JP2002034528A - Hygiene management system - Google Patents

Abstract

(57) [Summary] [Problem] Judgment of the pollution situation based on the existence of contaminants
Provide a sanitary management system that can perform sterilization according to contamination. SOLUTION: Detecting units 1 to 5 for directly detecting the presence of contaminants requiring sterilization, and performing predetermined arithmetic processing based on the detection results of the detecting units, collating with data stored in advance, and finally Management units 6 to 10 that output control signals corresponding to the contaminants specified based on the computation results, and sterilization units 11 to perform sterilization of contaminants locally by limiting the sterilization range according to the control of the management units. 14 was provided.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sanitary management system for judging contamination of a sanitary management object or a target area by microorganisms, bacteria, foreign substances, etc., and sterilizing according to the contamination.

[0002]

2. Description of the Related Art In recent years, in the food field, HACCP (Hazard Analysis) has been developed in order to prevent contamination by microorganisms and foreign substances.
Critical Control Point systems are being introduced. FIG. 5 shows, for example, “HACCP system in Japan's food industry, 22” J. Antibact.
It is the schematic of the conventional hygiene management system of this kind described in Antifung. Agent. Vol.27, No. 9, pp, 615-620, 1999.

[0003] In this system, measurement data such as pH, temperature, humidity, moisture content, organic matter content, and the like concerning a sanitary management target from various sensors S, and the relation between these data stored in advance in a database 51 and contamination. Based on the data constructed in the past, the arithmetic unit 50 manages the contamination of the microorganisms, and when it is determined that there is an abnormality, performs a display alarm 52, and performs a sterilization operation 53 according to the degree thereof. In such a space, the sterilization work was carried out at a time when no one was present, such as at night.

[0004]

In the conventional sanitary management system as described above, microbial contamination is monitored by indirect information such as humidity, so that it is inferior in safety and efficiency. In addition, monitoring by indirect information is enormous. Data was needed.

Further, there is another problem that the apparatus for monitoring contamination and the apparatus for performing sterilization work are not interlocked with each other, so that it is not possible to promptly proceed to sterilization processing when microbial contamination occurs.

[0006] Furthermore, since the sterilization operation is limited to the space and time where there are no people, there is a problem in operation efficiency and safety.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problems, and has as its object to provide a sanitary management system capable of judging a contamination status based on the presence of contaminants and performing sterilization according to the contamination.

[0008]

SUMMARY OF THE INVENTION In view of the above-mentioned object, the present invention provides a detecting unit for directly detecting the presence of contaminants requiring sterilization, and performs a predetermined arithmetic processing based on the detection result of the detecting unit. A management unit that compares the data with pre-stored data and outputs a control signal corresponding to the contaminant specified based on the final calculation result; and sterilization of the contaminant locally according to the control of the management unit. And a sterilization unit that performs the operation in a limited manner.

The sanitary management system according to claim 1, wherein at least a part of the detecting unit, the managing unit and the sterilizing unit is movable.

The hygiene management system according to claim 1 or 2, wherein at least a part of the detection unit, the management unit, and the sterilization unit are integrally formed.

The sanitary control system according to any one of claims 1 to 3, further comprising an injection device for spraying gas or liquid to remove contaminants attached to the sanitary control target. It is in.

[0012] Preferably, the apparatus further comprises an injection device for spraying water in a mist state in order to wet contaminants adhering to the sanitary control object and obtain a solution recovered therefrom. Item 4. The sanitary management system according to any one of Items 1 to 3.

Further, the sterilizing section has an exhaust / discharge solution section for discharging gas or solution for sterilization to a portion requiring sterilization, and the exhaust / discharge solution section further sprays gas or liquid to perform sanitary control. The sanitary management system according to any one of claims 1 to 3, wherein contaminants attached to the target are also peeled off.

Further, the sterilizing section has an exhaust / drain solution section for discharging gas or solution for sterilization to a portion requiring sterilization, and the exhaust / drain solution section further sends water in a mist form to maintain hygiene. The hygiene management system according to any one of claims 1 to 3, wherein the object is wetted so that a solution can be obtained therefrom.

[0015] The detection and detection of the presence and quantity of the contaminants semi-quantitatively based on parameters strongly correlated with the presence of the contaminants based on any one of pH, temperature, humidity, water content, and organic content or a combination thereof. The hygiene management system according to any one of claims 1 to 3, wherein a unit is provided in place of the detection unit.

Further, information on any one or a combination of these, such as the number of bacteria, the amount of sterilization, the detected spatial position and the time thereof, in the sanitary management system according to any one of claims 1 to 8 is used as a hazard analysis important control point. The hygiene management system is characterized in that the information is taken in as information.

