DR equipment and control method thereof

Abstract

The invention discloses DR equipment and a control method thereof. The control method comprises the following steps: receiving a voice signal sent by a user; one or more body position modes set by a user are obtained, and in any body position mode, an X-ray image, generated by the DR equipment, of the shot object is used for representing the attenuation degree of the interior of the shot object to X rays; and when the DR equipment is in any body position mode, recognizing a voice control instruction matched with the current body position mode in the voice signal, responding to the voice control instruction, controlling the DR equipment to operate in the current body position mode, and / or adjusting exposure parameters of the DR equipment in the current body position mode. The DR equipment and the control method thereof can reduce manual operation of a user and improve the working efficiency of the user.

Description

DR device and control method thereof Technical Field

[0001] The present invention relates to medical equipment, and in particular to a DR device and a control method thereof. Background Art

[0002] DR equipment, or direct digital radiography (DR) equipment, is widely used in clinical settings. Currently, mainstream DR equipment relies primarily on manual operation by medical personnel. For example, exposure requires the operator to press a hand switch or foot pedal to initiate the exposure, significantly limiting staff positioning and making operation relatively cumbersome. This issue is particularly acute with DR equipment used in veterinary hospitals, where at least two people are typically required to complete the imaging of pets. Because animals cannot follow commands like humans, the medical personnel must manually control the animal's posture or position when capturing multiple body positions. This requires at least two medical personnel, one of whom is responsible for securing the animal while the other operates the hand switch or foot pedal to control exposure. Therefore, there is an urgent need to simplify the operation of DR equipment for medical personnel, freeing them from the tedious and inconvenient operation and enabling single-person DR imaging of animals. Technical issues

[0003] The present invention mainly provides a DR device capable of operating and / or adjusting exposure parameters through voice control, and a control method of the DR device. Technical Solutions

[0004] According to a first aspect, an embodiment provides a DR device, including:

[0005] The tube is used to generate X-rays to expose the subject;

[0006] Beam limiter, used to limit the X-ray irradiation field;

[0007] a flat panel detector, configured to receive the X-rays generated by the tube so as to enable the DR device to generate an X-ray image of the object;

[0008] A voice receiving device, used to receive a voice signal sent by a user;

[0009] a controller configured to obtain one or more body posture modes set by a user, wherein in any of the body posture modes, the X-ray image of the subject generated by the DR device is used to characterize the attenuation degree of the X-ray inside the subject;

[0010] When the DR device is in any body position mode, it identifies the voice control instructions in the voice signal that match the current body position mode, responds to the voice control instructions, controls the operation of the DR device in the current body position mode, and / or adjusts the exposure parameters of the DR device in the current body position mode.

[0011] According to a second aspect, an embodiment provides a method for controlling a DR device, including:

[0012] Receive voice signals from users;

[0013] Acquiring one or more body posture modes set by a user, wherein in any of the body posture modes, the X-ray image of the subject generated by the DR device is used to represent the attenuation degree of the X-ray inside the subject;

[0014] When the DR device is in any body position mode, it identifies the voice control instructions in the voice signal that match the current body position mode, responds to the voice control instructions, controls the operation of the DR device in the current body position mode, and / or adjusts the exposure parameters of the DR device in the current body position mode. Beneficial effects

[0015] According to the DR device and control method of the above-described embodiment, a voice signal emitted by a user is received and voice control commands matching the current body posture mode are identified within the voice signal. Based on the identified voice control signals, the DR device can be controlled in the current body posture mode, allowing the user to perform general DR device operations using voice. Furthermore, the DR device's exposure parameters in the current body posture mode can be adjusted, freeing the user from having to manually set exposure parameters, reducing the user's workload, and improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] FIG1 is a schematic diagram showing the composition of a DR device according to an embodiment;

[0017] FIG2 is a schematic structural diagram of a DR device according to an embodiment;

[0018] FIG3 is a schematic diagram of an operation interface of a DR device according to an embodiment;

[0019] FIG4 is an output display interface of an X-ray image of a DR device in one embodiment;

[0020] FIG5 is a flow chart of a method for controlling a DR device according to an embodiment;

[0021] 10. Ball tube;

[0022] 20. Beam limiter;

[0023] 31. Flat panel detector; 32. Ionization chamber; 33. Grid;

[0024] 40. Voice receiving device;

[0025] 50. Controller;

[0026] 60. Floating bed. Modes for Carrying Out the Invention

[0027] The present invention will be further described in detail below by means of specific embodiments in conjunction with the accompanying drawings. Similar elements in different embodiments are numbered with associated similar elements. In the following embodiments, many detailed descriptions are provided to enable the present application to be better understood. However, those skilled in the art will readily appreciate that some of the features may be omitted in different circumstances, or may be replaced by other elements, materials, or methods. In some cases, some operations related to the present application are not shown or described in the specification. This is to avoid the core portion of the present application being overwhelmed by excessive descriptions, and for those skilled in the art, it is not necessary to describe these related operations in detail. They will fully understand the related operations based on the description in the specification and the general technical knowledge in the art.

[0028] In addition, the features, operations, or characteristics described in the specification may be combined in any appropriate manner to form various embodiments. Furthermore, the steps or actions in the method description may be reordered or adjusted in a manner readily apparent to those skilled in the art. Therefore, the various sequences in the specification and drawings are provided solely for the purpose of clearly describing a particular embodiment and are not intended to be mandatory, unless otherwise specified.

[0029] Component numbers used herein, such as "first" and "second," are used solely to distinguish the components being described and do not convey any sequential or technical meaning. References to "connection" and "coupling" herein, unless otherwise specified, include both direct and indirect connections (couplings).

[0030] The irradiation field referred to in this article refers to the range irradiated by the X-rays of the DR device. The size of the irradiation field will affect the contrast and optical density of the image.

[0031] The most important concept of this article is to set up a voice receiving device on the DR device to add a voice recognition function, and set up a series of error-prone voice control instructions for the workflow of the DR device to improve user work efficiency.

[0032] 1 and 2 , a DR device is provided, including a tube 10 , a beam limiter 20 , a flat panel detector 31 , a voice receiving device 40 , and a controller 50 .

[0033] The tube 10 is used to generate X-rays to penetrate the subject and expose the subject. The subject can be an animal or a human. The tube 10 can include an X-ray tube filament as a cathode and a target metal (such as tungsten or molybdenum) as an anode. By supplying power and heating the X-ray tube filament, free electrons are generated near the cathode. When high voltage (tens or hundreds of kV) is supplied to the two poles, the potential difference between the cathode and the anode increases sharply, and the electrons travel from the cathode to the anode at high speed, bombarding the anode target metal and converting energy, wherein less than 1% of the energy is converted into X-rays and more than 99% is converted into heat energy, thereby generating X-rays.

