CN110749611A - Automatic adjusting support for CT equipment calibration and control system and method thereof - Google Patents
Automatic adjusting support for CT equipment calibration and control system and method thereof Download PDFInfo
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- CN110749611A CN110749611A CN201911152517.1A CN201911152517A CN110749611A CN 110749611 A CN110749611 A CN 110749611A CN 201911152517 A CN201911152517 A CN 201911152517A CN 110749611 A CN110749611 A CN 110749611A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
- G01N23/02—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material
- G01N23/04—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and forming images of the material
- G01N23/046—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and forming images of the material using tomography, e.g. computed tomography [CT]
Abstract
The invention discloses an automatic adjusting bracket for CT equipment calibration and a control system and a method thereof, wherein the automatic adjusting bracket comprises: the front end of the bed board mounting seat is connected with a horizontal plug-in unit which is used for being inserted into the bed board for fixing; the horizontal fixing seat is vertically fixed at the rear side of the bed board mounting seat, and a pose adjusting mechanism is arranged between the detection die body and the horizontal fixing seat; the pose adjusting mechanism comprises one or more of a horizontal adjusting mechanism, a left-right swinging mechanism and a pitching swinging mechanism, and is respectively used for realizing horizontal displacement, left-right swinging and pitching swinging adjustment of the detection die body relative to the horizontal fixing seat. The invention can realize the automatic adjustment of the position and the angle of the detection die body in each direction, greatly improves the efficiency and the precision of the CT equipment calibration, has high automation degree, simple and efficient operation and high applicability to various types of CT equipment, greatly reduces the manpower and material resource cost of the CT equipment calibration, and is convenient for popularization and use.
Description
Technical Field
The invention relates to an automatic adjusting bracket for CT equipment calibration and a control system and method thereof, belonging to the technical field of medical instruments.
Background
The medical CT detection die body is an indispensable diagnosis tool for installing, daily maintenance, routine correction inspection and overhaul of medical CT equipment, and the medical CT detection die body is required to be installed on a diagnosis bed to diagnose the medical CT equipment.
And the position and the angle of die body need be adjusted many times in the calibration of CT equipment installation and change bulb, in order to realize quick calibration, the position and the angle of CT detection die body in each direction need can be adjusted in a flexible way, and the position of CT detection die body apart from the scanning frame rotation center needs can change at great within range. In order to facilitate the above adjustment and change, the prior art provides various supports for mounting the CT detection phantom and realizing the position and angle adjustment of the phantom in various directions. The CT equipment correcting or calibrating support in the prior art often has different structures according to different calibrating requirements, has poor adaptability to various CT equipment models, needs manual adjustment, and has the problems of complex structure, inconvenient operation, high time consumption, low precision and the like.
Disclosure of Invention
The purpose of the invention is as follows: in order to overcome the defects in the prior art, the invention provides the automatic adjusting support for the calibration of the CT equipment, the control system and the control method thereof, the automatic adjusting support has the advantages of simple operation, low time consumption, high precision and the like, can realize the automatic adjustment of the position and the angle of the CT detection die body in each direction, and has high automation degree and good applicability.
The technical scheme is as follows: in order to achieve the purpose, the invention adopts the technical scheme that:
an automatic adjusting bracket for CT equipment calibration comprises a bed plate mounting seat, a horizontal fixing seat and a detection die body;
the front end of the bed board mounting seat is connected with a horizontal plug-in unit, and the horizontal plug-in unit is used for being inserted into the bed board for fixing; the horizontal fixing seat is vertically fixed at the rear side of the bed board mounting seat, and a pose adjusting mechanism is arranged between the detection die body and the horizontal fixing seat; the pose adjusting mechanism comprises one or more of a horizontal adjusting mechanism, a left-right swinging mechanism and a pitching swinging mechanism, and the horizontal adjusting mechanism, the left-right swinging mechanism and the pitching swinging mechanism are respectively used for realizing the adjustment of horizontal displacement, left-right swinging and pitching swinging of the detection die body relative to the horizontal fixing seat.
