KR20210144243A - Sterilization system for closed space using ultraviolet ray - Google Patents

Abstract

The present invention relates to a system for sterilizing an unventilated closed space using UV, and the objective of the present invention is to provide a system enabling sterilization and disinfection of infectious and contamination sources in an unventilated closed space which is public multi-use facilities. According to one embodiment of the present invention, the system for sterilizing an unventilated closed space using UV comprises: a UV lamp for the sterilization and disinfection of an unventilated closed space; an object detection sensor that detects the motion of an object in an unventilated closed space and outputs an object detection signal when the motion of the object is detected; and a controller that controls at least one among forced turn-off operations and periodic turn on/off operations of the UV lamp based on a preset operation algorithm depending on whether or not the object detection signal is received.

Description

Closed space sterilization system using UV {STERILIZATION SYSTEM FOR CLOSED SPACE USING ULTRAVIOLET RAY}

An embodiment of the present invention relates to a closed space sterilization system using UV.

The World Health Organization (WHO) distinguishes between the first human infection and the viral transfer of influenza as a six-step process leading to a viral pandemic.

This is because there are many cases where the virus is transmitted from animals to humans, and the infection of the new virus ends as a global epidemic through the direct spread of the animal-infecting virus to humans.

In order to cope with the spread of infectious diseases in Korea, the government has set the 'National Epidemic Disaster Disaster Stage' with 4 stages of 'Attention-Caution-Vigilance-Severe'.

In the event of an outbreak of a new virus-related infectious disease abroad or an infected patient of unknown origin in Korea, the 'interest' stage is activated to monitor signs.

When a new infectious disease from abroad is introduced into Korea or a new infectious disease occurs, it is upgraded to 'caution'.

In the case of an epidemic spreading to other regions, it is at the 'warning' stage, and a 24-hour emergency quarantine system is maintained by strengthening the countermeasure headquarters and operating a pan-government cooperation system.

As interest in infection in public housing where many people live is increasing, infection control should also be carried out in public housing. In particular, elevators in public houses are installed in high-rise buildings to vertically move people and goods, and are essential not only in public facilities but also in residential complexes such as apartments and houses. However, it is not easy to sterilize and ventilate this limited space used by a large number of people, and for example, there are cases in which disease occurs due to infection in an elevator.

On the other hand, in the case of elevator passengers going to work or leaving work, fine dust or viruses buried outside may be collected in the elevator, causing great health problems for passengers.

Publication No. 10-2019-0061183 (published date: June 05, 2019) Registered Patent Publication No. 10-2082571 (Registration Date: February 21, 2020)

An embodiment of the present invention provides a closed space sterilization system using UV capable of sterilizing and disinfecting infectious and contaminant sources in a closed space with a large number of unspecified multi-use facilities.

A closed space sterilization system using UV according to an embodiment of the present invention includes: a UV lamp for sterilization and disinfection of a closed space; an object detection sensor that detects a motion of an object in an enclosed space and outputs an object detection signal when the motion of the object is detected; and a controller for controlling at least one of a forced turn-off and a periodic turn-on/off operation of the UV lamp based on a preset operation algorithm according to whether the object detection signal is received.

In addition, it may further include an operation indicator installed on at least one side of both sides of the UV lamp, connected to the controller and turned on when receiving an off signal output from the controller when the UV lamp is in an off state.

In addition, the operation algorithm may include, when the object detection signal is received, a first control mode for turning off the UV lamp or controlling to maintain an off state of the UV lamp; and if the object detection signal is not received, the UV lamp is turned on for a preset second time after delaying for a first preset time, and after operating the UV lamp for the second time, a preset third The second control mode may include a second control mode in which an operation routine of turning off the UV lamp for a period of time is repeated until the object detection signal is received.

In addition, the method further comprises a humidity sensor that measures the humidity in the enclosed space and outputs it to the controller, wherein the controller compares the humidity measurement value received from the humidity sensor with a preset reference humidity range to determine the humidity measurement value as the reference When the humidity range is exceeded, the operation maintenance time of the UV lamp may be increased, and if the humidity measurement value is less than the reference humidity range, the operation maintenance time of the UV lamp may be decreased.

