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1188 results about "Traffic management" patented technology

Traffic management is a key branch within logistics. It concerns the planning, control and purchasing of transport services needed to physically move vehicles (for example aircraft, road vehicles, rolling stock and watercraft) and freight.

Urban traffic jam intelligent optimization management system based on artificial intelligence

The invention relates to the field of artificial intelligence, particularly discloses an intelligent optimal management system for urban traffic congestion based on artificial intelligence, and aims to solve the problems of congestion and low efficiency caused by response delay, local optimization and low data utilization rate of an existing traffic management system. The system comprises a data acquisition and fusion module, a traffic state perception and prediction module, a decision optimization module, an instruction issuing and execution module and a man-machine interaction and visualization module. Through multi-source data fusion, graph neural network prediction and multi-agent reinforcement learning, traffic flow real-time perception, accurate prediction and adaptive control are realized, congestion is effectively relieved, and the overall operation efficiency and toughness of a road network are improved.
Owner:NORTH CHINA MUNICIPAL ENG DESIGN & RES INST

Large-scale road network traffic control method based on deep reinforcement learning large model

The invention relates to a large-scale road network traffic control method based on a deep reinforcement learning large model, and belongs to the technical field of intelligent traffic control. The method comprises the following steps: sensing real-time multi-modal road network information including urban road intersections, highway entrance ramps and emergency lanes, and generating a space-time fusion representation vector representing a current traffic network state by fusing a space diagram construction method and a time sequence embedding method; the space-time fusion representation vector and historical state memory are spliced to serve as input, a backbone network of a pre-training large language model is used for state feature distillation so as to enhance state representation, and a traffic control decision is output through a strategy network with a layered action space; through cross-modal knowledge migration and a progressive course learning strategy, a training process of a deep reinforcement learning algorithm is guided and optimized so as to improve model training efficiency and generalization ability. According to the method, the generalization performance and the accuracy of the control strategy are improved while the real-time response speed is ensured.
Owner:CHINA MERCHANTS CHONGQING COMM RES & DESIGN INST

Low-altitude unmanned aerial vehicle trajectory tracking and monitoring method based on 5G-A communication and inductance integrated base station

The invention discloses a low-altitude unmanned aerial vehicle trajectory tracking and monitoring method based on a 5G-A communication sensing integrated base station, and relates to the technical field of low-altitude traffic management and communication sensing fusion, and the method comprises the steps: firstly collecting multi-source data such as a communication sensing fusion signal, environment interference and unmanned aerial vehicle attributes, and carrying out the alignment and packaging of a unified timestamp and a coordinate system into a synchronous data frame; then, deep fusion and anti-interference processing are carried out on the data frames, noise is filtered out, and pure fusion data is generated; and furthermore, real-time track calculation and motion trend prediction are carried out on pure data by utilizing multi-base-station cooperative calculation and prediction. Based on this, through a multi-target feature recognition and clustering separation mechanism, independent individual trajectories are accurately stripped from a complex mixed data stream, and compliance verification and anomaly judgment are performed on the trajectories in combination with an airspace rule base. In this way, the problems of signal interference and multi-target aliasing in a complex environment can be effectively solved, and therefore high-precision global tracking of the low-altitude unmanned aerial vehicle and real-time monitoring of abnormal behaviors are achieved.
Owner:JIANGSU XINWANG VIDEO SOFTWARE TECH CO LTD

Intelligent traffic control method and system in low-altitude economic environment

The invention discloses an intelligent traffic control method and system in a low-altitude economic environment, and relates to the technical field of intelligent traffic systems, and the method comprises the steps: collecting low-altitude aircraft and ground traffic spatio-temporal data through a multi-modal sensor network, and generating a multi-source heterogeneous data set; constructing a dynamic traffic situation map through spatio-temporal feature fusion; performing three-dimensional path planning to generate a three-dimensional guiding strategy; detecting conflicts and correcting strategies according to a preset rule base, and outputting an instruction set to distribute real-time traffic flow. The technical problem that in the low-altitude economic environment, a traditional traffic management and control method is difficult to meet the cross-domain cooperation requirement of the low-altitude aircraft and the ground traffic is solved, and the technical effects of three-dimensional cooperative management and control of the low-altitude aircraft and the ground traffic and further guaranteeing safe and efficient operation of the traffic in the low-altitude economic environment are achieved.
Owner:INTELLIGENT INTER CONNECTION TECH CO LTD

