JP2020026888A - Ventilation system - Google Patents

Abstract

To provide a ventilation system capable of ventilating a ventilation-required place in a space to be ventilated in a short time.SOLUTION: A ventilation system 80 includes a plurality of ventilation devices 11, 12, and 13 installed in a space to be ventilated, a control device 20 for controlling the ventilation devices 11, 12, and 13, and environment detection sensor units 121, 221, and 321 for detecting an indoor environment in installation places where the ventilation devices 11, 12, and 13 are installed. The control device 20 causes a ventilation volume of all the ventilation devices 11, 12, and 13 when the indoor environment in the installation places satisfies a condition to be larger than at normal time, and causes a ventilation volume of the ventilation devices 11, 12, and 13 when the indoor environment in the installation places does not satisfy a condition to be set to an air volume in which a total ventilation volume by the plurality of ventilation devices 11, 12, and 13 is a minimum value equal to or more than a total required ventilation air volume.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a ventilation system for exhausting indoor air to the outside of a room.

  As the number of ventilation devices installed on the ceiling or the wall, the number that satisfies the ventilation air volume according to the size of the room or the number of occupants is installed in the space to be ventilated. In recent years, the problem of volatile organic compounds (VOCs) generated from building materials in houses has become apparent, and it is necessary to provide ventilation at an appropriate ventilation volume suitable for each room, such as constant ventilation for 24 hours. It has become.

  Patent Literature 1 discloses that a plurality of ventilation devices installed in a room transmit and receive information, and control the air volume of each ventilation device so as to satisfy a required ventilation air volume in the room.

  In the ventilation system as described above, especially when the ventilation system is installed in a fixed place such as a house, when the airflow rate of a certain ventilation area is changed depending on the indoor environment, the airflow rate of another ventilation system is changed. It was an advantage for the user to be able to optimally adjust the ventilation airflow required for the house by changing the air conditioner.

JP 2014-077623 A

  However, the invention disclosed in Patent Literature 1 temporarily increases the ventilation air volume in a ventilation required area where ventilation is necessary until the required ventilation total air volume of the space to be ventilated is exceeded even when a certain location requires rapid ventilation. Because it is not possible to ventilate all at once, it takes time until the air in the area requiring ventilation becomes clean, and the comfort may be poor.

  The present invention has been made in view of the above, and an object of the present invention is to provide a ventilation system that can ventilate a required ventilation location in a ventilation target space in a short time.

  In order to solve the above-described problem and achieve the object, the present invention provides a plurality of ventilation devices installed in a ventilation target space, a control device controlling the plurality of ventilation devices, and an indoor environment at a location where the ventilation device is installed. And an environment detection sensor unit for detecting the The control device increases the ventilation volume of all the ventilation devices that meet the conditions of the indoor environment at the installation location from normal, and increases the ventilation volume of the ventilation devices that do not meet the requirements of the indoor environment at the installation location by multiple ventilation devices. Set the air volume to be the minimum when the total ventilation is more than the required ventilation total air volume.

  ADVANTAGE OF THE INVENTION According to this invention, there exists an effect that the required ventilation point in the ventilation target space can be ventilated in a short time.

The figure which shows the structure of the ventilation system which concerns on Embodiment 1 of this invention. Flow chart showing the flow of the operation in which the control device of the ventilation system according to Embodiment 1 controls the air volume of the ventilation device. Floor plan of the office where the ventilation system according to Embodiment 1 is installed The figure which shows the state which the person entered the office shown in FIG. FIG. 4 is a diagram showing a state in which the air quality of the office room in which the person shown in FIG. FIG. 4 is a diagram showing a state in which the room temperature of the office room in which the person shown in FIG. The figure which shows the state which operated the air conditioner when the room temperature of the office where the ventilation system which concerns on Embodiment 1 was installed is high. FIG. 2 is a diagram illustrating a configuration in which the function of a control unit of the control device according to the first embodiment is implemented by hardware; FIG. 2 is a diagram illustrating a configuration in which the function of a control unit of the control device according to the first embodiment is implemented by software.

  Hereinafter, a ventilation system according to an embodiment of the present invention will be described in detail with reference to the drawings. The present invention is not limited by the embodiment.

