Ventilation control system and ventilation control method

Abstract

To provide a ventilation control system which can perform proper ventilation control even in the case that communication connection is failed, and a ventilation control method.SOLUTION: A ventilation control system 100 for controlling the ventilation of a building structure 2 using a center heat source system via radio communication WL comprises: a blower 21 for sending air to a plurality of spaces 22 in the building structure 2; a control device 1 for controlling the blower 21 on the basis of output schedule information indicating a future control condition of the blower 21; and a management part 4 for transmitting new output scheduled information to the control device 1 via the radio communication WL. When the control device 1, when not receiving the new output scheduled information during a preset reception period, controls the blower 21 on the basis of preset forcible information indicating the control condition of the blower 21.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a ventilation control system and a ventilation control method for controlling ventilation of a building structure using a central heat source system via wireless communication. [Background technology]

[0002] Conventionally, as a method for controlling ventilation in a building structure, a ventilation system such as that disclosed in Patent Document 1 has been proposed.

[0003] Patent Document 1 discloses a ventilation system that is applied to a kitchen including a plurality of ventilation zones each of which requires a necessary ventilation volume. The ventilation system of Patent Document 1 includes an exhaust fan for discharging oily smoke and the like from the ventilation zone, an exhaust hood connected to the exhaust fan via a duct, a gas cooking appliance, a gas flow sensor attached to a gas supply pipe that supplies gas to the gas cooking appliance, and a control device connected to each of the gas flow sensor and the exhaust fan. The control device of Patent Document 1 calculates the necessary ventilation volume for each ventilation zone based on the gas flow rate acquired by the gas flow rate sensor, and controls the operation volume of the exhaust fan based on the maximum of the calculated values. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Patent Publication No. 2022-125521 Summary of the Invention [Problem to be solved by the invention]

[0005] Here, Patent Document 1 discloses that the control device may be wirelessly connected to the supply air fan and the exhaust fan. However, when controlling the supply air fan etc. using wireless communication, a communication connection failure may occur due to the influence of the surrounding environment of the building structure, etc., and appropriate control may not be possible. In particular, there is a concern that insufficient ventilation in a building structure may have an adverse effect on the human body. In this regard, the technology disclosed in Patent Document 1 does not state or suggest anything about the control of the supply air fan etc. in the case of a communication connection failure, making it difficult to solve the above-mentioned problem.

[0006] Therefore, the present invention has been devised in consideration of the above-mentioned problems, and its object is to provide a ventilation control system and a ventilation control method that can perform appropriate ventilation control even in the event of a poor communication connection. [Means for solving the problem]

[0007] The ventilation control system of the first invention is a ventilation control system that controls the ventilation of an architectural structure using a central heat source system via wireless communication, and comprises a blower that blows air to multiple spaces in the architectural structure, a control device that controls the blower based on output schedule information that indicates future control conditions of the blower, and a management unit that transmits new output schedule information to the control device via the wireless communication, and is characterized in that if the control device does not receive the new output schedule information within a predetermined reception period, it controls the blower based on forced information that indicates predetermined control conditions of the blower.

[0008] A ventilation control system according to a second aspect of the present invention is the ventilation control system according to the first aspect of the present invention, characterized in that the compulsory information indicates a condition for maintaining maximum output of the blower.

[0009] A ventilation control system according to a third aspect of the present invention is the system according to the first aspect of the present invention, wherein the output schedule information includes at least an operation period and a stop period of the blower.

[0010] The ventilation control system in the fourth invention, in any of the first to third inventions, further comprises a measuring device provided for each of the multiple spaces for measuring environmental characteristics of the space, and the management unit generates the new output schedule information based on multiple measurement values ​​measured using the multiple measuring devices.

[0011] The ventilation control system of the 5th invention is characterized in that, in the 4th invention, the measuring device includes a carbon dioxide concentration meter that measures the concentration of carbon dioxide in the space, and the management unit generates the new output schedule information when at least one of the multiple concentrations exceeds a predetermined reference value.

[0012] The ventilation control system of the 6th invention is characterized in that, in the 5th invention, the measuring device includes an air volume meter that measures the air volume of air flowing into the space, the management unit generates the new output planned information based on the concentration and the air volume measured for each of the multiple spaces, and the reference value includes multiple reference concentrations that differ depending on the air volume.

[0013] The ventilation control system of the seventh invention is characterized in that, in the fourth invention, the management unit includes an information storage unit that stores a learning model constructed by machine learning using multiple pairs of learning data indicating previously acquired reference measurement values ​​and reference output schedule information linked to the reference measurement values, and a generation unit that refers to the learning model and generates the new output schedule information based on the measurement values.

[0014] The ventilation control system of the 8th invention is characterized in that, in the 4th invention, the management unit generates the new output schedule information based on spatial information including at least one of the volume, shape, and occupancy of the multiple spaces and the measurement values.

