Remote Vehicle Control Data Stream Prioritization
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Solution Overview
Problem
Existing systems for remotely controlled vehicles lack effective mechanisms for managing and optimizing the quality of experience for remote operators by efficiently providing and prioritizing data streams from multiple sensors, particularly in terms of bandwidth and delay, while also considering the operator's attention and vehicle dynamics.
Innovation Solution
The system includes a vehicle computer that processes and prioritizes data streams from multimedia sensors, adjusts their resolution and position, and determines the relevance based on available bandwidth, end-to-end delay, vehicle state, and operator feedback, ensuring that only the most critical data is transmitted in real-time to the remote control site.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If data streams from multiple sensors are transmitted with high resolution and quality, then the quality of experience for remote operators is improved, but bandwidth consumption increases
Solution Approach 1:
The system applies different quality levels to different data streams based on their importance and the operator's current needs. Critical data streams receive high resolution while less critical ones are transmitted at lower resolution, optimizing the trade-off between quality and bandwidth consumption
Solution Approach 2:
The system dynamically adjusts transmission parameters such as resolution, frame rate, and compression level based on available bandwidth, operator attention state, and vehicle dynamics, allowing flexible optimization of data quality versus bandwidth usage
2Loss of information
If multiple high-resolution data streams are transmitted simultaneously, then the operator receives comprehensive vehicle information, but end-to-end delay increases
Solution Approach 1:
The system extracts and prioritizes only the most critical data streams for immediate transmission, while less critical data is either transmitted with lower priority or compressed more aggressively, reducing overall transmission time and delay
Solution Approach 2:
The system transmits a subset of available data streams at full quality while others are transmitted at reduced quality or deferred, providing sufficient information for safe operation without the overhead of transmitting all possible data
3Loss of information
If the system transmits all sensor data streams, then complete vehicle information is provided, but the operator's attention and vehicle dynamics are not optimized
Solution Approach 1:
The system uses feedback from operator attention state (eye tracking, head position) and vehicle dynamics (acceleration, turning rate) to dynamically adjust which data streams are transmitted and at what quality, ensuring relevant information is prioritized based on current operational context
Solution Approach 2:
The system dynamically adapts the set of transmitted data streams and their quality levels in real-time based on changing operator needs and vehicle state, rather than using a static transmission configuration
Data Source
AI summary
A plurality of data streams are received from a vehicle, at least one of the data streams including multimedia data. A prioritization of the data streams is performed according to one or more factors. At least one of adjusting at least one of the data streams and preventing transmission of at least one of the data streams according to the prioritization is performed.