KR101639396B1 - Digital radiation detector and power managing method for the same - Google Patents
Digital radiation detector and power managing method for the same Download PDFInfo
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- KR101639396B1 KR101639396B1 KR1020140187995A KR20140187995A KR101639396B1 KR 101639396 B1 KR101639396 B1 KR 101639396B1 KR 1020140187995 A KR1020140187995 A KR 1020140187995A KR 20140187995 A KR20140187995 A KR 20140187995A KR 101639396 B1 KR101639396 B1 KR 101639396B1
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- power supply
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- 230000005855 radiation Effects 0.000 title claims abstract description 116
- 238000000034 method Methods 0.000 title claims description 21
- 230000002159 abnormal effect Effects 0.000 claims abstract description 21
- 238000012544 monitoring process Methods 0.000 claims abstract description 5
- 238000012545 processing Methods 0.000 claims description 18
- 238000007726 management method Methods 0.000 abstract description 29
- 238000002601 radiography Methods 0.000 description 11
- 238000001514 detection method Methods 0.000 description 7
- 230000003321 amplification Effects 0.000 description 6
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- 239000010409 thin film Substances 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 241001465754 Metazoa Species 0.000 description 1
- BUGBHKTXTAQXES-UHFFFAOYSA-N Selenium Chemical compound [Se] BUGBHKTXTAQXES-UHFFFAOYSA-N 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- 230000005260 alpha ray Effects 0.000 description 1
- 229910021417 amorphous silicon Inorganic materials 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 230000005251 gamma ray Effects 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
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- 230000006335 response to radiation Effects 0.000 description 1
- 229910052711 selenium Inorganic materials 0.000 description 1
- 239000011669 selenium Substances 0.000 description 1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
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- Engineering & Computer Science (AREA)
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- Radiology & Medical Imaging (AREA)
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- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Optics & Photonics (AREA)
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- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
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- Measurement Of Radiation (AREA)
- Computer Networks & Wireless Communication (AREA)
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Abstract
The present invention relates to a digital radiation detector having excellent portability and improved stability and reliability of power supply, and a power management method therefor. The digital radiation detector according to the present invention includes: a constant power supply target portion to which power is always supplied; An optional power supply target portion to which power is selectively supplied; A power supply unit including a main power supply unit and an auxiliary power supply unit for supplying power to the constant power supply target unit or the selective power supply target unit; And a power management unit for monitoring and controlling the power supply unit. When the power management unit determines that the main power unit is in an abnormal state, the main power unit is turned off, and the auxiliary power unit Control is performed to supply power.
Description
The present invention relates to a power management method for a digital radiation detector and a digital radiation detector, and more particularly, to a digital radiation detector having excellent portability and improved stability and reliability of power supply, and a power management method therefor.
A digital radiation detector (hereinafter referred to as "detector") is a device that electrically detects radiation such as X-rays transmitted through a human body or an object without film to acquire image information. That is, the image information obtained by irradiating the radiation is converted into an electrical signal, and by detecting it, the skeleton of the human body, the abnormality of the organ, or the crack of the object can be confirmed. The detector is divided into a direct method and an indirect method depending on the method of detecting a radiation image. The direct method is a method of directly detecting an electric signal generated by radiation transmitted through a human body by using amorphous selenium (or amorphous silicon) and a thin film transistor (TFT), and the indirect method is a method of directly detecting radiation (CsI) or the like, which converts an optical signal generated by a fluorescent substance such as cesium iodide (CsI) or the like, to a light-receiving element.
In recent years, such a digital radiation detector can be separated from a radiographic apparatus provided at various places such as a hospital for a human body or an animal, or an industrial site where various structures are required to be subjected to nondestructive inspection, And is developed as a cassette type digital radiation detector which is constructed to be capable of radiography by being inserted into the apparatus and is free in terms of time and space in use.
Unlike a fixed type digital radiation detector fixed to a radiography apparatus which is connected to an external power source and can receive a stable power supply, the cassette type digital radiation detector frequently moves to a radiography apparatus while carrying it for radiography, It is indispensable to secure a technique for radiographing using a cassette type digital radiation detector or supplying power required for transmission of acquired photographing information in a stable manner without increasing the weight or the volume so as to be easy to carry or move.