In addition, further comprising an Internet communication module connected to the Internet communication network to receive a humidity data value from an external server and transmit it to the controller, wherein the controller is configured to measure the humidity data value received from the Internet communication module and a preset reference humidity range. In comparison, when the humidity data value exceeds the reference humidity range, the operation maintenance time of the UV lamp is increased, and when the humidity measurement value is less than the reference humidity range, the operation retention time of the UV lamp can be reduced .

In addition, further comprising an Internet communication module connected to an external server through an Internet communication network, receiving an on/off control value of the UV lamp from a manager communication terminal and transmitting it to the controller, the controller from the Internet communication module According to the received on/off control value, the operation duration of the UV lamp may be adjusted, and the forced turn on/off operation may be controlled.

In addition, it is installed on the side of the door to detect whether or not to enter the enclosed space, further comprising an access detection sensor for transmitting an access detection signal to the controller when the entrance is detected, the controller, the number of reception of the access detection signal in advance Counts within the set weekly time period, and if the number of occupants per hour exceeds the preset increment, the duration of operation of the UV lamp is reduced; time can be increased.

In addition, the controller may calculate and accumulate a statistical value for the number of occupants per hour in a preset period unit, and adjust the operation maintenance time of the UV lamp based on the accumulated statistical value.

In addition, connected to the user communication terminal through pairing, and further comprising a wireless communication module for transmitting a terminal connection completion signal to the controller when connected to the user communication terminal, the controller receives the terminal connection completion signal when the UV You can force the lamp to turn off.

According to the present invention, it is possible to provide a closed space sterilization system using UV capable of sterilizing and disinfecting infectious and contamination sources in a closed space with a large number of unspecified multi-use facilities.

1 is a front perspective view showing the external configuration of a closed space sterilization system using UV according to an embodiment of the present invention.
2 is a rear perspective view showing the external configuration of a closed space sterilization system using UV according to an embodiment of the present invention.
3 is an enlarged partial perspective view of the left end of FIG. 1 .
4 is a block diagram showing the detailed configuration of a closed space sterilization system using UV according to an embodiment of the present invention.
5 is a flowchart illustrating a basic operation configuration using an object detection sensor of a closed space sterilization system using UV according to an embodiment of the present invention.
6 is a flowchart illustrating a UV lamp on/off time control method of a closed space sterilization system based on a humidity measurement value measured inside according to an embodiment of the present invention.
7 is a flowchart illustrating a UV lamp on/off time control method of a closed space sterilization system based on a humidity data value received from the outside according to an embodiment of the present invention.
8 is a flowchart illustrating a UV lamp on/off time control method of a closed space sterilization system based on the number of entrants counted inside according to an embodiment of the present invention.

Terms used in this specification will be briefly described, and the present invention will be described in detail.

The terms used in the present invention have been selected as currently widely used general terms as possible while considering the functions in the present invention, but these may vary depending on the intention or precedent of a person skilled in the art, the emergence of new technology, and the like. In addition, in a specific case, there is a term arbitrarily selected by the applicant, and in this case, the meaning will be described in detail in the description of the corresponding invention. Therefore, the term used in the present invention should be defined based on the meaning of the term and the overall content of the present invention, rather than the name of a simple term.

When a part "includes" a certain element throughout the specification, this means that other elements may be further included, rather than excluding other elements, unless otherwise stated. In addition, terms such as "...unit" and "module" described in the specification mean a unit that processes at least one function or operation, which may be implemented as hardware or software, or a combination of hardware and software. .

Hereinafter, with reference to the accompanying drawings, embodiments of the present invention will be described in detail so that those of ordinary skill in the art can easily carry out the embodiments of the present invention. However, the present invention may be embodied in many different forms and is not limited to the embodiments described herein. And in order to clearly explain the present invention in the drawings, parts irrelevant to the description are omitted, and similar reference numerals are attached to similar parts throughout the specification.

