JP7249068B1 - ventilation control system - Google Patents

Abstract

An optimum indoor environment is provided by resetting the control conditions of a ventilator in real time according to the indoor environment or by changing the control conditions each time. SOLUTION: In a ventilation control method for controlling an indoor ventilation device 2, a detection step of detecting indoor temperature, indoor humidity, and indoor carbon dioxide concentration; A determination step of determining the degree of necessity of control of the ventilation device 2 based on the detected indoor temperature, indoor humidity, and carbon dioxide concentration, and controlling the ventilation device 2 based on the degree of necessity determined in the determination step. and a control step, wherein the ventilation control conditions are set remotely via wireless communication. [Selection drawing] Fig. 3

Description

The present invention relates to a ventilation control system for controlling a ventilation device that ventilates a room.

Indoor comfort depends on temperature, humidity, and carbon dioxide concentration. In addition to this, comfort varies depending on the degree of odor and ozone concentration. In order to obtain such indoor comfort, the temperature and humidity are controlled appropriately by using an air conditioner. In addition to the above-described temperature and humidity, carbon dioxide concentration, odor, and ozone concentration are appropriately controlled through a ventilating device using a ventilation fan, a total heat exchanger, a damper, or the like.

In seeking such indoor comfort, it is troublesome to manually control air conditioners and ventilators every time a person feels discomfort in the indoor space, and physically handicapped people who find it difficult to perform manual control. Air conditioners have been equipped with an automatic control function in consideration of elderly people and others. The automatic control function installed in this air conditioner detects the indoor temperature and humidity with a sensor, and controls the air conditioner so as to approach the preset temperature and humidity.

By the way, such an automatic control function has been installed in air conditioners for a long time, but not in ventilators. The reason for this is that the air conditioner itself is installed as a retrofit to the building structure, so it can be easily realized by providing such an automatic control function to the air conditioner alone. On the other hand, the ventilation system was designed from the outset to have a ventilation opening that penetrates from the interior of the building structure to the exterior, and a total heat exchanger such as a ventilation fan or damper is installed there. It operates through an operating mechanism installed in the For this reason, it was difficult to install an automatic control function as an air conditioner, and eventually the ventilation system had to be controlled manually.

On the other hand, if this ventilation device continues to ventilate even when the degree of carbon dioxide and odor has already been reduced through ventilation, the electricity bill associated with ventilation will increase, and it will also save energy. is also undesirable from the viewpoint of When the outside is relatively cool in the summer, turning off the air conditioner and ventilating the room through a ventilation system may cool the room. In such a case, it is desirable that the room temperature can be optimized and the ventilation can be achieved simultaneously with only the ventilation device, and energy can be saved by turning off the air conditioner.

In this way, in order to realize complete automatic control of the ON/OFF of the ventilation system or the control of the amount of ventilation, the indoor environment (indoor temperature, indoor humidity, indoor carbon dioxide concentration and odor level, indoor ozone concentration, etc.), it must be realized with high accuracy based on a complicated algorithm. For this purpose, it is necessary to provide the optimum indoor environment by resetting the optimum control conditions in real time according to such indoor environments or by making it possible to change the control conditions each time.

However, the current situation is that a technology itself for resetting or changing the control conditions themselves in real time from the outside has not been devised.

JP-A-5-196269

Accordingly, the present invention has been devised in view of the above-described problems, and its object is to provide a ventilation control system for controlling a ventilation device that performs indoor ventilation, in which the control conditions for the ventilation device are set to: The present invention relates to a ventilation control system capable of providing an optimum indoor environment by resetting the optimum control conditions in real time according to the indoor environment or changing the control conditions each time.

