Antenna Adjustment System for Base Station Swing Compensation
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Solution Overview
Problem
Street lamp poles used for base station installations experience significant swing due to wind and vehicle loads, disrupting microwave backhaul signals and lacking standardized swing angle management, which affects signal transmission quality.
Innovation Solution
An antenna adjustment system comprising a housing, auxiliary board, inertial feedback unit, controller, actuator, and elastic element, where the auxiliary board is rotatably connected to the housing, and the actuator and elastic element counteract antenna deflection by rotating the antenna back to its initial position, ensuring signal stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the base station is installed on a street lamp pole to improve cell density and meet mobile broadband service requirements, then deployment flexibility and ease of installation are improved, but the antenna position stability deteriorates due to lamp pole swing caused by wind load and vehicle passage
Solution Approach 1:
The patent applies the dynamics principle by making the antenna position adjustable through an actuator mechanism. The antenna can dynamically change its position relative to the housing to compensate for swings caused by lamp pole movement. This transforms the static antenna mounting into a dynamic system that can adapt to external disturbances, resolving the contradiction between deployment flexibility and position stability.
Solution Approach 2:
The patent implements feedback through an inertial feedback unit that detects the swing angle of the antenna and sends signals to the controller. The controller then drives the actuator to adjust the antenna position based on the detected swing, creating a closed-loop feedback system. This feedback mechanism enables the antenna to automatically counteract swing effects and maintain stable signal transmission, directly addressing the position stability issue while preserving deployment flexibility.
2Device complexity
If the antenna is fixed to the housing to simplify the structure, then device complexity is reduced, but signal transmission quality deteriorates due to antenna deflection during lamp pole swing
Solution Approach 1:
The patent transforms the static fixed antenna structure into a dynamic adjustable structure. The actuator mechanism enables the antenna to move relative to the housing, allowing it to maintain proper orientation despite lamp pole swing. This dynamic capability ensures signal transmission quality without requiring overly complex structural reinforcements, balancing simplicity and reliability.
Solution Approach 2:
The inertial feedback unit and controller form a feedback loop that monitors antenna swing and automatically adjusts the antenna position. This feedback system maintains signal transmission quality by counteracting deflection in real-time, without requiring complex mechanical structures. The feedback mechanism provides a reliable and relatively simple solution to the reliability problem.
3Stability of the object's composition
If a larger actuator force is applied to counteract antenna swing, then position stability is improved, but energy consumption increases due to the work required to move the antenna against elastic element resistance
Solution Approach 1:
The patent applies the counterweight principle through the elastic element that provides a restoring force opposing the antenna swing. The elastic element stores potential energy during swing and releases it to help return the antenna to its initial position, reducing the work that the actuator must perform. This counterbalancing mechanism decreases actuator energy consumption while maintaining position stability.
Solution Approach 2:
The antenna adjustment system operates in a periodic manner, making adjustments only when swing is detected rather than continuously resisting all movements. The inertial feedback unit triggers actuator activation only when necessary to counteract significant swing, allowing the elastic element to handle minor oscillations passively. This periodic action reduces overall energy consumption compared to continuous active stabilization.
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 system effectively counteracts antenna deflection, maintaining signal stability and transmission quality by dynamically adjusting the antenna position in response to external environmental forces, thereby reducing signal interruptions.
Implementation Method 1
the inertial feedback unit is configured to detect a deflection angle of the antenna when the antenna swings with the housing
Implementation Method 2
the elastic element is elastically connected between the housing and the auxiliary board, to counterbalance driving force of the actuator
Data Source
AI summary
An antenna adjustment system and a base station, where the antenna adjustment system includes an inertial feedback unit configured to detect a swing angle of an antenna when the antenna swings with a housing, and send an angle signal to a controller, an actuator and an elastic element configured to control an auxiliary board to rotate back in a direction opposite to a swing direction of the housing in order to counteract deflection caused by swing of the housing of the antenna fastened to the auxiliary board. The actuator is driven by the controller based on the angle signal. Therefore, a position of an antenna can be adjusted with swing of the antenna such that signal sending stability of the antenna can be ensured.