The X-ray container security inspection system adopts front-end avoidance technology to ensure worry free security inspection

introduction

With the continuous development of global trade, container transportation has become an important link connecting the economies of various countries. However, container transportation also brings security challenges, such as increasing risks of terrorist attacks and smuggling of prohibited goods. In order to ensure transportation safety, governments and logistics companies around the world have introduced advanced security inspection technologies, among which the X-ray container security inspection system has become the mainstream choice due to its advantages of high efficiency, non-contact, and non-destructive testing. This article will focus on exploring the X-ray container security inspection system, especially the front-end avoidance technology used, how to ensure that the security inspection process is both efficient and safe.


Overview of X-ray Container Security Inspection System

Basic principles

The X-ray container security inspection system mainly uses the principle of X-ray radiation imaging. The fan-shaped radiation emitted by the radiation device penetrates the enclosed carriage and its loaded goods, and is received by the detector installed on the other side. Due to the varying degrees of absorption of X-rays by different items, the signal intensity output by the detector also varies. After image processing, the outline and shape images of the loaded items on the vehicle can be generated and displayed on the computer screen. By watching the video, it is possible to distinguish between mixed and unloaded situations, achieving the purpose of inspection.

system composition 

The X-ray container security inspection system usually consists of the following subsystems:

Radiation source subsystem: mainly includes X-ray tube, high-voltage power supply, collimator, cooling device, light valve and driving device, housing and other components. The X-ray source device is installed in the X-ray source box to generate X-rays.

Radiation detector subsystem: including radiation detector and lead shielding body. Detectors are often designed in a gantry or column style, arranged in an orderly manner, and shielded with lead plates on the back and sides to improve detection accuracy and safety.



Data imaging control subsystem: including data acquisition and real-time imaging, image and data management, vehicle position sensing, system operation monitoring, and other parts. This subsystem is responsible for processing the signals output by the detector, generating and displaying images, and monitoring the overall operating status of the system.

Technical advantages

Compared with traditional security inspection methods, the X-ray container security inspection system has the following significant advantages:

Non contact detection: No need to unpack or unload, reducing labor and time consumption.

Non destructive testing: will not cause any damage to the inspected item.

Efficient and accurate: It can quickly generate clear images, making it easy for operators to quickly identify prohibited and dangerous goods.

High safety: protective measures such as lead shielding are adopted to ensure the safety of operators and the surrounding environment.

Introduction of Front Avoidance Technology

Technical background

In traditional X-ray container security inspection systems, vehicles need to be completely parked within the inspection area and scanned through fixed detection equipment. However, this approach has some issues: firstly, vehicles need to park frequently, which affects traffic efficiency; Secondly, for large vehicles, especially those that exceed the length of the detection area, it may not be possible to complete the scan in one go, requiring multiple vehicle movements, which increases operational difficulty and time costs.

In order to solve these problems, the technology of front collision avoidance has emerged. This technology adjusts the layout and scanning method of detection equipment, allowing vehicles to complete scanning while driving, greatly improving security inspection efficiency and traffic capacity.

working principle

The core of the front-end avoidance technology lies in adjusting the position of the X-ray source and detector, as well as optimizing the scanning algorithm, so that the vehicle only needs the front-end avoidance detection equipment to achieve comprehensive scanning of the carriage and cargo during driving. The specific steps are as follows:

Vehicle entering detection area: The vehicle enters the pre-set detection area at a lower speed.

Front end avoidance: When the vehicle approaches the detection equipment, the front part of the vehicle is avoided to one side through the traffic guidance system or driver operation, leaving enough space for the detection equipment.

Scanning begins: While the front of the car is avoiding, the X-ray source begins to emit fan-shaped rays that penetrate the carriage and cargo, and are received by the detector.

Data acquisition and imaging: The signals received by the detector are processed to generate images and displayed on a computer screen. Operators can view images through video to determine whether there are prohibited or dangerous goods in the carriage.

Vehicle leaving detection area: After scanning is completed, the vehicle continues to drive away from the detection area.



Technical advantages

The introduction of front-end avoidance technology has brought the following significant advantages to the X-ray container security inspection system:

Improve traffic efficiency: Vehicles can complete scanning without completely stopping, greatly reducing security check time and improving traffic efficiency.

Reduced operational difficulty: Reduced the number of vehicle movements and the workload of operators, lowering operational difficulty and error rates.

Enhanced adaptability: For vehicles of different lengths and types, the front avoidance technology can achieve effective scanning, enhancing the adaptability and flexibility of the system.