[0017]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiment 1 FIG. 1 is a diagram showing a configuration of a sanitary management system according to an embodiment of the present invention. In the figure, 1 is a suction / absorption solution section, 2 is a cell collection section, 3
Is a collection cell, 4 is an exhaust / discharge solution after collection, 5 is a cell detection section, 6 is an input signal receiving section for an output signal from the cell detection section 5, 7 is a storage circuit, and 8 is a record. Circuit, 9 is an arithmetic circuit, 10
Is an output signal conversion unit to a sterilization unit, 11 is a sterilization control unit, 12
Is a sterilizing section, 13 is an air / solution supply section, 14 is an exhaust /
The drainage unit 15 is an integrated sanitary management system.

In FIG. 1, the concentration of bacterial cells measured by a detecting unit including an intake / absorbing solution unit 1, a bacterial cell collecting unit 2, an exhaust / exhausted solution unit 4 after collection, and a bacterial cell detecting unit 5 are shown. Bacterial activity signals are converted to signals that can be communicated wirelessly or wired, such as electricity or light.
(In the present embodiment, an electric signal may be used because it is an integrated system.) This is indicated by a broken line range, and is managed by the input signal receiving unit 6, the storage circuit 7, the recording circuit 8, the arithmetic circuit 9, and the output signal converting unit 10. A predetermined control signal is selected by processing in the section. The selected control signal is sent to a sterilization section comprising a sterilization control section 11, a sterilization action section 12, an air / solution supply section 13 and an exhaust / drainage solution section 14, and the sterilization section supplies a gas or solution having a sterilization power according to the control signal. Is discharged, and a sterilization process is performed on a portion requiring sterilization. FIG.
Here, as an example, a case where these are configured as an integrated system is shown.

The air or solution in the region to be monitored for microbial contamination is collected using a suction / absorption solution unit 1 comprising a delivery pipe and a pump having a suction / absorption solution function and a bacterial cell collection unit 2.
Transport to The collection unit 2 physically or chemically collects bacteria from air or a solution using a membrane filter or a chemical and collects the collected bacteria as a collection bacteria 3. The collected air and solution are exhausted and discharged. Discharge from 4.

As for the detection of bacteria by the detection unit 5, a device capable of converting the number of bacteria and the activity of the bacteria into an electric signal can be used.
When the number of bacteria is 10 ⁵ or more per 1 ml, the method of measuring absorption in the visible region, the method of measuring electrical impedance, and the method of measuring substances that change with A method for measuring the amount of chemical substances (e.g., the amount of generated carbon dioxide and hydrogen peroxide, the amount of oxygen consumed, or the pH), and a method of introducing a dye that reacts with a substance involved in microbial metabolism and measuring the optical change by absorbance It is composed of a detector using such as.

When the number of cells is 10 ⁵ or less, a method of concentrating on a membrane or the like and increasing the number of bacteria by culturing to measure by the above method, an antigen-antibody, a vector phage, a fluorescent enzyme substrate,
It consists of a detector that uses a method of measuring fluorescence by attaching a fluorescent dye to bacterial cell membranes, proteins, DNA, and the like, and a chemiluminescent method of emitting a fluorescent substance by chemical energy using an enzymatic reaction. Above those mentioned general methods, there are also those requiring concentration and culture even 10 ⁵ or more. Thereby, bacteria and microorganisms such as floating bacteria, falling bacteria, and adherent bacteria, and contaminants such as contaminants are detected.

As for the management unit, C
A predetermined arithmetic processing of a signal from the detection unit is performed by an arithmetic circuit 9 including a PU and a logic circuit.
Is compared with data for specifying bacteria and microorganisms stored in the storage circuit 7 composed of a memory via the CPU, and a control signal corresponding to the bacteria and microorganisms specified based on the final calculation result is generated. Output to the sterilization section.

The sterilizing section, in particular, the section including the sterilizing control section 11 and the sterilizing action section 12 includes negative ion / ozone combined sterilization, ozone gas, ozone fog, ozone + UV, ozone + hydrogen peroxide, and ozone-containing ice water ( When the active species (OH radicals, reactive oxygen species, negative ion species, etc.) necessary for sterilization use harmful substances such as water and oxygen that exist in nature, such as snow and ice fragments. It is composed of things that have the function of generating things that include things that change with constants. A time constant between 0.1 seconds and 60 minutes, preferably between 0.5 seconds and 10 minutes is suitable.
In the form of snow or ice, the active species is retained in the solid as it is, and thus the above time constant indicates the time since the active species was released from the confined space.

