JP7630976B2 - Radiography system, radiation imaging apparatus, and method for managing a radiation imaging system - Google Patents

Description

The present invention relates to a radiography system, a radiography device, and a method for managing a radiography system.

Radiation imaging systems using radiographic devices that detect radiation and generate images are widely used in industrial, medical, and other fields.

Radiography imaging is performed in an imaging room and an operation room. In the imaging room, multiple stationary imaging tables are installed for different purposes, such as for standing and lying down, and multiple radiation imaging devices are also installed. When imaging, the user transports the radiation imaging device to the desired imaging table based on the examination order received from the requester and uses it.

The radiation imaging device may be placed between the subject and the imaging table, or may be loaded into the storage section of the imaging table. In such cases, depending on the placement, it may be difficult for the user to check the display unit, such as the LED, that shows the status of the radiation imaging device, or to directly operate the buttons on the radiation imaging device.

Patent Document 1 discloses a radiography system that is equipped with a control terminal on an imaging stand that can communicate with the radiography device and has an operation function for the radiography device, such as changing the power supply and driving state of the radiography device to a state in which imaging is possible.

JP 2018-33623 A

In the radiography system with a control terminal described in Patent Document 1, the user must manage the combination of the control terminal and the radiography device at a console in the operation room, which leads to an increase in the number of imaging steps. It also describes how the combination can be changed automatically, but does not describe the detailed method.

The present invention has been made in consideration of the above problems, and aims to provide a radiography system that can easily manage combinations of control terminals and radiography devices.

The above problem is solved by a radiation imaging system having a radiation imaging device that captures a radiation image according to irradiated radiation, a control terminal that controls imaging of the radiation imaging device, an identifier acquisition unit for acquiring identification information of the control terminal and the radiation imaging device, and a storage unit that stores first correspondence information that associates the identification information of the control terminal with the identification information of the identifier acquisition unit, and second correspondence information that associates the identification information of the identifier acquisition unit with the identification information of the radiation imaging device, characterized in that when the correspondence between the identification information of a first identifier acquisition unit in the identifier acquisition unit and the identification information of a first radiation imaging device in the radiation imaging device is stored in the storage unit as the second correspondence information, if the second correspondence information includes the correspondence between the identification information of the first identifier acquisition unit and the identification information of a second radiation imaging device other than the first radiation imaging device, the correspondence between the identification information of the first identifier acquisition unit and the identification information of the second radiation imaging device is deleted from the second correspondence information.

The present invention makes it easy to manage combinations of control terminals and radiography devices.

Configuration example of radiation imaging system 10 according to the first embodiment An example of an operation flow for registering second correspondence information in the relay device storage unit 510 Configuration example of radiation imaging apparatus 100 Configuration example of the control terminal 101 Configuration example of the control device 130 Configuration example of relay device 140 Configuration example of radiation imaging system 10 according to the second embodiment

(First embodiment)
A radiation imaging system 10 according to a first embodiment will be described below with reference to the drawings.

Figure 1 is a diagram showing a radiation imaging system 10 according to the first embodiment.

As shown in FIG. 1, the radiation imaging system 10 includes a radiation imaging device 100, a control terminal 101, and an identifier acquisition unit 102. The radiation imaging system 10 further includes a radiation generating device 110, a radiation source 111, a relay device 140, a control device 130, and an imaging stand 120.

In this embodiment, the radiation imaging device 100, the control terminal 101, the identifier acquisition unit 102, the radiation generating device 110, the radiation source 111, the relay device 140, and the imaging stand 120 in the radiation imaging system 10 are arranged in an imaging room. In addition, the control device 130 in the radiation imaging system 10 is arranged in an operation room.

As shown in FIG. 3, the radiation imaging device 100 has an imaging device control unit 200, a radiation detection unit 210, a status display unit 220, an imaging device operation unit 230, a power supply generation unit 240, a secondary battery 241, and an imaging device communication unit 250. The imaging device control unit 200 is a unit for controlling the operation of the radiation imaging device 100. The radiation imaging device 100 generates a radiation image based on the radiation irradiated from the radiation generation device 110 using the two-dimensionally arranged pixels of the radiation detection unit 210.

