention network and a constraint perception pointer network is adopted, so that end-to-end real-time planning of disassembling sequences of different types of battery packs is realized. According to the method, the prior disassembling knowledge of an official manual can be effectively utilized, the high efficiency and safety of the disassembling process are ensured, the method can adapt to a complicated battery pack structure and a dynamically changing disassembling scene, and a brand new solution is provided for disassembling the retired power battery.

The invention belongs to the technical field of coal bed gas mining, and particularly discloses a multi-coal-bed mining optimization control method based on crossheading position stability, and the method comprises the steps: comprehensively obtaining parameters such as coal bed spacing, thickness, inclination angle, roof and floor lithology and fault distribution, and generating an accurate three-dimensional geologic model through three-dimensional modeling software; and the condition of incomplete geological analysis of a traditional method is changed. And on the aspect of crossheading arrangement, empirical operation is replaced with finite element analysis, the anchor rod distance and the support density are accurately determined, and safety and economical efficiency are improved. The mining sequence planning is changed from dependence on a fixed rule to establishment of an identification model combined with a genetic algorithm, and dynamic optimization is realized. The mining height, the mining width and the advancing speed are flexibly regulated and controlled according to the mapping relation table in the mining process, and real-time dynamic adjustment is achieved. Meanwhile, the early warning mechanism calculates scores based on crossheading stress data, is more accurate and sensitive, and has higher pertinence and effectiveness.

According to the infrared fast patrol method based on task sequence control provided by the invention, the robot is guided to pre-adjust the pan-tilt angle and the infrared focal length during advancing through task sequence planning, and the target is intelligently positioned by synchronously utilizing the equipment template library, so that continuous temperature measurement during movement is realized; performing multi-view infrared image comparative analysis on the temperature exceeding equipment through a multi-angle abnormity rechecking strategy; abnormal equipment outside a preset point location is positioned in real time in combination with a laser point cloud map and space coordinate conversion, the parking time of the robot is eliminated, the temperature measurement efficiency is improved, environmental interference is effectively eliminated, the misjudgment rate is reduced, and a high-timeliness and high-reliability global temperature monitoring defense line is constructed for safe operation of industrial equipment.

The invention belongs to the technical field of engineering project material intelligent distribution management, and discloses an intelligent building material distribution management system, which comprises a monitoring area division module, a construction progress analysis module, a material demand identification module, a distribution route planning module, a distribution sequence planning module, a distribution process monitoring module and a distribution abnormity identification module. Whether material distribution needs to be carried out or not is judged based on the construction progress of each construction unit, smooth construction can be guaranteed through the analysis mode, material supply and construction requirements can be accurately matched, resource allocation is greatly optimized, and inventory overstock is reduced. According to the invention, during material distribution, the abnormal material weight condition and the abnormal equipment operation condition in the material distribution process corresponding to each target construction unit are analyzed, whether the material distribution process corresponding to each target construction unit is abnormal is judged, the weight abnormity can be accurately identified, the material allocation can be optimized, the supply and demand balance is ensured, and the material distribution efficiency is improved. Stock overstock and waste are reduced, and cost is reduced.

The invention discloses a portal frame welding robot path planning method and system based on an improved RRT algorithm, and relates to the technical field of robot path planning. The method comprises the steps that welding operation range data of a portal frame double-mechanical-arm welding robot and relative position data of the welding robot and a to-be-welded plate component are received; welding seam information data of the welding plate component is received. A welding plate component is divided into a plurality of operation areas by considering the operation range of the robot and the welding seam distribution of the component; secondly, a constraint degree concept is introduced by considering welding deformation, and welding sequence planning is conducted on multiple pairs of welding seams in each area; and finally, based on results of operation area division and welding sequence planning, an improved RRT algorithm is adopted to plan a welding robot operation end space collision-free trajectory, the improved RRT algorithm fuses improved measures of RRT * and RRT-connect algorithms, an adaptive sampling space and a sampling point preferential mechanism are added, the path length is effectively shortened, and the path planning time is effectively shortened.

The invention discloses a hinged object robot grabbing method based on a visual language action model. A hinged object is put in a meta-universe environment for rendering, a geometric center point of the hinged object is used as a core reference point, six instance representation methods are adopted to mark the hinged object, and a sample database is established; generating six training tasks based on six instance representation methods; constructing a visual language action model based on LLaMA2 and SPHINX-X, and performing supervised training on the visual language action model according to a training task and a sample database to obtain an optimal visual language action model; constructing a joint optimizer, and selecting an optimal result from output results of the visual language action model by decomposing a hinged object manipulation sequence planning task; and S3, using the optimal visual language action model obtained in the step S3 and a joint optimizer to determine the hinged object robot grabbing method.

