CN104956009A - Ventilation Controls, Ventilation Systems and Procedures - Google Patents

Abstract

In the ventilation control device, the ventilation path setting section sets the ventilation path using the environmental information acquired by the information acquisition section. The ventilation amount setting section sets a ventilation amount using the environmental information and the ventilation path. The ventilation path setting section sets a plurality of candidate paths having priorities in descending order of expected ventilation effect. When the first candidate route having the highest priority is the same as the previously set ventilation route, the ventilation route setting section sets the first candidate route as the ventilation route when a difference between the previously acquired room temperature and the currently acquired room temperature is equal to or greater than a threshold value. In a case where the difference is smaller than the threshold, the ventilation path setting section sets, as the ventilation path, a second candidate path that has a priority next to the first candidate path.

Description

Ventilation Controls, Ventilation Systems and Procedures

technical field

The present invention relates to a ventilation control device, a ventilation system and a program for controlling ventilation in a building.

Background technique

Conventionally, there is known a system (see, for example, Japanese Laid-Open Patent Publication No. 2012-122285, hereinafter referred to as "Document 1") configured to allow wind to flow from outside the building into the building so that wind existing in the building People inside the object (hereinafter referred to as "indoor people") can live in a comfortable environment.

The system described in Document 1 is configured to select a ventilation path in a building based on information such as wind direction and speed outside the building and outside air temperature, information such as room temperature inside the building, and information such as room temperature. Information such as the configuration and the position of the opening.

However, the conventional system described in Document 1 has a problem of selecting a ventilation path with a small actual ventilation effect when the difference between the expected ventilation effect and the actual ventilation effect is large. That is, the conventional system described in Document 1 may select a ventilation path whose actual ventilation effect is small although the expected ventilation effect is large.

Contents of the invention

The present invention has been made in view of the above problems, and an object of the present invention is to provide a ventilation control device, a ventilation system, and a program that can accurately set a ventilation path with a large actual ventilation effect.

According to a ventilation control device of the present invention, it is configured to set a ventilation path in a building and a ventilation rate of wind passing through the ventilation path at predetermined switching intervals, the ventilation control device includes: an information acquisition unit, It is configured to acquire environmental information including: weather information including wind-related information on wind blowing outside the building, air temperature and air humidity outside the building; and indoor environment information including room temperature and indoor humidity inside the building, wherein the air temperature outside the building is the outside air temperature, and the air humidity outside the building is the outside air humidity; a ventilation path setting section configured to The ventilation path is set by the environmental information acquired by the information acquisition unit; the ventilation volume setting unit is configured to be based on the environmental information acquired by the information acquisition unit and the ventilation path setting unit the ventilation path set to set the ventilation amount; and an output section configured to output the ventilation path set by the ventilation path setting section and the ventilation amount set by the ventilation amount setting section , wherein the ventilation path setting section is configured to: set a plurality of candidate paths with priorities in descending order of expected ventilation effects based on the environmental information; and prioritize among the plurality of candidate paths In the case where the first candidate path with the highest level is the same as the previously set ventilation path, when the difference between the room temperature previously acquired by the information acquisition unit and the room temperature currently acquired by the information acquisition unit is greater than a predetermined threshold , setting the first candidate path as the ventilation path, and if the difference is smaller than the predetermined threshold, the priority among the plurality of candidate paths is second only to the first candidate path The second candidate path is set as the ventilation path.

In this ventilation control device, preferably, the ventilation path setting unit is configured such that, with respect to the first candidate path, the number of times the difference is smaller than the predetermined threshold and the difference is smaller than the predetermined threshold reaches a predetermined number of times. After the number of times, the second candidate path is always set as the ventilation path.

In the ventilation control device, preferably, the ventilation control device further includes an opening control part configured to control the opening part based on the ventilation path and the ventilation amount output from the output part. A control device, wherein the opening control device is configured to control opening and closing of an opening formed in the building.

In the ventilation control device, preferably, the ventilation control device further includes: a state determination unit configured to determine, based on the ventilation path and the ventilation volume output from the output unit, that it is configured to assist a state of a ventilation assist device for ventilation on the ventilation path; and an auxiliary control section configured to control the ventilation assist device so that the ventilation assist device is in the state determined by the state determination section .

In the ventilation control device, preferably, the ventilation control device further includes: a first judging part configured to judge the difference between the room temperature obtained by the information obtaining part and the outside air temperature Whether the absolute value of the first difference of the absolute value is smaller than a first specified value; a second judging unit configured to, if the absolute value of the first difference is smaller than the first specified value, judge that the information Whether the second absolute value of the absolute value of the difference between the room temperature and the preset temperature on the ventilation path acquired by the acquiring unit is smaller than a second specified value; the third judging unit is configured to When the second absolute value of the difference is smaller than the second predetermined value, it is determined that the absolute value of the difference between the room temperature currently acquired by the information acquiring unit and the room temperature previously acquired by the information acquiring unit Whether the third absolute value of the difference is smaller than a third prescribed value; and a switching interval setting section configured to perform the following operation: in the case where the first absolute value of the difference is greater than or equal to the first prescribed value, at the If the second absolute value of the difference is greater than or equal to the second predetermined value, or if the third absolute value of the difference is greater than or equal to the third predetermined value, the switching intervals are each set to the first a period of time; and in a case where the absolute value of the third difference is smaller than the third prescribed value, setting the switching intervals to a second period of time longer than the first period of time, respectively.

A ventilation system according to the present invention includes: the ventilation control device described above; and an opening control device configured to control the opening and closing of the opening of the building through the control of the ventilation control device.