As shown in FIG. 4, the control terminal 101 has a control terminal control unit 300, a drive status operation unit 310, a drive status display unit 311, a power operation unit 320, a power status display unit 321, and a control terminal communication unit 330.

As shown in FIG. 5, the control device 130 includes a control device control unit 400, a control device storage unit 410, a control device communication unit 420, a control device operation unit 430, and a control device display unit 440. The control device communication unit 420 communicates with the radiation imaging device 100, the control terminal 101, and the radiation generation device 110 via the relay device 140.

As shown in FIG. 6, the relay device 140 includes a relay device control unit 500, a relay device storage unit 510, and a relay device communication unit 520. The relay device storage unit 510 stores correspondence information for communication between the radiation imaging device 100 and the corresponding control terminal 101.

The correspondence information is composed of two pieces of information: first correspondence information, which is correspondence information between the identification information of the control terminal 101 and the identification information of the identifier acquisition unit 102, and second correspondence information, which is correspondence information between the identification information of the radiation imaging device 100 and the identification information of the identifier acquisition unit 102.

When the relay device 140 receives a control command from the control terminal 101 to the radiation imaging device 100, the relay device control unit 500 refers to the first correspondence information and the second correspondence information from the relay device storage unit 510. In addition, the relay device 140 links the control terminal 101 and the radiation imaging device 100, and transmits the control command to the corresponding radiation imaging device 100.

The relay device 140 receives the device status, irradiation implementation information, input information of the radiation irradiation switch, etc. from the radiation generation device 110, and the imaging device control unit 200 judges whether radiation irradiation is possible or not based on this information. The relay device 140 transmits an irradiation permission command including information on the timing of radiation irradiation to the radiation imaging device 100, and mediates synchronous imaging between the radiation generation device 110 and the radiation imaging device 100. The relay device 140 can also supply power to the radiation imaging device 100 connected by wire.

The imaging table 120 functions as a holder for holding the radiation imaging device 100 in a position where imaging can be performed. The imaging table 120 includes, for example, an upright imaging table 120a for imaging the chest, and a supine imaging table 120b for imaging the abdomen and lower limbs.

The control terminal 101 is connected to the radiation imaging apparatus 100 via a relay device 140. The control terminal 101 has the functions of controlling the power supply to the radiation imaging apparatus 100 to be turned on and off, controlling the operating state of the radiation imaging apparatus 100, and displaying the power supply and operating state of the radiation imaging apparatus 100. The control terminal 101 is preferably disposed near the imaging stand 120, and is disposed, for example, removably on a part of the exterior of the imaging stand 120.

Furthermore, it is preferable that the control terminal 101 is fixed at a position on the exterior of the imaging stand 120 that is highly visible to the user and easy to operate. Therefore, the control terminal 101 can easily control the radiation imaging device 100 even when the radiation imaging device 100 is stored in the imaging stand 120. Therefore, the user can control various states of the radiation imaging device 100 while in the imaging room without directly operating the radiation imaging device 100. In addition, the user can operate the radiation imaging device 100 while in the imaging room without having to go to the operation room and operate the control device 130, which enables quick control.

The control device 130 acquires information indicating the state of the radiation imaging device 100 at a predetermined timing, and controls the control device display unit 440 to display the information. The control device 130 can also transmit information indicating the state to the control terminal 101, and the control terminal 101 that receives the information indicating the state can change the display of the drive state display unit 311 and the power state display unit 321 according to the state.

The control device display unit 440 of the control device 130 has a GUI for operating the drive state of the radiation imaging device 100, and the GUI can be operated by the control device operation unit 430. The control device display unit 440 may also have a GUI for operating the power supply state of the radiation imaging device 100.

For example, radiation irradiation conditions, device status, irradiation implementation information, and radiation irradiation switch input information are communicated between the radiation generating device 110 and the control device 130. The radiation generating device 110 transmits radiation irradiation switch input information input from the radiation generating device 110 to the radiation imaging device 100. In response to receiving the input information, the radiation imaging device 100 transmits information to the radiation generating device 110 to permit radiation irradiation. The exchange of this information is performed via the relay device 140.