The sterilizing section is capable of stopping and suppressing the activity of microorganisms and fungi, and is particularly configured to be capable of sterilizing locally by limiting the sterilizing range.

Embodiment 2 FIG. 2 is a diagram showing a configuration of a sanitary management system according to another embodiment of the present invention.
In FIG. 2, the hygiene management system integrated in FIG.
Is divided into For example, when the sterilization time is shorter than the detection time, if the detection unit 17 is fixed and the sterilization unit 19 is configured to be movable, the sterilization unit 19 moves upon receiving signals from the plurality of installed detection units 17. , A predetermined place can be sterilized and moved to the next sterilization point, and sanitary management can be performed at a lower cost than installing the sterilization unit 19 individually.

In the case where the measurement by the detection unit 17 is fast and the sterilization process takes a longer time than the detection by the detection unit 17,
If the detection unit 17 can be moved similarly, the detection unit 1
7 can be reduced, and hygiene management can be performed at lower cost than placing detection units at all points.

In general, there are many parts where hygiene management is deteriorated, which is out of reach of humans and inadequate for cleaning.
The provision of the moving function enables the hygiene management of a portion that cannot be manually operated.

Further, in terms of hygiene management, production and packaging of foods, etc.
When a process such as transportation is performed in an unattended clean room or clean booth, the device enters a space where no one can enter, and the state of contamination in that area can be grasped.

In each of the above cases, the detection unit 15,
2 between the management unit 16 and the sterilization unit 17
The signal transmission indicated by 1 can be radio signal transmission using electromagnetic waves or light.

Embodiment 3 Further, in the second embodiment, the movable part differs depending on the use condition. However, if the system is configured such that the management unit 18 is integrated with the moving unit or integrated with the fixed unit, the overall size can be reduced and the information transmission can be reduced. For this purpose, communication wiring and the like can be reduced and common parts such as a power supply can be shared, so that cost and work space can be efficiently used.

Embodiment 4 FIG. 1 and 2 show a configuration in which external air or a solution is simply sucked in to collect external bacterial cells. However, as for the presence state of the bacterial cells, they adhere to dirt, dust, walls, particulate matter, and the like. In some cases, these bacteria are accumulated in narrow gaps, and it is necessary to understand these bacteria as contamination status. In this case, it is necessary to spray a gas or a solution to peel off the bacteria and the like, and forcefully take in the bacteria itself or the substance to which the bacteria have adhered to the detection unit 17, which requires a gas ejection device or a liquid ejection device. Therefore, as shown in FIG. 3, a system is configured by combining the suction / absorption solution unit 1 for taking in the external gas and solution of the detection units (1 to 5) with the injection device 24 for injecting gas or liquid or the like. In addition, foreign substances 23 such as bacteria or microorganisms attached to the sanitary control object 22 can be separated and detected as shown at 26, and it is possible to grasp the contamination status of the bacteria more suited to the actual situation, thereby further ensuring safety. It is possible to provide a highly hygienic management system.

Embodiment 5 Further, regarding the forced collection of bacteria described in the fourth embodiment, instead of injecting gas or solution, there is a method of spraying water in the form of a mist to collect foreign matter adhering to the sanitary control target 22. May be valid. For example, when there is a partition plate or a wall between the injection device 24 and the sanitary control object 22, and it is difficult to physically collect bacteria (or microorganisms) by gas or water pressure, the water is removed. It is effective to feed the mist, wet the sanitary control object 22, and take the solution collected therefrom into the detection unit.

Embodiment 6 FIG. In the fourth embodiment, the hygiene management system combined with the injection device for injecting gas or liquid is shown.
This means that this part is controlled so as not to have a sterilizing effect, and is used as an injection device that injects gas or liquid without sterilizing. If sterilization is required, the sterilizing section has a sterilizing function. With such a control, the contaminated bacteria can be forcibly collected without using a separate injection device, so that the hygiene management system can be provided at low cost and the size can be reduced.

Embodiment 7 Further, the portion of the exhaust / drain solution unit 14 of the sterilizing unit (11 to 14) for injecting gas or liquid shown in the sixth embodiment is sprayed with the water shown in the fifth embodiment in a mist state, and is subjected to sanitary management. Embodiments 5 and 6 may be replaced with an injection device for collecting foreign matter-containing substances attached to the object 22.
Is obtained.

Embodiment 8 FIG. In this embodiment, instead of the means for measuring the microorganism itself relating to the bacteria detection unit of each of the above embodiments, as shown in FIG.
The detector is replaced with a detection unit that semi-quantitatively grasps any one of H, temperature, humidity, moisture amount, and organic matter amount or a combination thereof. Therefore, the detection unit is a pH meter 27, a thermometer 2
8, hygrometer 29, moisture meter 30, and organic matter meter 3
Consists of one.