According to a program of the present invention for setting a ventilation path in a building and a ventilation amount of wind passing through the ventilation path at predetermined switching intervals, the program causes a computer to function as the following: a ventilation path setting section, It is configured to set the ventilation path based on environmental information acquired by the information acquiring unit, the environmental information including: weather information including wind-related information on wind blowing outside the building, and the Air temperature and air humidity outside the building; and indoor environment information, which includes room temperature and indoor humidity in the building, wherein the air temperature outside the building is the outside air temperature, and the air humidity outside the building is the outside air temperature air humidity; a ventilation amount setting section configured to set the ventilation amount based on the environmental information acquired by the information acquiring section and the ventilation path set by the ventilation path setting section; and an output section , which is configured to output the ventilation path set by the ventilation path setting section and the ventilation amount set by the ventilation amount setting section, wherein the program causes the computer to function as the ventilation path setting section to perform the following operations: setting a plurality of candidate paths with priorities in descending order according to the expected ventilation effect based on the environmental information; and the first candidate path with the highest priority among the plurality of candidate paths In the case of the same ventilation path, when the difference between the room temperature previously acquired by the information acquiring unit and the room temperature currently acquired by the information acquiring unit is greater than or equal to a predetermined threshold, the first candidate path is set as the the ventilation path, and in the case that the difference is smaller than the predetermined threshold, setting the second candidate path whose priority is second only to the first candidate path among the plurality of candidate paths as the ventilation path . The present invention is not limited to this program. The present invention may be a computer-readable recording medium in which the program is recorded.

According to the present invention, it is possible to accurately set a ventilation path having a large actual ventilation effect.

Description of drawings

Preferred embodiments of the present invention will now be described in further detail. Other features and advantages of the present invention will be better understood in relation to the following detailed description and accompanying drawings.

FIG. 1 is a block diagram showing the structure of a ventilation control device according to an embodiment.

FIG. 2 is a block diagram showing the structure of the ventilation system according to the embodiment.

FIG. 3 is a flow chart showing the operation of the ventilation control device according to the embodiment.

FIG. 4 is a flowchart illustrating a setting operation of a ventilation path of the ventilation control device according to the embodiment.

Detailed ways

In the ventilation system according to the embodiment described below, the ventilation control device is configured to set the ventilation state (ventilation path, ventilation amount) in the building at predetermined intervals (switching intervals).

First, in the case of setting a ventilation path, the ventilation control device is configured to set a plurality of candidate paths having priorities in descending order of expected ventilation effects. Secondly, in the case that the first candidate path with the highest priority is the same as the previously set ventilation path, the ventilation control device is configured not to use the first path when the difference between the previous room temperature and the current room temperature is less than a threshold As for the candidate path, the second candidate path whose priority is next to the first candidate path is set as the ventilation path.

That is, in the case where the current room temperature is approximately equal to the previous room temperature, the ventilation control device according to the present embodiment is configured to determine that the actual ventilation effect of the previously set ventilation path is small, and prevent the continuation of setting the ventilation path with a small ventilation effect. path.

In this embodiment, the ventilation path is set so that the wind passes through the space (for example, room, corridor, staircase) in the building from outside the building. The ventilation rate is the amount of wind passing through the ventilation path.

In this embodiment, the high ventilation effect means that people in the building can feel comfortable through the ventilation. Specifically, first, in the case where the difference between the room temperature before ventilation and the room temperature after ventilation is large, it is considered that the ventilation effect is high. In this case, it is considered preferable to consider a case where the room temperature before ventilation is higher than the body temperature of a person in the building and the room temperature after ventilation is lowered to a temperature close to body temperature. Next, the ventilation effect is considered to be high when the body-feeling temperature of the people in the building drops from the high temperature that the people in the building feel uncomfortable after ventilation. Again, when the indoor concentration of carbon dioxide drops from a very high state where people in the building feel uncomfortable after ventilation, it is considered that the ventilation effect is high. The inventors of the present invention consider that the ventilation effect is high in the case where any of these three cases occurs. On the other hand, if none of these three conditions occurs, the ventilation effect is low. Ineffective ventilation means that the people present in the building are not comfortable through the ventilation. Specifically, when the difference between the room temperature before ventilation and the room temperature after ventilation is small, the body temperature of people in the building does not drop, and the carbon dioxide in the room maintains a high state where people in the building feel uncomfortable, it is considered that The ventilation effect is low.

Hereinafter, the ventilation system according to the present embodiment will be described in detail with reference to the drawings.

As shown in FIG. 2 , the ventilation system according to this embodiment includes a ventilation control device 1 , a plurality of opening control devices 2 and a plurality of ventilation auxiliary devices 3 . The ventilation system also includes an anemometer 4 , a first temperature-hygrometer 5 , a second temperature-hygrometer 6 and an input device 7 .

Hereinafter, although a case where the ventilation system is used for a general detached house will be described as an example, the ventilation system can be used not only for a detached house but also for individual residents in a collective house, for example. This ventilation system can be used in offices, shops, facilities or factories etc.

Each opening control device 2 is configured to control opening and closing of an opening 81 formed in a building 8 . Each opening control device 2 is, for example, a window opening and closing device configured to open and close a window serving as the opening 81 by operating an accessory (window glass, window blind, etc.), or a window opening and closing device configured to open and close a window serving as the opening 81 by operating a door. The door opening and closing device for opening and closing the entrance and exit of the part 81. Examples of the door include an entrance door arranged at an entrance and a door arranged inside the building 8 . Each opening control device 2 is controlled by the ventilation control device 1 .

The anemometer 4 is installed outside the building 8 . The anemometer 4 is configured to measure the direction (wind direction) and speed (wind speed) of wind blowing outside the building 8 .

The first temperature-hygrometer 5 is installed outside the building 8 . The first thermo-hygrometer 5 is configured to measure the air temperature outside the building 8 (outside air temperature) and the humidity outside the building 8 (outside air humidity).

The second temperature-hygrometer 6 is installed in the building 8 . The second thermo-hygrometer 6 is configured to measure the air temperature (room temperature) inside the building 8 and the humidity inside the building 8 (indoor humidity).

The input device 7 is used, for example, when a person present in the building 8 (hereinafter referred to as "indoor person") inputs an instruction to the ventilation control device 1 . The input device 7 is configured to receive an input of a preset temperature (target temperature) in the building 8 , for example, through an input operation by a person in the room. The input device 7 can also be configured to receive input of various indications other than the preset temperature.

