Movable Coupler Wireless Communication System
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Solution Overview
Problem
In near-field communication systems using electromagnetic field coupling, the positional relationship between transmission and reception couplers affects communication accuracy, leading to signal attenuation and noise issues, particularly when the reception coupler is positioned far from the input end of the transmission line, resulting in weakened signals or excessive noise.
Innovation Solution
A communication system with a first coupler for transmitting signals and a second, shorter coupler for receiving, where the relative position of the second coupler is adjusted to optimize coupling by changing its distance and facing area with respect to the first coupler, using a movement control unit to maintain a higher coupling degree when the second coupler is closer to the input end, thereby preventing signal attenuation and noise increase.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If the reception-end coupler is located in the vicinity of the end portion of the transmission line, then the signal attenuation is reduced, but the received signal intensity becomes lower than the threshold value of the comparator
Solution Approach 1:
The patent applies dynamics by making the coupler movable along the transmission line. The movement control unit adjusts the position of the coupler dynamically based on communication requirements, allowing the system to optimize between signal attenuation and signal intensity by selecting appropriate positions along the transmission line.
Solution Approach 2:
The patent changes the positional parameter of the coupler along the transmission line. By adjusting the distance between the coupler and the input end of the transmission line, the system optimizes the balance between signal attenuation (which decreases with distance) and received signal intensity (which decreases due to attenuation), resolving the contradiction.
2Reliability
If the amplitude of the signal input to the input end of transmission line is increased, then the received signal intensity is improved, but the noise intensity becomes higher than the threshold value of the comparator
Solution Approach 1:
The patent uses the movable coupler as an intermediary element between the transmission line and the reception circuit. By positioning the coupler at optimal locations along the transmission line, it mediates the signal transmission to achieve sufficient received signal intensity without requiring excessive input amplitude that would generate harmful noise.
Solution Approach 2:
Instead of changing the signal amplitude parameter, the patent changes the positional parameter of the coupler. This alternative approach achieves the goal of improving signal restoration accuracy by optimizing the coupling position, thereby avoiding the generation of excessive noise that would result from increasing signal amplitude.
3Device complexity
If the coupler position is fixed, then the device complexity is reduced, but the communication accuracy deteriorates when positional relationship changes
Solution Approach 1:
The patent implements a movable coupler mechanism that can dynamically adjust its position along the transmission line. This dynamic capability allows the system to maintain high communication accuracy despite changes in the positional relationship between transmitting and receiving devices, while the movement control unit manages the complexity of the positioning mechanism.
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
This configuration enhances communication accuracy by maintaining signal strength and reducing noise, ensuring reliable data transfer even when the positional relationship between couplers changes, thereby improving overall system performance.
Implementation Method 1
wireless communication using electromagnetic field coupling between the first coupler and the second coupler
Data Source
AI summary
A communication system performs wireless communication using electromagnetic field coupling between a transmission coupler and a reception coupler and moves at least one of the transmission coupler and the reception coupler so as to change the position in a predetermined direction of the reception coupler relative to the transmission coupler. In the communication system, the greater the distance between an overlap portion where the transmission coupler and the reception coupler overlap as viewed from a vertical direction to the predetermined direction and an input end of the transmission coupler is, the higher the degree of coupling between the transmission coupler and the reception coupler becomes.