Differential Data Bus Fault Tolerance via Voltage Control
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Solution Overview
Problem
Faults in differential data bus lines lead to significant transmission errors, reducing the utilization of data buses to less than 10% of their original capacity, as existing methods fail to effectively maintain error-free communication.
Innovation Solution
Incorporating voltage control units that provide a reference voltage to maintain the voltage on one data bus line above and below the reference voltage, preventing signal distortions and errors by controlling the maximal and minimal voltage levels, thereby ensuring fault-tolerant communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If voltage control units are added to maintain voltage levels, then communication reliability is improved, but device complexity increases
Solution Approach 1:
Voltage control units are introduced as intermediary devices between the differential data bus lines and the reference voltage. These units actively regulate and maintain voltage levels by comparing bus voltages against a reference and adjusting accordingly, thereby preventing voltage excursions that would cause communication errors without requiring complete system redesign
Solution Approach 2:
The invention changes the voltage parameter control mechanism by introducing active voltage regulation through voltage control units. These units monitor and adjust voltage levels in real-time, transforming the passive voltage distribution into an actively controlled parameter, which enables the system to maintain reliable communication even under fault conditions
2Reliability
If voltage control units are added to maintain voltage levels, then transmission error rate is reduced, but the number of components increases
Solution Approach 1:
Voltage control units serve as intermediary components that mediate between the differential data bus lines and the reference voltage. Each unit actively regulates voltage levels by comparing bus voltages against a reference and adjusting accordingly, preventing voltage excursions that would cause transmission errors
Solution Approach 2:
The voltage control units perform preliminary action by proactively maintaining voltage levels within acceptable ranges before faults occur. The units continuously monitor and adjust voltages to prevent excursions that would cause errors, rather than reacting after errors have occurred
3Reliability
If voltage control units are added to maintain voltage levels, then data bus functionality is maintained during faults, but system configuration complexity increases
Solution Approach 1:
Voltage control units act as intermediaries that isolate the differential data bus lines from the effects of faults. By regulating voltage levels and preventing fault propagation, these units enable the data bus to maintain functionality even when faults occur in the bus lines or connectors
Solution Approach 2:
The voltage control units provide beforehand cushioning by continuously maintaining voltage levels within safe operating ranges. This preemptive voltage regulation cushions the system against the harmful effects of potential faults, ensuring continuous data bus functionality without requiring complex fault detection or recovery mechanisms
Data Source
AI summary
Described is a differential data bus system which maintains error free communication despite faults in one of the data bus lines.