In-Vehicle Terminal Reverse Travel Detection
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Solution Overview
Problem
Existing vehicle communication systems cannot determine whether a vehicle is traveling in reverse, limiting their functionality.
Innovation Solution
A terminal device and rearward server system that acquires and transmits positional and traveling direction information to determine if a vehicle is reversing, with an in-vehicle transponder providing data to the terminal device for communication with the server.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If existing vehicle communication systems are used, then communication associated with charges can be performed, but communication associated with traveling state cannot be performed and reverse travel cannot be determined
Solution Approach 1:
The existing vehicle communication system is extended to perform multiple functions: both charge-related communication and traveling state communication. The terminal device and rearward server are adapted to handle diverse communication types through unified processing mechanisms, allowing the system to serve both payment and safety monitoring purposes without requiring separate dedicated systems.
Solution Approach 2:
The system changes the parameters of communication by introducing new data types (traveling state information, positional information, traveling direction information) while maintaining the existing communication framework. This allows the system to evolve from handling only charge information to handling both charge and traveling state information through parameter expansion rather than structural overhaul.
2Measurement precision
If roadside sensors and cameras are deployed to determine reverse travel, then accurate detection can be achieved, but operational costs increase
Solution Approach 1:
The vehicle itself provides the detection capability through its own terminal device that captures traveling state information. Instead of relying on external roadside infrastructure, the system uses the vehicle's embedded terminal to self-monitor and communicate its traveling state, eliminating the need for costly roadside sensors and cameras while maintaining detection accuracy.
Solution Approach 2:
The patent replaces the mechanical/physical detection system (roadside sensors and cameras) with an electronic information-based system. The terminal device electronically captures and transmits traveling state data, substituting physical monitoring infrastructure with digital communication mechanisms that are more cost-effective and easier to deploy.
3Device complexity
If terminal device processes all reverse travel determination, then system complexity increases, but if only rearward server processes, then data transmission load increases
Solution Approach 1:
The processing workload is segmented between the terminal device and rearward server. The terminal device performs initial data collection and preliminary determination of traveling state, then transmits only relevant results or summary data to the rearward server for final verification and record-keeping. This segmentation reduces both the complexity at any single device and the transmission load on the network.
Data Source
AI summary
A terminal device includes: a candidate acquiring unit configured to acquire reverse traveling candidate information including positional information and traveling direction information of a vehicle when a candidate determining unit configured to determine whether there is a likelihood that the vehicle is traveling in reverse determines that there is a likelihood that the vehicle is traveling in reverse; and a candidate transmitting unit configured to transmit the reverse traveling candidate information to a rearward server configured to determine whether the vehicle is traveling in reverse based on the reverse traveling candidate information.