KR20210103006A - Reading device for chemical indicator - Google Patents

Abstract

The present invention relates to an automatic sterilization indicator reading device and, more specifically, to an automatic sterilization indicator reading device to automatically read a sterilization state of a chemical sterilization indicator having color changed according to the sterilization state. To this end, the automatic sterilization indicator reading device comprises: a color reading sensor unit generating a color detection signal of an indication pattern to read the color of the indication pattern of a sterilization indicator having color changed according to a sterilization state; a signal processing unit receiving the color detection signal to perform signal processing to enable color discrimination; a control unit generating a control signal to acquire the color detection signal and analyzing the level of the acquired color detection signal to read a sterilization state; and a reading result display unit displaying a reading result of the control unit.

Description

Automatic sterilization indicator reading device {Reading device for chemical indicator}

The present invention relates to an automatic sterilization indicator reading device, and more particularly, to automatically detect the sterilization state of a chemical sterilization indicator that is inserted into a sterilization chamber together with a sterilization object and changes color according to the sterilization state when sterilizing a sterilization object in a hospital, etc. It relates to an automatic sterilization indicator reading device that reads with

In the prior patent document KR 10-2019-0102134 (title of invention: chemical sterilization indicator reading module), the color of the chemical sterilization indicator is detected using a color sensor, so that the user can easily open the sterilizer and check the chemical sterilization indicator with the naked eye. A reading device capable of quickly confirming the degree of sterilization is disclosed.

However, the prior patent document uses a color sensor, but only normalizes the detected color value itself and transmits it wirelessly. There is a problem in that the user has to determine whether or not the pass has passed, and further, in the case of a sterilization indicator made of a pattern space as in the present invention, a method for reading it is not disclosed.

On the other hand, the prior patent literature discloses most of the detailed configuration and arrangement of the reading module composed of "clamp type" rather than the description of how to determine the sterilization state of the sterilization indicator in detail through the color sensor. As in the present invention, it is not possible to read the sterilization indicator consisting of stripes as well as the configuration of the present invention of the scan type and its configuration.

KR 10-2019-0102134 (Title of the invention: chemical sterilization indicator reading module)

Therefore, the present invention has been created to solve the problems as described above, and as a scan type, it is possible to conveniently inject sterilization indicators sequentially and automatically read the sterilization status of the sterilization indicators formed with patterns. Its purpose is to provide

In addition, in addition to the Cds sensor (or illuminance sensor), the sterilization state (passed) of the object to be disinfected through the acquisition signal by acquiring the signal of the sterilization indicator through the CCD (Charge-Coupled Device) sensor or the CMOS (Complementary Metal Oxide Semiconductor) sensor or fail) can be determined and, at the same time, the photographed image of the sterilization indicator can be stored, adding useful value as evidence.

However, the objects of the present invention are not limited to the above-mentioned objects, and other objects not mentioned will be clearly understood by those skilled in the art from the following description.

The above-described object of the present invention, the color reading sensor unit that generates a color detection signal of the instruction pattern to read the color of the instruction pattern of the sterilization indicator that changes color depending on the sterilization state, receives the color detection signal to determine the color A signal processing unit that performs signal processing to enable, a control unit that generates a control signal to obtain a color detection signal, a control unit that analyzes the level of the obtained color detection signal to read the sterilization state, a reading result display unit that displays the reading result of the control unit It can be achieved by providing a sterilization indicator automatic reading device, characterized in that it comprises.

In addition, the movement speed is adjusted according to the movement speed control signal of the control unit so as to move the sterilization indicator in conjunction with the sterilization indicator feeding unit that receives the sterilization indicator fed together with the sterilization object in the sterilizer, and the sterilization indicator is fed. It further includes a sterilization indicator driving unit.

In addition, the sterilization indicator driving unit includes a motor unit for controlling the horizontal movement speed of the sterilization indicator by rotating the roller unit to correspond to the movement speed control signal, the roller unit to move the sterilization indicator in the horizontal direction.