The communication between the above-mentioned components may be, for example, communication conforming to a communication standard such as RS232C, Universal Serial Bus, Ethernet (registered trademark), or Bluetooth (registered trademark). A combination of these may also be used within the radiation imaging system 10. This communication may be wired or wireless.

In this embodiment, the radiographic imaging device 100 and the relay device 140 are connected via a wired Ethernet. Therefore, the identifier acquisition unit 102 uses equipment that constitutes the Ethernet. In this embodiment, the identifier acquisition unit 102 uses a cable and connector for wired Ethernet communication.

Next, the operation of each unit when the radiation imaging system 10 is used to load the radiation imaging device 100 onto the imaging stand 120 and perform imaging will be described in detail. The operation of associating the identifier acquisition unit 102 with the identifier of the radiation imaging device 100 and registering them in the relay device storage unit 510 of the relay device 140 will be described using the flowchart in FIG. 2.

The user connects the radiation imaging device 100 to a wired cable, which is the identifier acquisition unit 102 attached to the imaging stand 120 for standing position, and then stores the radiation imaging device 100 in the imaging stand 120. The imaging device control unit 200 of the radiation imaging device 100 detects the connection of the wired cable and transitions the radiation imaging device 100 to a power-on state.

The radiation imaging device 100 becomes ready to capture images when it transitions to a power-on state. The radiation imaging device 100 requires a certain amount of time to transition from a power-off state or a sleep state (hibernation state) to a state of capture-ready status. Therefore, by detecting a cable connection and turning on the power to the radiation imaging device 100 before adjusting the position, the device will enter a capture-ready status during position adjustment, allowing imaging to be performed quickly.

The following describes the operation of associating the identification information of the identifier acquisition unit 102 with the identification information of the radiation imaging device 100 and registering them in the relay device storage unit 510 of the relay device 140.

In S200, when the relay device control unit 500 detects that wired Ethernet communication has been established with the radiation imaging device 100 via the relay device communication unit 520, it obtains the MAC address of the radiation imaging device 100 as identification information from the radiation imaging device 100.

At this time, the relay device control unit 500 can determine the identifier acquisition unit 102 used to acquire the MAC address based on the information of the Ethernet PHY used by the relay device communication unit 520 to connect to the radiation imaging device 100. By its very nature, the MAC address is a unique value for each radiation imaging device, and at the same time, is information that identifies the transmission target of the Ethernet communication, so it is suitable as identification information for the radiation imaging device 100 in this embodiment.

In S210, the relay device control unit 500 searches the second correspondence information stored in the relay device storage unit 510 to see if a value identical to the MAC address of the acquired radiation imaging device 100 is stored.

In S220 and S230, if corresponding information containing the same MAC address is registered based on the results of the search in S210, the corresponding information is deleted from the relay device storage unit 510.

In S240, the relay device control unit 500 searches the second correspondence information stored in the relay device storage unit 510 to determine whether the MAC address of another radiographic imaging device 100 is stored in association with the identifier acquisition unit 102 used to acquire the identification information in S200.

In S250 and S260, if a different MAC address is already associated with the identifier acquisition unit 102 used to acquire the identification information in S200 based on the results of the search in S230, the corresponding information is deleted from the relay device storage unit 510.

In S270, the relay device control unit 500 associates the identification information of the identifier acquisition unit 102 used to acquire the identification information in S200 with the acquired MAC address of the radiation imaging device 100, and stores the association in the second association information of the relay device storage unit 510.

In this manner, in this embodiment, the identification information of the radiation imaging device 100 and the identification information of the identifier acquisition unit 102 are associated with each other and stored in the second association information of the relay device storage unit 510. This prevents the MAC address of a single radiation imaging device 100 from being registered with multiple identifier acquisition units 102, and the MAC address of the radiation imaging device 100 associated with each identifier acquisition unit 102 is uniquely determined.

