Antenna Beam Control System with Direct OOK Signal Filtering
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Solution Overview
Problem
Existing control systems for antenna beam radiation direction are complex, expensive, and sensitive to environmental hazards due to the need for multiple circuits and long RS485 connections, which increases the risk of damage from lightning strikes and other environmental factors.
Innovation Solution
A simplified control system where filtering means are directly connected to an external control unit, eliminating the need for intermediate circuits and using OOK modulation directly from the MCU to the RET unit, reducing the number of conductors and circuitry exposed to the environment, and placing detecting and control means within the external control unit for enhanced protection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple intermediate circuits and long RS485 connections are used in the control system, then control functionality is achieved, but system complexity increases and sensitivity to environmental hazards increases
Solution Approach 1:
The patent extracts and removes intermediate conversion circuits (CILOC, layer-1 converters, RS485 transceivers) from the control system, keeping only the essential filtering means directly connected to the external control unit. This extraction eliminates unnecessary components that increased complexity and vulnerability while preserving the core control functionality.
Solution Approach 2:
Instead of converting control signals from OOK modulation to RS485 format through multiple intermediate circuits, the patent inverts the approach by directly processing OOK modulated signals at the external control unit. This inversion eliminates the need for RS485 conversion infrastructure and reduces system complexity.
2Reliability
If multiple circuits and conductors are exposed to the environment, then control functionality is maintained, but protection against environmental hazards becomes more difficult and expensive
Solution Approach 1:
The patent removes numerous exposed circuits and conductors (RS485 cables, intermediate converters) from the system, leaving only the essential filtering means with minimal exposed connections. This extraction directly reduces the number of components requiring environmental protection, lowering manufacturing costs while improving reliability.
3Adaptability or versatility
If intermediate conversion circuits are used, then signal conversion is achieved, but the number of electronic components increases
Solution Approach 1:
The external control unit is designed to directly process OOK modulated control signals without requiring separate RS485 conversion circuits. This multi-functional approach combines signal reception, demodulation, and processing in a single unit, eliminating the need for multiple specialized components while maintaining signal compatibility.
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
The solution results in a more robust, less complex, and cost-effective system with reduced sensitivity to environmental hazards, as fewer circuits and conductors are exposed, lowering production costs and enhancing protection against environmental threats.
Implementation Method 1
filtering means (403) connected, in use, to a feeder cable (401) arranged for carrying RF signals and a control signal, said filtering means (403) being arranged for filtering out said control signal
Implementation Method 2
using OOK modulation directly from the MCU to the RET unit
Data Source
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AI summary
An improved control system for controlling radiation direction of an antenna beam of an antenna is disclosed. The radiation direction is adjustable by an actuating device influencing phase shifting means based on an actuating signal. The system includes filtering means, arranged for filtering out a control signal and being connected, in use, to a feeder cable arranged for carrying RF signals and control signals. The system further includes an external control unit including detecting means, arranged for detecting the filtered out control signal, and control means, arranged for producing the actuating signal based on the detected control signal. The filtering means is directly connected to the external control unit so as to provide the filtered out control signal directly to the external control unit.