KR101572624B1 - X-ray imaging apparatus and the control method thereof - Google Patents

Abstract

The present invention relates to an x-ray imaging apparatus, wherein a front display returns to an original horizontal state to improve visibility when a photographing unit rotates, and to a controlling method thereof. According to one embodiment of the present invention, the x-ray imaging apparatus includes: a support unit; a photographing unit which is coupled to the front of the support unit to be rotated, and radiates x-rays; an operating unit which is provided on the front of the photographing unit to operate the photographing unit to be rotated; and a rotary panel which is coupled to the front of the operating unit. When the photographing unit rotates, the rotary panel rotates in the reverse direction of the photographing unit.

Description

The present invention relates to an X-ray imaging apparatus and a control method thereof,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an X-ray imaging apparatus and a control method thereof, and more particularly, to an X-ray imaging apparatus and a control method thereof, in which the front display is returned to its original horizontal state to improve visibility.

Today, X-ray imaging devices for taking a picture of a body part or an object of a patient by using the transmission property of X-ray are widely used.

Particularly, X-ray photographing apparatus widely known as a medical imaging apparatus is a device for obtaining an image by using the characteristic of attenuation according to the property and distance of the object while the X-ray passes through the object. Of course, it is being utilized in the field of non-destructive inspection to reveal internal defects of an object.

Generally, x-ray photography refers to radiography in which the inside of a subject is projected and displayed with high penetration power of the x-ray.

X-rays are transmitted through an object, and are accompanied by attenuation due to material, density, and thickness of the object such as photoelectric effect and compton scattering. Therefore, the X-ray photographing displays the internal structure of the object to be photographed on a plane based on the accumulated X-ray attenuation amount during the process of passing through the object to be photographed, and a separate X-ray photographing apparatus is used for this purpose.

The X-ray photographing apparatus is composed of a generator for generating an X-ray, a detector disposed opposite to the generator with the object to be photographed disposed therebetween, and a detector for detecting accumulated X-ray attenuation during the process of passing through the object to be photographed.

Such an X-ray imaging apparatus can be classified into a ceiling support type, a stand type, and a mobile type according to its installation type.

For example, as shown in Fig. 1, the ceiling support type X-ray imaging apparatus includes a photographing table 1 on which a table 10 is installed, a photographing unit 5 for irradiating x-rays, A supporting portion 6 for moving or elevating the photographing portion 5 along the transverse direction rail 8 and the longitudinal directional rail 7 and a supporting portion 6 provided at the front of the photographing portion 5, (Not shown).

Reference numeral 2 denotes a spot apparatus for obtaining an image through an X-ray tube inside the photographing table 1. Reference numeral 3 and reference numeral 4 'denote a bucky in which a detector and a detector are installed, respectively.

In order to increase the precision of the X-ray imaging, the X-ray must be accurately irradiated on a specific portion of the object to be imaged requiring X-ray imaging. To do this, the user presses the manipulating portion 12 in one direction The photographing unit 5 can be moved or rotated.

At this time, the photographing unit 5 and the operation unit 11 are integrally coupled to a rotary shaft (not shown) coupled to one side of the support unit 6 so as to be rotatable. Therefore, when the user rotates the operating portion 12 about the rotating shaft while holding the handle 11, the photographing portion 5 is also rotated along with the operating portion 12. [

The display 13 is provided on the front of the operation unit 12 and displays various information for X-ray imaging. When the display 13 rotates together with the operation unit 12, There is a problem that it becomes difficult to grasp.

For example, the display 13 formed in the original transverse direction is erected in the vertical direction when the photographing unit 12 is rotated by 90 degrees, so that information such as letters and numbers displayed on the display 13 is also vertically oriented, It will fall.

KR 10-1994-0017965 A (July 27, 1994 open)

An object of the present invention is to provide an X-ray photographing apparatus and a control method thereof that do not deteriorate the visibility of a display even when the photographing unit is rotated.

