Light-Activated Metering Device Seal Integrity
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Solution Overview
Problem
Regulatory requirements for metering devices to be disassembled before reconfiguration can lead to breaking of environmental seals, making the devices vulnerable to contamination and costly to repair.
Innovation Solution
A metering device with a light-sensitive component that prevents reconfiguration unless exposed to light, allowing disassembly without breaking environmental seals, and tamper indicators to record and indicate detachment for security and maintenance purposes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the metering device is disassembled for reconfiguration, then regulatory requirements are satisfied and reconfiguration is enabled, but the environmental sealing is broken making the device vulnerable to contamination
Solution Approach 1:
The device is divided into separate functional modules: a sealed environmental housing containing the metering components, and an external configuration interface. This segmentation allows the environmental seal to remain intact while enabling reconfiguration through wireless or external connections that do not require physical disassembly of the sealed housing.
Solution Approach 2:
An intermediary configuration interface or communication protocol is introduced between the external configuration source and the internal metering components. This intermediary enables reconfiguration data to be transmitted to the device without requiring physical access to or disassembly of the environmentally sealed housing, thus maintaining seal integrity while enabling adaptability.
2Adaptability or versatility
If physical disassembly is performed for reconfiguration, then regulatory compliance is achieved, but costly and messy touch-up work is required to repair environmental sealing
Solution Approach 1:
The mechanical disassembly process is replaced with a non-contact or external interface method for reconfiguration. Instead of physically opening the sealed housing to access components, the system uses wireless communication, external ports, or other non-mechanical means to enable configuration changes, thereby eliminating the need for sealing repair work entirely.
3Reliability
If tamper indicators are installed to detect unauthorized changes, then security is improved, but device complexity increases
Solution Approach 1:
The tamper detection functionality is merged with the existing environmental sealing structure. The sealing elements themselves are designed to provide tamper evidence, or the tamper indicators are integrated into the sealing mechanism, so that a single component or structure serves both sealing and security functions, rather than adding separate independent systems.
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
Enables secure reconfiguration of metering devices without compromising environmental sealing, providing evidence of tampering and reducing costly repairs while maintaining device integrity.
Implementation Method 1
The light-sensitive device is configured to detect light passing through the at least one window into the housing and to provide a signal indicating same to the processor
Data Source
AI summary
A metering device and a method for reconfiguring the device to satisfy those regulatory agencies that require that a metering device be disassembled in some way prior to allowing any reconfiguration of the device, but do so without breaking or otherwise affecting the environmental sealing of the device.