Road electromechanical equipment digital model construction method

Abstract

The application discloses a kind of road electromechanical equipment digital model construction methods, the method is by adopting component mode to construct and deploy road electromechanical equipment digital model, and by bottom communication protocol, realize electromechanical equipment virtual digital model and corresponding real physical entity Data communication interaction, so that virtual scene and real scene in road electromechanical equipment form parallel mapping and virtual-real interaction;Meanwhile, it is also possible to update and virtual scene rendering effect synchronous update by digital device model state, so that virtual scene and digital device model form field-object linkage.The application realizes virtual-real interaction and field-object linkage by the construction of road electromechanical equipment digital model, and can provide basic support for road electromechanical equipment digital control and road operation control based on digital twinning.

Description

TECHNICAL FIELD

[0001] The present application relates to a road electromechanical equipment digital model construction method. BACKGROUND

[0002] Decomposing traffic infrastructure elements, it can be known that electromechanical equipment is one of the key elements. And analyzing the digital demand of electromechanical equipment, it can be known that for the purpose of digital twin traffic control, electromechanical equipment needs to be virtually interactive and scenario rendering synchronous modeling, that is, it needs to realize the data linkage between electromechanical equipment digital model and electromechanical equipment physical model, so as to realize the data driving of digital model to physical model; At the same time, realize the synchronization of digital scene rendering and equipment state updating.

[0003] At present, the application of digital twin in road traffic industry is mainly in the stage of real scene visualization, accordingly, the road infrastructure digital model construction technology pays more attention to the aspect of realistic reproduction, and pays less attention to the logical reconstruction of the model, lacks the road electromechanical equipment digital model construction method with virtual-real interaction function, resulting in that many road electromechanical equipment digital models lack data linkage function and cannot meet the functional requirements of digital driving operation and control; In addition, there is also a lack of interaction between scene rendering and equipment model state updating, such as lighting lamps and lanterns. When different power lamps are turned on in the virtual scene, different light rendering effects cannot be obtained, so that the influence of lighting lamps and lanterns on traffic cannot be verified. SUMMARY

[0004] The purpose of the present application is a road electromechanical equipment digital model construction method to solve the problem that the existing road electromechanical equipment digital model cannot be reconstructed and lacks virtual-real interaction function.

[0005] To solve the above technical problems, the present application provides a road electromechanical equipment digital model construction method, which comprises the following steps:

[0006] S1: information collection: collecting road electromechanical equipment image information, according to the electromechanical equipment parameters in the road electromechanical equipment image information, combining with the use demand, analyzing and extracting the static characteristic state and dynamic characteristic state of the electromechanical equipment digital model, and distinguishing the static characteristic data and dynamic characteristic data by digital coding;

[0007] S2: constructing road electromechanical equipment model: according to the static characteristic data in the road electromechanical equipment design drawing, combining with the appearance of the real object, carrying out road electromechanical equipment digital modeling, and completing model mapping according to the material quality of the real object, forming road electromechanical equipment model;

[0008] S3: interface protocol adaptation: according to the dynamic characteristic data of electromechanical equipment, interface protocol matching is carried out in the road electromechanical equipment protocol library;

[0009] S4: Model configuration and installation: component-based configuration of road electromechanical equipment models; digital scene loading model configuration data to load, render and state acquisition of road electromechanical equipment models in the scene;

[0010] S5: Road electromechanical equipment data model virtual-real interaction operation: select a device model, select and issue control commands, then call to get the information of the selected model and the specific control commands issued, and control the real world road electromechanical equipment through the communication interface;

[0011] S6: Model state update: According to the interface, divide the active acquisition of device state data and passive reception of device state data according to different protocol specification methods, obtain the real-time state data of the device through the function interface, and decode the state data. Then, according to the decoding information, update the state of the road electromechanical equipment model in the digital scene;

[0012] S7: Virtual scene synchronous rendering: When the data model of the road electromechanical equipment associated with the digital scene display effect is updated, the digital scene rendering is updated synchronously.

