CN116548992A - Synchronous control method, system, terminal and medium for mobile DR dynamic exposure - Google Patents
Synchronous control method, system, terminal and medium for mobile DR dynamic exposure Download PDFInfo
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Abstract
The application relates to a synchronous control method, a system, a terminal and a medium for mobile DR dynamic exposure, which belong to the field of digital imaging communication, and the method comprises the following steps: judging whether a foot brake signal is received or not; if the foot brake signal is received, judging whether the mobile DR allows perspective; if perspective is allowed, a control signal is sent to a high-voltage generator of the mobile DR, so that the high-voltage generator executes the control signal and feeds back an exposure preparation completion signal; receiving an exposure preparation completion signal and generating an exposure request signal; transmitting an exposure request signal to a flat panel detector of a mobile DR according to a preset frame frequency, so that the flat panel detector receives the exposure request signal and generates an enabling exposure signal; receiving an enabling exposure signal, generating an exposure control signal according to the enabling exposure signal, enabling the high-voltage generator to output X rays, and receiving the X rays by the flat panel detector to generate a target image; and receiving and displaying the target image. The compatibility of the high-voltage generator and the flat panel detector is effectively improved.
Description
Technical Field
The present disclosure relates to the field of digital imaging communications, and in particular, to a method, a system, a terminal, and a medium for synchronous control of dynamic exposure of a mobile DR.
Background
Mobile DR (Mobile DR) is a type of digitized X-ray flat panel detector, a digital imaging device used in the medical examination field to replace traditional film. Mobile DR may be used for various applications of radiography, such as orthopedic imaging, breast imaging, abdominal imaging, and the like. In addition, mobile DR is portable, and thus is widely used in hospitals, clinics, emergency vehicles, and the like.
Dynamic synchronization of mobile DR refers to synchronization between high voltage generation X-rays and flat panel detector reception to ensure consistency of color and brightness is maintained during image processing and display. At present, the dynamic synchronization of the mobile DR needs to control the time sequence of the high-voltage generator and the flat panel detector, and a special synchronization box is adopted to realize the synchronization function.
However, due to the time sequence difference and the signal difference of the high-voltage generator and the flat panel detector, the existing synchronous box is difficult to be compatible with all the high-voltage generator and the flat panel detector, so the applicant considers that the compatibility of the high-voltage generator and the flat panel detector is not high in the current mode of realizing dynamic synchronization of the mobile DR through the synchronous box.
Disclosure of Invention
In order to effectively improve the compatibility of a high-voltage generator and a flat panel detector, the application provides a synchronous control method, a synchronous control system, a synchronous control terminal and a synchronous control medium for dynamic exposure of a mobile DR.
In a first aspect, the present application provides a synchronous control method for dynamic exposure of mobile DR, which adopts the following technical scheme:
a synchronous control method of mobile DR dynamic exposure, comprising:
judging whether a foot brake signal is received or not;
if the foot brake signal is received, judging whether the mobile DR allows perspective;
if perspective is allowed, a control signal is sent to a high-voltage generator of the mobile DR, the high-voltage generator is enabled to execute the control signal, and an exposure preparation completion signal is fed back;
receiving the exposure preparation completion signal and generating an exposure request signal;
transmitting the exposure request signal to a flat panel detector of the mobile DR according to a preset frame frequency, so that the flat panel detector receives the exposure request signal and generates an enabling exposure signal;
receiving the enabling exposure signal, generating an exposure control signal according to the enabling exposure signal, and enabling the high-voltage generator to output X rays, wherein the X rays are received by the flat panel detector and generate a target image;
and receiving and displaying the target image.
By adopting the technical scheme, the time sequence of the high-voltage generator and the panel detector can be controlled through the exposure request signal and the exposure control signal, so that the high-voltage generator and the panel detector are compatible, and the dynamic synchronization of the mobile DR is not required to be realized through the synchronization box, so that the compatibility of the high-voltage generator and the panel detector is effectively improved.
Optionally, the generating the exposure request signal includes:
acquiring configuration information of an upper computer;
and generating an exposure request signal according to the configuration information.
By adopting the technical scheme, the exposure request signal is generated based on the configuration information of the upper computer, so that the exposure request signal meets the artificial configuration requirement.
Optionally, the determining whether the mobile DR allows perspective includes:
detecting a fuselage condition based on a self-test procedure; the fuselage states include a normal state and an abnormal state;
if the state of the machine body is the normal state, detecting whether the surrounding environment meets the requirement or not based on a preset environment detection device;
and if the surrounding environment meets the requirement, judging that the mobile DR allows perspective.
