X-ray tube voltage setting control method and device

Abstract

The present invention provides a given control method and device for the tube voltage of an X-ray tube, the method comprising the following steps: obtaining the set tube voltage value and the preset tube voltage value of the X-ray tube; judging whether the preset tube voltage value exceeds the tube voltage threshold; if the preset tube voltage value does not exceed the tube voltage threshold, judging whether the preset tube voltage value exceeds the set tube voltage value; if the preset tube voltage value exceeds the tube voltage threshold, judging whether the set tube voltage value exceeds the tube voltage threshold, and whether the preset tube voltage value exceeds the set tube voltage value; and controlling the tube voltage of the X-ray tube to gradually adjust from the set tube voltage value to the preset tube voltage value according to the judgment result. The present invention can effectively prevent the occurrence of discharge phenomenon, thereby increasing the service life of the equipment.

Description

Technical Field

[0001] The present invention relates to the technical field of X-ray tubes, and in particular to a given control method for an X-ray tube voltage and a given control device for an X-ray tube voltage. Background Art

[0002] Although the internal vacuum degree of the X-ray tube is very high, there are still a small amount of residual gas molecules. These residual gas molecules are generally distributed inside the tube, such as the metal surface, insulator, and getter. Therefore, when the tube voltage and tube current are applied instantaneously during the use of the X-ray tube, a certain degree of discharge is likely to occur. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems in the above-mentioned technology to a certain extent. To this end, one object of the present invention is to provide a given control method for the voltage of an X-ray tube, which can effectively prevent the occurrence of discharge phenomenon, thereby increasing the service life of the equipment.

[0004] The second object of the present invention is to provide a given control device for the tube voltage of an X-ray tube.

[0005] To achieve the above-mentioned purpose, a first aspect of the present invention provides a method for controlling the given tube voltage of an X-ray tube, comprising the following steps: obtaining a set tube voltage value and a preset tube voltage value of the X-ray tube; judging whether the preset tube voltage value exceeds a tube voltage threshold; if the preset tube voltage value does not exceed the tube voltage threshold, judging whether the preset tube voltage value exceeds the set tube voltage value; if the preset tube voltage value exceeds the tube voltage threshold, judging whether the set tube voltage value exceeds the tube voltage threshold and whether the preset tube voltage value exceeds the set tube voltage value; and controlling the tube voltage of the X-ray tube to be gradually adjusted from the set tube voltage value to the preset tube voltage value according to the judgment result.

[0006] According to the given control method of the tube voltage of an X-ray tube proposed in an embodiment of the present invention, by comparing a preset tube voltage value, a set tube voltage value and a tube voltage threshold, and controlling the tube voltage of the X-ray tube to gradually adjust from the set tube voltage value to the preset tube voltage value according to the comparison result, the occurrence of discharge phenomenon can be effectively prevented, thereby improving the service life of the equipment.

[0007] In addition, the given control method of the X-ray tube voltage proposed in the above embodiment of the present invention may also have the following additional technical features:

[0008] According to one embodiment of the present invention, controlling the tube voltage of the X-ray tube to be gradually adjusted from the set tube voltage value to the preset tube voltage value according to the judgment result comprises the following steps: when the preset tube voltage value does not exceed the tube voltage threshold, if the preset tube voltage value exceeds the set tube voltage value, controlling the tube voltage of the X-ray tube to be gradually increased from the set tube voltage value to the preset tube voltage value; when the preset tube voltage value does not exceed the tube voltage threshold, if the preset tube voltage value does not exceed the set tube voltage value, controlling the tube voltage of the X-ray tube to be gradually decreased from the set tube voltage value to the preset tube voltage value.

