Wireless AV RF Power Control for Changing Distance and Angle
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Wireless AV systems face challenges in maintaining optimal RF signal performance due to unconstrained device installation, which affects RF signal strength and efficiency, particularly with high-capacity data transmission.
Innovation Solution
A device and method for adaptively controlling RF transmit power based on location information and RF reception sensitivity, adjusting power levels dynamically to maintain optimal signal strength and efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If RF transmit power is increased to maintain signal quality over distance, then signal coverage is improved, but power consumption increases
Solution Approach 1:
The patent implements dynamic RF transmit power control by continuously monitoring location information between transmitting and receiving devices, and adjusting power levels in real-time based on changing distances and environmental conditions, rather than using fixed power levels
Solution Approach 2:
The system establishes a feedback loop where the receiving device measures RF signal strength and transmits this information back to the transmitting device, which then adjusts its transmit power accordingly to maintain optimal signal quality while minimizing power consumption
2Ease of operation
If devices are deployed without constraints to increase installation flexibility, then ease of installation is improved, but RF signal performance deteriorates
Solution Approach 1:
The system automatically compensates for suboptimal installation positions by having devices self-adjust their RF transmit power based on their actual location and signal conditions, eliminating the need for precise manual positioning during installation
Solution Approach 2:
The patent changes the RF transmit power parameter dynamically based on location information and signal conditions, allowing the system to adapt to various installation configurations and maintain performance despite unconstrained device placement
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 efficient power consumption and improved RF signal performance in wireless AV systems by optimizing RF transmit power according to device location and reception sensitivity, even with changing distances and angles.
Implementation Method 1
the location information collector may transmit a reference signal for collecting the location information to the wireless data receiving device, and the location information collector may collect the location information of the wireless data receiving device based on a frequency that is changed due to a Doppler effect when the reference signal is reflected from the wireless data receiving device
Data Source
Figure 1
Figure 2
Figure 3(A)~3(B)
AI summary
The present invention relates to an apparatus and a method for adaptively controlling RF transmission power in a wireless AV system. Disclosed is an apparatus for controlling RF transmission power, comprising: a control unit for setting RF transmission power on the basis of position information about a wireless data reception device; and a wireless communication unit for transmitting a wireless AV signal to the wireless data reception device at the set RF transmission power, adjusting the set RF transmission power on the basis of the RF reception sensitivity of the wireless data reception device, and transmitting the wireless AV signal to the wireless data reception device at the adjusted RF transmission power. A wireless AV signal is transmitted at optimal RF transmission power even when a position, such as that relating to a distance and an angle, between devices is changed, and thus a wireless AV system for increasing power consumption efficiency can be implemented.