KR20220115298A - Sterilizing device for elevator handrail and sterilizing system for the same - Google Patents

Abstract

The present invention relates to a sterilizer which comprises: a housing movably coupled to a handle inside an elevator; a driving roller installed inside the housing to contact a surface of the handle; a drive motor rotating the driving roller; an LED module installed inside the housing to emit ultraviolet rays to the surface of the handle; a communication unit wirelessly communicating with an external device; and a control unit controlling the operation of the LED module and the driving motor. According to the present invention, the handle provided inside an elevator can be effectively sterilized and disinfected using ultraviolet rays, and accordingly, the elevator can prevent the spread of bacteria or viruses.

Description

Mobile sterilizing device for elevator handrail and sterilizing system for the same

The present invention relates to a sterilizing device, and more particularly, to a sterilizing device capable of automatically sterilizing a passenger handle installed inside an elevator using ultraviolet rays.

With the recent rapid spread of highly contagious diseases such as COVID-19, in order to prevent the spread of the virus from person to person, in addition to observing personal quarantine rules such as wearing a mask, washing hands, and refraining from going out, it is also necessary to use public facilities or places used by a large number of people. Thorough disinfection is required.

Therefore, the manager of a facility or building used by an unspecified number of people must periodically disinfect handles, tables, chairs, etc. that people cannot but touch or come into contact with.

In particular, elevators in high-rise buildings are essential facilities used by an unspecified number of people, and since there are many cases where passengers hold or put objects on the handle after pressing the floor number button, the button or handle is a virus or bacterial infection route. can be Therefore, the buttons and knobs inside the elevator must also be thoroughly disinfected on a regular basis.

However, although it is possible to disinfect the inside of the elevator regularly in large buildings with dedicated personnel, it is very rare in most small and medium buildings to regularly disinfect the inside of the elevator due to the limitations of manpower and cost.

Therefore, elevator users have no choice but to use the elevator while paying personal attention not to touch the internal structure with their hands, such as pressing the floor number button with a water bottle or toothpick and not going near the handle.

According to this trend, various research and development has been made on a device for automatically disinfecting the inside of an elevator in recent years.

For example, Patent Document 1 introduces a detachable sterilizer capable of sterilizing the operation buttons inside the elevator, and Patent Document 2 introduces an elevator capable of sterilizing by spraying a sterilizing agent into the interior space while the elevator is stopped. .

However, since the sterilization device of Patent Document 1 is used to sterilize operation buttons, there is a limit in that it is not possible to sterilize a handle that people frequently touch.

In addition, although the method of Patent Document 2 has an effect of sterilizing the entire interior of the elevator, when a passenger boards in a state in which the disinfectant is not completely discharged, it can cause discomfort due to smell and adversely affect health. There is a disadvantage that it is difficult to use it during times of high risk of infection because it is frequently used by people. In addition, since the disinfectant must be sprayed regularly, there is a disadvantage in that too much cost is consumed to procure the disinfectant.

Registered Patent No. 10-1618251 (2016.05.09 Announcement) Registered Patent No. 10-2211281 (published on 2/02/02)

An object of the present invention is to provide a sterilization device capable of effectively sterilizing a handle provided inside an elevator as devised in this background.

In order to achieve this object, an aspect of the present invention, the housing movably coupled to the handle inside the elevator; a driving roller installed inside the housing and contacting the surface of the handle; a driving motor for rotating the driving roller; an LED module installed inside the housing to emit ultraviolet light to the surface of the handle; a communication unit for wirelessly communicating with an external device; It provides a sterilization device including a control unit for controlling the operation of the LED module and the driving motor.

In the sterilization apparatus according to an aspect of the present invention, the control unit may operate the driving motor and the LED module only when it is determined that there is no passenger from the detection result of the occupancy sensor installed in the elevator.

In addition, in the sterilization apparatus according to an aspect of the present invention, the control unit, when the expected movement time (ET) calculated when the elevator moves is within the first set range, the rotational speed of the drive motor to the first speed control, and when the expected movement time ET falls within a second set range greater than the first set range, the rotation speed of the driving motor may be controlled to a second speed smaller than the first speed.