[0009] According to an embodiment of the present invention, controlling the tube voltage of the X-ray tube to be gradually adjusted from the set tube voltage value to the preset tube voltage value according to the judgment result further includes the following steps: when the preset tube voltage value exceeds the tube voltage threshold, if the preset tube voltage value exceeds the set tube voltage value and the set tube voltage value does not exceed the tube voltage threshold, controlling the tube voltage of the X-ray tube to be gradually increased from the set tube voltage value to the tube voltage threshold, and then to the preset tube voltage value; when the preset tube voltage value exceeds the tube voltage threshold, if the preset tube voltage value exceeds the set tube voltage value and the set tube voltage value exceeds the tube voltage threshold, controlling the tube voltage of the X-ray tube to be gradually increased from the set tube voltage value to the preset tube voltage value; when the preset tube voltage value exceeds the tube voltage threshold, if the preset tube voltage value exceeds the set tube voltage value and the set tube voltage value exceeds the tube voltage threshold, controlling the tube voltage of the X-ray tube to be gradually decreased from the set tube voltage value to the preset tube voltage value.

[0010] According to an embodiment of the present invention, if the tube voltage of the X-ray tube is set for the first time, the set tube voltage value is zero.

[0011] To achieve the above-mentioned purpose, a second aspect of the present invention provides a given control device for a tube voltage of an X-ray tube, comprising: an acquisition module, the acquisition module being used to acquire a set tube voltage value and a preset tube voltage value of the X-ray tube; a first judgment module, the first judgment module being used to judge whether the preset tube voltage value exceeds a tube voltage threshold; a second judgment module, the second judgment module being used to judge whether the preset tube voltage value exceeds the set tube voltage value when the preset tube voltage value does not exceed the tube voltage threshold; a third judgment module, the third judgment module being used to judge whether the set tube voltage value exceeds the tube voltage threshold and whether the preset tube voltage value exceeds the set tube voltage value when the preset tube voltage value exceeds the tube voltage threshold; and a control module, the control module being used to control the tube voltage of the X-ray tube to be gradually adjusted from the set tube voltage value to the preset tube voltage value according to the judgment results of the second judgment module and the third judgment module.

[0012] According to the device for controlling the given tube voltage of an X-ray tube provided by an embodiment of the present invention, a preset tube voltage value and a set tube voltage value are obtained by an acquisition module, and the preset tube voltage value, the set tube voltage value and the tube voltage threshold are compared by a first judgment module, a second judgment module and a third judgment module, and the tube voltage of the X-ray tube is controlled to be gradually adjusted from the set tube voltage value to the preset tube voltage value according to the comparison result by a control module, thereby effectively preventing the occurrence of discharge phenomenon, thereby improving the service life of the device.

[0013] In addition, the X-ray tube voltage setting control device according to the above embodiment of the present invention may also have the following additional technical features:

[0014] According to an embodiment of the present invention, the control module includes a first control module and a second control module, wherein the first control module is specifically used to: when the preset tube voltage value does not exceed the tube voltage threshold, if the preset tube voltage value exceeds the set tube voltage value, control the tube voltage of the X-ray tube to gradually increase from the set tube voltage value to the preset tube voltage value; when the preset tube voltage value does not exceed the tube voltage threshold, if the preset tube voltage value does not exceed the set tube voltage value, control the tube voltage of the X-ray tube to gradually decrease from the set tube voltage value to the preset tube voltage value.

[0015] According to an embodiment of the present invention, the second control module is specifically used for: when the preset tube voltage value exceeds the tube voltage threshold, if the preset tube voltage value exceeds the set tube voltage value, and the set tube voltage value does not exceed the tube voltage threshold, controlling the tube voltage of the X-ray tube to gradually increase from the set tube voltage value to the tube voltage threshold, and then to the preset tube voltage value; when the preset tube voltage value exceeds the tube voltage threshold, if the preset tube voltage value exceeds the set tube voltage value, and the set tube voltage value exceeds the tube voltage threshold, controlling the tube voltage of the X-ray tube to gradually increase from the set tube voltage value to the preset tube voltage value; when the preset tube voltage value exceeds the tube voltage threshold, if the preset tube voltage value does not exceed the set tube voltage value, controlling the tube voltage of the X-ray tube to gradually decrease from the set tube voltage value to the preset tube voltage value.