The ventilation control device 1 is, for example, a controller including a computer (including a microcomputer) mounted with a CPU (Central Processing Unit) and a memory as main components. As shown in FIG. 1 , the ventilation control device 1 includes an information acquisition unit 11 , a preset temperature acquisition unit 12 , a storage unit 13 and an arithmetic processing unit 14 .

The information acquiring section 11 is configured to acquire environmental information (environmental data). The environmental information (environmental data) includes weather information (weather data) and indoor environment information (indoor environment data). The weather information (weather data) includes wind-related information (wind-related data) and the air temperature and air humidity outside the building 8 . The wind-related information is information about the wind blowing outside the building 8, and includes the wind direction and wind speed of the wind. The indoor environment information includes room temperature and indoor humidity in the building 8 .

The information acquisition unit 11 includes a first acquisition unit (wind-related information acquisition unit) 111 , a second acquisition unit (outside air temperature and humidity acquisition unit) 112 , and a third acquisition unit (indoor air temperature and humidity acquisition unit) 113 .

The first acquiring unit 111 includes an interface unit (not shown) for connecting with the anemometer 4 . The first obtaining part 111 is configured to obtain the measurement result of the anemometer 4 from the anemometer 4 connected to the interface part. For example, the first acquisition section 111 is configured to acquire measurement results from the anemometer 4 at a period shorter than the switching interval for setting the ventilation state. Then, the first acquisition section 111 is configured to select the wind direction with the highest frequency based on the distribution of the wind directions acquired within a period (period) from the time point when the previous ventilation state was set. The first acquisition part 111 is configured to calculate an average value of wind speeds acquired within a period (time period) from the time point when the previous ventilation path and the previous ventilation volume were set. Therefore, the first acquiring section 111 can acquire the selected wind direction and the calculated wind speed (average value) as wind-related information. Instead of cables, the first acquisition section 111 may acquire wind-related information from the anemometer 4 by wireless communication using radio waves as a transmission medium.

The second acquisition part 112 includes an interface part (not shown) for connecting with the first temperature-hygrometer 5 . The second obtaining part 112 is configured to obtain the measurement result of the first temperature-hygrometer 5 from the first temperature-hygrometer 5 connected to the interface part. That is to say, the second acquiring unit 112 is configured to acquire the outside air temperature and the outside air humidity from the first temperature-hygrometer 5 . Instead of a cable, the second acquisition section 112 may acquire the outside air temperature and the outside air humidity from the first temperature-hygrometer 5 by wireless communication using radio waves as a transmission medium.

The third acquisition part 113 includes an interface part (not shown) for connecting with the second temperature-hygrometer 6 . The third obtaining part 113 is configured to obtain the measurement result of the second temperature-hygrometer 6 from the second temperature-hygrometer 6 connected to the interface part. That is to say, the third obtaining unit 113 is configured to obtain indoor environment information from the second temperature-hygrometer 6 . Instead of cables, the third acquisition section 113 may acquire indoor environment information from the second temperature-hygrometer 6 by wireless communication using radio waves as a transmission medium.

The preset temperature acquisition part 12 includes an interface part (not shown) for connecting with the input device 7 . The preset temperature acquisition section 12 is configured to acquire, from the input device 7 connected to the interface section, a preset temperature input by performing an input operation on the input device 7 . Instead of a cable, the preset temperature acquisition section 12 may acquire the preset temperature from the input device 7 by wireless communication using electric waves as a transmission medium.

The storage unit 13 includes a first storage unit (weather information history storage unit) 131 , a second storage unit (indoor environment information history storage unit) 132 and a third storage unit (control log storage unit) 133 .

The first storage unit 131 is configured to store a history of wind-related information previously acquired by the first acquisition unit 111 . Whenever the first acquisition unit 111 acquires wind-related information, the wind-related information is stored in the first storage unit 131 in association with the acquisition date and acquisition time under the control of the arithmetic processing unit 14 . The first storage unit 131 is configured to store the history of the outside air temperature and the outside air humidity previously acquired by the second acquisition unit 112 . Whenever the second acquisition unit 112 acquires the outside air temperature and the outside air humidity, the outside air temperature and the outside air humidity are stored in the first storage unit 131 in a manner associated with the acquisition date and the acquisition time through the control of the arithmetic processing unit 14 middle.

The second storage unit 132 is configured to store the history of the indoor environment information previously acquired by the third acquisition unit 113 . Whenever the third acquiring unit 113 acquires the indoor environment information, the indoor environment information is stored in the second storage unit 132 in a manner associated with the acquisition date and acquisition time under the control of the arithmetic processing unit 14 .

The third storage unit 133 is configured to store a history of control contents of each opening control device 2 , that is, a control log under the control of the arithmetic processing unit 14 . Whenever the opening control unit 144 of the calculation processing unit 14 controls each opening control device 2 according to the control content of each opening control device 2, the control content is related to the control date and control time by the control of the calculation processing unit 14. The linked format is stored in the third storage unit 133.

The arithmetic processing unit 14 includes a ventilation path setting unit 141 , a ventilation amount setting unit 142 , an output unit 143 , and an opening control unit 144 . The arithmetic processing unit 14 further includes a state determination unit 145 and an assist control unit 146 . The arithmetic processing section 14 further includes a first judging section 151 , a second judging section 152 , a third judging section 153 , and a switching interval setting section 154 . The arithmetic processing unit 14 can execute various programs to perform various processing. These various programs are stored in the storage unit 13 .

The ventilation path setting part 141 is configured to set a ventilation path in the building 8 based on the environmental information acquired by the information acquiring part 11 and the history information stored in the storage part 13 . The ventilation path setting section 141 of the present embodiment is configured to set a ventilation path in the building 8 by executing a ventilation path setting program for setting a ventilation path. In the case of executing the ventilation path setting program, building information on the arrangement of rooms in the building 8 (including the positions of the openings 81 ) is input into the storage unit 13 in advance. The ventilation path setting program is stored in the storage unit 13 .

