Remote Control Apparatus Dynamic Buffer Management for Vehicle Steering
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Solution Overview
Problem
Existing remote control technologies face challenges in achieving sufficient control response speed due to communication delays, especially when the drive condition of a control object is changing, such as when a vehicle navigates curved routes or varying gradients, leading to inaccurate control.
Innovation Solution
The remote control apparatus executes handling processing by adjusting communication parameters, including increasing the number of communication channels, enhancing transmission signal power, and modifying the Modulation and Coding Scheme (MCS) index, to reduce communication delays. This involves determining specific threshold values based on the vehicle's speed and route conditions, installing receiving antennas at optimal locations, and commanding the control object to change its communication settings dynamically.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If image data are temporarily stored in a buffer memory to maintain constant total delay time, then variations in displayed image data are reduced, but control response speed becomes insufficient
Solution Approach 1:
The buffer memory management is made dynamic by adjusting the storage duration and retrieval timing based on the drive condition determination. When drive conditions are determined to be changing, the system reduces buffer storage time to prioritize response speed, while maintaining buffer storage during stable conditions to ensure image stability.
Solution Approach 2:
The system changes the delay time parameter dynamically based on drive condition determination. When drive conditions are changing, the total delay time is reduced by adjusting buffer storage duration, allowing the system to transition from a fixed delay approach to a variable delay approach that prioritizes response speed when needed.
2Stability of the object's composition
If the total delay time is maintained at a constant value, then variations in image data are reduced, but accurate control during changing drive conditions becomes difficult
Solution Approach 1:
The system changes the total delay time parameter based on drive condition determination. When drive conditions are determined to be changing (such as during steering or acceleration changes), the system reduces the delay time to improve control accuracy, while maintaining longer delay times during stable conditions for display consistency.
Solution Approach 2:
The buffer memory management transitions from a static fixed-delay approach to a dynamic adaptive approach. The system continuously monitors drive conditions and adjusts buffer storage duration accordingly, making the delay time flexible rather than fixed, thereby achieving both stability during normal operation and accuracy during changing conditions.
3Stability of the object's composition
If buffer storage delay is increased to compensate for reception delay, then image data variations are smoothed, but control response becomes too slow
Solution Approach 1:
The system dynamically changes the buffer storage delay parameter based on drive condition determination. When drive conditions are changing, the buffer storage delay is reduced or eliminated to minimize time loss, while during stable conditions, the buffer storage delay is increased to smooth image display variations.
Solution Approach 2:
The buffer memory management system becomes dynamic by adjusting storage duration based on real-time drive condition assessment. This allows the system to optimize the trade-off between image smoothness and response time by reducing buffer storage when rapid response is needed and increasing it when stability is prioritized.
Data Source
AI summary
A remote control apparatus uses wireless communication to control driving of a control object such as a vehicle. When the drive condition is changing, as when the vehicle is being steered to follow a curve in a travel route, while also the vehicle speed exceeds a specified threshold value, processing is executed for reducing a communication delay between the remote control apparatus and the control object, to thereby ensure sufficient speed of control response.