Wi-Fi Transceiver Sharing Hardware for Radar Sensing
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Solution Overview
Problem
High-performance radar sensors are expensive, and radar signals are often interfered with by other electronic devices in indoor environments, posing a challenge for low-cost radar detection in applications like smart homes, security monitoring, and healthcare.
Innovation Solution
A wireless transceiver integrating Wi-Fi and radar functions, allowing operation in either mode, with shared components for both, using time-division multiplexing to alternately operate in Wi-Fi and radar modes, reducing manufacturing costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If high-performance radar sensors are used for radar detection, then detection performance is improved, but manufacturing cost increases
Solution Approach 1:
The patent implements a dual-mode transceiver that can operate in both Wi-Fi communication mode and radar detection mode using the same hardware components. The transceiver includes a transmitter that can generate both Wi-Fi signals and radar signals, and a receiver that can process both types of signals. This multi-functionality allows the system to achieve high-performance radar detection without requiring separate dedicated radar sensors, thereby reducing manufacturing costs while maintaining detection performance
Solution Approach 2:
The patent merges Wi-Fi communication functions and radar detection functions into a single integrated transceiver unit. By combining the transmitter, receiver, and signal processing components for both functions into one system, the patent eliminates the need for separate high-cost radar sensors, achieving cost-effective radar detection through component sharing and functional integration
2Measurement precision
If dedicated radar sensors are used for radar detection, then detection accuracy is improved, but device complexity increases
Solution Approach 1:
The transceiver is designed with multi-functionality to perform both Wi-Fi communication and radar detection using the same hardware components. The transmitter can generate both Wi-Fi signals and radar signals, and the receiver can process both types of signals. This approach maintains detection accuracy while avoiding the need for separate dedicated radar sensor systems, thereby reducing overall device complexity
Solution Approach 2:
The patent combines Wi-Fi communication functions and radar detection functions into a single integrated transceiver unit with shared components. By merging the transmitter, receiver, and signal processing pathways, the system achieves accurate radar detection without duplicating hardware, thus simplifying the overall device architecture
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 integrated transceiver achieves lower manufacturing costs and effective radar detection by sharing components for Wi-Fi and radar operations, while maintaining performance in both modes.
Implementation Method 1
The wireless communication device is capable of operating in a Wi-Fi mode or in a radar mode. When the wireless communication device operates in the radar mode, the transceiver circuit detects a presence and/or characteristics of an object by receiving a reflected signal
Implementation Method 2
emit high-frequency electromagnetic waves and analyze the reflected signals to determine the location, movement, and other characteristics of objects based on the time delay, strength, and frequency shift of the reflected signals
Data Source
AI summary
The present invention provides a wireless communication device comprising a transceiver circuit having a transmitter and a receiver. The wireless communication device is capable of operating in a Wi-Fi mode or in a radar mode. When the wireless communication device operates in the radar mode, the transceiver circuit detects a presence and/or characteristics of an object by receiving a reflected signal by the receiver. When the wireless communication device operates in the Wi-Fi mode, the transceiver circuit transmits and receives Wi-Fi signals.