Millimeter Wave Security Scanner With Movable Transceiver
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Solution Overview
Problem
Existing millimeter wave security inspection systems require multiple transceiving arrays or human rotation, leading to high costs and reduced throughput, as they struggle to efficiently scan both sides of a human without compromising the passing rate.
Innovation Solution
A millimeter wave security inspection apparatus with a door device and a movable millimeter wave transceiver, utilizing a single linear driver to position a millimeter wave transceiving antenna array between two doors, allowing simultaneous scanning of both sides of an object without rotation, using a switch to alternate between antenna subarrays for efficient data processing and holographic image generation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of moving object
If two millimeter wave transceiving arrays are used to scan both sides of the human, then the scanning coverage is improved, but the cost increases
Solution Approach 1:
The patent combines the functions of two separate transceiving arrays into a single array that can scan both sides of the human body. The single array alternates between scanning the front side and back side, merging what would have been two separate systems into one, thereby reducing cost while maintaining comprehensive scanning coverage.
Solution Approach 2:
The patent introduces dynamic operation to a previously static system. The single transceiving array dynamically switches between scanning different sides of the human body, changing its operational state to cover multiple areas sequentially. This dynamic approach allows one array to perform the work of two static arrays.
2Device complexity
If only one millimeter wave transceiving array is used, then the cost is reduced, but the human needs to turn, thereby reducing the passing rate
Solution Approach 1:
The patent makes the single transceiving array dynamic by enabling it to switch between scanning the front and back sides of the human body without requiring the human to rotate. The array itself changes its scanning direction and target, maintaining high productivity while using minimal hardware.
Solution Approach 2:
The patent adds the dimension of time to the scanning process. Instead of using multiple arrays to scan different sides simultaneously, the single array scans different sides at different times, utilizing the time dimension to achieve comprehensive coverage without increasing spatial hardware requirements.
3Device complexity
If the human needs to turn to scan both sides, then a single array can be used, but the inspection efficiency is reduced
Solution Approach 1:
The patent introduces dynamic switching capability to the single transceiving array, allowing it to adaptively change its scanning target between front and back sides. This dynamic behavior eliminates the need for human rotation while maintaining inspection efficiency, as the array continuously scans without interruption.
Solution Approach 2:
The patent ensures continuous scanning action by having the single array alternate between front and back side scanning without interruption. The useful action of scanning continues uninterrupted, merely changing its target, thereby maintaining high inspection efficiency without requiring the human subject to stop and rotate.
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 configuration reduces costs and increases the passing rate by enabling simultaneous scanning of both sides without human rotation, while maintaining a compact footprint and improving inspection efficiency through automated data processing and isolation control.
Implementation Method 1
a millimeter wave transceiver provided between the first door and the second door and comprising an millimeter wave transceiving antenna array configured to transmit a millimeter wave signal to an entrance side and an exit side of the door device, respectively, and to receive the millimeter wave signal reflected from the entrance side and the exit side of the door device
Implementation Method 2
each of the first door and the second door being made of a material allowing a millimeter wave to penetrate there through
Data Source
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AI summary
The disclosure discloses a millimeter wave security inspection apparatus (100) and a method for inspecting human or article. The apparatus includes: a door device (10) including a first door and a second door arranged in a stacked mode and each made of a material allowing a millimeter wave to penetrate there through; a millimeter wave transceiver (20) arranged between the first door and the second door and including an millimeter wave transceiving antenna array configured to transmit and receive a millimeter wave signal to and from an entrance side and an exit side of the door device; and a linear driver (30) to which the millimeter wave transceiver is connected to be movable relative to the door device, so as to scan a first side of an object positioned at the entrance side and a second side of the object opposite to the first side positioned at the exit side.