Cockpit Simulation Load Adjustment for Real-Time Image Sync
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Solution Overview
Problem
Simulating a driving condition for a cockpit system increases the processing load, making real-time image generation impossible, which delays the display of images and invalidates the evaluation of the cockpit system.
Innovation Solution
A simulation apparatus and a processing load adjustment device that calculate the processing load based on time differences between data acquisition and image display, and adjust the processing load to ensure real-time image generation and valid evaluation of the cockpit system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If simulation of driving behavior is performed to evaluate cockpit system, then evaluation accuracy is improved, but processing load increases causing real-time image generation to become impossible
Solution Approach 1:
The system segments the processing load by separating driving behavior simulation from cockpit system simulation. The driving environment simulation unit handles driving behavior data generation independently, while the cockpit system simulation unit processes cockpit responses. This segmentation allows parallel processing, reducing overall processing time and enabling real-time evaluation while maintaining accurate driving behavior simulation.
2Reliability
If processing load is increased to simulate driving behavior, then evaluation validity is improved, but image display is delayed from driving behavior
Solution Approach 1:
The system performs preliminary action by pre-generating driving behavior data through the driving environment simulation unit before processing it through the cockpit system simulation unit. This allows the system to prepare simulation data in advance, reducing processing delays and ensuring that images are displayed with minimal lag relative to driving behavior, thereby maintaining evaluation validity.
Solution Approach 2:
The system implements feedback mechanisms where the processing load calculation unit continuously monitors the time difference between driving behavior data acquisition and image display. When delays are detected, the processing load adjustment unit adjusts simulation parameters to reduce processing time, ensuring that image display remains synchronized with driving behavior and evaluation validity is maintained.
3Adaptability or versatility
If cockpit system simulation is performed with driving behavior, then comprehensive evaluation is achieved, but processing load makes real-time operation difficult
Solution Approach 1:
The system applies dynamics by making the processing load adjustable based on real-time conditions. The processing load adjustment unit dynamically modifies simulation parameters, resolution, or frame rate depending on the current processing load and time difference measurements. This allows the system to maintain comprehensive evaluation capabilities while adapting processing speed to real-time requirements, ensuring both versatility and real-time performance.
Data Source
AI summary
In a simulation apparatus for a cockpit system of a vehicle, a driving environment simulation unit performs simulation of a driving environment of the vehicle involving a driving behavior to acquire driving behavior data and generate a travel image as an image simulating scenery visible from the vehicle during travelling. A travel image display unit displays the travel image. A component display unit displays an image of a component generated based on the driving behavior data. A processing load calculation unit calculates a processing load of the simulation apparatus based on at least one of a time difference between acquisition of the driving behavior data and display of the image of the component corresponding to the driving behavior data and a time difference between acquisition of the driving behavior data and display of the travel image generated in response to the driving behavior data.