JP2014141841A - Ventilation control device, ventilation system and program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To accurately set a ventilation route where an actual ventilation effect is large.SOLUTION: In a ventilation control device 1, a ventilation route setting section 141 sets a ventilation route inside a building using environmental information obtained through an information acquisition section 11. A ventilation volume setting section 142 sets a ventilation volume of air flowing through the ventilation route using the environmental information and the ventilation route. The ventilation route setting section 141 ses a plurality of candidate routes with descending order of priority with respect to expected ventilation effects. When a first candidate route with the highest priority is identical to the previously set ventilation route and a difference value in room temperatures between previous time and this time is not less than a threshold value, the ventilation route setting section 141 sets the highest priority candidate route as the ventilation route. When the difference value is less than the threshold value, the ventilation route setting section 141 sets a second candidate route with the second highest priority next to the first candidate route as the ventilation route.

Description

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

  2. Description of the Related Art Conventionally, a system that allows wind to flow into a building from outside the building is known so that a person existing in the building (hereinafter referred to as a “resident”) can live in a comfortable environment (for example, a patent) Reference 1).

  The system described in Patent Document 1 is based on information such as wind direction outside the building, wind speed, and outside air temperature, information such as room temperature inside the building, and information such as room arrangement and opening position. Select a ventilation path in

JP 2012-122285 A

  However, the conventional system described in Patent Document 1 has a problem of selecting a ventilation path with a small actual ventilation effect when a difference between an expected ventilation effect and an actual ventilation effect is large. That is, in the conventional system described in Patent Document 1, a ventilation path with a large expected ventilation effect but a small actual ventilation effect may be selected.

  The present invention has been made in view of the above points, and an object of the present invention is to provide a ventilation control device, a ventilation system, and a program capable of accurately setting a ventilation path having a large actual ventilation effect. It is in.

  The ventilation control device of the present invention is a ventilation control device that sets a ventilation path in a building and a ventilation amount of the wind passing through the ventilation path at a predetermined switching interval, and wind-related information relating to the wind blowing outside the building Acquired by the information acquisition unit, which acquires environmental information including weather information including outside temperature and outside humidity outside the building, and indoor environment information including room temperature and indoor humidity inside the building, and the information acquisition unit Using the environmental information, the ventilation path setting unit for setting the ventilation path, the environmental information acquired by the information acquisition unit, and the ventilation path set by the ventilation path setting unit, A ventilation amount setting unit for setting a ventilation amount, the ventilation route set by the ventilation route setting unit, and an output unit for outputting the ventilation amount set by the ventilation amount setting unit. Configuration Sets a plurality of candidate routes prioritized in descending order of expected ventilation effect using the environment information, and the first candidate route with the highest priority among the plurality of candidate routes is the previous time. When the same ventilation path is set, when the difference value between the room temperature previously acquired by the information acquisition unit and the room temperature acquired this time by the information acquisition unit is equal to or greater than a predetermined threshold, the first The candidate route is set as the ventilation route, and when the difference value is less than the threshold value, the second candidate route having the second highest priority among the plurality of candidate routes is set next to the first candidate route. It is set as the ventilation path.

  In this ventilation control device, the ventilation path setting unit always always performs the second candidate when the difference value is less than the threshold value for the first candidate path. It is preferable to set a candidate route as the ventilation route.

  In this ventilation control device, the opening control unit that controls the opening control device that controls the opening and closing of the opening formed in the building, using the ventilation path and the ventilation amount output from the output unit. It is preferable to further comprise.

  In this ventilation control device, the state determination unit that determines the state of the ventilation auxiliary device that assists ventilation on the ventilation path according to the ventilation path and the ventilation amount that are output from the output unit, It is preferable to further include an auxiliary control unit that controls the ventilation auxiliary device so as to be in the state of the ventilation auxiliary device determined by the state determination unit.

  In this ventilation control device, a first determination is made as to whether or not a first difference absolute value indicating a difference absolute value between the room temperature and the outside air temperature acquired by the information acquisition unit is less than a first specified value. And when the first difference absolute value is less than the first specified value, the difference absolute value between the room temperature acquired by the information acquisition unit and the set temperature on the ventilation path is indicated. A second determination unit for determining whether or not a second difference absolute value is less than a second specified value; and the information when the second difference absolute value is less than the second specified value A third determination is made as to whether or not the third difference absolute value indicating the difference absolute value between the room temperature acquired this time by the acquisition unit and the room temperature acquired last time by the information acquisition unit is less than a third specified value. When the determination unit and the first absolute difference value are greater than or equal to the first specified value, the second absolute difference value is If the second specified value is greater than or equal to the third specified absolute value or greater than the third specified value, the switching interval is set to the first time, while the third difference is set. When the absolute value is less than the third specified value, it is preferable to further include a switching interval setting unit that sets the switching interval to a second time longer than the first time.