Embodiment 1 FIG.
FIG. 1 is a diagram showing a configuration of a ventilation system according to Embodiment 1 of the present invention. The ventilation system 80 according to the first embodiment includes three ventilation devices 11, 12, and 13 and a control device 20. The ventilation devices 11, 12, and 13 and the control device 20 can communicate with each other. The connection between the ventilation devices 11, 12, and 13 and the control device 20 may be a wired connection or a wireless connection. The ventilation devices 11, 12, and 13 are installed in an office room 50, which is a space to be ventilated. In FIG. 1, the control device 20 is installed outside the office room 50, but may be installed inside the office room 50. Here, it is assumed that the required ventilation total air volume of the office room 50 is 540 m ³ / h.

The ventilator 11 includes a ventilation fan 111 that forms a ventilation flow, an environment detection sensor unit 121 that detects an indoor environment, and a control circuit 131 that controls the ventilation fan 111. The environment detection sensor unit 121 includes a human sensor 61 for detecting the presence of a person, a temperature sensor 62 for detecting room temperature, a humidity sensor 63 for detecting humidity, and a floating substance sensor for measuring the content of fine particles in the air. 64 and a gas sensor 65 for detecting the concentration of a specific gas component contained in the air. That is, in the first embodiment, the indoor environment is the presence or absence of a person, the temperature, the humidity, the suspended substance content, and the increase in the gas concentration. Examples of the fine particles detected by the floating substance sensor 64 include solid or liquid particles and pollen having a particle diameter of 2.5 μm or less, referred to as PM (Particulate Matter) 2.5. Examples of the gas sensor 65 include a CO ₂ sensor and an odor sensor. The control circuit 131 has a function of transmitting detection results of various sensors of the environment detection sensor unit 121 to the control device 20 and a function of receiving ventilation air volume setting information from the control device 20.

  The ventilation devices 12 and 13 include ventilation fans 211 and 311, environment detection sensor units 221 and 321, and control circuits 231 and 331, similarly to the ventilation device 11. Although not shown, the environment detection sensor units 221 and 321 of the ventilation devices 12 and 13 include various sensors similarly to the environment detection sensor unit 121 of the ventilation device 11.

The ventilation devices 11, 12, and 13 can set the ventilation intensity in three stages of strong, weak and weak. Here, the ventilation volume at the setting of high ventilation intensity is 250 m ³ / h, the ventilation volume at the low setting is 180 m ³ / h, and the ventilation volume at the low setting is 40 m ³ / h. As described above, the required ventilation total air volume of the office room 50 is 540 m ³ / h, so that if the ventilation intensity of the ventilation devices 11, 12, 13 is set to low, the required ventilation total air volume is secured. The required total ventilation air volume of the space to be ventilated is generally determined according to the floor area or the number of inhabitants, and it is necessary even if there is no ventilation device 11, 12, or 13 operating at the maximum air volume in the space to be ventilated. The number of ventilation devices 11, 12, and 13 is determined to be three so that the total ventilation air volume is secured.

  The control device 20 includes a control unit 21 that sets the ventilation intensity of the ventilation devices 11, 12, and 13. When the detection result of the indoor environment sent from the control circuits 131, 231, 331 of the ventilation devices 11, 12, 13 satisfies the condition of increasing the air volume, the control unit 21 controls the ventilation air volume of the ventilation devices 11, 12, 13 Is increased more than usual. In the first embodiment, the control unit 21 sets the ventilation intensity of the ventilation devices 11, 12, and 13 to be strong, and increases the ventilation air volume from normal. However, it is not necessary to set the ventilation air volume to the maximum when increasing the ventilation air volume of the ventilation devices 11, 12, and 13 more than usual, and if the operation notches of the ventilation devices 11, 12, and 13 are five stages, 2 The ventilation intensity may be set to be the second largest, and the air volume may be increased more than usual. Conditions for increasing the air flow to increase the ventilation air flow more than normal include the presence of a person, the temperature being lower than the lower limit or the upper limit, the humidity being the lower limit or higher or the upper limit, and gas components. Is higher than the reference value, and the content of fine particles is higher than the reference value.

