Sensor Resource Management for Automated Driving Failover
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Solution Overview
Problem
Automated driving control systems face instability due to increased communication load from unnecessary sensing results when a sensor failure occurs, as they constantly distribute sensing results tagged for sharing even in normal conditions, leading to potential operational disruptions.
Innovation Solution
An information processing device and method that includes a sensor resource management unit to transfer substitutable sensing results between subsystems in case of sensor malfunction, ensuring continuous operation without increasing communication load by utilizing a sensor resource management table and substitutable map to identify and manage sensor pairs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If sensing results tagged for sharing are constantly distributed among subsystems, then reliability is improved by enabling failover capability, but device complexity increases due to continuous unnecessary data transfer
Solution Approach 1:
The patent implements dynamic sensing result distribution where the sharing status of sensing results changes based on system conditions. The sensor resource management unit dynamically determines whether to distribute sensing results to other subsystems based on whether the primary sensor is functioning normally, thereby adapting the communication load to actual reliability needs
Solution Approach 2:
The patent changes the parameter of data distribution frequency from constant to conditional. By monitoring sensor operation status and changing the distribution parameter accordingly (distributing only when failure occurs), the system maintains reliability while reducing unnecessary communication overhead
2Reliability
If substitutable sensing results are transferred between subsystems upon sensor failure, then reliability is improved through failover capability, but loss of time occurs during the failure detection and switching process
Solution Approach 1:
The patent performs preliminary actions by pre-establishing the substitutable relationship between sensors and subsystems before failure occurs. The sensor resource management unit maintains knowledge of which subsystems can use which substitutable sensing results, enabling immediate switching when failure occurs without time-consuming search or decision-making during the critical failure response period
Data Source
AI summary
The present disclosure relates to an information processing device, an information processing method, and a program that improve stability of automated driving control by enabling appropriate acquisition of a substitutable sensing result from another sensor at the time of failure of a specific sensor without increasing a communication load in a case where there is no abnormality in the sensor in automated driving control using a plurality of sensors.In a case where a malfunction of a sensor is detected in a first subsystem among a plurality of subsystems, a second subsystem including a sensor that detects a sensing result that is substitutable for a sensing result of the sensor of the first subsystem is caused to transfer the sensing result of the sensor to the first subsystem. The present disclosure can be applied to a vehicle control system of a vehicle that performs automated driving.