  The ventilation system according to the present invention includes the ventilation control device and an opening control device that controls opening and closing of the opening of the building by the control of the ventilation control device.

  The program of the present invention is a program used for setting a ventilation path in a building and a ventilation amount of the wind passing through the ventilation path at a predetermined switching interval, and relates to a wind blowing outside the building. Wind-related information, weather information including outside temperature and outside humidity outside the building, and indoor environment information including room temperature and indoor humidity inside the building, using the environment information acquired by the information acquisition unit, Ventilation path setting section for setting a ventilation path using the ventilation path setting section for setting a ventilation path, the environment information acquired by the information acquisition section, and the ventilation path set by the ventilation path setting section. And a program for functioning as an output section for outputting the ventilation path set by the ventilation path setting section and the ventilation volume set by the ventilation volume setting section. In the computer, a plurality of candidate routes that are prioritized in descending order of expected ventilation effects are set using the environment information as the ventilation route setting unit in the plurality of candidate routes. If the first candidate route with the highest priority is the same as the previously set ventilation route, the difference value between the room temperature acquired last time by the information acquisition unit and the room temperature acquired this time by the information acquisition unit is When it is equal to or greater than a predetermined threshold, the first candidate route is set as the ventilation route, while when the difference value is less than the threshold, the first candidate route among the plurality of candidate routes. Is a program for causing the second candidate route having the second highest priority to be set as the ventilation route.

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

It is a block diagram which shows the structure of the ventilation system which concerns on embodiment. It is a flowchart which shows operation | movement of the ventilation control apparatus which concerns on embodiment. It is a flowchart which shows the setting operation | movement of the ventilation path | route of the ventilation control apparatus which concerns on embodiment.

  In the ventilation system according to the following embodiments, the ventilation control device is a device that sets a ventilation state (ventilation route, ventilation amount) in a building at a predetermined switching interval.

  When setting a ventilation route, this ventilation control device first sets a plurality of candidate routes with priorities in descending order of expected ventilation effects. If the first candidate route with the highest priority is the same as the previously set ventilation route and the difference value between the previous room temperature and the current room temperature is less than the threshold value, the ventilation control device The second candidate route having the second highest priority after the first candidate route is set as the ventilation route instead of the candidate route.

  That is, the ventilation control device of this embodiment determines that the actual ventilation effect of the ventilation path set last time is small when the current room temperature and the previous room temperature are almost the same, and such a ventilation effect. Preventing continuous setting of small ventilation paths.

  In the present embodiment, the ventilation path is a path that is set so that the wind from outside the building passes through the space (room, hallway, stairs, etc.) in the building. The ventilation amount is the amount of wind passing through the ventilation path.

  Hereinafter, the details of the ventilation system of the present embodiment will be described with reference to the drawings.

  As shown in FIG. 1, the ventilation system according to the present embodiment includes a ventilation control device 1, a plurality of opening control devices 2, 2, 2, and a plurality of ventilation auxiliary devices 3, 3,. Yes. The ventilation system further includes an anemometer 4, a first thermohygrometer 5, a second thermohygrometer 6, and an input device 7.

  Hereinafter, although the case where a ventilation system is used for a general detached house is demonstrated as an example, the said ventilation system may be used not only for a detached house but for example, each dwelling unit of an apartment house. The ventilation system may be used in offices, stores, facilities, factories, and the like.

  Each opening control device 2 is a device that controls opening and closing of an opening formed in a building. Each opening control device 2 is, for example, a window opening / closing device that opens and closes a window as an opening by operating a fitting (window glass, window shutter, etc.), or a door that opens and closes an entrance as an opening by operating the door. Switchgear. Examples of the door include an entrance door provided at the entrance or a door provided in a building. Each opening control device 2 is controlled by the ventilation control device 1.

  The wind direction anemometer 4 is installed outside the building, and measures the direction (wind direction) and speed (wind speed) of the wind blowing outside the building.

  The first thermohygrometer 5 is installed outside the building, and measures the temperature outside the building (outside temperature) and the humidity outside the building (outside air humidity).

  The second thermohygrometer 6 is installed in the building, and measures the temperature (room temperature) in the building and the humidity (room humidity) in the building.

  The input device 7 is a device used when, for example, a person (hereinafter referred to as “resident”) in a building inputs an instruction to the ventilation control device 1. The input device 7 receives an input of a set temperature (target temperature) in the building by, for example, an input operation by a resident. The input device 7 can also accept input of various instructions other than the set temperature.