[0015] The ventilation control system of the 9th invention is characterized in that, in the 8th invention, the management unit includes an information storage unit that stores a learning model constructed by machine learning using a set of learning data indicating previously acquired reference spatial information, reference measurement values ​​linked to the reference spatial information, and reference planned output information linked to the reference measurement values, and a generation unit that refers to the learning model and generates the new output planned information based on the spatial information and the measurement values.

[0016] The ventilation control method of the 10th invention is a ventilation control method for controlling ventilation of an architectural structure using a central heat source system via wireless communication, and is characterized in that it includes a control step of controlling the blower using a control device based on output schedule information indicating future control conditions of a blower that blows air to multiple spaces in the architectural structure, a transmission step of transmitting new output schedule information to the control device using a management unit via the wireless communication, a reception step of determining whether the new output schedule information has been received within a predetermined reception period, and a forced control step of controlling the blower using the control device based on forced information indicating predetermined control conditions of the blower if the new output schedule information is not received within the reception period. Effect of the Invention

[0017] According to the first to ninth inventions, the management unit transmits new output schedule information to the control device via wireless communication. Furthermore, if the control device does not receive new output schedule information within a preset reception period, it controls the blower based on compulsory information indicating preset control conditions for the blower. Therefore, even if the control device is unable to receive new output schedule information due to a poor communication connection or the like, it can control the blower based on the compulsory information. This makes it possible to perform appropriate ventilation control even in the case of a poor communication connection.

[0018] In particular, according to the second aspect of the present invention, the forced information indicates the conditions for maintaining the maximum output of the blower. Therefore, even in the case of poor communication connection, it is easy to prevent insufficient ventilation from occurring. This makes it possible to suppress the effects on the human body caused by insufficient ventilation.

[0019] In particular, according to the third aspect of the present invention, the output schedule information includes at least the operation period and stop period of the blower. Therefore, the blower can be continuously controlled while minimizing the number of communication connections from the management unit to the control device. This makes it possible to perform ventilation control that takes into account the reduction of power consumption even in the case of a building structure where communication connection failures are likely to occur.

[0020] In particular, according to the fourth aspect of the present invention, the management unit generates new output schedule information based on a plurality of measurement values ​​measured using a plurality of measuring devices. Therefore, it is possible to generate output schedule information that takes into account the characteristics of the environments in a plurality of spaces. This makes it possible to improve the accuracy of ventilation control.

[0021] In particular, according to the fifth aspect of the present invention, the management unit generates new output schedule information when at least one of the multiple concentrations exceeds a preset reference value. Therefore, it is possible to prevent insufficient ventilation in multiple spaces while minimizing the number of communication connections from the management unit to the control device. This makes it easier to perform appropriate ventilation control even in architectural structures where communication connection problems are likely to occur.

[0022] In particular, according to the sixth aspect of the present invention, the management unit generates new output schedule information based on the concentration and air volume measured for each of the multiple spaces. In addition, the reference value includes multiple reference concentrations that vary according to the air volume. Therefore, even if the reference value of the carbon dioxide concentration varies according to the air volume supplied to the space, it is possible to generate output schedule information suitable for the environment of the space. This makes it possible to further improve the accuracy of ventilation control.

[0023] In particular, according to the seventh aspect of the present invention, the generating unit refers to the learning model and generates new output schedule information based on the measurement value. Therefore, compared to the measurement value evaluation method using the reference value, it is easier to generate output schedule information that takes into account the fluctuation tendency of the measurement value, etc. This makes it possible to further improve the accuracy of ventilation control.

[0024] In particular, according to the eighth aspect of the present invention, the management unit generates new output schedule information based on the space information and the measurement values. Therefore, it is possible to generate output schedule information taking into account the different characteristics of each space. This makes it possible to further improve the accuracy of ventilation control.

[0025] In particular, according to the ninth aspect of the present invention, the generating unit refers to the learning model and generates new output schedule information based on the spatial information and the measured values. Therefore, compared to the method of evaluating the measured values ​​using the reference values, it is easier to generate output schedule information that takes into account the characteristics of each space and the fluctuation tendency of the measured values. This makes it possible to further improve the accuracy of ventilation control.

[0026] According to the tenth aspect of the invention, the transmission step transmits new output schedule information to the control device using the management unit via wireless communication. Moreover, the forced control step, if no new output schedule information is received during the reception period, controls the blower using the control device based on forced information indicating preset control conditions for the blower. Therefore, even if the control device cannot receive the output schedule information due to a poor communication connection or the like, it is possible to control the blower based on the forced information. This makes it possible to perform appropriate ventilation control even in the case of a poor communication connection. [Brief description of the drawings]

[0027] [Figure 1] FIG. 1(a) is a schematic diagram showing an example of an architectural structure, and FIG. 1(b) is a schematic diagram showing an example of a ventilation control system in a first embodiment. [Diagram 2] FIG. 2 is a schematic diagram showing an example of the output schedule information, the device information, the operation information, and the control information. [Diagram 3] FIG. 3(a) is a schematic diagram showing an example of the configuration of a control device, and FIG. 3(b) is a schematic diagram showing an example of the function of the control device. [Figure 4] FIG. 4 is a flowchart showing an example of a ventilation control method in the first embodiment. [Diagram 5] FIG. 5(a) is a schematic diagram showing an example of a position where a measuring device is installed, and FIG. 5(b) is a schematic diagram showing an example of a position where a flow meter is installed. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0028] Hereinafter, an example of a ventilation control system and a ventilation control method according to an embodiment of the present invention will be described with reference to the drawings.