  In addition, the control device 20 includes a required ventilation amount storage unit 22 that stores the required ventilation total air volume of the office room 50. When defining an area that needs to be rapidly ventilated as a required ventilation point, the control unit 21 determines whether or not one of the installation locations of the ventilation devices 11, 12, and 13 requires a required ventilation point. The ventilation intensity of the installed ventilation devices 11, 12, and 13 is set to a value that maximizes the air volume. Further, the control unit 21 provides a combination in which the total ventilation volume of the ventilation devices 11, 12, 13 is minimum when the ventilation volume is equal to or more than the required ventilation total air volume in the ventilation devices 11, 12, 13 installed in places other than the ventilation required location. Set the ventilation intensity as follows. However, it is assumed that the control unit 21 does not set the operation intensity of the ventilation devices 11, 12, and 13 installed in places other than the ventilation required location to be strong. When there are a plurality of combinations that satisfy the above conditions, the control unit 21 sets the ventilation intensity of the ventilation devices 11, 12, and 13 such that the deviation of the ventilation air volume becomes small.

Explaining with a specific example, if any two of the ventilation devices 11, 12, and 13 are set as the ventilation required points, the control unit 21 controls the two units installed at the ventilation required points. Set the ventilation intensity to high. Of the total required ventilation air volume of 540 m ³ / h, the two units whose ventilation intensity is set to high share 250 × 2 = 500 [m ³ / h], so the remaining required ventilation air volume is 540− (250 × 2) = 40 [m ³ / h]. Therefore, the control unit 21 sets the ventilation intensity of one of the units installed in places other than the ventilation required location to be weak. When any one of the ventilators 11, 12, and 13 is located at a location requiring ventilation, the control unit 21 increases the ventilation intensity of one at the location requiring ventilation. Set. Of the required ventilation total air volume of 540 m ³ / h, one of which sets the ventilation intensity to high shares 250 m ³ / h, so the remaining required ventilation air volume is 540−250 = 290 [m ³ / h]. Become. When the ventilation intensity is set to be weak in both the two units when the ventilation intensity is 290 m ³ / h or more in the combination of the weak and weak ventilation intensity, the control unit 21 is installed in a place other than the ventilation required area. Set the ventilation intensity of the two units to low.

  In addition, the control device 20 includes a priority storage unit 23 that stores information on the priority of the indoor environment. The priority order of the indoor environment refers to the presence or absence of a person, an increase in room temperature, a decrease in room temperature, excessive humidification in the room, drying in the room, and an increase in suspended matter among the detections by various sensors included in the environment detection sensor units 121, 221 and 321. And which of the gas concentrations is to be given priority to increase the air volume. In the following description, it is assumed that a higher priority is given to that the room temperature is equal to or higher than the threshold value than to the presence of a person in the area where the ventilation devices 11, 12, and 13 are installed. Further, it is assumed that a higher priority is given to the fact that the amount of suspended solids is equal to or larger than a threshold value, as compared to the presence of a person in the area where the ventilation devices 11, 12, 13 are installed. The control unit 21 determines whether the conditions for increasing the air volume are satisfied in order from the indoor environment with the highest priority. If all of the ventilators 11, 12, and 13 do not satisfy the condition for increasing the air volume, the next priority is determined. It is determined whether or not the indoor environment satisfies the condition for increasing the air volume.

  FIG. 2 is a flowchart illustrating a flow of an operation in which the control device of the ventilation system according to Embodiment 1 controls the air volume of the ventilation device. In step S1, the control unit 21 receives room environment information from the control circuits 131, 231, and 331 of each of the ventilation devices 11, 12, and 13. In step S2, the control unit 21 determines that the ventilation devices 11, 12, and 13 satisfying the condition for increasing the air flow are present in the indoor environment having the highest priority among the indoor environments that have not yet been determined to increase the air flow. It is determined whether or not to do. When the indoor environment of any of the ventilators 11, 12, and 13 satisfies the condition for increasing the air volume, the result is Yes in step S2, and in step S3, the control unit 21 causes the ventilators 11, 12, and 13 to satisfy the condition for increasing the air volume. Is transmitted to the control circuits 131, 231, 331 of which the ventilation air volume is increased more than usual, thereby increasing the operating intensity of the ventilation devices 11, 12, 13 in which the indoor environment satisfies the condition of increasing the air volume. After step S3, the process ends.