Disclosure of Invention Technical Problem [8] Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and an object of the present invention is to provide a digital radiation detector and a power management method therefor, which are superior in portability, .
According to an aspect of the present invention, there is provided a digital radiation detector including: a constant power supply target portion to which power is always supplied; An optional power supply target portion to which power is selectively supplied; A power supply unit including a main power supply unit and an auxiliary power supply unit for supplying power to the constant power supply target unit or the selective power supply target unit; And a power management unit for monitoring and controlling the power supply unit. When the power management unit determines that the main power unit is in an abnormal state, the main power unit is turned off, and the auxiliary power unit It is possible to control to supply power.
The auxiliary power unit may be a wired or wirelessly chargeable battery.
Wherein the constant power supply target portion includes a radiation detecting portion for generating an electric signal varying with intensity or amount of incident radiation, or a central processing portion for operating the digital radiation detector; Or a network unit connected to the central processing unit and communicating with the outside.
Wherein the selective power supply target unit comprises: an amplifying unit for amplifying an analog signal that varies according to intensity or amount of incident radiation; An A / D converter for converting the amplified analog signal into a digital signal; And an integrated circuit portion for converting the digital signal into a video signal and generating a driving signal.
The power management unit may control the main power unit to supply power to the normal power supply target unit and the selective power supply target unit when determining that the main power unit is in a normal state.
The main power unit may be connected to the external power unit via a wired or wireless connection, and the auxiliary power unit may be charged via the main power unit.
The power management unit may control the auxiliary power unit to supply power to the always-on power supply target unit and the selective power supply target unit before supplying power to only the always-power-supply target unit.
According to another aspect of the present invention, there is provided a power management method for a digital radiation detector, including: determining a power supply state of a main power unit; And supplying power according to the power supply state. In the step of supplying power, when the main power unit is in a normal state, the main power unit is connected to the always-power- And when the main power unit is in an abnormal state, the main power unit is turned off, and the auxiliary power unit supplies power to only the power target unit.
The main power unit may further include charging the auxiliary power unit when the main power unit is in a normal state.
In the step of determining the power supply state of the main power unit, when the main power unit is not connected to the external power unit by wire or wireless, or when the output voltage of the main power unit is lower than a predetermined voltage value, it can be determined as an abnormal state.
Wherein the power supply target portion includes a radiation detection portion for generating an electrical signal according to intensity or amount of incident radiation, or a central processing portion for operating the digital radiation detector; Or a network unit connected to the central processing unit and communicating with the outside.
Wherein the selective power supply target unit comprises: an amplifying unit for amplifying an analog signal that varies according to intensity or amount of incident radiation; An A / D converter for converting the amplified analog signal into a digital signal; And an integrated circuit portion for converting the digital signal into a video signal and generating a driving signal.
The auxiliary power supply unit may supply power to the constant power supply target unit and the selective power supply target unit before supplying power to only the always power supply target unit.
According to the digital radiation detector and the power management method therefor according to the present invention, when an abnormal state occurs in the main power unit together with the main power unit for supplying power to the entire device of the digital radiation detector, the power is selectively supplied by using the auxiliary power unit It is possible to supply power with improved portability and stability and reliability.
In addition, even when an abnormal state of the main power source occurs, the auxiliary power source unit supplies power to the digital radiation detector, so that the power source to be always supplied to the digital radiation detector can be prevented from being cut off, So that it is possible to suppress the deterioration of the image quality due to the offset change due to the reboot of the digital radiation detector.
Further, when the abnormal state of the main power unit occurs, the auxiliary power unit selectively supplies power to only a part of the area of the digital radiation detector, so that a sufficient amount of power can be supplied even with a small capacity battery having a small weight and volume, It is possible to suppress the increase in weight and volume of the entire radiation detector system, and thus it is possible to provide a digital radiation detector having excellent portability or mobility.
1 is a schematic diagram of a digital radiography apparatus including a digital radiation detector according to an embodiment of the present invention.
2 is a configuration diagram of a digital radiation detector according to an embodiment of the present invention.
3 is a configuration diagram illustrating a power supply unit of a digital radiation detector according to an embodiment of the present invention.
4 is an explanatory diagram showing a power supply mode of a digital radiation detector according to an embodiment of the present invention.
