KR102528057B1 - portable inspection device for integrating and operating a digital radiation transmission test and a method of operating the same - Google Patents

Abstract

A portable digital radiography integrated operating device according to an embodiment of the present invention includes a carrying case; a radiation source irradiator that is detachable from the carrying case and radiates X-rays to a target point of the test object for a preset time; a radiation detection unit provided in the carrying case and detecting X-rays transmitted through the inspection object; a radiation image processing unit provided in the carrying case and generating a transmission image of the inspection object based on X-rays transmitted through the inspection object; a radiation detection unit provided in the carrying case and measuring a level of radiation of the test object; a display unit provided in the carrying case and displaying a transmission image of the test object; and a radioactivity value display unit provided in the carrying case and displaying the radioactivity level.

Description

Portable digital radiographic inspection integrating operating device and operating method thereof {portable inspection device for integrating and operating a digital radiation transmission test and a method of operating the same}

The present invention relates to a portable digital radiography integrated operating device and an operating method thereof.

In general, radiographic inspection is one of the non-destructive inspection methods that use a radiation irradiator to inspect the welding state of various structures such as city gas pipes or steel pipes or the internal mechanical defects of construction installations through radiography. A plurality of long rectangular films, typically 3 to 7 inches in length and 10 to 17 inches in width, are attached to the outer surface of the object, and radiation is irradiated to the object with a radiation irradiator, and then each irradiated film is mixed with a normal developer. It is immersed in a fixer for chemical treatment, immersed in water for a certain period of time to wash off chemicals such as developer, and then dried and read to determine the welding state or defect of the object to be inspected and reconstruct or repair it.

Accordingly, the present invention removes the conventional radiation film by applying a digital sensor, a scanning system, and other technologies, and radiation image detectors absorb transmitted X-rays to generate an electrical signal as a result of a physical reaction, A portable digital radiography integrated operating device capable of reading and digitizing together with location information and finally constructing a completed radiation image using an image processing algorithm and an operating method thereof are disclosed.

Korean Registered Patent Publication No. 0975417 "Digital radiographic inspection system and method" (published date: 2010.08.11.)

The problem to be solved by the present invention is to provide a portable digital radiographic inspection integrated operating device and its operating method that can solve the conventional problems.

A portable digital radiographic examination integrated operation device according to an embodiment of the present invention for solving the above problems is a carrying case; a radiation source irradiator that is detachable from the carrying case and radiates X-rays to a target point of the test object for a preset time; a radiation detection unit provided in the carrying case and detecting X-rays transmitted through the inspection object; a radiation image processing unit provided in the carrying case and generating a transmission image of the inspection object based on X-rays transmitted through the inspection object; a radiation detection unit provided in the carrying case and measuring a level of radiation of the test object; an alarm/warning unit provided in the carrying case and outputting an alarm and a warning color when the intensity of the transmitted X-rays and the level of radioactivity reach a reference value harmful to the human body; a transmission image display unit provided in the carrying case and displaying a radiographic image of the inspection object; and a radioactivity value display unit provided within the carrying case to display the level of radiation, and further comprising a threshold value setting unit configured to set an irradiation intensity and an irradiation time of the radiation source, wherein the threshold value setting unit sets a set maximum value of the radiation intensity of the radiation source. It is set as a reference value harmful to the human body, and the radiation image processing unit generates a radiation image by quantizing the incident X-ray energy at 14 bits per pixel into an electrical signal in step 16383, and the pixel size of the radiation image is 168um, and is obtained The size of the radiation image is 2560x2560 pixels, characterized in that it is an area of 43x43cm.

In order to solve the above problems, in an operating method of a portable digital radiographic inspection integrated operating device according to an embodiment of the present invention, a radiation source irradiator drawn out from a portable case is moved to a target point of a test object to inspect X-rays of a preset intensity. Step of irradiating the target point of the sieve; detecting X-rays transmitted through the test object by a radiation detector in the carrying case; When the X-rays are detected, detecting the radiation level of the test object by a radiation detection unit; generating a radiographic image in which the distance between the radiation source emitter and the test object and the X-ray irradiation intensity are displayed based on the transmitted X-rays in a radiation image processing unit; and displaying the radiographic image generated in the transmission image display unit and displaying the radioactivity level in the numeric display unit, and when the intensity of the transmitted X-rays and the radioactivity level reach a reference value for harm to the human body, an alarm and warning color are displayed. outputting; and prior to the irradiating step, further comprising setting an irradiation intensity and an irradiation time of the radiation source, wherein the setting step is a step of setting a maximum value of the irradiation intensity of the radiation source to be less than a reference value harmful to the human body, and the radiation image processing unit X-ray energy incident at 14 bits per pixel is quantized into electrical signals of 16383 steps to generate a radiation image, the size of a pixel of the radiation image is 168um, and the size of the obtained radiation image is 2560x2560 pixels, an area of 43x43cm characterized by

