In-Vehicle Notification System for Restricted Area Entry
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing in-vehicle apparatuses struggle to notify a predetermined party when a restricted area on a traveling route is included in a communication difficulty area, as they fail to consider restricted areas set as geofences, leading to difficulties in sending notifications.
Innovation Solution
The in-vehicle apparatus includes a navigator, an area information extractor, a determiner, a notifier, and a necessary time calculator, which guide the vehicle, extract communication difficulty areas, determine if restricted areas are within these areas, and issue preliminary notifications to the party before entering the communication difficulty area, ensuring timely notifications.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the in-vehicle apparatus uses wireless communication to notify a predetermined party of restricted area entry, then notification reliability is improved, but communication fails when the restricted area is located in a communication difficulty area (e.g., inside large tunnels)
Solution Approach 1:
The system performs preliminary actions by extracting communication difficulty areas from map data before the vehicle reaches them, and issues preliminary notifications to the server in advance. This allows the server to prepare for the restricted area entry, and enables the system to handle communication failures proactively rather than reactively.
Solution Approach 2:
The server acts as an intermediary that receives preliminary notifications, stores them, and sends actual notifications when the vehicle enters the restricted area. This intermediary approach allows the in-vehicle apparatus to communicate with the server even when direct communication to the final destination (notified party) would fail.
2Loss of time
If the in-vehicle apparatus issues notifications only when entering restricted areas, then notification timeliness is improved, but communication may fail before the vehicle actually enters the restricted area due to poor electric wave conditions
Solution Approach 1:
The system extracts communication difficulty areas from map data in advance and issues preliminary notifications before the vehicle enters these areas. This preliminary action ensures that communication attempts are made when electric wave conditions are still acceptable, rather than waiting until the vehicle is already in the restricted area where communication would fail.
Solution Approach 2:
The system uses feedback from map data about communication difficulty areas to adjust notification timing. By knowing in advance where communication will be difficult, the system can timing notifications to occur just before entering these areas, maximizing communication success probability while maintaining timeliness.
3Measurement precision
If the in-vehicle apparatus continuously monitors communication status to ensure timely notification, then notification accuracy is improved, but system complexity increases due to additional monitoring and determination mechanisms
Solution Approach 1:
The system performs preliminary extraction of communication difficulty areas from map data and pre-determines optimal notification timing points. This preliminary processing reduces the need for continuous real-time monitoring during actual travel, as the critical decision points have already been identified in advance.
Solution Approach 2:
The in-vehicle apparatus uses its own built-in navigator and map data to automatically determine communication difficulty areas and calculate optimal notification timing. This self-service approach eliminates the need for external monitoring systems or complex additional hardware, achieving accurate notification timing through the vehicle's existing capabilities.
Data Source
AI summary
An in-vehicle apparatus includes a navigator, an area information extractor, a determiner, a notifier, a travel information obtainer, and a necessary time calculator. The navigator guides a vehicle in accordance with data on a traveling route. The area information extractor extracts a communication difficulty area and a restricted area from the data on the traveling route. The determiner determines whether the restricted area is included in the communication difficulty area. When the restricted area is included in the communication difficulty area, the notifier issues a preliminary notification indicating that the vehicle is to enter the restricted area to a predetermined notified party. The travel information obtainer acquires travel information on the traveling route. The necessary time calculator calculates necessary time to be taken from issuing the preliminary notification to passing through the communication difficulty area. The preliminary notification includes time from the preliminary notification to a next notification.