In addition, in the sterilization apparatus according to an aspect of the present invention, the LED module includes a first LED module having a first UV intensity and a second LED module having a second UV intensity greater than the first UV intensity, and the control unit may turn on the second LED module when rotating the driving motor at the first speed, and turn on the first LED module when rotating the driving motor at the second speed.

In addition, the sterilizer according to an aspect of the present invention, the opening and closing door installed in the housing; As for sterilizing the button inside the elevator, it may include a UV LED module for the button installed inside the opening and closing door.

In addition, the sterilizer according to an aspect of the present invention may include a distance sensor for detecting the distance between the housing and the elevator wall.

Another aspect of the present invention includes a housing movably coupled to a handle inside an elevator, a driving roller installed inside the housing and contacting the surface of the handle, a driving motor rotating the driving roller, and the housing. a sterilization device having an LED module installed inside and emitting ultraviolet rays to the surface of the handle, a first communication unit for wireless communication, and a first control unit for controlling the operation of the LED module and the driving motor; an occupancy sensor installed in the elevator to determine whether or not a passenger has boarded; As a control of the overall operation of the elevator, a boarding determination unit that determines whether or not a passenger is boarded using the detection result of the boarding detection sensor, and calculating an expected travel time when the elevator moves, and calculating the estimated travel time Accordingly, a moving speed determining unit for determining the moving speed of the sterilization device, and a first LED module having a first UV intensity and a second LED module having a second UV intensity greater than the first UV intensity are determined among the LED modules to be lit. It provides an elevator sterilization system comprising an elevator control unit comprising at least one of the UV LED selection unit.

According to the present invention, the handle provided inside the elevator can be effectively sterilized and sterilized using ultraviolet rays, thereby preventing the spread of bacteria or viruses through the elevator.

1 is a view showing an elevator equipped with a handle sterilizer according to an embodiment of the present invention;
2 and 3 are views illustrating various installation types of a handle sterilizer according to an embodiment of the present invention;
4 and 5 are views showing a cross section and a longitudinal section of a handle sterilizer according to an embodiment of the present invention, respectively;
6 is a block diagram illustrating a control system of a handle sterilizer according to an embodiment of the present invention;
7 is a diagram illustrating a functional configuration of a sterilizer control program;
8 and 9 are views illustrating several implementation methods of an elevator sterilization system including a handle sterilizer according to an embodiment of the present invention;
10 is a block diagram illustrating a control system of an elevator equipped with a handle sterilizer according to an embodiment of the present invention;
11 is a view illustrating a functional configuration of a sterilizer control program installed in the elevator control unit
12 to 14 are views illustrating various sterilization methods using a handle sterilizer according to an embodiment of the present invention.
15 is a view showing an elevator equipped with a handle sterilizer according to another embodiment of the present invention;
16 is a view showing the appearance of a handle sterilizer according to another embodiment of the present invention;

Hereinafter, a preferred embodiment of the present invention will be described with reference to the drawings.

For reference, in the drawings attached to the present specification, there are parts indicated with dimensions or ratios different from those of actuality, but this is for convenience of explanation and understanding, so it should be noted in advance that the scope of the present invention should not be construed as being limited thereto. In addition, in the present specification, when one element is connected, coupled, or electrically connected to another element, it is not only directly connected, combined, or electrically connected to another element, but also between other elements in the middle. and indirectly connected, coupled, or electrically connected to each other. Also, when one element is directly connected or combined with another element, it means that it is connected or combined without another element in the middle. In addition, the inclusion of a certain component in a certain part means that other components may be further included, rather than excluding other components, unless otherwise specifically stated. Also, in the present specification, expressions such as before, after, left, right, up, and below are relative concepts that may vary depending on the viewing position, so the scope of the present invention is not necessarily limited to the corresponding expression.

1 shows an elevator 200 in which a handle sterilizer (hereinafter, referred to as 'sterilizer' for convenience) 100 according to an embodiment of the present invention is installed, and the sterilizer 100 is installed on a wall in a horizontal direction. It is movably installed on the handle 20 .

In addition, the sterilizer 100 interlocks with the elevator control unit 210 for controlling the operation of the elevator and the occupancy sensor 290 installed to monitor whether a passenger is on board, depending on the operating state of the elevator and/or whether or not a passenger is boarded. You can control the action.

