LED Lighting Antenna Layout for Shielded Wireless Signal Control
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Solution Overview
Problem
Existing lighting devices face challenges in achieving good signal quality due to shielding from their structure or installation position, which affects wireless control and operation efficiency.
Innovation Solution
A lighting apparatus design incorporating a flexible antenna system with multiple antenna units on the lateral wall, a wireless circuit, and a driver that selects the best signal quality antenna for transmission, integrated with a heat sink and LED module, allowing for compact and efficient light emission and control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single antenna is used in the lighting device, then the device structure is simple, but the signal quality deteriorates due to shielding from structure or installation position
Solution Approach 1:
The patent divides the single antenna into multiple antenna units (first antenna unit and second antenna unit) positioned at different locations on the housing. This segmentation allows the system to select the best signal among multiple antennas, overcoming the shielding problem that would affect a single antenna regardless of its position.
Solution Approach 2:
The patent changes the parameter of antenna quantity from one to multiple, and introduces the parameter of signal quality as a selection criterion. The control circuit compares signal qualities from different antenna units and selects the optimal one for wireless communication, thereby improving reliability without excessive complexity.
2Reliability
If multiple antenna units are deployed to improve signal quality, then the wireless control reliability is improved, but the device complexity increases
Solution Approach 1:
The patent introduces dynamic signal quality detection and selection among multiple antenna units. The control circuit actively monitors signal quality from different antennas and dynamically selects the best one for communication, making the antenna system adaptive rather than static. This dynamic approach improves reliability without requiring all antennas to operate simultaneously, thus controlling complexity.
Solution Approach 2:
The antenna system performs self-diagnosis and self-selection of the optimal antenna unit based on signal quality metrics. The control circuit automatically determines which antenna unit provides the best signal without external intervention, allowing the system to self-optimize its wireless communication performance while maintaining manageable complexity through automated decision-making.
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
The solution enhances signal quality and flexibility in lighting devices, enabling effective wireless control and operation while maintaining a compact design, even when installed in positions with potential shielding issues.
Implementation Method 1
a LED module 607
Implementation Method 2
a heat sink 622 with an antenna 624 on a lateral wall 621 of the heat sink
Data Source
AI summary
A lighting apparatus includes a LED module, a light source plate, a heat sink, an antenna, a driver and a light housing. The light source plate is used for holding the LED module. The heat sink has a bottom plate and a lateral wall. The light source plate is placed on the bottom plate. The antenna is disposed on the lateral wall. The driver is used for generating a driving current to the LED module. The driver has a wireless circuit. The wireless circuit is electrically connected to the antenna for transmitting a wireless signal. The light housing is used for holding the heat sink so that the LED module emits light toward a light opening of the light housing.