1 is a front perspective view showing the external configuration of a closed space sterilization system using UV according to an embodiment of the present invention, and FIG. 2 is a rear perspective view showing the external configuration of a closed space sterilization system using UV according to an embodiment of the present invention. 3 is an enlarged partial perspective view of the left end of FIG. 1 , FIG. 4 is a block diagram showing a detailed configuration of a closed space sterilization system using UV according to an embodiment of the present invention, and FIG. 5 is an embodiment of the present invention It is a flowchart showing a basic operation configuration using an object detection sensor of a closed space sterilization system using UV according to an example, and FIG. 6 is a closed space sterilization system based on a humidity measurement value measured inside according to an embodiment of the present invention It is a flowchart shown to explain a method for controlling the UV lamp on/off time of It is a flowchart shown to explain, and FIG. 8 is a flowchart shown to explain a UV lamp on/off time control method of a closed space sterilization system based on the number of entrants counted inside according to an embodiment of the present invention.

1 to 4 , the closed space sterilization system 1000 using UV according to an embodiment of the present invention includes a UV lamp 100 , an object detection sensor 200 , a controller 300 , and an operation indicator 400 . ), a humidity sensor 500 , an Internet communication module 600 , an access detection sensor 700 , a wireless communication module 800 , and at least one of a power supply unit 900 .

The UV lamp 100 is a means for performing sterilization and disinfection in a closed space such as an elevator installed in a public house or building. A typical UV wavelength range consists of 100nm to 400nm, 100nm to 280nm for UV-C (short wave), 280nm to 315nm for UV-B (medium wave), and 315nm to 400nm for UV-A (short wave). long wave). As a means for generating the artificial wavelength of the UV lamp 100 according to the present embodiment, it is appropriate to use 253.7 nm UV light, which has the strongest sterilization power among UV-C (short wave) UV rays. Sterilization by ultraviolet rays is effective against most bacteria, such as bacteria, viruses, and mold, and it is possible to sterilize by turning on the sterilization lamp, so the method of use is simple and installation and maintenance costs are economical. Utilization of a sterilization lamp such as the UV lamp 100 is utilized in fields requiring a high-level sterilization method such as food, medical care, cosmetics, and the electronics industry as well as indoor air sterilization.

The UV lamp 100 may be manufactured in various forms, but as shown in FIGS. 1 and 2 , it is made of a substantially rectangular parallelepiped and installed horizontally on the lower part (or upper part) of the housing 1 that can be installed on a wall or ceiling. UV rays for sterilization and disinfection can be evenly irradiated into an enclosed indoor space.

The object detection sensor 200 is installed in front of the housing 1 to detect the movement of an object (human, animal) in an enclosed indoor space, and sends an object detection signal to the controller 300 when the movement of the object is detected. can be printed out. The object detection sensor 200 of this embodiment can generally apply an infrared human body detection sensor (PIR: Passive Infrared Ray), and this human body detection sensor detects a change in temperature when the movement of radiant heat emitted from the body temperature is detected. The charge is induced in proportion to the amount of change and amplified to use it as an output signal.

The controller 300 is installed inside the housing 1 as shown in FIG. 2 and based on a preset operation algorithm according to whether or not an object detection signal is received from the object detection sensor 200, the UV lamp 100 ) may control at least one of a forced turn-off operation and a periodic turn-on/off operation.

More specifically, the basic control mode of the operation algorithm may include a first control mode (Control Mode 1) and a second control mode (Control Mode 2) as shown in FIG. 5 .

5, when an object detection signal is received from the object detection sensor 200 (S51), the controller 300 turns off the UV lamp 100 (S52) or turns off the UV lamp 100 (S52). may be operated in a first control mode (Control Mode 1) for controlling to be maintained. As such, the controller 300 may turn on the operation indicator 400 when the UV lamp 100 is turned off (S53).

That is, if the controller 300 detects that there is a moving object in the enclosed indoor space, if the UV lamp 100 was operating immediately before that, it forcibly stops the operation, and if the UV lamp 100 is off You can control it to keep it that way.

5 , when an object detection signal is not received from the object detection sensor 200 (S51), the controller 300 delays for a first preset time (S54) and then sets the UV lamp for a preset second time period (S54). Turning on (S55) and operating the UV lamp 100 for a second time (S56), and then turning off the UV lamp 100 for a third preset time (S57, S58) The routine may be operated in a second control mode (Control Mode 2) that repeats until an object detection signal is received.