Traffic flow prediction method and system based on multi-scale dynamic decomposition and space-time Transform

The invention discloses a traffic flow prediction method and system based on multi-scale dynamic decomposition and a space-time Transform. According to the method, firstly, an original traffic flow sequence is decomposed into trend components and seasonal components; then, modeling the trend components by adopting a multi-layer perceptron to capture global changes; and meanwhile, a space-time Transform is used for modeling seasonal components, and the architecture effectively extracts dynamic space-time dependence characteristics by integrating space-time adaptive embedding and an adaptive Switch GLU gating mechanism. And finally, fusing trend and seasonal feature representation to generate a prediction result. According to the method, noise is effectively separated through decomposition, linear enhancement space-time self-adaptive embedding, a self-adaptive Switch GLU gating mechanism and a unified space-time self-attention Transform architecture are integrated, the modeling capacity for complex space-time dependence is enhanced, prediction precision and robustness are remarkably improved, and the method can be widely applied to the field of intelligent traffic management and control.
Owner:HUNAN NORMAL UNIVERSITY

Intelligent management and control method for large-range urban road network based on mobile phone signaling data

The invention aims to provide a large-range urban road network intelligent management and control method based on mobile phone signaling data, and belongs to the technical field of traffic management and control. Real-time traffic flow parameters are obtained by preprocessing the mobile phone signaling data, a high-fidelity microscopic traffic simulation environment is constructed, and on the basis, the real-time traffic flow parameters are obtained; the method comprises the following steps: establishing a multi-dimensional evaluation index system containing operation safety and efficiency, constructing a macro-micro collaborative double-layer planning model, adopting a deep reinforcement learning algorithm, taking continuous-discrete mixed decision variables such as intersection signal timing and a variable lane strategy as optimization objects, carrying out strategy learning and iterative optimization through an Actor-Critic architecture, and carrying out optimization on the optimization objects. And outputting the optimal control strategy combination. According to the invention, dynamic and accurate cooperative management and control of the large-range urban road network are realized, and the traffic efficiency is remarkably improved while the operation safety is guaranteed.
Owner:HEBEI TRANSPORTATION INVESTMENT GRP CO LTD +2

Vehicle-road cloud collaborative mixed traffic flow optimization method, system and device

The invention provides a vehicle-road cloud collaborative mixed traffic flow optimization method, system and device, and relates to the technical field of intelligent traffic, and the method comprises the steps: extracting a mixed traffic flow feature set containing a road environment, a vehicle state and a driver behavior through obtaining and synchronously fusing the multi-source traffic data of a cloud end, a road end and a vehicle end; according to the method, the intention of a driver is predicted by using a double-layer LSTM model, a vehicle trajectory is predicted in combination with an RNN-LSTM model, confidence fusion analysis of the intention and the trajectory is performed on this basis, accurate prediction of traffic conflict events is realized, and global optimization of traffic flow is supported. According to the method, the intention recognition and trajectory prediction precision in a complex mixed traffic environment is effectively improved, the intelligent decision-making capability of a traffic management system is enhanced, and an efficient technical means is provided for relieving traffic congestion, improving the traffic efficiency and guaranteeing traffic safety.
Owner:CHINA FAW CO LTD