The following will explain the operation of each part when imaging is performed using the radiation imaging system 10. The user adjusts the positions of the subject 700, the imaging platform 120, and the irradiation area of the radiation irradiated from the radiation source 111. In response to input of the radiation irradiation switch, the radiation generating device 110 controls the radiation source 111 so that radiation is irradiated toward the radiation imaging device 100. The radiation irradiated from the radiation source 111 passes through the subject 700 and then enters the radiation imaging device 100.

The radiography device 100 generates image data corresponding to the incident radiation and transmits this image data to the control device 130 in the operation room. The control device 130 controls the display of the control device display unit 440 to display the received image data.

The user can check the image displayed on the control device display unit 440 and determine whether or not re-imaging is necessary. If the user determines that the image displayed on the control device display unit 440 is normal, the user prepares to image another subject 700 in the same manner. When imaging of all subjects 700 has been completed, the user operates the control terminal 101 to turn off the power of the radiation imaging device 100 mounted in the imaging stand 120.

At this time, the control command from the control terminal 101 to transition to the power-off state is transmitted to the relay device 140, and the relay device control unit 500 of the relay device 140 refers to the first and second correspondence information in the relay device storage unit 510. It then determines to which radiation imaging device 100 the control command from the control terminal 101 should be transmitted, and transmits the control command to the target radiation imaging device 100 via Ethernet communication. When the imaging device control unit 200 of the radiation imaging device 100 receives the control command from the control terminal 101 to transition to the power-off state, it starts the power-off sequence.

In the power-off sequence, the imaging device control unit 200 sets the controller of the Ethernet PHY used for wired connection of the imaging device communication unit 250 to low power consumption mode and transitions to a Wake-on-Lan (WOL) standby state. WOL is a function that powers on the device via a network, with the command side sending a special Ethernet frame called a magic packet, and the start side transitioning to the power-on state when the magic packet is received.

In this embodiment, the control command from the control terminal 101 to transition the radiation imaging device 100 to the power-on state is realized using the WOL function. After setting the imaging device communication unit 250 to WOL standby, the imaging device control unit 200 of the radiation imaging device 100 stops the supply of power supplied from the secondary battery 241 via the power generation unit 240, except for some parts such as the imaging device communication unit 250.

The magic packet contains the broadcast address "FF:FF:FF:FF:FF:FF:FF" followed by the MAC address of the target to be activated repeated 16 times. The magic packet is broadcast to the entire network in which the radiation imaging system 10 exists, and if the MAC address included in the magic packet matches the receiving device's own MAC address, the receiving device determines that the magic packet is intended for the receiving device.

In other words, when the radiographic imaging device 100 in the WOL standby state receives a broadcast magic packet and detects that it contains its own MAC address, it sends a signal to the imaging device control unit 200 to instruct it to start up, and starts the power-on sequence.

The magic packet is transmitted from the relay device 140 that has received a control command from the control terminal 101 to transition to a power-on state. The relay device 140 references the relay device storage unit 510 for the control terminal 101 that sent the control command, and acquires the MAC address of the target radiation imaging device 100 based on the first and second correspondence information. The relay device 140 sets the acquired MAC address as the data of the magic packet, and broadcasts the magic packet to the network. The radiation imaging devices 100 present within the network can receive the magic packet and transition to a power-on state.

Next, we will explain how to change the imaging platform 120 from the standing imaging platform 120a to the lying imaging platform 120b.

The user transports the radiation imaging device 100 from the upright position imaging platform 120a to the lying position imaging platform 120b, connects it to the wired cable that is the identifier acquisition unit 102 attached to the lying position imaging platform 120b, and stores it in the lying position imaging platform 120b. Thereafter, the relay device control unit 500 can acquire the MAC address, which is the identifier of the radiation imaging device 100, from the identifier acquisition unit 102, in the same way as in the case of the upright position imaging platform 120a. Then, according to the flowchart in FIG. 2, the identification information of the identifier acquisition unit 102 and the MAC address of the radiation imaging device 100 are associated and registered in the relay device storage unit 510 of the relay device 140.