In this case, the storage circuit 7 of the management unit 18 stores
It is necessary to store the correlation between each of the above measured values and the degree of bacterial contamination as a database. By comparing the stored information with the signal strengths of the input signals from the various sensors and the outputs of the multivariate analysis, etc., in the arithmetic circuit 9, an outline of the degree of bacterial contamination is grasped, and the sterilizing unit 19 is determined based on this amount. Operate in a predetermined mode.

In this embodiment, since the contamination of the bacterium itself is not directly measured, the detection sensitivity of the contamination is inferior to those of the first to seventh embodiments. This is effective for applications where it is necessary to quickly ascertain the bacterial contamination status.

Embodiment 9 In addition, HAC that manages, records, and saves sanitary conditions based on signals from various sensors and air conditioning equipment that are currently spread as food hygiene management systems.
By introducing the sanitary control system of the present invention into a CP (Hazard Analysis Critical Control Point) system, it is possible to quickly and accurately determine only the necessary parts based on the contamination status of the bacteria itself. Since limited sterilization is also possible, it is possible to construct a hygiene management system that is highly safe and effective for energy saving.

That is, the information of any one of the number of bacteria, the amount of sterilization treatment (time / concentration), the detected spatial position and the time thereof, or a combination thereof in the system of each of the above embodiments or a hazard analysis is performed. A hygiene management system incorporated as important control point information.

In the above embodiments, bacteria and microorganisms are particularly described. However, the present invention is not limited to this, and can be applied to any contaminants requiring sterilization.

[0041]

As described above, according to the present invention, a detection unit for directly detecting the presence of contaminants requiring sterilization, and a predetermined calculation process is performed based on the detection result of the detection unit, and the data is stored in advance. A management unit that compares the data and outputs a control signal corresponding to the contaminant identified based on the final calculation result, and locally controls the sterilization range of the contaminant according to the control of this management unit. The sanitary management system is characterized by including a sterilizing section for performing the process, so that a contaminated portion can be found early and sterilized. In addition, it is possible to intensively monitor and sterilize places that are easily contaminated in advance. Since it is not necessary to sterilize the entire space, and there is no need to sterilize the useless space with little effect on humans, it is possible to reduce costs and energy such as air transportation and water transportation. Therefore, a hygienic management system with low cost, energy saving, and high safety can be configured.

Further, since at least a part of the detection unit, the management unit, and the sterilization unit are configured to be movable, it is possible to sterilize at a necessary place when necessary, and it is quick, energy saving and low cost.

Further, since at least a part of the detection section, the management section and the sterilization section are integrally formed, the apparatus can be more compactly realized.

In addition, since an injection device for spraying gas or liquid to remove contaminants adhering to the sanitary control object is further provided, forcible collection of contaminating microorganisms existing in dust, dirt, and the like. As a result, microbial contamination that cannot be detected by floating or falling bacteria can be reliably detected and sterilized.

Further, since the apparatus further includes an injection device for wetting the contaminants adhering to the object to be sanitized and feeding water in a mist state to obtain a solution recovered therefrom, the contaminant adheres to the object. Microorganisms can be easily recovered, and the contamination state of attached bacteria can be reliably detected.

Further, the sterilizing section has an exhaust / discharge solution section for discharging gas or solution for sterilization to a portion requiring sterilization, and this exhaust / discharge solution section further sprays gas or liquid to perform sanitary control. Since the contaminants attached to the target are also peeled off, the system can be configured by using the part that sends air in common and switching between having or not having a sterilization function, so a separate injection device The cost, size, and energy saving can be further promoted as compared with the case of providing.

Further, the sterilizing section has an exhaust / drain solution section for discharging gas or solution for sterilization to a portion requiring sterilization. Since the solution can be obtained by wetting the object, the system can be configured by sharing the part that sends the solution and switching between having and not having a sterilization function, so it is possible to jet separately The cost, size, and energy saving can be further promoted as compared with the provision of the device.

Further, the detection and detection of the presence and quantity of the contaminants semi-quantitatively based on parameters strongly correlated with the presence of the contaminants based on any one of pH, temperature, humidity, water content, and organic content, or a combination thereof. Since the unit is provided in place of the detection unit, certainty as the detection of microorganisms is sacrificed, but the presence of the microorganisms can be estimated earlier than the detection of the microorganisms themselves, and the sterilization treatment can be performed quickly.

