JP6375509B2 - Notification device, air purifier, and notification method - Google Patents

Description

  The present invention relates to a notification device, a notification method, and an air cleaner using the notification device that notify a user of the risk of infection by a pathogen such as a virus contained in the air.

  A pathogen such as a virus contained in the air is collected, and the concentration of the pathogen contained in the air is measured by, for example, fluorescence spectroscopy, surface-enhanced Raman scattering spectroscopy, or the like.

  Conventionally, optical measurement techniques such as fluorescence spectroscopy and surface-enhanced Raman scattering have been used for various applications, for example, techniques for measuring the concentration of pathogens such as bacteria and mold in the air using fluorescence spectroscopy. Is disclosed (for example, see Patent Document 1). By using fluorescence spectroscopy, the concentration of pathogens in the air eliminates the need for consumables such as reagents, test strips, and enzymes, and the problem of storage safety and disposal after use of these consumables Quantitative measurement can be achieved without problems such as complicated operations that cause errors and interference with other components.

  Surface-enhanced Raman spectroscopy includes surface-enhanced Raman scattering consisting of a nanometer-sized structure made of a noble metal, such as an antibody that specifically captures a stoichiometrically related virus, etc. Has been disclosed that measures surface-enhanced Raman scattering generated by an enhanced electric field caused by localized surface plasmons generated on the nanostructure (see, for example, Non-Patent Document 1). . According to this technology, surface-enhanced Raman scattering can be excited with high efficiency using the wavelength of light in the near-infrared region, and analyzed by Raman spectroscopy in the near-infrared region by exciting with light in the near-infrared region. Thus, it is possible to eliminate the influence of light absorption and fluorescence of impurities in the matrix containing the analysis object, and to improve the specificity and selectivity in the detection of the analysis object.

Special table 2013-52039 gazette

Ralph A.I. Trip, Richard A. et al. Dluhy, Yiping Zhao, “Novel nanostructures for SERS biosensing”, Nano today, Vol. 3, Number 3-4, 31-37 (2008)

  In the conventional method, the risk of being infected with a virus cannot be reduced for a user staying in a predetermined area.

  The present invention includes a virus concentration calculating means for calculating a virus concentration in a predetermined area, a time calculating means for calculating a user's presence time in the predetermined area, an output of the virus concentration calculating means, and an output of the time calculating means. A virus exposure amount calculating means for calculating the virus exposure amount of the user; a storage means for storing a threshold value of the virus exposure amount; a control unit for determining that an output of the virus exposure amount calculating means is equal to or greater than the threshold value; A notification device is provided that includes notification means for notifying the user according to the output of the control unit.

  Further, the notification method of the present invention is a notification method in the notification device, the virus concentration calculation step of calculating the virus concentration of the predetermined region, the time calculation step of calculating the time that the user exists in the predetermined region, From the calculation result in the virus concentration calculation step and the calculation result in the time calculation step, the virus exposure amount calculation step for calculating the virus exposure amount of the user and the calculation result in the virus exposure amount calculation step are preset. A determination step of determining that the threshold value is exceeded, and a notification step of notifying the user according to the determination result in the determination step.

  ADVANTAGE OF THE INVENTION According to this invention, the infection risk with respect to a virus can be reduced with respect to the user who stays in a predetermined area | region.

The block diagram which shows schematic structure of the alerting | reporting apparatus 100 which concerns on Embodiment 1 of this invention. The flowchart which shows the alerting | reporting method which concerns on Embodiment 1 of this invention. The perspective view which shows schematic structure of the air cleaner 200 using the alerting | reporting apparatus which concerns on Embodiment 1 of this invention which concerns on Embodiment 2 of this invention.

  Hereinafter, embodiments of the present invention will be described in detail.

(Embodiment 1)
FIG. 1 is a block diagram showing a schematic configuration of a notification device 100 according to Embodiment 1 of the present invention.

  The notification device 100 includes a virus concentration calculation unit 101 that calculates a virus concentration in a predetermined area, a time calculation unit 102 that calculates a time (for example, a user's stay time) in the predetermined area, and the virus concentration. From the output of the calculation means 101 and the output of the time calculation means, a virus exposure amount calculation means 103 for calculating the virus exposure amount of the user, a storage means 104 for storing a threshold value of the virus exposure amount, and the virus exposure amount calculation The control unit 105 that determines that the output of the means 103 is equal to or greater than the threshold value stored in the storage means (for example, indicates whether the value is equal to or greater than the threshold value), and the user according to the output of the control unit And informing means 106 for informing the user.

  For example, the notification unit 106 may notify the user when the output of the virus exposure amount calculation unit 103 is equal to or greater than a threshold as a result of the determination by the control unit.

  Alternatively, for example, the notification unit 106 may notify the user that the output of the virus exposure amount calculation unit 103 is smaller than a threshold value as a result of the determination by the control unit.

  The virus concentration calculation means 101 includes a virus detection means 107 that detects a virus in a predetermined area and an input means 108 that inputs the size of the predetermined area. The size of the predetermined area may be input by the user before use by the input unit 108 or may be set in advance.

