JP7735838B2 - Radiography device and program - Google Patents

Description

The present invention relates to a radiographic imaging device and a program.

Conventionally, radiation imaging systems use radiographic devices that communicate wirelessly as a method for irradiating a subject with radiation and detecting the radiation that has passed through the subject to obtain a radiographic image.

In such a radiation imaging system, pre-imaging preparation processing in the radiation imaging device begins when an imaging order is selected on the console. When capturing video, the pre-imaging preparation processing time is longer than when capturing still images. For this reason, when capturing video, one known invention reduces user waiting time by transitioning the radiation imaging device to a preparation state for the next imaging session rather than transitioning to a standby state after the video capture is completed.

In this regard, Patent Document 1 describes that in a radiography system using a radiography device equipped with a wired communication unit and a wireless communication unit, when the wired communication is disconnected and the device is not in video recording mode and video recording is set as the next recording, control is performed to set the device to a video standby mode, which is a state in which video recording is ready, and when video recording is not set as the next recording, a power-saving standby mode, which is a standby state, is set.
The video standby state (preparation state) does not require a waiting time for video shooting and does not cause stress to the user, but consumes more power than the power-saving standby state (standby state).

JP 2019-154785 A

However, in the invention of Patent Document 1, the timing for setting the radiographic imaging device to the ready state is only when wired communication is disconnected, the device is not in video imaging mode, and video imaging is set as the next imaging mode. This may not be an appropriate timing for transitioning the radiographic imaging device to the ready state from the perspective of reducing waiting time and saving power.

The present invention was made in consideration of the above-mentioned problems, and aims to provide a radiographic imaging device and program that enables more optimal setting of the timing for transitioning the radiographic imaging device to a ready state.

In order to solve the above problem, the radiation imaging apparatus of the present invention as set forth in claim 1 comprises:
A radiographic apparatus for generating dynamic image data,
a first setting unit that can set a timing for starting a transition to a preparation state for the next radiography in the radiography apparatus after the dynamic radiography for generating the dynamic image data is stopped to a timing different from a timing at which a next radiography order is selected ;
The timing different from the time of selecting the next imaging order includes the timing when the radiation imaging device is in a standby state that is more power-saving than the ready state, and after completing transmission of preview image data, which is dynamic image data extracted from the captured frame image data at a predetermined frame rate, starts transmitting main image data, which is dynamic image data of all the captured frame image data .

The invention described in claim 2 is the radiation imaging apparatus described in claim 1,
The first setting unit selects and sets a timing that satisfies a predetermined condition from among a plurality of candidates as the timing to start transitioning to a preparation state for the next imaging in the radiation imaging apparatus.

The invention described in claim 3 is the radiation imaging apparatus described in claim 1 or 2,
The first setting unit sets the radiation imaging apparatus to the standby state while transmitting the preview image data.

The invention described in claim 4 is a radiation imaging apparatus according to any one of claims 1 to 3,
Equipped with a battery,
When the remaining charge of the battery is equal to or greater than a predetermined value, the first setting unit sets the timing at which the radiation imaging device starts to transition to a preparation state for the next imaging to the timing at which the dynamic imaging is stopped.

The invention described in claim 5 is a radiation imaging apparatus according to any one of claims 1 to 4,
Equipped with an external battery,
When the capacity of the battery is equal to or greater than a predetermined value, the first setting unit sets the timing at which the radiation imaging device starts to transition to a preparation state for the next imaging to the timing at which the dynamic imaging is stopped.

The invention described in claim 6 is a radiation imaging apparatus according to any one of claims 1 to 5,
The first setting unit disables setting the radiation imaging device to a power-saving standby state rather than the preparation state at the time the dynamic imaging is stopped when an imaging error occurs in the dynamic image data.

The invention described in claim 7 is a radiation imaging apparatus according to any one of claims 1 to 6,
When an imaging error occurs in the dynamic image data, the first setting unit sets the timing at which the radiation imaging device starts transitioning to a preparation state for the next imaging to the timing at which the dynamic imaging is stopped.

The invention described in claim 8 is a radiographic apparatus according to any one of claims 1 to 7,
The imaging device further includes a second setting unit that sets a first standby time, which is a standby time that saves power compared to the preparation state after the dynamic imaging is stopped, for each imaging target region.

The invention described in claim 9 is the radiation imaging apparatus described in claim 8,
a first learning unit that performs machine learning to learn a confirmation time for a dynamic image according to a body part to be imaged;
The second setting unit sets the first waiting time based on a learning result by the first learning unit.

The invention described in claim 10 is a radiographic apparatus according to any one of claims 1 to 9,
The imaging device further includes a third setting unit that sets a second standby time, which is a standby time that saves power compared to the preparation state after the dynamic imaging is stopped, for each imaging technician.

The invention described in claim 11 is the radiation imaging apparatus described in claim 10,
a second learning unit that performs machine learning to learn a time required for checking dynamic images according to a cameraman;
The third setting unit sets the second waiting time based on a learning result by the second learning unit.

Furthermore, the present invention provides a radiation imaging apparatus according to any one of claims 1 to 11, wherein
The radiography device further includes a fourth setting unit that sets a third standby time, which is a standby time that is more power-efficient than the preparation time after the dynamic radiography is stopped, for each facility in which the radiography device is installed.

The invention described in claim 13 is the radiation imaging apparatus described in claim 12,
a third learning unit that performs machine learning to learn the required time in the facility's workflow;
The fourth setting unit sets the third waiting time based on a learning result by the third learning unit.

The program of the invention according to claim 14 comprises:
A computer of a radiographic imaging device that generates dynamic image data,
a setting unit that can set a timing for starting a transition to a preparation state for the next radiography in the radiography apparatus after the dynamic radiography for generating the dynamic image data has been stopped to a timing different from that at the time of selecting the next radiography order ;
The timing different from the time of selecting the next imaging order includes the timing when the radiation imaging device is in a standby state that is more power-saving than the ready state, and after completing transmission of preview image data, which is dynamic image data extracted from the captured frame image data at a predetermined frame rate, starts transmitting main image data, which is dynamic image data of all the captured frame image data .

This invention makes it possible to more appropriately set the timing for transitioning the radiographic imaging device to the ready state.

1 is a block diagram illustrating an example of a radiation imaging system according to a first embodiment. FIG. 1 is a diagram illustrating an example of a medical cart. FIG. 2 is a block diagram showing a specific configuration of a radiation irradiation device included in the radiation imaging system of FIG. 1 . FIG. 2 is a block diagram showing a specific configuration of a radiation imaging apparatus included in the radiation imaging system of FIG. 1 . 2 is a block diagram showing a specific configuration of a control terminal included in the radiation imaging system of FIG. 1 . 10 is a flowchart illustrating a conventional photography control process. 10 is a flowchart illustrating a conventional photography control process. 10A and 10B are diagrams showing the passage of time during execution of a conventional shooting control process. 5 is a flowchart showing a first photographing control process according to the first embodiment. 5 is a flowchart showing a first photographing control process according to the first embodiment. 6A to 6C are diagrams illustrating the passage of time during execution of a first shooting control process according to the first embodiment. 10 is a flowchart showing a second photographing control process according to a modified example of the first embodiment. 10 is a flowchart showing a second photographing control process according to a modified example of the first embodiment. 10A and 10B are diagrams illustrating the passage of time during execution of a second shooting control process according to a modified example of the first embodiment. 10 is a flowchart showing a conventional photographing control process when a photograph is not photographed. 10 is a flowchart showing a conventional photographing control process when a photograph is not photographed. 10A and 10B are diagrams illustrating the passage of time during execution of a conventional photographing control process when a photograph is not photographed. 10 is a flowchart showing a third photographing control process according to the second embodiment. 10 is a flowchart showing a third photographing control process according to the second embodiment. 10A and 10B are diagrams illustrating the passage of time during execution of a third shooting control process according to the second embodiment. 10A and 10B are diagrams illustrating the passage of time during execution of a third shooting control process according to the second embodiment. 13 is a flowchart showing a fourth photographing control process according to the third embodiment. 13 is a flowchart showing a fourth photographing control process according to the third embodiment. 13 is a flowchart showing a fifth shooting control process according to the third embodiment. 13 is a flowchart showing a fifth shooting control process according to the third embodiment.

