JP2020003149A - Control system for air cleaning equipment - Google Patents

Abstract

To provide a control system for air cleaning equipment capable of enhancing comfort of a user, by automatically and properly controlling air cleaning equipment according to an air pollution degree of the visiting place outside of a home of a user.SOLUTION: In a building 10, a whole building air conditioning system is introduced by an air conditioner 21. A sterilization gas supply device 22 is connected to the air conditioner 21, and a sterilization gas is contained in the conditioned air generated by the air conditioner 21. Based on the location information of communication terminals 41-43, going out and coming home of a resident are detected, the visiting place is specified, and estimated homecoming time is calculated. Also, the air quality information of the visiting place specified via a network N is acquired from a meteorological information providing server 35 and the like. Then, based on the air quality information of the visiting place and the estimated homecoming time, the concentration of the sterilization gas in the conditioned air is determined.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a control system for an air cleaning facility.

  2. Description of the Related Art Conventionally, the degree of smell and dust in a room where an air purifier is installed (air pollution information) can be known from a user via a communication terminal provided by a user, and the air cleaner is communicated based on the air pollution information. A technique of remotely controlling a terminal has been proposed (Patent Document 1). In the related art, for example, when the outside air is contaminated, the user himself / herself determines the degree of the outside air contamination, and remotely controls the air purifier according to the degree of the air contamination. You can also.

JP-A-2006-90194

  However, after remote control of the air purifier in accordance with the degree of air pollution at a destination, the surrounding environment of the user changes, and accordingly, the degree of air pollution received by the user may change. In such a case, in the related art, in order to make the operation level of the air purifier appropriate, the user himself / herself grasps the change of the air pollution, and when there is a change, sets the air purifier. It had to be changed by remote control. Once the air purifier has been set by remote control, the setting can be kept as it is, but the comfort after returning home is reduced.

  The present invention has been made in view of the above circumstances, and air that can enhance user comfort by automatically and appropriately controlling air purifying equipment in accordance with the degree of air pollution at the place where the user goes. An object of the present invention is to provide a control system for a cleaning facility.

In order to achieve the above object, the first invention is:
A facility control unit for controlling air purifying equipment for purifying air in the building;
A first acquisition unit configured to acquire air pollution information in a place where the user is outside;
A second acquisition unit that acquires return period information required to return to the building from the outside,
An air purification level of the air purification equipment controlled by the equipment control unit based on the air pollution information of the place of going out acquired by the first acquisition unit and the return period information acquired by the second acquisition unit. An operation mode determining unit that determines
It is characterized by having.

  According to the first aspect, air pollution information of a destination is acquired. By using the air pollution information of the destination, the operation mode of the air cleaning equipment is controlled according to the degree of air pollution of the destination. At this time, return period information required to return to the building from whereabouts is also acquired. The influence of air pollution (the degree of adhesion of contaminants, etc.) received on the go depends on whether the return period is short or long. Therefore, in the first invention, the operation mode of the air purifying equipment is determined by considering the return time from a destination. As a result, the air cleaning equipment is automatically and appropriately controlled, and the comfort of the user can be improved.

  A second invention is characterized in that, in the first invention, the operation mode determination unit increases the air purification level when it is determined from the air pollution information that there is air pollution at a destination.

  When there is air pollution at a destination, the pollutants adhere to the user, clothes, belongings, and the like, and contaminate the area around the user. In such a case, when the user returns to the building from outside, the inside of the building is contaminated by the attached pollutants. Therefore, in the second invention, the level of air cleaning is increased in the air cleaning equipment by considering such contamination. Thereby, the air cleaning equipment is automatically and appropriately controlled, and the comfort of the user can be enhanced.

  In a third aspect based on the first or second aspect, the driving mode determining unit determines whether the return period information indicates that a return period from a destination is a predetermined period or more based on the return period information. Regardless, the air cleaning level is reduced.

  If the return period required to return to the building from outside is longer than a certain period, it is not necessary to immediately drive based on the air pollution information because it takes time to return home. In other words, the air purification level may be increased when the return period is less than the predetermined period, and the air purification level is reduced when the return period is longer than the predetermined period. Therefore, it is possible to automatically and appropriately control the air purifying equipment according to the return period of the user from the outside, and the user's comfort is maintained.

According to a fourth aspect, in any one of the first to third aspects,
The air purification equipment,
Air conditioning equipment throughout the building that constantly air-conditions the entire area of the building,
A spray unit that is incorporated in the whole building air conditioner and sprays a disinfecting gas,
With
The air cleaning level determined by the operation mode determination unit is characterized by adjusting the amount of the sterilizing gas released by the spraying unit, or determining whether the sterilizing gas is released.

