JP7088102B2 - Radiation imaging device and radiological diagnostic imaging system - Google Patents

Description

The present invention relates to a radiographic apparatus and a radiological diagnostic imaging system.

Noise is generated inside an electronic device that generates image data or displays an image based on the image data due to various factors. Such noise causes the image quality of the displayed image to deteriorate and causes artifacts in the image.
Therefore, conventionally, various techniques for reducing the influence of noise that an electronic device receives when generating and displaying image data have been proposed.
For example, in Patent Document 1, a high-quality image that is not affected by the voltage fluctuation is displayed by changing the output timing of the video signal when the voltage applied to the light emitting element in the pixel fluctuates. Describes the image display device that can be used.

Japanese Unexamined Patent Publication No. 2015-018138

One of the electronic devices that generate images is a portable radiography device that generates radiographic images. In recent years, portable radiography equipment has a wireless communication function because it is necessary to improve transportability and handleability and to improve the degree of freedom in the configuration of radiological diagnostic imaging systems including radiography equipment. It is becoming more common.
In order to equip a portable radiographic image device with a wireless communication function, it is necessary to mount a wireless device, but the portable radiographic image device has a housing size because it can be stored in an existing shooting table or the like. Is prescribed in advance. In other words, since the space for storing the wireless device is limited in the portable radiographic image device, when the wireless device is mounted, it must be placed close to the image generation unit that generates image data. In many cases, you will not get it.

When transferring large-sized data such as image data, a general wireless device divides the data into a plurality of packets and alternately sends the packet and receives the response information indicating that the packet has been received. repeat.
Further, since the wireless device consumes more power during transmission than during reception, the current flowing through the wiring connecting the power supply circuit and the wireless device fluctuates when transmission and reception are repeated. Due to this current fluctuation, a magnetic field fluctuation occurs around the wiring, and the magnetic field fluctuation causes noise in the image generation unit arranged in close proximity to the wiring, and deteriorates the image quality of the generated radiation image.

However, when the technique described in Cited Document 1 is applied to a radiography apparatus, it is possible to suppress the generation of noise due to voltage fluctuations in the image generation unit, but it is caused by wireless devices arranged in close proximity to each other. Therefore, it is not possible to deal with the noise generated in the image generation unit.
On the other hand, it is conceivable to interpose a countermeasure member such as a high magnetic permeability sheet between the sensor unit and the wireless device, but the space is limited in the portable radiography apparatus. Therefore, in order to arrange the countermeasure member in the portable radiological imaging device, the size of the housing must be increased, and if this is done, it cannot be stored in the existing imaging table or the like.
Further, if such a countermeasure member is used, the number of parts to be used increases, so that the manufacturing cost of the radiography apparatus becomes high.
In addition, while the image data is being generated, measures such as restricting the transfer of the image data can be considered, but if this is done, the display of the radiographic image at the image data transfer destination (for example, the console) will be the image data. It will be slower because it cannot be generated and transferred in parallel.

The present invention has been made in view of the above problems, and in a radiographic apparatus for transferring image data of a radiographic image using a wireless device, noise noise is eliminated without arranging a countermeasure member for preventing the influence of noise inside. The purpose is to enable the transfer of image data of unaffected radiographic images in a short time.

In order to solve the above problems, the radiography apparatus of the present invention is used.
An image generator that generates image data of a radiation image according to the received radiation,
A communication unit that has a wireless device that wirelessly sends and receives data to and from other devices,
A control unit that controls the image generation unit and the communication unit,
It is provided with at least a power supply unit that supplies electric power to the communication unit.
In the communication unit, at least while the image generation unit is generating image data, the change over time of the power consumed by the communication unit is constant with the power consumed when the wireless device transmits data. It is characterized by being provided with a power adjusting unit that adjusts the state so as to be in a state of being closed or close to the state.

According to the present invention, it is possible to transfer image data of a radiographic image that is not affected by noise in a short time without arranging a countermeasure member for preventing the influence of noise inside.

