444 results about "Time series dataset" patented technology

The invention relates to an electric power material intelligent detection method based on multi-modal data fusion, and aims to improve the accuracy and automation level of material state recognition. According to the method, in the electric power material operation or circulation process, multi-modal data such as images, infrared thermal imaging, radio frequency identification, vibration response and environmental parameters are acquired through a unified time index, and a structured time sequence data set is constructed. And after normalization and exception elimination processing, multi-dimensional feature vectors including structural strength, temperature distribution, label continuity and dynamic stability are extracted, and weighted statistics and correlation calculation are executed to generate a comprehensive state index. And further through comparison with a historical reference, identifying an abnormal state according to a deviation threshold value, outputting corresponding labels and feature information, and obtaining material state evaluation and disposal suggestions based on rule reasoning. According to the method, accurate monitoring and abnormal early warning of the electric power materials under the driving of the multi-source data are realized, and the method has good practicability and expansibility.

The invention discloses a hydropower station equipment fault analysis method based on state data mining, and relates to the technical field of hydropower station equipment intelligent fault diagnosis, and the method comprises the steps: collecting key operation parameters through deploying multiple types of sensors, and constructing a unified state time series data set; carrying out supervised training by adopting an LSTM network, extracting a dynamic feature vector, and constructing an AI state analysis model; introducing a micro-fluctuation abnormal coefficient WBYX, and evaluating the operation stability of the equipment; a coupling disturbance collaboration coefficient OHRD is calculated, and a fault conduction relation among multiple devices is identified; and calculating a trend evolution coefficient QSYH based on the state vector included angle offset, and analyzing whether the equipment operation trend is abnormal or not. By setting a multi-level threshold value, generation of a hierarchical early warning mechanism and a response strategy is realized, and the operation safety and the fault prediction capability of hydropower station equipment are effectively improved. The method is suitable for hydropower station key equipment state monitoring and intelligent operation and maintenance management in a complex environment.

The provided are a price elasticity analysis and prediction method and model based on deep learning. The model consists of a CNN layer and an RNN layer. The method comprises the following steps: S1, collecting historical data and merging the historical data into a multi-dimensional time series dataset; S2, extracting sentiment data and trend data from market news and social media; S3, inputting the data obtained into CNN for data preprocessing and feature extraction; S4, inputting the feature extracted by CNN into RNN for time series analysis; S5, training and optimizing model: using Adam algorithm to adjust the learning rate adaptively, and combining the momentum method and RMSProp algorithm to improve the generalization ability and prediction accuracy of the model. The provided combines the advantages of CNN and RNN, which can understand and predict the complex relationship between price and market behavior more comprehensively and accurately.

The invention discloses an operation collaborative optimization method for an optical storage direct current flexible interaction system. Comprising the steps of collecting operation data such as photovoltaic output, an energy storage state, household load power and direct current bus transmission power, fusing power market price information, and constructing a multi-dimensional time series data set; then, predicting an adjustable load capacity interval of the system based on a coupled physical constraint neural network model embedded with DC bus power balance, voltage constraint and equipment operation limitation; further constructing a state-action space, solving a Pareto frontier by adopting a multi-objective optimization algorithm, and generating a light storage and home load collaborative scheduling strategy set; then combining the real-time operation state and the prediction deviation information, applying a voltage-power droop control mechanism to carry out strategy decoupling, and generating an energy storage power correction amount and a flexible load priority control instruction; and finally, a control instruction is issued to the optical storage direct flexible system, so that collaborative optimization operation with consideration of economical efficiency, safety and comfort of the system is realized.