  According to the fourth aspect, the air cleaning level is determined by the amount of the sterilized gas released or the presence or absence of the release. That is, based on the air pollution information of the destination and the return period from the destination, the release amount of the sterilization gas is adjusted or the release of the sterilization gas is stopped (or started). Thus, while improving the user's comfort, in a situation where disinfecting gas is not required (for example, when the user returns from an outside place for a certain period of time or more), the amount of disinfecting gas is automatically released. Limited and saves on sanitizing gas.

The schematic diagram which shows the structure of the control system of a disinfection gas supply facility. The figure which shows the concept of a stay information storage area. 9 is a flowchart showing control processing of the disinfecting gas supply equipment. 9 is a flowchart illustrating a process of adjusting a disinfecting gas. 9 is a flowchart illustrating adjustment processing when absent.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In this embodiment, a resident X, a resident Y, and a resident Z reside in the building 10. In the following description, when all the residents X to Z are meant, they are simply referred to as all the residents.

  As shown in FIG. 1, a building 10 is provided with a machine room 11, a living room 12, and the like as indoor spaces. An air conditioner 21 is provided in the machine room 11. The machine room 11 is always capable of ventilation. The building 10 is provided with a plurality of living rooms, corridors, toilets, bathrooms, and the like, in addition to a machine room 11 and a living room 12 (hereinafter collectively referred to as rooms 11 and 12), but these are not shown.

  In the building 10, a whole building air conditioning system including an air conditioner 21 is introduced. In the entire building air-conditioning system, the air-conditioning air is supplied from the common air-conditioning device 21 to the living room 12 and other spaces provided in the building 10 to cool and heat those spaces. Further, in the present embodiment, the sanitizing gas is supplied to each space using the whole building air conditioning system. Hereinafter, a configuration of a control system of a disinfecting gas supply facility for supplying the disinfecting gas will be described with reference to FIG.

  As shown in FIG. 1, an underfloor space 14 is provided below each of the rooms 11 and 12, and is separated from each of the rooms 11 and 12 by a floor 15.

  The air conditioner 21 is configured as an indoor unit having at least cooling and heating functions. The air conditioner 21 generates the conditioned air to be supplied to the living room 12 and the like by taking in the air in the machine room 11 as return air RA and adjusting the temperature. A ventilation duct 24 is connected to the air conditioner 21, and the ventilation duct 24 branches in the middle. One of the branched ventilation ducts 24 extends toward the living room 12 in the underfloor space 14 and is connected to an air supply grill 25 provided on the floor 15 of the living room 12.

  In this case, when conditioned air is supplied from the air conditioner 21 to the air supply grill 25 through the ventilation duct 24, the air conditioned air is blown out from the air supply grill 25 to the living room 12 as air supply SA. Thereby, during the heating operation of the air conditioner 21, warm air is supplied to the living room 12 as conditioned air, and the warm air warms the living room 12. On the other hand, during the cooling operation of the air conditioner 21, cool air is supplied to the living room 12, and the cool air cools the living room 12.

  A sterilizing gas supply device 22 is connected to the air conditioner 21 via a pipe 22a. The disinfecting gas supply device 22 is a device that can generate disinfecting gas, and can generate chlorine dioxide as disinfecting gas, for example.

  The air-conditioning apparatus 21 causes the generated air-conditioned air to contain a disinfecting gas (FIG. 1, disinfecting gas is injected from the disinfecting gas supply device 22 in the direction of the arrow through the pipe 22a), and the air-conditioning air is passed through the ventilation duct 24. To supply. A sanitizing gas sensor 23 (hereinafter, sensor 23) is attached just before the air duct 24 branches off. The sensor 23 detects the concentration of the sterilizing gas in the conditioned air.

  Next, an electrical configuration of the present system will be described with reference to FIG.

  The building 10 is provided with a controller 30 for controlling the whole building air conditioning system. The controller 30 is attached to, for example, the wall of the living room 12. The controller 30 includes a well-known microcomputer including a CPU, a ROM, a RAM, and the like. The controller 30 includes a control unit 31 that controls the air conditioner 21 and the sterilizing gas supply device 22, a storage unit 32 that stores information on the air conditioner 21, detection results from various sensors, and the like. And a timer 33 used for

  The control unit 31 controls the temperature of each space so as to be a preset temperature set by the occupants X to Z, or adjusts the concentration of the disinfecting gas contained in the generated conditioned air at home of the occupants X to Z. Control according to the situation. The resident information of the building 10 (such as an ID for identifying the communication terminals 41 to 43 to be described later), the set temperature of the air conditioner 21, the set concentration of the sterilizing gas, and the like are stored in the storage unit 32 in advance. The time when going out and returning home from X to Z are detected are recorded as needed. In addition, the storage unit 32 includes a detection history storage area 32a and a stay information storage area 32b.

  The sensor 23 is connected to the controller 30. The concentration of the sterilizing gas in the conditioned air detected by the sensor 23 is output to the controller 30, and the controller 30 controls the supply amount of the sterilizing gas from the sterilizing gas supply device 22 based on the concentration.

