JP2023145162A - ventilation control system - Google Patents

Abstract

To provide an optimal indoor environment by resetting a control condition of a ventilation device in real time to an optimum control condition according to an indoor environment, or by making it possible to change the control condition each time.SOLUTION: A ventilation control method for controlling a ventilation device 2 to a room, comprises a detection step of detecting an indoor temperature, an indoor humidity, and an indoor carbon dioxide concentration; a determination step of determining a degree of necessity of controlling the ventilation device 2 based on the indoor temperature, the indoor humidity and the carbon dioxide concentration detected in the detection step with reference to a ventilation control condition; and a control step for controlling the ventilation device 2 based on the degree of necessity determined in the determination step, where the ventilation control condition is set remotely via wireless communication.SELECTED DRAWING: Figure 3

Description

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

Indoor comfort changes depending on temperature, humidity, and carbon dioxide concentration. In addition to this, comfort also varies depending on the degree of odor and ozone concentration. In order to achieve such indoor comfort, an air conditioner is usually used to appropriately control temperature and humidity. In addition to the above-mentioned temperature and humidity, carbon dioxide concentration, odor, and ozone concentration are appropriately controlled through a ventilation device using a ventilation fan, a total heat exchanger, a damper, etc.

In seeking such indoor comfort, it is cumbersome for humans to manually control air conditioners and ventilation equipment every time they feel discomfort in the indoor space, and it is difficult for people with disabilities to manually control the air conditioner and ventilation equipment. Air conditioners have traditionally been equipped with automatic control functions in consideration of the needs of the elderly and the elderly. The automatic control function installed in this air conditioner detects the indoor temperature and humidity using a sensor, and controls the air conditioner so that the temperature and humidity approach the preset temperature and humidity.

By the way, although such an automatic control function has been installed in air conditioners for some time, it has not been installed in ventilation systems. The reason for this is that since the air conditioner itself is installed as an afterthought to a building structure, it can be easily implemented by providing such an automatic control function in the air conditioner itself. On the other hand, ventilation systems are designed from the beginning to provide vents that penetrate from the indoors to the outside of the building structure, and install a total heat exchanger such as a ventilation fan or damper there.The ventilation system itself is installed inside the building structure. It operates via an operating mechanism installed in the For this reason, it is difficult to implement automatic control functions as retrofits like air conditioners, and in the end ventilation systems have to be controlled manually.

On the other hand, if this ventilation device continues to ventilate even when the level of carbon dioxide and odor has already been reduced through ventilation, the electricity bill associated with ventilation will increase, and it is also difficult to save energy. It is also undesirable from this point of view. If it is relatively cool outside in the summer, the room may be cooled simply by turning off the air conditioner and ventilating the room through a ventilation system. In such a case, it is desirable to be able to optimize indoor temperature and ventilate the room at the same time using only a ventilation device, and to save energy by turning off the air conditioner.

In order to achieve complete automatic control of turning on or off the ventilation system or controlling the ventilation amount, it is necessary to control the indoor environment (indoor temperature, indoor humidity, indoor carbon dioxide concentration and odor level, and even indoor ozone concentration, etc.), it is necessary to achieve this with high precision based on a complex algorithm. To this end, it is necessary to provide an optimal indoor environment by resetting the optimal control conditions in real time according to the indoor environment, or by making it possible to change the control conditions each time.

However, the current state of the art is that no technology has been devised for externally resetting or changing the control conditions in real time.

Japanese Patent Application Publication No. 5-196269

The present invention has been devised in view of the above-mentioned problems, and its purpose is to provide a ventilation control system for controlling a ventilation device that performs indoor ventilation by adjusting the control conditions of the ventilation device. The present invention relates to a ventilation control system that can provide an optimal indoor environment by resetting optimal control conditions in real time according to the indoor environment, or by making it possible to change control conditions each time.

A ventilation control system according to a first aspect of the present invention is a ventilation control system for controlling a ventilation device that performs indoor ventilation, and includes: an indoor temperature detection means for detecting indoor temperature; an indoor humidity detection means for detecting indoor humidity; a carbon dioxide concentration detection means for detecting the indoor carbon dioxide concentration; an indoor temperature detected by the indoor temperature detection means; an indoor humidity detected by the indoor humidity detection means; determining means for determining the degree of necessity of controlling the ventilation device based on the carbon dioxide concentration detected by the carbon dioxide concentration detection means; and controlling the ventilation device based on the degree of necessity determined by the determination means. The present invention is characterized by comprising a control means and a setting means for remotely setting the control conditions via wireless communication.

In the ventilation control system according to a second aspect of the invention, in the first aspect, the setting means is configured to adjust 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. The present invention is characterized in that the carbon dioxide concentration detected by the detection means is acquired via wireless communication, and the control conditions are set based on the acquired indoor temperature, indoor humidity, and carbon dioxide concentration.