Embodiments of the present invention will be described below with reference to the drawings. However, the technical scope of the present invention is not limited to the examples shown in the drawings.

First Embodiment
<1. Configuration of Radiography System>
First, an outline of the radiation imaging system of this embodiment (hereinafter referred to as imaging system 100) will be described.

As shown in Figure 1, the imaging system 100 is composed of the medical cart 1A shown in Figure 2 and one or more radiographic imaging devices (hereinafter referred to as imaging device 2).

The medical cart 1A is configured to be mobile and includes one or more radiation irradiation devices (hereinafter referred to as irradiation devices 1), a communication cable 3, a console 4, a control panel 5, a storage unit 6, a charging unit 7, an access point 8, and wheels 9.

(1-1. Radiation irradiation device)
The irradiation device 1 generates radiation (e.g., X-rays) and irradiates the radiation onto the subject and the imaging device 2 placed behind it, and is configured with a radiation control device (hereinafter referred to as the control device 1a) and a tube 1b.

Next, we will explain the details of the control device 1a provided in the irradiation device 1. Figure 3 is a block diagram showing the specific configuration of the control device 1a.

As shown in FIG. 3, the control device 1a includes an irradiation side control unit 11, a high voltage generating unit 12, a storage unit 13, an irradiation side interface unit (hereinafter referred to as irradiation side IF unit 14), and the like.
Furthermore, each of the components 11 to 14 of the control device 1a can receive power from a power cable or built-in power source (not shown).

The irradiation side control unit 11 includes a CPU (Central Processing Unit), a RAM (Random Access Memory), etc., and is configured to comprehensively control the operations of the units 12 to 14 of the irradiation device 1.
The irradiation-side control unit 11 also includes an oscillator (hereinafter referred to as the irradiation-side oscillator 11a). The irradiation-side oscillator 11a can be configured with a quartz oscillator, a ceramic oscillator, or the like that generates a clock with a predetermined cycle when the power is turned on.
The irradiation-side control unit 11 has a function of periodically generating timing information using a clock generated by the irradiation-side oscillator 11a. The generated timing information includes, for example, a timing signal. The timing signal refers to a pulse-like signal or the like that is output each time one or more clocks are generated.
Furthermore, each of the components 11 to 14 of the irradiation device 1 operates based on a clock generated by the irradiation-side oscillator 11a.

Upon receiving a timing signal from the irradiation side control unit 11, the high voltage generation unit 12 applies a voltage to the tube 1b according to preset imaging conditions (for example, imaging mode (still image imaging, dynamic imaging), imaging target area, conditions related to the subject such as physique, and conditions related to radiation irradiation such as tube voltage, tube current, irradiation time, current-time product).
The shooting mode included in the shooting conditions is information about the shooting method, such as still image shooting, dynamic image shooting, etc. The shooting mode of the shooting system 100 can be set in advance, and the high voltage generating unit 12 performs an operation appropriate to the shooting mode according to the shooting mode setting.
Here, dynamic photography includes video photography, but does not include taking still images while displaying the video. Also, a series of images obtained by dynamic photography is called a dynamic image. Dynamic images include video, but do not include images obtained by taking still images while displaying the video.
When dynamic imaging is included in the imaging conditions, a pulsed voltage is repeatedly applied at predetermined intervals each time a timing signal is received.
When a voltage is applied to the tube 1b from the high voltage generating unit 12, the tube 1b generates radiation of a dose corresponding to the applied voltage. Specifically, when a pulsed voltage is applied from the high voltage generating unit 12, pulsed radiation is emitted.

The storage unit 13 is configured by a HDD (Hard Disk Drive), a semiconductor memory, etc., and stores various processing programs, as well as parameters, files, etc. required for executing the processing programs.
The storage unit 13 is also capable of storing various data (for example, timing information) generated during the process performed by the irradiation-side control unit 11 .

The irradiation side IF unit 14 can be connected to an external interface (IF) and is configured to be able to transmit and receive various information (signals and data).
Specifically, it can be configured with a connector into which the communication cable 3 is inserted.

The irradiation-side control unit 11 of the irradiation device 1 configured as above operates as follows in accordance with a program stored in the storage unit 13 .
For example, the irradiation side control unit 11 sets various imaging conditions (conditions related to the subject, such as imaging mode (still image imaging, dynamic imaging), imaging target area, and physique, and conditions related to radiation irradiation, such as tube voltage, tube current, irradiation time, current-time product, and frame rate).
Furthermore, upon receiving the exposure permission notification from the imaging device 2, the irradiation side control unit 11 controls the high voltage generating unit 12 to start exposure (irradiation of radiation).
When dynamic imaging is included in the imaging conditions, exposure is performed at a cycle according to the frame rate.

(1-2. Radiography Device)
Next, a description will be given of a specific configuration of the image capturing device 2 included in the image capturing system 100. FIG.

The imaging device 2 according to this embodiment includes a housing (not shown), as well as an imaging side control unit 21, a radiation detection unit 22, a readout unit 23, a memory unit 24, a communication unit 25, a battery 26, etc., as shown in FIG. 4 .
Furthermore, each of the components 21 to 25 of the photographing device 2 can receive power from a power cable or a battery 26 (not shown).

The photographing side control unit 21 is configured to comprehensively control the operations of the units 22 to 26 of the photographing device 2 using a CPU, RAM, etc.
The imaging-side control unit 21 also includes an oscillator (hereinafter referred to as imaging-side oscillator 21a). The imaging-side oscillator 21a can be configured with a quartz oscillator, a ceramic oscillator, or the like that generates a clock with a predetermined cycle when the power is turned on.
The imaging-side control unit 21 has a function of periodically generating timing information using a clock generated by the imaging-side oscillator 21 a. The format of the timing information generated here is preferably the same as that of the timing information generated by the irradiation device 1.
Furthermore, each of the components 21 to 26 of the photographing device 2 operates based on a clock generated by the photographing-side oscillator 21a.

Furthermore, the imaging side control unit 21 can set the timing for putting the imaging device 2 (radiography device) into a preparation state for the next imaging after the dynamic imaging that generates dynamic image data has stopped to a timing different from the time when the next imaging order is selected. Here, the imaging side control unit 21 functions as a first setting unit.

The radiation detection unit 22 may be any device having a substrate on which a plurality of pixels are arranged two-dimensionally, each pixel having a radiation detection element that directly or indirectly generates an electric charge corresponding to the dose of radiation received from the outside, and a switch element that is provided between each radiation detection element and wiring and can be switched between an on state that allows current to flow between the radiation detection element and the wiring and an off state that prevents current from flowing, and any conventionally known device may be used.
That is, the imaging device 2 may be a so-called indirect type that is equipped with a scintillator and detects the light emitted by the scintillator when exposed to radiation, or may be a so-called direct type that detects radiation directly without going through a scintillator or the like.

The readout unit 23 may be configured to read signal values corresponding to the amount of charge accumulated in each of the multiple radiation detection elements (generated by the radiation detection elements) and generate image data for the radiation image based on each signal value, and any conventionally known readout unit may be used.

