JP2017032248A - Air blowing system and air blower control method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To efficiently eliminate air unevenness in a space in which a plurality of air blowers are installed in an air blowing system and an air blower control method.SOLUTION: An air blowing system includes a plurality of air blowers 10, 20, 30, and 40. The plurality of air blowers 10, 20, 30, and 40 have air blower bodies 11, 21, 31, and 41 for performing air blowing, control sections 12, 22, 32, and 42 for controlling the air blower bodies 11, 21, 31, and 41, and communication sections 13, 23, 33, and 43 for communicating environmental information in a space in which the plurality of air blowers 10, 20, 30, and 40 are installed with other air blowers, respectively. The control sections 12, 22, 32, and 42 control the air blower bodies 11, 21, 31, and 41 of the air blowers 10, 20, 30, and 40 which have the control sections to perform air blowing from the air blowers to the other air blowers or stop when air blowing is performed from the other air blowers to the air blowers so that a difference between the environmental information is eliminated on the basis of the environmental information acquired by the air blowers and the environmental information acquired by the other air blowers.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a blower system including a plurality of blowers and a blower control method for each of the blowers.

  The space in the greenhouse for horticulture should be uniform in parameters (environmental information) such as temperature, humidity (saturation), and carbon dioxide concentration in order to prevent uneven growth of crops and the spread of disease. desirable.

  However, especially when a heater, air conditioner, humidifier, dehumidifier, carbon dioxide generator, etc. are installed in the greenhouse for horticulture, or when the window for the greenhouse for horticulture is open. , Hot air released from the heater, cool air released from the air conditioner, humid air released from the humidifier, low humidity air released from the dehumidifier, carbon dioxide released from the carbon dioxide generator The above parameters become non-uniform due to the influence of high-concentration air, outside air entering from the window, and the like.

  Then, the said parameter of the space in the greenhouse for facilities gardening is equalized using the air blower. For example, a specific one of a plurality of floor-mounted circulators can be switched in operating state at regular time intervals, and other floor-mounted circulators operate in conjunction with the operation information received from the one specific floor-mounted circulator. Thus, there has been proposed a technique for generating waves by swinging room air (see, for example, Patent Document 1).

Japanese Patent Laid-Open No. 2004-20072

  However, in order to control the blower so that waves can be generated in the room air as described above, parameters such as temperature, humidity, and carbon dioxide concentration in the space are made uniform unless the air volume of the blower in the space is sufficiently strong. It is difficult.

  An object of the present invention is to provide a blower system and a blower control method that can efficiently eliminate air unevenness in a space where a plurality of blowers are installed.

  In one aspect, the blower system is a blower system including a plurality of blowers, and each of the plurality of blowers includes a blower body that blows air, a control unit that controls the blower body, and the plurality of blowers. A communication unit that communicates environmental information of an installed space with another blower, and the control unit includes the environmental information acquired by the blower and the environmental information acquired by the other blower. So as to eliminate the difference in the environmental information, so as to blow air from the blower to the other blower, or to stop when blowing from the other blower to the blower. The blower main body of the blower having the control unit is controlled.

  In another one mode, a blower control method is a blower control method in each blower of a plurality of blowers having a blower main body that blows air, and the environment information acquired by the blower and the environment acquired by the other blower. Based on the information, stop so as to blow air from the blower to the other blower or to blow air from the other blower to the blower so as to eliminate the difference in the environmental information Thus, the blower body is controlled.

  According to the said aspect, the air nonuniformity of the space where a several air blower is installed can be eliminated efficiently.

It is a front view which shows the air blower in one embodiment of this invention. It is a block diagram which shows the ventilation system which concerns on one embodiment of this invention. It is a top view which shows the example of installation of the ventilation system which concerns on one embodiment of this invention.

Hereinafter, a blower system and a blower control method according to embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a front view showing a blower 10 according to an embodiment of the present invention.

