Bus System Error Data Transmission via Phased Protocol
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Solution Overview
Problem
Conventional bus systems in electrical or electronic systems require additional transmission lines for error data transmission, leading to increased complexity and cable requirements, especially in chain-like structures where error data needs to be propagated efficiently across multiple modules.
Innovation Solution
A method utilizing a chain-like bus system with differential transmission lines and Level Shifters to transmit error data in phases, where a broadcast request and response frames are used to identify error types and locations, allowing efficient propagation of error information through the system without additional dedicated lines.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate transmission lines are provided to directly connect each component with the central microprocessor for error data transmission, then error data transmission reliability is improved, but device complexity and cable requirements increase
Solution Approach 1:
The patent merges the error data transmission function with the existing data bus by utilizing idle time slots in the data transmission protocol. Error data from any component is transmitted through the shared data bus rather than requiring dedicated separate transmission lines, thus reducing cable requirements while maintaining transmission reliability through protocol-based error handling mechanisms
Solution Approach 2:
The data bus is designed to serve multiple functions: normal data transmission and error data transmission. By implementing a universal bus system that can handle both types of data through protocol differentiation, the patent eliminates the need for separate dedicated error transmission lines, reducing overall system complexity while maintaining reliability
2Measurement precision
If additional transmission lines are added for error data propagation in chain-like structures, then error detection precision is improved, but device complexity increases
Solution Approach 1:
The patent implements a feedback mechanism where error data is propagated bidirectionally through the chain-like bus structure. Each component can receive and forward error information from neighbors, creating a feedback loop that enables precise error localization without requiring additional dedicated transmission lines, thus maintaining detection precision while avoiding increased complexity
Solution Approach 2:
The system uses periodic error polling and phased error propagation through the chain structure. Error data is transmitted in phases through the existing bus, with each component sequentially processing and forwarding error information, enabling precise error detection through time-multiplexed communication rather than spatial expansion
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables efficient transmission of error data across multiple modules in a chain-like structure, reducing the need for additional cables and simplifying error detection and localization within the system, while maintaining galvanic decoupling between bus segments.
Implementation Method 1
Level Shifters to transmit error data in phases, where a broadcast request and response frames are used to identify error types and locations
Data Source
AI summary
The invention relates to an electrical or electronic system, and more specifically, to a system with a bus, and a method to transmit data, in particular error data over a bus system. According to an embodiment, a method to transmit error data over a bus system that connects a plurality of modules/components/elements of an electronic system in a chain-like structure comprises in a first phase, transmitting information regarding what kinds of errors have occurred in the system, and in a second phase, transmitting information regarding where in the system an error has occurred.