  The virus detection means 107 detects a virus and measures the amount of virus in a predetermined area.

  The virus concentration calculation means 101 can calculate the virus concentration in the predetermined area from the output of the virus detection means 107 and the output of the input means 108 (for example, the size of the predetermined area input by the input means 108).

  Here, in the present embodiment, as long as the virus detection means 107 is a technique that can specifically detect a virus, a known technique can be used without any particular limitation. For example, a technique for detecting viruses in the air using the surface-enhanced Raman scattering method and a technique for measuring the concentration of pathogens such as bacteria and mold in the air using fluorescence spectroscopy can be used.

  Here, the predetermined area is preferably indoors or indoors. The predetermined region may be a predetermined outdoor location.

  When a virus is present in the air in the predetermined area, the amount of virus taken in by the user varies depending on the length of stay time of the user in the predetermined area.

  The time calculation unit 102 includes a user detection unit 109 that detects a user in a predetermined area (for example, detects that the user exists in the predetermined area).

  When the user detection means 109 detects that the user is staying in the predetermined area, the time calculation means 102 is based on the output of the user detection means 109 and the user's existing time (for example, stay time). ).

  Here, in the present embodiment, the time calculation means 102 uses, for example, a clock function that outputs time information and a timer that measures the time that the user stayed in a predetermined area in conjunction with the detection of the user detection means 109. ing. The user detection unit 109 uses, for example, an infrared sensor that detects infrared rays emitted by the user.

  Thus, based on the output from the first infrared sensor from the initial state of the notification device 100, the timer starts measuring the time during which the user stays in the predetermined area, and the user does not exist in the predetermined area by the infrared sensor. When this is output, the measurement of the time during which the user stays in the predetermined area by the timer is terminated.

  By doing in this way, a user's stay time can be measured.

  Further, when the time calculation means 102 finishes measuring the time during which the user stays in the predetermined area, the notification device 100 can be prepared for the next measurement by returning to the initial state.

  Here, the user detection means 109 can be used as long as it can detect the presence of the user. For example, various sensors such as an ultrasonic sensor, a laser light reflection type sensor, a photoelectric tube, and a capacitance type sensor can be used.

  The user detected by the user detection means is preferably a person. The user may be an animal other than a person.

  The notification device 100 according to Embodiment 1 includes a virus exposure amount calculation unit 103, a storage unit 104, a control unit 105, and a notification unit 106.

  In the virus exposure amount calculation means 103, the virus exposure amount of the user is calculated by multiplying the output of the virus concentration calculation means 101 and the output of the time calculation means 102 by the known amount of air sucked per unit time by the user. At this time, the control unit 105 determines whether or not the calculated virus exposure amount is greater than or equal to the threshold value stored in the storage unit 104 based on the threshold value of the user's virus exposure amount stored in advance in the storage unit 104. to decide. At this time, if the calculated amount of virus exposure is equal to or greater than the threshold, the control unit 105 transmits a signal to the notification means 106 as a signal, and the notification means 106 notifies the user.

  Thereby, it can be notified that there is a high risk of being infected with a virus.

  Here, the amount of air sucked per unit time by the user, which is a value necessary for calculation in the virus exposure amount calculation means, is 6 L on average per minute at rest, and the virus of the user stored in advance in the storage means The threshold value of the exposure amount may be set based on the infectious value of a virus that has a risk of being infected by about 50% of people.

  Here, in this Embodiment, the alerting | reporting means 106 is comprised with the LED indicator, and alert | reports the danger of infection to a user by blinking of an LED indicator. Here, the notification means 106 can be used as long as it can notify the user of the danger. For example, an alarm generator that notifies the danger by the sound of blinking a fluorescent lamp, a buzzer, or the like can be used.

  FIG. 2 is a flowchart of the notification method according to Embodiment 1 of the present invention.

  That is, the notification method according to the first embodiment includes a virus concentration calculation step for calculating a virus concentration in a predetermined region, a time calculation step for calculating a time during which a user in the predetermined region exists, and the virus concentration calculation step. The virus exposure amount calculation step for calculating the virus exposure amount of the user and the calculation result in the virus exposure amount calculation step are equal to or greater than a preset threshold value from the calculation result of the above and the calculation result of the time calculation step. And a notification step of notifying the user according to a determination result in the determination step.

  This can inform the user that there is a high risk of being infected with a virus.

  In the determination step, the user may be notified in the notification step when the calculation result in the virus exposure amount calculation step is equal to or greater than a preset threshold value.

  Alternatively, in the determination step, when it is determined that the calculation result in the virus exposure amount calculation step is smaller than a preset threshold value, the notification step that the calculation result in the virus exposure amount calculation step is smaller than the threshold value In this case, the user may be notified.

  As shown in FIG. 2, the notification method may further include a virus detection process for detecting a virus in a predetermined area and an input process in which the size of the predetermined area is input.

