Movable detection device and detection method

Patent metadata

Field	Value
Publication number	US-12281994-B2
Application number	US-202118012866-A
Country	US
Kind code	B2
Filing date	Jun 23, 2021
Priority date	Jun 23, 2020
Publication date	Apr 22, 2025
Grant date	Apr 22, 2025

Abstract

A mobile detection device and a detection method are provided. The mobile detection device includes: a bearing platform, being arranged fixedly, and including a bearing surface bearing an object to be detected; a movable gantry, located on a side of the bearing surface bearing the object to be detected and configured to be movable relative to the bearing platform; a movable bearing device, located on a side of the bearing surface away from the movable gantry and configured to be movable relative to the bearing platform; a first radiation source, arranged on one of the movable gantry and the movable bearing device, and a first detector array, arranged opposite to the radiation source and arranged on the other of the movable gantry and the movable bearing device, wherein the movable gantry and the movable bearing device are configured to be moved synchronously relative to the bearing platform.

First claim

What is claimed is:

1. A mobile detection device, comprising:
a bearing platform, being arranged fixedly, and comprising a bearing surface for bearing an object to be detected;
a movable gantry, located on a side of the bearing surface bearing the object to be detected and configured to be movable relative to the bearing platform, wherein the movable gantry comprises: a crossbeam, arranged substantially parallel to the bearing surface, and an upright column, configured to support the crossbeam, and wherein the upright column comprises: a first upright column and a second upright column, respectively connected with both end portions of the crossbeam;
a movable bearing device, located on a side of the bearing surface away from the movable gantry and configured to be movable relative to the bearing platform;
a first radiation source, arranged on the movable bearing device, wherein a ray for detection emitted by the first radiation source is a surface-shaped ray beam perpendicular to the bearing surface;
a first detector array, arranged opposite to the first radiation source, and arranged on the crossbeam and arranged toward the bearing platform, so as to form a detection image of an upward viewing angle;
a second radiation source, arranged on one of the first upright column and the second upright column, wherein a ray for detection emitted by the second radiation source is a surface-shaped ray beam parallel to the bearing surface; and
a second detector array, arranged opposite to the second radiation source, and arranged on the other of the first upright column and the second upright column, so as to form a detection image of a horizontal viewing angle,
wherein the movable gantry and the movable bearing device are configured to be moved synchronously relative to the bearing platform,
wherein the detection image of the upward viewing angle and the detection image of the horizontal viewing angle are integrated into a stereoscopic detection image.

2. The mobile detection device according to claim 1 , further comprising:
a first moving assembly, mounted between an end portion of the upright column facing the bearing platform and the bearing platform, and configured to allow the movable gantry to move relative to the bearing platform through the first moving assembly.

3. The mobile detection device according to claim 2 , wherein the first mobile assembly comprises:
a first guide rail, arranged on a surface of the bearing platform facing the movable gantry; and
a first moving component, arranged at the end portion of the upright column facing the bearing platform, and cooperating with the first guide rail.

4. The mobile detection device according to claim 1 , wherein the bearing platform comprises an accommodation space located on a side of the bearing surface away from the movable gantry, and the movable bearing device is arranged within the accommodation space.

5. The mobile detection device according to claim 4 , further comprising:
a second moving assembly, arranged between a surface of a side of the movable bearing device away from the movable gantry and the bearing platform and configured to allow the movable bearing device to move relative to the bearing platform through the second moving assembly.

6. The mobile detection device according to claim 5 , wherein the second mobile assembly comprises:
a second guide rail, arranged on a surface of the bearing platform bearing the movable bearing device; and
a second moving component, arranged on the surface of the side of the movable bearing device away from the movable gantry, and cooperating with the second guide rail.

7. The mobile detection device according to claim 1 , further comprising:
a control device, configured to control the movable gantry and the movable bearing device to be moved synchronously relative to the bearing platform along a first direction.

8. The mobile detection device according to claim 7 , wherein the control device comprises:
a first control device, configured to control a moving speed of the movable gantry relative to the bearing platform along the first direction in real time; and
a second control device, configured to control a moving speed of the movable bearing device relative to the bearing platform along the first direction in real time.

9. The mobile detection device according to claim 8 , further comprising:
a first distance measuring device, configured to measure a first real-time distance between a fixed reference point on the bearing platform and the movable gantry along the first direction in real time; and
a second distance measuring device, configured to measure a second real-time distance between the fixed reference point on the bearing platform and the movable bearing device along the first direction in real time.

10. The mobile detection device according to claim 9 , wherein,
with the first real-time distance being taken as a benchmark, the second control device is configured to control the moving speed of the movable bearing device relative to the bearing platform along the first direction in real time, so that the movable gantry and the movable bearing device are moved synchronously relative to the bearing platform along the first direction, or
with the second real-time distance being taken as a benchmark, the first control device is configured to control the moving speed of the movable gantry relative to the bearing platform along the first direction in real time, so that the movable gantry and the movable bearing device are moved synchronously relative to the bearing platform along the first direction.

11. A detection method, using a mobile detection device according to claim 1 , the method comprising:
arranging the object to be detected on the bearing surface of the bearing platform;
activating the first radiation source; and
moving the movable gantry and the movable bearing device synchronously.

Assignees

• Nuctech Co Ltd
• Nutech Company Ltd

Inventors

• Gao Kejin
• Zong Chunguang
• Hu Yu
• Sun Shangmin
• Song Quanwei
• Shi Junping

Classifications

• G01N2223/3303

  object fixed; source and detector move · CPC title

• G01N23/083

  the radiation being X-rays · CPC title

• G01N23/04 Primary

  and forming images of the material · CPC title

• G01V5/232 Primary

  having relative motion between the source, detector and object other than by conveyor (G01V5/226 takes precedence) · CPC title

• G01N23/10 Primary

  the material being confined in a container, e.g. in a luggage X-ray scanners · CPC title