Another object of the present invention is to provide an X-ray imaging apparatus and a control method thereof, in which a display provided on a rotary panel is returned to its original direction by reversely rotating the rotary panel according to the rotation angle of the photographing unit.

Another object of the present invention is to provide an X-ray photographing apparatus and a control method thereof, in which a plurality of gripping portions are formed on a handle bar so as to facilitate the operation of the operation portion.

It is another object of the present invention to provide a method of detecting a rotation angle of a photographing unit, a method of reversing a rotation panel according to a sensed rotation angle, and a detailed structure thereof.

The above-described object of the present invention can be achieved by a support member, A photographing unit rotatably coupled to the front of the support unit and irradiating X-rays; An operation unit provided in front of the photographing unit to rotate the photographing unit; And a rotary panel rotatably coupled to a front surface of the operation unit, wherein the rotary panel rotates in a direction opposite to a rotation direction of the photographing unit during rotation of the photographing unit. have.

According to a preferred aspect of the present invention, an acceleration sensor for sensing a rotation angle of the photographing unit is provided at one side of the operation unit, and a drive motor for rotating the rotation panel in the reverse direction may be provided at one side of the rotation panel.

According to another preferred aspect of the present invention, the controller may further include a controller for controlling the operation of the driving motor according to the rotation angle sensed by the acceleration sensor.

According to another preferred aspect of the present invention, the control unit reverses the rotation panel by a rotation angle sensed by the acceleration sensor after completion of the rotation of the photographing unit, and changes the orientation of the display provided on the rotation panel to the home position .

According to another preferred aspect of the present invention, a limit switch for recognizing the rotating direction of the rotary panel may be provided on one side of the operation portion.

According to another preferred aspect of the present invention, the manipulation unit includes a body having a rotary panel rotatably coupled to a front surface thereof, a handle bar formed on an outer side of the body, And may include a rotating mechanism that rotates.

According to another preferred feature of the present invention, the rotating mechanism includes a driving motor, a driving unit rotated by the driving motor, and a driving unit interposed between the driving unit and the rotating panel, And a driven unit for transmitting the rotational force of the driving unit to the rotary panel.

According to another preferred aspect of the present invention, the driving unit comprises a driving gear coupled to a rotating shaft of the driving motor, the driven unit is a follower synchronizing gear that meshes with the driving gear, And can be coupled to the center of rotation of the driven gear.

According to another preferred aspect of the present invention, the driving unit comprises a driving pulley coupled to a rotating shaft of the driving motor, and the driven unit is composed of a driven pulley connected to the driving pulley by a belt or a chain, Can be engaged with the center of rotation of the driven pulley.

According to another aspect of the present invention, there is provided an X-ray imaging apparatus including a support portion, an X-ray imaging portion that is rotatably coupled to a front portion of the support portion and includes a photographing portion that irradiates an X-ray and an operation portion that is provided in front of the photographing portion, A method of controlling an apparatus, the method comprising: (a) sensing a rotation angle of the photographing unit; And (b) rotating the rotary panel provided on the front surface of the operation unit according to the rotation angle sensed in the step (a).

According to a preferred aspect of the present invention, in the step (a), the control unit may calculate the rotation angle of the photographing unit based on the measurement value of the acceleration sensor provided at one side of the operation unit.

According to another preferred aspect of the present invention, the step (b) includes the steps of: (b-1) determining whether the photographing unit is finished rotating; And (b-2) if it is determined in the step (b-1) that the rotation operation of the photographing unit is completed, the control unit controls the operation of the driving motor to rotate the rotation panel by the rotation angle sensed in the step (a) And rotating it in a reverse direction.

According to another preferred aspect of the present invention, the step (b) includes the steps of: (b-1) detecting a rotation angle of the rotary panel with respect to a reference angle; And (b-2) continuing the reverse rotation operation of the rotary panel until the rotation angle detected in the step (b-1) reaches the reference angle.

According to the X-ray photographing apparatus and the control method thereof according to the present invention, the display is returned to the horizontal state by the reverse rotation of the rotary panel even when the operation unit and the photographing unit rotate, thereby improving the visibility.