A ventilation control system according to a first aspect of the present invention is a ventilation control system for controlling only a ventilation device that ventilates a room, wherein the room temperature detection means detects the room temperature, the room humidity detection means detects the room humidity, a carbon dioxide concentration detection means for detecting the carbon dioxide concentration in the room; an indoor temperature detected by the indoor temperature detection means and an indoor humidity detected by the indoor humidity detection means with reference to ventilation control conditions; determining means for determining the degree of necessity of control of the ventilator based on the carbon dioxide concentration detected by the carbon dioxide concentration detecting means; and controlling the ventilator based on the degree of necessity determined by the determining means. and setting means for remotely setting the control conditions via wireless communication , wherein the setting means instructs any one of the indoor temperature, the indoor humidity, and the carbon dioxide concentration of the infectious disease risk. The indoor temperature detected by the indoor temperature detection means, the indoor humidity detected by the indoor humidity detection means, and the carbon dioxide concentration detected by the carbon dioxide concentration detection means are determined using the judgment model as data. The control conditions are set according to the infectious disease risk output from the determination model when the indoor temperature, the indoor humidity, and the carbon dioxide concentration newly acquired through wireless communication are input. It is characterized by

A ventilation control system according to a second invention is the ventilation control system according to the first invention, wherein in addition to the indoor temperature, the indoor humidity, and the carbon dioxide concentration, the indoor ozone concentration and the degree of odor in the room are controlled by the setting means. In addition to the newly detected indoor temperature, indoor humidity, and carbon dioxide concentration, either the newly detected ozone concentration or the degree of odor is input using a judgment model that uses infectious disease risk as teacher data. The control condition is set according to the infectious disease risk output from the determination model when the risk of infectious disease is determined.

A ventilation control system according to a third invention is, in the first invention or the second invention, with reference to the calibration conditions, the indoor temperature detected by the indoor temperature detection means, and the indoor humidity detected by the indoor humidity detection means. and further comprising calibration means for calibrating one or more of the carbon dioxide concentrations detected by the carbon dioxide concentration detection means, wherein the setting means remotely sets the calibration conditions via wireless communication. and

A ventilation control system according to a fourth aspect of the invention, in any one of the first to third aspects of the invention, further comprises outdoor temperature detection means for detecting an outdoor temperature, wherein the determination means refers to ventilation control conditions, Further, it is characterized in that the degree of necessity of control of the ventilation system is determined based on the outdoor temperature detected by the outdoor temperature detecting means.

A ventilation control system according to a fifth invention is the ventilation control system according to the fourth invention, wherein the setting means further acquires the outdoor temperature detected by the outdoor temperature detection means via wireless communication, and based on the acquired indoor temperature, It is characterized in that the above control conditions are set by

A ventilation control system according to a sixth aspect of the invention is characterized in that in the fifth aspect of the invention, the outdoor temperature detecting means detects the temperature of a suction portion of the ventilation device for drawing outside air into the room.

A ventilation control system according to a seventh invention is the ventilation control system according to the fourth invention, wherein in addition to the indoor temperature, the indoor humidity, the carbon dioxide concentration, and the outdoor temperature, the indoor ozone concentration and the degree of indoor odor In addition to the newly detected indoor temperature, indoor humidity, carbon dioxide concentration, and outdoor temperature, the newly detected ozone concentration , The control condition is set according to the infectious disease risk output from the determination model when any of the degrees of odor is input.

A ventilation control system according to an eighth invention is the ventilation control system according to any one of the first to third inventions, wherein the setting means further acquires operation information of the cooling and heating device, and further sets the control conditions based on the acquired operation information. characterized by

The present invention configured as described above can remotely set control conditions via wireless communication. Whether the current control conditions are suitable for each measurement data such as indoor humidity and carbon dioxide concentration from the viewpoint of any one or more of indoor comfort, energy saving, failure, heatstroke risk, infectious disease risk is determined by the management setting unit side, and automatically determined as necessary without intervention of the administrator's determination. As a result, if the control conditions are not suitable for the current indoor environment, the control conditions are immediately changed. As a result, instead of uniformly controlling ventilation under predetermined control conditions, ventilation can be controlled in real time under control conditions suitable for the environment, making the indoor environment more comfortable. be able to.