The invention relates to the technical field of automobile part manufacturing, and discloses an automobile injection molding part production process control system and method, and the system comprises the following modules: a data collection module which is used for collecting technological parameters, molds, raw materials and equipment operation original data, attaching timestamps, and storing the data in a database; the process parameter prediction module is used for reading original data to construct a time sequence data set, inputting the time sequence data set into a TFT model to obtain a pre-training model, and predicting a short-term process parameter fluctuation range in combination with current production working condition parameters; and the quality risk index acquisition module is used for inputting the process parameter data and the mold data into a quality risk index calculation formula to obtain a quality risk index. Through the system, data-driven comprehensive production optimization is realized, the process control accuracy and adaptability are improved, the quality control scientificity and reliability are enhanced, the intelligent level of the production process is improved, the production efficiency is effectively improved, the defective rate is reduced, and the product quality is stabilized. The problem that process control lacks system intelligence is solved.

The invention discloses an industrial internet real-time cooperative control method based on edge computing, and the method comprises the steps: obtaining multi-source heterogeneous data of industrial equipment, and generating a standardized data set; performing time sequence alignment processing on the standardized data set to generate a time sequence data set; segmenting the data to obtain a standardized segmented data set; removing abnormal values and redundant information according to the standardized segmented data set to obtain a cleaned data set; performing format conversion on the cleaned data set according to an equipment state and a control strategy requirement to generate intermediate data; performing feature extraction on the intermediate data to generate an equipment state feature vector; according to real-time monitoring information of a network load and a transmission path, a computing resource allocation strategy of an edge node is adjusted, data of high-priority equipment is processed preferentially, and a resource allocation result is generated; and deploying a cooperative control algorithm based on an ARIMA time sequence model at the edge node, and generating a real-time control instruction in combination with the equipment state feature vector.

The invention discloses an industrial time sequence prediction method based on adaptive continuous learning. The method comprises the following steps: firstly, dividing a non-stationary industrial time series data set to obtain a plurality of domains with the maximum distribution difference; different time domains are then modeled in sequence, and an improved empirical playback (DER + +) method is used to avoid catastrophic forgetting of previously accumulated knowledge. Meanwhile, a soft sample buffer area is introduced to promote memory and learning of key modes in the current field. And finally, the time-sensitive activation function TimeRelu enables the time convolutional network (TCN) to have a time evolution property, and the generalization ability of the prediction model is enhanced. According to the method, the continuous learning normal form is introduced into the time sequence prediction task, the limitations of huge resource overhead of traditional cumulative training, disastrous forgetting of an incremental learning mode and the like are overcome, and the method has theoretical and practical significance on industrial time sequence prediction.

The invention discloses a method for performing wind power generation prediction through a fine-tuning pre-training large model, and the method comprises the steps: obtaining a historical multi-dimensional time series data set, and carrying out the spatial-temporal feature fusion through a sliding window, and generating a wind speed trend sequence; based on the wind speed gradients of the adjacent time windows, generating step length adjustment parameters by using a normalization function; performing dynamic parameter adjustment on the pre-trained time sequence prediction model based on the step length adjustment parameters, and performing domain adaptation on top network parameters of the time sequence prediction model through an adaptive optimization algorithm in combination with a hierarchical transfer learning strategy to obtain an optimized time sequence prediction model; and processing the real-time multi-dimensional time sequence data set by using the optimized model to generate a wind power generation prediction result. By dynamically adjusting model parameters and a hierarchical transfer learning strategy, the precision of wind power generation prediction and the model adaptation capability are effectively improved, and the method is suitable for time sequence prediction scenes in the field of wind power generation.

Aiming at the problems of insufficient data diversity, data sparsity and model generalization ability in an industrial time sequence prediction model, the invention provides a method for establishing a time sequence prediction model oriented to industrial multi-modal data, which comprises the following steps: acquiring multi-source heterogeneous industrial time sequence data, and cleaning the acquired data; performing data enhancement on the cleaned data to generate an enhanced time sequence data set; fusing the multi-source heterogeneous time series data in the obtained enhanced time series data set by using a heterogeneous data fusion sensing method of multi-dimensional space-time mapping; using the fused data to construct a prediction model oriented to the multi-modal industrial time series data based on an AI large model, and performing model training; and according to the trained prediction model oriented to the multi-modal industrial time series data, predicting the change trend of the key indexes in the industrial process in a period of time in the future.