Highway situation awareness method and system

The invention provides a highway situation awareness method and system, and the method comprises the following steps: collecting camera video stream data to extract traffic flow data and parking data, and inputting the traffic flow data into a graph neural network to construct a traffic flow propagation model; constructing an abnormal event influence evaluation model based on the recurrent neural network and the long-short-term memory network; and through an abnormal event influence evaluation model, outputting influence range data including an affected road segment set and predicted abnormal recovery time, integrating the data and outputting the data to a visual interface. According to the method, the traffic flow state of the expressway is accurately evaluated by collecting, processing and analyzing the video stream data of the roadside camera, and a reliable situation awareness model is constructed in combination with toll station entrance and exit data, portal snapshot data and the like, so that real-time and accurate monitoring and prediction of the traffic condition of the expressway are realized, powerful decision support is provided for traffic management, and the traffic flow state of the expressway is accurately evaluated. And the operation efficiency of the expressway is improved.
Owner:JIANGXI PROVINCIAL EXPRESSWAY INVESTMENT GRP CO LTD

Road traffic accident cause analysis and responsibility judgment method and system

The invention discloses a road traffic accident cause analysis and responsibility judgment method and system, and relates to the technical field of traffic management data processing, and the method comprises the steps: carrying out the credible collection of multi-source data, and constructing an evidence chain; performing multi-source data preprocessing and cross-modal fusion optimization; performing multi-dimensional cause intelligent analysis; performing responsibility judgment based on a quantification rule; and the responsibility judgment result is subjected to multi-dimensional rechecking and rule iteration adaptation. According to the road traffic accident cause analysis and responsibility judgment method and system, through a full-process closed-loop design of data acquisition, preprocessing, cause analysis, responsibility judgment, re-checking iteration and report evidence storage, technologies such as multi-source perception and an AI algorithm are integrated; the method solves the problems of uncredible evidence chain, one-sided cause traceability, non-uniform judgment standard, low cooperation efficiency and the like in traditional accident processing, realizes intelligence, standardization, compliance and traceability of accident processing, remarkably improves the credibility, processing efficiency and judicial suitability of a judgment result, and provides core technical support for modernization of traffic control.
Owner:XIAN AERONAUTICAL UNIV

Flight time adjustment management method and system in special scene

The invention belongs to the technical field of air traffic management, and relates to a flight time adjustment management method and system in a special scene. According to the method, the flight release priority sequence is constructed, the airport taxiway network topology and the dynamic limitation information are combined, the taxiing path is planned, the space-time conflict is detected, and the dynamic adjustment of flight ground operation and the coordination verification of the runway access time window are realized. The problems of frequent flight ground taxiing path conflicts, low scheduling efficiency and difficulty in accurate take-off time control in special scenes are solved, the safety and efficiency of airport ground operation are effectively improved, the flight taxiing time and the runway waiting time are reduced, the flight release sorting and the runway use plan are optimized, and the flight taxiing efficiency is improved. The flight scheduling cooperation capability in a complex operation environment is enhanced, and the orderliness and stability of flight operation are guaranteed.
Owner:CHINA WEST AIRPORT GRP CO

Expressway carbon emission energy consumption abnormity monitoring optimization system

The invention, which relates to the technical field of intelligent traffic and carbon emission monitoring, discloses a highway carbon emission energy consumption abnormity monitoring optimization system comprising a vehicle characteristic acquisition module, an environment dynamic sensing module, a carbon emission dynamic calculation module, an abnormity intelligent diagnosis module and an attribution optimization execution module. Calculating a real-time dynamic carbon emission value by combining environmental factor data such as vehicle characteristics, real-time driving speed and wind speed, road gradient and the like; setting a dynamic carbon emission reference value according to the traffic flow and environmental factor data of the current road section; and identifying an abnormal attribution type by associating data such as vehicle speed abrupt change, environmental factor abrupt change and road section traffic condition in the abnormal carbon emission time period, and generating a corresponding optimization adjustment instruction. The method improves the attribution accuracy of the carbon emission abnormity, supports the real-time optimization decision oriented to traffic management, and provides technical support for the operation of a green intelligent expressway.
Owner:HUNAN EXPRESSWAY INFORMATION TECH CO LTD +1

