Driving-Assistance Process Allocation by Battery and Link Risk
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Solution Overview
Problem
Existing vehicle driving-assistance systems fail to consider factors other than server load when allocating processes between in-vehicle and external computers, leading to potential interruptions due to changes in vehicle conditions such as battery charge and communication status.
Innovation Solution
A process allocation control method that estimates the risk of process interruption based on remaining battery charge and communication status between nodes, determining the optimal node allocation to prevent interruptions by using an allocation risk estimator and determiner unit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If process allocation is based only on server load, then device complexity is reduced, but reliability deteriorates due to potential interruptions from battery charge and communication status changes
Solution Approach 1:
The system performs preliminary estimation of allocation risk based on battery charge and communication status before actual process allocation occurs. This advance assessment allows the system to prevent interruptions before they happen, improving reliability without requiring complex real-time intervention mechanisms.
Solution Approach 2:
The allocation control device continuously monitors battery charge levels and communication status, using this feedback to dynamically adjust process allocation decisions. This feedback mechanism ensures the system adapts to changing conditions while maintaining a relatively simple overall architecture.
2Reliability
If process allocation considers multiple factors (battery charge, communication status), then reliability improves, but device complexity increases
Solution Approach 1:
The allocation risk estimation is segmented into distinct evaluation components: battery charge assessment, communication status assessment, and their combined effect on process allocation. This segmentation allows the system to handle multiple factors through modular, manageable evaluation steps rather than a single complex assessment.
3Reliability
If process allocation is optimized for resource efficiency, then productivity improves, but reliability worsens due to potential interruptions from battery and communication issues
Solution Approach 1:
The system dynamically adjusts process allocation based on real-time battery charge levels and communication status. This dynamic approach allows the system to optimize resource utilization under normal conditions while automatically adapting to prevent interruptions when resource conditions deteriorate, balancing productivity and reliability.
Data Source
AI summary
A process allocation control method is provided that controls, in a system including an in-vehicle computer mounted in the vehicle and an external computer provided external to the vehicle as nodes communicable with each other, allocation of a process related to driving assistance of the vehicle to the nodes. The process allocation control method includes: estimating an allocation risk of the process being interrupted in cases of allocating the process to either of the nodes, based on at least one of a remaining battery charge of the vehicle or a communication status between the nodes; and determining the node to which the process should be allocated, based on the allocation risk.