Method for providing spatial sterilization function on basis of user movement and apparatus implementing same

Abstract

The present invention relates to a method for providing a spatial sterilization function on the basis of user movement and an apparatus implementing same. The method for providing a spatial sterilization function on the basis of user movement, according to an embodiment of the present invention, comprises the steps of: identifying, by a human body sensor of an apparatus, the occurrence of a detection event to generate a detection event notification message and to provide same to a control unit; extracting, by the control unit of the apparatus, distance information from the detection event notification message; and if the distance information is greater than a reference distance, controlling, by the control unit, the operation of a sterilization module of the apparatus according to a function mode of the apparatus.

Description

Method for providing a space sterilization function based on user movement and device for implementing the same

[0001] The present invention relates to a method for providing a spatial sterilization function based on user movement and a device for implementing the same.

[0002] Home appliances are placed in the space where users live and provide various functions. For example, appliances can obtain information about the user's living space through various functions, such as checking humidity or temperature.

[0003] As the functions of home appliances improve in this way, there is a demand for the provision of functions for the living space of users, and in particular, functions to improve air quality or reduce pollution in the space are required of home appliances.

[0004] This specification aims to solve the aforementioned problems and to implement a method and device capable of providing a sterilization function for a space in which the device is placed.

[0005] In addition, the present specification aims to implement a method and device that provide a sterilization function of a space according to the function of the device circulating air.

[0006] In addition, the present specification aims to implement a method and apparatus for controlling the on / off of a sterilization module to enhance the lifespan, safety, and sterilization effect of the sterilization module.

[0007] The objects of the present invention are not limited to those mentioned above, and other unmentioned objects and advantages of the present invention may be understood from the following description and will be more clearly understood by the embodiments of the present invention. Furthermore, it will be readily apparent that the objects and advantages of the present invention can be realized by the means and combinations thereof set forth in the claims.

[0008] A method for providing a space sterilization function based on user movement according to an embodiment of the present invention includes the steps of: a human body detection sensor of a device confirming the occurrence of a detection event and generating a detection event notification message and providing it to a control unit; the control unit of the device extracting distance information from the detection event notification message; and, if the distance information is greater than a reference distance, the control unit controlling the operation of a sterilization module of the device according to the function mode of the device.

[0009] A device providing a space sterilization function based on user movement according to one embodiment of the present invention includes a human body detection sensor that detects a human body, a sterilization module, and a control unit that, when the human body detection sensor confirms the occurrence of a detection event and provides a detection event notification message, extracts distance information from the detection event notification message and controls the operation of the sterilization module according to the distance information and the function mode.

[0010] When the present invention is applied, the device can provide a sterilization function for the space.

[0011] When the present invention is applied, a sterilization function of the space can be provided depending on the function of circulating air.

[0012] When the present invention is applied, the on / off of the sterilization module can be controlled to increase the lifespan, safety, and sterilization effect of the sterilization module.

[0013] The effects of the present invention are not limited to the effects described above, and various effects of the present invention can be easily derived from the composition of the present invention.

[0014] FIG. 1 is a drawing showing the configuration of a device equipped with a sterilization module according to one embodiment of the present invention.

[0015] FIG. 2 is a drawing showing the operation of a sterilization module when a ceiling-type air conditioner according to one embodiment of the present invention is used as an example of a device.

[0016] FIG. 3 is a drawing showing the operation of a sterilization module when a tower-type air conditioner according to one embodiment of the present invention is used as one embodiment of the device.

[0017] FIG. 4 is a diagram showing the operation of a sterilization module when an air purifier according to one embodiment of the present invention is used as one embodiment of the device.

[0018] FIG. 5 is a diagram showing the process of a device according to one embodiment of the present invention providing a space sterilization function based on the user's movement.

[0019] FIG. 6 is a diagram showing the process of a device according to an embodiment of the present invention controlling the operation time of a sterilization module.

[0020] FIG. 7 is a diagram showing the process of controlling the operating rate of a sterilization module according to the air volume or wind speed of an air conditioner or air purifier according to one embodiment of the present invention.

[0021] FIGS. 8 to 11 are drawings illustrating the operation of an air conditioner using a Far-UVC module as an embodiment of a sterilization module.

[0022] FIG. 12 is a drawing showing an example of setting the driving rate according to a period according to one embodiment of the present invention.

[0023] FIG. 13 is a drawing showing an example of setting the driving rate according to one embodiment of the present invention based on the turning on and off of a plurality of lamps.

[0024] FIG. 14 is a diagram showing the process of controlling the irradiation direction of a sterilization module according to the human body detection direction according to one embodiment of the present invention.

[0025] FIG. 15 is a diagram showing the process of controlling a sterilization module in conjunction with the air pollution level detected by an air quality sensor of a device according to one embodiment of the present invention.

[0026] FIG. 16 is a diagram showing the reduction rate of airborne viruses in a space in which a device according to one embodiment of the present invention is placed.

[0027] FIGS. 17 and 18 are graphs showing the results of increasing the sterilization effect by adjusting the on / off cycle of a sterilization module according to one embodiment of the present invention.

[0028] FIG. 19 is a diagram showing the process of determining the on / off time of a sterilization module (110) according to one embodiment of the present invention.

[0029] Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings so that those skilled in the art can easily implement the invention. The present invention may be embodied in various different forms and is not limited to the embodiments described herein.

[0030] To clearly explain the present invention, parts unrelated to the description have been omitted, and the same reference numerals are assigned to identical or similar components throughout the specification. Furthermore, some embodiments of the present invention are described in detail with reference to the exemplary drawings. In assigning reference numerals to the components of each drawing, identical components may have the same reference numeral whenever possible, even if they are shown in different drawings. Additionally, in describing the present invention, if it is determined that a detailed description of related known components or functions could obscure the essence of the present invention, such detailed description may be omitted.

[0031] In describing the components of the present invention, terms such as first, second, A, B, (a), (b), etc., may be used. These terms are intended only to distinguish the components from other components, and the nature, order, sequence, or number of the components are not limited by these terms. Where it is stated that a component is "connected," "combined," or "connected" to another component, it should be understood that the component may be directly connected or connected to the other component, but that other components may be "interposed" between each component, or that each component may be "connected," "combined," or "connected" through other components.

[0032] In addition, for convenience of explanation in implementing the present invention, the components may be described in detail; however, these components may be implemented within a single device or module, or a single component may be divided and implemented across multiple devices or modules.

[0033] The device described in this specification includes home appliances. This specification examines embodiments focusing on home appliances used for extended periods, such as tower-type air conditioners, ceiling-type air conditioners, and air purifiers. The device described in this specification provides a function suitable for removing pollutants from the air.

