Wayside Unit Testing via Virtual Vehicle Simulation
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Solution Overview
Problem
The existing methods for testing wayside units in transportation networks are inconvenient, expensive, and time-consuming, requiring the use of vehicles and other resources, and often necessitate on-site presence, which can occupy valuable network resources and increase downtime.
Innovation Solution
A system comprising a communication module and an analysis module that connects to wayside units to transmit simulation messages, eliciting responses without the need for vehicle participation, allowing for remote or on-site testing, and providing a display for analysis of the unit's operation, thereby reducing resource usage and improving efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional testing methods using actual vehicles and onboard systems are employed, then testing accuracy and reliability are improved, but testing cost, time consumption, and resource occupation increase
Solution Approach 1:
The patent creates a virtual copy of the vehicle's onboard system through software that simulates message transmission and reception. This virtual model replicates the actual system's behavior without requiring physical vehicle presence, thereby maintaining testing accuracy while eliminating time consumption and resource occupation associated with using real vehicles.
Solution Approach 2:
The patent introduces a communication module as an intermediary between the testing system and the wayside unit. This intermediary handles all message exchanges, allowing the test to proceed without direct vehicle involvement. The intermediary simulates the vehicle's communication interface, enabling accurate testing of wayside units while avoiding the need to deploy actual vehicles.
2Adaptability or versatility
If traditional testing methods requiring vehicle participation are used, then comprehensive system integration testing is improved, but device complexity and resource requirements increase
Solution Approach 1:
The patent extracts the essential testing function from the complex vehicle system and isolates it into a standalone software module. By taking out only the message transmission and reception simulation capabilities needed for wayside unit testing, the system achieves comprehensive integration testing without the complexity of deploying entire vehicles or their onboard systems.
Solution Approach 2:
The testing system is designed with universal software that can simulate multiple vehicle types and communication protocols. This multi-functional approach allows the same testing apparatus to handle diverse integration scenarios without requiring different physical vehicle systems, thereby maintaining versatility while reducing overall system complexity.
3Reliability
If on-site presence and vehicle deployment are required for testing, then real-world operational conditions are improved, but ease of operation and accessibility decrease
Solution Approach 1:
The patent replaces the mechanical requirement of physical vehicle presence and on-site deployment with a software-based simulation system. The virtual testing environment replicates real-world operational conditions through programmed message exchanges, eliminating the need for physical travel and on-site presence while maintaining testing reliability and improving accessibility.
4Reliability
If actual vehicles and onboard resources are used for testing, then authentic communication protocols are improved, but productivity and cost-effectiveness decrease
Solution Approach 1:
The patent creates accurate virtual copies of communication protocols through software simulation. The simulated messages replicate the authentic protocol structures, data formats, and transmission patterns without requiring actual vehicles. This copying approach maintains protocol authenticity while dramatically improving testing productivity by eliminating the need for vehicle deployment and on-site operations.
Data Source
AI summary
A system includes a communication module and an analysis module. The communication module is configured to be operably connectable to a wayside unit of a transportation network and to transmit a simulation message to the wayside unit. The simulation message simulates at least one of a request or command from at least one transportation network element corresponding to a wayside action to be performed by the wayside unit. The simulation message is configured to elicit a wayside message from the wayside unit upon receipt of the simulation message. The analysis module is configured to obtain the wayside message and to provide a display corresponding to the wayside message.