By adopting the technical scheme, whether the surrounding environment meets the requirement or not is detected according to the environment detection device, and whether the mobile DR allows perspective or not is further judged, so that the normal work of the mobile DR is effectively ensured.
Optionally, the environment detection device comprises an illumination intensity sensor;
the detecting whether the surrounding environment meets the requirement or not based on the preset environment detecting device comprises the following steps:
acquiring current illumination intensity based on the illumination intensity sensor;
judging whether the current illumination intensity is larger than a preset illumination intensity threshold value or not;
and if the current illumination intensity is larger than the illumination intensity threshold, judging that the surrounding environment meets the requirements.
By adopting the technical scheme, whether the current illumination intensity is larger than the illumination intensity threshold value or not is detected according to the illumination intensity sensor, and whether the surrounding environment meets the requirements or not is further judged, so that the mobile DR is effectively prevented from working in the environment with too low illumination intensity.
Optionally, the environment detection device further comprises a GPS locator;
before determining that the surrounding environment meets the requirements, the method further comprises:
acquiring a current location of the mobile DR based on the GPS locator;
judging whether the current positioning is located in a preset safety area or not;
and if the current positioning is positioned in the safety area, executing the step of judging that the surrounding environment meets the requirement.
By adopting the technical scheme, whether the current positioning acquired by the GPS positioner is positioned in the safety area or not is judged so as to judge whether the surrounding environment meets the requirements or not, thereby effectively avoiding the mobile DR from working outside the safety area and simultaneously effectively ensuring the safety of users or patients outside the safety area.
Optionally, after receiving the enabling exposure signal and generating an exposure control signal according to the enabling exposure signal, the high voltage generator outputs X-rays, the method includes:
acquiring the brightness of the X-ray;
if the light brightness is larger than a preset light brightness threshold, weakening the light brightness through a grid, and generating a protection signal to enable the high-voltage generator to be closed.
Through adopting above-mentioned technical scheme, when light brightness is greater than light brightness threshold value, indicate that the illumination intensity of X ray is too high, cause safety risk easily, so weaken light brightness and produce the protection signal through the grid and make high voltage generator close to effectively ensure the safety of user and patient.
Optionally, after the light brightness is reduced by the grid, the method further includes:
acquiring an irradiation angle of the X-rays based on the irradiation limiter;
executing the step of generating a protection signal to turn off the high voltage generator when the irradiation angle is greater than a preset angle threshold;
and when the irradiation angle is smaller than or equal to the angle threshold, generating a protection signal, and sending out protection information to enable the flat panel detector to receive the X-rays and generate a target image.
By adopting the technical scheme, besides the safety of the illumination intensity of the X-rays, the illumination angle of the X-rays is considered, so that the safety of the mobile DR is further improved.
In a second aspect, the present application provides a synchronous control system for dynamic exposure of mobile DR, which adopts the following technical scheme:
the synchronous control system for the dynamic exposure of the mobile DR comprises a control unit, a high-voltage generator and a flat panel detector, wherein the control unit is respectively and electrically connected with the high-voltage generator and the flat panel detector;
the control unit is used for judging whether a foot brake signal is received or not;
if the foot brake signal is received, the control unit is used for judging whether the mobile DR allows perspective;
if perspective is allowed, the control unit is used for sending a control signal to the high voltage generator of the mobile DR, enabling the high voltage generator to execute the control signal and feeding back an exposure preparation completion signal;
the control unit is used for receiving the exposure preparation completion signal and generating an exposure request signal;
the control unit is used for sending the exposure request signal to the flat panel detector of the mobile DR according to a preset frame frequency, so that the flat panel detector receives the exposure request signal and generates an enabling exposure signal;
the control unit is used for receiving the enabling exposure signal and generating an exposure control signal according to the enabling exposure signal so that the high-voltage generator outputs X rays, and the X rays are received by the flat panel detector and generate a target image;
the control unit is used for receiving and displaying the target image.
By adopting the technical scheme, the control unit can control the time sequence of the high-voltage generator and the panel detector through the exposure request signal and the exposure control signal, so that the high-voltage generator and the panel detector are compatible, and the dynamic synchronization of the mobile DR is not required to be realized through the synchronization box, thereby effectively improving the compatibility of the high-voltage generator and the panel detector.
In a third aspect, the present application provides an intelligent terminal that adopts the following technical scheme:
an intelligent terminal comprises a memory, a processor and a computer program stored in the memory and capable of running on the processor, wherein the processor adopts the synchronous control method of mobile DR dynamic exposure when loading and executing the computer program.