For example, when it is detected that there is no moving object in the enclosed indoor space, the controller 300 delays the operation of the UV lamp 100 to maintain the off state of the UV lamp 100 for about 1 to 300 seconds. After this, the UV lamp 100 is controlled to be turned on, and after maintaining this operating state for about 1 to 100 minutes, the UV lamp 57 is turned off, but it can be turned off for about 10 to 600 minutes, and the time is After completion, the UV lamp 100 may be operated again for sterilization for about 1 to 100 minutes.

6, the controller 300 compares the humidity measurement value received from the humidity sensor 500 with a preset reference humidity range, and when the humidity measurement value exceeds the reference humidity range, the operation of the UV lamp 100 The holding time is increased, and when the humidity measurement value is less than the reference humidity range, it is possible to reduce the operating holding time of the UV lamp 100 . Through this, it is possible to perform more active sterilization and disinfection by quickly blocking the propagation of viruses and bacteria in a high-humidity environment in a closed space.

7, the controller 300 compares the humidity data value received from the Internet communication module 600 with a preset reference humidity range, and when the humidity data value exceeds the reference humidity range (S71), the UV lamp Increase the operation holding time (S72), if the humidity measurement value is less than the base reference humidity range (S73), it is possible to reduce the operation holding time of the UV lamp 100 (S74), otherwise the UV lamp (100) It can maintain the on/off operation holding time of Through this, it is possible to perform more active sterilization and disinfection by quickly blocking the propagation of viruses and bacteria in a high-humidity environment in a closed space.

As such, the controller 300 may actively adjust the on/off operation holding time of the UV lamp 100 by using one of the humidity measurement value and the humidity data value. That is, the controller 300 activates the humidity sensor 500 or the Internet communication module 600 according to the basic setting of the closed space sterilization system 1000 according to the present embodiment to obtain a humidity measurement value or a humidity data value. It is possible to perform an operation of adjusting the on/off operation holding time of the UV lamp 100 by receiving . However, both the humidity sensor 500 and the Internet communication module 600 can be activated, and in this case, the on/off operation maintenance time of the UV lamp 100 is reduced by reflecting the value preferentially input to the controller 300 . control action can be performed.

The controller 300 may adjust the operation holding time of the UV lamp 100 according to the on/off control value received from the Internet communication module 600 and control the forced turn on/off operation. Through this, the closed space sterilization system 1000 of this embodiment is connected through the Internet communication network, and the on-state maintenance time and the off-state maintenance time of the UV lamp 100 from the user communication terminal 20 (or the manager communication terminal) are remotely controlled. It can be freely adjusted, and if necessary, the on/off of the UV lamp 100 can also be controlled remotely.

The controller 300 counts the number of times of reception of the access detection signal received from the access detection sensor 700 within a preset weekly time zone, and when the number of occupants per hour exceeds the preset increment, the UV lamp 100 It is possible to reduce the operation maintenance time of the UV lamp 100 , and to increase the operation maintenance time of the UV lamp 100 when the number of occupants per hour is less than a preset increase value.

For example, the period from 7:00 a.m. to 7:00 p.m., which uses the elevator the most, may be set as the daytime time zone. counts, calculates how much the total number of people counted every 1 to 2 hours has increased more than the basic number of people, as shown in FIG. 8, and compares the calculated value with a preset number of people to enter (S81) The operation maintenance time of the UV lamp 100 can be reduced as the number of people flow is large (S82), and if the calculated value is less than a preset increase in occupants (S83), the UV lamp 100 as the number of people flow is small (S83) ) by increasing the operation maintenance time (S84) to perform more sterilization and disinfection operations in a time zone with a small number of moving people, otherwise the on/off operation maintenance time of the UV lamp 100 can be maintained as it is ( S85).

The controller 300 may calculate and accumulate statistical values for the number of occupants per hour in a preset period unit, and adjust the operation maintenance time of the UV lamp 100 based on the accumulated statistical values.

For example, referring to FIG. 8 , an average value for each time period is calculated by accumulating the daily number of visitors counting values for about a week, and the average value calculated for each time period is compared with the increase number of visitors (S86), and the UV lamp (100 ) can be adjusted by determining whether to increase or decrease the on/off time, respectively (S87)

The controller 300 may forcibly turn off the UV lamp 100 upon receiving a terminal connection completion signal generated during short-range wireless communication connection with the user communication terminal 20 from the wireless communication module 800 .