Vehicle monitoring method based on frame difference and deep learning fusion

The invention discloses a vehicle monitoring method based on frame difference and deep learning fusion, and relates to the technical field of vehicle monitoring, cameras and environment sensors are deployed in a monitoring area, and videos and multi-source data are acquired by means of vehicle-road cooperation; a self-adaptive frame difference method is used, morphology and optical flow estimation are matched, a threshold value is determined according to the environment, and vehicle features are extracted; constructing a deep convolutional neural network with an attention mechanism, and training a model by using various data in combination with migration and reinforcement learning; fusing the two types of features based on a graph attention network to form high-quality fusion features; a space-time diagram convolutional network is combined with an LSTM to track a vehicle and predict a trajectory, a behavior pattern library is constructed to judge abnormity, and classification analysis is performed in combination with an SVM and a knowledge graph. According to the invention, the frame difference and deep learning are fused, the monitoring accuracy is improved, and the vehicle can be accurately identified and detected; the real-time performance is enhanced, the data is quickly processed, and the environmental influence is reduced; traffic management is assisted, and a safe and efficient traffic environment is created.
Owner:YIREN (SHANGHAI) TECH CO LTD

Congestion feedforward intervention method based on traffic flow phase change critical point identification

The invention belongs to the technical field of traffic management and control, and particularly relates to a congestion feed-forward intervention method based on traffic flow phase change critical point recognition, which comprises the following steps: collecting and preprocessing multi-source heterogeneous traffic data; carrying out multi-scale traffic flow feature engineering; identifying a traffic flow phase change critical point based on a space-time dynamic graph neural network and critical moderation effect analysis; generating a multi-objective optimization congestion feedforward intervention strategy; and performing intervention, evaluating the effect and performing adaptive learning. According to the technical scheme, accurate prevention and early intervention can be performed before congestion occurs, and the operation efficiency and reliability of an urban traffic system are remarkably improved.
Owner:JIANGSU YIZHENG DIGITAL TECHNOLOGY CO LTD

Control tower and flight guarantee command room decision instruction transmission method based on edge nodes

The invention belongs to the technical field of air traffic management, and discloses a control tower and flight guarantee command room decision instruction transmission method based on edge nodes, priorities are distributed for instructions through an intelligent grading model, the high-priority instructions can reserve resources in advance and are transmitted preferentially, the resources can be preempted in emergency, and the control tower and flight guarantee command room decision instruction transmission efficiency is improved. A multi-path transmission strategy is automatically switched when a certain path fails, data integrity is ensured in combination with fragment verification and block chain recording, instruction loss caused by a single point of failure is avoided through edge-cloud redundant backup, and the problems that instruction transmission is prone to interference and insufficient in safety in a traditional method are solved; through intelligent priority grading, resources are inclined to high-priority instructions, resource waste is avoided, a collaborative scheduling mechanism of an edge node cluster can dynamically adjust resource allocation according to a real-time load, and a transmission quality feedback and adaptive optimization strategy is continuously optimized, so that the system can still efficiently process a large number of instructions in a flight take-off and landing intensive period.
Owner:BEIJING JIRUIXIANG AVIATION TECH CO LTD

Dynamic airspace gridding management method and system for low-altitude economy

The invention discloses a dynamic airspace gridding management method and system for low-altitude economy, and belongs to the technical field of unmanned aerial vehicle traffic management, and the method comprises the steps: collecting airspace state data in real time through a multi-source sensing device, and constructing a four-dimensional space-time grid model; generating a four-dimensional space-time grid with a block chain hash code by fusing meteorological data, an airspace control rule and a real-time flight demand; receiving a space-time grid use request submitted by the aircraft through the smart contract, and calculating an optimal grid allocation scheme based on a deep reinforcement learning model; and the edge computing node executes local track prediction, issues a navigation instruction to the aircraft through the distributed account book, monitors a grid occupation state in real time, and triggers a dynamic grid recombination mechanism when sudden conflicts are detected. According to the method, the rigid constraint of static airspace division can be broken through, the cooperative conflict of multiple aircrafts is eliminated, and the marketization configuration of airspace resources is realized.
Owner:浪潮智慧城市科技有限公司 +1

