Vehicle Traveling Simulation System for In-Vehicle Multimedia Testing
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Solution Overview
Problem
Testing in-vehicle multimedia devices, especially when simulating foreign infrastructure information, is costly and inefficient due to the need for actual vehicle travel, which is impractical and expensive.
Innovation Solution
A vehicle traveling simulation system that includes a multimedia device, an activation device, and external terminal devices to simulate vehicle state data, allowing the multimedia device to be activated and tested without physical vehicle travel, by inputting and processing vehicle state data to replicate traveling conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If actual vehicle travel is used to acquire diagnostic information for testing multimedia devices, then testing accuracy is improved, but testing cost increases significantly
Solution Approach 1:
The patent creates a virtual copy of the vehicle traveling environment through a simulation system. External terminal devices generate simulated vehicle state data (position, speed, acceleration, infrastructure information) that replicates actual traveling conditions without requiring physical vehicle travel. This copying approach maintains testing accuracy while eliminating the high costs of actual road tests, especially for foreign infrastructure information testing.
2Reliability
If actual vehicle travel is used to test multimedia device functions, then functional validation is improved, but time consumption increases
Solution Approach 1:
The simulation system prepares and inputs simulated vehicle state data in advance, allowing the multimedia device to be activated and tested immediately without waiting for actual vehicle travel conditions. The external terminal devices can generate and provide various traveling scenario data (different positions, speeds, infrastructure information) beforehand, enabling comprehensive functional validation to be performed rapidly in a controlled environment.
3Adaptability or versatility
If multiple external terminal devices are used to simulate vehicle state data, then simulation capability is improved, but system complexity increases
Solution Approach 1:
The activation device serves multiple functions: it acquires simulated vehicle state data from external terminal devices, processes this data, and inputs it to activate the multimedia device. The external terminal devices themselves are multi-functional, capable of generating various types of vehicle state data (position, speed, acceleration, infrastructure information) and serving different testing scenarios. This universal design enables comprehensive simulation capability while managing system complexity through standardized interfaces and protocols.
Data Source
AI summary
In a vehicle traveling simulation system, a multimedia device has at least a test target function among in-vehicle media functions. An activation device activates the multimedia device. A plurality of external terminal devices is respectively provided at different positions from the multimedia device. A data acquisition unit of the activation device is able to acquire vehicle state data simulating a vehicle state when a vehicle is traveling from the plurality of external terminal devices. An input unit inputs, to the multimedia device, activation data corresponding to the vehicle state data. The multimedia device is activated based on the input activation data.