Adaptive X-Ray Scanning for Vehicle Cab Radiation Protection
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Solution Overview
Problem
Existing security scanning inspection systems face challenges in effectively avoiding irradiation of sensitive areas, such as vehicle cabs, when performing inspections, and struggle to adapt to complex vehicle configurations like cabs in the rear or locomotives combined with passenger and freight carriages, leading to missed inspections and safety concerns.
Innovation Solution
A security scanning inspection system with a detector to identify protective attributes of objects, allowing a controller to adjust the scanning device's working mode accordingly, enabling different ray doses for various sections, and a movable scanning device to ensure accurate and safe inspections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If the driver leaves the cab before inspection, then the driver is protected from X-ray irradiation, but the inspection process becomes time-consuming and less efficient
Solution Approach 1:
The system applies different radiation doses to different spatial zones: a first (lower) radiation dose is applied to the cab area where the driver is present, and a second (higher) radiation dose is applied to the freight area that requires thorough inspection. This local differentiation allows the driver to remain in the vehicle while still protecting sensitive areas and maintaining inspection effectiveness for cargo security.
2Adaptability or versatility
If the scanning device uses a fixed radiation dose, then the inspection process is simple, but it cannot adapt to different vehicle configurations and may cause missed inspections or unnecessary driver exposure
Solution Approach 1:
The scanning device transitions from a static fixed-dose operation to a dynamic multi-mode operation. The controller dynamically selects between first and second radiation doses based on real-time detection of vehicle features (such as identifying whether a structure is a cab or freight area). This dynamic adaptation enables the system to handle various vehicle configurations including cabs at front or rear, and different freight arrangements, while automatically adjusting inspection parameters.
Solution Approach 2:
The system incorporates a detection mechanism that provides feedback about the vehicle's structural features to the controller. Based on this feedback (such as identifying the position of cabs, freight areas, and vehicle boundaries), the controller automatically adjusts the radiation dose and scanning parameters. This closed-loop feedback system enables adaptive inspection without requiring manual intervention or complex pre-programming for each vehicle type.
3Reliability
If the scanning device emits high radiation dose to all areas, then inspection thoroughness is maximized, but the driver and sensitive areas are exposed to harmful radiation
Solution Approach 1:
The system implements spatially differentiated radiation dosing where the cab area receives a first (lower) radiation dose sufficient for detecting anomalies in the driver's compartment, while the freight area receives a second (higher) radiation dose for thorough cargo inspection. This local quality approach ensures inspection reliability is maintained in both zones while minimizing harmful radiation exposure to the driver and sensitive areas.
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 system effectively avoids sensitive areas, reduces missed inspections, and enhances adaptability to various vehicle configurations, ensuring safety and efficiency by adapting to different protective attributes and vehicle types.
Implementation Method 1
an X-ray security scanning inspection system is usually used to perform a security inspection on passing vehicles
Data Source
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AI summary
The present disclosure relates to a security scanning inspection system and method. The security scanning inspection system comprises a detector, a scanning device (1) and a controller, wherein the detector is configured to detect a protective attribute of an object to be inspected (2; 2'); the scanning device (1) is movably arranged and the scanning device (1) is configured to emit a scanning ray during movement to perform a security scanning inspection on the object to be inspected (2; 2'), the scanning device (1) comprising at least two working modes, wherein a dose of a scanning ray in each working mode is different from a dose of a scanning ray in any other working modes; and the controller configured to select a working mode of the scanning device (1) according to the protective attribute of the object to be inspected (2; 2') detected by the detector.