In the invention, the horizontal adjusting mechanism, the left-right swinging mechanism and the pitching swinging mechanism are installed in a linkage mode, the installation sequence is random, and the detection die body is installed on the outermost part of the horizontal adjusting mechanism, the left-right swinging mechanism and the pitching swinging mechanism.
Further, in order to guarantee the stability of support, the bed board mount pad is the design of L type, and has arranged the triangle fixed baseplate who is used for strengthening the support on the bed board mount pad.
Furthermore, the horizontal plug-in components and the bed board installation seat are integrally formed or welded together through bent angles, and reinforcing ribs are arranged between bent included angles during welding.
Furthermore, horizontal adjustment mechanism is including being horizontal slide rail, the ball that arrange side by side and being used for driving ball's first motor, and arranges the horizontal slider part with ball looks adaptation on the horizontal slide rail, realizes through the rotation of first motor drive ball that horizontal slider part drives the horizontal slip adjustment of detecting the die body along horizontal slide rail.
Furthermore, the left-right swinging mechanism comprises a second motor and a left-right swinging component, and the output shaft of the second motor drives the left-right swinging component to horizontally rotate so as to realize the left-right swinging adjustment of the detection die body.
Furthermore, the pitching oscillating mechanism comprises a third motor and a pitching oscillating part, and the pitching oscillating adjustment of the detection die body is realized by driving the pitching oscillating part to vertically rotate through an output shaft of the third motor.
Furthermore, in order to improve the regulation and control precision, the first motor, the second motor and the third motor are stepping motors or servo motors, and the horizontal adjusting mechanism, the left-right swinging mechanism and the pitching swinging mechanism further comprise one or more of an encoder, a speed reducer and a position sensor.
A control system based on the automatic adjusting support for CT equipment calibration comprises:
the detection unit is used for acquiring the space pose information of the detection die body in real time and sending the information to the control unit;
the control unit is used for receiving the space pose information of the detected die body and calculating the pose offset information of the detected die body based on the space pose information;
when the pose deviation information shows that the detection die body deviates from the preset pose interval, the control unit sends a corresponding pose adjusting signal to the automatic adjusting support to indicate the pose adjusting mechanism to actuate until the detection die body is adjusted to the preset pose interval.
Furthermore, the detection unit adopts a CT detector and is used for receiving X-ray passing through the detection die body (the X-ray sent by the bulb tube passes through the die body), so that the space pose information of the detection die body is obtained and sent to the control unit.
A control method based on the automatic adjusting support for CT equipment calibration comprises the following steps:
the detection unit acquires the space pose information of the detection die body in real time and sends the information to the control unit;
receiving the space pose information of the detected die body through a control unit, and calculating the pose offset information of the detected die body based on the space pose information;
when the pose deviation information shows that the detection die body deviates from the preset pose interval, the control unit sends a corresponding pose adjusting signal to the automatic adjusting support to indicate the pose adjusting mechanism to actuate until the detection die body is adjusted to the preset pose interval.
Has the advantages that: compared with the prior art, the automatic adjusting bracket for CT equipment calibration, the control system and the control method thereof provided by the invention have the following advantages:
1. the automatic adjustment of the position and the angle of the CT detection die body in each direction can be realized, and the calibration efficiency and the calibration precision of the CT equipment are greatly improved;
2. the automatic CT equipment calibration system is high in automation degree, simple and efficient to operate, high in applicability to various CT equipment models, capable of greatly reducing the labor and material cost of CT equipment calibration and convenient to popularize and use.
