Navigation Device Emergency Route to Evacuation Site
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Solution Overview
Problem
Existing navigation devices fail to provide a guidance route that avoids risky areas when a destination has not been set, leading to user anxiety during emergency situations.
Innovation Solution
A navigation device equipped with a current position obtainer, emergency alarm determiner, disaster information obtainer, and guidance route calculator that calculates a route to a registered evacuation site or the closest safe location when an emergency alarm is issued, even if no destination is set, using data from GPS and servers for real-time information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the navigation device waits for a destination to be set before providing guidance route, then the route planning can be more accurate, but the user experiences anxiety during emergency situations when no destination is set
Solution Approach 1:
The navigation device performs preliminary action by automatically setting the evacuation site as the destination when an emergency alarm is detected and no destination is set. This preliminary destination setting enables the system to immediately calculate and provide a safe guidance route avoiding risky areas, thereby reducing user anxiety while maintaining route planning accuracy through the use of pre-registered evacuation site information.
2Adaptability or versatility
If the navigation device provides guidance route to pre-set destination only, then the route can be optimized for user's purpose, but the device cannot provide automatic safe route during emergency when destination is not set
Solution Approach 1:
The navigation device implements self-service by automatically detecting emergency alarms, acquiring disaster information including risky area data, and autonomously setting the evacuation site as the destination without requiring user input. This self-service capability enables the system to adapt to emergency situations and provide reliable safe guidance routes automatically, enhancing both emergency response capability and route safety guarantee.
3Extent of automation
If the navigation device requires manual destination setting, then the user has control over the route, but the system cannot automatically respond to emergency alarms with safe routes
Solution Approach 1:
The navigation device employs feedback mechanism by continuously monitoring for emergency alarm conditions and automatically adjusting the destination setting based on the detected emergency state. When an emergency alarm is detected, the system feedbacks by automatically setting the evacuation site as the destination, enabling automatic emergency response while maintaining user control through the pre-registered evacuation site options.
Data Source
AI summary
A navigation device includes a current position obtainer, an emergency alarm determiner, a disaster information obtainer, a guidance route calculator, and a display. The current position obtainer acquires a vehicle current position. The emergency alarm determiner determines whether an emergency alarm has been issued. The disaster information obtainer acquires disaster information including at least risky area information when the emergency alarm determiner determines that the emergency alarm has been issued. The guidance route calculator calculates, based on the disaster information, a guidance route to a destination avoiding the risky area. The display displays information on the guidance route calculated by the guidance route calculator. The guidance route calculator calculates the guidance route by setting an evacuation site registered in advance by a user as the destination when: the emergency alarm determiner determines that the emergency alarm has been issued; and the destination has not been set.