  The ventilation control device 1 is a controller whose main components are, for example, a computer (including a microcomputer) on which a CPU (Central Processing Unit) and a memory are mounted. The ventilation control device 1 includes an information acquisition unit 11, a set temperature acquisition unit 12, a storage unit 13, and an arithmetic processing unit 14.

  The information acquisition unit 11 acquires environmental information (environment data). The environmental information (environmental data) includes weather information (meteorological data) and indoor environment information (indoor environmental data). The weather information (meteorological data) includes wind-related information (wind-related data), outside air temperature outside the building, and outside air humidity. The wind-related information is information related to the wind blowing outside the building, and includes the wind direction and wind speed of the wind. The indoor environment information includes room temperature and indoor humidity in the building.

  The information acquisition unit 11 includes a wind related information acquisition unit 111, an outside air temperature / humidity acquisition unit 112, and an indoor temperature / humidity acquisition unit 113.

  The wind related information acquisition unit 111 includes an interface unit (not shown) for connecting the wind direction anemometer 4, and the measurement result of the wind direction anemometer 4 from the wind direction anemometer 4 connected to the interface unit. To get. For example, the wind related information acquisition unit 111 acquires the measurement result from the anemometer 4 at a cycle shorter than the switching interval for setting the ventilation state. And the wind related information acquisition part 111 selects the wind direction with the highest frequency from the distribution of the wind direction acquired with the said period from the time of the last ventilation state setting. Moreover, the wind related information acquisition part 111 calculates | requires the average value of the wind speed acquired by the said period from the time of the last setting of the ventilation path | route and ventilation volume. Thereby, the wind related information acquisition part 111 can acquire the selected wind direction and the calculated | required wind speed (average value) as wind related information. The wind-related information acquisition unit 111 may acquire wind-related information from the anemometer 4 by wireless communication using radio waves as a transmission medium, not limited to wired communication.

  The outside air temperature / humidity acquisition unit 112 includes an interface unit (not shown) for connecting the first thermohygrometer 5, and from the first thermohygrometer 5 connected to the interface unit, The measurement result of 1 thermohygrometer 5 is acquired. That is, the outside air temperature / humidity obtaining unit 112 obtains the outside air temperature and the outside air humidity from the first thermohygrometer 5. The outside air temperature / humidity acquisition unit 112 may acquire the outside air temperature and the outside air humidity from the first thermometer / hygrometer 5 through wireless communication using radio waves as a transmission medium, not limited to wired communication.

  The indoor temperature / humidity acquisition unit 113 includes an interface unit (not shown) for connecting the second temperature / humidity meter 6, and the second temperature / humidity meter 6 connected to the interface unit The measurement result of the temperature / humidity meter 2 of 2 is acquired. That is, the indoor temperature / humidity acquisition unit 113 acquires the indoor environment information from the second thermohygrometer 6. The room temperature / humidity acquisition unit 113 may acquire the room environment information from the second temperature / humidity meter 6 by wireless communication using radio waves as a transmission medium.

  The set temperature acquisition unit 12 includes an interface unit (not shown) for connecting the input device 7, and the set temperature input to the input device 7 from the input device 7 connected to the interface unit. To get. Note that the set temperature acquisition unit 12 may acquire the set temperature from the input device 7 by wireless communication using radio waves as a transmission medium, not limited to wired communication.

  The storage unit 13 includes a weather information history storage unit 131, an indoor environment information history storage unit 132, and a control log storage unit 133.

  The weather information history storage unit 131 stores a history of wind-related information acquired by the wind-related information acquisition unit 111 so far. Each time the wind related information acquisition unit 111 acquires wind related information, the calculation processing unit 14 controls the wind related information to be written in the weather information history storage unit 131 in association with the acquisition date and the acquisition time. The weather information history storage unit 131 stores the history of the outside air temperature and the outside air humidity acquired by the outside air temperature / humidity acquisition unit 112 so far. Whenever the outside air temperature and humidity acquisition unit 112 acquires the outside air temperature and the outside air humidity, the outside air temperature and the outside air humidity are associated with the acquisition date and the acquisition time in the weather information history storage unit 131 under the control of the arithmetic processing unit 14. Written.

  The indoor environment information history storage unit 132 stores the history of the indoor environment information acquired by the indoor temperature / humidity acquisition unit 113 so far. Each time the indoor temperature / humidity acquisition unit 113 acquires the indoor environment information, the control of the arithmetic processing unit 14 writes the indoor environment information in the indoor environment information history storage unit 132 in association with the acquisition date and the acquisition time.

