Radiography system with anti-collision mechanism of bearing bed and anti-collision method thereof
阅读说明:本技术 具承载床防撞机制的造影系统及其防撞方法 (Radiography system with anti-collision mechanism of bearing bed and anti-collision method thereof ) 是由 邹腾鉴 许智渊 王以安 周雅凡 李致贤 许竣傑 于 2019-06-04 设计创作,主要内容包括:一种造影系统,包括机台、承载床、设置于机台的相对两侧的X光模块与影像侦测模块、处理单元以及用以提供多个造影模式的人机接口,其中各个造影模式分别对应不同的造影距离。当承载床安装于机台上时,处理单元通过机台识别承载床的承载床种类,并且根据承载床种类决定X光模块及影像侦测模块相对于承载床的安全距离。并且,处理单元在多个造影模式中的一个特定造影模式的造影距离小于所述安全距离时,在人机接口上禁能所述特定造影模式。(An imaging system comprises a machine table, a bearing bed, an X-ray module and an image detection module which are arranged on two opposite sides of the machine table, a processing unit and a human-computer interface used for providing a plurality of imaging modes, wherein each imaging mode corresponds to different imaging distances. When the bearing bed is installed on the machine table, the processing unit identifies the type of the bearing bed through the machine table, and determines the safe distance between the X-ray module and the image detection module relative to the bearing bed according to the type of the bearing bed. And when the contrast distance of a specific contrast mode in the plurality of contrast modes is smaller than the safety distance, the processing unit disables the specific contrast mode on the human-computer interface.)
1. An imaging system with a load bed collision avoidance mechanism, comprising:
a machine table;
the bearing bed is detachably arranged on the machine table;
the X-ray module is arranged on one side of the machine table and is separated from the bearing bed by a first working distance;
the image detection module is arranged on the other side of the machine platform, which is opposite to the X-ray module, and is separated from the bearing bed by a second working distance;
the processing unit is electrically connected with the machine table, the X-ray module and the image detection module and identifies a bearing bed type of the bearing bed through the machine table; and
a human-computer interface for providing a plurality of contrast modes, wherein the contrast modes respectively correspond to different contrast distances, and the contrast distance is a first contrast distance of the X-ray module relative to the carrying bed or a second contrast distance of the carrying bed relative to the image detection module;
the processing unit determines a safety distance between the X-ray module and the image detection module relative to the support bed according to the type of the support bed, and disables a specific contrast mode when the first contrast distance or the second contrast distance of the specific contrast mode is smaller than the safety distance.
2. The radiography system with a crash-proof mechanism of a carrier bed as claimed in claim 1, wherein when the processing unit controls the X-ray module and the image detection module to perform an radiography process, the first working distance and the second working distance are respectively adjusted to the safe distance, which is the distance at which the X-ray module and the image detection module are closest to but do not collide with the carrier bed.
3. The radiography system with a crash-proof mechanism of a carrier bed as claimed in claim 1, wherein the machine has a docking interface, the carrier bed has a connection interface, the machine is electrically connected to the carrier bed through the docking interface and the connection interface, the processing unit receives an identification signal of the carrier bed through the docking interface and the connection interface, and identifies the type of the carrier bed according to the content of the identification signal.
4. The imaging system with a carrier bed collision avoidance mechanism of claim 1, wherein the human machine interface accepts an external operation to select one of the one or more imaging modes that is not disabled, the processing unit adjusts the first working distance of the X-ray module relative to the carrier bed according to the first imaging distance of the selected imaging mode, adjusts the second working distance of the image detection module relative to the carrier bed according to the second imaging distance of the selected imaging mode, and controls the X-ray and the image detection module to perform an imaging procedure based on the adjusted first working distance and the adjusted second working distance, wherein the adjusted first working distance is equal to the first imaging distance, and the adjusted second working distance is equal to the second imaging distance.
5. The radiography system with a crash-proof mechanism of claim 1, wherein the types of the carrying bed include a large carrying bed, a medium carrying bed and a small carrying bed, the safety distance of the large carrying bed is greater than the safety distance of the medium carrying bed, the safety distance of the medium carrying bed is greater than the safety distance of the small carrying bed, and the processing unit enables all the radiography modes when the carrying bed is identified as the small carrying bed.