FIG. 1 is a block configuration diagram of a ventilation control system to which the present invention is applied. FIG. 2 is a diagram for explaining the configuration of the radio communication control unit. FIG. 3 is a diagram showing the operation sequence of the ventilation control system to which the present invention is applied. FIG. 4 is a diagram showing an example of measurement data aggregation results displayed on the user interface of the automatic controller. FIG. 5 is a sequence diagram for automatic determination using artificial intelligence (AI) as an alternative to the management setting unit. FIG. 6 is a diagram showing a judgment model by artificial intelligence, with the required degree of ventilation for each measurement data as teacher data. FIG. 7 is a block configuration diagram of a ventilation control system in which a wireless communication control unit is directly connected to a ventilation device. FIG. 8(a) is a diagram showing an example in which an automatic control controller is installed indoors and a wireless communication control unit 4 is connected to it, and FIG. FIG. 8(c) is a diagram showing an example in which a sensor 9 is provided independently in the room in addition to the configuration shown in FIG. 8(a). FIG. 9 is a diagram showing an installation example of an outdoor temperature detection sensor.

Hereinafter, a ventilation control system to which the present invention is applied will be described in detail with reference to the drawings.

FIG. 1 shows a block configuration of a ventilation control system 1 to which the present invention is applied. The ventilation control system 1 is a system that controls the ventilation device 2 based on control conditions, and includes an automatic control controller 3, a wireless communication control unit 4, a wireless communication access point 5, a data server 6, A management setting unit 7 is provided. This wireless communication access point 5 is connected to a data server 6 and a management setting section 7 via a public communication network 10 such as the Internet. Furthermore, the automatic control controller 3 may be configured to enable wired or wireless communication with the cooling/heating device 22 . The automatic controller 3 may be connected to the air conditioner 22 via a cloud via a wireless communication unit (not shown) to perform wired or wireless communication.

The ventilation device 2 is composed of a blower, a total heat exchanger, a damper, etc. installed in the building structure, and sends indoor air to the outdoors or sends outdoor air into the room. This ventilation device 2 is provided in a ventilation hole formed in a wall surface of a building structure and formed from the inside to the outside. This ventilator 2 operates via an operating mechanism installed inside the building structure. The ventilator 2 is usually manually controllable, and can be realized, for example, by operating an operation panel (not shown) provided on the inner wall of the room of the building structure. The ventilator 2 is also controllable via an automatic controller 3 .

The automatic control controller 3 can communicate with the ventilator 2 by wire communication, and can control ON or OFF of the ventilator 2 and control the intensity of ventilation. If the ventilation device 2 is composed of, for example, a fan or a total heat exchanger, the automatic controller 3 can control the ON/OFF of the fan or the strength of the fan through wired communication or directly. It becomes possible.

Various sensors 9 may be further connected to or incorporated in the automatic control controller 3 . The sensor 9 includes an indoor temperature detection sensor 9a that detects the indoor temperature, an indoor humidity detection sensor 9b that detects the indoor humidity, a carbon dioxide concentration detection sensor 9c that detects the carbon dioxide concentration in the room, and an outdoor temperature. It is composed of an outdoor temperature detection sensor 9d, an odor detection sensor 9e for detecting the degree of odor in the room, and an ozone concentration detection sensor 9f for detecting the concentration of ozone in the room. However, it is not essential that the sensor 9 is equipped with all of these various sensors 9a to 9f. That is, the sensor 9 may have at least the indoor temperature detection sensor 9a, the indoor humidity detection sensor 9b, and the carbon dioxide concentration detection sensor 9c, and any one or more of the sensors 9d to 9f may not be provided. . Detection of measurement data by the sensor 9 is performed sequentially at measurement intervals of, for example, 1 minute to 255 minutes. Further, the data measured by the sensor 9 may be notified to the automatic controller 3 side each time, or may be collectively notified after a certain amount of measured data is accumulated.

The automatic control controller 3 to which such various sensors 9 are connected or built in has at least the indoor temperature, indoor humidity, and carbon dioxide concentration detected by the various sensors 9, as well as the outdoor temperature, the degree of odor, and the ozone concentration. acquire one or more of Then, based on the detected various data, the ventilator 2 can be controlled through wired communication or directly. This automatic control controller 3 is directly connected to, for example, a circuit for controlling a ventilation system, a relay for turning ON/OFF the operation, and the like. , it becomes possible to apply desired ventilation control.

Further, the automatic controller 3 sequentially acquires operation information indicating the operation status from the connected air conditioners 22 . The operation information includes information on whether or not the cooling/heating device 22 is operating, as well as information on the room temperature, the air volume, the wind direction, etc. actually set in the cooling/heating device 22 . The automatic control controller 2 can control the ventilation device 2 through wired communication, wireless communication, or directly based on the acquired operational information.

