Vehicle Stop Reporting System Using Area-Based Signal Routing
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Solution Overview
Problem
Existing vehicle notification systems, such as those using reflectors or smoke pots, are inadequate for promptly informing following vehicles of a stopped vehicle, potentially leading to accidents due to the time required for preparation and notification.
Innovation Solution
A reporting system comprising an information processing system on vehicles and a server device that wirelessly communicate, where the system acquires traveling area information, detects vehicle stops, and transmits signals to specify stop positions, allowing for prompt notification of adjacent vehicles without the need for individual position determination.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If conventional notification methods (reflector or smoke pot) are used, then notification can be provided to following vehicles, but the time required for preparation and notification is delayed
Solution Approach 1:
The system performs preliminary actions by continuously monitoring vehicle stop status and pre-calculating notification targets before actual notification is needed. When a vehicle stops, the server device already has the information ready to immediately notify following vehicles, eliminating preparation time delays inherent in conventional methods that require manual deployment of reflectors or smoke pots.
Solution Approach 2:
The invention replaces the mechanical system of manually deploying physical notification devices (reflectors, smoke pots) with an electronic communication system. The server device transmits stop information electronically to following vehicles via wireless communication, substituting mechanical preparation and deployment with automated digital signaling that occurs instantaneously.
2Measurement precision
If GPS position signals are used to determine vehicle positions, then positional relationships between vehicles can be determined, but individual position determination increases processing load
Solution Approach 1:
The server device acts as an intermediary that centralizes the complex processing of position determination and notification target identification. Instead of each vehicle independently calculating positions and determining notification targets (which would increase individual processing loads), the server receives stop information and autonomously determines which following vehicles should be notified, distributing only the final notification decisions to relevant vehicles.
Solution Approach 2:
The server device performs multiple functions: it receives stop information from any vehicle, determines positional relationships between multiple vehicles, identifies appropriate notification targets, and transmits notifications. This multi-functional approach consolidates processing complexity into a single centralized system rather than requiring each vehicle to perform all these functions individually.
Data Source
AI summary
An information processing system acquires traveling area information, and transmits an entry signal to a server device when determined that a vehicle has entered a specific range. The entry signal includes traveling area information and specifying information for specifying the information processing system. When detecting a stop of traveling of the vehicle, the system transmits a first stop signal including the traveling area information to the server device. The server device stores the traveling area information and the specifying information, included in the entry signal, in association with each other when receiving the entry signal. The server device generates a second stop signal based on the first stop signal. The server device specifies the information processing system based on the travelling area information in the first stop signal, the stored traveling area information and the stored specifying information, and transmits the second stop signal to the specified information processing system.