In addition, the color reading sensor unit generates a color detection signal by the reflected light signal for the instruction pattern of the sterilization indicator, or generates a color detection signal by the image signal photographed the instruction pattern of the sterilization indicator.

In addition, the color reading sensor unit generates a color detection signal by successively acquiring the reflected light signal for the indicating pattern corresponding to the sensing interval signal set by the control unit according to the length and moving speed of the indicating pattern.

In addition, the control unit includes a color value input unit that receives the continuous color detection signal generated from the color reading sensor unit, a color value aligning unit that separates and aligns the continuous color detection signal according to a preset section, and each color detection level value It includes a color level analysis unit that reads the sterilization state of the sterilization indicator and the state of the sterilizer as the color of the instruction pattern changed according to the sterilization state is read by comparing and analyzing the reference level value and the sterilization state.

In addition, the color reading sensor unit is a first color reading sensor unit for generating a color detection signal of the first indication pattern to read the color of the first indication pattern when the indication pattern of the sterilization indicator is made of both sides, the first indication pattern and a second color reading sensor unit disposed at a position corresponding to the first color reading sensor unit to read the color of the second indication pattern printed on the opposite surface to generate a color detection signal of the second indication pattern.

In addition, the control unit includes a first sensor control unit for generating a first color sensing operation signal for controlling an operation of the first color reading sensor unit, and a second sensor generating a second color sensing operation signal for controlling an operation of the second color reading sensor unit. The control unit generates a sensing interval signal set according to the length and movement speed of the indication pattern, and operates the first color reading sensor unit to avoid interference of each reflected light signal generated by the first and second color reading sensor units. and a sensing timing setting unit generating first and second color sensing operation signals to operate the second color reading sensor unit after successively acquiring color sensing signals of one indication pattern.

In addition, the color reading sensor unit is a CCD sensor unit or CMOS sensor unit, a pixel signal receiving unit that receives a signal obtained by photographing a sterilization indicator from the CCD sensor or CMOS sensor in units of pixels, processes the received pixel signal, and a sterilization indicator a pixel signal classification processing unit for classifying and classifying the pixel signal of a pixel point having a color indication pattern of do.

According to the present invention as described above, it is possible to conveniently inject the sterilization indicator sequentially as a scan type, and there is an effect of automatically reading the sterilization status of the sterilization indicator formed in a pattern.

The following drawings attached to the present specification illustrate a preferred embodiment of the present invention, and serve to further understand the technical idea of the present invention together with the detailed description of the present invention, so the present invention is limited to the matters described in those drawings It should not be construed as being limited.
1 to 2 is a view showing a sterilization indicator formed at regular intervals according to an embodiment of the present invention,
Figure 3 is a view showing a sterilization indicator without a pattern according to an embodiment of the present invention,
4 is a diagram schematically showing the configuration of an automatic sterilization indicator reading device according to an embodiment of the present invention,
5 is a diagram schematically showing the configuration of a control unit according to an embodiment of the present invention,
6 is a diagram schematically illustrating a configuration for obtaining a color change detection signal or a color detection signal of each indication pattern of the double-sided sterilization indicator according to an embodiment of the present invention without reflected light interference;
7 is a diagram for reading the sterilization state by comparing the color detection level value or the color change level value and the reference level value of the sterilization indicator having seven indication patterns according to an embodiment of the present invention;
8 is a diagram for deriving a level value of each pixel point using a CCD sensor or a CMOS sensor according to an embodiment of the present invention.

Hereinafter, a preferred embodiment of the present invention will be described with reference to the drawings. In addition, one embodiment described below does not unreasonably limit the content of the present invention described in the claims, and it cannot be said that the entire configuration described in the present embodiment is essential as a solution for the present invention. In addition, descriptions of the prior art and matters obvious to those skilled in the art may be omitted, and the description of the omitted components (methods) and functions may be sufficiently referenced within the scope not departing from the technical spirit of the present invention.