In the ventilation control system according to a third aspect of the invention, in the second aspect, the setting means uses a determination model using the degree of necessity for the indoor temperature, the indoor humidity, and the carbon dioxide concentration as training data, and newly detects the The control condition is set in accordance with the degree of necessity output from the determination model when the indoor temperature, the indoor humidity, and the carbon dioxide concentration are input.

In the ventilation control system according to a fourth aspect of the invention, in the second aspect, the setting means uses a determination model using the control conditions for the indoor temperature, the indoor humidity, and the carbon dioxide concentration as training data, and newly detects the The present invention is characterized in that control conditions are set to be output from the determination model when the indoor temperature, the indoor humidity, and the carbon dioxide concentration are input.

A ventilation control system according to a fifth aspect of the present invention is a ventilation control system according to any one of the first to fourth aspects, wherein the indoor temperature detected by the indoor temperature detecting means and the indoor humidity detected by the indoor humidity detecting means are detected by the indoor temperature detecting means with reference to the calibration conditions. The apparatus further includes a calibration means for calibrating one or more of indoor humidity and the carbon dioxide concentration detected by the carbon dioxide concentration detection means, and the setting means remotely sets the calibration conditions via wireless communication. It is characterized by

In the ventilation control system according to a sixth aspect of the invention, in the fifth aspect, the setting means includes an indoor temperature detected by the indoor temperature detection means, an indoor humidity detected by the indoor humidity detection means, and the carbon dioxide concentration. The present invention is characterized in that the carbon dioxide concentration detected by the detection means is acquired via wireless communication, and the calibration conditions are set based on the acquired indoor temperature, indoor humidity, and carbon dioxide concentration.

The ventilation control system according to a seventh aspect of the invention, in any one of the first to sixth aspects, further comprises an outdoor temperature detection means for detecting an outdoor temperature, and the determination means refers to ventilation control conditions, Furthermore, the degree of necessity of controlling the ventilation system is determined based on the outdoor temperature detected by the outdoor temperature detection means.

In the ventilation control system according to an eighth aspect, in the seventh aspect, the setting means further acquires the outdoor temperature detected by the outdoor temperature detecting means via wireless communication, and further based on the acquired indoor temperature. The method is characterized in that the control conditions are set based on the above.

A ventilation control system according to a ninth aspect of the invention is characterized in that, in the eighth aspect, the outdoor temperature detection means detects the temperature of a suction portion of the ventilation device for sucking outside air into the room.

In the ventilation control system according to a tenth invention, in the eighth invention or the ninth invention, the setting means makes the determination using the degree of necessity for the indoor temperature, the indoor humidity, the carbon dioxide concentration, and the outdoor temperature as training data. Using the model, when the newly detected indoor temperature, indoor humidity, carbon dioxide concentration, and outdoor temperature are input, the control conditions are set according to the degree of necessity output from the determination model. It is characterized by

In the ventilation control system according to an eleventh invention, in any one of the first to sixth inventions, the setting means further acquires operation information of the air-conditioning device, and further sets the control conditions based on the acquired operation information. It is characterized by setting.

In the ventilation control system according to a twelfth aspect, in the eleventh aspect, the setting means uses a determination model using the indoor temperature, the indoor humidity, the carbon dioxide concentration, and the degree of necessity for the operation information as training data. , the control condition is set according to the degree of necessity output from the determination model when the newly detected indoor temperature, the indoor humidity, the carbon dioxide concentration, and the operation information are input. do.

A ventilation control method according to a thirteenth aspect of the present invention is a ventilation control method for controlling a ventilation device indoors, which includes a detection step of detecting indoor temperature, indoor humidity, and carbon dioxide concentration in the room, and controlling ventilation control conditions. a determination step of determining the degree of necessity of controlling the ventilation device based on the indoor temperature, indoor humidity, and carbon dioxide concentration detected in the detection step, and the degree of necessity determined in the determination step; and a control step of controlling the ventilation device, and the ventilation control conditions are set remotely via wireless communication.

In the present invention having the above-described configuration, control conditions can be set remotely via wireless communication. Are the current control conditions appropriate for each measurement data such as indoor humidity and carbon dioxide concentration from one or more of the following perspectives: indoor comfort, energy saving, presence of malfunction, risk of heat stroke, risk of infectious disease? is determined by the management setting section, and automatically determined as necessary without the intervention of the administrator. As a result, if the control conditions are not appropriate for the current indoor environment, the control conditions are immediately changed. This makes it possible to perform ventilation control in real time under control conditions suitable for the environment, instead of uniformly controlling ventilation under predetermined control conditions, making the indoor environment more comfortable. be able to.

