Vehicular Display Synchronization via Preliminary Notification
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Solution Overview
Problem
Existing vehicular display systems face challenges in synchronizing image display and notification by audio or light, due to potential delays in communication between the display device and the drawing device, leading to time differences between image display and accompanying notifications.
Innovation Solution
A vehicular display device configuration that includes an image display unit, a notification unit, an image notification determination unit, a drawing request unit, a correspondence notification determination unit, a correspondence identification unit, and a notification execution unit, which requests the drawing device to draw images corresponding to the vehicle's state and executes notifications in synchronization with image display, using image identification information to determine the appropriate notification actions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If the vehicular display device requests the drawing device to draw an image, then the image can be displayed at the display unit, but there may be variation in time from drawing request to image display due to unexpected delayed communication
Solution Approach 1:
The system performs preliminary actions by determining the image notification state and preparing notification actions before the image is actually displayed. The notification execution unit is configured to execute notification actions in synchronization with image display by anticipating the display timing and preparing corresponding audio or light notifications in advance, thus compensating for communication delays between the display device and drawing device.
2Reliability
If the notification unit executes notification by audio or light, then effective notification can be provided to the driver, but time differences may occur between notification and image display due to communication delays
Solution Approach 1:
The system uses feedback mechanisms where the notification execution unit continuously monitors the image notification state determined by the image notification determination unit. Based on this feedback loop, the system adjusts the timing of audio or light notifications to maintain synchronization with image display, ensuring that notifications remain effective and accurately timed even when communication delays occur between the display device and drawing device.
3Loss of time
If the system determines image notification state and executes synchronized notification, then time differences between image display and notification can be inhibited, but the device complexity increases due to multiple determination and execution units
Solution Approach 1:
The system merges multiple functions into integrated units where the notification execution unit combines image notification state determination with notification execution. By consolidating these functions, the system reduces the number of separate determination and execution units needed, thereby simplifying the overall device architecture while still achieving synchronized notification with image display and eliminating time differences.
Data Source
AI summary
A vehicular display device is used in a vehicle and displays an image received from a drawing device. The vehicular display device includes an image display unit, a notification unit, an image notification determination unit, a drawing request unit, a correspondence identification unit, and a notification execution unit. The image display unit executes notification by displaying the image. The notification unit executes notification by at least one of audio and light. The image notification determination unit determines whether the vehicle is in an image notification state. The drawing request unit requests the drawing device to draw the image corresponding to the image notification state. The correspondence identification unit identifies the correspondence notification action. The notification execution unit causes the notification unit to execute the correspondence notification action.