Vehicle IC Control Flow Separation for Synchronized Autonomous Processing
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In autonomous driving systems, synchronization among multiple integrated circuit (IC) units and efficient data processing are challenging, leading to reduced operational reliability due to increased processing times and communication delays.
Innovation Solution
A vehicle control device configuration with separate control and data flows among IC units, where a third IC unit transmits control signals to the first and second IC units, facilitating synchronization and dynamic processing changes, while each unit reads programs from memory based on control signals to reduce activation time and power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple IC units are used for high-speed processing of large amounts of data, then processing capability is improved, but synchronization difficulty and communication time increase
Solution Approach 1:
The patent divides the vehicle control device into multiple independent IC units (first IC unit for image processing, second IC unit for recognition processing, third IC unit for judgment processing). Each IC unit processes specific tasks independently, enabling parallel processing of large amounts of data from cameras and sensors, thus improving overall processing capability while maintaining clear functional boundaries that facilitate synchronization.
2Productivity
If multiple IC units are used for high-speed processing, then processing capability is improved, but synchronization difficulty increases
Solution Approach 1:
The patent segments the control system into distinct IC units with clearly defined functional boundaries. The first IC unit handles image processing, the second handles recognition, and the third handles judgment. This segmentation allows each unit to operate independently with its own processing timeline, reducing the complexity of inter-unit synchronization while maintaining high processing capability through parallel operation.
3Reliability
If control signals are transmitted among IC units, then coordination is improved, but power consumption increases
Solution Approach 1:
The patent extracts and separates the control signal transmission function from the data processing function. The third IC unit (judgment processing) serves as a centralized control node that transmits control signals to the first and second IC units only when necessary for coordination. This extraction minimizes unnecessary communication overhead and reduces power consumption while maintaining the reliability needed for autonomous vehicle control.
Data Source
AI summary
A vehicle control device includes a plurality of IC units, while maintaining the operational reliability. The vehicle control device includes an IC unit for performing image processing on outputs from cameras; an IC unit for performing recognition processing of an external environment of the vehicle; and an IC unit for performing judgment processing for cruise control of the vehicle. A control flow is provided so as to allow the IC unit to transmit a control signal to the IC units and. The control flow is provided separately from a data flow configured to transmit the output from the cameras, the image data, and the external environment data.