Vehicle Sensor Streaming Protocol for Low-Bandwidth Monitoring
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Solution Overview
Problem
Autonomous or semi-autonomous vehicles face challenges in reliably transmitting sensor and vehicle data to remote systems due to poor connectivity in rural areas with limited bandwidth, leading to data transmission issues and latency.
Innovation Solution
Implementing a low-bandwidth protocol for transmitting vehicle data, which breaks data into separate frames based on type (vehicle signal, diagnostic, and object data) and uses headers with timestamps, allowing for efficient transmission even in low-bandwidth environments, and reconstructing frames for user interface display.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If standard data transmission protocols are used to transmit vehicle sensor data to remote systems, then data completeness can be maintained, but transmission reliability deteriorates in poor connectivity environments with limited bandwidth
Solution Approach 1:
The patent segments vehicle data into distinct frame types (signal frames, diagnostic frames, object frames) with specific headers and message bodies. Each frame type is optimized for its specific data category, allowing selective transmission based on bandwidth availability while maintaining overall system reliability
Solution Approach 2:
The system changes transmission parameters dynamically by adjusting which frame types are transmitted based on bandwidth conditions. In low bandwidth scenarios, less critical frame types can be omitted while critical safety-related frames are prioritized, resolving the contradiction between reliability and information loss
2Speed
If high bandwidth transmission is used to ensure real-time data streaming, then data transmission speed is improved, but adaptability to poor network conditions deteriorates
Solution Approach 1:
The transmission system dynamically adapts its behavior based on network conditions. The protocol can switch between high-bandwidth modes (transmitting all frame types) and low-bandwidth modes (transmitting only critical frames), maintaining speed when possible while adapting to poor conditions when necessary
Solution Approach 2:
Transmission parameters such as frame selection, compression level, and update frequency are changed based on available bandwidth. This allows the system to optimize for speed when network conditions permit while maintaining adaptability when conditions deteriorate
3Measurement precision
If detailed sensor data is transmitted to maintain monitoring precision, then measurement precision is improved, but bandwidth consumption increases
Solution Approach 1:
Different frame types transmit different levels of detail appropriate to their purpose. Critical safety data transmits with high precision while less critical telemetry data uses compressed representations, maintaining monitoring precision where needed while reducing overall bandwidth consumption
Solution Approach 2:
The system transmits only the necessary level of detail for each data type rather than always transmitting maximum detail. This partial action approach maintains sufficient monitoring precision while significantly reducing bandwidth consumption in resource-constrained environments
Data Source
AI summary
Provided are systems, methods and computer program code for transmitting vehicle data to remote monitoring systems using a low bandwidth protocol.