Wireless Communication Device Failure Circuit Identification
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Solution Overview
Problem
Existing wireless communication device failure detection techniques cannot specify which circuit part is failing, only indicating the presence or absence of a failure.
Innovation Solution
A wireless communication device with a test signal generation unit, test signal reception unit, and test signal determination unit that transfers test signals through loopback circuits to determine if the test signals are normal, allowing for the identification of failing circuits by comparing signal values and strengths across different paths.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a simple transmission signal input method is used to detect failure, then the detection process is simple, but it is not possible to specify which circuit part is in failure
Solution Approach 1:
The patent divides the wireless communication device into multiple tested units (transmission circuit, reception circuit, antenna feed end, etc.) and assigns specific test signal paths to each unit. By segmenting the failure detection process into unit-specific tests, the system can identify which specific circuit part is failing while maintaining a systematic and manageable detection approach.
Solution Approach 2:
The patent introduces a test signal as an intermediary element that can be selectively routed through different circuit paths. This test signal acts as a mediator to probe specific circuit units without requiring direct observation of the failing component, enabling precise failure location identification while keeping the detection process simple and non-invasive.
2Measurement precision
If multiple test signal paths are used to identify failing circuits, then failure location can be specified, but the device complexity increases
Solution Approach 1:
The patent designs the test signal transfer unit to perform multiple functions: it can route test signals through different paths, switch between testing various circuit units, and adapt to different test scenarios. This multi-functional design enables precise failure identification without requiring separate dedicated test equipment for each circuit unit, thereby controlling device complexity.
Solution Approach 2:
The patent combines the test signal generation, routing, and transfer functions into an integrated test signal transfer unit. By merging these functions into a single modular component, the system achieves precise failure location identification while avoiding the complexity of separate distributed test systems. The merged unit can be controlled through a unified interface, simplifying the overall device architecture.
Data Source
AI summary
To discriminate between a circuit where a failure does not occur and a circuit where a failure might occur, a wireless communication device has tested units which belong to a transmission side circuit, tested units which belong to a reception side circuit, a test signal generation unit for generating a test signal, a test signal reception unit for receiving a test signal, a test signal determination unit for determining whether or not the test signal received by the test signal reception unit is normal, and test signal transfer units for transferring a test signal from the transmission side circuit to the reception side circuit.