[0029] (First embodiment: ventilation control system 100) FIG. 1(a) is a schematic diagram showing an example of an architectural structure 2, and FIG. 1(b) is a schematic diagram showing an example of a ventilation control system 100 in a first embodiment.

[0030] The ventilation control system 100 is used to control ventilation of the building structure 2 using a central heat source system via wireless communication WL. The ventilation control system 100 can perform ventilation control suitable for reducing power consumption in the building structure 2, for example.

[0031] The architectural structure 2 may be, for example, a hotel or office building, or a commercial facility such as a department store or shopping center, and may be any structure that uses a central heat source system. The central heat source system may be a known system such as a single duct system or a unit system for each floor.

[0032] In the architectural structure 2, as shown in FIG. 1(a), for example, a plurality of spaces 22 and ducts 23 connected to each space 22 are installed. Each space 22 is an area separated by, for example, an inner wall or a ceiling, and may have any volume or shape. The space 22 is an area used for purposes such as a living room, a guest room, an office, a store, etc. The duct 23 is a structure conforming to a central heat source system, and may have any structure according to the purpose. The duct 23 has, for example, one base end and multiple tips that branch out from the base end and are connected to the multiple spaces 22. For this reason, for example, by taking in air from the base end, the air can be sent to each space 22 via the multiple tips.

[0033] The ventilation control system 100 includes a blower 21, a control device 1, and a management unit 4. The blower 21 and the control device 1 are provided in an architectural structure 2. The management unit 4 is connected to the control device 1 via wireless communication WL. For example, as shown in FIG. 1(b), multiple control devices 1 may be connected to one management unit 4.

[0034] <Blower 21> The blower 21 sends air to a plurality of spaces 22 in the architectural structure 2. The blower 21 is connected to a duct 23, for example, to a base end. As the blower 21, a device conforming to a known system such as a VAV (Variable Air Volume) system or a CAV (Constant Air Volume) system may be used.

[0035] The blower 21 has a specification to be controlled, for example, by a control panel installed in the architectural structure 2. In this case, a control device 1 is newly provided in the architectural structure 2, and the blower 21 is controlled via the control device 1, thereby realizing a ventilation control system 100.

[0036] <Control device 1> The control device 1 controls the fan 21 based on the output schedule information D30. The control device 1 may control the fan 21 using, for example, a control panel provided in the building structure 2, existing control signals (signal information), or connection wiring, or may control the fan 21 using newly set signal information or connection wiring.

[0037] The output schedule information D30 indicates future control conditions for the blower 21. The output schedule information D30 may indicate control conditions for any time period, such as 30 minutes, 1 hour, or 1 day, or may indicate control conditions according to the purpose of the building structure 2, such as "check-in time period," "cleaning time period," "closing time period," etc.

[0038] The output schedule information D30 includes information on the output level of the blower 21 ("output stopped", "output 20%", "output 40%", "output 50%" in FIG. 2) for a specific time ("0:00", "4:00", "8:00", "12:00", "16:00", "20:00" in FIG. 2), for example, as shown in FIG. 2. This enables the control device 1 to control the blower 21 at the specific time included in the output schedule information D30.

[0039] The output schedule information D30 may include, for example, device information D31. The device information D31 indicates information on the characteristics of the device, such as the type and specifications of the blower 21 and the duct 23, and indicates, for example, manufacturer information and model number information of the blower 21. When the device information D31 is included in the output schedule information D30, for example, the control device 1 can control only the blower 21 that matches the content of the device information D31. This makes it possible to suppress erroneous control of the blower 21.

[0040] The output schedule information D30 may include, for example, operation information D32. The operation information D32 indicates the operation content of the blower 21, such as "start", "increase the blowing amount by one step", "output xx%", and the like.

[0041] The output schedule information D30 may include, for example, control information D33. The control information D33 indicates a control signal (signal information) for executing a specific operation of the blower 21. The control information D33 may be linked to, for example, the device information D31 and the operation information D32, and may indicate different signal information for each content of the device information D31 (for example, the manufacturer and model number of the blower 21) and each content of the operation information D32.

[0042] The device information D31, the operation information D32, and the control information D33 may be included in the output schedule information D30 in any combination depending on the application. For example, if the control device 1 stores in advance a link between the operation information D32 and the control information D33, the output schedule information D30 may include the operation information D32 and may not include the control information D33. In this case, the control device 1 can specify the control information D33 corresponding to the output schedule information D30 based on the operation information D32 included in the output schedule information D30 and control the blower 21. Note that the "new output schedule information D30n" described later indicates the same type of information as the above-mentioned output schedule information D30, and will be described as "output schedule information D30" depending on the content of the description.