5 is a flowchart illustrating a power management method of a digital radiation detector according to another embodiment of the present invention.
Hereinafter, various embodiments of a digital radiation detector and a power management method according to the present invention will be described in detail with reference to the accompanying drawings. However, the present invention is not limited to the embodiments described below, but may be embodied in various forms. It is to be understood that both the foregoing general description and the following detailed description of the present invention are exemplary and explanatory and are intended to provide further explanation of the invention as claimed. The drawings may be exaggerated in size to illustrate the embodiments, and like reference numbers in the drawings indicate like elements.
FIG. 1 is a schematic view of a digital radiography apparatus including a digital radiation detector according to an embodiment of the present invention, FIG. 2 is a configuration diagram of a digital radiation detector according to an embodiment of the present invention, FIG. FIG. 4 is an explanatory view showing a power supply mode of the digital radiation detector according to the embodiment of the present invention. FIG.
1 to 4, a digital radiography system according to the present invention includes a radiation generator (not shown), a cassette type
The radiation generator is a device that generates radiation such as X-ray, alpha ray, gamma ray, electron ray, and ultraviolet ray and emits it toward the
The cassette type
The
The
The
The
The
The
The
The
The
When the
When an event such as shorting of the electrical connection between the
During the initialization process, each sensing pixel of the
In order to improve the mobility of the digital radiation detector, even when a large capacity battery of 40 W or more is used as the main power source, the output voltage drops below a predetermined value due to the discharge of the large capacity battery. In order to charge the discharged large capacity battery, The quality of the radiographic image may be deteriorated due to a change in the offset values.
In order to solve this problem, in the present invention, the
The
The constant power
When the
When the main
On the other hand, the power supply mode of the auxiliary
Even when the main
In addition, the
5 is a flowchart illustrating a power management method of a digital radiation detector according to another embodiment of the present invention.
Referring to FIG. 5, a power management method for a
The
The main
The constant power
The selective power
The step of supplying the power may vary the power supply mode of the
The description overlapping with the description of the digital radiation detector of the present invention will be omitted, but the contents omitted in understanding the power management method of the
If the
While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but many variations and modifications may be made without departing from the spirit and scope of the invention. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the scope of the present invention. Accordingly, the technical scope of the present invention should be defined by the following claims.
10: digital radiation detector support part 15:
20: Digital radiation detector 30: User interface
40: Subject body 100: Radiation detection part
200: Amplifier 300: A / D converter
400: integrated circuit part 500: central processing part
600: Network section 610: Wireless network section
620: wired network unit 700: power supply unit
710: Power Management Unit 720: Main Power Unit
730: Charging section 740: Auxiliary power section
750: Load multiplex 800: External power supply
810: Wireless external power source 820: Wired external power source
900: load 910: constant power supply target part
920: Selective power supply target portion
Claims (15)
An optional power supply target portion to which power is selectively supplied;
A power supply unit including a main power supply unit and an auxiliary power supply unit for supplying power to the constant power supply target unit or the selective power supply target unit; And
And a power management unit for monitoring and controlling the power supply unit,
Wherein the constant power supply target portion includes a radiation sensing portion having a sensing pixel for generating an electric signal that varies depending on the intensity or the amount of incident radiation,
Wherein the selective power supply target unit comprises: an amplifying unit for amplifying an analog signal that varies according to intensity or amount of incident radiation; An A / D converter for converting the amplified analog signal into a digital signal; And an integrated circuit portion for converting the digital signal into a video signal and generating a driving signal,
Wherein the power management unit cuts off the main power unit and controls the auxiliary power unit to supply power to only the power supply target unit when the main power unit is in an abnormal state, Digital radiation detector to keep constant.
Wherein the auxiliary power unit is a battery that can be charged by wire or wirelessly.
Wherein the constant power supply target unit comprises: a central processing unit for operating the digital radiation detector; Or a network unit connected to the central processing unit and communicating with the outside.
Wherein the power management unit controls the main power unit to supply power to the constant power supply target unit and the selective power supply target unit when it is determined that the main power unit is in a normal state.
Wherein the main power unit is connected to an external power line by wire or wirelessly and the auxiliary power unit is charged via the main power unit.