6. The contrast system with a bed collision avoidance mechanism of claim 1, wherein the processing unit corresponds to a plurality of resolution magnifications according to the contrast mode, the resolution magnifications being respectively equal to a relationship between the first contrast distance and the second contrast distance of the contrast mode.
7. An anti-collision method of an imaging system is applied to the imaging system, the imaging system comprises a machine table, a bearing bed detachably arranged on the machine table, an X-ray module arranged on one side of the machine table and separated from the bearing bed by a first working distance, an image detection module arranged on the other side of the machine table opposite to the X-ray module and separated from the bearing bed by a second working distance, a processing unit and a man-machine interface, the anti-collision method comprises the following steps:
a) when the bearing bed is arranged on the machine table, the processing unit identifies a bearing bed type of the bearing bed through the machine table;
b) the processing unit determines a safe distance between the X-ray module and the image detection module relative to the carrying bed according to the type of the carrying bed;
c) the processing unit accesses a plurality of contrast modes provided by the human-computer interface, wherein the contrast modes respectively correspond to different contrast distances, and the contrast distance is a first contrast distance of the bearing bed relative to the X-ray module or a second contrast distance of the bearing bed relative to the image detection module;
d) the processing unit judges whether a specific contrast mode with the first contrast distance or the second contrast distance smaller than the safe distance exists in the plurality of contrast modes;
e) disabling, by the processing unit, the particular contrast mode when the particular contrast mode is present among the plurality of contrast modes; and
f) and controlling the man-machine interface to display one or more of the contrast modes which are not disabled by the processing unit.
8. The collision avoidance method of claim 7, wherein when the processing unit controls the X-ray module and the image detection module to perform a radiography process, the first working distance and the second working distance are respectively adjusted to the safe distance, which is the distance at which the X-ray module and the image detection module are closest to but do not collide with the bed.
9. The anti-collision method of the radiography system according to claim 7, wherein the machine has a docking interface, the carrying bed has a connection interface, and the machine is electrically connected to the carrying bed through the docking interface and the connection interface; in the step a), the processing unit receives an identification signal of the carrying bed through the docking interface and the connection interface, and identifies the type of the carrying bed according to the content of the identification signal.
10. The method of claim 7, further comprising the steps of:
g) the man-machine interface receives an external operation to select one of the one or more contrast modes which are not disabled;
h) the processing unit obtains the first contrast distance and the second contrast distance of the selected contrast mode;
i) the processing unit adjusts the first working distance of the X-ray module relative to the carrying bed according to the first contrast distance, and adjusts the second working distance of the image detection module relative to the carrying bed according to the second contrast distance, so that the adjusted first working distance is equal to the first contrast distance, and the adjusted second working distance is equal to the second contrast distance; and
j) the processing unit controls the X-ray module and the image detection module to execute an angiography program based on the adjusted first working distance and the adjusted second working distance.
11. The collision avoidance method for radiography system according to claim 7, wherein the carrying bed types include at least a large carrying bed, a medium carrying bed and a small carrying bed, the safety distance of the large carrying bed is greater than the safety distance of the medium carrying bed, the safety distance of the medium carrying bed is greater than the safety distance of the small carrying bed, and the processing unit enables all the radiography modes when the carrying bed is identified as the small carrying bed.
12. The collision avoidance method for an imaging system according to claim 7, wherein the imaging modes correspond to different resolutions and magnifications respectively equal to a relationship between the first and second imaging distances of the imaging modes.
Technical Field
The invention relates to an imaging system, in particular to an imaging system capable of preventing a carrying bed from being collided and an anti-collision method thereof.
Background
The radiography system mainly comprises an X-ray module for emitting X-rays, an image detection module for detecting the X-rays to generate images, and a carrying bed which is arranged on an irradiation path of the X-rays and is used for carrying an irradiated object.
Generally, the distance between the X-ray module and the bed is equal to the distance between the image detection module and the bed. When the radiography program is executed, the X-ray module and the image detection module take the carrying bed as a circle center, and rotate clockwise or anticlockwise relative to the carrying bed, so that an X-ray image of an irradiated object is generated.
The user may need images of different resolutions for different objects to be illuminated (e.g., different animals). In a general radiography system, the radiography system can adjust the resolution of the image by adjusting the distance between the X-ray module or the image detection module and the carrying bed, so as to obtain the Field of View (FoV) required by the user.