The invention provides an agaricus bisporus picking sequence planning method based on YOLOv8-USD instance segmentation and 3D point cloud, and the method comprises the steps: processing color image information through employing a YOLOv8n-USD instance segmentation algorithm, and generating a segmentation mask corresponding to label information; performing registration on the generated segmentation mask and the corresponding depth image to generate a 3D point cloud; morphological processing is conducted on the color images, the circle center and the radius of each mushroom are calculated, whether picking is needed or not is judged according to the radius, and picking and sorting of the agaricus bisporus are achieved; mapping the circle center and radius information of the mushrooms into the 3D point cloud through the depth image, performing rapid neighbor search by using a KD tree, and segmenting the mushrooms in each mushroom cluster; a global picking sequence planning strategy and a local picking sequence planning strategy are provided, the global picking sequence strategy is used for carrying out classification and priority ranking on different types of agaricus bisporus clusters, and the local picking sequence strategy is used for planning the picking sequence of each mushroom in the mushroom clusters. The picking sequence can be adjusted according to the overlapping degree of agaricus bisporus.

To provide a production sequence planning system that merges products in correct order even if a planned product merging sequence changes during an upstream process.SOLUTION: A production sequence planning system for planning an order to merge inspected products, which have been manufactured with a plurality of specifications in a production line having a plurality of manufacturing processes and sampled at an inspection process, back into a production line, is configured to: compare a target serial number nx of a product that has reached a point before an inspection product merges with a confirmed serial number na for which a production instruction to merge has been fixed; and determine whether the product with the target serial number is within a planned production sequence, based on the serial number of the product following the target serial number. If the product with the target serial number is within the planned production sequence, the system compares the target serial number with a serial number n of the inspection product to determine whether the inspected product can be merged, and updates the serial number of the merged inspection product to the fixed serial number. If the product with the target serial number is outside the planned production sequence, the system does not merge the inspection product, but merges the product with the target serial number and does not update the confirmed serial number.SELECTED DRAWING: Figure 2

Random key optimization is used to generate sequencing plans. An optimization problem is obtained to generate a sequencing plan. The optimization problem may be described according to nodes that represent decision variables of the optimization problem. A random optimization key technique may be applied to determine a vector of respective values for the nodes. The vector of respective values of the nodes may be decoded according to a sequence planning constraint to generate the sequencing plan and determine a fitness score for the sequencing plan.

The invention discloses a man-machine cooperative assembly task allocation and sequence planning method based on human factor engineering, relates to the technical field of intelligent manufacturing, and can fully consider human factors in man-machine cooperative assembly to realize efficient task allocation and sequence planning. The method comprises the following steps: acquiring a man-machine cooperation assembly task, analyzing the assembly task to obtain a decomposed sub-task set, and searching an optimal executor for assembly sub-tasks which can be executed by both people and a robot in the sub-task set; according to the method, assembling sub-task attribute division considering ergonomics is carried out, a man-machine cooperation assembling task allocation and sequence planning model is constructed, and an optimal task allocation and sequence planning scheme of a sub-task set is searched, so that the assembling efficiency is optimized, the man-machine cooperation execution difficulty is reduced, and the physiological and cognitive fatigue conditions of personnel are improved.

The invention discloses an assembly sequence planning method based on a multi-strategy improved flower pollination algorithm, and relates to the research field of assembly sequence planning. According to the method, on the basis of assembly body information, the assembly direction transformation cost, the assembly tool transformation cost and the assembly operation difficulty cost are set as assembly cost evaluation indexes of the assembly sequence, and a sequence evaluation system is constructed through quantitative evaluation of the constructed assembly sequence cost. The improved flower pollination algorithm based on multiple strategies is provided, the convergence efficiency of assembly sequence planning optimization can be improved, the method has more advantages than a single algorithm, the problem that sequence optimization falls into a local optimal solution can be solved, and a new thought and an efficient method are provided for assembly planning research. The method aims at solving the problems that in industrial product assembly sequence planning, a flower pollination algorithm is weak in solution capacity in a discrete spatial domain, prone to falling into local optimum, low in solution efficiency and the like, the optimal assembly sequence is rapidly solved, then the production time and cost of industrial products are reduced, and the assembly quality is improved.

