CN113628088A - Visual three-dimensional operation control system for roadside traffic - Google Patents

Abstract

The invention relates to a roadside traffic visualization three-dimensional operation and control system, which comprises a technical domain, an information domain, a visualization domain and an interaction domain, wherein the technical domain comprises an infrastructure layer, an application layer and a display layer; the infrastructure layer is an internet of things layer and comprises intelligent equipment, a server, communication and network security, image acquisition, a sensor and a private cloud; the application layer comprises an application management layer, an application support layer and an application data layer; the application management layer is a sub-module system and divides the actual application system into a plurality of application systems; on the basis of meeting the establishment of data analysis architectures facing different objects and different management models, the visualized real-time visual three-dimensional management platform is developed, so that the efficiency of cooperative management can be more effectively realized.

Description

Visual three-dimensional operation control system for roadside traffic

Technical Field

The application relates to the field of transportation systems, in particular to a roadside traffic visual three-dimensional operation control system.

Background

The intelligent transportation is a new high-technology transportation organization management and practical science which combines the communication technology, the computer technology, the control technology, the transportation management technology and the system engineering theory. In this field, large transportation hubs, especially large international airport hubs represented by airports, are most representative. Since the reform is open, with the development of national economy, the flow of large-scale airport terminals is tens of millions of people every year, and huge challenges are brought to the transportation management of the airport terminals in the face of the great increase of the passenger-cargo throughput. In the development process of many years, air ports generally pay more attention to the fields of air side management and coordination, flight passenger service and the like, but the general understanding level and the management service level of the land side traffic matching service are required to be improved. The large-scale airport hubs are generally located in the same city, because of the requirement of passenger and cargo throughput, the common large-scale airport has perfect road and railway side matching services, taking Beijing and Shanghai airports as examples, all have land side traffic matching bases of rail transit, public transit, long distance and expressway, and need synchronous adaptation of hub management and service departments to the land side traffic guarantee in the face of diverse and complex management. In the face of the changes and the challenges, the management thought and the development strategy are scientifically and reasonably adjusted, and the opportunity of improving the management and the service level of the transportation junction is also provided.

The large-scale airport terminal is a comprehensive transportation terminal which integrates different transportation modes and runs into a whole, and mainly comprises the following parts: public transportation systems (airport bus, coach bus), rail transit systems (subway and magnetic levitation), high-speed rail, taxi systems, tourist and custom bus systems, parking service systems for serving social and private vehicles, passenger service systems. The service scene related to the large airport terminal land side traffic system not only comprises the arrival aggregation of passengers and vehicles, but also comprises the shunting of the passengers and the vehicles and the configuration and the scheduling of multiple traffic resources. Therefore, the construction of the land side of the junction is embodied in the aspects of intelligent monitoring, intelligent scheduling, intelligent service and the like of comprehensive traffic. The public area passenger traffic monitoring technology, the comprehensive traffic running state detection technology, the transport capacity simulation evaluation and dynamic deduction prediction early warning technology are researched, and the running situation of the comprehensive traffic can be sensed; the passenger evacuation and traffic capacity matching technology, the traffic capacity flexible scheduling and emergency scheduling technology and the passenger emergency evacuation technology are utilized to realize the cooperative operation and management of traffic.

The existing roadside traffic has several problems, firstly, the comprehensive characteristics of large-scale hub traffic form imbalance of demands, the part on the land side is a comprehensive traffic matching facility for matching with the departure and entry of an airplane, and in the aspect of passenger travel, the airport land side traffic covers various complex demands of parking lots, taxis, buses, rail traffic, private cars, net appointment cars, pick-up and delivery service cars, airports, aviation personnel self-driving and the like. The imbalance between these requirements is mainly reflected in the following points: 1) the demand distribution is unbalanced, the number of people who need various transportation means is unbalanced, and some transportation means have large demand and small capacity, and some demand are small and are not in standard distribution. 2) The demand is greatly fluctuated along with the time, the demand on vehicles is formed by the transportation capacity of the core departure and entry of a large hub, the number of flights is small in the middle of the night, the demand is small, and the demand is large in the evening. In the daily month mainly based on business, the demand is small, and the demand is large in the travelling month. It is classified into pale and vigorous seasons. 3) The transportation capacity of the transportation hub is matched with a city, the demand is greatly related to the urban development and the current demand of the city, the urban regional development is unbalanced, the demand of transportation tools in different regions is unbalanced, and a plurality of congestion nodes can be formed. During rush hours and rainy and snowy days, the demand of the city for public transportation is large, and the transportation capacity of the comprehensive hub is directly influenced. 4) The weather causes imbalance and butterfly effect of the demand, different weather forms dynamic change of the demand of people for traffic, for example, people like hot days, cold days, rainy and snowy days prefer to take taxis, and more people like to take public transport means when the weather is good. 5) Transport capacity and service capacity create an imbalance between vehicles, and large differences in service capacity, comfort, operating time, price, etc. between different vehicles create an imbalance in the demand of the vehicles and make different decisions between vehicles. The current increase in the number of self-driving to airports creates parking difficulties.