Further, according to the X-ray imaging apparatus of the present invention, since a plurality of grip portions are formed on the handlebar, the operation is easy.

In addition, according to the control method of the X-ray photographing apparatus according to the present invention, since the rotary panel is rotated counterclockwise by the rotation angle of the operation unit and the photographing unit, the display can be accurately returned to the initial state.

In addition, according to the control method of the X-ray imaging apparatus according to the present invention, since the rotary panel is rotated in a reverse direction until the rotary panel returns to the initial state, the display is accurately returned to the initial state.

1 is a schematic view of a conventional ceiling-supported X-ray imaging apparatus;
2 is a side view of an X-ray imaging apparatus according to an embodiment of the present invention;
3 is a perspective view of an operating portion according to an embodiment of the present invention;
Figs. 4 and 5 are exploded perspective views of Fig. 3; Fig.
6 is a cross-sectional view taken along the line AA 'of FIG.
7 is a configuration diagram of a rotation mechanism according to an embodiment of the present invention;
8 is a use state diagram of an X-ray imaging apparatus according to an embodiment of the present invention.
9 is a configuration diagram of a rotation mechanism according to another embodiment of the present invention.
10 is a configuration diagram of a rotation mechanism according to another embodiment of the present invention.
11 is a configuration diagram of a rotation mechanism according to another embodiment of the present invention.
12 is a flowchart of a control method of an X-ray imaging apparatus according to an embodiment of the present invention;
13 is a flowchart of a control method of an X-ray imaging apparatus according to another embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. It is to be understood, however, that the embodiments described below are only for explanation of the embodiments of the present invention so that those skilled in the art can easily carry out the invention, It does not mean anything. In describing various embodiments of the present invention, the same reference numerals are used for components having the same technical characteristics.

Example

2 is a side view of an X-ray imaging apparatus according to an embodiment of the present invention.

Although the embodiment shown in FIG. 2 shows an example of a ceiling-supported X-ray photographing apparatus, the present invention is not limited thereto and may be applied to a stand-type or mobile X-ray photographing apparatus It is also possible to apply it in advance.

2, the X-ray imaging apparatus 100 according to an embodiment of the present invention includes a moving unit 200 installed on a ceiling of an indoor space such as an X-ray photographing room, And a photographing unit 400 coupled to the lower end of the supporting unit 300 and irradiating X-rays.

At this time, an operation unit 500 having a plurality of operation buttons 511 for rotating or moving the photographing unit 400 or setting photographing conditions is provided in front of the photographing unit 400. The operation unit 500 is coupled to the coupling bar 411 having a rectangular cross section protruding forward from the photographing unit 400 and is coupled to the handle bar 530 along the periphery of the operation unit 500 so that the user can easily grasp the coupling bar 411. [ Is formed.

The upper end of the moving part 200 is provided with a rail portion (not shown) so as to be coupled to a ceiling guide rail (not shown) installed in the forward and backward directions and the left and right direction, and is movable in the forward, backward and leftward directions along the guide rail.

The supporting part 300 extends downward from the lower end of the moving part 200 to support the photographing part 400. The supporting part 300 can be folded in multiple stages so that the height of the photographing part 400 can be adjusted.

The photographing unit 400 includes a housing 410 having an X-ray tube and a collimator 420 coupled to a lower end of the housing 410. The photographing unit 400 includes a bracket 430, do.

One end of the bracket 430 is rotatably coupled to the lower end of the support part 300 and the other end of the bracket 430 is bent upward to extend forward of the support part 300. The bracket 430 is connected to the rear end of the housing 410 of the photographing part 400 An elongated rotating shaft 440 is rotatably coupled to the other side of the bracket 430 by a coupling member 450.

The user can press the handle bar 530 while holding the handle bar 530 to rotate or move the operation unit 500 so that the photographing unit 400 can be accurately positioned at a specific portion of the object requiring X-ray photographing. At this time, the photographing unit 400 rotates or moves together with the operation unit 500.