At this time, the MAC address of the radiation imaging device 100 acquired by the identifier acquisition unit 102 installed in the lying position imaging platform 120b has already been registered in the second correspondence information in association with the identification information of the identifier acquisition unit 102 of the standing position imaging platform 120a. Therefore, in S230, the correspondence information between the identification information of the identifier acquisition unit 102 of the standing position imaging platform 120a and the MAC address of the radiation imaging device 100 is deleted from the relay device storage unit 510.

Then, in S270, the identification information of the identifier acquisition unit 102 provided on the supine position imaging table 120b and the MAC address of the radiation imaging device 100 are registered in the second correspondence information. In this way, even if the same radiation imaging device 100 is used between multiple imaging tables 120, it is possible to control the power supply and driving state of the radiation imaging device 100 from the control terminal 101 provided near each imaging table 120.

Next, a case will be described in which the radiography device 100a is removed from the supine position imaging platform 120b, and another radiography device 100b is loaded onto the supine position imaging platform 120b to perform imaging. The user removes the radiography device 100a from the supine position imaging platform 120b, connects the other radiography device 100b to the wired cable that is the identifier acquisition unit 102 provided on the supine position imaging platform 120b, and stores it in the supine position imaging platform 120b.

Then, similarly according to the flowchart of FIG. 2, the identifier acquisition unit 102 and the MAC address of the radiation imaging device 100b are associated and registered in the relay device storage unit 510. At this time, the MAC address of the radiation imaging device 100a has already been associated with the identification information of the identifier acquisition unit 102 provided on the supine position imaging platform 120b and registered in the second association information. Therefore, in S260, the association information between the identifier acquisition unit 102 provided on the supine position imaging platform 120b and the MAC address of the radiation imaging device 100a is deleted from the relay device storage unit 510.

Then, in S270, the identification information of the identifier acquisition unit 102 provided on the supine position imaging stand 120b and the MAC address of the radiation imaging device 100b are registered in the second correspondence information. In this way, even when multiple radiation imaging devices 100 are used on the same imaging stand 120, it is possible to control the power supply and driving state of the radiation imaging device 100 mounted on the imaging stand 120 from the control terminal 101 provided near the imaging stand 120.

As described above, according to this embodiment, when the radiation imaging device 100 is used on a desired imaging stand 120, the control terminal 101 arranged near the imaging stand 120 and the radiation imaging device 100 are automatically linked and managed. A user can easily control the power supply and operating state of the radiation imaging device 100 by operating the power supply operation unit 320 and operating state operation unit 310 of the control terminal 101 in the imaging room.

Second Embodiment
Fig. 7 is a diagram showing a radiation imaging system 10 according to the second embodiment. The difference from the first embodiment shown in Fig. 1 is that the identifier acquisition unit 102 is a BLE dongle used for communication according to the Bluetooth Low Energy (BLE) standard. In addition, communication between the radiation imaging apparatus 100 and the relay apparatus 140 is wireless Ethernet, and the power supply and driving state of the radiation imaging apparatus 100 can be controlled from either of the two control terminals 101a and 101b. Below, the differences from the first embodiment will be described in detail, and a description of the common parts will be omitted.

When the identification information of multiple control terminals 101 is associated with the identification information of the same radiation imaging device 100, the identifiers of the control terminals 101a and 101b are registered in the first correspondence information in such a manner that they are associated with the identification information of the same identifier acquisition unit 102.

When the relay device control unit 500 registers the correspondence in the relay device storage unit 510, if the first correspondence information contains identification information of the same control terminal 101, the correspondence information is deleted from the relay device storage unit 510.

The following describes the procedure by which the relay device 140 receives identification information of the radiation imaging device 100 and the control terminal 101 via BLE communication.

The relay device 140 acts as a central of the GAP (Generic Access Profile) and waits to receive an advertisement packet from the radiation imaging device 100 or the control terminal 101, which are peripherals of the GAP. The radiation imaging device 100 or the control terminal 101 add information to the data section of the advertisement packet that allows the relay device 140 to determine that it is a connection target. The user can start sending advertisement packets by operating the imaging device operation unit 230 of the radiation imaging device 100 or the power operation unit 320 of the control terminal 101.

