Map-Based Vehicle Track Display for Video Range Adjustment
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Solution Overview
Problem
Existing video management systems face challenges in finely adjusting the range for acquiring videos from a traveling track of a vehicle, leading to increased time and effort in video selection.
Innovation Solution
A display device that allows for fine adjustment of a video acquisition section by displaying track points representing vehicle positions with a first time interval, enabling selection of start and end points, and dynamically adjusting the second time interval based on vehicle speed and traffic conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the interval between track items is narrowed to enable fine adjustment of the designated section, then the measurement precision of the designated section is improved, but the time and effort for considering an item to be selected increases
Solution Approach 1:
The patent divides the track items into two distinct groups: first track items displayed at a first time interval for initial selection, and second track items displayed at a second time interval for fine adjustment. This segmentation allows users to perform coarse selection first (reducing time) and then refine the selection (improving precision) without being overwhelmed by all fine-grained items at once.
Solution Approach 2:
The system performs preliminary action by first displaying track items at a coarser first time interval, allowing users to quickly identify and select a general area of interest. Only after this preliminary selection does the system refine the display to show second track items at a finer second time interval, enabling precise adjustment without the time cost of evaluating all fine-grained items from the beginning.
2Manufacturing precision
If the interval between track items is narrowed to enable fine adjustment of the designated section, then the manufacturing precision of video acquisition range is improved, but the ease of operation deteriorates
Solution Approach 1:
The patent segments the track display into two levels: first track items at a first time interval for easy initial selection, and second track items at a second time interval for precise adjustment. This two-level segmentation maintains ease of operation by providing a user-friendly initial view while enabling precise control through the second level of detail.
Solution Approach 2:
The system dynamically adjusts the display based on user interaction. When a first track item is selected, the system transitions to displaying second track items at a finer interval around the selected area. This dynamic adaptation allows the interface to automatically provide the appropriate level of detail based on the current operational context, maintaining both ease of operation and precision.
Data Source
AI summary
Fine adjustment of a section is enabled when designating the section from a movement track of an object displayed on a map, and time and effort for the adjustment is reduced, so that usability is improved. Items each representing a position of the object with a first time interval are displayed as the track of the object on the map, and any one of the items is set as a first selection point. A plurality of items each representing the position of the object with a second time interval longer than the first time interval is extracted as second selection point candidates from a time associated to the first selection point having been set, and the extracted items are displayed in a selectable state. After setting the first selection point, a first selection point setting unit receives correction of the first selection point to another item in units of the first time interval. A second selection point candidate display unit extracts again, as the second selection point candidates, a plurality of items each representing the position with a second time interval from a time associated to the corrected first selection point.