V2I Message Structure for Work Zone Safety Precision
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Solution Overview
Problem
Current V2X communication systems face challenges in accurately transmitting and receiving messages for work zone safety services, particularly in providing precise information about lane closures and work segment details, due to limitations in information representation using single reference positions and lane closed segment information.
Innovation Solution
The proposed solution involves a V2X communication device that generates a V2I message with a common container including message ID, event ID, and reference position information, and a specific container with lane closed segment, lane closed start segment, and reference position offset information, processed through network/transport and physical layers using Wave Short Message Protocol (WSMP), to provide accurate work segment-related information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a single reference position and lane closed segment information are used to represent work zone data, then the message structure is simple, but the precision of work segment location information is insufficient
Solution Approach 1:
The work zone information is segmented into multiple reference positions (first reference position and second reference position) with separate distance values (first distance and second distance) to represent different segments of the closed lane. This segmentation allows precise representation of work zone locations by dividing the overall work zone into manageable segments, each with its own reference point and distance measurement.
Solution Approach 2:
The patent introduces an additional dimensional parameter by adding a second reference position and second distance to the traditional single reference position model. This creates a two-dimensional reference system that captures the spatial extent of work zones more accurately, transforming the representation from a single-point reference to a distributed multi-point reference system.
2Reliability
If detailed work zone information including multiple reference positions and distances is transmitted, then the accuracy of safety alarms is improved, but the amount of data to be processed increases
Solution Approach 1:
The work zone information is segmented into multiple reference positions (first reference position and second reference position) with separate distance values (first distance and second distance) to represent different segments of the closed lane. This segmentation allows precise representation of work zone locations by dividing the overall work zone into manageable segments, each with its own reference point and distance measurement.
Solution Approach 2:
The patent introduces an additional dimensional parameter by adding a second reference position and second distance to the traditional single reference position model. This creates a two-dimensional reference system that captures the spatial extent of work zones more accurately, transforming the representation from a single-point reference to a distributed multi-point reference system.
Data Source
AI summary
Disclosed is a V2I message transmission method for a V2X communication device. The V2I message transmission method according to an embodiment of the present invention may comprise the steps of: generating a V2I message for providing V2I services, i.e., services between vehicles and infrastructure, wherein the V2I message includes a first container, which includes information commonly used for the V2I services, and a second container, which includes information used for a particular V2I service; subjecting the V2I message to network/transport layer processing; and generating a V2I message frame by subjecting the V2I message packet to physical layer processing. Herein, the first container may include message ID information indicating the identifier of the V2I message, event ID information indicating the identifier of an event, and reference position information indicating a first reference position related to the event.