When the relay device 140 receives an advertising packet, it analyzes the data portion, determines that it is a connection target, and transmits a connection request to the radiation imaging device 100 or control terminal 101 that sent the advertising packet. When transmitting the connection request, the relay device 140 refers to the received signal strength indicator (RSSI) of the received advertising packet. If the RSSI is equal to or greater than a threshold, it is preferable to perform processing to transmit a connection request.

By setting a threshold for the RSSI, a connection can be established only when the identifier acquisition unit 102 is close to the radiation imaging device 100 or the control terminal 101 by a certain distance or more. In other words, even if multiple BLE dongles serving as identifier acquisition units 102 are associated with different radiation imaging devices 100 in the same imaging room, a proper connection can be established with the identifier acquisition unit 102 associated with the target radiation imaging device 100.

After the connection is established, the relay device 140 acts as a GATT (Generic Attribute Profile) Server, and the radiation imaging device 100 and the control terminal 101 act as GATT Clients. The radiation imaging device 100 and the control terminal 101 inquire of the relay device 140, which is the GATT Server, about the Service to be provided and the Characteristics under the Service.

Based on the acquired characteristic information, the radiation imaging device 100 and the control terminal 101 send a write request to the relay device 140 in which their own identifiers are set for the characteristics corresponding to the respective identifiers. As in the first embodiment, it is preferable that the identifier of the radiation imaging device 100 is a MAC address. It is sufficient that the identifier of the control terminal 101 is guaranteed to be independent for each control terminal 101, and a numeric value, a character string, or the like may be used as appropriate.

After the write request is normally processed by the relay device 140, the relay device 140 refers to the updated value of Characteristic and registers the first or second correspondence information. Since null packets are sent and received at regular intervals even if no data is being exchanged during the connection, it is preferable to cut off the connection between the relay device 140 and the radiation imaging device 100 or the control terminal 101 at the point when the write request is normally processed, in order to reduce power consumption.

In this embodiment, during the power-off sequence, the imaging device control unit 200 of the radiation imaging device 100 sets the wireless communication module arranged in the imaging device communication unit 250 to a low power consumption mode and transitions it to a WOL standby state.

After that, as in the first embodiment, a control command to transition to the power-on state is sent from either the control terminal 101a or 101b to the relay device 140, and the relay device 140 broadcasts a magic packet including the MAC address of the radiation imaging device 100. The imaging device communication unit 250 of the radiation imaging device 100 receives the broadcast magic packet via wireless Ethernet communication, notifies the imaging device control unit 200 of a signal instructing it to start up, and starts the power-on sequence.

As described above, according to this embodiment, a BLE dongle is used as the identifier acquisition unit 102, and an identifier can be acquired through BLE communication. In addition, it becomes possible to control the power supply and driving state of the radiation imaging device 100 that communicates with the relay device 140 via wireless Ethernet using the control terminals 101a and 101b.

Other Embodiments
The present invention can also be realized by supplying a program that achieves the above-mentioned functions to a system or device via a network or storage medium, and having one or more processors in the computer of that system or device read and execute the program.

The recording medium may be a flexible disk, an optical disk (e.g., CD-ROM, DVD-ROM), a magneto-optical disk, a magnetic tape, a non-volatile memory (e.g., USB memory), a ROM, or any other suitable recording medium. The program that implements the above-mentioned functions may be downloaded via a network and executed by a computer.

Furthermore, the functions of the above-mentioned embodiments are not limited to being realized only by the computer executing the program code that it has read. It also includes cases where an operating system (OS) running on a computer performs some or all of the actual processing based on the instructions of the program code, and the functions of the above-mentioned embodiments are realized through that processing.

Furthermore, the program code read from the recording medium may be written to memory on a function expansion board inserted into the computer or on a function expansion unit connected to the computer. This also includes cases where a CPU or the like on the function expansion board or function expansion unit performs some or all of the actual processing based on the instructions of the program code, and the above-mentioned functions are realized through this processing.

