Vehicle Data Prioritization for Mixed Autonomy Communication
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Solution Overview
Problem
Existing systems struggle to effectively communicate limited data amounts between mobile bodies with varying control attributes, such as different levels of automatic driving, leading to inefficiencies in inter-mobile body communication.
Innovation Solution
An information generation device and method that estimates the control attributes of surrounding mobile bodies and prioritizes data transmission based on these attributes, generating information that is efficiently used by the receiving mobile bodies.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If information is transmitted without considering control attributes, then all mobile bodies receive the same data, but the data amount becomes insufficient for mobile bodies with different control requirements
Solution Approach 1:
The patent applies local quality by tailoring the information content to match the specific control attributes of each receiving mobile body. Instead of transmitting uniform data to all devices, the system identifies the control attribute level (e.g., automatic driving level 3 or 4) and selectively transmits only the relevant information items needed for that specific control level, thereby optimizing data relevance and quantity for each recipient.
Solution Approach 2:
The patent changes the parameter of information selection based on the control attribute parameter of the receiving mobile body. The system dynamically adjusts which information items are included in the transmission by changing the selection criteria according to the detected control attribute level, transforming a static one-size-fits-all approach into a dynamic adaptive approach that optimizes data quantity and quality for each recipient.
2Productivity
If all mobile body information is transmitted, then information completeness is maintained, but communication efficiency decreases due to limited data amount
Solution Approach 1:
The patent extracts only the necessary information items from the complete set of available mobile body information based on the control attribute level of the receiving device. By identifying which information items are essential for specific control levels (e.g., extracting position and speed information for automatic driving level 3), the system removes unnecessary data while preserving critical information, thereby improving communication efficiency without significant loss of information completeness.
Solution Approach 2:
The patent applies partial action by transmitting only a subset of available information items rather than all possible data. The system determines the appropriate level of information transmission based on control attributes, providing sufficient information for the required control level without overwhelming the receiving device with excessive data, thus optimizing the balance between information completeness and communication efficiency.
Data Source
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AI summary
To provide an information generation device and the like that, when generating transmission data of inter-mobile body communication having a limited data amount, generate information that can be effectively used by a mobile body on a reception side. An information generation device 1 mountable on a mobile body (5), the information generation device 1 estimating a control attribute concerning driving control for another mobile body existing in a communicable range from a position of the mobile body (5), the control attribute being a control attribute of mobile bodies relatively large in number, (S4) and generating information for transmission transmitted to the other mobile body, the information for transmission including mobile body information of an item prioritized according to the estimated control attribute among a plurality of items of mobile body information including information concerning the driving control for the mobile body (5) (S7).