Vehicle Guidance Terminal Using Travel Environment Data
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Solution Overview
Problem
Existing vehicle guidance systems require the leading vehicle to compute and transmit a recommended route, which is not feasible if the leading vehicle lacks this capability, limiting their functionality in group or convoy scenarios.
Innovation Solution
A guidance system that allows vehicles to transmit and receive travel environment information, enabling the following vehicle to determine and display course changes without needing to compute or display route data, simplifying the system's construction and operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the leading vehicle computes and transmits the recommended route, then the following vehicles can navigate to the destination, but the system cannot be adopted if the leading vehicle does not have the function of computing the recommended route
Solution Approach 1:
Instead of having the leading vehicle compute the recommended route and transmit it to following vehicles, the invention inverts the approach by having each following vehicle independently compute its own recommended route based on received travel environment information. This inversion allows the system to function regardless of whether the leading vehicle has route computation capabilities.
Solution Approach 2:
Each following vehicle serves itself by independently computing its own recommended route using the travel environment information received from the leading vehicle. This self-service approach eliminates the dependency on the leading vehicle's route computation function and simplifies the overall system construction.
2Reliability
If the leading vehicle computes and transmits the recommended route, then the following vehicles receive navigation guidance, but the communication and processing costs increase
Solution Approach 1:
The route computation task is segmented from the leading vehicle and distributed to each following vehicle. Instead of one vehicle computing and transmitting the complete route, each following vehicle computes its own route segment independently based on received travel environment information, reducing communication overhead and processing concentration.
Solution Approach 2:
The route computation function is extracted from the leading vehicle and assigned to individual following vehicles. This extraction eliminates the need for the leading vehicle to perform complex route computations and transmit detailed route data, thereby reducing communication and processing energy consumption in the overall system.
Data Source
AI summary
A guide system terminal device is provided to facilitate group operation vehicles. The guide system terminal device has a transceiver that receives the traveling environment information from another vehicle, such as for the turn signal, vehicle speed, running position, a road change judgment module that judges course changes by the other vehicle based on the traveling environment information of the other vehicle, and a user interface that outputs the judgment result obtained by road change judgment module. For example, the road change judgment module judges a left/right turn to have occurred when the blinker information acquired by turn signal sensor lasts longer than a prescribed time, and when the maximum value of the change in vehicle speed exceeds a prescribed level.