And the power management unit may control the auxiliary power unit to supply power to the constant power supply target unit and the selective power supply target unit before supplying power to only the constant power supply target unit.
And supplying power according to the power supply state,
In the step of supplying power,
When the main power unit is in a normal state,
A normal power supply target portion including a radiation sensing portion having a sensing pixel for generating an electric signal that varies depending on the intensity or amount of radiation incident on the main power portion; And an amplifying unit for amplifying an analog signal that varies depending on the intensity or amount of incident radiation. An A / D converter for converting the amplified analog signal into a digital signal; And an integrated circuit unit for converting the digital signal into a video signal and generating a driving signal,
When the main power supply unit is in an abnormal state,
Wherein the main power unit is cut off and the auxiliary power unit supplies power to only the power supply target unit to maintain the noise correction offset values of the sensing pixels at a constant level.
Wherein the main power unit charges the auxiliary power unit when the main power unit is in a normal state.
In the step of determining the power supply state of the main power supply unit,
And determining that the main power unit is in an abnormal state when the main power unit is not connected to the external power unit in a wired or wireless manner or when the output voltage of the main power unit is lower than a predetermined voltage value.
Wherein the constant power supply target unit comprises: a central processing unit for operating the digital radiation detector; And a network unit connected to the central processing unit and communicating with the outside.
Wherein the auxiliary power supply unit can supply power to the constant power supply target unit and the selective power supply target unit before supplying power to only the constant power supply target unit.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020140187995A KR101639396B1 (en) | 2014-12-24 | 2014-12-24 | Digital radiation detector and power managing method for the same |
| PCT/KR2015/014132 WO2016105105A1 (en) | 2014-12-24 | 2015-12-22 | Digital radiography detector and power management method therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020140187995A KR101639396B1 (en) | 2014-12-24 | 2014-12-24 | Digital radiation detector and power managing method for the same |
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| Publication Number | Publication Date |
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| KR20160077725A KR20160077725A (en) | 2016-07-04 |
| KR101639396B1 true KR101639396B1 (en) | 2016-07-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| KR1020140187995A KR101639396B1 (en) | 2014-12-24 | 2014-12-24 | Digital radiation detector and power managing method for the same |
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| KR (1) | KR101639396B1 (en) |
| WO (1) | WO2016105105A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20200101799A (en) | 2019-02-20 | 2020-08-28 | 주식회사 디알텍 | Radiation detector and apparatus for radiographic using the same |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001028844A (en) * | 1999-05-12 | 2001-01-30 | Nec Eng Ltd | Life detection method and life monitoring device for auxiliary power supply of backup-type power supply device |
| KR101223230B1 (en) | 2012-07-09 | 2013-01-17 | 주식회사 지스콥 | A system checking for operation error of a radiological sensing device |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06332586A (en) * | 1993-05-20 | 1994-12-02 | Matsushita Electric Ind Co Ltd | Power source protection circuit |
| KR100413946B1 (en) | 2000-11-16 | 2004-01-07 | 주식회사 디알텍 | plate type digital radiography cassette |
| JP2006263322A (en) * | 2005-03-25 | 2006-10-05 | Konica Minolta Medical & Graphic Inc | Radiographic imaging system, console, and program executed in console |
| KR20130068396A (en) * | 2011-12-15 | 2013-06-26 | 삼성전자주식회사 | Digital detector and radiation apparatus using the same |
-
2014
- 2014-12-24 KR KR1020140187995A patent/KR101639396B1/en active IP Right Grant
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- 2015-12-22 WO PCT/KR2015/014132 patent/WO2016105105A1/en active Application Filing
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001028844A (en) * | 1999-05-12 | 2001-01-30 | Nec Eng Ltd | Life detection method and life monitoring device for auxiliary power supply of backup-type power supply device |
| KR101223230B1 (en) | 2012-07-09 | 2013-01-17 | 주식회사 지스콥 | A system checking for operation error of a radiological sensing device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20200101799A (en) | 2019-02-20 | 2020-08-28 | 주식회사 디알텍 | Radiation detector and apparatus for radiographic using the same |
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| Publication number | Publication date |
|---|---|
| KR20160077725A (en) | 2016-07-04 |
| WO2016105105A1 (en) | 2016-06-30 |
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