FIG. 1 is a block diagram of a ventilation control system to which the present invention is applied. FIG. 2 is a diagram for explaining the configuration of the wireless 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 illustrating an example of a total result of measurement data displayed on the user interface of the automatic controller. FIG. 5 is a sequence diagram for automatically determining using artificial intelligence (AI) as an alternative to the management setting unit. FIG. 6 is a diagram showing a judgment model using artificial intelligence, in which the degree of necessity of ventilation for each measurement data is used as training data. FIG. 7 is a block 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 further connected to it, and FIG. 8(b) is a diagram showing an example in which an automatic control controller is installed indoors. 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 illustrating an installation example of an outdoor temperature detection sensor.

Hereinafter, a ventilation control system to which the present invention is applied will be explained 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, The management setting section 7 is also 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 including the Internet. Further, the automatic controller 3 may be configured to enable wired or wireless communication with the air-conditioning device 22. The automatic controller 3 may be connected to the air-conditioning device 22 via a cloud via a wireless communication unit (not shown), and may perform wired or wireless communication.

The ventilation system 2 is comprised of a blower, a total heat exchanger, a damper, etc. installed in a building structure, and sends indoor air to the outdoors or sends outdoor air into the room. This ventilation device 2 is formed in a wall surface of a building structure, and is provided in a ventilation hole formed from indoors to outdoors. This ventilation system 2 operates via an operating mechanism installed inside the building structure. The ventilation system 2 is normally controllable by manual operation, 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. In addition to this, the ventilation system 2 can be controlled via an automatic controller 3.

The automatic controller 3 is capable of communicating with the ventilation device 2 via wired communication, and is capable of controlling whether the ventilation device 2 is turned on or off and controlling the strength of the ventilation level. If the ventilation system 2 is composed of, for example, a blower or a total heat exchanger, the automatic controller 3 can control whether the ventilation is turned on or off, or the strength of the ventilation through wired communication or directly. It becomes possible.

This automatic controller 3 may further be connected to various sensors 9 or may be built-in. This sensor 9 includes an indoor temperature detection sensor 9a that detects indoor temperature, an indoor humidity detection sensor 9b that detects indoor humidity, a carbon dioxide concentration detection sensor 9c that detects indoor carbon dioxide concentration, and outdoor temperature. It is composed of an outdoor temperature detection sensor 9d, an odor detection sensor 9e that detects the degree of indoor odor, and an ozone concentration detection sensor 9f that detects the indoor ozone concentration. However, it is not essential that this sensor 9 includes all of these various sensors 9a to 9f. That is, the sensor 9 only needs to have at least an indoor temperature detection sensor 9a, an indoor humidity detection sensor 9b, and a 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 this 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 notified all at once after a certain amount of measurement data has been accumulated.

The automatic controller 3 to which such various sensors 9 are connected or built-in is configured to monitor at least the indoor temperature, indoor humidity, and carbon dioxide concentration detected by the various sensors 9, as well as the outdoor temperature, degree of odor, and ozone concentration. Obtain one or more of the following. Based on the various detected data, the ventilation device 2 can be controlled directly or through wired communication. The automatic controller 3 is directly connected to, for example, a circuit for controlling a ventilation system, a relay for turning ON/OFF the operation, etc., and acts on the operating mechanism installed inside the building structure. , it becomes possible to perform the desired ventilation control.

Further, the automatic controller 3 sequentially acquires operation information indicating the operating status from the connected air-conditioning device 22. The operation information includes information regarding the indoor temperature, air volume, wind direction, etc. that are actually set in the air conditioner 22, in addition to whether or not the air conditioner 22 is operating. The automatic controller 2 can control the ventilation apparatus 2 through wired communication or wireless communication, or directly, based on the acquired operation information.

The wireless communication control unit 4 may be connected to the automatic controller 3 through wired communication, or its functions may be implemented within the automatic 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 wired communication interface 41 capable of wireless communication with the automatic control controller 3 described above. It includes a wired communication interface 42 and a communication control section 43 that is connected to the wireless communication interface 41 and the wired communication interface 42 and controls the communication itself. This communication control unit 43 is equipped with a microchip (not shown) for actually controlling the communication itself, and a program for executing the communication control sequence is written on the microchip (not shown). ROM etc. are connected.

The wireless communication access point 5 is a gateway base station provided 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 and calibration data obtained as a result of calibrating the measurement data, as well as various regulations and rules such as control conditions and calibration conditions. It is a database that

The management setting unit 7 is composed of an electronic device such as a personal computer (PC), but in addition to the PC, it can also be composed of any other electronic device such as a mobile phone, a smartphone, a tablet terminal, a wearable terminal, etc. It may be something that is materialized. The management setting unit 7 displays measurement data, calibration data, etc. stored in the actual data server 6 on a user interface to the administrator who actually controls the ventilation control system 1. The management setting unit 7 also receives input from the administrator and adjusts or changes the control conditions and calibration conditions stored in the data server 6.