The wireless communication control unit 4 may be connected to the automatic control controller 3 by wire communication, or may have its functions implemented within the automatic control controller 3 . As shown in FIG. 2, the wireless communication control unit 4 includes a wireless communication interface 41 capable of wireless communication with the wireless communication access point 5 and a wire communication interface 41 for performing wired communication with the automatic control controller 3 described above. A wired communication interface 42 and a communication control unit 43 connected to the wireless communication interface 41 and the wired communication interface 42 for controlling communication itself are provided. A microchip (not shown) for actually controlling the communication itself is mounted in the communication control unit 43, and a program for executing a sequence of communication control is written in the microchip (not shown). ROM etc. are connected.

The wireless communication access point 5 is a gateway base station installed indoors or outdoors, and is configured as a device for performing wireless communication with the wireless communication control unit 4 described above.

The data server 6 records measurement data actually detected and measured by various sensors 9, calibration data obtained by calibrating the measurement data, and various regulations such as control conditions and calibration conditions. database.

The management setting unit 7 is composed of an electronic device such as a personal computer (PC), for example, but in addition to the PC, any other electronic device such as a mobile phone, a smartphone, a tablet terminal, a wearable terminal, etc. It may be embodied. The management setting unit 7 displays measurement data, calibration data, and the like actually stored in the data server 6 on a user interface for the administrator who actually controls the ventilation control system 1 . Further, the management setting unit 7 accepts the input by the administrator and adjusts or changes the control conditions and calibration conditions stored in the data server 6 .

FIG. 3 shows the operation sequence of the ventilation control system 1 according to the present invention having the configuration described above. First, the automatic controller 3 first detects the indoor temperature, indoor humidity, and carbon dioxide concentration through the sensor 9, and if necessary, detects any one or more of the degree of odor, ozone concentration, and outdoor temperature. These detected measurement data are calibrated. As an example of this calibration, taking the carbon dioxide concentration as an example, the lowest value for the past 24 hours is obtained from the measurement data, and that value is set as the reference value of 400 ppm. Also, in this calibration, the minimum value or the average value of the measurement data acquired within one hour may be used.

The calibration method described above is an example, and any other calibration may be performed. In addition to the carbon dioxide concentration, other room temperature, room humidity, degree of odor, ozone concentration, and outdoor temperature may also be calibrated.

Note that the ventilation control system 1 to which the present invention is applied does not necessarily need to be calibrated, and the calibration itself may be omitted.

The calibrated or uncalibrated raw measurement data are then evaluated under controlled conditions. In this determination, preset ventilation control conditions are referred to, and the degree of necessity of ventilator control is determined based on measurement data.

Here, as an example of ventilation control conditions, for example, if the carbon dioxide concentration is 2000 ppm or more, the ventilation device 2 is turned on, if it is 2000 ppm or more, the ventilation degree of the ventilation device 2 is increased, if it is 1500 ppm or less For example, the ventilator 2 may be turned off. Further, if the time-series rate of increase in carbon dioxide concentration exceeds 1000 ppm/min, the time-series temperature increase rate of the room temperature that maximizes the ventilation degree of the ventilation device 2 is 0.3 ° C./min, If the rate of increase in the degree of odor exceeds 30/minute, the ventilator 2 may be immediately turned on, or the like. Further, if the ozone concentration is 0.1 ppm or less, the indoor humidity is 50% or more, and the outdoor temperature is 22° C. or less, the degree of ventilation of the ventilation device 2 may be relaxed. Furthermore, the indoor temperature, indoor humidity, and carbon dioxide concentration are detected in chronological order, and the degree of ventilation to be adjusted by the ventilation device 2 is set based on the frequency or time exceeding the reference value within 24 hours. Alternatively, determination may be made based on whether or not the average value or maximum value of the 24-hour measurement data exceeds a reference value. In such a case, the highest average value may be selected from among the indoor temperature, indoor humidity, and carbon dioxide concentration, and the average value may be compared with the reference value. may be weighted and compared with a reference value.