[0043] As the control device 1, for example, a known single board computer such as Raspberry Pi (registered trademark) or a known electronic device capable of controlling the blower 21 is used. As shown in FIG. 3(a), for example, the control device 1 includes a housing 10, a CPU (Central Processing Unit) 101, a ROM (Read Only Memory) 102, a RAM (Random Access Memory) 103, a storage unit 104, and I / Fs 105 to 107. The components 101 to 107 are connected by an internal bus 110.

[0044] The CPU 101 controls the entire control device 1. The ROM 102 stores operation codes for the CPU 101. The RAM 103 is a working area used when the CPU 101 operates. The storage unit 104 stores various information (e.g., a plurality of pieces of output schedule information D30, etc.) used in the ventilation control system 100. As the storage unit 104, for example, a data storage device such as an SSD (Solid State Drive) is used.

[0045] The I / F 105 is an interface for transmitting and receiving various information with the blower 21, the management unit 4, etc. The I / F 106 is an interface for transmitting and receiving information with the input unit 108. For example, a keyboard is used as the input unit 108, and the manager of the ventilation control system 100 inputs various information control commands and the like through the input unit 108. The I / F 107 is an interface for transmitting and receiving various information with the display unit 109. The display unit 109 displays various information stored in the storage unit 104. A display is used as the display unit 109, and in the case of a touch panel type, for example, it is provided integrally with the input unit 108. Note that the input unit 108 and the display unit 109 may be connected only during the preparation stage of the control device 1, for example, and may be replaced by an external electronic device.

[0046] For example, an external storage medium different from the control device 1 may be used instead of the storage unit 104. As the external storage medium, for example, a known electronic device such as a personal computer may be used and may be connected to the control device 1 via an I / F 106 or the like.

[0047] Fig. 3(b) is a schematic diagram showing an example of the functions of the control device 1. The control device 1 includes, for example, a control unit 11, a receiving unit 12, a forcing unit 13, and a storage unit 14. Each component shown in Fig. 3(b) is realized by the CPU 101 using the RAM 103 as a working area and executing a program stored in the storage unit 104 or the like.

[0048] <<Control unit 11>> The control unit 11 controls the blower 21 based on the output schedule information D30. For example, when the control unit 11 acquires new output schedule information D30n, the control unit 11 controls the blower 21 based on the latest output schedule information D30. In addition to the above, for example, when the control unit 11 acquires a plurality of pieces of output schedule information D30, the control unit 11 selects a specific output schedule information D30 based on the device information D31 included in each piece of output schedule information D30, and controls the blower 21. The control unit 11 acquires the output schedule information D30 stored in the storage unit 104 via the memory unit 14, for example, and controls the blower 21.

[0049] <<Receiving unit 12>> The receiving unit 12 receives new output schedule information D30n transmitted from the management unit 4 via wireless communication WL. The receiving unit 12 may determine whether or not new output schedule information D30n has been received, for example, during a preset reception period. For example, in the ventilation control system 100, when it is determined that new output schedule information D30n has been received during the reception period, the control unit 11 controls the blower 21. In addition to the above, when it is determined that new output schedule information D30n has not been received during the reception period, for example, the forcing unit 13 controls the blower 21.

[0050] The reception period may be set using any time such as 30 minutes, 1 hour, 1 day, etc., or may be set according to the purpose of the architectural structure 2 such as "check-in time slot," "cleaning time slot," "closing time slot," etc. The reception period can be set arbitrarily according to the communication environment of the architectural structure 2, for example.

[0051] <<Compulsion Part 13>> When new output schedule information D30n is not received within a preset reception period, forcing unit 13 controls blower 21 based on the forcing information. Forcing unit 13 acquires the forcing information stored in storage unit 104 via storage unit 14, for example, and controls blower 21.

[0052] The forcing information indicates a preset control condition for the blower 21. The forcing information is set, for example, based on the space 22 that requires the largest amount of ventilation among the multiple spaces 22. In this case, it is possible to suppress the occurrence of insufficient ventilation in the multiple spaces 22.

[0053] The compulsion information indicates, for example, a condition for maintaining the maximum output of the fan 21. In this case, even in the case of a poor communication connection, it is possible to prevent the fan 21 from stopping.

[0054] The forcing unit 13 may generate the forcing information by, for example, referring to the current output schedule information D30. In this case, for example, the forcing unit 13 calculates an average output or a maximum output for a plurality of outputs set by the output schedule information D30, and generates the forcing information.

[0055] <<Storage section 14>> The storage unit 14 retrieves, as necessary, various pieces of information stored in the storage unit 104. The storage unit 14 stores, as necessary, new output schedule information D30n and the like received by the receiving unit 12, for example, in the storage unit 104.