It is a block diagram which shows the radiographic image diagnosis system which concerns on embodiment of this invention. It is a perspective view of the radiological imaging apparatus provided in the radiological image diagnosis system of FIG. It is a block diagram which shows the radiographing apparatus of FIG. FIG. 2 is a sectional view taken along line IV-IV of FIG. FIG. 3 is a block diagram showing a part of the electrical configuration of the radiography apparatus of FIG. 2. It is a flowchart which shows the state transition of the radiographing apparatus of FIG. (A) is a graph showing the power consumption of the communication unit when the conventional radiography apparatus transfers image data, and (b) is the consumption of the communication unit when the radiography apparatus according to the present embodiment transfers image data. It is a graph which shows the power consumption.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. However, the present invention is not limited to those shown in the drawings.

[Configuration of radiological diagnostic imaging system]
First, a schematic configuration of the radiological image diagnosis system according to the present embodiment will be described. FIG. 1 is a block diagram showing the configuration of the radiographic image diagnosis system 100 of the present embodiment.
As shown in FIG. 1, the radiation diagnostic imaging system 100 includes a radiation generator 100a, a radiography apparatus 100b, and a console 100c.

The radiation diagnostic imaging system 100 includes a hospital information system (HIS), a radiological information system (RIS), a picture archiving and communication system (PACS), and an image (not shown). It may be possible to connect to an analyzer or the like.

Although not shown, the radiation generator 100a has a voltage corresponding to preset irradiation conditions (tube voltage, tube current, irradiation time (mAs value), etc.) based on the fact that the irradiation instruction switch is pressed. It is provided with a generator for applying a voltage, a radiation source for generating a dose of radiation (for example, X-ray) corresponding to the applied voltage when a voltage is applied from the generator, and the like.
The radiation generator 100a is adapted to generate radiation R (for example, X-rays) in an manner corresponding to the radiation image (still image / moving image) to be captured.

The radiation generator 100a may be installed in the photographing room, or may be movable together with the console 100c or the like, which is called a round-trip car.

Then, the radiographing apparatus 100b is adapted to generate image data of a radiographic image according to the dose of the received radiation.
Further, the radiological imaging apparatus 100b includes a communication unit 3, and can transfer the generated image data to the console 100c via the communication unit 3.
The details of the radiological imaging apparatus 100b will be described later.

The console 100c is composed of a PC, a mobile terminal, or a dedicated device.
Further, the console 100c includes a communication unit 7 and a display unit 8.
The communication unit 7 can wirelessly receive the image data of the radiographic image from the radiographic imaging apparatus 100b.
The display unit 8 can display a radiographic image based on the received image data.

Further, the console 100c has a function of setting various imaging conditions (tube voltage, tube current, irradiation time (mAs value), frame rate, etc.) in at least one of the radiation generator 100a and the radiography apparatus 100b. There is.
Further, the console 100c has a function of instructing at least one of the radiation generator 100a and the radiography apparatus 100b to take a radiation image (irradiation irradiation and charge accumulation / readout) when the irradiation instruction switch is pressed. ing.
Further, the console 100c has a function of transmitting an image data transfer command to the radiographing apparatus 100b triggered by a predetermined operation (for example, pressing an irradiation instruction switch), and the image data transfer ends when the image data transfer is completed. It has a function of transmitting a command to the radiography apparatus 100b.

In the present embodiment, the radiographic image diagnosis system 100 is provided with a console 100c, but instead of the console 100c, an image display device having only an image data receiving function and a radiographic image display function is provided. (You may also set shooting conditions, shoot instructions, and send and receive commands from other devices).
Further, instead of the console 100c, an image analysis device that performs predetermined image processing on the received image data may be provided.
Further, although FIG. 1 illustrates a state in which the radiography apparatus 100b and the console 100c are in direct wireless communication, an AP (access point) (not shown) may be arranged to communicate via the AP. good.