Secondly, the limitation of the transportation network and the hub is difficult to adapt to the large demand change. The transportation network is an infrastructure of the junction traffic, the construction period is long, the construction cost is high, and therefore the construction of the junction traffic is not constructed for the peak value, and the limitations of the transportation network include: 1) the early warning of the total comprehensive transport capacity of the comprehensive transportation means, and the handling of the transport capacity of the comprehensive transportation means when the peak value comes is the problem to be considered in a transportation junction, and the problem is a problem of construction planning. 2) The dynamic multi-peak value becomes the characteristic of a comprehensive transportation hub, and the concentration of the demands of different transportation means is formed according to the reason of unbalanced demand, namely the peak value, such as the demands close to morning and taxi, can be concentrated. Such dynamic multiple peaks can cause poor operation and increased management difficulty of the traffic infrastructure network.

Thirdly, the vehicles are isolated from each other. The transportation capacity of the comprehensive transportation tool aims to meet the classification requirements of different transportation as much as possible on the basis that each person on a trip can reach a destination. However, imbalance between capacity and demand of each vehicle results in multiple peaks for each type of vehicle, and the problem of demand matching between different peaks needs to be studied. The dynamic, peaked contradiction between capacity and demand of each vehicle is a major issue for traffic organization and management.

And fourthly, the difference of the organization and the intelligent management level of the traffic. The main reason for the difference in the level of organization and intelligent management of traffic is the contradiction between the management of verticalization of vehicles and the management of planarization of large hubs. 1) The different vehicles are managed separately. At present, different transportation means supplies belong to different units, information of taxies, buses, private cars, tourist groups and the like is managed by each vertical line, and the management communication and organization difficulty is high. The more difficult is the management of private cars, and the comprehensive hub is still lack of management means and organization methods. 2) And different vehicles are in an information island stage. The action information of various vehicles, especially the destination information, is still in an island stage of information, and peak value prediction of each vehicle is difficult to achieve. 3) There is a significant gap between demand and supply information. In the development of big data, how much gap is set between many information in terms of privacy, and therefore a great gap is established between demand and supply. Analyzing from the nature of the problem, it is the information gap that is formed between different information-owning departments for the consideration of benefit distribution.

Disclosure of Invention

Aiming at the problems, the invention adopts the following scheme:

a roadside traffic visualization three-dimensional operation and control system comprises a technical domain, an information domain, a visualization domain and an interaction domain, and is characterized in that the technical domain comprises an infrastructure layer, an application layer and a display layer;

the infrastructure layer is an internet of things layer and comprises intelligent equipment, a server, communication and network security, image acquisition, a sensor and a private cloud;

the application layer comprises an application management layer, an application support layer and an application data layer; the application management layer is a sub-module system and divides an actual application system into a plurality of application systems; the application support layer is a data middleware system, and different types of data are optimally combined according to business relations to form visual application data support; the application data layer realizes multi-data fusion, including multi-type data fusion, multi-source data fusion, big data display fusion and cross-space-time data fusion.

The presentation layer utilizes Unity3D as a three-dimensional visualization engine.

Further, the application management layer submodule system comprises taxi management and operation guarantee, bus management and information release, passenger flow collection, flight arrival data module, road traffic flow collection and monitoring, video monitoring, network and safe operation monitoring, external data exchange, emergency guarantee and disposal and personnel management.