Drawings
FIG. 1 is a schematic overall structure diagram of an embodiment of the present invention;
FIG. 2 is a front view of an embodiment of the present invention;
FIG. 3 is a top view of an embodiment of the present invention;
FIG. 4 is a schematic view of the connection of a second motor to a horizontal slider member in an embodiment of the present invention;
FIG. 5 is a schematic diagram illustrating an operation process of the horizontal adjustment mechanism according to an embodiment of the present invention;
FIG. 6 is a schematic diagram illustrating an operation process of the horizontal swing mechanism according to an embodiment of the present invention;
FIG. 7 is a schematic diagram illustrating an operation process of the pitching oscillating mechanism according to the embodiment of the present invention;
FIG. 8 is a block diagram of a control system for automatically adjusting the support in an embodiment of the present invention;
FIG. 9 is a diagram illustrating the operation of the automatic adjusting stand according to the embodiment of the present invention;
the figure includes: 100-an automatic adjusting support, 101-a triangular fixed base, 102-a horizontal fixed base, 103-a horizontal sliding block component, 104-a left-right swinging component, 105-a pitching swinging component, 106-a first motor, 107-a second motor, 108-a third motor, 1011-a horizontal plug-in, 1012-a bed board mounting base and 200-a detection die body.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and examples.
As shown in fig. 1 to 4, an automatic adjusting bracket for CT apparatus calibration includes a bed plate mounting seat 1012, a horizontal fixing seat 102, and a detection mold body 200;
the front end of the bed board mounting seat 1012 is connected with a horizontal plug-in unit 1011, and the horizontal plug-in unit 1011 is used for being inserted into a bed board for fixing; the horizontal fixing seat 102 is vertically fixed at the rear side of the bed board mounting seat 1012, and a pose adjusting mechanism is arranged between the detection mold body 200 and the horizontal fixing seat 102; the pose adjusting mechanism comprises a horizontal adjusting mechanism, a left-right swinging mechanism and a pitching swinging mechanism, and the horizontal adjusting mechanism, the left-right swinging mechanism and the pitching swinging mechanism are respectively used for realizing the horizontal displacement, the left-right swinging and the pitching swinging adjustment of the detection die body 200 relative to the horizontal fixing seat 102.
The horizontal adjusting mechanism comprises horizontal sliding rails, a ball screw and a first motor 106, wherein the horizontal sliding rails, the ball screw and the first motor 106 are arranged in parallel, and are used for driving the ball screw, and the horizontal sliding rails, the ball screw and the first motor 106 are all arranged on the horizontal fixing seat 102; the horizontal sliding rail is provided with a horizontal sliding block part 103 matched with the ball screw, and the rotation of the ball screw is driven by a first motor 106 to realize the horizontal sliding adjustment of the horizontal sliding block part 103 driving the detection die body 200 along the horizontal sliding rail.
The left-right swinging mechanism comprises a second motor 107 and a left-right swinging component 104 which are arranged on the horizontal sliding block component 103, and the left-right swinging adjustment of the detection die body 200 is realized by driving the horizontal rotation of the left-right swinging component 104 through an output shaft of the second motor 107.
The pitching oscillating mechanism comprises a third motor 108 and a pitching oscillating part 105 which are arranged on the left-right oscillating part 104, and the pitching oscillating adjustment of the detection mold body 200 is realized by driving the pitching oscillating part 105 to vertically rotate through an output shaft of the third motor 108.
As shown in fig. 5, the horizontal slider member can horizontally slide along the X-axis under the driving of the first motor, so that the detection mold body moves in a direction horizontally perpendicular to the movement direction of the bed board (in the drawing, the Z direction is a direction in which the bed board moves forward and backward, the Y direction is a vertical lifting direction of the hospital bed, and the X direction is an X direction of the CT stadium).
As shown in fig. 6, the horizontal swinging member can swing left and right within a plane formed by the X axis and the Z axis around the motor shaft by the driving of the second motor, so that the detection mold body swings left and right within a plane parallel to the top board.
As shown in fig. 7, the pitching oscillating member can be driven by the third motor to pitch and oscillate in a plane formed by the Y axis and the Z axis around the motor shaft, so that the detection mold body can pitch and oscillate in a direction perpendicular to the bed plate.
In this embodiment, the bed board mounting seat 1012 is designed in an L shape, and a triangular fixing base 101 for reinforcing support is arranged on the bed board mounting seat 1012.