The number of bacteria in each of the above sanitary management systems,
Since a sanitary management system was configured to take in information on any one of these or a combination of these, such as the amount of sterilization, the detected spatial position and the time, as information on the critical control points for hazard analysis, microbial contamination information A sanitary management system based on the system itself can be constructed, providing a safer and faster system, and based on these recorded data, upgrading the system database and the storage circuit database of the sanitary management system And safety and speed can be further improved.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of a particularly integrated sanitary management system according to an embodiment of the present invention.

FIG. 2 is a configuration diagram of a sanitary management system according to another embodiment of the present invention, particularly of a separate type.

FIG. 3 is a block diagram of a sanitary management system according to still another embodiment of the present invention, particularly having a function of forcibly collecting bacteria.

FIG. 4 is a configuration diagram of a sanitary management system according to still another embodiment of the present invention, particularly in which a detection unit is replaced with a plurality of sensors.

FIG. 5 is a schematic diagram of a conventional sanitary management system of this kind.

[Explanation of symbols] 1 Inhalation / absorption solution section, 2 Cell collection section, 3 Collection cells,
4 Exhaust / drain solution section after collection, 5 detection section, 6 input signal receiving section, 7 storage circuit, 8 recording circuit, 9 arithmetic circuit,
Reference Signs List 10 output signal conversion unit, 11 sterilization control unit, 12 sterilization operation unit, 13 air / solution supply unit, 14 exhaust / drainage solution unit, 15 integrated sanitary management system, 17 detection unit, 1
8 management section, 19 sterilization section, 24 injection device, 27p
H meter, 28 thermometer, 29 hygrometer, 30 moisture meter, 31 organic matter meter.

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI theme coat ゛ (Reference) A61L 2/24 A61L 2/24 C12M 1/34 C12M 1/34 B (72) Inventor Isamu Hirashiki Chiyoda, Tokyo 2-3-2 Marunouchi-ku, Mitsui Electric Co., Ltd. (72) Inventor Mamiko Toda 2-3-2 Marunouchi, Chiyoda-ku, Tokyo F-term in Mitsubishi Electric Co., Ltd. 4B021 LT01 LT06 LT08 MC01 MK13 MK15 MP02 MP03 MP06 MP10 4B029 AA07 BB02 BB06 CC01 CC02 FA01 4C058 AA01 BB06 BB07 BB09 CC04 CC05 CC10 DD01 DD02 DD05 DD13 EE26 JJ07 JJ14 JJ22 JJ24 JJ29 KK02

Claims (9)

[Claims] 1. A detection unit for directly detecting the presence of contaminants requiring sterilization, and a predetermined calculation process is performed based on the detection result of the detection unit, the data is collated with data stored in advance, and a final calculation is performed. A control unit that outputs a control signal corresponding to the contaminant identified based on the result; and a sterilization unit that locally sterilizes the contaminant according to the control of the management unit and locally limits a sterilization range. Characterized hygiene management system. 2. The hygiene management system according to claim 1, wherein at least a part of the detection unit, the management unit, and the sterilization unit are configured to be movable. 3. The apparatus according to claim 1, wherein at least a part of the detection unit, the management unit, and the sterilization unit are integrally formed.
Or the sanitary management system according to 2. 4. The sanitary management system according to claim 1, further comprising an injection device for spraying gas or liquid to remove contaminants attached to the sanitary management target. . 5. The apparatus according to claim 1, further comprising an injection device for feeding water in a mist state to wet contaminants adhered to the sanitary control object and obtain a solution recovered therefrom. Item 4. The hygiene management system according to any one of Items 1 to 3. 6. The sterilization section has an exhaust / drain solution section for discharging a gas or a solution for sterilization to a portion requiring sterilization, and the exhaust / drain solution section further sprays a gas or a liquid to sanitary control. The sanitary management system according to any one of claims 1 to 3, wherein contaminants attached to the target are also peeled off. 7. The sterilizing section has an exhaust / drain solution section for discharging a gas or a solution for sterilization to a portion requiring sterilization, and the exhaust / drain solution section further sends water in a mist state to perform sanitary management. The hygiene management system according to any one of claims 1 to 3, wherein the object is wetted so that a solution can be obtained therefrom. 8. Determine the presence or quantity of a contaminant from parameters having a strong correlation with the presence of the contaminant, such as pH, temperature, humidity, water content,
The hygiene management system according to any one of claims 1 to 3, wherein a detection unit for semi-quantitatively grasping the amount of any of the organic substances or a combination thereof is provided in place of the detection unit. 9. A hazard analysis important control point using information on any one or a combination of the number of bacteria, the amount of sterilization treatment, the detected spatial position and the time thereof in the sanitary management system according to claim 1 to 8. A hygiene management system characterized in that it is taken in as information.