[Configuration of radiography equipment]
Next, the configuration of the radiography apparatus 100b included in the radiological image diagnosis system 100 will be described. FIG. 2 is a perspective view of the radiography apparatus 100b, FIG. 3 is a block diagram showing the radiography apparatus 100b, and FIG. 4 is a sectional view taken along line IV-IV of FIG.
Although FIG. 2 illustrates a panel-shaped portable radiographic apparatus 100b, the present invention relates to a so-called stationary radiological imaging apparatus integrally formed with a support base or the like. Is also applicable.

As shown in FIGS. 2 to 4, the radiography apparatus 100b includes an image generation unit 2, a communication unit 3, a storage unit 4, and a control unit 5 housed in the housing 1 in addition to the housing 1. , And a power supply unit 6.
Each part 1 to 6 is electrically connected.

The housing 1 according to the present embodiment is formed in a thin box shape (panel shape), and one of the plurality of surfaces is a radiation incident surface 11.
Further, as shown in FIG. 2, a power switch 12, various operation switches 13, an indicator 14, a connector 15, and the like are provided on the side surface of the housing 1 adjacent to the radiation incident surface.

The image generation unit 2 includes a scintillator 21, a sensor unit 22, a scanning drive unit 23, and a readout unit 24.
Each part 22 to 24 except the scintillator 21 is electrically connected.

The scintillator 21 is formed in a flat plate shape with, for example, columnar crystals of CsI.
When the scintillator 21 receives radiation, it emits an electromagnetic wave having a wavelength longer than that of radiation (for example, visible light) with an intensity corresponding to the dose of the received radiation.
Further, as shown in FIG. 4, the scintillator 21 is arranged in the housing 1 so as to spread in parallel with the radiation incident surface 11.

In the sensor unit 22, a plurality of pixels having a detection element that generates an amount of electric charge according to the intensity of the electromagnetic wave generated by the scintillator 21 and a switch element provided between each detection element and the wiring are arranged in a two-dimensional manner. Has a board that has been made.
Further, the sensor unit 22 is arranged so as to spread in parallel with the radiation incident surface 11 and the scintillator 21 on the side opposite to the side where the radiation incident surface 11 of the scintillator 21 exists.

The scanning drive unit 23 is designed to switch on / off of each switch element.

The reading unit 24 reads out the amount of electric charge accumulated in each pixel as a signal value, and generates image data of a radiographic image based on each signal value.

The communication unit 3 is composed of, for example, a wireless module.
Then, the communication unit 3 wirelessly transmits / receives data and signals to / from another device (for example, the console 100c).
Further, the communication unit 3 is provided close to the sensor unit 22 because it is necessary to store the size of the housing 1 (particularly the radiation incident surface 11) in an existing photographing table or the like (to conform to the JIS standard). ing. In the present embodiment, for example, as shown in FIG. 3, the sensor unit 22 is arranged so as to be in contact with the surface of the sensor unit 22 opposite to the side where the scintillator 21 exists.
The details of the communication unit 3 will be described later.

The storage unit 4 is composed of an HDD (Hard Disk Drive), a semiconductor memory, or the like, and stores a processing program for executing various processes, parameters necessary for executing the processing program, files, and the like.
The storage unit 4 may be configured to store the image data of the generated radiographic image.

The control unit 5 includes a CPU (Central Processing Unit) and a RAM (Random Access Memory) (not shown).
Then, the CPU reads out various processing programs stored in the storage unit 4, develops them in the RAM, and executes various processing according to the processing programs, whereby the radiography apparatus 100b including the image generation unit 2 and the communication unit 3b. The operation of each part is controlled in an integrated manner.

The power supply unit 6 includes a battery 61 and a power supply circuit 62 for the communication unit 3.
Further, the power supply unit 6 according to the present embodiment includes a power supply circuit for an image generation unit 2 (not shown).
The power supply unit 6 is adapted to supply electric power to at least each unit of the radiography apparatus 100b including the communication unit 3.

[Communication unit configuration]
Next, a specific configuration of the communication unit 3 included in the radiography apparatus 100b will be described. FIG. 5 is a block diagram showing a part of the electrical configuration (mainly the communication unit 3) included in the radiography apparatus 100b.