The lifting and lowering of the photographing unit 400 is performed by the expansion and contraction of the supporting unit 300. When the user lifts the operation unit 500 while holding the handle bar 530, the support unit 300 coupled with the photographing unit 400 is folded or unfolded by the bracket 430 in the multi- Is moved in the height direction.

Further, the photographing unit 400 can be moved in the forward, backward, leftward, and rightward directions. At this time, the photographing unit 400 moves together with the moving unit 200 moving along the guide rail installed on the ceiling.

The photographing unit 400 can rotate in the horizontal direction with respect to the support unit 300 about the coupling portion between the support unit 300 and the bracket 430. [

In addition, the photographing unit 400 can rotate about the rotation axis 440 in the vertical direction with respect to the support unit 300. At this time, the user rotates the operating part 500 about the supporting part 300 while holding the handle bar 530, and the photographing part 400 coupled with the operating part 500 by the coupling bar 411, (Not shown).

3 is a perspective view of an operating portion according to an embodiment of the present invention.

3, the operation unit 500 includes a body 510 having a rotary panel 520 rotatably coupled to a front surface thereof, a handle bar (not shown) spaced apart from the body 510 around the body 510, 530).

The front surface of the rotary panel 520 is provided with a display 521 for displaying photographing information of the X-ray photographing apparatus 100. The body 510 includes a plurality of operation buttons for moving the photographing unit 400, (511). The rotating panel 520 and the body 510 are preferably circular as a whole.

The handle bar 530 is formed along the periphery of the body 510 by the user when the operation unit 500 is rotated and moved. The upper end of the handle bar 530 is formed integrally with the upper end of the body 510 and the handle bar 530 is separated from the outer side of the body 510 by a plurality of connection ribs 533. A first grip portion 531 is formed at a lower end of the handle bar 530 so as to be spaced apart from a lower end of the body 510. The handle bar 530 is provided on both sides of the handle bar 530, And the first grip portion 531 and the second grip portion 532 are separated from each other by the connecting rib 533. [

At this time, the separation distance between the first grip portion 531 and the body 510 is longer than the separation distance between the second grip portion 532 and the body 510, and unlike the second grip portion 532 having an arc shape It is preferable that the lower end of the first grip portion 531 is linear. This is because the user's finger is opposed to the body 510 at the time of holding the second grip portion 532 while the hand of the user who is thicker than the finger at the time of gripping the first grip portion 531 faces the body 510 So that the gripping space can be sufficiently secured.

The user can rotate or lift or move the photographing unit 400 to a desired position by holding the handle bar 530 and rotating or moving the operation unit 500. [

When the operating part 500 is rotated about the rotating shaft 440 with respect to the supporting part 300, the body 510 shown in FIG. 3 rotates clockwise or counterclockwise with respect to the center point. At this time, the rotary panel 520 coupled to the body 510 also rotates integrally with the body 510. As the display 521, which is horizontally disposed on the front surface of the rotary panel 520, is tilted, The visibility of symbols such as letters and numerals displayed on the display 521 is reduced.

In order to solve this problem, according to an embodiment of the present invention, a rotating mechanism 800 that rotates the rotary panel 520 in the reverse direction and returns the display 521 to the original horizontal state is disposed in the body 510 .

4 and 5 are exploded perspective views of FIG.

The operation unit 500 is formed by a combination of a front cover 600 and a rear cover 700. A rotary panel 520 is rotatably coupled to a front surface of the front cover 600, The above-described rotating mechanism 800 is installed in the space between the covers 700.

The rotary panel 520 is a circular block having a predetermined thickness and includes a display 521 on the front side and a control unit 900 including a PCB 910 (see FIG. 6) . The control unit 900 may also control the operation of the rotation mechanism 800 described later.