For example, when connecting through pairing between the user communication terminal 20 and the wireless communication module 800, the corresponding wireless communication terminal 800 transmits a terminal connection completion signal to the controller 300, and the controller 300 responds to this. The UV lamp 100 may be forcibly turned off or maintained in an off state. This is not because the UV lamp 100 is turned off by object detection generated when entering the elevator, but rather by recognizing a passenger approaching within about 10 m into the elevator in advance, the UV lamp ( 100) is configured to turn off.

The operation indicator 400 is installed on at least one side of both sides of the UV lamp 100 as shown in FIGS. 1 to 3 , is connected to the controller 300 , and the UV lamp 100 from the controller 300 ) may be turned on when receiving an off signal output when it is in an off state. That is, when the UV lamp 100 is turned off, the operation indicator 400 is turned on by the controller 300 to display an operation state, and the appearance of the operation indicator light from the outside is that the diffusion cover 410 is installed. (400) to be more clearly identified.

The humidity sensor 500 can measure the humidity in the enclosed space and output it to the controller 300 , and in this embodiment, the specific configuration of the humidity sensor 500 is not limited, and various methods and types of humidity sensors are available. can be applied.

The Internet communication module 600 may be connected to the Internet communication network to receive the humidity data value from the external server 10 and transmit it to the controller 300 . The Internet communication module 600 may include a plurality of input/output terminals, a Wi-Fi modem for transmitting and receiving data, a microcomputer, and the like, and in this embodiment, the specific configuration of the Internet communication module 600 is not limited, and various methods and forms are not limited thereto. of Internet communication module can be applied.

On the other hand, the external server has the same configuration as a typical web server in terms of hardware, and in terms of software, it is implemented through various types of languages such as C, C++, Java, Visual Basic, Visual C, etc. and is a program module that performs various functions. may include. In addition, it can be implemented using web server programs that are provided in various ways according to operating systems such as DOS, Windows, Linux, Unix, and Macintosh on general server hardware. have.

In addition, the external server is connected to the user communication terminal 20 through a network, and examples of such networks include RF, 3rd Generation Partnership Project (3GPP) network, Long Term Evolution (LTE) network, 5rd Generation Partnership Project (5GPP). Network, WIMAX (World Interoperability for Microwave Access) network, Internet, LAN (Local Area Network), Wireless LAN (Wireless Local Area Network), WAN (Wide Area Network), PAN (Personal Area Network), Bluetooth (Bluetooth) ) network, NFC network, satellite broadcasting network, analog broadcasting network, DMB (Digital Multimedia Broadcasting) network, etc., but are not limited thereto.

In addition, the user communication terminal 20 is PCS (Personal Communication System), GSM (Global System for Mobile communications), PDC (Personal Digital Cellular), PHS (Personal Handyphone System), PDA (Personal Digital Assistant), IMT (International Mobile) Telecommunication)-2000, CDMA (Code Division Multiple Access)-2000, W-CDMA (W-Code Division Multiple Access), Wibro (Wireless Broadband Internet) terminal, smartphone, smart pad, tablet PC (Tablet PC) as well as a mobile communication device such as a general PC may be included, a website or a dedicated application is installed to use the global B2B transaction service according to the present embodiment.

The access detection sensor 700 may be installed on the side of the door to detect whether or not to enter the enclosed space, and may transmit an access detection signal to the controller 300 when the entrance is detected. The entrance sensor 700 may individually recognize only the objects in the direction entering the enclosed space, and transmit the number of recognized objects to the controller 300 .

The wireless communication module 800 may be connected to the user communication terminal 20 through Bluetooth pairing, and may transmit a terminal connection completion signal to the controller 300 when connected to the user communication terminal 20 .

The power supply unit 900 is a means for supplying overall power to the closed space sterilization system 1000 by being connected to a power supply device in an enclosed space such as an elevator, and has a separate battery to operate for a long time without external power supply. can In this case, information on the remaining battery capacity may be transmitted through a dedicated application of the user communication terminal 20 possessed by an administrator or the like through the Internet communication module 600 or a text message.