Therefore, using the portable digital radiographic examination integrated operation device according to an embodiment of the present invention, it is possible to conveniently detect the radiographic image and radioactivity level of the test object in a narrow space, and at the same time, transmit the transmitted radiation image in the field. It has the advantage of being verifiable.

In addition, when the measured radiation intensity and radiation levels reach the standard value even during the work of detecting the radiation and radioactivity levels of the inspected object in real time, alarms and warning lights to warn of work hazards can be provided audibly and visually, This has the advantage of being able to perform safer operations.

In addition, by applying the Digital Radiography (DR) method, it is possible to realize an image by converting X-rays into electrical signals through a direct detection process. There are advantages of being able to overcome the limitations of , being able to quickly check a radiation image, and being able to store and transmit radiation images of a plurality of inspection objects to an external terminal using an internal memory.

1 is an actual image of a portable digital radiographic examination integrated operating device according to an embodiment of the present invention.
FIG. 2 is an electronic block diagram of the portable digital radiography integrated operating device shown in FIG. 1 .
3 is an exemplary view showing an experimental environment in which a radiographic image of a steel pipe is taken using the portable digital radiographic inspection integrated operating device shown in FIG. 1 .
FIG. 4 is an exemplary diagram of radiographic image data taken in the experimental environment shown in FIG. 3 .
5 is a flowchart illustrating an operating method of a portable digital radiographic examination integrated operating apparatus according to an embodiment of the present invention.

Hereinafter, embodiments of the present specification will be described with reference to the accompanying drawings. However, it should be understood that the technology described herein is not limited to specific embodiments, and includes various modifications, equivalents, and/or alternatives of the embodiments herein. . In connection with the description of the drawings, like reference numerals may be used for like elements. In this specification, expressions such as “has,” “can have,” “includes,” or “can include” indicate the existence of a corresponding feature (eg, numerical value, function, operation, or component such as a part). , which does not preclude the existence of additional features.

In this specification, expressions such as “A or B,” “at least one of A and/and B,” or “one or more of A or/and B” may include all possible combinations of the items listed together. . For example, “A or B,” “at least one of A and B,” or “at least one of A or B” (1) includes at least one A, (2) includes at least one B, Or (3) may refer to all cases including at least one A and at least one B.

Expressions such as "first," "second," "first," or "second," as used herein, may modify various elements regardless of order and/or importance, and may refer to one element as It is used only to distinguish it from other components and does not limit the corresponding components. For example, a first user device and a second user device may represent different user devices regardless of order or importance. For example, a first element may be termed a second element without departing from the scope of rights described herein, and similarly, the second element may also be renamed to the first element.

A component (e.g., a first component) is "(operatively or communicatively) coupled with/to" another component (e.g., a second component); When referred to as "connected to", it should be understood that the certain component may be directly connected to the other component or connected through another component (eg, a third component). On the other hand, when an element (eg, a first element) is referred to as being “directly connected” or “directly connected” to another element (eg, a second element), the element and the above It may be understood that other components (eg, a third component) do not exist between the other components.

As used herein, the expression “configured (or configured) to” means, depending on the circumstances, for example, “suitable for,” “having the capacity to” ," "designed to," "adapted to," "made to," or "capable of." The term "configured (or set) to" may not necessarily mean only "specifically designed to" hardware. Instead, in some contexts, the phrase "device configured to" may mean that the device is "capable of" in conjunction with other devices or components.

For example, the phrase "a processor configured (or configured) to perform A, B, and C" may include a dedicated processor (eg, embedded processor) to perform the operation, or by executing one or more software programs stored in a memory device. , may mean a general-purpose processor (eg, CPU or application processor) capable of performing corresponding operations.