An acceleration sensor 920 is installed on one side of the PCB 910. The acceleration sensor 920 senses the rotation angle of the rotary panel 520 that rotates together with the operation unit 500. The controller 900 rotates the rotary panel 520 in the reverse direction based on the rotation angle measured by the acceleration sensor 920. At this time, the display 521 returns to the original horizontal state. That is, when the operation unit 500 and the photographing unit 400 are rotated in the 90-degree direction, the controller 900 rotates the display panel 521 in the original horizontal state Lt; / RTI >

A shaft portion 522 protrudes from the rear center of the rotary panel 520 and a shaft hole 611 is formed at the center of the first body 610 of the front cover 600. A bearing 612 is mounted on the shaft hole 611 so that the shaft portion 522 of the rotary panel 520 inserted into the shaft hole 611 of the front cover 600 is rotatable.

The front cover 600 includes a first body 610 and a first handle bar 620 formed along the periphery of the first body 610. The rear cover 700 includes a second body 710, And a second handle bar 720 formed along the periphery of the second body 710.

The first body 610 and the second body 710 are coupled to each other to form the body 510 of the operation unit 500. When the first handlebar 620 and the second body 710 are coupled together when the front cover 600 and the rear cover 700 are coupled, And the second handle bar 720 are combined with each other to form the handle bar 530 of the operation unit 500. The first connection rib 630 of the front cover 600 and the second connection rib 730 of the rear cover 700 are coupled to form a connection rib 533 of the handle bar 530.

A shaft hole 611 having a bearing 612 is formed at the center of the bottom plate 613 of the first body 610 and a tread 614 protrudes forward from the outer edge of the shaft hole 611. A first space 615 surrounded by a bottom plate 613 and a trough 614 is formed in a circular shape on the front surface of the first body 610 and the rotation panel 520 is formed in the first space 615 And the shaft portion 522 is inserted into the shaft hole 611. A plurality of operation buttons 511 are provided along the circumferential direction on the outer edge of the base 614.

The second body 710 of the rear cover 700 is convexly protruded rearward and a second space 711 recessed rearward is formed on the front surface of the second body 710. The second space portion 711 is used as a space for installing the rotation mechanism 800 described later.

A rectangular coupling hole 712 is formed in the second body 710 so that the coupling bar 411 protruding forward of the housing 410 of the photographing unit 400 is inserted through the coupling hole 712, And is coupled to one side of the operation unit 500, whereby the operation unit 500 and the photographing unit 400 move integrally.

The rotating mechanism 800 is interposed between the front cover 600 and the rear cover 700 and is accommodated in the second space portion 711 of the rear cover 700.

The rotating mechanism 800 includes a driving motor 810, a driving unit rotated by the driving motor 810, and a driven unit for transmitting the rotating force of the driving unit to the rotating panel 520 to rotate the rotating panel 520 . The operation of the driving motor 810 may be performed by the control unit 900 according to the rotation angle of the operation unit 500 measured from the acceleration sensor 920.

In the rotating mechanism 800 according to the embodiment of the present invention, as shown in FIGS. 4 and 5, the driving unit and the follower unit may be spur gears. At this time, the shaft portion 522 of the rotary panel 520 inserted through the shaft hole 611 of the front cover 600 is engaged with the front surface of the driven gear 830. A ring-shaped reinforcing member 840 may be interposed between the shaft portion 522 and the driven gear 830 to prevent a strong coupling and breakage of the shaft portion 522. The shaft portion 522, the reinforcing member 840 and the driven gear 830 And are disposed on the same axis. A drive gear 820 is installed on the lower side of the driven gear 830 to engage with the driven gear 830. The drive motor 810 is installed on a lower side of the body 510 by a motor bracket 811, (820).

FIG. 6 is a cross-sectional view taken along the line A-A 'of FIG. 4, and FIG. 7 is a view illustrating a rotation mechanism according to an embodiment of the present invention, in which the rear cover of the operation portion is removed.

6, an acceleration sensor 920 is provided at one side of the PCB 910 inside the rotary panel 520, and the controller 920 is controlled according to the rotation angle of the control unit 500 measured from the acceleration sensor 920 900 controls the operation of the drive motor 810 to rotate the drive gear 820. 7, the rotation of the rotary panel 520, to which the shaft portion 522 is coupled, is rotated by the rotation of the driven gear 830 engaged with the drive gear 820.