As shown in FIG. 5, the communication unit 3 includes a substrate 31, a wireless device 32, and a power adjustment unit 33.

The wireless device 32 wirelessly transmits and receives various data and various commands to and from another device (for example, the console 100c).
Further, when the wireless device 32 according to the present embodiment transfers large-sized data such as image data, the data is divided into a plurality of packets, and the packet is transmitted and the response information indicating that the packet is received is received. Reception and reception are repeated alternately.
Further, the wireless device 32 is connected to the power supply unit 6 (power supply circuit 62) via the power adjustment unit 33 (monitor unit 33b described later).
Further, the wireless device 32 consumes different amounts of power when transmitting data and when receiving data. Specifically, when receiving, it consumes relatively little power, and when transmitting, it consumes more power than when receiving.
Hereinafter, the power consumed by the wireless device 32 when receiving data is referred to as a first power, and the power consumed when transmitting data is referred to as a second power.
The second power does not have to be the power consumed at the time of transmission, and may be more power than the first power within a range not exceeding the power consumed at the time of transmission.

The power adjustment unit 33 according to the present embodiment includes a power consumption unit 33a, a monitor unit 33b, an AND circuit 33c, and a switch unit 33d.

The power consumption unit 33a is connected to the power supply unit 6 (power supply circuit 62) in parallel with the wireless device 32 via the switch unit 33d.
Further, the power consumption unit 33a consumes the differential power which is the difference between the second power and the first power.

The monitor unit 33b is adapted to measure the power consumed by the wireless device 32 (current flowing through the wiring connecting the power supply circuit 62 and the wireless device 32).
Further, the monitor unit 33b outputs a control signal to the AND circuit 33c, and switches High / Low of the control signal according to the measured power consumption of the wireless device 32. Specifically, the control signal is set to Low while the power consumption of the wireless device 32 is the second power (power consumption at the time of transmission), and the control is controlled while the power consumption is the first power (power consumption at the time of reception). Set the signal to High.
The monitor unit 33b may not be provided on the substrate 31 (it may be provided outside the communication unit 3).

The AND circuit 33c has two input terminals and one output terminal.
Then, in the AND circuit 33c, a control signal from the control unit 5 is input to one input terminal, and a control signal from the monitor unit 33b is input to the other input terminal.
Further, the AND circuit 33c outputs a control signal from the output terminal to the switch unit 33d, and switches High / Low of the output signal according to the control signals input to the two input terminals. Specifically, while the control signal input from the control unit 5 is High and the control signal input from the monitor unit 33b is High, the output control signal is set to High, and at other times, the output control signal is set to High. Set the output control signal to Low.

The switch unit 33d switches ON / OFF according to the control signal input from the AND circuit 33c. Specifically, the control signal input from the AND circuit 33c is turned ON while it is High, and turned OFF while it is Low.
As described above, the power consumption unit 33a is connected in parallel with the wireless device 32 via the switch unit 33d.

Further, in the communication unit 3 of the present embodiment, the wireless device 32 and the power consumption unit 33a are arranged so as to be close to the power supply unit 6 (power supply circuit 62).
Specifically, one end of the board 31 on which the wireless device 32 and the power consuming unit 33a are mounted is arranged so as to be adjacent to the power supply circuit 62.
Therefore, the wiring connecting the power supply circuit 62 and the wireless device 32 and the wiring connecting the power supply circuit 62 and the power consuming unit 33a are cases where the wireless device 32 and the power consuming unit 33a are not close to the power supply circuit 62. It is shorter than. Further, as a result, even if the fluctuation of the current occurs inside the communication unit 3, the fluctuation of the magnetic field due to the fluctuation is less likely to occur.

[Operation / effect of radiography equipment]
Next, the operation of the radiography apparatus 100b and its effect will be described. FIG. 6 is a flowchart showing the state transition of the radiography apparatus 100b, FIG. 7A is a graph showing the power consumption of the communication unit when the conventional radiography apparatus transfers image data, and FIG. 7B is the present implementation. It is a graph which shows the power consumption of the communication unit 3 when the radiographing apparatus 100b which concerns on a form transfers image data.