Further, the data middleware system comprises scheduling and storing structured and unstructured data.

Further, the structured data comprises XML and DBMS, and the unstructured data comprises 3D files, audio and video files, graphic image files, ZIP, PDF and Unity 3D.

Furthermore, the multiple data are fused into an interface, high concurrency docking is supported, and data access of pictures, videos, 3D files, audios, PDFs and the like is supported.

Further, the core data is encrypted, and an appropriate encryption technology is selected according to an application scene, such as MD5, Crype, Sha1 encryption, URL encryption and Base64 information encoding encryption.

Furthermore, the communication mode supported by the multi-data fusion is http, TCPIP and MQ communication protocols.

Further, the display layer utilizes a three-dimensional visualization engine to perform three-dimensional scene modeling, including three-dimensional real scenes of an airport area, main traffic roads, an overhead structure and buildings, three-dimensional real scenes of taxi stations, a buffer area and a taxi storage yard, three-dimensional scenes of indoor and outdoor buildings and internal traffic main lanes of a social vehicle parking lot, and real scenes of outdoor driving areas, traffic main lanes and exit gates of a departure layer of a station building; the method has the advantages that the data display of the three-dimensional scene is realized, important data such as early warning, production operation indexes and threshold values are displayed, the spatial analysis of the three-dimensional scene is realized, and the data analysis such as distance calculation is completed.

The invention has the following beneficial effects:

1) through geographic information data interaction, the requirement of more direct and efficient management is met. On the basis of meeting the establishment of data analysis architectures facing different objects and different management models, the visualized real-time visual three-dimensional management platform is developed, so that the efficiency of cooperative management can be more effectively realized. The visual management model architecture is most suitable for commanding of all door systems, and is an effective means for improving field emergency disposal and cooperative management.

2) Through a visual data analysis system and a perfecting and supplementing construction data acquisition system, production operation information of each link is mastered, and operation control processing and decision-making capacity is improved. Based on the existing informatization and data construction results and the establishment of a new data intelligent acquisition system, and aiming at multi-source easily-constructed mass data, the functions of graphical information query, visual association analysis, information deep mining and the like are realized through the technologies of data processing, storage management, visual interaction analysis and the like. The platform aims to combine human thought with computer operation ability by human insight and create a data intelligent decision platform for decision makers through visual and interactive means.

3) A more reasonable and accurate cooperative processing scheme is provided for land side traffic resource allocation and operation guarantee through a visual data analysis system. On the basis of meeting the establishment of data analysis architectures facing different objects and different management models, the field operation condition is fed back more directly, the field coping and disposal reaction time is prolonged through the analysis and judgment of space dimensionality and data integration, and the guarantee capability is enhanced.

Drawings

FIG. 1 is a diagram of the connection of the system of the present invention;

FIG. 2 is a topological diagram of the system of the present invention;

FIG. 3 is a diagram of the business architecture of the system of the present invention;

FIG. 4 is an infrastructure layer of the system of the present invention, the Internet of things

FIG. 5 is a system diagram of sub-modules of application management

FIG. 6 is an application support layer-data middleware

FIG. 7 is a diagram of a middleware system topology framework

FIG. 8 is an application data layer

FIG. 9 is a presentation layer-three dimensional visualization engine

Detailed Description

The technical solution in the embodiment of the present invention will be clearly and completely described below by taking an airport in east china as an example and by referring to the drawings in the embodiment of the present invention, and it is obvious that the described embodiment is only a part of the embodiment of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to the attached drawings 1-3, which are respectively a connection relation graph, a topological graph and a business architecture graph of the system, the platform aims to combine human ideas with the computing capability of a computer by utilizing human insights and create a data intelligent decision platform for decision makers through visual and interactive means. By processing professional data, the function with the professional characteristics is shown in the three-dimensional visual operation control system, so that the problems of multi-dimensional, multi-level and visual analysis and processing operation guarantee and management of the airport hub are solved. The three figures clearly express the relationship among the system modules of the invention and are not repeated in text.