A limit switch 640 for guiding the rotation direction of the rotary panel 520 is provided at one side of the rear side of the front cover 600. The limit switch 640 is provided to prevent twisting of the electric wire when the rotary panel 520 is rotated So that the rotation panel 520 rotates only in the direction opposite to the direction of the rotation.

That is, the rotation of the rotary panel 520 is detected by the controller 900 in the direction opposite to the rotation direction of the operation unit 500. When the rotation angle exceeds 180 degrees, the pair of limit switches 640 The rotation direction is recognized in the order in which the buttons 641 are sequentially pressed.

At this time, the pair of limit switches 640 are provided at the other end of the switch bracket 650, one end of which is coupled to one side of the rear surface of the first body 610 and the other end of which is extended to the rear of the driven gear 830 . A protrusion 831 is provided on one side of the rear surface of the driven gear 830 on the opposite side of the limit switch 640 with respect to the shaft hole 611 on the basis of the initial state to press the button 641 of the limit switch 640 .

8 is a use state diagram of an X-ray imaging apparatus according to an embodiment of the present invention.

As shown in FIG. 8A, the display 521 is arranged in the horizontal direction in the initial state before the operation unit 500 is rotated.

8B, when the operation unit 500 is rotated 90 degrees clockwise, the rotary panel 520 rotates 90 degrees together with the body 510 of the operation unit 500, and the display 521 rotates in the vertical direction Respectively. At this time, the symbols such as numerals and characters displayed on the display 521 are arranged in the vertical direction, thereby deteriorating the visibility.

8C, the body 510 is rotated by 90 degrees while the rotation panel 520 is rotated in the reverse direction to rotate the display 521, In the original direction. That is, the rotary panel 520 rotates 90 ° in the counterclockwise direction opposite to the rotation direction of the operation unit 500, returns to the original position, and the display 521 is disposed in the original horizontal direction.

The control unit 900 controls the operation of the driving motor 810 and rotates the rotary panel 520 in the reverse direction by a rotation angle (for example, 90 °) of the operation unit 500 measured from the acceleration sensor 920 (E.g., -90 DEG). As another example, when the rotation of the operation unit 500 is detected by the acceleration sensor 920, the rotation panel 520 is immediately rotated in the reverse direction until the rotation angle of the rotation panel 520 becomes 0 ° It is also possible. For this purpose, the rotation angle of the rotary panel 520 based on the initial state (for example, the horizontal state) needs to be continuously measured by a separate angle sensor (not shown).

FIG. 9 is a configuration diagram of a rotation mechanism according to another embodiment of the present invention, showing an example in which a driving unit and a follower unit are composed of a worm and a worm wheel, respectively.

In this case, the worm 820a is coupled to the rotation axis of the driving motor 810. When the worm 820a is rotated by the operation of the driving motor 810, the worm wheel 830a, which meshes with the worm 820a, The rotation panel 520, to which the shaft portion 522 is coupled, is rotated on the front surface of the worm wheel 830a. At this time, the reinforcement member 840 can be coupled on the same axis between the shaft portion 522 of the rotary panel 520 and the worm wheel 830a as described above.

Fig. 10 is a configuration diagram of a rotating mechanism according to another embodiment of the present invention, showing an example in which the driving portion and the follower portion are made of bevel gears.

In this case, the first bevel gear 820b is coupled to the rotation shaft of the drive motor 810. When the first bevel gear 820b is rotated by the operation of the drive motor 810, the first bevel gear 820b The second bevel gear 830b which rotates to be engaged rotates the rotary panel 520 having the shaft portion 522 coupled to the front surface of the second bevel gear 830b. At this time, the reinforcing member 840 can be coupled on the same axis between the shaft portion 522 of the rotary panel 520 and the second bevel gear 830b as described above.

FIG. 11 is a view showing the structure of a rotating mechanism according to another embodiment of the present invention, in which the driving part and the driven part are composed of a driving pulley and a driven pulley connected to each other by a connecting member such as a V-belt or a chain.