[0034] The sterilization module described in this specification is, as an embodiment, a module that provides a sterilization effect using Far-UVC or far ultraviolet rays. The sterilization module can perform a sterilization action in the air by turning on or off according to a predetermined cycle.

[0035]

[0036] FIG. 1 is a drawing showing the configuration of a device equipped with a sterilization module according to one embodiment of the present invention.

[0037] The device (100) is an example of a home appliance. The sterilization module (110) is an example of the aforementioned Far-UVC module. The control unit (150) controls the sterilization module (110) to provide a sterilization function according to the user's movement or presence. The control unit (150) can control the irradiation direction of the sterilization module (110).

[0038] The function unit (170) provides functions corresponding to the type of device. For example, if the device (100) is an air conditioner, the function unit (170) provides functions such as cold air, air blowing, and dehumidification. If the device (100) is an air purifier, the function unit (170) provides functions such as air purification and dehumidification. The human body detection sensor (180) checks whether a person is close to the device (100).

[0039] That is, the control unit (150) that controls the human body detection sensor (180) that detects the human body, the sterilization module (110), and other components extracts distance information from the detection event notification message when the human body detection sensor (180) confirms the occurrence of a detection event and provides a detection event notification message. The control unit (150) controls the operation of the sterilization module (110) according to the distance information and the function mode currently performed by the device (100) so that the device can provide a space sterilization function based on the user's movement.

[0040]

[0041] FIG. 2 is a drawing showing the operation of a sterilization module when a ceiling-type air conditioner according to one embodiment of the present invention is used as an example of a device. A sterilization module (110) is placed at the bottom of a ceiling-type air conditioner (100a), and the irradiation range (F) of the sterilization module is indicated by a dotted line.

[0042]

[0043] FIG. 3 is a drawing showing the operation of a sterilization module when a tower-type air conditioner according to one embodiment of the present invention is used as one embodiment of the device. A sterilization module (110) is placed at the top of a tower-type air conditioner (100b), and the irradiation range of the sterilization module is indicated by a dotted line.

[0044]

[0045] FIG. 4 is a diagram showing the operation of a sterilization module when an air purifier according to one embodiment of the present invention is used as one embodiment of the device. A sterilization module (110) is placed at the top of the air purifier (100c), and the irradiation range of the sterilization module is indicated by a dotted line.

[0046]

[0047] FIG. 5 is a diagram showing the process of a device according to one embodiment of the present invention providing a space sterilization function based on the user's movement.

[0048] The human body detection sensor (180) of the device (100) confirms the occurrence of a detection event (S1). For example, a detection event occurs when a person is near the device (100) or when a person enters the space where the device (100) is placed. Once a detection event occurs, the human body detection sensor (180) periodically confirms the occurrence of the detection event, except when the person subsequently leaves the space or is separated from the device (100) by a certain distance or more.

[0049] At this time, the detection event confirmed by the human body detection sensor (180) may include distance information between the detected human body and the device (100). Alternatively, the detection event may further include the number of detected people.

[0050] For example, the human body detection sensor (180) may include a first sensor that checks for the presence or absence of a person and a second sensor that measures the distance to the person. In this case, the human body detection sensor (180) may generate a detection event notification message using the value sensed by the first sensor and the value sensed by the second sensor. The human body detection sensor (180) then provides the detection event notification message to the control unit (150).

[0051] The human body detection sensor (180) and the control unit (150) can transmit and receive information through a predetermined wired or wireless communication. When the human body detection sensor (180) notifies the control unit (150) of the occurrence of a detection event, the control unit (150) of the device (100) extracts distance information from the detection event notification message (S2).

[0052] The control unit (150) controls the operation of the sterilization module (110) when there is a person in the space and the distance information is greater than the reference distance (S3). In particular, the control unit (150) can control the operation of the sterilization module (110) of the device according to the functional mode of the device. For example, depending on whether the device is a device that discharges air to generate air circulation within the space, such as an air conditioner or an air purifier, or not, the control unit (150) can control the sterilization operation rate of the sterilization module (110) differently.

[0053] Additionally, the control unit (150) turns off the sterilization module (110) when a person approaches the device (100) within a certain standard distance. If the sterilization module (110) includes a Far-UVC lamp, the control unit (150) can immediately stop the operation of the sterilization module (110) when an occupant is located within the standard distance to ensure safety from ultraviolet exposure.

[0054]

[0055] FIG. 6 is a diagram showing the process of a device according to an embodiment of the present invention controlling the operation time of a sterilization module.

[0056] If the sterilization module (110) includes a Far-UVC lamp, the operating time of the lamp can be adjusted to extend the lifespan of the lamp.

[0057] For example, the control unit (150) can store information regarding the operation time of the sterilization module (110). Then, in process S3 of FIG. 5, the control unit (150) checks whether the difference between the time information when the sterilization module (110) was previously operated and the current time is within a reference time (S6). If the result of the check is within the reference time, the control unit (150) can control the sterilization module (110) to keep the operation of the sterilization module (110) on standby (S7).

[0058] For example, if a person continues to move around the device, the distance at which the human body detection sensor (180) detects an occupant may increase and then decrease repeatedly.

[0059] The control unit (150) stores information about the time when the sterilization module (110) is turned on and performs sterilization action as the distance from the occupant increases, thereby preventing the problem of the sterilization module (110) repeatedly turning on and off due to the frequent movement of the occupant.

[0060] For example, if the operating time of the previous sterilization module (110) is compared with the current time and is within 10 seconds, a certain period (maximum 10 seconds) is waited. And if the operating conditions of the sterilization module (110) are met even after waiting (if there is an occupant and the distance from the occupant is greater than or equal to a reference distance), the control unit (150) operates the sterilization module (110).

[0061] In summary, when the sterilization module (110) is turned off and then turned on again, a certain time interval can be set to prevent the sterilization module (110) from repeatedly turning off and on.

[0062]

[0063] The device (100) of the present invention includes a sterilization module (110) to sterilize an occupied space. However, if the device (100) is a device that generates airflow within the space, such as an air conditioner or an air purifier, the sterilization effect may be enhanced due to the airflow. Accordingly, the control unit (150) can adjust the operating rate of the sterilization module (110) according to the volume or speed of air exposed by the device (100). Refer to FIG. 7.

[0064] FIG. 7 is a diagram showing the process of controlling the operating rate of a sterilization module according to the air volume or wind speed of an air conditioner or air purifier according to one embodiment of the present invention.

[0065] The control unit (150) checks the amount (airflow) or speed (wind speed) of the blower or cold air discharged by the device (100) (e.g., air conditioner or air purifier) ​​(S8). The control unit (150) sets the operating rate of the sterilization module (110) inversely proportional to the checked airflow or wind speed (S9). Then, the control unit (150) controls the sterilization module (110) according to the set operating rate (S9).

