Parking Speed Feedback via Dynamic Auxiliary Lines
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Solution Overview
Problem
Drivers have difficulty recognizing appropriate traveling speed during parking, as existing systems do not effectively convey this information.
Innovation Solution
A display control apparatus and method that superimposes predicted course lines and auxiliary lines on rear camera video images, changing the display forms of auxiliary lines based on the vehicle's speed relative to the parking section boundaries to intuitively indicate safe parking speeds.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If predicted track lines are displayed on the display unit, then the driver can see the travel path, but the driver cannot recognize whether the traveling speed is appropriate
Solution Approach 1:
The display system segments speed information from the track line display by introducing separate auxiliary lines that indicate speed status. The auxiliary lines are divided into multiple segments (first, second, third auxiliary lines) that collectively convey speed information without complicating the main track line display.
Solution Approach 2:
Auxiliary lines serve as an intermediary element between the track line display and speed information. These auxiliary lines mediate the communication of speed status to the driver without requiring direct integration of speed sensors or complex speed display mechanisms.
2Loss of information
If auxiliary lines are added to indicate speed information, then speed recognition is improved, but the display system becomes more complex
Solution Approach 1:
The auxiliary lines apply local quality changes to convey speed information. Each auxiliary line has specific display characteristics (visibility, position) that are locally adjusted based on speed conditions, allowing speed feedback without requiring complex display elements throughout the entire system.
Solution Approach 2:
The system uses display form changes (analogous to color changes in TRIZ) to indicate speed status. The auxiliary lines change their display characteristics between visible and invisible states based on whether the vehicle speed is above or below the threshold, providing speed feedback through simple visual changes.
3Measurement precision
If the display form of auxiliary lines changes based on speed, then speed recognition is enhanced, but the information processing becomes more complex
Solution Approach 1:
The system changes the display parameter (visibility) of auxiliary lines based on the speed parameter. When vehicle speed exceeds the threshold, the auxiliary lines become invisible; when speed is at or below the threshold, they become visible. This simple parameter change provides precise speed measurement feedback without complex control logic.
Data Source
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AI summary
A display control apparatus (100) according to an embodiment includes: a video image data acquisition unit (106) configured to acquire video image data from a camera (2); a predicted course line generator (109) configured to generate superimposed data; a display video image generator (110) configured to generate display video image data in which the superimposed data is superimposed on the video image data; and a display controller (120) configured to cause a display unit (50) to display a video image by the display video image data. The display controller (120) causes the display unit (50) to display at least one of (a) and (b). The display of the (a) is to display the superimposed data in such a way that display forms of the plurality of auxiliary lines (62) are changed sequentially from a far side of the vehicle at a predetermined time interval, and the display of the (b) is to display the auxiliary area (65) in such a way that the predetermined distance decreases with time.