  The control log storage unit 133 stores a history of control contents for the opening control device 2 thus far, that is, a control log, under the control of the arithmetic processing unit 14. Each time the opening control unit 144 of the arithmetic processing unit 14 controls the opening control device 2 according to the control content of the opening control device 2, the control content is associated with the control date and the control time by the control of the arithmetic processing unit 14. Are written in the control log 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 includes a state determination unit 145 and an auxiliary control unit 146. Further, the arithmetic processing unit 14 includes a first determination unit 151, a second determination unit 152, a third determination unit 153, and a switching interval setting unit 154. Note that the arithmetic processing unit 14 can execute various programs to perform various processes. Various programs are stored in the storage unit 13.

  The ventilation path setting unit 141 sets the ventilation path in the building using the environment information acquired by the information acquisition unit 11 and the history information stored in the storage unit 13. The ventilation path setting unit 141 of the present embodiment sets a ventilation path in the building by executing a ventilation path setting program for setting a ventilation path. When the ventilation route setting program is executed, building information related to the floor plan (including the position of the opening) in the building is input to the storage unit 13 in advance. The ventilation path setting program is stored in the storage unit 13.

  The ventilation amount setting unit 142 uses the environment information acquired by the information acquisition unit 11, the ventilation route set by the ventilation route setting unit 141, and the history information stored in the storage unit 13 to set the ventilation route. The ventilation amount passing through the ventilation path set by the unit 141 is set. The ventilation amount setting unit 142 of the present embodiment sets the ventilation amount on the ventilation path by executing a ventilation amount setting program for setting the ventilation amount. When the ventilation amount setting program is executed, building information relating to the floor plan (including the position of the opening) in the building is input in advance. The ventilation amount setting program is stored in the storage unit 13.

  The output unit 143 outputs the ventilation path set by the ventilation path setting unit 141 and the ventilation amount set by the ventilation amount setting unit 142 to the opening control unit 144.

  The opening control unit 144 determines the control content of each opening control device 2 using the ventilation path and the ventilation amount output from the output unit 143. Actually, the opening control unit 144 determines the control content of each opening control device 2 so that a ventilation path through which the amount of wind passes is formed in the building. And the opening control part 144 controls each opening part control apparatus 2 according to the said control content.

  In such an arithmetic processing unit 14, the ventilation path setting unit 141 executes a ventilation path setting program and sets the ventilation path by the following operation. First, the ventilation path setting unit 141 sets a plurality of candidate paths that are prioritized in descending order of expected ventilation effects using the environment information acquired by the information acquisition unit 11. When the first candidate route with the highest priority among the plurality of candidate routes is the same as the previously set ventilation route, the information acquisition unit 11 and the information acquisition unit 11 this time acquire the room temperature last time. When the difference value from the acquired room temperature (previous room temperature-current room temperature) is equal to or greater than a predetermined threshold, the ventilation path setting unit 141 sets the first candidate path as a ventilation path. On the other hand, when the difference value (previous room temperature−current room temperature) is less than the threshold value, the ventilation path setting unit 141 has the second highest priority next to the first candidate path among the plurality of candidate paths. Is set as a ventilation route.

  In addition, the ventilation route setting unit 141 according to the present embodiment has a predetermined number of times and a difference value (previous room temperature−current room temperature) less than the threshold for the first candidate route having the highest priority. After that, the second candidate route is always set as the ventilation route.

  By the way, when a sufficient ventilation amount cannot be obtained in the ventilation path set by the ventilation path setting unit 141, it is necessary to operate the plurality of ventilation auxiliary devices 3, 3,.

  The ventilation assist device 3 is a fan (ventilation fan 31, ceiling fan 32), air conditioner 33, 33, or the like, and assists ventilation on the ventilation path set by the ventilation path setting unit 141. The ventilation fan 31 is installed in a building or a toilet, for example, in a building. The ceiling fan 32 is installed in the building, for example, above the ceiling of the room or above the stairs. The air conditioner 33 is installed in a room in the building.

  The state determination unit 145 determines the state of each ventilation auxiliary device 3 according to the ventilation path and the amount of ventilation output from the output unit 143.

  The auxiliary control unit 146 controls each ventilation auxiliary device 3 so as to be in the state of each ventilation auxiliary device 3 determined by the state determination unit 145. Each ventilation auxiliary device 3 operates according to the control of the auxiliary control unit 146.

  The control log storage unit 133 of the present embodiment stores not only the history of the control content of the opening control device 2 so far but also the history of the state of the ventilation auxiliary device 3 so far. Each time the auxiliary control unit 146 controls the ventilation assistance device 3, the state of the ventilation assistance device 3 is written in the control log storage unit 133 in association with the control date and the control time by the control of the arithmetic processing unit 14.