  In the present embodiment, the set concentration of the disinfecting gas in the conditioned air is about 0.01 ppm (hereinafter, a normal level) when there is a home resident. In addition to the normal level, the set concentration of the disinfecting gas is a "weak level" of less than 0.01 ppm (for example, about 0.001 ppm) and 0.02 ppm or more (for example, about 0.03 ppm). The “strong level” is stored in the storage unit 32.

  A communication unit 34 is connected to the controller 30, and the controller 30 can be connected to the network N by the communication unit 34. Portable communication terminals 41 to 43 such as smartphones can be connected to the network N. The residents X to Z carry out the communication terminals 41 to 43 and go out.

  Each of the communication terminals 41 to 43 has a GPS function, and generates position information of itself (the communication terminals 41 to 43) by receiving radio waves transmitted from GPS satellites. Each of the communication terminals 41 to 43 can store its own positional information in association with time information as a history of positional information. Note that map information is stored in the communication terminals 41 to 43, and the staying places of the residents X to Z are determined by collating the map information with the position information.

  When the residents X to Z go out, the communication terminals 41 to 43 detect it based on their own location information and notify the controller 30 via the network N that the residents X to Z are going out. Then, when the residents X to Z return to the building 10, the communication terminals 41 to 43 detect it based on their own location information and notify the controller 30 that the residents X to Z have returned home.

  The communication terminals 41 to 43 receive the instruction from the controller 30 and transmit the history of the position information to the controller 30. The controller 30 records the history of the received position information of the communication terminals 41 to 43 (the history based on the GPS coordinates and the map information) in the detection history storage area 32a. Then, based on the information recorded in the detection history storage area 32a, the control unit 31 analyzes the destinations (stay places) of the residents X to Z, and analyzes the stay time at the specified destinations, and the like. The analysis result is recorded in the stay information storage area 32b. Then, the controller 30 determines transportation means of the residents X to Z from the history of the position information of the communication terminals 41 to 43, and calculates a required time from the current position to the building 10 based on the determination. The required time corresponds to the estimated return time.

  In the present embodiment, the control unit 31 determines the “stay place” in the history of the position information based on the map information in relation to the acquisition of air quality information described later. In the present embodiment, in a facility such as a building, a school, a store, a park, or the like, when the detection is continuously performed within the same facility (site) for 10 minutes or more, the place is determined as a “stay place”.

  FIG. 2 shows the concept of the stay history recorded in the stay information storage area 32b. In the stay information storage area 32b, a stay place determined to be “stay” and a stay time at the place are recorded. The controller 30 accesses the weather information providing server 35 (see FIG. 1) operated by a weather information provider (for example, the Meteorological Agency) via the network N, and outputs pollen scattering information, PM2. 5 Acquire air quality information such as scattering information based on time information. In the present embodiment, the pollen and the PM2.5 scattering information acquired from the weather information providing server 35 have three levels (level 1: small, 2: large, 3: Very much).

  In the present embodiment, pollution prediction based on geographical factors obtained from map information is also included as air quality information. For example, in the case where the staying place of the residents X to Z is a place where a smell is generated (a yakiniku restaurant, a pub, etc.), the environment is easy to smell, and it can be determined that the environment has poor air quality. If the place of stay is a place where sand or pollen is generated (playground, park, forest, or the like) or in the vicinity, it can be determined that the environment is susceptible to contamination by flying substances such as sand or pollen. The pollution forecast based on these geographical factors is also reflected as air quality information.

  The place where the smell is generated is determined as “contaminated” when staying at that place based on the classification of the store in the map information. Based on the map information, the location where sand or pollen is generated is determined to be "contaminated" if the pollen scattering information obtained from the weather information providing server 35 is two or more within a radius of 300 m from the location.

  The acquired air quality information is recorded in association with each stay place (recorded in the stay information storage area 32b in the present embodiment). Then, based on the air quality information, the air pollution degree is calculated as a comprehensive evaluation in three stages. The air pollution degree can be classified into, for example, three stages as follows; level 1 in pollen and PM2.5 scattering information, level A in the case of "no pollution" in geographical factors; pollen and PM2.5 scattering information Level B in the case of "no contamination" in the geographical factor, and level B in the pollen and PM2.5 scattering information, and level B in the case of "no contamination" in the geographical factor, or "contaminated" in the geographical factor (Level 1 to 3 in pollen scattering information or PM2.5 scattering information).

  Next, the control process of the sterilization gas executed by the controller 30 will be described with reference to the flowchart of FIG. In the building 10, air conditioning in the entire building by the air conditioner 21 is constantly performed. The flowchart in FIG. 3 is based on the assumption that the air-conditioning is performed in the whole building and the concentration of the disinfecting gas is set to the “normal level” when at least one of the residents X to Z is at home.