As shown in FIG. 1, the blower 10 is, for example, a circulation fan that includes a blower body 11, a control unit 12, a communication unit 13, a sensor 14, a drive unit 15, and an upper protrusion 16.
The blower body 11 is a fan that blows air. The blower body 11 preferably has a variable wind direction such as swinging in a fan shape (reciprocating motion), or being able to turn 360 degrees horizontally or to an arbitrary position in the vertical direction. . Moreover, as for the air blower main body 11, it is desirable for an air volume to be variable.

The control unit 12 controls the blower body 11. For example, the control unit 12 controls the wind direction and the air volume in addition to ON (operation) / OFF (stop) of the blower body 11.
The communication unit 13 uses the environmental information of the space in the greenhouse for facility horticulture 100 shown in FIG. 3 as an example of a space in which the plurality of fans 10, 20, 30, 40 are installed to other fans 20, 30, 40 (FIG. The communication unit 23, 33, 43) shown in FIG. Examples of environmental information include temperature information, humidity (saturation) information, carbon dioxide concentration information, and the like.

The sensor 14 acquires environmental information. The sensor 14 may be installed separately from the blower 10, for example, in the vicinity of the blower 10.
The drive unit 15 is, for example, a speed reducer with a built-in motor, and is used to operate the blower main body 11 or change the wind direction by rotating the blower 11 based on control by the control unit 12. It is done.

The upper protruding portion 16 protrudes upward from the blower body 11 side and is connected to the lower portion of the driving portion 15.
Although it is an example of an installation mode, the blower 10 is fixed to a metal rod 101 that is horizontally stretched in the greenhouse for greenhouse horticulture 100 by a mounting bracket 17 and a mounting bolt 18 at the top of the drive unit 15. The Thereby, the blower 10 is suspended from the bar 101. The blower 10 may be a floor-standing blower.

  In the example shown in FIG. 2, four blowers 10, 20, 30, and 40 are installed. In addition, the structure of each air blower 10, 20, 30, 40 is demonstrated as what is mutually the same. That is, the blowers 20, 30, and 40 are provided with the blower main bodies 21, 31, 41, the control units 22, 32, 42, the communication units 23, 33, 43, the sensors 24, 34, 44, and the like, similarly to the blower 10 described above. Have.

  The intervals at which the blowers 10, 20, 30, and 40 are installed are preferably within a range where the air blown by the blower bodies 11, 21, 31, and 41 reaches other blowers, but there is no particular limitation. It can be said that the degree of freedom of the installation location is high.

  In each of the fans 10, 20, 30, 40, the environmental information acquired by the sensors 14, 24, 34, 44 is communicated with other fans (for example, all other fans) by the communication units 13, 23, 33, 43. It is communicated by. The control units 12, 22, 32, 42 are the environmental information acquired by the sensors 14, 24, 34, 44 of the blower having the control unit and the environmental information acquired by the sensors 14, 24, 34, 44 of other blowers. (For example, by comparing and collating environmental information in each blower), the blower main bodies 11, 21, 31, 41 of the blower having the control unit are controlled.

  Although it is an example, as shown in FIG. 3, when the heaters 50 and 60 are installed in the space in the greenhouse for horticulture 100, four fans (the first fan 10, the second fan 20, Temperature information acquired by the sensors 14 and 44 of the first blower 10 and the fourth blower 40 installed in the vicinity of the heaters 50 and 60 among the three blowers 30 and the fourth blower 40). The temperature information acquired by the sensors 24 and 34 of the second blower 20 and the third blower 30 installed far from the heaters 50 and 60 tends to be relatively low.

  In such a case, the control units 12 and 42 of the first blower 10 and the fourth blower 40 whose temperature information is on the high temperature side are directed toward the second blower 20 and the third blower 30 whose temperature information is on the low temperature side. The blower bodies 11 and 41 are controlled so as to blow. For example, the control unit 12 of the first blower 10 controls the blower main body 11 so as to blow air toward the second blower 20. Further, the control unit 42 of the fourth blower 40 controls the blower main body 41 so as to blow air toward the third blower 30. Thus, when three or more fans are installed, the control units 12 and 42 change the air direction of the fan bodies 11 and 41 to one of the other two or more fans (the second fan 20 or the second fan). 3 may be controlled so as to be directed to the third blower 30).