  By the way, since the wind direction and the wind speed change every moment, it is necessary for the ventilation control device 1 to switch the ventilation state (ventilation path, ventilation amount) according to the change in the wind direction and the wind speed. The switching interval at which the ventilation control device 1 switches the ventilation state is about 10 minutes.

  However, if the ventilation state is switched in a shorter time than necessary, the discomfort of the occupants increases. On the contrary, even if the switching interval of the ventilation state becomes long, the room temperature does not reach the set temperature or the room temperature passes the set temperature, which may impair the comfort of the occupants.

  Therefore, the ventilation control device 1 according to the present embodiment does not fix the switching interval of the ventilation state (ventilation route, ventilation amount), but can change it according to the following determination conditions.

  The first determination unit 151 compares the room temperature (current room temperature) acquired by the information acquisition unit 11 with the outside air temperature (current outside air temperature). Then, the first determination unit 151 determines that the absolute difference between the current room temperature and the current outside air temperature (hereinafter referred to as “first difference absolute value”) | It is determined whether it is less than the value.

  When the first difference absolute value is less than the first specified value, the second determination unit 152 calculates the room temperature (current room temperature) acquired by the information acquisition unit 11 and the set temperature on the ventilation path. Compare. Then, the second determination unit 152 determines that the difference absolute value between the current room temperature and the set temperature (hereinafter referred to as “second difference absolute value”) | the current room temperature−the set temperature | is less than the second specified value. It is determined whether or not.

  The third determination unit 153 stores the room temperature (current room temperature) acquired by the information acquisition unit 11 and the indoor environment information history storage unit 132 when the second absolute difference value is less than the second specified value. Compare the stored room temperature of the previous acquisition. Then, the third determination unit 153 determines that the difference absolute value between the current room temperature and the previous room temperature (hereinafter referred to as “third difference absolute value”) | current room temperature−previous room temperature | is less than the third specified value. It is determined whether or not.

  The switching interval setting unit 154 sets the switching interval of the ventilation state (ventilation route, ventilation amount), that is, the next control start timing. When the first difference absolute value | current room temperature−current outside air temperature | is equal to or higher than the first specified value, the switching interval setting unit 154 sets the switching interval to the first time. That is, in this case, the switching interval setting unit 154 sets the next switching timing after the first time has elapsed from the current switching timing. Similarly, when the second difference absolute value | current room temperature−set temperature | is equal to or greater than the second specified value, the switching interval setting unit 154 sets the switching interval to the first time. Further, when the third difference absolute value | current room temperature−previous room temperature | is equal to or greater than the third specified value, the switching interval setting unit 154 similarly sets the switching interval to the first time.

  On the other hand, when the third difference absolute value | current room temperature−previous room temperature | is less than the third specified value, the switching interval setting unit 154 sets the switching interval to the second time. That is, in this case, the switching interval setting unit 154 sets the next switching timing after the second time has elapsed from the current switching timing. The second time is set in advance to be longer than the first time.

  That is, the ventilation control device 1 determines the first difference absolute value | current room temperature−current outside temperature |, second difference absolute value | current room temperature−set temperature |, or third difference absolute value | current room temperature. -When any of the previous room temperatures | is equal to or higher than a specified value (first specified value, second specified value, third specified value), the switching interval is made relatively short. On the other hand, the first difference absolute value | current room temperature−current outside air temperature |, second difference absolute value | current room temperature−set temperature | and third difference absolute value | current room temperature−previous room temperature | When it is less than the predetermined value, the ventilation control device 1 makes the switching interval relatively long.

  By the way, the memory | storage part 13 has memorize | stored various information as needed not only the log | history of the weather information mentioned above, the log | history of indoor environment information, and a control log.

  The storage unit 13 stores a program for the ventilation control device (computer) 1 to execute various functions. That is, the storage unit 13 includes 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 first determination unit 151, The program for functioning as the 2nd determination part 152, the 3rd determination part 153, and the switching space | interval setting part 154 is stored. The program is stored in advance in the storage unit 13 when the ventilation control device 1 is shipped. However, when the ventilation control device 1 acquires the program after shipment, an example of a method by which the ventilation control device 1 acquires the program is a method using a computer-readable recording medium in which the program is recorded. In the case of a method using a recording medium, the ventilation control device 1 may be provided with a reading device (not shown) for reading data on the recording medium. Examples of the recording medium include an optical disk and a memory card. Examples of the reading device include a drive device that reads information on an optical disk, and a memory card reader that reads information on a memory card. Further, as another method for the ventilation control device 1 to acquire the program, there is a method of downloading the program from another device (for example, a server) using a network. In the method of downloading the program, the ventilation control device 1 only needs to have a communication function for communicating with the other device using a network.