The invention discloses a regional power grid wind power generation power prediction optimization method and system, and particularly relates to the technical field of power grid wind power generation. Multi-source environment data is collected, wind speed change characteristics are extracted, a time series data set is constructed, a hybrid prediction model is constructed in combination with a long-short term memory network and a gradient boosting decision tree, a time series trend and a nonlinear wind speed-power mapping relation are captured respectively, and prediction weights of the time series trend and the nonlinear wind speed-power mapping relation are adaptively adjusted through an attention mechanism. According to the method, the model hyper-parameters are adaptively adjusted by further combining Bayesian optimization, short-term prediction errors are corrected by using Kalman filtering, the real-time adaptability and stability of prediction are enhanced, the problems of prediction misalignment and the like caused by high nonlinearity and data scarcity of a wind speed mode in a complex terrain environment are effectively solved, and the prediction accuracy is improved. The wind power prediction precision is improved, a more stable and reliable scheduling reference is provided for a regional power grid, and the standby capacity demand and the operation cost are reduced.

The invention relates to a line loss data anomaly monitoring method and system based on time sequence anomaly detection. The system comprises the following steps: S1, collecting operation data of a power grid; s2, preprocessing the acquired operation data of the power grid; s3, according to the time sequence data set, through a Patch Transform, segmenting a time sequence into local windows and calculating attention, and through GraphSAGE, aggregating line topology correlation features to obtain a training feature set; s4, constructing a hierarchical anomaly detection model and training based on the training feature set; and S5, performing anomaly detection according to the trained layered anomaly detection model, and generating a causal thermodynamic diagram based on an anomaly detection result. According to the invention, through multi-source data fusion, dynamic distribution modeling and causal analysis, accurate identification and diagnosis of abnormal reasons in a complex line loss scene are realized.

The invention discloses a river water level dynamic monitoring and flood overflow risk prediction method based on deep learning, and the method comprises the following steps: S1, collecting multi-source hydrological data, and constructing a time series data set; s2, performing interpolation, denoising and normalization processing on the data to generate a unified time sequence format; s3, constructing a water level prediction model comprising a bidirectional long short-term memory network and an attention mechanism; s4, inputting the preprocessed data into the water level prediction model, and outputting a multi-time-step predicted water level sequence; s5, a dynamic threshold value is set according to the historical extreme value and the real-time hydrological condition, and the flood overflow risk is judged; s6, generating and caching a risk tag, and recording an error; s7, outputting a prediction result and risk information through a communication interface; and S8, periodically updating the input data in a rolling manner, and repeatedly executing the prediction and monitoring process. According to the invention, depth prediction and a dynamic threshold control mechanism are fused, and water level monitoring and flood overflow risk intelligent early warning are realized.

The invention discloses a single-person abnormal behavior identification method and system based on multi-modal skeleton feature fusion, and the method comprises the steps: S1, collecting continuous RGB images and infrared thermal imaging images in a monitoring video, carrying out the human body detection and key point estimation of visible light and infrared images through employing a multi-modal fusion model of YOLOv12 in combination with Transform, and constructing a single-person posture time series data set; s2, key point speed vectors are calculated for the continuous skeleton frame sequence of each target person, skeleton key point information and speed information are fused, and an action feature sequence is formed; s3, inputting the motion feature sequence into an MPED-RNN model, decomposing skeleton motion into a global displacement component and a local attitude deformation component, and performing joint coding, decoding and prediction through a dual-channel GRU network; and S4, calculating a prediction error and a reconstruction error according to a reconstruction result and a future skeleton key point prediction result, evaluating whether the current behavior deviates from a normal trajectory, and judging whether the current behavior is in an abnormal state. According to the invention, real-time identification of abnormal behaviors of a single person in a complex scene is realized.