That is, the control conditions are defined as rules or regulations in which not only one type of measurement data, but also two or more types are combined, and specific contents of control are associated with these data. This control condition may be determined by combining time-series elements or other elements as described above.

It is determined whether or not the above-described measurement data is suitable for such control conditions. For example, if the control condition is "turn off the ventilation device 2 when the indoor temperature is 18°C or lower and the indoor humidity is 40% or lower", the detected indoor temperature is 18°C or lower and the indoor humidity is 40%. % or less. As a result, if the control condition is met, a control command is issued to execute specific control of the ventilator 2 linked to the control condition. On the other hand, if the control conditions are not met, no particular new control is applied to the ventilator 2 . In the above example, if the detected room temperature is 18° C. or less and the room humidity is 40% or less, a control command to turn off the ventilator 2 is issued.

FIG. 4 shows an example of the total result of measurement data displayed on the user interface of the management setting section 7. As shown in FIG. Room temperature, room humidity, and carbon dioxide concentration are detected in chronological order, and the average values for 24 hours are shown in a graph at intervals of one hour. The number on the far right of this graph shows the average value for 24 hours.

In this user interface example, if even one of the average values of room temperature, room humidity, and carbon dioxide concentration exceeds the threshold, it is determined to be abnormal. In such a case, the ventilator 2 is turned on based on the control conditions, or control is performed to increase the degree of ventilation of the ventilator 2 .

Control commands generated by the automatic control controller 3 are sent to the ventilation device 2 either through wired communication or directly. The ventilator 2 turns the ventilation ON or OFF, or adjusts the strength of the ventilation, based on the received specific control command.

In addition, the above-described autonomous control is performed via the automatic control controller 3, and in parallel with this, the wireless communication control unit 4 always takes in measurement data through wired communication. The measurement data to be captured by the wireless communication control unit 4 may be raw data that has not been calibrated, data that has been calibrated, or raw data and calibrated data. Data can be both.

The radio communication control unit 4 transmits the captured measurement data to the data server 6 via the public communication network 10 through radio communication. The data server 6 sequentially stores this measurement data. The data server 6 is sequentially sent measurement data from the wireless communication control units 4 provided at various other locations, and sequentially stores the data. As a result, the data server 6 collects measurement data detected by the sensors 9 at various locations via the wireless communication control unit 4 .

The data server 6 can be accessed from the management setting unit 7 side via the public communication network 10 . The management setting unit 7 statistically organizes and tabulates the measurement data recorded in the data server 6 as necessary, and makes it visible on the user interface. Statistical arrangement and tabulation of the measurement data may be performed for each radio communication control unit 4 or may be tabulated for a plurality of radio communication control units 4 collectively.

In the following example, a case will be described in which statistical arrangement and tabulation of measurement data are performed in units of individual wireless communication control units 4 .

In such a case, the management setting section 7 displays the totalization result of the measurement data on the user interface. The display screen on this user interface may display each measured value in chronological order as shown in FIG. 4, for example. When the administrator visually recognizes the total result of the measurement data and determines that there is an abnormality, he/she can manually issue an instruction to change the control conditions. In such a case, the administrator will have to determine whether the control conditions should be left unchanged or whether the control conditions themselves should be changed based on their own experience. The result of this administrator's determination is reflected in the control conditions. As a result of the determination, the administrator may decide by his/her own judgment what kind of control conditions should be set, or may automatically decide on the management setting section 7 side. In such a case, a template to which control conditions are linked may be formed in advance according to the frequency of determination to change the control conditions, and the control conditions may be specified based on the template.

Further, the control conditions may be changed automatically on the management setting section 7 side. As a method of changing the control conditions, for example, for each time-series measurement data such as indoor temperature, indoor humidity, carbon dioxide concentration, etc., indoor comfort, energy saving, failure prevention for the frequency or time exceeding the standard value A template is prepared in which one or more determination results of the presence/absence, heat stroke risk, and infectious disease risk are linked. Then, on the management setting unit 7 side, the frequency or time when the newly acquired measurement data exceeds the reference value is specified, and the indoor comfort, energy saving, and malfunction linked to the specified frequency or time are determined. Any one or more of the presence or absence of, heat stroke risk, and infectious disease risk is extracted. As a result, the management setting unit 7 can automatically determine one or more of indoor comfort, energy saving, failure, heat stroke risk, and infectious disease risk each time from the measurement data. Regarding the presence/absence of a failure, if the numerical value greatly deviates from the range of the control conditions, it can be determined that there is a possibility that a failure has occurred.