The above is one example of a typical embodiment of the present invention, but the present invention is not limited to the embodiment described above and shown in the drawings, and can be modified as appropriate within the scope of the gist of the present invention.

For example, the functions of the relay device control unit 500 and relay device storage unit 510 of the relay device 140 may be realized by the control device control unit 400 and control device storage unit 410 of the control device 130. Also, the relay device communication unit 520 of the relay device 140 may be configured by a switching hub. Therefore, the above-mentioned embodiment shows only one embodiment, and inventions that can be easily imagined from the above-mentioned embodiment are also included in the scope of the present invention.

REFERENCE SIGNS LIST 10 Radiation imaging system 100 Radiation imaging device 101 Control terminal 102 Identifier acquisition unit 110 Radiation generation device 111 Radiation source 120 Imaging stand 130 Control device 140 Relay device 700 Subject

Claims (17)

a radiation imaging device for capturing a radiation image in accordance with the irradiated radiation;
a control terminal for controlling imaging of the radiation imaging apparatus;
an identifier acquisition unit for acquiring identification information of the control terminal and the radiation imaging apparatus;
a storage unit configured to store first correspondence information in which the identification information of the control terminal corresponds to the identification information of the identifier acquisition unit, and second correspondence information in which the identification information of the identifier acquisition unit corresponds to the identification information of the radiation imaging device;
A radiography system comprising:
A radiation imaging system characterized in that, when storing in the memory unit as the second correspondence information a correspondence between the identification information of a first identifier acquisition unit among the identifier acquisition units and the identification information of a first radiation imaging device among the radiation imaging devices, if the second correspondence information includes a correspondence between the identification information of the first identifier acquisition unit and the identification information of a second radiation imaging device other than the first radiation imaging device, the correspondence between the identification information of the first identifier acquisition unit and the identification information of the second radiation imaging device is deleted from the second correspondence information. a radiation imaging device for capturing a radiation image in accordance with the irradiated radiation;
a control terminal for controlling imaging of the radiation imaging apparatus;
an identifier acquisition unit for acquiring identification information of the control terminal and the radiation imaging apparatus;
a storage unit configured to store first correspondence information in which the identification information of the control terminal corresponds to the identification information of the identifier acquisition unit, and second correspondence information in which the identification information of the identifier acquisition unit corresponds to the identification information of the radiation imaging device;
A radiography system comprising:
a radiography system characterized in that, when storing identification information of a first control terminal among the control terminals and identification information of a first identifier acquisition unit among the identifier acquisition units as the first correspondence information in the memory unit, if the first correspondence information includes a correspondence between identification information of a second control terminal among the control terminals and identification information of the first identifier acquisition unit, the identification information of the first control terminal is further associated with the identification information of the first identifier acquisition unit and stored in the first correspondence information. The radiation imaging system according to claim 1 or 2, characterized in that the storage unit is provided in a relay device that relays communication between the radiation imaging device and the control terminal. The radiography system according to claim 3, characterized in that the relay device broadcasts a signal including identification information of the radiography device within a network to which the radiography device belongs. The radiation imaging system according to claim 4, characterized in that the radiation imaging device is powered on by receiving a signal including identification information of the radiation imaging device. The radiography system according to claim 1 or 2, characterized in that the first correspondence information can be stored by associating a plurality of the control terminals with the identifier acquisition unit. The radiation imaging system according to claim 1 or 2, characterized in that the second correspondence information can store only one radiation imaging device in association with the identifier acquisition unit. 8. The radiation imaging system according to claim 1, wherein the identification information is acquired through wired LAN communication. 9. The radiation imaging system according to claim 8, wherein the identifier acquisition unit is a device that constitutes the wired LAN communication. The radiation imaging system according to any one of claims 1 to 9, characterized in that a MAC address is used as the identification information of the control terminal and the identification information of the radiation imaging device. A radiation imaging apparatus for capturing a radiation image in accordance with irradiated radiation,
a first correspondence information associating identification information of a control terminal that controls imaging of the radiation imaging apparatus with identification information of an identifier acquisition unit that acquires the identification information of the radiation imaging apparatus and the identification information of the control terminal, and a second correspondence information associating the identification information of the identifier acquisition unit with the identification information of the radiation imaging apparatus, the first correspondence information being stored in a storage unit connected to the radiation imaging apparatus;