The ventilation volume setting unit 142 is configured to set the ventilation route setting unit 141 based on the environmental information acquired by the information acquiring unit 11, the ventilation route set by the ventilation route setting unit 141 and the history information stored in the storage unit 13. The ventilation volume of the wind in the set ventilation path. The ventilation amount setting section 142 of the present embodiment is configured to set the ventilation amount on the ventilation path by executing a ventilation amount setting program for setting the ventilation amount. In the case of executing the ventilation rate setting program, building information on the arrangement of rooms in the building 8 (including the positions of the openings 81 ) is input in advance. This ventilation rate setting program is stored in the storage unit 13 . The ventilation amount setting section 142 has a function as a timer configured to time the switching interval. The switching interval time period is the time period between the previous switching moment and the current switching moment. The switching timing is a predetermined time point within a predetermined time period from the time point when the ventilation path and the ventilation amount are set. The predetermined time point includes a time point when the ventilation path and the ventilation volume are set. That is, the predetermined time point may be a time point when the ventilation path and the ventilation amount are set, and a specific time point within a predetermined time period from the time point when the ventilation path and the ventilation amount are set. The timer is configured to count an elapsed period of time from a predetermined point of time.

The output part 143 is configured to output the ventilation path set by the ventilation path setting part 141 and the ventilation amount set by the ventilation amount setting part 142 to the opening control part 144 .

The opening control section 144 is configured to determine the control content of each opening section control device 2 based on the output of the ventilation path and the ventilation amount from the output section 143 . The opening control unit 144 is configured to determine the control content of each opening control device 2 so that a ventilation path through which the wind of the ventilation volume passes can be actually formed in the building 8 . Then, the opening control unit 144 is configured to control each opening control device 2 according to the control content.

In the arithmetic processing section 14, the ventilation path setting section 141 is configured to execute the ventilation path setting program to set the ventilation path by the following operations. First, the ventilation path setting section 141 sets a plurality of candidate paths with priorities in descending order of expected ventilation effects based on the environmental information acquired by the information acquiring section 11 . Next, when the first candidate path with the highest priority among the plurality of candidate paths is the same as the previously set ventilation path, the room temperature T2 previously acquired by the information acquisition unit 11 and the room temperature T1 currently acquired by the information acquisition unit 11 When the difference ( T2 - T1 ) between them is greater than or equal to the predetermined value δ1 , the ventilation path setting unit 141 is configured to set the first candidate path as the ventilation path. On the other hand, in this case, in the case where the difference (T2-T1) is smaller than the threshold value δ1, the ventilation route setting section 141 is configured to rank the priority of the plurality of candidate routes next to that of the first candidate route. The second candidate path of priority is set as the ventilation path.

After the difference (T2-T1) with respect to the first candidate path with the highest priority is smaller than the threshold value δ1 and the result reaches a predetermined number of times, the ventilation path setting section 141 of the present embodiment is configured to always set the second candidate path as the ventilation path. path.

Incidentally, in the case where a sufficient amount of ventilation is not obtained by the ventilation paths set by the ventilation path setting portion 141 , it is necessary to operate a plurality of ventilation assisting devices 3 to perform forced ventilation.

Examples of each ventilation auxiliary device 3 include a fan (ventilation fan 31 , ceiling fan 32 ) and an air conditioner 33 . Each ventilation assisting device 3 is configured to assist ventilation on the ventilation path provided by the ventilation path setting section 141 . The ventilating fan 31 is arranged, for example, in a kitchen or a bathroom in the building 8 . The ceiling fan 32 is arranged, for example, on the ceiling of a room or above stairs in the building 8 . The air conditioner 33 is arranged in a room in the building 8 .

The state determining section 145 is configured to determine the state of each ventilation assisting device 3 based on the ventilation path and the ventilation amount output from the output section 143 .

The assist control section 146 is configured to control each ventilation assist device 3 to be in the state of each ventilation assist device 3 determined by the state determination section 145 . Each ventilation assist device 3 is configured to operate under the control of the assist control unit 146 .

The third storage section 133 of the present embodiment is configured to store not only the history of the control content of each opening portion control device 2 but also the history of the state of each ventilation assisting device 3 . Every time the assist control unit 146 controls each ventilation assist device 3 , the state of each ventilation assist device 3 is stored in the third storage unit 133 in association with the control date and control time by the control of the arithmetic processing unit 14 .

Incidentally, since the wind direction and wind speed are changing all the time, the ventilation control device 1 needs to switch the ventilation state (ventilation path, ventilation volume) according to the change of wind direction and wind speed. The switching interval for switching the ventilation state of the ventilation control device 1 is about 10 minutes.

However, if the ventilation state is switched for a shorter period of time than necessary, the discomfort of the occupants may increase. On the contrary, even if the switching interval of the ventilation state becomes longer, the room temperature may not reach the preset temperature, or the room temperature may exceed the preset temperature, which may cause a decrease in comfort of the occupants.

Then, the ventilation control device 1 according to the present embodiment can switch the switching interval of the ventilation state (ventilation path, ventilation amount) according to the following determination conditions without making the switching interval constant.

The first judging part 151 is configured to compare the room temperature (current room temperature T1 ) acquired by the information acquiring part 11 with the outside air temperature (current outside air temperature T3 ). The first determination unit 151 is configured to determine whether the absolute value of the difference between the current room temperature T1 and the current outside air temperature T3 (hereinafter referred to as "first absolute value of difference") |T1-T3| is smaller than the first prescribed value A1.

The second judging unit 152 is configured to compare the room temperature (current room temperature T1) acquired by the information acquiring unit 11 with the room temperature on the ventilation path when the first difference absolute value |T1-T3| is smaller than the first specified value A1. Preset temperature T4 for comparison. The second determination unit 152 is configured to determine whether the absolute value of the difference between the current room temperature T1 and the preset temperature T4 (hereinafter referred to as "second absolute value of difference") |T1-T4| is smaller than the second predetermined value A2.