FIG. 3 shows an operation sequence of the ventilation control system 1 according to the present invention having the above-described configuration. 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. Calibration is performed on these detected measurement data. As an example of this calibration, when taking carbon dioxide concentration as an example, the lowest value for the past 24 hours is acquired from the measured data, and that value is set as the reference value of 400 ppm. Further, in this calibration, the minimum value or the average value of measurement data acquired within one hour may be used.

The above-described calibration method is just an example, and any other calibration may be performed. Further, not only the carbon dioxide concentration but also other indoor temperature, indoor humidity, degree of odor, ozone concentration, and outdoor temperature may be calibrated.

In addition, in the ventilation control system 1 to which the present invention is applied, it is not essential to perform calibration, and the calibration itself may be omitted.

The calibrated measurement data, or the raw measurement data without calibration, is then evaluated under controlled conditions. In this determination, preset ventilation control conditions are referred to and the degree of necessity of controlling the ventilation device is determined based on the measured data.

Examples of ventilation control conditions include, for example, turning on the ventilation device 2 if the carbon dioxide concentration is 2000 ppm or more, or increasing the ventilation level of the ventilation device 2 if the carbon dioxide concentration is 2000 ppm or more, or increasing the ventilation level of the ventilation device 2 if the carbon dioxide concentration is 1500 ppm or less. For example, the ventilation device 2 may be turned off. Furthermore, if the time-series carbon dioxide concentration increase rate exceeds 1000 ppm/min, the time-series indoor temperature increase rate 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/min, the ventilation device 2 may be turned on immediately, or the control may be performed by detecting measurement data in chronological order. 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 a time series, and the degree of ventilation to be adjusted for the ventilation device 2 is set based on the frequency or time of exceeding the standard value within 24 hours. Alternatively, the determination may be made based on whether the average value or maximum value of the 24-hour measurement data exceeds a reference value. In such a case, the one with the highest average value among indoor temperature, indoor humidity, and carbon dioxide concentration may be selected and the average value may be compared with a reference value, or the desired value may be selected among these three factors. It is also possible to perform weighting and compare this with a reference value.

That is, this control condition is defined as a rule or regulation that combines not only one type of measurement data but two or more types of measurement data and links these with specific contents of control. This control condition may be determined by combining time-series elements or other elements as described above.

It is determined whether the above-mentioned measurement data is suitable for such control conditions. For example, if the control condition is "If the indoor temperature is 18°C or lower and the indoor humidity is 40% or lower, turn off the ventilation system 2," then the detected indoor temperature is 18°C or lower and the indoor humidity is 40% or lower. % or less. As a result, if the control condition is met, a control command is issued to execute control to the specific ventilation device 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 ventilation device 2. In the above example, if the detected indoor temperature is 18° C. or lower and the indoor humidity is 40% or lower, a control command is issued to turn off the ventilation device 2.

FIG. 4 shows an example of the measurement data aggregation results displayed on the user interface of the management setting unit 7. Indoor temperature, indoor humidity, and carbon dioxide concentration are detected in time series, and the average values are shown in a graph every hour over a 24-hour period. The numerical value at the far right of this graph shows the average value over 24 hours.

In this user interface example, if any one of the average values of indoor temperature, indoor humidity, and carbon dioxide concentration exceeds a threshold value, it is determined that there is an abnormality. In such a case, the ventilation device 2 is turned on or controlled to increase the degree of ventilation of the ventilation device 2 based on the control conditions.

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

Further, the above-mentioned 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 in this wireless communication control unit 4 may be raw data that has not been calibrated, data that has been calibrated, or raw data that has been calibrated. It may be both data and data.

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

This data server 6 can be accessed from the management setting section 7 side via the public communication network 10. The management setting unit 7 statistically organizes and totals the measurement data recorded in the data server 6 as necessary, and can visually check the data on the user interface. This statistical arrangement and aggregation of the measurement data may be performed for each individual wireless communication control unit 4, or may be aggregated for a plurality of wireless communication control units 4 at once.

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

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

Further, this change in control conditions may be automatically performed on the management setting section 7 side. As a method for changing control conditions, for example, for each time-series measurement data such as indoor temperature, indoor humidity, carbon dioxide concentration, etc., check the indoor comfort, energy saving, and failure prevention for the frequency or time when the standard value is exceeded. A template is prepared in which the determination results of one or more of presence/absence, heat stroke risk, and infectious disease risk are linked. Then, the management setting unit 7 side actually identifies the frequency or time when the newly acquired measurement data exceeds the standard value, and the indoor comfort, energy saving, and malfunction associated with the identified frequency or time. Extract one or more of the following: the presence or absence of heat stroke, the risk of heatstroke, and the risk of infectious disease. As a result, the management setting unit 7 can automatically determine one or more of the following: indoor comfort, energy saving, presence of failure, heat stroke risk, and infectious disease risk from the measured data each time. Regarding the presence or absence of a failure, it can be determined that a failure may have occurred if the value is significantly outside the range of the control conditions.

