Automotive Interface System-on-Chip for Sensor Synchronization
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The increasing number of sensors in vehicles, such as camera, lidar, and radar systems, poses challenges in data distribution, processing, and safety due to bandwidth requirements, necessitating improved data management and synchronization.
Innovation Solution
An interface system on a chip (SoC) that preprocesses, synchronizes, and distributes sensor data using various protocols, including PCIe and UCIe, with input and output interfaces for different sensors, and includes preprocessing units, synchronization units, and safety units to ensure reliable data handling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If sensor data is distributed and processed using multiple separate systems (PCIe switches, performance SoCs), then data processing capability is improved, but system complexity and power consumption increase
Solution Approach 1:
The patent combines multiple previously separate functions (data distribution, preprocessing, synchronization, and processing) into a single integrated interface system on a chip. This consolidation maintains high data processing capability while reducing system complexity by eliminating the need for multiple separate PCIe switches and performance SoCs.
Solution Approach 2:
The interface system on a chip is designed to perform multiple functions simultaneously: it acts as a data distribution hub, preprocessing unit, synchronization center, and processing engine. This multi-functionality allows a single component to replace multiple specialized systems, reducing overall system complexity while maintaining productivity.
2Speed
If sensor data is processed with high bandwidth in real-time, then processing speed is improved, but power consumption increases
Solution Approach 1:
The interface system performs preliminary preprocessing of sensor data immediately upon reception, before full processing is required. By preparing data in advance (filtering, formatting, synchronization), the system enables faster subsequent processing while reducing the computational power needed during critical real-time operations, thus lowering overall power consumption.
Solution Approach 2:
The processing pipeline is segmented into distinct stages within the interface system: data reception, preprocessing, synchronization, and output. This segmentation allows each stage to be optimized independently for efficiency, enabling real-time processing speeds while minimizing the energy required at each step through targeted optimizations.
3Measurement precision
If sensor data from multiple sensors is synchronized in a single component, then synchronization accuracy is improved, but device complexity increases
Solution Approach 1:
The patent integrates the synchronization function directly into the interface system on a chip, combining it with data reception, preprocessing, and distribution functions. This merging approach achieves high synchronization accuracy by centralizing timestamp assignment and data alignment in a single component, while the integrated nature of the system prevents complexity from increasing proportionally.
4Productivity
If preprocessing is performed in the interface system, then data processing efficiency is improved, but the interface system complexity increases
Solution Approach 1:
The interface system is designed as a multi-functional component that inherently includes preprocessing capabilities alongside data distribution and synchronization functions. By making preprocessing an integrated part of the interface system's universal functionality, the patent improves overall data processing efficiency while the complexity increase is offset by the consolidation of multiple functions into a single standardized component.
Data Source
AI summary
An interface system on a chip includes numerous input interfaces configured for at least two different communication protocols and configured to receive sensor data from numerous sensors, a preprocessing unit for processing sensor data, and at least one output interface configured for a specific communication protocol for outputting the sensor data.