A device for automatically reading a sterilization indicator according to an embodiment of the present invention is a device for automatically reading the sterilization state of a chemical sterilization indicator (100, chemical indicator) shown as an example in FIGS. The sterilization indicator automatic reading device may be manufactured in a portable or tabletop compact type. Hereinafter, an automatic sterilization indicator reading device according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

The sterilization indicator 100 shown in FIGS. 1 to 3 is inserted together with the sterilization object into the sterilizer (not shown), and the instruction patterns 111 and 121 printed on the sterilization indicator 100 when the sterilization is completed in the sterilizer. will change the color of The degree of color change of the indication patterns 111 and 121 is read to indirectly determine the sterilization state (pass or fail) of the object to be disinfected, and further, check the current state of the sterilizer according to the degree of color change (shortage of temperature of the sterilizer or leakage of the sterilizer) The problem that sterilization is not performed properly) may be possible.

The chemical sterilization indicator 100 may be composed of an upper sterilization indicator 110 on the upper surface and a lower sterilization indicator 120 on the lower surface when it is configured on both sides as a strip type as shown in FIG. 1 , When it is composed of a cross-section, it may be composed of either an upper or a lower surface. The upper color indicator pattern 111 is printed on the upper sterilization indicator 110 , and the lower color indicator pattern 121 is printed on the lower sterilization indicator 120 .

As for the indication pattern 111, a pattern of the same pattern as shown in FIG. 1 or 2 may be continuously printed at regular intervals. In addition, the indication pattern 111 may be continuously printed without a pattern as shown in FIG. 3 . In the indication pattern 111 as shown in FIG. 1 or FIG. 2 , as shown in FIG. 7 , each of the 7 color sensing level values is derived corresponding to each pattern pattern by the color reading sensor unit. Since the indication pattern 111 as shown in FIG. 3 is continuously printed without a pattern pattern, a color sensing level value for detecting a change in color is derived for _{each arbitrarily set preset section (t 11} to t _{17 ).}

The indicator patterns 111 and 121 shown in FIG. 1 may each have the same pattern pattern or may be formed of different pattern patterns. In addition, when the sterilization indicator 100 is made of both sides, the upper color reading sensor unit 211 for obtaining the upper color detection signal and the lower color detection signal corresponding to each of the sterilization indicators 110 and 120 as will be described later and A lower color reading sensor unit 212 may be provided. In the case of FIG. 1 , a total of 14 color sensing level values obtained by adding the 7 color sensing level values obtained by the upper color sensing signal and the 7 color sensing level values obtained by the lower color sensing signal can be derived. By comparing a total of 14 color detection level values with the reference level values, it is possible to determine whether the object to be disinfected is 'passed or failed' as to whether the disinfection object has been properly disinfected according to whether it satisfies a set criterion above a certain level. If the indication pattern is printed only on one side, it is possible to determine whether 'pass or fail' is satisfied according to whether the seven color detection level values are compared with the reference level values, and a set standard of a certain level or higher is satisfied.

On the other hand, even when the indication pattern is printed on one side or both sides, the obtained color sensing level value may not be sufficient. That is, in order to accurately know the sterilization state of the object to be disinfected and the current state of the sterilizer, more information may be required. In this case, as shown in FIG. 1 , the region is divided into the first and second indicating patterns 111a and 111b around the center of the indicating pattern 111 , and each of the first and second indicating patterns 111a and 111b is separated. It is desirable to obtain a color sense level value. In this case, 14 level values are derived for the upper surface, and 14 level values are derived for the lower surface using the same principle, resulting in a total of 28 level values. Therefore, it is possible to know a more accurate sterilization state.

When a color detection level value is derived by dividing each of the first and second indicating patterns 111a and 111b on the upper surface into regions, the color reading sensor unit to be described later also receives the color detection signal of the first indicating pattern 111a corresponding thereto. It is necessary to have a sensor unit that continuously acquires a color detection signal of the second indication pattern 111b and a sensor unit that continuously acquires the color detection signal of the second indication pattern 111b independently of each other with two channels. In the same principle, in order to derive the color sensing level values of the first and second indication patterns 121a and 121b on the lower surface, two channels are required for the color reading sensor, and the color reading sensor may have a total of four channels.