Referring to fig. 3-9, the service architecture of the system includes a technical domain, an information domain, a visualization domain and an interaction domain, wherein the technical domain includes:

1. base layer-internet of things layer. The foundation layer construction is a foundation guarantee constructed by projects, covers systematic networks and supporting measures such as data acquisition and safety measures, and provides a good data support foundation for an application system of traffic operation control guarantee through perfect foundation network construction.

2. And applying a management layer. The application management layer effectively accepts the classification standard of the original traffic hub land-side management application system, and divides the actual application system into a plurality of application systems. In the construction of an actual application system, an effective multidimensional application resource classification method is realized on the basis of comprehensively bearing the original application classification standard specification, and moreover, the whole application system can also carry out related operation management through a multidimensional management mode, such as division of the application system according to services, including labor management, insurance management and the like. The application management layer is a construction layer of an actual application system, effective integration of the application management layer related application system is realized through establishment of an application support layer related integration mechanism, management efficiency of the application system is comprehensively improved through a unified management system, and service quality is improved.

3. A support layer-data middleware is applied. And optimally combining different types of data according to business relations by utilizing development data middleware to form visual application data support. The data middleware system includes scheduling and storing structured data and unstructured data. The structured data includes: XML and DBMS. Unstructured data includes: the WebService modular component is supported on a data interface by a 3D file, an audio/video file, a graphic image file, other format files such as ZIP, PDF and Unity 3D.

4. And applying a data layer. The application data layer is the guarantee of the service operation of the whole project and is the key for realizing the visual operation control system. Dividing the service system into basic structural resources and non-structural resources from the whole structure, and effectively managing and maintaining the non-structural services through a basic service management platform so as to allow users to effectively inquire and browse the non-structural services; for each type of data, effective classification is carried out, and the classification specifically comprises a 3D space, traffic flow resources, operation resources, business process management, an analysis decision resource library, an internal management resource library and a public service resource library. Through effective classification of the service resource library, perfect metadata management specifications are established, and therefore a resource sharing mechanism is reasonably and effectively achieved. The method supports the access of data of types such as pictures, videos, 3D files, audios, PDFs and the like, fuses the data of the types into an interface, and the interface supports high-concurrency docking. For the key data, encryption processing is supported, the encryption technology adopts the encryption technologies of MD5, Crype, Sha1 encryption, URL encryption, Base64 information coding encryption, and the like, and a proper encryption technology is selected according to the actual application scene.

Communication mode supported by data fusion: and the http, TCPIP and MQ communication protocols support and communicate the multi-type data fusion. Supporting memory data: the memory database is established by improving the data query efficiency, and the real-time data is loaded into the memory, so that the data query efficiency is greatly improved, and the corresponding requirements are met.

5. Presentation layer-three-dimensional visualization engine. The 3D data visualization engine refers to some core components which are written and used for editing and making computer television games or interactive real-time image application programs. Like the role of class libraries in software development, the integrated system provides various basic modules and development tools required by writing programs for game software developers, so that the program developers can more simply, quickly and efficiently make game programs without starting from the bottom.

With the rapid progress of the software and hardware engineering industries, 3D simulation scenes are more and more real. The appearance of various light rays, shadows and physical algorithms makes software more and more realistic and larger and more complex. More complex functions are more difficult to implement, and developers may face various architectural limitations, logic conflicts, and spend a great deal of time adjusting the performance-to-performance ratio of programs. The advent of 3D data visualization engines has just freed developers from these tedious tasks, providing them with sophisticated solutions, predictable performance overhead and implementation, complete functionality and good scalability. By using a mature 3D data visualization engine, a large amount of project time and development budget can be saved for a user, the product quality does not need to be reduced, and the risk of the project can be greatly reduced.

The engine will typically include functional modules for rendering, real-time physics, collision detection, three-dimensional animation, sound effects, scripting engine, computer animation, artificial intelligence, network and scene management, etc. However, only a single or few functional modules are provided by the engine, and other engines or plug-ins are required to be integrated to develop a complete project.