Middleware management method and device

The invention discloses a middleware management method and device, relates to the technical field of middleware, and mainly aims to realize unified management and configuration of middleware, reduce the management and maintenance difficulty of the middleware and improve the flexibility and convenience of flow management. According to the main technical scheme, each middleware instance is divided into one or more logic clusters according to operation characteristics of each service, wherein the operation characteristics are used for representing characteristics related to high-reliability operation of the services; general configuration setting is carried out on the one or more logic clusters to obtain global configuration information containing all the logic clusters, and the general configuration setting at least comprises setting of physical mapping and routing strategies of middleware instances docked by all the services in the running process; and respectively issuing the global configuration information to each middleware instance contained in each logic cluster so as to run according to the global configuration information when a service butted with the middleware instance contained in each logic cluster is started. The middleware management method and device are used for middleware management.
Owner:BAIRONG ZHIXIN (BEIJING) TECH CO LTD

Automatic driving safety operation system integrating environment perception and decision reasoning

The invention discloses an automatic driving safety operation system integrating environmental perception and decision reasoning. The system generates and dynamically updates a security risk map covering an operation area by fusing real-time environment perception, historical operation data and traffic management information. On the basis, the collaborative safety decision-making module further carries out behavior modeling and intention prediction on other traffic participants, and in combination with map risks and traffic instructions, a driving strategy is actively adjusted under a dynamic game framework. According to the invention, the safety control is improved from passive response to an active mode of behavior pre-judgment and game dominance, and the safety and reliability of the operating vehicle in a complex environment and the cooperative capability of the operating vehicle and traffic management are obviously enhanced.
Owner:GUANGZHOU JIAOXIN INVESTMENT TECH CO LTD

Road section illegal parking space-time prediction system based on deep learning

The invention discloses a road section illegal parking space-time prediction system based on deep learning, and relates to the technical field of intelligent traffic management, and the system comprises a multi-source data fusion collection module, a space-time self-attention feature extraction module, a dynamic granularity parameter generation module, a space-time hybrid model prediction module and an illegal parking early warning visualization module. By collecting traffic camera video streams, vehicle-mounted sensor data, mobile phone signaling data and meteorological data in real time, comprehensive perception of the traffic environment is achieved, the multi-source heterogeneous data are mapped to a unified GIS grid after being subjected to space-time coordinate calibration, a multi-dimensional illegal parking influence factor database is constructed, and on the basis, the real-time monitoring of the illegal parking influence factor database is achieved. The space-time self-attention feature extraction module performs efficient space-time feature extraction on multi-source data by using a space-time diagram self-attention model, generates feature vectors with space-time relevance, and solves the problems of single data and insufficient feature extraction in a traditional method.
Owner:HEBEI GALAXY TECH DEV CO LTD

Traffic prediction method and device based on multi-modal feature fusion, and medium

The invention discloses a traffic prediction method and device based on multi-modal feature fusion, and a medium, and relates to the technical field of traffic prediction. The method comprises the following steps: performing unmanned aerial vehicle video acquisition and preprocessing on an interleaving area to obtain a target area video; traffic flow parameters are extracted from the target area video based on a multi-target detection and tracking algorithm, wherein the traffic flow parameters comprise a space average speed, a space occupancy rate and a vehicle interleaving conflict index; a deep learning model is adopted to process the image sequence of the target area video, potential semantic features are extracted, and the deep learning model comprises a variational auto-encoder; carrying out weighting processing on the potential semantic features by adopting a double attention mechanism; and splicing the weighted potential semantic features and the traffic flow parameters into a multi-modal feature vector, and carrying out traffic state prediction. According to the method, the accuracy and robustness of traffic state prediction of the interlaced area are improved, and more accurate data support and decision basis are provided for dynamic traffic management of complex road sections.
Owner:SHANDONG JIAOTONG UNIV

Abnormal traffic event identification method and system based on traffic large model