The horizontal plug-in unit 1011 and the bed board mounting seat 1012 are integrally formed or welded together through a bend angle, and reinforcing ribs are arranged between bent included angles during welding.
The first motor 106, the second motor 107 and the third motor 108 are stepping motors or servo motors, and the horizontal adjusting mechanism, the left-right swinging mechanism and the pitching swinging mechanism further comprise one or more of an encoder, a speed reducer and a position sensor.
The encoder is connected to the first motor, the second motor and the third motor and used for controlling the motors; the speed reducer is connected to the first motor, the second motor and the third motor and is used for reducing the rotating speed of the motors and improving the torque; the position sensor is used for resetting the horizontal adjusting mechanism, the left-right swinging mechanism and the pitching swinging mechanism.
Fig. 8 shows a control system based on the automatic adjusting support for CT apparatus calibration, which includes:
the detection unit is used for acquiring the spatial pose information of the detection die body 200 in real time and sending the information to the control unit;
the control unit is used for receiving the space pose information of the detection die body 200 and calculating the pose offset information of the detection die body 200 based on the space pose information (a power supply in the figure is used for realizing power supply of the control unit, and the control unit can supply power to the motor, or can separately supply power to the control unit and the motor, and can be a power supply on a sickbed or an external power supply);
when the pose deviation information shows that the detection die body 200 deviates from the preset pose interval, the control unit sends a corresponding pose adjustment signal to the automatic adjustment bracket 100 to instruct the pose adjustment mechanism to operate until the detection die body 200 is adjusted to the preset pose interval.
The detection unit adopts a CT detector and is used for receiving X-ray passing through the detection die body 200 (the X-ray sent by the bulb tube passes through the die body), so that the space pose information of the detection die body 200 is obtained and sent to the control unit.
Fig. 9 shows a control method for automatically adjusting the support for CT apparatus calibration, which includes:
the detection unit acquires the space pose information of the detection die body 200 in real time and sends the information to the control unit;
receiving the space pose information of the detection die body 200 through a control unit, and calculating the pose offset information of the detection die body 200 based on the space pose information;
when the pose deviation information shows that the detection die body 200 deviates from the preset pose interval, the control unit sends a corresponding pose adjustment signal to the automatic adjustment bracket 100 to instruct the pose adjustment mechanism to operate until the detection die body 200 is adjusted to the preset pose interval.
The above description is only of the preferred embodiments of the present invention, and it should be noted that: it will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the principles of the invention and these are intended to be within the scope of the invention.
Claims (10)
1. An automatic adjusting bracket for CT equipment calibration is characterized by comprising a bed plate mounting seat (1012), a horizontal fixing seat (102) and a detection die body (200);
the front end of the bed board mounting seat (1012) is connected with a horizontal plug-in (1011), and the horizontal plug-in (1011) is used for being inserted into a bed board for fixing; the horizontal fixing seat (102) is vertically fixed at the rear side of the bed board mounting seat (1012), and a pose adjusting mechanism is arranged between the detection die body (200) and the horizontal fixing seat (102); the pose adjusting mechanism comprises one or more of a horizontal adjusting mechanism, a left-right swinging mechanism and a pitching swinging mechanism, and the horizontal adjusting mechanism, the left-right swinging mechanism and the pitching swinging mechanism are respectively used for realizing the adjustment of horizontal displacement, left-right swinging and pitching swinging of the detection die body (200) relative to the horizontal fixing seat (102).
2. An automatic adjusting stand for CT equipment calibration according to claim 1 characterized in that the bed plate mount (1012) is of L-shaped design and a triangular fixing base (101) for enhanced support is arranged on the bed plate mount (1012).
3. The automatic adjusting bracket for CT equipment calibration as claimed in claim 2, wherein the horizontal insert (1011) and the bed board mounting seat (1012) are integrally formed or welded together through an angle, and reinforcing ribs are arranged between the bent included angles during welding.