The storage unit 24 is configured with a HDD, a semiconductor memory, etc., and stores various processing programs including various image processing programs, parameters and files required for executing the programs, etc.
The storage unit 24 is also capable of storing various data (for example, timing information) generated during the processing performed by the imaging control unit 21 .

The communication unit 25 includes an image capturing side IF (interface) unit 251 and a wireless communication unit 252 .
The imaging side IF unit 251 can be connected to an external IF and is configured to be able to transmit and receive various information (signals and data).
Specifically, it can be configured with a connector into which the communication cable 3 is inserted.
The wireless communication unit 252 controls wireless communication via a wireless LAN (Local Area Network) or the like.

The battery 26 is external to the imaging device 2, i.e., it is attached integrally to the imaging device 2 and is configured to be removable, and supplies power to the imaging device 2.

The photographing-side control unit 21 of the photographing device 2 configured as above operates as follows in accordance with the program stored in the storage unit 24 .
For example, the photographing-side control unit 21 has a function of switching the state of the photographing device 2 to one of the "initialization state,""storagestate," and "reading and transfer state."

The "initialized state" is a state in which an ON voltage is applied to each switch element and the charge generated by the radiation detection element is not accumulated in each pixel (the charge is released to the signal line).
The "accumulation state" is a state in which an off voltage is applied to each switch element, and charges generated by the radiation detection element can be accumulated in the pixel (charges are not released to the signal line).
The "read and transfer state" is a state in which an on voltage is applied to each switch element, the readout section 23 is driven, and a signal value based on the charge that has flowed in can be read out.

(1-3. Console)
The console 4 is capable of setting imaging conditions (imaging mode (still image capture, dynamic image capture), tube voltage, tube current and irradiation time or current-time product (mAs value), imaging target area, imaging direction, etc.) for at least one of the control device 1a and the imaging device 2 based on imaging orders obtained from other systems such as a Radiology Information System (RIS) or a Picture Archiving and Communication System (PACS) or on operations performed on the operation panel 5 by a user (e.g., a radiologist).
In addition, the console 4 is capable of acquiring image data of the radiation image generated by the imaging device 2, storing the image data within itself, or transmitting the image data to other devices (PACS, dynamic analysis device, etc.).

Next, the console 4 will be described in detail.
FIG. 5 is a block diagram showing the functional configuration of the console 4.

As shown in Figure 5, the console 4 is configured with a control unit 41, a memory unit 42, a communication unit 43, a display unit 44, and an operation unit 45, and each unit 41 to 45 is electrically connected via a bus or the like.

The control unit 41 is composed of a CPU, RAM, etc., and provides centralized control of the operation of each part of the console 4.

The storage unit 42 is configured by a non-volatile memory, a hard disk, etc., and stores various programs executed by the CPU, parameters required for executing the programs, etc.
The storage unit 42 is also capable of storing image data of radiographic images acquired from other devices (such as the imaging device 2).
The storage unit 42 also stores imaging order information transmitted from the RIS or the like.

The communication unit 43 is composed of a communication module and the like.
The communication unit 43 transmits and receives various signals and various data to and from other devices (such as the irradiation device 1 and the imaging device 2) connected by wire or wirelessly via a communication network.

The display unit 44 is composed of, for example, an LCD (Liquid Crystal Display), a CRT (Cathode Ray Tube), etc. The display unit 44 displays radiographic images and the like in response to image signals received from the control unit 41.

The operation unit 45 includes a keyboard (cursor keys, numeric input keys, various function keys, etc.), a pointing device (mouse, etc.), a touch panel laminated on the surface of the display unit 44, etc. The operation unit 45 outputs control signals to the control unit 41 in response to operations performed by the user.

(1-4. Other)
The communication cable 3 is electrically connected to the photographing device 2 stored in the storage section 6. The battery 26 of the photographing device 2 is charged via the communication cable 3.

The operation panel 5 includes an exposure switch 5a connected to the main body of the operation panel 5 by wire.
When the exposure switch 5a is pressed, the control unit 41 of the console 4 transmits an imaging start signal to the control device 1a. When the exposure switch 5a is released, the control unit 41 of the console 4 transmits an imaging stop signal to the control device 1a.

The storage section 6 is configured to be able to store the photographing device 2 therein.
The storage unit 6 also has an external IF that is connected to the imaging-side IF unit 251 when the imaging device 2 is stored. Specifically, the tip of the communication cable 3 is attached to a location inside the storage unit 6 that faces the imaging-side IF unit 251.

The charging section 7 is for charging the battery 26 of the photographing device 2 .
The charging unit 7 may be charged by receiving power from an external power source (e.g., a hospital outlet), by receiving power from a power source provided in the medical cart 1A, or by using its own power source.

The access point 8 communicates wirelessly with the image capture device 2 using a wireless LAN or the like.

The imaging system 100 of this embodiment configured as described above is capable of imaging a subject by irradiating radiation from the irradiation device 1 to the subject positioned between the irradiation device 1 and the imaging device 2.
Furthermore, the imaging system 100 according to this embodiment is capable of capturing moving images (hereinafter referred to as dynamic imaging). That is, based on a single imaging operation (pressing the exposure switch 5a), the irradiation device 1 generates pulsed radiation of a preset duration multiple times at regular intervals, and the imaging device 2 generates multiple frame images that constitute a moving image.

This imaging system 100 can also be configured to communicate with other systems such as RIS and PACS, as well as with analytical devices.

2. Operation of the Radiography System
Next, a conventional photographing control process will be described.
The photographing control process is a process performed when photographing of the set number of frame images, which is the planned number of images to be photographed set in the photographing order information, is completed.
6A and 6B show a flowchart of a conventional imaging control process. Also, Fig. 7 shows the passage of time during execution of the conventional imaging control process. In Figs. 6A, 6B, and 7, the operation of the irradiation device 1 is omitted.

In the conventional imaging control process, first, when the control unit 41 of the console 4 receives a selection of an imaging order including dynamic imaging via the operation unit 45 by the user or a press of the imaging start button for dynamic imaging, the control unit 41 transmits the imaging conditions included in the imaging order information to the irradiation device 1 and the imaging device 2 (step S1). The imaging device 2 is in a sleep state until it receives the imaging conditions. The sleep state is a state in which power is supplied only to necessary functional units such as the communication unit 25, and imaging cannot be performed.
Next, when the imaging side control unit 21 of the imaging device 2 receives the imaging conditions from the console 4, it starts preparation for imaging (step S2).
Next, when the preparation for imaging is completed, the imaging-side control unit 21 transmits an imaging preparation completion signal indicating that the preparation for imaging is completed to the console 4 (step S3). The state in which the imaging preparation is completed in the imaging device 2 (preparation state) is a state in which images are read out periodically, for example, with the same power consumption and at the same frame rate as in the dynamic imaging state (i.e., the time taken to acquire each frame is the same as in the dynamic imaging state).

When the control unit 41 receives the image capture preparation completion signal from the image capture device 2, it displays on the display unit 44 that image capture is possible (step S4).
Next, the control unit 41 determines whether the user has pressed the exposure switch 5a (step S5).
If the exposure switch 5a is not pressed (step S5; NO), the control unit 41 returns the process to step S5, that is, waits until the exposure switch 5a is pressed.

When the exposure switch 5a is pressed (step S5; YES), the control unit 41 transmits an imaging instruction signal to the imaging device 2 via the control device 1a of the irradiation device 1 (step S6).
Upon receiving the imaging instruction signal, the irradiation device 1 and the imaging device 2 start imaging processing. In this imaging processing, the imaging side control unit 21 repeatedly executes the "storage state" and the "reading and transfer state" to generate multiple frame image data, and transmits preview image data, which is dynamic image data extracted from the multiple frame image data at a predetermined frame rate, to the console 4 (step S7).
Next, the control unit 41 sequentially displays preview images based on the received preview image data on the display unit 44 (step S8).
Next, the control unit 41 determines whether or not the set number of frame images have been captured and the exposure switch 5a has been opened (step S9).
If the exposure switch 5a is not released (step S9; NO), the control unit 41 returns the process to step S9, that is, while displaying the preview image, waits until the exposure switch 5a is released.