The invention relates to the technical field of traffic event identification, and discloses an abnormal traffic event identification method and system based on a traffic large model, and the method comprises the steps: obtaining a traffic data flow, extracting an abnormal feature vector, and obtaining an abnormal signal candidate set; grouping the candidate sets and calculating a deviation degree, and if the deviation degree exceeds a threshold value, taking the deviation degree as a risk signal to form an input subset; environment variables are extracted from the subsets, a mapping relation is established, and anomaly recognition embedding representation is obtained; classifying the embedded representation, judging a congestion precursor and generating an early warning signal to obtain an early warning signal sequence; matching the sequence to obtain an abnormal event chain; if the integrity is higher than a threshold value, analyzing the type to obtain an abnormal event type; extracting a correlation feature vector from the type, pushing the correlation feature vector to a traffic management platform to obtain an instruction, and obtaining an emergency response trigger instruction sequence; and executing the instruction sequence to extract a feedback data stream, inputting the traffic large model to judge the accuracy rate, and if the judgment accuracy rate is met, determining an optimized anomaly recognition framework. The method can solve the problem of insufficient early warning capability.
Owner:SHENZHEN TUOBIDA TECH CO LTD

Traffic adaptive control method and system based on vehicle state perception and intelligent road network

The invention relates to the technical field of traffic control, and provides a traffic adaptive control method and system based on vehicle state perception and an intelligent road network. The method comprises the steps that a vehicle state sensing module is installed on a target vehicle, and a vehicle state sensing multi-dimensional data stream is collected; an intelligent road network module is adopted to monitor a road network multi-dimensional data flow; carrying out fusion modeling on the vehicle state perception multi-dimensional data flow and the road network multi-dimensional data flow to generate a dynamic traffic scene model; traffic operation trend parameters are predicted based on a dynamic traffic scene model, and driving dynamic decision and traffic adaptive control are performed on a target vehicle through the parameters, so that the problem that the state of the target vehicle and the road network condition cannot be acquired and accurately analyzed in real time in the existing traffic control technology is solved. The technical problem that traffic flow and traffic adaptive control effects are poor due to the fact that vehicle state sensing and intelligent road network fusion modeling are solved, and the technical effects that accurate prediction and control of traffic flow and vehicle dynamic states are achieved through vehicle state sensing and intelligent road network fusion modeling, so that traffic management is optimized, and driving safety is improved are achieved.
Owner:AIPARK TECHNOLOGY CO LTD

Urban road intersection traffic intelligent optimization method based on multi-modal information

The invention relates to the technical field of traffic management, in particular to an urban road intersection passage intelligent optimization method based on multi-modal information, which comprises the following steps: acquiring real-time sensing data of pedestrians and non-motor vehicles through a video camera, a millimeter wave radar and a laser radar, and generating fusion sensing data through timestamp synchronization and coordinate system unification; identifying and generating a target list with category labels by using a detection and clustering algorithm, and obtaining a stable motion trail and intensity by combining with multi-target tracking; predicting a crossing intention and a path based on time sequence deep learning, calculating an interleaving point and quantifying a conflict risk; and according to a comparison result of the conflict risk coefficient and a threshold value, generating a strategy control instruction of different time periods, different paths or a mixed mode, and in combination with execution time window information, forming an optimized timing scheme through cooperative execution of an intelligent prompt identifier, a telescopic isolation belt and a signal control machine, so as to realize cooperative passage. The method improves the recognition precision, reduces the conflict risk, and improves the passing efficiency.
Owner:SUYI DESIGN GRP CO LTD

Traffic flow prediction method and device based on multi-level space-time and perception fusion

The invention discloses a traffic flow prediction method and device based on multi-level space-time and perception fusion, and the method comprises the steps: dynamic multi-level feature embedding, space-time and local mutation perception modeling and super-domain interaction fusion: firstly constructing a dynamic multi-level feature embedding module, and fusing original flow data, periodic labels and adaptive feature vectors; generating high-dimensional feature representation; then, a space-time and local mutation perception attention module is constructed, time dependence features, space dependence features and local mutation perception features are extracted through parallel time, space and local mutation perception attention mechanisms, finally, a super-domain interaction fusion module is constructed, and multi-source features are integrated through a cross attention and gating mechanism; uniform space-time representation is generated, and prediction robustness is improved. According to the method, an end-to-end framework for traffic flow prediction is formed, joint modeling and efficient prediction can be carried out on space-time dependence and non-stationary sudden change in a complex traffic scene, and butt joint with a traffic management system is facilitated.
Owner:WUXI UNIV +2