The automatic sterilization indicator reading device according to an embodiment of the present invention may be configured as shown in FIG. 4 . The sterilization indicator feeding unit 231 receives the sterilization indicator 100 that has been sterilized in the sterilizer.

The sterilization indicator driving unit 232 is operated by controlling the movement speed according to the movement speed control signal of the control unit 240 so as to move the sterilization indicator in the horizontal direction in conjunction with the feeding of the sterilization indicator. The sterilization indicator driving unit 232 corresponds to the movement speed control signal transmitted from the roller unit 232 and the control unit 240 to move the sterilization indicator 100 in the horizontal direction as shown briefly in FIG. It includes a motor unit (not shown) for controlling the moving speed (v) in the horizontal direction of the sterilization indicator by rotating the roller unit. The moving speed v in the horizontal direction of the sterilization indicator 100 shown in FIG. 6 is _{set in correlation with the sensing interval signals t 1} , t ₂ according to the length of the indication patterns 111 and 121, and the movement speed If is too fast or too slow, the color detection signal obtained according to the sensing interval signal may not be accurately obtained for each pattern pattern.

The color reading sensor unit 210 may be embodied as an illuminance sensor unit and an image sensor unit as shown in FIG. 4 . That is, the color reading sensor unit 210 may be implemented as an image sensor by a CCD sensor or a CMOS sensor (hereinafter referred to as an image signal acquisition unit) or as an illuminance sensor using reflected light. The illuminance sensor unit generates a color detection signal of the indication pattern to read the color of the indication pattern of the sterilization indicator 100, which changes color according to the sterilization state. The illuminance sensor irradiates light to the instruction pattern of the sterilization indicator and generates a color detection signal by the reflected light signal for it, and the image signal acquisition unit generates a color detection signal by the image signal photographing the instruction pattern of the sterilization indicator . In the case of the illuminance sensor, the signal processing unit 220 may include a filter for filtering a frequency of a specific band and an amplifying unit for amplifying a signal input from the illuminance sensor. In the case of the image signal acquisition unit, the signal processing unit 220 may be configured as an image processing unit for signal processing the input image signal. Hereinafter, the description will be based on the illuminance sensor, but the image signal acquisition unit will be substituted for the description of the illuminance sensor, and if necessary, a supplementary description may be referred to within the scope not departing from the technical spirit of the present invention.

6 is for explaining the case where the sterilization indicator 100 is double-sided, and the color reading sensor unit 210 is a sensing interval signal (t ₁ , t ₂ ) set by the control unit according to the length and movement speed of the indication pattern. Correspondingly, the color sensing signal is generated by successively acquiring the reflected light signal for the indication pattern. However, when the sterilization indicator 100 is made of a _single side, the reflected light signal of the upper color indicator pattern 111 printed on the upper surface may be continuously acquired by the t 1 sensing interval signal. The color reading sensor unit 210 includes a light emitting unit and a light receiving unit, and the light irradiated from the light emitting unit is reflected by the indication pattern and is incident on the light receiving unit, thereby generating a color detection signal.

When the sterilization indicator 100 is double-sided, the first color reading sensor unit 211 is for reading the upper color indicator pattern 111 printed on the upper surface and generates a color detection signal of the upper color indicator pattern, The second color reading sensor unit 212 is for reading the lower color indication pattern 121 printed on the lower surface, and is disposed at a position corresponding to the upper color reading sensor unit 211 to detect the color of the lower color indication pattern. create Therefore, in the case of double-sided, the color reading sensor unit may be formed of two channels, and in order to know a more accurate sterilization state, it may be formed of four channels as described above. In addition, when the sterilization indicator 100 has a cross-section, it may be composed of one channel.

