Antenna Mode Switching for Capsule Endoscope Signal Reception
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Solution Overview
Problem
Existing capsule endoscope systems face challenges in reliably receiving wireless signals from medical devices inside a subject, particularly due to variations in signal strength and interference.
Innovation Solution
A processing apparatus that compares receiving performance indices with reference values to switch between wide and narrow half-power angle modes for the receiving antenna, optimizing its radiation direction to enhance signal reception.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the half-power angle of the receiving antenna is set to a large value to receive weak signals, then the receiving range is improved, but the receiving precision deteriorates
Solution Approach 1:
The receiving antenna dynamically switches between wide-angle mode and narrow-angle mode based on signal strength conditions. When signal strength is weak, the antenna uses a large half-power angle to receive signals from a wider range. When signal strength is sufficient, the antenna switches to a small half-power angle to improve reception accuracy and eliminate interference, thus resolving the contradiction between receiving range and reception precision
Solution Approach 2:
The system changes the half-power angle parameter of the receiving antenna based on signal conditions. By adjusting this parameter between large and small values, the system adapts to different signal environments, improving both reliability and precision under different conditions
2Measurement precision
If the half-power angle is set to a small value to improve receiving precision, then the signal accuracy is improved, but the receiving range is reduced
Solution Approach 1:
The receiving antenna dynamically adjusts its half-power angle based on real-time signal strength assessment. The system switches to narrow-angle mode only when signal strength exceeds a threshold, ensuring both precision and reliability are optimized for the current operating conditions
3Reliability
If multiple receiving antennas are used to improve signal reception, then the receiving reliability is improved, but the device complexity increases
Solution Approach 1:
The receiving system is divided into multiple antenna elements that can be independently controlled. Each antenna element can operate in different modes (wide-angle or narrow-angle), allowing the system to segment the reception task and improve reliability through diversity while managing complexity through modular control
Solution Approach 2:
Multiple antenna elements are combined into a unified receiving system with centralized control. The control unit coordinates all antenna elements, switching them between different modes based on overall signal conditions, thus achieving improved reliability through combination while managing complexity through unified control logic
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 approach allows for reliable and efficient reception of wireless signals from capsule endoscopes, improving image data transmission and diagnostic accuracy.
Implementation Method 1
image data captured by the capsule endoscope is sequentially transmitted to the outside of the body by using wireless communication
Implementation Method 2
set a radiation direction of the receiving antenna toward a section in which a second index satisfies a condition
Data Source
AI summary
A processing apparatus includes a processor configured to: compare a first index with a first reference value that has been determined for the first index, the first index indicating a receiving performance of a wireless signal that has been received by a receiving antenna from a medical device; perform switching to a first mode or a second mode based on a result of the comparing; and when the switching has been performed to the second mode, set a radiation direction of the receiving antenna toward a section in which a second index satisfies a condition relative to a second reference value that has been determined for the second index, from among a plurality of sections from which the receiving antenna receives the wireless signal, the second index indicating the receiving performance of the wireless signal that has been received.