Terms used in this specification are only used to describe a specific embodiment, and may not be intended to limit the scope of other embodiments. Singular expressions may include plural expressions unless the context clearly dictates otherwise. Terms used herein, including technical or scientific terms, may have the same meaning as commonly understood by one of ordinary skill in the art described herein. Among the terms used in this specification, terms defined in a general dictionary may be interpreted as having the same or similar meaning as the meaning in the context of the related art, and unless explicitly defined in the present specification, an ideal or excessively formal meaning. not be interpreted as In some cases, even terms defined in this specification cannot be interpreted to exclude embodiments in this specification.

Hereinafter, based on the accompanying drawings, a portable digital radiographic examination integrated operating device and an operating method thereof according to an embodiment of the present invention will be described in more detail.

FIG. 1 is an actual image of a portable digital radiographic examination integrated operating device according to an embodiment of the present invention, FIG. 2 is an electronic block diagram of the portable digital radiographic examination integrated operating device shown in FIG. 1, and FIG. 1 is an exemplary view showing an experimental environment in which a radiographic image of a steel pipe is photographed using the portable digital radiographic inspection integrated operating device, and FIG. 4 is an exemplary diagram of radiographic image data taken in the experimental environment shown in FIG. am..

First, as shown in FIG. 1, the portable digital radiography integrated operating device 100 according to an embodiment of the present invention includes a carrying case 110, a radiation source irradiator 120, a radiation source detector 130, and a radiation image. It includes a processing unit 140, a radioactivity measurement unit 150, a transmission image display unit 160, and a radioactivity level display unit 170.

The portable case 110 is manufactured in a structure in which an upper case and a lower case are opened through a folding member, and the upper case C1 includes a space for embedding the transmission image display unit 160 described above.

In addition, the lower case C2 includes a space for embedding the radiation source irradiator 120, the radiation source detector 130, the radiation image processing unit 140, the radioactivity measuring unit 150, and the numerical display unit 170.

In addition, the lower case C2 may further include an input/output device, and the above-described input/output device may include various expansion terminals such as an electronic (touch type) or mechanical keyboard, a USB port, and an I/O port.

The radiation source irradiator 120 is detachable from the carrying case, is drawn to a target point of the test object, and irradiates radiation (eg, X-rays, Ir-192, Co-60, etc.) for a predetermined time, and is configured to irradiate the lower case. Power is supplied from the power supply unit provided in (C2).

Next, the radiation detection unit 130 is provided in the lower case C2 to detect X-rays transmitted through a test object (steel pipe, etc.), and the radiation detection unit 130 uses a plurality of radiation detection sensors. can include

The radiation detection unit 130 of the present invention directly detects an electrical signal generated by radiation passing through a test object.

In addition, the radiation detection unit 130 includes a photoconductor that generates electron hole pairs when radiation is irradiated.

For reference, a material with high generation of electron hole pairs by photon energy of radiation is used as a photoconductor. In the case of a direct type detector, for example, a-Se, CdTe, CdZnTe, etc. are used as photoconductor materials. .

Among them, a material that has recently attracted attention is amorphous selenium. Amorphous selenium is a material with high generation of electron hole pairs by photon energy of radiation while maintaining physical properties when maintaining a completely amorphous state. When amorphous selenium is partially crystallized, the generation of electron-hole pairs is also lowered, and defects due to crystallization occur. Therefore, when manufacturing a detector, it is required to form a photoconductor having a high electron-hole pair generation rate and to maintain its physical properties even in subsequent processes.

In addition, the radiation detection unit 130 has a pair of electrodes disposed on both sides of a photoconductor having photoconductivity. A pair of electrodes is for applying a voltage to the photoconductor and collecting charges (electrons or holes) generated in the photoconductor.

Next, the radiation image processing unit 140 may be provided in the portable case and generate a transmission image of the examination object based on X-rays transmitted through the examination object.

The maximum expression capability per pixel of the radiation image processing unit 140 quantizes 14-bit incident X-ray energy into electrical signals of 16383 steps. In addition, the size of the pixel is 168um, and the size of the acquired image is 2560x2560 pixels, and an image for an area of 43x43cm can be obtained. It is saved as a DICOM file along with the original image after appropriate image processing according to each part selected by the user.

Next, the radiation detection unit 150 may be provided in the carrying case to measure the radiation level of the test object.

Next, the transmission image display unit 160 may be provided in the carrying case and display a transmission image of the test object.

