Abstract: A security inspection device, a security inspection system and a security inspection method are provided, the device includes: a support frame defining an inspection channel; a first X-ray accelerator provided at a position of a top portion of the support frame and the position is offset from a centerline of the inspection channel, where the first X-ray accelerator is configured to radiate a first X-ray towards the inspection channel to inspect an object; a second X-ray accelerator configured to radiate a second X-ray to the inspection channel to inspect the object; and a detector apparatus, including: detector modules provided on the support frame and facing the first X-ray accelerator and the second X-ray accelerator, the detector modules receive the first X-ray and/or the second X-ray to form a transmission image of the object; the first X-ray, the second X-ray, and the detector modules are located in the same plane.

Abstract: A mobile radiation inspection apparatus includes a vehicle body, a traveling mechanism, a boom assembly, a first imaging device, and a second imaging device. The boom assembly is mounted on the vehicle body and is configured to switch between an inspection state and a transportation state. The first imaging device includes a first ray source and a first ray detector both mounted on the boom assembly. The first ray source is positioned at the top of an inspection channel. The second imaging device includes a second ray source and a second ray detector. The second ray detector cooperates with the second ray source to detect rays emitted by the second ray source, and the second ray source is positioned on a side surface of the inspection channel. The mobile radiation inspection apparatus implements multi-angle and multi-mode scanning.

Abstract: This disclosure provides a vehicle inspection method, apparatus, system, and computer-readable storage medium and relates to the field of security inspection technologies. The vehicle inspection method of the present disclosure includes: acquiring vehicle profile information of a vehicle through a first sensor that performs measurement in a direction perpendicular to a passage, and determining a feature point of the vehicle according to the vehicle profile information; determining a position of the vehicle in the passage through a second sensor that performs measurement in a direction along the passage, and determining a position of the feature point according to the position of the vehicle in the passage; and switching an operating mode of a ray source based on a preset strategy according to a position relation between the position of the feature point and the ray source.

Abstract: The present disclosure relates to a train identification system and method, and a train safety inspection system and method. The train identification system includes: a remote detection component, configured to acquire overall feature information of an inspected train through remote monitoring; and an identification device, configured to determine at least one of a type and a traveling situation of the inspected train according to the acquired overall feature information.

Abstract: The present disclosure relates to a security scanning inspection system and method. The security scanning inspection system comprises a detector, a scanning device and a controller, wherein the detector is configured to detect a protective attribute of an object to be inspected; the scanning device is movably arranged and the scanning device is configured to emit a scanning ray during movement to perform a security scanning inspection on the object to be inspected, the scanning device comprising at least two working modes, wherein a dose of a scanning ray in each working mode is different from a dose of a scanning ray in any other working modes; and the controller configured to select a working mode of the scanning device according to the protective attribute of the object to be inspected detected by the detector.

Abstract: The present disclosure provides a radiation inspection apparatus and a radiation inspection method. The radiation inspection apparatus includes: a radiation inspection device comprising a ray source and a detector that cooperates with the ray source to perform scanning inspection on an object to be inspected, the radiation inspection device having an inspection channel for the object to be inspected to pass through when scanning inspection is performed thereon; and traveling wheels provided at the bottom of the radiation inspection device to enable the radiation inspection apparatus to travel in an extension direction of the inspection channel, and the traveling wheels are configured to rotate 90° to enable the radiation inspection apparatus to travel in a direction perpendicular to the extension direction of the inspection channel.

Abstract: The present disclosure provides a laser speed measuring method, control device and a laser velocimeter, and relates to the technical field of security inspection. The laser speed measuring method comprises the steps of: acquiring detection data within a predetermined detection angle range in a plurality of paralleled horizontal planes having different heights, from a plurality of laser rays detected towards a road extending direction in the horizontal plane; acquiring three-dimensional point cloud data according to the detection data; determining a position of a measured object in the road extending direction according to the three-dimensional point cloud data; and determining a speed of the measured object according to the position change of the measured object along the road extending direction at different timing.