When the set number of frame images have been captured and the exposure switch 5a has been opened (step S9; YES), the control unit 41 sends a capture stop signal to the imaging device 2 via the control device 1a of the irradiation device 1 (step S10).
When the irradiation device 1 and the photographing device 2 receive the photographing stop signal, they stop the photographing process. Then, the photographing side control unit 21 transitions the photographing device 2 to a standby state (step S11). The standby state is a more power-efficient state than the preparation state. Specifically, unlike the preparation state, image reading is not performed, and preparation for photographing can be performed from the standby state, and the preparation state can transition to a state where photographing is possible.
Next, the photographing-side control unit 21 determines whether the transmission of the preview image data is complete (step S12).
If the transmission of the preview image data is not complete (step S12; NO), the control unit 41 returns the process to step S12 and continues transmitting the preview image data.

When the transmission of the preview image data is completed (step S12; YES), the shooting side control unit 21 transmits dynamic image data (main image data) of all frame image data generated in the shooting process to the console 4 (step S13).
Next, the photographing side control unit 21 determines whether or not the photographing conditions included in the next photographing order information have been received (step S14).
If the photographing conditions have not been received (step S14; NO), the photographing-side control unit 21 shifts the process to step S14. That is, the photographing-side control unit 21 remains in a standby state and waits until the next photographing conditions are received.

Next, the control unit 41 receives the main image data from the photographing device 2 (step S15).
Next, the control unit 41 determines whether reception of the image data has been completed (step S16).
If reception of the main image data has not been completed (step S16; NO), the control unit 41 returns the process to step S16, that is, waits until reception of the main image data has been completed.

When reception of the main image data is completed (step S16; YES), the control unit 41 displays the main image based on the received main image data on the display unit 44 (step S17).
Next, the control unit 41 determines whether the selection of the next photographing order by the user via the operation unit 45 has been accepted (step S18).
If the selection of the next imaging order has not been received within a predetermined time (step S18; NO), the control unit 41 ends this process. The predetermined time can be set arbitrarily.

If the selection of the next imaging order has been accepted (step S18; YES), the control unit 41 shifts the process to step S1.
In step S1, the control unit 41 transmits the imaging conditions included in the next imaging order information to the irradiation device 1 and the imaging device 2. When the imaging-side control unit 21 receives the imaging conditions (step S14; YES), the imaging-side control unit 21 shifts the process to step S2 and starts preparation for imaging. Thereafter, in the same manner as above, the imaging-side control unit 21 performs step S3, and the control unit 41 performs step S4.

In the conventional imaging control process described above, as shown in FIG. 7, the time from when the set number of frame images are captured and the exposure switch 5a is released until the preview image is displayed on the console 4 is, for example, 23 seconds. The time from when the console 4 starts receiving the actual image data until it is completed is, for example, 29 seconds. The time from when the imaging device 2 subsequently starts preparing for imaging until it is completed is, for example, 26 seconds. The sum of these times, that is, the user's waiting time from when the set number of frame images are captured and the exposure switch 5a is released to stop imaging until the exposure switch 5a can be pressed to start the next imaging, is at least 78 seconds.

Next, the first photography control process of the first embodiment performed by the photography system 100 will be described.
8A and 8B show a flowchart of the first imaging control process of the first embodiment. Also, Fig. 9 shows the passage of time during execution of the first imaging control process of the first embodiment. The operation of the irradiation device 1 is omitted in Figs. 8A, 8B, and 9.

In the first imaging control process of the first embodiment, the control unit 41 of the console 4 and the imaging side control unit 21 of the imaging device 2 perform steps S1 to S13 similar to the conventional imaging control process.
After performing step S13, the photographing-side control unit 21 proceeds to step S2 to start preparation for photographing. That is, the photographing-side control unit 21 sets the photographing device 2 to a power-saving standby state from the preparation state while transmitting preview image data, which is dynamic image data extracted from the photographed frame image data at a predetermined frame rate, and sets the photographing device 2 to the preparation state while transmitting all the photographed frame image data dynamic image data (main image data).
Thereafter, similarly to the conventional photographing control process, the photographing control section 21 carries out step S3.

Next, the control unit 41 executes steps S15 to S18 similar to the conventional photographing control process.
When the selection of the next radiography order is accepted (step S18; YES), the control unit 41 transmits the radiography conditions included in the next radiography order information to the irradiation device 1 and the radiography device 2 (step S19a), and the process proceeds to step S4. As shown in Fig. 9, the control unit 41 has already received the radiography preparation completion signal from the radiography device 2 at this point, and therefore, in step S4, displays on the display unit 44 that radiography is possible.

9, in the first imaging control process of the first embodiment, similarly to the conventional imaging control process, the time from when the set number of frame images are captured and the exposure switch 5a is opened until the display of the preview image is completed on the console 4 is set to, for example, 23 seconds. Also, the time from when the console 4 starts receiving the main image data until it is completed is set to, for example, 29 seconds. Also, the time from when the imaging device 2 starts preparing for imaging until it completes the preparation is set to, for example, 26 seconds.
9, in the first imaging control process of the first embodiment, the reception of the main image data at the console 4 and the preparation for imaging at the imaging device 2 are carried out simultaneously. Therefore, the user's waiting time, which is the time from when the set number of frame images have been captured and the exposure switch 5a has been opened to stop imaging until the exposure switch 5a can be pressed to start the next imaging, is at least 52 seconds. In this way, the user's waiting time can be shortened compared to the conventional imaging control process.

(Modification)
Next, a modification of the first embodiment will be described.
The following description will focus on the differences from the first embodiment. The configuration of the imaging system 100 of this modified example is the same as that of the imaging system 100 of the first embodiment.
10A and 10B show a flowchart of the second photographing control process of this modified example. Also, Fig. 11 shows the time lapse during execution of the second photographing control process of this modified example when the remaining charge of the battery 26 of the photographing device 2 is equal to or greater than a predetermined value. The operation of the irradiation device 1 is omitted in Figs. 10A, 10B, and 11.

In the second imaging control process of this modified example, the control unit 41 of the console 4 and the imaging side control unit 21 of the imaging device 2 perform steps S1 to S10 similar to the first imaging control process of the first embodiment.
When the irradiation device 1 and the photographing device 2 receive the photographing stop signal, they stop the photographing process (step S11b).
Next, the photographing control unit 21 determines whether the remaining charge of the battery 26 of the photographing device 2 is equal to or greater than a predetermined value (step S111b). The predetermined value may be an amount of power sufficient to cover the power consumed in preparing for the next photographing operation and in carrying out the next photographing operation.
If the remaining charge of the battery 26 is less than the predetermined value (step S111b; NO), the imaging control unit 21 switches the imaging device 2 to a standby state (step S112b). The subsequent operations of the console 4 and the imaging device 2 are the same as those from step S12 onward in the first imaging control process of the first embodiment.

If the remaining charge of the battery 26 is equal to or greater than a predetermined value (step S111b; YES), the photographing-side control unit 21 starts preparation for photographing (step S113b). That is, if the remaining charge of the battery 26 is equal to or greater than a predetermined value, the photographing-side control unit 21 sets the photographing device 2 to a preparation state at the timing when dynamic photographing is stopped.
Next, the photographing side control unit 21 performs steps S12 and S13 similar to the first photographing control process of the above embodiment.
Next, when the imaging preparation is completed, the imaging side control unit 21 transmits an imaging preparation completion signal to the console 4 (step S131b).