  On the other hand, the control units 22 and 32 of the second blower 20 and the third blower 30 whose temperature information is on the low temperature side are changed from the first blower 10 and the fourth blower 40 whose temperature information is on the second blower 20. And the blower main bodies 21 and 31 are controlled so as to stop when blowing toward the third blower 30.

  Further, the temperature information acquired by the sensor 14 of the first blower 10 and the temperature information acquired by the sensor 44 of the fourth blower 40 match, and the temperature information acquired by the sensor 24 of the second blower 20 After the temperature information acquired by the sensor 34 of the third blower 30 matches, the temperature information acquired by the sensors 14 and 44 of the first blower 10 and the fourth blower 40, the second blower 20 and the third blower 30. The temperature information acquired by the sensors 24 and 34 of the blower 30 may be blown from the two blowers on the high temperature side toward the two blowers on the low temperature side.

  In addition, when the temperature difference (difference between the maximum temperature and the minimum temperature) acquired by the sensors 14, 24, 34, and 44 of the blowers 10, 20, 30, and 40 is equal to or less than a predetermined value, the control units 12 and 22 are used. , 32, 42 stop the blower main bodies 11, 21, 31, 41 that are operating. The predetermined value depends on the space where the blowers 10, 20, 30, and 40 are installed. However, in the case of the space in the greenhouse for horticultural use 100, it can be said that the temperature difference is about 2 ° C. Is set to 2 ° C. or less, for example.

  In addition, when the temperature difference becomes larger than the predetermined value by, for example, 0.5 ° C. to 1.5 ° C., the control unit 12, 22, 32, 42 again causes the blower body to eliminate the temperature difference. 11, 21, 31, 41 are controlled. For example, the blower main body 11, the controller 12, 42 of the first blower 10 and the fourth blower 40 whose temperature information is on the high temperature side blows toward the second blower 20 and the third blower 30. 41 is controlled.

In addition, when said temperature difference is large, you may make it the control parts 12, 22, 32, and 42 increase the air volume of the air blower main bodies 11, 21, 31, and 41 according to it.
Although it is another example, the temperature information Ta in the first blower 10 is the highest, the temperature information Tb in the second blower 20, the temperature information Tc in the third blower 30, and the temperature information Td in the fourth blower 40. Consider a case where the temperature decreases in order, that is, a case where the relationship of Ta>Tb>Tc> Td is satisfied.

  In this case, after the first time has elapsed, the temperature information Ta-1 in the first blower 10 matches the temperature information Tb-1 in the second blower 20 (Ta-1 = Tb-1 = (Ta + Tb ) × 1/2), the control unit 12 of the first blower 10 controls the blower body 11 so as to blow air toward the second blower 20. At this time, the control unit 22 of the second blower 20 stops the blower body 21.

  Next, after Ta-1 = Tb-1> Tc-1 (= Tc), Ta-2 = Tb-2 = Tc-2 (after a second time longer than the first time). = (Ta + Tb + Tc) × 1/3), the control unit 32 of the third blower 30 directs the wind direction of the blower main body 31 toward the first blower 10 and the second blower 20 by the swing motion. To control.

  Next, after Ta-2 = Tb-2 = Tc-2> Td-2 (= Td), Ta-3 = Tb-3 = after elapse of a third time longer than the second time. Tc-3 = Td-3 (= (Ta + Tb + Tc + Td) × 1/4), the control unit 42 of the fourth blower 40 changes the wind direction of the blower main body 41 to the first blower 10 by swinging motion. Control is performed so that the second blower 20 and the third blower 30 are directed.

  Thereby, the temperature nonuniformity in the space in greenhouse 100 for horticulture is eliminated. Moreover, the unevenness of humidity (saturation) and carbon dioxide concentration is also eliminated. However, instead of the control based on the temperature, control based on humidity (saturation) or carbon dioxide concentration may be performed.