The invention discloses an intelligent networked battery full life cycle optimization system and method, and relates to the technical field of energy management, the system comprises a sensor array module, temperature data and voltage data in the battery operation process are continuously collected through a sensor array, an initial multi-dimensional time sequence data set is formed, and the initial multi-dimensional time sequence data set is stored in the sensor array module; the alarm and adaptive adjustment module is used for obtaining an alarm log record aiming at the initial time sequence data set, triggering the adaptive adjustment module to dynamically optimize battery operation parameters according to the alarm log record, generating a temporary control instruction, reducing the influence range of temperature or voltage abnormity and obtaining adjusted operation state data; according to the intelligent networked battery full life cycle optimization system and method, risk monitoring of the battery full life cycle is realized, and the battery operation safety and reliability are effectively improved.

The invention provides an artificial intelligence network model-based early warning and monitoring method for the occurrence amount of agricultural pests, and particularly relates to a time sequence modeling method by combining a variable structure bus module VSB with a bidirectional long short-term memory network BiLSTM, which is used for predicting the occurrence dynamic state of important pests in a field and an orchard with high precision. Comprising the following steps: selecting three monitoring sites in a main crop producing area; and establishing a time sequence data set of the corresponding relationship between the average daily temperature, the rainfall and the effective accumulated temperature and the number of pests in ten days. According to the method, a hybrid neural network prediction model is constructed, the model comprises five function modules, and the model can accurately early warn annual dynamic changes of main crop main pest populations and judge peak values, and helps farmers establish efficient pest prevention and control measures.

The invention relates to the technical field of power distribution, in particular to a dynamic power distribution method and system for an automobile charging pile, and the method comprises the steps: extracting the historical load data of the charging pile through a sensor, converting the data into a time series data set in a unified range, and carrying out the window sliding fitting through employing a convolutional neural network based on the time series data set; the future load demand of each charging pile is predicted, meanwhile, a graph structure network of a power transmission relation is constructed, node power distribution information is fused, a charging pile cooperation relation is established, the relation between the power demand of a single charging pile and the power grid bearing capacity is evaluated by adopting a genetic algorithm, power output is adjusted, the output ratio is calculated, and a reasonable power distribution scheme is formed; and finally, monitoring a power grid load and a charging pile operation state in real time, constructing a graph structure of a charging pile cooperation network based on a geographic position, changing independent management of the isolated charging piles into networked cooperation management, and enhancing reasonable resource allocation among the charging piles.

The invention discloses an offshore rocket recovery platform attitude stability control method based on particle swarm optimization, and the method comprises the following steps: S1, collecting and preprocessing multi-source attitude data, and generating a time series data set; s2, constructing a fuzzy PID controller, and setting nine three-axis control parameters; s3, performing global optimization by adopting an improved particle swarm algorithm, and outputting an initial parameter solution; s4, introducing a zebra optimization algorithm to carry out local refined optimization; s5, constructing a collaborative optimization architecture, and fusing and outputting optimal control parameters; s6, the optimal parameters are input into a controller, and a servo system is driven to adjust the three-axis attitude; s7, monitoring disturbance amplitude, dynamically triggering a zebra strategy and feeding back the zebra strategy to the particle swarm; and S8, evaluating the control performance, and feeding back iterative optimization if the control performance does not reach the standard. According to the method, the improved particle swarm optimization algorithm and the zebra optimization algorithm are fused, so that self-adaptive optimization and accurate attitude stable control of attitude control parameters of the offshore rocket recovery platform are realized.

The invention relates to the technical field of artificial intelligence and thermal power production fault detection, in particular to a thermal power production fault detection data measuring point screening method and system based on a clustering algorithm, and the method comprises the steps: obtaining historical fault data of thermal power plant production equipment, and selecting related measuring points to form a multi-dimensional time series data set; and performing embedding processing on the time sequence data by using the time sequence large model to generate a feature vector with a set dimension. And then, carrying out clustering analysis on the feature vectors by adopting a clustering model to obtain a clustering result. And finally, screening out the measuring points related to the fault points of the production equipment of the thermal power plant according to a clustering result, obtaining a corresponding screening result, and providing support for equipment fault prediction and diagnosis.