[0013] Further, the road electromechanical equipment includes monitoring equipment, communication equipment, toll equipment, tunnel lighting equipment, tunnel ventilation equipment and tunnel fire-fighting equipment.

[0014] Further, the electromechanical equipment parameters in the road electromechanical equipment design drawing include: equipment attributes and equipment parameters; the equipment attributes include the external structure, size and color of the equipment; and the equipment parameters include the function data and performance parameters of the equipment.

[0015] Further, in step S3, when matching the interface protocol in the road electromechanical equipment protocol library, if the interface protocol of the equipment already exists in the protocol library, the equipment and the digital scene are directly connected through configuration; if the interface protocol of the equipment does not exist in the protocol library, the corresponding development and equipment debugging are performed according to the protocol content provided by the equipment manufacturer, and the completed interface protocol is registered into the equipment protocol library.

[0016] Further, the component-based configuration of the road electromechanical equipment model in step S4 includes configuring the file path, position, orientation and state of the road electromechanical equipment model.

[0017] Further, in step S4, the loading and rendering of the device digital model are performed through FObjectFinder and SetSkeletalMesh interfaces; the state acquisition of the model is achieved through GetActorLocation and GetActorRotation interfaces; and the state updating of the road electromechanical equipment model in the digital scene is performed through SetActorLocation and SetActorRotation.

[0018] The present application has the advantages that: the digital model of road electromechanical equipment is quickly deployed in a component mode, and the data communication interaction between the virtual digital model of electromechanical equipment and the corresponding real physical entity is realized through a bottom communication protocol, so that the road electromechanical equipment in the virtual scene and the real scene forms parallel mapping and virtual-real interaction; meanwhile, the virtual scene and the digital equipment model form scene-object linkage through the updating of the state of the digital equipment model and the synchronous updating of the rendering effect of the virtual scene; and the present application realizes virtual-real interaction and scene-object linkage through the construction of the digital model of road electromechanical equipment, and can provide basic support for digital control of road electromechanical equipment and road operation management and control based on digital twinning. BRIEF DESCRIPTION OF DRAWINGS

[0019] The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiments of the application and together with the description serve to explain the application. In the drawings, the same reference numerals are used throughout the several views of the drawings and identical or similar elements are numbered alike in several views of the drawings. The illustrative embodiments of the application and their description serve to explain the application. They do not, however, limit the application, which is defined only by the appended claims.

[0020] Figure 1 The flow chart of an embodiment of the present application;

[0021] Figure 2 The schematic diagram of the system architecture of the digital model of road electromechanical equipment;

[0022] Figure 3 The prototype diagram of the operation interface of the digital model of road electromechanical equipment. DETAILED DESCRIPTION

[0023] As shown in the method for constructing the digital model of road electromechanical equipment, the method comprises: Figure 1

[0024] S1: information collection: collecting image information of road electromechanical equipment, according to the parameters of electromechanical equipment in the image information of road electromechanical equipment, combining with the use demand, analyzing and extracting the static characteristic state and the dynamic characteristic state of the digital model of electromechanical equipment, and distinguishing the static characteristic data and the dynamic characteristic data by digital coding;

[0025] ​S2: Constructing a road electromechanical equipment model: according to the static characteristic data in the road electromechanical equipment design drawing, combining the appearance of the real object, digital modeling of the road electromechanical equipment is carried out, and model mapping is completed according to the material of the real object, forming a road electromechanical equipment model;

[0026] S3: Interface protocol adaptation: according to the dynamic characteristic data of the electromechanical equipment, interface protocol matching is carried out in the road electromechanical equipment protocol library;