Abstract: The present disclosure relates to the technical field of CT detection, in particular to a CT inspection system and a CT imaging method. The CT inspection system provided by the present disclosure includes a scanning device and an imaging device, wherein the scanning device having a radioactive source device and a detection device is configured to rotate at a nonuniform speed in at least partial process of scanning an object to be detected; and the imaging device generates a CT image based on effective detection data, wherein the effective detection data refer to data acquired each time the detection device rotates by a preset angle. In the present disclosure, the imaging device of the CT inspection system generates a CT image based on data acquired each time the detection device rotates by a preset angle, which, compared with traditional image collection solutions, can effectively reduce image deformation and improve accuracy of detection results.

Abstract: The present disclosure provides a radiation inspection apparatus and a radiation inspection method. The radiation inspection apparatus includes: a radiation inspection device comprising a ray source and a detector that cooperates with the ray source to perform scanning inspection on an object to be inspected, the radiation inspection device having an inspection channel for the object to be inspected to pass through when scanning inspection is performed thereon; and traveling wheels provided at the bottom of the radiation inspection device to enable the radiation inspection apparatus to travel in an extension direction of the inspection channel, and the traveling wheels are configured to rotate 90° to enable the radiation inspection apparatus to travel in a direction perpendicular to the extension direction of the inspection channel.

Abstract: This disclosure provides a vehicle inspection method, apparatus, system, and computer-readable storage medium and relates to the field of security inspection technologies. The vehicle inspection method of the present disclosure includes: acquiring vehicle profile information of a vehicle through a first sensor that performs measurement in a direction perpendicular to a passage, and determining a feature point of the vehicle according to the vehicle profile information; determining a position of the vehicle in the passage through a second sensor that performs measurement in a direction along the passage, and determining a position of the feature point according to the position of the vehicle in the passage; and switching an operating mode of a ray source based on a preset strategy according to a position relation between the position of the feature point and the ray source.

Abstract: The disclosure relates to a traction device and a traction method. The traction device includes: a support chassis; a swing arm, one end of the swing arm is rotatably connected to the support chassis by a rotating shaft such that the swing arm can be switched in a retracted state and a deployed state, wherein the swing arm in the deployed state is adapted to drive the wheel of the vehicle to rotate and tow the vehicle; a driving mechanism, connected to the swing arm, wherein the driving mechanism is capable of driving the swing arm to horizontally rotate around the rotating shaft to switch the swing arm between the retracted state and the deployed state; and a rolling assembly, disposed on a side of the support chassis and being capable of preventing the wheel from contacting with the side of the support chassis when the vehicle is towed.

Abstract: The present disclosure relates to a train identification system and method, and a train safety inspection system and method. The train identification system includes: a remote detection component, configured to acquire overall feature information of an inspected train through remote monitoring; and an identification device, configured to determine at least one of a type and a traveling situation of the inspected train according to the acquired overall feature information.

Abstract: The present disclosure relates to a security scanning inspection system and method. The security scanning inspection system comprises a detector, a scanning device and a controller, wherein the detector is configured to detect a protective attribute of an object to be inspected; the scanning device is movably arranged and the scanning device is configured to emit a scanning ray during movement to perform a security scanning inspection on the object to be inspected, the scanning device comprising at least two working modes, wherein a dose of a scanning ray in each working mode is different from a dose of a scanning ray in any other working modes; and the controller configured to select a working mode of the scanning device according to the protective attribute of the object to be inspected detected by the detector.

Abstract: The present disclosure provides a scanned image correction apparatus, method and a mobile scanning device. The apparatus includes an image collector, an arm swing detector, and an image processor. The image collector is configured to collect a scanned image of an object under inspection during a scanning process of scanning the object under inspection by the mobile scanning device, and determine an image parameter of the scanned image. The arm swing detector is disposed at a monitor point on a detector arm of the mobile scanning device, and configured to detect a displacement offset of the detector arm in a specified direction and build an arm swing model of the detector arm. The image processor is configured to determine a change relationship between the image parameter of the scanned image and the displacement offset of the detector arm, and correct the scanned image based on the change relationship.