The control unit 5 according to the present embodiment configured as described above has, for example, a function of generating image data of a radiation image according to the dose of radiation R received on the radiation incident surface 11.
Specifically, first, the electric charge generated by each detection element is accumulated in each pixel by turning off the switch element in the scanning drive unit 23, and then the electric charge is accumulated by turning on the switch element in the scanning drive unit 23. The charged charge is output to the readout circuit. Then, the reading unit 24 is made to read the signal value of each pixel, and further generate image data based on the plurality of signal values.

Further, the control unit 5 has a function of transmitting and receiving commands to and from another device (for example, the console 100c) via the communication unit 3.
Further, the control unit 5 has a function of transferring the generated image data to another device via the communication unit 3.

Further, the control unit 5 has a function of transitioning the operating state of the radiography apparatus 100b. This state transition is performed in parallel with the generation of image data.

First, when the power switch 12 is turned on, the radiography apparatus 100b transitions to the image data non-transfer state as shown in FIG. 6 (step S1).

In this state, the control unit 5 first supplies the standby current to the communication unit 3 by using the power supply circuit 62.
Further, the control unit 5 sets the control signal output to the AND circuit 33c to Low.
Further, when the wireless device 32 is transmitting data (power consumption is the second power), the monitor unit 33b sets the control signal output to the AND circuit 33c to Low and receives the data. When (power consumption is the first power), the control signal is set to High.
In the AND circuit 33c in this state, since the control signal input from the control unit 5 is Low, the output signal output to the switch unit 33d is set to Low regardless of the control signal input from the monitor unit 33b. Therefore, the switch unit 33d in this state becomes a non-conducting state, and all the power from the power supply circuit 62 is supplied to the wireless device 32 without being supplied to the power consumption unit 33a.

Further, the control unit 5 in this state monitors the reception status of the image data transfer command from another device (for example, the console 100c). Specifically, the determination of whether or not the image data transfer command has been received (step S2) is repeated.
That is, this image data non-transfer state is continued until the control unit 5 determines that the image data transfer command has been received.

When the control unit 5 determines that the image data transfer command has been received in the image data untransferred state (the wireless device 32 starts transmitting data, step S2: Yes), the radiography apparatus 100b determines the first image data. Transition to the transfer state (step S3).

The control unit 5 in this state causes the image generation unit 2 to generate image data.
The control unit 5 supplies the current at the time of data transfer to the communication unit 3 by using the power supply circuit 62.
Further, the control unit 5 sets the control signal output to the AND circuit 33c to High.
Further, in this state, since the wireless device 32 transmits data, the power consumption measured by the monitor unit 33b becomes the second power, and the monitor unit 33b sets the control signal to be output to the AND circuit 33c to Low.
In the AND circuit 33c in this state, even if the control signal input from the control unit 5 is High, the control signal input from the monitor unit 33b is Low, so that the output signal output to the switch unit 33d is set to Low. do. Therefore, the switch unit 33d in this state is turned off, and all the power from the power supply circuit 62 is supplied to the wireless device 32 without being supplied to the power consumption unit 33a.
That is, when the power measured by the monitor unit 33b is the second power, the control unit 5 switches the switch unit 33d to the non-conducting state (OFF).

In this state, the power consumption consumed by the entire communication unit 3 is the power consumption (second power) at the time of transmission of the wireless device 32.

This first image data transfer state is continued while the wireless device 32 is transmitting data (while the power consumption of the wireless device 32 measured by the monitor unit 33b is the first power).

When the first image data transfer state of the wireless device 32 ends (the power consumption of the wireless device becomes the first power, step S4: Yes), the radiography apparatus 100b transitions to the second image data transfer state (step). S5).