The invention provides an intelligent recommendation method, system and device for MySQL dynamic parameters and a medium, and belongs to the technical field of databases. The method comprises the following steps: collecting structured performance indexes in real time, extracting unstructured text knowledge, and storing the unstructured text knowledge into a data lake; performing cleaning, fusion and feature extraction processing on the acquired data, constructing a time sequence data set, and generating a multi-modal feature vector; constructing a parameter optimization model fusing the text encoder, the parameter dependency graph encoder and the reinforcement learning decision maker, and training the parameter optimization model; according to the real-time system state vector and the user optimization target, using the parameter optimization model to output parameter adjustment suggestions, generating a parameter adjustment suggestion list, and predicting potential risks; according to the parameter adjustment suggestion, a progressive adjustment strategy is adopted to execute parameter adjustment operation, and the adjusted performance index is monitored in real time; and feeding back a parameter adjustment implementation result to a parameter optimization model training process, updating a model weight, generating a parameter adjustment case and storing the parameter adjustment case in a knowledge base.

The invention discloses a cascade system online monitoring and prediction method based on a sparse self-attention mechanism, and the method comprises the steps: S1, obtaining and preprocessing multi-working-condition data of a cascade system, and constructing a time series data set; s2, performing embedded conversion and position coding on the data, and capturing sequence position information; s3, pre-fusion of adjacent time step information is realized through one-dimensional convolution; s4, a multi-head sparse attention mechanism is introduced, and a ReLU2 activation function is adopted to replace softmax so as to reduce calculation overhead; s5, completing information fusion through one-dimensional convolution, ELU activation and maximum pooling; s6, constructing an encoder containing a multi-head sparse attention mechanism; s7, designing an autoregressive decoder, and combining self-attention with cross attention; s8, adopting a HuberLoss loss function to train the model; and S9, carrying out reverse normalization on the model output to obtain a final prediction value. According to the invention, by optimizing the Transform architecture, 60 s effective prediction of the key parameters of the cascade system is realized, the prediction error is significantly reduced, and the intelligent early warning capability and the operation stability of the system are improved.

The invention discloses an apple recognition positioning and obstacle avoidance method based on zero samples and visual guidance. An improved YOLOV8 model is used for recognizing unknown category objects in a picking scene; semantic embedding of apples and branches is constructed by combining an external knowledge base Word2Vec, and unknown category objects in a picking scene are identified by using a zero sample learning method; constructing three-dimensional point cloud data of a fruit tree where an identification result is located, carrying out iterative convergence point cloud denoising by adopting a convex set constrained by an alpha norm, and updating point cloud coordinates; performing point cloud segmentation by using a potential energy function segmentation model; obtaining three-dimensional information of the apple and the obstacle through three-dimensional reconstruction of the point cloud feature information; extracting three-dimensional space position data of the branches at different time points to form a time sequence data set, and predicting the motion trail of the branches by using LSTM (Long Short Term Memory); through branch coordinate data of the point cloud and the LSTM, predicting a motion track of the branch, and utilizing a geometric collision detection method to evaluate and predict a collision risk between a robot end effector and the branch; and planning an optimal obstacle avoidance path by using an A * algorithm.

The invention provides a water chiller predictive maintenance method and system based on digital twinning, and the method comprises the steps: obtaining the evaporation pressure, suction temperature, refrigerant flow and outlet water temperature parameters during the operation of a main module of a water chiller, and carrying out the synchronous collection through multiple sensors, thereby forming a time series data set; according to the time sequence data set, a sliding window method is adopted to extract the mean shift amount, variance volatility and cross correlation coefficient of evaporation pressure and suction temperature, and a collaborative drift mode reflecting micro leakage is obtained; according to the corrected drift rate and cross correlation coefficient, generating a feature vector of a collaborative change direction among the evaporation pressure, the suction temperature and the refrigerant flow; and by calculating the Euclidean distance between the feature vector of the cooperative change direction and the health baseline, whether the micro leakage reaches the early warning triggering degree is judged, and the strength of an early warning signal is obtained.

