CN115659681A - A method for realizing the external interface of simulation software business logic - Google Patents

Abstract

The invention is suitable for the technical field of analog simulation software development, and provides a method for realizing an external interface of analog simulation software business logic. The invention not only realizes the comprehensive decoupling of the simulation judgment logic, improves the simulation depth of the virtual simulation system to the simulation object, but also greatly improves the expansibility of the simulation server and the operation efficiency of the simulation server.

Description

A method for realizing the external interface of simulation software business logic

technical field

The invention belongs to the technical field of simulation software development, and in particular relates to a method for realizing an external interface of business logic of simulation software.

Background technique

With the gradual development and popularization of VR, AR, 5G and other technologies, as well as the rapid development of the field of virtual simulation, the application of virtual simulation is becoming wider and wider. A large number of virtual simulation applications have emerged in the fields of education, industry, commerce and games. And with the development of software and hardware performance and network technology, the complexity, precision and performance of virtual simulation products have been significantly improved, showing a development trend of complexity and refinement.

However, the current virtual simulation technology generally implements its data model for specific simulation objects or scenarios. For example, for the virtual simulation of a ship operation, the main implementation method has the following steps: 1. Realize the I/O table of the complete operation of the ship; 2. Put the judgment conditions, trigger mechanism and processing results of each I/O operation in the code/ Algorithm-level reproduction; 3. Front-end software/hardware applications implement I/O operations. Therefore, the current simulation algorithm for the simulation object will reflect the characteristics of strong specialization, weak scalability, high cost and poor reusability. That is to say, each virtual simulation product must specifically realize all data models of the object, and its realization effect and virtual simulation depth are very dependent on the scale of its software project and development resources.

Traditional virtual simulation software is often based on the presentation layer, using the [business function-front-end interface] architecture, and simulating the internal functional logic of the simulation object through a large number of software programming. For simulation objects with relatively simple structure, few interactive functions, and shallow business levels, such as simple scene experience (common in construction, decoration and other industries), interactive operations (industry, game and other industries), such software architecture and its algorithm embody The software has the advantages of small volume and low development cost. However, when the simulation object is highly complex, traditional virtual simulation software has the following limitations: 1. Performance bottleneck: For the simulation of complex systems, especially for virtual simulation scenarios that support multi-user online, the simulation server must handle a large number of signals, State update requires maintaining high-performance network communication. Sometimes the update of a single state in a simulation object requires the processing of hundreds of different levels of logic. Especially in virtual simulation software, the performance requirements of the simulation server are very high in order to realize the operating system that includes the simulation object (such as the operating system of ships, vehicles, and complex power plants). 2. Difficulty in maintenance: Because the simulation object is highly complex, multi-level and complex state management including mechanical structure, electrical system, and operating software needs to be implemented. The business logic is inevitably highly coupled, resulting in high maintenance and upgrade costs. 3. Fixed functions: Traditional virtual simulation software often needs to deposit all the functions and business judgment logic of the project in the requirements analysis stage, and realize its internal state management logic through the code level of the simulation server. When it is necessary to upgrade and import newer simulation algorithms to the virtual simulation software, it is necessary to upgrade the code level of the entire virtual simulation software as a whole, and combined with the limitations of difficult maintenance, it is even more difficult to quickly upgrade and iterate the virtual simulation software once it is completed. situation. For example: the virtual simulation software version a developed for a large ship, when it is put into use, a certain equipment on this type of ship is replaced with a more advanced model, so that the mechanical performance of a certain aspect is improved. In this case, the virtual simulation software needs to be modified accordingly. Even if the software structure of version a is reasonable and the software engineering design is standard, the software body needs to be upgraded to version b to meet the new ship conditions.

Therefore, the traditional implementation method of business functions in virtual simulation software has high development costs, poor scalability, high degree of software coupling, simulation depth obviously affects the complexity of virtual simulation software, and there are bottlenecks in software performance and scale.

Contents of the invention

In view of the above problems, the purpose of the present invention is to provide a method for realizing the external interface of the simulation software business logic, aiming at solving the above technical problems.