  At this time, the virus concentration calculation step may calculate the virus concentration in a predetermined region from the detection result of the virus detection step and the input result of the input step.

  As shown in FIG. 2, the notification method may further include a user detection step of detecting a user in a predetermined area.

  At this time, the time calculation step may calculate the user existing time in the predetermined area based on the detection result of the user detection step.

  As shown in FIG. 2, the notification method may further include a storage step of storing a threshold value of the amount of virus exposure in a storage unit of the notification device.

  In a more specific example, the virus detection means 107 detects the amount of virus in a predetermined area, and the virus concentration is calculated from the result and the size of the predetermined area input in advance. The user in the predetermined area is detected by the user detection means, and the staying time of the user is calculated by the time measurement means in conjunction with the user detection. The virus exposure amount is calculated from the calculated virus concentration and the stay time, and it is determined whether or not the calculated value is equal to or greater than a threshold value of the virus exposure amount for the user stored in advance. If it is equal to or greater than the threshold, the notification means 106 notifies the user (for example, the LED blinks to notify).

  In addition, if the calculation of the amount of virus exposure is performed every certain time and it is determined whether or not it is equal to or greater than the threshold each time, it is possible to continuously monitor the risk of virus infection.

  Alternatively, in the determination step, when it is determined that the calculation result in the virus exposure amount calculation step is smaller than a preset threshold value, the procedure may return to the virus exposure amount calculation step and be repeated again.

(Embodiment 2)
An air cleaner 200 using the notification device 100 of the present invention will be described below with reference to FIG. In FIG. 3, the same reference numerals are used for the notification device 100, and the description thereof is omitted.

  FIG. 3 is a perspective view showing a schematic configuration of the air purifier 200 provided with the notification device 100. As shown in FIG. 3, the notification device 100 is incorporated in the air purifier 200.

  That is, the air cleaner 200 according to the second embodiment includes the notification device 100 according to the first embodiment and an air purifier that cleans air in a predetermined area.

  By doing in this way, when the danger of the infection to the virus is notified to the user who stays in the predetermined area by the notification device 100, the air purifier operates and purifies the air in the predetermined area. , Can improve the environment at high risk to viruses.

  Furthermore, for example, by operating the air cleaner only when there is a high risk that a user in a predetermined area is infected with a virus, it is possible to reduce energy consumption in the operation of the air cleaner.

  The present invention can be used, for example, to measure an invisible virus concentration in the air and notify a user in a predetermined area when there is a high risk of infection.

DESCRIPTION OF SYMBOLS 100 Notification apparatus 101 Virus concentration calculation means 102 Time calculation means 103 Virus exposure amount calculation means 104 Storage means 105 Control part 106 Notification means 107 Virus detection means 108 Input means 109 User detection means 200 Air cleaner

Claims (5)

A virus concentration calculating means for calculating a virus concentration in a predetermined region;
Time calculating means for calculating the time during which the user in the predetermined area exists;
From the output of the virus concentration calculation means and the output of the time calculation means, a virus exposure amount calculation means for calculating the virus exposure amount of the user,
Storage means for storing a threshold of virus exposure;
A control unit that determines that the output of the virus exposure amount calculation means is equal to or greater than the threshold;
In accordance with the output of the control unit, Bei example and informing means for informing the user,
The time calculation means includes
Comprising user detection means for detecting the user in the predetermined area;
The time calculation means calculates the user's presence time in the predetermined area based on the output of the user detection means.
Notification device. The virus concentration calculation means includes:
Virus detection means for detecting the virus in the predetermined area;
Input means for inputting the size of the predetermined area,
From the output of the virus detection means and the output of the input means, the virus concentration in the predetermined area is calculated.
The notification device according to claim 1. The notification device according to claim 1 or 2 ,
An air cleaning means for cleaning the air in the predetermined area;
Air cleaner. A notification method in a notification device,
A virus concentration calculation step for calculating a virus concentration in a predetermined region;
A time calculation step of calculating a time during which the user in the predetermined area exists;
From the calculation result in the virus concentration calculation step and the calculation result in the time calculation step, a virus exposure amount calculation step for calculating the virus exposure amount of the user,
A determination step of determining that the calculation result in the virus exposure amount calculation step is equal to or greater than a preset threshold;
Depending on the determination result in the determining step, it includes a notification step of notifying the user,
In the time calculation step, the user is detected in the predetermined area, and the presence time of the detected user is calculated.
Notification method.   A virus concentration calculating means for calculating a virus concentration in a predetermined region;
  Detecting means for detecting a resident in the predetermined area;
  Based on the output of the detecting means, time calculating means for calculating the staying time of the visitor in the predetermined area;
  From the output of the virus concentration calculation means and the output of the time calculation means, a virus exposure calculation means for calculating the virus exposure amount of the visitor;
  Storage means for storing a threshold of virus exposure;
  A control unit that determines that the output of the virus exposure amount calculation means is equal to or greater than the threshold;
  Informing means for informing the risk of virus infection for the visitor according to the output of the control unit,
Notification system.

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