Integrated Microwave Barrier Transceivers for Alignment and Interference
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Solution Overview
Problem
Conventional microwave barriers require complex assembly and alignment of distinct transmitter and receiver units, with precise parameter settings, leading to increased commissioning time and susceptibility to interference, especially in environments with temperature, pressure, dust, or noise.
Innovation Solution
The use of integrated, identical microwave units functioning as both transmitters and receivers, leveraging existing wireless communication technology for bi-directional communication and interference management, with non-directional antennas and coexistence strategies to simplify structure and operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If distinct transmitter and receiver units are used, then directional microwave transmission can be achieved, but assembly and alignment complexity increases
Solution Approach 1:
The patent combines transmitter and receiver functions into a single integrated microwave unit, eliminating the need for separate units and their complex alignment. The integrated unit uses a single antenna system that both transmits and receives microwave signals, simplifying assembly while maintaining reliable directional transmission through electronic beamforming and signal processing.
Solution Approach 2:
The microwave unit is designed to perform multiple functions - both transmission and reception - within a single device. This multi-functional design eliminates the need for separate transmitter and receiver units, reducing assembly complexity while maintaining the reliability of directional microwave communication through integrated signal processing.
2Reliability
If precise parameter settings are required for transmitter and receiver units, then interference from other microwave barriers can be reduced, but commissioning time increases
Solution Approach 1:
The integrated microwave unit automatically manages its own operation, including automatic parameter adjustment and interference mitigation. The unit self-configures transmission and reception parameters, performs automatic frequency selection, and adapts to environmental conditions without requiring manual commissioning, thereby reducing commissioning time while maintaining interference resistance.
Solution Approach 2:
The system incorporates feedback mechanisms that continuously monitor microwave signal conditions and automatically adjust transmission and reception parameters. This real-time feedback enables the unit to adapt to interference from other microwave barriers dynamically, eliminating the need for manual parameter settings during commissioning while maintaining reliable operation.
3Ease of operation
If non-directional antennas are used, then alignment requirements are reduced, but susceptibility to interference from other directions increases
Solution Approach 1:
The system dynamically controls the microwave radiation pattern, switching between directional and non-directional modes as needed. The integrated unit uses electronic beamforming to create dynamic radiation patterns that adapt to the operational environment, providing easy alignment when needed while maintaining interference resistance through directional focusing when required.
Solution Approach 2:
The microwave unit dynamically changes its radiation parameters, including beam direction, width, and intensity, based on operational requirements and environmental conditions. This parameter adjustment allows the system to use non-directional patterns for easy alignment while switching to directional patterns to reject interference from specific directions, optimizing both ease of operation and interference resistance.
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 reduces manufacturing and handling complexity, enhances measurement sensitivity, and improves stability against interference and signal drifts, allowing for efficient detection of thin objects and low dielectric constants, while reducing alignment requirements and enabling cost-effective, low-power operation.
Implementation Method 1
A microwave signal is sent out on one side of the area to be monitored and received again on the other side. If an object enters this microwave path, the received microwave signal changes
Implementation Method 2
microwave barrier works in principle like a light barrier: A microwave signal is sent out
Implementation Method 3
constructing both microwave units in the same way as both transmitters and receivers. This also enables bi-directional communication for coordination, verification and data exchange
Data Source
Figure 1~3
Figure 4
AI summary
A microwave barrier (10) is described, comprising a first microwave unit (14a) with a microwave transmitter and a first antenna (16a) for emitting a microwave signal, and a second microwave unit (14b) with a microwave receiver and a second antenna (16b) for receiving the microwave signal, as well as an evaluation unit configured to detect from the received microwave signal whether an object (17) is located on the microwave path (12) between the first microwave unit (14a) and the second microwave unit (14b). The first microwave unit (14a) and the second microwave unit (14b) each have a radio frequency transceiver for emitting and receiving microwave signals, and the radio frequency transceiver is part of an integrated digital module for wireless communication.