[0034] The beam limiter 20 is used to block unnecessary primary X-rays, limiting the X-ray irradiation field to the minimum required for exposure, thereby minimizing the X-ray dose received by the subject during exposure. In some embodiments, the beam limiter 20 adjusts or limits the irradiation field using lead plates with adjustable gaps. The beam limiter 20 can manually or electrically adjust the gaps in the lead plates to change the size of the window that allows the primary X-rays to pass through, thereby changing the X-ray irradiation field during exposure.

[0035] The flat panel detector 31 receives X-rays generated by the tube 10, allowing the DR device to generate X-ray images of the subject. In some embodiments, the DR device also includes an ionization chamber 32 and a grid 33. The ionization chamber 32 and grid 33 are located in front of the flat panel detector 31 (between the subject and the flat panel detector 31). The grid 33 eliminates scattered light, enhancing the clarity of the X-ray image, while the ionization chamber 32 measures ionizing radiation. In other embodiments, the flat panel detector 31 includes a front housing, a radiation conversion layer, a photoelectric conversion layer, a support structure, a circuit board, and a rear housing. The radiation conversion layer converts radiation into visible light. The radiation conversion layer typically includes a scintillating layer or a fluorescent layer for converting radiation into visible light. For example, the scintillating layer can be made of a scintillating material, typically cesium iodide (CsI) or gadolinium oxysulfide (GOS). The photoelectric conversion layer can be a TFT matrix layer, which senses the visible light converted by the radiation conversion layer and converts it into an electrical signal for image acquisition.

[0036] The voice receiving device 40 is used to receive voice signals from the user. This embodiment does not limit the specific structure and type of the voice receiving device 40. For example, the voice receiving device 40 can be a common microphone or speaker. Furthermore, this embodiment does not limit the specific location of the voice receiving device 40 on the DR device.

[0037] The controller 50 can be the nerve center and command center of the DR device, or the command center in the DR device that is responsible for the machine posture control or display control. The controller 50 can generate an operation control signal based on the instruction operation code and the timing signal to complete the control of executing the instruction. In this embodiment, the controller 50 is used to obtain one or more posture modes set by the user. A posture mode is used to represent a posture to be measured of the subject. For example, the posture mode includes a left side posture mode and a ventral-dorsal posture mode, which respectively represent that the posture to be measured is the left side posture and the ventral-dorsal posture. The following is an example in which the user sets at least two posture modes. In any posture mode, the X-ray image of the subject generated by the DR device is used to characterize the degree of attenuation of the internal tissue of the subject for X-rays. The degree of attenuation of the internal tissue of the subject for X-rays can reflect the density, thickness and other information of the corresponding tissue. For example, the tissue information of the lungs, heart or bones of the subject is different, and the degree of attenuation of X-rays is also different.

[0038] In some embodiments, the user selects the posture mode manually. For example, FIG3 is an operation interface of a DR device, in which the user selects two posture modes, namely, the left lateral posture mode and the ventral-dorsal posture mode.

[0039] In some embodiments, the user can select the body position mode by voice. For example, when the user sends a voice signal including "select left side position", the controller 50 selects the left side position mode in response to the voice signal. When the user sends a voice signal including "select front-back position", the controller 50 selects the front-back position mode in response to the voice signal.

[0040] In some embodiments, at least two body posture modes have a certain order. In some embodiments, the order can be set by the user when setting the body posture mode, for example, the order of the body posture modes can be set according to the order in which the user selects the body posture modes. In other embodiments, the order can be set by the user after setting the body posture mode, for example, after the user selects the body posture mode, the selected body posture modes are sorted.

[0041] After setting one or more body position modes, when the DR device is in any of these body position modes, the controller 50 recognizes voice control commands in the voice signal that match the current body position mode. The aforementioned DR device being in a body position mode is distinct from setting one or more body position modes. In typical operation, the user first sets one or more body position modes, then selects or enters a particular body position mode according to a preset rule to begin exposure. For example, if the user sets four body position modes and chooses to enter one of them first, or if the user sets the order of the four body position modes, the DR device will automatically enter the first body position mode. After the DR device enters a body position mode, the hardware and / or software may load default parameters or automatically move some components to default positions. Furthermore, the DR device can begin exposure in this body position mode, and the resulting X-ray image will be associated with the desired body position corresponding to the body position mode. For example, if the DR device enters the left side position mode, the device will expose the X-ray image to the left side of the subject as expected. In addition, this association can also be reflected in the display interface of the DR device. For example, when the DR device is in the left-lateral position mode, the X-ray image is arranged in the area reserved for the left-lateral position mode on the display interface for the user to view. For example, Figure 4 shows the output display interface of the X-ray image. The [Exposure Parameter List] shows the current exposure parameters, the [Position List] shows the currently set position mode, and the X-ray image display area on the right is used to display the generated X-ray image.

[0042] In some embodiments, the voice control instructions for body posture pattern matching are pre-set. In other embodiments, the voice control instructions for body posture pattern matching can also be customized by the user. The voice control instructions for different body posture patterns can be the same or different. The following example uses the example of the same voice control instructions for different body posture patterns. In other embodiments, the voice control instructions missing from one body posture pattern compared to other body posture patterns can be replaced through manual operation or other methods.

[0043] If the controller 50 recognizes a voice control command that matches the current body posture pattern, it will respond to the voice control command and control the DR device to perform certain operations. In DR devices without a voice receiver 40, these operations are typically performed manually by the user. The following details how the controller 50 responds to voice control commands. It should also be noted that in other embodiments, the voice receiver 40 may also be responsible for recognizing voice control commands, with the controller 50 being responsible for responding to them.

[0044] In some embodiments, the controller 50 controls the operation of the DR device in the current posture mode in response to voice control instructions.

[0045] Exemplarily, the voice control instructions for controlling the DR device to operate in the current posture mode include, but are not limited to, a preparation instruction, an exposure instruction, and a cancel instruction. For example, when the controller 50 recognizes "prepare" in the voice signal sent by the user, it indicates that the preparation instruction has been issued; when the controller 50 recognizes "exposure" in the voice signal sent by the user, it indicates that the exposure instruction has been issued; and when the controller 50 recognizes "cancel" in the voice signal sent by the user, it indicates that the cancel instruction has been issued.

[0046] The controller 50 responds to the preparation instruction and controls the DR device to perform pre-exposure preparation in the current posture mode. For example, the preparation includes but is not limited to high voltage preparation, starting the rotation of the tube 10 and heating the filament.

[0047] The controller 50 responds to the exposure instruction and controls the DR device to start exposure in the current posture mode. For example, if there is no other operation or instruction to cancel the exposure, the controller 50 controls the tube 10 to load high voltage to generate X-rays, and the flat panel detector 31 receives the X-rays to generate an X-ray image of the object.