In addition, a template is prepared in advance in which one or more of indoor comfort, energy saving, malfunction, heat stroke risk, and infectious disease risk are associated with specific control conditions. An example of this template is if indoor comfort is ranked second from the top on a five-point scale, energy saving is ranked first from the bottom on a five-point scale, and heat stroke risk is ranked third from the top on a five-stage scale. Under the control conditions that if the time-series indoor temperature increase rate is 0.3°C/min and the odor level increase rate exceeds 30/min, the ventilation device 2 will be turned on immediately. Changes may be made, such as lowering the "time-series rate of increase in indoor temperature" from 0.3°C/min to 0.2°C/min.

Further, it is assumed that, for example, control conditions have been set in advance to strengthen ventilation by the ventilation device 2 when the carbon dioxide concentration exceeds 1000 ppm. However, even when measured over time, the actual carbon dioxide concentration never exceeds 700 ppm in 24 hours, and only exceeds 600 ppm several times. In such a case, the indoor carbon dioxide concentration is stable at a low level, and the people inside are accustomed to that environment, so if the carbon dioxide concentration exceeds 900 ppm, some people may feel uncomfortable. In such a case, if the carbon dioxide concentration exceeds 900 ppm, the control conditions may be changed to strengthen ventilation by the ventilation device 2.

In addition, as a method for changing the control conditions, changes in the control conditions are directly linked to each measurement data such as indoor temperature, indoor 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 in this way, the management setting unit 7 side updates the control conditions recorded in the data server 6 via the public communication network 10. The control conditions may be updated for each radio communication control unit 4, or common control conditions may be updated for a plurality of radio 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 controller 3 can make the above-mentioned determination based on the updated control conditions.

In this way, the present invention allows control conditions to be set remotely via wireless communication. Are the current control conditions appropriate for each measurement data such as indoor humidity and carbon dioxide concentration from one or more of the following perspectives: indoor comfort, energy saving, presence of malfunction, risk of heat stroke, risk of infectious disease? is determined on the management setting section 7 side, and is automatically determined as necessary without the intervention of the administrator's judgment. As a result, if the control conditions are not appropriate for the current indoor environment, the control conditions are immediately changed. This makes it possible to perform ventilation control in real time under control conditions suitable for the environment, instead of uniformly controlling ventilation under predetermined control conditions, making the indoor environment more comfortable. be able to.

Normally, a function to optimize the control conditions each time is not implemented in the automatic control controller 3. For this reason, it is possible to connect this wireless communication control unit 4 to the automatic control controller 3 by wire as a retrofit, and to remotely set optimal control conditions from this wireless communication control unit 4 via the above-mentioned management setting section 7 in real time. It becomes possible.

Note that setting, changing, and updating these control conditions is limited to cases in which the ventilation device 2 is turned on or the degree of ventilation of the ventilation device 2 is increased in order to increase indoor comfort or reduce the risk of heatstroke. It is not something that will be done. If the comfort of the room has already increased and the risk of heatstroke has already been suggested, control is implemented to reduce power consumption by suspending excessive operation of the ventilation system 2 or by lowering the degree of ventilation. Conditions may be set, changed, and updated.

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

Note that the present invention is not limited to setting, changing, and updating control conditions in the management setting section 7 based on the method described above. For example, as shown in FIG. 5, as an alternative to the management setting section 7, artificial intelligence (AI) may be used to automatically perform the determination.

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

FIG. 6 shows an artificial intelligence-based judgment model that uses the degree of ventilation necessity for each measurement data (indoor temperature, indoor humidity, carbon dioxide concentration, outdoor temperature, degree of odor, and ozone concentration) as training data. The degree of necessity of this ventilation may be specifically indicated by one or more of the above-mentioned indoor comfort, energy saving, presence or absence of malfunction, risk of heat stroke, possibility of risk of infectious disease, etc. 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 output indicates the need for ventilation. It has become a degree.

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

Using this kind of artificial intelligence, when measurement data is input, the degree of ventilation required is output accordingly. If such a degree of ventilation necessity is output, it is possible to obtain control conditions to be changed that are linked to this degree in the same manner as described above.

Note that, as an alternative to the degree of ventilation necessity, this output may be used to learn control conditions to be changed using direct measurement data. Using such artificial intelligence, when measurement data is input, it is possible to output control conditions that should be changed accordingly.

The ventilation control system 1 to which the present invention is applied is not limited to the embodiments described above. If the automatic controller 3 cannot be installed indoors, the wireless communication control unit 4 is directly connected to the ventilation system 2, as shown in FIG. The sensor 9 is independent from the automatic controller 3 and is provided alone. 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 unit 7 via the public communication network 10.