[0027] S4: Model configuration and installation: component-based configuration of the road electromechanical equipment model; the digital scene loads the configuration data of the model to load, render and obtain the state of the road electromechanical equipment model in the scene; S5: Virtual-real interaction operation of road electromechanical equipment data model: select a certain device model, select and issue control commands, then call back (function callback can be realized by Dynamic Multi-cast Delegates) to obtain the information of the selected model and the specific control command issued, package and encrypt the command through the communication protocol interface matched with the device, and realize data interaction with the real electromechanical equipment through the network, to achieve real-time control of the road electromechanical equipment in the real world;

[0028] S6: Model state update: according to the interface, the active acquisition of device state data and the passive reception of device state data are divided according to different protocol specification methods, the real-time state data of the device is obtained through the function interface, and the state data is decoded, then the state of the road electromechanical equipment model in the digital scene is updated according to the decoding information;

[0029] S7: Virtual scene synchronous rendering: when the data model of the road electromechanical equipment associated with the display effect of the digital scene is updated, the digital scene rendering is updated synchronously.

[0030] The following will describe each step in detail:

[0031] In the above step S1, the road electromechanical equipment includes monitoring equipment, communication equipment, toll equipment, tunnel lighting equipment, tunnel ventilation equipment, tunnel fire-fighting equipment, etc. The road electromechanical equipment image information includes road electromechanical equipment design drawings or / and road electromechanical equipment real object images, and the corresponding electromechanical equipment parameter description data should be indicated in the road electromechanical equipment image; the electromechanical equipment parameter description data in the road electromechanical equipment design drawing includes: equipment attribute and equipment parameter; the equipment attribute includes the external structure, size, color, etc. of the equipment; the equipment parameter includes the main function data and key performance parameter of the equipment.

[0032] In the step S2, when constructing the road electromechanical equipment model: according to the static feature data (such as external structure, size, color, etc.) in the road electromechanical equipment image information, combining the appearance of the real object, using mainstream modeling software such as 3D MAX to carry out digital modeling of the road electromechanical equipment, and completing model mapping according to the material of the real object to form a road electromechanical equipment model, and finally forming a digital model file in the mainstream format of obj or fbx.

[0033] In the step S3, the dynamic feature data includes main function data and key performance parameters of the electromechanical equipment, and the corresponding data can usually be obtained according to the manufacturer and equipment model of the electromechanical equipment; when matching the interface protocol in the road electromechanical equipment protocol library, if the interface protocol of the equipment already exists in the protocol library, the equipment and the digital scene are directly connected through configuration; if the interface protocol of the equipment does not exist in the protocol library, the corresponding development and equipment debugging are carried out according to the protocol content provided by the equipment manufacturer, and the completed interface protocol is registered into the equipment protocol library.

[0034] In the step S4, the component configuration of the road electromechanical equipment model includes the file path (disk path of the model file) of the road electromechanical equipment model, the position (road stake number or GPS coordinate), the orientation (angle and direction), the state (working state) and the like. The digital scene loads the configuration data of the model, and in the scene, the loading and rendering of the digital model of the equipment are carried out through API interface functions such as FObjectFinder and SetSkeletalMesh, and the state acquisition of the model is realized through API interfaces such as GetActorLocation and GetActorRotation.

[0035] When the state of the road electromechanical equipment data model is updated in real time, the device state data is actively acquired and passively received according to different protocol provisions. The real-time state data of the equipment is obtained through the function interface, decoded according to the corresponding equipment communication protocol, and then the state of the road electromechanical equipment model in the digital scene is updated by using API interfaces such as SetActorLocation and SetActorRotation according to the data content.

[0036] When the data model of the road electromechanical equipment (such as a lighting lamp, a ventilation fan, etc.) associated with the display of the digital scene is updated, the digital scene rendering is synchronously updated; when the tunnel lighting lamp is taken as an example, when the power data of the lamp is changed, the brightness of the tunnel digital scene should be synchronously re-rendered.

