Level Radar Adaptive Transmission Power Adjustment
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Solution Overview
Problem
Level radar devices face challenges in minimizing excessive radiation interference with other spectrum users, particularly when their antenna direction is tilted or adjusted, leading to increased interference potential with primary radio services.
Innovation Solution
The level radar device incorporates an adaptive transmission power adjustment system, utilizing a beam angle determining device and control circuitry to set maximum permissible transmission power based on the radiation direction and antenna characteristics, which can be adjusted mechanically or electronically, and includes identification and position determination means to ensure compliance with regulatory requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the antenna direction is tilted or adjusted to change the main beam direction, then the radar can adapt to different installation conditions and measurement requirements, but the interference radiation with primary radio services increases
Solution Approach 1:
The patent implements dynamic transmission power adjustment based on the antenna's main beam direction. The control device continuously monitors the beam direction and adapts the transmission power in real-time, transitioning from static to dynamic operation to resolve the contradiction between adaptability and interference radiation.
Solution Approach 2:
The patent changes the transmission power parameter according to the main beam direction. By establishing a correspondence between beam direction angles and maximum permissible transmission power values, the system dynamically adjusts the power parameter to maintain compliance with regulatory requirements while preserving measurement adaptability.
2Reliability
If the transmission power is increased to ensure reliable measurements, then the measurement reliability improves, but the interference with other radio services increases
Solution Approach 1:
The patent optimizes the transmission power parameter by setting maximum permissible values based on the main beam direction. This ensures sufficient power for reliable measurements while preventing excessive interference, resolving the contradiction between measurement reliability and interference radiation.
Solution Approach 2:
The control device uses feedback from the main beam direction determination to continuously adjust the transmission power. This closed-loop control ensures that the power remains at optimal levels for reliable measurement while automatically reducing power when the beam direction could cause interference.
3Object-generated harmful factors
If the transmission power is dynamically adjusted based on beam direction, then the interference radiation is minimized, but the device complexity increases
Solution Approach 1:
The control device automatically determines the main beam direction and adjusts the transmission power without requiring external intervention. The system serves itself by using its own beam direction information to control its transmission power, reducing the need for additional complex external control systems.
Solution Approach 2:
The control device performs multiple functions: it determines the main beam direction, stores the radiation pattern data, and adjusts the transmission power based on this information. By consolidating these functions in a single device, the patent reduces overall system complexity while achieving dynamic interference mitigation.
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 solution effectively reduces interference with other radio services by dynamically adjusting transmission power according to the antenna's orientation and position, ensuring reliable measurements while minimizing interference, even when the antenna is tilted or the main beam direction is changed.
Implementation Method 1
use high-frequency electromagnetic signals as emitted signals which are radiated in the direction of the product
Implementation Method 2
determine the direction of the beam of the transmitted signal
Data Source
AI summary
A level radar device with adaptive, angle-dependent transmission power adjustment, which calculates the maximum permissible transmission power of the transmitted signal on the basis of the radiation direction of the transmitted signal and the radiation characteristic of an antenna.