Train Signal System Using LUA Framework for Dynamic Scripting
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Solution Overview
Problem
Existing train signal systems face challenges with poor functional flexibility, compatibility issues due to inherent code, and complexity in upgrades, as well as limitations in supporting multiple operating environments, making it difficult to compile stable and reliable programs for diverse communication modes and monitoring devices.
Innovation Solution
The implementation of a train signal system utilizing the LUA language, which allows for dynamic script instructions to be executed without modifying tool code, enabling flexible functional configuration on both PC and physical devices, and adapting to varying train requirements through an LUA framework that supports communication between subsystems via distinct interfaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If inherent code is written into the framework to realize a corresponding function, then the function can be implemented, but the functional flexibility deteriorates
Solution Approach 1:
The patent applies dynamics by making the framework code dynamic through LUA scripting capability. The system allows dynamic addition, modification, and deletion of code functions during runtime without requiring system restart or recompilation. This resolves the contradiction by enabling both reliable function implementation through structured framework and functional flexibility through dynamic script injection.
Solution Approach 2:
The patent introduces an intermediary mechanism - the LUA script engine - that bridges the fixed framework code and the need for functional flexibility. The script engine acts as a mediator that allows dynamic code execution within the stable framework structure, enabling function implementation while maintaining adaptability.
2Adaptability or versatility
If DLL is used to test the framework and dynamically add interface framework agent, then the test capability is improved, but the compatibility deteriorates and upgrade operations become complicated
Solution Approach 1:
The patent applies universality by creating a unified code management system that handles both testing and operational code through a single LUA scripting interface. This universal approach eliminates the need for separate DLL mechanisms, improving test capability while simplifying upgrade operations through a standardized script deployment process.
Solution Approach 2:
The patent replaces the mechanical DLL-based code loading system with a LUA script-based system. This substitution eliminates the compatibility and complexity issues inherent in DLL mechanisms, as scripts are platform-independent and can be deployed through simple file operations rather than complex binary linkage processes.
3Device complexity
If the operating platform supports only one operating environment (PC or physical device), then the system simplicity is maintained, but the adaptability to diverse application scenarios deteriorates
Solution Approach 1:
The patent applies universality by designing the signal system to support multiple operating environments (PC and physical devices) through a unified LUA scripting interface. The same script can execute on different platforms without modification, achieving multi-environment support while maintaining system simplicity through consistent code structure and deployment mechanisms.
Data Source
AI summary
A train signal system includes a first subsystem, a second subsystem, built by an LUA framework, and a control platform configured to perform communication with the first subsystem by using a first interface, perform communication with the second subsystem by using a second interface, and transmit an LUA script instruction to the second subsystem by using the second interface, so that the second subsystem executes the LUA script instruction.