By adopting the technical scheme, the computer program is generated by the synchronous control method of the mobile DR dynamic exposure and is stored in the memory to be loaded and executed by the processor, so that the intelligent terminal is manufactured according to the memory and the processor, and the intelligent terminal is convenient to use.
In a fourth aspect, the present application provides a computer readable storage medium, which adopts the following technical scheme:
a computer readable storage medium having a computer program stored therein, the computer program when loaded and executed by a processor employing the above-described synchronous control method of mobile DR dynamic exposure.
By adopting the technical scheme, the computer program is generated by the synchronous control method of the mobile DR dynamic exposure and is stored in the computer readable storage medium to be loaded and executed by the processor, and the computer program is convenient to read and store by the computer readable storage medium.
In summary, the present application has at least one of the following beneficial technical effects:
1. the time sequence of the high-voltage generator and the panel detector can be controlled through the exposure request signal and the exposure control signal, so that the high-voltage generator and the panel detector are compatible, and the dynamic synchronization of the mobile DR is not required to be realized through the synchronization box, so that the compatibility of the high-voltage generator and the panel detector is effectively improved.
2. According to the environment detection device, whether the surrounding environment meets the requirement is detected, and whether the mobile DR allows perspective is further judged, so that the normal operation of the mobile DR is effectively ensured.
3. When the light brightness is larger than the light brightness threshold, the illumination intensity of the X-ray is too high, and safety risks are easily caused, so that the light brightness is weakened through the grid, and a protection signal is generated to enable the high-voltage generator to be closed, and the safety of a user and a patient is effectively guaranteed.
Drawings
Fig. 1 is a flow chart of one implementation of a synchronous control method for dynamic exposure of mobile DR according to an embodiment of the present application.
FIG. 2 is a flow chart of one of the synchronous control methods of dynamic exposure of mobile DR according to the embodiments of the present application.
FIG. 3 is a flow chart of one implementation of a synchronous control method for dynamic exposure of mobile DR according to the embodiments of the present application.
Fig. 4 is a flowchart of one implementation of a synchronous control method for dynamic exposure of mobile DR according to an embodiment of the present application.
FIG. 5 is a flow chart of one of the synchronous control methods of the dynamic exposure of the mobile DR according to the embodiments of the present application.
FIG. 6 is a flow chart of one of the synchronous control methods of the dynamic exposure of the mobile DR according to the embodiments of the present application.
FIG. 7 is a flow chart of one of the synchronous control methods of the dynamic exposure of the mobile DR according to the embodiments of the present application.
Detailed Description
The present application is described in further detail below in conjunction with figures 1 to 7.
The embodiment of the application discloses a synchronous control method for dynamic exposure of a mobile DR.
Referring to fig. 1, a synchronous control method of mobile DR dynamic exposure includes the steps of:
s101, judging whether a foot brake signal is received.
The mobile DR is provided with a foot brake. Foot brakes are a type of mechanical brake that, by stepping on a foot pedal or pedal lever, closes a switch inside the brake mechanism for generating a perspective request. The foot brake signal is a signal sent by the mobile DR when the person steps on the foot pedal, and indicates that the current mobile DR generates a perspective request.
S102, if the foot brake signal is received, judging whether the mobile DR allows perspective.
If the foot brake signal is received, at this time, it is determined whether the mobile DR allows perspective.
The perspective of the mobile DR refers to performing an image perspective examination using a digital radiological apparatus. The image fluoroscopy can acquire images immediately after the development process, so that an inspector can accurately evaluate the diseases and help doctors to make more accurate diagnoses.
Since the mobile DR perspective needs to ensure that the mobile DR body has no faults, that is, the normal side of the mobile DR body can allow perspective, whether the mobile DR hardware part has faults or not can be judged so as to judge whether the mobile DR allows perspective or not. Specifically, the current sensor, the voltage sensor and the like arranged by the mobile DR can detect the current and the voltage of each part of the machine body, and judge whether the part of the mobile DR is normal according to whether the current and the voltage are normal.
S103, if perspective is allowed, a control signal is sent to the high voltage generator of the mobile DR, the control signal is executed by the high voltage generator, and an exposure preparation completion signal is fed back.