Next, the imaging side control unit 21 determines whether or not a imaging instruction signal has been received from the console 4 (step S132b).
If the photographing instruction signal has not been received (step S132b; NO), the photographing-side control unit 21 returns the process to step S132b, that is, waits in the preparation state.

Next, the control unit 41 performs steps S15 to S19a similar to the first photographing control process of the first embodiment, and then proceeds to step S4. As shown in Fig. 11, the control unit 41 has already received the photographing preparation completion signal from the photographing device 2 at this point, and therefore, in step S4, displays on the display unit 44 that photographing is possible.
Then, the control unit 41 performs steps S5 and S6 similar to the first photography control process of the first embodiment.
When the photographing side control unit 21 receives the photographing instruction signal (step S132b; YES), the process proceeds to step S7.

In step S111b of the second photography control process of this modified example, the photography-side control unit 21 determines whether the remaining charge of the battery 26 of the photography device 2 is equal to or greater than a predetermined value, but instead, the photography device 2 may determine whether the capacity of the battery 26 is equal to or greater than a predetermined value. The predetermined value can be set arbitrarily.
If the capacity of the battery 26 is less than the predetermined value (step S111b; NO), the photographing-side control unit 21 puts the photographing device 2 into a standby state.
If the capacity of the battery 26 is equal to or greater than the predetermined value (step S111b; YES), the photographing-side control unit 21 starts preparation for photographing. That is, if the capacity of the battery 26 is equal to or greater than the predetermined value, the photographing-side control unit 21 sets the photographing device 2 to a preparation state at the timing when dynamic photographing is stopped.

11 , in the second imaging control process of this modified example, as in the conventional imaging control process, the time from when the set number of frame images are captured and the exposure switch 5a is opened until the display of the preview image is completed on the console 4 is set to, for example, 23 [sec]. Also, the time from when the console 4 starts receiving the main image data until it is completed is set to, for example, 29 [sec]. Also, the time from when the imaging device 2 starts preparing for imaging until it completes the preparation is set to, for example, 26 [sec].
11 , in the second imaging control process of this modified example, the display of the preview image on the console 4 and the reception of the actual image data are simultaneously performed with the preparation for imaging in the imaging device 2. Therefore, the user's waiting time, which is the time from when the set number of frame images have been captured and the exposure switch 5a has been opened to stop the imaging until the exposure switch 5a can be pressed to start the next imaging, is at least 52 seconds. In this way, the user's waiting time can be shortened compared to the conventional imaging control process described above.

Furthermore, as described above, if the remaining charge of the battery 26 is less than a predetermined value, or if the capacity of the battery 26 is less than a predetermined value, the photographing-side control unit 21 transitions the photographing device 2 to a standby state when the photographing process is stopped. This prevents the photographing device 2 from waiting in a preparation state, which consumes more battery power than a standby state, and prevents a decrease in the number of frame images that can be photographed due to a low remaining battery power.

Second Embodiment
Next, a conventional photographing control process when an image is not photographed will be described.
The conventional photographing control process in the event of a photographing error is a process that is performed when a photographing error occurs before the set number of frame images have been photographed.
Specifically, this occurs when the user releases the exposure switch 5a before the set number of frame images have been captured, or when the control unit 41 of the console 4 detects that the subject has moved out of the region of interest in the preview image data received from the imaging device 2.

The following description will focus on the differences from the conventional photographing control process. The configuration of the photographing system 100 of the second embodiment is the same as that of the photographing system 100 of the first embodiment.
12A and 12B show a flowchart of a conventional imaging control process when an imaging error occurs. Also, Fig. 13 shows the passage of time during execution of the conventional imaging control process when an imaging error occurs. In Figs. 12A, 12B, and 13, the operation of the irradiation device 1 is omitted.

In the conventional photographing control process when an image is not captured, the control unit 41 of the console 4 and the photographing side control unit 21 of the photographing device 2 perform steps S1 to S8 similar to the conventional photographing control process.
Next, the control unit 41 determines whether an imaging error has occurred before the set number of frame images have been photographed (during the photographing) (step S9c).
If no imaging error occurs during imaging (step S9c; NO), the subsequent operations of the console 4 and imaging device 2 are the same as those from step S9 onwards in the conventional imaging control process.

If an imaging error occurs during imaging (step S9c; YES), the control unit 41 and the imaging-side control unit 21 perform steps S10 to S13 similar to the conventional imaging control process. In step S10, the control unit 41 may display a dialog box or the like on the display unit 44 to inform the user that an imaging error has occurred during imaging.
Next, the imaging side control unit 21 determines whether or not an imaging preparation instruction signal has been received from the console 4 (step S131c).
If the photographing preparation instruction has not been received (step S131c; NO), the photographing-side control unit 21 shifts the process to step S131c, that is, remains in standby state.

Next, the control unit 41 executes steps S15 and S16 similar to the conventional photographing control process.
When reception of the image data has been completed (step S16; YES), the control unit 41 displays a rejected image button for receiving a re-photograph instruction from the user on the display unit 44. Then, the control unit 41 determines whether or not the control unit 41 has received a user's press of the rejected image button via the operation unit 45 (step S161c).
If the control unit 41 does not receive a press of the reject button even after a predetermined time has elapsed (step S161c; NO), the control unit 41 ends this process. The predetermined time can be set arbitrarily.

When the control unit 41 receives a press of the reject button (step S161c; YES), the control unit 41 transmits a photography preparation instruction signal to the photography device 2 (step S162c), and the process proceeds to step S4.
When the imaging side control unit 21 receives the imaging preparation instruction signal from the console 4 (step S131c; YES), the imaging side control unit 21 shifts the process to step S2. Thereafter, the imaging side control unit 21 performs step S3 similar to the conventional imaging control process described above, and the control unit 41 performs step S4 similar to the conventional imaging control process described above.

In the conventional imaging control process described above, as shown in FIG. 13, the time from when the exposure switch 5a is released during imaging to when the preview image display on the console 4 is completed is, for example, 17 seconds, shorter than in the conventional imaging control process because the exposure switch 5a is released during imaging. The time from when the console 4 starts receiving the actual image data to when it is completed is, for example, 23 seconds. The time from when the imaging side control unit 21 subsequently starts preparing for imaging to when it is completed is, for example, 26 seconds. The sum of these times, that is, the user's waiting time from when the exposure switch 5a is released during imaging, stopping imaging, to when the exposure switch 5a can be pressed to start the next imaging, is at least 66 seconds.

Next, the third photographing control process of the second embodiment performed by the photographing system 100 will be described.
14A and 14B show a flowchart of the third imaging control process of the second embodiment. Also, Fig. 15 shows the time lapse during execution of the third imaging control process of the second embodiment. The operation of the irradiation device 1 is omitted in Figs. 14A, 14B, and 15.

In the third imaging control process of the second embodiment, the control unit 41 of the console 4 and the imaging side control unit 21 of the imaging device 2 perform steps S1 to S9c similar to the conventional imaging control process when an imaging error occurs.
If no imaging error occurs during imaging (step S9c; NO), the subsequent operations of the console 4 and imaging device 2 are the same as those from step S9 onwards in the first imaging control process of the first embodiment.