As shown in FIG. 2 , when the handles 20 installed on every three wall surfaces 10 inside the elevator 200 are separated from each other, the sterilizer 100 according to the embodiment of the present invention for each handle 20 . ) can be installed to be movable.

On the other hand, as shown in FIG. 3 , when one handle 20 is continuously installed along three wall surfaces 10 in the interior of the elevator 200 , the sterilizer 100 according to the embodiment of the present invention ) can be installed one or two units.

4, 5, and 6 are a cross-sectional view and a longitudinal cross-sectional view of the sterilization apparatus 100 according to an embodiment of the present invention, respectively. and a block diagram showing the control system.

As shown in the drawing, the sterilizer 100 according to an embodiment of the present invention includes a housing 102 having a pair of rails 104 coupled to the upper end and lower end of the elevator handle 20, respectively; As installed inside the housing 110 to move the microcontroller unit (MCU) 110 installed in the housing 110 to control the overall operation of the sterilizer 100, and the sterilizer 100, The driving roller 120 and the driven roller 122 installed to contact the surface of the handle 20, respectively, the motor 130 for rotating the driving roller 120 in the forward or reverse direction, and the indoor surface of the handle 20 and a sterilization LED module 140 installed to face.

In addition, the sterilizer 100 according to an embodiment of the present invention includes a communication unit 150 communicating with the elevator control unit 210, a power supply unit 160 for supplying power, a sterilizer 100 and an elevator wall surface ( 10) It may include a distance sensor 170 that detects a distance between the two, and an input unit 180 through which an administrator can input operation parameters and the like.

Since the rail 104 provided in the housing 102 is installed to allow the sterilizer 100 to move stably along the handle 20, if it can play this role, it will be replaced with another guide means or other guide means will be added. may be For example, the movement of the sterilizer 100 may be guided by installing a roller in contact with at least one of the indoor surface, the wall surface, the upper surface, and the lower surface of the handle 20 . In addition, a bearing or roller may be additionally installed on the contact surface of the handle 20 and the rail 104 .

The MCU 110 uses information or commands received from the elevator control unit 210, information or commands input through the input unit 180, measured values of the boarding sensor 290 and/or the distance sensor 170, etc. Thus, the operation of the sterilizer 100 can be controlled.

As illustrated in the block diagram of FIG. 6 , the MCU 110 may include a processor 112 and a memory 114 .

The processor 112 executes a computer program stored in the memory 114 to perform a predetermined operation. The processor 112 and the memory 114 may be packaged as a single chip.

The memory 114 may store a control program for controlling the operation of the sterilizer 100 , various parameters, data, and the like. The memory 114 may include a non-volatile memory such as a flash memory and a volatile memory such as a RAM.

The sterilization device control program stored in the memory 114 is functionally divided, as shown in the block diagram of FIG. 7 , a boarding or not determining unit 310 , a moving speed determining unit 320 , and a UV LED selection unit 330 . , an operation command generation unit 340 and the like.

The boarding determination unit 310 serves to determine whether a passenger exists in the elevator by using the detection result of the boarding detection sensor 290 . Since the sterilization device 100 according to the embodiment of the present invention sterilizes the handle 20 using the UV LED module 140 harmful to the human body, even if the LED module 140 is sealed inside the housing 102, passengers When there is no sterilization, it is desirable to perform sterilization.

The type of the boarding sensor 290 is not particularly limited, and can be used without limitation as long as it can detect whether or not there are passengers in the elevator.

As an example, a PIR (Passive Infrared or Pyroelectric Infrared) sensor capable of detecting human movement may be used as the occupancy detection sensor 290 .

As another example, a camera for photographing an elevator interior may be used as the occupancy detection sensor 290 .

As another example, a load sensing mat (not shown in the drawing) that is installed on the floor of the elevator and senses the load of the passenger may be used as the occupancy detection sensor 290 . The load sensing mat may include a plurality of load sensing elements (eg, load cells) arranged in a matrix and a signal processing unit for amplifying and/or filtering signals generated from the load sensing elements.

As another example, for more accurate determination, two or more of a PIR sensor, a camera, and a load detection mat may be combined and used as the boarding detection sensor 290 .