The third judging unit 153 is configured to compare the room temperature (current room temperature T1) acquired by the information acquiring unit 11 with the second storage unit’s room temperature when the second difference absolute value |T1-T4| is smaller than the second specified value A2. 132 for comparison with the previously acquired room temperature T2 stored in 132 . The third judging part 153 is configured to judge whether the absolute value of the difference between the current room temperature T1 and the previous room temperature T2 (hereinafter referred to as "third absolute difference value") |T1-T2| is smaller than a third prescribed value A3.

The switching interval setting section 154 is configured to set the switching interval of the ventilation state (ventilation path, ventilation amount), that is, the next control start timing. In the case where the first difference absolute value |T1-T2| is greater than or equal to the first prescribed value A1, the switching interval setting section 154 is configured to set the switching interval to a first time period. That is, in this case, the switching interval setting section 154 will set the next switching time after the first period of time has elapsed from the current switching time. Furthermore, in the case where the second difference absolute value |T1-T3| is greater than or equal to the second prescribed value A2, the switching interval setting section 154 is configured to set the switching interval as the first time period. Furthermore, in the case where the third difference absolute value |T1-T4| is greater than or equal to the third prescribed value A3, the switching interval setting section 154 is configured to set the switching interval as the first time period.

On the other hand, in the case where the third difference absolute value |T1-T4| is smaller than the third prescribed value A3, the switching interval setting section 154 is configured to set the switching interval to the second time period. That is, in this case, the switching interval setting section 154 will set the next switching time after the second period of time has elapsed from the current switching time. A time period longer than the first time period is adopted as the second time period.

That is, the ventilation control device 1 is configured to be any one of the first difference absolute value |T1-T2|, the second difference absolute value |T1-T3|, and the third difference absolute value |T1-T4| When the absolute value of the difference is equal to or greater than a predetermined value (the first predetermined value A1, the second predetermined value A2, and the third predetermined value A3), the switching interval is relatively shortened. On the other hand, the ventilation control device 1 is configured such that the first difference absolute value |T1-T2|, the second difference absolute value |T1-T3|, and the third difference absolute value |T1-T4| In the case of , the switching interval is relatively extended.

Incidentally, the storage section 13 is configured to store not only a history of climate information, a history of indoor environment information, and a control log, but also various kinds of information as necessary.

The storage unit 13 is configured to store programs for causing the ventilation control device (computer) 1 to perform various functions. That is, the storage unit 13 is configured to store the ventilation control device 1 as the ventilation path setting unit 141, the ventilation amount setting unit 142, the output unit 143, the opening control unit 144, the state determination unit 145, the auxiliary control unit 146, the second Programs of a judging section 151 , a second judging section 152 , a third judging section 153 and a switching interval setting section 154 . This program is stored in advance in the storage unit 13 when the ventilation control device 1 is shipped. However, in the case where the ventilation control device 1 acquires the program after shipment, as an example of a technique by which the ventilation control device 1 acquires the program, there is a technique using a computer-readable recording medium storing the program. In the case of using the technology of the computer-readable recording medium, the ventilation control device 1 only needs to include a reader (not shown) for reading data in the recording medium. Examples of recording media include optical disks and memory cards. Examples of readers include drives configured to read information on optical discs and memory card readers configured to read information from memory cards. As another technique by which the ventilation control device 1 acquires the program, there is a technique in which the ventilation control device 1 downloads the program from another device (for example, a server) via a network. In the case of the technique of downloading the program via the network, the ventilation control device 1 only needs to have a communication function for communicating with the above-mentioned other devices via the network.

Next, a ventilation control method using the ventilation control device 1 according to the present embodiment will be described with reference to FIG. 3 . This ventilation control method is realized by executing a program stored in the storage unit 13 of the ventilation control device 1 .

First, the information acquiring unit 11 acquires environmental information (S1). Next, the ventilation path setting part 141 of the arithmetic processing part 14 sets a ventilation path based on the environmental information acquired in step S1 and the history information stored in the storage part 13 (S2).

Here, the setting operation of the ventilation path will be described in detail with reference to FIG. 4 . In step S21 , the ventilation path setting section 141 sets a plurality of candidate paths having priorities in descending order of expected ventilation effects ( S21 ).

In the case where the first candidate path with the highest priority among the plurality of ventilation paths is not the same as the previously set ventilation path (NO in S22), the ventilation path setting section 141 sets the first candidate path as the ventilation path ( S24).

On the other hand, in the case where the first candidate route is the same as the previously set ventilation route (YES in S22), the difference (T2-T1) between the previous room temperature T2 and the current room temperature T1 is the threshold value δ1 In the above case (NO in S23), the ventilation path setting unit 141 sets the first candidate path as the ventilation path (S24).

On the other hand, when the difference ( T2 - T1 ) is smaller than the threshold value δ1 (YES in S23 ), the ventilation path setting section 141 sets the priority of the plurality of ventilation paths next to that of the first candidate path. The second candidate path is set as the ventilation path (S25).

As shown in FIG. 3 , after step S2, the ventilation rate setting unit 142 of the calculation processing unit 14 is based on the environmental information acquired in step S1, the ventilation path set in step S2 and the historical information stored in the storage unit 13. to set the ventilation rate (S3).

Then, the state determination part 145 of the arithmetic processing part 14 determines the state of each ventilation assisting device 3 based on the ventilation path set in step S2 and the ventilation amount set in step S3 (S4). When the operation of each ventilation assist device 3 is not required, the state determination unit 145 determines the state of each ventilation assist device 3 as an OFF (closed) state.

And the opening control part 144 of the arithmetic processing part 14 controls each opening part control apparatus 2 based on the ventilation path set in step S2 and the ventilation amount set in step S3 (S5). The assist control unit 146 of the arithmetic processing unit 14 controls each ventilation assist device 3 so as to be in the state determined in step S4.

Then, the first judgment unit 151 judges whether the first difference absolute value |T1-T2| is smaller than the first predetermined value A1 (S6). When the first difference absolute value |T1-T2| Two specified values A2 (S7). When the second absolute value of difference |T1-T3| Three ratings A3(S8).

