Intelligent PoE Sensor Architecture for Harsh-Environment Data Links
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Solution Overview
Problem
Existing digital sensors face challenges in providing intelligent sensor signals in remote or harsh environments with limited wireless conductivity, requiring real-time data and processed information without wireless connectivity.
Innovation Solution
The implementation of Intelligent Power over Ethernet (POE) sensors (IPS) that utilize a POE compliant interface for energy and signal transmission, coupled with processing systems and user devices for real-time data processing and communication via wired and wireless networks, enabling hermetic underwater connections and secure data transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If wireless communication is used for sensor data transmission, then communication flexibility is improved, but reliability in harsh environments with limited wireless conductivity deteriorates
Solution Approach 1:
The communication system is segmented into multiple modes: wireless communication for normal conditions and wired POE connection for harsh environments. The sensor device can switch between these modes based on environmental conditions, ensuring reliable data transmission while maintaining communication flexibility.
Solution Approach 2:
A POE injector acts as an intermediary device that provides both power and data transmission through a wired connection when wireless communication is unavailable or unreliable. This intermediary solution enables robust communication in harsh environments while maintaining the option for wireless communication in normal conditions.
2Speed
If real-time data processing is performed at the sensor device, then response time is improved, but device complexity increases
Solution Approach 1:
Basic data processing and filtering operations are performed at the sensor device in advance (preliminary action) before data transmission. This includes local threshold comparisons, event detection, and data formatting, which reduce the amount of data needing transmission and enable faster response times without requiring complex processing at the remote end.
Solution Approach 2:
The sensor device performs partial processing locally and transmits only necessary processed data to the remote system. This selective processing approach maintains response time benefits while avoiding the complexity of complete data processing at the sensor device itself.
3Reliability
If hermetic sealing is implemented for underwater connections, then reliability in harsh environments is improved, but device complexity increases
Solution Approach 1:
The POE connector serves multiple functions: it provides both electrical power and data communication through a single interface, and the hermetic sealing at this interface simultaneously protects against environmental factors while enabling wired communication. This multi-functionality reduces overall device complexity compared to separate solutions.
Solution Approach 2:
The hermetic POE connector design can be replicated and standardized across different sensor devices, allowing the same reliable connection mechanism to be used universally in harsh environments without increasing overall system complexity.
4Reliability
If wired POE connection is used instead of wireless communication, then communication reliability in harsh environments is improved, but ease of installation deteriorates
Solution Approach 1:
The communication system is designed to be dynamic, automatically switching between wired and wireless modes based on environmental conditions and availability. The sensor device can detect when wireless communication is unavailable and initiate POE connection automatically, minimizing installation complexity while ensuring reliable communication when needed.
Data Source
AI summary
Embodiments of Power Over Ethernet sensors providing processed signals directly to User devices or via a sensor processing system. Other embodiments may be described and claimed.