In addition, a template is prepared in advance in which one or more of indoor comfort, energy saving, failure, heatstroke risk, and infectious disease risk are associated with specific control conditions. As an example of this template, if indoor comfort is second from the top on a five-point scale, energy saving is the first from the bottom on a five-point scale, and heatstroke risk is third from the top on a five-step scale, If the temperature rise rate of the room temperature in time series is 0.3° C./min and the rate of increase of the degree of odor exceeds 30/min, the ventilation device 2 is immediately turned on." For example, the "time-series temperature rise rate of indoor temperature" is lowered from 0.3° C./minute to 0.2° C./minute.

It is also assumed that a control condition has been set in advance to strengthen the ventilation by the ventilation device 2 when the concentration of carbon dioxide exceeds 1000 ppm, for example. However, even if the actual carbon dioxide concentration is measured chronologically, it never reaches 700 ppm in 24 hours and exceeds 600 ppm only a few times. In such a case, the carbon dioxide concentration in the room is stable at a low level, and the people inside are accustomed to the environment, so if the concentration exceeds 900 ppm, some may feel uncomfortable. In such a case, if the carbon dioxide concentration exceeds 900 ppm, the control conditions can be changed to strengthen the ventilation by the ventilation device 2 .

In addition, as a method of changing the control conditions, the contents of the change in the control conditions are directly linked to each measurement data such as room temperature, room humidity, carbon dioxide concentration, etc., and new measurement data is detected. In some cases, this may be read out to directly derive the control conditions to be changed.

After deriving the control conditions to be changed on the management setting unit 7 side in this manner, the control conditions recorded in the data server 6 are updated via the public communication network 10 . This update of the control conditions may be performed for each wireless communication control unit 4 , or a common control condition may be updated for a plurality of wireless communication control units 4 .

The wireless communication control unit 4 acquires the control conditions updated on the data server 6 via the public communication network 10 and transmits them to the automatic control controller 3 . The automatic control controller 3 can make the determination described above based on this updated control condition.

In this manner, the present invention allows control conditions to be set remotely via wireless communication. Whether the current control conditions are suitable for each measurement data such as indoor humidity and carbon dioxide concentration from the viewpoint of any one or more of indoor comfort, energy saving, failure, heatstroke risk, infectious disease risk is determined on the side of the management setting unit 7, and automatically determined as necessary without intervention of the administrator's determination. As a result, if the control conditions are not suitable for the current indoor environment, the control conditions are immediately changed. As a result, instead of uniformly controlling ventilation under predetermined control conditions, ventilation can be controlled in real time under control conditions suitable for the environment, making the indoor environment more comfortable. be able to.

Normally, the function of optimizing the control conditions each time is not implemented in the automatic control controller 3 . Therefore, it is possible to connect the wireless communication control unit 4 to the automatic control controller 3 by wire as a retrofit, and to remotely set the optimum control conditions in real time from the wireless communication control unit 4 via the management setting unit 7 described above. It becomes possible.

Note that setting, changing, and updating the control conditions are limited to turning on the ventilation device 2 or increasing the degree of ventilation of the ventilation device 2 in order to seek more comfort in the room or reduce the risk of heat stroke. not to be Control for reducing power consumption by suspending the extra operation of the ventilation device 2 or lowering the degree of ventilation when the indoor comfort has already increased and the risk of heatstroke has already been proposed. Conditions may be set, changed, and updated.

For example, in the case of the carbon dioxide concentration example described above, if the control condition is set in advance to strengthen ventilation by the ventilation device 2 when it exceeds 1000 ppm, even if the carbon dioxide concentration exceeds 1000 ppm, the temperature and humidity is low, the upper limit of the control condition may be changed from 1000 ppm to a higher one in consideration of both comfort and energy saving.