[0016] According to an embodiment of the present invention, if the tube voltage of the X-ray tube is set for the first time, the set tube voltage value is zero. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A flowchart of a method for controlling a given voltage of an X-ray tube according to an embodiment of the present invention;

[0018] Figure 2 A flowchart of a given control method for an X-ray tube voltage under the condition that a preset tube voltage value does not exceed a tube voltage threshold value according to an embodiment of the present invention;

[0019] Figure 3 A flowchart of a given control method for an X-ray tube voltage under a condition that a preset tube voltage value exceeds a tube voltage threshold value according to an embodiment of the present invention;

[0020] Figure 4 Schematic diagram of a block diagram of a device for controlling a given voltage of an X-ray tube according to an embodiment of the present invention;

[0021] Figure 5 The figure is a block diagram of a device for controlling a given voltage of an X-ray tube according to an embodiment of the present invention. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] Figure 1 The figure is a flow chart of a method for controlling a given voltage of an X-ray tube according to an embodiment of the present invention.

[0024] like Figure 1 As shown, the given control method of the X-ray tube voltage of the embodiment of the present invention comprises the following steps:

[0025] S1, obtaining a set tube voltage value and a preset tube voltage value of the X-ray tube.

[0026] Specifically, the set tube voltage value of the X-ray tube can be automatically recorded, and the preset tube voltage value can be input by the operator. If the tube voltage of the X-ray tube is set for the first time, the set tube voltage value in the X-ray tube can be regarded as zero.

[0027] S2, determining whether the preset tube voltage value exceeds the tube voltage threshold.

[0028] Specifically, the tube voltage threshold may be 200 KV, and whether the preset tube voltage value exceeds the tube voltage threshold may be determined by comparing the preset tube voltage value with the tube voltage threshold, that is, whether the preset tube voltage value exceeds 200 KV.

[0029] S3: If the preset tube voltage value does not exceed the tube voltage threshold, determine whether the preset tube voltage value exceeds the set tube voltage value.

[0030] S4, if the preset tube voltage value exceeds the tube voltage threshold, determine whether the set tube voltage value exceeds the tube voltage threshold, and whether the preset tube voltage value exceeds the set tube voltage value.

[0031] S5, according to the judgment result, controlling the tube voltage of the X-ray tube to be gradually adjusted from the set tube voltage value to the preset tube voltage value.

[0032] Among them, the tube voltage of the X-ray tube can be controlled to be gradually adjusted from the set tube voltage value to the preset tube voltage value according to the judgment result of step S3. Specifically, when the preset tube voltage value does not exceed the tube voltage threshold, if the preset tube voltage value exceeds the set tube voltage value, the tube voltage of the X-ray tube is controlled to be gradually increased from the set tube voltage value to the preset tube voltage value; when the preset tube voltage value does not exceed the tube voltage threshold, if the preset tube voltage value does not exceed the set tube voltage value, the tube voltage of the X-ray tube is controlled to be gradually decreased from the set tube voltage value to the preset tube voltage value. It should be understood that when the preset tube voltage value is equal to the set tube voltage value, the tube voltage of the X-ray tube does not need to be adjusted. The case where the preset tube voltage value is equal to the set tube voltage value will not be described below.

[0033] More specifically, if Figure 2As shown (for ease of description, the set tube voltage value can be set to a, the preset tube voltage value can be set to b, and the tube voltage threshold can be 200KV), when the preset tube voltage value does not exceed the tube voltage threshold (b≤200KV), if the preset tube voltage value exceeds the set tube voltage value (b>a), the tube voltage of the X-ray tube is controlled to start from the set tube voltage value, increase by 1KV every 10ms (a=a+1, Time=10ms), until it reaches the preset tube voltage value; when the preset tube voltage value does not exceed the tube voltage threshold (b≤200KV), if the preset tube voltage value does not exceed the set tube voltage value (b<a), the tube voltage of the X-ray tube is controlled to start from the set tube voltage value, decrease by 1KV every 5ms (a=a-1, Time=5ms), until it drops to the preset tube voltage value.