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

  First, the information acquisition unit 11 acquires environmental information (S1). Thereafter, the ventilation path setting unit 141 of the arithmetic processing unit 14 sets the ventilation path using the environment information acquired in step S1 and the history information stored in the storage unit 13 (S2).

  Here, the detail of the setting operation | movement of a ventilation path | route is demonstrated using FIG. In step S2, the ventilation path setting unit 141 sets a plurality of candidate paths with priorities in descending order of expected ventilation effects (S21).

  When the first candidate route with the highest priority among the plurality of ventilation routes is not the same as the previously set ventilation route (NO in S22), the ventilation route setting unit 141 uses the first candidate route for the ventilation route. (S24).

  On the other hand, when the first candidate route is the same as the previously set ventilation route (YES in S22), the ventilation route setting unit 141 determines the difference value between the previous room temperature and the current room temperature (the previous room temperature). -When the current room temperature is equal to or higher than the threshold (NO in S23), the first candidate route is set as the ventilation route (S24).

  On the other hand, when the difference value (previous room temperature−current room temperature) is less than the threshold (YES in S23), the ventilation path setting unit 141 has the next highest priority order after the first candidate path among the plurality of ventilation paths. A high second candidate route is set as a ventilation route (S25).

  After step S2, as shown in FIG. 2, the ventilation amount setting unit 142 of the arithmetic processing unit 14 is stored in the storage unit 13 with the environmental information acquired in step S1, the ventilation path set in step S2. The ventilation amount is set using the history information that is stored (S3).

  Thereafter, the state determination unit 145 of the arithmetic processing unit 14 determines the state of each ventilation auxiliary device 3 according to the ventilation path set in step S2 and the ventilation amount set in step S3 (S4). In addition, when the operation of the ventilation auxiliary device 3 is not necessary, the state determination unit 145 sets the state of the ventilation auxiliary device 3 to the off state.

  Thereafter, the opening control unit 144 of the arithmetic processing unit 14 controls each opening control device 2 using the ventilation path set in step S2 and the ventilation amount set in step S3 (S5). In addition, the auxiliary control unit 146 of the arithmetic processing unit 14 controls each ventilation auxiliary device 3 so as to be in the state of each ventilation auxiliary device 3 determined in step S4.

  Thereafter, the first determination unit 151 determines whether or not the first difference absolute value | current room temperature−current outside air temperature | is less than the first specified value (S6). If the first difference absolute value is less than the first specified value (YES in S6), it is determined whether the second difference absolute value | current room temperature-set temperature | is less than the second specified value. 2 is determined by the determination unit 152 (S7). When the second difference absolute value is less than the second specified value (YES in S7), it is determined whether or not the third difference absolute value | current room temperature-previous room temperature | is less than the third specified value. The third determination unit 153 determines (S8).

  In step S6, when the first difference absolute value is greater than or equal to the first specified value (NO in S6), the switching interval setting unit 154 of the arithmetic processing unit 14 sets the switching interval to the first time (S9). ). Similarly, when the second absolute difference value is equal to or greater than the second specified value in step S7 (NO in S7), the switching interval setting unit 154 similarly sets the switching interval to the first time. Further, when the third difference absolute value is equal to or greater than the third specified value (NO in S8), the switching interval setting unit 154 similarly sets the switching interval to the first time.

  On the other hand, when the third difference absolute value is less than the third specified value (YES in S9), the switching interval setting unit 154 sets the switching interval after a second time longer than the first time (S10). ).

  Thereafter, after the first time has elapsed (YES in S11), the ventilation control device 1 returns to step S1 and performs an operation for switching the ventilation state. Similarly, after the second time has elapsed (YES in S12), the ventilation control device 1 returns to step S1 and performs an operation for switching the ventilation state.

  In the ventilation system according to the present embodiment described above, the ventilation control device 1 is configured such that the first candidate route with the highest priority is the same as the previously set ventilation route, and the previously acquired room temperature and the current acquired room temperature are the same. If the difference value is less than the threshold value, the second candidate route having the second highest priority after the first candidate route is set as the ventilation route instead of the first candidate route. Thereby, in the ventilation control apparatus 1 of this embodiment, although the 1st candidate path | route with a large expected ventilation effect was set as a ventilation path last time, when actual ventilation effect was small, this time actual ventilation Instead of the first candidate route having a small effect, the second candidate route can be used as a ventilation route. As a result, it is possible to accurately set a ventilation path having a large actual ventilation effect. That is, it is possible to confirm the actual ventilation effect and set an optimum ventilation path. For example, even if there is no information about the detailed floor plan of the building (including the position of the opening), the actual ventilation effect can be confirmed and an optimum ventilation path can be set.

