Controller Sensor Bus with Multi-Layer Security Architecture
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Solution Overview
Problem
Current network architectures in machine automation, such as those for self-driving cars and factory automation, face challenges with high latency, low bandwidth, complex cabling, significant electromagnetic interference (EMI), high costs, and security issues, particularly in handling sensor data like camera and LIDAR data across the network to CPU cores.
Innovation Solution
A machine automation system featuring a controller and sensor bus with a central processing core and a multi-medium transmission intranet that implements a dynamic burst-to-broadcast transmission scheme, incorporating a multi-layer security architecture with two-way authentication, encryption, and behavior monitoring to ensure secure and efficient data transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If traditional copper cabling systems are used for network transmission, then electromagnetic interference (EMI) can be reduced through shielding, but the system cost increases and cabling complexity increases
Solution Approach 1:
The patent replaces traditional copper-based electrical transmission systems with optical transmission systems using light instead of electrical signals. This substitution eliminates electromagnetic interference inherent in copper cabling while reducing cabling complexity through simpler optical connectors and transmission media, achieving both goals simultaneously.
Solution Approach 2:
The invention changes the fundamental transmission parameter from electrical signals in copper conductors to optical signals in optical media. This parameter change transforms the physical nature of signal transmission, eliminating EMI issues associated with electrical conductors while enabling simpler, lighter, and more flexible optical cabling systems.
2Speed
If existing network architectures are used to handle sensor data, then system integration is maintained, but data transmission speed is insufficient and latency is high
Solution Approach 1:
The patent segments the network architecture into hierarchical layers including optical transport layer, switching layer, and processing layer. This segmentation allows high-speed optical transmission to handle bulk data movement while specialized switching and processing units manage data routing and integration, achieving high speed without overwhelming system integration complexity.
Solution Approach 2:
The invention introduces optical switches and transceivers as intermediary devices that bridge traditional electrical systems with high-speed optical transmission. These intermediaries convert electrical signals to optical signals for high-speed transmission and back to electrical signals for processing, enabling speed improvement while maintaining compatibility with existing systems.
3Reliability
If comprehensive security measures including two-way authentication and encryption are implemented, then security is enhanced, but processing overhead increases
Solution Approach 1:
The patent implements preliminary security measures by pre-establishing authentication credentials and encryption keys in secure memory devices before system operation. Two-way authentication is performed during initial device pairing, and encryption contexts are pre-configured, allowing security verification to occur before data transmission begins, thus reducing real-time processing overhead.
Solution Approach 2:
The invention enables security mechanisms to serve themselves through automated authentication protocols and self-managed key distribution systems. Devices automatically perform mutual authentication and establish encrypted channels without requiring continuous external verification, reducing the processing burden on central controllers while maintaining strong security.
Data Source
AI summary
A machine automation system for controlling and operating an automated machine. The system includes a controller and sensor bus including a central processing core and a multi-medium transmission intranet for implementing a dynamic burst to broadcast transmission scheme where messages are burst from nodes to the central processing core and broadcast from the central processing core to all of the nodes.