If the movement DR allows perspective, a control signal is sent to a high voltage generator of the movement DR, which is one of the components of the movement DR, the high voltage generator being used to generate high voltage and high energy X-rays. In this embodiment, the control signal is a PLS signal, which is a control signal sent to the high voltage generator for triggering the high voltage generator to start, and performing digital radiological examination. When the foot brake signal of the mobile DR is received and the equipment is confirmed to be capable of performing perspective, a PLS signal is sent to the high voltage generator to inform the high voltage generator to start working, so that the high voltage generator generates high voltage for providing power required by the mobile DR. Typically, after the PLS signal is received by the high voltage generator, the anode driving and filament heating processes are performed.
The exposure preparation completion signal is referred to as a BUCKY_STA signal in this embodiment, which is used to indicate that the high voltage generator is ready at this time, and exposure can be performed.
S104, receiving the exposure preparation completion signal and generating an exposure request signal.
Upon receiving the exposure preparation completion signal, an exposure request signal is generated. IN this embodiment, the exposure request signal refers to an fpd_sync_in signal, and the exposure request signal is a signal generated by the current execution subject according to the configuration requirement of the host computer. The configuration requirement of the upper computer is set manually. The configuration requirements of the upper computer can be frame frequency setting, exposure time and the like, such as setting parameters of kV, mA, ms/mAS and the like.
S105, sending an exposure request signal to the flat panel detector of the mobile DR according to a preset frame frequency, enabling the flat panel detector to receive the exposure request signal and generating an enabling exposure signal.
The frame rate is preset, and the frame rate represents the number of signal frames transmitted in a unit time. The flat panel detector is a component of the mobile DR for acquiring digital images, and is a digital image acquisition device for replacing traditional films in digital radiation technology. The flat panel detector receives the exposure request signal and generates an enable exposure signal, in this embodiment the enable exposure signal is referred to as the sync_en signal, which indicates that the flat panel detector is currently ready for exposure, enables exposure, and is sent by the flat panel detector to the current execution subject.
After the flat panel detector receives the exposure request signal, it generates an internal signal framereq_in signal for performing a flush process on the previously received signal, and generates an enable exposure signal after the flush is completed.
S106, receiving the enabling exposure signal, generating an exposure control signal according to the enabling exposure signal, enabling the high-voltage generator to output X-rays, and enabling the X-rays to be received by the flat panel detector to generate a target image.
After receiving the enabling exposure signal, the current execution body generates an exposure control signal, which is referred to as a BUCKY_RDY signal in this embodiment, for indicating that the control unit receives the enabling of the flat panel detector, generates a control signal meeting the requirement, and enables the high voltage generator to output X-rays. Specifically, the high voltage generator outputs X-rays according to the frequency of the pf_clk signal, which is a pulse perspective synchronous frame frequency signal, generated by the control unit according to manually set parameters. The flat panel detector receives the X-rays to generate an image of the object.
S107, receiving and displaying the target image.
After the flat panel detector generates the target image, the current execution subject receives and displays the target image.
The implementation principle of the embodiment is as follows: the time sequence of the high-voltage generator and the panel detector can be controlled through the exposure request signal and the exposure control signal, so that the high-voltage generator and the panel detector are compatible, and the dynamic synchronization of the mobile DR is not required to be realized through the synchronization box, so that the compatibility of the high-voltage generator and the panel detector is effectively improved.
A detailed description will be given by way of fig. 2 based on one of the implementations of the embodiment shown in fig. 1.
Referring to fig. 2, generating an exposure request signal includes the steps of:
s201, acquiring configuration information of an upper computer.
The configuration information of the upper computer is information manually set by the upper computer, and the configuration information comprises manually set exposure time, exposure times, signal frame frequency and the like.
S202, generating an exposure request signal according to the configuration information.
In this embodiment, after the current execution body obtains the configuration information, the current execution body calculates and determines the input configuration parameters according to a preset algorithm program, and outputs an exposure request signal. For example, if the exposure time required by the upper computer is 10 milliseconds, the processor calculates a corresponding control signal to ensure that the exposure time of the high voltage generator is 10 milliseconds.
According to the synchronous control method for mobile DR dynamic exposure, the exposure request signal is generated based on the configuration information of the upper computer, so that the exposure request signal meets the artificial configuration requirement.
A detailed description will be given by way of fig. 3 based on one of the implementations of the embodiment shown in fig. 1.
Referring to fig. 3, determining whether the mobile DR allows perspective includes the steps of:
s301, detecting a state of the machine body based on a self-checking program; the fuselage states include normal states and abnormal states.