The boarding determination unit 310 may determine whether a passenger is present in various ways by using the detection result of the boarding detection sensor 290 . For example, if a signal above the threshold is detected by the PIR sensor, it is determined that a passenger is present, or an image analysis algorithm such as OpenCV is applied to the camera image in the elevator room, or a machine learning algorithm such as deep learning is applied. It can be determined whether or not a passenger exists, or when a load greater than a threshold is detected from the load sensing mat.

However, since the PIR sensor also responds to the movement of objects, even when only cargo is loaded, it can be mistaken for an occupant, and the camera can mistakenly believe that there is no occupant when a person is covered by the cargo. There is a limitation in not being able to distinguish between Therefore, in order to more accurately determine whether or not a passenger is boarding, it is more preferable to install two or more types of boarding detection sensors 290 and combine respective detection results to determine whether or not a passenger is boarded.

In addition, if it is ambiguous or difficult to determine whether to board, it would be preferable to consider that there is a passenger and to stop the operation of the sterilizer 100 for the safety of the passenger.

On the other hand, the detection result of the boarding detection sensor 290 may be directly transmitted to the sterilization device 100, or may be transmitted indirectly through the elevator control unit 210.

As an example, as illustrated in FIG. 8 , the boarding detection sensor 290 is connected to the elevator control unit 210 by wire or wirelessly, and the elevator control unit 210 wirelessly transmits the detection result of the boarding detection sensor 290 . It can be transmitted to the sterilizer 100 .

As another example, as illustrated in FIG. 9 , the boarding detection sensor 290 may wirelessly transmit the detection result directly to the sterilization device 100 .

The moving speed determining unit 320 determines the speed at which the sterilizer 100 moves along the handle 20 . For example, if the elevator 10 is in a stationary state in the middle of the night, the sterilizer 100 may move slowly to sterilize the handle 20 . However, in order to effectively prevent the spread of bacteria or viruses, it is preferable to frequently sterilize the handle 20 during the daytime when people come in and come into contact with it frequently. That is, it is preferable to sterilize the handle 20 by operating the sterilization device 100 from time to time even during the daytime.

To this end, basically, the elevator 200 operates the sterilizer 100 in a stopped state, but if there are no passengers, the elevator 200 moves to the waiting floor (the floor that moves when there is no call for a certain time, for example, the first floor) ) or the call floor (the floor where the outside person who wants to board presses the button), it is preferable to operate the sterilizer 100 while moving.

However, when the elevator 200 operates the sterilizer 100 while moving, if the sterilizer 100 moves too slowly, it may not be possible to sterilize the entire handle 20 before arriving at the calling floor. Estimated Time (ET) may be calculated in advance, and the moving speed V of the sterilizer 100 may be adjusted according to the calculated estimated moving time ET.

As an example, if the expected movement time ET is 15 seconds, the sterilizer 100 is moved at a speed V1 capable of sterilizing all the handles 20 within 15 seconds, and the expected movement time ET is 10 In seconds, it is possible to move the handle 20 at a speed (V2>V1) capable of sterilizing all the handles within 10 seconds.

As another example, if the expected movement time ET falls within the first range (To < ET < T1), the vehicle moves at a relatively high speed V3, and if it falls within the second range (T1 < ET < T2), it is faster than V3. The moving speed may be divided into sections of several steps, such as moving at a slow speed V2, and moving at a slower speed V1 than V2 if it is in the third range (T2 < ET < T3).

The UV LED selector 330 is to prevent the sterilization effect from being lowered when the moving speed V is faster than the reference speed by varying the moving speed of the sterilizing device 100 as described above.

In general, a certain amount of ultraviolet (UV) irradiation is required for eradication of bacteria or viruses, and the ultraviolet irradiation amount (mJ/cm ² ) is defined as the product of the ultraviolet intensity (mW/cm ² ) and the exposure time (sec).

Therefore, when the moving speed V of the sterilization device 100 is increased, the time during which the handle 20 is exposed to UV is shortened.

In order to prevent this phenomenon, UV LEDs having various ultraviolet intensities (mW/cm ² ) are installed inside the sterilizer 100 , and the moving speed of the sterilizing device 100 determined by the moving speed determining unit 320 is relative. If it is slow V1, select and light a relatively low intensity UV LED, and if the moving speed is V2 (>V1), select and light a medium intensity UV LED with higher intensity, and if the moving speed is V3 (>V2) On the other hand, it is possible to select and light a high-intensity UV LED with a higher intensity.