In step S6, when the first difference absolute value |T1-T2| is greater than or equal to the first predetermined value A1 ("No" in S6), the switching interval setting part 154 of the arithmetic processing part 14 sets the switching interval to is the first time period (S9). In step S7, when the second difference absolute value |T1-T3| part. In a case where the third difference absolute value |T1-T4| is also greater than or equal to the third prescribed value A3 (NO in S8), the switching interval setting section 154 sets the switching interval to the first time period.

On the other hand, in the case where the third difference absolute value |T1-T4| is smaller than the third prescribed value A3 (YES in S8), the switching interval setting section 154 sets the switching interval to be longer than the first time period The second period of time (S10).

Then, after a first period of time has elapsed from a predetermined time point within a predetermined time period from the time point at which the ventilation path and ventilation amount were set in steps S2 and S3 (YES in S11), the ventilation control device 1 returns to Go to step S1 and perform an operation for switching the ventilation state. Further, after the second period of time has elapsed from the predetermined time point (YES in S12), the ventilation control device 1 returns to step S1 and performs an operation for switching the ventilation state.

The ventilation control device 1 according to the present embodiment described above is configured to set the ventilation path in the building 8 and the ventilation amount of the wind passing through the ventilation path at predetermined switching intervals. The ventilation control device 1 includes an information acquisition part 11 , a ventilation path setting part 141 , a ventilation amount setting part 142 and an output part 143 . The information acquiring section 11 is configured to acquire environmental information. Environmental information includes weather information and indoor environment information. The weather information includes wind-related information, as well as air temperature and air humidity outside the building 8 . The air temperature outside the building 8 is the outside air temperature. The air humidity outside the building 8 is the outside air humidity. The wind related information is information related to the wind blowing outside the building 8 . The indoor environment information includes room temperature and indoor humidity in the building 8 . The ventilation path setting part 141 is configured to set the ventilation path based on the environmental information acquired by the information acquiring part 11 . The ventilation amount setting section 142 is configured to set the ventilation amount based on the environmental information acquired by the information acquiring section 11 and the ventilation path set by the ventilation path setting section 141 . The output part 143 is configured to output the ventilation path set by the ventilation path setting part 141 and the ventilation amount set by the ventilation amount setting part 142 . The ventilation path setting section 141 is configured to set a plurality of candidate paths based on environmental information. The plurality of candidate paths have priorities in descending order of expected ventilation effects. In the case that the first candidate path with the highest priority among the plurality of candidate paths is the same as the previously set ventilation path, between the room temperature T2 previously acquired by the information acquisition unit 11 and the room temperature T1 currently acquired by the information acquisition unit 11 When the difference ( T2 - T1 ) between is greater than or equal to the predetermined threshold δ1 , the ventilation path setting unit 141 is configured to set the first candidate path as the ventilation path. On the other hand, in this case, when the difference (T2-T1) is smaller than the threshold value δ1, the ventilation route setting section 141 is configured to prioritize the second route after the first candidate route among the plurality of candidate routes. Candidate paths are set as ventilation paths.

The ventilation system includes a ventilation control device 1 and an opening control device 2 . The opening control device 2 is configured to control the opening and closing of the opening 81 of the building 8 through the control of the ventilation control device 1 .

The program is for setting the ventilation path in the building 8 and the ventilation amount of the wind passing through the ventilation path at predetermined switching intervals. This program makes the computer function as the ventilation path setting section 141 , the ventilation amount setting section 142 and the output section 143 . The ventilation path setting part 141 is configured to set the ventilation path based on the environmental information acquired by the information acquiring part 11 . Environmental information includes weather information and indoor environment information. The weather information includes wind-related information, as well as air temperature and air humidity outside the building 8 . The air temperature outside the building 8 is the outside air temperature. The air humidity outside the building 8 is the outside air humidity. The wind related information is information related to the wind blowing outside the building 8 . The indoor environment information includes room temperature and indoor humidity in the building 8 . The ventilation amount setting section 142 is configured to set the ventilation amount based on the environmental information acquired by the information acquiring section 11 and the ventilation path set by the ventilation path setting section 141 . The output part 143 is configured to output the ventilation path set by the ventilation path setting part 141 and the ventilation amount set by the ventilation amount setting part 142 . This program causes the computer to perform the following operations as the ventilation path setting unit 141 . The ventilation path setting section 141 is configured to set a plurality of candidate paths based on environmental information. The plurality of candidate paths have priorities in descending order of expected ventilation effects. In the case that the first candidate path with the highest priority among the plurality of candidate paths is the same as the previously set ventilation path, between the room temperature T2 previously acquired by the information acquisition unit 11 and the room temperature T1 currently acquired by the information acquisition unit 11 When the difference ( T2 - T1 ) between is greater than or equal to the predetermined threshold δ1 , the ventilation path setting unit 141 is configured to set the first candidate path as the ventilation path. On the other hand, in this case, when the difference (T2-T1) is smaller than the threshold value δ1, the ventilation route setting section 141 is configured to prioritize the second route after the first candidate route among the plurality of candidate routes. Candidate paths are set as ventilation paths.

In the ventilation system according to the present embodiment described above, the ventilation control device 1 is configured to set the previously obtained room temperature T2 and the currently obtained When the difference (T2-T1) between the temperature T1 is less than the threshold δ1, not the first candidate path but the second candidate path whose priority is next to the first candidate path is set as the ventilation path. Therefore, in the ventilation control device 1 according to the present embodiment, in the case where the first candidate path whose actual ventilation effect is small although the first candidate path with a large expected ventilation effect has been previously set as the ventilation path, the first candidate path with a small actual ventilation effect is replaced. Candidate path, currently sets the second candidate path as the ventilation path. As a result, it is possible to accurately set a ventilation path whose actual ventilation effect is large. That is, it is possible to confirm the actual ventilation effect and set an appropriate ventilation path. For example, even if there is no information on the detailed room layout of the building 8 (including the positions of the openings 81), it is possible to confirm the actual ventilation effect and set an appropriate ventilation path.

Like this embodiment, the ventilation path setting unit 141 is preferably configured to always set the second candidate path as the ventilation path after the difference (T2-T1) is smaller than the threshold δ1 and the result reaches a predetermined number of times with respect to the first candidate path.

