V2X Drowsy Driver Detection Using Shared Path History
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Solution Overview
Problem
Existing systems lack effective methods to detect drowsy drivers using Vehicle-to-Everything (V2X) communications and mitigate the risks posed by them to other drivers, especially in non-line of sight scenarios or adverse weather conditions.
Innovation Solution
A drowsy detection system installed in connected vehicles that utilizes V2X communications to analyze path history data from other vehicles to identify drowsy drivers, and either notify the driver or automatically adjust vehicle operations to avoid or mitigate risks, including the use of DSRC-equipped vehicles and onboard sensors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If local onboard sensors are used to detect drowsy drivers, then detection can be performed in real-time, but detection fails in non-line of sight scenarios or adverse weather conditions
Solution Approach 1:
The patent introduces V2X communication as an intermediary mechanism that allows vehicles to share driver state information with surrounding vehicles. Instead of relying solely on local sensors, the system uses other vehicles' sensors and communications to detect drowsy drivers, thereby extending detection coverage to non-line of sight scenarios and adverse weather conditions while maintaining real-time detection capability
Solution Approach 2:
The patent transitions from a single-vehicle detection dimension to a multi-vehicle networked detection dimension. By utilizing V2X communications, the system detects drowsy drivers not only through local sensors but also through path history data and driver dynamic information from other vehicles, adding spatial and informational dimensions to the detection process
2Adaptability or versatility
If V2X communications are used to detect drowsy drivers, then detection coverage is improved in non-line of sight scenarios, but system complexity increases
Solution Approach 1:
The patent leverages the existing V2X communication infrastructure, which was originally designed for basic safety messages and path history data exchange, to also transmit driver dynamic information and drowsiness detection data. This multi-functional use of existing communication channels avoids the need for dedicated new hardware systems, thereby reducing the increase in system complexity
Solution Approach 2:
The system utilizes the existing V2X communication capabilities and path history data that vehicles already generate and transmit for other purposes. By repurposing this existing data infrastructure for drowsy driver detection, the system minimizes additional hardware and processing requirements, thereby limiting the increase in system complexity
Data Source
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AI summary
The disclosure describes embodiments for to detecting a presence of a drowsy driver of a vehicle based on Vehicle-to-Everything (V2X) communications. In some embodiments, a method includes receiving, by a first connected vehicle, a V2X message including digital data describing a path history of a second connected vehicle. The method includes determining, by the first connected vehicle, that a driver of the second connected vehicle is drowsy based on the path history described by the digital data included in the V2X message. The method includes executing, by the first connected vehicle, a remedial action that is operable to modify an operation of the first connected vehicle based on the driver of the second connected vehicle being drowsy so that a risk created by the driver is reduced.