Abstract: The present disclosure relates to the technical field of CT detection, and in particular to a CT inspection system and a CT imaging method. The CT inspection system provided by the present disclosure comprises a radioactive source device, a detection device, a rotation monitoring device and an imaging device, wherein the detection device obtains detection data at a frequency that is N times a beam emitting frequency of the radioactive source device; the rotation monitoring device detects a rotation angle of the detection device and transmits a signal to the imaging device each time the detection device rotates by a preset angle; the imaging device determines a rotational position of the detection device each time the radioactive source device emits a beam according to the signal transmitted by the rotation monitoring device and the detection data of the detection device.

Abstract: The present disclosure provides a laser speed measuring method, control device and a laser velocimeter, and relates to the technical field of security inspection. The laser speed measuring method comprises the steps of: acquiring detection data within a predetermined detection angle range in a plurality of paralleled horizontal planes having different heights, from a plurality of laser rays detected towards a road extending direction in the horizontal plane; acquiring three-dimensional point cloud data according to the detection data; determining a position of a measured object in the road extending direction according to the three-dimensional point cloud data; and determining a speed of the measured object according to the position change of the measured object along the road extending direction at different timing.

Abstract: A mobile scanning inspection system, comprising a vehicle body and an inspection arm including a cross arm and a vertical arm, wherein a first inspection device and a second inspection device are provided on the cross arm; the first inspection device is on the side close to the vehicle body and it emits a first laser inspection plane parallel to the side plane of the vehicle body, and the length of the longest portion of the first laser inspection plane is longer than the length of the vehicle body; the second inspection device is provided on the side close to the vertical arm and it emits a second laser inspection plane parallel to the side plane of the vehicle body and the second laser inspection plane is centered on the vertical arm, and extends a first preset distance and a second preset distance forward and backward.

Abstract: The disclosure relates to a traction device and a traction method. The traction device includes: a support chassis; a swing arm, one end of the swing arm is rotatably connected to the support chassis by a rotating shaft such that the swing arm can be switched in a retracted state and a deployed state, wherein the swing arm in the deployed state is adapted to drive the wheel of the vehicle to rotate and tow the vehicle; a driving mechanism, connected to the swing arm, wherein the driving mechanism is capable of driving the swing arm to horizontally rotate around the rotating shaft to switch the swing arm between the retracted state and the deployed state; and a rolling assembly, disposed on a side of the support chassis and being capable of preventing the wheel from contacting with the side of the support chassis when the vehicle is towed.

Abstract: A method and a system for fast inspecting a vehicle based on a length measuring device, including: when a subject vehicle enters an inspection region, measuring a first length and a second length of the subject vehicle; determining whether the first length and the second length is respectively larger than or equal to a preset second length threshold; if so, determining whether a gap portion of the subject vehicle between a first portion and a second portion of the subject vehicle appears in a beam emitting region formed by a beam of radiation rays emitted by the system for fast inspecting a vehicle; and when the gap portion appears in the beam emitting region, emitting a beam of radiation rays of a first radiation dose to the subject vehicle according to the gap portion, wherein the subject vehicle moves with respect to the system for fast inspecting a vehicle.

Abstract: The present disclosure relates to a method and a device for monitoring a state of a moving object and a system for fast inspecting a vehicle. The method and a device for monitoring a state of a moving object positions and measures speed of the moving object by using a laser scanner. The device includes: a laser scanner configured to monitor at least one moving object entering a monitoring region, by emitting a plurality of laser beams of different angles to the at least one moving object with a preset scanning frequency; and a processing unit configured to, for each moving object, determine and output a relative position of the moving object with respect to the laser scanner at each time instance. It can significantly improve the accuracy of measuring a low speed of the moving object, and the laser scanner is easy to install and has a low cost.