The operation command generation unit 340 generates a speed command to be output to the motor 130 according to the determination and determination result of the boarding decision unit 310 , the movement speed determination unit 320 , and the UV LED selection unit 330 , or , an on/off command for a switching means (not shown in the drawing) connecting the power supply unit 160 and the LED module 140 is generated, or an LED module selection command is generated and output according to the required UV intensity.

On the other hand, although it is shown in FIG. 5 that one driving roller 120 and three driven rollers 122 are installed inside the housing 102, the number of rollers is not limited thereto, and the sterilizer 100 is a handle. A larger number of rollers may be installed or a smaller number of rollers may be installed within the range that can be stably operated along (20).

In addition, although it is shown that one driving roller 120 is connected to one motor 130 in the drawings, the present invention is not limited thereto. Accordingly, two or more driving rollers 120 may be connected to one motor 130 , and two or more motors 130 and two or more driving rollers 120 may be installed, respectively.

In addition, although the drawing shows that the driving roller 120 is directly connected to the motor 130, it is not limited thereto, so it is also possible to connect indirectly by selectively combining power transmission mechanisms such as a reducer, a gear, a pulley, a wire, a chain, and a sprocket. have.

As the LED module 140, it is preferable to use a module equipped with a UV-C LED in a wavelength band of 180 to 280 nm, which is known to have excellent sterilization power. In addition, the LED module 140 obtains a sufficient sterilization effect when the low-intensity UV LED module 140 and the sterilizer 100 to be used when the elevator is stopped or the expected movement time (ET) is very long, and the sterilizer 100 moves at a high speed. It may include a medium-intensity or high-intensity UV LED module 140 for.

The communication unit 150 supports wireless communication between the sterilizer 100 and the communication unit 250 of the elevator control device. The wireless communication method is not particularly limited, and can be selected from known communication methods such as Bluetooth, Zigbee, Wi-Fi, infrared data communication (IrDA), and UWB (Ultra-Wide Band). have.

The power supply unit 160 may include a switching circuit and a battery for controlling power supply to the motor 130 and the LED module 140 according to the control of the MCU 110 . The power supply unit 160 may include an AC-DC conversion circuit and a rechargeable battery.

The distance sensor 170 is for preventing the collision with the elevator wall 10 when the sterilizer 100 reaches the end of the handle 20 during movement. That is, when the distance sensor 170 detects that the distance from the wall surface 10 is less than the reference value, the MCU 110 stops the motor 130 to prevent the collision between the sterilizer 100 and the wall surface 10 . can

The type of the distance sensor 170 is not particularly limited, and a laser sensor, an infrared sensor, an ultrasonic sensor, etc. may be used without limitation.

The input unit 180 is a device for an administrator to input operation parameters to the MCU 110 of the sterilization apparatus 100 , and input means such as a button, a keyboard, a touch panel, and a touch screen may be used without limitation. However, the operation parameters of the sterilizer 100 may be set by wirelessly connecting through the communication unit 150, and in this case, the input unit 180 may be omitted.

Meanwhile, in the above description, the MCU 110 of the sterilizer 100 determines whether a passenger is on board, determines the moving speed of the sterilizer 100 , and determines the LED module 140 to be turned on.

However, since it is not limited thereto, the elevator control unit 210 determines whether or not the passenger is on board, determines the moving speed of the sterilizer 100 , determines the LED module 140 to be lit, and the sterilizer 100 . After receiving the operation command generated by the elevator control unit 210, the MCU 110 may control the motor 130 and the LED module 140 accordingly.

In this case, the elevator 200 according to an embodiment of the present invention, as illustrated in the block diagram of FIG. 10 , includes a control unit (MCU) 210 for controlling the overall operation of the elevator 200, and the elevator as an elevator passageway. An elevating motor 220 for lifting and lowering from the inside, a door motor 230 for opening and closing the door 50, an input unit 240 including a floor number button and an opening/closing button, a communication unit 250, and a power supply unit ( 260 , and a boarding detection sensor 290 .

In particular, the MCU 210 of the elevator 200 may control the operation of the sterilizer 100 by using information or commands input through the input unit 240 , the measured value of the occupancy sensor 290 , and the like.