It should be noted that the present invention is not limited to the case where the control conditions are set, changed, and updated by the management setting unit 7 based on the method described above. For example, as shown in FIG. 5, instead of the management setting unit 7, artificial intelligence (AI) may be used for automatic determination.

In FIG. 5, the same constituent elements and members as those in FIG. 2 described above are referred to, and the description thereof will be omitted. In the example of FIG. 5, artificial intelligence is implemented in the data server 6 instead of actually using the management setting unit 7 . That is, the data stored in this data server 6 is learned through this artificial intelligence.

FIG. 6 shows a judgment model by artificial intelligence that uses the necessary degree of ventilation as teacher data for each measurement data (indoor temperature, indoor humidity, carbon dioxide concentration, outdoor temperature, odor degree, ozone concentration). The degree of necessity of ventilation may be specifically indicated by any one or more of the above-described indoor comfort, energy saving, failure, heatstroke risk, possibility of infectious disease risk, and the like. The neural network in the center has three inputs: indoor temperature, indoor humidity, and carbon dioxide concentration, and if necessary, one or more of outdoor temperature, odor level, and ozone concentration, and the output is the need for ventilation. degree.

The learning data may be a learning data set obtained by learning each measurement data acquired previously and the ventilation necessity level data specifically determined by the administrator at that time.

Using such artificial intelligence, when measurement data is input, the necessary degree of ventilation corresponding to this is output. If such a necessary degree of ventilation is output, it is possible to obtain the control condition to be changed that is associated with it in the same manner as described above.

As for this output, instead of the degree of necessity of ventilation, the control conditions to be changed may be learned from the direct measurement data. By using such artificial intelligence, it becomes possible to output control conditions to be changed according to input of measurement data.

The ventilation control system 1 to which the present invention is applied is not limited to the embodiment described above. If the automatic controller 3 cannot be installed indoors, the wireless communication control unit 4 is directly connected to the ventilator 2 as shown in FIG. The sensor 9 is provided independently of the automatic control controller 3 . This sensor 9 can send measurement data to the wireless communication control unit 4 via the wireless communication access point 5 and to the management setting section 7 via the public communication network 10 .

In this embodiment, the determination of the detected measured data against the control conditions may be performed by the management setting unit 7, or may be performed by the wireless communication control unit 4 or the automatic control controller 3. The automatic control controller 3 directly controls the ventilator 2 itself. In such a case, similarly, when setting conditions to be changed are sent from the public communication network 10, the wireless communication control unit 4 judges the measurement data and controls the ventilator 2 based on this.

FIG. 8(a) shows an example in which the automatic controller 3 is installed indoors and the wireless communication control unit 4 is connected thereto, as shown in FIG. In this form, since the sensor 9 is built in the automatic controller 3 itself, even if the wireless communication is interrupted, it is difficult to change the control conditions each time, but the control operation can be continued without problems. On the other hand, the embodiment of FIG. 8B shows an example in which the automatic controller 3 cannot be installed indoors as shown in FIG. measurement data from is no longer sent to the wireless communication control unit 4. Even in such a case, ventilation itself can be continued, although it is not possible to detect the environment in the room and perform optimum control accordingly, and although it is difficult to change the control conditions each time. Moreover, in the form of FIG.8(b), since the automatic control controller 3 is not used, there exists an advantage which can reduce an installation cost and an electricity bill.

FIG. 8(c) is an example in which a sensor 9 is provided independently in the room in addition to the configuration of FIG. 8(a). In such a case, normally without using the automatic control controller 3, the measurement data is obtained by wireless communication via the independently provided sensor 9 to save the electricity bill, but if the wireless communication is interrupted In this case, although it is difficult to change the control condition each time, the control operation can be continued without any problem, as in FIG. 8(a).

As shown in FIG. 9, the outdoor temperature detection sensor 9d may detect the temperature of the suction portion of the ventilator 2 for drawing outside air into the room. The ventilation device 2 is formed in the wall surface of the building structure and is provided in a ventilation hole formed from the room to the outside. 9d is attached. As a result, the outdoor temperature detection sensor 9d can detect the outdoor temperature with high accuracy without mixing it with the indoor temperature.

