Dynamic Guide Arrow Update Frequency for Navigation Viewability
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Solution Overview
Problem
Conventional navigation systems are unable to dynamically adjust the frequency of updating the guide arrow, leading to poor viewability and increased processing load, as the frequency is either too low when far from an intersection or too high when not needed, such as when far from the destination.
Innovation Solution
The navigation apparatus dynamically sets the frequency of updating the guide arrow based on the distance to the intersection, rudder angle, and road shape, increasing the frequency as the vehicle approaches the intersection to improve viewability and reduce processing load.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If the guide arrow is updated at a low frequency, then the processing load is reduced, but the viewability of the guide display deteriorates when the vehicle is near an intersection
Solution Approach 1:
The patent applies dynamics by making the guide arrow update frequency variable rather than fixed. The control section dynamically adjusts the update frequency based on the distance to the intersection and the vehicle's traveling state. When the vehicle is far from the intersection, updates occur at a lower frequency to reduce processing load. When the vehicle approaches the intersection or changes direction, the update frequency increases automatically to maintain accurate guide arrow positioning and improve viewability.
2Manufacturing precision
If the guide arrow is updated at a high frequency, then the viewability of the guide display is improved, but the processing load increases unnecessarily when the vehicle is far from an intersection
Solution Approach 1:
The patent implements parameter changes by adjusting the update frequency parameter of the guide arrow based on varying operational conditions. The control section monitors the distance to the intersection and the vehicle's traveling state, then modifies the update frequency parameter accordingly. This allows the system to optimize between viewability and processing load by changing the update frequency parameter to match the current driving context.
3Device complexity
If the guide arrow update frequency is set constantly, then the system complexity is reduced, but the adaptability to different driving situations deteriorates
Solution Approach 1:
The patent applies feedback by continuously monitoring the vehicle's distance to the intersection and traveling state, then using this feedback information to adjust the guide arrow update frequency. The control section receives feedback from the position detection and distance calculation, and automatically modifies the update frequency in response to changing driving conditions. This feedback mechanism enables the system to adapt to different driving situations without requiring complex manual configuration.
Data Source
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AI summary
Provided is a navigation apparatus operable to, in route guidance using a photographed mage, dynamically set a frequency of updating a guide arrow in accordance with circumstances. The navigation apparatus performs the route guidance by displaying the photographed image, comprising: a searching section (7) for searching a route from a current position to a destination; and a drawing section (11) for displaying the guide arrow which indicates the route searched by the searching section (7) such that the guide arrow is superimposed on the photographed image, wherein the drawing section (11) dynamically sets a frequency of updating a display of the guide arrow based on a predetermined condition.