  In FIG. 3, in step S11, it is determined whether or not going out is detected. If it is detected that the user has gone out, a YES determination is made and the process proceeds to step S12. If no outing has been detected, a NO determination is made and this process ends.

  In step S12, the timer 33 starts counting time. After the start of the timing, the process proceeds to step S13. In step S13, it is determined whether or not a predetermined time T2 has elapsed from the start of time measurement by the timer 33. Here, the predetermined time T2 may be any time as long as it is possible to determine whether or not the residents X to Z are out of the neighborhood, for example, about 1 to 2 hours. In this embodiment, it is 1.5 hours. When the predetermined time T2 has elapsed, the determination is YES and the process proceeds to step S14. If the predetermined time T2 has not elapsed, the determination is NO and the process returns to step S13, and the process is repeated until the predetermined time T2 has elapsed.

  In the following step S14, the history of the position information is acquired by the communication terminals 41 to 43, and the acquired data is analyzed. Here, the history of the position information from the detection of the going out to the current time (that is, during the predetermined time T2) is acquired. The history of the acquired position information is recorded in the detection history storage area 32a, analyzed, and the stay place determined to be "stay" is recorded in the stay information storage area 32b together with the stay time. Then, the information on the pollen and PM2.5 scattering at the place of stay is obtained via the network N, and the presence or absence of air pollution based on geographical factors at the place of stay is also determined based on the map information.

  Here, as shown in the stay information storage area 32b of FIG. 2, going out by the resident X is detected at 7:30. Thereafter, after a lapse of a predetermined time T2 (that is, at 9:00 in this case), the history of the positional information of all the residents for a predetermined period T2 (7:30 to 9:00) is acquired. At 9:00, resident X has arrived at the company, resident Y is at home (staying home for 90 minutes), and resident Z is moving (going out at 7:56). Therefore, at 9:00, residents X and Z are outgoing persons, and resident Y is a resident. When it is determined that the residents X to Z are staying at an arbitrary place, the air quality information of the stay place is also acquired, and the air pollution degree is calculated.

  The control process of the disinfecting gas is started by detecting that one of the residents X to Z has gone out. For example, one or two of the other residents X to Z have gone out afterwards. In this case, going out is determined based on the history of the position information in step S14 and steps S28 and S47 described later.

  Next, the process proceeds to step S15, and it is determined whether all the residents are at home based on the position information. If all the residents are at home, the determination is YES and the process ends. If not all residents are at home, the determination is NO and the process proceeds to step S16.

  Here, when it is determined that all the residents are at home in step S15, it means that the outsider has returned before the predetermined time T2 has elapsed, and it can be estimated that the user has gone out to the neighborhood. In the case of going out to such a neighborhood, the effect of saving the disinfecting gas cannot be greatly expected, so that the adjusting process of the disinfecting gas (adjustment of the supply amount) is not performed.

  If there is a person who has gone out, the process proceeds to step S16, and the estimated return time of the person who has gone out is calculated. As shown in FIG. 2, the estimated time of returning home from the current position of 9:00 is calculated for the residents X and Z who are out. In a succeeding step S17, a sterilization gas adjustment process is performed.

  In the sterilization gas adjustment process, as shown in FIG. 4, first, in step S21, it is determined whether or not all the residents are out. If all the residents are out, a YES determination is made and the process proceeds to step S33. When all the residents are not out, that is, when at least one of the residents X to Z is at home, the determination is NO and the process proceeds to step S22.

  In step S33, an absent adjustment process is performed. The absence adjustment process is a process executed when all the residents are absent. In the absent adjustment process, as shown in FIG. 5, first, in step S41, the timer 33 starts counting time. After the start of the timing, the process proceeds to step S42. In step S42, it is determined whether or not there is a person whose estimated return time is shorter than the predetermined time T1. Here, the predetermined time T1 may be a time at which the concentration of the sterilizing gas in the space such as the living room 12 becomes higher than the normal level when the concentration of the sterilizing gas is changed to the high level. Therefore, the predetermined time T1 is, for example, 0.5 to 2 hours, and is 1 hour in the present embodiment. Also, the estimated return time is calculated in steps S35 and S49, which will be described later, in addition to step S16. Here, it is assumed that the estimated time to return home is the latest among them. If there is a person whose estimated return time is less than T1, a YES determination is made and the process proceeds to step S43. If there is no person whose estimated home return time is less than T1, a negative determination is made and the process proceeds to step S46.

  In step S46, the concentration of the sterilization gas is set to a low level. Here, it is assumed that not all the residents are at home in the building 10 and, for example, one of the residents X to Z is in a place where it takes a predetermined time T1 or more to return home. In this case, there is no inconvenience even if the concentration of the disinfecting gas is reduced, which leads to saving of the disinfecting gas. After the low level, the process proceeds to step S47.

