Real dual-energy multi-view X ray luggage explosive substance automatic detection device

Abstract

The invention discloses a real dual-energy multi-view X ray luggage explosive substance automatic detection device, which comprises a system control and signal processing circuit unit, a comprehensive processing computer, a detection unit, a conveyer and a conveying passage, wherein the detection unit is arranged in the conveying passage and comprises a left bottom photo prospective module adopting a real dual-energy X ray detecting mode as well as a left top photo prospective module and a right bottom prospective module both of which adopt a one-source dual-detection dual-energy X ray detecting mode. During use, the conveyer conveys luggage to the conveying passage, three-view X rays perform the transmission scanning of the luggage, the detector receives a signal and transmits the signal to the system control and signal processing circuit unit for processing, the result of the processing is transmitted to the comprehensive processing computer, the automatic detection of the explosive substances in the luggage is performed in the comprehensive processing computer, and the detection results are displayed on the comprehensive processing computer. The device has the advantages of high detection precision, quick detection, high detection sensitivity and strong interference-resistance capability.

Description

technical field [0001] The invention relates to a dangerous article detection device, in particular to a detection device for automatic detection of luggage explosives by using dual-energy X-rays. Background technique [0002] At present, it has become a security measure widely used in the world to carry out security checks on luggage carried by people passing through important entrances and exits, and for luggage security checks, the device for security checks using X-rays is currently the most widely used one. In recent years, X-ray safety inspection devices have developed rapidly due to the needs of aviation, railway, and customs security. [0003] In the earliest used X-ray security inspection devices, it adopts single-view single-energy X-ray technology. This type of inspection device is usually mainly composed of a single X-ray generator, collimator, detector, channel, conveyor belt and box. When the system is working, the conveyor belt will send the luggage to be ins...

AI Technical Summary

Problems solved by technology

[0007] Now, multi-view X-ray detection devices have been applied in medical and industrial inspection. The layout adopts two bottom viewing angles and one horizontal angle of view. The advantage of this layout is that the correlation of each angle of view in the channel is small, which is conducive to the three-dimensional reconstruction of the object under inspection. However, this multi-angle layout is easy to cause horizontal placement. The items in the luggage overlap seriously, and it is difficult to extract the features of the inspected object in the projection images of each angle

In addition, the multi-view X-ray automatic detection device for explosives of German Heimann Company adopts the five-view working mode of 3 sources and 5 probes, and adopts 2 bottom radiation sources and 1 top radiation source in the multi-view layout. Each bottom radiation source corresponds to two sets of detectors, and the top radiation source corresponds to one set of detectors, forming a total of five viewing angles. This multi-view device performs three-dimensional reconstruction through the projection images of five viewing angles. The advantage is that the reconstruction is redundant. The degree of ambiguity is large and the degree of ambiguity is small, but the feature matching of the five viewing angles is difficult

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