In this embodiment, the mobile DR performs self-checking before starting, that is, it checks whether the state of the mobile DR body is normal according to a preset self-checking procedure, and if the state is normal, the mobile DR allows perspective. Specifically, the mobile DR is provided with a sensor for detecting the state of the machine body, including a current sensor, a voltage sensor, etc., and the sensor is used for detecting the running condition of the machine body of the mobile DR, if the running condition of the machine body is abnormal, the running condition of the machine body is detected by a self-checking program, and then the state of the machine body can be judged to be a normal state or an abnormal state.
S302, if the state of the machine body is normal, detecting whether the surrounding environment meets the requirement or not based on a preset environment detection device.
If the state of the machine body is in a normal state, the mobile DR is indicated to run normally, and at the moment, the environment detection device is used for detecting the illumination condition of the mobile DR based on whether the surrounding environment meets the requirement or not according to the artificial preset environment. Specifically, the environment detection device may be a photoresistor, a photoelectric sensor, a laser photoelectric sensor, etc. for detecting the illumination intensity of the environment where the mobile DR is located. If the illumination intensity of the surrounding environment where the mobile DR is located is larger than a preset illumination intensity threshold value, the surrounding environment meets the requirement.
S303, if the surrounding environment meets the requirement, judging that the mobile DR allows perspective.
If the surrounding environment of the mobile DR detected by the environment detection device meets the requirement, the mobile DR is judged to allow perspective.
According to the synchronous control method for dynamic exposure of the mobile DR, whether the mobile DR allows perspective is judged according to whether the surrounding environment meets the requirement or not by the environment detection device, and therefore normal operation of the mobile DR is effectively ensured.
Based on one implementation manner of the embodiment shown in fig. 1, the environment detection device includes an illumination intensity sensor, and referring to fig. 4, based on a preset environment detection device, whether the surrounding environment meets the requirement or not is detected, including the following steps:
s401, acquiring the current illumination intensity based on the illumination intensity sensor.
The illumination intensity sensor can be a photoresistor, a photoelectric sensor, a laser photoelectric sensor and the like and is used for detecting the current illumination intensity.
S402, judging whether the current illumination intensity is larger than a preset illumination intensity threshold value.
S403, if the current illumination intensity is larger than the illumination intensity threshold value, judging that the surrounding environment meets the requirements.
If the current illumination intensity is larger than the illumination intensity threshold, indicating that the current mobile DR is in an environment meeting the illumination intensity requirement, and judging that the surrounding environment meets the requirement at the moment;
if the current illumination intensity is smaller than or equal to the illumination intensity threshold, the current mobile DR environment does not meet the illumination intensity requirement, and the surrounding environment is judged to be unsatisfactory.
According to the synchronous control method for the dynamic exposure of the mobile DR, whether the current illumination intensity is larger than the illumination intensity threshold value or not is detected according to the illumination intensity sensor, and whether the surrounding environment meets the requirements or not is further judged, so that the mobile DR is effectively prevented from working in the environment with too low illumination intensity.
Based on one implementation of the embodiment shown in fig. 1, the environment detection device further includes a GPS locator, and referring to fig. 5, before determining that the surrounding environment meets the requirements, the method further includes the following steps:
s501, acquiring the current positioning of the mobile DR based on a GPS (global positioning system) locator.
A GPS locator is a device that utilizes global positioning system technology to achieve position location and tracking. The GPS locator may track or monitor the target to be located by connecting to a satellite network or cellular network so that the current location of the mobile DR may be obtained by the GPS locator.
S502, judging whether the current positioning is located in a preset safety area.
The safety area is preset, and because the mobile DR needs to be used in a specific area, such as a severe operating room, an ambulance, etc., in order to avoid the situation that the mobile DR is opened by mistake in other areas, the safety area is set, if the mobile DR is currently located in the safety area, it indicates that the mobile DR can be opened normally at this time, and if the mobile DR is not currently located in the safety area, it indicates that the mobile DR can cause safety risk to a user or other users at this time, and the mobile DR cannot be opened.
S503, if the current positioning is located in the safety area, executing the step of judging that the surrounding environment meets the requirement.
If the current positioning is located in the safety area, the surrounding environment is judged to meet the requirements.
According to the synchronous control method for the dynamic exposure of the mobile DR, whether the current positioning acquired by the GPS positioner is located in the safety area or not is judged, and whether the surrounding environment meets the requirements or not is further judged, so that the mobile DR is effectively prevented from working outside the safety area, and meanwhile the safety of users or patients outside the safety area is effectively ensured.
A detailed description will be given by way of fig. 6 based on one of the implementations of the embodiment shown in fig. 1.