In this embodiment, the determination by comparing the detected measurement data with the control conditions may be performed by the management setting section 7, or by the wireless communication control unit 4 or the automatic control controller 3. The automatic control controller 3 directly controls the ventilation system 2 itself. In such a case as well, when the setting conditions to be changed are sent from the public communication network 10, the wireless communication control unit 4 judges the measurement data based on this and controls the ventilation apparatus 2.

This FIG. 8(a) is an example in which the automatic controller 3 is installed indoors as shown in FIG. 2, and the wireless communication control unit 4 is further connected to it. In this embodiment, since the sensor 9 is built into the automatic controller 3 itself, even if wireless communication is interrupted, the control operation can be continued without any problem, although it is difficult to change the control conditions each time. On the other hand, the configuration shown in FIG. 8(b) shows an example in which the automatic controller 3 cannot be installed indoors as shown in FIG. measurement data from the wireless communication control unit 4 cannot be sent to the wireless communication control unit 4. Even in such a case, although it is not possible to detect the indoor environment and perform optimal control according to this, and although it is difficult to change the control conditions each time, ventilation itself can be continued. Furthermore, the configuration shown in FIG. 8(b) has the advantage that installation costs and electricity costs can be reduced because the automatic controller 3 is not used.

FIG. 8(c) is an example in which a sensor 9 is provided independently in the room in addition to the configuration shown in FIG. 8(a). In such cases, electricity costs are usually saved by obtaining measurement data via wireless communication via the independently installed sensor 9 without using the automatic controller 3, but in the unlikely event that wireless communication is interrupted. In this case, the control operation can be continued without any problem, although it is difficult to change the control conditions each time as in FIG. 8(a).

As shown in FIG. 9, the outdoor temperature detection sensor 9d may detect the temperature of a suction portion of the ventilation device 2 for sucking outside air into the room. The ventilation device 2 is provided in a vent hole formed on a wall surface of a building structure and directed from indoors to outdoors, and an outdoor temperature detection sensor is installed only in the intake portion of the vent hole for sucking outside air into the room. 9d is attached. This allows the outdoor temperature detection sensor 9d to detect the outdoor temperature with high accuracy without mixing it with the indoor temperature.

In addition, in the above-mentioned embodiment, the automatic control controller 3 and the wireless communication control unit 4 are installed separately and are explained using an example where they have the above-mentioned roles, but the present invention is not limited to this. do not have. The automatic controller 3 and the wireless communication control unit 4 may be configured as a mutually integrated unit, and the unit may be responsible for each function of the automatic controller 3 and the wireless communication control unit 4 described above. Of course.

1 Ventilation control system 2 Ventilation device 3 Automatic controller 4 Wireless communication control unit 5 Wireless communication access point 6 Data server 7 Management setting section 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 conditioning device 41 Wireless communication interface 42 Wired communication interface 43 Communication control unit

A ventilation control system according to a first aspect of the invention is a ventilation control system for controlling only a ventilation device that performs indoor ventilation, and includes: an indoor temperature detection means for detecting indoor temperature; an indoor humidity detection means for detecting indoor humidity; carbon dioxide concentration detection means for detecting the indoor carbon dioxide concentration; indoor temperature detected by the indoor temperature detection means; and indoor humidity detected by the indoor humidity detection means; a determination means for determining the degree of necessity of controlling the ventilation device based on the carbon dioxide concentration detected by the carbon dioxide concentration detection means; and a determination device for controlling the ventilation device based on the degree of necessity determined by the determination means. and a setting means for remotely setting the control conditions via wireless communication.

In the ventilation control system according to a third aspect of the present invention, in the second aspect, the setting means is configured to set any of the indoor ozone concentration and the degree of indoor odor in addition to the indoor temperature, the indoor humidity, and the carbon dioxide concentration. Using a judgment model using the above degree of necessity as training data, in addition to the newly detected indoor temperature, indoor humidity, and carbon dioxide concentration, either the newly detected ozone concentration or odor level is input. The control condition is set according to the degree of necessity outputted from the determination model when the determination model is applied .

In the ventilation control system according to a fourth aspect of the invention, in the second aspect of the invention, the setting means is configured to set any one of the indoor ozone concentration and the indoor odor level in addition to the indoor temperature, the indoor humidity, and the carbon dioxide concentration. In addition to the newly detected indoor temperature, indoor humidity, and carbon dioxide concentration, the newly detected ozone The present invention is characterized in that the control conditions are set according to any one of the energy saving performance, the presence or absence of failure, and the risk of infectious disease output from the judgment model when either the concentration or the degree of odor is input .