The control unit 5 causes the image generation unit 2 to generate image data even in this state.
Further, the control unit 5 supplies the current at the time of data transfer to the communication unit 3 by using the power supply circuit 62.
Further, the control unit 5 sets the control signal output to the AND circuit 33c to High even in this state.
Further, in this state, since the wireless device 32 receives the data, the power consumption measured by the monitor unit 33b becomes the first power, and the monitor unit 33b sets the control signal output to the AND circuit 33c to High.
In the AND circuit 33c in this state, the control signal input from the control unit 5 and the control signal input from the monitor unit 33b are both High, so the output signal output to the switch unit 33d is set to High. Therefore, the switch unit 33d in this state is turned on, and the power from the power supply circuit 62 is supplied not only to the wireless device 32 but also to the power consumption unit 33a.
That is, when the power measured by the monitor unit 33b is the first power, the control unit 5 switches the switch unit 33d to the conduction state (ON).

As described above, the power consumption unit 33a according to the present embodiment consumes the differential power which is the difference between the second power and the first power.
Therefore, in this state, the power consumed by the entire communication unit 3 is the power consumption at the time of reception of the wireless device 32 (first power) + the power consumption of the power consumption unit 33a (second power-first power) =. The power consumption (second power) at the time of transmission of the wireless device 32 becomes equal to the power consumption of the entire communication unit 3 in the first image data transfer state.

This second image data transfer state is continued while the wireless device 32 is receiving data (while the power consumption of the wireless device 32 measured by the monitor unit 33b is the second power).

Further, the control unit 5 in this state monitors the reception status of the image data transfer end command from another device (for example, the console 100c). Specifically, the determination of whether or not the image data transfer end command has been received (step S6) is repeated.
Since the wireless device 32 repeatedly transmits and receives data when transferring image data, the control unit 5 states that the first image data transfer state and the second image data transmission state have received the image data transfer end command. It is repeated alternately until it is judged.

By alternately repeating the first image data transfer state and the second image data transmission state, the power adjustment unit 33 consumes at least the power consumed by the communication unit 3 while the image generation unit 2 is generating image data. The change over time is adjusted so that the power consumed by the wireless device 32 when transmitting data is constant.
When the second power is set lower than the power consumption at the time of data transmission, the power consumption of the communication unit 3 is reduced when the first image data transfer state and the second image data transmission state are alternately repeated. It is not constant. However, since the second power is closer to the power consumption at the time of data transmission than the first power, the change with time of the power consumed by the communication unit 3 is constant as compared with the case where the power adjustment unit 33 is not provided. It will be adjusted to approach.

When the control unit 5 determines that the image data transfer end command has been received in the first image data transfer state or the second image data transfer state (step S6; Yes), the radiography apparatus 100b transitions to the image data non-transfer state. do.

A general wireless device including the wireless device 32 according to the present embodiment repeats transmission and reception when transferring large-sized image data.
Further, as described above, since the power consumption of the communication unit differs between the time of transmission and the time of reception as shown in FIG. 7A, the magnetic field radiated changes depending on the increase or decrease of the current.
If the distance between the image generator and the wireless device is long, this change in the magnetic field has a negligible effect on the image data. However, when the size of the housing is limited (the radiography apparatus 100b is a portable one as in the present embodiment), the wireless device 32 is placed close to the image generation unit 2 as shown in FIG. Therefore, when the image generation unit 2 generates image data, it is affected by the fluctuation of the magnetic field, and horizontal streaks occur in the radiation image.

However, in the radiography apparatus 100b according to the present embodiment, when the power consumption of the communication unit 3 in the second image data transfer state (when the wireless device 32 receives the data) is in the first image data transfer state (when the wireless device 32 receives the data) ( It becomes equal to the second power consumption which is the power consumption of the communication unit 3 (when the wireless device 32 transmits data), that is, the power consumption of the communication unit 3 becomes constant at the second power throughout the transfer period. Therefore, the current flowing through the wiring does not fluctuate, and the magnetic field does not change due to the fluctuation. Therefore, noise does not occur in the image generation unit that generates the image data in parallel with the transfer of the image data. As a result, it is possible to prevent horizontal streaks from occurring in the radiation image displayed on the display unit 8 of the console 100c, which is the transfer destination of the image data.