Referring to fig. 6, after receiving an enable exposure signal and generating an exposure control signal according to the enable exposure signal, causing the high voltage generator to output X-rays, comprising the steps of:
s601, acquiring the brightness of the X-ray.
In a first embodiment, the brightness of the X-rays is obtained by an illumination limiter, which is typically deployed on the output port of a laser or beam device, consisting of one sensor and one actuator. The sensor is used for detecting illumination intensity, and the actuator is used for executing actions of weakening the illumination intensity of X-rays or cutting off the X-rays, so that the brightness of the X-rays can be obtained through the sensor of the irradiation limiter. The brightness of the light is detected by an illumination intensity sensor.
In the second embodiment, the light brightness of the X-rays can be obtained by receiving the gray value of the target image generated by the X-rays by the flat panel detector. Specifically, the brightness of the X-ray is obtained through the gray value of the X-ray image received by the flat panel detector, and the method comprises the following steps: 1. the flat panel detector converts the X-rays into electrical signals and into digital signals. 2. The digital signal contains the gray value of each pixel point, and the gray value is in direct proportion to the brightness of the X-ray. 3. And (3) analyzing the gray value of each pixel point in the target image to calculate the brightness of the X-ray. The conversion of the gray values into the light brightness of the X-rays can be achieved by means of a calibration curve.
The calibration curve is a curve for comparing and matching the gray value in the digital image with a corresponding physical quantity, such as the brightness of the X-ray. The method comprises the steps of measuring and analyzing a target image under known physical quantity to obtain a group of gray value and corresponding data of the physical quantity, and then obtaining the target image by a fitting curve or interpolation method. The calibration curve may be used to convert gray values in the digital image into physical quantities to enable quantitative analysis of the digital image.
The calibration curve generally consists of two parts, namely, the relation between the gray value and the absorption coefficient of the target substance and the relation between the absorption coefficient of the target substance and the light brightness of the X-rays. In the calibration curve, the gray values are generally represented as abscissa, and the physical quantity, i.e., the brightness of light, is represented as ordinate.
S602, if the brightness of the light is larger than a preset brightness threshold, weakening the brightness of the light through the grid, and generating a protection signal to enable the high-voltage generator to be turned off.
If the brightness of the light is greater than the illumination intensity threshold, the brightness of the light of the X-ray may cause safety risk, and at the moment, the brightness of the light is weakened through an actuator of the illumination limiter, and a protection signal is generated, so that the high-voltage generator is closed.
In moving DR, grids are typically used as X-ray optics for filtering out X-rays of different energy ranges for specific imaging purposes. The grid can separate out X-rays of different energies, thereby improving imaging quality and reducing dose.
Besides weakening the brightness of the light by using the grid, the brightness of the light can be regulated according to the gray value of the target image, for example, if the gray value is greater than a preset gray threshold, the brightness of the light is regulated to be smaller than a preset value, and the description is omitted.
According to the synchronous control method for the mobile DR dynamic exposure, when the light brightness is larger than the light brightness threshold, the fact that the illumination intensity of the X-rays is too high is indicated, and safety risks are easily caused, so that the light brightness is weakened through the grid and a protection signal is generated to enable the high-voltage generator to be closed, and safety of a user and a patient is effectively guaranteed.
A detailed description will be given by way of fig. 7 based on one of the implementations of the embodiment shown in fig. 1.
Referring to fig. 7, after weakening the light brightness by irradiating the stopper, the method further comprises the steps of:
s701, acquiring the irradiation angle of the X-rays based on the irradiation limiter.
The sensor of the irradiation limiter can also sense the direction of X rays, so that the irradiation angle of the X rays can be obtained through the irradiation limiter; the actuator of the irradiation limiter is used for limiting the irradiation range of the X-rays so as to ensure that the operator and the body of the patient are not subjected to excessive radiation.
S702, executing the step of generating a protection signal to close the high voltage generator when the irradiation angle is larger than a preset angle threshold.
When the X-ray angle exceeds the set safety angle range, namely the irradiation angle is larger than the preset angle threshold value, a protection signal is generated, so that the high-voltage generator is closed.
S703, when the irradiation angle is smaller than or equal to the angle threshold, a protection signal is generated, protection information is sent out, and the flat panel detector receives X-rays and generates a target image.
When the irradiation angle is smaller than or equal to the angle threshold, the safety risk caused at the moment is lower, the current execution main body generates a protection signal, and sends protection information for prompting a user or a user to pay attention to protection, and the flat panel detector receives X-rays and generates a target image.