[0056] <Management Department 4> The management unit 4 transmits the output schedule information D30 (for example, new output schedule information D30n) to the control device 1 via wireless communication WL. A known electronic device such as a personal computer may be used as the management unit 4, and may include an information storage unit such as a server. Note that, for example, the above-mentioned electronic device and the information storage unit that stores various information may be provided separately via a communication network 5. In this case, a system provided by a third party such as a known cloud server may be used as the information storage unit.

[0057] The management unit 4 selects output schedule information D30 suitable for the status of the building structure 2 from among multiple pieces of output schedule information D30 stored in, for example, an information storage unit or the like, and transmits the selected output schedule information D30n to the control device 1. The management unit 4 may be set to transmit new output schedule information D30n every period (for example, one week) longer than the control period (for example, one day) included in the output schedule information D30.

[0058] The management unit 4 generates the output schedule information D30, for example, according to the state of the architectural structure 2, and may also generate the output schedule information D30, for example, according to regulations regarding ventilation of the architectural structure 2. The management unit 4 can use a known technique as a method for generating the output schedule information D30.

[0059] For example, the management unit 4 generates output schedule information D30 using information such as device information D31, operation information D32, and control information D33 based on desired control conditions (e.g., output conditions for time) input by an administrator, etc. Note that various information such as device information D31, operation information D32, and control information D33 that may be included when generating the output schedule information D30 may be stored in the information storage unit in advance in multiple pieces and selected as necessary.

[0060] Note that control information D33 may be stored in a state linked to device information D31, for example. For example, model number information "A123" of blower 21 manufactured by manufacturer A is linked to signal information "10XXX" for controlling the model number information "A123." Also, model number information "B456" of blower 21 manufactured by manufacturer B is linked to signal information "11XXX" for controlling the model number information "B456."

[0061] The management unit 4 may display a control template that can be viewed by, for example, a manager of the ventilation control system 100. Then, based on the desired control conditions input by the manager, the management unit 4 converts the data into a data format suitable for the blower 21, and generates the converted data as output schedule information D30. In this case, for example, for one desired control condition, output schedule information D30 suitable for a plurality of blowers 21 each having different specifications can be easily generated.

[0062] The management unit 4 transmits new output schedule information D30n to, for example, the control device 1 provided for each of the multiple building structures 2. At this time, the management unit 4 may transmit the same new output schedule information D30n to the multiple control devices 1, or may transmit different new output schedule information D30n to each control device 1.

[0063] The management unit 4 may receive, for example, notification information notifying that new output schedule information D30n has been received from the control device 1. Furthermore, if the management unit 4 does not receive notification information after transmitting new output schedule information D30n, the management unit 4 may be set to transmit the new output schedule information D30n again.

[0064] The management unit 4 may generate the output schedule information D30 based on, for example, spatial information related to the characteristics of the space 22. The spatial information includes, for example, at least one of the volume, shape, and capacity of the space 22. By generating the output schedule information D30 based on the spatial information, the control conditions can be set in detail. In particular, when repairs, maintenance, renovation, etc. are performed on the architectural structure 2, the spatial information may differ from that at the time of new construction. Even in this case, by generating the output schedule information D30 based on the spatial information, it is possible to realize ventilation control suitable for the space 22 in the current state. Note that the spatial information is stored in, for example, an information storage unit, etc., and is updated by an administrator, etc. as necessary. In addition, the spatial information may include, for example, the number of spaces 22 in the architectural structure 2, the arrangement position of the duct 23 in each space 22, the capacity of the space 22, the business hours of the space 22, etc.

[0065] The management unit 4 may generate the output schedule information D30 based on external information indicating, for example, information on the operation of the architectural structure 2 and information on the surrounding environment. As the external information, information on the operation of the architectural structure 2, such as the maintenance status of the blower 21, information on the currently contracted electric power company, information on the contract plan of each electric power company, information on the amount of electricity used, and the date of start of use of the blower 21, is used. In addition to the above, as the external information, information obtained from a public communication network such as the Internet, such as weather forecasts, a body temperature index, a heat shock forecast, heat stroke information, precipitation probability, pollen dispersion information, yellow sand dispersion information, air pollution information such as smog and PM2.5, volcanic eruptions and the resulting gas filling, ashfall information, ocean wave information, outdoor wind direction, wind speed information, traffic congestion information, radiation information including that caused by nuclear accidents, various news information, beer index, ice index, etc., is used.

[0066] The management unit 4 may generate the output schedule information D30 based on, for example, performance information indicating performance values ​​of past electricity usage in the building structure 2 and the fan 21. For example, the performance information may be usage performance such as "150 kWh used from 12:00 to 13:00 last Wednesday" or "120 kWh used from 13:00 to 15:00 last Tuesday." The performance information may be stored in an information storage unit or the like by an administrator, or may be calculated on the management unit 4 side based on the output schedule information D30 used by the control device 1.

[0067] <Communication Network 5> The communication network 5 is an internet network or the like for communication between the management unit 4 and the control device 1. The communication network 5 may be realized by a known wireless communication technology such as LTE (Long Term Evolution) or the like, and can be realized by using any technology depending on the application.