  As another control method for eliminating the temperature unevenness of Ta> Tb> Tc> Td, the temperature information Ta-4 in the first blower 10 is the fourth blower 40 after the fourth time has elapsed. The control unit 12 of the first blower 10 blows air toward the fourth blower 40 so as to coincide with the temperature information Td-4 at (Ta-4 = Td-4 = (Ta + Td) × 1/2). The blower body 11 may be controlled as described above. Further, after the fifth time has elapsed, the temperature information Tb-5 in the second blower 20 matches the temperature information Tc-5 in the third blower 30 (Tb-5 = Tc-5 = (Tb + Tc). × 1/2), the blower body 31 may be controlled such that the control unit 22 of the second blower 20 blows air toward the third blower 30. In this case, Ta-6 = Tb-6 = Tc-6 = Td-6 (= (Ta + Tb + Tc + Td) × 1/4) after a lapse of a sixth time longer than the fourth time and the fifth time. To control the blower body, such as blowing air from two high-temperature blowers to each low-temperature blower with Ta-4 = Tb-4 and Tc-5 = Td-5 become.

  In the above description, the case where the heaters 50 and 60 are installed in the space in the greenhouse for horticulture 100 has been described. However, when the air conditioner is installed in the space in the greenhouse horticulture 100, local Therefore, air is preferably blown from the low-temperature side blower toward the high-temperature side blower.

  In the present embodiment described above, each of the plurality of fans 10, 20, 30, 40 included in the blower system includes the blower main bodies 11, 21, 31, 41 that perform the blow, and the blower main bodies 11, 21, 31, 41. The control information 12, 22, 32, and 42 for controlling 41 and the environmental information on the space in the greenhouse for greenhouses 100, which is an example of a space in which the plurality of fans 10, 20, 30, and 40 are installed, are sent to other fans 10. , 20, 30, 40, and communication units 13, 23, 33, 43. In addition, the control units 12, 22, 32, and 42 send air from the blower to the other blower so as to eliminate the difference in environmental information based on the environmental information obtained by the blower and the environmental information obtained by the other blower. The blower main bodies 11, 21, 31, 41 of the blower having the control unit are controlled so as to be performed, or to stop when blowing from another blower toward the blower.

  In this way, since the blower main bodies 11, 21, 31, and 41 blow the air toward the blowers 10, 20, 30, and 40 so as to eliminate the difference in environmental information, a small amount of air unevenness such as temperature unevenness in the space is reduced. It can be eliminated by using the air volume. Therefore, according to this Embodiment, the air nonuniformity of the space where several air blowers 10, 20, 30, and 40 are installed can be eliminated efficiently. In addition, since air unevenness in the space can be efficiently eliminated, it is possible to prevent uneven growth of crops to be cultivated and the spread of diseases, heating, cooling, humidification (or fine fog cooling). Machine), a dehumidifier, a carbon dioxide generator, etc. can be saved, or it is connected to a work for eliminating air unevenness in the space for greenhouse 100 for horticulture, that is, connected to a heater or the like. It is possible to avoid work that has become a heavy labor with the recent aging of the agricultural population, such as ingenious arrangement of ducts and opening and closing of skylights, and it is possible to reduce the number of blowers 10, 20, 30, 40 It is also possible to obtain an additional effect of.

  Moreover, in this Embodiment, the control part 12,22,32,42 stops the fan main body which is operate | moving, when the difference of environmental information becomes below a predetermined value. Therefore, for example, when the blower body is stopped, the user of the blower system visually confirms that there is no cause of air non-uniformity in the space where the window is unintentionally left open. On the contrary, if the blower body is always in operation, there is a possibility of causing air unevenness in the space where the window is left unintentionally opened. The user of the system can confirm it visually.

  In the present embodiment, the plurality of blowers are three or more blowers 10, 20, 30, and 40. The blower main bodies 11, 21, 31, and 41 have variable wind directions, and the control units 12 and 22 , 32, 42 are controlled so that the wind direction of the blower bodies 11, 21, 31, 41 is directed to one of the other two or more blowers or to the other two or more blowers by a swing motion. To do. Thereby, the air blower main bodies 11, 21, 31, and 41 can blow toward one or more air blowers 10, 20, 30, and 40 suitable for eliminating the difference in environmental information. Therefore, the air nonuniformity of the space where the plurality of blowers 10, 20, 30, 40 are installed can be more efficiently eliminated.