The synchronous control method for dynamic exposure of mobile DR provided in this embodiment further improves the safety of mobile DR by considering the irradiation angle of X-rays in addition to the safety of the irradiation intensity of X-rays.
The embodiment of the application also discloses a synchronous control system for dynamic exposure of the mobile DR.
The synchronous control system for the dynamic exposure of the mobile DR comprises a control unit, a high-voltage generator and a flat panel detector, wherein the control unit is respectively connected with the high-voltage generator and the flat panel detector through wires;
the control unit is used for judging whether a foot brake signal is received or not;
if the foot brake signal is received, the control unit is used for judging whether the mobile DR allows perspective;
if perspective is allowed, the control unit is used for sending a control signal to the high-voltage generator of the mobile DR, enabling the high-voltage generator to execute the control signal and feeding back an exposure preparation completion signal;
the control unit is used for receiving an exposure preparation completion signal and generating an exposure request signal;
the control unit is used for sending an exposure request signal to the flat panel detector of the mobile DR according to a preset frame frequency, so that the flat panel detector receives the exposure request signal and generates an enabling exposure signal;
the control unit is used for receiving the enabling exposure signal and generating an exposure control signal according to the enabling exposure signal, so that the high-voltage generator outputs X rays, and the X rays are received by the flat panel detector and a target image is generated;
the control unit is used for receiving and displaying the target image.
The implementation principle of the synchronous control system for mobile DR dynamic exposure in the embodiment of the application is as follows: the control unit can control the time sequence of the high-voltage generator and the panel detector through the exposure request signal and the exposure control signal, so that the high-voltage generator and the panel detector are compatible, and the dynamic synchronization of the mobile DR is not required to be realized through the synchronization box, so that the compatibility of the high-voltage generator and the panel detector is effectively improved.
The embodiment of the application also discloses an intelligent terminal which comprises a memory, a processor and a computer program which is stored in the memory and can run on the processor, wherein the synchronous control method of the mobile DR dynamic exposure in the embodiment is adopted when the processor executes the computer program.
The intelligent terminal may adopt a computer device such as a desktop computer, a notebook computer or a cloud server, and the intelligent terminal includes, but is not limited to, a processor and a memory, for example, the intelligent terminal may further include an input/output device, a network access device, a bus, and the like.
The processor may be a Central Processing Unit (CPU), or of course, according to actual use, other general purpose processors, digital Signal Processors (DSP), application Specific Integrated Circuits (ASIC), ready-made programmable gate arrays (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc., and the general purpose processor may be a microprocessor or any conventional processor, etc., which is not limited in this application.
The memory may be an internal storage unit of the intelligent terminal, for example, a hard disk or a memory of the intelligent terminal, or may be an external storage device of the intelligent terminal, for example, a plug-in hard disk, a Smart Memory Card (SMC), a secure digital card (SD) or a flash memory card (FC) provided on the intelligent terminal, or the like, and may be a combination of an internal storage unit of the intelligent terminal and an external storage device, where the memory is used to store a computer program and other programs and data required by the intelligent terminal, and the memory may be used to temporarily store data that has been output or is to be output, which is not limited in this application.
The synchronous control method of the mobile DR dynamic exposure in the embodiment is stored in the memory of the intelligent terminal through the intelligent terminal, and is loaded and executed on the processor of the intelligent terminal, so that the synchronous control method is convenient to use.
The embodiment of the application also discloses a computer readable storage medium, and the computer readable storage medium stores a computer program, wherein the computer program is executed by a processor, and the synchronous control method of the dynamic exposure of the mobile DR in the embodiment is adopted.
The computer program may be stored in a computer readable medium, where the computer program includes computer program code, where the computer program code may be in a source code form, an object code form, an executable file form, or some middleware form, etc., and the computer readable medium includes any entity or device capable of carrying the computer program code, a recording medium, a usb disk, a removable hard disk, a magnetic disk, an optical disk, a computer memory, a read-only memory (ROM), a Random Access Memory (RAM), an electrical carrier signal, a telecommunication signal, a software distribution medium, etc., where the computer readable medium includes, but is not limited to, the above components.
The method for synchronously controlling the dynamic exposure of the mobile DR in the embodiment is stored in the computer readable storage medium through the computer readable storage medium, and is loaded and executed on a processor, so as to facilitate the storage and application of the method.
The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.
