Vehicle Camera Image Timing to Prevent Bandwidth Overload
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Solution Overview
Problem
The existing vehicular image processing systems face bandwidth limitations when transmitting recognition images from multiple camera units to a recognition unit, leading to potential communication band overload and reduced reliability in receiving recognition images.
Innovation Solution
The system adjusts the transmission timings of recognition images from multiple camera units to the recognition unit, ensuring they do not overlap, and allows each camera unit to acquire and transmit images at different times, thereby managing bandwidth effectively and ensuring reliable image reception.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If recognition images from multiple camera units are transmitted simultaneously to the recognition unit, then the recognition process can use images from all camera units, but the maximum bandwidth usage exceeds the communication band capacity causing transmission failure
Solution Approach 1:
The patent applies periodic action by transmitting recognition images from multiple camera units at different time intervals rather than simultaneously. The communication unit transmits images sequentially, spacing out transmission timing to ensure that the instantaneous bandwidth usage does not exceed the communication band capacity, thereby preventing transmission failures while maintaining reliable image delivery to the recognition unit
Solution Approach 2:
The patent segments the transmission process by dividing the simultaneous transmission of multiple images into separate, staggered transmission events. Each camera unit's images are transmitted at different time points, breaking down the overloaded simultaneous transmission into manageable segments that fit within the communication band's capacity constraints
2Reliability
If the maximum bandwidth usage is reduced by staggering transmission timings, then communication band overload is prevented, but the transmission time for all images increases
Solution Approach 1:
The patent implements partial action by transmitting only the necessary number of images at each time interval rather than all images simultaneously. The communication unit staggers transmissions so that images are sent in batches over time, ensuring that each transmission batch remains within bandwidth limits while completing the overall transmission task efficiently without unnecessary delays
Data Source
AI summary
A vehicular image processing system includes: a plurality of first camera units configured to acquire a recognition image which is used for a recognition process of recognizing an object present in a nearby area of a vehicle; a recognition unit configured to perform the recognition process; and a communication unit communicatively connected to the first camera units and the recognition unit and configured to receive the recognition images transmitted from the first camera units and to transmit the recognition images to the recognition unit. The communication unit is configured to transmit the recognition images to the recognition unit such that timings of transmission of the recognition images received from the plurality of first camera units to the recognition unit differ. The recognition unit is configured to perform the recognition process using the recognition images received from the communication unit.