  If the indoor environment does not satisfy the condition for increasing the air volume in any of the ventilators 11, 12, and 13, the result is No in Step S2, and in Step S4, the control unit 21 has not yet determined the increase in the air volume. It is determined whether there is an indoor environment. If there is an indoor environment that has not yet been subjected to the determination of the increase in the air volume, the result of step S4 is Yes, and the process proceeds to step S2. If there is no indoor environment that has not yet been subjected to the determination of the air volume increase, the determination in step S4 is No, and the process ends.

  An example of control of the air volume of the ventilation devices 11, 12, and 13 by the control device 20 will be described below.

  FIG. 3 is a sketch of an office where the ventilation system according to the first embodiment is installed. The ventilator 11 is installed in the office desk area, the ventilator 12 is installed in the tabletop area, and the ventilator 13 is installed in the reception area. It is assumed that the room temperature, humidity, amount of suspended solids, and gas concentration in the office 50 are equal to or lower than the reference values.

  The air conditioner 2 is installed in the office desk area. Since only one air conditioner 2 is installed in the office room 50, even when the air conditioner 2 operates, the room temperature tends to be uneven.

As shown in FIG. 3, when there is no person at the installation location of the ventilation devices 11, 12, 13, indoor environment information indicating that there is no person is transmitted from the control circuits 131, 231, 331 to the control unit 21. . The control unit 21 determines that there is no need for ventilation and transmits ventilation air volume setting information for weakening the ventilation intensity to the control circuits 131, 231, 331. The control circuits 131, 231, 331 that have received the ventilation air volume setting information operate the ventilation fans 111, 211, 311 with a weak notch. By setting the ventilation intensity of the ventilation devices 11, 12, and 13 to be low, the required total ventilation air volume 540m ³ / h in the office room 50 is satisfied.

FIG. 4 is a diagram showing a state in which a person has entered the office shown in FIG. As shown in FIG. 4, when there is a person at the place where the ventilators 11 and 12 are installed and there is no person at the place where the ventilator 13 is installed, the control circuits 131 and 231 indicate the indoor environment information indicating that there is a person. Is transmitted to the control unit 21. On the other hand, from the control circuit 331, room environment information indicating that there is no person is transmitted to the control unit 21. The control unit 21 determines that the area where the ventilators 11 and 12 are installed is a required ventilation point, and transmits to the control circuits 131 and 231, ventilation air volume setting information that increases the ventilation intensity. Further, the control unit 21 transmits to the control circuit 331 ventilation air flow rate setting information that weakens the ventilation intensity so that the total ventilation volume of the ventilation devices 11, 12, and 13 becomes a minimum when the required ventilation volume or more. The control circuits 131 and 231 that have received the ventilation air volume setting information operate the ventilation fans 111 and 211 with the strong notch, and the control circuits 331 that have received the ventilation air volume setting information operate the ventilation fan 311 with the weak notch. The total ventilation air volume by the ventilation devices 11, 12, and 13 is 540 m ³ / h, which suppresses over-ventilation. Therefore, it is possible to ventilate a required ventilation area while maintaining energy-saving performance.

  In addition, since the quietness of the place where a person is present may be required, the ventilation system 80 according to the first embodiment is a quietness mode in which the ventilation intensity is weakened or weakened when a person is present at the installation location. And an air quality emphasis mode in which the ventilation intensity is increased when a person is present at the installation location. In the silent mode, if the area where a person is located is one place, the ventilation intensity of the ventilation devices 11, 12, and 13 installed in the area where the person is located is weak, and the area is located in an area where no person is located. By increasing the ventilation intensity of the ventilation devices 11, 12, and 13, the energy saving performance is maintained.

FIG. 5 is a diagram showing a state in which the air quality of the office room in which the person shown in FIG. 4 is present is deteriorated. When the suspended matter increases due to the invasion of pollen and the air quality of the installation location of the ventilator 13 is deteriorated, the control circuits 131 and 231 transmit the indoor environment information indicating that the suspended matter amount is less than the threshold value to the control unit 21. Sent to. On the other hand, from the control circuit 331, room environment information indicating that the amount of suspended solids is equal to or larger than the threshold is transmitted to the control unit 21. Since the priority that the amount of suspended matter is equal to or higher than the threshold is set higher than the presence of a person, the control unit 21 determines that only the area where the ventilator 13 is installed is a ventilation required area. Is transmitted to the control circuit 331. Further, the control device 20 transmits to the control circuits 131 and 231, ventilation air volume setting information for weakening the ventilation intensity so that the total ventilation volume of the ventilation devices 11, 12, and 13 becomes a combination that is minimum when the required ventilation volume or more. I do. The control circuits 131 and 231 that have received the ventilation air volume setting information operate the ventilation fans 111 and 211 with the weak notch, and the control circuits 331 that have received the ventilation air volume setting information operate the ventilation fan 311 with the strong notch. Since the total ventilation air volume by the ventilation devices 11, 12, and 13 is 610 m ³ / h, the office room 50 is in an over-ventilation state.