Claims (10)
1. A synchronous control method for dynamic exposure of a mobile DR, comprising:
judging whether a foot brake signal is received or not;
if the foot brake signal is received, judging whether the mobile DR allows perspective;
if perspective is allowed, a control signal is sent to a high-voltage generator of the mobile DR, the high-voltage generator is enabled to execute the control signal, and an exposure preparation completion signal is fed back;
receiving the exposure preparation completion signal and generating an exposure request signal;
transmitting the exposure request signal to a flat panel detector of the mobile DR according to a preset frame frequency, so that the flat panel detector receives the exposure request signal and generates an enabling exposure signal;
receiving the enabling exposure signal, generating an exposure control signal according to the enabling exposure signal, and enabling the high-voltage generator to output X rays, wherein the X rays are received by the flat panel detector and generate a target image;
and receiving and displaying the target image.
2. The method for synchronously controlling dynamic exposure of a mobile DR according to claim 1, wherein said generating an exposure request signal comprises:
acquiring configuration information of an upper computer;
and generating an exposure request signal according to the configuration information.
3. The method for synchronously controlling dynamic exposure of a mobile DR according to claim 1, wherein said determining whether the mobile DR allows perspective comprises:
detecting a fuselage condition based on a self-test procedure; the fuselage states include a normal state and an abnormal state;
if the state of the machine body is the normal state, detecting whether the surrounding environment meets the requirement or not based on a preset environment detection device;
and if the surrounding environment meets the requirement, judging that the mobile DR allows perspective.
4. A method for synchronous control of mobile DR dynamic exposure according to claim 3, wherein said environment detecting means comprises an illumination intensity sensor;
the detecting whether the surrounding environment meets the requirement or not based on the preset environment detecting device comprises the following steps:
acquiring current illumination intensity based on the illumination intensity sensor;
judging whether the current illumination intensity is larger than a preset illumination intensity threshold value or not;
and if the current illumination intensity is larger than the illumination intensity threshold, judging that the surrounding environment meets the requirements.
5. The method for synchronous control of mobile DR dynamic exposure according to claim 4, wherein the environment detection apparatus further comprises a GPS locator;
before determining that the surrounding environment meets the requirements, the method further comprises:
acquiring a current location of the mobile DR based on the GPS locator;
judging whether the current positioning is located in a preset safety area or not;
and if the current positioning is positioned in the safety area, executing the step of judging that the surrounding environment meets the requirement.
6. The synchronous control method of mobile DR dynamic exposure according to claim 1, wherein after said receiving said enabling exposure signal and generating an exposure control signal according to said enabling exposure signal, causing said high voltage generator to output X-rays, comprising:
acquiring the brightness of the X-ray;
if the light brightness is larger than a preset light brightness threshold, weakening the light brightness through a grid, and generating a protection signal to enable the high-voltage generator to be closed.
7. The method for synchronous control of dynamic exposure of mobile DR according to claim 6, wherein said environment detecting means further comprises an irradiation limiter;
after the light brightness is reduced by the grid, further comprising:
acquiring an irradiation angle of the X-rays based on the irradiation limiter;
executing the step of generating a protection signal to turn off the high voltage generator when the irradiation angle is greater than a preset angle threshold;
and when the irradiation angle is smaller than or equal to the angle threshold, generating a protection signal, and sending out protection information to enable the flat panel detector to receive the X-rays and generate a target image.
8. A synchronous control system for dynamic exposure of a mobile DR, characterized in that: the device comprises a control unit, a high-voltage generator and a flat panel detector, wherein the control unit is respectively and electrically connected with the high-voltage generator and the flat panel detector;
the control unit is used for judging whether a foot brake signal is received or not;
if the foot brake signal is received, the control unit is used for judging whether the mobile DR allows perspective;
if perspective is allowed, the control unit is used for sending a control signal to the high voltage generator of the mobile DR, enabling the high voltage generator to execute the control signal and feeding back an exposure preparation completion signal;
the control unit is used for receiving the exposure preparation completion signal and generating an exposure request signal;
the control unit is used for sending the exposure request signal to the flat panel detector of the mobile DR according to a preset frame frequency, so that the flat panel detector receives the exposure request signal and generates an enabling exposure signal;
the control unit is used for receiving the enabling exposure signal and generating an exposure control signal according to the enabling exposure signal so that the high-voltage generator outputs X rays, and the X rays are received by the flat panel detector and generate a target image;
the control unit is used for receiving and displaying the target image.
9. A smart terminal comprising a memory, a processor and a computer program stored in the memory and capable of running on the processor, characterized in that the method according to any one of claims 1 to 7 is used when the computer program is loaded and executed by the processor.
10. A computer readable storage medium having a computer program stored therein, characterized in that the method of any of claims 1 to 7 is employed when the computer program is loaded and executed by a processor.
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