A fifth invention is based on the second invention, wherein the setting means sets the control conditions for any one of the indoor ozone concentration and the indoor odor level in addition to the indoor temperature, the indoor humidity, and the carbon dioxide concentration. Using the judgment model as data, in addition to the newly detected indoor temperature, indoor humidity, and carbon dioxide concentration, if any of the newly detected ozone concentration and odor degree are input, It is characterized by setting control conditions output from the judgment model.

A sixth invention is based on the first to third inventions, with reference to the calibration conditions, and 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. The apparatus further includes a calibration means for calibrating one or more of the carbon dioxide concentrations detected by the detection means, and the setting means remotely sets the calibration conditions via wireless communication.

A tenth aspect of the present invention is based on the second aspect of the present invention, in which the setting means is configured to set any of the indoor ozone concentration and the degree of indoor odor in addition to the indoor temperature, the indoor humidity, the carbon dioxide concentration, and the outdoor temperature. Using a judgment model that uses the degree of necessity as training data, in addition to the newly detected indoor temperature, indoor humidity, carbon dioxide concentration, and outdoor temperature, the newly detected ozone concentration and degree of odor are determined. The control condition is set according to the degree of necessity outputted from the determination model when the determination model is input.

An eleventh aspect of the present invention is based on the second aspect of the present invention, in which the setting means is configured to save energy with respect to any one of the indoor ozone concentration and the degree of indoor odor in addition to the indoor temperature, the indoor humidity, the carbon dioxide concentration, and the outdoor temperature. In addition to the newly detected indoor temperature, indoor humidity, carbon dioxide concentration, and outdoor temperature, a judgment model that uses any of the following as training data: The control condition is set according to any of the energy saving performance, the presence or absence of failure, and the risk of infectious disease output from the judgment model when any of the ozone concentration and odor level are input. shall be.

A twelfth invention is characterized in that, in any one of the first to sixth inventions, the setting means further acquires operation information of the heating and cooling device, and further sets the control conditions based on the acquired operation information. shall be.

A thirteenth aspect of the present invention is based on the twelfth aspect of the present invention, in which, in addition to the indoor temperature, the indoor humidity, the carbon dioxide concentration, and the operation information, the setting means further controls the indoor ozone concentration and the degree of indoor odor. Using a judgment model that uses the degree of necessity as training data, in addition to the newly detected indoor temperature, indoor humidity, carbon dioxide concentration, and operation information, the newly detected ozone concentration and degree of odor are determined. The control condition is set according to the degree of necessity outputted from the determination model when the determination model is input.

A ventilation control system according to a first aspect of the invention is a ventilation control system for controlling only a ventilation device that performs indoor ventilation, and includes: an indoor temperature detection means for detecting indoor temperature; an indoor humidity detection means for detecting indoor humidity; carbon dioxide concentration detection means for detecting the indoor carbon dioxide concentration; indoor temperature detected by the indoor temperature detection means; and indoor humidity detected by the indoor humidity detection means; a determination means for determining the degree of necessity of controlling the ventilation device based on the carbon dioxide concentration detected by the carbon dioxide concentration detection means; and a determination device for controlling the ventilation device based on the degree of necessity determined by the determination means. and a setting means for remotely setting the control conditions via wireless communication , and the setting means is configured to set any of the indoor temperature, the indoor humidity, and the risk of infectious disease with respect to the carbon dioxide concentration. Using a judgment model as data, 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. The control conditions are set according to the infectious disease risk output from the determination model when the newly acquired indoor temperature, indoor humidity, and carbon dioxide concentration are input via wireless communication. It is characterized by

In the ventilation control system according to a second aspect of the present invention, in the first aspect, the setting means is configured to set any one of the indoor ozone concentration and the indoor odor level in addition to the indoor temperature, the indoor humidity, and the carbon dioxide concentration. Using a judgment model that uses infectious disease risk as training data, in addition to the newly detected indoor temperature, indoor humidity, and carbon dioxide concentration, either the newly detected ozone concentration or odor level is input. The present invention is characterized in that the control conditions are set in accordance with the infectious disease risk output from the determination model when the infection occurs.

A ventilation control system according to a third aspect of the present invention, in the first aspect or the second aspect, refers to the calibration conditions and compares the indoor temperature detected by the indoor temperature detection means and the indoor humidity detected by the indoor humidity detection means. , further comprising a calibration means for calibrating any 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. shall be.

The ventilation control system according to a fourth invention, in any of the first to third inventions, further comprises an outdoor temperature detection means for detecting an outdoor outdoor temperature, and the determination means refers to ventilation control conditions, Furthermore, the degree of necessity of controlling the ventilation system is determined based on the outdoor temperature detected by the outdoor temperature detection means.