The present invention adopts following technical scheme:

A method for realizing the external interface of simulation software business logic, including

Step S1, building and packaging the external interface engine;

Step S2, establishing a business data model and an external interface data model;

Step S3, edit and bind the script corresponding to the external interface by managing the external interface data model, and update the script content of the external interface in the external interface data model;

Step S4, loading the business data model to implement business data loading;

Step S5, check and call the corresponding external interface in the life cycle of the business data model to realize the secondary loading of the business data model;

Step S6, updating the parameters of the business data model and simulating through the simulator;

Step S7, based on the modeling and analysis of the physical structure of the complex system, call the corresponding interface during the update process of the business data model, return the result parameters and load them into the business data model to realize partial real-time update of the business data model;

Step S8, on the simulation server side, simulate the electrical or control system in the complex system, realize the external interaction function list of the simulation object, and realize the interaction between the control signal and the physical layer and the database.

Further, in the step S2, the business data model is used to realize the business data of the virtual simulation object, and the external interface data model is used to realize the execution authority, execution process and script content binding corresponding to the external interface in the virtual simulation software. Determine the logic, and calibrate the business data processing scope, processing flow and corresponding script content of the external interface.

Further, the specific process of step S4 is as follows: after starting the simulator, the simulator loads the initial business data of the simulator from the database, and generates an initialized business data model.

Further, in the step S8, the operation and status management functions of the complex system are realized by writing system status update and operating condition check in the simulation server.

The beneficial effect of the present invention is: the present invention adopts the front-end open interface, first builds the external interface business interception in the communication network communication protocol layer, then scripts the processing interface in the business processing function, defines it at the front end of the management background, and finally uses the external interface It is docked with the data model to realize the trusteeship of the data model by the external interface; the method of the invention realizes the "white box" working mode from the software development interface to the front-end interface, and the user can directly customize the business logic on the visual interface.

The present invention not only realizes the comprehensive decoupling of the simulation judgment logic, improves the simulation depth of the simulation object by the virtual simulation system, but also greatly improves the scalability of the simulation server and improves the operating efficiency of the simulation server. The closed mode is upgraded to an open mode that is open to the user interface, which greatly improves the customization and flexibility of virtual simulation services for user services.

Description of drawings

Fig. 1 is the flow chart of the method for implementing the external interface of the simulation software business logic provided by the embodiment of the present invention;

Fig. 2 is a structural block diagram of the implementation of the method in the embodiment of the present invention.

Detailed ways

In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

In order to illustrate the technical solutions of the present invention, specific examples are used below to illustrate.

As shown in Figures 1 and 2, the method for implementing the external interface of the simulation software business logic provided in this embodiment includes the following steps:

Step S1, constructing and encapsulating an external interface engine.

The external interface engine can intercept the front-end communication in the operating environment through the external interface, and use external scripts to take over the virtual simulation business logic. The external interface supports JavaScript scripts, Python scripts, and status tables.

The operating logic of the external interface engine is to implement business code data processing first, then host the external interface, and finally return the business code to realize the dynamic update of the data model.

Step S2, establishing a business data model and an external interface data model.

Data model includes business data model and external interface data model.

Among them, the business data model realizes the business data of the virtual simulation object, including the data of the physical state such as temperature, pressure, and motion relationship, as well as the data of the signal level such as the digital signal of the virtual simulation software. The external interface data model realizes the execution authority, execution process, and script content binding logic corresponding to the external interface in the virtual simulation software, and realizes the calibration of the business data processing range, processing flow, and corresponding script content of the external interface.

Step S3, edit and bind the script corresponding to the external interface by managing the external interface data model, and update the script content of the external interface in the external interface data model.

This step realizes the management of the external interface data model, and the virtual simulation software realizes the business processing logic inside the background software and the data processing flow of the external interface. When this step is actually implemented, the editing and binding functions of scripts corresponding to all external interfaces are implemented in the background visualized management interface, that is, the execution content and return format of all external interfaces are defined from the outside. And the script content of the external interface is updated in the content of the external interface data model of the database.

Step S4, loading the business data model to implement business data loading.

This step implements business data loading. Taking a virtual simulation software of a power plant as an example, after starting the simulator, the simulator loads the initial business data of the simulator from the database, such as complete business data parameter tables such as power-on status, oil volume, cooling water volume, hardware life, material characteristics, etc., and generates The initialized business data model exists as a persistent processing object in the background.