Further, even if the image data is generated and the image data is transferred in parallel, horizontal streaks do not appear in the radiation image, so that it is not necessary to take measures such as restricting the transfer of the image data while the radiation image is generated. Therefore, it is possible to prevent the display of the radiation image on the console 100c from being delayed by the amount that the generation of the image data and the transfer of the image data cannot be performed in parallel.
Further, since it is not necessary to arrange a countermeasure member such as a high magnetic permeability sheet between the image generation unit 2 and the communication unit 3, it is not necessary to increase the size of the housing 1 in order to secure the arrangement space. The increase in manufacturing cost can be suppressed by the amount that does not increase the number of parts.
That is, according to the radiographic imaging apparatus 100b according to the present embodiment, it is possible to transfer image data of a radiographic image that is not affected by noise in a short time without arranging a countermeasure member for preventing the influence of noise inside. can.

Further, the radiography apparatus 100b according to the present embodiment drives the power adjustment unit 33 only in the first image data transfer state and the second image data transfer state in which image data generation and transfer are performed in parallel. That is, the power adjustment unit 33 is not driven in the image data untransferred state in which the image data is not generated (noise does not occur in the image data even if the power consumption of the wireless device 32 fluctuates). Therefore, the battery 61 can be made to last longer by the amount that the power consuming unit 33a does not consume the power during the period in which the image data is not transferred.

Although the present invention has been specifically described above based on the embodiment, it is needless to say that the present invention is not limited to the above embodiment and can be appropriately modified without departing from the gist thereof.

For example, in the above embodiment, the combination of the radiography apparatus 100b and the console 100c has been described as an example, but the present invention is applied to all electronic devices that transmit and receive image data wirelessly and electrically generate or display images. It is possible to do. That is, it can be applied to a combination of a digital camera and a PC or a tablet terminal.

Further, in the above embodiment, the AND circuit 33c is used to switch ON / OFF of the switch unit 33d, but the state of the wireless device 32 is detected by the control unit 5, and the control unit 5 switches the switch unit 33d. May be done directly.

100 Radiation diagnostic imaging system 100a Radiation generator 100b Radiation imaging device 1 Housing 11 Radiation incident surface 12 Power switch 13 Operation switch 14 Indicator 15 Connector 2 Image generator 21 Scintillator 22 Sensor unit 23 Scan drive unit 24 Read unit 3 Communication unit 31 Board 32 Wireless device 33 Power adjustment unit 33a Power consumption unit 33b Monitor unit 33c Switch unit 33d AND circuit 4 Storage unit 5 Control unit 6 Power supply unit 61 Battery 62 Power supply circuit 100c Console 7 Communication unit 8 Display unit

Claims (4)

An image generator that generates image data of a radiation image according to the received radiation,
A communication unit that has a wireless device that wirelessly sends and receives data to and from other devices,
A control unit that controls the image generation unit and the communication unit,
It is provided with at least a power supply unit that supplies electric power to the communication unit.
In the communication unit, at least while the image generation unit is generating image data, the change over time of the power consumed by the communication unit is constant with the power consumed when the wireless device transmits data. A radiographing apparatus comprising a power adjusting unit that adjusts the state so as to be in a state of being in a state of being close to or close to the state. The power adjustment unit
It is connected in parallel with the wireless device via the switch unit, and consumes the differential power that is the difference between the first power and the second power that is larger than the first power consumed when the wireless device receives data. Power consumption department and
A monitor unit for monitoring the power consumed by the wireless device is provided.
The control unit
When the power measured by the monitor unit is the second power, the switch unit is switched to the non-conducting state.
The radiography apparatus according to claim 1, wherein when the electric power measured by the monitor unit is the first electric power, the switch unit is switched to a conductive state. The radiography apparatus according to claim 2, wherein the communication unit is arranged so that the wireless device and the power consumption unit are arranged close to the power supply unit. The radiography apparatus according to any one of claims 1 to 3,
A radiographic image diagnosis system including a communication unit that wirelessly receives image data of a radiographic image from the radiographic apparatus, and an image display unit having a display unit that displays a radiographic image based on the received image data.

Images