The Unity3D is used as a development tool of projects and is used as a visualization engine of a three-dimensional visualization operation control platform. Unity is similar to software that takes interactive graphical development environments as the first place, such as Director, Blender, Virtools, or Torque Game Builder. The editor can run under Windows, Linux (currently only Ubuntu and Centos versions are supported), Mac OS X, and can publish games to Windows, Mac, Wii, iPhone, WebGL (HTML 5 is needed), Windows phone 8 and Android platforms. And the Unity web player plug-in can also be used for releasing a web game and supporting the web browsing of Mac and Windows. Its web player is also supported by Mac.

The information domain realizes two functions, namely operation support and decision support, and simulation and real-time monitoring. The operation support and the decision support are support systems for managing and researching various service guarantees so as to establish standard operation monitoring, operation guarantees and emergency disposal for various operation management. Simulating and monitoring in real time, and establishing and perfecting various data acquisition systems including video and Internet of things data collection systems. For example: the method comprises the steps of relevant production operation indexes, and truly and accurately displaying operation information of each management area, wherein the operation information comprises congestion data and indexes of an entrance and an exit of a parking building, parking building warehouse position information, real-time data of the current day when taxis of a social parking building illegally enter, real-time buffer area inventory vehicle information, real-time buffer area entrance and exit flow real-time information, real-time buffer area short-distance vehicle data information, real-time buffer area scheduling request data, taxi scheduling on-the-road data, real-time taxi storage yard inventory, real-time taxi storage yard entrance and exit flow real-time information, taxi station passenger flow queuing real-time data, taxi station vehicle dispatching efficiency real-time information, total daily landing flight information, real-time single-hour landing flight data and real-time single-hour taxi station predicted use data; passenger flow collection and statistics, wherein a passenger flow collection system for passengers arriving in an airport jurisdiction and a related business area is established, and passenger flow statistical data information of each area and node is obtained in real time; the fixed point video is accessed, the RSTP protocol is used for visual browsing, the video acquisition and analysis system is developed, and the application program calls the SDK delivered by the VM to realize the Web Server.

Visualization and interaction domains. The construction of the three-dimensional platform is based on topographic data, high-resolution digital ortho-image data and various geographic data, a GIS technology, a graphic image processing technology, a three-dimensional rapid modeling and simulation technology and a database technology are fully utilized, and a two-dimensional and three-dimensional integrated three-dimensional geographic information system with two-dimensional geographic information query analysis, three-dimensional real-time browsing, three-dimensional real-time editing, three-dimensional space analysis, two-dimensional and three-dimensional synchronous interactive browsing and query and multi-source mass data management functions is established so as to meet the requirements of assisting city planning design and approval and planning business management.

The three-dimensional scene visualization is realized, the three-dimensional scene of the land side traffic management and guarantee area related to the airport hub is realized, and the land side related areas such as traffic lines, stations, parking lots, bus stations, subways, magnetic levitation and the like related to the land side traffic are displayed through 3D modeling.

The production index is visualized on a three-dimensional scene. The production indexes needing to be visualized on the three-dimensional scene mainly comprise: detailed production indexes such as parking building inventory and congestion indexes, flow and scheduling indexes of a buffer area, inventory, flow, efficiency and scheduling indexes of a storage yard, flight real-time information, flow indexes of bus and coach subway magnetic suspension and the like.

And realizing fusion display of the multi-type data on three-dimensional visualization. The current land side traffic related information and data are rich in data types, and comprise characters, graphs, images, audios, videos, flow data, tables, charts, WEB pages and the like, so that corresponding display is realized in a three-dimensional visual scene according to different types of data.

Interactive events can be implemented in a three place visualization scenario. In the three-dimensional scene reality, corresponding regions or nodes can be interacted through actions of clicking and the like of a user, for example, various interaction actions such as acquiring detailed data and playing videos are performed.

And data interaction and two-dimensional three-dimensional data linkage of the geographic information system. The three-dimensional visualization management platform not only can display a three-dimensional visualization scene, but also can perform data interaction with a two-dimensional geographic information system, and realizes data linkage of the three-dimensional visualization scene and a two-dimensional map

The historical, present and future hyper-spatiotemporal illusion is accomplished by temporal changes. By adjusting and changing the time, the current real scene can be displayed on a three-dimensional visual management platform, the historical scene can be backtracked, and the future phantom can be simulated according to the prediction of the data.