[0037] The application can be applied to construction of a road and urban road traffic twin, quickly deploys a road electromechanical equipment digital model in a component mode, and realizes data communication interaction of the electromechanical equipment in a virtual scene and a real scene through a bottom communication protocol, so that the road electromechanical equipment in the virtual scene and the real scene forms parallel mapping and virtual-real interaction; meanwhile, linkage of the virtual scene and the digital equipment model can also be realized, so that the virtual scene rendering effect and the digital equipment model state are synchronously updated, thereby supporting the digital twin traffic body to gradually develop from visual to measurable, controllable, optimal and other application stages, and promoting deep integration of the digital twin technology and operation control.

[0038] Finally, it should be pointed out that the above embodiments are only used to illustrate the technical solutions of the present application but not limit the present application. Although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced equivalently without departing from the purpose and scope of the present application, and all should be covered in the scope of the claims of the present application.

Claims

1. A method for constructing a digital model of road electromechanical equipment, characterized in that, Including the following steps: S1: Information Acquisition: Acquire image information of road electromechanical equipment; based on the electromechanical equipment parameters in the image information and combined with usage requirements, analyze and extract the static and dynamic feature states of the digital model of the electromechanical equipment, and use digital coding to distinguish them to obtain static feature data and dynamic feature data; The electromechanical equipment parameters include: equipment attributes and equipment parameters; the equipment attributes include the equipment's external structure, dimensions, and color; the equipment parameters include the equipment's functional data and performance parameters; S2: Construct a road electromechanical equipment model: Based on the static feature data in the road electromechanical equipment design drawings and the physical appearance, digitally model the road electromechanical equipment, and complete the model texture according to the physical material to form a road electromechanical equipment model; S3: Interface Protocol Adaptation: Based on the dynamic characteristic data of electromechanical equipment, interface protocols are matched in the road electromechanical equipment protocol library; S4: Model Configuration and Installation: Component-based configuration of the road electromechanical equipment model, including configuring the file path, location, orientation, and status of the road electromechanical equipment model; The digital scene loads the model's configuration data and loads, renders, and acquires the status of the road electromechanical equipment model within the scene; S5: Virtual-Real Interaction Operation of Road Electromechanical Equipment Data Model: Select a certain equipment model, select and issue control commands, and then retrieve the information of the selected model and the specific control commands issued through the callback. Real-time control of road electromechanical equipment in the real world is achieved through the communication interface. S6: Model State Update: Based on the interface, the system actively acquires and passively receives device state data according to different protocol specifications. It obtains real-time device state data through function interfaces, decodes the state data, and then updates the state of the road electromechanical equipment model in the digital scene based on the decoded information. S7: Virtual Scene Synchronous Rendering: When the data model of road electromechanical equipment that is related to the display effect of the digital scene is updated, the digital scene rendering is updated synchronously.

2. The method for constructing a digital model of road electromechanical equipment according to claim 1, characterized in that, Road electromechanical equipment includes monitoring equipment, communication equipment, toll collection equipment, tunnel lighting equipment, tunnel ventilation equipment, and tunnel fire protection equipment.

3. The method for constructing a digital model of road electromechanical equipment according to claim 1, characterized in that, In step S3, when matching the interface protocol in the road electromechanical equipment protocol library, if the interface protocol of the device already exists in the protocol library, the device and the digital scene can be connected directly through configuration. If the interface protocol for the device is not found in the protocol library, then the corresponding development and device integration testing will be carried out according to the protocol content provided by the device manufacturer, and the completed interface protocol will be registered into the device protocol library.

4. The method for constructing a digital model of road electromechanical equipment according to claim 1, characterized in that, In step S4, the device digital model is loaded and rendered through the FObjectFinder and SetSkeletalMesh interfaces; the model state is obtained through the GetActorLocation and GetActorRotation interfaces; and the state of the road electromechanical equipment model in the digital scene is updated through SetActorLocation and SetActorRotation.

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