Roadside Unit Vehicle Priority Control
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Solution Overview
Problem
Current traffic control methods lack accuracy in managing priority passage for vehicles, especially in complex internet of vehicles scenarios, where refined control is needed for vehicles with special purposes during emergencies.
Innovation Solution
A traffic control method and apparatus that enhance vehicle intention and request messages with classification and load information, allowing road side units to determine and transmit target signal priority requests to traffic signal control systems, enabling more accurate priority passage decisions based on vehicle type and occupancy rates.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If vehicle intention and request messages are enhanced with classification and load information, then priority passage control accuracy is improved, but data processing and transmission volumes increase
Solution Approach 1:
The patent applies local quality by selectively adding classification information and load information only to the relevant portions of vehicle intention and request messages, rather than enhancing all data uniformly. This targeted approach improves priority passage control accuracy for emergency vehicles while minimizing unnecessary data processing for standard vehicles.
Solution Approach 2:
The system dynamically determines whether to process and transmit enhanced message data based on vehicle type and situation. The road side unit and traffic signal control system adapt their processing behavior according to the classification and load information, enabling flexible data handling that balances accuracy requirements with processing volume constraints.
2Measurement precision
If more vehicle information is collected and processed, then priority passage decision accuracy is improved, but system complexity increases
Solution Approach 1:
The patent segments the information processing function by introducing a road side unit that acts as an intermediary between vehicles and the traffic signal control system. This segmentation allows the road side unit to handle basic message enhancement and filtering, while the traffic signal control system focuses on priority passage decisions, thereby reducing overall system complexity through functional division.
Solution Approach 2:
The road side unit serves as an intermediary that receives vehicle intention and request messages, enhances them with classification and load information, and then transmits only the necessary target signal priority request information to the traffic signal control system. This intermediary approach simplifies the system architecture by centralizing the data enhancement function.
3Adaptability or versatility
If all vehicle requests are forwarded to traffic signal control system, then control coverage is maximized, but data transmission volume and processing load increase
Solution Approach 1:
The patent extracts and separates the essential priority passage control function from the general traffic signal control. By identifying and extracting only the necessary target signal priority request information containing classification and load data, the system forwards only relevant messages to the traffic signal control system, thereby reducing data transmission volume while maintaining comprehensive control coverage for emergency vehicles.
Data Source
AI summary
Embodiments of the present disclosure disclose a traffic control method and apparatus, a device, and a storage medium. The method includes: receiving a vehicle intention and request message transmitted by a vehicle, the vehicle intention and request message including signal priority request information, and the signal priority request information including at least one of classification information and load information of the vehicle; and transmitting target signal priority request information in the vehicle intention and request message to a road traffic signal control system, the target signal priority request information including at least one of the classification information and the load information of the vehicle. The target signal priority request information is configured for instructing the road traffic signal control system to determine, based on the target signal priority request information, whether to allow for priority passage of the vehicle at a first intersection.