  In the ventilation system according to the present embodiment, the ventilation control device 1 determines the difference between the room temperature acquired last time and the room temperature acquired this time for the first candidate route having the highest priority, the number of times determined so far. When the value is less than the threshold value, the second candidate route having the second highest priority after the first candidate route is always set as the ventilation route thereafter. Thereby, in the ventilation control apparatus 1 of this embodiment, the ventilation path | route with a small actual ventilation effect can be excluded reliably.

  Furthermore, in the ventilation system according to the present embodiment, the ventilation control device 1 controls the opening control device 2 that controls the opening and closing of the opening by using the ventilation path and the amount of ventilation output from the output unit 143. To do. Thereby, in the ventilation control apparatus 1 of this embodiment, since an opening part can be opened and closed automatically, compared with the case where an opening part is opened and closed manually, ventilation can be performed easily.

  Further, in the ventilation control system according to the present embodiment, the ventilation control device 1 determines the ventilation path according to the ventilation path set by the ventilation path setting unit 141 and the ventilation amount set by the ventilation amount setting unit 142. Each ventilation auxiliary device 3 that assists the upper ventilation is controlled. Thereby, in the ventilation control apparatus 1 of this embodiment, even if it is a case where sufficient ventilation is not obtained in the ventilation path set this time, each ventilation auxiliary | assistance apparatus 3 can be operated and ventilation can be promoted. . As a result, it is possible to improve the comfort by ventilation even when there is no wind.

  Furthermore, in the ventilation system according to the present embodiment, the ventilation control device 1 includes the first absolute difference value | room temperature−outside temperature |, the second absolute difference value | room temperature−set temperature |, or the third absolute difference value |. If any one of the current room temperature-the previous room temperature | is equal to or greater than a specified value (first to third specified values), the switching interval is made relatively short. On the other hand, the ventilation control device 1 of the present embodiment makes the switching interval relatively long when all of the first difference absolute value, the second difference absolute value, and the third difference absolute value are less than the specified value. Thereby, in the ventilation control apparatus 1 of this embodiment, it ventilates at the switching space | interval as long as possible, keeping the temperature environment which a person (resident in a room) who exists in a building does not feel uncomfortable as needed. be able to. As a result, energy saving and comfort can be improved by ventilation without giving uncomfortable feeling due to frequent switching.

  In the present embodiment, the wind related information acquisition unit 111 of the information acquisition unit 11 acquires the wind related information from the anemometer 4, but as a modification of the present embodiment, the wind related information acquisition unit 111 is Wind-related information may be acquired from an external device (not shown). The external device may be any device that periodically acquires and holds wind-related information, for example.

  In the present embodiment, the outside temperature / humidity acquisition unit 112 of the information acquisition unit 11 acquires the outside temperature and the outside air humidity from the first thermohygrometer 5 installed outside the building. As a modification of the embodiment, the outside air temperature / humidity acquisition unit 112 may acquire the outside air temperature and the outside air humidity from an external device (not shown). The external device may be a device that periodically acquires and holds the outside air temperature and the outside air humidity, for example.

  Furthermore, in this embodiment, the indoor temperature / humidity acquisition unit 113 of the information acquisition unit 11 acquires the indoor environment information from the second thermohygrometer 6 installed in the building. As an example, the indoor temperature / humidity acquisition unit 113 may acquire indoor environment information from an external device (not shown). The external device may be any device that periodically acquires and holds indoor environment information, for example.

  As a modification of the present embodiment, the output unit 143 informs the ventilation state (ventilation route, ventilation amount) set this time not only of the opening control unit 144 and the auxiliary control unit 146 but also notification means (not shown). May be output. In the case of this modification, the notification unit notifies the ventilation state output from the output unit 143. Thereby, the occupant can be informed of the ventilation state set this time. In addition, the alerting | reporting method for alerting | reporting a ventilation state may be the method of displaying the said ventilation state on a screen, and the method of outputting the said ventilation state with an audio | voice.

  Furthermore, in this embodiment, the opening control unit 144 controls the plurality of opening control devices 2, 2, and 2. However, as a modification of the present embodiment, the output unit 143 includes a plurality of opening control devices 2. , 2, 2 may be output to the management device (not shown) for the ventilation state (ventilation route, ventilation amount) set this time. In the case of this modification, when the management device acquires the ventilation state from the output unit 143, the management device determines the control content of each opening control device 2 using the ventilation state. And the said management apparatus controls each opening part control apparatus 2 according to the said control content.