Next, the radioactivity value display unit 170 may be provided in the carrying case to display the radioactivity level and/or transmitted X-ray intensity.

On the other hand, the present invention is provided in the carrying case, and when the intensity of the transmitted X-rays and the radioactivity level reach a reference value harmful to the human body, the alarm unit 20 outputs an alarm and the warning light 30 outputs a warning color can include more.

Here, the alarm unit 20 may be configured to output sounds such as human voice, mechanical sound, and environmental sound.

In addition, the present invention further includes a threshold value setting unit 180 for setting the radiation intensity and irradiation time of the radiation source, and the setting unit 180 may be configured to set the maximum value of the radiation source radiation intensity as a reference value for harm to the human body. .

In addition, the present invention may further include a storage unit, and may store the subject inspection file generated for each subject. The storage unit may store a radiation image file and a subject inspection file for each inspection object. For example, the storage unit may be implemented as a non-volatile memory or a volatile memory.

In addition, the present invention further includes a power supply unit, and is composed of a wired link or a battery to supply power necessary for the detailed configuration to the portable digital radiographic examination integrator 100 .

In addition, the present invention further includes a communication unit, capable of transmitting and receiving signals necessary for a radiation examination by performing wireless or wired communication with an external device, and performing wireless or wired communication with an external device to store a radiographic image stored in the storage unit. And image files can be transmitted or received.

In an embodiment, the communication unit may use any one of radio frequency (RF) communication, rubee communication, zigbee communication, infrared communication, and bluetooth communication, but is not limited thereto.

5 is a flowchart illustrating an operating method of a portable digital radiographic examination integrated operating apparatus according to an embodiment of the present invention.

First, referring to FIG. 5, in the operating method (S700) of the portable digital radiographic examination integrated operating device according to an embodiment of the present invention, the radiation source irradiator 120 withdrawn from the carrying case 110 moves to the target point of the test object. When moving to and radiating X-rays of a preset intensity to a target point of the test object (S710), the radiation detector 130 in the carrying case 110 detects the X-rays that have passed through the test object, and the radiation detector 150 detects the radioactivity level of the test object (S720).

Thereafter, when the radiation image processing unit 140 generates a radiographic image displaying the distance between the radiation source emitter and the inspection object and the X-ray irradiation intensity based on the transmitted X-rays (S730), the radiation generated by the transmission image display unit 160 A transmission image is displayed (S740).

In addition, the S700 process may further include outputting an alarm and a warning color when the intensity of the transmitted X-rays and the radioactivity level reach a reference value harmful to the human body.

In addition, the S700 process may further include setting the radiation source irradiation intensity and the irradiation time prior to the S710 process, and the setting may be a step of setting the maximum value of the radiation source radiation intensity to be less than the reference value for harm to the human body. there is.

Therefore, using the portable digital radiographic examination integrated operation device according to an embodiment of the present invention, it is possible to conveniently detect the radiographic image and radioactivity level of the test object in a narrow space, and at the same time, transmit the transmitted radiation image in the field. It has the advantage of being verifiable.

In addition, when the measured radiation intensity and radiation levels reach the standard value even during the work of detecting the radiation and radioactivity levels of the inspected object in real time, alarms and warning lights to warn of work hazards can be provided audibly and visually, This has the advantage of being able to perform safer operations.

The devices described above may be implemented as hardware components, software components, and/or a combination of hardware components and software components. For example, devices and components described in the embodiments may include, for example, a processor, a controller, an arithmetic logic unit (ALU), a digital signal processor, a microcomputer, and a field programmable array (FPA). ), programmable logic unit (PLU), microprocessor, or any other device capable of executing and responding to instructions.

The processing device may run an operating system (OS) and one or more software applications running on the operating system. A processing device may also access, store, manipulate, process, and generate data in response to execution of software. For convenience of understanding, there are cases in which one processing device is used, but those skilled in the art will understand that the processing device includes a plurality of processing elements and/or a plurality of types of processing elements. It can be seen that it can include.

For example, a processing device may include a plurality of processors or a processor and a controller. Also, other processing configurations are possible, such as parallel processors. Software may include a computer program, code, instructions, or a combination of one or more of the foregoing, which configures a processing device to operate as desired or processes independently or collectively. You can command the device. Software and/or data may be any tangible machine, component, physical device, virtual equipment, computer storage medium or device, intended to be interpreted by or provide instructions or data to a processing device. , or may be permanently or temporarily embodied in a transmitted signal wave. Software may be distributed on networked computer systems and stored or executed in a distributed manner. Software and data may be stored on one or more computer readable media.