The accessed big data can be analyzed and displayed on the whole three-dimensional visualization platform. Big data from different sources can be processed simultaneously on a three-dimensional visualization platform for analysis and smooth display on a three-dimensional visualization scene is realized.

And accessing and using the Internet of things and an artificial intelligence technology. The device and the technology of a passenger flow acquisition network high-definition super-star camera, an artificial intelligent image processing platform server and the like are used for providing data acquisition and artificial intelligent image processing for a three-dimensional visualization platform.

The capacity of the Pudong airport aims to meet the classification requirements of different traffic as much as possible on the basis that each person who goes out can reach the destination. However, imbalance between capacity and demand of each vehicle causes peak value differences among various types of vehicles, and the demand deployment problem between different peak values needs to be studied. The dynamic relationship, peaked contradiction, between capacity and demand of each vehicle is a major issue for traffic organization and management optimization. And integrating the data of all system modules, analyzing the operation capacity of the whole airport, and feeding back the operation state, operation and maintenance state and operation efficiency of the whole land side traffic organization in real time.

The three-dimensional scene modeling and displaying module of the administration area of the Pudong International airport traffic guarantee department:

1. establishing three-dimensional real scene of airport area, main traffic road, overhead and building

The cad + gis is adopted to collect the original data, and the original data acquisition mode (field collection, historical data arrangement and shooting processing) can also be used for analyzing and processing according to the engineering data such as fire control drawings, BIM and the like provided by Party A. The method realizes 1:1 modeling after the acquisition of the original data of the airport, and restores the information of the airport and the buildings and roads of 2.5 kilometers around the airport with high simulation degree. Modeling tools 3dsmax, sketchup, core development tool Unity 3D. And reading data through the multi-type data fusion module, and displaying work alarm information and tracking information after data analysis.

2. Establishing three-dimensional real scene of taxi station, buffer area and taxi storage yard

And acquiring a field environment through field investigation, photographing and video shooting, and then modeling a three-dimensional real scene of a taxi station, a buffer area and a taxi storage yard by cad or bim data. (modeling tools 3dsmax, sketchup, core development tool Unity3D)

3. Three-dimensional scene for building indoor and outdoor buildings and internal traffic main roads of P1P2 social vehicle parking lot

The method comprises the steps of obtaining the field environment through field investigation, photographing and video shooting, and then adopting cad or bim data to carry out three-dimensional scene modeling of indoor and outdoor buildings and internal traffic main roads of the P1P2 social vehicle parking lot. Modeling tools 3dsmax, sketchup, development tool Unity 3D.

4. And establishing a real scene of an outdoor driving area scene, a traffic trunk and an exit door of a T1T2 terminal building departure floor.

The method comprises the steps of obtaining a field environment through field investigation, photographing and video shooting, and then modeling real scenes of outdoor driving area scenes, traffic main roads and exit doors of a T1T2 terminal building departure floor by cad or bim data.

5. The three-dimensional scene data display is realized, and important data such as early warning, production operation indexes, threshold values and the like are displayed;

data such as early warning, production operation indexes and threshold values are read through the multi-type data fusion platform to bind and call objects in the three-dimensional interface, three-dimensional information transmission is presented in a three-dimensional visualization mode in real time, and a user can browse according to the three-dimensional presented information.

6. And the spatial analysis of the three-dimensional scene is realized, and the data analysis basis such as distance calculation is completed.

A large number of three-dimensional models need to be realized in the system, and parking buildings, taxi stations, airport entrance lanes, departure roads, viaducts and terminal buildings need to be subjected to fine modeling. The whole effect of the system is vivid, so that people who do not arrive at the scene have the feeling of being personally on the scene. The storage yard, buffers, and other areas are modeled schematically.

By utilizing high-resolution remote sensing images, aerial pictures, DEM data, vector data, CAD data and the like, real three-dimensional ground and underground scenes are quickly constructed through a certain three-dimensional modeling technology and a certain three-dimensional display method, different scenes, structural layouts and important facilities along the rail transit can be browsed in real time at any angle, and a real three-dimensional space environment is provided. And providing an important information display function in the three-dimensional scene.

Scene loading: in addition to directly switching scenes, the 3D data visualization engine may provide real-time loading and preloading of scenes to present a large virtual scene. Asynchronous loading may also be implemented for situations where reads are slow.

