Traffic Light Information Terminal Using Hierarchical Message Decoding
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Solution Overview
Problem
Current methods lack the ability to provide accurate and timely traffic light information to vehicle drivers, requiring them to visually monitor traffic lights, which can lead to sudden braking and divided attention, making it difficult to handle surrounding situations effectively.
Innovation Solution
A terminal and computer program product that receives and decodes traffic light information using a hierarchical message structure, displaying or announcing signal information through a display or voice output, allowing for more accurate road situation awareness and user convenience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traffic light information is not provided to the navigation system, then the driver can visually monitor traffic lights, but the driver must suddenly brake when the traffic light changes and cannot rapidly cope with surrounding situations
Solution Approach 1:
The patent introduces a navigation system as an intermediary device that receives traffic light information through broadcasting signals, decodes the hierarchical message structure, and provides processed traffic light information to the driver. This mediator handles the information processing task, freeing the driver from direct visual monitoring while maintaining safety through automated information delivery.
Solution Approach 2:
The patent replaces the mechanical/physical method of visual monitoring with an electronic information delivery system. Instead of the driver directly observing traffic lights, the system uses broadcasting signal reception, TPEG decoding, and electronic display/voice output to substitute the visual attention mechanism with automated electronic information processing.
2Measurement precision
If the driver concentrates attention on the traffic light to check changes, then the driver can respond to traffic light changes, but it is difficult to rapidly cope with surrounding situations
Solution Approach 1:
The navigation system acts as an intermediary that专门 handles traffic light information processing, receiving hierarchical messages, decoding TPEG data, and delivering processed information through display or voice output. This allows the driver to maintain precise traffic light change detection through the system while preserving the ability to attend to surrounding situations.
Solution Approach 2:
The patent extracts the traffic light monitoring function from the driver's direct visual attention and assigns it to the navigation system. By taking out this specific monitoring task, the system maintains detection precision through automated processing while freeing the driver's attention for broader situational awareness.
3Loss of information
If traffic light information is provided through broadcasting signal reception and decoding, then accurate and timely information is delivered to the driver, but the system requires complex message decoding processing
Solution Approach 1:
The system performs preliminary action by receiving and decoding traffic light information in advance before the driver needs it. The broadcasting signal reception and TPEG decoding occur proactively, allowing the system to have accurate traffic light information ready for immediate display or voice output when needed, reducing information loss while managing complexity through advance processing.
Solution Approach 2:
The navigation system serves as an intermediary that handles the complex message decoding process. By introducing this dedicated intermediate device, the system can implement sophisticated TPEG decoding and hierarchical message processing without directly complicating the driver interface, maintaining information accuracy while isolating complexity within the decoding subsystem.
Data Source
AI summary
A terminal and computer program product for receiving traffic information, a method of providing traffic light information, and a method of guiding a signal are provided. The method of providing traffic light information includes receiving a message comprising traffic light information and having a hierarchical structure; acquiring the traffic light information by decoding the message; and displaying signal information of a specific traffic light in a display based on the traffic light information.