摘要:
The present invention provides a method and apparatus for processing signals of a semiconductor detector, including: acquiring a relationship of a time difference between anode and cathode signals of the semiconductor detector with an anode signal amplitude; obtaining an optimal data screening interval according to the relationship of the time difference between anode and cathode signals of the semiconductor detector with the anode signal amplitude, wherein the optimal data screening interval is an interval where the time difference between the anode and cathode signals is greater than 50 ns; and screening and processing the collected data according to the optimal data screening interval when the semiconductor detector collects data. The present invention better overcomes the inherent crystal defects of the detector, reduces the effect of background noise, increases the energy resolution of the cadmium zinc telluride detector under room temperature, and improves the peak-to-compton ratio.
摘要:
The present disclosure provides a low-angle self-swinging type computed tomography (CT) apparatus, which is provided with an X-ray accelerator and a plurality of rows of detectors and is configured to include a slip ring, such that the slip ring with the accelerator and the detectors thereon is capable of performing a single-pendulum reciprocating movement while an objected to be inspected passes through the slip ring, a three dimension CT image of the object is displayed, thereby achieving accurate inspection for large-scale objects, such as van containers.
摘要:
The present invention discloses a vehicle inspection system comprising:- a radiation source, an inspection passage (101) enabling a vehicle to pass, a dragging system (100) comprising a first (111) and a second dragging means (112) arranged along a vehicle dragging direction (E); in this direction, the first dragging means is arranged at the upstream of the second dragging means, and a separating section (113) is arranged between these dragging means, so these dragging means are separated by a preset distance. The first and second dragging means (111;112) include a supporting plate , an elongated traction element and a pushing element connected therewith. These elongated traction elements are continuous and integrated, thus the elongated traction elements and pushing elements extends on the separating section; the supporting plates of the dragging means are separated and two pieces type. No supporting plate is provided on the separating section.
摘要:
The present invention discloses a vehicle dragging system, comprising: a first dragging means (111) and a second dragging means (112), which are sequentially arranged along a vehicle dragging direction (E), wherein in the vehicle dragging direction (E), the first dragging means (111) is arranged at the upstream of the second dragging means (112), and a separating section (113) is arranged between the first dragging means (111) and the second dragging means (112), so that the first dragging means (111) is separated from the second dragging means (112) by a preset distance in the vehicle dragging direction(E), wherein the first dragging means (111) comprises a first supporting plate (1111), a first elongated traction element (114) and a first pushing element (1141) connected with the first elongated traction element (114), and the first pushing element (1141) is adapted to move around the first supporting plate (1111) for pushing wheels to move along the first supporting plate (1111), in order to drive a vehicle to advance; the second dragging means (112) comprises a second supporting plate (1121), a second elongated traction element (114) and a second pushing element (1141) connected with the second elongated traction element (114), and the second pushing element (1141) is adapted to move along the second supporting plate (1121) for pushing wheels to move along the second supporting plate (1121), in order to drive the vehicle to advance.
摘要:
The present invention discloses a human body security inspection apparatus and a corresponding method. Specifically, the apparatus comprises: a human body security inspection device (1), configured to scan the human to be inspected (2) in order to inspect whether the human to be inspected (2) carries prohibited articles; a KINECT sensor (3), configured to real-timely acquire information about the human to be inspected (2) so that the human body security inspection device (1) is capable of real-timely acquiring the information of the human to be inspected (2) by means of the KINECT sensor (3), so as to determine whether the information conforms to requirements of the human body security inspection device (1); and a data processing device (4), configured to communicate with the human body security inspection device (1) and the KINECT sensor (3), in order to real-timely analyse and process the information of the human to be inspected (2).
摘要:
A human body back-scattering inspection system is disclosed. The system comprises a flying-spot forming unit configured to output beams of X-rays, a plurality of discrete detectors which are arranged vertically along a human body to be inspected, and a controlling unit coupled to the flying-spot forming unit and the plurality of detectors, and configured to generate a control signal to control the flying-spot forming unit and the plurality of detectors to perform a partition synchronous scan on the human body to be inspected vertically. The present disclosure utilizes the geometry property of the human body back-scattering inspection system, and proposes a multiple-point synchronous scan mechanism which largely accelerates the inspection of human body.
摘要:
The present invention discloses a three-dimensional data processing and recognizing method. It comprises following steps of: scanning and reconstructing objects to be detected so as to obtain three-dimensional data for recognition of the objects to be detected; extracting data matching to features from the three-dimensional data, so that the extracted data constitute an interested target; with respect to the data matching to features, merging and classifying adjacent data points as one group, to form an image of the merged interested target; recognizing a cross section of the interested target; cutting the interested targets by at least one perpendicular plane which passes through a central point of the cross section and is perpendicular to it, in order to obtain a graph; and recognizing shape of the interested targets based on property of the graph.