Vehicle Detection System Using 3D Detector Nesting
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Solution Overview
Problem
Existing vehicle detection systems with top view imaging require a thick transverse detector arm for centripetal detector arrangement, making it difficult for small vehicles to pass and necessitating extensive construction work for trench installation.
Innovation Solution
The vehicle detection system features transverse detectors arranged in a straight line within a thin transverse detector arm on the ground, with vertical detectors disposed symmetrically around a radiation source, reducing the arm's thickness and allowing easier vehicle passage while minimizing construction requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If detectors are arranged in a centripetal manner on a transverse detector arm, then detection capability is improved, but the arm thickness increases making it difficult for small vehicles to pass
Solution Approach 1:
The patent transitions from a two-dimensional centripetal arrangement of detectors to a three-dimensional configuration where detectors are positioned at multiple depths within the detector arm. This allows the arm thickness to be reduced while maintaining sufficient detector coverage for effective vehicle detection.
Solution Approach 2:
The patent employs a nested arrangement where detectors are positioned at different depths within the detector arm structure, with some detectors located deeper than others. This nested configuration allows for reduced arm thickness while maintaining comprehensive detection coverage through multiple detector layers.
2Measurement precision
If detectors are arranged in a centripetal manner, then detection precision is improved, but extensive construction work for trench installation is required
Solution Approach 1:
The patent divides the detector array into multiple independent detector units positioned at different locations and depths within the detector arm. This segmentation allows for modular installation and reduces the complexity of construction work while maintaining detection precision through the coordinated operation of multiple detector segments.
3Area of stationary object
If a thick transverse detector arm is used for centripetal detector arrangement, then detection coverage is improved, but small vehicles cannot pass through easily
Solution Approach 1:
The patent applies local quality by positioning detectors at specific strategic locations and depths within the detector arm rather than requiring uniform thick coverage throughout. This allows detection coverage to be maintained at critical areas while reducing the overall arm thickness to facilitate easy vehicle passage.
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 enables small vehicles to pass through with ease and reduces the amount of construction needed, maintaining effective detection capabilities by forming clear images of the vehicle's interior.
Implementation Method 1
The radiation source is disposed above the transverse detector arm and may emit rays such as X-rays or γ-rays that can penetrate through the vehicle
Implementation Method 2
the detector may receive radiation from the radiation source to form an image of the interior of the vehicle
Data Source
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AI summary
A vehicle detection system includes a transverse detector arm (1), two vertical detector arms (2), a radiation source (3), a plurality of transverse detectors (4), and a plurality of vertical detectors (5). The transverse detector arm (1) may be disposed on the ground. Two vertical detector arms (2) are disposed at both ends of the transverse detector arm (1). The radiation source (3) is located above the transverse detector arm (1). A plurality of transverse detectors (4) are disposed within the transverse detector arm (1) and are laid along a length direction of the transverse detector arm (1) for receiving radiation emitted by the radiation source. The plurality of vertical detectors (5) are symmetrically disposed on the two vertical detector arms (2), and each of the vertical detectors (5) is disposed towards a center point of the radiation source (3) for receiving radiation emitted by the radiation source.