Adopt Unity3D to realize asset management of asset3D object, realize asynchronous loading technique to make the scene model load fast. Asset3d splits a large 3d object into multiple sub-objects, and stores the sub-objects in a server side in a http-supported file manner, and then transmits the sub-objects through http to realize high-performance scene transmission and loading.

The height map resolution of the default terrain maximum support 4086x4086x32 is automatically optimized. Seamless connection can be realized among a plurality of terrains to form a larger scene. Terrain generation can be directly drawn by art, height map files read, generated by a generation program, read by scripts, and transformed by models made by other three-dimensional software. The terrain can be exported into a model file or directly exported into a height map through a script, and creation and processing are facilitated. The texture and data on the terrain can be used for performing export and write operations by a script and supporting real-time modification in the running state of the program. The Unity3D engine supports height map generation of 3D terrain by default, responding to the above requirements. The scene illumination is adjusted by setting the ambient light and a parallel light. Details can be enhanced by Lightmap for objects in the terrain and scene.

And (5) optimizing the scene. The 3D data visualization engine provides a detail map and automatically generates a Minmap. And setting self-defined static and dynamic batch processing, shielding elimination and other methods to realize optimization of scene rendering. The unity3D engine supports dynamic compression batching techniques internally and Occlusion Culling. An Occlusion Culling (Occlusion Culling) function may disable object rendering when an object is currently not visible in the camera due to Occlusion by other objects. This function does not automatically turn on in three-dimensional computer graphics because in most cases, the object furthest away from the camera is rendered first and the object closer to the camera is overlaid on the previous object (this step is called "iterative rendering"). Occlusion Culling (Occlusion Culling) is different from cone Culling (Frustum Culling). Frustum Culling (Frustum Culling) disables rendering of objects only outside the field of view of the camera, and does not disable rendering of any objects occluded in the field of view. Note that the use of Occlusion Culling (Occlusion Culling) functionality would still benefit from cone Culling (Frustum Culling).

Animation control, segmentation animation and animation editor. The animation produced by the three-dimensional software can be played, the produced animation data can be segmented in the engine, and the animation editor is used for producing, modifying and setting the trigger event.

The animation segmentation of the 3D object is supported, and the introduced fbx, obj deformation animation and skeleton animation can be sufficiently supported. Supporting an animation editor, supporting events triggered by modifying an animation.

Animation is integrated with physical systems. The physical system can be used for driving role animation, and the animation simulating the real collision effect is realized. The real-time status presentation of the status of the field device and the asset is supported, and the physical status attribute of the object is fed back really.

The animation is corrected or driven by the script, and personalized embodiment which cannot be realized by presetting the animation can be achieved by calculating the animation in real time. For example, the walking position of the character is highly attached to the ground. According to nonlinear distortion possibly existing in 3D modeling, high fit of the object and the 3D environment is achieved through a code writing compensation function. And supports animated object components.

The 3D data visualization engine allows a user to generate and modify a model by using codes, so that the functions of displaying physical damage operation in real time, generating the model according to data and the like are realized. The engine can carry out the state of the equipment and the assets according to the code edited by the user and even the imported parameters, for example, the damage degree can be visually shown when the equipment at a certain monitoring point has a problem.

Aiming at the characteristic that a Web end and a mobile platform need to download and read scenes rapidly, resources needing to be called when the scenes are opened can be saved by using a dynamic loading technology and loading is carried out when the scenes are actually used. Asynchronous loading can also be achieved for large resources. And (3) carrying out object segmentation on the ultra-large scene (a large file is cut into a plurality of small files), generating an asset file at a server side, and asynchronously transmitting the asset file to a client side (C/S and B/S). And then transmitting the cut small files to clients (C/S and B/S) through http or socket.

The video with various common formats can be played, and the video can be pasted on the model as a material, so that the dynamic model appearance effect is realized. The local play support format supports the-mov,. mpg,. mpeg,. mp4,. avi,. asf file format, and the remote is the RSTP format. Plug-ins developed with C + +, Java, Object C are supported.