The invention belongs to the technical field of robot grabbing, and discloses a complex scene grabbing method and system based on multi-modal fusion and reinforcement learning, and the method comprises the steps: obtaining a language instruction of a user and grabbing a scene RGB image; obtaining a text feature, an image feature, a position feature and a capture feature based on the language instruction and the captured scene RGB image; based on a cross attention mechanism, performing feature fusion operation on the text features, the image features, the position features and the capture features to obtain cross attention features; and taking the cross attention features as a state space, taking the grabbing poses as an action space, modeling a grabbing sequence planning problem as a Markov decision process, and solving by adopting a reinforcement learning method to obtain a final complex scene grabbing model. According to the invention, through the prior fusion of the multi-modal joint modeling and the pre-training model, not only is the adaptive capacity of the robot in a complex environment improved, but also the generalization of the method and the execution effect in the real world are remarkably improved.

A robot for object manipulation may include sensors, a robot appendage, actuators configured to drive joints of the robot appendage, a planner, and a controller. Object path planning may include determining poses. Object trajectory optimization may include assigning a set of timestamps to the poses, optimizing a cost function which may be a cost function for finger sliding based on a penalty for a sliding distance, a change in desired normal direction, and a wrench error associated with sliding a robot finger, and generating an object trajectory based on the optimized cost function. Grasp sequence planning may be model-based or deep reinforcement learning (DRL) policy based. The controller may execute the object trajectory and the grasp sequence via the robot appendage and actuators.

The invention relates to the technical field of simulation modeling, in particular to a BIM-based building embedded pipeline simulation system, which comprises a pipeline path optimization module, a space conflict detection module, a construction sequence planning module, a dynamic adjustment generation module and a resource utilization rate evaluation module. According to the method, by automatically extracting the spatial distribution information of the pipelines and analyzing the geometrical characteristics and the connection relation of the pipelines, accurate marking of potential conflict positions can be achieved, the comprehensiveness and the accuracy of spatial conflict recognition are effectively improved, and further based on extraction of the construction sequence relation and logic dependency analysis, the construction efficiency is improved. The method can achieve the intelligent judgment of the construction conflict state, achieves the dynamic adjustment of a layout path and a time range, assists in forming a targeted wiring strategy in a conflict region, optimizes the resource space matching degree, automatically recognizes a low-efficiency time period, carries out the real-time identification, improves the response capability of a construction process to the resource utilization efficiency, and improves the construction efficiency. And the precision of path adjustment and the coordination of construction organizations are improved.

The invention relates to the technical field of numerical control program adjustment, in particular to a vertical numerical control machine tool program adjustment system based on digital twinning. The system comprises an association weight distribution module and a detection sequence division module. According to the invention, the association weight distribution module is combined with the types of the to-be-detected simulation codes and historical adjustment control information to distribute the association weights of the to-be-detected simulation codes, and the detection sequence division module is matched with the association weights of the to-be-detected simulation codes to formulate corresponding detection sequences. According to the method, probability prediction is carried out on multiple associated control codes causing abnormal features, the subsequent maintenance sequence is divided through the initiation probability, regular associated control code maintenance sequence planning is achieved, associated control code detection work is carried out in a targeted mode, the influence of irrelevant control codes on the detection process is avoided, and the subsequent maintenance efficiency is improved.

The invention relates to an aviation typical structure assembly sequence planning method and system and a storage medium, and the method comprises the steps: carrying out the feature recognition of a product three-dimensional mathematical model of an aviation typical structure, and obtaining a recognition result of the assembly features of the aviation typical structure; analyzing the recognition result into structured data, and constructing an assembly structure diagram model based on the structured data; and performing assembly sequence planning on the aviation typical structure by using the assembly structure diagram model to generate a final assembly sequence. The problems that the assembly sequence planning process depends on artificial experience and judgment, the design time is long, and the efficiency is low can be solved, and the efficiency and quality of assembly sequence planning are improved.

The invention discloses a clustered fruit picking path planning method and device based on obstacle perception, belongs to the field of agricultural automatic robot picking path planning, is used for path planning of small dense fruit picking, and is technically characterized by comprising the steps of S1, acquiring an RGB image and a depth image of a fruit picking area; s2, fruit types are recognized according to the RGB images, fruit position coordinates are obtained according to the depth images, a data set with fruit data points is obtained, and the fruit types include normal fruits and split fruits; s3, setting a dynamic neighborhood radius according to the fruit data points; s4, determining core data points according to the number of the fruit data points in the dynamic neighborhood radius; s5, classifying all reachable data points in the dynamic neighborhood radius of the core data points into the same fruit cluster; s6, a picking sequence planning sequence of all the fruit clusters is calculated, the picking path can avoid split fruits, and small dense fruits such as cherries can be accurately picked one by one through a mechanical arm according to the planning path.

