Shared-Ground Sensor Cable Layout for Lower Wire Count
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Solution Overview
Problem
Existing cable with sensor systems require an increase in the number of electric wires as the number of magnetic sensors increases, leading to inefficiencies and a need for a solution to reduce the number of electric wires while maintaining detection accuracy.
Innovation Solution
A sensor device structure where the negative connection terminals of multiple sensors are electrically connected to each other, allowing shared use of a single electric wire for ground, thereby reducing the overall number of electric wires required.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the number of magnetic sensors is increased to improve detection accuracy or redundancy, then the detection reliability is improved, but the number of electric wires increases leading to increased device complexity
Solution Approach 1:
Multiple negative connection terminals from different magnetic sensors are electrically connected and merged into a single common negative connection terminal. This allows multiple sensors to share a common ground wire, thereby reducing the total number of electric wires required while maintaining the reliability benefits of having multiple sensors
Solution Approach 2:
The common negative connection terminal serves as a universal ground connection for multiple magnetic sensors simultaneously. This multi-functional terminal replaces what would otherwise require multiple separate connection terminals, reducing wire count while maintaining universal connectivity across all sensor units
Data Source
AI summary
A sensor device includes a first pair of connection terminals extended from a first sensor and a second pair of connection terminals extended from a second sensor. A first negative connection terminal that is a negative connection terminal of the first pair of connection terminals and a second negative connection terminal that is a negative connection terminal of the second pair of connection terminals are electrically connected to each other.