  When the amount of suspended matter at the installation location of the ventilator 13 is less than the threshold, the control circuits 131, 231 and 331 transmit indoor environment information indicating that the amount of suspended matter is less than the threshold to the control unit 21. At this time, the indoor environment information indicating that there is a person is transmitted to the control unit 21 from the control circuits 131 and 231, and the indoor environment information indicating that there is no person is transmitted to the control unit 21 from the control circuit 331. Therefore, the control unit 21 determines that the area where the ventilators 11 and 12 are installed is a ventilation required area, and transmits to the control circuits 131 and 231 the ventilation air volume setting information that increases the ventilation intensity. Further, the control unit 21 transmits to the control circuit 331 the ventilation air volume setting information that weakens the ventilation intensity so that the total ventilation volume of the ventilation devices 11, 12, and 13 becomes a minimum when the required ventilation total air volume is equal to or greater than the required ventilation total air volume. . The control circuits 131 and 231 that have received the ventilation air volume setting information operate the ventilation fans 111 and 211 with the strong notch, and the control circuits 331 that have received the ventilation air volume setting information operate the ventilation fan 311 with the weak notch.

  When the deterioration of the air quality is detected, the office room 50 is temporarily put in the hyperventilated state, and the improvement of the air quality is prioritized, so that the time required for the improvement of the air quality can be reduced. In addition, by increasing the ventilation intensity of the ventilation device 13 that has detected the deterioration of the air quality, it is possible to suppress the air whose air quality has deteriorated from flowing into other parts.

FIG. 6 is a diagram showing a state in which the room temperature of the office where the person shown in FIG. 4 is present is high. The state where the room temperature is high is a state where the room temperature is equal to or higher than the temperature threshold. Since the room temperature is high at the locations where the ventilation devices 11, 12, and 13 are installed, indoor environment information indicating that the room temperature is higher than the temperature threshold is transmitted from the control circuits 131, 231, and 331 to the control unit 21. Is done. The control unit 21 determines that all of the installation locations of the ventilation devices 11, 12, and 13 are required ventilation locations, and transmits to the control circuits 131, 231, and 331 ventilation air volume setting information that increases the ventilation intensity. The control circuits 131, 231, and 331 that have received the ventilation air volume setting information operate the ventilation fans 111, 211, and 311 with strong notches. Since the total ventilation air volume by the ventilation devices 11, 12, and 13 is 750 m ³ / h, the office room 50 is in an over-ventilation state.

  When the room temperature of the installation location of the ventilators 11, 12, 13 decreases, the control circuits 131, 231, 331 enter a state in which room environment information indicating that the room temperature is below the threshold is transmitted to the control unit 21. At this time, the indoor environment information indicating that there is a person is transmitted to the control unit 21 from the control circuits 131 and 231, and the indoor environment information indicating that there is no person is transmitted to the control unit 21 from the control circuit 331. Therefore, the control unit 21 determines that the area where the ventilators 11 and 12 are installed is a ventilation required area, and transmits to the control circuits 131 and 231 the ventilation air volume setting information that increases the ventilation intensity. Further, the control unit 21 transmits to the control circuit 331 the ventilation air volume setting information that weakens the ventilation intensity so that the total ventilation volume of the ventilation devices 11, 12, and 13 becomes a minimum when the required ventilation total air volume is equal to or greater than the required ventilation total air volume. . The control circuits 131 and 231 that have received the ventilation air volume setting information operate the ventilation fans 111 and 211 with the strong notch, and the control circuits 331 that have received the ventilation air volume setting information operate the ventilation fan 311 with the weak notch.

