Traffic Information Processing for Intelligent Transportation Systems
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Solution Overview
Problem
In intelligent transportation systems (ITS), existing wireless communication technologies such as DSRC and LTE-V fail to accurately notify traffic information to relevant vehicles, leading to unnecessary information dissemination and resource wastage, as recipients are not distinguished during broadcasts.
Innovation Solution
A traffic information processing method and apparatus that determines an interaction coverage area based on the traffic application type and information of a target object, and sends this information to a specific traffic control unit with an overlapping management area, ensuring accurate notification and minimizing resource waste.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traffic information is broadcast to all surrounding vehicles over wireless network, then all vehicles can receive the information, but communication resources and processing resources are wasted on vehicles that do not need the information
Solution Approach 1:
The patent segments the broadcast approach by determining a specific interaction coverage area based on traffic application type and target object information, then selectively sending information only to traffic control units within this area. This divides the universal broadcast into targeted segments, eliminating resource wastage on irrelevant vehicles while ensuring accurate delivery to those who need the information.
Solution Approach 2:
The patent applies local quality by determining different interaction coverage areas for different traffic application types (e.g., emergency vehicle notification vs. general traffic information). Each application type receives tailored coverage based on its specific requirements, allowing the system to optimize resource allocation for each local scenario rather than using a uniform broadcast approach.
2Reliability
If traffic information is broadcast without distinguishing recipients, then all vehicles in the area receive the information, but the information cannot be accurately notified to the intended traffic participant
Solution Approach 1:
The patent performs preliminary action by determining the interaction coverage area and identifying relevant traffic control units before actually sending the traffic information. This pre-processing step filters and prepares the recipient list in advance, ensuring that when information is transmitted, it is already targeted to the correct vehicles, thereby improving notification accuracy without adding complexity during the actual transmission.
3Productivity
If universal broadcast is used for traffic information, then coverage is maximized, but processing resources are wasted on unnecessary information dissemination
Solution Approach 1:
The patent applies partial action by sending traffic information only to the extent necessary for the specific traffic application type and target object, rather than universally broadcasting to all vehicles. The interaction coverage area is calculated to include only the minimum necessary traffic control units that need the information, avoiding excessive dissemination while ensuring complete coverage for the intended purpose.
Data Source
AI summary
A traffic information processing method includes obtaining, by a first traffic control unit, a traffic application type and first traffic information of a traffic target object, determining an interaction coverage area based on the traffic application type and the first traffic information of the traffic target object, determining, by the first traffic control unit, a second traffic control unit based on the interaction coverage area and a management area of a traffic control unit known to the first traffic control unit, and sending the first traffic information of the traffic target object to the second traffic control unit, where there is an overlapping area between a management area of the second traffic control unit and the interaction coverage area.