[0066] The operating rate includes the on / off cycle of the sterilization module (110), the amount of light output by the sterilization module (110), etc. That is, assuming that the maximum sterilization power that the sterilization module (110) can provide in terms of time or space is 100, the operating rate of the sterilization module (110) can correspond to any one of the sterilization powers between 0 and 100.

[0067] For example, if an air conditioner with a total of 4 function modes is used as an embodiment of the device (100), the operating rate of the sterilization module (110) including a Far-UVC lamp is as shown in Table 1 below.

[0068] Function Mode Mode 1 Mode 2 Mode 3 Mode 4 Far-UVC Light Intensity (Operating Rate) 1st Sterilization Mode (Level 4) (100%) 2nd Sterilization Mode (Level 3) (75%) 3rd Sterilization Mode (Level 2) (50%) 4th Sterilization Mode (Level 1) (25%) Airflow Windless Sleep Mode (Minimum Airflow) Cooling / Fan Cooling / Fan Air Purification OFF OFF OFF ON

[0069] For example, when the air conditioner is operating in mode 1, it is in a windless state where it does not emit any air and does not provide a separate air purification function. In this case, the operating rate of the sterilization module (110) can be set to 100% (level 4).

[0070] When the air conditioner operates in mode 2, it is in a sleep air conditioner that discharges air at a minimum airflow (sleep air) and does not provide a separate air purification function. In this case, the operating rate of the sterilization module (110) can be set to 75% (level 3).

[0071] When the air conditioner operates in mode 3, the air conditioner is in a cooling / blowing state that discharges air at a normal airflow (cooling / blowing) and does not provide a separate air purification function. In this case, the operating rate of the sterilization module (110) can be set to 50% (level 2).

[0072] When the air conditioner operates in mode 4, the air conditioner is in a cooling / blowing state that discharges air at a normal airflow (cooling / blowing) and provides a separate air purification function. In this case, the operating rate of the sterilization module (110) can be set to 25% (level 1).

[0073] In this way, when the amount or speed of the wind increases (increase in wind speed or air volume), the sterilization effect within the space increases, so the control unit (150) lowers the operating rate of the sterilization module (110). Conversely, when the amount or speed of the wind decreases (decrease in wind speed or air volume), the sterilization effect within the space decreases, so the control unit (150) increases the operating rate of the sterilization module (110).

[0074] The standards related to airflow or wind speed in Table 1 can also be applied to an air purifier. When the air purifier is basically in a state where the air purification function is turned on, the control unit (150) can increase or decrease the operating rate of the sterilization module (110) in inverse proportion to the amount or speed of the air discharged by the air purifier. Alternatively, the control unit (150) can increase or decrease the operating rate of the sterilization module (110) using the result of determining the indoor air pollution level (e.g., the pollution level in the air detected by the air quality sensor (160)).

[0075] When applying an embodiment of the present invention, a Far-UVC sterilization module installed in a ceiling-type air conditioner, tower-type air conditioner, air purifier, or other home appliance for space sterilization can be controlled according to the air circulation status or whether a user is present.

[0076] That is, the device (100) according to an embodiment of the present invention can operate the Far-UVC sterilization module by linking the Far-UVC sterilization module with the blower and air purification functions of an air conditioner / air purifier, etc., in order to increase air sterilization and disinfection efficiency. At this time, the operating rate can be set according to the air condition, taking into account the lifespan of the module. The operating rate includes a setting value for the on / off cycle or light intensity of the sterilization module. The Far-UVC lamp can be operated intermittently by controlling its On / Off according to the operating rate.

[0077] In addition, to maintain a low concentration of airborne bacteria and surface-attached bacteria in the space when an occupant is present, the occupant is detected by a human body detection sensor, and the sterilization module is operated by focusing on the time when an occupant is present in the space. Furthermore, if an occupant is located within a reference distance, the control unit (150) can immediately cut off the power to the sterilization module (110) or stop the operation of the sterilization module (110) to ensure safety regarding UV exposure.

[0078] In the case where the device is an air conditioner or an air purifier as an example, the sterilization module can be operated in conjunction with the blower and air purification functions of the air conditioner / air purifier to increase air sterilization efficiency.

[0079] For example, if the device is an air conditioner, airborne microorganisms can circulate when the blower fan is operated, and the airborne microorganisms can enter the sterilization range of the sterilization module (e.g., Far-UVC module (110)), thereby enabling air sterilization of the entire space.

[0080] Since the air purification function of the air conditioner is effective in removing not only airborne dust but also airborne microorganisms, the air sterilization effect can be maximized when the air purification function is operated together with a sterilization module (e.g., Far-UVC module (110)).

[0081] Referring to Table 1, a device (100) including a Far-UVC module, which is an embodiment of a sterilization module, can classify the space sterilization function operation mode into 1 to 4 depending on the amount of light, airflow, and whether or not the air purification function is used.

[0082] In addition, to prevent reliability concerns due to frequent ON / OFF of the Far-UVC module in all modes and user inconvenience caused by the flickering of the light source, a certain period of time (e.g., a waiting time of 10 seconds) may be provided when operating the Far-UVC module from the OFF state to the ON state.

[0083] FIGS. 8 to 11 are drawings illustrating the operation of an air conditioner using a Far-UVC module as an embodiment of a sterilization module. The description in FIGS. 8 to 11 can also be applied to devices having a blowing function, such as air purifiers, other than air conditioners.

[0084] FIG. 8 is a diagram showing the process of operation of the device in the case of Mode 1 of Table 1 according to an embodiment of the present invention. When the device is in a functional mode that does not discharge air or cold air, the control unit (150) operates only the sterilization module in the first sterilization mode (step 4) when a detection event occurs by a human body detection sensor in the space where the device (100) is placed.

[0085] In this process, the control unit (150) can operate the sterilization module by reflecting the distance from the human body. Additionally, the control unit (150) can control the operation of the sterilization module by reflecting the previous state where the sterilization module was on / off, or the time elapsed since the sterilization module was off.

[0086] Mode 1 operates the Far-UVC module independently and can be used to perform space sterilization even during seasons when air conditioning is not in use. To achieve a sterilization effect without ventilation or air purification, the Far-UVC light intensity can be set to the maximum (Level 4).

[0087] Mode 1 starts with the Far-UVC module turned OFF and the air conditioner fan function also turned OFF (S11). S11 includes a control process to turn off the Far-UVC module.

[0088] If the human body detection sensor (180) detects a human body within the space in S12 (S12-Yes), the control unit (150) checks whether a human body is detected within a reference distance (S13). Meanwhile, if the human body detection sensor (180) does not detect a human body within the space (S12-No), the process can proceed to step S11.