  When it is detected that the room temperature is high, the office room 50 is temporarily put in a hyperventilated state, and priority is given to lowering the room temperature, so that the time required for lowering the room temperature can be reduced. Further, by ventilating the office room 50 and lowering the room temperature prior to the operation of the air conditioner 2, the air conditioning load can be reduced and energy saving can be achieved.

  FIG. 7 is a diagram illustrating a state in which the air conditioner is operated when the room temperature of the office where the ventilation system according to Embodiment 1 is installed is high. In the office desk area, the room temperature is lower than the threshold value by air conditioning, whereas in the tablet machine area and the reception area, the air-conditioned air is not enough and the room temperature is higher than the threshold value. Since the room temperature of the installation location of the ventilators 12 and 13 is high, the indoor environment information indicating that the room temperature is equal to or higher than the temperature threshold is transmitted from the control circuits 231 and 331 to the control unit 21. The control unit 21 determines that the area in which the ventilators 12 and 13 are installed is a required ventilation location, and transmits to the control circuits 231 and 331 ventilation air volume setting information that increases the ventilation intensity. Further, the control unit 21 transmits to the control circuit 131 the ventilation air volume setting information that weakens the ventilation intensity so that the total ventilation air volume by the ventilation devices 11, 12, and 13 becomes a combination that becomes minimum when the ventilation total air volume is equal to or more than the required ventilation total air volume. . The control circuit 131 that has received the ventilation air volume setting information operates the ventilation fan 111 with the weak notch, and the control circuits 231 and 331 that has received the ventilation air volume setting information operate the ventilation fans 211 and 311 with the strong notch. Thereby, the heat is continued to be discharged in the tabletop area and the reception area where the room temperature is equal to or higher than the threshold value, and the air-conditioned comfortable warm air in the office desk area is suppressed from being exhausted. In addition, since the comfortable temperature air flows toward the ventilation devices 12 and 13 set to the high ventilation intensity, the temperature unevenness in the office room 50 is improved.

  Ventilation system 80 according to Embodiment 1 can achieve an improvement in energy saving and an improvement in the comfort of occupants by suppressing over-ventilation or reducing the air-conditioning load.

  In the ventilation system 80 according to the first embodiment, the control device 20 stores the indoor environment detected by the environment detection sensor units 121, 221 and 321. If periodic air pollution occurs, the control unit 21 performs It is also possible to switch the ventilation intensity setting of the ventilation devices 11, 12, 13 to a control specification for preventing the deterioration of the indoor environment. In addition, the ventilation system 80 according to the first embodiment may have a control specification that cooperates with another electric device such as the air conditioner 2 via a controller of a home energy management system (Home Energy Management System, HEMS).

  In the ventilation system 80 according to Embodiment 1, the control device 20 controls the ventilation devices 11, 12, and 13. However, one of the ventilation devices 11, 12, and 13 becomes a master, and the other becomes a slave. Alternatively, the control circuits 131, 231, and 331 of the ventilation devices 11, 12, and 13 serving as masters may control the ventilation devices 11, 12, and 13 serving as slaves.

  The ventilation system 80 according to the first embodiment includes the environment detection sensor units 121, 221 and 321 for detecting the indoor environment at the installation locations of the ventilation devices 11, 12, and 13 in the ventilation devices 11, 12, and 13, Some or all of the functions of the environment detection sensor units 121, 221 and 321 may be provided outside the ventilation devices 11, 12, and 13.

  The function of the control unit 21 of the control device 20 according to the first embodiment is realized by a processing circuit. The processing circuit may be dedicated hardware or a processing device that executes a program stored in a storage device.

  If the processing circuit is dedicated hardware, the processing circuit may be a single circuit, a composite circuit, a programmed processor, a parallel programmed processor, an application specific integrated circuit, a field programmable gate array, or a combination thereof. Is applicable. FIG. 8 is a diagram illustrating a configuration in which the function of the control unit of the control device according to the first embodiment is realized by hardware. The processing circuit 29 incorporates a logic circuit 29 a for realizing the function of the control unit 21.

  When the processing circuit 29 is a processing device, the function of the control unit 21 is realized by software, firmware, or a combination of software and firmware.

