Controller Sensor Bus with Dynamic Burst-to-Broadcast Transmission
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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, high costs, and unsecured data, failing to efficiently handle diverse data types like sensor data, motor control messages, and internet packets across the network.
Innovation Solution
A machine automation system featuring a controller and sensor bus with a central processing core and multi-medium transmission intranet that implements a dynamic burst-to-broadcast transmission scheme, encapsulating data into generic encapsulation mode packets for standardized transmission across different networks, supporting various data formats and protocols, and using a multi-layered addressing scheme to facilitate efficient data communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If existing copper cabling systems are used for data transmission, then electromagnetic interference is significant, but shielding adds expensive cost and complexity
Solution Approach 1:
The patent replaces traditional copper-based electrical cabling systems with optical fiber transmission media. This substitution eliminates electromagnetic interference inherent in copper systems while reducing the need for expensive shielding and complex EMI management, directly resolving the contradiction between EMI protection and system complexity/cost.
2Productivity
If traditional network architectures are used, then bandwidth is low and latency is high, but upgrading to high-speed networks increases cabling complexity and cost
Solution Approach 1:
The patent creates a unified network architecture where optical fiber serves multiple functions: high-speed data transmission, long-distance communication, and integration of diverse protocols (Ethernet, CAN, LIN, FlexRay). This multi-functional approach achieves high bandwidth and low latency without proportionally increasing cabling complexity, as the optical infrastructure replaces rather than supplements existing systems.
3Adaptability or versatility
If multiple data formats and protocols are supported across the network, then adaptability is improved, but system integration becomes complex
Solution Approach 1:
The patent introduces protocol conversion devices and gateway nodes that act as intermediaries between different data formats and protocols. These intermediaries translate and adapt messages between Ethernet, CAN, LIN, FlexRay, and other automotive protocols, enabling multi-protocol support while keeping individual system components relatively simple and reducing overall integration complexity.
4Length of stationary object
If data is transmitted across long distances, then network reach is improved, but signal degradation and interference increase
Solution Approach 1:
The patent replaces electrical signal transmission through copper cables with optical signal transmission through fiber optic cables. Optical signals do not suffer from the same electromagnetic interference and signal degradation issues as electrical signals, enabling reliable data transmission over much longer distances without repeaters or signal boosters, thus resolving the contradiction between network reach and transmission reliability.
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.