  In step S47, it is determined whether or not the standby time has elapsed since the timer 33 started counting time. Here, the predetermined time T1 may be a time at which the concentration of the sterilizing gas in the space such as the living room 12 becomes higher than the normal level when the concentration of the sterilizing gas is changed to the high level. Therefore, the predetermined time T1 is, for example, 0.5 to 2 hours, and is 1 hour in the present embodiment. If the standby time has elapsed, the determination is YES and the process proceeds to step S48. If the standby time has not elapsed, the determination is NO and the process returns to step S47, and the process is repeated until the standby time has elapsed.

  When there is a person whose estimated return time is less than T1, the process proceeds to step S43, and the normal level is maintained without changing the concentration of the sterilization gas in the conditioned air. Here, since it is assumed that there are residents X to Z (first returnees) who will return home soon based on the estimated return time, the concentration of the sterilizing gas is set to the normal level. In a succeeding step S44, it is determined whether or not returning home is detected. When the position information from the communication terminals 41 to 43 is the building 10, the controller 30 is notified of the return of the residents X to Z, so that it is determined whether or not the notification has been received. If there is a notification of returning home, that is, if returning home is detected, the determination of YES is made and the adjustment process when absent is completed. When there is no notification of returning home, that is, when returning home is not detected, the determination is NO and the process proceeds to step S45.

  In step S45, it is determined whether or not the estimated return time has passed since the timer 33 started counting time. Here, the shortest estimated time to return home among the latest estimated times to return home for residents X to Z (calculated in step S16 or steps S35 and S49 described below) may be used as a reference. When the estimated return time has elapsed, the process proceeds to step S48. If the estimated return-to-home time has not elapsed, the determination is NO and the process returns to step S44, and the process is repeated until the estimated return-to-home time has elapsed.

  In step S48, the history of the position information is acquired by the communication terminals 41 to 43, and the acquired data is analyzed. Here, when the process proceeds from step S44 to step S48, the history corresponds to the calculated estimated return home time, and when the process proceeds from step S47 to step S48, the history corresponds to the predetermined time T1. The history of the acquired position information is recorded in the detection history storage area 32a, analyzed, and the stay place determined to be "stay" is recorded in the stay information storage area 32b together with the stay time. Then, the information on the pollen and PM2.5 scattering at the place of stay is obtained via the network N, and the presence or absence of air pollution based on geographical factors at the place of stay is also determined based on the map information.

  In step S49, the estimated return time of the outsider (all residents in this case) is calculated from the position information. After calculating the estimated return time, the process returns to step S41, and each process is repeated.

  In other words, the adjustment process when absent is repeated until the first returnee (at least one of the residents X to Z) is detected in step S44. After the end of the absence adjustment process, the process returns to FIG. 4 and proceeds to step S21.

  If all the members have not gone out in step S21, that is, if at least one of the residents X to Z is at home, the determination is NO and the process proceeds to step S22. In step S22, the timer 33 starts counting time. After the start of the timing, the process proceeds to step S23.

  In step S23, it is determined whether or not there is a person whose estimated return time is shorter than the predetermined time T1. Here, the predetermined time T1 is one hour as described above. When there is a person whose estimated return time calculated in step S16 is less than T1, a YES determination is made and the process proceeds to step S24. If there is no person whose estimated home return time is less than T1, a negative determination is made and the process proceeds to step S31.

  Here, a description will be given of the storage contents of the stay information storage area 32b in FIG. 2 as an example. In the stored contents, at 9:00, the resident X: 90 minutes and the resident Z: 65 minutes are calculated as the estimated times to return home. In this case, since there is no person whose estimated return time is less than one hour, the process proceeds to step S31.

  In step S31, it is determined whether or not a standby time (a predetermined time T1 in the present embodiment) has elapsed since the timer 33 started counting time. If the standby time has elapsed, the determination is YES and the process proceeds to step S28. If the standby time has not elapsed, the determination is NO and the process returns to step S31, and the process is repeated until the standby time has elapsed.

  In step 24, the place of stay immediately before the resident X-Z who is out is specified. Here, as the last stay place, the latest place recorded as the stay place is selected from the contents recorded in the stay information storage area 32b. In the following step S25, it is determined whether or not the resident X to Z whose estimated return time is less than the predetermined time T1 has a good air quality at the last stay place. Whether or not the air quality is good is referred to the air pollution degree which is the recorded content of the stay information storage area 32b. If the air pollution level is level B or C, it is determined that the air quality is poor. When it is determined that the air quality is good, the determination is YES and the process proceeds to step S26. When it is determined that the air quality is poor, the determination is NO, and the process proceeds to step S34. In the case where there are a plurality of residents X to Z whose estimated return time is less than the predetermined time T1, it is assumed that they return home early (that is, the shortest estimated return time). Refer to the air pollution degree.