The invention discloses a warehouse network planning and designing method based on a solver, and relates to the technical field of supply chain management, and the method comprises the steps: collecting order data of several years in the past, arranging the order data according to a time sequence, obtaining an ordered time sequence data set, carrying out the STL decomposition of the time sequence data set, and obtaining a time sequence data set; identifying a trend component value, a season component value and a residual component value; checking and verifying the three components, and when an abnormal condition occurs, adjusting decomposition parameters and performing decomposition again; creating a hybrid prediction model based on a time sequence prediction algorithm, inputting the three components which are verified to be qualified into the hybrid prediction model, and outputting an order prediction value; acquiring real-time order data, and inputting the real-time order data into the hybrid prediction model; a multi-objective optimization model is formulated in combination with the latest prediction result and constraint conditions of warehouse capacity limitation and transportation cost; and solving the multi-objective optimization model by using a mathematical optimization technology MILP, and searching an optimal warehouse position layout, a storage strategy and a distribution route plan.

The invention relates to the technical field of psychosomatic health management, in particular to a psychological immune system evaluation system and intervention method for cancer patients. And the data acquisition module is used for acquiring and fusing the immune biochemical indexes of the patient, the continuous physiological time sequence signals generated by the wearable device, the digital psychological assessment data and the clinical treatment stage marks, and outputting a structured multi-dimensional time sequence data set through time alignment and feature extraction operation. Through multi-modal data fusion and integrated machine learning analysis, the psychosomatic health risk of the patient can be predicted based on the continuous physiological and psychological data change trend of the patient, and corresponding intervention measures can be triggered before the patient has obvious clinical symptoms by outputting the quantized risk coefficient and the multi-stage early warning signal, so that the accuracy of the patient is improved. Therefore, an intervention mode is promoted to be converted from traditional intervention after evaluation to predictive and preventive intervention.

The invention specifically discloses a long-time-sequence high-frequency ecological environment quality space-time differentiation and driving analysis method, and relates to the technical field of remote sensing and ecological environment. The method comprises the following steps: determining an evaluation area, and constructing a macroscopic ecological safety risk evaluation framework; ecological indexes of greenness, humidity, temperature and dryness are calculated, and a time sequence data set is constructed; reconstructing a time sequence data set and constructing a remote sensing ecological index model based on the reconstructed time sequence data set; verifying the precision of the model, and evaluating the reconstruction precision by taking the screened high-quality pixels as true values; analyzing the spatial and temporal change trend and significance output by the model by using slope estimation and trend test, outputting future change continuity by using a Hurst index analysis model, and measuring spatial autocorrelation output by the model by using a Moran index; remote sensing ecological index evolution factors are researched by means of an optimal parameter geographic detector. According to the invention, the precision and timeliness of ecological assessment are improved, and decision support is provided for ecological management.

The invention discloses a digital twinning-based clean room intelligent operation and maintenance system and method, and relates to the technical field of intelligent operation and maintenance, and the method comprises the steps: obtaining the state data of a clean room through arranging a sensor, obtaining the power data of clean room equipment through an external data source, and carrying out the preprocessing at an edge node, and generating a multi-source time series data set; constructing a multi-scale prediction model by integrating a long short-term memory network, an autoregressive integral moving average model and a graph neural network, and generating a multi-scale sequence data set based on the multi-source time sequence data set; performing analogue simulation on physical field coupling in the clean room through a quantum computing platform to generate a clean room digital twinborn simulation model; and loading the clean room digital twinborn simulation model to a cloud analysis platform, optimizing the running state of the clean room by using a gradient descent method, and generating an optimized operation and maintenance scheme. According to the invention, simulation is carried out on physical field coupling in the clean room through the quantum computing platform, and the authenticity and real-time performance of a simulation model are greatly improved.

