Cable Connection Identification Using DC Signal Injection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Incorrect cable connections between electrical components can lead to device malfunction, increased installation and maintenance time, and decreased customer satisfaction, particularly in challenging environments, and existing solutions like custom cables or color codes are costly and inconvenient.
Innovation Solution
A system that uses two cables to connect devices, with one cable carrying a DC signal to determine correct signal routing, and a sensing circuit and switch to electronically correct incorrect connections, allowing for proper RF signal path connections without custom cables or connectors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If different connector types are used on each signal path, then incorrect cable connections are physically prevented, but production costs increase and installer convenience decreases
Solution Approach 1:
The patent uses identical F-type connectors on all cable paths, making them homogeneous and interchangeable. This eliminates the need for different connector types while maintaining connection reliability through electronic identification using DC signals rather than physical differentiation.
Solution Approach 2:
The patent introduces DC signals as an intermediary mechanism to identify cable paths. Instead of relying on physical connector differences, the system uses electrical signals to carry identification information, allowing correct routing without custom connectors.
2Reliability
If color codes or labels are used on cables and components, then incorrect connections are prevented, but installation time increases and label durability becomes a concern
Solution Approach 1:
The patent replaces mechanical labeling systems (color codes, stickers, tags) with an electrical signaling system. DC signals are injected into cables to provide identification information electronically, eliminating the need for physical labels and reducing installation time.
Solution Approach 2:
The system automatically identifies cable paths through DC signal detection without requiring manual labeling or visual matching. The equipment itself performs the identification function by detecting which cable carries the DC signal, eliminating manual intervention for cable matching.
3Reliability
If multiple custom cables with custom connectors are used, then connection accuracy is improved, but installer convenience and portability decrease
Solution Approach 1:
The patent makes all cables universal with identical F-type connectors that can be used on any signal path. Installers carry only one type of connector, and the system uses DC signal injection to provide path-specific identification, making the connector multi-functional for all cable routes.
Solution Approach 2:
The patent changes the identification parameter from physical connector characteristics to electrical signal characteristics. Instead of differentiating cables by connector type, the system differentiates paths by injecting DC signals with specific parameters (voltage levels) that identify the intended signal route.
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
Ensures proper RF signal path connections, reduces installation and maintenance time, and increases customer satisfaction without increasing production costs or the number of cable types, facilitating installations in difficult conditions.
Implementation Method 1
a DC signal is also provided over one of the at least two cables
Data Source
Figure 1
Figure 2
Figure 3
AI summary
In accordance with an exemplary embodiment, a system comprises a first electrical component, a second electrical component, and at least two cables connecting the first and second electrical components. Time varying signals are transmitted through the cables with at least one of the cables carrying an injected DC signal. The system associates the cable carrying the DC signal with a predetermined time varying signal and is capable of electronically switching the routes of the time varying signals if the cables are incorrectly physically attached to the first and second electrical components.