[0089] If a human body is detected outside the reference distance in S13 (S13-No), the Far-UVC module must be activated. The control unit (150) checks whether the Far-UVC module is in the ON state immediately before (S14). If the Far-UVC module is in the ON state (S14-Yes), the control unit (150) can keep the Far-UVC module in the ON state and set the light intensity to level 4 (maximum level) (S16).

[0090] If the Far-UVC module is OFF just before (S14-No), the control unit (150) waits for a certain amount of time (e.g., 10 seconds) (S15) and then proceeds to step S16.

[0091] Meanwhile, if a human body is detected within the reference distance in S13 (S13-Yes), the control unit (150) must stop the operation of the Far-UVC module. Therefore, proceed to step S11.

[0092] In S15, if the time when the Far-UVC module was previously turned OFF is longer than a certain period (e.g., 1 minute ago or 30 minutes ago), the waiting process of S15 can be omitted.

[0093]

[0094] FIG. 9 is a diagram showing the process of operation of the device in the case of Mode 2 of Table 1 according to an embodiment of the present invention. In the case of a function mode that discharges a minimum amount of air among the blowing or cooling air that the device can provide, when a detection event occurs by a human body detection sensor in the space where the device (100) is placed, the control unit (150) operates the sterilization module in a second sterilization mode (e.g., 3rd stage) with a lower operating rate than the first sterilization mode (e.g., 4th stage) of FIG. 8.

[0095] In this process, the control unit (150) can operate the sterilization module by reflecting the distance from the human body. Additionally, the control unit (150) can control the operation of the sterilization module by reflecting the previous state where the sterilization module was on / off, or the time elapsed since the sterilization module was off.

[0096] Mode 2 is a mode that can increase the air sterilization efficiency of the Far-UVC module through airflow while minimizing noise and wind effects. Therefore, the control unit (150) first operates the Far-UVC module and then operates the blower fan with the air conditioner sleep airflow (minimum airflow). Since Mode 2 has higher air sterilization performance at the same light intensity compared to Mode 1, which is a windless condition, the control unit (150) can set the module's operating rate to level 3, which is one level lower than Mode 1, in consideration of the lifespan of the Far-UVC module. This is the operation process of the device (100) when the user starts sleep airflow operation or enters sleep airflow operation by reservation.

[0097] If the human body detection sensor (180) detects a human body within the space in S22 (S22-Yes), the control unit (150) checks whether a human body is detected within a reference distance (S23). Meanwhile, if the human body detection sensor (180) does not detect a human body within the space (S22-No), the process can proceed to step S28.

[0098] If a human body is detected outside the reference distance in S23 (S23-No), the Far-UVC module must be activated. The control unit (150) checks whether the Far-UVC module is ON just before (S24). If the Far-UVC module is ON (S24-Yes), the control unit (150) maintains the Far-UVC module in the ON state and can set the light intensity to level 3 (S26). Then, the control unit (150) controls the air conditioner to operate at sleep airflow (minimum airflow) (S27).

[0099] If the Far-UVC module is OFF immediately before S24 (S24-No), the control unit (150) waits for a certain amount of time (e.g., 10 seconds) (S25) and then proceeds to step S26.

[0100] Meanwhile, if a human body is detected within the reference distance in S23 (S23-Yes), the control unit (150) must stop the operation of the Far-UVC module. Therefore, proceed to step S28.

[0101] In S25, if the time when the Far-UVC module was previously turned OFF is longer than a certain period (e.g., 1 minute ago or 30 minutes ago), the waiting process of S25 can be skipped.

[0102]

[0103] FIG. 10 is a diagram showing the process of operation of the device in the case of Mode 3 of Table 1 according to an embodiment of the present invention. In the case of a functional mode that discharges more wind than the minimum amount of blowing or cooling air that the device can provide, when a detection event occurs by a human body detection sensor in the space where the device (100) is placed, the control unit (150) operates the sterilization module in a third sterilization mode (e.g., 2nd stage) with a lower operating rate than the second sterilization mode (e.g., 3rd stage) of FIG. 9.

[0104] In this process, the control unit (150) can operate the sterilization module by reflecting the distance from the human body. Additionally, the control unit (150) can control the operation of the sterilization module by reflecting the previous state where the sterilization module was on / off, or the time elapsed since the sterilization module was off.

[0105] Mode 3 is a mode that allows the simultaneous use of general air conditioning functions and Far-UVC sterilization functions, and utilizes the airflow of cooling or ventilation to increase the air sterilization efficiency of the Far-UVC module. The control unit (150) operates the Far-UVC module when conditions are met while the air conditioner is operating its cooling or ventilation function. Since Mode 3 has higher air sterilization performance at the same light intensity compared to Mode 2, which has the minimum airflow, the operating rate of the module can be set to Level 2, which is one level lower than Mode 2, in consideration of the lifespan of the Far-UVC module.

[0106] When the air conditioner is operating in cooling / fan mode (cooling / fan ON) (S30), the Far-UVC module starts in the off state (S31). S31 includes a control process to turn off the Far-UVC module.

[0107] If the human body detection sensor (180) detects a human body within the space in S32 (S32-Yes), the control unit (150) checks whether a human body is detected within a reference distance (S33). Meanwhile, if the human body detection sensor (180) does not detect a human body within the space (S32-No), the process can proceed to step S31.

[0108] If a human body is detected outside the reference distance in S33 (S33-No), the Far-UVC module must be activated. The control unit (150) checks whether the Far-UVC module is in the ON state immediately before (S34). If the Far-UVC module is in the ON state (S34-Yes), the control unit (150) can keep the Far-UVC module in the ON state and set the light intensity to level 2 (S36).

[0109] If the Far-UVC module is OFF immediately before S34 (S34-No), the control unit (150) waits for a certain amount of time (e.g., 10 seconds) (S35) and then proceeds to step S36.

[0110] Meanwhile, if a human body is detected within the reference distance in S33 (S33-Yes), the control unit (150) must stop the operation of the Far-UVC module. Therefore, proceed to step S31.

[0111] In S35, if the time when the Far-UVC module was previously turned OFF is longer than a certain period (e.g., 1 minute ago or 30 minutes ago), the waiting process of S35 can be skipped.

[0112]

[0113] FIG. 11 is a diagram showing the process of operation of the device in the case of Mode 4 of Table 1 according to an embodiment of the present invention. When the air purification function mode of the device is started, the control unit (150) operates the sterilization module in a fourth sterilization mode (e.g., Stage 1), which has a lower operating rate than the third sterilization mode (e.g., Stage 2) of FIG. 10, when a detection event occurs by a human body detection sensor in the space where the device (100) is placed.

[0114] In this process, the control unit (150) can operate the sterilization module by reflecting the distance from the human body. Additionally, the control unit (150) can control the operation of the sterilization module by reflecting the previous state where the sterilization module was on / off, or the time elapsed since the sterilization module was off.

