Radio Transmission Emulator for Automotive Interference Testing
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Solution Overview
Problem
Conventional methods for testing radio receiving units in automobiles are costly and time-consuming due to the need to physically expose them to various interference types across different locations, which can change over time, making it difficult to accurately assess and adjust for interference effects.
Innovation Solution
A radio transmission emulator system that generates field simulation signals to simulate various interferences, allowing the radio receiving unit to be tested and adjusted without extensive travel, using a combination of clean and interference radio signals mixed by a processor-controlled unit to produce a field simulation signal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the radio receiving unit is exposed to real interference locations across different states, then the testing accuracy is improved, but the time and cost required for testing increases significantly
Solution Approach 1:
The patent creates a copy of real interference environments by generating simulated interference signals that replicate the characteristics of actual interference sources. Instead of physically traveling to multiple interference locations, the system synthesizes equivalent interference conditions in a controlled testing environment, achieving the same testing objectives without the time and cost of extensive field travel
Solution Approach 2:
The patent replaces the mechanical approach of physically transporting the radio receiving unit to various geographic locations with an electronic signal generation system. The mixing unit and signal generators create artificial interference fields that substitute for real-world interference environments, eliminating the need for mechanical relocation while maintaining testing validity
2Measurement precision
If the radio receiving unit is exposed to real interference locations across different states, then the testing accuracy is improved, but the cost required for testing increases significantly
Solution Approach 1:
The system creates cost-effective copies of expensive field testing conditions by synthesizing interference signals electronically. This eliminates the substantial costs associated with traveling to multiple states and locations, while maintaining the ability to assess radio receiving unit performance under various interference conditions
Solution Approach 2:
The patent substitutes expensive mechanical field testing operations with a controlled electronic signal generation system. The mixing unit combining multiple signal generators replaces the need for costly travel, accommodation, and field equipment deployment, significantly reducing overall testing costs
3Reliability
If real interference locations are used for testing, then the interference types are authentic, but the interference conditions change over time due to new construction or equipment removal
Solution Approach 1:
The system creates stable copies of interference conditions that can be precisely reproduced. By generating synthetic interference signals rather than relying on changing real-world environments, the system maintains consistent and repeatable testing conditions while preserving the authentic characteristics of various interference types
Solution Approach 2:
The patent enables precise control over interference parameters through the signal generation system. The mixing unit can adjust frequency, amplitude, and other characteristics of simulated interference signals, allowing for stable and reproducible testing conditions that can be precisely tailored to specific interference scenarios without being affected by external environmental changes
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
This approach reduces testing costs and time by allowing for accurate simulation of multiple interference types in a controlled environment, enabling more efficient and precise adjustments to the radio receiving unit without relying on extensive field testing.
Implementation Method 1
a clean radio signal unit configured to generate a clean radio signal, an interference radio signal unit configured to generate an interference radio signal
Implementation Method 2
a mixing unit receiving the clean radio signal and the interference radio signal, and mixing the clean radio signal and the interference radio signal to generate a field simulation signal
Data Source
AI summary
The present invention relates to a method and system for a radio transmission emulator. In one embodiment, the present invention includes a radio transmission emulator system. The radio transmission emulator system includes a radio transmission emulator, an automobile, and/or a radio data analysis unit. The automobile can include a radio receiving unit. The radio transmission emulator generates a field simulation signal which simulates interferences. The field simulation signal is transmitted from the radio transmission emulator to the radio receiving unit. The radio receiving unit generates the radio data based on the field simulation signal. The radio data analysis unit analyzes the radio data to determine whether adjustments should be made to the radio receiving unit.