In the above-described embodiment, the automatic control controller 3 and the wireless communication control unit 4 are installed separately and have the above-described roles. However, the present invention is not limited to this. do not have. The automatic control controller 3 and the wireless communication control unit 4 may be configured as a unit integrated with each other, and the unit may perform each function of the automatic control controller 3 and the wireless communication control unit 4 described above. is of course.

1 ventilation control system 2 ventilation device 3 automatic control controller 4 wireless communication control unit 5 wireless communication access point 6 data server 7 management setting unit 9 sensor 9a indoor temperature detection sensor 9b indoor humidity detection sensor 9c carbon dioxide concentration detection sensor 9d outdoor temperature detection Sensor 9e Odor detection sensor 9f Ozone concentration detection sensor 10 Public communication network 22 Air conditioner 41 Wireless communication interface 42 Wired communication interface 43 Communication control unit

Claims (8)

In the ventilation control system for controlling only the ventilation equipment that ventilates the room,
Room temperature detection means for detecting room temperature;
indoor humidity detection means for detecting indoor humidity;
Carbon dioxide concentration detection means for detecting the carbon dioxide concentration in the room;
Based on the indoor temperature detected by the indoor temperature detection means, the indoor humidity detected by the indoor humidity detection means, and the carbon dioxide concentration detected by the carbon dioxide concentration detection means, with reference to the ventilation control conditions. a determination means for determining the degree of necessity of control of the ventilation device;
a control means for controlling the ventilator based on the degree of necessity determined by the determination means;
setting means for remotely setting the control conditions via wireless communication;
The setting means uses a judgment model in which infectious disease risk for the indoor temperature, the indoor humidity, and the carbon dioxide concentration is used as teaching data, and the indoor temperature detected by the indoor temperature detecting means and the indoor humidity detecting means. and the carbon dioxide concentration detected by the carbon dioxide concentration detection means are acquired via wireless communication, and the newly acquired indoor temperature, indoor humidity, and carbon dioxide concentration are input. Set the control conditions according to the infectious disease risk output from the judgment model when
A ventilation control system characterized by: In addition to the indoor temperature, the indoor humidity, and the carbon dioxide concentration, the setting means uses a determination model in which the infectious disease risk for any of the indoor ozone concentration and the degree of odor in the room is used as teaching data, and a new determination model is used. In addition to the indoor temperature, indoor humidity, and carbon dioxide concentration detected in the above, the infectious disease risk output from the judgment model when any of the newly detected ozone concentration and the degree of odor is input 2. The ventilation control system according to claim 1, wherein the control condition is set according to . Any one or more of the room temperature detected by the room temperature detection means, the room humidity detected by the room humidity detection means, and the carbon dioxide concentration detected by the carbon dioxide concentration detection means with reference to the calibration conditions Further comprising calibration means for performing calibration for
3. The ventilation control system according to claim 1, wherein said setting means remotely sets said calibration conditions via wireless communication. Further comprising outdoor temperature detection means for detecting outdoor temperature,
Claims 1 to 3, wherein the determination means refers to the ventilation control conditions and further determines the degree of necessity of control of the ventilation system based on the outdoor temperature detected by the outdoor temperature detection means. 1. The ventilation control system according to claim 1. 5. The setting means further acquires the outdoor temperature detected by the outdoor temperature detection means via wireless communication, and sets the control condition based on the acquired indoor temperature. Ventilation control system as described. 6. The ventilation control system according to claim 5, wherein the outdoor temperature detection means detects the temperature of an intake portion of the ventilation device for sucking outside air into the room. The setting means creates a determination model using the indoor temperature, the indoor humidity, the carbon dioxide concentration, the outdoor temperature, the indoor ozone concentration, and the degree of odor in the room as training data for infectious disease risk. In addition to the newly detected indoor temperature, indoor humidity, carbon dioxide concentration, and outdoor temperature, newly detected ozone concentration or degree of odor is input. 5. The ventilation control system according to claim 4, wherein the control condition is set according to the infectious disease risk outputted from. The ventilation control according to any one of claims 1 to 3, wherein the setting means further acquires operation information of a cooling and heating device, and further sets the control condition based on the acquired operation information. system.

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