[0048] If the DR device is in the process of preparing for exposure and the controller 50 recognizes a cancel command, it controls the DR device to cancel the pre-exposure preparations. For example, this may involve stopping the heating of the filament of the bulb 10 or braking the bulb 10. If the DR device is in the process of exposing an image and the controller 50 recognizes a cancel command, it controls the DR device to cancel the exposure. The process canceled by the cancel command is determined by the command currently being responded to by the controller 50.

[0049] The inventors have found in practice that the setting of the above-mentioned voice control instructions simplifies the user's operation and improves the user's work efficiency to a certain extent, but there are still areas for improvement. For users with less experience or who are not familiar with the operation of DR equipment, the voice control instructions may be erroneous or untimely. For example, the exposure instruction is issued before the voice control DR device is performed to perform the preparation work, or the specific sentence of the exposure instruction is forgotten after the DR device is controlled to enter the preparation work, causing the DR device to remain in the preparation stage. In order to avoid the occurrence of various errors or mistakes, the response conditions of the voice control instructions are further designed in some embodiments of the present application to further lower the threshold for using the DR device and facilitate its use by novices. Specifically:

[0050] In some embodiments, after the DR device enters a certain posture mode, if no preparation instruction is recognized, or if the DR device has not completed preparation, the controller 50 will not respond to the exposure instruction even if it recognizes the exposure instruction.

[0051] In some embodiments, after the controller 50 responds to a preparation instruction and controls the DR device to perform pre-exposure preparations in the current body position mode, if the exposure instruction is not recognized within a preset first time period, the pre-exposure preparations are canceled. If the exposure instruction is recognized, the DR device is controlled to start exposure in the current body position mode. The above-mentioned first time period can be set according to the length of time required for the DR device's preparation. For example, if the exposure instruction is recognized within 20 seconds after the preparation instruction is recognized, the exposure is started. If the exposure instruction is not recognized within 20 seconds, the DR device is controlled to exit the preparation process. The above embodiment sets the sequence and response time between the exposure instruction and the preparation instruction to prevent the user from forgetting to start the exposure and causing the DR device to remain in the preparation stage for a long time.

[0052] In some embodiments, after the controller 50 controls the DR device to perform pre-exposure preparations in the current body position mode in response to a prepare instruction, if a cancel instruction is recognized within a preset second time period, the controller 50 controls the DR device to cancel the pre-exposure preparations in the current body position mode in response to the cancel instruction. The second time period can be set based on the duration required for the DR device to perform the preparations. For example, if a cancel instruction is recognized within 10 seconds of the prepare instruction, the preparations are canceled.

[0053] In some embodiments, after the controller 50 controls the DR device to initiate exposure in the current body position mode in response to an exposure instruction, if a cancel instruction is recognized within a preset third duration, the controller 50 controls the DR device to cancel the exposure in the current body position mode in response to the cancel instruction. If no cancel instruction is received, the controller 50 generates a corresponding X-ray image based on the X-rays received by the flat panel detector 31 after the exposure is initiated. The third duration can be set based on the required exposure duration of the DR device.

[0054] In some embodiments, when multiple body posture modes have a specified sequence, after the controller 50 responds to an exposure instruction and controls the DR device to initiate exposure in the current body posture mode, the controller 50 detects whether an X-ray image has been generated. If the controller 50 detects that the DR device has generated an X-ray image in the current body posture mode, the controller 50 controls the DR device to enter the next body posture mode according to the specified sequence. For example, after an X-ray image has been generated in the left lateral position mode, the controller 50 controls the DR device to enter the next ventral-dorsal position mode. To the user, this appears to be the DR device automatically switching between body posture modes.

[0055] In the above embodiments, the controller 50 does not respond to the corresponding voice control instructions when certain conditions are not met. In other embodiments, the controller 50 may also turn off the recognition function of the corresponding voice control instructions when the corresponding conditions are not met, or even directly control the voice receiving device 40 to stop receiving voice signals. From the user's intuitive point of view, the voice control instructions issued by themselves are not responded to.

[0056] In some embodiments, the controller 50 adjusts the exposure parameters of the DR device in the current body position mode in response to voice control commands. Exposure parameters include, but are not limited to, parameters used by the DR device during pre-exposure preparation and during exposure. In some embodiments, each body position mode has preset exposure parameters. Upon entering a body position mode, the DR device first loads the preset exposure parameters for that body position mode and then recognizes the user's voice to determine whether to subsequently adjust the exposure parameters. If the exposure parameters are adjusted in response to the voice control command, the controller 50 saves the adjusted exposure parameters for subsequent exposures of the same subject in the current body position mode. For example, if a user enters information about the subject, such as type, height, and weight, and then controls the DR device to enter the left-lateral position mode, the DR device automatically loads the preset exposure parameters for that subject in the left-lateral position mode and waits for the user to initiate exposure. If the exposure parameters are adjusted in response to the voice control command, the adjusted exposure parameters are saved. If exposure is continued in the left-lateral position mode, or if the left-lateral position mode is re-entered without the subject changing, the previously saved exposure parameters will be used.

[0057] Exemplarily, the controller 50, in response to a voice control command, can adjust at least one of the tube voltage, tube current, and duration of the X-ray generation when the tube 10 is exposing the subject to generate X-rays. For example, the tube voltage, tube current, and duration of the X-ray generation by the tube 10 are all pre-set levels, each with a corresponding parameter value. If the controller 50 recognizes "kV+" in the voice signal sent by the user, the tube voltage of the tube 10 is increased by one level; otherwise, the tube voltage of the tube 10 is decreased by one level. If the controller 50 recognizes "mA+" in the voice signal sent by the user, the tube current of the tube 10 is increased by one level; otherwise, the tube current of the tube 10 is decreased by one level. If the controller 50 recognizes "mS+" in the voice signal sent by the user, the duration of the X-ray generation by the tube 10 is increased by one level; otherwise, the duration of the X-ray generation by the tube 10 is decreased by one level.

[0058] In addition, the controller 50 can also respond to voice control instructions to adjust the body thickness parameter of the subject. The body thickness parameter is used to characterize the body thickness of the subject along the X-ray direction during exposure. Different body thicknesses have different degrees of attenuation for X-rays.

[0059] In some embodiments, a specific response order relationship can be established between the voice control instructions for controlling the operation of the DR device and the voice control instructions for adjusting exposure parameters. For example, a response to the voice control instructions for adjusting exposure parameters can be set to be withheld for a period of time after receiving the exposure instruction to prevent changes in exposure parameters from affecting the exposure process. Thus, the voice control instructions herein can not only simplify the user's manual operation, but also establish a specific relationship between voice control instructions, making the operation more standardized.