However, for different sizes of objects to be irradiated, the imaging system may need to install different kinds of carrying beds, and the different kinds of carrying beds may have different volumes (such as width and height).
As can be seen from the above, if the user needs a higher resolution, the distance between the X-ray module or the image detection module and the bed will be smaller. If the experience of the user is insufficient and an inappropriate resolution is selected, the X-ray module or the image detection module may collide with the support bed during the rotation process to cause damage because the support bed has a too large volume and the distance between the X-ray module or the image detection module and the support bed is too small.
Disclosure of Invention
The present invention is directed to an imaging system with a crash-proof mechanism for a carrying bed and a crash-proof method thereof, which can identify the type of the carrying bed currently installed, and automatically determine one or more imaging modes that can be selected by a user according to the type of the carrying bed.
In order to achieve the above object, the radiography system with a collision avoidance mechanism of a carrying bed of the present invention mainly comprises: a machine table; a bearing bed detachably mounted on the machine platform; an X-ray module and an image detection module arranged on two opposite sides of the machine platform; a processing unit; and a human-computer interface for providing a plurality of contrast modes, wherein the contrast modes respectively correspond to different contrast distances.
When the bearing bed is installed on the machine table, the processing unit identifies the type of the bearing bed through the machine table. Then, the processing unit determines a safe distance between the X-ray module and the image detection module relative to the carrying bed according to the type of the carrying bed. And when the contrast distance of a specific contrast mode in the plurality of contrast modes is smaller than the safe distance, the processing unit disables the specific contrast mode on the human-computer interface.
Compared with the related art, the invention has the technical effects that the radiography system can determine different safe distances according to different carrying beds, and can forbid one or more radiography modes with too small radiography distance according to the safe distances. Therefore, a user cannot select the contrast mode with the excessively small contrast distance during operation, and the situation that the X-ray module and the image detection module collide with the carrying bed in the moving process due to the fact that the user selects the inappropriate contrast mode is avoided.
Drawings
Fig. 1 is a first embodiment of a schematic representation of an imaging system of the present invention.
FIG. 2 is a block diagram of a first embodiment of an imaging system of the present invention.
Fig. 3 is a first embodiment of a collision avoidance process of the present invention.
Fig. 4A is a schematic view of a first embodiment of the load-bearing bed of the present invention.
FIG. 4B is a diagram illustrating a human-machine interface according to a first embodiment of the present invention.
Fig. 5A is a schematic view of a second embodiment of the load-bearing bed of the present invention.
FIG. 5B is a diagram illustrating a man-machine interface according to a second embodiment of the present invention.
Fig. 6A is a third embodiment of the carrying bed of the present invention.
FIG. 6B is a diagram illustrating a man-machine interface according to a third embodiment of the present invention.
FIG. 7 is a first embodiment of a visualization flow chart of the present invention.
Fig. 8 is a second embodiment of a schematic representation of the visualization system of the present invention.
1: radiography system
10: processing unit
11: x-ray module
12: image detection module
13: machine table
131: guide connection interface
14: load-bearing bed
141: connection interface
15: storage unit
151: contrast mode
16: human-machine interface
21: first bearing bed
211: connection interface
22: second bearing bed
221: connection interface
23: third bearing bed
231: connection interface
L11: initial first working distance
L12: initial second working distance
L21: adjusted first working distance
L22: second working distance after adjustment
Lw: working distance
L01: first working distance
L02: second working distance
Ls: safe distance
S10-S22: control step
S30-S36: control step
Detailed Description
Now, a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.
Referring to fig. 1, there is shown a first embodiment of a schematic representation of the contrast system of the present invention. The invention discloses an radiography system with a carrying bed collision avoidance mechanism (hereinafter, the radiography system is referred to as the radiography system 1 for short in the specification), wherein the radiography system 1 at least comprises an
In the embodiment shown in fig. 1, the
Specifically, the working distance Lw refers to a distance between the
As shown in fig. 1, the
Before the imaging procedure is performed, a user may set a desired resolution, and the imaging system 1 may adjust the working distance Lw according to the resolution set by the user, so that the
In this embodiment, the contrast system 1 may adjust the first working distance L01 and the second working distance L02 of the working distances Lw to obtain the required resolution.
In the first embodiment, the first working distance L01 and the second working distance L02 may be equal distances. In a second embodiment, the first working distance L01 may be greater than the second working distance L02. In a third embodiment, the first working distance L01 may be less than the second working distance L02.