In the ventilation control system according to a fifth aspect, in the fourth aspect, the setting means further acquires the outdoor temperature detected by the outdoor temperature detecting means via wireless communication, and further based on the acquired indoor temperature. The method is characterized in that the control conditions are set based on the above.

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

In the ventilation control system according to a seventh invention, in the fourth invention, the setting means further controls the indoor ozone concentration, the indoor odor level, in addition to the indoor temperature, the indoor humidity, the carbon dioxide concentration, and the outdoor temperature. In addition to the newly detected indoor temperature, indoor humidity, carbon dioxide concentration, and outdoor temperature, the newly detected ozone concentration , The present invention is characterized in that the control conditions are set in accordance with the infectious disease risk output from the determination model when any degree of odor is input.

In the ventilation control system according to an eighth aspect of the invention, in the first to third aspects, the setting means further acquires operation information of the air-conditioning device, and further sets the control conditions based on the acquired operation information. It is characterized by

Claims (13)

In a ventilation control system for controlling a ventilation device that performs indoor ventilation,
indoor temperature detection means for detecting indoor 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 controlling the ventilation system;
A control means for controlling the ventilation device based on the degree of necessity determined by the determination means;
A ventilation control system comprising: a setting means for remotely setting the above control conditions via wireless communication. The setting means sets the indoor temperature detected by the indoor temperature detecting means, the indoor humidity detected by the indoor humidity detecting means, and the carbon dioxide concentration detected by the carbon dioxide concentration detecting means via wireless communication. The ventilation control system according to claim 1, wherein the control conditions are set based on the indoor temperature, the indoor humidity, and the carbon dioxide concentration that have been obtained. The setting means uses a determination model using the degree of necessity for the indoor temperature, the indoor humidity, and the carbon dioxide concentration as training data, and the newly detected indoor temperature, the indoor humidity, and the carbon dioxide concentration. The ventilation control system according to claim 2, wherein the control conditions are set according to the degree of necessity output from the determination model when input. The setting means uses a determination model using the control conditions for the indoor temperature, the indoor humidity, and the carbon dioxide concentration as training data, and the newly detected indoor temperature, the indoor humidity, and the carbon dioxide concentration. The ventilation control system according to claim 2, further comprising setting control conditions that are output from the determination model when input. With reference to the calibration conditions, any one or more of 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. further comprising a calibration means for calibrating the
5. The ventilation control system according to claim 1, wherein the setting means remotely sets the calibration conditions via wireless communication. The setting means transmits the indoor temperature detected by the indoor temperature detecting means, the indoor humidity detected by the indoor humidity detecting means, and the carbon dioxide concentration detected by the carbon dioxide concentration detecting means via wireless communication. The ventilation control system according to claim 5, wherein the calibration conditions are set based on the acquired indoor temperature, the indoor humidity, and the carbon dioxide concentration. Further comprising an outdoor temperature detection means for detecting the outdoor temperature of the room,
Claims 1 to 6, wherein the determination means determines the degree of necessity of controlling the ventilation system based on the ventilation control conditions and the outdoor temperature detected by the outdoor temperature detection means. The ventilation control system according to any one of the above. Claim 7, wherein the setting means further acquires the outdoor temperature detected by the outdoor temperature detection means via wireless communication, and further sets the control condition based on the acquired indoor temperature. Ventilation control system as described. 9. The ventilation control system according to claim 8, wherein the outdoor temperature detection means detects the temperature of a suction portion of the ventilation device for sucking outside air into the room. The setting means uses a determination model using the indoor temperature, the indoor humidity, the carbon dioxide concentration, and the degree of necessity for the outdoor temperature as training data, and uses the newly detected indoor temperature, the indoor humidity, the The ventilation control system according to claim 8 or 9, wherein the control conditions are set according to the degree of necessity output from the determination model when the carbon dioxide concentration and the outdoor temperature are input. Ventilation control according to any one of claims 1 to 6, wherein the setting means further acquires operation information of the air-conditioning and heating device, and further sets the control conditions based on the acquired operation information. system. The setting means uses a determination model that uses the indoor temperature, the indoor humidity, the carbon dioxide concentration, and the degree of necessity for the operation information as training data, and uses the newly detected indoor temperature, the indoor humidity, the 12. The ventilation control system according to claim 11, wherein the control conditions are set in accordance with the degree of necessity output from the determination model when the carbon dioxide concentration and the operation information are input. In a ventilation control method for controlling a ventilation device to a room,
a detection step of detecting indoor temperature, indoor humidity, and carbon dioxide concentration in the room;
a determination step of determining the degree of necessity of controlling the ventilation device based on the indoor temperature, indoor humidity, and carbon dioxide concentration detected in the detection step with reference to ventilation control conditions;
and a control step of controlling the ventilation device based on the degree of necessity determined in the determination step,
A ventilation control method characterized in that the ventilation control conditions are set remotely via wireless communication.

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