[0060] In some embodiments, when the DR device is in any body position mode, the controller 50 recognizes a mode selection instruction in a voice signal and, in response to the mode selection instruction, changes the current body position mode to a selected one of at least two body position modes. In other words, the user can control which body position mode the DR device enters based on voice, and this control may not follow the specified order among the multiple body position modes. For example, if the user has set three body position modes, namely, body position mode A, body position mode B, and body position mode C, with the letters of the three body position modes indicating the order among the three body position modes, and the current body position mode is body position mode A, if an X-ray image is generated in body position mode A, then in some embodiments, the DR device will automatically enter body position mode B. In an embodiment where the DR device is controlled by voice, if the controller 50 recognizes "enter body position mode C" in the user's voice signal, then body position mode B will be skipped and the device will directly enter body position mode C.

[0061] In other embodiments, the mode selection instruction may also follow the specified order between multiple posture modes. For example, the user sets three posture modes, namely posture mode A, posture mode B and posture mode C. The letters of the three posture modes also represent the order between the three posture modes. The current posture mode is posture mode B. If the controller 50 recognizes "posture +" in the voice signal sent by the user, the controller 50 controls the DR device to jump to the next posture mode, that is, enters posture mode C; and if the controller 50 recognizes "posture -" in the voice signal sent by the user, the controller 50 controls the DR device to jump to the previous posture mode, that is, enters posture mode A. It should be noted that if the exposure parameters have been adjusted through voice control instructions in posture mode A, the DR device will automatically load the previously adjusted exposure parameters when entering posture mode A. In some scenarios, jumping back to the previous posture mode means that the user is not satisfied with the X-ray image obtained in the last posture mode and hopes to take the X-ray image again. In order to make voice control friendly, in some embodiments, if the controller 50 recognizes "retake" in the voice signal sent by the user, it also controls the DR device to jump to the previous body posture mode to use the previously saved exposure parameters to obtain the X-ray image again. Of course, after jumping to the previous body posture mode, you can also continue to adjust the exposure parameters of the body posture mode.

[0062] In some embodiments, in addition to using voice to control the operation of the DR device in the current body position mode and / or adjust the exposure parameters of the DR device in the current body position mode, the controller 50 can also control the operation and / or parameters of the peripheral mechanisms, motion mechanisms, etc. of the DR device based on voice. In addition, when using voice to control the operation of the above-mentioned mechanisms or components, the DR device may be in a certain body position mode or not. Even if the user has not set one or more body position modes, the user can control the operation of these peripheral mechanisms, motion mechanisms, etc. through voice.

[0063] In some embodiments, the controller 50 also recognizes control instructions of the beam limiter 20 in the voice signal. If the controller 50 recognizes "turn on the light" in the voice signal sent by the user, the controller 50 controls the light source in the beam limiter 20 to turn on, and the light source can simulate the irradiation range when the tube 10 emits X-rays; if the controller 50 recognizes "turn off the light" in the voice signal sent by the user, the controller 50 controls the light source in the beam limiter 20 to turn off; if the controller 50 recognizes "increase irradiation field" in the voice signal sent by the user, the controller 50 controls the beam limiter 20 to increase the restricted irradiation field, for example, increase the size of the lead window in the beam limiter 20 for passing X-rays; if the controller 50 recognizes "reduce irradiation field" in the voice signal sent by the user, the controller 50 controls the beam limiter 20 to reduce the restricted irradiation field, for example, reduce the size of the lead window in the beam limiter 20 for passing X-rays.

[0064] In some embodiments, the DR device further includes a floating bed 60 for supporting the subject being filmed, and a locking structure for locking the floating bed 60. When the locking structure locks the floating bed 60, the floating bed 60 cannot move. When the locking structure is unlocked, the floating bed 60 can move in multiple directions. The controller 50 also recognizes locking control instructions in voice signals. If the controller 50 recognizes "lock bed" in the user's voice signal, the controller 50 controls the locking structure to lock the floating bed 60. If the controller 50 recognizes "unlock bed" in the user's voice signal, the controller 50 controls the locking structure to unlock the floating bed 60.

[0065] In some embodiments, the voice recognition function of the DR device can be turned on or off. After the voice receiving device 40 begins receiving a voice signal, the controller 50 detects whether a voice command to turn on the voice recognition function appears in the voice signal. If so, it begins recognizing various control commands in the voice signal. Furthermore, it detects whether a voice command to turn off the voice recognition function appears in subsequent received voice signals. If a voice command to turn off the voice recognition function appears, the voice signal is no longer recognized. In other words, the voice recognition function of the DR device is actively turned on or off by the user. In other embodiments, the DR device can also automatically turn off the voice recognition function. After detecting the presence of a voice command to turn on the voice signal, if no voice control command is recognized within a preset fourth time period, the voice recognition function is turned off. After the voice recognition function is turned off, the DR device can be manually operated by the user. Therefore, the voice control in this application does not conflict with traditional manual operation control. The user can choose to control the DR device via voice or continue to use traditional manual operation for certain steps.

[0066] The following example illustrates the complete voice control process. In this example, the subject is an animal, and the sequence numbers between the steps do not represent the order of the steps. This example includes:

[0067] 1. In the DR device's operating interface, the doctor enters information such as the animal's size and species, and selects the area to be imaged. The DR device automatically adds the corresponding body position mode and preset exposure parameters based on the doctor's information.

[0068] 2. The DR device automatically enters a posture mode T1 and automatically loads the preset exposure parameters of the current posture T1.

[0069] 3. Determine whether the "Turn on voice" command is recognized. If not, disable voice recognition. If so, enable voice recognition and monitor subsequent commands in the voice signal. Once voice recognition is enabled, it will not be turned off until the "Turn off voice" command is received, or if no other voice control commands are received within one minute, the voice recognition function will be automatically turned off.

[0070] 4. If a voice control command for adjusting exposure parameters, such as "kV+", "mA+", etc., is recognized, or a voice control command for controlling peripheral mechanisms, such as "turn on the light", "unlock the bed", etc., the DR device is controlled to perform the corresponding action.

[0071] 5. If the preparation instruction is recognized, high-voltage preparation will be started, the tube 10 will start rotating, the filament will be heated, etc., to enter the state of preparation for exposure and wait for the next voice control instruction; otherwise, no action will be taken; if no exposure instruction is received within the next 20 seconds, the state of preparation for exposure will be automatically exited and the cancellation process of the preparation work will be executed.

[0072] 6. If a cancel command is recognized after the preparation command is recognized, the state of preparing for exposure is exited, the filament stops heating, and the tube 10 stops rotating by braking.