However, in the case of 2 channels or 4 channels, the first color reading sensor unit 211 is first operated to avoid interference of the reflected light signals generated by the first and second color reading sensor units 211 and 212 with each other. After continuously acquiring the color detection signal of the color indicating pattern 111 , the second color reading sensor unit 212 is preferably operated to acquire the color detection signal of the lower color indicating pattern 121 . Accordingly, as shown in FIG. 6 , the first color reading sensor unit 211 reads the sterilization state of the upper color indication pattern 111 of the sterilization indicator 100 injected into the sterilization indicator feeding unit 231 . It is disposed close to the feeding unit 231 , and the second color reading sensor unit 212 is spaced apart from the first color reading sensor unit 211 by a predetermined distance in the horizontal direction so that the first color reading sensor unit 211 is first After the operation is completed, the second color reading sensor unit 212 is operated.

The image signal acquisition unit uses a CCD sensor or a CMOS sensor to obtain an image signal obtained by photographing a sterilization indicator in units of pixels. As an example, each quadrangle may be viewed as one pixel as shown in FIG. 8 . The image signal acquisition unit generates a signal sensed by a level value of each pixel point of the sterilization indicator 110 through a CCD sensor or a CMOS sensor. The image signal acquisition unit or signal processing unit 210 distinguishes the pixel signal of the pixel point (see 8 marking points in FIG. 8 ) having the color indication pattern 111 of the sterilization indicator 110 from the pixel signal of other pixel points In order to classify and accurately detect the level value of each pixel point, the signal-processed pixel signal of the pixel point having the color indication pattern 111 is transmitted to the controller 240 through appropriate signal processing.

At this time, the control unit 240 stores the image signal of the sterilization indicator 110 taken in order to secure the evidence image of the sterilization indicator 110 in the storage unit. According to the storage of the captured image of the sterilization indicator 110 as described above, it is possible to efficiently operate the integrated sterilization management device in hospitals, etc. Also, the controller 240 obtains a signal level value of each pixel point by using the signal-processed pixel signal of the pixel point having the color indication pattern 111 . That is, the signal level value of each pixel point for the eight marking points shown in FIG. 8 is calculated. By averaging the eight signal level values and comparing them with a preset reference value, it is possible to determine whether the sterilization state of the object to be disinfected is pass or fail. In this case, the average value may be used as described above, or the determination may be made through comparison with a reference value using a calculation method that meets a preset condition in various ways.

As another example, the pixel section of the area of the first indication pattern 111a and the area of the second indication pattern 111b of the color indicator 111 is divided from each other, and each of the first and second indication patterns 111a and 111b is separated from each other. It may be determined whether each region of the first indication pattern 111a is in a sterile state by dividing the level values of the pixel points and calculating the level values.

The above-described image signal acquisition unit 210, signal processing unit 220, and control unit 240 may be integrated with each other to perform function processing in any one component, and if necessary, as described above, Functions may be separated and the processing of functions may be involved.

5, the control unit 240 generates an operation control signal for operating the color reading sensor unit 210 to obtain a color detection signal, and analyzes the level of the obtained color detection signal to read the sterilization state. . According to the read sterilization state, it is possible to know the current temperature state of the sterilizer or whether there is a leak, and furthermore, it is possible to determine whether the object to be disinfected has been properly sterilized.

The color value input unit 241 receives a continuous color detection signal generated from the color reading sensor unit 210 . When the color reading sensor unit 210 includes two channels 211 and 212 , the upper color value input unit receiving the color detection signal of the first color reading sensor unit 211 and the second color reading sensor unit 212 detect the color It may be composed of a lower color value input unit receiving a signal.

The color value aligning unit 242 classifies and aligns successive color detection signals according to preset sections. Here, the continuous color detection signal is a signal for detecting a color change of the color indication pattern on one side of the sterilization indicator 100 for _{t 1 time shown in FIG. 7 .} As described above, when the color reading sensor unit 210 has 2 or 4 channels, the color detection signals input for each channel are classified and arranged. In addition, the preset section may be set as follows. That is, when the pattern pattern is formed as shown in FIG. 1 or FIG. 2, it means a section in which the color detection signal of each pattern pattern can be distinguished, and when there is no pattern pattern as shown in FIG. 3, it means an arbitrarily set section. Even in the case of FIG. 3, if the preset section is divided into 7, a total of 7 color detection signals may be output as shown in FIG.

