Bidirectional Link Device for V2X Standard Adaptation
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Solution Overview
Problem
Autonomous cooperative traveling vehicles face challenges in performing continuous interlocking tests for V2V and V2I communications across various regions and standards.
Innovation Solution
A bidirectional link device mounted on autonomous cooperative traveling vehicles, equipped with a communication standard detector, encoder/decoder, and link controller, to facilitate smooth information sharing with autonomous traveling infrastructure devices by detecting and adapting to different communication standards.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If autonomous cooperative traveling vehicles perform interlocking tests for V2V and V2I communication in a specific region, then communication reliability is improved, but adaptability to various regions and standards deteriorates
Solution Approach 1:
The bidirectional link device is designed to support multiple communication standards (DSRC and C-V2X) and operate across different regions. It includes a communication standard detector that identifies the standard used by infrastructure devices, an encoder/decoder that adapts to the detected standard, and a link controller that manages bidirectional communication. This multi-functional design enables the vehicle to perform interlocking tests in various regions with different communication standards while maintaining reliable communication.
Solution Approach 2:
The system dynamically changes communication parameters based on the detected environment. The communication standard detector identifies the regional standard, and the encoder/decoder adjusts encoding schemes, modulation methods, and protocol parameters accordingly. This parameter adaptation allows the vehicle to maintain reliable communication across different regions without requiring separate testing systems for each standard.
2Loss of information
If respective service data is constructed and exchanged without standardized interoperability, then information sharing between vehicles and infrastructure is improved, but interoperability across different systems deteriorates
Solution Approach 1:
The bidirectional link device acts as an intermediary between the autonomous vehicle and infrastructure devices. It includes a communication standard detector that identifies the infrastructure's standard, an encoder/decoder that translates between different standards, and a link controller that manages the interaction. This intermediary structure enables efficient information sharing while ensuring interoperability across different communication systems and regions.
Solution Approach 2:
The bidirectional link device is designed with multi-functional capabilities to handle both V2V and V2I communication across multiple standards. It can detect communication standards, encode/decode various data formats, and maintain bidirectional links with different infrastructure devices. This universal design ensures that service data can be efficiently shared while maintaining interoperability across different systems and regions.
3Adaptability or versatility
If continuous interlocking tests are performed across various regions and standards, then adaptability is improved, but system complexity increases
Solution Approach 1:
The system merges multiple communication standard support into a single bidirectional link device. Rather than having separate testing systems for DSRC and C-V2X, the device integrates standard detection, multiple encoding/decoding capabilities, and link control functions. This consolidation reduces overall system complexity while maintaining adaptability to various regions and standards.
Solution Approach 2:
The system employs dynamic adaptation rather than static configuration for each standard. The communication standard detector dynamically identifies the infrastructure's standard, and the encoder/decoder dynamically adjusts its operation accordingly. This dynamic approach allows the system to handle various regions and standards without requiring complex pre-configured systems for each scenario.
Data Source
AI summary
Disclosed are a bidirectional link device and method for V2X-based autonomous cooperative traveling. The bidirectional link device mounted on an autonomous cooperative traveling vehicle to support V2X communication between the autonomous cooperative traveling vehicle and a plurality of autonomous traveling infrastructure devices includes a communication standard detector that detects a communication standard of a sharing infrastructure device that is an autonomous traveling infrastructure device that will perform the V2X communication among the plurality of autonomous traveling infrastructure devices, an encoder/decoder that encodes vehicle information of the autonomous cooperative traveling vehicle using the detected communication standard and decodes infrastructure information of the sharing infrastructure device, and a link controller that controls the encoding and the decoding according to a predetermined criterion.