[0073] 7. If the exposure command is recognized within 20 seconds after the preparation command is recognized, the system enters the exposure state, loads high voltage, generates radiation, receives radiation and outputs the image, and finally obtains the X-ray image taken in the current body position T1.

[0074] 8. The DR device automatically jumps to the next body position mode T2 and loads the corresponding preset exposure parameters.

[0075] 9. If "retake" is recognized, it will jump back to the previous posture T1. The DR device will automatically load the exposure parameters of the previous posture mode T1 and wait for a new round of voice instructions.

[0076] 10. If "Position+" is recognized, it will jump to the next position and the DR device will automatically load the corresponding preset exposure parameters.

[0077] 11. If the "Body Position -" command is recognized, it will jump to the previous body position and the DR device will automatically load the corresponding preset exposure parameters.

[0078] Referring to the embodiment shown in FIG. 5 , a method for controlling a DR device is provided in the embodiment, comprising the steps of:

[0079] Step 100: Receive a voice signal from a user. The voice signal can be a complete sentence, a partial word, or a specific sound.

[0080] Step 200, obtain one or more body position modes set by the user. A body position mode is used to represent a body position to be measured of the subject. For example, the body position mode includes a left lateral position mode and a ventral-dorsal position mode, which respectively represent that the body position to be measured is the left lateral position and the ventral-dorsal position. The following description is made by taking the example of at least two body position modes set by the user. In any body position mode, the X-ray image of the subject generated by the DR device is used to characterize the degree of attenuation of the internal tissue of the subject for X-rays. The degree of attenuation of the internal tissue of the subject for X-rays can reflect the density, thickness and other information of the corresponding tissue. For example, the tissue information of the lungs, heart or bones of the subject is different, and the degree of attenuation of X-rays is also different.

[0081] In some embodiments, the user selects the posture mode manually. For example, FIG3 is an operation interface of a DR device, in which the user selects two posture modes, namely, the left lateral posture mode and the ventral-dorsal posture mode.

[0082] In some embodiments, the user can select a body position mode by voice. For example, if the user sends a voice signal including "select left side position", the left side position mode is selected in response to the voice signal; if the user sends a voice signal including "select front-back position", the front-back position mode is selected in response to the voice signal.

[0083] In some embodiments, at least two body posture modes have a certain order. In some embodiments, the order can be set by the user when setting the body posture mode, for example, the order of the body posture modes can be set according to the order in which the user selects the body posture modes. In other embodiments, the order can be set by the user after setting the body posture mode, for example, after the user selects the body posture mode, the selected body posture modes are sorted.

[0084] Step 300: When the DR device is in any body posture mode, identify the voice control instructions in the voice signal that match the current body posture mode.

[0085] The aforementioned DR device operating in a single body position mode is distinct from setting one or more body position modes. In typical operation, the user first sets one or more body position modes, then selects or enters a specific body position mode according to preset rules to begin exposure. For example, if a user sets four body position modes and chooses to enter one of them first, or if the user sets the order of the four body position modes, the DR device will automatically enter the first body position mode. After the DR device enters a body position mode, it may load default parameters or automatically move some components to default positions at the hardware and / or software level. Furthermore, the DR device can begin exposure in that body position mode, and the resulting X-ray image will be associated with the desired body position in that body position mode. For example, if the DR device enters the left-lateral position mode, the DR device will expose the X-ray image to the left side of the subject. Furthermore, this association can be reflected on the DR device's display interface. For example, the X-ray image obtained in the left-lateral position mode will be displayed in the area reserved for the left-lateral position mode for the user to view.

[0086] In some embodiments, the voice control instructions for body posture pattern matching are pre-set. In other embodiments, the voice control instructions for body posture pattern matching can also be customized by the user. The voice control instructions for different body posture patterns can be the same or different. The following example uses the example of the same voice control instructions for different body posture patterns. In other embodiments, the voice control instructions missing from one body posture pattern compared to other body posture patterns can be replaced through manual operation or other methods.

[0087] Step 400: In response to the voice control instruction, control the operation of the DR device in the current body position mode, and / or adjust the exposure parameters of the DR device in the current body position mode.

[0088] Exemplarily, voice control commands for controlling the DR device to operate in the current posture mode include, but are not limited to, preparation commands, exposure commands, and cancel commands. For example, if "prepare" is recognized in a user's voice signal, it indicates that a preparation command has been issued; if "exposure" is recognized in a user's voice signal, it indicates that an exposure command has been issued; and if "cancel" is recognized in a user's voice signal, it indicates that a cancel command has been issued.

[0089] In some embodiments, in response to the preparation instruction, the DR device is controlled to perform pre-exposure preparation in the current posture mode. Exemplarily, the preparation includes but is not limited to high-voltage preparation, starting the rotation of the tube 10, and the filament heating lamp.

[0090] In some embodiments, in response to an exposure instruction, the DR device is controlled to start exposure in the current posture mode. For example, if there is no other operation or instruction to cancel the exposure, the tube 10 is controlled to load high voltage to generate X-rays, and the flat panel detector 31 receives the X-rays to generate an X-ray image of the object.

[0091] In some embodiments, if a cancel command is recognized while the DR device is preparing for exposure, the device is controlled to cancel the pre-exposure preparation. For example, this may involve stopping the heating of the filament of the bulb 10 or braking the bulb 10. If a cancel command is recognized during exposure, the device is controlled to cancel the exposure. The process canceled by the cancel command is determined by the currently responded command.

[0092] The inventors have found in practice that the setting of the above-mentioned voice control instructions simplifies the user's operation and improves the user's work efficiency to a certain extent, but there are still areas for improvement. For users with less experience or who are not familiar with the operation of DR equipment, the voice control instructions may be erroneous or untimely. For example, the exposure instruction is issued before the voice control DR device is performed to perform the preparation work, or the specific sentence of the exposure instruction is forgotten after the DR device is controlled to enter the preparation work, causing the DR device to remain in the preparation stage. In order to avoid the occurrence of various errors or mistakes, the response conditions of the voice control instructions are further designed in some embodiments of the present application to further lower the threshold for using the DR device and facilitate its use by novices. Specifically:

[0093] In some embodiments, after the DR device enters a certain posture mode, if no preparation instruction is recognized, or if the DR device has not completed preparation, even if an exposure instruction is recognized, no response is made to the exposure instruction.

[0094] In some embodiments, after responding to a preparation instruction and controlling the DR device to perform pre-exposure preparations in the current body position mode, if the exposure instruction is not recognized within a preset first time period, the pre-exposure preparations are canceled. If the exposure instruction is recognized, the DR device is controlled to start exposure in the current body position mode. The above-mentioned first time period can be set according to the length of time required for the preparation of the DR device. For example, if the exposure instruction is recognized within 20 seconds after the preparation instruction is recognized, the exposure is started. If the exposure instruction is not recognized within 20 seconds, the DR device is controlled to exit the preparation. The above embodiment sets the sequence and response time between the exposure instruction and the preparation instruction to prevent the user from forgetting to start the exposure and causing the DR device to remain in the preparation stage for a long time.