The color level analysis unit 243 converts the aligned color detection signal input from the color value alignment unit 242 into a color detection level value as shown in FIG. 7 , and each color detection level value and By comparing and analyzing the reference level values stored in the lookup table unit 244 with each other, the sterilization state of the sterilization indicator 100 and the state of the sterilizer are read as the color of the instruction pattern changed according to the sterilization state is read. 7 is a diagram comparing the color sensing level value of the upper color indicating pattern 111 and the reference level value as an example. If it is higher than the reference level value, it can be defined as pass, and if it is lower than the reference level value, it can be defined as fail. At this time, referring to an example of FIG. 7 , five of the seven instruction patterns 111 are 'pass' levels, and two are 'failed' levels. In this case, it may be determined that the overall sterilization state is 'passed or failed' according to the preset judgment criteria.

In addition, the sterilizer state determination unit 247 receives each color detection level value from the color level analysis unit 243, and can determine the temperature state or the leak state of the sterilizer from each color detection level value shown in FIG. . Based on this determination, it may be determined whether the sterilizer (or sterilization chamber) for sterilizing the object to be disinfected is malfunctioning.

The sensor control unit 245 generates a sensing interval signal and an operation timing signal of the color reading sensor unit 210 , respectively. As shown in FIG. 5 , the upper sensor control unit generates a first color sensing operation signal for controlling the operation of the first color reading sensor unit 211 . The lower sensor control unit generates a second color sensing operation signal for controlling the operation of the second color reading sensor unit 212 . _{The sensing timing setting unit generates the sensing interval signals (t 1} , t ₂ ) set according to the length and movement speed of the instruction pattern, and the interference of each reflected light signal generated by the first and second color reading sensor units 211 and 212 . In order to avoid each other, the first color reading sensor unit 211 is operated to continuously acquire the color detection signals of the upper color indicating pattern 111 , and then the second color reading sensor unit 212 is operated to obtain the lower color indicating pattern 121 . ), the first and second color detection operation signals for continuously acquiring the color detection signals are respectively generated.

The roller speed control unit 246 controls the horizontal movement speed (v) of the sterilization indicator 100 as shown in FIG.

The integrated sterilization management unit 300 is a server that manages the sterilization record of each hospital by receiving input from the control unit 240 in real time whether the sterilization state of each object is sterilized and whether the sterilizer is in the sterilization state.

In the description of the present invention, the description may be omitted for matters obvious to those skilled in the art and those skilled in the art, and the description of these omitted components (methods) and functions will be sufficiently referenced within the scope not departing from the technical spirit of the present invention. will be able In addition, the above-described components of the present invention have been described for convenience of description of the present invention, and components not described herein may be added within a range that does not depart from the technical spirit of the present invention.

The description of the configuration and function of each part has been described separately for convenience of description, and if necessary, any configuration and function may be implemented by being integrated into other components, or may be implemented in more subdivision.

As mentioned above, although it has been described with reference to one embodiment of the present invention, the present invention is not limited thereto, and various modifications and applications are possible. That is, those skilled in the art will readily understand that many modifications are possible without departing from the gist of the present invention. In addition, if it is determined that the detailed description of the known functions related to the present invention and its configuration or the coupling relationship for each configuration of the present invention may unnecessarily obscure the gist of the present invention, it should be noted that the detailed description is omitted. something to do.