Urban traffic signal real-time collaborative optimization system and method based on space-time diagram convolutional network and reinforcement learning

The invention discloses an urban traffic signal real-time collaborative optimization system and method based on a space-time diagram convolutional network and reinforcement learning, and relates to the technical field of intelligent traffic control. In order to overcome the defects of traffic signal fixed period control, the technical scheme adopted by the invention comprises edge computing equipment which is deployed beside an intersection camera and is used for acquiring video stream data in real time through a built-in local model, extracting traffic flow state characteristics and realizing dynamic phase timing optimization through cross-intersection collaborative decision, meanwhile, local model parameters are generated and uploaded to the cloud federated learning platform; the cloud federated learning platform is used for aggregating and optimizing the local model parameters of the edge computing devices, and regularly issuing global update parameters to the edge computing devices; and the traffic signal control equipment is deployed at the intersection and is used for adjusting the display state of the traffic signal lamp in real time according to the dynamic phase timing instruction. The traffic efficiency of the urban road network can be obviously improved, and the traffic control cost is reduced.
Owner:JIANGSU HAIRUO INFORMATION TECHNOLOGY CO LTD

Method and system for safely sharing operation data of low-altitude unmanned aerial vehicle

The invention provides a low-altitude unmanned aerial vehicle operation data security sharing method and system, and the method comprises the steps: initializing a low-altitude unmanned aerial vehicle operation data security sharing system through a low-altitude traffic management platform, and generating a public parameter, a master key and an identity private key of a user; wherein the master key comprises a master public key and a master private key; the unmanned aerial vehicle encrypts the operation data of the unmanned aerial vehicle based on the identity information of the agent side to obtain an initial ciphertext, and uploads the initial ciphertext to the cloud platform; the agent side decrypts the initial ciphertext based on an identity private key of the agent side to obtain operation data of the unmanned aerial vehicle, generates a re-encryption key and uploads the re-encryption key to the cloud platform; the cloud platform re-encrypts the initial ciphertext based on the re-encryption key to generate a re-encrypted ciphertext; and the multi-body sharer end decrypts the re-encrypted ciphertext based on the identity private key of the multi-body sharer end to obtain the operation data of the unmanned aerial vehicle. According to the invention, the sharing security of the operation data of the unmanned aerial vehicle in a dynamic open network environment can be efficiently guaranteed.
Owner:HANGZHOU INNOVATION RES INST OF BEIJING UNIV OF AERONAUTICS & ASTRONAUTICS

Whole-domain dynamic perception space-time traffic flow prediction method based on graph packet representation learning

The invention discloses a global dynamic perception space-time traffic flow prediction method based on graph packet representation learning, and belongs to the technical field of traffic flow prediction, and the method comprises the following steps: S1, traffic data input, S2, traffic graph packet construction, S3, graph packet initial feature extraction, S4, time sequence feature extraction, S5, spatial feature extraction, and S6, traffic flow prediction and output. Through a space-time modeling technology of graph packet representation learning and global dynamic perception, space-time characteristic elements of a traffic road network can be comprehensively covered, traditional traffic indexes such as flow and speed are concerned, elements such as road network topological association and cross-regional multi-hop association are also included, a dynamic dependency relationship between a time sequence and a spatial dimension is deeply mined, and a real-time dynamic perception effect is achieved. Therefore, the prediction result can reflect the real evolution law of the traffic flow more accurately, and a more scientific basis is provided for traffic management and decision making.
Owner:ZHONGBEI UNIV

Tunnel group road section traffic capacity evaluation method based on intelligent network connection