If an imaging error occurs during imaging (step S9c; YES), the control unit 41 transmits an imaging stop signal to the imaging device 2 via the control device 1a of the irradiation device 1 (step S10).
Next, when the imaging side control unit 21 receives an imaging stop signal from the console 4, it stops the imaging process and starts preparation for imaging (step S11d). That is, when an imaging error occurs in the dynamic image data, the imaging side control unit 21 sets the imaging device 2 to the preparation state at the timing when the dynamic imaging is stopped.
Here, the photographing-side control unit 21 may disable the setting of transitioning the photographing device 2 to a standby state. In other words, if a photographing error occurs in the dynamic image data, the photographing-side control unit 21 disables setting the photographing device 2 to a standby state at the timing when dynamic photographing is stopped. For example, the photographing-side control unit 21 may set the photographing device 2 to another state in which power consumption is between the standby state and the preparation state.
Next, the imaging side control unit 21 executes steps S12 and S13 similar to the conventional imaging control process when an imaging error occurs.
Next, when the imaging preparation is completed, the imaging side control unit 21 transmits an imaging preparation completion signal to the console 4 (step S131d).

Next, the imaging side control unit 21 determines whether or not a imaging instruction signal has been received from the console 4 (step S132d).
If the photographing instruction signal has not been received (step S132d; NO), the photographing-side control unit 21 returns the process to step S132d, that is, waits in the preparation state.

Next, the control unit 41 executes steps S15, S16, and S161c similar to the conventional photographing control process when a photographing error occurs.
If the control unit 41 has received a press of the reject button (step S161c; YES), the control unit 41 proceeds to step S4. As shown in Fig. 15, the control unit 41 has already received the image capture preparation completion signal from the image capture device 2 at this point, and therefore, in step S4, the control unit 41 displays on the display unit 44 that image capture is possible.
Then, the control unit 41 executes steps S5 and S6 similar to the conventional photographing control process when a photographing error occurs.
When the photographing side control unit 21 receives the photographing instruction signal (step S132d; YES), the process proceeds to step S7.

15 , in the third imaging control process of the second embodiment, similarly to the conventional imaging control process, the time from when the exposure switch 5a is released during imaging to when the display of the preview image on the console 4 is completed is, for example, 17 seconds. Also, the time from when the reception of the actual image data on the console 4 starts to when it is completed is, for example, 23 seconds. Also, the time from when the imaging side control unit 21 starts preparation for imaging to when it completes preparation for imaging is, for example, 26 seconds.
15 , in the third imaging control process of the second embodiment, the display of the preview image on the console 4, the reception of the actual image data, and the preparation for imaging in the imaging device 2 are all performed simultaneously, so the user's waiting time, which is the time from when the exposure switch 5a is opened during imaging to stop imaging until the exposure switch 5a can be pressed to start the next imaging, is at least 40 seconds. In this way, the user's waiting time can be shortened compared to the above-mentioned conventional imaging control process when an imaging error occurs.

FIG. 16 shows the passage of time during execution of the third shooting control process of the second embodiment in a case where an imaging error occurs earlier than in the example shown in FIG.
16, the time from when the exposure switch 5a is released during imaging to when the display of the preview image on the console 4 is completed is, for example, 7 seconds, which is shorter than the example shown in FIG. 15. The time from when the reception of the actual image data on the console 4 starts to when it is completed is, for example, 13 seconds. The time from when the imaging side control unit 21 starts preparation for imaging to when it is completed is, for example, 26 seconds. In other words, in the example shown in FIG. 16, the time from when the exposure switch 5a is released during imaging to when the reception of the actual image data is completed is shorter than the time from when preparation for imaging on the imaging device 2 starts to when it is completed.
16 , in the third imaging control process of the second embodiment, the control unit 41 performs step S161c, then waits until it receives an imaging preparation completion signal from the imaging device 2, and upon receiving the imaging preparation completion signal, performs step S4. In this case, the user's waiting time, which is the time from when the exposure switch 5a is opened during imaging to stop imaging until the exposure switch 5a can be pressed to start the next imaging, is at least 26 seconds.

Third Embodiment
The following description will focus on the differences from the first and second embodiments. The configuration of the imaging system 100 of the third embodiment is the same as that of the imaging system 100 of the first and second embodiments.

Next, the fourth photographing control process of the third embodiment performed by the photographing system 100 will be described.
The fourth photographing control process of the third embodiment is a process for completing photographing of the set number of frame images set in the photographing order information.
17A and 17B are flowcharts showing the fourth imaging control process of the third embodiment. In Fig. 17A and 17B, the operation of the irradiation device 1 is omitted.

In the fourth imaging control process of the third embodiment, the control unit 41 of the console 4 and the imaging side control unit 21 of the imaging device 2 perform steps S1 to S10 similar to those of the first imaging control process of the first embodiment.
Upon receiving the imaging stop signal, the irradiation device 1 and the imaging device 2 stop the imaging process. Then, the imaging side control unit 21 sets the imaging device 2 to a standby state for a predetermined standby time (step S11e).
Next, the photographing side control unit 21 performs steps S12 and S13 similar to the first photographing control process of the first embodiment.
Next, the imaging-side control unit 21 determines whether a predetermined waiting time has elapsed (step S131e).
If the predetermined waiting time has not elapsed (step S131e; NO), the imaging-side control unit 21 returns the process to step S131e, that is, remains in standby mode until the predetermined waiting time has elapsed.
Moreover, if the predetermined waiting time has elapsed (step S131e; YES), the photographing-side control unit 21 shifts the process to step S2 and starts preparation for photographing.
Thereafter, similarly to the first photographing control process of the first embodiment, the photographing side control unit 21 carries out step S3.
Next, the control unit 41 performs steps S15 to S19a similar to the first photography control process of the first embodiment, and then moves the process to step S4.

Next, the fifth photographing control process of the third embodiment performed by the photographing system 100 will be described.
The fifth photographing control process of the third embodiment is a process performed when a photographing error occurs before the set number of frame images have been photographed.
18A and 18B are flowcharts showing the fifth imaging control process of the third embodiment. In Fig. 18A and Fig. 18B, the operation of the irradiation device 1 is omitted.

In the fifth imaging control process of the third embodiment, the control unit 41 of the console 4 and the imaging side control unit 21 of the imaging device 2 perform steps S1 to S9c similar to those in the third imaging control process of the second embodiment.
If no imaging error occurs during imaging (step S9c; NO), the subsequent operations of the console 4 and imaging device 2 are the same as those from step S9 onwards in the fourth imaging control process of the third embodiment.

If an imaging error occurs during imaging (step S9c; YES), the control unit 41 transmits an imaging stop signal to the imaging device 2 via the control device 1a of the irradiation device 1 (step S10).
Next, the photographing side control unit 21 performs steps S11e to S131e similar to the fourth photographing control process of the third embodiment.
If the predetermined waiting time has not elapsed (step S131e; NO), the imaging-side control unit 21 returns the process to step S131e, that is, remains in standby mode until the predetermined waiting time has elapsed.
Moreover, if the predetermined waiting time has elapsed (step S131e; YES), the photographing-side control unit 21 shifts the process to step S2 and starts preparation for photographing.
Thereafter, similarly to the third photographing control process of the second embodiment, the photographing side control unit 21 carries out step S3.
Next, the control unit 41 performs steps S15 to S161c similar to the third photographing control process of the second embodiment, and then moves the process to step S4.

In step S11e of the fourth and fifth imaging control processes of the third embodiment, the imaging control unit 21 calculates and sets the predetermined waiting time as a first waiting time based on the time it takes a user, such as a radiographer, to check the preview image and the actual image for each imaging target region (image confirmation time). For example, if the imaging target region is the chest, the first waiting time is 20 seconds. Also, if the imaging target region is the knee joint, which requires confirmation of more complex movements than the chest, the first waiting time is 30 seconds.
That is, the imaging-side control unit 21 sets the first standby time, which is the standby time after dynamic imaging is stopped, for each imaging target part. Here, the imaging-side control unit 21 functions as a second setting unit.
In addition, the imaging side control unit 21 may store information on the image confirmation time for the area to be imaged in the memory unit 24, perform machine learning on the accumulated information on past image confirmation times, and calculate and set the above-mentioned specified first waiting time from the learning results.
That is, the imaging control unit 21 performs machine learning of the confirmation time of the dynamic image corresponding to the imaging target part. Here, the imaging control unit 21 functions as a first learning unit.

