Smart Meter Antenna Adjustment for Metal Interference
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Solution Overview
Problem
Smart electric meters mounted near metal structures, such as iron frames or boxes, often experience signal obstruction due to impedance mismatch, requiring reinstallation to ensure proper signal transmission.
Innovation Solution
A smart electric meter design featuring a moveable antenna structure along an annular holder, supported by a moveable member, allowing adjustment to avoid metal obstructions and maintain effective wireless communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the smart electric meter is mounted near metal structures, then installation flexibility is improved, but signal transmission quality deteriorates due to impedance mismatch and obstruction
Solution Approach 1:
The antenna structure is designed to be movable along the circumferential direction of the annular holder, allowing dynamic adjustment of antenna orientation. This enables the antenna to be positioned away from metal obstructions while maintaining flexible installation locations, thus resolving the contradiction between installation flexibility and signal transmission quality
Solution Approach 2:
The antenna system is segmented from the main meter body through the movable connection mechanism. This segmentation allows the antenna to be independently positioned and oriented away from metal structures while the meter body remains fixed, maintaining both installation flexibility and signal quality
2Device complexity
If the antenna structure is fixed, then device complexity is reduced, but adaptability to different mounting environments deteriorates
Solution Approach 1:
The antenna structure incorporates a movable connection mechanism that allows adjustment along the circumferential direction of the annular holder. This dynamic capability enables adaptation to different mounting environments without significantly increasing overall device complexity, as the movement mechanism is integrated into the existing antenna holder design
Solution Approach 2:
The annular holder design provides universal adaptability by allowing the antenna to be positioned at various orientations. This single structural solution accommodates multiple mounting scenarios and metal obstruction configurations, enhancing versatility without requiring multiple specialized antenna designs
Data Source
AI summary
A smart electric meter is provided. The smart electric meter includes a body, an antenna holder, an antenna structure and a supporting member. The antenna holder is disposed on the body, wherein the antenna holder is annular. The antenna structure is disposed on the antenna holder, wherein the antenna structure is moveable along a circumferential direction of the antenna holder. The supporting member is connected to the antenna structure, wherein the supporting member is moveably disposed on the antenna holder, and the supporting member moves the antenna structure along the circumferential direction of the antenna holder.