In this case, the drive pulley 820c is coupled to the rotation shaft of the drive motor 810. When the drive pulley 820c is rotated by the operation of the drive motor 810, the driven pulley 830c connected to the link member 850, Rotates in conjunction with the drive pulley 820c to rotate the rotary panel 520 with the shaft portion 522 coupled to the front surface of the driven pulley 830c. At this time, the reinforcing member 840 can be engaged on the same axis between the shaft portion 522 of the rotary panel 520 and the driven pulley 830c as described above.

12 is a flowchart of a control method of an X-ray imaging apparatus according to an embodiment of the present invention. Hereinafter, a control method of the X-ray imaging apparatus according to an embodiment of the present invention will be described step by step with reference to FIG.

Control unit  Rotation phase S10 ):

In order to take an X-ray of a specific region of the object, it is necessary to position the photographing section 400 at an accurate photographing point. The user can press the operating part 500 in one direction to move the photographing part 400 together with the operating part 500 and if necessary the operating part 500 and the photographing part 400 can be moved relative to the supporting part 300, .

Rotation angle sensing step ( S20 ):

The rotational angle of the operating portion 500 when the shaft is rotated is measured by an acceleration sensor 920 installed on one side of the PCB 910 in the rotary panel 520. The control unit 900 can calculate the rotation angle of the operation unit 500 (or the photographing unit 400) based on the measurement value of the acceleration sensor 920. [

Control unit  A step of determining whether or not the rotation operation is completed S30 ):

The control unit 900 determines whether or not the rotation operation of the operation unit 500 (or the photographing unit 400) has been completed. At this time, when there is no change in the measured value of the acceleration sensor 920 for a predetermined time or when the measured value is 0, the controller 900 can determine that the rotation operation of the operation unit 500 is terminated.

As another example, it is possible to determine whether or not the rotation operation is completed by turning on / off the operation button 511 of the operation unit 500. [

As another example, it is possible to determine whether or not the operation of the operation unit 500 is completed by sensing whether the user holds the handle bar 530. [ At this time, the handle bar 530 of the user is pressed by using a pressure sensor (not shown) provided on the handle bar 530 or a non-contact sensor (not shown) provided in the direction of the handle bar 530 from one side of the body 510, It can be determined that the operation of the operation unit 500 has been completed when it is determined that the user has released the handle bar 530. [

Rotation Panel Reverse Rotation Phase ( S40 ):

The control unit 900 rotates the rotary panel 520 by the operation of the driving motor 810 so that the display 521 is arranged in the original horizontal state. The control unit 900 controls the operation of the driving motor 810 such that the rotation panel 520 is rotated by the rotation angle of the operation unit 500 (or the photographing unit 400) sensed by the acceleration sensor 920 do.

As described above, when the rotary panel 520 is rotated backward by the rotation angle detected by the acceleration sensor 920 and returned to the original position after the rotation of the operation unit 500 is completed, So that the possibility of occurrence of a failure is low.

13 is a flowchart of a control method of an X-ray imaging apparatus according to another embodiment of the present invention. The control method shown in Fig. 13 is different from the control method shown in Fig. 12 in that the rotation angle is sensed by the acceleration sensor 920 when the operation unit 500 (or the photographing unit 400) Step S10 and rotation angle sensing step S20.

However, according to another embodiment of the present invention, it is not necessary to detect the accurate rotation angle of the operation unit 500 (or the photographing unit 400) in the rotation angle sensing step S20, (400)) and the direction of rotation of the robot.

When the rotation of the operation unit 500 (or the photographing unit 400) is sensed, the rotation of the rotation panel 520 starts immediately (S30 '), and the rotation angle of the rotation panel 520 is changed to an initial state (S40 '), the reverse rotation is continued until the direction of the display 521 returns to the initial state. To this end, an angle sensor (not shown) may be provided on one side of the rotary panel 520 to sense the rotation angle of the rotary panel 520 based on the initial state.