The invention specifically relates to a tunnel group road section traffic capacity assessment method based on intelligent network connection, which relates to the technical field of traffic engineering, and comprises the steps of constructing an AI-driven dynamic assessment model based on fusion data and a digital twinborn model in combination with tunnel engineering constraints, and calculating the traffic capacity, congestion risk and bottleneck position of each road section of a tunnel group in real time. In the invention, a multi-source data acquisition system is combined with an edge and cloud two-stage fusion architecture to construct an LSTM-XGBoost double-model architecture; the LSTM model can calculate and predict the traffic capacity of four time nodes in the future 10 minutes in real time, the XGBoost model accurately locates the bottleneck position and quantifies the contribution degree of four types of causes, meanwhile, the precision is ensured through multi-dimensional verification, the tunnel group whole domain can be covered, instantaneous traffic changes can be captured, and a panoramic decision basis of real-time data, prediction trend and bottleneck causes is provided for traffic management.
Owner:FUJIAN CHUANZHENG COMM COLLEGE

Intersection accident evacuation scheduling method based on cooperation of unmanned aerial vehicle and large language model

The invention provides an intersection accident evacuation scheduling method based on cooperation of an unmanned aerial vehicle and a large language model, and relates to the technical field of intelligent traffic management, unmanned aerial vehicle application and artificial intelligence multi-mode fusion. The method comprises the following steps: generating an optimized patrol route based on a large language model; controlling an unmanned aerial vehicle cluster to perform multi-modal data acquisition on urban road network intersection nodes; fusing multi-source heterogeneous data by using a multi-modal fusion module enhanced by a large language model; inputting a multi-modal large language model based on a traffic-dedicated Prompt template, and generating a semantic report including accident positioning, influence evaluation and resource requirements; natural language decisions output by the large model are converted into structured control instructions, and signal lamp timing and lane allocation strategies are elastically adjusted in combination with real-time loads of a road network; and synchronously issuing a multi-mode guide instruction through the variable information board, the vehicle-mounted terminal and the navigation APP.
Owner:GUANGDONG UNIV OF TECH

Highway intelligent monitoring and management system and method and electronic equipment

The invention relates to the field of intelligent transportation, and discloses an intelligent monitoring and management system and method for an expressway and electronic equipment, and the system collects global spatial-temporal data of the expressway to construct digital twins synchronized with the physical world; in the twinborn body, performing prediction and deduction based on a space-time causal map to identify potential risks; responding to the risk, generating an optimal intervention strategy through anti-fact deduction and executing the optimal intervention strategy, and recording a predicted intervention effect of the optimal intervention strategy; and after intervention, comparing a real traffic state with a prediction effect, calculating an anti-fact error, and carrying out dynamic self-correction on the space-time causal map according to the anti-fact error. According to the invention, links of perception, prediction, decision making, execution and feedback are fused into a self-adaptive control loop, and a self-correction mechanism based on an anti-fact error is introduced, so that the system can continuously learn and self-evolve from interaction with the physical world, and the problems of model solidification and poor adaptability of a traditional traffic management system are solved.
Owner:JIANGSU JIAQING INFORMATION TECH CO LTD

Artificial-intelligence image processing method based on intelligent transportation

An artificial-intelligence image processing method based on intelligent transportation. The method comprises the steps of image acquisition and preprocessing, feature extraction, construction and training of an artificial intelligence model, intelligent analysis and decision support, intelligent image processing and feedback, result output and application, etc. In the artificial-intelligence image processing method based on intelligent transportation, information obtained by means of feature extraction is used for the establishment of an artificial-intelligence analysis model, thereby significantly enhancing the intelligent analysis capability of an intelligent-transportation management system. In the step of construction and training of an artificial intelligence model, by means of performing mapping calculation on extracted features and historical data, a constructed artificial-intelligence analysis model can learn and recognize a pattern in a transportation image, thereby predicting an optimal processing method. The establishment of such a model enables the intelligent-transportation management system to not only process current image data, but also perform learning and prediction on the basis of the historical data, thereby improving the intelligence level of the system.
Owner:HUAIBEI NORMAL UNIVERSITY