Vehicular Vision System Incident Recording Logic
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Solution Overview
Problem
Current vehicle vision systems lack an efficient method to record and save image data, particularly in response to specific events or user inputs, which limits their ability to capture and store critical incident data effectively.
Innovation Solution
A vehicle vision system that includes a camera module attached to the windshield, capable of capturing and recording image data using a control unit to manage a recording device, which can be triggered by user inputs or events such as collisions, lane departures, or voice commands, allowing for continuous or event-specific recording and saving of video images.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If continuous loop recording is implemented, then incident data capture completeness is improved, but storage space consumption increases
Solution Approach 1:
The system performs preliminary action by continuously recording image data in a loop before incidents occur, ensuring that data is already captured and ready for review. The continuous loop recording mechanism pre-positions data in storage, so when an incident happens, the relevant footage is immediately available without requiring real-time decision-making about what to record.
Solution Approach 2:
The system implements discarding and recovering by overwriting older image data with newer data in the continuous loop recording process. When storage is full, the oldest recordings are automatically discarded and replaced by newer footage, ensuring that the most relevant recent data is preserved while managing limited storage capacity.
2Quantity of substance
If event-triggered recording is implemented, then storage space efficiency is improved, but response time to critical events may increase
Solution Approach 1:
The system performs preliminary action by continuously recording image data before incidents occur, ensuring that data is already captured and ready for review. The continuous loop recording mechanism pre-positions data in storage, so when an incident happens, the relevant footage is immediately available without requiring real-time decision-making about what to record.
Solution Approach 2:
The system implements feedback by monitoring vehicle events and using this information to control the recording process. When specific events are detected (such as collisions or abnormal braking), the system provides feedback to trigger immediate recording, ensuring that critical events are captured while maintaining storage efficiency through event-driven activation.
3Ease of operation
If manual recording activation is implemented, then user control over recording is improved, but operational complexity increases
Solution Approach 1:
The system implements self-service by enabling automatic event detection and recording without requiring manual user intervention. The system monitors vehicle events autonomously and triggers recording automatically when predefined conditions are met, reducing operational complexity while maintaining user control through configurable event thresholds and recording parameters.
Solution Approach 2:
The system implements universality by integrating multiple recording modes (continuous loop, event-triggered, manual activation) into a single unified system. This multi-functional approach allows the same recording device to handle various scenarios through different activation methods, improving ease of operation by providing multiple control options while managing complexity through centralized control logic.
Data Source
AI summary
A vehicular vision system includes a camera disposed at a vehicle and viewing forward of the vehicle. Image data captured by the camera is processed at an electronic control unit (ECU) for at least two driving assist systems of the vehicle. Image data captured by the camera is saved in volatile memory of the ECU. Responsive to occurrence of at least one emergency event, image data that is saved in volatile memory of the ECU for a first period of time prior to the occurrence of the at least one emergency event is moved to non-volatile memory of the ECU and image data captured by the imaging array of the camera for a second period of time after occurrence of the at least one emergency event is saved in the non-volatile memory. The at least one emergency event includes a deceleration of the equipped vehicle of 0.4 g or more.