One of the technical features of the present invention is to limit the adjustment range of the working distance Lw to prevent the
Referring also to FIG. 2, a block diagram of a radiography system according to a first embodiment of the present invention is shown. As shown in fig. 2, the radiography system 1 of the present invention further includes a storage unit 15, a human-
The processing unit 10 of the present invention mainly identifies the type of the
Specifically, the safety distance Ls is a distance extending outward from the center of the
For example, the carrying bed types may include a large carrying bed corresponding to a first safety distance, a medium carrying bed corresponding to a second safety distance, and a small carrying bed corresponding to a third safety distance, wherein the size of the large carrying bed is larger than that of the medium carrying bed, the size of the medium carrying bed is larger than that of the small carrying bed, the first safety distance is larger than the second safety distance, and the second safety distance is larger than the third safety distance.
In the present invention, the safety distance Ls refers to a distance closest to the supporting
In the first embodiment, the processing unit 10 can sense the weight of the supporting
In a second embodiment, the radiography system 1 may further include an image capturing module (not shown) disposed on the table 13, and the processing unit 10 may control the image capturing module to capture an image of the carrying
In the third embodiment, the
In the fourth embodiment, different carrying
In the fifth embodiment,
It should be noted that the above-mentioned embodiments are only examples of the present invention, and should not be construed as limiting the scope of the present invention.
The storage unit 15 stores a plurality of contrast modes 151, and the contrast system 1 provides and displays the plurality of contrast modes 151 through the human-
In the present invention, the processing unit 10 may determine the safety distance Ls according to the type of the carrying
Specifically, the processing unit 10 accesses the plurality of contrast modes 151 in the storage unit 15 after deciding the safety distance Ls, and disables one or more contrast modes 151 having a contrast distance smaller than the safety distance Ls among the plurality of contrast modes 151 (i.e., the first contrast distance is smaller than the safety distance Ls, or the second contrast distance is smaller than the safety distance Ls). If the first contrast distance and the second contrast distance of the plurality of contrast modes 151 are both greater than the safety distance Ls, the processing unit 10 enables all the contrast modes 151. Finally, the processing unit 10 regards one or more contrast modes 151 that are not disabled as appropriate contrast modes 151 (i.e., contrast modes suitable for the currently set carrying bed 14), and displays these appropriate contrast modes 151 on the human-
In one embodiment, the processing unit 10 displays all the contrast modes 151 in the storage unit 15 on the human-
With the above technical solution, the radiography system 1 can disable the contrast mode 151 with a too small contrast distance (including the first contrast distance being too small or the second contrast distance being too small) according to the currently set carrying
Referring to fig. 3, a first embodiment of an anti-collision flowchart according to the present invention is shown. The invention also discloses a collision avoidance method of the radiography system (hereinafter referred to as collision avoidance method), and fig. 3 is used to illustrate in detail the relevant steps of the collision avoidance method, which are mainly performed by the radiography system 1 shown in fig. 1 and fig. 2.
First, when a user has a contrast request, the contrast system 1 of the present invention needs to be started (step S10). When the imaging system 1 is started, the processing unit 10 first determines whether the
After the carrying
After the step S14, the processing unit 10 further determines a safety distance Ls between the
Specifically, the processing unit 10 queries the storage unit 15 according to the type of the currently set carrying
After step S16, the processing unit 10 further accesses the plurality of contrast modes 151 to be provided by the human-
In this embodiment, the plurality of contrast modes 151 are stored in the storage unit 15, and each contrast mode 151 has a different contrast distance. The first contrast distance and the second contrast distance of each contrast mode 151 may be the same or different. When the radiography system 1 controls the
If it is determined in step S18 that all the contrast distances of all the contrast modes 151 in the storage unit 15 are greater than or equal to the safety distance Ls (e.g., the first contrast distance is greater than or equal to the safety distance Ls, and the second contrast distance is also greater than or equal to the safety distance Ls), the processing unit 10 does not perform any processing on the plurality of contrast modes 151 in the storage unit 15.