When storing the identification information of a first identifier acquisition unit among the identifier acquisition units and the identification information of a first radiation imaging device among the radiation imaging devices as the second correspondence information in the storage unit, if the second correspondence information includes a correspondence between the identification information of the first identifier acquisition unit and the identification information of a second radiation imaging device among the radiation imaging devices,
a correspondence between the identification information of the first identifier acquisition unit and the identification information of the second radiation imaging apparatus is deleted from the second correspondence information. a radiation imaging device for capturing a radiation image in accordance with the irradiated radiation;
a control terminal for controlling imaging of the radiation imaging apparatus;
an identifier acquisition unit for acquiring identification information of the control terminal and the radiation imaging apparatus;
a storage unit that stores first correspondence information in which identification information of the control terminal and identification information of the identifier acquisition unit are associated with each other, and second correspondence information in which identification information of the identifier acquisition unit and identification information of the radiation imaging apparatus are associated with each other, the management method comprising:
a first identifier acquisition unit that acquires information about a first radiation imaging device among the radiation imaging devices and a second identifier acquisition unit that acquires information about a first radiation imaging device among the radiation imaging devices as the second correspondence information, the second identifier acquisition unit being configured to acquire information about a first radiation imaging device among the radiation imaging devices, and the second identifier acquisition unit being configured to acquire information about a first radiation imaging device among the radiation imaging devices; a radiation imaging device for capturing a radiation image in accordance with the irradiated radiation;
a control terminal for controlling imaging of the radiation imaging apparatus;
an identifier acquisition unit for acquiring identification information of the control terminal and the radiation imaging apparatus;
A management method for a radiation imaging system having a storage unit that stores first correspondence information in which identification information of the control terminal and identification information of the identifier acquisition unit are associated with each other, and second correspondence information in which the identification information of the identifier acquisition unit and identification information of the radiation imaging apparatus are associated with each other, comprising:
a first identifier acquisition unit that acquires information about a control terminal that is a first of the control terminals and an identification information of a first identifier acquisition unit that is a first identifier acquisition unit, and the identification information of the first control terminal is further associated with the identification information of the first identifier acquisition unit and stored in the first correspondence information when the first correspondence information includes an association between an identification information of a control terminal that is a second of the control terminals and an identification information of the first identifier acquisition unit. 14. A program for causing a computer to execute the method for managing a radiation imaging system according to claim 12. A computer-readable recording medium having the program according to claim 14 recorded thereon. A radiation imaging system capable of using a plurality of radiation imaging apparatuses for performing radiation imaging, comprising:
a control terminal for controlling imaging of the radiation imaging apparatus;
a management device capable of managing correspondence information of any one of the plurality of radiation imaging devices, the control terminal, and a relay unit that is connected to the radiation imaging device via a connection unit and relays the radiation imaging device and the control terminal;
When a second radiation imaging device among the plurality of radiation imaging devices is newly associated with the connection unit in a state in which a first radiation imaging device among the plurality of radiation imaging devices, the connection unit, and the control terminal are associated with each other, the management device updates the association information so that the first radiation imaging device and the connection unit are no longer associated with each other.
1. A radiation imaging system comprising: A radiation imaging system capable of using a plurality of radiation imaging apparatuses for performing radiation imaging, comprising:
A plurality of control terminals for controlling imaging of the radiation imaging apparatus;
a management device capable of managing correspondence information between the radiation imaging device, any one of the control terminals, and a relay unit that is connected to the radiation imaging device via a connection unit and relays the control terminals;
When a second control terminal among the plurality of control terminals, the relay unit, and the radiation imaging device are newly associated with each other in a state in which a first control terminal among the plurality of control terminals, the relay unit, and the radiation imaging device are associated with each other, the management device updates the association information so that the second control terminal is further associated with the connection unit in a state in which the first control terminal is associated with the connection unit.
1. A radiation imaging system comprising:

Images