Radiation source control method and rapid-pass security check system

Abstract

The invention discloses a radiation source control method which comprises after the radiation source starts to emit the first radiation beam to scan the object to be detected, acquiring a detector signal through a radiation beam detector; carrying out the image recognition processing on the detector signals through an image recognition algorithm to detect whether the current scanning position is the boundary position of the object to be detected; and when detecting that the current scanning position is the boundary position of the object to be detected, controlling the radiation source to start to emit the second radiation beam. The invention further discloses a rapid-pass security check system. By means of the method and the device, the boundary position of the vehicle cab and the cargo area can be determined accurately and rapidly.

Description

[0001] This invention is a divisional application of the invention patent application with the application number: 201610102115.0, the application date: February 24, 2016, and the title: "A Radiation Source Control Method and Speed-through Security Inspection System". technical field [0002] The invention relates to the technical field of radiation imaging, in particular to a radiation source control method and a speed-through security inspection system using the method. Background technique [0003] In the vehicle safety inspection process, the non-stop inspection technology based on the automatic scanning process control of the radiation source has a very high pass rate, and the safety inspection efficiency is high. In non-stop inspection technology, in order to ensure the safety of the driver in the cab, it is necessary to avoid radiation in the cab, that is, only when the cab leaves the radiation inspection position is it allowed to emit high-energy, high-dose-rate radia...

AI Technical Summary

Problems solved by technology

[0004] At present, most of the radiation source control schemes used for vehicle non-stop inspection use ground sensing coils, light curtains, photoelectric sensors, laser distance sensors, laser scanners and other hardware devices to identify the location of the cab, which can meet the needs of use to a certain extent, but There are also the following disadvantages: on the one hand, hardware devices such as sensors need to be specially installed and arranged, the initial investment cost is high, and various devices are easily affected by the environment (such as rain, snow, sand, etc.), the failure rate of equipment is high, and the maintenance cost is high. On the other hand, hardware devices such as sensors are susceptible to recognition errors due to the influence of vehicle decorations, coverings, etc., resulting in missed scanning of the cargo compartment, or even wrong scanning of the cab

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