According to another embodiment of the present invention described above, the reverse rotation operation of the rotary panel 520 is performed even in a state in which the rotation of the operation unit 500 is continued, so that the return of the rotary panel 520 is completed in a shorter time There are advantages.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments.

100: X-ray photographing apparatus 200:
300: support part 400: photographing part
410: housing 420: collimator
430: Bracket 440:
500: operating part 510: body
520: Rotating panel 521: Display
522: shaft portion 530: handle bar
600: Front cover 611:
640: Limit switch
700: rear cover 712: engaging hole
800: rotation mechanism 810: drive motor
820: driving gear 830: driven gear
831:
900: control unit 910: PCB
920: Accelerometer

Claims (13)

A support;
A photographing unit rotatably coupled to the front of the support unit and irradiating X-rays;
An operation unit provided in front of the photographing unit to rotate the photographing unit; And
And a rotation panel rotatably coupled to a front surface of the operation unit,
Wherein the rotary panel rotates in a direction opposite to a rotation direction of the photographing unit when the photographing unit rotates. The method according to claim 1,
Wherein an acceleration sensor for sensing a rotation angle of the photographing unit is provided at one side of the operation unit, and a drive motor for rotating the rotation panel in the reverse direction is provided at one side of the rotation panel. The method of claim 2,
Further comprising a control unit for controlling operation of the driving motor according to a rotation angle sensed by the acceleration sensor. The method of claim 3,
Wherein the control unit reverses the rotation panel by a rotation angle sensed by the acceleration sensor after the rotation of the photographing unit is completed to restore the orientation of the display provided on the rotation panel. The method of claim 4,
And a limit switch for recognizing a rotation direction of the rotary panel is provided on one side of the inside of the operation unit. The method according to claim 1,
The control unit may include a body on which the rotation panel is rotatably coupled to a front surface, a handle bar formed on an outer side of the body, and a rotation mechanism provided on one side of the body and rotating the rotation panel. X-ray imaging device. 7. The apparatus according to claim 6,
And a driven part interposed between the driving part and the rotary panel and having one side coupled to one side of the rotary panel and transmitting the rotational force of the driving part to the rotary panel, And the X-ray photographing apparatus. The method of claim 7,
The drive unit is composed of a drive gear coupled to a rotation shaft of the drive motor. The follower unit is composed of a follower synchronized with the drive gear, and the shaft portion of the rotation panel is coupled to the rotation center of the driven gear Ray photographing apparatus. The method of claim 7,
Wherein the driving unit comprises a driving pulley coupled to a rotating shaft of the driving motor, the driven unit is composed of a driven pulley connected to the driving pulley by a belt or a chain, and a shaft portion of the rotating panel is connected to a rotation center of the driven pulley Wherein the X-ray imaging apparatus is combined with the X-ray imaging apparatus. A control method of an X-ray photographing apparatus, comprising: a supporting part; a photographing part rotatably coupled to the front of the supporting part and irradiating an X-ray; and an operating part provided in front of the photographing part to rotate the photographing part,
(a) sensing a rotation angle of the photographing unit; And
(b) reversely rotating the rotary panel provided on the front surface of the operation unit according to the rotation angle sensed in the step (a). The method of claim 10,
Wherein the control unit calculates the rotation angle of the photographing unit based on the measurement value of the acceleration sensor provided at one side of the operation unit. The method of claim 10,
The step (b) includes the steps of: (b-1) determining whether the photographing operation of the photographing unit is completed; And (b-2) if it is determined in the step (b-1) that the rotation operation of the photographing unit is completed, the control unit controls the operation of the driving motor to rotate the rotation panel by the rotation angle sensed in the step (a) And rotating the X-ray imaging apparatus in a reverse direction. The method of claim 10,
The step (b) includes the steps of: (b-1) detecting a rotation angle of the rotary panel with respect to a reference angle; And (b-2) continuing the reverse rotation operation of the rotary panel until the rotation angle detected in the step (b-1) reaches the reference angle.

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