[0068] (First embodiment: ventilation control method) Next, a description will be given of an example of a ventilation control method in the first embodiment. Fig. 4 is a flowchart showing an example of a ventilation control method in the first embodiment.

[0069] The ventilation control method includes a control step S110, a sending step S120, a receiving step S130, and a forced control step S140.

[0070] <Control Step S110> In the control step S110, the blower 21 is controlled using the control device 1 based on the output schedule information D30. The control unit 11 of the control device 1 controls the blower 21 based on, for example, preset output schedule information D30. When the control unit 11 acquires new output schedule information D30n, the control unit 11 controls the blower 21 based on the new output schedule information D30n.

[0071] <Transmission step S120> In the transmission step S120, the management unit 4 transmits the new output schedule information D30n to the control device 1 via wireless communication WL. The management unit 4 may transmit the new output schedule information D30n to the control device 1 multiple times during a certain period (e.g., a reception period), for example.

[0072] <Reception step S130> In the reception step S130, it is determined whether or not new output schedule information D30n has been received during a preset reception period. For example, if the reception unit 12 of the control device 1 receives new output schedule information D30n during the reception period, the process proceeds to a control step S110, and if the reception unit 12 does not receive new output schedule information D30n during the reception period, the process proceeds to a forced control step S140.

[0073] <Compulsory control step S140> In the forcing control step S140, based on the forcing information, the forcing unit 13 of the control device 1 controls the blower 21 based on the forcing information until new output schedule information D30n is received.

[0074] The ventilation control method is completed by carrying out each of the above steps. Note that the frequency of carrying out each step can be set arbitrarily depending on the application.

[0075] According to this embodiment, the management unit 4 transmits new output schedule information D30n to the control device 1 via wireless communication WL. Furthermore, if the control device 1 does not receive new output schedule information D30n within a preset reception period, the control device 1 controls the blower 21 based on compulsion information indicating preset control conditions for the blower 21. Therefore, even if the control device 1 cannot receive new output schedule information D30n due to a poor communication connection or the like, it can control the blower 21 based on the compulsion information. This makes it possible to perform appropriate ventilation control even in the case of a poor communication connection.

[0076] According to the present embodiment, the compulsory information indicates the conditions for maintaining the maximum output of the blower 21. Therefore, even in the case of a poor communication connection, it is possible to easily prevent insufficient ventilation from occurring. This makes it possible to suppress the effects on the human body caused by insufficient ventilation.

[0077] Furthermore, according to this embodiment, the output schedule information D30 includes at least the operation period and stop period of the blower 21. Therefore, the blower 21 can be continuously controlled while minimizing the number of communication connections from the management unit 4 to the control device 1. This makes it possible to perform ventilation control that takes into consideration the reduction of power consumption even in the case of an architectural structure 2 where communication connection failures are likely to occur.

[0078] Moreover, according to this embodiment, the transmission step S120 transmits new output schedule information D30n to the control device 1 using the management unit 4 via wireless communication WL. Furthermore, if new output schedule information D30n is not received during the reception period, the forced control step S140 controls the blower 21 using the control device 1 based on forced information indicating a preset control condition for the blower 21. Therefore, even if the control device 1 cannot receive the output schedule information D30 due to a poor communication connection or the like, it can control the blower 21 based on the forced information. This makes it possible to perform appropriate ventilation control even in the case of a poor communication connection.

[0079] (Second embodiment: ventilation control system 100) Next, an example of a ventilation control system 100 in the second embodiment will be described. The difference between this embodiment and the above-mentioned embodiment is that a measuring device 3 is provided. Note that a description of the same contents as those in the above-mentioned embodiment will be omitted.

[0080] The ventilation control system 100 includes a measuring device 3, as shown in FIG. 5(a), for example. The measuring device 3 is provided for each of a plurality of spaces 22, and measures environmental characteristics in the spaces 22. The measuring device 3 transmits measurement results to the management unit 4 via a communication connection, such as wireless communication WL. In this case, the management unit 4 can generate output schedule information D30 based on a plurality of measurement values ​​measured using the plurality of measuring devices 3. In particular, when the environmental characteristics of each space 22 change over time, it becomes easier to set control conditions appropriate for each time period, taking into account the change over time in the measurement values.

[0081] The measurement device 3 includes, for example, a carbon dioxide concentration meter. The carbon dioxide concentration meter measures the concentration of carbon dioxide in the space 22. As the carbon dioxide concentration meter, a known measurement device is used.

[0082] In the case where the measuring device 3 includes a carbon dioxide concentration meter, for example, the management unit 4 generates output schedule information D30 when at least one of the multiple concentrations exceeds a preset reference value. Therefore, it is possible to prevent insufficient ventilation in the multiple spaces 22 while minimizing the number of communication connections from the management unit 4 to the control device 1.

[0083] The measurement device 3 includes, for example, an anemometer 3a. The anemometer 3a measures the volume of air flowing into the space 22. For example, as shown in Fig. 5(b), the anemometer 3a is provided near the tip 23a of a duct 23 arranged for each space 22. A known measurement device is used as the anemometer 3a.