  In step S34, the concentration of the sterilization gas in the conditioned air is changed to a high level. Here, the concentration of the disinfecting gas is increased based on the poor air quality of the place where the outsider stayed. As a result, a high concentration of disinfecting gas is supplied to the space such as the living room 12 of the building 10 and quickly acts on pollutants, PM2.5, odor and other polluting components adhering to those who have returned home. it can. Such contaminants adhering to outsiders also affect other residents X to Z who have been at home by being brought into the building 10. Therefore, by supplying a high concentration of sterilizing gas to the space inside the building 10, the function of the pollutant component can be quickly reduced, and the effect thereof can be suppressed. After changing the concentration of the sterilization gas in the conditioned air to a high level, the process proceeds to step S26.

  Here, if the air quality at the place of stay just before the outsider is poor in steps S25 and S34, the concentration of the sterilizing gas in the conditioned air is increased. In contrast, in the absence adjustment process (FIG. 5, step S43) when no resident X to Z is present in the building 10, the air quality information such as the place of stay immediately before the outsider returns home is determined. Not taken into account, the concentration of sanitizing gas remains at normal levels. This is determined based on whether or not there is a resident at the time when the outsider returns home, and consideration is given to whether or not the contaminated component attached to the outsider affects the other residents X to Z. That is, when there are no residents X to Z at home, even if one of the residents X to Z returns home, it does not affect the other residents X to Z. The degree of contamination (function) of the self-adhering component may then be gradually reduced by the disinfecting gas present in the space such as the living room 12.

  In step S26, it is determined whether returning home has been detected. If returning home has not been detected, a NO determination is made and the process proceeds to step S32. When returning home is detected, YES is determined and the process proceeds to step S27.

  In step S32, it is determined whether or not the estimated return-to-home time has elapsed since the timer 33 started counting time. Here, the shortest estimated time to return home among the latest estimated times to return home of the residents X to Z (calculated in steps S16 and S49 or step S35 described later) may be used as a reference. If the estimated return time has elapsed, the process proceeds to step S28. If the estimated return-to-home time has not elapsed, a NO determination is made, the process returns to step S26, and each process is repeated.

  In step S27, the concentration of the sterilizing gas in the conditioned air is set to a normal level. Here, when the process proceeds from step S25 to step S27 via steps S34 and S26, the concentration of the sterilization gas is set to a high level. Therefore, in this case, the setting of the concentration of the sterilization gas is changed. When the process proceeds from step S25 to steps S26 and S27, the normal level is maintained without changing the concentration of the sterilizing gas in the conditioned air.

  In step S28, the history of the position information is acquired by the communication terminals 41 to 43, and the acquired data is analyzed. Here, the history of the position information from the last acquisition of the history of the position information to the current time is acquired. The history of the acquired position information is recorded in the detection history storage area 32a, analyzed, and the stay place determined to be "stay" is recorded in the stay information storage area 32b together with the stay time. Then, the information on the pollen and PM2.5 scattering at the place of stay is obtained via the network N, and the presence or absence of air pollution based on geographical factors at the place of stay is also determined based on the map information.

  In a succeeding step S29, it is determined whether or not all the residents are currently at home based on the position information acquired by the communication terminals 41 to 43. If all members are at home, the determination is YES and the present process ends. When all the members are not at home, that is, when there is a person who is out, a NO determination is made and the process proceeds to step S35.

  In step S35, the estimated return time of the out-of-home person is calculated. Thereafter, the process returns to step S21, and each process is repeated. That is, the sterilization gas adjustment process is repeated until all the residents return to the building 10 (YES in step S29). After the end of the sterilization gas adjustment processing, the flow returns to the description of FIG. 3 and the present processing ends.

  According to the configuration of the present embodiment described in detail above, the following excellent effects can be obtained.

  According to the present embodiment, the occupants X to Z are each specified to go out, and by using the air quality information of the specified go-out, it is supplied through the whole building air conditioning system according to the air pollution degree of the go-out. The amount of sterilizing gas is controlled. At this time, the estimated return time required to return to the building 10 from the place where the user is going out is also calculated. The influence of the air pollution (the degree of adhesion of pollutants, etc.) received at the place where the user goes home is short or long. In addition, when the estimated time to return home is long, it is a situation that it takes time to return home.For example, it is possible to continue staying there and not return home for a long time, and then move to a place with a different air quality. It is also conceivable that the degree of contaminants adhering to outsiders changes. That is, the probability that the situation will change is different depending on whether the estimated return time is short or long. Therefore, in the present embodiment, the operation mode of the sterilization gas is determined depending on whether the estimated return time is short or long. As a result, the supply amount (concentration) of the disinfecting gas is automatically and appropriately controlled, and it is possible to save the disinfecting gas while increasing the comfort of the residents X to Z.