[0095] In some embodiments, after controlling the DR device to perform pre-exposure preparations in the current body position mode in response to a prepare instruction, if a cancel instruction is recognized within a preset second time period, the DR device is controlled to cancel the pre-exposure preparations in the current body position mode in response to the cancel instruction. The second time period can be set based on the duration required for the DR device to perform the preparations. For example, if a cancel instruction is recognized within 10 seconds of the prepare instruction, the preparations are canceled.

[0096] In some embodiments, after controlling the DR device to initiate exposure in the current body position mode in response to an exposure instruction, if a cancel instruction is recognized within a preset third duration, the DR device is controlled to cancel the exposure in the current body position mode in response to the cancel instruction. If no cancel instruction is received, a corresponding X-ray image is generated based on the X-rays received by the flat panel detector 31 after the initiation of exposure. The third duration can be set based on the required exposure duration of the DR device.

[0097] As can be seen from the above description, in some embodiments, the response time for the cancel command is also limited. For example, the user may be allowed to cancel the preparation within a period of time after the preparation is started. When the preparation is basically completed, the cancel command will not be responded to, but the exposure command will continue to be waited for. If the exposure command does not appear, the preparation before exposure will be exited, thereby avoiding the user from mistakenly issuing a cancel command at the final stage of a process.

[0098] In some embodiments, when multiple body posture modes have a specified sequence, after the DR device is controlled to initiate exposure in the current body posture mode in response to an exposure instruction, it detects whether an X-ray image has been generated. If the DR device detects that an X-ray image has been generated in the current body posture mode, it controls the DR device to enter the next body posture mode according to the specified sequence. For example, after generating an X-ray image in the left lateral position mode for 30 seconds, the DR device is controlled to enter the next ventral-dorsal position mode. To the user, this appears to be the DR device automatically switching between body posture modes.

[0099] In the above embodiments, the corresponding voice control instructions are not responded to when certain conditions are not met. In other embodiments, the recognition function of the corresponding voice control instructions can be turned off when the corresponding conditions are not met, or even the reception of voice signals can be directly stopped. From the user's intuitive point of view, the voice control instructions issued by the user are not responded to.

[0100] In some embodiments, exposure parameters include, but are not limited to, parameters used by the DR device during pre-exposure preparation and during exposure. In some embodiments, each body position mode has preset exposure parameters. Upon entering a body position mode, the DR device first loads the preset exposure parameters for that body position mode and then recognizes the user's voice to determine whether to subsequently adjust the exposure parameters. If the exposure parameters are adjusted in response to a voice control command, the adjusted exposure parameters are saved for subsequent exposure of the same subject by the DR device in the current body position mode. For example, if a user enters information about the subject, such as type, height, and weight, and then controls the DR device to enter the left-side position mode, the DR device will automatically load the preset exposure parameters for that type of subject in the left-side position mode and wait for the user to initiate exposure. If the exposure parameters are adjusted in response to a voice control command, the adjusted exposure parameters are saved. If exposure is continued in the left-side position mode, or if the left-side position mode is re-entered without the subject changing, the previously saved exposure parameters will be used.

[0101] Exemplarily, in response to a voice control command, at least one of the tube voltage, tube current, and duration of X-ray generation of the tube 10 when exposing a photographic object to generate X-rays can be adjusted. For example, the tube voltage, tube current, and duration of X-ray generation of the tube 10 are all pre-set levels, each with a corresponding parameter value. If "kV+" is recognized in the voice signal sent by the user, the tube voltage of the tube 10 when generating X-rays is adjusted up by one level; otherwise, the tube voltage of the tube 10 when generating X-rays is adjusted down by one level. If "mA+" is recognized in the voice signal sent by the user, the tube current of the tube 10 when generating X-rays is adjusted up by one level; otherwise, the tube current of the tube 10 when generating X-rays is adjusted down by one level. If "mS+" is recognized in the voice signal sent by the user, the duration of X-ray generation of the tube 10 is adjusted up by one level; otherwise, the duration of X-ray generation of the tube 10 is adjusted down by one level.

[0102] In addition, you can also respond to voice control commands to adjust the subject's body thickness parameter. The body thickness parameter is used to characterize the subject's body thickness along the X-ray direction during exposure. Different body thicknesses have different degrees of X-ray attenuation.

[0103] In some embodiments, a specific response order relationship can be established between the voice control instructions for controlling the operation of the DR device and the voice control instructions for adjusting exposure parameters. For example, a response to the voice control instructions for adjusting exposure parameters can be set to be withheld for a period of time after receiving the exposure instruction to prevent changes in exposure parameters from affecting the exposure process. Thus, the voice control instructions herein can not only simplify the user's manual operation, but also establish a specific relationship between voice control instructions, making the operation more standardized.

[0104] In some embodiments, when the DR device is in any body position mode, it recognizes a mode selection instruction in a voice signal and, in response to the mode selection instruction, changes the current body position mode to a selected one of at least two body position modes. In other words, the user can control which body position mode the DR device enters based on voice, and this control may not follow the specified order among the multiple body position modes. For example, if the user has set three body position modes, namely, body position mode A, body position mode B, and body position mode C, with the letters of the three body position modes indicating the order among the three body position modes, and the current body position mode is body position mode A, if an X-ray image is generated in body position mode A, in some embodiments the DR device will automatically enter body position mode B. In an embodiment where the DR device is controlled by voice, if the user recognizes "enter body position mode C" in the voice signal, body position mode B will be skipped and the device will directly enter body position mode C.

[0105] In other embodiments, the mode selection instruction may also follow the specified order between multiple posture modes. For example, the user sets three posture modes, namely posture mode A, posture mode B and posture mode C. The letters of the three posture modes also represent the order between the three posture modes. The current posture mode is posture mode B. If "posture +" is recognized in the voice signal sent by the user, the DR device is controlled to jump to the next posture mode, that is, enter posture mode C; and if "posture -" is recognized in the voice signal sent by the user, the DR device is controlled to jump to the previous posture mode, that is, enter posture mode A. It should be noted that if the exposure parameters have been adjusted through voice control instructions in posture mode A, the DR device will automatically load the previously adjusted exposure parameters when entering posture mode A. In some scenarios, jumping back to the previous posture mode means that the user is not satisfied with the X-ray image obtained in the last posture mode and hopes to take the X-ray image again. In order to make voice control friendly, in some embodiments, if "retake" is recognized in the voice signal sent by the user, the DR device is also controlled to jump to the previous body posture mode to obtain the X-ray image again using the previously saved exposure parameters. Of course, after jumping to the previous body posture mode, the exposure parameters of the body posture mode can also continue to be adjusted.