[0084] When the measurement device 3 includes an airflow meter 3a, for example, the management unit 4 generates the output schedule information D30 based on a plurality of airflow volumes. At this time, for example, the management unit 4 may generate the output schedule information D30 when the lowest airflow volume among the plurality of airflow volumes is below a preset reference value. Therefore, it is possible to prevent insufficient ventilation in the plurality of spaces 22 while minimizing the number of communication connections from the management unit 4 to the control device 1.

[0085] The measuring device 3 may include, for example, the carbon dioxide concentration meter and airflow meter 3a described above. In this case, the management unit 4 generates output schedule information D30 based on the air volume and concentration measured for each of the multiple spaces 22. Furthermore, the reference values ​​used when evaluating each concentration include multiple reference concentrations that differ according to the air volume. For this reason, even if the reference value of the carbon dioxide concentration differs according to the air volume supplied to the space 22, it is possible to generate output schedule information D30 suitable for the state of the space 22.

[0086] The management unit 4 may generate the output schedule information D30 based on, for example, at least any one of the spatial information, external information, and performance information described above, and the measurement values ​​measured for each of the multiple spaces 22. In this case, the output schedule information D30 can be generated based on the different characteristics of each space 22.

[0087] In addition, the measuring device 3 may include one or more known measuring devices for measuring characteristics of the indoor environment in the space 22, such as a temperature sensor, a humidity sensor, a PM (Particulate Matter) sensor, a VOC (Volatile Organic Compound) sensor, an odor sensor, an ozone concentration sensor, an infrared sensor, a camera (imaging sensor), a power consumption meter, etc.

[0088] According to this embodiment, the management unit 4 generates new output schedule information D30n based on a plurality of measurement values ​​measured using a plurality of measuring devices 3. Therefore, it is possible to generate output schedule information D30 that takes into account the environmental characteristics of a plurality of spaces 22. This makes it possible to improve the accuracy of ventilation control.

[0089] Furthermore, according to this embodiment, the management unit 4 generates new output schedule information D30n when at least one of the multiple concentrations exceeds a preset reference value. Therefore, it is possible to prevent insufficient ventilation in the multiple spaces 22 while minimizing the number of communication connections from the management unit 4 to the control device 1. This makes it possible to easily perform appropriate ventilation control even in the case of an architectural structure 2 where communication connection failures are likely to occur.

[0090] Furthermore, according to this embodiment, the management unit 4 generates new output schedule information D30n based on the concentration and air volume measured for each of the multiple spaces 22. Furthermore, the reference value includes multiple reference concentrations that vary according to the air volume. Therefore, even if the reference value of the carbon dioxide concentration varies according to the air volume supplied to the space 22, it is possible to generate output schedule information D30 suitable for the environment of the space 22. This makes it possible to further improve the accuracy of ventilation control.

[0091] Furthermore, according to this embodiment, the management unit 4 generates new output schedule information D30n based on the space information and the measurement values. Therefore, it is possible to generate the output schedule information D30 taking into account the different characteristics of each space 22. This makes it possible to further improve the accuracy of ventilation control.

[0092] (Third embodiment: ventilation control system 100) Next, an example of the ventilation control system 100 in the third embodiment will be described. The difference between the above-mentioned embodiment and this embodiment is that a learning model is stored in the information storage unit of the management unit 4. Note that the description of the same contents as those in the above-mentioned embodiment will be omitted.

[0093] The learning model is constructed by machine learning using a plurality of pairs of learning data indicating, for example, previously acquired reference measurement values ​​and reference output schedule information associated with the reference measurement values. As the machine learning, a well-known learning method such as deep learning or SVM (Support Vector Machine) is used.

[0094] The reference measurement value indicates a measurement value measured in advance as learning data using the measuring device 3, and may include, for example, a plurality of measurement values. The reference output schedule information indicates optimal output schedule information D30 for the reference measurement value, and may be generated, for example, based on the result of controlling the blower 21 through advance verification. The control period included in the reference output schedule information may use, for example, a value set based on the communication environment of the architectural structure 2.

[0095] In this embodiment, the management unit 4 includes a generation unit that refers to the learning model and generates new output schedule information D30n based on the measurement values. That is, the generation unit can generate optimal output schedule information D30 for the multiple measurement values ​​received from the measurement device 3 by referring to the learning model.

[0096] In addition to the above, for example, when constructing a learning model, multiple sets of learning data indicating previously acquired reference spatial information, reference measurement values ​​linked to the reference spatial information, and reference output planned information linked to the reference measurement values ​​may be used.

[0097] The reference spatial information indicates spatial information acquired in advance as learning data, and may include, for example, a change history of the spatial information corresponding to the space 22. By using the reference spatial information as learning data, it is possible to improve the accuracy of the output schedule information D30 generated when referring to the learning model.