The MCU 210 of the elevator may include a processor 212 and a memory 114 . In addition, the processor 212 executes a computer program stored in the memory 214 to perform a predetermined operation. The processor 212 and the memory 214 may be packaged as a single chip.

The memory 214 may store a control program for controlling the operation of the elevator 200, various parameters, data, and the like. The memory 214 may include a non-volatile memory such as a flash memory and a volatile memory such as a RAM.

The sterilization device control program stored in the memory 214 is functionally divided, as shown in the block diagram of FIG. 11 , a boarding decision unit 410 , a movement speed determination unit 420 , and a UV LED selection unit 430 . , an operation command generation unit 440 , and the like.

The functions of the boarding or not determining unit 410 , the moving speed determining unit 420 , the UV LED selecting unit 430 , and the operation command generating unit 440 provided in the elevator MCU 210 are the sterilization device 100 . Since they are the same as the boarding or not determining unit 310, the moving speed determining unit 320, the UV LED selecting unit 330, and the operation command generating unit 340 of FIG. 7 provided in the MCU 110, the description is omitted. do.

The communication unit 250 wirelessly communicates with the sterilization device 100 , and transmits a predetermined operation command to the sterilization device 100 or transmits a detection result of the occupancy detection sensor 290 .

Also, when a failure occurs in the sterilizer 100 , the communication unit 250 may be set to transmit a failure notice to a preset manager terminal under the control of the MCU 210 .

Hereinafter, an elevator handle sterilization method using the sterilizer 100 according to an embodiment of the present invention will be described with reference to FIG. 12 . For convenience of description, it is assumed that the MCU 110 of the sterilizer 100 controls the overall sterilization operation.

When power is supplied to the sterilizer 100 , the MCU 110 of the sterilizer 100 starts monitoring to determine whether the sterilization condition is satisfied. (ST11)

First, it is first determined whether the elevator door 50 is closed through communication with the elevator control unit 210 , and only when the door 50 is closed, it is determined whether there are passengers inside. (ST12)

At this time, whether or not the passenger is present is determined by the boarding determination unit 310 of the sterilization device 100 using the detection result of the boarding detection sensor 290 or determined by the boarding determination unit 410 of the elevator 200. can

Also, as described above, the boarding detection sensor 290 includes at least one of a PIR sensor, a camera, and a load detection mat, and at least one of the output signal of the PIP sensor, camera image analysis, and measurement value of the load detection mat. It is possible to determine whether a passenger is on board. (ST13)

In the above step, if it is determined that there is no passenger, the MCU 110 of the sterilizer 100 supplies power to the motor 130 and the LED module 140 to move the sterilizer 100 along the handle 10 . . Accordingly, the surface of the handle 10 is disinfected and sterilized by the ultraviolet rays emitted from the UV-C LED.

On the other hand, in the embodiment of the present invention, the sterilization device 100 is operated only when it is determined that there are no passengers, and as described above, the elevator 200 is operated in a different way when it is in a stationary state and when it is moving. can

That is, when it is determined that there is no passenger, it is checked whether the elevator 200 is currently in a stopped state through communication with the elevator control unit 210, and if the elevator 200 is in a stopped state, the LED module 140 is turned on in a state The sterilizer 100 is moved at a preset speed Vo, and if the elevator 200 is moving, the expected movement time ET can be calculated. The expected movement time ET of the elevator 200 may be calculated by the elevator control unit 210 and transmitted to the sterilizer 100 . (ST14, ST15, ST19)

Meanwhile, the MCU 110 of the sterilizer 100 may periodically check whether the elevator 200 is currently in a stopped state through communication with the elevator control unit 210 even after starting the sterilization operation. Even in this case, when the elevator 200 is in a stopped state, the sterilizer 100 is continuously moved at a set speed Vo, and when the elevator 200 is moving, the expected movement time ET can be calculated. (ST16, ST19)

In addition, the MCU 110 of the sterilizer 100 periodically checks whether the door 50 is opened through the elevator control unit 210 after starting the sterilization operation, and when the door 50 is opened, the safety of the passenger is ensured. To this, the motor 130 of the sterilizer 100 is stopped and the LED module 140 is turned off.