What has been described above is only one embodiment for implementing the UV-using closed space sterilization system according to the present invention, and the present invention is not limited to the above embodiment, and as claimed in the claims below, the present invention Without departing from the scope of the present invention, it will be said that the technical spirit of the present invention exists to the extent that various modifications can be made by anyone with ordinary knowledge in the field to which the invention pertains.

1000: UV sterilization system for confined spaces
100: UV lamp
200: object detection sensor
300: controller
400: motion indicator
410: diffusion cover
500: humidity sensor
600: Internet communication module
700: entrance detection sensor
800: wireless communication module
900: power supply
1: housing
10: External Server
20: user communication terminal

Claims (9)

It relates to a UV sterilization system installed in a closed space equipped with an entrance door,
UV lamps for sterilization and disinfection of confined spaces;
an object detection sensor that detects a motion of an object in an enclosed space and outputs an object detection signal when the motion of the object is detected; and
Sealing using UV, characterized in that it comprises a controller for controlling at least one of the forced turn-off and periodic turn-on/off operation of the UV lamp based on a preset operation algorithm according to whether the object detection signal is received space sterilization system.
According to claim 1,
UV lamp installed on at least one side of both sides of the UV lamp, connected to the controller, and further comprising an operation indicator that is turned on when receiving an off signal output from the controller when the UV lamp is in an off state Confined space sterilization system using
According to claim 1,
The operation algorithm is
a first control mode for turning off the UV lamp or maintaining an off state of the UV lamp when the object detection signal is received; and
If the object detection signal is not received, the UV lamp is turned on for a preset second time after delaying for a first preset time, and after operating the UV lamp for the second time, a third preset time A closed space sterilization system using UV, characterized in that it includes a second control mode that repeats an operation routine of turning off the UV lamp for a period of time until the object detection signal is received.
According to claim 1,
Further comprising a humidity sensor that measures the humidity in the enclosed space and outputs it to the controller,
The controller is
When the humidity measurement value exceeds the reference humidity range by comparing the humidity measurement value received from the humidity sensor with a preset reference humidity range, the operation holding time of the UV lamp is increased, and the humidity measurement value is the reference humidity If it is less than the range, a closed space sterilization system using UV, characterized in that it reduces the operation holding time of the UV lamp.
According to claim 1,
Further comprising an Internet communication module connected to the Internet communication network to receive the humidity data value from an external server and transmit it to the controller,
The controller is
When the humidity data value exceeds the reference humidity range by comparing the humidity data value received from the Internet communication module with a preset reference humidity range, the operation holding time of the UV lamp is increased, and the humidity measurement value is the reference humidity range. If the humidity is less than the range, a closed space sterilization system using UV, characterized in that it reduces the operation holding time of the UV lamp.
According to claim 1,
Further comprising an Internet communication module connected to an external server through an Internet communication network, receiving an on/off control value of the UV lamp from a manager communication terminal and transmitting it to the controller,
The controller is
A closed space sterilization system using UV, characterized in that the operation holding time of the UV lamp is adjusted according to the on/off control value received from the Internet communication module, and the forced turn on/off operation is controlled.
According to claim 1,
It is installed on the side of the door to detect whether or not to enter the enclosed space, further comprising an entrance detection sensor that transmits an entrance detection signal to the controller when the entrance is detected,
The controller is
Counts the number of times of reception of the access detection signal within a preset weekly time zone, and when the number of occupants per hour exceeds a preset increment, the operation holding time of the UV lamp is reduced, and the increment of occupants per hour is a preset increase If the value is less than the value, the closed space sterilization system using UV, characterized in that increasing the operation holding time of the UV lamp.
8. The method of claim 7,
The controller is
A closed space sterilization system using UV, characterized in that by calculating and accumulating statistical values for the number of occupants per hour in a preset period unit, and adjusting the operation maintenance time of the UV lamp based on the accumulated statistical values .
According to claim 1,
Further comprising a wireless communication module connected to the user communication terminal through pairing, and transmitting a terminal connection completion signal to the controller when connected to the user communication terminal,
The controller is a closed space sterilization system using UV, characterized in that forcibly turning off the UV lamp when receiving the terminal connection completion signal.

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