[0098] For example, when constructing a learning model, reference external information or reference performance information may be used instead of the above-mentioned reference spatial information. The reference external information indicates external information acquired in advance as learning data. The reference performance information indicates performance information acquired in advance as learning data. When constructing a learning model, the reference measurement value, the reference spatial information, the reference external information, and the reference performance information can be used as explanatory variables in any combination.

[0099] According to this embodiment, the generating unit included in the management unit 4 refers to the learning model and generates new output schedule information D30n based on the measurement value. Therefore, compared to the measurement value evaluation method using the reference value, it is easier to generate the output schedule information D30 that takes into account the fluctuation tendency of the measurement value, etc. This makes it possible to further improve the accuracy of ventilation control.

[0100] Moreover, according to this embodiment, the generating unit refers to the learning model and generates new output schedule information D30n based on the spatial information and the measured values. Therefore, compared to the evaluation method of the measured values ​​using the reference value, it is easier to generate the output schedule information D30 based on the characteristics of each space and the fluctuation tendency of the measured values. This makes it possible to further improve the accuracy of the ventilation control.

[0101] The above-mentioned management unit 4 is an electronic device equipped with a processor such as a CPU, a RAM, and a ROM, and executes the various processes described above. The management unit 4 also includes a data storage device such as a HDD (Hard Disk Drive), and stores various information.

[0102] Although an embodiment of the present invention has been described, this embodiment is presented as an example and is not intended to limit the scope of the invention. Such a novel embodiment can be implemented in various other forms, and various omissions, substitutions, and modifications can be made without departing from the spirit of the invention. This embodiment and its modifications are included in the scope and spirit of the invention, and are included in the invention and its equivalents described in the claims. [Explanation of symbols]

[0103] 1: Control device 10: Housing 11: Control section 12: Receiving section 13: Forced 14: Storage section 2: Architectural structure 21: Blower 22: Space 23: Duct 23a: Near the tip 3: Measuring equipment 3a: Air flow meter 4: Management Department 5: Communication network 100: Ventilation control system S110: Control step S120: Transmission step S130: Reception step S140: Forced control step WL: Wireless communication

Claims

1. A ventilation control system for controlling ventilation of a building structure using a central heat source system via wireless communication, A blower that blows air to a plurality of spaces in the architectural structure; a control device that controls the fan based on output schedule information indicating a future control condition of the fan; A management unit that transmits new output schedule information to the control device via the wireless communication; Equipped with When the control device does not receive the new output schedule information within a preset reception period, the control device controls the fan based on forcing information indicating a preset control condition of the fan. A ventilation control system comprising:

2. The forcing information indicates a condition for maintaining a maximum output of the blower. The ventilation control system according to claim 1 .

3. The output schedule information includes at least an operation period and a stop period of the blower. The ventilation control system according to claim 1 .

4. A measurement device is provided for each of the plurality of spaces, and the measurement device measures an environmental characteristic of the space. The management unit generates the new output schedule information based on a plurality of measurement values ​​measured using a plurality of the measuring devices. The ventilation control system according to any one of claims 1 to 3,

5. the measurement device includes a carbon dioxide concentration meter that measures a concentration of carbon dioxide in the space, The management unit generates the new output schedule information when at least one of the plurality of densities exceeds a preset reference value.

5. The ventilation control system according to claim 4,

6. The measuring device includes an air flow meter that measures the volume of air flowing into the space, The management unit generates the new output schedule information based on the concentration and the air volume measured for each of the plurality of spaces, The reference value includes a plurality of reference concentrations that differ according to the air volume.

6. The ventilation control system according to claim 5,

7. The management unit an information storage unit in which a learning model constructed by machine learning using a plurality of pairs of learning data indicating a reference measurement value acquired in advance and reference output schedule information associated with the reference measurement value is stored; A generation unit that generates the new output schedule information based on the measurement value by referring to the learning model; Contains 5. The ventilation control system according to claim 4,

8. The management unit generates the new output schedule information based on space information including at least one of a volume, a shape, and a capacity of the plurality of spaces and the measurement value.

5. The ventilation control system according to claim 4,

9. The management unit an information storage unit in which a learning model constructed by machine learning using a plurality of sets of learning data indicating previously acquired reference spatial information, reference measurement values ​​associated with the reference spatial information, and reference output schedule information associated with the reference measurement values ​​is stored; A generation unit that generates the new output schedule information based on the spatial information and the measurement value by referring to the learning model; Contains The ventilation control system according to claim 8 .

10. A ventilation control method for controlling ventilation of a building structure using a central heat source system via wireless communication, comprising: a control step of controlling the blower using a control device based on output schedule information indicating future control conditions of the blower that blows air to a plurality of spaces in the architectural structure; a transmission step of transmitting new output schedule information to the control device using a management unit via the wireless communication; a receiving step of determining whether the new output schedule information has been received within a preset receiving period; a forced control step of controlling the fan using the control device based on forced information indicating a preset control condition of the fan when the new output schedule information is not received during the reception period; To be prepared A ventilation control method comprising:

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