DESCRIPTION OF SYMBOLS 1 Ventilation control apparatus 11 Information acquisition part 141 Ventilation route setting part 142 Ventilation amount setting part 143 Output part 144 Opening control part 145 State determination part 146 Auxiliary control part 151 1st determination part 152 2nd determination part 153 3rd determination 154 Switching interval setting unit 2 Opening control device 3 Ventilation assist device

Claims (7)

A ventilation control device for setting a ventilation path in a building and a ventilation amount of a wind passing through the ventilation path at a predetermined switching interval,
Information for acquiring environmental information including wind-related information relating to wind blowing outside the building, weather information including outside air temperature and outside air humidity outside the building, and indoor environment information including room temperature and indoor humidity inside the building An acquisition unit;
A ventilation path setting unit that sets the ventilation path using the environmental information acquired by the information acquisition unit;
A ventilation amount setting unit that sets the ventilation amount using the environment information acquired by the information acquisition unit and the ventilation path set by the ventilation route setting unit;
The ventilation path set by the ventilation path setting unit, and the output unit that outputs the ventilation amount set by the ventilation amount setting unit,
The ventilation path setting unit
A plurality of candidate routes prioritized in descending order of expected ventilation effect are set using the environment information, and the first candidate route with the highest priority among the plurality of candidate routes is set last time. If the difference value between the room temperature previously acquired by the information acquisition unit and the room temperature acquired this time by the information acquisition unit is equal to or greater than a predetermined threshold, the first candidate While the route is set as the ventilation route, when the difference value is less than the threshold value, the second candidate route having the second highest priority after the first candidate route is selected from the plurality of candidate routes. A ventilation control device that is set as a route.   When the difference value is less than the threshold value for the first candidate route, the ventilation route setting unit always always sets the second candidate route as the ventilation route. The ventilation control device according to claim 1, wherein the ventilation control device is set as follows.   Any of them further includes an opening control unit that controls an opening control device that controls opening and closing of the opening formed in the building by using the ventilation path and the amount of ventilation output from the output unit. The ventilation control device according to claim 1 or 2. A state determination unit that determines a state of a ventilation assist device that assists ventilation on the ventilation path according to the ventilation path and the ventilation amount that are output from the output unit,
The ventilation control device according to claim 3, further comprising: an auxiliary control unit that controls the ventilation assistance device so as to be in the state of the ventilation assistance device determined by the state determination unit. A first determination unit that determines whether or not a first difference absolute value indicating a difference absolute value between the room temperature and the outside air temperature acquired by the information acquisition unit is less than a first specified value;
When the first absolute difference value is less than the first specified value, a second absolute difference value indicating an absolute difference value between the room temperature acquired by the information acquisition unit and a set temperature on the ventilation path. A second determination unit that determines whether or not the value is less than a second specified value;
A third difference absolute value between the room temperature acquired this time by the information acquisition unit and the room temperature previously acquired by the information acquisition unit when the second absolute difference value is less than the second specified value; A third determination unit that determines whether or not the difference absolute value is less than a third specified value;
When the first absolute difference value is greater than or equal to the first prescribed value, when the second absolute difference value is greater than or equal to the second prescribed value, or when the third absolute difference value is the first absolute value. If it is greater than or equal to the prescribed value of 3, the switching interval is set to the first time, while if the third absolute difference value is less than the third prescribed value, the switching interval is set to the first time. The ventilation control device according to claim 1, further comprising: a switching interval setting unit that sets the second time longer than the switching interval setting unit. The ventilation control device according to any one of claims 1 to 5,
A ventilation system comprising: an opening control device that controls opening and closing of the opening of the building under the control of the ventilation control device. A program used for setting a ventilation path in a building and a ventilation amount of wind passing through the ventilation path at a predetermined switching interval,
Computer
Acquired by the information acquisition unit, including wind-related information related to the wind blowing outside the building, weather information including outside air temperature and outside air humidity outside the building, and indoor environment information including room temperature and indoor humidity inside the building A ventilation path setting unit configured to set the ventilation path using the environmental information thus generated;
A ventilation amount setting unit that sets the ventilation amount using the environmental information acquired by the information acquisition unit, and the ventilation path set by the ventilation route setting unit, and
A program for causing the ventilation path set by the ventilation path setting unit to function as an output unit that outputs the ventilation amount set by the ventilation amount setting unit,
As the ventilation path setting unit in the computer,
A plurality of candidate routes prioritized in descending order of expected ventilation effect are set using the environment information, and the first candidate route with the highest priority among the plurality of candidate routes is set last time. If the difference value between the room temperature previously acquired by the information acquisition unit and the room temperature acquired this time by the information acquisition unit is equal to or greater than a predetermined threshold, the first candidate While the route is set as the ventilation route, when the difference value is less than the threshold value, the second candidate route having the second highest priority after the first candidate route is selected from the plurality of candidate routes. Program to make setting function as a route work.

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