The invention requests to protect a reinforcement learning mixing method applied to assembly sequence planning, the assembly sequence planning can be essentially understood as a sorting of product parts, the excellent assembly sequence can shorten the production cycle of products, and the production cost is reduced. In the invention, a reinforcement learning algorithm, i.e., a Greedy-QS algorithm, which combines a Q-learning algorithm and a Sarsa algorithm is provided to solve the problem of assembly sequence planning. In the work of the method, firstly, the to-be-assembled product is reasonably abstracted into a mathematical model expressed by several Boolean matrixes, the complexity of the assembly model is reduced, the operability of the algorithm for the assembly sequence planning problem is improved, and then the optimal solution is solved by using the Greedy-QS algorithm. Experiments prove that compared with a Q-learning algorithm, a Sarsa algorithm and a Q-SARSA algorithm, the Greedy-QS algorithm has a faster convergence speed in the assembly sequence planning problem, the obtained reward value of the optimal assembly sequence is higher, and the advantages of the Q-learning algorithm and the Sarsa algorithm are both achieved.

Aiming at the construction of an automatic warehouse logistics system of a digital workshop production line, the invention provides a single-load automatic guided vehicle workshop path planning method based on directed acyclic graph modeling, and the method comprises the functions of task selection, task execution sequence planning and the like. The method comprises a fusion algorithm framework based on a binary discrete particle swarm optimization algorithm and a genetic algorithm component, and can solve and fully consider the diversity of task selection strategies in a short time according to information such as known task arrival time and transportation starting point, so that normal production is ensured; and the task execution sequence with the shortest total driving distance is the optimal (or close to the optimal) task execution sequence.

The invention relates to the technical field of numerical control machining, and discloses a workpiece machining method, electronic equipment, a storage medium and a program product.The method comprises the steps that cutting information of a to-be-machined workpiece is obtained, and the cutting information is obtained by conducting cutting simulation on the to-be-machined workpiece; the cutting information comprises multiple sections of cutting paths and processing sequence constraints among the cutting paths; based on the machining sequence constraint and the length of a non-cutting path between the cutting paths, machining sequence planning is conducted on the cutting paths, and a target machining sequence is obtained; and based on the cutting paths, the target machining sequence and non-cutting paths between the adjacent cutting paths in the target machining sequence, the to-be-machined workpiece is machined, and a target workpiece is obtained. The problem that the workpiece machining efficiency of the numerical control machine tool is low can be solved.

The application discloses a picking sequence planning method of a mechanical arm for picking spherical fruits cultivated by a cultivation frame, which comprises the following steps: identifying a tomato area by using a deep learning framework, identifying a fruit to be picked, modeling a traveling salesman problem and solving the problem by using a genetic algorithm to plan an optimal picking sequence for all string tomatoes to be picked, and guiding the mechanical arm to continuously pick multiple target fruits. In addition to the shortest total path, the minimum factor of each rotating joint of the mechanical arm is added in the path evaluation index for comprehensive evaluation. The planned picking sequence can not only make the total path tend to be the shortest, but also prevent the rotating angle of each joint from being too large, thereby preventing the mechanical arm from being damaged. The application can improve the picking efficiency and the picking success rate, and avoid the damage of the mechanical arm caused by the large rotating angle of the joint, and has practical significance for promoting the yield and income of the string tomato industry and the intelligentization of automatic picking equipment.

The present invention discloses a financial asset evaluation method and system based on big data, which specifically relates to the financial field, including a data collection timing planning step, a financial data collection step, a financial data analysis step, a financial asset evaluation step, and a risk judgment step. The present invention realizes a comprehensive and accurate evaluation of financial asset risks through systematic data collection, multi-dimensional data analysis, and comprehensive evaluation. The beneficial effect is that the timeliness and accuracy of the evaluation are improved, and a scientific decision-making basis is provided for enterprises and investors, which helps to reduce investment risks and increase asset value. At the same time, the regular evaluation function of the system can timely discover risk changes and support the continuous improvement and risk management of enterprises.

The invention discloses an unmanned aerial vehicle routing inspection sequence planning method and system for disaster situation data acquisition and return. The method comprises the steps of establishing an unmanned aerial vehicle routing inspection sequence planning task scene for unmanned aerial vehicle disaster situation data acquisition and return; in the task scene, based on a multi-path traveling salesman problem, establishing a post-disaster data acquisition and return task system model; and solving the post-disaster data acquisition and return task system model by adopting a multi-strategy improved grey wolf optimization algorithm to obtain an unmanned aerial vehicle inspection sequence scheme, and the method and the system can realize unmanned aerial vehicle inspection sequence planning.