On the contrary, if it is determined in step S18 that any one of the contrast distances of one or more contrast modes 151 is smaller than the safety distance Ls (e.g., the first contrast distance or the second contrast distance of a specific contrast mode is smaller than the safety distance Ls), the processing unit 10 disables the specific contrast mode (step S20). After step S18 or step S20, the processing unit 10 controls the human-
In this embodiment, the particular contrast mode that was disabled in step S20 is not displayed or is darkened on the
Referring to fig. 4A and fig. 4B, fig. 4A is a schematic view of a carrying bed according to a first embodiment of the invention, and fig. 4B is a schematic view of a human-machine interface according to a first embodiment of the invention.
In the embodiment of fig. 4A, the radiography system 1 employs a first supporting
In the embodiment of fig. 4B, the contrast system 1 may default to at least four contrast modes 151, including a first mode, a second mode, a third mode, and a fourth mode. Wherein the resolution of the Field of View (FOV) of the first mode is 44.9 μm, the resolution of the Field of View (FOV) of the second mode is 22.5 μm, the resolution of the Field of View (FOV) of the third mode is 15 μm, and the resolution of the Field of View (FOV) of the fourth mode is 9 μm. The resolution of the field of view (FOV) refers to the size of each pixel (pixel) that can be generated by the
For example, assuming that the resolution of the
In this embodiment, since the first carrying bed 21 (which is a large carrying bed) has a large size, and the contrast distances (the first contrast distance (SOD) and the second contrast distance (OID)) in the second mode, the third mode and the fourth mode are smaller than the safety distance Ls corresponding to the first carrying
If the
Please refer to fig. 5A and fig. 5B, wherein fig. 5A is a schematic diagram of a carrying bed according to a second embodiment of the present invention, and fig. 5B is a schematic diagram of a human-machine interface according to a second embodiment of the present invention.
In the embodiment of fig. 5A, the radiography system 1 employs the second supporting
As shown in fig. 5B, the size of the second carrying bed 22 (which is a medium carrying bed) is smaller than that of the first carrying
If the
Please refer to fig. 6A and fig. 6B, wherein fig. 6A is a schematic diagram of a carrying bed according to a third embodiment of the present invention, and fig. 6B is a schematic diagram of a human-machine interface according to a third embodiment of the present invention.
In the embodiment of fig. 6A, the radiography system 1 employs a third supporting
As shown in fig. 6B, the size of the third carrying bed 23 (which is a small carrying bed) is smaller than the first carrying
As shown in fig. 6B, if the
It should be noted that if the
In this embodiment, the load-bearing bed types include at least a large load-bearing bed (e.g. the first load-bearing bed 21), a medium load-bearing bed (e.g. the second load-bearing bed 22) and a small load-bearing bed (e.g. the third load-bearing bed 23), wherein the safety distance Ls of the large load-bearing bed is greater than the safety distance Ls of the medium load-bearing bed, and the safety distance Ls of the medium load-bearing bed is greater than the safety distance Ls of the small load-bearing bed. The processing unit 10, upon recognizing that the currently installed
Referring to fig. 7, a first embodiment of the radiography flowchart of the present invention is shown. Fig. 7 is a diagram illustrating in detail the steps performed by the contrast system 1 according to the present invention when the user selects any of the non-disabled contrast modes 151.
As shown in fig. 7, after a carrying
After the user selects any one of the contrast modes 151, the processing unit 10 obtains a contrast distance of the selected contrast mode 151 (step S32), and adjusts a working distance Lw of the
Specifically, in step S34, the processing unit 10 adjusts the positions (e.g., the positions on the motor axis) of the
After the step S34, the processing unit 10 may further control the
Referring to fig. 8, a second embodiment of the contrast system of the present invention is shown. As shown in fig. 8, when the radiography system 1 is just started or enters the standby mode, an initial working distance Lw is provided between the
When a carrying
When the user selects any one of the contrast modes 151 on the human-
Specifically, the contrast distance of the contrast mode 151 may be a first contrast distance between the
The contrast process is performed based on the adjusted working distance (including the adjusted first working distance L21 and the adjusted second working distance L22), and the image finally generated by the
By the radiography system and the anti-collision method, a user cannot select the radiography mode with improper distance or resolution during operation, so that the situation that the X-ray module or the image detection module collides with the carrying bed can be effectively avoided, and the system and the method are quite convenient for the user.
The above description is only a preferred embodiment of the present invention, and should not be construed as limiting the scope of the present invention, and any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, but such changes and modifications should be included in the scope of the appended claims.
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