In addition, the MCU 110 of the sterilizer 100 periodically checks the detection value of the distance sensor 170 or checks the rotation speed of the driving roller 120 so that the sterilizer 100 reaches the end of the handle 20 . Continue to monitor whether

And when it is determined that the end of the handle 20 is reached, the motor 130 is stopped and the LED module 140 is turned off, or the motor 130 is rotated in the reverse direction to move the sterilizer 100 to the opposite side. UV disinfection can be continued. (ST17, ST18)

On the other hand, after calculating the expected movement time ET in step ST19 as the elevator 200 moves, as shown in FIG. 13 , first, the expected movement time ET is within the first range (To < ET < T1). It is sequentially determined whether or not it belongs to the second range (T1 ≤ ET < T2). (ST20, ST21)

As a result of the determination, if it is determined that the calculated expected movement time ET is equal to or greater than the second range, the MCU 110 of the sterilizer 100 determines the movement speed as the relatively slow first speed V1, and the estimated movement time ( When it is determined that ET) belongs to the second range, the MCU 110 of the sterilizer 100 determines the moving speed as a second speed V2 that is faster than the first speed V1, and the expected moving time ET is When it is determined that it belongs to the first range, the MCU 110 of the sterilizer 100 may determine the moving speed as a third speed V3 faster than the second speed V2.

Meanwhile, the moving speed of the sterilizer 100 may be determined by the elevator control unit 210 and transmitted to the sterilizer 100 . (ST22, ST23, ST24)

In this way, when the moving speed of the sterilization apparatus 100 is determined, the MCU 110 of the sterilizing apparatus 100 turns on the LED module 140 and controls the motor 130 according to the determined moving speed to control the handle 20 ) to move the sterilizer 100 along. (ST25)

In addition, even after the sterilizer 100 starts to operate, the MCU 110 periodically checks whether the door 50 is opened through the elevator control unit 210, and when the door 50 is opened, the safety of the passenger is ensured. To this, the motor 130 of the sterilizer 100 is stopped and the LED module 140 is turned off. (ST26, ST27)

On the other hand, when the moving speed (V) of the sterilizer 100 is differentiated according to the expected moving time (ET) of the elevator 200, the amount of ultraviolet irradiation according to the moving speed (V) of the sterilizer 100 as described above. can also be differentiated.

That is, as shown in ST22a, ST22b, ST22c of FIG. 14, when the moving speed of the sterilizer 100 is determined to be a relatively slow first speed V1, the UV intensity among the LED modules 140 having various output intensities. Selects and lights a UV LED of a relatively small first intensity, and when the moving speed is determined as a second speed (V2>V1), selects and lights a UV LED of a second intensity with a UV intensity higher than the first intensity, When the moving speed is determined to be the third speed (V3>V2), the UV LED having a third intensity greater than the second intensity may be selected and turned on.

Although preferred embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments and may be implemented with various modifications or modifications in a specific application process.

As an example, in the above embodiment, it has been described that the LED module 140 installed inside the sterilizer 100 is completely surrounded by the housing 102 in order to prevent ultraviolet rays from being emitted to the outside, but it is not necessarily limited thereto. not.

That is, as shown in FIGS. 15 and 16, a UV LED module 140a for a button is installed in the sterilizer 100a reciprocating in front of the input unit 240 such as a button of an elevator, and a UV LED module for a button ( 140a) may be installed in front of the retractable door 190.

In this way, it becomes possible to sterilize not only the handle 20 but also the buttons of the elevator with UV using the sterilizer 200a under strict conditions.

For example, the MCU 110 of the sterilizer 100a detects the distance from the wall 10 on which the elevator input unit 240 is installed using the detection result of the distance detection sensor 170, and the detected distance is set If it falls within the range, the button can be sterilized by opening the retractable door 190 and lighting the UV LED module 140a for the button.

At this time, in order to more effectively sterilize the button, a plurality of UV-C LEDs are installed in the UV LED module 140a for the button, and the irradiation direction of each LED chip is appropriately adjusted so that UV is irradiated to all buttons of the elevator input unit 240 . It is desirable to control In addition, since the distance between the UV LED module 140a for the button and the button is relatively long, the UV intensity of the UV LED module 140a for the button is higher than the UV intensity of the LED module 140 for sterilizing the handle installed inside the housing 102. A larger one is preferred.