[0115] Mode 4 can be used to rapidly remove airborne microorganisms by maximizing air sterilization efficiency. The air conditioner's cooling or ventilation and air purification functions are activated first, and the Far-UVC module is activated when conditions are met. Since Mode 4 offers higher air sterilization performance compared to Mode 3 due to the addition of an air purification function, the module's operating rate can be set to Level 1, one level lower than Mode 3, to extend the lifespan of the Far-UVC module.

[0116] When the air conditioner is operating in cooling / fan mode (cooling / fan ON) (S39), the air purification function of the air conditioner is turned ON (S40). The Far-UVC module starts in the OFF state (S41). S41 includes a control process to turn off the Far-UVC module.

[0117] If, in S42, the human body detection sensor (180) detects a human body within the space (S42-Yes), the control unit (150) checks whether a human body is detected within a reference distance (S43). Meanwhile, if the human body detection sensor (180) does not detect a human body within the space (S42-No), the process can proceed to step S41.

[0118] If a human body is detected outside the reference distance in S43 (S43-No), the Far-UVC module must be activated. The control unit (150) checks whether the Far-UVC module is in the ON state immediately before (S44). If the Far-UVC module is in the ON state (S44-Yes), the control unit (150) can keep the Far-UVC module in the ON state and set the light intensity to level 1 (S46).

[0119] If the Far-UVC module is OFF immediately before S44 (S44-No), the control unit (150) waits for a certain amount of time (e.g., 10 seconds) (S35) and then proceeds to step S46.

[0120] Meanwhile, if a human body is detected within the reference distance in S43 (S43-Yes), the control unit (150) must stop the operation of the Far-UVC module. Therefore, proceed to step S41.

[0121] In S45, if the time when the Far-UVC module was previously turned OFF is longer than a certain period (e.g., 1 minute ago or 30 minutes ago), the waiting process of S45 can be skipped.

[0122] As seen in Table 1 and FIGS. 8 to 11, the operating rate according to one embodiment of the present invention can extend the lifespan of the module by controlling the on / off time cycle of the light amount of the Far-UVC module. In addition, the operating rate of the Far-UVC module according to another embodiment can be controlled by the light output. When the Far-UVC module includes two or more Far-UVC lamps, the operating rate of the Far-UVC module can determine the on and off states of each lamp.

[0123] Among the functional modes of the space sterilization function of the embodiments of FIGS. 8 to 11, Mode 1 is a mode in which space sterilization can be performed by the Far-UVC sterilization module (110) alone without the influence of wind and noise during the season when the air conditioner is not used.

[0124] Mode 2 is a mode that improves the air sterilization performance of the Far-UVC sterilization module (110) in the air conditioner's sleeping air while minimizing the effects of wind and noise.

[0125] Mode 3 is a mode that allows efficient use of the space sterilization function of the Far-UVC sterilization module (110) at the same time as the cooling / blowing function of the air conditioner.

[0126] Mode 4 is a mode that can maximize the air sterilization effect by simultaneously operating the Far-UVC sterilization module (110) and the air purification module of the air conditioner.

[0127] The usage period of the Far-UVC sterilization module (110) can be extended by setting the operation rate stage, such as the light intensity or on / off cycle of the Far-UVC sterilization module (110), according to the air sterilization performance of each driving mode.

[0128] In addition, when the Far-UVC sterilization module (110) is switched from OFF to ON in all four modes (S15, S25, S35, S45), a waiting time (e.g., 10 seconds) is provided, thereby reducing concerns about reliability due to frequent ON / OFF of the Far-UVC sterilization module (110) and user inconvenience due to the flickering of the light source.

[0129] The lifespan of the Far-UVC sterilization module (110) can be extended by performing intermittent irradiation at an operating rate with a specific ON / OFF cycle. For example, an operating rate of 50% can double the lifespan compared to an operating rate of 100%.

[0130]

[0131] FIG. 12 is a drawing showing an example of setting the driving rate according to a period according to one embodiment of the present invention.

[0132] When the operating rate of the Far-UVC module is set to the on / off cycle of the lamps constituting the Far-UVC module, the operating rate can be set as the ratio of the on (time the lamp is on) to the total on / off cycle. Looking at Figure 12 and Table 2, the time the lamp is on can be adjusted according to the operating rate.

[0133] Operating Rate 25% (Refer to 51) Operating Rate 50% (Refer to 52) Operating Rate 75% (Refer to 53) Operating Rate 100% (Refer to 54) 20-Minute Cycle 10-Minute Cycle 6.67-Minute Cycle Always On 5 min On / 15 min Off 5 min On / 5 min Off 5 min On / 1.67 min Off Always On

[0134] The cycles and on / off times in Table 2 are exemplary. For example, if there is a minimum time that must be turned on for each lamp, the operating rate may be set based on this. Table 2 takes as an example the case where the minimum time that must be turned on is 5 minutes.

[0135] Accordingly, the control unit (150) can set the operating rate of the sterilization module (110) suitable for the operating condition of the device (100) during the process of operating the device (100) under various conditions. The control unit (150) can adjust the On and Off cycles of the sterilization module (110) according to the operating rate.

[0136] FIG. 13 is a diagram showing an example in which the operating rate according to one embodiment of the present invention is set according to the turning on and off of a plurality of lamps. The sterilization module (110) may include two or more Far-UVC lamps.

[0137] Operation Rate 25% Operation Rate 50% Operation Rate 75% Operation Rate 100% Only one of Far-UVC Lamps 1~4 is on Two of Far-UVC Lamps 1~4 are on Three of Far-UVC Lamps 1~4 are on All of Far-UVC Lamps 1~4 are on

[0138] FIG. 13 is an embodiment in which four lamps (111, 112, 113, 114) constitute a Far-UVC module. The control unit (150) can selectively turn on / off 0 to 4 lamps among the four lamps (111, 112, 113, 114) according to the operating rate.

[0139] That is, the control unit (150) can determine the on / off of two or more Far-UVC lamps according to the operating rate. In this process, the control unit (150) can accumulate and store the time each lamp is turned on so that the accumulated operating time of multiple lamps becomes equal. For example, if the operating rate is 25%, the control unit (150) can control the four lamps by turning them on one by one alternately so that the lifespan of each lamp becomes equal.

[0140]

[0141] FIG. 14 is a diagram showing the process of controlling the irradiation direction of a sterilization module according to the human body detection direction according to one embodiment of the present invention.

[0142] The human body detection sensor (180) of the device (100) detects the movement of a person within the space. As a result, the human body detection sensor confirms the occurrence of a detection event (S61). The control unit (150) checks the distance information and direction from the detection event (S62). If a human body is detected at the 3 o'clock direction and the distance to the human body continues to decrease, stability can be ensured by directing the irradiation direction of the sterilization module (110) of the device (100) to the opposite direction of the human body (e.g., the 9 o'clock direction).