The invention discloses a cancer recurrence probability deep learning prediction system based on multi-modal time sequence characteristics, and relates to the technical field of medical data processing. The method comprises the following steps: constructing a multi-modal time sequence data set by collecting clinical static data, dynamic treatment data and time sequence monitoring data of a patient; missing value filling and abnormal value elimination based on sliding Z-score are carried out on the data to form an effective data set; screening key clinical static features by using a random forest model; constructing a radiotherapy cumulative toxicity model to quantify residual toxicity, and generating dynamic characteristics by combining the dose change rate three-state characteristics; converting the features into a four-dimensional time sequence tensor through a dynamic sliding window; optimizing LSTM hyper-parameters by adopting random search, and training a high-precision prediction model to output a recurrence probability; finally, differentiated clinical intervention is triggered based on risk grading, a'prediction-decision 'closed-loop system is formed, and the initiative and accuracy of cancer recurrence diagnosis and treatment are remarkably improved.

The invention relates to the technical field of remote sensing technology application, in particular to a cold highland area runoff analysis method based on a remote sensing technology, which comprises the following steps of: constructing a time sequence data set based on remote sensing and laser radar data, and extracting gradient, soil permeability and vegetation coverage to form a landform factor set; calculating a parameter contribution ratio through a topographic index hydrological model to generate a path influence value, extracting layer features to generate a runoff path diagram, outputting water volume change data by combining a standardized rainfall index and a Muskingum model, performing conjoint analysis to remove paths which do not meet conditions, and generating an updated runoff path diagram. According to the method, a time sequence data set is constructed through remote sensing and laser radar data of the cold and cold mountainous area, a terrain index hydrological model is input to quantify contribution, a path influence value is dynamically adjusted, a runoff path line segment sequence is generated, hydrodynamic simulation is performed in combination with a rainfall index, a water volume change record is obtained, and runoff dynamic monitoring is performed. And the path judgment precision and simulation reliability of the cold-cold mountain area are improved.

The invention discloses a full-link collaborative optimization method for flexible supply chain toughness evaluation, and relates to the technical field of supply chain intelligent management, and the method comprises the steps: obtaining supply chain multi-source data, and carrying out the preprocessing of the data, and obtaining a structured time series data set; constructing a supply chain heterogeneous graph and fusing the supply chain heterogeneous graph with the domain knowledge graph to obtain a supply chain semantic graph structure; generating a toughness index set and identifying supply chain weak links in a mode of combining rule calculation and large language model reasoning; inputting the order data into the time sequence prediction model to obtain a future demand prediction value, and calculating a supply chain risk prediction result; generating a candidate scheme set, inputting the toughness index set and the candidate scheme set into a multi-objective optimization model for solving, and generating a collaborative instruction set; executing the collaborative instruction set, collecting feedback data, and updating model parameters according to the feedback data. According to the method, intelligent evaluation of the supply chain toughness and accurate early warning of the risk are realized, and the anti-risk capability and the response efficiency of the supply chain are remarkably improved through collaborative optimization.

The invention discloses an aero-engine performance degradation prediction method driven based on a limited airborne sensor and a GA-LSTM combined architecture, a medium and a computer program. The method comprises the following steps: acquiring engine operation state data by using a standard airborne sensor with limited configuration; constructing a time series data set with state parameters as input and performance parameters as output, then constructing an engine performance prediction model based on a long short-term memory (LSTM) network, and optimizing structure parameters and training hyper-parameters of the LSTM network by using a genetic algorithm (GA); and finally, performing performance prediction and degradation trend evaluation based on the optimized LSTM model. According to the invention, through a GA-LSTM combined architecture, a complex nonlinear relationship in an engine performance degradation process can be effectively modeled, and prediction precision and generalization ability are improved. The method has good engineering adaptability and deployment feasibility, and has a wide application prospect in the field of aero-engine health monitoring and fault diagnosis.