And a data forecasting and early warning module. Displaying early warning and alarming contents on a three-dimensional visual three-dimensional scene, and displaying emergency command disposal plans, wherein the system can display disposal plan information of each intelligent department; the treatment plan can be opened, edited and stored; the flexible real-time interaction modification can be carried out according to the requirement; the merging of treatment plans can be completed; meanwhile, the plan file can be opened in the three-dimensional scene, and all relevant information is displayed in the scene.

In summary, the land side traffic management of the present invention can present multiple data and multiple systems facing different management objects and different management requirements on the same interface and screen. The problem is actively identified and found by a computer system instead of being identified by experience through a video, and then auxiliary judgment is carried out through images, so that management and decision making are thoroughly subverted. The invention reduces the difficulty of image reading and artificial space analysis in a two-dimensional plane state by an intelligent three-dimensional visualization technical means, the system completes 3D scene modeling, space-time presentation and geographic information display of all the jurisdiction areas of the airport traffic control department, and meanwhile, the new system covers the original digital operation control system and integrates all traffic information and passenger flow information systems in a compatible manner. Meanwhile, the system is in butt joint with a video monitoring system, and video images of key areas can be retrieved in real time in the system. And comprehensively analyzing and processing the data, and establishing a corresponding logic operation model system facing different requirements and objects.

The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are only exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims (8)

1. A roadside traffic visualization three-dimensional operation and control system comprises a technical domain, an information domain, a visualization domain and an interaction domain, and is characterized in that the technical domain comprises an infrastructure layer, an application layer and a display layer;

the infrastructure layer is an internet of things layer and comprises intelligent equipment, a server, communication and network security, image acquisition, a sensor and a private cloud;

the application layer comprises an application management layer, an application support layer and an application data layer; the application management layer is a sub-module system and divides an actual application system into a plurality of application systems; the application support layer is a data middleware system, and different types of data are optimally combined according to business relations to form visual application data support; the application data layer realizes multi-data fusion, including multi-type data fusion, multi-source data fusion, big data display fusion and cross-space-time data fusion.

The presentation layer utilizes Unity3D as a three-dimensional visualization engine.

2. The roadside traffic visualization three-dimensional operation and control system according to claim 1, wherein the sub-module system of the application management layer comprises taxi management and operation support, bus management and information distribution, passenger flow collection, flight arrival data module, road traffic flow collection and monitoring, video monitoring, network and safe operation monitoring, external data exchange, emergency support and disposal, and personnel management.

3. The roadside traffic visualization three-dimensional operation control system according to claim 1, wherein the data middleware system schedules and stores structured data and unstructured data.

4. The roadside traffic visualization three-dimensional operation control system according to claim 1, wherein the structured data comprises XML and DBMS, and the unstructured data comprises 3D files, audio-video files, graphic image files, and ZIP, PDF, Unity 3D.

5. The roadside traffic visualization three-dimensional operation control system according to claim 1, wherein multiple data are fused into one interface, high concurrency docking is supported, and access to data such as pictures, videos, 3D files, audios and PDFs is supported.

6. The roadside traffic visualization three-dimensional operation control system according to claim 5, wherein the core data is encrypted, and an appropriate encryption technology such as MD5, Crype, Sha1 encryption, URL encryption and Base64 information encoding encryption is selected according to an application scene.

7. The roadside traffic visualization three-dimensional operation control system according to claim 5, wherein the communication mode supported by the multi-data fusion is http, TCPIP, MQ communication protocol.

8. The roadside traffic visualization three-dimensional operation and control system as claimed in claim 1, wherein the display layer utilizes a three-dimensional visualization engine to perform three-dimensional scene modeling, including establishing three-dimensional real scenes of an airport area and main traffic roads, an overhead, a building, three-dimensional real scenes of taxi stations, buffer areas, a taxi storage yard, three-dimensional real scenes of indoor and outdoor buildings of a social vehicle parking lot, a three-dimensional scene of an internal traffic trunk, a scene of an outdoor driving area of a departure layer of a station building, a traffic trunk, and a real scene of an exit gate; the method has the advantages that the data display of the three-dimensional scene is realized, important data such as early warning, production operation indexes and threshold values are displayed, the spatial analysis of the three-dimensional scene is realized, and the data analysis such as distance calculation is completed.

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