The imaging control unit 21 may also calculate and set the predetermined waiting time as a second waiting time based on the image confirmation time of each imaging technician, for example, 20 seconds for Technologist A and 30 seconds for Technologist B, depending on the technician's skill.
That is, the imaging-side control unit 21 sets the second standby time, which is the standby time after the dynamic imaging is stopped, for each imaging technician. Here, the imaging-side control unit 21 functions as a third setting unit.
In addition, the imaging side control unit 21 may store information on the image confirmation time for the imaging technician in the memory unit 24, perform machine learning on the accumulated information on past image confirmation times, and calculate and set the above-mentioned specified second waiting time from the learning results.
That is, the imaging control unit 21 performs machine learning of the dynamic image confirmation time according to the cameraman. Here, the imaging control unit 21 functions as a second learning unit.

Furthermore, the imaging side control unit 21 may calculate and set the predetermined waiting time as a third waiting time based on the characteristics of the workflow of each facility where the imaging system 100 is installed. Specifically, the characteristics of the workflow include differences in the time required for each step in the fourth imaging control process or the fifth imaging control process.
That is, the photographing-side control unit 21 sets the third standby time, which is the standby time after dynamic photographing is stopped, for each facility where the photographing device 2 is installed. Here, the photographing-side control unit 21 functions as a fourth setting unit.
In addition, the imaging side control unit 21 may store the characteristics of the workflow of the facility where the imaging system 100 is installed in the memory unit 24, perform machine learning on the accumulated characteristics of past workflows, and calculate and set the above-mentioned specified third waiting time from the learning results.
That is, the imaging-side control unit 21 performs machine learning of the required time in the workflow of the facility. Here, the imaging-side control unit 21 functions as a third learning unit.

Here, the imaging side control unit 21 may select and set a timing that satisfies predetermined conditions from multiple candidates as the timing to set the imaging device 2 (radiography device) to a preparation state for the next imaging.

Specifically, when the photographing side control unit 21 completes photographing of the set number of frame images set in the photographing order information, the photographing side control unit 21 stores first condition information, which is information on which process to execute from the first photographing control process of the first embodiment, the second photographing control process of the modified example, and the fourth photographing control process of the third embodiment, in the storage unit 24. The first condition information is set in advance and transmitted from an external device or the like.
Furthermore, if an imaging error occurs before the set number of frame images have been captured, the imaging-side control unit 21 stores second condition information, which is information on which of the third imaging control process of the second embodiment and the fifth imaging control process of the third embodiment to execute, in the storage unit 24. The second condition information is set in advance and transmitted from an external device or the like.
The photographing-side control unit 21 selects and sets the timing for setting the photographing device 2 to the ready state based on the first condition information or the second condition information, that is, the timing that satisfies a predetermined condition.

〔effect〕
The radiographic imaging device (imaging device 2) included in the imaging system 100 according to this embodiment described above is a radiographic imaging device that generates dynamic image data, and is equipped with a first setting unit (imaging side control unit 21) that can set the timing for putting the radiographic imaging device into a preparation state for the next imaging after the dynamic imaging that generates the dynamic image data has stopped to a timing different from the timing at which the next imaging order is selected.
Therefore, it is possible to provide a radiation imaging apparatus that allows a more suitable timing to be set as the timing for transitioning the radiation imaging apparatus to the ready state than when the next imaging order is selected.

In addition, in the radiation imaging device provided in the imaging system 100 according to this embodiment, the first setting unit selects and sets a timing that satisfies predetermined conditions from among a plurality of candidates as the timing for setting the radiation imaging device to a preparation state for the next imaging.
Therefore, the radiation imaging apparatus can be transitioned to the ready state at the timing when a predetermined condition based on the first condition information or the second condition information is satisfied.

In addition, in the radiation imaging device provided in the imaging system 100 of this embodiment, the first setting unit sets the radiation imaging device to a standby state that is more power-saving than the ready state while preview image data, which is dynamic image data extracted from the captured frame image data at a predetermined frame rate, is being transmitted, and sets the radiation imaging device to the ready state at the timing while the main image data, which is dynamic image data of all the captured frame image data, is being transmitted.
Therefore, since the transmission of the actual image data and the preparation for shooting are carried out simultaneously, the waiting time of the user, which is the time from stopping shooting to starting the next shooting, can be shortened.

In addition, the radiation imaging device provided in the imaging system 100 according to this embodiment is equipped with a battery 26, and the first setting unit sets the radiation imaging device to a ready state when dynamic imaging is stopped if the remaining charge of the battery 26 is equal to or greater than a predetermined value.
Therefore, when the remaining charge of the battery 26 is equal to or greater than a predetermined value, the waiting time for the user until the next photographing can be shortened.

In addition, the radiation imaging device provided in the imaging system 100 of this embodiment is equipped with an external battery 26, and the first setting unit sets the radiation imaging device to a ready state when dynamic imaging is stopped if the capacity of the battery 26 is equal to or greater than a predetermined value.
Therefore, if the capacity of the battery installed in the radiation imaging apparatus is equal to or greater than a predetermined value, the waiting time for the user until the next imaging can be reduced.

In addition, in the radiation imaging device provided in the imaging system 100 of this embodiment, the first setting unit disables setting the radiation imaging device to a power-saving standby state rather than a ready state at the time when dynamic imaging is stopped if an imaging error occurs in the dynamic image data.
Therefore, it is possible to prevent the radiation imaging apparatus from transitioning to a standby state, thereby preventing the user from having to wait a long time until re-imaging.

In addition, in the radiation imaging device provided in the imaging system 100 of this embodiment, the first setting unit sets the radiation imaging device to a ready state at the time when dynamic imaging is stopped if an imaging error occurs in the dynamic image data.
Therefore, the waiting time for the user until re-photographing can be shortened compared to the conventional method.

In addition, the radiographic imaging device provided in the imaging system 100 according to this embodiment is provided with a second setting unit (imaging side control unit 21) that sets a first standby time, which is a time period in a standby state that is more power-efficient than the preparation state after dynamic imaging is stopped, for each part of the body to be imaged.
Therefore, the radiation imaging apparatus can be set to the ready state at the optimum timing according to the region to be imaged.

In addition, the radiographic imaging device provided in the imaging system 100 according to this embodiment is provided with a first learning unit (imaging side control unit 21) that performs machine learning to determine the confirmation time for dynamic images according to the area to be imaged, and the second setting unit sets the first waiting time based on the learning results by the first learning unit.
Therefore, a more suitable first waiting time can be easily set.

In addition, the radiographic imaging device provided in the imaging system 100 according to this embodiment is provided with a third setting unit (imaging side control unit 21) that sets a predetermined second standby time for each imaging technician, which is a standby time that is more power-efficient than the preparation state after dynamic imaging has been stopped.
Therefore, the radiographic apparatus can be set to the ready state at the optimum timing according to the skill of the radiographer.

In addition, the radiographic imaging device provided in the imaging system 100 according to this embodiment is provided with a second learning unit (imaging side control unit 21) that performs machine learning to determine the confirmation time for dynamic images according to the imaging technician, and a third setting unit sets the second waiting time based on the learning results by the second learning unit.
Therefore, a more suitable second waiting time can be easily set.

In addition, the radiographic imaging device provided in the imaging system 100 according to this embodiment is provided with a fourth setting unit (imaging side control unit 21) that sets a third standby time, which is a time period in a standby state that is more power-saving than the preparation state after dynamic imaging is stopped, for each facility in which the radiographic imaging device is installed.
Therefore, the radiation imaging apparatus can be set to the ready state at the most appropriate timing according to the facility where the radiation imaging apparatus is installed.

