Wireless Communication System Using Rotating Polarized Waves
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Solution Overview
Problem
Existing wireless communication systems face challenges in maintaining communication quality through shielding materials with high loss, particularly in infrastructure systems requiring adjustment-free operation and automatic recovery from deformation, such as nuclear power plants, where mechanical changes are not feasible.
Innovation Solution
A wireless communication system utilizing two spatially non-parallel antennas that transmit and receive rotating polarized waves, adjusting propagation frequencies to maximize signal intensity, and employing specific codes shared between devices to optimize communication through shielding materials.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If the frequency used in communication is decreased to reduce attenuation, then propagation loss is reduced, but antenna radiation efficiency decreases
Solution Approach 1:
The patent employs dynamic frequency selection where the communication system can switch between different frequency bands (e.g., 50 MHz to 500 MHz) depending on the shielding thickness and communication requirements. This dynamic adaptation allows the system to optimize between attenuation loss and antenna efficiency by selecting the appropriate frequency for each specific scenario, rather than being fixed at a single frequency.
Solution Approach 2:
The system changes the operating frequency parameter based on the shielding conditions. By adjusting the frequency parameter dynamically, the system can penetrate different thicknesses of shielding material effectively while maintaining acceptable radiation efficiency through adaptive parameter selection rather than fixed parameters.
2Reliability
If the thickness of the shielding member is increased to improve physical safety, then shielding performance is improved, but electromagnetic wave propagation becomes insufficient
Solution Approach 1:
The communication system dynamically adjusts its operating frequency based on the detected shielding thickness. When thicker shielding is present, the system automatically selects lower frequencies that can penetrate the shielding more effectively, maintaining communication reliability without requiring mechanical changes to the shielding structure.
Solution Approach 2:
The system incorporates feedback mechanisms to detect communication quality and shielding conditions, then automatically adjusts transmission parameters including frequency selection and power levels to maintain reliable communication through varying shielding thicknesses, ensuring both safety and communication functionality.
3Loss of energy
If fine adjustment of electrode distance is used to minimize reflection loss, then communication quality is improved, but resistance against deformation and aged deterioration decreases
Solution Approach 1:
The patent replaces mechanical adjustment mechanisms (fine adjustment of electrode distance) with electronic frequency tuning and signal processing techniques. By using software-controlled frequency selection and digital signal processing to minimize reflection and optimize communication, the system eliminates mechanical parts that are susceptible to deformation and aging, thereby improving reliability while maintaining communication quality.
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 reliable, adjustment-free wireless communication through shielding materials with high loss, providing automatic recovery from deformation and maintaining optimal communication quality by adjusting carrier frequencies and polarized wave directions.
Implementation Method 1
two antennas having a spatially non-parallel relation with each other, a transmitter, and a receiver, the transmitter and the receiver transmitting and receiving rotating polarized waves
Implementation Method 2
transmitting and receiving rotating polarized waves while the transmitter and the receiver vary propagation frequencies
Implementation Method 3
a loss for electromagnetic waves, if a thickness of the shielding member is large, propagation of the electromagnetic energy from transmission point to the reception point becomes insufficient due to attenuation of the electromagnetic energy
Implementation Method 4
Main factors in attenuation of the electromagnetic energy are a reflection phenomenon of electromagnetic waves generated between different materials having a small loss such as the air and a material having a large loss, such as the concrete and water
Data Source
AI summary
In a wireless communication system, wireless communication devices are disposed, each including two orthogonal antennas, a transmitter, and a receiver using rotating polarized wave having a changeable transmission frequency. Specific codes are assigned to the devices, respectively and are shared. In a first of the devices, information and a first code are superimposed on a first carrier wave. In a second of the devices, the transmitted wave is received to reproduce the information with the codes assigned to the second device and the shared code assigned to the first device. The second device transmits second information through modulation using the code thereof. Each of the first and second devices adjusts the propagation frequency for a maximum ratio in intensity of a signal reproduced with the code assigned to another device to an intensity of a signal reproduced with the code assigned to the own device.