[0143] Accordingly, when the direction in which the distance information decreases is the first direction, the control unit (150) changes the irradiation direction of the sterilization module (110) to the opposite direction of the first direction (S63). After that, the control unit (150) can change the irradiation direction of the sterilization module (110) or stop the operation of the sterilization module (110) according to the detection event provided by the human body detection sensor.

[0144] When applying the embodiment of FIG. 14, the control unit (150) changes the irradiation direction of the sterilization module (110) in a direction opposite to the direction in which the human body detection sensor (180) detected the human body when the distance information between the human body and the device (100) decreases.

[0145] If sterilization modules (110) are placed in multiple areas of the device (100), the control unit (150) can turn off the sterilization module (110) in the direction where the human body detection sensor (180) detects the human body when the distance information between the human body and the device (100) decreases, and activate the sterilization module (110) in the opposite direction.

[0146]

[0147] FIG. 15 is a diagram showing the process of controlling a sterilization module in conjunction with the air pollution level detected by an air quality sensor of a device according to one embodiment of the present invention.

[0148] The air quality sensor (160) of the device (100) continuously calculates the air pollution level (S71). If the air pollution level increases, it is necessary to increase the operating rate of the sterilization module (110). Accordingly, the control unit (150) determines the operating rate of the sterilization module according to the air pollution level detected by the air quality sensor (160) (S72). Then, the control unit (150) controls the sterilization module according to the determined operating rate and monitors the air pollution level detected by the air quality sensor (160) (S73).

[0149] The control unit (150) can increase the sterilization effect by adjusting the operating rate of the sterilization module (110) according to the air pollution level detected by the air quality sensor (160).

[0150]

[0151] FIG. 16 is a diagram showing the reduction rate of airborne viruses in a space in which a device according to one embodiment of the present invention is placed.

[0152] Assuming that a 4-way cassette air conditioner with a sterilization module (e.g., Far-UVC module) installed on the ceiling of a chamber of a specific size (e.g., -52 m3 chamber) is one embodiment of the device of the present invention, the reduction rate of airborne viruses during the operation of the device (100) is as shown in FIG. 16.

[0153] 81 represents the reduction rate of airborne viruses compared to the initial level, and 82 represents the reduction rate of airborne viruses compared to natural reduction. No wind / Level 1 / Level 2 / Level 3 / Level 4 correspond to the airflow intensity, respectively. The reduction rate of airborne viruses increases when airflow is present. Additionally, the higher the airflow, the higher the reduction rate of airborne viruses. This is because circulating air prevents airborne viruses from becoming fixed in a specific space, thereby increasing the sterilization efficiency of the sterilization module.

[0154]

[0155] FIGS. 17 and 18 are graphs showing the results of increasing the sterilization effect by adjusting the on / off cycle of a sterilization module according to one embodiment of the present invention.

[0156] The sterilization module uses Far-UVC lamps, and the lamp's lifespan increases or decreases depending on the usage period or frequency. Therefore, the lifespan of the sterilization module can be extended by operating it at a specific rate, for example, through intermittent ON / OFF irradiation at a specific cycle.

[0157] The graph in Fig. 17 shows the change in illuminance over time after power is applied to the Far-UVC sterilization module. It reaches maximum illuminance at 15 minutes and 99% of the maximum illuminance at 5 minutes. When the ON time of the intermittent irradiation of the lamp is set to 5 minutes and 15 minutes and the irradiation cycle is varied, the sterilization efficiency is shown as in Fig. 18.

[0158]

[0159] Figure 18, number 84, is the case where the irradiation cycle is 6 hours and the on time is 15 minutes (i.e., turned on for 15 minutes for 6 hours), and Figure 18, number 85, is the case where the irradiation cycle is 2 hours and the on time is 5 minutes (i.e., turned on for 5 minutes for 2 hours).

[0160] Although the actual time the sterilization module is turned on is the same, there is a tendency for the number of bacteria to gradually decrease from 2 hours compared to a cycle of 6 hours. Therefore, the control unit (150) can set the on time to 5 minutes and the cycle to within 2 hours by reflecting the characteristics of the sterilization module (110). Since the optimal cycle and on time can be determined according to the configuration of the sterilization module (110), the control unit (150) can determine the on / off time of the sterilization module (110) by monitoring the state of the air quality detected by the air quality sensor (160) and the on / off time of the sterilization module (110).

[0161]

[0162] FIG. 19 is a diagram showing the process of determining the on / off time of a sterilization module (110) according to one embodiment of the present invention.

[0163] The control unit (150) calculates the air pollution level by controlling the air quality sensor (160) during the on / off period of the sterilization module (110) (S87). For example, the control unit (150) can calculate an inflection point where the air pollution level decreases rapidly while the sterilization module (110) is turned on. Alternatively, the control unit (150) can calculate an inflection point where the air pollution level increases rapidly after the sterilization module (110) is turned off and no human body is detected.

[0164] And the control unit (150) calculates the amount of change in the decrease and increase of air pollution per unit time and determines the basic on time and basic on / off cycle of the sterilization module (110) (S88).

[0165] In one embodiment, if the reduction in air pollution level was 10% for 1 minute / 3 minutes after the sterilization module (110) is turned on, and a reduction in air pollution level of 65% occurred at the 5-minute mark, the control unit (150) sets the basic on time of the sterilization module (110) to 5 minutes.

[0166] Additionally, if the increase in air pollution level was 15% during the 30 / 60 minutes after the sterilization module (110) was turned off, and a 50% increase in air pollution level occurred at the 120-minute mark, the control unit (150) sets the basic on-off period of the sterilization module (110) to 120 minutes.

[0167] And the control unit (150) determines the operating rate of the sterilization module (110) based on the determined basic on time and basic on / off cycle and controls the sterilization module (110).

[0168] For example, when the base on time and base on / off cycle are set for moderate pollution or airflow, the operation rate by mode in Table 1 can be set as shown in Table 4. Mode 3 is the case where the base on time and base on / off cycle are applied, and based on this, Modes 1 and 2 are embodiments that increase the base on time or decrease the base on / off cycle. Mode 4 is an embodiment that decreases the base on time and increases the base on / off cycle.