The invention discloses a complex prototype reconstruction model and registration evaluation method based on actual measurement data driving. The method comprises the following steps: step 1, constructing a measurement-registration unified coordinate system; 2, digital measurement of the actual profile and characteristics of the product is completed; 3, completing the solution of the concerned feature point location of the product; 4, completing a complex prototype reconstruction model based on lightweight characteristics; 5, completing alignment relation calculation based on local constraint matching; step 6, calculating the overall assembly offset degree of different reconstruction pattern machines; 7, completing registration evaluation according to the offset degree of the reconstruction pattern machine; and step 8, assembling sequence planning based on registration evaluation. Quantitative supporting guidance can be provided for assembly work, the reliability and efficiency of the assembly process can be effectively improved, in addition, a physical prototype of the reconstruction model can provide data input for digital integration and automatic assembly, and work such as traditional trial docking and manual mass trial assembly can be effectively solved.

The invention discloses an assembly sequence planning method based on improved Monte Carlo tree search, and belongs to the technical field of assembly sequence planning, the method comprises the following steps: S1, constructing an assembly basic data matrix and a tool table; s2, establishing assembly sequence mixing performance indexes; s3, iterating the improved Monte Carlo tree search algorithm; and S4, solving and outputting an optimal assembly sequence. According to the assembly sequence planning method based on improved Monte Carlo tree search, the simulation time is remarkably shortened, the optimization speed is increased, the limitation that a traditional algorithm is prone to falling into local optimum is broken through, and the understanding quality is effectively improved.

The embodiment of the application provides a dual-arm action sequence planning method for on-orbit multi-module replacement tasks, comprising: mathematically modeling the multi-module replacement task and the dual-arm system; task decomposition is performed on the multi-module replacement task, a dynamic programming algorithm and a depth-first search algorithm are used to search for a task decomposition scheme for dividing the large-scale module replacement task into multiple batches of module replacement tasks according to single-module replacement task constraints and task points in series; a dual-arm task allocation and scheduling model for multi-module replacement is constructed by considering multiple optimization objectives and constraint conditions, and an intelligent optimization algorithm is used to solve the dual-arm action sequence; the obtained solution set is evaluated by using a non-dominated solution distance method, the dual-arm action sequence scheme is sorted, and an ideal optimal planning solution is obtained. According to the technical scheme provided by the embodiment of the application, the efficiency of the dual-arm system in executing the on-orbit multi-module replacement task can be improved under the premise of avoiding dual-arm conflicts, and the continuous and healthy operation of the dual-arm system can be ensured.

The application discloses a self-task planning method for quick maneuvering rendezvous imaging of a spatial space target, and comprises the following steps: step one, multi-pulse control sequence planning: according to task requirements and considering determination of an orbit requirement, a multi-pulse control sequence is given, and the first control is implemented autonomously on the satellite; step two, closed-loop control sequence planning: after the i-th control is finished, the remaining N-i control sequences are given in combination with the orbit of the satellite after control and the orbit of the target, and the i+1-th control is implemented; wherein, i is greater than or equal to 1 and less than or equal to N-2, and the total control times are N; step three, single-pulse transfer planning: after N-1 control is finished, the last control velocity increment is calculated by using a Lambert transfer method in combination with the orbit of the satellite after control and the orbit of the target, and the N-th control is implemented; and step four, imaging task planning. The closed-loop control planning method is given by considering the influence of control errors and orbit errors, the method can ensure that the planning result of each time is basically consistent with the first planning, and the final rendezvous precision requirement is met.

The application belongs to the technical field of mobile visual inspection planning, and specifically discloses a mobile visual inspection station-point joint clustering and sequence planning method. The method is a genetic algorithm based on an alternating evolution strategy, and comprises steps of data encoding / decoding, evolution strategy updating, individual selection, individual crossover, individual mutation, population updating and the like. The length of a chromosome is equal to the number of points participating in sequencing. The integer part of a gene represents a point sequence number, and the decimal part represents a station sequence number to which the point belongs. Point sequences belonging to the same station follow the order of appearance in the chromosome; station sequences follow the order of the first appearance position. The application can integrally realize station-point clustering and sequence planning, and improve visual inspection efficiency; the proposed evolution strategy also significantly reduces the running time of the planning program. The application is suitable for large and complex component mobile visual inspection and other similar scenarios.