  When there is air pollution at a place where the person goes out, the pollutant adheres to the person, clothes, belongings, and the like, and contaminates around the person. In such a case, when the outsider returns to the building 10, the inside of the building 10 is polluted by the attached pollutants. Such contaminants adhering to outsiders affect other residents X to Z who have been at home by being brought into the building 10. Therefore, in the present embodiment, in a situation where there is a resident in the building 10, when it is determined that the estimated return time of the outgoing person is less than the predetermined time T1 and the air quality of the outing place of the outgoing person is contaminated, Raise the concentration of sterilizing gas in conditioned air to a strong level. By supplying a high concentration of disinfecting gas into the building 10, the disinfecting gas can quickly act on pollutants, such as pollen, PM2.5, and odor, attached to the person who has returned home. That is, by supplying a high-concentration disinfecting gas into the building 10 in advance, the function of the polluting component can be rapidly reduced, and the influence thereof can be suppressed. This makes it possible to enhance the comfort of not only the outgoing persons (residents X to Z) who have returned home but also the other residents X to Z who have been at home in the building 10.

  On the other hand, when the estimated return time of the out-going person is equal to or longer than the predetermined time T1, even if the concentration of the disinfecting gas is changed to a high level in accordance with the air quality condition of the out-going stay of the out-going person, the situation remains unchanged. It is likely to change. In the present embodiment, in a situation where there is a resident at home in the building 10, if the estimated return time of the outgoing person is equal to or longer than the predetermined time T1, the air quality of the outing place of the outgoing person is determined to be contaminated. Even if it does, the concentration of the sterilizing gas in the conditioned air is kept at the normal level. In such a situation, when the estimated return time is shorter than the predetermined time T1, the concentration of the sterilizing gas in the conditioned air is changed according to the degree of air pollution at the destination. Thereby, when a person who goes out returns to the building 10, the concentration of the disinfecting gas in the building 10 is adjusted according to the degree of air pollution at the place where he / she goes, so that comfort is not impaired. That is, according to the present embodiment, the comfort of the residents X to Z is improved while the concentration of the sterilizing gas is not changed when the estimated time of returning to the home of the outsider is equal to or longer than the predetermined time T1. Unnecessarily high levels of concentration can be reduced, and disinfecting gas can be saved.

  When all the residents go out and the estimated return time of all the residents is equal to or longer than the predetermined time T1, it is assumed that it takes time for at least one of the residents X to Z to return home as the first returnee. In such a case, it is considered that it is not necessary to continuously sterilize the inside of the building 10 at the normal level. In other words, the concentration of the disinfecting gas in the building 10 should be at a normal level when the first returnee comes home. Therefore, according to the present embodiment, when the estimated return time of all the residents is equal to or longer than the predetermined time T1, the concentration of the sterilized gas is reduced to a weak level. When the estimated return time of at least one of the residents X to Z is shorter than the predetermined time T1, the concentration of the sterilized gas is raised to the normal level. Thereby, the supply amount (concentration) of the disinfecting gas is automatically and appropriately controlled, and the disinfecting gas can be saved while increasing the comfort of the residents X to Z. Further, by saving the disinfecting gas, the work such as replacement of the disinfecting gas cartridge can be reduced, so that the comfort of the residents X to Z can be further improved.

  In a situation where all the residents go out and there are no residents in the building 10, for example, even if the resident X brings back the pollutants when returning home, the residents Y and Z are not affected because they are absent. . Therefore, the contaminants need not be immediately removed but may be removed before the residents Y and Z return home. Therefore, according to the present embodiment, when at least one of the residents X to Z returns to the building 10 as the first returnee in a situation where there is no resident in the building 10, the air quality information is not considered and the air-conditioned air is not considered. The concentration of the sanitizing gas in it is considered to be "normal level". Thereby, the sanitizing gas can be saved while enhancing the comfort of the residents X to Z when returning to the building 10.

  According to the present embodiment, when the estimated return time is shorter than the predetermined time T1, if no return is detected even after the estimated return time has elapsed, the history of the position information is acquired again. In the case where the estimated return time is equal to or longer than the predetermined time T1, if the time (standby time) obtained by subtracting T1 from the estimated return time elapses, the history of the position information is acquired again. Therefore, even when the residents X to Z drop in from one place to another place, the drop-in place can be specified, and based on the latest degree of air pollution at the place of stay (drop-in place), the exclusion in the air-conditioned air can be determined. The concentration of the germ gas can be determined. Thereby, the comfort of the residents X to Z can be further enhanced.

  The present invention is not limited to the above embodiment, and may be implemented, for example, as follows.

  (1) In the above embodiment, the position information is acquired by the communication terminals 41 to 43 such as a smartphone. However, the present invention is not limited to this. For example, a car navigation provided in a vehicle owned by the residents X to Z An apparatus may be used. When position information is acquired by vehicle, one of the residents X to Z is assigned to one vehicle. Thereby, the position information of the assigned occupants X to Z is obtained from the position information of the vehicle. The position information of the vehicle can be transmitted to the controller 30 via a communication unit mounted on the car navigation device.