Step S5 , check and call the corresponding external interface in the life cycle of the business data model, so as to realize the secondary loading of the business data model.

During the initialization process of the business data model or after the initialization is completed, check and call the corresponding external interface in the life cycle of the business data model to realize the secondary loading of the initialization data model. For example, use external scripts (such as Matlab, C++) to generate random environmental parameters such as ambient temperature, cooling water temperature, cooling oil temperature, current motor status, etc., and directly update the business data model to realize dynamic loading of the simulated object data model.

Step S6, updating the parameters of the business data model and simulating through the simulator.

After the data loading is completed, for further business model parameters, such as dynamic parameters such as transfer, lubricating oil amount, fuel consumption, ignition timing, etc., and front-end operations such as starting up and shifting, the simulation is performed by the front-end of the simulator, and the dynamic data is transmitted to the rear end.

Step S7. Based on the modeling and analysis of the physical structure of the complex system, call the corresponding interface during the update process of the business data model, return the result parameters and load them into the business data model to realize partial real-time update of the business data model.

The business data is updated to the business data model, and the modeling and analysis of the physical structure of the complex system is carried out. The corresponding interface is called during the update process of the business data model. For example, after the business data model receives the front-end parameters, the external dynamics processing interface is called. The script running environment processes the updated rotational speed, ambient temperature and other data, and returns dynamic parameters such as the force state of each component, input/output power, etc., and also loads them into the business data model to realize partial real-time update of the business data model.

Step S8, on the simulation server side, simulate the electrical or control system in the complex system, realize the external interaction function list of the simulation object, and realize the interaction between the control signal and the physical layer and the database.

In this step, update the system status and check the operating conditions in the simulation server to realize the operation and status management functions of the complex system, including mechanical control, electrical control, hydraulic pipeline/hydraulic station and other control management functions in the complex system. That is, the external interface can monitor and intercept parameters in any life cycle of the business data model, and the processing includes PLC simulation and operation panel (realized by UI component scripts), so as to realize all-round expansion and decoupling of the entire simulator function.

To sum up, the external interface method of the simulation software business logic provided by the present invention realizes the simulation and reproduction of multi-layer data models and functional structures of complex systems, greatly improves the maintainability and expansibility of virtual simulation software, and significantly It greatly reduces the coupling and software scale of each part of the software, and improves code reusability. The peripheral interface of the product is compatible with mainstream development languages such as JavaScript, Java, C# and panel operations, and supports single-client and multi-client synchronous use. This enables the development of virtual simulation software to adopt a more low-coupling development framework, and has extremely high commercial value in the field of virtual simulation software development.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the protection of the present invention. within range.

Claims (4)

1. a kind of external interface implementation method to simulation software business logic, it is characterized in that, described method comprises the steps: Step S1, building and packaging the external interface engine; Step S2, establishing a business data model and an external interface data model; Step S3, edit and bind the script corresponding to the external interface by managing the external interface data model, and update the script content of the external interface in the external interface data model; Step S4, loading the business data model to implement business data loading; Step S5, check and call the corresponding external interface in the life cycle of the business data model to realize the secondary loading of the business data model; Step S6, updating the parameters of the business data model and simulating through the simulator; Step S7, based on the modeling and analysis of the physical structure of the complex system, call the corresponding interface during the update process of the business data model, return the result parameters and load them into the business data model to realize partial real-time update of the business data model; Step S8, on the simulation server side, simulate the electrical or control system in the complex system, realize the external interaction function list of the simulation object, and realize the interaction between the control signal and the physical layer and the database. 2. as claimed in claim 1, to the external interface implementation method of simulation software business logic, it is characterized in that, in described step S2, described business data model is used for realizing the business data of virtual simulation object, and described external interface data The model is used to realize the execution authority, execution process and script content binding logic corresponding to the external interface in the virtual simulation software, and to calibrate the business data processing scope, processing process and corresponding script content of the external interface. 3. as claimed in claim 2 to the external interface implementation method of simulation software business logic, it is characterized in that, described step S4 specific process is as follows: after starting simulator, simulator loads simulator initial business data from database, generates Initialized business data model. 4. as claimed in claim 3, to the external interface realization method of simulation software business logic, it is characterized in that, in described step S8, by writing system status update and operating condition inspection in simulation server end, realize the operation of complex system and state management functions.

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