[0034] Wherein, the tube voltage of the X-ray tube may be controlled to be gradually adjusted from the set tube voltage value to the preset tube voltage value according to the judgment result of step S4. Specifically, when the preset tube voltage value exceeds the tube voltage threshold, if the preset tube voltage value exceeds the set tube voltage value, and the set tube voltage value does not exceed the tube voltage threshold, the tube voltage of the X-ray tube is controlled to be gradually increased from the set tube voltage value to the tube voltage threshold, and then increased to the preset tube voltage value; when the preset tube voltage value exceeds the tube voltage threshold, if the preset tube voltage value exceeds the set tube voltage value, and the set tube voltage value exceeds the tube voltage threshold, the tube voltage of the X-ray tube is controlled to be gradually increased from the set tube voltage value to the preset tube voltage value; when the preset tube voltage value exceeds the tube voltage threshold, if the preset tube voltage value does not exceed the set tube voltage value, the tube voltage of the X-ray tube is controlled to be gradually decreased from the set tube voltage value to the preset tube voltage value. It should be understood that when the preset tube voltage value is equal to the set tube voltage value, there is no need to adjust the X-ray tube voltage. The case where the preset tube voltage value is equal to the set tube voltage value will not be described below.

[0035] More specifically, if Figure 3As shown in the figure (for the convenience of description, the set tube voltage value can be set to a, the preset tube voltage value can be set to b, and the tube voltage threshold can be 200KV), when the preset tube voltage value exceeds the tube voltage threshold (b>200KV), if the preset tube voltage value exceeds the set tube voltage value (a<b), and the set tube voltage value does not exceed the tube voltage threshold (a≤200KV), the tube voltage of the X-ray tube is controlled to increase by 1KV (a=a+1, Time=10ms) every 10ms from the set tube voltage value until it reaches the tube voltage threshold, and then increase by 1KV (a=a+1, Time=300ms) every 300ms from the tube voltage threshold until it reaches the preset tube voltage value; when the preset tube voltage value exceeds the set tube voltage value (a<b), and the set tube voltage value does not exceed the tube voltage threshold (a≤200KV), the tube voltage of the X-ray tube is controlled to increase by 1KV (a=a+1, Time=300ms) every 10ms from the set tube voltage value until it reaches the preset tube voltage value; When the preset tube voltage value exceeds the tube voltage threshold value (b>200KV), if the preset tube voltage value exceeds the set tube voltage value (a<b), and the set tube voltage value exceeds the tube voltage threshold value (a>200KV), the tube voltage of the X-ray tube is controlled to start from the set tube voltage value, increase by 1KV every 300ms (a=a+1, Time=300ms), until it reaches the preset tube voltage value; when the preset tube voltage value exceeds the tube voltage threshold value (b>200KV), if the preset tube voltage value does not exceed the set tube voltage value (a>b), the tube voltage of the X-ray tube is controlled to start from the set tube voltage value, decrease by 1KV every 5ms (a=a-1, Time=5ms), until it drops to the preset tube voltage value.

[0036] According to the given control method of the tube voltage of an X-ray tube proposed in an embodiment of the present invention, by comparing a preset tube voltage value, a set tube voltage value and a tube voltage threshold, and controlling the tube voltage of the X-ray tube to gradually adjust from the set tube voltage value to the preset tube voltage value according to the comparison result, the occurrence of discharge phenomenon can be effectively prevented, thereby improving the service life of the equipment.

[0037] Corresponding to the X-ray tube voltage setting control method of the above embodiment, the present invention further provides an X-ray tube voltage setting control device.

