Navigation Device Guide Point Key Arrow Display
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Solution Overview
Problem
Conventional navigation devices do not effectively provide drivers with information about the distance and direction of upcoming intersections until the vehicle is close, which can be problematic in heavy traffic situations where lane changes are difficult, leading to reduced visibility and functionality of the guidance route on the screen.
Innovation Solution
A navigation device that includes a guide point display key with an arrow indicating the travel direction, which is activated or deactivated based on the map scale and proximity of the guide point to the current vehicle position, allowing for dynamic map scaling and minimizing the reduction of the main map display area.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If guidance information of the guide point is always displayed along with the map around the vehicle, then the driver can know the distance and travel direction at the guide point in advance, but the display area for the map around the vehicle is reduced
Solution Approach 1:
The patent merges the guide point display key with the touch panel operation interface, integrating multiple functions into a single display element. The guide point display key serves both as operational control and as a container for displaying guide point information (distance and travel direction), thereby providing necessary information without requiring separate display areas that would reduce the map visibility.
Solution Approach 2:
The guide point display key is designed to perform multiple functions: it acts as a touch panel operation key for map scale control, displays the distance to the guide point, shows the travel direction at the guide point using an arrow, and can trigger display of the guide point map when activated. This multi-functionality allows comprehensive information presentation within a compact interface element.
2Ease of operation
If a key for instructing to display the map around the guide point is displayed on the display portion, then the driver can access guide point information, but the display area for the map around the vehicle is reduced
Solution Approach 1:
The patent combines the operation key functionality with the guide point information display by making the guide point display key itself touch-sensitive. When the driver touches this key, it not only displays guide point map information but also serves as the operational interface for map scale control, eliminating the need for separate control keys that would occupy additional display area.
Solution Approach 2:
The guide point display key automatically provides relevant information (distance and travel direction) without requiring separate controls or commands. The key is designed to be self-contained, displaying essential guide point data and responding to touch inputs to show the guide point map, thereby serving multiple purposes within a single interface element.
Data Source
AI summary
A navigation device is provided that presents a travel direction of a vehicle at a guide point along with a map around the vehicle, without significantly reducing a display area of the map around the vehicle. The navigation device of the present invention includes current position locating means 9 for locating the current position of a vehicle, storage means 25 for storing map data, display means 19 for displaying a guidance screen that includes a map 41 around the current vehicle position with use of the map data, and operation means formed by a plurality of keys 45, 49, 65, 67 and 69 displayed on the display means 19 and a touch panel 31. The guidance screen includes a guide point display key 49, the guide point display key 49 causing a map 41 around a guide point that the vehicle is to pass through next, out of guide points that are present on the guidance route and where a travel direction of the vehicle is guided, to be displayed on the display means 19 instead of the guidance screen, and an arrow 51 is added to the guide point display key 49, the arrow 51 indicating the travel direction of the vehicle at the guide point that the vehicle is to pass through next.