100: chemical sterilization indicator
110: upper sterilization indicator
111: upper color indication pattern
111a: first indication pattern
111b: second instruction pattern
120: lower sterilization indicator
121: lower color indication pattern
121a: first instruction pattern
121b: second instruction pattern
210: color reading sensor unit
211 upper color reading sensor unit
212 lower color reading sensor unit
220: signal processing unit
231: sterilization indicator feeding part
232: sterilization indicator driving unit (or roller and motor unit)
240: control unit
241: color value input unit
242: color value alignment unit
243: color level analysis unit
244: lookup table part
245: sensor control unit
246: roller speed control
247: sterilizer state determination unit
250: reading result display unit
300: sterilization integrated management unit

Claims (9)

A color reading sensor unit that generates a color detection signal of the indication pattern to read the color of the indication pattern of the sterilization indicator that changes color according to the sterilization state;
a signal processing unit that receives the color detection signal and performs signal processing to enable color discrimination;
A control unit that generates a control signal to obtain the color detection signal, and analyzes the level of the obtained color detection signal to read the sterilization state;
A sterilization indicator automatic reading device comprising a reading result display unit for displaying the reading result of the control unit.
The method of claim 1,
A sterilization indicator feeding unit that receives the sterilization indicator fed with the sterilization object in the sterilizer,
Automatic reading of sterilization indicator, characterized in that it further comprises a sterilization indicator driving unit that is operated by controlling the movement speed according to the movement speed control signal of the control unit so as to move the sterilization indicator in conjunction with the feeding of the sterilization indicator Device.
3. The method of claim 2,
The sterilization indicator driving unit,
A roller unit to move the sterilization indicator in the horizontal direction,
The sterilization indicator automatic reading device, characterized in that it comprises a motor for adjusting the horizontal movement speed of the sterilization indicator by rotating the roller to correspond to the movement speed control signal.
3. The method of claim 2,
The color reading sensor unit,
Auto sterilization indicator, characterized in that the color detection signal is generated by the reflected light signal for the instruction pattern of the sterilization indicator, or the color detection signal is generated by the image signal obtained by photographing the instruction pattern of the sterilization indicator reading device.
5. The method of claim 4,
The color reading sensor unit,
Sterilization indicator automatic reading, characterized in that by continuously acquiring the reflected light signal for the indication pattern corresponding to the sensing interval signal set by the control unit according to the length and the movement speed of the indication pattern to generate the color detection signal Device.
6. The method of claim 5,
The control unit is
a color value input unit receiving a continuous color detection signal generated from the color reading sensor unit;
a color value aligning unit for classifying and aligning the continuous color detection signals according to a preset section;
Comprising a color level analysis unit that reads the sterilization state of the sterilization indicator and the state of the sterilizer as the color of the instruction pattern changed according to the sterilization state is read by comparing and analyzing each color detection level value and the reference level value sterilization indicator automatic reading device.
7. The method of claim 6,
The color reading sensor unit,
A first color reading sensor unit for generating a color detection signal of the first indication pattern to read the color of the first indication pattern when the indication pattern of the sterilization indicator is made of both sides;
A second direction for generating a color detection signal of the second indication pattern by being disposed at a position corresponding to the first color reading sensor unit to read the color of the second indication pattern printed on the surface opposite to the first indication pattern Sterilization indicator automatic reading device, characterized in that it comprises a color reading sensor.
8. The method of claim 7,
The control unit is
a first sensor control unit for generating a first color sensing operation signal for controlling an operation of the first color reading sensor unit;
a second sensor control unit for generating a second color sensing operation signal for controlling the operation of the second color reading sensor unit;
The first color reading sensor unit is configured to generate the sensing interval signal set according to the length of the indication pattern and the moving speed, and to avoid interference of the reflected light signals generated by the first and second color reading sensor units with each other. and a sensing timing setting unit generating the first and second color sensing operation signals to operate the second color reading sensor unit after successively acquiring the color sensing signal of the first indication pattern by operating it Sterilization indicator automatic reading device.
5. The method of claim 4,
The color reading sensor unit,
CCD sensor unit or CMOS sensor unit;
A pixel signal receiving unit that receives a signal obtained by photographing a sterilization indicator from the CCD sensor or CMOS sensor in units of pixels;
A pixel signal classification processing unit that processes the received pixel signal and divides and classifies the pixel signal of the pixel point having the color indication pattern of the sterilization indicator from the pixel signal of other pixel points;
A sterilization indicator automatic reading device comprising a level value calculation unit for calculating a signal level value of each pixel signal of a pixel point having a color indication pattern.

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