[0106] In some embodiments, the voice recognition function of the DR device can be turned on or off. After starting to receive a voice signal, it detects whether a voice command to turn on the voice recognition function appears in the voice signal. If so, it begins to recognize various control commands in the voice signal. In addition, it also detects whether a voice command to turn off the voice recognition function appears in a subsequently received voice signal. If a voice command to turn off the voice recognition function appears, the voice signal is no longer recognized. In other words, the voice recognition function of the DR device is actively turned on or off by the user. In other embodiments, the DR device can also automatically turn off the voice recognition function. After detecting the presence of a voice command to turn on the voice signal, if no voice control command is recognized within a preset fourth time period, the voice recognition function is turned off. After turning off the voice recognition function, the operation of the DR device can be completed manually by the user. It can be seen that the voice control in this application does not conflict with traditional manual operation control. The user can choose to control the DR device by voice or continue to use traditional manual operation for certain steps.

[0107] The above-mentioned DR device and control method thereof can reduce the user's manual operations and improve the user's work efficiency. Moreover, in some embodiments, different voice control instructions also have a set relationship to avoid user errors in voice control.

[0108] Those skilled in the art will appreciate that all or part of the functions of the various methods in the above embodiments can be implemented by hardware or by computer program. When all or part of the functions in the above embodiments are implemented by computer program, the program can be stored in a computer-readable storage medium, and the storage medium can include: read-only memory, random access memory, disk, optical disk, hard disk, etc., and the program is executed by a computer to implement the above functions. For example, the program is stored in the memory of the device, and when the program in the memory is executed by the processor, all or part of the above functions can be implemented. In addition, when all or part of the functions in the above embodiments are implemented by computer program, the program can also be stored in a storage medium such as a server, another computer, disk, optical disk, flash disk or mobile hard disk, and saved in the memory of the local device by downloading or copying, or the system of the local device is updated. When the program in the memory is executed by the processor, all or part of the functions in the above embodiments can be implemented.

[0109] The above specific examples are used to illustrate the present invention, which are only used to help understand the present invention and are not intended to limit the present invention. For those skilled in the art, according to the concept of the present invention, the above specific embodiments can be modified.

Claims

1. A DR device, characterized in that: include: The tube is used to generate X-rays to expose the subject; Beam limiter, used to limit the irradiation field of X-rays; A flat panel detector, used to receive the X-rays generated by the tube, so that the DR device can generate an X-ray image of the object; A voice receiving device, used for receiving a voice signal sent by a user; A controller, configured to obtain one or more body position modes set by a user, wherein in any of the body position modes, the X-ray image of the photographed object generated by the DR device is used to characterize the attenuation degree of the X-ray inside the photographed object; 2. When the DR device is in any body position mode, identify the voice control instructions in the voice signal that match the current body position mode, respond to the voice control instructions, control the operation of the DR device in the current body position mode, and / or adjust the exposure parameters of the DR device in the current body position mode. The DR device according to claim 1, wherein the voice control command comprises at least one of a preparation command, an exposure command, and a cancel command; The step of responding to the voice control instruction and controlling the operation of the DR device in the current posture mode includes: In response to the preparation instruction, control the DR device to perform pre-exposure preparation in the current body position mode; In response to the exposure instruction, control the DR device to start exposure in the current body position mode to generate an X-ray image; In response to the cancel instruction, the DR device is controlled to cancel the preparation work before exposure or cancel the exposure in the current body position mode.

2. The DR device according to claim 2, characterized in that: After responding to the preparation instruction to control the DR device to perform pre-exposure preparation work in the current body position mode, identifying the voice control instruction matching the current body position mode in the voice signal, responding to the voice control instruction, and controlling the operation of the DR device in the current body position mode, includes: Identify whether the exposure instruction appears in the voice signal within a preset first time period, if the exposure instruction does not appear, cancel the preparation work before exposure, if the exposure instruction appears, respond to the exposure instruction and control the DR device to start exposure in the current body position mode; and / or It is identified whether the cancel instruction appears in the voice signal within a preset second time period, and if the cancel instruction appears, responding to the cancel instruction, controlling the DR device to cancel the preparation work before exposure in the current body position mode.

3. The DR device according to claim 2 or 3, characterized in that: After responding to the exposure instruction and controlling the DR device to start exposure in the current body position mode, identifying the voice control instruction matching the current body position mode in the voice signal, responding to the voice control instruction, and controlling the operation of the DR device in the current body position mode, includes: Identify whether the voice signal contains the cancellation instruction within a preset third time period; if so, respond to the cancellation instruction and control the DR device to cancel exposure in the current body position mode; if not, generate a corresponding X-ray image based on the X-rays received by the flat-panel detector after starting the exposure.

4. The DR device according to claim 2 or 4, characterized in that: After responding to the exposure instruction and controlling the DR device to start exposure in the current body position mode, the controller is further used to:

6. After detecting that the DR device generates an X-ray image in the current posture mode, control the DR device to enter the next posture mode in a specified order. The DR device according to claim 1, wherein when the acquired user-set body position modes include at least two, the controller is further configured to: When the DR device is in any body position mode, it recognizes a mode selection instruction in the voice signal, and changes the current body position mode to a body position mode selected from at least two body position modes in response to the mode selection instruction.

5. The DR device according to claim 6, characterized in that: The step of changing the current body position mode to a body position mode selected from at least two body position modes in response to the mode selection instruction comprises: In response to the mode selection instruction, control the DR device to enter the next position mode according to a specified sequence; or 8. In response to the mode selection instruction, control the DR device to enter the previous posture mode in a specified order. The DR device according to any one of claims 1 to 7, characterized in that, in response to the voice control instruction, adjusting the exposure parameters of the DR device in the current posture mode comprises: In response to the voice control instruction, at least one of the tube voltage of the tube when exposing the subject to generate X-rays, the tube current when generating X-rays, and the duration of generating X-rays is adjusted, and the body thickness parameter of the subject is adjusted, wherein the body thickness parameter is used to characterize the body thickness of the subject along the X-ray direction when the subject is exposed.

6. The DR device according to claim 8, characterized in that After adjusting the exposure parameters of the DR device in the current posture mode in response to the voice control instruction, the controller is further used to: The exposure parameters adjusted in response to the voice control instruction are saved for use by the DR device when exposing the same subject again in the current posture mode.

7. The DR device according to claim 1, wherein: The controller is also used for: Identify a beam limiter control instruction in the voice signal, respond to the beam limiter control instruction to control the size of the irradiation field limited by the beam limiter, and / or control the light source in the beam limiter to turn on or off.