[0038] like Figure 4As shown, the given control device of the tube voltage of an X-ray tube according to the embodiment of the present invention comprises an acquisition module 10, a first judgment module 20, a second judgment module 30, a third judgment module 40 and a control module 50. The acquisition module 10 is used to acquire the set tube voltage value and the preset tube voltage value of the X-ray tube; the first judgment module 20 is used to judge whether the preset tube voltage value exceeds the tube voltage threshold; the second judgment module 30 is used to judge whether the preset tube voltage value exceeds the set tube voltage value when the preset tube voltage value does not exceed the tube voltage threshold; the third judgment module 40 is used to judge whether the set tube voltage value exceeds the tube voltage threshold and whether the preset tube voltage value exceeds the set tube voltage value when the preset tube voltage value exceeds the tube voltage threshold; the control module 50 is used to control the tube voltage of the X-ray tube to be gradually adjusted from the set tube voltage value to the preset tube voltage value according to the judgment results of the second judgment module 30 and the third judgment module 40.

[0039] In one embodiment of the present invention, the set tube voltage value of the X-ray tube can be automatically recorded and input into the acquisition module 10, and the preset tube voltage value can be input into the acquisition module 10 by an operator. If the tube voltage of the X-ray tube is set for the first time, the set tube voltage value of the X-ray tube can be regarded as zero.

[0040] In one embodiment of the present invention, the tube voltage threshold may be 200 KV, and the first judgment module 20 may judge whether the preset tube voltage value exceeds the tube voltage threshold, that is, whether the preset tube voltage value exceeds 200 KV, by comparing the preset tube voltage value with the tube voltage threshold.

[0041] In one embodiment of the present invention, Figure 5 As shown, the control module 50 may include a first control module 501 and a second control module 502. The first control module 501 may control the tube voltage of the X-ray tube to be gradually adjusted from the set tube voltage value to the preset tube voltage value according to the judgment result obtained by the second judgment module 30. Specifically, when the preset tube voltage value does not exceed the tube voltage threshold, if the preset tube voltage value exceeds the set tube voltage value, the tube voltage of the X-ray tube is controlled to be gradually increased from the set tube voltage value to the preset tube voltage value; when the preset tube voltage value does not exceed the tube voltage threshold, if the preset tube voltage value does not exceed the set tube voltage value, the tube voltage of the X-ray tube is controlled to be gradually decreased from the set tube voltage value to the preset tube voltage value. It should be understood that when the preset tube voltage value is equal to the set tube voltage value, the tube voltage of the X-ray tube does not need to be adjusted. The case where the preset tube voltage value is equal to the set tube voltage value will not be described below.

[0042] More specifically, if Figure 2As shown (for ease of description, the set tube voltage value can be set to a, the preset tube voltage value can be set to b, and the tube voltage threshold can be 200KV), when the preset tube voltage value does not exceed the tube voltage threshold (b≤200KV), if the preset tube voltage value exceeds the set tube voltage value (b>a), the tube voltage of the X-ray tube is controlled to start from the set tube voltage value, increase by 1KV every 10ms (a=a+1, Time=10ms), until it reaches the preset tube voltage value; when the preset tube voltage value does not exceed the tube voltage threshold (b≤200KV), if the preset tube voltage value does not exceed the set tube voltage value (b<a), the tube voltage of the X-ray tube is controlled to start from the set tube voltage value, decrease by 1KV every 5ms (a=a-1, Time=5ms), until it drops to the preset tube voltage value.

[0043] In one embodiment of the present invention, the second control module 502 may control the tube voltage of the X-ray tube to be gradually adjusted from the set tube voltage value to the preset tube voltage value according to the judgment result obtained by the third judgment module 40. Specifically, when the preset tube voltage value exceeds the tube voltage threshold, if the preset tube voltage value exceeds the set tube voltage value, and the set tube voltage value does not exceed the tube voltage threshold, the tube voltage of the X-ray tube is controlled to be gradually increased from the set tube voltage value to the tube voltage threshold, and then to the preset tube voltage value; when the preset tube voltage value exceeds the tube voltage threshold, if the preset tube voltage value exceeds the set tube voltage value, and the set tube voltage value exceeds the tube voltage threshold, the tube voltage of the X-ray tube is controlled to be gradually increased from the set tube voltage value to the preset tube voltage value; when the preset tube voltage value exceeds the tube voltage threshold, if the preset tube voltage value exceeds the set tube voltage value, and the set tube voltage value exceeds the tube voltage threshold, the tube voltage of the X-ray tube is controlled to be gradually increased from the set tube voltage value to the preset tube voltage value; when the preset tube voltage value exceeds the tube voltage threshold, if the preset tube voltage value does not exceed the set tube voltage value, the tube voltage of the X-ray tube is controlled to be gradually decreased from the set tube voltage value to the preset tube voltage value. It should be understood that when the preset tube voltage value is equal to the set tube voltage value, there is no need to adjust the X-ray tube voltage. The case where the preset tube voltage value is equal to the set tube voltage value will not be described below.

