Alternating Directional Antenna Calibration for Mobile Communication Systems
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Solution Overview
Problem
Existing communication systems using directional antennas on mobile objects face challenges in maintaining high communication quality due to movement, leading to calibration failures and increased calibration times.
Innovation Solution
The system alternates calibration between communication apparatuses, with one apparatus transmitting mobile object information and the other adjusting its directional antenna to maximize radio wave receipt intensity, preventing simultaneous calibration and reducing resonance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If both communication apparatuses perform calibration simultaneously, then calibration can be completed quickly, but resonance occurs causing calibration failure
Solution Approach 1:
The patent implements periodic calibration by alternating between two communication apparatuses. One apparatus performs calibration while the other waits, then they switch roles. This periodic action eliminates simultaneous calibration operations that cause resonance, ensuring reliable calibration completion without failure.
2Reliability
If calibration is performed frequently to maintain communication quality, then communication reliability is improved, but calibration time increases
Solution Approach 1:
The patent uses preliminary action by having one apparatus transmit mobile object information to the other before calibration. The receiving apparatus predicts the directional antenna's orientation based on this information, allowing it to skip extensive calibration procedures and directly adjust to the correct angle, thus reducing calibration time while maintaining communication quality.
3Reliability
If directional antenna direction is adjusted frequently to track mobile object, then communication quality is maintained, but antenna wear increases
Solution Approach 1:
The patent implements feedback by having the communication apparatus receive mobile object information (location, movement direction, speed) and use this feedback to predict the optimal antenna orientation. This allows the antenna to be adjusted less frequently based on predicted positions rather than continuous real-time adjustment, reducing mechanical wear while maintaining communication quality.
Data Source
AI summary
Provided is a system, including: a first communication apparatus including a first directional antenna; and a second communication apparatus, loaded on a mobile object, including a second directional antenna, wherein the first communication apparatus includes: a first adjustment performing unit configured to perform a calibration of the first directional antenna; and a first notification information transmitting unit configured to transmit a first notification information to the second communication apparatus according to a completion of a calibration of the first directional antenna by the first adjustment performing unit; and wherein the second communication apparatus includes a second adjustment performing unit configured to perform a calibration of the second directional antenna according to a receipt of the first notification information.