Map-Guided In-Vehicle Communication for Sensor Blind Spots
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Solution Overview
Problem
There is a demand for technology that can further reduce the amount of communication between in-vehicle devices and management devices outside the vehicle, beyond existing systems that aggregate detection results from infrastructure-based and in-vehicle sensors.
Innovation Solution
An in-vehicle device that receives map information, detects blind spot areas using in-vehicle sensors, and controls communication with a management device based on predicted movements of objects and vehicles, thereby determining the need for communication and reducing unnecessary data transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the in-vehicle device transmits detection results and blind spot information to the management device, then the management device can aggregate data from multiple sources, but the communication amount between in-vehicle device and management device increases
Solution Approach 1:
The patent extracts only the essential information (blind spot area coordinates and moving object information) from the complete detection results, transmitting only what is necessary for the management device to perform aggregation. This selective extraction reduces communication overhead while maintaining the reliability needed for accurate detection and aggregation operations.
2Speed
If the in-vehicle device continuously transmits detection data, then real-time aggregation can be achieved, but network resources are consumed excessively
Solution Approach 1:
The patent implements periodic transmission of blind spot information at predetermined intervals rather than continuous transmission. The communication control unit sends updated blind spot area information and moving object data only when changes occur or at scheduled intervals, reducing network resource consumption while still enabling timely aggregation and maintaining real-time operational capability.
Data Source
AI summary
An in-vehicle device includes: a communication unit configured to receive map information, which includes information on a moving object in a target area, from a management device; a detection unit configured to detect, based on the map information received by the communication unit and information indicating a detection range of an in-vehicle sensor mounted in a vehicle, a blind spot area of the in-vehicle sensor in the target area; and a communication control unit configured to control communication with the management device by the communication unit, based on a predicted content relating to movement of the moving object in the blind spot area detected by the detection unit and a predicted content relating to movement of the vehicle.