Dual Autonomous Telemetry Receivers with Opto-Isolation
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Solution Overview
Problem
Current telemetry data acquisition systems are complex, costly, and prone to distortions due to third-party equipment, environmental factors, and power/grounding issues, requiring skilled operators and proprietary software, which complicates data gathering and processing.
Innovation Solution
A serial digital data acquisition system utilizing opto-isolator assemblies, sampling logic, and USB interfaces to isolate and synchronize telemetry signals, allowing for accurate data sampling and processing without external power or proprietary software, and enabling multiple users to access and record data streams.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If complex telemetry data acquisition systems with third-party equipment are used, then data gathering capability is provided, but system complexity and cost increase
Solution Approach 1:
The system divides the data acquisition function into two independent parallel receivers, each capable of autonomous operation. This segmentation eliminates the need for complex centralized processing and third-party equipment, reducing overall system complexity while maintaining reliability through redundancy.
Solution Approach 2:
Each receiver is designed to be self-sufficient with autonomous synchronization capability, eliminating dependence on external master clocks or complex control systems. The receivers independently generate and synchronize to clock signals, reducing system complexity while ensuring reliable operation.
2Ease of operation
If third-party equipment and cables are used between clock and data signals, then signal distribution is enabled, but timing skew and signal distortions occur
Solution Approach 1:
The system extracts the clock signal processing function from external third-party equipment and implements it directly within each receiver. By taking out the clock synchronization function from external sources and embedding it in the receivers themselves, the system eliminates timing skew introduced by external cables and equipment while maintaining signal distribution capability.
3Adaptability or versatility
If environmental factors and power/grounding variations are present, then real-world operation is enabled, but data reliability degrades
Solution Approach 1:
The system implements beforehand cushioning by providing dual autonomous receivers that can compensate for each other. Environmental variations and power glitches affecting one receiver are compensated by the other, ensuring continuous reliable data acquisition without requiring complex environmental control or shielding.
4Ease of operation
If skilled operators and proprietary software are required, then system control and processing are enabled, but operational complexity and maintenance burden increase
Solution Approach 1:
The receivers are designed to be self-configuring and self-synchronizing, eliminating the need for skilled operators to manually configure complex parameters. The autonomous design with automatic clock synchronization and data formatting reduces operational complexity to simple plug-and-play operation while maintaining full control capability.
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
The system provides a simple, accurate, and reliable method for telemetry data acquisition, reducing the need for skilled operators and proprietary software, while compensating for distortions and ensuring data integrity across various environmental conditions.
Implementation Method 1
an opto-isolator assembly, through which both the CLK and DATA signals pass
Data Source
AI summary
A serial digital data acquisition receiver (SDDAR) or system of receivers may include an opto-isolator assembly, sampling logic and a USB interface. Both a CLK signal and a DATA signal may each pass through the opto-isolator assembly upon receipt of the CLK and DATA signals at the SDDAR or system. The sampling logic may be operably coupled to the opto-isolator assembly and be configured to determine a point at which to sample the DATA signal based on state changes in the CLK signal. The USB interface may be operably coupled to the sampling logic and an output terminal. The USB interface may be configured to provide telemetry data for processing, display or recording at the output terminal, and may be configured to enable the SDDAR or system to be powered from the output terminal.