Handheld Millimeter Wave Imaging Device for Portable Security Scanning
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Solution Overview
Problem
Existing active millimeter wave imaging systems are large, non-portable, and costly, making them difficult to use and popularize for security inspections.
Innovation Solution
A portable security inspection device with a hand-held body equipped with a millimeter wave transmitting circuit, array antenna, and receiving circuit, which generates and processes millimeter wave signals for imaging, allowing for flexible and efficient security scanning of objects.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If existing active millimeter wave imaging systems are used, then high-quality imaging is achieved, but the system size is large and portability is poor
Solution Approach 1:
The patent divides the millimeter wave imaging system into multiple independent modules: transmitting antenna array, receiving antenna array, transmitting circuit, receiving circuit, and processing unit. Each module can be independently designed and optimized, allowing the overall system to be compact while maintaining imaging quality through coordinated operation of segmented components.
Solution Approach 2:
The patent integrates the transmitting and receiving circuits, antenna arrays, and processing units into a single integrated device housing. This merging of previously separate system components into one compact unit reduces overall system size while maintaining the functional capabilities needed for high-quality millimeter wave imaging.
2Measurement precision
If existing active millimeter wave imaging systems are used, then high-quality imaging is achieved, but the cost is high
Solution Approach 1:
The patent employs mass-producible millimeter wave transmitting and receiving circuits along with standardized antenna elements that can be manufactured at low cost using conventional PCB and antenna fabrication techniques. This approach replaces expensive custom-built components with affordable, mass-producible parts while maintaining sufficient imaging performance.
Solution Approach 2:
The patent optimizes system parameters such as operating frequency, antenna element spacing, and signal processing algorithms to achieve high-quality imaging with lower-cost hardware configurations. By carefully selecting and adjusting these parameters, the system maintains imaging quality while reducing manufacturing costs.
3Measurement precision
If existing active millimeter wave imaging systems are used, then imaging capability is achieved, but portability is poor and ease of operation is reduced
Solution Approach 1:
The patent designs the device with a portable, handheld form factor that can be dynamically positioned and maneuvered by operators. The system includes movable antenna arrays and flexible signal processing capabilities that adapt to different scanning positions and angles, enabling easy portability and operation while maintaining imaging capability.
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 device provides high-quality imaging while being compact, portable, and cost-effective, enabling efficient security inspections of local parts of the human body or objects, replacing traditional metal detectors and X-ray imaging instruments.
Implementation Method 1
a millimeter wave transmitting circuit, wherein the millimeter wave transmitting circuit is arranged on the hand-held body and is used for generating a millimeter wave transmitting signal
Implementation Method 2
a millimeter wave array antenna, wherein the millimeter wave array antenna is arranged on the hand-held body and is used for transmitting the millimeter wave transmitting signal to a detected object and receiving an echo signal reflected by the detected object
Implementation Method 3
a millimeter wave receiving circuit, wherein the millimeter wave receiving circuit is arranged on the hand-held body and is used for processing the echo signal and converting the echo signal into image data of the detected object
Data Source
AI summary
A portable security inspection device based on millimetre wave imaging comprising a hand-held body, wherein the hand-held body is provided with a millimetre-wave transmitting circuit for generating a millimetre-wave transmitting signal, a millimetre-wave array antenna for transmitting the millimetre-wave transmitting signal to a detected object and for receiving an echo signal reflected by the detected object, and a millimetre-wave receiving circuit for processing the echo signal and converting the echo signal into image data of the detected object.