  In the present embodiment, each of the plurality of fans 10, 20, 30, and 40 further includes sensors 14, 24, 34, and 44 that acquire environmental information, and the control units 12, 22, 32, and 42 are The blower bodies 11, 21, 31, and 41 are controlled based on the environmental information acquired by the sensors included in the blower and the environmental information acquired by sensors included in the other blowers. Thus, since the sensors 14, 24, 34, and 44 are provided integrally with the blowers 10, 20, 30, and 40, the configuration of the blower system can be simplified. In addition, when the blower main body 11, 21, 31, 41 blows air toward the blower 10, 20, 30, 40, the blower directly blows to the environmental information acquisition position by the sensors 14, 24, 34, 44. be able to. Therefore, the air nonuniformity of the space where the plurality of blowers 10, 20, 30, 40 are installed can be more efficiently eliminated.

  Moreover, in this Embodiment, the heaters 50 and 60 are installed in the space in the greenhouse horticulture 100 which is an example of the space where the several air blowers 10, 20, 30, and 40 are installed, and environmental information is The control units 12, 22, 32, and 42 include the fan main bodies 11, 21, 31, and 41 so that the temperature information is sent from the high-temperature side blower toward the low-temperature side blower. To control. Therefore, the temperature unevenness caused by the hot air discharged from the heaters 50 and 60 can be solved by blowing air from the blower having the temperature information to the blower having the temperature information toward the low temperature side. Therefore, the temperature unevenness in the case where the heaters 50 and 60 are installed in a space in which the plurality of blowers 10, 20, 30, and 40 are installed can be efficiently eliminated. In this manner, the space in the greenhouse for horticulture 100 can be a precise greenhouse environment.

10, 20, 30, 40 Blower 11, 21, 31, 41 Blower main body 12, 22, 32, 42 Control unit 13, 23, 33, 43 Communication unit 14, 24, 34, 44 Sensor 15 Drive unit 16 Upper protrusion 17 Mounting bracket 18 Mounting bolt 50, 60 Heater 100 Greenhouse for horticulture 101 Bar

Claims (6)

A blower system comprising a plurality of blowers,
Each of the plurality of blowers is
A blower body for blowing air,
A control unit for controlling the blower body;
A communication unit that communicates environmental information of a space in which the plurality of fans are installed with other fans,
The control unit blows air from the blower to the other blower so as to eliminate the difference between the environmental information based on the environmental information obtained by the blower and the environmental information obtained by the other blower. Controlling the blower body of the blower having the control unit so as to stop or stop when blowing air from the other blower toward the blower,
A blower system characterized by that.   The said control part stops the said air blower main body which is operate | moving, when the difference of the said environmental information becomes below a predetermined value, The ventilation system of Claim 1 characterized by the above-mentioned. The plurality of fans are three or more fans,
The blower body has a variable wind direction,
The control unit controls the wind direction of the blower main body to be directed to one of the other two or more blowers or to be directed to the other two or more blowers by a swing motion.
The blower system according to claim 1 or 2, characterized in that. Each of the plurality of fans further includes a sensor that acquires the environmental information,
The control unit controls the blower body based on the environmental information obtained by the sensor of the blower and the environmental information obtained by the sensor of the other blower.
The ventilation system of any one of Claim 1 to 3 characterized by the above-mentioned. In the space where the plurality of fans are installed, a heater is installed,
The environmental information includes temperature information,
The control unit controls the blower main body so that the temperature information is blown from the blower on the high temperature side toward the blower on the low temperature side.
The ventilation system of any one of Claim 1 to 4 characterized by the above-mentioned. It is a blower control method in each blower of a plurality of blowers having a blower body for performing blowing,
Based on the environmental information acquired by the blower and the environmental information acquired by the other blower, so as to blow the air from the blower to the other blower so as to eliminate the difference in the environmental information, or Controlling the blower main body so as to stop when blowing from another blower toward the blower,
A blower control method characterized by the above.

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