In addition, the radiation imaging device provided in the imaging system 100 according to this embodiment is provided with a third learning unit (imaging side control unit 21) that performs machine learning to learn the required time in the facility's workflow, and the fourth setting unit sets the third waiting time based on the learning results by the third learning unit.
Therefore, a more suitable third waiting time can be easily set.

Note that the description in this embodiment is an example of a suitable radiography system according to the present invention, and is not limited to this.

For example, although the imaging system 100 in the above embodiment is equipped with a medical cart 1A, this is not limited to this. The imaging system 100 can also be installed and used in an imaging room in a hospital, etc.

Furthermore, in the first, second, and third embodiments described above, the photographing-side control unit 21 may set the photographing device 2 to a standby state while the actual image data is being transmitted, and after transmission of the actual image data is complete, the photographing device 2 may prepare for photographing.

Furthermore, after performing step S13 of the first shooting control process of the first embodiment shown in Figures 8A and 8B, the shooting side control unit 21 may proceed to step S2 if the shooting in step S7 is dynamic shooting, or may keep the shooting device 2 in a standby state if the shooting in step S7 is not dynamic shooting.
Alternatively, after performing step S111b of the second shooting control process of the modified example shown in Figures 10A and 10B, the shooting side control unit 21 may perform step S113b if the remaining charge of the battery 26 is equal to or greater than a predetermined value (step S111b; YES) and if the shooting in step S7 is dynamic shooting, and may set the shooting device 2 to a standby state if the shooting in step S7 is not dynamic shooting.
Alternatively, when the photographing side control unit 21 receives a photographing stop signal from the console 4 in step S11d of the third photographing control process of the second embodiment shown in Figures 14A and 14B, it may stop the photographing process, and if the photographing in step S7 is dynamic photographing, it may carry out preparation for photographing, or if the photographing in step S7 is not dynamic photographing, it may set the photographing device 2 to a standby state.

Furthermore, in the third imaging control process of the second embodiment described above, if an imaging error occurs in the dynamic image data, the imaging-side control unit 21 may set the imaging device 2 to a standby state at the timing when dynamic imaging is stopped.

The photographing device 2 may also include a notification unit that notifies the user by lighting an LED or making a sound. When preparing for photographing, the photographing control unit 21 controls the notification unit to notify the user that photographing preparation is being performed.
Furthermore, when starting preparation for imaging, the imaging side control unit 21 may transmit an imaging preparation start signal to the console 4. When the control unit 41 of the console 4 receives the imaging preparation start signal from the imaging device 2, it displays on the display unit 44 a message that the imaging device 2 is currently preparing for imaging and the remaining time until the imaging preparation is completed.

In addition, the detailed configuration and operation of each device that makes up the imaging system 100 may be modified as appropriate without departing from the spirit and scope of the present invention.

100 Imaging system 1A Medical cart 1 Irradiation device (radiation irradiation device)
1a Control device (radiation control device)
REFERENCE SIGNS LIST 11 Irradiation side control unit 11a Irradiation side oscillator 12 High voltage generation unit 13 Memory unit 14 Irradiation side interface unit 1b Tube 2 Imaging device (radiography device)
21 Imaging side control unit (first setting unit, second setting unit, third setting unit, fourth setting unit)
21a Imaging side oscillator 22 Radiation detection unit 23 Readout unit 24 Memory unit 25 Communication unit 251 Imaging side interface unit 252 Wireless communication unit 3 Communication cable 4 Console 41 Control unit 42 Memory unit 43 Communication unit 44 Display unit 45 Operation unit 5 Operation panel 5a Exposure switch 6 Storage unit 7 Charging unit 8 Access point

Claims (14)

A radiographic apparatus for generating dynamic image data,
a first setting unit that can set a timing for starting a transition to a preparation state for the next radiography in the radiography apparatus after the dynamic radiography for generating the dynamic image data is stopped to a timing different from a timing at which a next radiography order is selected ;
The timing different from the time of selecting the next imaging order includes the timing when the radiation imaging device is in a standby state that is more power-saving than the ready state, and starts transmitting main image data, which is dynamic image data of all captured frame image data, after completing transmission of preview image data, which is dynamic image data extracted from the captured frame image data at a predetermined frame rate . The radiation imaging apparatus according to claim 1 , wherein the first setting unit selects and sets a timing that satisfies a predetermined condition from among a plurality of candidates as the timing to start transitioning to a preparation state for the next imaging in the radiation imaging apparatus. The radiation imaging apparatus according to claim 1 , wherein the first setting unit sets the radiation imaging apparatus to the standby state while the preview image data is being transmitted. Equipped with a battery,
4. The radiographic imaging device according to claim 1, wherein the first setting unit sets the timing at which the radiographic imaging device starts transitioning to a preparation state for the next imaging to the timing at which the dynamic imaging is stopped when the remaining charge of the battery is equal to or greater than a predetermined value. Equipped with an external battery,
5. The radiation imaging device according to claim 1, wherein, when the capacity of the battery is equal to or greater than a predetermined value, the first setting unit sets the timing at which the radiation imaging device starts transitioning to a preparation state for the next imaging to the timing at which the dynamic imaging is stopped. The radiographic imaging device according to any one of claims 1 to 5, wherein the first setting unit disables setting the radiographic imaging device to a power-saving standby state rather than the ready state when the dynamic imaging is stopped if an imaging error occurs in the dynamic image data. 7. The radiographic imaging device according to claim 1, wherein the first setting unit sets the timing at which the radiographic imaging device starts transitioning to a preparation state for the next imaging to the timing at which the dynamic imaging is stopped when an imaging error occurs in the dynamic image data. The radiographic imaging device according to any one of claims 1 to 7, further comprising a second setting unit that sets a first standby time, which is the time during which the device remains in a standby state that consumes less power than the preparatory state after the dynamic imaging has stopped, for each imaging target region. a first learning unit that performs machine learning to learn a confirmation time for a dynamic image according to a body part to be imaged;
The radiographic imaging apparatus according to claim 8 , wherein the second setting unit sets the first standby time based on a learning result by the first learning unit. The radiographic imaging device according to any one of claims 1 to 9, further comprising a third setting unit that sets, for each radiographer, a second standby time, which is the time during which the radiographic imaging device remains in a standby state that consumes less power than the preparatory state after the dynamic imaging has stopped. a second learning unit that performs machine learning to learn a time required for checking dynamic images according to a cameraman;
The radiographic imaging apparatus according to claim 10 , wherein the third setting unit sets the second standby time based on a learning result by the second learning unit. The radiographic imaging device according to any one of claims 1 to 11, further comprising a fourth setting unit that sets a third standby time, which is the time during which the radiographic imaging device is in a standby state that consumes less power than the preparatory state after the dynamic imaging has stopped, for each facility in which the radiographic imaging device is installed. a third learning unit that performs machine learning to learn the required time in the facility's workflow;
The radiographic imaging apparatus according to claim 12 , wherein the fourth setting unit sets the third standby time based on a learning result by the third learning unit. A computer of a radiographic imaging device that generates dynamic image data,
a setting unit that can set a timing for starting a transition to a preparation state for the next radiography in the radiography apparatus after the dynamic radiography for generating the dynamic image data has been stopped to a timing different from that at the time of selecting the next radiography order ;
The timing different from the time of selecting the next imaging order is a program including a timing when the radiation imaging device is in a standby state that is more power-saving than the ready state, and after completing transmission of preview image data, which is dynamic image data extracted from the captured frame image data at a predetermined frame rate, starts transmitting main image data, which is dynamic image data of all captured frame image data .