[0044] More specifically, if Figure 3As shown in the figure (for the convenience of description, the set tube voltage value can be set to a, the preset tube voltage value can be set to b, and the tube voltage threshold can be 200KV), when the preset tube voltage value exceeds the tube voltage threshold (b>200KV), if the preset tube voltage value exceeds the set tube voltage value (a<b), and the set tube voltage value does not exceed the tube voltage threshold (a≤200KV), the tube voltage of the X-ray tube is controlled to increase by 1KV (a=a+1, Time=10ms) every 10ms from the set tube voltage value until it reaches the tube voltage threshold, and then increase by 1KV (a=a+1, Time=300ms) every 300ms from the tube voltage threshold until it reaches the preset tube voltage value; when the preset tube voltage value exceeds the set tube voltage value (a<b), and the set tube voltage value does not exceed the tube voltage threshold (a≤200KV), the tube voltage of the X-ray tube is controlled to increase by 1KV (a=a+1, Time=300ms) every 10ms from the set tube voltage value until it reaches the preset tube voltage value; When the preset tube voltage value exceeds the tube voltage threshold value (b>200KV), if the preset tube voltage value exceeds the set tube voltage value (a<b), and the set tube voltage value exceeds the tube voltage threshold value (a>200KV), the tube voltage of the X-ray tube is controlled to start from the set tube voltage value, increase by 1KV every 300ms (a=a+1, Time=300ms), until it reaches the preset tube voltage value; when the preset tube voltage value exceeds the tube voltage threshold value (b>200KV), if the preset tube voltage value does not exceed the set tube voltage value (a>b), the tube voltage of the X-ray tube is controlled to start from the set tube voltage value, decrease by 1KV every 5ms (a=a-1, Time=5ms), until it drops to the preset tube voltage value.

[0045] According to the device for controlling the given tube voltage of an X-ray tube provided by an embodiment of the present invention, a preset tube voltage value and a set tube voltage value are obtained by an acquisition module, and the preset tube voltage value, the set tube voltage value and the tube voltage threshold are compared by a first judgment module, a second judgment module and a third judgment module, and the tube voltage of the X-ray tube is controlled to be gradually adjusted from the set tube voltage value to the preset tube voltage value according to the comparison result by a control module, thereby effectively preventing the occurrence of discharge phenomenon, thereby improving the service life of the device.

[0046] In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. "Multiple" means two or more, unless otherwise clearly and specifically defined.

[0047] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0048] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0049] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.