  (2) In the above embodiment, the number of places to go is one, but there may be a plurality of places to go. In this case, the concentration of the sterilized gas may be set to a high level if there is a place with a high air pollution degree based on the air quality information, and the air of the last one of the plurality of places to go out. The concentration of the sterilization gas may be determined based on the contamination.

  (3) In the above-described embodiment, the adjustment process of the sterilization gas is on standby until the predetermined time T2 elapses after the detection of the outing. For example, the adjustment process of the sterilization gas is performed immediately after the detection of the outing. You may start. For example, immediately after an outing is detected, the home status of all the residents is grasped based on the position information. When all the residents are out, that is, when it is considered that all the residents have gone out at the same time, even if all the residents are absent and the estimated time to return home is less than the predetermined time T1, the concentration of the sterilized gas is reduced. May be changed to “weak level”.

  (4) In the above embodiment, when the estimated time of returning to the home of the outgoing person is equal to or longer than the predetermined time T1, the history of the position information is acquired again after the elapse of the predetermined time T1 as the standby time. It is not necessary. For example, the standby time may be a time obtained by subtracting the predetermined time T1 from the estimated return time, or may be a half of the predetermined time T1.

  (5) In the above embodiment, when all the residents are absent and the estimated return time of all the residents is equal to or longer than the predetermined time T1, the concentration of the sterilizing gas is set to a low level (FIG. 5, step S46). Control of the concentration of the germ gas is not limited to this. For example, when all the residents are absent and the estimated return time of all the residents is equal to or longer than the predetermined time T1, the supply of the sterilizing gas may be stopped. When all the residents are absent and there are residents X to Z whose estimated return time is less than the predetermined time T1, the concentration of the sterilized gas is set to a low level until the shortest estimated return time has elapsed, and then to the normal level. You may return it.

  (6) In the above embodiment, when the concentration of the disinfecting gas is set to the high level (FIG. 4, step S34), when it is detected that the residents X to Z return home (step S26), the concentration of the disinfecting gas is set to the normal level. Although the level is returned to the level (step S27), the control of the concentration of the sterilization gas is not limited to this. For example, once the concentration of the sterilization gas is set to a high level, the supply amount may be returned to the normal level after maintaining the supply amount for a predetermined time (for example, about 0.5 to 1.5 hours).

  (7) In the above embodiment, the sensor 23 is provided in the ventilation duct 24. However, the sensor 23 may be provided in a space (for example, the living room 12) to which conditioned air is supplied. Thereby, since the concentration of the sterilizing gas in the space to which the conditioned air is supplied is detected, the concentration of the sterilizing gas in the space can be more quickly controlled.

  (8) In the above-described embodiment, the sanitizing gas supply device 22 introduced into the whole building air conditioning system as the air cleaning facility is described. However, the air cleaning facility is not limited to the whole building air conditioning system or the sanitizing gas supply device 22. As the air purifying equipment, for example, instead of the whole building air conditioning system, an air purifier with an air purifying function provided in each space may be used, an air purifier alone, an air purifier with a humidifying function, or the like. You may. In addition, the air cleaning method is not limited to the sterilizing gas, and may be, for example, an apparatus that performs air cleaning using a filter, activated carbon, a photocatalyst, plasma, ions, or the like instead of the sterilizing gas supply device 22. .

  DESCRIPTION OF SYMBOLS 10 ... Building, 21 ... Air conditioner, 22 ... Disinfection gas supply device, 23 ... Disinfection gas sensor, 24 ... Ventilation duct, 30 ... Controller, 31 ... Control unit, 32 ... Storage unit, 33 ... Timer, 34 ... Communication unit , 35 ... weather information providing server, 41, 42, 43 ... communication terminal, N ... network.

Claims (4)

A facility control unit for controlling air purifying equipment for purifying air in the building;
A first acquisition unit configured to acquire air pollution information in a place where the user is outside;
A second acquisition unit that acquires return period information required to return to the building from the outside,
An air purification level of the air purification equipment controlled by the equipment control unit based on the air pollution information of the place of going out acquired by the first acquisition unit and the return period information acquired by the second acquisition unit. An operation mode determining unit that determines
A control system for an air purifying facility, comprising:   The control system of the air purification equipment according to claim 1, wherein the operation mode determination unit increases the air purification level when it is determined that there is air pollution at an outing place based on the air pollution information.   The operation mode determination unit according to claim 1, wherein when the return period from the outside is determined to be equal to or longer than a predetermined period based on the return period information, the air purification level is reduced regardless of the air pollution information. The control system of the air purifying equipment as described. The air purification equipment,
Air conditioning equipment throughout the building that constantly air-conditions the entire area of the building,
A spray unit that is incorporated in the whole building air conditioner and sprays a disinfecting gas,
With
The air cleaning level determined by the operation mode determination unit is an adjustment of a release amount of the sterilizing gas by the spray unit, or presence / absence of the sterilizing gas release. 3. The control system for an air purifying facility according to claim 1.

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