[0169] Function Mode Mode 1 Mode 2 Mode 3 Mode 4 Far-UVC Light Intensity (Operating Rate) 1st Sterilization Mode (Level 4) (100%) 2nd Sterilization Mode (Level 3) (75%) 3rd Sterilization Mode (Level 2) (50%) 4th Sterilization Mode (Level 1) (25%) Airflow Windless Sleep Mode (Minimum Airflow) Cooling / Fan Cooling / Fan Air Purification OFF OFF OFF ON On Time and On / Off Cycle 10 min On 1 hour cycle 5 min On 1 hour cycle 5 min On 2 hour cycle 3 min On 3 hour cycle

[0170] When applying one embodiment of the present invention, the sterilization module can be operated only when there is an occupant in the space. That is, the airborne / surface bacteria reduction effect is achieved only when Far-UVC irradiation is ON, and when OFF, the saturation concentration can be restored through internal generation and external influx. Therefore, although continuous operation for 24 hours is advantageous, the device (100) can perform sterilization concentrated during the time when an occupant is present, taking into account the lifespan of the module. In addition, since the occupant is measured by a human body detection sensor (180), the device (100) can determine whether an occupant is present.

[0171] In addition, when applying another embodiment of the present invention, the sterilization module can be operated even when there are no occupants in the space. For example, the sterilization module can operate according to changes in the contamination level of the air quality in the space to remove viruses in the space.

[0172] Meanwhile, the human body detection sensor (160) measures the distance to the occupant and provides the measured value to the control unit (150). The control unit (150) can turn off the irradiation of the sterilization lamp (110) if the distance between the occupant and the lamp is within a reference value (e.g., risk exemption illuminance). The reference distance can be set according to the illuminance from the ground based on the installation height of the device and the Far-UVC driving mode. For example, in mode 1, if the occupant is located within a horizontal distance of 80 cm from the light source, the control unit (150) cuts off the power to the sterilization lamp (110).

[0173] In addition, the control unit (150) can cut off the power to the sterilization lamp (110) even if there is an occupant outside the reference distance, depending on the movement speed of the human body detected by the human body detection sensor (160).

[0174] For example, when the sterilization module (110) is set to turn off when an occupant is located within a horizontal distance of 80 cm, if the occupant moves at a fast speed, the control unit (150) can cut off the power to the sterilization lamp (110) even if an occupant approaches within a horizontal distance of 1 meter.

[0175] The device including the sterilization module of the present invention may include the following embodiments. It includes a Far-UVC sterilization module (110) for space sterilization, a control unit (150) for driving the module at a specific operating rate, e.g., light intensity or on / off cycle, and a human body detection sensor (160) for detecting occupants to drive the Far-UVC sterilization module (110) and turning off the sterilization module (110) when occupants are within a reference distance.

[0176] Additionally, depending on whether the device (100) is an air purifier, an air conditioner, or a hot air blower, the device (100) may include an air purification module, a blower fan, a heat exchanger, etc., and a ceiling-mounted air conditioner, an air purifier, a tower-mounted air conditioner, a wall-mounted air conditioner, etc. are used as examples.

[0177] In the case of a ceiling-mounted air conditioner, a Far-UVC sterilization module (110) may be placed on the panel, and the Far-UVC sterilization module (110) irradiates ultraviolet rays (Far-UVC) in the direction of the ground.

[0178] The control unit (150) can drive the sterilization module (110) in conjunction with the air purification or blowing function of the air conditioner to increase air sterilization efficiency.

[0179] The control unit (150) can operate the device by dividing the driving mode into multiple stages (e.g., 1 to 4) depending on the light intensity or operating cycle of the Far-UVC sterilization module (110), the airflow discharged by the device (100), and whether the air purification function of the device (100) is used. Depending on the driving mode, as the air sterilization performance increases, the control unit (150) can set the light intensity stage of the Far-UVC sterilization module (110) to a lower level.

[0180] In addition, to prevent reliability concerns due to frequent ON / OFF of the Far-UVC sterilization module (110) and user inconvenience due to the flickering of the light source, the control unit (150) can set a certain waiting time (e.g., 5 seconds, 10 seconds, 30 seconds, etc.) when the Far-UVC sterilization module (110) is operated from the off state to the on state.

[0181] Additionally, the control unit (150) can control the ON / OFF intermittent irradiation of the lamp of the sterilization module (110) at a specific operating rate and period to increase the lifespan of the Far-UVC sterilization module (110).

[0182] To increase the lifespan of the Far-UVC sterilization module (110), the control unit (150) may operate the sterilization function only when there are occupants in the space, or when the level of contamination in the space increases.

[0183] Since the human body detection sensor (160) measures the distance to the occupant, when a person approaches within a reference distance (risk-exempt illuminance), the control unit (150) stops the irradiation of the Far-UVC sterilization module (110). The reference distance may vary depending on the operating mode of the Far-UVC sterilization module (110) and the illuminance according to the installation height of the air conditioner.

[0184] When the embodiments of the present invention are applied, devices such as air purifiers or air conditioners can provide an indoor space sterilization function. In the case of a ceiling-mounted air conditioner, sterilization effects can be achieved over a wide area by irradiating ultraviolet rays from the ceiling height toward the floor surface.

[0185] The air sterilization efficiency can be increased by circulating air during the process in which the air conditioner's fan blows air simultaneously with ultraviolet irradiation. In this process, airborne microorganisms circulate and are exposed to ultraviolet light of high intensity as they get closer to the Far-UVC sterilization module (110), thereby sterilizing the airborne microorganisms.

[0186] In addition, the air sterilization effect can be maximized by simultaneously operating the device's air purification function (air purification module) and the Far-UVC sterilization module (110).

[0187] Additionally, the device (100) can reduce the exposure and infection rate of harmful microorganisms and extend the usage period of the module by operating the sterilization module (110) intensively when there is an occupant in the space. For example, if the occupant's indoor residence time is 8 hours, the usage period can be increased threefold compared to continuous operation for 24 hours.

[0188] By measuring the horizontal distance to the occupant with a human body detection sensor (160), ultraviolet irradiation can be turned OFF when the occupant is within the reference distance, thereby maintaining an illumination level that is exempt from photobiological safety risks to the human body according to international standards (e.g., IEC 62471).

[0189] Although it has been described that all components constituting an embodiment of the present invention are combined or operate as a single unit, the present invention is not necessarily limited to such an embodiment, and within the scope of the purpose of the present invention, all components may be selectively combined in one or more ways to operate. Furthermore, while all components may each be implemented as a single independent piece of hardware, some or all of the components may be selectively combined to be implemented as a computer program having a program module that performs some or all of the combined functions on one or more pieces of hardware. The codes and code segments constituting the computer program can be easily inferred by those skilled in the art of the present invention. An embodiment of the present invention may be implemented by storing such a computer-readable storage medium and reading and executing it by a computer. The storage medium for the computer program includes a magnetic recording medium, an optical recording medium, and a storage medium including a semiconductor recording element. Additionally, a computer program implementing an embodiment of the present invention includes a program module that is transmitted in real time through an external device.

[0190] Although the present invention has been described above with reference to embodiments, various changes and modifications can be made by those skilled in the art. Therefore, it should be understood that such changes and modifications are included within the scope of the present invention as long as they do not depart from the scope of the invention.