  FIG. 9 is a diagram illustrating a configuration in which the function of the control unit of the control device according to the first embodiment is implemented by software. The processing circuit 29 includes a processor 291 that executes the program 29b, a random access memory 292 used by the processor 291 for a work area, and a storage device 293 that stores the program 29b. The processor 291 expands the program 29b stored in the storage device 293 on the random access memory 292 and executes the program, whereby the function of the control unit 21 is realized. Software or firmware is described in a programming language and stored in the storage device 293. The processor 291 can be, but is not limited to, a central processing unit. The storage device 293 includes a random access memory (RAM), a read only memory (ROM), a flash memory, an erasable programmable read only memory (EPROM), and a semiconductor memory device such as an EEPROM (registered trademark). it can. The semiconductor memory may be a nonvolatile memory or a volatile memory. In addition to the semiconductor memory, a magnetic disk, a flexible disk, an optical disk, a compact disk, a mini disk, or a DVD (Digital Versatile Disc) can be applied to the storage device 293. Note that the processor 291 may output or store data such as an operation result to the storage device 293, or may store the data in an auxiliary storage device (not shown) via the random access memory 292.

  The processing circuit 29 implements the function of the control unit 21 by reading and executing the program 29b stored in the storage device 293. It can be said that the program 29b causes a computer to execute a procedure and a method for realizing the function of the control unit 21.

  Note that the processing circuit 29 may be partially realized by dedicated hardware, and partially realized by software or firmware.

  As described above, the processing circuit 29 can realize the above-described functions by hardware, software, firmware, or a combination thereof.

  The configurations described in the above embodiments are merely examples of the contents of the present invention, and can be combined with other known technologies, and can be combined with other known technologies without departing from the gist of the present invention. Parts can be omitted or changed.

  2 air conditioner, 11, 12, 13 ventilation device, 20 control device, 21 control unit, 22 required ventilation volume storage unit, 23 priority storage unit, 29 processing circuit, 29a logic circuit, 29b program, 50 office, 61 Human sensor, 62 temperature sensor, 63 humidity sensor, 64 suspended matter sensor, 65 gas sensor, 80 ventilation system, 111, 211, 311 ventilation fan, 121, 221, 321 environment detection sensor unit, 131, 231, 331 control circuit, 291 Processor, 292 random access memory, 293 storage.

Claims (6)

A plurality of ventilation devices installed in the space to be ventilated,
A control device for controlling a plurality of the ventilation devices,
Having an environment detection sensor unit for detecting the indoor environment of the installation location of the ventilation device,
The control device increases the ventilation volume of all of the ventilation devices that satisfy the conditions where the indoor environment of the installation location is higher than normal, and the ventilation volume of the ventilation device where the indoor environment of the installation location does not satisfy the conditions, A ventilation system characterized in that the total ventilation volume of the ventilation system is set to a minimum value when the total ventilation volume is equal to or greater than the required ventilation total ventilation volume. The environment detection sensor unit,
The ventilation system according to claim 1, wherein it is detected that a person is present at a location where the ventilation device is installed.   The control device can be set to one of an air quality-oriented mode for increasing the air volume of the ventilation device where a person is located at the installation location, and a silent importance-oriented mode for decreasing the air volume of the ventilation device where a person is located at the installation location. The ventilation system according to claim 1, wherein: The environment detection sensor unit detects a plurality of types of the indoor environment,
The control device has a rank information storage unit that stores a priority order of the plurality of indoor environments detected by the environment detection sensor unit, and the priority order satisfies a condition of increasing the air volume in order from the indoor environment in a higher order. Determining whether or not all of the plurality of ventilators do not satisfy the condition for increasing the air flow, and determining whether the indoor environment of the next rank satisfies the condition for increasing the air flow. Item 4. The ventilation system according to any one of Items 1 to 3.   The said control apparatus makes the driving | running information of the air conditioner installed in the said ventilation target space acquired via the controller of the home energy management system into the said indoor environment, The Claims 1 to 4 characterized by the above-mentioned. Ventilation system according to paragraph.   The control device stores the indoor environment of the installation location of the plurality of ventilation devices, and if the indoor environment periodically satisfies the condition of the air flow increase, before the indoor environment satisfies the condition of the air flow increase. The ventilation system according to any one of claims 1 to 5, wherein the ventilation volume of the ventilation device is set to a maximum air volume.

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