Vehicle Traffic Data Transmission via Confidence Parameter Feedback
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Solution Overview
Problem
Existing communication infrastructures for detecting and producing road traffic data incur high costs due to the frequent transmission of traffic status messages, especially as the number of vehicles equipped for this purpose increases, necessitating a more cost-effective and precise method for data transmission.
Innovation Solution
A method where vehicles receive traffic data with a confidence parameter from a central computer, allowing them to decide whether to transmit traffic status messages based on this parameter, reducing unnecessary transmissions by suppressing messages with high confidence values and ensuring only relevant data is sent to the central computer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If vehicles transmit traffic status messages to the central computer frequently, then traffic data coverage is improved, but transmission costs increase significantly
Solution Approach 1:
The central computer sends feedback messages containing traffic data and confidence parameters to vehicles. Vehicles use this feedback to determine whether to transmit their own status messages, creating a feedback loop that reduces redundant transmissions while maintaining data coverage.
Solution Approach 2:
The system introduces a confidence parameter that changes the transmission behavior of vehicles. When the confidence parameter indicates sufficient data availability, vehicles suppress their transmissions, dynamically adjusting transmission frequency based on current system state.
2Loss of information
If all vehicles transmit traffic status messages upon detecting an event, then data completeness is improved, but the number of transmissions increases excessively
Solution Approach 1:
The central computer provides feedback with traffic data and confidence parameters that indicate whether additional data transmissions are needed. This feedback mechanism prevents unnecessary transmissions while ensuring data completeness is maintained.
Solution Approach 2:
The central computer performs preliminary processing of traffic data and generates confidence parameters before vehicles need to transmit. This preliminary action allows vehicles to make informed decisions about transmission necessity, reducing overall transmission volume.
3Adaptability or versatility
If the system uses mobile communications channels for traffic status messages, then data transmission capability is improved, but service provider costs increase
Solution Approach 1:
Instead of all vehicles transmitting continuously, only vehicles that need to update information based on confidence parameters transmit. This partial action approach maintains transmission capability where needed while reducing overall service costs.
Data Source
AI summary
A method for the operation of a driver assistance system of a vehicle (C1, C2), particularly of a motor vehicle and/or a commercial vehicle is provided. A message produced by a central computer (ZR), the message having traffic data (VD) and a confidence parameter (CL) which represents a measure for the reliability of the traffic data (VD) is received by a computer (R1, R2) of the vehicle (C1, C2). According to the magnitude of the confidence parameter, the transmission of a traffic status message (VZD), having at least one time stamp as well as coordinates of the vehicle (C1, C2), is directed to the central computer.