In the ventilation system according to the present embodiment, the ventilation control device 1 is configured as the difference (T2-T1) between the previously acquired room temperature T2 and the currently acquired room temperature T1 in the first candidate path with the highest priority After a predetermined number of times less than the threshold δ1, the second candidate path whose priority is only next to the first candidate path is always set as the ventilation path. Therefore, in the ventilation control device 1 according to the present embodiment, it is possible to definitely exclude a ventilation path whose actual ventilation effect is small.

The ventilation path setting section 141 is preferably configured to always set the second candidate path as the ventilation path after the difference ( T2 − T1 ) is smaller than the threshold δ1 with respect to the first candidate path and the result reaches a predetermined number of times.

In the ventilation system according to the present embodiment, the ventilation control device 1 is configured to control the opening section control device 2 configured to control opening and closing of the opening section 81 based on the ventilation path and ventilation amount output from the output section 143 . Therefore, in the ventilation control device 1 according to the present embodiment, since the opening 81 can be automatically opened and closed, ventilation can be easily performed compared to the case where the opening 81 is manually opened and closed.

The ventilation control device 1 further includes a state determination unit 145 and an auxiliary control unit 146 . The state determining section 145 is configured to determine the state of the ventilation assisting device 3 from the ventilation path and the ventilation amount output from the output section 143 . The ventilation assist device 3 is configured to assist ventilation on this ventilation path. The assist control section 146 is configured to control the ventilation assist device 3 so that the ventilation assist device 3 is in the state determined by the state determination section 145 .

In the ventilation control system according to the present embodiment, the ventilation control device 1 is configured to control the air flow configured on the auxiliary ventilation path according to the ventilation path set by the ventilation path setting section 141 and the ventilation amount set by the ventilation amount setting section 142 . Ventilation aids 3. Therefore, in the ventilation control device 1 according to the present embodiment, even if sufficient ventilation cannot be obtained with the currently provided ventilation paths, each ventilation assisting device 3 can be operated to promote ventilation. As a result, comfort is enhanced through ventilation, even in windless conditions.

Preferably, the ventilation control device 1 further includes a first determination unit 151 , a second determination unit 152 , a third determination unit 153 and a switching interval setting unit 154 . The first judgment part 151 is configured to judge whether the first difference absolute value |T1-T3| . The second judging unit 152 is configured to judge the room temperature T1 acquired by the information acquiring unit 11 and the preset temperature on the ventilation path when the first difference absolute value |T1-T3| is smaller than the first specified value A1 Whether the second absolute difference |T1-T4| of the absolute difference between T4 is smaller than the second specified value A2. The third determination unit 153 is configured to determine that the room temperature T1 currently acquired by the information acquisition unit 11 is the same as the room temperature T1 previously acquired by the information acquisition unit 11 when the second absolute value of the difference |T1-T4| is smaller than the second predetermined value A2. Whether the third absolute value of the difference |T1-T2| of the absolute value of the difference between the room temperature T2 is smaller than the third predetermined value A3. The switching interval setting section 154 is configured to be equal to or greater than the second predetermined value A2 when the second absolute value |T1-T4| In the case of , or in the case of the third difference absolute value |T1-T2| is greater than or equal to the third predetermined value A3, each predetermined interval is set as the first time period. On the other hand, the switching interval setting section 154 is configured to set each predetermined interval to a second time longer than the first time period in the case where the third difference absolute value |T1-T2| is smaller than the third prescribed value A3 part.

In the ventilation system according to the present embodiment, the ventilation control device 1 is configured such that the first difference absolute value |T1-T2|, the second difference absolute value |T1-T3|, or the third difference absolute value |T1 When - T4 | is equal to or greater than a predetermined value (the first predetermined value A1 to the third predetermined value A3 ), the switching interval is made relatively short. On the other hand, the ventilation control device 1 according to the present embodiment is configured such that the first difference absolute value |T1-T2|, the second difference absolute value |T1-T3|, and the third difference absolute value |T1- When all of T4 | are smaller than the predetermined values A1 to A3, the switching interval is made relatively long. Therefore, in the ventilation control device 1 according to the present embodiment, switching intervals can be as long as possible while maintaining a temperature environment in which people (insiders) existing in the building 8 do not feel uncomfortable as necessary. ventilation. As a result, energy saving and comfort through ventilation can be improved without causing discomfort to indoor occupants due to frequent switching.

In this embodiment, the first acquiring section 111 of the information acquiring section 11 is configured to acquire wind-related information from the anemometer 4 . However, as a modification of the present embodiment, the first acquiring section 111 may be configured to acquire wind-related information from an external device (not shown). The external device should, for example, only be a device configured to periodically acquire and maintain wind-related information.

In this embodiment, the second acquisition unit 112 of the information acquisition unit 11 is configured to acquire the outside air temperature and the outside air humidity from the first temperature-hygrometer 5 installed outside the building 8 . However, as a modification of the present embodiment, the second acquiring unit 112 may be configured to acquire the outside air temperature and the outside air humidity from an external device (not shown). The external device may be, for example, a device configured to periodically acquire the outside air temperature and outside air humidity.

In this embodiment, the third acquisition unit 113 of the information acquisition unit 11 is configured to acquire indoor environment information from the second temperature-hygrometer 6 installed in the building 8 . However, as a modification of the present embodiment, the third acquiring section 113 may be configured to acquire indoor environment information from an external device (not shown). The external device may be, for example, a device configured to periodically acquire indoor environment information.

As a modification of the present embodiment, the output section 143 may be configured to output the currently set ventilation state (ventilation path, ventilation volume) not only to the opening control section 144 and the auxiliary control section 146 but also to the reporting device 9 . In the case of the present modification, the reporting device 9 is configured to report the ventilation state output from the output unit 143 . Therefore, the currently set ventilation state can be reported to the indoor occupants. The reporting device 9 configured to report the ventilation status may be a display device configured to display the ventilation status on its screen, and may be a sound output device configured to output the ventilation status by sound. The sound output device is, for example, a speaker.