Claims

1. A method for controlling the voltage of an X-ray tube, characterized in that: The following steps are involved: Obtaining a set tube voltage value and a preset tube voltage value of the X-ray tube; Determining whether the preset tube voltage value exceeds a tube voltage threshold; If the preset tube voltage value does not exceed the tube voltage threshold, determining whether the preset tube voltage value exceeds the set tube voltage value; If the preset tube voltage value exceeds the tube voltage threshold, determining whether the set tube voltage value exceeds the tube voltage threshold, and whether the preset tube voltage value exceeds the set tube voltage value; According to the judgment result, the X-ray tube voltage is controlled to be gradually adjusted from the set tube voltage value to the preset tube voltage value; Controlling the tube voltage of the X-ray tube to be gradually adjusted from the set tube voltage value to the preset tube voltage value according to the judgment result comprises the following steps: when the preset tube voltage value does not exceed the tube voltage threshold, if the preset tube voltage value exceeds the set tube voltage value, controlling the tube voltage of the X-ray tube to be gradually increased from the set tube voltage value to the preset tube voltage value; when the preset tube voltage value does not exceed the tube voltage threshold, if the preset tube voltage value does not exceed the set tube voltage value, controlling the tube voltage of the X-ray tube to be gradually decreased from the set tube voltage value to the preset tube voltage value, Controlling the X-ray tube voltage to be gradually adjusted from the set tube voltage value to the preset tube voltage value according to the judgment result, further comprising the following steps: when the preset tube voltage value exceeds the tube voltage threshold, if the preset tube voltage value exceeds the set tube voltage value and the set tube voltage value does not exceed the tube voltage threshold, controlling the X-ray tube voltage to be gradually increased from the set tube voltage value to the tube voltage threshold, and then to the preset tube voltage value; when the preset tube voltage value exceeds the tube voltage threshold, if the preset tube voltage value exceeds the set tube voltage value and the set tube voltage value exceeds the tube voltage threshold, controlling the X-ray tube voltage to be gradually increased from the set tube voltage value to the preset tube voltage value; when the preset tube voltage value exceeds the tube voltage threshold, if the preset tube voltage value exceeds the set tube voltage value and the set tube voltage value exceeds the tube voltage threshold, controlling the X-ray tube voltage to be gradually decreased from the set tube voltage value to the preset tube voltage value.

2. The method for controlling the voltage of an X-ray tube according to claim 1, characterized in that: in, If the tube voltage of the X-ray tube is set for the first time, the set tube voltage value is zero.

3. A device for controlling the voltage of an X-ray tube, characterized in that: include: An acquisition module, the acquisition module is used to acquire a set tube voltage value and a preset tube voltage value of the X-ray tube; A first judgment module, the first judgment module is used to judge whether the preset tube voltage value exceeds the tube voltage threshold; a second judgment module, the second judgment module being used to judge whether the preset tube voltage value exceeds the set tube voltage value when the preset tube voltage value does not exceed the tube voltage threshold; a third judgment module, the third judgment module being used to judge whether the set tube voltage value exceeds the tube voltage threshold and whether the preset tube voltage value exceeds the set tube voltage value when the preset tube voltage value exceeds the tube voltage threshold; a control module, the control module being used to control the tube voltage of the X-ray tube to be gradually adjusted from the set tube voltage value to the preset tube voltage value according to the judgment results of the second judgment module and the third judgment module, The control module includes a first control module and a second control module, wherein the first control module is specifically used to: when the preset tube voltage value does not exceed the tube voltage threshold, if the preset tube voltage value exceeds the set tube voltage value, control the tube voltage of the X-ray tube to gradually increase from the set tube voltage value to the preset tube voltage value; when the preset tube voltage value does not exceed the tube voltage threshold, if the preset tube voltage value does not exceed the set tube voltage value, control the tube voltage of the X-ray tube to gradually decrease from the set tube voltage value to the preset tube voltage value, The second control module is specifically used for: when the preset tube voltage value exceeds the tube voltage threshold, if the preset tube voltage value exceeds the set tube voltage value, and the set tube voltage value does not exceed the tube voltage threshold, controlling the tube voltage of the X-ray tube to gradually increase from the set tube voltage value to the tube voltage threshold, and then to the preset tube voltage value; when the preset tube voltage value exceeds the tube voltage threshold, if the preset tube voltage value exceeds the set tube voltage value, and the set tube voltage value exceeds the tube voltage threshold, controlling the tube voltage of the X-ray tube to gradually increase from the set tube voltage value to the preset tube voltage value; when the preset tube voltage value exceeds the tube voltage threshold, if the preset tube voltage value does not exceed the set tube voltage value, controlling the tube voltage of the X-ray tube to gradually decrease from the set tube voltage value to the preset tube voltage value.

4. The X-ray tube voltage setting control device according to claim 3, characterized in that: in, If the tube voltage of the X-ray tube is set for the first time, the set tube voltage value is zero.

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