The method according to the embodiment may be implemented in the form of program instructions that can be executed through various computer means and recorded on a computer readable medium. The computer readable medium may include program instructions, data files, data structures, etc. alone or in combination. Program commands recorded on the medium may be specially designed and configured for the embodiment or may be known and usable to those skilled in computer software. Examples of computer-readable recording media include magnetic media such as hard disks, floppy disks and magnetic tapes, optical media such as CD-ROMs and DVDs, and floptical disks. Included are hardware devices specially configured to store and execute program instructions, such as magneto-optical media, and ROM, RAM, flash memory, and the like. Examples of program instructions include high-level language codes that can be executed by a computer using an interpreter, as well as machine language codes such as those produced by a compiler. The hardware devices described above may be configured to operate as one or more software modules to perform the operations of the embodiments, and vice versa.

As described above, although the embodiments have been described with limited drawings, those skilled in the art can make various modifications and variations from the above description. For example, the described techniques may be performed in an order different from the methods described, and/or components of the described systems, structures, devices, circuits, etc. may be combined or combined in a different manner than the methods described, or in a different configuration. Appropriate results can be achieved even when substituted or substituted by elements or equivalents. Therefore, other implementations, other embodiments, and equivalents of the claims are within the scope of the following claims.

100: portable digital radiographic inspection integrated operating device
10: input/output unit
20: alarm unit
30: warning light
110: carrying case
120: radiation source irradiation unit
130: radiation source detection unit
140: radiation image processing unit
150: radiation detector
160: transmission image display unit
170: radiation level display unit
180: threshold setting unit

Claims (6)

carrying case;
a radiation source irradiator that is detachable from the carrying case and radiates X-rays to a target point of the test object for a preset time;
a radiation detection unit provided in the carrying case and detecting X-rays transmitted through the inspection object;
a radiation image processing unit provided in the carrying case and generating a transmission image of the inspection object based on X-rays transmitted through the inspection object;
a radiation detection unit provided in the carrying case and measuring a level of radiation of the test object;
an alarm/warning unit provided in the carrying case and outputting an alarm and a warning color when the intensity of the transmitted X-rays and the level of radioactivity reach a reference value harmful to the human body;
a transmission image display unit provided in the carrying case and displaying a radiographic image of the inspection object; and
A radioactivity value display unit provided in the carrying case and displaying the radioactivity level;
Further comprising a threshold value setting unit for setting radiation source irradiation intensity and irradiation time, wherein the threshold value setting unit sets the maximum value of the radiation source radiation intensity as a reference value for harm to the human body,
The radiation image processing unit
A radiation image is generated by quantizing the incident X-ray energy with 14 bits per pixel into an electrical signal of 16383 steps,
The pixel size of the radiographic image is 168um, and the size of the acquired radiographic image is 2560x2560 pixels, a portable digital radiography integrated operating device in an area of 43x43cm.
delete delete moving the radiation source irradiator drawn out from the carrying case to the target point of the test object and radiating X-rays of a predetermined intensity to the target point of the test object;
detecting X-rays transmitted through the test object by a radiation detector in the carrying case;
When the X-rays are detected, detecting the radiation level of the test object by a radiation detection unit;
generating a radiographic image in which the distance between the radiation source emitter and the test object and the X-ray irradiation intensity are displayed based on the transmitted X-rays in a radiation image processing unit; and
Displaying a radiographic image generated in a transmission image display unit and displaying the radioactivity level in a numerical display unit,
outputting an alarm and a warning color when the intensity of the transmitted X-rays and the level of radioactivity reach a reference value harmful to the human body; and
Prior to the irradiating step, further comprising setting a radiation source irradiation intensity and an irradiation time,
The setting step is a step of setting the maximum setting value of the irradiation intensity of the radiation source to be less than the reference value for harm to the human body,
The radiation image processing unit generates a radiation image by quantizing the incident X-ray energy with 14 bits per pixel into an electrical signal in step 16383;
The size of a pixel of the radiation image is 168um, and the size of the obtained radiation image is 2560x2560 pixels, characterized in that an area of 43x43cm. delete delete

Images