[0191]

Claims

1. A step in which the human body detection sensor of the device confirms the occurrence of a detection event, generates a detection event notification message, and provides it to the control unit; A step in which a control unit of the above device extracts distance information from the detection event notification message; and A method for providing a space sterilization function based on user movement, comprising the step of the control unit controlling the operation of the sterilization module of the device according to the function mode of the device when the distance information is greater than the reference distance.

2. In Paragraph 1, The above control unit includes the step of storing information regarding the operation time of the sterilization module, and The above-mentioned controlling step A method for providing a space sterilization function based on user movement, comprising the step of controlling the sterilization module to put the operation of the sterilization module on standby when the difference between the time information at which the sterilization module was previously operated and the current time is within a reference time.

3. In Paragraph 1, If the above device is an air conditioner or an air purifier, The above-mentioned controlling step A method for providing a space sterilization function based on user movement, wherein the above-described control unit further includes the step of controlling the sterilization module by setting an operating rate inversely proportional to the amount or speed at which the device discharges blowing air or cold air.

4. In Paragraph 3, When the above device is in a function mode that does not discharge blower or cold air, The above-mentioned controlling step A method for providing a space sterilization function based on user movement, comprising the step of the control unit operating only the sterilization module in a first sterilization mode when the detection event occurs within the space where the device is placed.

5. In Paragraph 4, In the case of a function mode that discharges the minimum amount of air among the blowing or cooling air that the above device can provide, The above-mentioned controlling step A method for providing a space sterilization function based on user movement, comprising the step of the control unit operating the sterilization module in a second sterilization mode with a lower operating rate than the first sterilization mode when the detection event occurs within the space where the device is placed.

6. In Paragraph 5, In the case of a function mode in which more wind than the minimum amount is discharged among the blowing or cooling air that the above device can provide, The above-mentioned controlling step A method for providing a space sterilization function based on user movement, comprising the step of the control unit operating the sterilization module in a third sterilization mode with a lower operating rate than the second sterilization mode when the detection event occurs within the space where the device is placed.

7. In Paragraph 6, When the air purification function mode of the above device is started, The above-mentioned controlling step A method for providing a space sterilization function based on user movement, comprising the step of the control unit operating the sterilization module in a fourth sterilization mode with a lower operating rate than the third sterilization mode when the detection event occurs within the space where the device is placed.

8. In Paragraph 3, A method for providing a space sterilization function based on user movement, wherein the control unit further includes the step of adjusting the on and off cycles of the sterilization module according to the operating rate.

9. In Paragraph 3, If the above sterilization module includes two or more Far-UVC lamps, A method for providing a space sterilization function based on user movement, wherein the control unit further includes the step of determining the on / off of the two or more Far-UVC lamps according to the driving rate.

10. In Paragraph 1, A method for providing a space sterilization function based on user movement, wherein the control unit further includes the step of changing the irradiation direction of the sterilization module in a direction opposite to the direction in which the human body detection sensor detected the human body when the distance information decreases.

11. In Paragraph 1, A method for providing a space sterilization function based on user movement, wherein the control unit further includes the step of adjusting the operating rate according to the air pollution level detected by the air quality sensor of the device.

12. In Paragraph 1, The control unit calculates the air pollution level by controlling the air quality sensor of the device during the on / off interval of the sterilization module; The control unit calculates the amount of change in the decrease and increase of air pollution per unit time to determine the basic on time and basic on / off cycle of the sterilization module; and A method for providing a space sterilization function based on user movement, comprising the step of the control unit determining the operating rate of the sterilization module and controlling the sterilization module based on the above-determined basic on time and basic on / off cycle.

13. Human body detection sensor that detects the human body; Sterilization module; and A device providing a space sterilization function based on user movement, comprising a control unit that controls the operation of the sterilization module according to the distance information and function mode when the human body detection sensor confirms the occurrence of a detection event and provides a detection event notification message.

14. In Paragraph 13, The above control unit stores information regarding the operation time of the sterilization module, and A device providing a space sterilization function based on user movement, wherein the control unit controls the sterilization module to put the operation of the sterilization module on standby when the difference between the time information at which the sterilization module was previously operated and the current time is within a reference time.

15. In Paragraph 13, If the above device is an air conditioner or an air purifier, The above control unit is a device that provides a space sterilization function based on user movement, which controls the sterilization module by setting the operating rate inversely proportional to the amount or speed at which the device discharges blowing air or cold air.

16. In Paragraph 15, When the above device is in a function mode that does not discharge blower or cold air, The above control unit is a device that provides a space sterilization function based on user movement, wherein when the detection event occurs within the space where the device is placed, only the sterilization module is operated in a first sterilization mode.

17. In Paragraph 16, In the case of a function mode that discharges the minimum amount of air among the blowing or cooling air that the above device can provide, The above control unit is a device that provides a space sterilization function based on user movement, wherein when the above detection event occurs within the space in which the device is placed, the sterilization module is operated in a second sterilization mode with a lower operating rate than the first sterilization mode.

18. In Paragraph 17, In the case of a function mode in which more wind than the minimum amount is discharged among the blowing or cooling air that the above device can provide, The above control unit is a device that provides a space sterilization function based on user movement, wherein when the above detection event occurs within the space in which the device is placed, the sterilization module is operated in a third sterilization mode with a lower operating rate than the second sterilization mode.

19. In Paragraph 18, When the air purification function mode of the above device is started, The above control unit is a device that provides a space sterilization function based on user movement, wherein when the above detection event occurs within the space in which the device is placed, the sterilization module is operated in a fourth sterilization mode with a lower operating rate than the third sterilization mode.

20. In Paragraph 15, The above control unit is a device that provides a space sterilization function based on user movement, which controls the on and off cycles of the sterilization module according to the above operating rate.

21. In Paragraph 15, If the above sterilization module includes two or more Far-UVC lamps, The above control unit is a device that provides a space sterilization function based on user movement, which determines the on / off of two or more Far-UVC lamps according to the above driving rate.

22. In Paragraph 13, A device providing a spatial sterilization function based on user movement, wherein the control unit further includes the step of changing the irradiation direction of the sterilization module in a direction opposite to the direction in which the human body detection sensor detected the human body when the distance information decreases.

23. In Paragraph 13, The above control unit is a device that provides a space sterilization function based on user movement, which adjusts the operating rate according to the air pollution level detected by the air quality sensor of the device.

24. In Paragraph 13, The control unit above controls the air quality sensor of the device during the on / off period of the sterilization module to calculate the air pollution level, and A device providing a space sterilization function based on user movement, wherein the above-described control unit calculates the amount of change in the decrease and increase of air pollution per unit time to determine the basic on time and basic on / off cycle of the sterilization module, and controls the sterilization module by determining the operating rate of the sterilization module based on the determined basic on time and basic on / off cycle.

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