On the other hand, when sterilizing the button using the UV LED module 140a for the button, UV is inevitably emitted into the inside of the elevator 200, so before operating the UV LED module 140a for the button, the presence of a passenger is completely checked. You just have to be able to judge.

Therefore, only when the detection results of at least two of the PIR sensor, the camera, and the load detection mat match, the UV LED module 140a for the button is turned on, or the button is used only when the stop time of the elevator has passed the set time. It is preferable to apply the lighting conditions very strictly, such as turning on the UV LED module 140a.

In addition, when the elevator door 50 is opened, as well as when the call button is pressed from the outside of the elevator 200, it is preferable to immediately turn off the UV LED module 140a for the button and close the retractable door 190.

As another example, although it has been shown that the occupancy sensor 290 is installed independently of the sterilizer 100 in the above-described embodiment, the present invention is not limited thereto. Therefore, the PIR sensor and/or the camera may be directly installed in the sterilization apparatus 100 and it may be determined whether there are occupants in the elevator using the same.

As such, the present invention can be implemented with various modifications or variations, and if the modified or modified embodiment includes the technical idea of the present invention disclosed in the claims to be described later, it is of course within the scope of the present invention. will be.

10: wall 20: handle 50: door
100: handle sterilizer 102: housing 104: rail
110: control unit (MCU) 112: processor 114: memory
120: driving roller 122: driven roller 130: motor
140: LED module 140a: LED module for button 150: communication unit
160: power supply unit 170: distance sensor 180: input unit
190: retractable door 200: elevator 210: control unit (MCU)
212: processor 214: memory 220: elevating motor
230: motor for door 240: input unit 250: communication unit
260: power supply 290: boarding detection sensor
310, 410: boarding or not determining unit 320, 420: moving speed determining unit
330, 430: UV LED selection unit 340, 440: operation command generation unit

Claims (7)

a housing movably coupled to a handle inside the elevator;
a driving roller installed inside the housing and contacting the surface of the handle;
a driving motor for rotating the driving roller;
an LED module installed inside the housing to emit ultraviolet light to the surface of the handle;
a communication unit for wirelessly communicating with an external device;
A control unit for controlling the operation of the LED module and the driving motor
Sterilization device comprising According to claim 1,
The control unit is a sterilization device, characterized in that only when it is determined that there is no passenger from the detection result of the boarding sensor installed in the elevator to operate the driving motor and the LED module 3. The method of claim 2,
The control unit controls the rotation speed of the driving motor to a first speed when the estimated movement time ET calculated when the elevator moves is within a first set range, and the estimated movement time ET is the first Sterilization apparatus, characterized in that when it falls within a second set range larger than the set range, controlling the rotation speed of the driving motor to a second speed smaller than the first speed 4. The method of claim 3,
The LED module includes a first LED module having a first UV intensity and a second LED module having a second UV intensity greater than the first UV intensity,
The control unit, when rotating the driving motor at the first speed, turns on the second LED module, when rotating the driving motor at the second speed, sterilization, characterized in that for lighting the first LED module Device According to claim 1,
a retractable door installed in the housing;
UV LED module for buttons installed inside the retractable door as for sterilizing the buttons inside the elevator
Sterilization device comprising a According to claim 1,
Sterilization device comprising a distance sensor for detecting the distance between the housing and the elevator wall A housing movably coupled to a handle inside the elevator, a driving roller installed inside the housing and in contact with the surface of the handle, a driving motor rotating the driving roller, and a housing installed inside the handle A sterilization device having an LED module emitting ultraviolet rays to the surface, a first communication unit for wireless communication, and a first control unit for controlling the operation of the LED module and the driving motor;
an occupancy sensor installed in the elevator to determine whether or not a passenger has boarded;
As a control of the overall operation of the elevator, a boarding determination unit that determines whether or not a passenger is boarded using the detection result of the boarding detection sensor, and calculating an expected travel time when the elevator moves, and calculating the estimated travel time Accordingly, a moving speed determining unit for determining the moving speed of the sterilization device, and a first LED module having a first UV intensity and a second LED module having a second UV intensity greater than the first UV intensity are determined among the LED modules to be lit. Elevator control unit comprising at least one of the UV LED selection unit to
Elevator sterilization system comprising

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