In the present embodiment, the opening control section 144 is configured to control a plurality of opening section control devices 2 . However, as a modification of the present embodiment, the output unit 143 may be configured to output the currently set ventilation state (ventilation path, ventilation amount) to a management device (not shown) configured to manage a plurality of opening control devices 2 . ). In the present modification, if the ventilation state is acquired from the output unit 143, the management device is configured to determine the control content of each opening portion control device 2 based on the ventilation state. Then, the management device is configured to control each opening portion control device 2 according to the control content.

In the present embodiment, the ventilation amount setting section 142 has a function as a timer. However, as a modified example of the present embodiment, configurations other than the ventilation amount setting portion 142 in the ventilation control device 1 may also have a function as a timer.

Although the invention has been described in several preferred embodiments thereof, those skilled in the art will appreciate that various modifications and changes can be made without departing from the true spirit and scope of the invention, namely the claims.

Claims (7)

1. A ventilation control device configured to set a ventilation path in a building and a ventilation rate of wind passing through the ventilation path at predetermined switching intervals, the ventilation control device comprising: an information acquisition section configured to acquire environmental information including weather information including wind-related information on wind blowing outside the building, and air temperature and air humidity outside the building and indoor environment information, which includes room temperature and indoor humidity in the building, wherein the air temperature outside the building is the outside air temperature, and the air humidity outside the building is the outside air humidity; a ventilation path setting unit configured to set the ventilation path based on the environmental information acquired by the information acquiring unit; a ventilation amount setting section configured to set the ventilation amount based on the environmental information acquired by the information acquiring section and the ventilation path set by the ventilation path setting section; and an output section configured to output the ventilation path set by the ventilation path setting section and the ventilation amount set by the ventilation amount setting section, Wherein, the ventilation path setting unit is configured to perform the following operations: setting a plurality of candidate paths having priorities in descending order of expected ventilation effects based on the environmental information; and In the case that the first candidate path with the highest priority among the plurality of candidate paths is the same as the previously set ventilation path, between the room temperature previously acquired by the information acquisition unit and the room temperature currently acquired by the information acquisition unit When the difference between them is above a predetermined threshold, the first candidate path is set as the ventilation path, and when the difference is smaller than the predetermined threshold, the priority among the plurality of candidate paths is A second candidate path next to the first candidate path is set as the ventilation path. 2 . The ventilation control device according to claim 1 , wherein the ventilation path setting unit is configured such that, with respect to the first candidate path, the difference is smaller than the predetermined threshold and the difference is smaller than the predetermined threshold. After the number of times of the predetermined threshold reaches a predetermined number of times, the second candidate path is always set as the ventilation path. 3. The ventilation control device according to claim 1 or 2, further comprising an opening control part configured to be based on the ventilation path and the ventilation path output from the output part. A quantity is used to control an opening control device, wherein the opening control device is configured to control opening and closing of an opening formed in the building. 4. The ventilation control device according to claim 3, further comprising: a state determination section configured to determine a state of a ventilation assist device configured to assist ventilation on the ventilation path based on the ventilation path and the ventilation amount output from the output section; and An auxiliary control section configured to control the ventilation assist device so that the ventilation assist device is in the state determined by the state determination section. 5. The ventilation control device according to any one of claims 1 to 4, further comprising: A first judging unit configured to judge whether a first absolute value of the difference representing an absolute value of the difference between the room temperature and the outside air temperature acquired by the information acquiring unit is smaller than a first prescribed value; The second judging unit is configured to, when the absolute value of the first difference is smaller than the first specified value, judging that the room temperature acquired by the information acquiring unit and the temperature on the ventilation path Whether the second absolute value of the difference between the absolute values of the differences between the preset temperatures is smaller than the second specified value; The third judging unit is configured to judge that the room temperature currently acquired by the information acquiring unit is the same as the room temperature previously acquired by the information acquiring unit when the absolute value of the second difference is smaller than the second specified value. Whether the third absolute value of the difference between the room temperature of the absolute value of the difference is less than the third specified value; and a switching interval setting unit configured to perform the following operations: When the absolute value of the first difference is greater than or equal to the first predetermined value, when the absolute value of the second difference is greater than or equal to the second predetermined value, or in the case of the third difference When the absolute value is greater than or equal to the third specified value, the switching intervals are each set to a first time period; and In a case where the third absolute value of the difference is smaller than the third prescribed value, the switching intervals are each set to a second time period longer than the first time period. 6. A ventilation system comprising: A ventilation control device according to any one of claims 1 to 5; and An opening control device configured to control the opening and closing of the opening of the building through the control of the ventilation control device. 7. A program for setting a ventilation path in a building and a ventilation rate of wind passing through the ventilation path at predetermined switching intervals, said program causing a computer to function as the following: a ventilation path setting section configured to set the ventilation path based on the environmental information acquired by the information acquiring section, the environmental information including: meteorological information including wind wind blowing outside the building; Relevant information, and the air temperature and air humidity outside the building; and indoor environment information, which includes the room temperature and indoor humidity in the building, wherein the air temperature outside the building is the external air temperature, and the air temperature outside the building The air humidity is the external air humidity; a ventilation amount setting section configured to set the ventilation amount based on the environmental information acquired by the information acquiring section and the ventilation path set by the ventilation path setting section; and an output section configured to output the ventilation path set by the ventilation path setting section and the ventilation amount set by the ventilation amount setting section, Wherein, the program makes the computer act as the ventilation path setting unit to perform the following operations: setting a plurality of candidate paths having priorities in descending order of expected ventilation effects based on the environmental information; and In the case that the first candidate path with the highest priority among the plurality of candidate paths is the same as the previously set ventilation path, between the room temperature previously acquired by the information acquisition unit and the room temperature currently acquired by the information acquisition unit When the difference between them is above a predetermined threshold, the first candidate path is set as the ventilation path, and when the difference is smaller than the predetermined threshold, the priority among the plurality of candidate paths is A second candidate path next to the first candidate path is set as the ventilation path.