Vehicle Server Control for Fallen Object Avoidance Alerts
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Solution Overview
Problem
Existing on-vehicle devices that detect fallen objects on roads using image analysis often notify vehicles about objects that do not need to be avoided, leading to unnecessary avoidance operations.
Innovation Solution
A server device and vehicle system that communicate to determine whether a fallen object should be avoided based on position information and actual avoidance operations performed by vehicles, reducing incorrect notifications by using a server control unit to assess the necessity of avoidance and notify following vehicles within a predetermined range.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If fallen objects are detected using image analysis by on-vehicle devices, then the detection capability is improved, but false notifications about non-hazardous objects increase
Solution Approach 1:
The system collects feedback from multiple vehicles about their avoidance operations for detected fallen objects. The server aggregates this feedback information and uses it to determine whether similar fallen objects should be avoided, creating a learning system that improves notification accuracy over time based on real-world vehicle responses
Solution Approach 2:
A server acts as an intermediary between multiple vehicles, receiving detection information from one vehicle and distributing processed avoidance decisions to following vehicles. The server mediates the information flow, filtering and processing raw detection data into actionable avoidance notifications based on aggregated vehicle feedback
2Reliability
If all detected fallen objects are notified to following vehicles, then safety coverage is improved, but unnecessary avoidance operations increase
Solution Approach 1:
The system applies partial action by notifying following vehicles only about certain fallen objects that are determined to require avoidance, rather than notifying about all detected objects. The server selectively filters notifications based on aggregated feedback, providing just enough safety coverage without excessive alerts that would complicate driver operation
Solution Approach 2:
The system uses feedback from actual vehicle avoidance operations to refine notification decisions. By analyzing whether vehicles actually avoided detected objects, the server learns to distinguish hazardous objects requiring notification from non-hazardous ones, thereby maintaining safety coverage while reducing unnecessary alerts
Data Source
AI summary
A server device includes: a server communication unit configured to communicate with a vehicle, and receive fallen object avoidance information from the vehicle, the fallen object avoidance information including position information on a fallen object and information indicating whether an avoidance operation was performed by the vehicle for the fallen object; and a server control unit configured to determine, for the same fallen object that is present at the same position, whether the same fallen object should be avoided based on the fallen object avoidance information, and notify a first following vehicle that the same fallen object should be avoided when the server control unit determines that the same fallen object should be avoided, the first following vehicle being a vehicle that is traveling within a predetermined range behind the same fallen object.