8. The DR device according to claim 1, wherein: Also included is a floating bed for carrying the photographed object, and a locking structure for locking the floating bed; 12. The controller is further used to identify a locking control instruction in the voice signal, and in response to the locking control instruction, control the locking structure to lock or unlock the floating bed. The DR device according to claim 1, characterized in that The controller is also used to detect whether a voice command for starting a voice recognition function appears in the voice signal, and if so, start recognizing the voice control command in the voice signal.

9. The DR device according to claim 12, wherein after starting to recognize the voice control instruction in the voice signal, the controller is further configured to: identifying whether the voice control instruction appears in the voice signal within a preset fourth time period, and if so, continuing to enable the voice recognition function, otherwise, turning off the voice recognition function; and / or 14. Detect whether a voice command for shutting down the voice recognition function appears in the voice signal, and if so, shut down the voice recognition function. The DR device according to claim 1, wherein the step of obtaining one or more body position modes set by the user comprises: Based on the operation input by the user, one or more body posture modes set by the user are obtained; and / or The body position setting instruction appearing in the voice signal is identified, and one or more body position modes set by the user are acquired in response to the body position setting instruction.

10. A method for controlling a DR device, characterized in that: include: Receiving a voice signal from a user; Acquire one or more body position modes set by a user, wherein in any of the body position modes, the X-ray image of the photographed object generated by the DR device is used to characterize the attenuation degree of the X-ray inside the photographed object; When the DR device is in any body position mode, it identifies the voice control instructions in the voice signal that match the current body position mode, responds to the voice control instructions, controls the operation of the DR device in the current body position mode, and / or adjusts the exposure parameters of the DR device in the current body position mode.

11. The control method according to claim 15, characterized in that: The voice control instruction includes at least one of a preparation instruction, an exposure instruction, and a cancel instruction; The step of responding to the voice control instruction and controlling the operation of the DR device in the current posture mode includes: In response to the preparation instruction, control the DR device to perform pre-exposure preparation in the current body position mode; In response to the exposure instruction, control the DR device to start exposure in the current body position mode to generate an X-ray image; In response to the cancel instruction, the DR device is controlled to cancel the preparation work before exposure or cancel the exposure in the current body position mode.

12. The control method according to claim 16, characterized in that: After responding to the preparation instruction to control the DR device to perform pre-exposure preparation work in the current body position mode, identifying the voice control instruction matching the current body position mode in the voice signal, responding to the voice control instruction, and controlling the operation of the DR device in the current body position mode, includes: Identify whether the exposure instruction appears in the voice signal within a preset first time period, if the exposure instruction does not appear, cancel the preparation work before exposure, if the exposure instruction appears, respond to the exposure instruction and control the DR device to start exposure in the current body position mode; and / or It is identified whether the cancel instruction appears in the voice signal within a preset second time period, and if the cancel instruction appears, responding to the cancel instruction, controlling the DR device to cancel the preparation work before exposure in the current body position mode.

13. The control method according to claim 16 or 17, characterized in that: After responding to the exposure instruction and controlling the DR device to start exposure in the current body position mode, identifying the voice control instruction matching the current body position mode in the voice signal, responding to the voice control instruction, and controlling the operation of the DR device in the current body position mode, includes:

19. Identify whether the voice signal contains a cancel instruction within a preset third time period; if so, respond to the cancel instruction and control the DR device to cancel exposure in the current body position mode; if not, generate a corresponding X-ray image based on the X-rays received by the DR device after starting the exposure. The control method according to claim 16 or 18, characterized in that After responding to the exposure instruction and controlling the DR device to start exposure in the current body position mode, the method further includes:

20. After detecting that the DR device generates an X-ray image in the current posture mode, control the DR device to enter the next posture mode in a specified order. The control method according to claim 15, characterized in that when the acquired user-set body posture modes include at least two, the method further comprises: When the DR device is in any body position mode, it recognizes a mode selection instruction in the voice signal, and switches the current body position mode to a body position mode selected from at least two body position modes in response to the mode selection instruction.

14. The control method according to claim 20, wherein the step of changing the current body position mode to a body position mode selected from at least two body position modes in response to the mode selection instruction comprises: In response to the mode selection instruction, control the DR device to enter the next position mode according to a specified sequence; or 22. In response to the mode selection instruction, control the DR device to enter the previous body posture mode in a specified order. The control method according to any one of claims 15 to 21, characterized in that the DR device includes a tube for generating X-rays, and in response to the voice control instruction, adjusting the exposure parameters of the DR device in the current body posture mode comprises: In response to the voice control instruction, at least one of the tube voltage of the tube when exposing the subject to generate X-rays, the tube current when generating X-rays, and the duration of generating X-rays is adjusted, and the body thickness parameter of the subject is adjusted, wherein the body thickness parameter is used to characterize the body thickness of the subject along the X-ray direction when the subject is exposed.

15. The control method according to claim 22, characterized in that: After adjusting the exposure parameters of the DR device in the current posture mode in response to the voice control instruction, the method further includes: The exposure parameters adjusted in response to the voice control instruction are saved for use by the DR device when exposing the same subject again in the current posture mode.

16. The control method according to claim 15, characterized in that: The DR device includes a beam limiter for limiting an irradiation field of X-rays, and the method further includes: Identify a beam limiter control instruction in the voice signal, respond to the beam limiter control instruction to control the size of the irradiation field limited by the beam limiter, and / or control the light source in the beam limiter to turn on or off.

17. The control method according to claim 15, characterized in that: The DR device includes a floating bed for carrying a photographed object, and a locking structure for locking the floating bed; The method further includes: identifying a locking control instruction in the voice signal, and controlling the locking structure to lock or unlock the floating bed in response to the locking control instruction.

18. The control method according to claim 15, characterized in that: The method further comprises: It is detected whether a voice command for starting a voice recognition function appears in the voice signal, and if so, the voice control command in the voice signal is started to be recognized.

19. The control method according to claim 26, characterized in that: After starting to recognize the voice control instruction in the voice signal, the method further includes: identifying whether the voice control instruction appears in the voice signal within a preset fourth time period, and if so, continuing to enable the voice recognition function, otherwise, turning off the voice recognition function; and / or It is detected whether a voice command for shutting down the voice recognition function appears in the voice signal, and if so, the voice recognition function is shut down.

20. The control method according to claim 15, characterized in that: The obtaining of one or more body position modes set by the user comprises: Based on the operation input by the user, obtaining one or more body posture modes set by the user; and / or The body position setting instruction appearing in the voice signal is identified, and one or more body position modes set by the user are acquired in response to the body position setting instruction.

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