Adjustable Metal Shielding Layer for Directional Bluetooth Signal Control
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Solution Overview
Problem
Conventional low-power Bluetooth transmitters emit signals in all directions with fixed power, making it difficult to control signal direction and power, leading to overlapping signal areas and confusion for mobile devices.
Innovation Solution
A signal transmitter with an adjustable metal shielding layer and circuit board, allowing manual adjustment of shielding and un-shielding areas to control signal emission power and direction, reducing signal overlap by measuring distance from neighboring transmitters.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If conventional low-power bluetooth transmitters emit signals in all directions with fixed power, then the signal coverage area is maximized, but signal overlap and interference occur between neighboring transmitters
Solution Approach 1:
The patent applies local quality by making different regions of the metal shielding layer have different properties - specifically, adjusting the shielding and un-shielding areas to control signal emission in specific directions rather than uniformly in all directions. This allows the transmitter to concentrate signal power in desired directions while reducing or eliminating signal emission in other directions, thereby avoiding interference with neighboring transmitters.
Solution Approach 2:
The patent implements dynamics by making the metal shielding layer adjustable, allowing the shielding area and un-shielding area to be dynamically changed. This enables the signal transmission direction and power to be adjusted according to different deployment scenarios, transforming a static omnidirectional transmitter into a dynamically controllable directional transmitter that can adapt to avoid signal overlap.
2Device complexity
If conventional low-power bluetooth transmitters use fixed emission power, then the device structure is simple, but the signal power cannot be adjusted to control transmission direction and coverage
Solution Approach 1:
The patent applies dynamics by transforming the fixed metal shielding layer into an adjustable one. The adjustment mechanism (such as rotating or moving the shielding layer) allows the device to change its signal emission characteristics without requiring complex electronic power control circuits. This mechanical adjustment provides adaptability in signal direction and coverage area while keeping the overall device structure relatively simple.
Solution Approach 2:
The patent implements parameter changes by physically altering the shielding area and un-shielding area of the metal shielding layer. By changing the geometric parameters (area configuration) of the shielding structure, the signal emission power and direction are adjusted. This approach uses physical parameter changes rather than electronic power control, achieving adaptability through structural modification.
3Area of stationary object
If neighboring signal transmitters operate with full power in all directions, then each transmitter achieves maximum coverage, but mobile devices receive multiple overlapping signals and cannot determine which signal to utilize
Solution Approach 1:
The patent applies local quality by directing signals in specific directions rather than uniformly in all directions. By configuring the metal shielding layer to create focused un-shielding areas, the transmitter concentrates signal energy in particular directions, reducing the likelihood of overlapping with signals from neighboring transmitters. This directional focus helps mobile devices receive clear, identifiable signals from specific sources.
Solution Approach 2:
The patent implements segmentation by dividing the 360-degree coverage area into specific directional segments through the metal shielding layer configuration. Instead of emitting signals uniformly in all directions, the shielding layer creates distinct un-shielding areas that segment the signal emission into specific angular ranges. This segmentation reduces signal overlap and helps mobile devices identify which transmitter is intended for communication.
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 precise control of signal direction and power, simplifying transmitter placement and reducing signal interference between neighboring transmitters.
Implementation Method 1
The first adjustable metal shielding layer is disposed within the housing... The area of the first adjustable metal shielding layer consists of a first shielding area and a first un-shielding area
Data Source
AI summary
A signal transmitter with adjustable signal power includes a housing, a first adjustable metal shielding layer and a circuit board. The first adjustable metal shielding layer is disposed within the housing. The area of the first adjustable metal shielding layer consists of a first shielding area and a first un-shielding area. The first shielding area and the first un-shielding area are adjustable. The circuit board is disposed within the housing, and is located below the first adjustable metal shielding layer. The circuit board is electrically connected with the first adjustable metal shielding layer, and includes a signal emission chip. The signal emission chip is configured for adjusting signal emission power to emit a signal according to the first un-shielding area of the first adjustable metal shielding layer. A message generating system and a signal power adjusting method are disclosed herein as well.