Direction Prediction for Low Latency Mobile Simulation Rendering
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Solution Overview
Problem
Mobile device simulations experience latency due to asynchronous measurement and rendering periods, causing a time delay between sensor data and image display, which affects user interaction and experience.
Innovation Solution
An apparatus and method that includes a sensor unit, direction calculating unit, and simulation unit to correct time delays by calculating and applying angular velocity to direction information, ensuring synchronized motion simulation and image rendering.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If sensor measurement and image rendering are performed periodically without time synchronization, then the simulation system can operate continuously, but time delay and latency are introduced between sensor data acquisition and image display
Solution Approach 1:
The patent applies preliminary action by predicting the direction information at the rendering time based on the measured motion information. The direction calculating unit calculates direction information at the sensor measurement time, then the time delay correcting unit predicts what the direction would be at the later rendering time by using motion data and time difference calculation. This allows the simulation system to maintain continuous operation while compensating for the time delay between sensing and rendering.
2Productivity
If direction information is calculated without time delay correction, then the calculation process is simpler and faster, but the simulation accuracy and naturalness are reduced due to asynchronous measurement and rendering
Solution Approach 1:
The patent applies parameter changes by adjusting the direction information parameters based on time delay correction. The time delay correcting unit modifies the direction information calculated from motion data by incorporating the time difference between measurement and rendering. This involves calculating angular velocity and applying it to correct the direction information, thereby maintaining simulation accuracy while using efficient calculation methods.
3Loss of time
If time delay correction is applied to direction information, then latency between target motion and image display is reduced, but the calculation complexity increases due to additional time difference computations
Solution Approach 1:
The patent applies the intermediary principle by introducing a time delay correcting unit as a mediator between the direction calculating unit and the simulation unit. This intermediary component handles the time difference correction by calculating angular velocity and applying it to predict direction information at the rendering time. The separating of this correction function into a dedicated unit simplifies the overall system architecture while reducing latency.
Data Source
AI summary
A simulation apparatus may comprise: a sensor unit configured to acquire movement information of an object using one or more sensors; a direction calculation unit configured to calculate direction information of the object using the movement information; and a simulation unit configured to simulate a physical object and render an image of the physical object on the basis of the direction information received from the direction calculation unit. The direction calculation unit may include a time delay correction unit configured to correct the direction information using a time difference between the time of acquiring the movement information and the time of rendering the image.