Roadside Base Station Multi-Protocol Traffic Communication
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Solution Overview
Problem
Current intelligent traffic systems are inadequate in preventing accidents between pedestrians and vehicles, as they do not effectively facilitate radio communication between pedestrian terminals and onboard devices, limiting the transmission and reception of critical information.
Innovation Solution
A base station and traffic communication system that utilize multiple radio communication schemes, including ARIB STD-T109 for vehicle communication and Bluetooth/WLAN for pedestrian communication, allowing roadside devices to transmit and receive information between vehicles and pedestrian terminals, thereby enhancing accident prevention.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single radio communication scheme is used for intelligent traffic systems, then the system complexity is reduced, but the ability to communicate between different device types (pedestrian terminals and onboard devices) is insufficient
Solution Approach 1:
The base station is designed with multiple radio communication schemes (first and second schemes) to support different types of devices. The base station can simultaneously communicate with onboard devices using one scheme and pedestrian terminals using another scheme, making it universally compatible with diverse device types in the intelligent traffic system
Solution Approach 2:
The base station acts as an intermediary device that bridges different communication schemes. It receives information from onboard devices via the first communication scheme and forwards it to pedestrian terminals via the second communication scheme, enabling communication between devices that would otherwise be incompatible
2Adaptability or versatility
If multiple radio communication schemes are implemented in the base station, then communication between pedestrian terminals and onboard devices is enabled, but the device complexity increases
Solution Approach 1:
The base station integrates multiple radio communication schemes within a single device, enabling it to perform multiple communication functions simultaneously. This multi-functionality allows the base station to serve different device types without requiring separate communication infrastructure
3Reliability
If information is transmitted between pedestrian terminals and onboard devices, then accident prevention capability is improved, but the loss of time for information processing and transmission increases
Solution Approach 1:
The base station pre-establishes communication channels and maintains readiness to transmit information between pedestrian terminals and onboard devices. By having the communication infrastructure prepared in advance, the system can quickly transmit critical safety information when needed, reducing transmission delays
Data Source
AI summary
A roadside device 200, which performs radio communication with a mobile station on a road, includes: a first communicator 210 available for a first radio communication scheme; a second communicator available 220 for a second radio communication scheme different from the first radio communication scheme; and a controller configured to acquire, from the first mobile station via the first communicator 210, information associated with a first mobile station and distribute the acquired information to a second mobile station via the second communicator 220.