4. The automatic adjusting bracket for CT equipment calibration according to claim 1, wherein the horizontal adjusting mechanism comprises a horizontal slide rail, a ball screw and a first motor (106) for driving the ball screw, the horizontal slide rail is arranged with a horizontal slider component (103) matched with the ball screw, and the rotation of the ball screw driven by the first motor (106) realizes the horizontal sliding adjustment of the horizontal slider component (103) driving the detection die body (200) along the horizontal slide rail.
5. The automatic adjusting bracket for CT equipment calibration according to claim 4, wherein the left-right swinging mechanism comprises a second motor (107) and a left-right swinging component (104), and the left-right swinging adjustment of the detection mold body (200) is realized by driving the horizontal rotation of the left-right swinging component (104) through the output shaft of the second motor (107).
6. The automatic adjusting bracket for CT equipment calibration according to claim 5, wherein the pitching mechanism comprises a third motor (108) and a pitching component (105), and the pitching adjustment of the detection mold body (200) is realized by the vertical rotation of the pitching component (105) driven by an output shaft of the third motor (108).
7. The automatic adjusting stand for calibration of CT apparatus of claim 6, wherein the first motor (106), the second motor (107), the third motor (108) are step motors or servo motors, and the horizontal adjusting mechanism, the horizontal swinging mechanism, the vertical swinging mechanism further comprise one or more of an encoder, a speed reducer, and a position sensor.
8. A control system for an automatically adjusting support for CT device calibration, as set forth in claims 1-7, comprising:
the detection unit is used for acquiring the space pose information of the detection die body (200) in real time and sending the information to the control unit;
the control unit is used for receiving the space pose information of the detection die body (200) and calculating the pose offset information of the detection die body (200) based on the space pose information;
when the pose deviation information shows that the detection die body (200) deviates from the preset pose interval, the control unit sends a corresponding pose adjusting signal to the automatic adjusting bracket (100) to indicate the pose adjusting mechanism to act until the detection die body (200) is adjusted to the preset pose interval.
9. The control system of the automatic adjusting bracket for the calibration of the CT device as recited in claim 8, wherein the detection unit adopts a CT detector for receiving X-ray passing through the detection phantom (200) so as to obtain the spatial pose information of the detection phantom (200) and send the information to the control unit.
10. A control method for an automatically adjusting support for CT device calibration based on claims 1-7, comprising:
the method comprises the steps that space pose information of a detection die body (200) is obtained in real time through a detection unit and is sent to a control unit;
receiving the space pose information of the detection die body (200) through a control unit, and calculating the pose offset information of the detection die body (200) based on the space pose information;
when the pose deviation information shows that the detection die body (200) deviates from the preset pose interval, the control unit sends a corresponding pose adjusting signal to the automatic adjusting bracket (100) to indicate the pose adjusting mechanism to act until the detection die body (200) is adjusted to the preset pose interval.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911152517.1A CN110749611A (en) | 2019-11-21 | 2019-11-21 | Automatic adjusting support for CT equipment calibration and control system and method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911152517.1A CN110749611A (en) | 2019-11-21 | 2019-11-21 | Automatic adjusting support for CT equipment calibration and control system and method thereof |
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| CN110749611A true CN110749611A (en) | 2020-02-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911152517.1A Pending CN110749611A (en) | 2019-11-21 | 2019-11-21 | Automatic adjusting support for CT equipment calibration and control system and method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113281360A (en) * | 2021-06-30 | 2021-08-20 | 中国电子科技集团公司第三十八研究所 | Sample fixing device of cone beam CT imaging equipment |
-
2019
- 2019-11-21 CN CN201911152517.1A patent/CN110749611A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113281360A (en) * | 2021-06-30 | 2021-08-20 | 中国电子科技集团公司第三十八研究所 | Sample fixing device of cone beam CT imaging equipment |
| CN113281360B (en) * | 2021-06-30 | 2023-02-28 | 中国电子科技集团公司第三十八研究所 | Sample fixing device of cone beam CT imaging equipment |
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